CN110761636A

CN110761636A - Lock mechanism of unmanned subway vehicle emergency evacuation door

Info

Publication number: CN110761636A
Application number: CN201911238075.2A
Authority: CN
Inventors: 隋礼平; 方炅任; 聂波; 董磊; 周坤
Original assignee: CRRC Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-02-07

Abstract

The utility model provides a latch mechanism of urgent sparse door of unmanned railcar which characterized in that: the mechanical lock is arranged at one end of a seat plate by adopting a connecting rod type lock mechanism, a spring bolt contact head is arranged on a spring bolt, and a contact switch is triggered below the spring bolt contact head; an electronic lock is arranged behind a lock tongue at the other end of the seat board, the electronic lock is connected with a mandril, and a contact switch is triggered below the mandril and used for detecting the states of the mandril and the electronic lock so as to unlock or lock the evacuation door; the lock tongues at two ends are jointly and movably connected to the rotating arm through respective connecting rods, the handle is fixed on the rotating arm, the rotating arm is movably connected to the seat plate, and the rotating arm is also connected with a spring for keeping the handle at an unlocking or locking position; the invention ensures that the lock mechanism of the unmanned subway vehicle has the locking and unlocking functions of a normal lock mechanism, and also adds a remote control function, thereby preventing accidents caused by the opening of an emergency evacuation door by misoperation of people and improving the safety of the vehicle.

Description

Lock mechanism of unmanned subway vehicle emergency evacuation door

Technical Field

The invention relates to a door lock mechanism of an emergency evacuation door of a subway vehicle, in particular to a lock mechanism of an emergency evacuation door of an unmanned subway vehicle.

Background

Along with social development, unmanned subway vehicles are applied more and more, a driver cab of a vehicle driven by a person is separated from a passenger room, passengers cannot enter the driver cab, and an emergency evacuation door can be prevented from being opened by misoperation of the person. The cab of the unmanned vehicle is used as a passenger room, and effective measures are required to prevent safety accidents caused by the fact that the emergency evacuation door is opened by misoperation of passengers.

Disclosure of Invention

The invention aims to provide a door lock mechanism of an emergency evacuation door of an unmanned subway vehicle, which adopts a structure of a mechanical lock and an electronic lock, locks a bolt of the mechanical lock by the electronic lock, and the electronic lock is remotely controlled by a master console, so that accidents caused by the fact that the emergency evacuation door is opened by misoperation of people are prevented, and the safety of the vehicle is improved.

In order to achieve the above object, the present invention provides a lock mechanism of an emergency evacuation door of an unmanned subway vehicle, characterized in that: the mechanical lock is arranged at one end of a seat plate by adopting a connecting rod type lock mechanism, a spring bolt contact head is arranged on a spring bolt, and a contact switch is triggered below the spring bolt contact head; an electronic lock is arranged behind a lock tongue at the other end of the seat board, the electronic lock is connected with a mandril, and a contact switch is triggered below the mandril and used for detecting the states of the mandril and the electronic lock so as to unlock or lock the evacuation door; the lock tongues at two ends are jointly and movably connected to the rotating arm through respective connecting rods, the handle is fixed on the rotating arm, the rotating arm is movably connected to the seat plate, and the rotating arm is further connected with a spring for keeping the handle at an unlocking or locking position.

The seat board is connected with a shaft seat, and the rotating arm is movably connected with the shaft seat through a central shaft of the shaft seat, so that the matching precision of the rotating arm and the central shaft of the shaft seat is improved.

The electronic lock end seat plate is connected with a mounting plate, one end of the ejector rod is movably connected to the mounting plate, the other end of the ejector rod is connected with the electronic lock, and the contact surface of the ejector rod and the lock tongue is a step surface and used for supporting the lock tongue to keep a locking state under the locking state.

The shaft seat and the mounting plate are equal in thickness, so that the connecting rod can stretch smoothly.

The two ends of the seat board are provided with lock seats for guiding and limiting the lock tongue.

The lock mechanism of the unmanned subway vehicle comprises a mechanical lock and an electronic lock, wherein the mechanical lock is a four-bar mechanism, and the electronic lock and a contact switch are connected below a lock tongue at one end of the mechanical lock through a mandril, so that the lock mechanism of the unmanned subway vehicle has the locking and unlocking functions of a normal lock mechanism, and is added with a remote control function, thereby preventing accidents caused by the fact that people open an emergency evacuation door by misoperation and improving the safety of the vehicle.

Drawings

FIG. 1 is a schematic view of a lock mechanism fully closed;

FIG. 2 is a schematic view of the latch mechanism activating the switch;

fig. 3 is a schematic view of the locking mechanism when open.

Detailed Description

Referring to fig. 1-3, the present lock mechanism consists of: the lock comprises a seat plate 1, a lock seat 2, a bolt 3, a connecting rod 4, a rotating arm 5, a shaft seat 6, a handle 7, a spring 8, a bolt collision head 9, a mechanical lock contact switch 10, an electronic lock contact switch 11, an electronic lock 12, a mandril 13, a pin shaft 14 and a mounting plate 15.

All parts of the lock mechanism are mounted on the seat plate 1. The lock seats 2 are arranged at two ends of the seat plate and used for guiding and limiting the lock bolts, and the lock bolts 3 in the lock seats can move in a telescopic mode; the bolt 3 is connected with the connecting rod 4 by a pin 14, and the other end of the connecting rod is connected with the rotating arm 5 by a pin; the rotating arm is fixed to the seat plate through the shaft seat 6 and can rotate around the shaft seat; a handle 7 is fixed on the rotating arm and is a part operated by a human hand; the tumbler is connected with a spring 8 which can keep the handle at an unlocking or locking position; a spring bolt contact head 9 is arranged on the spring bolt, and the spring bolt can trigger a mechanical lock contact switch 10 when stretching; and an electronic lock 12 is arranged behind the bolt on the other side, the electronic lock is connected with a mandril 13, and the other end of the mandril is fixed on a mounting plate 15 of the seat plate. The electronic lock extends out to drive the mandril 13 to clamp the bolt and can not return, and the bolt can return when the electronic lock retracts; and an electronic lock contact switch 11 is arranged below the ejector rod and used for detecting the states of the ejector rod and the electronic lock.

The working principle is as follows: the handle and the rotary arm are normally locked, the electronic lock extends out, and the ejector rod is driven to abut against the lock tongue and cannot return, so that the mechanical lock cannot be unlocked; when the door needs to be opened, the main control console controls the electronic lock to retract, the ejector rod is driven to leave the lock tongue, the lock tongue can retract, and the mechanical lock can be unlocked.

When someone pulls the handle of the lock mechanism for a certain angle, the contact switch at the lock tongue is triggered, an alarm signal is sent to the main control console, and meanwhile, the video monitoring and intercom system is turned on. The main control console judges the field condition, if the emergency evacuation door is allowed to be opened, the electronic lock is controlled to be unlocked remotely, and field personnel can continue to operate to open the mechanical lock and open the door; if the master control console does not allow the emergency evacuation door to be opened, the electronic lock maintains a locked state, and the mechanical lock cannot be opened so that the door cannot be opened.

When the mechanical lock is started, the handle is pulled only to trigger the switch, the unlocking stroke of the lock tongue is far not reached, the mechanical lock is still reliably locked and is clamped by the ejector rod, and the unlocking cannot be continuously operated.

If the vehicle is powered off due to fire and other reasons, the electronic lock is automatically unlocked when power is lost, and the handle can be directly pulled to unlock the door.

Claims

1. The utility model provides a latch mechanism of urgent sparse door of unmanned railcar which characterized in that: the mechanical lock is arranged at one end of a seat plate by adopting a connecting rod type lock mechanism, a spring bolt contact head is arranged on a spring bolt, and a contact switch is triggered below the spring bolt contact head; an electronic lock is arranged behind a lock tongue at the other end of the seat board, the electronic lock is connected with a mandril, and a contact switch is triggered below the mandril and used for detecting the states of the mandril and the electronic lock so as to unlock or lock the evacuation door; the lock tongues at two ends are jointly and movably connected to the rotating arm through respective connecting rods, the handle is fixed on the rotating arm, the rotating arm is movably connected to the seat plate, and the rotating arm is further connected with a spring for keeping the handle at an unlocking or locking position.

2. The lock mechanism for an emergency evacuation door of an unmanned subway vehicle as claimed in claim 1, wherein: the seat board is connected with a shaft seat, and the rotating arm is movably connected with the shaft seat through a central shaft of the shaft seat.

3. The lock mechanism for an emergency evacuation door of an unmanned subway vehicle as claimed in claim 1, wherein: the electronic lock end seat plate is connected with a mounting plate, one end of the ejector rod is movably connected to the mounting plate, the other end of the ejector rod is connected with the electronic lock, and the contact surface of the ejector rod and the lock tongue is a step surface and used for supporting the lock tongue to keep a locking state under the locking state.

4. The lock mechanism for an emergency evacuation door of an unmanned subway vehicle as claimed in claim 3, wherein: the mounting plate and the shaft seat are equal in thickness.

5. The lock mechanism for an emergency evacuation door of an unmanned subway vehicle as claimed in claim 1, wherein: the two ends of the seat board are provided with lock seats for guiding and limiting the lock tongue.