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[CN 201721518988.6] counterstrike forging hammer cylinder


[CN 201721518988.6] Title of counterstrike forging hammer cylinder: counterstrike forging hammer cylinder application number: CN 201721518988.6 Applicant: Yangzhou Jiangdu Yongjian Co., Ltd. Application Date: 2017-11-15 Patent Type: Utility model counterstrike forging hammer cylinder, involving the structural field of cylinder, including cylinder barrel, piston rod, front end cover and rear end cover. The front end cover and rear end cover are respectively connected to the front and rear ends of the cylinder barrel. The piston rod is arranged in the cylinder barrel, the front end of the piston rod passes through the front end cover, and the piston and the piston rod divide the cylinder into a rod cavity and a rod-less cavity; an exhaust hole is provided on the front end cover, and one end of the exhaust hole communicates with the rod cavity. The front end cover at the other end of the exhaust hole is connected with a one-way exhaust valve that discharges gas from the rod cavity. The cylinder has a rod cavity linked to a one-way exhaust valve, which realizes a one-way seal inside. Through this seal, the internal gas can be discharged outward, but the external air cannot enter, so that the rod cavity can be realized as a theoretical vacuum during the retraction of the piston rod. It not only avoids the problem of resistance caused by poor exhaust of the rod cavity when the piston rod is quickly extended, but also forms a vacuum to accelerate the movement of the piston rod.

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