Domestic connector

The utility model relates to a connecting piece technical field discloses a domestic connector, and this domestic connector is the tubular structure to the surface of the first half of this domestic connector is carved with and rolls the bastard cut, and the first half of this domestic connector can form fixed an organic whole through mechanical shock through this one end inside wall that rolls bastard cut and last connecting pipe, and the upper surface of the latter half of domestic connector is carved with the car tooth, and car tooth that the latter half of this domestic connector was carved with can be connected with the rotatory interlock of car tooth that the one end inside wall of connecting pipe down be carved with to make the latter half of this domestic connector and fixed an organic whole of one end inside wall formation of this time connecting pipe. Implement this domestic connector, can realize freely assembling and dismantling of upper and lower connecting pipe, make things convenient for the co