Gate valve with sealing structure

• Main Authors: HU XIAOMING, LYU JINYI, SU DANNI
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• 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 gate valve with the sealing structure comprises a valve body, a valve cover is arranged at the top end of the valve body, a first annular groove is formed in the middle of the top end of the valve body, fixing plates are fixedly arranged at the two ends of the inner wall of one side of the first annular groove, and fixing blocks are fixedly connected to the middles of the top ends of the fixing plates. The outer side of the fixed block is movably connected with a movable block, a second sealing ring is arranged at the top end of the movable block and is in contact connection with the bottom end of the valve rod groove, and the outer side of the second sealing ring is in contact connection with the inner wall of the first annular groove. The second sealing ring can abut against the bottom end of the valve deck through the movable block, the sealing performance between the valve deck and the valve body is better, the third sealing ring can be tightly attached to the gate plate through the pressing plate in