Quick pipe connecting device for concrete conveying pipe

The utility model discloses a rapid pipe connecting device for a concrete conveying pipe, which comprises a fixed bracket, and a movable bracket is movably arranged in the fixed bracket; a plurality of semi-annular supports used for supporting concrete conveying pipes are arranged in the movable support and the fixed support, a plurality of reciprocating driving mechanisms are arranged on the movable support and the fixed support, the driving ends of the reciprocating driving mechanisms are hinged to semi-annular pipe clamps, and the semi-annular pipe clamps are hinged to the movable support or the fixed support. According to the rapid pipe connecting device for the concrete conveying pipe, the hydration heat crack resistance and the concrete strength of a gob-side entry retaining flexible formwork concrete wall can be improved, and the problems that when the concrete conveying pipe is connected, connector alignment is difficult, operation is not easy, pipe connecting work is time-consuming and labor-consumin