Rubber-fibre ball silencing board

A technology of sound-absorbing panels and steel fibers, which can be applied to noise absorbing devices, buildings, etc., can solve the problems of unfavorable driving safety, noise pollution, high manufacturing cost, etc., and achieve the effect of increasing sound-absorbing effect, good sound-absorbing effect and low manufacturing cost.

Inactive Publication Date: 2007-07-18
刘堃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problem of noise pollution, sound insulation walls have been erected on both sides of the road in many places. The basic shape of the sound insulation wall is plate-shaped. , the sound isolation effect of the sound insulation wall is not ideal; on the highway, due to the effect of the sound insulation wall, the noise is reflected to the highway, which aggravates the driver's fatigue, makes the psychological irritability increase, and is not conducive to driving safety. , the main cause of noise pollution is that the sound wavelength is large, the acoustic impedance of traditional materials is small, and the sound insulation effect cannot meet people's needs
In order to obtain a better sound insulation effect, the sound insulation wall must be thick and bulky, so the manufacturing cost is high. Such a sound insulation wall can only be used in a professional sound-absorbing room

Method used

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  • Rubber-fibre ball silencing board
  • Rubber-fibre ball silencing board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: In Fig. 1, the sound-absorbing board has a main board, and spherical steel fiber balls 3 are distributed in the main board. This mainboard has foam rubber 2, and the hole of spherical steel fiber ball is distributed in foam rubber 2, and steel fiber ball 3 is positioned at the hole, and there is reflection bar 7 outside main board; Foam rubber is the foam rubber of surface hardening; Steel fiber The ball 3 is a sphere composed of metal wires irregularly, and is arranged in two layers. The main board is a flat plate; the main plate is a layer; the reflective strip is concave.

Embodiment 2

[0021] Embodiment 2: In Fig. 2, the foam rubber is surface-softened foam rubber, and the outer end face is connected with a surface layer; the steel fiber ball is a sphere composed of metal strips randomly, arranged in one layer. The main board is a flat plate; the main pulley is a layer; the reflection strips are protruding. Others are the same as in Embodiment 1, omitted.

Embodiment 3

[0022] Embodiment 3: In Fig. 3 and Fig. 4, the frames of all boards are two rigid mounting frames 4 that are not directly connected, and there are mounting ears 5, screw holes and mounting hooks 6 on them for quick connection. The mounting ears 5 are located on the right side and the upper side of the body; the mounting hooks 6 are located on the left side and the lower side of the body.

[0023] When in use, fix the backboard on both sides of the road, and connect the sound-absorbing board to the backboard through fixing bolts. There is a space layer between the sound-absorbing plate and the back plate, and the space layer is a reflection filter, which can reduce the noise of a specific frequency band.

[0024] A layer of sound-absorbing steel fiber is wrapped with two surface layers and directly connected to the backboard, and the main board is a corrugated board. Others are the same as in Embodiment 1, omitted.

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Abstract

The acoustic rubber-fiber ball board includes main boards, flat, corrugated or curved; and steel fiber balls comprising irregularly steel filaments or strips inside the main boards. It has different sound absorbing engineering structures to absorb and consume sound waves to reach silencing effect. It may be used in highway, railway, hall and other engineering to absorb sound and reduce noise and has low manufacture cost. Its surface may have increased reflecting strips to reflect sound to the air and raise the silencing effect.

Description

technical field [0001] The invention relates to a sound-absorbing board, in particular to a rubber-fiber ball sound-absorbing board. Background technique [0002] With the rapid development of highways, highways, railways and urban construction in our country, all kinds of running vehicles generate huge noise, which has caused huge noise pollution to the living environment of residents. In order to solve the problem of noise pollution, sound insulation walls have been erected on both sides of the road in many places. The basic shape of the sound insulation wall is plate-shaped. , the sound isolation effect of the sound insulation wall is not ideal; on the highway, due to the effect of the sound insulation wall, the noise is reflected to the highway, which aggravates the driver's fatigue, makes the psychological irritability increase, and is not conducive to driving safety. , The main cause of noise pollution is that the sound wavelength is large, the acoustic impedance of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F8/00
Inventor 刘堃刘春疆
Owner 刘堃
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