KR20070068968A - A manhole cover - Google Patents

Abstract

A manhole cover is provided to prevent accidents caused by the unnecessary opening of a manhole and to prevent various equipment installed in a manhole from being lost or stolen by locking an auxiliary cover with a primary locking projection and a secondary locking projection. The manhole cover comprises a cover fixing ring(10) fixed to the top of a manhole and provided with an upper hanging projection(11) and a lower hanging projection(12), a main cover(20) put on the upper hanging projection to close a manhole, and an auxiliary cover(30) put on the lower hanging projection and provided with many through holes(31), wherein a primary locking projection(13) projected inward and provided with a primary through hole(131) is formed on the lower part of the cover fixing ring and a secondary locking projection(33) provided with a secondary through hole(331) corresponding to the primary through hole is formed on the lower part of the auxiliary cover to lock the auxiliary cover to the cover fixing ring by a lock.

Description

Manhole cover {a manhole cover}

1 is an exploded perspective view showing an embodiment of the present invention.

Figure 2 is a plan view showing a coupled state of FIG.

Figure 3 is a longitudinal cross-sectional view showing a coupling state of FIG.

Figure 4 is an exploded perspective view showing another embodiment of the present invention.

Figure 5 is a longitudinal cross-sectional view showing a coupling state of FIG.

Figure 6 is an exploded perspective view showing an example of a conventional manhole cover.

※ Explanation of codes for main parts of drawing

10: cover fixing ring

   11: upper locking jaw

      111: support protrusion 112: locking protrusion

   12: lower locking jaw

   13: first locking protrusion 131: first through hole

20: main cover

   21: engaging groove 22: through hole

   23: fastener

30: auxiliary cover

   31: through hole 32: insertion groove

   33: the second locking projection 331: the second through hole

   34: sensor fixing groove 35: fastening hole

40: manhole information sensor

50: Tightening Screw

The present invention relates to a manhole cover, and more particularly, to a manhole cover that the auxiliary cover coupled to the upper portion of the manhole is locked to the cover fixing ring to prevent unnecessary personnel from entering the inside of the manhole.

In general, when various wires and communication lines are installed in the basement or when water and sewage are installed, a manhole is installed so that the workforce enters the underground structure from the ground for maintenance of the underground facilities. The cover is installed to prevent the accident of the vehicle or person falling into the inside of the manhole.

Looking at one example of such a manhole cover through Figure 6, the main cover 200 for closing the manhole is fixed to the upper side of the cover fixing ring 100 coupled to concrete or asphalt to form the ground, the main cover ( The auxiliary cover 300 having a plurality of through holes 301 formed on the lower side of the 200 is fixed.

The cover fixing ring 100 is formed in a ring shape, and the upper catching jaw 101 and the lower catching jaw 102 are formed along the inner circumferential surface, so that the main cover 200 and the auxiliary cover 300 respectively have an upper catching jaw ( 101 and the lower locking jaw 102 to be fixed, in particular, the upper locking jaw 101 is formed with an insertion groove 103, the outer side of the auxiliary cover 300 and the insertion groove 103 and A corresponding insertion protrusion 302 is formed so that the insertion protrusion 302 of the auxiliary cover 300 is laterally rotated after passing through the insertion groove 103, between the upper locking jaw 101 and the lower locking jaw 102. The auxiliary cover 200 is inserted into the space so as to be supported up and down.

However, the main cover and the auxiliary cover as described above are not provided with a separate locking means after being simply inserted into the cover fixing ring, the main cover and the auxiliary cover may be lost or stolen, accordingly provided in the manhole There was also a problem that a safety accident occurs such as various equipment is lost or a passenger falls into the manhole.

In addition, as the main cover is placed on the upper locking jaw opened in the vertical direction, the main cover is deformed due to the change in temperature and the load, and thus the main cover is shaken at the upper locking jaw. In some cases, the driver may feel anxious due to the noise generated by the shaking of the main cover.

Accordingly, the present invention has been made in order to solve the conventional problems as described above, the object is that the auxiliary cover coupled to the upper part of the manhole is fixed to the cover fixing ring to prevent unnecessary personnel from entering the interior of the manhole A manhole cover is provided.

In addition, an object of the present invention is to prevent the shaking of the main lid when various vehicles and equipment passes to the upper side of the main lid.

In addition, an object of the present invention is to ensure that the manhole information sensor for storing various information inside the manhole is firmly fixed without being exposed to the outside.

In addition, an object of the present invention is to ensure that the main cover and the auxiliary cover is integrally and firmly coupled.

In addition, an object of the present invention is to ensure that the main cover is always coupled to the cover fixing ring of a constant position.

In order to achieve the above object, the present invention is a cover fixing ring which is fixed to the upper surface of the manhole corresponding to the ground and the upper locking jaw and the lower locking jaw, and the main cover mounted on the upper locking jaw to close the manhole; In the cover for the manhole consisting of an auxiliary cover mounted to the lower locking jaw and formed with a plurality of through holes, a first locking projection protruding inward to the inside of the cover fixing ring formed with a first through hole is formed, the auxiliary cover A second locking protrusion having a second through hole corresponding to the first through hole is formed on the lower surface of the bottom surface, and the auxiliary cover is configured to be locked to the cover fixing ring by a normal lock.

In addition, the upper locking jaw is characterized in that the inner surface is formed to be inclined to the upper light lower narrow, inclined to correspond to the outer surface of the upper locking jaw on the outer surface of the main cover.

In addition, a sensor fixing groove is formed on the upper surface of the auxiliary cover, and the manhole information sensor for storing information of various pipes and wires inside the manhole, and measuring and storing the quantity and water pressure of the water supply and drainage is inserted into the sensor fixing groove. It features.

In addition, a fastening hole corresponding to each other is formed in the central portion of the main cover and the auxiliary cover is characterized in that the main cover and the auxiliary cover is configured to be integrally fixed by the fastening screw.

In addition, at least one locking projection is formed on the inner surface of the upper locking jaw, characterized in that the locking groove corresponding to the locking projection is formed on the outer surface of the main cover.

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

1 is an exploded perspective view showing an embodiment of the present invention, Figure 2 is a plan view showing a coupling state of Figure 1, Figure 3 is a longitudinal cross-sectional view showing a coupling state of Figure 1, the present invention as shown in the manhole The cover fixing ring 10 is fixed to the top of the top and the upper locking jaw 11 and the lower locking jaw 12 is formed, and the main cover 20 mounted on the upper locking jaw 11 to close the manhole ) And a manhole cover, which is mounted on the lower locking jaw 12 and includes a sub cover 30 having a plurality of through holes 31, protrudes inward to a lower portion of the cover fixing ring 10. A first locking protrusion 13 having a first through hole 131 is formed, and a second through hole 331 corresponding to the first through hole 131 is formed on a lower surface of the auxiliary cover 30. A locking protrusion 33 is formed so that the auxiliary cover 30 is locked to the cover fixing ring 10 by a normal lock or the like. All.

The cover fixing ring 10 is formed at a height corresponding to the ground while supporting the load such as a vehicle passing through the ground so that the outer surface is fixed to concrete or asphalt that is placed on the ground and the upper surface is positioned to correspond to the ground. In addition to preventing safety accidents caused by the manhole during the passage of the back, and forming the upper locking jaw (11) to which the main cover 20 is fixed and the lower locking jaw (12) to which the auxiliary cover 30 is fixed to the main The cover 20 and the auxiliary cover 30 is firmly fixed to the cover fixing ring 10.

The main cover 20 is a cover that closes the manhole, and is typically formed of a metal material having a strong strength to support a heavy load, and fixed to a height corresponding to the ground on the cover fixing ring 10 to cover the main cover 20. ) To prevent the vehicle and people from falling out or foreign matters from entering.

The auxiliary cover 30 is formed to a diameter smaller than the diameter of the main cover 20 is fixed to the lower side of the main cover 20, the man in the open state of the main cover 20 in the manhole Various pipes and equipment for maintenance of the manhole are passed through the inside of the manhole while not falling out, and during flooding, a plurality of through-holes 31 are formed to allow the cold water inside the manhole to be discharged to the outside.

The upper locking jaw 11 is formed to have a length corresponding to the thickness of the main cover 20 to close the manhole and protrudes into the cover fixing ring 10 so that the outer periphery of the lower surface of the main cover 20 While being placed on the upper surface of the jaw 11 is fixed by the load of the main cover 20 itself.

In addition, the upper locking jaw (11) forms at least one or more support protrusions (111) protruding into the inner side of the manhole, and forms an insertion groove (32) corresponding to the protrusion on the outer circumferential surface of the auxiliary cover (30) After the insertion groove 32 of the auxiliary cover 30 is inserted through the support protrusion 111, the auxiliary cover 30 is rotated laterally so that the upper surface of the auxiliary cover 30 is caught by the upper locking jaw 11. It is desirable to be fixed.

The lower locking jaw 12 is to support the lower surface of the auxiliary cover 30, is formed spaced apart to correspond to the height of the auxiliary cover 30 on the lower side of the upper locking jaw (11), the upper locking jaw Formed to be smaller than the inner diameter of the (11) is passed through the upper locking jaw (11) is inserted into the lower cover 30 is fixed to the lower locking jaw (12) while the auxiliary cover 30 is falling into the inside of the manhole To prevent it.

The first locking protrusion 13 is to allow the auxiliary cover 30 to be locked to the cover fixing ring 10, is formed to protrude in the inner side of the manhole in the lower portion of the cover fixing ring 10, A first through hole 131 penetrates laterally to form a contact with the second locking protrusion 33 to be described later.

The second locking protrusion 33 protrudes from the lower surface of the auxiliary cover 30 and forms a second through hole 331 corresponding to the first through hole 131 to form a first through hole 131. ) And the second through-hole 331 is in contact with the normal lock, such as to be inserted through so that the auxiliary cover 30 is locked to the cover ring (10).

Accordingly, after the insertion groove 32 corresponds to the support protrusion 111 and the auxiliary cover 30 is pushed downward of the cover fixing ring 10, the outer circumference of the lower surface of the auxiliary cover 30 is lowered. When the auxiliary cover 30 is rotated laterally in this state, the second locking protrusion 33 is locked at the position where the first locking protrusion 13 is in contact with the locking jaw 12, and the ordinary lock or the like is fixed. Inserted into the first and second through-holes 22 so that the auxiliary cover 30 is locked to the cover fixing ring 10, the safety accidents due to unauthorized intrusion into the manhole inside the manhole and provided inside the manhole It is possible to prevent theft and loss of various equipment.

In addition, a locking protrusion 112 protruding outward is formed on an inner surface of the upper locking jaw 11, and a locking groove 21 corresponding to the locking protrusion 112 is formed on an outer surface of the main cover 20. The main cover 20 is prevented from rotating laterally in the state where the main cover 20 is placed on the upper catching jaw 11, and the main cover 20 and the cover fixing ring 10 by unnecessary rotation of the main cover 20. It is preferable to prevent the play between the occurrence of noise and to prevent the generation of noise during the passage of the vehicle, or to prevent foreign matter from flowing into the manhole.

In addition, the upper locking jaw (11) is formed to be inclined so that the inner surface is inclined to the upper and lower strait, and the outer surface of the main cover 20 is formed to be inclined to correspond to the inner surface of the upper locking jaw (11), the cover fixing ring The contact area between the main cover 20 and the 10 is maximized to more effectively prevent foreign matter from flowing through the side gap of the main cover 20, and to prevent rattling of the main cover 20, It is desirable to facilitate the withdrawal of the cover 20.

In addition, a sensor fixing groove 34 is formed on the upper surface of the auxiliary cover 30, and information on various equipment, piping, wiring, etc. installed in the manhole in the sensor fixing groove 34, and the quantity of water and sewage And by inserting and fixing the manhole information sensor 40 for storing information such as water pressure, it is preferable to prevent damage and theft as the manhole information sensor 40 is exposed to the outside of the manhole.

In addition, the main cover 20 corresponding to the sensor fixing groove 34 is formed with a through hole 22 penetrating up and down through the through hole 22 through the probe rod without opening the main cover 20. It is preferable to insert so that the contents stored in the manhole information sensor 40 can be easily read.

Figure 4 is an exploded perspective view showing another embodiment of the present invention, Figure 5 is a longitudinal cross-sectional view showing a combined state of Figure 4, in this embodiment corresponds to the main cover 20 and the auxiliary cover 30 up and down The fastening holes 23 and 35 are formed, and the fastening screws 50 are coupled to the fastening holes 23 and 35 so that the main cover 20 and the auxiliary cover 30 are integrally coupled to each other.

Accordingly, the main cover 20 is more firmly fixed to the manhole to more effectively prevent the shaking of the manhole, as well as to obtain the effect of preventing theft of the main cover 20.

As described above, in the present invention, the mandrel cover coupled to the upper part of the manhole is fixed to the cover fixing ring by the first locking protrusion and the second locking protrusion to prevent unnecessary personnel from entering the inside of the manhole. By providing a, not only to prevent safety accidents due to unnecessary opening of the manhole, it will have the effect of preventing the loss and theft of various equipment installed inside the manhole.

In addition, the present invention by forming the inner side of the upper locking jaw and the outer side of the main lid inclined to prevent the shaking of the main lid when various vehicles and equipment passes to the upper side of the main lid, the manhole by shaking the main lid Not only can it prevent the breakage of, but also has the effect of preventing noise caused by the vehicle passing through the manhole and relieving anxiety of the driver.

In addition, the present invention by fixing the manhole information sensor that stores various information inside the manhole without being exposed to the outside, thereby preventing the breakage of the manhole information sensor to store accurate information, without opening the manhole cover It will have the effect of checking the information.

In addition, the present invention is to form a fastening hole in the central portion of the main cover and the auxiliary cover so that the main cover and the auxiliary cover is firmly coupled to have an effect that can effectively prevent the shaking of the main cover.

In addition, the present invention forms a locking projection and a locking groove so that the main cover is coupled to the cover fixing ring at a constant position, thereby preventing the main cover from being broken while rotating laterally, and maintaining the main cover at a constant direction. It will have the effect of being fixed in one state.

Claims (5)

The cover fixing ring 10 is fixed to the top of the manhole corresponding to the ground and the upper locking jaw (11) and the lower locking jaw (12) formed, and the main cover is mounted on the upper locking jaw (11) to close the manhole ( In the cover for the manhole consisting of 20, and the auxiliary cover 30 mounted on the lower locking jaw 12, a plurality of through holes 31, A first locking protrusion 13 protruding inwardly in a lower portion of the cover fixing ring 10 and having a first through hole 131 formed thereon is formed on the bottom surface of the auxiliary cover 30. A second locking protrusion 33 having a second through hole 331 corresponding to 131 is formed, and the auxiliary cover 30 is configured to be locked to the cover fixing ring 10 by a lock. Manhole cover. The method of claim 1, The upper catching jaw 11 is a manhole cover, characterized in that the inner surface is formed to be inclined to the upper light lower narrow, the outer surface of the main cover 20 is inclined to correspond to the inner surface of the upper catching jaw (11). . The method of claim 2, The sensor fixing groove 34 is formed on the upper surface of the auxiliary cover 30, The manhole cover, characterized in that the manhole information sensor 40 for storing the information of the various pipes and wires inside the manhole, and measures and stores the water quantity and water pressure of the water supply and drainage is inserted into the sensor fixing groove (34). The method of claim 1, Fastening holes 23 and 35 corresponding to each other are formed in the main cover 20 and the auxiliary cover 30 so that the main cover 20 and the auxiliary cover 30 are integrally fixed by the fastening screw 50. Manhole cover, characterized in that configured. The method according to any one of claims 1 to 4, At least one locking protrusion 112 is formed on an inner surface of the upper locking jaw 11, and a locking groove 21 corresponding to the locking protrusion 112 is formed on an outer surface of the main cover 20. The cover for the manhole characterized by the above.

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