Novel two-wheeled vehicle

Abstract

The invention relates to the technical field of two-wheeled vehicles, in particular to a novel two-wheeled vehicle which comprises a vehicle frame and a rear bottom fork, the front end of the rear bottom fork is connected to the vehicle frame, the vehicle frame comprises a front structure and a rear structure, and the front structure and the rear structure are formed by magnesium alloy or aluminum alloy through die casting or thixoforming; the rear bottom fork comprises a supporting arm, the supporting arm comprises an outer side supporting wall, an inner side supporting wall and an upper side supporting wall which are integrally formed, and the cross section of the middle section of the supporting arm is in a C shape with a downward opening. Functional parts can be placed in the basket-shaped frame, external parts such as covering parts do not need to be specially arranged outside the basket-shaped frame, the problem that external parts of an existing two-wheeled vehicle do not have load supporting elements is solved, and meanwhile the defects that the number of parts is large, the number of procedures is large, and a production line is complex due to the fact that a center framework frame is adopted are overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of two-wheeled vehicles, which include fuel two-wheeled vehicles, electric two-wheeled vehicles, and light electric two-wheeled vehicles, and in particular to a new type of two-wheeled vehicle. Background Art

[0002] Traditional two-wheeled vehicles utilize welded iron pipes to form a central skeleton frame, functional components, and coverings. Designed functional components such as the engine or motor, headlights, instrument panel, steering column, and rear fork are typically welded to the central skeleton frame or fixedly mounted on it using designed connectors. The functional components and central skeleton frame are then encased or partially encased with injection-molded resin exterior components such as side covers and body panels. These two-wheeled vehicles suffer from the numerous assembly connectors, numerous installation steps, and complex production lines. Furthermore, the iron pipe frame and resin components require separate coating lines, resulting in high costs and VOC emissions. Furthermore, the coating resin has low recyclability, posing environmental concerns.

[0003] In addition, existing technologies have also proposed replacing iron tube frames with casting to reduce the number of iron tubes and improve assembly precision. For example, in Japanese Patent Applications Nos. 2000-313391, 2000-313392, and 2000-313393, iron front and rear frames are cast in one piece or in separate pieces to improve vehicle body rigidity and assembly precision. However, in these cases, the frame still uses a center skeleton frame, and the exterior components are formed and installed separately through resin injection molding, failing to achieve integration of the exterior components with the structure.

[0004] Furthermore, these existing technologies fail to fundamentally revolutionize conventional structures from the perspective of load distribution within the vehicle frame structure, as exterior components are not designed as load-bearing elements. In particular, they focus solely on the cast frame itself, failing to incorporate integrated exterior component design or the concept of stress distribution within the surface structure. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a new two-wheeled vehicle, which solves the problem that the exterior parts of existing two-wheeled vehicles do not have load-bearing elements, and at the same time solves the defects of the central skeleton frame with a large number of parts, many processes and a complex production line.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A novel two-wheeled vehicle comprises a frame and a rear fork, wherein the front end of the rear fork is connected to the frame, the frame comprises a front structure and a rear structure, the front structure comprises a front panel and a head pipe, the front panel comprises a front outer panel and a front inner panel, the head pipe is located on the front inner panel, and the front outer panel, the front inner panel and the head pipe are integrally formed; the rear structure comprises a rear panel, the front end of the rear panel is directly or indirectly connected to the rear end of the front panel connection; the front outer panel, the front inner panel, the head pipe, and the rear rear panel are all made of magnesium alloy or aluminum alloy through die casting or thixoforming; the rear flat fork includes a support arm, the front end of the support arm is provided with a pivot portion, and the pivot portion is provided with a transverse pivot portion mounting hole, the support arm includes an outer support wall, an inner support wall and an upper support wall, the outer support wall, the inner support wall, the upper support wall and the pivot portion are formed as one piece, and the cross section of the middle section of the support arm is a C-shape with an opening downward.

[0007] The frame using the above technical solution is a basket-type frame made of magnesium alloy or aluminum alloy through die-casting or thixotropy. It can not only support the entire vehicle body, but also place functional parts inside the basket-type frame. There is no need to specially set up external components such as covers on the outside, which solves the problem that the external components of existing two-wheeled vehicles do not have load-bearing support elements. At the same time, it solves the defects of the central skeleton frame with a large number of parts, many processes and complex production lines.

[0008] Further, in the above technical solution, the specific structure of the rear end panel is defined, the rear end panel includes an outer rear end panel and an inner rear end panel, and the outer rear end panel and the inner rear end panel are formed in one piece; the lower section of the inner rear end panel is provided with a rear fork mounting boss matching the pivot portion, and the rear fork mounting boss is provided with a transverse fork mounting hole, and the front end of the rear fork is hingedly fixed to the outside of the rear fork mounting boss by a bolt passing through the fork mounting hole and the pivot portion mounting hole; the rear fork mounting boss and the inner rear end panel are both made of magnesium alloy or aluminum alloy and formed in one piece by die casting or thixotropy.

[0009] The installation method of the rear shock absorber of a two-wheeled vehicle is further limited, that is, a rear shock absorber upper mounting boss is provided on the upper part of the rear inner panel, the upper end of the rear shock absorber is mounted on the rear shock absorber upper mounting boss, and the lower end of the rear shock absorber is mounted on the rear section of the rear fork, and the rear shock absorber upper mounting boss and the rear inner panel are both made of magnesium alloy or aluminum alloy through die-casting or thixotropic molding.

[0010] In addition, the structure of the basket-type frame is further limited, and the front structure also includes a front rear panel. The front front panel and the front rear panel are connected to form a front cavity with an open upper end. On the one hand, this front cavity can conveniently accommodate the front functional parts of the two-wheeled vehicle, and on the other hand, it can form a more stable front structure, ensuring a rigid structure against front wheel load and torsion.

[0011] By the same token, in order to form a more stable rear structure and ensure the load on the rear wheels and the accommodation of the rear functional parts, the rear structure is defined to also include a front rear panel, and the front rear panel and the rear rear panel are connected to form a rear cavity with an open upper end.

[0012] In addition, the present invention adopts a new structure of the rear flat fork, that is, the rear flat fork also includes a cross beam, the support arm includes a left support arm and a right support arm, the left side of the cross beam is connected to the front part of the left support arm, and the right side of the cross beam is connected to the front part of the right support arm, the cross beam, left support arm and right support arm are formed as one piece, the connection between the left support arm and the cross beam, and the connection between the right support arm and the cross beam are both set as curved connections, and the inner wall of the curved connection is provided with a connection truss reinforcement rib.

[0013] Taking into account the needs of vehicle models with different wheelbases, an extended pedal structure is further provided on the front panel and the rear panel. The extended pedal structure includes a middle side panel, and the middle side panel is divided into a middle left panel and a middle right panel. The front ends of the middle left panel and the middle right panel are connected to the rear end of the front panel, and the rear ends of the middle left panel and the middle right panel are connected to the front end of the rear panel. The middle left panel and the middle right panel are both made of magnesium alloy or aluminum alloy by die casting or thixoforming.

[0014] It is further defined that the extended pedal portion structure also includes a pedal floor, and the middle left plate and the middle right plate are integrally formed with or fixedly connected to the pedal floor.

[0015] In addition, the structure of the front panel of the vehicle is specifically defined, that is, the inner panel of the front of the vehicle includes an inner bottom plate at the bottom and an inner support plate at the top, the inner bottom plate is concave inward toward the rear of the two-wheeled vehicle to form a curved surface, and the inner support plate is located above the inner bottom plate and is vertically connected to the head pipe; a vertical left reinforcement plate and a right reinforcement plate are provided on the side of the head pipe, and a vertical front reinforcement plate is provided in front of the head pipe, and the front reinforcement plate, the left reinforcement plate, the right reinforcement plate and the head pipe are made of magnesium alloy or aluminum alloy through die-casting or thixotropic molding.

[0016] In addition, the design on the seat cushion also makes full use of the advantages of this basket-type frame, that is, it is defined to also include a seat cushion structure, a storage box is provided in the rear cavity, and the middle section of the rear inner panel is provided with a storage box mounting boss that matches the bottom of the storage box, and a storage box mounting boss through-hole is provided on the storage box mounting boss, and a storage box mounting hole is provided at the corresponding position of the bottom of the storage box. The storage box is fixed to the rear inner panel after passing through the storage box mounting hole and the storage box mounting boss through-hole by bolts; the seat cushion structure includes a seat cushion body, a front mounting bracket, a rear lock bracket and a seat cushion lock, and the front end of the seat cushion body is fixedly mounted with the front mounting bracket. The mounting bracket is fixedly installed below the rear end of the seat cushion body, and the front mounting bracket is hinged at the upper part of the front end of the storage box; a seat cushion lock mounting platform is also provided at the middle position of the upper part of the rear inner panel, the seat cushion lock is fixedly installed on the seat cushion lock mounting platform, and a rear lock bracket through hole is provided on the rear side of the storage box. When the seat cushion is in a locked state, the rear lock bracket passes through the rear lock bracket through hole and is locked to the seat cushion lock. The seat cushion body is supported on the storage box, the front rear panel and the rear rear panel, and the seat cushion body airtightly covers the storage box and the upper part of the rear cavity surrounded by the front rear panel and the rear rear panel.

[0017] The frame using the above-mentioned technical solution serves as both a supporting main frame and an exterior component. It is made of low-melting-point, lightweight, and highly recyclable metal materials such as magnesium alloy or aluminum alloy, and is integrally or partially formed by die-casting or thixoforming, integrating the frame and exterior functions into a single structure. Conventional scooter frames have problems such as increased weight, increased number of processes, and complex painting and recycling. Furthermore, the exterior components are only used to maintain their shape and do not bear any load. The present invention aims to address these issues by utilizing the exterior components as structural bodies to achieve a lightweight, highly rigid, and environmentally friendly scooter frame structure.

[0018] The rear fork employing this technical solution utilizes truss-like reinforcements to continuously connect the outer, inner, and upper support walls, achieving high rigidity and load distribution while maintaining an open bottom cross-section. This balances appearance and cleanliness, with the truss structure's internal mud and dirt invisible and unaffecting the aesthetics. The closed inner support wall design prevents mud accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of a novel two-wheeled vehicle of the present invention; Figure 2 It is a schematic diagram of the left side of a novel two-wheeled vehicle of the present invention; Figure 3 It is a schematic diagram of the right side of a novel two-wheeled vehicle of the present invention; Figure 4 This is a schematic diagram of the front panel of the vehicle; Figure 5 This is a schematic diagram of the rear apron; Figure 6 It is a schematic diagram of a vehicle frame consisting of a front panel and a rear panel; Figure 7 It is a three-dimensional schematic diagram of the rear flat fork; Figure 8 This is a top view rotation diagram of the rear fork; Figure 9 This is a schematic diagram of the rear fork rotated from an upward perspective; Figure 10 This is a schematic diagram of the main view of the rear fork; Figure 11 yes Figure 9 A magnified schematic diagram of part A; Figure 12 It is a three-dimensional schematic diagram of the seat cushion mechanism installed on the storage box and the rear structure of the frame; Figure 13 This is a three-dimensional exploded diagram of the rear shock absorber and rear fork installed on the rear rear panel of the vehicle; Figure 14 This is a schematic diagram of the front view of the rear shock absorber and rear flat fork installed on the rear rear panel of the vehicle; Figure 15 It is a three-dimensional schematic diagram of the upper connecting part. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figures 1-15As shown, the present invention relates to a scooter-type two-wheeled vehicle, in particular, a frame that uses exterior components as structural components and a monocoque frame formed of a lightweight metal material such as a magnesium alloy. This new two-wheeled vehicle includes a frame, a rear fork 6, a rear shock absorber 7, a seat cushion structure 4, and a storage box 5; the frame includes a front structure, an extended scooter structure, and a rear structure; the front structure includes a front panel 11, a rear panel 12, and a head pipe 13; the front panel 11 and the rear panel 12 are 12 is connected to form a front cavity with an upper end opening; the front cavity accommodates the lower end of the steering handle of the two-wheeled vehicle, the headlight and the front tool box, the front panel 11 includes a front outer panel 111 and a front inner panel 112, the front inner panel 112 includes an inner bottom panel 1121 at the bottom and an inner support panel 1122 at the top, the inner bottom panel 1121 is concave toward the rear of the two-wheeled vehicle to form a curved surface, and the curved surface matches the space for the rotation of the front wheel of the two-wheeled vehicle and cannot interfere with the rotation of the front wheel The inner support plate 1122 is located above the inner bottom plate 1121 and is vertically connected to the head pipe 13; a left reinforcing plate 1123 and a right reinforcing plate 1124 are provided on the side of the head pipe 13 in a vertical direction, and a front reinforcing plate 1125 is provided in the front of the head pipe 13 in a vertical direction; the head pipe 13 is located on the inner support plate 1122; the rear structure includes a front rear panel 31 and a rear rear panel 32, and the front rear panel 31 and the The rear end panel 32 is connected to form a rear cavity with an upper end opening, and the rear cavity is usually a space for placing a storage box; the extended pedal structure includes a middle side panel, which is divided into a middle left panel 221 and a middle right panel 222. The front ends of the middle left panel 221 and the middle right panel 222 are connected to the rear end of the front panel 11, and the rear ends of the middle left panel 221 and the middle right panel 222 are connected to the front end of the rear end panel 32. Of course, the front end of the rear end panel 32 can also be directly connected to the rear end of the front panel 11.

[0022] The rear fork 6 includes a support arm and a crossbeam 30. The support arm can be set as a unilateral support arm to match the unilateral rear shock absorber, or as Figure 7 、 Figure 8 and Figure 9The support arm shown is arranged as a double-sided support arm, and the support arm includes a left support arm 10 and a right support arm 20. When the left side of the cross beam 30 is connected to the front part of the left support arm 10, the right side of the cross beam 30 is connected to the front part of the right support arm 20, or the cross beam 30, the left support arm 10 and the right support arm 20 are formed as one piece, the connection between the left support arm 10 and the cross beam 30, and the connection between the right support arm 20 and the cross beam 3 are both arranged as a curved connection 301, and the inner wall of the curved connection 301 is provided with a connection truss reinforcement rib 302. The front ends of the left support arm 10 and the right support arm 20 are both provided with a pivot portion 62, and the pivot portion 62 is provided with a transverse pivot portion mounting hole 621. The support arm is composed of an outer support wall 611, an inner support wall 612 and an upper support wall 613. The outer support wall 611, the inner support wall 612, the upper support wall 613 and the pivot portion 62 are integrally formed, and the cross-section of the middle section of the support arm is a C-shape with an opening facing downward.

[0023] The rear flat fork of the present invention continuously connects the outer support wall 611, the inner support wall 612 and the upper support wall 613 through truss-like reinforcement ribs, achieving high rigidity and load distribution while maintaining an open cross-section of the bottom surface. Molding method: The support arm is designed as a truss structure, eliminating the traditional sliding mold, and only two upper and lower molds are required for molding. This simplifies the mold structure, shortens the molding cycle, improves temperature stability, and facilitates thin-wall molding. The appearance and cleanliness of the product manufactured using this technical solution are taken into account, and the mud and dirt inside the truss structure are invisible and do not affect the aesthetics; the non-open design of the inner support wall 612 avoids mud accumulation defects. Stress concentration relief: At the connection between the support arm and the crossbeam, truss reinforcement ribs are three-dimensionally configured for the bending points of the inner wall, thereby effectively alleviating local stress concentration. Applicable materials and molding methods: It is recommended to use magnesium alloy or aluminum alloy die-casting, or semi-solid molding. The truss rib structure is particularly suitable for semi-solid molding processes with small solidification shrinkage.

[0024] like Figure 5 、 Figure 6 As shown, the rear panel 32 includes a rear outer panel 321 and a rear inner panel 322, which are integrally formed. The lower section of the rear inner panel 322 is provided with a rear fork mounting boss 3221 that matches the pivot portion 62. The rear fork mounting boss 3221 is provided with a transverse fork mounting hole 32211. The front end of the rear fork 6 is hingedly fixed to the outer side of the rear fork mounting boss 3221 by a bolt passing through the fork mounting hole 32211 and the pivot portion mounting hole 621. Rear shock absorber upper mounting bosses 3222 are provided on the left and right sides of the upper section of the rear inner panel 322, and a seat cushion lock mounting platform 3224 is also provided in the middle of the upper section of the rear inner panel 322. The upper end of the rear shock absorber 7 is mounted on the rear shock absorber upper mounting bosses 3222, and the lower end of the rear shock absorber 7 is mounted on the rear section of the rear fork 6. The middle section of the rear inner panel 32 is provided with a storage box mounting boss 3223 that matches the bottom of the storage box 5. The storage box mounting boss through-hole 32231 is provided on the storage box mounting boss 3223. A storage box mounting hole is provided at a corresponding position on the bottom of the storage box 5. The storage box 5 is fixed to the rear inner panel 32 by passing bolts through the storage box mounting hole and the storage box mounting boss through-hole 32231. The seat cushion structure 4 includes a seat cushion body 41, a front mounting bracket 42, a rear lock bracket 43 and a seat cushion lock 44. The front mounting bracket 42 is fixedly mounted on the front end of the seat cushion body 41, and the rear lock bracket 43 is fixedly mounted below the rear end of the seat cushion body 41. The front mounting bracket 42 is hinged to the upper part of the front end of the storage box 5; the seat cushion lock 44 is fixedly mounted on the seat cushion lock mounting platform 3224, and a rear lock bracket through hole 52 is provided on the rear side of the storage box 5. When the seat cushion is in a locked state, the rear lock bracket 43 passes through the rear lock bracket through hole 52 and is locked to the seat cushion lock 44. The seat cushion body 41 is supported on the storage box 5, the front rear panel 31 and the rear rear panel 32, and the seat cushion body 41 tightly covers the storage box 5 and the upper part of the rear cavity surrounded by the front rear panel 31 and the rear rear panel 32.

[0025] In addition, the vehicle frame also includes an extended pedal structure, which includes a central side panel. The central side panel is divided into a central left panel 221 and a central right panel 222. The front ends of the central left panel 221 and the central right panel 222 are connected to the rear end of the front panel 11, and the rear ends of the central left panel 221 and the central right panel 222 are connected to the front end of the rear panel 32. A pedal floor 21 is also provided at the upper ends of the central left panel 221 and the central right panel 222. The central left panel 221 and the central right panel 222 are integrally formed with or fixedly connected to the pedal floor 21.

[0026] The front structure integrates the lower end of the head tube with the front inner panel, creating a box-like structure with the front dash panel 11 and the front rear panel 12. This ensures rigidity against front wheel loads and torsional torsions, and can stably support steering loads and road reaction forces. These components are die-cast or semi-solid-formed from magnesium or aluminum alloys, achieving lightweight and high-precision molding. The rear dash panel 31 and rear rear panel 32 are formed continuously into a box-like structure. High rigidity is achieved through the box-like structure and reinforcing ribs on the rear shock mounting boss 3222 and the rear fork mounting boss 3221. This ensures reliable support for rear wheel loads and suspension reaction forces.

[0027] In the above specific embodiment, the front end of the rear panel 32 can be directly connected to the rear end of the front panel 11 according to the length requirements and design needs of the vehicle body. The front end of the rear panel 32 can also be indirectly connected to the rear end of the front panel 11, that is, a new extended pedal structure is added, and the extended pedal structure can also include a pedal floor 21, the front end of the pedal floor 21 is connected to the rear end of the front panel 11, and the rear end of the pedal floor 21 is connected to the front end of the rear panel 32. This modular approach can meet the needs of vehicle bodies of different lengths. The technology of the present invention is not only applicable to pedal-type two-wheeled vehicles, but can also be applied to similar small vehicles, electric motorcycles, electric vehicles for delivery, etc., and is of great practical value in the design of lightweight and environmentally friendly vehicles in the future. In the above technical solution, the head pipe 13 is a hollow cylindrical component that supports the steering mechanism and is arranged above the front structure to transfer the steering load and the road impact load to the lower structure; the front inner panel 112 is formed in a concave dome shape to prevent the invasion of foreign matter splashed by the front wheel, and the inner side is combined with the lower end of the head pipe 13 to ensure space to adapt to the steering angle of the front wheel; the front outer panel 11 forms a box-type structure together with the front inner panel 112 while forming the appearance design, thereby enhancing the overall torsional rigidity and the vertical rigidity; the encirclement of the front inner panel 112 and the front outer panel 11 ensures rigidity. In addition, in the middle section of the head pipe 13 and the front of the vehicle, there is a space for the front wheel to be adjusted. A left reinforcing plate 1123, a right reinforcing plate 1124 and a front reinforcing plate 1125 are added between the panels 11 to support the head pipe from all sides, further enhance the strength of the head pipe 13 and improve the rigidity; the front outer panel 11 is extended rearward to the pedal floor 21 to further improve the connection rigidity with the pedal floor 21; for the same reason, the rear rear panel 32 includes a rear outer panel 321 and a rear inner panel 322, which are integrally formed to form a box structure to prevent the intrusion of foreign matter splashed by the rear wheels, and are formed in a concave dome shape to ensure that they can accommodate the installation space of the rear wheels and the rear shock absorber 7.

[0028] In addition, the frame of the present invention uses reinforcing ribs and reinforcing planes inside to enhance strength and rigidity.

[0029] Of course, the mounting structure of the rear shock absorber can also be changed based on actual needs, such as setting a vertical mounting through hole on the mounting boss 3222 of the rear shock absorber, setting an upper connecting member 71 on the upper part of the rear shock absorber, setting a mounting hole 711 on the upper connecting member 71, and fixing the rear shock absorber to the mounting boss 3222 on the rear shock absorber through the upper connecting member 71.

[0030] In the above technical solution, at least the head tube 13, front outer panel 111, inner bottom panel 1121, inner support panel 1122, left reinforcement panel 1123, right reinforcement panel 1124, and front reinforcement panel 1125 of the vehicle frame are formed from a magnesium alloy or aluminum alloy through die-casting or thixotropic molding. The rear outer panel 321, rear inner panel 322, rear fork mounting boss 3221, rear shock absorber upper mounting boss 3222, storage box mounting boss 3223, and seat cushion lock mounting platform 3224 are formed from a magnesium alloy or aluminum alloy through die-casting or thixotropic molding. The remaining front rear panel 12, left middle panel 221, right middle panel 222, pedal floor 21, and rear front panel 31 can be formed from the same magnesium alloy or aluminum alloy through die-casting or thixotropic molding, or can be formed from other metal materials through casting or stamping.

[0031] Magnesium alloy or aluminum alloy is used through die casting or thixoforming, especially magnesium AM60 alloy, which has advantages as a structure due to its low specific gravity and high specific strength; and semi-solid forming has small dimensional changes during solidification, which can achieve higher product precision.

[0032] The frame is formed by connecting magnesium alloy or aluminum alloy plates through die-casting or thixoforming technology, and the original central skeleton frame is changed into a basket-type frame, and the open frame is changed into a relatively closed structure. Die-casting or semi-solid forming is adopted as needed and firmly fastened to complete the closed-section monocoque frame of the overall structure, which fundamentally innovates the traditional frame structure. The frame can support the whole body and serve as an exterior component to form a cavity to place functional parts inside the frame, greatly reducing the manufacturing process, reducing costs, reducing the painting process and VOC emissions, improving the recyclability of independent resin components, and improving fuel economy or cruising range by lightweighting.

[0033] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A novel two-wheeled vehicle comprising a frame and a rear fork, wherein the front end of the rear fork is connected to the frame, and characterized in that: The vehicle frame comprises a front structure and a rear structure, wherein the front structure comprises a front panel (11) and a head pipe (13), wherein the front panel (11) comprises a front outer panel (111) and a front inner panel (112), wherein the head pipe (13) is located on the front inner panel (112), and wherein the front outer panel (111), the front inner panel (112) and the head pipe (13) are integrally formed; wherein the rear structure comprises a rear panel (32), wherein the front end of the rear panel (32) is directly or indirectly connected to the rear end of the front panel (11); wherein the front outer panel (111), the front inner panel (112) and the head pipe (13) are integrally formed. and the rear panel (32) of the vehicle tail are made of magnesium alloy or aluminum alloy by die casting or thixoforming; the rear flat fork (6) includes a support arm, the front end of the support arm is provided with a pivot portion (62), the pivot portion (62) is provided with a transverse pivot portion mounting hole (621), the support arm includes an outer support wall (611), an inner support wall (612) and an upper support wall (613), the outer support wall (611), the inner support wall (612), the upper support wall (613) and the pivot portion (62) are integrally formed, and the cross section of the middle section of the support arm is a C-shape with the opening downward.

2. A novel two-wheeled vehicle according to claim 1, characterized in that: The rear panel (32) comprises a rear outer panel (321) and a rear inner panel (322), wherein the rear outer panel (321) and the rear inner panel (322) are integrally formed; a rear fork mounting boss (3221) matching the pivot portion (62) is provided at the lower section of the rear inner panel (322); the rear fork mounting boss (3221) is provided with a transverse fork mounting hole (32211); the front end of the rear fork (6) is hingedly fixed to the outside of the rear fork mounting boss (3221) by means of bolts passing through the fork mounting hole (32211) and the pivot portion mounting hole (621); the rear fork mounting boss (3221) and the rear inner panel (322) are both made of magnesium alloy or aluminum alloy and integrally formed by die casting or thixotropic molding.

3. A novel two-wheeled vehicle according to claim 2, characterized in that: The vehicle further comprises a rear shock absorber (7), wherein the upper section of the rear inner panel (322) is provided with a rear shock absorber upper mounting boss (3222), the upper end of the rear shock absorber (7) is mounted on the rear shock absorber upper mounting boss (3222), and the lower end of the rear shock absorber (7) is mounted on the rear section of the rear flat fork (6), and the rear shock absorber upper mounting boss (3222) and the rear inner panel (322) are both made of magnesium alloy or aluminum alloy through die casting or thixotropic molding.

4. A novel two-wheeled vehicle according to claim 1, characterized in that: The front structure further comprises a front rear panel (12), and the front rear panel (11) and the front rear panel (12) are connected to form a front cavity with an upper end opening.

5. A novel two-wheeled vehicle according to claim 1, characterized in that: The rear structure further comprises a front rear panel (31), wherein the front rear panel (31) and the rear rear panel (32) are connected to form a rear cavity with an open upper end.

6. A novel two-wheeled vehicle according to claim 1, characterized in that: The rear flat fork further comprises a crossbeam (30), the support arm comprises a left support arm (10) and a right support arm (20), the left side of the crossbeam (30) is connected to the front part of the left support arm (10), and the right side of the crossbeam (30) is connected to the front part of the right support arm (20), the crossbeam (30), the left support arm (10) and the right support arm (20) are integrally formed, the connection between the left support arm (10) and the crossbeam (30), and the connection between the right support arm (20) and the crossbeam (3) are both arranged as curved connections (301), and the inner wall of the curved connection (301) is provided with a connection truss reinforcement rib (302).

7. The novel two-wheeled vehicle according to claim 1, characterized in that: The vehicle further comprises an extended pedal structure, wherein the extended pedal structure comprises a middle side panel, wherein the middle side panel is divided into a middle left side panel (221) and a middle right side panel (222), wherein the front ends of the middle left side panel (221) and the middle right side panel (222) are connected to the rear end of the front panel (11), and the rear ends of the middle left side panel (221) and the middle right side panel (222) are connected to the front end of the rear panel (32), and the middle left side panel (221) and the middle right side panel (222) are both made of magnesium alloy or aluminum alloy by die casting or thixoforming.

8. A novel two-wheeled vehicle according to claim 7, characterized in that: The extended pedal portion structure further comprises a pedal floor (21), and the middle left side plate (221) and the middle right side plate (222) are integrally formed with or fixedly connected to the pedal floor (21).

9. The novel two-wheeled vehicle according to claim 1, characterized in that: The front inner panel (112) comprises an inner bottom panel (1121) at the bottom and an inner support panel (1122) at the top, wherein the inner bottom panel is concave inwardly toward the rear of the two-wheeled vehicle to form a curved surface, and the inner support panel (1122) is located above the inner bottom panel and vertically connected to the head pipe (13); a left reinforcing plate (1123) and a right reinforcing plate (1124) are provided on the side of the head pipe (13) in a vertical direction, and a front reinforcing plate (1125) is provided in front of the head pipe (13); the front reinforcing plate (1125), the left reinforcing plate (1123), the right reinforcing plate (1124) and the head pipe (13) are made of magnesium alloy or aluminum alloy through die casting or thixotropic molding.

10. The novel two-wheeled vehicle according to claim 5, characterized in that: The vehicle further comprises a seat cushion structure (4), wherein a storage box (5) is provided in the rear cavity, a storage box mounting boss (3223) matching the bottom of the storage box (5) is provided in the middle section of the rear inner panel (32), a storage box mounting boss through hole (32231) is provided on the storage box mounting boss (3223), a storage box mounting hole is provided at a corresponding position of the bottom of the storage box, and the storage box (5) is fixed to the rear inner panel (32) by bolts passing through the storage box mounting hole and the storage box mounting boss through hole (32231); the seat cushion structure (4) comprises a seat cushion body (41), a front mounting bracket (42), a rear lock bracket (43) and a seat cushion lock (44), wherein the front end of the seat cushion body (41) is fixedly mounted with the front mounting bracket (42), and the lower portion of the rear end of the seat cushion body (41) is fixedly mounted with the rear lock bracket (43). The rear lock bracket (43) is fixedly installed, and the front mounting bracket (42) is hinged at the upper part of the front end of the storage box (5); a seat cushion lock mounting platform (3224) is further provided at the middle position of the upper section of the rear inner panel (322), and the seat cushion lock (44) is fixedly installed on the seat cushion lock mounting platform (3224); a rear lock bracket through hole (52) is provided on the rear side of the storage box (5); when the seat cushion is in a locked state, the rear lock bracket (43) passes through the rear lock bracket through hole (52) and is locked on the seat cushion lock (44); the seat cushion body (41) is supported on the storage box (5), the rear front panel (31) and the rear rear panel (32); and the seat cushion body (41) tightly covers the upper part of the rear cavity surrounded by the storage box (5) and the rear front panel (31) and the rear rear panel (32).

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