KR19980020171U - Locking device for elevator door - Google Patents

Abstract

A safety device of an elevator door, which is enhanced by preventing an elevator door of another floor from being opened by an artificial force when the elevator is in operation or at a stop, the latch 120 fastened to the driven door 9 and the The locking member 13 detachably attached to the latch and resilient to the driving door 9 'and the sensing member 14 for controlling the operation of the car 1 by simultaneously detecting that the locking member and the latch are detached. Elevator door lock device characterized in that consisting of.

Description

Elevator door lock

The present invention relates to an elevator, and more particularly, to a lock of the elevator door for enhanced safety by preventing the entrance door of another floor is opened by artificial force when the elevator is running or stopped.

In general, elevators are being used as a means to move to the floor that the user wants to go according to the recent trend of higher floors in buildings, and as the utilization rate increases rapidly, the speed is increased, the size is high, and the luxury is high. Efforts are being made to enhance safety.

1 and 2 show the main structure of the cage door and the landing door of a general elevator, the car (1) for accommodating a person or baggage, the cage door (2) is installed on the front, this cage door The upper portion of the drive means for opening and closing the cage is installed.

The drive means includes a drive motor (3) for generating power, a belt pulley (4) that receives power from the drive motor and rotates forward and reverse, and a link for converting the rotational motion of the belt pulley into a linear motion ( 5) and the arm 6 vertically installed on both sides of the link, and the left and right reciprocating arms, and the upper and upper reciprocating motions of the caged guides. It consists of a roller frame (7) for opening and closing, and a main frame (8) provided with a guide rail (81) for guiding the roller frame. In the cage (2), a gripper (21) having a planar shape is formed on one side. It is fixed to the door in the longitudinal direction (see Fig. 1).

On the other hand, on the boarding side, as shown in Figure 2, the roller frame 10 is installed on the top of the boarding door 9, the roller frame is a locking member that is a safety device to prevent the artificial opening when the car (1) running ( 13 is rotatably installed around the hinge shaft 131, the hook-shaped latch 12 for detaching the locking member is installed on the main frame 11, the locking member 13 At the bottom of the), a return spring 134 is provided to provide a return force.

The locking member 13 is provided with a contact bracket 133, the control panel for controlling the operation of the car (1) in accordance with the connection and short-circuit with the contact bracket when the locking member is attached to the detent (12) ( A sensing member 14 connected to the main frame 11 is installed in the main frame 11.

Accordingly, as shown in FIG. 3A, when the car 1 is in operation, the locking member 13 and the latch 12 are engaged while the car 1 is in operation, so that the landing door 9 of another floor may be arbitrarily or artificially operated. When the car 1 arrives at the intended platform, the car door in the state in which the roller 132 installed on the locking member 13 is inserted into the gripper 21 fixed to the car door 2. The cardor 2 is opened by the side driving device, and the locking member 13 is centered on the hinge shaft 131 by the force of the gripper 21 fixed to the cardor pulling the roller 132 outward. As it rotates away from the latch 12, the locked state is released.

Meanwhile, as the locking member 13 is spaced from the latch 21 as described above, the contact bracket 133 fixed to the upper portion of the locking member is also spaced apart from the sensing member 14 so that the current is short-circuited to maintain the stop state. do.

As described above, when the cage door 2 is opened and the drive door 9 ′ of the cage door 9 is forcibly opened in connection with the cage door 2, the driven door 9 of the cage door 9 is driven by the drive rope 16. By opening at the same time, the cage door 2 and the landing door 9 are opened at the same time (see Fig. 3b).

When the driving rope 16 connected to the landing door 9 is broken or the connection portion between the landing door and the driving rope 16 is disconnected, the driving door 9 'of the landing door side is locked with the locking member 13 and the latch. (12) is engaged, so that even if artificial force is applied from the outside, the lock state can be maintained, whereas the driven door (9) has no separate locking device when the driving rope (16) is broken, so the restraining force is released from the outside. In case of attempting to open by artificial force, there was a risk that passengers could fall into the hoistway as the follower door (9) of the landing door (9) was easily opened, so the locking member (13) was lifted (9) in order to enhance safety. Although both doors are installed at the same time, it is possible if both doors are operated at the same time, but the installation work considering these adjustments was difficult and the manufacturing cost due to the additional installation of parts There was a non-economic disadvantage to win.

The present invention was conceived in view of the above-described conventional problems, the locking member fastened to the driven door, the locking member installed on the drive door side to be attached to and detached from the locking door, and simultaneously detects that the locking member and the latch are detached from the car When the locking member and the latch are engaged, the driven door is subordinate to the driving door, so the driven door is not opened unless the driving door is opened, so even if the driving rope is broken, it is artificial It is possible to provide a locking device of an elevator lift door that improves safety by preventing it from being opened by force.

1 is a main configuration diagram of a cage guard of a general elevator

2 is a main configuration diagram of the boarding door

Figure 3a is an enlarged front view showing the main portion showing the state the door is closed

3A is a front view showing the open state

Figure 4 is an enlarged front view showing the main part showing a state in which the landing door of the embodiment of the present invention is closed

5 is a front view showing the open state;

* Description of the symbols for the main parts of the drawings *

13: locking member 120: latch

14: sensing member 121, 133: contact bracket

A description with reference to FIG. 4 is as follows.

The elevating door 9 installed in the platform is composed of a drive door 9 'which receives power from the cage door 2 and a driven door 9 which is interlocked by the opening and closing operation of the drive door. The roller frame 10 is provided in the upper part of the driven door 9 ', 9, respectively, and this roller frame is installed so that it may linearly move left and right on the guide rail 111 provided in the main frame 11, respectively.

On the other hand, the upper surface of the driven door is fixed to the latch 120 of the front shape in the landing door is N-shaped, the roller frame 10 installed on the upper portion of the drive door (9 ') corresponding to the latch 120 A locking member 13 having a shape is installed to be detachably attached to the latch, and a lower portion of the locking member 13 is elastically installed by a return spring 134 that provides a return force of the locking member.

In addition, contact brackets 121 and 133 are respectively attached to the latch 120 and the locking member 13 to detect the connection and short-circuit with the contact bracket when attaching and detaching the latch and the locking member, respectively, to thereby operate the car 1. The main frame 11 is installed in the sensing member 14 for controlling.

Therefore, the lock member 13 and the latch 120 are engaged with each other when the vehicle 1 is in operation before reaching the target floor of the car 1, thereby preventing the boarding door 9 from being artificially opened, and the car 1 being placed on the target floor. When it arrives and stops, the roller 132 of the locking member 13 is inserted into the gripper 21 fixed to the cardor 2, and when the cardor 2 is opened in this state, the gripper 21 is opened. The locking member 13 is rotated clockwise in the drawing about the hinge shaft 131 by a force acting in the opening direction of the roller 132 so as to be spaced apart from the latch 120 so that the locking state is released.

At this time, since the latch 120 and the locking member 13 are moved together with the old and driven doors 9 'and 9, the respective contact brackets 133 and 121 are short-circuited from the sensing member 14 so that the car 1 ) Is stopped, and as the gripper 21 pulls the roller 132 inward to move to the next target floor, it rotates counterclockwise on the drawing, and the landing door 9 is closed. Since the contact brackets 121 and 133 are connected to the sensing member 14 at the same time as the 120 and the locking member 13 are engaged, the sensing member confirms the closing of the door door 9 and the operation of the car 1. To be implemented. (See FIGS. 4 and 5).

The driven door 9 is constrained by the drive door 9 'even when the drive rope 16 is disconnected or the connection part with the drive rope connected to the drive door 9' or driven door 9 is disconnected. Prevent driven doors from artificially opening.

This improved safety by preventing people waiting on the other floor from falling onto the hoistway.

Claims (1)

A locking member fixed to a driven door, a locking member detachably attached to the latch and rotatably mounted on the driving door side, and a sensing member controlling the operation of the car by simultaneously detecting that the locking member and the locking member are detached. Locking device for elevator doors.