electric bicycle

Abstract

This utility model relates to the field of electric-assisted bicycle technology and discloses an electric-assisted bicycle, including a bicycle body. The bicycle body includes a frame body, a handlebar assembly, a tail assembly, a seat assembly, and front and rear wheel assemblies. The handlebar assembly is rotatably mounted on top of one end of the frame body, and the tail assembly is located on top of the other end of the frame body. A battery cover assembly is provided at the upper end of the frame body, and the seat assembly is mounted on top of the battery cover assembly. Through the cooperation between the handlebar assembly, front and rear wheel assemblies, battery compartment, and frame body, the depth and width of the battery compartment are widened, increasing the adaptability for installing batteries of different specifications. The layout is reasonable, ensuring the stability of the vehicle's center of gravity and improving driving safety. At the same time, the handlebar assembly is easy to adjust the usage angle, and the cable tray on the outside of the first tube can effectively bundle the cable, making the vehicle appearance cleaner and reducing the risk of cable wear.

Description

Technical Field

[0001] This utility model relates to the field of electric-assisted bicycle technology, specifically electric-assisted bicycles. Background Technology

[0002] Electric-assisted bicycles are mechatronic vehicles that use batteries as auxiliary power and are based on ordinary small cars. They are equipped with motors, controllers, batteries, throttles, brake levers and other operating components and display instrument systems. The batteries must be charged before use.

[0003] In the prior art, Chinese utility model application number CN202021450838.8 discloses an electric-assisted bicycle, including a front frame, a base frame, and a frame main tube. The base frame is located on one side of the front frame, and the frame main tube is installed between the front frame and the base frame. By installing the battery and controller inside the frame main tube, and then sealing the opening of the inner hole of the frame main tube with a taillight, the service life of the battery and controller is improved. In addition, the upper and lower middle tubes are welded to the frame main tube as a whole, and a bushing is inserted between the upper and lower middle tubes to separate the inner hole into a cable routing cavity. After the battery and controller are installed inside the frame main tube, the wires can be routed through the cable routing cavity, avoiding the wear of the wires when the seat post is adjusted, thus improving the service life of the wires. This solves the problem that traditional electric-assisted bicycles generally install the battery behind the middle tube, which leads to a reduction in battery life.

[0004] The demand for electric-assisted bicycles in existing technologies is constantly increasing, but problems still exist. The entire technical solution does not take into account the universality and scalability of the vehicle. The structure may not be compatible with batteries and controllers of different sizes, which limits the range of choices when upgrading or replacing parts. Therefore, we need to propose an electric-assisted bicycle. Utility Model Content

[0005] The purpose of this utility model is to provide an electric-assisted bicycle that optimizes the specifications of the battery installation compartment, making it suitable for the installation and use of batteries of different specifications, improving the vehicle's versatility and expandability, making the overall appearance cleaner and more beautiful, and improving the overall portability of the vehicle, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric-assisted bicycle, including a bicycle body, the bicycle body including a frame body, a handlebar assembly, a tail assembly, a seat assembly, and front and rear wheel assemblies, the handlebar assembly and the tail assembly being respectively fastened to both ends of the frame body by fastening bolts, the handlebar assembly controlling the movement direction of the bicycle body, and the tail assembly controlling the electrical movement of the bicycle body and the front and rear wheel assemblies;

[0007] It also includes a battery compartment located inside the frame body for battery installation. The depth and width of the battery compartment are widened to allow for the assembly of batteries of different specifications. A front swingarm assembly for fastening the steering wheel assembly is provided at one end of the frame body.

[0008] Preferably, the faucet assembly includes a folding T-handle and a No. 1 tube. The lower end of the folding T-handle is inserted into the upper end of the No. 1 tube. The upper end of the No. 1 tube is provided with an aluminum alloy front clamp for fastening the folding T-handle. The outer side of the No. 1 tube is detachably provided with a cable-tightening groove for cable bundling.

[0009] Preferably, the head assembly further includes a head folding assembly installed at one end of the frame body, the lower end of the first tube is inserted into the upper end of the head folding assembly, the lower end of the first tube is provided with an aluminum alloy protective clip for fastening the head folding assembly, one end of the frame body is provided with a tube bearing for rotating the front swingarm assembly, one end of the front swingarm assembly is provided with an LED light, and the other end of the frame body (18) is provided with a rear support handle.

[0010] Preferably, the tail assembly includes a controller base box installed at the other end of the frame body, a controller box cover is provided at the upper end of the controller base box, a taillight is provided on one side of the controller base box, a rear flap cover is installed on the lower surface of the controller base box, and a foot support assembly is provided on one side of the frame body.

[0011] Preferably, the front and rear wheel assembly includes front hydraulic shock absorbers mounted on both sides of the front swingarm assembly, a front wheel mounted on the lower end of the front hydraulic shock absorber, a front bearing cap mounted on the lower end of the front swingarm assembly above the front wheel, a front disc mounted on the lower end of the front hydraulic shock absorber, and a front hydraulic brake mounted on the front disc.

[0012] Preferably, the front and rear wheel assembly further includes a rear fork mounted below the other end of the vehicle body. The rear fork is equipped with a rear disc brake and a high-speed motor. The rear disc brake is equipped with a rear hydraulic brake and a rear sub-brake. The rear fork is provided with a rear wheel body. Two sets of shock absorber springs are provided between the rear fork and the main frame body.

[0013] Preferably, the seat assembly includes a seat cushion and a seat tube, a battery cover assembly for mounting the seat tube is provided above the battery compartment, the seat tube is mounted on the upper end of the battery cover assembly, the seat cushion is inserted into the upper end of the seat tube, and a fastener for securing the seat cushion is provided on the upper end of the seat tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model mainly improves the compatibility of different battery specifications by widening the depth and width of the battery compartment through the cooperation between the steering wheel assembly, front and rear wheel assemblies, battery compartment and frame body. The layout is reasonable, ensuring the stability of the vehicle's center of gravity and improving driving safety. At the same time, the steering wheel assembly is easy to adjust the usage angle, and the cable tray on the outside of the No. 1 tube can effectively bundle the cables, making the vehicle appearance cleaner and reducing the risk of cable wear.

[0016] 2. This utility model effectively buffers road bumps and improves riding comfort through the cooperation between the front hydraulic shock absorber and the shock absorber spring. The configuration of the front disc, front hydraulic brake and rear disc, and rear hydraulic brake ensures good braking performance of the electric bicycle body and can ensure timely braking during the ride. The controller box and cover design of the tail assembly protects the controller and facilitates maintenance. The taillight can alert vehicles behind at night and improve driving safety. The rear and front flap covers can prevent mud and water from splashing and keep the vehicle clean. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall side view structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall front structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the explosion structure of the electric bicycle of this utility model.

[0020] In the diagram: 1. Folding T-handlebars; 2. No. 1 tube; 3. Seat; 4. Rear support handle; 5. Seat tube; 6. Battery cover assembly; 7. Controller box cover; 8. Controller base box; 9. Taillight; 10. Rear hydraulic brake; 11. High-speed motor; 12. Rear disc brake; 13. Rear sub; 14. Rear fork; 15. Kickstand assembly; 16. Shock absorber spring; 17. Front hydraulic brake; 18. Frame body; 19. Front disc brake; 20. Front wheel cap; 21. LED light; 22. Front wheel; 23. Front swingarm assembly; 24. Aluminum alloy front clamp; 25. Aluminum alloy clamp protector; 26. Tube bearing; 27. Folding stem assembly; 28. Front hydraulic shock absorber; 29. ​​Battery compartment; 30. Rear wheel body; 31. Rear wheel cap. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution: an electric-assisted bicycle, including a bicycle body, the bicycle body including a frame body 18, a handlebar assembly, a tail assembly, a seat assembly and front and rear wheel assemblies, the handlebar assembly and the tail assembly are respectively locked and installed at both ends of the frame body 18 by fastening bolts, the handlebar assembly realizes the control of the movement direction of the bicycle body, and the tail assembly realizes the electrical control of the bicycle body and the front and rear wheel assemblies;

[0023] It also includes a battery compartment 29 located inside the frame body 18 for battery installation. The depth and width of the battery compartment 29 are widened to allow for the assembly of batteries of different specifications. One end of the frame body 18 is provided with a front flat fork assembly 23 for fastening the handlebar assembly. Both ends of the frame body 18 are provided with bent tubes. The bent tubes can increase the overall weight capacity of the vehicle and further improve the aesthetics of the vehicle. The bent tubes on both sides of the frame body 18 can increase the strength of the frame body 18 and also provide foot support.

[0024] The handlebar assembly includes a folding T-handle 1 and a tube 2. The lower end of the folding T-handle 1 is inserted into the upper end of the tube 2. The upper end of the tube 2 is equipped with an aluminum alloy front clamp 24 for fastening the folding T-handle 1. A cable management channel is detachably installed on the outside of the tube 2 to store the brake cable, which improves aesthetics. It should be noted that the cross-sectional shape of the cable management channel can be square, round, or polygonal, and it is easy to disassemble and maintain, improving practicality. The folding T-handle 1 can be adjusted in length to accommodate users of different heights. The folding T-handle 1 can be flipped through the handlebar folding assembly 27. After flipping, the folding T-handle 1 can be quickly fastened using an internal M16 bolt, thereby improving the stability of the folding T-handle 1 after folding and increasing the safety factor when using the electric bicycle.

[0025] The handlebar assembly also includes a handlebar folding assembly 27 installed at one end of the frame body 18. The lower end of tube 2 is inserted into the upper end of the handlebar folding assembly 27. The lower end of tube 2 is provided with an aluminum alloy retainer 25 for fastening the handlebar folding assembly 27. One end of the frame body 18 is provided with a tubular bearing 26 for rotating the front swingarm assembly 23. One end of the front swingarm assembly 23 is provided with an LED light 21. The other end of the frame body 18 is provided with a rear support handle 4. The aluminum alloy retainer facilitates the fastening and installation of tube 2, improving the efficiency of tube 2 assembly and disassembly. The front swingarm assembly 23 and the rear support handle 4 improve the ease of moving the electric bicycle body. Since the electric bicycle body is relatively heavy, the front support handle and the rear support handle 4 on the front swingarm assembly 23 facilitate the handling of the electric bicycle body, playing a very good role in saving effort. The bent tube on the frame body 18 has the same function as the rear support handle 4, increasing the grip range and further improving the efficiency of moving the electric bicycle body.

[0026] The tail assembly includes a controller box 8 installed at the other end of the frame body 18. The controller box 8 has a controller box cover 7 on its upper end and a taillight 9 on one side. The controller box 8 has a rear cover 31 installed on its lower surface. The frame body 18 has a foot support assembly 15 on one side. The foot support assembly 15 facilitates parking the stationary electric bicycle. The rear cover 31 can prevent mud and water from splashing and contaminating the electric bicycle. The controller box cover 7 is used to protect the internal controller. The taillight 9 has a flashing light to increase the warning effect to those behind when braking.

[0027] The front and rear wheel assemblies include front hydraulic shock absorbers 28 mounted on both sides of the front swingarm assembly 23. A front wheel 22 is mounted on the lower end of the front hydraulic shock absorber 28. A front saddle cover 20 mounted on the lower end of the front swingarm assembly 23 is located above the front wheel 22. A front disc 19 is also located at the lower end of the front hydraulic shock absorber 28. A front hydraulic brake 17 is mounted on the front disc 19. The front hydraulic brake 17 can brake the front disc 19, which is used to brake the electric bicycle body when riding at low speeds, thereby improving riding safety. At the same time, the front saddle cover 20 can prevent mud and water from splashing during riding. The front hydraulic shock absorber 28 is a hydraulic shock absorber with strong elasticity, which improves the riding comfort of the electric bicycle body and has a long service life, thereby improving the riding safety factor.

[0028] The front and rear wheel assembly also includes a rear fork 14 mounted below the other end of the frame body 18. A rear disc 12 and a high-speed motor 11 are mounted on the rear fork 14. A rear hydraulic brake 10 and a rear sub-brake 13 are mounted on the rear disc 12. A rear wheel body 30 is mounted on the rear fork 14. Two sets of shock absorber springs 16 are provided between the rear fork 14 and the frame body 18. The high-speed motor 11 drives the rear wheel body 30 to rotate, thereby facilitating the driving of the electric bicycle body. Under the action of the hydraulic brake, the rear disc 12 can be braked in an emergency, thereby braking the electric bicycle body in an emergency.

[0029] The seat assembly includes a seat cushion 3 and a seat tube 5. A battery cover assembly 6 is provided above the battery compartment 29 for mounting the seat tube 5. The seat tube 5 is installed on the upper end of the battery cover assembly 6. The seat cushion 3 is inserted into the upper end of the seat tube 5. The upper end of the seat tube 5 is provided with fasteners for securing the seat cushion 3. The height of the seat cushion 3 can be easily adjusted using the fasteners (not shown in the figure), thereby increasing the driver's riding comfort. The optimized seat assembly reduces the vehicle weight. At the same time, the insert at the bottom of the seat cushion 3 can be stored inside the seat tube 5 and can be fixed by the locking piece at the upper end of the seat tube 5, improving the storage and unfolding efficiency of the seat cushion 3. The seat tube 5 is installed on the battery cover assembly 6 by a solid pin, which improves the overall installation stability and thus increases the service life of the seat assembly.

[0030] When riding, the high-speed motor 11 of the electric bicycle body is powered on, and the high-speed motor 11 generates torque. The high-speed motor torque is transmitted to the rear wheel body 30, driving the rear wheel body 30 to rotate, thereby driving the electric bicycle body forward. When the rider holds the folding T handle of the handlebar assembly and rotates the folding T handle, the first tube 2 rotates accordingly. The lower end of the first tube 2 is inserted into the handlebar folding assembly 27 and connected to the frame body 18 through the tube bearing 26. It can rotate flexibly. The rotating first tube 2 drives the front swingarm assembly 23 to rotate, thereby turning the front wheel 22 mounted on the front swingarm assembly 23 and realizing the steering control of the vehicle.

[0031] When braking is required, the rider operates the front hydraulic brake 17 and the rear hydraulic brake 10. The front hydraulic brake 17 acts on the front disc 19, and the rear hydraulic brake 10 acts on the rear disc 12. When braking, the front disc 19 or the rear disc 12 decelerates, thereby stopping the front wheel 22 or the rear wheel body 30 from rotating, thus achieving vehicle braking and ensuring driving safety. During vehicle operation, road bumps will generate impact force. The front hydraulic shock absorber 28 is installed on both sides of the front swingarm assembly 23, which can effectively buffer the impact on the front wheel 22 and reduce the transmission of bumps to the frame. The two sets of shock absorber springs 16 between the rear fork 14 and the frame body 18 can buffer the impact force on the rear wheel body 30, improve riding comfort, and reduce the wear and tear of components caused by vibration.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric-assisted bicycle, comprising the bicycle body, characterized in that: The electric bicycle body includes a frame body (18), a handlebar assembly, a tail assembly, a seat assembly, and front and rear wheel assemblies. The handlebar assembly and the tail assembly are respectively locked and installed at both ends of the frame body (18) by fastening bolts. The handlebar assembly realizes the control of the movement direction of the electric bicycle body, and the tail assembly realizes the electrical control of the electric bicycle body and the front and rear wheel assemblies. It also includes a battery compartment (29) located inside the frame body (18) for battery installation. The depth and width of the battery compartment (29) are widened to allow for the assembly of batteries of different specifications. A front flat fork assembly (23) for fastening the handlebar assembly is provided at one end of the frame body (18).

2. The electric-assisted bicycle according to claim 1, characterized in that: The faucet assembly includes a folding T-handle (1) and a first tube (2). The lower end of the folding T-handle (1) is inserted into the upper end of the first tube (2). The upper end of the first tube (2) is provided with an aluminum alloy front clamping part (24) for fastening the folding T-handle (1). The outer side of the first tube (2) is detachably provided with a cable-gathering groove tube for cable consolidation.

3. The electric-assisted bicycle according to claim 2, characterized in that: The steering wheel assembly also includes a steering wheel folding assembly (27) installed at one end of the frame body (18). The lower end of the first tube (2) is inserted into the upper end of the steering wheel folding assembly (27). The lower end of the first tube (2) is provided with an aluminum alloy guard clip (25) for fastening the steering wheel folding assembly (27). One end of the frame body (18) is provided with a tubular bearing (26) for the front swingarm assembly (23) to be rotatably installed. One end of the front swingarm assembly (23) is provided with an LED light (21). The other end of the frame body (18) is provided with a rear support handle (4).

4. The electric-assisted bicycle according to claim 1, characterized in that: The tail assembly includes a controller box (8) installed at the other end of the frame body (18). The controller box (8) has a controller box cover (7) at its upper end, a taillight (9) on one side of the controller box (8), a rear flap cover (31) on the lower surface of the controller box (8), and a foot support assembly (15) on one side of the frame body (18).

5. The electric-assisted bicycle according to claim 1, characterized in that: The front and rear wheel assembly includes front hydraulic shock absorbers (28) mounted on both sides of the front swingarm assembly (23). A front wheel (22) is mounted on the lower end of the front hydraulic shock absorber (28). A front bearing cap (20) mounted on the lower end of the front swingarm assembly (23) is provided above the front wheel (22). A front disc (19) is also provided on the lower end of the front hydraulic shock absorber (28). A front hydraulic brake (17) is provided on the front disc (19).

6. The electric-assisted bicycle according to claim 1, characterized in that: The front and rear wheel assembly also includes a rear fork (14) mounted on the other end of the vehicle body. The rear fork (14) is equipped with a rear disc (12) and a high-speed motor (11). The rear disc (12) is equipped with a rear hydraulic brake (10) and a rear caliper (13). The rear fork (14) is provided with a rear wheel body (30). Two sets of shock absorber springs (16) are provided between the rear fork (14) and the frame body (18).

7. The electric-assisted bicycle according to claim 1, characterized in that: The seat assembly includes a seat cushion (3) and a seat tube (5). A battery cover assembly (6) for mounting the seat tube (5) is provided above the battery compartment (29). The seat tube (5) is installed on the upper end of the battery cover assembly (6). The seat cushion (3) is inserted into the upper end of the seat tube (5). Fasteners for securing the seat cushion (3) are provided on the upper end of the seat tube (5).

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