U.S. patent application number 12/864162 was filed with the patent office on 2011-02-24 for multipurpose load lifting work platform or/and composite bridge structure.
This patent application is currently assigned to Beijing Shengtianyl Parking Management Co., Ltd.. Invention is credited to Meng Sun.
Application Number | 20110041267 12/864162 |
Document ID | / |
Family ID | 41134820 |
Filed Date | 2011-02-24 |
United States Patent
Application |
20110041267 |
Kind Code |
A1 |
Sun; Meng |
February 24, 2011 |
MULTIPURPOSE LOAD LIFTING WORK PLATFORM OR/AND COMPOSITE BRIDGE
STRUCTURE
Abstract
The present invention discloses a multi-purpose load lifting
work platform or/and composite bridge structure, comprising a
framework, at least one work platform, a drive mechanism, and an
electrical control devices. One end of the pole-shaped structure is
connected with the framework in a movable manner, and the other end
of the pole-shaped structure is connected with the work platform in
a movable manner, the work platform can run with the pole-shaped
structure together. The work platform can run in a curve track
relative to the framework by power, and can stop at any position in
running track. This invention can provide two platforms working
coordinately or a single platform working independently. The
working area of the two platforms greatly exceeds that of the
existing common equipment with a single platform. It can load bulky
objects without sway, and can also be used as composite or assembly
bridge structure.
Inventors: |
Sun; Meng; (Beijing,
CN) |
Correspondence
Address: |
LEYDIG VOIT & MAYER, LTD
TWO PRUDENTIAL PLAZA, SUITE 4900, 180 NORTH STETSON AVENUE
CHICAGO
IL
60601-6731
US
|
Assignee: |
Beijing Shengtianyl Parking
Management Co., Ltd.
Beijing
CN
|
Family ID: |
41134820 |
Appl. No.: |
12/864162 |
Filed: |
March 2, 2009 |
PCT Filed: |
March 2, 2009 |
PCT NO: |
PCT/CN2009/070597 |
371 Date: |
September 21, 2010 |
Current U.S.
Class: |
14/77.1 ;
182/141; 182/19 |
Current CPC
Class: |
B66F 7/28 20130101; B66F
7/0633 20130101; E04H 6/06 20130101 |
Class at
Publication: |
14/77.1 ;
182/141; 182/19 |
International
Class: |
E04G 1/00 20060101
E04G001/00; E01D 21/00 20060101 E01D021/00; E04G 1/24 20060101
E04G001/24 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 1, 2008 |
CN |
200810103187.2 |
Apr 15, 2008 |
CN |
200820079945.7 |
Claims
1. A multi-purpose load lifting work platform or/and composite
bridge structure comprising a framework, at least one work
platform, a drive mechanism, and an electrical control devices,
characterized in that one end of a pole-shaped structure (41) is
connected with the framework in a movable manner, and the other end
of the pole-shaped structure (41) is connected with the work
platform in a movable manner, the work platform can run with the
pole-shaped structure together; the work platform can run in curve
track relative to the framework by power, and can stop at any
position in running track.
2. A multi-purpose load lifting work platform or/and composite
bridge structure according to claim 1, characterized in that the
forms of said pole-shaped structure (41) include: the semi-circular
pole-shaped structure, the circular pole-shaped structure, the
right-angle pole-shaped structure, the elliptical pole-shaped
structure, the semi-elliptical pole-shaped structure, the drop
pole-shaped structure, the semi-drop pole-shaped structure, the
inverted drop pole-shaped structure, the inverted semi-drop
pole-shaped structure.
3. A multi-purpose load lifting work platform or/and composite
bridge structure according to claim 1, characterized in that the
driven and driving aided mechanism is assembled, it solves the
issues that the linkage mechanics can not work smoothly in
low-speed movement and the possible reversal or failure; the driven
and driving aided mechanism can converse and transfer the kinetic
energy and potential energy between two work platforms; the driven
and driving aided mechanism has two types, any one of two types of
the driven and driving aided mechanisms can be used in the
inventive equipment independently, and they can also replace each
other or be combined together in the equipment with a manner of all
structure or one part of the structure of each type, even can be
used one part of the structure of each type in the equipment; in
addition, two types can be used in the equipment, and can also be
used in the other equipment requiring coordination-movement as one
method and principle.
4. A multi-purpose load lifting work platform or/and composite
bridge structure according to claim 1 or claim 2, characterized in
that the driven and driving aided mechanism comprises the
pole-shaped structure (41), a sprocket (42), a bearing box (43) and
a chain (44), wherein, one end of pole-shaped structure is
connected with framework through the bearing box (43), the sprocket
(42) is connected with one end of pole-shaped structure (41), the
chain (44) is encircled on the sprockets (42).
5. A multi-purpose load lifting work platform or/and composite
bridge structure according to claim 1 or claim 2, characterized in
that the driven and driving aided mechanism comprises the
pole-shaped structure (41), the wire rope, chain, belt or rope
encircled in the grooves of rim for pole-shaped structure, the
bearing box (43), a shaft (50); the shaft (50) passes through the
pole-shaped structure, and is fixed at the framework through the
bearing box (43); the wire rope, chain, conveyor belt or cord is
encircled in the groove of the rim for pole-shaped structure,
wherein one end of steel wire rope and rope needs to be fixed in
the grooves of the rim for pole-shaped structure.
6. A multi-purpose load lifting work platform or/and composite
bridge structure according to claim 1, characterized in that the
pole-shaped structures (41) are encircled and connected by the wire
rope, chain, conveyor belt or cord independently or mutually,
achieving the coordinated movements.
7. A multi-purpose load lifting work platform or/and composite
bridge structure according to claim 1, characterized in that a
obstacle monitoring device (6) can be assembled optionally at the
front and rear side of work platform, which can avoid the colliding
between the work platform and surrounding obstacles or people; the
work platform is furnished with a blocking devices (9), which is
equipped with a spring button (95) with a keyhole (94), a pulling
handle (99), an axis (97) with a pulley (96), the blocking device
is more convenient for using, the blocking device can also be used
independently on the ground of car park as a parking lock; a touch
and stop device (10) is fixed at one side of work platform, it can
stop the equipment quickly while the work platform contacts
surrounding obstacles or people; a wheel (7) can be installed the
base of the framework of the equipment optionally to provide
mobility and thus optimize the reasonable allocation of equipment
resources.
8. A building-bridge method for using a multi-purpose load lifting
work platform or/and composite bridge structure as a bridge
structure, comprising: operating one or more equipment as
characterized in claims 1 to 7 to allow the work platforms of each
equipment to stay at the same horizontal position or close to the
same horizontal position, and connecting all work platforms from
the front to the end, so the bridge can be built quickly; building
the bridge by combining the composite bridge structure with the
known structures of bridge can achieve the same effect.
9. A multi-purpose load lifting work platform or/and composite
bridge structure according to claim 8, characterized in that when
dismantling the bridge, the equipment can be operated to "shrink"
into the upper and lower platforms automatically, then it will be
towed away by the construction party; if a certain section of work
platform is failed or damaged, a new equipment can replace such
section of equipment, or the equipment can be controlled to lower
the failure or damage section of platform for maintenance and
replacement at low altitudes or near the level of ground or
sea.
10. A multi-purpose load lifting work platform or/and composite
bridge structure according to claim 8, characterized in that when
the composite bridge structure is used to build a bridge, a certain
altitude difference between the platforms is allowed, the work
platform can be made in the horizontal platform, and can also be
made in concave-shape or bending-surface platform according to
actual needs.
Description
FIELD OF THE INVENTION
[0001] The invention relates to a multipurpose load lifting work
platform, which can be also used as a modular structure for
assembling a bridge. The multipurpose load lifting work platform is
applicable to the following fields: crane, load lift, elevator,
stage equipment, movable foundation for mobile house, stereoscopic
parking equipment, stereoscopic storing and logistics equipment,
carrying equipment, and bridge structure.
BACKGROUND OF THE INVENTION
[0002] Most of current cranes, lifts, elevators or other carrying
equipment works with the track of vertical lifting, the loads
lifted sway back and forth and the horizontal stability of the load
is poor. Also, only one work platform is provided. These defects
result in their limited scope of use. In addition, each of the
equipment consumes a considerable amount of energy during
operation.
[0003] On the other hand, in bridge construction, modular
manufacturing and assembly have been achieved, but still need
bridge machine or crane hoisting modular construction for accurate
installation, and need a large number of artificial precision
operations, and need a long period time of building. Furthermore,
there are problems which remain to be solved in bridge
construction, including long construction period and high degree of
difficulty in construction and dismantling. In addition, most of
the composite rapid bridging structures or machineries can be used
only for bridging rather than for other purposes.
SUMMARY OF THE INVENTION
[0004] The invention aims at overcoming the above deficiencies and
providing a load lifting equipment with a curve trajectory. The
load lifting equipment can provide the cooperated work of two
platforms or the independent work of one platform. The pole-shaped
structure is hinged with and supports the work platform. The work
platform can move relative to the framework in a curve track and
can stop at any position on the movement track. The working area of
the two work platforms is substantially larger than that of the
currently common load lift, elevator, crane and other lifting and
carrying equipment operated with a single platform. The equipment
can load large-size objects such as construction materials,
automobiles, ores, ships, mobile houses, containers, etc., without
sway, and also can be used as a composite or assembly type bridge
structure.
[0005] In addition, wireless transmitting and receiving devices can
be optionally assembled respectively on the front and rear ends of
the work platform during the transition movement of the work
platform. When an obstacle is identified within the predetermined
distance, such as a barrier within 1.5 m, the wireless transmitting
and receiving device sends a signal to stop the running equipment,
thus ensuring the work platform not to collide with the surrounding
obstacles or persons during the running of the equipment.
[0006] A new type blocking device with a spring button can be
assembled optionally on the equipment. It can prevent a load from
sliding down during the work of the equipment. In addition, wheels
can be optional on four corners of the base of the framework of the
equipment such that the equipment has mobility and can be moved to
anywhere. Pickets are arranged inside the four columns and can be
used for fixing on loose and soft foundations (such as outdoor sand
grounds).
[0007] A touch and stop device can be assembled optionally at each
work platform of the inventive equipment on a side opposite to the
automatic obstacle monitoring device to ensure the safety when the
inventive equipment touches an obstacle and stops at the side of
the work platform during operation.
[0008] When operating one or more inventive equipment, the work
platforms of every equipment are stayed at or close to the same
horizontal position (a certain height difference between the work
platforms is permitted) and the equipment are connected from the
front to the end, the slope is arranged at both ends, a bridge can
be built quickly, as shown in FIG. 11. Of course the inventive
equipment can also be combined with the known bridge structure to
build a new bridge, as shown in FIG. 11-1. A cushion layer of
elastic materials can be laid at the joint to reduce bumping on
road surface. A certain height difference between the platforms is
permitted. In addition to having a level surface, the platform can
also be made in concave-shape or bending-surface platform according
to actual needs. By using such a work platform as the bridge
structure, both assembly and disassembly of the bridge can be done
easily. As the degree of freedom between structures of said
equipment is high, the anti-shock performance is good.
[0009] The design scheme of the invention is as follows:
[0010] The load lifting work platform or/and composite bridge
structure, comprising a framework, upper and lower work platforms,
a platform driving mechanism, driven and driving aided mechanism,
an electrical control device, an automatic obstacle monitoring
device which can be optional, wheels and pickets which can be
optional, and a blocking device and a touch and stop device which
can be optional. The load lifting work platform or/and composite
bridge structure provides a load lifting equipment with single
platform operating or two platforms cooperatively operating. The
work platform can run in a curve path around a direct or indirect
connection point between one end of pole-shaped structure and the
framework, and can stop at any position on the movement path.
[0011] The work platform moves with the aid of driving mechanism
and all or part of driven and driving mechanism, so that the work
platform run in curve path movement around the direct or indirect
connection point between the pole-shaped structure and the
framework.
[0012] The detailed structure of the equipment is described as
follows:
(1) The framework is classified into two types: four-column type
and two-central-column type according to the number of the columns
with fixed pulleys on the top. 1. Four-column type framework,
comprising a base 11 and four columns 12, and crossbeam 13, column
provided with a fixed pulley 14 on its top and a guide pulley close
to the bottom 15, and an intermediate supporting structure 16
between two crossbeams 13. In this case, the intermediate
supporting structure 16 can be optional depending on the actual
load. The intermediate supporting structure is designed as a or
shape, as shown in FIG. 1. The four-column type framework has a
higher safety effect and a more reasonable stress state than the
two-central-column type framework structure. 2. Two-central-column
type framework: The difference between two-column-type and
four-column-type is that two central columns 121 with two pulleys
fixed on its top replace four columns with one pulley fixed at its
top, and the rest of the structure is the same as the four-column
type framework, as shown in FIG. 11-1 and FIG. 11. This framework
structure is the most economical, but load is concentrated on the
two central columns, thus higher material strength and structural
strength of the central columns are required. (2) The work
platform, comprising the upper layer work platform 21 and the lower
layer work platform 22, and the upper and lower layer work
platforms can move interactively through the coupling of the driven
and driving aided mechanism. When only one platform is required to
work with, it is possible to arrange and use one part of the
structure of the driven and driving aided mechanism, as shown in
FIG. 244 and FIG. 245. The work platform is hinged with the
pole-shaped structure and has a curve movement path, and can stop
at any position on the movement path. The work platform can be made
in different shapes, such as elliptical or circular, and most often
in a rectangular shape. The work platform can be one having a level
surface or one having a convex-concave non-level surface according
to actual requirements, and such a work platform has a certain
curve effect. For example, when a ship is to be lifted, the work
platform can be made in a platform with arc-shaped internal surface
or can be made in a net-structure platform to facilitate berthing,
as shown in FIG. 223 and FIG. 224. Two work platforms provided for
the same equipment can be different in size to adapt to special
requirements. The platform can be also used as a movable foundation
for a mobile house, as shown in FIG. 244 and FIG. 234. When the
work platform is used as a stage equipment, the platform can be
designed as a long plate shaped structure which is heightened and
thickened, as shown in FIG. 7-1, and can be merged into a large
stage in array.
[0013] It should be noted that to adapt to the requirements for
lifting in some circumstances, the platform can be simplified to
the crossbeam, hook, lifting ring or special-purpose fixtures and
riggings, as shown in FIGS. 225, 226, 227 and 228. If the
requirements for the movement stability of a load to be lifted are
not strict, which means swaying back and forth of the load during
movement is permitted, it is possible to use one or two pole-shaped
structures in parallel as the lifting mechanism to lift the load,
and the work platform is simplified to the hook, lifting ring or
special-purpose fixtures and riggings, as shown in FIGS. 228 and
229.
[0014] All of these examples as mentioned above are one part of
various forms of the work platform.
(3) The driving mechanism as shown in FIG. 1, comprising a
deceleration motor 31, a conveyer belt 32, a wire drum or chain
receiving mechanism 33, and the steel wire ropes or chains 34-1 and
34-2 (34-1 and 34-2 can be selected as either the steel wire rope
or the chain, conveyer belt or cord) with one end connected with 33
and the other end fixed on the work platform or its end fixed and
encircled in the groove of the rim of the semi-circular structure,
and 34-1, 34-2 can be configured as multi-strand steel wire ropes
or chains for heavy loads; wherein the gear motor 31 drives the
roller 33 to rotate through conveyer belt, 43-1, 43-2 rolled on the
steel drum is relaxed or tightened, and pull the appropriate
platform 21 and 22 to move. Due to some restrict condition or
requirement and in addition to being equipped with a driving
mechanism for itself, the equipment can also be provided with a
corresponding external driving mechanism while the equipment itself
is not equipped with a driving mechanism. For example, when used as
a bridge structure, the structure itself is very heavy, and the
equipment itself needs to move only once or twice while keeping a
stationary or stop state for most of the time. In this case, it is
neither economical nor sufficient to depend only on the
self-equipped driving mechanism of the equipment, and it needs the
external large type driving unit. (4) Driven and driving aided
mechanism: the mechanism runs with the platform and drives the
movement of the platform. It solves the issues that the linkage
mechanics can not work smoothly in low-speed movement and the
possible reversal or failure. The driven and driving aided
mechanism can converse and transfer the kinetic energy and
potential energy between two work platforms.
[0015] For the different types of the pole-shaped structures, two
types of driven and driving aided mechanisms are provided. Any one
of two types of the driven and driving aided mechanisms can be used
in the inventive equipment independently, and they can also replace
each other or be combined together in the equipment, or even be
used as one part of the structure of each type in the equipment. If
two types of mechanisms are used in combination, more safe
transmission guarantee will be provided to improve the work
efficiency.
[0016] The pole-shaped structure refers to a stable structure which
can be movably connected to the platform with the framework. One
end of the pole-shaped structure is hinged with and supports the
platform and the other end of the pole-shaped structure is
connected with the framework in a movable manner directly or
indirectly. The pole-shaped structures are encircled and connected
by the wire rope, chain, conveyor belt or cord independently or
mutually, achieving the coordinated movements. The pole-shaped
structures comprise right-angle pole-shaped structure,
semi-circular pole-shaped structure, circular pole-shaped
structure, elliptical pole-shaped structure, semi-elliptical
pole-shaped structure, drop pole-shaped structure, semi-drop
pole-shaped structure, inverted drop pole-shaped structure and
inverted semi-drop pole-shaped structure as will be mentioned
hereinafter, wherein the semi-elliptical pole-shaped structure and
elliptical pole-shaped structure are shown in FIGS. 2-20 and 2-21,
the drop pole-shaped structure, semi-drop pole-shaped structure,
inverted drop pole-shaped structure and inverted semi-drop
pole-shaped structure are shown in FIGS. 2-22, 2-23, 2-24 and 2-25,
which can increase or decrease the starting torque of the
equipment. According to the increase of the actual load of the work
platform, the pole-shaped structures can also adopt various
stressed structure forms in construction engineering or mechanical
engineering, such as truss structures, three forms of the truss
structures as shown in FIGS. 2-16-1, 2-16-2 and 2-16-3. The
pole-shaped structures can be made to be different in length to
adapt to special applications, such as the work platform required
with a slope. Each work platform is supported by at least one
pole-shaped structure 41, and generally is supported by four or six
pole-shaped structures; and if the actual load is very large, the
number of the pole-shaped structures needs to be increased. For
example, if six pole-shaped structures are selected to support the
work platform, the load can be shared uniformly, thus the cross
section area of each pole-shaped structure can be less, as shown in
FIG. 2-1.
[0017] Type 1, comprising right-angle pole-shaped structures 41
(briefed as right-angle pole 41), sprocket 42, a bearing box 43 and
chains 44. One end of the pole-shaped structure is connected on the
framework via the bearing box 43, the sprocket 42 is rigidly
connected with one end of the pole-shaped structure 41, and the
chain 44 is encircled on the sprocket 42. The assembly relationship
of each component is shown in FIG. 3-1. Each work platform is
supported by at least one pole-shaped structure 41. The figures
here are simplified to illustrate the principles briefly, and in
the illustration and description afterwards, the work platform
supported by four pole-shaped structures will be provided as an
example. The pole-shaped structure can be selected as any form of
the right-angle pole-shaped structures as shown in FIGS. 2-1, 2-2
and 2-3. The main function of pole-shaped structure bracing 46 is
to increase the structural strength. The material strength of Type
1 must be good enough to bear the torque which the sprocket 42
applies to the pole-shaped structure. The function of this
mechanism is to transfer the active movement of one work platform
to the other work platform and make the other work platform to move
cooperatively; the cooperative movement of the other work platform
conforms to the principle of the mutual conversion between the
potential energy and kinetic energy in physics such that a part of
the kinetic energy can be transferred back to the active-movement
work platform through the driven and driving aided mechanism.
Therefore, the driving mechanism can drive the work platform to
move without outputting too much power, thus achieving the
objective of energy saving. The schematic diagram for spatial
structure arrangement of pole-shaped structures, sprockets, chains,
steel wire ropes, and upper and lower layer work platforms is shown
in FIG. 4.
[0018] Type 2, comprising non-rectangular pole-shaped structures 41
(in particular comprising semi-circular pole-shaped structure,
circular pole-shaped structure, elliptical pole-shaped structure,
semi-elliptical pole-shaped structure, drop-shaped pole-shaped
structure, semi-drop pole-shaped structure, inverted drop
pole-shaped structure, inverted semi-drop pole-shaped structure),
steel wire ropes or chains 18, 19 and 20 (18, 19 and 20 can be
selected as either steel wire ropes or chains, conveyer belts or
cords, wherein, one end of the steel wire ropes or cords needs to
be fixed in the grooves of the rim of pole-shaped structure, and
the chains and conveyer belts can be selected to circle on the
pole-shaped structure or one end to be fixed at the pole-shaped
structure), bearing box 43, and a shaft 50. The shaft 50 passes
through a shaft hole arranged on the middle part of the pole-shaped
structure and is fixed on the framework by the bearing box 43; the
steel wire ropes or chains 18, 19 and 20 are encircled in the
groove of the rim of the pole-shaped structure. The assembly
relationship of the members is shown in FIG. 3-2. Afterwards, the
description will be provided for the semi-circular or circular
pole-shaped structure as an example. The semi-circular or circular
pole-shaped structure can be selected as any form of those shown in
FIGS. 2-5, 2-6, 2-7, 2-8, 2-18, 2-19, 2-27, 2-28 and 2-29, wherein,
FIGS. 2-6 and 2-61 are side views for two forms of the pole-shaped
structure. The semi-circular or circular pole-shaped structure can
be integrally shaped or be formed in a pieces-splicing manner,
wherein, FIGS. 2-18 and 2-19 illustrate the semi-circular or
circular pole-shaped structure with toothed rim and these
pole-shaped structures are used with the chains. The steel wire
ropes are mounted in the grooves of the semi-circular rims of the
semi-circular pole-shaped structures, as shown in FIGS. 2-6 and
2-7. The semi-circular pole-shaped structure can save more
materials than the circular pole-shaped structure, and is easy to
fix with the upper part of the pole-shaped structure. In the
appropriate position, the semi-circular pole-shaped structure and
the circular pole-shaped structure can replace each other, as shown
in FIGS. 2-15 and 234. There are various connection manners between
the circular and semi-circular pole-shaped structures, and the
relatively economical and practical encircling paths and connecting
positions are set as follows: the grooves of the rims of the
pole-shaped structures 41-1 and 41-2 are connected by the steel
wire rope or chain 18, both ends of the steel wire rope or chain 18
are fixed on the groove of the rim of pole-shaped structure, the
position of the fixing point is indicated by a small circle painted
on the rope, as shown in FIGS. 2-9, 291, 292, 293 and FIG. 2-15
illustrating the relevant encircling path and position. The grooves
of the rims of the semi-circular pole-shaped structures 41-3 and
41-4 are connected by the steel wire rope or chain 19, and the
position of the fixing point is indicated by a small circle painted
on the rope, as shown in FIGS. 2-10, 211, 212 and 213 and 2-15. The
grooves of the rims of the semi-circular pole-shaped structures
41-2 and 41-3 are connected by the steel wire rope or chain 20, and
the position of the fixing point is indicated by a small circle
painted on the rope, as shown in FIGS. 2-12, 266, 267 and 268 and
anyone of four types illustrated in FIG. 2-15. When completing
above connection measures, the functions of the sprocket 42 and the
chain 44 in Type 1 of the inventive equipment can be completely
replaced. One of three connection arrangements for 18, 19 and 20 as
mentioned above can be independently used as one part of the driven
and driving aided mechanism, as shown in FIGS. 244 and 245 when
only one work platform works, and also can be used with other
connection manners in combination, for example when two work
platforms work cooperatively.
[0019] Another advantage of selecting the Type 2 is that this type
can reduce the mechanical strength requirements of pole-shaped
structure, and reduce the sectional area of pole-shaped structure,
and save material and cost. The bracing of the pole-shaped
structure can be omitted. The disadvantage of Type 2 is that Type 2
is more complicated than Type 1. The figures here are simplified to
briefly explain the principles, the parts of the driven and driving
aided mechanism are shown only in FIG. 1 (the Type 1 and Type 2
driven and driving aided mechanisms are used in combination) and
FIG. 2-15 (Type 2 driven and driving aided mechanism is
independently used), and the driven and driving aided mechanism can
be also mounted on corresponding positions of other shown
figures.
[0020] In Type 1 and Type 2, there is a combined pattern of
pole-shaped structure. That is, a longer pole-shaped structure
replaces two adjacent pole-shaped structures in the middle of the
framework. This pole-shaped structure has one hole in the middle of
the structure for installing, both ends of the pole-shaped
structure hinge with two work platforms, as shown in FIGS. 2-26,
2-27, 2-28, 2-29 and 233. This combined pattern reduces the number
of the pole-shaped structures, but it needs high material strength
and structural strength for the pole-shaped structure. The working
state is shown in FIGS. 233 and 333.
(5) The electrical control device, comprising: a digital circuit
central control box 5 including a chip, a relay, a control switch,
an adjustable resistor, a transformer, a travel switch and the
like. The control switch can control the electric motor to rotate
positively and reversely and to stop; the travel switch and the
relay can control the work platform to stop on the determined
position. (6) The optional automatic obstacle monitoring device,
comprising: wireless transmitting and receiving devices 6 mounted
on the front and rear ends of the upper and lower work platforms,
as shown in FIG. 7.
[0021] When an obstacle is identified within the predetermined
distance, such as 1.5 m, a signal is sent to stop the running
equipment, thus preventing the work platform from colliding with
the surrounding obstacles or persons during the running of the
equipment.
(7) The wheels 7 can be assembled optionally on four corners of the
base of the framework of the inventive equipment such that the
inventive equipment has mobility. When equipped with a car chassis
and power, the equipment can be moved to anywhere like a car, to
optimize the reasonable allocation of equipment resources, as shown
in FIG. 8. Pickets 8 can be optional inside the four columns and
are used for the fixing on the loose and soft foundations (such as
outdoor sand grounds), as shown in FIG. 8. (8) The blocking device
9 can be assembled optionally to prevent objects parked on the work
platform from sliding down. The blocking device can be also used
separately on the ground of a parking lot as a parking bay lock.
The blocking device, comprising an inwardly bent angle steel 92
which is provided with a hole 91 on the particular position of the
side surface and has a generally inversed shaped section, a square
tube 93, a spring button 95 with a keyhole 94 at its head and an
insert tube at its rear, a shaft 97 with a wheel 96, a protective
edge 98 having a rotary axis, and a lifting handle 99, as shown in
FIGS. 9-1 and 9-2.
[0022] In use, the parking bay lock arranged horizontally is lifted
up by the lifting handle, and the spring button 95 embedded in the
inwardly bent angle steel automatically pops up and locks when
encountering the hole 91, thus representing a triangular supporting
state, as shown in FIGS. 9-3 and 9-4. When the parking bay lock is
to be unlocked, the spring button is pressed down with a finger,
and under the effect of its gravity, the blocking device
automatically slides down to a horizontal position, thus allowing
an object to pass by, as shown in FIG. 9-2.
(9) The optional touch and stop device 10: a touch and stop device
is mounted at each work platform on a side opposite to the
automatic obstacle monitoring device, and is provided with two
designs:
[0023] Design I: Two metal tubes 10-3 are mounted on two corners at
one side of the work platform, as shown in FIG. 10. The pressed
emergency stop switch 10-1 is fixed on the top of the metal tube,
and a pull 10-2 is connected between the two metal tubes and the
pull 10-2 is the one for activating another emergency stop switch.
When this side of the work platform collides with an obstacle
during the operation, the obstacle compresses the pressed emergency
stop switch or the pull is extruded, so the equipment stops
timely.
[0024] Design II: Elastic brackets 10-5 are mounted on two corners
of one side of the work platform. The bracket has many forms, and
the basic form is the door-shaped structure. Two legs of the
bracket are equipped with elastic materials and thus are flexible;
holes are provided in the middle of the elastic materials, and a
rod-shaped structure 10-4 on the bracket passes through the middle
hole of the elastic materials, and can contact another emergency
stop circuit when the elastic materials are compressed, thus
sending a signal to stop the equipment.
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In the drawings, 11 represents a base, 12 represents a
column, 121 represents a central column, 13 represents a crossbeam,
14 represents a fixed pulley, 15 represents a guide pulley, 16
represents an intermediate support structure, 2 generally
represents a work platform which is subdivided into 21 representing
an upper work platform and 22 representing a lower work platform,
23 represents a slope, 31 represents a gear motor, 32 represents a
conveyer belt, 33 represents a wire drum, 34 generally represents a
steel wire rope or chain having one end connected with the wire
drum and the other end connected with the work platform or
semi-circular or circular structure, wherein 34-1 represents a
steel wire rope or chain related to one work platform and 34-2
represents a steel wire rope or chain related to the other work
platform; 36 represents a rotating chassis, 41 represents the
pole-shaped structures, wherein 41-1, 41-2, 41-3 and 41-4 represent
optional semi-circular or circular pole-shaped structure, 42
represents a sprocket, 43 represents a bearing box, 44 represents a
chain, 45 represents an anti-chain-disengaging device, 46
represents a pole-shaped structure bracing, 47 represents a
semi-circular wheel, 48 represents a shaft hole of pin, 49
represents a pin, 50 represents a shaft, 5 represents a central
control box, 6 represents a wireless obstacle monitoring device, 7
represents a wheel (optional), 8 represents a picket for fixing on
the soft foundation (optional), 9 represents the whole blocking
device, 91 represents a hole, 92 represents the inwardly crimped
angle steel strut, 93 represents a square tube strut, 94 represents
a keyhole, 95 represents a spring button, 96 represents a wheel, 97
represents a shaft, 98 represents a protective edge with a rotating
axis, and 99 represents a lifting handle. 10-1 represents a pressed
type emergency stop switch, 10-2 represents a pull for activating
the emergency stop switch, 10-3 represents a metal tube, 10-4
represents a rod-shaped structure, and 10-5 represents an elastic
bracket. 18, 19 and 20 represent steel wire ropes, chains or
conveyer belts which are individually set to connect with the
circular or semi-circular strut at the particular positions
separately. 24 represents a crossbeam connected between the
columns, and 25 represents a slope and cushion layer.
[0026] FIG. 1 is an overall structure schematic diagram.
[0027] FIG. 2-1 is a view of one work platform supported by six
pole-shaped structures, with three pole-shaped structures arranged
in parallel on each side of the crossbeam.
[0028] FIGS. 2-2, 2-3, 2-4, 2-5, 2-6, 2-61, 2-7, 2-8, 2-16-1,
2-16-2, 2-16-3, 2-18, 2-19, 2-20, 2-21, 2-22, 2-23, 2-24, 2-25,
2-26, 2-27, 2-28 and 2-29 are schematic diagrams of various forms
for the pole-shaped structures, wherein FIGS. 2-6 and 2-61 are side
views of the non-right-angle pole-shaped structures.
[0029] FIGS. 2-9, 291, 292, 293, 2-10, 211, 212, 213, 2-12, 266,
267 and 268 illustrate the connection path, manner and position of
the steel wire rope, chain, conveyer belt or cord 18, 19 and 20 in
the groove of the rim of the semi-circular or circular pole-shaped
structure, and the small circle painted on the rope indicates the
position of the fixing point.
[0030] FIGS. 2-15 and 234 are schematic diagrams of the driven and
driving aided mechanism of Type 2 where the steel wire rope or
chain 18, 19 and 20 are connected completely; wherein one end of 34
is connected with the particular position of the rim of the
pole-shaped structure and the other end of 34 is connected with the
wire drum.
[0031] FIGS. 244 and 245 are overall structure diagrams with a
single work platform in operation.
[0032] FIGS. 2-16-1, 2-16-2 and 2-16-3 illustrate some truss
structure forms employed by the pole-shaped structures under a
heavy load.
[0033] FIGS. 223 and 224 illustrate the work platforms with
arc-shaped internal surfaces when lifting ships.
[0034] FIGS. 225, 226, 227, 228, 229 and 230 illustrate various
change forms of the work platform which is simplified as the
crossbeam, hook, hoisting ring, special-purpose fixtures and
rigging.
[0035] FIG. 3-1 is a partially enlarged structural schematic
diagram of the Type 1 driven and driving aided mechanism, and the
pole-shaped structure, chain, sprocket, shaft and bearing box are
assembled together; FIG. 3-2 is a partially enlarged structural
schematic diagram of the Type 2 driven and driving aided mechanism,
and the semi-circular or circular pole-shaped structure, steel wire
rope or chain, shaft and bearing box or shaft sleeve are assembled
together.
[0036] FIG. 4 is a spatial layout diagram of the pole-shaped
structure, sprocket, chain, steel wire rope, and the upper and
lower work platforms. FIG. 41 is a schematic diagram to illustrate
the connection of the pole-shaped structure and the platform when
two work platforms move.
[0037] FIG. 5 is a working state diagram with one work platform
running up and the other work platform running down while selecting
right-angle pole-shaped structure to assembly on the equipment.
[0038] FIG. 6 is a working state diagram with one work platform
running up and the other work platform running down while selecting
semi-circular pole-shaped structure to assembly on the
equipment.
[0039] FIG. 7 is a working state diagram to illustrate how the
automatic obstacle monitoring device works. FIG. 7-1 illustrates
the structural form of the work platform when it is used as stage
equipment.
[0040] FIG. 8 is an installed position diagram of the wheels and
pickets on the soft foundation.
[0041] FIG. 9-1 is an internal structural diagram for the blocking
device, and here the spring button is compressed by an external
force. FIG. 9-2 is a side view of the blocking device placed
horizontally. FIG. 9-3 is a top view of the blocking device when it
is lifted up and locked, and FIG. 9-4 is a side view of the
blocking device when it is lifted up and locked.
[0042] FIG. 10-1 is a schematic diagram as Design 1 for the touch
and stop device; 10-1 represents the pressed stop switch, 10-2
represents the pull for activating the stop switch, and 10-3
represents two metal pole-shaped structures. FIG. 10-2 is a
schematic diagram as Design 2 of the touch and stop device; 10-4
represents rod-shaped structure and 10-5 represent the door-shaped
structure.
[0043] FIG. 11-1 illustrates two middle columns with two fixed
pulleys on the top, and FIG. 11 is an overview diagram of
two-central-column type framework, wherein the steel wire ropes or
chains 34-1, 34-2 are connected with the circular pole-shaped
structure 41-2, 41-3 respectively. The small circle painted on the
rope indicates the position of the fixing point.
[0044] FIG. 12 is a schematic diagram of two-central-column type
framework, wherein the steel wire rope or chain 34-1 or 43-2 is
connected with pole-shaped structure 41-1 or 41-4, respectively.
The small circle painted on the rope indicates the position of the
fixing point.
[0045] FIG. 233 is an overview diagram of the combined pole-shaped
structure arranged with four-column type framework, and FIG. 333 is
an overview structure diagram of two-central-column type
framework.
[0046] FIG. 13 is a side elevation view of operating one or more
work platforms of the equipment to build a bridge, and the view is
simplified by omitting the driven and driving aided mechanism. FIG.
13-1 is a schematic diagram wherein the inventive equipment is
combined and arranged with the existing prior bridge structure to
build a new bridge. FIG. 13-2 illustrates a method for multiple
parallel work platforms lifting synchronously.
[0047] FIG. 14 is a schematic perspective view, and multiple work
platforms are combined to build a bridge, and the framework is
two-central-column type and four-column type framework, and the
view is simplified by omitting the driven and driving aided
mechanism and only drawing some cables at a few columns, wherein 23
represents the crossbeam between the columns, and the shadowed
areas represent the filling and cushion layer arranged for the
flat-surface road of the lower channel.
[0048] FIG. 15 is a schematic diagram for bridge surface shape when
multiple work platforms are combined to build a bridge. The work
platform can be a horizontal surface platform or curve surface
platform, wherein 2 are various shapes of the work platform, 25 is
the slope and expansion joint device.
DETAILED DESCRIPTION
[0049] Hereinafter, the invention will be further described in
combination with drawings and examples. The framework is selected
as a four-column type framework with pulleys at its top, and the
load is exampled as vehicle. Due to different types of the
pole-shaped structures selected, the driving mode of the equipment
is different, which is embodied in the different position for
connection of the steel wire rope or chain 34. Now the description
will be provided according to two types:
[0050] Type 1: when the right-angle pole-shaped structures shown in
FIGS. 2-1, 2-2 and 2-3 are selected, the steel wire rope or chain
34 are fixed on the work platform, as shown in FIGS. 5, and 34 can
be selected as steel wire rope or chain, or be selected as cord or
conveyer belt. Hereinafter, in order to simplify the description,
34 will be exampled as the steel wire rope throughout the
description. When a vehicle is parked on the work platform 22 and
the work platform 22 is moved to the upper level, the parking
equipment is in the status shown in FIG. 5. When starting the
switch, the gear motor 31 rotates positively to drive the wire drum
33 and the steel wire rope 34 to move via the conveyer belt 32, the
steel wire rope 34-1 fixed on the work platform 22 is tightened
while the steel wire rope 34-2 connected with another work platform
21 is loosened. Under the pulling of the steel wire rope 34-1, the
work platform 22 runs up actively to drive the driven and driving
aided mechanism (including four pole-shaped structures 41, four
sprockets 42 and chains 43) hinged with the work platform 22 to
rotate. With the aid of the chain transmission, the rotation of
these four sprockets drives other four sprockets and pole-shaped
structures hinged with another work platform 21 to rotate, thus
driving the work platform 21 to run down correspondingly. Two work
platforms 21 and 22 can move simultaneously and transmit the power
via the chain and sprocket, thus it can save the output of
electrical power from the motor. When the work platform 22 runs up
to the predetermined location, the other work platform 21 must run
down to the predetermined location. When the work platform 22
approaches to the predetermined location, the travel switch will be
touched, then the equipment stops, shown in FIG. 5.
[0051] Upon taking the vehicle from the work platform, the gear
motor reverse run is controlled by switch, so that the drum and the
wire rope are driven to reverse, and the wire rope 34-1 is relaxed,
and the work platform 22 runs down, and the steel wire rope 34-2
hinged with the other work platform 21 is tightened to drive the
other work platform 21 to run up actively. With the transmission by
the sprockets and chains, the work platform 22 runs accordingly
from a high level to the ground, thus completing the procedure for
taking a vehicle.
[0052] The process of parking or taking a vehicle at the work
platform 21 is opposite to the process of parking or taking a
vehicle at work platform 22.
[0053] Type 2: when the semi-circular or circular pole-shaped
structures is selected, the steel wire rope or chain or conveyer
belt 34 is fixed on the particular position of the semi-circular or
circular pole-shaped structure at the end of the groove of the rim,
as shown in FIGS. 6 and 234; or the steel wire rope or chain or
conveyer belt 34 can also be fixed on a particular position of the
work platform, as shown in FIG. 1. When a car is parked on the work
platform 22 and the work platform 22 is moved to the upper level,
the parking equipment is in the status shown in FIG. 6. When
starting the switch, gear motor 31 runs and drives the drum 33 and
the wire rope 34 via the transmission belt 32, the wire rope or
chain 34-1 which is fixed in the groove of semi-circular
pole-shaped structure is tightened, and the wire rope or chain 34-2
which is fixed in the groove of semi-circular pole-shaped structure
for the hinge with the work platform 21 is relaxed. Under the
pulling by the steel wire rope or chain 34-1, the pole-shaped
structure 41 is rotated around the shaft, and driving the work
platform 22 to run up actively and thus driving the four
pole-shaped structures 41 hinged with the work platform 22 to
rotate. The rotation of these four pole-shaped structures, with the
aid of the transmission of the steel wire rope or chain 18, 19 and
20 in the groove of the rim, then drives another four pole-shaped
structures 41 hinged with the work platform 21 to rotate, thus
driving the other work platform 21 to run down correspondingly. The
two work platforms transmit power to each other through the steel
wire rope or chain 18, 19 and 20, thus ensuring the cooperative
synchronous movement and also saving the power output of the
electric motor. When the work platform 22 runs up to the
predetermined position, the other work platform 21 runs down to the
predetermined position simultaneously. When the work platform 22
approaches the predetermined rising position, it contacts the
travel switch, and thus the running equipment stops, as shown in
FIG. 6.
[0054] Upon taking the vehicle form the work platform, the gear
motor reverse run is controlled by switch, so that the drum and
wire rope are driven to reverse, and the wire rope rounded in the
groove of semi-circular pole-shaped structure is relaxed, and the
work platform 22 runs down, and the wire rope 34-2 rounded in the
groove of semi-circular pole-shaped structure is tightened to drive
another work platform 21 to run up.
[0055] With the transmission by the steel wire rope or chain 18, 19
and 20, the work platform 22 runs accordingly from a higher level
to the ground, thus completing the procedure for taking a
vehicle.
[0056] The process of parking or taking a vehicle at the work
platform 21 is opposite to that of the work platform 22.
[0057] When the two-central-column type framework is selected for
the inventive equipment, the arrangement position of the driving
mechanism and the driven and driving aided mechanism are different
from those mentioned above, but the mode of movement is
substantially the same. Specifically, the steel wire rope or chain
34-1 and 34-2 is connected with the circular pole-shaped structure
41-2 and 41-3 respectively, as shown in FIG. 11; wherein, one end
of 34-1 is connected to the circular pole-shaped structure 41-2,
and the other end of 34-1 is passed though a fixed pulley on a
central column 121, and runs downwards to connect with the wire
drum or chain receiving device (the central column 121 is provided
with two fixed pulleys in parallel on its top); one end of 34-2 is
connected with the circular pole-shaped structure 41-3, and the
other end of 34-2 is passed though the other fixed pulley on the
central column 121, and runs downwards to connect with the wire
drum or chain receiving device. Alternatively, 34-1 and 34-2 can
also be connected with the circular pole-shaped structure 41-1 and
41-4, but the steel wire rope or chain needs to be longer, as shown
in FIG. 12.
[0058] When a longer pole-shaped structure is used to replace two
adjacent pole-shaped structures between two work platforms, in case
of the combined pattern of pole-shaped structure, one end of the
steel wire rope 34-1 and 34-2 turns around a fixed pulley on the
central column 121 respectively in opposite direction and runs
downwards and then turns around a deflection pulley to be connected
with the wire drum, and the other end thereof is fixed on the
particular position of the work platform or the circular or
semi-circular pole-shaped structure, as shown in FIG. 333.
[0059] The working movement manner of the inventive equipment using
the two-central-column type framework is in accordance with that of
the inventive equipment using the four-column type framework.
[0060] To increase the lifting capacity, the method of synchronous
lifting for multiple parallel platforms can be applied, as shown in
FIG. 13-2. For example, in bridge construction, multiple parallel
platforms can increase the width of the bridge deck and the bearing
capacity of the bridge.
[0061] In addition, the wireless transmitting and receiving device
is mounted respectively on the front and rear ends of the upper and
lower work platforms during the movement of the upper and lower
work platforms, as shown in FIG. 7. When an obstacle is identified
within the predetermined distance, such as 1.5 m, a signal is sent
out to stop the running equipment, thus preventing the work
platform from colliding with the surrounding moving or stationary
obstacles or persons during the running of the equipment.
[0062] When the blocking device is used, the horizontally arranged
parking lock is lifted up with the handle, and the spring button 95
embedded in the inwardly bent angle steel automatically pops up and
locks when encountering the hole 91, as shown in FIGS. 9-3 and 9-4;
when the blocking device is to be opened, the spring button is
pressed down with a finger, and under the effect of the gravity,
the blocking device automatically slides down to a horizontal
position, as shown in FIG. 9-2.
[0063] Wheel 7 can be optional on the four corners of the base of
the framework of the inventive equipment, and the inventive
equipment can be moved to anywhere when it is equipped with a car
chassis, or can be towed by a truck to anywhere to optimize the
allocation of equipment resources, as shown in FIG. 8. Pickets 8
can be optional inside the four columns, for fixing on the loose
and soft foundation (such as outdoor sand ground), as shown in FIG.
1 and FIG. 8. For the standard hard land, it is only necessary to
connect the base with the ground by anchor bolts.
[0064] Finally, the touch and stop device 10 can ensure that the
equipment will stop emergently when the side of the work platform
with the touch and stop device touches the obstacle during
operation.
[0065] The inventive equipment can load and unload different loads,
and can replace some functions of load lift and crane under
appropriate conditions. Further, a single or more equipment can be
operated to rapidly build a bridge for vehicles and pedestrians,
which can also provide an access with two upper and lower channels,
and this is very useful in some emergencies or in case of natural
disasters. Hereinafter, the application of the inventive equipment
as a bridge composite structure will be specifically explained:
[0066] When operating one or more inventive equipment, the work
platform of every equipment is stayed at or closed to the same
horizontal position (a certain height difference between the work
platforms is permitted) and all work platforms are connected from
the front to the end, and slopes are arranged at both ends, so that
a bridge can be built quickly. Of course, the inventive equipment
can also be combined with the existing bridge structure to build a
new bridge, as shown in FIGS. 13 and 13-1. It is not necessary for
the two work platforms of each equipment or the platforms of
multiple equipments to stay at an absolutely same horizontal level,
and a certain height difference is permitted, as show in FIG. 13.
Thus, an appropriate sloping can be formed, and rubber cushion
layers and slopes can be arranged at joints to reduce the bumping
from road surface. In this case, it is very convenient to dock the
platforms, namely dock the bridge deck structures without strict
requirements. In the traditional methods of docking the deck of
bridge, the weight of the section of bridge is concentrated at the
column in the junction, and the bridge machine or crane is needed
to lift the heavy structure of bridge to the precise position.
While using the work platforms of this equipment to build one
bridge, it is not necessary to set the column to support the weight
of bridge structure at the junction of the structure of bridge. It
reduces the difficulty of building a bridge and saves time. The
reason is that the whole weight of the structure of bridge is
supported by the wire rope or chain 34, the hinged pole-shaped
structure, and the column of the framework. With the help of driven
and driving aided device, it regulates the force balance of two
work platforms of the equipment. Of course, increasing the number
of columns to support the weight of the bridge at the junction of
the structure of the bridge can improve the capacity of the overall
force for the structure of the bridge.
[0067] Also, the work platform and column can be designed with
different heights according to the changes of topography, as shown
in FIG. 13.
[0068] In a manner of synchronous lifting with multiple parallel
work platforms, as shown in FIG. 13-2, for example, in bridge
construction, multiple parallel work platforms are arranged to
increase the width of the bridge deck and the bearing capacity of
the bridge.
[0069] In addition, according to the increase of actual load of the
work platform, and referring to the arrangement of the stayed-cable
bridge or suspension bridge in construction engineering, the number
of the steel wire ropes or chains connected between the work
platforms and the columns can be increased, and the number of the
pole-shaped structures can be increased, and the number of
crossbeams 24 connected between two columns can be increased when
necessary, as shown in FIG. 14. According to the amount of the
actual load of the work platform, the pole-shaped structures can
also have many stressed structure forms in construction engineering
or mechanical engineering, such as reinforcing bar and truss
structure. The shadowed areas in FIG. 14 represent the filling and
cushion layers arranged for a flat surface of the road of the lower
channel.
[0070] The work platform can be made into a concave-shape or
bending-surface platform according to the actual need. Such a work
platform has special usage in some aspects, for example, it will be
very helpful to bridging, as shown in FIG. 15; wherein 25 refers to
the slope and the extensible joint device.
[0071] When dismantling the bridge, the equipment can be operated
to automatically "shrink" into the upper and lower platforms
automatically. Then it will be towed away by the construction
party. If a certain section of the work platform fails or is
damaged, a new equipment can replace such section of equipment, or
the equipment can be controlled to lower the failure or damage
section of platform for maintenance and replacement at low
altitudes or near the level of ground or sea. Such a method reduces
the difficulty in maintenance and saves maintenance time.
[0072] It should be noted that in order to meet the requirements
for lifting in some circumstances, the platform can be simplified
as a crossbeam shown in FIGS. 225 and 226; or it is even possible
to directly use the hook or lifting ring linked with the
pole-shaped structure for lifting, as shown in FIGS. 227 and 228.
When a container is lifted, the pole-shaped structure of the
equipment can be directly placed at the two sides of the container,
herein the platform is simplified as the crossbeam, and then can be
connected with the top corner parts or bottom corner parts of the
container by pins through the clamps and riggings of the crossbeam;
or the bottom of the load is directly upheld by a net-shaped part
hung and connected to two crossbeams. FIG. 225 illustrates a
lifting along the direction of the length of the container.
Alternatively, it is possible for lifting along the direction of
the width of the container, as shown in FIGS. 226 and 229.
[0073] If the requirement of horizontal stability for lifting a
load is not high, which means swaying back and forth of the load is
permitted, it is possible to use one or two pole-shaped structures
in parallel as the lifting mechanism for lifting the load, and
herein the work platform is simplified as the hook, lifting ring or
special-purpose fixture and riggings, as shown in FIGS. 228 and
229. In FIG. 229, only one pole-shaped structure is used and the
work platform is simplified as a special-purpose fixture for
container, and the container can be rotated at an angle close to
360 degree in the vertical plane. FIG. 230 illustrates how two
pole-shaped structures in parallel are used. The work platform is
simplified as a special-purpose fixture for container and the
container can be rotated at an angle close to 360 degree in the
vertical plane.
[0074] The above describes the specific cases of the implementation
of the patent. The patent is not limited to the above icon or
description of the specific structure, but also covers all changes
of the essence spirit and scope from the patent.
* * * * *