Floor core structure with anti-deformation joints and three-layer composite floor
By incorporating anti-deformation grooves and intermediate connectors on the sides of the wood core board units, the problems of wood flooring deformation and low production efficiency have been solved, thereby improving the durability of the flooring and production efficiency.
Patent Information
- Application Number
- CN202422270385.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The core board of existing three-layer wood flooring is prone to deformation and cracking under environmental factors, and the traditional method of uniformly arranging and fixing wood strips has low production efficiency, which is not conducive to industrial production.
Rectangular wooden core board units are used, with anti-deformation grooves evenly opened along the sides to form a toothed structure. They are fixed by the middle connector and the side board, and combined with the locking edge design, they form an anti-deformation joint structure.
It effectively prevents wooden flooring from warping due to temperature and humidity changes, improves flooring durability and strength, increases processing efficiency, and is suitable for industrial production.
Smart Images
Figure CN223510562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of composite wood flooring, specifically to a floor core structure with anti-deformation seams and a three-layer composite floor. Background Technology
[0002] Three-layer wood flooring is a typical form of composite wood flooring, which usually consists of a core board and two face panels placed on the top and bottom of the core board to form the floor.
[0003] The core board of existing three-layer wood flooring generally comes in two forms: one is a single piece of board, which can be either an original whole board or a composite board formed by gluing; the other is a core board structure formed by several wood strips evenly arranged.
[0004] For the first type of solid board structure, due to the special nature of wood structure, deformation may occur during use due to environmental factors. For example, if underfloor heating pipes are laid on the ground, the board is very prone to deformation and cracking. For the second type of core board structure, the wood strips need to be evenly arranged and glued together, resulting in low production efficiency and is not conducive to industrial production. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a floor core structure with anti-deformation seams and a three-layer composite floor, which changes the traditional core board structure and adds anti-deformation grooves, which can reduce deformation, facilitate processing, improve production efficiency, and facilitate industrial production.
[0006] The technical objective of this utility model is achieved through the following technical solution:
[0007] A floor core structure with anti-deformation joints includes several core board units, each core board unit being a rectangular wooden structure. Several first anti-deformation grooves are evenly provided on one side of each core board unit. The first anti-deformation grooves form edge openings on one side of the core board unit and extend along the edge openings toward the opposite side of the core board, leaving a margin between the opposite side of the core board. The first anti-deformation grooves penetrate both the upper and lower surfaces of the core board unit. A toothed structure is formed between the first anti-deformation grooves, and the width of the first anti-deformation grooves is smaller than the width of the toothed structure.
[0008] Two core board units are arranged as a group and the openings of the first anti-deformation groove are arranged opposite each other. Each core board structure includes at least two groups of core board units. Each group of core board units is arranged adjacent to each other along the arrangement direction of the first anti-deformation groove to form an internal core board.
[0009] Furthermore, side plates are spliced at both ends of the inner core plate in the direction of the first anti-deformation groove arrangement, and the side plates are spliced with the inner core plate to form a core plate structure.
[0010] Furthermore, an intermediate connector is provided between the core board units with opposite side openings in each group, and the two core board units in each group are fixed on both sides of the intermediate connector.
[0011] Furthermore, the intermediate connector is a continuous structure, with both ends of the intermediate connector extending to the side plates on both sides of the inner core plate and being connected and fixed to the side plates.
[0012] Furthermore, a number of second anti-deformation grooves are provided at the margin, the second anti-deformation grooves are arranged parallel to the first anti-deformation grooves, and the length of the first anti-deformation groove is greater than the length of the second anti-deformation groove.
[0013] Furthermore, the second anti-deformation groove is distributed correspondingly to or offset from the first anti-deformation groove.
[0014] Furthermore, a third anti-deformation groove is also provided on the intermediate connecting body.
[0015] Furthermore, a fourth anti-deformation groove is provided on the side plate, and the length direction of the fourth anti-deformation groove is perpendicular to the length direction of the first anti-deformation groove.
[0016] Furthermore, a frame is also provided on the outside of the second anti-deformation groove at the allowance edge.
[0017] This utility model also provides a three-layer composite floor, including a core board structure and panel structures disposed on the upper and lower surfaces of the core board structure; a first locking edge is provided on one side of the core board structure, and a second locking edge is provided on the other side of the core board structure, and adjacent three-layer composite floorboards are spliced together by the first locking edge and the second locking edge engaging.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. This utility model forms anti-deformation joints by setting anti-deformation grooves (first anti-deformation groove, second anti-deformation groove, third anti-deformation groove, fourth anti-deformation groove and fifth anti-deformation groove), so that the core board structure can withstand the deformation stress caused by environmental factors on the wood fiber structure, and avoid the core board structure from deforming and cracking due to temperature and humidity changes during use, thereby improving the durability and strength of the flooring.
[0020] 2. The anti-deformation groove of this application is easy to process and can be formed by direct cutting with a saw blade. Compared with the existing method of arranging and installing wooden strips one by one, it greatly improves the processing efficiency and is conducive to industrial production.
[0021] 3. By setting up intermediate connectors, the overall structure and structural strength can be further improved. In addition, the core board structure can be divided into symmetrically arranged side core boards, which can reduce the size of the solid wood raw materials required for processing core board units or meet the processing needs of larger core board units.
[0022] 4. The setting of the edge board and the allowance edge provides a structural basis for the production of the first and second locking edges when making the floor later. The edge board and the allowance edge can also serve as a frame reinforcement, improving the integrity and strength of the core board structure. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the core board unit structure in Embodiment 1 of this utility model.
[0024] Figure 2 This is a schematic diagram of one splicing of the core board unit in Embodiment 1 of this utility model.
[0025] Figure 3 This is another schematic diagram of the core board unit in Embodiment 1 of this utility model.
[0026] Figure 4 This is a schematic diagram of the floor core structure with anti-deformation seams in Embodiment 2 of this utility model.
[0027] Figure 5 This is a schematic diagram of the floor core structure with anti-deformation seams in Embodiment 3 of this utility model.
[0028] Figure 6 This is a schematic diagram of the second anti-deformation groove in Embodiment 4 of this utility model. Figure 1 .
[0029] Figure 7 This is a schematic diagram of the second anti-deformation groove in Embodiment 4 of this utility model. Figure 2 .
[0030] Figure 8 This is a schematic diagram of the second anti-deformation groove in Embodiment 4 of this utility model. Figure 3 .
[0031] Figure 9 This is a schematic diagram of the second anti-deformation groove in Embodiment 4 of this utility model. Figure 4 .
[0032] Figure 10 This is a schematic diagram of the third anti-deformation groove in Embodiment 5 of this utility model. Figure 1 .
[0033] Figure 11 This is a schematic diagram of the third anti-deformation groove in Embodiment 5 of this utility model. Figure 2 .
[0034] Figure 12 This is a schematic diagram of the third anti-deformation groove in Embodiment 5 of this utility model. Figure 3 .
[0035] Figure 13 This is a schematic diagram of the third anti-deformation groove in Embodiment 5 of this utility model. Figure 4 .
[0036] Figure 14 This is a schematic diagram of the fourth anti-deformation groove in Embodiment 6 of this utility model.
[0037] Figure 15 This is another schematic diagram of the fourth anti-deformation groove in Embodiment 6 of this utility model.
[0038] Figure 16 This is a schematic diagram of the core board unit processing flow in Embodiment 1 of this utility model.
[0039] Figure 17 This is a schematic diagram of the splicing of the three-layer composite floor in Embodiment 7 of this utility model.
[0040] Figure 18 This is a schematic diagram of the three-layer composite floor structure in Embodiment 7 of this utility model.
[0041] Figure 19 This is a schematic diagram of the side core plate division in Embodiment 3 of this utility model.
[0042] Figure 20 This is a schematic diagram of the border setting in Embodiment 4 of this utility model.
[0043] Figure 21 This is a schematic diagram of the splicing of the core board unit in Embodiment 8 of this utility model.
[0044] In the picture:
[0045] 1. Core board unit; 2. First anti-deformation groove; 3. Allowance edge; 4. Tooth structure; 5. Side plate; 6. Intermediate connector; 7. Side core board; 8. Rectangular wooden strip; 9. Core board structure; 10. Panel structure; 11. First locking edge; 12. Second locking edge; 13. First protrusion; 14. First groove; 15. Second protrusion; 16. Second groove; 17. Second anti-deformation groove; 18. Third anti-deformation groove; 19. Fourth anti-deformation groove; 20. Frame; 21. Middle core board; 22. Fifth anti-deformation groove. Detailed Implementation
[0046] The technical solution of this utility model will be further described below with reference to specific embodiments: Example 1
[0047] A floor core structure with anti-deformation joints, such as Figure 1 and Figure 2As shown, the device includes several core board units 1, each core board unit 1 being a rectangular wooden structure. Several first anti-deformation grooves 2 are evenly provided on one side of the core board unit 1. The first anti-deformation grooves 2 form edge openings on one side of the core board unit 1. The first anti-deformation grooves 2 extend along the edge openings toward the opposite side of the core board unit and leave a margin 3 between the opposite side of the core board. The first anti-deformation grooves 2 penetrate through the upper and lower surfaces of the core board unit 1. A tooth structure 4 is formed between the first anti-deformation grooves 2. The width of the first anti-deformation grooves 2 is smaller than the width of the tooth structure 4.
[0048] Two core board units 1 are arranged as a group, with the side openings of the first anti-deformation groove 2 facing inwards. Each core board structure 1 includes at least two groups of core board units, and each group of core board units is sequentially and adjacently spliced along the arrangement direction of the first anti-deformation groove 2 to form an inner core board. The side openings of the two core board units are in contact with each other and are connected by means of adhesive bonding, tenon and mortise joints, etc. Figure 2 There are 8 core board units to form 4 groups of core board units. Each group of core board units 1 is arranged adjacent to each other along the arrangement direction of the first anti-deformation groove 2 to form an internal core board.
[0049] In one specific implementation, due to the large size of the floorboard, the number of core board units in each group of core board units can be increased to obtain a core board structure with a larger board size.
[0050] In another implementation, such as Figure 3 As shown, the side openings of the two core board units 1 in the same group are set to face outwards, and the remaining edge 3 contacts each other and is connected by means of glue bonding, tenon and mortise connection, etc.
[0051] It should be noted that the first anti-deformation grooves of the two core board units 1 in the same group can be completely aligned, but in application, some of the first anti-deformation grooves may be misaligned. This misalignment may be caused by wood processing errors or by human intervention.
[0052] In one specific implementation, the extension length of the first anti-deformation groove 2 is greater than the width of the allowance side 3, and the ratio of the extension length of the first anti-deformation groove to the width of the allowance side is ≤7:3. The anti-deformation groove is formed by cutting with a saw blade, and the width is set at 1-4mm. When processing the core board unit, a rectangular wooden strip 8 is first processed. The length of the rectangular wooden strip 8 is the height direction of the wood, i.e., the tree. Several evenly distributed first anti-deformation grooves 2 are cut along the length direction of the rectangular wooden strip 8. Then, according to the required thickness of the core board unit 1, the rectangular wooden strip 8 is sliced to form the core board unit 1, such as... Figure 16 As shown. Example 2
[0053] like Figure 4As shown, side panels 5 are spliced at both ends of the inner core board in the direction of the first anti-deformation groove. The side panels 5 and the inner core board 1 are spliced to form a core board structure. The side panels 5 can be made of the same wood as the inner core board, or different wood. For example, if the inner core board 1 is made of pine, the side panels can be made of pine, or different woods such as oak or mahogany can be used. The side panels and the inner core board are connected and fixed by means of glue, tenon and mortise and tenon joints, etc. Example 3
[0054] like Figure 5 As shown, an intermediate connector 6 is provided between the core board units 1 with opposite side openings in each group. The two core board units of each group of core board units 1 are fixed on both sides of the intermediate connector 6, and the connection method is such as glue bonding, mortise and tenon connection, etc. Unlike the side board 5, the material of the intermediate connector 6 is not limited to wood, but can also be metal, composite fiber material, polymer material, etc., such as aluminum alloy profile, wood, reconstituted bamboo, and conventional rigid plastics such as polypropylene.
[0055] The intermediate connector 6 is a continuous structure. Both ends of the intermediate connector 6 extend to the side plates 5 on both sides of the inner core board and are connected and fixed to the side plates 5. The intermediate connector 6 and the side plates 5 are bonded together with glue.
[0056] In one implementation, the core board structure includes symmetrically arranged side core boards 7, such as... Figure 19 As shown, the side core panels are symmetrically arranged at the width centerline of the middle connecting body 6. After the two side core panels 7 are made separately, they are spliced together at the width centerline of the middle connecting body 6 and fixed by adhesive during splicing. Example 4
[0057] Compared to the above embodiment, a plurality of second anti-deformation grooves 17 are provided at the margin edge 3. The second anti-deformation grooves 17 are arranged parallel to the first anti-deformation groove 2, and the length of the first anti-deformation groove 17 is greater than the length of the second anti-deformation groove 2.
[0058] The second anti-deformation groove 17 can correspond one-to-one with the first anti-deformation groove 2, such as Figures 6 to 8 As shown, the second anti-deformation groove 17 can also be staggered with the first anti-deformation groove 2, such as... Figure 9 As shown.
[0059] A frame 20 is also provided on the outer side of the second anti-deformation groove 2 at the allowance edge 3. The frame 20 and the side plate 5 enclose a rectangular frame, such as Figure 20 As shown. Example 5
[0060] A third anti-deformation groove 18 is also provided on the intermediate connecting body 6. The third anti-deformation groove 18 can be provided along both sides of the intermediate connecting body, and its direction is consistent with the direction of the first anti-deformation groove 2, such as... Figure 10 As shown;
[0061] The third anti-deformation groove 18 can also be set at an angle relative to the first anti-deformation groove 2, such as... Figure 11 As shown;
[0062] The third anti-deformation groove 18 can also be set along a direction perpendicular to the first anti-deformation groove 2, that is, along the length of the intermediate connecting body 6, and can be a point-discontinuous type, such as... Figure 12 As shown; it can also be continuous, as shown in the image. Figure 13 As shown. Example 6
[0063] A fourth anti-deformation groove 19 is provided on the side plate 5. The length direction of the fourth anti-deformation groove 19 is perpendicular to the length direction of the first anti-deformation groove 2. In this embodiment, two types of fourth anti-deformation grooves 19 are provided, one of which is as follows: Figure 14 As shown, the fourth anti-deformation groove 19 forms an opening on the outer side of the side plate 5; another type is as follows: Figure 15 As shown, the fourth anti-deformation groove 19 forms an opening on the inner side of the side plate 5. Example 7
[0064] A type of three-layer composite flooring, such as Figure 17 and Figure 18 As shown, the system includes a core board structure 9 and panel structures 10 disposed on the upper and lower surfaces of the core board structure 9. The panel structures are bonded to the core board structure 9 with adhesive. One side of the core board structure is provided with a first locking edge 11, and the other side of the core board structure 9 is provided with a second locking edge 12. Adjacent three-layer composite flooring is spliced together by the interlocking of the first locking edge 11 and the second locking edge 9. The first locking edge and the second locking edge are milled out on the excess edge and / or edge plate of the core board structure by a milling cutter. When there is no edge plate, the tooth structure of the core board unit near the edge can be appropriately widened. The first locking edge 11 has a first protrusion 13 and a first groove 14, and the second locking edge 12 has a second protrusion 15 and a second groove 16. The first protrusion 13 of the first locking edge 11 engages with the second groove 16, and the second protrusion 15 of the second locking edge 12 engages with the first groove 14. Example 8
[0065] like Figure 21 As shown, a central core board 21 is also provided between two adjacent core board units 1. A fifth anti-deformation groove 22 is symmetrically provided on both sides of the central core board 21. The fifth anti-deformation groove 22 forms an opening on the side of the central core board 21. The central core board 21 is connected and fixed to the adjacent core board unit 1 by means of glue bonding, tenon and mortise and tenon joints, etc.
[0066] This embodiment is merely a further explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art can make non-inventive modifications to this embodiment as needed, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.
Claims
1. A floor core structure with anti-deformation joints, characterized in that, The device includes several core board units, each being a rectangular wooden structure. Several first anti-deformation grooves are evenly distributed on one side of each core board unit. Each first anti-deformation groove forms an edge opening on one side of the core board unit. The first anti-deformation groove extends along the edge opening towards the opposite side of the core board, leaving a margin between the opposite side. The first anti-deformation groove penetrates both the upper and lower surfaces of the core board unit. A toothed structure is formed between the first anti-deformation grooves, and the width of the first anti-deformation groove is smaller than the width of the toothed structure. Two core board units are grouped together and the side openings of the first anti-deformation groove are arranged opposite each other. Each core board structure includes at least two groups of core board units. Each group of core board units is sequentially spliced together along the arrangement direction of the first anti-deformation groove to form an internal core board.
2. The floor core structure with anti-deformation joints according to claim 1, characterized in that, The inner core plate is spliced with side plates at both ends of the first anti-deformation groove arrangement direction, and the side plates and the inner core plate are spliced together to form a core plate structure.
3. A floor core structure with anti-deformation joints according to claim 2, characterized in that, An intermediate connector is provided between the core board units with opposite side openings in each group, and the two core board units in each group are fixed on both sides of the intermediate connector.
4. A floor core structure with anti-deformation joints according to claim 3, characterized in that, The intermediate connector is a continuous structure, with both ends extending to the side plates on both sides of the inner core plate and being connected and fixed to the side plates.
5. A floor core structure with anti-deformation joints according to claim 1, characterized in that, A plurality of second anti-deformation grooves are provided at the margin, the second anti-deformation grooves are arranged parallel to the first anti-deformation grooves, and the length of the first anti-deformation groove is greater than the length of the second anti-deformation groove.
6. A floor core structure with anti-deformation joints according to claim 5, characterized in that, The second anti-deformation groove corresponds to or is staggered with the first anti-deformation groove.
7. A floor core structure with anti-deformation joints according to claim 3, characterized in that, The intermediate connector is also provided with a third anti-deformation groove.
8. A floor core structure with anti-deformation joints according to claim 2, characterized in that, The side plate is provided with a fourth anti-deformation groove, and the length direction of the fourth anti-deformation groove is perpendicular to the length direction of the first anti-deformation groove.
9. A floor core structure with anti-deformation joints according to claim 5, characterized in that, A frame is also provided on the outside of the second anti-deformation groove at the margin edge.
10. A three-layer composite flooring, characterized in that, The core board structure includes a core board structure and panel structures disposed on the upper and lower surfaces of the core board structure. The core board structure is as described in any one of claims 1-9. A first locking edge is provided on one side of the core board structure, and a second locking edge is provided on the other side of the core board structure. Adjacent three-layer composite flooring is spliced together by the first locking edge and the second locking edge engaging.