High-strength flame-retardant plywood

Abstract

The utility model discloses a high-strength flame-retardant plywood which comprises an inner layer used for supporting or cutting the plywood. The flame-retardant layer is fixedly mounted on the outer side of the inner layer and is used for blocking the plywood; and the outer layer is arranged on the outer side of the flame-retardant layer and is used for the plywood to be in contact with the external environment. The inner layer comprises the base frame and the filling frame, the base frame and the filling frame are arranged alternately, the base frame is used for connecting the inner layer and the flame-retardant layer, and the filling frame is used for cutting the plywood, so that the plywood can be used by cutting the filling frame or symmetrically cutting the base frame when the plywood needs to be cut. Due to the fact that the flame-retardant frames are fixedly installed on the two sides of the base frame, flame retardance can be conducted through the flame-retardant frames even if the filling frame is on fire, the situation that the flame-retardant performance of the board is lost due to cutting is avoided, and the comprehensive flame-retardant efficiency of the board is good.

Description

Technical Field

[0001] The utility model relates to the technical field of plywood, in particular to a high-strength flame-retardant plywood. Background Art

[0002] Plywood is a common building and furniture material, made from multiple layers of wood veneer bonded together with glue. It combines the strengths of wood with the properties of man-made panels, offering high strength and stability. Typically, plywood is composed of three or more layers of wood veneer (also known as the plywood core), with the grain of each layer aligned perpendicular to each other to enhance structural stability.

[0003] Existing plywood is often coated with fire-retardant coatings on the surface to make it flame-retardant. However, during construction, plywood will inevitably face the problem of being cut, resulting in fire on the cut surface of the plywood and the non-fire-retardant materials inside the plywood. There is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a high-strength flame-retardant plywood to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a high-strength flame-retardant plywood, comprising an inner layer, the inner layer being used for supporting or cutting the plywood;

[0006] a flame retardant layer, which is fixedly mounted on the outer side of the inner layer and provides fire retardant for the plywood; and

[0007] The outer layer is arranged on the outside of the flame retardant layer and is used for the plywood to contact the external environment

[0008] The inner layer includes a base frame and a filling frame, which are arranged alternately. The base frame is used to connect the inner layer and the flame retardant layer, and the filling frame is used for cutting plywood. The flame retardant layer includes a flame retardant board and a flame retardant frame. The outer sides of the flame retardant board and the flame retardant frame are coated with an expandable water-based modified amino resin coating.

[0009] As a further solution of the present invention: a high-strength flame-retardant plywood, the outer layer includes a wear-resistant plate, and the outer side of the wear-resistant plate is coated with wood wax oil.

[0010] As a further solution of the present invention: a high-strength flame-retardant plywood, the base frame is glued to the flame-retardant frame by an environmentally friendly adhesive, a first side protrusion is fixedly installed on one side of the base frame, and a second side protrusion is fixedly installed on the other side, and a matching groove 1 is opened in the gap between the first side protrusion and the second side protrusion, the flame-retardant frame includes a first side protrusion groove and a matching frame 1, the first side protrusion is adapted to the first side protrusion groove, and the matching frame 1 is adapted to the matching groove 1.

[0011] As a further solution of the present invention: a high-strength flame-retardant plywood, further comprising a connecting strip, wherein the base frame is glued to the connecting strip by an environmentally friendly adhesive, a small connecting opening and a large connecting opening are provided inside the connecting strip, a small opening groove and a large opening groove are provided inside the second side protrusion frame, the small connecting opening is adapted to the small opening groove, and the large connecting opening is adapted to the large opening groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Since the inner layer includes a base frame and a filling frame, the base frame and the filling frame are arranged alternately. The base frame is used to connect the inner layer and the flame retardant layer, and the filling frame is used for cutting the plywood. Therefore, when the plywood needs to be cut, the filling frame can be cut or the base frame can be cut symmetrically. Since the flame retardant frames are fixedly installed on both sides of the base frame, even if the filling frame catches fire, the flame retardant frame can still be used for flame retardancy. The board will not lose its flame retardant performance due to cutting, and the board has good comprehensive flame retardant performance.

[0014] 2. Through the coordinated arrangement of the base frame, flame retardant frame and connecting strips, good bonding fastness and strength of the flame retardant board can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a high-strength flame-retardant plywood of the utility model;

[0016] Figure 2 This is a structural diagram of a base frame, a flame retardant frame and a filling frame in a high-strength flame retardant plywood according to the present invention;

[0017] Figure 3 This is a structural diagram of a base frame and a flame retardant frame in a high-strength flame retardant plywood according to the present invention;

[0018] Figure 4 This is a structural diagram of a connecting strip in a high-strength flame-retardant plywood according to the present invention;

[0019] In the figure: 1. wear-resistant plate; 2. flame-retardant plate; 3. base frame; 31. first side protrusion frame; 32. second side protrusion frame; 33. matching groove 1; 34. small-mouth groove; 35. large-mouth groove; 4. flame-retardant frame; 41. first side protrusion frame groove; 42. matching frame 1; 5. filling frame; 6. connecting strip; 61. connecting small mouth; 62. connecting large mouth. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or connected in an integral manner; they can be mechanically connected or electrically connected; they can be directly connected, indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The following describes the embodiments of the present invention based on its overall structure.

[0022] In an embodiment of the present utility model, a high-strength flame-retardant plywood comprises an inner layer, wherein the inner layer is used for supporting or cutting the plywood;

[0023] a flame retardant layer, which is fixedly mounted on the outer side of the inner layer and provides fire retardant for the plywood; and

[0024] The outer layer is arranged on the outside of the flame retardant layer and is used for the plywood to contact with the external environment.

[0025] As a further solution of the present invention: a high-strength flame-retardant plywood, the inner layer includes a base frame 3 and a filling frame 5, the base frame 3 and the filling frame 5 are arranged alternately, the base frame 3 is used for connecting the inner layer and the flame-retardant layer, and the filling frame 5 is used for cutting plywood.

[0026] Other embodiments of the present invention: Since the inner layer includes a base frame 3 and a filling frame 5, the base frame 3 and the filling frame 5 are arranged alternately, the base frame 3 is used to connect the inner layer and the flame retardant layer, and the filling frame 5 is used for cutting plywood. Therefore, when the plywood needs to be cut, it can be used by cutting the filling frame 5 or symmetrically cutting the base frame 3. Since the flame retardant frames 4 are fixedly installed on both sides of the base frame 3, even if the filling frame 5 catches fire, it can still be flame-retarded by the flame retardant frames 4. The board will not lose its flame retardant performance due to being cut, and the board has good comprehensive flame retardant performance.

[0027] As a further solution of the present invention: a high-strength flame-retardant plywood, the flame-retardant layer includes a flame-retardant board 2 and a flame-retardant frame 4, and the outer sides of the flame-retardant board 2 and the flame-retardant frame 4 are coated with an expandable water-based modified amino resin coating.

[0028] Other embodiments of the present invention: The expandable water-based modified amino resin coating has been certified by the academic community and widely used in the market, as can be seen from the "Expandable Water-based Modified Amino Resin Wood Flame Retardant Coating" which has been cited 34 times.

[0029] As a further solution of the present invention: a high-strength flame-retardant plywood, the outer layer includes a wear-resistant plate 1, and the outer side of the wear-resistant plate 1 is coated with wood wax oil.

[0030] Other examples of this invention include: Wood wax oil, a more environmentally friendly option made primarily from natural plant oils and waxes. It not only protects wood but also nourishes it, enhancing its durability. Its advantages include being environmentally friendly and free of harmful chemicals; strong penetrating power, penetrating deep into the wood to provide deep protection; and enhancing the wood's natural texture.

[0031] As a further solution of the present invention: a high-strength flame-retardant plywood, the base frame 3 is glued to the flame-retardant frame 4 by an environmentally friendly adhesive, a first side protrusion 31 is fixedly installed on one side of the base frame 3, and a second side protrusion 32 is fixedly installed on the other side, and a matching groove 33 is opened in the gap between the first side protrusion 31 and the second side protrusion 32, the flame-retardant frame 4 includes a first side protrusion groove 41 and a matching frame 42, the first side protrusion 31 is adapted to the first side protrusion groove 41, and the matching frame 42 is adapted to the matching groove 33.

[0032] As a further solution of the present invention: a high-strength flame-retardant plywood, further comprising a connecting strip 6, wherein the base frame 3 is glued to the connecting strip 6 by an environmentally friendly adhesive, and a small connecting opening 61 and a large connecting opening 62 are provided inside the connecting strip 6, and a small opening groove 34 and a large opening groove 35 are provided inside the second side protrusion 32, wherein the small connecting opening 61 is adapted to the small opening groove 34, and the large connecting opening 62 is adapted to the large opening groove 35.

[0033] Other embodiments of the present invention: Through the coordinated arrangement of the base frame 3, the flame retardant frame 4 and the connecting strip 6, good adhesive fastening and strength of the flame retardant board can be achieved.

[0034] The working principle of the present invention is as follows: since the inner layer includes a base frame 3 and a filling frame 5, the base frame 3 and the filling frame 5 are alternately arranged, the base frame 3 is used for connecting the inner layer and the flame retardant layer, and the filling frame 5 is used for cutting the plywood. Therefore, when the plywood needs to be cut, the filling frame 5 can be cut or the base frame 3 can be cut symmetrically. Since the flame retardant frames 4 are fixedly installed on both sides of the base frame 3, even if the filling frame 5 catches fire, it can still be flame-retarded by the flame retardant frames 4. The board will not lose its flame retardant performance due to being cut, and the board has good comprehensive flame retardant performance.

[0035] By coordinating the base frame 3, the flame retardant frame 4 and the connecting strip 6, good bonding fastness and strength of the flame retardant board can be achieved.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-strength flame-retardant plywood, characterized in that: including an inner layer for supporting or cutting plywood; a flame retardant layer, which is fixedly mounted on the outer side of the inner layer and provides fire retardant for the plywood; and The outer layer is arranged on the outside of the flame retardant layer and is used for the plywood to contact the external environment The inner layer comprises a base frame (3) and a filling frame (5), the base frame (3) and the filling frame (5) being arranged alternately, the base frame (3) being used for connecting the inner layer and the flame retardant layer, and the filling frame (5) being used for cutting plywood, the flame retardant layer comprising a flame retardant board (2) and a flame retardant frame (4), the outer sides of the flame retardant board (2) and the flame retardant frame (4) being coated with an intumescent water-based modified amino resin coating.

2. The high-strength flame-retardant plywood according to claim 1, characterized in that: The outer layer comprises a wear-resistant plate (1), the outer side of the wear-resistant plate (1) being coated with wood wax oil.

3. The high-strength flame-retardant plywood according to claim 2, characterized in that: The base frame (3) is bonded to the flame retardant frame (4) by an environmentally friendly adhesive. A first side protrusion frame (31) is fixedly mounted on one side of the base frame (3), and a second side protrusion frame (32) is fixedly mounted on the other side. A matching groove (33) is provided in the gap between the first side protrusion frame (31) and the second side protrusion frame (32). The flame retardant frame (4) includes a first side protrusion frame groove (41) and a matching frame (42). The first side protrusion frame (31) is matched with the first side protrusion frame groove (41), and the matching frame (42) is matched with the matching groove (33).

4. The high-strength flame-retardant plywood according to claim 3, characterized in that: The base frame (3) further comprises a connecting strip (6), wherein the base frame (3) is bonded to the connecting strip (6) by an environmentally friendly adhesive, wherein a small connecting opening (61) and a large connecting opening (62) are provided inside the connecting strip (6), and a small opening groove (34) and a large opening groove (35) are provided inside the second side protrusion frame (32), wherein the small connecting opening (61) is adapted to the small opening groove (34), and the large connecting opening (62) is adapted to the large opening groove (35).

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