KR100340316B1 - Elevator car door safety locking apparatus - Google Patents

Abstract

The present invention relates to a car door safety lock of an elevator, the conventional car door safety lock of the elevator by using a solenoid has the advantage that can solve the problems caused by the noise and wear of the general mechanical car door safety lock device However, there is a lot of possibility of malfunction due to electric short circuit and external noise due to electric circuit problems and aging, and it requires a separate power supply cable for installation, causing a rise in manufacturing cost, equipment Since the driving power must be supplied to the solenoid for locking and releasing the bar, the operation cost of the elevator has been increased. Thus, the present invention provides a mechanical mechanism when the elevator car stops in the middle of a building due to a breakdown or power failure. The inside of the car by the door lock It can prevent passengers from opening the car door, prevent contact between components when the car enters the landing area as the car moves up or down, and prevents wear and noise. This prevents the passengers' safety and makes it easy to replace the existing coupling device while maintaining its characteristics.

Description

ELECTRATOR CAR DOOR SAFETY LOCKING APPARATUS}

The present invention relates to a car door safety lock of an elevator, and more particularly, to prevent passengers inside a car from opening a car door when the car of the elevator stops in the middle of a building due to breakdown or power failure.

In general, an elevator includes a car door installed in a car moving along a hoistway of a building and a landing door installed at a hoistway communicating with the hoistway at each floor of the building. Therefore, both the door and the boarding doors must be opened and closed for passengers to get on and off on each floor. In the opening and closing of the car door and the boarding door using power, a means for installing and opening the car door and the boarding door together by installing one driving source on the car side without using different power in consideration of economical efficiency is required.

On the other hand, if the passenger inside the car accidentally opens the car door when the elevator car stops at a considerable height from the corridor of the building due to a breakdown or power outage, there is a risk that the passenger may fall into the inside of the hoistway where the car runs. Elevator legislation stipulates that doors cannot be opened inside a car unless the car is in the landing area.

The door safety device of a conventional elevator is composed of a safety device of a boarding door as shown in FIG. 1 and a safety device of a car door as shown in FIG.

The safety locking device 22 of the boarding door 21 of FIG. 1 is a locking member fixed to the stopper 24 so that the boarding door 21 cannot be opened on the corridor side of the building to prevent the passenger from falling when there is no car in the landing area. The boarding door 21, which is provided with a rotatable 25 and does not have a separate driving device for the safety of passengers, has a coupling roller 26 that is powered by a coupling device of a car door. The landing door 21 is opened and closed in conjunction with a car door, and the coupling rollers 26 transmit power of the car door to the landing door and release the landing door lock state of the landing door safety lock. Will be

In addition, when the car 31 reaches the landing area, the card door safety lock of FIG. 2 releases the lock before opening the card door 32. In order to unlock the card door 32, the solenoid ( 33 is rotated in the clockwise direction by the command of a control panel (not shown) so that the plunger 34 collides with the bracket 35 installed on the card door 32 during the opening and closing movement of the card door 32. Lift to the top so that it does not occur.

Then, when the passenger safely exits the car 31, the car 31 closes the car door 32 and leaves the landing area, where the solenoid 33 of the car door safety lock rotates counterclockwise to The plunger 34 is moved downward to lock the car door 32 so that a passenger inside the car 31 cannot open the car door 32, and the interior of the car 31 during the normal operation of the elevator or during an emergency. If the passenger in the forcible attempt to open the car door 32, the bracket 35 installed on the car door 32 is no longer able to move in the opening direction of the door by the protruding plunger 34.

However, such a conventional car door safety lock device has an advantage that can solve the problems caused by the noise and wear of the general mechanical car door safety lock device by using the solenoid 33, but the problem on the electrical circuit There is a lot of possibility of malfunction due to electric short circuit and external noise due to aging and aging.In addition, a separate power supply cable is required for installation, causing rise in manufacturing cost, solenoid for locking and unlocking the device. Since the driving power must be supplied to the 33, there are many problems such as an increase in the elevator operating cost.

The present invention is to solve the above problems, not only can not prevent the passenger inside the car to open the car door when the elevator stops in the middle of the building due to failure or power outage, the car is moved up or down It is an object of the present invention to provide an elevator door lock that can prevent wear and noise by preventing contact between components when entering a landing area.

1 is a front view showing a safety door locking device of the conventional elevator

Figure 2 is a front view showing a car door safety lock of a conventional elevator

Figure 3 is a front view showing the present invention

4 is a top view of FIG. 3

5 is a front view showing the unlocked state of FIG.

6 is a front view showing a state in which the lock is released by manual opening and closing during the emergency stop of the car according to the present invention.

Explanation of symbols on the main parts of the drawings

One; Cardor frame 2; Guide rail

3; Rinse plate 4; Kador

5; Base plate 6; Drive member

7; Driven member 8; Coupling roller

9; First moving member 10; Second moving member

11; Connecting piece 12; Coupling Skates

13; Locking operating member 14; Roller

15; Cam curve 16; Stopper

17; Hook member 18; spring

In order to achieve the above object, the present invention is provided with a guide plate on the upper side of the car door frame installed on the upper side of the car so as to be movable along the guide rail and the support plate in the lower end suspended in the state, and the one side, A base plate fixed to the rinsing plate of the cardor, a drive member and a driven member rotatably installed on the upper and lower ends of the base plate, respectively, and a couple means for locking an elevator door on both sides of the drive member and the driven member, respectively. First and second moving members installed in a vertical direction so as to face each other at intervals to allow the ring roller to enter and exit, and an upper and a lower part are hinged by a connecting piece in front of the second moving member, A locking coupling skate interlocking with one end is hinged to the center of the locking coupling skate. An elevator car door comprising a king operating member and a hook member which is hinged to the base plate on the upper side of the locking operating member and fixed and detached to a stopper fixed to the center of the guide rail when the card door is locked and unlocked. A safety lock is provided.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention for achieving the above object will be described in detail.

Figure 3 is a front view of the present invention, Figure 4 is a plan view of Figure 3, Figure 5 is a front view showing the unlocked state of Figure 3, Figure 6 by manual opening and closing during emergency stop of the car according to the invention Front view showing the unlocked state.

According to the present invention, a guide rail (2) is installed on an upper part of a car door frame (1) installed above a car (not shown) of the elevator, and the guide rail (2) is rinsed to move along the guide rail (2). The plate 3 is installed to face each other, and the car door 4 is integrally installed at the lower end of the rinsing plate 3.

In addition, the base plate 5 is fixed to the rinsing plate 3 of the one cardor 4, and the driving member 6 and the driven member 7 are rotatable on the upper and lower ends of the base plate 5, respectively. Installed on both sides of the driving member 6 and the driven member 7 so as to face the coupling roller 8, which is a locking means of the landing door (not shown), at a distance to allow entry and exit of the driving member 6 and the driven member 7, respectively. The first and second moving members 9 and 10 are installed, and the upper and lower parts are hinged by the connecting piece 11 to the front of the second moving member 10 so that the first and second moving members 9 ( Lock coupling coupling 12 is interlocked with 10) is installed.

In addition, one end of the locking operating member 13 is hinged to the center of the locking coupling skate 12, and the other end of the locking operating member 13 to the base plate 5 above the locking operating member 13. A cam curve 15 is formed in contact with the roller 14 installed in the hook member, which is fixed to and detached from the stopper 16 fixed to the center of the guide rail 2 when the card door 4 is locked and unlocked. (17) is hinged.

In addition, a spring 18 is provided between the base plate 5 and the hook member 17 to provide an elastic force during operation of the hook member 17.

As shown in FIG. 3, the present invention configured as described above, when the car 19 of the elevator operates normally, stops at the stop floor after reaching the landing area of the elevator, and a separate driving device for the safety of passengers. Connecting a landing door (not shown) having no gear using a coupling device in a car door and then starting to open the door is driven by a door driving device (not shown) mounted on top of the car. When the drive member 6 is rotated by a predetermined angle in the counterclockwise direction, the cardor safety lock is unlocked.

That is, when the driving member 6 rotates in the counterclockwise direction, the first and second moving members 9 and 10 hinged thereto rotate and rotate the center of the driving member 6 as the rotation center. When the first and second moving members 9 and 10 come into contact with the coupling roller 8 installed in the two landing doors to couple the landing door, the locking coupling skate 12 is locked by the second moving member. Rotate counterclockwise (ie, downward) relative to (10).

At the same time, the locking operation member 13 hinged to the coupling skate 12 has a hook member 17 of the guide rail 2 as the hook member 17 is lifted upward in a counterclockwise direction. By releasing the stopper 16 fixed in the center, the cardor 4 is unlocked and the coupling roller 8 of the boarding door is coupled to the car door 4 and the boarding door. Connect in a solid state together.

After the operation is completed, the door is opened by the car door drive device, and after the passenger gets off safely, the door is closed for the car to start, the door drive keeps moving and rotates the drive member 6 in the clockwise direction. In order to return to the initial locked state as shown in FIG. 3 of the door safety lock, the first and second moving members 9 and 10 are spaced apart from the coupling roller 8 of the landing door 20 by the driving member 6. By the elastic restoring force of the spring 18 connected between the hook member 17 and the base plate 5, the hook member 17 returns to the initial car door lock state, and the car door (by the passenger) 4) will not open.

On the other hand, when the car of the elevator stops due to an emergency or power outage, but stops in the landing area prescribed by law, the car door (4) must be opened manually to escape the passengers inside the car, Figure 6 When the passenger inside the car opens the door 4 with both hands during an emergency escape, the locking coupling skate 12 is locked by the coupling roller 8 installed on the landing door. By rotating counterclockwise relative to 10), the hook member 17 can be released from the stopper 16 fixed to the center of the guide rail 2, thereby unlocking the cardor 4.

However, in case of emergency, when the car stops at a considerable height from the corridor of the building, if the passenger inside the car opens the car door 4 unintentionally, there is a risk that the passenger may fall into the hoistway where the car runs. The cardor 4 must remain locked.

In such an emergency, since there is no coupling roller 8 of the landing door between the first and second moving members 9 and 10 of the car door safety lock, the hook member can be opened even if the car door 4 is opened manually. Since the 17 is engaged with the stopper 16, the door can no longer be opened.

As described above, the present invention can prevent the passengers inside the car from opening the car door by the mechanical car door safety lock when the car of the elevator stops in the middle of the building due to breakdown or power failure. When entering the landing area by moving down, it is possible to prevent abrasion and noise generation by avoiding contact between components, and to improve passenger safety since it is not affected by the external environment. It is a very useful invention with many advantages, such as being easy to replace while maintaining the properties of the ring device.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and is generally defined in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the following claims. Anyone with knowledge of the world will be able to make various changes.

Claims (3)

A rinsing plate which is installed so as to be movably opposed to the guide rail at the upper part of the car door frame along the guide rail and supports the car door in a suspended state at the lower end, and a base plate fixed to the rinsing plate of the one car door And a driving member and a driven member rotatably installed at the upper and lower ends of the base plate, respectively, and a gap between the driving member and the driven member at both sides of the driving member and the driven member to allow the coupling roller, which is a locking means of the landing door, to enter and exit. First and second moving members installed in a vertical direction so as to face each other, upper and lower parts hinged by a connecting piece in front of the second moving member, and locking coupling skates interlocked with the first and second moving members; A locking operating member having one end hinged to a center of the locking coupling skate, and on the locking operating member Coupled to the base hinge plate, and car door locking and unlocking the car door when the safety locking device for an elevator, characterized in that consisting of hook members to be fixed and leaving the stopper fixed to the center of the guide rails. 2. The door lock device of an elevator according to claim 1, wherein the other end of the locking operation member is provided with a roller contacting the cam curve formed on the hook member. 2. The door lock device of an elevator according to claim 1, wherein a spring is provided between the base plate and the hook member to provide an elastic force during operation of the hook member.