Suspension system and vehicle

Abstract

The utility model discloses a suspension system and a vehicle. The suspension system comprises a first end cover and a first spring piece, the first end cover is used for being connected with one of the vehicle body and the wheel assembly, and the first spring piece is used for being connected with the other one of the vehicle body and the wheel assembly; the second end cover is arranged between the first end cover and the first spring piece, and the second end cover is connected with the end, close to the first end cover, of the spring piece; and the second spring piece is arranged between the second end cover and the first end cover. According to the embodiment of the utility model, through the matching of the first end cover, the second end cover and the second spring piece, the distance between the vehicle body and the wheel assembly is increased in an extreme driving environment, so that the wheel assembly is always in contact with the ground, the probability that the first spring piece is disengaged is reduced, the trafficability is improved, the conditions of abnormal sound and impact feeling are improved, and the service life of the vehicle is prolonged. And the comfort is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a suspension system and vehicle. Background Technology

[0002] In existing technology, a suspension system is typically installed between the vehicle body and the wheels. The main function of the suspension system is to ensure proper contact between the wheels and the ground and to absorb impacts and vibrations from uneven road surfaces. The suspension system includes springs and shock absorbers. Springs bear the vertical load from the wheels and provide elastic support. The main function of shock absorbers is to absorb impacts and vibrations from uneven road surfaces to improve vehicle comfort and handling. Especially in off-road or rough road conditions, shock absorbers mitigate the relative movement between the wheels and the vehicle body, ensuring vehicle stability and passenger comfort.

[0003] However, in certain extreme driving conditions, such as challenging off-road driving, mountain climbing, and traversing sandy or muddy terrain, wheel lift-off is quite common. When the wheel is completely off the ground, the shock absorber's effectiveness is greatly affected, causing it to fail to perform its intended function, and the vehicle's traction drops significantly. At this point, the wheel no longer generates sufficient friction with the ground, and the vehicle loses its normal driving ability. Especially during off-road driving, after the wheel has been off the ground for a period of time, the vehicle may not be able to regain sufficient ground contact, making it unable to pass obstacles or climb hills, and there is also the possibility of spring dislodgement. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a suspension system that improves passability and reduces the probability of spring disengagement.

[0005] The suspension system according to an embodiment of the present utility model includes: a first end cover and a first spring member, wherein the first end cover is used to connect one of the vehicle body and the wheel assembly, and the first spring member is used to connect the other of the vehicle body and the wheel assembly; a second end cover, wherein the second end cover is disposed between the first end cover and the first spring member, and the second end cover is connected to one end of the spring member near the first end cover; and a second spring member, wherein the second spring member is disposed between the second end cover and the first end cover.

[0006] According to the suspension system of this utility model embodiment, through the cooperation of the first end cover, the second end cover and the second spring member, the distance between the vehicle body and the wheel assembly is increased in extreme driving environments, so that the wheel assembly is always in contact with the ground, reducing the probability of the first spring member coming off, improving passability, and improving the situation of abnormal noise and impact feeling, thus improving comfort.

[0007] In some embodiments, the first end cap has a first limiting portion, the second end cap has a second limiting portion, and the two ends of the second spring are respectively connected to the first limiting portion and the second limiting portion.

[0008] In some embodiments, the first limiting part is constructed as a first limiting groove, the second limiting part is constructed as a second limiting groove, and the two ends of the second spring member are respectively inserted into the first limiting groove and the second limiting groove.

[0009] In some embodiments, the first end cap includes a first stop portion disposed at the edge of the first limiting groove, and the second end cap includes a second stop portion disposed at the edge of the second limiting groove, wherein the first stop portion is adapted to abut against the second stop portion.

[0010] In some embodiments, the second end cap is provided with a third limiting groove on the side opposite to the second limiting groove, and the first spring is at least partially disposed in the third limiting groove.

[0011] In some embodiments, the first end cap is provided with a guide portion, and the second end cap is provided with a mating portion. The guide portion and the mating portion cooperate to guide the movement of the second end cap.

[0012] In some embodiments, the guide portion is configured as a guide post, the mating portion is configured as a mating hole, and the guide post is inserted into the mating hole.

[0013] In some embodiments, the guide post is located at the center of the first end cap, and the second spring is sleeved on the guide post.

[0014] In some embodiments, at least one end of the first spring member is provided with a first rubber pad, and / or, at least one end of the second spring member is provided with a second rubber pad.

[0015] The vehicle according to an embodiment of the present invention includes the suspension system described above.

[0016] According to the vehicle of this utility model embodiment, the cooperation of the first end cover, the second end cover and the second spring member increases the distance between the vehicle body and the wheel assembly in extreme driving environments, so that the wheel assembly is always in contact with the ground, reducing the probability of the first spring member coming off, improving passability, and improving the situation of abnormal noise and impact feeling, thus improving comfort.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the suspension system in an embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the suspension system in an embodiment of the present invention. Figure 2 ;

[0021] Figure 3 This is an external view of the suspension system in an embodiment of this utility model.

[0022] Figure label:

[0023] 100. Suspension system; 10. First end cap; 11. First limiting part; 12. First stop part; 13. Guide part; 20. First spring member; 21. First rubber pad; 30. Second end cap; 31. Second limiting part; 32. Second stop part; 33. Third limiting groove; 34. Fitting part; 40. Second spring member; 41. Second rubber pad. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0028] The following is for reference. Figures 1-3 Description of a suspension system 100 according to an embodiment of the present utility model.

[0029] Reference Figures 1 to 3 According to one embodiment of the present invention, a suspension system 100 includes: a first end cap 10, a first spring member 20, a second end cap 30, and a second spring member 40.

[0030] The first end cap 10 is used to connect one of the vehicle body and the wheel assembly, and the first spring member 20 is used to connect the other of the vehicle body and the wheel assembly. The second end cap 30 is disposed between the first end cap 10 and the first spring member 20, and the second end cap 30 is connected to the end of the first spring member 20 facing the first end cap 10. The second spring member 40 is disposed between the second end cap 30 and the first end cap 10.

[0031] The first end cap 10 and the first spring member 20 are disposed between the vehicle body and the wheel assembly. When the vehicle travels on an uneven road surface, the first spring member 20 undergoes elastic deformation, causing the wheel assembly to fall to the ground.

[0032] In existing technology, a suspension system is typically installed between the vehicle body and the wheels. The main function of the suspension system is to ensure proper contact between the wheels and the ground and to absorb impacts and vibrations from uneven road surfaces. The suspension system includes springs and shock absorbers. Springs bear the vertical load from the wheels and provide elastic support. The main function of shock absorbers is to absorb impacts and vibrations from uneven road surfaces to improve vehicle comfort and handling. Especially in off-road or rough road conditions, shock absorbers mitigate the relative movement between the wheels and the vehicle body, ensuring vehicle stability and passenger comfort.

[0033] However, in certain extreme driving conditions, such as challenging off-road driving, mountain climbing, and traversing sandy or muddy terrain, wheel lift-off is quite common. When the wheel is completely off the ground, the shock absorber's effectiveness is greatly affected, causing it to fail to perform its intended function, and the vehicle's traction drops significantly. At this point, the wheel no longer generates sufficient friction with the ground, and the vehicle loses its normal driving ability. Especially during off-road driving, after the wheel has been off the ground for a period of time, the vehicle may not be able to regain sufficient ground contact, making it unable to pass obstacles or climb hills, and there is also the possibility of spring dislodgement.

[0034] In this embodiment of the present invention, through the cooperation of the first end cap 10, the second end cap 30 and the second spring member 40, the second spring member 40 can also undergo elastic deformation. In extreme driving environments, compared with the distance between the vehicle body and the wheel assembly in related technologies, the distance between the vehicle body and the wheel assembly in this embodiment of the present invention is larger, so that the wheel assembly is always in contact with the ground, thus improving passability.

[0035] Meanwhile, it should be noted that in related technologies, under extreme driving conditions, the wheel assembly bounces, and the shock absorber device experiences a lower limit impact, resulting in abnormal noise and impact sensation. In this embodiment of the present invention, through the cooperation of the first end cover 10, the second end cover 30 and the second spring member 40, even if the vehicle encounters the same driving environment, the lower limit impact will not occur, thereby improving the situation of abnormal noise and impact sensation and enhancing comfort.

[0036] Specifically, when the first end cover 10 is connected to the vehicle body, the first spring member 20 is connected to the wheel assembly; or, when the first end cover 10 is connected to the wheel assembly, the first spring member 20 is connected to the vehicle body.

[0037] According to the embodiment of the present utility model, the suspension system 100, through the cooperation of the first end cover 10, the second end cover 30 and the second spring member 40, increases the distance between the vehicle body and the wheel assembly in extreme driving environments, so that the wheel assembly is always in contact with the ground, reduces the probability of the first spring member 20 coming off, improves passability, and improves the situation of abnormal noise and impact feeling, thus improving comfort.

[0038] Reference Figure 1 , Figure 2 In some embodiments, the first end cap 10 has a first limiting part 11, the second end cap 30 has a second limiting part 31, and the two ends of the second spring member 40 are respectively connected to the first limiting part 11 and the second limiting part 31.

[0039] The first end cap 10 is provided with a first limiting part 11, and the second end cap 30 is provided with a second limiting part 31. The first limiting part 11 and the second limiting part 31 are respectively connected to the second spring member 40 to stabilize the second spring member 40.

[0040] In the above solution, the second spring member 40 is restricted by the first limiting part 11 and the second limiting part 31, so that the second spring member 40 is stable between the first end cover 10 and the second end cover 30, thereby improving stability.

[0041] Reference Figure 1 , Figure 2 In some embodiments, the first limiting part 11 is constructed as a first limiting groove, the second limiting part 31 is constructed as a second limiting groove, and the two ends of the second spring member 40 are respectively inserted into the first limiting groove and the second limiting groove.

[0042] The first limiting groove and the second limiting groove are groove structures. The inner wall of the first limiting groove restricts the movement of the second spring member 40, and the inner wall of the second limiting groove restricts the movement of the second spring member 40, thus stabilizing the second spring member 40.

[0043] In the above solution, the movement of the second spring member 40 is restricted by the first limiting groove and the second limiting groove, so that the second spring member 40 is stable between the first end cover 10 and the second end cover 30. The structure is simple and practical, and easy to assemble, which improves the versatility.

[0044] Reference Figure 1 , Figure 2 In some embodiments, the first end cap 10 includes a first stop portion 12 disposed at the edge of the first limiting groove, and the second end cap 30 includes a second stop portion 32 disposed at the edge of the second limiting groove. The first stop portion 12 is adapted to stop the second stop portion 32.

[0045] The first stop portion 12 is part of the first end cap 10, and the second stop portion 32 is part of the second end cap 30. When the first end cap 10 and the second end cap 30 approach each other, the first stop portion 12 and the second stop portion 32 approach each other until the first stop portion 12 abuts against the second stop portion 32, thus restricting the movement of the second end cap 30.

[0046] In the above solution, by setting the first stop part 12 and the second stop part 32, the movement of the second end cover 30 is stabilized by setting the first stop part 12 and the second stop part 32 separately. The overall structure is simple and practical, and the reliability is improved.

[0047] Specifically, the first stop portion 12 is configured to surround the first limiting groove, and the second stop portion 32 is configured to surround the second limiting groove.

[0048] Reference Figure 1 , Figure 2In some embodiments, the second end cap 30 is provided with a third limiting groove 33 on the side opposite to the second limiting groove, and the first spring member 20 is at least partially disposed in the third limiting groove 33.

[0049] The first spring member 20 is at least partially disposed within the third limiting groove 33, which restricts and stabilizes the first spring member 20.

[0050] In the above scheme, by setting a third limiting groove 33 on the side of the second end cover 30 away from the second limiting groove, the first spring member 20 is restricted by the third limiting groove 33. The first spring member 20 and the second spring member 40 are respectively located on opposite sides of the second end cover 30, so that the first spring member 20 and the second spring member 40 work stably, avoid mutual interference, and improve stability.

[0051] Reference Figure 1 , Figure 2 In some embodiments, the first end cap 10 is provided with a guide portion 13, and the second end cap 30 is provided with a mating portion 34. The guide portion 13 and the mating portion 34 cooperate to guide the movement of the second end cap 30.

[0052] The guide part 13 cooperates with the mating part 34 to guide the movement of the second end cover 30, so that the second end cover 30 moves away from or closer to the first end cover 10.

[0053] In the above scheme, by setting the guide part 13 and the mating part 34, the second end cover 30 moves more stably, thereby making the entire suspension system 100 operate stably and reliably, and improving stability.

[0054] Reference Figure 1 , Figure 2 In some embodiments, the guide part 13 is configured as a guide post, and the mating part 34 is configured as a mating hole, with the guide post inserted into the mating hole.

[0055] The guide post is inserted into the mating hole, and the outer wall of the guide post contacts the inner wall of the mating hole, so that the guide post moves along the extension direction of the mating hole.

[0056] In the above scheme, the second end cover 30 moves stably by cooperating with the guide post through the mating hole, thereby avoiding the shaking of the second end cover 30 and improving stability.

[0057] Reference Figure 1 , Figure 2 In other embodiments, the guide portion 13 is configured as a structural hole, and the mating portion 34 is configured as a mating post, which is inserted into the structural hole.

[0058] In some embodiments, the guide post is located at the center of the first end cap 10, and the second spring member 40 is sleeved on the guide post.

[0059] The first end cap 10 has a guide post at its center, which extends away from the first end cap 10. The second spring 40 is sleeved on the guide post, and the guide post is inside the second spring 40.

[0060] In the above scheme, the guide post is set at the center of the first end cover 10, and the second spring 40 is sleeved on the guide post, so that the overall force is more balanced, the second end cover 30 moves smoothly, and the smoothness is improved.

[0061] Reference Figure 1 , Figure 2 In some embodiments, at least one end of the first spring member 20 is provided with a first rubber pad 21.

[0062] The first spring member 20 has a first rubber pad 21 at at least one end. That is, the first spring member 20 may have a first rubber pad 21 at one end or both ends of the first spring member 20 may have a first rubber pad 21.

[0063] In the above solution, by providing a first rubber pad 21 on the first spring member 20, the first rubber pad 21 is used to prevent the first spring member 20 from making hard contact with the second end cap 30, thus avoiding damage.

[0064] In some other embodiments, at least one end of the second spring member 40 is provided with a second rubber pad 41.

[0065] The second spring member 40 has a second rubber pad 41 at at least one end. That is, the second spring member 40 may have a second rubber pad 41 at one end or both ends of the second spring member 40 may have a second rubber pad 41.

[0066] In the above solution, by providing a second rubber pad 41 on the second spring member 40, the second rubber pad 41 is used to prevent the second spring member 40 from making hard contact with the first end cover 10 or the second end cover 30, thereby avoiding damage.

[0067] In some other embodiments, at least one end of the first spring member 20 is provided with a first rubber pad 21, and at least one end of the second spring member 40 is provided with a second rubber pad 41.

[0068] The first spring member 20 has at least one end provided with a first rubber pad 21. That is, the first spring member 20 may have a first rubber pad 21 at one end or both ends of the first spring member 20 may have a first rubber pad 21. The second spring member 40 has at least one end provided with a second rubber pad 41. That is, the second spring member 40 may have a second rubber pad 41 at one end or both ends of the second spring member 40 may have a second rubber pad 41.

[0069] In the above solution, by providing a first rubber pad 21 on the first spring member 20, the first rubber pad 21 is used to prevent the first spring member 20 from making hard contact with the second end cover 30, thus avoiding damage. By providing a second rubber pad 41 on the second spring member 40, the second rubber pad 41 is used to prevent the second spring member 40 from making hard contact with the first end cover 10 or the second end cover 30, thus avoiding damage.

[0070] In some embodiments, the vehicle body is connected to a frame, and the first end cover 10 is connected to the frame by welding. In other embodiments, the first end cover 10 is directly connected to the vehicle body by welding.

[0071] In some specific embodiments, the stiffness of the first spring member 20 and the second spring member 40 remains constant. Compared with the integrated variable stiffness spring of related technologies, its stiffness characteristics are more linear and more user-friendly for driving.

[0072] In some specific embodiments, the suspension system 100 operates as follows:

[0073] In the initial state: due to the preload of the first spring member 20, the first spring member 20 will have a large reaction force acting on the vehicle body (approximately 4000N). At this time, if... Figure 1 As shown, the spring force presses the first end cap 10 and the second end cap 30 together; at this time, the second spring 40 is in a compressed state.

[0074] During the downward jump to the limit: During the downward jump, the spring preload continues to decrease. When it decreases to near the limit position, the force on the second spring 40 decreases due to the disappearance of the spring preload, and it begins to return to the initial state. The downward pressure is released, which moves the second end cover 30 downward, causing it to detach from the first end cover 10, thereby preventing the spring from coming out.

[0075] The aforementioned structure allows for complete non-intervention during smooth and stable driving conditions (the second end cover 30 is tightly fitted to the first end cover 10 through preload), thus ensuring that vehicle performance remains identical to that of the base model vehicle. Firstly, updated / replaced vehicles can utilize previous tuning schemes (vehicles with the same quality / type). This mechanism is a purely physical structure, without hydraulic / electrical components, resulting in better reliability / maintainability and less increased cost.

[0076] The vehicle according to an embodiment of the present invention includes the suspension system 100 described above.

[0077] According to the vehicle of this utility model embodiment, through the cooperation of the first end cover 10, the second end cover 30 and the second spring member 40, the distance between the vehicle body and the wheel assembly is increased in extreme driving environments, so that the wheel assembly is always in contact with the ground, reducing the probability of the first spring member 20 coming off, improving passability, and improving the situation of abnormal noise and impact feeling, thus improving comfort.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A suspension system, characterized in that, include: The first end cap (10) and the first spring member (20) are used to connect one of the vehicle body and the wheel assembly, and the first spring member (20) is used to connect the other of the vehicle body and the wheel assembly. The second end cap (30) is disposed between the first end cap (10) and the first spring member (20), and the second end cap (30) is connected to the end of the first spring member (20) near the first end cap (10); The second spring member (40) is disposed between the second end cap (30) and the first end cap (10).

2. The suspension system according to claim 1, characterized in that, The first end cap (10) has a first limiting part (11), the second end cap (30) has a second limiting part (31), and the two ends of the second spring member (40) are respectively connected to the first limiting part (11) and the second limiting part (31).

3. The suspension system according to claim 2, characterized in that, The first limiting part (11) is constructed as a first limiting groove, the second limiting part (31) is constructed as a second limiting groove, and the two ends of the second spring member (40) are respectively inserted into the first limiting groove and the second limiting groove.

4. The suspension system according to claim 3, characterized in that, The first end cap (10) includes a first stop portion (12), which is disposed on the edge of the first limiting groove. The second end cap (30) includes a second stop portion (32), which is disposed on the edge of the second limiting groove. The first stop portion (12) is adapted to stop against the second stop portion (32).

5. The suspension system according to claim 4, characterized in that, The second end cap (30) has a third limiting groove (33) on the side opposite to the second limiting groove, and the first spring (20) is at least partially disposed in the third limiting groove (33).

6. The suspension system according to any one of claims 1 to 5, characterized in that, The first end cap (10) is provided with a guide part (13), and the second end cap (30) is provided with a mating part (34). The guide part (13) and the mating part (34) cooperate to guide the movement of the second end cap (30).

7. The suspension system according to claim 6, characterized in that, The guide part (13) is constructed as a guide post, and the mating part (34) is constructed as a mating hole, and the guide post is inserted into the mating hole.

8. The suspension system according to claim 7, characterized in that, The guide post is located at the center of the first end cap (10), and the second spring (40) is sleeved on the guide post.

9. The suspension system according to claim 1, characterized in that, The first spring member (20) has a first rubber pad (21) at least one end, and / or the second spring member (40) has a second rubber pad (41) at least one end.

10. A vehicle, characterized in that, The suspension system (100) includes any one of claims 1 to 9.

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