DOUBLE SLIDING-PLUG DOOR SYSTEM

• Main Authors: GE, Hanqing, SHI, Xiang, DAI, Zuxin, ZU, Wenkai, SHI, Xudong
• Format: Patent
• Language: English; French; German
• Published: 15.09.2021
• Subjects: CHECKS FOR WINGS; DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; KEYS; LADDERS; LOCKS; SAFES; WINDOW OR DOOR FITTINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING

The prevent invention discloses a double sliding-plug door system, which comprises a fixed frame, a sliding-plug rail arranged in the fixed frame, a cross beam, a driving mechanism, and a linkage mechanism matched with the driving mechanism; and further comprises a guide locking piece arranged in the cross beam and a limiting mechanism. The driving mechanism comprises a screw rod and a nut assembly driven by a motor; the nut assembly comprises a transmission frame, a nut sleeved in the screw rod and a follow-up member fixed in the nut; the nut is mounted in the transmission frame, and the transmission frame is connected with an active sleeve assembly; the screw rod drives the nut assembly to reciprocate axially along the screw rod; during the forward rotation of the screw rod, when the follow-up member is contacted with the guide locking piece, the follow-up member moves to the limiting mechanism under the guiding of an upper surface of the guide locking piece and is blocked by the limiting mechanism, then the follow-up member rotates with the screw rod to enter a space between a side plane of the guide locking piece and the limiting mechanism and is locked; and when the screw rod rotates reversely, the follow-up member reversely rotates with the screw rod to disengage from the limitation of the guide locking piece and is unlocked, and then moves axially along the screw rod.