Polyurethane board with improved compressive strength

Abstract

The utility model provides a kind of polyurethane board of improving compressive strength belongs to polyurethane board technical field.Its structure includes: top reinforcing metal sheet and bottom reinforcing metal sheet are respectively attached on the top surface and bottom surface of metal plate shell, metal end sealing plate is equipped in the end of metal plate shell, metal end sealing plate is fastened connection with top reinforcing metal sheet and bottom reinforcing metal sheet by several screws, first polyurethane core board is filled in the inside of metal plate shell, several anchor rods that are connected between top reinforcing metal sheet and bottom reinforcing metal sheet and pass through metal plate shell and first polyurethane core board are connected, several longitudinal metal sheets and several transverse metal sheets are embedded in the inside of first polyurethane core board.The utility model uses anchor rod and metal end sealing plate to ensure the longitudinal support strength of board, and embeds the metal sheet in two directions of transverse and longitudinal in polyurethane core material, further ensure the compressive strength.The utility model improves compressive strength significantly, effectively avoids board deformation problem.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane board technology, specifically to a polyurethane board with improved compressive strength. Background Technology

[0002] Polyurethane (PU) boards are made using polyurethane (PU) as the core insulation material through a composite process, resulting in excellent thermal insulation performance and physical properties. A typical structure of PU boards uses polyurethane foam as the core material, with metal panels (such as color steel plates) or decorative surface layers such as calcium silicate boards or ceramic thin plates attached to both sides. The metal panels and the polyurethane core material are bonded together with an adhesive layer to form a board that combines insulation and decoration functions. In existing technologies, this conventional structure lacks a vertical supporting framework, relying solely on the splicing structure of the metal surfaces to achieve a certain compressive strength. The remaining pressure acts on the polyurethane core material, easily leading to deformation of the polyurethane core board or even the entire board. Summary of the Invention

[0003] The technical problem to be solved by this utility model is: how to design a polyurethane board with more reliable compressive strength.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] A polyurethane board for improving compressive strength includes a metal shell, a top reinforcing metal plate, a bottom reinforcing metal plate, metal end caps, screws, anchor bolts, a first polyurethane core board, longitudinal metal plates, and transverse metal plates. The top reinforcing metal plate and the bottom reinforcing metal plate are respectively attached to the top and bottom surfaces of the metal shell. Metal end caps are provided at the ends of the metal shell and are fastened to the top and bottom reinforcing metal plates by a number of screws. The first polyurethane core board is filled inside the metal shell. A number of anchor bolts penetrating the metal shell and the first polyurethane core board are connected between the top and bottom reinforcing metal plates. A number of longitudinal metal plates and a number of transverse metal plates are embedded inside the first polyurethane core board.

[0006] Preferably, the connection structure between the anchor bolt and the top reinforcing metal plate, and the connection structure between the anchor bolt and the bottom reinforcing metal plate, are both welded.

[0007] Preferably, the anchor bolt is a bolt that passes through the top reinforcing metal plate, the metal shell, the first polyurethane core plate, and the bottom reinforcing metal plate before being fastened to a nut.

[0008] Preferably, a number of raised portions are provided on the top reinforcing metal plate or the bottom reinforcing metal plate, and a second polyurethane core plate is filled in the raised portions.

[0009] Preferably, the raised portion is a hollow convex strip with a trapezoidal cross-sectional shape.

[0010] Preferably, an outer metal mesh is provided on the side wall of the raised portion, and mesh openings are provided on the outer metal mesh.

[0011] Preferably, threaded holes are provided on the side ends of the top reinforcing metal plate and the bottom reinforcing metal plate, and through holes are provided on the metal end cap plate. When the metal end cap plate is assembled on the metal shell, the through holes and the threaded holes are aligned, and screws pass through the through holes and are fastened in the threaded holes.

[0012] In the above technical solution, the metal shell provides a surrounding protection for the first polyurethane core board, utilizing its hollow plate-like shell structure to provide basic support. The top and bottom reinforcing metal plates, as the outer covering structure of the metal shell, are connected to the metal shell via anchor bolts and metal end caps to form an integral structure, reinforcing the metal shell; simultaneously, they serve as the force points for the installation of the metal end caps. The metal end caps serve as a closed structure at the ends of the entire sheet material and also provide a certain longitudinal support strength. Screws are used to connect and fix the metal end caps. The anchor bolts connect the top reinforcing metal plate, metal shell, first polyurethane core board, and bottom reinforcing metal plate vertically and also provide a certain longitudinal support. The first polyurethane core board is a conventional polyurethane core material; the longitudinal and transverse metal plates located inside it act as internal supports, further ensuring its compressive strength.

[0013] This invention provides a polyurethane board with improved compressive strength. The technical solution replaces the traditional metal panel with a metal shell, and adds reinforcing metal plates to its top and bottom surfaces. Based on this, anchor bolts and metal end caps ensure longitudinal support strength, and metal plates in both the transverse and longitudinal directions are embedded within the polyurethane core material, further guaranteeing compressive strength. This invention significantly improves compressive strength and effectively avoids board deformation problems. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention;

[0015] Figure 2 This is an assembly drawing of this utility model;

[0016] Figure 3 This is a cross-sectional view of the first polyurethane core board in this utility model;

[0017] In the picture:

[0018] 1. Metal shell 2. Top reinforcing metal plate 3. Bottom reinforcing metal plate 4. Metal end caps

[0019] 5. Raised section; 6. Screw; 7. Anchor bolt; 8. First polyurethane core board.

[0020] 9. Longitudinal metal plate; 10. Transverse metal plate; 11. Second polyurethane core board; 12. Outer metal mesh

[0021] 13. Mesh. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0023] Example 1

[0024] A polyurethane board with improved compressive strength, such as Figures 1-3 As shown, the device includes a metal shell 1, a top reinforcing metal plate 2, a bottom reinforcing metal plate 3, a metal end cap 4, screws 6, anchor bolts 7, a first polyurethane core board 8, longitudinal metal plates 9, and transverse metal plates 10. The top reinforcing metal plate 2 and the bottom reinforcing metal plate 3 are respectively attached to the top and bottom surfaces of the metal shell 1. The metal end cap 4 is provided at the end of the metal shell 1. The metal end cap 4 is fastened to the top reinforcing metal plate 2 and the bottom reinforcing metal plate 3 by a number of screws 6. The first polyurethane core board 8 is filled inside the metal shell 1. A number of anchor bolts 7 that penetrate the metal shell 1 and the first polyurethane core board 8 are connected between the top reinforcing metal plate 2 and the bottom reinforcing metal plate 3. A number of longitudinal metal plates 9 and a number of transverse metal plates 10 are embedded inside the first polyurethane core board 8.

[0025] In the above technical solution, the metal shell 1 provides a surrounding protection for the first polyurethane core board 8, utilizing its hollow plate-like shell structure to provide basic support. The top reinforcing metal plate 2 and the bottom reinforcing metal plate 3 serve as the outer covering structure of the metal shell 1. After being connected by anchor rods 7 and metal end-sealing plates 4, they form an integral structure with the metal shell 1, providing structural reinforcement; simultaneously, they serve as the force points for the installation of the metal end-sealing plates 4. The metal end-sealing plates 4 serve as a closed structure at the end of the entire plate and also provide a certain longitudinal support strength. Screws 6 are used to connect and fix the metal end-sealing plates 4. Anchor rods 7 connect the top reinforcing metal plate 2, the metal shell 1, the first polyurethane core board 8, and the bottom reinforcing metal plate 3 in the vertical direction, and also provide a certain longitudinal support. The first polyurethane core board 8 is a conventional polyurethane core material; the longitudinal metal plate 9 and the transverse metal plate 10 located inside it serve as internal supports, further ensuring its compressive strength.

[0026] Example 2

[0027] A polyurethane board with improved compressive strength, such as Figures 1-3 As shown, the device includes a metal shell 1, a top reinforcing metal plate 2, a bottom reinforcing metal plate 3, a metal end cap 4, screws 6, anchor bolts 7, a first polyurethane core board 8, longitudinal metal plates 9, and transverse metal plates 10. The top reinforcing metal plate 2 and the bottom reinforcing metal plate 3 are respectively attached to the top and bottom surfaces of the metal shell 1. A metal end cap 4 is provided at the end of the metal shell 1, and the metal end cap 4 is fastened to the top reinforcing metal plate 2 and the bottom reinforcing metal plate 3 by several screws 6. The first polyurethane core board 8 is filled inside the metal shell 1. Several anchor bolts 7, penetrating the metal shell 1 and the first polyurethane core board 8, connect the top reinforcing metal plate 2 and the bottom reinforcing metal plate 3. Several longitudinal metal plates 9 and several transverse metal plates 10 are embedded inside the first polyurethane core board 8. The connection structures between the anchor bolts 7 and the top reinforcing metal plate 2, and between the anchor bolts 7 and the bottom reinforcing metal plate 3, are all welded. Anchor 7 is a bolt that passes through the top reinforcing metal plate 2, the metal shell 1, the first polyurethane core plate 8, and the bottom reinforcing metal plate 3 before being fastened to a nut. Several raised portions 5 are provided on the top reinforcing metal plate 2 or the bottom reinforcing metal plate 3, and a second polyurethane core plate 11 is filled in each of the raised portions 5. Each raised portion 5 is a hollow convex strip with a trapezoidal cross-section. An outer metal mesh 12 is provided on the side wall of each raised portion 5, and mesh holes 13 are provided on the outer metal mesh 12. Threaded holes are provided on the side ends of the top reinforcing metal plate 2 and the bottom reinforcing metal plate 3, and through holes are provided on the metal end cap 4. When the metal end cap 4 is assembled onto the metal shell 1, the through holes align with the threaded holes, and screws 6 pass through the through holes and are fastened to the threaded holes.

[0028] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of this utility model application should be included within the protection scope of this utility model.

Claims

1. A polyurethane board with improved compressive strength, characterized in that... The device includes a metal shell (1), a top reinforcing metal plate (2), a bottom reinforcing metal plate (3), a metal end cap (4), screws (6), anchor rods (7), a first polyurethane core board (8), a longitudinal metal plate (9), and a transverse metal plate (10). The top reinforcing metal plate (2) and the bottom reinforcing metal plate (3) are attached to the top and bottom surfaces of the metal shell (1), respectively. A metal end cap (4) is provided at the end of the metal shell (1). The metal end cap (4) is fastened to the top reinforcing metal plate (2) and the bottom reinforcing metal plate (3) by several screws (6). The first polyurethane core board (8) is filled inside the metal shell (1). Several anchor rods (7) that penetrate the metal shell (1) and the first polyurethane core board (8) are connected between the top reinforcing metal plate (2) and the bottom reinforcing metal plate (3). Several longitudinal metal plates (9) and several transverse metal plates (10) are embedded inside the first polyurethane core board (8).

2. The polyurethane board with improved compressive strength according to claim 1, characterized in that, The connection structure between the anchor rod (7) and the top reinforcing metal plate (2), and the connection structure between the anchor rod (7) and the bottom reinforcing metal plate (3) are both welded.

3. The polyurethane board with improved compressive strength according to claim 1, characterized in that, The anchor rod (7) is a bolt that passes through the top reinforcing metal plate (2), the metal shell (1), the first polyurethane core plate (8), and the bottom reinforcing metal plate (3) before being fastened to the nut.

4. The polyurethane board with improved compressive strength according to claim 1, characterized in that, A number of raised portions (5) are provided on the top reinforcing metal plate (2) or the bottom reinforcing metal plate (3), and a second polyurethane core plate (11) is filled in the raised portions (5).

5. A polyurethane board for improving compressive strength according to claim 4, characterized in that, The raised part (5) is a hollow convex strip with a trapezoidal cross-section.

6. A polyurethane board for improving compressive strength according to claim 5, characterized in that, An outer metal mesh (12) is provided on the side wall of the raised part (5), and mesh holes (13) are provided on the outer metal mesh (12).

7. A polyurethane board for improving compressive strength according to claim 1, characterized in that, Threaded holes are provided on the side ends of the top reinforcing metal plate (2) and the bottom reinforcing metal plate (3), and through holes are provided on the metal end sealing plate (4). When the metal end sealing plate (4) is assembled on the metal plate shell (1), the through holes and the threaded holes are aligned, and the screws (6) pass through the through holes and are fastened in the threaded holes.

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