Suspension assembly and vehicle

Abstract

The utility model discloses a suspension assembly and a vehicle, and belongs to the technical field of vehicles. Comprising a plate spring device and an air bag device, the plate spring device and the air bag device are both connected to a vehicle frame and connected to an axle, and the axle is arranged between the plate spring device and the air bag device in the height direction of a vehicle; wherein the plate spring device is arranged in the length direction of the vehicle, one end of the plate spring device is fixedly connected with the vehicle frame, the other end of the plate spring device is movably connected with the vehicle frame, and the arrangement direction of the air bag device intersects with the arrangement direction of the plate spring device. In the embodiment of the invention, the beneficial effects that the damage safety of the suspension assembly is improved, the number of parts in the suspension assembly is reduced, the assembly efficiency is improved, and meanwhile, the reliable service life of the suspension assembly can be effectively prolonged are achieved.

Description

Technical Field

[0001] This application belongs to the technical field of vehicles, and particularly relates to a suspension assembly and a vehicle. Background Art

[0002] With the increasing requirements of people for vehicle comfort, handling and safety, the use of air suspensions has become more and more popular.

[0003] In related technologies, most air suspensions use airbag assemblies to absorb bumps and impacts from the road surface, and the guide arms, thrust rods and stabilizer bars jointly bear longitudinal loads and lateral loads.

[0004] However, the above-mentioned air suspension cannot run after the airbag is damaged, and has more components, a complex structure, a heavy weight and a high cost. Summary of the Utility Model

[0005] The purpose of the embodiments of this application is to provide a suspension assembly and a vehicle, which can solve the problems that the airbag of the suspension assembly in the prior art fails and cannot be driven and there are many components.

[0006] To solve the above technical problems, this application is implemented as follows:

[0007] In a first aspect, the embodiments of this application provide a suspension assembly, including a leaf spring device, an airbag device, an axle and a vehicle frame. The leaf spring device and the airbag device are both connected to the vehicle frame, and the leaf spring device and the airbag device are both connected to the axle, and the axle is arranged between the leaf spring device and the airbag device along the height direction of the vehicle; wherein, the leaf spring device is arranged along the length direction of the vehicle, one end of the leaf spring device is fixedly connected to the vehicle frame, the other end of the leaf spring device is movably connected to the vehicle frame, and the arrangement direction of the airbag device intersects with the arrangement direction of the leaf spring device.

[0008] In the embodiments of this application, the leaf spring device and the airbag device are both arranged to achieve a damping effect by absorbing bumps and impacts from the road surface. The axle is arranged to connect the leaf spring device and the airbag device. Specifically, the axle is clamped between the leaf spring device and the airbag device along the height direction of the vehicle, and both the leaf spring device and the airbag device are connected to the axle. It can be understood that when the leaf spring device and the airbag device connected by the axle are subjected to external forces, force transmission can occur between them. Further, the leaf spring device is arranged along the length direction of the vehicle, and one end is fixedly connected to the vehicle frame and the other end is movably connected to the vehicle frame. It can be understood that since one end of the leaf spring device is movably connected to the vehicle frame, that is to say, the leaf spring device can also bear the role of the thrust rod.

[0009] In practical applications, since the leaf spring device and the airbag device are indirectly connected, and their installation directions intersect, and one end of the leaf spring device is movably connected to the vehicle frame. When an external force acts on the suspension assembly, both the airbag device and the leaf spring device can bear the load in the vehicle height direction. In addition to bearing the vertical load in the vehicle height direction, the leaf spring device can also bear the longitudinal load in the vehicle length direction and the lateral load in the vehicle width direction.

[0010] Furthermore, the structure of the leaf spring device has higher structural strength than that of the airbag device, and the leaf spring device is less likely to be damaged under the conditions of vehicle overload or harsh working conditions. If the airbag device is damaged under harsh working conditions, since the leaf spring device is not damaged yet, the vehicle can still drive to the repair station for repair, which has the beneficial effect of improving damage safety.

[0011] Still further, the installation of the leaf spring device can also bear the longitudinal load and the lateral load. That is to say, the leaf spring device can replace the functions of the thrust rod and the guide arm in the original suspension assembly, which has the beneficial effects of reducing the number of parts in the suspension assembly, improving the assembly efficiency, and at the same time effectively providing the reliability life of the suspension assembly. It should be noted that the installation direction of the shock absorber device and the installation direction of the leaf spring device can also be perpendicular to each other. In the case where the above installation directions are perpendicular to each other, the load not absorbed by the deformation of the shock absorber device will be transmitted vertically to the leaf spring device, which has the beneficial effect of protecting the vehicle frame and the axle.

[0012] It should be noted that the installation direction of the airbag device and the installation direction of the leaf spring device can also be perpendicular to each other. In the case where the above installation directions are perpendicular to each other, the load not absorbed by the deformation of the airbag device will be transmitted vertically to the leaf spring device, which has the beneficial effect of protecting the vehicle frame and the axle.

[0013] Optionally, in the embodiment of the present application, the leaf spring device includes a leaf spring, a first pin shaft, a leaf spring bracket, and a movable connecting member; the leaf spring includes a first end and a second end oppositely arranged along the vehicle length direction, the first end is fixedly connected to the vehicle frame through the first pin shaft, the leaf spring bracket is fixedly connected to the vehicle frame, the movable connecting member is connected between the second end and the leaf spring bracket, and the leaf spring can rotate around the connection center of the leaf spring bracket and the movable connecting member.

[0014] Optionally, in the embodiment of the present application, the airbag device includes an airbag, a first bracket, and a second bracket assembly; the first bracket is connected to the vehicle frame, the second bracket assembly is connected to the axle and the leaf spring device, the airbag is arranged along the vehicle height direction, one end of the airbag is fixedly connected to the first bracket, and the other end of the airbag is connected to the second bracket assembly.

[0015] Optionally, in the embodiments of the present application, the second bracket assembly includes a mounting plate, a second bracket, a first connecting member, and a second connecting member; the mounting plate is connected to the airbag, one side of the mounting plate facing away from the airbag is connected to the second bracket, the second bracket is connected to the leaf spring device through the first connecting member and the second connecting member, and the second bracket is fixedly connected to the axle.

[0016] Optionally, in the embodiments of the present application, the second bracket includes two sub-brackets oppositely arranged along the length direction of the vehicle, one side of the sub-bracket close to the airbag is connected to the mounting plate, and one side of the sub-bracket away from the airbag is connected to the first connecting member and the second connecting member.

[0017] Optionally, in the embodiments of the present application, the sub-bracket includes a first mounting portion, a connecting portion, and a second mounting portion. The first mounting portion and the second mounting portion are oppositely arranged along the height direction of the vehicle. The connecting portion is connected between the first mounting portion and the second mounting portion along the height direction of the vehicle. The first mounting portion and the second mounting portion extend in opposite directions along the length direction of the vehicle; wherein, the first mounting portion is connected to the mounting plate, and the second mounting portion is connected to the axle and the leaf spring device.

[0018] Optionally, in the embodiments of the present application, the first mounting portion is provided with a first mounting hole for connecting to the mounting plate; the second mounting portion is provided with a second mounting hole, and the first connecting member is connected to the leaf spring device and sequentially passes through the axle and the second mounting hole to be connected to the second connecting member.

[0019] Optionally, in the embodiments of the present application, the suspension assembly further includes a shock absorber device. One end of the shock absorber device is fixedly connected to the vehicle frame, and the other end of the shock absorber device is connected to the leaf spring device. The setting direction of the shock absorber device intersects with the setting direction of the leaf spring device.

[0020] Optionally, in the embodiments of the present application, the shock absorber device includes a third bracket, a fourth bracket, a shock absorber, and a second pin shaft; the third bracket is connected to the vehicle frame, the fourth bracket is connected to the leaf spring device, one end of the shock absorber is connected to the third bracket, and the other end of the shock absorber is connected to the fourth bracket through the second pin shaft.

[0021] In a second aspect, the embodiments of the present application further provide a vehicle, including: an axle; a vehicle frame; the suspension assembly as described above, and the suspension assembly is connected to the axle and the vehicle frame. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the suspension assembly in the embodiments of the present application;

[0023] Figure 2 It is a partially enlarged structural schematic diagram of the suspension assembly in the embodiment of the present application;

[0024] Figure 3 It is a structural schematic diagram of the second bracket assembly in the embodiment of the present application;

[0025] Figure 4 It is a structural schematic diagram of the sub-bracket in the embodiment of the present application.

[0026] Explanation of reference numerals:

[0027] 10. Leaf spring device; 11. Leaf spring; 12. First pin shaft; 13. Leaf spring bracket; 14. Movable connecting piece; 20. Airbag device; 21. Airbag; 22. First bracket; 23. Second bracket assembly; 231. Mounting plate; 232. Second bracket; 2321. Sub-bracket; 23211. First mounting part; 23212. Connecting part; 23213. Second mounting part; 23214. First mounting hole; 23215. Second mounting hole; 233. First connecting piece; 234. Second connecting piece; 30. Bridge; 40. Vehicle frame; 50. Shock absorber device; 51. Third bracket; 52. Fourth bracket; 53. Shock absorber; 54. Second pin shaft. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0029] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0030] Next, the suspension assembly and vehicle provided in the embodiments of the present application will be described in detail in conjunction with the accompanying drawings through specific embodiments and their application scenarios.

[0031] See Figures 1 to 4, embodiments of the present application provide a suspension assembly, connected to a bridge 30 and a vehicle frame 40, including a leaf spring device 10 and an airbag device 20. The leaf spring device 10 and the airbag device 20 are both connected to the vehicle frame 40, and the leaf spring device 10 and the airbag device 20 are both connected to the bridge 30, and the bridge 30 is disposed between the leaf spring device 10 and the airbag device 20 in the height direction of the vehicle; wherein, the leaf spring device 10 is disposed in the length direction of the vehicle, one end of the leaf spring device 10 is fixedly connected to the vehicle frame 40, the other end of the leaf spring device 10 is movably connected to the vehicle frame 40, and the setting direction of the airbag device 20 intersects with the setting direction of the leaf spring device 10.

[0032] In the embodiments of the present application, the leaf spring device 10 and the airbag device 20 are both arranged to achieve a damping effect by absorbing bumps and impacts from the road surface. The bridge 30 is arranged to connect the leaf spring device 10 and the airbag device 20. Specifically, the bridge 30 is clamped between the leaf spring device 10 and the airbag device 20 in the height direction of the vehicle, and both the leaf spring device 10 and the airbag device 20 are connected to the bridge 30. It can be understood that when the leaf spring device 10 and the airbag device 20 connected by the bridge 30 are subjected to an external force, load transfer can occur between them. Further, the leaf spring device 10 is arranged in the length direction of the vehicle, and one end is fixedly connected to the vehicle frame 40, and the other end is movably connected to the vehicle frame 40. It can be understood that since one end of the leaf spring device 10 is movably connected to the vehicle frame 40, that is to say, the leaf spring device 10 can also act as a thrust rod.

[0033] In practical applications, since the leaf spring device 10 and the airbag device 20 are indirectly connected and the setting directions intersect, and since one end of the leaf spring device 10 is movably connected to the vehicle frame 40. When the suspension assembly is subjected to an external force, both the airbag device 20 and the leaf spring device 10 can bear the load in the height direction of the vehicle, and in addition to bearing the vertical load in the height direction of the vehicle, the leaf spring device 10 can also bear the longitudinal load in the length direction of the vehicle and the lateral load in the width direction of the vehicle.

[0034] Further, the structure of the leaf spring device 10 has higher structural strength than that of the airbag device 20, and the leaf spring device 10 is less likely to be damaged under the condition of vehicle overload or harsh working conditions. If the airbag device 20 is damaged under harsh working conditions, since the leaf spring device 10 is not damaged yet, the vehicle can still drive to a repair station for repair, which has the beneficial effect of improving damage safety.

[0035] Furthermore, the leaf spring device 10 can also bear longitudinal loads (i.e., in the direction of the longitudinal beam of the vehicle frame 40) and lateral loads. That is to say, the leaf spring device 10 can replace the functions of the thrust rod and the guide arm in the original suspension assembly, which has the beneficial effects of reducing the number of parts in the suspension assembly, improving the assembly efficiency, and effectively providing the reliability life of the suspension assembly. It should be noted that the installation direction of the shock absorber device 50 and the installation direction of the leaf spring device 10 can also be perpendicular to each other. In the case where the above installation directions are perpendicular to each other, the load that the shock absorber device 50 fails to absorb through deformation will be transmitted to the leaf spring device 10 in the vertical direction, which has the beneficial effect of protecting the vehicle frame 40 and the axle 30.

[0036] It should be noted that the installation direction of the airbag device 20 and the installation direction of the leaf spring device 10 can also be perpendicular to each other. In the case where the above installation directions are perpendicular to each other, the load that the airbag device 20 fails to absorb through deformation will be transmitted to the leaf spring device 10 in the vertical direction, which has the beneficial effect of protecting the vehicle frame 40 and the axle 30.

[0037] Optionally, in the embodiment of the present application, the leaf spring device 10 includes a leaf spring 11, a first pin shaft 12, a leaf spring 11 bracket, and a movable connecting member 14; the leaf spring 11 includes a first end and a second end oppositely arranged along the length direction of the vehicle. The first end is fixedly connected to the vehicle frame 40 through the first pin shaft 12. The leaf spring 11 bracket is fixedly connected to the vehicle frame 40. The movable connecting member 14 is connected between the second end and the leaf spring 11 bracket. The leaf spring 11 can rotate around the connection center of the leaf spring 11 bracket and the movable connecting member 14.

[0038] In the embodiment of the present application, the leaf spring 11 is arranged to realize the load transfer between the airbag device 20 and also serve as a guiding function, and can guide the load in the suspension assembly. The leaf spring 11 bracket is arranged to realize the movable connection with the movable end of the leaf spring 11. Specifically, the leaf spring 11 bracket is fixedly connected to the vehicle frame 40, and the second end is connected to the leaf spring 11 bracket through the movable connecting member 14, so that the leaf spring 11 can rotate relative to the vehicle frame 40, while the first end is fixedly connected to the vehicle frame 40 through a pin shaft. Since the second end can rotate relative to the vehicle frame 40 and the leaf spring 11 is arranged along the length direction, it can be understood that the leaf spring device 10 can also bear longitudinal loads. In the embodiment of the present application, through the above arrangement, without the need to set other guiding elements, the leaf spring device 10 can bear longitudinal loads, which has the beneficial effects of reducing the number of parts in the suspension assembly, reducing the weight of the suspension assembly, and reducing costs.

[0039] Optionally, in the embodiments of the present application, the airbag device 20 includes an airbag 21, a first bracket 22, and a second bracket assembly 23; the first bracket 22 is connected to the vehicle frame 40, the second bracket assembly 23 is connected to the axle 30 and the leaf spring device 10, the airbag 21 is arranged along the height direction of the vehicle, one end of the airbag 21 is fixedly connected to the first bracket 22, and the other end of the airbag 21 is connected to the second bracket assembly 23.

[0040] In the embodiments of the present application, the airbag 21 is arranged to bear the longitudinal load, and can greatly absorb the bumps and loads from the road surface to achieve the shock absorption function of the suspension assembly. The first bracket 22 is arranged to indirectly connect the airbag 21 and the vehicle frame 40, and the second bracket assembly 23 is arranged to connect the airbag 21 to the axle 30 and the leaf spring device 10 respectively. In actual application, during the driving of the vehicle, the vehicle frame 40 will be subjected to bumps and loads from the road surface. The above-mentioned bumps and loads from the road surface are transmitted to the airbag 21 through the first bracket 22. Further, the airbag 21 will deform to a certain extent to absorb part of the load, and transmit the unabsorbed load to the axle 30 and the leaf spring device 10 through the second bracket 232, so that the leaf spring device 10 absorbs the remaining load, and further realizes the absorption of the load to improve the shock absorption degree of the suspension assembly.

[0041] Optionally, in the embodiments of the present application, the second bracket assembly 23 includes a mounting plate 231, a second bracket 232, a first connecting member 233, and a second connecting member 234; the mounting plate 231 is connected to the airbag 21, one side of the mounting plate 231 facing away from the airbag 21 is connected to the second bracket 232, the second bracket 232 is connected to the leaf spring device 10 through the first connecting member 233 and the second connecting member 234, and the second bracket 232 is fixedly connected to the axle 30.

[0042] In the embodiments of the present application, the mounting plate 231 is arranged to connect the airbag 21. Specifically, when the vehicle frame 40 is subjected to an external force, the load is first transmitted to the airbag 21 through the first bracket 22, and the airbag 21 deforms longitudinally to absorb part of the load. Since the mounting plate 231 is connected to the airbag 21, the unabsorbed load by the airbag 21 will be transmitted to the mounting plate 231 and then to the second bracket 232. Further, after the second bracket 232 receives the load, the load is transmitted to the leaf spring 11 on the leaf spring device 10 through the first connecting member 233 and the second connecting member 234, so that the leaf spring 11 further absorbs the remaining load.

[0043] It can be understood that the arrangement of the mounting plate 231 enables the load transfer between the mounting plate 231 and the airbag 21 to be surface contact transfer. Under the same load, the larger the contact surface, the smaller the force, which has the beneficial effect of protecting the airbag 21 from damage. On the other hand, the contact surface is also used to continue to transfer the remaining load downward, and the surface contact arrangement has the beneficial effect of relatively uniform and stable transfer.

[0044] Optionally, in the embodiments of the present application, the second bracket 232 includes two sub-brackets 2321 oppositely arranged along the length direction of the vehicle. One side of the sub-bracket 2321 close to the airbag 21 is connected to the mounting plate 231, and the side of the sub-bracket 2321 away from the airbag 21 is connected to the first connecting member 233 and the second connecting member 234.

[0045] In the embodiments of the present application, the arrangement of the two sub-brackets 2321 oppositely arranged along the length direction of the vehicle can improve the structural stability of the second bracket 232. At the same time, it can also improve the symmetry of load transfer, and has the effect of preventing the second bracket 232 from failing or being damaged due to uneven force. Further, compared with the arrangement of one sub-bracket 2321, the two oppositely arranged sub-brackets 2321 can divide the load transmitted to the second bracket 232 into two parts and transmit it downward. That is to say, the two sub-brackets 2321 can achieve the effect of force division, and thus have the beneficial effect of improving the load-bearing capacity of the second bracket 232.

[0046] Optionally, in the embodiments of the present application, the sub-bracket 2321 includes a first mounting portion 23211, a connecting portion 23212, and a second mounting portion 23213. The first mounting portion 23211 and the second mounting portion 23213 are oppositely arranged along the height direction of the vehicle. The connecting portion 23212 is connected between the first mounting portion 23211 and the second mounting portion 23213 along the height direction of the vehicle. The first mounting portion 23211 and the second mounting portion 23213 respectively extend in opposite directions along the length direction of the vehicle; wherein, the first mounting portion 23211 is connected to the mounting plate 231, and the second mounting portion 23213 is connected to the bridge 30 and the leaf spring device 10.

[0047] In the embodiments of the present application, the first mounting portion 23211 is provided for connecting with the mounting plate 231. It can be understood that the first mounting plate 231 can receive the load transmitted from the mounting plate 231. The second mounting portion 23213 is connected to the bridge 30 and the leaf spring device 10. It can be understood that the second mounting portion 23213 can transmit the received load to the bridge 30 and the leaf spring device 10. The connecting portion 23212 is provided to realize the connection between the first mounting portion 23211 and the second mounting portion 23213, and thus realize the load transfer on the sub-bracket 2321. Further, the first mounting portion 23211 and the second mounting portion 23213 respectively extend in opposite directions along the length direction of the vehicle. In practical applications, the arrangement of the first connecting portion 23212 and the second connecting portion 23212 extending in opposite directions along the length direction of the vehicle has the effect of force division in opposite directions compared with the first connecting portion 23212 and the second connecting portion 23212 extending in the same direction, and has the beneficial effect of preventing the sub-bracket 2321 from failing and being damaged due to its inability to bear the load when the load is transmitted in the same direction.

[0048] Optionally, in the embodiment of the present application, a first mounting hole 23214 is provided in the first mounting portion 23211, and the first mounting hole 23214 is used to connect with the mounting plate 231; a second mounting hole 23215 is provided in the second mounting portion 23213, and the first connecting member 233 is connected to the leaf spring device 10 and sequentially passes through the bridge 30 and the second mounting hole 23215 to be connected with the second connecting member 234.

[0049] In the embodiment of the present application, the setting of the first mounting hole 23214 is used to realize the connection between the first mounting portion 23211 and the mounting plate 231, so as to realize the transfer of the load from the airbag 21 to the mounting plate 231, and then from the mounting plate 231 to the first mounting portion 23211. The setting of the second mounting hole 23215 is used to provide a connection position for the first connecting member 233, so as to realize the connection between the leaf spring device 10 and the bridge 30. Specifically, the first connecting member 233 and the second connecting member 234 cooperate with each other. In practical applications, the first connecting member 233 is connected to the leaf spring device 10, sequentially passes through the bridge 30 and the second mounting hole 23215, and then is connected to the second connecting member 234, so as to realize the fixed connection between the leaf spring device 10 and the bridge 30.

[0050] It should be noted that the first connecting member 233 can be a U-bolt, and the second connecting member 234 can be a U-nut. The first connecting member 233 straddles the two ends of the width of the leaf spring 11 and is connected to the bridge 30 and the second mounting hole 23215, and is fixedly connected to the U-nut to realize the fastening connection between the above components.

[0051] Optionally, in the embodiment of the present application, the suspension assembly further includes a shock absorber device 50. One end of the shock absorber device 50 is fixedly connected to the vehicle frame 40, and the other end of the shock absorber device 50 is connected to the leaf spring device 10. The setting direction of the shock absorber device 50 intersects with the setting direction of the leaf spring device 10.

[0052] In the embodiment of the present application, the shock absorber device 50 is in the suspension assembly. Since the elastic element is impacted and vibrates, to improve the ride comfort of the vehicle, the shock absorber device 50 is installed in parallel with the elastic element in the suspension assembly. To attenuate the vibration, most of the shock absorber devices 50 adopted in the suspension assembly are hydraulic shock absorbers 53. Its working principle is that when relative movement occurs between the vehicle frame 40 and the axle 30 due to vibration, the piston in the shock absorber device 50 moves up and down, and the hydraulic fluid in the cavity of the shock absorber device 50 repeatedly flows from one cavity through different pores into another cavity. Specifically, one end of the shock absorber device 50 is fixedly connected to the vehicle frame 40. And in the embodiment of the present application, the vehicle frame 40 and the axle 30 are indirectly connected. That is to say, the shock absorber device 50 is also connected to the axle 30. When relative movement occurs between the vehicle frame and the axle 30 due to vibration, the shock absorber device 50 generates vibration to improve the ride comfort of the vehicle. And the intersecting arrangement direction of the shock absorber 53 and the leaf spring device 10 can further reduce the load transmitted to the leaf spring device 10, having the beneficial effect of protecting the leaf spring device 10 from being damaged and failing due to the load.

[0053] It should be noted that the arrangement direction of the shock absorber device 50 and the arrangement direction of the leaf spring device 10 can also be perpendicular to each other. In the case where the above-mentioned arrangement directions are perpendicular to each other, the load that the shock absorber 53 does not absorb through deformation will be transmitted to the leaf spring device 10 in the vertical direction, having the beneficial effect of protecting the vehicle frame 40 and the axle 30.

[0054] Optionally, in the embodiment of the present application, the shock absorber device 50 includes a third bracket 51, a fourth bracket 52, a shock absorber 53 and a second pin 54; the third bracket 51 is connected to the vehicle frame 40, the fourth bracket 52 is connected to the leaf spring device 10, one end of the shock absorber 53 is connected to the third bracket 51, and the other end of the shock absorber 53 is connected to the fourth bracket 52 through the second pin 54.

[0055] In the embodiment of the present application, the setting of the third bracket 51 is used to realize the connection between the shock absorber device 50 and the vehicle frame 40, and the setting of the fourth bracket 52 is used to realize the connection between the shock absorber device 50 and the leaf spring device 10. Specifically, the setting of the second pin 54 is used to realize the movable connection between the shock absorber 53 and the fourth bracket 52. In actual application, when the vehicle is impacted by an external force, the shock absorber device 50 moves up and down in the vertical direction to attenuate the vibration of the vehicle, and the setting of the second pin 54 is used to realize the movement of the above-mentioned shock absorber device 50.

[0056] Optionally, the embodiment of the present application also provides a vehicle, including: an axle 30; a vehicle frame 40; the suspension assembly as described above, and the suspension assembly is connected to the axle 30 and the vehicle frame 40.

[0057] The vehicle in the embodiment of the present application includes a bridge 30, a vehicle frame 40, and the suspension assembly as described above. The suspension assembly is connected to the bridge 30 and the vehicle frame 40. Since the vehicle includes the suspension assembly as described above, it also includes all the structural features and beneficial effects of the above suspension assembly, which will not be elaborated in this embodiment.

[0058] It should be noted that in this document, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also other elements not explicitly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0059] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A suspension assembly is connected to a bridge (30) and a vehicle frame (40), characterized in that, It includes a leaf spring device (10) and an airbag device (20). Both the leaf spring device (10) and the airbag device (20) are connected to the vehicle frame (40), and both the leaf spring device (10) and the airbag device (20) are connected to the axle (30). The axle (30) is arranged between the leaf spring device (10) and the airbag device (20) in the height direction of the vehicle. Among them, the leaf spring device (10) is arranged in the length direction of the vehicle. One end of the leaf spring device (10) is fixedly connected to the vehicle frame (40), and the other end of the leaf spring device (10) is movably connected to the vehicle frame (40). The setting direction of the airbag device (20) intersects with the setting direction of the leaf spring device (10).

2. The suspension assembly according to claim 1, characterized in that, The leaf spring device (10) includes a leaf spring (11), a first pin shaft (12), a leaf spring (11) bracket, and a movable connecting piece (14). The leaf spring (11) includes a first end and a second end arranged opposite to each other in the length direction of the vehicle. The first end and the vehicle frame (40) are fixedly connected through the first pin shaft (12). The leaf spring (11) bracket is fixedly connected to the vehicle frame (40). The movable connecting piece (14) is connected between the second end and the leaf spring (11) bracket. The leaf spring (11) can rotate around the connection center of the leaf spring (11) bracket and the movable connecting piece (14).

3. The suspension assembly according to claim 1, wherein, The airbag device (20) includes an airbag (21), a first bracket (22), and a second bracket assembly (23). The first bracket (22) is connected to the vehicle frame (40). The second bracket assembly (23) is connected to the axle (30) and the leaf spring device (10). The airbag (21) is arranged in the height direction of the vehicle. One end of the airbag (21) is fixedly connected to the first bracket (22), and the other end of the airbag (21) is connected to the second bracket assembly (23).

4. The suspension assembly according to claim 3, wherein, The second bracket assembly (23) includes a mounting plate (231), a second bracket (232), a first connecting piece (233), and a second connecting piece (234). The mounting plate (231) is connected to the airbag (21). The side of the mounting plate (231) facing away from the airbag (21) is connected to the second bracket (232). The second bracket (232) is connected to the leaf spring device (10) through the first connecting piece (233) and the second connecting piece (234). The second bracket (232) is fixedly connected to the axle (30).

5. The suspension assembly according to claim 4, wherein The second bracket (232) includes two sub-brackets (2321) arranged opposite to each other in the length direction of the vehicle. The side of the sub-bracket (2321) close to the airbag (21) is connected to the mounting plate (231), and the side of the sub-bracket (2321) away from the airbag (21) is connected to the first connecting piece (233) and the second connecting piece (234).

6. The suspension assembly according to claim 5, characterized in that, The sub-bracket (2321) includes a first mounting portion (23211), a connecting portion (23212), and a second mounting portion (23213). The first mounting portion (23211) and the second mounting portion (23213) are oppositely arranged in the height direction of the vehicle. The connecting portion (23212) is connected between the first mounting portion (23211) and the second mounting portion (23213) in the height direction of the vehicle. The first mounting portion (23211) and the second mounting portion (23213) extend reversely along the length direction of the vehicle; Wherein, the first mounting portion (23211) is connected to the mounting plate (231), and the second mounting portion (23213) is connected to the bridge (30) and the leaf spring device (10).

7. The suspension assembly according to claim 6, wherein, The first mounting portion (23211) is provided with a first mounting hole (23214) for connecting to the mounting plate (231); The second mounting portion (23213) is provided with a second mounting hole (23215). The first connecting member (233) is connected to the leaf spring device (10), passes through the bridge (30) and the second mounting hole (23215) in sequence, and is connected to the second connecting member (234).

8. The suspension assembly according to any one of claims 1 to 7, characterized in that, The suspension assembly further includes a shock absorber device (50). One end of the shock absorber device (50) is fixedly connected to the vehicle frame (40), and the other end of the shock absorber device (50) is connected to the leaf spring device (10). The setting direction of the shock absorber device (50) intersects with the setting direction of the leaf spring device (10).

9. The suspension assembly according to claim 8, wherein, The shock absorber device (50) includes a third bracket (51), a fourth bracket (52), a shock absorber (53), and a second pin shaft (54); The third bracket (51) is connected to the vehicle frame (40), the fourth bracket (52) is connected to the leaf spring device (10), one end of the shock absorber (53) is connected to the third bracket (51), and the other end of the shock absorber (53) is connected to the fourth bracket (52) through the second pin shaft (54).

10. A vehicle, characterized in that, Comprising: Bridge (30); Vehicle frame (40); The suspension assembly according to any one of claims 1 to 9, wherein the suspension assembly is connected to the bridge (30) and the vehicle frame (40).

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