Clamping and pressing connection structure capable of being rapidly assembled and disassembled

The clamping and pressing connection structure comprises a three-way pipe body and connectors arranged at the two ends of the three-way pipe body, pipe fittings are connected to the connectors in an inserted mode, flaring parts are formed between the connectors and the three-way pipe body, an extrusion plate is arranged on the outer side of the three-way pipe body, a pressing sleeve is arranged on one side of the extrusion plate, and the three-way pipe body is connected with the pressing sleeve. A supporting cylinder used for supporting a pipe fitting is arranged in an inner cavity of the three-way pipe body in a sliding mode. When the pipe fitting is inserted into the connector, the pipe fitting is arranged between the supporting barrel and the connector, and the supporting barrel is driven by the driving assembly to slide into an inner cavity of the pipe fitting so as to support the pipe fitting. When the connector is extruded through the pressing sleeve, the pipe fitting can be extruded through the connect