Ball valve cover

• Main Authors: SHAO LISHENG, YI XIANGUO
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2022
• 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 ball valve cover which comprises a bottom cover, a reinforcing structure fixedly connected to the bottom cover, a sleeve installed in the reinforcing structure in a threaded mode, a rotating handle inserted in the sleeve in a rotating mode, the bottom cover is connected to the end of a valve body through threads, the bottom cover and the end of the valve body are fastened through a locking bolt, and meanwhile leakage-proof treatment is conducted through a water blocking piece in the bottom cover. Meanwhile, a reinforcing structure is fixedly arranged on the bottom cover, a pin block is inserted into a pin hole and a pin groove in a reinforcing ring in the reinforcing structure, the reinforcing structure is locked, a sleeve is installed in the middle ring through threads while locking is conducted, and at the moment, an expansion ring is arranged between the inner wall of the reinforcing ring and the outer wall of the sleeve; the gap between the sleeve and the reinforcing ring is