Near-rail sound absorption and insulation device

A sound insulation and rail suction technology, which is applied in the direction of tracks, roads, buildings, etc., can solve the problems of affecting the line of sight of the train, the sound barrier occupies a large area, and the load requirements are high, achieving the effects of expanding the field of vision, reducing the height, and reducing noise

Pending Publication Date: 2020-07-14
SHANXI SHANGFENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general sound barrier occupies a large area, has high load requirements, affects the line of sight of the train, and has disadvantages such as high cost.

Method used

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  • Near-rail sound absorption and insulation device
  • Near-rail sound absorption and insulation device
  • Near-rail sound absorption and insulation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 , figure 2 As shown, a near-rail sound absorption device is composed of a connecting piece 2, a mounting bolt 3, and a noise reduction body 4.

[0021] First, level the ground on both sides of the railway sleeper to make the ground even without protrusions or depressions; then the connecting piece 2 is fixed to the sleeper 1 with the mounting bolt 3, and finally the noise reduction body 4 is connected and fixed with the connecting piece 2.

[0022] The connector 2 is made by bending a 10mm thick steel plate, one end is a U-shaped groove connecting end, and the other end is a flat plate, and the U-shaped groove connecting end and the flat plate are both provided with connecting holes with a diameter of 18mm. The U-shaped groove connection end is buckled on the end face of the sleeper and fixed with expansion bolts M16*100. The plate and the noise reduction body of the connector are fixed with bolts M16*50. Play the role of connection and fixation.

[0023] ...

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Abstract

The invention relates to a near-rail sound absorption and insulation device and belongs to the technical field of urban rail transit. The device is composed of a connecting piece and noise reduction bodies, wherein the connecting piece is fixedly connected with a sleeper through a bolt, the noise reduction bodies are fixedly connected with the connecting piece, the noise reduction bodies are L-shaped rubber integral products, two end surfaces of each noise reduction body are closed and are concave-convex primary and secondary rabbets respectively, and every two adjacent noise reduction bodiesare in butt joint through concave-convex primary and secondary rabbets, vertical surface transverse waves and vertical surface vertical waves of the noise reduction body are arranged at intervals, planes of the noise reduction bodies are downward slopes, and plane vertical waves and plane transverse waves of the noise reduction bodies are arranged at intervals. The device is easy to manufacture, safe, convenient to install and maintain, small in occupied space, free of extra foundation, low in height and close to a noise source, the good sound absorption effect is achieved, construction conditions are improved, and the view of passengers is enlarged.

Description

technical field [0001] The invention relates to the technical field of urban rail transit, in particular to a near-rail sound absorption device. Background technique [0002] Urban rail transit plays a key role in improving residents' travel quality, improving urban ecological environment, promoting urban economic development and optimizing urban spatial layout. But at the same time, with the continuous densification of the rail transit network in various cities, the continuous increase of train speed, and the continuous increase of the operating life of the line, the negative problems of vibration and noise induced by it have become more and more serious, and have attracted more and more attention. Vibration and noise have become one of the seven major environmental hazards. With the increase of the current running speed of the railway, the noise generated by the friction of the track seriously affects the nearby villages and communities. In order to harmonize the living e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B19/00
CPCE01B19/003
Inventor 孟新利王高峰陈岩许志伟
Owner SHANXI SHANGFENG TECH
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