A hanging structure for an automobile exhaust system and a vehicle

Abstract

The application provides a hanging structure for an automobile exhaust system and a vehicle, and belongs to the technical field of automobile exhaust systems. The hanging structure for the automobile exhaust system is characterized in that an elastic reinforcing piece is arranged in close contact with the wall of a buffer hole, so that uniform support force is provided when the buffer hole is deformed under stress, and the hanging body is prevented from being excessively stretched or compressed, effectively solving the problem of insufficient durability of the existing hanging structure, significantly prolonging the service life of the entire hanging structure, reducing the vehicle maintenance cost in the later period, ensuring the connection stability of the vehicle body and the exhaust system, and improving the use performance and driving safety of the vehicle. The elastic reinforcing sleeves respectively embedded in the outer periphery of the first mounting hole and the outer periphery of the second mounting hole can provide uniform radial support for the rubber around the holes, limit the rubber around the holes from being excessively stretched or compressed, avoid stress concentration and cracking, and ensure the structural integrity of the two mounting holes and the connection stability of the hooks.

Description

Technical Field

[0001] This application belongs to the field of automotive exhaust system technology, and more specifically, relates to a suspension structure and vehicle for an automotive exhaust system. Background Technology

[0002] The rubber suspension of a car's exhaust system is a key component connecting the exhaust system to the vehicle frame. It not only needs to bear the overall weight of the exhaust system and ensure a reliable connection between the exhaust system and the vehicle frame, but also needs to use its own elastic deformation to achieve the functions of limiting, buffering, and absorbing vibrations. By weakening the vibrations generated during the operation of the exhaust system, as well as the vibrations transmitted to the exhaust system due to road excitation when the vehicle is driving, it reduces the transmission of vibrations to the vehicle frame, ultimately improving the overall comfort of the vehicle.

[0003] However, when a vehicle travels on extremely bumpy roads (such as off-road sections), the vibration amplitude of the exhaust system increases significantly, causing the rubber suspension to withstand tensile and compressive forces far exceeding those under normal operating conditions. Prolonged exposure to such extreme conditions can lead to permanent deformation of the rubber suspension, and in severe cases, even cracking. This not only drastically shortens the lifespan of the rubber suspension but also compromises the installation stability of the exhaust system, causing abnormal vibrations and increased operating noise, further impacting the overall vehicle performance and driving safety. Utility Model Content

[0004] The purpose of this application is to provide a suspension structure and vehicle for an automotive exhaust system, which can effectively extend the service life of the suspension structure, reduce the later maintenance costs of the vehicle, ensure the connection stability between the vehicle body and the exhaust system, and improve the overall performance and driving safety of the vehicle.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: Firstly, a suspension structure for an automotive exhaust system is provided, comprising: The suspension body has a first mounting hole, a second mounting hole, and a buffer hole. The first mounting hole is used to connect with a vehicle body hook, the second mounting hole is used to connect with an exhaust system hook, the first mounting hole and the second mounting hole are spaced apart in the vertical direction, and the buffer hole is located between the first mounting hole and the second mounting hole; and The elastic reinforcement is a closed member that fits snugly against the wall of the buffer hole.

[0006] Existing rubber hangers typically have a hollow structure in the middle. On the one hand, this reduces the overall stiffness of the rubber hanger and enhances its elastic deformation capacity, thereby improving its vibration absorption efficiency. On the other hand, it reduces the amount of rubber material used, effectively reducing material costs while ensuring core performance.

[0007] However, the inventors discovered that when the exhaust system experiences minor vertical vibrations, the rubber suspension can effectively buffer and absorb vibrations through moderate stretching and compression deformation of its central hollow structure. However, when the vehicle travels on extremely bumpy roads, the vibration amplitude of the exhaust system increases significantly, forcing the rubber suspension to withstand stretching and compression far exceeding normal operating conditions. Prolonged exposure to such extreme conditions can lead to permanent deformation of the rubber suspension, and even tearing of the central hollow structure. This not only drastically shortens the lifespan of the rubber suspension, leading to frequent component replacements and increased vehicle maintenance costs, but also compromises the installation stability of the exhaust system, affecting the overall vehicle performance and driving safety.

[0008] The beneficial effects of the suspension structure for an automotive exhaust system provided in this application are as follows: the first and second mounting holes, which are arranged at intervals, meet the connection requirements between the suspension body and the vehicle body and the exhaust system. The buffer hole is located between the first and second mounting holes, making the buffer hole the core structure for buffering the vibration between the exhaust system and the vehicle body. When the vehicle vibrates while driving, the vibration is first transmitted to the second mounting hole through the exhaust system hook, and then acts on the buffer hole. The buffer hole uses its own structural elasticity to undergo tensile or compressive deformation along the vibration direction (mainly the vertical direction), thereby achieving basic buffering of the vibration.

[0009] The elastic reinforcement is a closed component that ensures a complete fit with the wall of the buffer hole. It can provide uniform support when the buffer hole is deformed by force, preventing the hanging body from being excessively stretched or compressed. When the exhaust system jumps and causes the buffer hole to stretch, the elastic reinforcement can disperse the tensile stress through its own elastic deformation, avoiding local stress concentration on the buffer hole wall that could lead to tearing. When the buffer hole is compressed, the elastic reinforcement can limit its excessive contraction, preventing permanent wrinkles or cracks from forming on the hole wall.

[0010] Compared with the prior art, the suspension structure for automotive exhaust systems provided in this application effectively solves the problem of insufficient durability of existing suspension structures, significantly reduces the frequency of replacement of the suspension body due to structural failure, significantly extends the service life of the entire suspension structure, and reduces the later maintenance costs of the vehicle; at the same time, it ensures the connection stability between the vehicle body and the exhaust system, and improves the overall performance and driving safety of the vehicle.

[0011] In conjunction with the first aspect, in one possible implementation, the buffer hole is an elongated hole, and the length direction of the buffer hole is perpendicular to the vertical direction.

[0012] In the above technical solution, the elongated buffer hole is equivalent to increasing the deformation range of the suspension body, thereby increasing the absorption of vibration energy and significantly reducing the transmission rate of vibration to the vehicle body.

[0013] In some embodiments, the two ends of the buffer hole are respectively connected to buffer side holes, the two buffer side holes extend in the vertical direction, and the elastic reinforcement extends into the buffer side holes and fits and connects with the hole wall of the buffer side holes.

[0014] In the above technical solution, by setting buffer side holes extending vertically at both ends of the elongated buffer hole, the suspension body has multi-directional elastic deformation capability to absorb vibration energy in different directions and ensure the connection stability between the vehicle body and the exhaust system.

[0015] In some embodiments, the end of the buffer hole is connected to the middle of the corresponding buffer side hole, and a first limiting part and a second limiting part are formed between the two buffer side holes. The first limiting part is located on the upper side of the buffer hole, and the second limiting part is located on the lower side of the buffer hole.

[0016] In the above technical solution, when the vehicle vibrates violently, causing a significant increase in the deformation of the buffer hole and the elastic reinforcement, the first limiting part can contact and squeeze the second limiting part. At this time, the compression deformation of the first limiting part and the second limiting part can perform secondary buffering of the instantaneous impact force, thereby achieving smooth buffering of extreme vibration.

[0017] In some embodiments, the suspension structure for the automotive exhaust system further includes two elastic reinforcing sleeves, which are respectively embedded in the suspension body and correspondingly fitted around the first mounting hole and the second mounting hole.

[0018] In the above technical solution, two elastic reinforcing sleeves respectively embedded on the outer periphery of the first mounting hole and the outer periphery of the second mounting hole can provide uniform radial support when the rubber around the hole is about to undergo excessive deformation, thereby limiting the rubber around the hole from being excessively stretched or compressed, avoiding stress concentration and cracking, and ensuring the structural integrity of the two mounting holes and the stability of their connection with the hook.

[0019] In some embodiments, the elastic reinforcing sleeve has a radially protruding extension, the extension corresponding to the first mounting hole being embedded in the first limiting portion, and the extension corresponding to the second mounting hole being embedded in the second limiting portion.

[0020] In the above technical solution, the extension provides elastic support for the first or second limiting part, preventing the first or second limiting part from being excessively stretched or compressed when the buffer hole deforms, thus increasing the long-term stability of the rubber on both sides of the buffer hole; the radial load of the hook borne by the first and second mounting holes can be transmitted to the corresponding first or second limiting part through the extension, and then transmitted to a larger range of the hanging body using the elastic reinforcement, thus avoiding fatigue damage to the rubber around the first and second mounting holes.

[0021] In some embodiments, the buffer hole and the two buffer edge holes are respectively transitioned by rounded corners, and the extension is provided with a convex corner corresponding to the rounded corner.

[0022] In the above technical solution, after the convex corner is embedded with the extension, it can fit tightly with the rubber at the rounded corner transition. Under the action of vibration load, the elastic support of the convex corner will disperse the stress at the rounded corner to the extension, thus preventing the rubber at this point from cracking.

[0023] In some embodiments, the outer peripheral wall of the suspension body is provided with a circumferentially extending annular groove, and the suspension structure for the automobile exhaust system further includes an annular elastic band, which is sleeved on the outer periphery of the suspension body and disposed within the annular groove.

[0024] In the above technical solution, the annular elastic band can form a wrapping restraint on the suspension body, directly preventing the suspension body from being overstretched. The annular groove can form circumferential and axial restraint on the annular elastic band, preventing the annular elastic band from falling off the suspension body.

[0025] In some embodiments, a plurality of snap-fit ​​pieces are connected to the hanging body, the snap-fit ​​pieces being located on the radial periphery of the annular elastic band, and the plurality of snap-fit ​​pieces being spaced apart circumferentially along the hanging body.

[0026] In the above technical solution, the snap-fit ​​tabs form a physical barrier on the radial periphery of the annular elastic band, directly preventing the annular elastic band from detaching from the annular groove. The circumferentially spaced snap-fit ​​tabs not only achieve full circumferential anti-detachment of the annular elastic band, but also do not completely enclose the outer space of the annular elastic band, facilitating the installation and subsequent replacement of the annular elastic band.

[0027] Secondly, embodiments of this application also provide a vehicle, including the aforementioned suspension structure for an automotive exhaust system.

[0028] The vehicle provided in this application embodiment, having included the aforementioned suspension structure for an automotive exhaust system, possesses all the beneficial effects of such a suspension structure: it can provide uniform support force when the buffer hole is deformed by the elastic reinforcing member, preventing the suspension body from being excessively stretched or compressed, thereby extending the service life of the suspension structure, ensuring the connection stability between the vehicle body and the exhaust system, and improving the overall vehicle performance and driving safety. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the installation state of a suspension structure for an automotive exhaust system provided in an embodiment of this application; Figure 2 This is a schematic diagram of a suspension structure for an automotive exhaust system provided in an embodiment of this application; Figure 3 Examples of this application Figure 2 A schematic diagram of the cross-sectional structure; Figure 4 This is a schematic diagram of another embodiment of a suspension structure for an automotive exhaust system provided in this application. Figure 5 Examples of this application Figure 4 A cross-sectional structural diagram.

[0031] In the picture: 1. Suspension body; 11. First mounting hole; 12. Second mounting hole; 13. Buffer hole; 131. Rounded corner; 14. Buffer edge hole; 15. First limiting part; 16. Second limiting part; 17. Annular groove; 18. Snap-fit ​​piece; 2. Elastic reinforcement; 3. Elastic reinforcement sleeve; 31. Extension part; 311. Convex corner; 4. Annular elastic band; 10. Body hook; 20. Exhaust system hook. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when an element is referred to as being "set on" another element, it can be directly on or indirectly on that other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and are not intended to 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 application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a few" means two or more, unless otherwise explicitly specified.

[0035] For ease of description, the directions or positional relationships indicated by "front," "rear," "up," and "down" in this embodiment are based on the vehicle's own orientation. Specifically, the front of the vehicle represents "front," the rear of the vehicle represents "rear," the top of the vehicle represents "up," and the bottom of the vehicle represents "down." It is understood that the front-rear direction of the vehicle body defined in the embodiments of this application refers to the front-rear direction of the vehicle's forward movement; the left-right direction of the vehicle body refers to the left-right direction of the vehicle's forward movement; and the up-down direction of the vehicle body refers to the up-down direction of the vehicle's forward movement.

[0036] In existing automotive exhaust system designs, rubber suspensions, as key components connecting the exhaust system and the vehicle frame, not only bear the overall weight of the exhaust system and ensure the reliability of the connection between the exhaust system and the vehicle frame, but also use their elastic deformation to achieve limiting, buffering, and vibration absorption. By reducing the vibrations generated during the operation of the exhaust system, as well as the vibrations transmitted to the exhaust system due to road surface excitation when the vehicle is driving, the transmission of vibrations to the vehicle frame is reduced, ultimately improving the overall vehicle comfort.

[0037] To optimize the above functions and control production costs, existing rubber hangers typically have a hollow structure in the middle. On the one hand, this reduces the overall stiffness of the rubber hanger and enhances its elastic deformation capacity, thereby improving the efficiency of vibration absorption; on the other hand, it reduces the amount of rubber material used, effectively reducing material costs while ensuring core performance.

[0038] The inventors discovered that when a vehicle travels on a normal road surface, slight unevenness or fluctuations in the exhaust system's own weight can cause minor vertical vibrations. In this situation, the rubber suspension can effectively buffer and absorb vibrations through the moderate stretching and compression deformation of its central hollow structure, maintaining the relative stability of the exhaust system. However, when the vehicle travels on extremely bumpy roads (such as off-road sections), the vibration amplitude of the exhaust system increases significantly, forcing the rubber suspension to withstand stretching and compression far exceeding normal operating conditions. Prolonged exposure to such extreme conditions can lead to permanent deformation of the rubber suspension, and even tearing of the central hollow structure. This not only drastically shortens the lifespan of the rubber suspension, leading to frequent component replacements and increased vehicle maintenance costs, but also compromises the installation stability of the exhaust system, causing abnormal vibrations and increased operating noise, further affecting the overall vehicle performance and driving safety.

[0039] To resolve the above issues, please refer to the following: Figures 1 to 5 This application describes a suspension structure for an automotive exhaust system and a vehicle thereof. The suspension structure for the automotive exhaust system includes a suspension body 1 and an elastic reinforcing member 2. The suspension body 1 has a first mounting hole 11, a second mounting hole 12, and a buffer hole 13. The first mounting hole 11 is used to connect to a vehicle body hook 10, and the second mounting hole 12 is used to connect to an exhaust system hook 20. The first mounting hole 11 and the second mounting hole 12 are spaced apart in the vertical direction. The buffer hole 13 is located between the first mounting hole 11 and the second mounting hole 12. The elastic reinforcing member 2 is a closed ring-shaped component and is fitted and connected to the wall of the buffer hole 13.

[0040] This application provides a suspension structure for an automotive exhaust system. The first mounting hole 11 and the second mounting hole 12, which are arranged at intervals, meet the connection requirements between the suspension body 1 and the vehicle body and the exhaust system. The buffer hole 13 is located between the first mounting hole 11 and the second mounting hole 12, making the buffer hole 13 the core structure for buffering the vibration between the exhaust system and the vehicle body. When the vehicle vibrates while driving, the vibration is first transmitted to the second mounting hole 12 through the exhaust system hook 20, and then acts on the buffer hole 13. The buffer hole 13 uses its own structural elasticity to undergo tensile or compressive deformation along the vibration direction (mainly the vertical direction), thereby achieving basic buffering of the vibration.

[0041] Based on this, the elastic reinforcing member 2 is a closed ring-shaped component, ensuring that it is fully fitted and connected to the wall of the buffer hole 13. It can provide uniform support force when the buffer hole 13 is subjected to deformation, preventing the hanging body 1 from being excessively stretched or compressed. When the exhaust system jumps and causes the buffer hole 13 to stretch, the elastic reinforcing member 2 can disperse the tensile stress through its own elastic deformation, avoiding local stress concentration on the wall of the buffer hole 13 that could lead to tearing. When the buffer hole 13 is compressed, the elastic reinforcing member 2 can limit its excessive contraction, preventing permanent wrinkles or cracks from forming on the hole wall.

[0042] Compared with the prior art, the suspension structure for automotive exhaust systems provided in this application effectively solves the problem of insufficient durability of existing suspension structures, significantly reduces the frequency of replacement of the suspension body 1 due to structural failure, significantly extends the service life of the entire suspension structure, and reduces the later maintenance costs of the vehicle; at the same time, it ensures the connection stability between the vehicle body and the exhaust system, and improves the overall performance and driving safety of the vehicle.

[0043] It should be noted that the suspension body 1 is made of rubber, possessing good elasticity. The elastic reinforcing member 2 also has a certain elastic deformation capacity. While providing rigid support for the buffer hole 13, it does not damage the overall elastic characteristics of the suspension body 1. When the vehicle vibrates, the elastic reinforcing member 2 and the buffer hole 13 work together to buffer the vibration. The fitting design between the elastic reinforcing member 2 and the hole wall of the buffer hole 13 can also optimize the stress distribution of the hole wall. When the buffer hole 13 deforms, the elastic reinforcing member 2 will disperse the locally concentrated stress on the hole wall to a larger area, reducing fatigue damage caused by excessive local stress on the hole wall, thereby slowing down the aging rate of the buffer hole 13 and enabling the buffer hole 13 to maintain stable elastic deformation capacity over a longer service life.

[0044] In this embodiment, for ease of processing, the elastic reinforcing member 2 is made of bent metal sheet, specifically spring steel or stainless steel, etc. It is necessary to balance the rigidity and elasticity of the elastic reinforcing member 2 to ensure effective cushioning performance while providing reliable support for the buffer hole 13. Simultaneously, the elastic reinforcing member 2 made of metal sheet can better adapt to the high-temperature environment near the exhaust system, ensuring the working performance of the elastic reinforcing member 2. The elastic reinforcing member 2 can be integrally formed with the hanging body 1 through a vulcanization process. Before the hanging body 1 is vulcanized, the pre-made metal elastic reinforcing member 2 is fixed in the mold cavity of the buffer hole 13 to ensure a good fit between the elastic reinforcing member 2 and the buffer hole 13 after molding.

[0045] It is understood that the elastic reinforcing member 2 in this embodiment has good versatility. The specific shape of the elastic reinforcing member 2 can be set according to the hollow shape of the existing rubber hanger. Then, the elastic reinforcing member 2 can be attached to the existing hollow structure by vulcanization bonding to ensure that the elastic reinforcing member 2 is effectively attached to the inner wall of the hollow structure, thereby realizing the structural improvement of the existing rubber hanger and extending its service life.

[0046] The connection between the elastic reinforcing member 2 and the hanging body 1 can be integrated into the production process of the hanging body 1 without adding complicated assembly steps, without significantly increasing production costs, and is easy to achieve industrialized mass production.

[0047] Specifically, the vertical cross-section of the suspension body 1 is elliptical. The first mounting hole 11 and the second mounting hole 12 are both located on the vertical major axis of the suspension body 1 and are symmetrically arranged vertically to ensure overall force balance. Both ends of the first mounting hole 11 and the second mounting hole 12 are chamfered to facilitate assembly with the vehicle body hook 10 and the exhaust system hook 20. A buffer hole 13 is located between the first mounting hole 11 and the second mounting hole 12. Specifically, it can be a circle, a long strip, or a polygon symmetrical about the line connecting the center points of the first mounting hole 11 and the second mounting hole 12. This symmetrical arrangement of the buffer hole 13 about the line connecting the center points of the two mounting holes not only improves the overall aesthetics of the suspension structure but also ensures that the buffer hole 13 has the same deformation capacity on both sides of the line connecting the center points, thus increasing the stability of the buffering effect. Simultaneously, the elastic reinforcing member 2 is also a corresponding circle, long strip, or polygon; the specific shape is not limited here, as long as the shape and dimensions of the elastic reinforcing member 2 are completely compatible with the shape and dimensions of the buffer hole 13.

[0048] In some embodiments, the buffer hole 13 may be as follows: Figure 2 and Figure 3 The structure shown. Please refer to [link / reference]. Figure 2 and Figure 3 The buffer hole 13 is an elongated hole, and the length direction of the buffer hole 13 is perpendicular to the vertical direction. When the hanging body 1 is elliptical, the first mounting hole 11 and the second mounting hole 12 are spaced apart along the major axis of the elliptical hanging body 1, and the elongated buffer hole 13 extends along the minor axis of the elliptical hanging body 1.

[0049] Specifically, the length of the elongated buffer hole 13 is greater than half the length of the minor axis of the elliptical hanging body 1 and less than two-thirds of the length of the minor axis of the elliptical hanging body 1. For example, if the length of the minor axis of the elliptical hanging body 1 is 15mm, the length of the buffer hole 13 can be 8mm-9mm.

[0050] The buffer hole 13 absorbs vibrations by utilizing its own elastic deformation, thereby reducing the transmission of vibrations from the exhaust system to the vehicle body through the suspension structure. When the exhaust system bounces up and down due to road bumps, the vibration is transmitted to the vehicle body along the path of the second mounting hole 12 - buffer hole 13 - first mounting hole 11. The elongated buffer hole 13 effectively increases the deformation range of the suspension body 1, thereby increasing the absorption of vibration energy and significantly reducing the transmission rate of vibration to the vehicle body along the aforementioned path.

[0051] Based on this, the conformal fit between the elastic reinforcing member 2 and the buffer hole 13 not only protects the buffer hole 13 from excessive stretching or compression, but also compensates for the weakening of connection strength caused by the extension of the length of the buffer hole 13, thus ensuring the stability of the hanging structure.

[0052] In some embodiments, see Figure 2 and Figure 3 The buffer hole 13 is connected to the buffer side hole 14 at both ends. The two buffer side holes 14 extend in the vertical direction, and the elastic reinforcing member 2 extends into the buffer side hole 14 and fits and connects with the hole wall of the buffer side hole 14.

[0053] During actual vehicle operation, vibrations from bumpy roads are irregular. The exhaust system not only bounces up and down but also veers left and right (such as when one wheel goes over a bump) or sways back and forth (such as when the vehicle accelerates or decelerates rapidly). Under these circumstances, the suspension structure connecting the vehicle body and the exhaust system needs to withstand both horizontal torsional loads and vertical tensile or compressive loads.

[0054] In the above embodiment, the elongated buffer hole 13 is mainly used to buffer the vibration of the exhaust system in the vertical direction. In this embodiment, by setting buffer side holes 14 extending vertically at both ends of the elongated buffer hole 13, the suspension body 1 has multi-directional elastic deformation capability to absorb vibration energy in different directions and ensure the connection stability between the vehicle body and the exhaust system.

[0055] The elastic reinforcing member 2 is attached to the wall of the interconnected buffer hole 13 and buffer side hole 14. It can undergo slight torsion synchronously with the buffer hole 13 and buffer side hole 14, and dissipate part of the torsional energy through the elastic deformation of its own metal sheet. At the same time, the annular structure of the elastic reinforcing member 2 can evenly transmit the torsional stress along the entire circumference of the hole wall, avoiding excessive twisting of the buffer hole 13 and buffer side hole 14 and tearing.

[0056] It should be understood that the buffer edge hole 14 extends in the vertical direction, which means that the buffer edge hole 14 is an elongated hole, and its length direction is roughly parallel to the vertical direction. It can form a small angle (such as 3° or 5°) with the vertical direction. Optionally, the buffer edge hole 14 extends in an arc along the outer periphery of the hanging body 1 to fit the elliptical outline of the hanging body 1 and improve the aesthetics.

[0057] The annular structure of the elastic reinforcement 2 is determined by the specific shapes of the buffer hole 13 and the buffer side hole 14. For example, the buffer side hole 14 can extend upward from one end of the buffer hole 13, and the two buffer side holes 14 and the buffer hole 13 form a "U" shaped structure. Correspondingly, the elastic reinforcement 2 is also a matching "U" shaped structure. The buffer side hole 14 can also extend to the upper and lower sides of the buffer hole 13 respectively, and the two buffer side holes 14 and the buffer hole 13 form a horizontal "I" shaped structure. Correspondingly, the elastic reinforcement 2 is also a matching horizontal "I" shaped structure. The specific dimensions can be determined according to the actual size of the hanging body 1.

[0058] In some embodiments, see Figure 2 and Figure 3 The end of the buffer hole 13 is connected to the middle of the corresponding buffer side hole 14. A first limiting part 15 and a second limiting part 16 are formed between the two buffer side holes 14. The first limiting part 15 is located on the upper side of the buffer hole 13, and the second limiting part 16 is located on the lower side of the buffer hole 13.

[0059] In this embodiment, the upper and lower ends of the buffer side hole 14 are symmetrically located on the upper and lower sides of the buffer hole 13, so that the two buffer side holes 14 and the buffer hole 13 together form a horizontal "I" shaped structure with vertical symmetry. This not only improves the overall aesthetics of the hanging structure, but also makes the hanging body 1 have a more flexible elastic deformation capability, and better buffers vibrations in different directions.

[0060] Two buffer side holes 14 are symmetrically arranged vertically, so that the two sides of the buffer hole 13 form a first limiting part 15 and a second limiting part 16 respectively. The vertical distance between the first limiting part 15 and the second limiting part 16 is the width of the buffer hole 13. This distance provides sufficient deformation space for the buffer hole 13 and the buffer side holes 14 to ensure effective buffering of vibrations generated under normal working conditions.

[0061] When a vehicle travels on a severely bumpy road (such as an off-road pothole), the impact force of the vertical vibration greatly compresses the suspension body 1, and the deformation of the buffer hole 13 and the elastic reinforcement 2 increases significantly. The first limiting part 15 can contact and squeeze with the second limiting part 16. At this time, the compression deformation of the first limiting part 15 and the second limiting part 16 can provide secondary buffering of the instantaneous impact force. At the same time, the elastic reinforcement 2 will also continuously transmit the vibration stress to the buffer side holes 14 at both ends. This not only achieves stable buffering of extreme vibration, but also avoids the vibration impact from causing compression damage to the suspension body 1, thus improving the overall shock absorption efficiency of the suspension structure.

[0062] As a modified embodiment of the suspension structure for an automotive exhaust system, please refer to Figure 4 and Figure 5 The suspension structure for the automotive exhaust system also includes two elastic reinforcing sleeves 3, which are respectively embedded in the suspension body 1 and are respectively fitted around the first mounting hole 11 and the second mounting hole 12.

[0063] The first mounting hole 11 and the second mounting hole 12 serve as the core connection between the suspension body 1 and the vehicle body hook 10 and the exhaust system hook 20. They need to withstand the radial compression of the hook, the reciprocating pull caused by vibration, and the continuous load of the exhaust system weight for a long time. This can easily lead to excessive stretching or compression of the rubber around the holes, which in turn can cause problems such as cracking and permanent deformation of the rubber of the suspension body 1.

[0064] In this embodiment, the elastic reinforcing sleeve 3 is the same as the elastic reinforcing member 2, also a closed ring structure made of bent metal sheet, possessing both rigid support and elastic deformation capabilities. The two elastic reinforcing sleeves 3, respectively embedded around the first mounting hole 11 and the second mounting hole 12, provide uniform radial support when the rubber around the holes is about to undergo excessive deformation, thereby limiting excessive stretching or compression of the rubber around the holes, preventing stress concentration and cracking, and ensuring the structural integrity of the two mounting holes and the stability of their connection with the hook. Simultaneously, the elastic deformation characteristics of the two elastic reinforcing sleeves 3 can work synergistically with the central elastic reinforcing sleeve 3 to jointly resist vibration impact and prevent vibration from being transmitted to the vehicle body through the first mounting hole 11.

[0065] For some possible implementations, please refer to Figure 4 The elastic reinforcing sleeve 3 has a radially protruding extension 31. The extension 31 corresponding to the first mounting hole 11 is embedded in the first limiting part 15, and the extension 31 corresponding to the second mounting hole 12 is embedded in the second limiting part 16.

[0066] By engaging the extension 31 with the corresponding first limiting part 15 or second limiting part 16, a complementary support structure is formed. Specifically, the extension 31 provides elastic support for the first limiting part 15 or second limiting part 16, preventing the first limiting part 15 or second limiting part 16 from being excessively stretched or compressed when the buffer hole 13 deforms, thus increasing the long-term stability of the rubber on both sides of the buffer hole 13. The radial load of the hook borne by the first mounting hole 11 and the second mounting hole 12 can be transmitted to the corresponding first limiting part 15 or second limiting part 16 through the extension 31, and then transmitted to a larger range of the hanging body 1 using the elastic reinforcing member 2, thus avoiding fatigue damage to the rubber around the first mounting hole 11 and the second mounting hole 12.

[0067] Specifically, the radially protruding extension 31 refers to the extension 31 being part of the annular structure of the elastic reinforcing sleeve 3, but it protrudes eccentrically toward the buffer hole 13.

[0068] For some possible implementations, please refer to Figure 4 The buffer hole 13 and the two buffer edge holes 14 are respectively connected by a rounded corner 131, and the extension 31 is provided with a convex corner 311 corresponding to the rounded corner 131.

[0069] In this embodiment, the extension 31 includes a straight section and two bent sections. The straight section is close to the buffer hole 13 and parallel to the length direction of the buffer hole 13. The two ends of the straight section are connected to the rest of the elastic reinforcing sleeve 3 through the bent sections. The convex corner 311 is disposed between the straight section and the bent section and protrudes towards the rounded corner 131 on the corresponding side.

[0070] Four transition radii 131 are formed between the buffer hole 13 and the two buffer side holes 14, which can disperse the stress concentration at the junction of the two holes and avoid fatigue damage to the rubber at the corner. The convex corner 311 on the extension 31 can form a precise complementary support with the radii 131 area, which strengthens the structural stability of this weak area: on the one hand, after the convex corner 311 is embedded with the extension 31, it can fit tightly with the rubber at the transition of the radii 131. Under the action of vibration load, the elastic support of the convex corner 311 disperses the stress at the radii 131 to the extension 31, preventing the rubber at this place from cracking; on the other hand, the shape matching of the convex corner 311 and the radii 131 can limit the excessive deformation at the junction of the two holes. When the buffer hole 13 and the buffer side hole 14 are stretched or compressed due to vibration, the convex corner 311 can provide uniform support along the arc direction of the radii 131, preventing the rubber at the radii 131 from permanent deformation due to excessive bending.

[0071] For some specific embodiments, please refer to Figure 1 , Figure 3 and Figure 5 The outer peripheral wall of the suspension body 1 is provided with a circumferentially extending annular groove 17. The suspension structure for the automobile exhaust system also includes an annular elastic band 4, which is sleeved on the outer periphery of the suspension body 1 and located in the annular groove 17.

[0072] When the suspension body 1 tends to be overstretched due to vibration from the exhaust system or load tension, a radial expansion force will be generated on the annular elastic band 4 surrounding it. At this time, the annular elastic band 4 can generate a reverse radial contraction constraint force due to its own elasticity, thereby forming a wrapping restraint on the suspension body 1, directly preventing the suspension body 1 from being overstretched and avoiding permanent deformation or cracking of the rubber of the suspension body 1 due to exceeding its elastic limit. Specifically, the annular elastic band 4 is usually made of high-strength polyester filament braided tape to ensure that it has good flexibility.

[0073] The annular groove 17 provides circumferential and axial restraint for the annular elastic band 4, preventing it from detaching from the suspension body 1 and ensuring it remains stably attached to the outer periphery of the suspension body 1. The depth and width of the annular groove 17 are matched to the dimensions of the annular elastic band 4, preventing it from being stretched or excessively loosened under normal conditions, thus ensuring it can properly perform its restraint and protection function.

[0074] In some embodiments, please refer to Figure 1 , Figure 3 and Figure 5 The hanging body 1 is connected to several snap-fit ​​pieces 18, which are located on the radial periphery of the annular elastic band 4. The snap-fit ​​pieces 18 are arranged at intervals along the circumference of the hanging body 1.

[0075] The snap-fit ​​tabs 18 form a physical barrier on the radial periphery of the annular elastic band 4, directly preventing the annular elastic band 4 from coming out of the annular groove 17 and ensuring that it is always in the preset working position. The several snap-fit ​​tabs 18 arranged circumferentially not only achieve full circumferential anti-fall-off of the annular elastic band 4, but also do not completely seal the outer space of the annular elastic band 4, which facilitates the installation and subsequent replacement of the annular elastic band 4.

[0076] Specifically, the snap-fit ​​piece 18 is integrally formed with the hanging body 1. One end of it is connected to one side wall of the annular groove 17, and the other end extends to the other side wall of the annular groove 17 while maintaining a certain gap, so as to effectively prevent the annular elastic band 4 from falling off, without affecting the installation and disassembly of the annular elastic band 4.

[0077] Based on the same inventive concept, embodiments of this application also provide a vehicle, including the aforementioned suspension structure for an automotive exhaust system.

[0078] The vehicle provided in this application embodiment, having the aforementioned suspension structure for automotive exhaust systems, possesses all the beneficial effects of such a suspension structure: the elastic reinforcing member 2 provides uniform support force when the buffer hole 13 is deformed by force, preventing the suspension body 1 from being excessively stretched or compressed, thereby extending the service life of the suspension structure, ensuring the connection stability between the vehicle body and the exhaust system, and improving the overall vehicle performance and driving safety.

[0079] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A suspension structure for an automotive exhaust system, characterized in that, include: The suspension body (1) has a first mounting hole (11), a second mounting hole (12), and a buffer hole (13). The first mounting hole (11) is used to connect with a vehicle body hook (10), and the second mounting hole (12) is used to connect with an exhaust system hook (20). The first mounting hole (11) and the second mounting hole (12) are spaced apart in the vertical direction, and the buffer hole (13) is located between the first mounting hole (11) and the second mounting hole (12). The elastic reinforcing member (2) is a closed ring-shaped member and is attached to the wall of the buffer hole (13).

2. The suspension structure for an automotive exhaust system as described in claim 1, characterized in that, The buffer hole (13) is an elongated hole, and the length direction of the buffer hole (13) is perpendicular to the up and down direction.

3. The suspension structure for an automotive exhaust system as described in claim 2, characterized in that, The buffer hole (13) is connected to buffer side holes (14) at both ends. The two buffer side holes (14) extend in the vertical direction. The elastic reinforcing member (2) extends into the buffer side hole (14) and fits and connects with the hole wall of the buffer side hole (14).

4. The suspension structure for an automotive exhaust system as described in claim 3, characterized in that, The end of the buffer hole (13) is connected to the middle of the corresponding buffer side hole (14), and a first limiting part (15) and a second limiting part (16) are formed between the two buffer side holes (14). The first limiting part (15) is located on the upper side of the buffer hole (13), and the second limiting part (16) is located on the lower side of the buffer hole (13).

5. The suspension structure for an automotive exhaust system as described in claim 4, characterized in that, The suspension structure for the automotive exhaust system also includes two elastic reinforcing sleeves (3), which are respectively embedded in the suspension body (1) and are fitted around the first mounting hole (11) and the second mounting hole (12) in a corresponding manner.

6. The suspension structure for an automotive exhaust system as described in claim 5, characterized in that, The elastic reinforcing sleeve (3) has a radially protruding extension (31). The extension (31) corresponding to the first mounting hole (11) is embedded in the first limiting part (15), and the extension (31) corresponding to the second mounting hole (12) is embedded in the second limiting part (16).

7. The suspension structure for an automotive exhaust system as described in claim 6, characterized in that, The buffer hole (13) and the two buffer side holes (14) are respectively connected by rounded corners (131), and the extension (31) is provided with a convex corner (311) corresponding to the rounded corner (131).

8. The suspension structure for an automotive exhaust system as described in claim 1, characterized in that, The outer peripheral wall of the suspension body (1) is provided with a circumferentially extending annular groove (17). The suspension structure for the automobile exhaust system also includes an annular elastic band (4). The annular elastic band (4) is sleeved on the outer periphery of the suspension body (1) and is located in the annular groove (17).

9. The suspension structure for an automotive exhaust system as described in claim 8, characterized in that, The hanging body (1) is connected to a plurality of snap-fit ​​pieces (18), the snap-fit ​​pieces (18) are located on the radial periphery of the annular elastic band (4), and the plurality of snap-fit ​​pieces (18) are arranged at intervals along the circumference of the hanging body (1).

10. A vehicle, characterized in that, Including the suspension structure for an automotive exhaust system as described in any one of claims 1-9.

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