Fiberboard capable of preventing thermal expansion and cold contraction at edge

Abstract

The utility model relates to the technical field of fiberboards, in particular to a fiberboard capable of preventing thermal expansion and cold contraction at the edge, which comprises a fiber bottom plate, a frame is arranged around the edge of the fiber bottom plate and extends perpendicular to the fiber bottom plate, the frame sequentially comprises a first coaming, a second coaming, a third coaming and a fourth coaming, and the first coaming, the second coaming, the third coaming and the fourth coaming are arranged on the fiber bottom plate. A plurality of first notches are formed in the upper surface of the first coaming and the upper surface of the third coaming at equal intervals, and a plurality of third notches are formed in the first coaming, the second coaming, the third coaming and the fourth coaming in a surrounding mode and extend towards the inner side of the fiber bottom plate; an inserting groove and a mounting groove are symmetrically formed in the outer side face of the second surrounding plate and the outer side face of the fourth surrounding plate, a rectangular groove is formed in the upper surface of the fiber bottom plate, and a heat preservation plate is arranged in the rectangular groove; through cooperation of the structure, the purpose of preventing thermal expansion and cold contraction at the edge of the fiberboard is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of fiberboard technology, specifically relating to a fiberboard that can prevent thermal expansion and contraction at the edges. Background Technology

[0002] Fiberboard, also known as medium-density fiberboard, is a type of engineered wood product made by interlacing wood cellulose fibers and utilizing their inherent adhesive properties. Fiberboard possesses excellent physical and mechanical properties, decorative properties, and processing performance, and is widely used in furniture and decorative items.

[0003] However, due to the physical properties of moisture and fibers in fiberboard, fiberboard is subject to thermal expansion and contraction under temperature changes, which can easily lead to bulges or gaps at the edges, affecting the overall aesthetics and structural stability. This thermal expansion and contraction phenomenon is particularly noticeable at the edges of the fiberboard. A fiberboard that can prevent thermal expansion and contraction at the edges is provided to alleviate the above-mentioned problems. Summary of the Invention

[0004] This utility model uses the cooperation of the first and third slots to absorb the deformation at the edge of the frame and the fiberboard base plate, thereby preventing thermal expansion and contraction at the edge of the fiberboard.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fiberboard designed to prevent thermal expansion and contraction at its edges includes a fiber base plate. The fiber base plate has a rectangular structure, and a frame is provided around its edge, extending perpendicularly to the fiber base plate. The frame includes a first side plate, a second side plate, a third side plate, and a fourth side plate. The upper surfaces of the first and third side plates each have a first slot, and several first slots are evenly spaced. The first, second, third, and fourth side plates each have multiple third slots extending inward toward the fiber base plate. The outer surfaces of the second and fourth side plates have symmetrically provided insertion slots and mounting slots. The upper surface of the fiber base plate has a rectangular groove, and an insulation board is provided inside the rectangular groove.

[0007] Preferably, a slider is connected in the mounting groove, and springs are connected to both sides of the slider. A plug-in rod is provided inside the spring on the side away from the fiber base plate, and an elastic rubber layer is fixedly installed on the inner wall of the plug-in groove.

[0008] Preferably, the inner sidewall of the rectangular groove is provided with multiple guide grooves, which are evenly distributed along the edge of the fiber base plate, and the sidewall of the insulation board is connected with multiple guide blocks.

[0009] Preferably, the top of the insulation board has a plurality of second slots, which are evenly distributed on the surface of the insulation board.

[0010] Preferably, a protective plate is provided above the insulation board, and a flame-retardant layer, a waterproof layer and an anti-wear layer are sequentially provided above the protective plate.

[0011] Compared with the prior art, the gain effect of this utility model is as follows:

[0012] 1. By setting the first and third slots, the fiber base plate can effectively absorb the deformation at the edge of the frame and the edge of the fiber base plate when it expands and contracts with heat, avoiding affecting structural deformation and thus extending the service life of the fiber base plate; by setting the insulation board and the second slot, the insulation effect of the fiber base plate can be improved and the risk of temperature changes can be reduced.

[0013] 2. By setting up plug-in rods, mounting slots, springs, sliders, elastic rubber layers, and plug-in slots, expansion and contraction space is reserved at the edges of the fiberboard, which can better adapt to thermal expansion and contraction at the edges caused by temperature changes, reduce structural stress and potential damage, and improve the service life of the fiberboard. Attached Figure Description

[0014] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0015] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0016] Figure 3 This is an embodiment of the present utility model. Figure 2 A schematic diagram of a partial structure of A;

[0017] Figure 4 This is a schematic diagram of the connection between adjacent partitions in an embodiment of this utility model.

[0018] In the diagram: 1. Fiber base plate; 2. First enclosure plate; 3. Second enclosure plate; 4. Third enclosure plate; 5. Fourth enclosure plate; 6. First slot; 7. Protective plate; 8. Rectangular slot; 9. Insulation board; 10. Second slot; 11. Guide slot; 12. Guide block; 13. Insert rod; 14. Mounting slot; 15. Spring; 16. Slider; 17. Elastic rubber layer; 18. Insert slot; 19. Third slot. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. Those skilled in the art will recognize that this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it.

[0022] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. It should also be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances; any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, so as to facilitate a clearer understanding of the present invention.

[0024] Please see Figure 1-4 A fiberboard designed to prevent thermal expansion and contraction at its edges includes a fiber base plate 1, which is rectangular in shape. A border is arranged around the edge of the fiber base plate 1, extending perpendicularly to it. The border includes a first surrounding plate 2, a second surrounding plate 3, a third surrounding plate 4, and a fourth surrounding plate 5. The upper surfaces of the first surrounding plate 2 and the third surrounding plate 4 each have a first slot 6, with several slots 6 evenly spaced. Multiple third slots 19 are also arranged around the first surrounding plate 2, the second surrounding plate 3, the third surrounding plate 4, and the fourth surrounding plate 5, extending inwards towards the fiber base plate 1. When thermal expansion and contraction occur at the edge of the fiber base plate 1, the difference in expansion between the fiber base plate 1 and the border can easily lead to cracks and deformation at the joint. By providing the first slots 6 and the third slots 19, the deformation at the edge of the border and the fiber base plate 1 can be effectively absorbed, preventing structural deformation.

[0025] Please see Figure 1-4A rectangular groove 8 is provided on the upper surface of the fiber base plate 1. An insulation board 9 is provided inside the rectangular groove 8 to improve the insulation effect of the fiber board. Multiple guide grooves 11 are provided on the inner side wall of the rectangular groove 8 to stabilize the insulation board 9. The multiple guide grooves 11 are evenly distributed along the edge of the fiber base plate 1. Multiple guide blocks 12 that match the guide grooves 11 are fixedly connected to the side wall of the insulation board 9. The guide blocks 12 and the guide grooves 11 are slidably connected.

[0026] Furthermore, the top of the insulation board 9 is provided with multiple second slots 10 to facilitate thermal expansion and contraction. The multiple second slots 10 are evenly distributed on the surface of the insulation board 9. A protective plate 7 for the enclosed integral device is provided above the insulation board 9. A flame-retardant layer, a waterproof layer and an anti-wear layer are sequentially provided above the protective plate 7, which can effectively improve the flame-retardant performance, waterproof performance and wear resistance of the limiting plate, thereby extending the service life of the limiting plate.

[0027] Please see Figure 1-4 The second enclosure 3 and the fourth enclosure 5 are symmetrically provided with insertion slots 18 and mounting slots 14 on their outer surfaces. A slider 16 is slidably connected inside the mounting slot 14. Springs 15 are fixedly connected to both sides of the slider 16. The ends of the springs 15 on both sides away from the slider 16 are fixedly connected to the inner wall of the mounting slot 14 and are in a compressed state and balanced with each other. The slider 16 is located in the middle of the mounting slot 14 when there is no external force interference. An insertion rod 13 is provided inside the spring 15 on the side away from the fiber base plate 1. One end of the insertion rod 13 is fixedly connected to the slider 16, and the other end of the insertion rod 13 passes through the mounting slot 14 and cooperates with the insertion slot 18 on the adjacent second enclosure 3.

[0028] Please see Figure 1-4 An elastic rubber layer 17 is fixedly installed on the inner wall of the insertion groove 18. The elastic rubber layer 17 can limit the insertion of the fiber base plates 1 on both sides. The elasticity of the elastic rubber layer 17 can prevent the insertion groove 18 from squeezing the insertion rod 13 due to thermal expansion and contraction.

[0029] Working principle: During use, when the fiberboard is installed on the working surface and aligns with another fiberboard base plate 1, the insertion rod 13 engages with the insertion slot 18. As time progresses and temperature changes, if the edge of the fiberboard base plate 1 expands or contracts due to heat, the first slot 6 and the third slot 19 can effectively absorb the deformation at the edge of the frame and the fiberboard base plate 1. At the same time, the fiberboard base plate 1 can drive the third enclosure plate 4 and the second enclosure plate 3 on one side to deform outward or contract inward, so that the insertion rod 13 drives the slider 16 to overcome the elastic force of the spring 15 and slide into the mounting slot 14 on the third enclosure plate 4. Furthermore, through the elasticity of the elastic rubber layer 17, it can better adapt to the thermal expansion and contraction at the edge caused by temperature changes, reducing the resulting structural stress and potential damage, and improving the service life of the fiberboard.

Claims

1. A fiberboard that prevents thermal expansion and contraction at its edges, characterized in that, The system includes a fiber base plate (1), which is rectangular in structure. A frame is provided around the edge of the fiber base plate (1), and the frame extends perpendicularly to the fiber base plate (1). The frame includes a first enclosure plate (2), a second enclosure plate (3), a third enclosure plate (4), and a fourth enclosure plate (5) in sequence. A first slot (6) is provided on the upper surface of the first enclosure plate (2) and the third enclosure plate (4). Several first slots (6) are provided at equal intervals. Multiple third slots (19) are provided around the first enclosure plate (2), the second enclosure plate (3), the third enclosure plate (4), and the fourth enclosure plate (5), and extend to the inside of the fiber base plate (1). Insertion slots (18) and installation slots (14) are symmetrically provided on the outer surfaces of the second enclosure plate (3) and the fourth enclosure plate (5). A rectangular groove (8) is provided on the upper surface of the fiber base plate (1), and an insulation board (9) is provided inside the rectangular groove (8).

2. The fiberboard according to claim 1, which is resistant to thermal expansion and contraction at the edges, is characterized in that, A slider (16) is connected inside the mounting groove (14). Springs (15) are connected to both sides of the slider (16). A plug rod (13) is provided inside the spring (15) on the side away from the fiber base plate (1). An elastic rubber layer (17) is fixedly installed on the inner wall of the plug groove (18).

3. The fiberboard according to claim 1, characterized in that, The inner sidewall of the rectangular groove (8) is provided with a plurality of guide grooves (11), which are evenly distributed along the edge of the fiber base plate (1). The sidewall of the insulation board (9) is connected with a plurality of guide blocks (12).

4. A fiberboard according to claim 1 that prevents thermal expansion and contraction at the edges, characterized in that, The top of the insulation board (9) is provided with a plurality of second slots (10), and the plurality of second slots (10) are evenly distributed on the surface of the insulation board (9).

5. A fiberboard according to claim 1 that prevents thermal expansion and contraction at the edges, characterized in that, A protective plate (7) is provided above the insulation board (9), and a flame-retardant layer, a waterproof layer and an anti-wear layer are sequentially provided above the protective plate (7).

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