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Pulling type silencer

A kind of muffler and pull-out technology, which is applied in the connection of sounding instruments, instruments, rods, etc., to achieve the effects of strong adaptability, convenient operation and simple structure

Inactive Publication Date: 2018-02-23
SUZHOU ANKEN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general mufflers are of fixed structure. In some special changing space environments, the length of the muffler needs to be flexibly adjusted. The muffler with a fixed structure cannot meet this requirement.

Method used

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  • Pulling type silencer

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Embodiment Construction

[0010] The technical solution of the present invention will be described in further non-limiting detail below in combination with preferred embodiments and accompanying drawings.

[0011] Such as figure 1 As shown, a pull-out muffler corresponding to a preferred embodiment of the present invention includes two coaxially arranged mufflers: a first muffler pipe 1 and a second muffler pipe 2 . There is a telescopic connection between the first telescopic tube 1 and the second telescopic tube 2, and the pipe walls are provided with sound-absorbing materials for sound absorption. The second silencing tube 2 can be sleeved outside the first silencing tube 1. The first silencing tube The outer diameter of 1 can be set to be slightly larger than the inner diameter of the second muffler pipe 2. Since the sound-absorbing material is relatively soft and elastic, a certain clamping force can be formed between the first muffler pipe 1 and the second muffler pipe 2 to make it It can move r...

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PUM

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Abstract

The invention discloses a pulling type silencer. The pulling type silencer comprises at least two silencing pipes coaxially arranged, wherein the silencing pipes are in telescoping connection. The pipe diameters are increased or reduced in sequence when the silencer is in an extension state, one of two adjacent silencing pipes can sleeve the other one. When the silencer is shortened to the minimalstate, the silencing pipes can completely retract into the silencing pipe with the maximal pipe diameter. For the pulling type silencer, by pulling the silencing pipes, the length of the silencer canbe changed, thus the silencer can adapt to different use spaces, the adaptation is very strong, and in addition, the pulling type silencer is simple in structure, and convenient to carry and operate.

Description

technical field [0001] The invention relates to a pull-out muffler. Background technique [0002] The muffler is a device that allows airflow to pass through, but can prevent or reduce sound transmission, and is an important measure to eliminate aerodynamic noise. There are mainly resistive and resistive mufflers as well as composite mufflers. The general mufflers are of fixed structure. In some special changing space environments, the length of the muffler needs to be adjusted flexibly, and the muffler with a fixed structure cannot meet this requirement. Contents of the invention [0003] The object of the present invention is to provide a pull-out muffler, which can change the length and thickness, aiming at the above-mentioned defects in the prior art. [0004] In order to achieve the purpose of the above invention, the present invention adopts the following technical solutions. A pull-out muffler includes at least two muffler pipes arranged on coaxial lines, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/16F16B7/10
CPCG10K11/16F16B7/10
Inventor 付迅
Owner SUZHOU ANKEN ELECTRONICS TECH