KR100674499B1 - Apparatus of protection fire spread using cable support tray - Google Patents

Abstract

An apparatus for preventing a fire of a cable support tray from spreading in an apartment house is provided to prevent the fire from spreading through the cable when the fire is generated at the cable of the cable tray installed in the apartment house. In an apparatus for preventing a fire of a cable support tray from spreading in an apartment house, a horizontal unit(14) is formed on a cable bottom supporting frame(10) at both sides of a fixing groove(12). A compression extinguishing pipe(20) is composed of a bottom pipe(30) and a top pipe(40) for encompassing a cable and allows the top pipe(40) to elastically support the cable by a spring(45). A guide protrusion groove(33) is formed on the bottom pipe(30) at both side ends of a semi-circle pipe(41). The spring(45) is inserted into the top pipe(40) by a spring support protrusion(44). A cable support cover(50) is fixed to the horizontal unit(14) of the cable bottom supporting frame(10) through a bolt while a fixing unit(52) covers one side end of the top pipe(40). A blocking plate fixing cable cover(60) is fixed to the horizontal unit(14) of the cable bottom supporting frame(10) through the bolt while a fixing unit(62) covers the other side end of the top pipe(40). And, a fire prevention plate(70) is fixed by inserting a U shaped side frame into both ends, wherein a plurality of cable grooves(71) is formed on a bottom side.

Description

Apparatus of protection fire spread using cable support trays installed in apartments

1 is a perspective view showing a conventional cable support tray.

Figure 2 is a perspective view showing the installation state of the fire spreading prevention device of the cable support tray installed in the apartment house of the present invention.

Figure 3 is a perspective view showing a fire spreading prevention device of the cable support tray installed in the apartment house of the present invention.

Figure 4 is an exploded perspective view showing a fire spreading prevention device of the cable support tray installed in the apartment house of the present invention.

Figure 5 is a cross-sectional view taken along the line A-A of Figure 2 showing a fire spreading prevention device of the cable support tray installed in the apartment house of the present invention.

Figure 6 is an operating state of the fire spreading prevention device of the cable support tray installed in the apartment house of the present invention.

 <Brief description of symbols for the main parts of the drawings>

1: Cable support tray 2: Hanger

3: thread part 4: square pipe

5: Nut 6: Diagonal side frame

7: support bar 8: cable

10 cable lower support frame 11 fixed part

12: fixing groove 13: fixing protrusion

14: horizontal portion 20: compressed fire tube

30: lower tube 31: semi-circular tube

32: cable groove 33: guide projection groove

34: projection groove 40: upper tube

41: semicircular tube 42: cable groove

43: guide protrusion 44: spring support protrusion

45: spring 50: cable fixing cover

51: semi-circular tube 52: fixed part

53: projection hole 60: blocking plate fixing cable cover

61: semi-circular tube 62: fixed part

63: projection hall 64: the Pango government

70: fireproof shield plate 71: cable groove

72: fixed groove

The present invention relates to a fire spreading prevention device of a cable support tray installed in a multi-unit house, and more particularly, when a fire occurs in the tray structure supporting the cable of the multi-unit house, the fire burns the sheath of the cable and is adjacent. The present invention relates to a fire spreading prevention device of a cable support tray installed in a multi-family house, which prevents it from being transmitted to a nearby area.

Generally, wiring insulators are installed on ceilings and walls in order to wire wires in factories, warehouses, basements, parking lots, etc., but the wires are fixed when wiring cables. As the electric wiring is installed by tying and fixing the wires, the electric wires are tangled in a disorderly manner in the pipe or rope, and there is a danger of fire because of the bending of the wires. There was a problem that the handling and management of electric wires were difficult.

In general, many cables, such as power lines and communication lines, are installed in buildings, large apartment complexes, or factories in urban areas. Such cables are usually wired along underground ceilings or ceilings or walls of buildings. At this time, the cable is not only drastically droops down due to its own load, but also interferes with other structures, causing high damage, and hurting aesthetics.

Accordingly, the cable is generally supported by using a metal tray having appropriate structural strength. The tray has a substantially ladder-like configuration connected at regular intervals by a plurality of rungs for binding cables to the lower ends of two side beams arranged in parallel to each other. It is supported horizontally on the wall or ceiling by a hanger.

1 shows a general structure of a cable support tray 1 for supporting a cable installed in a conventional multi-unit house, and at the lower ends of two hangers 2 fixed to the ceiling, a thread part 3 is formed. The square pipe (4) through the threaded portion 3 is fixed with a nut (5), the cable support tray (1) is fixed on the square pipe (4).

The cable 8 placed in the cable support tray 1 is ignited due to leakage caused by leakage, ignition due to carbonization of organic insulators, ignition due to overheating of the connection portion, and a factor of temperature rise due to multi-line laying. Done.

In addition to these causes of fire, if a fire occurs for a variety of reasons, the sheath of the cable is made of a material that burns well and is quickly transferred over the cable. Insulation or sheathing of the cable is a polymer material that is decomposed by heat and causes secondary disasters due to toxic and corrosive smoke during combustion. Therefore, cable sheathing should be used as a flame retardant material to prevent combustion. It is desirable to install a prevention device but it is not.

Insulation or sheathing of the cable is a polymer material, and the hydrogen chloride gas generated during the combustion of the cable is harmful to the human body due to the strong toxicity of corrosive metals and respirators.

The cable burns quickly after a fire, not only knows its fire point, but also produces fumes, corrosive and toxic gases.

Even if sufficient measures are taken, unexpected cable fires may occur due to changes in the situation or unforeseen accidents, and if a fire occurs, the direct damage as well as the secondary disaster or social impact will be very large. Therefore, the following countermeasures are needed.

The present invention has been made in order to solve the problems described above, when a fire occurs in the cable supported by the cable support tray installed in the apartment house prevents the fire spreads while burning the sheath of the cable, It is an object of the present invention to provide a fire spreading prevention device for a cable support tray installed in a multi-unit house, in which fire transmission through the fire extinguishes within a certain period and causes a secondary disaster.

And since the damage to the cable due to the fire is limited to a certain section, there is no need to replace the cable as a whole, there is a purpose to ease maintenance.

The present invention is a square pipe is fixed to the threaded portion formed on the lower end of the hanger with a nut to achieve the object as described above, the side frame is fixed to both sides of the square pipe upper surface facing each other, the support bar on the inner bottom of the frame In the cable support tray which is fixed and the cable is supported on the support bar, the fixing portion is bent at both ends to be fixed to the inner bottom of the side frame of the digital bolt, and the upper surface is bent in a semi-circle downward, so that a plurality of fixing grooves are fixed. Cable lower support frame is formed at intervals, the fixing projection protruding upward in the center of the fixing groove and the horizontal portion is formed on both sides of the fixing groove; Compression evolution tube made of a lower tube and the upper tube to wrap the cable, the upper tube is elastically supported to compress the cable by the spring; Both ends of the semi-circular tube made of non-combustible material are placed and fixed to the lower support frame of the cable, and the fixing protrusions of the fixing grooves are fitted into the protrusion grooves formed on the bottom of the semi-circular tube, and the guide protrusion grooves are formed at both ends of the semi-circular tube. Lower tube; The semi-circular tube made of non-combustible material is covered and fixed on the cable to face the lower tube, and guide protrusions are formed at both ends to be inserted into the guide protrusion grooves of the lower tube, and two spring support protrusions protrude from both sides of the upper surface of the semi-circular tube. Is formed, the upper tube is inserted into the spring support projection; Bending parts are formed on both sides of the semi-circular tube, and protrusion holes are formed in the semi-circular tube, and spring supporting protrusions are inserted and moved. With the fixing part covering one end of the upper tube, the horizontal part of the cable lower support frame is bolted. Set cable fixing cover; Fixed parts bent on both sides of the semi-circular tube are formed, and the end of the semi-circular tube is formed by the bent government is fixed by bolts to the fire-retardant plate, a projection hole is formed in the semi-circular tube is inserted into the spring support protrusion is moved, Block plate fixing cable cover that is fixed to the horizontal portion of the cable lower support frame while the fixing portion covers the other end of the upper tube; Cables are installed in the apartment house, characterized in that consisting of a flame-retardant fireproof board is formed with a plurality of cable grooves at the bottom, fixed grooves are formed at both ends to be inserted into the upper bent portion of the side frame frame is fixed; Provide a fire spreading prevention device for the support tray.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

The terms or words used in the specification and claims are not to be construed as being limited to the common or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain their inventions. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

In the present invention, the square pipe is fixed to the threaded portion (3) formed on the lower end of the hanger (2) with a nut (5), the side of the square frame (4) is fixed to both sides of the upper surface of the square pipe (4) facing each other, The support bar 7 is fixed to the inner lower end of the frame 6 so that two cable lower support frames 10 are fixed to the cable support tray on which the cables are supported on the support bar 7, and the cable lower support frame 10 is The compression evolution tube 20 is placed in the fixing groove 12, the cable fixing cover 50 is fixed to one cable lower support frame 10 so as to cover the compression evolution tube 20, the other cable lower support frame ( 10) the blocking plate fixing cable cover 60 is fixed, the fire blocking plate 70 is fixed to the blocking plate fixing cable cover 60, the compression fire pipe 20 is the lower pipe 30 and the upper pipe ( 40 is composed of a cable (8) is inserted between the lower tube 30 and the upper tube 40 is fixed to the main configuration The.

The cable lower support frame 10 supports the cable 8 at regular intervals, and fixing parts 11 are bent at both ends of the cable lower support frame 10 to form bolts on the inner lower end of the side frame 6. Is fixed.

The cable lower support frame 10 has a plurality of fixing grooves 12 whose upper surfaces are bent in a semi-circle shape at a predetermined interval, and the fixing protrusions 13 protrude upward in the center of each fixing groove 12. do. Horizontal portions 14 are formed at both sides of the fixing groove 12, and the fixing portions of the cable fixing cover 50 and the blocking plate fixing cable cover 60 are fixed to the horizontal portion 14.

Compression-extinguishing tube 20, both ends of which are supported by two cable lower support frames 10, is fixed with a cable 8 inserted therein, and compression-compression tube 20 is a lower tube 30 and an upper tube ( The upper tube 40 is elastically supported to compress the cable by the spring 45 while wrapping the cable made of 40).

Compression fire tube 20 is made of a flame-retardant or non-combustible material is wrapped around the cable generated a fire, so the air does not enter the cable sheath, so the fire is turned off.

The lower tube 30 is a semi-circular tube 31 made of a non-flammable material, both ends of which are fixed to the cable lower support frame 10 and are supported by the lower grooves 34 formed on the bottom surface of the semi-circular tube 31. The fixing protrusion 13 of the fixing groove 12 formed in the frame 10 is fitted and fixed.

The cable 8 is seated and fixed to the cable groove 32 formed in the lower pipe 30, and the upper part of the cable 8 is inserted into and fixed to the cable groove 42 formed in the upper pipe 40.

Guide protrusion grooves 33 are formed at both ends of the semi-circular tube 31 so that the guide protrusions 43 of the upper tube 40 to be described later are inserted and guided.

The upper tube 40 is a semi-circular tube 41 made of a non-flammable material, is covered and fixed on the cable to face the lower tube 30, the guide projections 43 are formed at both ends of the upper tube 40 to protrude It is inserted into the guide projection groove 33 of the pipe (30).

Two spring support protrusions 44 protrude from the front and rear ends of the semi-circular tube 41, and the spring 45 is inserted into the spring support protrusions 44, and the cable fixing cover 50 and the blocking plate fixing cable cover. It is elastically supported by 60.

Cable fixing cover 50 has a fixed portion 52 is formed on both sides of the semi-circular tube 51, the projection hole 53 is formed so as to penetrate the upper and lower half of the semi-circular tube 51, the projection hole 53 The spring support protrusion 44 of the upper tube 40 is inserted through the movement.

Fixing portion 52 of the cable fixing cover 50 is fixed to the horizontal portion 14 of the cable lower support frame 10 with a bolt covering one end of the upper tube (40). The upper tube 40 is elastically supported downward by the force of a spring, one end of which is supported on the inner surface of the cable fixing cover 50.

The blocking plate fixing cable cover 60 supports the upper tube 40 and the lower tube 30 fixing the cable 8 and at the same time supports the fire stopping plate 70.

The blocking plate fixing cable cover 60 is formed with fixing parts 62 that are bent at both sides of the semicircular tube 61, and is fixed with bolts to the horizontal part 14 of the cable lower support frame 10, and has a semicircular tube 61. At the rear end of the), the fixing part 64 is bent and fixed to the fire protection board 70 with bolts.

A projection hole 63 is formed in the semicircular tube 61 of the blocking plate fixing cable cover 60 so that the spring supporting protrusion 44 is inserted and moved, and the fixing portion 62 is the other end of the upper tube 40. The bolt is fixed to the horizontal portion 14 of the cable lower support frame 10 while covering the.

The fire barrier plate 70 is made of a flame-retardant fire prevention plate is formed with a plurality of cable grooves 71 at the bottom, and fixing grooves 72 are formed at both ends to be inserted and fixed to the upper bent portion of the side frame (6). .

The fire barrier plate 70 prevents a fire generated in the cable from spreading over the fire barrier plate 70.

As described above, the present invention has an effect of preventing the fire from spreading through the cable in the event of a fire in the cable of the cable tray installed in the apartment house, and the upper tube is elastically supported downward by the spring so that the sheath of the cable is covered. Even if this melts, it continues to squeeze down to extinguish the fire.

In addition, the fire protection board installed at every section has an effect of preventing the fire from spreading over the section where the fire occurred.

Since the cable lower support frame supports the cables at regular intervals, the interference between the cables does not occur, thereby preventing the problems caused by the cable interference.

Claims (1)

A cable support tray for fixing a square pipe to a screw formed at the bottom of the hanger with a nut, and fixing the side frame to the opposite side of the square pipe on both sides, and a support bar is fixed to the inner bottom of the frame to support the cable on the support bar. To Fixing portions 11 are bent at both ends to be fixed to the inner bottom of the dichroic side frame 6 with bolts, and the upper surface is bent in a semicircle to form a plurality of fixing grooves 12 at regular intervals. A cable lower support frame 10 in which a fixing protrusion 13 protrudes upward in the center of the fixing groove 12 and horizontal portions 14 are formed on both sides of the fixing groove 12; Compression evolution tube 20 is composed of a lower tube 30 and the upper tube 40 to surround the cable, the upper tube 40 is elastically supported to compress the cable by the spring 45; Both ends of the semi-circular tube 31 made of a non-flammable material are placed and fixed to the lower cable support frame 10, the fixing projection 13 of the fixing groove 12 in the projection groove 34 formed on the bottom surface of the semi-circular tube 31 A lower tube 30 having a guide protrusion groove 33 formed at both ends of the semi-circular tube 31 to be inserted and fixed in position; Semi-circular pipe (41) made of a nonflammable material is covered and fixed on the cable so as to face the lower pipe (30), guide protrusions (43) protrudingly formed at both ends and inserted into the guide protrusion groove (33) of the lower pipe (30) The upper tube 40 has two spring support protrusions 44 protruding from both sides of the upper surface of the semi-circular tube 41, and the spring 45 is inserted into the spring support protrusions 44; Fixed parts 52 are bent on both sides of the semi-circular tube 51, and protrusion holes 53 are formed in the semi-circular tube 51 so that the spring supporting protrusions 44 are inserted and moved, and the fixed part 52 is fixed. Cable fixing cover 50 is fixed to the horizontal portion 14 of the cable lower support frame 10 while covering the one end of the upper tube (40); Fixed parts 62 are bent at both sides of the semi-circular tube 61, and a fixing part 64 is formed at the rear end of the semi-circular tube 61 to be fixed to the fire shielding plate 70 with bolts. A projection hole 63 is formed in the 61 so that the spring supporting protrusion 44 is inserted and moved, and the fixing part 62 covers the other end of the upper tube 40 of the cable lower support frame 10. Block plate fixing cable cover 60 is fixed to the horizontal portion 14 with a bolt; Fire-retardant fireproof board consisting of a plurality of cable grooves 71 are formed at the bottom, the fixing grooves 72 are formed at both ends of the fire barrier plate 70 is inserted into the upper bent portion of the side frame (6) fixed; Fire spreading prevention device of the cable support tray installed in the apartment house, characterized in that consisting of.

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