Casement door and window for fire protection
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...
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Main Authors | , , , |
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Format | Patent |
Language | Chinese English |
Published |
13.09.2019
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Subjects | |
Online Access | Get full text |
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Summary: | 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 |
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Bibliography: | Application Number: CN201910656185 |