Exhaust assembly and vehicle

Abstract

The utility model embodiment proposes a kind of exhaust assembly and vehicle, it is related to vehicle manufacturing technical field, comprising: catalytic converter, the inlet end of catalytic converter is communicated with the air outlet of engine, and the outlet end of catalytic converter is formed with first spherical seat;Bellows, the inlet end of bellows is formed with second spherical seat, and the outlet end of bellows is communicated with particle trap;Wherein, first spherical seat and second spherical seat sleeve set connection and form ball hinge cooperation, and make catalytic converter and bellows communicate.The utility model embodiment's exhaust assembly, first spherical seat and second spherical seat ball hinge cooperation, and then make bellows relative catalytic converter can be deflected in many directions, can avoid the connection of bellows to appear cracking etc., guarantee the use reliability of bellows, and can guarantee the air tightness of exhaust assembly, and then can guarantee engine operating stability, and guarantee the power output and control of vehicle to emission, use effect is better, more widely applicable.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to an exhaust assembly and a vehicle having the exhaust assembly. Background Technology

[0002] With the development of the national economy and the continuous improvement of living standards, vehicles are becoming increasingly important in daily life and travel. The durability of various structures and emission control are crucial considerations during vehicle production. In extreme off-road or sharp-turning conditions, the chassis of existing vehicles must withstand three-dimensional complex torsion. Furthermore, the bellows in the exhaust system only adapt to axial compression and radial displacement, making it prone to plastic deformation under alternating torsional stress. This can lead to weld cracking, airtightness failure, and in extreme cases, even bellows breakage. Consequently, this results in abnormally high engine back pressure, affecting power output and emission control, indicating room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an exhaust assembly that can reduce the alternating load on the bellows, ensure the reliability of the bellows, improve the engine's operating stability, and thus ensure the vehicle's power output and emission control.

[0004] An exhaust assembly according to an embodiment of the present invention includes: a catalytic converter, the inlet end of which is connected to the exhaust port of an engine, and the outlet end of which is formed with a first spherical seat; a bellows, the inlet end of which is formed with a second spherical seat, and the outlet end of which is connected to a particulate filter; wherein the first spherical seat and the second spherical seat are sleeved and connected to form a ball joint, thereby connecting the catalytic converter and the bellows.

[0005] According to the exhaust assembly of this utility model embodiment, a first spherical seat is formed at the outlet end of the catalytic converter, and a second spherical seat is formed at the inlet end of the bellows. The first spherical seat and the second spherical seat are ball-jointed, thereby allowing the bellows to deflect in multiple directions relative to the catalytic converter. The alternating load on the bellows can be converted through ball-joint compensation to decompose the deflection torque on the bellows. This can prevent cracking at the connection of the bellows, ensuring the reliability of the bellows and the airtightness of the exhaust assembly. This, in turn, ensures the stability of engine operation, as well as the power output and emission control of the vehicle. The result is better performance and has a wider range of applications.

[0006] According to some embodiments of the present invention, in the exhaust assembly, a sealing element is provided between the first spherical seat and the second spherical seat. The sealing element is constructed as a sealing ring, which is circumferentially disposed between the first spherical seat and the second spherical seat.

[0007] According to some embodiments of the present invention, in the exhaust assembly, the sealing rings are provided as at least two, the at least two sealing rings are distributed axially, and one of the at least two sealing rings is located near the catalytic converter, and the other of the at least two sealing rings is located near the bellows.

[0008] According to some embodiments of the present invention, in the exhaust assembly, the outlet end of the catalytic converter is provided with an exhaust pipe, and the first spherical seat is formed at the end of the exhaust pipe away from the catalytic converter;

[0009] And / or, the bellows includes a bellows body and a connecting pipe, the connecting pipe being connected to the inlet end of the bellows body, and the second spherical seat being formed at the end of the connecting pipe away from the bellows body.

[0010] According to some embodiments of the present invention, in the exhaust assembly, the second spherical seat is integrally formed with the connecting pipe, and the connecting pipe is inserted and connected to the inlet end of the corrugated pipe body.

[0011] According to some embodiments of the present invention, in the exhaust assembly, the end of the first spherical seat away from the exhaust pipe has a movable opening, the radial dimension of the movable opening is set to be smaller than the diameter of the second spherical seat, and the diameter of the exhaust pipe is set to be smaller than the diameter of the second spherical seat.

[0012] According to some embodiments of the present invention, the exhaust assembly of the first spherical seat includes an annular connecting seat and an annular movable seat. The annular connecting seat is formed at the outlet end of the catalytic converter. The annular movable seat is detachably connected to the annular connecting seat. The annular movable seat is sleeved on the second spherical seat and is adapted to limit the second spherical seat axially when connected to the annular connecting seat.

[0013] According to some embodiments of the present invention, the exhaust assembly has a first flange on the annular connecting seat and a second flange on the annular movable seat, and the first flange and the second flange are connected by a connector.

[0014] According to some embodiments of the present invention, the exhaust assembly has the centers of the first spherical seat and the second spherical seat overlapping.

[0015] This utility model also proposes a vehicle.

[0016] The vehicle according to the embodiments of the present invention includes the exhaust assembly described in any of the above claims.

[0017] The vehicle and the exhaust assembly described above have the same advantages over the prior art, which will not be repeated here.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a cross-sectional view of the exhaust assembly according to an embodiment of the present utility model;

[0021] Figure 2 This is a partial cross-sectional view of the exhaust assembly according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the exhaust assembly according to an embodiment of the present utility model.

[0023] Figure label:

[0024] Exhaust assembly 100,

[0025] Catalytic converter 1, outlet pipe 11, first spherical seat 12, annular connecting seat 121, first flange 122, annular movable seat 123, movable opening 124, second flange 125, connector 126.

[0026] Bellows 2, bellows body 21, connecting pipe 22, second spherical seat 23, air inlet 231.

[0027] 3. Seal; 4. Particle trap. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0032] In extreme off-road or sharp turning conditions, the chassis of existing vehicles must withstand three-dimensional complex torsion. Furthermore, the bellows of the vehicle's exhaust assembly can only adapt to axial compression and radial displacement. This makes the bellows prone to plastic deformation under alternating torsional stress, resulting in weld cracking, airtightness failure, and in extreme cases, even bellows breakage. Consequently, the engine back pressure rises abnormally, affecting power output and emission control.

[0033] The following is for reference. Figures 1-3 According to the exhaust assembly 100 of this utility model embodiment, the alternating load on the bellows 2 can be reduced, ensuring the reliability of the bellows 2, thereby improving the engine's operating stability, and thus ensuring the vehicle's power output and emission control.

[0034] like Figures 1-3 As shown, an exhaust assembly 100 according to one embodiment of the present invention includes: a catalytic converter 1 and a bellows 2.

[0035] The inlet end of the catalytic converter 1 is connected to the exhaust port of the engine. The outlet end of the catalytic converter 1 is formed with a first spherical seat 12. The inlet end of the bellows 2 is formed with a second spherical seat 23. The outlet end of the bellows 2 is connected to the particulate filter 4. The first spherical seat 12 and the second spherical seat 23 are sleeved and connected to form a ball joint, and the catalytic converter 1 is connected to the bellows 2.

[0036] When the vehicle's engine is running, the combustion of fuel in the engine combustion chamber produces exhaust gas. The exhaust gas can be transported to the exhaust assembly 100 through the engine's exhaust manifold. After noise reduction, purification and particulate matter treatment by the exhaust assembly 100, it is discharged into the atmosphere. The exhaust assembly 100 can purify harmful gases in the exhaust gas and capture and regularly clean particulate matter in the exhaust gas, thereby improving the vehicle's environmental friendliness and protecting human health. In addition, the exhaust assembly 100 can reduce the noise of gas emissions and improve the riding experience.

[0037] Specifically, the exhaust assembly 100 is equipped with a catalytic converter 1. The inlet end of the catalytic converter 1 can be connected to the outlet end of the engine. That is, the exhaust gas produced by combustion in the combustion chamber of the engine can be discharged into the catalytic converter 1 of the exhaust assembly 100 through the exhaust manifold of the engine. The harmful gases in the exhaust gas can undergo chemical reaction in the catalytic converter 1, thereby converting the harmful gases into harmless gases and improving the environmental friendliness of the vehicle during use.

[0038] Furthermore, the exhaust assembly 100 is equipped with a bellows 2, which connects the catalytic converter 1 and the particulate filter 4. Harmless gases discharged from the outlet of the catalytic converter 1 can be transported to the particulate filter 4 through the bellows 2. The particulate filter 4 can capture and collect small particulate matter in the gas, such as soot and dust, and then oxidize and burn them at high temperature to convert them into harmless carbon dioxide, which is then discharged into the atmosphere. This reduces the particulate pollution of the vehicle to the environment and improves the environmental friendliness of the vehicle. At the same time, the bellows 2 can be axially compressed and radially displaced, allowing the catalytic converter 1 and the particulate filter 4 to move slightly along the axial and radial directions of the bellows 2, ensuring the reliability of the exhaust assembly 100.

[0039] Furthermore, a first spherical seat 12 is formed at the outlet end of the catalytic converter 1. The first spherical seat 12 is constructed as a spherical hollow structure, and the end of the first spherical seat 12 away from the catalytic converter 1 is open. A second spherical seat 23 is formed at the inlet end of the bellows 2. The second spherical seat 23 is also constructed as a spherical hollow structure, and the end of the second spherical seat 23 away from the bellows 2 is open. This allows the first spherical seat 12 and the second spherical seat 23 to be fitted together and form a ball joint. The first spherical seat 12 can be fitted over the second spherical seat 23, and the second spherical seat 23 can be fitted over the first spherical seat 12, so that a ball joint can be formed between the first spherical seat 12 and the second spherical seat 23. The catalytic converter 1 and the bellows 2 can be connected through the first spherical seat 12 and the second spherical seat 23.

[0040] This allows the bellows 2 to be positioned relative to the catalytic converter 1 at multiple angles, enabling the alternating load on the bellows 2 to be converted through ball joint compensation. This deflects the deflection torque on the bellows 2, reduces the shear stress at the connection of the bellows 2, and improves the adaptability of the exhaust assembly 100 to non-axial torsion. It also prevents the exhaust assembly 100 from failing due to insufficient torsional load-bearing capacity, thereby improving the reliability and durability of the exhaust assembly 100. Furthermore, it prevents cracking at the connection of the bellows 2, thus avoiding gas leakage and ensuring the airtightness of the exhaust assembly 100. This, in turn, ensures the stability of engine operation, as well as the power output and emission control of the vehicle.

[0041] According to one embodiment of the present invention, the exhaust assembly 100 has a first spherical seat 12 formed at the outlet end of the catalytic converter 1 and a second spherical seat 23 formed at the inlet end of the bellows 2. The first spherical seat 12 and the second spherical seat 23 are ball-jointed, which allows the bellows 2 to deflect in multiple directions relative to the catalytic converter 1. The alternating load on the bellows 2 can be converted through ball-joint compensation to decompose the deflection torque on the bellows 2. This can prevent cracking at the connection of the bellows 2, ensure the reliability of the bellows 2, and ensure the airtightness of the exhaust assembly 100. This can ensure the stability of engine operation, as well as the power output and emission control of the vehicle. The result is better performance and has a wider range of applications.

[0042] In some embodiments, a sealing element 3 is provided between the first spherical seat 12 and the second spherical seat 23. The sealing element 3 is constructed as a sealing ring, which is circumferentially disposed between the first spherical seat 12 and the second spherical seat 23.

[0043] Specifically, such as Figures 1-2As shown, a sealing element 3 is provided between the first spherical seat 12 and the second spherical seat 23, which can ensure the sealing between the first spherical seat 12 and the second spherical seat 23, so as to ensure the sealing of the connection between the catalytic converter 1 and the bellows 2, avoid gas leakage, thereby avoiding abnormal engine back pressure, ensuring the reliability of gas emission control, and ensuring the reliability of engine operation and the power output of the engine.

[0044] Furthermore, the sealing element 3 is constructed as a sealing ring, which extends along the distribution direction of the outlet end of the catalytic converter 1 and the inlet end of the bellows 2, that is, both ends of the sealing ring are open, thereby ensuring the connection between the catalytic converter 1 and the bellows 2, so as to ensure the reliability of gas transmission.

[0045] Furthermore, the sealing ring can seal the gap between the first spherical seat 12 and the second spherical seat 23 in the circumferential direction, so that when the first spherical seat 12 and the second spherical seat 23 are displaced at multiple angles, the sealing ring can seal the gap between the first spherical seat 12 and the second spherical seat 23 in the circumferential direction, ensuring the sealing of the connection between the catalytic converter 1 and the bellows 2, avoiding gas leakage, improving environmental protection, and ensuring engine back pressure, thereby ensuring engine operation stability, as well as ensuring vehicle power output and emission control.

[0046] In some embodiments, at least two sealing rings are provided, the at least two sealing rings are distributed axially, and one of the at least two sealing rings is located near the catalytic converter 1, and the other of the at least two sealing rings is located near the bellows 2.

[0047] Specifically, a sealing ring is provided between the first spherical seat 12 and the second spherical seat 23, and at least two sealing rings are provided, that is, two, three or four sealing rings can be provided. In this embodiment, two sealing rings are provided, so that the first spherical seat 12 and the second spherical seat 23 can be sealed multiple times by at least two sealing rings, thereby improving the sealing performance between the first spherical seat 12 and the second spherical seat 23. Moreover, when one of the at least two sealing rings is damaged, the remaining sealing rings can still be used, avoiding gas leakage and ensuring the reliability of the sealing rings.

[0048] Furthermore, at least two sealing rings are distributed along the axial direction, which is the distribution direction of the outlet end of the catalytic converter 1 and the inlet end of the bellows 2. The first spherical seat 12 is open towards the bellows 2, and the second spherical seat 23 is open towards the catalytic converter 1, so that when the first spherical seat 12 and the second spherical seat 23 are fitted together, the gas can be transported from the catalytic converter 1 to the bellows 2, and the two ends of the gap between the first spherical seat 12 and the second spherical seat 23 are open towards the catalytic converter 1 and the bellows 2, respectively. One of the at least two sealing rings is located close to the catalytic converter 1, and the other of the at least two sealing rings is located close to the bellows 2.

[0049] In this way, the sealing rings can seal both ends of the gap respectively, so that when the first spherical seat 12 and the second spherical seat 23 rotate relative to each other at multiple angles, at least the two sealing rings can also be circumferentially displaced, reducing the shear force on the sealing rings, thereby extending the service life of the sealing rings and ensuring the sealing performance of the sealing rings.

[0050] In some embodiments, the outlet end of the catalytic converter 1 is provided with an outlet pipe 11, and a first spherical seat 12 is formed at the end of the outlet pipe 11 away from the catalytic converter 1.

[0051] Specifically, such as Figure 1 and Figure 3 As shown, the outlet end of the catalytic converter 1 is provided with an exhaust pipe 11. One end of the exhaust pipe 11 is connected to the inside of the catalytic converter 1, and the other end of the exhaust pipe 11, that is, the end of the exhaust pipe 11 away from the catalytic converter 1, forms a first spherical seat 12. The first spherical seat 12 and the exhaust pipe 11 can be connected by welding or other means, or they can be integrally formed with the exhaust pipe 11. This allows the gas output from the catalytic converter 1 to flow to the exhaust pipe 11 and be delivered to the first spherical seat 12 through the exhaust pipe 11. In actual installation, the length of the exhaust pipe 11 can be adjusted according to the overall length of different vehicles and other conditions to improve the flexibility of the installation.

[0052] In other embodiments, the bellows 2 includes a bellows body 21 and a connecting pipe 22, the connecting pipe 22 being connected to the inlet end of the bellows body 21, and a second spherical seat 23 being formed at the end of the connecting pipe 22 away from the bellows body 21.

[0053] Specifically, such as Figures 1-3 As shown, the bellows 2 is provided with a bellows body 21 and a connecting pipe 22. The inlet end of the bellows 2 is provided with the connecting pipe 22. One end of the connecting pipe 22 is connected to the bellows 2, and the other end of the connecting pipe 22, that is, the end of the connecting pipe 22 away from the bellows 2, is formed with a second spherical seat 23. The second spherical seat 23 and the connecting pipe 22 can be connected by welding or other means, or they can be integrally formed with the connecting pipe 22. Thus, the gas output from the catalytic converter 1 can be transported to the connecting pipe 22 through the first spherical seat 12 and the second spherical seat 23, so as to be transported to the bellows body 21 through the connecting pipe 22.

[0054] Furthermore, in actual installation, the length of the connecting pipe 22 can be adjusted according to the overall length of different vehicles to improve the flexibility of the installation. The length of the exhaust pipe 11 can be set to be less than the length of the connecting pipe 22, that is, the length of the exhaust pipe 11 is set to be smaller and the length of the connecting pipe 22 is set to be longer. The corrugated pipe body 21 can deform in the axial and radial directions, thereby reducing the load on the connecting pipe 22. The exhaust pipe 11 is fixedly connected to the catalytic converter 1. Setting the length of the exhaust pipe 11 to be shorter can improve the torsional resistance of the exhaust pipe 11 to ensure the reliability of the exhaust pipe 11.

[0055] In some embodiments, the second spherical seat 23 is integrally formed with the connecting pipe 22, and the connecting pipe 22 is inserted and connected to the inlet end of the corrugated pipe body 21.

[0056] Specifically, the second spherical seat 23 is formed at the end of the connecting pipe 22 away from the corrugated pipe body 21, and the second spherical seat 23 and the connecting pipe 22 are integrally formed, which can avoid the presence of weld seams or other structures between the second spherical seat 23 and the connecting pipe 22, and thus avoid local structural weakness between the second spherical seat 23 and the connecting pipe 22, so as to ensure the reliability of the connection between the second spherical seat 23 and the connecting pipe 22. Furthermore, integrally forming the second spherical seat 23 and the connecting pipe 22 can reduce installation steps and improve production efficiency.

[0057] Furthermore, such as Figure 2 As shown, the inlet end of the corrugated pipe body 21 has an outwardly protruding connecting part. The inner diameter of the connecting part is set to be the same as the outer diameter of the connecting pipe 22, and the connecting part and the connecting pipe 22 are interference fit. This allows the end of the connecting pipe 22 away from the second spherical seat 23 to be directly inserted into the connecting part, making the connection convenient and saving installation time. In actual installation, the inner diameter of the connecting pipe 22 can also be set to be the same as the outer diameter of the connecting part so that the connecting part can be inserted into the connecting pipe 22, improving the flexibility of the installation.

[0058] In some embodiments, a movable opening 124 is formed at the end of the first spherical seat 12 away from the air outlet pipe 11. The radial dimension of the movable opening 124 is set to be smaller than the diameter of the second spherical seat 23, and the diameter of the air outlet pipe 11 is set to be smaller than the diameter of the second spherical seat 23.

[0059] Specifically, such as Figure 2As shown, the first spherical seat 12 is fitted outside the second spherical seat 23. The second spherical seat 23 has an air inlet 231 at the end away from the connecting pipe 22. The air inlet 231 is connected to the air outlet pipe 11, so that the gas output by the catalytic converter 1 can be output to the second spherical seat 23 through the air outlet pipe 11, and then transported to the connecting pipe 22 through the second spherical seat 23. The first spherical seat 12 has a movable opening 124 at the end away from the air outlet pipe 11. The second spherical seat 23 is located inside the first spherical seat 12, and the connecting pipe 22 can pass through the movable opening 124. The radial dimension of the movable opening 124 is set to be larger than the outer diameter of the connecting pipe 22, so as to ensure the reliability of the movement of the second spherical seat 23 relative to the first spherical seat 12.

[0060] Furthermore, the radial dimension of the movable opening 124 is set to be smaller than the diameter of the second spherical seat 23, thereby preventing the second spherical seat 23 from sliding out of the movable opening 124. The diameter of the exhaust pipe 11 is also set to be smaller than the diameter of the second spherical seat 23, thereby preventing the second spherical seat 23 from extending into the exhaust pipe 11. This allows the exhaust pipe 11 and the first spherical seat 12 to axially limit the second spherical seat 23, ensuring the reliable installation of the second spherical seat 23. It also ensures that the second spherical seat 23 only moves relative to the first spherical seat 12 on its spherical surface, thus ensuring the overall length of the exhaust assembly 100 and the installation reliability of each structure of the exhaust assembly 100. Here, the diameter of the second spherical seat 23 refers to the diameter of the outer peripheral wall of the second spherical seat 23.

[0061] In some embodiments, the first spherical seat 12 includes an annular connecting seat 121 and an annular movable seat 123. The annular connecting seat 121 is formed at the outlet end of the catalytic converter 1. The annular movable seat 123 is detachably connected to the annular connecting seat 121. The annular movable seat 123 is sleeved on the second spherical seat 23 and is adapted to limit the second spherical seat 23 in the axial direction when connected to the annular connecting seat 121.

[0062] Specifically, such as Figures 1-3 As shown, the first spherical seat 12 is provided with an annular connecting seat 121 and an annular movable seat 123. The annular connecting seat 121 and the annular movable seat 123 are distributed along the axial direction. The annular connecting seat 121 is located close to the catalytic converter 1, and the annular movable seat 123 is located close to the bellows 2. The annular connecting seat 121 and the annular movable seat 123 are respectively constructed as annular structures. The annular connecting seat 121 is formed at the outlet end of the catalytic converter 1. That is, the annular connecting seat 121 can be integrally formed with the gas outlet pipe 11, or it can be installed on the gas outlet pipe 11 by welding or other means.

[0063] Furthermore, the annular movable seat 123 is detachably connected to the annular connecting seat 121. The annular movable seat 123 is sleeved on the outside of the second spherical seat 23, so that the second spherical seat 23 can extend from the open end of the annular connecting seat 121 into the first spherical seat 12. At this time, the annular movable seat 123 can be connected to the annular connecting seat 121, thereby allowing the annular movable seat 123 to limit the second spherical seat 23 in the axial direction, which is convenient for installation.

[0064] Furthermore, the connecting pipe 22 is inserted and connected to the inlet end of the corrugated pipe body 21, making the connecting pipe 22 detachable from the inlet end of the corrugated pipe body 21. This allows the annular movable seat 123 to be sleeved on the outside of the connecting pipe 22 from the end away from the second spherical seat 23. When the second spherical seat 23 extends into the annular connecting seat 121, the annular movable seat 123 can be moved toward the annular connecting seat 121 to connect with the annular connecting seat 121. This facilitates the installation of the annular movable seat 123 and the ball joint engagement of the first spherical seat 12 and the second spherical seat 23, improving installation convenience and saving installation time.

[0065] In some embodiments, the annular connecting seat 121 is provided with a first flange 122, and the annular movable seat 123 is provided with a second flange 125. The first flange 122 and the second flange 125 are connected by a connector 126.

[0066] Specifically, a first flange 122 is provided at the end of the annular connecting seat 121 away from the outlet pipe 11. The first flange 122 can be connected to the annular connecting seat 121 by welding or other means. A second flange 125 is provided at the end of the annular movable seat 123 away from the connecting pipe 22. The second flange 125 can be connected to the annular movable seat 123 by welding or other means. When the second spherical seat 23 extends into the annular connecting seat 121, the first flange 122 can be connected to the second flange 125 by a connector 126. The connector 126 can be a bolt or the like. The structure is simple, the installation is convenient, and the installation cost is low.

[0067] This makes the annular movable seat 123 detachable from the annular connecting seat 121, and consequently the second spherical seat 23 detachable from the second spherical seat 23, so that the bellows 2 is detachable from the catalytic converter 1, which facilitates later maintenance. Furthermore, if either the catalytic converter 1 or the bellows 2 is damaged, only the damaged part can be replaced, reducing maintenance costs.

[0068] In actual installation, the first flange 122 and the second flange 125 are provided with multiple connecting parts along the circumference, and multiple connecting pieces 126 are also provided. These multiple connecting parts and multiple connecting pieces 126 are arranged in a one-to-one correspondence, allowing the first flange 122 and the second flange 125 to be connected at multiple points along the circumference via the connecting pieces 126. Furthermore, if one of the connecting pieces 126 is damaged, the remaining connecting pieces 126 can maintain the connection, ensuring connection reliability. In addition, the forces acting on the first flange 122 and the second flange 125 can be distributed to each connecting piece 126, reducing the stress on each connecting piece 126 and thus extending its service life.

[0069] In some embodiments, the centers of the first spherical seat 12 and the second spherical seat 23 are arranged to coincide.

[0070] Specifically, the first spherical seat 12 and the second spherical seat 23 are sleeved and connected, and the centers of the first spherical seat 12 and the second spherical seat 23 are aligned, so that the size of the gap between the first spherical seat 12 and the second spherical seat 23 is set to be the same. The sealing element 3 is disposed between the first spherical seat 12 and the second spherical seat 23, so that the thickness of the sealing element 3 can also be set to be the same at all points. When the first spherical seat 12 and the second spherical seat 23 move relative to each other, the force on the sealing element 3 is the same at all points, thereby extending the service life of the sealing element 3 and ensuring the reliability of the seal.

[0071] This utility model also proposes a vehicle.

[0072] The vehicle according to the present invention includes an exhaust assembly 100 as described above.

[0073] According to the vehicle of this utility model embodiment, an exhaust assembly 100 is provided. The exhaust assembly 100 has a first spherical seat 12 formed at the outlet end of the catalytic converter 1 and a second spherical seat 23 formed at the inlet end of the bellows 2. The first spherical seat 12 and the second spherical seat 23 are ball-jointed, so that the bellows 2 can be deflected in multiple directions relative to the catalytic converter 1. The alternating load on the bellows 2 can be converted through ball-joint compensation to decompose the deflection torque on the bellows 2. This can avoid cracking at the connection of the bellows 2, ensure the reliability of the bellows 2, and ensure the airtightness of the exhaust assembly 100. This can ensure the stability of engine operation, as well as the power output and emission control of the vehicle. The performance is better and the application range is wider.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An exhaust assembly, characterized in that, include: Catalytic converter (1), the inlet end of the catalytic converter (1) is connected to the outlet of the engine, and the outlet end of the catalytic converter (1) is formed with a first spherical seat (12). A bellows (2) has a second spherical seat (23) at its inlet end and is connected to a particle trap (4) at its outlet end. The first spherical seat (12) and the second spherical seat (23) are sleeved and connected to form a ball joint, and the catalytic converter (1) is connected to the bellows (2).

2. The exhaust assembly according to claim 1, characterized in that, A sealing element (3) is provided between the first spherical seat (12) and the second spherical seat (23). The sealing element (3) is constructed as a sealing ring, which is circumferentially disposed between the first spherical seat (12) and the second spherical seat (23).

3. The exhaust assembly according to claim 2, characterized in that, The sealing rings are provided in at least two, the at least two sealing rings are distributed along the axial direction, and one of the at least two sealing rings is located near the catalytic converter (1), and the other of the at least two sealing rings is located near the bellows (2).

4. The exhaust assembly according to claim 1, characterized in that, The catalytic converter (1) is provided with an outlet pipe (11) at its outlet end, and the first spherical seat (12) is formed at the end of the outlet pipe (11) away from the catalytic converter (1). And / or, the bellows (2) includes a bellows body (21) and a connecting pipe (22), the connecting pipe (22) being connected to the inlet end of the bellows body (21), and the second spherical seat (23) being formed at the end of the connecting pipe (22) away from the bellows body (21).

5. The exhaust assembly according to claim 4, characterized in that, The second spherical seat (23) is integrally formed with the connecting pipe (22), and the connecting pipe (22) is inserted and connected to the inlet end of the corrugated pipe body (21).

6. The exhaust assembly according to claim 4, characterized in that, The first spherical seat (12) has a movable opening (124) at one end away from the air outlet pipe (11). The radial dimension of the movable opening (124) is set to be smaller than the diameter of the second spherical seat (23), and the diameter of the air outlet pipe (11) is set to be smaller than the diameter of the second spherical seat (23).

7. The exhaust assembly according to claim 1, characterized in that, The first spherical seat (12) includes an annular connecting seat (121) and an annular movable seat (123). The annular connecting seat (121) is formed at the outlet end of the catalytic converter (1). The annular movable seat (123) is detachably connected to the annular connecting seat (121). The annular movable seat (123) is sleeved on the second spherical seat (23) and is adapted to limit the second spherical seat (23) in the axial direction when connected to the annular connecting seat (121).

8. The exhaust assembly according to claim 7, characterized in that, The annular connecting seat (121) is provided with a first flange (122), and the annular movable seat (123) is provided with a second flange (125). The first flange (122) and the second flange (125) are connected by a connector (126).

9. The exhaust assembly according to claim 1, characterized in that, The centers of the first spherical seat (12) and the second spherical seat (23) are set to coincide.

10. A vehicle, characterized in that, Includes the exhaust assembly (100) according to any one of claims 1-9.

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