BICYCLE BRAKE LEVER

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BICYCLE BRAKE LEVER

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XIE JIAWEN

A bicycle brake lever is used for being arranged on a bicycle handlebar and comprises a shell, a hydraulic assembly and a brake actuating assembly. The hydraulic assembly is arranged in the shell; the hydraulic assembly comprises a cylinder body, a piston and a connecting rod, the piston is movably located in the cylinder body, and the connecting rod is connected with the piston; the brake actuating assembly comprises a swing arm and a brake pull rod; the swinging arm is provided with a pivoting part, a first end part and a second end part which are connected, and the pivoting part is positioned between the first end part and the second end part; the pivoting part is pivoted on the cylinder body, and the first end part of the swinging arm is pivoted with the connecting rod; the brake pull rod is pivoted to the cylinder body, and the second end part of the swing arm is pivoted to the brake pull rod. When the brake pull rod is actuated, the brake pull rod drives the piston to move through the swing arm and the connecting rod, and oil pressure is generated in the cylinder body.

一种自行车刹车把手，用以装设于一车手把，包含一外壳、一液压组件及一刹车致动组件；液压组件设置于外壳内；液压组件包含一缸体、一活塞及一连杆，活塞可移动地位于缸体内，连杆连接活塞；刹车致动组件包含一摇摆臂及一刹车拉杆；摇摆臂具有相连的一枢接部、一第一端部及一第二端部，枢接部位于第一端部及第二端部之间；枢接部枢设于缸体，且摇摆臂的第一端部枢设连杆；刹车拉杆枢设于缸体，且摇摆臂的第二端部枢设于刹车拉杆；当刹车拉杆被致动时，刹车拉杆通过摇摆臂及连杆带动活塞移动，而于缸体内产生油压。