Gate plate rubber coating structure of gate valve with high-pressure sealing function

• Main Authors: HU XINGFENG, FAN LILI
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• 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 relates to the technical field of elastic sealing gate valves, in particular to a gate plate rubber coating structure of a gate valve with a high-pressure sealing function, which enables the extrusion force of a second rubber layer on the inner wall to be larger and larger so as to form a wedge-shaped sealing isolation layer which is tighter and tighter, and achieves the purposes that the gate plate rubber coating structure is not easy to leak under high-pressure sealing pressure. Meanwhile, the contact area of a sealing surface is guaranteed, the control torque is not increased, the high-pressure sealing performance is better, and leakage is not prone to occurring; comprising a valve body, a flashboard framework, a rubber sealing layer, a thickened rubber layer and an inner wall, the inner wall is arranged in the valve body, the valve body and the flashboard framework form a sealing pair of the elastic sealing gate valve, the rubber sealing layer wraps the outer side wall of the flashboard