Composite exterior wall panels

Abstract

The technical solution of the utility model discloses a composite enclosure exterior wall panel, which is composed of a load-bearing lightweight wall panel, an insulation layer, a fire protection layer and a decorative base layer stacked in sequence from the indoor side to the outdoor side of the building. The insulation layer, the fire protection layer and the decorative base layer are attached to the load-bearing lightweight wall panel through a series of connectors, and the connector is anchored in the load-bearing lightweight wall panel at one end close to the indoor. The load borne by the composite enclosure exterior wall panel is all borne by the load-bearing lightweight wall panel. The insulation layer is a thermal insulation material with a combustion performance grade of B1 or B2, the fire protection layer is a material with a combustion performance grade of A, and the decorative base layer is a crack-resistant mortar plaster. The utility model reduces the overall thickness and surface density of the exterior wall, can realize the overall factory prefabrication of the enclosure and insulation function modules, and the integrated synchronous construction on site, can realize the effective connection of the insulation layer and the outer protective layer throughout the life cycle, avoid the insulation layer and the outer protective layer from falling off, and greatly reduce the amount of high-altitude work and construction risks on the exterior wall site.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, relates to a building enclosure exterior wall, and particularly relates to a composite enclosure exterior wall board. Background Art

[0002] The thermal performance of the building's exterior walls directly affects the energy consumption level during the building's operation phase. At the same time, the combustion performance level of high-performance insulation materials is low, usually B1 or B2, and cannot meet the non-combustibility requirements. Under fire, the exterior wall insulation layer is prone to continuous combustion, affecting fire safety. Existing frame structure buildings mostly use strip boards to replace traditional masonry walls to improve construction efficiency, and the external insulation system is constructed on the basis of the strip board exterior wall.

[0003] However, the above method usually has the following technical problems:

[0004] First, the external insulation construction process is complicated, requiring workers to complete a series of operations such as pasting insulation boards and plastering at high altitudes, making quality supervision difficult and construction quality difficult to guarantee;

[0005] Second, the external insulation system generally uses B1 or B2 grade insulation materials, and the outer side is only protected by a 10mm thick plaster layer. The insulation material is prone to continuous combustion in a fire.

[0006] Third, the external insulation system is attached to the outer wall of the enclosure through nylon insulation nails, which are installed by punching holes at the back. In addition, the material strength of the outer wall strips themselves is relatively low, so the external insulation system has a high risk of falling off and poor durability. Utility Model Content

[0007] In order to overcome the shortcomings of the above-mentioned prior art, the utility model proposes a composite enclosure exterior wall panel, which can realize the simultaneous construction of the enclosure and insulation functional modules of the building enclosure exterior wall, with high installation efficiency, and at the same time avoid one or more problems of the prior art, such as large amount of high-altitude operations, difficulty in ensuring and supervising construction quality, high risk of continuous combustion of the insulation layer, and easy falling off of the external insulation system.

[0008] Some embodiments of the utility model provide composite enclosure exterior wall panels for realizing the integration of thermal insulation and enclosure functions of building exterior walls, wherein the composite enclosure exterior wall panels are composed of a load-bearing lightweight wall panel, a thermal insulation layer, a fire protection layer and a decorative base layer stacked in sequence from the indoor side to the outdoor side of the building, the thermal insulation layer, the fire protection layer and the decorative base layer are attached to the load-bearing lightweight wall panel through a series of connectors, and the connector is anchored in the load-bearing lightweight wall panel at one end close to the indoor; the load borne by the composite enclosure exterior wall panel is entirely borne by the load-bearing lightweight wall panel, and the apparent density of the load-bearing lightweight wall panel is less than 1300kg / m 3 ; The insulation layer is made of insulation material with a combustion performance grade of B1 or B2; the fire protection layer is made of material with a combustion performance grade of A.

[0009] In some embodiments, the material of the fire protection layer is a rubber powder polystyrene particle mortar, a vitrified micro-bead mortar, a foamed concrete or a thermosetting composite polystyrene board.

[0010] In some embodiments, the load-bearing lightweight wallboard is a foam concrete solid board, a ceramsite concrete hollow board, a gypsum hollow strip board or a cement hollow strip board.

[0011] Specifically, the connector is made of engineering plastic composited on the surface of a metal rod, a tail plate is provided at the end of the connector close to the outdoors, the tail plate is located in the decorative base layer, a plurality of continuous bends are provided in the anchoring section of the connector in the stressed lightweight wall panel, and the diameter of the metal rod is 3 to 6 mm.

[0012] In some embodiments, the material of the decorative base layer is anti-cracking mortar, and the thickness of the decorative base layer is 5 to 10 mm.

[0013] Particularly, the inner side of the load-bearing lightweight wall panel is provided with inter-board leveling grooves at both ends along the width direction of the load-bearing lightweight wall panel, the depth of the inter-board leveling grooves is 5-10 mm, and the width of the inter-board leveling grooves is 5-10 cm.

[0014] Specifically, the total thickness of the fire protection layer and the decorative base layer is 45 to 55 mm, and the thermal insulation layer and the fire protection layer are flush at both ends along the width direction of the composite enclosure exterior wall panel and staggered by 20 to 50 mm from both ends of the load-bearing lightweight wall panel.

[0015] In some embodiments, when the load-bearing lightweight wall panel has a series of vertical holes, the connector is anchored in the ribs between adjacent vertical holes of the load-bearing lightweight wall panel, and the upper and lower ends of the vertical holes of the load-bearing lightweight wall panel are sealed with polyurethane or glue powder polystyrene particle mortar.

[0016] Optionally, pre-buried attachment points are provided at the upper and lower ends of the load-bearing lightweight wall panels in the height direction, and the load-bearing lightweight wall panels are attached to the main structure of the building through the pre-buried attachment points.

[0017] Specifically, the main body of the embedded attachment point is a connecting sleeve, which passes through the thickness direction of the load-bearing lightweight wall panel. An anchor plate is provided at the end of the connecting sleeve away from the room, and the anchor plate is fixed to the fire protection layer by self-tapping screws.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] (1) The utility model can realize the overall factory prefabrication of the enclosure and insulation functional modules of the building enclosure exterior wall and the on-site integrated synchronous construction, which greatly improves the on-site construction efficiency, greatly reduces the amount of high-altitude operations on site, and reduces construction safety risks.

[0020] (2) The utility model adopts thermal insulation materials with a combustion performance grade of B1 or B2 as the thermal insulation layer. The thermal conductivity of the thermal insulation material is small, which can effectively control the thickness of the thermal insulation layer. At the same time, a non-combustible material is composited on the outside of the thermal insulation layer as a protective layer of the thermal insulation layer, which can effectively prevent the thermal insulation layer from continuous combustion under fire and ensure fire safety.

[0021] (3) The outer protective layer of the thermal insulation layer of the utility model is a lightweight A-grade material, and the inner wall panels that bear the load are lightweight wall panels. The overall surface density of the wall panels is low, which is easy to install.

[0022] (4) The thermal insulation layer and the outer protective layer of the utility model are directly attached to the load-bearing lightweight wall panels through connecting parts. The connecting parts are pre-buried and anchored on the load-bearing lightweight wall panels during the production process of the load-bearing lightweight wall panels, which can achieve effective connection of the thermal insulation layer and the outer protective layer throughout their life cycle and prevent the thermal insulation layer and the outer protective layer from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the composite enclosure exterior wall panel in Example 1 of the utility model.

[0025] Figure 2 for Figure 1 Cross-sectional view of section AA.

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting piece in the utility model.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the composite enclosure exterior wall panel in the second embodiment of the present utility model.

[0028] Figure 5 for Figure 4 Cross-sectional view of the BB section.

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the composite enclosure exterior wall panel in the third embodiment of the present utility model.

[0030] Figure 7 for Figure 6 Cross-sectional view of the CC section.

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting sleeve in the third embodiment of the present utility model.

[0032] In the figure: 1-load-bearing lightweight wall panel; 11-leveling groove between panels; 2-insulation layer; 3-fire protection layer; 4-decorative base layer; 5-connector; 51-anchor section; 52-tail plate; 6-embedded attachment point; 61-connecting sleeve; 62-anchor plate; 63-self-tapping screw. DETAILED DESCRIPTION

[0033] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, the embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0034] Unless otherwise specified, the technical and scientific terms used in this document have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs; other experimental methods and technical means not specifically specified in this application refer to experimental methods and technical means commonly used by ordinary technicians in this field.

[0035] The utility model provides a composite enclosure exterior wall panel, which has the advantages of light weight and easy installation, while avoiding the shortcomings of the prior art such as large amount of high-altitude work, difficulty in ensuring construction quality, high risk of continuous burning of the insulation layer and easy falling off of the external insulation system.

[0036] In the description of the present invention, it should be noted that the terms "outdoor" and "indoor" refer to the actual positional relationship between indoor and outdoor in actual buildings, and the terms "upper end", "lower end", "height direction" and "width direction" are based on the orientation or positional relationship of the composite enclosure exterior wall panels of the present invention when they are used. The above terms restrict the orientation and structure of the composite enclosure exterior wall panels of the present invention.

[0037] refer to Figure 1-2 The composite enclosure exterior wall panel of the utility model is used to realize the integration of thermal insulation and enclosure functions of the building exterior wall, wherein the composite enclosure exterior wall panel is composed of a load-bearing lightweight wall panel 1, a thermal insulation layer 2, a fire protection layer 3 and a decorative base layer 4 stacked in sequence from the indoor side to the outdoor side of the building, the thermal insulation layer 2, the fire protection layer 3 and the decorative base layer 4 are attached to the load-bearing lightweight wall panel 1 through a series of connectors 5, and the connector 5 is anchored in the load-bearing lightweight wall panel 1 at one end close to the indoor part; the load borne by the composite enclosure exterior wall panel is all borne by the load-bearing lightweight wall panel 1, that is, the thermal insulation layer 2, the fire protection layer 3 and the decorative base layer 4 do not bear the exterior wall load, but only play the corresponding thermal insulation and decorative functions, and the apparent density of the load-bearing lightweight wall panel 1 is lower than 1300kg / m 3Controlling the apparent density of the load-bearing lightweight wall panel 1 can reduce the deadweight of the composite enclosure exterior wall panel and facilitate the operation of workers during installation at the construction site; the insulation layer 2 is an insulation material with a combustion performance grade of B1 or B2. The thermal conductivity of the insulation material with a combustion performance grade of B1 or B2 is low. Under the same insulation performance requirements, the thickness of the B1 or B2 insulation material is significantly lower than that of the A-grade insulation material; the fire protection layer 3 is a material with a combustion performance grade of A. The A-grade material provides protection for the inner insulation layer 2 under fire to prevent continuous combustion of the exterior wall insulation system. At the same time, the density of the A-grade material is low.

[0038] The thermal insulation layer 2 and the fire protection layer 3 are directly attached to the load-bearing lightweight wallboard 1 through the connecting piece. The connecting piece 5 is pre-buried and anchored on the load-bearing lightweight wallboard 1 during the production process of the load-bearing lightweight wallboard 1, which can realize the effective connection of the thermal insulation layer 2 and the fire protection layer 3 throughout the life cycle and prevent the thermal insulation layer 2 and the fire protection layer 3 from falling off. At the same time, the heat transfer coefficient in the cold areas of northern my country is 0.20W / (m 2 ·K) Taking the exterior wall of a building with a floor height of 4.0m as an example, the technical solutions that can be used for the exterior wall include autoclaved aerated concrete strips for external insulation on site and sandwich insulation autoclaved aerated concrete strips. The thickness of the autoclaved aerated concrete strips, polyurethane insulation layer and decorative surface layer from the indoor side to the outdoor side of the building are 200mm, 110mm and 10mm respectively. The total thickness of the exterior wall is 320mm and the surface density is 150kg / m 2 At the same time, fire isolation zones must be set up in accordance with current national standards; sandwich insulation autoclaved aerated concrete strips are used. The thickness of the autoclaved aerated concrete strips, polyurethane insulation layer, and autoclaved aerated concrete strips from the indoor side to the outdoor side of the building are 200mm, 100mm, and 100mm respectively. The total thickness of the exterior wall is 400mm and the surface density is 185kg / m 2 The composite enclosure exterior wall panels of the utility model are used. The thickness of the lightweight wall panels, polyurethane insulation layer, fire protection layer and decorative base layer from the indoor side to the outdoor side of the building are 120mm, 120mm, 45mm and 5mm respectively. The total thickness of the exterior wall is 290mm and the surface density is 135kg / m 2 Compared with the existing autoclaved aerated concrete slats for external insulation on site and sandwich insulation autoclaved aerated concrete slats, the total thickness of the composite enclosure exterior wall panel of the utility model can be reduced by 30mm and 110mm respectively, which can increase the usable area of ​​the building and has the smallest surface density. At the same time, it has the advantages of integrated prefabrication of enclosure and insulation functional modules, good durability of the exterior wall brought by construction, the insulation layer is not easy to fall off, the construction speed is fast, and the insulation has the same lifespan as the exterior wall.

[0039] Embodiment 1

[0040] See also Figure 1-2 , shows a composite enclosure exterior wall panel of an embodiment, which is composed of a load-bearing lightweight wall panel 1, a thermal insulation layer 2, a fire protection layer 3 and a decorative base layer 4 stacked in sequence from the indoor side to the outdoor side of the building. The thermal insulation layer 2, the fire protection layer 3 and the decorative base layer 4 are attached to the load-bearing lightweight wall panel 1 through a series of connectors 5, and the connector 5 is anchored in the load-bearing lightweight wall panel 1 at one end close to the indoor space; the load borne by the composite enclosure exterior wall panel is all borne by the load-bearing lightweight wall panel 1, that is, the thermal insulation layer 2, the fire protection layer 3 and the decorative base layer 4 do not bear the external wall load, but only play the corresponding thermal insulation and decorative functions, and the apparent density of the load-bearing lightweight wall panel 1 is lower than 1300kg / m 3 ; The thermal insulation layer 2 is a thermal insulation material with a combustion performance grade of B1 or B2; the fire protection layer 3 is a material with a combustion performance grade of A, and the A-grade material provides protection for the inner thermal insulation layer 2 under fire.

[0041] In this embodiment, the material of the fire protection layer 3 is glue powder polystyrene particle mortar, vitrified microbead mortar, foam concrete or thermosetting composite polystyrene board; the material of the decorative base layer 4 is anti-cracking mortar, and the thickness of the decorative base layer 4 is 5 to 10 mm, which provides a base for the construction of the exterior wall decoration surface and also plays a role in waterproofing and leveling; the total thickness of the fire protection layer 3 and the decorative base layer 4 is 45 to 55 mm, which meets the current specifications for the thickness of the non-combustible protective layer on the outside of the insulation material with a combustion performance grade of B1 or B2, and can avoid continuous combustion of B1 or B2 insulation materials under fire.

[0042] In this embodiment, the load-bearing lightweight wallboard 1 is made of ceramsite concrete hollow board, gypsum hollow board or cement hollow board. Figure 1 , Figure 2 As shown, the load-bearing lightweight wall panel 1 has a series of vertical holes, which are connected along the height direction of the load-bearing lightweight wall panel 1. The vertical holes can further reduce the apparent density of the load-bearing lightweight wall panel 1, and at the same time, the bending resistance of the load-bearing lightweight wall panel 1 under the action of the plane load is slightly weakened. Furthermore, the upper and lower ends of the vertical holes of the load-bearing lightweight wall panel 1 are sealed with polyurethane or glue powder polystyrene particle mortar to reduce the air flow in the vertical holes to improve the thermal insulation performance of the load-bearing lightweight wall panel 1, and at the same time, prevent outdoor rainwater from leaking into the vertical holes to improve the waterproof performance of the composite enclosure exterior wall panel.

[0043] In this embodiment, the connecting member 5 is made of a metal rod surface composite engineering plastic, such as Figure 2 , Figure 3 As shown, the connector 5 is provided with a tail plate 52 at one end close to the outside, and the tail plate 52 is located in the decorative base layer 4. The connector 5 is provided with a plurality of continuous bends in the anchoring section 51 in the load-bearing lightweight wall panel 1 to improve the anchoring bearing capacity of the connector 5 in the load-bearing lightweight wall panel 1. The diameter of the metal rod of the connector 5 is 3 to 6 mm, and the connector 5 is anchored in the ribs between adjacent vertical holes of the load-bearing lightweight wall panel 1.

[0044] In this embodiment, when the material of the fire protection layer 3 is a glue powder polystyrene particle mortar, a vitrified micro-bead mortar or a thermosetting composite polystyrene board, in the process of manufacturing the composite enclosure exterior wall panel, the fire protection layer 3 is firstly composited on the basis of the thermal insulation layer 2, and then the connector 5 is inserted according to the designed position, and the anti-cracking mortar finishing construction of the decorative base layer 4 is performed on the surface of the fire protection layer 3. Figure 1 As shown, the decorative base layer 4 is indented 50 to 100 mm inwards from the fire protection layer 3 to serve as the space for plastering and leveling between the composite enclosure exterior wall panels in the later stage, and at the same time improve the waterproof performance of the composite enclosure exterior wall panels; after the anti-cracking mortar of the decorative base layer 4 is cured to a certain strength, the integral assembly consisting of the thermal insulation layer 2, the composite fire protection layer 3 and the decorative base layer 4 is placed in the vertical mold, and the vertical hole core mold of the load-bearing lightweight wall panel 1 is inserted, and the ceramsite concrete, gypsum mixed slurry or cement mixed slurry of the load-bearing lightweight wall panel 1 is poured, and the integral composite enclosure exterior wall panel is formed after curing to the design strength. It should be noted that the decorative base layer 4 may not be prefabricated in the factory according to the engineering conditions. After the composite enclosure exterior wall panels are installed at the construction site, the anti-cracking mortar of the decorative base layer 4 is applied on the surface of the fire protection layer 3. Furthermore, stress-bearing steel bars are arranged in the stress-bearing lightweight wall panel 1 to improve the bending bearing capacity and crack resistance of the stress-bearing lightweight wall panel 1, further reduce the thickness of the stress-bearing lightweight wall panel 1, increase the usable area of ​​the building, and reduce the difficulty of installation operation. At the same time, the end of the connecting piece 5 extending into the stress-bearing lightweight wall panel 1 can be welded or tied to the steel mesh of the stress-bearing lightweight wall panel 1, which can play a positioning role and can also further improve the anchoring performance of the connecting piece 5 in the stress-bearing lightweight wall panel 1.

[0045] In this embodiment, when the material of the fire protection layer 3 is foamed concrete, the integral assembly consisting of the insulation layer 2 and the connecting piece 5 is placed in a vertical mold, and the foamed concrete on the outdoor side is poured to form the fire protection layer 3. The expanded clay concrete, gypsum mixed slurry or cement mixed slurry on the indoor side is poured to form the load-bearing lightweight wall panel 1. When the smoothness of the outdoor side surface of the foamed concrete meets the finishing requirements, the foamed concrete can be used directly as the base layer of the decorative surface. That is to say, the outdoor side surface of the fire protection layer 3 formed by the foamed concrete also serves as the decorative base layer 4.

[0046] In this embodiment, Figure 1 , Figure 2As shown, the insulation layer 2 and the fire protection layer 3 are flush at both ends along the width direction of the composite enclosure exterior wall panel, and are staggered by 20 to 50 mm with the two ends of the load-bearing lightweight wall panel 1. That is to say, the insulation layer 2 and the fire protection layer 3 form a tongue-and-groove misalignment with the end of the inner load-bearing lightweight wall panel 1. When the composite enclosure exterior wall panel is installed at the construction site, polyurethane or waterproof coating is applied to the side of the insulation layer 2. After the adjacent composite enclosure exterior wall panels are assembled, the water seepage path between the joints of the composite enclosure exterior wall panels can be extended to improve the overall waterproof performance of the exterior wall. Furthermore, recesses and protrusions are set at both ends of the load-bearing lightweight wall panel 1 along the width direction, and mortar is applied to the side of the load-bearing lightweight wall panel 1 at the construction site. The recesses and protrusions of the adjacent load-bearing lightweight wall panels 1 bite each other to further improve the overall waterproof performance of the exterior wall.

[0047] Embodiment 2

[0048] See also Figure 4-5 The structure of the composite exterior wall panel of this embodiment is basically the same as that of the first embodiment, and is composed of a load-bearing lightweight wall panel 1, an insulation layer 2, a fire protection layer 3 and a decorative base layer 4 stacked in sequence from the indoor side to the outdoor side of the building. The insulation layer 2, the fire protection layer 3 and the decorative base layer 4 are attached to the load-bearing lightweight wall panel 1 through a series of connectors 5, and the connector 5 is anchored in the load-bearing lightweight wall panel 1 at one end close to the interior.

[0049] The difference between the composite enclosure exterior wall panel structure in this embodiment and that in embodiment one is that the load-bearing lightweight wall panel 1 is a solid foam concrete panel, and the position of the connecting member 5 is not affected by the vertical hole in embodiment one, that is to say, the arrangement position of the connecting member 5 is relatively flexible, and at the same time, the load-bearing lightweight wall panel 1 is provided with inter-board leveling grooves 11 at both ends of the indoor side along the width direction of the load-bearing lightweight wall panel 1, the depth of the inter-board leveling groove 11 is 5 to 10 mm, and the width of the inter-board leveling groove 11 is 5 to 10 cm. After the installation of the composite enclosure exterior wall panels at the construction site is completed, the inter-board leveling grooves 11 of adjacent load-bearing lightweight wall panels 1 are spliced ​​into grooves with a larger width, and the leveling of the indoor side of the adjacent composite enclosure exterior wall panels can be completed by applying anti-cracking mortar on the inter-board leveling grooves 11, and at the same time, the anti-cracking mortar in the inter-board leveling grooves 11 can form a waterproof effect on the indoor side, thereby improving the overall waterproof performance of the exterior wall.

[0050] Embodiment 3

[0051] See also Figure 6-7 The structure of the composite enclosure exterior wall panel of this embodiment is basically the same as that of the first embodiment or the second embodiment, except that the upper and lower ends of the composite enclosure exterior wall panel of this embodiment are connected to the main structure of the building by bolts, and then attached to the main structure of the building. In order to achieve the above bolt connection, a pre-buried attachment point 6 is provided at the upper and lower ends of the load-bearing lightweight wall panel 1 along the height direction during the manufacturing process of the composite enclosure exterior wall panel. Figure 8As shown, the main body of the embedded attachment point 6 is a connecting sleeve 61, which is provided with an internal thread. At the construction site, bolts are screwed into the connecting sleeve 61 to achieve the attachment of the load-bearing lightweight wall panel 1 to the main structure of the building through the embedded attachment point 6. It is worth noting that the embedded attachment point 6 is made of steel or FRP material as a whole. The FRP material has the effect of further reducing the thermal bridge of the connection point. The connecting sleeve 61 penetrates along the thickness direction of the load-bearing lightweight wall panel 1. Figure 8 An anchor plate 62 is provided at the end of the connecting sleeve 61 away from the room. During the stress process, the contact area between the anchor plate 62 and the stressed lightweight wall panel 1 is large, which can prevent the stressed lightweight wall panel 1 from being partially damaged at the embedded attachment point 6 due to its own low material strength. Before casting the stressed lightweight wall panel 1, the embedded attachment point 6 is fixed to the insulation layer 2 and the fire protection layer 3 to prevent the embedded attachment point 6 from shifting. The anchor plate 62 adopts a circular cross-section, which is convenient for using a circular drill bit to cut off the insulation material of the corresponding thickness of the anchor plate 62 at the corresponding position of the insulation layer 2. The anchor plate 62 is pasted on the insulation layer 2 with glue or polyurethane, and further fixed to the fire protection layer 3 by self-tapping screws 63 through the insulation layer 2. The embedded attachment point 6 is prevented from shifting during the casting of the stressed lightweight wall panel 1 by dual fixing measures of pasting and self-tapping screws.

[0052] In summary, in the present invention, the production process of composite enclosure exterior wall panels is taken into consideration to optimize the structure of the non-stress-bearing layer of the composite enclosure exterior wall panels. The fireproof performance of the external insulation is improved by composite A-class materials on the outside of B1-class or B2-class insulation materials. The connecting parts for fixing the insulation layer and the fire protection layer are optimized from traditional post-punching anchoring to integral pre-embedded. The composite enclosure exterior wall panels use a single layer as the stress-bearing structure and use lightweight wall panels with higher strength, which reduces the overall thickness and surface density of the building's exterior wall. The overall factory prefabrication and on-site integrated synchronous construction of the enclosure and insulation functional modules can be realized, and the insulation layer and the outer protective layer can be effectively connected throughout their life cycle to avoid the insulation layer and the outer protective layer from falling off, which greatly reduces the amount of high-altitude operations on the exterior wall and reduces construction safety risks.

[0053] The above description is only some preferred embodiments of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the disclosure scope involved in the embodiments of the utility model is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the embodiments of the utility model (but not limited to) to form a technical solution.

Claims

1. Composite enclosure exterior wall panels are used to integrate the insulation and enclosure functions of the building exterior wall, and are characterized by: The composite enclosure exterior wall panels are composed of a load-bearing lightweight wall panel, a thermal insulation layer, a fire protection layer and a decorative base layer from the indoor side to the outdoor side of the building. The thermal insulation layer, the fire protection layer and the decorative base layer are attached to the load-bearing lightweight wall panel through a series of connectors. The connector is anchored in the load-bearing lightweight wall panel at one end close to the indoor side. The loads of the composite enclosure exterior wall panels are all borne by the load-bearing lightweight wall panels, and the apparent density of the load-bearing lightweight wall panels is less than 1300kg / m 3 ; The insulation layer is made of insulation material with combustion performance grade of B1 or B2; The fire protection layer is made of material with combustion performance grade A.

2. The composite enclosure exterior wall panel according to claim 1, characterized in that: The material of the fire protection layer is rubber powder polystyrene particle mortar, vitrified micro-bead mortar, foam concrete or thermosetting composite polystyrene board.

3. The composite enclosure exterior wall panel according to claim 1, characterized in that: The load-bearing lightweight wall panels are foam concrete solid panels, ceramsite concrete hollow panels, gypsum hollow strip panels or cement hollow strip panels.

4. The composite enclosure exterior wall panel according to claim 1, characterized in that: The connector is made of engineering plastic composited on the surface of a metal rod. A tail plate is provided at one end of the connector close to the outdoors. The tail plate is located in the decorative base layer. The connector is provided with multiple continuous bends in the anchoring section in the stressed lightweight wall panel. The diameter of the metal rod is 3 to 6 mm.

5. The composite enclosure exterior wall panel according to claim 1, characterized in that: The material of the decorative base layer is anti-cracking mortar, and the thickness of the decorative base layer is 5 to 10 mm.

6. The composite exterior wall panel according to claim 1, characterized in that: Leveling grooves between boards are arranged at both ends of the indoor side of the load-bearing lightweight wallboard along the width direction of the load-bearing lightweight wallboard. The depth of the leveling groove between boards is 5-10 mm, and the width of the leveling groove between boards is 5-10 cm.

7. The composite exterior wall panel according to claim 1, characterized in that: The total thickness of the fire protection layer and the decorative base layer is 45 to 55 mm. The thermal insulation layer and the fire protection layer are flush at both ends along the width direction of the composite enclosure exterior wall panels and staggered by 20 to 50 mm from both ends of the load-bearing lightweight wall panels.

8. The composite enclosure exterior wall panel according to claim 3, characterized in that: When the load-bearing lightweight wall panel has a series of vertical holes, the connector is anchored in the ribs between adjacent vertical holes of the load-bearing lightweight wall panel, and the upper and lower ends of the vertical holes of the load-bearing lightweight wall panel are sealed with polyurethane or glue powder polystyrene particle mortar.

9. The composite exterior wall panel according to claim 1, characterized in that: The upper and lower ends of the load-bearing lightweight wall panels along the height direction are provided with pre-buried attachment points, and the load-bearing lightweight wall panels are attached to the main structure of the building through the pre-buried attachment points.

10. The composite exterior wall panel according to claim 9, characterized in that: The main body of the embedded attachment point is a connecting sleeve, which penetrates along the thickness direction of the load-bearing lightweight wall panel. An anchor plate is arranged at the end of the connecting sleeve away from the room, and the anchor plate is fixed to the fire protection layer by self-tapping screws.

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