Casement door and window for fire protection

• Main Authors: SONG CHENGYONG, LI LANG, ZHANG HANCHANG, CHEN JIXUN
• Format: Patent
• Language: Chinese; English
• Published: 13.09.2019
• Subjects: BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS ORWINDOWS; 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 invention discloses a casement door and window for fire protection. The casement door and windowincludes a limit mechanism, a locking mechanism and a fire protection self-closing device. The limitmechanism comprises a first bottom groove, a locking device, a linkage, a first sliding block and a connection rod arranged on a door and window fan; the first sliding block is connected with the first bottom groove in a sliding mode, and at the same time, a plurality of level position holes are formed in the first sliding block; the two ends of the connection rod are correspondingly pivoted withthe first sliding clock and the fire protection self-closing device; the locking device comprises a locking box fixedly connected with the first bottom groove, a first locking tongueinternally arranged in the locking box, a plug pin fixedly connected with the first locking tongue and matching with the level position holes, and a first reset spring driving the first locking tongue and the plug pinto simultaneously protrude