Sandwich board and metal curtain wall

Abstract

According to the sandwich panel and the metal curtain wall, the sandwich panel comprises an inner metal plate, an outer metal plate and a sandwich layer located between the two metal plates, the metal plates wrap part of the left side face and the right side face of the sandwich layer, and a gap is formed between the edges of the inner metal plate and the outer metal plate located on the same side face of the sandwich layer. One of the left side and the right side of the laminboard is of a female buckle structure, the other side of the laminboard is of a male buckle structure matched with the female buckle structure, the male buckle structure is connected with the steel bar keel, and the male buckle structure is in limiting fit with the inner side of the female buckle structure so as to limit the position of the female buckle structure. In addition, adhesive is coated between the male buckle structure and the female buckle structure so as to strengthen connection and water resistance, so that the gap is not covered by the sandwich layer and is not wetted by liquid, and the effect of saving metal plate materials is achieved. Compared with the mode that the limiting fit is arranged in the center of the male buckle structure and the center of the female buckle structure, and the limiting fit position is covered with the metal plate, more metal plate materials are saved, and cost is low.

Description

Technical Field

[0001] The present application relates to the technical field of building materials, and in particular to sandwich panels and metal curtain walls. Background Art

[0002] Sandwich panels are usually composed of two metal plates and a sandwich layer sandwiched between the two metal plates. In order to ensure good waterproof performance and connection strength between two adjacent sandwich panels, the length of the two metal plates of the sandwich panel is longer than the length of the sandwich layer, so as to form a edging structure on the left and right sides of the sandwich layer. This not only strengthens the side strength but also prevents rainwater and other liquids from entering the sandwich layer through the joint after the two adjacent sandwich panels are joined, thereby preventing the sandwich layer from getting damp and affecting the thermal insulation effect.

[0003] However, usually the left and right sides of the sandwich layer are made into full edge wrapping, or in order to ensure the positioning of the side edges of two adjacent sandwich panels when they are butted together, the left and right sides of the sandwich layer are made into an interlocking structure. However, the shape of the interlocking is complex, resulting in a large amount of edge wrapping material required, thereby increasing the amount of metal plate used and increasing the manufacturing cost of the sandwich panel. Utility Model Content

[0004] In view of the above problems, embodiments of the present application are proposed. One purpose of the embodiments of the present application is to provide a sandwich panel that uses less metal plates, has low cost and can ensure butt-joint connectivity.

[0005] To achieve this goal, the present invention adopts the following technical solutions:

[0006] A sandwich panel comprising:

[0007] Two inner and outer metal plates and a sandwich layer located between the two metal plates;

[0008] The metal plate covers the left and right side surfaces of the sandwich layer;

[0009] There is a gap between the edges of the inner and outer metal plates on the same side of the sandwich layer;

[0010] One of the left and right sides of the sandwich panel is a female buckle structure, and the other side is a male buckle structure matching the female buckle structure;

[0011] The male buckle structure is connected to the steel keel, and the male buckle structure and the inner side of the female buckle structure have a limiting fit to limit the position of the female buckle structure.

[0012] Optionally, the inner side of the male buckle structure has a first limiting groove, and the outer side of the first limiting groove is connected to a second limiting protrusion;

[0013] The inner side of the female buckle structure has a first limiting protrusion, and the outer side surface of the first limiting protrusion is connected to the second limiting groove;

[0014] The first limiting protrusion matches the first limiting groove, and the second limiting protrusion matches the second limiting groove to form the limiting fit.

[0015] Optionally, the inner and outer side surfaces of the second limiting protrusion are inclined surfaces that are inclined toward each other with their heads approaching each other.

[0016] Optionally, the width of the second limiting groove is greater than the width of the groove bottom, and the groove walls on both sides of the second limiting groove are inclined surfaces.

[0017] Optionally, the bottom width of the second limiting groove is at least 1 mm greater than the width of the head of the second limiting protrusion;

[0018] The slope of the inner side wall of the second limiting groove is greater than or equal to the slope of the inner side surface of the second limiting protrusion;

[0019] The slope of the outer side wall of the second limiting groove is greater than or equal to the slope of the outer side surface of the second limiting protrusion.

[0020] Optionally, both the left and right edges of the metal plate located on the inner side have folded edges.

[0021] Optionally, the folded edge is a 180° folded edge toward the sandwich layer.

[0022] Optionally, a mounting recess is provided on the outer side of the male buckle structure, and a connector is mounted on the mounting recess to connect the male buckle structure to the steel keel;

[0023] An extension wall matching the mounting recess is provided on the outer side of the female buckle structure, and the extension wall matches the mounting recess to form an accommodating space for accommodating the head of the connector.

[0024] Optionally, a decorative slot is provided on a side of the mounting recess facing away from the female buckle structure.

[0025] Another object of the embodiments of the present application is to provide a metal curtain wall that uses less metal plates, has low cost and is structurally reliable.

[0026] To achieve this goal, the present invention adopts the following technical solutions:

[0027] A curtain wall comprises a steel keel and a plurality of sandwich panels arranged in sequence and covering the outer surface of the steel keel;

[0028] The sandwich panel is the sandwich panel mentioned above.

[0029] The technical solution provided by the embodiment of the present application, by arranging the stopper on the inner side of the matching male and female buckle structures, is covered by the metal plate, which further saves metal sheet material compared to the method of arranging the stopper in the center. As a result, the left and right sides of the sandwich layer do not need to be completely covered by the metal plate, and the center of the sandwich layer can be left uncovered. Adhesive is applied between the male and female buckle structures to strengthen the connection and waterproof, so that the gap does not need to be covered and the sandwich layer will not be wetted by liquids. This achieves the effect of saving metal sheet material while ensuring the connection performance of the male and female buckle structures, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 A schematic structural diagram of a sandwich panel provided in one embodiment of the present application;

[0032] Figure 2 A schematic diagram of the structure of the male buckle structure and the female buckle structure provided in one embodiment of the present application.

[0033] In the picture:

[0034] 100, sandwich panel; 200, connector;

[0035] 1. Metal plate; 2. Sandwich layer;

[0036] 10. Male buckle structure; 11. First limiting groove; 12. Second limiting protrusion; 13. Mounting concave platform; 14. Decorative seam; 15. Positioning protrusion; 16. Positioning groove;

[0037] 20. Female buckle structure; 21. First limiting protrusion; 22. Second limiting groove; 23. Extension wall; 24. Positioning step; 25. Folding edge. DETAILED DESCRIPTION

[0038] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present application and are not intended to limit the present application. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions of the present application, not all of the structures.

[0039] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0042] This embodiment provides a curtain wall comprising a steel keel and a plurality of sandwich panels 100 arranged in sequence and covering the outer surface of the steel keel. The steel keel provides mounting support for the sandwich panels 100, ensuring the overall strength of the curtain wall. The sandwich panels 100 are connected to the steel keel via connectors 200, which can be screws. The screws pass through the sandwich panels 100 and are screwed onto the steel keel to secure the sandwich panels 100 to the steel keel.

[0043] The sandwich panel 100 not only has good thermal insulation performance, but also makes the curtain wall more beautiful. Figure 1As shown, the sandwich panel 100 includes two inner and outer metal plates 1 and a sandwich layer 2 located between the two metal plates 1. The metal plates 1 cover part of the left and right side surfaces of the sandwich layer 2. When the two side surfaces of two adjacent sandwich panels 100 in the left and right directions are butted together, adhesive is applied in the middle to ensure good connectivity. Wrapping the side surfaces of the sandwich panels 100 with metal can prevent the adhesive from failing over time, and prevent liquids from flowing into the gap between the two adjacent sandwich panels 100 and affecting the function of the sandwich layer 2.

[0044] In some embodiments of this application, please refer to Figures 1 and 2 As shown, one of the left and right sides of the sandwich panel 100 is a female buckle structure 20, and the other side is a male buckle structure 10 that matches the female buckle structure 20. The connecting member 200 is installed at the male buckle structure 10. The male buckle structure 10 can limit the position of the female buckle structure 20 and prevent the female buckle structure 20 from shifting, thereby ensuring the overall aesthetics of the curtain wall.

[0045] The male buckle structure 10 will have a limit fit in the center that cooperates with the female buckle structure 20 to limit the movement of the female buckle structure 20 in the inward and outward directions. In order to ensure the structural strength of the limit fit, the metal plate 1 will usually completely cover the male buckle structure 10 and the female buckle structure 20, resulting in a relatively large amount of material used in the metal plate 1 and high cost.

[0046] To reduce the material consumption of the metal plates 1 and thus lower costs, while also ensuring the required strength at the stopper joint, in some embodiments of the present application, a male snap structure 10 is connected to the steel keel. The male snap structure 10 and the inner side of the female snap structure 20 have a stopper joint to restrict the position of the female snap structure 20, leaving a gap between the edges of the inner and outer metal plates 1 on the same side of the sandwich layer 2. Positioning the stopper joint from the center of the side of the sandwich panel 100 to the inner side allows the stopper joint to be closer to the metal plates 1, thereby requiring less metal plate 1 material to cover the stopper joint. Since adhesive is required to be applied between the male snap structure 10 and the female snap structure 20 when two adjacent sandwich panels 100 are joined, even if the metal plates 1 do not fully cover the sides of the sandwich layer 2, the adhesive's waterproof properties prevent the sandwich layer 2 from being affected by liquids. Even if the adhesive loses its adhesive properties over time, the outer sides of the male and female buckle structures 10 and 20 are covered by the metal plate 1. Therefore, even if a portion of the adhesive on the outer sides fails, as long as the adhesive covering the metal plate 1 remains intact, liquid can be prevented from entering the gap. This reduces the amount of metal plate 1 used, thereby reducing costs.

[0047] In some embodiments of this application, please refer to Figures 1 and 2As shown, the inner side of the male buckle structure 10 has a first limiting groove 11, and the outer groove wall of the first limiting groove 11 is connected to the second limiting protrusion 12. In other words, the outer groove wall of the first limiting groove serves as the inner side surface of the second limiting protrusion 12. The inner side of the female buckle structure 20 has a first limiting protrusion 21, and the outer side surface of the first limiting protrusion 21 is connected to the second limiting groove 22. In other words, the outer side surface of the first limiting protrusion 21 serves as the inner groove wall of the second limiting groove 22. The first limiting protrusion 21 mates with the first limiting groove 11, and the second limiting protrusion 12 mates with the second limiting groove 22 to form a limiting fit. The second limiting protrusion 12 and the second limiting groove 22 can limit the position of the female buckle structure 20 in the inward and outward directions, resulting in a simple structure. When installing the sandwich panel 100, the female buckle structure 20 is aligned with the male buckle structure 10 of the upstream sandwich panel 100, the first limiting protrusion 21 is inserted into the first limiting groove, and the second limiting protrusion 12 is inserted into the second limiting groove, which is convenient for assembly.

[0048] In some embodiments of this application, please refer to Figures 1 and 2 As shown, the inner and outer side surfaces of the second limiting protrusion 12 are inclined surfaces that are inclined toward each other with their heads close to each other. The inclined surfaces act as guide surfaces, which can make it easier for the second limiting protrusion 12 to enter the second limiting groove 22. As an alternative, the groove width of the second limiting groove 22 is greater than the groove bottom width, and the groove walls on both sides of the second limiting groove 22 are inclined surfaces, so that the shape of the second limiting groove 22 matches the shape of the second limiting protrusion 12, thereby making it easier for the first limiting protrusion 21 to be inserted into the first limiting groove 11 and the second limiting protrusion 12 to be inserted into the second limiting groove 22.

[0049] Further, in some embodiments of this application, please refer to Figures 1 and 2 As shown, the bottom width of the second limiting groove 22 is at least 1 mm greater than the width of the head of the first limiting protrusion 21. The slope of the inner sidewall of the second limiting groove 22 is greater than or equal to the slope of the inner side surface of the second limiting protrusion 12, and the slope of the outer sidewall of the second limiting groove 22 is greater than or equal to the slope of the outer side surface of the second limiting protrusion 12. As a result, the size of the second limiting groove 22 is slightly larger than the size of the first limiting protrusion 21, making it easier for the second limiting protrusion 12 to enter the second limiting groove 22 and avoiding friction when the second limiting protrusion 12 enters the second limiting groove 22, which increases the resistance of the second limiting protrusion 12 to enter the second limiting groove 22.

[0050] Since the strength of the edge of the metal plate 1 is not high, in order to ensure the structural strength of the limit fit, in some embodiments of the present application, please refer to Figures 1 and 2 As shown, the left and right edges of the metal plate 1 located on the inner side have folded edges 25, that is, the edges of the metal covering the inner side of the male buckle structure 10 and the female buckle structure 20 have folded edges 25 to enhance the strength of the edges.

[0051] For further information, please refer to Figures 1 and 2 As shown, the folded edge 25 is a 180° folded edge 25 facing the sandwich layer 2 , which can not only achieve structural reinforcement but also avoid interference with the sandwich layer 2 .

[0052] To ensure the reliability of the connection, please refer to Figures 1 and 2 As shown, the connector 200 of the present application passes through the male buckle structure 10 from the outside, but the head of the connector 200 is exposed to the outside of the curtain wall, which is not only unsightly, but also corroded by the influence of air. Therefore, in some embodiments of the present application, a mounting recess 13 is provided on the outside of the male buckle structure 10, and the head of the connector 200 abuts against the recessed surface of the mounting recess 13. The rod of the connector 200 passes through the male buckle structure 10 and is screwed on the steel keel to connect the male buckle structure to the steel keel. An extension wall 23 matching the mounting recess 13 is provided on the outside of the female buckle structure. The extension wall 23 matches the mounting recess 13 to form an accommodating space for the head of the connector 200 to isolate the head of the connector 200 from the outside, thereby not only avoiding the leakage of the head of the connector 200 to affect the overall aesthetics of the curtain wall, but also avoiding the connector 200 from being corroded by the air.

[0053] In order to ensure the overall aesthetics of the curtain wall, some curtain walls may have some longitudinal decorative seams. In some embodiments of this application, please refer to Figures 1 and 2 As shown, a mounting groove is provided on the side of the mounting recess 13 away from the female buckle structure 20. The width of the decorative groove 14 can be 10 mm or 20 mm. The width of the decorative groove needs to be customized according to customer needs.

[0054] Please refer to Figures 1 and 2 As shown, a positioning boss 15 is provided between the decorative groove and the mounting recess 13. The extension wall 23 overlaps the positioning boss 15 and aligns with the boss wall of the positioning boss 15 located at the decorative groove, thereby positioning the extension wall 23 and preventing it from covering the decorative groove. A positioning step 24 is provided on the side of the extension wall 23 facing away from the decorative groove. The left and right side surfaces of the mounting head respectively abut the positioning boss 15 and the positioning step 24. The inner side surface of the positioning step 24 abuts the concave surface of the mounting recess 13. This not only increases the contact area between the male and female buckle structures 10 and 20, thereby increasing the amount of glue applied between the male and female buckle structures 10 and 20 and improving the connection strength, but also the accommodation space shields the inner side surface of the positioning step 24 from the outside world, preventing foreign air from affecting the adhesive bond between the inner side surface of the positioning step 24 and the concave surface of the mounting recess 13, thereby preventing the adhesive from being affected and failing, ensuring good connection and waterproofness.

[0055] In order to ensure the accuracy of the installation of the connector 200, in some embodiments of the present application, please refer to Figures 1 and 2 As shown, a positioning groove 16 is provided on the surface of the mounting recess 13 , and the end of the connecting member 200 passes through the male buckle structure 10 from the positioning groove 16 .

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sandwich panel, characterized in that: include: Two inner and outer metal plates and a sandwich layer located between the two metal plates; The metal plate covers the left and right side surfaces of the sandwich layer; There is a gap between the edges of the inner and outer metal plates on the same side of the sandwich layer; One of the left and right sides of the sandwich panel is a female buckle structure, and the other side is a male buckle structure matching the female buckle structure; The male buckle structure is connected to the steel keel, and the male buckle structure and the inner side of the female buckle structure have a limiting fit to limit the position of the female buckle structure.

2. The sandwich panel according to claim 1, characterized in that The inner side of the male buckle structure has a first limiting groove, and the outer groove wall of the first limiting groove is connected to a second limiting protrusion; The inner side of the female buckle structure has a first limiting protrusion, and the outer side surface of the first limiting protrusion is connected to the second limiting groove; The first limiting protrusion matches the first limiting groove, and the second limiting protrusion matches the second limiting groove to form the limiting fit.

3. The sandwich panel according to claim 2, characterized in that The inner and outer side surfaces of the second limiting protrusion are inclined surfaces that are inclined toward each other with their heads close to each other.

4. The sandwich panel according to claim 3, characterized in that The width of the second limiting groove is greater than the width of the groove bottom, and the groove walls on both sides of the second limiting groove are inclined surfaces.

5. The sandwich panel according to claim 4, characterized in that The bottom width of the second limiting groove is at least 1 mm greater than the width of the head of the second limiting protrusion; The slope of the inner side wall of the second limiting groove is greater than or equal to the slope of the inner side surface of the second limiting protrusion; The slope of the outer side wall of the second limiting groove is greater than or equal to the slope of the outer side surface of the second limiting protrusion.

6. The sandwich panel according to claim 1, characterized in that The left and right edges of the metal plate located on the inner side are both provided with folded edges.

7. The sandwich panel according to claim 6, characterized in that The folded edge is a 180° folded edge toward the sandwich layer.

8. The sandwich panel according to claim 1, wherein: A mounting recess is provided on the outer side of the male buckle structure, and a connector is mounted on the mounting recess to connect the male buckle structure to the steel keel; An extension wall matching the mounting recess is provided on the outer side of the female buckle structure, and the extension wall matches the mounting recess to form an accommodating space for accommodating the head of the connector.

9. The sandwich panel according to claim 8, characterized in that A decorative slot is provided on a side of the mounting recess facing away from the female buckle structure.

10. A curtain wall, characterized in that: It includes a steel keel and a plurality of sandwich panels arranged in sequence and covering the outer surface of the steel keel; The sandwich panel is the sandwich panel according to any one of claims 1 to 9.

Images