Composite coating steel pipe

The utility model relates to the technical field of steel pipes, in particular to a composite coating steel pipe which comprises a pair of steel pipes with the same structure, and a clamping structureis installed between the pair of steel pipes. The device is reasonable in structure, cost is low and usage is convenient, when the steel pipes need to be connected; a clamping block in the clamping structure can be clamped in the connecting seat by rotating the handle; the steel pipes are connected and fixed through the clamping structures, the steel pipes can be fixed through the bolts by screwing the bolts in the clamping structures, the steel pipes can be connected and detached conveniently through the clamping structures, and meanwhile the stability of connection between the steel pipes is improved. 本实用新型涉及钢管技术领域，具体涉及一种复合涂层钢管，包括一对结构相同的钢管，一对所述钢管之间安装有卡接结构；本装置结构合理，成本低，使用方便，当需要对钢管进行连接时，通过转动把手可以使得卡接结构内的卡块卡接在连接座的内部，使得钢管之间进行连接固定，并且，还可以通过拧动卡接结构内的螺栓使得螺栓将钢管之间进行固定，卡接结构可以使得钢管之间的连接以及拆卸都较为方便，同时也提高了钢管之间连接的稳定性。