90-degree chain type opening and closing device

• Main Authors: FANG SHENGLI, WANG RIFANG
• Format: Patent
• Language: Chinese; English
• Published: 27.03.2020
• Subjects: CHECKS FOR WINGS; DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; FIXED CONSTRUCTIONS; KEYS; LOCKS; SAFES; WINDOW OR DOOR FITTINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING

The utility model discloses a 90-degree chain type opening and closing device. Including an outer tube, a chain, a speed reducer, a motor and a circuit board are sequentially arranged in the outer pipe from left to right. The circuit board is connected with the motor through a wire. An output shaft of the motor is connected with an input shaft of the speed reducer through a coupling; end covers are connected to the two ends of the outer pipe in a clamped mode, the side face of the outer pipe is connected with the end covers through screws, an outlet plate is arranged in the middle of the backface of the outer pipe, an outlet communicated with an inner cavity of the outer pipe is formed in the outlet plate, and one end of the chain penetrates through the outlet and extends out of the outerpipe. According to the 90-degree chain type opening and closing device, by improving the chain structure, the whole device can be opened by 90 degrees, and therefore the 90-degree chain type openingand closing device can be r