All-directional wedge-shaped pretension sound-proof well lid

A pre-tightening, anti-noise technology, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve problems such as cover plate noise, and achieve the effect of avoiding impact noise and good anti-theft performance

Inactive Publication Date: 2009-12-09
长沙金龙铸造实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a manhole inspection hole cover, which has the function of fastening the cover plate with all-round wedge-shaped pre-tightening force, so as to solve the problem of the sound of the cover plate in the prior art due to impact and jumping

Method used

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  • All-directional wedge-shaped pretension sound-proof well lid
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  • All-directional wedge-shaped pretension sound-proof well lid

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Embodiment Construction

[0019] The core of the present invention is to provide a manhole inspection hole cover, which has the function of fastening the cover plate with all-round wedge-shaped pre-tightening force, so as to solve the problem of the sound caused by the impact and jump of the cover plate in the prior art.

[0020] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Please refer to Figure 1-Figure 4 , In a specific embodiment, the all-round wedge-shaped pre-tightening anti-noise well cover provided by the present invention is mainly composed of a cover plate 2 and a well base 1, and the cover plate 2 is embedded in the well base 1 to cover its inner hole.

[0022] Such as figure 2 , image 3 and Figure 4 As shown, three bidirectional wedge-shaped bosses 14, 20, and 21 protruding toward th...

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Abstract

The invention discloses an all-directional wedge-shaped pretension sound-proof well lid, comprising a round well base and a cover board. Three locations of the well base internal ring are uniformly set with bidirectional wedge-shaped convex plates convex towards the central direction of the well base. The back of the location of the cover board corresponding to the well base convex plates is set with bidirectional wedge-shaped projections. Each bidirectional wedge-shaped projection is connected with the cover board by an elastic member. The bidirectional wedge-shaped convex plates of the well base have smaller upper slope and larger lower slope. The bidirectional wedge-shaped projections of the cover board have smaller lower slope and larger upper slope. The upsides of the bidirectional wedge-shaped projections of the cover board are compatible with the lower sides of bidirectional wedge-shaped convex plates of the well base. And the cover board is fixed firmly on the well base by the pretension from circumferential and vertical directions. The invention can prevent the cover board from jumping and displacement when being rolled and impacted by automobile and avoid the impact noise of the cover board to the well base.

Description

technical field [0001] The invention relates to a well cover for manhole inspection ports of urban road pipe network engineering, in particular to a well cover with noise-proof function. Background technique [0002] At present, a large amount of underground manhole inspection well covers are used in urban road construction, which are composed of a circular well seat arranged at the well head and a cover plate covered in the well seat, and are used to cover and close the inspection port. [0003] The above-mentioned cover plate and well seat are mostly made of ductile iron with excellent comprehensive mechanical properties. During the use of the cover plate, because of the reciprocating rolling and impact of the car on it, or the "grip" of the car when driving, the cover plate will be impacted. Sound and beating sound, these noises bring serious noise pollution to urban residents, and make urban residents in a state of anxiety. [0004] Although there have been many methods...

Claims

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Application Information

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IPC IPC(8): E02D29/14
Inventor 常应祥黄为童攀廖成智
Owner 长沙金龙铸造实业有限公司
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