Mortise and tenon toothed ecological board

Abstract

The utility model relates to a tenon-and-mortise toothed ecological board, which comprises a son wood batten and a mother wood batten, the ecological board is spliced in a tenon-and-mortise mode in the transverse direction, and the ecological board is spliced in a toothed mode in the longitudinal direction. The tenon-and-mortise toothed ecological board has the advantages that the whole ecological board is spliced in a tenon-and-mortise mode in the transverse direction, the tenon-and-mortise structures are mutually buckled, the stress point of the board is transferred to a physical occlusal surface from a gluing surface in the prior art, the bending resistance, pressing resistance and shearing resistance are enhanced, the structure is firm, deformation is not prone to occurring, and the service life of the board is prolonged. Meanwhile, due to the fact that buckling is achieved in a mortise and tenon mode, fixing can be achieved only through a small amount of glue, the problem that the glue is aged and fails is solved, and the environment-friendly performance is good.

Description

Technical Field

[0001] This utility model relates to the field of board technology, specifically, to a mortise and tenon joint ecological board for forming ecological boards. Background Technology

[0002] Ecological board, or melamine board, is a new type of interior decoration material that has become a major material in interior decoration. Ecological board is made by soaking paper with different colors or textures in resin, then drying it to a certain degree of curing, and then laying it on the surface of plywood, blockboard, etc., and hot pressing it to form a decorative board.

[0003] The existing eco-friendly boards have the following defects and shortcomings:

[0004] Firstly, in the production process of existing eco-friendly boards, multiple spliced ​​boards are usually glued together to form a flat eco-friendly board. However, since the entire eco-friendly board is fixed with glue, the spliced ​​boards are only fixed with glue at the joints and do not have the mechanical properties of mutual locking and interlocking. Over time, the entire eco-friendly board is prone to falling off and deforming at the glue joints, resulting in low strength of the eco-friendly board.

[0005] Secondly, existing eco-friendly boards typically rely on large amounts of glue for fixing to increase strength. This glue is rich in formaldehyde and other chemicals, resulting in poor environmental performance.

[0006] In addition, existing eco-friendly boards are prone to expansion and deformation when exposed to moisture, especially when used to manufacture large-span eco-friendly boards, where changes in humidity can easily lead to cracking at the joints and overall warping.

[0007] Furthermore, existing eco-friendly boards have insufficient internal physical properties, making them prone to breakage under lateral stress, which limits their application in load-bearing scenarios.

[0008] Chinese patent document CN202020675754.8, entitled "A Formaldehyde-Free Ecological Board," discloses a formaldehyde-free ecological board comprising a board body with an inner cavity containing a filling layer. The board body includes a corrosion-resistant layer, a high-strength layer, a thermal insulation layer, and a sound insulation layer. The corrosion-resistant layer is located on the outer surface of the high-strength layer, the thermal insulation layer, and the sound insulation layer. A coating layer is applied to the outer surface of the board body, comprising a wear-resistant coating, a fire-retardant coating, and a corrosion-resistant coating. The wear-resistant coating is applied to the outer surface of the fire-retardant coating, the fire-retardant coating to the outer surface of the corrosion-resistant coating, and the corrosion-resistant coating to the outer surface of the corrosion-resistant layer. The filling layer is an activated carbon filler. This invention solves the problem of current ecological boards having limited functionality and being inconvenient for users by utilizing the combined effects of the corrosion-resistant layer, high-strength layer, thermal insulation layer, sound insulation layer, filling layer, wear-resistant coating, fire-retardant coating, and corrosion-resistant coating. However, a technical solution with a robust structure and good environmental performance has not been disclosed.

[0009] In conclusion, there is an urgent need for a mortise and tenon ecological board with a robust structure and good environmental performance, but no reports have been found on such an ecological board yet. Summary of the Invention

[0010] The purpose of this utility model is to provide a mortise and tenon ecological board with a robust structure and good environmental performance.

[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0012] A mortise and tenon joint ecological board, the ecological board comprising a parent wood strip and a mother wood strip, wherein the transverse splicing of the ecological board is formed by mortise and tenon joint of the parent wood strip and the longitudinal splicing of the ecological board is formed by tooth joint of the parent wood strip and the mother wood strip.

[0013] The upper transverse sides of both the sub-wooden strip and the mother-wooden strip are provided with mortise and tenon protrusions, and there are two mortise and tenon protrusions in total, forming a fitting groove between the two mortise and tenon protrusions; the lower transverse sides of both the sub-wooden strip and the mother-wooden strip are provided with mortise and tenon grooves; there are two mortise and tenon grooves in total, and the two mortise and tenon grooves are distributed in parallel; and a fitting protrusion is provided between the two mortise and tenon grooves.

[0014] When the ecological board is spliced ​​horizontally, the tenon and mortise protrusion on the upper horizontal side of the sub-wooden strip matches the tenon and mortise groove on the lower horizontal side of the mother wood strip; the fitting groove on the upper horizontal side of the sub-wooden strip matches the fitting protrusion on the lower horizontal side of the mother wood strip.

[0015] As a preferred technical solution, the left and right sides of the longitudinal direction of the sub-wooden strip are provided with a toothed joint mechanism; the toothed joint mechanism includes toothed teeth and toothed grooves.

[0016] As a preferred technical solution, when the ecological board is spliced ​​longitudinally, the teeth of the sub-board strips cooperate with the teeth grooves of the mother board strips; the teeth grooves of the sub-board strips cooperate with the teeth of the mother board strips.

[0017] As a preferred technical solution, the tenon and mortise of the sub-wooden strip is provided with a limiting boss at one end and an inclined surface at the other end; similarly, the tenon and mortise of the mother-wooden strip is provided with a limiting boss at one end and an inclined surface at the other end; when the sub-wooden strip and the mother-wooden strip are longitudinally spliced, the inclined surface of a tenon and mortise on the mother-wooden strip abuts against the limiting boss of the tenon and mortise of the sub-wooden strip.

[0018] As a preferred technical solution, a clearance platform is provided on one end of the toothed joint mechanism of the sub-wooden strip; thickened teeth are provided on the toothed joint mechanism at the other end of the sub-wooden strip; similarly, a clearance platform is provided on one end of the toothed joint mechanism of the mother wood strip; thickened teeth are provided on the toothed joint mechanism at the other end of the mother wood strip.

[0019] As a preferred technical solution, when the sub-wooden strip and the mother-wooden strip are longitudinally spliced, the thickened teeth of the mother-wooden strip abut against the clearance platform of the sub-wooden strip, and the tenon and mortise grooves on the sub-wooden strip are aligned with the tenon and mortise grooves on the mother-wooden strip.

[0020] As a preferred technical solution, both the sub-wooden strips and the mother-wooden strips are solid wood structures and are made of birch wood.

[0021] As a preferred technical solution, the cross-section of the mortise and tenon groove and the fitting protrusion is an inverted trapezoidal structure.

[0022] As a preferred technical solution, when the sub-wooden strip and the mother wood strip are spliced ​​laterally, the splice point between the upper lateral side of the sub-wooden strip and the lower lateral side of the mother wood strip has 5 contact surfaces.

[0023] The advantages of this utility model are:

[0024] 1. This utility model discloses a mortise and tenon joint ecological board. The entire ecological board is spliced ​​horizontally using mortise and tenon joints. The mortise and tenon structures interlock with each other, transferring the stress point of the board from the glued surface in the prior art to the physical interlocking surface, enhancing the bending, pressing and shearing resistance, making the structure firm and not easy to deform. At the same time, because of the mortise and tenon joint, only a small amount of glue is needed or the splicing can be done without glue by direct pressing, avoiding the problem of glue aging and failure, and has good environmental performance.

[0025] 2. The ecological boards are spliced ​​longitudinally using a toothed joint method. The effect of this design is that the sub-board strips and the main board strips are fixed longitudinally by the toothed joint method. The toothed joint method greatly increases the splicing contact surface (compared to flat joint), resulting in stronger bonding force and better bending resistance after gluing. At the same time, the multiple teeth intersperse the internal stress of the board and prevent cracking.

[0026] 3. The upper transverse sides of both the sub-wooden strips and the mother-wooden strips are provided with mortise and tenon protrusions, and there are two mortise and tenon protrusions in total, forming a fitting groove between the two mortise and tenon protrusions; the lower transverse sides of the sub-wooden strips are also provided with mortise and tenon grooves, and there are two mortise and tenon grooves in total, distributed parallel to each other; and a fitting protrusion is provided between the two mortise and tenon grooves. The effect of this design is that both the sub-wooden strips and the mother-wooden strips have mortise and tenon joints in the transverse direction, achieving bidirectional mortise and tenon joints (i.e., mortise and tenon joints on both the upper and lower transverse sides), resulting in a robust structure. It also facilitates splicing, requiring only the sub-wooden strips and the mother-wooden strips to be spliced ​​sequentially. Furthermore, the thermal expansion and contraction characteristics of the ecological board are naturally accommodated by the mortise and tenon structure, allowing for minor adjustments to deformation at the joints and preventing breakage caused by localized concentration.

[0027] 4. The tenon and mortise protrusions of the sub-wooden strips mate with the tenon and mortise grooves on the mother-wooden strips; the interlocking grooves on the sub-wooden strips mate with the interlocking protrusions on the mother-wooden strips. The effect of this design is that, on the tenon and mortise joint surface, two tenon and mortise protrusions are interlocked with two tenon and mortise grooves, creating two layers of tenon and mortise joint surfaces during splicing. In addition, the interlocking grooves between the two tenon and mortise protrusions interlock with the interlocking protrusions create another layer of tenon and mortise joint surfaces, thus creating three layers of tenon and mortise joint surfaces, resulting in better structural performance and higher strength. Secondly, the interlocking method ensures even stress distribution, avoiding breakage caused by localized concentration.

[0028] 5. When the sub-wooden strip and the mother-wooden strip are joined, the thickened teeth of the sub-wooden strip abut against the clearance platform of the mother-wooden strip, and the tenon and mortise grooves on the sub-wooden strip are aligned with the tenon and mortise grooves on the mother-wooden strip. The effect of this design is that by setting a clearance platform and thickened teeth on the toothed joint mechanism, it ensures that the sub-wooden strip and the mother-wooden strip are aligned neatly during longitudinal splicing, so that the two strips form a straight line after splicing, avoiding misalignment in the longitudinal direction after splicing.

[0029] 6. One end of the tenon and mortise strip is provided with a limiting boss, and the other end is provided with an inclined surface. The effect of this design is that, through the design of the limiting boss, thickened teeth and inclined surface, the connection between the sub-wooden strips and the wood strips is more compact when splicing them longitudinally, reducing splicing gaps. At the same time, it has a guiding function, which can quickly match the toothed end of the sub-wooden strip with the appropriate toothed end of the mother wood strip, thereby improving the efficiency of installation.

[0030] 7. The cross-section of the mortise and tenon groove and the interlocking protrusion is an inverted trapezoidal structure. The effect of this design is that the trapezoidal structure allows for a slight gap between the mortise and tenon protrusion that mates with the mortise and tenon groove, and the interlocking groove that mates with the interlocking protrusion. Furthermore, it provides space to compensate for the expansion and deformation of the eco-board when it is exposed to moisture, preventing cracking at the joints and overall warping.

[0031] 8. When the sub-wood strip and the main wood strip are joined laterally, there are five contact surfaces at the joint between the upper lateral side of the sub-wood strip and the lower lateral side of the main wood strip. The effect of this design is as follows: Specifically, the two mortise and tenon protrusions on the upper lateral side of the sub-wood strip have two contact surfaces, the corresponding groove has one contact surface, and the outer edges of the two mortise and tenon protrusions also have contact surfaces to the outer edge of the sub-wood strip, forming a total of five contact surfaces. This multi-faceted contact increases the contact area, resulting in a more robust structure. Attached Figure Description

[0032] Appendix Figure 1 This is a schematic diagram of the overall appearance of a mortise and tenon joint ecological board according to this utility model.

[0033] Appendix Figure 2 This is a schematic diagram of the horizontal upper side of the wooden strip.

[0034] Appendix Figure 3 This is a structural diagram of the lower horizontal side of the wooden strip.

[0035] Appendix Figure 4 This is a schematic diagram of the upper horizontal side of the mother wooden strip.

[0036] Appendix Figure 5 This is a structural diagram of the lower horizontal side of the mother wooden strip.

[0037] Appendix Figure 6 This is a schematic diagram of the longitudinal assembly structure of the child and mother wooden strips.

[0038] Appendix Figure 7 This is a schematic diagram of the assembly structure of the wooden strips and the mother wooden strip in the transverse direction.

[0039] Appendix Figure 8 This is a partial side view of the assembly of the wooden strips and the mother wooden strip in the transverse direction.

[0040] Appendix Figure 9 This is a structural diagram of one end of a wooden strip.

[0041] Appendix Figure 10 This is a partially enlarged structural diagram of one side of the joint between the mother and daughter wooden strips.

[0042] Appendix Figure 11This is a partially enlarged structural diagram of the other side of the joint between the mother and daughter wooden strips. Detailed Implementation

[0043] The present invention will be further described below with reference to the embodiments and the accompanying drawings.

[0044] The reference numerals and components involved in the accompanying drawings are shown below:

[0045] 1. Sub-wooden strip 2. Mother-wooden strip

[0046] 3. Mortise and tenon joint 31. Inclined surface

[0047] 32. Limiting boss 33. Fitting groove

[0048] 4. Mortise and tenon groove 41. Fitting protrusion

[0049] 5. Gear Mechanism 51. Gear Connector

[0050] 52. Toothed groove 53. Thickened tooth

[0051] 54. Giving way to the platform

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0053] To facilitate understanding of the embodiments of this utility model, the following will provide further explanation and description with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0054] In the description of the embodiments of this utility model, it should be noted that the terms "lateral," "longitudinal," "left side," "right side," "upper side," "lower side," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; in addition, unless otherwise expressly specified and limited, the terms "installed," "connected," and "connected" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0055] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the overall appearance of a mortise and tenon joint ecological board according to this utility model. The ecological board is rectangular in shape; it comprises a sub-wood strip and a mother-wood strip 2, with the horizontal sections joined using mortise and tenon joints and the vertical sections joined using tooth joints; both the sub-wood strip 1 and the mother-wood strip 2 are solid wood structures made of birch.

[0056] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the horizontal upper side of the wooden strip 1. Figure 3 This is a structural schematic diagram of the lower transverse side of the sub-wooden strip 1. The sub-wooden strip 1 has two tenon-and-mortise protrusions 3 on its upper transverse side, forming a fitting groove 33 between them. The left and right longitudinal sides of the sub-wooden strip 1 are both provided with toothed joint mechanisms 5, each including a tooth 51 and a toothed groove 52. The lower transverse side of the sub-wooden strip 1 has two tenon-and-mortise grooves 4, which are parallel to each other. A fitting protrusion 41 is provided between the two tenon-and-mortise grooves 4.

[0057] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the upper horizontal side of the mother wooden strip. Figure 5This is a structural diagram of the lower transverse side of the mother wooden strip 2. The upper transverse side of the mother wooden strip 2 is provided with two tenon-and-mortise protrusions 3, forming a fitting groove 33 between them. The left and right longitudinal sides of the mother wooden strip 2 are both provided with toothed joint mechanisms 5. The lower transverse side of the mother wooden strip 2 is provided with two tenon-and-mortise grooves 4, which are parallel to each other. A fitting protrusion 41 is provided between the two tenon-and-mortise grooves 4.

[0058] As a preferred embodiment, the horizontal width of the sub-wooden strip 1 is 70-80mm; more preferably, the horizontal width of the sub-wooden strip 1 is 75mm; the thickness of the sub-wooden strip 1 is 22-26mm; more preferably, the thickness of the sub-wooden strip 1 is 24mm; the width of the tenon and mortise protrusion 3 is 4mm; the width of the fitting groove 33 is 6mm; and the central axis of the fitting groove 33 coincides with the central axis of the sub-wooden strip 1 in the thickness direction.

[0059] The width of the tenon groove 4 on the sub-wooden strip 1 is 5mm; the width of the fitting protrusion 41 is 5mm.

[0060] The distance from the centerline of the fitting groove 33 to the inner wall of the tenon and mortise protrusion 3 is 3mm. There are a total of 22 toothed grooves 52 on the left and right sides of the sub-wooden strip 1; the toothed grooves 52 have a V-shaped structure; and the depth of the toothed grooves 52 is 7mm.

[0061] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the longitudinal assembly structure of the sub-wooden strip 1 and the mother-wooden strip 2. The toothed joint 51 of the sub-wooden strip 1 engages with the toothed joint groove 52 of the mother-wooden strip 2; the toothed joint groove 52 of the sub-wooden strip 1 engages with the toothed joint 51 of the mother-wooden strip 2.

[0062] Please refer to Figures 7-8 , Figure 7 This is a schematic diagram of the assembly structure of the wooden strip and the mother wooden strip 2 in the transverse direction. Figure 8 This is a partial side view of the assembly of the wooden strips and the mother wooden strip in the transverse direction. When the ecological board is spliced ​​in the transverse direction, the tenon and mortise protrusion 3 of the sub-wooden strip 1 cooperates with the tenon and mortise groove 4 on the mother wooden strip 2; the fitting groove 33 on the sub-wooden strip 1 cooperates with the fitting protrusion 41 on the mother wooden strip 2.

[0063] Please refer to Figure 9 , Figure 9This is a structural diagram of one end of the sub-wooden strip. A clearance platform 54 is provided on the toothed joint mechanism 5 at one end of the sub-wooden strip 1; thickened teeth 53 are provided on the toothed joint mechanism 5 at the other end of the sub-wooden strip 1. Similarly, a clearance platform 54 is provided on the toothed joint mechanism 5 at one end of the mother wood strip 2; thickened teeth 53 are provided on the toothed joint mechanism 5 at the other end of the mother wood strip 2.

[0064] Please refer to Figure 10 , Figure 10 This is a partially enlarged structural diagram of one side of the joint between the sub-wooden strip 1 and the mother-wooden strip 2. In the longitudinally joined state, the thickened teeth 53 of the mother-wooden strip 2 abut against the clearance platform 54 of the sub-wooden strip 1, and the tenon and mortise grooves 4 on the sub-wooden strip 1 are aligned with the tenon and mortise grooves 4 on the mother-wooden strip 2.

[0065] Please refer to Figure 11 , Figure 11 This is a partially enlarged structural diagram of the other side of the joint between the sub-wooden strip and the mother-wooden strip. The sub-wooden strip 1 has a tenon-and-mortise protrusion 3 with a limiting boss 32 at one end and an inclined surface 31 at the other end; similarly, the mother-wooden strip 2 has a tenon-and-mortise protrusion 3 with a limiting boss 32 at one end and an inclined surface 31 at the other end. When the sub-wooden strip 1 and mother-wooden strip 2 are longitudinally joined, the inclined surface 31 of one tenon-and-mortise protrusion 3 on the mother-wooden strip 2 abuts against the limiting boss 32 of the tenon-and-mortise protrusion 3 on the sub-wooden strip 1.

[0066] It should be noted that the following is an explanation of this embodiment:

[0067] The ecological board is rectangular in shape and comprises sub-wood strips and mother-wood strips 2, joined together laterally using mortise and tenon joints. The advantages of this design are: the entire ecological board is joined laterally using mortise and tenon joints, with the joints interlocking to transfer the stress point from the glued surface to the physically interlocking surface, enhancing its resistance to bending, compression, and shearing. This results in a robust structure that is less prone to deformation. Furthermore, the mortise and tenon joints require only a small amount of glue for fixing, avoiding glue aging and failure, and improving environmental performance. In contrast, existing ecological boards typically use glue to directly fix the sub-wood strips 1 and mother-wood strips 2 laterally. However, glue has limited adhesive strength, and aging glue can easily cause deformation. Additionally, to increase strength, large amounts of glue are usually required, which releases toxic gases, affecting its environmental performance.

[0068] The ecological board is spliced ​​longitudinally using a toothed joint method. The effect of this design is that the sub-board strip 1 and the mother door strip are fixed longitudinally by the toothed joint method. The toothed joint method greatly increases the splicing contact surface (compared to flat joint), resulting in stronger bonding force and better bending resistance after gluing. At the same time, the multiple teeth intersperse the internal stress of the board and prevent cracking.

[0069] The sub-wooden strip 1 and the mother-wooden strip 2 are provided with mortise and tenon protrusions 3 on their transverse upper surfaces, and there are two mortise and tenon protrusions 3 in total, forming a fitting groove 33 between the two mortise and tenon protrusions 3. The sub-wooden strip 1 is provided with mortise and tenon grooves 4 on its transverse lower surface, and there are two mortise and tenon grooves 4 in total, which are distributed in parallel between the two mortise and tenon grooves 4. A fitting protrusion 41 is provided between the two mortise and tenon grooves 4. The effect of this design is that both the sub-wooden strip 1 and the mother-wooden strip 2 have mortise and tenon interlocking surfaces in the transverse direction, that is, to achieve bidirectional mortise and tenon interlocking (i.e., mortise and tenon interlocking on the transverse upper and transverse lower surfaces), resulting in a strong structure. At the same time, it is convenient to splice, as the sub-wooden strip and the mother-wooden strip 2 can be spliced ​​together in sequence. Secondly, the thermal expansion and contraction characteristics of the ecological board are naturally accommodated by the mortise and tenon structure, and the deformation at the joint can be finely adjusted, avoiding breakage caused by local concentration.

[0070] The tenon and mortise protrusion 3 of the sub-wooden strip 1 engages with the tenon and mortise groove 4 on the mother-wooden strip 2; the interlocking groove 33 on the sub-wooden strip 1 engages with the interlocking protrusion 41 on the mother-wooden strip 2. The effect of this design is that, on the tenon and mortise joint surface, two tenon and mortise protrusions 3 and two tenon and mortise grooves 4 are interlocked, creating two layers of tenon and mortise joint surfaces during splicing. In addition, the interlocking groove 33 between the two tenon and mortise protrusions 3 and the interlocking protrusion 41 creates another layer of tenon and mortise joint surfaces. Thus, three layers of tenon and mortise joint surfaces are created, resulting in better structural performance and higher strength. Furthermore, the interlocking method ensures even stress distribution, preventing breakage due to localized concentration.

[0071] Both the sub-wood strip 1 and the mother wood strip 2 are provided with a toothed joint mechanism 5 on their longitudinal left and right sides. The toothed joint mechanism 5 includes toothed teeth 51 and toothed grooves 52. The toothed teeth 51 of the sub-wood strip 1 engage with the toothed grooves 52 of the mother wood strip 2; the toothed grooves 52 of the sub-wood strip 1 engage with the toothed teeth 51 of the mother wood strip 2. The effect of this design is that by splicing in the longitudinal direction using a toothed joint method, the bonding area is increased, resulting in stronger adhesion after gluing and better tensile and bending resistance. Furthermore, the multiple interlocking teeth between the toothed teeth 51 and the toothed grooves 52 disperse the internal stress of the wood, effectively resisting warping or cracking due to temperature changes.

[0072] The sub-wooden strip 1 has a clearance platform 54 on one end of its toothed joint mechanism 5, and a thickened tooth 53 on the other end of its toothed joint mechanism 5. Similarly, the mother wood strip 2 has a clearance platform 54 on one end of its toothed joint mechanism 5, and a thickened tooth 53 on the other end of its toothed joint mechanism 5. When the sub-wooden strip 1 and the mother wood strip 2 are joined, the thickened tooth 53 of the mother wood strip 2 abuts against the clearance platform 54 of the sub-wooden strip 1, and the mortise and tenon groove 4 on the sub-wooden strip 1 aligns with the mortise and tenon groove 4 on the mother wood strip 2. The effect of this design is that by setting the clearance platform 54 and the thickened tooth 53 on the toothed joint mechanism 5, it ensures that the sub-wooden strip 1 and the mother wood strip 2 are aligned neatly when joined longitudinally, so that the two wood strips form a straight line after joining, avoiding misalignment of the two wood strips longitudinally after joining.

[0073] The tenon and mortise protrusion 3 of the sub-wooden strip 1 has a limiting boss 32 at one end and an inclined surface 31 at the other end; similarly, the tenon and mortise protrusion 3 of the mother-wooden strip 2 has a limiting boss 32 at one end and an inclined surface 31 at the other end. When the sub-wooden strip 1 and mother-wooden strip 2 are joined, the inclined surface 31 of one tenon and mortise protrusion 3 on the mother-wooden strip 2 abuts against the limiting boss 32 of the tenon and mortise protrusion 3 of the sub-wooden strip 1. The effect of this design is that, through the design of the limiting boss 32, the thickened teeth 53, and the inclined surface 31, the sub-wooden strip 1 and the wood strip are more tightly connected when longitudinally joined, reducing splicing gaps. It also serves as a guide, enabling quick matching of the toothed end of the sub-wooden strip 1 with the appropriate toothed end of the mother-wooden strip 2, improving installation efficiency (because both the sub-wooden strip 1 and mother-wooden strip 2 have toothed mechanisms 5 at both ends, without guidance on the splicing direction through processing details, incorrect splicing can easily occur, affecting the quality of the ecological board).

[0074] The sub-wooden strip 1 has a transverse width of 70-80mm, and more preferably, a transverse width of 75mm; the thickness of the sub-wooden strip 1 is 22-26mm; more preferably, a thickness of 24mm. The effect of this design is that the wooden strips of this size can be spliced ​​into ecological boards of different sizes, reducing wood waste; structurally, the wooden strips of this size are small in volume, resulting in more uniform drying, dispersed internal stress, and less prone to deformation and cracking after splicing, thus making the spliced ​​ecological board highly flat.

[0075] The width of the tenon and mortise protrusion 3 is 4mm; the width of the fitting groove 33 is 6mm. The effect of this design is that by limiting the size specifications, the fit tolerance of the tenon and mortise is controllable, avoiding loosening and cracking caused by dimensional deviations, and ensuring the joint strength.

[0076] Both the sub-wooden strip 1 and the mother-wooden strip 2 are solid wood structures made of birch. The effect of this design is that the entire eco-friendly board is made of birch, has a solid wood structure, and is of high quality.

[0077] The cross-section of the mortise and tenon groove 4 and the fitting protrusion 41 is an inverted trapezoidal structure. The effect of this design is that the trapezoidal structure allows for a slight gap between the mortise and tenon protrusion 3 that mates with the mortise and tenon groove 4, and the fitting groove 33 that mates with the fitting protrusion 41. Furthermore, it provides space to compensate for the expansion and deformation of the eco-board when it is exposed to moisture, preventing cracking at the joints and overall warping.

[0078] When the sub-wooden strip 1 and the main wood strip are joined laterally, there are five contact surfaces at the joint between the upper lateral side of the sub-wooden strip 1 and the lower lateral side of the main wood strip 2. The effect of this design is as follows: Specifically, the two tenon-and-mortise protrusions 3 on the upper lateral side of the sub-wooden strip 1 have two contact surfaces, the corresponding fitting groove 33 has one contact surface, and the outer edges of the two tenon-and-mortise protrusions 3 also have contact surfaces to the outer edge of the sub-wooden strip 1, forming a total of five contact surfaces. This multi-faceted contact increases the contact area and strengthens the structure.

[0079] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several improvements and additions without departing from the principle of the present utility model, and these improvements and additions should also be considered within the protection scope of the present utility model.

Claims

1. A mortise and tenon jointed ecological board, characterized in that, The ecological board comprises a child board strip and a parent board strip, and the horizontal splicing of the ecological board is achieved by the mortise-tenon splicing of the child board strip and the parent board strip, and the longitudinal splicing of the ecological board is achieved by the tooth connection of the child board strip and the parent board strip. The horizontal upper side of the child board strip and the parent board strip is provided with two mortise-tenon protrusions, and a fitting groove is formed between the two mortise-tenon protrusions; the horizontal lower side of the child board strip and the parent board strip is provided with two mortise-tenon grooves, and the two mortise-tenon grooves are distributed in parallel; and a fitting protrusion is arranged between the two mortise-tenon grooves. When the ecological board is horizontally spliced, the mortise-tenon protrusion on the horizontal upper side of the child board strip is matched with the mortise-tenon groove on the horizontal lower side of the parent board strip, and the fitting groove on the horizontal upper side of the child board strip is matched with the fitting protrusion on the horizontal lower side of the parent board strip.

2. The mortise and tenon tongue and groove ecological board according to claim 1, characterized in that, The left side and the right side of the child board strip in the longitudinal direction are both provided with tooth connection mechanisms; the tooth connection mechanism comprises a tooth connection tooth and a tooth connection groove.

3. The mortise and tenon tongue and groove ecological board according to claim 2, characterized in that, When the ecological board is longitudinally spliced, the tooth connection tooth of the child board strip is matched with the tooth connection groove of the parent board strip, and the tooth connection groove of the child board strip is matched with the tooth connection tooth of the parent board strip.

4. The mortise and tenon tongue and groove ecological board according to claim 3, characterized in that, One end of the mortise-tenon protrusion of the child board strip is provided with a limiting boss, and the other end is provided with an inclined surface; similarly, one end of the mortise-tenon protrusion of the parent board strip is provided with a limiting boss, and the other end is provided with an inclined surface; in the longitudinal splicing state of the child board strip and the parent board strip, the inclined surface of one mortise-tenon protrusion on the parent board strip abuts against the limiting boss of the mortise-tenon protrusion of the child board strip.

5. The mortise and tenon tongue and groove ecological board according to claim 4, characterized in that, One end of the tooth connection mechanism of the child board strip is provided with a giving platform, and the other end of the tooth connection mechanism of the child board strip is provided with a thickened tooth; similarly, one end of the tooth connection mechanism of the parent board strip is provided with a giving platform, and the other end of the tooth connection mechanism of the parent board strip is provided with a thickened tooth.

6. The mortise and tenon tongue and groove ecological board according to claim 5, characterized in that, In the longitudinal splicing state of the child board strip and the parent board strip, the thickened tooth of the parent board strip abuts against the giving platform of the child board strip, and the mortise-tenon groove on the child board strip is aligned with the mortise-tenon groove on the parent board strip.

7. The mortise and tenon tongue and groove panel according to any one of claims 1-6, characterized in that, The child board strip and the parent board strip are both solid wood structures and are made of birch.

8. The mortise and tenon tongue and groove ecological board according to claim 1, characterized in that, The cross section of the mortise-tenon groove and the fitting protrusion is in an inverted trapezoidal structure.

9. The mortise and tenon tongue and groove ecological board according to claim 1, characterized in that, In the horizontal splicing state of the child board strip and the parent board strip, the horizontal upper side of the child board strip and the horizontal lower side of the parent board strip have five contact surfaces at the splicing position.

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