Device for catching and collecting crabs on land

The utility model discloses a device for catching and collecting crabs on land, and belongs to the technical field of catching and collecting instrument structures. Comprising a capturing unit, a connecting unit, a conveying unit and a collecting unit which are sequentially connected, the catching unit is arranged close to the ground and comprises a catching part and a braking assembly, an opening and closing door is arranged at a crab inlet of the catching part, and the braking assembly controls opening and closing of the opening and closing door; the connecting unit is movably connected to the crab outlet position of the catching piece, meanwhile, a brake wheel and a rotating shaft are arranged on the connecting unit, and the brake wheel and the rotating shaft are in transmission connection to achieve relative rotation; the conveying unit is provided with a conveying belt, the conveying belt is connected to the rotating shaft and the collecting unit in a sleeving mode, and crabs are conveyed to the collecti