Parking brake

• Main Authors: LIU YI, ZHAO LIANG, DING BIN, ZHENG ZEQI, FENG YONGMING, ZHANG CHENGUANG, MA XINYU
• Format: Patent
• Language: Chinese; English
• Published: 02.02.2024
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a parking brake. A cavity is formed in a brake shell; a piston is arranged at one end of the friction plate group; one end of the spring is connected with one end, back to the friction plate group, of the piston; the cavity of the brake shell is communicated with the outside, and a step groove is formed in the cavity of the brake shell; one end of the piston extends into the cavity of the brake shell, a cam is arranged in the step groove of the brake shell and comprises a protruding block and a straight rod which are connected with each other, the other end of the straight rod extends out of the cavity of the brake shell, and the protruding block is matched with the step groove. When the parking brake cannot be filled with oil due to engine faults or other faults, parking can be manually released through manual operation, and convenience is provided for follow-up trailer rescue. After rescue is finished and faults are removed, the cam can be rotated and pulled out through manual operat