CN217299328U

CN217299328U - External wall insulation structure and building structure

Info

Publication number: CN217299328U
Application number: CN202220987845.4U
Authority: CN
Inventors: 沈卓佼
Original assignee: Shanghai Municipal Housing Design Institute Co ltd
Current assignee: Shanghai Municipal Housing Design Institute Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-08-26
Anticipated expiration: 2032-04-25

Abstract

The utility model provides an outer wall insulation structure and building structure. The outer wall insulation structure includes: the outer wall insulation boards are adjacent to each other, and gaps are formed between the adjacent outer wall insulation boards; a dehumidifying structure having a dehumidifying cavity therein; the dehumidification structure extends to from the surface of the external wall insulation board in the gap, and the moisture-removing cavity is located in the gap. The utility model discloses a hydrofuge structure among the external wall insulation structure can in time get rid of the steam in the external wall insulation board, can effectively prevent the heat preservation effect that steam in the external wall insulation board leads to reduces, prevents the destruction of moisture evaporation to the ornamental material of surface course in the external wall insulation board to and the expend with heat and contract with cold of prevention moisture leads to the external wall insulation board scheduling problem that drops.

Description

External wall insulation structure and building structure

Technical Field

The utility model relates to an outer wall heat preservation technical field especially relates to an outer wall insulation structure and building structure.

Background

The external wall external heat insulation is a construction method for arranging a heat insulation system outside an external wall to ensure that a building achieves heat insulation. Usually, a layer of heat insulation material is fixed on the outer side of the base layer outer wall by using a bonding material, the outer side of the heat insulation material is reinforced by using a glass fiber net and coated with bonding adhesive cement, and the outermost layer is a finishing layer. Expanded polystyrene boards (EPS boards), extruded polystyrene boards (XPS boards), rock wool insulation boards, perlite insulation particles and other materials are commonly used in the market at present.

The heat insulation material is generally a light and loose substance, is porous, fibrous or powdery, and contains a large amount of static air inside. The heat conductivity coefficient of the static air is about 0.022, and the heat-insulating capacity is far higher than that of most heat-insulating materials. Since air is a poor conductor of heat, this confined air serves as a good thermal insulator. However, if the insulation is wet, i.e., moisture penetrates into the insulation, some of the air is replaced by moisture. Water has a thermal conductivity that is more than 20 times greater than that of still air, and ice has a thermal conductivity that is more than 80 times greater than that of still air if the water therein is re-frozen into ice. Therefore, the heat-insulating material subjected to damp has obviously improved heat-conducting property and greatly reduced heat-insulating property, and the higher the moisture content of the material is, the more the heat-insulating property is reduced.

The heat conductivity coefficient of the heat insulation material is increased due to the water vapor in the heat insulation plate, and the heat insulation effect is reduced; the surface decorative material can be damaged due to the evaporation of water after the wall is covered; but also reduce the bonding strength with the basic unit, the expend with heat and contract with cold of moisture also can lead to the heated board to drop. The heat preservation effect is greatly reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides an external wall insulation structure and building structure for solve the above-mentioned problem among the prior art.

The utility model discloses an aspect provides an outer wall insulation structure, include:

the outer wall insulation boards are adjacent to each other, and gaps are formed between the adjacent outer wall insulation boards;

the dehumidifying structure is provided with a dehumidifying cavity; the dehumidification structure extends to from the surface of the external wall insulation board in the gap, and the moisture-removing cavity is located in the gap.

Optionally, the dehumidifying structure comprises:

the first pressing strip extends into the gap from the surface of the external wall insulation board on one side of the gap;

the second pressing strip extends into the gap from the surface of the external wall insulation board on the other side of the gap; the moisture removing cavity is positioned between the second pressing strip and the first pressing strip;

the sealing structure is positioned in the gap and positioned at the outer sides of the first pressing strip, the second pressing strip and the moisture exhausting cavity; and an exhaust hole is formed in the sealing structure and communicated with the moisture exhausting cavity.

Optionally, the first and second beads each comprise a Z-shaped finished bead.

Optionally, the first and second beads each comprise a Z-shaped metal finished bead or a Z-shaped plastic finished bead.

Optionally, the thickness of the first pressing strip and the thickness of the second pressing strip are both 1-5 mm.

Optionally, the sealing structure comprises a silicone weatherable sealant.

Optionally, the diameter of the exhaust hole is 1-5 mm.

Optionally, the vent hole comprises an angled hole.

Optionally, the external wall insulation structure further comprises a joint filling material layer, which is located in the gap, and is located inside the dehumidification structure and between the dehumidification structure and the external wall insulation board.

The utility model discloses a second aspect provides a building structure, include:

an outer wall;

the exterior wall insulation structure as described in the first aspect; the outer wall heat-insulation board is attached to the outer surface of the outer wall; the dehumidification structure extends into the gap from the surface of the outer wall insulation board far away from the outer wall.

As described above, the utility model discloses an outer wall insulation structure and building structure device has following beneficial effect: the utility model discloses a hydrofuge structure among the external wall insulation structure can in time get rid of the steam in the external wall insulation board, can effectively prevent the heat preservation effect that steam in the external wall insulation board leads to reduces, prevents the destruction to the ornamental material of surface course of moisture evaporation in the external wall insulation board to and the expend with heat and contract with cold of prevention moisture leads to the external wall insulation board scheduling problem that drops.

Drawings

Fig. 1 is a cross-sectional view of an exterior wall insulation structure attached to an outer surface of an exterior wall according to an embodiment of the present invention.

Fig. 2 is an enlarged view of the area a in fig. 1.

Fig. 3 is a partial front view of a building structure provided in an embodiment of the present invention.

Description of the element reference numerals:

1. the outer wall comprises an outer wall body 2, bonding mortar 3, an outer wall heat-insulation plate A, a dehumidifying structure 4, a first pressing strip 5, a second pressing strip 6, a gap filling material layer 7, a sealing structure 8, an exhaust hole 9, a non-curing self-adhesive tape 10 and a dehumidifying cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

Referring to fig. 1 and fig. 2, in the present embodiment, an exterior wall insulation structure is provided, including: a plurality of external wall insulation boards 3, wherein gaps (not shown) are formed between adjacent external wall insulation boards 3; the dehumidifying structure A is provided with a dehumidifying cavity 10; dehumidification structure A certainly the surface of external wall insulation board 3 extends to in the gap, just the cavity 10 that dehumidifies is located in the gap.

The utility model discloses a hydrofuge structure among the external wall insulation structure can in time get rid of the steam in the external wall insulation board 3, can effectively prevent the heat preservation effect that steam in the external wall insulation board 3 leads to reduces, prevents the destruction of moisture evaporation to the ornamental material of surface course in the external wall insulation board 3 to and the expend with heat and contract with cold of prevention moisture leads to the external wall insulation board 3 scheduling problem that drops.

Specifically, the plurality of external wall insulation boards 3 can be adhered to the outer surface of the external wall 1 through the adhesive mortar 2.

By way of example, with continued reference to fig. 2, the dehumidification structure a may include: the first pressing strip 4 extends into the gap from the surface of the external wall insulation board 3 on one side of the gap; the second pressing strip 5 extends into the gap from the surface of the external wall insulation board 3 on the other side of the gap; the moisture-removing cavity 10 is positioned between the second pressing strip 5 and the first pressing strip 4 in the gap; the sealing structure 7 is positioned in the gap, and the sealing structure 7 is positioned at the outer sides of the first pressing strip 4, the second pressing strip 5 and the moisture exhausting cavity 10; an exhaust hole 8 is formed in the sealing structure 7, and the exhaust hole 8 is communicated with the moisture exhausting cavity 10.

As an example, the first and

second beads

4, 5 may each comprise a Z-shaped finished bead.

Specifically, in this embodiment, the shapes of the first pressing strip 4 and the second pressing strip 5 are illustrated by using a Z-shape, and more specifically, a bending angle of a bending position in the first pressing strip 4 may be 90 degrees, one end of the second pressing strip 5 located in the gap may be located on one side of the first pressing strip 4 away from the gap opening, and the other end of the second pressing strip 5 extends to the surface of the external wall insulation board 3 on one side of the gap away from the first pressing strip 4. Of course, in other examples, other shapes may be used to achieve the above objectives.

More specifically, the plurality of external wall insulation boards 3 can be arranged in multiple rows and multiple columns at intervals, at this time, the gap is formed between any two adjacent external wall insulation boards 3, and the dehumidification structure a is arranged in the gap between any two adjacent external wall insulation boards 3; namely, the gap and the dehumidifying structure A are arranged between the two adjacent external wall insulation boards 3 and between the two external wall insulation boards 3 which are connected with each other at the left and right.

The first pressing strips 4 and the second pressing strips 5 are arranged in a gap between the adjacent external wall insulation boards 3 in a staggered manner; specifically, for example, the first pressing strip 4 is located at the upper side of the gap, the second pressing strip 5 is located at the lower side of the gap, and the position of the second pressing strip 5 in the gap is deeper than the position of the first pressing strip 4 in the gap. Through first layering 4 with second layering 5 staggered arrangement, and certainly 3 surfaces of external wall insulation board extend to in the gap, can also prevent that outdoor rainwater from getting into hydrofuge cavity 10.

Specifically, the first pressing strip 4, the second pressing strip 5 and the outer wall heat-insulation board 3 can be bonded by a non-curing self-adhesive tape 9.

By way of example, the first and

second beads

4, 5 may each comprise, but are not limited to, a Z-shaped metal finished bead or a Z-shaped plastic finished bead. In other words, in this embodiment, the first pressing strip 4 and the second pressing strip 5 may be made of metal or plastic, and may be mass-produced by manufacturers, and are convenient to install on site, economical, efficient, and high in possibility of implementation on site.

As an example, the thickness of the first pressing strip 4 and the thickness of the second pressing strip 5 are both 1-5 mm.

Specifically, the thickness of the first bead 4 may be 1mm, 2mm, 3mm, or 4mm, and so on, preferably, in this embodiment, the thickness of the first bead 4 is 2 mm; the thickness of the second bead 5 may be 1mm, 2mm, 3mm or 4mm, etc., preferably, in this embodiment, the thickness of the second bead 5 is 2 mm.

Further, the specific dimensions of the first pressing strip 4 and the second pressing strip 5 can be customized according to the size of the gap of the field insulation layer.

As an example, the sealing structure 7 may include a sealant, and particularly, the sealing structure 7 may include a silicone weather-resistant sealant.

As an example, the diameter of the exhaust hole 8 can be 1-5 mm.

Specifically, the straight diameter of the exhaust hole 8 may be 1mm, 2mm, 3mm or 4mm, and the like. Preferably, in the present embodiment, the diameter of the exhaust hole 8 is 3 mm.

As an example, the exhaust hole 8 may be a plurality of exhaust holes, and the plurality of exhaust holes 8 may be arranged at intervals according to actual engineering requirements.

By way of example, the vent hole 8 may include, but is not limited to, an inclined hole. Specifically, the exhaust holes 8 can also be circular holes, and the exhaust holes 8 can be provided with 3% -5% of outer drainage gradient; the exhaust hole 8 can exhaust moisture generated after the insulating layer absorbs water into the atmosphere.

As an example, the external wall insulation structure may further include a joint filling material layer 6, where the joint filling material layer 6 is located in the gap and located inside the dehumidifying structure a and between the dehumidifying structure a and the external wall insulation board 3.

The utility model also provides a building structure, building structure includes: the external wall 1 and the external wall heat insulation structure; the outer wall insulation board 3 is attached to the outer surface of the outer wall 1; the dehumidification structure A extends from the surface of the external wall insulation board 3 far away from the external wall 1 to the gap.

The specific implementation process comprises the following steps: before the outer wall heat-insulation board 3 is installed, the outer wall 1 is polished and cleaned before construction, concrete residues, dust and the like on the outer surface of the outer wall 1 are thoroughly removed, a screw rod hole of the outer wall 1 is blocked, and 5-10 mm of waterproof ointment is coated. Before the construction of the external wall insulation board 3, a board arrangement diagram is drawn according to design requirements, the specification and the number of the special-shaped boards are determined, and a board position diagram is popped up on a base layer by using ink lines. The external wall insulation board 3 is pasted in a point frame method and a strip pasting method. During construction, the external wall heat-insulation board 3 is attached to the outer surface of the external wall 1 through a gluing adhesive or bonding mortar 2, and the area of the gluing adhesive or the bonding mortar 2 is not less than 40% of the area of the external wall heat-insulation board 3. After the adhesive or the bonding mortar 2 is smeared on the external wall insulation board 3, the external wall insulation board 3 is required to be flatly pasted on the outer surface of the external wall 1 to slide and be in place immediately, the external wall insulation board is required to be softly and uniformly extruded during pasting, and a guiding rule with the length of not less than 2m is used for flattening, so that the flatness of the external wall insulation board 3 is ensured. The first pressing strip 4 and the second pressing strip 5 are installed between the horizontal gaps of two adjacent external wall insulation boards 3 according to actual engineering requirements, and the specific sizes of the first pressing strip 4 and the second pressing strip 5 can be customized according to the size of the gaps and construction requirements on site. First layering 4 reaches second layering 5 with bond with non-curing self-adhesive tape 9 between the external wall insulation board 3, first layering 4 reaches second layering 5 is crisscross to be set up, adjacent two form hydrofuge cavity 10 between the gap of external wall insulation board 3, first layering 4 reaches 5 seams of second layering are set up seal structure 7 the interval sets up on the seal structure 7 exhaust hole 8, hydrofuge cavity 10 first layering 4 second layering 5 and exhaust hole 8 intercommunication, moisture in the external wall insulation board 3 is through exhausting hole 8 atmospheric air of going into. And filling a gap between the dehumidifying structure A and the external wall heat-insulating plate 3 with a joint filling material. Fixing the external wall insulation board 3 on the outer surface of the external wall 1 by using special anchor bolt nails, plastering the surface layer of the external wall insulation board 3 by using special plastering mortar and glass fiber alkali-resistant gridding cloth, and finally manufacturing an external facing according to actual construction requirements.

Through above process steps, can accomplish the installation of outer wall insulation structure can effectively prevent the heat preservation effect that steam in the outer wall insulation board 3 leads to reduces, and the expend with heat and contract with cold of prevention moisture leads to outer wall insulation board 3 drops, prolongs outer wall insulation board 3's life, simple to operate simultaneously, and economy is high-efficient, and the scene can be implemented the possibility height.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An exterior wall insulation structure, comprising:

a gap is formed between every two adjacent external wall insulation boards;

2. The exterior wall insulation structure of claim 1, wherein: the dehumidifying structure includes:

the second pressing strip extends into the gap from the surface of the external wall insulation board on the other side of the gap; the moisture-discharging cavity is positioned between the second pressing strip and the first pressing strip;

3. The exterior wall insulation structure of claim 2, wherein: the first pressing strip and the second pressing strip comprise Z-shaped finished product pressing strips.

4. The exterior wall insulation structure of claim 3, wherein: the first pressing strip and the second pressing strip comprise Z-shaped metal finished product pressing strips or Z-shaped plastic finished product pressing strips.

5. The exterior wall insulation structure of claim 2, wherein: the thickness of the first pressing strip and the thickness of the second pressing strip are both 1-5 mm.

6. The exterior wall insulation structure of claim 2, wherein: the sealing structure comprises a silicone weather-resistant sealant.

7. The exterior wall insulation structure of claim 2, wherein: the diameter of the exhaust hole is 1-5 mm.

8. The exterior wall insulation structure of claim 2, wherein: the exhaust hole includes an inclined hole.

9. The exterior wall insulation structure according to any one of claims 2 to 8, wherein: the external wall heat insulation structure further comprises a joint filling material layer which is positioned in the gap and positioned on the inner side of the dehumidification structure and between the dehumidification structure and the external wall heat insulation plate.

10. A building structure, comprising:

an outer wall;

the exterior wall insulation structure of any one of claims 1 to 9; the outer wall heat-insulation board is attached to the outer surface of the outer wall; the dehumidification structure extends into the gap from the surface of the outer wall insulation board far away from the outer wall.