Lifting type pressure relief well lid

Abstract

The invention discloses a lifting type pressure relief well lid, and relates to the technical field of well lids. The lifting type pressure relief well lid comprises a pipe body and a well lid body which is located in the pipe body and plays a role in sealing the pipe body, the well lid body is connected with the pipe body through an annular groove, a guide column in the pipe body direction is arranged on the lower end face of the well lid body in the pipe body, a fixing block located in the pipe body and slidably connected with the guide column is arranged on the outer side of the guide column, the fixing block is fixedly connected with the inner wall of the pipe body, and a sliding groove in the vertical direction is formed in the fixing block. According to the lifting type pressure relief well lid, the probability that the well lid is ejected out or displaced under water flow pressure is reduced, when the well lid is ejected out by water flow, the well lid can be reset, the probability that the well lid is lost is reduced, the well lid is convenient to mount and dismount, and meanwhile a unit to which the well lid belongs can know the real-time condition of the well lid at the first time.

Description

technical field [0001] The invention relates to the technical field of manhole covers, in particular to a lift-type pressure relief manhole cover. Background technique [0002] Manhole covers are used to cover roads or deep wells at home to prevent people or objects from falling. According to the material, they can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, and resin manhole covers. The pipe body cannot meet the drainage requirements, the pipe is full of water, which exceeds the load of the pipe, and creates pressure on the entire pipe body, causing the water flow in the pipe to push the manhole cover away, and even the manhole cover is often washed away after being pushed open occurred, resulting in certain safety hazards. Contents of the invention [0003] (1) Solved technical problems [0004] Aiming at the deficiencies of the prior art, the present invention provides a lift-type pressure relief manhole cover, which solve...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a lift-type pressure relief manhole cover, which solves the problem that the existing lower pipe body and municipal drainage pipe body cannot meet the drainage requirements, and the pipe is filled with water, which exceeds the capacity of the pipe. The load creates pressure on the entire pipe body, causing the water flow in the pipeline to push the manhole cover away, and even the phenomenon that the manhole cover is pushed away after being pushed away often occurs, causing certain safety hazards.

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