Electric locking device, railway vehicle door and working method

Abstract

The invention discloses an electric locking device, a railway vehicle door and a working method. The electric locking device comprises a planet reducing separation and reunion assembly, an inner swingarm mechanism, a spring bolt, a lock body and a lock catch. The planet reducing separation and reunion assembly comprises a ratchet, a planet wheel and a sun wheel. The planet wheel is engaged to theratchet and the sun wheel, the sun wheel is connected to a power device for driving the sun wheel to rotate, the planet wheel is connected to the inner swing arm mechanism through a planet carrier, the ratchet is also connected to a ratchet braking device, the ratchet braking device comprises a ratchet, the spring bolt is connected to the lock body, an elastic device which makes the spring bolt be far away from the lock catch is also arranged between the spring bolt and the lock body, and a one-way device which makes the sun wheel only rotate toward a locking direction of the spring bolt is also arranged between the sun wheel and the lock body. High speed small torque power of a reducing motor is converted into low speed large torque power through the reducing device to drive the spring bolt to pressurize the lock catch mounted to a door leaf, so that the pressurizing process of the door leaf and a door frame is finished. In the pressurizing process, the reducing motor is powered offfor protecting the motor.

Description

technical field [0001] The invention relates to the technical field of rail vehicle door locks, in particular to an electric locking device, a rail vehicle door and a working method. Background technique [0002] The electric double-opening plug-and-pull door system currently used in rail vehicles mainly meets the door system strength requirements, noise requirements, and sound insulation and heat insulation indicators, but has no airtightness indicators. When the vehicle enters and exits the tunnel and the trains meet in the tunnel, due to the instantaneous change of the air pressure, the airflow will enter the interior of the carriage from the small gap in the door gap, causing noise and even uncomfortable feelings such as tinnitus for passengers. Therefore need to design a kind of vehicle door lock that can satisfy the airtightness of railway car door. Contents of the invention [0003] In order to solve the deficiencies in the prior art, the invention provides an elec...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies in the prior art, the present invention provides an electric locking device, a rail vehicle door and a working method, which solves the technical problem of poor airtightness of the rail vehicle door in the prior art

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