CN201193757Y - An embedded stone-plastic composite board for hollow heat-insulating exterior walls and external heat-insulation - Google Patents

Abstract

The utility model discloses an embedded buckle-type hollow heat-insulating outer wall and an external heat-insulating stone-plastic composite board. It is characterized in that air is used as heat insulation layer, and its structure is that the stone veneer and the square frame mesh plastic bottom plate are combined with internal expansion bolts and adhesives. The frame is embedded with multiple expansion bolts and multiple transparent tapered square holes; the middle of the frame is equipped with an air insulation compartment, the bottom of the insulation compartment is equipped with a damping composite board and EPS insulation board, and the bottom of the EPS insulation board is set There is a layer of steel plate. The two sides of the frame are provided with elastic buckles composed of mortise and tenon. The stone panel is made of natural stone, the adhesive is epoxy resin, the plastic bottom plate is thermoplastic engineering plastics, and the hollow heat insulation chamber is composed of a damping composite board and a plastic bottom plate. The composite board is light in weight, high in strength, heat preservation, heat insulation, high pressure resistance, impact resistance, safe and reliable concave-convex elastic embedding, convenient assembly and disassembly, fast construction, no need for concrete mortar paste, stable and firm installation, and can be used repeatedly.

Description

An embedded stone-plastic composite board for hollow heat-insulating exterior walls and external heat-insulation

technical field

The utility model relates to an external thermal insulation composite board for an external wall, in particular to an embedded buckle type hollow thermal insulation stone-plastic composite board for an external thermal insulation external wall.

Background technique

In recent years, our country has repeatedly pointed out: vigorously develop energy-saving and land-saving housing, comprehensively promote and popularize energy-saving technologies, and build a resource-saving and environment-friendly society.

The "Eleventh Five-Year Plan" proposes to reduce energy consumption by 20% while determining the average annual growth rate of GDP of 7.5%. Based on this calculation, during the "Eleventh Five-Year Plan" period, the country should save 240 million tons of standard coal, of which building energy saving should reach 100 million tons of standard coal. According to statistics, at present, nearly 2 billion m ² of new buildings are built every year in the country, and more than 80% of them are buildings with high energy consumption. There are 40 billion m ² of existing buildings, more than 95% of which are high energy-consuming buildings. At present, building energy saving in developed countries has entered the third stage, and the energy saving rate has increased from 25% to 30% at the beginning to 60% to 70% now. However, the energy consumption per unit building area in my country is three times that of developed countries, or even higher. With the improvement of people's living standards, the proportion of my country's building energy consumption in the country's total energy consumption has risen from 10% in 1978 to more than 30% now. It consumes a lot of energy, so the work of building energy conservation should be strengthened without delay. In order to achieve the building energy-saving goal during the "Eleventh Five-Year Plan" period, the National Development and Reform Commission and the Ministry of Construction have issued many regulations on building energy-saving projects, and proposed measures such as the strict implementation of 50% energy-saving design standards for new residential buildings.

At present, the external wall insulation technology (or external wall insulation system) used in the building envelope structure on the market basically adopts:

1. Self-insulating material wall system;

2. Expanded polystyrene board thin plaster exterior wall external insulation system;

3. Rubber powder polystyrene particle insulation slurry external wall insulation system;

4. EPS board cast-in-place concrete external wall external insulation system;

5. EPS steel wire grid cast-in-place concrete external wall external insulation system;

6. Mechanically fixed EPS steel wire mesh frame board external wall external insulation system;

7. On-site spraying of hard foam polyurethane external wall external insulation system;

8. Rock wool external wall insulation system;

9. Rubber powder polystyrene particles paste polystyrene board external wall external insulation system;

10. Extruded polystyrene board thin plaster exterior wall insulation system;

11. SIS chain armor external wall hanging panel insulation system;

12. GKP prefabricated keel sheet external wall external insulation system;

13. EVE lightweight thermal insulation curtain wall panels;

Using the above external wall thermal insulation technical solutions, compared with the thermal insulation of the building enclosure, the above external wall thermal insulation systems have the following advantages:

1. Small thermal conductivity, thermal insulation;

2. Protect the main structure and prolong the life of the building;

3. Basically eliminate the influence of "thermal bridge";

4. Improve the dampness of the wall;

5. It is beneficial to keep the room temperature stable;

6. It is conducive to improving the quality of indoor thermal environment;

7. It is beneficial to improve the waterproof and airtightness of the wall;

8. Facilitate energy-saving renovation of old buildings;

9. It can reduce the amount of insulation materials;

10. Increase the usable area of the house;

11. The scope of application is wide;

But there are still many shortcomings and hidden dangers in installation and structure:

1. The requirements for insulation system materials are more stringent;

2. The weather resistance and durability of the insulation system are poor, especially the rigidity and tensile strength are low;

3. The matching of materials is difficult, and the ability of crack resistance, fire prevention, waterproof, breathability, earthquake resistance and wind pressure resistance is poor;

4. The technical level of the construction personnel is uneven, the construction is relatively difficult, it is not easy to install, and the efficiency is low;

5. The phenomenon of "thermal bridge" has not been completely eliminated, and air convection is easily formed inside, and frost is easy to form;

6. Different temperature differences on both sides of the inner and outer wall insulation shorten the life of the three-dimensional structure of the outer wall, and the cracks on the wall are not easy to control;

7. The thermal conductivity is unstable, and most technical solutions cannot meet the requirement of 50% energy saving, and the tensile strength is very discrete;

8. It is easy to crack, the waterproof performance is poor, and the main materials do not match. After several years, if interlayer damage or peeling occurs, the entire system will fail, which will cause difficult repair problems.

9. Because of the low strength and tensile strength of the system, sticky bricks have potential safety hazards. At the same time, the glass fiber used as the skeleton in the insulation layer is easily corroded by the alkali in the cement slurry, resulting in fracture strain and low safety factor.

We have analyzed and compared various external insulation systems for exterior walls on the market. Although each has its own advantages, each scheme has great shortcomings and hidden dangers. As the external wall insulation composite material system of the main enclosure of the building, it must meet the following conditions:

1. Light weight and high strength;

1. Acid and alkali resistance and chemical corrosion resistance;

2. Good fatigue resistance;

3. Good shock absorption performance;

4. Good heat resistance and heat insulation;

5. Good impact resistance;

6. High tensile strength and rigidity;

7. Fire and flame retardant, moisture-proof, low water absorption;

8. Easy construction and installation, easy to obtain materials, low price, etc.

Contents of the invention

The utility model aims to provide a fast-installed hollow heat-insulating stone-plastic composite board which does not need to use concrete mortar and electric welding.

The utility model is achieved through the following schemes:

The square block-shaped stone veneer is combined with the frame mesh plastic bottom plate with internal expansion bolts and adhesives. The plastic bottom plate is a mesh-shaped square, and there are multiple internal expansion bolts in the frame, as well as multiple transparent tapered square holes and multiple reinforcing ribs; the middle part of the frame is equipped with an air heat insulation chamber, and the bottom of the heat insulation chamber is equipped with damping Composite board and stainless steel pendant and EPS foam insulation board to prevent "thermal bridge". The bottom of EPS foam insulation board is provided with a layer of fireproof steel plate. The two sides of the frame are provided with elastic buckles composed of tenon and tenon.

The stone plate is natural marble, granite, slate, artificial stone, and the thickness is 5mm-10mm.

The diameter of the internal expansion bolt is 5mm-12mm.

The adhesive is epoxy resin glue with a thickness of 0.1mm-0.3mm.

The plastic bottom plate is thermoplastic or thermosetting engineering plastic, with a thickness of 35mm-50mm.

The hollow heat insulation chamber is composed of damping composite boards with a thickness of 15mm-25mm.

The damping plate is an aluminum alloy damping composite plate with a thickness of 3 mm to 6 mm.

The EPS foam board is a polystyrene foam insulation board with a thickness of 15mm-25mm.

The fireproof steel plate is a galvanized steel plate with a thickness of 0.2 mm to 1 mm.

The plastic bottom plate used in this scheme is molded by one-time injection molding with uniform specifications and standard sizes. At the same time, the plastic itself has good plasticity and can make complex structures at one time. It has low water absorption, light weight, small thermal conductivity and high tensile strength. , High specific strength characteristics. The plastic bottom plate is a mesh-shaped square, with multiple transparent tapered squares and thin reinforcing ribs in the middle. A 15mm thick hollow air heat insulation chamber is set between the tapered squares and the bottom surface of the reinforcing ribs to give the bottom plate Thermal expansion and contraction and water absorption deformation leave room for expansion and contraction. The deformation of the stone panel caused by the difference in linear expansion coefficient and the difference in water absorption between the stone panel and the plastic bottom plate is avoided. At the same time, the tapered grid and ribs can also absorb and disperse the impact from the outside. It brings great convenience to transportation and installation, and at the same time improves the safety and reliability of the building structure. There is an air heat insulation chamber in the middle of the plastic base plate, so as to achieve the effect of heat insulation and reduce the cost. The elastic fast snap-in on both sides of the frame realizes the fast disassembly and assembly without concrete mortar and electric welding, and the snap-in is stable and firm, so that the composite board can be used many times and is convenient for maintenance. There is a layer of EPS foam insulation board and fireproof galvanized steel plate at the bottom of the composite board, which avoids "thermal bridge" and fire and flame retardancy. In particular, the bottom plate is a mesh-shaped engineering plastic plate with a hollow chamber, which greatly reduces the weight of the composite plate, thereby reducing the load of the building, playing the role of heat insulation, and saving investment costs.

The two sides of the hollow stone-plastic composite board have convex buckles and concave buckles respectively. The embedding is an elastic structure. During installation, the convex embedding is tightly combined with the concave embedding under the action of external force, so that the composite board is stable and firm, and then the galvanized self-tapping nails are added to connect the structure of the wall. It forms a solid, beautiful, easy-to-clean and heat-insulating curtain wall.

Due to the above-mentioned technical scheme, the advantages and effects of the utility model are obvious:

1. Since only the surface layer of the hollow stone-plastic composite board is made of natural stone, the amount of natural stone can be reduced, resources are saved, the cost of the composite board is reduced, and the texture of the natural stone texture is also maintained.

2. Due to the use of thermoplastic engineering plastics as the bottom plate, it is light in weight, non-toxic, odorless and pollution-free, low in cost, low in water absorption, recyclable, environmentally friendly, acid and alkali resistant, oil resistant, corrosion resistant, moisture-proof and insect-proof.

3. Modular structure, convenient construction, easy operation, easy control of construction quality, short construction period and high efficiency.

4. The on-site assembly and construction of composite thermal insulation boards is adopted. The gaps between the boards are filled with thermal insulation materials and treated with sealing paste. The stress is fully released and the cracks are effectively controlled.

5. There is a hollow heat insulation chamber device on the insulation board, which is light in weight, low in price and small in thermal conductivity. It directly has a decorative stone surface and is installed in a large area. The appearance effect has a natural texture and a curtain wall effect.

6. No thermal bridge, good thermal insulation performance. The outer finish layer will not crack and deform during use, and the thermal insulation effect can last for decades.

7. The combination of thermal insulation materials and exterior stone panels is produced as factory prefabricated components, with good quality, high efficiency and strong reliability.

8. The exterior surface layer is a stone panel, which is weather-resistant, wear-resistant, scratch-resistant, chemical-resistant, easy to clean, fire-proof and non-combustible, moisture-proof, heat-insulating, low deformation rate, and has a natural, thick and gorgeous appearance.

9. Dry operation, less construction waste, to meet the needs of the development of construction technology.

10. Easy to buckle and disassemble, no need for concrete mortar or on-site electric welding, only need to be inserted into each other. The installation is 20 times faster than the above-mentioned external wall insulation systems. It is ready to use and does not require maintenance. It can be easily disassembled, easy to maintain, saves a lot of manpower and material resources, and is conducive to expanding popularization and use.

11. Sound absorption, quietness, heat preservation, heat insulation, no radiation, no pollution, good flexibility, compression resistance, bending resistance, high impact resistance, and concave-convex elastic embedded buckles are safe and reliable.

12. The pressure riveting paste technology is adopted, and the adhesion is firm.

13. Low cost, easy to obtain materials, high cost performance.

14. Prevent condensation and frost on the exterior of the veneer, and the indoor thermal insulation performance is stable.

Description of drawings:

Fig. 1 is the structure schematic diagram of the hollow stone-plastic composite panel for external wall insulation of the utility model.

Figure 2 is a schematic diagram of the bottom plate structure of the external thermal insulation hollow stone-plastic composite board.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings, in order to facilitate a better understanding of the utility model.

As shown in Figure 1. The embedded hollow heat-insulating stone-plastic composite panel is composed of a veneer ① and a bottom plate ③. The veneer ① is a stone veneer (granite, marble, slate, artificial stone), designed as a square block , generally rectangular, with a thickness of 5mm-10mm. A thermoplastic engineering plastic plate ③ with a thickness of 35-50mm is compounded under the stone veneer layer ① as the bottom layer, and the veneer layer ① and the bottom layer ③ are pasted together by an epoxy adhesive layer ②. The adhesive is squeezed into the grid tapered square holes (11) of the bottom plate ③, and after drying, a tapered square rubber block with a small top and a large bottom is formed, which plays a role of riveting and firm combination. On the side of the plastic bottom plate ③, there are respectively convex embedding buckles ⑤ and concave embedding buckles ⑥, which are used for the installation and splicing between blocks. During installation, the convex buckle ⑤ is closely combined with the concave buckle ⑥ under the action of external pressure. When the convex buckle ⑤ and the concave buckle ⑥ are closely matched, the stone-plastic composite board can be spliced together through the buckle, so that each stone The surface layers between the plastic composite veneers are connected smoothly, balanced and firm, and the overall appearance is beautiful. Because the bottom plate of this stone-plastic composite board is made of high-strength thermoplastic engineering plastics, it is not easy to deform, light in weight, high in compressive strength, small in linear expansion coefficient, and has good toughness and impact strength. No concrete mortar or electric welding is required during installation, which is environmentally friendly and energy-saving. At the same time, it can be installed quickly, the construction is convenient and simple, the efficiency is high, and a lot of manpower and material resources are saved. At the same time, it can be assembled and disassembled repeatedly, which brings great convenience to future maintenance.

As shown in Figure 2, the air insulation chamber ⑦ and the glass fiber damping heat insulation board ⑧ are arranged in the middle of the plastic bottom plate ③, and the air heat insulation chamber ⑦ and the glass fiber damping heat insulation board ⑧ are bonded to form a sealed hollow insulation hot bin. In this way, using the principle of small thermal conductivity of dry air, a heat insulation effect with high quality and low price is achieved.

In order to completely eliminate the "thermal bridge" and the performance of fire prevention, flame retardancy, moisture resistance and moisture insulation of this technical solution. The EPS insulation material layer ⑨ and the galvanized steel sheet layer ⑩ are added. Thoroughly eliminate the incoming heat from the internal expansion bolt ④ and achieve the technical standards of fire retardant, moisture-proof and moisture-proof. At the same time, due to the use of the sealed hollow heat insulation layer structure, condensation and frost on the stone veneer layer are prevented, the main structure of the building is more effectively protected, and the life of the building is extended.

Claims (5)

1. an imbedded and fastened hollow heat insulation exterior is incubated the stone plastic clad plate outward, it is characterized in that: the stone matter panel (1) of square configuration combines with EXPANSION ANCHOR BOLTS (4) and tackiness agent (2) with framework netted plastic base plate (3); Plastic bottom board (3) is netted shape square, and the framework surface layer is penetrating tapering square hole (11), and the centre is provided with the heat insulation storehouse of hollow (7), and both sides are provided with the elastic force buckle of being made up of tenon (5) and tongue-and-groove (6).

2. stone plastic clad plate as claimed in claim 1 is characterized in that: described stone matter panel (1) is natural marble, granite, slate or Manmade Stone, thickness 5mm---10mm.

3. stone plastic clad plate as claimed in claim 1 is characterized in that: described plastic bottom board (3) is for being provided with the thermoplastic engineering plastic in the heat insulation storehouse of air, and thickness is 35mm---50mm.

4. stone plastic clad plate as claimed in claim 1 is characterized in that: described plastic bottom board (3), be the quadra reticular structure, and be embedded with a plurality of EXPANSION ANCHOR BOLTS and a plurality of penetrating tapering square hole in the frame.

5. stone plastic clad plate as claimed in claim 1 is characterized in that: the concavo-convex elastic force buckle (5) (6) of the buckle of described plastic bottom board (3) both sides for being made up of tenon and tongue-and-groove, thickness is 8mm---12mm.

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