bicycle hydraulic brake

Abstract

The invention relates to the field of brakes, and aims at providing a bicycle hydraulic brake. The bicycle hydraulic brake comprises a brake pump assembly, a brake caliper assembly and a connecting oil pipe. The brake caliper assembly comprises a shell, two caliper bodies, two pressing plates, two brake sheets, a U-shaped reed, a guide rod and a shaft elastic check ring, wherein the shell is connected with a bicycle body, two oil cylinder holes and two brake pistons located in the oil cylinder holes are arranged on the opposite end faces of the caliper bodies respectively, the caliper bodies are connected with the shell, the two pressing plates are located in the brake pistons respectively, guiding holes are formed in one ends of the pressing plates, the two brake sheets are connected with the inner sides of the pressing plates respectively, two through holes are formed in the two side edges of the U-shaped reed, the two ends of the U-shaped reed are connected with one ends of the brake sheets respectively, a stop block is arranged at one end of the guide rod, a clamping groove is formed in the other end of the guide rod, the guide rod penetrates through the two caliper bodies, the two guiding holes and the two through holes, the shaft elastic check ring is clamped in the clamping groove to be fixed, and oil inlet holes communicated with the two oil cylinder holes respectively are formed in the outer sides of the caliper bodies. According to the bicycle hydraulic brake, the two brake pistons of the brake caliper assembly push the corresponding brake sheets through the pressing plates respectively to perform braking, the braking force on the two sides of a rim is balanced, and the abrasion of the two brake sheets is even.

Description

technical field [0001] The invention relates to the field of brakes, in particular to a bicycle hydraulic brake. Background technique [0002] The invention of Chinese patent application number: 201210443864.1 discloses a hydraulic rim brake; a hydraulically actuated rim brake has a pair of brake arms that can rotate about a common axis, which is the The assembly is mounted to the axis of a single bolt on the bicycle; the system has a piston slidably set in a cylinder of the piston. The hydraulic rim brake has the disadvantages that when the thickness of the rim is different or the position of the rim is offset, the braking force of the pair of brake arms on both sides of the rim is uneven and the wear of the two brake pads is uneven; therefore, Designing a bicycle hydraulic brake that balances the braking force on both sides of the rim and wears evenly on the two brake pads has become an urgent problem to be solved. Contents of the invention [0003] The purpose of the ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the existence of the current hydraulic rim brake, when the thickness of the rim is different or the position of the rim is offset, a pair of brake arms balance the braking force on both sides of the rim and the wear of the two brake pads Uneven deficiencies, providing a bicycle hydraulic brake with equalized braking force on both sides of the rim and uniform wear on both brake pads

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