Guide-column-free sliding plug door mechanism

Abstract

The invention relates to a guide-column-free sliding plug door mechanism. The door mechanism comprises a door mechanism and door plates symmetrically arranged on the door mechanism. Slideways are arranged above the door plates on the door mechanism; each slideway comprises a straight line section and an arc line section; first guide wheels slidably arranged in the slideways are fixed to the ends,close to each other, of the tops of the door plates. Mounting plates are arranged on the door mechanism and located above the door plates in a relative sliding mode in the width direction of the doorplates, crank arm mechanisms with longitudinal displacement compensation are arranged between the mounting plates and the door plates, and a driving device for driving the two mounting plates to slideoppositely or reversely is further arranged on the door mechanism. When the door is opened and closed, the driving device drives the mounting plates to slide back and forth, under the driving of thecrank arm mechanisms, opening and closing of the door plates can be achieved, the door plates can slide along the slideways, plugging and pulling of the door plates are achieved, a plurality of guidecolumns and linear bearings do not need to be arranged, and compared with an existing driving structure, the guide-column-free sliding plug door mechanism has the advantages of being simple in structure, low in machining precision requirement, convenient to assemble, wide in operating condition application range and the like.

Description

technical field [0001] The invention relates to the field of rail transit sliding doors, in particular to a column-free sliding door mechanism. Background technique [0002] Existing sliding doors of urban public transport vehicles mainly include two types, one is common sliding doors, and the two door panels only slide relative to each other to realize the opening and closing of the vehicle door. There is a nut pair on the door panel that cooperates with the double-ended left and right screw rods. By turning the double-ended left and right screw rods, the two door panels can approach and move away from each other; the other type is the plug door, which has a plug and a There are two actions of pulling. When the door is closed, the door panel is inserted into the doorway from the outside of the car to make it closed and sealed. When the door is opened, the door panel slides a certain distance and then slides along the outside of the car body. The method is also to drive the...

AI Technical Summary

Problems solved by technology

[0004] However, the existing mechanism has many defects such as high processing precision, complex assembly, heavy weight, high price of linear bearings, high purchase cost and high maintenance cost in the later period. This application provides a plug-in door drive mechanism that can achieve the same function to overcome the above problems.

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