Contractible socket

The invention provides a contractible socket. A professional elastic element and a professional elastic mechanism are arranged on one side of the socket conductive contact body, so that the socket conductive contact body and the conductive contact body of the plug are elastically pressed continuously, and the purpose of long-lasting good contact is achieved. In order to further ensure that the socket and the plug are in good durable contact, the elastic element is a spring made of a professional spring steel wire; in order to further improve the scientific and reasonable elastic pressing socket conductive contact body of the spring, a positive electrode movable contact column, a positive electrode insulating cap, a positive electrode wire reaching sheet, a negative electrode insulating cap, a negative electrode wire reaching sheet and a negative electrode movable contact column are arranged in a matching manner; and the parts are combined and arranged in two insulators, and finally a shell is sleeved, so that