Patent ID: 11913479
Assignee: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 3:
4. The impact-resistant balanced hydro-cylinder with pressure relief and buffering protection according to claim 2, wherein an oil drainage hole (34) for the first oil cavity is formed at a position on the cylinder body (11) corresponding to the first valve core (21) and an oil drainage hole (44) for the second valve core is formed at a position on the cylinder body (11) corresponding to the second valve core (51), and when the first valve core (21) and the second valve core (51) abut against the limiting boss (23) for the first gas cavity and the limiting boss (53) for the second gas cavity respectively, the oil drainage hole (34) for the first oil cavity and the oil drainage hole (44) for the second oil cavity communicate with the first oil cavity (32) and the second oil cavity (42) respectively.