Wheel jump limiting structure and vehicle

Abstract

The utility model provides a wheel jump limiting structure and a vehicle. The wheel jump limiting structure comprises an elastic buffering mechanism arranged between a vehicle frame and a control arm connected with an axle. The elastic buffering mechanism comprises a first buffering assembly located on the frame or a second buffering assembly located on the control arm. Under wheel jump excitation, the control arm can abut against the frame through the first buffering assembly or the second buffering assembly. According to the wheel jump limiting structure, the elastic buffering mechanism is arranged between the frame and the control arm, and the elastic buffering mechanism and the buffering limiting structure between the frame and the axle can form a double-limiting structure together, so that when the wheel jump is large, the effective buffering and limiting effects can be achieved, the over-travel interference of the wheel jump can be avoided, and the service life of the wheel jump is prolonged. And the driving comfort of the vehicle can be improved.

Description

Technical Field

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

[0002] Suspension is an important component of the vehicle's driving system, which directly affects the stability, operability and comfort of the vehicle. The suspension system mainly includes independent suspension, non-independent suspension and semi-independent suspension.

[0003] The structural feature of the non-independent suspension system is that the wheels on both sides are connected by an integral frame, and the wheels together with the axle are suspended under the frame or body through an elastic suspension system. The non-independent suspension system has the advantages of simple structure, low cost, high strength, easy maintenance, and small changes in the front wheel alignment during driving.

[0004] However, in the prior art, a buffer block is provided on the frame behind the wheel to abut against the axle for buffering, so as to limit the wheel jump. However, when the wheel jump is large, the buffering effect of the buffer block behind the wheel is limited, and there is a risk of wheel jump overtravel interference. Utility Model Content

[0005] In view of this, the utility model aims to propose a wheel jump limiting structure to solve the interference problem caused by wheel jump overtravel.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A wheel jump limiting structure comprises an elastic buffer mechanism arranged between a vehicle frame and a control arm connected to a vehicle axle; the elastic buffer mechanism comprises a first buffer component located on the vehicle frame, and the first buffer component is arranged corresponding to the end of the control arm connected to the vehicle axle, or the elastic buffer mechanism comprises a second buffer component located on the control arm, and the second buffer component is located at the end of the control arm connected to the vehicle axle; under wheel jump excitation, the control arm can abut against the vehicle frame through the first buffer component or the second buffer component.

[0008] Furthermore, the first buffer assembly includes a mounting base plate connected to the frame, and a first elastic buffer block arranged on the mounting base plate.

[0009] Furthermore, the cross-section of the first elastic buffer block is gradually reduced along the direction pointing to the control arm; and / or, a groove is provided at one end of the first elastic buffer block close to the control arm, and the groove matches the shape of the end of the control arm.

[0010] Furthermore, the second buffer assembly includes a mounting base connected to the end of the control arm, and a second elastic buffer block arranged on the mounting base.

[0011] Furthermore, the mounting base is fixed to the control arm via a screw connection structure.

[0012] Furthermore, a limiting structure is provided between the mounting base and the control arm, and the limiting structure is used to limit the mounting base when the mounting base is connected to the control arm, and the limiting structure includes a first limiting structure and a second limiting structure provided between the mounting base and the control arm; the limiting directions of the first limiting structure and the second limiting structure are different.

[0013] Furthermore, the first limiting structure and the second limiting structure both include a limiting surface provided on the control arm, and a limiting flange provided on the mounting base; each limiting flange abuts against the corresponding limiting surface, and the limiting surface in the first limiting structure is located on one side of the control arm, and the limiting surface in the second limiting structure is located at an end of the control arm.

[0014] Furthermore, the screw connection structure includes a threaded connection hole provided on each of the limiting surfaces, a connection through hole adapted to the threaded connection hole, a connection through hole provided on the corresponding limiting flange, and a bolt screwed into the threaded connection hole through the connection through hole.

[0015] Furthermore, a boss is formed on the control arm, and the mounting base is fixed on the boss; and / or, in the thickness direction of the second elastic buffer block, the cross-section of the second elastic buffer block is gradually reduced in the direction away from the mounting base.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The wheel jump limiting structure described in the utility model can form a double limiting structure together with the buffer limiting structure between the frame and the axle by arranging an elastic buffer mechanism between the frame and the control arm. It can thus play an effective buffer limiting role when the wheel jump is large, avoid wheel jump over-travel interference, and help to improve the driving comfort of the vehicle.

[0018] In addition, the first buffer assembly is composed of a mounting base plate and a first elastic buffer block, which has a simple structure, is easy to design and prepare, and is also convenient to install on the vehicle frame. The cross-section of the first elastic buffer block is gradually reduced, so that when it abuts against the control arm, the impact force on the lower part with a smaller cross-section is decomposed by the upper part with a larger cross-section. At the same time, the upper part with a larger cross-section can also increase the connection area between the elastic buffer block and the mounting base plate, which is beneficial to improving the buffering stability and the stability of the overall structure of the elastic buffer mechanism; a groove matching the shape of the end of the control arm is provided at the end of the first elastic buffer block, which can avoid the first elastic buffer block from being deflected when abutting against the control arm, which helps to ensure the buffering limit effect.

[0019] In addition, the second buffer assembly is composed of a mounting base and a second elastic buffer block, which also has the advantages of simple structure and easy design and preparation. The mounting base is fixed by a screw structure, which can realize the detachable setting of the elastic buffer mechanism, and can facilitate the later maintenance and replacement of the elastic buffer mechanism, which is beneficial to improving the maintenance economy of the vehicle. By setting a limiting structure, the fixing operation of the mounting base on the control arm can be facilitated, and the limiting structure includes two limiting directions with different limiting effects, which can achieve a better limiting effect, help to better improve the convenience of the fixing operation of the mounting base, and can improve the reliability of the fixing of the mounting base. The limiting structure is composed of an adaptive limiting surface and a limiting flange, which has a simple structure, is conducive to design, and helps to reduce the design and manufacturing costs of the control arm.

[0020] Furthermore, the screw connection structure is integrated at the limiting structure, which is convenient for setting the screw connection structure and can also make use of the difference in limiting directions between the two limiting structures to better ensure the stability of the screw connection structure. The screw connection structure is integrated at the limiting structure, which is convenient for setting the screw connection structure and can also make use of the difference in limiting directions between the two limiting structures to better ensure the stability of the screw connection structure; the cross section of the second elastic buffer block is gradually reduced, so that when it abuts against the frame, the impact force on the upper part with a smaller cross section can be decomposed by the lower part with a larger cross section. At the same time, the lower part with a larger cross section can also increase the connection area between the elastic buffer block and the mounting base, which is beneficial to improving the buffering stability and the stability of the overall structure of the elastic buffer mechanism.

[0021] In addition, another object of the present invention is to provide a vehicle, in which the wheel jump limiting structure as described above is provided.

[0022] The vehicle described in the utility model is beneficial to improving the driving comfort of the vehicle by providing the wheel jump limiting structure as mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic structural diagram of the wheel cover limiting structure, the vehicle frame and the vehicle axle in the assembled state according to the first embodiment of the present utility model;

[0025] Figure 2 This is a structural schematic diagram of the buffer limit structure and the elastic buffer mechanism according to the first embodiment of the utility model;

[0026] Figure 3 This is a schematic structural diagram of the elastic buffer mechanism described in Embodiment 1 of the present utility model;

[0027] Figure 4 It is a structural schematic diagram of the control arm and the elastic buffer mechanism according to the first embodiment of the utility model at one viewing angle;

[0028] Figure 5 It is a structural schematic diagram of the control arm and the elastic buffer mechanism according to the first embodiment of the utility model from another perspective;

[0029] Figure 6 This is a schematic structural diagram of the control arm according to the first embodiment of the utility model at one viewing angle;

[0030] Figure 7 It is a structural schematic diagram of the control arm described in the first embodiment of the utility model from another viewing angle;

[0031] Figure 8 It is a structural schematic diagram of the elastic buffer mechanism described in the first embodiment of the utility model at one viewing angle;

[0032] Fig. 9 It is a structural schematic diagram of the elastic buffer mechanism described in the first embodiment of the utility model from another viewing angle;

[0033] Fig.10 It is a structural schematic diagram of the control arm and the elastic buffer mechanism described in the second embodiment of the utility model from one viewing angle;

[0034] Fig.11 It is a structural schematic diagram of the control arm and the elastic buffer mechanism described in the second embodiment of the utility model from another perspective;

[0035] Fig.12 This is a schematic structural diagram of the control arm described in Embodiment 2 of the present utility model;

[0036] Fig.13This is a schematic structural diagram of the elastic buffer mechanism described in Embodiment 2 of the present utility model at a first viewing angle;

[0037] Fig.14 This is a schematic structural diagram of the elastic buffer mechanism according to the second embodiment of the present utility model at a second viewing angle;

[0038] Fig.15 This is a schematic structural diagram of the elastic buffer mechanism described in the second embodiment of the utility model at a third viewing angle;

[0039] Fig.16 for Fig.15 AA direction section view in.

[0040] Description of reference numerals:

[0041] 1. Frame longitudinal beam; 2. Control arm; 3. Second buffer assembly; 4. Axle; 5. Wheel hub; 6. Buffer limit structure; 7. Half shaft; 9. Rear shock absorber;

[0042] 101, connecting beam; 102, protruding portion; 103, mounting plate; 104, mounting bottom plate; 1041, connecting hole; 105, first elastic buffer block; 1051, first groove; 106, fixing plate;

[0043] 200, rod body; 201, connecting ring; 202, sleeve; 203, boss; 2031, inner part; 2032, outer part; 204, threaded connection hole; 205, first limiting surface; 2051, convex block; 206, second limiting surface; 207, weight reduction groove; 208, mounting hole;

[0044] 301, mounting base; 3011, first limiting flange; 3012, second limiting flange; 3013, connecting through hole; 302, second elastic buffer block; 303, notch; 304, bolt;

[0045] 3014, connecting stud; 3015, flanging; 3021, second groove; 3022, flange;

[0046] 401, first connecting arm;

[0047] 601, mounting seat; 602, third elastic buffer block; 6021, through hole; 603, third groove. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0049] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0051] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0052] Embodiment 1

[0053] The present embodiment relates to a wheel jump limiting structure, which can play an effective buffering and limiting role when the wheel jump is large, thereby avoiding the problem of wheel jump over-travel interference.

[0054] In terms of overall structure, the wheel jump limiting structure includes an elastic buffer mechanism provided between the vehicle frame and the control arm 2 connected to the axle 4. The elastic buffer mechanism may include, for example, a first buffer component located on the vehicle frame, and the first buffer component is provided corresponding to the end of the control arm 2 connected to the axle 4, or the elastic buffer mechanism may include a second buffer component located on the control arm 2, and the second buffer component is located at the end of the control arm 2 connected to the axle 4. Under wheel jump excitation, the end of the control arm 2 connected to the axle 4 can abut against the vehicle frame through the first buffer component or the second buffer component.

[0055] The wheel jump limiting structure of the present embodiment, by providing an elastic buffer mechanism between the frame and the control arm 2, can form a double limit structure together with the buffer limit structure 6 between the frame and the axle 4, thereby being able to play an effective buffer limit role when the wheel jump is large, thereby avoiding wheel jump over-travel interference and helping to improve the driving comfort of the vehicle.

[0056] Based on the overall introduction above, the axle 4 of this embodiment can be, for example, a rear axle, and further, the axle 4 is preferably an integral bridge, which has substantially the same structure as a traditional rear axle, and the suspension system on the axle 4 is specifically a non-independent suspension system.

[0057] like Figure 1 As shown in the figure, the vehicle frame includes a frame longitudinal beam 1 which is arranged on both sides and extends along the front-rear direction of the vehicle. The axle 4 is arranged to extend along the left-right direction of the vehicle and is located below the rear part of the frame longitudinal beam 1. The wheel hub 5 is connected to the steering knuckle at the end of the half shaft 7 and the end of the axle 4. The end of the axle 4 is provided with a first connecting arm 401 and a second connecting arm which are bent forward, and the free end of the first connecting arm 401 is located above the free end of the second connecting arm. A rear shock absorber 9 is also connected between the wheel hub 5 and the frame longitudinal beam 1.

[0058] A protruding portion 102 extending downward is provided at the bottom of the front end of the frame longitudinal beam 1, and a mounting plate 103 is provided on the outer side of the protruding portion 102, and an installation space is formed between the mounting plate 103 and the protruding portion 102. A control arm 2 is connected between the top of the installation space and the free end of the first connecting arm 401, and between the top of the installation space and the free end of the second connecting arm, wherein the control arm 2 arranged on the upper side is the upper control arm, and the control arm arranged on the lower side is the lower control arm. The control arm 2 in this embodiment is generally an upper control arm.

[0059] The buffering and limiting structure 6 disposed between the vehicle frame and the vehicle axle 4 will be described below. Figure 1 and Figure 2 As shown in , the buffering and limiting structure 6 is arranged on the frame longitudinal beam 1 and is located above the axle 4. Preferably, the buffering and limiting structure 6 includes a mounting seat 601 detachably mounted on the frame longitudinal beam 1, and a third elastic buffer block 602 arranged at the bottom of the mounting seat 601. Here, the mounting seat 601 and the frame longitudinal beam 1 are detachably connected, which can facilitate the maintenance and replacement of the buffering and limiting structure 6.

[0060] In order to facilitate the arrangement of the buffering and limiting structure 6, a connecting beam 101 extending downward is provided at the bottom of the frame longitudinal beam 1, a fixing plate 106 is provided at the bottom of the connecting beam 101, and a mounting seat 601 is installed on the frame longitudinal beam 1 by means of a plurality of bolts 304 and nuts passing through the mounting seat 601 and the fixing plate 106. Here, the buffering and limiting structure 6 is made of the mounting seat 601 and the third elastic buffer block 602, and has the advantages of simple structure, convenient arrangement and implementation, and good buffering and limiting effect on the abutment of the axle 4.

[0061] Further, such as Figure 2As shown in , the bottom surface of the third elastic buffer block 602 is provided with a third groove 603, which is conducive to improving the limiting buffering effect between the axle 4, and the third groove 603 is easy to be processed and formed on the third elastic buffer block 602. Preferably, a through hole 6021 is also provided at the bottom of the third elastic buffer block 602, and the through hole 6021 is arranged close to the bottom surface. When the third elastic buffer block 602 abuts against the axle 4, due to the arrangement of the through hole 6021, the elastic deformation of the third elastic buffer block 602 is large, so that it can better abut against the axle 4, thereby playing a better buffering and limiting role.

[0062] In addition, the cross section of the third elastic buffer block 602 is gradually reduced in the direction pointing to the axle 4. Such a configuration can make the impact force of the lower part with a smaller cross section be decomposed by the upper part with a larger cross section when it contacts the axle 4, and the upper part with a larger cross section can also increase the connection area between the third elastic buffer block 602 and the mounting seat 601, which is beneficial to improve the buffer stability and the stability of the buffer limit structure 6.

[0063] It should be noted that the buffering and limiting structure 6 in this embodiment can be set on the axle 4 in addition to being set on the frame longitudinal beam 1. In this case, the buffering and limiting structure 6 is connected to the axle 4 through the mounting seat 601. Accordingly, a connecting beam 101 corresponding to the buffering and limiting structure 6 can still be set on the frame longitudinal beam 1, and the buffering and limiting effect can be achieved through the abutment between the connecting beam 101 and the buffering and limiting structure 6.

[0064] As a preferred embodiment, Figure 1 and Figure 2 As shown in the figure, the first buffer assembly in this embodiment includes a mounting base plate 104 connected to the vehicle frame, and a first elastic buffer block 105 arranged on the mounting base plate 104. The first buffer assembly is arranged on the vehicle frame and is composed of the mounting base plate 104 and the first elastic buffer block 105, so that the structure of the first buffer assembly is simple, easy to design and prepare, and also convenient to be arranged on the vehicle frame.

[0065] Continue to combine Figures 1 to 3 As shown in , the cross section of the first elastic buffer block 105 is gradually reduced in the direction pointing to the control arm 2. Such a setting can make the impact force of the lower part with a smaller cross section be decomposed by the upper part with a larger cross section when it contacts the control arm 2. At the same time, the upper part with a larger cross section can also increase the connection area between the first elastic buffer block 105 and the mounting base plate 104, which is beneficial to improve the buffering stability and the stability of the overall structure of the first buffer assembly.

[0066] To further improve the use effect of the first elastic buffer block 105, Figure 3As shown in FIG, a groove is provided at one end of the first elastic buffer block 105 close to the control arm 2, and the groove matches the shape of the end of the control arm 2. To facilitate the distinction from other grooves, the groove provided on the first elastic buffer block 105 is referred to as the first groove 1051. The first groove 1051 matching the shape of the end of the control arm 2 is provided at the end of the first elastic buffer block 105, so as to avoid the first elastic buffer block 105 from being deflected when abutting against the control arm 2, and to help ensure the buffering and limiting effect.

[0067] like Figure 2 and Figure 3 As shown in , the mounting base plate 104 can be detachably mounted on the frame longitudinal beam 1. Such a configuration can facilitate the later maintenance and replacement of the first buffer assembly, which is beneficial to improving the maintenance economy of the vehicle. Specifically, connection holes 1041 are respectively provided at both ends of the mounting base plate 104. The mounting base plate 104 is mounted on the frame longitudinal beam 1 by the cooperation of the bolts 304 and nuts passing through the connection holes 1041 and the frame longitudinal beam 1. The mounting method of the mounting base plate 104 here is simple and easy to operate.

[0068] The first elastic buffer block 105 in this embodiment can be connected to the mounting base plate 104 by vulcanization or bonding, and the first elastic buffer block 105 can be made of a rubber material with suitable elasticity and good weather resistance and durability.

[0069] like Figures 4 to 7 As shown in the figure, the control arm 2 in this embodiment includes a rod body 200 and sleeves 202 provided at both ends of the rod body 200. Here, the control arm 2 is composed of the rod body 200 and the sleeves 202, which has a simple structure, is easy to design and manufacture, and is also convenient for the arrangement of the second buffer assembly 3 and reliable contact with the frame.

[0070] Specifically, a connecting ring 201 is provided at each end of the rod body 200, and a mounting hole 208 for mounting the shaft sleeve 202 is provided in each connecting ring 201, and the axis of the mounting hole 208 is perpendicular to the length direction of the rod body 200. The rod body 200 in this embodiment is preferably forged to have a higher structural strength and to improve assembly efficiency.

[0071] In addition, a weight-reducing structure may be provided on the rod body 200 to facilitate the lightweighting of the control arm 2. Figure 6 and Figure 7 As shown in , the weight-reducing structure includes weight-reducing grooves 207 provided on both sides of the rod body 200 and extending along the length direction of the rod body 200. The weight-reducing grooves 207 have a simple structure, which is conducive to weight reduction while ensuring the structural strength of the rod body 200. Of course, in specific implementation, the position and shape of the weight-reducing structure can be adjusted according to the use requirements.

[0072] It is understandable that, in addition to the rod body 200, the control arm 2 in this embodiment can also refer to the control arm structure in the existing suspension system. The main structure of the control arm 2 can also be block-shaped, plate-shaped or other structural forms, as long as it meets the usage requirements.

[0073] In some preferred embodiments, Figure 4 and Figure 6 As shown in the figure, the second buffer assembly 3 includes a mounting base 301 connected to the end of the control arm 2, and a second elastic buffer block 302 arranged on the mounting base 301. The second buffer assembly 3 is located on the control arm 2, and is composed of the mounting base 301 and the second elastic buffer block 302, and also has the advantages of simple structure and easy design and preparation.

[0074] In order to facilitate the installation of the mounting base 301, a boss 203 is formed on the control arm 2, and the mounting base 301 is fixed on the boss 203. Figure 4 and Figure 5 As shown in , the boss 203 is provided at one end of the rod body 200 having the second buffer assembly 3, and the mounting base 301 is fixed on the boss 203. By forming the boss 203 on the rod body 200, the mounting base 301 is fixed on the boss 203, which helps to improve the reliability of the second buffer assembly 3.

[0075] Specifically, the boss 203 has an inner portion 2031 located on the side of the same-end connecting ring 201 facing the rod body 200, and an outer portion 2032 located outside the same-end connecting ring 201. The top of the boss 203 is a plane, and the main body of the mounting base 301 is a flat plate abutting against the top plane of the boss 203, which facilitates the installation of the mounting base 301 and even the second buffer assembly 3 on the rod body 200.

[0076] As a preferred embodiment, the mounting base 301 is fixed to the control arm 2 by a screw connection structure. The mounting base 301 is fixed by a screw connection structure, which can realize the detachable setting of the second buffer assembly 3, facilitate the later maintenance and replacement of the second buffer assembly 3, and help improve the maintenance economy of the vehicle.

[0077] As a preferred exemplary structure of the second buffer component 3, Figure 4 and Figure 5 As shown in the figure, a limiting structure is provided between the mounting base 301 and the control arm 2, and the limiting structure is used to limit the mounting base 301 when the mounting base 301 is connected to the control arm 2, and the limiting structure includes a first limiting structure and a second limiting structure provided between the mounting base 301 and the control arm 2, and the limiting directions of the first limiting structure and the second limiting structure are different.

[0078] In this embodiment, by setting a limiting structure, the fixing operation of the installation base 301 on the control arm 2 can be facilitated, and the limiting structure includes two limiting structures with different limiting directions, which can achieve a better limiting effect, help to better improve the convenience of the fixing operation of the installation base 301, and can improve the reliability of the fixing of the installation base 301.

[0079] In terms of specific structure, both the first limiting structure and the second limiting structure include a limiting surface provided on the control arm 2 and a limiting flange provided on the mounting base 301. Each limiting flange abuts against the corresponding limiting surface, and the limiting surface in the first limiting structure is located at one side of the control arm 2, and the limiting surface in the second limiting structure is located at the end of the control arm 2. Here, the limiting structure is composed of the matching limiting surface and the limiting flange, which has a simple structure, is convenient for design, and helps to reduce the design and manufacturing costs of the control arm 2.

[0080] For ease of description, in this embodiment, the two limiting surfaces are respectively referred to as the first limiting surface 205 and the second limiting surface 206. The first limiting surface 205 is parallel to the length direction of the rod body 200, and the second limiting surface 206 is arranged orthogonally to the length direction of the rod body 200. Such an arrangement is conducive to ensuring that the limiting directions of the first limiting structure and the second limiting structure are perpendicular, and the limiting effect is good.

[0081] like Figure 8 and Fig. 9 As shown in , the limiting flange in this embodiment includes a first limiting flange 3011 provided on one side of the mounting base 301 and overlapped on the first limiting surface 205, and a second limiting flange 3012 provided on the other side of the mounting base 301 and overlapped on the second limiting surface 206. Here, the first limiting structure and the second limiting structure are respectively provided at both ends of the mounting base 301 and between the boss 203, which is conducive to further improving the installation effect of the mounting base 301.

[0082] To facilitate the folding and forming of the first limiting flange 3011, Figure 8 As shown in , a notch 303 is provided on the main body of the mounting base 301, which is close to the root of the first limiting flange 3011. The notch 303 has a simple structure and is easy to process and form. It can be understood that the first limiting surface 205 can also be provided on the other side of the boss 203. In this case, it is sufficient to ensure that the position of the first limiting flange 3011 and the position of the first limiting surface 205 are consistent.

[0083] The screw connection structure in this embodiment includes a threaded connection hole 204 provided on each limiting surface, a connection through hole 3013 adapted to the threaded connection hole 204, provided on the corresponding limiting flange, and a bolt 304 screwed into the threaded connection hole 204 through the connection through hole 3013. Here, the screw connection structure is integrated at the limiting structure, which can facilitate the setting of the screw connection structure and can also make use of the different limiting directions between the two limiting structures to better ensure the stability of the connection of the screw connection structure.

[0084] As a preferred example, Figure 6 and Figure 8 As shown in , in order to further improve the connection effect between the first limiting flange 3011 and the first limiting surface 205. Corresponding to the first limiting flange 3011, a protrusion 2051 can also be arranged on the boss 203, and the end surface of the protrusion 2051 constitutes the first limiting surface 205, and the threaded connection hole 204 is arranged through the protrusion 2051. The arrangement of the protrusion 2051 is conducive to improving the connection strength between the first limiting surface 205 and the first limiting flange 3011, and the structure of the protrusion 2051 is simple and easy to process and form.

[0085] It should be noted that, in addition to integrating the screw connection structure at the position limiting structure, the screw connection structure can also be located at other positions of the mounting base 301, or a connecting flange can be further provided on the mounting base 301, as long as it can achieve reliable fixation of the mounting base 301 on the rod body 200. In addition, in addition to the screw connection structure using the bolt 304, other screw connection structures that meet the connection requirements can also be used.

[0086] In this embodiment, Figure 8 As shown in the figure, in the thickness direction of the second elastic buffer block 302, the cross section of the second elastic buffer block 302 is gradually reduced in the direction away from the mounting base 301. The cross section of the second elastic buffer block 302 is gradually reduced, so that when it abuts against the frame, the impact force on the upper part with a smaller cross section can be decomposed by the lower part with a larger cross section. At the same time, the lower part with a larger cross section can also increase the connection area between the elastic buffer block and the mounting base 301, which is conducive to improving the buffering stability and the stability of the overall structure of the second buffer assembly 3.

[0087] In specific implementation, the second elastic buffer block 302 can be connected to the mounting base 301 by vulcanization or bonding, and the second elastic buffer block 302 can be made of a rubber material with suitable elasticity and good weather resistance and durability. It should be noted that in other implementation forms, for example, the second buffer assembly 3 can also use a second elastic buffer block 302 directly fixed to the rod body 200, in which case there is no need to set the mounting base 301, and it also has a good use effect.

[0088] The wheel jump limiting structure in the present embodiment is not only simple in structure and easy to arrange and implement, but also can, when the wheel jump is large, cooperate with the buffer limiting structure 6 between the frame and the axle 4 to form a double limiting structure, thereby playing an effective buffering and limiting role, avoiding the problem of wheel jump over-travel interference, and helping to improve the driving comfort of the vehicle.

[0089] Embodiment 2

[0090] The present embodiment relates to a wheel jump limiting structure, which has substantially the same structure as the wheel jump limiting structure in the first embodiment, with the only difference being that the structure of the second buffer component located on the control arm 2 is different.

[0091] In this embodiment, Figures 10 to 16 As shown in , as a preferred embodiment, a receiving groove is provided on the mounting base 301, and the mounting base 301 is in a bowl-shaped structure with a circular cross section. The bottom of the second elastic buffer block 302 is connected to the receiving groove on the mounting base 301, and the cross section of the second elastic buffer block 302 is also circular in shape with the mounting base 301. At this time, the receiving groove is provided on the mounting base 301, and the bowl-shaped structure is provided as a whole, which not only facilitates the setting of the second elastic buffer block 302 on the mounting base 301, but also facilitates the fixing operation of the mounting base 301. The cross section of the second elastic buffer block 302 is set in a shape-conforming manner, which also helps to evenly bear the force when it abuts against the frame, and can ensure the stability of the second buffer assembly 3 in use.

[0092] The second elastic buffer block 302 has a bottom portion located inside the mounting base 301 and a top portion located outside the mounting base 301. The second elastic buffer block 302 is in contact with the frame longitudinal beam 1 through the top portion. Figure 4 and Figure 7 As shown in , the cross section of the inner cavity of the mounting base 301 is also circular, so as to match the bottom portion of the second elastic buffer block 302, thereby facilitating the connection effect between the two. Of course, the cross section of the second elastic buffer block 302 can be in other geometric shapes besides circular, but in this case, the cross section of the inner cavity of the mounting base 301 needs to match the cross section of the bottom portion.

[0093] In some embodiments, the bottom portion and the top portion of the second elastic buffer block 302 have substantially the same specifications, which helps ensure the connection strength between the second elastic buffer block 302 and the mounting base 301, and also helps ensure the abutment effect between the second elastic buffer block 302 and the frame longitudinal beam 1. Of course, in specific implementation, the ratio between the bottom portion and the top portion can also be adaptively adjusted as long as the use requirements are met.

[0094] Still refer to Fig.13 As shown in , a second groove 3021 is provided on the top surface of the second elastic buffer block 302. The second groove 3021 is an annular groove arranged along the circumference of the second elastic buffer block 302, and the second groove 3021 is arranged concentrically. Here, by providing the second groove 3021 on the top of the second elastic buffer block 302, the second elastic buffer block 302 can be better contacted with the frame longitudinal beam 1, which helps to reduce the abnormal sound generated when the two are in contact.

[0095] In a specific implementation, the number of the second grooves 3021 is Fig.13 In addition to the three shown in the figure, the number of the second grooves 3021 can also be increased or decreased according to the use requirements. In addition, the second groove 3021 in this embodiment can be in other shapes besides the annular groove.

[0096] In some embodiments, for example, the second groove 3021 is radially extended along the second elastic buffer block 302, and the multiple second grooves 3021 on the top surface of the second elastic buffer block 302 are arranged at intervals along the circumference of the second elastic buffer block 302, so that the multiple second grooves 3021 are arranged radially, which is also beneficial for the second elastic buffer block 302 to better abut against the frame longitudinal beam 1, and helps to reduce the occurrence of abnormal noise problems.

[0097] In addition, if Fig.13 As shown in , in the thickness direction of the second elastic buffer block 302, the cross section of the second elastic buffer block 302 is gradually reduced in the direction away from the mounting base 301. The cross section of the second elastic buffer block 302 is gradually reduced, so that when it abuts against the frame longitudinal beam 1, the impact force on the upper part with a smaller cross section can be decomposed by the lower part with a larger cross section. At the same time, the lower part with a larger cross section can also increase the connection area between the second elastic buffer block 302 and the mounting base 301, which is conducive to improving the buffering stability and the stability of the overall structure of the second buffer assembly 3.

[0098] like Fig.13 and Fig.16 As shown in the figure, in order to improve the installation effect of the second elastic buffer block 302 on the mounting base 301, the top edge of the mounting base 301 is provided with an outward-turned flange 3015, and the outer peripheral wall of the second elastic buffer block 302 is provided with a radially outward-protruding flange 3022, and the flange 3022 overlaps the flange 3015.

[0099] In this way, the flange 3022 and the flange 3015 are not only conducive to increasing the contact area between the second elastic buffer block 302 and the mounting base 301, but also conducive to improving the abutment effect between the second elastic buffer block 302 and the frame longitudinal beam 1. At the same time, it is also conducive to improving the installation firmness of the second elastic buffer block 302 in the mounting base 301, and is also conducive to decomposing the impact force transmitted from the frame longitudinal beam 1. The flange 3015 and the flange 3022 have simple structures and are easy to process and shape. In addition, the flange 3015 is not only Fig.13 In addition to the regular hexagon shown in the figure, it can also be a circle, a square, or other regular polygons, as long as the use requirements are met.

[0100] like Fig.12 and Fig.13 As shown in , the screw connection structure includes a threaded connection hole 204 provided on the rod body 200, and a connection stud 3014 provided on the mounting base 301, and the connection stud 3014 is screwed into the threaded connection hole 204. The threaded connection hole 204 is located on the inner side of the bushing at the same end, and the axis of the threaded connection hole 204 is arranged positively with the axis of the mounting hole 208. This is conducive to ensuring the abutment of the second elastic buffer block 302 with the frame longitudinal beam 1.

[0101] In some embodiments, the connecting stud 3014 may be disposed on the rod body 200, and the threaded connection hole 204 may be disposed on the mounting base 301. In addition, as a preferred embodiment, Fig.12 As shown in , the boss 203 in the first embodiment is also provided in this embodiment, and the boss 203 is specifically located on the inner side of the same-end connecting ring 201, and extends from the outer peripheral wall of the connecting ring 201 to the end of the rod body 200 along the length direction of the rod body 200. The top of the boss 203 is a plane, and the threaded connection hole 204 is specifically provided at one end of the boss 203 away from the same-end connecting ring 201.

[0102] The boss 203 in this embodiment is not only conducive to molding, but also helps to install the base 301 and even the second buffer assembly 3 on the rod body 200. The mounting base 301 in the installed state abuts against the top surface of the boss 203, which increases the contact area between the mounting base 301 and the boss 203, thereby improving the stability and reliability of the second buffer assembly 3 in use.

[0103] In addition, by providing a boss 203 for mounting the base 301 at one end of the rod body 200, it is also beneficial to improve the structural strength at the mounting point of the mounting base 301, and further improve the connection strength between the mounting base 301 and the rod body 200. In addition, in order to further improve the use effect of the boss 203, the end surface of the boss 203 opposite to the connecting ring 201 at the same end is smoothly transitioned to the side wall of the rod body 200, and an inclined surface is formed.

[0104] The wheel jump limiting structure in this embodiment is not only simple in structure and easy to arrange and implement, but also cooperates with the buffer limit structure 6 to solve the problem that when the wheel jump amplitude is large, the buffering effect of the existing buffer block is limited, and there is a risk of wheel jump over-travel interference, which is beneficial to improving the driving comfort of the vehicle.

[0105] Embodiment 3

[0106] This embodiment relates to a vehicle, in which the wheel jump limiting structure as described in the first or second embodiment is provided.

[0107] The vehicle described in this embodiment is beneficial to improving the driving comfort of the vehicle by providing the above-mentioned wheel jump limiting structure.

[0108] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wheel jump limit structure, characterized in that: It comprises an elastic buffer mechanism arranged between a vehicle frame and a control arm (2) connected to a vehicle axle (4); The elastic buffer mechanism comprises a first buffer component located on the vehicle frame, and the first buffer component is arranged corresponding to the end of the control arm (2) connected to the vehicle axle (4), or the elastic buffer mechanism comprises a second buffer component located on the control arm (2), and the second buffer component is located at the end of the control arm (2) connected to the vehicle axle (4); Under wheel hop excitation, one end of the control arm (2) connected to the vehicle axle (4) can abut against the vehicle frame through the first buffer component or the second buffer component.

2. The wheel jump limiting structure according to claim 1, characterized in that: The first buffer assembly comprises a mounting base plate (104) connected to the vehicle frame, and a first elastic buffer block (105) arranged on the mounting base plate (104).

3. The wheel jump limiting structure according to claim 2 is characterized in that: Along the direction pointing to the control arm (2), the cross section of the first elastic buffer block (105) is gradually reduced; and / or, The first elastic buffer block (105) is provided with a groove at one end close to the control arm (2), and the groove matches the outer shape of the end of the control arm (2).

4. The wheel jump limiting structure according to claim 1, characterized in that: The second buffer assembly comprises a mounting base (301) connected to the end of the control arm (2), and a second elastic buffer block (302) arranged on the mounting base (301).

5. The wheel jump limiting structure according to claim 4 is characterized in that: The mounting base (301) is fixed on the control arm (2) via a screw connection structure.

6. The wheel jump limiting structure according to claim 5, characterized in that: A limiting structure is provided between the mounting base (301) and the control arm (2), the limiting structure being used to limit the mounting base (301) when the mounting base (301) is connected to the control arm (2), and the limiting structure comprises a first limiting structure and a second limiting structure provided between the mounting base (301) and the control arm (2); The first limiting structure and the second limiting structure have different limiting directions.

7. The wheel jump limiting structure according to claim 6, characterized in that: The first limiting structure and the second limiting structure both comprise a limiting surface provided on the control arm (2), and a limiting flange provided on the mounting base (301); Each of the limiting flanges abuts against the corresponding limiting surface, and the limiting surface in the first limiting structure is located at one side of the control arm (2), and the limiting surface in the second limiting structure is located at the end of the control arm (2).

8. The wheel jump limiting structure according to claim 7, characterized in that: The screw connection structure includes a threaded connection hole (204) provided on each of the limiting surfaces, a connection through hole (3013) adapted to the threaded connection hole (204), provided on the corresponding limiting flange, and a bolt (304) screwed into the threaded connection hole (204) through the connection through hole (3013).

9. The wheel jump limiting structure according to any one of claims 4 to 8, characterized in that: A boss (203) is formed on the control arm (2), and the mounting base (301) is fixed on the boss (203); and / or, In the thickness direction of the second elastic buffer block (302), in a direction away from the mounting base (301), the cross section of the second elastic buffer block (302) is gradually reduced.

10. A vehicle, characterized in that: The vehicle is provided with the wheel jump limiting structure according to any one of claims 1 to 9.

Images