Take spacing booster waste gas bypass valve of preventing changeing function

The utility model discloses a take spacing booster waste gas bypass valve of preventing changeing function belongs to mechanical technical field. Its technical scheme does: a take spacing booster waste gas bypass valve of preventing changeing function, its characterized in that includes one end connection valve block, the transmission pole of guide bar one end is connected to the other end, and transmission pole one end is equipped with connected switching piece, and the guide bar other end is deployed in the voltage regulator, is equipped with diaphragm and spring in the guide bar circumference that lies in one section voltage regulator, sets up the stop collar that holds the guide bar between spring and diaphragm, set up on the side of valve block and prevent changeing piece and connecting rod. The beneficial effects of the utility model are that: reduce the fatigue wear of diaphragm and spring, reduce the maximum opening of valve block, prevent that the valve block from meeting booster spiral case transition joint, lead to the valve block to drop, has designed on the valve block and has prevented changeing piece and switching piece, can effectively solve traditional structure and since the valve block brushed continuous rotation by the engine exhaust pulse, pin wearing and tearing fracture problem appears.