Easy-dismounting type safe municipal well lid and dismounting tool and dismounting method

Abstract

The invention provides an easy-dismounting type safe municipal well lid, a dismounting tool and a dismounting method, belongs to the field of municipal construction equipment, and aims at solving theproblem of complex dismounting and mounting of an existing well lid. The easy-dismounting type safe municipal well lid comprises a well seat and a lid body, wherein a stopping ring is arranged on theinner wall of the well seat. The easy-dismounting type safe municipal well lid further comprises a supporting column of which the bottom end is fixed to the top surface of the stopping ring; a supporting block is fixed to the top end of the supporting column. The easy-dismounting type safe municipal well lid further comprises a supporting plate; the supporting column correspondingly pass through supporting holes; a sand preventing sleeve is fixed to the outer edge of the top surface of the supporting plate. The easy-dismounting type safe municipal well lid further comprises compressing springswhich sleeve the supporting columns; a lock slot is formed in the inner wall of the sand preventing sleeve; two dismounting holes are formed in the lid body; a lid ring is arranged on the bottom surface of the lid body. The easy-dismounting type safe municipal well lid further comprises two channel steels; each channel steel comprises a bottom plate and two side plates; rod seats are arranged onthe outer side surfaces of the two side plates; a through hole is formed in the lid ring. The easy-dismounting type safe municipal well lid further comprises a U-shaped pin which consists of two pin rods and a pushing rod; the front ends of the pin rods pass through the through hole; a stopping ring is fixed to each pin rod. The easy-dismounting type safe municipal well lid further comprises returning springs which sleeve the pin rods. The easy-dismounting type safe municipal well lid is high in antitheft performance, and is convenient to dismount and mount.

Description

technical field [0001] The invention belongs to the technical field of municipal engineering equipment, and relates to an easily dismantled and safe municipal manhole cover, a dismantling tool and a dismantling method. Background technique [0002] As an important part of the urban drainage system, the sewer pipe has become an important municipal engineering facility in urban construction. After the currently used well cover is installed and used for a period of time, the gap between the well seat and the cover body will be filled with silt, which makes it very laborious to open again. In severe cases, it cannot be opened or the well cover is damaged. [0003] The existing application number is 201620468375.5, which is a Chinese utility model patent named "Easy Maintenance Municipal Engineering Manhole Cover", which is provided with an annular sand-proof sleeve at the gap between the well seat and the cover body, and the sand-proof sleeve is fixed with the cover body. The b...

AI Technical Summary

Problems solved by technology

[0006] 3. The adjusting plate is a circular plate structure, which will increase the weight of the cover body and affect the structure of the well cover at the same time

[0008] 1. Consistent with the above problems, because the cover body is often under pressure and the use environment is complex, the internal thread of the disassembly hole is easily damaged by pressure or corrosion, and it is extremely difficult to keep it intact. After damage, it cannot be used to install and disassemble the rod;

[0009] 2. Due to the need for multiple disassembly rods to cooperate, it is necessary to s...

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