Automatic liquid changing device for peritoneal dialysis

The invention relates to the field of peritoneal dialysis, in particular to an automatic liquid changing device for peritoneal dialysis, which comprises a shell, a plurality of uniformly distributed vertical plates are arranged in the shell, a peritoneal dialysis bag is hung above the vertical plates, a collecting box is arranged below the vertical plates, a waste liquid bag is placed in the collecting box, and an interface for peritoneal dialysis is arranged between the peritoneal dialysis bag and the waste liquid bag. The peritoneal dialysis liquid bag is connected with the connector through a liquid inlet pipe, the waste liquid bag is connected with the connector through a drainage pipe, through holes are formed in the positions, corresponding to the connector, of the side face of the shell, a user inserts a short pipe on the body into the through holes, a clamping device is arranged at the position, corresponding to the connector, of the vertical plate, and the clamping device can drive the connector to b