KR20190019042A - Sleeves for forming compartment through holes in buildings - Google Patents

Abstract

A sleeve 1 for forming a compartment through hole in a building comprises a first sleeve 10 having a main body 11 and a second sleeve 10 having a thermally expandable main body 21 which can be fitted to the first sleeve 10 Two sleeves 20 are provided. At least a part of the main body 21 of the second sleeve 20 is exposed while the first sleeve 10 and the second sleeve 20 are sandwiched.

Description

Sleeves for forming compartment through holes in buildings

The present invention relates to a sleeve for forming a compartment through hole in a building.

In the concrete pouring floor of each layer of the building, it is necessary to form a through-hole structure in order to pass the piping and / or the wiring from above to below the floor or vice versa. Specifically, a compartment through-hole for passing piping and / or wiring is formed on a floor or a wall such as concrete. Conventionally, for example, as described in Patent Document 1, before a concrete is poured, The pipe is vertically installed and fixed, and the concrete is poured around the sleeve to make a concrete floor. The openings formed in the inside of the sleeve are used as a through hole, and the pipe and / Lt; / RTI > And, since the sleeves are generally made of resin, paper or metal, the fire propagates from the compartment to the adjacent compartment through the piping and / or wiring. In order to impart fire resistance to the passage penetration structure, it is necessary to form a refractory structure by separately providing a refractory material in the through hole after piping and / or wiring.

Japanese Unexamined Patent Application Publication No. 6-257281

Even if the refractory material is not separately installed after the wiring and / or piping, it is advantageous if the structure of the compartment penetration of the building has fire resistance.

It is also possible to consider forming a part of the sleeve with a thermally expandable refractory resin material in order to impart refractoriness to the sleeve. If the number of thermally expandable refractory resin material portions is increased, adhesion of the combustion residue to concrete improves, If the amount of the thermally expandable refractory resin material portion is reduced, the adhesion of the combustion residue to the concrete is lowered, so that more combustion residues are dropped, but they are more resistant to external impacts.

An object of the present invention is to provide a sleeve having excellent fire resistance for forming a partition through hole in a building.

It is another object of the present invention to provide a sleeve for forming a compartment through hole in a building, which has strength against external impact and adhesion of combustion residues to the building.

In order to achieve the above object, the inventors of the present invention have found that by forming the sleeve by combining the first sleeve and the second sleeve having the thermally expandable body portion, it is possible to impart fire resistance to the through- And thus the present invention has been accomplished.

According to the present invention, the following aspects are provided.

[Item 1] A sleeve for forming a through hole in a building, comprising: a main body; a first sleeve having a diameter portion or a reduced diameter portion continuous with the main body portion; And a hollow second sleeve having a main body portion which is fittable with the first sleeve, wherein at least a part of the main body portion of the second sleeve is exposed while the first sleeve and the second sleeve are sandwiched therebetween.

[Item 2] The ratio of the expansion ratio of the body portion of the first sleeve to the expansion ratio of the body portion of the second sleeve is 0? (The expansion ratio of the body portion of the first sleeve / the expansion ratio of the body portion of the second sleeve) Lt; / RTI >

[Item 3] The sleeve according to item 1 or 2, wherein the body portion of the first sleeve is unexpanded.

[Item 4] In any of items 1 to 3, wherein 0 <(exposed area of the outer circumferential surface of the second sleeve / exposed surface area of the outer circumferential surface of the first sleeve) × 100 of 100, with the first sleeve and the second sleeve fitted therebetween Sleeve described in one.

[Item 5] A sleeve according to any one of items 1 to 4, wherein 10 ≦ (volume of the main body of the second sleeve) / (volume of the first sleeve and volume of the second sleeve) × 100 ≦ 80.

[Item 6] The sleeve according to any one of items 1 to 5, wherein the outer diameter of the body portion of the second sleeve is equal to or larger than the inner diameter of the body portion of the first sleeve.

[Item 7] (i) the inner diameter of the body portion of the first sleeve is smaller than the inner diameter of the body portion of the second sleeve, (ii) the inner diameter of the body portion of the first sleeve is equal to the inner diameter of the body portion of the second sleeve, or The inner diameter of the main body portion of the first sleeve is larger than the inner diameter of the main body portion of the second sleeve and the difference between the inner diameter of the main body portion of the second sleeve and the inner diameter of the main body portion of the first sleeve is 8% The sleeve according to any one of items (1) to (6), which satisfies any of (i) to (iii)

[Item 8] An end portion of a first sleeve or a second sleeve forming a fitting portion between a first sleeve and a second sleeve in a state in which the first sleeve and the second sleeve are fitted to each other, and an end portion of the first sleeve or the second sleeve The gap L between the faces of the second sleeve or the first sleeve facing the end portions along the axial direction of the sleeve

0 &lt; L &lt; (first sleeve length / 2)

Wherein the sleeve is made of a synthetic resin.

[Item 9] The sleeve according to any one of items 1 to 8, wherein the facing surfaces of the first sleeve and the second sleeve are in contact with each other at the fitting portion of the first sleeve and the second sleeve.

[Item 10] The sleeve according to any one of claims 1 to 9, wherein an annular member having one or a plurality of attachment portions is formed at one end of an outer peripheral surface of a body portion of the first sleeve and / or the second sleeve.

The sleeve according to any one of items 1 to 9, wherein an annular member is formed at one end of a main body portion of the first sleeve and / or the second sleeve.

[Item 11] The sleeve according to any one of items 1 to 9, wherein an annular protrusion protruding from the main body is formed at a position spaced apart from the end of the main body of the first sleeve and / or the second sleeve.

[Item 12] The sleeve according to any one of items 1 to 11, further comprising a third sleeve fitted to the first sleeve or the second sleeve.

[Item 13] As a partition penetration structure,

Floor or wall,

A structure as claimed in any one of claims 1 to 12, wherein the sleeve is provided on the floor or the wall.

[Item 14] A through-hole structure according to Item 13, further comprising a pipe or wiring disposed in the sleeve.

[Item 15] As a refractory filling structure,

A sleeve according to any one of items 1 to 12,

A pipe or wire disposed in the sleeve,

A refractory filling structure having a stationary frame mounted on a first sleeve.

According to the present invention, it is possible to provide the sleeves and to impart fire resistance to the through-hole structure, and to facilitate the construction of the through-hole structure. Further, the sleeve of the present invention can be provided with strength against external impact and adhesion to the floor or wall of the building, thereby improving the fire resistance performance.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of a sleeve of an embodiment of the present invention; Fig.
2 is a top view (A), a sectional view (B), and a bottom view of the first sleeve.
3 (A) is a top view of the second sleeve, (B) is a sectional view, and (C) is a bottom view.
4 is a schematic side view of a state in which the second sleeve is fitted in the first sleeve;
5A to 5D are schematic cross-sectional views of a method of constructing a through-hole structure of the present invention using the sleeve of Fig. 1; Fig.
6 is a schematic cross-sectional view of a sleeve of another example;
7 is a schematic cross-sectional view of a sleeve of another example;
8 (A) and 8 (B) are schematic sectional views showing a third sleeve.

Hereinafter, embodiments of the present invention embodied in a sleeve will be described with reference to the drawings.

Fig. 1 shows a sleeve 1 for forming a compartment through hole in the floor or wall of the building of the first embodiment of the present invention, also called void. Specifically, the sleeve 1 is disposed before the concrete is poured. The sleeve 1 is provided with a first sleeve 10 and a second sleeve 20. Also, in the specification, the term &quot; building &quot; includes construction materials such as single-family houses, multi-family houses, high-rise houses, high-rise buildings, commercial facilities, and public facilities; Vessels such as passenger ships, transport vessels, ferryboats; vehicle ; , And the like, but are not limited thereto.

1 and 2B, the first sleeve 10 includes a hollow main body portion 11 having a substantially hollow cylindrical shape, a hollow main body portion 11 having a substantially hollow shape extending continuously through the main body portion 11 and the step portion 15, And has a cylindrical enlarged portion 16. In the present embodiment, the main body portion 11, the stepped portion 15, and the enlarged diameter portion 16 are continuously formed of the same non-heat-expandable material, and the first sleeve 10 is formed from the upper end 12 to the lower end 18). The non-heat-expandable material may be a metal such as steel, copper, or stainless steel, or may be a non-heat-expandable refractory resin material such as an acrylic resin, an epoxy resin, a polypropylene resin, or a vinyl chloride.

As shown in Figs. 1 and 3 (B), the second sleeve 20 includes a main body 21 of a substantially heat-expandable hollow, cylindrical body that can be fitted in the enlarged diameter portion 16 of the first sleeve 10, And an annular member 26 and an annular protruding portion 28 mounted on the periphery of the main body portion 21. The annular member 26 includes one or a plurality of attachment portions 27 attached to the annular member 26 (The lower end 23 in the figure) of the outer circumferential surface of the main body portion 21 and is projected from one end (the lower end 23 in the figure) of the outer circumferential surface of the main body portion 21 in order to attach the second sleeve 20 to the second sleeve 20. The annular protruding portion 28 is formed at a position spaced apart from one end (lower end 23) of the outer peripheral surface of the main body portion 21 and protrudes from the outer peripheral surface of the main body portion 21, As a stop member for stopping the engagement with the base 10.

The main body 21 is made of a heat-resistant refractory resin material. The refractory resin material is a resin composition containing a thermally expansible layered inorganic material in the resin component. The member made of the refractory resin material of the second sleeve 20 including the main body portion 21 can be obtained by molding each component of the resin composition in a single screw extruder, a twin screw extruder, a Banbury mixer, a kneader mixer, a kneading roll, , Kneading them using a known apparatus, and molding them by a known molding method.

As the resin component, a known resin component can be widely used, and examples thereof include a thermoplastic resin, a thermosetting resin, a rubber material, and a combination thereof.

Examples of the thermoplastic resin include polyolefin resins such as polypropylene resin, polyethylene resin, poly (1-) butene resin and polypentene resin, polystyrene resin, acrylonitrile-butadiene-styrene (ABS) resin, polycarbonate resin , Polyphenylene ether resin, (meth) acrylic resin, polyamide resin, polyvinyl chloride resin, novolac resin, polyurethane resin, polyisobutylene and the like.

Examples of the thermosetting resin include synthetic resins such as polyurethane, polyisocyanate, polyisocyanurate, phenol resin, epoxy resin, urea resin, melamine resin, unsaturated polyester resin and polyimide.

Examples of the rubber material include natural rubber, isoprene rubber, butadiene rubber, 1,2-polybutadiene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, chlorinated butyl rubber, ethylene- Rubber materials such as acrylic rubber, epichlorohydrin rubber, polyvalent rubber, unvulcanized rubber, silicone rubber, fluorine rubber and urethane rubber.

These synthetic resins and / or rubber materials may be used alone or in combination of two or more.

Among these synthetic resins and / or rubber materials, it is preferable that they have properties capable of flexibly adjusting properties such as cold resistance, heat resistance and oil resistance. In order to obtain a resin composition which is easier to handle with more flexibility, a plasticizer to which a plasticizer is added is preferably used. Instead, an epoxy resin is preferable from the viewpoint of increasing the flame retardancy of the resin itself and improving the fire resistance.

The thermally expansible layered inorganic material expands upon heating. The heat-expandable layered inorganic material is not particularly limited, and examples thereof include vermiculite, kaolin, mica, heat expandable graphite and the like. The thermally expansible graphite is a conventionally known material in which powders such as natural graphite graphite, pyrolytic graphite and kish graphite are mixed with inorganic acids such as sulfuric acid, nitric acid and selenic acid and organic acids such as hydrochloric acid, perchloric acid, perchloric acid, And is treated with a strong oxidizing agent such as dichromate, hydrogen peroxide or the like to produce graphite intercalation compound, which is one kind of crystal compound in a state of maintaining the layer structure of carbon. The thermally expansive graphite obtained by the acid treatment as described above may be further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound or the like. Examples of commercially available products of thermally expandable graphite include GREP-EG manufactured by Toso Corporation, ADT-351, ADT-501 manufactured by ADT, and GRAFGUARD manufactured by GRAFTECH.

The resin composition preferably contains the heat-expandable layered inorganic material in an amount of 10 to 350 parts by weight based on 100 parts by weight of the resin component such as the thermoplastic resin and the epoxy resin.

The resin composition constituting the heat-expandable refractory material may further contain an inorganic filler. The inorganic filler enhances the strength of the expansion heat insulating layer by acting as an aggregate while suppressing heat transfer by increasing the heat capacity when the expansion heat insulating layer is formed. The inorganic filler is not particularly limited and includes, for example, metal oxides such as alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide and ferrite; Functional inorganic substances such as calcium hydroxide, magnesium hydroxide, aluminum hydroxide and hydrotalcite; And basic metal carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, and barium carbonate. Examples of the inorganic filler include calcium salts such as calcium sulfate, gypsum fiber and calcium silicate; Silica, silica, silica, diatomaceous earth, tarsonite, barium sulfate, talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite, immigrite, sericite, glass fiber, glass beads, silica balloon, aluminum nitride, The present invention relates to a method for producing a carbon black powder, which comprises the steps of: preparing carbon black, graphite, carbon fiber, carbon balloon, charcoal powder, various metal powders, potassium titanate, magnesium sulfate, lead zirconate titanate, zinc stearate, calcium stearate, aluminum borate, silicon carbide, , Various magnetic powders, slag fibers, fly ash, dehydrated sludge and the like. These inorganic fillers may be used alone or in combination of two or more.

Specific examples of the aluminum hydroxide in the inorganic filler include "Heidiite H-31" (manufactured by Showa Denko K.K.) having a particle diameter of 18 μm, "B325" (manufactured by ALCOA Corporation) having a particle diameter of 25 μm, BF300 &quot; (manufactured by Bihoku Kuka Kogyo Co., Ltd.) having a diameter of 8 占 퐉 and 1.8 占 퐉 of "Phytone SB red (red)" (manufactured by Bihoku Kuka Kogyo Co., Ltd.).

It is preferable that the resin composition contains an inorganic filler in an amount of 30 to 400 parts by weight based on 100 parts by weight of a resin component such as the thermoplastic resin and the epoxy resin.

The total amount of the thermally expansible layered inorganic material and the inorganic filler is preferably in the range of 50 to 600 parts by weight based on 100 parts by weight of the resin component.

The resin composition constituting the heat-expandable refractory material may further contain a phosphorus compound in addition to the above-mentioned components in order to increase the strength of the expanded heat insulating layer and improve the fire resistance. The phosphorus compound is not particularly limited and includes, for example, red phosphorus; Various phosphoric acid esters such as triphenyl phosphate, tricresyl phosphate, triazylenyl phosphate, cresyldiphenyl phosphate, and xylylenediphenyl phosphate; Metal phosphates such as sodium phosphate, potassium phosphate and magnesium phosphate; Ammonium polyphosphate; And compounds represented by the following formula (1). Of these, ammonium polyphosphate and a compound represented by the following formula (1) are preferred from the viewpoint of fire resistance, and ammonium polyphosphate is more preferable in terms of performance, safety and cost.

[Chemical Formula 1]

In the formula (1), R ¹ and R ³ represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms. R ² represents a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms Lt; / RTI &gt;

Commercially available lubricants can be used. From the viewpoints of moisture resistance and safety such as no spontaneous ignition at the time of kneading, the surface of the charged particles is coated with a resin, and the like are preferably used. The polyphosphate is not particularly limited, and for example, ammonium polyphosphate and melamine-modified polyphosphoric acid ammonium are exemplified, but ammonium polyphosphate is preferably used in terms of handleability and the like. Examples of commercially available products include "AP422" and "AP462" manufactured by Clariant, "FR CROS 484" and "FR CROS 487" manufactured by Budenheim Iberica.

The compound represented by the formula (1) is not particularly limited and includes, for example, methylphosphonic acid, dimethyl methylphosphonate, diethyl methylphosphonate, ethylphosphonic acid, n-propylphosphonic acid, -Methylpropylphosphonic acid, t-butylphosphonic acid, 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid , Diethylphosphinic acid, dioctylphosphinic acid, phenylphosphinic acid, diethylphenylphosphinic acid, diphenylphosphinic acid, and bis (4-methoxyphenyl) phosphinic acid. Among them, t-butylphosphonic acid is preferable in view of high cost but high flame retardancy. The phosphorus compounds described above may be used alone or in combination of two or more.

Such a resin composition is expanded by heating to form a fire-resistant and heat-insulating layer. According to this composition, the heat-expandable refractory material is expanded by heating such as fire to obtain a necessary volume expansion rate, and after the expansion, it can have a predetermined heat insulation performance and form a combustion residue, Can be achieved.

The resin composition may contain additives such as a metal inhibitor, an antistatic agent, a stabilizer, a crosslinking agent, a lubricant, a softening agent, an antistatic agent, an antistatic agent, An additive such as a pigment, a tackifier resin, and a molding auxiliary, and a tackifier such as polybutene or a petroleum resin.

A thermally expandable refractory resin material is available as a commercially available product. For example, a fire barrier made of Sumitomo 3M (thermally expandable refractory material made of a resin composition containing chloroprene rubber and vermiculite, thermal expansion coefficient: 3 times, thermal conductivity: 0.20 ㎉ / m · H · ° C), Mejihitkat (a heat-expandable refractory material made of a resin composition containing polyurethane resin and thermally expansible graphite, expansion coefficient: 4 times, thermal conductivity: 0.21 ㎉ / Heat-expandable refractory materials such as Pb blocks manufactured by Kisui Kagaku Kogyo Co., Ltd., and the like.

The heat-expandable refractory material is not particularly limited as long as it is insulated by the expansion layer when exposed to a high temperature such as a fire or the like, and the expansion layer has strength. It is preferable that the volume expansion rate after heating for 30 minutes under a heating condition of 50 kW / m 2 is 3 to 50 times. If the volume expansion rate is three times or more, the expansion volume can sufficiently fill the burned portion of the resin component. If the volume expansion rate is 50 times or less, the strength of the expansion layer is maintained and the effect of preventing penetration of the flame is prevented maintain.

The annular member 26 and the annular protruding portion 28 may be formed of the same heat-expandable refractory resin material as that of the main body portion 21 or may be formed of a non-heat-expandable refractory resin material such as metal such as steel or hard vinyl chloride. The annular member 26 and the annular projection 28 are preferably formed of metal. The annular member 26 has one or a plurality of attachment portions 27 (four in the figure) extending outwardly from the annular member 26 in a direction perpendicular to the axis of the second sleeve 20. The attaching portions 27 are shown as four attaching portions separated by about 90 degrees with respect to the shaft 2 of the sleeve 1 and each attaching portion 27 is provided with a second sleeve 20 And has a hole 27a for fixing it. 5 (B)). Inside the mold 4, a reinforcing bar R for reinforcing the concrete 5 is provided in the mold 4, Lt; / RTI &gt; The concrete 5 and the reinforcing bars R constitute the bottom foundation 3 and the bottom foundation 3 constitutes the bottom.

A fixing member such as a metal wire, a bolt, a screw, or a nail such as a wire can be passed through the hole 27a to fix the second sleeve 20 to the mold 4, the reinforcing bar R, or the concrete 5 For example, by connecting both ends of a metal wire as a fixing member to a reinforcing bar R, passing a bolt, a screw, a nail, etc. through the hole 27a and flowing concrete 5 around the hole 27a, The sleeve 20 is fixed with respect to the reinforcing bar R.

The first sleeve 10 and the second sleeve 20 are connected to the shaft 9 of the sleeve 1 while the second sleeve 20 is fitted to the first sleeve 10, (And the axial direction of the first sleeve 10 and the second sleeve 20). The inner circumferential surface 14 of the main body portion 11 of the first sleeve 10 and the outer circumferential surface 24 of the main body portion 21 of the second sleeve 20 are in contact with each other. A portion of the outer circumferential surface of the main body portion 21 of the second sleeve 20 is exposed while the second sleeve 20 is fitted to the first sleeve 10. A portion of the enlarged diameter portion 16 of the first sleeve 10 and a portion of the second sleeve 20 are overlapped with each other in the overlap portion (the first sleeve 10 and the second sleeve 20) 42).

By forming the main body portion 21 of the second sleeve 20 from a thermally expandable refractory resin material, the adhesion between the second sleeve 20 and the concrete is improved and the adhesion of the combustion residues of the second sleeve 20 to the concrete And the heat insulating layer is hardly collapsed. If the exposed area of the thermally expandable refractory resin material is large, the sleeve 1 tends to be deformed against an external impact. By forming the first sleeve 10 from a non-heat-expandable material such as metal, . In addition, the amount of expansion material can be kept to a minimum, and a through sleeve can be provided at an appropriate price. By forming the sleeve 1 by combining the non-heat-expandable first sleeve 10 and the second sleeve 20 having the heat-expandable body portion in this way, it is possible to impart fire resistance to the through- It has both strength and adhesion to concrete, and can be provided at a reasonable price.

Preferably, the sleeve 1, in a state in which the second sleeve 20 is fitted to the first sleeve 10,

0 &lt; (Exposure area of the outer circumferential surface 24 of the second sleeve 20 / Exposed area of the outer circumferential surface 13 of the first sleeve 10) 100 100 (1)

. &Quot; Exposure &quot; means a state in a visible state when viewed from a side perpendicular to the axis of the first sleeve 10, and means a portion in contact with concrete when poured. 4, the exposed portion of the first sleeve 10 is the portion of the outer circumferential surface 13 that reaches the length of X, and the exposed portion of the second sleeve 20 is the portion of the outer circumferential surface 24 that reaches the length of Y. [

(1), the exposed area of the outer circumferential surface 13 of the first sleeve 10 is larger than the exposed surface area of the outer circumferential surface 24 of the second sleeve 20, The effect of strong resistance is shown.

Preferably, the sleeve (1)

(V ₂ ) of the main body of the second sleeve / (sum of the volume of the first sleeve and the volume of the second sleeve (V ₁ )) 100 (%) 80 (2)

(The volume of the main body portion of the second sleeve) / (the sum of the volume of the first sleeve and the volume of the second sleeve) x 100 (%) is 10 or more, the refractory performance becomes sufficient. (The volume of the main body portion of the second sleeve) / (the sum of the volume of the first sleeve and the volume of the second sleeve) x 100 (%) is 80 or less, the price of the sleeve is suppressed. Further, breakage of the refractory structure such as pushing up of the lid member 30 and the annular member 26 due to excessive expansion during a fire can be prevented.

The inner diameter A of the main body portion 11 of the first sleeve 10 is larger than the inner diameter B of the main body portion 21 of the second sleeve 20 (Ii) the inner diameter B of the main body portion 21 of the second sleeve 20, or (iii) the outer diameter of the main body portion 21 of the second sleeve 20, (I) to (iii) in which the difference between the inner diameter (B) and the inner diameter (A) is 8% or less of the inner diameter (A). With this configuration, the movement (movement in the upward direction in Fig. 4) of the second sleeve 20 into the first sleeve 10 is regulated by the circumferential surface of the step portion 15, that is, the inner circumferential surface 15a . The inner circumferential surface 15a is formed on the inner circumferential surface of the first sleeve 10 so as to protrude inwardly from the main body portion 20 of the second sleeve 2 substantially perpendicularly to the axis 9 of the first sleeve 1 . When the second sleeve 20 is inflated by heating while the second sleeve 20 is fitted to the first sleeve 10, the upper end 22 of the main body 21 of the second sleeve 20 Is inflated and contacts the inner circumferential surface 15a of the step portion 15, so that the upward expansion of the second sleeve 20 is restricted. As a result, in the exposed portion of the second sleeve 20, the direction perpendicular to the axial direction of the second sleeve 20, in particular, the direction perpendicular to the axial direction, and the inflation of the second sleeve 20 inward So that the compartment through hole 7 can be blocked more effectively.

The lower end of the first sleeve 10 is engaged with the annular protrusion 28 of the second sleeve 20 when the second sleeve 20 is fitted in the first sleeve 10 in the present embodiment, The fitting of the second sleeve 20 to the first sleeve 10 is stopped. And the second sleeve 20 forms a fitting portion of the first sleeve 10 and the second sleeve 20 in a state where the second sleeve 20 is fitted to the first sleeve 10 And the inner peripheral surface 15a of the step portion 15 of the first sleeve 10 facing the upper end 22 of the second sleeve 20 along the axial direction of the sleeve 1, The gap L between

0 <L? (First sleeve length / 2) (3)

to be. When L is large, the sleeve 2 expands in the direction on the floor and the upward expansion is hindered. However, if the above expression (3) is satisfied, the expansion of the second sleeve 20 causes the closing of the compartment through hole 7 The effect is excellently exerted.

The outer diameter C of the main body portion 21 of the second sleeve 20 is the same as the inner diameter A of the main body portion 11 of the first sleeve 10, (A). With this configuration, the movement of the second sleeve 20 into the first sleeve 10 (movement in the upward direction in Fig. 4) is more reliably regulated at the stepped portion 15. The upper end 22 of the second sleeve 20 is inflated when the second sleeve 20 is inflated by heating in a state where the second sleeve 20 is fitted to the first sleeve 10, The expansion of the second sleeve 20 in the upward direction is restricted. As a result, in the exposed portion of the second sleeve 20, the direction perpendicular to the axial direction of the second sleeve 20, in particular, the direction perpendicular to the axial direction, and the inflation of the second sleeve 20 inward So that the compartment through hole 7 can be blocked more effectively.

Preferably, the first sleeve 10 and the second sleeve 20 are disposed such that the first sleeve 10 and the second sleeve 20 face each other in a state in which the second sleeve 20 is fitted to the first sleeve 10, The inner circumferential surface 19 of the neck portion 16 and the outer circumferential surface 24 of the main body portion 21 of the second sleeve 20 come into contact with each other. Preferably, the inner circumferential surface 19 of the enlarged diameter portion 16 of the first sleeve 10 and the outer circumferential surface 24 of the main body portion 21 of the second sleeve 20 are in contact with the inner circumferential surface 19 and the outer circumferential surface 24 In the circumferential direction. With this configuration, the adhesion between the first sleeve 10 and the second sleeve 20 at the time of fire is enhanced, so that invasion of fire between the first sleeve 10 and the second sleeve 20 is suppressed and the fire resistance is improved do.

If the annular projection 28 is formed on at least one of the inner circumferential surface 19 of the enlarged diameter portion 16 of the first sleeve 10 or the outer circumferential surface 24 of the main body portion 21 of the second sleeve 20 desirable. As a result, the contact resistance between the inner circumferential surface 19 of the enlarged diameter portion 16 of the first sleeve 10 and the outer circumferential surface 24 of the main body portion 21 of the second sleeve 20 becomes high, .

The inner circumferential surface 14 of the main body 11 of the first sleeve 10 and the inner circumferential surface 25 of the second sleeve 20 form the opening 6 (see Fig. 4) , And a through hole 7 (see Fig. 5 (B)). The size of the opening 6 is larger than the outer diameter of the pipe or the wiring 8 so that the pipe or the wiring 8 can be inserted therethrough. The piping includes various pipes such as a water pipe, a refrigerant pipe, a heat pipe, a gas pipe, and an intake and exhaust pipe. The wiring includes various cables such as a power cable and a communication cable.

As shown in Figs. 1, 2A and 2B, the upper end 12 of the first sleeve 10 is provided with a plurality of pipes or wirings 8, The lid member 30 may be optionally mounted so as to close the hole 7. The lid member 30 is provided with a hole 31 for inserting a pipe or wiring 8 therethrough. The lid member 30 serves as a fixing frame that fills the clearance between the first sleeve 10 and the piping or the wiring 8. The cover member 30 preferably has a clearance of 10 to 100 times the clearance when the cover member 30 is attached to the first sleeve 10 in a state that the pipe or the wiring 8 is passed through the hole 31 of the cover member 30. [ %. The cover member 30 may be formed of a metal, or may be a molded article of a resin composition that is non-refractory or refractory. For example, the cover member 30 may be formed of a resin composition such as vinyl chloride resin or rubber, which may or may not include a plasticizer, and may be a refractory resin composition containing a resin component such as butyl rubber having elasticity . Or may be colored to give aesthetics. In addition, the lid member 30 may be further provided with a finishing layer such as a coating or coloration to give a fine line.

Next, with reference to Figs. 5 (A) to 5 (D), a construction method of the through-hole structure using the sleeve 1 will be described.

As shown in Fig. 5 (A), the sleeve 1 is fixed to the bottom base 3. The fixing of the sleeve 1 to the bottom undergarment 3 is achieved by passing the bolt 29 through the hole 27a of the attaching portion 27 of the lower end 23 of the second sleeve 20, (3). A hole for inserting the pipe or the wiring 8 (see Fig. 5 (C)) is pierced at a position corresponding to the sleeve 1 at the bottom of the mold 4. Next, as shown in Fig. 5 (B), the concrete 5 is poured into the bottom foundation 3. The thickness or height H of the concrete 5 is equal to the distance from the upper end 12 of the first sleeve 10 to the lower end 23 of the second sleeve 20. [ In this manner, the concrete 5 is placed around the outer periphery of the sleeve 1 while leaving the opening 6 inside the sleeve 1, thereby completing the passage through-hole structure 40. The opening 6 of the sleeve 10 serves as a through hole 7.

Next, as shown in Fig. 5 (C), one or a plurality of pipes or wirings 8 are passed through the compartment through holes 7 so as to pass through the concrete 5. Here, the lid member 30 may be mounted on the upper end 12 of the sleeve 1 so as to cover the periphery of a plurality of pipes or wirings 8 and to block the partition through-holes 7. It is preferable that the lid member 30 closes more gaps in the passage through-holes 7. Since the lid member 30 is in contact with the outer circumferential surface of the pipe or the wiring 8 and closes the gap between the sleeve 10 and the pipe or the wiring 8, . 5 (C), the lid member 30 covers the sleeve 1, and the sleeve 1 and the piping or the like are arranged around the pipe or the wiring 8, Since the gap between the wiring lines 8 is closed, the inside of the compartment through hole 7 serves as a blindfold, and aesthetic appearance is visually maintained.

5 (C), when a fire is generated from the direction of the arrow below the layer of the partition penetrating structure 40, as shown in FIG. 5 (D), the second sleeve 20 is fired So as to fill the gap between the concrete 5 and the pipe or wiring 8 to block the course of fire. In this manner, the sleeve 1 not only facilitates the casting of the concrete 5 but also exerts the fire resistance, thereby imparting fire resistance to the partition penetrating structure 40. [ As described above, it can be confirmed that the refractory material is installed simultaneously with the installation of the sleeve 1.

The present invention is not limited to the above-described embodiment, but can be modified as follows.

The first sleeve 10 may be provided with the reduced diameter portion 33 as shown in FIG. 6 instead of having the enlarged diameter portion 16. In this case, the reduced diameter portion 33 of the first sleeve 10 is fitted into the second sleeve 20, and a part of the main body portion of the first sleeve is exposed while the first sleeve is fitted to the second sleeve . In this case, the main body portion 11 is continuous with the reduced diameter portion 33 through the stepped portion 34, and the movement of the second sleeve 20 into the first sleeve 10 Is restricted by the circumferential surface of the step portion 34, that is, the outer circumferential surface 34a. In this case also, preferably, the gap L between the outer peripheral surface 34a of the step portion 34 of the first sleeve and the upper end of the main body portion of the second sleeve is 0 <L? (First sleeve length / 2) . A part of the reduced diameter portion 33 of the first sleeve 10 and a part of the second sleeve 20 are overlapped with each other in the overlap portion (the first sleeve 10 and the second sleeve 20) 42).

7, the first sleeve 10 includes the enlarged diameter portion 16 or the reduced diameter portion 33 instead of the enlarged diameter portion 16 or the reduced diameter portion 33. [ . In this example, the first sleeve 10 is composed of the main body 11 having a constant diameter over the entire length, and the second sleeve 20 is fitted in the first sleeve 10. In this embodiment, a part of the first sleeve 10 and a part of the second sleeve 20 constitute an overlap part 42 in which the first sleeve 10 and the second sleeve 20 are overlapped with each other.

The inner circumferential surface 14 of the first sleeve 10 and a part of the outer circumferential surface 24 of the second sleeve 20 are contacted and fixed to each other. Preferably, in a state where the first sleeve and the second sleeve are engaged with each other, &Lt; (Exposed area of the outer circumferential surface of the second sleeve / exposed area of the outer circumferential surface of the first sleeve) x 100 &lt; Preferably, 10? (Volume of the main body portion of the second sleeve) / (volume of the first sleeve and volume of the second sleeve) x 100? 80 is satisfied.

7, when the inner circumferential surface 14 of the first sleeve 10 and a part of the outer circumferential surface 24 of the second sleeve 20 are not in contact with and fixed to each other, the second sleeve 20 The second sleeve 20 is arranged substantially perpendicular to the axis 9 of the first sleeve 10 on the inner circumferential surface 14 of the first sleeve 10 so as to restrict the movement of the first sleeve 10 into the first sleeve 10. [ An inner circumferential surface 44 protruding inward from the main body 21 of the main body 21 may be formed. In this case, the inner circumferential surface 44 of the first sleeve 10 protruding inward from the first sleeve 10 and the inner circumferential surface 44 of the second sleeve 20 of the second sleeve 20 in the state of fitting the first sleeve 10 and the second sleeve 20 The gap L between the upper ends 22 of the first sleeve 22 is preferably 0 &lt; L &lt; (first sleeve length / 2).

The sleeve 1 has a body portion 37 which is fitted to the first sleeve 10 and / or the second sleeve 20, in addition to the first sleeve 10 and the second sleeve 20 And a third sleeve 36 of a ring shape (in particular, a substantially cylindrical shape) may be provided. 8 (A), the third sleeve 36 may be fitted on the first sleeve 10, and as shown in Fig. 8 (B), under the second sleeve 20 It may be fitted. The configuration of the third sleeve 36 may be the same as or different from that of the first sleeve 10 or the second sleeve 20. In addition, the third sleeve 36 may be adhered to the first sleeve 10 and / or the second sleeve 20, or may be externally exposed.

The annular protruding portion 28 may be formed in the first sleeve 10.

The annular projection 28 may be omitted. The inner diameter A of the main body portion 11 of the first sleeve 10 is smaller than or equal to the inner diameter B of the main body portion 21 of the second sleeve 20, If the difference between the inner diameter B and the inner diameter A is equal to or less than 8% of the inner diameter A even if the inner diameter B is larger than the inner diameter B of the first sleeve 10 and the second sleeve 20 is fitted in the first sleeve 10, The upper end 22 of the first sleeve 20 abuts against the inner peripheral surface 15a of the step 15 of the first sleeve 10 so that the movement of the second sleeve 20 into the first sleeve 10 is regulated.

At least one of the main body portion 11, the stepped portion 15, and the enlarged diameter portion 16 of the first sleeve 10 may be formed of a thermally expandable material. Particularly, the main body portion 11 of the first sleeve 10 may be formed of a material having a lower expansion ratio at the time of heating than the main body portion 21 of the second sleeve 20. In other words, the ratio of the expansion ratio of the main body portion 11 of the first sleeve to the main body portion 21 of the second sleeve 20,

0? (Expansion ratio of the first sleeve / expansion ratio of the second sleeve) <1 (4).

In the above embodiment, the second sleeve 20 is fitted to the inside of the first sleeve 10, but the second sleeve 20 may be fitted to the outside of the first sleeve 10.

In addition to the sleeve 1 and the lid member 30, any known refractory filler, refractory resin composition, refractory sheet, refractory metal plate or the like may be further used for the partition penetration structure of the present invention in order to improve the fire resistance .

5 (B), the concrete 5 is poured to the same level as the height of the sleeve 1 when the concrete 5 is laid. However, in order to visually recognize the upper end of the sleeve 1 , The first sleeve 10 having the height of the sleeve 1 higher than the bottom thickness may be used. The concrete 5 may be a lower height than the height of the sleeve 1. [

The embodiment described above shows an embodiment in which the sleeve 1 and the lid member 30 have a substantially circular section on the assumption that the cross section of the passage through hole 7 is circular. The sleeve 1 and the lid member 30 may be substantially elliptical in cross section when the compartment through hole 7 is substantially elliptical in cross section and the compartment through hole 7 Are substantially rectangular in cross section, the sleeve 1 and the lid member 30 may be formed to have a rectangular cross section.

The lid member 30 can be omitted if it can be confirmed that there is no problem in practical durability such as fire noise, leakage, leakage, fire resistance, and the like. A lid member, a cover member, or a cap other than the lid member 30 may be used as the lid member.

In the above-described embodiment, the sleeve 10 is installed from the bottom. However, the sleeve 10 of the present invention can be installed from the bottom.

The sleeve of the present invention is applicable not only to the floor (including the floor below the floor, which is relatively the floor of the concrete installation but also the ceiling floor) or the wall of a side wall or the like, .

Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited thereto.

Example

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail by way of examples with reference to the drawings. The present invention is not limited by these examples.

Examples 1 to 5 and Comparative Examples 1 to 2

A polyvinyl chloride (PVC) resin was used as the main material of the ring cover as the first sleeve. When the ring cover is made thermally expandable, "GREP-EG" manufactured by Toso Corporation is used as the thermally expandable graphite. Also, &quot; ADT351 &quot; manufactured by ADT Corporation was used as the thermally expandable graphite of the expansion sleeve member as the second sleeve. The through sleeves produced in Examples 1 to 5 and Comparative Examples 1 and 2 were fixed to each other by using a screw or a wire. The concrete was poured into a mold and dried for 10 days to prepare a specimen having a sleeve with a center of 600 x 1200 mm x 150 mm.

The sleeve of Comparative Example 1 is composed of only the second sleeve, and the sleeve of Comparative Example 2 is composed of the entirety of the second sleeve covered by the first sleeve.

A VU tube (outer diameter 114 mm, thickness 3.1 mm, JIS standard K6741) of PVC 100 was piped through the sleeve and exposed to the bottom of 300 mm and the top of 500 mm. The clearance between the sleeve and the pipe at the sleeve diameter was 34 mm. The aspect ratios of the thermally expansible graphite and the composition of each combination are shown in Table 1. In the table, &quot; - &quot; In the table, L (mm) corresponds to L shown in Fig. 4, the case where the lower end of the first sleeve is above the upper end of the body portion of the second sleeve is defined as + (plus) ).

(Moldability)

Both the examples 1 to 5 and the comparative examples 1 and 2 can injection-mold a long mold releasing body having a beautiful surface at a temperature of 170 to 190 占 폚 so that the ring cover and the expansion sleeve are combined to form a molding sleeve Mm, height 150 mm, thickness 5 mm). There was no adhesion of the blend to the screw and the mold after molding, and the moldability was good.

(Aspect ratio)

SEM cross-section photographs were used to measure the scale length of the photograph of the thermally expansible graphite, and the aspect ratio was calculated by conversion.

(Expansion magnification)

A test piece (100 mm in length, 100 mm in width, and 2.0 mm in thickness) made of a molded article of the thermally expandable refractory resin material of Examples 1 to 5 and Comparative Examples 1 and 2 was supplied to an electric furnace and heated at 600 캜 for 30 minutes Then, the thickness of the test piece was measured, and the (thickness of the test piece after heating) / (the thickness of the test piece before heating) was calculated as the expansion ratio.

(Residual hardness)

The heated test piece after measuring the expansion ratio was supplied to a compression tester ("Finger Peeling Tester", manufactured by KATO TECH CO., LTD.) And compressed at a rate of 0.1 cm / sec with an indenter of 0.25 cm 2 to measure the breaking point stress.

(Shape retention of residue)

The residual hardness is an index of the hardness of the residue after expansion. However, since the measurement is limited to the surface portion of the residue, the hardness of the entire residue may not be an indicator of the hardness of the entire residue. Were measured. The shape retentivity of the residue was measured by visually observing the ease of disintegration of the residue at the time when both ends of the specimen having the expansion ratio measured were held by hand. The case where the specimen was lifted without collapsing was evaluated as pass (PASS), and the case where the specimen was not collapsed and lifted was evaluated as FAIL.

(Fire resistance test)

The piping was adjusted in position so that the clearance between the sleeve main body and the pipe was 10 mm or more, and the pipe was heated in the horizontal direction for 2 hours along the heating curve of ISO 834. The case where the through-pipe temperature at the bottom of 25 mm is less than the initial temperature + 180 ° C. and the flame does not pass through is evaluated as PASS. If the initial temperature is +180 ° C. or more or the flame appears through the bottom- Was evaluated as FAIL.

(Adherence of residue)

The weight of the second sleeve before the fire resistance test and the weight of the second sleeve residue remaining in close contact with the penetration portion after the fire resistance test were measured. The residual weight ratio of the second sleeve after the fire resistance test before the fire resistance test was calculated and used as a measure of the adhesion with concrete.

(Impact resistance)

The sleeve was placed under the environment of -10 ° C for one week, and dropped to the bottom of the concrete at a height of 3 m to check whether the sleeve was deformed or damaged. N3. PASS was used to determine if there was no obvious deformation or damage from the naked eye, and FAIL was used if there was deformation or damage even once.

Table 1 and Table 2 show the results of measurement of the expansion ratio, residual hardness, shape retention of the residue, and the fire resistance test of Examples 1 to 5 and Comparative Examples 1 and 2. In Examples 1 to 5, the thermal expansion material was sufficiently expanded, the expansion residue was firmly maintained, and the fire resistance test was PASS. In Comparative Examples 1 and 2, however, the residue was not firmly maintained and was FAIL. In Comparative Examples 1 and 2, the heat insulating structure was not formed by the expansion residue, the temperature of the bottom-surface pipe rose, and holes were drilled in the pipe, and flames appeared.

Examples 6 to 10

The blend containing the components shown in Table 3 was supplied to an injection molding machine in the same manner as described above with respect to Examples 1 to 5 and Comparative Examples 1 and 2, The ring cover and the expansion sleeve were combined to form a molding sleeve.

(Polymerization degree 1000, referred to as &quot; PVC &quot;) in Example 6 and ethylene-vinyl acetate copolymer resin (EVAFLEX EV360, EVA manufactured by Mitsui DuPont Polychemical Co., (Etsu Chemical Co., Ltd .; "E807" manufactured by Yuka Shell Co., Ltd.) and a diamine-based curing agent (manufactured by Yucca Shell Co., Ltd.) were used in Example 8, an ethylene-propylene-diene rubber (Mitsui EPT3092M, (&Quot; EKFL052 &quot;) in an amount of 3: 2, kneading with a blend raw material and curing by heating, and Example 10 using an olefinic thermoplastic elastomer (Thermoran 3000 manufactured by Mitsubishi Chemical Corporation, referred to as &quot; TPO &quot;) Respectively.

In all of Examples 6 to 10, it was possible to injection-mold a long molded article having a beautiful surface at 170 to 190 DEG C, and a molding sleeve (inner diameter: 148 mm, height: 150 mm, thickness: 5 mm) was obtained by combining the ring cover and the expansion sleeve . There was no adhesion of the blend to the screw and the mold after molding, and the moldability was good.

In all of the molded articles of Examples 6 to 10, a comparatively high expansion ratio and high residual hardness were exhibited and the fire resistance performance was PASS, as in Examples 1 to 5.

Claims (15)

A sleeve for forming a through hole in a building,
A first sleeve having a body portion,
And a second sleeve having a thermally expansible body portion that is fittable with the first sleeve,
Wherein at least a portion of the body portion of the second sleeve is exposed while the first sleeve and the second sleeve are sandwiched therebetween. The method according to claim 1,
The ratio between the expansion ratio of the main body portion of the first sleeve and the expansion ratio of the main body portion of the second sleeve,
0? (Expansion ratio of the main body of the first sleeve / expansion ratio of the main body of the second sleeve) <1
In, sleeve. 3. The method according to claim 1 or 2,
Wherein the body portion of the first sleeve is non-inflatable. 4. The method according to any one of claims 1 to 3,
Wherein the first sleeve and the second sleeve are engaged with each other so that 0 &lt; (the exposed area of the outer circumferential surface of the second sleeve / the exposed area of the outer circumferential surface of the first sleeve) x 100? 5. The method according to any one of claims 1 to 4,
10? (Volume of the main body of the second sleeve) / (sum of the volume of the first sleeve and the volume of the second sleeve) x 100? 80. 6. The method according to any one of claims 1 to 5,
And the outer diameter of the body portion of the second sleeve is equal to or greater than the inner diameter of the body portion of the first sleeve. 7. The method according to any one of claims 1 to 6,
(I) the inner diameter of the body portion of the first sleeve is smaller than the inner diameter of the body portion of the second sleeve,
(Ii) the inner diameter of the body portion of the first sleeve is equal to the inner diameter of the body portion of the second sleeve,
(Iii) the inner diameter of the main body of the first sleeve is larger than the inner diameter of the main body of the second sleeve, and the difference between the inner diameter of the main body of the second sleeve and the inner diameter of the main body of the first sleeve is 8% to be,
(I) to (iii) of the sleeve. 8. The method according to any one of claims 1 to 7,
The end of the first sleeve or the second sleeve forming the fitting portion of the first sleeve and the second sleeve and the end of the first sleeve or the second sleeve and the end of the second sleeve or the first sleeve facing the axial direction of the sleeve, The gap L between the surfaces
0 &lt; L &lt; (first sleeve length / 2)
In, sleeve. 9. The method according to any one of claims 1 to 8,
Wherein in the fitting portion of the first sleeve and the second sleeve, the facing circumferential surfaces of the first sleeve and the second sleeve are in contact with each other. 10. The method according to any one of claims 1 to 9,
Wherein an annular member having one or a plurality of attachment portions is formed at one end of an outer peripheral surface of a body portion of the first sleeve and / or the second sleeve. 10. The method according to any one of claims 1 to 9,
Wherein an annular protrusion protruding from the main body is formed at a position spaced apart from the end of the main body of the first sleeve and / or the second sleeve. 12. The method according to any one of claims 1 to 11,
And a third sleeve fitted to the first sleeve or the second sleeve. As the compartment penetration structure,
Floor or wall,
A structure as claimed in any one of claims 1 to 12, wherein the sleeve is provided on the floor or the wall. 14. The method of claim 13,
And a piping or wiring disposed in the sleeve. As a refractory filling structure,
A sleeve according to any one of claims 1 to 12,
A pipe or wire disposed in the sleeve,
A refractory filling structure having a stationary frame mounted on a first sleeve.

Images