Double-layer cotton fireproof heat-preservation sandwich panel

Abstract

The invention relates to the technical field of laminboards, and discloses a double-layer cotton fireproof heat preservation laminboard which comprises a laminboard body, and a connecting assembly is arranged on one side of the laminboard body; the sandwich board body comprises a core material layer, a plurality of protruding blocks are fixed to the two sides of the core material layer, heat preservation layers are arranged on the two sides of the core material layer, and a plurality of grooves are formed in one side of each heat preservation layer. The second sliding grooves are formed in the four corners of the core material layer, the protruding blocks are fixed to the two sides of the core material layer, the grooves are formed in one side of the heat preservation layer, the protruding blocks are matched with the inner sides of the grooves, and the protruding blocks and the grooves are bonded through the polyurethane adhesive, so that the connection strength between the core material layer and the heat preservation layer is improved, and it is guaranteed that the core material layer and the heat preservation layer are not prone to being separated in the long-term use process; second sliding grooves are formed in the four corners of the core material layer, first sliding grooves are formed in the four corners of the heat preservation layer, the connecting rods are inserted into the inner sides of the second sliding grooves and the first sliding grooves, the core material layer and the heat preservation layer are further fixed, and the structural stability of the laminboard body is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of sandwich panels, in particular to a double-layer cotton fireproof and heat-insulating sandwich panel. Background Art

[0002] Sandwich panels are a common building material, often used in large industrial plants, warehouses, gymnasiums, prefabricated buildings, building additions, cleanrooms, and other locations. They combine load-bearing, thermal insulation, fire resistance, and waterproofing, eliminating the need for secondary renovations and embodying the principles of civilized construction on modern construction sites. They offer significant advantages in rapid installation and commissioning, detachable design, and material reusability, significantly reducing the cost of temporary facilities on construction sites.

[0003] In the construction industry, sandwich panels are a common building material, widely used in walls, roofs, and other areas of various buildings. Sandwich panels typically consist of a face sheet and a core material layer, and their performance directly impacts the overall quality and performance of a building.

[0004] The existing sandwich panels on the market currently have many problems; in terms of the internal structure of the sandwich panels, the connection strength between the core material layer and the insulation layer is insufficient; in the existing sandwich panels, the core material layer and the insulation layer are often simply bonded by ordinary adhesives. During long-term use, due to the influence of external environmental factors, the performance of the adhesive may gradually decline, resulting in easy separation between the core material layer and the insulation layer, thereby affecting the overall structural stability of the sandwich panels; in addition, in terms of the fire resistance of the sandwich panels, the existing sandwich panels mostly use ordinary panel materials, which have poor fire resistance. Once a fire occurs, the fire can spread rapidly, posing a serious safety hazard to the building. At the same time, the gap sealing effect between adjacent sandwich panels is poor, and moisture can easily penetrate into the interior of the sandwich panels, which will not only reduce the insulation performance of the sandwich panels, but also damage the core material layer and the insulation layer inside the sandwich panels, shortening the service life of the sandwich panels. For this reason, a double-layer cotton fireproof and heat-insulating sandwich panel is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a double-layer cotton fireproof and heat-insulating sandwich panel to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a double-layer cotton fireproof and heat-insulating sandwich panel, comprising a sandwich panel body, wherein one side of the sandwich panel body is provided with a connecting assembly; The sandwich panel body includes a core material layer, a plurality of protrusions are fixed on both sides of the core material layer, a heat-insulating layer is provided on both sides of the core material layer, and a plurality of grooves are opened on one side of the heat-insulating layer; The four corners of the core material layer are each provided with a second chute, and the four corners of the insulation layer are each provided with a first chute; Connecting rods are inserted into the inner sides of the first and second chutes, and panel layers are bonded to the outer sides of the core material layer and the insulation layer; The connecting assembly includes a connecting plate and a vertical plate. A second through hole is opened on one side of the vertical plate, a first through hole is opened on one side of the connecting plate, and a sealing ring is bonded to one end of the vertical plate.

[0007] Preferably, the core material layer is made of polyurethane foam board, and the insulation layer is made of ceramic fiber cotton; The protrusion is adapted to the inner side of the groove, and the core material layer and the thermal insulation layer are bonded and connected.

[0008] Preferably, the panel layer and the connecting rod are both made of metal, and the thickness of the panel layer is 0.6mm-1mm.

[0009] Preferably, a limiting groove is provided on one side of the sandwich panel body, and a plurality of connecting grooves are provided on the inner wall of the limiting groove.

[0010] Preferably, a cover plate is hingedly connected to the inner wall of the connection groove, and the cover plate is magnetically connected to one side of the sandwich panel body through a magnet.

[0011] Preferably, as mentioned above, an insertion rod is inserted into the inner side of the first through hole and the second through hole. When the insertion rod is located in the first through hole and the second through hole and the sealing ring is attached to one side of the sandwich panel body, the adjacent sandwich panel bodies are in a connected state.

[0012] Preferably, a handle is fixed to one end of the insertion rod, and the handle is located on the inner side of the connecting groove. The number of the vertical plate and the second through hole are both two, and one of the second through holes is threadedly connected to the outer side of the insertion rod.

[0013] Preferably, as mentioned above, the connecting plate is fixed to one side of the sandwich panel body, and the connecting plate and the limiting groove are respectively arranged on both sides of the sandwich panel body.

[0014] Preferably, as mentioned above, the number of the vertical plates is two, and the vertical plates are fixed to the inner side walls of the limiting grooves.

[0015] Preferably, as mentioned above, an air cavity is provided inside the sealing ring, and the air cavity is used to enhance the sealing effect, and the connecting plate is adapted to the gap between the two vertical plates.

[0016] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects: The core layer is secured with protrusions on both sides, while the insulation layer is provided with grooves on one side. The protrusions fit into the grooves and are bonded together with a polyurethane adhesive, increasing the strength of the connection between the core and insulation layers, ensuring they remain stable during long-term use. Secondary grooves are provided at the four corners of the core layer, while primary grooves are provided at the four corners of the insulation layer. Connecting rods are inserted into the second and primary grooves, further securing the core and insulation layers and enhancing the structural stability of the sandwich panel. A metal faceplate is bonded to the outside of the core and insulation layers. This metal faceplate not only provides excellent structural strength, enabling the sandwich panel to withstand significant pressure and impact, but also offers excellent fire resistance, effectively preventing the spread of fire and improving building safety.

[0017] By inserting the connecting plate into the limiting groove of the other sandwich panel body, the connecting plate is located between the two vertical plates, the cover plate is opened, and the insertion rod is aligned with the second through hole and the first through hole and inserted, so that the insertion rod is threadedly connected to the second through hole, thereby ensuring that the connection between the adjacent sandwich panel bodies is firm and not easy to loosen or fall off, thereby enhancing the overall stability of the sandwich panel wall, and the sealing ring is squeezed when the insertion rod is threadedly connected to the second through hole and the first through hole, thereby sealing the gap between the adjacent sandwich panel bodies, preventing moisture penetration, improving the thermal insulation performance of the sandwich panel body, and also protecting the core material layer and the thermal insulation layer inside the sandwich panel body from the influence of the humid environment, thereby extending the service life of the sandwich panel body.

[0018] When it is necessary to disassemble the sandwich panel bodies connected together, it is only necessary to open the cover plate, turn the handle to drive the insertion rod to leave the inner sides of the first through hole and the second through hole, and the adjacent sandwich panel bodies can be easily disassembled, making the disassembly and connection of the sandwich panel bodies very simple and quick, and convenient for adjustment or replacement according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention from a first perspective; Figure 2 This is a schematic diagram of the structure from a second viewing angle of the present invention; Figure 3 This is a schematic diagram of the main cross-sectional structure of the sandwich panel body of the present invention; Figure 4 This is a schematic diagram of a top-down cross-sectional structure of a connecting assembly of the present invention; Figure 5 This is a structural diagram of the cover plate of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point A in the middle.

[0021] Explanation of the accompanying drawings: 1. Sandwich panel body; 11. Core material layer; 12. Connecting rod; 13. Protrusion; 14. Insulation layer; 15. Panel layer; 16. Groove; 17. First slide groove; 18. Second slide groove; 2. Connecting assembly; 21. Connecting plate; 22. First through hole; 23. Handle; 24. Insert rod; 25. Sealing ring; 26. Limiting groove; 27. Second through hole; 28. Vertical plate; 3. Cover plate; 4. Connecting groove. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application. Example

[0024] See also Figure 1-6 The present invention provides a technical solution: a double-layer cotton fireproof and heat-insulating sandwich panel, comprising a sandwich panel body 1, a connecting component 2 is provided on one side of the sandwich panel body 1; the sandwich panel body 1 comprises a core material layer 11, a plurality of protrusions 13 are fixed on both sides of the core material layer 11, a heat-insulating layer 14 is provided on both sides of the core material layer 11, and a plurality of grooves 16 are provided on one side of the heat-insulating layer 14; a second slide groove 18 is provided at the four corners of the core material layer 11, and a first slide groove 17 is provided at the four corners of the heat-insulating layer 14. During production, polyurethane adhesive is first applied to the surface of the core material layer 11 and the heat-insulating layer 14, and then the connecting rod 12 is inserted into the second slide groove 18 and the inner side of the first slide groove 17, and finally the panel layer 15 is bonded around the outside.

[0025] A connecting rod 12 is inserted into the inner side of the first slide groove 17 and the second slide groove 18. The double slide grooves of the first slide groove 17 and the second slide groove 18 realize double limitation in the vertical direction. The panel layer 15 is bonded to the outer side of the core layer 11 and the insulation layer 14; the material of the core layer 11 is polyurethane foam board, and the core layer 11 uses polyurethane foam board, and its closed-cell structure is used to achieve Class A fire protection and low thermal conductivity. The material of the insulation layer 14 is ceramic fiber cotton, and the ceramic fiber cotton forms a second insulation barrier through its 1200°C temperature resistance and 0.045W / (m·K) low thermal conductivity; the protrusion 13 is adapted to the inner side of the groove 16, and the protrusion 13 and the groove 16 ensure interlayer positioning, and the core layer 11 and the insulation layer 14 are bonded and connected by polyurethane adhesive. The panel layer 15 and the connecting rod 12 are both made of metal, and the thickness of the panel layer 15 is 0.6mm-1mm.

[0026] The connecting assembly 2 includes a connecting plate 21 and a vertical plate 28. A second through hole 27 is opened on one side of the vertical plate 28, and a first through hole 22 is opened on one side of the connecting plate 21. A sealing ring 25 is bonded to one end of the vertical plate 28. The sealing ring 25 is made of high-temperature resistant silicone rubber. A limiting groove 26 is opened on one side of the sandwich panel body 1. The inner wall of the limiting groove 26 is provided with a plurality of connecting grooves 4, and the inner wall of the connecting groove 4 is sprayed with an anti-corrosion coating.

[0027] A cover plate 3 is hinged on the inner wall of the connecting groove 4. The cover plate 3 is magnetically connected to one side of the sandwich panel body 1 through a magnet. The connecting groove 4 can be easily opened or closed to protect the internal structure from the influence of the external environment. The cover plate 3 is realized by an N35 neodymium iron boron magnet.

[0028] An insertion rod 24 is inserted into the inner side of the first through hole 22 and the second through hole 27. When the insertion rod 24 is located in the first through hole 22 and the second through hole 27, and the sealing ring 25 is attached to one side of the sandwich panel body 1, the adjacent sandwich panel bodies 1 are in a connected state, and the insertion rod 24 is threadedly connected to one of the second through holes 27, and the pre-tightening force of the handle 23 is combined to make the gap between adjacent panels ≤0.3mm. The number of vertical plates 28 and second through holes 27 are both two, and one of the second through holes 27 is threadedly connected to the outer side of the insertion rod 24.

[0029] A handle 23 is fixed to one end of the insertion rod 24, and the handle 23 is located on the inner side of the connecting groove 4. After one end of the adjacent sandwich panel bodies 1 are fitted together, it is only necessary to open the cover plate 3, align the insertion rod 24 with the second through hole 27 and the first through hole 22 and rotate it so that the insertion rod 24 is threadedly connected to the second through hole 27. At this time, the sealing ring 25 is squeezed, and the sealing ring 25 seals the gap between the adjacent sandwich panel bodies 1 to prevent moisture penetration.

[0030] The connecting plate 21 is fixed to one side of the sandwich panel body 1, and the connecting plate 21 and the limiting groove 26 are respectively arranged on both sides of the sandwich panel body 1. There are two vertical plates 28, and the vertical plates 28 are fixed to the inner side wall of the limiting groove 26. An air cavity is provided on the inner side of the sealing ring 25, and the connecting plate 21 is adapted to the gap between the two vertical plates 28.

[0031] Working principle: The sandwich panel body 1 consists of a core layer 11, an insulation layer 14 and a panel layer 15. Bumps 13 are fixed on both sides of the core layer 11, and a groove 16 is provided on one side of the insulation layer 14. The bumps 13 fit inside the groove 16 and are bonded with a polyurethane adhesive to increase the connection strength between the core layer 11 and the insulation layer 14. Second chutes 18 are provided at the four corners of the core layer 11, and first chutes 17 are provided at the four corners of the insulation layer 14. Connecting rods 12 are inserted inside the second chutes 18 and the first chutes 17 to further fix the core layer 11 and the insulation layer 14. The panel layer 15 is bonded to the outside of the core layer 11 and the insulation layer 14. The panel layer 15 is made of metal to provide structural strength and fire resistance. When connecting adjacent sandwich panel bodies 1, the connecting plate 21 is inserted into the limiting groove 26 of the other sandwich panel body 1 so that the connecting plate 21 is located between the two vertical plates 28. The cover plate 3 is opened, and the insertion rod 24 is aligned with the second through hole 27 and the first through hole 22 and inserted so that the insertion rod 24 is threadedly connected with the second through hole 27. The sealing ring 25 is squeezed to seal the gap between the adjacent sandwich panel bodies 1, thereby preventing moisture penetration and improving thermal insulation performance. A limiting groove 26 is provided on one side of the sandwich panel body 1, and a plurality of connecting grooves 4 are provided on the inner wall of the limiting groove 26. A cover plate 3 is hinged on the inner wall of the connecting groove 4. The cover plate 3 is magnetically connected to one side of the sandwich panel body 1 through a magnet. The cover plate 3 can easily open or close the connecting groove 4 to protect the internal structure such as the insertion rod 24 and the handle 23 from being affected by the external environment.

[0032] When the sandwich panel bodies 1 connected together need to be disassembled, it is only necessary to open the cover plate 3, turn the handle 23 to drive the insertion rod 24 out of the first through hole 22 and the second through hole 27, and follow these steps in sequence to disassemble the adjacent sandwich panel bodies 1.

[0033] In summary, protrusions 13 are fixed on both sides of the core layer 11, and a groove 16 is provided on one side of the insulation layer 14. The protrusions 13 fit into the inner side of the groove 16 and are bonded by polyurethane adhesive, thereby increasing the connection strength between the core layer 11 and the insulation layer 14, ensuring that the two are not easily separated during long-term use. Second slide grooves 18 are provided at the four corners of the core layer 11, and first slide grooves 17 are provided at the four corners of the insulation layer 14. The connecting rods 12 are inserted into the inner side of the second slide grooves 18 and the first slide grooves 17, further fixing the core layer 11 and the insulation layer 14, and enhancing the structural stability of the sandwich panel body 1. The outer side of the core layer 11 and the insulation layer 14 is bonded with a panel layer 15, and the panel layer 15 is made of metal. The metal panel layer 15 not only provides good structural strength, enabling the sandwich panel body 1 to withstand greater pressure and impact, but also has excellent fire resistance, effectively preventing the spread of fire and improving the safety of the building.

[0034] By inserting the connecting plate 21 into the limiting groove 26 of another sandwich panel body 1, the connecting plate 21 is located between the two vertical plates 28, the cover plate 3 is opened, and the insertion rod 24 is aligned with the second through hole 27 and the first through hole 22 and inserted, so that the insertion rod 24 is threadedly connected to the second through hole 27, ensuring that the connection between adjacent sandwich panel bodies 1 is firm and not easy to loosen or fall off, thereby enhancing the overall stability of the sandwich panel wall, and the sealing ring 25 is squeezed when the insertion rod 24 is threadedly connected to the second through hole 27 and the first through hole 22, thereby sealing the gap between adjacent sandwich panel bodies 1, preventing moisture penetration, and improving the thermal insulation performance of the sandwich panel body 1. At the same time, it also protects the core material layer 11 and the thermal insulation layer 14 inside the sandwich panel body 1 from the influence of the humid environment, thereby extending the service life of the sandwich panel body 1.

[0035] When it is necessary to disassemble the sandwich panel bodies 1 connected together, it is only necessary to open the cover plate 3, turn the handle 23 to drive the insertion rod 24 to leave the inside of the first through hole 22 and the second through hole 27, and then the adjacent sandwich panel bodies 1 can be easily disassembled, making the disassembly and connection of the sandwich panel bodies 1 very simple and quick, and convenient for adjustment or replacement according to actual needs.

[0036] Those skilled in the art will appreciate that various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be made, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be made, without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A double-layer cotton fireproof and heat-insulating sandwich panel, comprising a sandwich panel body (1), characterized in that: A connection assembly (2) is provided on one side of the sandwich panel body (1); The sandwich panel body (1) comprises a core material layer (11), a plurality of protrusions (13) are fixed on both sides of the core material layer (11), a heat-insulating layer (14) is provided on both sides of the core material layer (11), and a plurality of grooves (16) are provided on one side of the heat-insulating layer (14); Second chutes (18) are provided at the four corners of the core material layer (11), and first chutes (17) are provided at the four corners of the thermal insulation layer (14); A connecting rod (12) is inserted into the inner side of the first chute (17) and the second chute (18), and a panel layer (15) is bonded to the outer side of the core material layer (11) and the insulation layer (14); The connecting assembly (2) comprises a connecting plate (21) and a vertical plate (28), wherein a second through hole (27) is provided on one side of the vertical plate (28), a first through hole (22) is provided on one side of the connecting plate (21), and a sealing ring (25) is bonded to one end of the vertical plate (28).

2. A double-layer cotton fireproof and heat-insulating sandwich panel according to claim 1, characterized in that: The core material layer (11) is made of polyurethane foam board, and the insulation layer (14) is made of ceramic fiber cotton; The protrusion (13) is adapted to the inner side of the groove (16), and the core material layer (11) and the thermal insulation layer (14) are bonded and connected.

3. The double-layer cotton fireproof and heat-insulating sandwich panel according to claim 1, characterized in that: The panel layer (15) and the connecting rod (12) are both made of metal, and the thickness of the panel layer (15) is 0.6 mm to 1 mm.

4. The double-layer cotton fireproof and heat-insulating sandwich panel according to claim 1, characterized in that: A limiting groove (26) is provided on one side of the sandwich panel body (1), and a plurality of connecting grooves (4) are provided on the inner wall of the limiting groove (26).

5. The double-layer cotton fireproof and heat-insulating sandwich panel according to claim 4, characterized in that: A cover plate (3) is hingedly connected to the inner wall of the connection groove (4), and the cover plate (3) is magnetically connected to one side of the sandwich panel body (1) via a magnet.

6. The double-layer cotton fireproof and heat-insulating sandwich panel according to claim 5, characterized in that: An insertion rod (24) is inserted into the inner side of the first through hole (22) and the second through hole (27). When the insertion rod (24) is located in the first through hole (22) and the second through hole (27), and the sealing ring (25) is attached to one side of the sandwich panel body (1), the adjacent sandwich panel bodies (1) are in a connected state.

7. The double-layer cotton fireproof and heat-insulating sandwich panel according to claim 6, characterized in that: A handle (23) is fixed to one end of the insertion rod (24), and the handle (23) is located inside the connection groove (4). The number of the vertical plate (28) and the number of the second through holes (27) are both two, and one of the second through holes (27) is threadedly connected to the outside of the insertion rod (24).

8. The double-layer cotton fireproof and heat-insulating sandwich panel according to claim 1, characterized in that: The connecting plate (21) is fixed to one side of the sandwich panel body (1), and the connecting plate (21) and the limiting groove (26) are respectively arranged on two sides of the sandwich panel body (1).

9. The double-layer cotton fireproof and heat-insulating sandwich panel according to claim 1, characterized in that: There are two vertical plates (28), and the vertical plates (28) are fixed to the inner side wall of the limiting groove (26).

10. The double-layer cotton fireproof and heat-insulating sandwich panel according to claim 9, characterized in that: An air cavity is provided inside the sealing ring (25), and the air cavity is used to enhance the sealing effect. The connecting plate (21) is adapted to fit in the gap between the two vertical plates (28).

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