An anti-failure protection device for a train sliding door

Abstract

The invention discloses a train sliding plug door anti-failure protection device which is composed of a lateral wall fixing plate, a rotating shaft sleeve, a rotating shaft rotary button, a door body fixing plate, an upper pin roll, a lower pin roll, a rotating lock sleeve and a knob. The rotating shaft sleeve is fixedly installed on the lateral wall fixing plate, the left end and the right end of the rotating shaft rotary button are movably installed in the rotating shaft sleeve and the rotating lock sleeve, a vertical slot and a transverse slot connected with the vertical slot which enable the rotating shaft rotary button to rotate are formed in the sleeve walls of the rotating shaft sleeve and the rotating lock sleeve respectively, the upper pin roll and the lower pin roll adopt the boss structure and are fixedly installed at the upper end and the lower end of the door body fixing plate, a recessed inclined wedge cut is arranged in the connection face of the right side of the lower pin roll and the lower boss, an inclined wedge boss is arranged at the lower end of the rotating lock sleeve, and a handle is fixedly installed on the rotating lock sleeve. By means of the technical scheme, the device is simple in structure, safe and reliable, capable of ensuring that the door body of the sliding plug door does not fall when a transmission mechanism or a pull rod fails in work, does not affecting normal opening and closing of the sliding plug door and ensures life safety of passengers.

Description

technical field [0001] The invention relates to a sliding door on a train, in particular to an anti-failure protection device for a sliding door of a train. Background technique [0002] The sliding doors used by railway passenger trains mostly have a pneumatic push rod type transmission sliding mechanism to realize the opening and closing of the sliding doors. Especially when the sliding door is closed when the train is running, the push rod is in an extended state, and the sliding door is very likely to cause fatigue and fracture of the push rod under the vibration and bumpy working conditions of the train. Once the transmission mechanism fails or the push rod breaks due to fatigue, it may cause an accident that the sliding door will fall. Important railway passenger car components urgently need a protection device for preventing sliding doors from failing, as another barrier to ensure the safety of passengers. Contents of the invention [0003] The object of the prese...

AI Technical Summary

Problems solved by technology

Especially when the sliding door is closed when the train is running, the push rod is in the extended state, and the sliding door is very easy to cause fatigue and breakage of the push rod under the vibration and bumpy working conditions of the train

Once the transmission mechanism fails or the push rod breaks due to fatigue, it may cause an accident that the sliding door will fall. As an important railway passenger car component, there is an urgent need for a protection device to prevent the failure of the sliding door, as another barrier to ensure the safety of passengers

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