Hand-cranking mechanism for airplane cabin door

• Main Authors: SHAO BO, YU TING, ZHOU CHENGFENG, MAO XIAODONG, LIU CHIWEI, DING HAO, HUANG NAN, XIONG QIAN, TU LIANGHUI, WANG SHUANG, JI BIYI, LONG CHANGPENG
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: AEROPLANES; AIRCRAFT; AVIATION; COSMONAUTICS; HELICOPTERS; PERFORMING OPERATIONS; TRANSPORTING

The invention relates to a hand-cranking mechanism for an airplane cabin door, which belongs to the technical field of airplane structures. The hand-cranking mechanism for the airplane cabin door comprises an upper supporting arm, handles, a right gear, tightening pieces, a lower supporting arm, a left gear, an upper cover, a bottom plate, a key, a worm wheel, a lower bearing, an upper bearing, a worm, a left side plate, a left bearing, a sleeve, a right bearing, a right side plate and a shaft; the left bearing, the right bearing, the upper bearing and the lower bearing are respectively connected with the left side plate, the right side plate, the upper cover and the bottom plate through interference fit; the left side plate, the right side plate, the upper cover, the upper supporting arm and the lower supporting arm are connected with the bottom plate through the tightening pieces; the worm wheel is limited by the sleeve and connected with the shaft through the key; the shaft is in transitional fit with the