PVC floor

Abstract

The invention discloses a PVC floor which comprises a first edge, a second edge and a third edge, the first edge is provided with a first coupling part, the first coupling part comprises a first tenon tongue, a first groove, a second groove and a second tenon tongue, the second edge and the first edge are oppositely arranged, the second edge is provided with a second coupling part, and the third edge is provided with a third coupling part. The second coupling part comprises a first concave part, a second concave part and a tongue part, the third coupling part comprises a first mortise, a first protrusion, a second mortise, a second protrusion and a third mortise, the first mortise is located above the first protrusion, the second mortise is formed between the first protrusion and the second protrusion, and the third mortise is located above the second protrusion. The width of the first protrusion in the horizontal direction is larger than that of the second tenon tongue in the horizontal direction. According to the PVC floor, A and B plates do not need to be distinguished, only a single floor type is used for installation according to a herringbone installation mode, the installation efficiency is high, and the locking strength is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of floor, in particular to a PVC floor. BACKGROUND

[0002] In order to facilitate the transportation and installation of the floor, the PVC floor is generally constructed into a rectangular structure, which has a long side and a short side, and the connection mode of long side and long side, short side and short side is often used in the process of installing the floor. This parallel paving mode is used for paving, that is, paving along the horizontal or vertical direction of the room, and the combination mode is relatively monotonous.

[0003] At present, some freely combined and paved floors appear on the market, such as herringbone paving floor. The traditional herringbone paving floor is often divided into two types, which are called A plate and B plate for easy identification. Specifically, any floor is divided into a front surface and a back surface. From the front surface to the back surface, a floor (taking a common SPC floor as an example) often includes a paint layer, a scratch-resistant layer, a substrate layer, and a balance layer. Each layer has different functions, so the front surface and the back surface of the floor must be strictly distinguished during floor paving, that is, the front surface of all floors must face up and the back surface must face down. During paving, each floor and the adjacent floor are often clamped by a lock structure. Since one of the advantages of PVC floor over traditional floor is that it is lighter in weight, users can assemble it themselves without additional procedures. They only need to find the right lock to assemble it themselves. Even if professional workers are hired for installation, the level of professionalism of the workers can be greatly reduced compared to non-PVC floor. In order to complete the assembly of the traditional A plate and B plate, the long side of the A plate and the long side of the B plate can be locked, the short side of the A plate can be locked with the long side of the B plate, and the long side of the B plate can be locked with the long side of the A plate, but the short side of the B plate cannot be locked with the long side of the A plate. Therefore, workers need to manually distinguish between A plates and B plates during assembly, which affects the assembly efficiency.

[0004] Patent No. WO2025031783A1 discloses a tile panel kit, in particular a floor tile panel kit or a wall tile panel kit. This patent uses a protrusion on the first long side to fit into a groove on the short side to form a locking force. That is, the comparative document relies only on this single structure locking force. Since the width of the protrusion itself is narrow, the internal stress is large during the formation of the locking force. The risk of damage is greatly increased during the action of bearing torsion or extrusion dragging. SUMMARY

[0005] Therefore, it is necessary to provide a PVC floor which can be installed in a herringbone installation mode without distinguishing between A and B plates, using only a single floor type, with high installation efficiency, high locking strength, and reduced damage risk.

[0006] A PVC floor panel, comprising: a first edge having a first coupling component, the first coupling component comprising a first tongue, a first groove, a second groove and a second tongue, the second tongue being located below the first tongue; a second edge opposite to the first edge, the second edge having a second coupling component, the second coupling component comprising a first recess, a second recess and a tongue, the second coupling component being configured to cooperate with the first coupling component of another floor panel such that the first recess cooperates with the first tongue, the second recess cooperates with the second tongue, and the tongue cooperates with the second groove; a third edge between the first edge and the second edge, the third edge having a third coupling component, the third coupling component comprising a first tongue groove, a first protrusion, a second tongue groove, a second protrusion and a third tongue groove, the first tongue groove being located above the first protrusion, the second tongue groove being formed between the first protrusion and the second protrusion, the first protrusion having a width in a horizontal direction greater than a width of the second tongue in the horizontal direction, the third coupling component being configured to cooperate with the first coupling component of another floor panel such that the first tongue cooperates with the first tongue groove, the first protrusion cooperates with the first groove, and the second tongue groove cooperates with the second tongue, the third coupling component being configured to cooperate with the second coupling component of another floor panel such that the first protrusion and the second protrusion are located in the first recess, the second protrusion cooperates with the first recess, and the tongue cooperates with the third tongue groove.

[0007] Optionally, the first edge has a first top surface, the second edge has a second top surface, the third edge has a third top surface, the first coupling component further comprises a first abutting surface extending downward from the first top surface to a top end of the first tongue, the second coupling component further comprises a sixth abutting surface extending downward from the second top surface to a top end of the first recess, and the third coupling component further comprises a second abutting surface extending downward from the third top surface to a top end of the first tongue groove.

[0008] Optionally, the first tongue comprises a first locking surface, the first locking surface being inclined with respect to the first top surface, the first tongue groove comprises a second locking surface, the second locking surface being inclined with respect to the third top surface, and the first locking surface is configured to abut against the second locking surface when the first coupling component cooperates with the third coupling component.

[0009] Optionally, the first groove includes a third abutment surface and a third locking surface, the third abutment surface being inclined relative to the first locking surface, and the third locking surface extending upwardly from one end of the third abutment surface. The first protrusion includes a fourth abutment surface and a fourth locking surface, the fourth abutment surface being inclined relative to the second locking surface, and the fourth locking surface extending upwardly from one end of the fourth abutment surface. When the first coupling component and the third coupling component are coupled, the third abutment surface is configured to abut against the fourth abutment surface, and the third locking surface is configured to abut against the fourth locking surface.

[0010] Optionally, the first tenon includes a first connecting surface, which extends downward at an incline from the bottom end of the first abutment surface. The first recess includes a seventh locking surface, which extends downward at an incline from the bottom end of the sixth abutment surface. When the first coupling component and the second coupling component are coupled, the seventh locking surface abuts against the first connecting surface.

[0011] Optionally, the second tenon includes a fifth locking surface, and the first coupling component further includes a fifth abutting surface. The fifth locking surface is inclined relative to the first top surface, and the fifth abutting surface is located below the fifth locking surface. The second recess includes a seventh abutting surface and an eighth abutting surface. The seventh abutting surface is connected to the first recess, and the eighth abutting surface is located below the seventh abutting surface. When the first coupling component and the second coupling component are coupled, the fifth locking surface and the seventh abutting surface abut together, and the fifth abutting surface and the eighth abutting surface abut together.

[0012] Optionally, the second groove includes a sixth locking surface, which is connected to the fifth abutment surface. The sixth locking surface is inclined upward from one end of the fifth abutment surface. The tongue includes an eighth locking surface, which is inclined relative to the second top surface. When the first coupling component and the second coupling component are coupled, the sixth locking surface and the eighth locking surface abut against each other.

[0013] Optionally, the second protrusion includes a ninth abutment surface and a ninth locking surface. The ninth abutment surface extends inward from the bottom end of the second tenon, and the ninth locking surface extends upward at an angle from one end of the ninth abutment surface. The tongue also includes a seventh mating surface, which extends upward at an angle from one end of the eighth abutment surface and the eighth locking surface extends upward at an angle from one end of the seventh mating surface. When the second coupling member and the third coupling member are coupled, the ninth abutment surface is configured to abut against the eighth abutment surface, and the ninth locking surface is configured to abut against the seventh mating surface.

[0014] Optionally, the second coupling component further includes a third recess disposed on the tongue, and the third coupling component further includes a third protrusion located below the third tenon. When the second coupling component and the third coupling component are coupled, the third protrusion abuts against the third recess.

[0015] Optionally, the third recess includes a tenth abutment surface, which is inclined relative to the second top surface, and the third protrusion includes a tenth locking surface, which is inclined relative to the third top surface, and the tenth abutment surface is configured to abut against the tenth locking surface.

[0016] This application features a first coupling component at the first edge, a second coupling component at the second edge, and a third coupling component at the third edge. The first coupling component can couple with the second coupling component, and the second coupling component can couple with the third coupling component. Therefore, when the flooring is assembled in a herringbone pattern, the PVC flooring of this application does not require differentiation between A and B boards. The first edge of any flooring piece can lock with the second or third edge of another flooring piece, and the second edge can lock with the first or third edge of another flooring piece. Thus, the PVC flooring of this application improves assembly efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic cross-sectional view of the floor in one embodiment; Figure 2 This is a schematic cross-sectional view of the floor combined with its two third edges in one embodiment; Figure 3 This is a schematic cross-sectional view of the first edge of the floor in one embodiment; Figure 4 This is a schematic cross-sectional view of the second edge of the floor in one embodiment; Figure 5 This is a schematic diagram showing the connection between a third coupling component of one floor and a first coupling component of another floor in one embodiment; Figure 6 for Figure 5 Enlarged view of point A; Figure 7 This is a schematic diagram showing the connection between a second coupling component of one floor and a third coupling component of another floor in one embodiment; Figure 8 for Figure 7 Enlarged view of point B; Figure 9 This is a schematic diagram showing the connection between a second coupling component of one floor and a first coupling component of another floor in one embodiment; Figure 10 for Figure 9 Enlarged view of point C.

[0019] 1. First edge; 2. Second edge; 3. Third edge; 4. First coupling component; 5. First tenon; 6. First groove; 7. Second groove; 8. Second tenon; 9. Second coupling component; 10. First recess; 11. Second recess; 12. Tongue; 13. Third coupling component; 14. First mortise; 15. First protrusion; 16. Second mortise; 17. Second protrusion; 18. Third mortise; 19. First top surface; 20. Second top surface; 21. Third top surface; 22. First abutment surface; 23. Sixth abutment surface; 24. Second abutment surface; 25. First locking surface; 26. Second locking surface; 27. First connecting surface; 28. First mating surface; 29. ​​Second connecting surface; 30. Second mating surface Surface; 31. Third abutting surface; 32. Third locking surface; 33. Fourth abutting surface; 34. Fourth locking surface; 35. Third connecting surface; 36. Fourth connecting surface; 37. Fifth locking surface; 38. Fifth abutting surface; 39. Seventh locking surface; 40. Seventh abutting surface; 41. Eighth abutting surface; 42. Fifth connecting surface; 43. Sixth connecting surface; 44. Seventh connecting surface; 45. Sixth locking surface; 46. Third mating surface; 47. Fourth mating surface; 48. Fifth mating surface; 49. Sixth mating surface; 50. Seventh mating surface; 51. Eighth locking surface; 52. Third recess; 53. Third protrusion; 54. Tenth abutting surface; 55. Tenth locking surface; 56. Ninth abutting surface; 57. Ninth locking surface.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] refer to Figures 1-4 This application provides a PVC floor, which includes a first edge 1, a second edge 2 and a third edge 3. The first edge 1 has a first coupling member 4. The first coupling member 4 includes a first tenon 5, a first groove 6, a second groove 7 and a second tenon 8. A first groove 6 is formed between the first tenon 5 and the second tenon 8. The first tenon 5 is located above the first groove 6, the second tenon 8 is located below the first groove 6, and the second groove 7 is located below the second tenon 8. The second edge 2 is disposed opposite to the first edge 1. The second edge 2 has a second coupling member 9. The second coupling member 9 includes a first recess 10, a second recess 11, and a tongue 12. The first recess 10 is located above the second recess 11, and the tongue 12 is located at the end of the second recess 11 away from the first edge 1. When the second coupling member 9 is configured to couple with the first coupling member 4 of another floor, the first recess 10 engages with the first tenon 5, the second recess 11 engages with the second tenon 8, and the tongue 12 engages with the second groove 7. The third edge 3 is disposed between the first edge 1 and the second edge 2. There are two third edges 3, which are arranged opposite each other. The length of the third edge 3 is less than the length of the first edge 1, and the length of the first edge 1 is the same as the length of the second edge 2. The first edge 1, the second edge 2, and the two third edges 3 enclose a cuboid structure. The third edge 3 has a third coupling component 13. The third coupling component 13 includes, from top to bottom, a first tenon 14, a first protrusion 15, a second tenon 16, a second protrusion 17, and a third tenon 18 along the thickness direction of the floor. The first tenon 14 is located above the first protrusion 15. The first protrusion 15 and the first protrusion 17 are arranged opposite each other. A second mortise 16 is formed between the second protrusions 17. The width of the first protrusion 15 in the horizontal direction is greater than the width of the second tongue 8 in the horizontal direction. When the third coupling member 13 is configured to couple with the first coupling member 4 of another floor, the first tongue 5 and the first mortise 14 cooperate, the first protrusion 15 and the first groove 6 cooperate, and the second mortise 16 and the second tongue 8 cooperate. When the third coupling member 13 is configured to couple with the second coupling member 9 of another base plate, the first protrusion 15 and the second protrusion 17 are both located in the first recess 10, and the second protrusion 17 and the first recess 10 cooperate, and the tongue 12 cooperates with the third mortise 18.

[0025] This application provides a first coupling component 4 at the first edge 1, a second coupling component 9 at the second edge 2, and a third coupling component 13 at the third edge 3. The first coupling component 4 can be coupled with the second coupling component 9, and the second coupling component 9 can be coupled with the third coupling component 13. Therefore, when the flooring is spliced ​​in a herringbone pattern, the flooring of this application does not need to distinguish between A and B boards. The first edge 1 of any flooring can be locked with the second edge 2 or the third edge 3 of another flooring, and the second edge 2 can be locked with the first edge 1 or the third edge 3 of another flooring. Therefore, the flooring of this application can improve splicing efficiency.

[0026] When the first edge 1 and the third edge 3 are spliced, the first tongue 5 and the first groove 14 engage to form a locking structure, providing vertical locking force during the engagement of the first edge 1 and the third edge 3. That is, after the first groove 14 and the first tongue 5 engage, the vertical displacement of the first edge 1 relative to the third edge 3 is restricted, which enhances the locking strength of the first edge 1 and the third edge 3. In addition, it works together with the second tongue 8 to prevent the possible height difference between the first edge 1 and the third edge 3 after the floor has been used for a long time.

[0027] After the second tongue 8 and the second mortise 16 engage, they form a locking structure, which provides horizontal locking force during the engagement of the first edge 1 and the third edge 3, enhances the locking strength of the first edge 1 and the third edge 3, and prevents horizontal gaps from forming at the joint of the first edge 1 and the third edge 3 after long-term use of the floor.

[0028] Therefore, this application provides a first tenon 5 above the first groove 6, and the first tenon 5 and the first mortise 14 engage to form a vertical locking force. By moving the position of the locking structure that forms the vertical locking force upward, the strength of the second protrusion 17 of the third edge 3 is increased to a certain extent. At the same time, during the locking process of the first edge 1 and the third edge 3, the distance between the vertical locking point and the horizontal locking point increases, thereby optimizing the structural stress point of the first edge 1 and increasing the service life of the floor locking structure. Compared to the prior art, this application also achieves the locking of the first edge 1 and the third edge 3 through the cooperation of the first tenon 5 and the second tenon 8, which greatly reduces the risk of damage. By setting the width of the first protrusion 15 of the third edge 3 in the horizontal direction to be greater than the width of the second tenon 8 of the first edge 1 in the horizontal direction, this application avoids setting a groove in the narrower second tenon 8 during the formation of locking force, compared with the structure of the prior art, thus enhancing the strength of the second tenon 8. The structure of this application is less prone to damage. Since the width of the first protrusion 15 in the horizontal direction is greater than the width of the second tenon 8 of the first edge 1 in the horizontal direction, the deformation of the first protrusion 15 in this application will be less than the deformation of the second tenon 8 in the same environment with a large temperature and humidity difference. When it is cooled and contracted, the locking force of this application is greater than the locking force of the temperature difference limit that the prior art can withstand.

[0029] Furthermore, during the installation process, it is often necessary to tap the board. During the installation of the first edge 1 and the third edge 3, this application uses the first tenon 5 and the first mortise 14 to provide vertical support for the floor, thus avoiding damage to the floor material after tapping.

[0030] refer to Figures 1-4The first edge 1 has a first top surface 19, the second edge 2 has a second top surface 20, and the third edge 3 has a third top surface 21. The first coupling member 4 also includes a first abutting surface 22, which extends downward from the first top surface 19 to the top of the first tenon 5. The second coupling member 9 also includes a sixth abutting surface 23, which extends downward from the second top surface 20 to the top of the first recess 10. When the first coupling member 4 and the second coupling member 9 are coupled, the first abutting surface 22 is configured to abut against the sixth abutting surface 23, indicating that the first edge 1 has a first top surface 19. The second coupling member 2 has a second top surface 20, which extends downward from the second top surface 20 to the top of the first recess 10. 1. The second edge 2 is engaged in place. The third coupling component 13 also includes a second abutment surface 24, which extends downward from the third top surface 21 to the top of the first tenon 14. When the first coupling component 4 is coupled with the third coupling component 13, the first abutment surface 22 is configured to abut against the second abutment surface 24, which means that the first edge 1 and the third edge 3 are engaged in place. When the second coupling component 9 is coupled with the third coupling component 13, the sixth abutment surface 23 is configured to abut against the second abutment surface 24, which means that the second edge 2 and the third edge 3 are engaged in place.

[0031] refer to Figures 1-3 The first tenon 5 includes a first locking surface 25, which is inclined relative to the first top surface 19. The first mortise 14 includes a second locking surface 26, which is inclined relative to the third top surface 21. When the first coupling member 4 and the third coupling member 13 are coupled, the first locking surface 25 is configured to abut against the second locking surface 26.

[0032] Specifically, the first tenon 5 includes a first connecting surface 27 and a first mating surface 28. The first connecting surface 27 extends downward from the bottom end of the first abutting surface 22, the first mating surface 28 extends downward from the bottom end of the first connecting surface 27, and the first locking surface 25 extends downward from the bottom end of the first mating surface 28.

[0033] Specifically, the first mating surface 28 and the first abutting surface 22 are set in parallel, the cross section of the first tenon 5 is roughly trapezoidal, and the first locking surface 25 and the first connecting surface 27 form the hypotenuse of the trapezoid, so that the first tenon 5 can be easily engaged into the first mortise 14 during the floor installation process.

[0034] In this embodiment, the included angle between the first locking surface 25 and the first abutting surface 22 is 65 degrees, and the included angle between the first connecting surface 27 and the first abutting surface 22 is 55 degrees.

[0035] The first tenon 14 includes a second connecting surface 29 and a second mating surface 30. The second connecting surface 29 extends downward from the bottom end of the second abutting surface 24, the second mating surface 30 extends downward from the bottom end of the second connecting surface 29, and the second locking surface 26 extends downward from the bottom end of the second mating surface 30.

[0036] In this embodiment, the included angle between the second locking surface 26 and the second abutting surface 24 is 65 degrees, the second mating surface 30 and the first mating surface 28 are arranged in parallel, and the included angle between the second connecting surface 29 and the second abutting surface 24 is 125 degrees.

[0037] refer to Figure 8 and Figure 9 The first groove 6 includes a third abutment surface 31 and a third locking surface 32. The third abutment surface 31 is inclined relative to the first locking surface 25. The third locking surface 32 extends upward from one end of the third abutment surface 31. The first protrusion 15 includes a fourth abutment surface 33 and a fourth locking surface 34. The fourth abutment surface 33 is inclined relative to the second locking surface 26. The fourth locking surface 34 extends upward from one end of the fourth abutment surface 33. When the first coupling member 4 and the third coupling member 13 are coupled, the third abutment surface 31 is configured to abut against the fourth abutment surface 33, and the third locking surface 32 is configured to abut against the fourth locking surface 34.

[0038] Specifically, the first groove 6 includes a third connecting surface 35, which extends downward from one end of the first locking surface 25, and a third abutting surface 31 extends downward from the bottom end of the third connecting surface 35. The first protrusion 15 includes a fourth connecting surface 36, which extends downward from the bottom end of the second locking surface 26, and a fourth abutting surface 33 extends downward at an angle from the bottom end of the fourth connecting surface 36.

[0039] The engagement of the first groove 6 and the first protrusion 15 provides a vertical locking force for the locking of the first edge 1 and the third edge 3. The first locking surface 25 and the third abutting surface 31 cooperate to restrict the vertical displacement of the first protrusion 15. The third locking surface 32 and the first locking surface 25 cooperate to restrict the horizontal displacement of the first protrusion 15.

[0040] In this embodiment, the included angle between the first abutting surface 22 and the third abutting surface 31 is 15 degrees, and the included angle between the third abutting surface 31 and the third locking surface 32 is 65 degrees.

[0041] refer to Figures 1-10The second tenon 8 includes a fifth locking surface 37, and the first coupling component 4 also includes a fifth abutment surface 38. The fifth locking surface 37 is inclined relative to the first top surface 19, and the fifth abutment surface 38 is located below the fifth locking surface 37. Specifically, when the first edge 1 and the third edge 3 are engaged, the second mortise 16 is used to accommodate the second tenon 8. The second tenon 8 also includes a fifth connecting surface 42. The fifth locking surface 37 extends upward inclinedly from one end of the third locking surface 32, the fifth connecting surface 42 extends downward inclinedly from one end of the fifth locking surface 37, and the fifth abutment surface 38 extends horizontally from one end of the fifth connecting surface 42. The second mortise 16 includes a sixth connecting surface 43 and a seventh connecting surface 44. The sixth connecting surface 43 extends downward inclinedly from one end of the fourth locking surface 34, and the seventh connecting surface 44 extends downward from the bottom end of the sixth connecting surface 43.

[0042] refer to Figures 1-10 The first recess 10 includes a seventh locking surface 39, which is inclined relative to the second edge 2. The second recess 11 includes a seventh abutting surface 40 and an eighth abutting surface 41. The seventh abutting surface 40 is connected to the first recess 10, and the eighth abutting surface 41 is located below the seventh abutting surface 40. When the first coupling component 4 and the second coupling component 9 are coupled, the seventh locking surface 39 abuts against the first connecting surface 27, the fifth locking surface 37 abuts against the seventh abutting surface 40, and the fifth abutting surface 38 abuts against the eighth abutting surface 41.

[0043] refer to Figure 1 The second groove 7 includes a sixth locking surface 45, a third mating surface 46 and a fourth mating surface 47. The sixth locking surface 45 extends upward from one end of the fifth abutting surface 38, the third mating surface 46 extends downward from one end of the sixth locking surface 45, and the fourth mating surface 47 extends downward from one end of the third mating surface 46. The first recess 10 includes a fifth mating surface 48, a seventh locking surface 39 extending downward from the bottom end of the sixth abutment surface 23, and the fifth mating surface 48 extending downward from the bottom end of the seventh locking surface 39. The second recess 11 includes a sixth mating surface 49, a seventh abutment surface 40 extending downward from the bottom end of the fifth mating surface 48, and the sixth mating surface 49 extending downward from the bottom end of the seventh abutment surface 40. An eighth abutment surface 41 extends from one end of the sixth mating surface 49 in a direction away from the first edge 1.

[0044] Specifically, the sixth mating surface 49 is an arc shape.

[0045] The tongue 12 includes a seventh mating surface 50 and an eighth locking surface 51. The seventh mating surface 50 extends upward from one end of the eighth abutment surface 41, and the eighth locking surface 51 extends upward at an angle from one end of the seventh mating surface 50.

[0046] When the first edge 1 and the second edge 2 are locked together, the first abutting surface 22 and the sixth abutting surface 23 abut together, which means that the first edge 1 and the second edge 2 are locked in place. The first connecting surface 27 abuts with the seventh locking surface 39, the seventh abutting surface 40 abuts with the fifth locking surface 37, the eighth abutting surface 41 abuts with the fifth abutting surface 38, and the eighth locking surface 51 abuts with the sixth locking surface 45.

[0047] refer to Figure 1 The second protrusion 17 includes a ninth abutment surface 56 and a ninth locking surface 57. The ninth abutment surface 56 extends inward from the bottom end of the seventh connecting surface 44, and the ninth locking surface 57 extends upward at an angle from one end of the ninth abutment surface 56.

[0048] refer to Figure 1 The second coupling member 9 also includes a third recess 52, which is disposed on the tongue 12. The third coupling member 13 also includes a third protrusion 53, which is located below the third tenon 18. When the second coupling member 9 and the third coupling member 13 are coupled, the third protrusion 53 abuts against the third recess 52.

[0049] The third recess 52 includes a tenth abutment surface 54, which is inclined relative to the second top surface 20. The third protrusion 53 includes a tenth locking surface 55, which is inclined relative to the third top surface 21. When the second edge 2 and the third edge 3 are locked, the tenth abutment surface 54 is configured to abut against the tenth locking surface 55.

[0050] Specifically, the angle between the ninth locking surface 57 and the eighth abutment surface 41 is less than 90 degrees. In this embodiment, the angle between the ninth locking surface 57 and the eighth abutment surface 41 is 81 degrees. The angle between the seventh mating surface 50 and the eighth abutment surface 41 is the same as the angle between the ninth locking surface 57 and the eighth abutment surface 41. The advantage of this arrangement is that it provides locking force in the horizontal direction for the second edge 2 and the third edge 3, and the locking force in the vertical direction for the second edge 2 and the third edge 3 is formed between the second protrusion 17 and the eighth abutment surface 41.

[0051] Therefore, when the second edge 2 and the third edge 3 of this application are locked together, they can simultaneously possess locking forces in both the horizontal and vertical directions, greatly improving the locking strength.

[0052] refer to Figure 5 and Figure 6 When the first edge 1 and the third edge 3 are locked, the first abutting surface 22 and the second abutting surface 24 abut against each other, the first locking surface 25 and the second locking surface 26 abut against each other, the third abutting surface 31 and the fourth abutting surface 33 abut against each other, and the third locking surface 32 and the fourth locking surface 4 abut against each other.

[0053] refer to Figure 7 and Figure 8 When the second edge 2 and the third edge 3 are locked, the sixth abutting surface 23 and the second abutting surface 24 abut against each other, the ninth abutting surface 56 and the eighth abutting surface 41 abut against each other, the seventh mating surface 50 and the ninth locking surface 57 abut against each other, and the tenth abutting surface 54 and the tenth locking surface 55 abut against each other.

[0054] refer to Figure 9 and Figure 10 When the first edge 1 and the second edge 2 are locked together, the first abutting surface 22 and the sixth abutting surface 23 abut together, which means that the first edge 1 and the second edge 2 are locked in place. The first connecting surface 27 abuts with the seventh locking surface 39, the seventh abutting surface 40 abuts with the fifth locking surface 37, the eighth abutting surface 41 abuts with the fifth abutting surface 38, and the eighth locking surface 51 abuts with the sixth locking surface 45.

[0055] This application also provides a method for installing the above-mentioned PVC flooring, the method comprising: Multiple floorboards are provided, each floorboard having a first edge 1, a second edge 2, and a third edge 3. The first edge 1 and the second edge 2 are disposed opposite each other, and the third edge 3 is disposed between the first edge 1 and the second edge 2. The first edge 1 has a first coupling member 4, the second edge 2 has a second coupling member 9, and the third edge 3 has a third coupling member 13. The first coupling member 4, the second coupling member 9, and the third coupling member 13 are configured to be able to lock into each other in pairs. The installation is achieved by connecting multiple floorboards together, with the connection achieved through the following locking method: the first coupling component 4 on the first edge 1 of the first floorboard locks into the second coupling component 9 on the second edge 2 of the second floorboard; or The second coupling member 9 on the second edge 2 of the first floor is locked to the first coupling member 4 on the first edge 1 of the second floor; and The third coupling component 13 of the third edge 3 of the first floor or the second floor is locked to the first coupling component 4 of the first edge 1 or the second coupling component 9 of the second edge 2 of the third floor; By using connections that incorporate the above locking methods, multiple floorboards can be laid to form a continuous herringbone pattern.

[0056] Specifically, the terms "first floorboard," "second floorboard," and "third floorboard" are not used to define the order of floorboard installation or specific spatial locations, but rather to clearly describe the different connection relationships that may exist between the floorboards. These names are only used to distinguish different individual floorboards in linguistic description, to clarify that any floorboard (the first floorboard) can be locked with the second edge 2 of another floorboard (the second floorboard) through its first edge 1. At the same time, the third edge 3 of the first or second floorboard can be locked with the first edge 1 or the second edge 2 of a third different floorboard (the third floorboard). This series of connection relationships constitutes the basic unit of herringbone pattern paving, but the installation actions to achieve these connections can be performed in any order in actual operation, without being limited by the literal order of the words "first," "second," "third," etc., in the claims.

[0057] Specifically, the steps for locking the first coupling component 4 on the first edge 1 of the first floorboard and the second coupling component 9 on the second edge 2 of the second floorboard are as follows: After the first floorboard is aligned with the second floorboard at an angle and pressed down, the first tenon 5 of the first floorboard enters into the first recess 10 of the second floorboard and abuts against the first recess 10. The second tenon 8 of the first floorboard enters into the second recess 11 of the second floorboard and abuts against the second recess 11. The tongue 12 of the second floorboard enters into the second groove 7 of the first floorboard and abuts against the groove.

[0058] The specific steps for the second coupling component 9 on the second edge 2 of the first floor and the first coupling component 4 on the first edge 1 of the second floor to lock together are as follows: After the second floorboard is aligned with the first floorboard at an angle and pressed down, the first tenon 5 of the second floorboard enters into the first recess 10 of the first floorboard and abuts against the first recess 10. The second tenon 8 of the second floorboard enters into the second recess 11 of the first floorboard and abuts against the second recess 11. The tongue 12 of the first floorboard enters into the second groove 7 of the second floorboard and abuts against the groove.

[0059] The specific steps for locking the third coupling component 13 of the third edge 3 of the first or second floor to the first coupling component 4 of the first edge 1 of the third floor are as follows: After the first or second floorboard is aligned with the third floorboard at an angle and pressed down, the first tenon 14 of the first or second floorboard abuts against the first tenon 5 of the third floorboard, the first protrusion 15 of the first or second floorboard enters the first groove 6 of the third floorboard and abuts against the first groove 6, and the second tenon 16 of the first or second floorboard accommodates the second tenon 8 of the third floorboard.

[0060] The specific steps for locking the third coupling component 13 of the third edge 3 of the first or second floor to the second coupling component 9 of the second edge 2 of the third floor are as follows: After the first or second floorboard is aligned with the third floorboard at an angle and pressed down, the first protrusion 15 and the second protrusion 17 of the first or second floorboard enter the second recess 11 of the third floorboard, and the second protrusion 17 and the second recess 11 abut against each other. The tongue 12 of the third floorboard enters the third tenon 18 of the first or second floorboard until the tongue 12 abuts against the third tenon 18.

[0061] The first coupling component includes a first tenon, a first groove, a second groove, and a second tenon, with the second tenon located below the first groove. The second coupling component includes a first recess, a second recess, and a tongue. The third coupling component includes a first mortise, a first protrusion, a second mortise, a second protrusion, and a third mortise, with the first mortise located above the first protrusion. The second mortise is formed between the first protrusion and the second protrusion. When the second coupling component is configured to couple with the first coupling component of another floor, the first recess engages with the first tenon, the second recess engages with the second tenon, and the tongue engages with the second groove. When the third coupling component is configured to couple with the first coupling component of another floor, the first tenon engages with the first mortise, the first protrusion engages with the first groove, and the second mortise engages with the second tenon. When the third coupling component is configured to couple with the second coupling component of another base plate, both the first protrusion and the second protrusion are located within the first recess, and the second protrusion engages with the first recess. The tongue engages with the third mortise.

[0062] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A type of PVC flooring, characterized in that, include: The first edge has a first coupling component, the first coupling component including a first tenon, a first groove, a second groove and a second tenon, the second tenon being located below the first tenon; The second edge is disposed opposite to the first edge. The second edge has a second coupling member, which includes a first recess, a second recess, and a tongue. When the second coupling member is configured to couple with the first coupling member of another floor, the first recess engages with the first tongue, the second recess engages with the second tongue, and the tongue engages with the second groove. A third edge is disposed between the first edge and the second edge. There are two third edges, which are arranged opposite to each other. Each third edge has a third coupling member, which includes a first mortise, a first protrusion, a second mortise, a second protrusion, and a third mortise. The first mortise is located above the first protrusion, and a second mortise is formed between the first protrusion and the second protrusion. The width of the first protrusion in the horizontal direction is greater than the width of the second tenon in the horizontal direction. When the third coupling member is configured to couple with the first coupling member of another floor, the first tenon and the first mortise engage, the first protrusion and the first groove engage, and the second mortise and the second tenon engage. When the third coupling member is configured to couple with the second coupling member of another floor, the first protrusion and the second protrusion are both located within the first recess, and the second protrusion engages with the first recess. The tongue engages with the third mortise.

2. The PVC flooring according to claim 1, characterized in that, The first edge has a first top surface, the second edge has a second top surface, and the third edge has a third top surface. The first coupling component further includes a first abutting surface extending downward from the first top surface to the top of the first tenon. The second coupling component further includes a sixth abutting surface extending downward from the second top surface to the top of the first recess. The third coupling component further includes a second abutting surface extending downward from the third top surface to the top of the first mortise.

3. The PVC flooring according to claim 2, characterized in that, The first tenon includes a first locking surface, which is inclined relative to the first top surface. The first mortise includes a second locking surface, which is inclined relative to the third top surface. When the first coupling component and the third coupling component are coupled, the first locking surface is configured to abut against the second locking surface.

4. The PVC flooring according to claim 3, characterized in that, The first groove includes a third abutment surface and a third locking surface. The third abutment surface is inclined relative to the first locking surface. The third locking surface extends upward from one end of the third abutment surface. The first protrusion includes a fourth abutment surface and a fourth locking surface. The fourth abutment surface is inclined relative to the second locking surface. The fourth locking surface extends upward from one end of the fourth abutment surface. When the first coupling component and the third coupling component are coupled, the third abutment surface is configured to abut against the fourth abutment surface, and the third locking surface is configured to abut against the fourth locking surface.

5. The PVC flooring according to claim 4, characterized in that, The first tenon includes a first connecting surface, which extends downward at an incline from the bottom end of the first abutment surface. The first recess includes a seventh locking surface, which extends downward at an incline from the bottom end of the sixth abutment surface. When the first coupling component and the second coupling component are coupled, the seventh locking surface abuts against the first connecting surface.

6. The PVC flooring according to claim 5, characterized in that, The second tenon includes a fifth locking surface, and the first coupling component also includes a fifth abutting surface. The fifth locking surface is inclined relative to the first top surface and is located below the fifth locking surface. The second recess includes a seventh abutting surface and an eighth abutting surface. The seventh abutting surface is connected to the first recess, and the eighth abutting surface is located below the seventh abutting surface. When the first coupling component and the second coupling component are coupled, the fifth locking surface and the seventh abutting surface abut together, and the fifth abutting surface and the eighth abutting surface abut together.

7. The PVC flooring according to claim 6, characterized in that, The second groove includes a sixth locking surface, which is connected to the fifth abutment surface. The sixth locking surface is inclined upward from one end of the fifth abutment surface. The tongue includes an eighth locking surface, which is inclined relative to the second top surface. When the first coupling component and the second coupling component are coupled, the sixth locking surface and the eighth locking surface abut against each other.

8. The PVC flooring according to claim 7, characterized in that, The second protrusion includes a ninth abutment surface and a ninth locking surface. The ninth abutment surface extends inward from the bottom end of the second tenon, and the ninth locking surface extends upward at an angle from one end of the ninth abutment surface. The tongue also includes a seventh mating surface, which extends upward at an angle from one end of the eighth abutment surface and the eighth locking surface extends upward at an angle from one end of the seventh mating surface. When the second coupling component and the third coupling component are coupled, the ninth abutment surface is configured to abut against the eighth abutment surface, and the ninth locking surface is configured to abut against the seventh mating surface.

9. The PVC flooring according to claim 8, characterized in that, The second coupling component further includes a third recess, which is disposed on the tongue. The third coupling component also includes a third protrusion, which is located below the third tenon. When the second coupling component and the third coupling component are coupled, the third protrusion abuts against the third recess.

10. The PVC flooring according to claim 9, characterized in that, The third recess includes a tenth abutment surface, which is inclined relative to the second top surface. The third protrusion includes a tenth locking surface, which is inclined relative to the third top surface. The tenth abutment surface is configured to abut against the tenth locking surface.

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