Switch valve and dispensing equipment

• Main Authors: ZHANG LONGBO, WANG SI, WU WENYUAN, YANG JIANDONG, LYU GUANGJIAN
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2024
• Subjects: ACTUATING-FLOATS; APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; LUBRICATING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SPRAYING OR ATOMISING IN GENERAL; TAPS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VALVES; WEAPONS

The switch valve comprises an air cylinder, a valve assembly and a sealing assembly, a piston in the air cylinder and a push rod are pushed to move through high-pressure gas, a valve element is connected with the push rod, the push rod can drive the valve element to move up and down so as to change the matching relation between the valve element and a first sealing piece, and the effect of opening and closing the valve assembly is achieved. Due to the arrangement of the containing cavity and the oil port, lubricating oil can enter a gap between the containing cavity and the push rod through the oil port, and a certain lubricating effect is achieved. And meanwhile, the existence of the oil can also play a certain role in isolating and sealing. Under the action of the second sealing piece, lubricating oil cannot leak out, the sealing performance of the switch valve is improved, lubrication of the push rod can be guaranteed, and abrasion is reduced. 本申请公开一种开关阀及点胶设备，开关阀包括气缸、阀门组件和密封组件，通过高压气体推动缸体内的活塞以及推杆运动，阀芯与推杆连接，