Quick-release pedal device connected with center shaft of electric vehicle

Abstract

The utility model relates to the technical field of bicycle accessories, and discloses a quick-release pedal device connected with a middle shaft of an electric bicycle, which comprises a middle shaft, a crank, a conversion block, a quick-release connector and a pedal device, the crank comprises a first connecting hole, and the middle shaft is inserted into the first connecting hole; one end of the conversion block is mounted on the middle shaft; the quick release connector is in threaded connection with the other end of the conversion block; and the pedal device is detachably connected with the quick release connector. The pedal device is installed at the position of the middle shaft, and the problem that the pedal device is prone to colliding with the legs when an electric vehicle is ridden is solved. And the effects of safety and comfort are achieved.

Description

Technical Field

[0001] This utility model relates to the field of bicycle accessories technology, specifically a quick-release pedal device for connecting the bottom bracket of an electric vehicle. Background Technology

[0002] Traditional pedal mechanisms on existing electric vehicles and bicycles are typically fixed to the end of the crank via threads or an integrated structure. During riding, the crank rotates at high speed with the chainring, which may cause the pedal to collide with the rider's legs, affecting both safety and comfort. To address this issue, some solutions have attempted to add guards to the crank, shorten the crank length, or add folding mechanisms, but none of these fundamentally eliminate the risk posed by the pedal's rotation with the crank. Furthermore, installation and removal still rely on threaded tools, making the process cumbersome.

[0003] Therefore, there is an urgent need to develop a quick-release pedal device that connects to the central axle of an electric vehicle. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quick-release pedal device connected to the bottom axle of an electric vehicle. The aim is to install the pedal device at the bottom axle, solving the problem of easy collision between the pedal device and the legs during riding; it offers both safety and comfort. The implementation of this technical solution is as follows:

[0005] A quick-release pedal device for connecting the bottom bracket of an electric vehicle includes: a bottom bracket, a crank, a conversion block, a quick-release connector, and a pedal device; the crank includes a first connecting hole, and the bottom bracket is inserted into the first connecting hole; one end of the conversion block is mounted on the bottom bracket; the quick-release connector is threaded to the other end of the conversion block; and the pedal device is detachably connected to the quick-release connector.

[0006] Preferably, one end of the conversion block has an external thread, and the other end has an internal thread hole. The conversion block is threaded to the central shaft through the external thread end, and the internal thread hole is threaded to the quick-release connector.

[0007] Preferably, a shim is provided between the conversion block and the central shaft.

[0008] Preferably, the foot pedal device includes a shaft core with a limiting groove; the quick-release connector has a snap-fit ​​hole with a ball bearing on the inner wall of the snap-fit ​​hole, the purpose of which is to enable quick installation and disassembly of the quick-release connector and the foot pedal device through the ball bearing and the limiting groove.

[0009] Preferably, the surface of the foot pedal device is also provided with anti-slip texture.

[0010] Preferably, the crank also includes a second connecting hole.

[0011] Compared with the prior art, this application has the following advantages:

[0012] This technical solution's quick-release pedal device achieves flexible assembly and function switching through the collaboration of multiple components: the bottom bracket is inserted into the first connecting hole of the crank to form the basic structure; one end of the conversion block is threaded to the bottom bracket, and the other end is adapted to the external thread of the quick-release connector through an internal threaded hole, solving the specification difference between the quick-release connector and the bottom bracket, constructing a transitional connection, and realizing standardized and modular assembly; the quick-release connector uses ball bearings to cooperate with the limiting groove of the pedal device to realize the quick locking and separation of the two, realizing the quick installation and disassembly of the two, reducing the replacement time of the pedal device, and improving the ease of operation; the anti-slip texture on the surface of the pedal device can enhance friction and prevent slippage.

[0013] The device in this technical solution can switch between three modes as needed during operation: When installed in the first connection hole, the pedal device does not rotate with the crank, avoiding collision with the legs during riding. During assembly, the crank and bottom bracket are positioned sequentially, the adapter is installed, the quick-release connector is threadedly connected to the adapter, and locked to the pedal device. During disassembly, the quick-release connector is unlocked and the adapter is unscrewed to separate the device. When installed in the second connection hole, the quick-release connector is unscrewed and reinstalled in the hole before connecting the pedal device, which can quickly address the scenario of needing to ride when the electric vehicle is out of power. When riding in pure electric mode, the quick-release connector and pedal device can be removed as a whole, and each component is easy to disassemble and assemble, facilitating individual maintenance or storage.

[0014] In summary, installing the pedals at the bottom bracket solves the problem of easy collision between the pedals and legs during riding an electric bike; it improves safety and comfort; it revolutionizes the traditional cumbersome assembly and disassembly process, enabling quick assembly and disassembly of the pedals and bottom bracket through quick-release connectors and adaptable structural design. It also simplifies the assembly process, improving efficiency; and for routine maintenance (such as cleaning and inspection), troubleshooting, or parts replacement, no professional skills or complex tools are required, significantly saving time and labor costs and optimizing the user experience. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is one of the exploded views of the overall structure of this utility model;

[0018] Figure 3 This is the second exploded view of the overall structure of this utility model;

[0019] Figure 4This is a structural diagram of the conversion block of this utility model;

[0020] Figure 5 This is a structural diagram of the quick-release connector of this utility model;

[0021] Figure 6 This is a structural diagram of the foot pedal device of this utility model.

[0022] Explanation of reference numerals in the attached diagram: 100, frame;

[0023] 1. Central axis;

[0024] 2. Crank; 21. First connecting hole; 22. Second connecting hole;

[0025] 3. Converter block; 31. Internal threaded hole; 32. Gasket;

[0026] 4. Quick-release connector; 41. Snap-fit ​​hole; 411. Ball bearing;

[0027] 5. Foot pedal device; 51. Shaft core; 511. Limiting groove; 52. Anti-slip texture. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] refer to Figure 1-6 The embodiments of this application provide a quick-release pedal device for connecting the bottom bracket of an electric vehicle. It is installed on the frame 100 of an electric vehicle or electric bicycle and specifically includes: a bottom bracket 1, a crank 2, a conversion block 3, a quick-release connector 4, and a pedal device 5. The crank 2 includes a first connecting hole 21, and the bottom bracket 1 is inserted into the first connecting hole 21. One end of the conversion block 3 is installed on the bottom bracket 1. The quick-release connector 4 is threadedly connected to the other end of the conversion block 3. The pedal device 5 is detachably connected to the quick-release connector 4.

[0032] like Figure 1-3 As shown, the crank 2 also includes a second connecting hole 22. The pedal device of a traditional electric vehicle or electric bicycle is usually installed at the second connecting hole 22 of the crank 2. This technical solution achieves different functions through a quick-release function, as detailed below:

[0033] (1) The pedal device 5 is installed at the first connecting hole 21 of the crank 2. During the riding of the electric vehicle, the pedal device 5 does not rotate with the crank 2, so that the rider's legs are protected from collision with the pedal device 5. The assembly process is as follows: first, the crank 2 is inserted into the corresponding bottom bracket 1 to complete the basic positioning; then, the conversion block 3 is installed on the bottom bracket 1 to build a transition connection; then, the conversion block 3 is threaded to one end of the quick-release connector 4, and the other end is quickly locked to the pedal device 5 to realize the overall assembly of the pedal device 5 and the bottom bracket 1, so that the pedal device 5 can stably bear the riding torque. The disassembly process is as follows: by operating the quick-release connector 4, the locking state of the pedal device 5 is released, and then the conversion block 3 is unscrewed with an external tool to separate the quick-release connector 4 from the conversion block 3, so as to complete the quick disassembly. This technical solution facilitates the individual maintenance or storage of each component.

[0034] (2) The pedal device 5 is installed at the second connecting hole 22 of the crank 2. This can be achieved through the quick-release connector 4. Specifically, when the electric vehicle or electric bicycle is running out of power, the pedal device 5 needs to be installed at the second connecting hole 22 of the crank 2. Since the pedal device 5 and the quick-release connector 4 are detachably connected, the replacement time of the pedal device 5 can be reduced. The quick-release connector 4 is unscrewed with an external tool, and then the quick-release connector 4 is installed at the second connecting hole 22. The pedal device 5 is then connected to the quick-release connector 4.

[0035] (3) No pedal device 5 is installed. When riding in pure electric mode, the pedal device 5 is not needed, and the quick-release connector 4 and the pedal device 5 can be removed at the same time.

[0036] The following embodiments mainly describe the implementation of the foot pedal device 5 being installed at the first connecting hole 21 of the crank 2.

[0037] In traditional pedal connection methods, the quick-release connector 4 cannot be directly connected to the bottom bracket 1. An adapter block 3 is needed to create a compatible connection, forming a transitional link between the quick-release connector 4 and the bottom bracket 1. In some implementations, such as... Figure 3-4 As shown, one end of the conversion block 3 has an external thread, and the other end has an internal thread hole 31. The conversion block 3 is threaded to the central shaft 1 through the external thread end, and the internal thread hole 31 of the conversion block 3 is threaded to the quick-release connector 4. The conversion block 3 solves the problem of the specification difference that the quick-release connector 4 cannot be directly connected to the central shaft 1, and realizes standardization and modularization. Furthermore, a washer 32 is also provided between the conversion block 3 and the central shaft 1 to prevent the threads from seizing together and facilitate later maintenance.

[0038] In some implementations, such as Figure 3-5 As shown, one end of the quick-release connector 4 is externally threaded, and the externally threaded end of the quick-release connector 4 is threadedly connected to the internally threaded hole 31 of the conversion block 3. The quick-release connector 4 is provided with a snap-fit ​​hole 41, and the inner wall of the snap-fit ​​hole 41 is provided with a ball 411. The quick-release connector 4 achieves quick release with the foot pedal device 5 through the ball 411.

[0039] In some implementations, such as Figure 3-6 As shown, the pedal device 5 includes a shaft core 51, which allows the pedal to rotate freely around it. The shaft core 51 has a limiting groove 511. When installing the pedal device 5, the shaft core 51 is inserted into the snap-fit ​​hole 41, and quick installation and removal are achieved by the quick-release connector 4's ball bearing 411 engaging and locking with the limiting groove 511. The quick installation and removal of the pedal device 5 and the quick-release connector 4 is common prior art, therefore its structure will not be specifically described, and this application will not describe its implementation in detail, but this does not mean that this application cannot achieve it. Furthermore, the surface of the pedal device 5 is also provided with anti-slip texture 52. By setting the anti-slip texture 52, the friction between the shoe sole and the pedal device 5 can be increased, preventing slippage during riding.

[0040] The working principle of the quick-release pedal device connecting the electric vehicle's central axle in this embodiment is as follows:

[0041] The quick-release pedal device of this technical solution achieves flexible assembly and function switching through the collaboration of multiple components: the bottom bracket 1 is inserted into the first connecting hole 21 of the crank 2 to form the basic structure, one end of the conversion block 3 is threaded to the bottom bracket 1, and the other end is adapted to the external thread of the quick-release connector 4 through the internal thread hole 31, so as to solve the specification difference between the quick-release connector 4 and the bottom bracket 1 and build a transitional fit connection; the quick-release connector 4 uses the ball 411 to cooperate with the limiting groove 511 of the pedal device 5 to realize the quick locking and separation of the two; the anti-slip texture 52 on the surface of the pedal device 5 can enhance the friction and prevent slippage. Three modes can be switched as needed during operation: When installed in the first connecting hole 21, the pedal device 5 does not rotate with the crank 2, avoiding collision with the legs during riding. During assembly, the crank 2 and the bottom bracket 1 are positioned sequentially, the conversion block 3 is installed, the quick-release connector 4 is threadedly connected to the conversion block 3, and locked to the pedal device 5. During disassembly, the quick-release connector 4 is unlocked and the conversion block 3 is unscrewed to separate the pedal device 5. When installed in the second connecting hole 22, the quick-release connector 4 is unscrewed and reinstalled into the hole, and then the pedal device 5 is connected, which can quickly respond to the scenario of riding the electric vehicle when the battery is low. When riding in pure electric mode, the quick-release connector 4 and the pedal device 5 can be removed as a whole, and the components are easy to disassemble and assemble, making it convenient for individual maintenance or storage. The above are only embodiments of this utility model and are not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A quick-release pedal device for connecting to the central axle of an electric vehicle, characterized in that, include: Central axis; A crank, the crank including a first connecting hole, the central shaft being inserted into the first connecting hole; A conversion block, one end of which is mounted on the central shaft; A quick-release connector, which is threaded to the other end of the conversion block; A foot pedal device, wherein the foot pedal device is detachably connected to the quick-release connector.

2. The quick-release pedal device for connecting the central axle of an electric vehicle according to claim 1, characterized in that, One end of the conversion block has an external thread, and the other end has an internal thread hole. The conversion block is threaded to the central shaft through the external thread end, and the internal thread hole is threaded to the quick-release connector.

3. The quick-release pedal device for connecting the central axle of an electric vehicle according to claim 1, characterized in that, A shim is provided between the conversion block and the central shaft.

4. The quick-release pedal device for connecting the central axle of an electric vehicle according to claim 1, characterized in that, The foot pedal device includes a shaft core, and a limiting groove is provided on the shaft core; The quick-release connector is provided with a snap-fit ​​hole, and the inner wall of the snap-fit ​​hole is provided with a ball bearing. The purpose is to enable the quick-release connector and the foot pedal device to be quickly installed and disassembled through the ball bearing and the limiting groove.

5. The quick-release pedal device for connecting the central axle of an electric vehicle according to claim 4, characterized in that, The foot pedals also have anti-slip textures on their surface.

6. The quick-release pedal device for connecting the lower axle of an electric vehicle according to any one of claims 1-5, characterized in that, The crank also includes a second connecting hole.

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