Environment-friendly steel lattice plate manhole cover

Abstract

The invention provides an environment-friendly steel lattice plate manhole cover. The environment-friendly steel lattice plate manhole cover comprises a steel lattice plate and a filtering assembly, the filtering assembly comprises a filter screen and a filter screen framework, the filter screen is installed in the filter screen framework, the filter screen framework is provided with at least twoinstallation columns distributed circumferentially, the steel lattice plate comprises a frame body, and further comprises flat steel and cross rods which are arranged in the frame body in warp and weft arrangement, the outer edge of the bottom side of the frame body uniformly extends downwards in the circumferential direction to form step grooves capable of being used for accommodating the filterscreen framework, step holes are formed in the inner bottom walls of the step grooves, elastic ring bodies are arranged in the thick ends of the step holes, one ends of the elastic ring bodies are fixedly connected with the step positions of the step holes, the step holes correspond to the installation columns one to one, the installation columns penetrate from the thick ends of the step holes through the elastic ring bodies to extend into the thin ends of the step holes, and the elastic ring bodies are in interference connection with the installation columns. According to the environment-friendly steel lattice plate manhole cover, the filter screen framework and the frame body can be fixed, the structure is simple, and installation is convenient, garbage entering to a drainage ditch can be reduced or avoided, and thus the degree of water pollution is decreased.

Description

technical field [0001] The invention relates to the technical field of municipal construction facilities, in particular to an environment-friendly steel grating well cover. Background technique [0002] The steel grating is made of loaded flat steel and cross bars arranged at a certain distance in warp and weft, and then welded by a high-voltage resistance welding machine to form the original plate. After cutting, notching, opening, wrapping and other processes, it is further processed into a finished product required by the customer. It can be used It is used for ventilation, utilization, heat dissipation, and explosion protection. It is often used as platforms and walkways in the fields of petrochemical, power plants, water plants, sewage treatment plants, municipal engineering, and sanitation engineering. However, the steel grating used for drainage ditches has large gaps. Garbage and other sundries are easy to enter inside, which is not conducive to drainage. Contents ...

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Problems solved by technology

[0002] The steel grating is made of loaded flat steel and cross bars arranged at a certain distance in warp and weft, and then welded by a high-voltage resistance welding machine to form the original plate. After cutting, notching, opening, wrapping and other processes, it is processed into a finished product required by the customer. It can be used It is used for ventilation, utilization, heat dissipation, and explosion protection. It is often used as platforms and walkways in the fields of petrochemical, power plants, water plants, sewage treatment plants, municipal engineering, and sanitation engineering. However, the steel grating used for drainage ditches has large gaps. Garbage and other sundries are easy to enter inside, which is not conducive to drainage

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