Anti-theft locks for electric bicycles and electric bicycles
By designing an integrated structure of the ring lock body with the battery box and the frame, the problem of existing electric bicycles being unable to effectively protect the battery is solved. This allows the same lock to lock both the battery and the entire vehicle, reducing costs and complexity while improving anti-theft strength and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIWU RUILU IMPORT & EXPORT CO LTD
- Filing Date
- 2025-09-19
- Publication Date
- 2026-06-30
Smart Images

Figure CN224427641U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric bicycle technology, and in particular to anti-theft locks for electric bicycles and electric bicycles themselves. Background Technology
[0002] In recent years, electric bicycles have become an important mode of transportation for short-distance urban travel due to their advantages such as zero emissions, low cost, and convenient access. Their power core generally uses a detachable battery box, allowing users to remove the battery for indoor charging, which is both convenient and saves public space. Meanwhile, to prevent theft, electric bicycles are usually equipped with U-locks, which lock the wheels to the frame or a fixed object to prevent theft.
[0003] In existing technologies, U-locks can only lock the wheels and frame, failing to effectively protect the more valuable battery. Users are forced to install additional locks to secure the battery and prevent theft. Adding a separate lock for battery theft protection not only increases cost and operational complexity but also makes the additional lock inconvenient to carry and store, impacting the user experience. Therefore, a battery lock structure is needed that can selectively lock either the entire vehicle or the battery. Utility Model Content
[0004] This utility model addresses the problem that existing electric bicycles can only be locked with U-locks, but cannot prevent the theft of the more valuable battery. The technical problem to be solved by this utility model is to provide an anti-theft lock for electric bicycles and an electric bicycle to solve the above problem.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problem is: an anti-theft lock for electric bicycles, characterized in that it includes:
[0006] A battery housing is installed on the battery mounting position on the frame of an electric bicycle. The battery housing encapsulates a battery module and has a transverse through-channel on the battery housing.
[0007] Ring-shaped lock body, used to lock the battery box or vehicle frame;
[0008] The battery mounting position on the vehicle frame is provided with corresponding lock holes on the left and right sides, and the lock holes are coaxially arranged with the channel on the battery box.
[0009] The ring-shaped lock body can selectively pass through a lock hole on one side, a channel in the battery box, and a lock hole on the other side to lock the battery box onto the frame; or, the ring-shaped lock body can selectively lock the wheels of the electric bicycle to the frame, or lock the wheels to a fixed object.
[0010] A further preferred embodiment of this utility model is: the annular lock body is composed of a U-shaped bent lock rod and a detachable lock seat, wherein the lock seat can be locked with the open end of the lock rod to close the U-shaped opening into an annular shape.
[0011] A further preferred embodiment of this utility model is: the rear seat frame of the vehicle frame has two parallel horizontal beams extending along the length of the vehicle body;
[0012] The two horizontal beams are respectively provided with a first slide rail and a second slide rail along their length;
[0013] The two arms of the locking rod can be inserted into the first slide rail and the second slide rail respectively, and locked by the locking seat to realize the storage of the ring lock body in the rear seat frame.
[0014] A further preferred embodiment of this utility model is that the channel on the battery box is located on the upper middle side of the battery box.
[0015] A further preferred embodiment of this utility model is that the axis of the channel is consistent with the left-right direction of the vehicle frame and perpendicular to the length direction of the vehicle frame.
[0016] A further preferred embodiment of this utility model is that the battery mounting position is located between the saddle and the rear seat frame of the vehicle frame.
[0017] Another subject of this utility model: an electric bicycle, including a frame and the anti-theft lock described above.
[0018] A further preferred embodiment of this utility model is: the rear seat frame on the vehicle frame has a mounting plate and a cross plate located between two horizontal beams, the mounting plate serves as the end of the rear seat frame, and its edge is a curved surface that matches the bending part of the annular lock body, and the mounting plate and the cross plate are reserved with connection holes.
[0019] A further preferred embodiment of this utility model is: the rear seat frame of the vehicle frame is equipped with a seat cushion, a child seat, a storage box, or a storage basket by means of a connecting hole.
[0020] Compared with the prior art, the present invention has the following advantages:
[0021] 1. By integrating the structure of the ring lock body, battery box, and frame, the same ring lock body can pass through the horizontal channel of the battery box and the lock hole of the frame to achieve first-level anti-theft of the battery, and can also pass through the wheel and the frame or fixed object to achieve whole-vehicle anti-theft, truly achieving "one lock for two purposes", eliminating the need for additional locks, reducing the overall cost of the vehicle and the complexity of use.
[0022] 2. The lock holes on the left and right sides of the battery box are arranged coaxially with the box channel. The ring lock body passes through the frame and the battery box to form a closed force ring. Prying in any direction will not make the box detach. The anti-theft strength is significantly higher than the local restraint of the battery by traditional external locks.
[0023] 3. The two horizontal beams of the rear seat frame have a through first and second slide rail. When not in use, the ring lock can slide into the slide rail and lock completely hidden inside the rear seat frame. It does not occupy the seat bucket, basket or extra external space, has a simple appearance, and avoids the risk of shaking, abnormal noise and bumps during driving. Attached Figure Description
[0024] 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.
[0025] Figure 1 This is a three-dimensional structural diagram of the ring-shaped lock body of this utility model locking the battery box onto the vehicle frame;
[0026] Figure 2 This is a three-dimensional structural diagram of the ring lock body of this utility model being housed on the rear seat frame;
[0027] Figure 3 This is an exploded view of the ring-shaped lock body, battery box, and frame of this utility model;
[0028] Figure 4 This is a three-dimensional structural diagram of the vehicle frame of this utility model;
[0029] Figure 5 This is a three-dimensional structural diagram of the battery box of this utility model;
[0030] Figure 6 This is a three-dimensional structural diagram of the seat cushion of this utility model installed on the vehicle frame;
[0031] Figure 7 This is a three-dimensional structural diagram of the child seat of this utility model installed on the vehicle frame;
[0032] Figure 8 This is a three-dimensional structural diagram of the storage box of this utility model installed on the vehicle frame;
[0033] Figure 9 This is a three-dimensional structural diagram of the storage basket of this utility model installed on the vehicle frame.
[0034] In the diagram: 1. Battery housing; 2. Frame; 3. Battery mounting position; 4. Passageway; 5. Ring lock body; 51. Locking bar; 52. Lock seat; 6. Lock hole; 7. Rear seat frame; 71. Horizontal beam; 72. First slide rail; 73. Second slide rail; 74. Mounting plate; 75. Horizontal plate; 76. Connecting hole; 8. Saddle; 9. Seat cushion; 10. Child seat; 11. Storage box; 12. Storage basket. Detailed Implementation
[0035] 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.
[0036] 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
[0037] This embodiment mainly describes the anti-theft lock for electric bicycles. The anti-theft lock in this embodiment integrates the ring lock body 5, the battery box 1, and the frame 2 into a switchable locking system. This allows the same lock to lock both the battery and the entire bicycle, eliminating the need for additional locks, reducing the overall cost and complexity of use, and completely solving the storage problems of the battery box 1 and the lock body. Details are as follows:
[0038] like Figures 1 to 5As shown, the anti-theft lock for an electric bicycle includes a ring-shaped lock body 5 and a battery box 1. The ring-shaped lock body 5 consists of a U-shaped curved lock rod 51 and a detachable lock seat 52. The lock seat 52 can slide into the open end of the lock rod 51 and rotate to lock, thereby closing the U-shaped opening of the lock rod 51 into a ring shape. The ring-shaped lock body 5 can also be a flexible steel cable lock. In this utility model, the ring-shaped lock body 5 is preferably composed of a U-shaped curved lock rod 51 and a detachable lock seat 52. This utility model is described using a U-shaped curved lock rod 51 and a detachable lock seat 52, but in specific implementations, it is not limited to a U-shaped curved lock rod 51 and a detachable lock seat 52; other ring-shaped lock bodies 5 are also applicable. The frame 2 of the electric bicycle has a battery mounting position 3 in the area of the saddle 8 near the pedals. The battery mounting position 3 is a sunken box shape, and there is a lock hole 6 on each of the left and right sides of the battery mounting position 3. The battery box 1 is a pull-out drawer-shaped structure that encapsulates the battery module. A transverse channel 4 runs horizontally through the upper side of the box. The axis of channel 4 aligns with the left-right direction of the frame 2, and the openings at both ends of channel 4 are coaxial with the lock holes 6 on the frame 2. When the user needs to lock the battery box after leaving, one end of the locking rod 51 is inserted through one lock hole 6, passes through the entire channel 4 of the battery box 1, and exits through the other lock hole 6. Finally, the lock seat 52 is engaged at the end opening of the locking rod 51, and the ring lock body 5 securely locks the battery box 1 to the frame 2. Prying in any direction will not detach the box, achieving the highest level of battery anti-theft protection. When the user needs to lock the entire vehicle, the lock seat 52 is removed, and the locking rod 51 of the ring lock body 5 is instead inserted through the rear wheel and frame 2, locking the tire to the frame 2 and achieving full vehicle anti-theft protection. Meanwhile, the ring lock body 5 can lock the bicycle to the roadside fence. One lock can lock the whole bicycle or the battery, allowing users to choose according to their actual needs.
[0039] like Figure 1 and Figure 5 As shown, the rear seat frame 7 of the electric bicycle frame 2 includes two parallel horizontal beams 71 extending along the length of the bicycle body and a crossbeam disposed between the two horizontal beams 71. A first slide rail 72 and a second slide rail 73 are provided inside the two horizontal beams 71 along their length. The first slide rail 72 and the second slide rail 73 completely penetrate the horizontal beams 71, as shown... Figure 2As shown, the two arms of the ring lock body 5 can be inserted into the same end of the two slide rails and slid out from the other end. When the ring lock body 5 is not performing a locking function, the user can insert the two arms of the locking rod 51 into the first slide rail 72 and the second slide rail 73 respectively until the lock seat 52 abuts against the end of the horizontal beam 71. At this time, the ring lock body 5 is completely hidden inside the rear seat frame 7, neither exposed nor occupying the space of the basket or seat bucket, with a simple appearance. At the same time, it prevents the lock body from shaking and making abnormal noises while driving, solving the problem of inconvenience in carrying and storing traditional U-locks. After the ring lock body 5 is stored on the rear seat frame 7, it forms part of the rear seat frame 7, enhancing the overall support strength of the rear seat frame 7. In the above, the two arms of the ring lock body 5 are the two parallel sections of the locking rod 51.
[0040] like Figure 5 As shown, to ensure both safety and ease of operation when the arm of the ring lock body 5 passes through the battery box 1, the channel 4 is designed on the upper-middle side of the box. This height avoids the battery cells and circuit boards inside the battery while being close to the top cover of the battery box 1. This ensures that the arm of the ring lock body 5 does not interfere with battery heat dissipation when passing through, and also allows the user to easily observe the correspondence between the lock hole 6 and the channel 4 by crouching down, reducing the difficulty of blind insertion and improving locking efficiency.
[0041] Specifically, the axis of channel 4 is aligned with the left-right direction of frame 2 and perpendicular to the length direction of frame 2. Correspondingly, the two locking holes 6 are located on the left and right sides of frame 2, respectively. The perpendicularity of the axis of channel 4 to the length direction of frame 2 ensures that the locking arm is subjected to symmetrical force during insertion, and the battery box is subjected to uniform force, preventing the battery box 1 from tilting or the locking holes 6 from being worn due to force on one side. The symmetrical design of the left and right locking holes 6 also makes it easy for users to complete the locking action from either side of the vehicle, further improving the convenience of use.
[0042] Specifically, the battery mounting position 3 is located between the frame 2, the saddle 8, and the rear seat frame 7. This position is above the center of gravity of the entire vehicle and close to the seat, which not only makes it convenient for users to take out and put in the battery, but also distributes the weight of the battery evenly between the front and rear wheels, ensuring riding stability. Example 2
[0043] This embodiment mainly describes electric bicycles, as follows:
[0044] like Figures 1 to 5As shown, the vehicle includes a frame 2, on which a battery mounting position 3 is provided for installing the battery. This battery mounting position 3 is a sunken box shape. For convenient daily battery access, the battery mounting position 3 is preferably located between the saddle 8 and the rear seat frame 7 of the frame 2. A locking hole 6 is opened on each of the left and right sides of the battery mounting position 3. The battery housing 1 is detachably installed inside the battery mounting position 3. The battery housing 1 has a channel 4, which is preferably located on the upper middle side of the battery housing. The axis of the channel 4 is consistent with the left-right direction of the frame 2 and perpendicular to the length direction of the frame 2. Locking holes 6 are opened on the left and right side walls of the battery mounting position 3, coaxial with the openings at both ends of the channel 4. Users can insert one end of the locking rod 51 into the channel 4 from the lock hole 6 on one side and out from the lock hole 6 on the opposite side, and then lock the battery box onto the frame 2 by cooperating with the locking rod 51 through the lock seat 52. Alternatively, the ring lock body 5 can be pulled out and used directly to lock the rear wheel to the frame 2, achieving the goal of "one lock per vehicle" to protect both the battery and the entire vehicle, truly solving the pain points of "high cost of additional locks and inconvenience in carrying and storing" in the background technology.
[0045] like Figure 1 and Figure 5 As shown, the frame 2 has a rear seat frame 7 extending above the rear wheel. The rear seat frame 7 is composed of two parallel horizontal beams 71 arranged along the length of the vehicle body. The two horizontal beams 71 are hollow inside, forming a first slide rail 72 and a second slide rail 73. When the ring lock body 5 is not used to lock the battery or wheels, the user can slide both ends of the ring lock body 5 into the two slide rails respectively and lock them through the horizontal beams, so that the ring lock body 5 is stably stored in the rear seat frame 7. At the same time, the stored ring lock body 5 is integrated with the frame 2, with a simple appearance, avoiding the risk of bumps and knocks from external locks, and making the overall shape of the vehicle more streamlined and beautiful.
[0046] In this utility model, the detachable connection of the battery box 1 can be a screw connection or a snap-fit connection.
[0047] In this utility model, in order to diversify the functions of the bicycle and meet people's normal needs, such as... Figure 1 , Figure 3 and Figure 4 As shown, a mounting plate 74 and a cross plate 75 are provided on the rear seat frame 7 on the frame 2, located between two horizontal beams 71. The mounting plate 74 serves as the end of the rear seat frame 7, and its edge is a curved surface that matches the bend of the annular lock body 5. Connection holes are pre-drilled on the mounting plate 74 and the cross plate 75, such as... Figures 6 to 9As shown, the connecting hole 76 can be used to install other items, such as a seat cushion 9, a child seat 10, a storage box 11, or a storage basket 12. The rear seat frame 7 of the frame 2 can selectively install a seat cushion 9, a child seat 10, a storage box 11, or a storage basket 12 through the connecting hole 76. Specifically, the seat cushion 9, the child seat 10, the storage box 11, and the storage basket 12 are all provided with mounting holes corresponding to the connecting hole 76. When one of the seat cushion 9, the child seat 10, the storage box 11, and the storage basket 12 is installed on the rear seat frame 7, the mounting hole and the connecting hole 76 are aligned and fixed with bolts and nuts.
[0048] 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.
[0049] The anti-theft lock for electric bicycles and the electric bicycle provided by this utility model have been described in detail above. 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. An anti-theft lock for an electric bicycle, characterized by, include: A battery housing is installed on the battery mounting position on the frame of an electric bicycle. The battery housing encapsulates a battery module and has a transverse through-channel on the battery housing. Ring-shaped lock body, used to lock the battery box or vehicle frame; The battery mounting position on the vehicle frame is provided with corresponding lock holes on the left and right sides, and the lock holes are coaxially arranged with the channel on the battery box. The ring-shaped lock body can selectively pass through a lock hole on one side, a channel in the battery box, and a lock hole on the other side to lock the battery box onto the frame; or, the ring-shaped lock body can selectively lock the wheels of the electric bicycle to the frame, or lock the wheels to a fixed object.
2. The anti-theft lock for an electric bicycle according to claim 1, characterized in that: The ring lock body consists of a U-shaped bent locking rod and a detachable locking seat. The locking seat can be locked with the open end of the locking rod to close the U-shaped opening into a ring.
3. The anti-theft lock for an electric bicycle according to claim 2, characterized in that: The rear seat frame of the vehicle frame has two parallel horizontal beams extending along the length of the vehicle body. The two horizontal beams are respectively provided with a first slide rail and a second slide rail along their length; The two arms of the locking rod can be inserted into the first slide rail and the second slide rail respectively, and locked by the locking seat to realize the storage of the ring lock body in the rear seat frame.
4. The anti-theft lock for an electric bicycle according to claim 1, characterized in that: The channel on the battery box is located on the upper middle side of the battery box.
5. The anti-theft lock for an electric bicycle according to claim 1, characterized in that: The axis of the channel is aligned with the left-right direction of the vehicle frame and is perpendicular to the length direction of the vehicle frame.
6. The anti-theft lock for an electric bicycle according to claim 1, characterized in that: The battery mounting position is located between the saddle and the rear seat frame of the vehicle frame.
7. An electrically powered bicycle, characterized in that: Includes the vehicle frame and the anti-theft lock as described in any one of claims 1-6.
8. An electric bicycle according to claim 7, characterized in that: The rear seat frame on the vehicle frame has a mounting plate and a cross plate located between two horizontal beams. The mounting plate serves as the end of the rear seat frame, and its edge is a curved surface that matches the bend of the annular lock body. Connection holes are reserved on the mounting plate and the cross plate.
9. An electric bicycle according to claim 7, characterized in that: The rear seat frame of the vehicle frame can be fitted with a seat cushion, child seat, storage box or storage basket via connecting holes.