Exhaust pipe assembly and vehicle

Abstract

The utility model discloses an exhaust pipe assembly and a vehicle, the exhaust pipe assembly comprises a first pipe body and a second pipe body, one end of the first pipe body is provided with an outwardly turned matching part, the second pipe body comprises a first pipe section and a second pipe section, the joint of the first pipe section and the second pipe section is provided with a convex hump part, and the first pipe section is inserted into the first pipe body; the hoop structure comprises a fastener and a hoop, a hoop groove is formed in the hoop, the matching part and the hump part extend into the hoop groove, and the fastener is connected with the hoop and used for pressing the matching part and the hump part through the hoop; a first anti-rotation part is formed in the first pipe body, the first pipe section is provided with a first matching part, and the first anti-rotation part and the first matching part are connected in an inserted mode and matched in a limiting mode in the circumferential direction. According to the exhaust pipe assembly, rapid assembly and positioning of the exhaust pipeline can be achieved, the structure is simple, the size is small, the exhaust pipe assembly can be flexibly arranged in the arrangement space of an automobile chassis, whole automobile assembly is achieved, and interference with peripheral components of the chassis is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to an exhaust pipe assembly and a vehicle with the exhaust pipe assembly. Background Art

[0002] The exhaust pipe of a car is installed at the bottom of the car and is the exhaust gas discharge channel of the car engine. Due to the extremely limited space at the bottom of the car, the exhaust pipe needs to be segmented and connected. At present, the existing automobile exhaust pipe connection structure is usually a flange connection, which connects two segmented exhaust pipes by flanges, gaskets, bolts and nuts. However, this pipe connection structure has complex procedures, long assembly time, fixed installation position and cannot rotate. Especially when the layout space of the automobile chassis is small, this connection structure is large in size and easily interferes with the surrounding parts of the chassis. There is still room for improvement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an exhaust pipe assembly, which can realize the rapid assembly and positioning of the exhaust pipe, has a simple structure and a small size, and can be flexibly arranged in the layout space of the automobile chassis to realize the assembly of the whole vehicle, avoid interference with the surrounding components of the chassis, and solve the problem that the traditional flange connection structure cannot meet the layout requirements of the whole vehicle due to insufficient chassis layout space.

[0004] According to the embodiment of the utility model, the exhaust pipe assembly includes: a first tube body and a second tube body, one end of the first tube body is formed with an outward-turned mating portion, the second tube body includes a first tube segment and a second tube segment, the first tube segment or the second tube segment is formed with an outward-protruding hump portion, and the first tube segment is inserted into the first tube body; a hoop structure, the hoop structure includes a fastener and a hoop, the hoop is formed with a hoop groove, the mating portion and the hump portion both extend into the hoop groove, the fastener is connected to the hoop and is used to press the hoop against the mating portion and the hump portion; wherein a first anti-rotation portion is formed in the first tube body, the first tube segment is provided with a first mating portion, the first anti-rotation portion is inserted into the first mating portion and is mated along the circumferential limit direction.

[0005] According to the exhaust pipe assembly of the embodiment of the utility model, the matching part of the first tube body and the hump part of the second tube body are compressed and fixed by arranging a hoop structure, and the first anti-rotation part and the first matching part are arranged to be plugged and limited along the circumferential direction to prevent the first tube body and the second tube body from rotating relative to each other and affecting the assembly, thereby achieving a stable connection between the first tube body and the second tube body, facilitating the rapid assembly and positioning of the exhaust pipe, and improving the assembly efficiency. The utility model has a simple structure and a small size, and can be flexibly arranged in the layout space of the automobile chassis to realize the assembly of the whole vehicle and avoid interference with the surrounding components of the chassis, thereby solving the problem that the traditional flange connection structure cannot meet the layout requirements of the whole vehicle due to insufficient chassis layout space.

[0006] According to the exhaust pipe assembly of some embodiments of the present invention, the exhaust pipe assembly further includes a sealing member installed between the matching portion and the hump portion.

[0007] According to the exhaust pipe assembly of some embodiments of the utility model, the sealing member includes an annular main body portion and a claw portion, the annular main body portion is clamped between the matching portion and the hump portion, the claw portion is connected to the edge of the annular main body portion, and the claw portion is pressed against the hump portion or the first pipe section.

[0008] According to the exhaust pipe assembly of some embodiments of the present invention, there are a plurality of the claw portions, and the plurality of the claw portions are spaced apart and distributed in the circumferential direction of the annular main body portion.

[0009] According to the exhaust pipe assembly of some embodiments of the present invention, the claw portion is located at one side edge of the annular main body portion, and a hand holding portion is provided at the other side edge of the annular main body portion, and the hand holding portion extends from between the matching portion and the hump portion.

[0010] According to the exhaust pipe assembly of some embodiments of the utility model, the annular main body is provided with a sealing protrusion, which is suitable for pressing against one of the matching part and the hump part, and the annular main body is formed with a sealing groove at the sealing protrusion which is open toward the other of the matching part and the hump part.

[0011] According to the exhaust pipe assembly of some embodiments of the present invention, one of the first anti-rotation portion and the first matching portion is configured as a plug-in protrusion and the other is configured as a limiting opening, and the plug-in protrusion is plug-fitted with the limiting opening along the axial direction of the first pipe section.

[0012] According to the exhaust pipe assembly of some embodiments of the present invention, the limiting opening is formed at an end of the first pipe section away from the second pipe section, and the plug-in protrusion is formed on the inner peripheral wall of the first pipe body.

[0013] According to some embodiments of the present invention, the exhaust pipe assembly further includes a connecting plate, one end of which is connected to the first pipe body, and the other end of which is connected to the hoop.

[0014] The utility model also provides a vehicle.

[0015] A vehicle according to an embodiment of the utility model comprises the exhaust pipe assembly described in any one of the above embodiments.

[0016] The advantages of the vehicle and the exhaust pipe assembly described above over the prior art are the same and will not be described in detail here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 The structure of the exhaust pipe assembly according to the embodiment of the utility model is schematically shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the exhaust pipe assembly according to the embodiment of the utility model is schematically shown in FIG. Figure 2 ;

[0021] Figure 3 The structure of the exhaust pipe assembly according to the embodiment of the utility model is schematically shown in FIG. Figure 3 ;

[0022] Figure 4 is a cross-sectional view of an exhaust pipe assembly according to an embodiment of the utility model;

[0023] Figure 5 yes Figure 4 Schematic diagram of the local structure;

[0024] Figure 6 is an assembly diagram of a first tube body and a hoop structure according to an embodiment of the utility model;

[0025] Figure 7 It is an assembly diagram of the second tube body, the sealing member and the hoop structure according to an embodiment of the utility model;

[0026] Figure 8 It is an assembly diagram of the first tube body, the second tube body and the sealing member according to an embodiment of the utility model;

[0027] Fig. 9It is a structural schematic diagram of a hoop structure according to an embodiment of the utility model;

[0028] Fig.10 The structure of the sealing member according to the embodiment of the utility model is shown in FIG. Figure 1 ;

[0029] Fig.11 The structure of the sealing member according to the embodiment of the utility model is shown in FIG. Figure 2 ;

[0030] Fig.12 is a schematic structural diagram of a second tube body according to an embodiment of the utility model;

[0031] Fig.13 It is a structural schematic diagram of the first tube body according to an embodiment of the utility model.

[0032] Reference numerals:

[0033] Exhaust pipe assembly 100,

[0034] The first tube body 1, the matching portion 11, the first anti-rotation portion 12,

[0035] The second tube body 2, the first tube section 21, the first matching portion 211, the second tube section 22, the hump portion 23,

[0036] Hoop structure 3, fastener 31, bolt 311, nut 312, stopper 313, hoop 32, connecting support plate 321, hoop groove 322,

[0037] Sealing member 4, annular main body 41, sealing protrusion 411, sealing groove 412, claw portion 42, hand-held portion 43,

[0038] Connecting plate 5. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Reference below Figure 1-Figure 13 The exhaust pipe assembly 100 according to the embodiment of the utility model is described. The exhaust pipe assembly 100 can realize the rapid assembly and positioning of the exhaust pipe, and has a simple structure and a small size. It can be flexibly arranged in the layout space of the automobile chassis to realize the assembly of the whole vehicle and avoid interference with the surrounding components of the chassis. It solves the problem that the traditional flange connection structure cannot meet the layout requirements of the whole vehicle due to insufficient chassis layout space.

[0043] like Figure 1-Figure 13 As shown, the exhaust pipe assembly 100 according to the embodiment of the utility model includes: a first pipe body 1, a second pipe body 2 and a hoop structure 3.

[0044] The first tube body 1 and the second tube body 2 are connected to form an integral exhaust pipe structure, that is, one end of the first tube body 1 can be connected to one end of the second tube body 2, so that the first tube body 1 and the second tube body 2 are connected, and gas can flow therein, thereby achieving exhaust and ensuring the normal operation of the vehicle.

[0045] An outwardly turned fitting portion 11 is formed at one end of the first tube body 1 , and the second tube body 2 includes a first tube segment 21 and a second tube segment 22 . An outwardly protruding hump portion 23 is formed at the connection between the first tube segment 21 and the second tube segment 22 , and the first tube segment 21 is inserted into the first tube body 1 .

[0046] That is to say, the first tube body 1 is not a straight mouth, and one end thereof is folded outward so that the radial dimension of the port increases, that is, the diameter becomes larger, thereby forming a matching portion 11, so that the first tube body 1 is constructed in a trumpet shape, and the second tube body 2 is designed in sections, and is composed of a first tube segment 21 and a second tube segment 22 connected. The first tube segment 21 is used to connect with the first tube body 1, and an outwardly protruding hump portion 23 is formed on the first tube segment 21 or the second tube segment 22, that is, the first tube segment 21 or the second tube segment 22 can bulge outward to form a hump portion 23 with a V-shaped cross-section. The provision of the hump portion 23 can increase the connection strength between the first tube segment 21 and the second tube segment 22, and can make the airflow flow more smoothly during exhaust, reduce resistance, and improve exhaust efficiency.

[0047] In actual installation, the first pipe section 21 can be inserted into the first pipe body 1 to achieve the connection and cooperation between the first pipe body 1 and the second pipe body 2. Figure 1 and Figure 4 As shown, during insertion, the mating portion 11 can be fitted and connected with the hump portion 23. At the same time, the first pipe segment 21 extends into the first tube body 1, and the outer peripheral wall of the first pipe segment 21 is fitted and connected with the inner peripheral wall of the first tube body 1, thereby achieving a reliable connection between the first tube body 1 and the second tube body 2, thereby improving the reliability of the exhaust pipe assembly 100.

[0048] Furthermore, the hoop structure 3 includes a fastener 31 and a hoop 32. The hoop structure 3 is used to fix the connection between the first tube body 1 and the second tube body 2. In practice, the hoop 32 can be constructed in a ring shape and clamped outside the component to clamp it, that is, the hoop 32 can surround the outside of the connection between the matching portion 11 and the hump portion 23 to fix the two. The fastener 31 is connected to the hoop 32 to generate a pressing force on the hoop 32, so that the first tube body 1 and the second tube body 2 can be tightly connected. A hoop groove 322 is formed, that is, the hoop 32 can protrude outward along the circumferential direction to form the hoop groove 322, and the hoop groove 322 is adapted to the shape of the connection between the matching portion 11 and the hump portion 23, so that during actual installation and connection, the matching portion 11 and the hump portion 23 can both extend into the hoop groove 322. At this time, the fastener 31 can be tightened to make the hoop 32 generate pressure close to the matching portion 11 and the hump portion 23, thereby pressing the matching portion 11 and the hump portion 23 to achieve a fixed connection between the matching portion 11 and the hump portion 23.

[0049] Among them, a first anti-rotation portion 12 is formed in the first tube body 1, and the first anti-rotation portion 12 can be constructed as a protrusion, a notch, a tooth shape or other forms of shapes. The first tube section 21 is provided with a first matching portion 211 matching with the first anti-rotation portion 12, that is, the shape of the first matching portion 211 is adapted to the shape and size of the first anti-rotation portion 12, so that the first anti-rotation portion 12 and the first matching portion 211 can be plugged in and matched along the circumferential direction. Therefore, through the plug-in matching of the first anti-rotation portion 12 and the first matching portion 211, the first tube body 1 and the second tube body 2 can be prevented from relative rotation along the circumferential direction during assembly, which affects the assembly operation, thereby achieving a stable connection between the first tube body 1 and the second tube body 2, which is conducive to rapid assembly and positioning, and at the same time, the exhaust effect can be improved.

[0050] Therefore, the matching portion 11 of the first tube body 1 and the hump portion 23 of the second tube body 2 are pressed and fixed by setting the hoop structure 3, and the first anti-rotation portion 12 and the first matching portion 211 are provided to be plugged and limited along the circumferential direction to prevent the first tube body 1 and the second tube body 2 from rotating relative to each other to affect the assembly, thereby achieving a stable connection between the first tube body 1 and the second tube body 2, which is beneficial to the rapid assembly and positioning of the exhaust pipe and improves the assembly efficiency. The structure is simple and the size is small, so it can be flexibly arranged in the layout space of the automobile chassis without being restricted by the layout space, so as to realize the assembly of the whole vehicle and avoid interference with the surrounding components of the chassis, thereby solving the problem that the traditional flange connection structure cannot meet the layout requirements of the whole vehicle due to insufficient chassis layout space.

[0051] In some embodiments, the exhaust pipe assembly 100 further includes a seal 4 , which is installed between the fitting portion 11 and the hump portion 23 .

[0052] That is, the sealing member 4 can be constructed in an annular shape and sleeved between the mating portion 11 and the hump portion 23 to seal the mating portion 11 and the hump portion 23. Figure 5 As shown, the seal 4 is installed between the matching portion 11 and the hump portion 23, and its inner circumferential surface is pressed and connected with the outer circumferential wall of the hump portion 23, and its outer circumferential surface is pressed and connected with the inner circumferential wall of the matching portion 11, so that the seal 4 is tightly pressed and connected between the matching portion 11 and the hump portion 23, and can be deformed by the squeezing of the matching portion 11 and the hump portion 23, so as to fill the gap between the matching portion 11 and the hump portion 23, realize the tight connection between the first tube body 1 and the second tube body 2, and prevent gas leakage during the exhaust process. At the same time, the provision of the seal 4 can also improve the connection stability between the matching portion 11 and the hump portion 23, and prevent the connection between the first tube body 1 and the second tube body 2 from loosening or falling off due to vibration or impact.

[0053] In some embodiments, the seal 4 includes an annular main body portion 41 and a claw portion 42, the annular main body portion 41 is clamped between the mating portion 11 and the hump portion 23, the claw portion 42 is connected to the edge of the annular main body portion 41, and the claw portion 42 is pressed against the hump portion 23 or the first tube section 21.

[0054] Specifically, Fig.10 and Fig.11 As shown, the annular main body 41 is an annular structure, which is the main sealing part of the seal 4, and the outer peripheral surface is inclined, that is, the diameter gradually decreases from one end to the other end along the axial direction, so that it can adapt to the inclined surfaces of the matching part 11 and the hump part 23. In actual installation, it can be clamped between the matching part 11 and the hump part 23, and tightly fit and press against the surfaces of the matching part 11 and the hump part 23 to enhance the sealing effect.

[0055] The claw portion 42 is a portion extending radially for a certain distance at the edge of the annular main body portion 41. In actual installation, the claw portion 42 is toward the extension direction of the first pipe segment 21, and is pressed against the turning connection between the hump portion 23 and the first pipe segment 21. In other words, the claw portion 42 can be pressed against the end face edge of the hump portion 23 toward the mating portion 11 to clamp the two together and enhance the connection stability. This can prevent the seal 4 from falling off and improve the sealing performance of the seal 4.

[0056] Therefore, the sealing member 4 composed of the annular main body 41 and the claw portion 42 can ensure a tight connection and effective sealing between the first tube body 1 and the second tube body 2, thereby preventing gas leakage during the exhaust process.

[0057] In some embodiments, there are multiple claw portions 42, that is, the number of claw portions 42 can be set to two, three or even more. By setting multiple claw portions 42, multiple clamping points can be provided, so that the claw portions 42 can be more fully clamped at the connection between the hump portion 23 and the first pipe segment 21, thereby enhancing the connection stability, preventing the seal 4 from falling off, and further enhancing the sealing effect.

[0058] And the multiple claw portions 42 are distributed in the circumferential direction of the annular main body portion 41 at intervals, that is, the multiple claw portions 42 can be distributed uniformly or at certain intervals in the circumferential direction along the edge of the annular main body portion 41, thereby reducing the burden of a single claw portion 42 and enhancing the durability of the entire seal 4. At the same time, the connection between the hump portion 23 and the first pipe segment 21 and the mating portion 11 can be clamped in the circumferential direction.

[0059] Specifically, Fig.11As shown, four claw portions 42 are provided at the edge of the annular main body portion 41, and the four claw portions 42 are evenly spaced and distributed in the circumferential direction of the annular main body portion 41. In actual installation, the claw portions 42 may be slightly deformed to ensure a tighter fit between the hump portion 23 and the mating portion 11, further preventing the seal 4 from falling off.

[0060] It should be noted that the number of the claw portions 42 is not limited to that described in this embodiment, and can be flexibly adjusted according to actual needs.

[0061] In some embodiments, the claw portion 42 is located at one side edge of the annular main body portion 41 , and a hand-holding portion 43 is provided at the other side edge of the annular main body portion 41 . The hand-holding portion 43 extends from between the matching portion 11 and the hump portion 23 .

[0062] Specifically, Fig.11 As shown, the claw portion 42 is located at one side edge of the annular main body portion 41, extending toward the extension direction of the first pipe segment 21, and a hand-held portion 43 is provided at the other side edge of the annular main body portion 41, that is, away from the extension direction of the claw portion 42. The hand-held portion 43 can be easily taken by the operator, thereby improving the convenience. In practice, when the seal 4 is installed between the matching portion 11 and the hump portion 23, after the first tube body 1 and the second tube body 2 are assembled and tightened, the hand-held portion 43 extends out from between the matching portion 11 and the hump portion 23. At this time, the operator can bend the hand-held portion 43 to expose it at the hump portion 23, so that the operator can check whether the seal 4 is missing.

[0063] In practice, due to the inclined arrangement of the exhaust pipe, the seal 4 is easily affected by gravity and falls off during assembly. However, through the design of the claw portion 42, the seal 4 can be firmly clamped between the matching portion 11 and the hump portion 23 to prevent it from falling off due to gravity, thereby improving the operator's user experience.

[0064] In some embodiments, the annular main body 41 is provided with a sealing protrusion 411, which is suitable for pressing against one of the mating portion 11 and the hump portion 23, and the annular main body 41 is formed with a sealing groove 412 at the sealing protrusion 411 which is open toward the other of the mating portion 11 and the hump portion 23.

[0065] That is to say, the sealing protrusion 411 can protrude inward or outward. In other words, the sealing protrusion 411 can protrude toward the matching part 11 or toward the hump part 23, so that when the seal 4 is installed, the sealing protrusion 411 can be pressed against the matching part 11 or the hump part 23. By providing the sealing protrusion 411, a closer contact between the matching part 11 and the hump part 23 can be achieved, thereby effectively preventing gas leakage and ensuring the reliability of the sealing effect. At the same time, a sealing groove 412 open toward the matching part 11 or the hump part 23 is formed at the sealing protrusion 411. The sealing groove 412 can adapt to uneven surfaces, and the sealing groove 412 combined with the sealing protrusion 411 can further improve the sealing effect.

[0066] Specifically, Figure 5 and Fig.10 As shown, the annular main body 41 is provided with a sealing protrusion 411, which protrudes a certain distance toward the matching portion 11 to form a sealing groove 412 open toward the hump portion 23. The sealing protrusion 411 cooperates with the hump portion 23 to make the seal 4 fit more tightly between the matching portion 11 and the hump portion 23, increase the pressing contact area, form a continuous, leak-free sealing surface, and further improve the sealing performance of the entire seal 4.

[0067] In some embodiments, one of the first anti-rotation portion 12 and the first matching portion 211 is configured as an inserting protrusion and the other is configured as a limiting opening, and the inserting protrusion is insertably matched with the limiting opening along the axial direction of the first pipe segment 21 .

[0068] That is to say, the first anti-rotation portion 12 can be constructed as the first anti-rotation portion 12, and the first matching portion 211 can be constructed as a limiting opening, or the first anti-rotation portion 12 can be constructed as a limiting opening, and the first matching portion 211 is constructed as the first anti-rotation portion 12, the first anti-rotation portion 12 is adapted to the limiting opening, and is plug-fitted along the axial direction of the first pipe segment 21, that is, the first anti-rotation portion 12 is inserted into the limiting opening along the length direction of the first pipe segment 21, thereby avoiding axial movement and radial relative rotation of the first tube body 1 and the second tube body 2, achieving the connection and fixation of the first tube body 1 and the second tube body 2, and preventing relative rotation between the two to affect assembly.

[0069] In some embodiments, the limiting opening is formed at one end of the first tube section 21 away from the second tube section 22 , and the plug-in protrusion is formed on the inner circumferential wall of the first tube body 1 .

[0070] Specifically, Figure 1 and Figure 4As shown, the upper portion of the inner circumferential wall of the first tube body 1 protrudes inward to form a plug-in protrusion, and a limiting opening that is adapted to the shape and size of the plug-in protrusion is formed on the port of the first tube segment 21 at one end away from the second tube segment 22, and the limiting plug-in opening is open toward the plug-in protrusion. Therefore, in practice, when the first tube body 1 and the second tube body 2 are assembled, the plug-in protrusion inside the first tube body 1 will be inserted into the limiting opening along the axial direction of the first tube segment 21, thereby achieving a stable connection between the two, which can ensure the firmness and accuracy of the connection, and also facilitate assembly and disassembly. The provision of the plug-in protrusion can ensure the plug-in depth of the first tube segment 21, further improving the stability and reliability of the connection between the two.

[0071] In some embodiments, a connecting support plate 321 is formed at the end of the hoop 32, and two connecting support plates 321 are arranged opposite to each other. Fig. 9 As shown, the end of the hoop 32 extends outward to form two connecting support plates 321 opposite to each other. The connecting support plates 321 can be constructed in a plate shape for installing the fastener 31 .

[0072] The fastener 31 includes a bolt 311 and a nut 312 . The bolt 311 passes through the two connecting support plates 321 and is connected to the nut 312 .

[0073] That is to say, both connecting support plates 321 can be provided with threaded through holes for the bolts 311 to pass through, and the threaded through holes are adapted to the bolts 311, so that the bolts 311 can pass through the two connecting support plates 321. After the bolts 311 are installed, the nuts 312 can be installed at one end of the bolts 311 to achieve the installation of the fasteners 31. In practice, the operator can tighten the nuts 312 so that the annular main body 41 is tightened by force. When the specified torque is reached, the exhaust pipe assembly 100 reaches a clamping state. At this time, the matching portion 11 and the hump portion 23 are pressed tightly, and the first tube body 1 and the second tube body 2 are tightly connected.

[0074] In some embodiments, the exhaust pipe assembly 100 further includes a connecting plate 5 , one end of the connecting plate 5 is connected to the first pipe body 1 , and the other end of the connecting plate 5 is connected to the hoop 32 .

[0075] like Figure 3 As shown, the exhaust pipe assembly 100 may also be provided with a connecting plate 5, which may be constructed in a bent shape, with one end being a plane adapted to the outer peripheral wall of the first tube body 1, and the other end being adapted to the shape of the hoop 32, so that one end of the connecting plate 5 may be welded to the outer peripheral wall of the first tube body 1, and the other end may be welded to the outer surface of the hoop 32, thereby making the overall structure of the exhaust pipe assembly 100 more stable, and realizing integrated supply of the exhaust pipe assembly 100 without separate assembly, which not only saves assembly time but also greatly saves logistics costs, and at the same time can effectively ensure the assembly position in the whole vehicle.

[0076] As well as Fig. 9 As shown, the exhaust pipe assembly 100 may also be provided with a block 313, and the block 313 may also be provided with a threaded through hole compatible with the bolt 311. When installing the bolt 311, the block 313 is passed through the outer side of one end of the connecting support plate 321, that is, the block 313 is arranged between the nut 312 and the connecting support plate 321. As a result, when the nut 312 moves along the axial direction of the bolt 311 after being subjected to force, the nut 312 can resist the block 313 to gradually close the port of the hoop 32, thereby finally achieving the tightening of the matching portion 11 and the hump portion 23.

[0077] It can be understood that before the exhaust pipe assembly 100 is assembled, the bolts 311 are in a loosened state.

[0078] The utility model also provides a vehicle.

[0079] According to the vehicle of the embodiment of the utility model, there is provided with the exhaust pipe assembly 100 in any of the above embodiments, and the matching portion 11 of the first tube body 1 and the hump portion 23 of the second tube body 2 are pressed and fixed by arranging the hoop structure 3, and the first anti-rotation portion 12 and the first matching portion 211 are arranged to be plugged and limited along the circumferential direction to prevent the first tube body 1 and the second tube body 2 from rotating relative to each other to affect the assembly, thereby achieving a stable connection between the first tube body 1 and the second tube body 2, which is beneficial to the rapid assembly and positioning of the exhaust pipe and improves the assembly efficiency. The vehicle has a simple structure and a small size, and can be flexibly arranged in the layout space of the automobile chassis to realize the assembly of the whole vehicle and avoid interference with the surrounding components of the chassis, thereby solving the problem that the traditional flange connection structure cannot meet the layout requirements of the whole vehicle due to insufficient chassis layout space.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An exhaust pipe assembly, characterized in that: include: A first tube body and a second tube body, wherein one end of the first tube body is formed with an outwardly turned fitting portion, the second tube body comprises a first tube segment and a second tube segment, the first tube segment or the second tube segment is formed with an outwardly convex hump portion, and the first tube segment is plugged into the first tube body; A hoop structure, the hoop structure comprising a fastener and a hoop, the hoop is formed with a hoop groove, the matching portion and the hump portion both extend into the hoop groove, the fastener is connected to the hoop and is used to press the hoop against the matching portion and the hump portion; A first anti-rotation portion is formed in the first tube body, and a first matching portion is provided in the first tube section. The first anti-rotation portion is plugged into the first matching portion and matched with the first matching portion in a circumferential limiting manner.

2. The exhaust pipe assembly according to claim 1, characterized in that: Also included is a sealing member installed between the mating portion and the hump portion.

3. The exhaust pipe assembly according to claim 2, characterized in that: The sealing member comprises an annular main body and a claw portion, wherein the annular main body is sandwiched between the matching portion and the hump portion, the claw portion is connected to the edge of the annular main body, and the claw portion is pressed against the hump portion or the first pipe section.

4. The exhaust pipe assembly according to claim 3, characterized in that: There are a plurality of the claw portions, and the plurality of the claw portions are spaced apart and distributed in a circumferential direction of the annular main body portion.

5. The exhaust pipe assembly according to claim 3, characterized in that: The claw portion is located at one side edge of the annular main body portion, and a hand-holding portion is provided at the other side edge of the annular main body portion, and the hand-holding portion extends from between the matching portion and the hump portion.

6. The exhaust pipe assembly according to claim 3, characterized in that: The annular main body is provided with a sealing protrusion, which is suitable for pressing against one of the matching portion and the hump portion. The annular main body is formed with a sealing groove at the sealing protrusion which is open toward the other of the matching portion and the hump portion.

7. The exhaust pipe assembly according to any one of claims 1 to 6, characterized in that: One of the first anti-rotation portion and the first matching portion is configured as an inserting protrusion and the other is configured as a limiting opening. The inserting protrusion is inserted and matched with the limiting opening along the axial direction of the first pipe section.

8. The exhaust pipe assembly according to claim 7, characterized in that The limiting opening is formed at one end of the first pipe section away from the second pipe section, and the plug-in protrusion is formed on the inner peripheral wall of the first pipe body.

9. The exhaust pipe assembly according to any one of claims 1 to 6, characterized in that: It also includes a connecting plate, one end of which is connected to the first tube body, and the other end of which is connected to the hoop.

10. A vehicle, characterized in that: An exhaust pipe assembly comprising any one of claims 1-9.

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