CN210763962U

CN210763962U - Punching type manhole cover structure

Info

Publication number: CN210763962U
Application number: CN201921796507.7U
Authority: CN
Inventors: 熊丁根; 王芝斌; 王伟伟
Original assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Current assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-16
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a punching type manhole cover structure, which is arranged on a manhole of a box girder mother board and comprises a punching cover, wherein the punching cover is arranged on the manhole through a support ring cover; the thickness of the stamping cover is 2-3 mm, and stamping patterns are arranged on the upper surface of the stamping cover. The utility model discloses the weight of manhole cover has been alleviateed to improve the convenience of manhole cover operation.

Description

Punching type manhole cover structure

Technical Field

The utility model relates to a manhole cover structure on the hoist, more specifically say, relate to a punching press formula manhole cover structure.

Background

After the bank crane is manufactured, in order to facilitate the working personnel to enter the inside of a box girder of the bank crane, the operations such as inspection and maintenance are carried out, a manhole is usually arranged at the end part position connected with the manhole, and a manhole cover is arranged on the manhole to seal the manhole. The manhole cover is usually made of a steel plate with the plate thickness of 6mm, and is installed on a mother plate of a box girder in a bolt connection mode, so that the manhole cover is heavy and inconvenient to assemble and disassemble.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect that exists among the prior art, the utility model aims at providing a punching press formula manhole cover structure has alleviateed the weight of manhole cover to improve the convenience of manhole cover operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a punching manhole cover structure is arranged on a manhole of a box girder mother board and comprises a punching cover, wherein the punching cover is arranged on the manhole through a support ring cover, the support ring is connected to the box girder mother board, one end of the punching cover is connected to the support ring through a hinge, and the other end of the punching cover is connected and locked with the support ring through a lockset structure;

the thickness of the stamping cover is 2-3 mm, and stamping patterns are arranged on the upper surface of the stamping cover.

And the upper surface and the lower surface of the box girder mother board are both provided with reinforcing plates, and the support is connected to the reinforcing plates on the upper surface of the box girder mother board in a circle mode.

The hinge has two.

The lock structure comprises a stop block arranged on the inner wall of the support ring and a rotary handle arranged on the stamping cover.

The rotary handle comprises an outer handle, a connecting shaft and an inner handle, the outer handle is arranged on the upper surface of the stamping cover, the upper end of the connecting shaft penetrates through the stamping cover and is connected with the outer handle, the lower end of the connecting shaft is connected with the inner handle, the inner handle is matched with the stop block, a sleeve and a nut are further arranged on the connecting shaft, the sleeve is located between the lower surface of the stamping cover and the inner handle, and the nut is located below the inner handle.

And gaskets are arranged on the connecting shafts between the outer handle and the upper surface of the stamping cover, between the sleeve and the inner handle and between the inner handle and the nut.

In the technical scheme, the utility model provides a punching press formula manhole cover structure still has following several beneficial effect:

1) the utility model has the advantages that the whole weight of the manhole cover structure is reduced, and the operation is convenient;

2) the utility model discloses manhole cover structure adopts the hinged joint mode, the operation of opening and shutting of the manhole cover of being convenient for.

Drawings

Fig. 1 is a front sectional view of the manhole cover structure of the present invention;

FIG. 2 is a top view of the manhole cover structure of the present invention shown in FIG. 1;

fig. 3 is an enlarged schematic view of the latch structure in position a of fig. 1.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Please refer to fig. 1 to 2, the present invention provides a stamped manhole cover structure, which is disposed on a manhole 200 of a box girder mother board 100, which is a part of the prior art and will not be described herein again. Different from the prior art, the manhole cover comprises a punching cover 1, wherein the punching cover 1 is covered above the manhole 200 through a support ring 2 and is used for sealing the manhole 200. The support ring 2 is connected to the box girder mother board 100, one end of the press cover 1 is connected to the support ring 2 through a hinge 3, and the other end of the press cover 1 is connected to the support ring 2 through a lock structure and locked, so that the press cover 1 is fixed above the manhole 200.

Preferably, the thin plate of the punch cover 1 with the thickness of 2-3 mm is punched and formed, so that the weight of the whole structure is reduced.

Preferably, the upper surface of the punch cover 1 is provided with a stamping pattern 5 for improving the strength of the punch cover 1.

Preferably, reinforcing plates 4 are welded to both the upper and lower surfaces of the box girder mother plate 100, and the seat ring 2 is connected to the reinforcing plates 4 on the upper surface of the box girder mother plate 100 to increase the connection strength of the box girder mother plate 100.

Preferably, there are two hinges 3, and a corresponding number of hinges 3 may be selected according to the size of the press cover 1.

Preferably, the lock structure comprises a stop dog 7 arranged on the inner wall of the seat ring 2, and a rotating handle 6 arranged on the press cover 1.

As shown in fig. 3, the rotating handle 6 includes an outer handle 61, a connecting shaft 66 and an inner handle 63, the outer handle 61 is disposed on the upper surface of the punch cover 1, the upper end of the connecting shaft 66 penetrates through the punch cover 1 and is connected to the outer handle 61, the lower end of the connecting shaft 66 is connected to the inner handle 63, the inner handle 63 is matched with the stopper 7, and the outer handle 61 is rotated to enable the inner handle 63 to rotate in the same direction, so that the inner handle 63 and the stopper 7 are overlapped or separated, thereby locking and unlocking the punch cover 1.

Preferably, the connecting shaft 66 is further provided with a sleeve 62 and a nut 64, the sleeve 62 is located between the lower surface of the punch cover 1 and the inner handle 61, and the nut 64 is located below the inner handle 63 for fastening the inner handle 63.

Preferably, washers 65 are further disposed on the connecting shafts 66 between the outer handle 61 and the upper surface of the press cover 1, between the sleeve 62 and the inner handle 63, and between the inner handle 63 and the nut 64, so as to protect the surfaces between the connected members from being scratched, and to disperse the pressure of the nut on the connected members.

The utility model discloses manhole cover structure can be applied to the manhole closed position of entablature, bottom end rail and contact crossbeam of hoist.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides a punching press formula manhole cover structure, locates on the manhole of case roof beam mother board, its characterized in that: the box girder manhole cover comprises a punching cover, wherein the punching cover is arranged on a manhole through a support ring cover, the support ring is connected to a box girder mother board, one end of the punching cover is connected to the support ring through a hinge, and the other end of the punching cover is connected and locked with the support ring through a lockset structure;

2. The stamped manhole cover structure of claim 1, wherein: and the upper surface and the lower surface of the box girder mother board are both provided with reinforcing plates, and the support is connected to the reinforcing plates on the upper surface of the box girder mother board in a circle mode.

3. The stamped manhole cover structure of claim 1, wherein: the hinge has two.

4. The stamped manhole cover structure of claim 1, wherein: the lock structure comprises a stop block arranged on the inner wall of the support ring and a rotary handle arranged on the stamping cover.

5. The stamped manhole cover structure of claim 4, wherein: the rotary handle comprises an outer handle, a connecting shaft and an inner handle, the outer handle is arranged on the upper surface of the stamping cover, the upper end of the connecting shaft penetrates through the stamping cover and is connected with the outer handle, the lower end of the connecting shaft is connected with the inner handle, the inner handle is matched with the stop block, a sleeve and a nut are further arranged on the connecting shaft, the sleeve is located between the lower surface of the stamping cover and the inner handle, and the nut is located below the inner handle.

6. The stamped manhole cover structure of claim 5, wherein: and gaskets are arranged on the connecting shafts between the outer handle and the upper surface of the stamping cover, between the sleeve and the inner handle and between the inner handle and the nut.