Composite door plate and door

Abstract

The utility model discloses a composite door plate and a door. The composite door plate comprises a surface plate, a middle plate and a back plate which are sequentially connected in the front-back direction. Both the surface board and the back board are carbonized wood boards, and a plurality of grooves which are sunken in the direction close to the back board are formed in the side, away from the back board, of the surface board; the middle plate comprises a core plate and a frame surrounding the core plate, the core plate is a density plate, and the frame is a solid wood plate; the inserting pieces of the frame are inserted into the inserting grooves of the core plate, and the frame and the core plate are clamped. A plurality of grooves which are sunken towards the back plate are formed in one side, far away from the back plate, of the surface plate, and the surface is milled, so that the composite door plate is more attractive. The surface plate and the back plate are carbonized wood plates, and the problem that the surface of the door plate is prone to cracking is solved. The density board core board and the solid wood frame are tenoned and spliced to form the middle board, the influence of surface board milling type internal stress deformation on the middle board is reduced, the keel flatness is improved, and the door board deformation problem is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture production technology, and more specifically, to a composite door panel and a door. Background Art

[0002] Solid wood boards are durable, have natural textures, are environmentally friendly and healthy, and are widely used in the furniture industry. Solid wood door panels can be milled on the surface of solid wood door panels according to demand to show the natural texture of solid wood door panels and make them more beautiful. However, solid wood boards are expensive and have high requirements for the environment. Solid wood boards are prone to expansion and deformation due to environmental factors (such as temperature and humidity changes).

[0003] For example, Chinese patent application No. 201910493550.4 and application date 2019.06.06 discloses a multi-layer solid wood door panel shaping process, including designing a milling path; milling the shaping groove of the upper solid wood door panel of the multi-layer solid wood door panel; taking out the multi-layer solid wood door panel that has been milled; pouring polyester putty into the shaping groove so that the polyester putty fully fills the shaping groove; curing the polyester putty to obtain a semi-finished solid wood door panel; milling the shaping groove a second time; decomposing and shaping the multi-layer solid wood door panel to obtain a shaped solid wood door panel; and subjecting the shaped solid wood door panel to a blister process or a spray painting process to obtain a finished solid wood door panel. The solid wood board used in the prior art is prone to moisture absorption and shrinkage in different environments, which makes the door panel prone to cracking, and the cracking effect is more obvious after the paint is dried.

[0004] The existing technology also uses a composite door panel with a middle basswood multilayer board and a double solid wood surface board, but due to the thin thickness of the solid wood surface board, it is still easy to crack after the composite; in addition, the keel structure is a single basswood board. After the composite door panel is milled on one side, the keel is easily warped due to the influence of internal stress, causing deformation of the door panel.

[0005] Therefore, there is an urgent need to provide a composite door panel and door that can avoid cracking and deformation. Utility Model Content

[0006] In view of this, on the one hand, the utility model provides a composite door panel, comprising a surface panel, a middle panel and a back panel connected in sequence along the front-to-back direction;

[0007] The front plate and the back plate are both made of carbonized wood, and a side of the front plate away from the back plate is provided with a plurality of grooves that are sunken toward the back plate;

[0008] The middle plate includes a core plate and a frame surrounding the core plate, wherein the core plate is a density board and the frame is a solid wood board; the frame includes a plug-in protruding toward the core plate on one side close to the core plate, and the core plate includes a slot recessed toward the inside of the core plate on one side close to the frame, wherein the plug-in is inserted into the slot, and the frame is engaged with the core plate;

[0009] The frame includes an upper frame, a left frame, a lower frame and a right frame connected in sequence; the plug-in protruding from the upper frame in the direction close to the core board is an upper plug-in, the slot of the core board close to the upper frame is an upper slot, and the upper plug-in is inserted into the upper slot; the plug-in protruding from the left frame in the direction close to the core board is a left plug-in, the slot of the core board close to the left frame is a left slot, and the left plug-in is inserted into the left slot; the plug-in protruding from the lower frame in the direction close to the core board is a lower plug-in, the slot of the core board close to the lower frame is a lower slot, and the lower plug-in is inserted into the lower slot; the plug-in protruding from the right frame in the direction close to the core board is a right plug-in, the slot of the core board close to the right frame is a right slot, and the right plug-in is inserted into the right slot; the upper plug-in, the left plug-in, the lower plug-in and the right plug-in are all quadrangular prisms; the upper plug-in and the lower plug-in are arranged symmetrically with the left and right directions as the axis, and the left plug-in and the right plug-in are arranged symmetrically with the upper and lower directions as the axis; the upper and lower directions are the directions from the upper frame to the lower frame, and the left and right directions are the directions from the left frame to the right frame;

[0010] In the up-down direction, the length of the upper plug-in is less than or equal to the depth of the upper slot, the length of the lower plug-in is less than or equal to the depth of the lower slot, and in the left-right direction, the length of the left plug-in is less than or equal to the depth of the left slot, and the length of the right plug-in is less than or equal to the depth of the right slot;

[0011] Along the direction parallel to the plane where the panel is located, the cross-sections of the upper frame, the left frame, the lower frame and the right frame are all trapezoidal, and the bottom angles of the trapezoids are all 45°, or,

[0012] Along a direction parallel to the plane where the table panel is located, the cross-sections of the upper frame, the left frame, the lower frame and the right frame are rectangular.

[0013] Optionally, along the front-to-back direction, the cross-sections of the plug-in and the slot are rectangular.

[0014] Optionally, along the front-to-back direction, the cross-sections of the left plug-in, the right plug-in, and the left slot and the right slot are isosceles trapezoids, and the cross-sections of the upper plug-in, the lower plug-in, the upper slot and the lower slot are rectangular;

[0015] or,

[0016] Along the front-to-back direction, the cross-sections of the left plug-in, the right plug-in, and the left slot and the right slot are rectangular, and the cross-sections of the upper plug-in, the lower plug-in, the upper slot and the lower slot are isosceles trapezoidal.

[0017] Optionally, along the front-to-back direction, the thickness of the top plate is between 3mm-8mm, the thickness of the middle plate is between 10mm-15mm, and the thickness of the back plate is between 3mm-8mm.

[0018] Optionally, along the left-right direction, the width of the groove is between 5mm and 15mm, and the distance between two adjacent grooves is between 5mm and 15mm.

[0019] Optionally, along the up-down direction or along the left-right direction, the width of the border is between 40 mm and 60 mm.

[0020] Optionally, along the left-right direction or along the up-down direction, the length of the plug-in is between 5 mm and 10 mm, and the depth of the slot is between 6 mm and 12 mm.

[0021] Optionally, along a direction parallel to the plane where the surface plate is located, the cross-section of the groove is a quadrilateral, a circle, a sector or an irregular shape.

[0022] Optionally, the surface plate, the middle plate and the back plate are bonded in sequence using white latex.

[0023] On the other hand, the utility model also provides a door, including a door frame structure and a composite door panel, wherein the composite door panel is fixedly connected to the door frame structure, a door lock is installed on the composite door panel, and the composite door panel is any of the composite door panels described above.

[0024] Compared with the prior art, the composite door panel and door provided by the utility model achieve at least the following beneficial effects:

[0025] The utility model provides a composite door panel and door, the composite door panel comprises a surface panel, a middle panel and a back panel connected in sequence along the front-back direction; both the surface panel and the back panel are carbonized wood boards, and a side of the surface panel away from the back panel is provided with a plurality of grooves sunken in the direction close to the back panel; the middle panel comprises a core panel and a frame surrounding the core panel, the core panel is a density board, and the frame is a solid wood board; a side of the frame close to the core panel comprises a plug-in protruding in the direction close to the core panel, and a side of the core panel close to the frame comprises a slot sunken in the core panel, the plug-in is inserted into the slot, and the frame is engaged with the core panel. By providing a plurality of grooves sunken in the direction close to the back panel on the side of the surface panel away from the back panel, and by milling the surface to shape the shape, the composite door panel is made more beautiful. Both the surface panel and the back panel are carbonized wood boards, which solves the problem of easy cracking of the door panel surface. The density board core panel is mortised and spliced ​​with the solid wood frame to form the middle panel, which reduces the influence of the middle panel on the stress deformation caused by the milling of the surface panel, increases the flatness of the keel, and solves the problem of door panel deformation.

[0026] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0027] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0029] Figure 1 This is a schematic diagram of a composite door panel provided by the utility model;

[0030] Figure 2 This is a schematic diagram of a middle plate of a composite door panel provided by the utility model;

[0031] Figure 3 yes Figure 2 A cross-sectional view in the A-A' direction;

[0032] Figure 4 Yes Yes Figure 3 A decomposed and enlarged schematic diagram of the N region in the middle;

[0033] Figure 5 This is another schematic diagram of the middle plate of the composite door panel provided by the utility model;

[0034] Figure 6 yes Figure 5 A cross-sectional view in the B-B' direction;

[0035] Figure 7 Yes Yes Figure 6 A decomposed and enlarged schematic diagram of the middle M area;

[0036] Figure 8 It is a schematic diagram of the door provided by the utility model. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0039] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0040] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0041] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] Embodiment 1

[0043] Combination Figures 1 to 4 To illustrate a specific embodiment of the composite door panel 100 provided by the utility model, Figure 1 is a schematic diagram of a composite door panel 100 provided in this embodiment. Figure 2 is a schematic diagram of the middle plate 2 of the composite door panel 100 provided in this embodiment, Figure 3 yes Figure 2 A cross-sectional view in the A-A' direction, Figure 4 Yes Yes Figure 3 An enlarged schematic diagram of the N region.

[0044] The composite door panel 100 provided in this embodiment includes a front panel 1, a middle panel 2 and a back panel 3 connected in sequence along a front-to-back direction Z;

[0045] The surface plate 1 and the back plate 3 are both made of carbonized wood. The surface plate 1 is provided with a plurality of grooves 11 on the side away from the back plate 3 and concave toward the back plate 3.

[0046] The middle plate 2 includes a core plate 201 and a frame 202 surrounding the core plate 201, wherein the core plate 201 is a density board and the frame 202 is a solid wood board; the frame 202 includes a plug-in 221 protruding toward the core plate 201 on one side close to the core plate 201, and the core plate 201 includes a slot 211 recessed toward the inside of the core plate 201 on one side close to the frame 202, wherein the plug-in 221 is inserted into the slot 211, and the frame 202 is engaged with the core plate 201;

[0047] The frame 202 includes an upper frame 21, a left frame 22, a lower frame 23 and a right frame 24 connected in sequence; the plug-in 221 of the upper frame 21 protruding in the direction close to the core board 201 is an upper plug-in, and the slot 211 of the core board 201 close to the upper frame 21 is an upper slot, and the upper plug-in is inserted into the upper slot; the plug-in 221 of the left frame 22 protruding in the direction close to the core board 201 is a left plug-in 220, and the slot 211 of the core board 201 close to the left frame 22 is a left slot 210, and the left plug-in 220 is inserted into the left slot 210; the plug-in 221 of the lower frame 23 protruding in the direction close to the core board 201 is a lower plug-in, and the core board The slot 211 of 201 close to the lower frame 23 is the lower slot, and the lower plug-in is inserted into the lower slot; the plug-in 221 protruding from the right frame 24 toward the direction close to the core board 201 is the right plug-in, and the slot 211 of the core board 201 close to the right frame 24 is the right slot, and the right plug-in is inserted into the right slot; the upper plug-in, the left plug-in 220, the lower plug-in and the right plug-in are all quadrangular prisms; the upper plug-in and the lower plug-in are symmetrically arranged with the left-right direction X as the axis, and the left plug-in 220 and the right plug-in are symmetrically arranged with the upper-lower direction Y as the axis; the upper-lower direction Y is the direction from the upper frame 21 to the lower frame 23, and the left-right direction X is the direction from the upper frame 22 to the right frame 24;

[0048] In the up-down direction Y, the length of the upper plug-in is less than or equal to the depth of the upper slot, the length of the lower plug-in is less than or equal to the depth of the lower slot, and in the left-right direction X, the length of the left plug-in 220 is less than or equal to the depth of the left slot 210, and the length of the right plug-in is less than or equal to the depth of the right slot;

[0049] Along the direction parallel to the plane where the table panel 1 is located, the cross-sections of the upper frame 21, the left frame 22, the lower frame 23 and the right frame 24 are all trapezoidal, and the bottom angles of the trapezoids are all 45°.

[0050] Specifically, refer to Figure 1 The composite door panel 100 includes a surface panel 1, a middle panel 2 and a back panel 3 which are sequentially bonded along a front-to-back direction Z, wherein the front-to-back direction Z is the direction from the surface panel 1 to the back panel 3; the surface panel 1, the middle panel 2 and the back panel 3 are bonded by white latex. White latex can be quickly cured at room temperature without heating, and is convenient to use. The adhesive layer of the cured white latex has good toughness and durability, is not easy to age and fall off, and can maintain the bonding effect for a long time.

[0051] Reference Figure 1 The surface plate 1 and the back plate 3 are both carbonized wood. The side of the surface plate 1 away from the back plate 3 is provided with a plurality of grooves 11 that are sunken toward the side close to the back plate 3. By providing a plurality of grooves 11 that are sunken toward the side close to the back plate 3 on the side of the surface plate 1 away from the back plate 3, that is, milling a shape on the surface of the surface plate 1, the composite door panel 100 is more beautiful. Along the plane parallel to the surface plate 1, the cross section of the groove 11 can be a quadrilateral, a circle, a sector or other shapes. Figure 1 In the figure, the cross section of the groove 11 is only taken as an example as a quadrilateral.

[0052] In the prior art, a shape is usually milled on the surface of a solid wood panel to show the natural texture effect of a solid wood door panel. Since the solid wood panel is thin, natural solid wood is easy to absorb moisture and shrink in different environments, and the composite door panel surface is prone to cracking. In this embodiment, both the panel 1 and the back panel 3 are carbonized wood panels. Carbonized wood is a homogeneous carbonization treatment of wood at high temperature without any chemical agent, which makes the wood less likely to absorb water, resistant to moisture, and stable in material. By setting the panel 1 and the back panel 3 made of carbonized wood, the problem of easy cracking of the door panel surface is solved.

[0053] Reference Figure 2 , Figure 3 The middle plate 2 includes a core plate 201 and a frame 202 surrounding the core plate 201. The core plate 201 is a density board, and the frame 202 is a solid wood board. The side of the frame 202 close to the core plate 201 includes a plug-in 221 protruding toward the direction close to the core plate 201, and the side of the core plate 201 close to the frame 202 includes a slot 211 recessed into the interior of the core plate 201. The plug-in 221 is inserted into the slot 211, and the frame 202 is engaged with the core plate 201.

[0054] In the prior art, when the middle plate is a single solid wood keel or a density board keel, the middle plate is easily warped and deformed due to the internal stress because the surface plate needs to be milled. In this embodiment, the solid wood frame 202 and the density board core plate 201 are spliced ​​by mortise and tenon, and the frame 202 and the core plate 201 are connected by the plug 221 and the slot 211. When the surface plate 1 is milled and shaped, the influence of the internal stress deformation on the middle plate 2 is reduced, the flatness of the keel is increased, and the deformation problem of the door plate is solved.

[0055] Reference Figure 2 , Figure 3 , Figure 4 The frame 202 includes an upper frame 21, a left frame 22, a lower frame 23 and a right frame 24 connected in sequence, and the upper frame 21, the left frame 22, the lower frame 23 and the right frame 24 are respectively provided with an upper plug-in, a left plug-in 220, a lower plug-in and a right plug-in (the upper plug-in, the lower plug-in and the right plug-in are not shown in the figure) protruding toward the direction close to the core board; the slot 211 includes an upper slot, a left slot 210, a lower slot and a right slot (the upper slot, the lower slot and the right slot are not shown in the figure), and the upper plug-in, the left plug-in 220, the lower plug-in and the right plug-in are respectively inserted into the upper slot, the left slot 210, the lower slot and the right slot.

[0056] Specifically, along the front-to-back direction Z, the cross-section of the plug-in 221 is a rectangle, that is, the cross-sections of the upper plug-in, the left plug-in 220, the lower plug-in and the right plug-in are all rectangles, and the upper plug-in, the left plug-in 220, the lower plug-in and the right plug-in are all cuboids; when the cross-sections of the upper plug-in, the left plug-in 220, the lower plug-in and the right plug-in are all cuboids, taking the left plug-in 220 as an example, only one left plug-in 220 can be set on the left frame 22, and the left plug-in 220 is a plug-in strip extending along the up-down direction Y, and the length of the left plug-in 220 is slightly smaller than the length of the core board 201, or the left frame 22 can include a plurality of left plug-ins 220 spaced apart along the up-down direction Y, Figure 4 Only the cross section of the left plug-in 220 is shown as a rectangle as an example; along the front-to-back direction Z, the cross section of the slot 211 is a rectangle, that is, the cross sections of the upper slot, the left slot 210, the lower slot and the right slot are all rectangular. Figure 4 Only the cross section of the left slot 210 is shown as a rectangle as an example.

[0057] Specifically, refer to Figure 2 , along the direction parallel to the plane where the middle plate 2 is located, the cross-sections of the upper frame 21, the left frame 22, the lower frame 23 and the right frame 24 are trapezoidal; when the cross-sections of the upper frame 21, the upper frame 22, the lower frame 23 and the right frame 24 are trapezoidal, and when the widths of the upper frame 21, the upper frame 22, the lower frame 23 and the right frame 24 are equal along the up-down direction Y, or along the left-right direction X, the trapezoid is an isosceles trapezoid, and the base angles of the trapezoid are all 45°, Figure 2 In the figure, only the upper frame 21, the upper frame 22, the lower frame 23 and the right frame 24 are spliced ​​at a 45° angle as an example.

[0058] Along the up-down direction Y, the length of the upper plug-in is less than or equal to the depth of the upper slot, and the length of the lower plug-in is less than or equal to the depth of the lower slot. Along the left-right direction X, the length of the left plug-in 220 is less than or equal to the depth of the left slot 210, and the length of the right plug-in is less than or equal to the depth of the right slot.

[0059] Optionally, when the length of the plug-in 221 is equal to the depth of the slot 211, the plug-in 221 is fully engaged with the slot 211; when the length of the plug-in 221 is less than the depth of the slot 211, the plug-in 221 is inserted into the slot 211 after filling the gap with wood glue, thereby improving the connection stability between the plug-in 221 and the slot 211. Figure 4 In the figure, only when the upper frame 22 is spliced ​​with the core board 201 , along the left-right direction X, the length of the left plug-in 220 is smaller than the depth of the left slot 210 is used as an example.

[0060] It should be noted that the assembly method of the composite door panel 100 provided in this embodiment is: first, the upper frame 21, the left frame 22, the lower frame 23 and the right frame 24 are respectively inserted into the upper, lower, left and right of the core panel 201, and the plug-in 221 of the frame 202 is engaged with the slot 211 of the core panel 201, and then the connection between the upper frame 21, the left frame 22, the lower frame 23 and the right frame 24 is glued and bonded to complete the splicing of the middle panel 2; then the surface panel 1, the middle panel 2 and the back panel 3 are bonded in turn; finally, the edge banding strips (not shown in the figure) are bonded to the upper, lower, left and right sides of the composite door panel 100 to complete the assembly of the composite door panel 100.

[0061] The composite door panel 100 provided in this embodiment achieves at least the following beneficial effects: a plurality of grooves 11 are provided on the side of the front panel 1 away from the back panel 3, which are sunken toward the back panel 3. The composite door panel 100 is more beautiful by milling the surface. Both the front panel 1 and the back panel 3 are carbonized wood boards, which solves the problem of easy cracking on the door panel surface. The density board core board 201 is mortised and spliced ​​with the solid wood frame 202 to form the middle board 2, which reduces the influence of the internal stress deformation of the front panel 1 milling on the middle board 2, increases the flatness of the keel, and solves the problem of door panel deformation.

[0062] Embodiment 2

[0063] Reference Figure 1 , Figures 5 to 7 , a composite door panel 100 provided in this embodiment includes a surface panel 1, a middle panel 2 and a back panel 3 connected in sequence along a front-to-back direction Z;

[0064] The surface plate 1 and the back plate 3 are both made of carbonized wood. The surface plate 1 is provided with a plurality of grooves 11 on the side away from the back plate 3 and concave toward the back plate 3.

[0065] The middle plate 2 includes a core plate 201 and a frame 202 surrounding the core plate 201, wherein the core plate 201 is a density board and the frame 202 is a solid wood board; the frame 202 includes a plug-in 221 protruding toward the core plate 201 on one side close to the core plate 201, and the core plate 201 includes a slot 211 recessed toward the inside of the core plate 201 on one side close to the frame 202, wherein the plug-in 221 is inserted into the slot 211, and the frame 202 is engaged with the core plate 201;

[0066] The frame 202 includes an upper frame 21, a left frame 22, a lower frame 23 and a right frame 24 connected in sequence; the plug-in 221 of the upper frame 21 protruding in the direction close to the core board 201 is an upper plug-in, and the slot 211 of the core board 201 close to the upper frame 21 is an upper slot, and the upper plug-in is inserted into the upper slot; the plug-in 221 of the left frame 22 protruding in the direction close to the core board 201 is a left plug-in 220, and the slot 211 of the core board 201 close to the left frame 22 is a left slot 210, and the left plug-in 220 is inserted into the left slot 210; the plug-in 221 of the lower frame 23 protruding in the direction close to the core board 201 is a lower plug-in, and the core board The slot 211 of 201 close to the lower frame 23 is the lower slot, and the lower plug-in is inserted into the lower slot; the plug-in 221 protruding from the right frame 24 toward the direction close to the core board 201 is the right plug-in, and the slot 211 of the core board 201 close to the right frame 24 is the right slot, and the right plug-in is inserted into the right slot; the upper plug-in, the left plug-in 220, the lower plug-in and the right plug-in are all quadrangular prisms; the upper plug-in and the lower plug-in are symmetrically arranged with the left-right direction X as the axis, and the left plug-in 220 and the right plug-in are symmetrically arranged with the upper-lower direction Y as the axis; the upper-lower direction Y is the direction from the upper frame 21 to the lower frame 23, and the left-right direction X is the direction from the upper frame 22 to the right frame 24;

[0067] Along the up-down direction Y, the length of the upper plug-in is less than or equal to the depth of the upper slot, the length of the lower plug-in is less than or equal to the depth of the lower slot, along the left-right direction X, the length of the left plug-in 220 is less than or equal to the depth of the left slot 210, and the length of the right plug-in is less than or equal to the depth of the right slot; along the direction parallel to the plane where the middle plate 2 is located, the cross-sections of the upper frame 21, the upper frame 22, the lower frame 23 and the right frame 24 are rectangular.

[0068] It should be noted that, refer to Figure 2 , Figure 6 , Figure 7 The frame 202 includes an upper frame 21, a left frame 22, a lower frame 23 and a right frame 24 connected in sequence, and the upper frame 21, the left frame 22, the lower frame 23 and the right frame 24 are respectively provided with an upper plug-in, a left plug-in 220, a lower plug-in and a right plug-in (the upper plug-in, the lower plug-in and the right plug-in are not shown in the figure) protruding toward the direction close to the core board; the slot 211 includes an upper slot, a left slot 210, a lower slot and a right slot (the upper slot, the lower slot and the right slot are not shown in the figure), and the upper plug-in, the left plug-in 220, the lower plug-in and the right plug-in are respectively inserted into the upper slot, the left slot 210, the lower slot and the right slot.

[0069] Optionally, along the front-to-back direction Z, the cross-sections of the left plug-in 220, the right plug-in, the left slot 210, and the right slot are isosceles trapezoids, and the cross-sections of the upper plug-in, the lower plug-in, the upper slot, and the lower slot are rectangles; or, along the front-to-back direction, the cross-sections of the left plug-in 220, the right plug-in, the left slot 210, and the right slot are rectangles, and the cross-sections of the upper plug-in, the lower plug-in, the upper slot, and the lower slot are isosceles trapezoids.

[0070] Specifically, refer to Figure 6 In this embodiment, along the front-to-back direction Z, the cross-sections of the left plug-in 220, the right plug-in, the left slot 210, and the right slot are isosceles trapezoids, and the cross-sections of the upper plug-in, the lower plug-in, the upper slot, and the lower slot are rectangular; in this embodiment, only one left plug-in 220 is provided on the left frame 22, and the left plug-in 220 is a plug-in strip extending along the up-down direction Y, with the up-down direction Y as the axis, and the right plug-in and the left plug-in are symmetrically arranged; only one upper plug-in extending along the left-right direction X can be provided on the upper frame 21, and multiple upper plug-ins can also be provided on the upper frame 21 at intervals along the left-right direction X, with the left-right direction X as the axis, and the lower plug-in and the upper plug-in are symmetrically arranged; Figure 6 Only the cross-sections of the left plug-in 220 and the left slot 210 are shown as isosceles trapezoids as an example, and the upper plug-in, lower plug-in, right plug-in and the upper slot, lower slot, and right slot are not shown.

[0071] Specifically, the slot 211 includes a bottom edge 2011 and a side edge 2012. Figure 6 Taking the middle left slot 210 as an example, the angle α between the bottom edge 2011 and the side edge 2012 is an acute angle, preferably, 30°≤α≤60°, and α can be any value within the above range; if α is too small, it is not convenient to make the plug-in 221; if α is too small, the plug-in 221 is not convenient to make; if α is too large, it cannot prevent the plug-in 221 from escaping from the slot 211. Therefore, the bottom edge 2011 and the side edge 2012 are set between 30°-60°, which can prevent the plug-in 221 from escaping from the slot 211 while facilitating the production of the plug-in 221.

[0072] The assembly method of the composite door panel 100 provided in this embodiment is: first, push the left plug-in 220 of the left frame 22 from one end of the core panel 201 along the up-down direction Y into the left slot 210 of the core panel 201, push the right plug-in of the right frame 24 from one end of the core panel 201 along the up-down direction Y into the right slot of the core panel 201, and then insert the upper plug-in of the upper frame 21 and the lower plug-in of the lower frame 23 into the upper slot and the lower slot of the core panel 201 respectively, the frame 202 is engaged with the core panel 201, and then glue the joints of the upper frame 21, the left frame 22, the lower frame 23 and the right frame 24 to complete the splicing of the middle panel 2; then glue the surface panel 1, the middle panel 2 and the back panel 3 in sequence; finally, glue the edge banding strips (not shown in the figure) on the upper, lower, left and right sides of the composite door panel 100 to complete the assembly of the composite door panel 100.

[0073] Reference Figure 5 When the cross-sections of the upper frame 21, the upper frame 22, the lower frame 23 and the right frame 24 are rectangular, the upper frame 21, the upper frame 22, the lower frame 23 and the right frame 24 are spliced ​​at right angles. Figure 5In the figure, only the upper frame 21, the upper frame 22, the lower frame 23 and the right frame 24 are spliced ​​at right angles as an example.

[0074] The composite door panel 100 provided in this embodiment has a plurality of grooves 11 that are recessed toward the back panel 3 on the side of the front panel 1 away from the back panel 3, and the composite door panel 100 is made more beautiful by milling the surface. Both the front panel 1 and the back panel 3 are carbonized wood boards, which solves the problem of easy cracking on the door panel surface. The density board core board 201 is spliced ​​with the solid wood frame 202 to form the middle panel 2, which reduces the influence of the internal stress deformation of the front panel 1 milling on the middle panel 2, increases the flatness of the keel, and solves the problem of door panel deformation.

[0075] Optionally, along the front-to-back direction Z, the thickness d1 of the surface panel 1 is between 3mm-8mm, the thickness d2 of the middle panel 2 is between 10mm-15mm, the thickness of the back panel 3 is between 3mm-8mm, and the front-to-back direction Z is the direction from the surface panel 1 to the back panel 3.

[0076] Specifically, the thickness d1 of the panel 1 can be 3mm, 4mm, 5mm, 6mm, 7mm or 8mm. The thickness d1 of the panel 1 can also be any other value within the above range, which is not specifically limited here. When the thickness d1 of the panel 1 is less than 3mm, the panel 1 is too thin, which may cause the door panel to crack when the panel 1 surface is milled. When the thickness d1 of the panel 1 is greater than 8mm, the panel 1 is too thick, which increases the cost and causes the overall thickness of the composite door panel 100 to be too thick. Therefore, the thickness d1 of the panel 1 is between 3mm and 8mm, which can avoid the problem of cracking of the panel 1 when the panel 1 surface is milled and does not increase the cost. Preferably, the thickness of the panel 1 is 5mm.

[0077] The thickness d2 of the middle plate 2 can be 10mm, 11mm, 12mm, 13mm, 14mm or 15mm. The thickness d2 of the middle plate 2 can also be any other value within the above range, which is not specifically limited here. When the thickness d2 of the middle plate 2 is less than 10mm, the middle plate 2 is too thin. When the surface of the surface plate 1 is milled, the middle plate 2 is easily warped and deformed due to the influence of internal stress. When the thickness d2 of the middle plate 2 is greater than 15mm, the middle plate 2 is too thick, which increases the cost and causes the overall thickness of the composite door panel 100 to be too thick. Therefore, the thickness d2 of the middle plate 2 is between 10mm and 15mm, which can avoid the problem of warping and deformation of the middle plate 2 when the surface of the surface plate 1 is milled, and will not increase the cost. Preferably, the thickness of the middle plate 2 is 12mm.

[0078] The thickness d3 of the back panel 3 can be 3mm, 4mm, 5mm, 6mm, 7mm or 8mm. The thickness of the back panel 3 can also be any other value within the above range, which is not specifically limited here. When the thickness d3 of the back panel 3 is less than 3mm, the back panel 3 is too thin, which may easily cause the back panel 3 to crack. When the thickness d3 of the back panel 3 is greater than 8mm, the back panel 3 is too thick, which increases the cost and causes the overall thickness of the composite door panel 100 to be too thick. Therefore, the thickness d3 of the back panel 3 is between 3mm and 8mm, which can avoid the problem of cracking of the back panel 3 and does not increase the cost. Preferably, the thickness of the back panel 3 is 5mm.

[0079] Optionally, the groove 11 is a strip groove 11, the groove 11 extends along the up-down direction Y, and multiple grooves 11 are arranged along the left-right direction X; along the left-right direction X, the width of the groove 11 is between 5mm-15mm, and the distance between two adjacent grooves 11 is between 5mm-15mm.

[0080] Specifically, Figure 1 Taking the groove 11 as a strip groove 11 extending along the up-down direction Y as an example, along the left-right direction X, the width of the groove 11 can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm or 15mm, and the width of the groove 11 can also be any other value within the above range, which is not specifically limited here; when the width of the groove 11 is less than 5mm, the width of the groove 11 is too narrow, it is easy to hide dust and inconvenient to clean, when the width of the groove 11 is greater than 15mm, the width of the groove 11 is too wide, the number of grooves 11 that can be set is too small, the natural texture effect of the wooden door panel cannot be reflected, and it is not beautiful. Therefore, the width of the groove 11 is between 5mm-15mm, which reflects the natural texture effect of the wooden door panel while also being easy to clean.

[0081] The distance between two adjacent grooves 11 can also be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm or 15mm. The distance between two adjacent grooves 11 can also be any other value within the above range, which is not specifically limited here. When the distance between two adjacent grooves 11 is less than 5mm, the board between the two adjacent grooves 11 is too narrow and easy to crack. When the distance between two adjacent grooves 11 is greater than 15mm, the distance between two adjacent grooves 11 is too wide, and the number of grooves 11 that can be set is too small, which cannot reflect the natural texture effect of the wooden door board and is not beautiful. Therefore, the width of the distance between two adjacent grooves 11 is between 5mm-15mm, which reflects the natural texture effect of the wooden door board without making the board easy to crack.

[0082] Embodiment 3

[0083] Reference Figures 1 to 4The composite door panel 100 provided in this embodiment comprises a surface panel 1, a middle panel 2 and a back panel 3 connected in sequence along the front-to-back direction Z; the surface panel 1 and the back panel 3 are both carbonized wood panels, and a plurality of grooves 11 are provided on the side of the surface panel 1 away from the back panel 3 and concave toward the back panel 3;

[0084] The middle plate 2 includes a core plate 201 and a frame 202 surrounding the core plate 201, wherein the core plate 201 is a density board and the frame 202 is a solid wood board; the frame 202 includes a plug-in 221 protruding toward the core plate 201 on one side close to the core plate 201, and the core plate 201 includes a slot 211 recessed toward the inside of the core plate 201 on one side close to the frame 202, wherein the plug-in 221 is inserted into the slot 211, and the frame 202 is engaged with the core plate 201;

[0085] The frame 202 includes an upper frame 21, a left frame 22, a lower frame 23 and a right frame 24 connected in sequence; the plug-in 221 of the upper frame 21 protruding in the direction close to the core board 201 is an upper plug-in, and the slot 211 of the core board 201 close to the upper frame 21 is an upper slot, and the upper plug-in is inserted into the upper slot; the plug-in 221 of the left frame 22 protruding in the direction close to the core board 201 is a left plug-in 220, and the slot 211 of the core board 201 close to the left frame 22 is a left slot 210, and the left plug-in 220 is inserted into the left slot 210; the plug-in 221 of the lower frame 23 protruding in the direction close to the core board 201 is a lower plug-in, and the core board The slot 211 of 201 close to the lower frame 23 is the lower slot, and the lower plug-in is inserted into the lower slot; the plug-in 221 protruding from the right frame 24 toward the direction close to the core board 201 is the right plug-in, and the slot 211 of the core board 201 close to the right frame 24 is the right slot, and the right plug-in is inserted into the right slot; the upper plug-in, the left plug-in 220, the lower plug-in and the right plug-in are all quadrangular prisms; the upper plug-in and the lower plug-in are symmetrically arranged with the left-right direction X as the axis, and the left plug-in 220 and the right plug-in are symmetrically arranged with the upper-lower direction Y as the axis; the upper-lower direction Y is the direction from the upper frame 21 to the lower frame 23, and the left-right direction X is the direction from the upper frame 22 to the right frame 24;

[0086] In the up-down direction Y, the length of the upper plug-in is less than or equal to the depth of the upper slot, the length of the lower plug-in is less than or equal to the depth of the lower slot, and in the left-right direction X, the length of the left plug-in 220 is less than or equal to the depth of the left slot 210, and the length of the right plug-in is less than or equal to the depth of the right slot;

[0087] Along the direction parallel to the plane where the table panel 1 is located, the cross-sections of the upper frame 21, the left frame 22, the lower frame 23 and the right frame 24 are all trapezoidal, and the bottom angles of the trapezoids are all 45°.

[0088] The composite door panel 100 provided in this embodiment has a plurality of grooves 11 that are recessed toward the back panel 3 on the side of the front panel 1 away from the back panel 3, and the composite door panel 100 is made more beautiful by milling the surface. Both the front panel 1 and the back panel 3 are carbonized wood boards, which solves the problem of easy cracking on the door panel surface. The density board core board 201 is mortised and spliced ​​with the solid wood frame 202 to form the middle board 2, which reduces the influence of the internal stress deformation of the front panel 1 milling on the middle board 2, increases the flatness of the keel, and solves the problem of door panel deformation.

[0089] Optionally, along the up-down direction Y or along the left-right direction X, the width of the frame 202 is between 40 mm and 60 mm.

[0090] Specifically, the width of the frame 202 can be 40mm, 42mm, 45mm, 47mm, 49mm, 51mm, 53mm, 55mm, 56mm, 58mm or 60mm. The width of the frame 202 can also be any other value within the above range, which is not specifically limited here. When the width of the frame 202 is less than 40mm, the frame 202 is too narrow, and the bonding area at the joints of the upper frame 21, the upper frame 22, the lower frame 23 and the right frame 24 is small and easy to crack. When the width of the frame 202 is greater than 60mm, the frame 202 is too wide, which increases the cost of solid wood. Therefore, the width of the frame 202 is between 40mm-60mm, which ensures that the bonding of the frame 202 is stable without increasing the cost.

[0091] Optionally, along the left-right direction X, the length of the plug 221 of the upper frame 22 is between 5 mm and 10 mm, and the depth of the slot 211 is between 6 mm and 12 mm;

[0092] Specifically, the length of the plug-in 221 of the upper frame 22 can be 5mm, 6mm, 7mm, 8mm, 9mm or 10mm, and the length of the plug-in 221 of the upper frame 22 can also be any other value within the above range, which is not specifically limited here. When the length of the plug-in 221 of the upper frame 22 is less than 5mm, the plug-in 221 is too narrow, and the plug-in 221 and the slot 211 are not stably engaged. When the length of the plug-in 221 of the upper frame 22 is greater than 10mm, the plug-in 221 is too long and easy to break, and the board material required to be cut to prepare the plug-in 221 is too much, which increases the cost. Therefore, the length of the plug-in 221 of the upper frame 22 is between 5mm-10mm, which ensures that the plug-in 221 and the slot 211 are stably engaged without increasing the cost. Similarly, along the left-right direction X, the length of the plug-in 221 of the right frame 24 is between 5mm-10mm; along the up-down direction Y, the length of the plug-in 221 of the upper frame 21 and the plug-in 221 of the lower frame 23 are between 5-10mm.

[0093] Specifically, the depth of the slot 211 may be 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm or 12 mm, and the depth of the slot 211 may also be any other value within the above range, which is not specifically limited here. To facilitate the insertion of the plug-in 221 into the slot 211, the depth of the slot 211 is greater than or equal to the length of the plug-in 221. When the length of the plug-in 221 is between 5 mm and 10 mm, the depth of the slot 211 is between 6 mm and 12 mm.

[0094] Embodiment 4

[0095] Combination Figures 1 to 8 To illustrate a specific embodiment of the door 1000 provided by the utility model, Figure 8 It is a schematic diagram of the door 1000 provided in this embodiment.

[0096] The present embodiment provides a door 1000, which includes a door frame structure 200, a composite door panel 100 fixedly connected to the door frame structure 200, a door lock 300 installed on the composite door panel 100, and the composite door panel 100 is the composite door panel 100 described in any of the above embodiments.

[0097] Specifically, the composite door panel 100 is fixedly connected to the door frame structure 200 through a hinge (not shown in the figure). The composite door panel 100 includes a front panel 1, a middle panel 2 and a back panel 3 connected in sequence along the front-back direction Z; the front panel 1 and the back panel 3 are both carbonized wood boards, and the side of the front panel 1 away from the back panel 3 is provided with a plurality of grooves 11 that are recessed in the direction close to the back panel 3; the middle panel 2 includes a core board 201 and a frame 202 surrounding the core board 201, the core board 201 is a density board, and the frame 202 is a solid wood board; the side of the frame 202 close to the core board 201 includes a plug-in 221 protruding in the direction close to the core board 201, and the side of the core board 201 close to the frame 202 includes a slot 211 recessed in the inside of the core board 201, the plug-in 221 is inserted into the slot 211, and the frame 202 is engaged with the core board 201.

[0098] The door lock 300 can be an aluminum alloy door lock, a stainless steel door lock or a copper lock etc. available on the market.

[0099] A door panel 1000 provided in this embodiment includes a composite door panel 100. The composite door panel 100 is provided with a plurality of grooves 11 on the side of the front panel 1 away from the back panel 3, which are recessed toward the back panel 3. The surface is milled to shape the door 1000, making it more beautiful. Both the front panel 1 and the back panel 3 are carbonized wood boards, which solves the problem of easy cracking on the surface of the door panel. The density board core board 201 is spliced ​​with the solid wood frame 202 to form the middle board 2, which reduces the influence of the internal stress deformation of the front panel 1 milling on the middle board 2, increases the flatness of the keel, and solves the problem of door panel deformation.

[0100] It can be seen from the above embodiments that the composite door panel and door provided by the utility model achieve at least the following beneficial effects:

[0101] The utility model provides a composite door panel and door, the composite door panel comprises a surface panel, a middle panel and a back panel connected in sequence along the front-back direction; both the surface panel and the back panel are carbonized wood boards, and a side of the surface panel away from the back panel is provided with a plurality of grooves sunken in the direction close to the back panel; the middle panel comprises a core panel and a frame surrounding the core panel, the core panel is a density board, and the frame is a solid wood board; a side of the frame close to the core panel comprises a plug-in protruding in the direction close to the core panel, and a side of the core panel close to the frame comprises a slot sunken in the core panel, the plug-in is inserted into the slot, and the frame is engaged with the core panel. By providing a plurality of grooves sunken in the direction close to the back panel on the side of the surface panel away from the back panel, and by milling the surface to shape the shape, the composite door panel is made more beautiful. Both the surface panel and the back panel are carbonized wood boards, which solves the problem of easy cracking of the door panel surface. The density board core panel is mortised and spliced ​​with the solid wood frame to form the middle panel, which reduces the influence of the middle panel on the stress deformation caused by the milling of the surface panel, increases the flatness of the keel, and solves the problem of door panel deformation.

[0102] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A composite door panel, It is characterized in that It includes a front plate, a middle plate and a back plate which are sequentially connected along the front-back direction; The front plate and the back plate are both made of carbonized wood, and a side of the front plate away from the back plate is provided with a plurality of grooves that are sunken toward the back plate; The middle plate includes a core plate and a frame surrounding the core plate, wherein the core plate is a density board and the frame is a solid wood board; the frame includes a plug-in protruding toward the core plate on one side close to the core plate, and the core plate includes a slot recessed toward the inside of the core plate on one side close to the frame, wherein the plug-in is inserted into the slot, and the frame is engaged with the core plate; The frame includes an upper frame, a left frame, a lower frame and a right frame connected in sequence; the plug-in protruding from the upper frame in the direction close to the core board is an upper plug-in, the slot of the core board close to the upper frame is an upper slot, and the upper plug-in is inserted into the upper slot; the plug-in protruding from the left frame in the direction close to the core board is a left plug-in, the slot of the core board close to the left frame is a left slot, and the left plug-in is inserted into the left slot; the plug-in protruding from the lower frame in the direction close to the core board is a lower plug-in, the slot of the core board close to the lower frame is a lower slot, and the lower plug-in is inserted into the lower slot; the plug-in protruding from the right frame in the direction close to the core board is a right plug-in, the slot of the core board close to the right frame is a right slot, and the right plug-in is inserted into the right slot; the upper plug-in, the left plug-in, the lower plug-in and the right plug-in are all quadrangular prisms; the upper plug-in and the lower plug-in are arranged symmetrically with the left and right directions as the axis, and the left plug-in and the right plug-in are arranged symmetrically with the upper and lower directions as the axis; the upper and lower directions are the directions from the upper frame to the lower frame, and the left and right directions are the directions from the left frame to the right frame; In the up-down direction, the length of the upper plug-in is less than or equal to the depth of the upper slot, the length of the lower plug-in is less than or equal to the depth of the lower slot, and in the left-right direction, the length of the left plug-in is less than or equal to the depth of the left slot, and the length of the right plug-in is less than or equal to the depth of the right slot; Along the direction parallel to the plane where the panel is located, the cross-sections of the upper frame, the left frame, the lower frame and the right frame are all trapezoidal, and the bottom angles of the trapezoids are all 45°, or, Along a direction parallel to the plane where the table panel is located, the cross-sections of the upper frame, the left frame, the lower frame and the right frame are rectangular.

2. The composite door panel according to claim 1, It is characterized in that Along the front-to-back direction, the cross-sections of the plug-in and the slot are rectangular.

3. The composite door panel according to claim 1, It is characterized in that Along the front-to-back direction, the cross-sections of the left plug-in, the right plug-in, and the left slot and the right slot are isosceles trapezoids, and the cross-sections of the upper plug-in, the lower plug-in, the upper slot and the lower slot are rectangles; or, Along the front-to-back direction, the cross-sections of the left plug-in, the right plug-in, and the left slot and the right slot are rectangular, and the cross-sections of the upper plug-in, the lower plug-in, the upper slot and the lower slot are isosceles trapezoidal.

4. The composite door panel according to claim 1, It is characterized in that Along the front-to-back direction, the thickness of the surface plate is between 3mm-8mm, the thickness of the middle plate is between 10mm-15mm, and the thickness of the back plate is between 3mm-8mm.

5. The composite door panel according to claim 1, It is characterized in that Along the left-right direction, the width of the groove is between 5mm and 15mm, and the distance between two adjacent grooves is between 5mm and 15mm.

6. The composite door panel according to claim 1, It is characterized in that Along the up-down direction, or along the left-right direction, the width of the frame is between 40 mm and 60 mm.

7. The composite door panel according to claim 1, It is characterized in that Along the left-right direction, or along the up-down direction, the length of the plug-in is between 5 mm and 10 mm, and the depth of the slot is between 6 mm and 12 mm.

8. The composite door panel according to claim 1, It is characterized in that Along the direction parallel to the plane where the surface plate is located, the cross-section of the groove is a quadrilateral, a circle, a sector or an irregular shape.

9. The composite door panel according to claim 1, It is characterized in that The surface plate, the middle plate and the back plate are bonded in sequence by white latex.

10. A door, It is characterized in that It comprises a door frame structure and a composite door panel, wherein the composite door panel is fixedly connected to the door frame structure, a door lock is installed on the composite door panel, and the composite door panel is any one of claims 1-9.

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