KR102302696B1 - Interlock release device for lift door elevator - Google Patents

Abstract

The present invention relates to an interlock release device for a lift door elevator. A car door of a car that opens and closes upward and downward and the interlock release device for the elevator provided in a landing door of a platform to release door locking on arrival of the car comprise: a landing door frame mounted in a side of the platform; a fisher plate attached to a bracket mounted to the landing door frame and disposed separately from and parallel to the landing door frame; and a locking unit formed inside of a case attached to a car door frame attached to a side of the car and operating to release the car door locking when contacting the fisher plate.

Description

Interlock release device for lift door elevator

The present invention relates to an interlock release device for a lift door elevator, and more particularly, to an interlock release device for a lift door elevator that unlocks the door lock so that a passenger can escape when the car stops at an abnormal position. will be.

In general, the elevator door device is divided into the landing side and the car side, and in the case of a central opening door or a one-way opening door applied exclusively for people, the clutch attached to the door device on the car side connects the opening and closing of the landing door device on the floor to drive it. However, in the case of a lift door applied for cargo, it is driven separately on the boarding side due to structural difficulties (there was a difficulty in realizing the structure of the clutch, etc. because the movement direction of the door coincided with the movement direction of the elevator (up and down)) It is equipped with a device (motor, reduction device, and other related switches) to operate independently on each floor.

Figure 1 is a front schematic view of the car door device of the conventional elevator viewed from the car side, Figure 2 is a front schematic view of the car door device of the conventional elevator viewed from the eungjang side.

As shown in FIGS. 1 and 2 , the driving device of the elevator door device 10 and the car door device 20 sets the weight corresponding to the weight of the doors 12 and 22 with ropes or chains 14 and 24 ), by compensating through the counterweights 16 and 26 having the same weight on the opposite side, only the friction of the device and the inertia of the doors 12 and 22 are moved.

In addition, an interlock switch is provided in the elevator door device 10 and the car door device 20 so that the car is positioned on a predetermined floor and the door rises and opens while the car door device 20 is opened.

The door interlock switch is installed with a switch and a lock in the hanger case of the platform door so that the car cannot get on and off when all the landing doors are not closed, and the door cannot be opened when it is not stopped on the floor. has been

The door interlock switch is an important device along with the emergency stop device for the safety of the elevator.

In addition, the interlock switch with emergency release device is unlocked with a special key so that the door can be opened from the platform side. Also, if you touch the interlock switch when opening the car door by hand, you cannot open the platform door by removing the interlock by hand. it is made to be

The interlock device of the platform door is a door lock that prevents the door from being opened unless the emergency key is used on the floor where the car does not stop, and a door switch that blocks the safety circuit when the door is not closed to prevent the car from moving It is composed of (Door Switch).

On the other hand, the lift door, which is mainly applied to cargo elevators, has a disadvantage in that it is difficult for passengers to escape and it is difficult to escape easily due to the load on the door if the door is not unlocked when the car is stopped at an abnormal position.

In relation to this, Korean Patent Registration No. 10-0760617 has been applied for "elevating door electronic interlock switch".

Briefly looking at the prior patents, one end is hinged in a rectangular case, the fixing bracket is formed with a hook, and a locking part composed of a driving means for rotating the fixing bracket to operate the hook in and out; a rotating part having a roller adjacent to the hook installed at a tip end thereof, a refraction bracket hinged within the case, and an elastic means for applying an elastic restoring force when the refraction bracket is rotated; It was made to include a signal input unit installed within the rotation radius of the refraction bracket and formed with a first contact point on one surface, and a sensing unit configured with a mount that rotates together with the refraction bracket and has a second contact point corresponding to the first contact point.

However, since the prior patent detects the rise of the elevator door and maintains the unlocked state, the configuration in which the rescuer can directly manipulate the opening and closing of the car door from the outside is insufficient.

The present invention has been devised to solve the problems of the prior art, and when the car reaches the unlocking section, the locked state of the car door can be released, so that the door is manually opened at an abnormal position, for example, when the car is stopped between floors An object of the present invention is to provide an interlock release device for a lift door type elevator from which passengers can escape.

The above object of the present invention is an interlock release device for an elevator that is provided in a car door of a car that opens and closes up and down and a landing door of a platform so that the door lock is released when the car arrives, which is mounted on the side of the platform elevating door frame; a bracket mounted on the elevating door frame, and a fisher plate attached to the bracket and spaced apart from the elevating door frame and disposed in parallel; A lift comprising a car door frame attached to the side of the car, a case attached to the car door frame, and a locking unit formed inside the case and operated to unlock the car door when it comes into contact with the fisher plate It can be achieved by the interlock release device of the door type elevator.

The locking unit may include: an arm having a long hole formed on a side surface of the case, a hook hinged to the inside of the case, and a hook protruding and protruding through the long hole; a roller formed in the middle of the arm and exposed to the outside of the case; and an elastic part that exerts a pushing force on the arm so that the hook always protrudes to the outside of the case through the long hole.

The fischer plate is a flat plate with a length of 40-50 cm, and inclined bent portions are formed at both ends, and the bent portions are formed to be inclined toward the elevating door frame so that the roller is in contact with the external inclined surface.

It is mounted on the side of the car door, and a manual lock having a pin that is operated to retract and retract; characterized in that it comprises a.

The manual locking part is characterized in that it includes a spring coupled to the outside of the pin, and a locking piece formed at an end of the pin and in contact with the hook.

Including; manual operation means for controlling the retracting and retracting operation of the pin of the manual locking unit;

The manual operation means is characterized in that it consists of a wire having one end connected to the pin of the manual locking unit, a wheel on which the wire is wound, and a handle formed on the other end of the wire.

According to the present invention, when the car reaches the unlocking section, the locked state of the car door can be unlocked, so that the passenger can escape by manually opening the door when the car is stopped in an abnormal position, for example, between floors, thereby improving safety. can be

1 is a front schematic view of the elevator door device of a conventional elevator viewed from the car side,
Figure 2 is a front schematic view of the car door device of the conventional elevator viewed from the station,
3a and 3b are perspective views showing the interlock release device of the lift door type elevator according to the present invention;
Figure 4 is an exploded perspective view showing the interlock release device of the lift door type elevator according to the present invention;
5 is a front view sequentially showing the car door release operation after entering the car of the interlock release device of the lift door type elevator according to the present invention;
6 is a perspective view showing a 'manual locking unit' of an interlock release device of an elevator with an ascending door according to the present invention;
7 is a front view in which the 'manual operating means' and the 'manual locking unit' of the interlock release device of the lift door type elevator according to the present invention are assembled;
8 is a perspective view showing the locking or unlocking operation of the 'manual lock unit' by the operation of the 'manual operation means' of the interlock release device of the lift door type elevator according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

The terms to be described below are defined in consideration of the functions in the present invention, and it is specified that they should be interpreted as concepts consistent with the technical idea of the present invention and meanings commonly or commonly recognized in the art.

In addition, when it is determined that a detailed description of a well-known function or configuration related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

Here, the accompanying drawings are illustrated by exaggerating or simplifying a part for convenience and clarity of explanation and understanding of the configuration and operation of the technology, and each component does not exactly match the actual size.

The present invention is an interlock release device for a lift door type elevator provided in a car door (not shown) of a car that opens and closes up and down and a landing door (not shown) of a platform so that the door lock is released when the car arrives.

An interlock release device for a lift door type elevator according to the present invention,

a landing door frame 100 mounted on the side of the platform;

a bracket 120 mounted on the elevating door frame 100, and a fisher plate 140 attached to the bracket 120 and spaced apart from the elevating door frame 100 and disposed in parallel;

When the car door frame 200 attached to the side of the car, the case 320 attached to the car door frame 200, and the case 320 are formed inside the case 320 and come into contact with the fisher plate 140 a locking unit 300 operated to unlock the car door;

includes

The elevating door frame 100 and the car door frame 200 are arranged in parallel, and the car door frame 200 is mounted on the outside of the car, and is made of 'C'-shaped steel.

The elevating door frame 100 is also made of 'C'-shaped steel.

The locking part 300 includes a case 320 that is formed in a substantially box shape and to which a lid 322 is coupled.

A long hole 324 is formed on the side surface of the case 320 . A hook 341 to be described later may be drawn out or retracted through the long hole 324 .

An arm 340 hinged with a hinge shaft 301 inside the case 320 and having a hook 341 protruding and protruding through a long hole 324 is provided.

The shaft 352 is coupled through the lid 322 of the case 320 so that the lower part of the shaft 352 is coupled to a part of the arm 340 , and the roller 350 is coupled to the top of the shaft 352 . do.

Preferably, the roller 350 is mounted to protrude outward than the side surface of the case 320 . In this way, the chalet portion of the roller 350 protrudes from the outer surface of the case 320 so that it can come into contact with the fischer plate 140, and as the roller 350 moves in the lateral direction, the arm 340 rotates and the hook 341. It is introduced into the interior of the case 320 through the long hole 324. This is the unlocked state.

and an elastic part 360 for returning the rotated arm 340 back to its original state.

The elastic part 360 causes the hook 341 to always protrude to the outside of the case 320 through the long hole 324 by exerting a pushing force on the arm 340 .

As the hook 341 protrudes to the outside in this way, the car door can be locked.

The fisher plate 140 is to be in contact with the roller 350 to serve as an unlocking key so that the locking state of the locking unit 300 can be released.

The fischer plate 140 is a flat plate having a length of 40-50 cm, and inclined bent portions 142 are formed at both ends.

The bent portion 142 is formed to be inclined toward the elevating door frame 100 so that the roller 350 is in contact with the external inclined surface.

The operation of the present invention constructed in this way will be described.

As shown in FIG. 5, when the car (not shown) is stopped at an abnormal position, for example, when the car door frame 200 is placed between the floors, 20 cm up and down from the floor is an unlocking section, so this section When the car and the car door frame 200 enter, the unlocking state of the locking unit 300 starts (refer to (a) and (b) of FIG. 5).

That is, when the roller 350 of the locking part 300 comes into contact with the fischer plate 140, the arm 340 is rotated, and the hook 341 is drawn into the long hole 324, so that the jamming is released (FIG. 5). (c) see).

Meanwhile, when the car and the car door frame 200 dl move, the roller 350 and the fischer plate 140 are spaced apart, so that the arm 340 is returned by the action of the elastic part 360 and the roller 350 is also returned. .

On the other hand, as shown in Figures 6, 7, and 8, according to another embodiment, it is mounted on the side of the car door, and includes a manual locking part 400 having a pin 420 that is operated in and out.

The manual locking part 400 includes a spring 440 coupled to the outside of the pin 420 , and a locking piece 450 formed at the end of the pin 420 and in contact with the hook 341 . .

Manual operation means (600) for controlling the retracting operation of the pin (420) of the manual lock (400); will include.

The manual operation means 600 includes a wire 620 having one end connected to the pin 420 of the manual locking unit 400 , a wheel 640 on which the wire 620 is wound, and a wire 620 . It is composed of a handle 660 formed at the other end.

When the handle 660 is pulled, the wheel 640 is rotated and the wire 620 is pulled at the same time, and the pin 420 connected to the wire 620 is pulled and moved in one direction, so the engaging piece 450 is released. can be

Since the release state is a state in which the locking piece 450 is spaced apart from the hook 341 of the locking unit 300 , manual opening of the door may be possible.

The present invention is not limited by the above-described embodiments and the accompanying drawings, and various modifications and applications not illustrated within the scope of the present invention are possible, as well as substitution of components and other equivalent embodiments. Since it can be changed, it should be construed as being included within the scope of the present invention for modifications and applications of the features of the present invention.

100: frame 120: bracket
140: fisher plate 200: car door frame
320: case 300: locking part
322 ; Lid 352: Axes
350: roller 341: hook
324: long hole 340: arm
360: elastic part 350: roller
400: manual lock 420: pin
440: spring 450: catch piece
600: manual operation means 620: wire
640: wheel 660: handle

Claims (5)

An interlock release device for an elevator that is provided in a car door of a car that opens and closes up and down and a landing door of a platform so that the door lock is released when the car arrives,
a landing door frame mounted on the side of the platform;
a bracket mounted on the elevating door frame, and a fisher plate attached to the bracket and spaced apart from the elevating door frame and arranged in parallel;
a car door frame attached to the side of the car, a case attached to the car door frame, and a locking unit formed inside the case and operated to unlock the car door when it comes into contact with the fisher plate;
including,
It is mounted on the side of the car door, and includes a manual locking unit having a pin that is operated to move in and out;
The manual lock
An interlock release device for a lift door type elevator, comprising: a spring coupled to the outside of the pin; An interlock release device for a lift door type elevator, characterized in that it is. The method of claim 1,
The locking unit,
A long hole is formed on the side of the case,
an arm hinged to the inside of the case and having a hook protruding and protruding through the long hole;
a roller formed in the middle of the arm and exposed to the outside of the case;
an elastic part that exerts a pushing force on the arm so that the hook always protrudes to the outside of the case through the long hole;
Interlock release device of the lift door type elevator, characterized in that it comprises a. The method of claim 1,
The fischer plate is a flat plate with a length of 40-50 cm, and inclined bent portions are formed at both ends,
The interlock release device of a lift door type elevator, characterized in that the bent part is formed to be inclined toward the elevating door frame so that the roller is in contact with the external inclined surface. delete The method of claim 1,
Including; manual operation means for controlling the retracting and retracting operation of the pin of the manual locking unit;
The manual operation means
An interlock release device for a lift door elevator, characterized in that it includes a wire having one end connected to the pin of the manual lock, a wheel on which the wire is wound, and a handle formed on the other end of the wire.

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