U.S. patent application number 11/909244 was filed with the patent office on 2009-12-31 for manhole cover for preventing inflow of bad smell and harmful insect.
Invention is credited to Youn Ho Choi.
Application Number | 20090324329 11/909244 |
Document ID | / |
Family ID | 37180492 |
Filed Date | 2009-12-31 |
United States Patent
Application |
20090324329 |
Kind Code |
A1 |
Choi; Youn Ho |
December 31, 2009 |
Manhole Cover for Preventing Inflow of Bad Smell and Harmful
Insect
Abstract
A manhole cover for preventing the inflow of a bad smell and a
harmful insect is provided. More particularly, the manhole cover
includes a manhole top plate that has a plurality of drainage holes
and a display part; a drainage guide plate that is integrally
formed in a bottom part of the manhole top plate; a gate that is
provided in a front end exit of the drainage guide plate and that
is closed by a weight; and walls that are vertically and integrally
formed in four edges of the manhole top plate. The display part,
which is provided in one side of the manhole top plate can perform
a specific display such as a trademark, a firm name, a logo, a
slogan. The gate can be fully opened or closed within a space part
by forming the space part in a lower part of the display part.
Inventors: |
Choi; Youn Ho; (Daegu,
KR) |
Correspondence
Address: |
BOYLE FREDRICKSON S.C.
840 North Plankinton Avenue
MILWAUKEE
WI
53203
US
|
Family ID: |
37180492 |
Appl. No.: |
11/909244 |
Filed: |
May 23, 2006 |
PCT Filed: |
May 23, 2006 |
PCT NO: |
PCT/KR06/01943 |
371 Date: |
September 20, 2007 |
Current U.S.
Class: |
404/26 |
Current CPC
Class: |
E02D 29/1454 20130101;
E02D 29/14 20130101 |
Class at
Publication: |
404/26 |
International
Class: |
E02D 29/14 20060101
E02D029/14 |
Foreign Application Data
Date |
Code |
Application Number |
May 26, 2005 |
KR |
10-2005-0045368 |
Claims
1. A manhole cover for preventing the inflow of a bad smell and a
harmful insect comprising: a manhole top plate that has a plurality
of drainage holes; a drainage guide plate that is integrally formed
in a bottom part of the manhole top plate or that is integrally
formed by assembling after separately formed and that have an
one-way exit; a gate that comes in close contact with an exit
inclined surface of the drainage guide plate and that opens and
closes about hinges as hinges of both sides of the manhole top part
are mounted in both sides of a bottom surface of the manhole top
plate; a display part for showing various displays such as a firm
name, a trademark, a phone number, or so on by extending a side of
the manhole top part in which one side, i.e., the gate of the
manhole top plate is provided; a space part for fully stably
opening the gate in a lower part of the display part; and walls
that are vertically formed with an equal height in four edges of
the manhole top plate wherein the manhole cover is made of
synthetic resin such as engineering plastics, and wherein hooking
protruded parts are provided in a predetermined position of both
sides of the manhole cover and hooking recessed parts are provided
in a position corresponding to the hooking protruded parts in a
manhole frame.
Description
TECHNICAL FIELD
[0001] The present invention relates to a manhole cover that can
prevent the inflow of a bad smell and a harmful insect.
[0002] More particularly, the present invention is a supplement of
Korean Utility Model Registration No. 0356787, which is already
filed by the present applicant. A manhole cover of the present
invention is made of synthetic resin such as engineering plastics,
ductile cast iron (FCD), cast iron (FC), etc. and includes a
display part for showing various displays such as a firm name, a
trademark, a slogan, a logo in a side of a manhole top plate by an
indentor or a producer, walls that are vertically formed in four
edges of the manhole top plate, and a space part that is provided
in a lower part of the display part to smoothly operate a gate.
BACKGROUND ART
[0003] As is well-known, a conventional manhole cover for
preventing the inflow of a bad smell and a harmful insect is
generally separately composed of a manhole top plate (manhole
cover), a drainage guide plate, and a gate, and the manhole top
plate is made of cast iron, and the drainage guide plate and the
gate are made of sheet zinc, etc.
[0004] When assembling, the manhole top part is provided in a jaw
part of a frame that is provided around a top hole of the manhole
in a state where the gate is assembled in the drainage guide plate
and a manhole cover is provided in the top part of the manhole.
[0005] However, as described above, the conventional manhole cover
for preventing the inflow of a bad smell and a harmful insect is
separately composed of a manhole cover, a drainage guide plate, and
a gate, whereby an excessive manufacturing cost is required and an
installation process is troublesome and inconvenient. The largest
problem is that as various foreign substances such as sands,
garbage, leaves, and branches are introduced at an inflow process
of dirty water, rainwater, or so on, they are accumulated in the
drainage guide plate. Accordingly, the gate is not smoothly
operated and thus a bad smell and a harmful insect are
introduced.
[0006] Furthermore, as described above, if foreign substances are
accumulated, the flow of dirty water or rainwater is obstructed.
Accordingly, if heavy rain pours, drainage is not smoothly
performed and flowing backward is generated, whereby management of
the manhole is difficult and it is not good from a point of a fine
view.
[0007] Therefore, the present applicant has developed a manhole
cover for solving the above-mentioned problems and it is registered
as Korean Utility Model Registration No. 0356787.
[0008] However, the registered manhole cover does not have a
display part for showing various displays such as a firm name, a
trademark, a slogan and it is not suitable for a manhole in which a
depth thereof is not deep as an edge of the manhole top plate is
formed to provide in a manhole frame.
DISCLOSURE
Technical Problem
[0009] Accordingly, an object of the present invention is to solve
at least the problems and disadvantages of the background art.
[0010] An object of the present invention is to provide a manhole
cover that can prevent the inflow of a bad smell and a harmful
insect.
Technical Solution
[0011] According to an aspect of the present invention, there is
provided a manhole cover that is made of synthetic resin such as
engineering plastic, ductile cast iron, cast iron and in which a
manhole top plate and a drainage guide plate are integrally formed.
As a size of the drainage guide plate is formed to be larger than
an entire size of a plurality of drainage holes formed in the
manhole top plate, drainage is very smoothly performed. As a gate
that is closed by a weight while opening by a water pressure and
flowing water is provided at an end of the drainage guide plate,
walls are vertically formed in four edges of the manhole top plate.
A display part for showing various displays such as a firm name, a
trademark, or a slogan is provided in one side of the manhole top
plate. A space part is provided in a lower part of the display
part. The manhole cover for preventing the inflow of a bad smell
and a harmful insect by stably opening and closing the gate within
the space part is provided.
Advantageous Effects
[0012] As described above, according to the present invention, as a
manhole cover is made with injection molding of synthetic resin, it
is easily manufactured and easily handled due to light weight and
it may be manufactured with various colors and provides a fine view
to a city. Furthermore, as a manhole top plate 12 and a drainage
guide 13 are integrally formed, they are conveniently constructed
and a gate 15 can be always stably closed, so that the inflow of a
bad smell and a harmful insect can be prevented. Furthermore, as
the drainage guide 13 is inclined, drainage is performed very
smoothly. Therefore, the present invention is very hygienic and
useful.
DESCRIPTION OF DRAWINGS
[0013] The invention will be described in detail with reference to
the following drawings in which like numerals refer to like
elements.
[0014] FIG. 1 is a perspective view illustrating an embodiment of
the present invention; and
[0015] FIG. 2 is an exploded perspective view illustrating an
embodiment of the present invention;
[0016] FIG. 3 is a longitudinal cross-sectional view illustrating
an embodiment of the present invention;
[0017] FIG. 4 is a longitudinal cross-sectional view illustrating
another embodiment of the present invention; and
[0018] FIG. 5 is a longitudinal cross-sectional view illustrating
still another embodiment of the present invention.
BEST MODE
[0019] Hereinafter, exemplary embodiments according to the present
invention will be described in detail with reference to the
accompanying drawings.
[0020] A manhole cover for preventing the inflow of a bad smell and
a harmful insect is constructed as follows.
[0021] As described in FIGS. 1 to 3, a manhole cover 1 of the
present invention includes a manhole top plate 12 that has a
plurality of drainage holes 11; a drainage guide plate 13 that is
integrally formed in a bottom part of the manhole top plate 12 or
that is integrally formed by assembling after separately formed and
that have an one-way exit; hinges 19 for mounting in both sides of
a bottom surface of the manhole top plate 12 in both sides of the
top part; and a gate 15 that is provided to open and close an exit
as dirty water or rainwater is discharged by operating with an exit
inclined surface 14 of the drainage guide plate 13.
[0022] The manhole cover 1 further includes a display part 20 for
showing various displays such as a firm name, a trademark, a phone
number, or so on by extending a side of the manhole top part 12 in
which one side, i.e., the gate 15 of the manhole top plate 12 is
provided; a space part 21 for fully stably opening the gate in a
lower part of the display part 20; and walls 22 that are vertically
formed with an equal height in four edges of the manhole top plate
12, wherein a wall 22'?in an exit direction of the drainage guide
plate 13 among the walls 22 is separately manufactured (for
convenience of a forming process) in a forming process of the
manhole cover and fastened with a fastening member such as a screw
or is manufactured in one body with resin welding or an adhesion
method, thereby completing the manhole cover 1.
[0023] On the other hand, in the manhole cover 1, a normal
reinforcing member (not shown) can be formed to be further
protruded outwardly between drainage holes 11 of a bottom surface
of the manhole top plate 12 or on a bottom surface of the drainage
guide plate 13 so as to maintain higher strength. In this case, a
protruded shape or a protruded direction of the reinforcing member
is formed to easily escape from the mold. The reinforcing member
has a known construction for strength reinforcement and material
saving in an injection molding product and thus description thereof
will be omitted.
[0024] Furthermore, the drainage guide plate 13 may be formed in a
curved shape or an inclined surface shape and have a large
inclination angle so as to discharge rapidly and smoothly.
[0025] Furthermore, in a case where a size of the manhole cover 1
is large, reinforcing barrier ribs (not shown) may be formed in one
body between the manhole top plate 12 and the drainage guide plate
13 by avoiding a position of the drainage hole 11.
[0026] FIG. 4 shows another embodiment of the present
invention.
[0027] In the embodiment, as the drainage guide plate 13' that is
integrally formed in the bottom of the manhole top plate 12 is
formed for two-way drainage, drainage can be more rapidly
performed. At this time, although a center part of the drainage
guide plate 13' is formed to adhere to the bottom of the manhole
top plate 12 or the center part is formed to separate a little from
the bottom, there is no problem in two-way drainage. However, only
when the drainage guide plate 13' is formed to be inclined in
two-way, drainage can be smoothly performed.
[0028] Furthermore, as described in FIGS. 1 to 3, as the gates 15
are provided in each of both exits of the drainage guide plate 13',
the gates are individually operated. Furthermore, because the gate
is made of metal such as stainless steel or synthetic resin, it is
not corroded and has excellent durability.
[0029] As described in FIG. 5, it is preferable that a hooking
protruded part 31 is formed in a predetermined position of both
sides of the manhole cover 1 and a hooking recessed part 32 is
formed in a manhole frame 3 of a position corresponding to a
position of the hooking protruded part 31. This is because it is to
previously prevent from not performing its original function by
being separated the manhole cover 1 from the manhole frame 3 or
opening when rainwater or dirty water flows backward in a manhole
due to a pouring rain within a short time as in the rainy
season.
[0030] Specifically, it is preferable to have a short protrusion
length so that the hooking protruded part 31 is smoothly inserted
in the manhole frame 3. The hooking protruded part 31 may be formed
in various shapes such as a circular shape and an oval shape, in
addition to a shape shown in FIG. 5 and one or more hooking
protruded part 31 may be formed in both sides of the manhole cover
1 and the manhole frame 3.
[0031] Therefore, the change of a shape, a size, the number, etc.
of the hooking protruded part 31 and the hooking recessed part 32
is included within the scope of the present invention.
[0032] According to the present invention having the
above-mentioned construction, an indentor or a producer can provide
a more distinguishable manhole cover 1 by forming (or may be
attached by separately forming) a display such as a desired
trademark, a firm name, various slogans, or a telephone number in a
manufacturing process in a display part 20 that is provided in one
side of the manhole top plate 12.
[0033] Furthermore, the drainage guide plate 13 is largely formed
to entirely cover the bottom of the manhole top plate 12 and an
exit of the drainage guide plate 13 is also very large to rapidly
discharge rainwater or dirty water that passes the drainage hole
11. Accordingly, if various foreign substances such as leaves or
branches pass only the drainage hole 11, they can be naturally
discharged. Therefore, the drainage guide plate 13 is not blocked
and has very good safety.
[0034] Specifically, as the manhole cover according to the present
invention is manufactured with injection molding of synthetic resin
(the manhole frame is manufactured with injection molding of
synthetic resin), its weight is much smaller than that of a manhole
cover that is made of general cast iron. Accordingly, the manhole
cover is conveniently handled and carried, very conveniently
constructed, and the appearance of a city may be beautifully
maintained because it may be formed with various colors.
[0035] The drainage guide plate 13' for simultaneously performing
drainage in two-way is shown in FIG. 4 for showing another
embodiment of the present invention. In this case, as drainage is
simultaneously performed in two-way, it is very rapidly
performed.
[0036] The invention being thus described, it will be obvious that
the same may be varied in many ways. Such variations are not to be
regarded as a departure from the spirit and scope of the invention,
and all such modifications as would be obvious to one skilled in
the art are intended to be included within the scope of the
following claims.
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