Double-open sliding plug door system

Abstract

The invention discloses a double-open sliding plug door system. The system comprises a fixed frame, a sliding plug rail, a cross beam, a driving mechanism and a linkage mechanism, wherein the sliding plug rail, the cross beam and the driving mechanism are arranged on the fixed frame, and the linkage mechanism is matched with the driving mechanism; the system further comprises a guide locking block and a limiting mechanism arranged which are arranged on the cross beam, and the driving mechanism comprises a lead screw and a nut assembly, wherein the lead screw and the nut assembly are driven by a motor; the nut assembly comprises a transmission frame, a nut arranged on the lead screw in a sleeving manner and a follow-up component fixed to the nut; the nut is mounted in the transmission frame, and the transmission frame is connected with a driving sleeve component; the lead screw drives the nut assembly to reciprocate in the axial direction of the lead screw, and in the forward rotation process of the lead screw, when the follow-up component makes contact with the guide locking block, the follow-up component moves to the limiting mechanism and is blocked by the limiting mechanism under guidance of the upper surface of the guide locking block, and the follow-up component rotates along with the lead screw to enter the space between the side face of the guide locking block and the limiting mechanism to be locked; and when the lead screw reversely rotates, the follow-up component reversely rotates along with the lead screw to be separated from limitation of the guide locking block to be unlocked, and then moves in the axial direction of the lead screw.

Description

technical field [0001] The invention relates to the field of doors, in particular to a double-opening plug-and-pull door system. Background technique [0002] The screw drive used in the existing double plug sliding door system is generally a motor-driven screw rod, which drives the nut assembly arranged on the screw rod to reciprocate, and then drives the door leaf connected with the nut assembly. Generally speaking, the double-opening sliding door system is mostly used in the field of rail transit, bus and other public transportation vehicle doors, and it also has the function of locking and unlocking. Usually used in the double-opening plug-and-pull door system in the above fields, the nut assembly is locked by an electromagnetic lock, thereby realizing the function of locking the door. In this form of double-opening plug-and-pull door system, the electromagnetic lock must be energized at any time to ensure the stability of the locked door. If the electromagnetic lock is...

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The present invention provides a double-opening plug-and-pull door system to solve the problem of the power-off rear door in the door system using electromagnetic locks in the prior art. The problem of automatic opening, and the problems of complex structure, heavy weight and difficult control of the door system with mechanical lock

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