Multi-leaf door with automatic lock opening and closing function and automatic door opening and closing function and with starting mechanism
A technology for automatic opening and closing of doors, applied in the field of multi-leaf doors, which can solve problems such as low safety factor, high motor requirements, and short service life of accessories, and achieve the effect of simple control and operation, good anti-theft performance, and aesthetics
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[0016] The present invention will be further described below in conjunction with the accompanying drawings.
[0017] Such as figure 1 As shown, the first door 23 is hinged on one side of the door frame 21 through hinges, the first door 23, the second door 27, the third door 28 and the fourth door 30 are hinged through hinges, and the door frame 21 is fixed on the wall , door frame 21 has keyhole up and down. A chain 22 is installed on the door frame 21, and the chain 22 is driven by a dynamic source to make a reciprocating motion. A spring type pre-opening mechanism is installed on the door frame 22, and a first locking mechanism 26 is respectively installed inside the second door 27 and the fourth door 30. and the second locking mechanism 31, the locking mechanism can be designed as one or more as required, and the first unlocking lever 25 and the first unlocking lever 25 and the first locking mechanism 26 and the second locking mechanism 31 that are respectively controlled ...
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