Top rubber assembly, top seat assembly, air spring and vehicle

Abstract

The utility model relates to a top rubber assembly, a top seat assembly, an air spring and a vehicle, the top rubber assembly comprises a top rubber inner ring and a top rubber main body, the top rubber inner ring is provided with a connecting part, and the connecting part extends in the circumferential direction of the top rubber inner ring; the top rubber main body surrounds the top rubber inner ring, an inserting groove is formed in the inner circumferential wall of the top rubber main body, and at least part of the connecting part is inserted into the inserting groove; one of the side wall of the inserting groove and the side wall of the connecting part is provided with a convex part, the other one is provided with a concave part, and the convex part extends into the concave part to limit the connecting part to be separated from the inserting groove in the radial direction of the top rubber inner ring. The convex part is arranged on one of the side wall of the inserting groove and the side wall of the connecting part, the concave part is arranged on the other side, and the convex part and the concave part are matched to effectively limit the connecting part from being separated from the inserting groove in the radial direction of the top rubber inner ring, so that the connection stability between the top rubber inner ring and the top rubber main body is enhanced; and the connection stability of the top rubber assembly and the reliability of the whole structure are enhanced, so that the performance and the safety of the air spring are improved.

Description

Technical Field

[0001] This application relates to the technical field of energy storage for vehicle accessories, and particularly to a top rubber component, a top seat assembly, an air spring, and a vehicle. Background Art

[0002] An air spring is an elastic element that uses compressed air as the working medium. It realizes the functions of elastic support and shock absorption by controlling the gas pressure, and is widely used in vehicle suspension systems, and can also be used in industrial equipment, medical devices, aerospace and other fields.

[0003] The top rubber of an air spring refers to the rubber component installed at the top of the air spring. Its main functions are to provide additional elastic support and sealing, buffer the impact between the spring and the suspension structure, reduce vibration and noise, and ensure that the compressed air in the air spring chamber does not leak. To enhance the structural stability, the top rubber usually includes an inner ring of the top rubber, which is a ring structure made of metal or other hard materials inside the top rubber. As a transition piece between the top rubber and the piston rod, it provides structural support. Under long-term use or extreme working conditions, the top rubber may fall off from the inner ring of the top rubber, resulting in the failure of the top rubber component and affecting the performance and safety of the air spring. Summary of the Utility Model

[0004] The embodiments of this application provide a top rubber component, a top seat assembly, an air spring, and a vehicle, which enhance the connection stability of the top rubber component and the reliability of the overall structure, so as to at least partially solve the above technical problems.

[0005] To achieve the above object, according to the first aspect of this application, a top rubber component for an air spring is provided, including:

[0006] An inner ring of the top rubber, provided with a connecting portion, and the connecting portion extends along the circumferential direction of the inner ring of the top rubber; and,

[0007] A main body of the top rubber, surrounding the outer side of the inner ring of the top rubber, and an insertion groove is provided on the inner peripheral wall of the main body of the top rubber, and at least a part of the connecting portion is inserted into the insertion groove;

[0008] One of the side walls of the insertion groove and the side wall of the connecting portion is provided with a convex portion, and the other is provided with a concave portion, and the convex portion extends into the concave portion to limit the connecting portion from disengaging from the insertion groove along the radial direction of the inner ring of the top rubber.

[0009] Optionally, the connecting portion includes a main body portion and an insertion portion surrounding and connecting to the outside of the main body portion. Along the radial direction of the inner ring of the top rubber, at least one side of the opposite sides of the insertion portion protrudes from the connecting portion, so as to form the concave portion at the main body portion;

[0010] The plug-in part and at least part of the main body part are inserted into the plug-in groove. Along the radial direction of the inner ring of the top rubber, at least one of the two opposite side walls of the plug-in groove is correspondingly provided with a convex part, and the convex part is used to prevent the plug-in part from disengaging from the plug-in groove.

[0011] Optionally, the inner ring of the top rubber further includes a socket part, and the main body part is circumferentially connected to the outside of the socket part. Along the radial direction of the inner ring of the top rubber, at least one of the two opposite sides of the socket part protrudes beyond the main body part.

[0012] Optionally, the socket part surrounds to form a mounting hole for passing through a piston rod. The inner wall of the mounting hole is provided with a first mounting groove for mounting a first sealing ring.

[0013] Optionally, along the radial direction of the inner ring of the top rubber, at least one of the two opposite sides of the top rubber main body is provided with a groove.

[0014] Optionally, the top rubber assembly has a first dimension in the radial direction of the inner ring of the top rubber, and the top rubber assembly has a second dimension in the axial direction of the inner ring of the top rubber, and the first dimension is greater than the second dimension.

[0015] Optionally, the first dimension is greater than or equal to 1.5 times the second dimension.

[0016] Optionally, the top rubber assembly further includes an outer ring of the top rubber, and the outer ring of the top rubber is circumferentially connected to the outside of the top rubber main body.

[0017] According to the second aspect of the present application, there is provided a top seat assembly, including:

[0018] The top rubber assembly as described above; and,

[0019] A seat body, the seat body is provided with a through hole, the top rubber assembly is arranged in the through hole and is hermetically connected to the seat body.

[0020] Optionally, the inner wall of the through hole is provided with a receiving groove, the outer peripheral edge of the top rubber assembly is inserted into the receiving groove, and along the radial direction of the inner ring of the top rubber, both opposite sides of the top rubber main body abut against the side walls of the receiving groove.

[0021] Optionally, a second mounting groove is provided at the bottom of the receiving groove, and the top seat assembly further includes a second sealing ring installed in the second mounting groove to seal the top rubber assembly and the seat body.

[0022] Optionally, the seat body includes a seat main body and a cover plate that are separately arranged and fixedly connected;

[0023] The through hole includes a first through hole and a second through hole that are separately arranged in the axial direction of the through hole. The first through hole is provided in the seat body, and the second through hole is provided in the cover plate.

[0024] A first notch is provided on one side of the seat body facing the cover plate, and a second notch is provided on one side of the cover plate facing the seat body. The first notch and the second notch communicate with each other to form the receiving groove.

[0025] Optionally, a first through hole is provided on the cover plate, and a first insertion hole is provided on the seat body. The first insertion hole and the first through hole are used for passing a first fastener to realize the fixed connection between the cover plate and the seat body.

[0026] Optionally, a second through hole is provided on the cover plate, and a second insertion hole is provided on the seat body. The second insertion hole and the second through hole are used for passing a second fastener to connect the cover plate and the seat body to the vehicle body.

[0027] According to a third aspect of the present application, an air spring is provided, including:

[0028] The top seat assembly as described above, and,

[0029] A piston rod;

[0030] The top rubber inner ring is sleeved on the circumferential side of the piston rod.

[0031] According to a fourth aspect of the present application, a vehicle is provided, including the air spring as described above.

[0032] In the top rubber assembly of the embodiment of the present application, by providing a convex portion on one of the side walls of the insertion slot and the side wall of the connecting portion, and a concave portion on the other side, the cooperation between the convex portion and the concave portion effectively restricts the connecting portion from disengaging from the insertion slot in the radial direction of the top rubber inner ring, enhances the connection stability between the top rubber inner ring and the top rubber main body, enhances the connection firmness of the top rubber assembly and the reliability of the overall structure, thereby improving the performance and safety of the air spring.

[0033] Other features and advantages of the present application will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] To more fully understand the present application and its beneficial effects, the following description will be made in conjunction with the accompanying drawings, where the same reference numerals in the following description represent the same parts.

[0036] Figure 1 is a schematic structural view of a top rubber component provided in an exemplary embodiment of the present disclosure;

[0037] Figure 2 is Figure 1 an enlarged schematic view of a partial A in

[0038] Figure 3 is a schematic structural view of a top seat assembly provided in an exemplary embodiment of the present disclosure;

[0039] Figure 4 is Figure 3 a schematic structural view of a seat body in

[0040] Figure 5 is Figure 4 a schematic structural view of a seat body in

[0041] Figure 6 is Figure 5 a schematic structural view of a cover plate in

[0042] Description of reference numerals:

[0043] 100, top seat assembly; 10, top rubber component; 1, inner top rubber ring; 11, mounting hole; 12, main body part; 13, insertion part; 14, socket part; 15, connecting part; 151, concave part; 141, first mounting groove; 2, top rubber main body; 21, insertion groove; 22, convex part; 23, groove; 3, outer top rubber ring; 20, seat body; 4, through hole; 41, receiving groove; 411, second mounting groove; 5, seat body; 51, first through hole; 511, first notch; 52, first insertion hole; 53, second insertion hole; 6, cover plate; 61, second through hole; 611, second notch; 62, first through hole; 63, second through hole; 71, first sealing ring; 72, second sealing ring; 81, first fastener; 82, second fastener; 200, piston rod; 300, chamber. Detailed implementation manners

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0045] The present application provides a top rubber component. Please refer to Figure 1 andFigure 2 , Figure 1 and Figure 2 are the structural schematic diagrams of the top rubber component provided by the embodiments of the present application.

[0046] The top rubber component 10 is used for an air spring. The top rubber component 10 includes a top rubber inner ring 1 and a top rubber main body 2.

[0047] The top rubber inner ring 1 is provided with a connecting portion 15, and the connecting portion 15 extends along the circumferential direction of the top rubber inner ring 1.

[0048] The top rubber main body 2 surrounds the outside of the top rubber inner ring 1, and a plugging groove 21 is provided on the inner peripheral wall of the top rubber main body 2. At least a part of the connecting portion 15 is plugged into the plugging groove 21.

[0049] Wherein, one of the side walls of the plugging groove 21 and the side wall of the connecting portion 15 is provided with a convex portion 22, and the other is provided with a concave portion 151. The convex portion 22 extends into the concave portion 151 to limit the connecting portion 15 from disengaging from the plugging groove 21 along the radial direction of the top rubber inner ring 1. Specifically, as Figure 1 shown, the plugging groove 21 has upper and lower two side walls spaced along the axial direction of the top rubber main body 2, and the connecting portion 15 also has upper and lower two side walls spaced along the axial direction of the top rubber inner ring 1. The convex portion 22 can be provided on the side wall of the plugging groove 21, and at this time the concave portion 151 is provided on the side wall of the connecting portion 15; of course, the convex portion 22 can also be provided on the side wall of the connecting portion 15, and at this time the concave portion 151 is provided on the two side walls of the plugging groove 21. The convex portion 22 can extend into the concave portion 151 along the axial direction of the top rubber inner ring 1, or can extend into the concave portion 151 at an angle with respect to the axial direction of the top rubber inner ring 1. That is, when the connecting portion 15 is inserted into the plugging groove 21, the convex portion 22 will be embedded into the concave portion 151, so that the movement of the connecting portion 15 along the radial direction of the top rubber inner ring 1 can be effectively restricted, and the connecting portion 15 can be prevented from disengaging from the plugging groove 21, thereby ensuring the tight fit between the top rubber inner ring 1 and the top rubber main body 2.

[0050] In the technical solution of the present application, by providing the convex portion 22 on one of the side walls of the plugging groove 21 and the side wall of the connecting portion 15, and the concave portion 151 on the other side, the cooperation between the convex portion 22 and the concave portion 151 effectively restricts the connecting portion 15 from disengaging from the plugging groove 21 along the radial direction of the top rubber inner ring 1, enhances the connection stability between the top rubber inner ring 1 and the top rubber main body 2, enhances the connection firmness of the top rubber component 10 and the reliability of the overall structure, thereby improving the performance and safety of the air spring.

[0051] In some embodiments, the connecting portion 15 includes a main body portion 12 and a plugging portion 13 that is circumferentially connected to the outside of the main body portion 12. Along the radial direction of the inner ring 1 of the top rubber, at least one side of the two relatively arranged sides of the plugging portion 13 protrudes from the main body portion 12 to form a recess 151 at the main body portion 12; the plugging portion 13 and at least a part of the main body portion 12 are inserted into the plugging groove 21. Along the radial direction of the inner ring 1 of the top rubber, at least one side wall of the two relatively arranged side walls of the plugging groove 21 is correspondingly provided with a convex portion 22, and the convex portion 22 is used to limit the plugging portion 13 from disengaging from the plugging groove 21. Specifically, as Figure 2 shown, the plugging groove 21 has two upper and lower side walls spaced along the axial direction of the top rubber main body 2. The plugging portion 13 is inserted into the plugging groove 21. The plugging portion 13 also has upper and lower sides spaced apart. The upper side of the plugging portion 13 corresponds to the upper side wall of the plugging groove 21, and the lower side of the plugging portion 13 corresponds to the lower side wall of the plugging groove 21. At least one side wall of the two relatively arranged side walls of the plugging groove 21 being correspondingly provided with a convex portion 22 means that when the upper side of the plugging portion 13 protrudes from the main body portion 12, a convex portion 22 is provided on the upper side wall of the plugging groove 21. When the lower side of the plugging portion 13 protrudes from the main body portion 12, a convex portion 22 is provided on the lower side wall of the plugging groove 21. When both the upper side and the lower side of the plugging portion 13 protrude from the main body portion 12, convex portions 22 are provided on both the upper side wall and the lower side wall of the plugging groove 21. That is, the protruding setting of the plugging portion 13 and the convex portion 22 of the plugging groove 21 cooperate with each other, so that the convex portion 22 is used to limit the plugging portion 13 from disengaging from the plugging groove 21. In these embodiments, the main body portion 12 serves as the basic part of the connecting portion 15, providing the main support and connection functions. The plugging portion 13 is circumferentially connected to the outside of the main body portion 12, increasing the thickness and strength of the connecting portion 15, improving the overall stability. The plugging portion 13 and at least a part of the main body portion 12 are inserted into the plugging groove 21 together to form a multi-point fixed structure, enhancing the overall stability of the connection, enhancing the connection firmness of the top rubber assembly 10 and the reliability of the overall structure, thereby improving the performance and safety of the air spring.

[0052] It can be understood that, as Figure 2 shown, both sides of the plugging portion 13 that are relatively arranged protrude from the main body portion 12, and convex portions 22 are provided on both side walls of the plugging groove 21 that are relatively arranged. In this way, the connection between the inner ring 1 of the top rubber and the top rubber main body 2 is better reinforced. This symmetric design can distribute stress more evenly, effectively preventing the inner ring 1 of the top rubber from displacing or rotating in any direction, thereby significantly enhancing the overall stability and durability of the top rubber assembly 10. Even under extreme vibration or impact conditions, it can ensure that the top rubber assembly 10 of the air spring maintains a firm connection, improving the safety and service life of the equipment.

[0053] In some embodiments, the top rubber inner ring 1 also includes a sleeve portion 14, and the main body 12 is connected to the outside of the sleeve portion 14 in a surrounding manner. Along the radial direction of the top rubber inner ring 1, at least one of the two opposite sides of the sleeve portion 14 protrudes from the main body 12. In these embodiments, a thinner main body portion 12 and a thicker sleeve portion 14 are formed. It can be understood that the sleeve portion 14 is sleeved on the outside of the piston rod 200. The thicker sleeve portion 14 is provided, so that the matching length between the top rubber inner ring 1 and the piston rod 200 is increased, thereby significantly enhancing the connection stability between the top rubber inner ring 1 and the piston rod 200, and effectively preventing the loosening phenomenon that may occur during long-term operation or under a vibration environment. The thinner main body portion 12 is provided on the part of the top rubber inner ring 1 close to the top rubber main body 2, which can provide a larger deformation space. The thinner main body portion 12 allows the top rubber main body 2 to deform and swing more freely when subjected to pressure or vibration, avoiding the problem of limited deformation space caused by thickness limitation. In this way, it is ensured that the air spring can maintain good shock absorption performance and comfort under various working conditions, while extending the service life of the top rubber assembly 10 and improving the stability and safety of the overall equipment.

[0054] In some embodiments, the sleeve portion 14 surrounds the mounting hole 11, the mounting hole 11 is used to pass the piston rod 200, and the inner wall of the mounting hole 11 is provided with a first mounting groove 141, the first mounting groove 141 is used to install the first sealing ring 71 (see Figure 3 In these embodiments, by providing a first mounting groove 141 on the inner wall of the mounting hole 11, the first sealing ring 71 can be accurately installed in the first mounting groove 141, thereby ensuring the sealing performance between the piston rod 200 and the inner ring 1 of the top rubber, effectively preventing the leakage of gas inside the air spring, and preventing the entry of external impurities, thereby maintaining the normal working pressure and stability of the air spring. The provision of the first sealing ring 71 not only improves the sealing effect, but also extends the service life of the air spring, ensuring the safe operation and efficient performance of the equipment under various working conditions.

[0055] In some embodiments, a groove 23 is provided on at least one of the two opposing sides of the strut body 2 along the radial direction of the strut inner ring 1. In these embodiments, the groove 23 achieves spatial decoupling of stiffness and optimizes the stress distribution of the strut body 2 by changing the geometry and stress distribution of the strut body 2. This not only enhances the flexibility and load adaptability of the component, but also effectively disperses stress, improving overall durability and dynamic performance, while also enhancing energy absorption capacity and enhancing air spring performance.

[0056] It can be understood that grooves 23 are provided on both relatively arranged sides of the top rubber body 2, and the grooves 23 on both sides are symmetrically distributed. This not only strengthens the effect of stiffness decoupling, enabling the top rubber body 2 to evenly disperse stress in multiple directions and improving its dynamic balance; at the same time, the symmetrical structure also ensures that no matter from which angle the external force is applied, consistent performance can be maintained, greatly enhancing the stability and service life of the top rubber assembly 10.

[0057] In some embodiments, the top rubber assembly 10 has a first dimension in the radial direction of the inner top rubber ring 1, and the top rubber assembly 10 has a second dimension in the axial direction of the inner top rubber ring 1, and the first dimension is greater than the second dimension. In these embodiments, reducing the axial dimension while increasing the radial dimension aims to significantly improve the yaw angle ability of the piston rod 200. Specifically, the increase in the radial dimension means that the top rubber assembly 10 can cover a wider range, effectively disperse the lateral force, enhance the lateral stiffness and stability of the structure, so that the piston rod 200 can maintain good guiding performance and control accuracy even when there is a large lateral offset. And the reduction of the axial dimension is to reduce the axial constraint of the piston rod 200, give it more ample movement space, and thus achieve a larger yaw angle, enhance the adaptability and response speed of the air spring, and overall optimize the performance and dynamic stability of the air spring under complex working conditions.

[0058] In some embodiments, the first dimension is greater than or equal to 1.5 times the second dimension. In these embodiments, defining the first dimension (radial dimension) of the top rubber assembly 10 to be greater than or equal to 1.5 times the second dimension (axial dimension) not only significantly improves the yaw angle ability of the piston rod 200, but also optimizes the performance and dynamic stability of the air spring under complex working conditions, and overall improves the reliability of the system and the user experience. By carefully adjusting the size ratio of the top rubber assembly 10, the lateral stiffness and axial movement space are balanced to achieve the best comprehensive performance.

[0059] In some embodiments, the top rubber assembly 10 further includes an outer top rubber ring 3, and the outer top rubber ring 3 is connected to the outer peripheral edge of the top rubber body 2. In these embodiments, the outer top rubber ring 3 is connected around the top rubber body 2, which helps to further enhance the structural integrity and sealing performance of the top rubber assembly 10. The outer top rubber ring 3 can provide additional support to ensure that the top rubber body 2 will not deform or displace when subjected to external forces, thus maintaining the correct working position and shape of the air spring.

[0060] In some embodiments, the top rubber body 2, the inner top rubber ring 1 and the outer top rubber ring 3 are integrally formed. In these embodiments, integral forming simplifies the assembly process, reduces the production cost, and improves the overall quality and efficiency of the top rubber assembly 10.

[0061] The present application does not limit the materials of the top rubber body 2, the inner top rubber ring 1, and the outer top rubber ring 3. The material of the top rubber body 2 can be rubber, or high-performance engineering plastics with elasticity such as thermoplastic polyurethane (TPU) and thermoplastic elastomer (TPE). The materials of the inner top rubber ring 1 and the outer top rubber ring 3 can be steel, or metals such as aluminum alloy. When the top rubber body 2 is made of rubber or other elastic polymer materials, it is usually integrally vulcanized with the inner top rubber ring 1 and the outer top rubber ring 3 made of metal to form a solid integrated structure. When the top rubber body 2 does not use rubber, such as using high-performance engineering plastics such as thermoplastic polyurethane (TPU) and thermoplastic elastomer (TPE), the one-piece molding can be achieved by injection molding or reaction injection molding (RIM) technology.

[0062] According to the second aspect of the present application, please refer to Figure 3 and Figure 4 , a top seat assembly 100 is provided, including a top rubber assembly 10 and a seat body 20. The seat body 20 is provided with a through hole 4. The top rubber assembly 10 is disposed in the through hole 4 and is hermetically connected to the seat body 20. The structure of the top rubber assembly 10 is as described above. Since the top seat assembly 100 adopts all the technical solutions of all the above embodiments, it has at least the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0063] It should be noted that the air spring further includes other structures, such as a base, a bladder, etc. The base, the bladder, and the seat body 20 of the top seat assembly 100 together enclose a closed chamber 300. The through hole 4 communicates with the chamber 300. The present application mainly focuses on the improvement of the top rubber assembly 10 and the top seat assembly 100, and other structures will not be elaborated.

[0064] In some embodiments, the inner wall of the through hole 4 is provided with a receiving groove 41. The outer peripheral edge of the top rubber assembly 10 is inserted into the receiving groove 41, and in the radial direction of the inner top rubber ring 1, both opposite sides of the top rubber body 2 abut against the side walls of the receiving groove 41. In these embodiments, the outer peripheral edge of the top rubber assembly 10 is inserted into the receiving groove 41. This plug-in installation method ensures the stability of the connection between the top rubber assembly 10 and the seat body 20. Both opposite sides of the top rubber assembly 10 can be in close contact with the side walls of the receiving groove 41. The top rubber assembly 10 is not only more firmly installed, but also achieves a tight seal with the seat body 20, greatly enhancing the stability and reliability of the operation of the top rubber assembly 10 and improving the performance and safety of the air spring.

[0065] In some embodiments, a second mounting groove 411 is provided at the bottom of the receiving groove 41. The top seat assembly 100 further includes a second sealing ring 72 mounted in the second mounting groove 411 to seal the top rubber assembly 10 and the seat body 20. In these embodiments, by providing the second mounting groove 411 at the bottom of the receiving groove 41 and installing the second sealing ring 72 therein, the structural design of the entire top seat assembly 100 is further optimized, not only improving the sealing effect, but also ensuring that the top rubber assembly 10 can work more reliably, thereby enhancing the performance of the air spring. Specifically, the second sealing ring 72 is made of a material with good elasticity and weather resistance, such as silicone rubber, fluororubber, etc., to ensure that its sealing performance can be maintained for a long time. The second sealing ring 72 is placed in the second mounting groove 411 to closely fit the top rubber assembly 10 and the seat body 20.

[0066] In some embodiments, referring to Figures 4 to 6 , the seat body 20 includes a seat body 5 and a cover plate 6 that are separately provided and fixedly connected; the through hole 4 includes a first through hole 51 and a second through hole 61 that are separately provided in the axial direction of the through hole 4. The first through hole 51 is provided in the seat body 5, and the second through hole 61 is provided in the cover plate 6; a first notch 511 is provided on one side of the seat body 5 facing the cover plate 6, and a second notch 611 is provided on one side of the cover plate 6 facing the seat body 5. The first notch 511 and the second notch 611 communicate to form the receiving groove 41. In these embodiments, the seat body 20 adopts a split design and is composed of two parts, the seat body 5 and the cover plate 6. These two parts are assembled together by a fixed connection method, which is not only convenient for production and assembly, but also ensures the integrity and stability of the structure.

[0067] In some embodiments, a first through hole 62 is provided on the cover plate 6, and a first insertion hole 52 is provided on the seat body 5. The first insertion hole 52 and the first through hole 62 are used to pass through a first fastener 81 to realize the fixed connection between the cover plate 6 and the seat body 5. In these embodiments, through the first fastener 81 (such as a bolt, a screw, etc.), passing through the first through hole 62 and screwing into the first insertion hole 52, a reliable connection between the cover plate 6 and the seat body 5 is realized. Since the detachable first fastener 81 connection method is adopted, the maintainability is considered while ensuring the structural strength.

[0068] In some embodiments, a second through hole 63 is provided on the cover plate 6, and a second insertion hole 53 is provided on the seat body 5. The second insertion hole 53 and the second through hole 63 are used to pass through a second fastener 82 to connect the cover plate 6 and the seat body 5 to the vehicle body. In these embodiments, by providing the second through hole 63 and the second insertion hole 53 on the cover plate 6 and the seat body 5 and connecting them to the vehicle body using the second fastener 82 (such as a bolt, a screw, etc.), the quick positioning and fixing of the top seat assembly 100 are realized.

[0069] According to a third aspect of the present application, an air spring is provided, which includes a top seat assembly 100 and a piston rod 200. The inner top rubber ring 1 is sleeved on the circumferential side of the piston rod 200. Specifically, the piston rod 200 passes through the mounting hole 11. The structure of the top seat assembly 100 is as described above. Since the air spring adopts all the technical solutions of the above-mentioned all embodiments, it has at least the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated herein one by one.

[0070] According to a fourth aspect of the present application, a vehicle is provided, which includes an air spring. The structure of the air spring is as described above. Since the vehicle adopts all the technical solutions of the above-mentioned all embodiments, it has at least the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated herein one by one.

[0071] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0072] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0073] Among the embodiments, embodiments, and related technical features of the present application, they can be combined and replaced with each other without conflict.

[0074] The above are only the preferred embodiments of the present application, and do not impose any form of limitation on the present application. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A top glue assembly for an air spring, characterized in that: Comprising: A top rubber inner ring, provided with a connecting portion, the connecting portion extending along the circumferential direction of the top rubber inner ring; and, A top rubber main body, surrounding the outside of the top rubber inner ring, and the inner peripheral wall of the top rubber main body is provided with a plugging groove, at least a part of the connecting portion is plugged into the plugging groove; One of the side walls of the plugging groove and the side wall of the connecting portion is provided with a convex portion, and the other is provided with a concave portion, the convex portion extending into the concave portion to limit the connecting portion from disengaging from the plugging groove along the radial direction of the top rubber inner ring.

2. The top rubber assembly according to claim 1, wherein The connecting portion includes a main body portion and a plugging portion surrounding and connecting to the outside of the main body portion, along the radial direction of the top rubber inner ring, at least one side of the opposite sides of the plugging portion protrudes from the main body portion to form the concave portion at the main body portion; The plugging portion and at least a part of the main body portion are inserted into the plugging groove, along the radial direction of the top rubber inner ring, at least one side wall of the opposite side walls of the plugging groove is correspondingly provided with the convex portion, the convex portion being used to limit the plugging portion from disengaging from the plugging groove.

3. The top rubber component according to claim 2, characterized in that, The top rubber inner ring further includes a socket portion, the main body portion surrounding and connecting to the outside of the socket portion, along the radial direction of the top rubber inner ring, at least one side of the opposite sides of the socket portion protrudes from the main body portion.

4. The top glue assembly according to claim 3, characterized in that: The socket portion surrounds and forms a mounting hole, the mounting hole being used for passing through a piston rod, and the inner wall of the mounting hole is provided with a first mounting groove, the first mounting groove being used for mounting a first sealing ring.

5. The top glue assembly according to claim 1, characterized in that: Along the radial direction of the top rubber inner ring, at least one side of the opposite sides of the top rubber main body is provided with a groove.

6. The top glue assembly according to claim 1, characterized in that: The top rubber assembly has a first dimension in the radial direction of the top rubber inner ring, the top rubber assembly has a second dimension in the axial direction of the top rubber inner ring, and the first dimension is greater than the second dimension.

7. The top rubber component according to claim 6, characterized in that, The first dimension is greater than or equal to 1.5 times the second dimension.

8. The top rubber component according to any one of claims 1 to 7, characterized in that, The top rubber assembly further includes a top rubber outer ring, the top rubber outer ring surrounding and connecting to the outside of the top rubber main body.

9. A top seat assembly, characterized in that, Comprising: The top rubber assembly according to any one of claims 1 to 8; And, A seat body, the seat body being provided with a through hole, the top rubber assembly being disposed in the through hole and sealingly connected to the seat body.

10. The top seat assembly according to claim 9, characterized in that, The inner wall of the through hole is provided with a receiving groove, the outer peripheral edge of the top rubber assembly is inserted into the receiving groove, and along the radial direction of the top rubber inner ring, both opposite sides of the top rubber main body abut against the side walls of the receiving groove.

11. The top seat assembly according to claim 10, characterized in that, The bottom of the receiving groove is provided with a second mounting groove, and the top seat assembly further includes a second sealing ring mounted in the second mounting groove to seal the top rubber assembly and the seat body.

12. The top seat assembly according to claim 10, characterized in that: The seat body includes a seat main body and a cover plate which are separately arranged and fixedly connected; The through hole includes a first through hole and a second through hole which are separately arranged in the axial direction of the through hole, the first through hole is disposed in the seat main body, and the second through hole is disposed in the cover plate; The seat main body is provided with a first notch on the side facing the cover plate, the cover plate is provided with a second notch on the side facing the seat main body, and the first notch and the second notch communicate to form the receiving groove.

13. The top seat assembly according to claim 12, wherein, The cover plate is provided with a first penetration hole, and the seat body is provided with a first insertion hole. The first insertion hole and the first penetration hole are used to penetrate a first fastener to achieve a fixed connection between the cover plate and the seat body.

14. The top seat assembly according to claim 12, characterized in that: The cover plate is provided with a second penetration hole, and the seat body is provided with a second insertion hole. The second insertion hole and the second penetration hole are used to penetrate a second fastener for connecting the cover plate and the seat body to a vehicle body.

15. An air spring, characterized in that, include: The top seat assembly according to any one of claims 9 to 14, and piston rod; The inner ring of the top rubber is sleeved on the circumference of the piston rod.

16. A vehicle, characterized in that, Comprising the air spring as claimed in claim 15.

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