Foldable bicycle frame of hidden electric power-assisted mountain

Abstract

The utility model discloses a hidden electric power-assisted folding frame of a bicycle. The hidden electric power-assisted folding frame comprises a front frame and a rear frame, the front frame and the rear frame are rotationally connected through a rotating shaft structure, and then folding between the front frame and the rear frame is achieved. A hidden splicing structure is arranged between the front frame and the rear frame, and the front frame and the rear frame are fixed after being unfolded through the hidden splicing structure. The front frame and the rear frame realize flexible folding and unfolding functions through a rotating shaft structure; a user can quickly fold or unfold the frame only through simple operation, and the frame is convenient to carry and store.

Description

Technical Field

[0001] This utility model relates to a folding frame, specifically a concealed electric-assisted folding frame for bicycles. Background Technology

[0002] Many existing folding frame designs suffer from complex structures and cumbersome operations. Users need to spend a lot of time and effort to fold or unfold them, resulting in a poor user experience.

[0003] When traditional folding bike frames are unfolded, the connection between the front and rear frames often relies on a single fixing mechanism, which can easily loosen or detach during riding, increasing the risk of accidents.

[0004] Some frame designs lack effective locking mechanisms, resulting in loose connections during riding, which may lead to accidental folding and make riding unsafe. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a hidden electric-assisted folding bicycle frame to solve the problems existing in the background art.

[0006] The concealed electric-assisted folding bicycle frame of this utility model is achieved through the following technical solution, including a front frame and a rear frame.

[0007] The front frame and the rear frame are rotatably connected by a pivot structure, thereby realizing the folding of the front frame and the rear frame; a hidden splicing structure is provided between the front frame and the rear frame to achieve fixation after the front frame and the rear frame are unfolded.

[0008] As a preferred technical solution, the pivot structure includes a pivot seat and a pivot body; the pivot seat is disposed on the front frame and the pivot body is disposed on the rear frame; the pivot body and the pivot seat are rotatably connected by a pivot assembly.

[0009] As a preferred technical solution, the concealed splicing structure includes a sliding groove and a plug-in block disposed on the rear frame;

[0010] The plug block is slidably disposed in the sliding groove, and a guide groove is provided on the rear frame. The guide block on the plug block passes through the guide groove, and a lever is installed on the guide block. By moving the lever, the plug block is driven to slide in the sliding groove.

[0011] The front frame is provided with a plug slot, and the plug slot corresponds to the plug block. When the plug block is in the extended state, the plug block is placed in the plug slot.

[0012] As a preferred technical solution, the front and rear ends of the guide block are provided with positioning holes, and the toggle block is provided with positioning components, which realize the positioning of the toggle block at different positions.

[0013] The positioning component includes a movable groove disposed inside the toggle block, and a movable block disposed inside the movable groove; a connecting rod is disposed at one end of the movable block, and the end of the connecting rod passing through the movable groove is placed outside the toggle block, and a pull block is disposed on the connecting rod; a positioning rod is disposed at the other end of the movable block, and the positioning rod passes through the other end of the movable groove and is placed in a positioning hole.

[0014] A spring is fitted on the connecting rod, with one end of the spring in contact with the movable block and the other end in contact with the movable groove. The spring compresses the positioning rod so that it is placed in the positioning hole.

[0015] As a preferred technical solution, a locking screw is provided on the front frame, and the locking end of the locking screw is placed in the slot of the plug block; the plug block is provided with a locking hole, and when the plug block is placed in the slot of the plug block, the locking end of the locking screw is threadedly connected to the locking hole.

[0016] As a preferred technical solution, the rotating shaft assembly includes an upper rotating shaft and a lower rotating shaft;

[0017] The upper rotating shaft is provided with a threaded post, and the lower rotating shaft is provided with a threaded hole. The upper rotating shaft and the lower rotating shaft are connected by the threaded post and the threaded hole.

[0018] The beneficial effects of this utility model are:

[0019] The front and rear frames of this utility model achieve flexible folding and unfolding functions through a pivot structure; users can quickly fold or unfold the frame with simple operation, making it easy to carry and store.

[0020] The concealed splicing structure of this utility model ensures a stable connection between the front and rear frames when they are unfolded by combining plug-in blocks and sliding grooves, avoiding the risk of loosening or falling off during riding and improving safety.

[0021] This invention uses guide blocks and push-pull blocks to allow the plug-in block to slide smoothly in the sliding groove, making the user's operation when folding or unfolding smoother, reducing complicated steps and improving the convenience of use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the folding structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the positioning component structure of this utility model;

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Front frame; 2. Rear frame; 3. Axle seat; 4. Axle body; 5. Sliding groove; 6. Insertion block; 7. Guide groove; 8. Toggle block; 9. Insertion block slot; 10. Positioning hole; 11. Movable groove; 12. Movable block; 13. Connecting rod; 14. Pull block; 15. Positioning rod; 16. Spring; 17. Locking screw; 18. Locking hole; 19. Upper axle; 20. Lower axle; 21. Threaded post; 22. Threaded hole. Detailed Implementation

[0029] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0030] like Figures 1-4 As shown, the present invention provides a concealed electric-assisted folding bicycle frame, comprising a front frame 1 and a rear frame 2.

[0031] The front frame 1 and the rear frame 2 are rotatably connected by a pivot structure, thereby realizing the folding of the front frame 1 and the rear frame 2; a hidden splicing structure is provided between the front frame 1 and the rear frame 2, which realizes the fixation of the front frame 1 and the rear frame 2 after they are unfolded.

[0032] The rotating shaft structure includes a rotating shaft seat 3 and a rotating shaft body 4; the rotating shaft seat 3 is disposed on the front frame 1, and the rotating shaft body 4 is disposed on the rear frame 2; the rotating shaft body 4 and the rotating shaft seat 3 are rotatably connected by a rotating shaft assembly.

[0033] The concealed splicing structure includes a sliding groove 5 and a plug-in block 6 set on the rear frame 2;

[0034] The plug-in block 6 is slidably disposed in the sliding groove 5, and the rear frame 2 is provided with a guide groove 7. The guide block on the plug-in block 6 passes through the guide groove 7, and a push-pull block 14 is installed on the guide block. By moving the push-pull block 14, the plug-in block 6 is driven to slide in the sliding groove 5.

[0035] The front frame 1 is provided with a plug slot 9, and the plug slot 9 corresponds to the plug block 6. When the plug block 6 is in the extended state, the plug block 6 is placed in the plug slot 9.

[0036] The guide block has positioning holes 10 at both the front and rear ends, and the push-pull block 14 has a positioning component, which enables the push-pull block 14 to be positioned at different positions.

[0037] The positioning component includes a movable groove 11 disposed inside the push-pull block 14, and a movable block 12 disposed inside the movable groove 11; a connecting rod 13 is disposed at one end of the movable block 12, and the end of the connecting rod 13 passing through the movable groove 11 is placed outside the push-pull block 14, and a pull block 14 is disposed on the connecting rod 13; a positioning rod 15 is disposed at the other end of the movable block 12, and the positioning rod 15 passes through the other end of the movable groove 11 and is placed inside the positioning hole 10;

[0038] A spring 16 is fitted on the connecting rod 13, with one end of the spring 16 in contact with the movable block 12 and the other end of the spring 16 in contact with the movable groove 11. By pressing with the spring 16, the positioning rod 15 is placed in the positioning hole 10.

[0039] In order to achieve a secondary fixing effect, in this embodiment, a locking screw 17 is provided on the front frame 1, and the locking end of the locking screw 17 is placed in the insertion block groove 9; the insertion block 6 is provided with a locking hole 18, and when the insertion block 6 is placed in the insertion block groove 9, the locking end of the locking screw 17 is threadedly connected to the locking hole 18.

[0040] To facilitate the installation of the rotating shaft assembly, in this embodiment, the rotating shaft assembly includes an upper rotating shaft 19 and a lower rotating shaft 20;

[0041] The upper rotating shaft 19 is provided with a threaded post 21, and the lower rotating shaft 20 is provided with a threaded hole 22. The upper rotating shaft 19 and the lower rotating shaft 20 are connected by the threaded post 21 and the threaded hole 22.

[0042] This utility model features a front and rear frame that utilize a pivot structure to achieve flexible folding and unfolding. Users can easily fold or unfold the frame for convenient carrying and storage. The concealed splicing structure, through the combination of interlocking blocks and sliding grooves, ensures a stable connection between the front and rear frames in the unfolded state, avoiding the risk of loosening or detachment during riding and improving safety.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A concealed electric-assisted folding bicycle frame, characterized in that, Includes the front frame (1) and the rear frame (2); The front frame (1) and the rear frame (2) are rotatably connected by a pivot structure, thereby realizing the folding between the front frame (1) and the rear frame (2); a hidden splicing structure is provided between the front frame (1) and the rear frame (2), and the front frame (1) and the rear frame (2) are fixed after unfolding through the hidden splicing structure.

2. The concealed electric-assisted folding bicycle frame according to claim 1, characterized in that: The rotating shaft structure includes a rotating shaft seat (3) and a rotating shaft body (4); the rotating shaft seat (3) is disposed on the front frame (1), and the rotating shaft body (4) is disposed on the rear frame (2); the rotating shaft body (4) and the rotating shaft seat (3) are rotatably connected by a rotating shaft assembly.

3. The concealed electric-assisted folding bicycle frame according to claim 1, characterized in that: The concealed splicing structure includes a sliding groove (5) and a plug-in block (6) provided on the rear frame (2); The plug-in block (6) is slidably disposed in the sliding groove (5), and a guide groove (7) is provided on the rear frame (2). The guide block on the plug-in block (6) passes through the guide groove (7) and a lever (8) is installed on the guide block. By levering the lever (8), the plug-in block (6) is driven to slide in the sliding groove (5). The front frame (1) is provided with a plug slot (9), and the plug slot (9) corresponds to the plug block (6). When the plug block (6) is in the extended state, the plug block (6) is placed in the plug slot (9).

4. The concealed electric-assisted folding bicycle frame according to claim 3, characterized in that: The guide block is provided with positioning holes (10) at both the front and rear ends, and the toggle block (8) is provided with positioning components. The positioning components are used to position the toggle block (8) at different positions. The positioning component includes a movable groove (11) disposed inside the toggle block (8), and a movable block (12) disposed inside the movable groove (11); a connecting rod (13) is disposed at one end of the movable block (12), and the end of the connecting rod (13) passing through the movable groove (11) is placed outside the toggle block (8), and a pull block (14) is disposed on the connecting rod (13); a positioning rod (15) is disposed at the other end of the movable block (12), and the positioning rod (15) passes through the other end of the movable groove (11) and is placed inside the positioning hole (10); A spring (16) is fitted on the connecting rod (13), and one end of the spring (16) contacts the movable block (12), while the other end of the spring (16) contacts the movable groove (11). By the compression of the spring (16), the positioning rod (15) is placed in the positioning hole (10).

5. The concealed electric-assisted folding bicycle frame according to claim 3, characterized in that: The front frame (1) is provided with a locking screw (17), and the locking end of the locking screw (17) is placed in the insertion block groove (9); the insertion block (6) is provided with a locking hole (18), and when the insertion block (6) is placed in the insertion block groove (9), the locking end of the locking screw (17) is threadedly connected to the locking hole (18).

6. The concealed electric-assisted folding bicycle frame according to claim 2, characterized in that: The rotating shaft assembly includes an upper rotating shaft (19) and a lower rotating shaft (20); The upper rotating shaft (19) is provided with a threaded post (21), and the lower rotating shaft (20) is provided with a threaded hole (22). The upper rotating shaft (19) and the lower rotating shaft (20) are connected by the threaded post (21) and the threaded hole (22).

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