Stable sealing connection structure, detachable noise elimination and exhaust assembly for large-displacement vehicle and assembling method of noise elimination and exhaust assembly

Abstract

The invention relates to the technical field of vehicle noise elimination, in particular to a stable sealing connection structure, a detachable large-displacement vehicle noise elimination exhaust assembly and an assembling method thereof.The stable sealing connection structure comprises a communicating pipe, a guide groove is formed in the end of the communicating pipe, the communicating pipe is sleeved with an air supply pipe, and a guide rod embedded in the guide groove in a sliding mode is arranged on the inner wall of the air supply pipe; a supporting plate is arranged on the communicating pipe; the sealing connection mechanism is arranged on the supporting plate and is connected with the air supply pipe; the follow-up assembly is arranged on the supporting plate and connected with the sealing connecting mechanism, the supporting plate is further provided with a triggering rotating mechanism connected with the follow-up assembly and the sealing connecting mechanism, and the sealing connecting mechanism can drive the follow-up assembly and the triggering rotating mechanism to move when the air supply pipe is sleeved with the communicating pipe so as to lock the air supply pipe; and the one-way locking assembly is arranged on the communicating pipe and connected with the follow-up assembly, and when the communicating pipe is sleeved with the air supply pipe, mutual connection can be automatically carried out, and sealing treatment is carried out.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle silencers, in particular to a stable sealing connection structure, a detachable large-displacement vehicle silencer exhaust assembly and an assembling method thereof. Background Art

[0002] With the improvement of consumer purchasing power and the change of consumption concepts, the large and medium-displacement motorcycle market has shown great development potential. The overall development trend of large and medium-displacement motorcycles is getting better and better, and market demand and sales continue to grow.

[0003] As one of the important parts of a motorcycle, the motorcycle muffler plays a role in purifying the exhaust gas and reducing noise of the motor vehicle. The quality of the sound directly determines the level of the motorcycle's sound quality. It is also an important part of the overall appearance of the motorcycle.

[0004] When assembling the muffler, the intake pipe of the muffler and the exhaust pipe of the catalytic unit are usually connected to each other through bolts and other parts. This requires the assistance of tools during the installation and disassembly process, and the process is relatively complicated. In addition, if the operation is wrong during the installation process, the intake pipe and the exhaust pipe may not be tightly connected, resulting in gas leakage. Summary of the invention

[0005] The object of the present invention is to provide a stable sealing connection structure, a detachable large-displacement vehicle muffler exhaust assembly and an assembly method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A stable sealing connection structure, comprising: A connecting pipe, wherein a guide groove is provided at the end of the connecting pipe, an air supply pipe is sleeved on the connecting pipe, a guide rod slidably engaged with the guide groove is provided on the inner wall of the air supply pipe, and a support plate is provided on the connecting pipe; Also includes: A sealing connection mechanism, disposed on the support plate and connected to the air supply pipe; A follower assembly is arranged on the support plate and connected to the sealing connection mechanism. A triggering rotating mechanism connected to the follower assembly and the sealing connection mechanism is also arranged on the support plate. When the air supply pipe is inserted into the connecting pipe, the sealing connection mechanism can drive the follower assembly and the triggering rotating mechanism to move, so as to perform a locking action on the air supply pipe; A one-way locking assembly is arranged on the connecting pipe and connected to the follower assembly. The one-way locking assembly can be activated when the follower assembly moves to guide the follower assembly to move in a single direction.

[0007] As a further solution of the present invention: the sealing connection mechanism includes a rotating sleeve rotatably mounted on the support plate and sleeved on the connecting pipe, a sealing ring is provided at the end of the rotating sleeve, a limiting disk is provided on the rotating sleeve, a plurality of sliding grooves equidistantly distributed around the circumference are opened on the limiting disk, and a sliding assembly is provided in the sliding groove.

[0008] As a further solution of the present invention: the sliding assembly includes a sliding block slidably installed in the sliding groove, the side wall of the sliding block is provided with a support column, the support column is provided with a first limiting ring and a second limiting ring, and the air supply pipe is provided with a limiting structure connected to the support column.

[0009] As a further solution of the present invention: the limiting structure includes a support plate installed on the air supply pipe and abutting against the sealing ring, the support plate is in abutment with the first limiting ring and the second limiting ring, and a guide groove is provided on the support plate, and the guide groove is slidably engaged with the support column.

[0010] As a further solution of the present invention: the follower assembly includes a rotating ring rotatably mounted on the support plate and sleeved on the connecting pipe, and a connecting rod hinged to the sliding block is hinged on the rotating ring.

[0011] As a further solution of the present invention: the trigger rotation mechanism includes a spiral groove opened on the circumferential outer wall of the rotating sleeve, a guide column is arranged on the support plate, a movable ring slidingly connected to the rotating sleeve is slidably mounted on the guide column, a limit block slidingly engaged with the spiral groove is arranged on the inner wall of the movable ring, and an elastic component connected to the movable ring is arranged on the rotating sleeve.

[0012] As a further solution of the present invention: the elastic component includes a first spring and a second spring mounted on the rotating sleeve, the two ends of the first spring are respectively abutted against the movable ring and the limiting plate, and the two ends of the second spring are respectively abutted against the movable ring and the support plate.

[0013] As a further solution of the present invention: the one-way locking assembly includes a follower tooth installed on the end of the rotating ring, a limit tooth cooperating with the follower tooth is slidably installed on the connecting tube, a fixing ring is provided on the connecting tube, and a third spring is sleeved on the connecting tube, and both ends of the third spring are respectively abutted against the fixing ring and the limit tooth.

[0014] A detachable muffler exhaust assembly for a large-displacement vehicle, comprising: A muffler shell, the muffler shell is connected to the air supply pipe, and the muffler shell is connected to an exhaust pipe; A first partition plate and a second partition plate are arranged in the muffler shell, and muffler holes are respectively opened on the first partition plate and the second partition plate, and a muffler pipe penetrating through the second partition plate is arranged on the first partition plate.

[0015] A method for assembling a detachable large-displacement vehicle muffler exhaust assembly comprises the following steps: Step 1: Put the air supply pipe onto the connecting pipe, and make the guide rod slide and fit into the guide groove; Step 2: The air supply pipe will also drive the sealing connection mechanism to move, thereby driving the follower component and triggering the rotation mechanism to move; Step 3: When the air supply pipe moves to the specified position, under the action of the triggering rotation mechanism and the one-way locking assembly, a double locking force is provided through the sealing connection mechanism to fix the air supply pipe on the connecting pipe and seal the air supply pipe.

[0016] Compared with the prior art, the beneficial effect of the present invention is that the present application can automatically lock the position of the air supply pipe and perform a sealing treatment when the air supply pipe is inserted into the connecting pipe. Specifically, when the air supply pipe is inserted into the connecting pipe, the guide rod is controlled to slide and engage with the guide groove so that the air supply pipe does not rotate. The air supply pipe will also drive the sealing connection mechanism to move, thereby driving the follow-up component and the trigger rotation mechanism to move. When the air supply pipe moves to the desired position, under the action of the follow-up component and the trigger rotation mechanism, the position of the air supply pipe is locked through the sealing connection mechanism, and the air supply pipe is sealed. At the same time, under the action of the one-way locking component, the air supply pipe is further locked.

[0017] If the support plate is subjected to a force moving in a direction away from the limit plate, since the support column is located in the annular groove, the sliding block cannot slide in the sliding groove. Under the action of the connecting rod, the position of the limit plate is restricted, thereby ensuring that the position of the support plate does not change, so as to lock the position of the support plate when the support plate is in contact with the sealing ring.

[0018] If the air supply pipe needs to be disassembled, at this time, the limit tooth can be controlled to move in the direction away from the follower tooth, so that the rotating sleeve can rotate freely. At the same time, the rotating sleeve is manually controlled to reverse and drive the limit plate to rotate, so as to control the separation of the air supply pipe and the connecting pipe through the follower assembly and the sealing connection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a structural schematic diagram of an embodiment of a detachable silencer exhaust assembly for a large-displacement vehicle.

[0020] Figure 2 The present invention is a structural schematic diagram from another angle of an embodiment of a detachable large-displacement vehicle muffler exhaust assembly.

[0021] Figure 3The present invention is a schematic diagram of the structure inside the muffler shell of an embodiment of a detachable large-displacement vehicle muffler exhaust assembly.

[0022] Figure 4 The figure is a schematic structural diagram of another angle of the interior of the muffler shell in one embodiment of a detachable large-displacement vehicle muffler exhaust assembly.

[0023] Figure 5 The present invention is a schematic diagram of the connection relationship among a one-way locking component, a triggering rotation mechanism, a follower component, and a partial sealing connection mechanism in one embodiment of a detachable large-displacement vehicle muffler exhaust assembly.

[0024] Figure 6 for Figure 5 Schematic diagram of the structure from another angle.

[0025] Figure 7 The present invention is a structural schematic diagram of a partial sealing connection mechanism, a partial triggering rotation mechanism, and a follower component in one embodiment of a detachable large-displacement vehicle muffler exhaust assembly.

[0026] Figure 8 The present invention is a schematic structural diagram of a support plate, an air supply pipe and a guide rod in one embodiment of a detachable large-displacement vehicle muffler exhaust assembly.

[0027] Fig. 9 The exploded structure schematic diagram of a partial sealing connection mechanism and a partial triggering rotation mechanism in one embodiment of a detachable large-displacement vehicle muffler exhaust assembly.

[0028] Fig.10 The present invention is a schematic diagram of the exploded structure of a partial sealing connection mechanism in one embodiment of a detachable large-displacement vehicle muffler exhaust assembly.

[0029] In the figure: 1, connecting pipe; 101, guide groove; 2, support plate; 3, rotating sleeve; 301, sealing ring; 302, spiral groove; 4, limiting plate; 401, slide groove; 5, sliding block; 6, supporting column; 601, first limiting ring; 602, second limiting ring; 7, air supply pipe; 701, guide rod; 8, supporting plate; 801, limiting hole; 802, vertical groove; 803, annular groove; 9, guide column; 10. Movable ring; 11. Limit block; 12. First spring; 13. Second spring; 14. Rotating ring; 1401. Follow-up tooth; 15. Connecting rod; 16. Limit tooth; 17. Third spring; 18. Fixed ring; 19. Muffler shell; 20. Exhaust pipe; 21. First partition; 2101. Muffler hole; 22. Second partition; 23. Expansion chamber; 24. SMD resistive plate; 25. Muffler pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0031] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0032] See also Figure 1 to Figure 10 In an embodiment of the present invention, a stable sealing connection structure includes: A connecting pipe 1, wherein a guide groove 101 is formed at the end of the connecting pipe 1, an air supply pipe 7 is sleeved on the connecting pipe 1, and a guide rod 701 is provided on the inner wall of the air supply pipe 7 to slide and engage with the guide groove 101, and a support plate 2 is provided on the connecting pipe 1; Also includes: See also Figure 1 , Figure 2 , Figure 5-Figure 10 , a sealing connection mechanism is arranged on the support plate 2 and connected to the air supply pipe 7, the sealing connection mechanism includes a rotating sleeve 3 rotatably mounted on the support plate 2 and sleeved on the connecting pipe 1, a sealing ring 301 is arranged at the end of the rotating sleeve 3, a limiting plate 4 is arranged on the rotating sleeve 3, a plurality of slide grooves 401 equidistantly distributed on the circumference are opened on the limiting plate 4, a sliding component is arranged in the slide groove 401, wherein the sliding component includes a sliding block 5 slidably mounted in the slide groove 401 The side wall of the sliding block 5 is provided with a support column 6, and the support column 6 is provided with a first limiting ring 601 and a second limiting ring 602. The air supply pipe 7 is provided with a limiting structure connected with the support column 6. The above-mentioned limiting structure includes a support plate 8 installed on the air supply pipe 7 and abutting against the sealing ring 301. The support plate 8 is in abutment with the first limiting ring 601 and the second limiting ring 602. A guide groove is opened on the support plate 8, and the guide groove is slidably engaged with the support column 6.

[0033] In detail, there are four groups of guide grooves equidistantly distributed around the circumference, each group of guide grooves includes a limiting hole 801, a vertical groove 802, and an annular groove 803, and the two ends of the vertical groove 802 are connected to the limiting hole 801 and the annular groove 803 respectively, the size of the limiting hole 801 is equivalent to the second limiting ring 602, and is smaller than the size of the first limiting ring 601, the sizes of the first limiting ring 601 and the second limiting ring 602 are both larger than the sizes of the vertical groove 802 and the annular groove 803, and the spacing between the first limiting ring 601 and the second limiting ring 602 is the same as the thickness of the support plate 8, the circumferential diameter of the support column 6 is equivalent to the sizes of the vertical groove 802 and the annular groove 803, in the initial state, the limiting plate 4 is not subjected to external force, at this time, the limiting plate 4 is located at the end of the stroke away from the support plate 2, and the sliding block 5 is located at the end of the stroke in the slide groove 401, so that the spacing between the multiple sliding blocks 5 The distance is the smallest. When the connecting pipe 1 and the air supply pipe 7 need to be connected to each other, the air supply pipe 7 can be inserted into the connecting pipe 1 and the guide rod 701 can be made to enter the guide groove 101. Under the action of the guide rod 701 and the guide groove 101, the air supply pipe 7 can slide along the length direction of the connecting pipe 1 without rotating. The air supply pipe 7 can also drive the support plate 8 to move. At this time, the second limiting ring 602 is located at the same axial position as the limiting hole 801. When the support plate 8 moves to the position where it fits with the second limiting ring 602, the second limiting ring 602 will enter the limiting hole 801, and when the second limiting ring 602 passes through the limiting hole 801, the first limiting ring 601 moves to the position abutting against the support plate 8. At this time, the support plate 8 continues to move and drives the sliding block 5 to move through the first limiting ring 601 and the support column 6, thereby driving the limiting plate 4 to move synchronously.

[0034] Preferably, with the movement of the limit plate 4, the sliding block 5 will move along the length direction of the slide groove 401 and move in the direction away from each other, so as to drive the support column 6 to disengage from the limit hole 801 and enter the vertical groove 802. Under the action of the support column 6 and the vertical groove 802, it is ensured that the limit plate 4 will not rotate. When the support column 6 moves to the position where the vertical groove 802 and the annular groove 803 are connected, the support plate 8 and the air supply pipe 7 just move to a position that is tightly fitted with the sealing ring 301. Under the action of the sealing ring 301, the air supply pipe 7 is sealed. At the same time, the limit plate 4 rotates to control the support column 6 to enter the annular groove 803. Under the action of the first limit ring 601 and the second limit ring 602, the position of the support plate 8 is locked, so as to achieve the connection between the connecting pipe 1 and the air supply pipe 7 while sealing the air supply pipe 7.

[0035] See also Figure 1 , Figure 2 , Figure 5-Figure 7The follower assembly is arranged on the support plate 2 and connected to the sealing connection mechanism. The follower assembly includes a rotating ring 14 rotatably mounted on the support plate 2 and sleeved on the connecting pipe 1. The rotating ring 14 is hinged with a connecting rod 15 hinged to the sliding block 5.

[0036] It should be noted that, in the initial state, the limit plate 4 is located at the end of the stroke away from the support plate 2. Under the action of the connecting rod 15, the sliding block 5 is located at the end of the stroke on one side of the slide groove 401, and the spacing between the multiple sliding blocks 5 is the smallest. When the support plate 8 moves to the position abutting against the first limit ring 601, the limit plate 4 is driven to move toward the support plate 2, thereby driving the sliding block 5 to move. Under the action of the connecting rod 15, the sliding block 5 moves along the length direction of the slide groove 401 and moves in a direction away from each other, thereby driving the support column 6 to slide along the vertical groove 802, ensuring that the limit plate 4 will not Rotation occurs. When the support column 6 moves to the connection position of the vertical groove 802 and the annular groove 803, the support plate 8 just moves to a position that is tightly fitted with the sealing ring 301. At this time, the limit plate 4 rotates, so that the support column 6 enters the annular groove 803. If the support plate 8 is subjected to a force moving in a direction away from the limit plate 4, since the support column 6 is located in the annular groove 803, the sliding block 5 cannot slide in the sliding groove 401. Under the action of the connecting rod 15, the position of the limit plate 4 is restricted, thereby ensuring that the position of the support plate 8 does not change, so as to achieve locking of the position of the support plate 8 when the support plate 8 is in fit with the sealing ring 301.

[0037] See also Figure 1 , Figure 2 , Figure 5-Figure 7 , Fig. 9 , the support plate 2 is also provided with a trigger rotating mechanism connected with the follower assembly and the sealing connection mechanism, and the sealing connection mechanism can drive the follower assembly and the trigger rotating mechanism to move when the air supply pipe 7 is inserted into the connecting pipe 1, so as to perform a locking action on the air supply pipe 7, and the trigger rotating mechanism includes a spiral groove 302 opened on the outer wall of the circumference of the rotating sleeve 3, and the support plate 2 is provided with a guide column 9, and a movable ring 10 slidably connected with the rotating sleeve 3 is slidably mounted on the guide column 9, and a limit block 11 slidably engaged with the spiral groove 302 is provided on the inner wall of the movable ring 10, and an elastic component connected with the movable ring 10 is provided on the rotating sleeve 3, wherein the elastic component includes a first spring 12 and a second spring 13 sleeved on the rotating sleeve 3, and the two ends of the first spring 12 are respectively abutted against the movable ring 10 and the limit plate 4, and the two ends of the second spring 13 are respectively abutted against the movable ring 10 and the support plate 2.

[0038] Further, in the initial state, the first spring 12 and the second spring 13 are both in a compressed state, and the elastic potential energy of the second spring 13 is slightly greater than the elastic potential energy of the first spring 12. Under the action of the first spring 12 and the second spring 13, the movable ring 10 and the limit plate 4 are both located at the end of the stroke away from the support plate 2, so that the limit block 11 is located at the end of the stroke of the spiral groove 302 away from the support plate 2. When the support plate 8 abuts against the first limit ring 601 and the second limit ring 602, the limit plate 4 is driven to move synchronously with the support plate 8. Under the action of 15, the sliding block 5 moves along the length direction of the slide groove 401 and moves in the direction away from each other, so that the support column 6 is separated from the limiting hole 801 and enters the vertical groove 802. In this process, the first spring 12 is compressed, and the elastic potential energy of the second spring 13 is still greater than the first spring 12. Therefore, the position of the movable ring 10 will not change. When the support column 6 slides in the vertical groove 802, the limiting plate 4 will not rotate. Therefore, the rotating sleeve 3 will not rotate either. As the limiting plate 4 continues to move, the first spring 12 The elastic potential energy will gradually exceed the elastic potential energy of the second spring 13, so that the movable ring 10 has a tendency to move toward the support plate 2. Under the action of the guide column 9, the movable ring 10 will not rotate. Therefore, the position of the limit block 11 in the spiral groove 302 will not change. At this time, the rotating sleeve 3 also has a tendency to rotate. When the support column 6 moves to the position where the vertical groove 802 and the annular groove 803 are connected, the first spring 12 is elastically released and drives the movable ring 10 to move toward the support plate 2, thereby compressing the second spring 13 to bring The movable limit block 11 slides along the spiral groove 302, causing the rotating sleeve 3 to rotate, and the rotating sleeve 3 will drive the limit plate 4 to rotate, so that the support column 6 enters the annular groove 803. When the support column 6 moves to the end of the stroke on the side of the annular groove 803 away from the vertical groove 802, the limit plate 4 and the support plate 8 no longer move. At this time, the elastic potential energy of the first spring 12 is still greater than the elastic potential energy of the second spring 13, ensuring that the support column 6 will not leave the annular groove 803. Under the action of the first limit ring 601 and the second limit ring 602, the position of the support plate 8 is locked.

[0039] See also Figure 1 , Figure 2 , Figure 5 , Figure 6 , Fig. 9, a one-way locking assembly is arranged on the connecting pipe 1 and connected to the follower assembly. The one-way locking assembly can be activated when the follower assembly moves to guide the follower assembly to move in a single direction. The one-way locking assembly includes a follower tooth 1401 installed at the end of the rotating ring 14, and a limiting tooth 16 cooperating with the following tooth 1401 is slidably installed on the connecting pipe 1. A fixing ring 18 is arranged on the connecting pipe 1, and a third spring 17 is sleeved on the connecting pipe 1. The two ends of the third spring 17 are respectively abutted against the fixing ring 18 and the limiting tooth 16.

[0040] Furthermore, the follower latch 1401 and the limit latch 16 are arranged in a vertical triangle shape. Under the action of the limit latch 16 and the follower latch 1401, the rotating sleeve 3 can only rotate in the direction in which the inclined surfaces of the limit latch 16 and the follower latch 1401 are in contact with each other. In the initial state, the third spring 17 is in a slightly compressed state. Under the action of the third spring 17, the limit latch 16 is located at the end of the stroke away from the fixed ring 18, so that the limit latch 16 and the follower latch 1401 are engaged with each other. When the support column 6 moves to the connection position of the vertical groove 802 and the annular groove 803, the elastic potential energy of the first spring 12 is greater than the elastic potential energy of the second spring 13, and the first spring 12 provides the movable ring 10 with The driving force is greater than the locking force provided by the third spring 17 to the limit latch 16 and the follower latch 1401. Therefore, the movable ring 10 will move toward the support plate 2 and control the rotation of the rotating sleeve 3 through the limit block 11 and the spiral groove 302 to drive the follower latch 1401 to rotate. At this time, the limit latch 16 will perform a giving way action and move toward the fixed ring 18 to compress the third spring 17. When the support column 6 moves to the end of the stroke where the annular groove 803 is away from the vertical groove 802, the rotating sleeve 3 no longer moves. The third spring 17 controls the limit latch 16 to move again to the engagement position with the follower latch 1401 to ensure that the rotating sleeve 3 will not reverse, so as to ensure that the position of the support plate 8 will not change.

[0041] Preferably, if it is necessary to disassemble the air supply pipe 7, at this time, the limit tooth 16 can be controlled to move in the direction away from the follower tooth 1401, so that the rotating sleeve 3 can rotate freely. At the same time, the rotating sleeve 3 is manually controlled to reverse and drive the limit plate 4 to rotate to control the support column 6 to slide along the annular groove 803 and move toward the vertical groove 802. When the support column 6 moves to the position where the annular groove 803 is connected with the vertical groove 802, the first spring 12 and the second spring 13 are elastically released and push the limit plate 4 to move toward the initial position to drive the support plate 8 to move. At the same time, under the action of the connecting rod 15, the sliding block 5 moves toward the initial position to control the support column 6 to move toward the limit hole 801. When the limit plate 4 is reset, the support column 6 moves into the limit hole 801 again, so that the second limit ring 602 cooperates with the limit hole 801 again. At this time, the support plate 8 can be taken out.

[0042] See also Figure 1-Figure 4 , a detachable large-displacement vehicle muffler exhaust assembly, comprising: A muffler housing 19, wherein the muffler housing 19 is connected to the air supply pipe 7, and an exhaust pipe 20 is connected to the muffler housing 19; The muffler housing 19 is provided with a first partition plate 21 and a second partition plate 22 . The first partition plate 21 and the second partition plate 22 are respectively provided with muffler holes 2101 . The first partition plate 21 is provided with a muffler pipe 25 penetrating through the second partition plate 22 .

[0043] Preferably, the first partition 21 and the second partition 22 divide the muffler shell 19 into a plurality of expansion chambers 23, and a patch-type resistive plate 24 is installed in the expansion chamber 23. When the air supply pipe 7 is connected to the connecting pipe 1, the gas will enter the muffler shell 19 through the air supply pipe 7. Under the action of the first partition 21 and the second partition 22, the low-frequency noise is reduced. At the same time, under the action of the silencer hole 2101, the noise is further reduced. When the gas enters the expansion chamber 23, the sound waves will contact the patch-type resistive plate 24. Under the action of the patch-type resistive plate 24, the sound waves are absorbed. The gas will also be transported again through the silencer pipe 25, and the generated sound waves will collide with each other and cancel each other out, thereby achieving the effect of noise reduction again. The gas after noise reduction can be discharged through the exhaust pipe 20.

[0044] A method for assembling a detachable large-displacement vehicle muffler exhaust assembly comprises the following steps: Step 1: Insert the air supply pipe 7 onto the connecting pipe 1, and make the guide rod 701 slide and fit into the guide groove 101; Step 2: The air supply pipe 7 also drives the sealing connection mechanism to move, thereby driving the follower component and the triggering rotation mechanism to move; Step three: When the air supply pipe 7 moves to the specified position, under the action of the triggering rotation mechanism and the one-way locking assembly, a double locking force is provided through the sealing connection mechanism to fix the air supply pipe 7 on the connecting pipe 1 and seal the air supply pipe 7.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stable sealing connection structure, comprising: A connecting pipe (1), wherein a guide groove (101) is provided at an end of the connecting pipe (1), an air supply pipe (7) is sleeved on the connecting pipe (1), a guide rod (701) slidably engaged with the guide groove (101) is provided on the inner wall of the air supply pipe (7), and a support plate (2) is provided on the connecting pipe (1); It is characterized by further comprising: A sealing connection mechanism, arranged on the support plate (2) and connected to the air supply pipe (7); A follower assembly is arranged on the support plate (2) and connected to the sealing connection mechanism. The support plate (2) is also provided with a triggering rotation mechanism connected to the follower assembly and the sealing connection mechanism. When the air supply pipe (7) is inserted into the connecting pipe (1), the sealing connection mechanism can drive the follower assembly and the triggering rotation mechanism to move, so as to perform a locking action on the air supply pipe (7); A one-way locking component is arranged on the connecting pipe (1) and connected to the follower component. The one-way locking component can be activated when the follower component moves to guide the follower component to move in a single direction.

2. A stable sealing connection structure according to claim 1, characterized in that: The sealing connection mechanism comprises a rotating sleeve (3) rotatably mounted on the support plate (2) and sleeved on the connecting pipe (1), a sealing ring (301) being provided at the end of the rotating sleeve (3), a limiting plate (4) being provided on the rotating sleeve (3), a plurality of sliding grooves (401) being equidistantly distributed around a circumference being formed on the limiting plate (4), and a sliding assembly being provided in the sliding groove (401).

3. A stable sealing connection structure according to claim 2, characterized in that: The sliding assembly comprises a sliding block (5) slidably mounted in the sliding groove (401); a support column (6) is provided on the side wall of the sliding block (5); a first limiting ring (601) and a second limiting ring (602) are provided on the support column (6); and a limiting structure connected to the support column (6) is provided on the air supply pipe (7).

4. A stable sealing connection structure according to claim 3, characterized in that: The limiting structure comprises a support plate (8) mounted on the air supply pipe (7) and abutting against the sealing ring (301); the support plate (8) abuts against the first limiting ring (601) and the second limiting ring (602); a guide groove is provided on the support plate (8), and the guide groove is slidably engaged with the support column (6).

5. A stable sealing connection structure according to claim 3, characterized in that: The follower assembly comprises a rotating ring (14) rotatably mounted on the support plate (2) and sleeved on the connecting pipe (1), and a connecting rod (15) hingedly connected to the sliding block (5) is hingedly connected to the rotating ring (14).

6. A stable sealing connection structure according to claim 2, characterized in that: The trigger rotation mechanism comprises a spiral groove (302) formed on the circumferential outer wall of the rotating sleeve (3); a guide column (9) is provided on the support plate (2); a movable ring (10) slidably mounted on the guide column (9) and slidably connected to the rotating sleeve (3); a limit block (11) slidably engaged with the spiral groove (302) is provided on the inner wall of the movable ring (10); and an elastic component connected to the movable ring (10) is provided on the rotating sleeve (3).

7. A stable sealing connection structure according to claim 6, characterized in that: The elastic component comprises a first spring (12) and a second spring (13) which are sleeved on the rotating sleeve (3); two ends of the first spring (12) respectively abut against the movable ring (10) and the limiting plate (4); and two ends of the second spring (13) respectively abut against the movable ring (10) and the supporting plate (2).

8. A stable sealing connection structure according to claim 5, characterized in that: The one-way locking assembly comprises a follower latch (1401) mounted on the end of the rotating ring (14); a limit latch (16) cooperating with the follower latch (1401) is slidably mounted on the connecting tube (1); a fixing ring (18) is arranged on the connecting tube (1); a third spring (17) is sleeved on the connecting tube (1); two ends of the third spring (17) are respectively in contact with the fixing ring (18) and the limit latch (16).

9. A detachable muffler exhaust assembly for a large-displacement vehicle, comprising a stable sealing connection structure as claimed in any one of claims 1 to 8, characterized in that: include: a muffler shell (19), the muffler shell (19) being connected to the air supply pipe (7), and the muffler shell (19) being connected to an exhaust pipe (20); A first partition plate (21) and a second partition plate (22) are arranged in the muffler housing (19); muffler holes (2101) are respectively provided on the first partition plate (21) and the second partition plate (22); and a muffler pipe (25) is provided on the first partition plate (21) and passes through the second partition plate (22).

10. A method for assembling a detachable large-displacement vehicle muffler exhaust assembly, using the detachable large-displacement vehicle muffler exhaust assembly as claimed in claim 9, characterized in that: The following steps are involved: Step 1: insert the air supply pipe (7) onto the connecting pipe (1), and slide the guide rod (701) into the guide groove (101); Step 2: The air supply pipe (7) also drives the sealing connection mechanism to move, thereby driving the follower component and the triggering rotation mechanism to move; Step 3: When the air supply pipe (7) moves to the specified position, under the action of the triggering rotation mechanism and the one-way locking assembly, a double locking force is provided through the sealing connection mechanism to fix the air supply pipe (7) on the connecting pipe (1) and seal the air supply pipe (7).

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