Enterocoelia retractor with extensible length of retractor body

The utility model discloses an enterocoelia retractor with the extensible length of a retractor body. The enterocoelia retractor comprises a pull rod, a pull rod head is arranged at one end of the pull rod, a grab handle is arranged in the middle of the pull rod, a retractor piece is arranged at the other end of the pull rod, a long through hole is formed in the retractor piece in the longitudinal direction of the retractor piece, a sliding block is assembled in the long through hole, the section of the sliding block is in a T shape, a rear sliding piece fixed with the tail portion of the T shape of the sliding block is arranged on the rear portion of the retractor, the head portion of the T shape of the sliding block is arranged on the front portion of the retractor, and the sliding block is in transitional fit with the two side faces of the long through hole. Due to the fact that the retractor body of the enterocoelia retractor with the extensible length of the retractor body is of a simple rear sliding pie