Engine muffler with exhaust gas purification structure

Abstract

The present invention relates to the technical field of mechanical parts, and specifically to an engine muffler with an exhaust gas purification structure, comprising two shells, a sealing ring is sleeved between the two shells, a plurality of plug-in blocks are fixedly connected to the inner side of the sealing ring, a purification plate is sleeved on the inner side of the sealing ring, a plurality of slots are opened on the outer side of the purification plate, the plug-in blocks match the slots, the plug-in blocks are clamped in the inside of the slots, and a plurality of plug rods are fixedly connected to the left side of the right shell; the beneficial effect is: by modularizing the shell and sleeve the sealing ring between the two shells and the outside of the purification plate, and then used in conjunction with an airbag, not only the overall sealing of the engine casing is improved, but also the service life of the purification plate is prolonged, and the purification plate can be conveniently replaced, thereby making the maintenance and replacement of the engine muffler more convenient, reducing the maintenance cost, and thus making the use economy more high.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical parts, and in particular to an engine muffler with an exhaust gas purification structure. Background Art

[0002] The engine muffler is an important component in the automobile exhaust system. It is used to reduce the noise generated when the engine of the motor vehicle is working so that the driver can drive comfortably.

[0003] The engine muffler in the prior art generally has a purification plate, i.e., a catalytic converter, installed inside to purify harmful substances such as carbon monoxide, hydrocarbons, and nitrogen oxides in the exhaust gas, so as to reduce the installation space occupied by it in the automobile exhaust system. In addition, it generally adopts an integrated shell, which makes the overall structure more robust, can better withstand mechanical stress and high temperature environment, reduces the risk of air leakage, and improves the sealing and safety of the system.

[0004] However, in actual use, since the silencer generates vibrations when silencing, the catalytic converter will be damaged or naturally aged when it is in contact with the silencer structure for a long time. When the internal components need to be replaced, the entire muffler needs to be replaced, which makes the disassembly and installation process complicated and the maintenance inconvenient. In addition, replacing the entire muffler also increases material waste and resource consumption, resulting in high replacement costs, which in turn makes the use economy low. Therefore, technical personnel in this field now propose an engine muffler with an exhaust gas purification structure to solve the problem of inconvenience in maintenance and high maintenance costs caused by the short service life of the purification plate in the above-mentioned engine muffler, which makes the use economy low. Summary of the invention

[0005] The object of the present invention is to provide an engine muffler with an exhaust gas purification structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an engine muffler with an exhaust gas purification structure, comprising two shells, a sealing ring is sleeved between the two shells, a plurality of plug-in blocks are fixedly connected to the inner side of the sealing ring, a purification plate is sleeved on the inner side of the sealing ring, a plurality of slots are provided on the outer side of the purification plate, the plug-in blocks match the slots, the plug-in blocks are clamped in the inside of the slots, a plurality of plug-in rods are fixedly connected to the left side of the right shell, the left side of the plug-in rods penetrates the sealing ring and is inserted into the inside of the left shell, a convex ring is fixedly connected to the outside of the plug-in rod, a plurality of connecting grooves are provided inside the left shell, a plurality of limiting grooves are provided inside the connecting groove, a rubber sleeve is inserted in the inside of the connecting groove, the right end of the rubber sleeve is fixedly connected to the left side of the sealing ring, and the inside of the rubber sleeve is provided The cam is connected with the locking cam at the bottom of the locking cam, and the locking cam is connected with the locking cam on the bottom of the locking cam, so that the locking cam can be effectively prevented from sliding into the locking cam by the locking cam.

[0007] Preferably, a plurality of mounting grooves are provided on the inner and outer sides of the shell, a rubber block is fixedly connected to the inner wall of the mounting groove, a slider is fixedly connected to the other end of the rubber block, and an extrusion rod is fixedly connected to the end of the slider away from the rubber block.

[0008] Preferably, an installation groove 2 is opened on the upper side of the installation groove 1, a push block is slidably connected inside the installation groove 2, one end of the push block is fixedly connected to a slider 2, the other end of the push block is fixedly connected to an extrusion rod 2, and the inner wall of the installation groove 2 is fixedly connected to a rubber block 2.

[0009] Preferably, a plurality of protrusions are fixedly connected to the outside of the rubber sleeve, and the protrusions match the limiting grooves, and the protrusions fit the limiting grooves.

[0010] Preferably, the slider 1 is slidably connected to the inside of the mounting groove 1, the side of the slider 1 close to the slider 2 is an inclined surface, and the left side of the extrusion rod 1 is in contact with the outside of the sealing ring.

[0011] Preferably, the side of the sliding block 2 away from the push block is an inclined surface, and the other end of the rubber block 2 is fixedly connected to the push block.

[0012] Preferably, the sliders 1 on the left and right sides are symmetrically distributed, the slider 1 matches the slider 2, and the inclined surface of the slider 1 is slidably connected to the inclined surface of the slider 2.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention proposes an engine muffler with an exhaust gas purification structure. By modularizing the shell, a sealing ring is sleeved between the two shells, and the sealing ring is installed on the outside of the purification plate, and then used in conjunction with an airbag, not only the overall sealing of the engine shell is improved, but also the service life of the purification plate is prolonged, and the purification plate can be conveniently replaced, thereby making the maintenance and replacement of the engine muffler more convenient, reducing the maintenance cost, and thus making it more economical to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereogram of the present invention;

[0016] Figure 2 A top view of the present invention;

[0017] Figure 3 This is a schematic diagram of the sealing ring structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the purification plate of the present invention;

[0019] Figure 5 It is a schematic diagram of the airbag structure of the present invention;

[0020] Figure 6 For the present invention Figure 2 Structural cross-section at AA in the middle;

[0021] Figure 7 For the present invention Figure 6 A magnified view of the structure at center;

[0022] Figure 8 For the present invention Figure 6 A magnified view of the structure at B in the middle;

[0023] Fig. 9 For the present invention Figure 6 A magnified view of the structure at C in the middle;

[0024] Fig.10 For the present invention Figure 6 Enlarged view of the structure at point D in the middle.

[0025] In the figure: 1. shell; 2. sealing ring; 3. plug-in block; 4. purification board; 5. slot; 6. airbag; 7. placement slot; 8. elastic card block; 9. card slot; 10. plug-in rod; 11. extrusion rod 1; 12. connecting port; 13. connecting slot; 14. rubber sleeve; 15. slide slot; 16. convex ring; 17. limit slot; 18. installation slot 1; 19. rubber block 1; 20. slider 1; 21. installation slot 2; 22. slider 2; 23. push block; 24. extrusion rod 2; 25. rubber block 2. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figures 1 to 10The present invention provides a technical solution: an engine muffler with an exhaust gas purification structure, comprising two shells 1, a plurality of card slots 9 are provided on the outer side of the shell 1, a placement slot 7 is provided on the outer side of the shell 1, and the placement slot 7 is provided on the outer side of the card slot 9, so that the groove distribution outside the shell 1 is relatively uniform, a sealing ring 2 is sleeved between the two shells 1, and the sealing ring 2 plays a role in sealing the connection between the two shells 1, a plurality of plug-in blocks 3 are fixedly connected to the inner side of the sealing ring 2, a purification plate 4 is sleeved on the inner side of the sealing ring 2, and the purification plate 4 is a catalytic converter, and a plurality of slots 5 are provided on the outer side of the purification plate 4, and the plug-in blocks 3 are connected to the slots 5. The plug block 3 is connected to the inside of the slot 5 to limit the installation of the purification plate 4, so that its installation stability is higher. A plurality of plug rods 10 are fixedly connected to the left side of the right shell 1. The left side of the plug rod 10 passes through the sealing ring 2 and is plugged into the inside of the left shell 1, so that not only the two shells 1 are connected, but also the sealing ring 2 is limited, so that the installation stability of the sealing ring 2 is higher, and thus the purification plate 4 can be installed more stably. An airbag 6 is fixedly connected to the middle part of the outer periphery of the sealing ring 2, and the airbag 6 is sleeved on the outside of the shell 1. The airbag 6 is plugged into the inside of the placement groove 7, and the airbag 6 is plugged into the placement slot opened on the outside of the shell 1. The inside of the placement groove 7, so that when the shell 1 leaks, the airbag 6 can expand and fill the inside of the placement groove 7, thereby increasing the connection stability of the two shells 1 and being able to squeeze the shell 1, thereby making the connection between the two shells 1 more sealed, so that the silencer will not leak gas to the outside air when in use, thereby making the connection sealing of the silencer better, and the outer periphery of the sealing ring 2 is fixedly connected with elastic card blocks 8 on both sides, the elastic card blocks 8 are fixedly connected to the inner side of the airbag 6, the elastic card blocks 8 are clamped on the outside of the shell 1, the elastic card blocks 8 are clamped on the inside of the card groove 9, and the elastic card blocks 8 are clamped on the outside of the shell 1 The inside of the card slot 9 makes the connection between the two shells 1 more stable, so that the two shells 1 will not be easily separated. The inner side of the sealing ring 2 is fixedly connected with a connecting port 12, and the inner side of the connecting port 12 fits with the connection between the sealing ring 2 and the shell 1, so as to collect other leaks from the connection of the shell 1 so that it can enter the interior of the airbag 6. The inside of the shell 1 is slidably connected with a plurality of squeezing rods 24, which fit with the outer side of the sealing ring 2, so as to squeeze the sealing ring 2, so that the sealing ring 2 can push the plug block 3 and the slot 5 to be plugged more tightly, so that the purification plate 4 is installed more stably.

[0028] When installing the purification plate 4, the purification plate 4 is sleeved inside the sealing ring 2, and then the sealing ring 2 is sleeved on the left shell 1, and then the right shell 1 is sleeved on the right side of the sealing ring 2. At this time, the insertion rod 10 can penetrate the sealing ring 2 and enter the interior of the shell 1, so that the position of the sealing ring 2 is restricted and the two shells 1 are connected. At this time, the extrusion rod 24 can move inwardly, so as to squeeze the sealing ring 2, so that the plug 3 inside the sealing ring 2 can fit tightly with the slot 5, so that the purification plate 4 is installed more stably, so that the connecting port 12 can fit with the connection between the two shells 1, and then the elastic card block 8 is clamped in the card slot 9, and the airbag 6 is inserted into the placement slot 7. When the connection of the shell 1 leaks, the gas can enter the interior of the airbag 6 through the connecting port 12. The airbag 6 is able to expand inside the placement groove 7, so that the airbag 6 can be tightly engaged with the placement groove 7, thereby further increasing the connection stability of the two shells 1. When the purification plate 4 needs to be disassembled, the airbag 6 is pulled out from the inside of the placement groove 7, and the elastic block 8 is taken out from the inside of the card groove 9, and then the two shells 1 are pulled apart, so that the extrusion rod 24 no longer squeezes the sealing ring 2, thereby loosening the sealing ring 2 and the purification plate 4, and allowing the insertion rod 10 to be detached from the inside of the left shell 1, thereby exposing the purification plate 4 to the outside. At this time, the purification plate 4 is taken out from the inside of the sealing ring 2, and the sealing ring 2 can be conveniently disassembled and installed, thereby making it easier to maintain and replace the engine muffler, reducing the maintenance cost, and thus making it more economical to use.

[0029] Embodiment 2: On the basis of embodiment 1, in order to achieve a tighter installation between the sealing ring 2 and the shell 1, a convex ring 16 is fixedly connected to the outside of the plug rod 10, and the end of the plug rod 10 away from the right shell 1 is spherical, so that the plug rod 10 can easily enter the inside of the left shell 1, and the left and right sides of the convex ring 16 are conical, so that the convex ring 16 can easily enter the inside of the left extrusion rod 11, and a plurality of connecting grooves 13 are provided inside the left shell 1, and a plurality of limiting grooves 17 are provided inside the connecting grooves 13, and the convex blocks match the limiting grooves 17, and the convex blocks fit the limiting grooves 17, and the connecting grooves 13 are connected to the left shell 11. A rubber sleeve 14 is inserted into the interior, and a plurality of protrusions are fixedly connected to the outside of the rubber sleeve 14, so that the contact friction between the rubber sleeve 14 and the left connecting groove 13 is greater, so that the installation stability of the two shells 1 is higher, and the right end of the rubber sleeve 14 is fixedly connected to the left side of the sealing ring 2, and a slide groove 15 is provided inside the rubber sleeve 14, and the slide groove 15 is slidably connected to the insertion rod 10, so that the insertion rod 10 can enter the inside of the slide groove 15, and the convex ring 16 fits with the inner wall of the slide groove 15, so that the rubber sleeve 14 can be squeezed to produce deformation, and then the protrusions on the outside of the rubber sleeve 14 can be pushed to fit tightly with the inside of the limiting groove 17.

[0030] When the insertion rod 10 enters the left shell body 1, the insertion rod 10 is able to enter the inside of the slide groove 15 and drive the rubber sleeve 14 to enter the inside of the connecting groove 13. In this process, the spherical end of the insertion rod 10 can squeeze the rubber sleeve 14 to produce deformation, so that the rubber sleeve 14 can fit tightly with the inside of the connecting groove 13, thereby improving the connection stability, and the convex ring 16 can follow the spherical end of the insertion rod 10 into the inside of the slide groove 15, so that the convex ring 16 can squeeze the rubber sleeve 14 again to produce deformation, so that the convex block on the outside of the rubber sleeve 14 can fit tightly with the inside of the limiting groove 17, thereby further improving the friction between the rubber sleeve 14 and the connecting groove 13, so that the rubber sleeve 14 is not easy to detach from the inside of the connecting groove 13, thereby making the connection stability of the two shell bodies 1 higher, thereby making the connection sealing between the shell body 1 and the sealing ring 2 higher, so that the muffler will not leak easily.

[0031] Embodiment 3: On the basis of embodiment 2, in order to achieve a higher stability in the installation of the sealing ring 2, a plurality of mounting grooves 18 are provided on the inner and outer sides of the shell 1, and a rubber block 19 is fixedly connected to the inner wall of the mounting groove 18, and a slider 20 is fixedly connected to the other end of the rubber block 19. The slider 20 is slidably connected to the inside of the mounting groove 18, and the mounting groove 18 limits the internal slider 20 so that the slider 20 will not deviate when sliding. The side of the slider 20 close to the slider 22 is an inclined surface, and the end of the slider 20 away from the rubber block 19 is fixedly connected to an extrusion rod 11, and the left side of the extrusion rod 11 is in contact with the outside of the sealing ring 2, so that the extrusion rod 11 can squeeze the sealing ring 2.

[0032] When the two shells 1 are both mounted on the sealing ring 2, the sealing ring 2 can push the extrusion rods 11 on the left and right sides to move away from each other, so that the extrusion rods 11 can push the slider 20 at the corresponding position to move away from the extrusion rods 11, so that it can squeeze the rubber block 19 to produce deformation. When the rubber block 19 performs a reset movement, the rubber block 19 can push the extrusion rod 11 through the slider 20 to fit tightly with the outer side of the sealing ring 2, and then squeeze the sealing ring 2, so that the installation of the sealing ring 2 is more stable, thereby making the installation stability of the purification plate 4 higher.

[0033] Embodiment 4: On the basis of embodiment 3, in order to further improve the installation stability of the sealing ring 2 and the purification plate 4, an installation groove 21 is opened on the upper side of the installation groove 18, and a push block 23 is slidably connected inside the installation groove 21. The installation groove 21 limits the push block 23, so that the push block 23 will not deviate when moving. One end of the push block 23 is fixedly connected to a slider 22, and the side of the slider 22 away from the push block 23 is an inclined surface. The other end of the push block 23 is fixedly connected to the extrusion rod 24, and the inner wall of the installation groove 21 is fixedly connected to a rubber block 25, and the other end of the rubber block 25 is fixedly connected to the push block 23. The sliders 20 on the left and right sides are symmetrically distributed, so that the extrusion force of the extrusion rod 24 and other structures on the left and right sides on the sealing ring 2 is more uniform, and the slider 1 20 matches the slider 22, and the inclined surface of the slider 1 20 is slidably connected to the inclined surface of the slider 22, so that the slider 1 20 can push the slider 22 to move.

[0034] When the extrusion rod 11 pushes the slider 20 to extrude the rubber block 19, the inclined surface of the slider 20 can slide in accordance with the inclined surface of the slider 22, thereby pushing the slider 22 to move away from the slider 20, so that it can push the push block 23 to move away from the slider 20, and then the push block 23 can push the extrusion rod 24 to extrude the outside of the sealing ring 2, so that the sealing ring 2 can push the plug block 3 to fit tightly with the slot 5, so that the purification plate 4 can be installed more stably, thereby greatly reducing the influence of vibration on it, so that the purification plate 4 can purify the exhaust gas stably for a long time.

[0035] Embodiment 5: Based on Embodiment 4, a method for using an engine muffler with an exhaust gas purification structure is proposed, comprising the following steps:

[0036] Step 1: First, pull out the airbag 6 from the inside of the placement groove 7, and take out the elastic block 8 from the inside of the groove 9, and then pull the two shells 1 to the side away from each other, so that the squeezing rod 24 no longer squeezes the sealing ring 2, so that the sealing ring 2 and the purification plate 4 are loosened, and the insertion rod 10 is separated from the inside of the left slide groove 15, and the rubber sleeve 14 is separated from the inside of the connecting groove 13, so that the purification plate 4 is exposed to the outside, and the purification plate 4 is taken out from the inside of the sealing ring 2 at this time, and the purification plate 4 can be conveniently disassembled;

[0037] Step 2: By sleeved the purification plate 4 inside the sealing ring 2, and then sleeved the sealing ring 2 on the left shell 1, and then sleeved the right shell 1 on the right side of the sealing ring 2, at this time, the plug rod 10 can penetrate the sealing ring 2 and enter the inside of the shell 1, so that the plug rod 10 can enter the inside of the slide groove 15, and drive the rubber sleeve 14 to enter the inside of the connecting groove 13. In this process, the spherical end of the plug rod 10 can squeeze the rubber sleeve 14 to produce deformation, so that the rubber sleeve 14 can fit tightly with the inside of the connecting groove 13, thereby improving the connection stability. Moreover, the convex ring 16 can follow the spherical end of the insertion rod 10 into the interior of the slide groove 15, so that the convex ring 16 can squeeze the rubber sleeve 14 again to produce deformation, so that the convex block on the outside of the rubber sleeve 14 can fit tightly with the inside of the limiting groove 17, so that the friction between the rubber sleeve 14 and the connecting groove 13 is further improved, so that the rubber sleeve 14 is not easy to be separated from the inside of the connecting groove 13, so that the connection stability of the two shells 1 is higher, so that the connection sealing between the shell 1 and the sealing ring 2 is higher, so that the muffler will not leak easily;

[0038] Step 3: When the sealing ring 2 is sleeved on the housing 1, the sealing ring 2 can push the extrusion rods 11 on the left and right sides to move away from each other, so that the extrusion rods 11 can push the slider 20 at the corresponding position to move away from the extrusion rods 11, so that the rubber block 19 can be squeezed to deform, and when the rubber block 19 performs a reset movement, the rubber block 19 can push the extrusion rod 11 through the slider 20 to fit closely with the outer side of the sealing ring 2, and then squeeze the sealing ring 2, so that the installation of the sealing ring 2 is more stable, thereby making the installation stability of the purification plate 4 higher;

[0039] Step 4: When the extrusion rod 11 pushes the slider 20 to squeeze the rubber block 19, the inclined surface of the slider 20 can slide in contact with the inclined surface of the slider 22, thereby pushing the slider 22 to move away from the slider 20, so that it can push the push block 23 to move away from the slider 20, so that the push block 23 can push the extrusion rod 24 to squeeze the outside of the sealing ring 2, so that the sealing ring 2 can push the plug 3 to fit tightly with the slot 5, so that the purification plate 4 can be installed more stably, and the influence of vibration on it is greatly reduced, so that the purification plate 4 can purify the exhaust gas stably for a long time;

[0040] Step 5: After the shell 1 is connected to the sealing ring 2, the elastic card block 8 is clamped in the card slot 9, and the airbag 6 is inserted into the placement slot 7. When the connection of the shell 1 leaks, the gas can enter the airbag 6 through the connecting port 12, so that the airbag 6 can expand in the placement slot 7, and then the airbag 6 can be tightly engaged with the placement slot 7, which not only makes the overall sealing of the engine casing higher, but also prolongs the service life of the purification plate 4, and can conveniently replace the purification plate 4, thereby making the maintenance and replacement of the engine muffler more convenient, reducing the maintenance cost, and thus making it more economical to use.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine muffler with an exhaust gas purification structure, comprising two housings (1), characterized in that: A sealing ring (2) is sleeved between the two shells (1), a plurality of plug blocks (3) are fixedly connected to the inner side of the sealing ring (2), a purification plate (4) is sleeved on the inner side of the sealing ring (2), a plurality of slots (5) are opened on the outer side of the purification plate (4), the plug blocks (3) match the slots (5), the plug blocks (3) are snap-fitted into the inside of the slots (5), a plurality of plug rods (10) are fixedly connected to the left side of the right shell (1), the left side of the plug rods (10) penetrates the sealing ring (2) and is inserted into the left shell The housing (1) is provided with a convex ring (16) fixedly connected to the outside of the plug rod (10); a plurality of connection grooves (13) are provided inside the housing (1) on the left side; a plurality of limit grooves (17) are provided inside the connection groove (13); a rubber sleeve (14) is inserted into the connection groove (13); the right end of the rubber sleeve (14) is fixedly connected to the left side of the sealing ring (2); a sliding groove (15) is provided inside the rubber sleeve (14); the sliding groove (15) is slidably connected to the plug rod (10); the plug rod (10) The end away from the right shell (1) is spherical in design, the left and right sides of the convex ring (16) are conical in design, the convex ring (16) is in contact with the inner wall of the slide groove (15), the middle part of the outer periphery of the sealing ring (2) is fixedly connected with an air bag (6), the air bag (6) is sleeved on the outside of the shell (1), the outer periphery of the sealing ring (2) is fixedly connected with elastic blocks (8), the elastic blocks (8) are clamped on the outside of the shell (1), and the outer side of the shell (1) is provided with a plurality of slots (9). The outer side of the shell (1) is provided with a placement groove (7), the placement groove (7) is provided on the outer side of the card slot (9), the airbag (6) is inserted into the placement groove (7), the elastic card block (8) is card-engaged in the card slot (9), the elastic card block (8) is fixedly connected to the inner side of the airbag (6), the inner side of the sealing ring (2) is fixedly connected with a connection port (12), and the interior of the shell (1) is slidably connected with a plurality of extrusion rods (24), and the extrusion rods (24) are in contact with the outer side of the sealing ring (2).

2. The engine muffler with exhaust gas purification structure according to claim 1, characterized in that: The shell (1) is provided with a plurality of mounting grooves (18) on the inner and outer sides thereof; a rubber block (19) is fixedly connected to the inner wall of the mounting groove (18); a slider (20) is fixedly connected to the other end of the rubber block (19); and an end of the slider (20) away from the rubber block (19) is fixedly connected to an extrusion rod (11).

3. The engine muffler with exhaust gas purification structure according to claim 2, characterized in that: A second mounting groove (21) is provided on the upper side of the first mounting groove (18), a push block (23) is slidably connected inside the second mounting groove (21), one end of the push block (23) is fixedly connected to a second sliding block (22), the other end of the push block (23) is fixedly connected to a second extrusion rod (24), and a second rubber block (25) is fixedly connected to the inner wall of the second mounting groove (21).

4. The engine muffler with exhaust gas purification structure according to claim 1, characterized in that: A plurality of protrusions are fixedly connected to the outside of the rubber sleeve (14), the protrusions match the limiting grooves (17), and the protrusions fit the limiting grooves (17).

5. The engine muffler with exhaust gas purification structure according to claim 2, characterized in that: The slider one (20) is slidably connected inside the mounting groove one (18); the side of the slider one (20) close to the slider two (22) is an inclined surface; the left side of the extrusion rod one (11) is in contact with the outside of the sealing ring (2).

6. The engine muffler with exhaust gas purification structure according to claim 3, characterized in that: The side of the second sliding block (22) away from the push block (23) is an inclined surface, and the other end of the second rubber block (25) is fixedly connected to the push block (23).

7. The engine muffler with exhaust gas purification structure according to claim 6, characterized in that: The sliders 1 (20) on the left and right sides are symmetrically distributed, the slider 1 (20) matches the slider 2 (22), and the inclined surface of the slider 1 (20) is slidably connected to the inclined surface of the slider 2 (22).

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