Sliding-plug door

Abstract

The invention relates to the field of sliding-plug door locks, and discloses a sliding-plug door. When a door panel is closed, a drive motor drives a lead screw to rotate forwards, a lead screw nut moves along the lead screw in a straight-line mode to drive a sleeve to move along the door panel located at the bottom parts of a sliding rod and a door carrying frame in a straight-line mode, when thesleeve moves to be in contact with a door lock clutch device, the door lock clutch device is driven to clamp to and lock with a to-be-locked stopper which is coaxially fixed to the lead screw, and closing and locking of the door panel are realized; when the door panel is opened, the drive motor drives the door lock clutch device to separate from the to-be-locked stopper, and the to-be-locked stopper after separation rotates backwards under continuous driving of the drive motor to drive the lead screw to rotate backwards, the lead screw nut moves along the lead screw in a straight-line mode and in a reversed direction, and so that the sleeve drives the door carrying frame to move in a reversed direction, and whenthe sleeve moves in the reversed direction to separate from a door lock clutchmechanism, the lock clutch mechanism returns to an original state. Locking and unlocking of a door lock and opening and closing of the door panel in the sliding-plug door share the common driving motor, so as to avoid automatic opening of a vehicledoor in bumpy operation, and the vehicle door has good airtightness.

Description

technical field [0001] The invention relates to the field of sliding door locks, in particular to a sliding door. Background technique [0002] At present, bus doors, subway doors or high-speed rail doors usually use sliding doors. The sliding door has good sealing performance and takes up less space, making the overall model beautiful and generous. The quality of the sliding door lock directly affects the quality of the sliding door. Security and sealing, in order to improve the security of sliding door, the researcher in the field mainly puts the object of research on the structure of sliding door lock. [0003] The currently used plug-in door lock structure is usually when the door is closed, a guide wheel on the door lock is introduced into the guide rail through a guide rail on the vehicle frame, and the movement of the door lock is restricted by this guide rail, and the door lock is fixed on the On the door, so that the movement of the door is restricted, so as to ach...

AI Technical Summary

Problems solved by technology

However, this kind of door lock structure has great safety hazards, because when the vehicle is running, the road surface is bumpy and hollow, and the guide wheel on the door lock will roll back and forth in the guide rail, which will lead to poor sealing of the door. When running at high speed, the airflow will enter the car from the gap in the door, which will affect the ride experience of the passengers; when the vibration is large, the guide wheels will even slide out from the original path in the guide rail, which will cause the door to be opened automatically. big security risk

[0004] There are also some Sierra door locks that can avoid the problem of automatic opening of the car door during vibration and bumps, but usually the opening and closing of the car door and the locking and unlocking of the door lock require a driving mechanism respectively, that is, the entire set of car doors requires at least two sets of drive motors. One set is used to drive the locking and unlocking of the door lock, and the other set is used to drive the opening and closing of the car door, which undoubtedly increases the cost and the structure of the car door is complicated

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