Presser inspection well cover

A technology of inspection well cover and pressure plate, which is applied in the field of inspection well cover, can solve the problems of poor affinity and insufficient thickness of the road surface, etc., and achieve the effects of prolonging the service life, saving repair costs, saving fuel costs and maintenance costs

Inactive Publication Date: 2009-09-09
童焘
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its defects: (1) The thickness of the pavement on the base circle is not enough. According to the steam-20 load calculation, the thickness of the cement concrete pavement should be 24 cm, while the thickness of the pavement on the base circle is only 9 cm
Insufficient pavement thickness causes "rotten edge"; (2) there are 8 stiffeners on the base circle, and stress concentration causes "rotten edge"; (3) poor affinity causes "rotten edge"); the latter is rigidity and flexibility Connection problem, cracks in rigid-flexible connection on asphalt concrete pavement is a worldwide problem, and no solution has been found so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as figure 1 , 2 , 3, 5, 6, 7, and 8.

[0048] A kind of pressure plate type flexible manhole cover, comprises bull ear type well seat 4 (such as figure 1 , 2 shown), well cover, anchor bolt assembly 1, elastic pressure plate 2, three-oil two-net plastic gasket 3 and concrete well cap 5 (such as Figure 7 , 8 shown), not shown in the figure, it is better to adopt a cylindrical embedded connection structure between the ear-type well seat 4 and the well cover, the height of the cylindrical surface is 10mm-20mm, and the anchor bolt assembly 1 (composed of a screw rod and a nut The lower end (screw) of the composition) is anchored in the concrete well cap 5 and is located outside the ear-type well seat 4, and the three-oil-two-network plastic gasket 3 is installed between the ear-type well seat 4 and the concrete well cap 5, The elastic pressure plate 2 is set on the anchor bolt assembly 1, one end of which is against the bull ear on the bull ear well seat 4, and t...

Embodiment 2

[0050] Such as figure 1 , 2 , 4, 7, and 8.

[0051] A pressure plate type rigid manhole cover, which is mainly composed of a well cover (not shown in the figure), a bull ear type well seat 4, an anchor bolt assembly 1, a rigid pressure plate 6, and a concrete well cap 5, such as Figure 4 As shown, the lower end of the anchor bolt assembly 1 (mainly composed of a screw and a nut, the specification should be greater than 3×Φ12mm) is anchored to the concrete well cap 5 (such as Figure 7 , shown in 8, the ring height can be 250mm, and the ring width can be 250mm) and is located in the cow ear type well seat 4 (such as figure 1 , shown in 2) on the outside, the cow ear type well seat 4 is directly supported on the concrete well cap 5, and the rigid pressure plate 6 (also refer to Figure 5 , 6The form of making, top view is " 8 " shape structure) is sleeved on the anchor bolt assembly 1, and its one end and the cow ear on the bull ear type well seat 4 offset, and the other en...

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PUM

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Abstract

A presser inspection well cover comprises a flexible structure and a rigid structure, wherein the presser inspection well cover mainly comprises a bovine ear type well seat (4), an anchor bolt assembly (1), an elastic pressure plate (2), a three-oil two-network plastic washer (3) and a concrete well cap (5), wherein the lower end of the anchor bolt assembly (1) is anchored in the concrete well cap (5) and positioned outside the bovine ear type well seat (4), the three-oil two-network plastic washer (3) is cushioned between the bovine ear type well seat (4) and the concrete well cap (5), the elastic pressure plate (2) is sleeved on the anchor bolt assembly (1), one end of the elastic pressure plate (2) is against the bovine ear type well seat (4) and the other end is against the supper surface of the concrete well cap (5), and a rigid presser inspection well cover is internally provided with at least one three-oil two-network plastic washer (3). The invention can effectively eliminate the flexible road slit and the rigid road broken edge around an inspection well, prolongs the service life of the road, saves the road building and maintenance cost, and saves the fuel cost and the maintenance cost of an engine.

Description

technical field [0001] The invention relates to a manhole cover, in particular to a manhole cover which is well connected to the road surface and can eliminate cracks and rotten edges, in particular to a press plate type manhole cover. Background technique [0002] The inspection well cover is also called the inspection well cover (hereinafter collectively referred to as the inspection well cover). Manhole covers are widely used in the closure of underground pipe network entrances and exits such as water supply, drainage, heat supply, gas supply, electricity, telecommunications, sanitation, environmental protection, street lights and fire protection. Vector of urban transport. [0003] Manhole cover has two kinds of heavy and light, and the present invention only relates to heavy manhole cover, does not consider light manhole cover. Manhole covers are an important part of urban infrastructure. At present, there are generally "bad edges" of cement concrete pavement and "cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14
Inventor 童焘
Owner 童焘
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