Floor sheet

Abstract

The invention relates to the technical field of floors, in particular to a floor sheet. The floor sheet comprises a body, an upper surface, a lower surface, a side face, a first connecting part, a second connecting part, a groove body, a groove row and the like. A plurality of groove rows are formed in the lower surface of the floor, the groove rows are arranged at intervals to form similar reinforcing ribs, and meanwhile groove bodies in the groove rows do not directly penetrate through the lower surface but are independent of one another, so that stress distribution can be changed through the structure, stress is more evenly dispersed in the structure, the compressive strength is enhanced, and the service life of the floor is prolonged. The problems that in the weight reduction process of an existing floor, the mechanical property is affected, and the existing floor expands due to moisture absorption are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of flooring, in particular to a floor sheet. Background Art

[0002] Flooring is an essential component of interior design. It covers the ground, providing comfort and aesthetics. Flooring comes in a variety of materials, including solid wood flooring, laminate flooring, engineered wood flooring, stone-plastic flooring, and ceramic tiles.

[0003] Traditional flooring is often heavy, increasing building loads and transportation costs. Furthermore, flooring tends to absorb moisture and swell in humid environments, causing deformation and buckling, which shortens its service life. Furthermore, to meet usage requirements, flooring must maintain sufficient mechanical strength.

[0004] Existing technologies have been developed to address this issue, for example, by replacing traditional solid wood with lightweight materials such as polyvinyl chloride (PVC) and bamboo, or by reducing the weight through structural design. However, thinning the floor can easily lead to a decrease in local strength, and may cause cracking or deformation after long-term use.

[0005] The problems existing in the above technologies have brought certain impacts on the use of the floor. Therefore, it is urgent to propose a floor that can reduce the weight of the floor while maintaining its own mechanical properties. Summary of the Invention

[0006] The purpose of this application is to provide a floor sheet to solve the problems existing in the prior art.

[0007] Specifically, the first aspect of the present invention provides a floor piece, including a main body, a first connecting part and a second connecting part, the first connecting part and the second connecting part are respectively arranged at opposite ends of the main body, the first connecting part is used to be combined with the second connecting part of another piece of the floor piece, the main body includes an upper surface, a lower surface and a side surface, the side surface extends along the length direction, the side surface connects the upper surface, the lower surface, the first connecting part and the second connecting part, and the thickness of the floor piece is between the upper surface and the lower surface.

[0008] The floor sheet further includes: a plurality of groove rows, the groove rows extending along the length direction, the plurality of groove rows being spaced apart from each other on the lower surface, the groove rows comprising a plurality of independent groove bodies, the groove bodies comprising a groove opening, a groove top opposite to the groove opening, and a groove peripheral wall connecting the groove opening and the groove top; wherein, the ratio of the long side to the short side of the minimum circumscribed rectangle of the groove opening is 2:1 to 10:1, and the extension direction of the groove peripheral wall forms an acute angle with the lower surface. With the arrangement of this structure, demoulding can be better performed, damage to the groove can be avoided, and support can be better formed; wherein, the positions of the plurality of groove bodies in the groove row are staggered or aligned in the width direction relative to the positions of the plurality of groove bodies in the adjacent groove rows, and the width direction is perpendicular to the length direction.

[0009] By providing several rows of grooves on the lower surface of the floor, with distances between the rows, similar reinforcement ribs are formed. At the same time, the groove bodies in the groove rows do not directly penetrate the lower surface, but are independent of each other. This structure can change the stress distribution, make the stress more evenly dispersed in the structure, and enhance the compressive strength.

[0010] In some embodiments, the floor sheet is a stone-plastic composite floor sheet, and the several groove bodies are opened on the lower surface through a molding process. The positions of the groove bodies in the groove row are offset in the width direction relative to the positions of the adjacent groove bodies in the adjacent groove row by 30% to 80% of the length of the groove body. The staggered arrangement can improve the lateral stiffness of the structure, thereby effectively improving the stability of the structure when under pressure.

[0011] In some embodiments, the body comprises a stone-plastic composite material and a membrane, the membrane covers and adheres to the stone-plastic composite material, the upper surface is the surface of the membrane, and the lower surface is the surface of the stone-plastic composite material.

[0012] In some embodiments, the groove peripheral wall of the groove body includes a long side wall along the length direction and a short side wall along the width direction, wherein the extension direction of the long side wall forms a first angle with the lower surface, and the first angle ranges from 45° to 85°; or, the short side wall forms a second angle with the lower surface, and the second angle ranges from 45° to 75°. The setting of this angle can ensure that the mold on the rolling wheel can better enter and exit the lower surface during molding.

[0013] In some embodiments, the distance between the side surface and the adjacent groove row is 1 cm to 2 cm.

[0014] In some embodiments, the first connecting portion is a groove, and the connection between the groove and the body is projected onto the lower surface to form a first connecting line, and the distance between the first connecting line and the groove row is 1 cm to 2 cm. Alternatively, the second connecting portion is a convex portion, and the connection between the convex portion and the body is projected onto the lower surface to form a second connecting line, and the distance between the second connecting line and the groove row is 1 cm to 2 cm. This structure allows the wood panels to maintain their thickness during locking, ensuring the locking strength of the thick edge of the locking area.

[0015] In some embodiments, the distance between the groove top and the upper surface is 1 / 4 to 1 / 2 of the thickness of the flooring sheet; or, the ratio of the distance between the groove top and the upper surface to the width of the groove opening in the width direction is greater than or equal to 1 / 2. This structure maintains the surface material stability of the wood sheet, thereby preventing cracks or grooves from appearing on the surface.

[0016] In some embodiments, the shape of the groove mouth or the shape of the bottom of the groove body is a long strip along the length direction, and the shape of the groove mouth or the shape of the bottom of the groove body is any one of a rectangle, a spindle, an ellipse, a polygon, and a capsule. It is further preferred to select a rectangle. When the shape is a rectangle, it is easy to operate and manufacture.

[0017] In some embodiments, the longitudinal cross-sectional shape of the groove body along the length direction is composed of straight lines and / or curves, and the cross-sectional shape of the groove body along the width direction is any one of a trapezoid, a V-shape, a semi-ellipse, and a semicircle.

[0018] In some embodiments, the ratio of the total area of ​​the plurality of groove openings of the plurality of groove rows to the area of ​​the upper surface is 1:1 to 1:1.5. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 is a schematic diagram of a wood board according to an embodiment of the present invention; Figure 2 This is a bottom view of an embodiment of the present invention in which grooves are neatly arranged; Figure 3 A bottom view of a staggered arrangement of grooves in an embodiment of the present invention; Figure 4 A partial schematic diagram of a wood board in an embodiment of the present invention; Figure 5 Another schematic diagram of a wood board according to an embodiment of the present invention; Figure 6 It is a partial structural diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0022] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] At the same time, “adjacent” is not limitedly interpreted as the minimum effective distance between two structures without interference from other structures.

[0024] See also Figures 1-4 The floor sheet of the embodiment of the present invention includes a main body 1, an upper surface 1a, a lower surface 1b, a side surface 1c, a first connecting portion 2, a second connecting portion 3, a groove body 4, a groove row 7 and other parts.

[0025] According to different application scenarios, the material of the floor sheet is selected from solid wood flooring, laminate flooring, solid wood composite flooring, stone plastic flooring, ceramic tile, etc., but the material in this embodiment is stone plastic flooring, and the thickness is 4 to 10 mm, and the thickness varies according to different uses.

[0026] like Figure 1The floor sheet shown in the figure includes a body 1, a first connecting portion 2 and a second connecting portion 3, the first connecting portion 2 and the second connecting portion 3 are respectively arranged at opposite ends of the body 1, the first connecting portion 2 is used to combine with the second connecting portion 3 of another floor sheet, and the combination of the two is used to achieve the laying of the floor sheet. The body 1 includes an upper surface 1a, a lower surface 1b and a side surface 1c, and the side surface 1c extends along the length direction. The side surfaces 1c are usually provided with two and opposite to each other. In this embodiment, the length direction can be understood as the direction from the first connecting portion 2 to the second connecting portion 3 or from the second connecting portion 3 to the first connecting portion 2, and the width direction can be understood as the direction from one side surface 1c to the opposite side surface 1c. c connects the upper surface 1a, the lower surface 1b, the first connecting portion 2 and the second connecting portion 3. The thickness of the floor sheet is between the upper surface 1a and the lower surface 1b. A uniformly distributed row of grooves 7 is provided on the lower surface 1b. The row of grooves 7 extends along the length direction. The row of grooves 7 is spaced apart from each other on the lower surface 1b. There is one or more rows of grooves 7. At least one row of grooves 7 is formed by independent groove bodies 4 arranged in sequence along the length direction. Due to the independent groove bodies 4, the external pressure can be well dispersed. At the same time, due to the presence of the groove bodies 4, the contact area between the lower surface 1b and the bonding surface is reduced, the water absorption rate is reduced, and the space between the groove bodies 4 is utilized to reduce the water absorption expansion rate.

[0027] Among them, the ratio of the long side to the short side of the minimum circumscribed rectangle of the groove opening 43 is 2:1 to 10:1. This structure can effectively change the stress distribution, stiffness, weight distribution and interaction with the contact surface. The extension direction of the groove peripheral wall 42 forms an acute angle 6 with the lower surface 1b. In this case, the surface mold of the pressure roller wheel can achieve good embossing and demolding effects.

[0028] The positions of the groove bodies 4 in a groove row 7 are staggered or aligned in the width direction relative to the positions of the groove bodies 4 in an adjacent groove row 7 , and the width direction is perpendicular to the length direction.

[0029] For example, Figure 2 or Figure 3 The positions of the groove bodies 4 in the groove row 7 shown are offset in the width direction relative to the positions of the adjacent groove bodies 4 in the adjacent groove row 7 by an offset e of 30% to 80% of the length of the groove body 4 .

[0030] For example, Figure 2 As shown, when the offset e is 0% of the length of the groove body 4, the groove rows 7 are arranged neatly, the spacing between adjacent groove bodies 4 in the same row is d, and the spacing between two adjacent groove rows 7 is c. When aligned, the neatly arranged groove bodies 4 can evenly transfer the load along the plate, reducing the risk of deformation or fracture due to local stress concentration.

[0031] For example, Figure 3 As shown, when the offset e is greater than 0% of the length of the groove body 4, the groove row 7 is staggered. The staggered arrangement breaks the continuity of stress transfer, disperses the concentrated load to multiple asymmetric support points, reduces local stress peaks, delays crack propagation, and at the same time, maintains overall stiffness while reducing weight.

[0032] In the embodiment, the spacing between adjacent groove rows 7 is preferably equal, so that the floor sheet can maintain optimal flatness when deformed by heat or moisture.

[0033] For example, in this embodiment, the floor sheet is preferably made of stone plastic composite floor sheet, and the groove body 4 is opened at the lower surface 1b through a molding process, and is directly pressed into the bottom surface of the stone plastic composite floor on the extrusion line. The depth can reach 2 / 3 to 3 / 4 of the target thickness of the board, which can maintain sufficient thickness around the SPC floor, thereby maintaining the high strength of the lock.

[0034] For example, Figure 4 As shown, the groove body 4 includes a groove mouth 43, a groove top 41 opposite to the groove mouth 43, a long side wall 42a along the length direction and a short side wall 42b along the width direction, the width direction is perpendicular to the length direction, the long side wall 42a is connected to the short side wall 42b, and the long side wall 42a and the short side wall 42b are respectively connected to the groove mouth 43 and the groove top 41.

[0035] For example, Figure 4 and 6 As shown, in this embodiment, the groove peripheral wall 42 of the groove body 4 includes a long side wall 42a along the length direction and a short side wall 42b along the width direction. The long side wall 42a forms a first angle 6a with the lower surface 1b in the direction of its extension, and the first angle 6a ranges from 45° to 85°. Alternatively, the short side wall 42b forms a second angle 6b with the lower surface 1b, and the second angle 6b ranges from 45° to 75°. By setting the first angle 6a and the second angle 6b, and with the maximum value of the first angle 6a at the long side wall 42a being greater than the maximum value of the second angle 6b at the short side wall 42b, the mold on the rolling wheel can better move in and out of the lower surface 1b during molding of the overall elongated groove body 4, taking into account the needs of demolding the deep groove and reducing weight, and achieving better demolding and stamping effects during stamping.

[0036] For example, Figure 2 or Figure 3 The distance between the side surface 1c and the adjacent groove row 7 is 1cm to 2cm, which can effectively ensure the mechanical strength between the stone plastic floor.

[0037] For example, Figure 1As shown, the first connecting portion 2 is a groove member, and the connection between the groove member and the main body 1 is projected onto the lower surface 1b to form a first connecting line B. The vertical distance L1 between the first connecting line B and the edge C of the adjacent groove row 7 is 1 cm to 2 cm. The length of the first connecting portion B is L2. In this embodiment, the orthographic projection of the connection between the groove member and the main body 1 can also be understood as the deepest point b of the groove member extending vertically to the upper surface 1a and the lower surface 1b, that is, the first connecting line B.

[0038] For example, Figure 1 The second connecting portion 3 shown is a convex component. The orthographic projection of the connection between the convex component and the body 1 onto the lower surface 1b forms a second connecting line E. The perpendicular distance P1 between the second connecting line E and the edge F of the adjacent groove row 7 is 1 cm to 2 cm. The length of the second connecting portion is P2. L2 and P2 are appropriately matched to maintain the flatness and strength of the floor panel edge and facilitate the installation of the lock. The edge of the groove row 7 is formed by the last groove body 4 at each end of the groove row 7. In this embodiment, the orthographic projection of the connection between the convex component and the body 1 can also be understood as the deepest point f of the convex component extending perpendicularly to the upper surface 1a and the lower surface 1b, which is the second connecting line E.

[0039] For example, the distance between the groove top 41 and the upper surface 1a is 1 / 4 to 1 / 2 of the thickness of the floor sheet; the ratio of the distance 5 between the groove top 41 and the upper surface 1a to the width of the groove opening 43 is greater than or equal to 1 / 2. For example: the distance 5 is 2mm, and the width of the groove opening 43 is less than 4mm; the distance 5 is 2.5mm, and the width of the groove opening 43 is less than 5mm; the distance 5 is 3mm, and the width of the groove opening 43 is less than 6mm. This principle can maintain the material stability of the distance 5 on the surface of the stone-plastic composite flooring board, and it is not easy to cause cracks or grooves to appear on the surface.

[0040] In some embodiments, the shape of the groove mouth 43 or the shape of the bottom of the groove body 4 is a long strip along the length direction, and the shape of the groove mouth 43 or the shape of the bottom of the groove body 4 is any one of a rectangle, spindle, ellipse, polygon, and capsule. It is further preferred to select a rectangle. When the shape is a rectangle, it is easy to operate and manufacture.

[0041] For example, the longitudinal cross-sectional shape of the groove body 4 is composed of straight lines and / or curves, and the longitudinal cross-sectional shape of the groove body 4 is any one of a trapezoid, a V-shape, a semi-ellipse, and a semi-circle, among which a trapezoid is preferred, which can effectively improve the compressive strength.

[0042] The height of the groove body 4 is 2 / 3 to 3 / 4 of the thickness, and the ratio of the total area of ​​the groove opening 43 to the area of ​​the upper surface 1a is 1:1 to 1:1.5. This design specification ensures that the groove body 4 does not affect the on-site performance of the board.

[0043] For example, Figure 5 The main body 1 shown may further include a stone-plastic composite material 8 and a membrane 9. The membrane 9 covers and adheres to the stone-plastic composite material 8. The upper surface 1a is the upper surface of the membrane 8, and the lower surface 1b is the lower surface of the stone-plastic composite material 8. By attaching the membrane 9 to the stone-plastic composite material 8, the more brittle stone-plastic composite material 8 can be pulled through the tough membrane 9, thereby improving the overall stress resistance strength of the floor sheet.

[0044] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be embraced herein. No sign in a claim should be construed as limiting the claim to which it relates.

Claims

1. A floor sheet, comprising a body, a first connecting portion, and a second connecting portion, wherein the first connecting portion and the second connecting portion are respectively disposed at opposite ends of the body, the first connecting portion being configured to be coupled to the second connecting portion of another floor sheet, the body comprising an upper surface, a lower surface, and side surfaces, the side surfaces extending in a longitudinal direction, the side surfaces connecting the upper surface, the lower surface, the first connecting portion, and the second connecting portion, the thickness of the floor sheet being between the upper surface and the lower surface, and characterized in that: Also includes: a plurality of groove rows extending along the length direction, the plurality of groove rows being spaced apart from each other and arranged on the lower surface, the groove rows comprising a plurality of independent groove bodies, the groove bodies comprising a groove opening, a groove top opposite to the groove opening, and a groove peripheral wall connecting the groove opening and the groove top; The ratio of the long side to the short side of the minimum circumscribed rectangle of the groove opening is 2:1 to 10:1, and the extension direction of the groove peripheral wall forms an acute angle with the lower surface; The positions of the plurality of groove bodies in the groove row are staggered or aligned with respect to the positions of the plurality of groove bodies in the adjacent groove row in the width direction, and the width direction is perpendicular to the length direction.

2. The floor sheet according to claim 1, wherein: The floor sheet is a stone-plastic composite floor sheet, and the plurality of groove bodies are opened on the lower surface through a molding process. The positions of the groove bodies in the groove row are offset in the width direction relative to the positions of the adjacent groove bodies in the adjacent groove row by an amount that is 30% to 80% of the length of the groove body.

3. The floor sheet according to claim 2, wherein: The body comprises a stone-plastic composite material and a diaphragm. The diaphragm covers and adheres to the stone-plastic composite material. The upper surface is the surface of the diaphragm, and the lower surface is the surface of the stone-plastic composite material.

4. The floor sheet according to claim 1, wherein: The groove peripheral wall of the groove body includes a long side wall along the length direction and a short side wall along the width direction, wherein a first angle is formed between the extension direction of the long side wall and the lower surface, and the first angle range is 45° to 85°; or, a second angle is formed between the short side wall and the lower surface, and the second angle range is 45° to 75°.

5. The floor sheet according to claim 4, wherein: The distance between the side surface and the adjacent groove row is 1 cm to 2 cm.

6. The floor sheet according to claim 4, wherein: The first connecting part is a groove part, and the connection between the groove part and the main body is projected onto the lower surface to form a first connecting line, and the distance between the first connecting line and the groove row is 1cm to 2cm; or, the second connecting part is a convex part, and the connection between the convex part and the main body is projected onto the lower surface to form a second connecting line, and the distance between the second connecting line and the groove row is 1cm to 2cm.

7. The floor sheet according to any one of claims 4 to 6, characterized in that: The distance between the groove top and the upper surface is 1 / 4 to 1 / 2 of the thickness of the floor sheet; or, the ratio of the distance between the groove top and the upper surface to the width of the groove opening in the width direction is greater than or equal to 1 / 2.

8. The floor sheet according to claim 4, wherein: The shape of the groove mouth or the shape of the groove body bottom is a long strip along the length direction, and the shape of the groove mouth or the shape of the groove body bottom is any one of a rectangle, a spindle, an ellipse, a polygon, and a capsule.

9. The floor sheet according to claim 8, wherein: The longitudinal section shape of the groove body along the length direction is composed of straight lines and / or curves, and the cross-sectional shape of the groove body along the width direction is any one of a trapezoid, a V-shape, a semi-ellipse, and a semicircle.

10. The floor sheet according to claim 9, wherein: The ratio of the total area of ​​the plurality of groove openings of the plurality of groove rows to the area of ​​the upper surface is 1:1 to 1:1.5.

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