I believe that when many young partners need to travel far, the first means of transportation they think of is safe, convenient and people-friendly bullet trains and trains! So, I wonder if you are interested in the structure and principle of the door? Today, Huimin transportation will learn some little knowledge about electrically controlled pneumatic sliding plug door with you.

At present, the rail transit sliding plug doors used by 25g and 25t vehicles in China usually adopt manual sliding plug doors and electric pneumatic sliding plug doors. The driving mode of electric pneumatic sliding plug doors is pneumatic and the control mode is electric control, which can realize the control of this vehicle and the centralized control of train automation; The manual sliding plug door is powered by hand and cannot realize centralized automatic control. The sealing force is increased by the pressurization device. The structure is simple and the price is cheap. The sliding plug doors of railway passenger cars are divided into inner sliding plug doors and outer sliding plug doors. Plug the door opening from the inside or outside of the vehicle. Japan adopts internal sliding doors, and some countries in Europe and the United States mostly adopt external sliding doors. At present, the outer sliding door is adopted in our country.

Definition of electrically controlled pneumatic plug door: during the opening and closing of the door, the door leaf runs along the guide rail; After the door is closed, it shall be plugged tightly with the door frame and flush with the outer side of the vehicle; After the door is opened, it is parallel to the vehicle body.

Electrically controlled pneumatic plug sliding door has the following advantages:

• the door lock is double locking, and an independent safety lock (isolation lock) is set, which is safe and reliable.

• the door leaf adopts aluminum honeycomb composite structure, which has the advantages of light weight, high strength, good sealing performance, sound insulation and heat insulation.

• the mobile bearing mechanism of the door system has the advantages of simple structure, low movement resistance, convenient installation and high reliability.

• the door system has the function of anti extrusion and automatic locking when the train speed is greater than 5km / h (5km / h signal is provided by the vehicle): in addition, it can realize the centralized control of the whole train door system.

• status display and self diagnosis function of door system.

• the door system adopts modular design with wide application range.