Hydraulic support bottom lifting jack piston rod

The utility model relates to a hydraulic support bottom lifting jack piston rod which comprises a piston end, a rod body and a rod head end, an annular groove is formed in the left end of the rod headend, and two liquid inlets are formed in the right end of the rod head end. And a lug seat is fixedly arranged at the liquid inlet. According to the utility model, the small pin shaft is inserted into the annular groove, so that the assembly space is saved; besides, the rubber tube is reinforced by inserting the lug into the liquid inlet, so that the rubber tube is not easy to fall off, liquid leakage can be prevented, and the lug is small in size, simple in structure, convenient to process and mount, economical, durable and wider in application prospect. 本实用新型涉及一种液压支架抬底千斤顶活塞杆，包括活塞端、杆体以及杆头端，所述杆头端左端设有环形槽，杆头端右端设有两个进液口；所述进液口处固定设置有耳座。本实用新型采用了环形槽插入小销轴的方式，节约了装配空间；另外，用将胶管通过耳座插入进液口的方式加固胶管，不易脱落，还能防止漏液，而且由于耳座尺寸小，结构简单，加工和安装都很方便，经济耐用，应用前景更广。