Quick release structure of electric vehicle tire
By using a quick-release structure and the cooperation of elastic blocks and locking platforms to control the torque threshold, the electric bicycle tires can be installed and removed conveniently and efficiently. This solves the problem of difficult-to-control locking force and improves installation efficiency and thread durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XIAOFEIXIA VEHICLE IND CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-12
AI Technical Summary
During the installation and removal of electric bicycle tires, the tightening force is difficult to control, which can lead to stripped threads, damage, or difficulty in removal, thus affecting the installation efficiency of the tires.
It adopts a quick-release structure, including a locking mechanism, a reinforcing mechanism, and quick-release fixtures. By cooperating with the elastic block and the docking slot, the torque threshold is controlled to avoid excessive locking force. Combined with the design of the locking table and the reinforcing parts, the locking and reinforcing disassembly can be completed with a single turn.
It improves tire removal efficiency, avoids damage to the locking structure, and ensures the integrity of the threads and ease of installation.
Smart Images

Figure CN224348671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric bicycle wheel installation technology, specifically to a quick-release structure for electric bicycle tires. Background Technology
[0002] Electric bicycles are a mode of transportation combining electric power and human pedaling. In recent years, they have become increasingly popular worldwide due to their environmental friendliness, convenience, and affordability. Electric bicycles have high instantaneous torque, leading to faster tire wear. Therefore, as a consumable item for riding, electric bicycle tires require regular maintenance or replacement. The wheels of electric bicycles are mostly secured to the front fork structure of the frame using external bolts. The force applied to the wrench during bolt tightening needs to be judged manually during installation. Excessive tightening force can lead to difficulty in disassembly later or even stripped threads, causing the locking structure to fail. Furthermore, conventional tire mounting structures require additional reinforcement after tightening to prevent slippage, affecting installation efficiency. Therefore, we propose a quick-release structure for electric bicycle tires that combines the locking and reinforcement mechanisms, facilitating disassembly while avoiding thread failure due to excessive force during installation. Utility Model Content
[0003] To solve the above-mentioned technical problems, this application provides a quick-release structure for electric vehicle tires, including a wheel rod, a locking mechanism, a reinforcing mechanism, and a quick-release fixture. The locking mechanism is connected to a threaded rod at one end of the wheel rod. The reinforcing mechanism is provided in the locking mechanism. The quick-release fixture is elastically engaged with the locking mechanism. The quick-release fixture is slidably sleeved in the reinforcing mechanism.
[0004] In some embodiments, the locking mechanism comprises a locking platform, a locking ring groove, and a mating groove. The locking platform has a locking ring groove on one side and mating grooves are evenly distributed on the side wall of the locking platform.
[0005] In some embodiments, the mating groove is composed of a side arc surface and a vertical surface, with one side of the inner wall of the mating groove being a side arc surface and the other side of the inner wall of the mating groove being a vertical surface.
[0006] In some embodiments, the reinforcing mechanism comprises a threaded ramp, an oblique slot, a reinforcing member, an internal spring, and a locking spring, wherein the threaded ramp is threadedly connected to the locking ring groove.
[0007] In some embodiments, the oblique slots are evenly formed in the locking platform, a reinforcing member is slidably connected in the oblique slots, an internal retraction spring is provided between the reinforcing member and the locking platform, the reinforcing member is slidably connected to the wedge-shaped inner wall of the threaded oblique platform, and a locking spring is provided at one end of the reinforcing member.
[0008] In some embodiments, the quick-release fixture comprises a screwing table, a telescopic groove, a telescopic spring, an elastic block, an outer sleeve, a connecting wire, a locking hole, a locking frame, a locking spring, a fixing cap, and a screwing handle. The screwing table is sleeved on the locking table, and a fixing cap is provided on one side of the screwing table. The guide post on the fixing cap is slidably connected to the groove on the threaded inclined table, and a screwing handle is provided at the bottom of the screwing table.
[0009] In some embodiments, the inner wall of the turning table is evenly provided with telescopic grooves, and a telescopic spring is provided in the telescopic groove. One end of the telescopic spring is fixedly connected to an elastic block, and the elastic block is slidably connected in the telescopic groove. One end of the elastic block is engaged in the mating groove. A connecting line is provided on the elastic block, and one end of the connecting line is fixed to the inner wall of the outer sleeve. The outer sleeve is rotatably connected to the turning table. A locking frame is slidably connected to one side of the turning table, and a locking spring is provided between the locking frame and the turning table. A locking hole is provided on the side of the elastic block near the locking frame.
[0010] This utility model has at least the following beneficial effects:
[0011] 1. This utility model uses an elastic locking block in a quick-release fixture to cooperate with the docking slot on the locking platform. During tire installation using the quick-release fixture, turning the handle drives the turning platform to rotate. At this time, the elastic locking block contacts the side arc surface in the docking slot and is subjected to force. The torque generated during rotation will act obliquely on the elastic locking block through the side arc surface, thereby causing the elastic locking block to squeeze the telescopic spring and slide into the telescopic slot. When the torque exceeds the threshold, the elastic locking block completely disengages from the docking slot and is fixed in the telescopic slot with the cooperation of the locking bracket and the locking hole. This avoids excessive locking force that would make disassembly difficult later or directly cause thread stripping, resulting in failure and damage to the locking structure.
[0012] 2. This utility model uses a locking platform as the locking body of the wheel. A locking ring groove is opened on the locking platform to support the threaded ramp. The inclined slot in the locking platform supports the reinforcement and locking spring. The spring is contracted in the inclined slot by an internal spring. When the elastic block is completely disengaged from the mating groove, the screwing platform slides on the locking platform. At the same time, the screwing handle continues to drive the fixing cap and the threaded ramp to rotate. As the threaded ramp moves closer to the inside of the locking platform, it will squeeze the reinforcement out through the wedge-shaped inner wall, causing the locking spring to press against the wheel rod to achieve the reinforcement action. When removing, the locking frame is pulled outward while the screwing handle is reversed to release the locking of the elastic block. Then the locking spring is disengaged from the wheel rod to release the reinforcement. Subsequently, the elastic block is pushed into the mating groove and the torque is transmitted through the vertical plane to remove the locking platform. The locking mechanism and the reinforcement mechanism can be fixed and removed at the same time with a single screwing, which improves the tire removal efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0015] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;
[0016] Figure 4 This is a partial structural schematic diagram of the present invention;
[0017] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;
[0018] Figure 6 This is a partial exploded view of Embodiment 2 of the present invention.
[0019] In the diagram: 1-Wheel rod; 2-Locking mechanism; 3-Reinforcing mechanism; 4-Quick release fixture; 21-Locking table; 22-Locking ring groove; 23-Matching groove; 31-Threaded inclined table; 32-Angled slot; 33-Reinforcing part; 34-Inner spring; 35-Locking spring; 41-Turning table; 42-Telescopic groove; 43-Telescopic spring; 44-Elastic block; 45-Outer sleeve; 46-Connecting wire; 47-Locking hole; 48-Locking frame; 49-Locking spring; 50-Fixing cap; 51-Turning handle; 101-Fixing plate; 102-Screw; 103-Rotating table; 231-Side arc surface; 232-Vertical surface. Detailed Implementation
[0020] 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.
[0021] Example 1:
[0022] Please see Figure 1-4This utility model provides a technical solution: a quick-release structure for an electric vehicle tire, including a wheel rod 1, a locking mechanism 2, a reinforcing mechanism 3, and a quick-release fixture 4. The locking mechanism 2 is connected to a threaded rod at one end of the wheel rod 1. The reinforcing mechanism 3 is provided in the locking mechanism 2. The quick-release fixture 4 is elastically engaged with the locking mechanism 2 and is slidably sleeved in the reinforcing mechanism 3. The quick-release fixture 4 is independent of the installed electric vehicle tire and is used only during installation and disassembly. The wheel rod 1 is used to connect the bearing to support the electric vehicle tire. After the locking mechanisms 2 on both sides are locked, the electric vehicle tire is located at the center of the entire front fork structure.
[0023] The locking mechanism 2 consists of a locking platform 21, a locking ring groove 22, and a mating groove 23. The locking platform 21 has a locking ring groove 22 on one side, and mating grooves 23 are evenly distributed on its side wall. Each mating groove 23 consists of a side arc surface 231 and a vertical surface 232. One side of the inner wall of the mating groove 23 is the side arc surface 231, and the other side is the vertical surface 232. The reinforcing mechanism 3 consists of a threaded ramp 31, an inclined slot 32, a reinforcing member 33, an internal spring 34, and a locking spring 35. The threaded ramp 31 is threadedly connected to the locking ring groove 22. In the locking platform 21, oblique slots 32 are evenly distributed. A reinforcing member 33 is slidably connected in the oblique slots 32. An internal retraction spring 34 is provided between the reinforcing member 33 and the locking platform 21. The reinforcing member 33 is slidably connected to the wedge-shaped inner wall of the threaded inclined platform 31. A locking spring 35 is provided at one end of the reinforcing member 33. The locking platform 21 serves as the locking body of the wheel. A locking ring groove 22 is provided on the locking platform 21 to support the threaded inclined platform 31. The reinforcing member 33 and the locking spring 35 supported by the oblique slots 32 in the locking platform 21 are retracted in the oblique slots 32 by the internal retraction spring 34.
[0024] The quick-release fixture 4 consists of a screwing table 41, a telescopic groove 42, a telescopic spring 43, an elastic catch 44, an outer sleeve 45, a connecting wire 46, a locking hole 47, a locking bracket 48, a locking spring 49, a fixing cap 50, and a screwing handle 51. The screwing table 41 is fitted onto the locking table 21. A fixing cap 50 is provided on one side of the screwing table 41. The guide post on the fixing cap 50 is slidably connected to the groove on the threaded inclined platform 31. A screwing handle 51 is provided at the bottom of the screwing table 41. Telescopic grooves 42 are evenly distributed on the inner wall of the screwing table 41. A telescopic spring 43 is provided in the telescopic groove 42. One end of the telescopic spring 43 is fixedly connected to an elastic catch. Block 44, the elastic locking block 44 is slidably connected in the telescopic groove 42, one end of the elastic locking block 44 is engaged in the mating groove 23, the elastic locking block 44 is provided with a connecting line 46, one end of the connecting line 46 is fixed to the inner wall of the outer sleeve 45, the outer sleeve 45 is rotatably connected to the turning table 41, a locking frame 48 is slidably connected to one side of the turning table 41, a locking spring 49 is provided between the locking frame 48 and the turning table 41, the elastic locking block 44 has a locking hole 47 on the side near the locking frame 48, the elastic locking block 44 in the quick release tool 4 is used to engage with the mating groove 23 on the locking table 21, and the quick release tool 4 is used to enter During tire installation, turning the handle 51 rotates the turning table 41. At this time, the elastic locking block 44 contacts the side arc surface 231 in the mating groove 23 and is subjected to force. The torque generated during rotation acts obliquely on the elastic locking block 44 through the side arc surface 231, causing the elastic locking block 44 to squeeze the telescopic spring 43 and slide into the telescopic groove 42. When the torque exceeds the threshold, the elastic locking block 44 completely disengages from the mating groove 23 and is fixed in the telescopic groove 42 with the cooperation of the locking bracket 48 and the locking hole 47. This prevents excessive locking force from causing difficulty in disassembly later or directly causing thread stripping and damage to the locking structure. When the elastic locking block 44 is completely disengaged... After disengaging from the docking slot 23, the screwing table 41 slides onto the locking table 21. At the same time, the screwing handle 51 continues to drive the fixing cap 50 and the threaded ramp 31 to rotate. As the threaded ramp 31 moves closer to the inside of the locking table 21, it will squeeze the reinforcing part 33 through the wedge-shaped inner wall and slide out, causing the locking spring 35 to press against the wheel rod 1 to achieve the reinforcement action. When removing, while reversing the screwing handle 51, the locking frame 48 is pulled out to release the lock on the elastic block 44. Then, the locking spring 35 is disengaged from the wheel rod 1 to release the reinforcement. Subsequently, the elastic block 44 is pushed into the docking slot 23 and the torque is transmitted through the vertical surface 232 to remove the locking table 21.
[0025] Example 2:
[0026] Please see Figure 5-6This utility model provides a technical solution: a quick-release structure for an electric vehicle tire, including a wheel rod 1, a locking mechanism 2, a reinforcing mechanism 3, and a quick-release fixture 4. The locking mechanism 2 is connected to a threaded rod at one end of the wheel rod 1. The reinforcing mechanism 3 is provided within the locking mechanism 2. The quick-release fixture 4 is elastically engaged with the locking mechanism 2 and slidably sleeved within the reinforcing mechanism 3. Based on embodiment one, a fixing plate 101, a screw 102, and a rotating platform 103 are added. The quick-release fixture 4 consists of a screwing platform 41, a telescopic groove 42, a telescopic spring 43, an elastic locking block 44, an outer sleeve 45, a connecting wire 46, a locking hole 47, a locking frame 48, a locking spring 49, a fixing cap 50, and a screwing handle 51. The screwing platform 41 is sleeved on the locking platform 21. On one side of the turning table 41, a fixed cap 50 is rotatably attached. The guide post on the fixed cap 50 is slidably connected to the groove on the threaded inclined platform 31. A turning handle 51 is provided at the bottom of the turning table 41. Telescopic grooves 42 are evenly distributed on the inner wall of the turning table 41. Telescopic springs 43 are installed in the telescopic grooves 42. One end of the telescopic spring 43 is fixedly connected to an elastic block 44. The elastic block 44 is slidably connected in the telescopic groove 42. One end of the elastic block 44 is engaged in the mating groove 23. A connecting line 46 is provided on the elastic block 44. One end of the connecting line 46 is fixed to the inner wall of the outer sleeve 45. The outer sleeve 45 is rotatably connected to the turning table 41. A locking frame 48 is slidably connected to one side of the turning table 41. The locking frame 48 and the turning table 41 are connected in a slidable manner. A locking spring 49 is provided between the locking elements 1 and 2. A locking hole 47 is provided on the side of the elastic block 44 near the locking frame 48. A screw 102 is connected to the screw handle 51 by a threaded connection. A rotating platform 103 is provided at the bottom end of the screw 102. A fixing plate 101 is rotatably connected to the top end of the screw 102 through the screw platform 41. The fixing plate 101 is pressed tightly against the fixing cap 50. By changing the fixing cap 50 and the screw platform 41 in Embodiment 1 to a rotating connection structure, the screw 102 threaded in the screw handle 51 can be rotated through the rotating platform 103. This, combined with the fixing plate 101 at the top end of the screw 102 pressing tightly against the fixing cap 50, achieves mutual fixation between the fixing cap 50 and the screw platform 41. During installation, the fixing cap 50 and the screw platform 41 are fixed together. The platforms 41 are locked together. During rotation, the locking platform 21 can press the tire tightly. When the rotation force is too large, the elastic block 44 disengages from the docking groove 23. Then, while the locking platform 21 stops rotating, the fixing cap 50 drives the threaded inclined platform 31 to continue rotating. The threaded inclined platform 31 then squeezes the reinforcing member 33 and the locking spring 35 to clamp and lock the wheel rod 1. When the tire is removed, the fixing cap 50 is put on the threaded inclined platform 31. After rotation, the locking spring 35 disengages from the wheel rod 1. Then, the fixing plate 101 locks the fixing cap 50. The screwing platform 41 is rotated independently to make the elastic block 44 put on the docking groove 23. Then, the fixing plate 101 locks the fixing cap 50 again. The screwing platform 41 is rotated to remove the entire locking platform 21.
Claims
1. A quick-release structure for an electric vehicle tire, comprising a wheel rod (1), a locking mechanism (2), a reinforcing mechanism (3), and a quick-release fixture (4), characterized in that: A locking mechanism (2) is connected to the threaded rod at one end of the wheel rod (1). A reinforcing mechanism (3) is provided in the locking mechanism (2). A quick-release fixture (4) is elastically engaged on the locking mechanism (2). The quick-release fixture (4) is slidably sleeved in the reinforcing mechanism (3).
2. The quick-release structure for electric vehicle tires according to claim 1, characterized in that: The locking mechanism (2) consists of a locking platform (21), a locking ring groove (22) and a docking groove (23). The locking platform (21) has a locking ring groove (22) on one side and docking grooves (23) are evenly provided on the side wall of the locking platform (21).
3. The quick-release structure for electric vehicle tires according to claim 2, characterized in that: The docking slot (23) is composed of a side arc surface (231) and a vertical surface (232). One side of the inner wall of the docking slot (23) is the side arc surface (231), and the other side of the inner wall of the docking slot (23) is the vertical surface (232).
4. The quick-release structure for electric vehicle tires according to claim 1, characterized in that: The reinforcement mechanism (3) consists of a threaded ramp (31), an inclined slot (32), a reinforcement part (33), an internal spring (34), and a locking spring (35). The threaded ramp (31) is connected to the locking ring groove (22) by a threaded connection.
5. The quick-release structure for electric vehicle tires according to claim 4, characterized in that: The oblique slots (32) are evenly opened in the locking platform (21). A reinforcing member (33) is slidably connected in the oblique slots (32). An internal retraction spring (34) is provided between the reinforcing member (33) and the locking platform (21). The reinforcing member (33) is slidably connected to the wedge-shaped inner wall of the threaded oblique platform (31). A locking spring (35) is provided at one end of the reinforcing member (33).
6. The quick-release structure for electric vehicle tires according to claim 1, characterized in that: The quick-release fixture (4) consists of a screwing table (41), a telescopic groove (42), a telescopic spring (43), an elastic block (44), an outer sleeve (45), a connecting line (46), a locking hole (47), a locking frame (48), a locking spring (49), a fixing cap (50), and a screwing handle (51). The screwing table (41) is fitted onto the locking table (21). A fixing cap (50) is provided on one side of the screwing table (41). The guide post on the fixing cap (50) is slidably connected to the groove on the threaded inclined platform (31). A screwing handle (51) is provided at the bottom of the screwing table (41).
7. The quick-release structure for an electric vehicle tire according to claim 6, characterized in that: The inner wall of the turning table (41) is evenly provided with telescopic grooves (42), and a telescopic spring (43) is provided in the telescopic groove (42). One end of the telescopic spring (43) is fixedly connected to an elastic block (44). The elastic block (44) is slidably connected in the telescopic groove (42). One end of the elastic block (44) is engaged in the docking groove (23). A connecting line (46) is provided on the elastic block (44). One end of the connecting line (46) is fixed on the inner wall of the outer sleeve (45). The outer sleeve (45) is rotatably connected to the turning table (41). A locking frame (48) is slidably connected to one side of the turning table (41). A locking spring (49) is provided between the locking frame (48) and the turning table (41). A locking hole (47) is provided on the side of the elastic block (44) near the locking frame (48).