CN111910862A - An external wall thermal insulation decoration system without thermal bridge and its installation method - Google Patents

Abstract

The invention provides a thermal-bridge-free external wall thermal insulation decoration system, comprising a buckle, a skeleton, a thermal insulation layer and a decorative board; the skeleton presses one side of the thermal insulation layer on the wall through a thermal insulation connector; The fastener strips fix the decorative panel on the other side of the thermal insulation layer to the frame through fasteners. The heat-insulating connector specifically includes an anchor, an expansion sleeve sheathed on the outside thereof, and a gasket spaced between it and the skeleton, and the expansion sleeve and the gasket are both made of heat-insulating materials. Preferably, the thermal insulation layer is composed of thermal insulation boards, and thermal insulation strips are arranged at the joints of the thermal insulation boards. Waterproof sealants are provided at the splices of the decorative panels, the junctions between the buckle strips and/or the seam between the buckle strips and the decorative panel. Simple structure without thermal bridge, safe and durable. The invention also provides an installation method of an external wall thermal insulation decoration system without a thermal bridge, which has convenient operation, high construction efficiency and less pollution.

Description

An external wall thermal insulation decoration system without thermal bridge and its installation method

technical field

The invention belongs to the technical field of construction, and in particular relates to an external wall thermal insulation decoration system in a building envelope and an installation method thereof.

Background technique

Saving resources, saving energy, and establishing a conservation-minded society is to reduce energy consumption and low-carbon emissions, and the direct energy consumption of buildings accounts for 46%-50% of the energy consumption of the whole society. It is now known that if the wall is not insulated, its energy Losses account for approximately 50% of a building's total energy loss. The thermal insulation of the exterior wall of the building improves the thermal insulation performance of the wall, reduces the conduction loss of indoor heat energy, and increases the thermal stability of the interior. The main method is to add thermal insulation materials to the wall of the building envelope. The thermal insulation layer is formed, and the decorative board is usually added to the thermal insulation layer to take into account the visual and aesthetic requirements of the building. The thermal insulation layer, the decorative board and other related auxiliary materials constitute the external wall thermal insulation decoration system.

Exterior wall insulation and decoration systems have been widely used in the world, especially in Europe, for a long time. my country's thermal insulation materials started relatively late. Although considerable progress has been made, the existing external wall thermal insulation and decoration systems still cannot meet the requirements of the current continuously improving green and energy-saving building standards and the requirements of ecological environmental protection and sustainable social development.

Among them, an important shortcoming of the existing external wall thermal insulation and decoration system is the widespread problem of thermal bridges. The so-called thermal bridge is that some parts have larger heat transfer coefficient than adjacent parts and poor thermal insulation performance. Under the action of indoor and outdoor temperature difference, a relatively dense area of heat flow will be formed, which weakens the thermal insulation effect and increases heat loss. Specifically, the three main forms of the existing external wall thermal insulation and decoration system include external wall thin plastering system, external wall dry hanging and thermal insulation and decoration integrated board. The thin plastering system is to fix the thermal insulation material to the wall by means of anchor bolts, and the thermal insulation layer is connected to the wall through metal anchors, and there is an obvious thermal bridge. When using rock wool, extruded plastic board, polyurethane and other insulation boards that are easy to cut and spliced to form an insulation layer, there are also certain thermal bridges at the splices, and sometimes wall cracks will occur. The external wall dry hanging and the thermal insulation and decoration integrated board all need pendants, and the thermal bridge at the connection is more obvious. Therefore, no matter what form the existing external wall insulation decoration system can't avoid the thermal bridge problem.

The insulation boards used for splicing into the insulation layer mainly include vacuum insulation boards and non-vacuum insulation boards. Among them, the core material and edge of the vacuum insulation board cannot be penetrated, not only cannot be directly penetrated and fixed with anchoring nails, but also cannot be damaged during construction. When the vacuum insulation board is used in the existing external wall insulation decoration system, its manufacture and transportation are likely to cause damage and air leakage. For example, in the thin plastering system, the vacuum insulation board needs to be in contact with plastering tools and mortar during the construction and installation process. It is foreseeable that this will easily cause puncture and air leakage. This problem of the existing external wall thermal insulation and decoration system also limits the application of vacuum thermal insulation panels in external wall thermal insulation, which is not conducive to the further development of external wall thermal insulation technology.

Another problem of the existing external wall thermal insulation and decoration system is that the installation process is cumbersome and not firm enough, and the thermal insulation layer may fall off. Generally, the thermal insulation layer must be initially fixed to the wall first. Although there are other treatments such as anchor bolts in the existing follow-up process, they cannot be well pressed on the outer wall. Over time, it not only affects the thermal insulation effect, but also poses a safety hazard.

In addition, during the construction of the existing external wall thermal insulation and decoration system, due to its own characteristics, the construction efficiency is not high, and the requirements for environmental protection during construction cannot be taken into account. In particular, there are factors such as on-site mixing of mortar in the thin plastering system, and the construction environment is seriously polluted.

It can be seen from the above that it is very necessary to develop a new type of external wall thermal insulation and decoration system and its related installation method. The utility model has a simple structure, can effectively avoid the problem of thermal bridges, has a good thermal insulation effect and can solve the problem of environmental pollution during construction, can be firmly installed on the wall, effectively protect the environment, and is durable and safe. The installation process steps are simple, the construction efficiency is high, and the material damage is less. This also has positive and far-reaching significance for the development and promotion of energy-saving buildings in my country.

SUMMARY OF THE INVENTION

The present invention is designed to solve all or part of the above problems, and the purpose is to provide an external wall thermal insulation and decoration system without thermal bridge, which has a simple structure, controllable cost, avoids the thermal bridge problem, has good thermal insulation effect, is safe and durable, and is beneficial to the environment. protection and flexible application of various thermal insulation materials. In addition, the present invention also provides an installation method of a thermal bridge-free external wall thermal insulation decoration system, which has high installation efficiency, simple and reliable construction, less pollution on the construction site, and less unnecessary damage and waste of thermal insulation materials during construction.

The present invention provides a thermal bridge-free external wall thermal insulation decoration system, comprising a buckle, a skeleton, a thermal insulation layer and a decorative board; the skeleton presses one side of the thermal insulation layer on the wall through a thermal insulation connector; The fastener strips fix the decorative panel on the other side of the thermal insulation layer to the frame through fasteners. The fasteners may be self-tapping screws, AB glue, etc., used to fix the frame and the buckle. The heat-insulating connectors can be selected according to the actual conditions of appropriate models and corresponding quantities. By using the frame to be fixedly connected to the wall through the heat-insulating connector, one side of the heat-insulating layer can be firmly pressed on the wall; Pack. The heat-insulating connector can insulate the wall and the skeleton, and a heat-insulating layer is separated between the fastener for fixing the decorative board and the wall, thereby effectively reducing the thermal bridge effect. The entire exterior wall thermal insulation decoration system avoids thermal bridge points, has a simple structure, is convenient for construction and installation, is firm, and is not easy to fall off.

In a very good embodiment, the thermal insulation layer is formed by splicing thermal insulation boards, and thermal insulation strips are provided at the splices between the thermal insulation boards. The thermal insulation layer has no structural thermal bridging points at the splices of the thermal insulation boards, and the thermal insulation layer has good overall continuity of thermal insulation.

In one specific embodiment, the thermal insulation board is a non-vacuum thermal insulation board; the thermal insulation connector passes through the frame and the thermal insulation board in sequence or passes through the gap between the frame and the thermal insulation board in sequence and then nails into the wall. In this solution, the thermal insulation connector can directly penetrate into the edge of the thermal insulation board or between adjacent edges, that is, the frame can be fixed at the preset position of the thermal insulation layer according to various actual conditions. The installation layout of the skeleton is more flexible.

Preferably, the thermal insulation strip and the thermal insulation board are made of the same thermal insulation material. The use of the same type of insulation material, on the one hand, ensures the insulation continuity of the insulation layer; It is easier to prepare and process, and it is also beneficial to improve the utilization rate of thermal insulation materials and save costs.

In another specific embodiment, the insulation board is a vacuum insulation board; due to the special structure of the vacuum insulation board, the heat insulation connector cannot be directly penetrated through the insulation board for fixing, and the fixing position of the skeleton should be adjacent to the insulation board. between vacuum insulation panels. There is a gap with a preset width between the insulation boards at the fixed position where the skeleton and the wall are connected, and the width of the gap is smaller than the cross-sectional width of the skeleton; the gap is filled with thermal insulation materials, and the The heat-insulating connector passes through the frame and the heat-insulating material in the gap in turn, so as to realize the fixed connection between the frame and the wall and press the heat-insulating layer on the wall, and the gap is filled with The thickness of the thermal insulation material is the same as the thickness of the thermal insulation board after being compressed by the skeleton. In this solution, the thermal insulation board can be a vacuum thermal insulation board. At the fixed position of the skeleton, a gap of a certain width is preset between the thermal insulation boards, and the gap is filled with thermal insulation materials, which effectively solves the problem of vacuum thermal insulation. The problem of the panels not being able to penetrate the installation directly with the insulating connectors and maintaining the thermal continuity of the whole said insulating layer. Preferably, the insulation board is an STP vacuum insulation board. The application of vacuum insulation board can effectively avoid heat transfer caused by air convection, the whole exterior wall insulation decoration system has good insulation effect, and the unit weight of vacuum insulation board is lighter, not easy to fall off after installation, and high safety.

Preferably, the width of the gap is set to 2cm. This width can meet the penetration and fixing requirements of the heat insulating connector, and also takes into account the economical rationality of utilizing heat insulating materials and saves costs.

In another preferred embodiment, the insulating material filled in the gap is a hydrophobic aerogel felt. The hydrophobic aerogel felt is soft and waterproof, and can be easily cut into various preset widths. Its service life is the same as that of buildings, and it is safe and durable.

In a particularly advantageous embodiment, a thermal insulation strip is arranged between the decorative panel and the thermal insulation layer. The arrangement of the thermal insulation strips forms an air space between the decorative board and the thermal insulation layer, and the air space further blocks the heat transfer and achieves a better thermal insulation effect.

Preferably, the thermal insulation strips are parallel to each other, the spacing distance of the thermal insulation strips is set to 300-400 mm, and the width of the thermal insulation strips is set to 5 cm. The thermal insulation strips that are parallel to each other, evenly spaced and have a certain width can function as support ribs, so that the decorative board can be pressed on the thermal insulation layer more evenly.

In another preferred solution, the thermal insulation strip is made of hydrophobic aerogel felt.

In another preferred practice, an adhesive layer is provided on the outer surface of the thermal insulation strip; the thermal insulation strip is bonded to the thermal insulation layer and/or the decorative board through the adhesive layer. When the decorative board is pressed onto the thermal insulation layer, the thermal insulation strip can be bonded to the thermal insulation layer and/or the decorative board due to the adhesive layer provided on the thermal insulation strip. The insulation strip is fixed more firmly and is easy to install.

In a specific embodiment, the thermal insulation connector includes an anchor, an expansion sleeve and a gasket; the expansion sleeve and the gasket are made of thermal insulation materials; The spacer is arranged between the anchor and the frame. This achieves thermal insulation between the anchor and the skeleton. The anchor can be selected from metal anchor bolts, screws or nails of expansion type, expansion type and other types according to the construction site conditions. The thermal insulation connector has good thermal insulation and is easy to install, and the frame, the thermal insulation layer and the wall can be fixedly connected without a thermal bridge without special tools.

In a feasible embodiment, waterproof sealants are provided at the splices of the decorative panels, the junctions between the buckle strips and/or the seam between the buckle strips and the decorative panel. In this embodiment, the thermal-bridge-free exterior wall thermal insulation and decoration system can not only effectively maintain thermal insulation, but also have good waterproof performance, which better meets the needs of practical applications.

In an effective embodiment, the frame is a metal frame, including a horizontal metal frame and a vertical metal frame; the buckle is a metal buckle, including a horizontal metal buckle and a vertical metal buckle. It can better meet the diverse needs of the architectural appearance design on site, and at the same time more firmly press the decorative board, the thermal insulation layer and the wall to each other.

In a feasible specific embodiment, the buckle and/or the frame are made of aluminum alloy material. The price is cheap, and the whole thermal bridge-free exterior wall thermal insulation decoration system is lighter.

The present invention also provides an installation method for an external wall thermal insulation and decoration system without thermal bridges, comprising the following steps: step S1. Preliminarily fixing the thermal insulation layer on the wall; Step S2. It is fixedly connected with the wall and the thermal insulation layer is fastened on the wall; Step S3. Fasten the fastening strip and the skeleton with fasteners, and press the decorative board on the thermal insulation layer. The installation process is simple, the installation is firm, it is not easy to fall off, the construction quality is good, and the efficiency is high. Especially in the whole installation process, there are no steps such as on-site mixing of mortar, which is beneficial to environmental protection and is not easy to cause the thermal insulation material to be damaged, resulting in substandard thermal insulation effect or waste of materials.

Preferably, step S4 is added after the step S3: the splicing of the decorative panel, the junction between the buckle strips and/or the pressure seam between the buckle strip and the decorative plate are marked. Waterproof sealant. This can achieve thermal insulation while enhancing waterproofness, which is conducive to improving the quality of the building.

In a specific embodiment, when the insulation layer is formed by splicing insulation boards, a new step is added between the step S1 and the step S3: sealing the splices between the insulation boards with insulation strips strict. In this scheme, the thermal insulation board and the thermal insulation strip are used to realize the overall continuity of the thermal insulation layer, and there is no structural thermal bridge at the splicing point. The thermal insulation layer can be spliced together with thermal insulation boards of different sizes according to the actual situation, and the flexibility is better.

In another specific embodiment, before pressing the decorative board on the thermal insulation layer, a thermal insulation strip is pre-bonded on the surface of the decorative board facing the thermal insulation layer. During installation, the thermal insulation strip forms an air gap between the decorative board and the thermal insulation layer, which provides better thermal insulation. It is conducive to the optimization of the overall construction quality and further improves the efficiency of on-site construction.

The beneficial effects achieved by the present invention are as follows: (1) According to a thermal insulation and decoration system for external walls without thermal bridges provided by the present invention, the thermal insulation layer can be firmly pressed by the thermal insulation connecting piece in cooperation with the skeleton. On the wall, there is no thermal bridge point at the connection, and it is durable and not easy to fall off; (2) because the thermal insulation strip is provided at the splicing part of the thermal insulation board, the thermal insulation layer is a thermal insulation whole, and the thermal insulation continuity is good, Even if the insulation board is a vacuum insulation board, because a gap is reserved at the fixed position of the skeleton and the gap is filled with heat insulation material, it effectively solves the problem that the vacuum insulation board cannot be directly installed through the heat insulation connector. Therefore, this system is applicable to both vacuum and non-vacuum insulation boards. (3) The buckle strip is fastened with the skeleton to realize the clamping of the outer fold of the decorative board, thereby fixing the decorative board; because the decorative board and the thermal insulation layer are arranged between The thermal insulation strips form an air space between the decorative board and the thermal insulation board for better thermal insulation. The thermal-bridge-free external wall thermal insulation decoration system of the present invention is durable, reliable and durable. The invention also provides an installation method of the thermal bridge-free external wall thermal insulation decoration system, which has the advantages of simple process steps, high installation efficiency, less pollution on the construction site, no damage to thermal insulation materials during the process, and effectively avoids the need for external wall thermal insulation decoration system. Unnecessary rework caused by falling off or substandard thermal insulation effect saves construction costs and improves project quality.

Description of drawings

FIG. 1 is a partial schematic top view of an external wall thermal insulation and decoration system without a thermal bridge in Embodiment 1 of the present invention.

FIG. 2 is a schematic cross-sectional view of the fixing part of the thermal insulation connector of the thermal bridge-free external wall thermal insulation decoration system according to the first embodiment of the present invention.

3 is a schematic cross-sectional view of the fastening part of the buckle of the external wall thermal insulation and decoration system without thermal bridges according to the first embodiment of the present invention.

FIG. 4 is a partial schematic top view of the external wall thermal insulation and decoration system without thermal bridges according to the second embodiment of the present invention.

FIG. 5 is a partial schematic cross-sectional view of the fixing part of the thermal insulation connector of the thermal-bridge-free external wall thermal insulation and decoration system according to the second embodiment of the present invention.

FIG. 6 is a partial schematic cross-sectional view of the fastening part of the buckle of the thermal bridge-free external wall thermal insulation and decoration system according to the second embodiment of the present invention.

FIG. 7 is a schematic flowchart of the installation method of the external wall thermal insulation and decoration system according to the present invention.

The same reference numbers in the figures designate the same or similar parts or parts. It should be understood by those skilled in the art that the shapes of the various components in these drawings are only schematic. In the attached drawings: 1-wall; 2-insulation layer; 21-insulation board; 211-insulation board splicing; X-insulation strip; X0-adhesive layer; 3-decorative board; 4-framework; 41-horizontal metal skeleton; 42-vertical metal skeleton; 43-insulation connector; 431-anchor; 432-expansion sleeve; 433-gasket; 5-buckle; 51-horizontal metal buckle; 52-vertical metal buckle ; 53-fastener; S-sealant coating; P-fixed position; D-fixed gap width; W-frame width.

Detailed ways

In order to make the technical means, creative features, goals and effects realized by the present invention easy to understand, the following embodiments describe a thermal bridge-free exterior wall thermal insulation decoration system and its installation method of the present invention in detail with reference to the accompanying drawings.

Specific embodiment 1, refer to FIG. 1 , FIG. 2 and FIG. 3 . In this embodiment, a thermal bridge-free external wall thermal insulation and decoration system of the present invention includes a thermal insulation layer 2 , a decorative board 3 , a frame 4 and a buckle 5 . A thermal insulation strip X is provided between the two opposite sides of the thermal insulation layer 2 and the decorative board 3 . The thermal insulation strips X provide an air space between the decorative board 3 and the thermal insulation layer 2 to further isolate the heat transfer. The thermal insulation layer 2 is formed by splicing thermal insulation boards 21, and the number and arrangement of the thermal insulation boards 21 can be set according to the actual installation conditions. An insulation strip X is provided at the joint 211 of the insulation board to ensure the overall thermal insulation continuity of the insulation layer 2 and avoid structural thermal bridges. In this embodiment, the insulation board 21 is a non-vacuum insulation board. The thermal insulation board 21 and the thermal insulation strip X are also made of rock wool, and the integral thermal insulation continuity of the entire thermal insulation layer 2 is good. During construction and installation in this embodiment, the thermal insulation boards 21 are aligned close to each other according to the conventional practice of industry standards, and are initially fixed on the wall 1, because the conventional practice is not shown in the drawings. In this embodiment, both the frame 4 and the buckle 5 are made of aluminum alloy material, and may also be other metal materials. A good example is the light weight and low cost of aluminum alloy materials. In this embodiment, the frame 4 is a rectangular aluminum alloy channel steel, and the buckle 5 is a trapezoidal aluminum alloy channel steel. In this embodiment, the frame 4 includes a horizontal metal frame 41 and a vertical metal frame 42 ; the buckle 5 correspondingly includes a horizontal metal buckle 51 and a vertical metal buckle 52 . This is just an effective example according to the needs of building appearance and construction conditions. In practical applications, there may not be a horizontal metal frame 41 or a vertical metal frame 42, and correspondingly, there may not be a horizontal metal buckle 51 or a vertical metal buckle 52. . In this embodiment, the thermal insulation connector 43 is nailed into the wall 1 through the central part of the frame 4 in the width direction and then through the area within the edge of the insulation board 21 , and the frame 4 is fixedly connected with the wall 1 and clamped tightly. Insulation board 21 in it. This is a method of this embodiment. In actual installation, the frame 4 can also be fixed at the gap between the adjacent insulation boards 21. In this embodiment, the frame 4 can be fixed at the preset position of the insulation layer 2 according to specific needs. . The number of the heat-insulating connectors 43 is set according to actual application requirements, and is not limited. In this embodiment, the heat-insulating connector 43 includes an anchor 431, an expansion sleeve 432 and a gasket 433; the expansion sleeve 432 and the spacer 433 are made of heat-insulating material, and are specifically made of nylon material in this embodiment . An expansion sleeve 432 is sleeved on the outer side of the anchor 431, and a gasket 433 is arranged between the anchor 431 and the skeleton 4, so that there is no heat transfer between the thermal insulation connector 43 and the wall 1, the thermal insulation layer 2 and the skeleton 4, and there is no heat transfer. thermal bridge.

In this embodiment, an adhesive layer X0 is provided on the outer surfaces of both sides of the thermal insulation strip X, which is pre-bonded on the side of each decorative board 3 facing the thermal insulation layer 2, and is bonded at the position corresponding to the joint 211 of the thermal insulation board. Thermal insulation strip X; in addition, the thermal insulation strip X is also bonded to the position within the edge of the thermal insulation board 21 and parallel to the edge in the vertical direction or the horizontal direction. This is an example of a better practice in this embodiment. The specific number of thermal insulation strips X may be set according to the actual installation situation, or the thermal insulation strips X may not be provided in the area within the edge of the thermal insulation board 21 according to the actual construction situation. The practice of pre-bonding the thermal insulation strip X on the decorative board 3 is a better situation in this embodiment, and it can also be pre-bonded on the thermal insulation layer 2 . In this embodiment, the distance between the heat preservation strips X parallel to each other is set to 300-400 mm, and the width of the heat preservation strip X is 5 cm. Parallel and evenly spaced thermal insulation strips X with a reasonable width form a structure similar to a support rib, and the decorative plate 3 is pressed more smoothly. In this embodiment, the adhesive layers X0 on the two outer surfaces of the insulation strip X facing away from each other bond the insulation layer 2 and the decorative board 3 respectively, and the insulation strip X, the insulation layer 2 and the decorative board 3 form a fixed connection, and the installation is more firm. . In this embodiment, the adhesive layer X0 is also made of heat insulating material. The outer folded edge of the decorative panel 3 is placed in the frame 4 , the fastener strips 5 and the frame 4 are connected and fastened with fasteners 53 at positions staggered from the thermal insulation connector 43 , and the decorative panel 3 is pressed. The number of the fasteners 53 is set according to the actual situation and is not limited. The fasteners 53 use self-tapping screws in this embodiment, but in practice, AB glue, for example, can also be used to fasten the two. In this embodiment, the sealant coating place S includes the junction of the horizontal metal buckle strip 51 and the vertical metal buckle strip 52 , and the pressure seam of the buckle strip 5 , and waterproof sealant is provided at these positions. In practical application, if there are some edges of the decorative panel 3 without a buckle 5 between them, then the places where these edges are directly spliced to each other are also the places S where the sealant is applied, and the waterproof sealant is also provided.

The main difference between the second embodiment and the first embodiment is only the design of the thermal insulation layer 2 . 4 , 5 and 6 , the thermal insulation board 21 in the second embodiment is a vacuum thermal insulation board, and specifically, an STP vacuum thermal insulation board is used in this embodiment. The thermal insulation board 21 is laid on the wall body 1, and can be temporarily fixed by a conventional simple bonding method. A fixed gap is reserved between the thermal insulation boards 21 at the fixed position P where the frame 4 needs to be installed according to the actual construction situation. In this embodiment, the fixed gap width D is set to 2 cm, which is a preferred exemplary value. In practical applications, the width D of the fixed gap is smaller than the width W of the skeleton; the fixed gap is filled with insulating material, and the thickness of the filled insulating material after being pressed by the skeleton 4 is the same as the thickness of the insulating board 21, and the filled insulating material is made of Preferred hydrophobic aerogel felt. Between the insulation boards 21 in other positions is the insulation board splicing part 211, which is close to each other as in the first embodiment. In this embodiment, the thermal insulation strip X is also made of a preferred hydrophobic aerogel felt, and the hydrophobic aerogel felt can be easily cut into various required preset widths. The widths of the thermal insulation strips X at different positions can be set to different values according to the actual conditions of the construction site, which are not limited in this embodiment. The thermal insulation connector 43 is nailed into the wall 1 through the central part of the frame 4 in the width direction, and then through the hydrophobic aerogel felt in the gap at the fixed position P between the thermal insulation boards 21, so as to realize the connection between the frame 4 and the wall. The body 1 is fixedly connected and presses the insulating layer 2 sandwiched therein.

1 to 6 , as shown in FIG. 7 , in the above-mentioned embodiment, the installation method for implementing the thermal bridge-free external wall thermal insulation decoration system at the construction site is: the thermal insulation layer 2 formed by splicing thermal insulation boards 21 is initially fixed on the wall. on body 1. When the insulation board 2 is a non-vacuum insulation board, as in the case of the first embodiment, all insulation boards 2 can be pressed against each other first. All insulation board splices 211 have basically no gaps and are anchored on the wall 1 by conventional methods; when the insulation board 2 When it is a vacuum insulation board, as in the case of the second embodiment, the insulation boards 2 are pressed against each other at the parts where the skeleton 4 does not need to be installed. To fix the gap width D, the thermal insulation board 2 can be temporarily fixed on the wall 1 by a simple bonding method. After that, the frame 4 is passed through the thermal insulation connector 43 , and the thermal insulation connector 43 is fastened to fix the frame 4 and the wall 1 , and press the thermal insulation layer 2 in the middle on the wall 1 . Bond the thermal insulation strip X on the side of the decorative board 3 facing the thermal insulation layer 2 in advance, then press the decorative board 3 to the thermal insulation layer 2, put the outer folded edge of the decorative board 3 into the frame 4, and attach the buckle strip 5 Facing the frame 4, the two are fastened with fasteners 53, and the decorative board 3 is pressed while the splicing part 211 of the insulation board is sealed by the insulation strip X. Finally, apply waterproof sealant at the sealant coating place to complete the structural sealing and waterproofing. In the above embodiment 1 and embodiment 2, the place S where the sealant is applied includes the junction of the horizontal metal buckle strip 51 and the vertical metal buckle strip 52 and the surrounding area of the decorative board 3 is pressed by the horizontal metal buckle strip 51 and the vertical metal buckle strip 52. This is just an example. In actual construction, according to the specific requirements of building exterior design, there may be only horizontal metal buckle strips 51 or only vertical metal buckle strips 52, and there are parts of the edges around the decorative panel 3 that are directly spliced to each other. It is also the place where the sealant is applied, and the waterproof sealant is also applied to form a structural seal.

It can be understood from the above embodiments that the present invention achieves the desired effects. The above-mentioned embodiments are only used to illustrate the technical idea and characteristics of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement them accordingly, and the present invention cannot be limited only by the present embodiment. patent scope.

Claims (19)

1. The utility model provides a no heat bridge external wall insulation system of decorating which characterized in that: comprises a buckling strip, a framework, a heat-insulating layer and a decorative plate; the framework presses one surface of the heat-insulating layer on the wall body through a heat-insulating connecting piece; the decorative plate on the other side of the heat-insulating layer is fixed on the framework through the fastening piece by the buckling strip.

2. The heat-bridge-free exterior wall thermal insulation decoration system of claim 1, wherein: the heat preservation layer is formed by splicing heat preservation plates, and heat preservation strips are arranged at the splicing positions among the heat preservation plates.

3. The heat-bridge-free exterior wall thermal insulation decoration system of claim 2, wherein: the insulation board is a non-vacuum insulation board; the heat insulation connecting piece penetrates through the framework and the heat insulation board in sequence or penetrates through a gap between the framework and the heat insulation board in sequence and then is nailed into a wall body.

4. The heat-bridge-free exterior wall thermal insulation decoration system of claim 3, wherein: the heat preservation strips and the heat preservation plates are made of the same type of heat preservation materials.

5. The heat-bridge-free exterior wall thermal insulation decoration system of claim 2, wherein: the heat insulation plate is a vacuum heat insulation plate; gaps with preset width are formed between the heat-insulation plates at the connecting positions of the frameworks and the wall body, and the width of each gap is smaller than the width of the cross section of each framework; and heat insulation materials are filled in the gaps, the heat insulation connecting pieces sequentially penetrate through the framework and the heat insulation materials in the gaps, the framework is fixedly connected with the wall, the heat insulation layer is tightly pressed on the wall, and the thickness of the heat insulation materials filled in the gaps is consistent with that of the heat insulation plate after being tightly pressed by the framework.

6. The heat-bridge-free exterior wall thermal insulation decoration system of claim 5, wherein: the width of the gap is set to 2 cm.

7. The heat-bridge-free exterior wall thermal insulation decoration system of claim 5, wherein: the insulation material filled in the gap is hydrophobic aerogel felt.

8. The heat-bridge-free exterior wall thermal insulation decoration system of claim 1, wherein: and a heat insulation strip is arranged between the decorative plate and the heat insulation layer.

9. The heat-bridge-free exterior wall thermal insulation decoration system of claim 8, wherein: the heat preservation strips are parallel to each other; the spacing distance of the heat preservation strips is set to be 300-400mm, and the width of the heat preservation strips is set to be 5 cm.

10. The heat-bridge-free exterior wall thermal insulation decoration system of claim 8, wherein: the heat preservation strip is made of hydrophobic aerogel felt.

11. The heat-bridge-free exterior wall thermal insulation decoration system of claim 8, wherein: the outer surface of the heat preservation strip is provided with an adhesive layer; the heat preservation strip is bonded with the heat preservation layer and/or the decorative plate through the adhesive layer.

12. The heat bridge-free exterior wall insulation decorative system according to any one of claims 1 to 11, wherein: the heat insulation connecting piece comprises an anchoring piece, an expansion sleeve and a gasket; the expansion sleeve and the gasket are made of heat insulation materials; the expansion sleeve is arranged on the outer side of the anchoring piece, and the gasket is arranged between the anchoring piece and the framework.

13. The heat bridge-free exterior wall insulation decorative system according to any one of claims 1 to 11, wherein: the splicing part of the decorative plate, the joint part between the buckling strips and/or the buckling strips and the seam pressing part of the decorative plate are/is provided with waterproof sealant.

14. The heat bridge-free exterior wall insulation decorative system according to any one of claims 1 to 11, wherein: the framework is a metal framework and comprises a horizontal metal framework and a vertical metal framework; the buckling strips are metal buckling strips and comprise horizontal metal buckling strips and vertical metal buckling strips.

15. The heat-bridge-free exterior wall insulation decoration system of claim 14, wherein: the buckling strips and/or the framework are made of aluminum alloy materials.

16. A method for installing a thermal bridge-free external wall insulation decoration system is characterized in that: the method comprises the following steps:

s1, preliminarily fixing a heat-insulating layer on a wall;

s2, a heat insulation connecting piece penetrates through the framework and the heat insulation layer to fixedly connect the framework and the wall body and tightly press the heat insulation layer on the wall body;

and S3, fastening the buckling strips and the framework by using fasteners, and pressing the decorative plate on the heat insulation layer.

17. The installation method of the thermal bridge-free exterior wall insulation decoration system of claim 16, wherein: and adding a step S4 after the step S3, namely, coating waterproof sealant on the splicing part of the decorative plates, the joint part between the buckling strips and/or the pressing seam of the buckling strips and the decorative plates.

18. The installation method of the thermal bridge-free exterior wall insulation decoration system of claim 16, wherein: when the heat insulation layer is formed by splicing heat insulation plates, a step is added between the step S1 and the step S3: the splicing part between the heat insulation plates is sealed by a heat insulation strip.

19. The installation method of the thermal bridge-free exterior wall insulation decoration system of claim 16, wherein: and adhering heat preservation strips on the surface of the decorative plate facing the heat preservation layer in advance before the decorative plate is pressed on the heat preservation layer.

Images