Easily-detachable hydraulic oil cylinder structure with anti-leakage function

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a detachable hydraulic oil cylinder structure with an anti-leakage function, which comprises a pull ring component and a piston rod, the lower end of the pull ring component is fixedly connected with the piston rod through threads, and the upper portion of the outer side of the piston rod is fixedly connected with a piston rod lining. The upper portion of the outer side of the piston rod lining is slidably connected with a guide sleeve assembly, the outer side of the guide sleeve assembly is fixedly connected with a sealing assembly and a cylinder barrel through bolts, and the lower end of the cylinder barrel is fixedly connected with a cylinder bottom assembly. According to the pull ring assembly and the sealing assembly, during installation, the pull ring screw rod is inserted into the connecting ferrule, the pull ring screw rod is fixedly connected with the piston rod through the threads, then the connecting ferru