Cross slider type sliding plug door mechanism

Abstract

The invention discloses a cross slider type sliding plug door mechanism, relates to an opening / closing and sealing mechanism of a sliding plug door for a high-speed train, and is particularly applied to opening / closing and sealing the door of a subway or the high-speed train. The cross slider type sliding plug door mechanism consists of a stepping motor, a screw rod, a screw rod nut, a support, a main shaft, a cross slider, a guide rod, a sliding plug door body, a guide wheel and a guide slot. The main shaft is fixed on the support. One hole in the cross slider matches the main shaft and can slide along the main shaft, and another hole of the cross slider perpendicular to the hole is matched with the guide rod. The sliding plug door body is fixedly coupled to the guide rod through a bolt. The guide wheel is arranged on the guide rod, and is limited in the guide slot to move. The guide slot is made into a shape of a line and a circular arc. When the guide wheel is driven by the cross slider to move along the guide slot, the guide wheel drives the sliding plug door to open and close and the sliding plug movement is realized. The movement of the cross slider is realized by driving the screw rod to rotate through the stepping motor, so the screw rod nut moves linearly, and the screw rod nut is fixedly coupled to the cross slider.

Description

technical field [0001] The cross slider type sliding door mechanism of the present invention relates to a switch and sealing mechanism of a high-speed train sliding door, and is especially suitable for the opening and closing and sealing of subway or high-speed train doors. Background technique [0002] The common train plug door is two doors, which realize the movement of opening or closing. In order to realize the sealing when closing the door, an inward plug pressing movement must be added to ensure a good sealing effect after the door is closed. In order to realize this function, there are three different types of mechanisms at home and abroad. The first type is represented by the domestic mechanism, which mainly realizes the opening and closing of the door along the x direction, and realizes the plug movement along the y direction to achieve sealing. However, the main shaft moving along the x direction is not fixed, and it moves along the y direction at the same time, s...

AI Technical Summary

Problems solved by technology

In order to realize this function, there are three different types of mechanisms at home and abroad. The first type is represented by the domestic mechanism, which mainly realizes the opening and closing of the door along the x direction, and realizes the plug movement along the y direction to achieve sealing. However, the main axis moving along the x direction is not fixed, and it moves along the y direction at the same time, so the stability of the main axis is slightly poor, the structure size is large, and it takes up a lot of space

The second type is a mechanism represented by a foreign company, which realizes the opening and closing of the door along the x direction. The main shaft moving in the x direction is fixed and has good rigidity. The double rocker mechanism realizes the plug of the door, its rigidity is good but the size is large

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