Disc brake device for bicycle
By designing disc brake devices for bicycles, including disc brakes and hollow elliptical heat dissipation holes, the problems of insufficient sealing performance of traditional disc brakes and difficult to replace brake pads are solved, achieving higher sealing and easier to replace brake pads.
Patent Information
- Application Number
- CN202422022370.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The sealing performance of traditional hydraulic disc brakes is insufficient, resulting in oil leakage; the brake pads are not easy to disassemble and replace, and oil leakage is easily caused during replacement.
A disc brake device for bicycles is designed, including a disc brake and a disc brake pad. The outer diameter edge of the disc brake pad is hollowed out several elliptical heat dissipation holes, and the effective installation and replacement of the disc brake pad is achieved through the cooperation of the leaf spring and the piston.
It improves the sealing performance of the disc brake device, reduces the possibility of oil leakage, and the design of the disc brake pad makes it easier to disassemble and replace, extending its service life.
Smart Images
Figure CN222950282U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bicycles, in particular to a disc brake device for bicycles. Background Art
[0002] Disc brakes are composed of a brake disc connected to the wheel and a brake caliper on the edge of the disc. When braking, high-pressure brake oil pushes the brake pads to clamp the brake disc, thereby producing a braking effect. Among them, hydraulic disc brakes use oil as the medium. Pulling the brake handle activates the piston inside to compress the oil. The pressure goes directly from the oil pipe to the caliper, thereby pushing the piston in the caliper and driving the brake pads to clamp the disc. Traditional hydraulic disc brakes have insufficient sealing performance. After long-term use, the oil in the oil chamber is prone to leakage. At the same time, the brake pads are not easy to disassemble and replace, and oil leakage is also likely to occur during the replacement process. Utility Model Content
[0003] The utility model aims to solve the shortcomings in the prior art and proposes a disc brake device for a bicycle.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A disc brake device for a bicycle comprises a disc brake and a disc brake pad, wherein the disc brake pad is placed on one side of the disc brake; a disc brake cover is provided at one end of the disc brake, and a leaf spring and two symmetrical pistons are installed between the disc brake and the disc brake cover via a latch; one end of the disc brake pad is placed between the two pistons, and the disc brake pad is sleeved on a wheel shaft; a plurality of elliptical heat dissipation holes arranged in a circular row are hollowed out on the outer diameter edge of the disc brake pad.
[0006] Preferably, an inner opening stud is installed in the disc brake.
[0007] Preferably, low-pressure PE particles are mounted on the disc brake via hexagonal flat-end set screws.
[0008] Preferably, the disc brake and the disc brake cover are fixed by cylindrical head screws.
[0009] Preferably, the center of the disc brake pad is hollowed out for inserting into the center socket of the hub.
[0010] Preferably, the eccentricity of the elliptical heat dissipation holes is between 0.4 and 0.6, a plurality of hub lock holes arranged in a circular array are hollowed out at the center of the disc brake pad, a plurality of main heat dissipation holes in a parallelogram shape and arranged in a circular array are hollowed out on the outside of the hub lock hole, a small reinforcing disc is provided at the inner ends of the two main heat dissipation holes, and a plurality of auxiliary heat dissipation holes in a fan shape and arranged in a circular array are hollowed out at the outer ends of the two main heat dissipation holes.
[0011] Preferably, a plurality of elliptical heat dissipation holes arranged in a circular shape are hollowed out on the outer diameter edge of the disc brake pad, and the eccentricity of the elliptical heat dissipation holes is 0.5.
[0012] Preferably, the outer diameter of the disc brake pad is between 140 and 210 mm, and the center-to-center distance between the hub lock hole and the center of the disc brake pad is 45 mm.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model designs a disc brake device for a bicycle, wherein a center plug hole is in the shape of a spur gear with a number of teeth equal to 6, an outer diameter of the disc brake pad is 160 mm, and a hole center distance between a hub lock hole and a center of the disc brake pad is 45 mm, an outer diameter edge of the disc brake pad is hollowed out to form elliptical heat dissipation holes arranged in a circular row, a connecting line between two ends of a long semi-axis of the elliptical heat dissipation hole and a connecting line from a center of the disc brake pad to a center of the ellipse are not at an angle of 90°, but are arranged in an inclined shape along a rotation direction, having an excellent heat dissipation function and conforming to the principle of friction mechanics, and the main heat dissipation holes cooperate with the auxiliary heat dissipation holes, and the internal and external airflows have a good heat dissipation effect on the surrounding position of the brake clamp. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0016] Figure 1 It is a schematic diagram of the structure proposed by the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the disc brake proposed by the utility model;
[0018] Figure 3 The utility model is a schematic diagram of the structure of the disc brake pad.
[0019] Legend:
[0020] 1. Disc brake, 2. Disc brake pad, 3. Disc brake cover, 4. Leaf spring, 5. Piston, 21. Elliptical heat dissipation hole, 22. Center jack, 23. Hub lock hole, 24. Main heat dissipation hole, 25. Small disc. 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 "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; in addition, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] Reference Figures 1 to 3 As shown, a disc brake device for a bicycle comprises a disc brake 1 and a disc brake pad 2, wherein the disc brake pad 2 is placed on one side of the disc brake 1; a disc brake cover 3 is provided at one end of the disc brake 1, and a leaf spring 4 and two symmetrical pistons 5 are installed between the disc brake 1 and the disc brake cover 3 via a latch; one end of the disc brake pad 2 is placed between the two pistons 5, and the disc brake pad 2 is sleeved on the wheel axle; a plurality of elliptical heat dissipation holes 21 arranged in a circular shape are hollowed out on the outer diameter edge of the disc brake pad 2.
[0024] Among them, an inner opening stud is installed in the disc brake 1, and low-pressure PE particles are installed on the disc brake 1 through a hexagonal flat-end set screw. The disc brake 1 and the disc brake cover 3 are fixed by a cylindrical head screw, and the center of the disc brake pad 2 is hollowed out for inserting into the center socket 22 of the hub.
[0025] The eccentricity of the elliptical heat dissipation hole 21 is between 0.4 and 0.6. A plurality of hub lock holes 23 arranged in a circular array are hollowed out at the center of the disc brake pad 2. A plurality of main heat dissipation holes 24 in a parallelogram shape and arranged in a circular array are hollowed out on the outside of the hub lock hole 23. A reinforcing small disc 25 is provided at the inner end of the two main heat dissipation holes 24. A plurality of auxiliary heat dissipation holes in a fan shape and arranged in a circular array are hollowed out at the outer end of the two main heat dissipation holes 24.
[0026] The outer diameter edge of the disc brake pad 2 is hollowed out with a plurality of elliptical heat dissipation holes 21 arranged in a circular row, and the eccentricity of the elliptical heat dissipation holes is 0.5; the outer diameter of the disc brake pad 2 is between 140 and 210 mm, and the center-to-center distance between the hub lock hole 23 and the center of the disc brake pad 2 is 45 mm.
[0027] The center socket 22 is in the shape of a spur gear with 6 teeth. The outer diameter of the disc brake pad 2 is 160 mm, and the center-to-center distance between the hub lock hole 23 and the center of the disc brake pad 2 is 45 mm. The outer diameter edge of the disc brake pad 2 is hollowed out to form elliptical heat dissipation holes arranged in a circular row. In particular, the connecting line at both ends of the major semi-axis of the elliptical heat dissipation hole 21 is not at a 90° angle to the connecting line from the center of the disc brake pad 2 to the center of the ellipse, but is arranged in an inclined shape along the rotation direction. It has excellent heat dissipation function and conforms to the principles of friction mechanics. In addition, the main heat dissipation holes 24 cooperate with the auxiliary heat dissipation holes, and the internal and external airflows have a good heat dissipation effect on the surrounding position of the brake clamp.
[0028] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0029] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. A disc brake device for a bicycle, characterized in that: It includes a disc brake and a disc brake pad, wherein the disc brake pad is placed on one side of the disc brake; a disc brake cover is provided at one end of the disc brake, and a leaf spring and two symmetrical pistons are installed between the disc brake and the disc brake cover through a latch; one end of the disc brake pad is placed between the two pistons, and the disc brake pad is sleeved on the wheel shaft; a plurality of elliptical heat dissipation holes arranged in a circular shape are hollowed out on the outer diameter edge of the disc brake pad.
2. A disc brake device for a bicycle according to claim 1, characterized in that: An inner opening stud is installed in the disc brake.
3. A disc brake device for a bicycle according to claim 1, characterized in that: The disc brake is provided with low-pressure PE particles via hexagon socket flat-end set screws.
4. A disc brake device for a bicycle according to claim 1, characterized in that: The disc brake and the disc brake cover are fixed by cylindrical head screws.
5. A disc brake device for a bicycle according to claim 1, characterized in that: The center of the disc brake piece is hollowed out for inserting into the center plug hole of the hub.
6. A disc brake device for a bicycle according to claim 5, characterized in that: The eccentricity of the elliptical heat dissipation holes is between 0.4 and 0.6, a plurality of hub lock holes arranged in a circular array are hollowed out at the center of the disc brake pad, a plurality of main heat dissipation holes in a quadrilateral shape and arranged in a circular array are hollowed out on the outside of the hub lock hole, a small reinforcing disc is provided at the inner ends of the two main heat dissipation holes, and a plurality of auxiliary heat dissipation holes in a fan shape and arranged in a circular array are hollowed out at the outer ends of the two main heat dissipation holes.
7. A disc brake device for a bicycle according to claim 6, characterized in that: The outer diameter edge of the disc brake pad is hollowed out with a plurality of elliptical heat dissipation holes arranged in a circular row, and the eccentricity of the elliptical heat dissipation holes is 0.
5.
8. A disc brake device for a bicycle according to claim 6, characterized in that: The outer diameter of the disc brake pad is between 140 and 210 mm, and the center-to-center distance between the hub lock hole and the center of the disc brake pad is 45 mm.