WO2010062025A1

WO2010062025A1 - Separate-type fire door closing apparatus for a door check

Info

Publication number: WO2010062025A1
Application number: PCT/KR2009/004992
Authority: WO
Inventors: 문홍식
Original assignee: Moon Hong Sik
Priority date: 2008-11-27
Filing date: 2009-09-04
Publication date: 2010-06-03
Also published as: KR100899783B1

Abstract

The present invention relates to a separate-type fire door closing apparatus for a door check, which operates in connection with the door check and is not integrally installed on the door check but rather installed separately from the door check to enable easy manufacture and installation. The separate-type fire door closing apparatus of the present invention has a sensing means for easy control. The separate-type fire door closing apparatus has a movable nut which moves forwards along with a screw rod to make the space between the movable nut and a chassis narrow, thus increasing the elastic force of a spring and enabling a rotary disk to prevent the chassis from rotating. On the contrary, when the movable nut moves backwards to make the elastic force of the spring weaker than the elastic force of a door check spring, the door check spring pushes a piston to close a fire door.

Description

Detachable fire door closing device of door check

The present invention relates to a device that is installed on the swing door, in particular the fire door (1) so that the fire door (1) can be automatically closed when entering and exiting, more specifically, it is connected to the door check, but is configured as a separate type, not integrated. The present invention relates to a detachable fire door (1) closing device of a door check, which is easy to manufacture and install and is provided with a sensing means for easy control.

In general, the door check is to close the fire door slowly so as to minimize the sound of the fire door hitting the door frame, to prevent the finger from being caught between the fire door and the door frame, and to close the fire door automatically, so that the fire is different in case of fire. It is a device that prevents sticking to.

Normally, such a door check is to pull the fire door (1) to close using the tension of the cylinder or spring, the first step is to adjust the closing speed about half, the second step is to adjust the speed from half to full close.

By the way, the conventional door check has the advantage of automatically closing the door by pulling the fire door, but also has the disadvantage of making the opening difficult.

In order to open the fire door in which the door check is installed, the force of the door check that pulls the fire door as well as the force of the door check that pulls the fire door, ie, the tension of the cylinder or the spring, must be opened to open the fire door.

Therefore, in a building where a fire door is to be opened, remove the door check or fix the door by hanging the fire door.

Recently, a device capable of controlling the door check and opening and closing the fire door 1 according to a user's selection has been developed.

For example, the door check of the Korean Utility Model Registration No. 431191 uses an electromagnet, and is equipped with a locker connected to the electromagnet to allow the fire door 1 to be closed when the user wants, in particular, in the event of a fire.

A hydraulic door check is provided on a door that rotates about a hinge on one side of the wall so that the other side of the first operating rod, one side of which is fixed to the inner surface of the door, is connected to one side of the second operating rod through the rotating shaft, and In the automatic closing device of the door to the other side is engaged with the rack formed on the outer surface of the hydraulic cylinder receiving the spring elasticity by coupling the gear through the shaft, the hydraulic cylinder is to prevent the movement selectively by the rocker moving up and down AC power or internal battery power from the outside is supplied directly to the electromagnet through the switch contact point, and to the fire detection sensor through the contact point. Ram attached directly to one side of the door when supplied to the electromagnet through a backflow prevention diode It is a configuration to be supplied with a pro.

However, these devices have some problems.

First, the rocker, that is, the electromagnet, controls the hydraulic cylinder directly, so that a large capacity electromagnet is needed to overcome the pressure of the hydraulic cylinder, and as the locker is installed through the door check, the confidentiality of the hydraulic door check is required. It is also difficult to do, and there is a problem that frequently occurs.

Second, there is a problem that the rocker for cracking down the hydraulic cylinder may be bent or bent by hydraulic pressure to lose the original function of closing the fire door 1.

Third, such a device has a problem that the management room or the person who does not know the presence or absence of fire or the opening and closing state of the door.

Fourth, there is a problem that the above-mentioned device is manufactured integrally with a device such as a door check and a rocker for controlling it.

In other words, such a device is assembling as well as locker and the like in the manufacturing process of the door check, as well as manufacturability and workability significantly reduced, there is a problem that the entire door check must be replaced in case of failure.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is, first, to provide a detachable fire door closing device of a door check that is easy to install and manufacture and excellent in workability by being manufactured and installed separately from the door check. .

Another object of the present invention is to provide a detachable fire door closing device of a door check having a simple structure and excellent efficiency by intermittent door check by using the spring force of the spring, regardless of the installation position of the closing door device.

Still another object of the present invention is to provide a detachable fire door closing device of a door check that allows a user to arbitrarily maintain an opening state of a fire door and automatically close the opened fire door in an emergency such as a fire occurrence.

The present invention has a door check spring for elastically supporting the piston in the casing, the gear is formed on the bottom surface of the piston, the door is provided with a driven gear meshing with the gear on the outer periphery of the drive shaft through the casing A check means comprising: a connecting means having a shaft on one side wall of the bracket and having a central shaft connected to the shaft through a center on an opposite side thereof; An electric link for transmitting a rotational force of the door check drive shaft to the shaft rod; A closing means fitted to a central shaft of the connecting means and interlocked with the driving shaft, wherein the stop roll mounted on the vehicle body moves and interrupts rotation of the rotating plate; An elastic adjustment means installed adjacent to the closing means and moving the nut coupled to the screw rod forward and backward according to the rotation of the screw rod; A spring installed between the moving nut of the elasticity adjusting means and the vehicle body of the closing means to push the vehicle body according to the movement of the moving nut; To be configured as; a motor for rotating the screw rod of the elasticity adjusting means,

When the moving nut moves forward along the screw rod, when the distance between the car body and the vehicle body becomes narrow, the elastic force of the spring increases to prevent the rotation plate from rotating the car body. On the contrary, the moving nut moves backward so that the elastic force of the spring moves to the door check spring. When the weaker than the elastic force of the door check spring has a technical feature characterized in that the fire door can be closed by pushing the piston.

In another aspect, the present invention has a technical feature that can be interlocked by the electric link and the connecting means in a state in which the closing device and the door check is composed of the closing means and the elastic control means and the spring and the motor.

Second, the present invention can be conveniently installed according to the position and space of the fire door as the door check and the closed door device is configured separately and each is installed separately.

Third, the closing device of the present invention by adjusting the elastic force of the spring by using a moving nut moving by the motor to enable the closing and opening the door is simple in structure and convenient to manufacture.

Fourth, the door door device of the present invention is provided with a connection means for connecting the door check and the closing device, the connection means is an invention excellent in assembling ability to transmit the rotational force of the door check with the correct operation.

1 is a front view of a fire door showing a state mounted on the present invention,

Figure 2 is a front view showing a state in which the door closing device and the door check connected to the present invention,

Figure 3 is a front view showing a part of the invention closing device,

4 is a plan view of the closing device of the present invention,

5 is a front sectional view of a connecting means applied to the closing device of the present invention,

Figure 6 is an exploded perspective view of the connecting means applied to the closing device of the present invention,

Figure 7 is an enlarged view of the main part of the closing device of the present invention

8 is a schematic view for explaining the operation of the closing device of the present invention,

Figure 9 is a sectional view showing the inside of the door check to which the present invention the closing device is applied.

* Explanation of symbols for the main parts of the drawings

1: fire door 10: door check

14: piston 16: drive shaft

18: door check spring 100: closed door device

200: closing means 220: rotating plate

260: stop roll 264: body

300: elastic adjustment means 320: moving nut

400: motor 500: spring

600: connecting means 610: central axis

620: shaft 650: electric link

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

First, the attached Figure 1 is a front view of the fire door showing a state mounted on the present invention, Figure 2 is a front view showing a state in which the door closing device and the present invention is connected, Figure 3 is a part of the invention closed door device Front view shown.

4 is a plan view of the closing device of the present invention, Figure 5 is a front sectional view of the connecting means applied to the closing device of the present invention, Figure 6 is an exploded perspective view of the connecting means applied to the closing device of the present invention.

In addition, Figure 7 is an enlarged view of the main portion of the closing device of the present invention, Figure 8 is a schematic diagram for explaining the operation of the closing device of the present invention, Figure 9 is a cross-sectional view showing the interior of the door check to which the closing device of the present invention is applied. will be.

In the drawings, the door check to which the present invention is applied takes the structure as shown in FIG. 9, but it is understood that this is an example and may be applied to a door check having another structure and shape.

The closing device of the present invention is configured to separate the door check 10 and the closing device 100, respectively, for example, the door check 10 is a fire door (1), the closing device is the main technology of the present invention is installed in the door frame In principle, it is connected. Of course, you can install the reverse.

The door check 10 is basically the same structure as in FIG.

That is, a piston 14 is provided inside the casing 12, and the piston 14 is supported by the door check spring 18 to limit movement, but the gear 14a is disposed on the bottom surface of the piston 14. The configuration is equipped.

In addition, the bottom of the piston (14) is provided with a drive shaft (16), which is provided with a driven gear (16a) to engage the gear on the outer periphery of the drive shaft is to move the piston when the drive shaft rotates.

In other words, in the state of the door check 10 in the drawing, when the fire door 1 is opened with the fire door 1 closed, the drive shaft 16 rotates to move the piston 14 and pushes the fire door 1. That is, the door check spring (18) closes the fire door (1) by the piston when the force holding the fire door (1) is released after entry and exit, and the drive shaft is operated in connection with the connecting means described later. .

The closing device 100, which can be referred to as the core technology of the present invention, is connected to the door check 10 and controls the rotation of the door check 200, and when the fire occurs by retreating the vehicle body of the closing door 200. Elastic control means 300 to close the fire door (1), the motor 400 to operate the elastic control means 300, and a support spring 500 for elastically supporting the closing means 200 by elastic force It is composed of

Another core technology of the connection means 600 of the present invention is to connect the closing device 100 and the door check 10 to enable interworking, which will be described again.

First, the closing means 200 is provided with a rotating plate 220 that is fitted to the central axis 610 of the connecting means 600, which will be described later, gear teeth 222 on both sides or one side of the rotating plate 220 Is formed.

In other words, the gear teeth 222 are protruded radially around the central shaft hole 224 as shown in the figure, and the gear plate 240 is engaged with the gear teeth 222.

The gear plate 240 is fixed to the central axis 620 is configured to interlock with the central axis, teeth 242 meshing with the gear teeth 222 is formed on the front to rotate the rotational force of the central axis 610 It serves to deliver to the rotating plate (220).

In this case, the gear plate 240 serves to cushion the mechanical shock that may occur by directly fixing the rotating plate 220 to the central axis 620.

On the outer circumference of the rotating plate 220, the locking jaw 226 protrudes outwardly, and the locking jaw 226 is formed in a "F" shape as shown in the figure, and the rotation is caught by the stop roll 260 which the horizontal plane will be described later. By limiting the door and the closing door of the fire door (1) is to be limited.

The stop roll 260 is installed and moved inside the vehicle body 264 having a "⊃" shape, and an auxiliary roll 262 is provided behind the vehicle body 264.

In other words, a rotary shaft 266 penetrating the vehicle body is formed in each of the front and rear of the vehicle body 264, and two rolls, that is, a stop roll 260 on the front side, and an auxiliary roll 262 on the rear side, respectively. In this configuration, four rolls are provided in one vehicle body 264.

However, this configuration is one example, and may be less than the actual four or as many as six, eight.

The vehicle body 264 provided with a roll moves along the guide space 282 penetrating the center portion of the guide body 280, and the guide body 280 is moved to the base plate 20 of the door check 10. It is a fixed installation.

On the other hand, the back of the vehicle body 264 is provided with a support plate 268, the spring 500 which will be described later to the support plate 268 is configured to move elastically.

The elastic adjustment means 300 is connected to the motor 400 to rotate and move the moving nut 320 forward and backward and to control the door check by adjusting the elasticity of the spring 500, the screw rod 310, Moving nut 320 and the adjusting body 330 is installed.

The adjuster 330 is fixed to the base plate 20 similarly to the light fixture 280, and provided with a moving space 332 penetrating the center portion, the moving nut 320 is moved forward and backward along this space. This is the configuration that allows it.

The screw rod 310 is connected to the motor to rotate and move the screw coupled to the moving nut, the moving nut 320 is formed in a substantially square shape to move without rotating with the screw rod. Of course, the movement space 332 is also the same shape as the movement nut.

Sensing means 700 are installed on each of the front and rear sides of the upper and lower plates of the adjusting body 330. The sensing means 700 includes a front side micro switch 710 which is installed adjacent to the rotating plate 220, and the adjusting body 330. It consists of a rear micro switch 720 is installed on the upper surface.

In addition, a long hole 334 is formed in the center of the upper plate of the adjuster 330, the upper surface of the moving nut 320 is provided with a touch rod 322 which is installed through the long hole 334 with the movement of the moving nut The touch rod 322 is moved to inform the position by touching the sensing means, that is, the rear micro switch.

The motor 400 is configured to move the moving nut by rotating the screw rod 310 by the forward and reverse rotation motor, the spring 500 is installed between the moving nut 320 and the support plate 268 and the elastic I support it.

The connecting means 600, which enables separate installation of the closing device and the door check, includes a central shaft 610, a shaft rod 620, a bracket 630, and a bearing part 640.

First, the bracket 630 has a "∪" shape having both side walls 632 and a bottom 634, and holes 636 in which a central axis and a bearing part are fitted are formed in each of the side walls 632, and a base is formed at the bottom. The fixing bolt 634a is formed to be fixed to the plate 20.

Here, the rotating plate 220 and the gear plate 240 is located between both side walls 632 of the bracket, the central shaft 610 is installed through these, between the head 612 of the central shaft and the rotating plate 220 A bearing part 640 is installed in the bushing or a bearing to smoothly rotate the central shaft 220, but a touch plate 638 is provided between the bearing part 640 and the inner surface of the head 316. The front micro switch of the sensing means 700 is touched.

The shaft rod 620 is installed through the hole of the right wall 632 of the bracket 630, as shown in the drawing, the stepped portion 622 is provided to prevent the separation and to support the gear plate against each other. .

In addition, a female screw portion 624 is formed in the center of the stepped portion 622 in the longitudinal direction so that the central axis can be assembled thereto.

In other words, the central shaft 610 is a male screw portion formed at the end by sequentially passing through the touch plate 638 and the bearing portion 640, the rotating plate 220 and the gear plate 240 from the left wall in the figure 614 is fastened to the female threaded portion 624 of the shaft 620 is assembled.

On the other hand, the shaft 620 and the drive shaft 16 of the door check 10 is connected by an electric link 650, the electric link 650 is the main link 652 and the drive shaft connected to the shaft 620 An auxiliary link 654 is connected to the (16), the auxiliary link 654 is configured in the form of a double pipe to enable the length adjustment.

Reference numeral 800, which is not described in the drawings, controls the forward and reverse rotation of the motor as a control unit, and the control unit may be associated with a guard room and a management room of each building.

Next is a description of the operation process of the present invention made of such a configuration.

First, it is the operation process of the present invention when normally opening and closing the fire door (1).

The closed door device 100 of the present invention is fixed to the door frame of the fire door (1) as shown in the drawing, the door check 10 is a fire door in the state connected by the electric link 650 in a state fixed to the fire door (1) When 1) is opened, the electric link 650 rotates the drive shaft 16 of the door check and the shaft bar 620 of the connecting means.

In other words, when the person opens the fire door 1 and exits or enters the building, the main link 652 and the auxiliary link 654 are opened, and the main link 652 rotates the drive shaft 16 to rotate the piston 14. Moving the auxiliary link 654 rotates the shaft 620 to rotate the central axis 610 connected thereto.

When the central shaft 610 is rotated, the gear plate 240 fixed to the central axis 610 is rotated, the rotating plate 220 engaged with the gear plate 240 and the teeth is rotated, and the touch plate 638 is rotated By touching the front micro switch 710, a signal indicating that the fire door 1 is open is output.

On the other hand, this state, that is, the movement nut 320 of the resilient adjustment means 300 of the closing device 100 in the usual state is located in the rear, the space between the support plate 268 and the state of the spring 500 for supporting them The elastic force is weakened.

After the fire door 1 is opened, when the person releases the fire door 1, the piston 14 moves at the same time, and the elastic force-reinforced door check spring 18 pushes the piston 14 and moves the drive shaft ( 16 rotates in the opposite direction as before and narrows the electric link 650 so that the auxiliary link 654 reversely rotates the shaft 620, the center shaft 610 and the gear plate 240 and the rotating plate as before. Rotate 220.

At this time, the rotating plate 220 is rotated while the locking jaw 226 pushes the stop roll 260, which is because the locking jaw pushes the stop roll because the door check spring 18 is stronger than the spring 500 of the closing device. I can make it.

Of course, the touch plate 638 is also rotated to touch the front side micro switch 710 so that the fire door 1 is closed.

The following is a process to maintain the opening of the fire door (1).

When the person or guard connects the fire door (1) to the guard room, the management room in the open state or operates the control panel installed separately, the control unit 800 installed here rotates the motor 400 so that the screw rod 310 connected thereto is rotated. do.

When the screw rod 310 rotates, the moving nut 320 screwed thereto moves forward along the moving space 332 formed in the adjusting body 330, and the distance between the supporting plate 268 and the supporting plate 268 decreases. The elastic force of the spring 500 is gradually strengthened and pushes the support plate 268.

Therefore, the body 264 integrally formed with the support plate 268 starts to move, and the roll ie the stop roll 260 and the auxiliary roll 262 roll along the guide space 282, and the stop roll 260 is horizontal to the locking jaw. It is located at.

As the movement of the moving nut 320 continues, the elastic force of the spring 500 is strengthened, and the force is stronger than that of the door check spring 18 so that the rotating plate cannot be rotated so that the open state of the fire door 1 is maintained. .

On the other hand, when the moving nut 320 reaches the end of the moving space, the touch rod 322 touches the micro switch 720 and at the same time the motor 400 stops.

It is a process of automatically closing the fire door (1) in the event of an emergency, that is, a fire when the fire door (1) is open.

When a fire occurs in the state in which the fire door 1 is opened, an alarm sounds, and the controller 800 outputs a reverse rotation signal of the motor 400 according to the alarm sound or according to an input signal of a guard or an occupant.

When the motor 400 rotates in reverse, the moving nut 320 moves to the rear side and opens a distance between the supporting plates, thereby gradually decreasing the elastic force of the spring, thereby increasing the elastic force of the door check spring 18. When 14 is pushed out, the rod 16 rotates to rotate the rotating plate 220 while pushing the stop roll 260 as described above so that the fire door 1 is closed.

Claims

In the door check having a door check spring for elastically supporting the piston in the casing, the gear is formed on the bottom of the piston, the driven gear is engaged with the gear on the outer periphery of the drive shaft through the casing ,

A connecting means having a shaft on one side wall of the bracket and having a central shaft connected to the shaft through a center on an opposite side thereof;

An electric link for transmitting a rotational force of the door check drive shaft to the shaft rod;

A closing means fitted to a central shaft of the connecting means and interlocked with the driving shaft, wherein the stop roll mounted on the vehicle body moves and interrupts rotation of the rotating plate;

An elastic adjustment means installed adjacent to the closing means and moving the nut coupled to the screw rod forward and backward according to the rotation of the screw rod;

A spring installed between the moving nut of the elasticity adjusting means and the vehicle body of the closing means to push the vehicle body according to the movement of the moving nut; To be configured as; a motor for rotating the screw rod of the elasticity adjusting means,

When the moving nut moves forward along the screw rod, when the distance between the car body and the vehicle body becomes narrow, the elastic force of the spring increases to prevent the rotating plate from rotating the car body. On the contrary, the moving nut moves backward so that the elastic force of the spring moves to the door check spring. Detachable fire door closing device of the door check, characterized in that when the weaker than the elastic force of the door check spring to push the piston to close the fire door.
The method of claim 1, wherein the closing means, the resilient adjustment means, the spring and the motor is installed in the door frame to intermittent the rotational force of the door check installed on the fire door by the electric link to keep the door open or to close automatically Detachable fire door closing device of the door check, characterized in that.
According to claim 1, wherein the connecting means is provided with a shaft rod on one side wall of the bracket of the "∪" shape, the opposite side wall and a central axis penetrating through the central portion, the threaded portion is provided at the end of the central shaft, the screw portion Separation fire door closing device of the door check, characterized in that the shaft to be coupled to the shaft to be rotated at the same time as the central shaft.
According to claim 1 or 3, wherein the gear plate and the rotating plate is fitted to the central axis of the connecting means, the rotating plate is loose, the gear plate is fixed by interference fit or key coupling, teeth on each side of the gear plate and the rotating plate Detachable fire door closing device of the door check, characterized in that the interlocking is formed.
According to claim 4, wherein the central axis of the connecting means is provided with a touch plate inside the head to rotate like a central axis, and the bearing portion is provided to smoothly rotate the central axis between the touch plate and the rotating plate. Detachable fire door closing device of door check.
The method according to claim 1 or 5, wherein a micro switch is installed adjacent to the rotating plate so that the touch plate provided on the central axis rotates along with the central axis, and the opening or closing signal of the fire door can be output by touching the micro switch. Detachable fire door closing device of the door check, characterized in that.