Mechanical lock for fast escape door

Abstract

The invention discloses a mechanical lock for a fast escape door. The mechanical lock is installed on an upper door body and a lower door body of the fast escape door and comprises a handle mechanism, a connecting rod mechanism and a locking mechanism. The handle mechanism is connected with the connecting rod mechanism. The connecting rod mechanism is connected with the locking mechanism, and the handle mechanism and the connecting rod mechanism are fixedly connected with the upper vehicle door body. The locking mechanism is fixedly connected with the upper door body and the lower door body, and movable connection between the upper door body and a vehicle body, between the lower door body and the vehicle body and between the upper door body and the lower door body is achieved through the locking mechanism. By means of the mechanical lock for the fast escape door, a mechanical transmission device is adopted, the unlocking reliability under the severe and complex conditions is improved, equipment operation is simple, maintenance is easy, and the escaping speed of passengers can be effectively increased when accidents happen.

Description

technical field [0001] The invention relates to a mechanical locking device, in particular to a mechanical lock for a quick escape door. Background technique [0002] In daily life, traveling by public transportation has become the choice of more and more people. With the continuous advancement of urbanization, the urban population is gradually increasing. For densely populated cities, the load of public transportation is increasing, such as bus Public transportation such as buses and subways are often overcrowded during peak hours. Once accidents such as traffic accidents, fires or equipment failures occur, the doors for getting on and off the cars are often too narrow due to the crowding of people on board, and it is impossible to evacuate the crowd in time, resulting in many tragedies. The existing locking mechanism of the car door often has a complex structure, poor unlocking speed and reliability, and is difficult to maintain, and the maintenance cost is high. Conten...

AI Technical Summary

Problems solved by technology

Once a traffic accident, fire or equipment failure occurs, the doors for getting on and off the car are often too narrow due to the crowding of people on board, and it is impossible to evacuate the crowd in time, resulting in many tragedies.

The existing locking mechanism of the car door is often complex in structure, the speed and reliability of unlocking are poor, and it is difficult to maintain and the maintenance cost is high

Images