KR101900844B1 - smoke extraction apparatus for a fire door - Google Patents

Abstract

The present invention relates to a fireproof door and, more specifically, to a smoke control apparatus for a fireproof door which can prevent smoke from rapidly spreading through a gap when the gap is caused between the fireproof door and a door frame as the shape of fireproof door is deformed due to hot temperature in case of fire. The fireproof door has one side end capable of opening and closing while rotating by being hinged to the fireproof door. Moreover, the smoke control apparatus comprises: a first member installed on an upper front surface of the other side end of the fireproof door and having a lock pin protruding from a vertical part in the horizontal direction; and a second member installed to correspond to the first member on an upper end of the door frame where the fireproof door is installed and having a pin hole into which the lock pin is inserted.

Description

[0001] The present invention relates to a smoke extraction apparatus for a fire door,

The present invention relates to a fire door, and more particularly, to a fire extinguishing device for a fire door so as to prevent a rapid diffusion of smoke through a gap due to a gap between the door frame and a shape of a fire door due to high temperature during a fire Technology.

In the event of a fire, personal injury caused by a fire is not only directly affected by the heat generated by the fire (fire) but also lead to asphyxiation due to difficulty in breathing due to the smoke diffused into the building, There was a problem.

In other words, there are many cases where a large number of victims come out from a fire in a high-rise building or a large building. Since many of the victims are identified as the main cause of death due to smoke, there is a need to effectively prevent the spread of toxic smoke following the fire something to do.

The fundamental reason that smoke from a building's fire acts as a very dangerous factor to safety of life is that the smoke is diluted by the air mixed with the combustion process and is less dangerous than the gas immediately after the flame or combustion, The most significant cause of human life risk is the rapid rate of smoke spreading in buildings compared to flames.

Therefore, it is essential to take measures to control smoke and heat and to take technical measures in order to promote safety of life in a building fire. As one of the technical measures, in general, buildings are moved to another space in case of fire, so that the fire area is enlarged or the smoke generated by the fire is prevented from entering or diffusing into another area. I have installed a fire door.

In the conventional fire door, it is necessary to always close the fire door to block smoke or heat. Therefore, door closers are installed in the fire door and the door frame to keep the fire door always kept closed. However, It is fixed with water and used in an open state.

In recent years, a variety of fire doors have been supplied due to the development of materials having excellent heat insulation characteristics, but the damage caused by smoke is not reduced in the case of fire.

In other words, despite the existence of a fire door, it can not be said that the spread of smoke caused by the fire can not be prevented properly.

Since the fire door is basically installed so that it can be opened and closed, it is hinged to one side of the door frame, and the other side has no restraining means other than a handle used for opening and closing the door.

When a fire is generated and a high temperature is formed due to such a basic installation structure of a fire door, which is a kind of door, the heat is directed to the upper part rather than the lower part, so that a lot of thermal deformation occurs on the upper side of the door, The uppermost part of the other side of the state must be deformed most.

That is, since the other side of the upper end of the fire door is most severely deformed due to thermal deformation, a gap is formed between the door and the door so that the smoke is rapidly moved and diffused.

[0004] In the prior art related to the present invention, Korean Patent No. 10-0526151 entitled "Smoke and heat shielding device for fire doors" is known, and FIG. 1 is an exploded perspective view of a smoke and heat shielding device for a fire door.

In the prior art, a support groove 13 is formed at both ends of the lower end to fit the inner and outer panels 61 of the fire door, a guide rod 11 which is installed in the inner ceiling so as to face downward and is fitted with the pressure spring 12, A housing body (10) comprising a fire door fixed shaft (20) vertically driven by an actuator (21) having an input / output unit (22); A screen movable member 30 having a plurality of guide holes 35 and a rectangular hole 34 formed on an upper surface thereof and a blocking screen 31 extending downwardly from the other side downwardly to form a fitting portion 33 at a lower end thereof, ; A moving gear 25 provided inside one opening 36 of the screen movable member 30 and adapted to be rotated by a rack shaft 23 of a fire door fixed shaft 20 installed at one end of the housing body 10, Wow; A slide piece 40 having a plurality of elongated holes 42 to fit the guide rod 11 of the housing body 10 and having a movable projection 41 to move the screen movable member 30 up and down on the upper surface, and; The screen moving member 30 is positioned inside the housing body 10 and the slide piece 40 is positioned inside the screen moving member 30 so that the screen moving member 30 is lifted along the door of the fire door And is lowered at the lower end of the fire door (60).

The prior art also has a smoke and heat shielding device at the lower end of the fire door. As mentioned above, there is a problem that the spread of smoke through the upper side of the fire door can not be prevented in actual fire.

Korean Patent No. 10-0526151

Accordingly, it is an object of the present invention to provide a fire door having a smoke-inducing function for solving the problem that a gap with the door frame is generated due to thermal deformation at the upper portion of the fire door when an actual fire occurs.

In particular, the present invention provides a fire door having a smoke-inducing function capable of suppressing thermal deformation of a fire door that is concentrated at the upper portion of the fire door.

The present invention provides a fire prevention door for a fire door that is openable and closable while being hingedly connected to a hinge at one end thereof. The fire door is provided at the other end upper end front portion of the fire door, A first member provided with a lock pin protruding from the first member; And a second member provided at an upper end of the door frame on which the fire door is installed, the second member being provided to correspond to the first member and having a pin hole into which the lock pin is inserted.

Preferably, the smoke prevention device for a fire door includes an opening preventing means for preventing the fire door from being opened due to a difference in pressure between inside and outside due to a fire when the first member and the second member are restrained in a vertical direction .

Preferably, the opening prevention means is inserted into a recess formed in the upper surface of the horizontal part of the first member and a mounting hole formed in the lower surface of the second member, and has magnetic property, And a heat sensitive holder in which when the heat is received by the fire, the magnetism is lost and the lowered part falls down and the lower end part is seated in the recessed groove.

Preferably, the thermal sensitive holder comprises a head, which is a permanent magnet, and a metallic body to which the head is coupled at an upper end, and the head is magnetically coupled to the upper surface of the mount.

Preferably, the second member is provided with a heat conduit connected to the head coupled to the upper surface of the mount, so that the heat of fire can be transmitted to the head quickly.

Preferably, at least one rupture induction groove is formed in the front edge of the depression formed in the horizontal part of the first member.

The smoke inducing apparatus for a fire door according to the present invention does not hinder the opening and closing of the fire door at all times, and when the fire occurs, the fire door is most likely to be deformed due to heat caused by fire when the fire door is closed There is no gap between the door frame and the door frame, so that the diffusion of smoke can be suppressed.

1 is an exploded perspective view of a smoke and heat shielding device for a fire door according to the prior art;
Fig. 2 is an installation view of a smoke control device for a fire door according to a preferred embodiment of the present invention. Fig.
3 is an exploded perspective view of a main configuration of a smoke control device for a fire door.
Fig. 4 is a state change diagram of the smoke control device for a fire door before and after operation. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a smoke detection device for a fire door according to the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the drawings and detailed description thereof illustrate one feasible example according to the technical idea of the present invention, and the technical scope of protection of the present invention is not limited thereto.

FIG. 2 is an exploded perspective view of a main configuration of a smoke control device for a fire door, FIG. 4 is a graph showing a state change state before and after the operation of the smoke control device for a fire door, .

As shown in the drawings, the smoke-inducing device A for a fire door according to the present invention is installed in the fire door 10 and can prevent rapid spread of smoke when a fire occurs, .

The fire door 10 is installed in the door frame 20 and is connected to the door frame 20 by a plurality of hinges (not shown) along one side of the fire door 10 to be opened and closed while being rotated.

A smoke control apparatus A for a fire door according to the present invention includes a first member 100 and a second member 200. The first member 100 is installed in the fire door 10 and the second member 200 Is installed at the upper end of the door frame 20.

Preferably, the first member 100 is installed at the other end upper end front portion of the fire door 10, and is formed into a cube shape. Specifically, the first member 100 is formed in a shape in which the vertical part 110 and the horizontal part 120 are connected to each other, so that the back surface of the vertical part 110 is coupled to the fire door 10, The lock pin 101 is provided so as to protrude in the horizontal direction from the front surface of the vertical part 110. [

The second member 200 provided at the upper end of the door frame 20 of the fire door 10 in correspondence with the first member 100 is in the form of a substantially rectangular block and the lockpin 101 A pinhole 210 is formed. In this embodiment, the lock pin 101 has a circular column shape. The pin hole 210 is basically shaped like a circle, and the pin hole 210 is formed in a circular shape. The pinhole 210 is formed to have a size slightly larger than the lock pin 101. As shown in FIG. In other words, it is preferable that the pinhole 210 be a long track-shaped hole considering the rotation angle.

When the fire door 10 is closed, the lock pin 101 of the first member 100 is fitted in the pin hole 210 of the first member 100 installed on the door frame 20. In this state, The locking pin 101 is inserted into the pinhole 210 when the door is opened due to thermal deformation at the upper end of the fire door 110 so that the fire door 10 is prevented from being deformed, The gap between the upper end and the upper end is not increased, and the diffusion of the smoke can be suppressed.

Meanwhile, the smoke prevention device A for a fire door according to the present invention may be provided with an opening prevention means L. When the fire is generated in the closed state of the fire door (10), the opening prevention means (L) functions to prevent the fire door from being pivotally opened and deformed due to a pressure difference between the inside and the outside of the fire door will be.

Specifically, when the room temperature suddenly rises due to a fire, the first member 100 and the second member 200 are constrained in the vertical direction so that the fire door 10 is opened or deformed outward .

The opening prevention means L includes a depression groove 102 formed on the upper surface of the horizontal part 120 of the first member 100 and a thermal sensitive holder 220 provided on the second member 200.

The recessed groove 102 is formed on the upper surface of the horizontal part 120 and is formed to be recessed to a predetermined depth from the upper surface of the horizontal part 120 away from the lock pin 101 so as not to interfere with the lock pin 101.

A mounting hole 230 is formed from the lower surface of the second member 200, and the thermal sensitive holder 220 is inserted into the mounting hole 230. The thermal sensitive holder 220 has a magnetic property and is normally located inside the mounting hole 230. When the thermal sensitive holder 220 receives heat due to fire, the magnetic susceptor 220 reads the magnetic property and falls downward. And the upper end of the heat sensitive holder 220 is inserted into the mounting hole 230, thereby preventing the fire door 10 from rotating.

The thermal sensitive holder 220 may be composed of a head 221 and a body 222. The head 221 may be a permanent magnet such as neodymium. The body 222 can be coupled by magnetic force and the head 221 is magnetically coupled to the upper surface of the mounting hole 230. [

The head 221 is a permanent magnet, which usually has a characteristic of being magnetized but loses its magnetism when it receives heat due to fire and becomes a high temperature state.

Since the thermal sensitive holder 220 can be dropped by losing its magnetic property due to heat generated in a fire, the thermal path 240 connected to the magnetic head 221 is formed on one side of the second member 200 It is preferable that the heat can be transmitted to the head 221 through the heat transfer path 240 more quickly.

On the other hand, when the thermal sensitive holder 220 is dropped by heat and is placed in the recessed groove 102 of the first member 100 at the time of a fire, the fire door 10 is not opened. However, if a person has to open the door (10) for evacuation, the door must be opened. In other words, if someone who can not evacuate is forced to open the door, the door must be opened.

In order to allow the fire door 10 to be opened when a person intends to open the fire door 10, it is necessary to open the front door edge of the recessed groove 102 formed in the horizontal part 120 of the first member 100 So that at least one rupture induction groove 103 is formed.

Since the breakage inducing groove 103 is formed at the front edge of the recessed groove 102, the front edge is not broken from the breakage inducing groove 103 by the pressure difference between the inside and the outside of the fire door. However, The front end edge is broken by being bent or broken from the door 103, so that the fire door which was not opened by the heat responsive holder 220 is opened.

As described above, the smoke prevention device for a fire door according to the present invention is installed on the upper side of a fire door which forms a passage through which smoke is most easily deformed due to rising heat, It is advantageous to prevent the spreading of the smoke due to the pressure difference, thereby ensuring sufficient time for people to evacuate the smoke.

The smoke inducing apparatus for a fire door according to the present invention can be applied to a fire door to help minimize the damage of the fire.

A: Smoke control device for fire doors
10: Fire door
20: door frame
100: first member
110: Vertical part 120: Horizontal part
101: lactopine 102: recessed groove
103:
200: second member
210: Pinhole
220: thermal sensitive holder 221: head
222: Body
230: Mounting hole
240: heat pipe
L: Opening prevention means

Claims (6)

A fire door having one end connected to a hinge and capable of opening and closing while being rotated,
A first member installed at a front upper end portion of the other end of the fire door, the lock member having a lock pin protruding in a horizontal direction from a vertical part;
And a second member provided at an upper end of the door frame on which the fire door is installed to correspond to the first member and having a pin hole into which the lock pin is inserted,
When the temperature rises due to fire, the first member and the second member are restrained in the vertical direction, thereby preventing the fire door from being opened due to a difference in pressure between inside and outside due to fire,
The opening prevention means is inserted into a recess formed in the upper surface of the horizontal part of the first member and a mounting hole formed in the lower surface of the second member and has magnetic property and is normally located inside the mounting hole And a heat sensitive holder in which when the heat is received due to the fire, the magnetism is lost and the lowered part falls down and the lower end is seated in the recessed groove,
Wherein at least one rupture induction groove is formed in a front edge of the depression formed in the horizontal part of the first member. delete delete The method according to claim 1,
The heat sensitive holder includes:
A head which is a permanent magnet and a metallic body to which the head is coupled at an upper end, and the head is magnetically coupled to the upper surface of the mounting hole. 5. The method of claim 4,
Wherein the second member is formed with a heat conduit connected to the head coupled to the upper surface of the mount so that the heat can be quickly transferred to the head during the fire.


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