KR20020093535A - Apparatus locking car door of elevator - Google Patents

Abstract

PURPOSE: A car door locking device of an elevator is provided to prevent an accident like fall by restricting opening of the car door with constraining the movement of a moving member in moving the elevator. CONSTITUTION: A car door locking apparatus(100) is composed of a couple of three-joint levers(110) having a first lever(111) turned and combined with a base plate(21) by a shaft pin(114), a second lever(112) fastened in a moving vane(23) by a fixing pin(115), and a third lever(113) turned around shaft pins(116,117) and connected to first and second levers; a cam lever(120) turned and combined with first levers by shaft pins(118,119); a cam roller(121) combined with the upper part of the cam lever and turned around a shaft(122) to lift the moving vane up and down by rolling on a cam plate(25) fixed in a car door; a stopper(123) fixed on the base plate to restrict turn of the first lever; a moving fitting member(130) fixed in the rear part of the moving vane; and a fixing fitting member(131) fastened in a car door frame(1) to prevent movement of the moving fitting member in opening the door in leaving the car from the platform. Accidents are prevented by restricting opening of the door in moving the elevator car.

Description

Car Door Locking Device of Elevator {APPARATUS LOCKING CAR DOOR OF ELEVATOR}

The present invention relates to a car door locking device of an elevator, and more particularly, is simply configured around the door coupling device, so that the user can move the car when the interlock roller of the landing door lock device is not located between the fixed vane and the movable vane. When the door is artificially opened, the car door is mechanically constrained so as not to open, and the car door locking device is suitable for preventing a fall accident that may be caused by a passenger opening the car door while the car is out of the platform.

In general, elevators move up and down cars along a hoistway in a high-rise building and are used to transport passengers or cargo. Car doors are installed on the floors to enter and exit passengers or cargo on each floor. Boarding doors are provided respectively. The car door and the boarding door are typically provided with a driving source on the car side to open the boarding door together when the car door is opened. Thus, the door door coupler is a device that connects the boarding door to open when the car door is opened. DOOR COUPLING DEVICE is used.

In addition, if the landing door is opened manually when the car is out of the designated stop position, there is a risk of falling down the hoistway.Therefore, the door is locked so that the landing door cannot be opened arbitrarily, and the opening operation of the car door is stopped while the car is stopped at the designated position. A landing door lock device which is released by the door coupling device only when it is started is essentially installed.

On the other hand, if the car door is opened while the car is out of the platform, the passengers who are in the car door may fall down the platform, so that the car is locked by electrical control so that the car door cannot be opened arbitrarily when the car is out of the platform. The car door locking device (CAC DOOR LOCKING DEVICE) is provided when the car is stopped at the designated position.

A state in which the door coupling device is installed on the car door frame of the car will be briefly described with reference to FIG. 1.

As shown, the car door frame 1 is fixedly attached to the upper end of the car (not shown) of the elevator in a horizontal direction, and a pair of hanger plates 2 (2 ') is mounted on the front of the car door frame 1. Car doors (3) (3 ') hanging on the) is installed to open and close, the hanger plate (2) is provided with a door coupling device (4) to open the landing door together in the platform, the hanger plate On the upper side of (2), the car door locking device 5 is provided so as to be locked during operation and open upon arrival at the platform.

A drive motor 6 is installed at one side of the upper end of the car door frame 1, and the drive motor 6 is decelerated by a drive pulley 7 rotatably fixed to one front side of the car door frame 1. It is connected by a belt (8), the drive pulley (7) is connected to the driven pulley (9) and the drive belt (10) rotatably fixed on the opposite side, hanger plate (2) on the drive belt (10) 2 'is connected, and the rails 12 fixed to the rear of the hanger plate 2, 2' according to the forward and reverse driving of the motor 6 are fixed to the car door frame 1 It is rolled along and is designed to open and close the car doors 3 and 3 'by moving the hanger plates 2 and 2'.

As shown in FIGS. 2A and 2B, the door coupling device 4 includes a fixing vane 22 fixed to one side of the base plate 21 fixed to one car door 3, and a fixing vane thereof. A movable vane 23 disposed at regular intervals from the 22, a pair of levers 24 connected to the lower end of the movable vane 23 with a predetermined height difference, and a rear end of the upper end of the movable vane 23; Coupled to the cam plate 25 fixed to the car door frame 1 and movable to widen the gap so that the locking release roller 27 of the landing door lock device 26, which is a locking means of the landing door, can be entered. Protruding pieces 28 for rotating the vanes 23 and reverse pivot pins 29 fixed to the lower side of the lever 24 to suppress reverse rotation of the lever 24 when the car door 3 is opened. It consists of.

As shown in FIG. 3, the car door locking device 5 fixes the solenoid 31 to the front of the car door frame 1 in a reverse direction, and the pin 31a of the solenoid 31 can be removed. The locking hole 32 is formed at the upper end of the hanger plate 2 so that when the car arrives at the platform, the pin 31a of the solenoid 31 is lifted up and separated from the locking hole 32 by electric control. When the car doors 3 and 3 'are opened and the car leaves the platform, the pin 31a of the solenoid 31 is lowered and inserted into the locking hole 32 so that the passenger artificially enters the car door when the car leaves the platform. (3) (3 ') cannot be opened.

Therefore, in the state in which the car doors 3 and 3 'are closed and the car moves, the protruding pieces 28 are guided by the cam plate 25 and the movable vanes 23 are rotated at an angle to fix the vanes 22. In this state, the lock release roller 13 of the landing door lock device 26, which is the locking means of the landing door, can be passed therebetween, and the car door locking device 5 is a solenoid. The passenger 31 cannot arbitrarily open the car doors 3 and 3 'with the pin 31a of 31 lowered and inserted into the locking hole 32.

When the car moves and stops on one floor of the landing, as shown in FIG. 2A, the gap between the fixed vane 22 and the movable vane 23 is widened as much as possible, so that the landing door lock device is a locking means of the landing door installed in the landing. The lock release roller 13 of 26 enters, where the landing door lock device 26 is in a state in which the latch 41 is locked to the locker 42, and the boarding door is not opened at any time.

In such a state, when the car door locking device 5 is released by control, and the drive motor 6 is operated to open the door, the drive belt 10 is moved by the drive motor 6 and the hanger The car doors 3 and 3 'are opened by moving the plates 2 and 2' in both directions, wherein the fixing vanes 22 are moved and the unlocking roller 13 of the landing door lock device 26 is installed obliquely. The latch 41 is removed from the locker 42 by standing up, the protruding piece 28 moves on the cam plate 25, and the movable vanes 23 are lowered by their own weight, so as to stand up as shown in FIG. 2B. The opposite side of the release roller 13 is supported, and in that state the car doors 3 and 3 'and the landing door are opened simultaneously.

The door closing operation is performed in the reverse order of the door opening operation described above. When the car doors 3 and 3 'and the landing door are completely closed, the landing door is locked again by the landing door lock device 26, and the car door 3 (3 ') is also locked by the car door locking device (5), the door coupling device (4) is in a state in which the car can move.

However, since the conventional car door locking device of the above elevator is operated by electrical control, the car door 3 (3 ') regardless of the position of the car when the control function is lost due to an error of the electrical control or in case of power failure. ) Is open or locked, which is a safety issue.

The main object of the present invention devised in view of the above problems is that the car door is opened only when the car is located in the platform, and when the car is out of the platform, the mechanical door is simply configured to be locked to lock or unlock the car door safely regardless of the power supply. An object of the present invention is to provide a car door locking device for an elevator.

1 is a front view showing a state in which a door coupling device is installed on a car door frame of a conventional elevator.

Figure 2a is a front view showing an operating state before the door coupling device of a conventional elevator unlocks the landing door lock device of the boarding door.

Figure 2b is a front view showing the operating state after the door coupling device of the conventional elevator unlocks the landing door lock device of the boarding door.

Figure 3 is a front view showing a conventional car door locking device.

Figure 4 is a front view showing a state in which the car door locking device according to the present invention installed on the car door frame of the elevator.

5 is a main perspective view of the car door locking device according to the present invention.

6a, 6b, and 6c are front views showing the configuration and operation of the car door locking device according to the present invention;

Fig. 6A is a front view showing the operation when the car door is opened without permission.

6B is a front view showing the operation when the car door is completely closed;

Fig. 6C is a front view showing the operation when the car door is opened.

Explanation of symbols on the main parts of the drawings

1: Car door frame 2,2 ': Hanger plate

3,3 ': Car door 4: Door coupling device

21: base plate 22: fixed vane

23: movable vane 25: cam plate

26: landing door lock device 27: unlocking roller

50: cam roller 100: car door locking device

110: 3 levers 111, 112, 113: 1st, 2nd, 3rd lever

120: cam lever 130: moving locking member

131: fixed locking member

In order to achieve the object of the present invention as described above, the present invention provides a landing door lock device having a door coupling device having a fixed vane and a movable vane installed on a hanger plate of a car door, and locked or released by the door coupling device. In a normal elevator provided with a lock release roller of the landing door, the first lever is rotatably coupled to the base plate fixed to the car door by a shaft pin, and one end is fixed by a fixing pin to the movable vane. A pair of three levers each including a second lever, a third lever rotatably connected to both the first lever and the second lever by an axial pin, and a middle of the pair of upper and lower first levers. The cam lever is rotatably coupled to the middle portion and the lower portion respectively by an axial pin to the portion, and the upper surface of the cam plate fixed to the car door A cam roller rotatably coupled to an upper end of the cam lever axially to move the movable vane, a stopper fixed to the base plate to limit clockwise rotation of the upper first lever, and a rear end of the upper end of the movable vane. And a fixed locking member fixed to an inner side of the car door frame to block the movement of the movable locking member when opening the car door at a position outside the platform to prevent the door from being opened. Provided is a car door locking device for an elevator.

Hereinafter, with reference to the embodiment of the accompanying drawings the car door locking device of the present invention configured as described above in more detail as follows.

4 is a front view showing a state in which the car door locking device of the present invention is installed on the car door frame of an elevator, and FIG. 5 is a perspective view of the car, and FIGS. 6A, 6B, and 6C are front views showing the configuration and operation, and are the same as in the prior art. The same reference numerals will be used to describe the same.

As shown, the car door frame 1 is fixedly attached to the upper end of the car (not shown) of the elevator in a horizontal direction, and a pair of hanger plates 2 (2 ') is mounted on the front of the car door frame 1. Car door (3) (3 ') hanging on the door) is installed to open and close, the hanger plate (2) is provided with a door coupling device (4) to open the landing door together in the platform, the door couple The car door locking device 100 is installed around the ring device 4 so as to be mechanically locked when the car leaves the platform.

A drive motor 6 is installed at one side of the upper end of the car door frame 1, and the drive motor 6 is decelerated by a drive pulley 7 rotatably fixed to a front side of the car door frame 1. It is connected by a belt (8), the drive pulley (7) is connected to the driven pulley (9) and the drive belt (10) rotatably fixed on the opposite side, hanger plate (2) on the drive belt (10) 2 'is connected, and the rails 12 fixed to the rear of the hanger plate 2, 2' according to the forward and reverse driving of the motor 6 are fixed to the car door frame 1 It is rolled along and is designed to open and close the car doors 3 and 3 'by moving the hanger plates 2 and 2'.

The car door locking device 100 includes a first lever 111 having one end rotatably coupled to the base plate 21 fixed to the car door 3 by the shaft pin 114, and the movable vane 23. The second lever 112 having one end fixed to the fixing pin 115 at both ends thereof and rotatably connected to the first lever 111 and the second lever 112 at both ends thereof with the shaft pins 116 and 117, respectively. A pair of three-lever lever 110 consisting of a third lever 113, and the middle portion and the lower portion with shaft pins 118, 119 in the middle portion of the pair of upper and lower first levers 111 Are respectively rotatably coupled to the cam lever 120 and the cam lever 120 so as to lift and move the movable vanes 23 on the cam plate 25 fixed to the car doors 3 and 3 '. Cam roller 121 is rotatably coupled to the upper end of the shaft (122), the stopper 123 is fixed to the base plate 21 to limit the rotation of the upper first lever 111, and The moving locking member 130 fixed to the rear of the upper end of the copper vane 23 and the moving locking member when fixed to the inner side of the car door frame 1 to open the car doors 3 and 3 'at a position outside the platform. The locking member 131 is configured to block the movement of the member 130 and prevent the door 3 from being opened.

An elevator equipped with the car door locking device 100 of the present invention configured as described above has a landing door lock device 26 which is a locking means in a state in which the car doors 3 and 3 'are closed and the car can move. 6B, the movable vane 23 of the door coupling device 4 is rotated by the cam plate 25 coupled to the upper end of the cam lever 120 by the cam plate 25. As shown in FIG. Accordingly, the gap with the fixed vane 22 is widened to the maximum. When the car moves in such a state, the locking release roller 27 of the landing door lock device 26, which is a locking means of the landing doors installed in each landing, is removed. It becomes the state that can pass through.

In such a state, when the passenger opens the car doors 3 and 3 'while the car is running, the cam roller 121 is inclined to the cam plate 25 due to the weight of the movable vanes 23 and the cam lever 120. And the movable vane 23 and the cam lever 120 are lowered together with the cam roller 121, and the passenger continues to open the car door 3 at the upper end of the movable vane 23 as shown in FIG. 6A. Since the installed locking member 130 is caught by the fixed locking member 131 fixed to the inner side of the car door frame 1, the opening of the car doors 3 and 3 'is blocked, so that the car door 3 is moved when the car is moved. The opening of 3 'is blocked.

When the car stops on one of the platforms, the unlocking rollers 27 of the landing doors installed on the platforms are brought in, while the movable vanes 23 and the fixed vanes 22 are fully widened, and the movable vanes 23 and Since the gap between the fixing vanes 22 is sufficiently widened, the landing door lock device 26 is locked to the locker 42 of the latch 41, and the landing door is kept locked.

When the drive motor 6 is operated to open the door in the above state, the drive belt 10 is moved by the drive motor 6, and the hanger plate 2 (connected to the drive belt 10) ( 2 ') moves and opens the car doors 3 and 3', wherein the movable vanes 23 fixed to the hanger plates 2 and 2 'are lowered along the inclined surface of the cam plate 25 again. In this case, as shown in Figure 6c the inner side of the movable vane 23 is supported in contact with one side of the unlocking roller 27, the first lever 111 of the three-level lever 110 is clockwise in the horizontal position The first lever 111 and the third lever 113, the third lever 113, and the second lever 112 are slightly acute at an acute angle while being caught by the stopper 123 fixed to the base plate 21. The three-section Weber 110 is opened in a z-shape, and the clearance vane 22 and the movable vane 23 have a margin slightly larger than the diameter of the unlocking roller 27. This interval is maintained.

In addition, when the gap between the movable vanes 23 and the fixed vanes 22 is narrowed, the unlocking rollers 27 of the landing door lock device 26 interposed therebetween stand upright in an oblique state and at the same time the latch 41 Since the locker 42 is removed from the locked state of the landing door is released.

Therefore, from this time, the hanger plates 2 and 2 'are moved to open the car doors 3 and 3' and simultaneously move the unlocked landing doors through the unlocking roller 27, so that the car door 3 3 'and the landing door are opened at the same time. In this case, as shown in FIG. 6C, the movable locking member 130 provided on the movable vane 23 is fixed to the inner surface of the car door frame 1. The car doors 3 and 3 ′ open naturally without any interference because they move in a high position with a certain height difference from the member 131.

That is, when the movable vane 23 is supported on the side of the unlocking roller 27 in the landing, the moving locking member 130 moves at a height difference from the fixed locking member 131 as shown in FIG. 6C. ), And when the car moves out of the platform artificially to open the car door 3, the movable vane 23 is completely lowered as shown in FIG. 6B, and thus the movable locking member 130 is positioned at the same height as the fixed locking member 131. The movement of the movable locking member 130 is prevented by the fixed locking member 131 to prevent the artificial opening of the car door 3.

In addition, the car doors 3 and 3 'are not completely closed in the device of the running open type, that is, the lift vanes 22 and the movable vanes 23 are narrowed as shown in FIG. 6C. When the car is driven down, the car doors 3 and 3 'are raised and lowered so that the locking releasing roller 27 between the fixed vanes 22 and the movable vanes 23 is pulled out and the movable vanes 23 are removed. 6a further moves downward, thereby maintaining a position where the movable locking member 130 provided at the upper end of the movable vane 23 interferes with the fixed locking member 131 provided in the car door frame 1. Therefore, even if the passenger in the car tries to open the car door 3 (3 ') without permission, it cannot be opened.

Therefore, the car door locking device of the elevator according to the present invention has a state in which the gap between the fixed vanes 22 and the movable vanes 23 is maximized as shown in FIG. 6B as the car doors 3 and 3 'are completely closed. In addition to preventing unauthorized opening even when the vehicle is normally raised or lowered, the car doors 3 and 3 'are not completely closed in the running open device and fixed to the movable vanes 23 as shown in FIG. 6A. Uneven opening is prevented even when the vanes 22 are moved up and down in a narrowed state.

As described above in detail, the car door locking device of the elevator of the present invention connects a movable vane to a base plate fixed to the car door by a pair of three-level levers, and the base plate has a stopper for limiting the rotation of the three-level levers. And connecting a middle portion and a lower portion of the cam lever with a shaft pin to a middle portion of a pair of upper and lower first levers, and rolling the movable vanes by rolling on a cam plate fixed to the car door. The cam lever is rotatably coupled to the upper end of the cam lever, and the rear of the upper end of the movable vane and the inner side of the car door frame block opening of the door by blocking the movement of the moving locking member when the car is opened from the position outside the platform. By installing a moving locking member and a fixed locking member to prevent the passenger from driving the car door artificially when the car leaves the platform By opening the movement of the movable member installed in the movable vane is prevented by the fixed locking member to prevent the artificial door opening, it is possible to prevent the fall accident caused by the opening of the car door during the movement of the car.

Claims (1)

A normal elevator is provided with a door coupling device provided with a fixed vane and a movable vane on the hanger plate of the car door, and a unlocking roller of the landing door lock device installed on the landing door, which is locked or released by the door coupling device. A first lever rotatably coupled to a base plate fixed to the car door by an axial pin, a second lever of which one end is fixed to the movable vane by a fixing pin, and the first lever and the second lever And a pair of three-section levers each having a third lever rotatably connected to both ends by shaft pins, and a middle pin and a lower end rotatably coupled to the middle portions of the pair of upper and lower first levers by shaft pins, respectively. And a cam lever which is rolled on the cam plate fixed to the car door to lift and move the movable vane. A cam roller rotatably coupled to the roller, a stopper fixed to the base plate to limit the clockwise rotation of the upper first lever, a movable locking member fixed behind the upper end of the movable vane, and a car door frame. Car door locking device of the elevator characterized in that it comprises a fixed locking member fixed to the side to prevent the opening of the door by blocking the movement of the moving locking member when opening the car door from the position off the platform.