Multiple folding doors capable of automatically locking and opening controlled by a multi-link mechanism

Abstract

The invention discloses multiple folding doors capable of automatically locking and opening controlled by a multi-link mechanism. A narrow guide rail and a wide guide rail are fixed on the top of a door frame, the top ends of the multiple folding doors are connected with the narrow guide rail and the wide guide through multiple connection rods, the narrow guide rail is provided with a Z type sliding block, a second sliding block and a first fixing block, and the second sliding block is connected with the first fixing block through a first spring; a sliding plate capable of pushing the Z type sliding block to move is arranged on the wide guide rail, a second fixing block is connected with a third fixing block through a pulling shaft, the second fixing block and the third fixing block are arranged on the sliding plate, and a first sliding block and a second spring are arranged on the pulling shaft in a sleeved mode; the multiple folding doors are sequentially hinged through hinges, a first folding door is hinged to the door frame, the multiple connection rods are sequentially hinged, each connection rod is hinged to the middle portion of the top end of the corresponding folding door, a tail folding door is hinged to a connection rod on the outer lateral side of the top end, and the connection rod is hinged to the first sliding block; the move of sliding plate is controlled by a power mechanism. According to the multiple folding doors, automatically controlling the closeness and locking of the folding doors can be realized, and the operation is more convenient and safer.

Description

technical field [0001] The invention relates to a linkage multi-leaf folding door, in particular to a multi-leaf folding door which is controlled by a multi-link mechanism and can realize automatic locking and opening and closing. Background technique [0002] At present, garage folding doors, household folding doors and warehouse folding doors are mainly rolling shutter folding doors. Rolling shutter folding doors mainly have relatively high requirements for motors, short life of accessories, high noise, and the size is limited by the size of the curtain. Limitations, good anti-theft performance and high cost, etc. The folding doors that are often used in the folding doors of units and residential areas also have disadvantages such as low security and visible internal conditions, and the existing folding doors need to be closed after they are closed. Lock, the automatic control program is not high, and the operation is troublesome. Contents of the invention [0003] The ...

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Problems solved by technology

[0002] At present, garage folding doors, household folding doors and warehouse folding doors are mainly rolling shutter folding doors. Rolling shutter folding doors mainly have relatively high requirements for motors, short life of accessories, high noise, and the size is limited by the size of the curtain. Limitations, good anti-theft performance and high cost, etc. The folding doors that are often used in the folding doors of units and residential areas also have disadvantages such as low security and visible internal conditions, and the existing folding doors need to be closed after closing. Lock, the automatic control program is not high, and the operation is troublesome

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