Energy-saving brake lever assembly for vehicles

An energy-saving brake lever assembly for a brake device, comprising:

• a casing (1) having a socket section (11) and a pivot section (12) respectively formed to two ends thereof, the socket section (11) adapted to be connected to a vehicle (100) and positioned near a handlebar (200) of the vehicle (100);
• a brake lever assembly (2) partially and pivotally connected to the pivot section (12), a first end of a control device (300) passing through the pivot section (12) of the casing (1) and connected to the brake lever assembly (2), a second end of the control device (300) connected to a brake caliper assembly (400);
• a pin (3) inserted through the pivot section (12) and the brake lever assembly (2) so that the brake lever assembly (2) is pivotable relative to the casing (1), and
• a torsion spring (4) located in the pivot section (12) and mounted on the pin (3), a first end of the torsion spring (4) pressing against the pivot section (12), a second end of the torsion spring (4) pressing against the brake lever assembly (2), a torsional force of the spring (4) being less than a clamping force of the brake caliper assembly (400), wherein by utilizing the torsional force generated by the torsion spring (4) on the brake lever assembly (2), a pulling force less than a force of the brake caliper assembly (400) on the control device (300) is applied to the brake lever assembly (2), the brake lever assembly (2) pivots relative to the casing (1) to brake.