JP2005226725A - Fire-limit structure of penetration section and penetration section forming body forming the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire-limit structure of a penetration section enabling laying operations for tubes and wires into through-holes by simple operations and capable of easily forming a penetration section and a penetration section forming body forming the fire-limit structure. <P>SOLUTION: The through-part 13 for passing a cable 12 therein is formed in the floor 11 of a building, and the fire-limit structure is formed in the through-part 13. The fire-limit structure of the through-part 13 is formed by inserting the cable 12 in the through-part forming body 14 disposed in the through-hole 11a formed in the floor 11 and filling a fire resistant material 15 between the cable 12 and the inner peripheral surface of the through-part forming body 14. The through-hole forming part 14 is formed by assembling a pair of split bodies 18. Stacking pieces 21 are formed at one opening edge part of the split body 18. The stacking pieces 21 and the opening edge parts 22 on the inside thereof are formed overlapping with each other in the axial and circumferential directions of the split bodies 18, and a pair of stacking parts J1 are formed at the radially opposed positions of the through-part forming body 14. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a fireproof compartment structure for fireproofing a penetration portion through which pipes and cables penetrate a partition portion such as a floor of a building, and a penetration portion forming body that forms the fireproof compartment structure.

In the floor (compartment part) of a building, a fire prevention compartment structure of a penetration part is formed on the floor in order to perform fire prevention treatment on the penetration part through which pipes and cables are wired (see, for example, Patent Document 1). In order to form the fire protection compartment structure, a plurality of metal through cylinders having a rectangular tube shape are disposed in a through hole formed in a floor (slab), and each through cylinder is an outer surface. It is fixed to the floor through a fixing piece attached to the floor. Between the outer peripheral surface of each penetration cylinder and the inner peripheral surface of a through-hole, the inorganic thermal foaming filler is filled in the state expanded by thermal foaming. Cables are inserted into the through cylinders so that the cables pass through the floor, and refractory materials are interposed between the cables and the upper and lower inner peripheral surfaces of the through cylinders. Filled.
Japanese Patent Laid-Open No. 2001-346897 (pages 4 to 6, FIG. 1)

  In order to form a through-hole having the above-described fire-proof compartment structure, a cable must be inserted into the through-cylinder disposed in the through-hole and the cable can be routed through the through-hole. However, since the opening of the through cylinder is narrower and smaller than the through hole, it is very difficult to insert the cable from the end of the through cylinder into the through cylinder, and the operation of forming the through part by penetrating the cable through the through hole is difficult. There was a problem that it was very troublesome.

  The present invention has been made paying attention to the problems existing in the above-described prior art. The purpose of the invention is to provide a fire-proof compartment structure of a through-part and a fire-proof compartment structure in which the wiring work of pipes and cables to the through-hole can be performed by simple work and the through-part can be easily formed. It is in providing the penetration part formation body to form.

  In order to solve the above-mentioned problems, the invention according to claim 1 is provided in a penetration part through which a pipe / cable penetrates a partition part of a building, and is disposed in a through hole that penetrates the partition part. Fire prevention of a penetration part filled with a refractory material that expands due to heat between the inner peripheral surface of the penetration part formation body made of a non-combustible material and the pipes and cables inserted into the penetration part formation body In the partition structure, the penetration part forming body is divided into a plurality of parts along the insertion direction of the tubes and cables with respect to the penetration part formation body, or the division body along the insertion direction of the pipes and cables. It is formed by assembling connected divided bodies that are connected to each other, and the penetrating part forming body is provided with a superposed part by polymerizing the edges of the adjacent divided bodies. The segment moves with the direction of cable insertion and the expansion of the refractory material. Along the direction, and summarized in that the edge portions are formed by polymerization.

  According to a second aspect of the present invention, in the fireproof compartment structure of the penetrating portion according to the first aspect, the overlapping portion includes an overlapping piece formed on one edge portion of the adjacent edge portions, and the other edge portion. It is formed by polymerization with.

The gist of the invention according to claim 3 is that, in the fire prevention compartment structure of the penetrating part according to claim 2, the overlapping part is formed so that the overlapping piece covers the outside of the other edge part. .
According to a fourth aspect of the present invention, in the fireproof compartment structure of the penetrating portion according to any one of the first to third aspects, the penetrating portion forming body includes the inside of the through hole of the penetrating portion forming body. The gist of the present invention is that a hook portion is provided to be locked to the partition portion in the state of being disposed.

  The invention according to claim 5 is the fireproof compartment structure of the penetrating portion according to claim 4, wherein the flange portion is formed by assembling the flange pieces provided in each of the divided bodies, The end portions of the adjacent flange pieces are superposed on the flange portion to provide a overlap portion, and the overlap portion is formed in the width direction of the flange portion and the direction in which the divided body moves as the refractory material expands. Along with this, the end points of the flange pieces are formed by polymerization.

  According to a sixth aspect of the present invention, in order to form a fire prevention compartment structure of a penetrating part through which pipes and cables penetrate in a partition part of a building, the pipe and cable are arranged in a through hole penetrating the partition part. A non-combustible tube-shaped through-hole forming body in which cables are inserted and filled with a refractory material that expands due to heat between the tubes and cables. It is formed by assembling a divided body divided into a plurality along the insertion direction, or a connected divided body in which the divided bodies are connected along the insertion direction, and edges of adjacent divided bodies are formed. A superposition part is formed by superposition, and the superposition part is formed by polymerizing the edges along the insertion direction of the pipes and cables and the direction in which the divided body moves as the refractory material expands. It is a summary.

  The invention according to claim 7 is the penetrating part forming body according to claim 6, wherein the overlapping portion is formed by overlapping a piece formed on one of the adjacent edges and the other edge. The gist is that it is formed by polymerization.

  The invention according to claim 8 is the penetrating part formation body according to claim 7, wherein the overlap piece is bent outwardly on one edge so as to cover the outside of the other edge where the overlap piece overlaps. The gist is that it is formed.

  Invention of Claim 9 is a penetration part formation body as described in any one of Claims 6-8, The collar part latched to the said division part in the arrangement | positioning state in the said through-hole The gist is that is provided.

  According to a tenth aspect of the present invention, in the penetrating portion forming body according to the ninth aspect, the collar portion is formed by assembling the collar pieces provided in each of the divided bodies, and the collar The part is provided with a superposition part in which the end parts overlap each other at a position where the end parts of the scissors are adjacent to each other, and the superposition part moves in the width direction of the saddle part and with the expansion of the refractory material. The gist of the present invention is that the end portions of the flange pieces are formed by being polymerized along the direction of movement.

  According to the fireproof compartment structure of the penetration part of Claims 1 to 5 and the penetration part formation body of Claims 6 to 10, wiring work of tubes and cables to the through hole can be performed with simple work. And the through portion can be easily formed.

  Hereinafter, first and second embodiments of a fire prevention compartment structure of a penetration portion embodying the present invention and a penetration portion forming body forming the fire prevention compartment structure will be described. Note that only differences from the first embodiment will be described in the second embodiment.

(First embodiment)
As shown in FIG. 1, a floor 11 as a partition of a building is formed with a through portion 13 through which a cable 12 as a tube / cable penetrates, and the floor 11 is subjected to a fire prevention treatment. Has a fire protection compartment structure. In the fire prevention compartment structure of the penetration portion 13, a penetration portion forming body 14 is disposed in a through hole 11 a penetrating the floor 11, and a cable 12 is inserted and wired in the penetration portion forming body 14. And in the state which this cable 12 penetrated the floor 11 (through-hole 11a), the refractory material 15 is filled between the cable 12 and the internal peripheral surface of the penetration part formation body 14, and is formed.

  The penetration part forming body 14 is made of a metal material that is a non-combustible material, and has a cylindrical shape with a flange 17 on the outer surface of the central part in the axial direction. The penetration portion forming body 14 is formed by assembling a split body 18 that is divided into two along the insertion direction of the cable 12 with respect to the penetration portion forming body 14. As shown in FIG. 2, each of the divided bodies 18 has a semi-cylindrical shape in which the penetration portion forming body 14 is divided into two along the insertion direction of the cable 12 with respect to the penetration portion forming body 14. A flange piece 20 is provided on the outer surface of the central portion in the axial direction.

  In the divided body 18, the overlap piece 21 is formed on one opening edge portion of the pair of opening edge portions extending in the insertion direction of the cable 12, and the overlap piece 21 is formed on the other opening edge portion 22. Not. The overlapping piece 21 is formed by bending one opening edge of the divided body 18 outward and further bending in the circumferential direction of the divided body 18. The overlapping piece 21 is formed over substantially the entire length direction of the one opening edge, in other words, in the insertion direction of the cable 12 with respect to the penetrating part forming body 14. In addition, a recess 21 c is provided in the center of the overlapping piece 21 in the length direction. Furthermore, fixing holes 21b and 22b are formed in the upper and lower ends of the overlapping piece 21 and the opening edge 22, respectively.

  A pair of upper and lower mounting projections 19a are provided on the outer surface of the central portion in the axial direction of the divided body 18 (only the upper mounting projection 19a is shown in FIG. 2), and the mounting projections 19a are provided at a plurality of locations in the circumferential direction of the divided body 18. It has been. The flange 20 is provided on the divided body 18 by attaching a separate metal plate to the semi-cylindrical body of the divided body 18. That is, the collar piece 20 includes an attachment portion 20a having an arc shape. The mounting portion 20a is fitted between the upper and lower mounting projections 19a along the outer surface of the semi-cylindrical body of the divided body 18, and the mounting screw 23 is fixed from the semi-cylindrical body to the mounting portion 20a. ing.

  A stacking allowance 20c is formed at one end of the both ends of the flange piece 20 on the side where the overlap piece 21 is formed through a step, and the other end 20d of the flange piece 20 is overlapped. The generation 20c is not formed. Further, a fixing hole 20e is formed in each of the overlap margin 20c and the end portion 20d. And the penetration part formation body 14 is formed using a pair of the division bodies 18 of the said structure. The refractory material 15 expands by thermal foaming due to fire heat, and does not carbonize when a fire occurs.

  Now, in order to form the fire prevention compartment structure of the penetration part 13, first, as shown in FIG. 2, the cable 12 is inserted into the through hole 11a, and the cable 12 is arranged in the building. Next, the divided bodies 18 are assembled so that the cable 12 is sandwiched between the pair of divided bodies 18 from the outside. That is, the opening edge 22 of each divided body 18 that faces each of the overlapping pieces 21 is disposed on the inner surface side of the overlapping piece 21 provided in each of the two divided bodies 18, and the inner surface of each overlapping piece 21. Then, the end edge of the opening edge 22 is brought into contact.

  In addition, an end portion 20d of each flange 20 opposite to the overlap allowance 20c is disposed below the overlap allowance 20c provided at one location on the flange 20 of each of the divided bodies 18, and each overlap allowance 20c. The end portion 20d is brought into contact with the inner surface of. As a result, the pair of divided bodies 18 are assembled to form the cylindrical penetration portion forming body 14, and the flange portion 17 is formed in the penetration portion forming body 14.

  After that, as shown in FIG. 3, the lower side of the flange portion 17 of the penetration portion forming body 14 to which the cable 12 is wired is inserted into the through hole 11 a, and the flange portion 17 is placed on the upper surface of the floor 11 through the packing P. When locked, the penetrating part forming body 14 is supported by the floor 11.

  When forming the fire prevention compartment structure in the penetration part 13, the cable 12 is directly inserted into the penetration hole 11a instead of the penetration part formation body 14, and wiring work to the penetration hole 11a is performed. Since the diameter of the through hole 11a is larger than the diameter of the cylindrical portion of the through part forming body 14, that is, the opening of the through part forming body 14, the opening in the through part forming body 14 disposed in the through hole 11a. As compared with the case where the cable 12 is inserted through the cable 12 and the wiring work is performed, the wiring work to the through hole 11a of the cable 12 is easily performed. Furthermore, since the cable 12 is wired in the through-hole forming body 14 simply by assembling the split body 18 so that the cable 12 is sandwiched between the pair of split bodies 18, wiring of the cable 12 into the through-hole forming body 14 is possible. Work becomes even easier.

  Finally, as shown in FIG. 5, when the refractory material 15 is filled between the inner peripheral surface of the penetration part forming body 14 and the cable 12 above the flange part 17, the penetration part 13 is formed in the floor 11. At the same time, a fireproof compartment structure is formed in the through-hole 13.

  As shown in FIGS. 3 and 4, in the fire protection compartment structure of the through portion 13, the adjacent divided bodies 18 are formed at one edge of the adjacent edge portions, that is, at the edge of the one divided body 18. The overlapped piece 21 and the other edge, that is, the opening edge 22 as the edge of the other divided body 18 are superposed to form two overlapping portions J1. In each overlapping portion J1, each overlapping piece 21 and the opening edge portion 22 inside thereof overlap each other in the insertion direction and the circumferential direction of the cable 12 with respect to the penetration portion forming body 14. At this time, the fixing holes 21b and 22b coincide.

  In addition, a flange portion 17 is formed in the penetration portion forming body 14. Between the adjacent flange pieces 20 in the penetrating portion forming body 14, adjacent end portions are superposed with each other. That is, an end 20d opposite to each overlap allowance 20c is inserted below the overlap allowance 20c provided at each of the two flange pieces 20. And each overlap allowance 20c and the edge part 20d superpose | polymerize in the width direction of the collar piece 20, and a pair of superposition | polymerization part J2 is formed in the mutually opposing position which pinched | interposed the cylinder of the penetration part formation body 14. FIG. At this time, the upper and lower fixing holes 20e coincide with each other in each overlapping portion J2.

  As shown in FIG. 3, a gap S is formed between the inner peripheral surface of the through hole 11a and the outer peripheral surface of the cylindrical body of the through-portion forming body 14 in the through hole 11a. The opening on the upper surface is closed by the flange 17. In addition, the width of the gap S, in other words, the interval between the outer peripheral surface of the cylindrical body of the penetrating part forming body 14 and the inner peripheral surface of the through hole 11a is shorter than the length of the overlapping piece 21 in the width direction. Yes.

  In each overlapping portion J1, bolts may be inserted into the fixing holes 21b and 22b, and the bolts may be screwed into nuts to restrict movement of the pair of divided bodies 18 in the axial direction. Furthermore, a bolt may be inserted into the upper and lower fixing holes 20e in each overlapping portion J2, and the bolt may be screwed into a nut to restrict the movement of the pair of divided bodies 18 away from each other.

  By the way, when a fire breaks out under the floor 11 in which the fire prevention compartment structure of the penetration part 13 is formed, both the inner and outer sides of the penetration part forming body 14 are heated from below by fire heat. Moreover, the side surface of the penetration part formation body 14 is heated by the smoke which penetrate | invaded in the clearance gap S, or fire heat. At this time, since the opening of the upper surface of the floor 11 of the gap S is closed by the flange portion 17, fire heat and smoke are prevented from being ejected from the gap S onto the floor 11.

  Furthermore, the fireproof material 15 is heated and expanded by thermal foaming in the upper part of the penetration part forming body 14 by the fire spread of the cable 12 and the fire heat. Then, the opening on the upper end side of the penetration part forming body 14 is completely closed by the fire-resistant and expanded refractory material 15, and the fire spread of the cable 12 is prevented and fire heat and smoke are generated in the penetration part forming body 14. To the floor 11 is prevented.

  As shown in FIG. 6 and FIG. 7, along with thermal foam expansion of the refractory material, the penetrating part forming body 14 expands in the diameter direction, in other words, the pair of divided bodies 18 move away from each other. Overlapping portions J1 are formed at 18 opposing portions. And in each superposition | polymerization part J1, the overlapping piece 21 is extended along both directions of the insertion direction of the cable 12 with respect to the penetration part formation body 14, and the direction which moves as a pair of division body 18 leaves | separates, A corresponding opening edge part 22 is polymerized. Furthermore, the length of the overlapping piece 21 in the width direction (the direction in which it is separated) is longer than the width of the gap S.

  For this reason, even if a pair of division body 18 moves to the maximum in the direction spaced apart in the through-hole 11a, since superposition | polymerization with each overlap piece 21 and the opening edge part 22 is maintained, between division bodies 18 mutually No gap is formed. Therefore, even if the penetration part forming body 14 is formed by assembling a pair of divided bodies 18, the refractory material 15 leaks from between the divided bodies 18 when a fire breaks out, or the refractory material 15 leaks out. There is no risk of fire heat or smoke leaking from the gap between the fire-resistant material 15 and the divided body 18.

  Also in the flange portion 17, the overlapping portion 20 c of each flange piece 20 overlaps with the end portion 20 d of the opposite flange piece 20 to form the overlapping portion J <b> 2. For this reason, even if the divided bodies 18 are separated from each other and moved in a direction in which the pieces 20 are separated from each other, no gap is formed between the pieces 20. Therefore, even if the penetration portion forming body 14 is formed by assembling the pair of divided bodies 18 and the flange portion 17 is formed by assembling the flange piece 20, the smoke that has entered the gap S when a fire breaks out is generated. Leakage from between each other is prevented.

According to the above embodiment, the following effects can be obtained.
(1) Since the penetration part forming body 14 can be formed by assembling a pair of divided bodies 18, the cable 12 is wired in the penetration part forming body 14 by assembling the divided bodies 18 so as to sandwich the cable 12. Can do. For this reason, the split body 18 is assembled from the outside of the cable 12 already inserted and wired into the through hole 11a to form the through part forming body 14, and the through part forming body 14 is simply inserted into the through hole 11a. The wiring work of the cable 12 to the hole 11a and the forming work of the through portion 13 can be performed. Therefore, compared with the case where the cable 12 is inserted into the through-hole forming body 14 disposed in the through-hole 11a and the cable 12 is wired to the through-hole 11a to form the through-hole 13, the through-hole is formed. The wiring work of the cable 12 to 11a can be performed easily, and the fire prevention compartment structure of the penetration part 13 can be formed easily.

  (2) Although the penetration part forming body 14 is formed by assembling a pair of divided bodies 18, even if the refractory material 15 is thermally foamed and expanded, and the pair of divided bodies 18 move away from each other, a pair of polymerizations In the part J1, the superposition of each overlapping piece 21 and the opening edge 22 is maintained. Therefore, a gap between the pair of divided bodies 18 or a gap between the refractory material 15 and the divided body 18 is not formed, and fire heat and smoke leak out from the inside of the through-hole forming body 14, There is no risk of jetting above the penetration part 13, that is, on the floor 11.

  (3) The length of the overlapping piece 21 in the width direction (the length in the direction in which the divided bodies 18 are separated from each other) is set longer than the width of the gap S. For this reason, even if each divided body 18 moves in a direction away from each other in the through-hole 11a due to thermal foaming expansion of the refractory material 15, the superposition of the overlap piece 21 and the opening edge 22 can be maintained, and the division is performed. It is possible to prevent a gap from being formed between the bodies 18.

  (4) In the through portion 13, even if the gap S is formed between the inner peripheral surface of the through hole 11 a and the outer peripheral surface of the through portion forming body 14, the upper opening on the floor 11 of the gap S is formed by the flange portion 17. Can be occluded. Therefore, the smoke 17 can prevent the smoke that has entered the gap S from being ejected onto the floor 11. Moreover, since the collar part 17 exhibits the function for supporting the penetration part formation body 14 on the floor 11, the collar part 17 exhibits the two functions of the opening obstruction | occlusion of the clearance gap S and the support of the penetration part formation body 14. be able to. Therefore, unlike the case where the members that perform the respective functions are provided separately in the penetration portion forming body 14, the configuration of the penetration portion forming body 14 can be simplified.

  (5) Although the flange portion 17 is formed by assembling a pair of flange pieces 20, even if the refractory material 15 is expanded by thermal foaming and the pair of divided bodies 18 move away from each other, Polymerization between each overlapping allowance 20c and the opposite end 20d is maintained. Therefore, a gap is not formed between the pair of flanges 20, and fire heat and smoke can be prevented from being ejected above the penetration part 13, that is, on the floor 11. Moreover, in each superposition | polymerization part J2, since the overlap margin 20c of each division body 18 is arrange | positioned above the edge part 20d of the collar part 17, it is controlled that a pair of division body 18 moves up and down.

  (6) The penetration portion forming body 14 is formed by combining a pair of divided bodies 18 having the same shape so as to face each other. Therefore, unlike the case where the separate-shaped divided bodies are separately formed and combined to form the penetrating portion forming body 14, troublesome operations such as troublesome formation of each divided body and adjustment of details can be omitted.

(Second Embodiment)
8 to 11, a second embodiment is shown.
In the first embodiment, the flange 20 is formed in each divided body 18, and the flange 17 is provided in the penetrating portion forming body 14. However, as shown in FIGS. In the part forming body 30, the flange part 17 is omitted, and in each divided body 31, the flange piece 20 is omitted. Each divided body 31 is formed with an overlapping piece 33 and an opening edge 34, and each overlapping piece 33 has a fixing hole 33 b and each opening edge 34 has a fixing hole 34 b.

  Now, as shown in FIGS. 9 and 10, a through-hole forming body 30 is disposed in the through-hole 37 of the concrete wall W as a partitioning portion, and the protective tube 32 as a pipe / cable is attached to the concrete wall W. To penetrate. At this time, the overlapping piece 33 and the opening edge 34 are superposed to form a superposed part J1. Further, the concrete is backfilled in the gap between the outer peripheral surface of the through-hole forming body 30 and the inner peripheral surface of the through-hole 37 to close the gap, and the through-hole forming body 30 is supported in the through-hole 37.

  Next, the refractory material 15 is filled between the inner peripheral surface of the penetration portion forming body 30 and the protective tube 32 at both ends of the penetration portion forming body 30. As shown in FIG. 9, the refractory material 15 is filled from the opening end of the penetration portion forming body 30 to a position that is half the protruding length of the penetration portion forming body 30 from the concrete wall W surface. As a result, the concrete wall W is formed with a fire prevention compartment structure of the penetrating portion 13.

  In the unlikely event that a fire occurs on one side (right side in FIG. 9) of the concrete wall W on which the fire prevention compartment structure of the penetration part 13 is formed, one end side (right end side) of the penetration part forming body 30 is heated by fire heat. Is done. As shown in FIG. 11, when the refractory material 15 is heated and expanded by thermal foaming, the pair of divided bodies 31 on one end side of the penetration portion forming body 30 corresponding to the refractory material 15 moves in a direction away from each other. Since the filling amount of the refractory material 15 is set to be about half of the protruding amount from the W surface of the penetration part forming body 30, only one end side (right end side) of the pair of divided bodies 31 is expanded in diameter. The

  Therefore, for example, when the filling amount of the refractory material 15 is set to be substantially the same as or more than the protruding amount from the W surface of the penetrating part forming body 30, it extends over the entire axial direction of the penetrating part forming body 30. The pair of divided bodies 31 are not separated. This leads to suppression of a decrease in the overlapping area between the overlapping piece 33 and the opening edge 34 due to the movement of the pair of divided bodies 31. In other words, it is possible to secure as much overlapping area as possible between the overlapping piece 33 and the opening edge 34, and it is possible to make it difficult to form a gap between the divided bodies 31.

  A gap between the pair of divided bodies 31 or a gap between the refractory material 15 and the divided body 31 is not formed, and fire heat or smoke leaks out from the inside of the penetration part forming body 30 or is protected. The penetration part 13 in which the pipe 32 spreads and the fire does not easily reach the other surface of the concrete wall W can be formed. Moreover, since the said function can be exhibited with the comparatively small amount of refractory materials 15, the cost concerning the penetration part 13 can be held down.

In addition, you may change the said embodiment as follows.
In each embodiment, the pair of divided bodies 18 and 31 having the same shape are assembled to form the penetrating part forming bodies 14 and 30, but the divided parts 18 and 31 having different shapes are assembled to form the penetrating part. The formed bodies 14 and 30 may be formed.

  In the first embodiment, the overlap allowance 20c is formed at one end of the flange 20 of each divided body 18. However, the overlap allowance 20c may be formed at both ends of one flange 20, and the other facing It is good also as the thing which the overlap allowance 20c is not formed in the both ends of the collar piece 20 of the division body 18. FIG.

  In each embodiment, the overlapping pieces 21 and 33 are formed on one edge portion of each divided body 18 and 31, but are overlapped from the outer peripheral surface of the divided bodies 18 and 31 separated from one edge portion of each divided body 18 and 31. The pieces 21 and 33 may be extended. That is, in a state in which the edges of the pair of divided bodies 18 and 31 are in contact with each other, the overlapping pieces 21 and 33 may overlap with the opposing edges to form the overlapping portion J1.

  In each embodiment, the overlapping pieces 21 and 33 are formed so as to cover the outside of the adjacent opening edges 22 and 34, but the overlapping pieces 21 and 33 enter the inside of the adjacent opening edges 22 and 34. Or may be formed so as to overlap both inside and outside of the opening edge portions 22 and 34.

In each embodiment, the divided bodies 18 and 31 are formed in a semi-cylindrical shape. However, it is also possible to form a divided body that forms a half-square cylinder by dividing a through-hole forming body that forms a square cylinder.
In each embodiment, the penetration part forming bodies 14 and 30 are formed by assembling the two divided bodies 18 and 31, but three or more divided bodies are assembled to form the penetration part forming bodies 14 and 30. May be. At this time, between the adjacent divided bodies, the overlapping piece is locked to one of the adjacent edge portions, and the overlapping piece is superposed on the other edge portion to form the overlapping portion.

  In each embodiment, the penetration part forming bodies 14 and 30 are formed by assembling a pair of divided bodies 18 and 31. For example, as shown in FIG. 12, the pair of divided bodies 18 and 31 may be formed by assembling a connecting divided body 38 in which adjacent edge portions are connected by a connecting portion 36. In addition, the two division bodies 18 and 31 are integrally formed, and the connection part 36 can open and close the division bodies 18 and 31 by the elasticity of the metal material itself which forms the penetration part formation bodies 14 and 30.

  When the divided bodies 18 and 31 of the connection divided body 38 are assembled to each other, the overlapping pieces 21 and 33 are formed on one adjacent edge of the pair of divided bodies 18 and 31, and the other edge is opened. Edges 22 and 34 are formed. Then, the overlapping portion J1 may be formed in the penetration portion forming bodies 14 and 30 by the overlapping pieces 21 and 33 and the opening edge portions 22 and 34.

In each embodiment, the fire prevention compartment structure of the penetration part 13 is formed on the floor 11 or the concrete wall W as the partition part, but the fire prevention compartment structure of the penetration part may be formed on the ceiling as the partition part.
In the first embodiment, the refractory material 15 is provided on the upper side of the flange portion 17 of the penetration portion forming body 14, but the refractory material 15 may be provided on the lower end side of the penetration portion forming body 14.

  In each embodiment, the cable 12 and the protective tube 32 are embodied as tubes / cables. However, a fire prevention compartment structure may be formed in a penetration portion through which a tube such as a wire tube or a sheath tube is penetrated. .

The partially broken perspective view which shows the fire prevention division structure of the penetration part of 1st Embodiment. The perspective view which shows the use condition of a pair of division body. The partial cross section side view which shows the fire prevention division structure of a penetration part. The top view which shows the fire prevention division structure of a penetration part. The longitudinal cross-sectional view which shows the fire prevention division structure of a penetration part. The partial cross section side view which shows the fire prevention division structure of the penetration part which a pair of division body moved. The top view which shows the fire prevention division structure of the penetration part which a pair of division body moved. The perspective view which shows a pair of division body of 2nd Embodiment. The longitudinal cross-sectional view which shows the fire prevention division structure of the penetration part of 2nd Embodiment. The front view which shows the fire prevention division structure of the penetration part of 2nd Embodiment. The partial cross section side view which shows the fire prevention division structure of the penetration part which a pair of division body moved. The perspective view which shows the connection division body of the penetration part formation body of another example.

Explanation of symbols

  J1, J2 ... overlapped part, W ... concrete wall as partitioning part, 11 ... floor as partitioning part, 11a, 37 ... through hole, 12 ... cable, 13 ... penetrating part, 14, 30 ... penetrating part forming body, 15 Refractory material, 17: collar, 18, 31 ... divided body, 20 ... collar, 20c ... stacking margin as end, 20d ... end, 21, 33 ... overlapping strip as one edge, 22, 34 ... Opening edge as the other edge, 32 ... Protective tube, 38 ... Connection division body.

Claims (10)

An inner peripheral surface of a penetrating part forming body that is provided in a penetrating part through which pipes and cables penetrate a partition part of a building, and is formed in a through-hole penetrating the partitioning part and made of a non-combustible material; In the fireproof compartment structure of the penetrating part filled with a refractory material that expands by heat between the pipes and cables inserted into the penetrating part forming body,
The penetration part forming body is divided into a plurality of divided parts along the insertion direction of the tubes and cables with respect to the penetration part forming body, or the divided parts are connected to each other along the insertion direction of the pipes and cables. In addition, the penetrating portion forming body is formed by superposing the edges of the adjacent divided bodies to form a superposed portion, and the superposed portion is inserted through the pipes and cables. A fireproof compartment structure of a penetrating portion, wherein the edge portions are formed by being polymerized along a direction and a direction in which the divided body moves with expansion of the refractory material.   2. The penetration portion fire prevention according to claim 1, wherein the overlapping portion is formed by overlapping the overlapping piece formed on one of the adjacent edges and the other edge. Compartment structure.   The fireproof compartment structure of the penetrating part according to claim 2, wherein the overlapping part is formed so that the overlapping piece covers an outer side of the other edge part.   The said penetration part formation body is provided with the collar part latched to the said division part in the arrangement | positioning state in the said through-hole of this penetration part formation body, The Claim 1-Claim 3 characterized by the above-mentioned. The fireproof compartment structure of the penetrating part according to any one of the above.   The collar portion is formed by assembling the collar pieces provided in each of the divided bodies, and the collar portion is provided with a superposition portion by polymerizing the ends of the adjacent collar pieces, The overlapping portion is formed by overlapping ends of the flange pieces along the width direction of the flange portion and the direction in which the divided body moves as the refractory material expands. Item 5. A fireproof compartment structure for a penetrating part according to Item 4. In order to form a fireproof compartment structure of a penetration portion through which pipes and cables penetrate in a partition portion of a building, the pipes and cables are inserted through the through-holes penetrating the compartment portion, A tube-shaped through-hole forming body made of a non-combustible material filled with a refractory material that expands due to heat between the tubes and cables,
A divided body divided into a plurality along the insertion direction of the tubes / cables, or a connected divided body in which the divided bodies are connected along the insertion direction, and adjacent divisions. The edges of the body are superposed to provide a superposed part, and the superposed part is formed along the direction in which the divided body moves along with the insertion direction of the pipes and cables and the expansion of the refractory material. A penetration part forming body characterized by being formed by polymerizing each other.   The penetration part forming body according to claim 6, wherein the superposition part is formed by superposition of an overlap piece formed on one of the adjacent edges and the other edge. .   The penetration part forming body according to claim 7, wherein the overlap piece is formed by bending one edge part outward so as to cover the other edge part where the overlap piece overlaps.   The penetrating part forming body according to any one of claims 6 to 8, wherein a hook part that is locked to the partition part is provided in a state of being disposed in the through hole.   The collar part is formed by assembling the collar pieces provided in each of the divided bodies, and the collar part is a polymerization in which the edge parts are polymerized at positions where the edge parts of the collar pieces are adjacent to each other. A portion is provided, and the overlapping portion is formed by overlapping ends of the flange pieces along the width direction of the flange portion and the direction in which the divided body moves along with the expansion of the refractory material. The penetration part formation object according to claim 9 characterized by things.

Images