Emergency evacuation treadlock

Abstract

The utility model discloses an emergency evacuation pedal locking device, including lock and draw tight lock, the lock is installed on the ramp surface, and draw tight lock is installed on the pedal, draw tight lock is connected with lock through the lock tongue, the utility model discloses a special oblique lock is arranged in the specific position of the ramp back, and cooperates with the draw tight lock of the installation on the transition pedal, realizes the manual unlocking operation of free before the deployment of evacuation system, and normal locking when not deploying.

Description

Technical Field

[0001] This utility model relates to the field of rail transit door systems, and in particular to an emergency evacuation pedal locking device. Background Technology

[0002] Currently, in the emergency evacuation door system of rail transit, the transition step is not locked when the evacuation system is not deployed. Unauthorized personnel can approach and lift the transition step, thereby gaining access to the door retraction device. If the retraction device is operated abnormally or intentionally damaged, it will affect the normal deployment of the evacuation system in the next operation, creating safety hazards. In severe cases, the evacuation system may not be able to be deployed in an emergency.

[0003] If only a standard locking device is added to the transition pedal, an operation to unlock the transition pedal will inevitably be added before the evacuation system is deployed, which contradicts the original intention of the evacuation system to be simple to open with one click in an emergency.

[0004] Therefore, it is necessary to develop new emergency evacuation pedal locking devices to overcome the above problems. Summary of the Invention

[0005] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides an emergency evacuation pedal locking device. By arranging a special inclined locking stop at a specific position on the back of the ramp, and cooperating with the tension lock installed on the transition pedal, it can realize the elimination of manual unlocking operation before the deployment of the evacuation system and normal locking when not deployed.

[0006] Technical solution: The present invention provides an emergency evacuation ramp locking device, characterized in that it includes a locking stop and a tension lock; the locking stop is installed on the ramp surface, and the tension lock is installed on the ramp; the tension lock is connected to the locking stop via a locking tongue.

[0007] The ramp mentioned above is an emergency evacuation ramp, located in the rail transit emergency evacuation door system.

[0008] The aforementioned pedal is located in the emergency evacuation door system of rail transit.

[0009] The tension lock is equipped with a dedicated key.

[0010] The key is used to open and close the locking mechanism.

[0011] Beneficial effects: Compared with the prior art, this utility model has the following significant advantages: This utility model utilizes the relative movement relationship between the back of the ramp and the transition step during the deployment of the evacuation system to achieve the following: no unlocking operation is required on the transition step before the evacuation system is deployed; the transition step can be automatically unlocked during the deployment process. When the evacuation system is not deployed, the transition step can be locked normally, and it cannot be unlocked and lifted without an unlocking key. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model in use;

[0013] Figure 2 This is a front structural diagram of the present invention;

[0014] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0015] Figure 4 This is a schematic diagram of the combined structure of this utility model;

[0016] Figure 5 This is an exploded structural diagram of the present invention;

[0017] Figure 6 This is a side view of the structure of this utility model;

[0018] In the diagram, 1 is the locking position; 2 is the tension lock. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] This utility model discloses an emergency evacuation ramp locking device, comprising a locking stop 1 and a tension lock 2. The locking stop 1 is installed on the ramp surface, and the tension lock 2 is installed on the ramp. The tension lock 2 is connected to the locking stop 1 via a locking tongue. The ramp is an emergency evacuation ramp located within the rail transit emergency evacuation door system. The ramp is also located within the rail transit emergency evacuation door system. The tension lock 2 is equipped with a dedicated key. The key is used to open and close the tension lock 2.

[0021] like Figure 1 As shown, lock 1 is installed on the surface of the ramp, and tension lock 2 is installed on the pedal. When the evacuation system is not deployed, lock 1 is fixed with the ramp. When the pedal is turned clockwise, the locking tongue of tension lock 2 is blocked by lock 1 and cannot be opened.

[0022] like Figure 4 , 5 As shown, the pedal can be lifted after the special key is used to unlock and tighten lock 2 clockwise.

[0023] like Figure 6As shown, when the evacuation system is deployed, the locking stop 2 moves towards the upper left of the view as the ramp rotates counterclockwise, and the tension lock 2 moves towards the lower part of the view as the pedal moves counterclockwise. The locking tongue of the tension lock 2 automatically disengages from the locking stop 1 without operation, and the ramp can be deployed normally.

[0024] In situations where it is necessary to deploy ramps without unlocking them and where the pedals and ramps have similar relative motion, this device can be used or the shape and position of the locking mechanism can be slightly modified.

[0025] This invention utilizes the relative movement between the back of the ramp and the transition step during the deployment of the evacuation system to achieve the following: the transition step does not need to be unlocked before deployment, and it can be automatically unlocked during deployment. When the evacuation system is not deployed, the transition step can be locked normally, and cannot be unlocked or lifted without an unlocking key.

[0026] This utility model has fewer parts and lower cost; by utilizing the movement relationship between the ramp and the pedal, a locking mechanism is deployed at a specific position to achieve manual unlocking before the evacuation system is deployed and normal locking when not deployed.

Claims

1. An emergency evacuation pedal locking device, characterized in that: It includes a locking stop (1) and a tension lock (2); the locking stop (1) is installed on the surface of the ramp, and the tension lock (2) is installed on the pedal; the tension lock (2) is connected to the locking stop (1) through a locking tongue; When the evacuation system is not deployed, the locking stop (1) is fixed with the ramp. When the pedal is turned clockwise, the locking tongue of the tightening lock (2) is blocked by the locking stop (1) and cannot be opened.

2. The emergency evacuation pedal locking device according to claim 1, characterized in that: The ramp is an emergency evacuation ramp, located in the rail transit emergency evacuation door system.

3. The emergency evacuation pedal locking device according to claim 1, characterized in that: The aforementioned pedal is located in the emergency evacuation door system of rail transit.

4. The emergency evacuation pedal locking device according to claim 1, characterized in that: The aforementioned tension lock (2) is equipped with a dedicated key.

5. The emergency evacuation pedal locking device according to claim 4, characterized in that: The key is used to open and close the tightening lock (2).

Images