Air compressor muffler

Abstract

The utility model discloses an air compressor silencer relates to air compressor technical field, including the silencer, the inner wall fixedly connected with built -in screw pipe of silencer, the outer wall screw connection has internal thread butt joint cylinder to built -in screw pipe, the inner wall fixedly connected with guide slide rail of built -in screw pipe, the inner wall movable plug connection has the sound -absorbing cotton of built -in screw pipe, one side of sound -absorbing cotton is provided with limit component, and the limit component is used for the location fixed of sound -absorbing cotton. The utility model discloses through the screw connection of internal thread butt joint cylinder and built -in screw pipe, the sliding fit of movable plug rod and guide slide rail and the detachable design of draw plate, realizes the quick disassembly and replacement of sound -absorbing cotton, has solved the traditional silencer sound -absorbing material fixed installation, maintenance difficult problem, has reduced the maintenance cost of later period.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, specifically to an air compressor silencer. Background Technology

[0002] During the operation of an air compressor, gas compression and emission generate loud noise, and the silencer is a key component for noise reduction. However, existing air compressor silencers have the following problems:

[0003] The sound-absorbing material is difficult to replace: The sound-absorbing material of traditional silencers is mostly installed in the silencer tube by gluing or welding. After long-term use, the sound-absorbing material is prone to aging and failure. However, disassembly and replacement require damaging the silencer tube structure, resulting in high maintenance costs and cumbersome operation.

[0004] The sound-absorbing material is not securely fixed: Although some silencers use a simple snap-fit ​​structure to fix the sound-absorbing material, the sound-absorbing material is prone to displacement and deformation under the impact of high-pressure airflow, resulting in a significant decrease in the sound-absorbing effect and even generating secondary noise.

[0005] Poor adaptability: The sound-absorbing materials of existing silencers have fixed specifications and cannot adjust their sound absorption capacity according to the operating conditions of the air compressor (such as changes in air pressure and flow rate), making it difficult to meet the noise reduction needs of different scenarios. Utility Model Content

[0006] The purpose of this utility model is to provide an air compressor silencer to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] An air compressor silencer includes a silencer cylinder, an internal threaded tube fixedly connected to the inner wall of the silencer cylinder, an internal threaded mating cylinder threadedly connected to the outer wall of the internal threaded tube, and a guide slide rail fixedly connected to the inner wall of the internal threaded tube.

[0009] The inner wall of the built-in threaded tube is movably inserted with sound-absorbing cotton. A limiting component is provided on one side of the sound-absorbing cotton. The limiting component is used to limit and fix the sound-absorbing cotton. The limiting component includes a cross-shaped closing rod and a threaded rod.

[0010] A further improvement of this utility model is that: a vent hole is provided at one end of the internally threaded connecting cylinder, and an annular mounting plate is fixedly connected to the center of one side of the vent hole, and the inner wall of the annular mounting plate is threadedly connected to the outer wall of the threaded rod.

[0011] A further improvement of this utility model is that: one end of the threaded rod is threaded through one side of the cross-shaped sealing rod and fixedly connected to a limiting push plate, and the side of the limiting push plate away from the threaded rod abuts against the side of the sound-absorbing cotton.

[0012] A further improvement of this utility model is that: one end of the cross-shaped sealing rod is fixedly connected to a movable insert rod, the top of the movable insert rod is movably inserted into the inner wall of the guide rail through a T-shaped slider, and the other end of the movable insert rod is detachably fixedly connected to a pull plate by bolts, with one side of the pull plate abutting against one side of the sound-absorbing cotton.

[0013] A further improvement of this utility model is that: the outer wall of the sound-absorbing cotton is provided with an adapter groove, and the inner wall of the adapter groove is movably connected to the outer wall of the guide rail.

[0014] A further improvement of this utility model is that a rotating ring is fixedly connected to the outer wall of the end of the internally threaded connecting cylinder away from the muffler.

[0015] A further improvement of this utility model is that an air outlet pipe is fixedly connected to the center of one end of the silencer.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides an air compressor silencer, which achieves quick disassembly and replacement of sound-absorbing cotton through the threaded connection between the internal threaded connecting cylinder and the built-in threaded pipe, the sliding cooperation between the movable plug rod and the guide slide rail, and the detachable design of the pull plate. This solves the problem of difficult fixed installation and maintenance of sound-absorbing materials in traditional silencers and reduces the later maintenance cost.

[0018] 2. This utility model provides an air compressor silencer. The limiting component forms a bidirectional fixation of the sound-absorbing cotton through the limiting push plate and the pull plate. Combined with the positioning function of the guide slide rail, it effectively prevents the sound-absorbing cotton from shifting or loosening under the impact of airflow, ensuring the long-term stability of the silencing effect.

[0019] 3. This utility model provides an air compressor silencer that supports adjusting the thickness or quantity of sound-absorbing cotton according to actual noise reduction needs. It can flexibly adapt to air compressor working scenarios with different air pressures and flow rates, thus improving the applicability of the silencer.

[0020] 4. This utility model provides an air compressor silencer. The combination of the vent hole and the cross-shaped sealing rod ensures smooth airflow while maximizing the sound absorption area of ​​the sound-absorbing cotton. The rotating ring makes the operation of the internal threaded connecting cylinder easier. The overall structure is compact and highly functional. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the sound-absorbing cotton structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the movable insert structure of this utility model.

[0025] In the diagram: 1. Silencer; 2. Vent pipe; 3. Internally threaded connecting cylinder; 4. Rotating ring; 5. Vent hole; 6. Annular mounting plate; 7. Internally threaded pipe; 8. Guide slide rail; 9. Sound-absorbing cotton; 10. Movable insert rod; 11. Cross-shaped sealing rod; 12. Threaded rod; 13. Limiting push plate; 14. Adaptor groove; 16. Pull plate. Detailed Implementation

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described in detail below with reference to embodiments:

[0028] Example 1

[0029] like Figures 1-4 As shown, this utility model provides an air compressor silencer, including a silencer cylinder 1, an internal threaded tube 7 fixedly connected to the inner wall of the silencer cylinder 1, an internal threaded connecting cylinder 3 threadedly connected to the outer wall of the internal threaded tube 7, and a guide rail 8 fixedly connected to the inner wall of the internal threaded tube 7.

[0030] Sound-absorbing cotton 9 is movably inserted into the inner wall of the built-in threaded tube 7. A limiting component is provided on one side of the sound-absorbing cotton 9. The limiting component is used to limit and fix the sound-absorbing cotton 9. The limiting component includes a cross-shaped closing rod 11 and a threaded rod 12.

[0031] One end of the internally threaded connecting cylinder 3 is provided with a vent hole 5, and an annular mounting plate 6 is fixedly connected to the center of one side of the vent hole 5. The inner wall of the annular mounting plate 6 is threadedly connected to the outer wall of the threaded rod 12.

[0032] In this embodiment, the sound-absorbing cotton 9 can be quickly disassembled and replaced by the threaded connection between the internal threaded connecting cylinder 3 and the built-in threaded tube 7, the sliding fit between the movable insert rod 10 and the guide slide rail 8, and the detachable design of the pull plate 16. This solves the problem of difficult fixed installation and maintenance of traditional silencer sound-absorbing materials and reduces the later maintenance cost.

[0033] Example 2

[0034] like Figures 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, one end of the threaded rod 12 is threaded through one side of the cross-shaped sealing rod 11 and fixedly connected to a limiting push plate 13, and the side of the limiting push plate 13 away from the threaded rod 12 abuts against one side of the sound-absorbing cotton 9.

[0035] One end of the cross-shaped sealing rod 11 is fixedly connected to a movable insert rod 10. The top of the movable insert rod 10 is movably inserted into the inner wall of the guide rail 8 via a T-shaped slider. The other end of the movable insert rod 10 is detachably fixedly connected to a pull plate 16 via bolts. One side of the pull plate 16 abuts against one side of the sound-absorbing cotton 9.

[0036] The outer wall of the sound-absorbing cotton 9 is provided with an adapter groove 14, and the inner wall of the adapter groove 14 is movably connected to the outer wall of the guide rail 8.

[0037] A rotating ring 4 is fixedly connected to the outer wall of the end of the internally threaded butt sleeve 3 that is away from the muffler 1.

[0038] An air outlet pipe 2 is fixedly connected to the center of one end of the silencer 1.

[0039] In this embodiment, the limiting component forms a bidirectional fixation of the sound-absorbing cotton 9 through the limiting push plate 13 and the pull plate 16. Combined with the positioning function of the guide slide rail 8, it effectively prevents the sound-absorbing cotton 9 from shifting or loosening under the impact of airflow, ensuring the long-term stability of the sound absorption effect.

[0040] Example 3

[0041] like Figures 1-4 As shown, based on Example 1, this utility model provides a technical solution: Preferably, the sound-absorbing cotton 9 is made of high-temperature resistant and aging-resistant polyester fiber sound-absorbing cotton or centrifugal glass wool, with a density of 32-48 kg / m³. 3 It ensures long-term stable operation at the air compressor exhaust temperature (usually 50-120℃) and has a good sound absorption coefficient (sound absorption coefficient ≥0.8 in the frequency range of 250~2000Hz).

[0042] The guide rail 8 is fixed to the inner wall of the built-in threaded tube 7 by welding. The weld height is ≥3mm, and the rail is made of Q235 steel to ensure that it does not deform when bearing the weight of the sound-absorbing cotton 9 and the limiting components.

[0043] The working principle of this air compressor silencer will be explained in detail below.

[0044] like Figures 1-4As shown, the working principle of the air compressor silencer is as follows: it is connected to the air compressor through the air outlet pipe 2, and air is drawn in through the air vent 5 and then enters the air compressor through the air outlet pipe 2.

[0045] The silencer 1 serves as the base for overall installation. Its inner wall is fixedly connected to an internal threaded tube 7. The outer wall of the internal threaded tube 7 is threadedly connected to an internal threaded mating cylinder 3. The internal threaded mating cylinder 3 can be easily rotated via a rotating ring 4 to achieve relative movement between it and the internal threaded tube 7. A guide rail 8 fixed to the inner wall of the internal threaded tube 7 provides guidance for the installation of the sound-absorbing cotton 9. An adapter groove 14 on the outer wall of the sound-absorbing cotton 9 is movably connected to the guide rail 8, ensuring that the sound-absorbing cotton 9 is installed within the internal threaded tube 7 along a fixed trajectory.

[0046] The limiting assembly is used to fix the sound-absorbing cotton 9, specifically including a cross-shaped sealing rod 11 and a threaded rod 12: the vent 5 opened at one end of the internally threaded connecting cylinder 3 ensures airflow, and the annular mounting plate 6 at the center of one side of the vent 5 is threadedly connected to the outer wall of the threaded rod 12; one end of the threaded rod 12 is threaded through the cross-shaped sealing rod 11 and fixedly connected to the limiting push plate 13, which abuts against one side of the sound-absorbing cotton 9; the movable insert rod 10 fixed at one end of the cross-shaped sealing rod 11 is movably inserted into the guide rail 8 through a T-shaped slider, and the other end of the movable insert rod 10 is detachably connected to the pull plate 16 through bolts, which abuts against the other side of the sound-absorbing cotton 9, forming a bidirectional limiting of the sound-absorbing cotton 9.

[0047] When it is necessary to disassemble or replace the sound-absorbing cotton 9, rotate the internally threaded connecting cylinder 3 to move it outward along the internally threaded tube 7, causing the threaded rod 12 to move outward simultaneously. The threaded rod 12, through the cross-shaped closing rod 11, drives the movable insert rod 10 and the pull plate 16 to move outward along the guide rail 8. The pull plate 16 then moves the sound-absorbing cotton 9 out of the internally threaded tube 7. The sound-absorbing cotton 9 can be removed by removing the bolts on the pull plate 16. After replacing the sound-absorbing cotton 9, rotate the internally threaded connecting cylinder 3 in the opposite direction to reset it, and then rotate the threaded rod 12 to push the limiting push plate 13 to press against the sound-absorbing cotton 9, thus completing the fixation. At the same time, different thicknesses or quantities of sound-absorbing cotton 9 can be added according to the sound absorption requirements to adjust the sound absorption effect.

[0048] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An air compressor silencer, comprising a silencer cylinder (1), characterized in that: The inner wall of the muffler (1) is fixedly connected to a built-in threaded tube (7), the outer wall of the built-in threaded tube (7) is threadedly connected to an internal threaded connecting tube (3), and the inner wall of the built-in threaded tube (7) is fixedly connected to a guide slide rail (8). The inner wall of the built-in threaded tube (7) is movably inserted with sound-absorbing cotton (9). A limiting component is provided on one side of the sound-absorbing cotton (9). The limiting component is used to limit and fix the sound-absorbing cotton (9). The limiting component includes a cross-shaped closing rod (11) and a threaded rod (12).

2. The air compressor silencer according to claim 1, characterized in that: One end of the internal threaded connecting cylinder (3) is provided with a vent hole (5), and an annular mounting plate (6) is fixedly connected to the center of one side of the vent hole (5). The inner wall of the annular mounting plate (6) is threadedly connected to the outer wall of the threaded rod (12).

3. The air compressor silencer according to claim 1, characterized in that: One end of the threaded rod (12) is threaded through one side of the cross-shaped closing rod (11) and fixedly connected to a limiting push plate (13). The side of the limiting push plate (13) away from the threaded rod (12) abuts against the side of the sound-absorbing cotton (9).

4. The air compressor silencer according to claim 1, characterized in that: One end of the cross-shaped sealing rod (11) is fixedly connected to a movable insert rod (10). The top of the movable insert rod (10) is movably inserted into the inner wall of the guide rail (8) via a T-shaped slider. The other end of the movable insert rod (10) is detachably fixedly connected to a pull plate (16) via bolts. One side of the pull plate (16) abuts against one side of the sound-absorbing cotton (9).

5. An air compressor silencer according to claim 1, characterized in that: The outer wall of the sound-absorbing cotton (9) is provided with an adapter groove (14), and the inner wall of the adapter groove (14) is movably connected to the outer wall of the guide rail (8).

6. The air compressor silencer according to claim 1, characterized in that: A rotating ring (4) is fixedly connected to the outer wall of the end of the internally threaded butt sleeve (3) away from the muffler (1).

7. The air compressor silencer according to claim 1, characterized in that: An air outlet pipe (2) is fixedly connected to the center of one end of the silencer (1).

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