KR20130041538A

KR20130041538A - Rotation locking type manhole cover assembly

Info

Publication number: KR20130041538A
Application number: KR1020110105853A
Authority: KR
Inventors: 박동현
Original assignee: 주식회사 기남금속
Priority date: 2011-10-17
Filing date: 2011-10-17
Publication date: 2013-04-25

Abstract

The present invention relates to a manhole cover assembly that the lid is firmly coupled to the support frame to prevent the cover from being separated or shaken from the support frame to generate noise, and in detail, a locking jaw is formed on the bottom of the cover. The present invention relates to a rotatable lockable manhole cover assembly in which a locking wing is formed to rotate a lid fitted to a support frame so that the locking jaw is locked to the locking wing so that the lid and the support frame can be firmly coupled.

Description

Rotation locking type manhole cover assembly

The present invention relates to a manhole cover, and more particularly, to a rotatable lockable manhole cover assembly in which the lid is firmly coupled to the support frame to prevent the cover from being separated or shaken from the support frame to generate noise.

More specifically, a locking jaw is formed on the bottom of the lid, and a locking wing is formed on the support frame to rotate the lid fitted to the support frame so that the locking jaw is caught by the locking wing so that the lid and the support frame can be firmly coupled. A manhole cover assembly.

In general, the entrance of the underground structure, that is, the underground for water, sewage or communication facilities is provided with a manhole as a structure for access to the outside.

Such a manhole typically includes a manhole body having a predetermined accommodation space and a lid installed on top of the manhole body to support a manhole cover below and a lid detachably installed on the pedestal.

These manholes are mainly installed on roads without buildings (india or roadways) to facilitate maintenance, and people or vehicles passing through the roads step on or pass through them.

When a person or person passes through a road where a manhole is installed, the manhole is loose when the user presses on the manhole cover, and the manhole is severely damaged by the impact of the vehicle passing through the manhole. There was a problem with the vehicle falling out.

In order to solve this problem, a manhole cover with a locking function or a locking function for preventing the lid from being detached from the supporting frame has been developed and provided.

An example of a manhole cover provided with such a locking function is Utility Model Registration No. 0225637.

As shown in FIG. 6, the manhole support frame 110 and a manhole cover 120 that are detachably covered and installed inside the upper end of the manhole support frame 110 are inserted into the side surface of the manhole cover 120. Locking grooves 124 each having a portion 122 and a locking portion 123 are formed at predetermined intervals, and a locking protrusion corresponding to the locking groove 124 is formed on the upper inner surface 111 of the manhole support frame 110. Each 112 is formed and configured.

However, the conventional manhole cover as described above is fixed by a locking projection formed in the manhole support frame, and thus the locking projection and the locking groove are formed in a narrow area, so the strength is weakened, so that a heavy load such as a large truck is repeatedly applied. Not only there is a possibility of easy breakage, there was a lot of difficulties in fixing the lock groove of the manhole cover fit to the lock projection of the manhole support frame.

The present invention has been developed to solve the problems of the prior art as described above, the lid is firmly coupled to the support frame is a rotatable lock-type manhole cover assembly that can prevent the lid is separated or shaken from the support frame to generate noise It aims to provide.

In particular, the present invention forms a locking jaw on the bottom of the lid, the locking frame is formed on the support frame by rotating the lid fitted to the support frame to lock the locking jaw to the locking wing to enable the lid and the support frame to be firmly coupled It is an object to provide an expression manhole cover assembly.

Rotationally-lockable manhole cover assembly according to the present invention for achieving this object is a manhole connected to the sewer pipe, the support frame provided with a locking blade is formed on the upper end of the manhole and the through hole through which the following locking jaw penetrates; The locking jaw is formed on the bottom of the locking wing is characterized in that it comprises a lid fixed to the support frame by the locking jaw is caught by the locking blade by rotating after passing through the through hole.

The rotatable lock manhole cover assembly according to the present invention is installed by rotating as described above so that the locking jaw can be caught by the locking wing, and a tool for rotating the lid is inserted into the upper surface of the lid so that the lid can be rotated more easily. It is desirable to form a tool insertion groove.

In addition, it is preferable to form an inclined surface on the bottom surface of the locking blade toward the inner side from the through-hole through which the locking jaw penetrates in order for the locking jaw to be firmly attached to the locking blade more firmly so that the lid does not shake.

The present invention forms a locking jaw to protrude to the bottom of the lid as a locking means, and integrally formed a locking wing on the inner circumferential surface of the support frame so that the locking means is not damaged even if the cover is applied to the support frame from impact from the outside. There is an effect that the lid can be firmly fixed to the support frame.

In addition, if the cover is inserted into the support frame and rotated in any direction, the locking jaw naturally slides into the bottom of the locking blade, thereby catching the locking blade, thereby more easily fixing the lid to the support frame.

1 is an exploded perspective view showing an example of a rotary lock manhole cover assembly according to the present invention,
Figure 2 is a bottom perspective view showing an example of a rotary lock manhole cover assembly according to the present invention,
3 is a bottom perspective view of a lid constituting a rotationally lockable manhole cover assembly according to the present invention,
4 is a plan view of the lid,
5 is a cross-sectional view showing an example of a rotatable lock manhole cover assembly according to the present invention;
6 is a perspective view showing an example of a conventional manhole cover assembly.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the appended drawings illustrate only the contents and scope of technology of the present invention, and the technical scope of the present invention is not limited thereto. In addition, it will be apparent to those skilled in the art that various modifications and changes can be made within the scope of the present invention based on these examples.

Rotationally lockable manhole cover assembly according to the present invention is to provide a locking means that the lid can be more firmly fixed to the support frame as well as not easily damaged by external impact, installed on the top of the manhole and inside A support frame (1) having a locking blade (11) having a through hole (12) through which the locking jaw is formed on an inner circumferential surface thereof; A locking jaw 21 is formed on the bottom surface of the locking blade 11 so that the locking jaw 21 is fixed to the support frame by passing through the through hole 12 and rotating. It characterized in that it comprises a lid (2).

The supporting frame 1 is formed of a circular ring, and a part of its edge is buried in a manhole and installed in the ground.

As shown in Figure 1 to Figure 5, the inner peripheral surface of the support frame 1 is formed with a locking blade 11 in the shape of a circular ring, one or more through holes 12 in the middle of the locking blade (11) Is formed so that the locking jaw 21 formed in the lid 2 passes.

The locking wing 11 is to hold the locking jaw (21) to hold the lid so as not to be separated from the support frame (1) as shown in Figures 2 and 5 close contact with the locking wing 11, the lid ( Do not let flow of 1) occur.

In order for the locking jaw 21 to be in close contact with the locking blade 11, the inclined surface 11a is gradually thickened inward from the through-hole 12 through which the locking jaw 21 penetrates to the bottom surface of the locking blade 11. Formed.

When the lid 2 is placed on the support frame 1 and rotated, the locking jaw 21 formed on the bottom surface of the lid 2 rotates together to move in the circumferential direction, and when it meets the through hole 12, passes through the through hole. It becomes the same height as the bottom surface of the locking blade 11, when further rotated in this state, the locking jaw 21 is moved along the inclined surface to be caught by the locking blade (11).

That is, the distance between the bottom surface of the lid 2 and the locking jaw 21 is constant, but is formed to be smaller than the distance between the surface facing the locking jaw of the support frame 1 and the locking blade 11 and the locking jaw ( 21) when the lid is rotated to correspond to the bottom surface of the locking blade 11 is to be in close contact with the locking jaw so that the flow does not occur inside the lid frame.

At this time, if the bottom end of the locking blade 11 is formed at right angles, the locking jaw 21 cannot be moved toward the locking blade 11, so that the locking jaw 21 is naturally caught by forming the inclined surface 11a as described above. To move towards the middle of the.

As described above, in order to fix the lid 2 to the support frame, the lid 2 should be easily rotated. A tool should be used to allow the top surface to rotate the flat manhole cover 2 more easily, and a tool insertion groove into which the tool fits on the top surface of the lid 2 to allow the tool to be connected to the lid 2. It is preferable to form (2a).

In addition, as shown in Fig. 1 and 4, the lid 2 preferably displays the rotational direction in which the lid is locked and the rotational direction in which the lid is released. In addition, it would be good to indicate the direction in which the lid is installed in accordance with the direction of the support frame installed in the manhole.

In the drawing, although four locking jaws 21 are formed as an example, two, three, or five or more may be formed, and a through hole 12 may be formed correspondingly.

1: Support frame
11: hanging wing 11a: inclined surface
12: Through hole
2: lid 2a: tool insertion groove
21: jamming jaw

Claims

In the manhole connected to the sewer pipe,
A support frame (1) installed on the upper end of the manhole and provided with a locking blade (11) formed therein with a through hole (12) through which the following locking jaw passes;
A locking jaw 21 is formed on the bottom surface of the locking blade 11 so that the locking jaw 21 is fixed to the support frame by passing through the through hole 12 and rotating. Rotationally lockable manhole cover assembly, characterized in that it comprises a lid (2).

The method of claim 1,
Rotationally lockable manhole cover assembly, characterized in that the upper surface of the lid (2) is formed with a tool insertion groove (2a) is inserted into the tool for rotating the lid.

3. The method according to claim 1 or 2,
Rotating lock manhole cover assembly, characterized in that the inclined surface (11a) is formed on the bottom surface of the locking wing 11 to gradually increase inward from the through-hole 12 through which the locking jaw penetrates.