CN213751948U

CN213751948U - Subway muffler

Info

Publication number: CN213751948U
Application number: CN202022920384.2U
Authority: CN
Inventors: 林文宝
Original assignee: Wuhan Jinliheng Stainless Steel Co ltd
Current assignee: Wuhan Jinliheng Stainless Steel Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-07-20
Anticipated expiration: 2030-12-08

Abstract

The utility model belongs to the technical field of the muffler, a subway muffler is related to, wherein, including the muffler body, four first fixed plates of muffler body side fixedly connected with, four the mounting hole has all been seted up in the first fixed plate, muffler body top fixedly connected with air-supply line, the positive fixedly connected with second fixed plate of muffler body inner wall, the second fixed plate has a plurality of swash plates, and is a plurality of through bolt threaded connection the equal fixedly connected with amortization in swash plate top is cotton. Its beneficial effect is, this subway muffler through setting up the mounting hole, when equipment need be changed or maintain, can make things convenient for the staff to install, dismantle the muffler body, through setting up the bolt, through screwing up the bolt, can realize fixing the swash plate, with the help of the cotton effect of amortization to the realization is carried out the purpose of the amortization of making an uproar for the first time to the noise, and whole device is rational in infrastructure, convenient to use, and the practicality is strong.

Description

Subway muffler

Technical Field

The utility model belongs to the technical field of the muffler, concretely relates to subway muffler.

Background

Silencers are a device that prevents sound transmission while allowing airflow through, and are an important measure for eliminating aerodynamic noise. The silencer is a device for reducing noise, which is arranged on an airflow channel of air power equipment (such as a blower, an air compressor, a boiler exhaust port, a generator, a water pump and other equipment with high noise at an exhaust port) or in an air inlet and exhaust system.

But the amortization structure of a lot of subway silencers at present is more single, and noise reduction effect is poor, and simultaneously, the installation and the dismantlement of most silencers are inconvenient, when equipment need be changed and the maintenance, have increased staff's the dismantlement degree of difficulty, waste time and energy, and the practicality is poor.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a subway muffler, it has solved the noise cancelling effect poor with dismantle inconvenient technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: a subway silencer comprises a silencer body, wherein four first fixing plates are fixedly connected to the side surface of the silencer body, mounting holes are formed in the four first fixing plates, the top of the silencer body is fixedly connected with an air inlet pipe, the front side of the inner wall of the silencer body is fixedly connected with a second fixing plate, the second fixing plate is connected with a plurality of inclined plates through bolt threads, the tops of the inclined plates are fixedly connected with silencing cotton, the side surface of the inner wall of the silencer body is fixedly connected with a second fixed block, the front side of the second fixed block is movably connected with a movable plate through a second pin shaft, the top of the movable plate is fixedly connected with silencing cotton, the side surface of the inner wall of the silencer body is fixedly connected with a bearing, the bearing is internally provided with a rotating shaft in a penetrating way, the surface of the rotating shaft is fixedly connected with a rotating drum, and the surface of the rotating drum is provided with a plurality of silencing holes.

As a further aspect of the present invention: the side surface of the inner wall of the silencer body is fixedly connected with a silencing layer.

As a further aspect of the present invention: the silencer body inner wall side fixedly connected with first fixed block, first fixed block front side has first movable block through first round pin axle swing joint, fly leaf bottom fixedly connected with third fixed block, third fixed block front side has the second movable block through third round pin axle swing joint, fixedly connected with telescopic link between second movable block and the first movable block, the return spring has been cup jointed on the telescopic link surface, return spring's both ends difference fixed connection is in first movable block and second movable block side.

As a further aspect of the present invention: a plurality of air outlets are formed in the bottom of the silencer body.

As a further aspect of the present invention: the silencer is characterized in that a groove is formed in the side face of the silencer body, and a silencing screen plate is connected in the groove in a sliding mode.

As a further aspect of the present invention: the silencer body front side has the sealing door through hinge swing joint, sealing door front side fixedly connected with handle.

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

1. this subway muffler through setting up the mounting hole, when equipment need be changed or maintain, can make things convenient for the staff to install, dismantle the muffler body, through setting up the bolt, through screwing up the bolt, can realize fixing the swash plate, with the help of the cotton effect of amortization to the realization is carried out the purpose of the amortization of making an uproar for the first time to the noise.

2. This subway muffler, pivot can drive the rotary drum and rotate under the effect of noise impact, with the help of the effect of noise silencing hole to rotate absorbent purpose to the noise, and then fall the amortization of making an uproar once more, with the help of recess 10 and amortization otter board 11's sliding connection effect, make things convenient for the user of service to the change of amortization otter board 11.

3. This subway muffler through setting up the amortization layer, can fall the purpose of making an uproar once more to the noise, through setting up the fly leaf, under the condition of fly leaf atress, with the help of the mobile action of first round pin axle, second round pin axle and third round pin axle, under the elastic fit of return spring and under the flexible cooperation of telescopic link, can drive the fly leaf and move about from top to bottom to carry out the better purpose of making an uproar of falling that adsorbs the noise, whole device is rational in infrastructure, convenient to use, the practicality is strong.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a front view section of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure of the present invention at B in FIG. 1;

fig. 4 is a schematic three-dimensional structure diagram of the silencer body of the present invention;

in the figure: 1. a first fixing plate; 2. a muffler body; 3. a bearing; 4. a rotating drum; 5. a rotating shaft; 6. a sound-deadening layer; 7. an air inlet pipe; 8. silencing cotton; 9. a silencing hole; 10. a groove; 11. a silencing screen plate; 12. an air outlet; 13. a first fixed block; 14. a first pin shaft; 15. a first movable block; 16. a second fixed block; 17. a second pin shaft; 18. a movable plate; 19. a third fixed block; 20. a third pin shaft; 21. a second movable block; 22. a return spring; 23. a telescopic rod; 24. a second fixing plate; 25. a sloping plate; 26. a bolt; 27. mounting holes; 28. a hinge; 29. a sealing door; 30. a 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.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a subway muffler, including muffler body 2, four first fixed plates 1 of 2 side fixedly connected with of muffler body, mounting hole 27 has all been seted up in four first fixed plates 1, through setting up mounting hole 27, when equipment needs to be changed or maintain, can make things convenient for the staff to install muffler body 2, dismantle, 2 top fixedly connected with air-supply line 7 of muffler body, 2 front fixedly connected with second fixed plate 24 of inner wall of muffler body, second fixed plate 24 has a plurality of swash plates 25 through 26 threaded connection of bolt, the equal fixedly connected with amortization cotton 8 in a plurality of swash plate 25 tops, through setting up bolt 26, through screwing up bolt 26, can realize fixing swash plate 25, with the help of the effect of amortization cotton 8, thereby realize making an uproar's purpose of making an uproar of falling for the first time the noise.

2 inner wall side fixedly connected with second fixed block 16 of muffler body, there is fly leaf 18 second fixed block 16 front side through second round pin axle 17 swing joint, the cotton 8 of the equal fixedly connected with amortization in fly leaf 18 top, 2 inner wall side fixedly connected with bearings 3 of muffler body, wear to be equipped with pivot 5 in the bearing 3, 5 fixed surface in pivot are connected with rotary drum 4, a plurality of bloops 9 have been seted up on the 4 surfaces of rotary drum, pivot 5 is under the effect of noise impact force, can drive rotary drum 4 and rotate, with the help of the effect of bloop 9, thereby rotate absorbent purpose to the noise, and then fall the amortization of making an uproar once more.

Specifically, the side surface of the inner wall of the silencer body 2 is fixedly connected with a silencing layer 6, the silencing layer 6 is arranged, the noise can be reduced again, the side surface of the inner wall of the silencer body 2 is fixedly connected with a first fixed block 13, the front side of the first fixed block 13 is movably connected with a first movable block 15 through a first pin shaft 14, through the arrangement of a movable plate 18, under the condition that the movable plate 18 is stressed, the movable plate 18 can be driven to move up and down under the elastic matching of a return spring 22 and the telescopic matching of a telescopic rod 23 under the action of the first pin shaft 14, a second pin shaft 17 and a third pin shaft 20, so that the purpose of better absorbing and reducing the noise is achieved, the bottom of the movable plate 18 is fixedly connected with a third fixed block 19, the front side of the third fixed block 19 is movably connected with a second movable block 21 through a third pin shaft 20, and the telescopic rod 23 is fixedly connected between the second movable block 21 and the first movable block 15, the surface of the telescopic rod 23 is sleeved with a return spring 22, and two ends of the return spring 22 are respectively and fixedly connected to the side surfaces of the first movable block 15 and the second movable block 21.

Specifically, 2 bottoms of muffler body have seted up a plurality of

air outlet

12, and 2 sides of muffler body have seted up fluted 10, and sliding connection has amortization otter board 11 in the recess 10, with the help of the sliding connection effect of recess 10 and amortization otter board 11, makes things convenient for user of service to the change of

amortization otter board

11, and 2 front sides of muffler body have sealing door 29, sealing door 29 front side fixedly connected with handle 30 through hinge 28 swing joint.

The utility model discloses a theory of operation does:

s1, when in use, a user can install the silencer body 2 at a proper position through the installation hole 27, then noise enters the silencer body 2 through the air inlet pipe 7, and primary noise reduction and silencing are carried out through the silencing cotton 8 on the top of the inclined plate 25;

s2, part of noise passes through the movable plate 18, and under the condition that the movable plate 18 is stressed, the movable plate 18 is driven to move up and down under the elastic matching of the return spring 22 and the telescopic matching of the telescopic rod 23 by virtue of the moving action of the first pin shaft 14, the second pin shaft 17 and the third pin shaft 20, so that the noise is better absorbed and reduced;

s3, the noise that does not amortize and through pivot 5 again, pivot 5 is under the effect of noise impact force, it rotates to drive rotary drum 4, effect with the help of bloop 9, thereby rotate the noise and adsorb, and then fall the amortization of making an uproar once more, with the help of the amortization of amortization otter board 11, thereby filter the noise, the amortization, the noise conversion after the amortization finishes is wind from air outlet 12 outwards discharge, under the cooperation of multiple amortization structure, thereby carry out better amortization to the noise, and then noise abatement pollutes, when using needs to maintain amortization otter board 11 or amortization cotton 8, thereby open sealing door 29 and maintain corresponding structure can, when needs are changed muffler body 2, under the cooperation of mounting hole 27, the user of service dismantles it, it can to change.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A subway muffler, includes muffler body (2), its characterized in that: the silencer is characterized in that four first fixing plates (1) are fixedly connected to the side face of the silencer body (2), mounting holes (27) are formed in the four first fixing plates (1), an air inlet pipe (7) is fixedly connected to the top of the silencer body (2), a second fixing plate (24) is fixedly connected to the front side of the inner wall of the silencer body (2), the second fixing plate (24) is connected with a plurality of inclined plates (25) through bolts (26) in a threaded manner, silencing cotton (8) is fixedly connected to the tops of the inclined plates (25), a second fixing block (16) is fixedly connected to the side face of the inner wall of the silencer body (2), a movable plate (18) is movably connected to the front side of the second fixing block (16) through a second pin shaft (17), silencing cotton (8) is fixedly connected to the tops of the movable plate (18), and a bearing (3) is fixedly connected to the side face of the inner wall of the silencer body (2), the bearing (3) is internally provided with a rotating shaft (5) in a penetrating manner, the surface of the rotating shaft (5) is fixedly connected with a rotating drum (4), and the surface of the rotating drum (4) is provided with a plurality of silencing holes (9).

2. A subway silencer as claimed in claim 1, wherein: the side surface of the inner wall of the silencer body (2) is fixedly connected with a silencing layer (6).

3. A subway silencer as claimed in claim 1, wherein: silencer body (2) inner wall side fixedly connected with first fixed block (13), first fixed block (13) front side has first movable block (15) through first round pin axle (14) swing joint, fly leaf (18) bottom fixedly connected with third fixed block (19), third fixed block (19) front side has second movable block (21) through third round pin axle (20) swing joint, fixedly connected with telescopic link (23) between second movable block (21) and first movable block (15), return spring (22) has been cup jointed on telescopic link (23) surface, return spring (22)'s both ends difference fixed connection is in first movable block (15) and second movable block (21) side.

4. A subway silencer as claimed in claim 1, wherein: the bottom of the silencer body (2) is provided with a plurality of air outlets (12).

5. A subway silencer as claimed in claim 1, wherein: the silencer is characterized in that a groove (10) is formed in the side face of the silencer body (2), and a silencing screen plate (11) is connected in the groove (10) in a sliding mode.

6. A subway silencer as claimed in claim 1, wherein: the silencer is characterized in that the front side of the silencer body (2) is movably connected with a sealing door (29) through a hinge (28), and the front side of the sealing door (29) is fixedly connected with a handle (30).