Front suspension and vehicle

Abstract

The present disclosure relates to a front suspension and a vehicle, the front suspension comprising an upper arm assembly, a lower gas chamber support, and a lower arm assembly; the upper arm assembly comprising a first upper thrust rod, a second upper thrust rod, and a leaf spring structure, the first upper thrust rod and the second upper thrust rod extending in a front-rear direction and being spaced apart in a left-right direction; front ends of the first upper thrust rod and the second upper thrust rod being configured to be hingedly connected to a guide arm support, rear ends being hingedly connected to the lower gas chamber support; the leaf spring structure being connected between the first upper thrust rod and the second upper thrust rod; the lower arm assembly being arranged below the upper arm assembly, and a front end of the lower arm assembly being configured to be hingedly connected to the guide arm support, a rear end being hingedly connected to the lower gas chamber support; the lower gas chamber support being configured to be connected to a front axle. On the one hand, the rigidity of the leaf spring structure can resist lateral force and lateral displacement in the left-right direction, and on the other hand, the leaf spring structure can be elastically deformed without being easily twisted, and can also resist twisting.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicles, in particular to a front suspension and a vehicle. BACKGROUND

[0002] Suspension is the general term for all force transmission connecting devices between the frame (or body) of the vehicle and the axle (or wheel), which functions to transmit the force and torque between the wheel and the frame, and to buffer the impact force from the uneven road to the frame or body, and to reduce the vibration caused thereby, so as to ensure smooth driving of the vehicle.

[0003] In the related art, the front suspension often adopts a four-longitudinal-one-horizontal structure or a single-longitudinal-arm structure, both of which need to increase a horizontal thrust rod. Since the horizontal thrust rod is added, a horizontal connecting plate, a horizontal thrust and a horizontal connecting plate need to be added to strengthen the frame. In the design, the engine needs to be avoided, which makes the design more complex.

[0004] In addition, when the upper arm assembly of the front suspension is subjected to a horizontal force and a torsional force, it often cannot effectively resist the horizontal force, horizontal displacement and torsional force, resulting in a shimmy problem. SUMMARY

[0005] The purpose of the present disclosure is to provide a front suspension and a vehicle to solve the technical problems existing in the related art.

[0006] In order to achieve the above-mentioned purpose, the present disclosure provides a front suspension, which comprises an upper arm assembly, a guide arm support, an air bag lower support, a front axle and a lower arm assembly.

[0007] The upper arm assembly comprises a first upper thrust rod, a second upper thrust rod and a leaf spring structure, the first upper thrust rod and the second upper thrust rod extend in the front-rear direction and are arranged in the left-right direction.

[0008] The front end of the first upper thrust rod and the second upper thrust rod can be used to articulate with the guide arm support, and the rear end is articulated with the air bag lower support; the leaf spring structure is connected between the first upper thrust rod and the second upper thrust rod.

[0009] The lower arm assembly is arranged below the upper arm assembly, and the front end of the lower arm assembly can be used to articulate with the guide arm support, and the rear end is articulated with the air bag lower support.

[0010] The air bag lower support can be used to connect with the front axle.

[0011] Optionally, the leaf spring structure comprises a first leaf spring, a first end of the first leaf spring is connected with the first upper thrust rod and arranged on the upper surface thereof, and a second end of the first leaf spring is connected with the second upper thrust rod and arranged on the upper surface thereof; and / or,

[0012] The leaf spring structure comprises a second leaf spring, a first end of the second leaf spring is connected with the first upper push rod and arranged on the lower surface thereof, and a second end of the second leaf spring is connected with the second upper push rod and arranged on the lower surface thereof.

[0013] Optionally, a front part of the first upper push rod is provided with a first connecting part, and a front part of the second upper push rod is provided with a second connecting part.

[0014] The first ends of the first leaf spring and the second leaf spring are connected with the first connecting part, and the second ends of the first leaf spring and the second leaf spring are connected with the second connecting part.

[0015] The first leaf spring and the second leaf spring are arranged in an extending manner in the left-right direction, and the first leaf spring and the second leaf spring are oppositely arranged in the up-down direction.

[0016] Optionally, the first connecting part comprises a first I-beam, the first I-beam comprises a first upper mounting plate, a first lower mounting plate and a first connecting plate, the first upper mounting plate and the first lower mounting plate are oppositely and spacedly arranged in the up-down direction, and the first connecting plate connects the first upper mounting plate and the first lower mounting plate.

[0017] The first end of the first leaf spring is detachably connected to the first upper mounting plate, and the first end of the second leaf spring is detachably connected to the first lower mounting plate.

[0018] And / or, the second connecting part comprises a second I-beam, the second I-beam comprises a second upper mounting plate, a second lower mounting plate and a second connecting plate, the second upper mounting plate and the second lower mounting plate are oppositely and spacedly arranged in the up-down direction, and the second connecting plate connects the second upper mounting plate and the second lower mounting plate.

[0019] The second end of the first leaf spring is detachably connected to the second upper mounting plate, and the second end of the second leaf spring is detachably connected to the second lower mounting plate.

[0020] Optionally, the first end of the first leaf spring is formed with at least two first leaf spring holes, the first end of the second leaf spring is formed with at least two second leaf spring holes, the first upper mounting plate is formed with at least two first upper mounting holes, the first lower mounting plate is formed with at least two first lower mounting holes, the upper arm assembly further comprises at least two first fastening assemblies, the first fastening assembly comprises a first fastening bolt and a first fastening nut, the first fastening bolt can be arranged through the corresponding first leaf spring hole, first upper mounting hole, first lower mounting hole and second leaf spring hole to be connected with the first fastening nut; and / or,

[0021] The second end of the first leaf spring has at least two third leaf spring holes, the second end of the second leaf spring has at least two fourth leaf spring holes, the second upper mounting plate has at least two second upper mounting holes, and the second lower mounting plate has at least two second lower mounting holes. The upper arm assembly also includes at least two second fastening components, each of which includes a second fastening bolt and a second fastening nut. The second fastening bolt can pass through the corresponding third leaf spring holes, the second upper mounting holes, the second lower mounting holes, and the fourth leaf spring holes to connect with the second fastening nut.

[0022] Optionally, the first connecting portion is integrally cast on the front part of the first upper thrust rod; and / or, the second connecting portion is integrally cast on the front part of the second upper thrust rod.

[0023] Optionally, the lower arm assembly includes a first lower thrust rod and a second lower thrust rod, the first lower thrust rod and the second lower thrust rod extending in the front-rear direction and spaced apart in the left-right direction; the front ends of the first lower thrust rod and the second lower thrust rod can be hinged to the guide arm bracket, and the rear ends are hinged to the airbag lower bracket.

[0024] Optionally, the front suspension further includes a shock absorber, which includes a first shock absorber and a second shock absorber, and the lower airbag support includes a first lower airbag support and a second lower airbag support.

[0025] The first shock absorber is disposed on the lower support of the first airbag in a vertical direction and its upper end is used to connect with the vehicle frame.

[0026] The second shock absorber extends vertically and is disposed on the lower support of the second airbag, with its upper end used for connection to the vehicle frame;

[0027] The rear ends of the first upper thrust rod and the first lower thrust rod are hinged to the lower support of the first airbag;

[0028] The rear ends of the second upper thrust rod and the second lower thrust rod are hinged to the lower support of the second airbag.

[0029] Optionally, the first upper thrust rod and the first lower thrust rod are spaced apart and arranged opposite each other in the vertical direction, and the second upper thrust rod and the second lower thrust rod are spaced apart and arranged opposite each other in the vertical direction.

[0030] This disclosure also provides a vehicle, the vehicle including a guide arm bracket, a front axle, a frame, and the aforementioned front suspension;

[0031] The guide arm bracket includes a first guide arm bracket and a second guide arm bracket spaced apart in the left-right direction. The front end of the first upper thrust rod is hinged to the first guide arm bracket, and the front end of the second upper thrust rod is hinged to the second guide arm bracket. Both the first guide arm bracket and the second guide arm bracket are connected to the vehicle frame.

[0032] In the above technical solution, firstly, the front and rear ends of the first upper thrust rod and the second upper thrust rod are respectively hinged to the guide arm bracket and the lower airbag bracket, and the front and rear ends of the lower arm assembly are also respectively hinged to the guide arm bracket and the lower airbag bracket. Thus, the upper arm assembly and the lower arm assembly can transmit force in the front and rear directions, that is, they can play a longitudinal guiding role.

[0033] Secondly, the leaf spring structure is connected between the first upper thrust rod and the second upper thrust rod. When the front axle of the vehicle is subjected to lateral force and transmitted to the upper arm assembly through the lower support of the airbag, the leaf spring structure has a certain rigidity in the lateral direction, which can effectively resist lateral force and lateral displacement.

[0034] Additionally, it should be noted that for shafts or rods with a circular cross-section, when both ends are subjected to equal and opposite torques (i.e., torsional moments), the shaft or rod may undergo torsional deformation. The specific effects of torsional deformation include the rotation of the rod's cross-section around its axis and the shear stress generated within the material.

[0035] When the front axle of the vehicle twists and transmits the torsion to the upper arm assembly, one of the first and second upper thrust rods is subjected to an upward load, and the other is subjected to a downward load. Because the leaf spring structure is not constructed with a circular cross section compared to the rod structure, it is not easy to undergo torsional deformation. When the two sides are subjected to forces in different directions, it will bend and deform, that is, generate elastic force, thereby achieving the function of anti-torsion, forming the function of a stabilizer, and avoiding the occurrence of swaying problems.

[0036] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0037] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0038] Figure 1 This is a schematic diagram of the front suspension according to one embodiment of the present disclosure.

[0039] Figure 2 This is a schematic diagram of the upper arm assembly of the front suspension according to one embodiment of the present disclosure.

[0040] Figure 3 This is a schematic diagram of the structure of the first and second upper thrust rods of the upper arm assembly according to one embodiment of the present disclosure.

[0041] Figure 4 This is a schematic diagram of the structure of the first and second leaf springs of the upper arm assembly according to one embodiment of the present disclosure.

[0042] Explanation of reference numerals in the attached figures

[0043] 1. Upper arm assembly;

[0044] 11. First upper thrust rod; 110. First connecting part; 1101. First upper mounting plate; 1102. First lower mounting plate; 1103. First connecting plate; 1104. First upper mounting hole; 1105. First lower mounting hole;

[0045] 12. Second upper thrust rod; 120. Second connecting part; 1201. Second upper mounting plate; 1202. Second lower mounting plate; 1203. Second connecting plate; 1204. Second upper mounting hole; 1205. Second lower mounting hole;

[0046] 13. Leaf spring structure; 131. First leaf spring; 1311. First leaf spring hole; 1312. Third leaf spring hole; 132. Second leaf spring; 1321. Second leaf spring hole; 1322. Fourth leaf spring hole;

[0047] 14. First fastening assembly; 15. Second fastening assembly;

[0048] 2. Guide arm bracket; 21. First guide arm bracket; 22. Second guide arm bracket;

[0049] 3. Sub-airbag support; 31. First airbag support; 32. Second airbag support;

[0050] 4. Front axle;

[0051] 5. Shock absorber; 51. First shock absorber; 52. Second shock absorber;

[0052] 6. Lower arm assembly; 61. First lower thrust rod; 62. Second lower thrust rod;

[0053] 7. Frame. Detailed Implementation

[0054] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0055] In this disclosure, unless otherwise stated, directional terms such as "up," "down," "left," "right," "front," and "rear" generally refer to the "up," "down," "left," "right," "front," and "rear" as defined under normal vehicle use conditions. For details, please refer to [link / reference needed]. Figure 1 As shown; the terms used, such as "first" and "second", are only used to distinguish one element from another and do not have any order or importance.

[0056] Reference Figures 1 to 4 As shown, this disclosure provides a front suspension, which includes an upper arm assembly 1, a lower airbag support 3, a front axle 4, and a lower arm assembly 6. The upper arm assembly 1 includes a first upper thrust rod 11, a second upper thrust rod 12, and a leaf spring structure 13. The first upper thrust rod 11 and the second upper thrust rod 12 extend in the front-rear direction and are spaced apart in the left-right direction. The front ends of the first upper thrust rod 11 and the second upper thrust rod 12 can be hinged to the guide arm support 2, and the rear ends are hinged to the lower airbag support 3. The leaf spring structure 13 is connected between the first upper thrust rod 11 and the second upper thrust rod 12. The lower arm assembly 6 is disposed below the upper arm assembly 1, and the front end of the lower arm assembly 6 can be hinged to the guide arm support 2, and the rear end is hinged to the lower airbag support 3. The lower airbag support 3 can be connected to the front axle 4.

[0057] In the above technical solution, firstly, the front and rear ends of the first upper thrust rod 11 and the second upper thrust rod 12 are respectively hinged to the guide arm bracket 2 and the lower airbag bracket 3, and the front and rear ends of the lower arm assembly 6 are also respectively hinged to the guide arm bracket 2 and the lower airbag bracket 3. Thus, the upper arm assembly 1 and the lower arm assembly 6 can transmit force in the front and rear directions, that is, they can play a longitudinal guiding role.

[0058] Secondly, the leaf spring structure 13 is connected between the first upper thrust rod 11 and the second upper thrust rod 12. When the front axle 4 of the vehicle is subjected to a lateral force, it is transmitted to the upper arm assembly 1 through the lower airbag bracket 3 (see...). Figure 2 When the arrow indicates that the leaf spring structure 13 has a certain rigidity in the lateral direction, it can effectively resist lateral force and lateral displacement.

[0059] Additionally, it should be noted that for shafts or rods with a circular cross-section, when both ends are subjected to equal and opposite torques (i.e., torsional moments), the shaft or rod may undergo torsional deformation. The specific effects of torsional deformation include the rotation of the rod's cross-section around its axis and the shear stress generated within the material.

[0060] Reference Figure 2 As shown, when the front axle 4 of the vehicle twists and transmits the twist to the upper arm assembly 1, one of the first upper thrust rod 11 and the second upper thrust rod 12 is subjected to an upward load (see...). Figure 2(As indicated by the upward arrow), the other is subjected to a downward load (see...) Figure 2 (As shown by the downward arrow), because the leaf spring structure 13, compared to the rod structure, does not have a circular cross-section, it is not easy to undergo torsional deformation. When the two sides are subjected to forces in different directions, it will bend and deform, that is, generate elastic force, thereby achieving the function of anti-torsion, forming the function of a stabilizing rod, and avoiding the occurrence of oscillation problems.

[0061] For the leaf spring structure 13, a thicker and wider design can result in a greater angular stiffness. When subjected to torsional loads, the leaf spring structure 13 has a stronger ability to resist angular changes, making the structure more stable and less prone to angular deformation due to external forces.

[0062] In general, the upper arm assembly 1 and the lower arm assembly 2 can play a longitudinal guiding role; as for the leaf spring structure 13, on the one hand, the rigidity of the leaf spring structure 13 can play a role in resisting lateral force and lateral displacement in the left and right directions; on the other hand, the characteristic that the leaf spring structure 13 is not easy to undergo torsional deformation can be used to achieve anti-torsion through bending deformation, thereby playing the role of a stabilizer.

[0063] Optionally, refer to Figure 1 , Figure 2 as well as Figure 4 As shown, the aforementioned leaf spring structure 13 may include a first leaf spring 131, with its first end connected to and disposed on its upper surface by the first upper thrust rod 11, and its second end connected to and disposed on its upper surface by the second upper thrust rod 12. And / or, the leaf spring structure 13 may include a second leaf spring 132, with its first end connected to and disposed on its lower surface by the first upper thrust rod 11, and its second end connected to and disposed on its lower surface by the second upper thrust rod 12. By configuring the leaf spring structure 13 as a first leaf spring 131 and / or a second leaf spring 132, elastic deformation can occur under torsional force, preventing torsional deformation and acting as a stabilizing rod. However, this disclosure does not limit the specific structural design of the leaf spring structure 13.

[0064] Furthermore, the aforementioned first leaf spring 131 and / or second leaf spring 132 can be made of spring steel. Spring steel has higher strength and hardness, and can resist greater bending and torsional forces, thus giving the first leaf spring 131 and / or second leaf spring 132 better resilience and stability. However, this disclosure does not limit the specific material of the first leaf spring 131 and / or second leaf spring 132. In addition, the thicker and wider the first leaf spring 131 and / or second leaf spring 132, the more effectively the angular stiffness can be improved.

[0065] Optionally, refer to Figure 3As shown, a first connecting portion 110 is provided at the front of the first upper thrust rod 11, and a second connecting portion 120 is provided at the front of the second upper thrust rod 12. The first end of the first leaf spring 131 and the first end of the second leaf spring 132 are both connected to the first connecting portion 110, and the second end of the first leaf spring 131 and the second end of the second leaf spring 132 are both connected to the second connecting portion 120. The first leaf spring 131 and the second leaf spring 132 both extend in the left-right direction and are arranged opposite each other in the up-down direction. By providing the first connecting portion 110 and the second connecting portion 120, it is convenient to connect the first leaf spring 131 and the second leaf spring 132, improving the ease of connection. The first connecting portion 110 and the second connecting portion 120 can be constructed in any suitable shape and structure, and this disclosure does not limit them.

[0066] In one implementation, reference is made to Figure 2 and Figure 3 As shown, the first connecting part 110 includes a first I-beam, which includes a first upper mounting plate 1101, a first lower mounting plate 1102, and a first connecting plate 1103. The first upper mounting plate 1101 and the first lower mounting plate 1102 are arranged opposite to each other in the vertical direction and are spaced apart. The first connecting plate 1103 connects the first upper mounting plate 1101 and the first lower mounting plate 1102. The first end of the first leaf spring 131 is detachably connected to the first upper mounting plate 1101, and the first end of the second leaf spring 132 is detachably connected to the first lower mounting plate 1102.

[0067] In this embodiment, by setting the first connecting portion 110 as a first I-beam, the first upper mounting plate 1101 and the first lower mounting plate 1102 of the first I-beam facilitate the connection between the first leaf spring 131 and the second leaf spring 132. In addition, the design of this first I-beam structure can effectively improve the structural strength of the connection and avoid reducing the overall strength of the first upper thrust rod 11 due to the setting of the first connecting portion 110.

[0068] In another embodiment, refer to Figure 2 and Figure 3 As shown, the second connecting part 120 includes a second I-beam, which includes a second upper mounting plate 1201, a second lower mounting plate 1202, and a second connecting plate 1203. The second upper mounting plate 1201 and the second lower mounting plate 1202 are arranged opposite to each other and spaced apart in the vertical direction, and the second connecting plate 1203 connects the second upper mounting plate 1201 and the second lower mounting plate 1202. The second end of the first leaf spring 131 is detachably connected to the second upper mounting plate 1201, and the second end of the second leaf spring 132 is detachably connected to the second lower mounting plate 1202.

[0069] In this embodiment, by setting the second connecting portion 120 as a second I-beam, the second upper mounting plate 1201 and the second lower mounting plate 1202 of the first I-beam facilitate the connection between the first leaf spring 131 and the second leaf spring 132. In addition, the design of the second I-beam can effectively improve the structural strength of the connection and avoid reducing the overall strength of the second upper thrust rod 12 due to the setting of the second connecting portion 120.

[0070] In other implementations, refer to Figure 4 As shown, the first leaf spring 131 has at least two first leaf spring holes 1311 at its first end, and the second leaf spring 132 has at least two second leaf spring holes 1321 at its first end; the first upper mounting plate 1101 has at least two first upper mounting holes 1104, and the first lower mounting plate 1102 has at least two first lower mounting holes 1105; the upper arm assembly 1 also includes at least two first fastening components 14. The first leaf spring holes 1311, first upper mounting holes 1104, first lower mounting holes 1105, second leaf spring holes 1321, and first fastening components 14 are correspondingly arranged. Each first fastening component 14 includes a first fastening bolt and a first fastening nut. The first fastening bolt can pass through the corresponding first leaf spring hole 1311, first upper mounting hole 1104, first lower mounting hole 1105, and second leaf spring hole 1321 to connect with the first fastening nut.

[0071] In this embodiment, by providing the first leaf spring hole 1311, the first upper mounting hole 1104, the first lower mounting hole 1105, and the second leaf spring hole 1321, and by providing the first fastening assembly 14, the first leaf spring 131 and the second leaf spring 132 can be detachably connected to the first connecting part 110, facilitating installation and disassembly. However, this disclosure does not limit the specific connection method. In other embodiments, for example, a snap-fit ​​connection can also be used, which will not be elaborated here.

[0072] In addition, the number of the first leaf spring hole 1311, the first upper mounting hole 1104, the first lower mounting hole 1105, the second leaf spring hole 1321, and the first fastening assembly 14 is limited to at least two, which can ensure resistance to lateral forces and lateral displacements.

[0073] If the first leaf spring hole 1311, the first upper mounting hole 1104, the first lower mounting hole 1105, the second leaf spring hole 1321, and the first fastening assembly 14 are configured with only one of the first leaf spring 131 and the second leaf spring 132, then when subjected to lateral force, the first leaf spring 131 and the second leaf spring 132 will rotate around the fastening bolt of the first fastening assembly 14, and will not be able to effectively resist the lateral force.

[0074] For example, the number of the first upper mounting hole 1104, the first lower mounting hole 1105, the second leaf spring hole 1321, and the first fastening assembly 14 can be set to four. The four first upper mounting holes 1104 can be arranged in a square shape, the four first lower mounting holes 1105 can be arranged in a square shape, and the four second leaf spring holes 1321 can be arranged in a square shape. However, this disclosure does not limit the shape of the holes. While improving the installation strength, it can also improve the resistance to lateral forces.

[0075] In other embodiments, refer to Figure 4 As shown, the second end of the first leaf spring 131 has at least two third leaf spring holes 1312, the second end of the second leaf spring 132 has at least two fourth leaf spring holes 1322, the second upper mounting plate 1201 has at least two second upper mounting holes 1204, and the second lower mounting plate 1202 has at least two second lower mounting holes 1205. The upper arm assembly 1 also includes at least two second fastening components 15, each of which includes a second fastening bolt and a second fastening nut. The second fastening bolt can pass through the third leaf spring hole 1312, the second upper mounting hole 1204, the second lower mounting hole 1205, and the fourth leaf spring hole 1322 to connect with the second fastening nut.

[0076] In this embodiment, by providing the third leaf spring hole 1312, the second upper mounting hole 1204, the second lower mounting hole 1205, and the fourth leaf spring hole 1322, and only providing the second fastening assembly 15, both the first leaf spring 131 and the second leaf spring 132 can be detachably connected to the second connecting part 120, facilitating installation and disassembly. However, this disclosure does not limit the specific connection method. In other embodiments, for example, a snap-fit ​​connection can also be used, which will not be elaborated here.

[0077] In addition, the number of the third leaf spring hole 1312, the second upper mounting hole 1204, the second lower mounting hole 1205, the fourth leaf spring hole 1322, and the second fastening assembly 15 is limited to at least two, which can ensure resistance to lateral forces and lateral displacements.

[0078] If only one of the third leaf spring hole 1312, the second upper mounting hole 1204, the second lower mounting hole 1205, the fourth leaf spring hole 1322, and the second fastening assembly 15 is provided, then when subjected to lateral force, the first leaf spring 131 and the second leaf spring 132 will rotate around the fastening bolt of the second fastening assembly 15, and will not be able to effectively resist the lateral force.

[0079] For example, the number of the third leaf spring hole 1312, the second upper mounting hole 1204, the second lower mounting hole 1205, the fourth leaf spring hole 1322, and the second fastening assembly 15 can be set to four. The four second upper mounting holes 1204 can be arranged in a square shape, the two second lower mounting holes 1205 can be arranged in a square shape, and the four fourth leaf spring holes 1322 can be arranged in a square shape. However, this disclosure does not limit the shape of the holes. It can improve the installation strength while also improving the resistance to lateral forces.

[0080] Optionally, the first connecting portion 110 is integrally cast on the front part of the first upper thrust rod 11; and / or, the second connecting portion 120 is integrally cast on the front part of the second upper thrust rod 12. This facilitates processing and forming while effectively improving the structural strength of the first upper thrust rod 11 and the second upper thrust rod 12.

[0081] Optionally, refer to Figure 1 As shown, the lower arm assembly 6 includes a first lower thrust rod 61 and a second lower thrust rod 62; the guide arm bracket 2 includes a first guide arm bracket 21 and a second guide arm bracket 22; the airbag lower bracket 3 includes a first airbag lower bracket 31 and a second airbag lower bracket 32; and the shock absorber 5 includes a first shock absorber 51 and a second shock absorber 52. The first shock absorber 51 is disposed on the first airbag lower bracket 31, and the second shock absorber 52 is disposed on the second airbag lower bracket 32. The front ends of the first upper thrust rod 11 and the first lower thrust rod 61 are both hinged to the first guide arm bracket 21, and the rear ends of the first upper thrust rod 11 and the first lower thrust rod 61 are both hinged to the first airbag lower bracket 31. The front ends of the second upper thrust rod 12 and the second lower thrust rod 62 are both hinged to the second guide arm bracket 22, and the rear ends of the second upper thrust rod 12 and the second lower thrust rod 62 are both hinged to the second airbag lower bracket 32.

[0082] In this embodiment, the first damping element 51 and the second damping element 52 can support vertical loads and mitigate and suppress vibrations and impacts caused by uneven road surfaces. They can include leaf springs, coil springs, torsion bar springs, air springs, and rubber springs, etc. For example, in this disclosure, the first damping element 51 and the second damping element 52 can be constructed as air springs, thus the front suspension is constructed as a front air suspension; however, this disclosure does not limit the specific type. Furthermore, the hinge method between the various structures can be a ball joint, but this disclosure does not limit the specific connection method.

[0083] In one embodiment, reference is made to... Figure 1As shown, both the first lower thrust rod 61 and the second lower thrust rod 62 extend in the front-to-back direction, and are spaced apart in the left-to-right direction. The first upper thrust rod 11 and the first lower thrust rod 61 are spaced apart and opposite each other in the vertical direction, as are the second upper thrust rod 12 and the second lower thrust rod 62. This improves the symmetry and stability of the overall front suspension, thereby enhancing its performance.

[0084] This disclosure also provides a vehicle, which includes a guide arm bracket 2, a front axle 4, a frame 7, and the aforementioned front suspension; the guide arm bracket 2 includes a first guide arm bracket 21 and a second guide arm bracket 22 spaced apart in the left-right direction, the front end of a first upper thrust rod 11 is hinged to the first guide arm bracket 21, and the front end of a second upper thrust rod 12 is hinged to the second guide arm bracket 22; both the first guide arm bracket 21 and the second guide arm bracket 21 are connected to the frame 7.

[0085] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0086] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0087] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A front suspension, characterized in that, The front suspension includes an upper arm assembly (1), an airbag lower support (3), and a lower arm assembly (6). The upper arm assembly (1) includes a first upper thrust rod (11), a second upper thrust rod (12), and a leaf spring structure (13). The first upper thrust rod (11) and the second upper thrust rod (12) extend in the front-back direction and are spaced apart in the left-right direction. The front ends of the first upper thrust rod (11) and the second upper thrust rod (12) can be hinged to the guide arm bracket (2), and the rear ends are hinged to the airbag lower bracket (3); the leaf spring structure (13) is connected between the first upper thrust rod (11) and the second upper thrust rod (12); The lower arm assembly (6) is located below the upper arm assembly (1), and the front end of the lower arm assembly (6) can be hinged to the guide arm bracket (2), and the rear end is hinged to the airbag lower bracket (3). The airbag underarm (3) can be used to connect to the front axle (4); The leaf spring structure (13) includes a first leaf spring (131), the first end of which is connected to the first upper thrust rod (11) and disposed on its upper surface, and the second end of which is connected to the second upper thrust rod (12) and disposed on its upper surface; and / or, The leaf spring structure (13) includes a second leaf spring (132), the first end of which is connected to the first upper thrust rod (11) and disposed on its lower surface, and the second end of which is connected to the second upper thrust rod (12) and disposed on its lower surface.

2. The front suspension according to claim 1, characterized in that, The first upper thrust rod (11) is provided with a first connecting part (110) at the front, and the second upper thrust rod (12) is provided with a second connecting part (120) at the front. The first ends of the first leaf spring (131) and the second leaf spring (132) are connected to the first connecting part (110), and the second ends of the first leaf spring (131) and the second leaf spring (132) are connected to the second connecting part (120); The first leaf spring (131) and the second leaf spring (132) extend in the left-right direction and are arranged opposite each other in the up-down direction.

3. The front suspension according to claim 2, characterized in that, The first connecting part (110) includes a first I-beam, the first I-beam includes a first upper mounting plate (1101), a first lower mounting plate (1102) and a first connecting plate (1103), the first upper mounting plate (1101) and the first lower mounting plate (1102) are arranged opposite to each other and spaced apart in the vertical direction, and the first connecting plate (1103) connects the first upper mounting plate (1101) and the first lower mounting plate (1102). The first end of the first leaf spring (131) is detachably connected to the first upper mounting plate (1101), and the first end of the second leaf spring (132) is detachably connected to the first lower mounting plate (1102). And / or, the second connecting part (120) includes a second I-beam, the second I-beam including a second upper mounting plate (1201), a second lower mounting plate (1202) and a second connecting plate (1203), the second upper mounting plate (1201) and the second lower mounting plate (1202) are arranged opposite to each other and spaced apart in the vertical direction, and the second connecting plate (1203) connects the second upper mounting plate (1201) and the second lower mounting plate (1202); The second end of the first leaf spring (131) is detachably connected to the second upper mounting plate (1201), and the second end of the second leaf spring (132) is detachably connected to the second lower mounting plate (1202).

4. The front suspension according to claim 3, characterized in that, The first leaf spring (131) has at least two first leaf spring holes (1311) at its first end, and the second leaf spring (132) has at least two second leaf spring holes (1321) at its first end; the first upper mounting plate (1101) has at least two first upper mounting holes (1104), and the first lower mounting plate (1102) has at least two first lower mounting holes (1105); the upper arm assembly (1) further includes at least two first fastening components (14), each first fastening component (14) including a first fastening bolt and a first fastening nut, wherein the first fastening bolt can pass through the corresponding first leaf spring hole (1311), the first upper mounting hole (1104), the first lower mounting hole (1105), and the second leaf spring hole (1321) to connect with the first fastening nut; and / or, The second end of the first leaf spring (131) has at least two third leaf spring holes (1312), the second end of the second leaf spring (132) has at least two fourth leaf spring holes (1322), the second upper mounting plate (1201) has at least two second upper mounting holes (1204), and the second lower mounting plate (1202) has at least two second lower mounting holes (1205); the upper arm assembly (1) also includes at least two second fastening components (15), the second fastening components (15) include a second fastening bolt and a second fastening nut, the second fastening bolt can pass through the corresponding third leaf spring hole (1312), the second upper mounting hole (1204), the second lower mounting hole (1205) and the fourth leaf spring hole (1322) to connect with the second fastening nut.

5. The front suspension according to any one of claims 2-4, characterized in that, The first connecting part (110) is integrally cast on the front part of the first upper thrust rod (11); and / or, the second connecting part (120) is integrally cast on the front part of the second upper thrust rod (12).

6. The front suspension according to claim 1, characterized in that, The lower arm assembly (6) includes a first lower thrust rod (61) and a second lower thrust rod (62). The first lower thrust rod (61) and the second lower thrust rod (62) extend in the front-to-back direction and are spaced apart in the left-to-right direction. The front ends of the first lower thrust rod (61) and the second lower thrust rod (62) can be hinged to the guide arm bracket (2), and the rear ends are hinged to the airbag lower bracket (3).

7. The front suspension according to claim 6, characterized in that, The front suspension also includes a shock absorber (5), which includes a first shock absorber (51) and a second shock absorber (52), and the airbag lower support (3) includes a first airbag lower support (31) and a second airbag lower support (32). The first shock absorber (51) is provided on the lower bracket (31) of the first airbag in the vertical direction and its upper end is used to connect with the vehicle frame (7); The second shock absorber (52) is provided on the lower bracket (32) of the second airbag in the vertical direction and its upper end is used to connect with the vehicle frame (7); The rear ends of the first upper thrust rod (11) and the first lower thrust rod (61) are hinged to the first airbag lower bracket (31). The rear ends of the second upper thrust rod (12) and the second lower thrust rod (62) are hinged to the second airbag lower support (32).

8. The front suspension according to claim 7, characterized in that, The first upper thrust rod (11) and the first lower thrust rod (61) are spaced apart and arranged opposite each other in the vertical direction, and the second upper thrust rod (12) and the second lower thrust rod (62) are spaced apart and arranged opposite each other in the vertical direction.

9. A vehicle, characterized in that, The vehicle includes a guide arm bracket (2), a front axle (4), a frame (7), and a front suspension as described in any one of claims 1-8; The guide arm bracket (2) includes a first guide arm bracket (21) and a second guide arm bracket (22) spaced apart in the left and right directions. The front end of the first upper thrust rod (11) is hinged to the first guide arm bracket (21), and the front end of the second upper thrust rod (12) is hinged to the second guide arm bracket (22). Both the first guide arm bracket (21) and the second guide arm bracket (22) are connected to the vehicle frame (7).

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