Explosion-proof pneumatic air inlet valve

Abstract

The utility model provides a kind of explosive pneumatic air inlet valve, including valve sleeve, the ring of valve sleeve is provided with valve piece, the diameter direction of valve piece is fixedly connected with connecting rod, the outer wall of valve sleeve is fixedly connected with mounting bracket, the top of mounting bracket is fixedly installed with pneumatic actuator, connecting assembly is arranged between the output shaft of pneumatic actuator and connecting rod, the diameter direction both ends inner wall of valve sleeve is outwardly perforated with through hole, and connecting rod rotates and cooperates in through hole. Through the annular cooperation structure of sealing strip and sealing groove, replace traditional plane seal, increase the sealing contact area of valve piece and baffle strip, and sealing strip is arranged around the circumference of connecting rod center axis, ensure that the sealing of valve piece is uniform in closed state, effectively block airflow leakage, the flexible connection design of elastic coupling, the coaxiality deviation between pneumatic actuator output shaft and connecting rod can be compensated, reduce transmission jamming phenomenon, prolong the overall service life of valve.

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