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[CN 201721606906.3] piston assembly, piston hydraulic mechanism
[CN 201721606906.3] Title of Piston Assembly and Piston Hydraulic Mechanism: Piston Assembly and Piston Hydraulic Mechanism Application Number: CN 201721606906.3 Applicant: Liudong Branch of Liuzhou SAIC Automobile Transmission Co., Ltd. Application Date: 2017-11-27 Patent Type: Utility Model The utility model relates to a piston assembly and hydraulic mechanism. The piston assembly includes a piston rubber lip and a stepped piston steel plate, wherein, the stepped piston steel plate includes a first piston steel plate assembly and a second piston steel plate assembly connected to the first piston steel plate assembly. The first piston steel plate assembly includes a first connecting plate and a second connecting plate connected to the first connecting plate. The second piston steel plate assembly includes a third connecting plate and a fourth connecting plate connected to the third connecting plate. The first connecting plate, the second connecting plate and the third connecting plate surround to form a groove, A piston steel sleeve is arranged on a side of the third connecting plate close to the first connecting plate, the piston rubber lip is installed on the piston steel sleeve, and the length of the third connecting plate is greater than the length of the piston steel sleeve. The utility model increases the effective stroke of the piston assembly without increasing the axial space of the machine, which is convenient for popularization and use.
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