U.S. patent application number 15/308109 was filed with the patent office on 2017-08-10 for compression connection device for pipe.
The applicant listed for this patent is Seowon Technology Co., Ltd.. Invention is credited to Kyung-Ho CHO.
Application Number | 20170225218 15/308109 |
Document ID | / |
Family ID | 54833754 |
Filed Date | 2017-08-10 |
United States Patent
Application |
20170225218 |
Kind Code |
A1 |
CHO; Kyung-Ho |
August 10, 2017 |
COMPRESSION CONNECTION DEVICE FOR PIPE
Abstract
Disclosed is a compression fastening device for a pipe. The
compression fastening device for a pipe comprises: a tightening
coupling part which has connection members connected in a manner of
surrounding the circumference of a connection part of a pipe body,
and which is formed so as to be capable of generating a tightening
force for compression fastening the circumference of the connection
part of the pipe body while operating in a state where the gap of
both ends of the tightening coupling part becomes narrowed by a
tightening tool; a tightening compression part which has a
flow-type compression member and a fixed-type compression member
formed so as to be capable of compressing the circumference of the
connection part of the pipe body while being pressed in a contact
state by the tightening force of the tightening coupling part; and
a contact guide part which is formed so as to be capable of guiding
the contact state between the tightening coupling part and the
tightening compression part so that the gap of both ends of the
tightening coupling part can be manipulated by the tightening tool
in a set state where the gap of both ends has been narrowed.
Inventors: |
CHO; Kyung-Ho; (Seoul,
KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Seowon Technology Co., Ltd. |
Sejong-si |
|
KR |
|
|
Family ID: |
54833754 |
Appl. No.: |
15/308109 |
Filed: |
April 29, 2015 |
PCT Filed: |
April 29, 2015 |
PCT NO: |
PCT/KR2015/004314 |
371 Date: |
March 3, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F16L 23/04 20130101;
B25B 27/10 20130101; F16L 21/06 20130101; B21D 39/046 20130101 |
International
Class: |
B21D 39/04 20060101
B21D039/04 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 9, 2014 |
KR |
10-2014-0069632 |
Claims
1. A compression connection device for pipes, comprising: fastening
connection units configured to comprise connectors connected to
surround a circumference of joint parts of tubular bodies and to
generate a fastening force for compressing and connecting the
circumference of the joint parts of the tubular bodies while
operating to narrow an interval between both ends of the fastening
connection units by a fastening tool; a fastening compression unit
configured to comprise a movable type compression unit and a fixed
type compression unit disposed on a side of the fastening
connection units in a state in which the fastening compression unit
is capable of a compression operation in a direction in which a
diameter of the circumference of the joint parts of the tubular
bodies is narrowed while both ends of the fastening connection
units are pushed in a contact state by the fastening force when the
fastening connection units are manipulated to narrow the interval
between both ends of the fastening connection units; contact guide
units each configured to comprise a contact guide surface slantly
formed on a side of the connector of the fastening connection unit
in such a way as to guide the movable type compression unit of the
fastening compression unit to enable the compression operation and
an elastic member formed along the contact guide surface in such a
way as to flexibly push the movable type compression unit.
2. The compression connection device of claim 1, wherein: the
fastening connection units have latching portions at ends of the
fastening connection units on both sides, and each of the latching
portions has a groove or protrusion form into which the fastening
tool is latched in such a way as to be capable of the fastening
operation.
3. The compression connection device of claim 1, wherein the
fastening connection units are connected in such a way as to narrow
an interval between the connectors.
4. The compression connection device of claim 1, wherein the
movable type compression unit and the fixed type compression unit
are disposed on the side of the fastening connection units in the
state capable of the compression operation in the direction in
which the diameter of the circumference of the joint parts of the
tubular bodies is narrowed while the interval between the ends of
the fastening connection units on both sides are manipulated to be
narrowed.
5. The compression connection device of claim 4, wherein: the
movable type compression unit are disposed to correspond to the
ends of the fastening connection units on both sides, and the fixed
type compression units are arranged in a direction in which the
movable type compression units are connected.
6. The compression connection device of claim 5, wherein the
movable type compression unit is set to be capable of the slide
operation along the circumference of the joint parts of the tubular
bodies on the side of the connectors of the ends of the fastening
connection units on both sides.
7. The compression connection device of claim 5, wherein the fixed
type compression unit is fixed to the connector between the ends of
the fastening connection units on both sides and is set to not move
along the circumference of is the joint parts of the tubular
bodies.
8. The compression connection device of claim 1, wherein the
contact guide units comprises a contact guide unit formed on the
side of the connector of the fastening connection unit
corresponding to the movable type compression unit and an elastic
member formed to elastically push the movable type compression unit
along the contact guide unit.
9. The compression connection device of claim 1, wherein the
contact guide surface is slantly formed from a first side of the
contact surface of the connector in which the movable type
compression unit is placed to a second side of the contact
surface.
10. The compression connection device of claim 1, wherein the
elastic member is set to generate an elastic force in a state in
which the movable type compression unit moves along the contact
guide surface and is located off the end of the fastening
connection unit.
11. The compression connection device of claim 1, wherein: the
compression connection device for pipes further comprises a holder
unit corresponding to the fastening connection unit, and the holder
unit comprises a guide holder disposed at an end of the fastening
connection unit on a first side and configured to have a guide hole
formed in the guide holder and a latching unit disposed at an end
of the fastening connection unit on a second side in a state in
which the latching unit is inserted into the guide hole of the
guide holder in such a way as to be latched into the guide hole.
Description
TECHNICAL FIELD
[0001] The present invention relates to a compression connection
device for pipes.
BACKGROUND ART
[0002] A working method for performing piping by connecting tubular
bodies includes a compression connection (or connection) method for
conveniently and rapidly connecting the joint parts of tubular
bodies using a fastening compression force.
[0003] A compression connection device is used in the compression
connection work. The compression connection device is basically
configured to generate a fastening force while it is manipulated in
the state in which the interval between both ends of the
compression connection device is narrowed by a separate fastening
tool (or a hydraulic pressure device or transmission device) so
that a fastening force is generated in the direction in which the
diameter of a pipe is retracted in the state in which the
circumference of the joint parts of tubular bodies have been
surrounded.
[0004] A compression connection device used in such a compression
connection work includes Korean Patent No. 10-0762293 entitled
"Apparatus for Press-Connecting Pipes."
[0005] However, the apparatus for press-connecting pipes of Korean
Patent No 10-0762293 has a drawback in that a manipulation and
compatibility corresponding to a fastening tool are poor because it
does not have a structure integrated therewith, which is easily
manipulated by the fastening tool by narrowing the interval between
two reference blocks as much as possible when the joint parts of
pipes are set in the state in which they are surrounded in such a
way as to be compressed and connected.
[0006] In particular, if compatibility corresponding to the
fastening tool is not secured, it is inconvenient to additionally
use a fastening tool having a size and structure capable of
accommodating a large interval between the two reference blocks
when the large interval is generated, for example.
DISCLOSURE
Technical Problem
[0007] The present invention has been made in an effort to provide
a compression connection device for pipes, which is formed to have
a structure capable of further improving a manipulation and
compatibility corresponding to a fastening tool when a compression
connection work for the pipes of tubular bodies is performed.
Technical Solution
[0008] An example embodiment of the present invention provides a
compression connection device for pipes includes:
[0009] fastening connection units configured to include connectors
connected to surround the circumference of the joint parts of
tubular bodies and to generate a fastening force for compressing
and connecting the circumference of the joint parts of the tubular
bodies while operating to narrow an interval between both ends of
the fastening connection units by a fastening tool;
[0010] fastening compression units configured to include movable
type compression units and fixed type compression units formed to
compress the circumference of the joint parts of the tubular bodies
while being pushed by the fastening force of the fastening
connection units in a contact state;
[0011] contact guide units formed to guide the contact state
between the fastening connection units and the fastening
compression units so that the fastening connection units are
manipulated by the fastening tool in a setting state in which the
interval between both ends of the fastening connection units has
been narrowed.
Advantageous Effects
[0012] In such an embodiment of the present invention, the joint
parts of tubular bodies can be simply connected in a compression
connection state in such a way as to manipulate a separate
fastening tool so that the interval between both ends of the
fastening connection units is narrowed in the state in which the
fastening connection units have been set to surround the
circumference of the joint parts of the tubular bodies and to push
the fastening compression units (pressing devices) by a contact
attributable to a fastening force at this time.
[0013] Furthermore, an embodiment of the present invention can
provide a structure that can be smoothly manipulated by a fastening
tool in the state in which the interval between both ends of the
fastening connection units has been narrowed as much as possible
because it includes the contact guide units.
[0014] In particular, in accordance with the structure and action
of such a contact guide units, for example, when a compression
connection work for the joint parts of tubular bodies having a
large diameter is performed, a manipulation and compatibility
corresponding to a fastening tool can be further improved because
the fastening tool can be manipulated with it smoothly set by
narrowing the interval between both ends of the fastening
connection units.
DESCRIPTION OF THE DRAWINGS
[0015] FIG. I is a diagram schematically showing the entire
structure of a compression connection device for pipes according to
an exemplary embodiment of the present invention.
[0016] FIG. 2 is the compression connection device for pipes
according to the exemplary embodiment of the present invention in
an open state.
[0017] FIG. 3 is the compression connection device for pipes
according to the exemplary embodiment of the present invention in a
fastened state.
[0018] FIG. 4 shows an installation state of an elastic member
according to the exemplary embodiment of the present invention in a
fastened state.
[0019] FIG. 5 shows a formation structure of a guide hole according
to the exemplary embodiment of the present invention in a fastened
state.
[0020] FIG. 6 shows a configuration of a latching unit according to
the exemplary embodiment of the present invention in a fastened
state.
[0021] FIG. 7 shows an operation state of the latching unit
according to the exemplary embodiment of the present invention in a
fastened state.
[0022] FIG. 8 shows an operation state in a different direction of
the latching unit according to the exemplary embodiment of the
present invention.
MODE FOR INVENTION
[0023] Hereinafter, preferred exemplary embodiments of the present
invention are described with reference to the accompanying
drawings.
[0024] Exemplary embodiments of the present invention are described
with the range in which those skilled in the art may practice the
present invention.
[0025] Accordingly, exemplary embodiments of the present invention
may be modified in various other forms and thus the claims of the
present invention are not limited by the following exemplary
embodiments.
[0026] FIG. 1 is a diagram schematically showing the entire
structure of a compression connection device for pipes according to
an exemplary embodiment of the present invention, and FIGS. 2 to 8
are diagrams illustrating a detailed structure and action of the
compression connection device for pipes according to an exemplary
embodiment of the present invention. Reference numeral 2 denotes a
fastening connection unit, and reference numeral 4 denotes a
fastening compression unit,
[0027] Referring to FIGS. 1 to 4, the fastening connection units 2
and the fastening compression units 4 may be formed to have a chain
type connection structure, for example, so that a compression
connection operation is performed by a fastening manipulation that
narrows the interval between both ends of the fastening connection
units 2 in the state in which the fastening connection units 2 and
the fastening compression units 4 have surrounded the circumference
of the joint parts P1 of the tubular bodies P.
[0028] The fastening connection unit 2 includes a plurality of
connectors A. The connectors A are formed to have a connection
structure which may form a circle so that they correspond to the
circumference of the joint parts P1 of the tubular bodies P.
[0029] That is, as shown in FIGS. 1 and 2, the fastening connection
unit 2 may be set to have a connection structure capable of being
manipulated, for example, in the state in which the ends of three
connectors A are connected by hinge coupling and may surround the
circumference of the joint parts P1 of the tubular bodies P or may
be separated from each other while rotating around a hinge coupling
point.
[0030] The connectors A include contact surfaces A1 respectively,
and are disposed in a connection state in which they can be pushed
by the contact forces of the contact surfaces A1 in such a way as
to enable the compression operation of the fastening compression
units 4 to be described later when a fastening operation is
performed.
[0031] Latching portions A2 are formed at the ends of the fastening
connection units 2 on both sides so that the fastening connection
units 2 may be fastened and manipulated in the state in which the
interval between the ends of the fastening connection units 2 on
both sides is narrowed by a separate fastening tool M, as shown in
FIG. 1.
[0032] The latching portion A2 may be provided in a groove portion
(or protrusion) form so that the fastening tool M can be set in the
state in which it has been latched in the latching portion A2 in
such a way as to be fastened and manipulated, for example,
[0033] Furthermore, the fastening tool M is formed to have a
driving structure capable of being manipulated in the state in
which it generates motive power by common hydraulic pressure or a
common transmission method as well known in the art and capable of
narrowing the interval between both ends the latching portions) of
the fastening connection units 2.
[0034] As shown in FIG. 3, the fastening connection units 2 may be
driven to generate a fastening force for press-connecting the
circumference of the joint parts P1 of the tubular bodies P while
being manipulated in the state in which the interval between the
latching portions A2 at both ends of the fastening connection units
2 is narrowed by the fastening tool M in the state in which the
fastening connection units 2 have been disposed to surround the
circumference of the joint parts P1 of the tubular bodies P.
[0035] The fastening compression units 4 are formed to compress the
circumference of the joint parts P1 of the tubular bodies P while
being pushed by the contact force of the connectors A when the
fastening connection units 2 perform the fastening operation.
[0036] The fastening compression units 4 include a plurality of
compression units. When the fastening compression units 4 are
installed to correspond to the fastening connection units 2, they
may be installed to have a movable type compression structure
capable of being moved along the circumference of the joint parts
P1 of the tubular bodies P and a non-movable type compression
structure.
[0037] For example, as shown in FIGS. 1 and 2, the fastening
compression unit 4 may include movable type compression units B1
disposed to correspond to the ends of the fastening connection
units 2 on both sides and fixed type compression units B2 disposed
between both ends of the fastening connection units 2.
[0038] The movable type compression units B1 may be provided in the
state in which they are coupled to the connectors A at the ends of
the fastening connection units 2 on both sides by the coupling of
slot grooves C1 and pins C2 and may slide along the circumference
of the joint parts P1 of the tubular bodies P. In particular, when
the movable type compression units B1 are coupled by the pins C2 on
the side of the connectors A at the ends of the fastening
connection units 2 on both sides as shown in FIG. 1, the movable
type compression units B1 may be installed to rotate around the
pins C2, as shown in FIG. 4, in addition to a sliding operation in
the state in which the movable type compression units B1 is guided
in the elongation direction of the slot groove C1. Accordingly, in
such a structure, for example, when the movable type compression
units B1 are pushed by the connectors A upon fastening and
manipulation of the fastening connection units 2, the sliding
operation can be performed to correspond to the circumference of
the joint parts P1 of the tubular bodies P and a compression
operation can also be performed in the state in which the push
compression posture of the movable type compression units B1 can be
properly changed while the movable type compression units B1 rotate
around the coupling points of the pins C2. Accordingly, a problem
(e.g., a phenomenon in which the joint parts of tubular bodies are
stabbed) which may occur due to an unstable push posture of the
movable type compression units B1 when the compression operation is
performed can be actively improved.
[0039] The fixed type compression units B2 may be provided in the
state in which they are fixed to the connectors A between the ends
of the fastening connection units 2 on both sides by a fastening
member, such as bolts or pins, so that they do not move along the
circumference of the joint parts P1 of the tubular bodies P.
[0040] The movable type compression units B1 and the fixed type
compression units B2 include compression surfaces B3. When the
fastening connection units 2 are manipulated in the fastening
state, the movable type compression units B1 and the fixed type
compression units B2 are formed in an array in which the
compression surfaces B3 may be subjected to a compression operation
in the state in which they form a circular connection shape
corresponding to the circumference of the joint parts P1 of the
tubular bodies P.
[0041] That is, as shown in FIG. 3, when the fastening connection
units 2 are fastened and manipulated, the fastening compression
units 4 may operate to enable the compression operation in the
direction in which the diameter of the joint part P1 of the tubular
body P is reduced by the compression surfaces B3 while the movable
type compression units B1 and the fixed type compression units B2
are pushed by the contact surfaces A1 of the connectors A.
[0042] The compression connection device for pipes according to an
exemplary embodiment of the present invention includes contact
guide units 6.
[0043] The contact guide units 6 are formed to have a structure
capable of guiding the contact state of the fastening connection
unit 2 and the fastening compression unit 4.
[0044] In particular, when the fastening connection units 2 are
disposed to surround the circumference of the joint parts P1 of the
tubular bodies P, the contact guide units 6 are formed to guide the
fastening connection unit 2 and the fastening compression unit 4 in
the contact state in which the interval between both ends (i.e.,
the latching portions) of the fastening connection units 2 has been
further narrowed.
[0045] Referring back to FIGS. 1 and 2, each of the contact guide
unit 6 includes a contact guide surface D1 formed on the side of
the fastening connection unit 2 corresponding to the movable type
compression unit B1 of the fastening compression unit 4 and an
elastic member D2 formed to elastically push the movable type
compression unit B1 along the contact guide surface D1.
[0046] The contact guide surface D1 is formed so that it is
contacted in the state in which part of the movable type
compression unit B1 has deviated from the contact surface A1 of the
connector A disposed at the end of the fastening connection unit
2.
[0047] The contact guide surface D1 may be formed to be extended
toward the end of the fastening connection unit 2 in the state in
which it has been inclined from one side of the contact surface A1
of the fastening connector A corresponding to the movable type
compression unit B1 to the inside of the contact surface A1, as
shown in FIG. 4.
[0048] That is, the contact guide surface D1 is formed to have a
contact guide area that has slantly deviated to the outside when
the contact surfaces A1 of the fastening connection unit 2 are
disposed to form a circle corresponding to the circumference of the
joint parts P1 of the tubular bodies P, as shown in FIG. 2.
[0049] Furthermore, as shown in FIG. 4, the opposite side of the
compression surface B3 is inclined to correspond to the contact
guide surface D1 so that the contact guide of the movable type
compression unit B1 is performed by the contact guide surface
D1.
[0050] As shown in FIG. 4, the elastic member D2 may be installed
between the movable type compression units B1 and the fixed type
compression units B2.
[0051] For example, a compressive coil spring may be used as the
elastic member D2. The elastic member D2 has one end supported by
the movable type fastening compression unit B1 and the other end
disposed to be supported by the fixed type compression unit B2.
Accordingly, the movable type compression unit B1 moves along the
contact guide surface D1, and is set so that the distance between
the movable type compression unit B1 and the fixed type compression
unit B2 is maintained to be flexibly widened.
[0052] For example, as shown in FIG. 2, when the fastening
connection units 2 are set to be manipulated in such a way as to
compress and connect the joint parts P1 of the tubular bodies P,
the contact guide units 6 can provide a contact guide environment
in which the movable type compression units B1 flexibly moves along
the contact guide surface D1 and part thereof is externally located
off the ends of the fastening connection units 2 on both sides.
[0053] Accordingly, the fastening connection units 2 can be set in
the state in which the interval between the ends of the fastening
connection units 2 on both sides has been further narrowed by the
movement of the movable type compression units B1.
[0054] Furthermore, when the ends of the fastening connection units
2 on both sides are fastened and manipulated as shown in FIG. 6,
the movable type compression units B1 move to the opposite sides
along the contact guide surface D1 and are then pushed in the state
in which they form a circle corresponding to the circumference of
the joint parts P1 of the tubular bodies P along with the fixed
type compression units B2.
[0055] In accordance with the structure and action of such a
contact guide unit 6, particularly, the fastening connection units
2 can be set to be manipulated so that the ends (i.e., the latching
portions) of the fastening connection units 2 are compressed and
connected in the state in which the interval between the ends of
the fastening connection units 2 has been narrowed as much as
possible. Accordingly, for example, tool manipulation convenience
and compatibility can be secured because a compression connection
work for large-sized tubular bodies P can be smoothly performed by
the fastening tool M having a size which is used to compress and
connect tubular bodies P having a small or middle diameter.
[0056] The compression connection device for pipes according to an
exemplary embodiment of the present invention may further include a
holder unit 8, as shown in FIGS. 5 to 8.
[0057] The holder unit 8 is formed to have a structure capable of
holding the ends of the fastening connection units 2 on both sides
in the setting state when the fastening connection units 2 are set
to surround the circumference of the joint parts P1 of the tubular
bodies P.
[0058] Referring to FIGS. 5 to 8, the holder unit 8 may include a
guide holder E disposed at the end of the fastening connection unit
2 on one side and configured to have a guide hole E1 formed therein
and a latching unit F disposed at the end of the fastening
connection unit 2 on the other side in the state in which the
latching unit F can be latched into the guide hole E1 of the guide
holder E.
[0059] For example, the guide holder E may have one end connected
and fixed to the side of the end of the fastening connection unit 2
by a pin or bolt and may have the other end set to be extended
toward the opposite side.
[0060] As shown in FIG. 5, the guide hole E1 may be formed in a
slit hole type which is inwardly extended from an end on the
non-fixing side of the guide holder E to an end on the fixing side
thereof and has an opening portion.
[0061] Furthermore, a plurality of latching grooves E2 is formed
within the guide hole E1 at a specific interval in the elongation
direction of the guide hole E1 in the state in which the latching
unit F may be detachably latched into the latching grooves E2.
[0062] If the latching grooves E2 are formed at a specific interval
as described above, the ends of the fastening connection units 2 on
both sides can be fastened in the state in which the interval
between the ends of the fastening connection units 2 has been
properly adjusted along the diameter of the joint parts P1 of the
tubular bodies P in such a way as to correspond to the diameter of
the joint parts P1.
[0063] The latching unit F is disposed at the end of the fastening
connection unit 2 on the other side in the state in which it
corresponds to the guide hole E1 of the guide holder E, and is
formed to have a latching structure capable of latching and release
on the side of the guide hole E1.
[0064] As shown in FIG. 6, the latching unit F includes a latching
protrusion F1. The latching unit F may be installed on the side of
the end of the fastening connection unit 2 in such a way as to move
in the same direction as that in FIG. 6, and may be formed in such
a way as to be manipulated so that the latching protrusion F1 is
inserted into the latching groove E2 of the guide hole E1 in the
latching state or separated therefrom.
[0065] That is, when the latching unit F is manipulated in the same
direction as that in FIG. 7, the holder unit 8 is released because
the latching unit F may move in the elongation direction of the
guide hole E1 in the state in which it has been inserted into the
guide hole E1 of the guide holder E.
[0066] Furthermore, when the latching unit F is manipulated in the
same direction as that in FIG. 8, the holder unit 8 becomes the
latching state because the latching protrusion F1 of the latching
unit F is latched and inserted into any one of the latching grooves
E2 of the guide hole E1. Accordingly, the latching unit F can hold
the ends of the fastening connection units 2 on both sides in the
connection state.
[0067] In accordance with the structure and action of such a holder
unit 8, for example, when the fastening connection units 2 are set
to surround circumference of the joint parts P1 of the tubular
bodies P for the purpose of a compression work, the setting state
can be prevented from being abnormally changed or released because
the holder unit 8 can hold both ends of the fastening connection
units 2 in a stable state.
[0068] Accordingly, the compression connection device for pipes
according to the exemplary embodiment of the present invention can
compress and connect the joint parts P1 of the tubular bodies P by
the compression force of the fastening compression units 4 by
manipulating the fastening connection units 2 in the direction in
which the interval between the ends of the fastening connection
units 2 on both sides is narrowed using the fastening tool M in the
state in which the fastening connection units 2 are set to surround
the circumference of the joint parts P1 of the tubular bodies
P.
[0069] In particular, an exemplary embodiment of the present
invention can provide a connection structure capable of further
improving a manipulation convenience and compatibility
corresponding to the fastening tool M because it includes the
contact guide units 6 capable of setting the fastening connection
units 2 in the state in which the interval between both ends of
fastening connection units 2 has been narrowed as much as possible
when the fastening connection units 2 are set on the side of the
joint parts P of the tubular bodies P.
* * * * *