Frame modularized power-assisted bicycle

Abstract

The utility model relates to the technical field of power-assisted bicycle discloses power-assisted bicycle of frame modularization, including front frame and with the detachable connection rear frame of front frame, and the front frame includes two die casting formed front half frame body, and the front half frame body is integrally formed, and two front half frame bodies are assembled towards, form the front frame, and the rear frame includes two liquid state die forging formed rear half frame body, and the rear half frame body is integrally formed, and two rear half frame bodies are assembled towards, form the rear frame, and the front frame and rear frame are all modularization composition, and the front frame is formed by two front half frame bodies assembled towards, and the front half frame body is die casting formation, and the rear frame is formed by two rear half frame bodies assembled towards, and the rear half frame body is liquid state die forging formation, like this, the whole frame is formed by two front half frame bodies and two rear half frame bodies assembled towards, simple structure, and the assembly efficiency is high, and the overall strength of the frame formed is high.

Description

Technical Field

[0001] This utility model patent relates to the technical field of electric bicycles, and more specifically, to an electric bicycle with a modular frame. Background Technology

[0002] A power-assisted bicycle is a type of bicycle that uses a battery as an auxiliary power source. It is equipped with a motor that can provide power assistance, enabling both human-powered riding and motor-assisted propulsion.

[0003] A power-assisted bicycle has a frame, which serves as the main framework of the entire bicycle and provides support.

[0004] In the existing technology, the frame is assembled from multiple loose parts, which not only makes the structure complex and difficult to assemble, but also results in low assembly efficiency and low overall strength of the frame. Utility Model Content

[0005] The purpose of this invention is to provide a modular electric bicycle, which aims to solve the problem of complex frame structure in the prior art.

[0006] This utility model is implemented as follows: a modular power-assisted bicycle includes a front frame and a rear frame detachably connected to the front frame. The front frame includes two die-cast front half-frames, which are integrally formed and assembled facing each other to form the front frame. The rear frame includes two liquid-forged rear half-frames, which are integrally formed and assembled facing each other to form the rear frame.

[0007] Furthermore, the rear frame has a longitudinally penetrating clamping interval at its rear, which is located between the two rear half-frames; a rear wheel is movably embedded between the clamping intervals, and a drive wheel is provided in the middle of the rear wheel; the rear ends of the two rear half-frames are arranged separately and are respectively connected to the two ends of the drive wheel.

[0008] Furthermore, the front ends of the two rear half frames abut against each other and converge to form a converged end; the bottom of the front frame has a bottom end, and the converged end is connected to the bottom end.

[0009] Furthermore, a rotating shaft is provided through the bottom end, and a gear disk and a foot pedal are connected to the rotating shaft.

[0010] Furthermore, the front of the front frame has a front end, on which a handlebar is connected; the front end is connected to a front wheel frame, on which a front wheel is connected.

[0011] Furthermore, the rear end of the front frame has a rear end, and a seat is connected to the rear end; the bottom of the seat has an adjustment shaft, which passes through the rear end and is arranged at an angle; a detachable warning light is connected to the adjustment shaft, and the warning light is arranged to face rearward.

[0012] Furthermore, the front frame has an inclined section, the lower end of which forms the bottom end, and the upper end of which forms the front end; a middle section protrudes from the middle of the inclined section, the lower end of which connects with the inclined section, and the upper end of which extends rearward to form the rear end.

[0013] The upper end of the middle section extends forward to form a crossbeam section. The rear end of the crossbeam section is connected to the middle section, and the front end of the crossbeam section is connected to the front end. The inclined section, the middle section, the crossbeam section, and the front end enclose a closed area. The front of the closed area is provided with a filling part, which closes the front of the closed area. The rear of the closed area is hollowed out to form a hollow part.

[0014] Furthermore, the middle section has a cavity with a bottom opening, the cavity contains a removable battery, and the battery is provided with a cover plate that closes the bottom opening.

[0015] Furthermore, the cover plate is provided with a latch. When the battery is embedded in the cavity, the latch is locked, and the cover plate securely seals the bottom opening.

[0016] Furthermore, the front of the rear frame has an inclined support section, which is isolated from the middle section to form an isolation area. A shock absorber is provided in the isolation area, with the rear end of the shock absorber connected to the support section and the front end of the shock absorber connected to the middle section.

[0017] Compared with the prior art, the modular electric bicycle provided by this utility model has modular components for both the front and rear frames. The front frame is formed by assembling two front half frames facing each other and is formed by die casting. The rear frame is formed by assembling two rear half frames facing each other and is formed by liquid forging. In this way, the entire frame is formed by assembling two front half frames and two rear half frames facing each other, which has a simple structure, high assembly efficiency, and high overall strength. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the modular electric bicycle frame provided by this utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the connection between the front frame and the rear frame provided by this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] Reference Figure 1-2 The image shown is a preferred embodiment of the present invention.

[0024] A modular electric bicycle includes a front frame 500 and a rear frame 600 detachably connected to the front frame 500. The front frame 500 includes two die-cast front frame bodies, which are integrally formed and assembled facing each other to form the front frame 500. The rear frame 600 includes two liquid-forged rear frame bodies 601, which are integrally formed and assembled facing each other to form the rear frame 600.

[0025] The aforementioned modular electric bicycle has a front frame 500 and a rear frame 600, both of which are modular. The front frame 500 is formed by assembling two front half frames facing each other and is formed by die casting. The rear frame 600 is formed by assembling two rear half frames 601 facing each other and is formed by liquid forging. In this way, the entire frame is formed by assembling two front half frames and two rear half frames 601 facing each other, which is simple in structure, has high assembly efficiency, and the overall strength of the resulting frame is high.

[0026] In this embodiment, the front half of the front frame 500 is formed by die casting of magnesium alloy, and the two front half frames are then joined together to form an integral unit; the rear half of the rear frame 600 is formed by liquid forging, and the two rear half frames 601 are then joined together to form an integral unit.

[0027] In this embodiment, the rear frame 600 has a longitudinally penetrating clamping interval 602 at its rear, which is located between the two rear half frames 601. A rear wheel 300 is movably embedded between the clamping intervals 602, and a drive wheel 301 is provided in the middle of the rear wheel 300. The rear ends of the two rear half frames 601 are arranged separately and are respectively connected to the two ends of the drive wheel 301.

[0028] In this way, by forming the clamping interval 602, it is convenient to install and connect the rear wheel 300 and the rear frame 600. Secondly, the drive wheel 301 is connected to a motor, which can drive the drive wheel 301 to rotate, thereby driving the rear wheel 300 to roll, playing the role of motor-assisted drive.

[0029] In this embodiment, the front ends of the two rear half-frames 601 abut against each other and converge to form a convergence end 604; the bottom of the front frame 500 has a bottom end 511, and the convergence end 604 is connected to the bottom end 511. In this way, the front frame 500 and the rear frame 600 can be docked front and rear, so that the front frame 500 and the rear frame 600 are connected as one unit.

[0030] In this embodiment, a rotating shaft 202 is provided through the bottom end 511. A gear disk 200 and a foot pedal 201 are connected to the rotating shaft 202. This facilitates the arrangement of the foot pedal 201. The gear disk 200 and the drive wheel 301 can be connected by a chain. When the user steps on the foot pedal 201, the gear disk 200 rotates, causing the rear wheel 300 to roll. Simultaneously, the drive wheel 301 also drives the rear wheel 300 to roll, thus providing auxiliary power to drive the rear wheel 300.

[0031] In this embodiment, the front frame 500 has a front end 501 at its front, and a handlebar 102 is connected to the front end 501; a front wheel frame 101 is connected to the front end 501, and a front wheel 100 is connected to the front wheel frame 101. When using the electric bicycle, the user can hold the handlebar 102 and control the swing of the front wheel frame 101, thereby controlling the swing of the front wheel 100.

[0032] In this embodiment, the rear end of the front frame 500 has a rear end 502, and a seat 400 is connected to the rear end 502; the bottom of the seat 400 has an adjustment shaft 401, which passes through the rear end 502 and is arranged at an angle; a detachable warning light 402 is connected to the adjustment shaft 401, and the warning light 402 is arranged facing rearward.

[0033] The height of the seat 400 can be adjusted by moving the adjusting shaft 401 up and down along the rear end 502 to meet the needs of the customer; secondly, the warning light 402 can be lit while the user is riding the electric bicycle, serving as a warning.

[0034] In this embodiment, the front frame 500 has an inclined section 503, the lower end of the inclined section 503 forms the bottom end 511, and the upper end of the inclined section 503 forms the front end 501; a middle section 508 protrudes from the middle of the inclined section 503, the lower end of the middle section 508 is connected to the inclined section 503, and the upper end of the middle section 508 extends rearward to form the rear end 502;

[0035] The upper end of the middle section 508 extends forward to form a crossbeam section 506. The rear end of the crossbeam section 506 connects with the middle section 508, and the front end of the crossbeam section 506 connects with the front end 501. The inclined section 503, the middle section 508, the crossbeam section 506, and the front end 501 enclose a closed area. The front of the closed area is provided with a filling part 507, which closes the front of the closed area. The rear of the closed area is hollowed out to form a hollow part 505.

[0036] The front frame 500 encloses a closed area, the front of which is filled with the filling part 507, and the rear of which is hollowed out. This not only enhances the overall strength of the front frame 500, but also reduces the material of the front frame 500, saving costs.

[0037] In this embodiment, the middle section 508 has a cavity with a bottom opening, and a removable battery 504 is disposed in the cavity. The battery 504 is provided with a cover plate, which closes the bottom opening. The battery 504 is directly embedded in the middle section 508, which facilitates the arrangement of the battery 504 and saves space.

[0038] In this embodiment, the cover plate is provided with a latch 510. When the battery 504 is embedded in the cavity, the latch 510 is locked, and the cover plate securely seals the bottom opening. This protects the battery 504, preventing it from being stolen, and also ensures that the battery 504 is placed more stably in the cavity.

[0039] In this embodiment, the front of the rear frame 600 has an inclined support section 603. The support section 603 and the middle section 508 are arranged in a front-to-back isolation manner to form an isolation area 509. A shock absorber 700 is provided in the isolation area 509. The rear end of the shock absorber 700 is connected to the support section 603, and the front end of the shock absorber 700 is connected to the middle section 508.

[0040] A shock absorber 700 is installed between the front frame 500 and the rear frame 600, so that the electric bicycle has elastic shock absorption and cushioning of vibration during riding.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular-frame electric bicycle, characterized in that, The vehicle includes a front frame and a rear frame detachably connected to the front frame. The front frame includes two die-cast front half-frames, which are integrally formed and assembled facing each other to form the front frame. The rear frame includes two liquid-forged rear half-frames, which are integrally formed and assembled facing each other to form the rear frame.

2. The modular electric bicycle as described in claim 1, characterized in that, The rear frame has a longitudinally penetrating clamping interval at its rear, which is located between the two rear half frames. A rear wheel is movably embedded between the clamping intervals, and a drive wheel is provided in the middle of the rear wheel. The rear ends of the two rear half frames are arranged separately and are respectively connected to the two ends of the drive wheel.

3. The modular frame-assisted bicycle as described in claim 1 or 2, characterized in that, The front ends of the two rear half frames abut against each other and converge to form a converged end; the bottom of the front frame has a bottom end, and the converged end is connected to the bottom end.

4. The modular electric bicycle as described in claim 3, characterized in that, A rotating shaft is inserted through the bottom end, and a gear disk and a foot pedal are connected to the rotating shaft.

5. The modular electric bicycle as described in claim 3, characterized in that, The front of the front frame has a front end, on which a handlebar is connected; the front end is connected to a front wheel frame, on which a front wheel is connected.

6. The modular frame electric bicycle as described in claim 5, characterized in that, The rear end of the front frame has a rear end, and a seat is connected to the rear end; the bottom of the seat has an adjustment shaft, which passes through the rear end and is arranged at an angle; a detachable warning light is connected to the adjustment shaft, and the warning light is arranged to face rearward.

7. The modular electric bicycle as described in claim 6, characterized in that, The front frame has an inclined section, the lower end of which forms the bottom end, and the upper end of which forms the front end; a middle section protrudes from the middle of the inclined section, the lower end of which connects with the inclined section, and the upper end of which extends rearward to form the rear end. The upper end of the middle section extends forward to form a crossbeam section. The rear end of the crossbeam section is connected to the middle section, and the front end of the crossbeam section is connected to the front end. The inclined section, the middle section, the crossbeam section, and the front end enclose a closed area. The front of the closed area is provided with a filling part, which closes the front of the closed area. The rear of the closed area is hollowed out to form a hollow part.

8. The modular electric bicycle as described in claim 7, characterized in that, The middle section has a cavity with a bottom opening, and a removable battery is provided in the cavity. The battery is provided with a cover plate, which closes the bottom opening.

9. The modular electric bicycle as described in claim 8, characterized in that, The cover plate is equipped with a latch. When the battery is embedded in the cavity, the latch is locked, and the cover plate securely seals the bottom opening.

10. The modular electric bicycle as described in claim 7, characterized in that, The front of the rear frame has an inclined support section, which is isolated from the middle section to form an isolation area. A shock absorber is provided in the isolation area. The rear end of the shock absorber is connected to the support section, and the front end of the shock absorber is connected to the middle section.

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