Cylinder type high-pressure cylinder positioning structure

The utility model relates to a barrel type high-pressure cylinder positioning structure, which is arranged between a bearing seat convex shoulder and a high-pressure cylinder vertical pin limit, and comprises a fixing bolt and a limit component, the fixing bolt comprises a first fixing part and a second fixing part which are integrally formed, and one end of the first fixing part and one end of the second fixing part form an included angle. The bottom face of the end, away from the second fixing part, of the first fixing part is attached to the top face of the bearing seat protruding shoulder, one side face of the second fixing part is attached to the high-pressure cylinder vertical pin in a limiting mode, and the limiting assembly is arranged between the second fixing part and the bearing seat protruding shoulder. And the total width of the limiting assembly and the second fixing part is matched with the opening distance between the bearing seat convex shoulder and the high-pressure cylinder vertical pin lim