KR20130067975A - Device for fixing of manhole cover - Google Patents

Device for fixing of manhole cover Download PDF

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Publication number
KR20130067975A
KR20130067975A KR1020110135071A KR20110135071A KR20130067975A KR 20130067975 A KR20130067975 A KR 20130067975A KR 1020110135071 A KR1020110135071 A KR 1020110135071A KR 20110135071 A KR20110135071 A KR 20110135071A KR 20130067975 A KR20130067975 A KR 20130067975A
Authority
KR
South Korea
Prior art keywords
manhole cover
locking device
manhole
support
present
Prior art date
Application number
KR1020110135071A
Other languages
Korean (ko)
Inventor
남두호
Original Assignee
한국주철산업주식회사
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 한국주철산업주식회사 filed Critical 한국주철산업주식회사
Priority to KR1020110135071A priority Critical patent/KR20130067975A/en
Publication of KR20130067975A publication Critical patent/KR20130067975A/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
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/14—Geometrical or physical properties resilient or elastic
    • E02D2200/146—Springs
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06—Gully gratings
    • E03F2005/063—Gully gratings with slidable or rotatable locking elements

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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 manhole cover locking device, and more particularly, a manhole that prevents theft of the manhole cover because the locking device and the control unit are not exposed to the outside while the locking device is locked and released by the structure of the manhole cover is raised and lowered The lid relates to a rotary lock.
Manhole cover rotary locking device according to the present invention is a manhole cover provided with a bolt rod vertically in the bottom center; Located in the lower portion of the manhole cover is formed through the screw hole in the center of the horizontal support portion is fastened to the bolt rod of the manhole cover; A latch installed at an upper portion of the support portion, one end of which is installed to move in a vertical direction, and the other end of which is placed on the edge of the support portion by its own weight; And a manhole support having a plurality of upper seating jaws and a lower seating jaw formed so that the manhole cover and the support seat are seated, and a groove into which the latch is inserted. .
The present invention made of such a structure is a manhole cover rotary locking device according to the present invention made of the above structure is easy to operate because the locking device is operated by a method of rotating the manhole cover without being easily stolen because the operation portion is not exposed to the outside It can work.

Description

Manhole cover rotary lock {Device for Fixing of manhole cover}

The present invention relates to a manhole cover locking device, and more particularly, a manhole that prevents the theft of the manhole cover is not exposed to the outside and the locking device and the control unit while the locking device is locked and released by the structure of the manhole cover is raised and lowered The lid relates to a rotary lock.

In general, the manhole cover is seated on the top of the manhole support buried in the ground to prevent pedestrians or vehicles from falling into the manhole when not in use. In recent years, by installing a locking device to prevent the opening of the manhole cover due to the operation of the vehicle or the water pressure in the manhole to prevent safety accidents due to opening the manhole cover.

As an example, Patent No. 10-0767630 installs a locking device on a manhole cover. Looking at the structure, the manhole cover and the manhole cover are formed in the same vertical line bolt hole on which the manhole cover is seated. It is provided with an H-type locking means that is engaged and released on the upper surface of the manhole cover and the lower portion of the seating jaw as it is inserted and rotated. The manhole cover locking device having such a structure is locked or released as the locking means rotates by 90 °, thereby preventing the manhole cover from being opened. However, such a manhole cover locking device has a disadvantage that anyone can easily open the exposure to the outside. This is because the manhole cover is made of cast iron material, the recycling value is large, the problem of being often lost by being subjected to theft.

In addition, Patent No. 10-0522295 is to install a locking device on the manhole cover, but the manhole cover is in close contact with the manhole support to serve as a tightening function. The locking disc is formed eccentrically, so that the locking disc is selectively locked to the lower part of the seating jaw according to the rotation of the clamp, and the upper surface of the locking disc is formed to be inclined so that the manhole cover is pulled downward when the locking disc is caught. Is done. The manhole cover locking device having such a structure prevents the manhole cover from being opened while the manhole cover is forced to the manhole support, thereby preventing noise, but the top of the clasp must be exposed to the outside for the operation of the clamp. Anyone can easily open if there is an extension of the back, there is a problem that is easily stolen.

[Patent Document 1] KR Patent No. 10-0767630 (2007.10.10) [Patent Document 2] KR Patent No. 10-0522295 (2005.10.15)

Accordingly, an object of the present invention is to provide a manhole cover rotary locking device which is not easily stolen according to the installation of the manhole cover locking device, but the locking device and the control unit are not exposed to the outside and thus the structure of the locking device cannot be predicted.

Manhole cover rotary locking device according to the present invention for achieving the above object,

A manhole cover provided with a bolt rod vertically at the center of the bottom;

Located in the lower portion of the manhole cover is formed through the screw hole in the center of the horizontal support portion is fastened to the bolt rod of the manhole cover;

A latch installed at an upper portion of the support portion, one end of which is installed to move in a vertical direction, and the other end of which is placed on the edge of the support portion by its own weight; And

A manhole support having a plurality of upper seating jaws and a lower seating jaw formed therein so as to seat the manhole cover and the supporting part, and a groove part into which a latch is inserted; .

In addition, the elevating plate is provided between the manhole cover and the supporting portion, and the one end of the elevating plate and the latch is horizontally coupled, characterized in that the compression spring is installed between the supporting portion and the elevating plate.

In addition, the upper end of the vertical rod and the one end of the clasp vertically penetrating through the support portion is axially coupled, characterized in that the compression spring is installed so that the vertical rod is elevated.

The manhole cover rotary locking device according to the present invention having the structure as described above has an effect that can be easily operated because the locking device is operated by a method of rotating the manhole cover without being easily stolen because the operation unit is not exposed to the outside.

In addition, when the inner lid is used as a supporting part, since the inner lid is coupled to the lower part of the manhole cover, there is an effect that the supporting part and the manhole cover can be seated at a time, and a groove for inserting the lever is required at the edge. There is no beautiful appearance.

In addition, since the structure constituting the locking device is located in the manhole, it is completely protected from the outside and does not break, so that it can be used for a long time.

1 is an exploded perspective view showing the structure of the manhole cover rotary locking device according to the present invention.
Figure 2a is a cross-sectional view showing a state in which the manhole cover rotary locking device is unlocked according to the present invention.
Figure 2b is a cross-sectional view showing a state in which the manhole cover rotary locking device locked according to the present invention.
Figure 3a, 3b is an illustration showing a lifting plate structure of the manhole cover rotary locking device according to the present invention.
Figure 4a, 4b is a cross-sectional view showing the structure of the manhole cover rotary locking device according to another embodiment of the present invention.

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

Figure 1 is an exploded perspective view showing the structure of the manhole cover rotary locking device according to the present invention, Figure 2a is a cross-sectional view showing a state in which the manhole cover rotary locking device is unlocked, Figure 2b is in the present invention Figure 3 is a cross-sectional view showing a state in which the manhole cover rotary locking device is locked, Figure 3a, 3b is an exemplary view showing a lifting plate structure of the manhole cover rotary locking device according to the present invention.

As shown in these drawings, the manhole cover rotary locking device according to the present invention has a manhole cover 10 provided with a bolt rod vertically in the center of the bottom, and is located at the bottom of the manhole cover, and a screw hole is formed in the center of the manhole cover. Support portion 40 is fastened to the bolt rod, and installed on the upper portion, but one end is installed so as to move in the vertical direction, the other end is mounted on the edge of the supporting portion by its own weight, and the upper part so that the manhole cover and the supporting portion is seated The seating jaw and the lower seating jaw is formed in multiple stages and consists of a manhole support 50 formed a groove portion is inserted into the upper seating jaw.

The manhole cover 10 is integrally formed with a bolt rod 11 protruding downwardly in the center of the bottom. The bolt rod 11 has a male screw thread formed at its outer circumference, and a pressing part 12 having an extended diameter is partially formed at an upper portion of the bolt rod 11 to prevent the deformation of the bolt rod 11. The contact with the elevating plate 20 is made.

The support portion 40 is formed in a plate shape to be provided in the lower portion of the manhole cover 10, the center is formed through the screw hole 41 is coupled to the bolt rod 11 of the manhole cover 10 vertically do. Here, the center of the support portion 40 extends to the lower portion so that the screw hole 41 has a sufficient length so that a stable coupling is made when the bolt rod 11 is fastened with the bolt rod 11. And the bottom of the support portion 40 to prevent the deformation of the bolt rod 11 by forming a support projection protruding longer than the length of the bolt rod 11 so that the bolt rod 11 does not touch the floor when placed on the floor do. The support portion 40 may be formed to correspond to the lower portion of the clasp 30, or may be formed of a disc as shown in the figure. Note that it can be used to replace the inner lid when forming a disc.

The elevating plate 20 is provided between the manhole cover 10 and the base 40, and the clasps 30 are installed at both ends of the elevating plate 20. The elevating plate 20 is formed of a horizontal plate, a hole 21 through which the bolt rod 11 penetrates is formed in the center thereof, and horizontal arms 22 protrude from both sides. The lower portion of the elevating plate 20 is provided with a compression spring 23 is always in close contact with the pressing portion 12 formed on the bottom surface of the manhole cover 10 by always lifting the elevating plate 20 upwards. do. Therefore, when the manhole cover 10 is elevated, the elevating plate 20 is lifted by the compression spring 23, and when the manhole cover 10 is lowered, the compression spring 23 is compressed while the elevating plate 20 is lowered. .

The rod-shaped clasps 30 are coupled to both arms 22 of the elevating plate 20, respectively. The shaft 31 is horizontally coupled between the clasp 30 and the arm 22 so that the clasp 30 freely rotates from the arm 22 in the vertical direction. The other end of the clasp 30 coupled to the shaft 31 is positioned downward by its own weight. As the supporting part 40 is positioned at the lower part of the clasp 30, the end of the clasp 30 is supported by the supporting part 40. It is placed on the upper surface of the inclined state. At this time, the end of the clasp 30 to be positioned at the edge of the base 40. When the elevating plate 20 is lowered by such a structure, the portion coupled to the shaft 31 of the clasp 30 descends while the end thereof is mounted on the support 40 so that the lower plate 20 cannot be lowered. 40 protrudes to the edge. On the contrary, when the elevating plate 20 moves up and down, the portion coupled to the shaft 31 moves up and down, and the clasp 30 in the horizontal state is inclined and slides toward the center of the base 40.

As described above, the elevating plate 20 and the clasp 30 may be formed at equal intervals in three directions or at equal intervals in four directions, as shown in FIGS. 3A and 3B. Put it.

On the other hand, the inner periphery of the manhole support 50 is formed with two seating jaw (51) (52). That is, an upper seating jaw 51 in which the manhole cover 10 is seated is formed in the upper part, and a lower seating seat 52 in which the base 40 is seated in the lower part is formed. Here, the lower seating jaw 52 is formed with a smaller diameter than the upper seating jaw 51 so that when the manhole cover 10 to which the support 40 is coupled is seated on the manhole support 50, the support 40 is first. The manhole cover 10 is seated on the upper seating jaw 51 by being seated on the lower seating jaw 52 and then rotating and lowering the manhole cover 10.

In addition, the upper portion of the lower seating jaw 52 of the manhole support 50 forms a groove portion 53 recessed in the lateral direction so that the latch 30 is formed when the latch 30 protrudes toward the edge of the support portion 40. 53).

The effect of the manhole cover rotary locking device according to the present invention having the above structure will be described in detail.

When the manhole cover 10 of the present invention is intended to be seated and fixed to the manhole support 50, the manhole cover 10 is lifted and seated on the manhole support 50. At this time, the supporting portion 40 provided in the lower portion of the manhole cover 10 is seated on the lower seating jaw 52 and the manhole cover 10 is in a state protruding upward from the ground. When the manhole cover 10 is rotated in this state, the manhole cover 10 is gradually lowered by the structure coupled with the support 40 and the spiral. In this process, the pressing part 12 is lowered to press the elevating plate 20, and the elevating plate 20 is lowered by the pressing part 12 and at the same time the end of the clasp 30 is positioned horizontally in the manhole It is inserted into the groove portion 53 of the pedestal 50. Along with this, the manhole cover 10 is seated on the upper seating jaw 51 to be flush with the ground to complete the locked state. In this way, the end of the clasp 30 is inserted into the groove portion 53 so that the manhole cover 10 is not opened even when lifted up. In addition, the locking device is not visible to the outside at all, the general public can not predict the structure of the manhole cover 10 is not stolen.

On the contrary, when the manhole cover 10 is to be opened, the manhole cover 10 is rotated in the opposite direction so that the manhole cover 10 is elevated. In this process, the gap between the manhole cover 10 and the base 40 is opened, and the lifting plate 20 is lifted upward by the compression spring 23 and the latch coupled to the lifting plate 20 and the shaft ( At the same time as the 30 is raised and lowered, the terminal slides toward the center of the base 40 to be released from the groove 53 of the manhole support 50 to release the locked state. Lifting the manhole cover 10 in this state is complete opening. If the support portion 40 is replaced by the inner lid has the advantage of opening the manhole cover 10 and the inner lid at the same time by lifting the inner lid also lifts the inner lid as well.

4A and 4B are cross-sectional views illustrating a structure of a manhole cover rotary locking device according to another embodiment of the present invention.

As shown in these figures, a vertical rod 60 is formed at a periphery of the base 40 to penetrate and insert a vertical hole 45 therein. The vertical rod 60 is formed integrally with the head 61 extended on the upper portion thereof and fastens the separation preventing cap 62 at the lower portion thereof. The release preventing cap 62 is formed with a larger area than the hole to prevent the vertical rod 60 from being detached from the hole 45. In addition, a compression spring 63 is installed between the head 61 and the support 40 so that the head 61 always protrudes upward. One end of the rod-shaped clasp 30 is coupled to the head 61 by the shaft 31. The shaft 31 is installed horizontally so that the clasp 30 freely rotates in the vertical direction about the horizontal shaft 31. The other end of the latch 30 is placed on the edge of the support portion 40 by its own weight. And the bottom surface of the manhole cover 10 is formed by protruding the pressing portion 12 at a position corresponding to the vertical rod 60, the manhole cover 10 can be lowered by pressing the head 61 of the vertical rod 60 when descending. Make sure

The manhole cover rotary locking device having such a structure, when the manhole cover 10 rotates and descends, the pressing portion 12 presses the head 61 of the vertical rod 60 to lower the vertical rod 60 and at the same time the head. The clasp 30 coupled to the 61 and the shaft 31 descends and the end thereof protrudes to the edge of the base 40 to be inserted into the groove 53 of the manhole support 50 so that the manhole cover 10 is locked. Is fixed. In this state, when the manhole cover 10 is rotated in the opposite direction, the manhole cover 10 is lifted and the vertical rod 60 is lifted by the compression spring 63, and the one end of the clasp 30 is lifted with the latch ( The end of 30 is spaced apart from the groove portion 53 to release the locked state.

10 manhole cover 11 bolt rod 12 pressing portion
20: lifting plate 21, 45: hole 22: arm
23, 63: compression spring 30: latch 31: shaft
40: support 41: screw hole 50: manhole support
51: upper seating jaw 52: lower seating jaw 53: groove
60: vertical rod 61: head 62: separation prevention cap

Claims (3)

A manhole cover 10 provided with a bolt rod 11 vertically at the bottom center;
A horizontal support portion 40 positioned at a lower portion of the manhole cover 10 and having a screw hole 41 formed in the center thereof and fastened to the bolt rod 11 of the manhole cover 10;
It is installed on the top portion 40, but one end is installed to move in the vertical direction and the other end is latched on the edge of the base portion 40 by its own weight; And
The groove portion 53 is formed by forming the upper seating jaw 51 and the lower seating jaw 52 in multiple stages so that the manhole cover 10 and the base 40 are seated, respectively, and the latch 30 is inserted into the upper seating jaw 52. A manhole support 50 formed laterally; Manhole cover rotary locking device comprising a. According to claim 1, The elevating plate 20 is provided between the manhole cover 10 and the support portion 40 and the one end of the elevating plate 20 and the latch 30 horizontally coupled to the shaft 31 And manhole cover rotary locking device, characterized in that the compression spring 23 is installed between the support portion 40 and the elevating plate (20). The upper part of the vertical rod 60 and the one end of the clasp 30 are horizontally coupled to the shaft 31 and the vertical rod 60 is elevated. Manhole cover rotary locking device characterized in that the compression spring 63 is installed so as to.
KR1020110135071A 2011-12-15 2011-12-15 Device for fixing of manhole cover KR20130067975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110135071A KR20130067975A (en) 2011-12-15 2011-12-15 Device for fixing of manhole cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110135071A KR20130067975A (en) 2011-12-15 2011-12-15 Device for fixing of manhole cover

Publications (1)

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KR20130067975A true KR20130067975A (en) 2013-06-25

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KR1020110135071A KR20130067975A (en) 2011-12-15 2011-12-15 Device for fixing of manhole cover

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150116972A (en) * 2014-04-08 2015-10-19 림이엔지 주식회사 Manhole structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150116972A (en) * 2014-04-08 2015-10-19 림이엔지 주식회사 Manhole structure

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