Top seed screen door beam electric air

Species headpiece screen door damper motor, comprising a valve outer frame, and the blade execution means, said valve outer frame is "□" structure, with a first side and a second flange connected to the connecting flange, the other side is provided with a first three and fourth connecting flanges connecting flange, said actuator being connected with the drive shaft, a valve intermediate the outer frame is provided with a first partition and a second partition block block the blade through the shaft is provided on the outer valve frame block and the second partition, the partition between the second block is provided at both ends with a soft gasket, said actuator being disposed between the first partition and a second partition block block is provided with external insulation means, said shaft provided with a linkage mechanism, the linkage mechanism disposed between the first partition and a second partition block block, said valve shaft and an outer frame is provided with a sliding bearing connection, sealing, and can adjust the amount of air leakage, safety high reliability.