JP3619284B2 - Thermal insulation sleeve for construction - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a thermal insulation sleeve for building, which is provided so as to penetrate through a concrete frame wall constituting a skeleton of a building, and to connect and connect ducts arranged across the frame wall.
[0002]
[Prior art]
In general, a building is provided by penetrating through a sleeve for connecting ducts to a floor wall of a concrete frame that constitutes the skeleton, such as a floor slab, a partition wall, and a beam, and is arranged with the sleeve separated by the sleeve. In order to prevent the air-conditioning air flowing through the sleeve from being affected by the outside air temperature, the sleeve and the duct are conventionally insulated from the outside air by a heat insulating material. It is done.
[0003]
By the way, in order to provide a heat insulation sleeve through the concrete frame wall, conventionally, as shown in FIG. 5, in order to form a concrete frame wall W, a concrete is provided between the mold panels P ₁ and P ₂ of the mold F. The sleeve body 01 is embedded and fixed in the concrete. Then, the sleeve main body 01 is passed through the connecting short tube 02 having a smaller diameter, and the annular gap between the sleeve main body 01 and the connecting short tube 02 is filled with glass wool 04 as a heat insulating material. The ducts D ′ and D ″ are connected to the outer periphery, and the outer circumferences of these ducts D ′ and D ″ are covered with the heat insulating material 011.
[0004]
[Problems to be solved by the invention]
By the way, in the conventional heat insulating sleeve, after the sleeve main body is embedded and fixed in the concrete frame wall, the heat insulating material is manually filled into the annular gap between the sleeve main body and the connecting short pipe penetrating therethrough. There is a problem that it is necessary to perform troublesome work, and the construction cost of the heat insulation sleeve is greatly increased.
[0005]
The present invention has been made in view of such circumstances, so that the heat insulation sleeve can be provided through the concrete frame wall without performing the filling operation of the heat insulation material, so that the above-described problem can be solved. An object of the present invention is to provide a novel heat insulating sleeve for construction.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a feature of the invention described in claim 1 is that the building is provided to penetrate a concrete frame wall of a building and communicate with and connect ducts arranged across the frame wall. A sleeve main body that is fixedly penetrated to the concrete housing wall, and a cylindrical connection sleeve that is detachably connected to the sleeve main body and protrudes outside the concrete housing wall. The main body includes a cylindrical outer cylinder embedded and fixed in the concrete frame wall, a cylindrical heat insulating material provided along the inner peripheral surface of the outer cylinder, and a cylindrical heat insulating material provided along the inner surface of the heat insulating material . more becomes the inner cylinder, the least one end portion is also of the sleeve body, a plurality of fixing bolts arranged radially, with are previously secured before embedded and fixed into the concrete skeleton wall of the sleeve body, the The inner end portion of the constant volts protruded on the inner peripheral surface radially inward side of the inner cylinder, while the connection sleeve is at one end thereof, inserted drop capable fitted to the inner peripheral surface of the inner cylinder while have a connection portion to be inserted, this connection portion, an outer end the connecting part of the end opening and a plurality of though the fixing bolts of the inner end portion engageable with the key hole-shaped plurality of respectively An engagement slit is formed, and the inner end of each of the fixing bolts is engaged with the inner cylinder from the radially inner side with the inner end engaged with the corresponding engagement slit. Thus, a nut capable of fixing the connection sleeve is screwed onto the sleeve body .
[0007]
Since the purpose achieved, it is an aspect of the invention described in claim 2, in those of claim 1, wherein the connecting sleeve lies in a damper for fire protection or smoke.
[0008]
Furthermore, in order to achieve the object, a feature of the invention described in claim 3 is that a heat insulating material is surrounded on the outer periphery of the connection sleeve.
[0009]
[Operation]
According to the above configuration, the heat retaining sleeve includes the sleeve main body that is embedded and fixed in the concrete housing wall, and the cylindrical connection sleeve that is removably inserted into the sleeve main body and protrudes outside the housing wall. The sleeve body includes a cylindrical outer cylinder embedded and fixed in the concrete frame wall, a cylindrical heat insulating material provided along the inner peripheral surface of the outer cylinder, and an inner surface of the heat insulating material. Because it is made of a cylindrical inner cylinder that is installed, heat insulation material is held in the sleeve body by the inner cylinder, so the conventional heat insulation material filling work becomes unnecessary, and the insulation sleeve is attached to the concrete frame wall Cost is reduced.
[0010]
Further, in particular, at least one end of the sleeve body is fixed in advance with a plurality of fixing bolts arranged radially before the sleeve body is embedded and fixed to the concrete frame wall, and the inner end of the fixing bolt is The connection sleeve protrudes radially inward from the inner peripheral surface of the inner cylinder, and the connection sleeve has a connection portion that is removably inserted into the inner peripheral surface of the inner cylinder at one end thereof. In addition, a plurality of hook-shaped engagement slits that are open at the ends of the connecting portions and engage with the inner ends of the plurality of fixing bolts are formed, and the inner ends of the respective fixing bolts are formed. A nut that can be engaged with the inner cylinder from the radially inner side to fix the connection sleeve to the sleeve body with the inner end engaged with the corresponding engagement slit is screwed to the part. So, insert the connection sleeve (connection part) into the inner peripheral surface of the inner cylinder. , And the engagement slit is engaged with the inner end portion of the fixing bolt, and in this state, the nut is screwed into the inner end portion of the fixing bolt and tightened to secure the connection sleeve to the sleeve body. Connection can be fixed.
[0011]
【Example】
The first embodiment of the present invention will be described below with reference to FIGS.
[0012]
FIG. 1 is a cutaway perspective view of the heat insulation sleeve of the present invention, FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1 in a state where the heat insulation sleeve is provided on the concrete housing wall, and FIGS. It is a figure which shows the attachment process to a concrete frame wall.
[0013]
First, the structure of the heat insulation sleeve S will be described. The heat insulation sleeve S is composed of a sleeve body 1 formed in a hollow cylindrical shape with both ends open, and a connection sleeve 2 that is removably inserted into the sleeve body 1. Yes.
[0014]
The sleeve body 1 is provided with a heat insulating material, that is, a glass wool 4, formed in a hollow cylindrical shape on the entire inner peripheral surface of the outer tube 3 made of a zinc iron plate formed in a hollow cylindrical shape with both ends open. The inner cylinder 5 formed in the hollow cylinder shape made from a steel plate is installed in the inner peripheral surface of this, and it forms in a three-layer hollow cylinder shape.
[0015]
Four fixing bolts 6 are provided radially at substantially equal intervals in the circumferential direction at both ends of the sleeve main body 1, that is, slightly inside the end face. These fixing bolts 6, the outer tube 3, through the heat insulating material 4 and the inner cylinder 5, the head portion 6 ₁ is welded to the outer surface of the outer cylinder 1, also inner than the inner end 6 ₂ the inner tube 5 that The wing nut 7 can be screwed to the inner end.
[0016]
The three members of the outer cylinder 1, the heat insulating material 4 and the inner cylinder 5 may be fixed together by a bonding means such as adhesion, or may be fixed by the fixing bolt 6.
[0017]
Further, four stoppers 8 are radially outwardly welded to the outer peripheral surface of one end portion (the left end portion in FIGS. 1 and 2) of the sleeve body 1 at substantially equal intervals in the circumferential direction. The stopper 8 is for cantilever-supporting the sleeve body 1 itself to the mold panel P ₁ constituting the mold F in a cantilever manner as will be described later.
[0018]
Meanwhile the connection sleeve 2 is formed in a hollow cylindrical shape galvanized sheet, one end is formed in the connecting portion 2 ₁ of the outer diameter to be fitted into inner peripheral surface of an end portion of the sleeve body 1 . Also on the outer peripheral surface of both ends of the connection sleeve 2 has stopper rib 2 _second annular is formed bulging integrally, the stopper ribs 2 _1, the connection sleeve 2 together to reinforce the connection sleeve 2 itself, the sleeve body 1 functions as a stopper when inserted into 1. Also at one end of the connecting sleeve 2, in correspondence with the fixing bolt 6, and key-hole shaped engagement slit 10 having a hook portion 10 ₁ in the inner end of which is formed with the outer end is opened, These engagement slits 10 can be removably engaged with the fixing bolts 6.
[0019]
Next, referring to FIGS. 3 and 4, a heat-insulating sleeve S comprising a sleeve body 1 and a connecting sleeve 2 is inserted through a concrete frame wall W of a building, and ducts D ₁ and D ₂ are communicated with it. The connection process will be described.
[0020]
[1] As shown in FIG. 3, the sleeve body 1 is cantilevered by fastening the four retaining pieces 8 with a nail 9 at an appropriate position on _one mold panel P ₁ of the formwork F to be framed. It is temporarily fixed to the shape. Next, the other mold panel P ₂ of the frame F to be framed is applied to the free end of the sleeve body 1, and after fixing both the panels P ₁ and P ₂ , concrete is placed between them. .
[0021]
[2] A concrete frame wall W is formed between the left and right mold panels P ₁ and P ₂ by solidification of the cast concrete.
[0022]
With the subsequent disassembly of the mold F, as shown in FIG. 4, the left and right mold panels P ₁ and P ₂ are removed from the concrete frame wall W. The concrete frame wall W includes an outer cylinder 3, a heat insulating material 4 and The sleeve body 1 made of the inner cylinder 5 is embedded and fixed therethrough, and both end faces of the sleeve body 1 are naturally flush with both wall surfaces of the concrete frame wall W.
[0023]
[3] then the four engaging slit 10 of the connecting sleeve 2, is engaged with the four fixing bolts 6 of the sleeve body 1 respectively Rubeku, inner surface i.e. the connecting portion 2 ₁ a sleeve body 1 of the coupling sleeve 4 fitted to the inner cylinder 5, the stopper ribs 2 _2, after engaging the end face of the sleeve body 1, when rotating the connecting sleeve 2 to one slightly hook portion 10 ₁ inner end of the engagement slit 10 is respectively engaging the inner end 6 ₂ of the fixing bolts 6. As a result, the connection sleeve 2 is locked to the sleeve body 1. If it tightened wherein the inner end portion 6 ₂ is screwed a wing nut 7 of the fixing bolts 6 can be connected and fixed firmly connected sleeve 2 to both ends of the sleeve body 1.
[0024]
As described above, the heat insulation sleeve S including the sleeve body 1 and the connection sleeve 2 can be fixed to the housing wall W.
[0025]
Before the sleeve body 1 is embedded and fixed in the concrete housing wall W, the connection sleeve 2 may be connected to the sleeve body 1 in advance. In this case, the connection sleeve 2 can be immersed in the sleeve body 1. as, for example, lengthen the engagement slit 10, also stopper ribs 2 _2, it is necessary to means such that so as not to protrude outward.
[0026]
Thereafter, the duct D ₁ by conventional connecting means to the outer end of one of the connecting sleeve 2, also on the outer end of the other connecting sleeve 2, a damper Dp for fire protection or smoke is fixedly connected, further that D ₂ is connected to the outer end by another duct. In this case, the connection sleeve 2 and the damper Dp may be integrally formed.
[0027]
Further, a heat insulating material 11 such as glass wool is attached to the outer periphery of the connection sleeve 2 and the duct D ₁ and the connection sleeve 2, the damper Dp and the duct D ₂ , and the outer periphery of the heat insulating material 11 is made of a metal mesh, an aluminum foil, or the like. It is covered with a covering material 12.
[0028]
As mentioned above, although the Example of this invention was described, this invention is not limited to the Example, A various Example is possible within the scope of the present invention.
[0029]
For example, in the above embodiment, the sleeve is formed in a cylindrical shape, but it may be formed in another cylindrical shape such as a square tube. In addition, other known heat insulating materials may be used instead of glass wool as the heat insulating material, and the fixing bolts may be three or five or more, and the nut screwed there is outside the wing nut, Of course, other nuts may be used.
[0030]
【The invention's effect】
As described above, according to the present invention, the heat insulation sleeve includes the sleeve main body and the cylindrical connection sleeve that is detachably connected to the outer wall of the concrete frame , and the sleeve main body is made of concrete. more and outer tube cylindrical to be embedded and fixed in the skeleton wall, a cylindrical heat insulating material which is沿設the inner peripheral surface of the outer tube, a cylindrical inner cylinder which is沿設the inner surface of the heat insulating material As a result, it is not necessary to manually fill the heat insulating material in the conventional heat insulating sleeve, and the mounting cost of the heat insulating sleeve to the concrete frame wall can be greatly reduced.
[0031]
Further, in particular, at least one end of the sleeve body is fixed in advance with a plurality of fixing bolts arranged radially before the sleeve body is embedded and fixed to the concrete frame wall, and the inner end of the fixing bolt is The connection sleeve protrudes radially inward from the inner peripheral surface of the inner cylinder, and the connection sleeve has a connection portion that is removably inserted into the inner peripheral surface of the inner cylinder at one end thereof. In addition, a plurality of hook-shaped engagement slits that are open at the ends of the connecting portions and engage with the inner ends of the plurality of fixing bolts are formed, and the inner ends of the respective fixing bolts are formed. A nut that can be engaged with the inner cylinder from the radially inner side to fix the connection sleeve to the sleeve body with the inner end engaged with the corresponding engagement slit is screwed to the part. So, insert the connection sleeve (connection part) into the inner peripheral surface of the inner cylinder. , And the engagement slit is engaged with the inner end portion of the fixing bolt, and in this state, the nut is screwed into the inner end portion of the fixing bolt and tightened to secure the connection sleeve to the sleeve body. Connection can be fixed.
[Brief description of the drawings]
FIG. 1 is a cutaway perspective view of a heat insulation sleeve. FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. 1 with the heat insulation sleeve provided on the concrete frame wall. Fig. 4 is a diagram showing the mounting process. Fig. 4 is a diagram showing the mounting process of the thermal insulation sleeve to the concrete frame wall. Fig. 5 is a cross-sectional view of a conventional thermal insulation sleeve.
DESCRIPTION OF SYMBOLS 1 ... Sleeve body 2 ... Connection sleeve 2 ₁ ... Connection part 3 ... Outer cylinder 4 ... Thermal insulation material 5 ... Inner cylinder 6 ... Fixing bolt 6 ₂ ... Inner end 7 ... Nut (wing nut)
10 ... engaging slit 11 ... heat insulating material Dp ... damper W ...... body wall

Claims (3)

A thermal insulation sleeve for building for connecting ducts (D ₁ , D ₂ ) communicating with a concrete frame wall (W) of a building and being disposed across the frame wall (W). ,
A sleeve main body (1) that is penetrated and fixed to the concrete housing wall (W), and a cylindrical connection sleeve that is detachably connected to the sleeve main body (1) and protrudes outside the housing wall (W). 2)
The sleeve main body (1) includes a cylindrical outer cylinder (3) embedded and fixed in a concrete casing wall (W), and a cylindrical heat insulating material (along the inner peripheral surface of the outer cylinder (3)). 4) and a cylindrical inner cylinder (5) provided along the inner surface of the heat insulating material (4),
The least one end portion is also of the sleeve body (1) has a plurality of fixing bolts arranged radially (6) is pre-fixed prior to fixedly buried into the concrete skeleton wall of the sleeve body (1) (W) and with that, the inner end portion of the fixing bolt (6) (6 _2), protrude radially inwardly from the inner peripheral surface of the inner cylinder (5),
Meanwhile, the connecting sleeve (2) has on its one end, as well as have the said inner cylinder (5) inner peripheral surface tuning slide connected portion to be fitted in the (2 _1), the connecting portion (2 ₁ ), A plurality of hook-shaped engagements whose outer ends are open at the ends of the connecting portions (2 ₁ ) and can be engaged with the inner ends (6 ₂ ) of the plurality of fixing bolts (6), respectively. A joint slit (10) is formed ,
Each of the fixing bolts (6) has an inner end (6 ₂ ) with the inner end (6 ₂ ) engaged with the corresponding engagement slit (10), and the inner cylinder (5). And a nut (7) that can be engaged with the sleeve body (1) and fixed to the sleeve body (1) by being screwed into the sleeve main body (1) . Said connection sleeve (2), characterized in that a damper for fire protection or smoke (Dp), building insulation sleeve of claim 1, wherein. The heat insulating sleeve for building according to claim 1 or 2, characterized in that a heat insulating material (11) is surrounded on an outer periphery of the connection sleeve (2).

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