An improved bamboo panel based on 3D carving

By using 3D-carved bamboo panels and foam layers, the problem of bamboo panels warping and cracking under temperature and humidity changes has been solved, enabling convenient replacement and structural stability, and enhancing the flexibility and overall stability of the bamboo panels.

CN121295890BActive Publication Date: 2026-04-03CSCEC STRAIT CONSTR & DEV +4
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing bamboo panels are prone to warping and cracking in environments with large temperature and humidity changes, and the replacement process can easily damage surrounding bamboo panels.

Method used

The bamboo panel unit, designed with 3D carving, includes a rectangular array of deformation grooves, connecting grooves, positioning protrusions, and a waterproof foam layer. The bamboo panel is fixed and replaced through a motor-driven screw transmission system. The design of deformation grooves and connecting grooves increases flexibility, and the partial replacement of the foam layer does not affect the surrounding structure.

Benefits of technology

It improves the flexibility and adaptability of bamboo boards, reduces the risk of warping and cracking, and enables convenient replacement of bamboo boards without damaging the surrounding structure.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121295890B_ABST
    Figure CN121295890B_ABST
Patent Text Reader

Abstract

This invention relates to the field of bamboo panels and discloses a structurally improved bamboo panel based on 3D carving. The bamboo panel body includes individual bamboo panels mounted on a concrete layer and connecting plates. A connecting plate is provided between every two adjacent bamboo panels, and the connecting plate abuts against the bamboo panel. The lower end of each bamboo panel has a rectangular array of multiple deformation grooves, with adjacent deformation grooves connected by connecting grooves. The upper horizontal plane of the bamboo panel and the upper horizontal plane of the connecting plate are at the same level. The design of the multiple deformation grooves in the rectangular array at the lower end of the bamboo panel and the connecting grooves between adjacent deformation grooves in this invention can effectively increase the flexibility and adaptability of the bamboo panel. When the ambient temperature and humidity change, these deformation grooves allow the bamboo panel to self-adjust to a certain extent, reducing stress concentration caused by expansion or contraction, thereby reducing the risk of warping and cracking.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of bamboo panels, specifically a structurally improved bamboo panel based on 3D carving. Background Technology

[0002] While bamboo flooring has advantages such as being environmentally friendly, having high hardness, and beautiful texture, it still has some inherent structural defects. After installation, in environments with large temperature and humidity fluctuations, bamboo flooring is prone to warping, cracking, expansion, or contraction, causing changes in the gaps between the bamboo panels. This is especially noticeable in dry northern regions or humid southern regions. Furthermore, when bamboo flooring warps, cracks, expands, or contracts, it needs to be replaced. However, existing bamboo flooring replacement techniques can damage the bamboo panels surrounding the replaced panel during the replacement process. Summary of the Invention

[0003] This invention provides a structurally improved bamboo board based on 3D carving, which overcomes the shortcomings described in the background art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] An improved bamboo board based on 3D carving includes a bamboo board body and a frame for processing the bamboo board body. The bamboo board body is fixed to the frame via a fixed platform. The frame includes a movable truss, pillars, and a cutting device. The pillars are symmetrically arranged. The movable truss is fixed above the two pillars. The cutting device is located directly above the movable truss. Each pillar contains a lead screw, which is driven to rotate by a motor. The fixed platform is connected to the lead screw via lead screw sliders on both sides, forming a lead screw transmission connection, so that the fixed platform can be raised and lowered by a motor.

[0006] The bamboo board body includes individual bamboo boards installed on a concrete layer and connecting plates. A connecting plate is provided between every two adjacent individual bamboo boards, and the connecting plate abuts against the individual bamboo boards.

[0007] The lower end of the bamboo board unit has a rectangular array of multiple deformation grooves, and adjacent deformation grooves are connected by a connecting groove. The upper horizontal plane of the bamboo board unit is the same as the upper horizontal plane of the connecting plate.

[0008] In a preferred embodiment, both sides of the bamboo board unit are provided with inclined surfaces. When the bamboo board body is installed, the connecting plate abuts against the adjacent inclined surfaces. Multiple connecting channels are arranged equidistantly on the surface of the inclined surfaces. The lower end of the connecting plate is provided with positioning grooves II corresponding to each connecting channel. When the connecting plate is fixed on the bamboo board unit, the connecting channels are embedded in the positioning grooves II. The extension direction of the connecting channels is perpendicular to the length direction of the connecting plate.

[0009] In a preferred embodiment, a waterproof layer and a foaming layer are provided between the bamboo board body and the concrete layer. The waterproof layer covers the surface of the concrete layer, while the foaming layer is located between the bamboo board body and the waterproof layer. The lower middle part of the bamboo board unit is provided with an outwardly protruding positioning protrusion. When the bamboo board unit is installed and the foaming layer is squeezed between the bamboo board body and the waterproof layer and foamed, a mating groove is formed on the surface of the foaming layer at the corresponding position of the positioning protrusion.

[0010] In a preferred embodiment, when one of the connecting plates abuts against two adjacent bamboo board units, a gap is formed between the two adjacent bamboo board units for extruding and foaming the foaming adhesive layer. This gap is connected to the deformation groove adjacent to the lower side of the bamboo board unit through the connecting channels provided on both sides.

[0011] In a preferred embodiment, the bamboo board unit is composed of an upper cover plate and a lower board body. The upper cover plate is placed on top of the lower board body. The deformation groove, the connecting groove, and the positioning protrusion are disposed at the lower end of the lower board body. The connecting channel is composed of a section one disposed on the surface of the upper cover plate and a section two disposed on the surface of the lower board body.

[0012] In a preferred embodiment, the fixing platform includes a U-shaped frame, a second motor, and a clamping bracket. The U-shaped frame is connected to the lead screw via lead screw sliders on both sides. The second motor and the clamping bracket are both fixed to the surface of the U-shaped frame, and the bamboo board body is fixed by the second motor and the clamping bracket. The clamping bracket is provided with a threaded top rod. The output shaft of the second motor and the rotating shaft at the end of the threaded top rod respectively abut against the positioning grooves on both sides of the bamboo board body.

[0013] In a preferred embodiment, the surface of the connecting plate is provided with an injection port, which is connected to the gap between two adjacent bamboo board units.

[0014] Compared with existing technologies, this technical solution has the following advantages:

[0015] The rectangular array of multiple deformation grooves at the lower end of the bamboo board unit in this invention, as well as the connecting grooves between adjacent deformation grooves, can effectively increase the flexibility and adaptability of the bamboo board. When the ambient temperature and humidity change, these deformation grooves allow the bamboo board to self-adjust to a certain extent, reducing stress concentration caused by expansion or contraction, thereby reducing the risk of warping and cracking.

[0016] When a bamboo panel needs to be replaced due to localized damage in the future, only the two connecting plates connected to it need to be removed. The target bamboo panel can then be lifted upwards, and its positioning protrusion will detach from the molding structure in the foam layer. Since the foam has a certain degree of elasticity and the damage is concentrated in a localized area, it will not affect the integrity of the surrounding area. After the replacement is completed, the new bamboo panel can be re-pressed in along the original path, and the positioning protrusion will be re-embedded in the existing structure, restoring the original positioning accuracy and sealing performance. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is an overall diagram of the present invention.

[0019] Figure 2 This is a top view of the mounting platform and the bamboo panel itself.

[0020] Figure 3 This is a schematic diagram of the bamboo board itself.

[0021] Figure 4 This is a schematic diagram showing the disassembly of the bamboo board.

[0022] Figure 5 This is a structural diagram of a single bamboo panel and its connecting plate.

[0023] Figure 6 for Figure 5 A diagram from another perspective.

[0024] Figure 7 This is a schematic diagram of the connecting plate.

[0025] Figure 8 for Figure 4 Enlarged schematic diagram of point a in the middle.

[0026] Figure 9 This is a schematic diagram of a connecting plate structure with an injection port.

[0027] Figure 10 This is a schematic diagram of a single bamboo board structure.

[0028] In the diagram: Frame 1, Fixing platform 2, Bamboo board body 3, Concrete layer 100, Waterproof layer 200, Foam layer 300, Fitting groove 301;

[0029] 11. Movable truss; 12. Support column; 121. Lead screw; 13. Cutting device; 14. Motor.

[0030] 21. Recurved frame; 22. Motor II; 23. Clamping bracket; 231. Threaded push rod; 232. Rotating shaft; 24. Lead screw and slider.

[0031] Bamboo board unit 31, deformation groove 311, connecting groove 312, positioning protrusion 313, positioning groove one 314, connecting channel 315, connecting plate 32, positioning groove two 321, injection port 322;

[0032] Upper cover plate a31, lower plate body b31. Detailed Implementation

[0033] like Figures 1 to 10As shown, this invention proposes a structurally improved bamboo board based on 3D carving, including a bamboo board body 3 and a frame 1 for processing the bamboo board body 3. The bamboo board body 3 is fixed to the frame 1 by a fixed platform 2. The frame 1 includes a movable truss 11, a support column 12, and a cutting device 13. The support columns 12 are symmetrically arranged. The movable truss 11 is fixed above the two support columns 12. The cutting device 13 is located directly above the movable truss 11. A lead screw 121 is provided inside the support column 12. The lead screw 121 is driven to rotate by a motor 14. The fixed platform 2 is connected to the lead screw 121 by lead screw sliders 24 arranged on both sides to form a lead screw transmission connection, so as to drive the fixed platform 2 to rise and fall by the motor 14.

[0034] The bamboo board body 3 includes a bamboo board unit 31 installed on the concrete layer 100 and a connecting plate 32. A connecting plate 32 is provided between every two adjacent bamboo board units 31, and the connecting plate 32 abuts against the bamboo board unit 31.

[0035] The lower end of the bamboo board unit 31 has a rectangular array of multiple deformation grooves 311, and adjacent deformation grooves 311 are connected by a connecting groove 312. The upper horizontal plane of the bamboo board unit 31 and the upper horizontal plane of the connecting plate 32 are the same horizontal plane.

[0036] The design of multiple deformation grooves 311 in a rectangular array at the lower end of the bamboo board unit 31, as well as the connecting grooves 312 between adjacent deformation grooves, can effectively increase the flexibility and adaptability of the bamboo board. When the ambient temperature and humidity change, these deformation grooves allow the bamboo board to self-adjust to a certain extent, reducing stress concentration caused by expansion or contraction, thereby reducing the risk of warping and cracking.

[0037] Furthermore, a connecting plate 32 is provided between every two adjacent bamboo panel units 31. The design of the connecting plate 32 abutting against the bamboo panel unit 31 can form a buffer zone between the bamboo panels, further dispersing the stress caused by temperature and humidity changes, helping to maintain the stability of the gap between the bamboo panels, and avoiding overall deformation caused by the bamboo panel being subjected to force alone. In addition, when it is necessary to replace a bamboo panel unit 31, the damaged bamboo panel can be replaced more conveniently by removing the corresponding connecting plate 32 without damaging the surrounding bamboo panels.

[0038] Furthermore, both sides of the bamboo panel unit 31 are provided with inclined surfaces. When the bamboo panel body 3 is installed, the connecting plate 32 abuts against the adjacent inclined surfaces. Multiple connecting channels 315 are equidistantly arranged on the surface of these inclined surfaces. A positioning groove 321 is provided at the lower end of the connecting plate 32 corresponding to each connecting channel 315. When the connecting plate 32 is fixed to the bamboo panel unit 31, the connecting channels 315 are embedded in the positioning groove 321. The extension direction of the connecting channels 315 is perpendicular to the length direction of the connecting plate 32. The inclined surface design on both sides of the bamboo panel unit 31 serves as a guide during installation, allowing adjacent bamboo panel units to be aligned more precisely. This design reduces potential misalignment during installation, ensuring the overall aesthetics and neatness of the bamboo panel installation. Furthermore, the multiple connecting channels 315 equidistantly arranged on the inclined surfaces are embedded into the corresponding positioning grooves 321 at the lower end of the connecting plate when the connecting plate 32 abuts against the bamboo panel unit 31. In this way, not only is the contact area between the connecting plate and the bamboo panel increased, but also the mechanical locking effect is greatly enhanced because the extension direction of the connecting channel is perpendicular to the length direction of the connecting plate, thereby improving the stability of the overall structure.

[0039] Furthermore, a waterproof layer 200 and a foaming layer 300 are provided between the bamboo board body 3 and the concrete layer 100. The waterproof layer 200 covers the surface of the concrete layer 100, while the foaming layer 300 is disposed between the bamboo board body 3 and the waterproof layer 200. The lower end of the bamboo board unit 31 is provided with an outwardly protruding positioning protrusion 313. When the bamboo board unit 31 is installed and the foaming layer 300 is squeezed into the space between the bamboo board body 3 and the waterproof layer 200 and foamed, a mating groove 301 is formed on the surface of the foaming layer 300 at the corresponding position of the positioning protrusion 313.

[0040] When one of the connecting plates 32 abuts against its two adjacent bamboo board units 31, a gap is formed between the two adjacent bamboo board units 31 for extruding the foaming adhesive layer 300 and foaming. This gap is connected to the deformation groove 311 adjacent to the lower side of the bamboo board unit 31 through the connecting channels 315 provided on both sides.

[0041] Based on the above, during the installation of the bamboo board body 3, a waterproof layer 200 is first laid on the surface of the concrete layer 100 to prevent ground moisture from seeping upwards; then the bamboo board body 3 is placed on the waterproof layer. The bamboo board body is composed of multiple bamboo board units 31 and connecting plates 32 placed between them. Since there is a gap between each pair of adjacent bamboo board units 31, it serves as a channel for injecting expanding foam. At this time, expanding foam material is squeezed into the space between the bamboo board body 3 and the waterproof layer 200. The expanding foam flows into the deformation grooves 311 distributed in a rectangular array at the bottom of the bamboo board units 31 through the connecting channels 315 on both sides, so as to achieve uniform filling and support of the entire bottom area. During this process, the positioning protrusion 313 located at the lower center of the bamboo panel 31 is simultaneously embedded in the uncured expanding foam. After the foam expands and fully cures, a molding groove 301 matching the shape of the positioning protrusion is formed on its surface, thus uniquely determining the installation position of the bamboo panel in physical space, ensuring precise alignment during subsequent repositioning and preventing misalignment. Simultaneously, the two ends of the connecting plate 32 abut against the inclined surfaces of the adjacent bamboo panel 31, and interlock with the connecting channel 315 on the bamboo panel through the positioning groove 321 at its lower end, forming a lateral constraint that effectively prevents lateral sliding during installation and enhances the overall structural stability. When a bamboo board unit 31 needs to be replaced due to local damage in the future, only the two connecting plates 32 connected to it need to be removed. The target bamboo board can then be taken out upwards, and its positioning protrusion 313 will detach from the molding structure mating groove 301 in the foam layer. Since the foam has a certain elasticity and the damage is concentrated in a local area, it will not affect the integrity of the surrounding area. After the replacement is completed, the new bamboo board unit can be pressed back in along the original path, and the positioning protrusion will be embedded again into the existing mating groove 301, restoring the original positioning accuracy and sealing performance.

[0042] Furthermore, the bamboo board unit 31 is composed of an upper cover plate a31 and a lower board body b31. The upper cover plate a31 covers the lower board body b31. The deformation groove 311, the connecting groove 312, and the positioning protrusion 313 are set at the lower end of the lower board body b31. The connecting channel 315 is composed of a section one set on the surface of the upper cover plate a31 and a section two set on the surface of the lower board body b31. The lower board body b31 mainly undertakes the functions of support, positioning, and deformation adjustment. Its lower end is integrated with a rectangular array of deformation grooves 311, a connecting groove 312 connecting adjacent deformation grooves, and a positioning protrusion 313 located in the middle and protruding outward. These structures work together to allow the bamboo board to release stress through the internal cavity when the temperature and humidity change, reducing the risk of warping and cracking. At the same time, the positioning protrusion and the molding structure formed after the foam adhesive layer is cured cooperate with the groove 301 to achieve unique locking of the installation position.

[0043] Furthermore, the surface of the connecting plate 32 is provided with an injection port 322, which is connected to the gap between two adjacent bamboo board units 31. During installation, the connecting plate 32 with the injection port 322 can also be replaced so that the foaming agent can be squeezed into the space between the bamboo board body 3 and the waterproof layer 200 through the injection port 322.

[0044] Furthermore, the fixing platform 2 includes a U-shaped frame 21, a second motor 22, and a clamping bracket 23. The U-shaped frame 21 is connected to the lead screw 121 by lead screw sliders 24 provided on both sides. The second motor 22 and the clamping bracket 23 are both fixed to the surface of the U-shaped frame 21, and the bamboo board body 3 is fixed by the second motor 22 and the clamping bracket 23. The clamping bracket 23 is provided with a threaded top rod 231. The output shaft of the second motor 22 and the rotating shaft 232 provided at the end of the threaded top rod 231 respectively abut against the positioning grooves 314 on both sides of the bamboo board body 31.

[0045] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A structurally improved bamboo board based on 3D carving, characterized in that, The device includes a bamboo board body and a frame for processing the bamboo board body. The bamboo board body is fixed to the frame via a fixed platform. The frame includes a movable truss, support columns, and a cutting device. The support columns are symmetrically arranged. The movable truss is fixed above the two support columns. The cutting device is located directly above the movable truss. Each support column contains a lead screw, which is driven to rotate by a motor. The fixed platform is connected to the lead screw via lead screw sliders on both sides, allowing the fixed platform to be raised and lowered by a motor. The bamboo board body includes individual bamboo boards installed on a concrete layer and connecting plates. A connecting plate is provided between every two adjacent individual bamboo boards, and the connecting plate abuts against the individual bamboo boards. The lower end of the bamboo board unit has a rectangular array of multiple deformation grooves, and adjacent deformation grooves are connected by a connecting groove. The upper horizontal plane of the bamboo board unit is the same as the upper horizontal plane of the connecting plate.

2. The improved bamboo board based on 3D carving according to claim 1, characterized in that, Both sides of the bamboo board unit are provided with inclined surfaces. When the bamboo board body is installed, the connecting plate abuts against the adjacent inclined surface. Multiple connecting channels are arranged equidistantly on the surface of the inclined surface. The lower end of the connecting plate is provided with positioning grooves II corresponding to each connecting channel. When the connecting plate is fixed on the bamboo board unit, the connecting channel is embedded in the positioning groove II. The extension direction of the connecting channel is perpendicular to the length direction of the connecting plate.

3. The improved bamboo board based on 3D carving according to claim 2, characterized in that, A waterproof layer and a foaming layer are provided between the bamboo board body and the concrete layer. The waterproof layer covers the surface of the concrete layer, while the foaming layer is placed between the bamboo board body and the waterproof layer. The lower middle part of the bamboo board unit has an outwardly protruding positioning protrusion. When the bamboo board unit is installed and the foaming layer is squeezed between the bamboo board body and the waterproof layer and foamed, a matching groove is formed on the surface of the foaming layer at the corresponding position of the positioning protrusion.

4. The improved bamboo board based on 3D carving according to claim 3, characterized in that, When one of the connecting plates abuts against its two adjacent bamboo board units, a gap is formed between the two adjacent bamboo board units for extruding and foaming the foaming layer. This gap is connected to the deformation groove on the lower side of the bamboo board unit through the connecting channels provided on both sides.

5. The improved bamboo board based on 3D carving according to claim 4, characterized in that, The bamboo board unit is composed of an upper cover plate a and a lower board body b. The upper cover plate a is placed on top of the lower board body b. The deformation groove, the connecting groove and the positioning protrusion are arranged at the lower end of the lower board body b. The connecting channel is composed of a section one arranged on the surface of the upper cover plate a and a section two arranged on the surface of the lower board body b.

6. The improved bamboo board based on 3D carving according to claim 5, characterized in that, The fixing platform includes a U-shaped frame, a second motor, and a clamping bracket. The U-shaped frame is connected to the lead screw via lead screw sliders on both sides. The second motor and the clamping bracket are both fixed to the surface of the U-shaped frame, and the bamboo board body is fixed by the second motor and the clamping bracket. The clamping bracket is provided with a threaded top rod. The output shaft of the second motor and the rotating shaft at the end of the threaded top rod abut against the positioning grooves on both sides of the bamboo board body.

7. The improved bamboo board based on 3D carving according to claim 4, characterized in that, The surface of the connecting plate is provided with an injection port, which is connected to the gap between two adjacent bamboo board units.

Citation Information

Patent Citations

  • Bamboo plywood beam structure

    CN102561168A

  • High-toughness composite bamboo floor

    CN110439212A