Suspension system and vehicle

Abstract

The utility model provides a suspension system and a vehicle, the suspension system comprises a primary suspension unit and a secondary suspension unit; the first-stage suspension unit comprises a mounting frame, and a front suspension bushing and a rear suspension bushing which are arranged on the mounting frame, and the front suspension bushing and the rear suspension bushing are connected with the power assembly; the second-stage suspension unit comprises two front suspension assemblies and two rear suspension assemblies, wherein the two front suspension assemblies and the two rear suspension assemblies are arranged on the left side and the right side of the mounting frame respectively. According to the suspension system, through the arrangement of the first-stage suspension unit and the second-stage suspension unit, the vibration isolation effect of the whole vehicle is improved, the front suspension assembly and the rear suspension assembly are both arranged on the left side and the right side of the installation frame, and the front suspension lining and the rear suspension lining are both arranged on the installation frame; the occupation of the suspension structure on the energy absorption space is reduced, and the collision resistance and the offset collision condition score of the whole vehicle body are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to a suspension system. Meanwhile, the utility model also relates to a vehicle provided with the suspension system. Background Art

[0002] The powertrain suspension system is an important and indispensable component that connects the powertrain to the vehicle body. It mainly supports and positions the powertrain and isolates vibration transmission. However, the existing suspension system is limited by its own structure. After being arranged on the vehicle body, the suspension structure often occupies a large energy absorption space in the front cabin, resulting in a large intrusion of the front wall panel and deformation of the passenger compartment during an offset collision, thereby affecting the collision performance of the vehicle. In addition, the existing suspension system has a general vibration isolation effect and it is difficult to effectively isolate the transmission of vibration between the powertrain and the vehicle body. Utility Model Content

[0003] In view of this, the utility model aims to provide a suspension system to reduce the occupation of the suspension structure on the energy absorption space and to have a better vibration isolation effect.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A suspension system comprises a primary suspension unit and a secondary suspension unit;

[0006] The primary suspension unit includes a mounting frame, a front suspension bushing provided at a front end of the mounting frame, and a rear suspension bushing provided at a rear end of the mounting frame, and the front suspension bushing and the rear suspension bushing are connected to a powertrain;

[0007] The secondary suspension unit includes a front suspension assembly arranged at the front end of the mounting frame, and a rear suspension assembly arranged at the rear end of the mounting frame. The front suspension assembly and the rear suspension assembly are both arranged on the left and right sides of the mounting frame, and the front suspension assembly is connected to the subframe, and the rear suspension assembly is connected to the vehicle body longitudinal beam.

[0008] Further, the mounting frame includes a front beam, a rear beam, and side beams disposed between left and right ends of the front beam and the rear beam;

[0009] The front suspension bushings are disposed on both left and right ends of the front beam, and the rear suspension bushings are disposed on each of the side beams.

[0010] Further, the front suspension bushing is connected to the upper portion of the powertrain;

[0011] The rear end of the side beam has a bent portion bent downward, and the rear suspension bushing is arranged on the bent portion and connected to the lower part of the power assembly.

[0012] Furthermore, in the up-down direction of the vehicle, the mounting frame is connected above the subframe through the front suspension assembly.

[0013] Furthermore, the front suspension assembly includes a front suspension frame, a front connecting frame, and a front suspension body disposed therebetween;

[0014] The front suspension frame is connected to the subframe along the vertical direction of the whole vehicle, the front connecting frame is connected to the mounting frame along the vertical direction of the whole vehicle, the front suspension body is embedded in the front suspension frame, and the inner core of the front suspension body is connected to the front connecting frame.

[0015] Further, the front suspension frame is connected to the top of the sub-frame, and the front connecting frame is connected to the bottom of the mounting frame; and / or,

[0016] The front connecting frame has a connecting column extending in the left-right direction of the whole vehicle, and the connecting column is press-fitted into the inner core.

[0017] Furthermore, the rear suspension assembly includes a rear suspension frame, a rear connecting frame, and a rear suspension body disposed therebetween;

[0018] The rear suspension frame is connected to the vehicle body longitudinal beam along the left-right direction of the vehicle, the rear connecting frame is connected to the mounting frame along the up-down direction of the vehicle, the rear suspension body is embedded in the rear suspension frame, and the inner core of the rear suspension body is connected to the rear connecting frame.

[0019] Furthermore, the rear connecting frame includes a main arm, and two supporting arms provided at one end of the main arm;

[0020] The other end of the main arm is press-fitted into the inner core, and the two support arms are connected to the mounting frame.

[0021] Furthermore, an elastic pad is provided on the rear suspension body;

[0022] The elastic pad is blocked between the support arm and the rear suspension frame, and a through hole for the main arm to pass through is arranged on the elastic pad.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] The suspension system described in the utility model is beneficial to isolating the transmission of vibration between the powertrain and the vehicle body by providing a primary suspension unit and a secondary suspension unit, thereby improving the vibration isolation effect of the whole vehicle, and the front suspension assembly and the rear suspension assembly are both arranged on the left and right sides of the mounting frame, and the front suspension bushing and the rear suspension bushing are both arranged on the mounting frame, which is beneficial to reducing the encroachment of the suspension structure on the energy absorption space, thereby reducing the intrusion of the front wall panel and the deformation of the passenger compartment during offset collision, and improving the crash resistance of the whole vehicle body and the offset collision condition score.

[0025] In addition, by making the mounting frame include the front beam, the rear beam and the side beam, the structure is simple, the setting and implementation are convenient, and the arrangement of the front suspension bushing and the rear suspension bushing is convenient. And by connecting the front suspension bushing to the upper part of the powertrain and connecting the rear suspension bushing to the lower part of the powertrain, it is possible to avoid arranging the suspension or related connection structure in front of or behind the powertrain, which is beneficial to improving the energy absorption space of the front cabin.

[0026] In addition, the mounting frame is connected to the upper part of the sub-frame through the front suspension assembly, which facilitates the separation of the mounting frame and the sub-frame in the height direction of the whole vehicle, avoids arranging the suspension system on the sub-frame assembly, facilitates assembly, and facilitates achieving a better collision force transmission effect. Moreover, by providing a front suspension skeleton and a front connecting frame, it is convenient to achieve the connection between the mounting frame and the sub-frame, and the setting of the front suspension body is conducive to achieving secondary vibration isolation, and the structure is simple and easy to set up and implement.

[0027] Secondly, by connecting the front suspension frame to the top of the subframe and connecting the front connecting frame to the bottom of the mounting frame, the connection between the front connecting frame and the suspension bushing is facilitated. In addition, by providing the rear suspension frame and the rear connecting frame, the connection between the mounting frame and the vehicle body longitudinal beam is facilitated, and by providing the rear suspension body, secondary vibration isolation is facilitated to improve the vibration isolation effect.

[0028] Furthermore, by making the rear connecting frame include a main arm, and making one end of the main arm press-fitted in the inner core, it is convenient to realize the connection between the rear connecting frame and the mounting frame, and the support arm is provided on the main arm to connect with the mounting frame, which is conducive to ensuring the connection strength between the rear connecting frame and the mounting frame. In addition, by providing an elastic pad, it is convenient to prevent the rear connecting frame from colliding with the rear suspension frame.

[0029] Another object of the present invention is to provide a vehicle, wherein the vehicle is provided with the suspension system as described above.

[0030] The vehicle described in the utility model has the same technical effects as the above-mentioned suspension system compared with the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0032] Figure 1 This is a schematic diagram of the installation structure of the suspension system according to an embodiment of the utility model;

[0033] Figure 2 It is a structural schematic diagram of a suspension system according to an embodiment of the utility model when connected to a vehicle body from one perspective;

[0034] Figure 3 It is a structural schematic diagram of another perspective when the suspension system according to an embodiment of the utility model is connected to the vehicle body;

[0035] Figure 4 It is a structural schematic diagram of the suspension system according to an embodiment of the utility model;

[0036] Figure 5 It is a structural schematic diagram of the front suspension assembly according to an embodiment of the utility model;

[0037] Figure 6 It is a structural schematic diagram of a rear suspension assembly according to an embodiment of the utility model from one perspective;

[0038] Figure 7 This is a structural schematic diagram of the rear suspension assembly described in an embodiment of the utility model from another perspective.

[0039] Description of reference numerals:

[0040] 1. Installation frame; 101. Front beam; 102. Rear beam; 103. Side beam; 2. Front suspension bushing; 3. Rear suspension bushing; 4. Front suspension assembly; 401. Front suspension skeleton; 402. Front connecting frame; 403. Front suspension body; 5. Rear suspension assembly; 501. Rear suspension skeleton; 502. Rear connecting frame; 5021. Main arm; 5022. Support arm; 503. Rear suspension body; 6. Subframe; 7. Vehicle body longitudinal beam; 8. Elastic pad. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0042] In the description of the utility model, it should be noted that the directional words such as "up, down, left, right, front, and back" used in the present embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the automobile. Among them, the up-down direction of the automobile is also the height direction of the automobile, the front-back direction of the automobile is also the length direction of the automobile, and the left-right direction of the automobile is also the width direction of the automobile. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0044] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0045] Embodiment 1

[0046] This embodiment relates to a suspension system, the overall structure of which is as follows: Figure 1 As shown in , the suspension system includes a primary suspension unit and a secondary suspension unit. The primary suspension unit includes a mounting frame 1, a front suspension bushing 2 provided at the front end of the mounting frame 1, and a rear suspension bushing 3 provided at the rear end of the mounting frame 1, and the front suspension bushing 2 and the rear suspension bushing 3 are connected to the powertrain. The secondary suspension unit includes a front suspension assembly 4 provided at the front end of the mounting frame 1, and a rear suspension assembly 5 provided at the rear end of the mounting frame 1, and the front suspension assembly 4 and the rear suspension assembly 5 are both provided on the left and right sides of the mounting frame 1, and the front suspension assembly 4 is connected to the subframe 6, and the rear suspension assembly 5 is connected to the vehicle body longitudinal beam 7.

[0047] In this embodiment, the front suspension assembly 4 and the rear suspension assembly 5 are both arranged on the left and right sides of the mounting frame 1, and the front suspension bushing 2 and the rear suspension bushing 3 are arranged on the mounting frame 1, which is conducive to reducing the occupation of the suspension structure on the energy absorption space, thereby reducing the intrusion of the front wall plate and the deformation of the passenger compartment during offset collision, and improving the crashworthiness of the vehicle body and the offset collision condition score. In addition, the suspension system includes a primary suspension unit and a secondary suspension unit, which is conducive to isolating the transmission of vibration between the powertrain and the vehicle body, and improving the vibration isolation effect of the vehicle.

[0048] Based on the above overall introduction, as a preferred implementation method, Figure 3 and Figure 4As shown in the figure, in this embodiment, the mounting frame 1 includes a front beam 101, a rear beam 102, and a side beam 103 disposed between the left and right ends of the front beam 101 and the rear beam 102. The left and right ends of the front beam 101 are both provided with a front suspension bushing 2, and each side beam 103 is provided with a rear suspension bushing 3. By making the mounting frame 1 include the front beam 101, the rear beam 102 and the side beam 103, the structure is simple, the setting and implementation are convenient, and the arrangement of the front suspension bushing 2 and the rear suspension bushing 3 is convenient.

[0049] When implementing it, Figure 1 As shown in , the powertrain can be arranged in the space formed by the front beam 101, the rear beam 102 and the side beams 103 on both sides, so as to facilitate the connection between the front suspension bushing 2 and the rear suspension bushing 3 and the powertrain. In addition, during installation, the front suspension bushing 2 and the rear suspension bushing 3 can be connected to the powertrain by bolts, and the front suspension bushing 2 and the rear suspension bushing 3 can be closely attached to the powertrain, and there is no need to arrange additional connecting brackets between the powertrain and the front suspension and the rear suspension, so as to avoid the existence of a cantilever structure between the front suspension bushing 2 and the rear suspension bushing 3 and the powertrain, reduce the occupation of the energy absorption space, and make it have a better collision energy absorption effect.

[0050] Moreover, the mounting frame 1 can be integrally cast, which is convenient to manufacture and has good structural strength. In addition, the front suspension bushing 2 and the rear suspension bushing 3 of this embodiment can both be suspension bushings commonly used in the prior art, and their structures will not be described in detail here. In addition, during installation, the front suspension bushing 2 and the rear suspension bushing 3 can be installed on the front beam 101 and the side beam 103 respectively by interference fit, which is convenient to assemble and has good installation stability. Moreover, the front suspension bushing 2 is pressed on the front beam 101, which can reduce the energy absorption space in front of the powertrain occupied by the mounting frame 1 and the suspension bushing.

[0051] As a preferred implementation method, Figure 1 and Figure 4 As shown in , in this embodiment, the front suspension bushing 2 is connected to the upper part of the powertrain. The rear end of the side beam 103 has a curved portion that is bent downward, and the rear suspension bushing 3 is arranged on the curved portion and connected to the lower part of the powertrain. By connecting the front suspension bushing 2 to the upper part of the powertrain and connecting the rear suspension bushing 3 to the lower part of the powertrain, it is possible to avoid arranging the suspension or related connection structure directly in front of or behind the powertrain, which is beneficial to improving the energy absorption space of the front cabin, reducing the encroachment on the energy absorption space, and improving the crashworthiness of the vehicle body and the offset collision condition score.

[0052] In a specific implementation, the front suspension bushing 2 can be arranged corresponding to the area of ​​one third of the powertrain near the upper end, and the rear suspension bushing 3 can be arranged corresponding to the area of ​​one third of the powertrain near the lower end. Figure 2 As shown in FIG. 1 , in this embodiment, in the vertical direction of the vehicle, the mounting frame 1 is connected to the upper part of the sub-frame 6 through the front suspension assembly 4. This arrangement facilitates the separation of the mounting frame 1 and the sub-frame 6 in the height direction of the vehicle, avoids arranging the suspension system on the sub-frame 6 for assembly, facilitates assembly, and facilitates achieving a better collision force transmission effect.

[0053] As a preferred implementation method, Figure 2 and Figure 5 As shown in the figure, in this embodiment, the front suspension assembly 4 includes a front suspension frame 401, a front connecting frame 402, and a front suspension body 403 disposed therebetween. The front suspension frame 401 is connected to the subframe 6 along the vertical direction of the vehicle, the front connecting frame 402 is connected to the mounting frame 1 along the vertical direction of the vehicle, the front suspension body 403 is embedded in the front suspension frame 401, and the inner core of the front suspension body 403 is connected to the front connecting frame 402.

[0054] It can be understood that the front suspension frame 401 and the front connecting frame 402 are provided to facilitate the connection between the mounting frame 1 and the sub-frame 6, and the provision of the front suspension body 403 is conducive to the realization of double-stage vibration isolation, and the structure is simple and easy to set up and implement. In the specific implementation, the front suspension frame 401 and the sub-frame 6, and the front connecting frame 402 and the mounting frame 1 can be connected by bolts.

[0055] As a preferred example, Figure 2 As shown in , in this embodiment, the front suspension frame 401 is connected to the top of the sub-frame 6, and the front connecting frame 402 is connected to the bottom of the mounting frame 1. The front connecting frame 402 has a connecting column extending in the left-right direction of the vehicle, and the connecting column is press-fitted into the inner core. By connecting the front suspension frame 401 to the top of the sub-frame 6 and connecting the front connecting frame 402 to the bottom of the mounting frame 1, the connection between the front connecting frame 402 and the suspension bushing is facilitated, which helps to make the size of the front suspension frame 401 in the height direction of the vehicle smaller. A connecting column is provided on the front connecting frame 402, and the connecting column is press-fitted into the inner core shape, so that the connection structure is simple and the connection operation is convenient.

[0056] It should be noted that, in the present embodiment, the front suspension skeleton 401 is connected to the top of the front sub-frame 6, the front connecting frame 402 is connected to the bottom of the mounting frame 1, and a connecting column which is interference fit in the inner core is provided on the front connecting frame 402. This is only a preferred implementation mode. In addition, in other embodiments, the front suspension skeleton 401 and the front connecting frame 402 may be connected to other positions of the sub-frame 6 and the mounting frame 1, or the front connecting frame 402 may be connected to the inner core of the front suspension body 403 by other means, such as the front suspension skeleton 401 may be connected to the side of the sub-frame 6, or the front connecting frame 402 may be connected to the side or top of the mounting frame 1. It is also possible to choose not to provide a connecting column on the front connecting frame 402, and connect the front connecting frame 402 to the inner core by bolts.

[0057] As a preferred implementation method, Figure 3 and Figure 6 and Figure 7 As shown in , the rear suspension assembly 5 includes a rear suspension skeleton 501, a rear connecting frame 502, and a rear suspension body 503 disposed therebetween. The rear suspension skeleton 501 is connected to the longitudinal beam 7 of the vehicle body along the left-right direction of the vehicle, the rear connecting frame 502 is connected to the mounting frame 1 along the up-down direction of the vehicle, the rear suspension body 503 is embedded in the rear suspension skeleton 501, and the inner core of the rear suspension body 503 is connected to the rear connecting frame 502. By providing the rear suspension skeleton 501 and the rear connecting frame 502, it is convenient to realize the connection between the mounting frame 1 and the longitudinal beam 7 of the vehicle body, and by providing the rear suspension body 503, it is convenient to realize secondary vibration isolation and improve the vibration isolation effect.

[0058] In addition, as a preference, in this embodiment, the rear connecting frame 502 includes a main arm 5021 and two supporting arms 5022 provided at one end of the main arm 5021, the other end of the main arm 5021 is press-fitted in the inner core by interference fit, and the two supporting arms 5022 are connected to the mounting frame 1. By making the rear connecting frame 502 include the main arm 5021, and making one end of the main arm 5021 press-fitted in the inner core by interference fit, the structure is simple and the assembly is convenient, and the supporting arms 5022 are provided on the main arm 5021 to connect with the mounting frame 1, which is conducive to ensuring the connection strength between the rear connecting frame 502 and the mounting frame 1. The main arm 5021 and the two supporting arms 5022 all have connection points connected with the mounting frame 1, and the main arm 5021 and the two supporting arms 5022 can be connected to the mounting frame 1 by bolts.

[0059] As a preferred implementation method, Figure 6As shown in the figure, in this embodiment, an elastic pad 8 is provided on the rear suspension body 503. The elastic pad 8 is placed between the support arm 5022 and the rear suspension frame 501, and a through hole is provided on the elastic pad 8 for the main arm 5021 to pass through. By providing the elastic pad 8, it is convenient to prevent the rear connecting frame 502 from colliding with the rear suspension frame 501. In specific implementation, the elastic pad 8 can be made of elastic materials such as rubber commonly used in the prior art.

[0060] It should also be noted that the front suspension bushing 2, the rear suspension bushing 3, the front suspension body 403 and the rear suspension body 503 in this embodiment can be arranged with reference to the structure of the suspension bushing commonly used in the prior art, and the structure and size of the front suspension bushing 2, the rear suspension bushing 3, the front suspension body 403 and the rear suspension body 503 can be made the same to facilitate the universal interchangeability of the various components.

[0061] The suspension system of this embodiment is provided with a primary suspension unit and a secondary suspension unit, which is beneficial to isolating the transmission of vibration between the powertrain and the vehicle body and improving the vibration isolation effect of the whole vehicle. The front suspension assembly 4 and the rear suspension assembly are both arranged on the left and right sides of the mounting frame 1, and the front suspension bushing 2 and the rear suspension bushing 3 are arranged on the mounting frame 1, which is beneficial to reducing the encroachment of the suspension structure on the energy absorption space, thereby reducing the intrusion of the front wall panel and the deformation of the passenger compartment during offset collision, and improving the crash resistance of the whole vehicle body and the offset collision condition score.

[0062] Embodiment 2

[0063] This embodiment relates to a vehicle, on which the suspension system of the first embodiment is provided.

[0064] The vehicle of this embodiment has the same technical effect as the suspension system of the first embodiment compared with the prior art, and will not be described in detail here.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A suspension system, characterized in that: It includes a primary suspension unit and a secondary suspension unit; The primary suspension unit comprises a mounting frame (1), a front suspension bushing (2) arranged at the front end of the mounting frame (1), and a rear suspension bushing (3) arranged at the rear end of the mounting frame (1), and the front suspension bushing (2) and the rear suspension bushing (3) are connected to a powertrain; The secondary suspension unit comprises a front suspension assembly (4) arranged at the front end of the mounting frame (1), and a rear suspension assembly (5) arranged at the rear end of the mounting frame (1), the front suspension assembly (4) and the rear suspension assembly (5) being two arranged on the left and right sides of the mounting frame (1), and the front suspension assembly (4) is connected to the subframe (6), and the rear suspension assembly (5) is connected to the vehicle body longitudinal beam (7).

2. The suspension system according to claim 1, characterized in that: The installation frame (1) comprises a front beam (101), a rear beam (102), and a side beam (103) arranged between left and right ends of the front beam (101) and the rear beam (102); The front suspension bushings (2) are provided at both left and right ends of the front beam (101), and the rear suspension bushings (3) are provided on each of the side beams (103).

3. The suspension system according to claim 2, characterized in that: The front suspension bushing (2) is connected to the upper part of the power assembly; The rear end of the side beam (103) has a bent portion bent downward, and the rear suspension bushing (3) is arranged on the bent portion and connected to the lower part of the power assembly.

4. The suspension system according to claim 1, characterized in that: In the vertical direction of the whole vehicle, the mounting frame (1) is connected above the subframe (6) via the front suspension assembly (4).

5. The suspension system according to claim 4, characterized in that: The front suspension assembly (4) comprises a front suspension frame (401), a front connecting frame (402), and a front suspension body (403) arranged therebetween; The front suspension frame (401) is connected to the subframe (6) along the vertical direction of the whole vehicle, the front connecting frame (402) is connected to the mounting frame (1) along the vertical direction of the whole vehicle, the front suspension body (403) is embedded in the front suspension frame (401), and the inner core of the front suspension body (403) is connected to the front connecting frame (402).

6. The suspension system according to claim 5, characterized in that: The front suspension frame (401) is connected to the top of the sub-frame (6), and the front connecting frame (402) is connected to the bottom of the mounting frame (1); and / or, The front connecting frame (402) has a connecting column extending in the left-right direction of the whole vehicle, and the connecting column is interference-pressed in the inner core.

7. The suspension system according to any one of claims 1 to 6, characterized in that: The rear suspension assembly (5) comprises a rear suspension frame (501), a rear connecting frame (502), and a rear suspension body (503) arranged therebetween; The rear suspension frame (501) is connected to the vehicle body longitudinal beam (7) along the left-right direction of the vehicle, the rear connecting frame (502) is connected to the installation frame (1) along the up-down direction of the vehicle, the rear suspension body (503) is embedded in the rear suspension frame (501), and the inner core of the rear suspension body (503) is connected to the rear connecting frame (502).

8. The suspension system according to claim 7, characterized in that: The rear connecting frame (502) comprises a main arm (5021) and two supporting arms (5022) arranged at one end of the main arm (5021); The other end of the main arm (5021) is interference-pressed into the inner core, and the two support arms (5022) are connected to the mounting frame (1).

9. The suspension system according to claim 8, characterized in that: An elastic pad (8) is provided on the rear suspension body (503); The elastic pad (8) is disposed between the support arm (5022) and the rear suspension frame (501), and a through hole is provided on the elastic pad (8) for the main arm (5021) to pass through.

10. A vehicle, characterized in that: The vehicle is provided with the suspension system according to any one of claims 1 to 9.

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