KR20140100624A - Apparatus for locking manhole cover - Google Patents

Apparatus for locking manhole cover Download PDF

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Publication number
KR20140100624A
KR20140100624A KR1020130013091A KR20130013091A KR20140100624A KR 20140100624 A KR20140100624 A KR 20140100624A KR 1020130013091 A KR1020130013091 A KR 1020130013091A KR 20130013091 A KR20130013091 A KR 20130013091A KR 20140100624 A KR20140100624 A KR 20140100624A
Authority
KR
South Korea
Prior art keywords
locking
manhole cover
shaft
manhole
guide
Prior art date
Application number
KR1020130013091A
Other languages
Korean (ko)
Inventor
김동규
Original Assignee
디케이솔루션(주)
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Filing date
Publication date
Application filed by 디케이솔루션(주) filed Critical 디케이솔루션(주)
Priority to KR1020130013091A priority Critical patent/KR20140100624A/en
Publication of KR20140100624A publication Critical patent/KR20140100624A/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
    • E02D29/1427—Locking devices
    • 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

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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

Disclosed is a manhole locking apparatus. The manhole locking apparatus according to an embodiment of the present invention includes: a rotating body coupled to the center of the lower surface of a manhole cover; a locking cam which has guide protrusions formed on both ends and is coupled to the rotation shaft of the rotating body; a locking shaft which is coupled to and supported by the lower surface of the manhole cover and is arranged on both ends of the rotating body; and a guide member which is coupled to the end units of the locking shaft and has guide grooves on the inside to guide the guide protrusions. The guide protrusions move along the guide grooves and the locking cam moves in a vertical reciprocating motion by the rotation of the rotating body. The locking shaft moves to right and left to be accommodated in the locking groove formed on the inner wall surface of the manhole support or leave the locking groove.

Description

{APPARATUS FOR LOCKING MANHOLE COVER}

The present invention relates to a manhole cover locking device, and more particularly, to a manhole cover locking device capable of easily locking and unlocking a manhole cover to a manhole cover.

Generally, a manhole is installed on the road in order to inspect or manage facilities such as water and sewage pipes buried underground, city gas pipes, communication facilities, and electric facilities.

The manhole is composed of a manhole cover having a latching jaw and a manhole cover which is seated on the latching jaw and opens and closes the manhole.

However, the conventional manhole is seated on the manhole cover with only the self-weight of the manhole cover without a separate locking device. In particular, the manhole cover has a clearance with the manhole cover for easy opening and closing operations.

Therefore, when an unspecified number of manholes can be easily opened, a manhole cover made of metal is frequently stolen, and when an external force such as a vehicle load is applied to the manhole cover, severe noise is generated or the manhole cover is bounced out, There is a problem that it occurs.

In order to prevent this, in recent years, a nut is planted in a manhole support to form a female screw, and a bolt hole is formed in the corresponding manhole cover to seat the manhole cover on the manhole cover so that the female screw and the bolt hole are in alignment, By firmly fixing the lid, the occurrence of noise is prevented, and the phenomenon that the manhole cover is repelled by the external force is prevented.

However, the above-described locking device for the manhole cover has a problem in that it is not easy to move the manhole cover of a heavy weight so as to align the female threaded portion of the bolt hole and the manhole cover.

Also, when the bolt hole of the manhole cover and the position of the female thread of the manhole cover are not exactly aligned, if the bolt is tightened, the thread of the bolt is broken and the state of the manhole cover is deteriorated and the manhole cover can be easily separated There is a problem that it is not.

An embodiment of the present invention is to provide a manhole locking device capable of easily locking and unlocking a manhole cover to a manhole cover and preventing a manhole cover from being stolen and preventing a manhole cover from being detached due to an external force such as a vehicle .

According to one or more embodiments of the present invention, there is provided a locking device for fixing a manhole cover to a manhole support, the locking device comprising: a rotatable body coupled to a center of the bottom of the manhole cover; A locking cam formed at both ends thereof with a guide protrusion and coupled to a rotating shaft of the rotating body; A locking shaft coupled to the bottom of the manhole cover and disposed on both sides of the rotating body; And a guide member coupled to an end of the locking shaft and having a guide groove formed therein for guiding the guide protrusion, the guide protrusion being moved along the guide groove by rotation of the rotation body, A manhole locking device may be provided which is vertically reciprocating and the locking shaft is moved to the left and right to be accommodated and released in a locking groove formed in the inner wall surface of the manhole cover.

In addition, a mounting hole is formed at the center of the manhole cover, and the rotating body is configured such that a rotating shaft is coupled to a rotating plate having a keyhole, and the rotating plate is installed to be exposed to the outside of the manhole cover through the mounting hole .

The rotary key may further include a wheel-shaped handle, a key plate having a key protrusion fitted to the key hole, and a knob having a handle and a key plate, As shown in Fig.

In addition, a pair of support brackets are formed on the bottom surface of the manhole cover with fitting holes formed on both sides of the installation hole, and the locking shaft can be inserted and supported in the fitting hole.

In addition, an elastic spring is fitted to the outer circumferential surface of the locking shaft interposed between the pair of support brackets, and a locking pin for fixing the elastic spring can be fastened to the locking shaft.

In addition, the guide member may be formed with an opening at one side thereof, and a guide groove may be formed at an inner side thereof to receive the guide protrusion, and coupling protrusions may be formed at both ends of the opening.

In addition, the locking cam may be formed with a coupling groove in which the coupling projection is inserted adjacent to the guide projection, and the coupling projection may be configured to be capable of guiding along the coupling groove in accordance with the vertical reciprocating motion of the locking cam.

In addition, a snap ring and a fastener for preventing the release of the locking cam may be fastened to the upper and lower sides of the locking cam on the rotation shaft of the rotating body.

Further, a packing member may be mounted at an end portion where the manhole cover contacts the manhole cover.

The locking cam may be formed with a shaft hole into which the rotation shaft is inserted, and a thread line may be formed on the body of the rotation shaft and the shaft hole to correspond to each other.

The embodiment of the present invention can prevent theft of the manhole cover and reduce the replacement cost due to theft of the manhole cover and prevent the noise and the safety accident from occurring due to the external separation of the manhole cover by the external force of the vehicle or the like .

Further, since the manhole cover can be easily locked and unlocked by the manhole cover and the manhole cover can be hermetically sealed in the manhole cover, the effect of preventing the penetration of foreign matter and having excellent waterproofing and odor prevention function have.

1 is a perspective view of a manhole according to an embodiment of the present invention.
2 is a bottom perspective view of a manhole cover according to an embodiment of the present invention.
3 is an exploded perspective view of a manhole locking device according to an embodiment of the present invention.
4 is a detailed view of part A of the manhole locking device according to the embodiment of the present invention.
5 is a side cross-sectional view of a manhole locking device according to an embodiment of the present invention.
6 is an operational view of a manhole cover locking apparatus according to an embodiment of the present invention.

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

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, It should be understood that various equivalents and modifications may be present.

FIG. 1 is a perspective view of a manhole according to an embodiment of the present invention, FIG. 2 is a bottom perspective view of a manhole cover according to an embodiment of the present invention, and FIG. 3 is an exploded perspective view of a manhole locking apparatus according to an embodiment of the present invention. 5 is a side cross-sectional view of a manhole locking device according to an embodiment of the present invention, and Fig. 6 is a side view of a manhole lock device according to an embodiment of the present invention. Fig. 2 is an operation diagram of a manhole cover locking device according to the present invention.

The manhole 2 according to the embodiment of the present invention shown in FIGS. 1 and 2 includes a manhole cover 5, a manhole cover 3 for opening and closing the manhole 2, a manhole cover 3 attached to the manhole cover 3, And a locking device (10).

The manhole cover 5 is provided with a locking protrusion 8 on which the manhole cover 3 is seated in the annular main body 7.

Locking grooves 9 for accommodating the locking shaft 16 of the manhole locking device 10 to be described later are formed on both inner wall surfaces of the latching jaw 8.

At the center of the manhole cover 3, there is formed an installation hole 6 through which a rotary plate 22 of a rotating body 12 described later is exposed.

In the bottom surface mounting hole 6 of the manhole cover 3, a coupling plate 4 for coupling the rotating body 12 is integrally formed.

A packing member 56 may be mounted at an end of the manhole cover 3 which is in contact with the stopping jaw 8 of the manhole support 5. [

The packing member 56 may use an O-ring formed of rubber or silicone.

The packing member 56 mounted on the manhole cover 3 hermetically seals the manhole cover 3 in the manhole cover 5 to prevent foreign matter from penetrating and from the smell coming from the sewer or the like.

The manhole locking device 10 according to the embodiment of the present invention shown in FIGS. 2 to 5 includes a rotating body 12 coupled to the center of the bottom of the manhole cover 3, a rotating shaft 24 A rocking shaft 16 disposed on both sides of the rotating body 12 and a guide member 18 coupled to an end of the rocking shaft 16. The rocking cam 14 is rotatably supported by the rocking shaft 14,

The rotating body 12 of the manhole locking device 10 is fitted to the coupling plate 4 by being fitted into the upper surface mounting hole 6 of the manhole cover 3.

The rotating body 12 is constructed by coupling a rotating shaft 24 to a rotating plate 22 on which a keyhole 38 is formed.

The rotary plate 22 of the rotating body 12 is exposed to the outside of the manhole cover 3 through the installation hole 6. [

A keyhole 38 is formed on an upper surface of the rotary plate 22 so that the user can rotate the rotary body 12 using the rotary key 20 from the outside of the manhole cover 3. [

Screw lines corresponding to each other are formed in the body of the rotating shaft 24 and the shaft hole 30 of the locking cam 14.

1, the rotary key 20 is formed by attaching a knob 48 and a key plate 50 to the upper and lower ends of the rotation bar 52. As shown in FIG.

The handle 48 of the rotary key 20 is shaped like a wheel so that the rotary key 20 can be easily turned.

The key plate (50) is formed with key projections (53) fitted in the keyhole (38).

The locking cam 14 of the manhole lock device 10 is configured to be coupled to the rotating shaft 24 of the rotating body 12. [

The locking cam 14 is formed in a rectangular shape, and a shaft hole 30 is formed at the center to sandwich the rotating shaft 24, and a screw thread is formed in the shaft hole 30.

As shown in Fig. 3, guide projections 26 are formed at both end portions of the locking cam 14.

The guide protrusion 26 is formed in a shape corresponding to the guide groove 32 of the guide member 18 to be described later, and may be formed in an oblique rectangular shape in the embodiment of the present invention.

The guide protrusion 26 is moved along the guide groove 32 of the guide member 18 to be described later.

The engaging groove 28 is formed on the outer circumferential surface of the locking cam 14 so as to be adjacent to the guide projection 26.

An engaging projection 34 of a guide member 18, which will be described later, is fitted into the engaging groove 28.

The rotation shaft 24 of the rotating body 12 may be provided with a retaining ring 41 and a retaining ring 40 on the upper and lower sides of the locking cam 14, respectively, for preventing the locking cam 14 from coming off.

On the other hand, the locking shaft 16 of the manhole lock device 10 is coupled to the bottom surface of the manhole cover 3 and disposed on both sides of the rotating body 12.

On the bottom surface of the manhole cover 3, a pair of support brackets 58 are attached in a line on both sides of the installation hole 6.

A fitting hole 60 is formed in the support bracket 58 and the locking shaft 16 is fitted in the fitting hole 60 and supported.

The locking shaft 16 is connected to the locking cam 14 via the guide member 18 and is made of a length that can be received in the locking groove 9 formed in the locking projection 8 of the manhole support 5. [

The locking shaft 16 is moved laterally by the movement of the guide member 18 and the locking cam 9 and is accommodated and released in the locking groove 9.

An elastic spring 42 is fitted on the outer circumferential surface of the locking shaft 16 interposed between the pair of support brackets 58. The resilient spring 42 is engaged and fixed to the outer circumferential surface of the locking shaft 16 by the engaging pin 46.

The resilient spring 42 is resiliently movable when the locking shaft 16 is moved to the left and right and is received and released in the locking groove 9.

At the end of the locking shaft 16, a guide member 18 which engages with the locking cam 14 is engaged.

As shown in FIG. 3, the guide member 18 may be formed in a 'C' shape having one side formed with an opening 36.

Inside the guide member 18, a guide groove 32 through which the guide protrusion 26 moves is formed.

The guide groove 32 is formed in a shape corresponding to the guide protrusion 26, but may be formed in the form of an inclined straight line in the embodiment of the present invention.

In this case, the inclination of the guide groove 32 can be formed such that the guide projection 26 of the locking cam 14 moves and the locking shaft 16 can be received in and released from the locking groove 9.

At both ends of the opening 36 of the guide member 18 are formed further engaging projections 34 to be engaged with the engaging grooves 28 to be engaged with the locking cams 14.

The engaging projection 34 is configured to be movable along the engaging groove 28 when the locking cam 14 is vertically reciprocating.

Now, a method of operating the manhole locking device 10 according to the embodiment of the present invention will be described with reference to FIG.

When the user wishes to lock the manhole cover 3 to the manhole cover 5, the user rotates the rotary key 20 to the keyhole 38 of the rotary plate 22 exposed by the installation hole 6 of the manhole cover 3 Insert and rotate clockwise.

At this time, the rotation of the rotating body 12 causes the locking cam 14 to move upward along the guide groove 32 of the guide member 18 and protrude from the guide member 18, whereby the locking shaft 14 Is pushed to the outside and the end portion is received in the locking groove 9 and the manhole cover 3 is locked to the manhole cover 5.

In order to separate the manhole cover 3 from the manhole cover 5, the rotary key 20 is inserted into the keyhole 38 of the rotary plate 22 exposed by the installation hole 6 of the manhole cover 3 Insert and rotate counterclockwise.

At this time, by the rotation of the rotating body 12, the locking cam 14 moves downward along the guide groove 32 of the guide member 18 to be in line with the guide member 18, 16 are detached from the locking groove 9 and the manhole cover 3 is unlocked to the manhole cover 5.

According to the above-described structure, the manhole lock apparatus 10 according to the embodiment of the present invention can be easily locked and unlocked by a user with a simple structure, and it is possible to prevent the manhole cover 3 from being stolen, It is possible to prevent the manhole cover 3 from being detached by the external force.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

2: Manhole 3: Manhole cover
5: manhole cover 8: hanging jaw
9: locking groove 10: manhole locking device
12: Rotor 14: Locking cam
16: locking shaft 18: guide member
20: rotation key 22:
24: rotating shaft 26: guide projection
32: guide groove 38: keyhole
50: key plate 53: key projection

Claims (10)

A locking device for fixing a manhole cover to a manhole base,
A rotating body coupled to the center of the bottom of the manhole cover;
A locking cam formed at both ends thereof with a guide protrusion and coupled to a rotating shaft of the rotating body;
A locking shaft coupled to the bottom of the manhole cover and disposed on both sides of the rotating body;
And a guide member coupled to an end of the locking shaft and having a guide groove formed therein for guiding the guide protrusion,
The guide protrusion is moved along the guide groove by the rotation of the rotating body and the locking cam is vertically reciprocated and the locking shaft is moved to the right and left to be accommodated and released in the locking groove formed in the inner wall surface of the manhole support Manhole lock. The method according to claim 1,
Wherein the rotary shaft is coupled to a rotary plate having a keyhole formed therein and the rotary plate is installed to be exposed to the outside of the manhole cover through the installation hole. 3. The method of claim 2,
And a rotary key fitted to the keyhole to rotate the rotating body. The rotary key includes a wheel-shaped handle, a key plate having a key projection fitted to the keyhole, and a handle attached to the upper and lower ends of the key plate Manhole locking device consisting of one swivel rod. 3. The method of claim 2,
Wherein a pair of support brackets are formed on the bottom surface of the manhole cover with fitting holes formed on both sides of the installation hole and the locking shaft is fitted and supported by the fitting holes. 5. The method of claim 4,
Wherein an elastic spring is fitted to an outer circumferential surface of a locking shaft interposed between the pair of support brackets and a locking pin for fixing the elastic spring is fastened to the locking shaft. The method according to claim 1,
Wherein the guide member is formed with an opening at one side thereof and a guide groove is formed at an inner side thereof to receive the guide protrusion, and coupling protrusions are formed at both ends of the opening. The method according to claim 6,
Wherein the locking cam is formed with an engaging groove in which the engaging projection is fitted adjacent to the guide projection, and the engaging projection is configured to be guided along the engaging groove in accordance with the vertical reciprocating motion of the locking cam. The method according to claim 1,
Wherein a snap ring and a fastener for preventing the locking cam from separating are fastened to upper and lower sides of the locking cam on the rotating shaft of the rotating body. The method according to claim 1,
And a packing member is mounted at an end of the manhole cover which is in contact with the manhole cover. The method according to claim 1,
Wherein the locking cam is formed with a shaft hole into which the rotating shaft is inserted, and a thread line corresponding to the body of the rotating shaft and the shaft hole is formed.
KR1020130013091A 2013-02-05 2013-02-05 Apparatus for locking manhole cover KR20140100624A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180024978A (en) * 2016-08-31 2018-03-08 주식회사 기남금속 Water-proofing in the lid of the manhole
KR101995945B1 (en) * 2019-01-15 2019-07-03 (주)유비커머스 Easily closed manhole cover
KR102162318B1 (en) * 2019-07-06 2020-10-06 김경호 manhole that is easy to close and close
KR102183570B1 (en) * 2020-10-19 2020-11-26 (주)대명엔지니어링 The safety unit for the ground borehole protection
KR102187299B1 (en) * 2020-06-04 2020-12-04 김수겸 Manhole iron lid with opening and shutting device
KR102259033B1 (en) * 2021-04-13 2021-06-01 주식회사 호남금속 Manhole cover with automatically adjustable lock and lift
KR102263386B1 (en) * 2020-07-10 2021-06-09 김기창 Locking apparatus for manhole cover locking
KR102576322B1 (en) * 2022-05-26 2023-09-18 김태원 Locking device of manhole cover
KR102607984B1 (en) * 2022-09-15 2023-12-06 김태원 Locking device of manhole cover

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180024978A (en) * 2016-08-31 2018-03-08 주식회사 기남금속 Water-proofing in the lid of the manhole
KR101995945B1 (en) * 2019-01-15 2019-07-03 (주)유비커머스 Easily closed manhole cover
KR102162318B1 (en) * 2019-07-06 2020-10-06 김경호 manhole that is easy to close and close
KR102187299B1 (en) * 2020-06-04 2020-12-04 김수겸 Manhole iron lid with opening and shutting device
KR102263386B1 (en) * 2020-07-10 2021-06-09 김기창 Locking apparatus for manhole cover locking
KR102183570B1 (en) * 2020-10-19 2020-11-26 (주)대명엔지니어링 The safety unit for the ground borehole protection
KR102259033B1 (en) * 2021-04-13 2021-06-01 주식회사 호남금속 Manhole cover with automatically adjustable lock and lift
KR102576322B1 (en) * 2022-05-26 2023-09-18 김태원 Locking device of manhole cover
KR102607984B1 (en) * 2022-09-15 2023-12-06 김태원 Locking device of manhole cover

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