Roll rope self-locking structure on pet tractor

The utility model belongs to the technical field of pet supplies, and relates to a pet tractor, in particular to a winding rope self-locking structure on the pet tractor. Comprising a main body, a fixing part is arranged on the side edge of the main body, a pull rope cavity is formed in the main body, a roller disc is arranged in the cavity, a pull rope and a coil spring used for resetting the pull rope are arranged on the roller disc, the pull rope and the coil spring are directly or indirectly connected, and a mounting groove is formed in the roller disc. A rope winding self-locking assembly is arranged in the mounting groove, and a self-locking assembly and a reset piece are arranged on the rope winding self-locking assembly. When the roller disc rotates rapidly, the centrifugal force of the roller disc is increased, the ratchets are thrown out by the centrifugal force of the roller disc, the ratchet limiting parts clamp the ratchet limiting grooves, the roller disc stops rotating, and when the pet is stim