Take dust channel's butterfly valve

The utility model discloses a take dust channel's butterfly valve, which comprises the following components: a valve body, the valve rod, butterfly plate and transmission, be provided with the valve pocket that link up the valve body in the valve body, the valve rod sets up in the valve body, transmission sets up and links in the valve body top and with the valve rod, the butterfly plate is with valve rod fixed connection and can follow valve rod axle center realization circumferential direction, be connected with the support between valve rod and the transmission, the valve rod is provided with at least one and the dust channel of valve pocket intercommunication, dust channel is including the influent stream end that is located the support, be located the communicating pipe that the valverod outlying effluented and holds and be used for communicateing the influent stream end and effluent and hold, communicating pipe and influent stream end and effluent the junction of end and be located the axle center direc