KR102298491B1 - a fireproof shutter for safety - Google Patents

Abstract

The present invention is to provide a safety fire shutter. The safety fire shutter comprises a driving unit, a shutter unit which receives a lifting force from the driving unit and descends when a fire occurs, and a vertical support with a rail unit in which both ends of the shutter unit are inserted and which guides lifting and lowering of the shutter unit. According to the present invention, the safety fire shutter can more easily secure an escape space in an event of the fire.

Description

A fireproof shutter for safety

The present invention relates to a fire shutter that prevents the spread of flames and smoke in the event of a fire, and to a safety fire shutter that can easily escape even when the shutter is closed.

In general, a fire shutter is installed inside a building to prevent the spread of flames and smoke by blocking the entrance or passage of the building while waiting for it to be wound on the ceiling and then unfolding when a fire occurs.

A general fire shutter is composed of a driving unit, a shutter unit that descends in case of fire by receiving lifting force from the driving unit, and a vertical support in which both ends of the shutter unit are inserted and a rail unit guiding the lifting and lowering of the shutter is formed. It is made of steel to have high heat resistance and is installed to be operated remotely according to the instructions of the central center.

These fire shutters are closed early in the event of a fire to guide the evacuees on the correct escape route and prevent the spread of flames and smoke. there is a problem.

In particular, the fire shutter is large and made of steel, so it is not only heavy, but it is also operated automatically, so accidents often occur when an evacuee is crushed by the fire shutter. For this reason, there is an urgent need for improvement, such as death in severe cases.

To prevent this, an emergency stop button or an open button has been recently provided near the fire shutter. this falls sharply.

In addition, although a sensor that temporarily delays the descent of the fire shutter when an obstacle is detected under the fire shutter has recently been installed, the sensor malfunctions and cannot be operated due to long-term neglect and heat in case of fire. In many cases, if the fire shutter is already closed, it is still impossible for evacuees to escape, so it cannot be a fundamental alternative.

Patent Registration No. 10-2139465 B1 discloses a safety fire shutter.

However, in a fire situation, the evacuator raises the shutter using the handle or pushes the shutter to secure an escape space, but the external force applied by the evacuator to the handle is perpendicular to the ground or pushes the shutter to secure the escape space Since the external force is in the horizontal direction to the ground, there is a problem in that it is difficult to secure an escape space from the evacuee's point of view.

An object of the present invention is to solve the above problems, and it is an object of the present invention to provide a safety fire shutter that can more easily secure an escape space in the event of a fire from the point of view of an evacuee.

The problem to be solved by the present invention is not limited to the above-mentioned problems, and the problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the present specification and the accompanying drawings. .

In the safety fire shutter comprising a driving unit and a vertical support provided with a lifting force from the driving unit, a shutter unit that descends when a fire occurs, and a rail unit in which both ends of the shutter unit are inserted and guide the lifting and lowering of the shutter unit,

The shutter unit is divided into an upper shutter and a lower shutter;

The lower shutter includes a screen made of a flexible material, and support rods attached to the screen in a horizontal direction to be vertically spaced apart;

a connection strip for fixing the upper end of the lower shutter is attached along the lower end of the upper shutter;

The screen is made by overlapping a plurality of silica barrier films,

Each silica barrier film is made of a silica refractory fiber fabric with a heat dissipation coating layer formed on both sides,

The support rod is positioned between the silica barrier film,

The thickness of the screen is formed to be thicker on the indoor side than on the outdoor side based on the support rod,

The connecting strip is

an attachment surface attached to the lower end of the upper shutter;

a vertical body extending downward from the attachment surface;

an inlet groove formed at the lower end of the vertical body and into which the upper end of the lower shutter is fitted; and

and a fixing member for fixing the upper end of the lower shutter not to be separated from the inlet groove;

The lower shutter includes a first lower shutter unit on one side connected to the connection strip;

Including a second lower shutter portion on the other side opposite to the ground,

The rail unit,

When the second lower shutter part touches the ground, it faces the upper shutter in an upward direction based on the connection strip, and is not formed on the vertical support in a downward direction based on the connection strip, so that the lower shutter is not opposed to

The lower shutter is

Opposite the vertical support in the lower direction with respect to the connection strip,

The rail unit,

limiting the movement of the position of the upper shutter in the width direction, which is the direction from the indoor side to the outdoor side and from the outdoor side to the indoor side,

The safety fire shutter is

It further includes; a bottom portion facing the lower side of the second lower shutter portion and forming an insertion groove lower than the ground,

the bottom part,

It further includes; a roller part in contact with the second lower shutter part,

The roller part may include a first roller part installed in plurality and spaced apart from the indoor side;

It includes a second roller part which is spaced apart from the outdoor side and installed in plurality,

The first roller part and the second roller part, characterized in that the outer peripheral surface is packed by a sponge,

The first roller part and the second roller part further include a spray hole for spraying water with the sponge when a fire occurs,

The safety fire shutter may further include a handle portion coupled to a support rod and protruding in the width direction of the lower shutter;

The handle portion is formed with a plurality of protrusions in the shape of a 'C',

The handle portion, when the second lower shutter portion is in contact with the roller portion, in contact with the sponge surrounding the outer peripheral surface of the roller portion,

The sponge is

It may be a safety fire shutter that absorbs the water sprayed from the injection hole to absorb the heat of the handle.

According to the safety fire shutter according to an embodiment of the present invention, there is an advantage that it can be easier to secure an escape space when a fire occurs from the point of view of an evacuee.

The effects of the present invention are not limited to the above-mentioned effects, and the effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the present specification and the accompanying drawings.

1 is a schematic perspective view of a safety fire shutter according to an embodiment of the present invention.
2 is a schematic cross-sectional view of a safety fire shutter according to an embodiment of the present invention.
3 is a schematic cross-sectional view of a lower shutter according to an embodiment of the present invention.
4 is a schematic perspective view of a safety fire shutter according to an embodiment of the present invention.
5 is a schematic cross-sectional view of a safety fire shutter according to an embodiment of the present invention.
6 is a schematic cross-sectional view of a safety fire shutter according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention may add, change, delete, etc. other components within the scope of the same spirit, through addition, change, deletion, etc. Other embodiments included within the scope of the invention may be easily proposed, but this will also be included within the scope of the invention.

A safety fire shutter according to an embodiment of the present invention includes a driving unit and a shutter unit that descends when a fire occurs by receiving lifting force from the driving unit, and both ends of the shutter unit are inserted and a rail unit formed with a rail for guiding the lifting and lowering of the shutter unit. can do.

In addition, the shutter unit may be divided into an upper shutter and a lower shutter.

The lower shutter may include a screen made of a flexible material, and support rods attached to the screen in a horizontal direction to be vertically spaced apart.

In addition, a connection strip for fixing the upper end of the lower shutter may be attached along the lower end of the upper shutter, and the screen may be formed by overlapping a plurality of silica blocking films.

Each silica barrier film may be made of a silica refractory fiber fabric having a heat dissipation coating layer formed on both sides.

In addition, the support rod is positioned between the silica barrier film, and the thickness of the screen may be thicker on the indoor side than on the outdoor side based on the support rod.

In addition, an attachment surface attached to the lower end of the upper shutter, a vertical body extending downward from the attachment surface, an inlet groove formed at the lower end of the vertical body to fit the upper end of the lower shutter, and an inlet groove in which the upper end of the lower shutter is fitted It may be provided with a fixing member for fixing so as not to be separated from the.

In addition, the lower shutter may include a first lower shutter unit on one side connected to the connection strip and a second lower shutter unit on the other side facing the ground.

The rail part may face the upper shutter in an upward direction based on the connection strip when the second lower shutter part touches the ground, and on the vertical support in a downward direction based on the connection strip. Since it is not formed, it may not face the lower shutter.

The lower shutter may face the vertical support in a downward direction with respect to the connection strip.

In addition, the rail unit may limit the movement of the position of the upper shutter in a width direction, which is a direction from the indoor side to the outdoor side and from the outdoor side to the indoor side.

In addition, the safety fire shutter may further include a bottom portion facing a lower side of the second lower shutter portion and forming an insertion groove lower than the ground.

The bottom part further includes a roller part in contact with the second lower shutter part, wherein the roller part includes a first roller part installed in plurality and spaced apart from the indoor side and a plurality of roller parts installed in a plurality of spaced apart from the outdoor side. It may include a two-roller unit.

In addition, the first roller portion and the second roller portion may be characterized in that the outer peripheral surface is packed by a sponge.

In addition, the first roller part and the second roller part may further include a spray hole for spraying water with the sponge when a fire occurs.

On the other hand, the safety fire shutter may further include a handle that is coupled to the support rod and protrudes in the width direction of the lower shutter, and a plurality of the handle portions protrude in the shape of a 'C'.

In addition, when the second lower shutter part is in contact with the roller part, the handle part may be in contact with the sponge surrounding the outer circumferential surface of the roller part.

In addition, the sponge may be a safety fire shutter capable of absorbing the heat of the handle by absorbing the water sprayed from the injection hole.

Elements having the same function within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals.

1 is a perspective view illustrating a safety fire shutter 1 according to an embodiment of the present invention, and FIG. 2 is an upper shutter 20 and a lower shutter 30 and a connecting strip 40 according to an embodiment of the present invention. and a cross-sectional view showing the bottom part 100, FIG. 3 is a cross-sectional view showing the main part of the lower shutter 30 according to an embodiment of the present invention, and FIG. 4 is a lower shutter 30 according to an embodiment of the present invention. A perspective view showing that the second lower shutter part 32 of the bottom part 100 is in contact with the roller part 110, and FIG. 5 is a second lower shutter part ( 32) and the roller part 110 of the bottom part 100 are in contact, and it is a cross-sectional view showing that the spray hole 120 of the roller part 110 sprays water with the sponge 130, FIG. 6 is the present invention When an external force is applied to the lower shutter 30 by an evacuator in case of a fire according to an embodiment of the It is a cross-sectional view showing that evacuees can easily secure an escape space.

In the accompanying drawings, in order to more clearly express the technical spirit of the present invention, parts that are not related to the technical spirit of the present invention or that can be easily derived from those skilled in the art have been simplified or omitted.

As shown in FIGS. 1 to 6 , in the present invention, a driving unit 50, a shutter unit 10 that is lowered when a fire occurs by receiving lifting force from the driving unit 50, and both ends of the shutter unit 10 are It is inserted and basically provided with a vertical support (70) formed with a rail portion (60) for guiding the lifting and lowering of the shutter portion (10).

According to the present invention, the shutter unit 10 is divided into an upper shutter 20 and a lower shutter 30 .

Since the upper shutter 20 is similar to a conventional shutter made of iron, a detailed description thereof will be omitted.

In addition, since the vertical support 70 on which the driving unit 50 and the rail unit 60 are formed is also similar to the conventional one, a detailed description thereof will be omitted.

The lower shutter 30 provides an escape space for evacuees while moving to the upper part or the indoor or outdoor side to be described later in case of a fire, and is preferably formed at a height of about 50 cm to 90 cm from the ground so that there is no significant obstacle to evacuation. However, it is not necessarily limited to this.

Meanwhile, the lower shutter 30 may include a first lower shutter unit 31 connected to the connection strip 40 and a second lower shutter unit 32 to be described later, and the lower shutter 30 is It is connected through a connecting strip 40 attached along the lower end of the upper shutter 20 .

As can be seen in FIG. 2 , the connection strip 40 includes an attachment surface 41 attached to the lower end of the upper shutter 20 , and a vertical body portion 42 extending downward from the attachment surface 41 , and , an inlet groove 43 formed at the lower end of the vertical body 42 and into which the first lower shutter unit 31, which is an upper end of the lower shutter 30, is fitted, and the first lower shutter unit 31 It may be composed of a fixing member 44 for fixing so as not to be separated from the inlet groove (43).

In this case, the connecting strip 40 is preferably made of a steel material with strong heat resistance and durability, and the attachment surface 41 may be firmly attached to the upper shutter 20 and welding through welding, but it is necessary to be limited thereto. and can be attached in various ways.

In addition, although the fixing member 44 is also illustrated as an example of a bolt and a nut, it is not necessary to be limited thereto and various applications are possible.

Accordingly, the upper shutter 20 and the first lower shutter portion 31 of the lower shutter 30 can be connected very easily and quickly through the connecting strip 40 .

In particular, if the connection strip 40 is used, the lower end of the previously installed fire shutter is cut to a certain height and the lower shutter 30 is connected to the lower end of the cut fire shutter. It is very useful because it is possible to quickly and easily manufacture the safety fire shutter (1) at a low cost and to minimize the generation of waste materials.

Meanwhile, as shown in FIG. 3 , the lower shutter 30 may include a screen 33 and a support rod 210 .

The screen 33 is made of a light and flexible material so that, when a fire occurs, an evacuee can easily escape by lifting the lower shutter 30 or applying an external force.

In this case, the screen 33 may be configured in a form in which a silica blocking film is overlapped in several layers.

In addition, the silica barrier film is made of a silica refractory fiber fabric having a heat dissipation coating layer formed on both sides.

Silica has excellent heat resistance so that its melting point reaches 1800℃ higher than iron, and it is lighter in weight than iron and has excellent heat dissipation and flame retardancy.

Therefore, the evacuee can very easily lift the light and flexible lower shutter 30 upwards, and also can very easily form an escape space even by pushing or pulling by applying an external force, thus ensuring quick escape as well as evacuation. An accident of being caught under the lower shutter 30 does not occur at all, and even if an evacuee is caught under the lower shutter 30, the lower shutter 30 can be easily lifted to escape quickly and safely.

In addition, since the lower shutter 30 is light in weight, the drive unit 50 can sufficiently elevate the shutter unit 10 even with a small output, thereby significantly reducing the size and installation cost of the driving unit 50 .

In addition, the lower shutter 30 may include support rods 210 attached to the screen 33 in a horizontal direction to be vertically spaced apart.

Preferably, the support rod 210 is positioned between the silica barrier films.

In this case, since the support rod 210 is prevented from being exposed to the outside by the silica blocking film, damage caused by a flame is prevented and the durability of the lower shutter 30 can be greatly improved.

In addition, in order to more reliably block damage to the support rod 210 due to the flame, it is preferable that the thickness of the screen 33 is formed thicker on the indoor side than on the outdoor side with respect to the support rod 210 .

That is, as shown in FIG. 3 , the number of silica barrier films stacked on the indoor side with respect to the support rod 210 is greater than that on the indoor side.

On the other hand, both ends of the upper shutter 20 are fitted to the rail portion 60 of the vertical support 70, so that the lifting can be performed stably.

This is the rail part 60 facing the upper shutter 20 based on the connection strip 40 when the second lower shutter part 32, which is the lower end of the lower shutter 30, touches the ground. is formed from the vertical support 70 so that both ends of the upper shutter 20 are inserted into the rail unit 60 to stably elevate.

Meanwhile, the rail unit 60 may restrict the positional movement of the upper shutter 20 in the width direction, which is the direction from the indoor side to the outdoor side and from the outdoor side to the indoor side.

To explain this in more detail, both ends of the upper shutter 20 are inserted into the rail unit 60 to lift and lower, and thus, both ends of the upper shutter 20 are moved in the width direction by the rail unit 60 . The positional movement of the upper shutter 20 may be limited, and accordingly, the positional movement of the upper shutter 20 in the width direction may be limited.

In addition, the rail unit 60 faces the upper shutter 20 in an upward direction based on the connection strip 40 when the second lower shutter unit 32 touches the ground, and the Since it is not formed on the vertical support 70 in the lower direction with respect to the connecting strip 40 , it may not face the lower shutter 30 .

In addition, the lower shutter 30, the rail portion 60 facing the lower shutter 30 based on the connection strip 40 when the second lower shutter unit 32 touches the ground. is not formed from the vertical support 70 and may face the vertical support 70 .

In this case, the vertical support 70 is provided with a rail portion 60 in an upper direction with respect to the connecting strip 40, and the rail portion 60 in a lower direction relative to the connecting strip 40. It can be implemented by not having, when an evacuator applies an external force to the lower shutter 30 to form an escape space in the event of a fire, the lower shutter 30 moves in the width direction. It is designed to further increase the degree of freedom for

To explain this in more detail, as can be seen in FIGS. 1 and 2 , when a fire occurs, the support rod 210 constituting the lower shutter 30 is Both ends are fitted to the rail unit 60 opposite to the upper shutter 20 based on the connection strip 40 to lift and lower.

Here, if the rail part 60 facing the lower shutter 30 is present based on the connection strip 40 when the second lower shutter part 32 touches the ground, when a fire occurs , the position movement of the support rod 210 in the width direction is limited by the rail portion 60 opposite to the lower shutter 30, so that the lower shutter 30 is positioned in the width direction. restrictions may arise.

That is, when an escape space is formed by applying an external force to the lower shutter 30 from the position of an evacuee in case of a fire, the position movement of the support rod 210 in the width direction is restricted by the rail unit 60. , even if the evacuator applies an external force to the lower shutter 30 , the support rod 210 is caught on the rail unit 60 , so it is not easy for the evacuator to form an escape space.

Here, in the safety fire shutter 1 of the present invention, when the rail unit 60 opposite to the lower shutter 30 does not exist, when an evacuator applies an external force to the lower shutter 30 in the event of a fire, the support rod Since there is no restriction on the positional movement of the 210 in the width direction, an escape space can be formed more easily.

Meanwhile, the safety fire shutter 1 may further include a bottom part 100 that faces the second lower shutter part 32 and is coupled to an insertion groove lower than the ground.

To explain this in more detail, as shown in FIG. 5 , an insertion groove into which the bottom part 100 can be inserted is first formed in the ground, and then the ground and the bottom part 100 forming the insertion groove are bolted together. It can be coupled using various fastening means such as nuts or welding, and by the presence of the insertion groove, when the lower surface of the bottom part 100 and the second lower shutter part 32 face each other, the second lower part The height of the shutter part 32 may be relatively lower than that of the ground on which the insertion groove is not formed.

Meanwhile, as shown in FIGS. 4 and 5 , the bottom part 100 further includes a roller part 110 in contact with the second lower shutter part 32 , and the second lower shutter part 32 . is inserted into the space between the roller parts 110 , so that even without the rail part 60 facing the lower shutter 30 , the shutter part 10 can maintain tension.

Meanwhile, the roller unit 110 may include a plurality of first roller units 111 spaced apart from each other and installed on the indoor side and a plurality of second roller units 112 installed at a plurality of spaced apart from the outdoor side.

In addition, as shown in FIG. 5 , the first roller part 111 and the second roller part 112 have an outer peripheral surface packed with a sponge 130, so that in case of a fire, such as smoke or other ash, The material may be prevented from passing from the indoor direction to the outdoor direction or from the outdoor direction to the indoor direction.

Meanwhile, as shown in FIGS. 1 and 4 , the safety fire shutter 1 is coupled to the support rod 210 by fastening members (not shown) such as bolts and nuts, and the width of the lower shutter 30 is It may further include a handle portion 200 that is formed to protrude in the direction.

The handle portion 200 is formed to protrude in a plurality of 'C' shape, and the handle portion 200 includes the second lower shutter portion 32, the first roller portion 111 and the second roller portion. When inserted between the 112 , it may come into contact with the sponge 130 surrounding the outer circumferential surface of the roller part 110 .

A person skilled in the art will adjust the length of the shutter part 10 or adjust the depth of the bottom part 100 forming the insertion groove through design, such as the handle part 200, the sponge 130 ) and implementing it to be opposite to it is self-evident.

In addition, as shown in FIG. 5 , the roller part 110 may further include a spray hole 120 for spraying water to the outer peripheral surface of the roller part 110 when a fire occurs.

In the event of a fire, the roller unit 110 may receive fire extinguishing water or water from a storage tank (not shown) in which fire extinguishing water or water is stored by a control unit (not shown), and the fire extinguishing water or water is supplied through the injection hole 120 . ) through the outer peripheral surface of the roller part 110 may be sprayed.

To explain this in more detail, a plurality of perforations (not shown) may be formed on the outer peripheral surface of the roller unit 110 , and the injection holes 120 may communicate with the perforations (not shown).

That is, when a fire occurs, fire extinguishing water or water is supplied to the roller unit 110 by a control unit (not shown), and the fire extinguishing water or water is sprayed onto the outer peripheral surface of the roller unit 110 through the injection hole 120 . can be

Therefore, the sponge 130 packing the outer peripheral surface of the roller part 110 receives fire extinguishing water or water from the roller part 110 through the spray hole 120 when a fire occurs, so that the sponge 130 ) may be relatively lower than that of the handle 200 , and thus the sponge 130 may absorb the heat of the contacting handle 200 .

That is, even when an evacuee forms an escape space by using the handle 200 , the heat of the handle 200 is absorbed by the sponge 130 , and burns caused by the handle 200 are prevented. can be prevented, thus ensuring the safety of evacuees.

Meanwhile, the longitudinal direction of the bottom portion 10 may be parallel to the support rod 210 attached to the screen 33 in the horizontal direction, as shown in FIG. 4 .

Each of the first roller part 111 and the second roller part 112 may further include a shaft (not shown) formed in the longitudinal direction of the bottom part 10 .

Here, the meaning of 'each' is,

As an example, the shaft is installed by being inserted into the entire roller constituting the first roller unit 111 that is installed in a plurality and spaced apart from each other, and similarly to the entire roller constituting the second roller unit 112 . It may be inserted and installed, meaning that it may be formed in the first roller part 111 and the second roller part 112, respectively.

As another example, a plurality of the shafts are spaced apart from each other, and it may mean that they may be installed by being respectively inserted into a plurality of rollers constituting the first roller part 111 and the second roller part 112 .

It is obvious that such a modified example belongs to the scope of the present invention.

The shaft (not shown) may be formed of a metal material, and may have a cylindrical rod shape.

Accordingly, the first roller part 111 and the second roller part 112 may be rotated based on the axis.

In addition, the shaft (not shown) may further include an end (not shown) extending from one end and the other end of the shaft and formed by bending.

In addition, the end (not shown) and the bottom part 100 extending from one end and the other end of the shaft (not shown) and formed by bending may be coupled through a fastening means (not shown).

Accordingly, the roller part 110 may be rotated by fixing the position on the bottom part 100 through the coupling between the end part (not shown) and the bottom part 100 .

On the other hand, when a fire occurs, the evacuator can easily form an escape space by pulling or pushing the lower shutter 30 using a relatively small external force.

To explain this in more detail, as can be seen from (a) to (c) of FIG. 6 , an evacuee uses the handle 200 or applies an external force to the lower shutter 30 in an urgent situation where a fire occurs. An escape space can be easily formed by applying it, which can be realized by interaction between the roller part 110 and the external force of the evacuator.

To explain this in more detail, when an external force is applied to the lower shutter 30 , the evacuator may form an escape space in the order of (a), (b), and (c) of FIG. 6 as an example.

In this case, when an external force of an evacuator is applied to the lower shutter 30 , the lower shutter 30 transmits an external force to the second lower shutter unit 32 , and the second lower shutter unit 32 is in contact. By transmitting an external force to the roller unit 110, the roller unit 110 may be rotated about an axis by the external force.

The first roller unit 111 formed on the indoor side rotates in a clockwise direction, and the second roller unit 112 formed on the outdoor side rotates counterclockwise, using this, the roller unit 110 ) and the second lower shutter part 32 may be more easily drawn out than the roller part 110 .

That is, when the roller part 110 is rotated about the axis, the second lower shutter part 32 is more easily raised from the bottom part 100 to the ground direction, and thus, the second lower shutter part ( 32) is made easier to withdraw from the roller unit 110, so that the evacuee can more easily secure an escape space.

In the above, the configuration and features of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and it is understood that various changes or modifications can be made within the spirit and scope of the present invention. It is intended that such changes or modifications will be apparent to those skilled in the art, and therefore fall within the scope of the appended claims.

Safety Fire Shutter: 1
Shutter part: 10, Upper shutter: 20, Lower shutter: 30
First lower shutter unit: 31, second lower shutter unit: 32, screen: 33
Connection strip: 40, Attachment surface: 41, Vertical body part: 42, Inlet groove: 43, Fixing member: 44
Drive part: 50, Rail part: 60, Vertical support: 70
Bottom: 100
Roller part: 110, First roller part: 111, Second roller part: 112
Spray hole: 120
Sponge: 130
Handle: 200
Support bar: 210

Claims (1)

In the safety fire shutter comprising a driving unit and a vertical support provided with a lifting force from the driving unit, a shutter unit that descends when a fire occurs, and a rail unit in which both ends of the shutter unit are inserted and guide the lifting and lowering of the shutter unit,
The shutter unit is divided into an upper shutter and a lower shutter;
The lower shutter includes a screen made of a flexible material, and support rods attached to the screen in a horizontal direction to be vertically spaced apart;
a connection strip for fixing the upper end of the lower shutter is attached along the lower end of the upper shutter;
The screen is made by overlapping a plurality of silica barrier films,
Each silica barrier film is made of a silica refractory fiber fabric with a heat dissipation coating layer formed on both sides,
The support rod is positioned between the silica barrier film,
The thickness of the screen is formed to be thicker on the indoor side than on the outdoor side based on the support rod,
The connecting strip is
an attachment surface attached to the lower end of the upper shutter;
a vertical body extending downward from the attachment surface;
an inlet groove formed at the lower end of the vertical body and into which the upper end of the lower shutter is fitted; and a fixing member for fixing the upper end of the lower shutter not to be separated from the inlet groove,
The lower shutter is
a first lower shutter part on one side connected to the connection strip; and
Including a second lower shutter portion on the other side opposite to the ground,
The rail unit,
When the second lower shutter part touches the ground, it faces the upper shutter in an upward direction based on the connection strip, and is not formed on the vertical support in a downward direction based on the connection strip, so that the lower shutter is not opposed to
The lower shutter is
Opposite the vertical support in the lower direction with respect to the connection strip,
The rail unit,
limiting the movement of the position of the upper shutter in the width direction, which is the direction from the indoor side to the outdoor side and from the outdoor side to the indoor side,
The safety fire shutter is
It further includes; a bottom portion facing the lower side of the second lower shutter portion and forming an insertion groove lower than the ground,
the bottom part,
It further includes; a roller part in contact with the second lower shutter part,
The roller unit,
A plurality of first roller units spaced apart from the indoor side; and
It includes a second roller part which is spaced apart from the outdoor side and installed in plurality,
The second lower shutter unit,
It is inserted into the space between the first roller part and the second roller part,
The shutter unit,
Tension is maintained by the first roller part and the second roller part,
The first roller part and the second roller part,
It is characterized in that the outer peripheral surface is packed by a sponge,
The first roller part and the second roller part,
When a fire occurs, it further comprises a spray hole for spraying water with the sponge,
The first roller part and the second roller part,
Doedoe formed in the longitudinal direction of the bottom part in a direction parallel to the support rod, further comprising a shaft inserted into the first roller part and the second roller part,
The axis is
It further includes an end extending from one end and the other end of the shaft and formed by bending,
The end is
It is coupled to the bottom part through a fastening means,
The safety fire shutter is
It is coupled to the support rod, the handle portion is formed to protrude in the width direction of the lower shutter; further comprising,
The handle portion is formed with a plurality of protrusions in the shape of a 'C',
The handle portion, when the second lower shutter portion is in contact with the roller portion, in contact with the sponge surrounding the outer peripheral surface of the roller portion,
The sponge is
Absorbs the water sprayed from the injection hole to absorb the heat of the handle,
In case of fire, when external force is applied to the lower shutter,
The lower shutter is
applying the external force to the second lower shutter unit,
The second lower shutter unit,
applying the external force to the first roller part and the second roller part,
The first roller part and the second roller part,
The position is fixed on the bottom part by the end part, rotated about the axis by the external force,
The first roller part rotates in a clockwise direction, and the second roller part rotates in a counterclockwise direction, and the second lower shutter part inserted into the space between the first roller part and the second roller part is the second roller part. Drawn out from the first roller part and the second roller part,
Safety Fire Shutter.

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