Prefabricated sandwich exterior wall cladding

Abstract

The utility model discloses a prefabricated sandwich exterior wall cladding, which relates to the technical field of building exterior wall cladding, and comprises an inner leaf wallboard and an outer leaf wallboard, a heat insulation connecting piece is clamped between the inner leaf wallboard and the outer leaf wallboard, the heat insulation connecting piece comprises peripheral connecting pieces positioned at the peripheral positions of the inner leaf wallboard and the outer leaf wallboard, and the peripheral connecting pieces are connected with the inner leaf wallboard and the outer leaf wallboard. At least one transverse connecting piece and at least one vertical connecting piece are arranged in the peripheral connecting piece, and a cavity in the inner side of the heat insulation connecting piece is filled with heat preservation materials. A plurality of inner leaf tie nails extending into the inner leaf wallboard and a plurality of outer leaf tie nails extending into the outer leaf wallboard are nailed on the heat insulation connecting piece, and the inner leaf tie nails and the outer leaf tie nails are not in contact with each other. Heat bridges are remarkably reduced, damage to heat preservation materials is avoided, the heat preservation performance is guaranteed, and the connection strength of door and window openings is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to building outer wall hanging plate technical field especially, relates to a prefabricated sandwich outer wall hanging plate. BACKGROUND

[0002] The prefabricated sandwich outer wall hanging plate is a kind of composite board for building outer wall, with heat preservation, decorative, waterproof and fireproof functions.The conventional prefabricated sandwich outer wall hanging plate, as shown in Fig. Figure 12 It is composed of two wallboards and intermediate thermal insulation material, and the intermediate thermal insulation material uses extruded board or polyurethane board, etc., and steel bar truss is used to support and connect between inner leaf wallboard and outer leaf wallboard.In this structure, a large number of thermal bridges will be generated at steel bar truss, which will significantly reduce the heat preservation performance of the whole outer wall hanging plate.In addition, the intermediate thermal insulation material is in exposed state at the periphery of outer wall hanging plate, which is easy to be damaged during transportation and installation, and thus affects the heat preservation performance.Furthermore, when door and window openings are needed to be provided on outer wall hanging plate, as shown in Fig. Figure 11 And Figure 12 Due to the soft thermal insulation material in the middle of outer wall hanging plate, it is difficult to fix the door and window, and after installation of door and window, waterproof failure and durability failure are likely to occur at door and window openings. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem to provide a prefabricated sandwich outer wall hanging plate, which significantly reduces the generation of thermal bridges, avoids damage to thermal insulation material, ensures the heat preservation performance, and ensures the connection strength at door and window openings.

[0004] To solve the above technical problem, the technical scheme of the utility model is as follows: a prefabricated sandwich outer wall hanging plate, comprising inner leaf wallboard and outer leaf wallboard, a heat insulation connecting piece is arranged between the inner leaf wallboard and the outer leaf wallboard, the heat insulation connecting piece comprises a peripheral connecting piece at the peripheral position of the inner leaf wallboard and the outer leaf wallboard, at least one horizontal connecting piece and at least one vertical connecting piece are arranged in the peripheral connecting piece, and a cavity is filled with thermal insulation material in the inner side of the heat insulation connecting piece; a plurality of inner leaf tie nails extending into the inner leaf wallboard and a plurality of outer leaf tie nails extending into the outer leaf wallboard are arranged on the heat insulation connecting piece, and the inner leaf tie nails and the outer leaf tie nails are arranged without contacting each other.

[0005] As a preferred technical scheme, the inner leaf wallboard and the outer leaf wallboard are provided with corresponding door and window openings, the door and window openings are used for fixing and installing door and window pieces, and the heat insulation connecting piece comprises door and window connecting pieces at the periphery of the door and window openings.

[0006] As a preferred technical scheme, the door and window pieces are arranged close to the outer leaf wallboard, a closed groove is arranged on the outer side of the door and window connecting piece close to the inner leaf wallboard, and mortar is filled in the closed groove.

[0007] As a preferred technical scheme, the door and window part is arranged close to the outer leaf wallboard, a closed groove is arranged on the outer side of the door and window connecting part close to the inner leaf wallboard, and the inner leaf wallboard is integrally provided with a filling part filled into the closed groove.

[0008] As a preferred technical scheme, the thickness of the thermal insulation material is greater than the thickness of the thermal insulation connecting part, and the inner leaf wallboard and / or the outer leaf wallboard is provided with a thermal insulation groove corresponding to the protruding part of the thermal insulation material.

[0009] As a preferred technical scheme, a thermal insulation cavity is arranged between the thermal insulation groove and the thermal insulation material.

[0010] As a preferred technical scheme, the thermal insulation connecting part is integrally provided with a tie key extending into the inner leaf wallboard and / or the outer leaf wallboard.

[0011] As a preferred technical scheme, the thermal insulation connecting part is made of hardwood material, wood-plastic material or plastic profile.

[0012] Due to the above technical scheme, a prefabricated sandwich outer wall hanging plate is provided, which comprises an inner leaf wallboard and an outer leaf wallboard, a thermal insulation connecting part is arranged between the inner leaf wallboard and the outer leaf wallboard, the thermal insulation connecting part comprises a peripheral connecting part arranged at the peripheral position of the inner leaf wallboard and the outer leaf wallboard, at least one horizontal connecting part and at least one vertical connecting part are arranged in the peripheral connecting part, and a thermal insulation material is filled in the cavity on the inner side of the thermal insulation connecting part; a plurality of inner leaf tie nails extending into the inner leaf wallboard and a plurality of outer leaf tie nails extending into the outer leaf wallboard are arranged on the thermal insulation connecting part, and the inner leaf tie nails and the outer leaf tie nails are arranged without contacting each other. The thermal insulation connecting part is arranged between the inner leaf wallboard and the outer leaf wallboard, the thermal insulation connecting part itself has thermal insulation property, the inner leaf tie nails and the outer leaf tie nails are arranged to form tie connection with the inner leaf wallboard and the outer leaf wallboard respectively, the tie effect is good, and the heat bridge can be significantly reduced due to the non-contact between the inner leaf tie nails and the outer leaf tie nails. The peripheral part between the inner leaf wallboard and the outer leaf wallboard is surrounded by the peripheral connecting part with high hardness, which effectively avoids damage of the internal thermal insulation material and helps to ensure the thermal insulation performance. Even when the door and window hole is opened, the thermal insulation connecting part can be arranged at the door and window hole and form an installation carrier of the door and window part, which helps to ensure the connection strength at the door and window hole, the waterproof performance and the durability. BRIEF DESCRIPTION OF DRAWINGS

[0013] The following drawings are only intended to illustrate and explain the present application and do not limit the scope of the present application. Among them:

[0014] Figure 1 is a structure schematic view of the thermal insulation connecting part of the first embodiment of the present application.

[0015] Figure 2 is a schematic view of A-A structure of Figure 1 ;

[0016] Figure 3 is a schematic view of structure at I of Figure 2 ;

[0017] Figure 4 is a schematic view of B-B structure of Figure 1 ;

[0018] Figure 5 is a schematic view of structure at II of Figure 4 ;

[0019] Figure 6 Figure 1 is a schematic view of C-C structure of

[0020] Figure 7 is a schematic view of sectional structure at door and window hole of the second embodiment of the present application;

[0021] Figure 8 is a schematic view of sectional structure at door and window hole of the third embodiment of the present application;

[0022] Figure 9 is a schematic view of sectional structure of the fourth embodiment of the present application;

[0023] Figure 10 is a schematic view of sectional structure of the fifth embodiment of the present application;

[0024] Figure 11 is a structural view of the existing prefabricated sandwich outer wall hanging plate;

[0025] Figure 12 is a schematic view of D-D structure of Figure 11 ;

[0026] In the figure: 1 - inner leaf wallboard; 11 - heat preservation groove; 12 - heat insulation cavity; 2 - outer leaf wallboard; 3 - heat insulation connecting piece; 31 - peripheral connecting piece; 32 - horizontal connecting piece; 33 - vertical connecting piece; 34 - door and window connecting piece; 35 - tie key; 36 - closed groove; 37 - mortar; 38 - filling part; 4 - heat preservation material; 5 - inner leaf tie nail; 6 - outer leaf tie nail; 7 - door and window hole; 71 - door and window piece; 9 - steel bar truss. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the drawings and embodiments. In the following detailed description, certain exemplary embodiments of the utility model are described by way of illustration only. It is needless to say that those skilled in the art can realize that the described embodiments can be modified in various ways without departing from the spirit and scope of the utility model. Therefore, the drawings and description are illustrative in nature and are not used to limit the protection scope of the claims.

[0028] Embodiment one: as Figures 1 to 6 As shown in the drawings, a prefabricated sandwich outer wall hanging plate is transported to the construction site after prefabrication and is hung on the building body for use, which comprises an inner leaf wall plate 1 and an outer leaf wall plate 2, a heat insulation connecting piece 3 is arranged between the inner leaf wall plate 1 and the outer leaf wall plate 2, the heat insulation connecting piece 3 is used as a structure with a certain hardness and heat insulation between the two wall plates and can be made of hardwood material, wood-plastic material or plastic profile.

[0029] As Figure 1 shown, the heat insulation connecting piece 3 comprises a peripheral connecting piece 31 located at the peripheral position of the inner leaf wall plate 1 and the outer leaf wall plate 2, at least one horizontal connecting piece 32 and at least one vertical connecting piece 33 are arranged in the peripheral connecting piece 31, of course, the horizontal connecting piece 32 and the vertical connecting piece 33 are arranged in cross, so that the heat insulation connecting piece 3 forms a frame structure as a whole.

[0030] Among them, the peripheral connecting piece 31 does not have to be a whole rectangular structure, but can be a structure that four connecting pieces jointly enclose a rectangle or approximately enclose a rectangle. Similarly, the horizontal connecting piece 32 or the vertical connecting piece 33 does not have to be a continuous whole, but can be a plurality of collinear connecting pieces forming the horizontal connecting piece 32 or the vertical connecting piece 33. On this basis, a plurality of connecting pieces that are not collinear constitute the horizontal connecting piece 32 or the vertical connecting piece 33, and the effect is equivalent, which is also within the protection scope of the utility model.

[0031] As Figures 1 to 6 shown, the cavity inside the heat insulation connecting piece 3 is filled with thermal insulation material 4, the arrangement of the peripheral connecting piece 31 can protect the internal thermal insulation material 4 from being damaged during transportation and installation, which is beneficial to guarantee the thermal insulation performance.

[0032] As Figures 2 to 6As shown, the thermal insulation connecting piece 3 is provided with a plurality of inner-leaf tie nailing 5 extending into the inner-leaf wallboard 1 and a plurality of outer-leaf tie nailing 6 extending into the outer-leaf wallboard 2, and the inner-leaf tie nailing 5 and the outer-leaf tie nailing 6 are arranged without contacting each other. Through the inner-leaf tie nailing 5 and the outer-leaf tie nailing 6, the tie strength between the thermal insulation connecting piece 3 and the inner-leaf wallboard 1 and the outer-leaf wallboard 2 is improved. Since the inner-leaf tie nailing 5 and the outer-leaf tie nailing 6 do not contact each other and cooperate with the thermal insulation of the thermal insulation connecting piece 3 itself, the generation of thermal bridge can be significantly reduced, which is beneficial to ensure the thermal insulation performance. The inner-leaf tie nailing 5 and the outer-leaf tie nailing 6 can be one or more of round head nails, U-shaped nails, L-shaped nails, etc., which are not limited herein, and the embodiment is only illustrated by using round head nails.

[0033] Preferably, as shown in Figure 6 As shown, the thermal insulation connecting piece 3 is integrally provided with a tie key 35 extending into the inner-leaf wallboard 1 and / or the outer-leaf wallboard 2. Thus, the tie strength and shear resistance between the inner-leaf wallboard 1 and / or the outer-leaf wallboard 2 and the thermal insulation connecting piece 3 can be further improved, and the overall strength of the embodiment is improved.

[0034] As shown in Figure 1 , Figure 2 and Figure 3 As shown, the inner-leaf wallboard 1 and the outer-leaf wallboard 2 are correspondingly provided with door and window openings 7, and the door and window openings 7 are used for fixedly mounting door and window pieces 71. The thermal insulation connecting piece 3 includes a door and window connecting piece 34 located at the periphery of the door and window opening 7. The door and window connecting piece 34 serves as a surrounding structure at the door and window opening 7 on one hand, which avoids damaging the internal thermal insulation material 4 during the installation of the door and window piece 71, and is also beneficial to ensure the thermal insulation performance. On the other hand, the door and window connecting piece 34 can serve as a carrier for the installation of the door and window piece 71, and the high hardness thereof can improve the connection strength of the door and window piece 71, the door and window are fixed reliably, and the waterproof performance and durability are also ensured.

[0035] In the embodiment, the thermal insulation connecting piece 3 is arranged between the inner-leaf wallboard 1 and the outer-leaf wallboard 2, and the high hardness thereof can form a surrounding effect at the periphery of the wallboard and the periphery of the door and window opening 7, which effectively avoids the damage of the internal thermal insulation material 4 during transportation and installation, and is beneficial to ensure the thermal insulation performance. The high hardness of the thermal insulation connecting piece 3 also makes it convenient to arrange tie screws without contacting each other thereon, which are used for tie connection with the inner-leaf wallboard 1 and the outer-leaf wallboard 2 respectively. The tie strength is improved, the generation of thermal bridge is significantly reduced, and the thermal insulation performance is ensured. In addition, at the door and window opening 7, the door and window connecting piece 34 in the thermal insulation connecting piece 3 can serve as a mounting carrier for the door and window piece 71. Compared with the thermal insulation material 4, the high hardness of the door and window connecting piece 34 can improve the connection strength of the door and window piece 71, the door and window are fixed reliably, and the waterproof performance and durability are also ensured.

[0036] Embodiment two: asFigure 7 The difference between the embodiment and the embodiment one is that the door and window piece 71 is arranged close to the outer leaf panel 2, and the outer side of the door and window connecting piece 34 is provided with a closed groove 36 close to the inner leaf panel 1, and the closed groove 36 is filled with mortar 37. By arranging the closed groove 36 and filling the mortar 37, the door and window connecting piece 34 is avoided from being exposed, and the door and window connecting piece 34 is protected. The embodiment is suitable for the case that the width of the door and window piece 71 is less than the width of the door and window connecting piece 34.

[0037] Embodiment three: as shown in the figure, Figure 8 The difference between the embodiment and the embodiment one is that the door and window piece 71 is arranged close to the outer leaf panel 2, and the outer side of the door and window connecting piece 34 is provided with a closed groove 36 close to the inner leaf panel 1, and the closed groove 36 is filled with mortar 37. By arranging the closed groove 36 and filling the mortar 37, the door and window connecting piece 34 is avoided from being exposed, and the door and window connecting piece 34 is protected. The embodiment is suitable for the case that the width of the door and window piece 71 is less than the width of the door and window connecting piece 34.

[0038] Embodiment four: as shown in the figure, Figure 9 The difference between the embodiment and the embodiment one is that the thickness of the thermal insulation material 4 is greater than the thickness of the heat insulation connecting piece 3, and the inner leaf panel 1 is provided with a thermal insulation groove 11 corresponding to the protruding part of the thermal insulation material 4. Therefore, the embodiment can realize a greater overall thickness, and is suitable for application in cold regions. Of course, the outer leaf panel 2 is provided with the thermal insulation groove 11, or the inner leaf panel 1 and the outer leaf panel 2 are both provided with the thermal insulation groove 11, which belongs to equivalent means transformation, and should also be within the protection scope of the utility model.

[0039] Embodiment five: as shown in the figure, Figure 10 The difference between the embodiment and the embodiment four is that the thermal insulation groove 11 and the thermal insulation material 4 are provided with a heat insulation cavity 12. By arranging the heat insulation cavity 12, the overall thickness of the scraper is improved, and the use of the thermal insulation material 4 is reduced. Therefore, the embodiment realizes better thermal insulation performance under the condition of realizing a greater overall thickness, and is suitable for application in relatively cold regions.

[0040] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A pre-fabricated sandwich external wall panel comprising an inner leaf panel and an outer leaf panel, characterised in that: The inner leaf wallboard and the outer leaf wallboard are clamped with a heat insulation connecting piece, the heat insulation connecting piece comprises a peripheral connecting piece located at the peripheral position of the inner leaf wallboard and the outer leaf wallboard, at least one horizontal connecting piece and at least one vertical connecting piece are arranged in the peripheral connecting piece, and a cavity in the inner side of the heat insulation connecting piece is filled with thermal insulation material; a plurality of inner leaf tie nails extending into the inner leaf wallboard and a plurality of outer leaf tie nails extending into the outer leaf wallboard are nailed on the heat insulation connecting piece, and the inner leaf tie nails and the outer leaf tie nails are arranged without contacting each other.

2. A pre-finished sandwich panel for external walls according to claim 1, characterized in that: Corresponding door and window openings are arranged on the inner leaf wallboard and the outer leaf wallboard, and door and window connecting pieces are arranged at the peripheral position of the door and window openings.

3. A pre-finished sandwich exterior wall panel according to claim 2, wherein: The door and window connecting pieces are arranged close to the outer leaf wallboard, and a closed groove is arranged on the outer side of the door and window connecting pieces close to the inner leaf wallboard, and the closed groove is filled with mortar.

4. A pre-finished sandwich exterior wall panel as claimed in claim 2, wherein: The door and window connecting pieces are arranged close to the outer leaf wallboard, and a closed groove is arranged on the outer side of the door and window connecting pieces close to the inner leaf wallboard, and the inner leaf wallboard is integrally provided with a filling part filled into the closed groove.

5. A pre-finished sandwich exterior wall panel as claimed in claim 1, wherein: The thickness of the thermal insulation material is greater than the thickness of the heat insulation connecting piece, and the inner leaf wallboard and / or the outer leaf wallboard is provided with a thermal insulation groove corresponding to the protruding part of the thermal insulation material.

6. A pre-finished sandwich external wall cladding panel according to claim 5, wherein: A heat insulation cavity is arranged between the thermal insulation groove and the thermal insulation material.

7. A pre-finished sandwich exterior wall panel as claimed in claim 1, wherein: The heat insulation connecting piece is integrally provided with a tie key extending into the inner leaf wallboard and / or the outer leaf wallboard.

8. A pre-finished sandwich panel for external wall cladding according to any one of claims 1 to 7, characterised in that: The heat insulation connecting piece is made of hardwood material, wood-plastic material or plastic profile.

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