KR102498101B1 - Double screen fire shutter with fire extinguishing function - Google Patents

Abstract

The present invention relates to a double-screen fire shutter with a fire extinguishing function, and the slats of a double-row screen structure wound in a roll form in a shutter box installed in the passage of a building structure stably according to the lowering movement of the lower lower bar. Along with unfolding, it is possible to secure physical space inside the slat to prevent damage and spread in the event of an emergency such as fire. Accordingly, the present invention, the double-screen fire shutter with fire extinguishing function of the present invention, a shutter box formed with a slat entrance and a built-in shaft on the bottom surface; a slat driving unit built into the shutter box; Slats that open and close the internal passage of the building while moving up and down along both guide rails by the slat driving unit; And a lower bar mounted on the lower part of the slat, and the shutter box further includes a fire extinguishing agent case provided inside the slat entrance and containing a fire extinguishing agent, and the fire extinguishing agent case fixes one side of the lower cover As the thermal melting joint is melted by the flame (heat) of the fire and the fixation is released, the cover is opened to release the fire extinguishing agent inside, and the slats are divided into two rows of first screen and second screen One end of the screen is coupled to the shaft and wound in a circumferential direction, and a first tee bar coupled to the lower end of the first screen and a second tee bar coupled to the lower end of the second screen are further provided. The lower long bar has a front part connected to the first tee bar and a rear part connected to the second tee bar horizontally spaced apart from each other at regular intervals in front and back, and the first screen and the second screen As the screen is wound around the shaft at the same time, a front and rear inclination occurs in the lower long bar due to a difference in height between the first and second tee bars, so that the horizontal adjustment unit provided on one side of the rear portion can adjust the rear portion of the rear portion. It is possible to adjust the inclination so that the lower bar is kept horizontal by varying the height, and the horizontal adjustment unit is vertically coupled to one side of the second opening on the upper surface of the rear part and is in close contact with the second tee (T) bar. Includes; , The bolt moves in a straight line by the step difference between the first and second openings, and the second openings are adjusted to be parallel to the front first openings.

Description

Double screen fire shutter with fire extinguishing function

The present invention relates to a double-screen fire shutter with a fire extinguishing function, and the slats of a double-row screen structure wound in a roll form in a shutter box installed in the passage of a building structure stably according to the lowering movement of the lower lower bar. It relates to a double-screen fire shutter with a fire extinguishing function that can prevent damage and spread in the event of an emergency such as fire by securing a physical space inside the slat along with unfolding.

In general, a fire shutter is installed in a passage inside a building, and functions to block outsiders from entering a specific space and prevent flame, smoke, toxic gas, etc. from spreading in the event of a fire. That is, the conventional fire shutter is one of the fireproof structures installed so that the fire does not spread to the entire interior of the building in the event of a fire, and suppresses the entry of outsiders into a specific space and at the same time prevents flames, smoke, and toxic gases. It is used as a means to prevent spread from the point of ignition by blocking harmful factors in advance. In addition, physical means and evacuation time are provided to quickly and safely evacuate a fire space or people in a fire prevention space by means of a fire shutter.

Such fire shutters must satisfy various requirements such as fire resistance, impact resistance, and insulation through fire resistance tests and smoke insulation tests assuming fire conditions in order to evaluate performance and safety and minimize human or material damage. However, in shopping malls, conference venues, etc., the installation is mandated by the Fire Service Act. Moreover, recently, in order to prevent safety accidents caused by fires and blackouts, there is a tendency to adopt and use safety reinforcement devices, or to promote or plan reinforcement measures accordingly.

Here, looking at the conventional prior art (patent literature) related to the above fire shutter, Korea Patent Registration No. 10-2085438, which was previously proposed by the applicant (inventor) of the present invention (Patent Document 0001), the title of the invention A 'fire shutter with a lower roller' is known. As shown in FIG. 1, this includes a shutter box in which a driving device is installed; a slat unit that can be opened and closed while moving up and down by the driving device and which binds a plurality of plate-shaped panels up and down and is divided into first and second slat units in front and rear two rows; a pair of guide rails for guiding both edges of the slat part when the slat part moves up and down; and a lowering bar mounted on the lower part of the slat unit and moving up and down according to the elevation of the slat unit, wherein the lowering bar is a rotating member having a plurality of rollers arranged in a row at predetermined intervals on a rotating shaft. It is located at the boundary crossing the first slat part or the second slat part and rotates according to the elevation of the slat part, and includes a support plate holding both sides of the rotation member and a bottom plate connecting the lower part of the support plate, , When one side of the first slat part is fixed in the shutter box and one side of the second slat part is moved up and down, the lower bar at the boundary of the first slat part and the second slat part serves as a pulley, and the slat part rises and falls ) and pulls the slat part downward tightly by the load of the lower bar, and the distance between the first and second slat parts is maintained at least larger than the diameter of the roller to suppress the spread of flame in case of fire. A physical space It is a configuration to secure.

Accordingly, the above (Patent Document 0001) is in a state in which the slat parts (first and second slat parts) and the lower bar are wound in a 'U' shape on the rotating shaft and the plurality of rollers provided vertically in the upper driving device and the rotating member, The lift bar moves up and down while interlocking with the rotational driving force of the driving device. When the lowering bar is moved up and down, the slat part is wound in a 'U' shape around the upper and lower rotating shafts and a plurality of rollers, and the first slat part and the second slat part Since the lower long bar at the boundary acts as a pulley, the slat part is lifted and wound or unwound, so the rotational friction (resistance) force increases, resulting in a high risk of overload and a high risk of malfunction. In addition, since the lower long bar deflects in a 'U' shape, the upper driving device rolls up or releases the slat in one direction. cause In addition, the composition of the components such as the lower bar, the rotating shaft, and the roller is complex, and the weight of the device increases, the volume increases, and the installation area is relatively enlarged, reducing space efficiency and increasing energy consumption of the driving device. There were uneconomical and inefficient problems such as poor efficiency and increased production cost as well as manufacturing and installation costs.

Korean Registered Patent Publication No. 10-2085438, title of invention 'Fire shutter with lower roller' (registration date February 28, 2020)

An object of the present invention is to have excellent thermal insulation properties by securing physical space inside the slat by separating the front and rear two-row screens (front screen and rear screen) at regular intervals without overlapping each other by one shaft embedded in the shutter box, Double screen fire protection with fire extinguishing function that enables stable lifting operation while keeping the lower bar horizontal by correcting (adjusting) the difference in level (G) between the top and bottom of the T bar that occurs at the bottom of the front and rear screens. It is to provide a shutter.

Another object of the present invention is to provide a double screen fire shutter that can reduce fire damage by providing an extinguishing agent case in the shutter box and automatically releasing the extinguishing agent while the cover is opened by flame (heat) when a fire occurs. is in

The double-screen fire shutter having a fire extinguishing function of the present invention to achieve the above object includes a shutter box having a slat entrance and a built-in shaft; a slat driving unit built into the shutter box; Slats that open and close the internal passage of the building while moving up and down along both guide rails by the slat driving unit; And a lower bar mounted on the lower part of the slat, and the shutter box further includes a fire extinguishing agent case provided inside the slat entrance and containing a fire extinguishing agent, and the fire extinguishing agent case fixes one side of the lower cover As the thermal melting joint is melted by the flame (heat) of the fire and the fixation is released, the cover is opened to release the fire extinguishing agent inside, and the slats are divided into two rows of first screen and second screen One end of the screen is coupled to the shaft and wound in a circumferential direction, and a first tee bar coupled to the lower end of the first screen and a second tee bar coupled to the lower end of the second screen are further provided. The lower long bar has a front part connected to the first tee bar and a rear part connected to the second tee bar horizontally spaced apart from each other at regular intervals in front and back, and the first screen and the second screen As the screen is wound around the shaft at the same time, a front and rear inclination occurs in the lower long bar due to a difference in height between the first and second tee bars, so that the horizontal adjustment unit provided on one side of the rear portion can adjust the rear portion of the rear portion. It is possible to adjust the inclination so that the lower bar is kept horizontal by varying the height, and the horizontal adjustment unit is vertically coupled to one side of the second opening on the upper surface of the rear part and is in close contact with the second tee (T) bar. Includes; , The bolt moves in a straight line by the step difference between the first and second openings, and the second openings are adjusted to be parallel to the front first openings.

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In addition, according to the present invention, it is characterized in that it includes a screen guide installed in parallel with the shaft between the shaft and the slat entrance to separate the front and rear distances between the first screen and the second screen.

In addition, according to the present invention, the shutter box is characterized in that a non-combustible flame retardant gasket is provided between the upper attachment surface and the building finishing surface to block leakage of flame or smoke due to a fire.

The present invention has a simple configuration in which two-row screens (front screen and rear screen) can be rolled up or reversed at one time with one shaft, so that manufacturing and installation are easy, productivity is improved, and production costs, manufacturing and installation costs are reduced. It is inexpensive, economical, easy to operate, and very efficient because there is no risk of failure.

In particular, the present invention corrects (adjusts) the difference (G) between the upper and lower tee bars of the front screen and the rear screen, which occurs when the two-row screen is wound at the same time, with the horizontal adjusting unit, so that the lower bar can be smoothly maintained in a horizontally stable state. Elevating operation is possible and there is no fear of malfunction, so it is possible to respond quickly in case of emergency such as fire, and the lower bar is evenly seated horizontally on the floor of the aisle, so it has the effect of effectively blocking the spread of flame, high heat, and fire from the fire. .

In addition, in the present invention, even if the front and rear two-row screens are rolled up or down at once, the physical space is secured inside the front and rear two-row screens (slats) in a sufficiently spaced state without overlapping each other according to the guidance of the screen guide to prevent flame (heat) It can effectively block smoke, impact force, etc.

In addition, the present invention has the effect that the fire extinguishing agent case can automatically release the fire extinguishing agent by the flame (heat) of the fire to quickly extinguish the fire, as well as minimize fire damage and spread.

In addition, in the present invention, the slats (first and second screens) are lightweight, so the risk of falling accidents is low, it can be installed in a large size even in a section with a wide aisle width (more than 20M), it can be installed even if the ceiling height is low, and the volume can be reduced to minimize the installation area and increase space utilization. In addition, emergency escape is possible with a two-way opening and closing function in accordance with the evacuation direction (even if the screen is down, it is possible to escape by lifting the bottom bar, and the elderly, women, and children can easily escape because the emergency door is light). It is very safe because there is no burden (extra load) on the lower floors of tall buildings and there is no risk of burns around the area other than the heat applied due to extremely low thermal conductivity.

In addition, the present invention has the advantage of effectively blocking flame, high heat, wind heat, smoke and toxic gas due to fire by providing a non-combustible flame retardant gasket at the contact area with the upper surface of the shutter box.

Figure 1 (a), (b) is a front view and a side view showing a known fire shutter according to the prior art.
2 is a front view of a double screen fire shutter 100 having a fire extinguishing function according to an embodiment of the present invention.
3 is a cross-sectional view taken along line “A”-“A” of FIG. 2;
4 is a side view showing an enlarged main part of a double screen fire protection shutter 100 according to an embodiment of the present invention.
5 shows that when the first screen 131 and the second screen 132 in a two-row structure are simultaneously wound in one direction on the upper shaft 124, the first tee bar 131t at the bottom of the screen and the second screen 131 It is a diagram expressing the upper and lower steps (G) occurring between the tee (T) bars 132t and the forward and backward inclination (θ) of the lower long bar 140 due to the step G.
6 is a cross-sectional side view showing a state in which the lower pole 140 is maintained horizontally by the one side leveling unit 150 according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

The terminology used herein is only for referring to specific embodiments and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of "comprising" specifies specific characteristics, regions, integers, steps, operations, elements, and/or components, and other specific characteristics, regions, integers, steps, operations, elements, elements, and/or groups. does not exclude the presence or addition of

Although not defined differently, all terms including technical terms and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with related technical literature and currently disclosed content, and are not interpreted in ideal or very formal meanings unless defined.

Embodiments of the present invention described with reference to the drawings specifically represent ideal embodiments of the present invention. As a result, various variations of the diagram are expected. Therefore, the embodiment is not limited to the specific shape of the illustrated region. Regions shown or described as flat may have generally straddling and/or non-linear characteristics.

Also, parts shown as having sharp angles may be rounded. Accordingly, the regions shown in the drawings are only approximate in nature and their shapes are not intended to depict the exact shape of the region, nor are they intended to narrow the scope of the present invention.

It is advised that the drawings are schematic and not drawn to scale. Relative dimensions and proportions of parts in the drawings are shown exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are illustrative only and not limiting. In addition, the same reference numerals appearing in two or more drawings of the same structure, element or part are used to indicate corresponding or similar features in different embodiments.

FIG. 2 is a front view of a dual screen fire protection shutter 100 having a fire extinguishing function according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along line “A”-“A” in FIG. 2 . And Figure 4 is a side view showing an enlarged main part of the double-screen fire shutter 100 according to an embodiment of the present invention. 5 shows that when the first screen 131 and the second screen 132 in a two-row structure are simultaneously wound in one direction on the upper shaft 124, the first tee bar 131t at the bottom of the screen and the second screen 131 It is a diagram expressing the upper and lower step G between the tee (T) bars 132t and the forward and backward inclination θ of the lower long bar 140 due to the step G. 6 is a cross-sectional side view of a state in which the lower pole 140 according to an embodiment of the present invention is maintained horizontally by the leveling unit 150 on one side.

In the double screen fire shutter 100 having a fire extinguishing function of the present invention according to the above drawing, in the double screen fire shutter having a fire extinguishing function, a slat entrance 112 is formed on the bottom surface and a shaft 124 is built in. shutter box 110; a slat driving unit 120 built into the shutter box 110; Slats 130 opening and closing the internal passage of the building while moving up and down along the guide rails 114 on both sides by the slat driving unit 120; And a lower bar 140 mounted on the lower part of the slat 130, and the shutter box 110 is provided inside the slat entrance 112 and contains the fire extinguishing agent D. The fire extinguishing agent case 160 ), and the fire extinguishing agent case 160 is fixed as the heat melting joint 163 fixing one side of the lower cover 161 is dissolved by the flame (heat) of the fire and the fixation is released. The cover 161 is opened to release the internal fire extinguishing agent D, and the slats 130 have two rows of first and second screens 131 and 132 divided into front and rear, and one end of the shaft 124 ) and wound in the circumferential direction, a first tee (T) bar 131t coupled to the lower end of the first screen 131, and a second tee coupled to the lower end of the second screen 132 ( A T) bar 132t is further included, and the lower bar 140 is connected to the front portion 141 connected to the first tee bar 131t and the second tee bar 132t. The connected rear part 142 is horizontally spaced at regular intervals in front and back, and the first tee (T) according to the winding of the first screen 131 and the second screen 132 on the shaft 124 at the same time ) Since the front and rear inclination (θ) occurs in the lower long bar 140 due to the upper and lower step G between the bar 131t and the second tee bar 132t, it is provided on one side of the rear part 142 It is possible to adjust the inclination (θ) so that the lower bar 140 is kept horizontal by varying the height of the rear part 142 with the horizontal adjusting part 150, and the horizontal adjusting part 150 adjusts the height of the rear part 142. A bolt 150b vertically through-coupled to one side of the second opening 142h on the upper surface of 142 and in close contact with the second tee bar 132t; wherein the bolt 150b includes first and second openings 142h. It is characterized in that the second opening 142h is adjusted to be parallel to the front first opening 141h by moving in a straight line by the step difference G between the second openings 141h and 142h.

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In addition, according to the present invention, the screen is installed side by side with the shaft 124 between the shaft 124 and the slat entrance 112 to space the front and rear distances between the first screen 131 and the second screen 132. It is characterized in that it includes a guide (165).

In addition, according to the present invention, the shutter box 110 is provided with a non-combustible flame retardant gasket 170 that is inserted between the upper attachment surface and the architectural finishing surface (C.L) to block leakage of flame or smoke due to fire. do.

A more detailed description of the above is as follows.

First, the double screen fire shutter 100 having a fire extinguishing function according to an embodiment of the present invention is to prevent the spread of flame or smoke due to a fire, and includes a shutter box 110, a slat drive unit 120, a slat ( 130), and a lower pole 140, and the lower pole 140 is composed of a first tee bar 131t, a second tee bar 132t, and a horizontal adjustment unit 150.

As shown in FIGS. 2 to 4, the shutter box 110 has a rectangular box shape with a predetermined length and a predetermined width on one side, the slat drive unit 120 is installed inside, and one side of the lower part is slotted. (Slot) type, a slat entrance 112 open downward is formed. The shutter box 110 is installed on the upper part of the installation space created in the building structure where the passage is formed, and when an emergency such as a fire occurs, the slat 130 is lowered to block the passage, thereby preventing damage and spread due to fire. . The shutter box 110 has a gasket 113 in the middle of the slat entrance 112 to block the inflow of foreign substances into the box.

The slat driving unit 120 is a device that provides rotational power, such as the electric motor 122, receives power from the outside and rotates a slat 120 to be described later to roll up or unwind it. The electric motor 120 rotates by transmitting the rotational power of the motor to the shaft 124 through a power transmission unit 126 such as a chain 126c and a sprocket 126s. Meanwhile, the power transmission unit 126 includes a belt, a pulley, a gear box, and the like, and in the present invention, the slat driving unit 120 is a well-known general technology, and a detailed description thereof will be omitted.

The slat 130 is a means for substantially opening and closing the passage of the building structure, and is normally moved upward by the slat driving unit 120 and is rolled around the shaft 124 in the form of a roll, and the shutter box ( 110) are stored. In case of an emergency, such as a fire, or when necessary, the passage can be blocked while lowering (unfolding) by the slat driving unit 120.

In particular, the slats 130 proposed by the present invention can be configured in two rows in front and rear, and are divided into a first screen 131 formed in the front and a second screen 132 formed in the rear, and the first screen 131 and The upper end of the second screen 132 may be fixed to the shaft 124 and extend downward while being folded back and forth. On the other hand, the slats 130 can be divided into multiple columns of 3 to 4 columns, ... n columns, so that more physical space is secured in the space between each screen, as well as damage caused by fire and diffusion efficiency can be improved. .

The slats 130 have various advantages as the first screen 131 and the second screen 132 are made of fireproof silica screens. In other words, it is lightweight, so there is little risk of falling accidents, and it can be installed in a large size in a section with a wide aisle width (more than 20M), and it can be installed even if the ceiling height is low. In addition, emergency escape is possible with a two-way opening and closing function in accordance with the evacuation direction (even if the screen is down, it is possible to escape by lifting the bottom bar, and the elderly, women, and children can easily escape because the emergency door is light). It is very safe because there is no burden (extra load) on the lower floors of tall buildings and there is no risk of burns around the area except for the heat applied due to extremely low thermal conductivity.

Next, guide rails 114 are provided to guide both edges of the slats 130 when the slats 130 move up and down. The guide rails 114 are installed side by side in the vertical direction on both sides of the passage of the building structure and on both sides of the shutter installation space in order to guide the upward and downward movements of the slats 130 . As shown in the enlarged view of FIG. 3, the guide rail 114 has 'T' shaped guide grooves 115 spaced apart at regular intervals on the inner surfaces facing each other. Both ends of the first and second screens 131 and 132 are inserted into the guide groove 115 in the longitudinal direction, and the separation prevention devices 116 are coupled at regular intervals up and down to slide vertically along the guide groove 115. possible. On the other hand, the guide rail 114 is firmly fixed to the architectural finishing surface (C.L) with anchor bolts, and a gasket (l70) is inserted between the contact surface and the architectural finishing surface (C.L) to prevent smoke or flame due to fire. can be completely blocked.

The lower bar 140 is mounted on the lower end of the slat 130 and can be moved up and down, and can be lowered to be seated on the passage floor (G.L). As shown in FIGS. 3 to 5, the lower long bar 140 has a front part 141 and a rear part 142 spaced horizontally at regular intervals on the upper surface, so that the first tee (T) bar 131t ) and the second screen 132 are respectively embedded. The first tee bar 131t is coupled to the lower end of the first screen 131 and the second tee bar 132t is coupled to the lower end of the second screen 132 to form the lower end of the slats 130. It rises and falls while hanging on it.

Here, as shown in FIG. 4, the slat 130 is formed by the first screen 131 in a state in which the first screen 131 and the second screen 132 are wound together around the circumference (surface) of the shaft 124. A difference between the first radius r1 of and the second radius r2 of the second screen 132 occurs, and the first tee bar 131t and the second tee bar 132t at the bottom of the screen An upper and lower step (G) is generated. Due to this, since the lower bar 140 generates a front-back inclination θ and is provided with an oblique angle, it is not aesthetically pleasing because it is lowered under the slat entrance 112 of the shutter box 110 and is unstably seated on the floor. Accordingly, the lower bar 140 can be maintained horizontally by adjusting the inclination θ with the horizontal adjusting unit 150 provided on one side of the upper surface of the rear part 142 .

The horizontal adjusting unit 150 includes a bolt 150b vertically penetrated through one side of the second opening 142h on the upper surface of the rear part 142 and closely attached to the second tee bar 132t. The bolt 150b presses the tee (T) bar 132t as it is tightened in the rotational direction (positive direction) in a state of close contact with the second tee (T) bar 132t so that the rear portion 142 is moved to the front portion ( 141), it rises side by side and becomes horizontal. At this time, by moving the bolt 150b in a straight line as much as the step G between the first and second openings 141h and 142h, adjusting the second opening 142h and the first opening 141h to be parallel, Keep your balance.

Next, the fire extinguishing agent case 160 contains the fire extinguishing agent D therein, as shown in FIGS. 3 and 4, provided in the inner slat entrance 112 of the shutter box 110 when a fire occurs , it can respond quickly to a fire by releasing an extinguishing agent. The fire extinguishing agent case 160 is sealed by containing a certain amount of fire extinguishing agent in the case and blocking the bottom outlet with a cover 161. The cover 161 may be connected to one side of the lower outlet of the fire extinguishing agent case 160 by a hinge 162 and the other side may be fixed by a thermal melting joint 163. When a flame (heat) from a fire is applied to the thermal melting joint 163, the joint is melted and the fixation of the cover 161 is released, so that the fire extinguishing agent D inside the case is released to quickly extinguish the fire. can

On the other hand, the fire extinguishing agent (D) is excellent in the ability to remove one or more of the four elements of combustion, and includes water-based fire extinguishing agents such as water or foam fire extinguishing agents, gas-based extinguishing agents such as carbon dioxide or halogen compounds, and powder. A detailed description thereof will be omitted. In addition, the thermal melting joint 163 includes solder, adhesive, synthetic resin, etc., which melt when heat is applied at a certain temperature or higher.

As shown in FIGS. 3 and 4, the slat 130 is moved according to the guidance of the screen guide 165 and the fire extinguishing agent case 160 provided in the inner slat entrance 112 of the shutter box 110 (that is, , The small confirmation agent case 160 of the present invention has a fire extinguishing function and also serves as a screen guide). Physical space can be secured. That is, the slat 130 is overlapped with one end (top) of the first screen 131 and the second screen 132 coupled to the shaft 124 and wound together, so that the screen guide 165 and the fire extinguishing agent case According to the guidance of 160, it may be spaced apart at regular intervals in the front and rear, and may be able to move up and down in the vertical direction. On the other hand, one side of the fire extinguishing agent case 160 is formed in a slanted inclined surface or streamlined shape corresponding to the moving direction of the second screen 132, so that it smoothly slides into contact.

More specifically, at least one or a plurality of screen guides 165 are provided horizontally between the slat entrance 112 and the shaft 124 so that the screen spans in the traveling direction. As a result, the first screen 131 moves in a straight up and down direction by its own weight, and the second screen 132 hangs over the screen guide 165 and the fire extinguishing agent case 160 in an 'S' shape so that the first screen ( 131) can be moved up and down side by side at a certain distance apart. At this time, the fire extinguishing agent case 160 is installed so that the second screen 132 can move up and down in the vertical direction so that the end of the right inclined surface corresponds to the rear opening 142h of the lower bar 140. Meanwhile, the screen guide 165 may include a friction reducing means such as a bearing to minimize sliding friction (resistance) between the first and second screens 131 and 132 .

In addition, the shutter box 110 inserts a non-combustible flame retardant gasket 170 between the upper attachment surface and the building finishing surface (C.L), so that when a fire occurs in the building structure, flame or smoke, high heat, wind heat and toxic gas, etc. It is possible to prevent the spread of damage by effectively blocking and shielding. The gaskets 113 and 170 are materials that are resistant to flame or high temperature (heat) and may be made of a flame retardant material such as glass fiber, glass fiber, or graphite having excellent non-combustibility (fire resistance) and airtightness.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100: fire shutter, 110: shutter box, 120: slat drive unit, 130: slat, 140: lower bar, 150: horizontal control unit, 160: fire extinguishing agent case, 170: gasket

Claims (4)

In the dual screen fire shutter with fire extinguishing function,
A shutter box 110 having a slat entrance 112 formed on a bottom surface and a shaft 124 embedded therein;
a slat driving unit 120 built into the shutter box 110;
Slats 130 opening and closing the internal passage of the building while moving up and down along the guide rails 114 on both sides by the slat driving unit 120;
It includes; lower bar 140 mounted on the lower part of the slat 130,
The shutter box 110 is provided inside the slat entrance 112 and further includes a fire extinguishing agent case 160 containing a fire extinguishing agent D, and the fire extinguishing agent case 160 is of the lower cover 161. As the heat melting joint 163 fixing one side is melted by the flame (heat) of the fire and the fixation is released, the cover 161 is opened to release the fire extinguishing agent (D) inside,
The slat 130 is wound in the circumferential direction by coupling one end of the first screen 131 and the second screen 132 in two rows divided into front and rear with the shaft 124, and the lower end of the first screen 131 Further comprising a first tee (T) bar 131t coupled to and a second tee (T) bar 132t coupled to the lower end of the second screen 132,
The lower long bar 140 has a front part 141 connected to the first tee bar 131t and a rear part 142 connected to the second tee bar 132t at regular intervals back and forth. It is formed horizontally apart by placing
As the first screen 131 and the second screen 132 are wound around the shaft 124 at the same time, the difference between the top and bottom of the first and second tee bars 131t and 132t Since (G) causes a forward and backward inclination (θ) of the lower bar 140, the height of the rear portion 142 is varied by the horizontal adjustment unit 150 provided on one side of the rear portion 142. The inclination (θ) can be adjusted so that the lower bar 140 remains horizontal,
The horizontal adjustment unit 150 includes a bolt 150b that is vertically coupled to one side of the second opening 142h on the upper surface of the rear part 142 and closely attached to the second tee bar 132t. do,
The bolt 150b is moved in a straight line by the step G between the first and second openings 141h and 142h, and the second opening 142h is adjusted to be parallel to the front first opening 141h. Dual-screen fire shutter with fire extinguishing function. delete According to claim 1,
Includes a screen guide 165 installed in parallel with the shaft 124 between the shaft 124 and the slat entrance 112 to space the front and rear distances between the first screen 131 and the second screen 132 A dual screen fire shutter with a fire extinguishing function, characterized in that. According to claim 1,
The shutter box 110 has a double fire extinguishing function, characterized in that it is provided with a non-combustible flame retardant gasket 170 to block leakage of flame or smoke due to a fire by putting it between the upper attachment surface and the architectural finishing surface CL. screen fire shutter.

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