Panel insert, spliced core panel, composite panel with the core panel and manufacturing method

Abstract

The present application relates to the technical field of plate, and particularly relates to a spliced board insert, a spliced core board, a composite board with the core board and a manufacturing method, the spliced board insert comprising: a columnar insert body; at least two insert supports formed on the outer side of the insert body and extending outward, and the at least two insert supports in the form of a sheet are formed on the opposite sides of the insert body. The present application utilizes the glue-free splicing design of the spliced board insert and the insert groove of a splicing unit element (such as a wood strip, a wood block or the like), the formed spliced core board can effectively remove the internal stress of the spliced board at the physical level, can greatly improve the flatness and use stability of the final product board, realizes the accurate positioning assembly of the spliced board in the horizontal and vertical directions, the tight spliced board connection of the dovetail groove of the spliced core board, and can also greatly reduce the formaldehyde content, so that the use of the board is more healthy and environmentally friendly.

Description

Technical Field

[0001] This invention relates to the field of panel technology, and specifically to a panel insert, a splicing core board, a composite panel with the core board, and a method for manufacturing the same. Background Technology

[0002] Solid wood spliced ​​boards are made by splicing multiple solid wood strips together. They retain the natural properties of solid wood while optimizing the process to solve problems such as easy deformation of whole solid wood boards, material waste, and large amounts of glue used.

[0003] Solid wood spliced ​​panels include straight-jointed panels and finger-jointed panels. Straight-jointed panels are made by directly splicing narrow strips of solid wood along their length and width, resulting in straight joints, similar to multiple strips glued side-by-side. This splicing method maintains the continuity of the wood grain, making the finished panel look more natural and aesthetically pleasing. Finger-jointed panels are made by processing the ends of small pieces of solid wood into a toothed shape (similar to interlaced fingers), which are then joined together through a toothed joint, resulting in a serrated or wavy joint. The resulting long strips are then trimmed on all four sides using a woodworking four-sided planer, glue is applied to the sides, and the number of long strips is calculated according to the panel design specifications. These strips are then arranged flat and joined together using a splicing machine. After the glue has cured, the rough spliced ​​panels are planed to remove any unevenness and excess glue lines at the side-press joints. Finally, a sander is used to finely adjust the thickness, creating the final solid wood spliced ​​panel. This splicing method makes full use of short pieces of wood, improving wood utilization.

[0004] However, both straight-jointed and finger-jointed boards require glue to be applied at the joints to achieve splicing. The large amount of glue used in the splicing process raises environmental concerns, including formaldehyde risks. Furthermore, the side-jointing gluing technique involves complex production steps, including gluing, pressing, curing, glue hardening, planing, and sanding for thickness determination. While large-format boards made from narrow boards using the above process effectively improve the problems of deformation and splitting of wide boards, they still face issues of expansion and contraction due to moisture and slight surface deformation in harsh environments. Therefore, further improvements are still necessary. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the prior art and provide a splicing plug, splicing core board, composite board with the core board and manufacturing method, which solves the problems of existing splicing boards with adhesive bonding having formaldehyde risk, environmental protection issues, complicated processes, and the fact that the spliced ​​boards still have the problems of wet expansion and dry shrinkage and slight deformation of the board surface after processing.

[0006] The technical solution to achieve the above objectives is: This invention provides a panel insert, comprising: A plug-in body shaped like a column; At least two sheet-like plug-in brackets are formed on the outer side of the plug-in body and extend outward, the at least two plug-in brackets being formed on opposite sides of the plug-in body.

[0007] The present invention also provides a splicing core board, comprising: Multiple splicing unit components, each splicing unit component including two opposing end faces and a splicing surface, the splicing surface being provided with a tenon groove, the distance between the two end faces of each splicing unit component being approximately equal or equal, the multiple splicing unit components being arranged in a plane with their splicing surfaces facing each other (joining). A panel insert is provided between the splicing surfaces of two splicing unit components, and the insertion bracket on the panel insert is inserted into the corresponding insertion tenon groove, thereby realizing the splicing connection between the splicing unit components to form the splicing core board.

[0008] This invention also provides a composite board with a spliced ​​core panel, comprising: splicing core board; A balance plate is applied to the surface of the splicing core board.

[0009] This invention also provides a method for manufacturing a spliced ​​core board, comprising the following steps: Multiple wooden strips are provided, each wooden strip having two opposite end faces and a splicing surface, and the splicing surface of the wooden strips is provided with a tenon groove, and the distance between the two end faces of each wooden strip is approximately equal or equal; Multiple wooden strips are arranged in a row on a plane with their splicing surfaces facing each other (joining). Multiple splicing inserts are provided, and the splicing inserts are placed between the splicing surfaces of two adjacent wooden strips, with the insertion bracket end edge of the splicing insert pre-inserted into the corresponding insertion tenon groove; Lateral thrust is applied to both sides of multiple wooden strips arranged in a row to allow the splicing insert bracket to be inserted into the corresponding tenon groove for positioning, thereby producing a splicing core board.

[0010] This invention also provides a method for manufacturing a spliced ​​core board, comprising the following steps: Multiple wooden strips are provided, each wooden strip having two opposite end faces and a splicing surface, and the splicing surface of the wooden strips is provided with a tenon groove, and the distance between the two end faces of each wooden strip is approximately equal or equal; Multiple wooden strips are arranged in a row with their splicing surfaces facing each other on a plane; Multiple splicing inserts are provided, which are inserted from the end faces of two adjacent wooden strips into the corresponding tenon grooves to produce a spliced ​​core board.

[0011] This invention also provides a method for manufacturing a spliced ​​core board, comprising the following steps: Multiple wooden strips are provided, each wooden strip having two opposite end faces and a splicing surface, and the splicing surface of the wooden strips is provided with a tenon groove, and the distance between the two end faces of each wooden strip is approximately equal or equal; Multiple splicing plugs are provided, which are used to splice and connect multiple wooden strips into a splicing unit of the required size; Multiple panel units are stacked and connected to form a composite unit of the required size; Along the length of the wooden strip, the composite unit is cut according to the required thickness of the splicing core board to obtain multiple splicing core boards.

[0012] The beneficial effects of the present invention, including the panel insert, the splicing core board, the composite board with the core board, and the manufacturing method, are as follows: The panel connector of this invention is used to connect splicing unit components (such as wooden strips, wooden blocks, etc.). The connector, through interlocking brackets located on opposite sides, is inserted into the corresponding splicing tenon grooves of the splicing unit components, achieving a tight connection with precise horizontal and vertical dimensional positioning of the spliced ​​panels. This connector eliminates the need for glue and adhesives, reducing the content of formaldehyde and VOCs (volatile organic compounds), making the panels healthier and more environmentally friendly, meeting high-end environmental standards.

[0013] The number of insertion brackets of the splicing plug of the present invention is greater than or equal to one. When there are two or more insertion brackets on one side of the plug body, the outer ends of the insertion brackets are set in a state of being far apart. After the insertion bracket is inserted into the corresponding splicing tenon groove, a double contraction of dovetail tenon is formed, so that the connected boards are tightly connected in the horizontal direction, and have high positioning connection stability.

[0014] The splicing insert of the present invention has barbs on its insertion bracket, which improves the tightness of the splicing connection after the insertion bracket is inserted into the corresponding splicing tenon groove, so that the splicing boards are firmly connected without loosening, displacement or falling off.

[0015] The splicing insert of the present invention has a positioning section at the end of its insertion bracket. This positioning section serves as a pre-positioning mechanism. In use, the positioning section can be pre-inserted into the corresponding mortise and tenon groove of the wooden strip for positioning, and then the splicing insert is fully inserted into the mortise and tenon groove by lateral pressure. When the positioning section is inserted into the corresponding mortise and tenon groove, it can accurately guide as much insertion as possible into the corresponding mortise and tenon groove entrance. This improves the stability of the splicing insert's rapid positioning and insertion into the mortise and tenon groove, avoiding the failure of splicing unit components and splicing inserts to connect during splicing due to misalignment between the insertion bracket and the mortise and tenon groove, and greatly avoiding the problem of defective spliced ​​products.

[0016] The splicing insert of this invention is provided with a separator bracket, which separates two adjacent splicing units, thereby forming a gap between the two splicing units. The existence of this gap can increase the surface area of ​​the splicing core board, saving materials and reducing costs. This gap also provides space for the expansion volume of the wood, and the splicing wood strips can shrink individually in harsh dry environments, avoiding large-scale dimensional shrinkage of the board. This allows the board to have good dimensional stability against deformation in various extreme applications (coastal areas, underfloor heating, etc.).

[0017] The splicing core board of the present invention can be constructed by combining wooden strips and splicing plugs. The splicing plugs are inserted into the splicing tenon grooves on the wooden strips to form a dovetail tenon bidirectional limiting locking connection structure, which replaces the traditional glue splicing process that is labor-intensive, time-consuming, wasteful, and costly.

[0018] The splicing core board of this invention can also be constructed by combining wooden blocks and splicing inserts. The wooden blocks are small in size and have a low coefficient of expansion and contraction, which essentially avoids the problems of stress and deformation. Moreover, the wooden blocks are easy to manufacture and can be made from fast-growing woods with small to medium diameters (such as poplar, fir, pine, birch, eucalyptus, acacia, and privet). Furthermore, a partition board can be set between two rows of wooden blocks, which not only improves the integrity between the wooden blocks, but also improves the overall flatness and stability of the splicing core board and better reduces the risk of warping in the final product.

[0019] This invention utilizes the interlocking groove design of panel inserts and splicing unit components (such as wooden strips and blocks) to form a spliced ​​core board. This effectively removes the internal stress of the panels at the physical level, significantly improving the flatness and stability of the final finished board. It achieves precise horizontal and vertical dimensional positioning and assembly of the panels, and tight splicing of the dovetail grooves in the spliced ​​core board. At the same time, it can also significantly reduce formaldehyde content, making the board healthier and more environmentally friendly.

[0020] The composite board with splicing core board of the present invention has a balancing plate (such as veneer, artificial board, aluminum plate or metal plate) covering the surface of the splicing core board. The wood grain fiber of the balancing plate is bonded to the splicing core board in the warp and weft directions, which realizes the constraint of the wood block and the balancing plate to a small amount of expansion and contraction, and can resist the deformation of the board. If the product is used in wooden door products, aluminum plate or metal balancing plate is covered on the upper and lower surfaces of the splicing core board, which also has flame retardant and fireproof and impact resistant effects. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the first embodiment of the panel insert of the present invention, which has two plug-in brackets.

[0022] Figure 2 This is a schematic diagram of another variation of the first embodiment of the panel insert of the present invention.

[0023] Figure 3 This is a three-dimensional structural diagram of the second embodiment of the panel insert of the present invention, namely, having four plug-in brackets.

[0024] Figure 4 for Figure 3 Side view of the end side of the structure shown.

[0025] Figure 5 This is a schematic diagram of a modified form of the second embodiment of the splicing plug of the present invention, which has barbed tabs.

[0026] Figure 6 for Figure 5 Side view of the end side of the structure shown.

[0027] Figure 7 This is a three-dimensional structural diagram of a modified form of the second embodiment of the panel insert of the present invention, which includes a partition bracket.

[0028] Figure 8 for Figure 7 Side view of the end side of the structure shown.

[0029] Figure 9 This is a three-dimensional structural diagram of a modified form of the second embodiment of the splicing plug of the present invention, which includes barbs and a separator bracket.

[0030] Figure 10 This is a side view of a modified form of the second embodiment of the splicing insert of the present invention, which includes barbs and a separator bracket.

[0031] Figure 11 This is a schematic diagram of a modified form of the connection between the partition bracket and the plug-in body in the second embodiment of the panel plug-in of the present invention.

[0032] Figure 12This is a side view of a third embodiment of the interlocking panel of the present invention, showing a deformed form with barbs and no elasticity.

[0033] Figure 13 for Figure 12 A three-dimensional structural diagram of the structure shown.

[0034] Figure 14 This is a schematic diagram of the fourth embodiment of the panel insert of the present invention, which has six plug-in brackets.

[0035] Figure 15 This is a side view of a modified form of the fourth embodiment of the panel insert of the present invention, which includes a partition bracket.

[0036] Figure 16 In order to be in Figure 15 The diagram shows a structure without barbs on the central insertion bracket.

[0037] Figure 17 for Figure 15 A schematic diagram of another variation of the structure shown.

[0038] Figure 18 This is a structural schematic diagram of a modified form of the connection between the partition bracket and the plug-in body in the fourth embodiment of the panel plug-in of the present invention.

[0039] Figure 19 This is a schematic diagram showing the connection between the first embodiment of the panel insert and the first embodiment of the splicing unit of the present invention.

[0040] Figure 20 This is a schematic diagram of the structure of the first embodiment of the splicing core board of the present invention, which is composed of a first embodiment of the splicing plug, a first embodiment of the splicing unit, and an outer side plate.

[0041] Figure 21 This is a schematic diagram of the second embodiment of the splicing unit components of the present invention, which are connected by splicing plugs to form a splicing core board.

[0042] Figures 22 to 24 This is an exploded structural diagram illustrating the process of inserting the second embodiment of the panel insert of the present invention into the tenon groove of the second embodiment of the splicing unit.

[0043] Figure 25 This is a structural schematic diagram of a third embodiment of the splicing core board of the present invention, which consists of a second embodiment of the splicing insert, a second embodiment of the splicing unit, an outer side plate, and a spacer plate.

[0044] Figure 26 This is a schematic diagram of a modified form of the third embodiment of the splicing core board of the present invention.

[0045] Figure 27 This is a schematic diagram of another modified form of the third embodiment of the splicing core board of the present invention.

[0046] Figure 28 This is a structural schematic diagram of another variation of the third embodiment of the splicing core board of the present invention.

[0047] Figure 29 This is a three-dimensional structural diagram showing the connection between the fourth embodiment of the splicing unit and the second embodiment of the splicing plug-in of the present invention.

[0048] Figure 30 This is a schematic diagram of the structure of the third embodiment of the splicing plug of the present invention, which is inserted from the end face into the tenon groove of the third embodiment of the splicing unit.

[0049] Figure 31 This is a schematic diagram of the fifth embodiment of the present invention, in which splicing unit components are connected by splicing plugs to form a splicing core board according to the fourth embodiment.

[0050] Figures 32 to 34 This is an exploded structural diagram illustrating the process of inserting the panel insert of the fourth embodiment of the present invention into the tenon groove on the splicing unit.

[0051] Figure 35 This is a side view of the end face of the fourth embodiment of the panel insert of the present invention, inserted into a splicing unit.

[0052] Figure 36 This is a schematic diagram of the structure of the sixth embodiment of the splicing core board of the present invention, which is composed of the fourth embodiment of the splicing plug, the splicing unit and the outer side plate.

[0053] Figure 37 This is a schematic diagram of a modified form of the sixth embodiment of the splicing core board of the present invention.

[0054] Figure 38 This is an exploded structural diagram of the fourth embodiment of the present invention, which connects wooden strips and panel inserts.

[0055] Figure 39 for Figure 38 The diagram shows the structure of the spliced ​​core board formed after the structures are connected.

[0056] Figure 40 This is a side view of the end face of a splicing core board formed by splicing the splicing unit components of the present invention through a third embodiment of the splicing plug.

[0057] Figure 41 In order to be in Figure 40 The diagram shows a structure with grooves on the surface of the splicing unit components.

[0058] Figures 42 to 45 In order to be in Figure 41 Based on this, a structural diagram is shown of different groove splicing core boards formed by changing the groove shape.

[0059] Figure 46 This is a structural schematic diagram of the first embodiment of the present invention, which connects the spliced ​​core board, the wooden balance board, and the decorative panel to form a composite board.

[0060] Figure 47 for Figure 46 A magnified view of a portion of point A1 in the diagram.

[0061] Figure 48 This is a schematic diagram of a second embodiment of the present invention, showing how a spliced ​​core board is connected with a balance board and a decorative panel of another material to form a composite board.

[0062] Figure 49 for Figure 48 A magnified view of part A2 in the diagram.

[0063] Figure 50 This is a structural schematic diagram of a third embodiment of the present invention, in which a spliced ​​core board is connected to a wooden balance board to form a composite board.

[0064] Figure 51 This is a structural schematic diagram of a fourth embodiment of the present invention, in which a splicing core board (some splicing unit components are in a separated state) is connected to a wooden balance board to form a composite board.

[0065] Figure 52 This is a structural schematic diagram of a fourth embodiment of the present invention, in which a spliced ​​core board is connected to a wooden balance board to form a composite board.

[0066] Figure 53 for Figure 52 A magnified view of part A3 in the diagram.

[0067] Figure 54 This is an exploded view of the stacked plate unit, outer plate, and spacer plate of the present invention.

[0068] Figure 55 for Figure 54 The diagram shows a three-dimensional structure of a composite unit formed by lamination.

[0069] Figure 56 for Figure 55 The diagram shows a structure that is cut to form multiple spliced ​​core boards.

[0070] Explanation of reference numerals in the attached figures: 20, 20A, 20B, 20C - Composite panels; 22, 22A, 22B, 22D, 22E, 22F, 22G, 22H, 22I, 22J, 22K - splicing core panels; 24, 24A, 24B - balance panels; 26, 26A - decorative panels; 222, 222A, 222B, 222C - Panel inserts; 2221, 2221A, 2221B, 2221C - Insert body; 2225 - Edge abutment; 2222, 2222A, 2222B, 2222C - Separator brackets; 2223A, 2223C - Connectors; 2224, 2224A, 2224B, 2224C - Insertion brackets; 2227, 2227A, 2227C - Positioning sections; 2228, 2228A, 2228B, 2228C - Blade edges; 2226, 2226A, 2226B, 2226C - Barbs; 220, 220A, 220B, 220C, 220D, 220E, 220F, 220G, 220H, 220I, 220J - splicing unit components; 2201, 2201A, 2201C, 2201D, 2201F, 2201G, 2201H, 2201I, 2201J - end faces; 2202, 2202A, 2202C, 2202D, 2202F, 2202G, 2202H, 2202I, 2202J - Joint surfaces; 2204, 2204A, 2204B, 2204C, 2204D, 2204E, 2204F, 2204G - Mortise and tenon joints; 2204D1 - Upper mortise and tenon joint; 2204D2 - Middle mortise and tenon joint; 2204D3 - Lower mortise and tenon joint; 2205, 2205A, 2205B, 2205C, 2205D - Reception groove; 2205A1, 2205C1, 2205D1 - Upper groove wall; 2205A2, 2205C2, 2205D2 - Lower groove wall; 2206A, 2206D, 2206C, 2206D - Chamfered surface; 2207C, 2207F, 2207G, 2207I, 2207J - Groove; 2203F, 2203G - Side surface; 224, 224B, 224' - Outer side plate; 226B, 226' - Spacer plate; 22', 22'B, 22'E - Panel unit; 20K - Composite unit. Detailed Implementation

[0071] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0072] See Figure 1This invention provides a panel insert, a splicing core board, a composite board with the core board, and a manufacturing method thereof, addressing the environmental issues and complex production processes associated with existing solid wood splicing boards that rely on adhesives for bonding. The panel insert of this invention enables the splicing connection of unit components, achieving precise horizontal and vertical dimensional positioning and a tight, rapid splicing connection. This panel insert eliminates the need for glue and adhesives, reducing formaldehyde and VOC (volatile organic compounds) content, making the board healthier and more environmentally friendly, meeting high-end environmental standards. The panel insert, splicing core board, composite board with the core board, and manufacturing method of this invention are described below with reference to the accompanying drawings.

[0073] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0074] See Figure 1 This shows a schematic diagram of the first embodiment of the panel insert of the present invention, which has two plug-in brackets. The following is in conjunction with... Figure 1 The structure of the panel insert of the present invention will be described.

[0075] like Figure 1 As shown, the panel insert 222 of the present invention includes an insert body 2221 and a plug-in bracket 2224. The insert body 2221 is columnar, and the plug-in bracket 2224 is formed on the outer side of the insert body 2221 and extends outward. The plug-in bracket 2224 is sheet-like. Specifically, one end of the plug-in bracket 2224 is connected to the insert body 2221 (which may be integrally formed), and the other end of the plug-in bracket 2224 extends outward. The number of plug-in brackets 2224 is at least two, and the at least two plug-in brackets 2224 are formed on opposite sides of the insert body 2221.

[0076] like Figure 1 As shown, in the first embodiment, there are two plug-in brackets 2224, which are formed on opposite sides of the plug-in body 2221. The plug-in body 2221 is provided with an abutment edge 2225 near the position where the plug-in brackets 2224 are formed. The abutment edge 2225 is formed on the side of the plug-in body 2221 and is located near the plug-in brackets 2224.

[0077] Furthermore, such as Figure 1 As shown, in a preferred embodiment, the abutting edge 2225 is an arc-shaped edge. Or as... Figure 2 As shown, in another preferred embodiment, the abutting edge 2225 is a slanted edge. Furthermore, the abutting edge 2225 can also be a straight edge.

[0078] In the first embodiment, the outer contour of the plug-in body 2221 is preferably circular, square or other shapes.

[0079] like Figure 3 As shown, in the second embodiment, there are four plug-in brackets 2224A, which are formed in pairs on opposite sides of the plug-in body 2221A. The ends of the two plug-in brackets 2224A on the same side that are furthest from the plug-in body 2221A are positioned far apart. This arrangement allows the plug-in brackets 2224A to have high anti-separation capability after being combined with the splicing unit, thus improving the connection stability between the splicing units.

[0080] In this second embodiment, the outer contour of the plug-in body 2221A is H-shaped. The overall outer contour of the panel plug-in is generally X-shaped or H-shaped.

[0081] like Figure 14 As shown, in the fourth embodiment, there are six insertion brackets 2224C. Three outwardly extending insertion brackets 2224C are formed on each of the opposite sides of the plug-in body 2221C, namely an upper insertion bracket, a middle insertion bracket, and a lower insertion bracket. The outward extension length of the middle insertion bracket is greater than that of the upper and lower insertion brackets. The middle insertion bracket serves as the installation positioning component. When installing the panel plug-in, the panel plug-in can be partially inserted into the corresponding insertion tenon groove to achieve assembly positioning. After the panel plug-in 222C is installed and positioned, it can be pushed laterally by equipment such as a side press to fully insert the three insertion brackets 2224C of the panel plug-in 222C into the corresponding insertion tenon groove for positioning, thereby completing the splicing connection.

[0082] Furthermore, based on the third embodiment, the following modifications can be made, such as forming one or more barbs 2226C on the upper and lower plug-in brackets. Even further, the barbs 2226C are paired and arranged at corresponding positions on both sides of the upper and lower plug-in brackets. The arrangement of the barbs 2226C can improve the tightness of the plug-in connection and enhance the anti-separation capability of the plug-in connection.

[0083] Furthermore, based on this third embodiment, the following modifications can be made, such as providing a barb 2226C on the central insertion bracket. Further, the barb 2226C on the central insertion bracket is positioned away from its end edge. For example... Figure 15 As shown, two pairs of barbed tabs 2226C are provided on the middle insertion bracket. (As...) Figure 17 As shown, a pair of barbed tabs 2226C are provided on the middle insertion bracket.

[0084] In one specific embodiment of the present invention, at least a portion of the plug-in brackets 2224 are provided with one or more barbs 2226. That is, the barbs 2226 can be provided on a portion of the plug-in brackets 2224, or they can be provided on all of the plug-in brackets 2224. Specifically, as shown... Figure 1 As shown, when there are two plug-in brackets 2224, barbs 2226 can be provided on both plug-in brackets 2224. For example... Figure 6 As shown, when there are four plug-in brackets 2224A, barbs 2226A can be provided on all four plug-in brackets 2224A, or barbs 2226A can be provided on two plug-in brackets 2224A (for example, barbs can be provided on the two plug-in brackets 2224A located at the top). Figure 15 As shown, when there are six plug-in brackets 2224C, barbs 2226C can be installed on four of the plug-in brackets 2224C.

[0085] When there are multiple barbs 2226, the barbs 2226 can be arranged at equal or unequal intervals on the insertion bracket 2224. Preferably, the barbs 2226 are provided on the upper and lower surfaces of the insertion bracket 2224. When the insertion bracket 2224 is inserted into the corresponding insertion groove, the barbs 2226 can contact the corresponding groove wall in the insertion groove to improve the anti-separation ability of the insertion bracket 2224.

[0086] Of course, the number of plug-in brackets 2224 is not limited to an even number; it can also be an odd number, such as three or four, with one plug-in bracket 2224 located on one side of the plug-in body 2221 and the other two or three plug-in brackets 2224 located on the other side of the plug-in body 2221.

[0087] In one specific embodiment of the present invention, such as Figure 1 and Figure 2 As shown, a positioning segment 2227 is formed on one end edge of the plug-in bracket 2224 away from the plug-in body 2221. This positioning segment 2227 is used to pre-position the installation of the panel plug-in 222. The setting of the positioning segment 2227 allows the plug-in bracket 2224 to be conveniently and accurately inserted into the corresponding plug-in tenon groove during installation. This improves the stability of the panel plug-in installation, avoids misalignment and shaking, improves the operability of the splicing connection, and also improves the splicing quality.

[0088] like Figure 5 and Figure 6As shown, in the second embodiment, when the plug-in bracket 2224A is provided with barbs 2226A at intervals, the positioning segment 2227A is located between the end edge of the plug-in bracket 2224A and the first barb 2226A. The setting of the positioning segment 2227A is equivalent to reducing the number of barbs 2226A. When the plug-in bracket 2224A is inserted into the plug-in tenon groove, the positioning segment 2227A can be pre-inserted into the plug-in tenon groove, so that the first barb 2226A contacts the corresponding groove wall of the plug-in tenon groove. This allows all the plug-in brackets 2224A to be accurately guided into their respective plug-in tenon grooves, improving the ease of installation and stability of the splicing plug 222A.

[0089] like Figure 15 As shown, in the third embodiment, the positioning segment 2227C is located at the end edge of the middle insertion bracket, while the end edges of the upper insertion bracket and the lower insertion bracket are not provided with the positioning segment 2227C. When installing the panel plug-in 222C, the positioning segment 2227C of the middle insertion bracket can be completely inserted into the corresponding insertion tenon groove to play a role in pre-positioning and guiding.

[0090] In one specific embodiment of the present invention, such as Figure 2 As shown, at least two plug-in brackets 2224 are formed on opposite sides of the plug-in body 2221 (in Figure 2 (The middle is the left and right sides); the plug-in body 2221 is provided with outwardly extending partition brackets 2222 on opposite sides forming the plug-in bracket 2224 (in Figure 2 (The middle section consists of the top and bottom sides).

[0091] like Figure 7 and Figure 8 As shown, in the second embodiment, the upper and lower sides (i.e. the sides where the plug-in bracket is not formed) of the plug-in body 2221A are provided with outwardly extending partition brackets 2222A, which are perpendicular to the upper and lower side surfaces of the plug-in body 2221A.

[0092] The partition brackets 2222 and 2222A are sheet-like, plate-like, or rod-like structures. The partition brackets 2222 and 2222A create gaps between two splicing unit components. These gaps increase the surface area of ​​the splicing core board, saving materials and reducing costs. These gaps also provide space for the wood to absorb moisture and expand, and the splicing strips can shrink individually in harsh, dry environments, avoiding significant dimensional shrinkage of the board. This ensures the board maintains excellent dimensional stability and resistance to deformation in various extreme applications (coastal areas, geothermal heating, etc.).

[0093] Furthermore, the partition brackets 2222 and 2222A are made of elastic material. The partition brackets 2222 and 2222A are elastic and can deform, so that the core board or composite board made of the panel plug can avoid friction noise during use.

[0094] The partition brackets 2222 and 2222A can be integrally formed with the plug-in body 2221, or they can be plugged in for connection. For example... Figure 11 As shown, based on the second embodiment, connecting grooves are provided on opposite sides of the plug-in body 2221A where the plug-in bracket 2224A is not formed, and a connector 2223A is formed at the end of the partition bracket 2222A. The connector 2223A is inserted into the connecting groove to realize the plug-in connection between the partition bracket 2222A and the plug-in body 2221A. Figure 11 In the example shown, the outer contour of connector 2222A is circular.

[0095] like Figure 18 As shown, based on the fourth embodiment, a connector 2223C is formed at the end of the partition bracket 2222C. The outer contour of the connector 2223C is triangular. The connector 2223C and the partition bracket 2222C are inserted into the corresponding side groove on the plug-in body 2221C as a component. Alternatively, the connector 2223C and the partition bracket 2222C are integrally formed with the plug-in body 2221 using the soft and hard co-extrusion production technology of plastic extrusion equipment. Furthermore, the connector 2223C and the partition bracket 2222C are made of elastic material, which has a high degree of flexible deformation and spacing, and can avoid the abnormal noise of mutual friction between the splicing core surfaces of multiple splicing units during the use of the manufactured panel.

[0096] In one specific embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the edge of the plug-in bracket 2224 away from the plug-in body 2221 is a cutting edge 2228. The cutting edge 2228 facilitates the insertion of the plug-in bracket 2224 into the corresponding plug-in tenon groove.

[0097] like Figure 3 As shown, the panel insert 222A can be in the form of a strip or a block, etc. The length of the panel insert 222A can be determined according to actual usage requirements. The insert body 2221A is columnar, and its outer contour can be circular, square, rhomboid, I-shaped, X-shaped, or king-shaped, etc. The insertion bracket 2224A can be sheet-like and is integrally formed with the insert body 2221A. The panel insert 222A (i.e., the insert body 2221A and the insertion bracket 2224A) can be made of polymer or metal materials, such as PVC, PP, ABS, aluminum alloy, zinc alloy, etc. Figures 22 to 24 As shown, the panel insert 222A can be elastic, allowing it to fully insert into the corresponding tenon 2204A through its own deformation during insertion into the tenon 2204A. For example... Figure 30 As shown, the panel insert 222B is non-deformable and can be inserted into the tenon groove 2204C of the self-assembly unit 220C.

[0098] The following describes several structural forms of the panel plug-in provided by this invention.

[0099] like Figure 1 The diagram shows a first embodiment of the panel insert 222, which includes two insertion brackets 2224 formed on the left and right sides of the insert body 2221. Barbs 2226 are spaced apart on the two insertion brackets 2224, located on the upper and lower sides of each bracket. Four barbs 2226 are provided on each of the upper and lower sides of the insertion bracket 2224, with the upper and lower barbs 2226 facing each other. Each insertion bracket 2224 has a cutting edge 2228, and a positioning section 2227 is formed between the cutting edge 2228 and the first row of barbs 2226. The outer contour of the insert body 2221 is circular, and preferably, the insert body 2221 has a cylindrical structure.

[0100] like Figure 2 As shown, another variation of the first embodiment of the splicing insert 222 is illustrated. The difference from the first embodiment is that the outer contour of the insert body 2221 is rhomboid or square, and a partition bracket 2222 is formed on the upper and lower sides of the insert body 2221. The extending direction of the partition bracket 2222 is perpendicular to the extending direction of the insertion bracket 2224. The insertion bracket 2224 can be integrally formed with the same material as the insert body 2221, or it can be made of a softer, more elastic material and embedded above and below the insert body 2221. For example, when the core board material after splicing is not tightly sealed by the partition bracket 2222, it can prevent the splicing surfaces 2202 of the splicing units 220 from rubbing against each other when the finished product is applied to the wood flooring, or in harsh environments, due to the shrinkage and expansion of the wood caused by the drying and wetting of the environment.

[0101] like Figure 3 and Figure 4The diagram shows a second embodiment of the panel insert 222A, which includes four insertion brackets 2224A. These four brackets 2224A are formed in pairs on the left and right sides of the insert body 2221A. The ends of the two inserted brackets 2224A on the same side, away from the insert body 2221A, are positioned far apart. These ends are blade edges 2228A. The outer contour of the insert body 2221A is I-shaped.

[0102] like Figure 5 and Figure 6 As shown, another variation of the second embodiment is illustrated. The difference between this variation and the second embodiment is that the insertion bracket 2224A is provided with spaced barbs 2226A. The barbs 2226A are provided on the upper and lower sides of the insertion bracket 2224A. Three barbs 2226A are provided on the upper and lower sides of the insertion bracket 2224A, and the barbs 2226A on the upper and lower sides are arranged opposite to each other. A positioning section 2227A is formed between the cutting edge 2228A of the insertion bracket 2224A and the first barb 2226A.

[0103] like Figure 7 and Figure 8 As shown, another variation of the second embodiment is shown, which differs from the second embodiment in that a partition bracket 2222A is formed on the upper and lower sides of the plug-in body 2221A, and the partition bracket 2222A is arranged perpendicular to the upper and lower surfaces of the plug-in body 2221A.

[0104] like Figure 9 As shown, another variation of the second embodiment is illustrated, which is similar to... Figure 5 The difference in the structure shown is that a partition bracket 2222A is formed on the upper and lower sides of the plug-in body 2221A, and the side of the plug-in body 2221A located between the partition bracket 2222A and the corresponding plug-in bracket 2224A is a slope.

[0105] like Figure 10 As shown, another variation of the second embodiment is illustrated, which is similar to... Figure 6 The difference in the structure shown is that a partition bracket 2222A is formed on the upper and lower sides of the plug-in body 2221A, and the partition bracket 2222A is set perpendicular to the upper and lower surfaces of the plug-in body 2221A.

[0106] like Figure 11 As shown, another variation of the second embodiment is illustrated, which is similar to... Figure 10The difference in the structure shown is that the partition bracket 2222A and the plug-in body 2221A are plugged in. The end of the partition bracket 2222A has a connector 2223A, the outer contour of which is circular. The connector 2223A and the partition bracket 2222A are inserted into the corresponding connecting groove on the side of the plug-in body 2221A as a component. Alternatively, the connector 2223A and the partition bracket 2222A can be integrally formed with the plug-in body 2221A using the soft and hard co-extrusion production technology of plastic extrusion equipment. Furthermore, the connector 2223A and the partition bracket 2222A are made of elastic material, which has a high degree of flexible deformation and spacing, and can prevent the splicing surfaces 2202 of the splicing core boards of multiple splicing units 220 from rubbing against each other during the use of the manufactured panel.

[0107] like Figure 12 and Figure 13 The diagram shows a third embodiment. In this embodiment, the panel insert 222B includes four insertion brackets 2224B. The distance from the end edge of the insertion bracket 2224B on the same side away from the insert body 2221B increases, meaning the opening angle of the insertion bracket 2224B on the same side increases. The insert body 2221B is X-shaped. In this embodiment, the panel insert 222B is non-deformable and can be inserted into the corresponding insertion tenon groove from the end face of the splicing unit. Barbs 2226B are spaced apart on the insertion brackets 2224B, and the ends of the insertion brackets 2224B are cutting edges 2228B. Separating brackets 2222B are formed on the upper and lower sides of the insert body 2221B.

[0108] like Figure 14 The diagram shows a fourth embodiment of the panel insert 222C. In this fourth embodiment, the panel insert 222C includes six insertion brackets 2224C. Three outwardly extending insertion brackets 2224C are provided on each side of the insert body 2221C, namely an upper insertion bracket, a middle insertion bracket, and a lower insertion bracket. The extension length of the middle insertion bracket is greater than that of the upper and lower insertion brackets. The end edges of the upper, middle, and lower insertion brackets are cutting edges 2228C. Each of the upper, middle, and lower insertion brackets has spaced barbs 2226C. A positioning section 2227C is formed between the cutting edge 2228C of the middle insertion bracket and the first barb 2226C. The end edges of the upper and middle insertion brackets that are away from the insert body 2221C are positioned away from each other.

[0109] like Figure 15As shown, another variation of the fourth embodiment is shown, which differs from the fourth embodiment in that a partition bracket 2222C is formed on the upper and lower sides of the plug-in body 2221C, and the partition bracket 2222C is arranged perpendicular to the upper and lower surfaces of the plug-in body 2221C.

[0110] like Figure 16 As shown, another variation of the fourth embodiment is illustrated, which is similar to... Figure 15 The difference is that the middle insertion bracket does not have barbs 2226C.

[0111] like Figure 17 As shown, another variation of the fourth embodiment is illustrated, which is similar to... Figure 16 The difference is that a barb 2226C is provided on the middle insertion bracket, and there is a certain gap between the barb 2226C and the cutting edge 2228C to form a positioning section 2227C.

[0112] like Figure 18 As shown, another variation of the fourth embodiment is illustrated, which is similar to... Figure 15 The difference in the structure shown is that the partition bracket 2222C and the plug-in body 2221C are plugged together. A connector 2223C is formed at the end of the partition bracket 2222C. The connector 2223C is larger than the rest of the partition bracket 2222C. The connector 2223C and the partition bracket 2222C can be integrally formed with the plug-in body 2221C using a soft-hard co-extrusion process in a plastic extrusion machine. Alternatively, they can be inserted separately into the corresponding connecting groove on the side of the plug-in body 2221C. The outer contour of the connector 2223C is triangular. Furthermore, the partition bracket 2222C is made of an elastic material, providing high flexibility and deformation spacing, which can prevent friction noise from the splicing surfaces 2202 of the multiple splicing unit components 220 during use.

[0113] like Figure 19 As shown, the present invention also provides a splicing core board 22, which is composed of the above-mentioned splicing plugs 222, 222A, 222B, 222C and multiple splicing unit components 220. The structure of the splicing core board 22 will be described below.

[0114] like Figure 19 and Figure 20As shown, the splicing core board 22 includes multiple splicing unit components 220 and multiple splicing inserts 222. Each splicing unit component 220 includes two opposing end faces 2201 and a splicing surface 2202. The splicing surface 2202 is provided with a tenon groove 2204. The distance between the two end faces 2201 of each splicing unit component 220 is approximately equal or equal. Multiple splicing unit components 220 are arranged in a plane with their splicing surfaces 2202 facing each other. The splicing inserts 222 are located between the splicing surfaces 2202 of two splicing unit components 220, and the insertion brackets 2224 on the splicing inserts 222 are inserted into the corresponding tenon grooves 2204. Thus, the splicing connection between the splicing unit components 220 is realized through the splicing inserts 222 to form the splicing core board 22.

[0115] A tenon groove 2204 is provided on the splicing surface 2201 of the splicing unit 220. Then, the splicing unit 220 is spliced ​​and connected by inserting the splicing bracket 2224 of the splicing plug 222 into the corresponding tenon groove 2204. Multiple splicing units 220 are spliced ​​together to form a splicing core board 22, so that the splicing between splicing units 220 can be done without the use of glue or adhesive, making the final product healthier and more environmentally friendly.

[0116] In one specific embodiment of the present invention, such as Figure 38 and Figure 39 As shown, the splicing unit 220F is a wooden strip, which is arranged in a row in a plane. Adjacent wooden strips are spliced ​​together by splicing plug 222C.

[0117] Preferably, two adjacent wooden strips are connected by two splicing plugs 222C, which are positioned near the end face 2201F of the wooden strip.

[0118] Furthermore, such as Figure 38 As shown, the length direction of the wooden strip is consistent with the length direction of the spliced ​​core board 22F.

[0119] In another preferred embodiment, such as Figure 52 As shown, the length direction of the wooden strip is consistent with the width direction of the spliced ​​core board 22.

[0120] Furthermore, such as Figure 38 and Figure 39 As shown, the outer contour of the end face 2201F of the wooden strip is square. The wooden strip has four sides. One side of the wooden strip located at the end is the splicing surface 2202F, while the two opposite sides of the wooden strip located in the middle are splicing surfaces 2202F. On the splicing surface 2202F, there is a tenon groove 2204F that matches the splicing bracket 2224C on the splicing board plug 222C.

[0121] like Figure 38 As shown, when making the splicing core board 22F, the wooden strips can be arranged in rows with the ends of each strip flush. Then, the end edge of the insertion bracket 2224C on one side of the splicing insert 222C is pre-inserted into the corresponding insertion tenon 2204F. The end edge of the insertion bracket 2224C on the other side of the splicing insert 222C is also pre-inserted into the corresponding insertion tenon 2204F, thus achieving the pre-interlocking connection of each wooden strip. Then, a side press is used to apply lateral pressure to the wooden strips on both ends (for example, multiple wooden strips can be placed on a flat workbench with one or more retractable, pressure-adjustable pressure strips or plates above the workbench, and the multiple wooden strips arranged in a row can be lightly pressed to position them and prevent them from warping or shifting upwards). The insertion bracket 2224C is gradually pushed into the insertion tenon 2204F for positioning, thus completing the tight splicing of the splicing core board 22F.

[0122] Furthermore, such as Figure 39 As shown, the wooden strip also includes a side surface 2203F connected to the end face 2201F and the splicing surface 2202F. Figure 39 The middle side 2203F consists of the upper and lower sides, and at least one groove 2207F is provided on the upper and lower sides of the wooden strip, combined with... Figures 41 to 45 As shown, the groove 2207F can be a straight groove or an oblique groove. A straight groove is one in which the depth direction of the groove is perpendicular to the corresponding side of the wooden strip. An oblique groove is one in which the depth direction of the groove intersects the corresponding side of the wooden strip to form a certain angle. This angle is not 90°. Preferably, the angle is between 20° and 85°, and more preferably 35°, 40°, 140°, 145°, etc. At least one groove 2207F can be provided on both the upper and lower sides of the wooden strip, or at least one groove 2207F can be provided on the upper or lower side of the wooden strip.

[0123] The purpose of the grooves is to break up the reinforcing fibers and relieve stress, thus physically eliminating internal stress in the wood. Wood naturally possesses irregular grain patterns and internal stress. Especially in large-format boards, stress easily concentrates and is transmitted along the grain under changes in environmental temperature and humidity or external forces, leading to overall warping and surface cracking. The grooves in this invention physically "break up the reinforcing fibers," severing the stress transmission path and dispersing the overall stress of the board into several smaller, dispersed stress areas. This further reduces the risk of stress concentration from the source. When adapted to small-sized core blocks, it enables more precise stress control. Straight grooves can precisely cut off axial stress transmission channels, constraining slight axial expansion and contraction caused by moisture penetration, while reserving directional space for the wood's expansion and contraction due to moisture, avoiding secondary internal stress caused by obstructed expansion and contraction. This is particularly suitable for fast-growing wood with relatively irregular grain patterns and many knots, offering convenient processing and highly targeted stress relief. Angled grooves maximize the cutting path and adapt to the irregular natural grain of wood. Regardless of the curvature or interlacing of the wood grain rings, the angled grooves can penetrate the grain with a longer sawing groove, achieving a more comprehensive and thorough "grain break." Compared to straight grooves, angled grooves are more adaptable to irregular grain patterns and can more effectively dissipate the irregular stress caused by messy grains. They can effectively deal with messy waste wood and scraps, ensuring that these materials maintain a lower stress state and better resistance to deformation after splicing.

[0124] In one specific embodiment of the present invention, such as Figure 25 As shown, the splicing unit 220B is a wooden block, which is arranged in rows in a plane, and there are at least two rows of wooden blocks; the wooden blocks in the same row are spliced ​​together by the splicing plug 222A.

[0125] like Figure 21 As shown, the splicing surfaces 2202A of wooden blocks (or splicing unit 220A) located in the same row are arranged facing each other or adjacent to each other (i.e., there can be no gap between the two splicing surfaces). The splicing connection between the wooden blocks is achieved using splicing inserts 222A placed between the two splicing surfaces. This eliminates the need for glue or adhesives when splicing wooden blocks in the same row, offering advantages such as environmental friendliness and cost reduction. The splicing length of the wooden blocks in the same row can be determined based on the required length of the splicing core board 22A, or based on the required width of the splicing core board 22A.

[0126] In a preferred embodiment, such as Figure 20 and Figure 26 As shown, adjacent rows of wooden blocks are also connected by splicing inserts 222, 222A. This eliminates the need for glue and adhesives when splicing rows of wooden blocks, offering advantages such as environmental friendliness and cost reduction. The number of rows of wooden blocks can be determined based on the required width or length of the splicing core panels 22, 22A.

[0127] In another preferred embodiment, adjacent rows of wooden blocks are connected by adhesive.

[0128] In one specific embodiment of the present invention, such as Figure 20 As shown, the outer surfaces of the two outermost rows of wooden blocks are covered with one or more outer side panels 224; or, the outermost periphery of the wooden blocks arranged in the plane is covered with one or more outer side panels 224.

[0129] The outer panel 224 can be glued to the corresponding row of wooden blocks. Specifically, the outer panel 224 can be joined to the corresponding wooden blocks by applying glue and then laminating it, for example, by using a cold press after applying glue. The outer panel 224 can be made of veneer, solid wood, or engineered wood. When there is more than one outer panel 224, the outer panels 224 are stacked one on top of the other.

[0130] By assembling an outer side panel 224 on the outside of the spliced ​​core board 22, the integrity of the wood blocks on the spliced ​​core board 22 can be improved, thereby enhancing the structural stability and aesthetics of the spliced ​​core board 22.

[0131] Alternatively, it can be obtained using the following method. Figure 20 The splicing core board 22 shown: combined Figures 54 to 56 As shown, wooden strips and splicing inserts 222 are used to splice and connect to form splicing units 22'. Multiple splicing units 22' are stacked vertically, and splicing inserts 222 are inserted into the tenon grooves 2204 provided on the upper and lower parts of the splicing unit 220 to form a brick-like stacked splicing connection to form a composite unit 20K. Outer panels 224' are provided on the bottom and top surfaces of the composite unit 20K. The outer panels 224' can be glued on one side, stacked, and cold-pressed to connect with the composite unit 20K. Then, the composite unit 20K is cut according to the required thickness of the splicing core board 22 along the length of the wooden strips to obtain multiple splicing core boards 22. The wood grain direction of the outer panels 224' is perpendicular to the wood grain direction of the splicing unit.

[0132] In one specific embodiment of the present invention, such as Figure 25 As shown, one or two spacer boards 226B are glued between adjacent rows of wooden blocks. The spacer board 226B can be laminated to the corresponding wooden blocks by applying glue to both sides and then stacking and laminating them. For example, after applying glue, a cold press can be used to stack and bond the composite units. The spacer board 226B can be made of veneer, solid wood, or engineered wood. Alternatively, it can be manufactured using the following methods. Figure 25 The splicing core board 22B shown: as Figures 54 to 56As shown, wooden strips and splicing inserts are spliced ​​together to form splicing unit 22'. One outer panel 224' is coated with glue on one side, and then a splicing unit 22' is placed on the glued surface of the outer panel 224'. Then, a spacer 226' is provided, and the spacer 226' is coated with glue on both sides. The spacer 226' is placed on the first splicing unit 22'. Then, the splicing units 22' and spacer 226' are stacked alternately. One-sided glued outer panel 224' is set on the top splicing unit 22'. Then, they are glued, stacked and cold-pressed to form composite unit 20K. Then, in the length direction of the wooden strips, the composite unit 20K is cut into pieces according to the required thickness of the splicing core board 22K to obtain multiple splicing core boards 22K. The wood grain direction of the outer panel 224' is perpendicular to the wood grain direction of the splicing unit.

[0133] Spacers 226B are placed between the brick-like arranged wooden blocks. These spacers 226B form a cross-grain constraint system, improving the overall integrity of the wooden blocks and thus enhancing the structural strength and stability of the spliced ​​core board 22B. Based on the orthogonal constraint principle of cross-laminated wood (i.e., orthogonal arrangement balances the difference in strength between transverse and longitudinal grains), the spliced ​​core board with spacers 226B can significantly improve structural stability and reduce the risk of board warping. Furthermore, when the spacer 226B is a wood panel, its grain direction is perpendicular to the grain direction of the outer perimeter of the two adjacent rows of wooden blocks. Figure 25 For example, the wood grain direction of the outer periphery (i.e., the four sides) of the wooden block is perpendicular to the end face, while the wood grain direction of the partition 226B is consistent with the length direction of the splicing core board 22B.

[0134] Preferably, both the partition 226B and the outer panel 224B can be selected from one or more of the following: rotary-cut veneer, solid wood board, organic board, inorganic board, metal board, and artificial board.

[0135] In one specific embodiment of the present invention, such as Figure 22 As shown, the splicing surface 2202A of the splicing unit 220A is provided with a receiving groove 2205A that communicates with the insertion tenon 2204A; the insertion tenon 2204A matches the insertion bracket 2224A; the receiving groove 2205A matches the part of the plug-in body 2221A near the insertion bracket 2224A to accommodate the corresponding part of the plug-in body 2221A.

[0136] In a preferred embodiment, such as Figure 19 As shown, the receiving groove 2205 is V-shaped or semi-circular. This receiving groove 2205 matches the structure of the first embodiment of the panel insert 222; the V-shaped receiving groove 2205 can accommodate… Figure 2 The panel insert 222 shown has a semi-circular receiving slot 2205 that can accommodate... Figure 1The panel plug-in 222 shown.

[0137] Furthermore, such as Figure 21 As shown, the connection between the groove wall of the receiving groove 2205A and the corresponding splicing surface 2202A is provided with a chamfered surface 2206A. The receiving groove 2205A includes an upper groove wall 2205A1 and a lower groove wall 2205A2. The connection between the upper groove wall 2205A1 and the corresponding splicing surface 2202A is provided with a chamfered surface 2206A, and the connection between the lower groove wall 2205A2 and the corresponding splicing surface 2202A is also provided with a chamfered surface 2206A. The chamfered surface 2206A facilitates the pre-insertion of the splicing insert 222A.

[0138] Furthermore, such as Figure 29 As shown, the receiving groove 2205C and the tenon groove 2204C penetrate the two end faces 2201C of the splicing unit 220C. The receiving groove 2205C and the tenon groove 2204C are provided on the splicing surface 2202C, and they penetrate the two end faces 2201C on the splicing surface 2202C. In this way, the receiving groove 2205C and the tenon groove 2204C can not only be used with the splicing insert 222A, but also have the function of stress relief and rib breaking of the groove 2207C.

[0139] Furthermore, such as Figure 19 As shown, a tenon 2204 is provided on the splicing surface of the splicing unit 22. The tenon 2204 is perpendicular to the splicing surface 2202 or forms a non-90° angle with the splicing surface 2202. That is, the tenon 2204 is set at an angle.

[0140] Furthermore, such as Figure 22 As shown, the splicing surface 2202A of the splicing unit 220A is provided with two interlocking tenons 2204A. The groove openings of the two interlocking tenons 2204A are connected, while the bottoms are far apart. The included angle formed between the two interlocking tenons 2204A is greater than or equal to the included angle formed between two paired interlocking supports 2224A located on the same side. Figure 22 In this design, the included angle formed between the two tenon grooves 2204A is greater than the included angle formed between the two paired tenon brackets 2224A on the same side. Therefore, when the tenon brackets 2224A are inserted into the tenon grooves 2204A for positioning (or fully inserted), the two tenon brackets 2224A deform and open, resulting in better anti-separation performance. Figure 30 As shown, the included angle formed between the two interlocking tenons 2204C is equal to the included angle formed between the two interlocking brackets 2224B located on the same side. At this time, the splicing insert 222B can be inserted into the corresponding interlocking tenon 2204C from the end face 2201C of the splicing unit 220C.

[0141] Furthermore, such as Figure 32As shown, the splicing surface of the splicing unit 220D is provided with three mortise and tenon grooves 2204D, namely the upper mortise and tenon groove 2204D1, the middle mortise and tenon groove 2204D2, and the lower mortise and tenon groove 2204D3; the middle mortise and tenon groove 2204D2 is perpendicular to the splicing surface; the bottom side of the grooves of the upper mortise and tenon groove 2204D1 and the lower mortise and tenon groove 2204D3 extends away from the middle mortise and tenon groove 2204D2, and the included angle formed between the upper mortise and tenon groove 2204D1 and the lower mortise and tenon groove 2204D3 is greater than or equal to the included angle formed between the upper mortise and tenon support and the lower mortise and tenon support on the same side. If the included angle between the upper mortise 2204D1 and the lower mortise 2204D3 is greater than the included angle between the upper and lower mortise supports on the same side, when the upper and lower mortise supports on the same side are inserted into the upper mortise 2204D1 and the lower mortise 2204D3 for positioning, the upper and lower mortise supports will deform and open, resulting in better anti-separation effect. If the included angle between the upper mortise 2204D1 and the lower mortise 2204D3 is equal to the included angle between the upper and lower mortise supports on the same side, then the splicing insert 222C can be inserted into the corresponding mortise 2204D from the end face 2201D of the splicing unit 220D.

[0142] The structure of the splicing core board of several structural forms of the present invention will be described below with reference to the accompanying drawings.

[0143] like Figure 19 As shown, the splicing unit 220 has four splicing surfaces 2202. Each splicing surface 2202 is provided with a tenon 2204 and a receiving groove 2205. The tenons 2204 on the left and right splicing surfaces 2202 are arranged horizontally (i.e., perpendicular to the surface of the corresponding splicing surface 2202), while the tenons 2204 on the upper and lower splicing surfaces 2202 are arranged at a certain angle to the corresponding splicing surface 2202, i.e., the tenons 2204 are inclined. When the splicing unit 220 and the splicing insert 222 are used to form the splicing core board 22, the splicing unit 220 can be spliced ​​and connected in both the left and right directions and the up and down directions, for example... Figure 20 The splicing core board 22 shown has four rows of stacked splicing unit components 220 in the middle. The splicing unit components 220 in two adjacent rows are spliced ​​together by splicing plugs 222. The splicing unit components 220 in the same row are also spliced ​​together by splicing plugs 222. The upper and lower sides of the splicing core board 22 are covered with adhesive outer panels 224.

[0144] When splicing and connecting the splicing unit 220 in the left and right direction, the end edges of the insertion brackets 2224 on both sides of the splicing plate plug 222 can be pre-inserted into the corresponding insertion tenon grooves 2204. After a row of splicing unit 220 is pre-assembled, a side press is used to apply a lateral thrust to the row of splicing unit 220 so that the insertion brackets 2224 are gradually inserted into the corresponding insertion tenon grooves 2204 for positioning.

[0145] When splicing and connecting the splicing unit 220 in the vertical direction, first insert the end edge of the insertion bracket 2224 on one side of the splicing plate insert 222 into the corresponding insertion tenon 2204. Then, connect another splicing unit 220 above the splicing unit 220, and gradually engage the insertion tenon 2204 of the upper splicing unit 220 with the corresponding insertion bracket 2224. For example, a pushing force can be applied to one side of the splicing plate insert 222 by a pressing device or a hammer to allow the insertion bracket 2224 on the other side to be embedded into the predetermined position in the corresponding insertion tenon 2204. Then, a pushing force can be applied to the upper splicing unit 220 by a pressing device or a hammer to allow the insertion tenon 2204 of the upper splicing unit 220 to engage with the corresponding insertion bracket 2224. Alternatively, the tenon grooves 2204 on the upper and lower splicing unit 220 can be aligned, and then the splicing plate insert 222 can be inserted into the tenon groove 2204 from one side of the end face.

[0146] exist Figure 20 In the embodiment of the splicing core board 22 shown, the splicing inserts 222 used between splicing units 220 in the same row are equipped with separator brackets 2222 (the structure of which is as follows). Figure 2 As shown, the dividing bracket 2222 separates the two splicing unit components 220 that are joined on the left and right sides, so that a gap is formed between the two splicing unit components 220. The splicing plate plugs 222 on the upper and lower sides of the splicing unit component 220 are arranged in intersecting directions.

[0147] like Figure 21As shown, a second embodiment of the splicing core board is illustrated. The splicing core board 22A includes multiple splicing unit components 220A connected sequentially in a horizontal direction. The splicing unit components 220A are spliced ​​using the structure of the second embodiment of the splicing plug 222A. During splicing, the end edge of the insertion bracket 2224A on one side of the splicing plug 222A is first inserted into the corresponding insertion tenon 2204A. Then, the insertion tenon 2204A on another splicing unit component 220A is aligned with the insertion bracket 2224A on the other side of the splicing plug 222A. The splicing unit component 220A is then pushed to the side so that the insertion tenon 2204A on the splicing unit component 220A can be fitted onto the corresponding insertion bracket 2224A. Then, the next splicing unit component 220A is assembled sequentially until the design length requirement of the splicing core board 22A is reached. For example, a pushing force can be applied to one side of the splicing insert 222A by a pressing device or a hammer, so that the insertion bracket 2224A on the other side can be embedded into the corresponding insertion tenon 2204A for positioning and splicing. Then, a pushing force can be applied to another splicing unit 220A by a pressing device or a hammer, so that the insertion tenon 2204A of the other splicing unit 220A can be fitted onto the corresponding insertion bracket 2224A.

[0148] like Figures 22 to 24 As shown, the process of inserting the second embodiment of the panel insert 222A (i.e., having four insertion brackets 2224A) into the insertion tenon 2204A will be described below. The panel insert 222A is elastic and can undergo a certain degree of deformation. The included angle formed between the two insertion tenons 2204A on one splicing surface 2202A of the splicing unit 220A is greater than the included angle between the two insertion brackets 2224A on one side of the panel insert 222A. During assembly, first as follows... Figure 22 As shown, the end edge of the insertion bracket 2224A on one side of the panel insert 222A is pre-inserted into the corresponding insertion tenon 2204A to complete the pre-assembly, and then as follows... Figure 23 As shown, a lateral thrust is applied to the other side of the panel insert 222A, for example, by using a pressing device or a hammer to apply the lateral thrust, combined with... Figure 23 and Figure 24As shown, the plug-in bracket 2224A gradually deforms and is embedded into the corresponding plug-in tenon groove 2204A for positioning, thereby forming a two-way limiting and locking connection structure of the dovetail tenon, completing the plug-in of the panel plug-in 222A and the splicing unit 220A. Alternatively, the end edge of the insertion bracket 2224A of the panel insert 222A can be pre-assembled into the insertion tenon groove of two splicing unit parts 220A. Or, multiple splicing unit parts 220A can be sequentially spliced ​​into a row of splicing inserts 222A. Then, a side press is used to apply a lateral thrust to the outside of the two splicing unit parts 220A to be spliced ​​or to the outside of the multiple splicing unit parts 220A arranged in a row. This allows the insertion bracket 2224A of the panel insert 222A between two adjacent splicing unit parts 220A to gradually deform along the groove shape of the insertion tenon groove 2204A until it is pushed into the insertion tenon groove 2204A for positioning, thereby forming a two-way limiting and locking connection structure of the dovetail tenon, and completing the insertion connection between the panel insert 222A and the splicing unit part 220A.

[0149] like Figure 25 As shown, a third embodiment of the splicing core board is illustrated. In this embodiment, multiple splicing unit components 220B are spliced ​​together to form a splicing unit 22'B through the structure of the splicing plug 222A in the second embodiment. The number of splicing unit components 220B is determined according to the required length of the splicing core board 22B. A spacer plate 226B is bonded between two adjacent splicing units 22'B. The seams of the splicing unit components 220B between two adjacent splicing units 22'B are staggered. An adhesive outer side plate 224B is covered on the upper side of the uppermost splicing unit 22'B, and an adhesive outer side plate 224B is covered on the lower side of the lowermost splicing unit 22'B.

[0150] like Figure 26 As shown, a variation of the third embodiment of the splicing core board is illustrated. In this embodiment, multiple splicing unit components 220B are spliced ​​together to form a splicing unit 22'B through the structure of the splicing plug 222A of the second embodiment. The plug-in bracket 2224A on the splicing plug 222A is provided with spaced barbs 2226A. The number of splicing unit components 220B is determined according to the required length of the splicing core board 22B. Each splicing unit 22'B is also spliced ​​together through the splicing plug 222A. The splicing seams of the splicing unit components 220B between each splicing unit 22'B are staggered. An outer panel 224B is glued to the upper side of the uppermost splicing unit 22'B and an outer panel 224B is glued to the lower side of the lowermost splicing unit 22'B.

[0151] like Figure 27As shown, another variation of the third embodiment of the splicing core board is illustrated. In this example, multiple splicing unit pieces 220B are spliced ​​together to form a splicing unit 22'B through the structure of the splicing plug 222A according to the second embodiment. A partition bracket 2222A is formed on the plug body 2221A of the splicing plug 222A, which separates two adjacent splicing unit pieces 220B, forming a gap between the two adjacent splicing unit pieces 220B. The number of splicing unit pieces 220B is determined according to the required length of the splicing core board 22B. A spacer plate 226B is bonded between two adjacent splicing unit pieces 22'B. The seams of the splicing unit pieces 220B between two adjacent splicing unit pieces 22'B are staggered. An adhesive outer side plate 224B is covered on the upper side of the uppermost splicing unit 22'B, and an adhesive outer side plate 224B is covered on the lower side of the lowermost splicing unit 22'B.

[0152] like Figure 28 As shown, another variation of the third embodiment of the splicing core board is illustrated, which is similar to... Figure 27 The structural difference in the embodiment shown is that the insertion bracket 2224A of the panel insert 222A is provided with spaced barbs 2226A, the spacer plate 226B between the panel units 22'B is eliminated, the adjacent panel units 22'B are spliced ​​and connected by the panel insert 222A, and the splicing seams of the splicing unit 220B between each panel unit 22'B are staggered.

[0153] like Figure 30 As shown, an embodiment of splicing unit 220C is achieved by embedding splicing plate plug 222B from end face 2201C of splicing unit 220C. In this embodiment, the splicing surfaces 2202C of splicing unit 220C can be set opposite each other, and then the splicing plate plug 222B is embedded into the tenon groove 2204C from one side of end face 2201C, thereby completing the splicing connection of splicing unit 220C.

[0154] like Figure 31As shown, a fourth embodiment of the splicing core board is illustrated. The splicing core board 22D includes multiple splicing unit components 220D connected sequentially in a horizontal direction. The splicing unit components 220D are spliced ​​using the structure of the third embodiment of the splicing plug 222C. During splicing, the end edge of the insertion bracket 2224C on one side of the splicing plug 222C is first inserted into the corresponding insertion tenon 2204D. Then, the insertion tenon 2204D on another splicing unit component 220D is aligned with the end edge of the insertion bracket 2224C on the other side of the splicing plug 222C. The splicing unit component 220D is then pushed to the side so that the insertion tenon 2204D on the splicing unit component 220D can be fitted onto the corresponding insertion bracket 2224C. The next splicing unit component 220D is then assembled sequentially until the design length requirement of the splicing core board 22D is reached. For example, a pushing force can be applied to one side of the splicing insert 222C by a pressing device or a hammer, so that the insertion bracket 2224C on the other side can be embedded into the corresponding insertion tenon 2204D. Then, a pushing force can be applied to another splicing unit 220D by a pressing device or a hammer, so that the insertion tenon 2204D of the other splicing unit 220D can be fitted onto the corresponding insertion bracket 2224C.

[0155] like Figures 32 to 34 As shown, the process of inserting the third embodiment of the panel insert 222C (i.e., having six insertion brackets 2224C) into the insertion tenon 2204D will be described below. The panel insert 222C is elastic and can undergo a certain degree of deformation. The angle formed between the upper insertion tenon 2204D1 and the lower insertion tenon 2204D3 on one splicing surface 2202D of the splicing unit 220D is greater than the angle between the upper insertion bracket and the lower insertion bracket on one side of the panel insert 222C. During assembly, first as follows... Figure 32 As shown, the end edges of the two side connector brackets of the panel insert 222C are pre-inserted into the corresponding tenon grooves 2204D to complete the pre-assembly. The cutting edge and positioning section of the middle connector bracket are inserted into the middle tenon groove 2204D2, which serves as the pre-positioning of the connector. The cutting edges of the upper and lower connector brackets can be located at the openings of the upper tenon groove 2204D1 and the lower tenon groove 2204D3, or at the corresponding chamfered surface 2206D. Then, as... Figure 33 As shown, a lateral thrust is applied to the two splicing unit parts 220D to bring them closer together. For example, a lateral press is used to apply a lateral thrust to the two splicing unit parts 220D. Under the action of the lateral thrust, the upper and lower insertion brackets can gradually deform along the grooves of the corresponding upper insertion tenon 2204D1 and lower insertion tenon 2204D3 until they are pushed into the upper insertion tenon 2204D1 and lower insertion tenon 2204D3 for positioning. The middle insertion bracket is gradually inserted into the middle insertion tenon for positioning, combined with... Figure 34 As shown, this completes the insertion connection between the panel plug-in 222C and the splicing unit 220D.

[0156] like Figure 35 As shown, during assembly, the end edge of the insertion bracket 2224C on one side of the panel insert 222C can be pre-inserted into the insertion tenon 2204D of the corresponding splicing unit 220D to complete the pre-assembly, and then the splicing unit 220D on the other side can be assembled. Alternatively, the splicing surfaces of the two splicing unit 220Ds can be arranged opposite each other, and then the panel insert 222C (third embodiment) can be embedded from one side of the end face into the corresponding insertion tenon 2204D to complete the splicing connection.

[0157] like Figure 36 As shown, a fifth embodiment of the splicing core board is illustrated. The splicing core board 22E adopts the structure of the third embodiment of the splicing plug 222C to achieve splicing. Multiple splicing unit components 220E are spliced ​​and connected through the splicing plug 222C to form splicing unit 22'E. The splicing plug 222C has six insertion brackets 2224C, and the insertion brackets 2224C are provided with spaced barbs. Adjacent splicing units 22'E are spliced ​​and connected through the splicing plug 222C, and the splicing seams of the splicing unit components 220E between each splicing unit 22'E are staggered. An adhesive outer side plate 224E is covered on the upper side of the uppermost splicing unit 22'E, and an adhesive outer side plate 224E is covered on the lower side of the lowermost splicing unit 22'E.

[0158] like Figure 37 As shown, a variation of the fifth embodiment of the splicing core board is illustrated, which is similar to... Figure 36 The structural difference in the embodiment shown is that a partition bracket 2222C is formed on the panel insert 222C. The partition bracket 2222C is used to form a gap between two adjacent splicing unit parts 220D on the panel unit 22'E, and a gap is also formed between two adjacent panel units 22'E.

[0159] The present invention provides a composite board with a spliced ​​core board, the structure of which is described below.

[0160] like Figure 46 As shown, the composite board 20 of the present invention includes a splicing core board 22H and a balancing board 24 covered and bonded to the surface of the splicing core board 22H. Alternatively, as... Figure 51 As shown, the composite board 20 of the present invention includes a spliced ​​core board 22J and a decorative panel 26 covered and adhered to the surface of the spliced ​​core board 22J.

[0161] In a preferred embodiment, the balance plate 24 is covered and bonded to the upper and lower surfaces of the splicing core plate 22H, and the wood grain direction of the upper and lower surfaces is perpendicular to the end face of the splicing unit 220.

[0162] In another preferred embodiment, such as Figure 37 As shown, the balance plate 24 is covered and bonded to the upper and lower surfaces of the splicing core plate 22E, which are formed by the end faces of the splicing unit 220E. The balance plate 24 is also covered and bonded to the splicing core plate 22E and the outer side plates 224E on both sides.

[0163] Furthermore, when the surface of the splicing core board 22H is covered with and bonded to the balance board 24, the composite board 20 also includes a decorative panel 26 covered with and bonded to the outer surface of the balance board 24.

[0164] Furthermore, the composite board 20 also includes a frame strip bonded to the perimeter of the spliced ​​core board 22 or a frame strip bonded to opposite sides of the spliced ​​core board 22. The frame strip is preferably made of solid wood. Tenons and mortises can be provided on opposite sides of the frame strip, which facilitates the splicing of the composite board using the tenon and mortise joints found in flooring and wall panels.

[0165] Furthermore, the balance board 24 is made of veneer, solid wood, artificial board, metal board, inorganic board, or organic board. When the balance board 24 is made of solid wood, the wood grain direction of the balance board 24 is consistent with the length direction of the spliced ​​core board 22J. When the balance board 24 is made of veneer, the wood grain direction of the balance board 24 is consistent with the width direction of the spliced ​​core board 22I.

[0166] The composite board 20 of the present invention can be used as door panels, wall panels, cabinet door panels, partition walls, flooring (including geothermal heating flooring and moisture-resistant flooring), decorative panels, dining table panels, office table panels, desktop panels, tea tables, and other similar products.

[0167] Balance board 24 can be made of veneer, solid wood, artificial materials, polymers, SPC, metals, inorganic materials, organic materials, ceramic tiles, sintered stone materials, etc.

[0168] Decorative panel 26 can be made of solid wood boards (or solid wood veneer), artificial leather, 3D texture pattern printing, cosmetic decorative paper, artificial board, polymer materials, metal plate, organic board, inorganic board, etc.

[0169] like Figure 46 and Figure 47The image shows a first embodiment of the composite board. In this first embodiment, the spliced ​​core board 22H is composed of multiple wooden strips and splicing inserts 222C. The length direction of the wooden strips is approximately the same as the length direction of the spliced ​​core board 22H. A balance board 24 and a decorative panel 26 are glued to the upper and lower surfaces of the spliced ​​core board 22H. The balance board 24 is a wood board, and the decorative panel 26 can also be a wood board. The wood grain direction of the balance board 24 is perpendicular to the wood grain direction of the decorative panel 26, and the wood grain direction of the balance board 24 is also perpendicular to the wood grain direction of the upper and lower surfaces of the wooden strips.

[0170] like Figure 48 and Figure 49 As shown, a second embodiment of the composite panel is illustrated, which is consistent with... Figure 46 The difference in the illustrated embodiment lies in the structure of the panel insert 222A. The panel insert 222A includes four interlocking brackets 2224A, and grooves 2207I are provided on the upper and lower sides of the central wooden strip. These grooves 2207I are oblique grooves. The balance plate 24A and decorative panel 26A provided on the upper and lower surfaces of the splicing core board 22I are made of engineered wood.

[0171] like Figure 50 The diagram shows a third embodiment of the composite board. In this third embodiment, the spliced ​​core board 22I is composed of multiple wooden strips and splicing inserts 222C. The length direction of the wooden strips is consistent with the length direction of the spliced ​​core board 22I. Grooves 2207I, which are oblique grooves, are provided on the upper and lower sides of the middle wooden strips. A balancing board 24B, which is a veneer, is adhered to the upper and lower surfaces of the spliced ​​core board 22I. The wood grain direction of the balancing board 24B is perpendicular to the wood grain direction of the upper and lower surfaces of the spliced ​​core board 22I.

[0172] like Figures 51 to 53 The image shows a fourth embodiment of the composite board. In this fourth embodiment, the spliced ​​core board 22J is composed of multiple wooden strips and splicing inserts 222C. The length direction of the wooden strips is consistent with the width direction of the spliced ​​core board 22J. Grooves 2207J, which are oblique grooves, are provided on the upper and lower sides of the middle wooden strips. A decorative panel 26, which is a thick-skinned wood board, is adhered to the upper and lower surfaces of the spliced ​​core board 22J. The wood grain direction of the decorative panel 26 is perpendicular to the wood grain direction of the upper and lower surfaces of the spliced ​​core board 22J.

[0173] This invention also provides a method for manufacturing a splicing core board, which will be described below.

[0174] The manufacturing method of this spliced ​​core board includes the following steps: like Figure 38As shown, multiple wooden strips are provided. Each wooden strip includes two opposing end faces 2201F and a splicing face 2202F. The splicing face 2202F of the wooden strip is provided with a tenon groove 2204F. The distance between the two end faces 2201F of each wooden strip is approximately equal or equal. Multiple wooden strips are arranged in a row on the plane with their splicing surfaces 2202F facing each other. Provide the above-mentioned multiple splicing plugs 222C, place the splicing plugs 222C between the splicing surfaces 2202F of two adjacent wooden strips, and pre-insert the end edge of the insertion bracket 2224C of the splicing plugs 222C into the corresponding insertion tenon 2204F; Combination Figure 39 As shown, a lateral thrust is applied to both sides of multiple wooden strips arranged in a row to allow the insertion bracket 2224C of the splicing insert 222C to be inserted and positioned into the corresponding insertion tenon 2204F, thereby producing the spliced ​​core board 22F. For example, a side press can be used to apply lateral pressure to both sides of the multiple wooden strips arranged in a row.

[0175] The present invention provides a method for manufacturing a splicing core board, the method comprising the following steps: Multiple wooden strips are provided, each strip having two opposite end faces and a splicing surface, and the splicing surface of the strips is provided with a tenon groove, and the distance between the two end faces of each strip is approximately equal or equal; Multiple wooden strips are arranged in a row with their splicing surfaces facing each other on a plane; Combination Figure 30 As shown, multiple splicing inserts 222B are provided. The splicing inserts 222B are inserted from the end faces 2201C of two adjacent wooden strips into the corresponding tenon grooves 2204C to produce a spliced ​​core board. For example, the splicing inserts 222B can be pressed into the corresponding tenon grooves 2204C using a pressing device or a hammer.

[0176] The present invention provides a method for manufacturing a splicing core board, the method comprising the following steps: Multiple wooden strips are provided, each strip having two opposite end faces and a splicing surface, and the splicing surface of the strips is provided with a tenon groove, and the distance between the two end faces of each strip is approximately equal or equal; like Figure 54 As shown, multiple panel inserts are provided above, and multiple wooden strips are spliced ​​and connected to form a panel unit 22' of the required size using the panel inserts; Combination Figure 55 As shown, multiple panel units 22' are stacked and connected to form a composite unit 20K of the required size; Combination Figure 56As shown, the composite unit 20K is cut into pieces along the length of the wood strip according to the required thickness of the splicing core board 22K, thereby obtaining multiple splicing core boards 22K.

[0177] In one specific embodiment of the present invention, when multiple panel units 22' are stacked and connected, the multiple panel units 22' are spliced ​​and connected into a composite unit body 22K of the required size by panel plugs 222, 222A, 222B, and 222C.

[0178] In one specific embodiment of the present invention, one or two spacer plates 226' are glued between the stacked and connected multiple panel units 22'.

[0179] In one specific embodiment of the present invention, when multiple panel units 22' are stacked and connected, one or more outer panels 224' are glued to the uppermost panel unit 22', and one or more outer panels 224' are glued to the bottommost panel unit 22'.

[0180] In one specific embodiment of the present invention, when multiple panel units 22' are stacked and connected, one or two spacer plates 226' are glued between two adjacent panel units 22'.

[0181] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A panel insert (222), characterized in that, include: A columnar plug-in body (2221); At least two sheet-like plug-in brackets (2224) are formed on the outside of the plug-in body (2221) and extend outward, the at least two plug-in brackets (2224) being formed on opposite sides of the plug-in body (2221).

2. The panel insert (222) as described in claim 1, characterized in that, There are two plug-in brackets (2224); The plug body (2221) has an abutment edge (2225) at the position near the location where the plug bracket (2224) is formed.

3. The panel insert (222) as described in claim 2, characterized in that, The abutting edge (2225) is a sloping edge, a straight edge, or an arc edge.

4. The panel inserts (222A, 222B) as described in claim 1, characterized in that, There are four plug-in brackets (2224A, 2224B), and the four plug-in brackets (2224A, 2224B) are formed in pairs on opposite sides of the plug-in body (2221A, 2221B). The two plug brackets (2224A, 2224B) located on the same side are arranged with their ends away from the plug body (2221A, 2224B) in a state of being far apart.

5. The panel insert (222C) as described in claim 1, characterized in that, The plug-in body (2221C) has three outwardly extending plug-in brackets (2224C) formed on opposite sides, namely the upper plug-in bracket, the middle plug-in bracket and the lower plug-in bracket. The outward extension length of the middle insertion bracket is greater than the outward extension lengths of the upper insertion bracket and the lower insertion bracket.

6. The panel insert (222C) as described in claim 5, characterized in that, The upper insertion bracket and the lower insertion bracket are respectively provided with barbs (2226C).

7. The panel insert (222C) as described in claim 6, characterized in that, The upper insertion bracket and the lower insertion bracket are each provided with one or more barbs (2226C) spaced apart.

8. The panel insert (222C) as described in claim 6 or 7, characterized in that, The barbs (2226C) are arranged in pairs at corresponding positions on both sides of the upper insertion bracket and the lower insertion bracket.

9. The panel insert (222C) as described in claim 5 or 6, characterized in that, The central insertion bracket is provided with barbs (2226C).

10. The panel insert (222C) as described in claim 9, characterized in that, The barbs (2226C) on the middle insertion bracket are positioned away from the end edge.

11. The panel insert (222, 222A) as described in any one of claims 1 to 4, characterized in that, At least some of the plug-in brackets (2224, 2224A) have one or more spaced barbs (2226, 2226A).

12. The panel insert (222, 222A, 222C) as described in any one of claims 1 to 6, characterized in that, A positioning segment (2227, 2227A, 2224C) is formed on one end edge of the plug-in bracket (2224, 2224A, 2224C) away from the plug-in body (2221, 2221A, 2221C).

13. The panel insert (222, 222A, 222B, 222C) as described in any one of claims 1 to 6, characterized in that, The at least two plug-in brackets (2224, 2224A, 2224B, 2224C) are formed on opposite sides of the plug-in body (2221, 2221A, 2221B, 2221C); The plug-in body (2221, 2221A, 2221B, 2221C) does not have the plug-in bracket (2224, 2224A, 2224B, 2224C) formed on opposite sides, but has outwardly extending partition brackets (2222, 2222A, 2222B, 2222C).

14. The panel inserts (222, 222A, 222B, 222C) as described in claim 13, characterized in that, The partition brackets (2222, 2222A, 2222B, 2222C) are made of elastic material; The partition brackets (2222, 2222A, 2222B, 2222C) are integrally formed or plugged into the plug body (2221, 2221A, 2221B, 2221C).

15. The panel insert (222, 222A, 222C) as described in any one of claims 1 to 6, characterized in that, The plug-in body (2221, 2221A, 2221C) and the plug-in bracket (2224, 2224A, 2224C) are made of one of the following materials: polymer, aluminum, zinc and alloy metal.

16. The panel insert (222, 222A, 222C) as described in any one of claims 1 to 6, characterized in that, The edge of the plug-in bracket (2224, 2224A, 2224C) away from the plug-in body (2221, 2221A, 2221C) is a cutting edge (2228, 2228A, 2228C).

17. A splicing core board (22), characterized in that, include: Multiple splicing unit components (220) are provided, each splicing unit component (220) including two opposing end faces (2201) and a splicing surface (2202). The splicing surface (2202) is provided with a tenon groove (2204). The distance between the two end faces (2201) of each splicing unit component (220) is approximately equal or equal. The multiple splicing unit components (220) are arranged in a plane with their splicing surfaces (2202) facing each other. As described in any one of claims 1 to 16, the panel inserts (222, 222A, 222C) are disposed between the splicing surfaces (2202) of two splicing unit parts (220) that are spliced ​​together, and the insertion brackets (2224, 2224A, 2224C) on the panel inserts (222, 222A, 222C) are inserted into the corresponding insertion tenons (2204), thereby realizing the splicing connection between the splicing unit parts (220) through the panel inserts (222, 222A, 222C) to form the splicing core board (22).

18. The splicing core board (22) as described in claim 17, characterized in that, The splicing unit (220) is a wooden strip, which is arranged in a row in a plane. Adjacent wooden strips are spliced ​​together by the splicing plugs (222, 222A, 222C) to form the splicing core board (22).

19. The splicing core board (22) as described in claim 17, characterized in that, The splicing unit (220) is a wooden block, which is arranged in rows in the plane, and the wooden blocks are arranged in at least two rows; The wooden blocks located in the same row are spliced ​​together using the splicing plugs (222, 222A, 222C).

20. The splicing core board (22) as described in claim 19, characterized in that, Adjacent rows of wooden blocks are also connected by splicing plugs (222, 222A, 222C).

21. The splicing core board (22) as described in claim 19, characterized in that, The outer sides of the two outermost rows of wooden blocks are covered with one or more outer side panels (224). Alternatively, the outermost periphery of the wooden blocks arranged in the plane is covered with one or more outer side panels (224).

22. The splicing core board (22B) as described in claim 19, characterized in that, One or two spacers (226B) are glued between adjacent rows of wooden blocks.

23. The splicing core board (22) as described in any one of claims 17 to 22, characterized in that, The splicing surface (2202) of the splicing unit (220) is provided with a receiving groove (2205) that communicates with the insertion tenon (2204). The dimensions of the tenon (2204) match the dimensions of the connector bracket (2224, 2224A, 2224C); The receiving slot (2205) matches the portion of the plug body (2221, 2221A, 2221C) near the plug bracket (2224, 2224A, 2224C) to receive the corresponding portion of the plug body (2221, 2221A, 2221C).

24. The splicing core board (22) as described in claim 23, characterized in that, The receiving groove (2205) is V-shaped, rectangular or semi-circular.

25. The splicing core board (22) as described in claim 23, characterized in that, The groove wall of the receiving groove (2205) is provided with a chamfered surface (2206) at the connection between the groove wall and the corresponding splicing surface (2202).

26. The splicing core board (22) as described in claim 23, characterized in that, The receiving groove (2205) and the interlocking tenon groove (2204) pass through the two end faces (2201) of the splicing unit (220).

27. The splicing core board (22) as described in claim 23, characterized in that, The splicing unit (220) has a tenon groove (2204) on its splicing surface (2202), and the tenon groove (2204) is perpendicular to the splicing surface (2202) or forms a non-90° angle with the splicing surface (2202).

28. The splicing core board (22A) as described in claim 23, characterized in that, The splicing surface (2202A) of the splicing unit (220A) is provided with two interlocking tenons (2204A). The groove openings of the two interlocking tenons (2204A) are connected, while the bottom sides are far apart. The included angle formed between the two interlocking tenons (2204A) is greater than or equal to the included angle formed between two interlocking brackets (2224A) located on the same side.

29. The splicing core board (22D) as described in claim 23, characterized in that, The splicing surface (2202D) of the splicing unit (220D) is provided with three mortise and tenon grooves (2204D), namely the upper mortise and tenon groove (2204D1), the middle mortise and tenon groove (2204D2), and the lower mortise and tenon groove (2204D3). The central tenon groove (2204D2) is perpendicular to the splicing surface (2202D); The bottom sides of the upper tenon groove (2204D1) and the lower tenon groove (2204D3) extend away from the middle tenon groove (2204D2), and the included angle formed between the upper tenon groove (2204D1) and the lower tenon groove (2204D3) is greater than or equal to the included angle formed between the upper and lower tenon supports on the same side.

30. The splicing core board (22G) as described in claim 17, characterized in that, The splicing unit (220G) also includes a side surface (2203G) connected to the end face (2201G) and the splicing surface (2202G). At least one groove (2207G) is provided on at least one side (2203G).

31. A composite board (20) with a spliced ​​core board (22), characterized in that, include: The splicing core board (22) is as described in any one of claims 17 to 30; A balance plate (24) or a decorative panel (26) is applied to the surface of the splicing core board (22).

32. The composite board (20) with spliced ​​core board (22) as described in claim 31, characterized in that, When the surface of the splicing core board (22) is covered with and bonded with a balance board (24), the composite board (20) also includes a decorative panel (26) covered with and bonded to the outer surface of the balance board (24).

33. The composite board (20) with spliced ​​core board (22) as described in claim 31, characterized in that, It also includes a frame strip that is attached to the perimeter of the splicing core board (22) or a frame strip that is attached to the opposite sides of the splicing core board (22).

34. The composite board (20) with spliced ​​core board (22) as described in claim 31, characterized in that, When a balance board (24) is bonded to the surface of the splicing core board (22), the balance board (24) is selected from veneer, solid wood board, artificial board, metal board, inorganic board or organic board. When the balance board (24) is made of veneer, the wood grain direction of the balance board (24) is consistent with the width direction of the spliced ​​core board (22); When the surface of the splicing core board (22) is covered with a decorative panel (26), the decorative panel (26) is made of solid wood board, artificial leather, 3D texture pattern printing, cosmetic decorative paper, artificial board, polymer material, metal plate, organic board or inorganic board. When the decorative panel (26) is made of solid wood, the wood grain direction of the decorative panel (26) is consistent with the length direction of the spliced ​​core board (22J).

35. A method for manufacturing a spliced ​​core board (22), characterized in that, Includes the following steps: Multiple wooden strips are provided, each wooden strip having two opposite end faces (2201) and a splicing surface (2202), and the splicing surface (2202) of the wooden strip is provided with a tenon groove (2204), and the distance between the two end faces (2201) of each wooden strip is approximately equal or equal; Multiple wooden strips are arranged in a row with their splicing surfaces (2202) facing each other in the plane; Provide a plurality of panel inserts (222, 222A, 222C) as described in any one of claims 1 to 16, wherein the panel inserts (222, 222A, 222C) are disposed between the splicing surfaces (2202) of two adjacent wooden strips, and the positioning segments (2227, 2227A, 2227C) of the insertion brackets (2224, 2224A, 2224C) of the panel inserts (222, 222A, 222C) are pre-inserted into the corresponding insertion tenon grooves (2204); Lateral thrust is applied to both sides of multiple wooden strips arranged in a row so that the insert brackets (2224, 2224A, 2224C) of the splicing inserts (222, 222A, 222C) are inserted into the corresponding tenon grooves (2204) for positioning, thereby producing the splicing core board (22).

36. A method for manufacturing a spliced ​​core board (22), characterized in that, Includes the following steps: Multiple wooden strips are provided, each wooden strip having two opposite end faces (2201) and a splicing surface (2202), and the splicing surface (2202) of the wooden strip is provided with a tenon groove (2204), and the distance between the two end faces (2201) of each wooden strip is approximately equal or equal; Multiple wooden strips are arranged in a row with their splicing surfaces (2202) facing each other in a plane; Provide a plurality of splicing inserts (222, 222A, 222C) as described in any one of claims 1 to 16, and insert the splicing inserts (222, 222A, 222C) from the end faces (2201) of two adjacent wooden strips into the corresponding tenon grooves (2204) to obtain a spliced ​​core board (20).

37. A method for manufacturing a splicing core board (22K), characterized in that, Includes the following steps: Multiple wooden strips are provided, each wooden strip having two opposite end faces (2201) and a splicing surface (2202), and the splicing surface (2202) of the wooden strip is provided with a tenon groove (2204), and the distance between the two end faces (2201) of each wooden strip is approximately equal or equal; Provide a plurality of panel inserts (222, 222A, 222C) as described in any one of claims 1 to 16, and use the panel inserts (222, 222A, 222C) to splice and connect a plurality of wooden strips into a panel unit (22') of the required size; Multiple panel units (22') are stacked and laminated together to form a composite unit (20K) of the required size; Along the length of the wooden strip, the composite unit (20K) is cut according to the required thickness of the splicing core board (22K) to obtain multiple splicing core boards (22K).

38. The method for manufacturing the spliced ​​core board (22K) as described in claim 37, characterized in that, When multiple panel units (22') are stacked and connected, the multiple panel units (22') are spliced ​​and connected by the panel plugs (222, 222A, 222C) and then stacked and laminated to form a composite unit (20K) of the required size.

39. The method for manufacturing the spliced ​​core board (22K) as described in claim 37, characterized in that, When multiple panel units (22') are stacked and laminated together, one or more outer panels (224') are glued to the top panel unit (22') and one or more outer panels (224') are glued to the bottom panel unit.

40. The method for manufacturing the spliced ​​core board (22K) as described in any one of claims 37 to 39, characterized in that, When stacking and laminating multiple panel units (22'), one or two spacer plates (226') are glued between two adjacent panel units (22').

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