Electric power assisting device of bicycle

Abstract

The utility model discloses a bicycle electric power assisting device which comprises a fixing support, a modularized buckle type structure and a connecting piece, a self-adaption elastic pressing mechanism is arranged between the fixing support and the connecting piece, a hub motor is arranged at the side end of the connecting piece, and the side end of the hub motor is electrically connected with a battery and a control device. According to the bicycle electric power assisting device, through the extremely simple structural design, a user can conveniently and stably install the power assisting device on a bicycle within a short time without any tool and only through simple operation, and the bicycle electric power assisting device is simple in structure, low in maintenance complexity, capable of reducing quick-wear parts, low in maintenance cost, foldable, convenient to store, capable of being assembled and disassembled instantly, flexible and easy to use.

Description

Technical Field

[0001] This utility model relates to the field of electric power assist technology, specifically an electric power assist device for bicycles. Background Technology

[0002] Electric assist devices for bicycles are accessories designed for ordinary bicycles. Through mechanical structures and intelligent drive technology, they provide a convenient "instant assistance" experience without requiring modifications to the original bicycle structure. They provide auxiliary power to the wheels through gear transmission, thereby reducing the user's physical exertion and maintaining travel efficiency.

[0003] While electric assist devices for personal bicycles exist on the market, many suffer from complex assembly and disassembly, making quick installation and removal difficult. Furthermore, existing electric assist devices lack compatibility with the different structures of personal and shared bicycles, making them unsuitable for widespread use. Their poor adaptability and lack of easy disassembly and portability limit user accessibility.

[0004] Therefore, this utility model provides an electric assist device for bicycles to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an electric assist device for bicycles, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bicycle electric power assist device, comprising a fixed bracket, a modular snap-fit ​​structure, and a connector, wherein an adaptive elastic clamping mechanism is provided between the fixed bracket and the connector, a hub motor is provided on the side end of the connector, a battery and a control device are electrically connected to the side end of the hub motor, and a friction wheel is provided on the outer side of the hub motor.

[0007] The modular snap-fit ​​structure is responsible for a secure connection with the bicycle; the support frame provides a mounting base for each component; the adaptive elastic clamping mechanism uses installed springs to keep the drive motor in close contact with the bicycle wheel; the hub motor serves as the power source; the battery provides electrical power; and the control device is responsible for issuing commands and regulating the system's operation.

[0008] Preferably, a first connecting block is fixedly connected to the fixed bracket, and a support frame is rotatably connected to the side end of the fixed bracket via a second pin.

[0009] Preferably, the support frame is fixedly connected to a support adjustment block for tilt, and the first connecting block is threadedly connected to a first bolt.

[0010] Preferably, the modular snap-fit ​​structure includes a snap-fit, which is rotatably connected to the lower end of the support frame. A fixing block is fixedly connected to the bottom end of the support frame. A first slot is opened on the side end of the fixing block, and a second slot is opened on the side end of the snap-fit.

[0011] Preferably, the modular snap-fit ​​structure further includes a union bolt, one end of which is rotatably connected to the first slot of the fixing block, and a union nut is threaded onto the union bolt.

[0012] Preferably, the adaptive elastic clamping mechanism includes a first pin, which is rotatably connected to the fixed bracket and the side of the connector, and a torsion spring is provided on the first pin. The friction wheel is made of highly elastic rubber with anti-slip texture on the surface.

[0013] Beneficial effects

[0014] This utility model provides an electric assist device for bicycles. Compared with the prior art, it has the following advantages:

[0015] (1) A bicycle electric power assist device, which is designed with a minimalist structure, so that users can easily install the power assist device on the bicycle in a short time without any tools and with simple operation. It has a simple structure, low maintenance complexity, reduces vulnerable parts, low maintenance cost, is foldable, easy to store, can be installed and removed immediately, and is flexible and easy to use.

[0016] (2) A bicycle electric assist device that enables riders to reach a more distant destination with less physical exertion and faster speed, significantly improving the efficiency and comfort of bicycle travel, effectively solving the fatigue problem caused by traditional human-powered riding, and alleviating the parking problem caused by the increasingly strict management of electric vehicles and the surge in vehicles in large cities. Individual users do not need to bring their own electric vehicles. With the help of this device and shared bicycles, they can realize the electric assist function and use it at any time.

[0017] (3) A bicycle electric assist device, which is composed of a modular snap-fit ​​structure, a support frame, an adaptive elastic clamping mechanism, a hub motor, a battery and a control device. The structure is standardized and applicable to common bicycles and shared bicycles, with strong adaptability. Attached Figure Description

[0018] Figure 1 This is a side view of the overall device structure of this utility model;

[0019] Figure 2 This is a structural diagram of the overall device of this utility model;

[0020] Figure 3 This is a folded diagram of the overall device structure of this utility model;

[0021] Figure 4 This is a top view of the overall device structure of this utility model;

[0022] Figure 5 This is a right view of the overall device structure of this utility model;

[0023] Figure 6 This is the utility model Figure 2 Partial A structure diagram;

[0024] Figure 7 This is the utility model Figure 4 Local B-structure diagram.

[0025] In the diagram: 1. Fixed bracket; 2. First connecting block; 3. First bolt; 4. Support adjustment block; 5. Support frame;

[0026] Modular snap-fit ​​structure: 61. Fixing block; 62. Snap-fit; 63. Union nut; 64. Union bolt;

[0027] Adaptive elastic clamping mechanism: 71. First pin; 72. Torsion spring;

[0028] 8. Connecting parts; 9. Hub motor; 10. Battery and control device. Detailed Implementation

[0029] 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.

[0030] Example 1:

[0031] Please see Figure 1-7 An electric assist device for bicycles includes a fixed bracket 1, a modular snap-fit ​​structure and a connector 8. An adaptive elastic clamping mechanism is provided between the fixed bracket 1 and the connector 8. A hub motor 9 is provided on the side of the connector 8. A battery and a control device 10 are electrically connected to the side of the hub motor 9. A friction wheel is provided on the outside of the hub motor 9.

[0032] A first connecting block 2 is fixedly connected to the fixed bracket 1, and a support frame 5 is rotatably connected to the side end of the fixed bracket 1 via a second pin.

[0033] The support frame 5 is fixedly connected to the support adjustment block 4 at a 30-degree angle, and the first connecting block 2 is threadedly connected to the first bolt 3.

[0034] The modular snap-fit ​​structure includes a snap-fit ​​62, which is rotatably connected to the lower end of the support frame 5. A fixing block 61 is fixedly connected to the bottom end of the support frame 5. A first slot is opened on the side end of the fixing block 61, and a second slot is opened on the side end of the snap-fit ​​62.

[0035] The modular snap-fit ​​structure also includes a union bolt 64, one end of which is rotatably connected to the first slot of the fixed block 61, and a union nut 63 is threaded onto the union bolt 64.

[0036] The adaptive elastic clamping mechanism includes a first pin 71, which is rotatably connected to the side of the fixed bracket 1 and the connector 8. A torsion spring 72 is provided on the first pin 71, and the friction wheel is made of high elastic rubber with anti-slip texture on the surface.

[0037] Working process: By manually turning and opening the union bolt 64 and union nut 63, the limiting position of the fixing block 61 and the buckle 62 is released, and the bicycle front fork is connected to the inner side of the fixing block 61 and the buckle 62. Then, the union bolt 64 and union nut 63 are used to fix the whole device. The bicycle front wheel is aligned with the groove between the fixing bracket 1 and the support frame 5. The first bolt 3 is manually adjusted and rotated so that the first bolt 3 supports the support adjustment block 4, so that the fixing bracket 1 and the support frame 5 form a suitable angle and fit against the outside of the front wheel. Then, the self-adaptive elastic clamping mechanism, through the installed torsion spring 72, keeps the hub motor 9 in close contact with the bicycle front wheel. The hub motor 9 is controlled to rotate by the battery and control device 10. The friction wheel set on the outside of the hub motor 9 rotates and drives the front wheel to rotate, thereby providing electric assistance to the bicycle, thus easily improving riding efficiency and comfort.

[0038] After use, the device can be folded by rotating the fixed bracket 1 and the support frame 5 for easy storage.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] 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. A bicycle electric assist device, characterized in that, The device includes a fixed bracket (1), a modular snap-fit ​​structure, and a connector (8). An adaptive elastic clamping mechanism is provided between the fixed bracket (1) and the connector (8). A hub motor (9) is provided on the side of the connector (8). A battery and a control device (10) are electrically connected to the side of the hub motor (9). A friction wheel is provided on the outside of the hub motor (9). The modular snap-fit ​​structure includes a snap-fit ​​(62), which is rotatably connected to the lower end of the support frame (5). A fixing block (61) is fixedly connected to the bottom end of the support frame (5). A first slot is opened on the side end of the fixing block (61), and a second slot is opened on the side end of the snap-fit ​​(62). The modular snap-fit ​​structure also includes a union bolt (64), one end of which is rotatably connected to the first slot of the fixed block (61), and a union nut (63) is threaded onto the union bolt (64).

2. The electric assist device for bicycles according to claim 1, characterized in that: A first connecting block (2) is fixedly connected to the fixed bracket (1), and a support frame (5) is rotatably connected to the side end of the fixed bracket (1) through a second pin.

3. The electric assist device for bicycles according to claim 2, characterized in that: The support frame (5) is fixedly connected to a support adjustment block (4) at an inclination of 30 degrees, and the first connecting block (2) is threaded with a first bolt (3).

4. The electric assist device for bicycles according to claim 1, characterized in that: The adaptive elastic clamping mechanism includes a first pin (71), which is rotatably connected to the side of the fixed bracket (1) and the connector (8). A torsion spring (72) is provided on the first pin (71). The friction wheel is made of high elastic rubber with anti-slip texture on the surface.

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