Antiskid brake disc

Abstract

The utility model relates to an anti-skidding brake disc which comprises a disc body, a shaft hole is formed in the center of the disc body, a plurality of heat dissipation hole sets are formed in the outer ring of the disc body at equal intervals, each heat dissipation hole set is composed of two notches which are arranged in a splayed shape, the notches inwards form extending steps, and the thickness of each extending step is smaller than that of the disc body. A plurality of friction increasing protruding points are arranged on the surface of the extending step. The splayed notches are formed in the outer ring of the disc body, meanwhile, the extending steps are inwards arranged on the notches, the height difference is formed between the extending steps and the surface of the disc body, compared with the mode that the notches are directly formed, the flexible brake blocks can be pressed into the notches more easily, in addition, the friction increasing protruding points are arranged on the extending steps, the brake effect is further improved, and the service life of the brake disc is prolonged. And the slipping phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of brake discs, in particular to an anti-skid brake disc. Background Art

[0002] The brake disc is a circular disc that rotates with the bicycle wheel when the bicycle is moving. When braking, the brake pads on the brake caliper clamp the brake disc to generate braking force. The outer ring surface of the existing brake disc is mostly smooth, and the brake pads of bicycles are mostly soft brake pads, which have poor braking effect. Utility Model Content

[0003] In view of the deficiencies in the background technology, the utility model provides an anti-skid brake disc.

[0004] The technical solution adopted by the utility model is: an anti-skid brake disc, including a disc body, an axial hole is provided at the center of the disc body, a plurality of heat dissipation hole groups are provided at equal intervals on the outer ring of the disc body, the heat dissipation hole group is composed of two notches arranged in an "eight" shape, the notches form an extended step with a thickness less than the thickness of the disc body inwardly, and a plurality of friction-increasing protrusions are provided on the surface of the extended step.

[0005] Furthermore, the height difference h between the extended step surface and the disc body surface is 0.5 mm-1 mm.

[0006] Furthermore, a plurality of arc-shaped concave surfaces are provided at equal intervals on the outer ring of the disk body, and the ratio of the number of the arc-shaped concave surfaces to the number of the heat dissipation hole groups is 2:1.

[0007] Furthermore, a connecting seat with a triangular structure is integrally formed on the inner side of the heat dissipation hole group, and a mounting hole is provided on the top of the connecting seat.

[0008] Furthermore, a weight-reducing hole is provided on the connecting seat, and a reinforcing rib with an "X"-shaped structure is provided in the weight-reducing hole.

[0009] Furthermore, two arc-shaped strip reinforcement ribs are provided between the connecting seats.

[0010] Furthermore, the angle a between the notches is 140-145°.

[0011] The beneficial effects of the utility model are as follows: the utility model arranges an "eight"-shaped notch on the outer ring of the disk body, and arranges an extending step inward of the notch to form a height difference between the extending step and the disk body surface. Compared with directly setting the notch, it is more conducive to pressing the soft brake block into the notch. In addition, friction-increasing convex points are arranged on the extending step to further improve the braking effect and avoid slipping.

[0012] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0013] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic cross-sectional view at the notch.

[0016] Figure 3 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0017] Figure 1-3 Middle: 1. disc body; 2. shaft hole; 3. notch; 4. extension step; 5. friction-increasing convex point; 6. arc-shaped concave surface; 7. connecting seat; 8. mounting hole; 9. weight-reducing hole; 10. reinforcing rib; 11. strip reinforcing rib. DETAILED DESCRIPTION

[0018] 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 of 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.

[0019] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] The utility model provides an anti-skid brake disc.

[0021] In this embodiment, refer to Figure 1-3 The anti-skid brake disc comprises a disc body 1, an axial hole 2 is arranged at the center of the disc body, a plurality of heat dissipation hole groups are arranged at equal intervals on the outer ring of the disc body, the heat dissipation hole group is composed of two notches 3 arranged in an "eight" shape, the notch 3 forms an extended step 4 with a thickness less than the thickness of the disc body inwardly, and a plurality of friction-increasing protrusions 5 are arranged on the surface of the extended step 4.

[0022] In the above technical solution, an "eight"-shaped groove is arranged on the outer ring of the disk body, and an extending step is arranged inwardly of the groove to form a height difference with the surface of the disk body. Compared with directly setting the groove, it is more conducive to pressing the soft brake block into the groove. In addition, friction-increasing bumps are arranged on the extending step to further improve the braking effect and avoid slipping.

[0023] Specifically, the height difference h between the extended step surface and the disk body surface is 0.5mm-1mm; a number of arc-shaped concave surfaces 6 are evenly spaced on the outer ring of the disk body, and the ratio of the number of the arc-shaped concave surfaces 6 to the number of the heat dissipation hole groups is 2:1; a triangular-structured connecting seat 7 is integrally formed on the inner side of the heat dissipation hole group, and a mounting hole 8 is provided on the top of the connecting seat 7.

[0024] The mounting holes are used to install and fix the brake disc. In addition to increasing the friction on the brake disc surface and improving the braking effect, the heat dissipation holes can also increase the heat dissipation effect of the brake disc and increase its service life.

[0025] Specifically, a weight-reducing hole 9 is provided on the connecting seat, and a reinforcing rib 10 with an "X"-shaped structure is provided in the weight-reducing hole 9; two arc-shaped strip reinforcing ribs 11 are provided between the connecting seats, and the angle a between the notches is 140-145°.

[0026] In the above technical solution, by setting a connecting seat in the shaft hole, increasing the diameter of the shaft hole, and setting a weight-reducing hole on the connecting seat, the weight of the brake disc is reduced while ensuring the installation strength of the brake disc, reducing the material and cost. In addition, by setting reinforcing ribs and strip reinforcing ribs, the mechanical strength of the brake disc is ensured.

[0027] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept of the utility model is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent right.

Claims

1. An anti-skid brake disc, comprising a disc body, wherein a shaft hole is provided at the center of the disc body, and characterized in that: The outer ring of the disk body is provided with a plurality of heat dissipation hole groups at equal intervals, and the heat dissipation hole groups are composed of two notches arranged in an "eight" shape, and the notches form an extended step with a thickness less than the thickness of the disk body inwardly, and a plurality of friction-increasing protrusions are provided on the surface of the extended step.

2. The anti-skid brake disc according to claim 1, characterized in that: The height difference h between the extended step surface and the disc body surface is 0.5mm-1mm.

3. The anti-skid brake disc according to claim 1, characterized in that: The outer ring of the disk body is provided with a plurality of arc-shaped concave surfaces at equal intervals, and the ratio of the number of the arc-shaped concave surfaces to the number of the heat dissipation hole groups is 2:

1.

4. The anti-skid brake disc according to claim 3, characterized in that: A connecting seat with a triangular structure is integrally formed on the inner side of the heat dissipation hole group, and a mounting hole is arranged on the top of the connecting seat.

5. The anti-skid brake disc according to claim 4, characterized in that: The connecting seat is provided with a weight-reducing hole, and the weight-reducing hole is provided with a reinforcing rib of an "X"-shaped structure.

6. The anti-skid brake disc according to claim 4, characterized in that: Two arc-shaped strip reinforcement ribs are arranged between the connecting seats.

7. The anti-skid brake disc according to claim 1, characterized in that: The angle a between the notches is 140-145°.

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