Manhole cover gripping tool

Abstract

The present invention discloses a manhole cover gripping tool, and belongs to the municipal construction tools. The manhole cover gripping tool comprises a connection disk (2), wherein the top surface of the connection disk (2) is vertically provided with a lifting hook (1), at least three hanging rings (3) are fixedly arranged on the bottom surface of the connection disk (2), each hanging ring (3) is hinged to a straight rod (5), the lengths of the straight rods (5) connected to each hanging ring (3) are equal, the terminal ends of the straight rods (5) are provided with inwardly bending clamping claws (6), the lifting hook (1) is the lifting point, the connection disk (2) is connected to the three straight rods (5) having the same length, the lower ends of the straight rods (5) are provided with the inwardly bending clamping claws (6), and the clamping claws (6) can be tightly embedded into the stiffener on the edge of the anti-subsidence manhole cover, such that the slipping during the lifting force applying can be prevented, and the safety and the reliability are provided. According to the present invention, the mathematical principle that the three points determine the one plane is utilized, wherein the three clamping claws (6) are uniformly distributed on the circumference of the manhole cover, such that the circumference of the manhole cover can be driven to be lifted at the same time, and the lifting deviation phenomenon cannot be generated.

Description

technical field [0001] The invention relates to the field of municipal construction tools, in particular to a well cover grabber. Background technique [0002] During the construction of municipal roads in the prior art, the manhole cover is moved by manual crowbars by workers. Due to the limitation of the technical level of the workers, the manhole cover is deflected and issued, and the padding speed is extremely slow. The surrounding asphalt construction quality is unqualified, resulting in inconsistent reinforcement strength at the edge of the manhole cover, which is likely to cause early failure and cracking. [0003] In the process of reinforcement and installation of inspection wells on municipal roads, multiple installations are required to cooperate with the paving of the asphalt upper layer. It is required that the tools are easy and fast to install, safe and reliable in use, and fast in lifting speed. Contents of the invention [0004] In order to make up for th...

AI Technical Summary

Problems solved by technology

[0002] During the construction of municipal roads in the prior art, the manhole cover is moved by manual crowbars by workers. Due to the limitation of the technical level of the workers, the manhole cover is deflected and issued, and the padding speed is extremely slow. The surrounding asphalt construction quality is unqualified, and the reinforcement strength of the edge of the manhole cover is inconsistent, which is easy to cause early failure and cracking

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