Pressure self-sealing leakage-stopping gate valve structure

• Main Authors: ZHANG SHAOWEN, LIANG CHANGYOU, WEI HENGBIAO, MA JUNWEI, WEI ZIQIANG, NIU CHENYU, NIU YONGCHUN, YANG JING
• Format: Patent
• Language: Chinese; English
• Published: 25.10.2019
• 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 invention discloses a pressure self-sealing leakage-stopping gate valve structure. The pressure self-sealing leakage-stopping gate valve structure comprises a valve body, wherein a valve cavity isformed in the middle of the valve body, a rear valve base and a front valve base are sequentially arranged at the two ends of the valve cavity from inside to outside, and a sliding sleeve is arrangedbetween the rear valve base and the front valve base; an upper flange plate and a lower flange plate are fixedly arranged at the upper end and the lower end of the valve body correspondingly, an upper protective sleeve is fixedly arranged above the upper flange plate, a lower protective sleeve is fixedly arranged below the lower flange plate, and a gate plate is arranged in the valve cavity through the valve body. According to the pressure self-sealing leakage-stopping gate valve structure, an inlet and an outlet of the valve body are both of a double valve base structure, the sliding sleeveis arranged between the fro