High-temperature-resistant flame-retardant multi-layer wood board

Abstract

The utility model relates to a wood board, in particular to a high-temperature-resistant flame-retardant multilayer wood board which comprises a board body and clamping structures arranged at the two ends of the board body, the board body comprises a solid wood board layer, a first clamping board layer is arranged on the upper end face of the solid wood board layer, a second clamping board layer is arranged on the lower end face of the solid wood board layer, and a first wear-resistant layer is arranged on the upper end face of the first clamping board layer. A second wear-resistant layer is arranged on the lower end face of the second plywood layer, grooves are formed in the upper end face and the lower end face of the solid wood board layer and filled with flame retardants, metal frames are arranged in the grooves, and bolt positioning pieces are arranged on the metal frames. The metal frame arranged in the groove can hold the filled flame retardant, so that the flame retardant is fully filled to two sides of the solid wood board layer, thereby effectively preventing the flame from spreading, reducing the fire risk and improving the safety of use places such as buildings, furniture and the like. In addition, the metal frame fixed in the groove can further play a role in reinforcing the solid wood board layer and the first plywood layer, the overall structural strength of the board body is improved, and safety is better.

Description

Technical Field

[0001] The utility model relates to a wooden board, in particular to a high-temperature resistant and flame-retardant multi-layer wooden board. Background Art

[0002] Flame-retardant multi-layer wooden boards, usually also known as flame-retardant multi-layer boards or flame-retardant plywood, are mainly based on multi-layer boards and added with flame retardants to improve their fire resistance performance. The boards treated with flame retardants can effectively prevent the spread of fire, reduce the fire risk, and improve the safety of places such as buildings and furniture.

[0003] For example, the Chinese patent with the application number CN202122131990.0 discloses a flame-retardant spliced composite solid wood board, including: a wrapping layer and a core board layer. The circumferential wall surface of the core board layer is covered with a wrapping layer. A reinforcing center board is axially penetrated in the core board layer. Filling materials are combined and spliced on the circumferential surface of the reinforcing center board. A flame-retardant layer and a wear-resistant layer are arranged in the wrapping layer. A solid wood plastic profile is arranged in the interval between the flame-retardant layer and the wear-resistant layer. This wooden board has the advantages of waterproof, anti-corrosion, and wear-resistant. However, since there is a hollow between the board pieces and the hollow area is supplemented by filling materials, when the wooden board is impacted, the boards near the hollow area will deform and break, thus generating potential safety hazards. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a high-temperature resistant and flame-retardant multi-layer wooden board to solve the disadvantages that the boards near the hollow area will deform and break when the existing wooden board is impacted, thus generating potential safety hazards.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: a high-temperature resistant and flame-retardant multi-layer wooden board, including a board main body and a clamping structure arranged at both ends of the board main body;

[0006] The board main body includes a solid wood board layer. A first clamping board layer is arranged on the upper end surface of the solid wood board layer. A second clamping board layer is arranged on the lower end surface of the solid wood board layer. A first wear-resistant layer is arranged on the upper end surface of the first clamping board layer. A second wear-resistant layer is arranged on the lower end surface of the second clamping board layer. The first wear-resistant layer, the first clamping board layer, the solid wood board layer, the second clamping board layer, and the second wear-resistant layer are fixedly connected by gluing;

[0007] Grooves are opened on the upper end surface and the lower end surface of the solid wood board layer. Flame retardants are filled in the grooves. A metal frame is arranged in the grooves. The metal frame is fixedly connected with the solid wood board layer. Bolt positioning parts for fixing the first clamping board layer and the second clamping board layer are arranged on the metal frame.

[0008] A further improvement lies in that: the engaging structure includes a first engaging portion and a second engaging portion. The first engaging portion and the solid wood board layer are respectively fixedly connected to the left and right ends of the solid wood board layer. An arc-shaped concave surface is formed on the upper end surface of the first engaging portion, and an arc-shaped convex surface is formed on the lower end surface of the second engaging portion. The arc-shaped concave surface is movably engaged with the arc-shaped convex surface.

[0009] A further improvement lies in that: the metal frame includes a plurality of first ribs arranged horizontally and a plurality of second ribs arranged vertically in the groove. Each first rib and each second rib are vertically staggered and form a number of cells. The first rib and the second rib are fixedly connected, and both the first rib and the second rib are fixedly connected to the solid wood board layer.

[0010] A further improvement lies in that: the bolt positioning member includes a plurality of pin holes formed in the first clamping plate layer and the second clamping plate layer. A fixing bolt is assembled in the pin hole. The fixing bolt passes through the pin hole and is threadedly connected to a positioning seat provided at the intersection of the first rib and the second rib.

[0011] A further improvement lies in that: the positioning seat includes a threaded seat. The threaded seat is fixedly connected to the intersection of the first rib and the second rib, and a threaded hole is formed in the upper end of the threaded seat.

[0012] A further improvement lies in that: the fixing bolt includes a threaded column. The threaded column is slidably connected to the pin hole. A knob head is provided at the upper end of the threaded column. External threads are formed on the outer side wall of the lower end of the knob head, and the external threads are threadedly connected to the threaded hole.

[0013] A further improvement lies in that: a flared groove is formed along the upper end edge of the pin hole, and the flared groove is movably engaged with the knob head.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The metal frame provided in the groove can hold the filled flame retardant, so that the flame retardant is fully filled on both sides of the solid wood board layer, thereby effectively preventing the spread of fire, reducing the fire risk, and improving the safety of use places such as buildings and furniture. The metal frame fixed in the groove can also play a role in strengthening the solid wood board layer and the first clamping plate layer, improving the overall structural strength of the board body, and having better safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a structural diagram of the board body in the present utility model.

[0018] Figure 2 It is the structural diagram of the solid wood board layer in the present utility model.

[0019] Figure 3 It is the structural diagram of the solid wood board layer in the present utility model.

[0020] Figure 4 It is the structural diagram of the first engaging portion in the present utility model.

[0021] Figure 5 It is the structural diagram of the second engaging portion in the present utility model.

[0022] Figure 6 It is the structural diagram of the pin hole in the present utility model.

[0023] Wherein: 1. board main body; 11. first wear-resistant layer; 12. first clamping plate layer; 13. solid wood board layer; 14. second clamping plate layer; 15. second wear-resistant layer; 131. groove; 2. engaging structure; 21. first engaging portion; 22. arc-shaped concave surface; 23. second engaging portion; 24. arc-shaped convex surface; 4. metal frame; 41. first rib; 42. second rib; 43. threaded seat; 44. threaded hole; 51. pin hole; 52. flared groove; 53. threaded post; 54. knob head; 55. external thread. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0025] According to Figure 1 , 2 , 3, 4, 5, 6, a high-temperature resistant and flame-retardant multi-layer wood board is proposed in this embodiment, including a board main body 1 and an engaging structure 2 provided at both ends of the board main body 1;

[0026] The board main body 1 includes a solid wood board layer 13, a first clamping plate layer 12 is provided on the upper end surface of the solid wood board layer 13, a second clamping plate layer 14 is provided on the lower end surface of the solid wood board layer 13, a first wear-resistant layer 11 is provided on the upper end surface of the first clamping plate layer 12, a second wear-resistant layer 15 is provided on the lower end surface of the second clamping plate layer 14, and the first wear-resistant layer 11, the first clamping plate layer 12, the solid wood board layer 13, the second clamping plate layer 14 and the second wear-resistant layer 15 are fixedly connected by gluing;

[0027] The board body 1 is formed by alternately stacking five layers of board members. The adjacent two board members are glued together with an adhesive, and the fiber directions are glued perpendicular to each other to form a firm integral structure.

[0028] The upper and lower end faces of the solid wood board layer 13 are provided with grooves 131. The grooves 131 are filled with a flame retardant. A metal frame 4 is provided in the grooves 131. The metal frame 4 is fixedly connected to the solid wood board layer 13, and a bolt positioning member for fixing the first splint layer 12 and the second splint layer 14 is provided on the metal frame 4.

[0029] The flame retardant is filled into the grooves 131 opened on the upper and lower end faces of the solid wood board layer 13. The metal frame 4 provided in the grooves 131 can hold the filled flame retardant, so that the flame retardant is fully filled on both sides of the solid wood board layer 13, thereby effectively preventing the spread of fire, reducing the fire risk, and improving the safety of places such as buildings and furniture. The metal frame 4 fixed in the grooves 131 can also play a role in strengthening the solid wood board layer 13 and the first splint layer 12, improving the overall structural strength of the board body 1, and having better safety.

[0030] For the specific structure of the clamping structure 2, please refer to the following description.

[0031] The clamping structure 2 includes a first clamping portion 21 and a second clamping portion 23. The first clamping portion 21 and the solid wood board layer 13 are respectively fixedly connected to the left and right ends of the solid wood board layer 13. An arc-shaped concave surface 22 is opened on the upper end surface of the first clamping portion 21, and an arc-shaped convex surface 24 is opened on the lower end surface of the second clamping portion 23. The arc-shaped concave surface 22 is movably matched with the arc-shaped convex surface 24.

[0032] The assembly method of the clamping structure 2 is as follows:

[0033] The first clamping portion 21 and the solid wood board layer 13 are integrally formed with the solid wood board layer 13. When two board bodies 1 are spliced together, the second clamping portion 23 on the solid wood board layer 13 will press on the first clamping portion 21 of another solid wood board layer 13. The second clamping portion 23 at the lower end of the second clamping portion 23 fits with the arc-shaped concave surface 22 at the upper end of the first clamping portion 21, increasing the tightness at the splicing place of the board body 1 and the board body 1.

[0034] Regarding the metal frame 4:

[0035] The metal frame 4 includes a plurality of first ribs 41 arranged horizontally and a plurality of second ribs 42 arranged vertically in the grooves 131. Each first rib 41 and each second rib 42 are vertically staggered and form a number of cells. The first rib 41 and the second rib 42 are fixedly connected, and both the first rib 41 and the second rib 42 are fixedly connected to the solid wood board layer 13.

[0036] The metal frame 4 composed of the first rib 41 and the second rib 42 is fixed in the groove 131 and used to support the solid wood board layer 13 from inside the solid wood board layer 13, strengthening the structural strength of the solid wood board layer 13 itself. The flame retardant filled in the groove 131 will be arranged in each cell formed between the first rib 41 and the second rib 42, enabling the flame retardant to be evenly filled on both sides of the solid wood board layer 13.

[0037] Regarding the bolt positioning member:

[0038] The bolt positioning member includes a plurality of pin holes 51 opened on the first clamping plate layer 12 and the second clamping plate layer 14. A fixing bolt is assembled in the pin hole 51. The fixing bolt passes through the pin hole 51 and is threadedly connected to the positioning seat provided at the intersection of the first rib 41 and the second rib 42.

[0039] Before the first wear-resistant layer 11 and the second wear-resistant layer 15 are spliced, first assemble the first clamping plate layer 12 and the solid wood board layer 13, and the second clamping plate layer 14 and the first clamping plate layer 12 together. The fixing bolt is assembled in the pin hole 51 and fixed to the positioning seat on the metal frame 4. Under the limitation of the fixing bolt and the positioning seat, the first clamping plate layer 12 and the second clamping plate layer 14 will maintain a tightly fitting state with the solid wood board layer 13.

[0040] Among them, the positioning seat includes a threaded seat 43. The threaded seat 43 is fixedly connected to the intersection of the first rib 41 and the second rib 42, and a threaded hole 44 is opened at the upper end of the threaded seat 43.

[0041] Among them, the fixing bolt includes a threaded column 53. The threaded column 53 is slidably connected to the pin hole 51. A knob head 54 is provided at the upper end of the threaded column 53. An external thread 55 is opened on the outer side wall of the lower end of the knob head 54, and the external thread 55 is threadedly connected to the threaded hole 44.

[0042] Insert the threaded column 53 into the pin hole 51, use a tool to rotate the knob head 54, and screw the lower end of the threaded column 53 into the threaded hole 44. The knob head 54 will press on the side of the first clamping plate layer 12 and the second clamping plate layer 14 away from the solid wood board layer 13, firmly fixing the first clamping plate layer 12 and the second clamping plate layer 14 to the solid wood board layer 13.

[0043] To prevent the knob head 54 exposed on the surfaces of the first clamping plate layer 12 and the second clamping plate layer 14 from affecting the assembly between the first wear-resistant layer 11 and the first clamping plate layer 12, and the second wear-resistant layer 15 and the second clamping plate layer 14, furthermore, a flared groove 52 is opened along the upper end of the pin hole 51, and the flared groove 52 is movably matched with the knob head 54. After the threaded column 53 is completely screwed into the threaded hole 44, the knob head 54 fixed to the upper end of the threaded column 53 will also sink into the flared groove 52 opened on the surfaces of the first clamping plate layer 12 and the second clamping plate layer 14, so that it will not affect the fitting between the first wear-resistant layer 11 and the first clamping plate layer 12, and the second wear-resistant layer 15 and the second clamping plate layer 14.

[0044] Working principle of this application:

[0045] The board body 1 is formed by alternately stacking five layers of board members. Adjacent board members are glued together with an adhesive, and the fiber directions are glued perpendicular to each other to form a firm overall structure.

[0046] The flame retardant is filled into the grooves 131 opened on the upper and lower end faces of the solid wood board layer 13. The metal frame 4 arranged in the grooves 131 can hold the filled flame retardant, so that the flame retardant is fully filled on both sides of the solid wood board layer 13, thereby effectively preventing the spread of fire, reducing the fire risk, and improving the safety of places such as buildings and furniture. The metal frame 4 fixed in the grooves 131 can also play a role in strengthening the solid wood board layer 13 and the first splint layer 12, improving the overall structural strength of the board body 1, and having better safety.

[0047] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] The above is only the specific implementation manner of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to these embodiments shown herein, but will conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A high temperature resistant and flame retardant multilayer wood board, comprising a board body (1) and a clamping structure (2) provided at both ends of the board body (1), characterized in that: The board body (1) comprises a solid wood board layer (13), the upper end surface of the solid wood board layer (13) is provided with a first plywood layer (12), the lower end surface of the solid wood board layer (13) is provided with a second plywood layer (14), the upper end surface of the first plywood layer (12) is provided with a first wear-resistant layer (11), the lower end surface of the second plywood layer (14) is provided with a second wear-resistant layer (15), and the first wear-resistant layer (11), the first plywood layer (12), the solid wood board layer (13), the second plywood layer (14) and the second wear-resistant layer (15) are glued and fixedly connected; The upper and lower end surfaces of the solid wood board layer (13) are provided with grooves (131), the grooves (131) are filled with flame retardant, a metal frame (4) is provided in the grooves (131), the metal frame (4) is fixedly connected to the solid wood board layer (13), and the metal frame (4) is provided with bolt positioning members for fixing the first plywood layer (12) and the second plywood layer (14).

2. The high temperature resistant and flame retardant multilayer wood board according to claim 1, characterized in that: The clamping structure (2) comprises a first clamping portion (21) and a second clamping portion (23); the first clamping portion (21) and the solid wood board layer (13) are respectively fixedly connected to the left and right ends of the solid wood board layer (13); the upper end surface of the first clamping portion (21) is provided with an arcuate concave surface (22); the lower end surface of the second clamping portion (23) is provided with an arcuate convex surface (24); the arcuate concave surface (22) and the arcuate convex surface (24) are movably matched.

3. The high temperature resistant and flame retardant multilayer wood board according to claim 1, characterized in that: The metal frame (4) comprises a plurality of first ribs (41) arranged transversely and a plurality of second ribs (42) arranged longitudinally, each of the first ribs (41) and each of the second ribs (42) being vertically staggered to form a plurality of cells, the first ribs (41) and the second ribs (42) being fixedly connected, and the first ribs (41) and the second ribs (42) being fixedly connected to the solid wood board layer (13).

4. The high temperature resistant and flame retardant multilayer wood board according to claim 3, characterized in that: The bolt positioning member includes a plurality of pin holes (51) opened on the first plywood layer (12) and the second plywood layer (14), wherein fixing bolts are installed in the pin holes (51), and the fixing bolts pass through the pin holes (51) and are threadedly connected to a positioning seat arranged at the intersection of the first rib (41) and the second rib (42).

5. The high temperature resistant and flame retardant multilayer wood board according to claim 4, characterized in that: The positioning seat comprises a threaded seat (43), the threaded seat (43) is fixedly connected to the intersection of the first rib (41) and the second rib (42), and a threaded hole (44) is formed at the upper end of the threaded seat (43).

6. The high temperature resistant and flame retardant multilayer wood board according to claim 5, characterized in that: The fixing bolt comprises a threaded column (53), the threaded column (53) is slidably connected to the pin hole (51), a knob head (54) is provided at the upper end of the threaded column (53), an outer wall at the lower end of the knob head (54) is provided with an external thread (55), and the external thread (55) is threadedly connected to the threaded hole (44).

7. The high temperature resistant and flame retardant multilayer wood board according to claim 6, characterized in that: An expansion groove (52) is provided along the upper end of the pin hole (51), and the expansion groove (52) is movably matched with the knob head (54).

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