KR970004191Y1 - Device for preventing the passenger from being-fallen - Google Patents

Abstract

None.

Description

Elevator fall prevention device

1 is a longitudinal sectional view showing the overall structure of a general elevator

2 is a cross-sectional view showing the overall structure of a general elevator

Figure 3 is a front view showing the structure of the landing door open / closed structure of a general elevator

Figure 4 is a cross-sectional view showing the overall structure of an elevator having a device of the present invention

Figure 5 is a perspective view of the main part showing the device of the present invention

Figure 6 is a front view showing the landing door opening / closing structure of the elevator having a device of the present invention

7 is a circuit diagram of an elevator having the device of the present invention

* Explanation of symbols for main parts of the drawings

1: wall 2: lifting degree

4: machine room 7: elevator

9: guide rail 10: platform door

12: door rail 13: frame

14 Bracket 22 Door switch

26: moving plate 27: emergency switch

28: support plate 29: buzzer

30 lamp 31 detector

32: recessed groove 33: shielding plate

34: switching switch

The present invention relates to a passenger fall prevention device of an elevator, and more particularly, when the elevator is not stopped on the floor to be boarded by the passengers to open the landing door for boarding the elevator to ring the emergency alarm The accident was prevented in advance.

In general, elevators are elevators installed in high-rise buildings (buildings and apartments) and carry passengers or cargo to a desired floor. The elevator 1 and the entrance 3 have a wall 1 and an inside of the hoistway 2. An elevator 7 which is installed and lifted and lowered as the hoisting rope 6 is wound or unwinded by the driving force of the motor 5 in the machine room 4, and is fixed to the end of the hoisting rope 6 (7) a balance weight (8) to balance the rise and fall, and a pair of guide rails (9) that are fixed in the hoistway (2) and do not lift and lower the hoist (7), and A pair of landing doors 10 installed on the wall 1 so as to be opened and closed to selectively open or close the entrance and exit 3, and installed on the platform 7 to interlock with each landing door 10. It consists of a pair of landing doors 11 which do.

Also, a frame 13 having a door rail 12 integrated therein is fixed to the wall 1 so that the pair of landing doors 10 can be opened or closed, and the frame shows the power generated in the machine room 4. A pair of pulleys 14 are installed to be rotated by the power transmission means that are not transmitted. Each of the pulleys is integrally wound with a belt 15, and a door rail 12 is disposed at the upper part of each landing door 10. A bracket 17 is hingedly coupled to a pair of rollers 16 so as to be guided therein, and each bracket is connected to the belt 15 by a fixing piece 18.

And the locker 19 is fixed to the door rail 12 so that the platform door 10 is always locked when the platform 7 is not stopped on the floor, it is fixed to each platform door 10 The hook piece 20 is hingedly rotatably coupled to one of the brackets 17 so as to be selectively locked to the locker 19, and the hook piece 20 is interlocked with the hoist door 10 to the hook piece. ) And the pin pin 21 is fixed to lock the hook piece 20 and the rocker 19 while releasing the locking of the locker 19 and the hook piece 20 on the door rail 12. And the door switch 22 is installed so as to be ON only when the locker 19 is unlocked and transmit power generated in the machine room 4 to the pulley 14 through the power transmission means.

On the other hand, the hook piece 20 and the locker 19 are eccentric as a key to the landing door 10 in order to be able to manually unlock the hook piece 20 and the locker 19 in the locked state. The cam 23 is provided so that rotation is possible, and the protrusion 24 is formed in the hook piece 20 so that it may move upwards as it contacts the cam 23 rotated.

Therefore, when the passenger (rider) selects the call button of the elevator on the floor to be boarded, the hoisting rope 6 is wound because the controller (not shown) in the machine room 4 recognizes this and drives the motor 5. Upon release, the hoist 7 installed in the hoistway 2 ascends or descends along the guide rails 9 and stops at the floor on which the passenger wishes to board.

In this way, when the elevator 7 arrives on the floor to be boarded, the elevator door 11 installed in the elevator door is opened by a door door opening means (not shown). Since the mill pin 21 interlocked with the hoist door 11 is moved to the left in the drawing, the hook piece 20 hinged to the bracket 17 is pushed in the clockwise direction about the hinge axis. As a result, the locking of the hook piece 20 and the locker 19 provided on the door rail 12 is released, and the door switch 22 which is turned off by the hook piece 20 is turned on. ) do.

On the other hand, when the door switch 22 is turned on, power generated in the machine room 4 is transmitted to the pulley 14 installed in the frame 13 through the power transmission means, so that the belt 15 wound around the pulley and the pulley rotates. As a result, the pair of landing doors 10 are opened while being guided to the door rails 12 so that the doorway 3 integrated with the wall 1 is opened.

In the above, when the pulley 14 and the belt 15 rotate, the landing door 10 is guided to the door rail 12 to be opened so that the pair of rollers 16 are guided to the door rail 12 on the upper part of the landing door. Brackets (17) hinged are fixed and each bracket is connected to the belt (15) by a fixing piece (18).

When the passenger of the hoist 7 reaches the floor to be boarded by the operation as described above, and the landing door 10 and the hoist door 11 are opened, the hoist is opened through the doorway 3 in which the passenger is opened. (7) After boarding the floor selection button provided in the inside of the elevator, the door and the open door (10) and the door (11) is opened in the reverse order when the opening is closed again. Since the motor 5 in the machine room 4 is driven by a certain number of drives (the number of drives to be able to move to the floor selected by the passenger), the hoisting rope 6 is wound or unwound so that the hoist 7 is guide rail. Guided by (9), the passenger will stop exactly at the floor selected.

The balance weight 8 is fixed to the end of the hoisting rope 6 in order to maintain the balance when the hoist 7 moves.

On the other hand, when the elevator is in a suspended state and wants to start the elevator again, the manager manually opens the lift door 10 and the lift door 11, and then enters the lift 7 to lift the lift. Should select the movable button provided in the car, in this case, if the administrator puts the key into the key groove 25 installed in the landing door 10, the cam 23 installed in the landing door 10 is counterclockwise in the drawing By pushing the protrusions 24 formed on the rotating piece 20 while rotating, the locking of the hook piece 20 and the locker 19 is released, thereby allowing the administrator to open the landing door 10 by hand. .

Since the landing door 10 is interlocked with the landing door 11, the landing door 11 may be opened as the landing door 10 is opened.

However, the general elevator as described above, if the switch for opening the landing door is malfunctioned by electrical short or contact wear, the elevator may operate even when the landing door is open, Problems often occurred where passengers or children playing in front of the platform crashed onto the platform.

In addition, even if the switch for opening the landing door is normal, in order to start the elevator again in the state of stopping the elevator as necessary, the manager goes to the stationary floor of the platform, opens the landing door as a key, and then lifts the landing door. In this case, when a manager misunderstands the stop floor of a car, the car is known to be on the floor, and the vehicle accidentally enters the car, causing problems.

The present invention was devised to solve the above problems, and when the elevator door is opened for the passenger or manager to board the elevator, if the elevator is not stopped on the floor, the passenger is quickly notified by the fall of the lift. Its purpose is to prevent safety accidents.

According to the present invention for achieving the above object, a moving plate fixed to one bracket of a pair of brackets fixed to a landing door of each floor and moving together with the brackets, and the door rail are fixed to an integrated frame, the movement Emergency switch selectively turned on and off as the plate moves, buzzer fixed to the upper part of the frame to generate an alarm sound only when the emergency switch is turned on, and fixed to the guide rail in the hoistway and fixed to the hoistway An elevator passenger fall prevention device is provided, which is configured as a control means for controlling the operation of the elevator so that the passenger can be notified when the landing door is opened without reaching the floor selected by the passenger.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 4 to 7 of the accompanying drawings.

Figure 4 is a cross-sectional view showing the overall structure of the elevator having the device of the present invention, Figure 5 is a perspective view of the main part showing the device of the present invention and Figure 6 is a front view showing the landing door opening / closing structure of the elevator having the device of the present invention 7 is a circuit configuration diagram of an elevator having a device of the present invention, the present invention is to fix the moving plate 26 to one bracket of a pair of brackets 17 fixed to the landing door 10 of each floor constituting the elevator When the bracket 17 is moved, the movable plate 26 is also moved together, and the emergency switch 27 is fixed to the frame 13 in which the door rail 12 is integrated so that the emergency switch is movable plate 26. By selectively turning on and off by the upper part of the frame and the buzzer 29 is fixed to the support plate 28 to support the buzzer generates an alarm sound only when the emergency switch 17 is on In the wall 1 in which the hoistway 2 is integrated, a plurality of lamps 30 are fixed to be positioned at each floor so that the lamps light up at the same time as the alarm sound of the buzzer 29. The guide rail 9 for guiding the elevating of the car 7 and the elevating vehicle is provided with control means such that the control means controls the operation of the emergency switch 27.

The control means is a plurality of detectors (31) 31 which are fixed to each floor of the guide rail (9) to send and receive signals, the recess groove 32 formed in each of the detectors, and the hoist (7) The detector 31 is fixed to an upper side of the outer surface of the detector 31 to be fitted into the recess groove 32 only when the passenger car reaches the floor selected by the passenger, and blocks the signal of the detector 31. When the signal is blocked, the emergency switch 27 is not operated, and when the signal of the detector 31 is not blocked, the emergency switch 27 is operated.

On the other hand, when the inspector checks the elevator or repairs, it is necessary to open the landing door 10 even when the elevator 7 is not stopped on the floor. At this time, the buzzer 29 rings or the lamp ( When 30) is turned on, it gives an unpleasant feeling or creates a sense of crisis to the people around it, and if necessary, the switch 34 into the machine room 4 to release the ringing function of the buzzer 29 or the lighting function of the lamp 30. Install it.

Referring to the operation, effects of the present invention configured as described above are as follows.

When the elevator is operated while the passengers are in the elevator 7, the landing door 10 is opened in a state in which the elevator 7 does not stop on the floor selected by the passenger due to a malfunction of the door switch 22. Alternatively, when the platform 7 is not stopped on the floor, a platform such as a manager opens the platform door 10 at the platform using a key, and the platform door 11 interlocked with the platform door opens. Since the brackets 17 fixed to the pair of landing doors 10 and the movable plate 26 fixed to one of the brackets are horizontally moved in the state shown by the solid line of FIG. 6, the movable plate and the frame 13 are moved. The emergency switch 27 fixed to the short circuit is shorted.

On the other hand, in a state in which the elevator 7 is not stopped on the floor selected by the passenger or the manager to open the landing door 10, the shielding plate 33 fixed to the upper side of the outside of the vehicle is guide rails. Since the detector 31 continuously transmits and receives a signal because the detector 31 is not inserted into the recess groove 32 of the detector 31 fixed to (9), the emergency switch 27 is operable and the emergency switch is described above. As described in the description, the short circuit with the moving plate 26 causes the buzzer 29 to be supported by the support plate 28 to be turned on from the OFF state to the ON state. As the alarm sound is generated and the lamp 30 at the selected floor position fixed inside the main body 1 blinks, the passenger or manager judges this as a danger signal, and thus opens the landing door 10 and the landing door 11. It does not pass through the doorway 3 which is opened by The accident that crashed into the shaft (2) is in accordance prevented.

Here, the operation of the emergency switch 17 when the elevator door 10 is opened in a state in which the elevator 7 is correctly arrived at the floor on which the passenger or boarder wants to open the platform door 10 is opened. It is necessary to stop the unnecessary buzzer 29 to prevent the ringing of the lamp 30, which is prevented, which is fixed to the guide rail 9, the shielding plate 33 is fixed to the upper side of the elevator 7 It is possible to insert the groove into the recess 32 of the detector 31 to block the signal of the detector 31.

In addition, when the elevator 7 to open the landing door to repair the elevator in the state that does not stop exactly on the floor to open the landing door 10, the switch 34 installed in the machine room (4) in advance ) To be off, this is to prevent this because the buzzer 29 is ringing or the lamp 30 is turned on when the landing door 10 is opened for maintenance work, so people around them feel uncomfortable or in danger.

The reason why the changeover switch 34 is installed in the machine room 4 is to prevent the general public from easily handling it.

Therefore, the present invention prevents safety accidents caused by the falling down of the platform because the platform door is promptly informed when the platform door is opened in the state in which the platform is not stopped exactly on the floor where the passenger wants to board or the manager wants to open the landing door. It can work.

Claims (4)

The movable plate 26 and the door rail 12 are fixed to the frame 13 which is fixed to one of the pair of brackets 17 fixed to the landing doors of each floor and moves together with the brackets. Emergency switch 27 that is selectively turned on and off in accordance with the movement of the moving plate 26, and the buzzer is fixed to the upper portion of the frame 13 to generate an alarm sound only when the emergency switch 27 is ON (ON) (29) and control means fixed to the guide rail (9) in the hoistway (2) integrated with the main body (1) and fixed to the hoist (7) to control the operation of the emergency switch (27). Preventing falling of passengers in an elevator, characterized by promptly notifying passengers when the landing door 10 is opened without the vehicle 7 reaching the floor selected by the passenger. 2. The control means according to claim 1, wherein the control means comprises a number of detectors 31 fixed to each floor of the guide rail 9 to send and receive signals, a recess 32 formed in each of the detectors, and a suspension gap 7; The detector 31 is fixed to the upper side of the outer surface and is configured as a shielding plate 33 to block the signal of the detector 31 while being fitted into the recess groove 32 only when the passenger car reaches the floor selected by the passenger correctly. ), The emergency switch 27 is not operated when the signal of the detector is blocked, and the passenger fall prevention device of the elevator that the emergency switch 27 is operated when the signal of the detector 31 is not blocked. The method according to claim 1, wherein when the buzzer 29 rings according to the operation of the emergency switch 27 by fixing the plurality of lamps 30 to be located at each floor within the main body 1 in which the hoistway 2 is integrated. Elevator fall prevention device of the elevator so that the lamp of the floor portion selected by the passenger of each of the lamps 30 blink together The method according to claim 1, wherein the switch door 34 is installed inside the machine room 4 to open the landing door 10 as needed without the stop 7 being accurately stopped on the floor on which the passenger wants to board. When the switching switch 34 when the OFF (OFF), the passenger fall prevention device of the elevator so that the ringing of the buzzer 29 and the lamp 30 is released