CN212516541U

CN212516541U - Large air quantity sheet type silencer

Info

Publication number: CN212516541U
Application number: CN202020942926.3U
Authority: CN
Inventors: 许伟清; 赵涛
Original assignee: Wuxi Taiheng Environmental Protection Technology Co ltd
Current assignee: Shaanxi Guchuan Environmental Technology Development Co.,Ltd.
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-09
Anticipated expiration: 2030-05-29

Abstract

The utility model belongs to the technical field of the silencer, especially, be big air volume piece formula silencer, the pipeline comprises a pipe, sliding connection has the extrusion slider on the inner wall of pipeline, the one end fixedly connected with spring of pipeline inner wall is kept away from to the extrusion slider, the one end fixedly connected with acoustical panel of extrusion slider is kept away from to the spring, the bloop has been seted up on the surface of acoustical panel, fixedly connected with sound wave absorption piece on the inner wall of bloop, the outer fishplate bar of fixedly connected with on the outer wall of pipeline, set up flutedly on the one end outer wall of outer fishplate bar, it has the picture peg to peg graft in the recess of outer fishplate bar, the one end. The utility model discloses a set up sound wave absorption piece and outer fishplate bar, rebound in the bloop through the sound wave, absorb the sound wave under the effect of sound wave absorption piece, take out through the air with in the outer fishplate bar cavity again and reach the vacuous state, block the sound wave diffusion to the effect of all-round noise elimination has been reached.

Description

Large air quantity sheet type silencer

Technical Field

The utility model relates to a silencer technical field specifically is big air volume piece formula silencer.

Background

The silencer is used for the airflow pipeline with noise transmission, and can attenuate or reflect the noise in the pipeline by using noise reduction devices such as pipelines and elbows with sound absorption linings or pipelines with suddenly changed sectional areas and other discontinuous acoustic impedances. The former is called resistive muffler, the latter is called resistive muffler, there are also impedance composite mufflers, and many types of mufflers exist, but the mufflers can be divided into six main types, namely resistive muffler, impedance composite muffler, micro-perforated plate muffler, small hole muffler and active muffler, because the mufflers are based on the muffling mechanism.

There are the following problems:

1. the existing large-air-volume sheet type silencer has an unobvious silencing effect when in use.

2. The existing large-air-volume sheet type silencer cannot be conveniently and quickly replaced when in use.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a big air volume piece formula silencer has solved the poor problem of noise cancelling effect.

In order to achieve the above object, the utility model provides a following technical scheme: big amount of wind piece formula silencer, including the pipeline, sliding connection has the extrusion slider on the inner wall of pipeline, the one end fixedly connected with spring of pipeline inner wall is kept away from to the extrusion slider, the one end fixedly connected with abatvoix of extrusion slider is kept away from to the spring, the bloop has been seted up on the surface of abatvoix, the fixedly connected with sound wave absorbs the piece on the inner wall of bloop, the outer fishplate bar of fixedly connected with on the outer wall of pipeline, set up flutedly on the one end outer wall of outer fishplate bar, it has the picture peg to peg graft in the recess of outer fishplate bar, the one end fixed surface fixedly connected with extraction opening of outer fishplate bar, the one end fixedly connected with fixed block of pipeline, set up flutedly on the bottom outer wall of fixed block, it is connected.

As an optimal technical scheme of the utility model, the quantity of extrusion slider, spring and acoustical panel is a plurality of groups, and a plurality of groups extrusion slider, spring and acoustical panel are sharp equidistance and distribute.

As a preferred technical scheme of the utility model, the quantity of bloop is a plurality of groups, and a plurality of groups bloop is moment-shaped and distributes.

As a preferred technical scheme of the utility model, the quantity of outer fishplate bar is two sets of, and just two sets of outer fishplate bars are the axisymmetric installation with the vertical central line of pipeline.

As an optimal technical scheme of the utility model, the material of sound wave absorption piece is made for sponge material, and the quantity of sound wave absorption piece is a plurality of groups, a plurality of groups sound wave absorption piece is cyclic annular equidistance and distributes.

As an optimal technical scheme of the utility model, the fixed block month pipeline is the welding mode and connects, and the surface of fixed block is smooth plane.

As a preferred technical scheme of the utility model, the cavity has been seted up to the inside of outer fishplate bar, and the recess on outer fishplate bar surface is clearance fit relation with the picture peg.

Compared with the prior art, the utility model provides a big air volume piece formula silencer possesses following beneficial effect:

1. this big air volume piece formula silencer absorbs piece and external board through setting up the sound wave, when carrying out the amortization, during the sound attenuation hole on the sound attenuation board was entered into through the pipeline to the sound wave, rebounds in the sound attenuation hole through the sound wave, absorbs the sound wave under the effect of sound wave absorption piece, reaches the vacuous state through taking out the air in the external board cavity again, blocks the sound wave diffusion to the effect of all-round noise elimination has been reached.

2. This big air volume piece formula silencer through setting up extrusion slider, when needs pack into the not pipeline of equidimension with the acoustical panel, can be through rotating the shrouding, then both hands press extrusion slider and make the spring be the contraction state, then insert the acoustical panel into the pipeline, make extrusion slider and the inner wall laminating of pipeline fixed under the effect of spring elasticity, when needs change the acoustical panel, slide through extrusion slider and pipeline inner wall, extract can.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the structure of FIG. 1;

FIG. 3 is an enlargement of FIG. 2 at A;

FIG. 4 is an enlarged view at B of FIG. 1;

fig. 5 is an external view of the sound-absorbing panel.

In the figure: 1. a pipeline; 2. extruding the slide block; 3. a spring; 4. a sound-absorbing panel; 5. a silencing hole; 6. a sound wave absorbing block; 7. an outer connecting plate; 8. inserting plates; 9. an air extraction opening; 10. a fixed block; 11. a rotating shaft; 12. and (7) closing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, in this embodiment: big amount of wind piece formula silencer, including pipeline 1, sliding connection has extrusion slider 2 on pipeline 1's the inner wall, extrusion slider 2 keeps away from the one end fixedly connected with spring 3 of 1 inner wall of pipeline, spring 3 keeps away from the one end fixedly connected with acoustical panel 4 of extrusion slider 2, acoustical panel 4's surface has been seted up acoustical aperture 5, fixedly connected with sound wave absorption piece 6 on acoustical aperture 5's the inner wall, fixedly connected with outer fishplate bar 7 on pipeline 1's the outer wall, set up flutedly on the one end outer wall of outer fishplate bar 7, it has picture peg 8 to peg graft in the recess of outer fishplate bar 7, the one end fixed surface of outer fishplate bar 7 is connected with extraction opening 9, pipeline 1's one end fixedly connected with fixed block 10, set up flutedly on fixed block 10's the bottom outer wall, it is connected with pivot 11.

In this embodiment, extrusion slider 2, the quantity of spring 3 and acoustical panel 4 is a plurality of groups, and a plurality of groups extrusion slider 2, spring 3 and acoustical panel 4 are sharp equidistance and distribute, the quantity of bloop 5 is a plurality of groups, and a plurality of groups bloop 5 is big-moment distribution, the quantity of external plate 7 is two sets of, and two sets of external plate 7 are axisymmetric installation with pipeline 1's vertical central line, the material of sound wave absorption piece 6 is made for sponge material, and the quantity of sound wave absorption piece 6 is a plurality of groups, a plurality of groups sound wave absorption piece 6 is cyclic annular equidistance and distributes, fixed block 10 month pipeline 1 is welded mode and connects, and the surface of fixed block 10 is smooth plane, the cavity has been seted up to the inside of external plate 7, and the recess on external plate 7 surface is clearance fit relation with picture peg 8.

The utility model discloses a theory of operation and use flow: the utility model discloses in, at first when need pack into not the pipeline of equidimension with acoustical panel 4 in, can be through rotating shrouding 12, then both hands press extrusion slider 2 and make spring 3 be the contraction state, then insert into pipeline 1 with acoustical panel 4, make extrusion slider 2 fixed with the inner wall laminating of pipeline 1 under the effect of spring 3 elasticity, when needs change acoustical panel 4, slide through extrusion slider 2 and pipeline 1 inner wall, extract can, when carrying out the amortization, the sound wave enters into in the bloop 5 on acoustical panel 4 through pipeline 1, rebound in bloop 5 through the sound wave, absorb the sound wave under the effect of sound wave absorbing block 6, take out through the air in 7 cavities of outer fishplate out again and reach the vacuum state, block the sound wave diffusion, thereby the effect of all-round noise elimination has been reached.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Big amount of wind piece formula silencer includes pipeline (1), its characterized in that: the pipe joint comprises a pipeline (1), an extrusion sliding block (2) is connected to the inner wall of the pipeline (1) in a sliding mode, a spring (3) is fixedly connected to one end, far away from the extrusion sliding block (2), of the extrusion sliding block (2), a silencing plate (4) is fixedly connected to one end, far away from the extrusion sliding block (3), of the silencing plate (4), a silencing hole (5) is formed in the surface of the silencing plate, a sound wave absorption block (6) is fixedly connected to the inner wall of the silencing hole (5), an outer connecting plate (7) is fixedly connected to the outer wall of the pipeline (1), a groove is formed in the outer wall of one end of the outer connecting plate (7), a plug plate (8) is inserted into the groove of the outer connecting plate (7), an air suction opening (9) is fixedly connected to one end of the outer connecting plate (7), a fixing block (10) is fixedly connected to, the groove inner wall of the fixing block (10) is rotatably connected with a rotating shaft (11), and the surface of the rotating shaft (11) is fixedly connected with a sealing plate (12).

2. The high air volume plate muffler of claim 1, wherein: the number of the extrusion sliding blocks (2), the springs (3) and the sound-absorbing plates (4) is a plurality of groups, and the extrusion sliding blocks (2), the springs (3) and the sound-absorbing plates (4) of the groups are distributed in a straight line and at equal intervals.

3. The high air volume plate muffler of claim 1, wherein: the number of the bloop holes (5) is a plurality of groups, and the bloop holes (5) are distributed in a moment shape.

4. The high air volume plate muffler of claim 1, wherein: the number of the outer connecting plates (7) is two, and the two groups of outer connecting plates (7) are installed in an axisymmetric mode by using the vertical center line of the pipeline (1).

5. The high air volume plate muffler of claim 1, wherein: the material of sound wave absorption piece (6) is made for sponge material, and the quantity of sound wave absorption piece (6) is a plurality of groups, a plurality of groups sound wave absorption piece (6) are cyclic annular equidistance and distribute.

6. The high air volume plate muffler of claim 1, wherein: the fixed block (10) and the lunar pipeline (1) are connected in a welding mode, and the surface of the fixed block (10) is a smooth plane.

7. The high air volume plate muffler of claim 1, wherein: the cavity is opened to the inside of outer fishplate bar (7), and the recess and picture peg (8) on outer fishplate bar (7) surface are clearance fit relation.