Flame-retardant floor

Abstract

The utility model provides a flame-retardant floor, and relates to the field of decorative building materials. The flame-retardant floor comprises a glass magnesium board base body and a pp film, the glass magnesium board base body is provided with at least one pair of first side face and second side face which are oppositely arranged, a shielding protrusion is arranged on the first side face in a protruding mode, and the top face of the shielding protrusion is flush with the top face of the glass magnesium board base body; a bearing bulge is convexly arranged on the second side surface, and the bottom surface of the bearing bulge is flush with the bottom surface of the magnesium oxide board base body; when the adjacent glass magnesium board base bodies are spliced, the shielding protrusions are clamped with the corresponding bearing protrusions, and the shielding protrusions are located above the bearing protrusions; and the PP film covers the top surface of the glass magnesium board substrate and the top surface of the shielding bulge at the same time. The floor is good in flame retardant effect, environment-friendly and reliable.

Description

Technical Field

[0001] The utility model relates to the field of decorative building materials, in particular to a flame retardant floor. Background Art

[0002] Decorative board is a kind of man-made board, the board surface has various wood grains or patterns, bright and smooth, bright and beautiful colors, and also has high heat resistance, cold resistance, wear resistance, moisture resistance, fire resistance and other properties, and can be used as the walls and roofs of high-end houses. Existing decorative boards usually use wood boards as substrates and coat them with films to form decorative decorative boards. However, ordinary wood itself has low strength and poor fire resistance, moisture resistance and sound insulation. The common PVC floor on the market is mainly composed of polyvinyl chloride. The biggest feature of polyvinyl chloride is flame retardancy, so it is widely used in fire protection applications. However, polyvinyl chloride releases hydrogen chloride and other toxic gases, such as dioxins, during combustion. In addition, PVC materials also have disadvantages such as poor thermal stability and high smoke density during combustion. The poor thermal stability of PVC is related to the chemical defect structure contained in its molecular structure (such as allyl chloride, tertiary chlorine, end groups with double bonds or peroxide residues, etc.). Under heating conditions, it is easy to undergo self-catalytic dehydrochlorination reaction to form conjugated polyene chains, which then break the chain, cross-link, discolor and degrade. During the combustion process, PVC first undergoes a dehydrochlorination reaction, and then a series of reactions such as cross-linking, cyclization, and chain breaking occur. It continues to burn to produce carbon monoxide, carbon dioxide, benzene ring compounds, and carbon smoke, which are very harmful to the environment and personal safety.

[0003] The inventor has found that the existing floor has at least the following disadvantages:

[0004] The burning process of the floor is likely to produce harmful gases, polluting the environment. Utility Model Content

[0005] The utility model aims to provide a flame retardant floor, which can improve the flame retardancy and is not easy to produce harmful gases and pollute the environment during combustion.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In a first aspect, the utility model provides a flame retardant floor, comprising:

[0008] A glass magnesium board substrate and a PP film, wherein the glass magnesium board substrate has at least one pair of first side surfaces and second side surfaces that are oppositely arranged, a shielding protrusion is convexly provided on the first side surface, and the top surface of the shielding protrusion is flush with the top surface of the glass magnesium board substrate; a receiving protrusion is convexly provided on the second side surface, and the bottom surface of the receiving protrusion is flush with the bottom surface of the glass magnesium board substrate; when adjacent glass magnesium board substrates are spliced, the shielding protrusion is engaged with the corresponding receiving protrusion, and the shielding protrusion is located above the receiving protrusion;

[0009] The PP film covers the top surface of the glass magnesium board substrate and the top surface of the shielding protrusion at the same time.

[0010] In an optional embodiment, the shielding protrusion has an outer side surface away from the first side surface, and the PP film extends to the outer side surface.

[0011] Based on the above scheme, the PP film not only covers the top surface of the shielding protrusion, but also extends to the outer side of the shielding protrusion after passing through the top surface. That is, because the PP film covers the top surface of the shielding protrusion and then folds back to cover the outer side of the shielding protrusion, it not only plays a good protective role for the glass magnesium board substrate and the top surface of the shielding protrusion, and improves the overall strength of the floor, but also after the adjacent floors are spliced, the PP film is partially clamped by the two floors, and the PP film is not easy to peel off from the shielding protrusion, and the bonding ability is significantly improved. At the same time, because the outer side of the shielding protrusion is covered with the PP film, the side of the shielding protrusion is given fireproof performance, and the fireproofness of the entire floor is improved.

[0012] In an optional embodiment, the shielding protrusion has an inner bottom surface opposite to its own top surface, and the PP film covers the outer side surface and extends onto the inner bottom surface.

[0013] Based on the above solution, after the PP film covers the outer side surface of the shielding protrusion, it folds back and covers the inner bottom surface of the shielding protrusion, further improving the bonding strength between the PP film and the shielding protrusion. During the use of the floor, the PP film is not easily separated from the glass magnesium board substrate and has a long service life.

[0014] In an optional embodiment, the distance between the inner bottom surface and the top surface of the shielding protrusion gradually increases in a preset direction, and the preset direction is a direction perpendicular to the first side surface and away from the second side surface.

[0015] Based on the above solution, the shielding protrusion is roughly a structure with a thicker head and a narrower tail, forming an inverted structure. When adjacent floors are spliced, the shielding protrusion and the receiving protrusion bite into each other to improve the bonding strength and improve the overall firmness.

[0016] In an optional embodiment, the inner bottom surface and the first side surface are connected by an arc surface.

[0017] Based on the above solution, there is an arc-shaped transition between the shielding protrusion and the glass magnesium board substrate, which is not prone to stress concentration, cracking or disconnection at the connection position, has high structural strength, and is safe and reliable to use.

[0018] In an optional embodiment, a first concave-convex structure is provided on the inner bottom surface; the receiving protrusion has an inner top surface opposite to its own bottom surface, and a second concave-convex structure is provided on the inner top surface, and the first concave-convex structure is snap-fitted with the corresponding second concave-convex structure.

[0019] Based on the above solution, when adjacent floors are spliced, the inner bottom surface of the shielding protrusion fits with the outer top surface of the receiving protrusion, and the first concave-convex structure and the second concave-convex structure are snap-fitted together, further improving the bonding strength of the adjacent floors.

[0020] In an optional embodiment, the pp film covers the first concave-convex structure.

[0021] Based on the above solution, part of the PP film is clamped by the first concave-convex structure and the second concave-convex structure, the combination of the PP film and the glass magnesium board substrate is more firm and reliable, the two are not easy to separate, and the protective effect is good.

[0022] In an optional embodiment, a side of the PP film away from the shielding protrusion is adhered to the second side surface.

[0023] Based on the above solution, one side of the PP film is folded back on the outer side and inner bottom surface of the shielding protrusion, and the other side of the PP film is folded back on the second side. In this way, both sides of the PP film are not easily separated from the glass magnesium board body, and the protective effect is good.

[0024] In an optional embodiment, the thickness of the glass magnesium board substrate is set to 10-18 mm.

[0025] Based on the above scheme, the thickness of the glass magnesium board substrate is set reasonably, which can reduce costs while ensuring safety.

[0026] In an optional embodiment, the thickness of the PP film is set to 50-100 μm.

[0027] Based on the above scheme, the thickness of the PP film is set reasonably to reduce costs while ensuring protective performance.

[0028] The beneficial effects of the embodiments of the utility model are:

[0029] In summary, the flame-retardant floor provided in this embodiment has a PP film on the top surface of the glass magnesium board substrate. The glass magnesium board substrate itself contains a large amount of inorganic substances such as magnesium oxide and magnesium chloride, and has the characteristics of high temperature resistance and non-combustibility. It belongs to a non-combustible board. The flame continues to burn for zero time, does not burn at 800°C, and has no flames at 1200°C. It reaches the highest fireproof and non-combustible level A1, and the fire resistance limit reaches more than 3 hours. It can absorb a large amount of heat energy during the combustion process, delay the increase of the surrounding temperature, and has a good flame retardant and flame retardant effect. At the same time, the PP film only releases water and carbon dioxide when it burns, and basically does not produce toxic gases. It is environmentally friendly and hygienic, and the smoke generated during the combustion process is not easy to pollute the environment. In addition, the PP film can also be recycled and degraded to improve resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of a flame retardant floor according to an embodiment of the utility model;

[0032] Figure 2 It is a cross-sectional schematic diagram of a flame retardant floor according to an embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of a glass magnesium board substrate according to an embodiment of the present utility model.

[0034] icon:

[0035] 100 - glass magnesium board substrate; 110 - first side surface; 120 - second side surface; 130 - shielding protrusion; 131 - outer side surface; 132 - inner bottom surface; 133 - first concave-convex structure; 140 - receiving protrusion; 141 - inner top surface; 142 - second concave-convex structure; 200 - pp film. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the prior art, when PVC floor is burned, harmful gas will be generated, which is easy to pollute the environment.

[0043] In view of this, the designer provides a flame retardant floor, which can not only improve the flame retardant performance, but also prevent the production of toxic gases during combustion, and is environmentally friendly and reliable.

[0044] Please combine Figure 1-Figure 3In this embodiment, the flame-retardant floor includes a glass magnesium board substrate 100 and a PP film 200. The glass magnesium board substrate 100 has at least a pair of oppositely arranged first side surfaces 110 and second side surfaces 120. A shielding protrusion 130 is convexly provided on the first side surface 110, and the top surface of the shielding protrusion 130 is flush with the top surface of the glass magnesium board substrate 100; a receiving protrusion 140 is convexly provided on the second side surface 120, and the bottom surface of the receiving protrusion 140 is flush with the bottom surface of the glass magnesium board substrate 100; when adjacent glass magnesium board substrates 100 are spliced, the shielding protrusion 130 is engaged with the corresponding receiving protrusion 140, and the shielding protrusion 130 is located above the receiving protrusion 140; the PP film 200 covers the top surface of the glass magnesium board substrate 100 and the top surface of the shielding protrusion 130 at the same time.

[0045] Based on the above, the working principle of the flame retardant floor provided in this embodiment is as follows:

[0046] The top surface of the glass magnesium board substrate 100 is provided with a PP film 200, and the first side surface 110 and the second side surface 120 of the glass magnesium board substrate 100 are respectively provided with a shielding protrusion 130 and a receiving protrusion 140. When adjacent glass magnesium board substrates 100 are spliced, the shielding protrusion 130 of one of the adjacent glass magnesium board substrates 100 is engaged with the receiving protrusion 140 of the other, and the shielding protrusion 130 is located above the receiving protrusion 140, and the matching structure of multiple glass magnesium board substrates 100 is firm and reliable. Since the glass magnesium board substrate 100 itself contains a large amount of inorganic substances such as magnesium oxide and magnesium chloride, it has the characteristics of high temperature resistance and non-combustibility. It belongs to a non-combustible board. The flame continues to burn for zero time, does not burn at 800°C, and has no flames at 1200°C, reaching the highest fireproof and non-combustible level A1, and the fire resistance limit reaches more than 3 hours. It can absorb a large amount of heat energy during the combustion process of fire, delay the increase of the surrounding environment temperature, and has good flame retardant and flame retardant effects. At the same time, when the PP film 200 is burned, only water and carbon dioxide are released, and basically no toxic gas is generated, which is environmentally friendly and hygienic, and the smoke generated during the combustion process is not easy to pollute the environment. In addition, the PP film 200 can also be recycled and degraded, thereby improving resource utilization.

[0047] The following embodiments illustrate the details of the flame retardant floor provided in the present application by way of examples.

[0048] In this embodiment, optionally, the shielding protrusion 130 has an outer side surface 131 away from the first side surface 110, and the PP film 200 extends to the outer side surface 131. The width of the shielding protrusion 130 is substantially consistent with the length of the first side surface 110, so that after the adjacent floors are spliced, the coverage area is large, it is not easy to have a position that is not covered, and the overall structure is compact.

[0049] When the pp film 200 is matched with the glass magnesium board substrate 100, the pp film 200 not only covers the top surface of the shielding protrusion 130, but also extends to the outer side surface 131 of the shielding protrusion 130 after passing through the top surface, that is, because the pp film 200 covers the top surface of the shielding protrusion 130 and also folds back to cover the outer side surface 131 of the shielding protrusion 130, it not only plays a good protective role on the glass magnesium board substrate 100 and the top surface of the shielding protrusion 130, and improves the overall strength of the floor, but also after the adjacent floors are spliced, the pp film 200 is partially clamped by the two floors, and the pp film 200 is not easy to peel off from the shielding protrusion 130, and the bonding ability is significantly improved. At the same time, because the outer side surface 131 of the shielding protrusion 130 is covered with the pp film 200, the side of the shielding protrusion 130 is given fireproof performance, and the fireproofness of the entire floor is improved.

[0050] Please combine Figure 3 Furthermore, the shielding protrusion 130 has an inner bottom surface 132 opposite to its own top surface, and the pp film 200 covers the outer side surface 131 and extends to the inner bottom surface 132. After the pp film 200 covers the outer side surface 131 of the shielding protrusion 130, it folds back to cover the inner bottom surface 132 of the shielding protrusion 130, further improving the bonding strength between the pp film 200 and the shielding protrusion 130. During the use of the floor, the pp film 200 is not easy to separate from the glass magnesium board substrate 100, and the service life is long.

[0051] Furthermore, the distance between the inner bottom surface 132 and the top surface of the shielding protrusion 130 gradually increases in a preset direction, which is a direction perpendicular to the first side surface 110 and away from the second side surface 120. In other words, the thickness of the shielding protrusion 130 gradually increases from the position where the shielding protrusion 130 is connected to the first side surface 110 to the position away from the first side surface 110. The shielding protrusion 130 is generally a structure with a thicker head and a narrower tail, forming an inverted structure. When adjacent floor panels are spliced, the shielding protrusion 130 and the receiving protrusion 140 bite each other to improve the bonding strength and improve the overall firmness.

[0052] It should be understood that the shape of the inner top surface 141 of the receiving protrusion 140 is roughly consistent with the shape of the inner bottom surface 132 of the shielding protrusion 130. When the receiving protrusion 140 and the shielding protrusion 130 are matched, the inner top surface 141 and the inner bottom surface 132 fit tightly and reliably.

[0053] Furthermore, the inner bottom surface 132 is connected to the first side surface 110 by an arc surface. The shielding protrusion 130 and the glass magnesium board substrate 100 are connected by an arc surface transition, which is not easy to have stress concentration, cracking or disconnection at the connection position, and has high structural strength and is safe and reliable to use.

[0054] In other embodiments, optionally, a first concave-convex structure 133 is provided on the inner bottom surface 132; the receiving protrusion 140 has an inner top surface 141 opposite to its own bottom surface, and a second concave-convex structure 142 is provided on the inner top surface 141, and the first concave-convex structure 133 is engaged with the corresponding second concave-convex structure 142. The first concave-convex structure 133 can be set as a circular groove or a circular protrusion. When the first concave-convex structure 133 is a circular groove, the second concave-convex structure 142 is correspondingly set as a circular protrusion. When the first concave-convex structure 133 is set as a circular protrusion, the second concave-convex structure 142 is correspondingly set as a circular groove.

[0055] With such a design, when adjacent floors are spliced ​​together, the inner bottom surface 132 of the shielding protrusion 130 fits with the outer top surface of the receiving protrusion 140, and the first concave-convex structure 133 and the second concave-convex structure 142 are snap-fitted together, further improving the bonding strength of the adjacent floors.

[0056] In this embodiment, optionally, the pp film 200 covers the first concavo-convex structure 133, and the first concavo-convex structure 133 is preferably set as a circular groove, so that the pp film 200 has a good effect when covering the first concavo-convex structure 133, and it is not easy to affect the coverage of the inner bottom surface 132 by the pp film 200. Part of the pp film 200 is clamped by the first concavo-convex structure 133 and the second concavo-convex structure 142, and the combination of the pp film 200 and the glass magnesium board substrate 100 is more firm and reliable, and the two are not easy to separate, and the protective effect is good.

[0057] In this embodiment, optionally, the side of the pp film 200 away from the shielding protrusion 130 is attached to the second side surface 120. One side of the pp film 200 is folded back on the outer side surface 131 and the inner bottom surface 132 of the shielding protrusion 130, and the other side of the pp film 200 is folded back on the second side surface 120. In this way, both sides of the pp film 200 are not easily separated from the main body of the glass magnesium board, and the protective effect is good.

[0058] In this embodiment, optionally, the thickness of the glass magnesium board substrate 100 is set to 10-18 mm. The thickness of the glass magnesium board substrate 100 is set reasonably, and the cost can be reduced under the premise of ensuring safety. For example, the thickness of the glass magnesium board substrate 100 can be set to 10 mm, 14 mm or 18 mm.

[0059] In this embodiment, optionally, the thickness of the PP film 200 is set to 50-100 μm. The thickness of the PP film 200 is set reasonably to reduce the cost while ensuring the protective performance. For example, the thickness of the PP film 200 is set to 50 μm, 75 μm or 100 μm.

[0060] It should be noted that PP film 200 is a surface decorative film made of polypropylene (PP for short). Glass magnesium board (commonly known as magnesium oxide board) is a magnesium gel material with stable performance, which is made of magnesium oxide, magnesium chloride and water ternary system, configured and modified by adding modifier, and is a new type of non-combustible decorative material compounded with medium alkaline glass fiber mesh as reinforcing material and light material (such as wood fiber) as filler.

[0061] It should be understood that the glass magnesium board substrate 100 can be a cubic structure, and the glass magnesium board substrate 100 has two pairs of side surfaces, and each pair of side surfaces can be provided with mutually matching shielding protrusions 130 and receiving protrusions 140, so as to improve the firmness of the floor.

[0062] The flame-retardant floor provided in this embodiment has a decorative surface layer made of PP film. After the PP film 200 is burned, it only releases water and carbon dioxide without producing any toxic gas. The floor carrier layer is set as a glass magnesium board substrate 100. The glass magnesium board substrate 100 has the advantages of high temperature resistance and non-combustibility, and the fire protection grade reaches A1, with good fire protection performance.

[0063] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flame retardant floor, characterized in that: include: A glass magnesium board substrate (100) and a PP film (200), wherein the glass magnesium board substrate (100) has at least one pair of first side surfaces (110) and second side surfaces (120) arranged opposite to each other, a shielding protrusion (130) is convexly provided on the first side surface (110), and the top surface of the shielding protrusion (130) is flush with the top surface of the glass magnesium board substrate (100); a receiving protrusion (140) is convexly provided on the second side surface (120), and the bottom surface of the receiving protrusion (140) is flush with the bottom surface of the glass magnesium board substrate (100); when adjacent glass magnesium board substrates (100) are spliced, the shielding protrusion (130) is engaged with the corresponding receiving protrusion (140), and the shielding protrusion (130) is located above the receiving protrusion (140); The PP film (200) covers both the top surface of the glass magnesium board substrate (100) and the top surface of the shielding protrusion (130).

2. The flame retardant floor according to claim 1, characterized in that: The shielding protrusion (130) has an outer side surface (131) away from the first side surface (110), and the PP film (200) extends to the outer side surface (131).

3. The flame retardant floor according to claim 2, characterized in that: The shielding protrusion (130) has an inner bottom surface (132) opposite to its own top surface, and the PP film (200) covers the outer side surface (131) and extends to the inner bottom surface (132).

4. The flame retardant floor according to claim 3, characterized in that: The distance between the inner bottom surface (132) and the top surface of the shielding protrusion (130) gradually increases in a preset direction, and the preset direction is a direction perpendicular to the first side surface (110) and away from the second side surface (120).

5. The flame retardant floor according to claim 3, characterized in that: The inner bottom surface (132) and the first side surface (110) are connected via an arc surface.

6. The flame retardant floor according to claim 3, characterized in that: The inner bottom surface (132) is provided with a first concave-convex structure (133); the receiving protrusion (140) has an inner top surface (141) opposite to its own bottom surface, and the inner top surface (141) is provided with a second concave-convex structure (142), and the first concave-convex structure (133) is snap-fitted with the corresponding second concave-convex structure (142).

7. The flame retardant floor according to claim 6, characterized in that: The pp film (200) covers the first concavo-convex structure (133).

8. The flame retardant floor according to claim 1, characterized in that: The side of the PP film (200) away from the shielding protrusion (130) is adhered to the second side surface (120).

9. The flame retardant floor according to claim 1, characterized in that: The thickness of the glass magnesium board substrate (100) is set to 10-18 mm.

10. The flame retardant floor according to claim 1, characterized in that: The thickness of the PP film (200) is set to 50-100 μm.

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