Elevator ventilation pipe convenient to regulated flow

The utility model provides an elevator ventilation pipe convenient to regulated flow, it relates to the ventilation pipe field. It contains to ventilate is responsible for, left side connecting pipe,flow regulator, right side connecting pipe, locking mechanism, the couple, coil spring, the sticky tape, the clamp, the go -between, connect the external screw thread, be provided with the connectionexternal screw thread on the go -between, the solenoid valve sets up the top at flow regulator, manual valve setting is in the flow regulator below, the inside spiral baffle that is provided with of flow regulator, the flow regulator inner wall is provided with the connection internal thread, be provided with infrared inductor on the solenoid valve, flow regulator sets up at left connecting pipe left end, right side connecting pipe right -hand member is provided with locking mechanism, the winding has coil spring outside the person in charge of ventilating, be provided with the sticky tape along coil spring. The utilit