Frame and vehicle

Abstract

The utility model provides a frame and a vehicle, relates to the technical field of vehicles, and aims at solving the technical problems that in the early-stage design and research and development process of an electric two-wheeled vehicle, different samples need to be manufactured to verify the controllability and stability of the vehicle, so that the research and development period of the whole vehicle is long, and the research and development cost is high. The bicycle frame comprises a bicycle frame body, a connecting base, a head tube assembly, a supporting base and a connecting tube. The supporting seat is arranged at the front end of the frame body and located on the top of the frame body. The connecting pipe is inserted into the supporting base and extends in the first direction, and the position of the connecting pipe relative to the supporting base is adjustable. One end, facing the connecting seat, of the connecting pipe is rotationally connected with the connecting seat; the head pipe assembly is installed on the connecting base and configured to be used for installing the front fork assembly. According to the frame provided by the invention, the front extending angle and the wheel base can be adaptively adjusted, the controllability and stability verification of the vehicle is completed, the research and development period of the whole vehicle is shortened, and the research and development cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle frame and a vehicle. Background Art

[0002] With the improvement of living standards, electric bicycles have gradually become an important means of transportation. Electric bicycles mainly include electric two-wheeled vehicles, among which the front angle and wheelbase of electric two-wheeled vehicles affect the handling characteristics and stability of two-wheeled vehicles, which is a hot topic in research.

[0003] The electric two-wheeled vehicle includes a frame, a frame head tube and a front fork assembly, wherein the frame is welded to the frame head tube, and the front fork assembly is installed on the frame head tube, resulting in the inability to adjust the reach angle and wheelbase. Therefore, different samples need to be produced during the early design and development process to verify the vehicle's handling and stability, resulting in a long vehicle development cycle and high development costs. Utility Model Content

[0004] In view of the above problems, the embodiments of the present application provide a frame and a vehicle, which can adjust the reach angle and wheelbase for suitability, complete the verification of the vehicle's controllability and stability, shorten the vehicle development cycle and reduce development costs.

[0005] In order to achieve the above objectives, the present application provides the following technical solutions:

[0006] A first aspect of an embodiment of the present application provides a frame, comprising a frame body, a connecting seat, a head pipe assembly, at least one support seat and at least one connecting pipe; along a first direction, the support seat is arranged at the front end of the frame body, and the support seat is located at the top of the frame body along a second direction; the connecting pipe is inserted into the support seat, the connecting pipe extends along the first direction, and the position relative to the support seat along the first direction is adjustable; one end of the connecting pipe facing the connecting seat is rotatably connected to the connecting seat; the head pipe assembly is installed on the connecting seat, and the head pipe assembly is configured to be used for installing a front fork assembly.

[0007] In an optional embodiment, the connecting seat includes two mounting ears arranged opposite to each other along a third direction; the connecting pipe is inserted between the two mounting ears and hinged to the two mounting ears.

[0008] In an optional embodiment, a connecting shaft is further arranged between the connecting seat and the connecting tube; the connecting shaft passes through the two mounting ears and the connecting tube along a third direction, and a limiting member is arranged between the connecting shaft and the connecting tube, and the limiting member limits the movement of the connecting shaft relative to the connecting tube.

[0009] In an optional embodiment, a square mounting portion is provided at the end of the connecting tube; the square mounting portion is provided with a square mounting hole opposite to the mounting ear, and the square mounting hole is provided in cooperation with the connecting shaft; the square mounting portion is provided with a first limiting hole, and the connecting shaft is provided with a second limiting hole, the limiting member is configured as a limiting screw, and the limiting screw is installed in the first limiting hole and the second limiting hole.

[0010] In an optional embodiment, a first expansion sleeve is arranged between the support seat and the connecting tube, and the first expansion sleeve is configured to tighten the connecting tube and limit its axial movement; a second expansion sleeve is arranged between the connecting shaft and the mounting ear, and the second expansion sleeve is configured to limit the rotation of the connecting seat when it is tightened.

[0011] In an optional embodiment, the head pipe assembly includes a head pipe and a mounting plate; the head pipe is arranged on the mounting plate, and a portion of the outer peripheral wall of the head pipe protrudes from the mounting plate; the connecting seat is provided with a positioning groove that cooperates with the head pipe, the mounting plate is fixed on the connecting seat, and the head pipe is clamped and fixed between the mounting plate and the connecting seat.

[0012] In an optional embodiment, the frame includes a first support seat and a second support seat; the first support seat and the second support seat are both used to support the connecting pipe; along the first direction, the first support seat is located in front of the second support seat, the first support seat is detachably connected to the frame body, and the second support seat is fixedly connected to the frame body.

[0013] In an optional embodiment, the frame includes a first connecting tube and a second connecting tube; along the second direction, the first connecting tube is arranged above the second connecting tube, and the first connecting tube and the second connecting tube are both inserted into the first support seat and the second support seat; the distance between the end of the first connecting tube and the first support seat along the first direction is smaller than the distance between the end of the second connecting tube and the first support seat along the first direction.

[0014] In an optional embodiment, the frame includes a first connecting seat and a second connecting seat; the first connecting seat is hinged to the first connecting tube, and the second connecting seat is hinged to the second connecting tube; the first connecting seat and the second connecting seat jointly support the head pipe assembly.

[0015] A second aspect of an embodiment of the present application provides a vehicle, comprising a front fork assembly and the frame described in the first aspect; the frame comprises a head tube assembly, the front fork assembly comprises a steering column and a shock absorber connected thereto, and the steering column is installed in the head tube of the head tube assembly.

[0016] Compared with the related art, the frame and vehicle provided by the embodiment of the present application have the following advantages:

[0017] The frame provided in the embodiment of the present application has a support seat, a connecting seat and a connecting pipe on the frame body, wherein the connecting seat is used to install the head pipe assembly, and the connecting seat is installed on the support seat through the connecting pipe. The connecting seat is hinged to the end of the connecting pipe so that the connecting seat can rotate relative to the frame body and the inclination angle can be adjusted; further, the connecting pipe is inserted into the support seat and can be adjusted relative to the support seat along the front and rear directions of the frame body.

[0018] In the related art, the frame is welded to the head tube of the frame, and the front fork assembly mounted on the head tube of the frame is fixed, resulting in a fixed forward angle of the front fork assembly; and a fixed wheelbase between the front wheel and the rear wheel of the frame. Therefore, different samples need to be produced in the early design and development process to verify the controllability and stability of the vehicle, resulting in a long vehicle development cycle and high development costs.

[0019] However, the frame provided by the embodiment of the present application has an adjustable inclination angle of the connecting seat relative to the frame body, which can adjust the front extension angle of the front fork assembly; and the installation position of the connecting seat relative to the frame body along the front-to-back direction is adjustable, which can adjust the wheelbase between the front wheel and the rear wheel. Therefore, in the early design and development process, the front extension angle and wheelbase of the vehicle can be adaptively adjusted according to different models to complete the verification of the controllability and stability of the vehicle. This process does not require the production of different samples, which can shorten the vehicle development cycle and reduce the development cost.

[0020] In addition to the technical problems solved by the embodiments of the present disclosure, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of the technical solutions described above, other technical problems that can be solved by the frame and vehicle provided by the embodiments of the present disclosure, 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

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative labor.

[0022] Figure 1 A schematic diagram of the overall structure of a frame provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0024] Figure 3 A schematic diagram of the connection between the frame body and the support seat provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the connection between the frame body and the first support seat and the second support seat provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the arrangement of the first connecting pipe and the second connecting pipe provided in an embodiment of the present application;

[0027] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0028] Figure 7 This is a schematic structural diagram of a head pipe assembly provided in an embodiment of the present application.

[0029] Description of reference numerals:

[0030] 10-frame body; 11-first fixing tube; 12-second fixing tube;

[0031] 20-support seat;

[0032] 20a-first support base; 20b-second support base;

[0033] 30-connecting pipe;

[0034] 31-square mounting portion; 311-square mounting hole;

[0035] 30a-first connecting pipe; 30b-second connecting pipe;

[0036] 40-connection seat;

[0037] 40a-first connecting seat; 40b-second connecting seat;

[0038] 50-head pipe assembly;

[0039] 51-mounting plate; 52-head pipe;

[0040] 60-first expansion sleeve;

[0041] 70-second expansion sleeve;

[0042] 80-connecting shaft;

[0043] 90-limiting piece;

[0044] 100-Frame. DETAILED DESCRIPTION

[0045] In the related art, different samples need to be produced during the early design and development process of electric two-wheeled vehicles to verify the vehicle's maneuverability and stability, which results in a long vehicle development cycle and high development costs. The inventors have found that the reason for this problem is:

[0046] The electric two-wheeled vehicle includes a frame, a frame head tube and a front fork assembly, wherein the front fork assembly is mounted on the frame head tube, and the frame and the frame head tube are welded to fix the front fork assembly mounted on the frame head tube, resulting in a fixed forward angle of the front fork assembly and a fixed wheelbase between the front wheel and the rear wheel of the frame. Therefore, different samples need to be produced in the early design and development process to complete the verification of the vehicle's controllability and stability, resulting in a long vehicle development cycle and high development costs.

[0047] In view of the above problems, the embodiment of the present application provides a frame and a vehicle, wherein a support seat, a connecting seat and a connecting pipe are arranged on the frame body of the frame, wherein the connecting seat is used to install the head pipe assembly, and the connecting seat is installed on the support seat through the connecting pipe. The connecting seat is hinged to the end of the connecting pipe so that the connecting seat can rotate relative to the frame body and the inclination angle can be adjusted; further, the connecting pipe is inserted into the support seat and can be adjusted relative to the support seat along the front and rear directions of the frame body.

[0048] With such a configuration, the tilt angle of the connecting seat of the frame of the embodiment of the present application relative to the frame body is adjustable, and the front extension angle of the front fork assembly can be adjusted; and the installation position of the connecting seat relative to the frame body along the front-to-back direction is adjustable, and the wheelbase between the front wheel and the rear wheel can be adjusted. Therefore, in the early design and development process, the front extension angle and wheelbase of the vehicle are adaptively adjusted according to different models to complete the verification of the controllability and stability of the vehicle. This process does not require the production of different samples, which can shorten the vehicle development cycle and reduce the development cost.

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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 creative work are within the scope of protection of this application.

[0050] To facilitate the description of the embodiments of the present application, the coordinate system in the accompanying drawings is first described. The X-axis is a first direction, which may be the front and rear direction of the frame; the Z-axis is a second direction, which may be the height direction of the frame; and the Y-axis is a third direction, which may be the left and right direction of the frame.

[0051] like Figures 1 to 3As shown, the frame 100 provided in the embodiment of the present application includes a frame body 10. The frame body 10 may be a frame structure composed of a plurality of pipes. The frame body 10 has a plurality of mounting points for mounting a plurality of components. For example, the frame body 10 may be welded from a plurality of metal pipes and may provide a plurality of mounting points for components such as a battery compartment, a shock absorbing eye, and a rear fork, which will not be described in detail in the embodiment of the present application.

[0052] The frame 100 further includes at least one support seat 20, which is disposed at the front end of the frame body 10 along the first direction; and the support seat 20 is disposed at the top end of the frame body 10 along the second direction. The support seat 20 is used to support or install the connecting pipe 30. The connecting pipe 30 is inserted into the support seat 20, and the connecting pipe 30 extends along the first direction, and the installation position relative to the support seat 20 along the first direction can be adjusted.

[0053] For example, the connecting tube 30 is configured as a round tube; the support seat 20 is configured as a mounting block, the mounting block is provided with an insertion hole that cooperates with the connecting tube 30, and the insertion hole is provided in cooperation with the connecting tube 30, the connecting tube 30 is inserted into the insertion hole, and can move relative to the support seat 20 in a first direction; after the adjustment is completed, the connecting tube 30 is fixed on the support seat 20.

[0054] like Figure 4 and Figure 5 As shown, a first expansion sleeve 60 is provided between the support seat 20 and the connecting pipe 30 in the embodiment of the present application. The first expansion sleeve 60 is sleeved in the insertion hole, and the first expansion sleeve 60 is configured to fasten the connecting pipe 30 and limit its axial movement.

[0055] It is understandable that when the position of the connecting tube 30 needs to be adjusted, the fasteners of the first expansion sleeve 60 can be loosened to expand the aperture of the first expansion sleeve 60, so that the connecting tube 30 can move axially relative to the support seat 20. After the adjustment is completed, the fasteners of the first expansion sleeve 60 can be tightened so that the first expansion sleeve 60 tightens the connecting tube 30.

[0056] Furthermore, the vehicle frame 100 provided in the embodiment of the present application also includes a connecting seat 40, which is arranged in front of the connecting tube 30 along the first direction, and the connecting seat 40 is rotatably connected to the end of the connecting tube 30 close to it. In other words, one end of the connecting tube 30 facing the connecting seat 40 is rotatably connected to the connecting seat 40; this arrangement enables the connecting seat 40 to rotate relative to the connecting tube 30.

[0057] Exemplarily, the connecting tube 30 is inserted into the connecting seat 40, a connecting shaft 80 is inserted between the connecting seat 40 and the connecting tube 30, and the connecting seat 40 can rotate relative to the connecting shaft 80. For example, the connecting seat 40 is provided with a hinge hole, and a second expansion sleeve 70 is sleeved in the hinge hole, and the second expansion sleeve 70 is configured to limit the rotation of the connecting seat 40 when it is tightened.

[0058] It is understandable that when the angle of the connection seat 40 needs to be adjusted, the fastener of the second expansion sleeve 70 can be loosened to expand the aperture of the second expansion sleeve 70, so that the connection seat 40 can be rotated relative to the connection pipe 30 to adjust the inclination angle of the connection seat 40. After the angle adjustment of the connection seat 40 is completed, the fastener of the second expansion sleeve 70 can be tightened to reduce the aperture of the second expansion sleeve 70, thereby limiting the rotation of the connection seat 40 relative to the connection shaft 80.

[0059] like Figure 7 As shown, the frame 100 provided in the embodiment of the present application further includes a head pipe assembly 50, which is mounted on the connecting seat 40. The head pipe assembly 50 includes a head pipe 52 and a mounting plate 51. The head pipe 52 may be a circular pipe, a portion of the outer peripheral wall of the head pipe 52 is fixed to the mounting plate 51, and another portion of the outer peripheral wall of the head pipe 52 protrudes from the surface of the mounting plate 51, and the protruding portion is connected to the connecting seat 40.

[0060] Furthermore, the connection seat 40 is provided with a positioning groove matched with the head pipe 52, and the positioning groove is arranged toward the head pipe 52. When the head pipe assembly 50 is installed on the connection seat 40, part of the outer peripheral wall of the head pipe 52 is embedded in the positioning groove, and the mounting plate 51 is fixed on the connection seat 40, so that the head pipe 52 is clamped and fixed between the mounting plate 51 and the connection seat 40, thereby fixing the head pipe assembly 50 on the connection seat 40.

[0061] For example, the mounting plate 51 is configured as a rectangular plate, and the side of the connecting seat 40 facing the mounting plate 51 is a plane, and the plane can be fitted with the mounting plate 51. The mounting plate 51 has a groove, and part of the outer peripheral wall of the head pipe 52 is embedded in the groove. The groove is arranged in coordination with the positioning groove, and when the mounting plate 51 is fitted with the plane of the connecting seat 40, the groove and the positioning groove form a mounting hole for clamping the head pipe 52, and the diameter of the mounting hole is consistent with the diameter of the head pipe 52.

[0062] It is understandable that the mounting plate 51 and the head pipe 52 can be an integral structure, the mounting plate 51 is provided with a plurality of fastening bolts, the connecting seat 40 is provided with threaded holes matching with the fastening bolts, and the mounting plate 51 is installed on the connecting seat 40 by the fastening bolts.

[0063] In the related art, the frame is welded to the head tube of the frame to fix the front fork assembly mounted on the head tube of the frame, resulting in a fixed forward angle of the front fork assembly and a fixed wheelbase between the front wheel and the rear wheel of the frame. Different samples need to be produced in the early design and development process to complete the verification of the vehicle's handling and stability, resulting in a long vehicle development cycle and high development costs.

[0064] However, the frame 100 provided in the embodiment of the present application has an adjustable inclination angle of the connecting seat 40 relative to the frame body 10, which can adjust the extension angle of the front fork assembly; and the installation position of the connecting seat 40 relative to the frame body 10 along the front-to-rear direction thereof is adjustable, which can adjust the wheelbase between the front wheel and the rear wheel.

[0065] Therefore, in the early design and development process, the vehicle's forward angle and wheelbase can be adjusted according to different models to verify the vehicle's handling and stability. This process does not require the production of different samples, which can shorten the vehicle's development cycle and reduce development costs.

[0066] On the basis of the above embodiment, the connection seat 40 includes two mounting ears, which are arranged at intervals along the third direction to form an insertion space. One end of the connection pipe 30 is inserted into the insertion space, that is, the connection pipe 30 is inserted between the two mounting ears, and the connection pipe 30 is hinged on the two mounting ears so that the mounting ears can rotate relative to the connection pipe 30.

[0067] Further, the mounting ear is provided with a hinge hole matched with the connecting shaft 80, and the connecting shaft 80 can penetrate two mounting ears and the connecting pipe 30 along the third direction. A limiter 90 is provided between the connecting shaft 80 and the connecting pipe 30, and the limiter 90 can limit the movement of the connecting shaft 80 along its axial direction.

[0068] like Figure 6 As shown, the end of the connecting pipe 30 provided in the embodiment of the present application is provided with a square mounting portion 31, and the square mounting portion 31 is provided close to the connecting seat 40. When the connecting pipe 30 is inserted between the two mounting ears, the square mounting portion 31 is located between the two mounting ears. The square mounting portion 31 is provided with a square mounting hole 311, and the square mounting hole 311 is arranged opposite to the mounting ear, so that the connecting shaft 80 passes through the mounting ear, the square mounting portion 31 and the mounting ear in sequence along the third direction.

[0069] The square mounting portion 31 is provided with a first limiting hole, and the first limiting hole is located on the top surface of the square mounting portion 31 along the second direction. The connecting shaft 80 is provided with a second limiting hole, and the second limiting hole is arranged in cooperation with the first limiting hole. When the connecting shaft 80 is inserted into the connecting seat 40 and the connecting tube 30, the first limiting hole can be directly opposite to the second limiting hole, and the limiting member 90 is inserted into the first limiting hole and the second limiting hole, which can limit the movement of the connecting shaft 80 relative to the connecting tube 30.

[0070] It is understandable that the above-mentioned limit member 90 can be a limit screw, the first limit hole and the second limit hole are threaded holes respectively, and the limit screw can be fastened in the first limit hole and the second limit hole to fix the connecting shaft 80 and the connecting tube 30, thereby limiting the movement of the connecting shaft 80 relative to the connecting tube 30, including but not limited to limiting the movement of the connecting shaft 80 along the third direction, and limiting the movement of the connecting shaft 80 along the first direction.

[0071] Continue reading Figure 2 As shown, the frame 100 provided in the embodiment of the present application includes two support seats 20, which are respectively a first support seat 20a and a second support seat 20b, and the first support seat 20a and the second support seat 20b are both used to support or install the connecting pipe 30; wherein the first support seat 20a and the second support seat 20b are spaced apart along the first direction, and the first support seat 20a is arranged on the front side of the second support seat 20b.

[0072] Correspondingly, the frame body 10 includes a first fixing tube 11 and a second fixing tube 12, wherein the top of the first fixing tube 11 has a first plug interface, and the first plug interface cooperates with the first support seat 20a. The first support seat 20a is inserted into the first fixing tube 11, and the two are further fixedly connected by fasteners, that is, the first support seat 20a is detachably connected to the frame body 10.

[0073] The second fixing tube 12 has a second plugging port on its top, and the second plugging port matches the second support seat 20b. The second support seat 20b is inserted into the second plugging port and welded to the second fixing tube 12, that is, the second support seat 20b is fixedly connected to the frame body 10.

[0074] In one embodiment, a dovetail groove is provided on the side wall of the first fixed tube 11, and a dovetail boss that cooperates with the dovetail groove is provided on the first support seat 20a. The first support seat 20a can be inserted into the first fixed tube 11 through the dovetail boss, and can be further fixed by a fastener inserted between the first fixed tube 11 and the first support seat 20a.

[0075] Such a configuration can facilitate the first support seat 20a to be inserted into the frame body 10, and further fix the first support seat 20a to the frame 100 through fasteners. In addition, in the embodiment of the present application, the first support seat 20a is inserted into the frame 100, so that the first support seat 20a can be selectively installed on the frame body 10 according to the length of the connecting pipe 30, avoiding interference between the first support seat 20a and the connecting seat 40.

[0076] On the basis of the above embodiment, the frame 100 provided in the embodiment of the present application further includes two connecting tubes 30, the two connecting tubes 30 are respectively a first connecting tube 30a and a second connecting tube 30b, and along the second direction, the first connecting tube 30a is arranged above the second connecting tube 30b.

[0077] Correspondingly, the first support seat 20a has two insertion holes spaced apart at the top and bottom, and the second support seat 20b has two insertion holes spaced apart at the top and bottom. A first expansion sleeve 60 is arranged in each insertion hole, so that the first connecting tube 30a and the second connecting tube 30b are sequentially inserted into the first support seat 20a and the second support seat 20b, and the installation positions of the first connecting tube 30a and the second connecting tube 30b along the first direction are adjustable.

[0078] Furthermore, the first connecting tube 30a and the second connecting tube 30b provided in the embodiment of the present application have different lengths, and the end of the first connecting tube 30a close to the connecting seat 40 and the end of the second connecting tube 30b close to the connecting seat 40 are staggered along the first direction, wherein the end of the second connecting tube 30b close to the connecting seat 40 protrudes beyond the end of the first connecting tube 30a close to the connecting seat 40 along the first direction.

[0079] In other words, the distance between the end of the first connecting tube 30a and the first supporting seat 20a along the first direction is smaller than the distance between the end of the second connecting tube 30b and the first supporting seat 20a along the first direction. In this way, the connecting seat 40 can be tilted along the first direction so that the bottom of the connecting seat 40 is tilted toward the front side relative to the top.

[0080] On the basis of the above embodiment, the frame 100 provided in the embodiment of the present application further includes a first connection seat 40a and a second connection seat 40b, and the first connection seat 40a is arranged above the second connection seat 40b along the second direction, wherein the first connection seat 40a is hinged to the first connection tube 30a, the second connection seat 40b is hinged to the second connection seat 40b, and the first connection seat 40a and the second connection seat 40b jointly support the head pipe assembly 50. It can be understood that the first connection seat 40a and the second connection seat 40b are jointly connected to the mounting plate 51 of the head pipe assembly 50, and the first connection seat 40a and the second connection seat 40b can rotate synchronously.

[0081] The embodiment of the present application also provides a vehicle, which may be a two-wheeled vehicle, such as an electric two-wheeled vehicle, a bicycle, and a motorcycle, etc., but the embodiment of the present application is not limited to this.

[0082] Specifically, the vehicle includes a frame 100, a front wheel, a rear wheel, a steering handle and a front fork assembly, wherein along the vehicle's driving direction (first direction), the front fork assembly is arranged at the front end of the frame 100, and is respectively connected to the steering handle and the wheel axle of the front wheel, so as to control the driving direction of the vehicle through the steering handle. The front wheel is installed at the bottom of the front fork assembly and is located at the front end of the frame 100, and the rear wheel is arranged at the rear end of the frame 100.

[0083] The frame 100 includes a head tube assembly 50 disposed at the front end, and the head tube assembly 50 is used to install a front fork assembly, wherein the inclination angle of the head tube assembly 50 relative to the frame body 10 is adjustable, and the head tube assembly 50 can be adjusted in the front and rear directions relative to the frame body 10.

[0084] Further, the front fork assembly includes a steering column, two shock absorbers and a connecting plate, wherein the two shock absorbers and the steering column are respectively arranged on both sides of the connecting plate. For example, the steering column extends along the second direction, and the steering column is installed in the head tube 52 of the head tube assembly 50. One end of the steering column is connected to the steering handle, and the other end of the steering column is connected to the connecting plate. One end of the shock absorber is detachably connected to the connecting plate, and the other end of the shock absorber is connected to the wheel axle of the front wheel. The two shock absorbers are clamped on both sides of the front wheel, that is, the shock absorber is a front shock absorber.

[0085] The vehicle provided in the embodiment of the present application has an adjustable tilt angle of the head pipe assembly 50 relative to the frame body 10, which can adjust the front angle of the front fork assembly; and the installation position of the head pipe assembly 50 relative to the frame body 10 along the front-to-back direction thereof is adjustable, which can adjust the wheelbase between the front wheel and the rear wheel. Therefore, in the early design and development process, the front angle and wheelbase of the vehicle can be adjusted according to different models to complete the verification of the controllability and stability of the vehicle. This process does not require the production of different samples, which can shorten the vehicle development cycle and reduce the development cost.

[0086] It should be noted that the vehicle provided in the embodiment of the present application may be a sample vehicle in the early stage of design, so as to design a suitable front angle and wheelbase for the vehicle and improve the maneuverability and stability of the vehicle. Of course, the vehicle may also be a mature product launched on the market to meet the needs of users with different requirements for vehicle maneuverability, and the maneuverability and stability of the vehicle may be adjusted by quickly adjusting the front angle and wheelbase of the vehicle.

[0087] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the specification of the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0088] 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 it. 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A frame, characterized in that: It includes a frame body, a connecting seat, a head pipe assembly, at least one supporting seat and at least one connecting pipe; The support seat is disposed at the front end of the frame body along the first direction, and the support seat is located at the top of the frame body along the second direction; The connecting tube is inserted into the supporting seat, the connecting tube extends along a first direction, and its position relative to the supporting seat along the first direction is adjustable; one end of the connecting tube facing the connecting seat is rotatably connected to the connecting seat; The head pipe assembly is mounted on the connecting seat, and the head pipe assembly is configured to be used for mounting a front fork assembly.

2. The frame according to claim 1, characterized in that: The connecting seat comprises two mounting ears arranged opposite to each other along a third direction; The connecting pipe is inserted between the two mounting ears and is hinged on the two mounting ears.

3. The frame according to claim 2, characterized in that: A connecting shaft is also provided between the connecting seat and the connecting pipe; The connecting shaft is penetrated by two mounting ears and a connecting pipe along the third direction, and a limiting member is arranged between the connecting shaft and the connecting pipe, and the limiting member limits the movement of the connecting shaft relative to the connecting pipe.

4. The frame according to claim 3, characterized in that: The end of the connecting pipe is provided with a square mounting portion; The square mounting portion is provided with a square mounting hole opposite to the mounting ear, and the square mounting hole is matched with the connecting shaft; The square mounting portion is provided with a first limiting hole, the connecting shaft is provided with a second limiting hole, the limiting member is configured as a limiting screw, and the limiting screw is installed in the first limiting hole and the second limiting hole.

5. The frame according to claim 3, characterized in that: A first expansion sleeve is provided between the support seat and the connecting pipe, and the first expansion sleeve is configured to tighten the connecting pipe and limit its axial movement; A second expansion sleeve is disposed between the connecting shaft and the mounting ear, and the second expansion sleeve is configured to limit the rotation of the connecting seat when the second expansion sleeve is tightened.

6. The frame according to any one of claims 1 to 5, characterized in that: The head pipe assembly includes a head pipe and a mounting plate; The head pipe is arranged on the mounting plate, and a portion of the outer peripheral wall of the head pipe protrudes from the mounting plate; The connecting seat is provided with a positioning groove matched with the head pipe, the mounting plate is fixed on the connecting seat, and the head pipe is clamped and fixed between the mounting plate and the connecting seat.

7. The frame according to claim 6, characterized in that: The frame includes a first support seat and a second support seat; The first support seat and the second support seat are both used to support the connecting pipe; Along the first direction, the first support seat is located at the front side of the second support seat, the first support seat is detachably connected to the frame body, and the second support seat is fixedly connected to the frame body.

8. The frame according to claim 7, characterized in that: The frame includes a first connecting tube and a second connecting tube; Along the second direction, the first connecting tube is arranged above the second connecting tube, and the first connecting tube and the second connecting tube are both inserted into the first supporting seat and the second supporting seat; The distance between the end of the first connecting tube and the first supporting seat along the first direction is smaller than the distance between the end of the second connecting tube and the first supporting seat along the first direction.

9. The frame according to claim 8, characterized in that: The frame includes a first connecting seat and a second connecting seat; The first connection seat is hinged to the first connection tube, and the second connection seat is hinged to the second connection tube; The first connecting seat and the second connecting seat jointly support the head pipe assembly.

10. A vehicle, characterized in that: A frame comprising a front fork assembly and any one of claims 1 to 9; The frame comprises a head tube assembly, the front fork assembly comprises a steering column and a shock absorber connected thereto, and the steering column is installed in a head tube of the head tube assembly.

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