Silencer for pneumatic spraying machine motor

Abstract

The utility model discloses a silencer for a pneumatic spraying machine motor. The silencer comprises a silencer upper end cover, a silencer lower end cover and a silencing cylinder assembly, wherein the silencer upper end cover and the silencer lower end cover are installed at the end of the pneumatic spraying machine motor in a matched mode, and the silencing cylinder assembly is installed between the upper end cover and the lower end cover. The silencer upper end cover is connected and provided with an inner silencing cylinder, and the inner silencing cylinder is provided with inner silencing holes for high-pressure gas to flow through; according to the silencer of the technical scheme, the inner silencing barrel is fixedly connected and installed through the upper end cover, primary silencing is carried out on high-pressure gas entering the silencer, secondary silencing is carried out through the silencing barrel assembly coaxially arranged with the inner silencing barrel, noise pollution is greatly reduced after two times of silencing, and the silencing effect is good. And meanwhile, the inner silencing barrel is arranged, so that crushed ice in high-pressure gas is effectively prevented from being directly sprayed out of the silencer, and ice slag is prevented from splashing.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a muffler used for a pneumatic spraying machine motor. Background Art

[0002] As an indispensable power source for spraying equipment, pneumatic sprayer motors are widely used in spraying production.

[0003] The pneumatic sprayer motor uses compressed air as its power source. During the operation of the motor, the compressed air is instantly discharged into the atmosphere, causing air vibration and generating relatively loud noise. When the existing muffler is installed on the pneumatic sprayer motor, firstly, the muffler effect is relatively poor and the noise is too loud; secondly, the pneumatic sprayer motor will generate ice particles and ice debris when in use. The use of traditional mufflers will cause ice debris to splash, affecting the surrounding environment.

[0004] Therefore, in order to solve the above problems, a muffler for a pneumatic sprayer motor is needed to solve the above problems. Utility Model Content

[0005] In view of this, the silencer of the present technical solution is fixedly connected and installed with an inner silencer through the upper end cover, thereby forming a primary silencer for the high-pressure gas entering the silencer, and a secondary silencer is formed by a silencer assembly coaxially arranged with the inner silencer. After two silencers, the noise pollution is greatly reduced. At the same time, the setting of the inner silencer effectively prevents the crushed ice in the high-pressure gas from directly spraying out of the silencer, thereby avoiding the splashing of ice chips.

[0006] A silencer for a pneumatic sprayer motor comprises an upper end cover and a lower end cover of the silencer which are cooperatively mounted on the ends of the pneumatic sprayer motor, and a silencer tube assembly which is mounted between the upper end cover and the lower end cover; the upper end cover of the silencer is connected to an inner silencer tube which is provided with an inner silencer hole for the circulation of high-pressure gas.

[0007] Furthermore, an air inlet is provided in the middle of the upper end cover of the muffler, and the middle of the upper end cover of the muffler protrudes downward to form an inner positioning ring for installing the inner muffler, and the inner muffler is fixedly installed on the inner positioning ring and is used for introducing high-pressure gas.

[0008] Furthermore, the inner silencer holes are evenly distributed in the circumferential direction of the inner silencer tube, and a drainage hole is opened at the small end of the inner silencer tube.

[0009] Furthermore, the silencer assembly includes a silencer shell installed between the upper end cover and the lower end cover of the silencer, a silencer inner net and silencer cotton; the silencer cotton is arranged between the silencer shell and the silencer inner net.

[0010] Furthermore, the upper end cover of the muffler protrudes downward to form an upper end cover outer ring for limiting the installation of the muffler shell, and the muffler shell, muffler cotton and muffler inner net are arranged in sequence inward along the radial direction of the inner muffler tube.

[0011] Furthermore, a locking rod assembly for locking the silencer assembly is provided between the upper end cover and the lower end cover of the silencer, and the locking rod assembly includes a locking rod passing through the upper end cover and the lower end cover of the silencer and a locking member used in conjunction with the locking rod.

[0012] Furthermore, the lower end cover is provided with an exhaust port for the high-pressure gas to flow out.

[0013] The beneficial effects of the utility model are as follows: the silencer of the technical solution is fixedly connected and installed with the inner silencer through the upper end cover, thereby forming a primary silencer for the high-pressure gas entering the silencer, and a secondary silencer is formed by the silencer assembly coaxially arranged with the inner silencer. After the two silencers, the noise pollution is greatly reduced. At the same time, the arrangement of the inner silencer effectively prevents the crushed ice in the high-pressure gas from being directly sprayed out of the silencer, and avoids the splashing of ice chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the overall installation of the utility model;

[0016] Figure 2 It is a schematic diagram of the silencer of the utility model (the arrow indicates the flow direction of the high-pressure gas in the silencer 2). DETAILED DESCRIPTION

[0017] Figure 1 This is a schematic diagram of the overall installation of the utility model; Figure 2 It is a schematic diagram of the silencer of the utility model; as shown in the figure, a silencer for a pneumatic sprayer motor includes an upper end cover of the silencer mounted on the end of the pneumatic sprayer motor 1, a lower end cover 9 and a silencer tube assembly mounted between the upper end cover and the lower end cover; the upper end cover 3 of the silencer is connected to an inner silencer tube 4, and the inner silencer tube 4 is provided with an inner silencer hole 41 for the circulation of high-pressure gas; the silencer 2 of the present technical solution is fixedly connected and installed with the inner silencer tube through the upper end cover, so that the high-pressure gas entering the silencer is silenced once, and the silencer tube assembly coaxially arranged with the inner silencer tube forms a secondary silencer, and the noise pollution is greatly reduced after the two silencers, and at the same time, the arrangement of the inner silencer tube effectively prevents the crushed ice in the high-pressure gas from being directly sprayed out of the silencer, and avoids the splashing of ice chips.

[0018] In this embodiment, an air inlet is provided in the middle of the upper end cover of the muffler, and the middle of the upper end cover of the muffler is downward (the upper and lower directions are Figure 2The upper cover is provided with an air inlet in the middle, and the air inlet end is fixedly installed in cooperation with the pneumatic sprayer motor. The air inlet position of the upper cover is convex downward to form an inner positioning ring 32, and a threaded structure is provided in the inner positioning ring to facilitate fixed installation with the inner silencer 4.

[0019] In this embodiment, the inner silencer holes 41 are evenly distributed in the circumferential direction of the inner silencer, and the inner silencer small end is provided with a drainage hole 42. A plurality of inner silencer holes 41 are provided and evenly distributed in the circumferential direction of the inner silencer, so as to facilitate the high-pressure gas to be led out to the outside after the silencer treatment, and the drainage hole 42 is arranged at the bottom of the inner silencer 4, so that the ice slag inside is sprayed out and melted and then led out from the bottom, and the inner silencer 4 also plays the effect of preventing the ice slag from being directly sprayed out.

[0020] In this embodiment, the muffler assembly includes a muffler outer shell 5, a muffler inner net 7 and muffler cotton 6 installed between the upper end cover 3 and the lower end cover 9 of the muffler; the muffler cotton 6 is arranged between the muffler outer shell 5 and the muffler inner net 7. The muffler inner net 7 is a stainless steel welded net with a smaller aperture, and the muffler cotton 6 can be a composite sound insulation cotton. After a certain period of use, the muffler assembly can be disassembled and the muffler cotton can be reinstalled.

[0021] In this embodiment, the upper end cover 3 of the muffler protrudes downward to form an upper end cover outer ring for limiting the installation of the muffler shell, and the muffler shell, the muffler cotton and the muffler inner net are arranged inwardly in the radial direction of the inner muffler. The upper end cover 3 of the muffler cooperates with the lower end cover to fix and limit the muffler assembly, so that a cavity structure is formed inside it, and the muffler cotton is cooperated to facilitate secondary muffler treatment.

[0022] In this embodiment, a locking rod assembly for locking the silencer assembly is provided between the upper end cover 3 and the lower end cover 9 of the muffler, and the locking rod assembly includes a locking rod 8 penetrating the upper end cover and the lower end cover of the muffler and a locking member used in conjunction with the locking rod. The locking rod 8 (the upper end of the locking rod is installed in conjunction with the upper cover mounting hole 31) cooperates with the locking member (a locking nut can be used) to lock the various components. The locking rod assembly is provided with multiple groups, which are evenly distributed on the surface of the end cover to ensure stable and reliable locking.

[0023] In this embodiment, an exhaust port for high-pressure gas to flow out is provided on the lower end cover 9. The exhaust port is provided on the lower end cover to facilitate the discharge of gas and internal liquid.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A muffler for a pneumatic sprayer motor, characterized in that: It includes an upper end cover and a lower end cover of a silencer which are mounted on the end of a pneumatic sprayer motor, and a silencer tube assembly which is mounted between the upper end cover and the lower end cover; the upper end cover of the silencer is connected to an inner silencer tube which is provided with an inner silencer hole for the circulation of high-pressure gas.

2. The muffler for a pneumatic sprayer motor according to claim 1, characterized in that: An air inlet is provided in the middle of the upper end cover of the muffler. The middle of the upper end cover of the muffler protrudes downward to form an inner positioning ring for installing the inner muffler. The inner muffler is fixedly installed on the inner positioning ring and is used for introducing high-pressure gas.

3. The muffler for a pneumatic sprayer motor according to claim 2, characterized in that: The inner silencer holes are evenly distributed in the circumferential direction of the inner silencer tube, and a drainage hole is opened at the small end of the inner silencer tube.

4. The muffler for a pneumatic sprayer motor according to claim 1, characterized in that: The silencer assembly comprises a silencer shell installed between the upper end cover and the lower end cover of the silencer, a silencer inner net and silencer cotton; the silencer cotton is arranged between the silencer shell and the silencer inner net.

5. The muffler for a pneumatic sprayer motor according to claim 4, characterized in that: The upper end cover of the muffler protrudes downward to form an upper end cover outer ring for limiting the installation of the muffler shell. The muffler shell, the muffler cotton and the muffler inner net are arranged in sequence inwardly along the radial direction of the inner muffler tube.

6. The muffler for a pneumatic sprayer motor according to claim 5, characterized in that: A locking rod assembly for locking the silencer assembly is arranged between the upper end cover and the lower end cover of the silencer. The locking rod assembly includes a locking rod passing through the upper end cover and the lower end cover of the silencer and a locking member used in conjunction with the locking rod.

7. The muffler for a pneumatic sprayer motor according to claim 1, characterized in that: The lower end cover is provided with an exhaust port for high-pressure gas to flow out.

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