Importance

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Abstract

The application discloses a pneumatic valve control device, which comprises an air cylinder provided with a first piston and an air outlet and a hydraulic cylinder provided with a second piston and an air vent; a partition is arranged between the hydraulic cylinder and the air cylinder, and a partition channel is arranged on the partition; the second piston is connected with a piston rod capable of passing through the partition channel; the piston rod is connected with a tappet valve for opening and closing the partition channel, and the tappet valve is capable of withdrawing from the partition channel with an upward movement of the piston rod and jacking up the first piston; and the air cylinder further comprises a locking and releasing mechanism capable of locking and releasing the first piston that is jacked up; and herein, when the locking and releasing mechanism is unlocked and the first piston is in a descending, falling back state, the partition channel is in a closed state, and the air outlet is in an outward exhaust state. The pneumatic valve control device disclosed by the application is more labor-saving and convenient to operate, and improves a performance of products.

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First Claim