JP5491832B2 - Refractory material arrangement tool - Google Patents

Description

  The present invention relates to a refractory material disposing tool used for disposing a refractory material in a gap between an inner surface of a through-hole penetrating a fireproof compartment in the thickness direction and an insertion member inserted into the through-hole.

  In order to allow the wiring / pipe material (insertion body) to penetrate through the fire prevention compartment floor (fire prevention compartment) in the building, a through hole is formed in the fire prevention compartment floor. And in the fire prevention division floor, a fireproof material is arrange | positioned between a through-hole and wiring and piping material, and the fireproof division floor is provided with the fireproof structure. In this fireproof structure, a fireproof material disposing tool is installed on the fireproof compartment floor in order to dispose the fireproof material in the through hole. As this refractory material disposing tool, for example, a fireproof filler support fitting disclosed in Patent Document 1 can be cited.

  As shown in FIG. 7A, the fireproof filler support fitting 90 is inserted into the inner surface of the through hole Ba (the insertion hole in Patent Document 1) and the through hole Ba of the fire prevention compartment floor B (the housing in Patent Document 1). An annular receiving portion 91 that receives and supports the refractory material (fireproof filler in Patent Document 1) filled in the annular space between the inserted insertion body and the inserted body is provided. Furthermore, the fireproof filler support fitting 90 includes a latching portion 92 that extends from a plurality of locations of the catching portion 91 and can be locked and fixed to the opening edge of the through hole Ba. Furthermore, the fire-proof filler support fitting 90 cuts one place in the circumferential direction of the receiving portion 91, and a weak portion 93 that can be plastically deformed is formed at one or more places in the circumferential direction of the receiving portion 91. ing.

  And with respect to the insertion body inserted through the through hole Ba, the receiving portion 91 is opened by expanding the diameter of the insertion portion corresponding to the outer diameter of the insertion body, and the insertion body is accommodated in the receiving portion 91. Like that. Next, the receiving portion 91 is operated to be reduced in diameter via the fragile portion 93 and is closed, so that the receiving portion 91 is externally fitted to the insertion body, and the fire-proof filler support fitting 90 is moved to the through hole Ba side. The latching part 92 is moved and locked to the opening edge of the through hole Ba, and the receiving part 91 is positioned in the through hole Ba. And by making the receiving part 91 support a refractory material, a refractory material can be arrange | positioned in the clearance gap between through-hole Ba inner surface and an insertion body.

  However, as shown in FIG. 7A, the latching portion 92 of the fireproof filler support fitting 90 is formed in an elongated plate shape. For this reason, as shown in FIG. 7B, in a state where the fireproof filler support fitting 90 is installed in the through hole Ba, the space between the inner surface of the through hole Ba and the side surface of the latching portion 92 facing the inner surface. In this case, a gap C is formed. When a fire or the like occurs, the expanded refractory material is unlikely to enter the gap C, and there is a possibility that flames or smoke may flow into the floor via the gap C, resulting in a deterioration in fire resistance. This gap is particularly noticeable when the through-hole Ba is a round hole. Even if the through-hole Ba is a square hole, a gap occurs when the inner surface of the through-hole Ba is formed in an uneven shape.

  Therefore, there is a refractory material disposing tool in which a portion corresponding to the latching portion 92 of the fireproof filler support metal fitting 90 is formed in a wire shape (for example, see Patent Document 2). The fire prevention material receiver for fire prevention measures of patent document 2 is provided with the receiving material made from a refractory material suspended in a through-hole. A concave portion addressed to the outer periphery of the insertion body is formed in the peripheral portion of the receiving member. Moreover, the wire which hooks on the opening edge of a through-hole is latched by the receiving material. And in the state in which the fire prevention material holder for fire prevention measures was installed in the fire prevention division floor, a fireproof material is supported on a receiving material. According to the fireproof material holder for fire protection measures, even if a gap is formed between the inner surface of the through hole and the wire, the fireproof material expands to surround the wire in the event of a fire, etc. Will not drop.

JP 2007-211151 A Japanese Utility Model Publication No. 4-62982

  However, in the fire prevention material receiver for fire protection measures of Patent Document 2, if the weight of the refractory material is large, the wire cannot be supported by the wire, or the wire is deformed by the expansion pressure of the refractory material. There was a problem that the fireproof material could not be maintained.

  The present invention has been made paying attention to such problems existing in the prior art. The purpose is to provide a refractory material disposing tool that can eliminate the gap between the inner surface of the through hole and the extending portion when a fire or the like occurs and can maintain the state in which the refractory material is disposed by the extending portion. Is to provide.

  In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a refractory material is provided in a gap between an inner surface of a through hole penetrating the fire protection compartment in a thickness direction and an insertion body inserted into the through hole. A refractory material disposing tool used for disposing, wherein a hooking portion that is hooked on an opening edge of the through hole in the fireproof compartment and the refractory material is disposed in the through hole. For this purpose, a metal plate-like extension portion that extends from the hooking portion and is disposed in the through-hole so as to extend in the direction in which the axis of the through-hole extends, the penetration portion in the extension portion It is formed from a thermally expandable refractory material integrally provided at a position facing the inner surface of the hole.

The gist of the invention according to claim 2 is that, in the refractory material disposing tool according to claim 1, the thermally expandable refractory material is compressible.
The gist of the invention according to claim 3 is that, in the refractory material disposing tool according to claim 1 or 2 , the thermally expandable refractory material has adhesiveness.
Invention of Claim 4 is the refractory material arrangement | positioning tool as described in any one of Claims 1-3. WHEREIN: The said heat-expandable refractory material is the said extension part from the said latching part. The gist is that it is provided continuously along the extending direction.

The invention according to claim 5, in refractory material distribution設具as claimed in any one of claims 1 to 4, wherein the heat expandable refractory material, from the engagement portion of the extending portion The gist of the present invention is that it is provided over the entire width direction orthogonal to the extending direction.

The invention described in claim 6 is the refractory material distribution設具as claimed in any one of claims 1 to 5, wherein the thermally expandable refractory material, in the fire partition body at said engagement portion The gist is that it is also provided at a position facing the opening edge.

The invention according to claim 7, in refractory material distribution設具as claimed in any one of claims 1 to 6, together with the supporting portion of the refractory material is provided on the extension portion, wherein The gist is that the latching portion, the extending portion, and the supporting portion are integrally formed of a single metal plate.

  According to the present invention, it is possible to eliminate a gap between the inner surface of the through hole and the extended portion when a fire or the like occurs, and to maintain a state in which the refractory material is disposed by the extended portion.

The disassembled perspective view which shows the fireproof structure of a fire prevention division floor. (A) is a perspective view which shows a refractory material arrangement | positioning tool, (b) is a perspective view which shows the back side of a refractory material arrangement | positioning tool, (c) is a side view which shows a refractory material arrangement | positioning tool. The perspective view which shows the state which installed the refractory material arrangement | positioning tool in the fire prevention division floor. (A) is a sectional side view showing a state in which a refractory material disposing tool is installed on the fire prevention compartment floor, and (b) is a plan sectional view showing a state in which the refractory material disposing tool is installed on the fire prevention compartment floor. The top view which installed the refractory material arrangement | positioning tool in the fire prevention division floor. The perspective view which shows another example of a refractory material arrangement | positioning tool. (A) is a perspective view which shows the filler support bracket for fire protection of background art, (b) is a figure which shows the state which installed the filler support bracket for fire protection.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, the fire prevention compartment floor W as a fire prevention compartment is made of concrete, and the fire prevention compartment floor W has a round hole shape through which the wiring / pipe material group G penetrates as an insertion body. The hole Wa is formed so as to penetrate in the vertical direction (thickness direction) of the fire prevention compartment floor W. The wiring / piping material group G is formed by collecting a plurality of wiring / piping materials arranged in a building.

  In the fire protection compartment floor W, the fireproof material 10 is disposed between the inner surface of the through hole Wa and the wiring / pipe material group G facing the inner surface, so that a fireproof structure is formed on the fire protection compartment floor W. ing. The refractory material 10 is formed from a heat-expandable heat-resistant material. This heat-expandable heat-resistant material is a rubber (heat-expandable rubber) that has been molded into a predetermined shape (through a molding process) by mixing an expandable material whose volume expands more than twice that before heating when it receives heat of 300 ° C. or higher. ) Through a vulcanization step. The vulcanization step is a step of obtaining a product having rubber elasticity by applying heat to the rubber that has undergone the molding step to cause a vulcanization (crosslinking) reaction or an adhesion reaction.

Next, the refractory material disposing tool 20 for disposing the refractory material 10 in the through hole Wa will be described.
As shown in FIGS. 2A to 2C, the refractory material disposing tool 20 is formed by bending a single metal plate. The refractory material disposing tool 20 includes a hooking portion 21 that is hooked to the opening edge of the through hole Wa in the fireproof section floor W. The latching portion 21 has a flat plate shape and a rectangular shape, and the latching portion 21 is formed with a fixing hole 21a through which a fixing screw (not shown) can be inserted.

  The refractory material disposing tool 20 includes an extending portion 22 that extends from the hooking portion 21. The extending portion 22 is formed in an elongated plate shape, and the long side direction thereof is formed so as to be orthogonal to the engaging portion 21, and the engaging portion 21 is integrated with one end of the extending portion 22. . As shown in FIG. 3, in a state where the latching portion 21 is latched on the opening edge of the through hole Wa, the extended portion 22 extends in the direction in which the central axis L that is the axis of the through hole Wa extends. It is designed to extend. In other words, the extended portion 22 extends in the thickness direction of the fire protection compartment floor W in a state where the hook portion 21 is hooked on the opening edge portion of the through hole Wa.

  As shown in FIG. 2, the refractory material disposing tool 20 includes a support portion 23 extending from the other end of the hook portion 21. The support portion 23 has a flat plate shape and a rectangular shape. The support part 23 is formed so as to be orthogonal to the long side direction of the extension part 22, and the support part 23 is integrated with the other end of the extension part 22. The direction in which the support part 23 extends from the extension part 22 is opposite to the direction in which the latch part 21 extends from the extension part 22, and the latch part 21 and the support part 23 are in the opposite direction across the extension part 22. It extends toward. For this reason, as shown in FIG. 3, in a state where the latching portion 21 is latched on the opening edge portion of the through hole Wa, the support portion 23 is directed from the inner surface of the through hole Wa toward the central axis L of the through hole Wa. It is designed to extend. Further, the extension length of the hook portion 21 from the extension portion 22 and the extension length of the support portion 23 from the extension portion 22 are different, and the extension length of the support portion 23 is the extension of the hook portion 21. It is longer than the installation length. In addition, the extension length of the support part 23 and the latching | locking part 21 may be the same. Further, a plurality of grooves 23 a are formed in the support portion 23 so as to extend in the short side direction of the support portion 23.

  As shown in FIG. 2B, in the refractory material disposing tool 20, a thermally expandable refractory material 24 is integrally provided on the side surfaces 21 b and 22 a that are continuous from the hook portion 21 to the extending portion 22. The side surface 21b of the latching portion 21 is a surface that comes into contact with the opening edge when the latching portion 21 is latched to the opening edge of the through hole Wa. The side surface 22a is a surface that faces the inner surface of the through hole Wa when the hook portion 21 is hooked to the opening edge of the through hole Wa.

  The heat-expandable refractory material 24 has adhesiveness, and is adhered to the side surface 21b of the latching portion 21 and the side surface 22a of the extending portion 22 by its adhesive strength. The heat-expandable refractory material 24 has a property that when heated at 300 ° C. or higher, the volume expands to twice or more that before heating. The heat-expandable refractory material 24 is continuously provided in the long side direction of the hooking portion 21 and is continuously provided in the long side direction of the extending portion 22. That is, the thermally expandable refractory material 24 is continuously provided along the extending direction of the extending portion 22 from the hook portion 21. Further, the heat-expandable refractory material 24 is also provided at the corner portion that becomes the boundary between the hook portion 21 and the extended portion 22, and heat is continuously generated from the side surface 21 b of the hook portion 21 to the side surface 22 a of the extended portion 22. An inflatable refractory material 24 is provided. For this reason, in each of the latching portion 21 and the extending portion 22, there is no position where the thermally expandable refractory material 24 is divided in the long side direction of the latching portion 21 and the extending portion 22.

  The heat-expandable refractory material 24 is provided inward from the edges on both long sides of the hooking portion 21 and the extending portion 22. Moreover, as shown in FIG.2 (c), the thermally expansible refractory material 24 is provided so that it may become thicker than each thickness of the latching | locking part 21 and the extending part 22, and when compressed, it will become thin. It has become.

  In order to form a fireproof structure using the fireproof material disposing tool 20 and the fireproof material 10 having the above-described configuration, as shown in FIG. 3 in a state where the wiring / pipe material group G is inserted through the through hole Wa (FIG. 3). The wiring / pipe material group G is not shown), and the refractory material disposing tool 20 is arranged so that the thermally expandable refractory material 24 faces the opening edge of the through hole Wa and the inner surface of the through hole Wa. Set up. And the latching | locking part 21 is latched to the opening edge part of the through-hole Wa, sticking the heat-expandable refractory material 24 to the opening edge part of the through-hole Wa. At the same time, the thermally expandable refractory material 24 is adhered to the inner surface of the through hole Wa. Then, the refractory material disposing tool 20 is mounted on the fire prevention compartment floor W. At this time, the extending portion 22 is disposed in the through hole Wa so as to extend along the central axis L of the through hole Wa, and the support portion 23 extends from the inner surface of the through hole Wa toward the central axis L. It arrange | positions in the through-hole Wa.

  Further, as shown in FIGS. 4A and 4B, the side surface 22a of the extending portion 22 has a planar shape, and the inner surface of the through hole Wa facing the side surface 22a has an arc shape, and the extending portion A gap S is formed between the side surface 22a of 22 and the inner surface of the through hole Wa. However, in the present embodiment, the heat-expandable refractory material 24 is attached to the side surface 22 a of the extended portion 22. For this reason, when the extended portion 22 is pressed toward the inner surface of the through hole Wa, the thermally expandable refractory material 24 is compressed between the extended portion 22 and the inner surface of the through hole Wa and is attached to the inner surface of the through hole Wa. Worn. Therefore, a part of the gap S between the side surface 22 a of the extending portion 22 and the inner surface of the through hole Wa is closed by the thermally expandable refractory material 24.

  And after installing the refractory material arrangement | positioning tool 20 in the circumferential direction of the through-hole Wa at equal intervals, as shown in FIG. 5, the refractory material 10 is supported by each support part 23, and the refractory material 10 is made to pass through the hole Wa. The refractory material 10 is filled in the gap between the inner surface of the through hole Wa and the wiring / pipe material group G. Further, a putty-like refractory material (not shown) is formed in a gap formed between the wiring and piping material of the wiring / piping material group G or in a gap formed between the wiring / piping material group G and the refractory material 10. ). Then, a fireproof structure is formed on the fireproof compartment floor W.

  In a building in which a fireproof structure is formed on the fire prevention compartment floor W, it is assumed that a fire or the like has occurred under the fire prevention compartment floor W and the wiring / piping material group G has been burned. Then, the support part 23 and the heat-expandable refractory material 24 are heated from the lower surface side by heat generated by a fire or the like, and the heat of the support part 23 propagates through the extension part 22. Further, as the wiring / pipe material group G burns, the refractory material 10 is heated from the inner surface side, and the refractory material 10 is heated from the outer surface side by the heat propagated through the extending portion 22. Then, the refractory material 10 expands in the radial direction and the axial direction of the through hole Wa, and the gap between the inner surface of the through hole Wa and the wiring / pipe material group G is filled.

  Further, the heat-expandable refractory material 24 is heated from the extended portion 22 side by the heat propagated through the extended portion 22. Then, the heat-expandable refractory material 24 expands in the thickness direction and the axial direction, and the expanded heat-expandable refractory material 24 completely fills the gap S between the side surface 22a of the extended portion 22 and the inner surface of the through hole Wa. It is done. Further, due to the expansion of the refractory material 10, the extended portion 22 is pressed toward the inner surface of the through hole Wa, and the expanded thermal expansion refractory material 24 is pressed against the side surface 22 a of the extended portion 22 and the inner surface of the through hole Wa. To do. As a result, the through hole Wa is closed, and in particular, the gap S between the extended portion 22 and the through hole Wa is closed, and the gap S becomes a path for heat and smoke, and heat and smoke are moved to the upper side of the fire prevention compartment floor W. There will be no inconvenience of being transmitted.

According to the above embodiment, the following effects can be obtained.
(1) The heat-expandable refractory material 24 is integrally provided on the side surface 22 a of the extended portion 22. For this reason, when the refractory material disposing tool 20 is installed on the fire prevention compartment floor W, the heat-expandable refractory material 24 is disposed in the gap S between the inner surface of the through hole Wa and the side surface 22a of the extending portion 22 facing the inner surface. can do. When a fire or the like occurs, the expanded heat-expandable refractory material 24 can close the gap S between the inner surface of the through hole Wa and the side surface 22a of the extending portion 22, and the gap between the inner surface of the through hole Wa and the side surface 22a. It is possible to prevent S from becoming a path of smoke, heat, or the like. In the refractory material disposing tool 20, the extending portion 22 is formed in a rectangular shape by a metal plate. For this reason, as in Patent Document 2, in order to surround the extended portion 22 with a refractory material expanded in the event of a fire or the like and eliminate the gap, the extended portion 22 is formed in a wire shape compared to the case where the extended portion 22 is formed in a wire shape. The strength of the portion 22 can be increased. Therefore, by forming the extended portion 22 in a plate shape, the state in which the refractory material 10 is disposed in the through hole Wa by the extended portion 22 can be maintained.

  (2) The thermally expandable refractory material 24 has adhesiveness. For this reason, the heat-expandable refractory material 24 can be easily integrated with the side surface 22 a of the extended portion 22 by the adhesive force of the heat-expandable refractory material 24. Moreover, since the heat-expandable refractory material 24 has adhesiveness, the refractory material disposing tool 20 is attached to the fire-proof compartment floor W by sticking the fire-resistant material disposing tool 20 to the fire-resistant compartment floor W by the adhesive force of the heat-expandable refractory material 24 It can be easily positioned at a desired installation position. Therefore, installation work such as installing the refractory material disposing tool 20 at equal intervals in the circumferential direction of the through hole Wa can be easily performed.

  (3) The heat-expandable refractory material 24 is continuously provided along the extending direction from the hooking portion 21 of the extending portion 22. For this reason, in the state where the refractory material disposing tool 20 is installed on the fire prevention compartment floor W, the extending portion 22 extends along the direction in which the central axis L in the through hole Wa extends, and the extending direction of the extending portion 22 The direction in which the central axis L extends is the same. Therefore, since the heat-expandable refractory material 24 is continuously provided in the direction in which the central axis L extends, the direction in which the heat-expandable refractory material 24 extends in the center axis L when the heat-expandable refractory material 24 expands. Therefore, the gap S between the inner surface of the through hole Wa and the side surface 22a of the extending portion 22 can be closed.

  (4) The thickness of the heat-expandable refractory material 24 is greater than the thickness of the extending portion 22 and can be compressed and deformed. For this reason, when the heat-expandable refractory material 24 is pressed against the inner surface of the through-hole Wa, the heat-expandable refractory material 24 can be compressed and brought into close contact with the unevenness or arc of the inner surface of the through-hole Wa.

  (5) The heat-expandable refractory material 24 is also provided on the side surface 21 b of the hook portion 21. For this reason, the latching | locking part 21 can be stuck to the fire prevention division floor W with the adhesive force of the thermally expansible fireproof material 24, and the movement of the fireproof material arrangement | positioning tool 20 can be suppressed. Therefore, in order to suppress the movement of the refractory material disposing tool 20, there is no need to screw a fixing screw into the fireproof compartment floor W from the fixing hole 21a, and the refractory material disposing tool 20 can be easily installed. .

  (6) The refractory material disposing tool 20 is formed by bending a single metal plate to form the latching portion 21, the extending portion 22, and the support portion 23, and thermally expanding the extending portion 22 and the hanging portion 21. The refractory material 24 is adhered and formed. Therefore, the strength of the refractory material disposition tool 20 can be increased and the refractory material disposition tool 20 compared to the case where the latching portion 21, the extending portion 22, and the support portion 23 are integrated by welding or the like. Can be easily formed.

  (7) The refractory material disposing tool 20 is formed by bending a single metal plate to form the latching portion 21, the extended portion 22, and the support portion 23, and the thermally expandable refractory material 24 is formed on the extended portion 22. It is formed by sticking. For this reason, in the state where the heat-expandable refractory material 24 is integrated with the side surface 22 a of the extended portion 22, the heat from the wiring / piping material group G and the refractory material 10 passes through the extended portion 22 and is thermally expandable refractory It becomes easy to propagate to the material 24, and the heat-expandable refractory material 24 can be expanded quickly.

  (8) The support portion 23 is formed with a plurality of grooves 23a. And by using the groove | channel 23a, while being able to break off the support part 23 easily, the length adjustment of the support part 23 can be performed easily.

  (9) The heat-expandable refractory material 24 is provided inward from the edges on both long sides of the extended portion 22. For this reason, when the heat-expandable refractory material 24 is pressed against the inner surface of the through hole Wa, the heat-expandable refractory material 24 can be released toward the edge on the long side of the extended portion 22, and the heat-expandable refractory material 24 The material 24 can be compressed and pressed against the inner surface of the through hole Wa, and the clearance S can be closed by the escaped thermally expandable refractory material 24.

  (10) The heat-expandable refractory material 24 is provided on the hook portion 21 and the extended portion 22, and the heat-expandable refractory material 24 continues at the boundary between the hook portion 21 and the extended portion 22. For this reason, when the heat-expandable refractory material 24 expands, it is possible to prevent a portion where the heat-expandable refractory material 24 does not exist between the side surface 21 b of the latching portion 21 and the side surface 22 a of the extended portion 22.

  (11) The extending portion 22 is formed in a long and thin plate shape with a metal plate, and the side surface 22a to which the thermally expandable refractory material 24 is attached is formed in a flat shape. And by the thermally expansible refractory material 24 being affixed on the side surface 22a, the gap between the inner surface of the through hole Wa and the side surface 22a of the extending portion 22 is caused by the thermally expansible refractory material 24 that has expanded in the event of a fire or the like. S is closed. Therefore, in order to close the gap S between the inner surface of the through hole Wa and the side surface 22a of the extended portion 22, it is not necessary to form the extended portion 22 in an arc shape along the inner surface of the through hole Wa. As a result, the refractory material disposing tool 20 can be easily formed.

In addition, you may change the said embodiment as follows.
The refractory material disposing tool 20 may be formed by bending a metal plate between the hooking portion 21 and the extending portion 22, and in this case, the protruding portion protruding from the extending portion 22 is pierced into the refractory material 10. Alternatively, the refractory material 10 may be attached to the surface of the extended portion 22 opposite to the side surface 22a, and the refractory material 10 may be disposed in the through hole Wa.

○ The refractory material disposing tool 20 is formed by bending a metal plate with the hook portion 21 and the extended portion 22, and further fixing the separate support portion 23 to the extended portion 22 by welding or the like. May be.
The heat-expandable refractory material 24 may not be provided on the side surface 21b of the hook portion 21 but may be provided only on the side surface 22a of the extension portion 22.

As shown in FIG. 6, the thermally expandable refractory material 24 extends over the entire width direction (short side direction) orthogonal to the extending direction (long side direction) from the hooking portion 21 of the extending part 22. It may be provided.
(Circle) the heat-expandable refractory material 24 does not need to have adhesiveness. In this case, the non-adhesive thermally expandable refractory material 24 is adhered to the extended portion 22 with an adhesive tape or the like. Furthermore, even if the adhesive tape is stuck on the surface of the heat-expandable refractory material 24 stuck to the extending portion 22, and the heat-expandable refractory material 24 is stuck to the inner surface of the through hole Wa with this adhesive tape Good.

  ○ The refractory material disposing tool 20 has the refractory material 10 in the gap between the inner surface of the through-hole penetrating the fire-proof compartment wall as the fire-proof compartment in the thickness direction and the wiring / pipe material group G inserted into the through-hole. May be used to provide. In this case, if the thermally expandable refractory material 24 has adhesiveness, the refractory material disposition tool 20 falls by sticking the thermally expandable refractory material 24 to the upper part of the inner surface of the through hole Wa. The fireproof material disposing tool 20 can be installed on the fireproof compartment wall.

  The refractory material disposing tool 20 provides the refractory material 10 in the gap between the inner surface of the through hole penetrating through the hollow wall as the fire prevention compartment in the thickness direction and the wiring / pipe material group G inserted into the through hole. May be used for In this case, the heat-expandable refractory material 24 is provided at a position corresponding to the pair of wall materials that form the hollow wall.

  The refractory material disposing tool 20 has a refractory material 10 in the gap between the inner surface of the through hole that penetrates the concrete floor or the concrete wall as the fire protection compartment in the thickness direction and the wiring / pipe material group G inserted into the through hole. May be used to provide Even in this configuration, since the heat-expandable refractory material 24 is deformed along the unevenness of the concrete floor or the concrete wall, the heat-expandable refractory material 24 is arranged in the gap S between the inner surface of the through hole Wa and the extended portion 22. Can be set.

  In the embodiment, the through hole Wa in which the refractory material disposing tool 20 is disposed is a round hole shape, but the through hole Wa may be a square hole shape such as a square hole. In this case, even if the planar inner surface of the through hole Wa is formed in an uneven shape, the thermally expandable refractory material 24 is deformed along the inner surface of the through hole Wa. The thermally expandable refractory material 24 is disposed in the gap S, and the gap S can be closed by the expanded thermally expandable refractory material 24 when a fire or the like occurs.

  ○ In the embodiment, the refractory material 10 and the thermally expandable refractory material 24 of the refractory material disposing tool 20 have the same properties (when the heat of 300 ° C. or higher is applied, the volume expands to twice or more that before heating). However, the refractory material 10 and the thermally expandable refractory material 24 may be different in nature. For example, when the refractory material 10 receives heat of 120 ° C. or higher, the volume expands to 3 times or more before heating, and when the thermally expandable refractory material 24 receives heat of 300 ° C. or higher, the volume becomes twice that before heating. It may be expanded as described above, or vice versa.

The refractory material disposing tool 20 may be fixed to the fire prevention compartment floor W or the fire prevention compartment wall by screwing a fixing screw into the fire prevention compartment floor W or the fire prevention compartment wall from the fixing hole 21a of the hook portion 21.
○ As an insertion body, only a single wire or pipe may be used, or only a wire or a pipe may be used.

  G: Wiring / pipe material group as an insertion body, L: Center axis as an axis, W ... Fireproof floor as a fireproof compartment, Wa ... Through hole, 10 ... Fireproof material, 20 ... Fireproof material disposing tool, 21 ... Hook part, 22 ... Extension part, 23 ... Support part, 24 ... Heat-expandable refractory material.

Claims (7)

A refractory material disposing tool used for disposing a refractory material in a gap between an inner surface of a through-hole penetrating a fire-proof compartment in a thickness direction and an insertion body inserted into the through-hole,
A hooking portion hooked to an opening edge of the through hole in the fireproof compartment,
In order to dispose the refractory material in the through hole, a metal plate-like shape is provided that extends from the latching portion and extends in the direction in which the axis of the through hole extends. An extension part;
A fire-resistant material disposing tool formed from a thermally expandable fire-resistant material integrally provided at a position facing the inner surface of the through hole in the extending portion. The refractory material disposition tool according to claim 1, wherein the thermally expandable refractory material is compressible. The refractory material disposing tool according to claim 1, wherein the thermally expandable refractory material has adhesiveness. The said heat-expandable refractory material is provided continuously along the extending direction of the said extension part from the said latching | locking part, The refractory material as described in any one of Claims 1-3. Arrangement tool. The said thermally expansible refractory material is provided over the whole width direction orthogonal to the extending direction from the said latching | locking part of the said extending part in any one of Claims 1-4. The refractory material disposition tool described. The said heat-expandable refractory material is provided also in the position which opposes the said opening edge part in the said fire protection division body in the said latching | locking part, The refractory material arrangement | positioning as described in any one of Claims 1-5. Ingredients. The extension portion is provided with a support portion for the refractory material, and the hook portion, the extension portion, and the support portion are integrally formed by a single metal plate. The fireproof material arrangement | positioning tool as described in any one of these.

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