Air spring shock absorber assembly, front suspension system and vehicle with front suspension system

Abstract

The utility model discloses an air spring shock absorber assembly, a front suspension system and a vehicle with the air spring shock absorber assembly, the air spring shock absorber assembly is used for the front suspension system, the front suspension system comprises a lower swing arm assembly, and the air spring shock absorber assembly comprises a shock absorber body suitable for being connected with a vehicle body; the upper end of the fork arm assembly is connected with the lower end of the shock absorber main body; the universal ball joint assembly is connected to the lower end of the fork arm assembly, and the fork arm assembly is connected with the lower swing arm assembly through the universal ball joint assembly. According to the air spring shock absorber assembly, torsional deformation of the shock absorber body can be borne by the universal ball joint assembly, linear motion and torsional motion of the air spring shock absorber assembly in the axial direction are decoupled, the durability in the torsional direction is improved, the service life is prolonged, and the supporting effect and the shock absorption effect are guaranteed; and the cost can be reduced, the process difficulty can be reduced, and the method is suitable for large-scale popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an air spring shock absorber assembly, a front suspension system and a vehicle with the same. Background Art

[0002] In the related art, the airbag of an air spring is mainly composed of an outer cover rubber, a cord layer and an inner liner rubber. Among them, the cord is generally made of high-strength fiber nylon, rayon and other materials. The selection of the cord material determines the pressure resistance of the air spring. The number of cord layers is usually two layers. The layers cross each other and are arranged at a certain angle with the warp direction of the airbag. The anti-torsion performance of the airbag is poor. Due to the special structure of the air spring airbag, the axial durability of the air spring is good, but the durability in the torsion direction is poor, which is not suitable for large-scale popularization. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an air spring shock absorber assembly, which can improve the durability in the torsion direction, extend the service life, ensure the supporting effect and shock absorption effect of the air spring shock absorber assembly, and improve the user experience.

[0004] The utility model also provides a front suspension system, which includes the above-mentioned air spring shock absorber assembly.

[0005] The utility model also provides a vehicle, which includes the above-mentioned front suspension system.

[0006] The air spring shock absorber assembly according to the embodiment of the utility model is used for a front suspension system, which includes a lower control arm assembly. The air spring shock absorber assembly includes: a shock absorber body, which is adapted to be connected to the vehicle body; a fork arm assembly, the upper end of which is connected to the lower end of the shock absorber body; a universal ball joint assembly, which is connected to the lower end of the fork arm assembly, and the fork arm assembly is connected to the lower control arm assembly through the universal ball joint assembly.

[0007] According to the air spring shock absorber assembly of the embodiments of the present utility model, by providing a universal ball joint assembly at the lower end of the fork arm assembly, the fork arm assembly is connected to the lower control arm assembly through the universal ball joint assembly, so that the torsional deformation of the shock absorber body is borne by the universal ball joint assembly, decoupling the linear motion and the torsional motion of the air spring shock absorber assembly in the axial direction, minimizing the torsional motion of the air spring shock absorber assembly in the axial direction in the prior art, thereby preventing the torsional deformation of the airbag inside the air spring shock absorber assembly, preventing abnormal noises generated by torsional friction between the airbag and the aluminum cylinder and the piston, improving the durability performance of the air spring shock absorber assembly in the torsional direction, extending the service life of the air spring shock absorber assembly, ensuring the supporting effect and shock absorption effect of the air spring shock absorber assembly, improving the user experience, and reducing the production and maintenance costs of the air spring shock absorber assembly, reducing the production process difficulty of the air spring shock absorber assembly, and being suitable for large-scale popularization.

[0008] In addition, the air spring shock absorber assembly according to the present utility model may further have the following additional technical features:

[0009] In some embodiments, the lower control arm assembly is provided with a mounting hole, the lower end of the fork arm assembly is provided with a connecting shaft, the inner ring of the universal ball joint assembly is fixedly sleeved on the connecting shaft, and the outer ring of the universal ball joint assembly is adapted to be fixed in the mounting hole.

[0010] In some embodiments, the mounting hole penetrates through the lower control arm assembly, and the axial direction of the mounting hole is perpendicular to the length direction of the shock absorber body.

[0011] In some embodiments, the front suspension system further includes a stabilizer bar assembly, and the shock absorber body includes: an upper mounting seat assembly adapted to be fixed to the vehicle body; a shock absorber body, the upper end of the shock absorber body is connected to the upper mounting seat assembly, the lower end is connected to the fork arm assembly, the stabilizer bar assembly is connected to the outer wall of the shock absorber body; a piston sleeved outside the shock absorber body; an aluminum cylinder sleeved outside the piston, along the axial direction of the shock absorber body, the aluminum cylinder is spaced apart from both the upper mounting seat assembly and the stabilizer bar assembly; an airbag, one end of the airbag is connected to the piston, the other end is connected to the upper mounting seat assembly, and at least part of the airbag is located between the aluminum cylinder and the piston.

[0012] In some embodiments, the shock absorber body includes: an outer cylinder, both the stabilizer bar assembly and the fork arm assembly are connected to the outer cylinder; a piston rod passing through the outer cylinder and movable along the axial direction of the outer cylinder, the upper end of the piston rod is connected to the upper mounting seat assembly.

[0013] In some embodiments, the upper top seat assembly includes: a fixed seat adapted to be fixed to the vehicle body, one end of the airbag facing away from the piston is connected to the fixed seat, the fixed seat has a through hole, and along the length direction of the air spring shock absorber assembly, the through hole penetrates the fixed seat, and the piston rod is disposed in the through hole; a sealing cover covering the through hole from above the fixed seat; a buffer block disposed in the airbag and sleeved on the piston rod; and a top rubber assembly disposed in the through hole and sleeved on the piston rod.

[0014] In some embodiments, the shock absorber body further includes: a piston seat located between the shock absorber body and the piston, and the piston seat is located at the end of the piston away from the airbag, and a sealing ring is provided between the piston seat and the piston; a dust cover sleeved outside the piston, and along the length direction of the piston, one end of the dust cover is connected to the aluminum protective cylinder, and the other end is connected to the piston seat.

[0015] The front suspension system according to an embodiment of the present invention includes: a front steering knuckle connected to a wheel; a front upper swing arm, one end of the front upper swing arm is rotatably connected to the upper end of the front steering knuckle, and the other end is connected to the vehicle body; a lower swing arm assembly, one end of the lower swing arm assembly is rotatably connected to the lower end of the front steering knuckle, and the other end is rotatably connected to the front subframe assembly of the vehicle; the above-mentioned air spring shock absorber assembly, the upper end of the shock absorber body is fixedly connected to the vehicle body, and the lower end of the fork arm assembly is connected to the lower swing arm assembly through the universal ball joint assembly; a stabilizer bar assembly, the stabilizer bar assembly includes a front stabilizer bar and a pull rod, the upper end of the pull rod is connected to the shock absorber body, the lower end of the pull rod is connected to the front stabilizer bar, and the front stabilizer bar is connected to the front subframe assembly.

[0016] According to the front suspension system of the embodiment of the present utility model, by providing the above-mentioned air spring shock absorber assembly, and by providing a universal ball joint assembly at the lower end of the fork arm assembly, the fork arm assembly is connected to the lower control arm assembly through the universal ball joint assembly, so that the torsional deformation of the shock absorber body is borne by the universal ball joint assembly, enabling the linear motion and torsional motion of the air spring shock absorber assembly in the axial direction to be decoupled, minimizing the torsional motion of the air spring shock absorber assembly in the axial direction in the prior art, thereby preventing the torsional deformation of the airbag inside the air spring shock absorber assembly, preventing abnormal noise generated by torsional friction between the airbag and the aluminum cylinder and the piston, improving the durability of the air spring shock absorber assembly in the torsional direction, extending the service life of the air spring shock absorber assembly, ensuring the supporting effect and damping effect of the air spring shock absorber assembly, improving the user experience, and reducing the production and maintenance costs of the air spring shock absorber assembly, reducing the production process difficulty of the air spring shock absorber assembly, and being suitable for large-scale promotion.

[0017] In addition, the front suspension system according to the present utility model may further have the following additional technical features:

[0018] In some embodiments, the lower control arm assembly includes a first control arm and a second control arm. The first control arm is located on the front side of the second control arm along the front-rear direction of the vehicle, and the lower end of the fork arm assembly is connected to the second control arm through the universal ball joint assembly.

[0019] The present utility model also provides a vehicle having the above-mentioned embodiment.

[0020] According to the vehicle of the embodiment of the present utility model, by providing the above-mentioned front suspension system, and by providing a universal ball joint assembly at the lower end of the fork arm assembly, the fork arm assembly is connected to the lower control arm assembly through the universal ball joint assembly, so that the torsional deformation of the shock absorber body is borne by the universal ball joint assembly, enabling the linear motion and torsional motion of the air spring shock absorber assembly in the axial direction to be decoupled, minimizing the torsional motion of the air spring shock absorber assembly in the axial direction in the prior art, thereby preventing the torsional deformation of the airbag inside the air spring shock absorber assembly, preventing abnormal noise generated by torsional friction between the airbag and the aluminum cylinder and the piston, improving the durability of the air spring shock absorber assembly in the torsional direction, extending the service life of the air spring shock absorber assembly, ensuring the supporting effect and damping effect of the air spring shock absorber assembly, improving the user experience, and reducing the production and maintenance costs of the air spring shock absorber assembly, reducing the production process difficulty of the air spring shock absorber assembly, and being suitable for large-scale promotion.

[0021] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0023] Figure 1 is a perspective view of a front suspension system according to an embodiment of the present utility model;

[0024] Figure 2 is a cross-sectional view of an air spring shock absorber assembly according to an embodiment of the present utility model;

[0025] Figure 3 is a cross-sectional view of a part of the air spring shock absorber assembly according to an embodiment of the present utility model.

[0026] Reference numerals:

[0027] 100, front suspension system;

[0028] 10, air spring shock absorber assembly;

[0029] 1, shock absorber body; 11, upper mount assembly; 111, fixing seat; 1111, through hole; 112, sealing cover; 113, buffer block; 114, top rubber assembly; 12, shock absorber body; 121, outer cylinder; 122, piston rod; 13, piston; 131, first cavity; 14, aluminum protective cylinder; 15, airbag; 151, second cavity; 152, retaining ring; 16, piston seat; 161, sealing ring; 17, dust cover;

[0030] 2, fork arm assembly; 21, connecting shaft;

[0031] 3, universal ball joint assembly;

[0032] 20, lower control arm assembly; 201, first control arm; 202, second control arm; 203, mounting hole;

[0033] 30, stabilizer bar assembly; 301, front stabilizer bar; 302, tie rod;

[0034] 40, front steering knuckle;

[0035] 50, front upper control arm;

[0036] 200, front subframe assembly. Detailed implementation manners

[0037] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present utility model.

[0039] In addition, 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 of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0040] In the present utility model, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] The air spring shock absorber assembly 10 according to an embodiment of the present utility model will be described below with reference to the drawings.

[0042] As Figure 1 shown, the air spring shock absorber assembly 10 according to an embodiment of the present utility model is used for the front suspension system 100. The front suspension system 100 includes a lower control arm assembly 20. The air spring shock absorber assembly 10 includes a shock absorber body 1, a fork arm assembly 2, and a universal ball joint assembly 3.

[0043] Specifically, as Figure 1 shown, the shock absorber body 1 is adapted to be connected to the vehicle body, and the upper end of the shock absorber body 1 is connected to the vehicle body by bolts. The upper end of the fork arm assembly 2 is connected to the lower end of the shock absorber body 1, and the upper end of the fork arm assembly 2 is in interference fit with the lower end of the shock absorber body 1, so as to ensure the reliability of the connection between the fork arm assembly 2 and the shock absorber body 1.

[0044] Furthermore, as Figure 1As shown, the universal ball joint assembly 3 is connected to the lower end of the fork arm assembly 2 and is located radially inside the fork arm assembly 2. The fork arm assembly 2 is connected to the lower swing arm assembly 20 through the universal ball joint assembly 3. The setting of the universal ball joint assembly 3 can rotatably connect the fork arm assembly 2 and the lower swing arm assembly 20, so that the torsional deformation of the shock absorber body 1 is borne by the universal ball joint assembly 3, enabling the linear motion and torsional motion of the air spring shock absorber assembly 10 in the axial direction (refer to the up and down direction shown in the appendix Figure 1 to be decoupled, minimizing the torsional motion of the air spring shock absorber assembly in the axial direction in the prior art, thereby preventing the torsional deformation of the airbag 15 inside the air spring shock absorber assembly 10, preventing abnormal noises caused by torsional friction between the airbag 15 and the aluminum protective cylinder 14 and the piston 13, especially preventing abnormal noises during low-temperature friction, improving the torsional direction durability performance of the air spring shock absorber assembly 10, extending the service life of the air spring shock absorber assembly 10, ensuring the supporting effect and shock absorption effect of the air spring shock absorber assembly 10, enhancing the user experience, and reducing the production and maintenance costs of the air spring shock absorber assembly 10, reducing the production process difficulty of the air spring shock absorber assembly 10, and being suitable for large-scale promotion.

[0045] It can be understood that in the prior art, the front suspension system is used to support the front axle body, bear the vertical, lateral, and longitudinal forces from the road surface, and play a guiding role to achieve the steering function. During the up and down movement and steering of the wheel, the air spring shock absorber assembly is subjected to a moment, resulting in the torsional movement of the air spring shock absorber assembly in the axial direction, and the airbag will generate torsional movement in the axial direction, affecting the torsional movement fatigue life of the air spring shock absorber assembly in the axial direction. In the present utility model, the universal ball joint assembly 3 is arranged at the lower end of the fork arm assembly 2, so that the fork arm assembly 2 is connected to the lower swing arm assembly 20 through the universal ball joint assembly 3, and the universal movement of the universal ball joint assembly 3 can be utilized to offset the moment acting on the air spring shock absorber assembly 10, minimizing the torsional movement of the air spring shock absorber assembly 10 in the axial direction, ensuring the decoupling of the linear motion and torsional motion of the air spring shock absorber assembly 10 in the axial direction, and improving the torsional movement fatigue life of the air spring shock absorber assembly 10 in the axial direction.

[0046] According to the air spring shock absorber assembly 10 of the embodiments of the present utility model, by providing a universal ball joint assembly 3 at the lower end of the fork arm assembly 2, the fork arm assembly 2 is connected to the lower swing arm assembly 20 through the universal ball joint assembly 3, so that the torsional deformation of the shock absorber body 1 is borne by the universal ball joint assembly 3, enabling the linear motion and torsional motion of the air spring shock absorber assembly 10 in the axial direction to be decoupled, minimizing the torsional motion of the air spring shock absorber assembly in the axial direction in the prior art, thereby preventing the torsional deformation of the airbag 15 inside the air spring shock absorber assembly 10, preventing abnormal noises generated by torsional friction between the airbag 15 and the aluminum protective cylinder 14 and the piston 13, improving the durability performance of the air spring shock absorber assembly 10 in the torsional direction, extending the service life of the air spring shock absorber assembly 10, ensuring the support effect and shock absorption effect of the air spring shock absorber assembly 10, improving the user experience, and reducing the production and maintenance costs of the air spring shock absorber assembly 10, reducing the production process difficulty of the air spring shock absorber assembly 10, and being suitable for large-scale promotion.

[0047] In some embodiments of the present utility model, referring to the attached Figure 1 and the attached Figure 2 As shown, an installation hole 203 is provided on the lower swing arm assembly 20, a connecting shaft 21 is provided at the lower end of the fork arm assembly 2, the inner ring of the universal ball joint assembly 3 is fixedly sleeved on the connecting shaft 21, the inner ring of the universal ball joint assembly 3 is a spherical part, and the outer ring of the universal ball joint assembly 3 is adapted to be fixed in the installation hole 203, so that the inner ring of the universal ball joint assembly 3 and the connecting shaft 21 can rotate relative to the outer ring of the universal ball joint assembly 3, realizing the rotational connection between the fork arm assembly 2 and the lower swing arm assembly 20, enabling the torsional deformation of the shock absorber body 1 to be borne by the universal ball joint assembly 3, enabling the linear motion and torsional motion of the air spring shock absorber assembly 10 in the axial direction to be decoupled, minimizing the torsional motion of the air spring shock absorber assembly in the axial direction in the prior art, thereby preventing the torsional deformation of the airbag 15 inside the air spring shock absorber assembly 10, preventing abnormal noises generated by torsional friction between the airbag 15 and the aluminum protective cylinder 14 and the piston 13, improving the durability performance of the air spring shock absorber assembly 10 in the torsional direction, extending the service life of the air spring shock absorber assembly 10, improving the user experience, and reducing the production and maintenance costs of the air spring shock absorber assembly 10, reducing the production process difficulty of the air spring shock absorber assembly 10, and being suitable for large-scale promotion.

[0048] In a further embodiment of the present utility model, referring to the attached Figure 1 and the attached Figure 2 As shown, the installation hole 203 penetrates through the lower swing arm assembly 20, and the axial direction of the installation hole 203 (referring to the a direction shown in the attached Figure 2 shown) is the same as the length direction of the shock absorber body 1 (referring to the attached Figure 2The vertical direction shown) is perpendicular to each other, so that the inner ring of the universal ball joint assembly 3 can drive the fork arm assembly 2 to rotate relative to the lower swing arm assembly 20, and the rotation range of the universal ball joint assembly 3 can be increased, ensuring the force balance at both ends of the connecting shaft 21 in the length direction (refer to the attached Figure 2 a direction shown), thus ensuring the reliability of the cooperation between the universal ball joint assembly 3 and the fork arm assembly 2.

[0049] In some embodiments of the present invention, refer to the attached Figure 1 and the attached Figure 2 As shown, the front suspension system 100 further includes a stabilizer bar assembly 30. The shock absorber body 1 includes an upper mount assembly 11, a shock absorber body 12, a piston 13, an aluminum cylinder 14 and an airbag 15. The upper mount assembly 11 is adapted to be fixed to the vehicle body. The upper end of the shock absorber body 12 is connected to the upper mount assembly 11, and the lower end is connected to the fork arm assembly 2. The stabilizer bar assembly 30 is connected to the outer wall of the shock absorber body 12 through a ball joint. Further, refer to the attached Figure 2 and the attached Figure 3 As shown, the piston 13 is sleeved outside the shock absorber body 12 and connected to the shock absorber body 12. A first cavity 131 is jointly defined between the inner wall of the piston 13 and the outer wall of the shock absorber body 12. The first cavity 131 is used to store gas. In the direction from top to bottom (such as Figure 2 shown), the diameter of the first cavity 131 gradually decreases.

[0050] Furthermore, refer to the attached Figure 2 and the attached Figure 3 As shown, the aluminum cylinder 14 is sleeved outside the piston 13. Along the axial direction of the shock absorber body 12 (the vertical direction shown in the attached Figure 2 ), the aluminum cylinder 14 is spaced apart from both the upper mount assembly 11 and the stabilizer bar assembly 30. The setting of the aluminum cylinder 14 can prevent foreign objects such as stones from entering the air spring shock absorber assembly 10 and affecting the service life of the air spring shock absorber assembly 10.

[0051] Still further, refer to the attached Figure 2 and the attached Figure 3As shown, one end of the airbag 15 is connected to the piston 13, and the other end is connected to the upper seat assembly 11. The airbag 15 and the upper seat assembly 11 jointly define a second cavity 151, which is used to store gas. The second cavity 151 is connected to the first cavity 131, and the gas in the first cavity 131 and the gas in the second cavity 151 can flow with each other. The airbag 15 can be deformed according to the movement of the piston 13, and the air pressure in the first cavity 131 and the second cavity 151 can be adjusted, so that the stiffness of the air spring shock absorber assembly 10 can be variable, and the nonlinear restoring force of air compression can be used to play a role of vibration isolation and buffering, thereby reducing the up and down bumping of the vehicle body, thereby improving the comfort and handling performance of the vehicle. In addition, at least part of the airbag 15 is located between the aluminum sleeve 14 and the piston 13, so that the airbag 15 can be protected by the aluminum sleeve 14, and the stability of the airbag 15 is improved. It should be noted that the airbag 15 is connected to the piston 13 and the aluminum sleeve 14 through the retaining ring 152, which can ensure the reliability and stability of the connection between the airbag 15, the piston 13 and the aluminum sleeve 14, and facilitate the fixation of the airbag 15. It should be noted that the retaining ring 152 is an "O"-shaped ring structure.

[0052] In a further embodiment of the present invention, refer to the attached Figure 2 As shown, the shock absorber body 12 includes an outer tube 121 and a piston rod 122. The stabilizer bar assembly 30 and the fork arm assembly 2 are connected to the outer tube 121. The upper end of the piston 13 is also connected to the upper end of the outer tube 121. The piston rod 122 is inserted into the outer tube 121 and extends along the axial direction of the outer tube 121 (see the attached Figure 2 The upper end of the piston rod 122 is connected to the upper seat assembly 11 by a fastener.

[0053] It can be understood that the upper seat assembly 11 is fixedly connected to the vehicle body, and the upper end of the piston rod 122 is connected to the upper seat assembly 11 by a nut, so that the piston rod 122 is fixed relative to the vehicle body, and the outer cylinder 121 and the piston rod 122 move relative to each other along the axial direction of the outer cylinder 121, so that the outer cylinder 121 drives the piston 13 to move relative to the vehicle body. Since the airbag 15 is connected to the piston 13, the airbag 15 is deformed, and the air pressure in the first cavity 131 and the second cavity 151 is adjusted, so that the stiffness of the air spring damper assembly 10 is variable, and the nonlinear restoring force of air compression can be used to play a role of vibration isolation and buffering, thereby reducing the up and down bumps of the vehicle body, thereby improving the comfort and handling performance of the vehicle.

[0054] In a further embodiment of the present invention, refer to the attached Figure 2 and attached Figure 3As shown, the upper top seat assembly 11 includes a fixing seat 111, a sealing cover 112, a buffer block 113 and a top glue assembly 114. The fixing seat 111 is suitable for fixing to the vehicle body. The end of the airbag 15 away from the piston 13 is connected to the fixing seat 111 through a retaining ring 152, which can ensure the reliability and stability of the connection between the airbag 15 and the fixing seat 111, and facilitate the fixing of the airbag 15. The fixing seat 111 has a through hole 1111, which is connected along the length direction of the air spring damper assembly 10 (refer to the attached Figure 2 The through hole 1111 penetrates the fixing seat 111, and the piston rod 122 is arranged in the through hole 1111. The through hole 1111 can limit the piston rod 122 to prevent the piston rod 122 from deflecting, thereby ensuring the reliability and stability of the relative movement between the piston rod 122 and the outer tube 121. It should be noted that the retaining ring 152 is an "O"-shaped circular ring structure.

[0055] Further, see Attachment Figure 2 and attached Figure 3 As shown, the sealing cover 112 is arranged on the through hole 1111 from above the fixing seat 111 to block the through hole 1111 and prevent dust, debris, etc. from entering the inside of the shock absorber body 1 from the upper side of the through hole 1111, thereby extending the service life of the air spring shock absorber assembly 10, and the sealing cover 112 and the fixing seat 111 are connected together by riveting, which can be shock-proof and impact-resistant, thereby ensuring the reliability and stability of the air spring shock absorber assembly 10.

[0056] Further, see Appendix Figure 2 and attached Figure 3 As shown, the buffer block 113 is arranged in the airbag 15 and is sleeved on the piston rod 122. The buffer block 113 is located on the side of the fixed seat 111 facing the piston 13 and is interference connected with the fixed seat 111, which can play a buffering role, reduce the impact caused by the bumps of the vehicle body, prevent the fixed seat 111 from colliding with the outer cylinder 121, reduce the noise during the driving of the vehicle and extend the service life of the air spring shock absorber assembly 10 to a certain extent.

[0057] Further, see the attached Figure 2 and attached Figure 3 As shown, the top rubber assembly 114 is arranged in the through hole 1111 and is sleeved on the piston rod 122. The top rubber assembly 114 is interference connected with the fixing seat 111, which can further improve the vibration reduction performance of the air spring shock absorber assembly 10, reduce wear and reduce tire noise.

[0058] In a further embodiment of the present invention, refer to the attached Figure 2 and attached Figure 3As shown, the shock absorber body 1 further includes a piston seat 16 and a dust cover 17. The piston seat 16 is located between the shock absorber body 12 and the piston 13, and the piston seat 16 is located at the end of the piston 13 away from the airbag 15. The setting of the piston seat 16 can position the piston 13, facilitating the assembly of the piston 13. A sealing ring 161 is provided between the piston seat 16 and the piston 13. The sealing ring 161 is in an "O" - shaped structure, which can prevent air leakage between the piston 13 and the piston seat 16.

[0059] Further, referring to the appendix Figure 2 and the appendix Figure 3 As shown, the dust cover 17 is sleeved outside the piston 13. Along the length direction of the piston 13 (referring to the up - down direction shown in the appendix Figure 2 ), one end of the dust cover 17 is connected to the aluminum protective cylinder 14, and the other end is connected to the piston seat 16. The dust cover 17 can expand and contract along the axial direction of the air spring shock absorber assembly 10 (referring to the up - down direction shown in the appendix Figure 2 ) to match the bumps of the vehicle body. It should be noted that the dust cover 17 is a corrugated hollow cylindrical structure, and in the direction from top to bottom, the diameter of the dust cover 17 gradually decreases.

[0060] The present utility model also proposes a front suspension system 100 having the air spring shock absorber assembly 10 of the above - mentioned embodiment.

[0061] As Figure 1 shown, the front suspension system 100 according to the embodiment of the present utility model includes a front steering knuckle 40, a front upper swing arm 50, a lower swing arm assembly 20, the above - mentioned air spring shock absorber assembly 10, and a stabilizer bar assembly 30.

[0062] Specifically, referring to the appendix Figure 1 shown, the front steering knuckle 40 is connected to the wheel to indirectly connect the wheel and the vehicle body. Further, one end of the front upper swing arm 50 is rotatably connected to the upper end of the front steering knuckle 40 through a ball joint, and the other end is connected to the vehicle body through a bushing. Specifically, referring to the appendix Figure 1 shown, the front upper swing arm 50 is in a "U" - shaped structure. The air spring shock absorber assembly 10 is passed through the open mouth of the front upper swing arm 50. The front upper swing arm 50 is an aluminum alloy part and is made by forging process, which can reduce the weight of the front upper swing arm 50 as much as possible, and then reduce the weight of the front suspension system 100, which is beneficial to the lightweight design of the vehicle. Further, referring to the appendix Figure 1 shown, one end of the lower swing arm assembly 20 is rotatably connected to the lower end of the front steering knuckle 40 through a ball joint, and the other end is rotatably connected to the front sub - frame assembly 200 of the vehicle through a bushing.

[0063] Still further, referring to the appendix Figure 2As shown, the upper end of the shock absorber body 1 is fixedly connected to the vehicle body, and the lower end of the fork arm assembly 2 is connected to the lower swing arm assembly 20 through the universal ball joint assembly 3. The setting of the universal ball joint assembly 3 can rotatably connect the fork arm assembly 2 and the lower swing arm assembly 20, so that the torsional deformation of the shock absorber body 1 is borne by the universal ball joint assembly 3, so that the linear motion and torsional motion of the air spring shock absorber assembly 10 along the axial direction are decoupled, and the torsional motion of the air spring shock absorber assembly along the axial direction in the prior art is minimized, thereby preventing The airbag 15 inside the air spring shock absorber assembly 10 is torsionally deformed, which prevents abnormal noise caused by torsional friction between the airbag 15 and the aluminum casing 14 and the piston 13, especially prevents abnormal noise caused by low-temperature friction, improves the durability of the air spring shock absorber assembly 10 in the torsional direction, extends the service life of the air spring shock absorber assembly 10, improves the user experience, and can reduce the production and maintenance costs of the air spring shock absorber assembly 10, reduce the difficulty of the production process of the air spring shock absorber assembly 10, and is suitable for large-scale promotion.

[0064] Further, see Attachment Figure 1 As shown, the stabilizer bar assembly 30 can play a stabilizing role. The stabilizer bar assembly 30 includes a front stabilizer bar 301 and a tie rod 302. The upper end of the tie rod 302 is connected to the shock absorber body 1 through a ball joint, and the lower end of the tie rod 302 is connected to the front stabilizer bar 301 through a ball joint. The front stabilizer bar 301 is connected to the front subframe assembly 200 of the vehicle. The arrangement of the stabilizer bar assembly 30 can improve the stability of the entire front suspension system 100. It should be noted that the front stabilizer bar 301 is made of iron, adopts a bending process, and has a hollow structure in the middle, which can reduce the weight of the front upper swing arm 50 as much as possible, thereby reducing the weight of the front suspension system 100, which is conducive to the lightweight design of the vehicle.

[0065] According to the front suspension system 100 of the embodiment of the utility model, the air spring shock absorber assembly 10 is provided, and the universal ball joint assembly 3 is provided at the lower end of the fork arm assembly 2. The fork arm assembly 2 is connected with the lower swing arm assembly 20 through the universal ball joint assembly 3, so that the torsional deformation of the shock absorber body 1 is borne by the universal ball joint assembly 3, so that the linear motion and torsional motion of the air spring shock absorber assembly 10 along the axial direction are decoupled, and the torsional motion of the air spring shock absorber assembly along the axial direction in the prior art is minimized, thereby preventing the air spring from being deformed. The airbag 15 inside the shock absorber assembly 10 is torsionally deformed, which prevents abnormal noise caused by torsional friction between the airbag 15 and the aluminum casing 14 and the piston 13, improves the torsional durability of the air spring shock absorber assembly 10, extends the service life of the air spring shock absorber assembly 10, ensures the supporting effect and shock absorbing effect of the air spring shock absorber assembly 10, improves the user experience, and can reduce the production and maintenance costs of the air spring shock absorber assembly 10, reduce the difficulty of the production process of the air spring shock absorber assembly 10, and is suitable for large-scale promotion.

[0066] In some embodiments of the present invention, refer to the attached Figure 1 As shown, the lower swing arm assembly 20 includes a first swing arm 201 and a second swing arm 202. The first swing arm 201 is located at the second swing arm 202 along the front-to-back direction of the vehicle (such as Figure 1 On the front side of the front suspension system 100, the first swing arm 201 and the second swing arm 202 are spaced apart from one end of the sub-frame assembly, so that the lower swing arm assembly 20 can be connected to the sub-frame assembly from two locations along the front-rear direction of the vehicle, thereby improving the reliability of the connection between the lower swing arm assembly 20 and the sub-frame assembly, and further improving the stability of the front suspension system 100.

[0067] Further, see Attachment Figure 1 As shown, the lower end of the fork arm assembly 2 is connected to the second swing arm 202 through the universal ball joint assembly 3. The setting of the universal ball joint assembly 3 can rotatably connect the fork arm assembly 2 and the second swing arm 202, so that the torsional deformation of the shock absorber body 1 is borne by the universal ball joint assembly 3, so that the linear motion and torsional motion of the air spring shock absorber assembly 10 along the axial direction are decoupled, and the torsional motion of the air spring shock absorber assembly along the axial direction in the prior art is minimized, thereby preventing the air bag 15 inside the air spring shock absorber assembly 10 from torsional deformation, and preventing abnormal noise due to torsional friction between the air bag 15 and the aluminum sleeve 14 and the piston 13, especially preventing abnormal noise due to low-temperature friction, improving the torsional direction durability of the air spring shock absorber assembly 10, extending the service life of the air spring shock absorber assembly 10, improving the user experience, and can reduce the production and maintenance costs of the air spring shock absorber assembly 10, reduce the difficulty of the production process of the air spring shock absorber assembly 10, suitable for large-scale promotion.

[0068] Specifically, refer to the attached Figure 1 As shown, the first swing arm 201 and the second swing arm 202 are both "I"-shaped structures. The outer ends of the first swing arm 201 and the second swing arm 202 are connected to the front steering knuckle 40 through a ball joint, and the inner ends are rotatably connected to the front subframe assembly 200 of the vehicle through a bushing. The first swing arm 201 and the second swing arm 202 are both aluminum alloy parts. The forging process is adopted, which can reduce the weight of the front upper swing arm 50 as much as possible, thereby reducing the weight of the front suspension system 100, which is beneficial to the lightweight design of the vehicle.

[0069] The utility model also provides a vehicle having the front suspension system 100 of the above embodiment.

[0070] According to the vehicle of the embodiment of the present utility model, by providing the above-mentioned front suspension system 100, and by providing a universal ball joint assembly 3 at the lower end of the fork arm assembly 2, the fork arm assembly 2 is connected to the lower swing arm assembly 20 through the universal ball joint assembly 3, so that the torsional deformation of the shock absorber body 1 is borne by the universal ball joint assembly 3, enabling the linear motion and torsional motion of the air spring shock absorber assembly 10 in the axial direction to be decoupled, minimizing the torsional motion of the air spring shock absorber assembly in the axial direction in the prior art, thereby preventing the torsional deformation of the airbag 15 inside the air spring shock absorber assembly 10, preventing abnormal noise generated due to torsional friction between the airbag 15 and the aluminum protective cylinder 14 and the piston 13, improving the torsional direction durability performance of the air spring shock absorber assembly 10, extending the service life of the air spring shock absorber assembly 10, ensuring the supporting effect and shock absorption effect of the air spring shock absorber assembly 10, improving the user experience, and reducing the production and maintenance costs of the air spring shock absorber assembly 10, reducing the production process difficulty of the air spring shock absorber assembly 10, and being suitable for large-scale promotion.

[0071] The other components and operations of the air spring shock absorber assembly 10, the front suspension system 100 and the vehicle according to the embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0072] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0073] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An air spring damper assembly, characterized in that: Used in a front suspension system, the front suspension system includes a lower swing arm assembly, and the air spring damper assembly includes: A shock absorber body, wherein the shock absorber body is suitable for being connected to a vehicle body; a fork arm assembly, the upper end of the fork arm assembly being connected to the lower end of the shock absorber body; A universal ball joint assembly is connected to the lower end of the fork arm assembly, and the fork arm assembly is connected to the lower swing arm assembly through the universal ball joint assembly.

2. The air spring damper assembly according to claim 1, characterized in that: The lower swing arm assembly is provided with a mounting hole, the lower end of the fork arm assembly is provided with a connecting shaft, the inner ring of the universal ball joint assembly is fixedly sleeved on the connecting shaft, and the outer ring of the universal ball joint assembly is suitable for being fixed in the mounting hole.

3. The air spring damper assembly according to claim 2, characterized in that: The mounting hole passes through the lower swing arm assembly, and the axial direction of the mounting hole is perpendicular to the length direction of the shock absorber body.

4. The air spring damper assembly according to claim 1, characterized in that: The front suspension system further includes a stabilizer bar assembly, and the shock absorber body includes: An upper top seat assembly, wherein the upper top seat assembly is suitable for being fixed to the vehicle body; A shock absorber body, wherein the upper end of the shock absorber body is connected to the upper top seat assembly, the lower end of the shock absorber body is connected to the fork arm assembly, and the stabilizer bar assembly is connected to the outer wall of the shock absorber body; A piston, wherein the piston is sleeved outside the shock absorber body; An aluminum sleeve, wherein the aluminum sleeve is sleeved outside the piston, and along the axial direction of the shock absorber body, the aluminum sleeve is spaced apart from the upper seat assembly and the stabilizer bar assembly; An airbag, one end of which is connected to the piston, and the other end of which is connected to the upper seat assembly, and at least a portion of the airbag is located between the aluminum sleeve and the piston.

5. The air spring damper assembly according to claim 4, characterized in that: The shock absorber body comprises: An outer cylinder, the stabilizer bar assembly and the fork arm assembly are both connected to the outer cylinder; A piston rod is inserted into the outer tube and is movable along the axial direction of the outer tube. The upper end of the piston rod is connected to the upper seat assembly.

6. The air spring damper assembly according to claim 5, characterized in that: The upper seat assembly comprises: A fixing seat, the fixing seat is suitable for fixing to the vehicle body, one end of the airbag away from the piston is connected to the fixing seat, the fixing seat has a through hole, along the length direction of the air spring shock absorber assembly, the through hole penetrates the fixing seat, and the piston rod is inserted into the through hole; A sealing cover, the sealing cover is arranged on the through hole from above the fixing seat; A buffer block, the buffer block is arranged in the airbag and sleeved on the piston rod; A top rubber assembly is arranged in the through hole and sleeved on the piston rod.

7. The air spring damper assembly according to claim 4, characterized in that: The shock absorber body also includes: A piston seat, the piston seat is located between the shock absorber body and the piston, and the piston seat is located at an end of the piston away from the airbag, and a sealing ring is provided between the piston seat and the piston; A dust cover is sleeved outside the piston. Along the length direction of the piston, one end of the dust cover is connected to the aluminum sleeve, and the other end is connected to the piston seat.

8. A front suspension system, characterized in that: include: A front steering knuckle connected to the wheel; A front upper swing arm, one end of which is rotatably connected to the upper end of the front steering knuckle, and the other end of which is connected to the vehicle body; A lower swing arm assembly, one end of which is rotatably connected to the lower end of the front steering knuckle, and the other end of which is rotatably connected to the front subframe assembly of the vehicle; According to any one of claims 1 to 7, the upper end of the shock absorber body is fixedly connected to the vehicle body, and the lower end of the fork arm assembly is connected to the lower swing arm assembly through the universal ball joint assembly; A stabilizer bar assembly comprises a front stabilizer bar and a pull rod, the upper end of the pull rod is connected to the shock absorber body, the lower end of the pull rod is connected to the front stabilizer bar, and the front stabilizer bar is connected to the front subframe assembly.

9. The front suspension system according to claim 8, characterized in that: The lower swing arm assembly comprises: A first swing arm and a second swing arm, wherein the first swing arm is located in front of the second swing arm along the front-rear direction of the vehicle, and the lower end of the fork arm assembly is connected to the second swing arm through the universal ball joint assembly.

10. A vehicle, characterized in that: Comprising a front suspension system according to any one of claims 8-9.

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