Up-down overhead door structure

• Main Authors: MA YUANYANG, YU ZHENGFA, LIU JUN, FAN QIANKUN, ZHANG QINGZHUO
• Format: Patent
• Language: Chinese; English
• Published: 26.04.2024
• Subjects: BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER; CHECKS FOR WINGS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; ELECTRICITY; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; GENERATION; KEYS; LADDERS; LOCKS; SAFES; WINDOW OR DOOR FITTINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING

The utility model discloses an upward and downward turning door structure, which comprises a turning door assembly and a speed reducing mechanism, the turning door assembly comprises an upward turning door and a downward turning door arranged under the upward turning door, and the top end of the upward turning door and the bottom end of the downward turning door are respectively hinged on a fixed body. The top end of the downward turning door abuts against the inner side of the bottom end of the upward turning door. The speed reducing mechanism is arranged on the inner side of the flip-down door and comprises a sliding rail, a lifting plate, a connecting rod and a first elastic piece, and the sliding rail is vertically arranged and fixed to a fixing body. The downward-turning door has the advantages that the acting force direction of the first elastic piece is changed through the matching effect of the sliding rail and the lifting plate, so that the acting force of the first elastic piece faces the inner side