KR101977044B1 - 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 is possible to prevent a fire door from being twisted by high heat so as to improve fireproof performance by preventing flames from being spread into an outdoor space when generating a fire. The present invention 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 in which a shape is deformed in a direction where the other side is far from the penetration hole in accordance with increase of temperature; and a fixing unit which is inserted into the penetration hole in the vertical direction and in which a lower portion is supported by the other bent side of the bimetal support unit.

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, when the fire occurs 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 is bent by itself to drop the fixing part, and only a part of the fire door is fastened to the fire door. Provided is a thermal deformation preventing device of a fire door that can completely drop the fixed part to the fire door.

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 inserted into the through-hole in the vertical direction, the lower part of which is supported by the other side of the bimetal support.

In one embodiment, the fixing portion is deformed in a direction away from the through hole in accordance with the rise in temperature when the other side of the bimetallic support is deformed so that the lower inlet of the through hole is opened, the lower side falls to the fastening groove and It is inserted into a fixing groove formed on one side of the opposite fire door can be fixed to the fire door.

In one embodiment, the fixing groove is formed of two spaces, the upper space may be formed to a depth corresponding to the height that can be inserted only a portion of the fixing portion.

In one embodiment, the fixing groove, the first housing formed on one side of the fire door facing the fastening groove; A second housing extending from a lower end of the first housing and dropping the fixing part inserted into the first housing into an inner space; And a partition installed between the first housing and the second housing to be rotatable so as to support a lower portion of the fixing part dropped to the first housing.

In one embodiment, the partition, the rotating shaft is installed on both sides rotatably on one side of the space between the first housing and the second housing; And a support wing installed at a front end of the pivot shaft to support a lower portion of the fixing part dropped to the first housing.

In one embodiment, the partition, the support wing which supports the lower portion of the fixing portion in response to the rotation of the rotation shaft to open the fire door fixed by the fixing portion is rotated downward The fixing part may be dropped into the second housing.

In one embodiment, the rotating shaft, one end of the rotating shaft may be exposed to the outside of the fire door.

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 may be installed at at least one of a front end, one side, or both sides of the main body.

In one embodiment, when the bimetal support is heated to a predetermined temperature, the bimetal support may open the lower portion of the through hole to drop the fixing part to the fixing hole.

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

In one embodiment, the body portion, the body body is formed in a shape corresponding to the shape of the fastening groove; And it may include a through hole formed to penetrate the body body in the vertical direction corresponding to the shape of the fixing portion.

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.

Then, by completely dropping the fixing portion that is fastening the fire door to the space formed in the fire door, it is possible to more easily loosen the fastening between the fire door frame and the fire door in order to escape the user inside the room.

1 to 3 are views showing brief configurations of the apparatus for preventing heat deformation of a fire door according to an embodiment of the present invention.
4 to 7 are views for explaining a method of fixing a fire door according to the present invention.
8 and 9 are views illustrating the fixing groove of FIGS. 4 to 7.
10 is a view showing the bimetallic support of FIG.
FIG. 11 is a view illustrating a main body 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 to 3 are views showing brief configurations of the apparatus for preventing heat deformation 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 the fastening groove 410 formed on the upper side of the fire door frame 400, the bimetal support 200 is installed in at least one of the front end, one side or both sides, is formed in the vertical direction The fixing part 300 is inserted into the through hole 120 (see FIG. 11).

That is, in FIGS. 1 to 3, 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 the main body 100. The front end of the one or the front end of the main body portion 100 may be installed on both sides.

In this case, the fire door frame 400 is formed in the fixing groove 510 at a position opposite to the portion where the fixing groove 510 is formed in the fire door 500 so that the fixing part 300 may fall into the fixing groove 510. A drop hole 411 corresponding to the above is formed (see FIG. 4).

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.

In the bimetal support 200, the bimetal support 200 has one side (the upper portion of the bimetal support 200 based on FIG. 2) fixed to the main body 100, and the other side (the bimetal support 200 based on FIG. 2). The lower part of the lower part 200 is bent in the through hole direction to cover the lower inlet of the through hole and to support the lower part of the fixing part 300 inserted into the through hole 120 of the main body part 100. As shown in the other side is deformed in the direction away from the through-hole 120 to open the lower side of the through-hole so that 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 entirety, the fixing part 300 inserted into the through hole 120 may be supported.

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 having a “b” shape, and thus, a lower wing portion that is bent while maintaining a “b” shape at a normal temperature, so that the lower inlet of the through hole of the main body part 100 may be formed. 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.

In one embodiment, the bimetal support 200, when heated to a predetermined temperature (for example, 200 ℃ to 300 ℃, etc.) to open the lower portion of the through-hole 120 to fix the fixing portion 300 is supported Can be dropped alone.

The fixing part 300 is inserted into the through hole 120 in the up and down direction, and is supported by the lower side of the bimetal support part 200 that covers the lower inlet of the through hole 120 of the body part 100. do.

In this case, the fixing part 300 is lowered as a fire occurs and the other side portion of the bimetal support 200 which is bent into the through hole 120 is bent in a direction away from the through hole 120 as shown in FIG. 3. By dropping in the direction and inserted into the fixing groove 510 (see FIG. 4) of the fire door 500, it is possible to prevent deformation such as bending by fixing the fire door 500 to the fire door frame 400.

That is, the usual fixing part 300, as shown in FIG. 5 is supported by the lowered wing of the bimetal support 200, after being elevated to the inner space of the main body 100, that is, through-hole 120 Accordingly, 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 lower inlet of the through hole is opened as shown in FIG. 6, and thus the fixing part 300 supported by the bimetal support 200 falls down.

In one embodiment, the fixing groove 510 is formed in a shape corresponding to the shape of the fixing part 300, and two spaces formed in the vertical direction (that is, the first housing 511 and the second housing 512). ), The upper space is formed to a depth corresponding to the height to be inserted so that the fixing portion 300 can be inserted only a predetermined height, the total height of the two spaces are deeper than the height of the fixing portion 300 It can be formed to be.

For example, when the upper and lower heights of the fixing part 300 is 5 cm, the upper space of the fixing groove 510 (that is, the first housing 511) has a depth of 2.5 cm to form the fixing part 300. Only the lower 2.5cm to be inserted into the fixing groove 510, the upper 2.5cm by maintaining the state inserted into the through hole 120, the fire door 500 can be fastened by the fixing part 300.

In addition, the lower space (that is, the second housing 512) is formed deeper than 2.5 cm, so that the total height of the upper space and the lower space is formed to be deeper than 5 cm, as shown in Figure 7 fixed portion 300 May be accommodated to be completely inserted into the fixing groove 510.

The fixing part 300 whose lower portion falls downward into the fixing groove 510 fastens the upper edge portion of the fire door 500 in which deformation by heat is most frequent, thereby causing the upper edge portion of the fire door 500 to be opened by heat. It is fixed to prevent deformation.

Accordingly, it is possible to prevent the leakage of heat or smoke generated during a fire between the gaps of the fire door 500 in which deformation occurs.

Therefore, the fixing part 300 is formed of a heat-resisting material to prevent deformation in the inner space of the heated fire door frame 400 even when a fire occurs. This is preferred.

Next, in a state in which only a portion of the lower portion of the fixing groove 510 is inserted into the fixing groove 510, the fire door 500 is fastened to the fire door frame 510 so that the fire door 500 cannot be opened.

Accordingly, in the present invention, by rotating the partition 513 supporting the fixing part 300, as shown in Figure 7, the fixing part 300 is completely inserted into the fixing groove 510, the fire door frame 400 ) And the fire door 500 can be released.

Details of each configuration of the fixing groove 510 will be described below with reference to FIG. 8.

8 and 9 are views illustrating the fixing groove of FIGS. 4 to 7.

8 or 9, the fixing groove 510 includes a first housing 511, a second housing 512, and a partition 513.

The first housing 511 is formed on one side of the upper side of the fire door 500 facing the fastening groove 410, the second housing 512 is formed extending from the lower end, between the second housing 512 Partition 513 is installed to divide the space.

The second housing 512 extends from the lower end of the first housing 511 and drops the fixing part 300 inserted into the first housing 511 into the inner space.

At this time, the depth of the first housing 511 is formed to a depth such that only a portion of the lower portion of the fixing part 300 is inserted as described above, the depth of the second housing 512 with the first housing 511 The total depth is formed to such a depth that the fixing part 300 is fully inserted.

The partition 513 is installed between the first housing 511 and the second housing 512 so as to be rotatable, and supports the lower portion of the fixing part 300 dropped to the first housing 511 so as to support the lower portion of the partition 513. 300 is prevented from falling into the second housing 512.

In one embodiment, partition 513 may include a pivot 5513 and support vanes 5152.

The rotation shaft 5131 is provided on one side of the space between the first housing 511 and the second housing 512 so as to be rotatable, and a support wing 5152 is provided at the front end.

Here, the rotation shaft (5131), one end can be exposed to the outside of the fire door 500 so that the user can rotate.

That is, one end of the shaft is formed to be exposed to the outside of the fire door 500 so as to drop the fixing part 300 inserted into the first housing 511 to only the second housing 512. By dropping the fixing part 300 so as to loosen the fastening between the fire door 500 and the fire door frame 400.

The support vanes 5152 are provided at the front end of the rotation shaft 5131 to support the lower portion of the fixing part 300 dropped to the first housing 511, and as shown in FIG. By rotating according to the rotation, the fixing part 300 may be dropped to the second housing 512.

In the fixing groove 510 having the above-described configuration, the user can easily drop the fixing part 300 dropped only to the first housing 511 to the second housing 512 so that the fire door frame 400 and the fire door 500 are provided. By having a fastening between the two, the user trapped inside the fire can open the fire door and easily escape the fire place.

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.

10 is a view showing the bimetallic support of FIG.

Referring to FIG. 10, 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.

FIG. 11 is a view illustrating a main body of FIG. 1.

Referring to FIG. 11, the main body 100 includes a main body 110 and a through hole 120.

The main body 110 is formed in a shape corresponding to the shape of the fastening groove 410 of the fire door frame 400, forms a through hole 120 in the vertical direction, and inserts the fixing part 300 in the vertical direction. Be sure to

The through hole 120 is formed to penetrate the body body 110 in the vertical direction corresponding to the shape of the fixing part 300 to insert the fixing part 300 in the vertical direction.

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.

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: through hole
200: bimetal support 300: fixed part
400: fire door frame 410: fastening groove
500: fire door 510: fixed groove
511: first housing 512: second housing
513: partition 5131: rotation axis
5132: support wing

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
Inserted into the through-hole in the vertical direction, and includes a fixing portion that is supported by the lower side of the bimetal support portion bent,
The fixing portion,
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 fixing groove formed on one side of the fire door facing the fastening groove falls downward. Inserted into the door to secure the fire door,
The fixing groove,
Formed into two spaces,
And a partition supporting one side of the two spaces so as to be rotatable and supporting a lower portion of the fixing part dropped in a downward direction.
delete The method of claim 1, wherein the fixing groove,
The upper space is formed to a depth corresponding to the height that can be inserted only a portion of the fixing portion, thermal deformation preventing device of the fire door.
The method of claim 3, wherein the fixing groove,
A first housing formed at one side of the fire door facing the fastening groove; And
And a second housing extending from a lower end of the first housing and dropping the fixing part inserted into the first housing into an internal space.
The method of claim 4, wherein the partition,
A rotating shaft installed at one side of the space between the first housing and the second housing to be rotatable; And
And a support wing installed at a front end of the pivot shaft to support a lower portion of the fixing part dropped to the first housing.
The method of claim 5, wherein the partition,
In order to open the fire door fixed by the fixing part, the support wing supporting the lower part of the fixing part rotates in a downward direction in response to the rotation of the pivot shaft to drop the fixing part into the second housing. To prevent thermal deformation of fire doors.
The method of claim 5, wherein the rotating shaft,
One end of the fire door is exposed to the outside of the fire door so that the user can rotate, 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,
It is installed at at least one of the front end, one side or both sides of the main body portion, the thermal deformation prevention apparatus of the fire door.
The method of claim 1, wherein the bimetal support,
When the heating to a predetermined temperature to open the lower portion of the through hole to support the falling of the fixing portion to the fixing groove, the thermal deformation prevention apparatus 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.
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; And
And a through hole formed to penetrate the body body in a vertical direction corresponding to the shape of the fixing part.

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