CN211819850U

CN211819850U - Improved pneumatic air gun silencer

Info

Publication number: CN211819850U
Application number: CN202020467685.1U
Authority: CN
Inventors: 陈杰; 陈君瑞; 其他发明人请求不公开姓名
Original assignee: Ningbo Yongchang Public Transport Co Ltd
Current assignee: Ningbo Yongchang Public Transport Co Ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-10-30
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses an improved pneumatic air cannon silencer, the exhaust hole of the pneumatic air cannon body is communicated with a first pipe body, one end of the first pipe body is communicated with a second pipe body, the end of the second pipe body, which is far away from the first pipe body, is communicated with a third pipe body, the bottom of the shell is in threaded connection with the outer side wall of the third pipe body, the bottom of the shell is fixedly connected with a fixed plate, through the matching of a central pipe, an end cover and filter paper, the exhaust filtration is carried out to achieve the silencing effect, the shaking of the pneumatic air cannon body generated in the using process enables the filter paper to slightly rotate under the action of a bearing, a connecting shaft and the central pipe, so that the gas is better filtered, when the air of the air cannon flows to the first silencing metal net and the second silencing metal net, the air flow of the noise can partially penetrate and reflect, and the reflected air flow can form the effect of absorbing the noise, the penetrated asbestos is further eliminated through noise reduction, so that the noise is effectively reduced when the air cannon works.

Description

Improved pneumatic air gun silencer

Technical Field

The utility model relates to a pneumatic gun technical field specifically is a pneumatic gun muffler of modified.

Background

The air cannon is used as a pneumatic tool, the noise is as loud as a cannon sound when the air cannon works, so the air cannon is named as a pneumatic wrench, the power of the air cannon is derived from compressed air output by an air compressor, and when the compressed air enters an air cannon cylinder, an impeller inside the air cannon cylinder is driven to rotate to generate rotating power.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic wind big gun muffler of modified 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: an improved pneumatic air cannon silencer comprises a pneumatic air cannon body and a shell, wherein an exhaust hole of the pneumatic air cannon body is communicated with a first pipe body, one end of the first pipe body is communicated with a second pipe body, one end of the second pipe body, which is far away from the first pipe body, is communicated with a third pipe body, the bottom of the shell is in threaded connection with the outer side wall of the third pipe body, the bottom of the shell is fixedly connected with a fixing plate, the top of the fixed plate is fixedly connected with an inverted trapezoidal groove body through a screw, a central tube is arranged inside the shell, end covers are sleeved on both sides of the outer wall of the central tube, filter paper is fixedly connected on one opposite side of the two end covers, both ends of the central tube are connected with connecting shafts through screws, a bearing is arranged inside the shell, the inner ring of the bearing is welded at one end of the connecting shaft, and the outer ring of the bearing is fixedly connected to the inner side wall of the shell.

As further preferable in the present technical solution: the one end of third body runs through in the bottom of fixed plate, the inside wall from the top down of the trapezoidal cell body of falling fixedly connected with second plectane and first plectane in proper order, first through-hole has been seted up at the top of first plectane, the second through-hole has been seted up at the top of second plectane, the diameter of second through-hole is greater than the diameter of first through-hole, the logical groove that the equidistance distributes is all seted up at the top of first plectane and second plectane.

As further preferable in the present technical solution: the pneumatic air cannon is characterized in that one side, close to the top of the shell, of the pneumatic air cannon body is fixedly connected with a fixing frame through screws, and the outer side wall, far away from the first pipe body, of the second pipe body is fixedly connected to the top of the fixing frame.

As further preferable in the present technical solution: the third body is located the inside lateral wall of casing and has cup jointed the seal cover, the laminating of the lateral wall of seal cover is connected in the inside wall of fixed plate.

As further preferable in the present technical solution: the inner side wall of the shell is bonded with silencing asbestos.

As further preferable in the present technical solution: the utility model discloses a silencer, including casing, first amortization metal mesh and second amortization metal mesh, be provided with the cavity between first amortization metal mesh and amortization asbestos and the second amortization metal mesh, the inside roof and the diapire fixed connection of casing.

Compared with the prior art, the beneficial effects of the utility model are that: through the effectual gas that contracts of trapezoidal cell body down to in certain extent, then first plectane and the separation of second plectane reflection of each other, the carminative noise of preliminary elimination, and can disperse it through first through-hole and second through-hole, through the center tube, the cooperation of end cover and filter paper, it filters in order to reach the noise cancelling effect to exhaust, the rocking of the pneumatic air cannon body that produces in the use, at the bearing, even under the effect of axle and center tube, make filter paper can slightly rotate, and then make the better filtration of gas, when the air current of wind cannon arrived first amortization metal mesh and second amortization metal mesh, the meeting through part of the air current of noise pierces through and reflects, the effect of noise absorption many times can be formed to the reflection, the asbestos of rethreading through the amortization, further the elimination can make the effective noise reduction of air cannon during operation.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the housing of the present invention;

FIG. 3 is a schematic structural view of the filter paper of the present invention;

FIG. 4 is a schematic view of the internal structure of the inverted trapezoidal groove of the present invention;

fig. 5 is a schematic structural diagram of the first circular plate and the second circular plate of the present invention.

In the figure: 1. a pneumatic gun body; 2. a first pipe body; 3. a second tube body; 4. a fixed mount; 5. a housing; 6. a bearing; 7. a first noise reduction metal mesh; 8. a second sound-deadening expanded metal; 9. sound-deadening asbestos; 10. a cavity; 11. a third tube; 12. sealing sleeves; 13. a fixing plate; 14. a connecting shaft; 15. a central tube; 16. filtering paper; 17. a first circular plate; 18. an inverted trapezoidal groove body; 19. a second circular plate; 20. a through groove; 21. an end cap; 22. a first through hole; 23. a second via.

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.

Example 1

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a pneumatic wind big gun muffler of modified, including pneumatic wind big gun body 1 and casing 5, the exhaust hole intercommunication of pneumatic wind big gun body 1 has first body 2, the one end intercommunication of first body 2 has second body 3, the one end intercommunication that first body 2 was kept away from to second body 3 has third body 11, the bottom threaded connection of casing 5 is in the lateral wall of third body 11, the bottom fixedly connected with fixed plate 13 of casing 5, screw fixedly connected with inverted trapezoid groove 18 is passed through at the top of fixed plate 13, the inside of casing 5 is provided with center tube 15, end cover 21 has all been cup jointed to the outer wall both sides of center tube 15, two relative one side fixedly connected with filter paper 16 of end cover 21, the both ends of center tube 15 all have connecting shaft 14 through screwed connection, the inside of casing 5 is provided with bearing 6, the inner circle of bearing 6 welds in connecting shaft 14's one end, the outer lane fixed connection of bearing 6 is in casing 5.

In this embodiment, specifically: one end of the third pipe body 11 penetrates the bottom of the fixing plate 13, the inner side wall of the inverted trapezoidal groove body 18 is fixedly connected with a second circular plate 19 and a first circular plate 17 from top to bottom in sequence, a first through hole 22 is formed in the top of the first circular plate 17, a second through hole 23 is formed in the top of the second circular plate 19, the diameter of the second through hole 23 is larger than that of the first through hole 22, through grooves 20 are formed in the tops of the first circular plate 17 and the second circular plate 19 and are distributed at equal intervals, through the arrangement, when the exhaust hole of the pneumatic air cannon body 1 exhausts air and enters the shell 5, the first circular plate 17 and the second circular plate 19 are used for blocking and preliminarily eliminating the exhaust noise, the entered partial air can be dispersed through the first through hole 22 and the second through hole 23 on the first circular plate 17 and the second circular plate 19, and the gas is effectively contracted to a certain range through the inverted trapezoidal groove body 18, so that the transmission of sound waves is reduced.

In this embodiment, specifically: pneumatic air cannon body 1 is close to top one side of casing 5 and passes through screw fixedly connected with mount 4, and the lateral wall fixed connection that first body 2 was kept away from to second body 3 is in the top of mount 4, and through above setting, mount 4 fixes second body 3, and then further supports casing 5 to fix through the screw, convenient dismantlement and installation.

In this embodiment, specifically: the third body 11 is located the inside lateral wall of casing 5 and has cup jointed seal cover 12, and the lateral wall laminating of seal cover 12 is connected in the inside wall of fixed plate 13, through above setting, reduces the vibration that produces between exhaust gas and third body 11 and the fixed plate 13, can protect third body 11 again.

Example 2

In this embodiment, specifically: the inside wall of casing 5 bonds and has amortization asbestos 9, through above setting, from the penetrating noise air current of first amortization metal mesh 7 and second amortization metal mesh 8, further eliminates through amortization asbestos 9.

In this embodiment, specifically: the inside roof and the diapire fixed connection of casing 5 have first amortization metal mesh 7 and second amortization metal mesh 8, be provided with cavity 10 between first amortization metal mesh 7 and amortization asbestos 9 and the second amortization metal mesh 8, through above setting, when the air current of wind cannon arrives first amortization metal mesh 7 and second amortization metal mesh 8, can pass through part and reflection partly of the air current of noise, and then can form the effect of absorbing the noise many times, again through amortization asbestos 9's sound absorption, enable the wind cannon during operation effective noise reduction, the noise that makes the wind cannon produce further reduces.

Working principle or structure principle, when in use, when the exhaust hole of the pneumatic air cannon body 1 exhausts and enters the shell 5, the first circular plate 17 and the second circular plate 19 are used for blocking and preliminarily eliminating the exhaust noise, and the exhaust noise is mutually reflected between the first circular plate 17 and the second circular plate 19, then part of the entering gas can be dispersed through the first through hole 22 and the second through hole 23, the gas is effectively contracted to a certain range through the inverted trapezoid groove body 18, the transmission of sound waves is reduced, the exhaust filtering is carried out through the filter paper 16 on the central pipe 15 so as to achieve the silencing effect, then the shaking of the pneumatic air cannon body 1 generated in the use process is carried out, under the action of the bearing 6, the connecting shaft 14 and the central pipe 15, the filter paper 16 can rotate around, so that the gas is better filtered, when the air of the air cannon flows to the first silencing metal net 7 and the second silencing metal net 8, the air current of noise can pass through part and reflection partly, and then can form the effect of many times absorption noise, from the penetrating noise air current of first amortization metal mesh 7 and second amortization metal mesh 8, through amortization asbestos 9 again, further eliminate and enable the effective noise reduction of wind big gun during operation.

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. The utility model provides a pneumatic wind big gun muffler of modified, includes pneumatic wind big gun body (1) and casing (5), its characterized in that: the air blast gun is characterized in that an exhaust hole of the pneumatic air blast gun body (1) is communicated with a first pipe body (2), one end of the first pipe body (2) is communicated with a second pipe body (3), one end, far away from the first pipe body (2), of the second pipe body (3) is communicated with a third pipe body (11), the bottom of the shell (5) is in threaded connection with the outer side wall of the third pipe body (11), the bottom of the shell (5) is fixedly connected with a fixing plate (13), the top of the fixing plate (13) is fixedly connected with an inverted trapezoidal groove body (18) through screws, a central pipe (15) is arranged inside the shell (5), end covers (21) are sleeved on two sides of the outer wall of the central pipe (15), filter paper (16) is fixedly connected to one side, opposite to the end covers (21), connecting shafts (14) are connected to two ends of the central pipe (15) through screws, a bearing (6), the inner ring of the bearing (6) is welded at one end of the connecting shaft (14), and the outer ring of the bearing (6) is fixedly connected to the inner side wall of the shell (5).

2. The improved pneumatic air cannon silencer of claim 1, wherein: the one end of third body (11) runs through in the bottom of fixed plate (13), inside wall from the top down of trapezoidal cell body (18) is fixedly connected with second plectane (19) and first plectane (17) in proper order, first through-hole (22) have been seted up at the top of first plectane (17), second through-hole (23) have been seted up at the top of second plectane (19), the diameter of second through-hole (23) is greater than the diameter of first through-hole (22), logical groove (20) that the equidistance distributes are all seted up at the top of first plectane (17) and second plectane (19).

3. The improved pneumatic air cannon silencer of claim 1, wherein: pneumatic air cannon body (1) is close to top one side of casing (5) and passes through screw fixed connection mount (4), lateral wall fixed connection in the top of mount (4) that first body (2) were kept away from in second body (3).

4. The improved pneumatic air cannon silencer of claim 1, wherein: the outer side wall of the third pipe body (11) inside the shell (5) is sleeved with a sealing sleeve (12), and the outer side wall of the sealing sleeve (12) is attached to the inner side wall of the fixing plate (13).

5. The improved pneumatic air cannon silencer of claim 1, wherein: the inner side wall of the shell (5) is bonded with silencing asbestos (9).

6. The improved pneumatic air cannon silencer of claim 1, wherein: the utility model discloses a silencer, including casing (5), the inside roof and the diapire fixed connection of casing (5) have first amortization metal mesh (7) and second amortization metal mesh (8), be provided with cavity (10) between first amortization metal mesh (7) and amortization asbestos (9) and second amortization metal mesh (8).