Single and double-layered steel plastic keel integrated elastic wood floor

Abstract

The application uses an elliptical connector or an arc-shaped connector to cut the longitudinal wood diameter of wood in a staggered manner, leaving space for the longitudinal expansion of the wood, and simultaneously serving as a mounting hole of the connector. Steel keels, connectors and wood floors are firmly connected into one body. The elliptical connector is embedded in the plastic PVC-M keel and is injection molded. The wood floor is firmly connected. The wood diameter is cut in a staggered vertical cutting manner between the keels, leaving space for the radial expansion of the wood. The connection between the boards adopts a positive and negative tooth keel integrated technology, which is convenient for the installation of super large boards. The design of super large boards is convenient and convenient for printing any pattern, and the use space of the wood floor is improved.

Description

Technical Field

[0001] This invention relates to the field of wood flooring manufacturing and installation, and particularly to technical improvements in sports wood flooring, residential wood flooring, and commercial wood flooring, enhancing their elasticity and expanding their decorative effects. Background Technology

[0002] Sports wood flooring: Current technology and processes are complex, designs are time-consuming to install, and maintenance is difficult. It also has high requirements for the environment and is prone to deformation. Residential and commercial wood flooring has poor foot feel; multi-layer wood flooring is environmentally unfriendly; and there are few decorative patterns available, often with limited variety. Wood flooring also has narrow surface widths, numerous seams, and is difficult to clean. Few varieties are suitable for underfloor heating, and the prices are high. To address these issues, developing a custom-designed integrated wood flooring that is quick to install, has a wide surface area, is extra-long, and is resistant to deformation has become a pressing technical challenge for the industry. Summary of the Invention

[0003] The integrated resilient wood flooring of this invention can effectively solve the pain points of current sports wood flooring on the market, as well as the pain points of current household and commercial wood flooring on the market. It can achieve large width, extra length, quick installation, rich and colorful decorative patterns, and convenient maintenance.

[0004] Technical solution for integrating single-layer panels with steel-plastic keel and elliptical connectors 1. The wooden floor structure in this technical solution consists of two layers: a. Board layer, b. Keel layer.

[0005] Drill oval holes on the back of the board layer according to the design requirements; Connection method between the sheet material layer and the keel layer: bolt fastening connection; The surface of the board layer can be directly coated with UV paint or primer, then color printed, and finally coated with UV paint.

[0006] Board layer (single-layer boards have the following requirements): The sports wood flooring is 22mm thick. 15mm thick wood flooring for both residential and commercial use; Using wood or bamboo with an air-dry density ≥0.6g / cm³, a compressive strength parallel to the grain of 750MPa, and a James hardness greater than 1200lbf, this material can be directly processed into solid wood panels or finger-jointed solid wood boards. This technical solution is not applicable to three-layer or multi-layer boards on the market because it is impossible to cut and leave gaps.

[0007] 3. Wood grain laying direction of wood flooring: The longitudinal direction of the wood grain of the wood flooring is the front-to-back direction, and the steel-plastic joists are made horizontally and perpendicular to the wood grain direction.

[0008] 4. All wood must undergo drying, insect prevention treatment, and degreasing treatment if necessary.

[0009] 5. Steel joists: The dimensions and spacing of the steel joists can be adjusted appropriately depending on the site, requirements, and the material of the wood flooring. Below are example dimensions (spring steel joists are used for high-requirement locations): ① The sports wood flooring uses steel joists and galvanized rectangular welded pipes. Dimensions: 25mm wide × 25mm high × 1.5mm thick steel keel with 15mm thick rubber pad for sports wood flooring attached to the bottom. All galvanized keel connections are made by welding; ② Steel joists for household and commercial wood flooring, using galvanized rectangular welded pipes with dimensions: 20mm width × 15mm height × 1.0mm wall thickness. Steel keel bottom plate, household and commercial rubber pad, 3mm thick.

[0010] 6. The PVC-M plastic keel and oval nylon connectors are integrated: (see Figure 7) The oval connectors are embedded in the plastic PVC-M keel according to the design dimensions to form an integrated technical solution. This solution has no rubber pad layer. The keel is connected to the ground by adhesive, and the keel is connected to the wood floor by bolt fastening.

[0011] The plastic PVC-M keel is 470mm long, 20mm wide, and 15mm high, with oval connectors spaced 80mm apart.

[0012] 7. Oval nylon connector, made of nylon, connected by bolts, 6mm in diameter; ① Dimensions of oval connectors for sports wood flooring: Major axis 30mm × minor axis 10mm × height 19mm (see) Figure 2 ) ② Dimensions of oval connectors for household and commercial wood flooring: Major axis 30mm × minor axis 10mm × height 12mm (see) Figure 1 ) ③ Design principles and technical features of elliptical connectors: a. Oval shape, consistent grain, bolts do not rotate when tightened, and the consistent grain ensures the boards do not loosen. Utilizing four-sided expansion locking technology, it effectively controls the deformation of the wood flooring on all four sides of the oval shape. The oval design increases the width, maximizing the control over the wood flooring's deformation space.

[0013] b. The oval-shaped fastener consists of two layers: the upper layer, which is completely smooth and serves as a stabilizing layer, effectively improving the stability of the component; and the lower layer, which has a threaded pattern, effectively locks the wood flooring in place after tightening.

[0014] c. For elliptical fasteners, an expansion scheme with four-sided segmentation is used starting from the bottom, which can simultaneously lock all four sides of the ellipse. To ensure expansion under stress along the long axis of the elliptical fastener, it is finely segmented to ensure flexible expansion.

[0015] d. The top and bottom surfaces of the elliptical fasteners have a 0.5mm slope from the center line of the short axis to both sides to ensure the horizontal state of the fitting under stress.

[0016] 8. For oval fasteners and lateral positioning, see... Figure 10 .

[0017] ① The long axis of the elliptical fastener is 30mm. The direction of the long axis is perpendicular to the wood grain direction of the board and is set in a straight point-like interval. Starting from the center point of the elliptical fastener, the interval is 80mm to the center point of the next ellipse.

[0018] ② The spacing between adjacent joists is 200mm. The center point of the elliptical fastener is offset by 40mm from the center point of the adjacent elliptical fastener. This setting uses the installation holes of the elliptical fastener to cut the longitudinal diameter of the wood, leaving space for the longitudinal expansion of the wood. Although it is not completely cut off, it has cut off 75% of the spacing dimension of the elliptical fastener. Most of it is cut off, which can play a role in stabilizing the deformation of the wood floor.

[0019] 9. Vertical cutting, see Figure 10 .

[0020] The radial expansion of the wood needs to be addressed by vertical cutting between the keels, allowing room for the wood to expand and contract.

[0021] The rules for vertical cutting are: the kerf width is 1mm and the depth is 3mm from the floor surface.

[0022] a. Cut 200mm length, with a 50mm offset between the keels; b. The spacing between cut seams in ordinary wood flooring is ≤150mm; c. Sports wood flooring and geothermal wood flooring ≤100mm.

[0023] 10. Tool protection: Same thread milling cutter.

[0024] ① Sports wood flooring, with thread milling cutter of the same texture; ② Thread milling cutter with the same grain for household and commercial wood flooring.

[0025] Technical solution integrating single-layer plates with steel keel and curved fasteners 1. The wooden floor structure in this technical solution consists of two layers: a. Board layer, b. Keel layer.

[0026] Drill arc-shaped mounting holes on the back of the board layer as required by the design (see Figure 11). Connection method between the sheet material layer and the keel layer: bolt fastening connection; The surface of the board layer can be directly coated with UV paint or primer, then color printed, and finally coated with UV paint.

[0027] 2. Board layer (single-layer boards have the following requirements): Sports wood flooring thickness 22mm.

[0028] 15mm thick wood flooring for both residential and commercial use; Using wood or bamboo with an air-dry density ≥0.6g / cm³, a compressive strength parallel to the grain of 750MPa, and a James hardness greater than 1200lbf, this material can be directly processed into solid wood panels or finger-jointed solid wood boards. This technical solution is not applicable to three-layer or multi-layer boards on the market because it is impossible to cut and leave gaps.

[0029] 3. Wood grain laying direction of wood flooring: The longitudinal direction of the wood grain of the wood flooring is the front-to-back direction, and the steel-plastic joists are made horizontally and perpendicular to the wood grain direction.

[0030] 4. All wood must undergo drying, insect prevention treatment, and degreasing treatment if necessary.

[0031] 5. Steel keel: The dimensions and spacing of the steel keel can be adjusted appropriately depending on the site, requirements, and the material of the wood flooring. The following are example dimensions (spring steel keel is used for places with high requirements).

[0032] ① The sports wood flooring uses steel joists and galvanized rectangular welded pipes.

[0033] Dimensions: 25mm wide × 25mm high × 1.5mm thick. The bottom of the steel keel is glued with a 15mm thick rubber pad for sports wood flooring. All galvanized keel connections are made by welding. ② Steel joists for household and commercial wood flooring, using galvanized rectangular welded pipes with dimensions of 20mm width × 15mm height × 1.0mm wall thickness. The bottom of the steel joists is covered with household and commercial rubber pads with a thickness of 3mm.

[0034] 6. Plastic arc-shaped connector, material: nylon.

[0035] Connection method: Bolt fastening connection, bolt diameter 3.5mm.

[0036] ① Dimensions of curved connectors for sports wood flooring.

[0037] Length 100mm × arc height 19mm × width 9mm, end height 12mm (Figure 4). ② Dimensions of curved connectors for household and commercial wood flooring.

[0038] Length 100mm × Arc height 12mm × Width 9mm, End height 5mm (Figure 3); ③ Design principles and technical features of arc-shaped connectors: a. This invention involves drilling holes in a circular saw (a custom-made circular saw with irregularly shaped teeth), and then installing the arc-shaped connector by oblique insertion after drilling. b. The curved connector is designed with two locking tongues on each side to prevent errors in processing and manufacturing as well as the softness of fast-growing wood. After being fastened to the joists, the top part of the curved connector is hollowed out, which will affect the safety of the wood floor. Because the top of the curved connector is only 3mm away from the wood floor, once it is hollowed out, it will collapse under the force. c. Since the curved connector is designed to be 100mm long, the end design height should not be less than 5mm to ensure the rigidity of the fitting. The curvature of the curved connector should be as flat as possible to ensure efficient and larger cutting of the timber diameter; d. The arc-shaped connector cleverly utilizes an arc-shaped design to both cut the longitudinal grain of the wood and leave installation holes for the arc-shaped connector, while also allowing for expansion and contraction space in the longitudinal direction of the wood grain, achieving multiple benefits in one go.

[0039] 7. For the arc-shaped connectors and horizontal arrangement, see... Figure 11 .

[0040] ① The length of the arc-shaped connector is 100mm. Straight lines and segmented intervals are set at 120mm intervals.

[0041] ② The spacing between adjacent keel members should be 200mm. The curved connectors should be of the same size and staggered with adjacent curved connectors, and the timber diameter should be cut to allow space for the longitudinal expansion of the timber.

[0042] ③ The length of the arc-shaped connector should be perpendicular to the longitudinal grain of the wood.

[0043] 8. Vertical cut, see Figure 10.

[0044] The radial expansion of the wood needs to be addressed by vertical cutting between the keels, allowing room for the wood to expand and contract.

[0045] Vertical cutting rules: 1mm wide kerf, 3mm deep from the floor surface; a. Cut 200mm length, with a 50mm offset between the keels; b. The spacing between cut seams in ordinary wood flooring is ≤150mm; c. Sports wood flooring and geothermal wood flooring ≤100mm.

[0046] 9. Tool protection: ① Sports wood flooring, round irregular toothed cutting blade; ② Round, irregularly shaped toothed cutting blades for household and commercial wood flooring.

[0047] A technical solution integrating double-layer plates with steel-plastic keel and elliptical fasteners.

[0048] 1. The engineered wood flooring of this invention consists of three layers: ① Sports wood flooring, total thickness: 62mm, see Figure 8 .

[0049] a. Top layer (decorative layer), 3mm thick; b. Lower layer (pressure-bearing layer), 19mm thick; c. Keel layer (steel keel), 40mm thick, including 15mm rubber pad.

[0050] ② Residential and commercial wood flooring. Total thickness 33mm, see details. Figure 9 .

[0051] a. Top layer (decorative layer), 3mm thick; b. Lower layer (pressure-bearing layer), 12mm thick; c. Keel layer (steel keel), height 18 (of which the rubber pad wall thickness is 3mm).

[0052] ③ Household and commercial wood flooring, total thickness 30 mm, see Figure 10.

[0053] a. Top layer (decorative layer), 3mm thick; b. Lower layer (pressure-bearing layer), 12mm thick; c. Keel layer (integrated PVC-M keel and nylon oval fasteners, 15mm thick, without rubber pad layer).

[0054] 2. Requirements for the upper layer of the board: The board shall be made of wood or bamboo with an air-dry density ≥0.69g / cm³, a compressive strength along the grain ≥50MPa, and a Mohs hardness ≥1200lbf.

[0055] 3. Requirements for the underlayer of the board: preferably made of wood or bamboo, with an air-dry density ≥0.4g / cm³ and a compressive strength along the grain ≥45MPa.

[0056] 4. Wood grain laying direction: The longitudinal direction of the wood grain of the upper layer board is left and right, and the longitudinal direction of the wood grain of the lower layer board is front and back, perpendicular to the wood grain direction of the upper layer board. The length direction of the keel is perpendicular to the wood grain direction of the lower layer board (pressure layer).

[0057] 5. Connection method between upper and lower layers: There are two methods for manufacturing the lower layer by gluing it together.

[0058] a. The lower layer consists of small boards 70-110mm wide and 15mm-20mm thick. They are glued to the upper layer in sequence, with a 1mm gap between the small boards. After completion, holes are drilled on the back of the wood flooring to install connectors and connect it to the steel-plastic joists. This solution does not require vertical cutting between the joists. b. The lower layer is made of finger-jointed board or solid wood straight splice board, which is directly glued to the upper layer. After completion, holes are drilled on the back of the wood floor and connectors are installed to connect it to the steel-plastic joists. This solution requires vertical cutting between the joists.

[0059] 6. All wood must be dried, dewormed, and degreased.

[0060] 7. The upper panel can be directly coated with UV paint, or coated with primer, printed with color patterns, and then coated with UV paint.

[0061] 8. Steel keel: The dimensions and spacing of the steel keel can be adjusted appropriately depending on the site, requirements, and the material of the wood flooring. The following are sample dimensions (spring steel keel is used for places with high requirements).

[0062] ① The sports wood flooring uses steel joists and galvanized rectangular welded pipes.

[0063] Dimensions: 25mm wide × 25mm high × 1.5mm thick steel keel with a 15mm thick rubber pad for sports wood flooring glued to the bottom. All galvanized keel connections are made by welding; ② Steel joists for household and commercial wood flooring, using galvanized rectangular welded pipes with dimensions: 20mm width × 15mm height × 1.0mm wall thickness. Steel keel bottom plate, household and commercial rubber pad, 3mm thick.

[0064] 9. The PVC-M plastic keel is integrated with the oval nylon connector (see Figure 7).

[0065] The oval connectors are embedded in the plastic PVC-M keel according to the design dimensions to form an integrated technical solution. This solution has no rubber pad layer. The keel is connected to the ground by adhesive, and the keel is connected to the wood floor by bolt fastening.

[0066] The plastic PVC-M keel is 470mm long, 20mm wide, and 15mm high, with oval connectors spaced 80mm apart.

[0067] 10. The oval nylon connector is made of nylon and is connected by bolts. The diameter is 6mm.

[0068] ① Dimensions of oval connectors for sports wood flooring: Major axis 30mm × minor axis 10mm × height 19mm, see Figure 2; ② Dimensions of oval connectors for household and commercial wood flooring: Major axis 30mm × minor axis 10mm × height 12mm, see Figure 1; ③ Design principles and technical features of elliptical connectors: a. Oval shape, consistent grain, bolts do not rotate when tightened, and the consistent grain ensures the boards do not loosen. Utilizing four-sided expansion locking technology, it effectively controls the deformation of the wood flooring on all four sides of the oval shape. The oval design increases the width, maximizing the control over the wood flooring's deformation space.

[0069] b. The oval-shaped fastener consists of two layers: the upper layer, which is completely smooth and serves as a stabilizing layer, effectively improving the stability of the component; and the lower layer, which has a threaded pattern, effectively locks the wood flooring in place after tightening.

[0070] c. For elliptical fasteners, an expansion scheme with four-sided segmentation is used starting from the bottom, which can simultaneously lock all four sides of the ellipse. To ensure expansion under stress along the long axis of the elliptical fastener, it is finely segmented to ensure flexible expansion.

[0071] d. The top and bottom surfaces of the elliptical fasteners have a 0.5mm slope from the center line of the short axis to both sides to ensure the horizontal state of the fitting under stress.

[0072] 11. Oval fasteners and horizontal arrangement, see Figure 10.

[0073] ① The long axis of the elliptical fastener is 30mm. The direction of the long axis is perpendicular to the wood grain direction of the board and is set in a straight point-like interval. Starting from the center point of the elliptical fastener, the interval is 80mm to the center point of the next ellipse.

[0074] ② The spacing between adjacent joists is 200mm. The center point of the elliptical fastener is offset by 40mm from the center point of the adjacent elliptical fastener. This setting uses the installation holes of the elliptical fastener to cut the longitudinal diameter of the wood, leaving space for the longitudinal expansion of the wood. Although it is not completely cut off, it has cut off 75% of the spacing dimension of the elliptical fastener. Most of it is cut off, which can play a role in stabilizing the deformation of the wood floor.

[0075] 12. Vertical cut, see Figure 10.

[0076] The radial expansion of the wood needs to be addressed by vertical cutting between the keels, allowing room for the wood to expand and contract.

[0077] The rules for vertical cutting are: the kerf width is 1mm and the depth is 3mm from the floor surface.

[0078] a. Cut 200mm length, with a 50mm offset between the keels; b. The spacing between cut seams in ordinary wood flooring is ≤150mm; c. Sports wood flooring and geothermal wood flooring ≤100mm.

[0079] 13. Tool protection: Same thread milling cutter.

[0080] ① Sports wood flooring, with thread milling cutter of the same texture; ② Thread milling cutter with the same grain for household and commercial wood flooring.

[0081] A technical solution integrating double-layer plates with steel keel and arc-shaped fasteners.

[0082] 1. The integrated wood flooring structure of this invention consists of three layers: ① Sports wood flooring, total thickness: 62mm, see Figure 8.

[0083] a. Top layer (decorative layer), 3mm thick; b. Lower layer (pressure-bearing layer), 19mm thick; c. Keel layer (steel keel), 40mm thick, including 15mm rubber pad.

[0084] ② Household and commercial wood flooring, total thickness 33mm, see Figure 9.

[0085] a. Top layer (decorative layer), 3mm thick; b. Lower layer (pressure-bearing layer), 12mm thick; c. Keel layer (steel keel), height 18 (of which the rubber pad wall thickness is 3mm).

[0086] The upper layer of the board must be made of wood or bamboo with an air-dry density ≥0.69g / cm³, a compressive strength along the grain ≥50MPa, and a Mohs hardness ≥1200lbf.

[0087] The requirements for the underlayer of the board are as follows: wood or bamboo are preferred, with an air-dry density ≥0.4g / cm³ and a compressive strength along the grain ≥45MPa.

[0088] 4. Wood grain laying direction: The longitudinal direction of the wood grain of the upper layer board is left and right, and the longitudinal direction of the wood grain of the lower layer board is front and back, perpendicular to the wood grain direction of the upper layer board. The length direction of the keel is perpendicular to the wood grain direction of the lower layer board (pressure layer).

[0089] 5. Connection method between upper and lower layers: There are two methods for manufacturing the lower layer by gluing it together.

[0090] a. The lower layer consists of small boards 70-110mm wide and 15mm-20mm thick. They are glued to the upper layer in sequence, with a 1mm gap between the small boards. After completion, holes are drilled on the back of the wood flooring to install connectors and connect it to the steel-plastic joists. This solution does not require vertical cutting between the joists. b. The lower layer is made of finger-jointed board or solid wood straight splice board, which is directly glued to the upper layer. After completion, holes are drilled on the back of the wood floor and connectors are installed to connect it to the steel-plastic joists. This solution requires vertical cutting between the joists.

[0091] 6. All wood must be dried, dewormed, and degreased.

[0092] 7. The upper panel can be directly coated with UV paint, or coated with primer, printed with color patterns, and then coated with UV paint.

[0093] 8. Steel keel: The dimensions and spacing of the steel keel can be adjusted appropriately depending on the site, requirements, and the material of the wood flooring. The following are sample dimensions (spring steel keel is used for places with high requirements).

[0094] ① The sports wood flooring uses steel joists and galvanized rectangular welded pipes: Dimensions: 25mm wide × 25mm high × 1.5mm thick steel keel with a 15mm thick rubber pad for sports wood flooring glued to the bottom. All galvanized keel connections are made by welding; ② Steel joists for household and commercial wood flooring, using galvanized rectangular welded pipes with dimensions: 20mm width × 15mm height × 1.0mm wall thickness. Steel keel bottom plate, household and commercial rubber pad, 3mm thick.

[0095] 9. Plastic arc-shaped connector, material: nylon.

[0096] Connection method: Bolt fastening connection, bolt diameter 3.5mm.

[0097] ① Dimensions of the curved connector for sports wood flooring: length 100mm × arc height 19mm × width 9mm, end height 12mm (Figure 4). ② Dimensions of curved connectors for household and commercial wood flooring: length 100mm × arc height 12mm × width 9mm, end height 5mm (Figure 3). ③ Design principles and technical features of arc-shaped connectors.

[0098] a. This invention involves making holes in a circular saw (a custom-made circular saw with irregularly shaped teeth), and then installing the arc-shaped fastener by oblique insertion after making the hole; b. The curved connector is designed with two locking tongues on each side to prevent errors in processing and manufacturing as well as the looseness of the wood entering and exiting. After being fastened to the joists, the top part of the curved connector is hollowed out, which will affect the safety of the wooden floor. Because the top of the curved connector is only 3mm away from the wooden floor, once it is hollowed out, it will collapse under the force. c. Since the curved connector is designed to be 100mm long, the end design height should not be less than 5mm to ensure the rigidity of the fitting. The curvature of the curved connector should be as flat as possible to ensure efficient and larger cutting of the timber diameter; d. The arc-shaped connector cleverly utilizes the arc-shaped design to cut the longitudinal grain of the wood, leave a hole for the arc-shaped connector, and allow for expansion and contraction space in the longitudinal direction of the wood grain, achieving multiple benefits in one go.

[0099] 10. The arc-shaped connector and the horizontal arrangement are shown in Figure 11.

[0100] ① The length of the arc-shaped connector is 100mm. Straight lines and segmented intervals are set at 120mm intervals.

[0101] ② The spacing between adjacent keel members should be 200mm. The curved connectors should be of the same size and staggered with adjacent curved connectors, and the timber diameter should be cut to allow space for the longitudinal expansion of the timber.

[0102] ③ The length of the arc-shaped connector should be perpendicular to the longitudinal grain of the wood.

[0103] 11. Vertical cut, see Figure 10.

[0104] The radial expansion of the wood needs to be addressed by vertical cutting between the keels, allowing room for the wood to expand and contract.

[0105] The rules for vertical cutting are: the kerf width is 1mm and the depth is 3mm from the floor surface.

[0106] a. Cut 200mm length, with a 50mm offset between the keels; b. The spacing between cut seams in ordinary wood flooring is ≤150mm; c. Sports wood flooring and geothermal wood flooring ≤100mm.

[0107] 12. Design protection for circular irregular toothed cutting discs.

[0108] Technical solution for integrating extra-long and extra-wide wood flooring with tongue-and-groove joists: 1. The technical solution for integrating tongue and groove teeth with the keel and locking function uses glass fiber reinforced nylon 66 as the material and is manufactured by injection molding.

[0109] ① Tongue and groove joists for sports wood flooring, see Figure 5, 50mm wide, 43mm high, and 1000mm long; ② Tongue and groove joists for household and commercial wood flooring, see Figure 6, 40mm wide, 26mm high, and 1000mm long.

[0110] 2. This invention integrates a single design for the tongue and groove joint of wood flooring, joists, and locking mechanism: The tongue and groove design provides space for the wood flooring to spring back during the downward installation and also allows for expansion and contraction. This ensures that the expansion and contraction of the wood flooring will not cause any abnormal noise from the tongue and groove, and can simultaneously lock the wood flooring on both sides of the joists. The long locking design ensures the locking force of the wood flooring and prevents the gaps between the wood flooring from widening.

[0111] 3. The tongue and groove joints of the wooden flooring of this invention are the same on all four sides, regardless of front, back, left, or right, and can lock all four sides at the same time.

[0112] 4. This invention adopts a split design and downward installation, which is convenient to install, can install extra-large boards, and can lock the wood flooring on all four sides at the same time.

[0113] 5. This invention makes it very convenient and quick to disassemble and assemble wood flooring, and to partially replace wood flooring, facilitating maintenance and partial replacement.

[0114] 6. The wood flooring and joists of this invention are all installed using a floating method, except that the plastic PVC-M joists and the nylon oval fasteners are integrated into the joists and are glued to the ground.

[0115] 7. In summary: The longitudinal and radial directions of the wood grain in the wood flooring are both cut off, leaving room for expansion and contraction. Combined with oval and curved connectors, the steel-plastic joists are effectively and firmly connected to the wood flooring, curbing and restraining the expansion of the wood flooring. The tongue-and-groove tongue and groove joists allow for quick and convenient installation, simultaneously locking all four sides of the wood flooring.

[0116] The width and length of the wood flooring can be manufactured to a great extent. However, due to limitations in current market equipment and installation environment, the width of the wood flooring in this invention is customized to 1 meter, while the length can be customized arbitrarily.

[0117] This provides ample creative space for color printing patterns on wood flooring. Any pattern can be printed on large wood flooring using a color printer, and then UV varnish can be applied, enriching the decorative content of the wood flooring, expanding the decorative effect, and enhancing the usability of the wood flooring.

[0118] 8. Because wood flooring can be made wide and long, the number of seams between the wood floorboards is reduced, making it more aesthetically pleasing and easier to maintain.

[0119] 9. The integrated wood flooring of this invention has extremely high requirements for the flatness of the ground. Cement self-leveling is necessary to ensure that the ground is flat, clean and dry.

[0120] 10. The seams of the wood flooring are finished with a slight bevel.

[0121] 11. Tool protection for tongue and groove joints in wooden flooring. Attached Figure Description

[0122] Figure 1 This is a schematic diagram of the elliptical nylon connector (for household and commercial use) in this invention.

[0123] ① The material is nylon, and the processing method is injection molding; ② Dimensions: Major axis 30mm, minor axis 10mm, height 12mm; ③ Thread width 1.5mm, thread depth 1.5mm; ④ The diameter of the intermediate bolt hole is 5mm.

[0124] Figure 2 This is a schematic diagram of the elliptical nylon connector (for sports wood flooring) in this invention.

[0125] ① The material is nylon, and the processing method is injection molding; ② Dimensions: Major axis 30mm, minor axis 10mm, height 19mm; ③ The thread width is 1.5mm and the thread depth is 1.5mm; ④ The diameter of the intermediate bolt hole is 5mm.

[0126] Figure 3 This is a schematic diagram of the plastic arc-shaped connector (household and commercial) in this invention.

[0127] ① The material is nylon, and the processing method is injection molding; ② Dimensions: major axis 100mm, arc height 12mm, width 9mm, end height 5mm; ③ The diameter of the two bolt holes is 3.5mm.

[0128] Figure 4 This is a schematic diagram of the plastic arc-shaped connector (for sports wood flooring) in this invention.

[0129] ① The material is nylon, and the processing method is injection molding; ② Dimensions: major axis 100mm, arc height 19mm, width 9mm, end height 12mm; ③ The diameter of the two bolt holes is 3.5mm.

[0130] Figure 5 This is a schematic diagram of the technical solution (for home and commercial use) of the present invention, which integrates tongue and groove teeth with the keel and has a locking function.

[0131] ① The material is nylon, and the processing method is injection molding; ②Dimensions: Width 40mm, Height 26mm, Length 142mm; ③ Installation method with wood flooring: After parallel installation, press down for installation.

[0132] Figure 6 This is a schematic diagram of the technical solution of the present invention, which integrates tongue and groove teeth with the keel and has a locking function (for sports wood flooring).

[0133] ① The material is nylon, and the processing method is injection molding; ②Dimensions: Width 50mm, Height 43mm, Length 142mm; ③ Installation method with wood flooring: After parallel installation, press down for installation.

[0134] Figure 7 This is a schematic diagram of the integrated technology of PVC-M plastic keel and oval nylon connector in this invention.

[0135] ① Dimensions: Length 470mm, Width 20mm, Height 27mm; ② The elliptical spacing is 80mm; ③The materials include a keel width of 20mm and a height of 15mm; The material is PVC-M, and the oval nylon connector has a major axis of 30mm, a minor axis of 10mm, a height of 27mm, and is made of nylon.

[0136] Figure 8This is a schematic diagram of the integration of wood flooring, steel joists, and shock-absorbing rubber pads in this invention (for sports wood flooring).

[0137] ① Sports wood flooring, 22mm thick; ② Steel keel, square, 25mm in diameter, 1.5mm thick; ③ Rubber pads for sports wood flooring, 15mm thick; ④ The total thickness of the sports wood flooring of this invention is 62mm; ⑤ The width of the sports wood flooring of this invention is designed to be 1000mm, and the length is customizable.

[0138] Figure 9 This is a schematic diagram (for both residential and commercial use) of the integration of wood flooring, steel joists, and shock-absorbing rubber pads in this invention.

[0139] ①The thickness of household and commercial wood flooring is 15mm; ② Steel keel, 20mm wide and 15mm high; ③ Household and commercial shock-absorbing pads, 3mm thick; ④ The total thickness of the wood flooring for both residential and commercial use in this invention is 33mm; ⑤ The width of the household and commercial wood flooring examples of this invention is 1000mm, and the length can be customized.

[0140] Figure 10 This invention provides an integrated technical solution for PVC-M plastic keel and oval nylon connectors, along with schematic diagrams of wood flooring installation and vertical cutting of the wood flooring.

[0141] ①Integrated solution of PVC-M plastic keel and oval nylon connector, length 470mm, width 20mm, height 27mm; ② Vertical cutting of wood flooring should be carried out according to this principle; ③ The manufacturing method of the wood flooring, oval nylon connectors, and steel joists is the same as this scheme. The only difference is that there is no joint in the middle of the steel joists. The length of the steel joists is the same as the length of the wood flooring.

[0142] Figure 11 This is a schematic diagram of the installation of the wooden floor, steel joists, and arc-shaped connectors in this invention, as well as a schematic diagram of the vertical cutting of the wooden floor.

[0143] ① Setting of arc-shaped connectors, straight lines, spacing, and segmentation; ② Adjacent keels: should be of the same size but staggered.

Claims

1. A technical solution integrating a single-layer plate with a steel-plastic keel and elliptical connectors. (1) This wooden floor structure is divided into two layers. a. Board layer b. Keel layer (2) Steel keel: The dimensions and spacing of the steel keel can be adjusted according to different requirements and the type of wood flooring material. Spring steel keel components can also be used. The connection method between the board layer and the steel-plastic keel layer in this solution is bolt fastening. (3) Technical solution for embedding elliptical connectors into plastic PVC-M keel ① This solution does not have a rubber pad layer. ② The keel in this scheme is connected to the ground by adhesive. ③ The connection method between the joists and the wood flooring in this scheme is: bolt fastening connection. ④ Design scheme for embedding nylon oval connectors into plastic PVC-M keel Manufacturing method: Injection molding ⑤ The installation joint of the oval connector embedded in the plastic PVC-M keel is set at the center position of the adjacent keel. (4) Oval-shaped plastic connector, made of nylon. ① Oval design with consistent grain: The bolts are tightened without rotating, and the consistent grain design ensures that the wood does not loosen after tightening, thus controlling wood deformation. The oval design increases the width of the surface and can control the deformation space of the wood flooring to the maximum extent. ② The oval connector is divided into two layers: the upper layer is smooth and has a height of no less than one-third of the total length of the accessory, which can effectively improve the stability of the accessory; the lower layer is a threaded layer with the same texture, which can effectively lock the wood after tightening. ③ The elliptical connector adopts a four-sided expansion scheme starting from the bottom, and after tightening, it can lock all four sides of the ellipse at the same time; In the direction of the major axis of the elliptical connector, to ensure expansion under stress. Fine segmentation is performed along the long axis to ensure flexible expansion; ④ The top and bottom surfaces of the elliptical connector, starting from the center line of the short axis and extending to both sides, are designed with a slope of 0.5mm to ensure that the parts are horizontal after being tightened. (5) Elliptical connector and horizontal setting ① The major axis of the elliptical connector should be 30mm and should be perpendicular to the wood grain direction of the board it is connected to; ② For elliptical connectors, straight lines, dots, and intervals should be used at the corresponding keel positions; ③ For adjacent keels, the center point of the elliptical connector is the center point of the distance between the two elliptical connectors of the adjacent keels. In other words, the elliptical connectors of adjacent keels need to be centered and staggered. (6) Vertical cutting The radial expansion of the wood needs to be addressed by vertical cutting between the keels, leaving room for the wood to expand and contract. The principle of vertical cutting: the kerf width is 1mm and the depth is 3mm from the floor surface. a. 50mm misalignment between keels, cutting length 200mm b. Standard wood flooring cut joint spacing ≤ 150mm C. Sports wood flooring and geothermal wood flooring ≤100mm (7) Tool protection for thread milling cutters with the same groove pattern ① Thread milling cutter for sports wood flooring with the same grain pattern ② Thread milling cutter for household and commercial wood flooring with the same grain pattern.

2. A technical solution integrating a single-layer plate with a steel keel and arc-shaped connectors. (1) The wooden floor structure in this scheme is divided into two layers. a. Board layer b. Keel layer (2) Steel keel: The dimensions and spacing of the steel keel can be adjusted according to different requirements and the type of wood flooring material. Spring steel keel components can also be used. The connection method between the board layer and the steel-plastic keel layer in this solution is bolt fastening. (3) Arc-shaped connector, made of nylon ① Connection method: Bolt fastening connection, bolt diameter 3.5mm ②This invention provides a method for custom-made irregular-shaped toothed circular saws for creating holes. ③ Installation method of arc-shaped connectors: oblique insertion installation ④ The curved connector has two locking tongues on each side to ensure that the curved top is not hollowed out due to processing errors or soft material, thus ensuring the safety of the wood flooring. ⑤ The length of the curved connector should be 100mm, and the end design height should not be less than 5mm to ensure the rigidity of the accessory. The curvature of the curved part should be designed to be as flat as possible to ensure effectiveness and allow for more cutting of the wood diameter. ⑥ The arc-shaped connector cleverly utilizes the arc-shaped design to cut the longitudinal diameter of the wood, leave installation holes for the arc-shaped connector, and leave room for expansion and contraction in the longitudinal direction of the wood grain, achieving multiple benefits in one go. (4) Vertical cutting The radial expansion of the wood needs to be addressed by vertical cutting between the keels, leaving room for the wood to expand and contract. The principle of vertical cutting: the kerf width is 1mm and the depth is 3mm from the floor surface. a. 50mm misalignment between keels, cutting length 200mm b. Standard wood flooring cut joint spacing ≤ 150mm C. Sports wood flooring and geothermal wood flooring ≤100mm (5) Curved fasteners and lateral positioning; ① The arc-shaped connector is 100mm long and should be set perpendicular to the wood grain direction of the board it is connected to; ② The arc-shaped connectors should be installed in straight lines, segments, and intervals at their corresponding keel positions; ③ The center point of the arc-shaped connector of the adjacent keel is the center point of the distance between the two arc-shaped connectors of the adjacent keel, that is, the arc-shaped connectors of the adjacent keel need to be set in a staggered position in the center; (6) Tool protection Custom-made round, irregularly shaped toothed cutting blades.

3. A technical solution integrating double-layer plates with steel keel and elliptical connectors. (1) The integrated wood flooring structure of this invention consists of three layers and is divided into two types: one is a steel keel and the other is an oval connector embedded in a plastic PVC-M keel. Steel keel a. Top layer (decorative layer) b. Lower layer (pressure-bearing layer) c. Steel keel Oval connector embedded in plastic PVC-M keel solution a. Top layer (decorative layer) b. Lower layer (pressure-bearing layer) c. Elliptical connector embedded in PVC-M keel solution Steel keel: The dimensions and spacing of the steel keel can be adjusted according to different requirements and the type of wood flooring material. Spring steel keel components can also be used. The connection method between the board layer and the steel-plastic keel layer in this solution is bolt fastening. (2) Wood grain laying direction: The longitudinal direction of the wood grain of the upper layer board is left and right, and the longitudinal direction of the wood grain of the lower layer board is front and back, perpendicular to the wood grain direction of the upper layer board. The length direction of the keel is perpendicular to the wood grain direction of the lower layer board (pressure layer). (3) Connection method between the upper and lower layers: adhesive bonding There are two methods for manufacturing the lower layer board. a. The lower layer consists of small boards 70-110mm wide and 15mm-20mm thick, which are glued to the upper layer in sequence. The gap between the small boards is 1mm. After completion, holes are drilled on the back of the wood flooring to install connectors, which are then connected to the steel-plastic joists. This solution does not require vertical cutting between the joists. b. The lower layer is made of finger-jointed board or solid wood straight splicing board, which is directly glued to the upper layer. After completion, holes are drilled on the back of the wood floor and connectors are installed to connect it to the steel-plastic joists. This solution requires vertical cutting between the joists. (4) Technical solution for embedding oval connectors into plastic PVC-M keel ① This solution does not have a rubber pad layer. ② The keel in this scheme is connected to the ground by adhesive. ③ The connection method between the joists and the wood flooring in this scheme is: bolt fastening connection. ④ Design scheme for embedding nylon oval connectors into plastic PVC-M keel Manufacturing method: Injection molding ⑤ The installation joint of the oval connector embedded in the plastic PVC-M keel is set at the center position of the adjacent keel. (5) Oval-shaped plastic connector, made of nylon. ① Oval design with consistent grain: The bolts are tightened without rotating, and the consistent grain design ensures that the wood does not loosen after tightening, thus controlling wood deformation. The oval design increases the width of the surface and can control the deformation space of the wood flooring to the maximum extent. ② The oval connector is divided into two layers: the upper layer is smooth and has a height of no less than one-third of the total length of the accessory, which can effectively improve the stability of the accessory; the lower layer is a threaded layer with the same texture, which can effectively lock the wood after tightening. ③ The elliptical connector adopts a four-sided expansion scheme starting from the bottom, and after tightening, it can lock all four sides of the ellipse at the same time; In the direction of the major axis of the elliptical connector, to ensure expansion under stress. Fine segmentation is performed along the long axis to ensure flexible expansion; ④ The top and bottom surfaces of the elliptical connector, starting from the center line of the short axis and extending to both sides, are designed with a slope of 0.5mm to ensure that the parts are horizontal after being tightened. (6) Elliptical connector and horizontal setting ① The major axis of the elliptical connector should be 30mm and should be perpendicular to the wood grain direction of the board it is connected to; ② For elliptical connectors, straight lines, dots, and intervals should be used at the corresponding keel positions; ③ For adjacent keels, the center point of the elliptical connector is the center point of the distance between the two elliptical connectors of the adjacent keels. In other words, the elliptical connectors of adjacent keels need to be centered and staggered. (7) Vertical cutting The radial expansion of the wood needs to be addressed by vertical cutting between the keels, leaving room for the wood to expand and contract. The principle of vertical cutting: the kerf width is 1mm and the depth is 3mm from the floor surface. a. 50mm misalignment between keels, cutting length 200mm b. Standard wood flooring cut joint spacing ≤ 150mm C. Sports wood flooring and geothermal wood flooring ≤100mm (8) Tool protection for thread milling cutters with the same groove pattern ① Thread milling cutter for sports wood flooring with the same grain pattern ② Thread milling cutter for household and commercial wood flooring with the same grain pattern.

4. A technical solution integrating double-layer plates with steel keel and arc-shaped connectors. (1) The wood flooring of this invention consists of three layers. a. Top layer (decorative layer) b. Lower layer (pressure-bearing layer) c. Steel keel Steel keel: The dimensions and spacing of the steel keel can be adjusted according to different requirements and the type of wood flooring material. Spring steel keel components can also be used. The connection method between the board layer and the steel-plastic keel layer in this solution is bolt fastening. (2) Wood grain laying direction: The longitudinal direction of the wood grain of the upper layer board is left and right, and the longitudinal direction of the wood grain of the lower layer board is front and back, perpendicular to the wood grain direction of the upper layer board. The length direction of the keel is perpendicular to the wood grain direction of the lower layer board (pressure layer). (3) Connection method between the upper and lower layers: adhesive bonding There are two methods for manufacturing the lower layer board. a. The lower layer consists of small boards 70-110mm wide and 15mm-20mm thick, which are glued to the upper layer in sequence. The gap between the small boards is 1mm. After completion, holes are drilled on the back of the wood flooring to install connectors, which are then connected to the steel-plastic joists. This solution does not require vertical cutting between the joists. b. The lower layer is made of finger-jointed board or solid wood straight splicing board, which is directly glued to the upper layer. After completion, holes are drilled on the back of the wood floor and connectors are installed to connect it to the steel-plastic joists. This solution requires vertical cutting between the joists. (4) Arc-shaped connector, made of nylon ① Connection method: Bolt fastening connection, bolt diameter 3.5mm ②This invention provides a method for custom-made irregular-shaped toothed circular saws for creating holes. ③ Installation method of arc-shaped connectors: oblique insertion installation ④ The curved connector has two locking tongues on each side to ensure that the curved top is not hollowed out due to processing errors or soft material, thus ensuring the safety of the wood flooring. ⑤ The length of the curved connector should be 100mm, and the end design height should not be less than 5mm to ensure the rigidity of the accessory. The curvature of the curved part should be designed to be as flat as possible to ensure effectiveness and allow for more cutting of the wood diameter. ⑥ The arc-shaped connector cleverly utilizes the arc-shaped design to cut the longitudinal diameter of the wood, leave installation holes for the arc-shaped connector, and leave room for expansion and contraction in the longitudinal direction of the wood grain, achieving multiple benefits in one go. (5) Vertical cutting The radial expansion of the wood needs to be addressed by vertical cutting between the keels, leaving room for the wood to expand and contract. The principle of vertical cutting: the kerf width is 1mm and the depth is 3mm from the floor surface. a. 50mm misalignment between keels, cutting length 200mm b. Standard wood flooring cut joint spacing ≤ 150mm C. Sports wood flooring and geothermal wood flooring ≤100mm (6) Curved fasteners and lateral positioning; ① The arc-shaped connector is 100mm long and should be set perpendicular to the wood grain direction of the board it is connected to; ② The arc-shaped connectors should be installed in straight lines, segments, and intervals at their corresponding keel positions; ③ The center point of the adjacent keel arc connector is the center point of the distance between the two adjacent keel arc connectors, that is, the adjacent keel arc connectors need to be centered and staggered.

5. Technical solutions for integrating extra-long and extra-wide wood flooring with tongue-and-groove joists. (1) Technical solution for integrating tongue and groove teeth with keel and locking function ① This invention integrates the tongue and groove joints of wood flooring, joists, and locking mechanisms into a single design. ② It adopts a forward and reverse tooth design and has a locking function. ③ It adopts a split design and a downward installation method; ④ The tongue and groove joints of the wood flooring made by this invention are the same on all four sides, regardless of front, back, left, or right, and can be locked on all four sides at the same time; ⑤ The technology of this invention allows for quick and convenient installation of wood flooring, and easy disassembly and assembly, enabling partial replacement of wood flooring, facilitating maintenance and replacement; (2) In summary: The longitudinal and radial directions of the wood grain of the board are cut off, leaving room for expansion and contraction; with the addition of elliptical and arc-shaped connectors, the steel keel, all-plastic keel and wood flooring can be effectively connected together. The technical solution of tongue and groove positive and negative tooth keel integration provides comprehensive technical support for the manufacturing and installation of ultra-long and ultra-wide wood flooring. The wood flooring of this invention can be up to 2 meters wide and has no length limit; it can be customized. However, the example design has a width of 1 meter, and the length can be customized arbitrarily. (This product is a customized wood flooring.) The successful manufacturing and convenient installation of extra-long and extra-wide wood flooring have provided ample space for color printing on the decorative surfaces of wood flooring. Various patterns can be printed on large boards using a color printer, followed by UV coating, enriching the decorative effects of the wood flooring, meeting personalized customization requirements, and enhancing the usability of the wood flooring. (3) Protection of wood floor tongue and groove and tools for wood floor tongue and groove.

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