CN220753065U

CN220753065U - Silencer for pneumatic tool

Info

Publication number: CN220753065U
Application number: CN202322422813.7U
Authority: CN
Inventors: 孙爱民; 王志豪
Original assignee: Shanghai Quanying Machinery Co ltd
Current assignee: Shanghai Quanying Machinery Co ltd
Priority date: 2023-09-07
Filing date: 2023-09-07
Publication date: 2024-04-09
Anticipated expiration: 2033-09-07

Abstract

The utility model discloses a silencer for a pneumatic tool, which comprises a pneumatic tool main body, wherein a handheld part is arranged at the bottom of the pneumatic tool main body, a switch is arranged at the top of one side of the handheld part, an air inlet channel and an air outlet channel are formed in the handheld part, a pin is arranged in the air inlet channel, a conical silencing plate is arranged in the air outlet channel, a weight reducing groove is uniformly formed in the center of the periphery of the pneumatic tool main body, and a rear end cover is arranged at one end of the pneumatic tool main body.

Description

Silencer for pneumatic tool

Technical Field

The utility model relates to the technical field of pneumatic tools, in particular to a silencing device for a pneumatic tool.

Background

The pneumatic tool is mainly a tool which utilizes compressed air to drive a pneumatic motor to work to externally output kinetic energy, can be divided into a rotary type and a reciprocating type according to the basic working mode, and is mainly composed of a power output part, a working form conversion part, an air inlet and outlet path part, an operation start and stop control part, a tool shell and other main parts.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to provide a silencing device for a pneumatic tool, which is used for solving the problems of high noise, high production difficulty and high cost of a silencing structure of the existing pneumatic tool.

(II) summary of the utility model

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a silencing device for pneumatic tool, includes pneumatic tool main part, handheld portion is installed to pneumatic tool main part bottom, and handheld portion one side top installs the switch, and intake duct and exhaust duct have been seted up to handheld portion inside, and intake duct internally mounted has the round pin post, and exhaust duct internally mounted has the toper acoustical panel.

Furthermore, the weight reduction groove is uniformly formed in the center of the periphery of the pneumatic tool main body, a rear end cover is arranged at one end of the pneumatic tool main body, and a heat dissipation hole is formed in one side of the rear end cover.

Furthermore, an anti-skid groove is uniformly formed in one side of the outer circumference of the pneumatic tool main body, and an output shaft is installed at one end of the pneumatic tool main body.

Further, the centre hole has been seted up at the inside center of round pin post, and the internal thread has been seted up to centre hole bottom, and the mounting groove has been seted up at round pin post top center, and the spring is installed to mounting groove inside bottom surface, and the stopper is installed at the spring top joint, and the stopper is installed at the inside top of intake duct.

Further, the non-woven fabrics piece is installed to the inside upper portion of exhaust passage, and non-woven fabrics piece bottom and the peripheral laminating of toper acoustical panel top, and the kicking block is installed to toper acoustical panel top center, and the top amortization hole has evenly been seted up at kicking block top, and the side amortization hole has been seted up to toper acoustical panel peripheral one side, and the side board is installed to toper acoustical panel one side, and the leakage hole has all been seted up to side board one side and bottom.

Furthermore, the exhaust hood is installed at the bottom of the conical silencing plate, the inserting groove is formed in one side of the top of the exhaust hood, the inserting groove is fixedly inserted with the bottom of the conical silencing plate, the exhaust holes are uniformly formed in the bottom of the inserting groove, and the mounting holes are formed in the other side of the top of the exhaust hood.

(III) beneficial effects

The silencer for the pneumatic tool has the advantages that: according to the utility model, the conical silencing plate, the top block and the side plate are spliced and assembled to form the silencing structure, and air flow enters the silencing structure from the top silencing hole, so that the flow speed of the air flow is reduced, the air flow is discharged from the side silencing hole, the silencing of equipment is facilitated, the noise of the equipment in use is reduced, and meanwhile, the parts in the silencing structure are formed by injection molding, so that the production cost is low, the manufacturing process difficulty is low, and the silencing structure is suitable for large-scale popularization.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front elevational view of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of area A of FIG. 1 in accordance with the present utility model;

FIG. 3 is an assembled perspective view of the cone-shaped muffler plate and exhaust hood of the present utility model;

FIG. 4 is an exploded view of the cone-shaped muffler plate and exhaust hood of the present utility model;

in the figure: 1. a pneumatic tool body; 2. an anti-skid groove; 3. an output shaft; 4. a switch; 5. a hand-held part; 6. a heat radiation hole; 7. a rear end cover; 8. a weight reduction groove; 9. a central bore; 10. a mounting groove; 11. a spring; 12. a limiting block; 13. an air inlet channel; 14. an exhaust passage; 15. a nonwoven fabric block; 16. a conical sound attenuation plate; 17. an exhaust hood; 18. an internal thread; 19. a pin; 20. a mounting hole; 21. a side plate; 22. a side silencing hole; 23. a top sound deadening hole; 24. a top block; 25. a plug-in groove; 26. and an exhaust hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: a silencing device for a pneumatic tool comprises a pneumatic tool main body 1, wherein a weight reducing groove 8 is uniformly formed in the center of the periphery of the pneumatic tool main body 1, a rear end cover 7 is arranged at one end of the pneumatic tool main body 1, a heat dissipation hole 6 is formed in one side of the rear end cover 7 and is beneficial to heat dissipation through the heat dissipation hole 6, an anti-slip groove 2 is uniformly formed in one side of the outer circumference of the pneumatic tool main body 1, an output shaft 3 is arranged at one end of the pneumatic tool main body 1, a hand-held part 5 is arranged at the bottom of the pneumatic tool main body 1, a switch 4 is arranged at the top of one side of the hand-held part 5, an air inlet 13 and an air outlet 14 are formed in the hand-held part 5, a pin 19 is arranged in the air inlet 13, a central hole 9 is formed in the center of the pin 19, an internal thread 18 is formed in the bottom of the central hole 9, a mounting groove 10 is formed in the center of the top of the pin 19, a spring 11 is mounted on the bottom of the mounting groove 10, the top of the spring 11 is clamped and provided with a limiting block 12, the limiting block 12 is arranged at the top of the inside of the air inlet 13, the inside of the air outlet 14 is provided with a conical silencing plate 16, the middle upper part of the inside of the air outlet 14 is provided with a non-woven fabric block 15, the bottom of the non-woven fabric block 15 is attached to the periphery of the top of the conical silencing plate 16, the center of the top of the conical silencing plate 16 is provided with a top silencing hole 23, one side of the periphery of the conical silencing plate 16 is provided with a side silencing hole 22, one side of the conical silencing plate 16 is provided with a side plate 21, one side and the bottom of the side plate 21 are provided with air leakage holes, the bottom of the conical silencing plate 16 is provided with an exhaust hood 17, one side of the top of the exhaust hood 17 is provided with a plugging slot 25, the plugging slot 25 is fixedly plugged with the bottom of the conical silencing plate 16, the bottom of the plugging slot 25 is evenly provided with an exhaust hole 26, the other side of the top of the exhaust hood 17 is provided with a mounting hole 20, which facilitates noise reduction by the conical muffler plate 16.

Working principle: in the use process of the utility model, firstly, the joint of the air pipe is installed in the internal thread 18 of the pin 19, then when the switch 4 is pressed, the air pump is turned on, air is introduced into the pin 19 from the air pipe, then the air enters the center hole 9 and then enters the air inlet 13, then enters the inside of the pneumatic tool main body 1 through the air inlet 13, the rotation of the output shaft 3 at one side of the pneumatic tool main body 1 is realized, the pneumatic driving is realized, meanwhile, the air after the driving enters the air outlet 14 for backflow, the backflow air is slowly decelerated through the non-woven fabric block 15, then the air enters the conical silencing plate 16 from the top silencing hole 23 at the top of the top block 24, the conical silencing plate 16, the side plates 21 and the top block 24 form a conical silencing structure, the conical structure with the upper part being small and the lower part being big, the flow rate of gas is further slowed down, then the gas is discharged from side amortization hole 22 and amortizes, simultaneously gas enters into jack groove 25 from the gas leakage hole of side board 21 bottom, then follow exhaust hole 26 and discharge, accomplish the exhaust process, toper amortization board 16, side board 21 and kicking block 24 are by injection molding, low in production cost, the manufacturing process degree of difficulty is little, be fit for extensive popularization, mounting groove 10 is used for installing spring 11, spring 11 is used for keeping the tensioning of round pin 19, stopper 12 is used for the spacing of spring 11, weight-reducing groove 8 is used for the subtracting of pneumatic tool main part 1, anti-skidding groove 2 is used for antiskid, output shaft 3 is used for driving the dismantlement work piece that is to be installed, heat dissipation hole 6 is used for dispelling the heat, rear end cover 7 is used for the airtight of pneumatic tool main part 1 rear end, mounting hole 20 is used for the spacing installation of round pin 19.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a silencing device for pneumatic tool, includes pneumatic tool main part (1), its characterized in that: the pneumatic tool is characterized in that the bottom of the pneumatic tool main body (1) is provided with a handheld part (5), the top of one side of the handheld part (5) is provided with a switch (4), an air inlet channel (13) and an air outlet channel (14) are formed in the handheld part (5), a pin (19) is arranged in the air inlet channel (13), and a conical silencing plate (16) is arranged in the air outlet channel (14).

2. The muffler device for a pneumatic tool as claimed in claim 1, wherein: the pneumatic tool is characterized in that a weight reduction groove (8) is uniformly formed in the center of the periphery of the pneumatic tool main body (1), a rear end cover (7) is arranged at one end of the pneumatic tool main body (1), and a heat dissipation hole (6) is formed in one side of the rear end cover (7).

3. A muffler device for a pneumatic tool as defined in claim 2, wherein: the anti-skid groove (2) is uniformly formed in one side of the outer circumference of the pneumatic tool main body (1), and an output shaft (3) is arranged at one end of the pneumatic tool main body (1).

4. The muffler device for a pneumatic tool as claimed in claim 1, wherein: the center hole (9) has been seted up at round pin post (19) inside center, and internal thread (18) has been seted up to centre hole (9) bottom, and mounting groove (10) has been seted up at round pin post (19) top center, and spring (11) are installed to mounting groove (10) inside bottom surface, and stopper (12) are installed in stopper (12) top joint, and stopper (12) are installed at the inside top of intake duct (13).

5. The muffler device for a pneumatic tool as claimed in claim 1, wherein: the non-woven fabrics piece (15) is installed on inside upper portion of exhaust passage (14), and non-woven fabrics piece (15) bottom and toper acoustical panel (16) top peripheral laminating, and kicking block (24) are installed at toper acoustical panel (16) top center, and top amortization hole (23) have evenly been seted up at kicking block (24) top, and side amortization hole (22) have been seted up on toper acoustical panel (16) peripheral one side, and toper acoustical panel (16) installs side board (21) on one side, and leakage holes have all been seted up with the bottom on one side of side board (21).

6. The muffler device for a pneumatic tool as claimed in claim 5, wherein: the exhaust hood (17) is installed at the bottom of the conical silencer plate (16), the inserting groove (25) is formed in one side of the top of the exhaust hood (17), the inserting groove (25) is fixedly inserted into the bottom of the conical silencer plate (16), the exhaust holes (26) are uniformly formed in the bottom of the inserting groove (25), and the mounting holes (20) are formed in the other side of the top of the exhaust hood (17).