Front suspension and vehicle

Abstract

A front suspension (100) and a vehicle. The front suspension comprises an integrated mounting base (10), an upper swing arm (40), a lower swing arm (50), a steering arm (20), a front shock absorber (60) and a front fork assembly (70), wherein in a first direction, the upper swing arm (40) and the lower swing arm (50) are arranged opposite each other and spaced apart from each other, and a first end of the upper swing arm (40) and a first end of the lower swing arm (50) are rotationally connected to the integrated mounting base (10); a second end of the upper swing arm (40) and a second end of the lower swing arm (50) are connected to the front fork assembly (70) by means of spherical hinge structures; the steering arm (20) is rotationally connected to the integrated mounting base (10), and a steering rod (30) is arranged between the steering arm (20) and the front fork assembly (70; and two ends of the front shock absorber (60) are respectively connected to the integrated mounting base (10) and the lower swing arm (50). In the front suspension (100) and the vehicle, various components of the front suspension (100) can be integrated on the integrated mounting base (10), thereby reducing the mounting difficulty between a vehicle frame and the front suspension (100), and improving the machining precision of the vehicle frame.

Description

Front suspension and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 29, 2023, with application number 202322342834.8 and application name “Front Suspension and Vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of vehicle technology, and in particular to a front suspension and a vehicle. Background Art

[0003] The front suspension of a motorcycle transmits the up and down vibrations of the front wheel during bumps and sudden braking to the shock absorber. The spring in the shock absorber extends or compresses and works together with the damper to ensure the effective contact of the front wheel with the ground and the height of the entire vehicle, while reducing vibration and giving the human body a comfortable riding experience.

[0004] Current fork-type front suspensions typically include a front fork assembly, an upper swing arm, a lower swing arm, and a shock absorber. The front wheel is mounted at the bottom of the front fork assembly, the upper and lower swing arms are positioned between the front fork assembly and the vehicle frame, and the shock absorber is positioned between the lower swing arm and the frame. This provides grip and shock absorption during bumps and sudden braking. However, these front suspension components are directly mounted on the vehicle frame, requiring high frame machining precision and presenting significant installation challenges.

[0005] Summary of the Invention

[0006] In view of the above problems, an embodiment of the present application provides a front suspension and a vehicle, which can integrate various components of the front suspension on its integrated mounting seat, reduce the installation difficulty between the frame and the front suspension, and reduce the processing accuracy of the frame.

[0007] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0008] The first aspect of an embodiment of the present application provides a front suspension, including an integrated mounting seat, an upper swing arm, a lower swing arm, a steering arm, a front shock absorber and a front fork assembly; along a first direction, the upper swing arm and the lower swing arm are arranged opposite to each other and at intervals, and the first end of the upper swing arm and the first end of the lower swing arm are rotatably connected to the integrated mounting seat; the second end of the upper swing arm and the second end of the lower swing arm are connected to the front fork assembly through a ball joint structure; the steering arm is rotatably connected to the integrated mounting seat, and the steering arm is used to be connected to the handlebar; a steering rod is provided between the steering arm and the front fork assembly; the front shock absorber extends along the first direction, and one end of the front shock absorber is connected to the integrated mounting seat, and the other end of the front shock absorber is connected to the lower swing arm.

[0009] In an optional embodiment, a connecting column is provided on the top of the integrated mounting seat along the first direction; the integrated mounting seat is rotatably connected to the steering arm through the connecting column.

[0010] In an optional embodiment, a mounting ear is provided on a side of the integrated mounting seat facing the front shock absorber, and one end of the front shock absorber is hinged to the mounting ear.

[0011] In an optional embodiment, along the third direction, the integrated mounting seat includes a first side wall and a second side wall arranged opposite to each other; the first side wall and the second side wall are respectively provided with a first mounting hole connected to the first end of the upper swing arm, and the two first mounting holes are arranged opposite to each other along the third direction; the first side wall and the second side wall are respectively provided with a second mounting hole connected to the first end of the lower swing arm, the two second mounting holes are arranged opposite to each other along the third direction, and along the first direction, the first mounting hole is located above the second mounting hole.

[0012] In an optional embodiment, the upper swing arm and the lower swing arm are arranged parallel to each other along the second direction, and their projections relative to the planes in which the second and third directions are located are triangular; the upper swing arm includes a first support arm and a second support arm, and the first end of the first support arm and the first end of the second support arm are respectively mounted on the first rotating shaft assembly, and the first rotating shaft assembly is mounted in the first mounting hole; the second end of the first support arm and the second end of the second support arm are combined together and connected to the front fork assembly through the ball joint structure; the lower swing arm includes a third support arm and a fourth support arm, and the first end of the third support arm and the first end of the fourth support arm are respectively mounted on the second rotating shaft assembly, and the second rotating shaft assembly is mounted in the second mounting hole; the second end of the third support arm and the second end of the fourth support arm are combined together and connected to the front fork assembly through the ball joint structure.

[0013] In an optional embodiment, the front fork assembly includes front fork tubes that are arranged relative to and at intervals; a first connecting plate and a second connecting plate are arranged between the two front fork tubes, and the first connecting plate is arranged above the second connecting plate along the first direction; the first connecting plate is provided with a first ball head seat, and the second end of the upper swing arm is provided with a first ball head connected to the first ball head seat, and the first ball head seat and the first ball head form the ball hinge structure; the second connecting plate is provided with a second ball head seat, and the second end of the lower swing arm is provided with a second ball head connected to the second ball head seat, and the second ball head seat and the second ball head form the ball hinge structure.

[0014] In an optional embodiment, the first connecting plate is provided with a plug-in tube, and a first steering ball rod connected to the steering rod is provided in the plug-in tube; a first steering ball seat and a second steering ball seat are provided at both ends of the steering rod, and the first steering ball seat is connected to the first steering ball rod; the steering arm is provided with a second steering ball rod, and the second steering ball rod is connected to the second steering ball seat.

[0015] In an optional embodiment, two steering rods are provided between the first connecting plate and the steering arm; the two steering rods are spaced apart along the third direction, and each steering rod extends obliquely along the second direction.

[0016] A second aspect of an embodiment of the present application provides a vehicle comprising a frame, a front wheel and the front suspension described in the first aspect; the front suspension comprises an integrated mounting seat and a front fork assembly linked thereto, and the front suspension is mounted on the frame via the integrated mounting seat; the front wheel is mounted on the bottom of the front fork assembly.

[0017] In an optional embodiment, the vehicle further includes a handlebar; the front suspension further includes a steering arm, and the handlebar is connected to the steering arm and drives the steering arm to rotate.

[0018] Compared with related technologies, the front suspension and vehicle provided by the embodiments of the present application have the following advantages:

[0019] The front suspension and vehicle provided in the embodiments of the present application include an integrated mounting base, an upper swing arm, a lower swing arm, a steering arm, a front shock absorber, and a front fork assembly. The upper and lower swing arms are pivotally connected to the integrated mounting base and the front fork assembly at both ends, respectively. The shock absorber is connected between the lower swing arm and the integrated mounting base. This arrangement allows the vertical vibration of the front wheel during bumps and sudden braking to be transmitted to the shock absorber, achieving a shock-absorbing effect.

[0020] Furthermore, a steering arm is arranged on the top of the integrated mounting seat, the steering arm is connected to the handlebar, and a steering rod is provided between the steering arm and the front fork assembly, that is, by turning the handlebar, the steering force can be transmitted to the front fork assembly through the steering rod.

[0021] In summary, the front suspension provided in the embodiment of the present application, its upper swing arm, lower swing arm, front shock absorber and steering arm can be directly installed on the integrated mounting seat, and the steering rod and front fork assembly can be indirectly installed on the integrated mounting seat, so that the front suspension can be integrated on the integrated mounting seat.

[0022] Compared with the solution in the related art in which the components of the above-mentioned front suspension are directly installed on the frame, which has high requirements on the frame precision and is difficult to install, the embodiment of the present application integrates the components of the front suspension on the integrated mounting seat, and further installs them on the frame through the integrated mounting seat, which can reduce the processing precision of the frame, reduce the installation difficulty between the frame and the front suspension, and improve the installation efficiency.

[0023] In addition to the technical problems solved by the embodiments of the present application, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the front suspension and vehicle provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] FIG1 is a schematic diagram of the overall structure of the handlebars, front wheel and front suspension provided in an embodiment of the present application;

[0026] FIG2 is a structural schematic diagram of a front suspension according to an embodiment of the present application;

[0027] FIG3 is a second structural diagram of a front suspension provided in an embodiment of the present application;

[0028] FIG4 is a schematic structural diagram of an upper swing arm provided in an embodiment of the present application;

[0029] FIG5 is a schematic structural diagram of a lower swing arm provided in an embodiment of the present application;

[0030] FIG6 is a schematic structural diagram of an integrated mounting base provided in an embodiment of the present application;

[0031] FIG7 is a schematic structural diagram of a front fork assembly provided in an embodiment of the present application;

[0032] FIG8 is a schematic diagram showing the connection between the steering rod and the steering arm provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 100-Front suspension;

[0035] 10-Integrated mounting base;

[0036] 11-connecting column; 12-mounting ear; 13-first mounting hole; 14-second mounting hole; 15-avoidance groove;

[0037] 20-steering arm;

[0038] 30-steering rod;

[0039] 31-first steering ball seat; 32-first steering ball rod; 33-second steering ball seat; 34-second steering ball rod;

[0040] 40-upper swing arm;

[0041] 41-first support arm; 42-second support arm; 43-first ball head;

[0042] 44-first rotating shaft assembly; 441-first rotating shaft; 442-first needle roller bearing;

[0043] 50-lower arm;

[0044] 51-third support arm; 52-fourth support arm; 53-second ball head;

[0045] 54-second rotating shaft assembly; 541-second rotating shaft; 542-second needle roller bearing;

[0046] 60-front shock absorber;

[0047] 70-front fork assembly;

[0048] 71-front fork tube;

[0049] 72-first connecting plate; 721-first ball seat; 722-insertion tube;

[0050] 73-second connecting plate; 731-second ball seat;

[0051] 200-handlebars;

[0052] 300-Front wheel. DETAILED DESCRIPTION

[0053] The prior art motorcycle front suspension and frame assembly is difficult and requires high frame machining precision. The inventors discovered that this problem arises because the components of the current front suspension are directly connected to the frame, resulting in multiple mating points on the frame. This increases the machining precision and difficulty of the frame, and also makes assembly between the frame and the front suspension more difficult.

[0054] In response to the above problems, an embodiment of the present application provides a front suspension, in which the upper control arm, lower control arm, front shock absorber and steering arm can be directly installed on the integrated mounting seat, and the steering rod and front fork assembly can be indirectly installed on the integrated mounting seat, so that the front suspension can be integrated on the integrated mounting seat.

[0055] With such a configuration, in the embodiment of the present application, the front suspension is integrated and installed on the integrated mounting seat, and further installed on the frame through the integrated mounting seat, which can reduce the design accuracy of the frame, reduce the installation difficulty between the frame and the front suspension, and improve the installation efficiency.

[0056] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0057] The vehicle provided in the embodiments of the present application may be a two-wheeled vehicle or a three-wheeled vehicle. For example, the vehicle may be a two-wheeled electric vehicle or a two-wheeled motorcycle, but this embodiment does not limit this. This embodiment is described using a two-wheeled electric vehicle or a two-wheeled motorcycle as an example.

[0058] To facilitate the description of the vehicle provided in the embodiment of the present application, it is necessary to explain the coordinate system in the accompanying drawings, wherein the Z-axis direction is the first direction, which is defined as the up and down directions of the vehicle; the Y-axis direction is the second direction, which is defined as the front and rear directions of the vehicle; and the X-axis direction is the third direction, which is defined as the left and right directions of the vehicle package.

[0059] As shown in Figure 1, the vehicle provided in the embodiment of the present application is a two-wheeled vehicle, which includes a frame, a front suspension 100, a rear suspension (not shown in the figure), a front wheel 300, a rear wheel (not shown in the figure) and a handlebar 200; wherein along the second direction, the rear suspension is connected to the rear end of the frame, and along the first direction, the rear wheel is installed at the bottom of the rear suspension. The rear suspension is configured so that when the vehicle is driving on a bumpy road or braking, the rear suspension can keep the rear wheel in contact with the ground and absorb shock.

[0060] Furthermore, in the second direction, the front suspension 100 is mounted at the front end of the frame, near the handlebars 200. In the first direction, the front wheel 300 is mounted at the bottom of the front suspension 100, and the handlebars 200 are mounted at the top. Turning the handlebars 200 can steer the front wheel 300. Similarly, the front suspension 100 is configured to maintain contact with the ground and reduce vibration when the vehicle is driving on bumpy roads or braking. This ensures grip and vibration reduction during bumpy or sudden braking.

[0061] As shown in Figures 2 and 3, the front suspension 100 provided in the embodiment of the present application includes a front fork assembly 70, an integrated mounting base 10, and an upper swing arm 40, a lower swing arm 50, a steering arm 20, and a front shock absorber 60 integrated and installed on the integrated mounting base 10, wherein along the second direction, the integrated mounting base 10 is arranged between the front fork assembly 70 and the front end of the frame, and the integrated mounting base 10 has an overall rectangular structure. The integrated mounting base 10 has a flat surface on one side facing the frame along the second direction, and the integrated mounting base 10 can be installed in a fit with the front end of the frame using the flat surface. Such an arrangement improves the installation reliability of the integrated mounting base 10 and the frame.

[0062] Along the second direction, the upper swing arm 40 and the lower swing arm 50 are arranged between the front fork assembly 70 and the integrated mounting base 10. Along the first direction, the upper swing arm 40 is arranged above the lower swing arm 50 and maintains a gap, that is, along the first direction, the upper swing arm 40 and the lower swing arm 50 are arranged opposite to each other and spaced apart.

[0063] Preferably, the upper swing arm 40 and the lower swing arm 50 are arranged in parallel and opposite to each other. Along the second direction, the extension lengths of the upper swing arm 40 and the lower swing arm 50 are the same. Such an arrangement allows the upper swing arm 40 and the lower swing arm 50 to maintain synchronous movement when receiving the force from the shock absorber, thereby improving the shock absorption effect.

[0064] In the embodiment of the present application, the upper swing arm 40 and the lower swing arm 50 respectively have a first end and a second end along the second direction. The first end of the upper swing arm 40 is rotatably connected to the integrated mounting base 10, and the second end of the upper swing arm 40 is connected to the front fork assembly 70 via a ball-and-hitch structure, so that the upper swing arm 40 can swing freely relative to the integrated mounting base 10 and the front fork assembly 70. Similarly, the first end of the lower swing arm 50 is rotatably connected to the integrated mounting base 10, and the second end of the lower swing arm 50 is connected to the front fork assembly 70 via a ball-and-hitch structure, so that the lower swing arm 50 can swing freely relative to the integrated mounting base 10 and the front fork assembly 70.

[0065] Specifically, in one embodiment, the upper swing arm 40 and the lower swing arm 50 are projected in a triangle relative to the plane where the second direction and the third direction are located, that is, the upper swing arm 40 and the lower swing arm 50 are in a triangle as a whole.

[0066] As shown in FIG4 , the upper swing arm 40 includes a first arm 41 and a second arm 42. The first end of the first arm 41 and the first end of the second arm 42 are respectively rotatably connected to the integrated mounting base 10. The second end of the first arm 41 and the second end of the second arm 42 are combined and rotatably connected to the front fork assembly 70 via a ball joint structure. For example, the second end of the first arm 41 and the second end of the second arm 42 are integrally structured. This arrangement can improve the reliability of the connection between the upper swing arm 40 and the integrated mounting base 10, as well as the reliability of the shock absorber installation on the lower swing arm 50.

[0067] As shown in Figure 5, the lower arm 50 includes a third arm 51 and a fourth arm 52. The first end of the third arm 51 and the first end of the fourth arm 52 are respectively pivotally connected to the integrated mounting base 10. The second end of the third arm 51 and the second end of the fourth arm 52 are combined and pivotally connected to the front fork assembly 70 via a ball joint structure. For example, the second end of the third arm 51 and the second end of the fourth arm 52 are integrally formed. This arrangement improves the reliability of the connection between the lower arm 50 and the integrated mounting base 10, as well as the reliability of the shock absorber installation on the lower arm 50.

[0068] As shown in FIG6 , the integrated mounting base 10 provided in an embodiment of the present application includes a first sidewall and a second sidewall disposed opposite each other in a third direction. The first sidewall and the second sidewall are configured to connect to the upper swing arm 40 and the lower swing arm 50. For example, each of the first and second sidewalls is provided with a first mounting hole 13, with the first mounting holes 13 disposed opposite each other along the third direction. The first and second sidewalls are also provided with a second mounting hole 14, with the two second mounting holes 14 disposed opposite each other along the third direction, and the second mounting holes 14 are located below the first mounting holes 13 along the first direction.

[0069] When the upper swing arm 40 is installed to the integrated mounting base 10, the first end of the first support arm 41 is located on one side of the first side wall, the first end of the second support arm 42 is located on one side of the second side wall, and the first ends of the first support arm 41 and the second support arm 42 are respectively installed in the first mounting hole 13 through the first rotating shaft assembly 44.

[0070] When the lower swing arm 50 is installed to the integrated mounting base 10, the first end of the third arm 51 is located on one side of the first side wall, the first end of the fourth arm 52 is located on one side of the second side wall, and the first ends of the third arm 51 and the fourth arm 52 are respectively installed in the second mounting hole 14 through the second rotating shaft assembly 54.

[0071] It should be noted that the structures of the first rotating shaft assembly 44 and the second rotating shaft assembly 54 are the same. Taking the first rotating shaft assembly 44 as an example, the first rotating shaft assembly 44 includes a first rotating shaft 441, a first needle bearing 442 sleeved on the first rotating shaft 441, and other bearing positioning or sealing accessories, etc. The first rotating shaft 441 can be inserted into the first mounting hole 13, and the first end of the upper swing arm 40 is sleeved on the first needle bearing 442 to achieve a rotational connection relative to the integrated mounting seat 10; accordingly, the second rotating shaft assembly 54 includes a second rotating shaft 541, a second needle bearing 542 sleeved on the second rotating shaft 541, and other bearing positioning or sealing accessories, etc., which are not elaborated in this embodiment.

[0072] Furthermore, the first mounting hole 13 and the second mounting hole 14 pass through the entire integrated mounting seat 10 along the third direction. Accordingly, the rotating shaft of each rotating shaft assembly is passed through the integrated mounting seat 10, and each rotating shaft has at least one needle bearing at both ends.

[0073] In the embodiment of the present application, the front shock absorber 60 extends along the first direction, and the bottom end of the front shock absorber 60 is connected to the lower arm 50, the top end of the front shock absorber 60 is connected to the integrated mounting base 10, and at least part of the front shock absorber 60 is located in the avoidance groove 15 of the integrated mounting base 10.

[0074] For example, a mounting ear 12 is provided on the side of the integrated mounting base 10 facing the front shock absorber 60. The top end of the front shock absorber 60 is hingedly connected to the mounting ear 12 and is capable of swinging relative to the integrated mounting base 10. The bottom end of the front shock absorber 60 is mounted on the lower arm 50 via a pin and is capable of swinging relative to the integrated mounting base 10. Furthermore, a clearance groove 15 is provided on the side of the integrated mounting base 10 facing the front fork assembly 70 in the second direction, which cooperates with the front shock absorber 60 and forms a clearance space for the front shock absorber 60, thereby reducing the installation space of the front suspension 100.

[0075] To steer the front wheel 300, the steering arm 20 is rotatably connected to the top of the integrated mounting base 10. The handlebar 200 is fixedly connected to the steering arm 20, so that rotation of the handlebar 200 drives the steering arm 20 relative to the integrated mounting base 10. A steering rod 30 is disposed between the steering arm 20 and the front fork assembly 70. The two ends of the steering rod 30 are connected to the steering arm 20 and the front fork assembly 70, respectively, via a ball joint structure. This drives the front fork assembly 70, and thus the front wheel 300, to steer via the steering rod 30.

[0076] The front suspension 100 provided in the embodiment of the present application, its upper swing arm 40, lower swing arm 50, front shock absorber 60 and steering arm 20 can be directly installed on the integrated mounting base 10, and the steering rod 30 and front fork assembly 70 can be indirectly installed on the integrated mounting base 10, so that the front suspension 100 can be integrated on the integrated mounting base 10.

[0077] Compared with the solution in the related art in which the components of the above-mentioned front suspension are directly installed on the frame, which has high requirements on the frame precision and is difficult to install, in the embodiment of the present application, the components of the front suspension 100 are integrated and installed on the integrated mounting base 10, and further installed on the frame through the integrated mounting base 10, which can reduce the design precision of the frame, reduce the installation difficulty between the frame and the front suspension 100, and improve the installation efficiency.

[0078] Continuing to refer to Figure 6, based on the above embodiment, a connecting column 11 is provided on the top of the integrated mounting base 10 in the embodiment of the present application. For example, a connecting column 11 is provided on the top surface of the integrated mounting base 10, and the connecting column 11 protrudes from the top surface of the integrated mounting base 10 and extends along the first direction.

[0079] The steering arm 20 is provided with a socket that mates with the connecting post 11. The connecting post 11 is inserted into the socket and is connected to the connecting post 11 with a nut. The nut restrains the connecting post 11 on the steering arm 20 to prevent the connecting post 11 from falling out of the socket. Furthermore, a bearing is provided between the connecting post 11 and the wall of the socket to enable the steering arm 20 to rotate relative to the connecting post 11. In other words, rotating the handlebar 200 rotates the steering arm 20 relative to the integrated mounting base 10, thereby enabling the handlebar 200 to rotate relative to the frame.

[0080] As shown in Figures 7 and 8, the front fork assembly 70 in the embodiment of the present application includes front fork tubes 71 arranged opposite and spaced apart from each other. The front fork tubes 71 may be carbon fiber tubes to reduce the weight of the front fork assembly 70. A first connecting plate 72 and a second connecting plate 73 are disposed between the two front fork tubes 71. The first connecting plate 72 and the second connecting plate 73 are disposed through the two front fork tubes 71 to maintain the spacing between the two front fork tubes 71 and enhance the structural strength of the front fork assembly 70. The first connecting plate 72 is located above the second connecting plate 73 in a first direction and is spaced apart therefrom. The first connecting plate 72 is configured to connect to the second end of the upper swing arm 40, and the second connecting plate 73 is configured to connect to the second end of the lower swing arm 50.

[0081] Specifically, a ball-and-hitch structure is provided between the first connecting plate 72 and the second end of the upper swing arm 40, connecting them together via the ball-and-hitch structure. A ball-and-hitch structure is provided between the second connecting plate 73 and the second end of the lower swing arm 50, connecting them together via the ball-and-hitch structure. To distinguish these ball-and-hitch structures, the ball-and-hitch structure between the first connecting plate 72 and the second end of the upper swing arm 40 can be defined as a first ball-and-hitch structure, while the ball-and-hitch structure between the second connecting plate 73 and the second end of the lower swing arm 50 can be defined as a second ball-and-hitch structure.

[0082] The first ball-jointed structure includes a first ball head seat 721 and a first ball head 43 cooperating therewith. The first ball head seat 721 is fixed on the first connecting plate 72, and the first ball head 43 is installed on the second end of the upper swing arm 40. The first ball head 43 is embedded in the first ball head seat 721, that is, the upper swing arm 40 can be installed on the first ball head seat 721 through the first ball head 43 to achieve multi-degree-of-freedom swing relative to the front fork assembly 70.

[0083] Similarly, the second ball-jointed structure includes a second ball head seat 731 and a second ball head 53 cooperating therewith. The second ball head seat 731 is fixed on the second connecting plate 73, and the second ball head 53 is installed on the second end of the lower swing arm 50. The second ball head 53 is embedded in the second ball head seat 731, that is, the lower swing arm 50 can be installed on the second ball head seat 731 through the second ball head 53 to achieve multi-degree-of-freedom swing relative to the front fork assembly 70.

[0084] Furthermore, a steering rod 30 is disposed between the first coupling plate 72 and the steering arm 20, and its ends are connected to the first coupling plate 72 and the steering arm 20 respectively via a ball-and-hitch structure. Specifically, a first steering ball seat 31 and a second steering ball seat 33 are provided at each end of the steering rod 30. The first coupling plate 72 is provided with a plug-in tube 722, into which the first steering ball rod 32 is inserted. The first steering ball rod 32 can be inserted into the first steering ball seat 31. The first steering ball seat 31 and the first steering ball rod 32 form a ball-and-hitch structure, enabling the steering rod 30 to rotate with multiple degrees of freedom relative to the first coupling plate 72.

[0085] A second steering ball rod 34 is provided at the bottom of the steering arm 20, and the second steering ball rod 34 is installed in a second steering ball seat 33 close to it. The second steering ball seat 33 and the second steering ball rod 34 form a ball-hinged structure to enable the steering rod 30 to rotate with multiple degrees of freedom relative to the steering arm 20.

[0086] It should be noted that the front suspension 100 in the embodiment of the present application includes two steering rods 30, which are arranged parallel and spaced apart along the third direction. Each steering rod 30 extends obliquely along the second direction and has the same length. The second steering ball seat 33 is located at a greater height than the first steering ball seat 31. This arrangement improves the reliability of the steering mechanism in the front suspension 100 system, ensures the two steering rods steer at the same speed, and enhances steering control accuracy.

[0087] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0088] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0089] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A front suspension, characterized in that: Includes integrated mounting bracket, upper swing arm, lower swing arm, steering arm, front shock absorber and front fork assembly; Along the first direction, the upper swing arm and the lower swing arm are arranged opposite to each other and spaced apart, the first end of the upper swing arm and the first end of the lower swing arm are rotatably connected to the integrated mounting seat; the second end of the upper swing arm and the second end of the lower swing arm are connected to the front fork assembly through a ball joint structure; The steering arm is rotatably connected to the integrated mounting seat, and the steering arm is used to be connected to the handlebar; a steering rod is arranged between the steering arm and the front fork assembly; The front shock absorber extends along a first direction, one end of the front shock absorber is connected to the integrated mounting seat, and the other end of the front shock absorber is connected to the lower swing arm.

2. The front suspension according to claim 1, characterized in that: Along the first direction, a connecting column is provided on the top of the integrated mounting seat; The integrated mounting seat is rotatably connected to the steering arm through the connecting column.

3. The front suspension according to claim 1, characterized in that: A mounting ear is provided on one side of the integrated mounting seat facing the front shock absorber, and one end of the front shock absorber is hinged to the mounting ear.

4. The front suspension according to claim 1, characterized in that: Along the third direction, the integrated mounting seat includes a first side wall and a second side wall that are oppositely arranged; The first side wall and the second side wall are respectively provided with a first mounting hole connected to the first end of the upper swing arm, and the two first mounting holes are arranged opposite to each other along the third direction; The first side wall and the second side wall are respectively provided with a second mounting hole connected to the first end of the lower swing arm, the two second mounting holes are arranged opposite to each other along the third direction, and along the first direction, the first mounting hole is located above the second mounting hole.

5. The front suspension according to claim 4, characterized in that: The upper swing arm and the lower swing arm are arranged in parallel along the second direction, and the projections relative to the plane where the second direction and the third direction are located are in a triangular shape; The upper swing arm includes a first support arm and a second support arm, the first end of the first support arm and the first end of the second support arm are respectively mounted on the first rotating shaft assembly, and the first rotating shaft assembly is mounted in the first mounting hole; The second end of the first support arm and the second end of the second support arm are combined together and connected to the front fork assembly through the ball joint structure; The lower swing arm includes a third arm and a fourth arm, the first end of the third arm and the first end of the fourth arm are respectively mounted on the second rotating shaft assembly, and the second rotating shaft assembly is mounted in the second mounting hole; The second end of the third arm and the second end of the fourth arm are combined together and connected to the front fork assembly through the ball joint structure.

6. The front suspension according to any one of claims 1 to 5, characterized in that: The front fork assembly includes front fork tubes that are arranged oppositely and at intervals; A first connecting plate and a second connecting plate are arranged between the two front fork tubes, and the first connecting plate is arranged above the second connecting plate along the first direction; The first connecting plate is provided with a first ball head seat, the second end of the upper swing arm is provided with a first ball head connected to the first ball head seat, and the first ball head seat and the first ball head form the ball hinge structure; The second connecting plate is provided with a second ball head seat, the second end of the lower swing arm is provided with a second ball head connected to the second ball head seat, and the second ball head seat and the second ball head form the ball hinge structure.

7. The front suspension according to claim 6, characterized in that: The first connecting plate is provided with a plug-in tube, and a first steering ball rod connected to the steering rod is provided in the plug-in tube; The two ends of the steering rod are respectively provided with a first steering ball seat and a second steering ball seat. connected to the first steering ball bar; The steering arm is provided with a second steering ball rod, and the second steering ball rod is connected to the second steering ball seat.

8. The front suspension according to claim 7, characterized in that: Two steering rods are arranged between the first connecting plate and the steering arm; The two steering rods are arranged at intervals along the third direction, and each steering rod extends obliquely along the second direction.

9. A vehicle, characterized in that: A vehicle comprising a frame, a front wheel and a front suspension as claimed in any one of claims 1 to 8; The front suspension comprises an integrated mounting seat and a front fork assembly linked thereto, and the front suspension is mounted on the frame via the integrated mounting seat; The front wheel is mounted on the bottom of the front fork assembly.

10. The vehicle according to claim 9, characterized in that The vehicle also includes a handlebar; The front suspension also includes a steering arm, and the handlebar is connected to the steering arm and drives the steering arm to rotate.

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