A silencer for the air outlet of a compression shell

Abstract

The present invention relates to the technical field of superchargers, and in particular to a silencer device for a compressor shell air outlet; comprising an air outlet, which is installed on the surface of the compressor shell body of the supercharger; a silencer pipe, which is threadedly connected to the air outlet end of the air outlet, and the interior of the air outlet is provided with a thread adapted to the silencer pipe, and the connection between the air outlet and the silencer pipe is sealed by a rubber sealing ring; at least one group of partitions, which are installed inside the silencer pipe, and the partitions divide the silencer pipe into a plurality of cavities, and the shape of the partitions is annular; when the gas is discharged through the air outlet, the gas will first enter the interior of the silencer pipe, and under the action of the partitions and dispersion grooves of the silencer pipe, the gas will enter the interior of the silencer pipe dispersed into a plurality of cavities by the partitions, thereby dispersing the gas expansion to affect the flow of the gas, and the sound waves generated by the gas will be reflected and interfered inside the silencer pipe, thereby reducing the generation of noise, and the use is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of superchargers, and in particular to a compressor shell air outlet silencer. Background Art

[0002] The supercharger air outlet is an important component of the supercharger system. It is responsible for delivering the air compressed by the supercharger to the engine's intake system. When the supercharger air outlet is used normally, it will generate noise.

[0003] The prior art also proposes an improved solution for supercharger silencer, such as a patent application with publication number CN102359409A that discloses a silencer for the compressor shell outlet. It has a simple structure, is easy to manufacture, can effectively reduce noise, avoids abnormal vibration of the supercharger, and helps the supercharger to work normally. It includes a cylindrical outer shell, an inner cylinder is installed inside the cylindrical outer shell, and the waist of the inner cylinder has two raised rings above and below, and the two raised rings separate the cavity formed by the inner cylinder and the cylindrical outer shell into two independent ring cavities. The upper part of the inner wall of the cylindrical outer shell is provided with an internal thread, and the lower part of the internal thread is provided with a chamfer; the bottom end of the inner cylinder is provided with a chamfer inside, and the outer side of the raised ring of the inner cylinder close to the top is provided with an external thread.

[0004] Although the above technical solution can reduce the generation of noise, there are still other problems in its specific implementation. When the supercharger is in use, if the oil seal ring is aged or poorly lubricated, some engine oil will leak into the air outlet. The relatively viscous engine oil will affect the normal noise reduction of the air outlet. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that engine oil appears inside the air outlet and affects its normal silencing.

[0006] In order to solve the above technical problems, the present invention provides a compressor shell air outlet silencer device, comprising: a supercharger compressor shell body; an air outlet, the air outlet is installed on the surface of the supercharger compressor shell body; a silencer pipe, the silencer pipe is threadedly connected to the air outlet end of the air outlet, and the air outlet is provided with a thread matching the silencer pipe, and the connection between the air outlet and the silencer pipe is sealed by a rubber sealing ring; at least one group of partitions, the partitions are installed inside the silencer pipe, the partitions divide the silencer pipe into a plurality of cavities, and the shape of the partitions is annular; at least one group of dispersion grooves, the dispersion grooves are opened on the outer peripheral surface of the partition; a cleaning mechanism, the cleaning mechanism is arranged inside the silencer pipe, and the cleaning mechanism is used to clean the engine oil existing on the outer peripheral surface of the partition;

[0007] The cleaning mechanism comprises: a cleaning seat, which is slidably arranged inside the muffler; a cleaning ring, which is rotatably arranged inside the cleaning seat, the diameter of the cleaning ring is larger than the diameter of the partition, and the inner wall of the cleaning ring contacts the outer peripheral surface of the partition at the middle position; an L-shaped electric push rod, which is installed on the inner wall of the muffler, and the telescopic end of the L-shaped electric push rod is connected to the side wall of the cleaning seat; a limiting unit, which is arranged on the outer peripheral surface of the cleaning ring, and is used to drive the cleaning ring to rotate; a recovery hole, which is opened at the edge of the inner wall of the muffler and passes through the muffler, and the recovery hole is connected to an external recovery pipe;

[0008] The limiting unit includes: a limiting ball, which is installed on the outer peripheral surface of the cleaning ring; a spiral groove, which is opened on the inner wall of the adjacent partition close to the middle partition, and the spiral groove does not contact the dispersion groove; the limiting ball is located inside the spiral groove; when working, when the cleaning ring moves on the outer peripheral surface of the partition, the cleaning ring will simultaneously drive the limiting ball to move, and under the limitation of the limiting ball by the spiral groove, and the cleaning ring is rotatably arranged on the surface of the cleaning seat, so when the cleaning ring moves horizontally, it will also rotate, so the cleaning ring can quickly process the engine oil on the surface of the partition, avoid excessive adhesion of the engine oil on the surface of the partition, resulting in problems with the normal silencing of the partition and the silencer, and is more convenient to use.

[0009] In one embodiment of the present invention, the silencer pipe includes: a porous sound-absorbing material, which is installed on the inner wall of the silencer pipe and leaves a gap with the partition; when working, the porous sound-absorbing material is arranged inside the silencer pipe, when the gas generates sound waves in the air outlet, and when the sound waves enter the porous sound-absorbing material, they will propagate in the pores and experience multiple reflections and scattering, which causes the sound wave energy to be gradually converted into heat energy and dissipated, further reducing the noise generated by the gas during transmission.

[0010] In one embodiment of the present invention, the dispersion groove is irregularly designed on the outer peripheral surface of the partition, and the partition is clamped with the inside of the silencer pipe.

[0011] In one embodiment of the present invention, the shape of the limiting ball is matched with the shape of the spiral groove, and the outer surface of the cleaning ring is sleeved with a cleaning sleeve; during operation, since the shape of the limiting ball is matched with the shape of the spiral groove, the cleaning ring can move inside the cleaning seat when moving under the mutual limitation of the spiral groove and the limiting ball, thereby facilitating the processing of the engine oil and ensuring the normal silencing effect of the muffler.

[0012] In one embodiment of the present invention, the cleaning seat includes: a limiting circular groove, which is opened inside the cleaning seat; a limiting circular ring, which is fixedly installed on the outer circumferential surface of the cleaning ring and rotatably arranged inside the limiting circular groove; the shape of the limiting circular ring is compatible with the shape of the limiting circular groove.

[0013] In one embodiment of the present invention, the L-shaped electric push rod includes: a telescopic frame, which is installed at the telescopic end of the L-shaped electric push rod; a sliding rod, which is slidably arranged inside the telescopic frame, and the end of the sliding rod is connected to the side wall of the cleaning seat; a slot, which is opened on the inner wall of the telescopic frame; a limiting column head, which is installed on the surface of the sliding rod, and the limiting column head is located inside the slot; contact one, which is installed on the surface of the sliding rod and away from the limiting column head; contact two, which is installed on the inner wall of the telescopic frame and corresponds to contact one.

[0014] In one embodiment of the present invention, the shape of the limit stud is an arc, the material of the limit stud is rubber, and the shape of the limit stud is adapted to the shape of the card slot; when working, the shape of the limit stud is set to an arc, and the material is rubber, which not only facilitates the normal movement of the sliding rod when the engine oil is less, but also facilitates the limit stud to be pushed out of the card slot when the engine oil is too much, thereby enabling the external controller to send out an alarm.

[0015] In one embodiment of the present invention, the muffler pipe further comprises: a through groove, the through groove is provided inside the muffler pipe, the shape of the through groove is adapted to the shape of the partition, and the partition is clamped inside the through groove.

[0016] The above technical solution of the present invention has the following advantages compared with the prior art:

[0017] The present invention describes a silencer device for the compressor shell air outlet. When the cleaning ring moves on the outer peripheral surface of the partition, the cleaning ring will simultaneously drive the limiting ball to move. Under the limitation of the limiting ball by the spiral groove, and the cleaning ring is rotatably arranged on the surface of the cleaning seat, it will also rotate when the cleaning ring moves horizontally. Therefore, the cleaning ring can quickly process the engine oil on the surface of the partition, avoiding excessive adhesion of the engine oil on the surface of the partition, resulting in the problem of normal silence of the partition and the silencer pipe, and is more convenient to use.

[0018] A silencer device for a compression shell air outlet described in the present invention, if too much oil leaks into the air outlet of the supercharger, and due to the excessive viscosity of the oil, when the telescopic end of the L-shaped electric push rod drives the telescopic frame to move, the cleaning ring is hindered by the oil with greater viscosity, and the sliding rod will gradually drive the limit column head away from the slot, and then the sliding rod drives contact point 1 and contact point 2 to contact. At this time, the external circuit is connected, and the external controller will sound an alarm, which will remind the staff to come and deal with the supercharger to avoid excessive oil leakage due to other problems, such as supercharger damage, intake system pressure exceeding expectations, turbocharger quality problems or blockage of the oil inlet and return pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the muffler pipe of the present invention;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the muffler pipe of the present invention;

[0023] Figure 4 It is a schematic diagram of the partition structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the muffler pipe of the present invention;

[0025] Figure 6 It is a schematic diagram of the cleaning ring structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the limiting circular groove structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the through-groove structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the spiral groove structure of the present invention;

[0029] Fig.10 It is a schematic diagram of the telescopic frame structure of the present invention.

[0030] Explanation of the reference numerals in the drawings in the specification: 1. Supercharger compression shell body; 101. Porous sound-absorbing material; 2. Air outlet; 3. Silencer; 4. Partition; 5. Dispersion groove; 6. Cleaning seat; 7. Cleaning ring; 8. L-shaped electric push rod; 9. Recovery hole; 10. Limiting ball; 11. Spiral groove; 12. Limiting circular groove; 13. Limiting circular ring; 15. Telescopic frame; 151. Card slot; 16. Sliding rod; 17. Limiting column head; 18. Contact one; 19. Contact two; 20. Through groove. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0032] Reference Figures 1 to 8 As shown, a compressor shell air outlet silencer device described in an embodiment of the present invention comprises: a supercharger compressor shell body 1; an air outlet 2, the air outlet 2 is installed on the surface of the supercharger compressor shell body 1; a silencer pipe 3, the silencer pipe 3 is threadedly connected to the air outlet end of the air outlet 2, and the inside of the air outlet 2 is provided with a thread adapted to the silencer pipe 3, and the connection between the air outlet 2 and the silencer pipe 3 is sealed by a rubber sealing ring; at least one group of baffles 4, the baffles 4 are installed inside the silencer pipe 3, the baffles 4 divide the silencer pipe 3 into a plurality of cavities, and the shape of the baffles 4 is annular; at least one group of dispersion grooves 5, the dispersion grooves 5 are opened on the outer peripheral surface of the baffle 4; a cleaning mechanism, the cleaning mechanism is arranged inside the silencer pipe 3, and the cleaning mechanism is used to clean the engine oil existing on the outer peripheral surface of the baffle 4;

[0033] The cleaning mechanism comprises: a cleaning seat 6, which is slidably arranged inside the muffler 3; a cleaning ring 7, which is rotatably arranged inside the cleaning seat 6, the diameter of the cleaning ring 7 is larger than the diameter of the partition 4, and the inner wall of the cleaning ring 7 contacts the outer peripheral surface of the partition 4 at the middle position; an L-shaped electric push rod 8, which is installed on the inner wall of the muffler 3, and the telescopic end of the L-shaped electric push rod 8 is connected to the side wall of the cleaning seat 6; a limiting unit, which is arranged on the outer peripheral surface of the cleaning ring 7, and the limiting unit is used to drive the cleaning ring 7 to rotate; a recovery hole 9, which is opened at the edge of the inner wall of the muffler 3 and passes through the muffler 3, and the recovery hole 9 is connected to an external recovery pipe;

[0034] The limiting unit includes: a limiting ball 10, which is installed on the outer peripheral surface of the cleaning ring 7; a spiral groove 11, which is opened on the inner wall of the adjacent partition 4 close to the middle partition 4, and the spiral groove 11 does not contact the dispersion groove 5; the limiting ball 10 is located inside the spiral groove 11;

[0035] The noise of the supercharger is generated when the gas is ejected at a high speed through the air outlet 2, which will generate a relatively strong shock wave and thus generate a huge sound; for this reason, the silencer device of the present invention is proposed. When the silencer pipe 3 is installed during operation, the thread of the silencer pipe 3 is screwed into one side of the air outlet 2, and the silencer pipe 3 can be installed at this time; when the supercharger is working normally and the gas is discharged through the air outlet 2, the gas will first enter the interior of the silencer pipe 3, and under the action of the partition 4 and the dispersion groove 5 of the silencer pipe 3, the gas will enter the silencer pipe 3 which is dispersed into multiple cavities by the partition 4, thereby dispersing the gas expansion to affect the flow of the gas, and the sound waves generated by the gas will be reflected and interfered in the silencer pipe 3, thereby reducing the generation of noise, and it is more convenient to use, and the engine oil in the silencer pipe 3 can be automatically processed by the cleaning mechanism to ensure its normal silencing function;

[0036] When the vehicle is running, if the oil seal ring ages and causes poor lubrication and other problems, it will cause the problem of oil leakage in the supercharger outlet 2, and the oil will leak into the surface of the middle partition 4 of the silencer 3 along the outlet 2, and the oil will affect the normal silence of the silencer 3; at this time, the external controller controls the telescopic end of the L-shaped electric push rod 8 to move, so that the telescopic end drives the cleaning seat 6 and the cleaning ring 7 to move along the outer peripheral surface of the middle partition 4, so the cleaning ring 7 will clean the oil on the surface of the middle partition 4, And gradually push it to the side close to the recovery hole 9; when the cleaning ring 7 moves on the outer peripheral surface of the partition 4, the cleaning ring 7 will simultaneously drive the limiting ball 10 to move. Under the limiting position of the limiting ball 10 by the spiral groove 11, and the cleaning ring 7 is rotatably set on the surface of the cleaning seat 6, it will also rotate when the cleaning ring 7 moves horizontally. Therefore, the cleaning ring 7 can quickly process the engine oil on the surface of the partition 4, avoiding excessive adhesion of the engine oil on the surface of the partition 4, resulting in the problem of normal silencing of the partition 4 and the silencer 3, and it is more convenient to use.

[0037] The silencer pipe 3 includes: a porous sound absorbing material 101, which is installed on the inner wall of the silencer pipe 3 and leaves a gap with the partition 4, and the dispersion groove 5 is irregularly designed on the outer peripheral surface of the partition 4, and the partition 4 is snap-fitted with the inside of the silencer pipe 3; when working, the porous sound absorbing material 101 is arranged inside the silencer pipe 3, when the gas generates sound waves in the air outlet 2, and when the sound waves enter the porous sound absorbing material 101, they will propagate in the pores and experience multiple reflections and scattering, which causes the sound wave energy to be gradually converted into heat energy and dissipated, further reducing the noise generated by the gas during transmission.

[0038] The shape of the limiting ball 10 is matched with the shape of the spiral groove 11, and the outer surface of the cleaning ring 7 is sleeved with a cleaning sleeve; during operation, since the shape of the limiting ball 10 is matched with the shape of the spiral groove 11, the cleaning ring 7 can move inside the cleaning seat 6 when moving under the mutual limitation of the spiral groove 11 and the limiting ball 10, so it is convenient to handle the engine oil and ensure the normal silencing effect of the silencer pipe 3.

[0039] Reference Figures 3 to 10 As shown, the cleaning seat 6 includes: a limiting circular groove 12, which is opened inside the cleaning seat 6; a limiting circular ring 13, which is fixedly installed on the outer circumferential surface of the cleaning ring 7, and the limiting circular ring 13 is rotatably arranged inside the limiting circular groove 12; the shape of the limiting circular ring 13 is adapted to the shape of the limiting circular groove 12; during operation, when the cleaning ring 7 is rotated due to the mutual limitation of the spiral groove 11 and the limiting ball 10, the cleaning ring 7 will drive the limiting circular ring 13 to rotate inside the limiting circular groove 12, and under the mutual limitation of the limiting circular ring 13 and the limiting circular groove 12, the cleaning ring 7 can stably rotate in the limiting circular groove 12, and can also stably process the engine oil.

[0040] The L-shaped electric push rod 8 includes: a telescopic frame 15, which is installed at the telescopic end of the L-shaped electric push rod 8; a slide bar 16, which is slidably arranged inside the telescopic frame 15, and the end of the slide bar 16 is connected to the side wall of the cleaning seat 6; a card slot 151, which is opened on the inner wall of the telescopic frame 15; a limit column head 17, which is installed on the surface of the slide bar 16, and the limit column head 17 is located inside the card slot 151; a contact 18, which is installed on the surface of the slide bar 16 and away from the limit column head 17; a contact 2 19, which is installed on the inner wall of the telescopic frame 15 and corresponds to the contact 1 18;

[0041] During operation, when the L-shaped electric push rod 8 drives the cleaning ring 7 to process the engine oil normally, the limit column head 17 is located inside the card slot 151, and the contact 1 18 and the contact 2 19 are not in contact; if the engine oil leaked from the supercharger to the inside of the air outlet 2 is too much, and due to the excessive viscosity of the engine oil, when the telescopic end of the L-shaped electric push rod 8 drives the telescopic frame 15 to move, the cleaning ring 7 is hindered by the engine oil with greater viscosity, and the slide bar 16 will gradually drive the limit column head 17 away from the card slot 151, and then the slide bar 16 drives the contact 1 18 and the contact 2 19 to contact. At this time, the external circuit is connected, and the external controller will sound an alarm, which will then remind the staff to come and deal with the supercharger to avoid excessive engine oil leakage due to other problems, such as supercharger damage, intake system pressure exceeding expectations, turbocharger quality problems or blockage of the oil inlet and return pipes.

[0042] The shape of the limit column head 17 is an arc shape, and the material of the limit column head 17 is rubber. The shape of the limit column head 17 is adapted to the shape of the card slot 151. When working, the shape of the limit column head 17 is set to be an arc shape, and the material is rubber, which can not only facilitate the normal movement of the slide bar 16 when the engine oil is less, but also facilitate the limit column head 17 to be pushed out of the card slot 151 when the engine oil is too much, thereby the external controller sends out an alarm.

[0043] The muffler pipe 3 further includes a through groove 20 , which is provided inside the muffler pipe 3 . The shape of the through groove 20 matches the shape of the partition plate 4 , and the partition plate 4 is clamped inside the through groove 20 .

[0044] Working principle: The noise of the supercharger is generated when the gas is ejected at a high speed through the gas outlet 2, which will generate a relatively strong shock wave, thereby generating a huge sound; for this reason, the silencer device of the present invention is proposed. When the silencer pipe 3 is installed, the thread of the silencer pipe 3 is screwed into one side of the gas outlet 2, and the silencer pipe 3 can be installed at this time; when the supercharger is working normally and the gas is discharged through the gas outlet 2, the gas will first enter the inside of the silencer pipe 3, and under the action of the partition 4 of the silencer pipe 3 and the dispersion groove 5, the gas will enter the partition 4. The sound waves generated by the gas will be reflected and interfered in the silencer 3, thereby reducing the noise generation, which is convenient to use; a porous sound-absorbing material 101 is arranged inside the silencer 3, and when the gas generates sound waves in the gas outlet 2 and the sound waves enter the porous sound-absorbing material 101, they will propagate in the pores and experience multiple reflections and scattering, which causes the sound wave energy to be gradually converted into heat energy and dissipated, further reducing the noise generated by the gas during transmission;

[0045] When the vehicle is running, if the oil seal ring ages and causes poor lubrication and other problems, it will cause the problem of oil leakage in the supercharger outlet 2, and the oil will leak into the surface of the middle partition 4 of the silencer 3 along the outlet 2, and the oil will affect the normal silence of the silencer 3; at this time, the external controller controls the telescopic end of the L-shaped electric push rod 8 to move, so that the telescopic end drives the cleaning seat 6 and the cleaning ring 7 to move along the outer peripheral surface of the middle partition 4, so the cleaning ring 7 will clean the oil on the surface of the middle partition 4, And gradually push to the side close to the recovery hole 9; when the cleaning ring 7 moves on the outer peripheral surface of the partition 4, the cleaning ring 7 will simultaneously drive the limiting ball 10 to move. Under the limit of the limiting ball 10 by the spiral groove 11, and the cleaning ring 7 is rotatably arranged on the surface of the cleaning seat 6, so when the cleaning ring 7 moves horizontally, it will also rotate. Therefore, the cleaning ring 7 can quickly process the engine oil on the surface of the partition 4, avoiding excessive adhesion of the engine oil on the surface of the partition 4, resulting in the problem of normal silencing of the partition 4 and the muffler 3, and it is more convenient to use;

[0046] When the cleaning ring 7 is rotated by the mutual limitation of the spiral groove 11 and the limiting ball 10, the cleaning ring 7 will drive the limiting ring 13 to rotate inside the limiting circular groove 12. Under the mutual limitation of the limiting ring 13 and the limiting circular groove 12, the cleaning ring 7 can stably rotate in the limiting circular groove 12, and can also stably process the engine oil; when the L-shaped electric push rod 8 drives the cleaning ring 7 to process the engine oil normally, the limiting column head 17 is located inside the card groove 151, and the contact 1 18 and the contact 2 19 are not in contact; if the supercharger leaks too much engine oil into the air outlet 2, and due to The viscosity of the engine oil is too high. When the telescopic end of the L-shaped electric push rod 8 drives the telescopic frame 15 to move, the cleaning ring 7 is hindered by the engine oil with high viscosity. The sliding rod 16 will gradually drive the limit column head 17 away from the slot 151, and then the sliding rod 16 drives the contact 1 18 and the contact 2 19 to contact. At this time, the external circuit is connected, and the external controller will sound an alarm, which will remind the staff to come and deal with the supercharger to avoid excessive engine oil leakage due to other problems. Other problems include damage to the supercharger, intake system pressure exceeding expectations, turbocharger quality problems, or blockage of the oil inlet and return pipes.

[0047] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A silencer device for a compression shell air outlet, characterized in that: include: Supercharger compressor housing body (1); An air outlet (2), the air outlet (2) being mounted on the surface of the supercharger compression housing body (1); A silencer pipe (3), the silencer pipe (3) being threadedly connected to the outlet end of the outlet port (2), and the outlet port (2) is provided with a thread matching the silencer pipe (3), and the connection between the outlet port (2) and the silencer pipe (3) is sealed by a rubber sealing ring; at least one group of partitions (4), the partitions (4) being installed inside the muffler pipe (3), the partitions (4) dividing the muffler pipe (3) into a plurality of cavities, the shape of the partitions (4) being annular; at least one group of dispersion grooves (5), wherein the dispersion grooves (5) are arranged on the outer peripheral surface of the partition plate (4); A cleaning mechanism, the cleaning mechanism being arranged inside the muffler pipe (3), and being used to clean the engine oil present on the outer peripheral surface of the partition plate (4); The cleaning mechanism comprises: A cleaning seat (6), the cleaning seat (6) being slidably disposed inside the muffler pipe (3); A cleaning ring (7), the cleaning ring (7) being rotatably arranged inside the cleaning seat (6), the diameter of the cleaning ring (7) being larger than the diameter of the partition (4), and the inner wall of the cleaning ring (7) being in contact with the outer peripheral surface of the partition (4) at the middle position; An L-shaped electric push rod (8), the L-shaped electric push rod (8) being mounted on the inner wall of the muffler tube (3), the telescopic end of the L-shaped electric push rod (8) being connected to the side wall of the cleaning seat (6); a limiting unit, the limiting unit being arranged on the outer peripheral surface of the cleaning ring (7), the limiting unit being used to drive the cleaning ring (7) to rotate; A recovery hole (9), the recovery hole (9) being opened at the edge of the inner wall of the muffler pipe (3) and penetrating the muffler pipe (3), the recovery hole (9) being connected to an external recovery pipe; The limiting unit comprises: A limiting ball (10), the limiting ball (10) being mounted on the outer peripheral surface of the cleaning ring (7); A spiral groove (11), wherein the spiral groove (11) is formed on an inner wall of an adjacent partition plate (4) close to the middle partition plate (4), and the spiral groove (11) is not in contact with the dispersion groove (5); and the limiting ball (10) is located inside the spiral groove (11).

2. A compression shell air outlet silencer according to claim 1, characterized in that: The silencer pipe (3) comprises: A porous sound absorbing material (101), wherein the porous sound absorbing material (101) is installed on the inner wall of the muffler pipe (3) and has a gap with the partition plate (4).

3. A compression shell air outlet silencer according to claim 1, characterized in that: The dispersion groove (5) is irregularly designed on the outer peripheral surface of the partition (4), and the partition (4) is clamped with the inside of the silencer pipe (3).

4. A compression shell air outlet silencer according to claim 1, characterized in that: The shape of the limiting ball (10) matches the shape of the spiral groove (11), and a cleaning sleeve is sleeved on the outer surface of the cleaning ring (7).

5. The compression shell air outlet silencer according to claim 1, characterized in that: The cleaning seat (6) comprises: A limiting circular groove (12), wherein the limiting circular groove (12) is formed inside the cleaning seat (6); A limiting circular ring (13), the limiting circular ring (13) is fixedly mounted on the outer peripheral surface of the cleaning ring (7), and the limiting circular ring (13) is rotatably arranged inside the limiting circular groove (12); the shape of the limiting circular ring (13) is adapted to the shape of the limiting circular groove (12).

6. A compression shell air outlet silencer according to claim 1, characterized in that: The L-shaped electric push rod (8) comprises: A telescopic frame (15), wherein the telescopic frame (15) is mounted on the telescopic end of the L-shaped electric push rod (8); A slide rod (16), the slide rod (16) being slidably disposed inside the telescopic frame (15), and the end of the slide rod (16) being connected to the side wall of the cleaning seat (6); A card slot (151), the card slot (151) being formed on an inner wall of the telescopic frame (15); A limiting column head (17), wherein the limiting column head (17) is mounted on the surface of the sliding rod (16), and the limiting column head (17) is located inside the card slot (151); Contact point 1 (18), the contact point 1 (18) being mounted on the surface of the slide bar (16) and away from the side of the limiting column head (17); Contact point 2 (19), the contact point 2 (19) is mounted on the inner wall of the telescopic frame (15) and corresponds to contact point 1 (18).

7. A compression shell air outlet silencer according to claim 6, characterized in that: The limiting column head (17) is in the shape of an arc, the limiting column head (17) is made of rubber, and the shape of the limiting column head (17) is compatible with the shape of the slot (151).

8. The compression shell air outlet silencer according to claim 1, characterized in that: The silencer pipe (3) further comprises: A through groove (20), wherein the through groove (20) is provided inside the muffler pipe (3), the shape of the through groove (20) matches the shape of the partition plate (4), and the partition plate (4) is snap-fitted inside the through groove (20).

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