Foldable electric bicycle

Abstract

The utility model discloses a foldable electric bicycle, which is characterized in that a front fork is connected with the front end of a main frame, and the upper end of an auxiliary frame is connected with the rear end of the main frame; the handlebar is connected to the upper end of the vertical pipe, and the rear fork is connected with the lower end of the auxiliary frame through a rotating mechanism. The rear fork is connected with one end of the shock absorber through a detachable connecting device, and the other end of the shock absorber is connected with the main frame; the saddle is connected to the main frame; pedals are arranged on the two sides of the rear bottom fork respectively. The rear wheel assembly is mounted on the rear bottom fork; the lower end of the vertical pipe is rotatably connected with the upper end of the front fork, and the vertical pipe can rotate up and down in the direction close to or away from the main frame; the motor assembly and the modular battery pack are installed on the auxiliary frame, the motor assembly is in transmission connection with the rear wheel assembly through a transmission chain, and the modular battery pack supplies power to the motor assembly. The front wheel assembly of the electric bicycle can be quickly disassembled, the rear fork, the folding handlebar and the vertical pipe can be folded, the size of the whole bicycle is obviously reduced, and the electric bicycle is convenient to carry and store.

Description

Technical Field

[0001] The utility model relates to the technical field of electric bicycles, in particular to a foldable electric bicycle. Background Art

[0002] Although some existing electric bicycles have a folding function, the folding degree is often insufficient and cannot meet the diverse usage requirements. Therefore, developing an electric bicycle with an innovative folding structure has important market demand and application prospects. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a foldable electric bicycle.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A foldable electric bicycle, comprising a main frame, a sub-frame, a rear fork, a motor assembly, a pedal, a handlebar, a seat tube, a front fork, a front wheel assembly, a shock absorber, a seat, a modular battery pack and a rear wheel assembly;

[0006] The front fork is connected to the front end of the main frame, and the upper end of the sub-frame is connected to the rear end of the main frame; the handlebar is connected to the upper end of the seat tube, and the rear fork is connected to the lower end of the sub-frame through a rotating mechanism;

[0007] The rear fork is connected to one end of the shock absorber through a detachable connecting device, and the other end of the shock absorber is connected to the main frame; the seat is connected to the main frame; pedals are respectively provided on both sides of the rear fork; the rear wheel assembly is installed on the rear fork;

[0008] The lower end of the seat tube is rotatably connected to the upper end of the front fork, and the seat tube can rotate up and down in a direction close to or away from the main frame;

[0009] The motor assembly and the modular battery pack are installed on the subframe, the motor assembly is connected to the rear wheel assembly through a transmission chain, and the modular battery pack supplies power to the motor assembly.

[0010] Furthermore, the voltage of the motor assembly is 48V, the rated power is 350W, and the peak power is 1000W.

[0011] Furthermore, the main frame is made of high-strength aluminum alloy material.

[0012] Furthermore, a plurality of threaded holes are reserved on the main frame for installing various expansion accessories.

[0013] Furthermore, the front wheel assembly is connected to the lower end of the front fork via a quick-release shaft.

[0014] Furthermore, the main frame is a bilaterally symmetrical hollow structure.

[0015] Furthermore, the modular battery pack has a bidirectional Type-C charging and discharging interface.

[0016] Furthermore, the footrest is foldably connected to the rear fork.

[0017] Furthermore, the rear wheel assembly is equipped with a rear disc brake pump and a brake disc system.

[0018] Furthermore, the grips on both sides of the handlebar can be rotated downward to a vertical state or rotated upward to a horizontal state.

[0019] The beneficial effects of the utility model are as follows: the front wheel assembly of the electric bicycle of the utility model can be quickly disassembled, the rear flat fork, the folding handlebar and the seat tube can all be folded, the volume of the whole bicycle is significantly reduced, and it is convenient to carry and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a diagram of an electric bicycle in an expanded state in an embodiment of the utility model;

[0021] Figure 2 This is a diagram of the folded state of the electric bicycle in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that this embodiment is based on the technical solution and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to this embodiment.

[0023] This embodiment provides a foldable electric bicycle, such as Figure 1 As shown, it includes a main frame 11, a sub-frame 12, a rear fork 13, a motor assembly 14, a pedal 15, a handlebar 21, a seat tube 210, a front fork 22, a front wheel assembly 23, a shock absorber 24, a seat 25, a modular battery pack 26 and a rear wheel assembly 27;

[0024] The front fork 22 is connected to the front end of the main frame 11, and the upper end of the sub-frame 12 is connected to the rear end of the main frame 11; the handlebar 21 is connected to the upper end of the seat tube 210, and the rear fork 13 is connected to the lower end of the sub-frame 12 through a rotating mechanism;

[0025] The rear fork 13 is connected to one end of the shock absorber 24 through a detachable connecting device 31 (such as a locking pin), and the other end of the shock absorber 24 is connected to the main frame 11; the seat 25 is connected to the main frame 11; pedals 15 are respectively provided on both sides of the rear fork 13; the rear wheel assembly 27 is installed on the rear fork 13;

[0026] The lower end of the seat tube 210 is rotatably connected to the upper end of the front fork 22 , and the seat tube 210 can rotate up and down in a direction close to or away from the main frame 11 .

[0027] The motor assembly 14 and the modular battery pack 26 are installed on the subframe 12 . The motor assembly 14 is connected to the rear wheel assembly 27 via a transmission chain 29 , and the modular battery pack 26 supplies power to the motor assembly 14 .

[0028] In this embodiment, the voltage of the motor assembly 14 is 48V, the rated power is 350W, and the peak power is 1000W, providing strong power and efficient transmission.

[0029] In this embodiment, the main frame 11 is made of high-strength aluminum alloy material, which is light and strong and can withstand various stresses and loads during long-term use.

[0030] In this embodiment, a plurality of threaded holes 36 are reserved on the main frame 11 for installing various expansion accessories.

[0031] In this embodiment, the front wheel assembly 23 is connected to the lower end of the front fork 22 via a quick-release shaft 34, so that the user can quickly disassemble and assemble the front wheel.

[0032] In this embodiment, the main frame 11 is a bilaterally symmetrical hollow structure, which can reduce the weight while ensuring the structural strength and stability of the entire vehicle.

[0033] In this embodiment, the modular battery pack 26 has a bidirectional Type-C charging and discharging interface, and the maximum PD power is 100 watts.

[0034] In this embodiment, the footrest 15 is foldably connected to the rear fork 13 .

[0035] In this embodiment, the rear wheel assembly 27 is equipped with a rear disc brake pump and a brake disc system, which provides strong braking force and good braking effect, thereby improving riding safety.

[0036] In this embodiment, the grips on both sides of the handlebar 21 can be rotated downward to a vertical state or rotated upward to a horizontal state.

[0037] Through the above structure, when the electric bicycle is in the folded state, the front wheel assembly 23 can be disassembled, the rear flat fork 13, the folding handlebar 21 and the seat tube 210 can all be folded, and the volume of the entire vehicle is significantly reduced, making it convenient to carry and store.

[0038] When folding is required, the front wheel assembly 23 is first disassembled from the front fork 22, and then the connecting device 31 is disassembled to disconnect the rear fork 13 and the shock absorber 24, so that the rear fork 13 and the rear wheel assembly 27 can be rotated forward and folded. In addition, the handles on both sides of the handlebar 21 are rotated downward to a vertical state to fold them up, and then the seat tube 210 is rotated downward in a direction close to the main frame 11 and folded on the main frame 11. The folded electric bicycle is as follows Figure 2 shown.

[0039] For those skilled in the art, various corresponding changes and modifications can be made according to the above technical solutions and concepts, and all of these changes and modifications should be included in the protection scope of the claims of the utility model.

Claims

1. A foldable electric bicycle, characterized in that: It includes a main frame (11), a sub-frame (12), a rear fork (13), a motor assembly (14), a pedal (15), a handlebar (21), a seat tube (210), a front fork (22), a front wheel assembly (23), a shock absorber (24), a seat (25), a modular battery pack (26) and a rear wheel assembly (27); The front fork (22) is connected to the front end of the main frame (11), and the upper end of the sub-frame (12) is connected to the rear end of the main frame (11); the handlebar (21) is connected to the upper end of the seat tube (210), and the rear fork (13) is connected to the lower end of the sub-frame (12) through a rotating mechanism; The rear fork (13) is connected to one end of the shock absorber (24) via a detachable connecting device (31), and the other end of the shock absorber (24) is connected to the main frame (11); the seat (25) is connected to the main frame (11); pedals (15) are respectively provided on both sides of the rear fork (13); the rear wheel assembly (27) is mounted on the rear fork (13); The lower end of the seat tube (210) is rotatably connected to the upper end of the front fork (22), and the seat tube (210) can rotate up and down in a direction close to or away from the main frame (11); The motor assembly (14) and the modular battery pack (26) are installed on the sub-frame (12); the motor assembly (14) is connected to the rear wheel assembly (27) via a transmission chain (29); and the modular battery pack (26) supplies power to the motor assembly (14).

2. The foldable electric bicycle according to claim 1, characterized in that: The voltage of the motor assembly (14) is 48V, the rated power is 350W, and the peak power is 1000W.

3. The foldable electric bicycle according to claim 1, characterized in that: The main frame (11) is made of high-strength aluminum alloy material.

4. The foldable electric bicycle according to claim 1, characterized in that: The main frame (11) is provided with a plurality of threaded holes (36) for installing various expansion accessories.

5. The foldable electric bicycle according to claim 1, characterized in that: The front wheel assembly (23) is connected to the lower end of the front fork (22) via a quick-release shaft (34).

6. The foldable electric bicycle according to claim 1, characterized in that: The main vehicle frame (11) is a bilaterally symmetrical hollow structure.

7. The foldable electric bicycle according to claim 1, characterized in that: The modular battery pack (26) has a bidirectional Type-C charging and discharging interface.

8. The foldable electric bicycle according to claim 1, characterized in that: The footrest (15) is foldably connected to the rear fork (13).

9. The foldable electric bicycle according to claim 1, characterized in that: The rear wheel assembly (27) is equipped with a rear disc brake pump and a brake disc system.

10. The foldable electric bicycle according to claim 1, characterized in that: The grips on both sides of the handlebar (21) can be rotated downward to a vertical state or rotated upward to a horizontal state.

Images