Hollow version axle subassembly and quick assembly disassembly device thereof

The utility model relates to a hollow version axle subassembly and quick assembly disassembly device thereof, the version roller in hollow version roller is established including the cover to this hollow version axle subassembly, is provided with in one side of hollow version roller to be used for being in the locking of hollow version roller the epaxial butterfly spring subassembly of version roller, butterfly spring subassembly cover is established on the version roller lie in on the version roller butterfly spring subassembly deviates from the draw -in groove has been seted up to the position of hollow version roller one side the locking is gone into to have to be used for by the draw -in groove inside callipers an at least jump ring of butterfly spring subassembly. The utility model discloses a hollow version axle subassembly can have been improved work efficiency by quick assembly disassembly, utilizes jump ring locking butterfly spring, utilizes the elasticity of butterfly spring fixed with hollow versi