CN216342672U

CN216342672U - Air outlet silencer

Info

Publication number: CN216342672U
Application number: CN202123030050.9U
Authority: CN
Inventors: 周林; 蔡荣; 陈文�; 雷宇; 陈林洲
Original assignee: Yichang Kainuo Electric Co ltd
Current assignee: Yichang Kainuo Electric Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-04-19
Anticipated expiration: 2031-12-03

Abstract

The utility model provides an air outlet silencer, which comprises a silencing barrel, an air inlet barrel connected with the lower end of the silencing barrel and a continuously bent air outlet pipe arranged in the silencing barrel, wherein silencing cotton is wrapped outside the air outlet pipe, the cross section of the air inlet barrel is square, a filter screen for separating the air inlet barrel is fixedly connected in the air inlet barrel, a hairbrush strip which is positioned above the filter screen and brushes the filter screen is movably arranged in the air inlet barrel, and a collecting box which is synchronously moved with the hairbrush strip and is positioned below the filter screen is also arranged in the air inlet barrel. In the above embodiment, the filter screen can filter tiny dust in the air, prevents that these dusts from being adsorbed by the amortization cotton in the amortization section of thick bamboo, and when the air outlet stopped outwards to exhaust, the brush strip of filter screen top can carry out effectual cleanness to the filter screen, and the collection box of filter screen below can synchronous motion, collects the dust that clean filter screen dropped in real time.

Description

Air outlet silencer

Technical Field

The utility model relates to the technical field of silencer equipment, in particular to an air outlet silencer.

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 which is arranged at an air outlet of air power equipment (such as an air blower, an air compressor, a boiler exhaust port, a generator, a water pump and other equipment with high noise at an exhaust port) and reduces noise. The principle is as follows: the silencer is provided with a porous sound-absorbing material, when sound waves enter the silencer, a part of sound energy is rubbed in pores of the porous material and is converted into heat energy to be consumed, and finally the effect of weakening the sound waves is achieved.

The air outlet of the plant aerodynamic equipment often produces large noise to cause noise pollution, and a silencer is required to be installed for noise reduction treatment. The air outlet exhaust air easily has tiny dust, and the easy amortization cotton that is adsorbed in the muffler of these dusts causes the noise cancelling effect to descend, and dust collector that current air outlet muffler has often needs to carry out artifical cleanness often, and the step is loaded down with trivial details. The utility model designs an air outlet silencer which can automatically clean a dust removal device arranged on the silencer and collect dust when an air outlet stops blowing air.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides an air outlet silencer, which solves the problems that a dust removal device of the existing air outlet silencer is always required to be cleaned manually and the steps are complex.

According to the embodiment of the utility model, the air outlet silencer comprises a silencing barrel, an air inlet barrel connected with the lower end of the silencing barrel and a continuously bent air outlet pipe arranged in the silencing barrel, silencing cotton is wrapped outside the air outlet pipe, the cross section of the air inlet barrel is square, a filter screen for separating the air inlet barrel is fixedly connected in the air inlet barrel, a brush strip which is positioned above the filter screen and brushes the filter screen is movably arranged in the air inlet barrel, and a collecting box which is synchronously moved with the brush strip and is positioned below the filter screen is also arranged in the air inlet barrel.

In the above embodiment, when the outside exhaust wind of air outlet of aerodynamic force equipment got into an air inlet section of thick bamboo when the filter screen, the filter screen can filter tiny dust in the air, prevent that these dust from being adsorbed by the amortization cotton in the amortization section of thick bamboo, cause the noise cancelling effect to descend, the brush strip that the filter screen top set up is portable, when the air outlet stops outside wind, the brush strip can carry out effectual cleanness to the filter screen, the collection box that the filter screen below set up can follow brush strip synchronous motion, collect the dust that the clean filter screen of brush strip dropped in real time.

Further, still be provided with in the air inlet section of thick bamboo with air inlet section of thick bamboo inner wall rotate the first screw rod and the second screw rod of connecting and with air inlet section of thick bamboo inner wall fixed connection's first slide bar and second slide bar, wherein, first screw rod with first slide bar is located filter screen top and install jointly on it the brush strip, the second screw rod with the second slide bar is located filter screen below and install jointly on it collect the box.

Further, the first slide bar is located above the first screw and the second slide bar is located above the second screw.

Further, there are first motor and second motor on the outer surface of the side wall of the air inlet cylinder, the first screw rod is close to one end of the first motor passes through the side wall of the air inlet cylinder and is connected with the output end of the first motor, the second screw rod is close to one end of the second motor passes through the side wall of the air inlet cylinder and is connected with the output end of the second motor.

Furthermore, a plurality of bristles are arranged at the lower end of the brush bar and are abutted to the filter screen.

Furthermore, an umbrella-shaped hood is arranged above the silencing tube, and the umbrella-shaped hood is connected with the silencing tube through two support columns.

Furthermore, an inverted umbrella-shaped cap positioned between the two support columns is further installed on the lower end face of the umbrella-shaped hood.

Furthermore, the upper end and the lower end of the air outlet pipe are respectively communicated with the space below the umbrella-shaped hood and the air inlet cylinder, and a plurality of small holes for communicating the inner space of the air outlet pipe with the silencing cotton are formed in the wall of the air outlet pipe.

Furthermore, a door is arranged on the outer wall of the air inlet cylinder.

Furthermore, a plurality of lifting lugs are arranged on the outer wall of the silencing barrel.

Compared with the prior art, the utility model has the following beneficial effects:

1. when air exhausted outwards from an air outlet of the aerodynamic equipment enters the air inlet cylinder and passes through the filter screen, the filter screen can filter fine dust in the air, and the dust is prevented from being adsorbed by silencing cotton in the silencing cylinder, so that the silencing effect is reduced;

2. the brush strips arranged above the filter screen can move, and when the air outlet stops exhausting air outwards, the brush strips can effectively clean the filter screen;

3. the collection box that the filter screen below set up can follow brush strip synchronous movement, collects the dust that the clean filter screen of brush strip dropped in real time.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 3 is a side view of the brush bar, filter screen and collection box of FIG. 2 taken in a relationship;

in the above drawings:

1. a silencing barrel; 2. an air inlet cylinder; 3. an air outlet pipe; 4. silencing cotton; 5. a filter screen; 6. a brush bar; 7. a collection box; 8. a first screw; 9. a second screw; 10. a first slide bar; 11. a second slide bar; 12. a first motor; 13. a second motor; 14. brushing; 15. an umbrella-shaped hood; 16. a support pillar; 17. an inverted umbrella-shaped cap; 18. a door; 19. and (7) lifting lugs.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

As shown in fig. 1, 2 and 3, the present embodiment provides an air outlet silencer, which includes a silencing cylinder 1, an air inlet cylinder 2 connected to a lower end of the silencing cylinder 1, and a continuously bent air outlet pipe 3 disposed in the silencing cylinder 1, wherein the air outlet pipe 3 is continuously bent to make sound waves continuously collide and generate a large amount of echoes, so as to increase a residence time of the sound waves in the silencing cylinder 1, the silencing cylinder 1 is connected to the air inlet cylinder 2 via a flange, the lower end of the air inlet cylinder 2 is provided with a flange, so as to facilitate installation and disassembly between the silencer provided by the present embodiment and an air outlet of an aerodynamic device, the air outlet pipe 3 is used for conveying noise generated by the aerodynamic device into the silencing cylinder 1 along with air, the air outlet pipe 3 is further wrapped with silencing cotton 4, the cotton silencing 4 has characteristics, heat insulation characteristics and environmental protection, the silencing cotton 4 can absorb energy of the sound waves propagated in the silencing cylinder 1, thereby play the effect of making an uproar of falling, the cross-section of an air inlet section of thick bamboo 2 is square, fixedly connected with is with its divided filter screen 5 in the air inlet section of thick bamboo 2, and filter screen 5 can filter aerodynamic equipment air outlet exhaust air, adsorbs the tiny dust in the air, thereby prevents that these dusts from being adsorbed by amortization cotton 4 and causing the influence to the noise cancelling effect, still can remove in the air inlet section of thick bamboo 2 and be provided with be located filter screen 5 top and to filter screen 5 brush strip 6, when aerodynamic equipment's air outlet stopped to outer exhaust air, brush strip 6 can carry out effectual cleanness to filter screen 5, still be provided with in the air inlet section of thick bamboo 2 with brush strip 6 synchronous motion and be located the collection box 7 of filter screen 5 below, collection box 7 can collect the dust that brush strip 6 cleaned filter screen 5 dropped in real time.

As shown in fig. 1, 2 and 3, a first screw 8 and a second screw 9 rotatably connected with the inner wall of the air inlet cylinder 2 and a first slide bar 10 and a second slide bar 11 fixedly connected with the inner wall of the air inlet cylinder 2 are further arranged in the air inlet cylinder 2, wherein the first screw 8 and the first slide bar 10 are located above the filter screen 5 and are jointly provided with the brush strip 6, the brush strip 6 is in threaded connection with the first screw 8 and is in sliding connection with the first slide bar 10, the brush strip 6 can reciprocate above the filter screen 5 by rotating the first screw 8, wherein the first slide bar 10 plays a limiting role, the second screw 9 and the second slide bar 11 are located below the filter screen 5 and are jointly provided with the collection box 7, the collection box 7 is in threaded connection with the second screw 9 and is in sliding connection with the second slide bar 11, and the collection box 7 can reciprocate below the filter screen by rotating the second screw 9, the second sliding rod 11 has a limiting effect, and the brush strips 6 and the collecting box 7 can move synchronously by synchronously rotating the first screw rod 8 and the second screw rod 9, so that the collecting box 7 can timely and accurately collect dust falling from the filter screen 5 cleaned by the brush strips 6.

As shown in fig. 1 and 3, the first slide bar 10 is located above the first screw 8 and the second slide bar 11 is located above the second screw 9, so that the arrangement improves the stability of the brush strip 6 and the collection box 7, which are respectively mounted thereon, in performing the reciprocating movement.

As shown in fig. 1 and 2, a first motor 12 and a second motor 13 are installed on the outer surface of the side wall of the air inlet cylinder 2, one end of the first screw 8 close to the first motor 12 penetrates through the side wall of the air inlet cylinder 2 and is connected with the output end of the first motor 12, one end of the second screw 9 close to the second motor 13 penetrates through the side wall of the air inlet cylinder 2 and is connected with the output end of the second motor 13, and the first motor 12 and the second motor 13 are respectively used for driving the first screw 8 and the second screw 9 to rotate.

As shown in fig. 1, 2 and 3, the lower end of the brush bar 6 is provided with a plurality of bristles 14, the bristles 14 are in contact with the filter screen 5, and when the brush bar 6 reciprocates above the filter screen 5 along with the rotation of the first screw 8, the bristles 14 can clean the surface of the filter screen 5.

As shown in fig. 1 and 2, an umbrella-shaped hood 15 is arranged above the silencing tube 1, the umbrella-shaped hood 15 is connected with the silencing tube 1 through two support columns 16, a flange is installed at the upper end of the silencing tube 1, the two support columns 16 are installed on the flange at the upper end of the silencing tube 1, and the arrangement of the umbrella-shaped hood 15 enables the silencer provided by the embodiment not to influence the air exhaust effect due to the change of the wind direction, and can also avoid the backflow of wind and rain.

As shown in fig. 1 and 2, an inverted umbrella-shaped cap 17 positioned between the two support columns 16 is further installed on the lower end surface of the umbrella-shaped hood 15, and the inverted umbrella-shaped cap 17 is arranged at the air outlet of the silencing tube 1, so that the discharged air can be guided conveniently and can be discharged into the external atmosphere more quickly.

As shown in fig. 1 and 2, the upper and lower ends of the air outlet pipe 3 are respectively communicated with the space below the umbrella-shaped hood 15 and the air inlet pipe 2, so that sound waves can be smoothly propagated from the air inlet pipe 2 to the silencing barrel 1 along with air to be silenced, and are finally conveyed to the outside, a plurality of small holes for communicating the inner space of the air outlet pipe 3 with silencing cotton 4 are formed in the pipe wall of the air outlet pipe 3, and the small holes formed in the pipe wall of the air outlet pipe 3 can facilitate the sound waves to be transmitted into the silencing cotton 4.

As shown in fig. 2, a door 18 is arranged on the outer wall of the air inlet drum 2, and the door 18 is arranged to facilitate workers to detach and regularly clean the brush strips 6, the filter screen 5 and the collection box 7 inside the air inlet drum 2.

As shown in fig. 1 and 2, the outer wall of the silencing barrel 1 is provided with a plurality of lifting lugs 19, and the lifting lugs 19 can facilitate the lifting of the silencer provided by the embodiment.

The embodiment has the following beneficial effects:

1. the air outlet pipe 3 is continuously bent, so that sound waves continuously collide to generate a large amount of echoes, and the detention time of the sound waves in the silencing barrel 1 is prolonged;

2. the air inlet cylinder 2 is also movably provided with a brush strip 6 which is positioned above the filter screen 5 and brushes the filter screen 5, when the air outlet of the aerodynamic equipment stops exhausting air outwards, the brush strip 6 can effectively clean the filter screen 5, the air inlet cylinder 2 is also internally provided with a collecting box 7 which moves synchronously with the brush strip 6 and is positioned below the filter screen 5, and the collecting box 7 can collect dust falling from the filter screen 5 cleaned by the brush strip 6 in real time;

3. by synchronously rotating the first screw 8 and the second screw 9, the synchronous movement of the brush strips 6 and the collection box 7 can be realized, so that the collection box 7 can timely and accurately collect dust falling from the filter screen 5 by the brush strips 6;

4. the arrangement of the umbrella-shaped blast cap 15 ensures that the silencer provided by the embodiment cannot influence the air exhaust effect due to the change of the wind direction, and can also avoid the backflow of wind and rain;

5. the inverted umbrella-shaped cap 17 is arranged at the air outlet of the silencing tube 1, so that the discharged air can be guided conveniently and can be discharged into the external atmosphere more quickly.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides an air outlet muffler, its characterized in that, including noise damping section of thick bamboo (1), with air inlet cylinder (2) and setting that noise damping section of thick bamboo (1) lower extreme is connected are in air-out pipe (3) of buckling in succession in noise damping section of thick bamboo (1), it is provided with amortization cotton (4) still to wrap up outside air-out pipe (3), the cross-section of air inlet cylinder (2) is square, fixedly connected with is with its divided filter screen (5) in air inlet cylinder (2), still can remove in air inlet cylinder (2) and be provided with and be located filter screen (5) top and right brush strip (6) that brush are brushed filter screen (5), still be provided with in air inlet cylinder (2) with brush strip (6) synchronous movement and be located collection box (7) of filter screen (5) below.

2. The air outlet silencer of claim 1, wherein a first screw (8) and a second screw (9) which are rotatably connected with the inner wall of the air inlet cylinder (2) and a first sliding rod (10) and a second sliding rod (11) which are fixedly connected with the inner wall of the air inlet cylinder (2) are further arranged in the air inlet cylinder (2), wherein the first screw (8) and the first sliding rod (10) are located above the filter screen (5) and are provided with the hairbrush strips (6) together, and the second screw (9) and the second sliding rod (11) are located below the filter screen (5) and are provided with the collection box (7) together.

3. An air outlet silencer according to claim 2, characterized in that the first slide bar (10) is located above the first screw (8) and the second slide bar (11) is located above the second screw (9).

4. An air outlet silencer according to claim 2, wherein a first motor (12) and a second motor (13) are mounted on the outer surface of the side wall of the air inlet cylinder (2), one end of the first screw (8) close to the first motor (12) penetrates through the side wall of the air inlet cylinder (2) and is connected with the output end of the first motor (12), and one end of the second screw (9) close to the second motor (13) penetrates through the side wall of the air inlet cylinder (2) and is connected with the output end of the second motor (13).

5. An air outlet silencer according to claim 2, wherein the lower end of the brush bar (6) is provided with a plurality of bristles (14), and the bristles (14) are abutted against the filter screen (5).

6. An air outlet silencer according to claim 5, characterized in that an umbrella-shaped hood (15) is arranged above the silencing tube (1), and the umbrella-shaped hood (15) is connected with the silencing tube (1) through two support columns (16).

7. An air outlet silencer according to claim 6, wherein an inverted umbrella-shaped cap (17) is further mounted on the lower end face of the umbrella-shaped hood (15) and located between the two support columns (16).

8. An air outlet silencer according to claim 6, wherein the upper and lower ends of the air outlet pipe (3) are respectively communicated with the space below the umbrella-shaped hood (15) and the air inlet drum (2), and the wall of the air outlet pipe (3) is provided with a plurality of small holes for communicating the inner space of the air outlet pipe (3) with the silencing cotton (4).

9. The air outlet silencer according to claim 8, wherein the outer wall of the air inlet drum (2) is provided with a door (18).

10. An air outlet silencer according to claim 1, characterized in that the outer wall of the silencing pot (1) is provided with a plurality of lifting lugs (19).