CN200997273Y

CN200997273Y - Sound-proof shield

Info

Publication number: CN200997273Y
Application number: CN 200620155717
Authority: CN
Inventors: 周望明
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-31
Filing date: 2006-12-31
Publication date: 2007-12-26
Anticipated expiration: 2016-12-31

Abstract

The utility model relates to a sound insulation mantle, which comprises a sound insulation mantle body and is characterized in that the sound insulation body is composed of at least three layers, namely the internal supple fiber layer, the mid framework material layer and the external board material.

Description

A kind of blimp

Technical field

The utility model relates to the noise insulation equipment technical field, specifically relates to a kind of blimp that motor etc. produces the noise source of noise that can be used for isolating.

Background technology

Noise is a kind of ubiquity pollution source, and hearing can be damaged in the noise pollution source of high-decibel, influences health.For reducing common way is to install blimp on the equipment of generation noises such as motor additional, isolates blocking noise.

At present, blimp commonly used generally is the metal cover body, or the sound insulation cover body of being made by acoustic absorbants such as felt or asbestos.This class noise insulation equipment can reduce noise to a certain extent, but erasure effect is not obvious.The disclosed blimp of China's CN99230478.4 patent " the noise elimination sound arrester of ball tube mill " is made of the flexible substrate layer that is fixedly connected sequentially, flexible absorbent treatment and flexible pugging, and the noise elimination blimp fixedly covers on the outside surface of whole cylindrical shell by strap and packing button.The flexible substrate layer of noise elimination blimp is a low alkali glass fiber cloth, and flexible absorbent treatment is a mineral wool, and flexible pugging is flame retardant type PVC leatheret or waterproof cloth.Be used to shake less occasion, the blimp of this utility model is a flexible structure, and weight is light, have the soundproof effect of eliminating the noise preferably.But also wait to improve for blimp rigid structure, that have better soundproof effect.

The utility model content

Technical problem to be solved in the utility model provides a kind of have hierarchy and the good blimp of soundproof effect.

The utility model is achieved through the following technical solutions:

Design a kind of blimp, the blimp body has three layers at least, comprises internal layer flexible fiber layer, central frame material layer and outer sheet metal layer.

As improvement of the present utility model, blimp comprises seven-layer structure, is flexible fiber layer, iron wire stratum reticulare, wool carpet veneer, iron wire stratum reticulare, the cotton layer of sound insulation salt, carpenter's flaggy and outer plastic-aluminum flaggy from inside to outside successively

The utility model has following remarkable result compared to existing technology:

The noise elimination blimp of this device has multi-layer absorption structure, and internal layer flexible fiber and interval wool felt and the sound insulation salt cotton between frame material forms multilayer and inhale noise elimination structure, and the effect that abates the noise is remarkable, can make noise reduce the 10-50 decibel.

Description of drawings

The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.

Fig. 1 is the surface structure synoptic diagram of the utility model embodiment;

Fig. 2 is the cross-sectional schematic of the utility model embodiment

Embodiment

Referring to Fig. 1～2, a kind of blimp can be used for isolating on the noise generation equipment such as motor, abates the noise reducing.The blimp 1 of present embodiment has seven-layer structure, adopts blocks of glass wool near the internal layer 17 of the equipment motor 2 that abates the noise, and can be bonded fabric or other.The flexible fiber layer of internal layer adheres on the aperture iron wire stratum reticulare 16 that is fixed on time internal layer.The another side of aperture entanglement is fixed with wool felt, and wool carpet veneer 15 thickness are advisable with 20mm.The laminated connection aperture of wool felt entanglement, the another side setting is had an appointment on the thick batten frame of 30mm, batten rack-layer 14 and aperture iron wire stratum reticulare 16 be fixing acoustical material such as wool felt, flexible fiber both, can make the noise that does not have to eliminate enter down one deck acoustical material by ccf layers such as batten framves again.

Outside the batten rack-layer 14 of present embodiment is sound insulation salt surface layer 13, and sound insulation salt cotton layer thickness is got 60mm, and the cotton layer of sound insulation salt is outer to be carpenter's flaggy 12, and carpenter's flaggy can be selected to use in the practical application.The outermost layer of present embodiment is the plastic-aluminum flaggy 11 that has about dustproof and location.

The noise elimination blimp of this device has multi-layer absorption structure, and internal layer flexible fiber and interval wool felt and the sound insulation salt cotton between frame material forms multilayer and inhale noise elimination structure, and the effect that abates the noise is remarkable, can make noise reduce the 10-50 decibel.Certainly, can select the number of plies and the acoustic damping materials of cover body structure, the general blimp composition that haves three layers at least according to the intensity of the generation noise of noise source.

Claims

1, a kind of blimp comprises the blimp body, it is characterized in that: described blimp body has three layers at least, internal layer flexible fiber layer, central frame material layer and outer sheet metal layer.

2, blimp according to claim 1 is characterized in that: described frame material layer is entanglement or batten frame, and outer sheet material is aluminium-plastic panel.

3, blimp according to claim 2, it is characterized in that: described blimp body is a seven-layer structure, is flexible fiber layer, iron wire stratum reticulare, wool carpet veneer, iron wire stratum reticulare, the cotton layer of sound insulation salt, carpenter's flaggy and outer plastic-aluminum flaggy from inside to outside successively.

4, blimp according to claim 3 is characterized in that: described flexible fiber layer is the cotton flaggy of sound control glass.