Piston structure

The utility model provides a piston structure, including piston base member, sliding sleeve, sliding sleeve gland, the piston base member is discoid, and the centre of a circle position suit of piston base member is on central guide shaft, and the position that is close to piston base member terminal surface between piston base member and the central guide shaft is provided with the sliding sleeve, and it is fixed spacing that the sliding sleeve passes through sliding sleeve gland fixed on the both ends face of piston base member. The utility model discloses improvement that can be fine is at the vice corrosion resisting property of marine piston motion, may not need interpolation separately can get rid of the pollution of emollient to marine environment as the emollient that the lubrication required through the sealed blade of arc. 本实用新型提供了种活塞结构体，包括活塞基体、滑套、滑套压盖；所述活塞基体为圆盘状，活塞基体的圆心位置套装在中心导轴上，且活塞基体和中心导轴之间靠近活塞基体端面的位置设置有滑套，滑套通过活塞基体的两端面上固定的滑套压盖固定限位。本实用新型能很好的提高在海中活塞运动副的耐腐蚀性能；通过弧形密封叶片可以不需要另行添加作为润滑要求的润滑剂，可以排除润滑剂对海洋环境