KR20210059992A - Car door locking device of an elevator - Google Patents

Abstract

The present invention relates to a car door locking device for an elevator, which is provided to facilitate opening/closing and locking of an elevator door by a simple configuration to enable stable operation. According to the present invention, the car door locking device for an elevator is provided on sides of a pair of car doors (11, 12) sliding left and right on an elevator car (10) to interlock a floor door locker (26) including driven rollers (27, 28) provided on each floor door of a building, thereby integrally opening/closing the car doors (11, 12) and the door of each floor. The car door locking device for an elevator comprises: first and second catch sticks (32,33) vertically disposed in parallel on one car door (11) to allow the driven rollers (27, 28) to pass therethrough or grip the driven rollers (27, 28) from both sides in an elevating process; an inner stick (34) rotatably coupled to the first catch stick (32) side to extend in parallel between the first catch stick (32) and the second catch stick (33) and, in a grip operation of the catch sticks (32, 33), coming in contact with the driven rollers (27, 28) in advance to come in close contact with the first catch stick (32); a locking lever (35) rotatably coupled to the inner stick (34) and operated to lock or unlock the car doors (11, 12); and a hanger means (50) provided with a locking hole (51) coupled to the other car door (12) side to correspond to the locking lever (35).

Description

Car door locking device of an elevator

The present invention relates to a car door locking device of an elevator, and more particularly, to a car door locking device of an elevator that is provided to facilitate opening and closing and locking the door of the elevator by a simple configuration to enable stable operation.

In general, elevators are installed in buildings with a certain height or higher to move up and down conveniently, and elevators are installed on vertical passages formed in buildings so that users can board.

Such an elevator car is provided with a car door so as to be opened and closed by interlocking with a floor-specific door provided on each floor of the building, and a door device for opening and closing the car door is provided on one side. Explained as follows.

As shown in Figure 1, the conventional elevator door device is coupled to the car panel 13 and the door panels 14, 15 forming a certain area on the upper side of the elevator car 10, the elevator car 10 A drive unit 16 for interlocking opening and closing of the car doors 11 and 12 of the building and the door for each floor of the building, and an opening/closing unit 20 driven by the drive unit 16 are provided.

Here, the driving unit 16 is provided with a guide belt 18 connected to be driven to the driving motor 17 and extending in the opening and closing direction of the car doors 11 and 12, and the opening/closing unit 20 A pair of catch sticks 21 and 22 coupled to the driving unit 16 and moving along the guide belt 18 are provided in a state of being coupled to each other by a spring 23 and a rotation link 24.

In this configuration, the catch stick (21, 22) is a sliding block (26) coupled to the guide belt (18) is coupled by another pivot link (25), the catch stick (21, 22) is up and down It is provided in the form of a bar that extends to and is arranged side by side at regular intervals, and the door is opened and closed by passing through or gripping the driven roller of the floor door locker provided on the floor-by-floor door side by the lifting operation of the elevator car 10. will be.

However, in the prior art, due to the case that a separate locking device capable of maintaining the closed state of the car doors 11 and 12 is not provided during the lifting operation of the elevator, the car door 11, It is possible to open 12) forcibly, so there is a safety risk.

In addition, in some cases, a locking device is provided to improve the above-described problems, but a conventional locking device includes a clasp on each of the car doors 11 and 12, and the car doors 11 and 12 ) Is provided with a latch corresponding to the clasp at the closed position of the clasp.This is a complicated additional configuration for opening and closing the clasp and the clasp, which may cause trouble in manufacturing.In addition, the cause of the failure due to the complex configuration Not only are there many, but also problems in operation reliability or maintenance may occur accordingly.

Korean Patent Publication No. 10-1261447 (2013. 04. 30) Korean Patent Application Publication No. 10-2012-0029702 (2012. 03. 27)

The present invention is to solve the above-described problems, the present invention is provided to facilitate the opening and closing of the door of the elevator by a simple configuration, stable operation is possible, and at the same time, the door is kept in a locked state during the lifting operation of the elevator. It is to provide an elevator car door locking device that is designed to prevent safety risks in advance.

According to a feature of the present invention, a floor including driven rollers 27 and 28 provided on a pair of car doors 11 and 12 that slide left and right on the elevator car 10 and provided on each floor door of the building In the car door locking device of an elevator configured to integrally open and close the car door (11, 12) and the floor-specific door by communicating the door locker (26);

First and second catchsticks arranged vertically on one car door 11 so as to pass the driven rollers 27 and 28 or grip the driven rollers 27 and 28 from both sides during the elevating process (32,33) and;

It is rotatably coupled to the first catch stick 32 side so as to extend in parallel between the first catch stick 32 and the second catch stick 33, and when the grip of the catch sticks 32 and 33 is operated An inner stick 34 which is in contact with the driven rollers 27 and 28 and is in close contact with the first catch stick 32;

A locking lever (35) that is rotatably coupled to the inner stick (34) and operated to lock or unlock the car doors (11, 12);

There is provided a car door locking device for an elevator, characterized in that it is coupled to the side of the other car door 12 and configured with a hanger means 50 in which a locking hole 51 is formed so as to correspond to the locking lever 35.

According to another feature of the present invention, the first catch stick 32 is fixedly installed at a predetermined position, and the second catch stick 33 is coupled by the rotation links 37 and 38, There is provided a car door locking device of an elevator, characterized in that it is operated so as to be spaced adjustable with respect to the stick (32).

According to another feature of the present invention, the second catch stick 33 is provided with a guide roller 44 on the rear side of the upper end;

A guide rail 45 corresponding to the guide roller 44 is formed on one side of the elevator car 10, and the guide rail 45 is the position of the top dead center and the bottom dead center of the second catch stick 33 The upper rail part 46 and the lower rail part 47 extending horizontally to correspond to are formed, and the inclined rail part 48 extending at a predetermined angle between the upper rail part 46 and the lower rail part 47 There is provided a car door locking device of the elevator, characterized in that formed.

As described above, according to the present invention, as the locking lever 35 capable of maintaining a locked state is provided on the catch sticks 32 and 33 mounted on the car doors 11 and 12 to interlock the floor-specific doors, There is an advantage in that it is possible to prevent safety risks such as a fall by preventing the door from being arbitrarily opened from the inside while the car doors 11 and 12 are stopped due to a failure of the elevator car 10 or the like.

In addition, as the locking lever 35 is coupled to be operated by the inner stick 34 provided between the catch sticks 32 and 33, not only the configuration of the device itself is very compact, but also the operation of the device according to the configuration is Since it is simple and clear, it provides convenience in manufacturing or maintenance, and at the same time has the advantage of increasing operational reliability.

In addition, the present invention is provided to operate the second catch stick 33 by separate rotation links 37 and 38 in a state in which the first catch stick 32 is fixedly installed, so that the first catch stick 32 and the Compared to the operating structure in which the second catch sticks 33 are rotatably connected to each other, the operating structure in which the other catch sticks 33 are rotated while one catch stick 32 is fixedly installed can improve operational stability. There is an advantage.

1 is a front view showing an example of the prior art
Figure 2 is a front view showing an installation state according to an embodiment of the present invention
3 is a front view showing a configuration according to an embodiment of the present invention
4 is a front view showing an operating state according to an embodiment of the present invention
5 is a front view showing another operating state according to an embodiment of the present invention
6 is a front view showing another operating state according to an embodiment of the present invention

Objects, features, and advantages of the present invention described above will become more apparent through the following detailed description. Hereinafter, description will be made based on the accompanying drawings.

2 to 6 show a preferred embodiment of the present invention. As shown in FIG. 2, the car door locking device 30 of the present invention stably locks and maintains the car doors 11 and 12 of the elevator car 10 to prevent safety hazards such as a fall, and It is provided to open and close the car doors 11 and 12 by interlocking the floor-specific doors provided on each floor, and the car doors 11 and 12 on the car panel 13 located on the upper side of the elevator car 10 ), a drive unit for sliding and opening and closing a pair of car doors 11 and 12 on the side of the car panel 13 and the door panel 14 and 15, and the door panels 14 and 15 are combined. (16) is coupled, the drive unit 16 is a conventional one provided to slide open and close the car doors 11 and 12 left and right by connecting the guide belt 18 on the drive motor 17.

On the other hand, the car door (11, 12) side is provided with a car door locking device (30) that is to be opened or closed by maintaining a locked state or interlocking a floor-by-floor door, the car door locking device (30) is one car door (11) It is composed of a locking unit 31 provided above and a hanger means 50 provided on another car door 12 corresponding to the locking unit 31. In such a car door locking device 30, the locking unit 31 includes a pair of catch sticks 32 and 33 capable of interlocking with the floor-specific doors and a locking lever configured to be caught by the hanger means 50 ( 35) and the like, and the detailed configuration and operation state including the same will be described with reference to FIGS. 3 to 6 as follows.

As shown in Fig. 3, the locking unit 31 is coupled to the door panel 14 of the car doors 11 and 12 in a state integrally coupled to the plate-shaped mounting bracket 36, which is A bar-shaped first catch stick 32 and a second catch stick 33 arranged vertically and side by side on the one car door 11 are provided, and the first catch stick 32 and the second catch It is positioned so that the inner stick 34 extends side by side between the sticks 33.

Here, the first catch stick 32 is fixedly installed on one side of the mounting bracket 36, and the second catch stick 33 is rotatably coupled by a plurality of rotation links 37 and 38, It is installed so as to be spaced with respect to the first catch stick 32, and the inner stick 34 is rotatably coupled by a plurality of link bodies 39 and 40 connected to the upper and lower ends of the first catch stick 32 As a result, the inner stick 34 is coupled in a state close to the first catch stick 32 and is operated to be spaced apart or in close contact with each other at a predetermined interval.

A locking means 41 including a locking lever 35 extending toward another car door 12 is rotatably coupled to the upper end of the inner stick 34, and the locking means 41 One link body 40 and the locking lever 35 can be integrally manufactured by using the spaced state of the inner stick 34 at the lower end of the first catch stick 32 and the inner stick 34. An elastic member 42 for elastically supporting the device is coupled, and a stopper 43 is provided on the locking means 41, corresponding to the elastic member 42, downward to one side of the locking lever 35. .

In addition, the other car door 12 side is provided with a hanger means 50 corresponding to the locking lever 35, the hanger means 50 is formed with a locking hole 51 to catch the locking lever 35 It is mounted on the door panel 15 of the other car door 12, and when the locking lever 35 is caught on the hanger means 50, the car doors 11 and 12 are kept in a locked state. By preventing the door from being opened arbitrarily, it is possible to prevent a risk such as a fall in advance, and the operating state of the present invention will be described with reference to FIGS. 4 to 6 as follows.

As shown in Figure 4, the present invention unlocks the floor door locker 26 provided in the floor-specific door during the elevating process of the elevator car 10 to open and close the car doors 11 and 12 and the floor-specific door interlockingly. , At this time, the general floor door locker 26 is operated to maintain or release the locked state of the floor door by a pair of driven rollers 27 and 28 and one driven roller 28 that are alternately arranged vertically on a vertical line. Consisting of including a locking hook 29, the driven rollers 27 and 28 pass through the first catch stick 32 and the second catch stick 33 or It is positioned between the catch sticks 32 and 33 when opening and closing.

Here, the present invention is upward by the elastic member 42 in a state in which the link bodies 39 and 40 for coupling the first catch stick 32 and the inner stick 34 to each other are inclined downward at a predetermined angle. As a result of coupling to operate the elastic force, the locking lever 35 coupled to the upper end of the inner stick 34 is a force acting downward at all times, and thereby, when the car doors 11 and 12 are arbitrarily opened The locking lever 35 is not easily separated from the locking hole 51 so that the locked state can be firmly maintained.

In addition, as shown in Fig. 5, the car doors 11 and 12 of the elevator car 10 slide left and right according to a normal signal in the open position, at this time, the inner stick 34 is the car door 11, 12 ) Is brought into contact with the driven roller 28 of the floor door locker 26 in advance, and is brought into close contact with the first catch stick 32 side by the pressing force. According to this operation, the locking lever 35 connected to the upper end of the inner stick 34 is separated from the locking hole 51 to release the locking, and at the same time, the locking hook 29 coupled to the driven roller 28 Is raised to unlock the door for each floor to be opened integrally with the car doors 11 and 12.

Meanwhile, the second catch stick 33 is rotated toward the first catch stick 32 during the opening of the car doors 11 and 12 to grip the other side of the driven rollers 27 and 28. Explained as follows.

5 and 6, a guide roller 44 is mounted on the upper rear surface of the second catch stick 33, and guides the movement of the guide roller 44 at a predetermined position on the car panel 13 The guide rail 45 is formed, and the guide rail 45 includes a top rail part 46 and a bottom rail part that extend horizontally to correspond to the positions of the top dead center and the bottom dead center of the second catch stick 33. 47) is formed, and an inclined rail part 48 extending at a certain angle is formed between the upper rail part 46 and the lower rail part 47.

As shown in FIG. 5, when the car doors 11 and 12 are opened, the guide roller 44 of the second catch stick 33 is positioned on the upper rail part 46 to be in contact with the first catch stick 32. The gap is kept wide, but in the process of the opening operation of the car doors 11 and 12 as shown in FIG. 6, the guide roller 44 is lowered along the inclined rail part 48, and thus the second catch is caused by its own weight. The stick 33 is moved downward so that the rotation links 37 and 38 are gradually moved in the horizontal direction to narrow the distance with the first catch stick 32.

The operation of gripping both sides of the driven rollers 27 and 28 is completed by the operation of the second catch stick 33, thereby interlocking opening of the car doors 11 and 12 and the floor-by-floor door, on the contrary, the car door 11 In the closing operation of ,12), after the second catch stick 33 is preferentially separated from the driven rollers 27 and 28 at the position of the guide rail 45, the pressing force by the driven rollers 27 and 28 is reduced. In the process of being released, the lock of the floor door locker 26 of each floor door and the inner stick 34 are separated from the first catch stick 32. Locking is done.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those who have the knowledge of.

10: elevator 11, 12: car door
26: floor door locker 27, 28: driven roller
29: locking hook 30: car door locking device
32: first catch stick 33: second catch stick
34: inner stick 35: locking lever
37,38: rotation link 39,40: link body
43: guide roller 45: guide rail
46: upper rail part 47: lower rail part
48: inclined rail part 50: hanger means
51: locking hole

Claims (3)

A floor door locker 26 including driven rollers 27 and 28 provided on a pair of car doors 11 and 12 that slide left and right on the elevator car 10 and provided on each floor door of the building is communicated. In the car door locking device of an elevator configured to integrally open and close the car door (11, 12) and the floor-specific door according to the method;
First and second catchsticks arranged vertically on one car door 11 so as to pass the driven rollers 27 and 28 or grip the driven rollers 27 and 28 from both sides during the elevating process (32,33) and;
It is rotatably coupled to the first catch stick 32 side so as to extend in parallel between the first catch stick 32 and the second catch stick 33, and when the grip of the catch sticks 32 and 33 is operated An inner stick 34 which is in contact with the driven rollers 27 and 28 and is in close contact with the first catch stick 32;
A locking lever (35) rotatably coupled to the inner stick (34) and operated to lock or unlock the car doors (11, 12);
A car door locking device for an elevator, characterized in that comprising a hanger means (50) coupled to the other car door (12) side and having a locking hole (51) formed therein so as to correspond to the locking lever (35).
The method of claim 1, wherein the first catch stick (32) is fixedly installed at a predetermined position, and the second catch stick (33) is coupled by a rotation link (37, 38) and the first catch stick ( A car door locking device of an elevator, characterized in that it is operated so as to be able to adjust the gap for 32).
According to claim 1 or 2, The second catch stick (33) is provided with a guide roller (44) on the rear side of the upper end;
A guide rail 45 corresponding to the guide roller 44 is formed on one side of the elevator car 10, and the guide rail 45 is the position of the top dead center and the bottom dead center of the second catch stick 33 The upper rail part 46 and the lower rail part 47 extending horizontally to correspond to are formed, and the inclined rail part 48 extending at a predetermined angle between the upper rail part 46 and the lower rail part 47 Car door locking device of an elevator, characterized in that formed.

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