KR101686577B1 - Valve room installed a manhole with a hinge-type cover - Google Patents

Valve room installed a manhole with a hinge-type cover Download PDF

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Publication number
KR101686577B1
KR101686577B1 KR1020160044810A KR20160044810A KR101686577B1 KR 101686577 B1 KR101686577 B1 KR 101686577B1 KR 1020160044810 A KR1020160044810 A KR 1020160044810A KR 20160044810 A KR20160044810 A KR 20160044810A KR 101686577 B1 KR101686577 B1 KR 101686577B1
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KR
South Korea
Prior art keywords
manhole
manhole cover
bolt
truncated cone
inner guide
Prior art date
Application number
KR1020160044810A
Other languages
Korean (ko)
Inventor
이선동
Original Assignee
(주) 디케이금속
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Priority to KR1020160044810A priority Critical patent/KR101686577B1/en
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Publication of KR101686577B1 publication Critical patent/KR101686577B1/en

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    • 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
    • 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
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21—Brakes
    • E05Y2201/212—Buffers
    • E05Y2900/612—

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

The present invention relates to a valve chamber in which a manhole cover assembly is hingedly installed, more specifically, it is capable of originally blocking inflow of rainwater or the like into a valve chamber and also capable of accurately locking and unlocking a manhole cover, So that the manhole cover can be opened and closed and the manhole cover is erected by the shock absorber even when the manhole cover is opened.
The manhole cover assembly 10 includes a manhole support frame 200 coupled to an upper portion of the manhole pipe 4 and a manhole cover 200 having a hinged opening at one side of the manhole support frame 200, And a shock absorber 300 hingedly connected at both ends between the manhole cover 100 and the manhole support frame 200 to support opening and closing of the manhole cover 100; The manhole supporting frame 200 has a ring-shaped vertical wall 203 vertically formed on an inner peripheral upper side of a ring-shaped flange portion 201 coupled to the upper surface of the manhole pipe 4, An outer hinge groove 202 is formed on the outer side of the opened portion so as to protrude outward and a stopping protrusion 204 for mounting the manhole cover 100 is formed around the inner periphery of the vertical wall 203, A packing groove 205 is formed on the upper surface of the latching jaw 204 at a portion where the vertical wall 203 and the latching jaw 204 meet, and the upper portion of the latching jaw 204, A packing 206 is fitted so as to protrude; The manhole cover 100 has a bolt fastening portion 103 to which a bolt 106 is fastened at a central portion and a lower end portion of the bolt fastening portion 103 is fastened to an outer circumferential edge of an upper plate 104, A ring-shaped rim 101 is formed on the jaw 204 so as to protrude downward. An inner hinge 105 inserted into the outer hinge groove 202 and hinged by the hinge pin is formed at one side of the rim 101 And a truncated cone 107 in the form of an inverted truncated cone which is lifted and lowered in accordance with the rotation of the bolt 106 is provided on the lower side of the bolt fastening portion 103. In the upper plate 104 around the truncated cone 107, And an inner support wall 109 formed at an interval between the inner guide holes 108 is formed downward and the upper plate 104 at a position radially corresponding to each of the inner guide holes 108 is formed with an outer side An outer support base 111 on which the guide holes 110 are formed is formed and the inner guide holes 10 8 and the outer guide hole 110 are loosely inserted into the inner guide hole 108 so as to horizontally move according to the descent of the truncated cone 107 and hang the outer end of the bolt 114 on the lower side of the latching jaw 204, The spring 112 is provided on the latch 114 between the spring latch 113 and the outer support 111. The spring 112 is elastically biased by the latch 114 between the latch 113 and the outer guide 111, So that the inner end of the latch 114 elastically contacts the outer inclined surface of the truncated cone 107. [0035]

Description

[0001] The present invention relates to a valve seat for a manhole cover assembly,

[0001] The present invention relates to a valve chamber in which a manhole cover assembly is hingedly mounted, and more particularly, to a valve chamber in which a manhole cover assembly is hingedly installed, (2 to 4) bolts elastically contacting the outer inclined surface of the truncated cone, and the outer ends of the bolts are configured to be caught by the engagement protrusions formed at the inner side of the manhole support frame, So that the manhole cover and the manhole supporting frame are completely waterproofed. Thus, the inflow of rainwater and the like into the valve chamber is prevented originally, and the manhole cover is accurately locked And it is possible to open and close the manhole cover without releasing large force while being able to release it, and even when the manhole cover is opened, According to that built by the will to help prevent an accident offended passersby.

The conventional invention is known from the patent publication No. 10-1264059 (entitled "Manhole Support Frame and Locking Device for Manhole Lid"), which can be used for easily locking / unlocking a manhole cover by one- To a manhole cover in a simple manner by simply replacing the manhole cover only while using the manhole holding frame provided in the manhole cover.

8A and 8B, according to the operation of the locking operation tool 20, which is a bolt, a prong section 51 formed on one side of the lock lever 50 is lowered The crushing protrusion 53 formed on the other side of the manhole cover 10-1 can lift and lower the vertical and flat inner circumferential surface of the manhole support frame 70 to lock the manhole cover 10-1 by a simple one- It is a characteristic point.

Such a conventional invention is applied to all kinds of manholes designed for human access to check or repair or clean a rock or upper sewer, a boiler, a water tank, etc., and is applied to the present invention which is used exclusively for a valve chamber There is a difference in the field.

In the above-described prior art, the lever holder 30 provided below the center of the manhole cover 10-1 is raised and lowered by turning the bolt-type lock operation tool 20 installed in the upper surface of the manhole cover 10-1, A rotatable support 60 is provided on the bottom surface of the lid 10-1 to support the center of the lever. The rotatable support 60 is provided with a pivotal support 52 bent in a semi- The one end side rod-like motion section 51 of the support section 52 is held by the lever holder 30 and the other end of the rotation support section 52 is pressed against the vertical and flat inner circumferential surface 71 of the manhole support frame 70, A projection 53 is formed.

Accordingly, the lever holder 30 installed below the center of the manhole cover 10-1 is lifted and lowered by the operation of turning the bolt-type lock operation tool 20, and the lever holder 30 is lifted and lowered, One side end of the prong section 51 of the lever 50 is lifted and lowered so that the other side claw protrusion 53 is pivoted in a leaning manner as opposed to the prong section 51 about the pivot point 60, The pressure preventing pressure region 55 formed at the distal end of the claw protrusion 53 while being in contact with the vertical and flat inner circumferential surface 71 of the manhole supporting frame 70 in a surface contact manner while being locked / unlocked.

The conventional manhole cover 70 and the manhole cover 10 have the same structure as that of the conventional manhole cover 10. The manhole cover 70 and the manhole cover 10 -1 is formed by molding and then the necessary portions are separately cut. Therefore, since the vertical inner circumferential surface 71 of the existing manhole support frame 70 is uneven and the dimensions are not constant, There is a problem in that the distal end portion of the exposure preventing pressure region 55 of the lever 50 does not accurately contact the inner circumferential surface 71 of the manhole support frame 70 and the locking function of the manhole cover 10-1 can not be properly performed .

In addition, since the prior art can be installed in all types of manholes, it is not equipped with a waterproof function, and thus has a problem that it is not suitable for use as a manhole for a valve room, which is required to be waterproof as in the present invention.

Since the heavy manhole cover 10-1 is completely separated from the manhole supporting frame 70, the operator must perform an operation of hardly lifting and closing the heavy manhole cover 10-1 And the risk of causing passengers to fall into the inside of the manhole when the manhole cover was opened.

Patent Registration No. 10-1264059 (entitled: Manhole Support Frame and Manhole Lid Locking Device)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a manhole cover having a truncated cone raised and lowered by turning a bolt below the center of a manhole cover, The manhole cover is hinged at one end to support the manhole cover by the shock absorber, and the manhole cover is hinged to the outside of the manhole cover, And the manhole support frame is formed to have a waterproof structure so as to be completely watertight so that the inflow of rainwater or the like into the valve chamber can be originally blocked and the manhole cover can be accurately locked and unlocked so that the manhole cover can be opened and closed And the manhole cover is opened by the shock absorber even when the lid is opened, And that as the technical challenges to be prevented.

In addition, a light emitting device detachable by a magnet is installed at an arbitrary position on the inner side of the manhole cover combination, and then the light emitter is attached to the opened manhole cover when the manhole cover is opened to easily inform the passerby that the manhole cover is opened. Another object of the present invention is to make it easier for the operator to enter the manhole.

In order to accomplish the above object, the present invention provides a manhole support structure comprising: a manhole support frame coupled to an upper portion of a manhole pipe connected to an upper side of a valve chamber; a manhole cover installed at an upper portion of the manhole support frame, And a manhole cover assembly hingedly connected to both end portions of the manhole cover and the manhole support frame by a hinged connection to provide a shock absorber for supporting the opening and closing of the manhole cover is hingedly mounted on the upper surface of the manhole tube, Shaped vertical wall is vertically formed on the inner periphery of the ring-shaped flange portion, and one side of the vertical wall is open so that the outer hinge groove protrudes outward on the outer side of the opened portion, A packing groove is formed in the upper surface of the engaging jaw at a portion where the vertical wall of the manhole supporting frame meets the engaging jaw and the packing groove is formed in the packing groove, And the upper end of the bolt head is formed on the outer circumferential surface of the upper plate so that the bolt head groove is opened on the upper side of the bolt fastening portion. And an inner hinge which is inserted into the outer hinge groove and is hinged by the hinge pin is formed at one side of the rim, and the upper surface of the upper part of the packing at the outer periphery of the lower end of the packing And a plurality of radial ribs formed with grooves in a space formed between the outer wall surface of the inner support wall and the inner wall surface of the rim are formed in a radial direction with an interval therebetween, and at the lower side of the bolt fastening portion, A truncated cone-shaped truncated cone is mounted on the top of the truncated cone, and several inner guide holes Wherein the inner support wall is formed in a downward direction and the upper plate at a position radially corresponding to each of the inner guide holes is formed with an outer support base having an outer guide hole corresponding to the inner guide hole, Three bolts are installed in the hole and the outer guide hole at intervals of 120 degrees with the outer end of the bolt being horizontally moved in accordance with the descent of the truncated cone and the outer end of the bolt is hooked below the engaging jaw. The outer end of the bolt A spring is provided on the latch located between the inner guide hole and the outer guide hole. A spring is elastically provided on the latch between the spring latching portion and the outer support. A spring is provided on the inner wall surface of the manhole tube. And a chain mounting hole to which an end of a chain having a hooking ring is connected is installed, And the magnet block to the installation ring portion is formed to be walking, the magnet block, characterized in that the light emitter is installed.

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As described above, according to the present invention, the truncated cone is raised and lowered by turning a bolt installed at the center of the manhole cover, and the outer end of several bolts elastically provided outside the truncated cone in the radial direction by the rising and falling of the truncated cone The manhole cover can be easily locked and unlocked, and the manhole cover can be opened and closed in a hinged manner by a bolt, so that the heavy manhole cover can be easily opened and closed And it is effective to prevent a safety accident because it is not instantly closed when it is closed, and to prevent an accident of a passerby when the manhole cover is opened almost vertically when the lid is opened.

In addition, since the manhole cover and the manhole supporting frame are formed in a waterproof structure so as to be completely watertight, inflow of rainwater or the like into the valve chamber is effectively cut off, and at an arbitrary position inside the manhole cover assembly, When the manhole cover is opened after the light emitter is installed, the light emitter is attached to the opened manhole cover to easily inform the passengers of the state that the manhole cover is open, thereby helping to prevent a fatal accident, It has the effect of making it safe and easy to enter.

The light emitting device is attached to a manhole cover assembly at a predetermined position on the lower side of the manhole cover to attach the magnet part included in the light generator to the manhole cover assembly at a certain position inside the manhole cover assembly so that the vehicle is loaded with a large load The light emitter does not fall off even when it hits the light emitter, so that the light emitter can be easily used.

1 is a perspective view showing an open state of a manhole cover assembly included in the present invention.
2 is a bottom view of a closed state of a manhole cover assembly included in the present invention.
FIG. 3A and FIG. 3B are cross-sectional views taken along line AA of FIG. 2, showing a manhole cover in a closed state and an open state;
Figs. 4A and 4B are enlarged sectional views of the "B" part of Fig. 3 showing a closed state and an open state.
5 is a cross-sectional view showing another example of installation of the latch included in the present invention.
6 is an installation view showing a state in which a manhole cover assembly included in the present invention is installed in a valve chamber.
7 is an explanatory view showing a state in which a chain is installed in a light emitter included in the present invention;
8A and 8B are perspective views of a conventional manhole cover and a conventional manhole cover and a manhole support frame, respectively.

Hereinafter, a valve chamber in which a manhole cover assembly according to the present invention is hinged will be described with reference to FIGS. 1 to 7 attached hereto.

6, the manhole tube 4 is connected to the upper side of the opening 2 of the valve chamber main body 3 having the opening 2 formed on the upper side thereof, To a valve chamber (1) in which a manhole cover assembly (10) is hingedly installed.

1 and 6, the manhole cover assembly 10 includes a manhole support frame 200 coupled to an upper portion of the manhole pipe 4, A shock absorber 300 which hingably connects both end portions of the manhole cover 100 and the manhole supporting frame 200 to support the opening and closing of the manhole cover 100, .

As shown in FIGS. 1 and 3, the manhole supporting frame 200 has a ring-shaped vertical wall 203 vertically formed on an inner circumferential upper side of a ring-shaped flange portion 201 coupled to an upper surface of the manhole tube 4, One side of the vertical wall 203 is opened and an outer hinge groove 202 is formed to protrude outward from the opened portion. The outer hinge groove 202 is formed with a drain hole 202a on the bottom surface thereof.

A stopping protrusion 204 is formed on an upper portion of the inner peripheral surface of the vertical wall 203 so as to mount the edge 101 of the manhole cover 100. The inner wall surface of the vertical wall 203 and the engagement protrusions A packing 206 is formed on the upper surface of the latching jaw 204 at a portion where the upper surface of the latching jaw 204 meets with the upper surface of the latching jaw 204, Respectively.

1 to 4, the manhole cover 100 includes a bolt fastening portion 103 to which a bolt 106 is fastened at a central portion thereof, and a top plate (not shown) A ring-shaped rim 101 is formed on the outer circumference of the rim 104 to project under the rim 204. The rim 101 is inserted into the outer hinge groove 202 at one side of the rim 101 and hinged by a hinge pin. An inner hinge 105 to be installed is formed.

A truncated cone 107 in the form of an inverted truncated cone that ascends and descends in accordance with the rotation of the bolt 106 is provided below the bolt fastening portion 103. This is because the threaded portion of the bolt 106 is fastened to the inner circumference by a bolt fastening And a lower end portion of the bolt 106 forms a reduced diameter portion in the form of a round bar without threaded portion and the reduced diameter portion penetrates the lower portion of the center of the truncated cone 107 and is exposed to the lower exposed end portion When the bolt 106 is rotated by rotation of the bolt 106, idling occurs at a portion where the reduced diameter portion and the reduced diameter portion are fitted, so that the truncated cone 107 does not rotate and ascends and descends only when the bolt 106 rotates.

An inner support wall 109 is formed at a lower surface of the trunk 107 around the truncated cone 107 and has a number of inner guide holes 108 spaced apart from each other. An outer support base 111 having an outer guide hole 110 corresponding to the inner guide hole 108 is formed on the bottom surface of the upper plate 104 at a position corresponding to the direction of the inner guide hole 108. [

Each of the inner guide holes 108 and the outer guide holes 110 corresponding to each other is horizontally moved in accordance with the descent of the truncated cone 107 and is installed at an interval of 120 degrees at the outer end of the inner guide hole 108 and under the engagement jaw 204 The spring latching portion 113 is provided on the latch 114 positioned between the inner guide hole 108 and the outer guide hole 110 and the spring latching portion 113 is provided with three latches 114 loosely inserted therein. A spring 112 is elastically provided on the bolt 114 between the outer support 111 and the inner support 111 so that the inner end of the bolt 114 is elastically contacted with the outer inclined surface of the truncated cone 107.

As shown in FIGS. 1 and 4, an oblique surface attaching portion 101a is formed in front of the outer edge of the lower end of the frame 101 to contact the upper surface of the packing 206, and three bolts The inner end of the latch 114 may be inclined to correspond to the truncated cone 107 as shown in FIG. 3, and a roller 114a may be provided at the tip of the latch 114 as shown in FIG.

The radial ribs 115 in which a number of grooves 16 are formed in a space formed between the outer wall surface of the inner support wall 109 and the inner wall surface of the rim 101 are spaced apart from each other A groove 116 is formed in a portion where the shock absorber 300 is installed to prevent the shock absorber 300 from being caught when the manhole cover 100 is closed.

As shown in FIGS. 3 and 4, a lower end of the latching jaw 204 at which the outer end of the three latches 114 installed at intervals of 120 degrees is caught is inclined And an outer end of the latch 114 is formed so as to be inclined so as to correspond to the inclined latching portion 207. [

6 and 7 are views showing a state in which the light emitter 213 is attached to the upper side of the opened manhole cover 100 when the manhole cover 100 is opened by installing the light emitter 213 in the present invention, And the light emitting device 213 is attached to a desired position to open the manhole cover 100 and go into and out of the valve chamber 1 and use it as an illumination light when necessary work is performed.

This is because a chain fitting hole 210 is provided on the inner wall surface of the manhole tube 4 and an end of a chain 209 provided with a hook 208 is connected to the fitting hole 210 of the chain, The magnet block 211 is provided with a light emitter 213 so that the magnetic block 211 can be installed anywhere in the range of the length of the chain 209. [ When the light emitting device 213 is attached to a position longer than the length of the inner supporting wall 109, the hooking hole 208 is loosened by the hook 212, The magnet block 211 of the light emitter 213 can be attached and attached.

Reference numeral 214 in the reference numerals denotes a hook hole for hooking hooks or hook bolts for lifting up the manhole cover assembly 10 to the upper part of the valve chamber 1 and denoted by reference numeral 117 denotes a manhole cover 100 in a folded manner.

The operation of the present invention having the above-described structure will be described with reference to FIGS. 1 to 7. FIG.

The manhole cover assembly 10 as shown in FIG. 1 has a manhole support frame 200 mounted on an upper portion of a manhole pipe 4 installed on the upper side of the valve chamber 1 as shown in FIG. 6, And the flange portion 201 of the manhole support frame 200 are welded or bolted together.

After the manhole cover assembly 10 is installed on the upper side of the valve chamber 1, the valve chamber 1 provided with the manhole cover assembly 10 is buried in the ground, and the vertical wall 203 of the manhole support frame 200, And the upper surface of the manhole cover 100 is exposed to the upper side of the paper.

When the manhole cover 200 and the manhole cover 100 are to be locked in a state where the valve chamber 1 provided with the manhole cover assembly 10 is installed in the ground, as shown in FIGS. 1 to 3, When the bolt 106 fastened to the center of the upper plate 104 of the bolt 106 is rotated by a tool such as a wrench or the like, the bolt 106 is fastened to the female threaded portion of the bolt fastening portion 103 along the fastening direction of the bolt 106 Is lowered to the lower side.

When the bolt 106 is lowered while being screwed down, a portion of the lower end of the bolt 106 which is reduced in diameter without a thread is provided at the center of the truncated cone 107 so as to idle, and the truncated cone 107 descends do.

When the truncated cone 107 is lowered as described above, the upper end of the truncated cone 107 is wide and the lower portion is in contact with the inner end of three bolts 114 provided at intervals of 120 degrees on the outer circumferential surface of the narrow reverse truncated cone, The slider 114 horizontally moves in the outward direction.

At this time, the three latches 114 provided at intervals of 120 degrees are formed with a spring catch 113 at a portion located between the inner support wall 109 and the outer support 111, A spring 112 is provided between the outer support rods 111 so that the inner end of the bolt 114 is always in contact with the outer circumferential surface of the truncated cone 107 by elastic force of the spring and the outer end is in contact with the inner support wall 109 The inner guide hole 108 formed in the outer support table 111 and the outer guide hole 110 are loosely fitted in the outer guide hole 110. Therefore, when the truncated cone 107 whose inner peripheral surface is inclined downward, the bolt 114 is radially outward It will be opened.

The outer ends of the three bolts 114 provided at intervals of 120 degrees apart from each other enter the lower portion of the engaging jaw 204 of the manhole supporting frame 200. The outer end of the bolt 114 and the outer end The lower portion of the latching jaw 204 is inclined with respect to each other and is wedge-shaped to maintain a firm lock.

5, the roller 114a is provided at the inner end of the bolt 114 to smoothly contact the outer circumferential surface of the truncated cone 107 and the inner end of the bolt 114, Or when the bolt 114 does not move smoothly in the horizontal direction even though the truncated cone 107 descends when the inner end of the bolt 114 is inclined and the foreign body is rigidly formed as shown in FIG. It is prepared.

This makes it possible to smoothly move the bolt 114 horizontally outward even when there is a hard foreign substance on the outer circumferential surface of the truncated cone 107 in a state where the roller 114a is provided at the inner end of the bolt 114, 114 are loosely inserted into the inner and outer guide holes 108, 110 so that the truncated cone 107 is lowered so that the bolt 114 can spread radially outward.

When the manhole cover 100 is locked in the manhole support frame 200, the manhole cover 100 is strongly depressed in the downward direction of the manhole support frame 200 by the tightening force of the bolts 106, The inclined face portion 101a formed on the outer edge portion of the manhole cover 100 under the edge 101 of the manhole cover 100 is engaged with the engaging protrusion 101a at the inner corner portion where the engaging protrusion 204 and the vertical wall 203 meet The upper side of the packing 206, which is fitted in a protruding manner upward from the upper surface of the packing 206, is strongly pressed.

As the inclined face mounting portion 101a of the frame 101 strongly compresses the upper side of the packing 206 as described above, moisture such as rainwater flowing into the gap between the outer periphery of the rim 101 and the inner periphery of the vertical wall 203 The packing 206 is blocked and the inside of the manhole cover 100 is completely watertight so that water does not enter into the valve chamber 1.

In order to check the inside of the valve chamber 1 or to open the manhole cover 100 for a required operation, a bolt 106 fastened downward at the center of the top plate 104 of the manhole cover 100 is inserted into a hole The bolt 106 is loosened upward, and the lower end of the bolt 106 rises together with the truncated cone 107 provided so as to idle.

A plurality of bolts 114 (three bolts in the drawing) radially installed on the outer circumference of the truncated cone 107 are always inwardly moved by the spring 112, The state in which the outer ends of the latches 114 are hooked to the lower portion of the latching jaw 204 is released.

After the outer end of the bolt 114 is out of the engagement range of the engaging jaw 204 and the engagement state is released, when the knob 117 provided on the upper side of the upper plate 104 is pulled, And is hinged around the hinge coupling portion of the manhole cover 100 and the manhole supporting frame 200.

At this time, both ends of the shock absorber 300 are hingedly connected to each other between the manhole cover 100 and the manhole support frame 200, so that the manhole cover 100 can be hingedly opened without applying great force .

When the manhole cover 100 is hingedly opened, as shown in FIGS. 1 and 3, the opened manhole cover 100 is maintained in a state of being opened by the shock absorber 300, You can easily see the open lid.

However, when it is dark as in the nighttime, it is difficult to easily confirm that the manhole cover 100 is open. At this time, as shown in FIGS. 1 and 6 and 7, the manhole cover 4 is attached to a certain position by a magnetic force 1, a magnet block 211 is attached to an upper portion of the manhole cover 100 and the light emitter 213 is lighted (illuminated) as shown in FIG. 1, and the manhole cover 100 So that it is possible to prevent an accidental failure to the inside of the valve chamber 1.

The light emitter 213 is hooked on a hook 212 at a second end of the light emitter 213. The hook 208 is connected to the chain 209 and the end of the chain 209 is connected to the manhole tube 4 When the vehicle travels over the manhole cover 100 or when a momentary impact due to an accident is transmitted to the manhole cover assembly 10 by a magnetic force, It is possible to easily prevent the light emitters 213 from dropping down to the deep inside of the valve chamber 1 and to prevent the light emitters 213 from being easily dropped when the light emitters 213 are always in position and need the light emitters 213 To find and use it.

The light emitter 213 is connected by a chain and the hook 208 is installed at one end of the light emitter 213 so that the light emitter 213 can be separated and used according to the user's need.

1: valve chamber 2: opening 3: valve chamber body
4: manhole tube 10: manhole cover assembly 100: manhole cover
101: rim 102: bolt head groove 103: bolt fastening portion
104: top plate 105: inner hinge 106: bolt
107: truncated cone 108: inner guide hole 109: inner supporting wall
110: outer guide hole 111: outer support bar 112: spring
113: spring hook portion 114: latch 115: radial rib
116: groove 117: handle 200: manhole support frame
201: flange portion 202: outer hinge groove 202a: drain hole
203: vertical wall 204: latching jaw 205: packing groove
206: packing 207: warp stop 208:
209: chain 210: chain installation 211: magnetic block
212: ring portion 213: light emitter 300: shock absorber

Claims (3)

A manhole support frame 200 coupled to an upper portion of a manhole pipe 4 connected to the upper side of the valve chamber 1 and a manhole cover 200 installed on the top of the manhole support frame 200 in a hinged manner, And a shock absorber 300 connected between the manhole cover 100 and the manhole support frame 200 for supporting the opening and closing of the manhole cover 100. The manhole cover 100 includes a manhole cover 100, The manhole supporting frame 200 is constructed such that a ring-shaped vertical wall 203 is vertically formed on the inner peripheral upper side of the ring-shaped flange portion 201 coupled to the upper surface of the manhole tube 4, One end of the upright wall 203 is opened and an outer hinge groove 202 is formed to protrude outward from the opened portion of the upright wall 203. The upper end of the upright wall 203 is provided with a stopper When the jaw 204 is formed,
A packing groove 205 is formed on the upper surface of the latching jaw 204 at a portion where the vertical wall 203 of the manhole supporting frame 200 meets the latching jaw 204 and the latching jaw 204 A packing 206 is fitted so as to protrude upward,
The manhole cover 100 has a bolt fastening portion 103 to which a bolt 106 is fastened at a central portion and a lower end portion of the bolt fastening portion 103 is fastened to an outer circumferential edge of an upper plate 104, A ring-shaped rim 101 is formed on the jaw 204 so as to protrude downward. An inner hinge 105 inserted into the outer hinge groove 202 and hinged by the hinge pin is formed at one side of the rim 101 A sloped surface mounting portion 101a for contacting the upper surface of the packing 206 is formed around the front end of the lower end outer corner portion and a space formed between the outer surface of the inner supporting wall 109 and the inner surface of the rim 101 Several radial ribs 115 in which the grooves 16 are formed are formed in the radial direction at intervals,
A truncated cone 107 is provided on the lower side of the bolt fastening portion 103 in the form of an inverted truncated cone which is lifted and lowered in accordance with the rotation of the bolt 106. A plurality of inner guide holes 108 And the inner guide wall 108 is formed with the inner guide wall 108 formed at an interval with the inner guide hole 108 formed in the inner guide hole 108. The inner guide wall 108 is formed with the inner guide wall 108 formed in a spaced- The outer guide posts 111 having the holes 110 are formed and the inner guide holes 108 and the corresponding outer guide holes 110 are horizontally moved in accordance with the descent of the truncated cone 107, Three slanted bolts 114 provided at intervals of 120 degrees to hang on the lower side of the jaw 204 are loosely inserted and a slant stopping portion 207 is provided in the lower portion of the latching jaw 204 to receive the outer end of the bolt 114, And a bolt (1) positioned between the inner guide hole (108) and the outer guide hole (110) A spring 112 is elastically provided on a latch 114 between the spring latch 113 and the outer support 111,
The manhole tube 4 is provided at its inner wall with a chain fitting hole 210 to which an end of a chain 209 provided with a hook 208 is connected. Wherein the magnet block is provided with a magnet block formed with the magnet block and the magnet block is provided with a light emitter. The valve seat according to claim 1, wherein a roller (114a) is provided at the tip of the bolt (114). delete
KR1020160044810A 2016-04-12 2016-04-12 Valve room installed a manhole with a hinge-type cover KR101686577B1 (en)

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KR101852843B1 (en) * 2017-05-11 2018-04-30 김함태 Locking Type Manhole Assembly Having a RFID Tag
CN108049712A (en) * 2017-11-24 2018-05-18 嘉兴万源时装有限公司 A kind of steam copper bell for garment production
CN108589788A (en) * 2018-06-11 2018-09-28 江苏广通电力设备有限公司 A kind of lifting integrated safe well lid
CN110144971A (en) * 2019-06-17 2019-08-20 吴婷婷 A kind of antitheft municipal inspection well cover
CN110578438A (en) * 2019-09-12 2019-12-17 潜山县九鼎精密机械有限公司 Building civil air defense engineering cement door
WO2020098343A1 (en) * 2018-11-14 2020-05-22 山东光韵智能科技有限公司 Anti-moving novel safety manhole cover
KR102162318B1 (en) * 2019-07-06 2020-10-06 김경호 manhole that is easy to close and close
KR20200133943A (en) * 2019-05-21 2020-12-01 주식회사 재성테크 Manhole cover structure
KR102298856B1 (en) * 2020-06-01 2021-09-07 최인환 A manhole cover with leverage open and close
CN115427635A (en) * 2020-04-24 2022-12-02 株式会社世界铸铁 Manhole cover opening and closing structure using screw

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KR101264059B1 (en) 2012-12-11 2013-05-21 남수택 A locking device of manhole support frame and manhole cover
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101852843B1 (en) * 2017-05-11 2018-04-30 김함태 Locking Type Manhole Assembly Having a RFID Tag
CN108049712A (en) * 2017-11-24 2018-05-18 嘉兴万源时装有限公司 A kind of steam copper bell for garment production
CN108589788A (en) * 2018-06-11 2018-09-28 江苏广通电力设备有限公司 A kind of lifting integrated safe well lid
WO2020098343A1 (en) * 2018-11-14 2020-05-22 山东光韵智能科技有限公司 Anti-moving novel safety manhole cover
KR20200133943A (en) * 2019-05-21 2020-12-01 주식회사 재성테크 Manhole cover structure
KR102279912B1 (en) * 2019-05-21 2021-07-21 주식회사 재성테크 Manhole cover structure
CN110144971A (en) * 2019-06-17 2019-08-20 吴婷婷 A kind of antitheft municipal inspection well cover
KR102162318B1 (en) * 2019-07-06 2020-10-06 김경호 manhole that is easy to close and close
CN110578438A (en) * 2019-09-12 2019-12-17 潜山县九鼎精密机械有限公司 Building civil air defense engineering cement door
CN110578438B (en) * 2019-09-12 2021-06-08 潜山县九鼎精密机械有限公司 Building civil air defense engineering cement door
CN115427635A (en) * 2020-04-24 2022-12-02 株式会社世界铸铁 Manhole cover opening and closing structure using screw
KR102298856B1 (en) * 2020-06-01 2021-09-07 최인환 A manhole cover with leverage open and close

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