Novel auxiliary wheel part adaptive to folding bicycle

Abstract

The utility model discloses a novel auxiliary wheel part adaptive to a folding bicycle. The novel auxiliary wheel part comprises a mounting adapter, a connecting piece rotationally assembled on the mounting adapter, a U-shaped supporting leg fixedly connected to the connecting piece and shockproof rollers arranged on the two sides of the U-shaped supporting leg. A rotating notch is formed in the top of the mounting adapter, and one end of the connecting piece is rotationally mounted in the rotating notch; a first limiting surface and a second limiting surface are formed on the bottom surface of the rotating notch, and a first limiting bulge and a second limiting bulge are formed at the rotating end of the connecting piece; the U-shaped supporting legs can be folded and unfolded by rotating the connecting pieces, when the U-shaped supporting legs are folded, the first limiting protrusions abut against the first limiting faces for limiting, and when the U-shaped supporting legs are unfolded, the second limiting protrusions abut against the second limiting faces for limiting. The folding and unfolding device is small in size, can be flexibly and quickly folded and unfolded, and is higher in adaptability to the appearance of the whole vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle accessories, in particular to a novel auxiliary wheel part suitable for a folding bicycle. Background Art

[0002] Folding bicycles are designed to make it easier for users to take them on buses or subways. To make pushing or dragging bicycles more convenient, training wheels need to be installed on folding bicycles. However, existing training wheels are generally installed on the sides or bottom of the frame, which takes up more lateral or longitudinal space, making the frame itself appear larger and more prone to collisions and bumps on uneven or narrow roads. Traditional folding bicycle training wheels also use a heavier retractable structure. To reduce the burden on the entire vehicle, most are single-wheel auxiliary, but their stability is relatively poor, and the training wheels cannot be easily retracted or extended. They need to be locked and limited separately during retraction. At the same time, traditional folding bicycle training wheels are slightly larger and more conspicuous, which can easily affect the overall appearance of the vehicle. In addition, most existing training wheels are suitable for side-flip folding bicycles, and there is a lack of training wheels designed for bottom-flip folding bicycles. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a new auxiliary wheel component suitable for a folding bicycle. The auxiliary wheel component is small in size, can be flexibly and quickly retracted, and has a higher adaptability to the appearance of the entire bicycle.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A novel auxiliary wheel component adapted for a folding bicycle comprises a mounting adapter, a coupling member rotatably mounted on the mounting adapter, a U-shaped support leg fixedly connected to the coupling member, and anti-vibration rollers provided on both sides of the U-shaped support leg.

[0006] A rotation notch is provided on the top of the mounting adapter, and one end of the coupling is rotatably mounted in the rotation notch;

[0007] The bottom surface of the rotating notch is formed with a first limiting surface and a second limiting surface, and the rotating end of the connecting piece is formed with a first limiting protrusion and a second limiting protrusion;

[0008] Rotating the connecting member can fold and unfold the U-shaped support leg. When the U-shaped support leg is folded, the first limiting protrusion abuts against the first limiting surface for limiting position. When the U-shaped support leg is unfolded, the second limiting protrusion abuts against the second limiting surface for limiting position.

[0009] Furthermore, the rotatable angle of the connecting member is degrees.

[0010] Furthermore, an avoidance groove is provided between the first limiting surface and the second limiting surface of the rotation notch, and an arc angle is formed between the first limiting protrusion and the second limiting protrusion of the connecting member.

[0011] Furthermore, the anti-vibration rollers are rotatably mounted on both sides of the U-shaped support legs by means of locking screws.

[0012] Furthermore, the anti-vibration roller is made of rubber.

[0013] Furthermore, a plurality of weight-reducing holes are provided on the mounting adapter and the connecting member.

[0014] Furthermore, the connecting piece is in an arc shape as a whole.

[0015] Furthermore, the U-shaped support legs are made of aluminum.

[0016] Furthermore, a fixing hole and a slot are provided at the bottom of the mounting adapter.

[0017] By adopting the above technical solution, the utility model has the following beneficial effects:

[0018] 1. The utility model is applicable to a flip-down folding bicycle, which is small in size and installed in the middle of the frame. It can be folded and unfolded flexibly and quickly by simply rotating the U-shaped support legs. When the training wheels are folded, the U-shaped support legs can be folded and flipped on both sides of the rear wheel, which does not interfere with the vehicle and can adapt to the overall appearance of the vehicle. When the training wheels are needed, they can be put down and used quickly and conveniently by simply rotating the U-shaped support legs to the other side.

[0019] 2. The utility model can save folding space and can be folded and extended conveniently and quickly through the flip-up design of the U-shaped supporting legs; specifically, through the rotation limit cooperation of the connecting member and the rotating notch on the mounting adapter, that is, the abutment of the first limiting surface and the first limiting protrusion, and the abutment of the second limiting surface and the second limiting protrusion, the supporting effect of the U-shaped supporting legs in both the folded and lowered states can be achieved.

[0020] 3. This utility model uses anti-vibration rollers on both sides of the U-shaped support legs to form a four-wheel support structure with the front and rear wheels of the main vehicle, making it more stable when pushing, preventing the bicycle from tipping over, and providing stable static support. The overall structure is lightweight, beautiful and compact, taking up little space, without affecting the performance of the vehicle, and adding a styling advantage to the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model in the folded state;

[0022] Figure 2 It is a schematic diagram of the partial cross-section structure of the utility model in the folded state;

[0023] Figure 3 This is a schematic diagram of the structure of the utility model in the expanded state;

[0024] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the utility model in the unfolded state;

[0025] Figure 5 This is a reference diagram for the use of the utility model in the folded state;

[0026] Figure 6 This is a reference diagram for use of the utility model in the unfolded state;

[0027] Among them, 1. Mounting adapter; 10. Fixing hole; 11. Card slot; 100. Rotation notch; 101. First limiting surface; 102. Second limiting surface; 103. Avoidance groove; 2. Connecting piece; 21. First limiting protrusion; 22. Second limiting protrusion; 23. Arc angle; 3. U-shaped support leg; 4. Anti-vibration roller; 5. Locking screw; 600. Weight reduction hole. DETAILED DESCRIPTION

[0028] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0029] like Figure 1-6 As shown, in this embodiment, a novel training wheel assembly suitable for folding bicycles is provided. It mainly comprises a mounting adapter 1, a coupling 2, a U-shaped support leg 3, and two anti-vibration rollers 4. One end of the coupling 2 is rotatably mounted to the mounting adapter 1 via rivets, the U-shaped support leg 3 is welded to the other end of the coupling 2, and the two anti-vibration rollers 4 are rotatably mounted to both sides of the U-shaped support leg 3 via locking screws 5.

[0030] Specifically, a rotation notch 100 is provided at the top of the mounting adapter 1, and one end of the coupling 2 is rotationally installed in the rotation notch 100 by means of rivets. At the same time, a first limiting surface 101 and a second limiting surface 102 are formed on the bottom surface of the rotation notch 100, and a first limiting protrusion 21 and a second limiting protrusion 22 are also formed at the rotating end of the coupling 2. When the coupling 2 is rotated, the U-shaped support leg 3 and the anti-vibration roller 4 thereon can be driven to rotate, thereby realizing the folding and unfolding of the U-shaped support leg 3; when the U-shaped support leg 3 is folded, the first limiting protrusion 21 abuts against the first limiting surface 101 for a limit position, and when the U-shaped support leg 3 is unfolded, the second limiting protrusion 22 abuts against the second limiting surface 102 for a limit position. It is worth mentioning that in this embodiment, the rotatable angle of the coupling 2 is 90 degrees, and the positions of the two end points just correspond to the above two states.

[0031] This embodiment is specifically installed in the middle of the frame and is primarily suitable for folding-down bicycles. The bottom of the mounting adapter 1 features fixing holes 10 and slots 11, allowing it to be fixed to the frame via the fixing holes 10 and screws, with the slots 11 providing precise positioning. Its compact size allows for quick and flexible folding and unfolding simply by rotating the U-shaped support legs 3. When the anti-vibration rollers 4 are folded and tilted to either side of the rear wheel for riding, they neither interfere with the vehicle nor interfere with its overall shape. To deploy the anti-vibration rollers 4, simply rotate the U-shaped support legs 3 to the other side for quick and convenient folding and unfolding.

[0032] To reduce frictional interference during rotation, an avoidance groove 103 is provided between the first limiting surface 101 and the second limiting surface 102 of the rotation notch 100 of this embodiment, and a rounded corner 23 is formed between the first limiting protrusion 21 and the second limiting protrusion 22 of the coupling member 2. This ensures smooth rotation of the coupling member 2, avoids frictional interference, prevents jamming, and extends the service life of the mechanism.

[0033] Specifically, the anti-vibration rollers 4 in this embodiment are made of rubber, effectively providing shock absorption. To reduce the overall weight of the mechanism, multiple weight-reducing holes 600 are provided on both the mounting adapter 1 and the connector 2, and the U-shaped support legs 3 are made of aluminum. Furthermore, to enhance the strength of the mechanism, the connector 2 is constructed as a whole into an arc-shaped structure, effectively ensuring its strength.

[0034] This embodiment uses a flip-up design of the U-shaped support leg 3 to save storage space and facilitate quick and easy folding and unfolding operations. The overall structure is lightweight, beautiful, and compact, and does not take up much space, which will not affect the performance of the entire vehicle and adds a styling advantage to the entire vehicle.

[0035] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new type of training wheel component suitable for folding bicycles, characterized by: It comprises a mounting adapter (1), a connecting member (2) rotatably mounted on the mounting adapter (1), a U-shaped support leg (3) fixedly connected to the connecting member (2), and anti-vibration rollers (4) arranged on both sides of the U-shaped support leg (3); A rotation notch (100) is provided on the top of the mounting adapter (1), and one end of the connecting member (2) is rotatably mounted in the rotation notch (100); The bottom surface of the rotation notch (100) is formed with a first limiting surface (101) and a second limiting surface (102), and the rotation end of the connecting member (2) is formed with a first limiting protrusion (21) and a second limiting protrusion (22); The U-shaped support leg (3) can be folded and unfolded by rotating the connecting member (2); when the U-shaped support leg (3) is folded, the first limiting protrusion (21) abuts against the first limiting surface (101) for limiting position; and when the U-shaped support leg (3) is unfolded, the second limiting protrusion (22) abuts against the second limiting surface (102) for limiting position.

2. A novel auxiliary wheel component adapted for a folding bicycle according to claim 1, characterized in that: The rotatable angle of the connecting member (2) is 90 degrees.

3. The novel auxiliary wheel component adapted for a folding bicycle according to claim 1, characterized in that: An avoidance groove (103) is further provided between the first limiting surface (101) and the second limiting surface (102) of the rotation notch (100), and an arc angle (23) is formed between the first limiting protrusion (21) and the second limiting protrusion (22) of the connecting member (2).

4. The novel auxiliary wheel component adapted for a folding bicycle according to claim 1, characterized in that: The anti-vibration rollers (4) are rotatably mounted on both sides of the U-shaped support legs (3) by means of locking screws (5).

5. The novel auxiliary wheel component adapted for a folding bicycle according to claim 1, characterized in that: The anti-vibration roller (4) is made of rubber.

6. The novel auxiliary wheel component adapted for a folding bicycle according to claim 1, characterized in that: A plurality of weight-reducing holes (600) are provided on the mounting adapter (1) and the connecting member (2).

7. The novel auxiliary wheel component adapted for a folding bicycle according to claim 1, characterized in that: The connecting piece (2) is in an arc shape as a whole.

8. The novel auxiliary wheel component adapted for a folding bicycle according to claim 1, characterized in that: The material of the U-shaped support leg (3) is aluminum.

9. The novel auxiliary wheel component adapted for a folding bicycle according to claim 1, characterized in that: A fixing hole (10) and a slot (11) are provided at the bottom of the mounting adapter (1).

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