Multi-layer nickel-cobalt composite electroplating anti-corrosion wear-resistant internal and external plating sleeve

The utility model discloses a multilayer nickel-cobalt composite electroplating anti-corrosion wear-resistant internal and external plating casing pipe which comprises a casing pipe body, a first connecting sleeve and a second connecting sleeve, a fast cutting groove is formed in the surface of the casing pipe body, a sealing strip is inserted into the fast cutting groove, a first mounting grooveis formed in the surface of the casing pipe body, and a second mounting groove is formed in the surface of the casing pipe body. An inner clamping block is inserted into the first mounting groove, a first connecting sleeve is connected to one side of the inner clamping block, a first connecting block is connected to the front face of the first connecting sleeve, a square rod is inserted into the first connecting block, a threaded rod is inserted into the square rod, a first connecting rod is connected to one side of the threaded rod, and a second connecting rod is connected to the other side of the threaded rod. And o