KR100853747B1

KR100853747B1 - Automatic open-closing system for a fire door

Info

Publication number: KR100853747B1
Application number: KR1020070020068A
Authority: KR
Inventors: 재복 강
Original assignee: 재복 강
Priority date: 2007-02-28
Filing date: 2007-02-28
Publication date: 2008-08-22

Abstract

An automatic opening and closing auxiliary device for a fire door is provided to control the opening angle of a door easily and freely by coupling an arm gear, a shaft gear, a ball gear, a first actuating part and a second actuating part closely and operating, and to detect smoke or temperature, or, to detect smoke and temperature simultaneously in a fire and to close a door automatically by attaching a bimetal type temperature switch to the bottom of a main body. An automatic opening and closing auxiliary device for a fire door is formed by fixing two fixing plates(201,210) to the inside of a case of a main body upward and downward, coupling a fixing pin(301), an arm gear(302) and an arm(303) to a through hole formed in the center of the upper fixing plate in order, coupling a bearing(410), a shaft(420) and a bearing(410') to a through hole(202) formed on one side of the upper fixing plate in order and coupling to a through hole(211) formed on one side of the lower fixing plate, coupling a first actuating part(430) to a through hole of the lower fixing plate coupled with the bearing, rotating a motor gear(442) coupled to the lower part of a motor(440) fixed to the lower fixing plate by a fixing guide(443) by engaging with an actuating gear(434) formed on one side of the first actuating part, and coupling a second actuating part(500) to the upper part of a rectangular through hole formed on the other side of the lower fixing plate.

Description

Automatic open-closing system for a fire door}

Figure 1a is an external perspective view of the automatic opening and closing device for fire door according to the present invention

Figure 1b is an internal perspective view of the automatic opening and closing device for fire door according to the present invention

Figure 2 is an exploded perspective view of the automatic opening and closing device for fire door according to the present invention

Figure 3 is a perspective view of the operation of the female gear and shaft gear in the automatic opening and closing assist device

4A is a perspective view of an axis in the accessory

4b is an exploded perspective view of the shaft;

4C is a longitudinal sectional view of the shaft;

5a is a perspective view of a first operating part in the auxiliary device;

5B is an operating perspective view of the first operating part and the shaft;

Figure 5c is a cross-sectional view of the door operation

Figure 5d is a cross-sectional view when operating the door

6A is a perspective view of the operation of the first operation unit and the motor in the auxiliary device;

6B is an operation plan view of the first operating part and the motor;

7a is a perspective view of a second actuating part in the auxiliary device;

7B is an exploded perspective view of the second operating part;

7C is an operational perspective view of the second operating part and the shaft;

7D is a cross sectional view of the operation of the second operating part and the ball gear;

7E is an operational longitudinal cross-sectional view of the second actuator and shaft;

Figure 8a is a perspective view of the combination of the guide and the insertion hole in the second operating portion

Figure 8b is a coupling diagram of the guide opening and the insertion opening in the second operating portion when opening the door

Figure 8c is a coupling of the guide and the insertion hole in the second operating portion when the stop after opening the door

Figure 8d is a coupling of the guide and the insertion hole in the second operating portion when the door is closed

9A is an operation cross-sectional view of the first operating portion and the shaft before the fire occurs;

Figure 9b is a plan view of the rotation state of the first operating portion by the motor gear in the event of fire

Figure 9c is a cross-sectional view of the operation of the first operating portion and the shaft after the fire

10 is an operation of the gears in the automatic opening and closing assist device

10: body 101: case

201: upper fixing plate 210: lower fixing plate

202, 211: through

301: fixed pin 302: female gear

303: arm 410: bearing

420: axis 421: axis of rotation

422: shaft gear 423: ball cloud portion

424 Ball 425 Spring

426: ball adjuster 427: ball gear

428: ball guide 430: the first operating portion

431 fixing hole 432: insertion groove

433: sensing unit 434: operating gear

440: motor 441: motor gear shaft

442: Motor Gear 443: Fixed Guide

500: second operation portion 510: housing

511: insertion hole 520: guide

521 groove 530 support

540: control port 541: insertion hole

550: control spring 560: spring

The present invention relates to an automatic opening and closing device mounted on a door closer of a fire door, and more particularly, a shaft, a first operating part, and a second operating part are built into the main body to be engaged with a gear to be set in advance when the door is opened. The opening angle can be set freely without work, and the bimetal type temperature switch and the smoke sensor are connected in parallel, so that the door is automatically closed by detecting smoke, temperature, or smoke and temperature at the same time. The present invention relates to an automatic opening and closing device for a fire door.

In the case of the conventional door closer, when the door closer is attached to a general door or a fire door, the door opening angle is adjusted in advance and assembled by hand, and when the door opening angle is to be changed, the product is separated again to open the door angle. There was a hassle to guess.

In addition, in order to prevent the spread of fire in the building, the doors of the special evacuation stairs or the emergency lift platform ventilation area are to be installed as fire doors according to the laws of firefighting law.The fire doors are normally closed only by heat detection. Not only could not prevent toxic gas, which is the biggest cause of human injury, but also the heat sensor already used due to fire was completely damaged and had to be disassembled for resetting. Therefore, there is a problem that can cause a great loss of life in the event of a fire due to the heat detection, that is, the fuse blank type fire door door closers can not be checked frequently to perform a failure test.

The present invention has been made to solve the problems as described above, the object of the present invention by operating in close contact with the female gear and the shaft gear, the ball gear, the first operating portion and the second operating portion inside the main body, By controlling the opening angle of the door easily and freely, the bimetallic temperature switch is attached and formed on the bottom of the main body, so that the door is automatically closed by detecting smoke or temperature at the time of fire or detecting smoke and temperature at the same time. The present invention provides an automatic switching aid.

With reference to the accompanying drawings the configuration of the present invention for achieving the above object will be described.

Figure 1a is an external perspective view of the automatic opening and closing device for the fire door according to the present invention, Figure 1b is an internal perspective view of the auxiliary device, Figure 2 is an exploded perspective view of the auxiliary device, Figure 3 is an operating perspective view of the arm and gear gears, Figure 4a is a perspective view of the shaft, Figure 4b is an exploded perspective view, Figure 4c is a longitudinal cross-sectional view, Figure 5a is a perspective view of the first operating portion, Figure 5b is an operating perspective view of the first operating portion and the shaft, Figure 5c is an operation cross-sectional view when the door is locked, Figure 5d is an operation cross-sectional view of the door release, Figure 6a is an operating perspective view of the first operation unit and the motor, Figure 6b is an operation plan view, Figure 7a is a perspective view of the second operation unit, Figure 7b is an exploded perspective view, Figure 7c is a second operation 7D is an operating cross-sectional view of the second operating part and the ball gear, FIG. 7E is an operating longitudinal cross-sectional view of the second operating part and the shaft, and FIG. 8A is a combination of the guide and the insertion hole in the second operating part when the door is opened. Fig. 8b shows the inside of the second operating part at the stop after the door is opened. 8C is a coupling view of the guide and the insertion hole in the second operating portion when the door is closed, FIG. 8D is a perspective view of the guide and the insertion hole in the second operating portion, and FIG. 9A is a first operation before a fire occurs. 9b is a plan view of the rotational state of the first operating part by the motor gear in the event of a fire, FIG. 9c is a sectional view of the first operating part and the shaft after the fire, and FIG. 10 is an operation of the gears in the automatic switching aid. It is also.

Looking at the configuration of the present invention, two fixing plates 201 and 210 are fixed up and down inside the case 101 of the main body 10; A fixing pin 301, a female gear 302, and a female arm 303 are sequentially coupled to a through hole formed at the center of the upper fixing plate 201; The through hole 202 formed on one side of the upper fixing plate 201 is coupled to the through hole 211 formed in one side of the lower fixing plate 210 by the bearing 410 and the shaft 420 and the bearing 410 'in turn ; The first operating part 430 is coupled to the through hole 211 of the lower fixing plate 210 coupled with the bearing 410 '; The motor gear 442 coupled to the lower portion of the motor 440 fixed to the lower fixing plate 210 by the fixing guide 443 is engaged with the operation gear 434 formed at one side of the first operation part 430. Rotate; The second operation part 500 is fitted into the upper portion of the rectangular through-hole formed on the other side of the lower fixing plate 210 is coupled to.

As shown in FIG. 1, the upper fixing plate 201 has a predetermined size longer than the lower fixing plate 210 and is attached to the rear surface of the upper door frame.

In the above, the shaft 420 is formed around the axis of rotation 421, the shaft gear 422 is formed in the upper portion, three cylindrical grooved ball cloud portion 423 is formed in the center, the ball cloud Balls are fitted into the cylindrical grooves in the portion 423, respectively, and the spring 425 and the ball adjusting tool 426 are inserted into the insertion grooves formed on the bottom surface of the rotary shaft 421, and are coupled to each other. The ball gear 427 is formed of the structure is coupled to the ball cloud portion 423 by being fitted from the bottom surface of the rotating shaft 421.

At this time, the shaft gear 422 formed on the upper portion of the shaft 420 is rotated in engagement with the female gear 302 is fixed to the upper fixing plate 201 by the fixing pin 301.

That is, when the arm 303 rotates by opening or closing the door, the arm gear 302 and the shaft gear 422 are engaged with each other to rotate.

The shaft 420 is fitted into the through holes 202 and 211 of the upper fixing plate 201 and the lower fixing plate 210. At this time, the ball adjusting opening 426 inserted into the shaft 420 is the lower fixing plate ( It is a structure that is inserted into the insertion groove 432 of the first operation portion 430 through the through-hole 211 of the 210.

The first operation unit 430 has a fixed hole 431 is formed on the other side and the operation gear 434 is formed on one side, the operation gear 434 rotates in engagement with the motor gear 442 of the motor 440. It is a structure.

An arc-shaped contact surface 435 and an insertion groove 432 are formed at the center of the first operation unit 430, and a sensing unit 433 is formed at the edge of the contact surface 435 to switch according to the moving position. It is a structure that can control movement by giving signal.

That is, when the operating gear 434 of the first operating unit 430 is rotated by the motor gear 442, the first operating unit 430 is rotated based on the center of the fixing hole 431, the shaft 420 The ball control opening 426 is moved from the insertion groove 432 located in the center of the first operating portion 430 to the folding surface 435 and the ball adjusting opening 426 is pushed up to Figure 5d As shown in the ball cloud 423 and the ball guide 428, the ball 424 in the recessed groove of the ball adjuster 426 will be out of position and the ball 424 is out of position Regardless of the gear 427, the rotating shaft 421 is rotated and the shaft gear 422 is also rotated so that the arm gear 302 is engaged with each other to close the door.

At this time, the sensing unit 433 formed on the rotating first operation unit 430 is rotated and at the same time sends a signal for the position movement to the switch (not shown), the control unit (not shown) received the signal of the switch as described above H) is a structure that drives the motor 440 by sending an external signal so that the door can be released or reset.

As shown in FIG. 7B, the second operation part 500 inserts the guide 520 into one side of the housing 510, and supports 530 and the adjuster 540 to the other side of the housing 510. The control spring 550 and the spring 560 are inserted into and coupled in turn.

The second operating part 500 is operated in engagement with the ball gear 427 of the shaft 420, and as shown in FIGS. 7D to 7E, a guide 520 inserted into one side of the second operating part 500. Has a structure that is engaged with the ball gear (427).

The guide 520 and the adjusting device 540 inserted into the second operation part 500 are rectangular grooves 521 formed on the other side of the guide 520 as shown in FIG. 8A. Insertion hole 541 formed on one side of the) is inserted and coupled structure. This is a state in which the contact surface of the groove 521 and the insertion hole 541 is parallel, the entire surface is evenly subjected to the force (elasticity) of the adjustment spring 550, as shown in Figure 8b to 8d. When the force receiving surface of the 521 is inclined, the insertion hole 541 contacts only one side of the groove 521, and the force of the adjustment spring 550 is transmitted only to one side of the inclined surface to provide the groove 521. It has the quality of returning the force side to parallel and restoring the force to the state evenly. That is, when the guide 520 is inclined toward one side, the guide 520 has a property of being returned in parallel by the force of the control spring 550. That is, the guide 520 adjusts the force to rotate. The structure prevents the spherical spring 550 by elasticity.

Combination of the guide 520 and the adjustment device 540 control spring 550 as described above is a structure in which the inclined angle of the guide 520 is not completely separated from the ball gear 427, the ball gear in both directions Limit the range to (427). It is a structure that is suitable for both open and close doors so that the door can be easily attached without any manipulation even when the direction of opening the door is reversed.

The support 530 inserted into the second operation part 500 and the spring 560 in contact with the support 530 have a ball gear when the guide 520 is caught by the ball gear 427. The guide 520 is pushed backward by the force to rotate and the support 530 is also pushed backward so that the spring 560 is compressed, the rotational force of the ball gear 427 by the elasticity of the compressed spring 560 It is a structure to hold.

That is, the stop of the door at the desired opening angle is due to the elasticity of the spring 560 in contact with the support 530, the spring 560 is a spring 560 by a pressure adjustment bolt (not shown) coupled to the back It is a structure that can add and subtract the force of the door and the closing force of the door.

A guide gear 520 and an adjustment tool 540 inserted into the second operation part 500, a coupling operation of the support tool 530 and the spring 560, and a ball gear engaged with the guide tool 520 ( Operation of the 427 is configured to freely set the opening angle when the door is opened, and when the door is opened, the guide hole in the second operation part 500 in the direction in which the ball gear 427 is rotated as shown in FIG. 8B. 520 is inclined, the maximum angle of the inclination is preferably limited to an angle such that the guide 520 is not completely separated from the ball gear 427.

When the door stops after opening, as illustrated in FIG. 8C, the guide hole 520 is slightly inclined in the direction in which the ball gear 427 rotates to contact the ball gear 427, which is coupled to the guide hole 520. The elasticity of the spring 560 by the support 530 in the second operation part 500 maintains the state in which the ball gear 427 does not rotate, and when the door is closed, the ball gear 427 is reversed. When the rotation of the spring 560 by the support 530 in the second operation unit 500 and the ball gear 427 is rotated while the guide 520 also rotates in the direction of the ball gear 427 It is an inclined structure.

The automatic closing operation of the door in case of fire is caused by the combined operation of the first operation unit 430 and the shaft 420 as shown in FIG. 9, and the state in which the door is opened before the fire occurs as shown in FIG. 9A. When the rotation of the ball gear 427 and the shaft gear 422 is stopped by the second operating part 500 or as shown in FIGS. 9B to 9C, after receiving the external signal of the controller by the detector after the fire, the motor ( When the 440 is driven, as the motor gear 442 rotates, the operating gear 434 rotates so that the ball adjusting mechanism 426 inside the shaft 420 operates as the first movement of the first operating part 430. As the ball 424 moves to the contact surface 435 of the part 430 and is pushed up, the ball 424 moves away from its position in the groove of the ball cloud part 423, the ball guide 428, and the ball adjuster 426. If the ball 424 is out of position and the ball gear 427 does not rotate, but the rotation axis 421 is rotated irrespective of the ball gear 427 In addition, since the shaft gear 422 also rotates, the armgear gears 302 are engaged with each other and the door is closed, and the operation process of closing the door due to a fire occurs separately from the second operation part 500. It is made of a structure.

That is, normally, the shaft gear 422 and the ball gear 427 formed on the rotating shaft 421 are operated integrally, but if a fire occurs and the position of the ball control opening 426 inside the shaft 420 is increased, the shaft gear ( 422 and the ball gear 427 is a structure that operates as a separate.

In the above, when a fire occurs and toxic gas or heat is diffused, a signal from a smoke sensor or a signal from a bimetallic temperature switch attached to the bottom of the case 101 is reached and an external signal is output from the controller. It is made of a structure for driving the motor 440. In other words, it detects smoke (toxic gas) or temperature (heat), and closes the door immediately when a fire occurs.

As described above, the present invention can freely adjust the opening angle of the door when the door is opened, and at the same time, it is an automatic door opening and closing device for fire doors in which a fire door is automatically closed by detecting smoke and temperature at the same time, or smoke and temperature. The arm gear 302, the shaft 420 and the first operating part 430, the second operating part 500 is connected to each other to operate, but the shaft 420 and the first operating part 430, the second operation Part 500 is not limited to the accompanying drawings, as those skilled in the art to which the present invention pertains can make various substitutions and modifications without departing from the technical spirit of the present invention.

The present invention relates to an automatic opening and closing device for a fire door, wherein a ball cloud portion is formed at a lower end, a ball adjusting mechanism is built in, and a shaft to which a ball gear is fitted is coupled to a first operating part, and is operated by a bimetallic temperature switch and smoke As the sensor is formed in parallel and connected, the door is closed by smoke or temperature detection in case of fire, so that heat and toxic gases can be cut off at the same time to prevent large casualties. have.

In addition, the shaft in which the ball gear is fitted and coupled is connected to the second operating part to be operated so that the opening angle can be automatically set at any position when the door is opened, so that the opening and closing of the door is easy and the structure is suitable for opening and closing doors. There is an advantage that can be easily attached without any manipulation even in the situation that the door opening direction is reversed when opening and closing.

In addition, the automatic opening and closing auxiliary device for a fire door according to the present invention has an advantage of having a beautiful appearance in accordance with the trend that the door frame is narrowed to the structure attached to the back of the upper door frame.

Claims

In the automatic opening and closing device for fire doors;

The upper fixing plate 201 and the lower fixing plate 210 are fixed up and down inside the case 101; A fixing pin 301, a female gear 302, and a female arm 303 are sequentially coupled to a through hole formed at the center of the upper fixing plate 201; The through hole 202 formed on one side of the upper fixing plate 201 is coupled to the through hole 211 formed in one side of the lower fixing plate 210 by the bearing 410 and the shaft 420 and the bearing 410 'in turn ; The first operating part 430 is coupled to the through hole 211 of the lower fixing plate 210 coupled with the bearing 410 '; A motor gear 442 connected to a lower portion of the motor 440 fixed to the lower fixing plate 210 rotates in engagement with an operation gear 434 formed at one side of the first operation part 430; Automatic opening and closing auxiliary device for a fire door, characterized in that the second operation part 500 is fitted to the other side of the lower fixing plate 210 is coupled to each other.

The method of claim 1;

The upper fixing plate 201 is formed to a certain size longer than the lower fixing plate 210, the upper fixing plate 201 is an automatic opening and closing device for a fire door, characterized in that made of a structure attached to the back of the upper door frame.

The method of claim 1;

The shaft 420 is rotated in engagement with the female gear 302, the shaft gear 422 is formed in the upper portion around the rotation shaft 421, the center of the shaft 420 three cylindrical grooves The concave ball cloud portion 423 is formed, the spring 425, the ball adjusting opening 426 is inserted into the insertion groove formed in the bottom of the rotary shaft 421 in turn, the ball guide 428 is formed in the center The automatic opening and closing device for the fire door, characterized in that the ball gear (427) is fitted to the shaft 420 and the ball cloud portion (423).

The method of claim 1, further comprising:

The first operation unit 430 is fixed to the lower fixing plate 210 is formed by the fixing hole 431 on the other side, the operating gear 434 is formed on one side is engaged with the motor gear 442 to rotate, An arc-shaped contact surface 435 and an insertion groove 432 are formed at the center thereof, so that the ball adjusting tool 426 inserted into the shaft 420 is inserted into the insertion groove 432, and the edge of the contact surface 435. The sensing unit 433 is formed, the automatic door opening and closing assistance device for a fire door, characterized in that made of a structure that can control the movement by giving a signal to the switch according to the moving position.

The method of claim 1, further comprising:

The second operation part 500 is inserted into the guide 520 to one side of the housing 510, and the control opening 540 and the control spring 550 is sequentially inserted into the other side of the housing 510 guide ( The insertion hole 541 formed at one side of the control opening 540 is inserted into the groove 521 formed at the other side of the 520, and the guide hole 520 is caught by the ball gear 427 in both directions. Automatic opening and closing auxiliary device for a fire door, characterized in that consisting of a structure that can freely adjust the opening angle of the door.

The method of claim 5;

The support 530, the spring 560, and the pressure adjustment bolt are sequentially inserted into the other side of the housing 510 of the second operation part 500 so that the guide 520 and the support 530 are backward when the door is opened. Automatic opening and closing device for a fire door, characterized in that the door is stopped in a desired position by the spring 560 elasticity generated in the millier.

In the automatic opening and closing device for fire doors;

Bimetal-type temperature switch is fixed to the case 101, the automatic door opening and closing device for a fire door, characterized in that made of a structure that blocks heat and toxic gases at the same time in the event of a fire with a smoke detection sensor.