Folding buckles for the front and rear frames of a folding bicycle

Abstract

This utility model discloses a folding buckle for the front and rear frames of a folding bicycle. The folding buckle includes a rigid component and a flexible pad. The rigid component has a connecting part for inserting into the front wheel axle and a U-shaped groove with a buckle hole at the outer end of the groove. The flexible pad is a U-shaped component that is inserted into the groove and has a buckle head at its outer end. The buckle head engages with the buckle hole, and a gap is left between the outer end of the flexible pad and the outer end of the arc surface of the groove. During installation, the rigid component is fixed to the front wheel axle, and the limiting protrusion engages with the concave surface of the front frame to prevent rotation. During folding, the flexible pad on the folding buckle engages with the rear frame support crossbar, completing the locking of the front and rear frames. This utility model is easy to operate, requires no tools, effectively prevents collision between the front and rear frames, and has a stable structure, shock absorption, and wear resistance, improving the convenience and safety of using folding bicycles.

Description

Technical Field

[0001] This utility model relates to folding bicycles, specifically to a folding buckle for the front and rear frames of a folding bicycle. Background Technology

[0002] Folding bicycles are widely used for urban commuting and short-distance travel due to their ease of carrying and storage. The folding section of the frame is a key structural element that determines the safety and lifespan of a folding bicycle, while the folding latch is used to lock the frame in place after folding.

[0003] In existing technology, folding bicycle frames do not have a locking mechanism after folding; instead, tension straps are used to bind the front and rear frames during transportation or storage. Due to the bumps during transport, these tension straps are prone to breaking, causing paint damage or deformation of the front and rear frames due to impacts, affecting sales. Furthermore, when retrieving the stored folding bicycle, tools such as scissors are needed to cut the tension straps, which is inconvenient.

[0004] Therefore, there is a need for a folding buckle that is simple in structure, has a stable connection, is wear-resistant and shock-absorbing, and is easy to operate, in order to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a folding buckle for the front and rear frames of a folding bicycle. The purpose of this folding buckle is to simplify operation and prevent collisions between the front and rear frames.

[0006] To solve the above-mentioned technical problems, this utility model provides the following solution: a folding buckle for the front and rear frames of a folding bicycle, comprising:

[0007] A rigid member having a connecting portion capable of being fitted into a front wheel axle and a groove;

[0008] A flexible pad is inserted into and fixed to the groove, the flexible pad having an arc-shaped groove.

[0009] Furthermore, the groove is a U-shaped groove.

[0010] Furthermore, the first end of the U-shaped groove is a right angle, and the second end is an arc-shaped corner.

[0011] The outer end of the U-shaped groove is provided with a buckle hole.

[0012] Furthermore, the flexible pad is a U-shaped component, the outer contour of which mates with the U-shaped groove.

[0013] Furthermore, the outer end of the flexible pad is provided with a gap from the outer end of the arc surface of the U-shaped structure groove, and the outer side of the outer end of the flexible pad has a buckle, which fastens to the buckle hole.

[0014] Furthermore, the connecting part is a shaft hole that can be fitted into the front wheel axle.

[0015] Furthermore, a limiting protrusion is provided on the outer side of the rigid member facing the front wheel.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The folding buckle of this utility model is easy to operate: This utility model achieves quick locking and unlocking through the cooperation of the buckle head and the buckle hole, without the need for additional tools, which solves the trouble of needing to cut the tensioning strap with scissors in the prior art and improves the convenience of use.

[0018] This utility model features a folding buckle to prevent collisions: the folding buckle can securely connect the front and rear frames after folding, preventing them from colliding with each other during transportation or storage due to bumps or other reasons, thereby preventing problems such as paint peeling and deformation, and protecting the frame from damage.

[0019] The folding buckle structure of this utility model is stable: the rigid component provides a stable support base, and the flexible pad is in close contact with the frame, making the connection more secure and reliable, and less prone to loosening.

[0020] This utility model features a shock-absorbing and wear-resistant folding buckle: the flexible pad has a certain degree of elasticity, which can buffer and absorb shock when the frame is subjected to vibration. At the same time, the flexible material also has good wear resistance, which extends the service life of the folding buckle.

[0021] The folding buckle of this utility model has a limiting function: the setting of the limiting protrusion can further position and limit the frame, ensuring that the frame is accurately positioned in the folded and locked state, and improving the overall stability. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the folding buckle of this utility model.

[0023] Figure 2 This is a side view of the folding buckle structure of this utility model.

[0024] Figure 3 This is a side view of the rigid component of this utility model.

[0025] Figure 4 This is a schematic diagram showing the installation position of the folding buckle of this utility model.

[0026] Figure 5 This is an enlarged view of the installation position of the folding buckle of this utility model.

[0027] Figure 6 This is a schematic diagram of the rear frame of this utility model after folding.

[0028] Figure 7This is a schematic diagram showing the front frame of this utility model being pre-fastened to the rear frame support crossbar after folding.

[0029] Figure 8 This is a schematic diagram of the bicycle frame after it has been folded and secured with the folding buckle of this utility model.

[0030] The following are labeled in the attached diagram: 1. Connecting part; 2. Rigid component; 3. Flexible pad; 4. Gap; 5. Buckle; 6. Limiting protrusion; 7. Groove; 10. Folding buckle; 20. Protective pad. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model. Obviously, the embodiments described in this utility model 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] Example 1: The specific structure of this utility model is as follows:

[0034] Please refer to the appendix. Figure 1-3 The present invention relates to a folding buckle for the front and rear frames of a folding bicycle, comprising:

[0035] Rigid member 2, which has a connecting part 1 that can be installed into the front wheel axle and a groove 7; the groove 7 is a U-shaped groove; the first end of the U-shaped groove has a right angle, and the second end has an arc-shaped angle; the outer end of the U-shaped groove is provided with a buckle hole;

[0036] A flexible pad 3 is inserted into and fixed to the groove. The flexible pad 3 has an arc-shaped groove. The flexible pad 3 is a U-shaped component, and the outer contour of the U-shaped component mates with the U-shaped groove. A gap 4 is provided between the outer end of the flexible pad 3 and the outer end of the arc surface of the U-shaped groove, and a buckle 5 is provided on the outer side of the outer end of the flexible pad 3, which fastens to the buckle hole.

[0037] The connecting part 1 is a shaft hole that can be fitted into the front wheel axle. Specifically, the shaft hole is a round hole, and after the shaft hole is fitted into the front wheel axle, it is locked in place. Figure 5 As shown, the U-shaped opening of the flexible pad 3 is tilted downwards, in the same direction as the front frame diagonal brace.

[0038] The rigid member 2 has a limiting protrusion 6 on its outer side facing the front wheel. The limiting protrusion 6 is engaged with the concave surface in the direction of the inclined support. The rigid member 2 is prevented from rotating by the tightness between the limiting protrusion 6 and the concave surface.

[0039] Example 2:

[0040] like Figure 4-8 The following describes the process of locking the front and rear frames of the folding bicycle of this utility model using the folding buckle after folding:

[0041] I. Installation steps for folding buckles:

[0042] For securing the rigid component, align the shaft hole of the rigid component 2 with the bicycle's front wheel axle, insert it axially onto the axle, and then lock it in place with bolts or bushings to ensure that the rigid component 2 is fixed to the front wheel axle as a single unit. At this time, the opening direction of the U-shaped groove of the rigid component 2 must be consistent with that of the front frame diagonal brace (tilted downwards), and the outer limiting protrusion 6 must engage with the concave surface of the front frame diagonal brace. The tight contact between the protrusion and the concave surface prevents the rigid component 2 from rotating during use.

[0043] For the assembly of the flexible pad, the U-shaped flexible pad 3 is inserted into the U-shaped groove of the rigid member 2 and fixed with screws, ensuring that the outer contour of the flexible pad 3 is completely fitted with the groove 7. The buckle 5 at the outer end of the flexible pad 3 is aligned with the buckle hole at the outer end of the U-shaped groove, and gently pressed to make the buckle 5 snap into the buckle hole to complete the fixation. At this time, a preset gap 4 should be maintained between the outer end of the flexible pad 3 and the outer end of the arc surface of the U-shaped groove. This gap provides elastic deformation space for the flexible pad 3, making it easier for the flexible pad 3 to be fastened into the rear frame support crossbar.

[0044] II. Bicycle folding and locking operation:

[0045] The frame folding process begins by releasing the folding joint locks on the bicycle frame, then folding the front and rear frames inwards (as shown). Figure 6-7 (as shown) Figure 7 In the middle section, the rear frame support crossbar is fitted with a protective pad 20, and the rear frame support crossbar gradually approaches the folding buckle 10 of the front frame. During the folding process, it is necessary to ensure that the curvature of the rear frame support crossbar matches the arc groove of the flexible pad 3 to facilitate subsequent fastening.

[0046] To lock the vehicle, slightly lift the front of the vehicle and then fasten the flexible pad 3 onto the protective pad 20, completing the folding process. At this point, the flexible pad 3, due to its own elasticity, adheres tightly to the protective pad 20, and the rigid component 2 remains stable through the positioning action of the limiting protrusion 6 against the front frame, thus firmly locking the front and rear frames (as shown). Figure 8 (As shown), to avoid relative collisions during transportation or storage.

[0047] III. Bicycle unfolding and unlocking operation:

[0048] To unlock the bicycle, lift the handlebars again to separate the flexible pad 3 from the protective pad 20. After unlocking, simply pry the front and rear frames apart.

[0049] In summary, the folding buckle of this utility model is easy to operate: the buckle head and buckle hole cooperate to achieve quick locking and unlocking without the need for additional tools, which solves the problem of having to cut the tensioning strap with scissors in the prior art and improves the convenience of use.

[0050] This utility model features a folding buckle to prevent collisions: the folding buckle can securely connect the front and rear frames after folding, preventing them from colliding with each other during transportation or storage due to bumps or other reasons, thereby preventing problems such as paint peeling and deformation, and protecting the frame from damage.

[0051] The folding buckle structure of this utility model is stable: the rigid component provides a stable support base, the flexible pad is in close contact with the frame, and the connection is more secure and reliable through the buckle head and buckle hole fastening method, making it less prone to loosening.

[0052] This utility model features a shock-absorbing and wear-resistant folding buckle: the flexible pad has a certain degree of elasticity, which can buffer and absorb shock when the frame is subjected to vibration. At the same time, the flexible material also has good wear resistance, which extends the service life of the folding buckle.

[0053] The folding buckle of this utility model has a limiting function: the setting of the limiting protrusion can further position and limit the frame, ensuring that the frame is accurately positioned in the folded and locked state, and improving the overall stability.

[0054] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A folding buckle for the front and rear frames of a folding bicycle, characterized in that, include: Rigid member (2), which has a connecting part (1) that can be inserted into the front wheel axle and a groove (7); A flexible pad (3) is inserted into and fixed in the groove, the flexible pad (3) having an arc groove.

2. The folding buckle for the front and rear frames of a folding bicycle according to claim 1, characterized in that, The groove (7) is a U-shaped groove.

3. The folding buckle for the front and rear frames of a folding bicycle according to claim 2, characterized in that, The first end of the U-shaped groove has a right angle, and the second end has an arc-shaped angle. The outer end of the U-shaped groove is provided with a buckle hole.

4. The folding buckle for the front and rear frames of a folding bicycle according to claim 3, characterized in that, The flexible pad (3) is a U-shaped component, and the outer contour of the U-shaped component matches the U-shaped structure groove.

5. The folding buckle for the front and rear frames of a folding bicycle according to claim 3, characterized in that, The outer end of the flexible pad (3) is provided with a gap (4) between the outer end of the arc surface of the U-shaped structure groove and the outer side of the outer end of the flexible pad (3) is provided with a buckle (5), which is fastened to the buckle hole.

6. The folding buckle for the front and rear frames of a folding bicycle according to claim 1, characterized in that, The connecting part (1) is a shaft hole that can be fitted into the front wheel axle.

7. The folding buckle for the front and rear frames of a folding bicycle according to claim 1, characterized in that, The rigid member (2) has a limiting protrusion (6) on its outer side and facing the front wheel direction.

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