Insulation structure, falling prevention tool, and method for installing insulation structure

Abstract

To provide an insulation structure for performing insulation efficiently and accurately, a falling prevention tool, and a method for installing the insulation structure.SOLUTION: A ceiling insulation structure A1 provided with an insulation layer 11a, an insulation material 11b, and a slab 12 comprises a falling prevention tool 20, a fixing tool 30 on an upper surface of the insulation material 11b, and a coupling material 40. The falling prevention tool 20 comprises multiple insertion plates embedded in the insulation layer 11a and having a return plate, and a top plate that fixes the insertion plate. The coupling material 40 connects the top plate of the falling prevention tool and the fixing tool.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a ceiling insulation structure having an insulation panel on the underside of a ceiling slab, and more particularly to an insulation structure in which a ceiling slab and an insulation panel are integrated, a fall prevention device, and a construction method for the insulation structure. [Background technology]

[0002] In some buildings, a ceiling insulation structure is used in which insulation panels are placed on the underside of a ceiling slab. In this case, the ceiling slab is constructed by placing insulation panels on a formwork and pouring concrete on top of the panels. Furthermore, a ceiling insulation structure in which insulation panels and a ceiling slab are integrated has also been considered (see Patent Document 1). In the ceiling insulation structure described in this document, a plurality of insulation panels with grooves formed on their sides are placed on a formwork with the grooves facing each other. Then, insulation blocks are placed by fitting them from one groove to the other. Next, metal fittings are placed on the insulation panels. Then, the metal fittings and the insulation blocks are connected with screws, and concrete is poured on the insulation panels to construct the ceiling slab, and at the same time, the metal fittings are buried in the ceiling slab.

[0003] Also, in the roof structure of a freezer or refrigerated warehouse, a thermally insulated and waterproof roof structure in which the framework, thermal insulation layer, and waterproof layer are integrated is being considered (see Patent Document 2). In the thermally insulated and waterproof roof structure described in this document, the thermal insulation panel is attached to the deck plate by a fastener, or to a fastener attached to the thermal insulation panel on the lower layer. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2022-174816 A [Patent Document 2] Utility Model Registration No. 3182576 Summary of the Invention [Problem to be solved by the invention]

[0005] In refrigerated warehouses, thicker insulation is required for the F-class (freezer-class) temperature zone. When multiple layers of insulation are used, the adhesion between the layers may not be sufficient. [Means for solving the problem]

[0006] The thermal insulation structure for solving the above problem includes a lower layer insulation material and an upper layer insulation material, a fall prevention device that is embedded in the lower layer insulation material and includes a plurality of insertion plates having return plates and a top plate that fixes the insertion plates, a fixing device for an upper surface of the upper layer insulation material, and a connecting member that connects the top plate of the fall prevention device and the fixing device.

[0007] The anti-fallout device for solving the above problem comprises a plurality of insertion plates embedded in the insulation material, a return plate provided on the insertion plates, and a top plate that fixes the insertion plates and is installed on the upper surface of the insulation material.

[0008] A construction method for an insulation structure to solve the above problems is a construction method for an insulation structure comprising a lower layer insulation material, an upper layer insulation material, and a concrete member, in which a fall prevention device comprising a plurality of insertion plates having return plates and a top plate for fixing the insertion plates is embedded in the lower layer insulation material, the upper layer insulation material is installed above the lower layer insulation material, a fixing device is installed on the top surface of the upper layer insulation material, the top plate of the fall prevention device and the fixing device are connected with a connecting material, a concrete member is poured above the upper layer insulation, and the fixing device is embedded. Effect of the Invention

[0009] The present invention can efficiently construct a heat insulating structure. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is an explanatory diagram of a heat insulating structure according to an embodiment. [Diagram 2]FIG. 4 is an explanatory diagram of a fixing member for the thermal insulation material according to the embodiment. [Diagram 3] 1A to 1E are explanatory views of a fall-off prevention device according to an embodiment, in which (a) is a top view, (b) is a left side view, (c) is a front view, (d) is a right side view, and (e) is a bottom view. [Figure 4] FIG. 2 is a perspective view of the fall-off prevention device according to the embodiment. [Diagram 5] 1A is an explanatory diagram of a construction method according to an embodiment, in which (a) shows the installation of formwork, (b) shows the arrangement of the lower insulation layer, (c) shows the installation of anti-fall devices, and (d) shows the arrangement of the upper insulation layer. [Figure 6] 5A is an explanatory diagram of a construction method according to an embodiment, in which (a) is a diagram illustrating installation of a fastener, (b) is a diagram illustrating connection between a fall prevention device and a fastener, and (c) is a diagram illustrating pouring of concrete. [Figure 7] FIG. 11 is an explanatory diagram of a modified example of a heat insulating structure. [Figure 8] 13 is an explanatory diagram of a fixing member for the thermal insulation material in a modified example. FIG. [Figure 9] 13A and 13B are explanatory diagrams of a modified example of a thermal insulation structure, in which (a) shows a case where different types of fixing members are used depending on the story, and (b) shows a case where the same type of fixing members is used for multiple stories. [Figure 10] 13 is an explanatory diagram of a modified example of a fall-off prevention device. FIG. [Figure 11] FIG. 13 is a perspective view of a modified example of a fall-off prevention device. [Figure 12] 11A to 11E are explanatory views of a modified example of a fall-off prevention device, where (a) is a top view, (b) is a left side view, (c) is a front view, (d) is a right side view, and (e) is a bottom view. [Figure 13] 11A to 11E are explanatory views of a modified example of a fall-off prevention device, where (a) is a top view, (b) is a left side view, (c) is a front view, (d) is a right side view, and (e) is a bottom view. [Figure 14] 11A to 11E are explanatory views of a modified example of a fall-off prevention device, where (a) is a top view, (b) is a left side view, (c) is a front view, (d) is a right side view, and (e) is a bottom view. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment that embodies a thermal insulation structure, a fall prevention device, and a construction method of the thermal insulation structure will be described with reference to Figs. 1 to 6. Here, as a thermal insulation structure for a refrigerated warehouse, a ceiling thermal insulation structure that blocks heat from a ceiling slab (concrete member) made of concrete will be described. The ceiling thermal insulation structure of this embodiment is assumed to use two thermal insulation layers.

[0012] As shown in the cross-sectional view of Fig. 1, the ceiling insulation structure A1 has a slab 12 (ceiling slab) provided on an insulation layer 11a (lower layer insulation material) and an insulation layer 11b (upper layer insulation material). Styrofoam (registered trademark) can be used for the insulation layers 11a and 11b. The slab 12 is made of reinforced concrete.

[0013] The heat insulating layers 11a and 11b are bonded together with an adhesive b1. Furthermore, the heat insulating layers 11a and 11b are joined together by a fixing member a1. In the fixing member a1, the fall prevention device 20 and the fixing device 30 are connected by a connecting material 40. A part of the fall prevention device 20 is embedded in the heat insulating layer 11a. The connecting material 40 is embedded in the heat insulating layer 11b, and the fixing device 30 is embedded in the slab 12. In this embodiment, the fixing device 30 is a C-channel member, and a light-weight ceiling bar (M bar, lip-channel steel) can be used.

[0014] As shown in Fig. 2, the connecting material 40 fixes the fall prevention device 20 and the fixing device 30. The connecting material 40 is composed of a screw or the like having a shaft portion that is longer than the thickness of the insulating layer 11b and has a length that stops within the insulating layer 11a. This connecting material 40 has the strength to penetrate the fall prevention device 20. The shaft portion of the connecting material 40 penetrates a hole (not shown) formed in the fixing device 30, and the head of the screw is caught in this hole, and the tip is inserted into the fall prevention device 20. The hole in the fixing device 30 may be formed by screwing the connecting material 40.

[0015] FIG. 3 shows five views of the fall prevention device 20. FIG. 3(a) is a top view, FIG. 3(b) is a left side view, FIG. 3(c) is a front view, FIG. 3(d) is a right side view, and FIG. 3(e) is a bottom view. As shown in FIG. 3, the fall prevention device 20 has a square steel top plate 21 with a side of 70 mm. An insertion plate 22 is provided on each of the four sides of the top plate 21. Each insertion plate 22 is configured in a pentagonal shape with two right angles and has a pointed protrusion at the tip side. Note that the sides of adjacent insertion plates 22 do not need to be close to each other and may be spaced apart. A return plate 23 is provided in the central region of each insertion plate 22. This return plate 23 is formed by fixing the tip side of each insertion plate 22 and spreading the cut-in area outward by bending.

[0016] 4 is a perspective view of the fall prevention device 20. When the top plate 21 of the fall prevention device 20 is disposed upward, the protruding portion on the tip side of the insertion plate 22 is disposed downward. The return plate 23 is disposed so as to open upward. In this case, the upper end of the return plate 23 is disposed 10 mm or more below the top plate 21.

[0017] (Construction method) Next, a method for constructing the ceiling insulation structure will be described with reference to Figs. First, as shown in FIG. 5(a), a formwork 10 is placed.

[0018] Next, as shown in Fig. 5(b), a heat insulating layer 11a is placed on the formwork 10. When the heat insulating layer 11a is formed by arranging a plurality of heat insulating materials, adhesive tape is applied to the undersides of the joint areas formed by the adjacent heat insulating materials to cover them.

[0019] 5(c), the insertion plate 22 of the fall-off prevention device 20 is embedded in the insulating layer 11a. Specifically, the fall-off prevention device 20 is pressed against the insulating layer 11a to embed the insertion plate 22 in the insulating layer 11a.

[0020] Next, as shown in FIG. 5(d), adhesive b1 is applied to the upper surface of the heat insulating layer 11a, and the heat insulating layer 11b is installed. 6(a), the fixing device 30 is installed on the upper surface of the heat insulating layer 11b. In this case, the fixing device 30 is placed so that it is directly above the fall-off prevention device 20.

[0021] 6(b), the connecting material 40 is penetrated through the fixing device 30 and through the insulating layer 11b toward the top plate 21 of the fall-off prevention device 20. In this case, the head of the connecting material 40 is caught on the fixing device 30, and the tip of the connecting material 40 is screwed into and penetrates the fall-off prevention device 20, thereby connecting the fixing device 30 and the fall-off prevention device 20.

[0022] Next, as shown in Fig. 6(c), concrete is poured onto the upper surface of the insulating layer 11b to form the slab 12. In this case, the fasteners 30 are embedded and fixed within the slab 12. The weight of this concrete strengthens the adhesion between the insulating layers 11a and 11b by the adhesive b1. Then, the formwork 10 is removed to form the ceiling insulation structure A1 shown in FIG.

[0023] (action) The fall-off prevention device 20 and the fixing device 30 are fixed by the connecting material 40, so that the heat insulating layer 11a and the heat insulating layer 11b are integrated. In this case, the insertion plate 22 of the fall-off prevention device 20 includes the return plate 23, which resists the pulling force.

[0024] According to this embodiment, the following effects can be obtained. (1) In this embodiment, the insertion plate 22 of the fall-off prevention device 20 is provided with the return plate 23, so that it is possible to prevent the insertion plate 22 of the fall-off prevention device 20 from being pulled out from the insulating layer 11a. Since the insertion plate 22 of the fall-off prevention device 20 is embedded in the insulating layer 11a, it does not become a thermal bridge.

[0025] (2) In this embodiment, the fall-off prevention device 20 and the fixing device 30 are connected by the connecting material 40, so that the insulating layer 11a and the insulating layer 11b can be integrated. As a result, a thermally insulated structure for a refrigerated warehouse or the like can be realized with a multi-layer insulating layer consisting of the insulating layers 11a and 11b.

[0026] (3) In this embodiment, the heat insulating layers 11a and 11b are bonded to each other with the adhesive b1, and therefore can be firmly integrated over the entire surfaces. (4) In this embodiment, the fall-prevention device 20 has the top plate 21. Therefore, even if the fall-prevention device 20 and the fixing device 30 are misaligned, the connecting material 40 can be passed through.

[0027] (5) In this embodiment, the fasteners 30 are embedded in the slab 12. This allows the slab 12 to support the integrated thermal insulation layers 11a and 11b.

[0028] This embodiment can be modified as follows: This embodiment and the following modifications can be combined with each other to the extent that there is no technical contradiction. -Example of changing fixing parts In the above embodiment, the fixture 30 is not limited to a light ceiling bar. For example, a fixture having an insert plate on the top plate may be used. In this case, for example, a shape similar to the fixture disclosed in Patent Document 2 may be used.

[0029] As shown in FIG. 7, a fastener 50 is embedded in the heat insulating layer 11b. 8, the fixing member a2 is realized by penetrating the connecting material 40 through the fixing device 50 and the fall-off prevention device 20. In this case, the integrated insulating layers 11a, 11b are supported by the adhesiveness between the insulating layer 11b and the slab 12. This makes it possible to suppress protrusions on the heat insulating layer 11b when pouring concrete for the slab 12.

[0030] Example of ceiling insulation structure change In the above embodiment, the ceiling insulation structure A1 uses two layers of insulation material, the insulation layers 11a and 11b, but the insulation layers are not limited to two layers.

[0031] A case where three layers of heat insulating material are used will be described with reference to Fig. 9. Fig. 9 shows the state before the formwork 10 is removed. 9(a), the heat insulating layers 11a and 11b are integrated using a fixing member a2. The third heat insulating layer 11c is integrated with the heat insulating layer 11b using the fixing member a1 of the above embodiment.

[0032] This allows the three layers to be integrated using the fixing members a1 and a2, and to be supported by the slab 12. Since the adjacent layers are integrated, there is no need to use long screws, and no thermal bridges are created. Furthermore, since it is only necessary to penetrate the fall prevention device 20 directly below, efficient construction can be achieved.

[0033] 9(b), the heat insulating layers 11a and 11b and the heat insulating layers 11b and 11c are integrated together using a fixing member a2. In this case as well, the support member for the heat insulating layer 11b is embedded in the slab 12 and fixed thereto. As a result, the three layers can be integrated using the fixing members a2, and can be supported by the slab 12. Since a common fixing member a2 is used, the fixing member can be standardized, and the number of types of parts can be reduced.

[0034] Example of changing the return plate In the above embodiment, the return plate 23 of the fall-off prevention device 20 is formed by fixing the tip side of each insertion plate 22 and bending the cut-out region. As long as the return plate 23 that is expanded outward can be realized, the formation method is not limited. 10, the return plate 23a may be fixed to the insertion plate 22 with a screw 24. Alternatively, the return plate 23a may be welded to the insertion plate 22.

[0035] Example 1 of change to fall prevention device In the above embodiment, the fall-off prevention device 20 has a total of four insertion plates 22 provided on each of the four sides of the rectangular top end plate 21. The number of insertion plates 22 is not limited.

[0036] 11, a fall prevention device 20a may be used in which a total of two insertion plates 22 are provided on two sides of a rectangular top plate 21. In this case, too, providing the insertion plates 22 on two opposing sides allows for stable insertion into the thermal insulation material.

[0037] Example 2 of change to fall prevention device In the above embodiment, the return plate 23 is provided in the central region of each insertion plate 22. The position of the return plate 23 is not limited to the central region.

[0038] As shown in Fig. 12, a fall-off prevention device 20b may be used in which a return plate 23 is provided at the end of an insertion plate 22. Fig. 12(a) is a top view of the fall-off prevention device 20b, Fig. 12(b) is a left side view, Fig. 12(c) is a front view, Fig. 12(d) is a right side view, and Fig. 12(e) is a bottom view.

[0039] The number of return plates 23 provided on each insertion plate 22 is not limited to one on each surface. As shown in Fig. 13, a fall-off prevention device 20c may be provided with a plurality (two or more) of return plates 23 of an insertion plate 22. Fig. 13(a) is a top view of the fall-off prevention device 20c, Fig. 13(b) is a left side view, Fig. 13(c) is a front view, Fig. 13(d) is a right side view, and Fig. 13(e) is a bottom view.

[0040] Example 3 of change to fall prevention device In the above embodiment, each of the insertion plates 22 is configured in a pentagonal shape and has a protruding portion on the tip side. The shape of the insertion plate 22 is not limited to a pentagonal shape as long as it has a protruding portion on the tip side.

[0041] As shown in Fig. 14, a fall prevention device 20d using a polygonal shape having multiple protrusions may be used in the insertion plate 22. Fig. 14(a) is a top view of the fall prevention device 20d, Fig. 14(b) is a left side view, Fig. 14(c) is a front view, Fig. 14(d) is a right side view, and Fig. 14(e) is a bottom view. In this case, a return plate 23b may be formed by bending some of the protrusions.

[0042] In the above embodiment, styrofoam is used as the heat insulating material, but the material is not limited to styrofoam as long as it can provide heat insulation. In the above embodiment, screws are used as the connecting members 40, but the connecting members are not limited to screws as long as they can connect the fall-off prevention device and the fixing device.

[0043] In the above embodiment, the fall prevention device 20 has a square steel top plate 21 measuring 70 mm on each side. The shape of the top plate 21 is not limited to a square. A polygonal shape such as a rectangle, triangle, or hexagon may also be used. In this case, an insertion plate equipped with a return plate is provided on the top plate 21. [Explanation of symbols]

[0044] A1...ceiling insulation structure, a1...fixing member, 11a, 11b...insulating layer, 20...anti-fall device, 30...fixing device, 40...connecting material.

Claims

1. A thermal insulation structure having a lower layer insulation material and an upper layer insulation material, A fall prevention device including a plurality of insertion plates embedded in the lower layer insulation material and having a return plate, and a top plate for fixing the insertion plates; A fixing device on the upper surface of the upper layer insulation material; An insulating structure comprising a top plate of the anti-fall-off device and a connecting material that connects the top plate to the fixing device.

2. A concrete member is placed on the upper layer insulation material, 2. The thermal insulation structure according to claim 1, wherein the fixing device is embedded in a concrete member above the upper layer insulation material.

3. a plurality of insert plates embedded in the insulation material; A return plate provided on the insertion plate; A fall prevention device characterized by comprising: a top plate that fixes the insertion plate and is installed on the upper surface of the insulation material.

4. 4. The device according to claim 3, wherein the return plate is formed by bending a part of the insertion plate.

5. A construction method for a thermal insulation structure including a lower layer insulation material, an upper layer insulation material, and a concrete member, comprising: A fall prevention device including a plurality of insertion plates having return plates and a top plate for fixing the insertion plates is embedded in the lower layer insulation material, The upper layer insulation material is installed above the lower layer insulation material, A fixing device is installed on the upper surface of the upper layer insulation material, The top plate of the fall prevention device and the fixing device are connected with a connecting material, A construction method for an insulating structure, comprising pouring a concrete member above the upper layer of insulation and embedding the fixing device therein.

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