JP2003320049A - Hole-closing tool for fire-protection partition body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify structure and assembling to reduce a manufacturing cost and an installing cost. <P>SOLUTION: In this tool, a closing part 2 capable of closing an opening 1A of a through-hole 1 of a fire-protection partition body under the condition where a long body C is throughly inserted into the through-hole 1 of the fire- protection partition body, and a fire-spread blocking part 4 capable of holding a thermal-expansible heat-resistant filler D1 under the condition where it is fit around a portion of the long body C projected from the through-hole 1, and capable of fitting internally a restriction member 3 for restricting the portion of the long body C projected from the through-hole 1 are constituted by assembling a plurality of split type bodies 10 around the long body C throughly penetrated into the through-hole 1 via a connecting means E. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hole closing jig for a fireproof partition which forms a fireproof structure with respect to a through hole formed in a floor or the like for inserting a long body such as electric power or electric cables. Regarding

[0002]

2. Description of the Related Art Conventionally, as a hole closing jig AA for this type of fireproof compartment, for example, as shown in FIG. 15, an upper receiving portion 111 capable of being filled with a refractory material and a heat-resistant filling material in advance. The elongated body 300 such as an electric power cable or the like in which the half-cylindrical cylindrical fitting frames 110A and 110A in which the lower receiving portions 112 filled with the material 201 are formed are inserted into the through holes 100 formed in the floor of the building. On the other hand, the hook collar 11 formed at the upper end so as to surround the elongated body 300 in the through hole portion.
3 is dropped until it comes into contact with the outer surface of the peripheral edge of the through hole 100, and then the split ring-shaped bottom plate 114 is fitted to the upper receiving portion 111.
Is attached and filled with the refractory material 202 to form a fireproof structure for the through hole 100 through which the elongated body 300 is inserted, and
A rubber restraining member 210 in the shape of a split cylinder having a receiving surface corresponding to the outer shape of the long body 300 formed inside is attached to the portion of the long body 300 protruding from the through hole 100. The rubber restraining member 210 is held by a pair of holding metal fittings 200, 200 that form a surrounding portion 230 that can be held by using a connecting means 220 such as a bolt and nut, and a load carrying portion 240 that can contact the outer surface of the peripheral edge of the through hole 100. By sandwiching the long body 300 in a tightly bound state, the vertical load of the long body 300 is passed through the through hole 100.
The rubber restraint member 21 is supported by the outer surface B1 of the peripheral edge.
There is one in which a refractory material 203 is overfilled and filled in a long body 300 portion protruding from 0 to form a fireproof structure of the long body 300 portion protruding from the through hole 100.

In the case of this conventional one, for example, when a fire occurs under the floor B and the fire heating reaches the through hole 100, the heat-resistant filling material 2 of the lower receiving portion 112 is used.
01 is thermally expanded to prevent the fire from spreading to the elongated body 300 in the through hole 100, and the fireproof material 202 filled in the upper receiving portion 111 prevents the fire from spreading. , Clamps, rubber restraint members 210
Even when the vertical load of the elongated body 300 is carried on the peripheral portion of the through-hole via and the combustion reaches the elongated body 300 in the portion protruding from the rubber restraint member 210,
Due to the presence of the refractory filler 203 filling that portion, a functional portion for preventing further spread of fire is provided.

Further, in this conventional device, a long body 300 such as an electric wire cable located at the lower entrance portion of the through hole 100 is provided.
The lower receiving portion 112 is provided corresponding to the portion, and the through hole 100
The upper receiving portion 111 is provided so as to correspond to the portion of the elongated body 300 protruding from the upper inlet of the. The reason for adopting this structure is that, for example, if a fire occurs under the floor B and the fire heating reaches the through hole 100,
When heat is applied to the elongate body 300 portion of the lower receiving portion 112, when the elongate body 300 is an electric wire cable, the covering portion swells to spread the refractory filler 201 of the lower receiving portion 112 to the upper portion. The heat-resistant filler 2 which is in a state of transmitting the heat of fire and has thermally expanded to the part where the bulging part is burnt and burned.
Although 01 is filled and the rise of the fire is stopped and the heat of the heat of the fire is weakened as a whole, the heat of the fire is still transferred upward through the expanded portion that remains without being burnt and burned. The presence of the refractory material 202 of the receiving part 111 of FIG. 1 is to prevent fire from spreading further, and to form a deterrent force for fire prevention by adopting a structurally complicated double fireproof structure.

[0005]

Therefore, in the hole-blocking jig AA for a fireproof compartment having the above structure, there is a problem that the structure is complicated, the number of parts is large, and the mounting work is troublesome. Therefore, there are problems to be solved such as reduction of product cost and reduction of installation work time.

The present invention has been made in view of the above situation, and its main problem is that the structure and assembly are simple,
An object of the present invention is to provide a hole closing jig for a fireproof partition that can reduce product costs and installation costs.

[0007]

According to a first aspect of the present invention, there is provided a characteristic feature of a hole closing jig for a fire protection partition, which is characterized in that an opening of the through hole is formed in a state where a long body is inserted into the through hole of the fire protection partition. It is possible to hold the heat-expandable heat-resistant filler in an externally fitted state on the obstructable portion and the elongated body portion protruding from the through hole, and restrain the elongated body portion protruding from the through hole. That is, the flame spread prevention portion into which the restraining member can be fitted is configured by assembling a plurality of split mold bodies around a long body that is inserted through the through hole via a connecting means.

According to the above characteristic structure, there are a structure for closing the through hole formed in the fireproof compartment, a structure for covering the heat-resistant filling body on the elongated body, and a structure for covering the restraining member on the elongated body. The structure for supporting the elongated body under load on the outer surface of the peripheral edge of the through-hole through the integration and the utilization of each component in common, and the heat resistance for supporting the elongated body and restraining the elongated body. By forming the filler and the restraint member, it is possible to form a fireproof structure in the through hole while maintaining the support structure of the elongated body even in the unlikely event of a fire in normal times. Even if the covering part of a long body such as a cable swells due to fire heat, the heat-resistant filler itself thermally expands to provide a function to prevent the long body of the outer fitting part from bulging. And strongly prevent the spread of long objects. Can, and, even if the constraining force to the elongated body of the restraining member by a fire heat is lost,
Since the heat-resistant filler maintains the restraining force against the long body, the structure is simpler than the conventional closure jig of this type, and the number of parts forming the fireproof partition structure is reduced. In addition, since the configuration can be simplified and the installation work can be easily performed due to the simplified configuration, it is possible to reduce the product cost, the installation cost, and the assembly work time. You can

According to a second aspect of the present invention, there is provided a characteristic feature of a hole closing jig for a fireproof partitioning body, wherein the split mold body is capable of externally fitting and enclosing a long body portion projecting from a through hole, and a fireproofing compartment. It is composed of a horizontal plate portion that can be brought into contact with the outer surface of the peripheral edge of the through hole of the body, and a vertical connection plate portion that is a connection corresponding portion between adjacent split mold bodies.

According to the above characteristic structure, since the structure of the split mold body is simple and the correspondence is clear, the assembly structure can be understood just by looking at it, so that the construction work can be carried out without skill. Since it can be carried out appropriately, it is possible to carry out swift and high-quality construction.

According to a third aspect of the present invention, there is provided a characteristic feature of a hole closing jig for a fireproof partition, which is heat resistant between connecting surfaces of the split molds, between a horizontal plate portion of the split molds and a peripheral edge of the through hole. The point is that the filling material is deployed.

According to the above characteristic structure, between the connecting surfaces of the split mold bodies, between the horizontal plate portion of the split mold bodies and the peripheral edge of the through hole,
Since the heat-resistant filler is provided, the closed state of the through-hole is improved, and even if a fire spreads to the long body part, the fireproof airtightness between the components is high, It is possible to form a through hole closing jig that has good fire blocking performance and smoke blocking performance.

According to a fourth aspect of the present invention, there is provided a characteristic feature of a hole closing jig for a fireproof partitioning body, wherein a positioning protrusion is formed in the closed portion so as to be in contact with or close to an inner peripheral surface of a through hole of the fireproof partitioning body. There is a point.

According to the above-mentioned characteristic structure, by placing the positioning protrusion of the closed substrate in the through hole, the closed substrate can be reliably and quickly attached to the outer surface of the peripheral edge of the through hole. It is possible to improve.

According to a fifth aspect of the present invention, there is provided a characteristic construction of a jig for closing a hole for a fire protection partition, wherein a heat-expandable heat-resistant filling body and a restraining member which are fitted in the fire spread prevention portion are elongated bodies. The point is that they are stacked along the insertion direction.

According to the above characteristic structure, for example, a notch ring-shaped restraining member, a notch ring-shaped heat-resistant filler, and the like are used to stack these along the insertion direction of the elongated body. For example, since the restraint member and the heat-resistant filling body can be directly fitted onto the long body, the structure in which the heat-resistant filling body is fitted on the long body and the restraining member on the long body are provided. It is possible to form a highly reliable structure that is directly and reliably sandwiched by the structure.

According to a sixth aspect of the present invention, there is provided a characteristic feature of a hole blocking jig for a fire protection partition, wherein a heat-expandable heat-resistant filler is fitted into the inner peripheral surface of the fire spread prevention portion and the fire spread prevention portion. The point is that it is filled in an annular space formed along an annular boundary with the outer peripheral surface of the member.

According to the above characteristic structure, the binding force by the connecting means directly acts on the restraining member via the flame spread prevention portion,
The long body can be reliably restrained, and even if a situation occurs where the restraining member burns through the long body in the unlikely event of a fire, the heat-resistant filler expands due to thermal expansion. It is possible to prevent the spread of the elongated body.

The feature of the fire blocker hole closing jig according to claim 7 of the present invention resides in that at least one restraining member 3 having thermal expansion property is fitted in the fire spread prevention portion 4.

According to the above characteristic structure, since at least one restraint member can restrain and support the elongated body and prevent the spread of fire to the portion of the elongated body where a fire is restrained, the number of parts can be reduced. The number of parts can be reduced, and the handling and workability can be improved because the number of parts is reduced.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] A hole blocking jig A for a fireproof partition according to a first embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 5, the hole-blocking jig A for a fireproof partitioning body of this embodiment is formed on a floor B which is a fireproof partitioning body made of a concrete frame or the like, and a long body C is inserted therethrough. A fireproof structure is formed for the through hole 1. The drawing shows an example in which a cable group C, which is a set of four cables such as electric wires and control wires, is inserted into the through hole 1 as a long body. Further, normally, in the building, the cable group C in the wired state is wired in a restrained state so as to be along the wiring route via a wiring fixing band, a wiring support tool, or the like.

As shown in FIG. 1, the hole-blocking jig A for a fire-proof partition has a plugging portion 2 which can plug the opening 1A of the through-hole 1 in a state where the cable group C is inserted into the through-hole 1, and a through-hole. It is possible to hold the heat-expandable heat-resistant filler D1 on the portion of the cable group C protruding from the hole 1 in an externally fitted state, and through the restraint member 3 to the portion of the cable group C protruding from the through hole 1. The spread flame prevention portion 4 capable of internally fitting the restraining member 3 that restrains the two-piece split mold bodies 10 and 10 is assembled via the connecting means E around the cable group C that passes through the through hole 1. It is composed by attaching.

The split mold body 10 is a semi-cylindrical tubular portion 1 capable of externally fitting and enclosing a portion of the cable group C projecting from the through hole 1.
0A, the outward flange-shaped horizontal plate portion 10B fixed to the lower end of the cylindrical portion 10A that abuts on the outer surface B1 of the peripheral edge of the through hole 1, and the corresponding divided mold body 10 is connected. ,
Left and right vertical connecting plate portions 10C, 10 fixedly attached to the side end of the cylindrical portion 10A and the inward end of the horizontal plate portion 10B.
It is composed of C and.

An inner collar 10a is formed along the inner circumference at the lower end of the inner circumference of the tubular portion 10A of the split mold body 10, and the central portion of the upper end of the tubular portion 10A can be bent toward the inner circumferential side. The protruding piece 10b is formed so as to support the heat-expandable heat-resistant filler D1 and the restraining member 3 housed in the cylindrical portion 10A.

The closing part 2 is a split mold body 1 divided into two parts.
0, 10 horizontal plate portion 10B, specifically, in the state of inserting the cable group C into the through hole 1 by assembling through the connecting means E around the cable group C through which the through hole 1 is inserted, A closing portion 2 that closes the opening 1A of the through hole 1 is configured.

A heat-expanding heat-resistant filling tape D2 having a width of, for example, about 5 mm is adhered along the arc on the back surface of the horizontal plate portion 10B of the split mold body 10 along the arc.
The heat-resistant filling tape D2 can be attached to the outer surface B1 around the periphery of the through hole 1 in a state where the split mold bodies 10 on the other side are connected. The heat resistant filling tape D2 can be used after removing the release paper h attached to the surface.

Further, on the back surface of the horizontal plate portion 10B, positioning projections 10D, 10D are projected in the lower surface direction along the circumference of an imaginary circle having a diameter slightly smaller than the inner diameter of the through hole, for example, at intervals of about 90 degrees. With respect to the through hole 1, the positioning protrusions 10D, 10D are brought into a state of contacting or approaching the inner peripheral surface 1a, so that the positioning with respect to the through hole 1 can be easily performed. ing. Each of the positioning protrusions 10D and 10D is fixed to one side of the metal plate having an L-shaped cross section on the back surface of the horizontal plate portion 10B by spot welding or the like. In the figure, 10k is a reinforcing rib.

Left and right vertical connecting plate portions 10 of the split mold body 10
C and 10C are provided with a bolt insertion hole 10c on one side and a female threaded portion 10d of a nut welded and fixed on the other side, a triangular pyramid-shaped positioning protrusion 10e on one side, and a triangular pyramid-shaped positioning on the other side. In the state where the recessed part 10f is provided and the mating split mold bodies 10 to be connected are aligned, the bolt insertion hole 10c and the female screw part 10d face each other, and the positioning protrusion 10e and the positioning recessed part 10f face each other. The bolt 10g is configured to be screwed into the female threaded portion 10d through the bolt insertion hole 10c so as to connect the two. Bolt 10g, bolt insertion hole 10c,
The bolt connecting portion 11 is configured by the female screw portion 10d. Here, even if the positioning protrusion 10e and the positioning recess 10f are not provided, the workability of aligning the split mold bodies 10, 10 with each other hardly changes, so the positioning protrusion 10
e and the positioning recess 10f, the vertical connecting plate portion 10
It may be configured such that it is not formed in C and 10C. In this case,
Since the manufacturing steps of the split mold bodies 10 and 10 are reduced accordingly, there is also an advantage that the manufacturability is improved.

Further, the split mold bodies 1 facing each other in a connected state.
A heat-expandable heat-resistant filler D3 is adhered to one of the vertical connecting plate portions 10C of the 0 and 10 and heat-resistant between the vertical connecting plate portions 10C and 10C of the split mold bodies 10 and 10 facing each other in the connected state. A sex filler D3 is to be provided.

The heat resistant filler D3 can be used after removing the release paper h attached to the surface.

A vertical connecting plate portion 10C of one split mold body 10
A bent portion 10h having slits formed in the upper and lower central portions is formed at the outer end, and the slit of one split mold body 10 is passed through the outer end of the vertical connecting plate portion 10C of the other split mold body 10. A hinge locking piece 10i that hinge-engages with the bent portion piece 10h is formed, and a hinge portion 10j is formed by both of them, and one split mold body 10 can be hinged horizontally with respect to the other split mold body 10. Has become. In this embodiment, the hinge 10j and the bolt connecting portion 11 constitute a connecting means E.

As shown in FIGS. 1, 4 and 5, the restraint member 3 is disposed in the lowermost layer of the fire spread prevention portion 4 and has a receiving portion 3a corresponding to the outer surface shape of the cable group C formed in the central portion. In addition, it has a columnar shape in which a split ring is formed through a cut portion 3b having a part of the outer circumference cut out, and the cut portion can be opened by hand or the like to be externally fitted and surrounded by the receiving portion 3a. You can do it. This restraint member 3
Is molded from an elastic material such as artificial rubber.

On the other hand, the heat-expandable heat-resistant filler D1 comprises a heat-expanding agent, a flame-retardant material such as an inorganic filler such as calcium carbonate, and the like.
As shown in FIG. 1, FIG. 4 and FIG. 5, the same restraint member 3 is prepared by using rubber, artificial rubber, urethane resin or other various resin materials mixed with dehydration of phosphoric acid compounds and the like, carbonized materials and the like. Since it is formed in a wall thickness and a substantially similar form and is stacked and stored along the cable group C in the fire spread prevention part 4, the number necessary for the stacked storage is prepared. . In addition, this heat-resistant filling body D1 has an insertion hole D1b having the same size as or the same size as the restraining member 3 and having the size of the cross-sectional shape of the cable group C in the central portion.
The cable group C can be accommodated in the insertion hole by opening the cut portion D1a which is formed by cutting out a part of the outer periphery.

In this embodiment, one restraint member 3 and four heat resistant fillers D1 are used, the restraint member 3 is located at the bottom, and the heat resistant filler D1 is laminated on the restraint member 3. However, in the present invention, the following various configurations and the like exist.

That is, as shown in FIG. 6, the restraint member 3 may be interposed in the middle of the laminated heat-resistant filler D1. In this case, the interposing position of the restraint member 3 may be between any layers, and the number of the heat resistant fillers D1 may be 4 or less or 4 or more.

As shown in FIG. 7, there may be a plurality of restraint members 3 or one heat-resistant filler D1. In this case as well, the stacking position of the restraint member 3 or the heat resistant filler D1 may be at any position.

As shown in FIG. 8, the restraint member 3 and the heat resistant filling body D1 may have different wall thicknesses. Also in this case, the number of the restraint members 3 and the heat-resistant filler D1
The number of can be set appropriately. FIG. 8 shows an example in which one restraint member 3 having different wall thickness and one heat resistant filling body D1 are used.

The conditions for laminating the restraint member 3 and the heat-resistant filling body D1 have been described on the assumption that they are stacked in such a height that they can be accommodated in the fire spread prevention section 4.

According to this structure, first, the heat-resistant filling tape D2 portion of each split mold body 10 and the vertical connecting plate portion 1 are formed.
The release paper h of the heat-expandable heat-resistant filler D3 portion of 0C is removed, and the restraint member 3 is externally fitted to the cable group C which is inserted through the through hole 1, as shown in FIG. Temporarily fixed, the pair of split mold bodies 10, 10 via the hinge portion 10j
Is opened to position the cable group C portion projecting from the through hole 1 together with the restraining member 3 between the tubular portion 10A and the tubular portion 10A, and the split mold bodies 10 and 1 in the opened state in the positioned state.
0 is closed to accommodate the cable group C portion projecting from the through hole 1 between the cylindrical portion 10A and the cylindrical portion 10A, and in this state, the split mold bodies 10, 10 in the closed state are attached to the outer surface B1 of the peripheral edge of the through hole 1. Place it. Before the placement, the positioning protrusions 10D ... Are accommodated in the through hole 1 while being confirmed. In this state,
The opening 1A of the through hole 1 is closed when the cable group C is inserted into the through hole 1 by the closing portion 2 configured by the horizontal plate portion 10B of the split mold bodies 10 and 10.

Next, the cylindrical portion 10A for accommodating the restraint member 3,
The heat resistant filler D1 is stacked and filled between the cylindrical portions 10A. In this state, the protruding piece 10b provided on the upper portion of the tubular portion 10A is folded back inward.

Next, for each of the bolt connecting portions 11, 11, a bolt 10g is inserted from the bolt insertion hole 10c into the female screw portion 1.
As shown in FIG. 3, the construction of the fire blocker hole closing jig A is completed by screwing the split mold bodies 10 and 10 into a connected state by screwing into the 0d. Then, the through-hole 1 is closed by the hole-blocking jig A for the fire-preventing partition thus mounted.
The load of the cable group C is supported on the outer surface B1 of the peripheral edge of the through hole 1 through the split mold bodies 10, 10 in which the portion of the cable group C projecting from the restraint member 3 and the heat-resistant filling body D1 are integrally connected. It

In this mounted state, the opening 1A of the through hole 1 is closed by the closing portion 2 while the cable group C is inserted into the through hole 1, and the cable group C portion protruding from the through hole 1 is heated. The expandable heat-resistant filling body D1 is formed in the fire spread prevention portion 4 to form a fireproof structure in the through hole 1 portion through which the cable group C is inserted.

[Second Embodiment] A hole blocking jig A for a fireproof compartment according to a second embodiment of the present invention will be described below.
Here, the same components as those of the first embodiment will be denoted by the same reference numerals, the details thereof will be omitted, and different points will be described.

As shown in FIG. 9, this fire-blocking partition hole closing jig A includes an inner peripheral surface of the fire spread prevention portion 4 and an outer peripheral surface of the restraint member 3 fitted in the fire spread prevention portion 4. The ring-shaped void portion 30 formed along the ring-shaped boundary is filled with the thermally expansive heat-resistant filling body D1.

[Third Embodiment] A hole closing jig A for a fireproof compartment according to a third embodiment of the present invention will be described below.
Here, the same components as those of the first embodiment will be denoted by the same reference numerals, the details thereof will be omitted, and different points will be described.

This fire blocking compartment hole closing jig A is shown in FIG.
As shown in, the at least one restraint member 3 having a thermal expansion property is internally fitted to the flame spread prevention portion 4.

Specifically, it has a cylindrical shape in which a receiving portion 3a corresponding to the outer surface shape of the cable group C is formed in the central portion, and a split ring is formed through a cut portion in which a part of the outer circumference is cut out. The cable group C can be externally fitted and surrounded by the receiving portion 3a by opening the cut portion with a hand or the like. The restraint member 3 is made of, for example, an inorganic filler such as calcium carbonate, an expansive material, a rubber, a synthetic resin, a dehydration material such as a phosphoric acid compound, a carbonized material, or the like, and has thermal expansion properties and is normally At times, it is in the form of a block that is rich in elastic deformation like rubber.

The restraint member 3 of this embodiment shows an example of a structure in which the heat-resistant filling body D1 and the restraint member 3 are integrally formed.

The restraint member 3 of the third embodiment has a semi-cylindrical cylindrical portion 10 of the split mold body 10, as shown in FIG.
It may be formed in a semi-cylindrical shape corresponding to A, and a receiving portion 3a corresponding to the shape of the outer peripheral surface of the cable group C may be formed in the central portion.
Alternatively, the cable group C may be constrained by the pair of constraining members 3 and 3 in a state where the cables are connected.

In this case, since the receiving portion 3a is opened, it is possible to guide the cable group C to the receiving portion 3a in a state where it is attached to the tubular portion 10A of the split mold body 10 from the beginning. The cable group C can be easily restrained together with the connection of the bodies 10, 10.

[Other Embodiments] 1) In each of the above embodiments, the pair of split mold bodies 10 and 10 are connected via the hinge portion 10j, but the present invention is not limited to this. As shown in FIG. 12, a pair of split mold bodies 10, 10 in a separated state may be connected via a bolt connecting means 11 which is a connecting means.

Further, as shown in the same figure, the vertical length of the fire spread prevention portion 4 is increased to increase the length of the fire protection portion of the cable group C projecting from the through hole 1 to improve the fire spread prevention function. May be intended.

2) In the second embodiment described above, the fire blocking partition hole closing jig A is described by connecting the split mold bodies 10 divided into two, but the present invention is not limited to this. The present invention is not limited to this, and may be configured by connecting division bodies of three divisions or four divisions.

3) In the first embodiment, an example in which the flame spread prevention portion 4 is provided with one restraint member 3 and a plurality of split ring-shaped heat-resistant fillers D1 ... along the insertion direction of the cable group C Although described, the present invention is not limited to this, and as shown in FIG. 13, the flame spread prevention portion 4 forming the diameter reduction step portion 4A at the upper and lower intermediate positions is prevented from falling from the diameter reduction step portion 4A by the diameter reduction step portion 4A. Even if the restraint member 3 is fitted in and the heat-expandable heat-resistant filler D1 is fitted on the restraint member 3, as shown in FIG. A restraint member 3 which is prevented from falling by the reduced diameter step portion 4A is fitted into the flame spread prevention portion 4 which forms the step portions 4A and 4B, and the restraining member 3 which is prevented from falling by the reduced diameter step portion 4A is fitted into the lower portion of the restraint member 3. , The heat-expanding heat-resistant filling body D1 that has been retained by the reduced diameter step portion 4B at the lower part It may be one.

4) In the above embodiment, the fire blocking partition hole closing jig A for the cable group C such as the electric power wire has been described. However, the present invention is not limited to this, and it is for air conditioning used in an air conditioner. The hole-blocking jig A for a fireproof partition for a refrigerant pipe or the like may be used.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a hole blocking jig for a fireproof partition according to a first embodiment of the present invention.

FIG. 2 is a simplified plan view showing a state before a fire blocking partition hole closing jig is attached to a long body inserted through a through hole.

FIG. 3 is a simplified plan view showing a state in which a long body inserted through a through hole is closed by a fire blocking partition hole closing jig.

FIG. 4 is a cross-sectional view showing a state in which a hole blocking jig for a fire protection compartment is attached.

FIG. 5 is a cross-sectional view showing a state in which a hole blocking jig for a fireproof partition is attached.

FIG. 6 is a cross-sectional view showing the relationship between a restraint member and a heat-resistant filling body, which is a modified example of the present invention.

FIG. 7 is a cross-sectional view showing the relationship between a restraint member and a heat-resistant filling body, which is another modification of the present invention.

FIG. 8 is a cross-sectional view showing the relationship between a restraint member and a heat-resistant filling body which is still another modification of the present invention.

FIG. 9 is a cross-sectional view showing a state in which a hole blocking jig for a fireproof partition according to a second embodiment of the present invention is attached.

FIG. 10 is an exploded perspective view showing a split mold body and a restraining member of another hole blocking jig for a fire protection partition to which the present invention is applied.

FIG. 11 is an exploded perspective view showing still another split mold body and a restraining member of a hole blocking jig for a fire protection partition to which the present invention is applied.

FIG. 12 is an exploded plan view showing a modification of the split mold body.

FIG. 13 is a cross-sectional view showing a state in which a hole blocking jig for a fire protection compartment of another embodiment is attached.

FIG. 14 is a cross-sectional view showing a state in which a hole blocking jig for a fire protection compartment of another embodiment is attached.

FIG. 15 is a schematic cross-sectional view showing a conventional hole closing jig for a fireproof partitioning body.

[Explanation of symbols]

A Fire-blocking hole blocking jig B floor (fireproof compartment) C cable group (long body) D1 heat resistant filler 1 through hole 1A opening 2 blockage 3 restraint members 4 Fire spread prevention section 5 Connection means 10 division type 10A tube 10B Horizontal plate part 10C Vertical connecting plate 10D positioning protrusion

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Katsuji Takahara             Fuji Co., Ltd. 1440 Rokuzaki, Sakura City, Chiba Prefecture             Kura Sakura Office (72) Inventor Masahiro Iwasaki             1-5-1 Kiba Stock Exchange, Koto-ku, Tokyo             Inside Fujikura (72) Inventor Toshio Takada             287 West Japan             Electric Wire Co., Ltd. (72) Inventor Koji Kaneda             2-6-1 Miyajima, Ibaraki City, Osaka Prefecture Inabaden             Machine Industry Co., Ltd.

Claims (7)

[Claims] 1. A heat-expanding heat-resistant filling material for a long body that projects from the through hole and a closing portion that can close the opening of the long hole while the long body is inserted into the through hole of the fireproof partition. While being able to hold the body in an externally fitted state, a fire spread prevention section capable of internally fitting a restraining member that restrains the elongated body portion protruding from the through hole, a plurality of split mold bodies, A hole closing jig for a fire prevention partition, which is constructed by assembling a long body that passes through a through hole through a connecting means. 2. The divided mold body is provided with a tubular portion capable of externally fitting and enclosing a long body portion protruding from the through hole, a horizontal plate portion capable of abutting on an outer surface of a peripheral edge of the through hole of the fireproof partition, and The hole closing jig for a fire protection partition according to claim 1, which is composed of a vertical connecting plate part which is a corresponding part to be connected to the split mold body. 3. The fireproof compartment according to claim 1, wherein a heat-resistant filler is provided between the connecting surfaces of the split mold bodies, between the horizontal plate portion of the split mold bodies and the peripheral edge of the through hole. Body hole closing jig. 4. The hole blocking treatment for a fire protection partition according to claim 1, 2 or 3, wherein a positioning protrusion is formed in the closed portion so as to come into contact with or approach the inner peripheral surface of the through hole of the fire protection partition. Ingredient 5. The fire protection system according to claim 1, 2, 3, or 4, wherein the heat-resistant filler and the restraining member, which are externally fitted and attached at the flame spread prevention portion, are laminated along the insertion direction of the elongated body. Hole closing jig for partition. 6. A ring-shaped cavity formed by a heat-expandable heat-resistant filling material along an annular boundary between an inner peripheral surface of a fire spread prevention portion and an outer peripheral surface of a restraint member fitted in the fire spread prevention portion. The hole closing jig for a fire protection compartment according to claim 1, 2, 3 or 4. 7. The flame spread prevention portion 4 is internally fitted with at least one restraining member 3 having a thermal expansion property.
The hole closing jig for a fireproof partition according to 3 or 4.