Novel manhole cover

Abstract

The invention discloses a novel manhole cover which comprises a cover body and a safety device arranged on the lower side of the cover body, wherein the cover body is connected with the safety device through a connecting mechanism. The invention realizes the performances of safety and thievery protection by the combined action of the safety device and the connecting mechanism, and has novel and skillful structure and simple fabrication.

Description

technical field [0001] The invention relates to a novel inspection shaft cover. Background technique [0002] The manhole cover is convenient for cleaning the manhole and protecting pedestrians, but it has become the target of thieves. Manhole covers are basically used in communication, sewage and other fields, especially sewage manhole covers, and the consequences are more serious after being stolen. The depth of sewage manholes reaches 4-10 meters, and the consequences if pedestrians fall are disastrous. Even if you are lucky and no pedestrians fall, the toxic gas below will emit and pose a threat to people's health. [0003] Among the previous anti-theft manhole covers, the manhole cover with a lock is the most common. There are a lot of manhole covers in the whole city, and it is inconvenient to manage the keys; moreover, the lock is easy to rust in the wet ground, and it is difficult for thieves to steal, and it is also difficult for the staff to open it. There are a...

AI Technical Summary

Problems solved by technology

There are a lot of manhole covers in the whole city, and it is very inconvenient to manage the keys; besides, the locks are easy to rust in the wet underground, making it difficult for thieves to steal, and it is also difficult for staff to open them.

There are also many inspection manhole covers made of recycled plastic, but it is difficult to bear the heavy tonnage of the car and is easy to break

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