Automatic opening and closing device for vertical hinged door
A technology for automatic opening and closing and swinging doors, applied in door/window accessories, power control mechanisms, buildings, etc., can solve problems such as small application range, inconvenient use, unreasonable structure of opening and closing devices, etc., and achieve long service life , Reliable and stable operation
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[0014] The present invention will be further explained below in conjunction with the drawings:
[0015] As shown in the figure, the present invention discloses an automatic opening and closing device suitable for various flat doors (including heavier doors: fire doors, vault doors, etc.). The control box 1 of the device is fixed above the door 5 On the door frame 2; the front end of the swing arm 104 extending from the control box 1 is fixed with a vertical shaft 103, and the lower end of the vertical shaft is hinged with a nylon slider 105, which moves in a metal chute 3, which is fixed to the door 5. At the upper end, the rear of the swing arm 104 and the output shaft 101 of the reducer 10 are fixed together by a pin 102. The reducer 10 is a two-stage gear-driven reduction. The input shaft passes through a sprocket (not shown in the figure) and a chain 9 Connected to the output shaft of the variable frequency motor 8 (not shown in the figure), the input shaft of the reducer 10 c...
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