Interlocking device for isolating device and emergency unlocking device

Abstract

The utility model discloses a device for mutually locking an isolating device and an emergency unlocking device. The device comprises the isolating device, the emergency unlocking device and an interlocking structure, the interlocking structure comprises a pulley, a linkage mechanism and a lock rod; the pulley is arranged towards an isolation spring bolt of the isolation device and can be pushed by the isolation spring bolt to rotate, the pulley is connected with the lock rod through the linkage mechanism, and the lock rod is arranged on an emergency unlocking wheel of the emergency unlocking device and locks or releases the freedom degree of the emergency unlocking wheel. In the reset state, the isolation device is closed, the interlocking structure is located at the reset position, and the emergency unlocking device is not affected; and in the isolation state, the isolation device is started, the pulley is pushed by the isolation spring bolt to rotate, the lock rod is driven by the linkage mechanism, and the freedom degree of the emergency unlocking wheel is locked. According to the utility model, when the isolation device is activated, the emergency unlocking device cannot be operated, and reliable closing of the isolated vehicle door is ensured.

Description

Technical Field

[0001] The utility model relates to a device for mutually locking an isolation device and an emergency unlocking device in the field of rail transit vehicle doors. Background Art

[0002] A door isolation device is a safety device used to isolate a faulty door from the entire train door system in an emergency or when a door system malfunctions, ensuring the train can safely return to the maintenance site and ensuring the safe operation of the train or vehicle. Emergency door unlocking devices are designed to provide a means of quickly unlocking doors in an emergency. These devices are typically designed to allow passengers to quickly open the doors in an emergency, such as an accident or emergency situation. This ensures that in an emergency, passengers can quickly and easily unlock the doors and escape the vehicle.

[0003] The isolation and emergency release mechanisms in current rail transit door systems are separate devices. Because the isolation lock is weaker than the mechanical locking system, there is a risk of the door accidentally opening when a passenger operates the emergency release mechanism. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a device in which an isolation device and an emergency unlocking device are locked to each other, so that when the isolation device is activated, the emergency unlocking device cannot be operated, thereby ensuring the reliable closure of the isolated vehicle door.

[0005] A technical solution to achieve the above object is: a device in which an isolation device and an emergency unlocking device are mutually locked, comprising an isolation device and an emergency unlocking device, and also comprising an interlocking structure;

[0006] The interlocking structure includes a pulley, a linkage mechanism, and a locking rod; the pulley is arranged toward the isolation lock tongue of the isolation device and can rotate under the push of the isolation lock tongue. The pulley is connected to the locking rod through the linkage mechanism. The locking rod is arranged on the emergency unlocking wheel of the emergency unlocking device to lock or release the freedom of the emergency unlocking wheel;

[0007] When in the reset state, the isolation device is closed, the interlocking structure is in the reset position, and the emergency unlocking device is not affected;

[0008] When in the isolation state, the isolation device is activated, the pulley rotates under the push of the isolation lock tongue, and drives the locking rod through the linkage mechanism to lock the freedom of the emergency unlocking wheel.

[0009] Furthermore, the linkage mechanism is a steel wire rope, one end of the steel wire rope is wound around the pulley, and the other end is connected to the locking rod.

[0010] Furthermore, the middle pivot of the locking rod is connected to one side of the emergency unlocking wheel, one end of which is connected to the wire rope, and the other end is a hook-type structure. The emergency unlocking wheel is provided with a clamping protrusion that matches the hook-type structure. When the locking rod is rotated by the traction of the wire rope, the hook-type structure is clamped on the clamping protrusion, locking the freedom of the emergency unlocking wheel.

[0011] Furthermore, the pulley is provided with a torsion spring and is reset under the action of the torsion spring.

[0012] Furthermore, the locking rod is provided with a torsion spring, and is reset under the action of the torsion spring.

[0013] The advantages of this utility model are:

[0014] 1. When the isolation device is activated, the emergency unlocking device cannot be operated, avoiding the risks caused by operating the emergency unlocking device when isolating the door leaf.

[0015] 2. After the isolation device is reset, the emergency unlocking device is automatically released.

[0016] 3. Simple mechanical structure and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a pulley in a reset state when an isolation device and an emergency unlocking device are locked to each other according to the present invention;

[0018] Figure 2 This is a structural schematic diagram of a locking rod in a reset state of a device in which an isolation device and an emergency unlocking device are locked to each other according to the present invention;

[0019] Figure 3 This is a schematic structural diagram of a pulley when the device in which the isolation device and the emergency unlocking device are locked to each other is in an isolation state according to the present invention;

[0020] Figure 4 The utility model is a structural schematic diagram of a locking rod when the device in which an isolation device and an emergency unlocking device are locked to each other is in an isolation state. DETAILED DESCRIPTION

[0021] In order to better understand the technical solution of the present invention, the following is a detailed description through specific embodiments:

[0022] See also Figures 1 to 4 The utility model provides a device in which an isolation device and an emergency unlocking device are locked to each other, and the isolation device and the emergency unlocking device are linked through an interlocking structure.

[0023] The interlocking structure includes a pulley 1, a linkage mechanism, and a locking rod 3. Pulley 1 is positioned toward the isolation lock tongue 4 of the isolation device and can rotate under the push of the isolation lock tongue 4. Pulley 1 is connected to the locking rod 3 via the linkage mechanism. The locking rod 3 is mounted on the emergency release wheel 5 of the emergency release device, locking or releasing the degrees of freedom of the emergency release wheel 5.

[0024] More specifically, the linkage mechanism is a wire rope 6, one end of which is wrapped around pulley 1 and the other end is connected to locking rod 3. The middle of locking rod 3 is pivotally connected to the bracket of emergency release wheel 5. One end of the wire rope 6 is connected to the wire rope, while the other end is a hook-shaped structure that can rotate under the traction of wire rope 6. Emergency release wheel 5 is equipped with a latching protrusion 51 that mates with the hook-shaped structure. When the locking rod rotates due to the traction of the wire rope, the hook-shaped structure latches onto the latching protrusion 51, locking the emergency release wheel's degree of freedom.

[0025] The pulley 1 and the locking rod 3 are provided with a torsion spring 7, and reset is performed under the action of the torsion spring.

[0026] In the reset state, the pulley and the lock are kept in the initial position under the action of the torsion spring.

[0027] When the isolation device is activated, the isolation lock shaft is rotated, driving the isolation lock tongue to the right, thereby activating the isolation device. As the isolation lock tongue moves to the right, it pushes the pulley to rotate, which in turn pulls the wire rope to drive the lock rod, causing the lock rod to lock the emergency release wheel, thereby locking the emergency release device.

[0028] By rotating the isolation lock shaft and resetting the isolation device, the pulley and the lock rod release the lock of the emergency unlocking wheel under the action of the torsion spring.

[0029] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A device in which an isolation device and an emergency unlocking device are locked to each other, comprising an isolation device and an emergency unlocking device, characterized in that: It also includes interlocking structures; The interlocking structure includes a pulley, a linkage mechanism, and a locking rod; the pulley is arranged toward the isolation lock tongue of the isolation device and can rotate under the push of the isolation lock tongue. The pulley is connected to the locking rod through the linkage mechanism. The locking rod is arranged on the emergency unlocking wheel of the emergency unlocking device to lock or release the freedom of the emergency unlocking wheel; When in the reset state, the isolation device is closed, the interlocking structure is in the reset position, and the emergency unlocking device is not affected; When in the isolation state, the isolation device is activated, the pulley rotates under the push of the isolation lock tongue, and drives the locking rod through the linkage mechanism to lock the freedom of the emergency unlocking wheel.

2. A device according to claim 1 wherein the isolation device and the emergency unlocking device are mutually locked, characterized in that: The linkage mechanism is a steel wire rope, one end of which is wound around the pulley, and the other end is connected to the locking rod.

3. A device according to claim 2 wherein the isolation device and the emergency unlocking device are mutually locked, characterized in that: The middle pivot of the locking rod is connected to one side of the emergency unlocking wheel, one end of which is connected to the wire rope, and the other end is a hook-shaped structure. The emergency unlocking wheel is provided with a clamping protrusion that matches the hook-shaped structure. When the locking rod is rotated by the traction of the wire rope, the hook-shaped structure is clamped on the clamping protrusion, locking the freedom of the emergency unlocking wheel.

4. The device according to claim 1, wherein the isolation device and the emergency unlocking device are mutually locked, characterized in that: The pulley is provided with a torsion spring and is reset under the action of the torsion spring.

5. The device according to claim 1, wherein the isolation device and the emergency unlocking device are mutually locked, characterized in that: The locking rod is provided with a torsion spring and is reset under the action of the torsion spring.

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