KR100788261B1 - Automatic door - Google Patents

Abstract

The present invention relates to an automatic fire door with a fire door drive mechanism having a fire door drive motor fixed to the upper center of a door frame frame for slidingly opening and closing a plurality of fire doors by being used mainly as a fire door of an elevator or a front door of a building, Wherein the fire door drive mechanism includes a fixed door which is mainly used as a fire door of an elevator or a front fire door of a building entrance and a slide door which is slidably openable and closable with respect to the fixed door, A driving sprocket disposed opposite to the driven pulley; and a drive motor for driving a fire door, the drive sprocket having a reduction gear coupled with the drive sprocket so as to be rotatable at a reduced speed, And the slider The door includes a first and a second rolling roller so as to be capable of rolling along an upper guide rail arranged transversely to the upper portion of the frame of the door frame, first and second caliper brackets rotatably supporting the first and second rolling rollers, The first and second support brackets are rotatably supported by the first and second caliper brackets. The first and second support brackets are movably movable in the vertical direction, The first and second mounting brackets having the first and second mounting brackets, respectively, so that more complete air tightness can be achieved.

Description

{AUTOMATIC DOOR}

1 is a schematic front view of an automatic fire door according to a conventional example,

Figure 2 is a schematic front view of an automatic fire door according to the invention,

FIG. 3 is a plan view of the automatic fire door according to an embodiment of the present invention,

FIG. 4 is a plan view of the automatic fire door according to the present invention; FIG.

5 is a side view of the automatic fire door according to the present invention,

FIG. 6 is a side view of the common slider according to the second embodiment of the present invention; FIG.

Description of the Related Art

  10: door frame frame 120: slide door

 210: first slider 211: first drive roller

 212: first caliper bracket 213: first support bracket

 214: first mounting bracket 215: first positioning bolt

 216: first long hole 217: first fastening bolt

 220: second slider 221: second drive roller

 222: second caliper bracket 223: second support bracket

 224: Second mounting bracket 225: Positioning bolt

 226: 2nd slot 227: 2nd fixing bolt

 230: upper guide rail 231: first curved portion

 240: Lower guide rail 241: Third curved portion

 250: third rolling roller 260: cam block

 270: Fourth rolling roller

The present invention relates to a driving apparatus for an automatic fire door, and more particularly, to an automatic fire door used for an elevator fire door or a front fire door of a building entrance, in which the opening and closing of the two side fire doors are performed asymmetrically using a friction clutch action based on the magnetic force of the roller The present invention relates to a driving apparatus for an automatic fire door,

BACKGROUND ART Generally, an automatic fire door used as a fire door of an elevator or a front fire door of an entrance is connected to a timing belt or a V-belt which is made to reciprocate a certain section by the force of a geared motor, And open and close to both the left and right sides.

In this case, the fire doors are provided on both upper surfaces of the fire doors so that the fire doors can be slid more smoothly with the fire doors being suspended on the guide rails. By providing the stone pieces at the lower ends of the fire doors, So that the fire door is reciprocated without rocking.

In other words, as shown in FIG. 1, an embodiment of the fire door drive unit 40 in the conventional automatic fire door will be described. The drive pulley 41 A timing belt or a V-belt 43 for connecting the drive pulley 41 and the driven pulley 42 to the drive pulley 41 and a timing belt or V A driving motor 44 for applying a moving force to the belt 43; a guide rail 45 provided on the upper underside of the frame frame 10 so as to be in parallel with the timing belt or the V-belt 43; A left side fire door 20 is fixed to the lower side of the belt or the V-belt 43 and a left side fire door 20 is connected to the lower side of the left side fire door 20 and is guided by the guide rail 45, And a kit 46, 46 '. Here, right side fire doors 30 are suspended by right side fire door hanger brackets (not shown) on both sides of the lower portion of the timing belt or V-belt 43.

However, for example, in a state where the right side door 30 is closed on the right side, the left side fire door 20 moving in conjunction with the movement of the transmission member such as the timing belt or the chain is displaced from the right side door 30 The contact contact force between the door frame 10 and the fire doors 20 and 30 is lowered due to various problems of the door frame 10 and fire flames are liable to leak when the temperature rises to 1250 degrees Celsius during a fire. And there was a disadvantage that no measures were taken. Furthermore, there was a concern that the smoke inside the fire-fired facility could not be blocked.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an automatic fire door which is used for an elevator fire door or a front fire door of a building entrance and which is capable of smoothly opening and closing the fire door, In addition, the present invention provides an automatic fire door improved to fully perform the function of the fire door so as to achieve complete airtightness in the closing operation.

In order to achieve this,

An automatic fire door provided with a fire door drive mechanism having a motor for driving a fire door, which is mainly used as a fire door of an elevator or a front fire door of a building and is fixed to the upper center of the door frame frame to slidely open and close a plurality of fire doors,

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The fire door drive mechanism includes:

A sliding door that is used mainly as a fire door of an elevator or a front fire door of a building door and a sliding door which is slidably openable and closable with respect to the fixed door, And a drive motor for driving a fire door having a drive sprocket positioned opposite to the driven pulley and a reduction gear to which the drive sprocket is rotatably and rotatably driven,

Wherein the slide door includes first and second rolling rollers capable of rolling along an upper guide rail arranged transversely to the upper portion of the door frame frame, first and second rolling rollers rotatably supported by the first and second rolling rollers, A first and a second support bracket rotatably supported by the first and second caliper brackets; and a second support bracket movably supported by the first and second support brackets in a vertical direction, Wherein the sliding member is configured to be slidably movable through first and second sliders having first and second mounting brackets having vertical or oblique slits.

FIG. 2 is a schematic front view of an automatic fire door according to the present invention, and FIG. 3 is a front view of an automatic fire door according to an embodiment of the present invention. FIG. 4 is a plan view illustrating the lower part of the automatic fire door according to the present invention, and FIG. 5 is a plan view showing the right side of the automatic fire door according to the present invention. Fig. 2 is a side view showing the structure of Fig.

2 and 3, reference numeral 1 denotes a fixed door 110 which is mainly used as a fire door of an elevator or a front fire door of a building entrance, a slide door 120 which can be opened and closed slidably with respect to the fixed door 110, A driven pulley 140 in which a transmission member 130 such as a chain that transmits a driving force for driving the slide door 120 is hooked and wound on an upper portion of the door frame 10 to drive the driven pulley 140 And a drive motor M for driving a fire door having a drive sprocket 150 opposed to the drive sprocket 150 and a reduction gear 160 coupled to the drive sprocket 150 so as to be rotatable at a reduced speed, It is an automatic fire door including.

The slide door 120 includes first and second rolling rollers 211 and 221 having rollers 211 and 221 rotatable along guide rails 230 arranged transversely on the door frame frame 10, And is configured to be slidingly movable through the second sliders 210 and 220. [

3, the end of the guide rail 230, which is horizontally arranged on the top of the door frame frame 10, is in close contact with the door frame frame 10 when the slide door 120 is finally closed, The first curved surface portion 231 is formed to assist the contact.

A flameproof tape (not shown) made of a heat-resistant fabric may be adhered to the inner side surface of the slide door 120 to prevent smoking between the inside and the outside of the slide door 120.

The slide door 120 includes first and second rolling rollers 211 and 221 for rolling along an upper guide rail 230 arranged in an upper portion of the door frame frame 10, First and second caliper brackets 212 and 222 rotatably supported by first and second rolling rollers 211 and 221 and first and second caliper brackets 212 and 222 rotatably supported by the first and second rollers 211 and 221, The first and second support brackets 213 and 223 are vertically movable in the vertical direction so that the first and second support brackets 213 and 223 are movable in a vertical direction Is configured to be slidingly movable through first and second sliders (210, 220) having first and second mounting brackets (214, 224) having directional elongated holes (226, ...).

4, the upper surface of the second mounting bracket 224 is provided with a second roller 221 coupled to the second support bracket 223, And a positioning bolt 225 supported on the upper portion of the second support bracket 223 for adjusting the vertical position. Here, when adopting a structure in which the slits formed in the sliders 210 and 220 are passed through in the oblique direction, it is possible to easily set the horizontal holding of the left and right, It is possible to provide a structure in which the slide door 120 can be easily supported even when the slide door 120 is heavy.

4, a lower portion of the lower portion of the door frame 120 for guiding the movement of the third rolling roller 250, which is supported on the lower end surface of the slide door 120, And the guide rail 240 is fixed so as to protrude in all directions.

4 and 3, a cam block for guiding the lower front portion of the slide door 120 at a position spaced apart from the lower guide rail 240 is provided at a lower portion of the door frame frame 10, (260) and a fourth rolling roller (270) for pressing the cam block (260).

A curved guide block 280 for guiding the movement of the fifth rolling roller 290 supported on the left lower end surface of the slide door 120 in a rolling manner is formed at the lower left end of the door frame 10, So that the second curved surface portion 281 is formed so as to assist close contact with the door frame 10 when the slide door 120 is finally closed.

4, the front end of the lower guide rail 240, which is arranged transversely to the lower side of the door frame frame 10, is connected to the door frame frame 10 when the slide door 120 is finally closed, And the third curved surface portion 241 is formed to assist the close contact.

With such a configuration, a sliding door fire door capable of being opened and closed and a fire door drive mechanism for operating the fire door are achieved.

In addition, in the figure, the fire door drive mechanism is provided with a reduction gear 160 (hereinafter, referred to as " lower ") which is provided on both sides of the upper portion of the door frame 10 and which has pinion gears receiving driving force from the drive motor M via a known gear train The sliding door 120 is moved in conjunction with a transmission member such as a chain that is moved in accordance with the gear ratio.

Here, the slide door 120 is slidably installed in upper, left and right ends and lower door frames 10, which are divided along the inner periphery of an opening of a building wall, and the upper door frame 10 A front face is partially opened so that a microcomputer and a fire door driving mechanism for moving a plurality of slide doors are detachably attached.

In addition, since the threshold of the fire door and the height of the guide rail are respectively set by a frame of a building or a fire door, when the threshold of the fire door and the height of the guide rail are determined at the time of construction, the size of the fire door is determined accordingly. After attaching the roller-attached slider to the upper face of the fire door, the slider is mounted on the upper guide rail, and the slide door 120 is slidably mounted.

The slide door 120 is suspended on the upper side of the door frame frame via the guide rail and is inserted into the upper side inner wall of the door frame 10 partially opened on the front side, Thereby enabling the sliding movement.

In the above-described fire automatic door drive system, a driven pulley engaged with the periphery of a chain or the like for driving an automatic door and a reduction gear 160 capable of rotating in reverse can be installed and can be opened and closed.

It is an object of the present invention to allow for automatic opening and closing of automatic doors in case of an emergency or daily power interruption such as the occurrence of a fire or a power interruption accompanied by the occurrence of a fire, So that the opening and closing of the automatic door can be controlled according to a predetermined program.

In order to achieve such operation, the present invention is characterized in that the AC power source and the battery power source are connected to the automatic door controller for controlling the automatic door drive motor M through the emergency storage battery device, and the automatic door controller The power from the AC power source is normally applied to the automatic door controller while the power supply of the automatic door controller is inhibited from the battery power source and the battery power is charged from the AC power source in the case where the emergency power battery device is charged from the AC power source, The automatic door is switched to supply power to the automatic door controller so that the operation of the automatic door controller or the normal operation is performed by the function of the automatic door controller. In case of an emergency such as a fire, the external emergency signal is stored, According to a predetermined program To make, and is provided an automatic fire door drive system, an emergency signal and a power shut-down signal which is output to the automatic door controller.

Further, in setting the elevation position of the slide door, the upper guide rail 230 is bridged on the door frame 10 in a direction crossing the door frame.

At this time, the first and second sliders 210 and 220 having the slide door 120 coupled thereto are mounted on the installed upper guide rail 230, and then the transmission member 130 is fixed to the clamping member 300 To the first or second slider (210, 220).

Next, vertical positioning of the slide door 120 is performed by the positioning bolts 215 and 225 inserted and fixed to the roller-attached sliders 210 and 220 slidably mounted on the upper guide rail 230 And the fixing bolt 227 is fastened and fixed (see Fig. 4).

The suspension structure of the slide door 120 with respect to the upper guide rail 230 via the positioning bolts 215 and 225 and the first and second sliders 210 and 220 is achieved.

When power is supplied to the drive motor M under the control of the control unit, the drive sprocket 150 on the rotation shaft of the reduction gear of the motor M is hooked to the slide door 120, The motor driving force is transmitted to the sliders 210 and 220 through the wound electromotive member 130 so that forward and reverse driving for opening and closing the slide door 120 is achieved.

The driving of the first driving roller 211 corresponding to the first curved surface portion 231 of the upper guide rail 230 and the driving of the fifth rolling roller 290 corresponding to the second curved surface portion 281 The backward pushing movement of the third rolling roller 250 corresponding to the third curved surface portion 241 and the backward pressing movement of the fourth rolling roller 270 corresponding to the cam block 260 So that a more reliable sealing force can be assured.

Of course, the control unit determines the opening / closing position in response to the known opening / closing position sensor of the slide door 120, and sends it to the control unit, thereby instructing the control unit to start driving any one of the forward and backward motions of the motor M.

As described above, according to the present invention, the setting force for the slide door pressing operation is transmitted to the slide door while the slide door is pressed and operated based on the traveling of the individual drive rollers guided in correspondence with the first to third curved surface portions So that a confidential fire door can be obtained.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It should be understood that other embodiments are possible.

Claims (6)

An automatic fire door provided with a fire door drive mechanism having a motor for driving a fire door, which is mainly used as a fire door of an elevator or a front fire door of a building and is fixed to the upper center of the door frame frame to slidely open and close a plurality of fire doors, The fire door drive mechanism includes: A door that is used mainly as a fire door of an elevator or a front fire door of a building entrance, and a chain that transmits driving force for driving the slide door to an upper portion of the door frame frame to drive a slide door that can be opened and closed slidably with respect to the fixed door. And a drive motor for driving a fire door having a drive sprocket positioned opposite to the driven pulley and a reduction gear to which the drive sprocket is rotatably and rotatably driven, Wherein the slide door includes first and second rolling rollers capable of rolling along an upper guide rail arranged transversely to the upper portion of the door frame frame, first and second rolling rollers rotatably supported by the first and second rolling rollers, A first and a second support bracket rotatably supported by the first and second caliper brackets; and a second support bracket movably supported by the first and second support brackets in a vertical direction, Wherein the sliding door is configured to be slidable via first and second sliders having first and second mounting brackets having vertical or oblique slits. The method according to claim 1, And a positioning bolt supported on an upper portion of the second support bracket is coupled to the upper surface of the first and second mounting brackets to adjust the vertical position of the second rolling roller coupled to the first and second support brackets Automatic fire door. 3. The method of claim 2, And a lower guide rail for guiding the movement of the third rolling roller supported so as to be capable of rolling on the lower end surface of the slide door is fixed to the lower inside of the door frame frame so as to protrude in all directions. The method of claim 3, And a cam block for guiding a lower front portion of the slide door at a position spaced apart from the lower guide rail and a fourth rolling roller for pressurizing the cam block are erected and fixed at a lower portion of the door frame frame. . 5. The method of claim 4, A curved guide block for guiding the movement of the fifth rolling roller supported so as to be capable of rolling on the lower left end surface of the slide door is coupled to the lower left end of the door frame so that when the slide door is finally closed, And a second curved portion is formed to assist tight contact with the frame. 6. The method of claim 5, Wherein a front end of a lower guide rail arranged laterally at a lower portion of the door frame frame is formed with a third curved portion so as to assist close contact with the door frame frame when the slide door is finally closed.

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