An inspection wellhead with shock-absorbing, noise-reducing, and anti-drop plastic pad nets

Abstract

The invention relates to a manhole with a piece of shock-absorption noise-reduction and fall-prevention plastic cushion net, belonging to the technical field of safety protection of public works manholes. The manhole comprises a manhole lid bracket, a manhole lid and a piece of fall-prevention net, wherein the fall-prevention net adopts a one-step injected and shaped concave structure, is placed on a positioning flange of the manhole lid bracket via a mounting flange or positioning clamping slots, and is fastened on the manhole lid bracket via inner hexagonal bolts; the manhole lid is placed on the fall-prevention net. The manhole provided by the invention adopts the structure that the fall-prevention net is additionally mounted between the manhole lid and the manhole lid bracket, and passersby and vehicles as well as large-size miscellaneous articles can be effectively prevented from falling into the manhole when the manhole lid is swept by rainwater or displaced; moreover, the fall-prevention net can play the roles of shock absorption, noise reduction and prolongation of service life of manhole lid. The mounting and overhaul are convenient, the manufacture cost is low, and the anti-theft effect is good. The manhole with the shock-absorption noise-reduction and fall-prevention plastic cushion net solves the problems that hard contact exists on a contact surface of the manhole, intense vibration and high-decibel noise are generated by the rolling and pressing of vehicles, no fall-prevention facilities are in the manhole, and passersby frequently fall into the manhole.

Description

technical field [0001] The invention relates to an inspection wellhead with a shock-absorbing, noise-reducing and anti-falling plastic cushion net used in municipal engineering, and belongs to the technical field of safety protection for municipal engineering inspection wellheads. Background technique [0002] With the rapid development of urban construction in our country, more and more underground pipe networks are laid, and more and more corresponding inspection wells are installed accordingly. The traditional inspection wells used on urban roads are roughly divided into three types of inspection wellheads: cement prefabricated, plastic and cast iron. The manhole cover is fixed on the wellhead, and its contact surface is hard contact without any shock absorption measures. When such a manhole cover is installed on the main traffic road and is crushed by vehicles, the manhole cover and the support stop will collide with each other, resulting in severe vibration and vibratio...

AI Technical Summary

Problems solved by technology

The traditional inspection wells used on urban roads are roughly divided into three types of inspection wellheads: cement prefabricated, plastic and cast iron. The manhole cover is fixed on the wellhead, and its contact surface is hard contact without any shock absorption measures. When such a manhole cover is installed on the main traffic road and is crushed by vehicles, the manhole cover and the support stop will collide with each other, resulting in severe vibration and vibration. High-decibel noise can cause damage to manhole covers and supports, causing safety accidents where pedestrians or vehicles fall in, and also affects people's lives and the image of the city

On the other hand, due to the frequent occurrence of extreme weather, heavy rain often causes the manhole covers in the city to be washed away or displaced by the rain. Since there are no fall prevention facilities in the wellhead, accidents of pedestrians falling into wells often occur, causing casualties

In order to solve this problem, someone has designed an inspection wellhead with a nylon protective net installed under the well cover. The inventions and invention patents of CN103485367A, CN203383235U, CN203383322U, CN203383241U, and CN203440833U all use hooks and nets. Fix the expansion bolts with hooks on the inspection wellhead, and then hang the net on the hooks, but because the existing inspection wells are mostly made of cement prefabricated, plastic and cast iron, they are not matched with nylon protective nets and hooks , the installation is very inconvenient, and it is easy to fall off between the protective net and the hook when the rain recoils, and there is no shock absorption and noise reduction function

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