One -way speed governor with speed control is and pawl can automatic re -setting

The utility model discloses an one -way speed governor with speed control is and pawl can automatic re -setting, its ratchet keep away from the coaxial fixed dish that is provided with on the wheel face of gravity drop hammer, in the quotation of dish circumference lay incline direction and the ratchet teeth of a cogwheel the incline direction unanimity bulldoze the tooth, be fixed with resetting means on the pawl, resetting means has behind pawl locking ratchet, ratchet when reversal with bulldoze the tooth and slide and bulldoze the inclined plane that resets that the cooperation makeed the pawl reset, has laid from the reset switch outer edge part position of dish, each is on the reset switch is in the circumference of a concentric circles of dish, the lever of reset switch stretches to the inboard separately, the free end of each lever is in respectively on the circumference of a set of concentric circles of dish, the gravity drop hammer touches each from the reset switch opening the in -process in proper