CN210463535U

CN210463535U - Cavity impedance composite muffler

Info

Publication number: CN210463535U
Application number: CN201920702186.3U
Authority: CN
Inventors: 郑利强
Original assignee: Zhongtai Borui Tianjin Mechanical And Electrical Equipment Co Ltd
Current assignee: Zhongtai Borui Tianjin Mechanical And Electrical Equipment Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-05-05
Anticipated expiration: 2029-05-16

Abstract

The utility model discloses a cavity impedance composite muffler, which comprises a housin, the inside one end of casing is provided with the air inlet, the inside one end of keeping away from the air inlet of casing is provided with the gas outlet, the inside a plurality of first abatvoix that evenly is provided with of casing, the inside resistance cavity that all begins in a plurality of first abatvoix one side of casing, the outside both ends of casing are all fixed and are provided with the ring flange, first standing groove has been seted up to the inside bottom of casing, the inside bottom mounting of first standing groove is provided with the spout, the inside activity of spout is provided with the rubber support board, the fixed mount pad that is provided with in rubber support board top, mount pad top one end is the fixed dustproof filter screen that is provided. The utility model discloses a set up dust-proof filter screen and active carbon filter screen and can detach dust and peculiar smell in the air through this silencer respectively to the air quality of supplying air in the tuber pipe of being connected with this silencer has been improved.

Description

Cavity impedance composite muffler

Technical Field

The utility model relates to an impedance composite muffler technical field specifically is a cavity impedance composite muffler.

Background

The impedance composite muffler refers to a muffler in which sound absorption and sound reflection are appropriately combined. The silencer has the characteristics of eliminating middle and high frequency noise by a resistive silencer and eliminating low and medium frequency noise by a resistive silencer, and has a broadband silencing effect.

The existing impedance composite muffler has the following defects:

1. the existing impedance composite silencer is directly connected with the air pipe, the air in the air pipe can pass through the impedance composite silencer, and if the air pipe contains more dust or the air has peculiar smell, the quality of the air supplied by the air pipe can be influenced.

2. The existing impedance composite silencer is mostly connected with the air pipe through the flange plate, gaps may be reserved at the joints of the silencer and the air pipe, and noise in some air pipes may seep out from the gaps, so that the noise reduction and silencing effect of the impedance composite silencer for the air pipe is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cavity impedance composite muffler to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cavity impedance composite muffler, includes the casing, the inside one end of casing is provided with the air inlet, the inside one end of keeping away from the air inlet of casing is provided with the gas outlet, the inside a plurality of first abatvoix that evenly is provided with of casing, the inside resistance cavity that all begins in a plurality of first abatvoix one side of casing, the equal fixed ring flange that is provided with in the outside both ends of casing, first standing groove has been seted up to the inside bottom of casing, the inside bottom mounting of first standing groove is provided with the spout, the inside activity of spout is provided with the rubber support board, the fixed mount pad that is provided with in rubber support board top, mount pad top one end is fixed between a plurality of first abatvoix and is provided with dustproof filter screen, the one end that dustproof filter screen was.

Preferably, the second placing grooves are formed in the outer sides of the air inlet and the air outlet at the two ends of the outer portion of the shell.

Preferably, a plurality of telescopic rods are evenly arranged at the bottom end inside the second placing groove, and a second sound-absorbing plate is fixedly arranged between the ends, far away from the shell, of the telescopic rods.

Preferably, the second is inside to be provided with the rubber gasbag in the fixed second abatvoix bottom, the outside one side of casing all is fixed in second standing groove one side and is provided with a plurality of breather pipes, the one end and the rubber gasbag fixed connection of breather pipe, the breather pipe is close to the fixed valve that is provided with of one end of casing.

Preferably, a first handle is fixedly arranged at the bottom of the mounting seat.

Preferably, one end of the rubber supporting plate is fixedly provided with a second handle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up dust and peculiar smell in dustproof filter screen and the active carbon filter screen can detach the air through this silencer respectively, thereby improved the air quality of supplying air in the tuber pipe of being connected with this silencer, if the inside dustproof filter screen of casing and active carbon filter screen live time are of a specified duration, need change, only need take the rubber support plate out along the spout, just can take out the mount pad of installing dustproof filter screen and active carbon filter screen from the casing, make to change dustproof filter screen and active carbon filter screen and become simple swift.

2. The utility model discloses still be provided with the second standing groove in the air inlet and the gas outlet outside, be connected the completion back at casing and tuber pipe, some inflatable tool of accessible aerify to rubber air bag from the breather pipe, rubber air bag is through aerifing meeting jack-up second abatvoix to make the second abatvoix can plug up the gap between casing and the tuber pipe, can effectively avoid the noise in the tuber pipe to ooze from the gap that casing and tuber pipe are connected, thereby further improved the noise cancelling effect of making an uproar that falls of silencer.

Drawings

Fig. 1 is a schematic view of the overall structure of a cavity impedance composite muffler of the present invention;

FIG. 2 is a side view of a cavity impedance composite muffler of the present invention;

fig. 3 is an enlarged schematic view of a position a in fig. 1 of the cavity impedance composite muffler of the present invention.

In the figure: 1. a housing; 2. an air inlet; 3. an air outlet; 4. a first sound-absorbing panel; 5. a resistant cavity; 6. a flange plate; 7. a first placing groove; 8. a chute; 9. a rubber support plate; 10. a mounting seat; 11. a dustproof filter screen; 12. an active carbon filter screen; 13. a second placing groove; 14. a telescopic rod; 15. a second sound-absorbing panel; 16. a rubber air bag; 17. a breather pipe; 18. a valve; 19. a first handle; 20. a second handle.

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. 1-3, the present invention provides a technical solution: a cavity impedance composite muffler comprises a shell 1, wherein one end in the shell 1 is provided with an air inlet 2, an air outlet 3 is arranged at one end of the interior of the shell 1 far away from the air inlet 2, a plurality of first sound-absorbing boards 4 are uniformly arranged in the shell 1, a reactive cavity 5 is arranged in the shell 1 at one side of each of the first sound-absorbing plates 4, flanges 6 are fixedly arranged at two ends of the outer part of the shell 1, a first placing groove 7 is arranged at the bottom end inside the shell 1, a sliding groove 8 is fixedly arranged at the bottom end inside the first placing groove 7, a rubber supporting plate 9 is movably arranged in the chute 8, a mounting seat 10 is fixedly arranged above the rubber supporting plate 9, a dustproof filter screen 11 is fixedly arranged between the first sound-absorbing plates 4 at one end of the top of the mounting seat 10, and an activated carbon filter screen 12 is arranged between the first sound-absorbing boards 4 at one end of the top of the mounting seat 10, which is far away from the dustproof filter screen 11.

Second placing grooves 13 are formed in the outer sides of the air inlet 2 and the air outlet 3 at the two ends of the outer part of the shell 1, and a second sound-absorbing plate 15 and a rubber air bag 16 are placed through the second placing grooves 13; a plurality of telescopic rods 14 are uniformly arranged at the bottom end inside the second placing groove 13, a second sound-absorbing plate 15 is fixedly arranged between the ends, far away from the shell 1, of the telescopic rods 14, the telescopic rods 14 are used for supporting the second sound-absorbing plate 15, gaps between the shell 1 and an air pipe are blocked through the second sound-absorbing plate 15, and noise in the air pipe can be effectively prevented from seeping out from the gaps between the shell 1 and the air pipe; a rubber air bag 16 is fixedly arranged at the bottom of a second sound-absorbing plate 15 in the second interior, a plurality of vent pipes 17 are fixedly arranged on one side of the exterior of the shell 1 and on one side of the second placing groove 13, one ends of the vent pipes 17 are fixedly connected with the rubber air bag 16, a valve 18 is fixedly arranged at one end of each vent pipe 17 close to the shell 1, and the vent pipes 17 are used for ventilating and expanding the rubber air bag 16, so that the second sound-absorbing plate 15 can block gaps between the shell 1 and air pipes; a first handle 19 is fixedly arranged at the bottom of the mounting seat 10, and the mounting seat 10 is convenient for a worker to draw out by arranging the first handle 19; rubber support plate 9's one end is fixed and is provided with second handle 20, can make things convenient for staff's extraction rubber support plate 9 through setting up second handle 20.

The working principle is as follows: the silencer is connected with an air pipe through a flange 6, air enters from an air inlet 2 and is discharged from an air outlet 3, noise reduction treatment on noise propagated in a pipeline is completed through a plurality of first sound-absorbing boards 4 in a shell 1, dust in the air is filtered through a dustproof filter screen 11 in the process of passing the air, and peculiar smell removal work with a certain effect on the air is completed through an active carbon filter screen 12, so that the air quality of air supplied in the air pipe connected with the silencer is improved, if the dustproof filter screen 11 and the active carbon filter screen 12 in the shell 1 are used for too long time and need to be replaced, a mounting seat 10 provided with the dustproof filter screen 11 and the active carbon filter screen 12 can be taken out from the shell 1 only by taking out a rubber supporting plate 9 along a sliding groove 8, so that the dustproof filter screen 11 and the active carbon filter screen 12 can be replaced simply and quickly, the sealing performance in the shell 1 can be ensured by supporting through the arrangement of the rubber supporting plate 9 and the sliding groove 8; after this device is connected with the tuber pipe completion, open valve 18, some inflatable tool of accessible aerify to rubber air bag 16 from breather pipe 17, rubber air bag 16 can jack up second abatvoix 15 through aerifing to make second abatvoix 15 plug up the gap between casing 1 and the tuber pipe, can effectively avoid the noise in the tuber pipe to ooze from the gap that casing 1 and tuber pipe are connected, thereby further improved the noise cancelling effect of making an uproar that falls of silencer.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A cavity impedance composite muffler includes a housing (1), characterized in that: an air inlet (2) is formed in one end inside the shell (1), an air outlet (3) is formed in one end, far away from the air inlet (2), inside the shell (1), a plurality of first sound-absorbing boards (4) are uniformly arranged inside the shell (1), a resistance cavity (5) begins to be formed in one side of each of the plurality of first sound-absorbing boards (4) inside the shell (1), flange plates (6) are fixedly arranged at two ends outside the shell (1), a first placing groove (7) is formed in the bottom inside the shell (1), a sliding groove (8) is fixedly formed in the bottom inside the first placing groove (7), a rubber supporting plate (9) is movably arranged inside the sliding groove (8), a mounting seat (10) is fixedly arranged above the rubber supporting plate (9), and a dustproof filter screen (11) is fixedly arranged between the plurality of first sound-absorbing boards (4) at one end of the top of, and an activated carbon filter screen (12) is arranged between the first sound-absorbing boards (4) at one end of the top of the mounting seat (10), which is far away from the dustproof filter screen (11).

2. The cavity impedance composite muffler of claim 1, wherein: and second placing grooves (13) are formed in the outer sides of the air inlet (2) and the air outlet (3) at the two outer ends of the shell (1).

3. The cavity impedance composite muffler of claim 2, wherein: a plurality of telescopic rods (14) are uniformly arranged at the bottom end inside the second placing groove (13), and a second sound-absorbing board (15) is fixedly arranged between the ends, far away from the shell (1), of the telescopic rods (14).

4. The cavity impedance composite muffler of claim 3, wherein: the second is inside to be provided with rubber gasbag (16) in second abatvoix (15) bottom is fixed, casing (1) outside one side all is fixed in second standing groove (13) one side and is provided with a plurality of breather pipes (17), the one end and the rubber gasbag (16) fixed connection of breather pipe (17), breather pipe (17) are close to the fixed valve (18) that is provided with of one end of casing (1).

5. The cavity impedance composite muffler of claim 1, wherein: the bottom of the mounting seat (10) is fixedly provided with a first handle (19).

6. The cavity impedance composite muffler of claim 1, wherein: one end of the rubber supporting plate (9) is fixedly provided with a second handle (20).