KR100945598B1 - Safe door apparatus for an elevater - Google Patents

Abstract

PURPOSE: A door lock system of an elevator is provided to reduce noise generates when opening and closing a door by mounting a self powered coupling device with a self powered push roller. CONSTITUTION: A door lock system of an elevator comprises a self powered coupling device(100A), and a lifting box opening device. The self powered coupling device comprises a hook connection plate(130), a hook bar(120), a hinge pin(121) and a first push roller(125). The hook connection plate is installed on a platform frame(103). The hook bar is hooked on the tip of the hook connection plate. The lifting box opening device comprises a bottom plate and a toggle driving plate. The bottom plate is combined on a door fixed plate. The toggle driving plate is fixed to the side of a movement waist board.

Description

Elevator door opening and closing device {Safe door apparatus for an elevater}

The present invention is a hinge pin installed on the rear end of the hook bar to be hooked in the hook coupling plate installed in the door frame of the landing, and the first push installed in the lower rear end so as to receive the hook release force in an eccentric state around the hinge pin A non-powered coupling device including a lever, and

An opening device for the lift;

The opening device is a moving plate that acts as a spring and the bottom plate and spring in the hoist,

A vertical heating plate which eccentrically drives the first push lever of the non-powered coupling device on the surface of the moving plate, and a bottom plate which functions to maintain the opening and closing positions of the moving plate by partially overlapping a permanent magnet having a magnetic field above the spring repulsion force; Toggle drive plate installed on one side of the moving plate,

The present invention relates to an elevator door opening and closing device including a hot plate fixing plate installed vertically spaced through four pillars on a bottom plate and operating to open and close the door.

Conventional elevator entrances generally consist of jambs, lifting doors, landing doors and the like. The relationship between the landing door and the landing door is that when the landing stops at the landing, the landing door unlocks the landing door and combines with the landing door.

It is integrated with the opening and closing operation of the elevating door, and the elevating door is opened and closed.

An example of a conventional elevator door apparatus composed of a landing door and a lifting door will be described below with reference to the drawings. After that, unless otherwise stated, only the doors of the lift door and the landing door will be described. 1 and 2 show the back surface of the lift door 4 and the lift door 1 when the lift door 4 and the lift door 1 are closed, respectively. 1 and 2, each landing door 1 is locked by the lock lever (release lever) 3 of the locking device 2 while it is closed. When the elevating door 4 is coupled to the elevating door 1, respectively, the retirement cam 6 on the elevating door side installed at the end of the elevating frame 5 is operated to release the locking of the elevating door 1.

The release roller 9 is provided in the edge part of the header case 7 of the landing door 1 corresponding to the position of the curved section 8 of the retiring cam 6. The header case 7 is provided with the shaft 9B. The release roller 9 is attached to the end of the shaft 9B via the lever 9A,

Release levers 3 are attached to both positions of the shaft 9B. When the curved section 8 of the retiring cam 6 presses the release roller 9, the shaft 9B rotates, and the lock lever 3 releases the lock of the lifting door 1. 3 shows that the landing door 1 is closed and the hoistway travels.

4 shows the locked state of the retirement cam 6 and the lifting door 1 at the time, and FIG. 4 shows the release state of the retiring cam 6 and the lifting door 1 when the lifting door 1 is opened.

The locking mechanism of the landing door 1 has the following structure. When the landing door 1 is closed and the hoist is running, the retiring cam 6 at the top of the hoisting frame (elevator) excites the solenoid (electromagnet) 10 and lifts the rod 11 to lift the curved section 8. Five

It is in a state of crushing.

As the lift stops, the solenoid 10 of the retiring cam 6 is released by the command of a written control device (not shown), so that the spring 12A pushes the rod 11 downward and the link 12B The curved section 8 is pushed forward by the rotation of. Then this bay

The grain stem 8 pushes the release roller 9 of the landing door 1 as shown in FIG. 4, the shaft 9B rotates counterclockwise through the lever 9A, and the movement of the landing door 1 is performed. Lock lever (3), which locks the lock, rotates counterclockwise,

Be removed. While the landing door 1 is open, the curved section 8 continues to push the release roller 9.

When a command is given to close the door from a control device (not shown), the solenoid 10 is excited and the rod 11 is lifted so that the curved section 8 retracts as shown in FIG. 3. Since the clockwise rotation force of FIG. 3 is always applied by the return spring (not shown), the lock lever 9 is rotated to lock the landing door 1 as shown in FIG.

As shown in FIGS. 1 and 2, the lifting door 1 is coupled to the lifting door 4 by the coupling device 12 of the lifting door 1 and the coupling device 13 of the lifting door 4. That is, when the elevating gate drive device 14 installed on the elevating frame is operated, the lever 15 rotates counterclockwise so that the pin 17A on the elevating frame 5 is pointed through the rod 16 as a point. The link 17 swings, and the cam 18 integrated with the small link 18A rotates around the support point. The lever 19 of the coupling device 13 then rotates counterclockwise (when the coupling device 13 is located on the right side of FIG. 1), so that the coupling roller 20 approaches the fixing roller 21. Thus, these rollers 20, 21 sandwich the engaging plate 12 to engage the lifting door 4 and the lifting door (1).

In the conventional elevator door apparatus configured as described above, the panel of the landing door and the panel of the lifting door are driven near the center of gravity, thereby achieving stable high-speed opening and closing, and increasing the operating efficiency of the elevator.

There are the following problems.

Since the retirement cam is provided at the end of the lift frame, the release roller is also provided at the end of the lift door, so that the width direction of the lift path is increased.

Since the retiring cam is installed at the end of the elevating frame, there is a risk that the retiring cam has to be worked on the elevating box when installing or inspecting it.

Likewise, when the release roller of the landing door is installed on each floor, there is a danger because the body has to stand out from the lift or the footrest.

While the door is closed, the solenoid must be excited to pull up the curvature, increasing power consumption.

The header case of the landing door has a complicated structure, which raises the cost.

When releasing the locked landing door, a loud noise is generated by the collision of the curved road and the release roller.

Since the motor of the elevating door driving device is installed in a state where it is protruded on the elevating box, the work space around it is narrow. In addition, when the link lever rotates, there is a fear that the hand or foot is caught in the link lever.

The present invention is to solve this problem, an object of the present invention is to open the device having a hot plate on one of the door fixing plate of the elevator to support the door by interlocking the left and right doors of the elevator with a fan belt, push the power to the corresponding platform It is intended to provide an elevator door opening and closing device that is noiseless and easy to install by installing a non-powered coupling device having a roller.

Another object of the present invention is to make a hot plate to form a circle, when opening the door in the closed state of the door by moving the moving plate in a toggle state with a spring force of the moment by narrowing the spacing of the hot plate to release the coupling force of the non-motor coupling device It is to provide an elevator door opening and closing device to be opened by a non-powered state, and when the closing is completed in the state of opening the door to maintain the closed state by the force of the permanent magnet even in the compression of the spring.

To this end, the present invention is to install a variable coupling device to the elevator door forming the elevator, the landing door to install a non-powered coupling device interlocking with the variable coupling device to open and close the door in a simple structure, the spring force on the door of the platform Install a non-powered coupling device that is coupled by a rope receiving the receiving, and the door of the elevator to the door is opened by a fan belt, but one is fixed, and the other is a variable coupling device to form a separation heat plate spaced apart from the fixed hot plate And the acceleration and deceleration by recognizing the operation of the variable coupling device in the switch unit,

When the door is opened, the hot plate of the opening device is opened by disengaging the non-coupling device, and when the door is closed, the moving plate supporting the hot plate at the point where the hot plate increases and at the same time the door closes is extended to the permanent magnet. It provides an elevator door opening and closing device to maintain a spring compression state to have a deceleration margin naturally to achieve safe driving.

That is, the present invention is an elevator door for opening and closing the elevator door by the power of the elevating motor by combining the door frame of the landing and the non-powered coupling device for opening and closing the door installed on the landing frame and the corresponding opening device having a hot plate on the outer surface of the lifting box. The device relates to a hinge pin installed at the rear end of a hook bar to be hooked by a hook coupling plate installed on a landing frame, and a first push installed at a lower rear end to receive a hook release force in an eccentric state about the hinge pin. A non-powered coupling device including a lever, and

An opening device for the lift;

The opening device is installed on the upper frame of the hoist and the door fixing plate, and forms a moving waist plate with a small width in the middle, and has a toggle groove, and a moving plate that acts as a spring on the bottom plate with a toggle groove,

A vertical hot plate coupled to the moving plate surface at a predetermined distance to eccentrically drive the eccentric push lever of the non-powered coupling device;

The elevator door is coupled to the door fixing plate which fixes the elevator door from above, and some of the permanent magnets having magnetic fields above spring repulsion force are overlapped in the toggle groove counterpart, and the permanent magnets function to maintain the open and closed positions of the moving plate. The bottom plate located on the bottom of the plate,

A toggle driving plate fixed to the side of the movable waist plate and having a shock absorbing plate to reduce impact upon contact with a stop plate installed on the upper frame when the lift door is closed;

The fan is installed so as to be vertically spaced through an integrated column on the four corners of the bottom plate, and fixed to the vertical heat plate at a predetermined distance from the vertical heat plate, and operated at the top to open and close the door by power from the elevating motor. An elevator door opening and closing device comprising a hot plate fixing plate having a fan belt fixing plate integrally coupled to a belt is provided.

As described above, the present invention allows the door to be opened and closed by using a single motor, and the locking and unlocking of the landing is also possible without power, thereby reducing the manufacturing cost and simplifying the configuration.

In addition, the present invention has a non-power coupling device in the platform, and the non-power coupling device allows the eccentric first push roller to be eccentrically rotated about the hinge axis to release the locking, and the hot plate of one of the opening devices of the lifting device for lifting the eccentric driving force is locked. By releasing, the configuration and action of the release are simplified, contributing to the cost reduction.

In addition, in the opening device, the moving plate moves together with the moving hot plate, and a permanent magnet is installed in the moving plate to achieve a fixed state in the closed state of the door, and in the open state, safety and smooth operation by a toggle action by the permanent magnet. Make it possible.

In addition, since the toggle driving plate of the moving plate is extended by the spring force and the permanent magnet is also maintained as the permanent magnet, it can be fixed and closed when using one permanent magnet. Simple.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Figure 5a is a drawing of the landing door and the non-power coupling device installed in the rear door state of the present invention in the closed state, Figure 5b shows the landing door and the non-power coupling device installed in the rear door state in the rear door state of the present invention 5C is a perspective view of the non-powered coupling device of FIG. 5A, FIG. 6A is a view showing a case in which a door is closed in a back state other than the inside of a lift door of the present invention, and FIG. 6B is an opening preventing device in case of power failure. 6C is a cross-sectional view taken along line AA of FIG. 6B, FIG. 7 is a view showing a case in which the door of FIG. 6 is opened, FIG. 8A is a main view showing a moving plate operating state of a closed state of the present invention, and FIG. 8B is The main part showing the moving plate operating state of the open state of the present invention, Figure 8c is a main view showing the intermediate state between the closed and the open of the present invention, Figure 9 is an exploded perspective view of the opening device of the present invention, Figure 10 is a view of the present invention Heat Vertical section of the apparatus, Figure 11 is a horizontal sectional view showing a principle of non-motorized opening device with the coupling device of the present invention, 12 is a control circuit provided in the present invention, Figure 13 is a control circuit that is installed in the elevator of the invention,

The elevator door opening and closing device for opening and closing the landing door and the landing door together, the landing door 100 as shown in Figures 5a, 5b and 5c is a non-powered coupling device (100A) door frame plate 110 of the upper part of the door 100 And the landing frame 103;

The non-powered coupling device 100A fluidly binds the hinge pin 121 and the eccentric first push roller 125 and interlocks with the hinge pin 121 on the first push roller 125 and centers the upper frame of the landing frame 103. A hook bar 120 having a hook protrusion 122 that is hooked to a hook coupling plate 130 fixed to the upper side, and supporting the landing door 100 at an upper end with a predetermined width with the first push roller 125. It includes a fixing bar fixing plate 140 fixed to the door frame plate 110.

The fixing bar fixing plate 140 is fixed to the landing door frame plate 110. Hook hole 131 of the hook coupling plate 130 is installed on the door frame plate 110 is formed with a hook protrusion 122 at the tip of the hook bar 120 is fixed to the fixing bar fixing plate 140 by the hinge pin (121) Hook to the hook, the spring 123 is installed on the hook bar 120 and the corresponding fixed bar fixing plate 140 to provide a spring force when the hook is hooked. In addition, the lower center portion of the hook bar 120 is formed with a fixing groove 124 to function to stop on the fixing bar 141 installed on the fixing bar fixing plate 140 when the hook bar is detached from the hook bar 120. Reference numeral 111 is a roller for guiding the return rope 112 in Figure 5a, the upper end of the return rope 112 to the hook coupling plate 130, the lower end of the tension spring 113 installed below the landing door 100 It is configured to pull the return rope. 105 is a closed loop wire rope that fixes the door frame plate 110 and provides the opening and closing power of the landing door 100. Of course the wire rope 105 is guided along the roller 106. The door frame plate 110 is provided with a roller 114 to be guided in an open state as shown in FIG. 5B in a closed state as shown in FIG. 5A along a horizontal rail 107.

The vertically moving elevating ship is installed in the elevating opening device 300 shown in FIG. 6A to be coupled to the non-powered coupling device 100A of the landing.

The opening device 300 is settled in correspondence with both sides of the first push roller 125 shown in FIG. 6 to FIG. 5A to cooperate with opening and closing of the landing door 100 and one vertical heating plate 311 is fixed and the other vertical heating plate. The 310 includes a set of vertical hot plates 310 and 311 so that the distance is variable to the fixed vertical hot plates 311.

That is, the opening device 300 is installed on the upper frame 280 and the door fixing plate 201 of the lift as shown in Figures 6 to 10 and forms a small moving waist plate 322 in the middle and toggle grooves 323 And a moving plate 320 that acts as a spring 329 on the bottom plate 330, and

A vertical heating plate 310 which is eccentrically driven to the eccentric first push lever 125 of the non-powered coupling device 100A installed at the platform by being spaced apart at a predetermined distance from the moving plate 320, and

Coupled to the door fixing plate 201 to secure the lift door 200 from above, and installed a permanent magnet 332 having a magnetic field of more than a spring 329 resilience force in the toggle groove 323 corresponding part, overlapping, permanent magnet ( 332 is a function to maintain the open and closed position of the moving plate 320, the bottom plate 330 is located on the bottom of the mobile waist plate 322,

Toggle driving plate having a shock absorbing plate 342 is fixed to the side of the movable waist plate 322 to reduce the impact upon contact with the stop plate 360 installed on the upper frame 280 when the elevating door 200 is closed 340,

It is installed to be vertically spaced through the pillars (351,351,354,353) integrally on the four corners on the bottom plate 330, and fixed to the vertical hot plate 311 at a predetermined distance from the vertical hot plate 310, the elevating at the top It is configured to include a hot plate fixing plate 350 having a fan belt fixing plate 356 integrally coupled to the fan belt 281 that is operated to open and close the door by the power from the motor 271.

In the hot plate fixing plate 350 between each of the pillars 351 and 354 and the pillars 352 and 353, the movable waist plate 322 forms a movable waist plate 355 having a movable space in linkage with the vertical heat plate 310. Cushion layers 324 and 325 for absorbing impact with the pillars 351 and 352 and 354 and 353 are added to the movable waist plates 322 corresponding to the (351, 352) and 354 and 353.

The movable plate 320 may include a movable waist plate 322 reciprocating between the pillars 351 and 352 and the pillars 354 and 353.

Upper and lower head plates 326 and 328 extending longer than the movable waist plate 322 above and below the movable waist plate 322,

It is configured to include a moving roller 321 which is provided on the upper and lower head plates 326 and 328 to slide along the outer surface rails 335 of the pillars 351 and 352 and the pillars 354 and 353.

The upper head plate 326 and the vertical heating plate 310 are fixed with screws 310b through coupling columns 327,

The vertical hot plate 311 is fixed to the hot plate fixing plate 350 with a screw 311b,

Each of the vertical hot plates 310 and 311 is vertical, and the bottom of the vertical hot plates 310 and 311 integrally forms a vertical hot plate body 310a and 311a forming a horizontal bottom such that the screws 310b and 311b are coupled to each other.

The upper frame 280 has a wire roller 286 for supporting the wire 287 on the closed loop at both ends;

A door fixing plate 201 supporting each of the elevating doors 200 of the elevating box from above;

It further comprises a wire fixture 209 for coupling the door fixing plate 201,

The lower end side of the wire fixing tool 209 is coupled to one door fixing plate 201, and the upper end side of the wire fixing tool 209 is coupled to the other door fixing plate 201, so that each door fixing plate is moved according to the movement of the wire 287. The landing door 200 coupled to the 201 is configured to open and close at the same time.

The upper frame 280 and the door fixing plate 201 is provided with an opening preventing device in case of power failure including a strong magnet 288 at a position immediately before the door fixing plate 201 is closed,

The magnetic force of the strong magnet 288 is configured to achieve more than the strength that can block the automatic opening by the spring 329 of the opening device 300 at the time of power failure.

The power failure prevention device is a strong magnet 288 installed in the upper frame 280, as shown in Figure 6a to 6c,

A magnet fixing stopper 289-1 installed on the side of the strong magnet 288 to prevent movement of the strong magnet 288, and

It includes a magnet fixing cam (289) installed on the door fixing plate 201 of the position generating the attraction force by the magnetic force of the strong magnet 288 to maintain the closed state even in the event of power failure when the lift door 200 is closed. . The slit 289-2 is formed in the door fixing plate 201 corresponding to the strong magnet 288 of the magnet fixing cam 289 so that magnetic force is generated only by the grinding wheel fixing cam 289 when the lift door 200 is closed. Good to do.

Fig. 12 is a control circuit diagram installed in the boarding box of the present invention, each boarding point keyboard 371 which collectively controls the boarding point and the boarding point of each floor of the elevator, and the boarding box indicating door openings and desired floors for each boarding point. 372 and the main control unit 370 for recognizing the keyboard operation of the elevating keyboard 372 and controlling an elevator up / down driving motor (not shown); It is configured to include a lift controller 373 notifying the controller 370.

FIG. 13 is a block diagram of the elevator control unit 373. An elevator keyboard 372 which indicates a desired floor of the elevator and instructs the door to be opened and closed, and a sensor unit 375 for recognizing when the elevator is opened and closed. ), A motor driver 376 for driving a motor 271 that provides power to open and close the lift door 200 of the lift box, and a safety switch 377 for instructing the main control unit 370 to close the door. In addition, the elevator board 372 and the sensor unit 375 recognizes the state of the motor drive unit 376 and the main control unit 370, and comprises a lift control unit 373 receives and sends a control signal.

As an example of the sensor unit 375, the first limit switch LS1 shown in FIG. 6A, the second limit switch LS2 that recognizes the open state of the door, and the switch are turned on to recognize the closed state of the door. It includes a safety switch 377 to control the main control unit 370 through the elevating control unit 373 so that the elevating box moves up and down only. For example, the limit switches LS1 and LS2 may be selected from a magnetic switch, a photo coupler, or a wireless switch. An example of an operation means of the safety switch 377 may include an operation plate 315 as shown in FIG. 6 protruding from the top of the door fixing plate 201.

5A and 6A, the doors 100 and 200 are normally closed as shown in FIGS. 5A and 6A, respectively, and in this state, the user opens and lifts the elevator door to achieve the same state. In this case, the vertical hot plate 310 is spaced apart from the vertical hot plate 311, and the moving plate 320 forms a compressed state of the bottom plate 330 and the spring 329, which is the hot plate fixing plate of FIG. 8A. 350 and the vertical hot plates 310 and 311, the permanent magnet 332 and the moving waist plate 322 are fixed by magnetic force. Of course, the toggle driving plate 340 stably maintains the closed state with the shock absorbing plate 342 of the stop plate 360 by the shock absorbing force of the shock absorbing plate 342.

In addition, as shown in FIG. 6A, only when the operating plate 315 presses the safety switch 377 and the switch is turned on, the user selects a keyboard of a desired floor. In this case, the boarding box 372 of the boarding box or the boarding point of the boarding point When the keyboard 371 is pressed, it is recognized by the main controller 370 shown in FIGS. 12 and 13 and stopped at the requested floor. In addition, the elevating control unit 373 of the elevating vehicle stopped on the floor commands the motor driving unit 376 to drive the elevating motor 271. The driving of the elevating motor 271 eventually moves the fan plate 281 and the hot plate fixing plate 350 integrated with each other in the direction in which the elevating door 200 opens. That is, one-way rotational force (for example, clockwise rotation) by the motor 271 is provided to the pulley 274 through the pulley belt 272, and the pulley 274, which is powered, provides the fan belt pulley 275. The lower part of the fan belt 281 is moved from the right side to the left side, which in turn moves the hot plate fixing plate 350 of the opening device 300 fixed through the fan belt fixing plate 356 to the fan belt 281 from right to left. To provide the power to do so.

In addition, in the characteristic configuration of the present invention, when the motor 271 moves one door fixing plate 201 through the fan belt 281, and describes the power to open and close both doors at the same time, one door fixing plate 201 6A (for example, the left side) moves to the left side through the lower wire fixture 209 of the wire 287 moving along the wire roller 286, and the other door fixing plate 201 (FIG. 6A In this case, for example, the right side moves to the right through the upper wire fastener 209 of the wire 287. Accordingly, when the upper and lower wires 287 are fixed on the closed loops, the doors are opened or closed at the same time.

In this case, when the hot plate fixing plate 350 and the bottom plate 330 is opened from the right to the left in association with the fan belt 281, the vertical hot plate 310 integrally fixed to the moving plate 320 through the screw 310b is It is to move from the initial left to the right. That is, when the moving plate 320 stopped at the stop plate 360 by the movement of the bottom plate 330 and the hot plate fixing plate 350 is compressed to the left, the elastic force of the spring 329 is restored, and the moving plate 320 is instantaneously. ) Is moved from left to right, and thus the vertical heating plate 310 is also moved as shown in FIG. 7 (the spacing between the vertical heating plate 311 and the vertical heating plate 311 is reduced). This is determined based on the first opening action of the first push roller based on the hinge pin 121 adhered to the fixed bar fixing plate 140 fixed to the door frame plate 110 of the landing door 100 when it is determined based on FIG. 125 is pushed from the left side to the right side of the vertical heating plate 310, and at the same time, since the first push roller 125 forms an eccentric state on the hinge pin 121, the hook bar 120 is rotated in a clockwise direction so that the hook protrusion 122 ) Is released (in the case of FIGS. 5A and 5B, the direction is reversed, and thus rotates counterclockwise as shown by the dotted line shown in FIG. 5B).

Therefore, each lift door 200 is initially unlocked, and at the same time, the fan belt 281 continues to move in conjunction with the rotation of the motor 271 to open in FIG. 5B state (not shown in the lift portion). Of course, when it's closed, it's the reverse.

In the present invention, when the door is opened and then closed, the hot plate fixing plate 350 is moved to the right by the elastic force of the spring 329 as shown in FIG. 7 immediately before the door is almost closed. ) Touches the stop plate 360 so that the spring 329 is compressed from the state of FIG. 8B to the state of FIG. 8A. In this case, the moving plate 320 is fixed while moving from the state of FIG. 8B to the state of FIG. 8A through FIG. 8C through the force of the permanent magnet 332, and the permanent magnet 332 is compressed as shown in FIG. 8A even when the spring 329 is compressed. It keeps a fixed state because it receives magnetic force by.

In this way, the toggle action by the permanent magnet 332 acts to reduce the impact when the elevating door 200 is last closed, which is a factor that makes it possible to operate smoothly and stably without any additional power consumption.

In addition, the vertical heating plate 310 is configured to be elastic with a spring (329) when the fingers are sandwiched between the riding door 200 to provide a certain amount of shock absorbing free space to ensure the stability of the user and smooth Allow the case to open.

Of course, when a large bag is caught in the door when it is closed, the rotation of the motor 271 is forcibly stopped, which is recognized by the lift control unit 373 through an unillustrated encoder installed in the motor 271. It acts to ensure safety by opening quickly.

In addition, the present invention is a strong magnet 288 installed in the upper frame 280 as shown in Figures 6a to 6c and 7 is lifted by the magnetic field coupling with the door fixing plate 201 only before the door 200 is completely closed. The magnetic coupling is completed when it is completely closed as shown in FIG. 6A. Therefore, in this state, even if the electric force to maintain the closed state in the elevating door 200 due to a power failure or the like, since the strong magnet 288 is holding the magnet fixing cam 289 by the magnetic force, the magnet fixing cam (289) ) Is installed door fixing plate 201 and the corresponding lift door 200 can also block the opening. Therefore, it acts to prevent the safety accident that the elevating door 200 is opened by the restoring force by the spring 289 of the opening device 300 at the time of power failure. Of course, for this purpose, the magnetic strength of the strong magnet 288 must be greater than the spring force of the spring 329.

1 is a view of the rear door of a general elevator lift door,

Figure 2 is a view of the general elevator landing door in the back state,

3 is a side view showing the main portion showing the lifting door and the landing door closed,

4 is a side view showing the main portion showing the lifting door and the landing door,

Figure 5a is a view of the landing door and the landing door in a state in which the non-powered coupling device installed thereon in the rear state of the present invention closed;

Figure 5b is a view of the landing door is opened with the landing door of the present invention and the non-powered coupling device installed thereon;

Figure 5c is a perspective view of the non-powered coupling device of Figure 5a,

Figure 6a is a view showing a case in which the door is closed in the back state other than the interior of the elevator door of the present invention,

Figure 6b is a main part showing the opening preventing device during power failure,

6C is a cross-sectional view taken along the line A-A of FIG. 6B;

FIG. 7 is a view illustrating a case in which the door of FIG. 6 is opened;

Figure 8a is a main part showing a moving plate operating state of the closed state of the present invention,

Figure 8b is a main part showing a moving plate operating state of the open state of the present invention,

Figure 8c is a principal part showing an intermediate state of the closed and open of the present invention,

9 is an exploded perspective view of the opening device of the present invention;

10 is a vertical sectional view of the opening device of the present invention;

11 is a horizontal cross-sectional view showing the principle of the opening device and the non-powered coupling device of the present invention;

12 is a control circuit diagram provided in the present invention;

13 is a control circuit diagram installed in the hoisting box of the present invention.

Explanation of symbols for the main parts of the drawings

100; platform door 100A; power coupling device 110; door frame plate 120; hook bar 121; hinge pin 125; first push roller 130; hook coupling plate 200; elevating door 201; door fixing plate 207; roller 208; screw 209; Wire fixture 209-1; fixing plate 209-2; fixing screw 270; elevating frame 271; elevating motor 272; pulley belt 274; pulley 275; panbelt pulley 280; upper frame 281; pan belt 282; roller 283; pan belt Holder 285; rail 286; wire roller 287; wire 288; strong magnet 289; magnet fixing cam 289-1; magnet fixing stopper 300; opening device 310,311; vertical heat plate 310a, 311b; vertical heat plate body 310b, 311b; screw 315; safety Switch lever 320; moving plate 321; moving roller 322; moving waist plate 323; toggle groove 324, 325; cushion layer 326; upper head plate 327; coupling column 328; lower head plate 329; spring 330; bottom plate 332; permanent magnet 334; Moving waist plate 335; External surface rail 340; Toggle drive plate 342; Shock absorbing plate 350; Hot plate fixing plate 351,352, 353, 364; Column 355; Moving waist plate 356; Pan belt fixing plate 360; Stop plate 362; Shock absorber plate 370; Main control unit 371; Platform keyboard 372; Elevator keyboard 373; Elevator control 375; Sensor unit 376; Motor driver 377; Safety switch

Claims (7)

In the elevator door opening and closing device for opening and closing the elevator door by the power of the elevating motor by combining the door frame plate of the landing and the non-powered coupling device for opening and closing the door frame installed on the landing frame and the opening device having a hot plate on the outer surface of the landing box. , Hook coupling plate 130 is installed on the landing frame 103, hook coupling plate 130 and the hook bar 120 is hooked at the front end, and the hinge pin 121 installed on the rear end of the hook bar 120 And, Non-powered coupling device (100A) including a first push roller 125 installed in the upper rear end to receive the hook release force in the eccentric state around the hinge pin (121); And An opening device 300 for the lift; The opening device 300 is installed on the upper frame 280 and the door fixing plate 201 of the lift box and forms a small movable waist plate 322 in the middle, and has a toggle groove 323 in the spring at the bottom plate 330. A moving plate 320 which acts as a shot at 329, Vertical heating plate 310 is coupled to the surface of the moving plate 320 by a predetermined distance to eccentrically drive the eccentric first push lever 125 of the non-powered coupling device (100A), Coupled to the door fixing plate 201 to secure the lift door 200 from above, and installed a permanent magnet 332 having a magnetic field of more than a spring 329 resilience force in the toggle groove 323 corresponding part, overlapping, permanent magnet ( 332 is a function to maintain the open and closed position of the moving plate 320, the bottom plate 330 is located on the bottom of the mobile waist plate 322, Toggle drive plate is fixed to the side of the movable waist plate 322 and has a shock absorbing plate 342 to reduce the impact upon contact with the stop plate 360 installed on the upper frame 280 when the lift door 200 is closed 340, It is installed so as to be vertically spaced through the pillars 351,352,354,353 integrated on the four corners on the bottom plate 330, and fixed the vertical hot plate 311 at a predetermined distance from the vertical hot plate 310, the elevating at the top Elevator door opening and closing device comprising a hot plate fixing plate 350 having a fan belt fixing plate 356 integrally coupled to the fan belt (281) to operate the door to open and close the door by the power from the motor (271). According to claim 1, wherein each of the pillars 351,354 and the heat plate fixing plate 350 between the pillars (352,353) moving back plate 322 having a margin that can move in conjunction with the vertical heating plate 310, the moving waist plate ball 355 The elevator door opening and closing device comprising a cushion layer (324, 325) for absorbing the impact with the pillar (351,352) (354,353) to the movable waist plate 322 corresponding to the pillar (351,352) (354,353). According to claim 1, the moving plate 320 is a moving waist plate 322 for reciprocating between the pillars (351,352) and the pillars (354,353), Upper and lower head plates 326 and 328 extending longer than the movable waist plate 322 above and below the movable waist plate 322, An elevator door opening and closing device, comprising: a moving roller 321 installed on upper and lower head plates 326 and 328 so as to be slidable along the outer surface rails 335 of the pillars 351 and 352 and the pillars 354 and 353. According to claim 3, wherein the upper head plate 326 and the vertical heating plate 310 is fixed with a screw 310b through a coupling column 327, The vertical hot plate 311 is fixed to the hot plate fixing plate 350 with a screw 311b, Each of the vertical heating plates 310 and 311 is vertical, and the lower ends of the vertical heating plates 310 and 311 are integrally formed with the vertical heating plate main bodies 310a and 311a forming a horizontal bottom such that the screws 310b and 311b are coupled to each other. Elevator door opening and closing device. The top frame 280, the wire roller 286 for supporting the wire 287 on the closed loop at both ends, A door fixing plate 201 supporting each of the elevating doors 200 of the elevating box from above; It further comprises a wire fixture 209 for coupling the door fixing plate 201, The lower end side of the wire fixing tool 209 is coupled to one door fixing plate 201, and the upper end side of the wire fixing tool 209 is coupled to the other door fixing plate 201, so that each door fixing plate is moved according to the movement of the wire 287. Elevator door opening and closing device, characterized in that configured to open and close the landing door 200 coupled to (201) at the same time. According to claim 5, The top frame 280 and the door fixing plate 201 corresponding to the position immediately before the door fixing plate 201 is provided with a power failure prevention device including a strong magnet 288, The magnetic strength of the strong magnet 288 is an elevator door opening and closing device, characterized in that configured to achieve more than the strength that can block the automatic opening by the spring (329) of the opening device 300 in case of power failure. The method of claim 6, wherein the opening prevention device in case of power failure and the strong magnet 288 installed in the upper frame 280, A magnet fixing stopper 289-1 installed on the side of the strong magnet 288 to prevent movement of the strong magnet 288, and When the lift door 200 is closed, it comprises a magnet fixing cam (289) installed in the door fixing plate 201 of the position that generates the attraction force by the magnetic force of the strong magnet 288 to maintain the closed state even in case of power failure Elevator door opening and closing device, characterized in that.

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