A connecting structure of a piston head and a piston rod in a pneumatic hydraulic pump body

Abstract

The utility model discloses a kind of connection structure of piston head and piston rod in pneumatic hydraulic pump body, and the piston head is equipped with perforation, and the piston rod is equipped with connecting section, connecting section is arranged in the perforation, and the outer peripheral wall of connecting section is equipped with at least two sealing rings, each sealing ring is arranged along the center line direction of connecting section, and each sealing ring is in sealing contact with the inner peripheral wall of perforation.The connection structure of piston head and piston rod of the utility model improves the reliability of sealing between piston head and piston rod, avoids the sealing failure between piston head and piston rod, and influences the use of pneumatic hydraulic pump body.

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