Dolerite refractory composite panel

By combining a light steel frame with diabase fireproof board, the problem of poor fire resistance of traditional composite panels is solved, achieving structural stability and safety at high temperatures, and improving the fire resistance and service life of the composite panels.

CN224447121UActive Publication Date: 2026-07-03HUBEI JIAOTONG INVESTMENT HANDU MINING DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI JIAOTONG INVESTMENT HANDU MINING DEV CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-03

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Abstract

The application provides a diabase fireproof composite board, which comprises a light steel framework, structure plates arranged on both sides of the light steel framework, and a flange part arranged on the outer edge of the structure plate. The light steel framework comprises an outer frame part, the side surface of the structure plate is abutted against the side end surface of the outer frame part, the end surfaces of the flange parts of the two structure plates are in contact and surrounded outside the outer frame part, the two structure plates and the outer frame part form a sandwich space, a heat preservation layer is arranged in the sandwich space, and the side of each structure plate close to the outside is provided with a diabase fireproof plate. The diabase fireproof composite board solves the problem of poor fire resistance of traditional composite boards.
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Description

Technical Field

[0001] This utility model relates to the field of refractory boards, and in particular to a diabase refractory composite board. Background Technology

[0002] Diabase is a natural rock widely distributed in my country. Diabase can be processed into diabase fibers through crushing, high-temperature melting, drawing, and cooling. Diabase fibers have low density, good resistance to high and low temperatures and corrosion, and good electrical insulation. The boards made from diabase fibers also integrate good mechanical and fire-resistant properties.

[0003] Common composite boards (such as wood composite boards, plastic composite boards, and ordinary fiber reinforced composite boards) often have poor fire resistance. They are not only flammable and spread flames quickly, but their mechanical properties also decline sharply at high temperatures, which can easily cause the main structure to collapse. Utility Model Content

[0004] This invention provides a diabase refractory composite board, which solves the problem of poor fire resistance of traditional composite boards.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a diabase fire-resistant composite board, including a light steel frame, structural plates on both sides of the light steel frame, flanges on the outer edges of the structural plates, an outer frame portion of the light steel frame, side surfaces of the structural plates abutting against the side end faces of the outer frame portion, the flange end faces of the two structural plates contacting and surrounding the outer side of the outer frame portion, the two structural plates and the outer frame portion forming a sandwich space, an insulation layer being provided in the sandwich space, and a diabase fireproof board being provided on the outer side of each structural plate.

[0006] In a preferred embodiment, the outer frame has multiple spaced thickened blocks on its outer side, each thickened block having a first screw mounting hole. The flange has multiple spaced first recesses on its outer side, each first recess having a first screw through hole. The flange also has a plate connector and a first screw. The plate connector has a recessed portion, and the recessed portion has a second screw through hole. The first screw passes through the second screw through hole and the first screw through hole to be threadedly connected to the first screw mounting hole.

[0007] In the preferred embodiment, the plate connector has bent portions at both ends, and the flange portion has a second recessed groove. The bent portions are inserted into the second recessed groove, and the bent portions have second screw mounting holes. The outer edge of the diabase fireproof board has a third screw through hole, and a second screw is also provided. The second screw passes through the third screw through hole to be threadedly connected to the second screw mounting hole.

[0008] In the preferred embodiment, the bent portion is provided with a protrusion, the outer edge of the diabase fireproof board is provided with a relief groove, the protrusion is embedded in the relief groove, and the protrusion is provided with an external screw hole.

[0009] In the preferred embodiment, the inner side of the outer frame is provided with multiple reinforcing ribs.

[0010] In the preferred embodiment, each intersection of the multiple reinforcing inner ribs is provided with a connecting column, the connecting column is provided with a through third screw mounting hole, the structural plate is provided with multiple stepped countersunk holes, and a third screw is also provided, the third screw passes through the stepped countersunk hole to be threadedly connected to the third screw mounting hole.

[0011] In the preferred embodiment, a flame-retardant coating is sprayed onto the outer edge of the flange.

[0012] The beneficial effects of this utility model are as follows: A light steel frame combined with a concave cavity structure panel is used to improve the structural strength of the composite panel; the interior is filled with porous, lightweight, flame-retardant material to improve sound insulation and heat preservation performance; a fireproof board mixed with diabase powder or fiber is bonded to the outside to prevent direct contact between flames and the interior, thus improving the flame-retardant effect; the fireproof board mixed with diabase and diabase fiber has good wear resistance and electrical insulation, making the composite panel not only long-lasting but also significantly improving safety; the composite panel adopts a splicing design, and multiple layers of panels can be firmly connected to the light steel frame through panel connectors to prevent the direct load-bearing capacity of each layer from breaking; the composite panel has the same structure in all directions, so there is no need to consider the direction during installation, reducing installation difficulty; the panel connectors have pre-drilled external screw holes to improve the expandability of the composite panel. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the composite board's appearance.

[0015] Figure 2 This is a diagram of the internal structure of the composite board.

[0016] Figure 3 This is a diagram of a light steel frame structure.

[0017] Figure 4 This is a schematic diagram of the intermediate structural plate.

[0018] Figure 5 It is a diagram of the sheet metal connectors and installation structure.

[0019] Figure 6 This is a sectional view of the connecting column.

[0020] Figure 7 This is a sectional view of the sheet metal connector.

[0021] In the diagram: 1. Light steel frame; 101. Outer frame; 102. Reinforcing inner rib; 103. Thickened block; 104. First screw mounting hole; 105. Connecting column; 106. Third screw mounting hole; 2. Structural plate; 201. Flange; 202. First recess; 203. First screw through hole; 204. Second recess; 205. Stepped countersunk hole; 3. Diabase fireproof board; 301. Third screw through hole; 302. Circumvention groove; 4. Insulation layer; 5. Plate connector; 501. Concave part; 502. Second screw through hole; 503. Second screw mounting hole; 504. Protrusion; 505. External screw hole; 506. First screw; 6. Second screw; 7. Third screw; 8. Flame retardant coating; 9. Detailed Implementation

[0022] like Figure 1-7 In a diabase fire-resistant composite panel, a light steel frame 1 is provided, and structural plates 2 are provided on both sides of the light steel frame 1. The outer edge of the structural plates 2 is provided with flanges 201. The light steel frame 1 includes an outer frame 101. The side of the structural plates 2 abuts against the side end face of the outer frame 101. The end faces of the flanges 201 of the two structural plates 2 contact and surround the outer side of the outer frame 101. The two structural plates 2 and the outer frame 101 form a sandwich space. An insulation layer 4 is provided in the sandwich space. A diabase fireproof board 3 is provided on the outer side of each structural plate 2.

[0023] The outer frame 101 and flange 201 can improve the structural strength of the composite panel, and the hollow structure can be filled with lightweight sound insulation and heat insulation materials such as flame-retardant polyester fiber, heat insulation cotton, polyurethane, etc.

[0024] The diabase fireproof board 3 is a gypsum board filled with diabase powder or embedded with diabase fibers, or it is made by directly pressing diabase fibers with a small amount of binder into a lightweight, high-porosity heat-insulating board. The diabase fireproof board 3 covers the outside of the structural board 2, preventing flames from directly contacting the structural board 2 and improving the fire resistance of the composite board.

[0025] In a preferred embodiment, the outer frame portion 101 has a plurality of spaced thickened blocks 103 on its outer side, and the thickened blocks 103 have first screw mounting holes 104. The flange portion 201 has a plurality of spaced first recesses 202 on its outer side, and the first recesses 202 have first screw through holes 203. The plate connector 5 and the first screw 6 are also provided. The plate connector 5 has a concave portion 501, and the concave portion 501 has a second screw through hole 502. The first screw 6 passes through the second screw through hole 502 and the first screw through hole 203 to be threadedly connected to the first screw mounting hole 104.

[0026] The plate connector 5 can be made of steel bending parts with holes, pressing the flange 201 and connecting it to the outer frame 101.

[0027] The thickened block 103 has a certain thickness, which facilitates drilling and tapping.

[0028] In a preferred embodiment, the plate connector 5 has bending portions 503 at both ends, the flange portion 201 has a second recess 204, the bending portion 503 is inserted into the second recess 204, the bending portion 503 has a second screw mounting hole 504, the outer edge of the diabase fireproof board 3 has a third screw through hole 301, and a second screw 7 is also provided. The second screw 7 passes through the third screw through hole 301 to be threadedly connected to the second screw mounting hole 504.

[0029] The second screw 7 presses the diabase fireproof board 3 onto the board connector 5, which is connected to the light steel frame 1. Therefore, the second screw 7 is firmly fixed to the light steel frame 1.

[0030] The outer edge of the diabase fireproof board 3 is fixed by the second screw 7. The center of the side of the diabase fireproof board 3 that contacts the structural board 2 can be glued to the structural board 2, or the center of the diabase fireproof board 3 can be fixed to the center of the structural board 2 by a nail gun.

[0031] In the preferred embodiment, the bending portion 503 is provided with a protrusion 505, the outer edge of the diabase fireproof board 3 is provided with a relief groove 302, the protrusion 505 is embedded in the relief groove 302, and the protrusion 505 is provided with an external screw hole 506.

[0032] The surface of the protrusion 505 is flush with the surface of the diabase fireproof board 3. Multiple composite boards can be spliced ​​together by connectors to increase the expandability of the composite board and facilitate installation with the building structure by hangers or supports.

[0033] In the preferred embodiment, the inner side of the outer frame 101 is provided with a plurality of reinforcing inner ribs 102.

[0034] In the preferred embodiment, each intersection of the multiple reinforcing inner ribs 102 is provided with a connecting post 105, the connecting post 105 is provided with a through third screw mounting hole 106, the structural plate 2 is provided with multiple stepped countersunk holes 205, and is also provided with a third screw 8, the third screw 8 passes through the stepped countersunk hole 205 to be threadedly connected to the third screw mounting hole 106.

[0035] The third screw 8 fixes the central area of ​​the structural plate 2 to the light steel frame 1, preventing the central part of the structural plate 2 from bulging and deforming under stress.

[0036] In the preferred embodiment, a flame-retardant coating 9 is sprayed onto the outer edge of the flange portion 201.

[0037] To reduce the difficulty of the process, the diabase fireproof board 3 adopts a flat structure. It is difficult to directly cover the edge of the structural board 2 to form a flame-retardant layer. Therefore, a flame-retardant coating 9 is sprayed on the outer edge of the flange 201 for sealing. This not only retards the flame but also prevents moisture from penetrating, thus playing a role in corrosion prevention and preventing the edges from curling.

[0038] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A diabase refractory composite slab, characterized by: The light steel frame (1) includes structural plates (2) on both sides of the light steel frame (1), and flanges (201) on the outer edge of the structural plates (2). The light steel frame (1) includes an outer frame (101). The side of the structural plates (2) abuts against the side end face of the outer frame (101). The end faces of the flanges (201) of the two structural plates (2) contact and surround the outer side of the outer frame (101). The two structural plates (2) and the outer frame (101) form a sandwich space. An insulation layer (4) is provided in the sandwich space. A diabase fireproof board (3) is provided on the outer side of each structural plate (2).

2. The diabase refractory composite panel of claim 1, wherein: The outer frame (101) has multiple spaced thickened blocks (103) on its outer side, and the thickened blocks (103) have first screw mounting holes (104). The flange (201) has multiple spaced first recesses (202) on its outer side, and the first recesses (202) have first screw through holes (203). The plate connector (5) and the first screw (6) are also provided. The plate connector (5) has a recess (501), and the recess (501) has a second screw through hole (502). The first screw (6) passes through the second screw through hole (502) and the first screw through hole (203) to be threadedly connected to the first screw mounting hole (104).

3. The diabase refractory composite panel of claim 2, wherein: The plate connector (5) has a bent part (503) at both ends, and a second groove (204) is provided on the flange part (201). The bent part (503) is inserted into the second groove (204). A second screw mounting hole (504) is provided at the bent part (503). A third screw through hole (301) is provided on the outer edge of the diabase fireproof board (3). A second screw (7) is also provided. The second screw (7) passes through the third screw through hole (301) to be threadedly connected to the second screw mounting hole (504).

4. The diabase refractory composite panel of claim 3, wherein: The bending part (503) is provided with a protrusion (505), and the outer edge of the diabase fireproof board (3) is provided with a relief groove (302). The protrusion (505) is embedded in the relief groove (302), and the protrusion (505) is provided with an external screw hole (506).

5. The diabase refractory composite panel of claim 1, wherein: Multiple reinforcing ribs (102) are provided on the inner side of the outer frame (101).

6. The diabase refractory composite panel of claim 5, wherein: A connecting column (105) is provided at each intersection of multiple reinforcing inner ribs (102). The connecting column (105) is provided with a through third screw mounting hole (106). The structural plate (2) is provided with multiple stepped countersunk holes (205) and a third screw (8). The third screw (8) passes through the stepped countersunk hole (205) to be threadedly connected to the third screw mounting hole (106).

7. The diabase fire resistant composite panel of claim 1, wherein: Flame-retardant coating (9) is sprayed on the outer edge of the flange (201).