Light-weight aluminum type high-strength bicycle disc brake disc
By designing a uniformly distributed weight reduction structure and sand discharge groove on the bicycle disc brake disc, combined with the heat dissipation hole, the problems of insufficient rigidity and insufficient sewage discharge capacity of the existing disc brake disc are solved, and lightweight, high-strength and good sewage discharge are achieved. Performance ensures riding safety and reliability.
Patent Information
- Application Number
- CN202421282712.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-06-06
AI Technical Summary
Due to the complex structure and large weight of existing bicycle disc brake discs, the rigidity and insufficient sewage discharge capacity are insufficient, which affects the riding experience and safety, and may lead to a reduction in braking force in severe weather.
A lightweight aluminum-type high-strength bicycle disc brake disc is designed, adopting a uniformly distributed weight reduction structure and sand discharge groove, combined with heat dissipation holes, which improves the rigidity and sewage discharge capacity of the disc brake disc to ensure stable system under harsh environments. Dynamic performance.
The disc brake disc is light weight, high strength and strong discharge capacity, ensuring safety and reliability during riding, and reminding users to replace it in time through red marks to avoid safety risks caused by wear.
Smart Images
Figure CN222277318U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bicycle disc brake discs, in particular to a lightweight aluminum high-strength bicycle disc brake disc. Background Art
[0002] The development of bicycle disc brakes is a process from origin to widespread application, and the continuous pursuit of performance improvement and safety innovation. Initially, disc brake technology was mainly used in automobiles and motorcycles, and then gradually expanded to the bicycle field. From the early cable-pull disc brakes, which achieved braking through cable operation, to the rise of hydraulic disc brakes, which use oil as a medium to provide more stable and powerful braking force, bicycle disc brake technology has made continuous breakthroughs. The application of new materials and new technologies has further improved the performance and safety of bicycle disc brakes, bringing a more comfortable and safe experience to riders. Looking to the future, with the continuous advancement of science and technology and changes in market demand, bicycle disc brake technology will continue to develop and innovate, bringing more possibilities for cycling.
[0003] However, due to the complex structure of the disc brake system, its weight is relatively large, which may cause certain troubles for cyclists who pursue lightweight. The installation and adjustment of disc brakes require high technical requirements. If they are improperly operated or adjusted inaccurately, they may cause problems such as brake sway and abnormal noise, affecting the riding experience and safety. In certain specific environments, such as humid or muddy environments, disc brakes may produce noise, causing inconvenience to riders and others. When mud and sand adhere to the disc brake disc, small foreign objects between the brake pads and the disc brake disc will be driven to roll friction. The friction force of rolling friction is much smaller than that of sliding friction, which greatly reduces the braking force. It can cause danger in bad weather and when braking is needed. In order to reduce weight, existing disc brake discs also have many heat dissipation holes in the contact with the brake pads. Too many holes may affect the rigidity and strength of the disc brake disc, and may also cause a decrease in braking force. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the deficiencies in the prior art, the utility model provides a lightweight aluminum high-strength bicycle disc brake disc, which has the advantages of light weight, high strength, good rigidity and strong sewage discharge capacity, and solves the problems of insufficient rigidity, heavy weight and insufficient sewage discharge capacity.
[0006] (II) Technical solution
[0007] In order to achieve the above-mentioned purposes of light weight, high strength, good rigidity and strong sewage discharge capacity, the utility model provides the following technical solutions: a lightweight aluminum high-strength bicycle disc brake disc, comprising a disc brake disc body, the disc brake disc body comprising a central hub through hole, a bolt mounting hole, a weight reduction structure, a sand discharge groove and a heat dissipation hole, the bolt mounting hole is located in the concave part of the central hub through hole, the weight reduction structure is evenly distributed between the bolt mounting holes, and the sand discharge groove and the heat dissipation hole are located on the outside of the disc brake disc body.
[0008] Preferably, the heat dissipation holes are arranged in groups of four, and together with the sand removal grooves, form six groups of heat dissipation and rejection structures, which are alternately and evenly arranged on the outside of the disc brake body.
[0009] Preferably, the weight-reducing structure comprises a first weight-reducing hole, a second weight-reducing hole, a third weight-reducing hole and a fourth weight-reducing hole, the second weight-reducing hole is in the shape of an elongated arc, and the first weight-reducing hole, the third weight-reducing hole and the fourth weight-reducing hole are in the shape of a triangle.
[0010] Preferably, the sand discharge groove is wide at the top and narrow at the bottom, and has a V-shaped cross-section. The depth of the sand discharge groove gradually increases from the root to the edge. There is a notch in the middle of the sand discharge groove, and there is a red marker in the notch.
[0011] Preferably, the sand removal grooves are provided on both sides of the disc brake body, and the sand removal grooves are symmetrically distributed.
[0012] (III) Beneficial effects
[0013] Compared with the prior art, the utility model provides a lightweight aluminum high-strength bicycle disc brake disc, which has the following beneficial effects:
[0014] 1. This lightweight aluminum high-strength bicycle disc brake has three sets of weight-reducing structures evenly arranged in the middle of the disc brake. The weight-reducing holes are triangular and arc-shaped. The triangle is known for its stability and can provide uniform support in multiple directions, while the arc can smoothly disperse stress and reduce local high-stress areas that may be generated during braking. It can maintain sufficient structural strength while reducing weight. The whole is made of aluminum. Compared with steel disc brakes, it is lighter and has better thermal conductivity. It can reduce thermal deformation and wear of the disc brake and maintain relatively stable braking performance.
[0015] 2. The lightweight aluminum high-strength bicycle disc brake disc can push foreign objects on the surface of the disc brake disc into the sand discharge groove through the brake pads through the sand discharge grooves evenly distributed on the disc brake disc. Under the centrifugal force of the wheel rotation, the foreign objects can be quickly sent out of the disc brake disc through the sand discharge grooves. During riding, the friction between the disc brake disc and the brake pad will generate a large amount of dust and sand. When riding in sandy and muddy environments, a large amount of mud and debris will be encountered. If these impurities adhere to the disc brake disc, when taking braking measures, due to the presence of small particles of impurities, the original space between the brake pads and the brake pads will be The sliding friction turns into rolling friction, which will not only affect the braking performance, but may also aggravate the wear of the disc brake disc. The design of the sand discharge groove can effectively discharge these impurities and keep the disc brake disc clean and smooth. The sand discharge groove is designed to be wide at the top and narrow at the bottom, with a V-shaped cross-section. The depth of the sand discharge groove gradually increases from the root to the outer edge, which can ensure that during riding, as the disc brake disc continues to wear, the width of the sand discharge groove will not drop drastically, and sufficient sand discharge capacity can be provided throughout the service life of the disc brake disc, ensuring the safety of the riding process and improving the overall reliability of the disc brake disc.
[0016] 3. The disc brake disc is designed to be circular as a whole, which has better compatibility. It can be used with brake pads of various types and specifications, and can also adapt to a variety of different models and riding environments. The sand discharge groove is a double-sided symmetrical design, evenly distributed on both sides of the disc brake disc body, which increases the heat dissipation area and is conducive to uniform heat dissipation. The disc is not easy to deform due to uneven heat dissipation. Good heat dissipation performance also avoids the locking phenomenon between the brake pads and the disc brake disc due to overheating, effectively improving safety during riding.
[0017] 4. There is a gap in the middle of the sand groove, and there is a red marker inside the gap. When the disc brake disc gradually wears out, the sand groove starts from the root and gradually disappears due to wear. When the red marker appears on the surface of the disc brake disc, it means that the service life of the disc brake disc has been exhausted and continuing to use it will be risky. The red marker serves as a prompt to intuitively remind the user to pay attention to the use of the disc brake disc. No professional measuring tools are required, which greatly facilitates the user's judgment and replacement and ensures the user's safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the structure of the utility model.
[0020] In the figure: 1-disc brake body, 2-central hub through hole, 3-bolt mounting hole, 4-weight reduction structure, 41-first weight reduction hole, 42-second weight reduction hole, 43-third weight reduction hole, 44-fourth weight reduction hole, 5-sand discharge groove, 6-heat dissipation hole, 7-notch. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "left", "right", "front", "back", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0023] See also Figure 1 In the middle of the disc brake disc body 1 is a central hub through hole 2, which is used to connect with the wheel part. In the recess of the central hub through hole 2, three bolt mounting holes 3 are evenly arranged. The disc brake disc is fixed to the wheel by bolts. Three groups of weight reduction structures 4 are evenly distributed on the periphery of the bolt mounting hole 3. There are heat dissipation holes 6 and sand discharge grooves 5 on the outside of the weight reduction structure 4. The heat dissipation holes 6 are arranged in groups of four and are evenly distributed with the sand discharge grooves 5 alternately on the outside of the disc brake disc body 1. The outside of the disc brake disc is the main braking area. When braking, the brake pad is pressed on the disc brake disc by force, and a large amount of heat is generated by friction, which converts kinetic energy into heat energy to achieve the braking effect. If there is a foreign object between the two, the foreign object will perform rolling friction to reduce the friction force. When braking, the foreign object will perform rolling friction to reduce the friction force. During the process, the brake pad pushes the foreign matter into the sand discharge groove 5, and the foreign matter is discharged by the centrifugal force when the wheel rotates. At the same time, the sand discharge groove 5 increases the surface area of the disc brake disc, and cooperates with the heat dissipation holes to achieve a good heat dissipation effect. The sand discharge groove 5 is a V-groove design, and its opening depth gradually deepens from the root to the edge, which means that the disc brake disc can guarantee excellent sand discharge ability throughout its life cycle. There is a notch 7 in the middle of the sand discharge groove 5, and there is a red marker in the notch 7. As the disc brake disc continues to wear, the sand discharge groove 5 begins to disappear from the shallower root. When the red marker is exposed to the surface, it means that the service life of the disc brake disc has been exhausted and a new disc brake disc needs to be replaced. The remaining service life of the disc brake disc can be estimated and judged without professional tools, which is simple and convenient.
[0024] See also Figure 2The weight-reducing structure is composed of four parts, namely the first weight-reducing hole 41, the second weight-reducing hole 42, the third weight-reducing hole 43 and the fourth weight-reducing hole 44, wherein the first weight-reducing hole 41, the third weight-reducing hole 43 and the fourth weight-reducing hole 44 are all triangular, and the edges close to the central hub through hole 2 and the bolt mounting hole 3 are arc-shaped, ensuring that the distance between the holes is not too close, and sufficient distance is maintained between the four weight-reducing holes to ensure the overall strength of the disc brake. The triangle has good stability and can provide uniform support in multiple directions to ensure sufficient rigidity and stability during braking. The second weight-reducing hole 42 is in a long arc shape as a whole and is located at the outermost side of the weight-reducing structure. The arc structure can smoothly disperse stress and reduce local high stress areas that may occur during braking. Through the cooperation of these two structures, the disc brake can work stably at high speeds and under emergency conditions.
[0025] Working principle: After installing the disc brake body 1 in the specified direction, tighten the bolts to complete the fixation of the disc brake body 1. During driving, when the disc brake disc is stained with mud, sand and other debris, during the braking process, the brake pads squeeze the disc brake disc, and the debris in it is pushed into the sand discharge groove 5 by the brake pads, and flies out of the disc brake disc under the action of centrifugal force. The sand discharge groove 5 is guiding. Compared with traditional heat dissipation holes, liquids such as mud and water are more easily discharged from the sand discharge groove, which helps to reduce the wear of the disc brake disc. In addition, the sand discharge groove can reduce the accumulation of debris on the surface of the disc brake disc, thereby reducing the vibration and noise caused by debris when the disc brake disc rotates at high speed, thereby improving the riding comfort. As the disc brake disc wears, when the red marker in the notch in the middle of the sand discharge groove is exposed on the surface, it means that the service life of the disc brake disc has been exhausted. The red marker serves as a reminder to remind the user that the disc brake disc should be replaced in time, and there will be risks if it is continued to be used.
[0026] In summary, the lightweight aluminum high-strength bicycle disc brake has three groups of weight-reducing structures 4 evenly arranged in the middle of the disc brake body 1, wherein the weight-reducing holes are triangular and arc-shaped. The triangle is known for its stability and can provide uniform support in multiple directions, while the arc-shaped can smoothly disperse stress and reduce local high-stress areas that may be generated during braking. It can maintain sufficient structural strength while reducing weight. The whole is made of aluminum material, which is lighter and has better thermal conductivity than steel disc brakes. It can reduce thermal deformation and wear of the disc brake and maintain relatively stable braking performance.
[0027] The disc brake disc can push foreign objects on the surface of the disc brake disc into the sand discharge grooves through the brake pads through the sand discharge grooves evenly distributed on the disc brake disc. Under the centrifugal force of the rotation of the wheel, the foreign objects can be quickly sent out of the disc brake disc through the sand discharge grooves. During riding, the friction between the disc brake disc and the brake pads will generate a large amount of dust and sand. When riding in sandy and muddy environments, a large amount of mud and debris will be encountered. If these impurities adhere to the disc brake disc, when braking measures are taken, due to the presence of small particles of impurities, the original sliding friction between the brake pads and the brake pads will change to The sand discharge groove is designed to effectively discharge these impurities and keep the disc brake disc clean and smooth. The sand discharge groove is designed to be wide at the top and narrow at the bottom, with a V-shaped cross section. The depth of the sand discharge groove gradually increases from the root to the outer edge, which can ensure that the width of the sand discharge groove will not drop drastically as the disc brake disc continues to wear during riding. It can provide sufficient sand discharge capacity throughout the life cycle of the disc brake disc, ensuring the safety of the riding process and improving the overall reliability of the disc brake disc. The disc brake disc is designed as a whole in a circular shape, which has better compatibility. It can be used with brake pads of various types and specifications, and can also adapt to a variety of different models and riding environments. The sand discharge groove is a double-sided symmetrical design, evenly distributed on both sides of the disc brake disc body, increasing the heat dissipation area, which is conducive to uniform heat dissipation. The disc brake disc is not easy to deform due to uneven heat dissipation. Good heat dissipation performance also avoids the locking phenomenon between the brake pad and the disc brake disc due to overheating, effectively improving the safety during riding. There is a gap in the middle of the sand drainage groove and a red marker inside the gap. When the disc brake disc gradually wears out, the sand drainage groove starts from the root and gradually disappears due to wear. When the red marker appears on the surface of the disc brake disc, it means that the service life of the disc brake disc has been exhausted and continuing to use it will be risky. The red marker serves as a prompt to intuitively remind the user to pay attention to the use of the disc brake disc. No professional measuring tools are required, which greatly facilitates the user's judgment and replacement and ensures the user's safety.
[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A lightweight aluminum high-strength bicycle disc brake disc, characterized by: The invention comprises a disc brake disc body (1), wherein the disc brake disc body (1) comprises a central hub through hole (2), a bolt mounting hole (3), a weight reduction structure (4), a sand removal groove (5) and a heat dissipation hole (6), wherein the bolt mounting hole (3) is located in a recess of the central hub through hole (2), the weight reduction structure (4) is evenly distributed between the bolt mounting holes (3), and the sand removal groove (5) and the heat dissipation hole (6) are located on the outside of the disc brake disc body (1).
2. The lightweight aluminum high-strength bicycle disc brake disc according to claim 1, characterized in that: The heat dissipation holes (6) are arranged in groups of four, and together with the sand discharge grooves (5) form six groups of heat dissipation and rejection structures, which are alternately and evenly arranged on the outside of the disc brake body (1).
3. The lightweight aluminum high-strength bicycle disc brake disc according to claim 1, characterized in that: The weight-reducing structure (4) comprises a first weight-reducing hole (41), a second weight-reducing hole (42), a third weight-reducing hole (43) and a fourth weight-reducing hole (44); the second weight-reducing hole (42) is in the shape of an elongated arc, and the first weight-reducing hole (41), the third weight-reducing hole (43) and the fourth weight-reducing hole (44) are in the shape of a triangle.
4. The lightweight aluminum high-strength bicycle disc brake disc according to claim 1, characterized in that: The sand discharge groove (5) is wide at the top and narrow at the bottom, and has a V-shaped cross section. The depth of the sand discharge groove (5) gradually increases from the root to the edge. There is a notch (7) in the middle of the sand discharge groove (5), and a red marker is provided in the notch (7).
5. The lightweight aluminum high-strength bicycle disc brake disc according to claim 1, characterized in that: The sand discharge grooves (5) are arranged on both sides of the disc brake body (1), and the sand discharge grooves (5) are symmetrically distributed.