Fire Prevention Equipment Including Sprinklers

Abstract

The present invention relates to a fire prevention and control device comprising a sprinkler capable of expanding the fire suppression range and suppressing a fire early by spraying firefighting water as the sprinkler moves up and down from the bottom of the ceiling panel in the event of a fire.

Description

Technology Field

[0001] The present invention relates to a fire prevention and control device, and more specifically, to a fire prevention and control device comprising a sprinkler that can expand the fire suppression range and suppress a fire early by spraying firefighting water as the sprinkler moves up and down from the bottom of a ceiling panel in the event of a fire. Background Technology

[0002] Generally, fire extinguishing in buildings can be classified into extinguishing with fire extinguishers, extinguishing using fire hydrants, extinguishing by fire trucks and firefighters, and extinguishing by sprinkler systems.

[0003] Extinguishing fires using fire extinguishers and hydrants involves occupants using these devices to extinguish a fire in a building. While this method has the advantage of being effective for initial fire suppression, it becomes useless if occupants are unable to use the devices due to their age or lack of fire safety training.

[0004] Furthermore, firefighting by fire trucks and firefighters faces difficulties in the initial stages due to the time required for them to arrive at the scene after a fire breaks out and a report is received.

[0005] Meanwhile, each fire brigade places great importance on extinguishing fires in the early stages and is making every effort to achieve its goal of extinguishing the fire within 5 to 10 minutes, known as the "golden time" for fires; however, the time required for dispatch is becoming longer due to traffic conditions and illegal parking in alleyways.

[0006] Typically, a fire sprinkler system for a building includes a primary pipe including a fire extinguishing water tank and a riser pipe connected to the water tank and installed within a pipe duct, a secondary pipe connected to the primary pipe through an opening / closing valve and installed within the ceiling, and a sprinkler head installed in the secondary pipe and exposed from the ceiling, wherein a pressurizing pump and a pressure tank for pumping water from the water tank are installed in the primary pipe.

[0007] A sprinkler system for such a building is disclosed in Korean Registered Patent Publication No. 10-2349364.

[0008] Conventional sprinkler systems for buildings are structured such that sprinklers are installed on the ceiling surface to spray water in the event of a fire.

[0009] Conventional sprinkler systems are fixedly installed on the ceiling and can be moved slightly, but this movement is merely for the external exposure of the head, which results in a problem where the spray range of the sprinkler system is limited.

[0010] In addition, conventional sprinkler systems have the problem that direct spraying is impossible in fire zones that occur mainly in the lower part of residential areas, as spraying is performed from a fixed position on the ceiling. Prior art literature

[0011] Korean Patent Publication No. 10-2349364 The problem to be solved

[0012] Accordingly, the objective of the present invention is to solve the problems of the prior art as described above by providing a fire prevention device including a sprinkler that can expand the fire suppression range and suppress a fire early by spraying firefighting water as the sprinkler moves up and down from the bottom of the ceiling panel in the event of a fire. means of solving the problem

[0013] According to the features of the present invention for achieving the above-mentioned purpose, a fire prevention device including a sprinkler according to the present invention comprises: a water supply pipe that supplies firefighting water and is positioned on the upper part of a ceiling panel; a corrugated pipe fixing body that is positioned on the upper part of the ceiling panel, has a receiving space formed inside, has a withdrawal hole formed on the bottom surface communicating with a through hole formed in the ceiling panel, and has a fastening hole formed on the top surface communicating with the receiving space; a sprinkler positioned on the lower part of the ceiling panel; an expandable supply hose that is installed inside the corrugated pipe fixing body, is formed in the shape of a corrugated pipe and is installed to enable contraction and extension movements, has one end connected to the water supply pipe and the other end connected to the sprinkler to move the sprinkler toward the lower direction of the ceiling panel in the event of a fire and supply firefighting water to the sprinkler; and a cable-shaped hose that is installed through the ceiling panel and is fixedly installed on both sides of the sprinkler, so that when the expandable supply hose contracts and extends, the sprinkler The device is characterized by comprising: a lifting / lowering cable that moves up and down; a cable bobbin installed on the upper surface of the ceiling panel and formed in a bobbin shape, through which the lifting / lowering cable is wound and unwound; a lifting / lowering member including a cable motor fixedly installed on one side of the cable bobbin and which rotates the cable bobbin in forward and reverse directions; a cable guide hole formed through the corrugated pipe fixing body and the ceiling panel, respectively, to guide the up and down movement of the lifting / lowering cable; and guide rollers installed inside the ceiling panel, formed in a roller shape, installed on both sides of the cable guide hole, respectively, to guide the winding and unwinding operation of the lifting / lowering cable. Effects of the invention

[0014] The fire prevention device including a sprinkler according to the present invention has the following effects.

[0015] The present invention has the advantage that, as the sprinkler is installed to move up and down from the bottom of the ceiling panel, it enables fire suppression over a wide range and expands the fire suppression area.

[0016] In addition, since firefighting water can be sprayed directly down to the area below the fire, fire suppression time is shortened and fire suppression efficiency is improved.

[0017] In addition, as the sprinkler and expansion hose automatically return to their original positions after fire suppression is complete, ease of use is improved, and there is the advantage of enabling rapid post-fire damage cleanup. Brief explanation of the drawing

[0018] FIG. 1 is a cross-sectional view showing the configuration of a preferred embodiment of a fire prevention device including a sprinkler according to the present invention. FIG. 2 is a plan view showing the configuration of a preferred embodiment of a fire prevention device including a sprinkler according to the present invention. FIG. 3 is a cross-sectional view showing the state in which a sprinkler moves up and down from the bottom of a ceiling panel by means of an expandable supply hose and a lifting / lowering guide member constituting an embodiment of the present invention. FIG. 4 is an enlarged cross-sectional view showing the configuration of a lifting / lowering guide member constituting an embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view showing the state in which an air control tube is installed in a flexible supply hose constituting an embodiment of the present invention. Specific details for implementing the invention

[0019] Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments of the present invention, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted.

[0020] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are intended only to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms. Where it is stated that a component is "connected," "combined," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but that another component may also be "connected," "combined," or "connected" between each component.

[0021] Hereinafter, the configuration of a fire prevention device including a sprinkler according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

[0022] As illustrated in these drawings, a fire prevention device including a sprinkler according to the present invention comprises: a water supply pipe (10) that supplies fire water and is positioned on the upper part of a ceiling panel (C); a corrugated pipe fixing body (20) that is positioned on the upper part of the ceiling panel (C), has a receiving space (22) formed inside, has a drawing hole (24) formed on the bottom surface that communicates with a through hole (H) formed in the ceiling panel (C), and has a fastening hole (26) formed on the top surface that communicates with the receiving space (22); a sprinkler (40) that is positioned on the lower part of the ceiling panel (C); and a corrugated pipe fixing body (20) that is installed inside the corrugated pipe fixing body (20), is formed in the shape of a corrugated pipe and is installed to enable contraction and extension movements, has one end connected to the water supply pipe (10), and the other end connected to the sprinkler (40) so that when a fire occurs, the sprinkler (40) is moved toward the lower direction of the ceiling panel (C). A lifting / lowering member (50) comprising: an expandable supply hose (30) for supplying firefighting water to the above-mentioned sprinkler (40); a lifting / lowering cable (52) formed in the shape of a cable, installed through the above-mentioned ceiling panel (C), and fixedly installed on both sides of the above-mentioned sprinkler (40) to move the above-mentioned sprinkler (40) up and down when the expandable supply hose (30) contracts and extends; a cable bobbin (54) installed on the upper surface of the above-mentioned ceiling panel (C) and formed in the shape of a bobbin, which allows the lifting / lowering cable (52) to wind and unwind; a cable motor (56) fixedly installed on one side of the cable bobbin (54) to rotate the cable bobbin (54) in forward and reverse directions; a cable guide hole (58) formed through the above-mentioned corrugated pipe fixing body (20) and the above-mentioned ceiling panel (C), respectively, to guide the up and down movement of the above-mentioned lifting / lowering cable (52); and the above It is configured to include guide rollers (60) that are installed inside the ceiling panel (C), are formed in the shape of rollers, are installed on each side of the cable guide hole (58), and guide the winding and unwinding operation of the lifting cable (52).

[0023] A preferred embodiment of the fire prevention device according to the present invention will be described in detail below with reference to the attached drawings.

[0024] The above ceiling panel (C) is a standard indoor ceiling panel, so a detailed description is omitted. The lower surface of the above ceiling panel (C) is a part where a sprinkler (40), to be described later, is installed and can be selectively fixed and released.

[0025] A through hole (H) is installed in the ceiling panel (C). The through hole (H) is formed vertically through the ceiling panel (C) and is a part through which a sprinkler (40), to be described later, is placed or an expandable supply hose (30) passes.

[0026] A water supply pipe (10) is installed on the upper part of the ceiling panel (C). The water supply pipe (10) is a general fire water supply pipe, so a detailed description is omitted. The water supply pipe (10) is installed on the upper part of the ceiling panel (C) and serves to supply fire water to the flexible supply hose (30) described later.

[0027] A corrugated pipe fixing body (20) is installed between the ceiling panel (C) and the water supply pipe (10). The corrugated pipe fixing body (20) is formed in a hollow cylindrical shape and is formed to be long vertically. The corrugated pipe fixing body (20) is fixedly installed vertically on the upper surface of the ceiling panel (C). A receiving space (22) is formed inside the corrugated pipe fixing body (20), which is a part where the expandable supply hose (30), to be described later, is stored in a contracted state.

[0028] A withdrawal hole (24) is formed on the lower surface of the corrugated pipe fixing body (20). The withdrawal hole (24) is formed to penetrate vertically through the corrugated pipe fixing body (20). The withdrawal hole (24) communicates with the through hole (H) and is the part through which the expandable supply hose (30), which will be described later, passes when the expandable supply hose (30) is extended downward.

[0029] A fastening hole (26) is formed on the upper surface of the corrugated pipe fixing body (20). The fastening hole (26) is formed vertically through the upper surface of the corrugated pipe fixing body (20). The fastening hole (26) is formed through the upper surface of the corrugated pipe fixing body (20) and is a part through which the water supply pipe (10) passes.

[0030] A fixing flange (28) is formed at the lower part of the corrugated pipe fixing body (20). The fixing flange (28) is formed in a flange shape and adheres to the upper surface of the ceiling panel (C). Screws or bolts are fastened to the fixing flange (28) to secure the corrugated pipe fixing body (20) to the upper surface of the ceiling panel (C).

[0031] An expandable supply hose (30) is installed inside the corrugated pipe fixing body (20). The expandable supply hose (30) consists of a water supply pipe connection part (32), a corrugated pipe part (34), a sprinkler connection part (36), etc. The water supply pipe connection part (32) is made of a hollow pipe body and is formed to be long vertically. The water supply pipe (10) is connected to the water supply pipe connection part (32) to supply firefighting water.

[0032] A corrugated pipe section (34) is installed at the lower part of the above-mentioned water supply pipe connection section (32). The above-mentioned corrugated pipe section (34) is a general corrugated pipe, so a detailed description is omitted. The above-mentioned corrugated pipe section (34) is installed between the above-mentioned water supply pipe connection section (32) and the sprinkler connection section (36) to be described later, and can be contracted and extended. When contracted, it is received inside the corrugated pipe fixing body (20), and when extended, it can pass through the ceiling panel (C) and extend to the lower part of the ceiling panel (C) (see FIG. 3).

[0033] The upper end of the corrugated pipe section (34) is connected to the water supply pipe connection section (32), and the lower end is connected to the sprinkler (40) to be described later, serving to supply firefighting water delivered through the water supply pipe connection section (32) to the sprinkler (40) to be described later.

[0034] In addition, the corrugated pipe section (34) can be extended when a fire occurs as shown in FIG. 3, thereby moving the sprinkler (40) described later toward the lower direction of the ceiling panel (C), and the upward and downward movement of the sprinkler (40) described later can be guided by the contraction and extension operation of the corrugated pipe section (34).

[0035] A sprinkler connection part (36) is installed at the lower part of the corrugated pipe section (34). The sprinkler connection part (36) is formed as a hollow pipe body, similar to the water supply pipe connection part (32), and is formed vertically. The upper end of the sprinkler connection part (36) is connected to the corrugated pipe section (34), and the lower end is connected to the sprinkler (40) to be described later, serving to supply firefighting water to the sprinkler (40).

[0036] A sprinkler (40) is installed at the bottom of the above-mentioned expandable supply hose (30). The above-mentioned sprinkler (40) is a standard sprinkler, so a detailed description is omitted. The above-mentioned sprinkler (40) is installed at the bottom of the above-mentioned expandable supply hose (30) and serves to spray firefighting water into the fire suppression area in the event of a fire.

[0037] A catch panel (42) is installed on the periphery of the sprinkler (40). The catch panel (42) is formed in the shape of a disc and is formed to protrude radially on the periphery of the sprinkler (40). The catch panel (42) has a diameter larger than the through hole (H) and is caught and fixed to the lower surface of the ceiling panel (C). The sprinkler (40) can be caught and fixed to the lower surface of the ceiling panel (C) by the catch panel (42).

[0038] A lifting / lowering member (50) is installed on the upper surface of the ceiling panel (C) or on the upper surface of the fixing flange (28). A plurality of the lifting / lowering members (50) may be installed on each side of the corrugated pipe fixing body (20). The lifting / lowering members (50) are fixedly installed on each side of the hanging panel (42) and serve to move the sprinkler (40) up and down.

[0039] The above lifting / lowering member (50) is mainly composed of a lifting / lowering cable (52), a cable bobbin (54), a cable motor (56), etc.

[0040] The above lifting cable (52) is a general metal wire or metal cable, and a detailed description is omitted. One end of the above lifting cable (52) is fixedly installed on the above locking panel (42), and the other end is wound and fixed to the cable bobbin (54) to be described later. The above lifting cable (52) is fixedly installed on each side of the upper surface of the above locking panel (42) and is wound and unwound to move the above locking panel (42) and the above sprinkler (40) up and down.

[0041] A cable bobbin (54) is installed at the end of the above-mentioned lifting cable (52). The above-mentioned cable bobbin (54) is a general bobbin or spool, so a detailed description is omitted. As shown in FIG. 2, the lifting cable (52) is wound around the outer surface of the above-mentioned cable bobbin (54), and the lifting cable (52) can be wound and unwound depending on the forward and reverse rotation of the above-mentioned cable bobbin (54).

[0042] A cable motor (56) is installed on one side of the cable bobbin (54). The cable motor (56) is a general motor, so a detailed description is omitted. The drive shaft (not shown) of the cable motor (56) is fixedly connected to the cable bobbin (54) and serves to rotate the cable bobbin (54) in forward and reverse directions.

[0043] That is, the cable bobbin (54) is rotated in forward and reverse directions by the cable motor (56), and as a result, the lifting cable (52) can be wound and unwound on the cable bobbin (54).

[0044] And, the locking panel (42) and the sprinkler (40) can be moved up and down from the bottom of the ceiling panel (C) by the winding and unwinding operation of the lifting and lowering cable (52).

[0045] A cable guide hole (58) is formed in the ceiling panel (C) and the fixing flange (28). The cable guide hole (58) has a diameter larger than that of the lifting cable (52) and is formed to penetrate vertically through the ceiling panel (C) and the fixing flange (28). The cable guide hole (58) is positioned at the bottom of the cable bobbin (54) so ​​that the lifting cable (52) passes through and is guided toward the catch panel (42).

[0046] That is, the cable guide hole (58) has the lifting cable (52) pass through it and can be connected to the hanging panel (42) positioned at the bottom of the ceiling panel (C).

[0047] A guide roller (60) is installed inside the ceiling panel (C). The guide roller (60) is a general roller, so a detailed description is omitted. The guide roller (60) is rotatably installed on each side of the cable guide hole (58). The guide roller (60) is rotatably installed inside the ceiling panel (C) and serves to guide the up and down movement of the lifting cable (52) passing through the cable guide hole (58).

[0048] A hook (62) is installed on the lower surface of the ceiling panel (C). The hook (62) is formed in a hook shape and is installed on each side of the hook panel (42). The hook panel (42) can be fixed by being hooked inside the hook (62) and secured to the lower surface of the ceiling panel (C).

[0049] A temperature sensor (64) may be installed on the lower surface of the ceiling panel (C). The temperature sensor (64) is a general temperature sensor (64), so a detailed description is omitted. The temperature sensor (64) is installed on the lower surface of the ceiling panel (C) and serves to detect the ambient temperature.

[0050] An air control pipe (70) is installed in the above water supply pipe connection part (32). The air control pipe (70) is a general pipe or piping, so a detailed description is omitted. The air control pipe (70) is connected to the above water supply pipe connection part (32) and is installed at an upward incline on the above water supply pipe connection part (32). The air control pipe (70) communicates with the above water supply pipe connection part (32) and serves to guide the injection of compressed air into the above expansion supply hose (30) or to guide the intake of air into the above expansion supply hose (30) by the compressed air injection member (76) and vacuum member (78) to be described later.

[0051] First and second branch pipes (72, 74) are installed at the ends of the air control pipe (70). One end of the first branch pipe (72) is connected to the air control pipe (70), and the other end is connected to a compressed air injection member (76) to be described later, serving to deliver compressed air to the air control pipe (70).

[0052] In addition, one end of the second branch pipe (74) is connected to the air control pipe (70), and the other end is connected to the vacuum member (78) to be described later, so that the air suction operation of the expandable supply hose (30) can be performed.

[0053] A compressed air injection member (76) may be installed in the first branch pipe (72). The compressed air injection member (76) is a general compressor or compressor, and a detailed description is omitted. The compressed air injection member (76) serves to extend the expansion supply hose (30) by injecting compressed air into the expansion supply hose (30).

[0054] That is, when high-pressure compressed air is temporarily injected into the expandable supply hose (30) by the compressed air injection member (76) to release the locking fixation of the locking panel (42) by the locking hook (62) in the event of a fire, the locking hook (62) is elastically deformed by the pressing force of the locking panel (42), and as a result, the locking fixation of the locking panel (42) can be released.

[0055] A vacuum member (78) may be installed in the second branch pipe (74). The vacuum member (78) is a general vacuum pump, so a detailed description is omitted. The vacuum member (78) serves to guide the contraction of the expandable supply hose (30) by sucking in air inside the expandable supply hose (30).

[0056] That is, when the fire is extinguished, the vacuum member (78) is activated to suck in the air inside the expansion supply hose (30), thereby enabling the rapid contraction of the expansion supply hose (30).

[0057] The operation of a fire prevention device including a sprinkler of the present invention having the above-described configuration will be examined below with reference to FIGS. 1 to 5.

[0058] First, the ambient temperature is detected by a temperature sensor (64) installed on the lower surface of the ceiling panel (C).

[0059] When the ambient temperature of the sprinkler (40) is detected by the temperature sensor (64) to be 68°C or higher, it is determined that a fire has occurred.

[0060] In the event of a fire, high-pressure compressed air is injected into the expansion supply hose (30) by the compressed air injection member (76), and accordingly, the locking fixation of the locking panel (42) by the locking hook (62) is released.

[0061] With the locking of the locking panel (42) by the locking hook (62) released, firefighting water is supplied through the water supply pipe (10), and firefighting water is sprayed into the fire area through the sprinkler (40).

[0062] After the firefighting water is sprayed by the sprinkler (40), the lifting / lowering member (50) is operated. The lifting / lowering cable (52) of the lifting / lowering member (50) supports both sides of the locking panel (42) and is wound and unwound to move the sprinkler (40) up and down from the bottom of the ceiling panel (C).

[0063] The sprinkler (40) can be repeatedly moved up and down by the lifting and lowering member (50) while spraying fire extinguishing water from the lower part of the ceiling panel (C).

[0064] As a result, the fire suppression area can be expanded by the sprinkler (40), and in particular, since fires generally occur mainly in the lower part of the room, the spray distance is shortened and the water is sprayed directly to the point of ignition, thereby improving the fire suppression time and fire suppression efficiency.

[0065] And, if the ambient temperature of the sprinkler (40) is detected to be below a certain temperature by the temperature sensor (64), it is determined that the fire suppression is complete.

[0066] When fire suppression is complete, the spraying of firefighting water by the sprinkler (40) is stopped.

[0067] After the supply of firefighting water by the sprinkler (40) is interrupted, the lifting cable (52) of the lifting member (50) is wound, and the lifting operation of the sprinkler (40) is performed.

[0068] At the same time, the internal air of the expandable supply hose (30) is sucked in by the vacuum member (78), so that the contraction of the expandable supply hose (30) can occur together with the upward movement of the sprinkler (40).

[0069] That is, the sprinkler (40) is raised by the winding operation of the lifting / lowering member (50) and the suction operation of the vacuum member (78) and is fixed by being caught on the lower surface of the ceiling panel (C), and the expandable supply hose (30) is contracted and can be accommodated inside the corrugated pipe fixing body (20).

[0070] In the fire prevention device including the sprinkler according to the present invention as described above, the sprinkler (40) is installed to be movable up and down from the bottom of the ceiling panel (C), thereby enabling fire suppression over a wide range and expanding the fire suppression area.

[0071] In addition, since firefighting water can be sprayed directly down to the area below the fire, fire suppression time can be shortened and fire suppression efficiency can be improved.

[0072] In addition, after the fire is extinguished, the sprinkler (40) and the expansion supply hose (30) automatically return to their original positions, which improves convenience of use and allows for quick post-fire damage treatment.

[0073] In the foregoing, although all components constituting an embodiment according to the present invention have been described as being combined or operating in combination, the present invention is not necessarily limited to such embodiments. That is, within the scope of the purpose of the present invention, all components may be selectively combined in one or more ways to operate. Furthermore, terms such as "include," "constitute," or "have" described above, unless specifically stated otherwise, mean that the relevant component may be inherent; thus, they should be interpreted as allowing for the inclusion of additional components rather than excluding other components. All terms, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains, unless otherwise defined. Terms commonly used, such as those defined in advance, should be interpreted in accordance with their meaning in the context of the relevant technology and should not be interpreted in an ideal or overly formal sense unless explicitly defined in the present invention.

[0074] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols

[0075] 10. Water supply piping 20. Corrugated pipe fixing body 22. Accommodation space 24. Withdrawal hole 26. Fastener 28. Fixed flange 30. Flexible supply hose 32. Water supply pipe connection 34. Corrugated pipe section 36. Sprinkler connection section 40. Sprinkler 42. Stopper panel 50. Lifting / lowering member 52. Lifting / lowering cable 54. Cable bobbin 56. Cable motor 58. Cable guide hole 60. Guide roller 62. Hook 64. Temperature sensor 70. Air control pipe 72. First branch pipe 74. Second branch pipe 76. Compressed air injection member 78. Vacuum element

Claims

Claim 1 A water supply pipe positioned on the upper part of the ceiling panel and supplying firefighting water; a corrugated pipe fixing body positioned on the upper part of the ceiling panel, having a receiving space formed inside, a withdrawal hole formed on the bottom surface communicating with a through hole formed in the ceiling panel, and a fastening hole formed on the top surface communicating with the receiving space; a sprinkler positioned on the lower part of the ceiling panel; an expandable supply hose installed inside the corrugated pipe fixing body, formed in the shape of a corrugated pipe to enable contraction and extension movements, with one end connected to the water supply pipe and the other end connected to the sprinkler to move the sprinkler toward the lower direction of the ceiling panel and supply firefighting water to the sprinkler in the event of a fire; a lifting / lowering cable formed in the shape of a cable, installed through the ceiling panel and fixedly installed on both sides of the sprinkler to move the sprinkler up and down when the expandable supply hose contracts and extends; and a bobbin-shaped cable installed on the upper surface of the ceiling panel, the A lifting / lowering member comprising a cable bobbin in which a lifting / lowering cable is wound and unwound, and a cable motor fixedly installed on one side of the cable bobbin to rotate the cable bobbin in forward and reverse directions; a cable guide hole formed through the corrugated pipe fixing body and the ceiling panel, respectively, to guide the up and down movement of the lifting / lowering cable; a guide roller installed inside the ceiling panel, formed in a roller shape, installed on each side of the cable guide hole, and guiding the winding and unwinding operation of the lifting / lowering cable; a catch panel formed protruding radially from the circumference of the sprinkler, having a diameter larger than the through hole, and fixed by being caught on the lower surface of the ceiling panel; a catch hook installed on the lower surface of the ceiling panel to selectively catch and fix the catch panel; a temperature sensor installed on the lower surface of the ceiling panel to detect ambient temperature and to determine whether a fire has occurred based on the detected ambient temperature; and the expandable supply hose An air control pipe connected to the water supply pipe connection at an upward incline and communicating with the expansion supply hose; a first branch pipe and a second branch pipe communicating with the end of the air control pipe;A fire prevention and control device comprising: a sprinkler including a compressed air injection member installed in the first branch pipe, which extends the expandable supply hose by injecting compressed air into the interior of the expandable supply hose upon the occurrence of a fire and releases the locking fixation of the locking panel by the locking hook; and a vacuum member installed in the second branch pipe, which guides the contraction of the expandable supply hose by sucking in the internal air of the expandable supply hose upon completion of fire suppression.

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