CN114837314A - External wall heat insulation structure and external wall heat insulation construction method - Google Patents

Abstract

The invention relates to an external wall insulation structure and an external wall insulation construction method, the external wall insulation structure comprises a connecting piece, a decorative board anchor, a decorative board and an insulation board, the connecting piece is suitable for being fixed on a base wall, the connecting piece is provided with two connecting surfaces, the two connecting surfaces are respectively provided with an anchoring long hole and an internal thread through hole, the anchoring long hole is used for being connected with the base wall, the decorative board anchor is provided with a connecting long hole, the connecting long hole and the internal thread through hole are suitable for being fastened through a hexagon flange bolt, the decorative board is fixed on one side, away from the connecting piece, of the decorative board anchor, the insulation board is arranged between the base wall and the decorative board, the insulation board is suitable for being connected with the base wall through the insulation board anchor, and a gap is reserved between one side, away from the base wall, of the insulation board and the decorative board. Have the clearance between heated board and the decorative board, the crack appears in the board seam department of decorative board, the scheduling problem leaks, and water can flow downwards along the decorative board, can not enter into the heated board and influence the thermal insulation performance.

Description

External wall thermal insulation structure and external wall thermal insulation construction method

technical field

The invention relates to the technical field of external wall thermal insulation, in particular to an external wall thermal insulation structure and an external wall thermal insulation construction method.

Background technique

At present, in the thermal insulation renovation of the external walls of old residential areas, most of them copy the external thermal insulation method of thin plastered external walls combined with bonding and anchoring of new buildings, which has certain requirements on the "health degree" of the base wall. Most of the old communities are brick-concrete structures with sintered solid brick masonry. A large number of old buildings have been used for more than 20 years, and even some have been used for more than 30 years. Because the walls have been exposed to wind and sun for a long time, rain, freezing and thawing, etc. , the wall will appear hollow, cracking, peeling, base layer powder, salt precipitation damage and other problems. Such a base-level wall has problems such as low bonding strength, easy to fall off later, and insufficient anchoring force of plastic anchor bolts, and there are certain safety hazards.

In addition, for the thin plastering method of bonding and anchoring, most of the procedures require on-site wet construction. Multiple complex construction techniques and the maintenance interval during the period will lead to a long overall construction period. The renovation is carried out in a living state. The impact of life is very large, bringing many changes. During the construction period, pollution problems such as material stacking, construction dust, muddy water, and construction waste are prominent, especially in old residential areas where space is tight, and residents have repeatedly complained.

SUMMARY OF THE INVENTION

The invention provides an external wall thermal insulation structure, which is used to solve the technical problems of low bonding strength and insufficient safety during the thermal insulation renovation of the external wall of an old residential area in the prior art, realize the firm fixing of the thermal insulation board and the decorative board, and improve the construction convenience and security.

The invention also provides an external wall thermal insulation construction method.

The present invention provides an external wall thermal insulation structure, comprising:

A connecting piece, suitable for being fixed to the base wall, the connecting piece has two connecting surfaces, and the two connecting surfaces are respectively provided with an anchoring slot and an inner wire through hole, and the anchoring slot is used to connect the base wall ;

The anchoring piece of the decorative board is provided with a connecting long hole, and the connecting long hole and the inner wire through hole are suitable for being fastened by hexagonal flange bolts;

a decorative board, fixed on the side of the decorative board anchor member away from the connecting member;

A thermal insulation board is arranged between the base wall and the decorative board, the thermal insulation board is suitable for connecting with the base wall through thermal insulation board anchors, and the thermal insulation board is away from the side of the base wall There is a gap with the decorative board.

According to an external wall thermal insulation structure provided by the present invention, the connecting piece is arranged in an "L" shape, the connecting piece comprises an integrally formed anchor portion and a connecting portion, and the anchoring slot is arranged in the anchor slot, The anchoring long hole is fixed with the base wall through a metal expansion anchor bolt.

According to an external wall thermal insulation structure provided by the present invention, the inner wire through hole is provided in the connecting portion, the decorative board anchor member and the connecting portion are connected by the hexagonal flange bolts, and the connection A heat insulating gasket is arranged between the part and the anchoring piece of the decorative board.

According to an external wall thermal insulation structure provided by the present invention, a side of the decorative board anchoring member away from the thermal insulation gasket is provided with a sawtooth portion, and the sawtooth portion is in conflict with the hexagonal flange bolt, and is used for for non-slip.

According to an external wall thermal insulation structure provided by the present invention, a first plywood and a second plywood are arranged at intervals on the side of the decorative board anchoring member away from the connecting member in sequence, and the first plywood and the second plywood are arranged at intervals. A card slot is formed therebetween, and a connecting groove is provided on the side of the decorative board that is connected with the decorative board anchor member, and the connecting groove separates the side part of the decorative board into a clip part and an outer decoration part.

According to an external wall thermal insulation structure provided by the present invention, the clipping portion is suitable for clipping in the clipping slot, the second splint is suitable for clipping in the connecting slot, and the exterior decoration portion is located in the clipping slot. A side of the second splint away from the first splint.

According to an external wall thermal insulation structure provided by the present invention, the external decoration parts of every two adjacent decorative panels are connected by a sealant.

According to an external wall thermal insulation structure provided by the present invention, a filling layer or a heat insulating pad is filled in the connection gap between the clip slot and the clip part.

According to an external wall thermal insulation structure provided by the present invention, the decorative board is made of calcium silicate board, and is a calcium silicate board with a decorative surface, the thickness of the decorative board is 15mm, and the thickness of the decorative board is 15 mm. The maximum length is 2400mm, and the width of the decorative board is 200-600mm.

The present invention also provides an external wall thermal insulation construction method, comprising the following steps:

Clean the outer wall of the base wall;

Use metal expansion anchors to fix the connector on the outer wall of the base wall, and use hexagonal flange bolts to fix the decorative board anchor to the connector to form an anchor assembly;

Use insulation board anchors to fix the insulation board to the outer wall of the base wall;

Dry hanging the decorative board on the side of the anchoring assembly away from the base wall, and leave a gap of 10-30 mm between the decorative board and the thermal insulation board.

In the external wall thermal insulation structure provided by the embodiment of the present invention, the connecting piece is fixed to the base wall by anchoring the long hole, and then the decorative board is connected with the anchor piece of the decorative board, so as to realize the fixing of the position of the decorative board. Between the decorative board and the base wall, and use the insulation board anchors to fix the insulation board to the base wall, so that the insulation board can be fully fixed, and the insulation effect can be achieved at the same time. The insulation board and the decorative board will not be in direct contact. Even if there are cracks or water leakage at the seams of the decorative board, the water will only flow down the decorative board and will not enter the insulation board to affect the insulation performance. Safe.

The external wall thermal insulation construction method provided by the embodiment of the present invention adopts dry operation, does not need mortar paste, and directly fixes the thermal insulation board to the external wall surface of the base wall by means of anchoring the thermal insulation board anchor, and the decorative board is also directly dry-hanging on the external wall. The anchoring component not only makes the fixing of the thermal insulation board and the decorative board very reliable, but also makes the construction more convenient and quicker, shortens the construction period, and has higher construction efficiency, and the construction process is safer and more reliable.

Description of drawings

In order to illustrate the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are the For some embodiments of the invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a cross-sectional view of an external wall thermal insulation structure provided by the present invention;

Fig. 2 is the partial enlarged view of A place in Fig. 1;

FIG. 3 is a partial three-dimensional structural schematic diagram of the external wall thermal insulation structure provided by the present invention.

Reference number:

1. Base wall; 2. Connecting parts; 3. Decorative board anchors; 4. Decorative board; 5. Thermal insulation gasket; 6. Serrated part; 7. The first plywood; Card slot; 10. Connection slot; 11. Clip-on part; 12. Exterior part; 13. Sealant; 15. Filling layer; 16. Hexagon flange bolt; 17. Insulation board; 18. Connecting slot; 19. Anchoring long hole; 20, inner wire through hole; 21, metal expansion anchor bolt.

Detailed ways

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing this Inventive embodiments and simplified descriptions are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, Or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention in specific situations.

In the embodiments of the present invention, unless otherwise expressly specified and limited, the first feature "above" or "under" the second feature may be in direct contact with the first and second features, or the first and second features pass through the middle indirect contact with the media. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structures, materials, or features are included in at least one example or example of embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

The external wall thermal insulation structure of the present invention will be described below with reference to FIGS. 1 to 3 , which mainly includes a connector 2, a decorative board anchor 3, a decorative board 4 and a thermal insulation board 17. The connector 2 is suitable for being fixed on the base wall 1, and the connection Part 2 has two connecting surfaces, the two connecting surfaces are respectively provided with long anchor holes 19 and through holes 20 for inner wire. The connecting long hole 18 and the inner wire through hole 20 are suitable for being fastened by the hexagonal flange bolts 16, the decorative board 4 is fixed on the side of the decorative board anchor 3 away from the connecting piece 2, and the thermal insulation board 17 is arranged on the base wall 1 Between the thermal insulation board 17 and the decorative board 4 , the thermal insulation board 17 is adapted to be connected to the base wall 1 through the thermal insulation board anchors 22 .

In this embodiment, the connecting member 2 is fixed to the base wall 1 through the anchoring long holes 19, and then the decorative board 4 is connected with the anchoring member 3 of the decorative board, so as to realize the fixation of the position of the decorative board 4. It is arranged between the decorative board 4 and the base wall 1, and the insulation board 17 is fixed to the base wall 1 by the insulation board anchor 22, so that the insulation board 17 can be fully fixed and the insulation effect can be achieved at the same time. There is a gap between the decorative boards 4, so that the thermal insulation board 17 and the decorative board 4 will not be in direct contact. Even if cracks, water leakage and other problems occur at the board seam of the decorative board 4, the water will only flow down along the decorative board 4. It will not enter into the thermal insulation board 17 to affect thermal insulation performance, and at the same time, it is more secure.

In this embodiment, the thermal insulation board 17 is a rock wool thermal insulation board.

In this embodiment, the connecting piece 2 is set in an “L” shape, and the connecting piece 2 includes an integrally formed anchoring part and a connecting part, the anchoring slot 19 is arranged in the anchoring part, and the anchoring slot 19 is connected to the base layer through the metal expansion anchor bolt 21 . Wall 1 is fixed. The metal expansion anchor bolts 21 are used for fixing, so that the tensile bearing capacity of the connector 2 can be significantly increased, and the safety is higher. Only 6-10 connectors per square meter are required, and the requirements can be met without wet-mixed mortar paste. Moreover, the use of metal expansion anchor bolts 21 can make the thermal insulation board 17 and the decorative board 4 have no design of horizontal and vertical keels, which saves the consumption of keels, and is cheaper than the metal keel curtain wall system.

The integrally formed anchoring part and the connecting part can make the connecting piece 2 have better structural strength.

In this embodiment, the inner wire through hole 20 is provided in the connecting portion, the trim board anchor 3 and the connecting portion are connected by the hexagonal flange bolts 16 , and a trim board anchor 3 is provided between the connecting portion and the trim anchor 3 . There are thermal insulation gaskets 5. On the one hand, the heat insulating gasket 5 can achieve the effect of heat insulation, and on the other hand, it can avoid the direct contact between the connecting part and the decorative board anchor 3, avoid bimetallic corrosion between the connecting part and the decorative board anchor 3, and improve the safety of the system. sex.

It can be understood that the heat insulating gasket 5 is provided with a through hole, and when the decorative board clipping anchor 3, the thermal insulation gasket 5 and the connecting part are connected to each other, the connecting long holes 18 and 18 on the decorative board clipping anchor 3, The through holes on the heat insulating gasket 5 and the inner wire through holes 20 on the connecting portion are aligned with each other, and then hexagonal flange bolts 16 are used to pass through them in order to achieve mutual fixation. The inner thread through hole 20 has a built-in internal thread, and the hexagonal flange bolts 16 are inserted into the connecting long hole 18, the through hole and the inner thread through hole 20 in sequence, so as to realize the anchoring piece 3 of the decorative board, the heat insulating gasket 5 and the connecting piece. 2 are fixed to each other.

In this embodiment, a side of the decorative board anchor 3 away from the heat insulating gasket 5 is provided with a serrated portion 6, and the serrated portion 6 is in conflict with the hexagonal flange bolt 16 for anti-slip. After the hexagonal flange bolts 16 press the serrated part 6, the serrated part 6 and the heat insulating gasket are slightly deformed, so that the pressing force and frictional force between the above components are maintained for a long time, and the anchor part 3, the connecting part 2, the Sliding occurs at each interface between the hexagonal flange bolts 16 and the thermal insulation gasket 5 .

According to the external wall thermal insulation structure provided by the present invention, the side of the decorative board anchoring member 3 away from the connecting member 2 is provided with a first plywood 7 and a second plywood 8 in sequence, and a clip is formed between the first plywood 7 and the second plywood 8 Slot 9, the side of the decorative board 4 connected with the decorative board anchor 3 is provided with a connecting groove 10, and the connecting groove 10 separates the side part of the decorative board 4 into a clip part 11 and an outer decoration part 12, wherein the clip part 11 is suitable for being clamped in the card slot 9 , the second clamping plate 8 is suitable for clamping in the connecting groove 10 , and the outer trim portion 12 is located on the side of the second clamping plate 8 away from the first clamping plate 7 . The mutual clamping of the groove design can make the connection between the decorative board anchor 3 and the decorative board 4 more reliable, and facilitate the positioning of the outer decorative surface during installation.

The decorative board clipping anchors 3 are of a through-length structure or a plurality of decorative board clipping anchors 3 are arranged at intervals along the length direction of the base wall 1 .

As shown in FIG. 2 and FIG. 3 , the side of the decorative board anchoring member 3 away from the connecting member 2 is formed into an approximately “dry” shape structure by the first clamping plate 7 and the second clamping plate 8 for clamping the decorative board. 4 of the clip portion 11. It can be understood that, both ends of the decorative board anchor member 3 away from the connecting member 2 are extended with a first clamp plate 7 and a second clamp plate 8, and the first clamp plate 7 and the second clamp plate 8 can be connected with the decorative board anchor member. 3 are perpendicular to each other. In order to ensure good structural stability of the decorative board anchor 3 , the first clamp plate 7 , the second clamp 8 and the decorative board anchor 3 are integrally formed.

In this embodiment, the outer decoration parts 12 of every two adjacent decorative boards 4 are connected by a sealant 13 to realize the mutual connection between the decorative boards 4. Specifically, a silicone weather-resistant sealant can be used to strengthen it. The connection of two adjacent exterior trim parts 12 .

In this embodiment, a filling layer 15 is filled in the connection gap between the card slot 9 and the clip portion 11 . The filling layer 15 is used to fill the connection seam between the card slot 9 and the clip part 11 , so that the connection between the card slot 9 and the clip part 11 is more reliable. The filling layer 15 may be a foam strip.

In this embodiment, the decorative board 4 is made of a calcium silicate board with a class A R5 standard, and is a calcium silicate board with a decorative surface, the thickness of the decorative board 4 is 15mm, and the maximum length of the decorative board 4 is 2400mm, the width of the decorative plate 4 is 200-600mm. The decorative panel 4 can be directly painted after prefabrication, and can be directly installed on the construction site, so there is no need to paint the decorative panel 4 on site, shorten the site construction period, reduce spray pollution, and improve the uniformity and stability of the facade decoration effect. sex.

Of course, the decorative plate 4 can also be made of aluminum plate, ceramic plate and other plates.

The present invention also provides an external wall thermal insulation construction method, comprising the following steps:

Clean the outer wall of the base wall 1, mainly to simply clean the hollow and sticky parts on the outer wall of the base wall 1;

Use metal expansion anchors 21 to fix the connector 2 on the outer wall of the base wall 1, and use the hexagonal flange bolts 16 to fix the decorative board anchor 3 to the connector 2 to form an anchor assembly, so as to realize the installation of the anchor assembly and levelling;

The thermal insulation board 17 is fixed to the outer wall surface of the base wall 1 by using the thermal insulation board anchors 22, so as to complete the installation of the thermal insulation board 17;

Dry hanging the decorative board 4 on the side of the anchoring assembly away from the base wall 1 to form a decorative surface, and leave a gap of 10-30 mm between the decorative board 4 and the thermal insulation board 17 .

The above method is especially suitable for the construction of dry operation of sintered solid brick masonry structure. It adopts dry operation without mortar paste, and directly fixes the insulation board 17 to the base wall 1 through the direct anchoring method of the insulation board anchor 22. On the outer wall, the decorative panel 4 is also directly dry-hanging on the anchoring components, which not only makes the fixing of the thermal insulation panel 17 and the decorative panel 4 very reliable, but also makes the construction more convenient and quicker, shortens the construction period, increases the construction efficiency, and makes the construction process safer and more reliable. .

In this embodiment, the thermal insulation board 17 is made of rock wool, and the rock wool is fastened to the outer wall surface of the base wall body 1 by means of fastening. On the one hand, the construction is simple, and no mortar is needed, on the other hand, the rock wool is close to the base layer. Wall 1, better thermal insulation effect. There is a 10-30mm cavity between the outer surface of the rock wool and the decorative board 4, and there is no direct contact between the two. Even if there are cracks or water leakage at the board seam of the decorative board 4, the water will flow down along the decorative board 4. , Rock wool will not have the problem of decreased thermal insulation performance due to water absorption.

Because the metal expansion anchor bolts 21 are used to fix the anchoring components on the outer wall surface of the base wall 1, compared with using the thermal insulation board anchors 22 to fix the anchoring components, it has a higher tensile bearing capacity and uses fewer anchoring points, namely Safety requirements can be met. For the aged solid brick masonry walls in old residential areas, it can significantly reduce the number of drilling holes on the wall and the spacing of drilling holes, and reduce the impact of large-area drilling on the structural force. , powdered old residential buildings. Avoid situations where the thin plastering system does not stick and the anchors are not anchored.

In this embodiment, the decorative board 4 is made of a calcium silicate board with a class A R5 standard, and is a calcium silicate board with a decorative surface, the thickness of the decorative board 4 is 15mm, and the maximum length of the decorative board 4 is 2400mm, the width of the decorative plate 4 is 200-600mm. The decorative panel 4 can be directly painted after prefabrication, and can be installed directly on the construction site, so there is no need to carry out the construction of the decorative panel 4 on site, shorten the site construction period, reduce spray pollution, and improve the uniformity and stability of the façade decoration effect. . At the same time, compared with the traditional thermal insulation and decoration integrated board, the decorative board 4 is produced in the factory according to the layout drawing, which avoids the waste of cutting on site, saves materials, and makes on-site construction safer and more environmentally friendly.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An exterior wall insulation structure, comprising:

the connecting piece (2) is suitable for being fixed on the base layer wall body (1), the connecting piece (2) is provided with two connecting surfaces, the two connecting surfaces are respectively provided with an anchoring long hole (19) and an inner thread through hole (20), and the anchoring long hole (19) is used for being connected with the base layer wall body (1);

the decorative board card anchor piece (3) is provided with a connecting long hole (18), and the connecting long hole (18) and the internal thread through hole (20) are suitable for being fastened through a hexagon flange bolt (16);

the decorative plate (4) is fixed on one side, away from the connecting piece (2), of the decorative plate card anchor piece (3);

heated board (17), set up in basic unit's wall body (1) with between decorative board (4), heated board (17) be suitable for through heated board anchor assembly (22) with basic unit's wall body (1) links to each other, heated board (17) are kept away from one side of basic unit's wall body (1) with leave the clearance between decorative board (4).

2. The exterior wall insulation structure according to claim 1, wherein the connecting piece (2) is arranged in an L shape, the connecting piece (2) comprises an anchoring part and a connecting part which are integrally formed, the anchoring long hole (19) is arranged on the anchoring part, and the anchoring long hole (19) is fixed with the base wall (1) through a metal expansion anchor bolt (21).

3. The exterior wall insulation structure according to claim 2, wherein the female screw through hole (20) is provided in the connecting portion, the decorative board anchor (3) is connected to the connecting portion by the hexagon flange bolt (16), and a heat insulating spacer (5) is provided between the connecting portion and the decorative board anchor (3).

4. The exterior wall insulation structure of claim 3, wherein a serration (6) is arranged on one side of the decorative board anchor (3) far away from the heat insulation gasket (5), and the serration (6) is abutted against the hexagon flange bolt (16) for skid resistance.

5. The exterior wall insulation structure of any one of claims 1 to 4, wherein a first clamping plate (7) and a second clamping plate (8) are sequentially arranged at intervals on one side of the decorative board anchor (3) far away from the connecting piece (2), a clamping groove (9) is formed between the first clamping plate (7) and the second clamping plate (8), a connecting groove (10) is arranged on one side of the decorative board (4) connected with the decorative board anchor (3), and the connecting groove (10) separates the side part of the decorative board (4) into a clamping part (11) and an outer decoration part (12).

6. The exterior wall insulation structure according to claim 5, wherein the clamping portion (11) is adapted to be clamped in the clamping groove (9), the second clamping plate (8) is adapted to be clamped in the connecting groove (10), and the outer decoration portion (12) is located on one side of the second clamping plate (8) far away from the first clamping plate (7).

7. The exterior wall insulation structure according to claim 5, wherein the exterior decoration parts (12) of every two adjacent decorative boards (4) are connected through a sealant (13).

8. The exterior wall insulation structure according to claim 5, wherein a filling layer (15) is filled in a connecting gap between the clamping groove (9) and the clamping portion (11).

9. The exterior wall insulation structure according to any one of claims 1 to 4, wherein the decorative plate (4) is made of calcium silicate plate and is a calcium silicate plate with a decorative surface, the thickness of the decorative plate (4) is 15mm, the maximum length of the decorative plate (4) is 2400mm, and the width of the decorative plate (4) is 200-600 mm.

10. The external wall heat insulation construction method is characterized by comprising the following steps:

cleaning the outer wall surface of the base layer wall body (1);

fixing the connecting piece (2) on the outer wall surface of the base layer wall body (1) by using a metal expansion anchor bolt (21), and fixing the decorative board card anchor piece (3) on the connecting piece (2) by using a hexagon flange bolt (16) to form an anchoring assembly;

fixing the heat insulation plate (17) on the outer wall surface of the base layer wall body (1) by utilizing a heat insulation plate anchoring part (22);

and (3) hanging the decorative plate (4) on one side of the anchoring component far away from the base layer wall body (1) in a dry mode, and enabling a gap of 10-30mm to be reserved between the decorative plate (4) and the heat insulation plate (17).

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