Piston rod anti-rotation and anti-oil-leakage structure of injection molding oil cylinder of injection molding machine

The piston rod anti-rotation and anti-oil-leakage structure comprises a cylinder barrel, a piston and the piston rod, the left side of the inner wall of the cylinder barrel is fixedly connected with a fixing block, the left side of the inner wall of the cylinder barrel is fixedly connected with a limiting rod which penetrates through the fixing block and extends to the right side of the fixing block, and the piston rod penetrates through the cylinder barrel and extends into the cylinder barrel. A through groove is formed in the end, located in the cylinder barrel, of the piston rod, the limiting rod is slidably connected with the piston rod through the through groove, an oil guide groove is formed in the bottom of the inner wall of the through groove, a left sealing mechanism and a right sealing mechanism are symmetrically arranged on the surface of the piston, and the piston is fixedly connected with the surface of the piston rod. According to the piston rod anti-rotation and anti-oil-leakage structure of th