Auxiliary spring support, plate spring assembly and vehicle

Abstract

The utility model discloses an auxiliary spring support, a plate spring assembly and a vehicle, and the auxiliary spring support comprises a base which is suitable for being connected with a frame of the vehicle; the first axial end of the pin shaft is connected with the base; a penetrating hole is formed in the lining, the pin shaft penetrates through the penetrating hole and is detachably connected and fixed with the lining, the center of the penetrating hole deviates from the center of the lining in the radial direction, and the lining is suitable for being selectively in contact with the auxiliary spring. Therefore, the central radial direction of the through hole is deviated from the center of the bushing, the bushing can be rotated and adjusted to change the distance between the auxiliary spring and the bushing and change the contact condition of the auxiliary spring and the auxiliary spring bracket, so that the auxiliary spring can provide different supporting forces, the flexibility of the auxiliary spring can be improved, and a vehicle can meet different loading requirements; and the use requirements of vehicle owners on specific carrying requirements, personal driving habits, driving requirements and the like can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is a kind of auxiliary spring support, leaf spring subassembly and vehicle. BACKGROUND

[0002] With the development of science and technology and the improvement of user living standard, vehicle becomes the indispensable traffic tool of people. Most heavy or truck vehicles are provided with main spring and auxiliary spring, and the main spring and auxiliary spring work cooperatively, which can prevent the problem of excessive deformation of main spring when the vehicle is heavily loaded, and can buffer the impact transmitted to the frame.

[0003] In the related art, since the vehicle kerb mass and the laden mass are greatly different, the rear axle load changes greatly under the conditions of empty load and full load, and in the design process of suspension, variable stiffness leaf spring is often selected to meet the suspension stiffness requirement under the conditions of empty load and full load, and in the design of commonly used variable stiffness steel plate spring, the action condition of auxiliary spring is generally fixed, so it is difficult to perfectly play the design advantage of variable stiffness leaf spring when facing different customers and different use scenarios. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in prior art. To this end, one purpose of the utility model is to provide an auxiliary spring support, which is more flexible and reliable in structure, and can change the action condition of auxiliary spring to meet different load requirements of vehicle.

[0005] The utility model further provides a leaf spring subassembly.

[0006] The utility model further provides a vehicle.

[0007] According to the auxiliary spring support of the utility model, the bottom base is suitable for being connected with the frame of vehicle, the first end of the shaft of pin is connected with the bottom base, the bushing is provided with a through hole, the pin is arranged in the through hole and detachably connected and fixed with the bushing, the center of the through hole is radially deviated from the center of the bushing, and the bushing is suitable for being selectively contacted with auxiliary spring.

[0008] Therefore, by deviating the center of the through hole from the center of the bushing in radial direction, the distance between auxiliary spring and bushing can be changed by rotating and adjusting the bushing, and the contact condition of auxiliary spring and auxiliary spring support is changed, so that auxiliary spring can provide different supporting force, thereby the flexibility of auxiliary spring can be improved, the vehicle can meet different load requirements, and the use requirements of vehicle owner for specific carrying requirements, personal driving habit, driving requirement and the like can be met.

[0009] In some examples of the utility model, the pin shaft is provided with a first limiting part, the through hole is provided with a second limiting part, the first limiting part and the second limiting part are circumferentially limited and matched.

[0010] In some examples of the utility model, the first limiting part is a first limiting spline, the second limiting part is a second limiting spline, the first limiting spline and the second limiting spline are circumferentially limited and matched.

[0011] In some examples of the utility model, the auxiliary spring support further comprises a locking piece, the axial second end of the pin shaft extends from the bushing, the bushing and the base abut each other, and the locking piece is detachably arranged on the axial second end of the pin shaft and selectively locks the bushing.

[0012] In some examples of the utility model, the bushing is provided with a third limiting part at one end axially towards the base, the base is provided with a fourth limiting part, and the third limiting part and the fourth limiting part are circumferentially limited and matched.

[0013] In some examples of the utility model, the third limiting part is a third limiting spline, the fourth limiting part is a fourth limiting spline, and the third limiting spline and the fourth limiting spline are circumferentially limited and matched.

[0014] In some examples of the utility model, the locking piece is a nut, the second end of the pin shaft is provided with a thread, and the nut is detachably threadedly connected with the thread.

[0015] In some examples of the utility model, the base is provided with a connecting part, the connecting part is suitable for being connected with the frame of the vehicle, the connecting part is three, the three connecting parts are arranged at intervals and jointly form a triangular shape.

[0016] The leaf spring assembly according to the utility model embodiment comprises the auxiliary spring support described above; a leaf spring piece, the leaf spring piece comprises a main spring and an auxiliary spring, the main spring is suitable for being connected with the frame of the vehicle, the auxiliary spring is connected with the main spring, and the auxiliary spring selectively contacts the auxiliary spring support.

[0017] The vehicle according to the utility model embodiment comprises the leaf spring assembly described above.

[0018] Additional aspects and advantages of the utility model will be in part apparent and in part pointed out hereinafter in the description. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings in which:

[0020] Figure 1 is a schematic view of a leaf spring assembly according to an embodiment of the present application;

[0021] Figure 2 is a schematic view of a secondary spring bracket according to an embodiment of the present application;

[0022] Figure 3 is an exploded view of a secondary spring bracket according to an embodiment of the present application;

[0023] Figure 4 is a partial schematic view of a bushing according to an embodiment of the present application.

[0024] Reference signs:

[0025] 1000, leaf spring assembly;

[0026] 100, secondary spring bracket; 200, leaf spring; 300, main spring; 400, secondary spring; 500, vehicle frame;

[0027] 10, base; 102, connecting portion;

[0028] 20, pin shaft; 201, first limiting portion; 202, first end; 203, second end;

[0029] 30, bushing; 301, through hole; 302, second limiting portion;

[0030] 40, locking member. DETAILED DESCRIPTION

[0031] Embodiments of the present application will be described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and embodiments of the present application will be described in detail below.

[0032] Reference will be made below Figures 1-4 to describe a secondary spring bracket 100 according to an embodiment of the present application, which can be applied to a leaf spring assembly 1000, which can be applied to a vehicle.

[0033] In combination Figures 1-4 with the drawings, the secondary spring bracket 100 according to the present application can mainly include a base 10, a pin shaft 20 and a bushing 30. Among them, the base 10 is adapted to be connected with the vehicle frame 500 of the vehicle, so that not only the secondary spring bracket 100 can be fixedly installed on the vehicle frame 500 of the vehicle, but also the possibility and reliability of interaction between the secondary spring 400 and the secondary spring bracket 100 can be ensured, so that the secondary spring 400 and the secondary spring bracket 100 can stably play a role.

[0034] Further, the axial first end 202 of the pin shaft 20 is connected with the base 10, so as to not only ensure the load bearing capacity of the pin shaft 20, but also ensure the structural integrity of the secondary spring support 100, and ensure the stability and reliability of the structure of the secondary spring support 100.

[0035] Further, the bushing 30 is provided with a through hole 301, the pin shaft 20 passes through the through hole 301 and is detachably connected and fixed with the bushing 30, so as to not only separate the pin shaft 20 and avoid the wear or friction caused by the contact between the pin shaft 20 and the surrounding components, but also absorb the energy of vibration and impact through the bushing 30, reduce the vibration and impact transmitted to the vehicle frame 500 by the secondary spring 400, improve the load bearing capacity of the vehicle structure, and in addition, the detachable connection and fixation of the pin shaft 20 and the bushing 30 can facilitate the replacement and maintenance of the bushing 30, and can facilitate the adjustment of the installation state of the bushing 30, and can improve the reliability of the structure of the secondary spring support 100.

[0036] Further, the center of the through hole 301 is radially offset from the center of the bushing 30, so that the distance between the secondary spring 400 and the bushing 30 can be changed by rotating the bushing 30, so as to change the load bearing capacity of the leaf spring assembly 1000, and the vehicle can meet different load requirements.

[0037] Further, the bushing 30 is adapted to selectively contact the secondary spring 400, and the bushing 30 is arranged above the secondary spring 400 together with the secondary spring support 100, when the vehicle is in an empty load or a small load, the secondary spring 400 and the primary spring 300 can meet the buffering effect of force through a small deformation amount, at this time, the secondary spring 400 is not in contact with the bushing 30; when the vehicle is in a large load or a full load, the secondary spring 400 and the primary spring 300 need to be deformed greatly to meet the buffering demand of force, and the large deformation of the secondary spring 400 causes the secondary spring 400 to be close to the secondary spring support 100, so that the secondary spring 400 is in contact with the bushing 30 of the secondary spring support 100, so as to improve the buffering effect of the leaf spring assembly 1000 on the vehicle.

[0038] Further, the center of the through hole 301 is radially offset from the center of the bushing 30, so that the position of the center of the through hole 301 relative to the center of the bushing 30 can be adjusted by rotation, for example, the center of the through hole 301 can be spaced on the side of the center of the bushing 30 radially toward the secondary spring 400, so that the distance between the bushing 30 and the secondary spring 400 is relatively large, and the secondary spring 400 needs to be subjected to a larger force and a larger deformation to realize the contact and abutment of the secondary spring 400 and the bushing 30; correspondingly, the center of the through hole 301 can be spaced on the side of the center of the bushing 30 radially away from the secondary spring 400, so that the distance between the bushing 30 and the secondary spring 400 is relatively small, and the secondary spring 400 needs to be subjected to a relatively small force and a relatively small deformation to realize the contact and abutment of the secondary spring 400 and the bushing 30, so that the flat spring assembly 1000 can automatically adjust its performance according to the load condition of the vehicle, and the vehicle can maintain good driving state under various road conditions.

[0039] Therefore, by offsetting the center of the through hole 301 radially from the center of the bushing 30, the distance between the secondary spring 400 and the bushing 30 can be changed by rotating the bushing 30, and the contact condition of the secondary spring 400 and the secondary spring support 100 can be changed, so that the secondary spring 400 can provide different support forces, thereby improving the flexibility of the secondary spring 400, and the vehicle can meet different load requirements and meet the use requirements of the vehicle owner for specific carrying requirements, personal driving habits, driving requirements, etc.

[0040] As shown in Figure 2 , Figure 3 and Figure 4 , the pin shaft 20 is provided with a first limiting portion 201, and the through hole 301 is provided with a second limiting portion 302, and the first limiting portion 201 and the second limiting portion 302 are circumferentially limited and matched. Specifically, by providing the first limiting portion 201 on the pin shaft 20, providing the second limiting portion 302 in the through hole 301 of the bushing 30, and making the first limiting portion 201 and the second limiting portion 302 circumferentially limited and matched, the pin shaft 20 and the bushing 30 can be fixed, and the pin shaft 20 can be prevented from producing out-of-range deviation or rotation in the through hole 301 of the bushing 30, and the precision and reliability of the structure of the secondary spring support 100 can be improved. In addition, through the first limiting portion 201 and the second limiting portion 302, the installation of the pin shaft 20 and the bushing 30 can be facilitated, and the accuracy of the installation of the pin shaft 20 and the bushing 30 can be ensured.

[0041] As shown in Figure 2 , Figure 3 and Figure 4As shown, the first limiting part 201 is a first limiting spline, the second limiting part 302 is a second limiting spline, and the first limiting spline and the second limiting spline are circumferentially limited to cooperate. Specifically, the spline structure is composed of a plurality of key teeth and key grooves, by making the first limiting part 201 a first limiting spline, the second limiting part 302 a second limiting spline, and the first limiting spline and the second limiting spline circumferentially limited to cooperate, wherein the first limiting spline and the second limiting spline both adopt the spline structure through the cooperation of the key teeth and the key grooves, so that the positioning and assembly of the pin shaft 20 and the bushing 30 are more convenient and fast, and the installation between the pin shaft 20 and the bushing 30 is more accurate and stable, in addition, the pin shaft 20 and the bushing 30 can be tightly matched to better transmit the force between the secondary spring 400 and the secondary spring support 100, the force on the secondary spring support 100 can be more uniform, and the stability and reliability of the leaf spring assembly 1000 can be improved.

[0042] In this way, by circumferentially limiting the cooperation of the first limiting spline of the pin shaft 20 and the second limiting spline of the bushing 30, the installation state between the bushing 30 and the pin shaft 20 can be changed by rotating the bushing 30, so that the distance between the secondary spring 400 and the bushing 30 can be changed, and the contact condition of the secondary spring 400 and the secondary spring support 100 can be changed, so that the vehicle can meet different load requirements. It should be noted that when the installation state of the bushing 30 is adjusted by rotating, the bushing 30 can be removed, so that the first limiting spline and the second limiting spline are separated from the limiting, and then the bushing 30 is adjusted by rotating.

[0043] In some embodiments of the utility model, the center of the perforation 301 deviates from the center of the bushing 30 in the radial direction, wherein the minimum radius of the bushing 30 is R1, and the maximum radius is R2. The keying angle of the bushing 30 and the pin shaft 20 can be reselected by rotating the bushing 30, so that the distance between the secondary spring 400 and the secondary spring support 100 can be freely switched within a certain range.

[0044] In some embodiments of the utility model, the first end 202 of the pin shaft 20 can be inserted into the base 10, and the connection between the first end 202 of the pin shaft 20 and the base 10 can be fixed by welding.

[0045] In combination with Figure 2 , Figure 3 and Figure 4As shown, the secondary spring support 100 further comprises a locking member 40, the axial second end 203 of the pin shaft 20 extends out of the bushing 30, the bushing 30 is in abutment with the base 10, and the locking member 40 is detachably arranged on the axial second end 203 of the pin shaft 20 and selectively locks the bushing 30. Specifically, the axial second end 203 of the pin shaft 20 extends out of the bushing 30, and the bushing 30 is in abutment with the base 10, and then the locking member 40 is detachably arranged on the axial second end 203 of the pin shaft 20 and selectively locks the bushing 30. In this way, the bushing 30 can be reliably fixed on the pin shaft 20 through the locking member 40, further, the bushing 30 can be prevented from loosening or falling off during vehicle running, the normal function of the bushing 30 can be ensured, the stability and reliability of the structure of the secondary spring support 100 can be ensured, and the safety and stability of the vehicle can be improved.

[0046] Further, the detachable arrangement and selective locking function of the locking member 40 can facilitate the disassembly or loosening operation of the bushing 30, facilitate the adjustment of the installation state of the bushing 30, and facilitate the flexibility of the secondary spring support 100, adjust the interaction between the secondary spring 400 and the secondary spring support 100, so that the vehicle can meet different load requirements.

[0047] As shown in Figure 2 , Figure 3 and Figure 4 , one end of the bushing 30 axially towards the base 10 is provided with a third limiting portion, the base 10 is provided with a fourth limiting portion, and the third limiting portion and the fourth limiting portion are circumferentially limited and matched. Specifically, the third limiting portion is arranged at one end of the bushing 30 axially towards the base 10, the fourth limiting portion is arranged on the base 10, and the third limiting portion and the fourth limiting portion are circumferentially limited and matched. In this way, the bushing 30 can be connected and fixed with the base 10, the offset or misalignment between the bushing 30 and the base 10 can be prevented, the precision and reliability of the structure of the secondary spring support 100 can be improved, and in addition, the installation of the bushing 30 and the base 10 can be facilitated, and the accuracy of the installation of the bushing 30 and the base 10 can be ensured.

[0048] As shown in Figure 2 , Figure 3 and Figure 4 , the third limiting portion is a third limiting spline, the fourth limiting portion is a fourth limiting spline, and the third limiting spline and the fourth limiting spline are circumferentially limited and matched.

[0049] Specifically, the spline structure is composed of a plurality of key teeth and key grooves, the third limiting part is a third limiting spline, the fourth limiting part is a fourth limiting spline, and the third limiting spline and the fourth limiting spline are circumferentially limited and matched, wherein the third limiting spline and the fourth limiting spline both adopt a spline structure through the cooperation of key teeth and key grooves, which not only makes the positioning and assembly of the bushing 30 and the base 10 more convenient and fast, but also makes the bushing 30 and the base 10 tightly matched, so that the connection between the bushing 30 and the base 10 is more accurate and stable, preventing the bushing 30 and the base 10 from being offset or misaligned, and further improving the stability and reliability of the structure of the secondary spring support 100.

[0050] In this way, by circumferentially limiting and matching the third limiting spline of the bushing 30 with the fourth limiting spline of the base 10, the installation state between the bushing 30 and the base 10 can be changed by rotating the bushing 30, so that the distance between the secondary spring 400 and the bushing 30 can be changed, and the contact condition between the secondary spring 400 and the secondary spring support 100 can be changed, so that the vehicle can meet different load requirements.

[0051] Further, the third limiting spline is arranged at one end of the bushing 30 axially towards the base 10, and the fourth limiting spline is arranged on the base 10, so that when rotating to adjust the installation state of the bushing 30, only the distance between the bushing 30 and the base 10 needs to be adjusted in the axial direction, so that the bushing 30 and the base 10 are arranged at intervals, and the third limiting spline can be separated from the limiting of the fourth limiting spline, so that the rotation of the bushing 30 relative to the pin shaft 20 can be realized. In this way, without completely removing the bushing 30 from the pin shaft 20, the rotation of the bushing 30 can be adjusted to change the installation state, which can facilitate operation and improve the efficiency of adjustment.

[0052] In combination with Figure 2 , Figure 3 and Figure 4 , the locking member 40 is a nut, the second end 203 of the pin shaft 20 is provided with a thread, and the nut is detachably threadedly connected with the thread. Specifically, by providing a thread on the second end 203 of the pin shaft 20 and using the nut as the locking member 40, the nut is detachably threadedly connected with the thread, so that the bushing 30 can be reliably fixed and installed on the outer periphery of the pin shaft 20 through the cooperation of the nut and the thread, thereby not only preventing the bushing 30 from being deflected or falling off and improving the stability and reliability of the structure of the secondary spring support 100, but also simplifying the structure of the secondary spring support 100 and simplifying the machining process and the installation process of the secondary spring support 100.

[0053] In some embodiments of the utility model, the rotation mode of bushing 30 can be: first unscrew the nut that locks the second end 203 of pin shaft, secondly take down the whole bushing 30 structure, then rotate and adjust bushing 30 according to the required distance between bushing 30 and auxiliary spring 400, finally reinstall bushing 30 and lock the nut to constitute complete auxiliary spring support 100. It needs to be explained that the rotation mode can be manual rotation or remote control motor rotation.

[0054] Combining Figure 2 、 Figure 3 And Figure 4 As shown in the drawings, the base 10 is provided with a connecting part 102, the connecting part 102 is suitable for being connected with the frame 500 of the vehicle, the connecting part 102 is three, the three connecting parts 102 are arranged at intervals and jointly constitute a triangular shape.

[0055] Specifically, by arranging the connecting part 102 on the base 10 and making the connecting part 102 suitable for being connected with the frame 500 of the vehicle, the auxiliary spring support 100 can be fixedly installed on the frame 500 of the vehicle through the base 10, the auxiliary spring support 100 can be kept stable during the driving of the vehicle, and the auxiliary spring support 100 can normally play a role.

[0056] Further, the three connecting parts 102 of the base 10 are arranged at intervals and jointly constitute a triangular shape, so that not only can the shaking or tilting of the base 10 be avoided, but also the deformation or distortion of the base 10 can be prevented, the stability of the structure and shape of the base 10 is ensured, and the triangular structure can make the stress of the base 10 more uniform, the problem of stress concentration of the base 10 can be avoided, the connection between the base 10 and the frame 500 is not easy to deform when subjected to external force, and the stability and reliability of the base 10 can be improved.

[0057] In some embodiments of the utility model, the three connecting parts 102 of the base 10 and the frame 500 can be connected through bolts, so that not only can the loosening or separation of the base 10 from the frame 500 be effectively avoided, but also the installation and disassembly of the base 10 can be facilitated.

[0058] Combining Figure 1 Figure 2 Figure 3 Figure 1 As shown in the drawings, the leaf spring assembly 1000 according to the utility model can mainly include the auxiliary spring support 100 and the leaf spring piece 200.

[0059] Specifically, since the structure of the auxiliary spring support 100 is more flexible and reliable and has good working performance, the auxiliary spring support 100 is applied to the leaf spring assembly 1000, so that the action condition of the auxiliary spring 400 can be changed by rotating and adjusting the bushing 30 of the auxiliary spring support 100, so that the vehicle can meet different load requirements, and the comfort and applicability of the vehicle can be improved.

[0060] Further, the leaf spring assembly 1000 comprises a main spring 300 and a sub-spring 400, the main spring 300 is adapted to be connected with the vehicle frame 500, the sub-spring 400 is connected with the main spring 300, and the sub-spring 400 is selectively in contact with the sub-spring bracket 100. Specifically, the main spring 300 is connected with the vehicle frame 500, and the sub-spring 400 is connected with the main spring 300, so that the main spring 300 can serve as the main load-bearing structure, and the sub-spring 400 can serve as the auxiliary structure. In the leaf spring assembly 1000, the main spring 300, the sub-spring 400 and the sub-spring bracket 100 work together to support the vehicle body and buffer the impact of the road. Further, when the vehicle is in an empty state or has a small load, the sub-spring 400 and the main spring 300 can meet the buffering effect of force through a small deformation amount, and at this time, the sub-spring 400 is not in contact with the sub-spring bracket 100; when the vehicle has a large load or is fully loaded, the sub-spring 400 and the main spring 300 need to be deformed greatly to meet the buffering demand of force, and the sub-spring 400 deforms greatly to make the sub-spring 400 close to the sub-spring bracket 100, so that the sub-spring 400 is in contact with the sub-spring bracket 100, thereby improving the supporting and buffering effect of the leaf spring assembly 1000 on the vehicle. In this way, the performance of the leaf spring assembly 1000 can be automatically adjusted according to the load of the vehicle, and the vehicle can maintain a good driving state under various road conditions.

[0061] In some embodiments of the present application, the connection between the main spring 300 and the vehicle frame 500 can be achieved through a rolled ear structure, so that the connection between the main spring 300 and the vehicle frame 500 is more stable and reliable, and the rolled ear structure can better adapt to the deformation of the leaf spring assembly 1000.

[0062] In some embodiments of the present application, perforations can be provided on the main spring 300 and the sub-spring 400, and then the main spring 300 and the sub-spring 400 are connected and fixed by bolts, so that the connection between the main spring 300 and the sub-spring 400 is simple, direct, stable and reliable, and the installation and disassembly of the main spring 300 and the sub-spring 400 are facilitated. Further, a gasket can be provided between the main spring 300 and the sub-spring 400 to reduce the wear between the main spring 300 and the sub-spring 400, so that the transmission of force between the main spring 300 and the sub-spring 400 is more uniform and smooth.

[0063] The vehicle according to the utility model can mainly comprise the plate spring assembly 1000. Specifically, the plate spring assembly 1000 is more flexible in structure, has good working performance and applicability, and is applied to the vehicle, so that the vehicle can meet different load requirements, the action condition of the auxiliary spring 400 can be set by each vehicle owner according to the use scene, use mode, driving habit and other personal characteristics, and further, the comfort and safety of the vehicle can be improved, and the stability and reliability of the vehicle can be improved.

[0064] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0065] In the description of the utility model, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0066] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A secondary spring bracket, characterized in that: include: A base (10), the base (10) being adapted to be connected to a vehicle frame (500); A pin shaft (20), wherein an axial first end (202) of the pin shaft (20) is connected to the base (10); A bushing (30) is provided with a through hole (301) in the bushing (30), the pin (20) passes through the through hole (301) and is detachably connected and fixed to the bushing (30), the center of the through hole (301) radially deviates from the center of the bushing (30), and the bushing (30) is suitable for selectively contacting the auxiliary spring (400).

2. The auxiliary spring bracket according to claim 1, characterized in that: A first limiting portion (201) is provided on the pin shaft (20), and a second limiting portion (302) is provided in the through hole (301), wherein the first limiting portion (201) and the second limiting portion (302) cooperate in circumferential limiting manner.

3. The auxiliary spring bracket according to claim 2, characterized in that: The first limiting portion (201) is a first limiting spline, the second limiting portion (302) is a second limiting spline, and the first limiting spline and the second limiting spline are circumferentially limited.

4. The auxiliary spring bracket according to claim 1, characterized in that: The invention also includes a locking member (40), wherein the axial second end (203) of the pin shaft (20) extends from the bushing (30), the bushing (30) and the base (10) abut against each other, and the locking member (40) is detachably arranged on the axial second end (203) of the pin shaft (20) and selectively locks the bushing (30).

5. The auxiliary spring bracket according to claim 1, characterized in that: A third limiting portion is provided at one end of the bushing (30) axially facing the base (10), a fourth limiting portion is provided on the base (10), and the third limiting portion and the fourth limiting portion are circumferentially limited and matched.

6. The auxiliary spring bracket according to claim 5, characterized in that: The third limiting portion is a third limiting spline, the fourth limiting portion is a fourth limiting spline, and the third limiting spline and the fourth limiting spline are circumferentially limited.

7. The auxiliary spring bracket according to claim 1, characterized in that: The locking member (40) is a nut, the second end (203) of the pin shaft (20) is provided with a thread, and the nut is detachably threadedly connected to the thread.

8. The auxiliary spring bracket according to claim 1, characterized in that: The base (10) is provided with a connecting portion (102), and the connecting portion (102) is suitable for connecting to a vehicle frame (500). There are three connecting portions (102), and the three connecting portions (102) are arranged at intervals and together form a triangular shape.

9. A leaf spring assembly, characterized in that: include: The auxiliary spring bracket (100) according to any one of claims 1 to 8; A leaf spring component (200) includes a main spring (300) and a secondary spring (400), wherein the main spring (300) is adapted to be connected to a vehicle frame (500), the secondary spring (400) is connected to the main spring (300), and the secondary spring (400) selectively contacts the secondary spring bracket (100).

10. A vehicle, characterized in that: Comprising the leaf spring assembly (1000) described in claim 9.

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