Drum brake's proportional valve behind preceding butterfly of motorcycle

• Main Authors: HUANG XINJUN, XU YUECHI, LAI WEIFAN, ZHENG DEWEN
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2017
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

The utility model discloses a drum brake's proportional valve behind preceding butterfly of motorcycle is become by valve body, push rod, first rocking arm, second rocking arm, a return spring and push rod, the valve body comprises cylinder body, piston rod, dirt proof boot and the 2nd return spring, the cylinder body forms the piston cylinder, and the piston cylinder front end forms the oil -out, and oil inlet, oil inlet and piston cylinder middle section intercommunication are seted up to the cylinder body side, the piston rod sets up at the piston cylinder back end, a return spring sets up at the piston cylinder anterior segment, first rocking arm one end and the common pin joint of push rod one end are on same pivot, the second rocking arm is connected with the push rod, push rod other end butt is on the dirt proof boot of piston rod rear end, a connecting piece is extended in the epaxial one end of pivot to second rocking arm one side to first rocking arm pin joint, and a return spring one end is connect