Opening holding ring
By using the opening clamp ring made of carbon fiber material and designing a mutually coordinated curved snap at its opening, the existing opening clamp ring is easily damaged and heavy, achieving the effect of light weight, high strength and stable steering.
Patent Information
- Application Number
- CN202422834658.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The existing open clamping ring is easily damaged by excessive operation during assembly, and the open clamping ring of traditional materials is relatively large in weight, which can easily cause damage to the bicycle fork of carbon fiber material.
The opening clamping ring made of carbon fiber material is designed with mutually shaped curved snaps, including the inner curved snaps and the outer curved snaps. The outer buckle and the inward buckle snaps are snapped together when expanding, limiting the expansion range and avoiding transitional expansion damage.
The lightweight and high-strength opening tightening ring is achieved, avoiding the breaking transition damage, and is suitable for use with carbon fiber bicycle forks, improving the stability of the bicycle steering.
Smart Images
Figure CN222988324U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the design technology of bicycle parts, in particular to an open tightening ring that can be fitted with a head tube cup to tightly hold a bicycle front fork. Background Art
[0002] The traditional open tightening ring is a non-closed circular ring body with an opening. Due to the opening, it has the ability of radial elastic deformation. After the open tightening ring is assembled, since it is squeezed in the circumferential direction, it can generate a radial force inward, so that it can tightly hold the bicycle front fork. At present, most of the open tightening rings on the market simply cut out a notch on the open tightening ring to form an opening. There is no mutual interaction relationship at the opening of this kind of open tightening ring. Therefore, it is easy to be damaged due to excessive operation during assembly. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide an open tightening ring with light weight, high strength, simple structure and avoiding excessive opening, aiming at the current situation of the above-mentioned prior art.
[0004] The technical solution adopted by the utility model to solve the above technical problem is as follows:
[0005] An open tightening ring includes a non-closed tightening ring body with an opening in the circumferential direction. A central through hole for the bicycle front fork to pass through is provided at the center of the tightening ring body; a pair of cooperating arc-shaped buckles are arranged in the opening of the tightening ring body. The pair of arc-shaped buckles includes an inner arc-shaped buckle formed on one side surface of the opening and an outer arc-shaped buckle formed on the other side surface of the opening; the inner arc-shaped buckle has an outward buckle head radially outward, and the outer arc-shaped buckle has an inward buckle head radially inward. The outward buckle head and the inward buckle head are mutually buckled to limit the expansion range of the tightening ring body when the tightening ring body is deformed and expanded.
[0006] In order to optimize the above technical solution, the specific measures taken further include:
[0007] Two arc-shaped notches for threading are formed on the above-mentioned tightening ring body, and a protrusion is formed between the two arc-shaped notches.
[0008] The above-mentioned protrusion is circumferentially spaced 180 degrees from the opening on the tightening ring body.
[0009] A plurality of weight-reducing grooves are provided on the top surface of the above-mentioned tightening ring body.
[0010] A semi-circular block is arranged on the top surface of the above-mentioned inner arc-shaped buckle.
[0011] A force-bearing inclined surface for bearing pressure is arranged on the outer peripheral surface of the above-mentioned tightening ring body.
[0012] The arc-shaped notch is formed with a guiding inclined surface for guiding threading.
[0013] Compared with the prior art, the clamping ring body of the utility model is made of carbon fiber material, which is light in weight and high in strength, and meets the demand for lightweight bicycles. The utility model provides a pair of arc buckles that cooperate with each other in the opening of the traditional clamping ring body, and the pair of arc buckles includes an inner arc buckle and an outer arc buckle; the inner arc buckle has an outer buckle head that is radially outward, and the outer arc buckle has an inner buckle head that is radially inward. When the clamping ring body is stretched open for easy installation, the outer buckle head and the inner buckle head can be buckled with each other, thereby preventing the clamping ring body from being damaged due to excessive expansion.
[0014] The utility model has the advantages of light weight, high strength and simple assembly, and can improve the steering stability of the bicycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 yes Figure 1 AA section structure diagram;
[0017] Figure 3 yes Figure 1 Bottom view of
[0018] Figure 4 yes Figure 1 A top view of
[0019] Figure 5 yes Figure 1 Rear view of
[0020] Figure 6 yes Figure 1 One of the three-dimensional structural diagrams;
[0021] Figure 7 yes Figure 1 The second three-dimensional structure diagram of . DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.
[0023] Figures 1 to 7 It is a structural diagram of the utility model.
[0024] The accompanying drawings are marked as follows: clamping ring body 1, central through hole 1a, opening 2, inner arc buckle 3, outward buckle head 31, clamping block 32, outer arc buckle 4, inward buckle head 41, arc groove 5, guide slope 51, protrusion 6, weight-reducing groove 7, and force-bearing slope 8.
[0025] The open clamping ring is used to cooperate with the head tube bowl assembly to ensure that the bicycle front fork can rotate freely relative to the head tube, and to ensure the safety and comfort of the bicycle steering system. Traditional open clamping rings are mostly made of metal materials. Such open clamping rings are relatively heavy, and when the metal open clamping ring is matched with a carbon fiber bicycle front fork, it is also likely to cause potential damage risks to the carbon fiber front fork.
[0026] The present utility model discloses an open clamping ring made of carbon fiber material. This open clamping ring is light in weight and high in strength, and is suitable for being used in cooperation with a front fork and a head tube made of carbon fiber material. The open clamping ring of the present utility model includes a non-closed clamping ring body 1 with an opening 2 in the circumferential direction. A central through hole 1a for the bicycle front fork to pass through is provided at the center of the clamping ring body 1. The clamping ring body 1 is a non-closed circular ring body, which enables the clamping ring body 1 to have a space for radial elastic deformation. This not only facilitates installation, but also after assembly, the clamping ring body 1 can automatically reduce its diameter under the pressure on the outer circumference, so as to achieve the purpose of clamping the bicycle front fork.
[0027] The key point of the present utility model is that: a pair of mutually cooperating arc-shaped buckles are provided in the opening 2 of the traditional clamping ring body 1. This pair of arc-shaped buckles includes an inner arc-shaped buckle 3 formed on one side surface of the opening 2 and an outer arc-shaped buckle 4 formed on the other side surface of the opening 2. The inner arc-shaped buckle 3 has an outward buckle head 31 radially outward, and the outer arc-shaped buckle 4 has an inward buckle head 41 radially inward. When there is no force, there is a space for expansion and deformation between the outward buckle head 31 and the inward buckle head 41. When the clamping ring body 1 needs to expand in diameter to facilitate being sleeved on the bicycle front fork, the outward buckle head 31 and the inward buckle head 41 can be buckled with each other, so as to limit the maximum range of the expansion and deformation of the clamping ring body 1 within the range with the space for expansion and deformation, and avoid damage caused by excessive expansion of the clamping ring body 1.
[0028] In the embodiment, two arc-shaped notches 5 for threading are formed on the clamping ring body 1 of the present utility model. A protrusion 6 is formed between the two arc-shaped notches 5. The arc-shaped notches 5 can facilitate the passing of bicycle brake lines, shift lines, electric wires, etc.
[0029] In the embodiment, the protrusion 6 and the opening 2 are circumferentially spaced 180 degrees on the clamping ring body 1 of the present utility model.
[0030] In the embodiment, a plurality of weight-reducing groove pits 7 are provided on the top surface of the clamping ring body 1 of the present utility model. The plurality of weight-reducing groove pits 7 are arranged in an arc shape on the top surface of the clamping ring body 1.
[0031] In the embodiment, a semi-circular block 32 is provided on the top surface of the inner arc-shaped buckle 3 of the present utility model.
[0032] In an embodiment, a force-bearing inclined surface 8 for bearing pressure is provided on the outer peripheral surface of the clamping ring body 1 of the present utility model. The force-bearing inclined surface 8 can cooperate with the thrust inclined surface of the head tube cup, so that the clamping ring body 1 can reduce its diameter and tightly hold the front fork of the bicycle after assembly.
[0033] In an embodiment, a guiding inclined surface 51 is formed at the arc-shaped notch 5 of the present utility model. The guiding inclined surface 51 can play a guiding role in threading, ensuring that the threaded wire can smoothly pass through the arc-shaped notch 5.
[0034] The best embodiment of the present utility model has been illustrated, and various changes or modifications made by those of ordinary skill in the art will not depart from the scope of the present utility model.
Claims
1. An open clamping ring, comprising a non-closed clamping ring body (1) with an opening (2) in the circumferential direction, wherein a central through hole (1a) for a bicycle front fork to pass through is provided at the center of the clamping ring body (1); wherein: A pair of matching arc-shaped buckles are provided in the opening (2) of the clamping ring body (1), and the pair of arc-shaped buckles include an inner arc-shaped buckle (3) formed on one side of the opening (2) and an outer arc-shaped buckle (4) formed on the other side of the opening (2); the inner arc-shaped buckle (3) has an outer buckle head (31) radially facing outward, and the outer arc-shaped buckle (4) has an inner buckle head (41) radially facing inward, and the outer buckle head (31) and the inner buckle head (41) are mutually engaged to limit the expansion range of the clamping ring body (1) when the clamping ring body (1) is deformed and expanded.
2. The open clamping ring according to claim 1 is characterized in that: The clamping ring body (1) is formed with two arc-shaped notches (5) for threading, and a protrusion (6) is formed between the two arc-shaped notches (5).
3. The open clamping ring according to claim 2 is characterized in that: The protrusion (6) and the opening (2) are 180 degrees apart in the circumferential direction on the clamping ring body (1).
4. The open clamping ring according to claim 3 is characterized in that: A plurality of weight-reducing grooves (7) are provided on the top surface of the clamping ring body (1).
5. The open clamping ring according to claim 4 is characterized in that: A semicircular clamping block (32) is arranged on the top surface of the inner arc-shaped clamping buckle (3).
6. The open clamping ring according to claim 5 is characterized in that: A force-bearing inclined surface (8) for bearing pressure is arranged on the outer peripheral surface of the clamping ring body (1).
7. The open clamping ring according to claim 6 is characterized in that: The arc-shaped notch (5) is formed with a guide slope (51) for guiding threading.