The invention relates to a hydraulic device, and particularly discloses a hydraulic cylinder and a lifting device. The hydraulic cylinder comprises a guide sleeve (21) with a guide sleeve step structure (211) on the outer wall, a guide sleeve pressing piece (22), a cylinder barrel with a guide sleeve pressing piece connecting part (11) on the inner wall of a cylinder head, a piston (41) with a piston step structure (411) on the inner wall, a piston rod (31) with a piston pressing piece connecting part (311) at one end and a piston pressing piece (32), wherein the piston (41) sleeves the piston rod (31), the piston pressing piece (32) is connected with the piston pressing piece connecting part (311), the piston step structure (411) can abut against the piston rod (31), the guide sleeve (21) is sleeved within the cylinder barrel (1), the guide sleeve pressing piece (22) is connected with the guide sleeve pressing piece connecting part (11), and the guide sleeve step structure (211) can abut against the cylinder head of the cylinder barrel (1). The hydraulic cylinder is good in sealing performance, and cavity crossing is not prone to occur.
本发明涉及液压装置,具体公开了一种液压缸以及起重装置,其中,液压缸包括外壁上设有导向套台阶结构(211)的导向套(21)、导向套压装件(22)、缸头内壁处设有导向套压装件连接部(11)的缸筒、内壁上设有活塞台阶结构(411)的活塞(41)、一端端部设有活塞压装件连接部(311)的活塞杆(31)和活塞压装件(32),活塞(41)套装于活塞杆(31)上,活塞压装件(32)与活塞压装件连接部(311)连接,并能够将活塞台阶结构(411)抵接在活塞杆(31)上;导向套(21)套装于缸筒(1)内,导向套压装件(22)与导向套压装件连接部(11)相连接,并能够将导向套台阶结构(211)抵接在缸筒(1)的缸头处。本发明的液压缸密封性好且不易串腔。
Hydraulic cylinder and lifting device
一种液压缸及起重装置
2021-09-17
Patent
Elektronische Ressource
Chinesisch
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