KR101985631B1 - Device for preventing thermal deformation of fire door - Google Patents

Abstract

The present invention relates to a device for preventing thermal deformation of a fire door, which prevents flames from being spread outdoors when generating a fire to be possible to prevent a fire door from being twisted by high heat so as to improve fire resistance property. The device for preventing thermal deformation of a fire door includes: a main body unit installed on a fastening groove formed on one side of a fire door frame and forming a penetration hole in a vertical direction; a bimetal support unit in which one side is fixedly installed on the main body unit, in which the other side is bent in a direction of the penetration hole to cover a lower side entrance of the penetration hole, and allowing a shape to be deformed in a direction where the other side is far from the penetration hole in accordance with increase of temperature; and a fixing unit in which a lower portion is supported by the other bent side of the bimetal support unit and in which the other end is rotationally installed on one side of the penetration hole.

Description

Thermal deformation prevention device of fire door {DEVICE FOR PREVENTING THERMAL DEFORMATION OF FIRE DOOR}

The present invention relates to a heat deformation preventing device of a fire door, and more particularly, a fire door implemented to prevent a fire door from being twisted by a high temperature in order to improve the fire resistance by blocking a shape in which a flame spreads outdoors when a fire occurs. It relates to a heat deformation preventing device of.

In general, a fire door is a structure installed at an entrance or an emergency exit to prevent a fire from spreading in a house, apartment, factory, office, prefabricated temporary building, etc., and a rectangular door frame installed through a wall and rotated between the door frames. It is a structure consisting of doors joined by means (eg hinges, etc.).

In order to provide insulation performance, such door frames and doors are filled with a heat insulating material inside, and the outermost part is made of a metal plate. However, when a closed room temperature increases in the event of a fire, the heat insulating material is first burned and the gas is burned. As it is released, torsion occurs in areas with weak strength while expanding due to heat and pressure.

In particular, the torsion occurs more severely on the opposite side of the hinge than the part where the hinge is coupled to the door frame, in which case the gasket inserted into the inside of the door frequently occurs, and a gap is formed between the door frame and the door, so that the flame with harmful gas It spreads to the outside and causes damage to life.

In order to solve this cause, the fire door regulations specify fire doors that do not deform or break at high temperatures below 965 ℃, but in reality, they do not pass the rules.

That is, the existing fire doors as described above have a problem that harmful gases and flames may leak to the outside through the gap as the upper edge portion is twisted due to the high heat caused by the fire.

Korean Patent Registration No. 10-1638116 Korean Patent Registration No. 10-1649282

One side of the present invention is to prevent the fire door is twisted by the high temperature of the room by fastening the fixed door to the lower direction from the fire door frame to lower the fire door in order to improve the fire resistance by blocking the shape that the flame spreads to the outside when the fire occurs It is to provide a thermal deformation prevention device of the fire door to prevent that.

In addition, by using the bending property of the bimetal according to the temperature rise, the support part supporting the fixing part for fastening the fire door by itself is bent to drop the fixing part when the fire occurs. Provided is a thermal deformation preventing device of a fire door that can be rotated to be supported.

And, the technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

An apparatus for preventing heat deformation of a fire door according to an embodiment of the present invention includes: a main body part installed in a fastening groove formed on one side of a fire door frame and forming a through hole in an up and down direction; A bimetal support having one side fixed to the main body, the other side bent in the through hole direction to cover the lower inlet of the through hole, and the other side deformed in a direction away from the through hole as the temperature increases; And a fixing part of which a lower end is supported by the other side of the bimetal support and the other end is rotatably installed on one side of the through hole.

In one embodiment, the fixing part is deformed in a direction away from the through hole according to the rise in temperature when the other side of the bimetal support is opened, when the lower inlet of the through hole is opened, the front end falls in the downward direction and the fastening The fire door may be inserted into a fixing groove formed at one side of the fire door facing the groove.

In one embodiment, the body portion, the body body is formed in a shape corresponding to the shape of the fastening groove; A first through hole penetrating the body body in a vertical direction in a size corresponding to the shape of the fixing part; And a second through hole formed through the upper end of the main body in the left and right direction so as to insert the fastening bolt for fastening the other end of the fixing part in the left and right direction.

In one embodiment, the fixing unit, the other end is fixed to the upper end of the upper through hole of the first through hole is rotated; A fastening hole penetrating in the left and right direction at the other end of the fixed body; And a fastening bolt inserted into the second through hole and the fastening hole so that the fixing body may be installed at the other end of the first through hole.

In one embodiment, the fixed body may be formed to a predetermined length so that the front end can be inserted into the fixing groove when falling in the downward direction.

In one embodiment, the fastening bolt, the head is exposed to the outside of the body body; A neck extending from an inner side of the head to an inner space of the first through hole so as to be inserted into the fastening hole; And a fastening screw extending from an end of the neck and forming a thread along an outer surface to be fastened to a screw thread formed along an outlet inner surface of the second through hole.

In one embodiment, the fixed body, the front end can be elevated to the inner space of the fastening groove in accordance with the rotation of the head to open the fire door.

In one embodiment, the head may be inserted into an opening formed to be open from the fastening groove to the outside.

In one embodiment, the head may be formed in the exposed surface grooves corresponding to the shape of the driver so that the user can rotate using a screw driver.

In one embodiment, the head is inserted into an open hole formed to be opened outward from the fastening groove, one side may be exposed to the outside through the opening hole so that the user can rotate by hand.

In one embodiment, the bimetal support may be formed in a predetermined length so as to determine the degree of warpage due to heat conduction, and may form a heat conduction test pin at the front end for receiving heat supplied from the outside.

In one embodiment, the bimetal support portion, the other side bent may cover some or all of the lower inlet of the through hole.

According to one aspect of the present invention, a gap is generated between the fire door and the fire door frame due to the twisting of the fire door can prevent the leakage of flames and harmful gases to the outside in advance can greatly reduce the human injury, product safety It can meet the regulations and pass the fire resistance test, which improves the reliability and the productability of the product.

In addition, by using the bending property of the bimetal due to the temperature rise, the support part supporting the fixing part bends itself and falls down the fixing part in case of a fire, so that the fire door can be fixed to the fire door frame even when there is no separate driving power. have.

In addition, by allowing the user to easily rotate the fixing part which has fastened the fire door to be supported by the support part again, it is possible to more easily loosen the fastening between the fire door frame and the fire door in order for the user in the room to escape.

1 is an exploded perspective view of a thermal deformation preventing apparatus of a fire door according to an embodiment of the present invention.
2 is a diagram illustrating an installation structure of the present invention.
3 to 6 are views illustrating a method of fixing the fire door according to the present invention.
7 is a perspective view of the main body of FIG. 1.
8 to 10 are views illustrating the fixing part of FIG. 1.
FIG. 11 is a view illustrating another example of the bimetal support of FIG. 1.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

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

1 is an exploded perspective view of a thermal deformation preventing apparatus of a fire door according to an embodiment of the present invention.

Referring to Figure 1, the thermal deformation preventing apparatus 10 of the fire door according to an embodiment of the present invention, the main body 100, the bimetal support 200 and the fixing portion 300.

The main body 100 is installed in a fastening groove 410 formed at an upper side of the fire door frame 400 (see FIG. 2), and the bimetal support 200 is installed at at least one of a front end, one side, or both sides thereof. The fixing part 300 is rotatably installed at the other end of the upper portion.

That is, in FIG. 1, only the bimetal support 200 is installed at the front end of the main body 100, but the bimetal support 200 is not only the front end of the main body 100 but also one side of the front end of the main body 100. Alternatively, the front end of the main body 100 may be provided on both sides.

At this time, the fire door frame 400, the fixing groove 510 in a position opposite to the portion where the fixing groove 510 is formed in the fire door 500 so that the front end of the fixing portion 300 falls into the fixing groove 510. A drop hole 411 corresponding to the shape is formed in the hole (see FIG. 2).

When a fire occurs in the room, the fire door 500 is severely torsion occurs in the opposite portion, in particular the upper corner portion of the fire door 500, the hinge is not installed than the hinge portion connected to the fire door frame 400.

Accordingly, the main body 100 is preferably formed on one side of the upper side of the fire door frame 400 that is opposed to the upper edge portion of the fire door 500, the hinge is not installed.

The bimetal support 200 has one side (the upper part of the bimetal support 200 based on FIG. 1) fixedly installed to the main body 100, and the other side (the lower part of the bimetal support 200 based on FIG. 1) penetrates. Bends in the direction of the hole to cover the lower inlet of the through hole to support the front end of the fixed portion 300 is elevated in the through hole of the main body 100, the shape is deformed in the direction away from the through hole as the other side rises Opening the lower side of the through-hole so that the front end of the fixing part 300 falls in the downward direction.

In one embodiment, the bimetal support 200 may be installed at at least one of the front end, one side, or both sides of the main body 100, the other side of the bending portion of the lower inlet of the through hole of the main body 100 or By covering the whole, the front end of the fixed part 300 can be supported so that the elevated state of the front end of the fixed part 300 can be maintained.

Bimetal is a rod-shaped part made by superimposing two kinds of thin metal plates with very different thermal expansion coefficients, and is used to control the device according to the temperature by using the heat-bending property. It refers to a metallic object that can be.

The bimetal support 200 of the present invention is made of a bimetal plate in the form of "b", whereby the lower wing portion bent while maintaining the form of "b" at room temperature, The front end of the fixing part 300 which covers a part or all and is supported by being inserted into the through hole is bent in the direction away from the through hole by using the property of bending as it is heated by the fire. You can drop it.

As shown in FIG. 3A, the fixed part 300 is sheared by a lower wing portion of the bimetal support 200 that covers the lower inlet of the through hole of the main body 100, and the upper and lower sides of the main body 100 are supported. The other end is installed to be rotatable on one side of the through hole formed in the direction.

At this time, the fixing part 300, when the fire door frame 400 is heated, as shown in FIG. 3b, when the bimetal support 200 is bent, the front end falls downward to the fastening groove 410. The fire door 500 may be inserted into the fixing groove 510 formed at one side of the fire door 500 to face the fire door 500.

That is, the usual fixing part 300, as shown in Figure 3a, as the front end is lifted into the inner space of the body portion 100 is supported by the bent lower blade of the bimetal support 200, as shown in Figure 4 As shown, the opening and closing operations of the fire door frame 400 and the fire door 500 are not affected.

However, the temperature at which the bimetallic support part 200 in which a fire or the like occurs and the temperature of the fire door frame 400 covers the through hole of the main body part 100 can be bent so that the through hole is completely opened (for example, 200 ° C.). To 300 ° C. or higher), the through hole is opened, and thus the front end of the fixing part 300 supported by the bimetal support 200 falls down as shown in FIG. 5.

The front end of the fixing part 300 dropped to the lower side is inserted into the fixing groove 510 of the fire door 500 to fasten the upper edge portion of the fire door 500 where deformation by heat is most frequent as shown in FIG. 6. As a result, the upper edge portion of the fire door 500 is fixed to prevent deformation by heat.

Accordingly, the heat or smoke generated during the fire can be prevented from leaking between the gaps of the fire door 500 in which the deformation occurs.

In the thermal deformation preventing device 10 of the fire door having the configuration as described above, a gap is generated between the fire door 500 and the fire door frame 400 due to the twisting of the fire door 500, so that flames and harmful gases are directed to the outside. Leakage can be prevented beforehand, which can greatly reduce human injury, conform to product safety regulations and pass fire resistance test, improving product reliability and marketability.

In addition, when a fire occurs by using the bending property of the bimetal according to the temperature rise, the bimetal support 200 supporting the fixing part 300 is bent by itself to drop the fixing part 300, so that there is no separate driving power source. In this case, the fire door 500 may be fixed to the fire door frame 400.

7 is a perspective view of the main body of FIG. 1.

Referring to FIG. 7, the main body 100 includes a main body 110, a first through hole 120, and a second through hole 130.

The main body 110 is formed in a shape corresponding to the shape of the fastening groove 410 of the fire door frame 400, the first through hole 120 is formed in the vertical direction, the second in the left and right directions at the other end The through hole 130 is formed through.

The first through hole 120 penetrates the body body 110 in the vertical direction in a size corresponding to the shape of the fixing part 300.

The second through hole 130 penetrates in the left and right directions at the other end of the upper body of the main body 110 so as to insert the fastening bolt 330 for fastening the other end of the fixing part 300 in the left and right directions. The fastening bolt 330 is fastened.

The main body 100 having the above-described configuration is preferably formed of a heat-resisting material so that deformation does not occur in the internal space of the heated fire door frame 400 even when a fire occurs.

8 is a view for explaining the fixing part of FIG.

Referring to FIG. 8, the fixing part 300 includes a fixing body 310, a fastening hole 320, and a fastening bolt 330.

The fixed main body 310 is installed to be rotatable at the other end of the first through hole 120 (ie, the second through hole 130) by the fastening bolt 330, and the front end of the fixed main body 310. It is supported by the bimetal support 200 that is bent into the inner space of the 120 and then bent into the first through hole 120.

In one embodiment, the fixed body 310 is sheared as a fire occurs and the other side portion of the bimetal support 200 that is bent into the first through hole 120 is bent in a direction away from the first through hole 120. By dropping in the downward direction and being inserted into the fixing groove 510 of the fire door 500, it is possible to prevent deformation such as bending of the fire door 500 by fixing the fire door 500.

In one embodiment, the fixed body 310 is fixed from a predetermined length (that is, from the second through hole 130 so that when the front end falls in the downward direction can be inserted into the fixing groove 510 of the fire door 500) Length corresponding to the distance to the groove 510).

The fixed body 310 prevents unnecessary collision as the front end rotates to the fixing groove 510, and the other end of the fixed main body 310 rotates at the first through hole 120. It is preferable that the front end and the other end are rounded so as to prevent collision with the front end.

In addition, the fixed body 310, the front end may be elevated to the inner space of the fastening groove 410 in accordance with the rotation of the head 331 to open the fire door 500.

)(예를 들어, 60° 내지 85° 등)를 형성시킴으로써, 고정 본체(310)가 바이메탈 지지부(200)를 들어올리면서 상측 방향으로 이동할 수 있도록 하여 고정 본체(310)가 바이메탈 지지부(200)에 걸려 상측으로 승강되는 것이 방해되는 것을 방지하도록 함이 바람직하다.In case the fire is extinguished to some extent and the bimetal support 200 blocks the lower inlet of the first through hole 120 again, the lower banded portion of the bimetal support 200 is vertically formed in the vertical direction. Angle less than (in FIG.

(For example, 60 ° to 85 °, etc.) to allow the fixed body 310 to move upward while lifting the bimetal support 200, so that the fixed main body 310 is attached to the bimetal support 200. It is preferable to prevent the jamming from being lifted upward.

In addition, the fixed body 310 is formed such that one side surface of the front end facing the installation position of the bimetal support 200 is inclined in a direction away from the bimetal support 200 toward the upper direction, so that the front end is elevated in the upper direction. In this case, it is desirable to minimize the friction with the bimetal support 200.

The fastening hole 320 is formed to penetrate through the left and right directions at the other end of the fixing body 310 and allows the fastening bolt 330 to be inserted.

At this time, the fastening hole 320, as the fastening bolt 330 is inserted and fixed to the portion (that is, the neck 332) is installed, so that the pin body 310 is rotated together in accordance with the rotation of the fastening bolt 330. do.

The fastening bolt 330 has a second end in a state where the other end of the fixing body 310 is inserted into the first through hole 120 so that the fixing body 310 can be installed at the other upper end of the first through hole 120. It is inserted into the through hole 130 and the fastening hole 320.

In one embodiment, the fastening bolt 330 includes a head 331, a neck 332 and a fastening screw 333.

The head 331 is exposed to the outside of the body body 110, and the neck 332 is formed to extend from an inner side facing the fixed body 310.

The neck 332 has a second through hole 130 facing the inlet hole of the second through hole 130 from the inside of the head 331 so as to be inserted into the fastening hole 320. It extends to the inner space of the first through hole 120 through)), the fastening screw 333 is formed from the end.

The fastening screw 333 extends from the end of the neck 332 and forms an inner surface of the outlet of the second through hole 130 (that is, the through hole formed to be spaced apart from the inlet hole of the second through hole 130). Threads are formed along the outer surface to be fastened to the threads thus formed.

As described above, the neck 332 should be fixed to the fastening hole 320 by welding or bonding means so as to rotate the fixing part 300 according to the rotation of the head 331.

In one embodiment, the pin body 310, the front end may be elevated to the inner space of the fastening groove 410 of the fire door frame 400 in accordance with the rotation of the head 331 to open the fire door 500. .

In one embodiment, the head 331 is inserted into the opening hole 420 opened outward from the fastening groove 410 of the fire door frame 400, as shown in Figure 9, the user using a screwdriver A groove corresponding to the shape of the driver may be formed on the exposed surface to rotate.

Accordingly, the user can easily fasten the present invention and the fire door 500 by rotating the head 331 exposed to the outside using a tool such as a screw driver to open the fire door 500 fastened by the present invention. Can be solved.

In one embodiment, the head 331 is inserted into the opening hole 420 opened outward from the fastening groove 410 of the fire door frame 400, as shown in Figure 10, the user rotates by hand One side may pass through the opening hole 420 to be exposed to the outside.

Accordingly, the user can easily loosen the fastening of the present invention and the fire door 500 by rotating by rotating the portion of the head 331 protruding by hand to open the fire door 500 fastened by the present invention.

The fixing part 300 having the above-described configuration is preferably formed of a heat-resisting property so that deformation does not occur in the internal space of the heated fire door frame 400 even when a fire occurs.

Fixed part 300 having the configuration as described above, the user can easily rotate the dropping fixed part 300 to open the fire door fixed to the fire door frame, the user trapped in the room in the event of fire open the fire door You can easily escape the place.

FIG. 11 is a view illustrating another example of the bimetal support of FIG. 1.

Referring to FIG. 11, the bimetal support 200 is formed to have a predetermined length (for example, 1 cm to 5 cm) so as to check the degree of warpage due to heat conduction, and a heat conduction test for receiving heat supplied from the outside. Fins 210 are formed at the front end.

The present invention, which is installed in the interior space of the fire door frame 400, because it operates only in the event of a fire occurs to perform a normal operation at a typical room temperature, that is, whether or not the bending of the bimetal support 200 according to the rise It can be difficult to test.

Accordingly, by installing the heat conduction test pins 210 extending from the bimetal support 200, the user heats the heat conduction test pins 210 using a heating means such as a lighter or a torch, and thus a dangerous fire test for the test. Even without performing the above, it is possible to simply transfer the heat to the bimetallic support 200 to determine whether to perform the operation within the normal range.

Although described above with reference to the embodiments, those skilled in the art can be variously modified and changed within the scope of the present invention without departing from the spirit and scope of the invention described in the claims below. I can understand.

10: heat deformation preventing device of the fire door 100: the main body
110: body body 120: first through hole
130: second through hole 200: support pin
210: heat conduction test pin 300: fixed part
310: fixed body 320: fastening hole
330: fastening bolt 331: head
332: neck 333: fastening screw
400: fire door frame 410: fastening groove
420: open hole 500: fire door
510: fixed groove

Claims (12)

A main body unit installed in a fastening groove formed at one side of the fire door frame and forming a through hole in an up and down direction;
A bimetal support having one side fixed to the main body, the other side bent in the through hole direction to cover the lower inlet of the through hole, and the other side deformed in a direction away from the through hole as the temperature increases; And
A lower part supported by the other side of the bimetal support, and a fixing part including a fixing body having a fastening hole having the other end installed by a fastening bolt to be rotatable on one side of the through hole,
The fixed body,
And a front end of the front door is raised and lowered to an inner space of the fastening groove according to the rotation of the head exposed to the outside of the main body so as to open the fire door.
The method of claim 1, wherein the fixing unit,
When the other end of the bimetal support is deformed in a direction away from the through hole as the temperature rises and the lower inlet of the through hole is opened, the front end falls downward and is formed on one side of the fire door facing the fastening groove. Inserted into the fixing groove to secure the fire door, thermal deformation prevention device of the fire door.
The method of claim 1, wherein the main body portion,
A main body formed in a shape corresponding to the shape of the fastening groove;
A first through hole penetrating the body body in a vertical direction in a size corresponding to the shape of the fixing part; And
And a second through hole formed to penetrate in the left and right directions from the other upper end of the main body so as to insert the fastening bolt for fastening the other end of the fixing part in the left and right direction.
The method of claim 3, wherein the fixing unit,
A fixed main body having the other end installed at the other upper end of the first through hole to rotate;
A fastening hole penetrating in the left and right direction at the other end of the fixed body; And
And a fastening bolt inserted into the second through hole and the fastening hole so that the fixing main body is installed at the other end of the first through hole.
The method of claim 4, wherein the fixed body,
When the shear falls in the downward direction is formed of a predetermined length so that it can be inserted into the fixing groove, the thermal deformation preventing device of the fire door.
The method of claim 4, wherein the fastening bolt,
A head exposed to the outside of the main body;
A neck extending from an inner side of the head to an inner space of the first through hole so as to be inserted into the fastening hole; And
And a fastening screw extending from an end of the neck, the fastening screw forming a thread along an outer surface to be fastened to a thread formed along an outlet inner surface of the second through hole.
delete The method of claim 6, wherein the head,
Is inserted into the opening formed to open from the fastening groove, the thermal deformation preventing device of the fire door.
The method of claim 8, wherein the head,
A device for preventing heat deformation of a fire door, wherein a groove corresponding to the shape of the driver is formed on the exposed surface so that the user can rotate the screw driver.
The method of claim 6, wherein the head,
Is inserted into the open hole formed to be opened to the outside from the fastening groove, one side is exposed to the outside through the opening hole so that the user can rotate by hand, the thermal deformation prevention device of the fire door.
The method of claim 1, wherein the bimetal support,
Formed to a predetermined length so that the degree of warpage due to heat conduction is formed in the front end of the heat conduction test pin for receiving heat supplied from the outside, the thermal deformation prevention device of the fire door.
The method of claim 1, wherein the bimetal support,
The other side of the banding covers the part or all of the lower inlet of the through hole, the thermal deformation preventing device of the fire door.

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