Lightweight anti-bending metal surface thermal insulation sandwich panel structure

Abstract

The utility model discloses a light anti-bending metal surface heat-preservation sandwich panel structure which comprises a metal panel, a heat-preservation plate, a heat-preservation plate, a heat-preservation plate and a heat-preservation plate, the anti-bending component is arranged on the inner side wall surface of the metal panel along the length direction of the metal panel; the inner side wall surface of the metal panel is filled with the net-woven reinforced fiber cotton heat-preservation core material, and the outer side wall surface of the metal panel is filled with the net-woven reinforced fiber cotton heat-preservation core material; the utility model relates to the technical field of building materials, one or more metal anti-bending components are additionally arranged in the middle of a metal plate, so that the bending resistance of the whole plate is improved, the deflection is reduced, the stability and the compressive strength of the plate are improved, meanwhile, the weight of the sandwich plate is reduced, the sandwich plate is light in weight and easy to construct and carry, and the construction cost is reduced; a sewing technology is adopted, a covering material such as a glass fiber net is wrapped and covered on a fiber cotton bare board, and the fiber cotton bare board and the covering material are sewn together through various stitches such as basalt fiber lines to form the high-strength heat preservation core material.

Description

Technical Field

[0001] The utility model relates to the technical field of building materials, in particular to a structure of a lightweight and flexure-resistant metal-faced thermal insulation sandwich panel. Background Technique

[0002] In the purification project fields with strict requirements for indoor environment such as electronics, pharmaceuticals, food, biology, aerospace, precision instrument manufacturing and scientific research, as well as in the interior walls, partitions and ceiling boards in the industrial and civil construction fields, metal-faced sandwich thermal insulation panels are usually used. Currently, in the purification project fields, the main metal-faced sandwich thermal insulation core materials are as follows:

[0003] 1. Composite material sandwich panel: Ordinary fiber cotton strips are compounded with magnesium oxychloride boards. The main function of the magnesium oxychloride board is to increase the integrity and improve the bending strength. However, since the magnesium oxychloride board is easy to absorb water and has a large weight, after the magnesium oxychloride board absorbs water, it reacts chemically with water to generate magnesium dioxide MgO2, whose alkalinity is second only to the three major strong alkalis and has strong corrosiveness. It reacts chemically with the iron panel and is extremely easy to rust and corrode, greatly reducing the service life of the board.

[0004] 2. Organic material sandwich panel: The core material mainly adopts EPS molded polystyrene boards, polyurethane boards, phenolic boards, etc. Due to the low strength of the material itself, easy powdering and aging, low fire protection grade and extremely easy combustion, and in addition, the production process of the board is not standardized and "cuts corners", it has long been prohibited from use by relevant national departments.

[0005] 3. Pure inorganic material sandwich panel: At present, the core materials of such metal-faced sandwich panels in the market all adopt single vertical wire rock wool strips without any anti-bending and anti-compression reinforcement measures, which are spliced with staggered joints. Its structure is loose and soft, the integrity is poor, the bending degree is large, and the board is extremely easy to bend and deform. Since this kind of board is mainly used in the interior walls and partitions of buildings, the single-span is generally 6m - 12m or even longer, and the construction difficulty is large.

[0006] In view of this, through in-depth research, this case has been generated. Content of the Utility Model

[0007] In order to solve the problems raised in the background technique, the utility model is realized through the following technical solutions: A structure of a lightweight and flexure-resistant metal-faced thermal insulation sandwich panel, including:

[0008] A metal panel, the metal panel has a loop structure;

[0009] A flexure-resistant member, the flexure-resistant member is installed on the inner side wall surface of the metal panel along the length direction of the metal panel;

[0010] A reticulated reinforced fiber cotton thermal insulation core material, the reticulated reinforced fiber cotton thermal insulation core material is filled on the inner side wall surface of the metal panel;

[0011] An adhesive, through which the reticulated reinforced fiber cotton thermal insulation core material is connected to the metal panel.

[0012] Preferably, the materials used for the metal panel include galvanized iron sheet and stainless steel.

[0013] Preferably, the materials used for the anti-flexure member include galvanized iron sheet, and the cross-sectional shape of the anti-flexure member includes square, circular, U-shaped, trapezoidal, parallelogram, triangular and their composite shapes.

[0014] Preferably, the anti-flexure member and the metal panel are connected by a connection method of welding, riveting or threading.

[0015] Preferably, the number of the anti-flexure members is at least 1.

[0016] Preferably, the reticulated reinforced fiber cotton thermal insulation core material includes fiberglass mesh cloth, fiber bare cotton board and sewing thread. The fiberglass mesh cloth is coated on the fiber bare cotton board, and the sewing thread uses sewing technology to sew and connect the fiberglass mesh cloth and the fiber bare cotton board.

[0017] Preferably, the sewing technology is that the sewing thread adopts a one-way or cross-ring continuous lockstitch to penetrate the fiberglass mesh cloth and the fiber bare cotton board into one body, and then sew again in the reverse direction.

[0018] Preferably, the materials used for the sewing thread include basalt fiber thread, PE thread and stainless steel wire thread, and the materials used for the fiber bare cotton board include rock wool, mineral wool, glass wool, ceramic wool, aerogel board made of horizontal or vertical filaments or a composite body of two or more of the above materials.

[0019] Beneficial effects

[0020] The present utility model provides a lightweight anti-flexure metal-faced thermal insulation sandwich panel structure. Compared with the prior art, it has the following beneficial effects:

[0021] 1. Add one or several metal anti-flexure members in the middle of the metal plate to improve the bending resistance of the whole plate, reduce the deflection, so as to improve the stability and compressive strength of the plate. At the same time, the weight of the sandwich panel is reduced, making it lightweight, easy to construct, easy to handle, and reducing the construction cost.

[0022] 2. By using sewing technology, facing materials such as fiberglass mesh are wrapped around the fiber cotton bare board and stitched together with various sewing threads such as basalt fiber threads to form a high-strength thermal insulation core material. Through the sewing technology, the threads, the thread and the mesh cloth, and the thread and the cotton are tightly "bundled and tightened", so that the high-strength sewing threads, the fiberglass mesh cloth and the cotton are tightly combined together. The bending strength of the whole board is enhanced. According to the bending resistance requirement, the row spacing of the sewing threads can be encrypted, the sewing threads can be thickened, and the bending resistance can be adjusted according to the demand. Therefore, a relatively high mechanical strength is formed on the entire board surface, greatly improving the looseness of the core material. Its overall mechanical properties, bending, tensile and shear strength are significantly improved, especially the tensile strength is greatly increased.

[0023] 3. The thermal insulation effect is improved. Due to the factor that the mechanical strength of the core material of the sandwich panel is greatly increased after sewing, therefore, the core material density can be appropriately reduced for the materials that originally required high density after industrial sewing. The thermal insulation performance of the reduced rock wool core material is better, and the thermal conductivity is only about (0.035 - 0.046) [W / (m·K)].

[0024] 4. High combustion rating. All the constituent materials of the whole material are inorganic materials, belonging to non-combustible materials, and the fire protection rating is Class A.

[0025] 5. Convenient for construction and installation. With the increase of the bending strength of the board, the deflection of the board is small, the board is straight, and the installation is more rapid and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic internal structure diagram of the structure of the lightweight flexible metal-faced thermal insulation sandwich panel of the present utility model.

[0027] Figure 2 It is a schematic connection diagram of the metal panel and the flexible member of the structure of the lightweight flexible metal-faced thermal insulation sandwich panel of the present utility model.

[0028] Figure 3 It is a schematic sewing diagram of the structure of the lightweight flexible metal-faced thermal insulation sandwich panel of the present utility model.

[0029] In the figure: 1. Metal panel, 2. Flexible member, 3. Mesh-reinforced fiber cotton thermal insulation core material, 301. Fiberglass mesh cloth, 302. Fiber bare cotton board, 303. Sewing thread, 4. Adhesive. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Embodiment: Please refer to Figures 1-3 , the structure of the lightweight flexible metal-faced thermal insulation sandwich panel includes:

[0032] A metal panel 1, and the metal panel 1 has a loop-shaped structure;

[0033] It should be noted that, preferably, furthermore, the material used for the metal panel 1 includes galvanized iron sheets and stainless steel with anti-corrosion treatment on the surface, but is not limited to the above two materials. The thickness dimension of the metal panel 1 is not greater than 1.00 mm. The shape of the metal panel 1 can be flat or irregular, and the cross-sectional shape of the irregular panel includes but is not limited to flat, wavy, trapezoidal, rectangular, arc and other types;

[0034] A flexural resistance member 2, and the flexural resistance member 2 is installed on the inner side wall surface of the metal panel 1 along the length direction of the metal panel 1;

[0035] It should be noted that, preferably, furthermore, the material used for the flexural resistance member 2 includes galvanized iron sheets with anti-corrosion treatment on the surface. The cross-sectional shape of the flexural resistance member 2 includes square, circular, U-shaped, trapezoidal, parallelogram (including rhombus), triangular and their composite shapes and the shapes formed by their combination, but is not limited to the above shapes. The flexural resistance member 2 is connected to the metal panel 1 by welding, riveting or threading, reducing the deflection of the lightweight anti-disturbance metal sandwich panel and increasing the overall bending and compressive strength. The number of the flexural resistance members 2 is at least 1, and the number is not limited according to the strength requirements of the board usage occasion;

[0036] A reticulated reinforced fiber cotton thermal insulation core material 3, and the reticulated reinforced fiber cotton thermal insulation core material 3 is filled on the inner side wall surface of the metal panel 1;

[0037] Preferably, furthermore, the reticulated reinforced fiber cotton thermal insulation core material 3 includes a fiberglass mesh cloth 301, a fiber bare cotton board 302 and sewing threads 303. The fiberglass mesh cloth 301 is coated on the fiber bare cotton board 302, and the sewing threads 303 use sewing technology to connect the fiberglass mesh cloth 301 and the fiber bare cotton board 302;

[0038] It should be noted that the material of the fiber bare cotton board 302 includes but is not limited to core materials such as crosswise rock wool, longitudinal rock wool, mineral wool, glass wool, ceramic wool, aerogel board, and composites of two or more materials. Through modern industrial sewing techniques, fabrics such as fiberglass mesh cloth 301 are used to wrap fiber cotton boards or cotton strips such as rock wool, mineral wool, and glass wool. The overall combination of the fiber bare cotton board 302 and the fiberglass mesh cloth is sewn together with various twisted or untwisted threads such as basalt fibers to enhance the mechanical strength. Through the sewing technique, the looseness of the core material is greatly improved, and its overall mechanical properties, flexural strength, tensile strength, and shear strength are significantly increased, especially the overall tensile strength is greatly increased. Due to the factor that the mechanical strength of the net-reinforced fiber cotton insulation core material 3 is greatly increased after sewing, the density of the material that originally required high density can be appropriately reduced after industrial sewing. The insulation performance of the reduced-density rock wool-based core material is better, and the thermal conductivity is only about (0.035 - 0.046) [W / (m·K)], with a high insulation effect;

[0039] Preferably, furthermore, the sewing technique is that the sewing thread 303 uses a one-way or cross-shaped circular chain continuous lockstitch to penetrate the fiberglass mesh cloth 301 and the fiber bare cotton board 302 into one body, and then perform another sewing in the reverse direction;

[0040] It should be noted that the sewing thread 303 uses a one-way or cross-shaped circular chain continuous lockstitch to penetrate the fiberglass mesh cloth 301 and the fiber bare cotton board 302 into one body. Since the chain continuous lockstitch generally has the characteristic of one-way loosening, after one-way continuous penetration and reinforcement, a continuous lockstitch penetration reinforcement can be performed again in the reverse direction. Finally, no matter from which part of the insulation material is cut, the chain links around the cut section will not become loose, strengthening the integrity of the entire insulation board and making it not easy to become loose. According to the bending resistance requirement, the row spacing of the sewing thread 303 can be increased, the sewing thread 303 can be thickened, and the bending resistance can be adjusted according to the demand;

[0041] The adhesive 4 is used to connect the net-reinforced fiber cotton insulation core material 3 and the metal panel 1.

[0042] It should be noted that the adhesive 4 is a high-strength glue that firmly bonds the net-reinforced fiber cotton insulation core material 3 after sewing and the metal panel 1 together, including but not limited to inorganic and various polymer organic glues.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The structure of a lightweight anti-flexure metal-faced thermal insulation sandwich panel, characterized in that, Comprising: A metal panel (1), the metal panel (1) having a looped structure; A flexural member (2), the flexural member (2) being installed on the inner wall surface of the metal panel (1) along the length direction of the metal panel (1); A reticulated reinforced fiber cotton thermal insulation core material (3), the reticulated reinforced fiber cotton thermal insulation core material (3) being filled on the inner wall surface of the metal panel (1); An adhesive (4), the reticulated reinforced fiber cotton thermal insulation core material (3) and the metal panel (1) being connected by the adhesive (4).

2. The lightweight and flexure-resistant metal-faced thermal insulation sandwich panel structure according to claim 1, characterized in that, The material used for the metal panel (1) includes galvanized iron sheet and stainless steel.

3. The lightweight and flexure-resistant metal-faced thermal insulation sandwich panel structure according to claim 1, characterized in that, The material used for the flexural member (2) includes galvanized iron sheet, and the cross-sectional shape of the flexural member (2) includes square, circular, U-shaped, trapezoidal, parallelogram, triangular and their composite shapes.

4. The lightweight and flexure-resistant metal-faced thermal insulation sandwich panel structure according to claim 1, characterized in that, The flexural member (2) and the metal panel (1) are connected by a connection method of welding, riveting or threading.

5. The lightweight flexural-resistant metal-faced thermal insulation sandwich panel structure according to claim 1, characterized in that, The number of the flexural members (2) is at least 1.

6. The lightweight flexural-resistant metal-faced thermal insulation sandwich panel structure according to claim 1, wherein The reticulated reinforced fiber cotton thermal insulation core material (3) includes a fiberglass mesh cloth (301), a fiber bare cotton board (302) and a sewing thread (303), the fiberglass mesh cloth (301) being coated on the fiber bare cotton board (302), and the sewing thread (303) using sewing technology to sew and connect the fiberglass mesh cloth (301) and the fiber bare cotton board (302).

7. The light-weight and flexure-resistant metal-faced thermal insulation sandwich panel structure according to claim 6, characterized in that, The sewing technology is that the sewing thread (303) uses a one-way or cross-ring-shaped continuous lockstitch to penetrate and integrate the fiberglass mesh cloth (301) and the fiber bare cotton board (302) into one body, and then performs sewing again in the reverse direction.

8. The light-weight and flexure-resistant metal-faced thermal insulation sandwich panel structure according to claim 7, wherein The material used for the sewing thread (303) includes basalt fiber thread, PE thread and stainless steel wire thread, and the material used for the fiber bare cotton board (302) includes rock wool, mineral wool, glass wool, ceramic wool, aerogel board made of horizontal or vertical filaments or a composite of two or more of the above materials.

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