Suction tube for embryo liquid change

The utility model discloses a suction tube for embryo liquid change, and relates to the technical field of liquid change suction tubes. The suction pipe for embryo liquid exchange comprises a liquid extraction sleeve, the inner wall of the liquid extraction sleeve is in piston connection with a compression block, the top of the compression block is fixedly connected with a branch pipe, the bottom end of the liquid extraction sleeve is fixedly connected with a fixed pipe, the bottom end of the liquid extraction sleeve is fixedly connected with a through pipe, a connecting pipe is inserted between the fixed pipe and the through pipe, and the connecting pipe is fixedly connected with the branch pipe. A collecting disc is fixedly connected to the bottom end of the connecting pipe, liquid pumping pipes are fixedly connected to the two sides of the outer wall of the collecting disc, clamping blocks are fixedly connected to the outer wall of the connecting pipe, a sliding groove is formed in the inner wall of the co