CN103612966B - Elevator car door lock manual unlocking device - Google Patents

Abstract

The invention relates to a manual unlocking device for an elevator car door lock, which comprises a car door upper sill, a car door door panel and a car door hanging plate. The car door upper sill is provided with a car door guide rail and a lock seat. On the door hanging plate, the car door hanging plate can slide along the car door guide rail. The door knife is installed on the car door hanging plate. The door knife is equipped with a lock hook shaft and a car door lock hook that can rotate around the lock hook axis. And the return spring that can be used for the reset of the car door lock hook, the hook front end of the car door lock hook matches the lock position of the lock seat; On the door panel of the car door, the triangular lock is arranged on the safety contact plate, and one end of the stay rope is connected with the rotating shaft of the triangular lock, and the other end is connected with the lock hook of the car door. The device can easily unlock the elevator car door lock outside the hall by using a triangular key, and has the advantages of simple structure, convenient operation, low cost, safe and reliable use, and the like.

Description

Manual unlocking device for elevator car door lock

technical field

The invention relates to the technical field of elevators, in particular to a device for manually unlocking elevator car door locks.

Background technique

The national standard stipulates that the sill line of the elevator car and the shaft wall should not exceed a certain distance, but the car door equipped with a car door lock is not limited by this distance. Simultaneously in recent years constantly have the safety accident of picking up the car door in the elevator operation to take place, the elevator is equipped with car door lock and becomes current trend.

The function of the car door lock is that when the elevator is running or in a non-leveling area, it is in a locked state to prevent the danger of opening the car door due to the passenger's prying in the car door. Open the car door. At present, the landing door (also called the hall door) is mainly opened and closed by the car door when it is leveling. When the elevator fails, someone in the car faints or the engineer needs to enter the car, and the car is just in the leveling area. , the door knife and the landing door lock roller are just in the fastened state, and the hall door can only be opened for a certain distance with the triangular key, that is, it is difficult to open the hall door and car door outside the hall in the leveling area. There is a method for unlocking the car door lock without other tools.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned technical problems, and provide a manual unlocking device that can simply unlock the elevator car door lock outside the hall and only need to use a triangular key.

The purpose of the present invention is achieved through the following technical solutions:

A manual unlocking device for an elevator car door lock, comprising a car door upper sill, a car door door panel and a car door hanging plate. The car door upper sill is provided with a car door guide rail and a lock seat. On the board, the hanging plate of the car door can slide along the guide rail of the car door. A door knife is installed on the hanging plate of the car door. The reset spring for the reset of the car door lock hook, the hook front end of the car door lock hook matches the lock position of the lock seat; it also includes a triangular lock, a safety touch plate and a pull rope, and the safety touch plate is installed on the car door door plate. The triangular lock is arranged on the safety contact plate, and one end of the stay rope is connected with the rotating shaft of the triangular lock, and the other end is connected with the lock hook of the car door.

Further, the rotating shaft of the triangular lock is provided with a rotating rod perpendicular to it, and one end of the pull cord is connected to the rotating rod.

Further, a return spring for returning the rotating rod is provided.

Further, the pull cord is arranged in the cavity of the safety touch panel.

Further, the pull cord is a non-stretchable pull cord.

Further, the door knife includes a door knife bottom plate and two left and right swingable swing rods arranged on the door knife bottom plate, and the lock hook shaft and the car door lock hook that can rotate around the lock hook axis are also set on the door On the knife base plate, the rear end of the car door lock hook is matched with one of the left and right swing bars, and the return spring is arranged between the car door lock hook and the door knife base plate.

Further, it also includes a landing door hanging plate, a landing door lock is installed on the landing door hanging plate, and two landing door lock rollers are arranged on the landing door lock, and the two landing door lock rollers can be used when the elevator is leveling. Enter between the left and right swing bars of the door knife.

Further, there is a certain amount of lateral movement between the hook front end of the car door lock hook and the locking position of the lock seat.

The beneficial effects of the present invention are:

1. The triangular key is used by elevator professionals to ensure that it will not be abused and misused by other personnel;

2. The pull rope is arranged in the cavity of the safety touch panel to avoid unnecessary parking failures and safety risks caused by passengers seeing or touching;

3. The two doors can be unlocked with one key, no other tools are needed, and the elevator professionals carry it with them to improve the success rate and high efficiency of rescue, and the operation is direct, simple and fast;

4. Simple structure, low cost, safe and reliable use.

Description of drawings

Fig. 1 is a schematic structural diagram of the car door lock leveling area (before unlocking) according to the embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the car door lock non-leveling area (before unlocking) according to the embodiment of the present invention.

Fig. 3 is a structural schematic diagram of the unlocked car door lock according to the embodiment of the present invention.

Fig. 4 is a sectional view of the triangular lock arrangement according to the embodiment of the present invention.

Explanation of reference signs:

1. Upper sill of car door, 2. Guide rail of car door, 3. Hanging plate of car door, 4. Door panel of car door, 5. Door knife, 5001, left swing lever, 5002, right swing lever, 5003, door knife bottom plate , 6, safety touch panel, 7, triangular lock, 7001, rotating shaft, 7002, rotating rod, 7003, return spring, 8, pull rope, 9, car door lock hook, 10, lock hook shaft, 11, return spring, 12, lock seat, 13, layer door lock roller.

Detailed ways

As shown in Fig. 1 to Fig. 4, this embodiment takes the left door panel of the elevator car door and the locking hook to be set on the right side of the swing rod as an example. The specific structure of this embodiment will be further described below in conjunction with the accompanying drawings.

A manual unlocking device for an elevator car door lock, comprising a car door upper sill 1, a car door door panel 4, a car door hanging plate 3 and a landing door hanging plate (not shown in the figure), the car door upper sill 1 is provided with a car door The door guide rail 2 and the lock seat 12, the car door door panel 4 are installed on the car door hanging plate 3, the car door hanging plate 3 can slide along the car door guide rail 2, and the car door hanging plate 3 is equipped with a door knife 5 . The door knife 5 comprises a door knife base plate 5003 and two swingable swing bars 5001, 5002 arranged on the door knife base plate 5003. The car door lock hook 9, the front end of the car door lock hook 9 matches the lock position of the lock seat 12, the rear end of the car door lock hook 9 is matched with the right swing rod 5002, and the car door lock hook 9 is matched with the door knife bottom plate 5003 A return spring 11 is arranged between them. A landing door lock is installed on the landing door hanging plate, and two landing door lock rollers 13 are arranged on the landing door lock. Between rods 5001, 5002.

The elevator car door lock manual unlocking device also includes a triangular lock 7, a safety touch panel 6 and a stay rope 8, the safety touch panel 6 is installed on the car door door panel 4, and the triangular lock 7 is arranged on the safety touch panel 6. One end of stay cord 8 links to each other with the rotating shaft 7001 of triangular lock 7, specifically, the rotating shaft 7001 of triangular lock 7 is provided with a rotating rod 7002 vertically connected with it, and one end of stay cord 8 is specifically connected with this rotating rod 7002, and stay cord 8 The other end is connected with the lock hook 9 of the car door, and a return spring 7003 for its return is provided at the rotating rod 7002 . When the stay cord 8 is designed, on the one hand it is arranged in the cavity of the safety touch panel 6 to achieve a hidden effect, making it difficult for passengers to see or touch it; on the other hand, it should be set as a non-retractable stay cord structure to ensure Transmission reliability and accuracy.

In addition, since the floor door lock roller 13 and the door knife right swing rod 5002 have a certain running safety gap, there is a certain amount of lateral movement between the hook front end of the car door lock hook 9 and the lock position of the lock seat 12, and the car door The locking hook 9 is lifted beyond the engagement range to realize unlocking.

The principle of unlocking outside the hall in this embodiment is: when the elevator is in the leveling area, the elevator is powered off, and the rescuers need to enter the car to save people. between. First use the triangular key to insert the triangular lock of the landing door to open the distance at one end of the landing door. At this time, the right swing lever 5002 of the door knife is not squeezed by the roller 13 of the landing door lock to lift the hook, and the car door lock hook 9 and the lock seat 12 are still in the meshing state. Neither the car door nor the landing door can continue to be opened. At this time, hold down the landing door with your hands, pull out the triangular key on the landing door (after pulling out, the landing door lock is in the unlocked state), insert it into the triangular lock 7 of the safety touch panel 6 on the car door, and turn the key of the triangular lock The rotating shaft 7001 and its upper rotating rod 7002, the rotation of the rotating rod 7002 makes the non-retractable stay rope 8 move, and the pulling force of the stay rope 8 will cause the car door lock hook 9 to rotate along the lock hook shaft 10 to lift the hook. Push the car door to open. Since the floor door lock roller 13 is between the left and right swing bars 5001, 5002 in the door knife area, when the car door is opened, the floor door lock roller 13 is pushed by the right swing bar 5002 to continue to open the floor door. Open the door, on the other hand, the landing door lock roller 13 will squeeze the right swing lever 5002 to rotate counterclockwise, so that the car door lock hook 9 remains in the hook lifting state, thereby realizing that the car door drives the landing door to open, and the rescue process ends. When the triangular key in the safety touch panel 6 is pulled out, the return spring 7003 arranged on the rotating rod 7002 will return the rotating rod 7002, and at the same time, when the car door is pushed to close, the car door lock hook 9 will Back-moving spring 11 also will make car door lock hook 9 reset.

The above are only preferred embodiments of the present invention, and the scope of the present invention cannot be limited with this, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the description of the invention are still the same. It belongs to the scope covered by the patent of the present invention.

Claims (6)

1. A manual unlocking device for an elevator car door lock, comprising a car door upper sill, a car door door panel and a car door hanging plate, the car door upper sill is provided with a car door guide rail and a lock seat, and the car door door panel is installed on the car door On the door hanging plate, the car door hanging plate can slide along the car door guide rail. A door knife is installed on the car door hanging plate. The return spring for the reset of the car door lock hook. The front end of the car door lock hook matches the lock position of the lock seat; On the door panel, the triangular lock is arranged on the safety contact plate, one end of the pull rope is connected with the rotating shaft of the triangular lock, and the other end is connected with the car door lock hook; The door knife includes a door knife base plate and two swingable swing bars arranged on the door knife base plate. The lock hook shaft and the car door lock hook that can rotate around the lock hook axis are also arranged on the door knife base plate. , the rear end of the car door lock hook is matched with one of the left and right swing rods, and the return spring is arranged between the car door lock hook and the door knife bottom plate; It also includes a landing door hanging plate, a landing door lock is installed on the landing door hanging plate, and two landing door lock rollers are arranged on the landing door lock, and the two landing door lock rollers can enter the elevator when the elevator is leveling. Between the left and right swing bars of the door knife. 2. A manual unlocking device for elevator car door locks according to claim 1, characterized in that: the rotating shaft of the triangular lock is provided with a rotating rod perpendicular to it, and one end of the pull rope is connected to the rotating rod . 3. A manual unlocking device for an elevator car door lock according to claim 2, characterized in that: a return spring for returning the rotating rod is provided. 4. A manual unlocking device for elevator car door locks according to claim 1, 2 or 3, characterized in that the pull rope is arranged in the cavity of the safety touch panel. 5. A manual unlocking device for an elevator car door lock according to claim 1, 2 or 3, characterized in that: the pull rope is a non-stretchable pull rope. 6. A manual unlocking device for elevator car door locks according to claim 1, characterized in that there is a certain amount of lateral movement between the hook front end of the car door lock hook and the lock position of the lock seat.