Mechanical locking device of hydraulic multi-way valve

• Main Authors: ZHANG CHENG, YANG HUI, NAN XIONG, YUAN HUICHUN, TIAN SHENGLI, LI ZHAOCAI, GUO JUNQUAN, YANG JIANCHANG
• Format: Patent
• Language: Chinese; English
• Published: 08.02.2022
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model discloses a mechanical locking device of a hydraulic multi-way valve. The mechanical locking device comprises a limiting plate, a locking plate, a stop pin and a locking bolt, a plurality of first strip-shaped holes are formed in the limiting plate and matched with an operation valve rod of the hydraulic multi-way valve, second strip-shaped holes matched with the first strip-shaped holes are formed in the locking plate, a clamping groove is formed in one side of each second strip-shaped hole, the locking plate is in sliding connection with the limiting plate, the stop pin is fixedly connected to one end of the locking plate, and the locking bolt is in threaded connection with the limiting plate. And the locking bolt is in close contact with the stop pin during locking. When the heading machine works normally, the operating valve handle corresponds to the first strip-shaped hole and the second strip-shaped hole, the operating valve handle can normally move up and down, when the heading operat