A hidden battery lock pin theftproof device and electric bicycle

Abstract

The utility model discloses a hidden battery locking pin's anti -theft device and electric bicycle, including battery box body, locking mechanism and fixed on the battery mounting seat and guide rail of frame, battery box body includes sleeve, the upper cover and lower cover of covering in sleeve top opening and bottom opening respectively, sleeve is used to accommodate battery core, and battery mounting seat is electrically connected with the bottom of lower cover, and the edge of lower cover has longitudinal recess that extends to upper cover along the lateral wall of sleeve, and the edge of lower cover has the entry slot that communicates with longitudinal recess, and locking mechanism is located in the position of sleeve adjacent lower cover, and locking mechanism has the bolt in, can insert into the lock hole and lock battery box body on the guide rail, and battery box body is slidably assembled to the guide rail through entry slot. Compared with prior art, the utility model has the advantages that locking mechanism is located in the position adjacent lower cover, and the entry slot of lower cover is covered and hidden by battery mounting seat, and the insertion path of screwdriver and other tools is blocked, and the anti -theft performance is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to an anti-theft device with a concealed battery lock pin and an electric bicycle. Background Technology

[0002] Electric bicycles are vehicles that use batteries as auxiliary power and electric motors as the drive unit. Due to their low cost and ease of riding, they have been widely used in various fields.

[0003] The standard battery in an electric bicycle is installed on the bicycle in the following manner: Figure 1 and Figure 2 As shown, longitudinal grooves are machined into the sidewalls of the battery, and a mounting base is installed at the corresponding position on the frame, with longitudinal guide rails arranged within the mounting base. The battery slides into the mounting position from top to bottom through the grooves and guide rails. Due to the length of the guide rails, an open slot needs to be reserved on the top cover of the battery as the starting point of the groove to facilitate smooth battery insertion. The bottom of the battery has pins or sockets for electrical connection with the battery mounting base on the frame. A lock is integrated at the top of the battery; the latch (pin) extends and inserts directly into the lock hole of the guide rail to complete the locking process.

[0004] However, this structure has obvious anti-theft defects: the open slot of the top cover is always exposed. Malicious people only need to insert tools such as screwdrivers into the slot when the car owner leaves the car briefly (such as within a few minutes of entering a store to shop), and forcefully pry it to make the longitudinal groove disengage from the slide rail, thereby causing the locking tongue (pin) to exit the guide rail. They can then easily slide the entire battery out along the guide rail and steal it, making the anti-theft performance questionable. Utility Model Content

[0005] This utility model addresses the problem of poor anti-theft performance of electric bicycle batteries. The technical problem to be solved by this utility model is to provide an anti-theft device with a hidden battery lock pin.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a hidden battery lock pin anti-theft device, including a battery box, a locking mechanism, a battery mounting base and a guide rail fixed on the vehicle frame, the battery box including a sleeve, an upper cover and a lower cover respectively covering the top opening and bottom opening of the sleeve, the sleeve for accommodating battery cells, the battery mounting base electrically connected to the bottom of the lower cover, characterized in that: the edge of the lower cover extends a longitudinal groove along the side wall of the sleeve to the upper cover, the edge of the lower cover has an inlet groove communicating with the longitudinal groove, the locking mechanism is located on the sleeve near the lower cover, the guide rail is provided with a lock hole, the locking mechanism has a pin that can be inserted into the lock hole to lock the battery box on the guide rail, the battery box is slidably assembled onto the guide rail through the inlet groove, and electrically connected to the battery mounting base along the guide rail, the inlet groove is covered by the battery mounting base.

[0007] A further preferred embodiment of this utility model is: a battery pin is provided at the bottom of the lower cover, and a battery socket that mates with the battery pin is provided on the battery mounting base.

[0008] A further preferred embodiment of this utility model is: a battery socket is provided at the bottom of the lower cover, and a battery pin that mates with the battery socket is provided on the battery mounting base.

[0009] A further preferred embodiment of this utility model is: the locking mechanism includes a key, a lock cylinder, and a bolt, wherein the bolt is the aforementioned pin, and the battery box is locked or unlocked by operating the key to rotate the lock cylinder and push the bolt into or out of the keyhole.

[0010] A further preferred embodiment of this utility model is that the key has a thickness of 2.5 mm and a square shape.

[0011] A further preferred embodiment of this utility model is that the upper cover is provided with a handle.

[0012] A further preferred embodiment of this utility model is: the sleeve is provided with a fire extinguishing capsule, and the fire extinguishing capsule is configured to automatically spray fire extinguishing powder onto the battery when an abnormal increase in battery temperature or reaching a predetermined threshold is detected.

[0013] Another subject of this utility model: an electric bicycle, including a frame, a front wheel, a rear wheel, and an anti-theft device with a concealed battery lock pin as described above. The front wheel and the rear wheel are rotatably connected to the front and rear sides of the frame, respectively. An electric motor is installed on the rear wheel, and the electric motor is electrically connected to the anti-theft device through a cable.

[0014] A further preferred embodiment of this utility model is: the frame has an upward-facing mounting position near the rear wheel, the battery mounting seat is fixed on the mounting position, and the guide rail is provided on the frame rod at the mounting position.

[0015] Compared with existing technologies, this invention has the following advantages: by placing the locking mechanism near the lower cover, it cannot be accessed from above, and the entry slot of the lower cover is covered and hidden by the battery mounting bracket, blocking the insertion path of tools such as screwdrivers, significantly improving anti-theft performance. The combination of the lower-positioned locking mechanism and the hidden insertion slot provides a significant anti-theft advantage. This technical solution effectively solves the defect in the prior art where "the exposed entry slot makes the locking mechanism easy to pry open." This structure makes rapid theft impractical because the locking mechanism cannot be accessed, thereby greatly reducing the risk of battery theft. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a 3D structural diagram of a battery mounted on a bicycle.

[0018] Figure 2 This is a three-dimensional structural diagram of a standard battery;

[0019] Figure 3 This is one of the three-dimensional structural schematic diagrams of Embodiment 1 of this utility model;

[0020] Figure 4 This is a second three-dimensional structural schematic diagram of Embodiment 1 of this utility model;

[0021] Figure 5 This is a front view of Embodiment 1 of the present utility model;

[0022] Figure 6 This is a schematic diagram of the bottom of the lower cover in Embodiment 1 of this utility model;

[0023] Figure 7 This is a schematic diagram of the guide rail being fixed on the vehicle frame in Embodiment 1 of this utility model;

[0024] Figure 8 This is a schematic diagram of the battery mounting bracket being fixed on the vehicle frame in Embodiment 1 of this utility model.

[0025] In the diagram: 10. Electric bicycle; 11. Frame; 12. Front wheel; 13. Rear wheel; 14. Motor; 15. Battery mounting bracket; 151. Mounting pin; 152. Mounting socket; 16. Cable; 17. Guide rail; 171. Locking hole; 20. Battery box; 21. Sleeve; 211. Top opening; 212. Bottom opening; 213. Side wall; 22. Top cover; 23. Handle; 24. Bottom cover; 241. Battery pin; 242. Battery socket; 243. Edge; 244. Inlet groove; 25. Longitudinal groove; 26. Locking mechanism; 261. Locking pin. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0027] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example 1

[0028] This embodiment mainly describes an anti-theft device with a concealed battery lock pin, as detailed below:

[0029] like Figures 3 to 8 As shown, a concealed battery lock anti-theft device includes a battery housing 20, a locking mechanism 26, a battery mounting base 15 fixed to a vehicle frame 11, and a guide rail 17. The battery housing 20 is part of the battery and is used to house and protect the battery cells. The battery housing 20 consists of a sleeve 21, an upper cover 22, and a lower cover 24. The upper cover 22 and the lower cover 24 respectively cover the top opening 211 and the bottom opening 212 of the sleeve 21, forming a complete battery casing. The battery mounting base 15 is electrically inserted into the bottom of the lower cover 24. The edge 243 of the lower cover 24 extends along the side wall 213 of the sleeve 21 to the upper cover 22, forming a longitudinal groove 25. The edge 243 of the lower cover 24 also has an inlet groove 244 that communicates with the longitudinal groove 25 for the initial insertion of the battery housing 20 onto the guide rail 17. The longitudinal groove 25 slides with the guide rail 17, enabling the battery housing 20 to be guided and installed along the guide rail 17. The locking mechanism 26 is located near the lower cover 24 on the sleeve 21. A lock hole 171 is provided on the guide rail 17. The locking mechanism 26 has a built-in locking pin 261 that can be inserted into the lock hole 171 to lock the battery box 20 onto the guide rail 17. During battery installation, the battery box 20 slides onto the guide rail 17 via the inlet groove 244 and slides along the guide rail 17 until it is electrically connected to the battery mounting base 15. Finally, the locking pin 261 of the locking mechanism 26 is inserted into the lock hole 171 to secure the battery box 20. The battery mounting base 15 completely covers the inlet groove 244, preventing external tools from contacting the locking mechanism 26 through the inlet groove 244. During use, the battery mounting base 15 prevents screwdrivers or similar tools from entering the longitudinal groove 25 from the insertion port, ensuring that the locking pin 261 of the locking mechanism 26 will not be pulled out of the lock hole 171, thereby preventing the battery from being removed from the electric bicycle 10 without unlocking the locking mechanism 26.

[0030] This invention significantly improves anti-theft performance by placing the locking mechanism 26 adjacent to the lower cover 24, making it inaccessible from above. Furthermore, the entry slot 244 of the lower cover 24 is covered and hidden by the battery mounting bracket 15, blocking the insertion path of tools such as screwdrivers. Compared to traditional battery casings (which typically have exposed locking mechanisms and open slots, making them easily damaged by basic tools), the combination of the lower-mounted locking mechanism 26 and the hidden slot provides a significant anti-theft advantage. This technical solution effectively solves the defect in the prior art where "the exposed entry slot 244 makes the locking mechanism 26 easily pried open." This structure makes rapid theft impractical due to the inability to access the locking mechanism 26, thereby greatly reducing the risk of battery theft.

[0031] like Figure 4 and Figure 8 As shown, the bottom of the lower cover 24 has a battery pin 241, and the battery mounting base 15 has a corresponding mounting socket 152, or the bottom of the lower cover 24 has a battery socket 242, and the battery mounting base 15 has a corresponding mounting pin 151. The battery pin 241 and the mounting socket 152 are plugged into each other, or the battery socket 242 and the mounting pin 151 are plugged into each other, to realize the electrical connection between the battery and the frame 11. This structure ensures that the electrical connection is stable and reliable after the battery slides into place, avoiding power outages or sparking caused by poor contact.

[0032] Specifically, the locking mechanism 26 includes a key, a lock cylinder, and a bolt, the bolt being the aforementioned locking pin 261. The user operates the key to turn the lock cylinder, causing the locking pin 261 to extend or retract, thus locking or unlocking the battery compartment 20 and the guide rail 17. This structure is simple, reliable, and easy to operate. The locking pin 261 is directly inserted into the keyhole 171 of the guide rail 17, ensuring a secure lock and preventing the battery from being removed without authorization. Preferably, the key can be pulled out of the lock cylinder when the locking mechanism 26 is in the locked state (locking pin 261 inserted into the keyhole 171) and in the unlocked state (locking pin 261 disengaged from the keyhole 171). This ability to remove the key in both modes enhances the system's practicality and security, ensuring that the user can take the key away after locking or unlocking the housing. The locking structure described above can also be used with other key-driven locks available on the market.

[0033] Specifically, the key is preferably 2.5 mm thick and square in shape. This design balances strength and portability; the square structure prevents the key from rotating or sliding within the lock cylinder, improving operational stability. At the same time, the key's moderate thickness makes it easy to carry and less prone to breakage, meeting the durability requirements for everyday use. The square design also simplifies manufacturing and storage, as its uniform size reduces production complexity.

[0034] like Figure 3As shown, the top of the cover 22 has a handle 23, which makes it easy for users to carry the battery box 20 for installation or removal. The handle 23 is ergonomically designed for comfortable grip and can be folded for storage when not in use, avoiding taking up extra space.

[0035] Specifically, the sleeve 21 contains a fire extinguishing capsule, which is configured to automatically spray fire extinguishing powder onto the battery when an abnormal temperature rise is detected or a threshold is reached. The fire extinguishing capsule effectively suppresses the risk of battery fire, ensuring the safety of users and their property. The fire extinguishing capsule is located near the battery cell, ensuring that the fire extinguishing agent can quickly cover the fire source, improving response speed and fire extinguishing efficiency. Example 2

[0036] This embodiment mainly describes electric bicycles, as follows:

[0037] like Figure 1 As shown, the electric bicycle 10 includes a frame 11, a front wheel 12, a rear wheel 13, and the anti-theft device mentioned in Embodiment 1. The front wheel 12 and the rear wheel 13 are rotatably connected to the front and rear sides of the frame 11, respectively. A motor 14 is mounted on the rear wheel 13, and the motor 14 is electrically connected to the anti-theft device via a cable 16 to achieve electric drive. The anti-theft device is installed in the middle or rear of the frame 11, facilitating battery removal and maintenance, and effectively preventing battery theft through a concealed locking pin structure.

[0038] Specifically, the frame 11 has an upward-facing mounting position near the rear wheel 13, and the battery mounting bracket 15 is fixed in this mounting position. The guide rail 17 is located on the frame rod at the mounting position. This structure allows the battery box 20 to be inserted into the mounting position from top to bottom. The guide rail 17 and the longitudinal groove 25 fit smoothly, facilitating the installation and removal of the battery box 20. Furthermore, after installation, the battery mounting bracket 15 completely covers the inlet groove 244, further enhancing the anti-theft effect.

[0039] In this invention, the battery housing 20 serves as the main outer casing of the battery, designed to physically protect the battery while supporting reliable integration with various vehicle types. It can be made of durable materials such as metal to provide mechanical strength and environmental resistance. Preferably, the smart battery housing is made of 100% aluminum. This concealed battery lock pin anti-theft device is not limited to electric bicycles 10 but is also adaptable to other different types of electric vehicles. The battery housing 20 can be mounted to the vehicle chassis or frame 11 using fasteners such as bolts, brackets, or integrated structural fasteners, ensuring stability during vehicle operation and ease of maintenance when needed.

[0040] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. 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, they should not be construed as limitations on this utility model.

[0041] The above provides a detailed description of the anti-theft device and electric bicycle with a concealed battery lock pin provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A concealed battery lock pin anti-theft device, comprising a battery box, a locking mechanism, and a battery mounting base and guide rail fixed on a vehicle frame, wherein the battery box includes a sleeve, an upper cover and a lower cover respectively covering the top opening and bottom opening of the sleeve, the sleeve being used to accommodate battery cells, and the battery mounting base being electrically connected to the bottom of the lower cover, characterized in that: The lower cover has a longitudinal groove extending from its edge to the upper cover along the side wall of the sleeve. The edge of the lower cover has an inlet groove communicating with the longitudinal groove. The locking mechanism is located on the sleeve near the lower cover. The guide rail has a locking hole. The locking mechanism has a pin that can be inserted into the locking hole to lock the battery box on the guide rail. The battery box is slidably assembled onto the guide rail through the inlet groove and is electrically connected to the battery mounting base by sliding along the guide rail. The inlet groove is covered by the battery mounting base.

2. The anti-theft device with a concealed battery lock pin according to claim 1, characterized in that: The bottom of the lower cover is provided with a battery pin, and the battery mounting base is provided with a battery socket that mates with the battery pin.

3. The anti-theft device with a concealed battery lock pin according to claim 1, characterized in that: The bottom of the lower cover is provided with a battery socket, and the battery mounting base is provided with battery pins that cooperate with the battery socket.

4. The anti-theft device with a concealed battery lock pin according to claim 1, characterized in that: The locking mechanism includes a key, a lock cylinder, and a bolt. The bolt is the aforementioned pin. By operating the key to rotate the lock cylinder, the bolt is pushed into or out of the keyhole to lock or unlock the battery box.

5. The anti-theft device for a concealed battery lock pin according to claim 4, characterized in that: The key is 2.5 mm thick and square in shape.

6. The anti-theft device for a concealed battery lock pin according to claim 1, characterized in that: The top cover is equipped with a handle.

7. The anti-theft device with a concealed battery lock pin according to claim 1, characterized in that: The sleeve contains a fire extinguishing capsule, which is configured to automatically spray fire extinguishing powder onto the battery when an abnormal increase in battery temperature is detected or a predetermined threshold is reached.

8. An electric bicycle, comprising a frame, a front wheel, and a rear wheel, characterized in that: It also includes an anti-theft device with a concealed battery lock pin as described in any one of claims 1 to 7, wherein the front wheel and the rear wheel are rotatably connected to the front and rear sides of the frame, respectively, and an electric motor is installed on the rear wheel, the electric motor being electrically connected to the anti-theft device via a cable.

9. The electric bicycle according to claim 8, characterized in that: The frame has an upward-facing mounting position near the rear wheel, the battery mounting bracket is fixed in the mounting position, and the guide rail is provided on the frame rod at the mounting position.

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