Anti-impact cast iron well lid for urban road and implementation method of anti-impact cast iron well lid

Abstract

The invention discloses an anti-impact cast iron well lid for urban roads and an implementation method thereof. According to the anti-impact cast iron well lid for the urban roads and the implementation method thereof, when an external cover plate is impacted and extruded, the falling speed of the external cover plate when the external cover plate is pressed is reduced through the resilience acting force of a buffer spring and a center spring, the buffer spring and the center spring support the external cover plate upwards, direct collision and contact between the external cover plate and the internal cover plate are avoided, the edge of the external cover plate presses the bearing frame downwards, the bearing frame moves downwards on the internal insertion plate, and the external cover plate is supported upwards through resilience of the internal spring; according to the structure, the external cover plate is prevented from being directly collided and contacted with the gasket layer, the impact force of the well lid can be effectively relieved, the well lid is protected, the service life of the well lid is prolonged, normal use of the well lid is kept, and noise is effectively prevented from being generated in the impact and collision process.

Description

technical field [0001] The invention relates to the technical field of cast iron manhole covers, in particular to an anti-impact cast iron manhole cover for urban roads and an implementation method thereof. Background technique [0002] Manhole covers, as one of the urban infrastructure, are used to cover roads or deep wells on both sides of the road to prevent people or objects from falling. [0003] Patent No. CN201220312202.6 discloses a polymer composite material inspection manhole cover, including a polymer composite material well base and a polymer composite material manhole cover installed on the well base, one side of the manhole cover is movably hinged in the well base, It is characterized in that two connectors are provided on one side of the well cover, and the two connectors are symmetrically arranged on two corners of one side of the well cover, and two connecting grooves are arranged on the inner side of the well base, and the two connecting grooves They are r...

AI Technical Summary

Problems solved by technology

[0004] 1. The manhole cover cannot be closely attached to the road surface. When the vehicle passes by, the tires of the vehicle will squeeze the manhole cover to cause collision, and the manhole cover will produce noise during the collision process.

[0005] 2. In the process of being subjected to frequent impacts, the manhole cover is likely to cause local damage to the manhole cover, thereby affecting the normal use of the manhole cover and reducing the service life of the manhole cover itself

Images