A stable sealing connection structure, a detachable large-capacity vehicle muffling exhaust assembly and an assembling method thereof

Abstract

The application relates to the field of vehicle muffling technology, in particular to a stable sealing connection structure, a detachable large-displacement vehicle muffling exhaust assembly and an assembling method thereof, which comprise: a communication pipe, the end of the communication pipe is provided with a guide groove, a gas feeding pipe is sleeved on the communication pipe, a guide rod is arranged on the inner wall of the gas feeding pipe and is slidably matched with the guide groove, and a supporting plate is arranged on the communication pipe; a sealing connection mechanism is arranged on the supporting plate and is connected with the gas feeding pipe; a following assembly is arranged on the supporting plate and is connected with the sealing connection mechanism; a trigger rotating mechanism connected with the following assembly and the sealing connection mechanism is further arranged on the supporting plate; when the gas feeding pipe is sleeved into the communication pipe, the sealing connection mechanism can drive the following assembly and the trigger rotating mechanism to move so as to perform a locking action on the gas feeding pipe; and a one-way locking assembly is arranged on the communication pipe and is connected with the following assembly, and when the gas feeding pipe is sleeved into the communication pipe, the two can be automatically connected and sealed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle muffling, in particular to a stable sealing connection structure, a detachable large-displacement vehicle muffling exhaust assembly and an assembling method thereof. BACKGROUND

[0002] With the improvement of consumer purchasing power and the change of consumer concept, the market of large and medium displacement motorcycles shows great development potential. The future development trend of large and medium displacement motorcycles is generally getting better, and the market demand and sales continue to grow.

[0003] The motorcycle muffler, as one of the important parts of the motorcycle, plays a role in purifying the exhaust gas of the motorcycle and reducing noise. The quality of the sound wave directly determines the height of the sound quality of the motorcycle, and 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 by bolts and other parts, which requires the assistance of tools during installation and disassembly, and the process is relatively complex. In addition, if the operation is not correct during installation, the intake pipe and the exhaust pipe may not be tightly connected, resulting in gas leakage. SUMMARY

[0005] The purpose of the present application is to provide a stable sealing connection structure, a detachable large-displacement vehicle muffling exhaust assembly and an assembling method thereof to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A stable sealing connection structure, comprising:

[0008] A communication pipe, the end of the communication pipe is provided with a guide slot, a gas delivery pipe is sleeved on the communication pipe, a guide rod is arranged on the inner wall of the gas delivery pipe and slidably fitted in the guide slot, and a support plate is arranged on the communication pipe;

[0009] Further comprising:

[0010] A sealing connection mechanism is arranged on the support plate and connected with the gas delivery pipe;

[0011] A follow-up assembly is arranged on the support plate and connected with the sealing connection mechanism, and a trigger rotating mechanism is further arranged on the support plate and connected with the follow-up assembly and the sealing connection mechanism. When the gas delivery pipe is sleeved in the communication pipe, the sealing connection mechanism can drive the follow-up assembly and the trigger rotating mechanism to move, so as to perform a locking action on the gas delivery pipe;

[0012] A one-way locking assembly is arranged on the communication pipe and connected with the follower assembly, and the one-way locking assembly can be actuated when the follower assembly moves to guide the follower assembly to move in a single direction.

[0013] As a further scheme of the present application, the sealing connection mechanism comprises a rotating sleeve rotatably arranged on the support plate and sleeved on the communication pipe, the rotating sleeve is provided with a sealing ring at an end thereof, a limiting disc is arranged on the rotating sleeve, a plurality of slide grooves are arranged on the limiting disc in a circumferentially equidistant manner, and a sliding assembly is arranged in the slide grooves.

[0014] As a further scheme of the present application, the sliding assembly comprises a sliding block slidably arranged in the slide groove, a support column is arranged on the side wall of the sliding block, a first limiting ring and a second limiting ring are arranged on the support column, and a limiting structure connected with the support column is arranged on the air supply pipe.

[0015] As a further scheme of the present application, the limiting structure comprises a support disc arranged on the air supply pipe and abutting against the sealing ring, the support disc is in abutting fit with the first limiting ring and the second limiting ring, a guide groove is arranged on the support disc, and the guide groove is in sliding fit with the support column.

[0016] As a further scheme of the present application, the follower assembly comprises a rotating ring rotatably arranged on the support plate and sleeved on the communication pipe, and a connecting rod hinged to the sliding block is hinged to the rotating ring.

[0017] As a further scheme of the present application, the trigger rotating mechanism comprises a spiral groove arranged on the circumferential outer wall of the rotating sleeve, a guide column is arranged on the support plate, a movable ring in sliding connection with the rotating sleeve is slidably arranged on the guide column, a limiting block in sliding fit with the spiral groove is arranged on the inner wall of the movable ring, and an elastic assembly connected with the movable ring is arranged on the rotating sleeve.

[0018] As a further scheme of the present application, the elastic assembly comprises a first spring and a second spring sleeved on the rotating sleeve, the two ends of the first spring are respectively in abutment with the movable ring and the limiting disc, and the two ends of the second spring are respectively in abutment with the movable ring and the support plate.

[0019] As a further scheme of the present application, the one-way locking assembly comprises a follower tooth arranged at an end of the rotating ring, a limiting tooth in fit with the follower tooth is slidably arranged on the communication pipe, a fixing ring is arranged on the communication pipe, a third spring is sleeved on the communication pipe, and the two ends of the third spring are respectively in abutment with the fixing ring and the limiting tooth.

[0020] A detachable large-displacement vehicle muffling exhaust assembly comprises:

[0021] A muffler housing is connected with the air supply pipe, and an exhaust pipe is connected with the muffler housing;

[0022] The first and second baffles are provided in the muffler housing, and the first and second baffles are respectively provided with muffling holes, and the first baffle is provided with a muffling pipe penetrating through the second baffle.

[0023] An assembling method of the detachable large-displacement vehicle muffling exhaust assembly comprises the following steps:

[0024] Step one: the air supply pipe is sleeved on the communication pipe, and the guide rod is slidably embedded in the guide slot;

[0025] Step two: the air supply pipe drives the sealing connection mechanism to move, so as to drive the follow-up assembly and the trigger rotating mechanism to move;

[0026] Step three: when the air supply pipe moves to the specified position, the sealing connection mechanism provides double locking force under the action of the trigger rotating mechanism and the one-way locking assembly, so as to fix the air supply pipe on the communication pipe and seal the air supply pipe.

[0027] Compared with the prior art, the application has the beneficial effects that: when the air supply pipe is sleeved in the communication pipe, the position of the air supply pipe is automatically locked and sealed, specifically, when the air supply pipe is sleeved in the communication pipe, the guide rod is slidably embedded in the guide slot, so that the air supply pipe cannot rotate, and the air supply pipe drives the sealing connection mechanism to move, so as to drive the follow-up assembly and the trigger rotating mechanism to move, when the air supply pipe moves to the required position, the position of the air supply pipe is locked by the sealing connection mechanism under the action of the follow-up assembly and the trigger rotating mechanism, and the air supply pipe is sealed, and under the action of the one-way locking assembly, the air supply pipe is further locked.

[0028] If the support disc is subjected to a force moving away from the limiting disc, since the support column is located in the annular groove, the sliding block cannot slide in the sliding groove, and under the action of the connecting rod, the position of the limiting disc is limited, so that the position of the support disc cannot be changed, so that the position of the support disc is locked when the support disc is attached to the sealing ring.

[0029] If it is necessary to disassemble the air supply pipe, at this time, the limiting clamping tooth can be controlled to move away from the follow-up clamping tooth, so that the rotating sleeve can be freely rotated, and at the same time, the rotating sleeve is manually controlled to reverse, and the limiting disc is rotated, so that the air supply pipe is separated from the communication pipe through the follow-up assembly and the sealing connection mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly.

[0031] Figure 2 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle.

[0032] Figure 3 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle.

[0033] Figure 4 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle.

[0034] Figure 5 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle.

[0035] Figure 6 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle. Figure 5 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle.

[0036] Figure 7 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle.

[0037] Figure 8 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle.

[0038] Figure 9 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle.

[0039] Figure 10 Structure diagram of one embodiment of detachable large displacement vehicle muffler exhaust assembly from another angle.

[0040] In the figure: 1, the communication pipe; 101, the guide groove; 2, the support plate; 3, the rotating sleeve; 301, the sealing ring; 302, the spiral groove; 4, the limiting disc; 401, the sliding groove; 5, the sliding block; 6, the support column; 601, the first limiting ring; 602, the second limiting ring; 7, the gas supply pipe; 701, the guide rod; 8, the support disc; 801, the limiting hole; 802, the vertical groove; 803, the annular groove; 9, the guide column; 10, the movable ring; 11, the limiting block; 12, the first spring; 13, the second spring; 14, the rotating ring; 1401, the follow-up clamping tooth; 15, the connecting rod; 16, the limiting clamping tooth; 17, the third spring; 18, the fixed ring; 19, the muffler shell; 20, the exhaust pipe; 21, the first baffle; 2101, the muffling hole; 22, the second baffle; 23, the expansion cavity; 24, the patch resistive plate; 25, the muffler pipe. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0042] In addition, the elements in the present application are referred to as "fixed to" or "provided on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0043] Please refer to Figures 1-10 In the embodiments of the present application, a stable sealing connection structure comprises:

[0044] The communication pipe 1 is provided with a guide groove 101 at the end, a gas supply pipe 7 is sleeved on the communication pipe 1, a guide rod 701 is arranged on the inner wall of the gas supply pipe 7 and slidably fitted with the guide groove 101, and a support plate 2 is arranged on the communication pipe 1.

[0045] Further comprising:

[0046] Please refer to Figure 1 , Figure 2 , Figures 5-10, the sealing connection mechanism is provided on the support plate 2 and connected with the air pipe 7, the sealing connection mechanism comprises a rotating sleeve 3 rotatably installed on the support plate 2 and sleeved on the communication pipe 1, the rotating sleeve 3 is provided with a sealing ring 301 at the end, the rotating sleeve 3 is provided with a limiting disc 4, the limiting disc 4 is provided with a plurality of slide grooves 401 distributed at equal intervals in the circumference, and the slide grooves 401 are provided with a sliding assembly, wherein the sliding assembly comprises a sliding block 5 slidably installed in the slide groove 401, the side wall of the sliding block 5 is provided with a supporting column 6, the supporting column 6 is provided with a first limiting ring 601 and a second limiting ring 602, the air pipe 7 is provided with a limiting structure connected with the supporting column 6, and the above-mentioned limiting structure comprises a supporting disc 8 installed on the air pipe 7 and abutting with the sealing ring 301, the supporting disc 8 is in abutting fit with the first limiting ring 601 and the second limiting ring 602, and the supporting disc 8 is provided with a guide groove, and the guide groove is slidably embedded with the supporting column 6.

[0047] In detail, the guide groove is circumferentially distributed with four groups, each group of guide grooves comprises a limiting hole 801, a vertical groove 802 and an annular groove 803, the two ends of the vertical groove 802 are connected with the limiting hole 801 and the annular groove 803 respectively, the size of the limiting hole 801 is equivalent to that of the second limiting ring 602 and smaller than that of the first limiting ring 601, the sizes of the first limiting ring 601 and the second limiting ring 602 are both larger than those of the vertical groove 802 and the annular groove 803, the spacing between the first limiting ring 601 and the second limiting ring 602 is the same as the thickness of the supporting disc 8, and the circumferential diameter of the supporting column 6 is equivalent to the size of the vertical groove 802 and the annular groove 803, in the initial state, the limiting disc 4 is not subjected to external force, at this time, the limiting disc 4 is located at the end of stroke away from the support plate 2, and the sliding block 5 is located at the end of stroke in the slide groove 401, so that the spacing between the plurality of sliding blocks 5 is minimum, when it is needed to connect the communication pipe 1 and the air pipe 7 with each other, at this time, the air pipe 7 can be sleeved into the communication pipe 1, and the guide rod 701 is made to enter the guide groove 101, under the action of the guide rod 701 and the guide groove 101, it is ensured that the air pipe 7 slides along the length direction of the communication pipe 1 and does not rotate, and the air pipe 7 also drives the supporting disc 8 to move, at this time, the second limiting ring 602 is located at the same axis position as the limiting hole 801, when the supporting disc 8 moves to the abutting position with the second limiting ring 602, the second limiting ring 602 will enter the limiting hole 801, and when the second limiting ring 602 penetrates through the limiting hole 801, the first limiting ring 601 moves to the abutting position with the supporting disc 8, at this time, the supporting disc 8 continues to move and drives the sliding block 5 to move through the first limiting ring 601 and the supporting column 6, so as to drive the limiting disc 4 to move synchronously.

[0048] Preferably, with the movement of the limiting disc 4, the sliding blocks 5 will move along the length direction of the sliding groove 401 and move towards the direction away from each other, so as to drive the supporting columns 6 to be separated from the limiting holes 801 and enter into the vertical grooves 802, under the action of the supporting columns 6 and the vertical grooves 802, it is ensured that the limiting disc 4 will not rotate, when the supporting columns 6 move to the position where the vertical grooves 802 are connected with the annular grooves 803, the supporting disc 8 and the air feeding pipe 7 just move to the position where they are closely combined with the sealing ring 301, under the action of the sealing ring 301, the air feeding pipe 7 is sealed, at the same time, the limiting disc 4 rotates, so as to control the supporting columns 6 to enter into the annular grooves 803, under the action of the first limiting ring 601 and the second limiting ring 602, the position of the supporting disc 8 is locked, so as to realize the connection of the connecting communication pipe 1 and the air feeding pipe 7 and the sealing of the air feeding pipe 7.

[0049] Please refer to Figure 1 , Figure 2 , Figures 5-7 The following components are provided: a supporting plate 2, a limiting disc 4, a sliding block 5, a supporting disc 8, a supporting column 6, a vertical groove 802, an annular groove 803, a first limiting ring 601, a second limiting ring 602, a sealing ring 301, a sliding groove 401, a connecting communication pipe 1 and an air feeding pipe 7.

[0050] It should be noted that, in the initial state, the limiting disc 4 is located at the end of the stroke away from the supporting plate 2, under the action of the connecting rod 15, the sliding blocks 5 are located at the end of the stroke on one side of the sliding groove 401, and the spacing between the sliding blocks 5 is the smallest, when the supporting disc 8 moves to the position where it abuts against the first limiting ring 601, the limiting disc 4 is driven to move towards the supporting plate 2, so as to drive the sliding blocks 5 to move, under the action of the connecting rod 15, the sliding blocks 5 move along the length direction of the sliding groove 401 and move towards the direction away from each other, so as to drive the supporting columns 6 to slide along the vertical grooves 802, it is ensured that the limiting disc 4 will not rotate in the process, when the supporting columns 6 move to the position where the vertical grooves 802 are connected with the annular grooves 803, the supporting disc 8 just moves to the position where it is closely combined with the sealing ring 301, at this time, the limiting disc 4 rotates, so as to drive the supporting columns 6 to enter into the annular grooves 803, if the supporting disc 8 is subjected to a force moving away from the limiting disc 4, since the supporting columns 6 are located in the annular grooves 803, the sliding blocks 5 cannot slide in the sliding groove 401, under the action of the connecting rod 15, the position of the limiting disc 4 is limited, so as to ensure that the position of the supporting disc 8 will not change, so as to lock the position of the supporting disc 8 when it is combined with the sealing ring 301.

[0051] Please refer to Figure 1 , Figure 2 , Figures 5-7 , Figure 9The support plate 2 is further provided with a trigger rotating mechanism connected with the follow-up assembly and the sealing connecting mechanism. When the air pipe 7 is sleeved into the communicating pipe 1, the sealing connecting mechanism can drive the follow-up assembly and the trigger rotating mechanism to move, so as to perform a locking action on the air pipe 7. The trigger rotating mechanism comprises a spiral groove 302 formed in the circumferential outer wall of the rotating sleeve 3. The support plate 2 is provided with a guide column 9. The guide column 9 is slidably provided with a movable ring 10 connected with the rotating sleeve 3. The inner wall of the movable ring 10 is provided with a limiting block 11 slidably fitted with the spiral groove 302. The rotating sleeve 3 is provided with an elastic assembly connected with the movable ring 10. The elastic assembly comprises a first spring 12 and a second spring 13 sleeved on the rotating sleeve 3. The two ends of the first spring 12 are respectively abutted with the movable ring 10 and the limiting disc 4. The two ends of the second spring 13 are respectively abutted with the movable ring 10 and the support plate 2.

[0052] Further, in the initial state, the first spring 12 and the second spring 13 are both in the compressed state, and the elastic potential energy of the second spring 13 is slightly greater than that of the first spring 12, under the action of the first spring 12 and the second spring 13, the movable ring 10 and the limiting disc 4 are both located at the stroke end away from the support plate 2, so that the limiting block 11 is located at the stroke end away from the support plate 2 on the side of the spiral groove 302, when the support disc 8 abuts against the first limiting ring 601 and the second limiting ring 602, the limiting disc 4 is driven to move synchronously with the support disc 8, under the action of the connecting rod 15, the sliding block 5 moves along the length direction of the sliding groove 401 and moves towards 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 that of 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 disc 4 will not rotate, therefore, the rotating sleeve 3 will also not rotate, with the continuous movement of the limiting disc 4, the elastic potential energy of the first spring 12 will gradually exceed that of the second spring 13, so that the movable ring 10 has a tendency to move towards the support plate 2, under the action of the guide column 9, the movable ring 10 will not rotate, therefore, the position of the limiting 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 is connected with the annular groove 803, the first spring 12 is elastically released and drives the movable ring 10 to move towards the support plate 2, thereby compressing the second spring 13, to drive the limiting block 11 to slide along the spiral groove 302, so that the rotating sleeve 3 rotates, the rotating sleeve 3 will drive the limiting disc 4 to rotate, so that the support column 6 enters the annular groove 803, when the support column 6 moves to the stroke end away from the vertical groove 802 on the side of the annular groove 803, the limiting disc 4 and the support disc 8 no longer move, at this time, the elastic potential energy of the first spring 12 is still greater than that of the second spring 13, to ensure that the support column 6 will not be separated from the annular groove 803, under the action of the first limiting ring 601 and the second limiting ring 602, the position of the support disc 8 is locked.

[0053] Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 9The one-way locking assembly is arranged on the communicating pipe 1 and connected with the follow-up assembly, and can act when the follow-up assembly moves to guide the follow-up assembly to move in a single direction. The one-way locking assembly comprises a follow-up tooth 1401 arranged at the end of the rotating ring 14. The communicating pipe 1 is slidably arranged with a limiting tooth 16 matched with the follow-up tooth 1401. The communicating pipe 1 is arranged with a fixing ring 18. The communicating pipe 1 is sleeved with a third spring 17, and the two ends of the third spring 17 are respectively abutted with the fixing ring 18 and the limiting tooth 16.

[0054] Further, the follow-up tooth 1401 and the limiting tooth 16 are arranged in a vertical triangle shape. Under the action of the limiting tooth 16 and the follow-up tooth 1401, the rotating sleeve 3 can only rotate in the direction that the inclined surfaces of the limiting tooth 16 and the follow-up tooth 1401 are mutually adhered. In the initial state, the third spring 17 is in a slight compression state. Under the action of the third spring 17, the limiting tooth 16 is located at the end of the stroke away from the fixing ring 18, so that the limiting tooth 16 and the follow-up tooth 1401 are mutually engaged. When the support column 6 moves to the connecting position of the vertical groove 802 and the annular groove 803, the elastic potential energy of the first spring 12 is greater than that of the second spring 13, and the pushing force provided by the first spring 12 to the movable ring 10 is greater than the locking force provided by the third spring 17 to the limiting tooth 16 and the follow-up tooth 1401. Therefore, the movable ring 10 will move towards the support plate 2, and the rotating sleeve 3 is controlled to rotate by the limiting block 11 and the spiral groove 302, so as to drive the follow-up tooth 1401 to rotate. At this time, the limiting tooth 16 will perform a yielding action and move towards the fixing ring 18 to compress the third spring 17. When the support column 6 moves to the end of the stroke away from the vertical groove 802 on the side of the annular groove 803, the rotating sleeve 3 no longer moves, and the third spring 17 controls the limiting tooth 16 to move to the position of engaging with the follow-up tooth 1401 again, so as to ensure that the rotating sleeve 3 will not be reversed, and the position of the support disc 8 will not be changed.

[0055] Preferably, if the air pipe 7 needs to be disassembled, at this time, the limiting catch 16 can be controlled to move away from the follow-up catch 1401, so that the rotating sleeve 3 can be freely rotated, at the same time, the rotating sleeve 3 is manually controlled to reverse, and the limiting disc 4 is rotated to control the support column 6 to slide along the annular groove 803 and move towards the vertical groove 802, when the support column 6 moves to the position where the annular groove 803 and the vertical groove 802 are connected, the first spring 12 and the second spring 13 are elastically released, and the limiting disc 4 is pushed to move towards the initial position, so as to drive the support disc 8 to move, and under the action of the connecting rod 15, the sliding block 5 moves towards the initial position, so as to control the support column 6 to move towards the limiting hole 801, when the limiting disc 4 is reset, the support column 6 moves into the limiting hole 801 again, so that the second limiting ring 602 cooperates with the limiting hole 801 again, at this time, the support disc 8 can be taken out.

[0056] Please refer to Figures 1-4 A detachable large-displacement vehicle muffling exhaust assembly, comprising:

[0057] A muffler shell 19 connected with the air pipe 7, and an exhaust pipe 20 connected with the muffler shell 19;

[0058] The muffler shell 19 is provided with a first partition plate 21 and a second partition plate 22, and the first partition plate 21 and the second partition plate 22 are respectively provided with a muffling hole 2101, and the first partition plate 21 is provided with a muffling pipe 25 penetrating through the second partition plate 22.

[0059] Preferably, the first partition plate 21 and the second partition plate 22 divide the muffler shell 19 into a plurality of expansion cavities 23, and a patch-type resistive plate 24 is installed in each expansion cavity 23, when the air pipe 7 is connected with the communication pipe 1, the gas enters the muffler shell 19 through the air pipe 7, and under the action of the first partition plate 21 and the second partition plate 22, the low-frequency noise is reduced, and under the action of the muffling hole 2101, the noise is further reduced, when the gas enters the expansion cavity 23, the sound wave contacts the patch-type resistive plate 24, and under the action of the patch-type resistive plate 24, the sound wave is absorbed, and the gas is transported again through the muffling pipe 25, the generated sound waves collide with each other and cancel out, thereby reducing noise again, and the noise-reduced gas can be discharged through the exhaust pipe 20.

[0060] An assembly method of a detachable large-displacement vehicle muffling exhaust assembly, comprising the following steps:

[0061] Step one: the air pipe 7 is sleeved on the communication pipe 1, and the guide rod 701 is slidably embedded in the guide groove 101;

[0062] Step two: the air pipe 7 also drives the sealing connection mechanism to move, so as to drive the follow-up assembly and the trigger rotating mechanism to move;

[0063] Step three: when the air pipe 7 moves to the designated position, the sealing connection mechanism provides double locking force under the action of the trigger rotating mechanism and the one-way locking assembly, so as to fix the air pipe 7 on the communication pipe 1 and seal the air pipe 7.

[0064] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0065] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A stable sealing connection structure, comprising: a communication pipe (1) having a guide slot (101) at an end thereof, a gas delivery pipe (7) being sleeved on the communication pipe (1), a guide rod (701) being arranged on an inner wall of the gas delivery pipe (7) and being slidably fitted in the guide slot (101), and a support plate (2) being arranged on the communication pipe (1); characterized in that it further comprises: a sealing connection mechanism arranged on the support plate (2) and connected with the gas delivery pipe (7); a follower assembly arranged on the support plate (2) and connected with the sealing connection mechanism, a trigger rotating mechanism being further arranged on the support plate (2) and connected with the follower assembly and the sealing connection mechanism, the sealing connection mechanism being capable of driving the follower assembly and the trigger rotating mechanism to move when the gas delivery pipe (7) is sleeved in the communication pipe (1) so as to perform a locking action on the gas delivery pipe (7); a one-way locking assembly arranged on the communication pipe (1) and connected with the follower assembly, the one-way locking assembly being capable of acting when the follower assembly moves so as to guide the follower assembly to move in a single direction; the sealing connection mechanism comprising a rotating sleeve (3) rotatably arranged on the support plate (2) and sleeved on the communication pipe (1), a sealing ring (301) being arranged at an end of the rotating sleeve (3), a limiting disc (4) being arranged on the rotating sleeve (3), a plurality of slide grooves (401) being arranged on the limiting disc (4) and being circumferentially equidistantly distributed, and a sliding assembly being arranged in the slide grooves (401); the sliding assembly comprising a sliding block (5) slidably arranged in the slide grooves (401), a support column (6) being arranged on a side wall of the sliding block (5), a first limiting ring (601) and a second limiting ring (602) being arranged on the support column (6), and a limiting structure being arranged on the gas delivery pipe (7) and connected with the support column (6); the limiting structure comprising a support disc (8) arranged on the gas delivery pipe (7) and abutting against the sealing ring (301), the support disc (8) being in abutting engagement with the first limiting ring (601) and the second limiting ring (602), a guide slot being arranged on the support disc (8) and slidably fitted in the support column (6), the guide slot being circumferentially equidistantly distributed in four groups, each group of the guide slot comprising a limiting hole (801), a vertical slot (802) and an annular slot (803), the two ends of the vertical slot (802) being connected with the limiting hole (801) and the annular slot (803) respectively, the size of the limiting hole (801) being equivalent to that of the second limiting ring (602) and smaller than that of the first limiting ring (601), the sizes of the first limiting ring (601) and the second limiting ring (602) being larger than those of the vertical slot (802) and the annular slot (803), the spacing between the first limiting ring (601) and the second limiting ring (602) being the same as the thickness of the support disc (8), and the circumferential diameter of the support column (6) being equivalent to the sizes of the vertical slot (802) and the annular slot (803). The follow-up assembly comprises a rotating ring (14) rotatably mounted on the support plate (2) and sleeved on the communicating pipe (1), and a connecting rod (15) hinged to the sliding block (5) is hinged to the rotating ring (14); The trigger rotating mechanism comprises a spiral groove (302) formed in the circumferential outer wall of the rotating sleeve (3), the support plate (2) is provided with a guide column (9), the guide column (9) is slidably provided with a movable ring (10) in sliding connection with the rotating sleeve (3), the inner wall of the movable ring (10) is provided with a limiting block (11) in sliding fit with the spiral groove (302), and the rotating sleeve (3) is provided with an elastic assembly connected with the movable ring (10). The support column (6) can be separated from the limiting hole (801), sequentially enter the vertical groove (802) and the annular groove (803), and the position of the support disc (8) is locked under the action of the first limiting ring (601) and the second limiting ring (602), so that the communicating pipe (1) and the air supply pipe (7) are connected and sealed.

2. The stable sealed connection structure according to claim 1, wherein The elastic assembly comprises a first spring (12) and a second spring (13) sleeved on the rotating sleeve (3), the two ends of the first spring (12) are respectively abutted with the movable ring (10) and the limiting disc (4), and the two ends of the second spring (13) are respectively abutted with the movable ring (10) and the support plate (2).

3. The stable sealed connection structure according to claim 1, wherein The one-way locking assembly comprises a follow-up tooth (1401) mounted on the end of the rotating ring (14), the communicating pipe (1) is slidably provided with a limiting tooth (16) matched with the follow-up tooth (1401), the communicating pipe (1) is provided with a fixed ring (18), the communicating pipe (1) is sleeved with a third spring (17), and the two ends of the third spring (17) are respectively abutted with the fixed ring (18) and the limiting tooth (16).

4. A detachable large displacement vehicle muffler exhaust assembly comprising the stable sealing connection structure as claimed in any one of claims 1 to 3, characterized in that, It comprises: The muffler shell (19) is connected with the air supply pipe (7), and the muffler shell (19) is connected with the exhaust pipe (20); The muffler shell (19) is provided with a first partition (21) and a second partition (22), the first partition (21) and the second partition (22) are respectively provided with a muffling hole (2101), and the first partition (21) is provided with a muffling pipe (25) penetrating through the second partition (22).

5. A method of assembling a detachable large displacement vehicle muffling exhaust assembly using the detachable large displacement vehicle muffling exhaust assembly of claim 4, wherein, The steps are as follows: Step one: the air supply pipe (7) is sleeved on the communicating pipe (1), and the guide rod (701) is slidably fitted with the guide groove (101); Step two: the air supply pipe (7) will also drive the sealing connection mechanism to move, so as to drive the follow-up assembly and the trigger rotating mechanism to move; Step three: when the air supply pipe (7) moves to the specified position, under the action of the trigger rotating mechanism and the one-way locking assembly, the sealing connection mechanism provides double locking force to fix the air supply pipe (7) on the communicating pipe (1) and seal the air supply pipe (7).

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