Sliding plug door assembly

Abstract

The invention relates to the field of sliding plug doors, and discloses a sliding plug door assembly. The sliding plug door assembly is characterized in that two groups of connecting shaft driving mechanisms are separately arranged at two ends of a base fixed at the upper part of a door frame, are fixedly connected through a sliding rod and are rotationally connected through a pull rod, two sliding sleeves are arranged on the sliding rod in a sleeving mode, and two ends of a drawn wire are connected with the two sliding sleeves after being wound around two wire drawing wheels correspondingly;a guide wheel rotationally connected to one sliding sleeve is limited in a guide groove in the base; a power source of a sliding plug door is fixed on the pull rod, and a driving end of the sliding plug door is fixedly connected with the sliding sleeve connected with the guide wheel; and door plates are fixedly connected to the two sliding sleeves through door carrying frames correspondingly, andthe connecting shaft driving mechanisms are driven by a power source to do reciprocating motion relative to the base. According to the sliding plug door assembly, the force originally concentrated onthe guide wheel is dispersed into the guide wheel and the connecting shaft driving mechanisms on the two sides of the guide wheel, so that the sliding plug door is very stable when opened or closed, the phenomenon that the guide wheel is automatically separated from the guide groove is avoided, and damage to the guide wheel is reduced.

Description

technical field

[0001] The invention relates to the field of drive mechanisms, in particular to a sliding door assembly. 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 door lock structure is usually when the door is closed, a guide wheel on the door lock is introduced into the guide groove through a guide groove on the vehicle frame, and the movement of the door lock is restricted by this guide groove, and the door The lock is fixed on the car door, so that the movement of the car door is restricte...

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