A simple safety manhole cover with handrail function

Abstract

The invention discloses a simple and safe manhole cover with handrail function, which comprises a manhole shell. Connection, the left side of the top of the manhole cover is fixed with a handle, the left side of the bottom of the manhole cover is fixed with a lever, the left side of the manhole shell is fixed with a shell cover, and the left side of the manhole shell A plate shell is fixed, and a U-shaped groove is opened inside the plate shell, and a first chute is opened on the left and right sides of the inside of the U-shaped groove, and a first slider is built in the first chute, The U-shaped groove is built with a blocking block. In the present invention, the damping shaft is used to connect the shaft between the manhole shell and the manhole cover, which can play a better buffer effect when closing the manhole cover, avoid the direct fall of the manhole cover, and greatly improve the safety performance during use. Widely promoted and used.

Description

technical field [0001] The invention relates to a manhole cover, in particular to a simple and safe manhole cover with handrail function. Background technique [0002] At present, the manhole cover is installed on the top of the tank body of the vehicle. It is a passage for people to enter and exit the tank, and an observation port for checking the goods and the natural conditions inside the tank. Generally, it is a cast iron cover plate. The cast iron cover plate itself is relatively heavy. There is no protective measure for the staff when opening and closing. It is dangerous to use and prone to accidents. In order to solve the above-mentioned problems, we propose a simple safety manhole cover with a handrail function. Contents of the invention [0003] The purpose of the present invention is to provide a simple and safe manhole cover with the function of handrails. The connecting shaft between the manhole shell and the manhole cover is connected by a damping shaft, whic...

AI Technical Summary

Problems solved by technology

[0002] At present, the manhole cover is installed on the top of the tank body of the vehicle. It is a passage for people to enter and exit the tank, and an observation port for checking the goods and the natural conditions inside the tank. Generally, it is a cast iron cover plate. The cast iron cover plate itself is relatively heavy. There is no protective measure for the staff when opening and closing. It is dangerous to use and prone to accidents. In order to solve the above problems, we propose a simple safety manhole cover with handrail function

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