Electric vehicle with adjustable rear wheel structure

Abstract

The utility model discloses an electric vehicle with an adjustable rear wheel structure, which comprises a vehicle frame, a frame module forming an adjustable rear wheel frame, a damping module used for forming a follow-up damping structure and a supporting module used for forming an auxiliary supporting structure, and the two ends of the vehicle frame are respectively a head end and a tail end. The frame module is arranged on the lower portion of the tail end of the frame, the damping module is assembled between the frame module and the middle of the frame, and the supporting module is arranged between the frame module and the tail end of the frame. The installation width and the installation angle of the rear wheel part can be flexibly adjusted according to the driving requirement of a driver, the damping module is arranged, damping connection between the frame module and the frame can be achieved, the damping performance of the electric vehicle is effectively improved, the supporting module is arranged, and the frame module and the tail end of the frame can be installed and supported; and the connection stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, and in particular to an electric vehicle with an adjustable rear wheel structure. Background Technology

[0002] In the current technology, with the increasing severity of environmental pollution and the continuous improvement of people's environmental awareness, low-carbon and green lifestyles are gradually becoming the mainstream. Two-wheeled electric vehicles, with their convenience and labor-saving features, are increasingly becoming an important means of transportation. Simply put, an electric vehicle is a vehicle powered by electricity. Two-wheeled electric vehicles include electric motorcycles and electric bicycles. Compared to bicycles driven by human pedaling, two-wheeled electric vehicles are faster and easier to operate, making them more popular with users. With the popularization of two-wheeled electric vehicles, their overall structural design and transmission system have also developed significantly. The rear swingarm, as one of the main components of an electric vehicle, is located at the bottom and is used to fix the rear wheel. However, in the current technology, the fork's position is not adjustable. This makes the drive chain prone to loosening over long-term use, causing it to detach from the drive wheel and affecting normal driving. Furthermore, it cannot be flexibly adjusted according to the driver's driving needs, resulting in poor driving performance and failing to meet the driver's modification requirements.

[0003] Chinese utility model patent application number 201820673014.3 discloses an adjustment structure for the rear wheel of a two-wheeled electric vehicle. It includes a rear wheel swingarm bracket, a rear drive wheel connected to the swingarm bracket via a connecting shaft, a horizontally shaped adjustment groove on the swingarm bracket, a square guide block within the groove, a slotted hole at the bottom of the groove, a connecting shaft passing through the slotted hole with its end fixed to the square guide block, and another slotted groove on the swingarm bracket with a slotted channel at the bottom. An adjustment nut is fixedly mounted at the bottom of the slot, and an adjustment bolt, spirally inserted in the adjustment nut, is located between the adjustment nut and the square guide block, with the head of the adjustment bolt abutting against the outer wall of the square guide block. However, while the fore-and-aft position of this electric vehicle's rear wheel adjustment structure is adjustable, its installation width and angle are fixed, preventing flexible adjustment according to the driver's driving needs. This results in poor driving performance of the electric vehicle and fails to meet the driver's modification requirements. Summary of the Invention

[0004] The purpose of this invention is to provide an electric vehicle with an adjustable rear wheel structure.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows:

[0006] An electric vehicle with an adjustable rear wheel structure includes a frame, with the two ends of the frame being a front end and a rear end, and also includes a frame module constituting an adjustable rear wheel frame, a shock-absorbing module constituting a follow-up shock-absorbing structure, and a support module constituting an auxiliary support structure. The frame module is arranged at the lower part of the rear end of the frame, the shock-absorbing module is assembled between the frame module and the middle part of the frame, and the support module is disposed between the frame module and the rear end of the frame.

[0007] The frame module includes a rear wheel frame, frame inserts, and mounting screws. Two sets of rear wheel frames are symmetrically positioned at the lower rear end of the vehicle frame, with one end fixedly connected to the frame via a connecting screw. The two sets of rear wheel frames are assembled together. Several frame inserts are provided, each positioned at a connection node of one set of rear wheel frames and fixedly connected to the corresponding rear wheel frame. The frame inserts are arranged on the side of one set of rear wheel frames closer to the other set and are inserted into the other set of rear wheel frames. Several mounting screws are provided corresponding to the frame inserts, positioned at the insertion points of the frame inserts and the other set of rear wheel frames, and threaded through the rear wheel frame. The mounting screws abut against the corresponding frame inserts.

[0008] The rear wheel frame adopts a bifurcated assembly frame structure. The two sets of rear wheel frames are assembled and connected by the frame insert rod and the mounting screw to form an assembly frame.

[0009] The shock absorption module includes a shock absorption mounting bracket, a shock absorption hydraulic rod, and a shock absorption spring. The shock absorption mounting bracket is located on the lower inner side of the assembled frame and is fixedly connected to the assembled frame. The shock absorption hydraulic rod is located between the shock absorption mounting bracket and the vehicle frame, and its two ends are rotatably connected to the shock absorption mounting bracket and the vehicle frame respectively through rotating shafts. The shock absorption hydraulic rod is arranged at an angle. The shock absorption spring is sleeved on the outside of the shock absorption hydraulic rod and is fixedly connected to the output end of the shock absorption hydraulic rod and the rod body. The shock absorption spring and the shock absorption hydraulic rod together constitute a composite shock absorber.

[0010] The support module includes a support mounting base and a support hydraulic rod. The support mounting base is located at the bottom of the rear end of the vehicle frame and is fixedly connected to the vehicle frame. The support hydraulic rod is located between the support mounting base and the assembled frame, and its two ends are rotatably connected to the support mounting base and the assembled frame respectively through a rotating shaft. The support hydraulic rod is arranged at an angle.

[0011] It also includes a front fork module, which includes a wheel fork and a handlebar. The wheel fork is located at the front end of the frame and is rotatably connected to the frame. The handlebar is located at the upper end of the wheel fork and is fixedly connected to the wheel fork.

[0012] It also includes a wheelset module, which includes a front wheel body and a rear wheel body. The front wheel body is located at the lower part of the front fork and is rotatably connected to the front fork via a pivot. The rear wheel body is located at the end of the assembled frame away from the frame and is rotatably connected to the assembled frame via a pivot.

[0013] It also includes mudguards, which are provided in two sets. The two sets of mudguards are respectively disposed on the inner side of the wheel fork and the assembled frame, corresponding to the front wheel body and the rear wheel body, and the two sets of mudguards are respectively located above the front wheel body and the rear wheel body.

[0014] It also includes a headlight, which is located at the front end of the frame corresponding to the wheel fork and is fixedly connected to the frame.

[0015] It also includes a seat, which is located on the upper part of the frame and fixedly connected to the frame. The frame adopts a hollow frame structure and is equipped with a battery and a motor inside. The battery and the motor are electrically connected. The output end of the motor is connected to the rear wheel body through a transmission sprocket and a transmission chain.

[0016] The beneficial effects of this utility model are:

[0017] It features a frame module with an adjustable rear wheel frame structure. The installation width and angle of the rear wheel section can be flexibly adjusted according to the driver's driving needs, meeting the driver's modification requirements and effectively improving the electric vehicle's driving performance. It also includes a shock absorption module, which enables shock absorption connection between the frame module and the frame, effectively improving the electric vehicle's shock absorption performance. Furthermore, it has a support module, which provides installation support for the frame module and the rear end of the frame, ensuring the stability of their connection. This module, together with the shock absorption module, forms a dual shock absorption structure, further enhancing the electric vehicle's shock absorption effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the frame module structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the cooperation between the support module of this utility model and the vehicle frame.

[0021] In the diagram: 1. Frame; 2. Rear wheel frame; 3. Frame insert rod; 4. Mounting screw; 5. Shock absorber mounting bracket; 6. Shock absorber hydraulic rod; 7. Shock absorber spring; 8. Support mounting seat; 9. Support hydraulic rod; 10. Front wheel fork; 11. Handlebar; 12. Front wheel body; 13. Rear wheel body; 14. Mudguard; 15. Headlight; 16. Seat. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] An electric vehicle with an adjustable rear wheel structure includes a frame 1, with the two ends of the frame 1 being the front end and the rear end, respectively. It also includes a frame module forming the adjustable rear wheel frame 2, a shock-absorbing module forming a follow-up shock-absorbing structure, and a support module forming an auxiliary support structure. The frame module is located at the lower rear end of the frame 1, the shock-absorbing module is assembled between the frame module and the middle of the frame 1, and the support module is disposed between the frame module and the rear end of the frame 1. A schematic diagram of the overall structure of this utility model is shown below. Figure 1 As shown.

[0024] The frame module includes a rear wheel frame 2, frame inserts 3, and mounting screws 4. Two sets of rear wheel frames 2 are symmetrically positioned at the lower rear end of the frame 1, with one end fixedly connected to the frame 1 via connecting screws. The two sets of rear wheel frames 2 are assembled and connected relative to each other. Several frame inserts 3 are provided, each positioned at a connection node of one set of rear wheel frames 2 and fixedly connected to the corresponding rear wheel frame 2. The frame inserts 3 are located on the side of one set of rear wheel frames 2 closest to the other set and are inserted into the other set of rear wheel frames 2. Several mounting screws 4 are provided corresponding to the frame inserts 3, positioned at the insertion points of the frame inserts 3 and the other set of rear wheel frames 2, and threaded through the rear wheel frames 2. The mounting screws 4 abut against the corresponding frame inserts 3. The rear wheel frame 2 adopts a bifurcated assembly frame structure, with the two sets of rear wheel frames 2 connected by a frame... The frame module is assembled and connected with the frame insert rod 3 and the mounting screw 4 to form a modular frame. The frame module, through the cooperation of the rear wheel frame 2, frame insert rod 3, and mounting screw 4, forms an adjustable modular frame structure. The rear wheel frame 2 provides mounting support for the frame insert rod 3 and the mounting screw 4. The frame insert rod 3 is used to insert two sets of rear wheel frames 2 to form the modular frame structure. The distance between the two sets of rear wheel frames 2 can be adjusted by adjusting the insertion length between the frame insert rod 3 and the corresponding rear wheel frame 2, thereby adjusting the width of the modular frame structure to meet the installation requirements of rear wheels of different widths. The mounting screw 4 is used to fix the frame insert rod 3 to the corresponding rear wheel frame 2. Tightening the mounting screw 4 to make it abut against the corresponding frame insert rod 3 achieves a fixed connection between the two sets of rear wheel frames 2, thereby fixing the width of the modular frame structure. A schematic diagram of the frame module structure of this utility model is shown below. Figure 2 As shown.

[0025] The shock absorption module includes a shock absorption mounting bracket 5, a shock absorption hydraulic rod 6, and a shock absorption spring 7. The shock absorption mounting bracket 5 is located on the lower inner side of the assembled frame and is fixedly connected to the assembled frame. The shock absorption hydraulic rod 6 is located between the shock absorption mounting bracket 5 and the vehicle frame 1, and its two ends are rotatably connected to the shock absorption mounting bracket 5 and the vehicle frame 1 respectively via rotating shafts. The shock absorption hydraulic rod 6 is arranged at an angle. The shock absorption spring 7 is sleeved on the outside of the shock absorption hydraulic rod 6 and is fixedly connected to the output end and the rod body of the shock absorption hydraulic rod 6. The shock absorption spring 7 and the shock absorption hydraulic rod... The six components together form a composite shock absorber. The shock absorber module works in conjunction with the shock absorber mounting bracket 5, the shock absorber hydraulic rod 6, and the shock absorber spring 7 to serve as the shock absorber structure of the electric vehicle and improve its shock absorber performance. The shock absorber mounting bracket 5 serves as the mounting structure on the assembled frame, thereby providing mounting support for the shock absorber hydraulic rod 6. The shock absorber hydraulic rod 6 is used to connect the assembled frame to the vehicle frame 1 for shock absorption. The shock absorber spring 7, together with the shock absorber hydraulic rod 6, forms a shock absorber as the shock absorber structure of the electric vehicle to improve its shock absorber performance.

[0026] The support module includes a support mounting base 8 and a support hydraulic rod 9. The support mounting base 8 is located at the bottom of the rear end of the frame 1 and is fixedly connected to the frame 1. The support hydraulic rod 9 is located between the support mounting base 8 and the assembled frame, and its two ends are rotatably connected to the support mounting base 8 and the assembled frame respectively via pivots. The support hydraulic rod 9 is arranged at an angle. The support module, through the cooperation of the support mounting base 8 and the support hydraulic rod 9, forms an auxiliary support structure between the assembled frame and the frame 1 to improve the stability of the electric vehicle. The support mounting base 8 is used to realize the installation connection between the support hydraulic rod 9 and the frame 1. The support hydraulic rod 9 forms an auxiliary support structure between the assembled frame and the frame 1 to improve the stability of the electric vehicle. Furthermore, the support hydraulic rod 9 can form a dual shock absorption structure with the shock absorption module to improve the shock absorption effect of the electric vehicle. A schematic diagram of the cooperation between the support module and the frame 1 is shown below. Figure 3 As shown.

[0027] It also includes a front fork module, which includes a wheel fork 10 and a handlebar 11. The wheel fork 10 is located at the front end of the frame 1 and is rotatably connected to the frame 1. The handlebar 11 is located at the upper end of the wheel fork 10 and is fixedly connected to the wheel fork 10. The front fork module, together with the wheel fork 10 and the handlebar 11, forms the front fork structure of the electric vehicle. The wheel fork 10 is used to form the front fork structure of the electric vehicle to meet the installation requirements of the front wheel. The handlebar 11 is used to control the orientation of the front fork, thereby controlling the direction of travel of the electric vehicle.

[0028] It also includes a wheelset module, which includes a front wheel body 12 and a rear wheel body 13. The front wheel body 12 is located at the lower part of the front fork 10 and is rotatably connected to the front fork 10 via a pivot. The rear wheel body 13 is located at the end of the assembled frame away from the frame 1 and is rotatably connected to the assembled frame via a pivot. The wheelset module, through the cooperation of the front wheel body 12 and the rear wheel body 13, constitutes the wheelset structure of the electric vehicle to meet the riding requirements of the electric vehicle. The front wheel body 12 is used to constitute the front wheel structure of the electric vehicle, and the rear wheel body 13 is used to constitute the rear wheel structure of the electric vehicle.

[0029] It also includes mudguards 14, which are provided in two sets. The two sets of mudguards 14 are respectively installed on the inner side of the front wheel body 12 and the rear wheel body 13. The two sets of mudguards 14 are located above the front wheel body 12 and the rear wheel body 13. The mudguards 14 are used to cover the mud thrown out by the front wheel body 12 and the rear wheel body 13 during the movement.

[0030] It also includes a headlight 15, which is located at the front end of the frame 1 and fixedly connected to the frame 1, corresponding to the front fork 10 of the wheel. The headlight 15 is used as the headlight structure of the electric vehicle to meet the driver's lighting needs.

[0031] It also includes a seat 16, which is located on the upper part of the frame 1 and fixedly connected to the frame 1. The frame 1 adopts a hollow frame structure and is equipped with a battery and a motor inside. The battery and the motor are electrically connected. The output end of the motor is connected to the rear wheel body 13 through a transmission sprocket and a transmission chain. The seat 16 is used to meet the riding needs of the driver, the battery is used to power the motor, and the motor is used to drive the rear wheel to rotate through the transmission sprocket and transmission chain under the action of the battery, thereby meeting the travel needs of the electric vehicle.

[0032] The assembled frame and the chassis 1 are spaced apart to accommodate the width adjustment of the assembled frame.

[0033] Working principle:

[0034] The rear wheel body 13 is assembled at the rear end of the electric vehicle via a modular frame. The width of the modular frame can be adjusted according to the width of the rear wheel body 13 to mount the rear wheel body 13 onto the frame 1. The mounting angle between the modular frame and the frame 1 can also be adjusted. During adjustment, the length and mounting angle of the shock-absorbing hydraulic rod 6 and the support hydraulic rod 9 can be adjusted along with the mounting angle of the modular frame to meet the driver's modification needs. During riding, the support module and the shock-absorbing module together form a dual shock-absorbing structure, effectively improving the shock absorption effect and support stability of the electric vehicle and optimizing the riding experience.

[0035] The beneficial effects of this utility model are as follows: It includes a frame module with an adjustable rear wheel frame structure, allowing for flexible adjustment of the rear wheel's installation width and angle according to the driver's driving needs, thus meeting the driver's modification requirements and effectively improving the electric vehicle's driving performance. It also includes a shock-absorbing module, enabling shock-absorbing connection between the frame module and the frame, effectively improving the electric vehicle's shock absorption performance. Furthermore, it includes a support module, providing installation support for the frame module and the rear end of the frame, ensuring the stability of their connection, and forming a dual shock-absorbing structure with the shock-absorbing module, further enhancing the electric vehicle's shock absorption effect.

[0036] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. An electric vehicle with an adjustable rear wheel structure, comprising a frame (1), wherein the two ends of the frame (1) are a front end and a rear end, characterized in that, It also includes a frame module that forms an adjustable rear wheel frame (2), a damping module that forms a follow-up damping structure, and a support module that forms an auxiliary support structure. The frame module is arranged at the lower rear end of the vehicle frame (1), the damping module is assembled between the frame module and the middle of the vehicle frame (1), and the support module is arranged between the frame module and the rear end of the vehicle frame (1).

2. An electric vehicle with an adjustable rear wheel structure as described in claim 1, characterized in that, The frame module includes a rear wheel frame (2), frame inserts (3), and mounting screws (4). The rear wheel frame (2) is provided in two sets. The two sets of rear wheel frames (2) are symmetrically arranged at the lower rear end of the frame (1), and one end of each set is fixedly connected to the frame (1) by a connecting screw. The two sets of rear wheel frames (2) are assembled and connected relative to each other. The frame inserts (3) are provided in several units. Each set of frame inserts (3) is respectively located at the connection node of one set of rear wheel frames (2) and is fixedly connected to the corresponding rear wheel frame (2). The frame insert (3) is arranged on one side of one set of rear wheel frames (2) near another set of rear wheel frames (2) and is inserted into the other set of rear wheel frames (2). The mounting screw (4) is provided for several frame inserts (3). Several mounting screws (4) are provided at the insertion point of the frame insert (3) and the other set of rear wheel frames (2) and are threaded through the rear wheel frames (2). The mounting screw (4) abuts against the corresponding frame insert (3).

3. An electric vehicle with an adjustable rear wheel structure as described in claim 2, characterized in that, The rear wheel frame (2) adopts a bifurcated assembly frame structure. The two sets of rear wheel frames (2) are assembled and connected by the frame insert (3) and the mounting screw (4) to form an assembly frame.

4. An electric vehicle with an adjustable rear wheel structure as described in claim 3, characterized in that, The shock absorption module includes a shock absorption mounting bracket (5), a shock absorption hydraulic rod (6), and a shock absorption spring (7). The shock absorption mounting bracket (5) is located on the lower inner side of the assembled frame and is fixedly connected to the assembled frame. The shock absorption hydraulic rod (6) is located between the shock absorption mounting bracket (5) and the vehicle frame (1), and its two ends are rotatably connected to the shock absorption mounting bracket (5) and the vehicle frame (1) respectively through a rotating shaft. The shock absorption hydraulic rod (6) is arranged at an angle. The shock absorption spring (7) is sleeved on the outside of the shock absorption hydraulic rod (6) and is fixedly connected to the output end of the shock absorption hydraulic rod (6) and the rod body. The shock absorption spring (7) and the shock absorption hydraulic rod (6) together constitute a composite shock absorber.

5. An electric vehicle with an adjustable rear wheel structure as described in claim 4, characterized in that, The support module includes a support mounting base (8) and a support hydraulic rod (9). The support mounting base (8) is located at the bottom of the rear end of the vehicle frame (1) and is fixedly connected to the vehicle frame (1). The support hydraulic rod (9) is located between the support mounting base (8) and the assembled frame, and its two ends are rotatably connected to the support mounting base (8) and the assembled frame respectively through a rotating shaft. The support hydraulic rod (9) is arranged at an angle.

6. An electric vehicle with an adjustable rear wheel structure as described in claim 5, characterized in that, It also includes a front fork module, which includes a wheel fork (10) and a handlebar (11). The wheel fork (10) is located at the front end of the frame (1) and is rotatably connected to the frame (1). The handlebar (11) is located at the upper end of the wheel fork (10) and is fixedly connected to the wheel fork (10).

7. An electric vehicle with an adjustable rear wheel structure as described in claim 6, characterized in that, It also includes a wheelset module, which includes a front wheel body (12) and a rear wheel body (13). The front wheel body (12) is located at the lower part of the front fork (10) and is rotatably connected to the front fork (10) via a pivot. The rear wheel body (13) is located at the end of the assembled frame away from the frame (1) and is rotatably connected to the assembled frame via a pivot.

8. An electric vehicle with an adjustable rear wheel structure as described in claim 7, characterized in that, It also includes mudguards (14), which are provided in two sets. The two sets of mudguards (14) are respectively disposed on the inner side of the front wheel body (12) and the rear wheel body (13) of the wheel fork (10) and the assembled frame, and the two sets of mudguards (14) are respectively located above the front wheel body (12) and the rear wheel body (13).

9. An electric vehicle with an adjustable rear wheel structure as described in claim 8, characterized in that, It also includes a headlight (15), which is located at the front end of the frame (1) corresponding to the wheel fork (10) and is fixedly connected to the frame (1).

10. An electric vehicle with an adjustable rear wheel structure as described in claim 9, characterized in that, It also includes a seat (16), which is located on the upper part of the frame (1) and fixedly connected to the frame (1). The frame (1) adopts a hollow frame structure and is equipped with a battery and a motor inside. The battery and the motor are electrically connected. The output end of the motor is connected to the rear wheel body (13) through a transmission sprocket and a transmission chain.

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