Near-zero-energy-consumption building outer wall external thermal insulation structure

Abstract

The utility model provides a near-zero-energy-consumption building outer wall external thermal insulation structure which comprises an installation keel arranged on the outer side of a wall body, a thermal insulation cushion layer is arranged between the installation keel and the wall body, the installation keel is fixedly installed on the outer side of the wall body through an expansion bolt, the expansion bolt is provided with a screw rod, and a thermal insulation piece is installed on the inner side of the installation keel in a sleeved mode. The outer side of the screw rod is sleeved with the heat insulation piece, and a nut abutting against the heat insulation piece is assembled on the outer side of the end of the screw rod; a first heat insulation layer is arranged on the outer side of the wall between the installation keels, a second heat insulation layer is arranged on the outer side of the installation keels, and an outer protection layer is arranged on the outer side of the second heat insulation layer. According to the utility model, the heat transfer between the mounting keel and the wall body is blocked through the heat insulation cushion layer, and the heat transfer between the mounting keel and the expansion bolt is blocked through the heat insulation piece, so that the heat transfer inside and outside the heat insulation structure can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of exterior wall insulation, and in particular relates to an exterior insulation structure of an exterior wall of a nearly zero-energy-consumption building. Background Art

[0002] Near-zero energy buildings refer to buildings whose energy consumption is close to zero. They are a type of building that is low-carbon, environmentally friendly, energy-saving and efficient.

[0003] In the prior art, a Chinese utility model patent document with authorization announcement number CN211341275U discloses an external insulation structure for an exterior wall of a near-zero energy building, wherein a plurality of anchors are arranged in a rock wool board, wherein one end of the anchor is connected to a first adhesive layer and the other end is connected to a calcium silicate board, and the anchor comprises a metal bracket, a first anchoring nail and a second anchoring nail; in the above-mentioned prior art, the rock wool board is fixed to the leveling layer by anchors, thereby increasing the firmness between the base wall and the rock wool board, and at the same time, the anchors make the connection between the rock wool boards tighter, but the arrangement of the anchors forms a thermal bridge between the inner and outer sides of the rock wool board, thereby affecting the insulation effect.

[0004] Therefore, it is necessary to design a near-zero energy building exterior wall insulation structure that can reduce heat transfer and improve insulation effect to solve the current technical problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a near-zero energy consumption building exterior wall external insulation structure which can reduce heat transfer and improve the thermal insulation effect.

[0006] The technical solution of the utility model is: a near-zero energy consumption building exterior wall external insulation structure, including an installation keel arranged on the outside of the wall, a heat insulation cushion layer is arranged between the installation keel and the wall, the installation keel is fixedly installed on the outside of the wall by an expansion bolt, the expansion bolt has a screw, the inner side of the installation keel is sleeved with a heat insulation piece, the heat insulation piece is sleeved on the outside of the screw, and a nut abutting against the heat insulation piece is assembled on the outside of the end of the screw; a first heat insulation layer is arranged on the outside of the wall between the installation keels, a second heat insulation layer is arranged on the outside of the installation keel, and an outer protective layer is arranged on the outside of the second heat insulation layer.

[0007] Preferably, a through hole matching the thermal insulation member is formed on the inner side of the mounting keel, the thermal insulation member has an insertion end matching the through hole, and a support portion integrally formed therewith is provided at one end of the insertion end away from the wall.

[0008] Preferably, a washer and a spring washer are sleeved on the outer side of the screw between the nut and the supporting portion.

[0009] Preferably, the insertion end and the support portion are an integral structure of polyurethane material, and the thermal insulation cushion layer is a polyurethane plate that matches the shape of the installation keel.

[0010] Preferably, the mounting keel is provided with mounting holes corresponding to the expansion bolts.

[0011] Preferably, a leveling layer is provided on the outer side of the wall, and the first heat insulation layer is bonded to the outer side of the leveling layer.

[0012] Preferably, the second thermal insulation layer is fixed to the outer side of the installation keel by self-tapping anchor rods, and an anchor plate is provided on the end of the self-tapping anchor rod away from the installation keel, and the anchor plate abuts against the outer side of the second thermal insulation layer.

[0013] Preferably, the outer protective layer comprises a mortar layer arranged on the outside of the second heat insulating layer, a mesh layer is arranged inside the mortar layer, and a paint layer is arranged on the outside of the mortar layer.

[0014] Preferably, the first thermal insulation layer is a graphite-modified cement-based thermal insulation board.

[0015] Preferably, the second thermal insulation layer is a rock wool board.

[0016] Beneficial effects of the utility model:

[0017] (1) In the present invention, the installation keel is fixed to the outside of the wall by expansion bolts, the second insulation layer is fixedly installed on the outside of the installation keel, which can provide stable support for the second insulation layer, the heat transfer between the installation keel and the wall is blocked by the insulation pad, and the heat transfer between the installation keel and the expansion bolts is blocked by the insulation piece, which can reduce the heat transfer inside and outside the insulation structure;

[0018] (2) Two insulation layers, a first insulation layer and a second insulation layer, are arranged on the outside of the wall, which can improve the thermal insulation effect, reduce heat loss, and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 for Figure 1 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the implementation mode of the present invention is further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 and 2As shown, the near-zero energy building exterior wall external insulation structure includes an installation keel 5 arranged on the outside of the wall 1, a heat insulation cushion layer 6 is arranged between the installation keel 5 and the wall 1, the installation keel 5 is fixed to the outside of the wall 1 by an expansion bolt 7, the expansion bolt 7 has a screw 71, the inner side of the installation keel 5 is sleeved with a heat insulation member 8, the heat insulation member 8 is sleeved on the outside of the screw 71, and the outer side of the end of the screw 71 is equipped with a nut 74 that abuts against the heat insulation member 8; the outer side of the wall 1 between the installation keels 5 is provided with a first heat insulation layer 3, the outer side of the installation keel 5 is provided with a second heat insulation layer 4, and the outer side of the second heat insulation layer 4 An outer protective layer 9 is arranged on the side; in the present embodiment, the mounting keel 5 is fixed to the outer side of the wall 1 by means of expansion bolts 7, the second thermal insulation layer 3 is fixedly installed on the outer side of the mounting keel 5, which can provide stable support for the second thermal insulation layer 4, and the heat transfer between the mounting keel 5 and the wall 1 is blocked by the thermal insulation pad 6, and the heat transfer between the mounting keel 5 and the expansion bolts 7 is blocked by the thermal insulation piece 8, which can reduce the heat transfer inside and outside the thermal insulation structure; two thermal insulation layers, the first thermal insulation layer 3 and the second thermal insulation layer 4, are arranged on the outer side of the wall 1, which can improve the thermal insulation effect, reduce heat loss, and reduce energy consumption.

[0023] A through hole matching the thermal insulation member 8 is provided on the inner side of the mounting keel 5, and the thermal insulation member 8 has an insertion end 81 matching the through hole, and a support portion 82 which is an integral structure with the wall 1 is provided on the end of the insertion end 81 facing away from the wall 1; the insertion end 81 is embedded in the interior of the through hole, so that the connection between the thermal insulation member 8 and the mounting keel 5 is stable, and the thermal insulation member 8 provides thermal insulation support between the screw 71 and the mounting keel 5 and between the nut 74 and the mounting keel 5, thereby reducing the heat transfer between the mounting keel 5 and the expansion bolt 7.

[0024] A gasket 72 and a spring gasket 73 are mounted on the outside of the screw rod 71 between the nut 74 and the support portion 82. The gasket 72 can reduce the wear on the thermal insulation member 8 when the nut 74 is installed, and the spring gasket 73 can prevent the nut 74 from loosening.

[0025] The insertion end 81 and the support portion 82 are an integral structure of polyurethane material, and the thermal insulation pad 6 is a polyurethane board that matches the shape of the mounting keel 5; the thermal conductivity of rigid polyurethane is very low, for example, when its density is 35~40kg / m³, the thermal conductivity can reach 0.018~0.024W / (m·K), which is one of the lowest values ​​of thermal conductivity among all thermal insulation materials; the polyurethane material has a closed porosity of more than 90% and is a hydrophobic material, so the thermal conductivity will not increase due to moisture absorption; it also has excellent fireproof and flame retardant properties, and can be used at higher temperatures without decomposing or producing harmful gases.

[0026] The installation keel 5 is provided with an installation hole 51 corresponding to the expansion bolt 7 , through which the nut 74 can be conveniently installed on the screw rod 71 .

[0027] A leveling layer 2 is arranged on the outer side of the wall 1 , and the first heat-insulating layer 3 is bonded to the outer side of the leveling layer 2 ; the leveling layer 2 is leveled on the outer side of the wall 1 using mortar.

[0028] The second thermal insulation layer 4 is assembled and fixed to the outer side of the installation keel 5 by means of a self-tapping anchor rod 41 . An anchor plate 42 is provided on one end of the self-tapping anchor rod 41 away from the installation keel 5 . The anchor plate 42 abuts against the outer side of the second thermal insulation layer 4 .

[0029] The outer protective layer 9 comprises a mortar layer 91 arranged outside the second heat insulating layer 4 , a mesh layer 92 is arranged inside the mortar layer 91 , and a coating layer 93 is arranged outside the mortar layer 91 .

[0030] The first heat insulation layer 3 is a graphite-modified cement-based insulation board.

[0031] The second heat insulation layer 4 is a rock wool board.

[0032] The above is a preferred implementation mode of the utility model. Technical personnel in this industry should understand that the implementation mode of the utility model is not limited by the above content, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the utility model should be equivalent replacement methods and are included in the protection scope of the utility model.

Claims

1. A near-zero energy consumption building exterior wall external insulation structure, characterized by: It includes an installation keel arranged on the outside of the wall, a thermal insulation pad is arranged between the installation keel and the wall, the installation keel is fixedly installed on the outside of the wall by an expansion bolt, the expansion bolt has a screw, the inner side of the installation keel is sleeved with a thermal insulation piece, the thermal insulation piece is sleeved on the outside of the screw, and a nut abutting against the thermal insulation piece is assembled on the outside of the end of the screw; a first thermal insulation layer is arranged on the outside of the wall between the installation keels, a second thermal insulation layer is arranged on the outside of the installation keel, and an outer protective layer is arranged on the outside of the second thermal insulation layer.

2. The near-zero energy consumption building exterior wall external insulation structure according to claim 1 is characterized by: A through hole matching the heat insulating member is provided on the inner side of the installation keel, and the heat insulating member has an insertion end matching the through hole, and a support portion integrally formed with the wall is provided on one end of the insertion end facing away from the wall.

3. The near-zero energy consumption building exterior wall external insulation structure according to claim 2 is characterized in that: A washer and a spring washer are sleeved on the outer side of the screw rod between the nut and the supporting part.

4. The near-zero energy consumption building exterior wall external insulation structure according to claim 2 is characterized in that: The insertion end and the support portion are an integrated structure of polyurethane material, and the thermal insulation cushion layer is a polyurethane plate that matches the shape of the installation keel.

5. The near-zero energy consumption building exterior wall external insulation structure according to claim 1 is characterized by: The installation keel is provided with installation holes corresponding to the expansion bolts.

6. The near-zero energy consumption building exterior wall external insulation structure according to claim 1 is characterized by: A leveling layer is arranged on the outer side of the wall, and the first heat insulation layer is bonded to the outer side of the leveling layer.

7. The near-zero energy consumption building exterior wall external insulation structure according to claim 1 is characterized by: The second heat insulation layer is fixed to the outer side of the installation keel by self-tapping anchor rods. An anchor plate is arranged on one end of the self-tapping anchor rod away from the installation keel. The anchor plate abuts against the outer side of the second heat insulation layer.

8. The near-zero energy consumption building exterior wall external insulation structure according to claim 1 is characterized by: The outer protective layer comprises a mortar layer arranged outside the second heat insulating layer, a mesh layer is arranged inside the mortar layer, and a paint layer is arranged outside the mortar layer.

9. The near-zero energy consumption building exterior wall external insulation structure according to claim 1 is characterized by: The first thermal insulation layer is a graphite-modified cement-based thermal insulation board.

10. The near-zero energy consumption building exterior wall external insulation structure according to claim 1 is characterized by: The second heat insulation layer is a rock wool board.

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