Reinforce anti-theft sealing device for manhole

Abstract

The well mouth sealer consists of frame, cover and opener. The frame has fixed cover plate with one closed boss extending to frame wall, the cover is on the boss, and the opener consists of worm gear, worm, main shaft meshes to the worm gear, two levers, two inner arms with one end fixed to the main shaft and the other end fixed on forcing cross bar, and two outer arms with one end fixed to the main shaft and the other end connected via cardon to the cover. The present invention has the advantages of simple structure, easy opening and theft defense.

Description

(1) Technical field [0001] The invention belongs to a wellhead device. (2) Technical background [0002] Flat, clean and smooth roads are one of the important symbols of a modern city and an important measure for the rapid development of the national economy. Since the reform and opening up, although our urban construction has made remarkable leaps and bounds, the sewer manhole covers on the road and the ventilation and maintenance manhole covers of underground facilities still use the traditional manhole covers. The manhole covers are not only often lost because they do not have anti-theft devices, Cause economic losses, and traffic accidents easily occur, even casualty vicious troubles occur, the well cover has rusted to death due to long-term immobility, it is difficult to open, and sometimes in order to open the well cover, the well cover has to be smashed. In addition, because the manhole cover does not have waterproof and sandproof devices, it often causes sedimentati...

AI Technical Summary

Problems solved by technology

Since the reform and opening up, although our urban construction has made remarkable leaps and bounds, the sewer manhole covers on the road and the ventilation and maintenance manhole covers of underground facilities still use the traditional manhole covers. The manhole covers are not only often lost because they do not have anti-theft devices, It causes economic losses, and is prone to traffic accidents, even casualties and vicious incidents. The manhole cover has rusted to death due to long-term immobility, and it is difficult to open. Sometimes in order to open the manhole cover, the manhole cover has to be smashed

In addition, because the manhole cover does not have waterproof and sandproof devices, it often causes sedimentation in the well, resulting in blockage of the sewer, water on the road after the rain, hindering the traffic, and also brings many problems to the maintenance of underground facilities, such as various cables and pipe networks. inconvenient

Have again, this kind of manhole cover also does not meet environmental protection requirement, and in the hot summer, the unpleasant smell in the sewer is often distributed in the air, causes environmental pollution

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