Four-cylinder oil pressure type disc brake

Abstract

The utility model discloses a four-cylinder oil pressure type disc brake device which comprises a disc brake device body, a disc brake groove is formed in the disc brake device body, and two oil cylinders are arranged at the two ends of the disc brake groove respectively. The brake structure is arranged in the disc brake groove and corresponds to the position of the movable end of the oil cylinder, and the brake structure is driven by the oil cylinder to brake; the disc is located in the center of the brake structure, and the disc is clamped through the brake structure so that braking work can be achieved. The brake transmission efficiency is high, the brake is stable, the brake force is strong, the adaptability is wide, and the performance is more stable and more reliable.

Description

Technical Field

[0001] The utility model relates to a disc brake, in particular to a four-cylinder hydraulic disc brake. Background Art

[0002] like Figure 1 As shown in the figure, when the lower caliper brakes, the kinetic energy is converted into heat energy through the friction between the brake pad and the disc. The size of the oil cylinder is proportional to the clamping force of the brake pad on the disc, that is, the larger the oil cylinder, the greater the clamping force, the greater the friction, the stronger the braking performance, and the smoother the braking. The existing four-cylinder caliper has a small cylinder diameter, and the braking performance needs to be optimized. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a four-cylinder hydraulic disc brake, which is suitable for the disc brake structure of bicycles, power-assisted bicycles, and electric vehicles. The disc brake clamp adopts a four-cylinder separate design, which effectively improves the braking performance and stability of the clamp; the powerful braking ability is more guaranteed for green and safe riding.

[0004] The utility model four-cylinder hydraulic disc brake is realized by the following technical solutions, including:

[0005] A disc brake body, wherein a disc brake groove is provided on the disc brake body, and two oil cylinders are provided at both ends of the disc brake groove;

[0006] The brake structure is arranged in the disc brake groove and corresponds to the movable end position of the oil cylinder, and the brake structure is driven by the oil cylinder to brake;

[0007] The disc is located in the center of the brake structure, and the brake structure clamps the disc to achieve braking.

[0008] As a preferred technical solution, the disc brake body is spliced ​​by a front cover and a rear cover, and the disc brake groove is arranged in the center of the front cover and the rear cover, and the oil cylinder is respectively arranged on the inner side of the front cover and the rear cover.

[0009] As a preferred technical solution, the brake structure includes a spring and a brake pad;

[0010] The spring sheet is located on the side of the two brake pads and is connected to the brake pads; the upper ends of the spring sheet and the brake pads are both provided with through holes, a latch screw is provided on the disc brake body, and the latch screw passes through the through holes on the upper ends of the spring sheet and the brake pads and is locked on the disc brake body; the disc is arranged between the two brake pads.

[0011] As a preferred technical solution, one of the oil cylinders on both sides of the disc brake groove is enlarged.

[0012] As a preferred technical solution, an oil circuit is provided on the disc brake body, and the oil circuit is connected to the oil cylinder; a rotating head is provided at the first oil inlet end of the oil circuit, and an oil pipe is connected to the rotating head; an oil filling screw is connected to the second oil inlet end of the oil circuit.

[0013] As a preferred technical solution, the front cover and the rear cover are fixed by locking screws.

[0014] The beneficial effects of the utility model are as follows: the brake transmission of the utility model has high braking efficiency, stable braking, strong braking force, wide adaptability, and more stable and reliable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the prior art;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the disc brake structure of the utility model.

[0020] Description of reference numerals:

[0021] 1. Rotating head; 2. Spring piece; 3. Brake pad; 4. Oil cylinder; 5. Latch screw; 6. Disc brake body; 7. Locking screw; 8. Oil filling screw; 9. Oil pipe; 10. Disc. DETAILED DESCRIPTION

[0022] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0023] like Figure 2-Figure 4 As shown, a four-cylinder hydraulic disc brake of the utility model comprises:

[0024] A disc brake body 6, wherein the disc brake body 6 is provided with a disc brake groove, and two oil cylinders 4 are provided at both ends of the disc brake groove;

[0025] The brake structure is arranged in the disc brake groove and corresponds to the movable end position of the oil cylinder 4. The oil is guided by the oil pipe 9 to push the four oil cylinders 1 to push out the brake pads 3 at the same time, and the disc 10 is clamped to achieve a stable braking effect;

[0026] The disc is located at the center of the brake structure, and the brake structure clamps the disc 10 to achieve braking.

[0027] In this embodiment, the disc brake body 6 is formed by splicing a front cover and a rear cover, and the disc brake groove is arranged at the center of the front cover and the rear cover, and the oil cylinder 4 is arranged at the inner side of the front cover and the rear cover respectively.

[0028] In this embodiment, the brake structure includes a spring piece 2 and a brake shoe 3;

[0029] The spring piece 2 is located on the side of the two brake pads 3 and is connected to the brake pads 3; the upper ends of the spring piece 2 and the brake pads 3 are both provided with through holes, and the disc brake body 6 is provided with a latch screw 5, and the latch screw 5 passes through the through holes at the upper ends of the spring piece 2 and the brake pads and is locked on the disc brake body 6; the disc is arranged between the two brake pads 3.

[0030] In addition, the joint between the disc brake body and the oil pipe adopts a fully sealed rotary joint, which has better sealing performance than the olive head copper sleeve connection method.

[0031] Among them, one of the oil cylinders 4 on both sides of the disc brake groove is enlarged. On the basis of the existing four cylinders, the cylinder diameters of two of the oil cylinders are increased, and the large piston oil cylinder provides a stronger braking force.

[0032] Among them, an oil circuit is provided on the disc brake body 6, and the oil circuit is connected to the oil cylinder 4; a rotating head 1 is provided at the first oil inlet end of the oil circuit, and an oil pipe 9 is connected to the rotating head 1. During installation, the rotating head 4 can be rotated to facilitate the adjustment of the direction of the oil pipe 9 and better avoid interference between the oil pipe and the frame; an oil filling screw 8 is connected to the second oil inlet end of the oil circuit.

[0033] In addition, the front cover and the rear cover are fixed by locking screws 7.

[0034] Here’s how it works:

[0035] Apply pressure to the upper handle, and the pressure goes directly from the oil pipe to the four-cylinder hydraulic disc brake, thereby pushing the four oil cylinders on both sides of the hydraulic disc brake to push out the brake pads at the same time; the brake pads on both sides clamp the disc at the same time, completing the braking action through friction, and the disc remains in the center without swinging, achieving a smooth braking effect.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A four-cylinder hydraulic disc brake, characterized in that: include: A disc brake body (6), wherein a disc brake groove is provided on the disc brake body (6), and two oil cylinders (4) are provided at both ends of the disc brake groove; A brake structure, wherein the brake structure is arranged in the disc brake groove and corresponds to the movable end position of the oil cylinder (4), and the oil cylinder (4) drives the brake structure to brake; A disc (10), wherein the disc (10) is located at the center of the brake structure, and the brake structure clamps the disc (10) to achieve braking operation; The disc brake body (6) is formed by splicing a front cover and a rear cover, and the disc brake groove is arranged in the center of the front cover and the rear cover, and the oil cylinder (4) is arranged on the inner side of the front cover and the rear cover respectively; The brake structure comprises a spring sheet (2) and a brake pad (3); the spring sheet (2) is located on the side of the two brake pads (3) and is connected to the brake pads (3); the upper ends of the spring sheet (2) and the brake pads (3) are both provided with through holes, a latch screw (5) is provided on the disc brake body (6), and the latch screw (5) passes through the through holes at the upper ends of the spring sheet (2) and the brake pads and is locked on the disc brake body (6); the disc is arranged between the two brake pads (3); one of the oil cylinders (4) on both sides of the disc brake groove is enlarged; The disc brake body (6) is provided with an oil circuit, and the oil circuit is connected to the oil cylinder (4); a rotating head (1) is provided at a first oil inlet end of the oil circuit, and an oil pipe (9) is connected to the rotating head (1); and an oil filling screw (8) is connected to a second oil inlet end of the oil circuit.

2. The four-cylinder hydraulic disc brake according to claim 1, characterized in that: The front cover and the rear cover are fixed together by locking screws (7).

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