KR20100049160A - Locker of hinge type manhole cover - Google Patents

Locker of hinge type manhole cover Download PDF

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Publication number
KR20100049160A
KR20100049160A KR1020080108213A KR20080108213A KR20100049160A KR 20100049160 A KR20100049160 A KR 20100049160A KR 1020080108213 A KR1020080108213 A KR 1020080108213A KR 20080108213 A KR20080108213 A KR 20080108213A KR 20100049160 A KR20100049160 A KR 20100049160A
Authority
KR
South Korea
Prior art keywords
manhole cover
case
lid body
locking
lid
Prior art date
Application number
KR1020080108213A
Other languages
Korean (ko)
Inventor
김경수
Original Assignee
김경수
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김경수 filed Critical 김경수
Priority to KR1020080108213A priority Critical patent/KR20100049160A/en
Publication of KR20100049160A publication Critical patent/KR20100049160A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1427—Locking devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1463—Hinged connection of cover to frame
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/14—Geometrical or physical properties resilient or elastic
    • E02D2200/146—Springs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/15—Geometrical or physical properties including at least a hinge

Abstract

The present invention is fixedly installed on the manhole, the lid seating portion is formed on the inner periphery, the rear side of the lid seating portion is provided with a first hinge coupling portion, the case is installed on the lid seating portion of the case, the rear side of the case And a lid body provided with a second hinge coupler to be rotatably coupled to the first hinge coupler, and locking means installed to lock or unlock an open state of the lid body to the front side of the case and the lid body. To; The hinge coupling portion relates to a hinged manhole cover locking device, characterized in that to install a manhole cover opening angle maintaining means to prevent the phenomenon that the manhole cover opened by an external impact is suddenly closed. According to the present invention, by providing a locking means that is tightly fixed by the spring action between the manhole cover and the manhole case that is hinged on one side, the manhole cover is useful in preventing the loss by maintaining a stable closed state, of course, The manhole cover can be prevented from easily detached due to impact or water pressure. And, by installing the manhole cover opening angle maintaining means in the hinge coupling portion, the phenomenon that the manhole cover opened by the external shock is prevented to close suddenly provides a stable working environment for the manhole worker.

Description

Lock of hinge type manhole cover

The present invention relates to a locking device for a manhole cover, and more particularly, it is hinged to the case fixedly installed on the manhole to prevent the loss of the manhole, the manhole cover is easily manhole by the force applied from water pressure or outside The present invention relates to a hinged manhole cover locking device having a safety device which prevents the device from being suddenly closed by being kept open of the manhole cover in the hinge coupling part while preventing the detachment or unauthorized opening from the door.

In general, manholes are installed at certain intervals of underground pipelines to check the water supply, sewage or communication cables or power supply lines installed in the basement, or to repair them. The manhole cover is installed in an openable structure.

However, the conventional manhole cover has a structure in which the handles can be put in and pulled out from both sides, so that anyone can easily detach it from the manhole body and open the manhole cover without permission.

In addition, such a conventional manhole cover is a case of causing a safety accident when the water pressure of the upper and the sewer pipe rises due to the sewage flowing back in the rainy season, or the manhole cover is easily released due to the impact of the vehicle driving on the road. It was frequently generated, and there was a disadvantage in that the installation inside the manhole could not be securely protected.

Therefore, a manhole cover with a locking device has been proposed in view of such a problem, but such a manhole cover locking device is very complicated in structure and difficult to process in manufacturing, causing various safety problems in spite of an increase in product cost. The representative case is that the foreign matter accumulates over a long time in the manhole cover locking part and loses its function.

In addition, in the case of the manhole cover installed to connect one side to the manhole case to prevent loss, the manhole cover is frequently closed without notice by the external impact regardless of the operator's intention, and work in the manhole There was a problem that caused a serious safety accident, such as causing a fatal injury to the worker who performed the operation.

The present invention has been made in view of such a conventional problem, the structure is simple and has a very convenient locking device to keep the manhole cover in a stable closed state, even in the open state attached to the manhole case safe The main purpose is to provide a locking mechanism of the hinged knowledge manhole cover, which provides both the prevention of theft and the securing of safety by maintaining the working environment.

Locking device of the hinged manhole cover of the present invention for effectively achieving the above object, the lid seating portion is formed on the inner periphery, the rear side of the lid seating portion is provided with a first hinge coupling portion, the lid seating of the case It is installed on the part, the rear side has a lid body provided with a second hinge coupling portion to be rotatably coupled to the first hinge coupling portion of the case, and locks the open state of the lid body on the front side of the case and the lid body Or locking means installed to unlock; The hinge coupling portion is characterized in that the manhole cover opening angle maintaining means is installed so as to prevent the phenomenon that the manhole cover opened by the external impact is suddenly closed.

According to one embodiment of the invention, the manhole cover opening angle maintaining means, a plurality of insertion grooves formed along the circumferential surface of the second hinge coupling portion of the lid body, and stepwise fitted into the insertion groove of the second hinge coupling portion. It is characterized in that it is composed of an elastic stopper installed in the lid seating portion of the case so as to be elastically supported.

According to another embodiment of the present invention, the locking means, preferably, forming a locking jaw in the case, the cap body to form a coupling hole, the coupling hole having a head on the upper end to be caught in the upper end It is inserted into the coupling, the long rod, in conjunction with the rotation of the head in the lower part of the locking jaw to install or lock the locking jaw, characterized in that the spring and the nut is coupled to the lower clasp to hold the clamp do.

According to another embodiment of the present invention, the locking means more preferably, forming a locking clasp on the lower portion of the lid body, forming a coupling hole in the case, the head on the upper end to be caught in the upper end of the coupling hole A long rod having a portion is coupled to each other, wherein the long rod is provided at a lower portion thereof so as to be locked or latched to the locking portion by interlocking with the rotation of the head, and a spring and a nut are coupled to the lower portion of the clamp to hold the clamp. It is characterized by.

In embodiments of the present invention, it is more preferable that the long rod is coupled to the bushing around the rotation so that the rotation action is not hindered by foreign matters during rotation.

The locking device of the hinged manhole cover according to the present invention is installed between the manhole cover and the case fixedly installed in the manhole to provide a locking means that is tightly fixed by the spring action of the spring so that the manhole cover can be stably closed. By doing so, the manhole cover can be prevented from being easily detached due to external impact or water pressure, and the manhole cover is installed to be opened and closed in a hinged manner to the manhole case, thereby preventing unauthorized opening and loss in advance. Provide the effect. In addition, the manhole cover supports the fall of the lid body when an unexpected situation occurs, in which an accidentally touching the lid body by a person passing through the manhole cover is opened by the hinge part stepped by an elastic stopper installed in the case. Therefore, the incidence of safety accidents can be significantly reduced.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view illustrating a case and a lid body of a manhole cover according to a first embodiment of the present invention, and FIG. 2 is a state in which the case and lid body of a manhole cover according to a first embodiment of the present invention are locked. 3 is a cross-sectional view showing a state in which the manhole cover is opened from the case according to the first embodiment of the present invention.

As shown in Figures 1 to 3, the manhole cover according to the present embodiment is fixedly installed on the manhole, the case 10 and the lid seating portion 12 is formed on the inner periphery, and the lid seating portion 12 It is seated, and consists of a lid body 20 is hinged to the rear portion to selectively open and close the upper portion of the case (10).

The case 10 is provided with a flange portion 11 on the outer circumference thereof so as to be mounted around the upper end of the manhole, and the case 10 is fastened to a fixing bolt (not shown) on the ground to the flange portion 11. A plurality of bolt holes 13 are formed at regular intervals to be fixed so as not to flow on the manhole.

In addition, the lid seating portion 12 of the case 10, the locking jaw of the lid body 20 to be described later on the front side is selectively locked and the locking jaw to lock or unlock the opening of the lid body 20 14 is protruded, and a pair of first hinge coupling portions 17 are formed at the rear side so that the lid body 20 can be hinged rotatably based on the lid body 20.

The lid body 20 has a plurality of reinforcing ribs 21 on an upper surface thereof, and the lid body 20 is selectively locked to the locking jaw 14 of the case 10 at the front side thereof, and the lid body 20 is affected by water pressure or external impact. Locking means 30 is provided in the vertical direction so that is not easily separated, the rear end is preferably rotatably coupled to the first hinge coupling portion 17 of the case 10 through the shaft 24. Is a pair of second hinge engaging portion 23 has a circumferential surface is curved. At this time, the locking means 30 and the locking jaw 14 may be configured in two or more if necessary.

The locking means 30 is to form a coupling hole 22 having a groove on the upper surface of the lid body 20, inserting the long rod 32 into the coupling hole 22, the long rod 32 A head 31 having a larger diameter than that of a lower part is formed at an upper end thereof so as to be engaged with the groove of the coupling hole 22, and the lower part of the long rod 32 rotates left and right in association with the rotation of the head 31. And the locking jaw (35) to be locked to the locking jaw 14 of the case 10 to lock or release the locking state of the case 10 of the lid body 20 in a state of being held by the spring 36 It is fixedly installed by the nut 37.

At this time, the lower part of the long rod 32 is preferably composed of a square pillar portion 33 to which the clamp 35 is fitted, and a cylindrical portion 34 having a screw thread at its lower end, and the square pillar portion 33 The clasp 35 to be inserted into the rectangular through-hole 35a corresponding to this in a state inclined to one side so as not to be caught when opening the lid body 20.

That is, the cap body 20 is closed to be seated on the lid seating portion 12 of the case 10 in a state in which the clamping rod 35 of the long rod 32 is not caught by the catching jaw 34 of the case 10. Then, when the lock (35) is rotated 90 degrees in the state in which the head 31 can be rotated left and right, the lock (35) is locked to the locking jaw 14, the lid body 20 is not locked The state will be maintained.

In addition, when the lid body 20 is to be opened from the case 10, the head 31 of the long rod 32 is rotated to an initial position so that the catch 35 may be engaged with the case 10. 14) and then release the cap body 20 by pulling the lid body 20 by hand, the lid body 20 is one side relative to the second hinge coupling portion 23 coupled to the shaft 24 behind the case 10 Rotating with will open.

At this time, the long rod 32 acts as an element that hinders the rotational motion when foreign matter is accumulated around the rod, and the function thereof may be lost, and a bushing 38 made of rubber or plastic is fitted around the rod. It is desirable to. The bushing 38 is to effectively perform the function of the lubrication band, such as to prevent the loss of rotational force due to the corrosion of the contact surface of the coupling hole 22 and the long rod 32 of the lid body 20.

On the other hand, the second hinge coupling portion 23 of the lid body 20 is formed with a plurality of first and second insertion grooves (23a, 23b) at regular intervals along the circumference of the contact surface, the case ( The lid seating portion 12 of 10) is supported by a spring 16 fixedly fixed to the lower side, and the first insertion groove 23a or the second insertion groove 23b according to the rotated position of the lid body 20. The stopper 15 is selectively engaged to restrain the lid body 20 to temporarily prevent an unexpected fall of the lid body 20.

In this case, the number of the insertion grooves is not limited to two, and may be increased in consideration of the size of the manhole and the conditions of the working environment.

Therefore, when the passing lid touches the lid body 20 which is accidentally opened or the lid body 20 opened by a sudden strong wind is about to be closed, the second hinge coupling part 23 formed in the lid body 20 1 stopper 15 is caught in the insertion groove (23a) to support this and prevent the fall of the lid main body 20, even if the applied force exceeds the support force of the stopper 15 lid body 20 Is inclined at a predetermined angle and the stopper 15 is secondarily engaged in the second insertion groove 23b continuously formed along the second hinge coupling portion 23 of the lid body 20 so that the lid body 20 is closed. By suppressing sudden falls in stages, the incidence of safety accidents can be significantly reduced.

4 to 7 illustrate a manhole cover locking device according to a second embodiment of the present invention. As shown in the manhole cover locking device according to the second embodiment of the present invention, the lid body 50 is seated on the case 40 having a lid seat 42 on the inner circumference, the case 40 ) And a second hinge having a shaft 54 on both sides to be fitted into the first hinge coupling portion 47 and the shaft insertion groove 47a at the rear side of the lid body 50, respectively. The coupling portion 53 has a structure in which the hinge is coupled.

In addition, a plurality of first and second insertion grooves 53a and 53b are formed in the second hinge coupling portion 53 of the lid body 50 at predetermined intervals along the circumferential surface of the lid body 50, and the case 40. The lid seating portion 42 of the) is supported by a spring 56 fixedly fixed to the lower side, the first insertion groove (53a) or the second insertion groove (53b) according to the rotated position of the lid body (50) The stopper 55 is installed so as to be prevented from unexpected fall of the lid body 50 by being caught in the structure, which is not significantly different from the first embodiment.

Hereinafter, the manhole cover locking device according to the second embodiment of the present invention will be described in more detail.

First, the lid body 50, as shown in Figure 6, as shown in Figure 6 to form a locking portion 57 having a locking wall (57a), a locking key 65 to be described later formed on the lid body 50 The clasp 57 is selectively accommodated and supported to prevent the lid body 50 from being easily detached from the case 40 by hydraulic pressure or external shock.

In addition, a coupling hole 43a having a groove 43 is formed on the upper surface of the case 40, and a long rod 62 is inserted into the coupling hole 43a to be coupled to the upper surface of the long rod 62. A head 61 having a larger diameter than that of the lower part is formed to be locked to the groove 43 of the coupling hole 43a, and the lower part of the long rod 62 rotates left and right in association with the rotation of the head 61. And a clasp 65 which is accommodated in the clasp 57 of the lid body 50 and locks or releases the locking state of the case 40 of the lid body 50. It is fixedly installed by the nut 67 coupled from the lower end in a state.

At this time, the lower part of the groove 43 supports the lower part of the long rod 62, and the long rod support plate portion 44 having a through hole 44a so that when the lid main body 50 is opened, the locking clamp 65 can be accommodated and stored therein. ) Is configured.

On the other hand, a locking wall (57a) is formed on one surface of the locking portion (57), which is installed in the lower portion of the lid body 50 to accommodate the lock (65), the locking wall (57a) is a lock (65) By suppressing excessive rotation of the to perform a function to ensure a stable locking position.

In the above description of the locking device of the manhole cover according to the two embodiments of the present invention, the present invention is not limited to this and those skilled in the art can be modified and applied. For example, the case and the lid body of the present invention does not have any influence on achieving the object of the present invention even if the hinge shaft is provided to be separated separately, or changed to protrude the shaft on some of the case or the lid body. The structure of the coupling grooves corresponding to the other parts of the body may be applied in various ways, and therefore, the shape of the hinge should not be interpreted as specifically limiting the case and the lid of the present invention. In the rectangular shape, the second embodiment has a circular shape, but if necessary, the configuration of the present invention may be changed by changing the shape of the second embodiment or modified in various forms in consideration of the aesthetics of the installation site. .

1 is an exploded perspective view showing a manhole cover according to a first embodiment of the present invention.

Figure 2 is a cross-sectional view showing a closed state of the manhole cover according to the first embodiment of the present invention.

Figure 3 is a cross-sectional view showing an open state of the manhole cover according to the first embodiment of the present invention.

Figure 4 is an exploded perspective view showing a manhole cover according to a second embodiment of the present invention.

Figure 5 is a cross-sectional view showing a closed state of the manhole cover according to a second embodiment of the present invention.

Figure 6 is a plan view showing a locking means of the manhole cover according to a second embodiment of the present invention.

Figure 7 is a sectional view showing an open state of the manhole cover according to a second embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10, 40; Case 11; Flange

12, 42; Lid seat 13; Bolt ball

14; Latching jaws 15, 55; stopper

16, 36, 56, 66; Springs 17 and 47; First hinge coupling part

20, 50; Lid body 22, 43a; Joiner

23, 53; Second hinge coupling portions 23a, 23b, 53a, and 53b; Insert groove

24, 54; Axis 30; Locking means

31, 61; Head 32, 62; Jangbong

35, 65; Clamps 37, 67; nut

38; Bushing 57; Clasp

Claims (5)

A case which is fixedly installed on the manhole, a lid seating portion is formed at an inner circumference, and a case having a first hinge coupling portion at a rear side of the lid seating portion; A lid body provided on the lid seating portion of the case and having a second hinge coupling portion at a rear side thereof so as to be rotatably coupled to the first hinge coupling portion of the case; And locking means installed on the front side of the case and the lid body to lock or unlock the open state of the lid body; The hinge coupler includes a manhole cover opening angle maintaining means to prevent the manhole cover opened by an external impact from being suddenly closed; Locking device of the hinged manhole cover, characterized in that by installing. The method of claim 1, wherein the manhole cover opening angle maintaining means, the plurality of insertion grooves formed along the circumferential surface of the second hinge coupling portion of the lid body, and stepped into the insertion groove of the second hinge coupling portion elastic support Locking device of the hinged manhole cover, characterized in that consisting of an elastic stopper installed in the lid seating portion of the case. According to claim 1, The locking means, forming a locking jaw in the case, the lid body to form a coupling hole, the coupling hole is coupled to the long rod having a head on the upper end to be caught in the upper end, The long rod, a hinged manhole cover, characterized in that the locking mechanism is installed so as to lock or release the locking jaw in conjunction with the rotation of the head in the lower portion, the spring and the nut is coupled to the lower clamp to support the clamp. Lock. The method of claim 1, wherein the locking means, forming a locking latch in the lower portion of the lid body, and forms a coupling hole in the case, the coupling hole is coupled to the long rod having a head on the upper end to be caught in the upper end The long rod is hinged, characterized in that the locking mechanism is installed so as to lock or release the locking portion in conjunction with the rotation of the head portion in the lower portion, the spring and the nut is coupled to the lower portion of the clamping force to hold the clamping portion. Manhole cover lock. The hinge device of claim 3 or 4, wherein a bushing is coupled to the long rod to prevent foreign substances from being caught.
KR1020080108213A 2008-11-03 2008-11-03 Locker of hinge type manhole cover KR20100049160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080108213A KR20100049160A (en) 2008-11-03 2008-11-03 Locker of hinge type manhole cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080108213A KR20100049160A (en) 2008-11-03 2008-11-03 Locker of hinge type manhole cover

Publications (1)

Publication Number Publication Date
KR20100049160A true KR20100049160A (en) 2010-05-12

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KR1020080108213A KR20100049160A (en) 2008-11-03 2008-11-03 Locker of hinge type manhole cover

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101582762B1 (en) * 2014-12-17 2016-01-05 심기중 Manhole cover the join structure
KR20170011034A (en) * 2015-07-21 2017-02-02 주식회사 국보성금속 Coupling device of manhole covers
KR20190017263A (en) 2017-08-10 2019-02-20 이소연 Manhole cover and Pedestal lock

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101582762B1 (en) * 2014-12-17 2016-01-05 심기중 Manhole cover the join structure
KR20170011034A (en) * 2015-07-21 2017-02-02 주식회사 국보성금속 Coupling device of manhole covers
KR20190017263A (en) 2017-08-10 2019-02-20 이소연 Manhole cover and Pedestal lock

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