电动自行车车架折叠结构的防松动锁定机构
By installing locking pins and buckles in the seat and headstock of the electric bicycle frame, the problem of loose folding structure of the frame is solved, achieving stable locking and improving safety and stability during use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN SHUNDE ZHIQUDONG E-COMMERCE CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
Loose locking mechanisms in the folding structure of electric bicycle frames pose a safety hazard, affect stability and lifespan, and may even lead to structural fractures.
Locking pins and buckles are installed on the seat and head of the electric bicycle frame. The folding structure is stably locked by the locking pins engaging with the connecting block and the frame body, and by the second buckle engaging with the mounting step.
It improves the stability and safety of the folding structure, prevents loosening, extends the service life of the frame, and enhances the convenience and stability of locking.
Smart Images
Figure CN224511339U_ABST
Abstract
Claims
1. A loosening prevention locking mechanism of an electric bicycle frame folding structure, characterized by, Includes a frame body (100), on which a seat (200) and a front end (300) are provided, and both the front end (300) and the seat (200) can be folded onto the frame body (100); The seat cushion (200) includes a seat cushion (220), a first connecting rod (210), and a connecting block (230). The connecting block (230) is connected to the frame body (100). The bottom end of the first connecting rod (210) is rotatably connected to the connecting block (230). The seat cushion (220) is located on the top end of the first connecting rod (210). A locking pin is provided on the first connecting rod (210). The locking pin passes through the connecting block (230) and locks into the frame body (100). The front of the vehicle (300) includes a handlebar (320) and a second connecting rod (310). An installation step (110) is provided on the frame body (100). The bottom end of the second connecting rod (310) is rotatably connected to the installation step (110). The top end of the second connecting rod (310) is connected to the handlebar (320). A first fastener (160) is provided on the installation step (110). A second fastener (330) is provided on the outer wall of the second connecting rod (310). The second fastener (330) is locked in place with the first fastener (160).
2. The anti-loosening locking mechanism of the electric bicycle frame folding structure according to claim 1, characterized in that, A through slot (120) is provided on both sides of the frame body (100) corresponding to the connecting block (230). A fixing block (130) is provided on both sides of the frame body (100) corresponding to the through slot (120). The connecting block (230) has a through slot (120) on the same side on both sides and is connected to the fixing block (130).
3. The anti-loosening locking mechanism of the electric bicycle frame folding structure according to claim 2, characterized in that, The fixing block (130) is provided with a plug groove, the connecting block (230) is inserted into the plug groove, and the fixing block (130) is provided with a plurality of first fixing screws (140), the first fixing screws (140) extend into the plug groove and pass through the connecting block (230) and are screwed to the inner wall of the plug groove for fixation.
4. The anti-loosening locking mechanism of the electric bicycle frame folding structure according to any one of claims 1-3, characterized in that, A first hinge shaft (270) is fixed at the top of the connecting block (230), and a connecting frame (240) is provided at the bottom of the first connecting rod (210). The connecting frame (240) is rotatably connected to the first hinge shaft (270).
5. The anti-loosening locking mechanism of the electric bicycle frame folding structure according to claim 4, characterized in that, A locking pin (250) is provided on the connecting frame (240). The bottom end of the locking pin (250) passes through the connecting frame (240) and the connecting block (230) and locks with the locking hole provided on the frame body (100).
6. The anti-loosening locking mechanism of the electric bicycle frame folding structure according to claim 5, wherein, A limiting screw (260) is provided on any side wall of the connecting frame (240). The limiting screw (260) is inserted into the connecting frame (240) from the side wall of the connecting frame (240), and the locking pin (250) extends out from the other end of the connecting frame (240) and is screwed to the limiting nut.
7. The anti-loosening locking mechanism of the electric bicycle frame folding structure according to any one of claims 1-3, characterized in that, A second hinge shaft (150) is provided on the mounting step (110), and the first buckle (160) is rotatably connected to the second hinge shaft (150).
8. The anti-loosening locking mechanism of the electric bicycle frame folding structure according to claim 7, characterized in that, The first fastener (160) is provided with a hook, and the second fastener (330) is provided with a groove, wherein the hook and the groove engage in a fastening relationship.
9. The anti-loosening locking mechanism of the electric bicycle frame folding structure according to any one of claims 1-3, characterized in that, A plurality of positioning screw holes are provided on the mounting step (110), and a mounting protrusion ring (340) is provided on the outer wall of the second connecting rod (310). A plurality of second fixing screws (350) matching the positioning screw holes are provided on the mounting protrusion ring (340), and the second fixing screws (350) are screwed to the positioning screw holes.