KR102656680B1 - Looped surface type fireproof screen shutter - Google Patents

Abstract

A closed-curve type fire prevention screen shutter according to an embodiment of the present invention includes a plurality of support bars installed on the ceiling; a driving unit that rotates one of the plurality of support bars; a connection unit connecting neighboring support bars among the plurality of support bars to each other and transmitting the rotational force of the driving unit to the support bars; a fire prevention screen, one end of which is fixed to the support bar and wound around the support bar by being wound or unwound in an upward and downward direction by rotation of the support bar; An end bar provided at the bottom of the fire screen; And an auxiliary screen connected to the lower part of the connecting unit and connected to the lower part of the connecting unit to be provided between the neighboring fire screens, wherein the connecting unit is connected to the support bar disposed at a 90 angle and is connected to the driving unit. It can transmit rotational force.

Description

Closed surface type fire protection screen shutter {LOOPED SURFACE TYPE FIREPROOF SCREEN SHUTTER}

The present invention relates to a closed curved type fire screen shutter, and more specifically, to the raising and lowering of a fire screen that prevents the spread of flame or smoke and enables the evacuation of people when a fire breaks out in a large space such as a lobby in a building. We provide a closed-curve type fire screen shutter that can be raised and lowered in a form that surrounds a certain space without a guiding guide rail and can prevent flames or smoke from spreading between neighboring fire screens.

In general, fire screen shutters inside a building are configured to automatically operate and close the fire scene in the event of a fire to prevent the spread of flame or smoke within the building.

As described above, people who were unable to evacuate while the fire area was blocked with a fire screen were able to escape by opening the emergency door installed in the center of the fire screen.

A typical fire screen shutter requires a guide rail to support both ends of the fire screen and guide the raising and lowering of the fire screen. Guide rails are pillar-like members installed on the floor and ceiling of the area where the fire screen is installed.

Recently, as many people come and go in large spaces such as indoor lobbies of buildings, the need to install fire screen shutters in spaces such as lobbies is increasing. However, installing multiple guide rails to raise and lower the fire screen in a space such as the lobby may hinder the passage of people and may spoil the aesthetics of the lobby in normal times when there is no fire.

Accordingly, there is a growing need for fire screen shutters that can be installed quickly in the event of a fire without interfering with people's traffic or damaging the aesthetics of the interior, and that can be installed in large indoor spaces such as lobbies.

In addition, in order to surround a large space, such as the indoor lobby of a building, with fire screen shutters, the fire screens must be arranged in a closed curve shape. Generally, fire screens are provided in a flat shape, so for a fire screen to have a closed curve shape, the fire screens must be arranged in a closed curved shape. A separate fire screen is required to shield between the fire screens. However, it is difficult to install a fire prevention screen separately provided between fire prevention screens with a lifting and winding structure.

Therefore, in the fire screen shutter provided in the form of a closed curve surrounding a large space, there must be no gaps and a technology is needed to raise and lower all fire screens at once.

Korean Registered Patent No. 10-1300908 (Announcement Date: August 27, 2013)

The present invention was developed to solve the problems of the prior art as described above, and provides a closed curved type fire screen shutter that can be installed in an indoor space to surround a certain space such as a lobby without a guide rail to guide the raising and lowering of the fire screen. .

The present invention provides a closed curve type fire screen shutter that can be raised and lowered by using a single drive motor.

The present invention provides a closed-curve type fire screen shutter with an auxiliary fire screen to prevent smoke from passing through the gap between the fire screens in the event of a fire.

The present invention provides a closed-curve type fire screen shutter in which the support bars on which the fire screen is wound are connected to each other so that they can rotate equally by a single driving unit even if the support bars on which the fire screen is wound are not aligned with each other.

The present invention provides a closed curve type fire screen shutter that allows the auxiliary screen connected to the lower part of the connection unit connecting the support bar to be raised and lowered in the same manner as the fire screen wound by the support bar.

A closed-curve type fire prevention screen shutter according to an embodiment of the present invention for achieving the above-described problem includes a plurality of support bars installed on the ceiling; a driving unit that rotates one of the plurality of support bars; a connection unit connecting neighboring support bars among the plurality of support bars to each other and transmitting the rotational force of the driving unit to the support bars; a fire prevention screen, one end of which is fixed to the support bar and wound around the support bar by being wound or unwound in an upward and downward direction by rotation of the support bar; An end bar provided at the bottom of the fire screen; And an auxiliary screen connected to the lower part of the connecting unit and connected to the lower part of the connecting unit to be provided between the neighboring fire screens, wherein the connecting unit is connected to the support bar disposed at a 90 angle and is connected to the driving unit. It can transmit rotational force.

The connection unit includes: a first support bar gear formed at one end of one of the neighboring support bars and rotating integrally with the support bar; And a second support bar gear formed on the other end of the neighboring support bars and rotating integrally with the support bar, wherein the first support bar gear and the second support bar gear are engaged with each other and move in the same direction. It can rotate.

The first support bar gear is formed at one end of the support bar, the second support bar gear is formed at the other end of the support bar facing the first support bar gear, and the support bar is formed at both ends of the support bar. It may be provided to rotate integrally with the first support bar gear and the second support bar gear.

The first support bar gear and the second support bar gear may be provided as bevel gears or miter gears.

The adjacent support bars on which the first support bar gear and the second support bar gear mesh with each other may be arranged so that an angle between them is 90 degrees.

Both ends of the auxiliary screen in the width direction are formed to overlap one end of the fire prevention screen, and the auxiliary screen has a first overlapping portion that overlaps one end of one of the fire prevention screens arranged at an angle of 90 degrees with respect to the connection unit. And it may include a second overlapping portion overlapping with one end of the other.

A cover screen is formed on the fire screen to overlap the auxiliary screen and cover the auxiliary screen, and both ends of the auxiliary screen in the width direction may be positioned between the fire screen and the cover screen.

A spacing unit may be formed on the end bar to space the fire screen and the cover screen.

The spacing unit includes a fixing member connected to the bottom of the fire screen; A movable member connected to the bottom of the cover screen; and a hinge member that connects the movable member to be rotatable with respect to the fixed member.

The fixing member is fixed to the end bar, the hinge member is fixed to the fixing member, and one end of the movable member may be rotatably connected to the hinge member.

The spacing unit includes an elastic member connecting the hinge member and the movable member; and a stopper that limits the separation range of the movable member with respect to the fixing member, wherein the elastic member can maintain the fixing member and the movable member in close contact.

When the fire screen is wound around the support bar rotated by the driving unit and rises, the movable member may be spaced apart from the fixing member by the end bar formed at the bottom of the fire screen.

A plurality of horizontal wrinkles are pre-formed in the upper and lower directions on the auxiliary screen so that the auxiliary screens overlap as the end bar rises, and the auxiliary screen has a plurality of wrinkles formed in a direction intersecting the wrinkles or in a vertical direction. It may contain a metal thread.

When the end bar rises, one end of the movable member not connected to the hinge member is spaced apart from the fixing member and the cover screen is separated from the fire screen, and the auxiliary screen is folded along the crease. The bottom of the auxiliary screen may rise together with the end bar.

The wrinkles are formed in the metal thread in the same way as the auxiliary screen, and the metal thread can function to maintain the folding direction of the wrinkles or the shape of the wrinkles.

The wrinkles are formed identically in the first overlapping part and the second overlapping part, and when the auxiliary screen is raised and folded, a portion of either the first overlapping part or the second overlapping part overlaps the other. It can be folded into existence.

When the auxiliary screen is raised and folded, the folded shape of the wrinkles of the first overlapping part may be different from the folded form of the wrinkles of the second overlapping part.

As described above, the closed curve type fire screen shutter according to the present invention can prevent smoke or flame from spreading within a large indoor space such as a lobby.

The closed-curve type fire protection screen shutter according to the present invention can be raised and lowered without a guide rail.

The closed curved type fire protection screen shutter according to the present invention can be raised and lowered using one drive motor.

The closed-curve type fire screen shutter according to the present invention can rotate equally with one drive motor even if the support bars around which the fire screen is wound are not in a straight line.

In the closed curved type fire screen shutter according to the present invention, the auxiliary screen provided between adjacent fire screens can be raised and lowered in the same manner as the fire screen.

The closed curve type fire screen shutter according to the present invention can provide an auxiliary screen that shields the fire screens regardless of the angle between neighboring support bars.

Figure 1 is a perspective view showing a closed-curve type fire prevention screen shutter according to the present invention.
Figure 1 is a perspective view showing a closed-curve type fire prevention screen shutter according to the present invention.
Figures 2 and 3 are diagrams showing a part of the fire screen shutter according to Figure 1.
Figure 4 is a diagram showing the driving part of the fire screen shutter according to Figure 1.
Figure 5 is a diagram showing a connection unit of the fire screen shutter according to Figure 1.
Figure 6 is a cross-sectional view showing the arrangement relationship of the fire screen, cover screen, and auxiliary screen in the fire screen shutter according to Figure 1.
Figure 7 is a perspective view showing the auxiliary screen of the fire screen shutter according to Figure 1.
Figures 8 and 9 are diagrams showing a separation unit formed at the bottom of the fire screen shutter according to Figure 6.
Figure 10 is a plan view showing a modified example of the fire screen shutter according to Figure 1.
Figures 11 to 14 are diagrams showing the auxiliary screen of the fire screen shutter according to Figure 10.

Hereinafter, the configuration and operation according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The following description is one of several aspects of the present invention that may be claimed for patent, and the following description forms part of the detailed description of the present invention.

However, in describing the present invention, detailed descriptions of well-known functions or configurations will be omitted to make the gist of the present invention clear.

Figure 1 is a perspective view showing a closed-curve type fire prevention screen shutter according to the present invention, Figure 2 is a front view showing a part of the fire prevention screen shutter according to Figure 1, and Figure 3 is a part of the fire prevention screen shutter shown in Figure 2. A perspective view, FIG. 4 is a view showing the driving part of the fire screen shutter according to FIG. 1, FIG. 5 is a view showing a connection unit of the fire screen shutter according to FIG. 1, and FIG. 6 is a view showing the fire screen shutter according to FIG. 1. 7 is a perspective view showing the auxiliary screen of the fire screen shutter according to FIG. 1, and FIGS. 8 and 9 are the bottom of the fire screen shutter according to FIG. 6. Figure 10 is a plan view showing a modified example of the fire screen shutter according to Figure 1, and Figures 11 to 14 are diagrams showing the auxiliary screen of the fire screen shutter according to Figure 10.

Referring to Figure 1, the curved type fire screen shutter 100 according to the present invention includes a plurality of support bars 130 installed on the ceiling 10; A driving unit 150 that rotates one of the plurality of support bars 130; A connection unit 200 that connects neighboring support bars 130 among the plurality of support bars 130 to each other and transmits the rotational force of the driving unit 150 to the support bars 130; A fire screen 110, one end of which is fixed to the support bar 130 and wound around the support bar 130 by being wound or unwound in the vertical direction by the rotation of the support bar 130; An end bar 102 provided at the bottom of the fire screen 110; And it may include an auxiliary screen 160 connected to the lower part of the connecting unit 200 and connected to the lower part of the connecting unit 200 to be provided between neighboring fire screens 110.

Here, the connection unit 200 is connected to the neighboring support bars 130 regardless of the angle between the neighboring support bars 130, or is connected to the support bars 130 arranged at an angle of 90 degrees to drive the drive unit 150. It can transmit rotational force.

By configuring as described above, it is possible to implement a fire screen shutter 100 that surrounds a certain area, such as an indoor lobby of a building.

In Figure 1, a fire screen shutter 100 is shown in which eight support bars 130 are arranged in an octagonal shape. The number of support bars 130 and the shape in which the support bars 130 are arranged are limited to an octagon. It is not, and can be arranged in various closed curves or polygonal shapes.

The closed curved type fire screen shutter 100 (hereinafter referred to as “fire screen shutter”) according to the present invention can be installed on the ceiling 10 of an indoor space of a building to shield a relatively large space such as a lobby. In Figure 1, the space shielded and surrounded by the fire screen 110 may be an indoor lobby, etc. In other words, it can be said that a lobby, etc. is located inside the fire screen 110 formed as a closed curve in FIG. 1.

The fire screen 110 has its upper end connected to a plurality of support bars 130 installed on the ceiling 10 in a closed curve, more specifically, a closed curve or polygon shape, and is connected to the support bar 130 by rotation of the support bar 130. It may be arranged to rise while being wound and to descend as it is released from the support bar 130.

Normally, the fire screen 110 of the fire screen shutter 100 is wrapped around the support bar 130 and embedded in the interior of the ceiling 10 or provided close to the ceiling 10, but in case of fire, the support bar 130 ), the fire screen 110 is released and comes down so that the lower end of the fire screen 110 touches the floor (not shown), thereby blocking the internal space surrounded by the fire screen 110 from the outside.

Since the ceiling 10 of the indoor space where the fire screen 110 is installed is mostly at a high place, it is preferable that an emergency exit 11 through which people can enter and exit is formed at the bottom of the fire screen 110.

As shown in FIG. 1, a plurality of support bars 110 can be connected and installed on the ceiling 10 to surround the space to be shielded with a fire screen 110. One end of the support bar 130 and one end of the neighboring support bar 130 may be connected to each other by the connection unit 200.

Here, the connection unit 200 is connected to the support bars 130 disposed on both sides and functions to transmit the rotational force of one support bar 130 to the other support bar 130. Referring to FIG. 1, all fire screens 110 connected to the eight support bars 130 must be lifted and lowered equally, and for this, all eight support bars 130 must rotate at the same speed. However, the driving unit 150 that transmits rotational force to the support bar 130 is connected to one support bar 130 among the eight support bars 130. The support bar 130 connected to the drive unit 150 may rotate at the same rotation speed as that of the drive unit 150, but the remaining seven support bars 130 may not. However, in the present invention, since the support bars 130 are connected with seven connection units 200, the rotational driving force of the driving unit 150 can be equally transmitted to the eight support bars 130, and as a result, eight fire prevention The screen 110 can be raised and lowered in the same manner.

Figure 4 shows the driving unit 150. The driving unit 150 may include a driving motor 152, a sprocket 153 integrally provided with the support bar 130, and a power transmission member 154 connecting the driving motor 152 and the sprocket 153. . Here, the power transmission member 154 may be provided as a belt or chain.

The drive motor 152, sprocket 153, and power transmission member 154 are preferably provided within the protective casing 151.

Meanwhile, the connection unit 200 provided between the neighboring support bars 130 is not only mechanically connected to the support bars 130 on both sides, but is also connected so that the support bars 130 on both sides rotate at the same speed or state. You can.

To this end, the connection unit 200 may include at least one universal joint connected to the end of a neighboring support bar 130.

Figure 5 shows a connection unit 200 connected to a neighboring support bar 130 in the fire screen shutter 100 according to an embodiment of the present invention.

Referring to FIG. 5, the connection unit 200 includes a first support bar joint 215 formed at one end of one of the neighboring support bars 130 and rotating integrally with the support bar 130; A second support bar joint 245 formed at one end of the other of the neighboring support bars 130 and rotating integrally with the support bar 130; and intermediate joints 220, 225, 226 connected to the first support bar joint 215 and the second support bar joint 245.

Here, the middle joints 220, 225, and 226 are connected to the first support bar joint 215 and the second support bar joint 245 regardless of the angle between the neighboring support bars 130 and rotate together with the neighboring support bars 130. can do.

In the above, the angle between the support bars 130 refers to the angle formed by two neighboring support bars 130 as shown in FIG. 1. When eight support bars 130 form an octagon, as in the case of Figure 1, the angle between the support bars 130 is 135 degrees. If the four support bars 130 form a square, the angle between the support bars 130 is 90 degrees.

The connection unit 200 of the fire screen shutter 100 according to an embodiment of the present invention is connected to the neighboring support bars 130 regardless of the size of the angle (intervening angle) between the neighboring support bars 130. The rotational force of the driving unit 150 can be equally transmitted to the support bar 130.

Since the connection unit 200 is provided in the form of a universal joint, it can be connected to the support bar 130 regardless of the angle between the support bars 130 on both sides.

The connection unit 200 may include a universal joint provided at one end of the support bar 130 and an intermediate universal joint that engages with the universal joint and rotates together.

Referring to FIG. 5, a plate-shaped frame 211 is formed at one end in the longitudinal direction of the support bar 130, and a first shaft extending in the longitudinal direction of the support bar 130 is formed at the center of the plate-shaped frame 211. (210) is formed. A first support bar joint 215 may be formed at the end of the shaft 210. Here, the first support bar joint 215 has the form of a universal joint. The support bar 130, the first shaft 210, and the first support bar joint 215 are all provided along the longitudinal direction of the support bar 130.

Meanwhile, a plate-shaped frame 241 is formed at one end in the longitudinal direction of the support bar 130 adjacent to the support bar 130 on which the first support bar joint 215 is formed, and a plate-shaped frame 241 is formed in the center of the plate-shaped frame 241. A second shaft 240 extending in the longitudinal direction of the support bar 130 is formed. A second support bar joint 245 may be formed at the end of the second shaft 240. Here, the second support bar joint 245 has the form of a universal joint. The support bar 130, the second shaft 240, and the second support bar joint 245 are all provided along the longitudinal direction of the support bar 130.

The connection unit 220 can be said to be a universal joint connected to the first support bar joint 215 and the second support bar joint 245. That is, the connection unit 200 may include intermediate joints 220, 225, and 226 in the form of a universal joint connected to the first support bar joint 215 and the second support bar joint 245.

Referring to FIG. 5, the intermediate joints 220, 225, and 226 are a plate-shaped frame 221 connected to an intermediate support frame 201 connected to a support frame 136 that supports the support bar 130, and a plate-shaped frame 221. It may include an intermediate shaft 220 extending vertically from the plate surface, and a first intermediate joint 225 formed at one end of the intermediate shaft 220 and engaged with the first support bar joint 215. A second intermediate joint 226 engaged with the second support bar joint 245 may be formed at the other end of the intermediate shaft 220.

Here, the direction in which the intermediate shaft 220, the first intermediate joint 225, and the second intermediate joint 226 are arranged is not parallel to the longitudinal direction of the support bar 130, but also is aligned with the two adjacent support bars ( 130) can be arranged in a direction suitable for connecting.

In the case of FIG. 5, since two adjacent support bars 130 are arranged at an angle of approximately 90 degrees, two intermediate joints 220, 225, and 226 are connected. That is, second intermediate joints 230, 235, and 236 connected to the first intermediate joints 220, 225, and 226 and the remaining support bars 130 may be further formed.

Here, the second intermediate joints 230, 235, and 236 are the plate-shaped frame 231 connected to the intermediate support frame 201 connected to the support frame 136 supporting the support bar 130, and the plate surface of the plate-shaped frame 231. It may include an intermediate shaft 230 extending vertically, and a first intermediate joint 235 formed at one end of the intermediate shaft 230 and engaged with the second intermediate joint 226. A second intermediate joint 236 engaged with the second support bar joint 245 may be formed at the other end of the intermediate shaft 230.

As described above, the number of intermediate joints 220, 225, 226, 230, 235, and 236 of the connection unit 200 may vary depending on the angle between the two neighboring support bars 130. However, the connection unit 200 must include at least one intermediate joint (220, 225, 226). That is, one or more intermediate joints 220, 225, 226, 230, 235, and 236 must be provided according to the size of the angle between neighboring support bars 130.

In this way, since the connection unit 200 of the fire screen shutter 100 according to an embodiment of the present invention is provided in the form of a universal joint, the two support bars are connected regardless of the size of the angle between the neighboring support bars 130. The two support bars 130 that can be connected to 130 and connected to the connection unit 200 can rotate in the same direction and at the same speed.

Referring to Figures 1 and 5, the top of the fire screen 110 is connected to the support bar 130, and the top of the fire screen 110 is fixed to the support bar 130 in the form of a flat membrane. When the support bar 130 is rotated by the driving unit 150 and the connection unit 200, the fire screen 110 is wound around the support bar 130 and rises or falls.

However, as shown in FIG. 5, the fire screen 110 cannot be wound around the connection unit 200. In this case, since the space between the two fire screens 110 arranged along the longitudinal direction of the support bar 130, that is, the lower part of the connection unit 200, is open, flame or smoke may spread through this part. In this case, the fire screen shutter 100 cannot function, so the lower part of the connection unit 200 must also be blocked with a fire screen.

The fire screen shutter 100 according to an embodiment of the present invention may include an auxiliary screen 160 provided at the lower part of the connection unit 200. The auxiliary screen 160 may not be wound around the connection unit 200, but the upper end of the auxiliary screen 160 may be connected to the intermediate frame 290 provided at the lower part of the connection unit 200. Here, the intermediate frame 290 is a frame provided in a form connected to the support frame 136.

Both ends of the auxiliary screen 160 in the width direction may be formed to overlap one end of the fire prevention screen 110 in the width direction. When the fire screen 110 is released from the support bar 130 and lowers, the auxiliary screen 160 also descends. In this state, if there is a gap between the fire screen 110 and the auxiliary screen 160, flame or smoke passes through this gap. It is preferable that one end in the width direction of the fire screen 110 and both ends in the width direction of the auxiliary screen 160 overlap or overlap so that there is no gap between the fire screen 110 and the auxiliary screen 160 due to leakage.

In order to ensure the overlapping state of the fire screen 110 and the auxiliary screen 160, a cover screen 120 may be formed on the fire screen 110 to overlap the auxiliary screen 160 and cover the auxiliary screen 160. .

As shown in Figures 8 and 9, the cover screen 120 is provided to have a smaller width than the fire screen 110, one end of which is positioned to match one end of the fire screen 110, and the other end of the cover screen 110 is positioned to match the fire screen 110. It can be sewn (129). Accordingly, the ends of the fire screen 110 and the cover screen 120, which coincide with each other, can be separated from each other, and an auxiliary screen 160 is formed between one end of the fire screen 110 and the end of the cover screen 120, which are separated from each other. It may be provided in an inserted form. Both ends of the auxiliary screen 160 in the width direction are located between the fire prevention screen 110 and the cover screen 120.

When the fire screen 110 and the auxiliary screen 160 are lowered, both ends of the auxiliary screen 160 are sandwiched between the fire screen 110 and the cover screen 120, so the fire screen 110 and the auxiliary screen 160 ), there is no gap between the

After lowering and inspecting the fire screen 110 and the auxiliary screen 160 for operational inspection, etc., the fire screen 110 and the auxiliary screen 160 must be raised and stored in the ceiling 10. However, as mentioned above, since the auxiliary screen 160 is not wound around the connection unit 200, it must be raised and lowered in a different way from the fire screen 110.

In the fire screen shutter 100 according to an embodiment of the present invention, the auxiliary screen 160 may be provided in a form that is raised by being folded rather than being raised by being wound.

As shown in FIG. 7, a plurality of horizontal wrinkles may be formed in advance on the auxiliary screen 160 in the vertical direction so that the auxiliary screen 160 is folded in an overlapping manner. At this time, it is preferable that the wrinkles are formed in advance on the auxiliary screen 160 in a zigzag shape.

Referring to FIG. 7, the auxiliary screen 160 may include a plurality of metal threads 163 formed in a direction intersecting the wrinkles or in a vertical direction. Here, the wrinkles may be formed in the metal room 163 in the same way as the auxiliary screen 160. That is, the wrinkles may be formed on both the fire screen 160 and the metal chamber 163 so that the plurality of metal chambers 163 provided in the vertical direction on the auxiliary screen 160 and the auxiliary screen 160 are folded together.

The metal thread 163 is not sewn to the auxiliary screen 160, but is woven together when weaving the auxiliary screen 160. The metal thread 163 is woven into the auxiliary screen 160 so that the auxiliary screen 160 is visually identifiable in the representation.

The metal thread 163 is made of SUS 304 and can be woven so that a plurality of metal threads 163 are located in the vertical direction at intervals of 1 centimeter.

Here, the metal chamber 163 exists not only in the auxiliary screen 160 but also in the fire prevention screen 110 and the cover screen 120. In FIG. 3, reference numeral 113 indicates a metal chamber in the fire screen 110.

When the fire screen 110, cover screen 120, and auxiliary screen 160 are lowered and fully unfolded, the fire screen 110, cover screen 120, and auxiliary screen 160 are suspended from the ceiling. At this time, a considerable amount of weight is applied to the ceiling. Also, if the width of the fire screen 110 is large, the center portion may sag downward due to the weight, and in this case, the fire screen 110 is not wound evenly when rolled. In the present invention, by arranging a plurality of metal chambers 163 in the vertical direction at intervals of 1 centimeter, the metal chambers 163 can support the weight of the fire screen 110. Accordingly, the metal chamber 163 can prevent the center portion of the fire screen 110 from sagging.

In addition, when a fire occurs and the flame touches the fire screen 110, the temperature of the fire screen 110 increases, the refractory material of the fire screen 110 may harden, and the hardened fire screen 110 may break. . If a portion of the fire screen 110 breaks and falls down, people may be injured. In the case of the present invention, since the metal thread 163 is woven throughout the entire fire screen 110, the hardened portion is held by the metal thread 163, thereby preventing the hardened portion from breaking and falling.

Meanwhile, since the wrinkles formed on the auxiliary screen 160 are also formed on the metal thread 163, the metal thread 163 can function to maintain the folding direction of the wrinkles or the shape of the wrinkles.

When the auxiliary screen 160 moves down and unfolds and then rises and folds, if the auxiliary screen 160 is not folded accurately in a zigzag manner according to the shape or direction of the wrinkles, the auxiliary screen 160 cannot be embedded in the ceiling. do. Therefore, when the auxiliary screen 160 is unfolded and then folded again, a certain amount of wrinkles must remain even when the auxiliary screen 160 is unfolded so that it can be folded accurately, and the metal thread 163 performs this function.

When the fire screen 110 is lowered and unfolded, both ends of the auxiliary screen 160 are sandwiched between the fire screen 110 and the cover screen 120. In this state, when the fire screen 110, cover screen 120, and auxiliary screen 160 rise again, the auxiliary screen 160 cannot be folded along the wrinkles. This is because both ends of the auxiliary screen 160 are sandwiched between the fire screen 110 and the cover screen 120, respectively. In order for the auxiliary screen 160 to be folded along the wrinkles as it rises, it must not be caught between the fire screen 110 and the cover screen 120.

The fire screen shutter 100 according to an embodiment of the present invention includes a separation unit 180 for releasing the state sandwiched between the fire screen 110 and the cover screen 120 when the auxiliary screen 160 rises. can do.

Referring to FIGS. 6, 8, and 9, the spacing unit 180 is a unit that separates (spreads) the fire screen 110 and the cover screen 120. The spacing unit 180 may be formed on the end bar 102 provided at the bottom of the fire screen 110.

The spacing unit 180 includes a fixing member 181 connected to the lower end 111 of the fire screen 110; A movable member 182 connected to the lower end 121 of the cover screen 120; and a hinge member 183 that connects the movable member 182 to be rotatable with respect to the fixed member 181.

One end of the movable member 182 is connected to the hinge member 183, and the hinge member 183 is fixed to the fixing member 181, so one end of the movable member 182 rotates with respect to the fixing member 181. You can do exercise or pivot exercise.

As shown in FIG. 6, it is preferable that two spacing units 180 are provided as a pair to correspond to both sides of the auxiliary screen 160.

The lower end 11 of the fire screen 110 and the lower end 121 of the cover screen 120 may be formed in a tube shape so that a fixed member 181 and a movable member 182 are respectively inserted therein. For example, the end of the fire screen 110 can be folded up and sewn so that the fixing member 181 can be inserted. The bottom of the cover screen 120 may also be formed similarly.

The fixing member 181 is fixed to the end bar 102, the hinge member 183 is fixed to the fixing member 181, and one end of the movable member 182 is attached to the hinge 184 of the hinge member 183. It can be connected rotatably.

Since the fixing member 181 is fixed to the end bar 102, it can serve as a reference surface that enables relative movement of the movable member 182.

The lower end 161 of the auxiliary screen 160 may also be formed in a tube shape so that a weight bar (not shown) can be inserted.

Additionally, referring to Figure 9, the spacing unit 180 includes an elastic member 185 connecting the hinge member 283 and the movable member 182; and a stopper 186 that limits the separation range of the movable member 182 with respect to the fixed member 181.

Here, the elastic member 185 can maintain the fixed member 181 and the movable member 182 in close contact.

When the movable member 182, one end of which is connected to the hinge 184 of the hinge member 183, rotates with respect to the hinge 184, the space between the fixed member 181 and the movable member 182 widens, and the fixed member 181 ) and the movable member 182, the space between the fire screen 110 and the cover screen 120 also widens, and the auxiliary screen 160 is released from its pinched state. At this time, the range in which the movable member 182 is opened relative to the fixed member 181 is sufficient to allow the auxiliary screen 160 to be folded along the wrinkles, and there is no need to open it further than that. The stopper 186 can limit the range in which the movable member 182 is spread relative to the fixed member 181. One end of the stopper 186 is fixed to the hinge member 183, and the other end may be provided in the form of a cantilever. . When the movable member 182, which opens from the fixed member 181, touches one end of the cantilever of the stopper 186, it can no longer open.

When the movable member 182 is spread with respect to the fixing member 181, the elastic member 185 is stretched. One end of the elastic member 185 is fixed to the hinge member 183 and the other end is fixed to the movable member 182. When the movable member 182 opens from the fixed member 181, the elastic member 185 stretches. Due to the elastic restoring force of the elastic member 185, a force is applied to the movable member 182 to return it to its original state in close contact with the fixed member 181.

When the fire screen 110 is wound around the support bar 130 rotated by the driving unit 150 and rises, it is moved from the fixing member 181 by the end bar 102 formed at the bottom of the fire screen 110. Members 182 may be spaced apart. The separated state may be maintained until the auxiliary screen 160 is completely folded along the crease while rising.

Referring to FIG. 6, the end bar 102 is connected to the bottom of the fire screen 110, and when the fire screen 110 is completely lowered, the end bar 102 can be placed on the lowering frame 103. The lowering frame 103 may be embedded in the floor of an indoor space or may be omitted.

When the end bar 102 rises, one end of the movable member 182 that is not connected to the hinge member 183 is spaced apart from the fixed member 181 and the cover screen 120 is positioned against the fire screen 110. In the dropped state, the auxiliary screen 160 is folded along the wrinkles. At this time, the lower end of the auxiliary screen 160 rises together with the end bar 102 and is folded along the wrinkles.

In a state in which the movable member 182 is opened with respect to the fixing member 181, that is, the cover screen 120 is opened with respect to the fire screen 110, the fire screen 110 and the cover screen 120 are connected to the support bar 130. ), and the auxiliary screen 160 rises while being folded along the wrinkles as the end bar 102 rises. When the fire screen 110 and the cover screen 120 are completely wrapped around the support bar 130, the end bar 102 collides with the ceiling 10, and at this time, impact is also applied to the separation unit 180 and the movable member ( 182) may return to a state in close contact with the fixing member 181.

In FIG. 2, reference numeral 109 is a horizontal pocket that rolls the fire screen 110 while maintaining it horizontal when the fire screen 110 rises and rolls, and 101 is a guide rail that guides one end of the fire screen 110, 140 is a storage case that stores the support bar 130 and the fire prevention screen 110 wound around the support bar 130. Here, the guide rail 101 can be omitted.

And, in Figures 2 and 3, reference numeral 108 is a horizontal maintenance bar that rolls the fire screen 110 while maintaining it horizontal when the fire screen 110 rises and rolls.

In the above, FIG. 2 is a view showing the cover screen 120 in a separated state, and FIG. 3 is a view showing the cover screen 120 in a sewn state.

Figure 10 is a plan view showing a modified example of the fire screen shutter according to Figure 1, and Figures 11 to 14 are diagrams showing an auxiliary screen of the fire screen shutter according to Figure 10.

Referring to Figure 10, four support bars 130 are arranged in a square shape. Accordingly, when the fire screen 110 of the fire screen shutter 100 is lowered, it surrounds the space in a square or hexahedron shape.

The connection unit 300 connecting two neighboring support bars 130 uses a gear method rather than a universal joint method.

The connection unit 300 includes a first support bar gear 315 formed at one end of one of the neighboring support bars 130 and rotating integrally with the support bar 130; and a second support bar gear 316 formed at one end of the other of the neighboring support bars 130 and rotating integrally with the support bar 130.

Here, the first support bar gear 315 and the second support bar gear 316 are engaged with each other and can rotate in the same direction, and as a result, the support bar 130 engaged with the connection unit 300 also moves in the same direction. can rotate at the same speed.

In one support bar 130, a first support bar shaft 311 extending in the longitudinal direction of the support bar 130 is formed at one end of the support bar 130, and the first support bar shaft 311 A first support bar gear 315 is formed at one end of the support bar gear 315, and a second support bar shaft 312 is formed at the other end of the support bar 130 facing the first support bar gear 315. It extends in the direction and a second support bar gear 316 may be formed at one end of the second support bar shaft 312. That is, a first support bar shaft 311 and a first support bar gear 315 are formed at one end of the support bar 130, and a second support bar shaft 312 and a second support bar gear 316 are formed at the other end. can be formed.

The support bar 130 may be provided to rotate integrally with the first support bar gear 315 and the second support bar gear 316 formed at both ends thereof.

The first support bar gear 315 and the second support bar gear 316 may be provided as bevel gears or miter gears. The first support bar gear 315 and the second support bar gear 316 may be provided as gears whose rotation axes are orthogonal to each other.

In this way, the adjacent support bars 130 formed with the first support bar gear 315 and the second support bar gear 316 meshing with each other may be arranged so that the angle between them is 90 degrees.

The fire prevention screen 110 is wound around the support bar 130, but the fire prevention screen 110 is not wound around the connection unit 300. Accordingly, a gap is created in the lower part of the connection unit 300, that is, between both ends in the width direction of the fire screen 110, and an auxiliary screen 360 is required to close this gap.

Since the auxiliary screen 360 is provided at the bottom of the connection unit 330 that engages with each other at a 90-degree angle, it must have a shape bent at a 90-degree angle.

11 to 14 show an auxiliary screen 360.

The auxiliary screen 360 is provided to overlap both ends in the width direction of the fire screen 110 wound on the support bars 130 located on both sides of the connection unit 300, and is provided at the lower part of the connection unit 300. It may be provided in a folded form with wrinkles.

The auxiliary screen 360 includes a first overlapping portion 366 that overlaps one end of the fire screens 110 arranged at an angle of 90 degrees with respect to the connection unit 300, and a first overlapping portion 366 that overlaps the other end. 2 may include an overlapping portion 367. That is, the auxiliary screen 360 may include a first overlapping part 366 and a second overlapping part 367 arranged at an angle of 90 degrees.

Both ends of the auxiliary screen 360 in the width direction are formed to overlap one end in the width direction of the fire prevention screen 110, and may be provided in a form sandwiched between the fire prevention screen 110 and the cover screen 120.

The fire screen 110 is formed with a cover screen 120 that overlaps with the auxiliary screen 360 and covers the auxiliary screen 360, and both ends in the width direction of the auxiliary screen 360 are formed with a fire screen 110 and a cover screen ( 120).

Since the structures of the cover screen 120 and the spacing unit 180 are the same as those described in FIGS. 6, 8, and 9, their description is omitted.

In the case of the auxiliary screen 360, the first overlapping part 366 and the second overlapping part 367 arranged at an angle of 90 degrees are positioned to overlap between the fire screen 110 and the cover screen 120, respectively. I do it.

Both ends of the auxiliary screen 360 may be provided in an overlapping form by being inserted into the fire prevention screen 110 and the cover screen 120. Additionally, a separation unit 180 may be provided at the bottom of the fire screen 110 and the auxiliary screen 120.

Here, the configuration of the spacing unit 180 is also the same as that described in FIGS. 6, 8, and 9, and therefore description thereof is also omitted.

The auxiliary screen 360 may be provided in a form that is lifted up and down by being folded, rather than being lifted up and down by being rolled up. A plurality of horizontal wrinkles may be formed in advance on the auxiliary screen 360 in the vertical direction so that the auxiliary screen 360 can be folded in an overlapping manner. At this time, it is preferable that the wrinkles are formed in advance on the auxiliary screen 360 in a zigzag shape.

Additionally, the auxiliary screen 360 may include a plurality of metal threads 363 formed in a direction intersecting the wrinkles or in a vertical direction. Here, the metal room 363 is the same as the metal room 163 described above.

Accordingly, the wrinkles are formed in the same way as the auxiliary screen 360 in the metal thread 363, and the metal thread 363 can function to maintain the folding direction of the wrinkles or the shape of the wrinkles.

FIG. 11 shows the auxiliary screen 360 in an unfolded state, and FIG. 12 shows the auxiliary screen 360 in a folded state along the wrinkles.

Referring to FIG. 11, a plurality of metal chambers 363 are formed in the vertical direction at regular intervals (1 centimeter).

Additionally, the wrinkles may be formed equally in the first overlapping portion 366 and the second overlapping portion 367. Referring to FIG. 11, it can be seen that the wrinkles are formed at the same location across the first overlapping portion 366 and the second overlapping portion 367. However, in addition to the wrinkles formed in the left and right directions, there are also diagonal wrinkles (wrinkles formed at a 45 degree angle) formed between each wrinkle.

Because of the diagonal wrinkles, when the auxiliary screen 360 rises and folds, either the first overlapping part 366 or the second overlapping part 367 is folded so that a portion overlaps with the other.

11 to 14, the first overlapping portion 366 is folded in a zigzag shape along the horizontal wrinkles, while the second overlapping portion 367 is a zigzag folded portion and an oblique line along the horizontal wrinkles. It can be seen that all folded parts are formed along the wrinkles in the direction. That is, the second overlapping part 367 is different from the folding form of the first overlapping part 366 in that the part folded along the diagonal wrinkle overlaps the part folded along the horizontal wrinkle.

Additionally, due to the diagonal wrinkles, when the auxiliary screen 360 rises and is folded, the folded shape of the wrinkles of the first overlapping part 366 is different from the folded form of the wrinkles of the second overlapping part 367.

The first overlapping portion 366 shows a folded shape, having a zigzag shape folded along horizontal wrinkles.

On the other hand, looking at the folded shape of the second overlapping part 367, it has a zigzag shape folded along horizontal wrinkles, and the part where the first overlapping part 366 is connected is folded along diagonal wrinkles. It has a shape. At the portion where the first overlapping portion 366 is connected, a portion that is folded along a diagonal wrinkle overlaps a portion that is folded in a zigzag shape along a horizontal wrinkle.

Therefore, as shown in FIGS. 11 to 14, the folded form of the first overlapping part 366 and the folded form of the second overlapping part 367 are different from each other, but the auxiliary screen 360 is formed in a zigzag shape overall along the wrinkles. It folds.

The diagonal wrinkles formed on the auxiliary screen 360 are such that the auxiliary screen 360, in which the first overlapping part 366 and the second overlapping part 367 are bent at an angle of 90 degrees, is folded in a zigzag shape. This is a wrinkle that is necessary to get rid of wrinkles.

When the end bar 102 rises, one end of the movable member 182 that is not connected to the hinge member 183 is spaced apart from the fixed member 181 and the cover screen 120 is positioned against the fire screen 110. In the separated state, the auxiliary screen 360 is folded along the horizontal wrinkles and the diagonal wrinkles, and the lower ends of the first overlap portion 366 and the second overlap portion 367 rise together with the end bar 102. You can.

By using the closed curved type fire screen shutter 100 formed as described above, it is possible to protect an indoor space such as a lobby from fire without a guide rail, and it is possible to prevent gaps between a plurality of fire screens provided.

As described above, an embodiment of the present invention has been described with reference to specific details such as specific components and limited examples and drawings, but this is only provided to facilitate a more general understanding of the present invention, and the present invention is not limited to the above embodiment. It is not limited, and various modifications and variations can be made from these descriptions by those skilled in the art. Accordingly, the spirit of the present invention should not be limited to the described embodiments, and the claims described below as well as all modifications that are equivalent or equivalent to the claims will fall within the scope of the present invention.

100: Closed curved type fire screen shutter
110: fire screen 120: cover screen
130: support bar 150: driving unit
160,360: Auxiliary screen 180: Separation unit
200,300: Connection unit

Claims (17)

Multiple support bars installed on the ceiling;
a driving unit that rotates one of the plurality of support bars;
a connection unit connecting neighboring support bars among the plurality of support bars to each other and transmitting the rotational force of the driving unit to the support bars;
a fire prevention screen, one end of which is fixed to the support bar and wound around the support bar by being wound or unwound in an upward and downward direction by rotation of the support bar;
An end bar provided at the bottom of the fire screen; and
It includes an auxiliary screen connected to the lower part of the connecting unit and connected to the lower part of the connecting unit to be provided between the neighboring fire prevention screens,
A cover screen is formed on the fire screen to overlap the auxiliary screen and cover the auxiliary screen,
Both ends of the auxiliary screen in the width direction are located between the fire screen and the cover screen,
A spacing unit is formed on the end bar to space the fire screen and the cover screen,
The connection unit is connected to the support bar arranged at a 90 angle to transmit the rotational force of the driving unit.
According to paragraph 1,
The connection unit is,
a first support bar gear formed at one end of one of the neighboring support bars and rotating integrally with the support bar; and
It includes a second support bar gear formed at one end of the other of the neighboring support bars and rotating integrally with the support bar,
A closed curve type fire screen shutter, wherein the first support bar gear and the second support bar gear are engaged with each other and rotate in the same direction.
According to paragraph 2,
The first support bar gear is formed at one end of the support bar, and the second support bar gear is formed at the other end of the support bar facing the first support bar gear,
A closed curve type fire screen shutter, characterized in that the support bar is provided to rotate integrally with the first support bar gear and the second support bar gear formed at both ends of the support bar.
According to paragraph 3,
A closed curve type fire screen shutter, characterized in that the first support bar gear and the second support bar gear are provided as a bevel gear or a miter gear.
According to paragraph 4,
A closed curve type fire screen shutter, characterized in that the adjacent support bars on which the first support bar gear and the second support bar gear mesh with each other are arranged so that an angle between them is 90 degrees.
According to clause 5,
Both ends of the auxiliary screen in the width direction are formed to overlap one end of the fire prevention screen,
The auxiliary screen includes a first overlapping part overlapping with one end of one of the fire prevention screens arranged at an angle of 90 degrees with respect to the connection unit, and a second overlapping part overlapping with one end of the other fire screen. Curved type fire screen shutter.
delete delete According to clause 6,
The separation unit is,
A fixing member connected to the bottom of the fire screen;
A movable member connected to the bottom of the cover screen; and
A closed curved type fire screen shutter comprising a hinge member rotatably connecting the movable member to the fixed member.
According to clause 9,
The fixed member is fixed to the end bar, the hinge member is fixed to the fixed member, and one end of the movable member is rotatably connected to the hinge member.
According to clause 10,
The separation unit is,
an elastic member connecting the hinge member and the movable member; and
It further includes a stopper that limits the separation range of the movable member with respect to the fixed member,
A closed curved type fire screen shutter, characterized in that the elastic member maintains the fixed member and the movable member in close contact.
According to clause 11,
A closed curved type fire screen, characterized in that when the fire screen is wound around the support bar rotated by the driving unit and rises, the movable member is spaced apart from the fixed member by the end bar formed at the bottom of the fire screen. shutter.
According to clause 12,
A plurality of horizontal wrinkles are pre-formed in the upper and lower directions on the auxiliary screen so that the auxiliary screen overlaps as the end bar rises,
The auxiliary screen is a closed curved type fire screen shutter, characterized in that it includes a plurality of metal threads formed in a direction intersecting the wrinkles or in a vertical direction.
According to clause 13,
When the end bar rises, one end of the movable member not connected to the hinge member is spaced apart from the fixing member and the cover screen is separated from the fire screen, and the auxiliary screen is folded along the crease. A closed curved type fire protection screen shutter, characterized in that the lower end of the auxiliary screen rises together with the end bar.
According to clause 14,
The wrinkles are formed in the metal room in the same way as the auxiliary screen,
A closed curved type fire protection screen shutter, characterized in that the metal thread functions to maintain the folding direction of the wrinkles or the shape of the wrinkles.
According to clause 15,
The wrinkles are formed identically in the first overlapping portion and the second overlapping portion,
When the auxiliary screen rises and folds, one of the first overlapping part or the second overlapping part is folded so that a part overlaps with the other.
According to clause 15,
When the auxiliary screen is raised and folded, a closed curve type fire screen shutter, characterized in that the folded shape of the wrinkles of the first overlapping part is formed differently from the folded form of the wrinkles of the second overlapping part.

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