Stable SPC floor

Abstract

The utility model discloses a stable type SPC floor, which comprises a base material layer, a color film texture layer, a wear-resistant layer and a UV layer, the upper surface of the base material layer is fixed with one end of the color film texture layer, the other end of the color film texture layer is fixed with the wear-resistant layer, the UV layer is arranged on the wear-resistant layer, one end of the base material layer is provided with an installation groove, the other end of the base material layer is fixedly provided with an insertion tenon, and the insertion tenon is arranged in the installation groove. Each inserting tenon comprises a first connecting main body, a first opening is formed in one end of each first connecting main body and penetrates through the circumferential face of the first connecting main body, a first expansion protrusion is arranged on the circumferential face of each first connecting main body, and the outer diameter of each first expansion protrusion is larger than the height of the corresponding mounting groove. Wherein the inserting tenon on one stable SPC floor is inserted into the mounting groove in the other stable SPC floor, and after the inserting tenon is extruded by the groove wall of the mounting groove, the inserting tenon is expanded in the mounting groove. The utility model has the advantages of good stability after being paved, and is favorable for reducing the production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of flooring, in particular to a stable SPC flooring. Background Art

[0002] SPC flooring consists of a wear-resistant layer, a UV coating, a color film texture layer, and a base material layer. The wear-resistant layer is typically made of transparent PVC, which offers strong adhesion, abrasion resistance, and scratch resistance. The UV coating is formed by curing UV paint to prevent UV rays from evaporating the chemical substances within the board. The color film layer offers a variety of decorative patterns, including wood, stone, and carpet, to suit different occasions and tastes. The base material layer is a composite material made by mixing stone powder and thermoplastic polymer materials and then extruding them at high temperatures. It combines the properties and characteristics of both wood and plastic, resulting in excellent strength and toughness.

[0003] The above-mentioned SPC floor is provided with a first overlapping portion at one end and a second overlapping portion at the other end. The thickness of the first overlapping portion and the second overlapping portion are both less than the thickness of the SPC floor. A coupling groove is provided on the upper surface of the first overlapping portion, and a tenon is provided on the lower surface of the second overlapping portion. When two adjacent SPC floors are assembled, the tenon on one SPC floor is combined with the coupling groove on the other SPC floor, so that the two floors form a better fit.

[0004] Regarding the above-mentioned method of providing coupling grooves and tenons on the two overlapping parts, the floor needs to form a tight fit after installation, which requires high manufacturing precision of the first overlapping part and the second overlapping part as well as the tenon and the coupling groove. Therefore, this structure has very high requirements for molds or machining to form the coupling grooves and tenons, which will increase production costs. In addition, the tenon and the coupling groove are clearance fit, so the stability of the floor after installation cannot be guaranteed. Utility Model Content

[0005] The utility model provides a stable SPC floor, which has the advantages of good stability after laying and is conducive to reducing production costs.

[0006] The technical solutions to the above technical problems are as follows:

[0007] The stable SPC floor includes a substrate layer, a color film texture layer, a wear-resistant layer, and a UV layer. The upper surface of the substrate layer is fixed to one end of the color film texture layer, the other end of the color film texture layer is fixed to the wear-resistant layer, and the UV layer is arranged on the wear-resistant layer. One end of the substrate layer is provided with a mounting groove, and the other end of the substrate layer is fixed with a tenon. The tenon includes a first connecting body, one end of the first connecting body is provided with a first opening, the first opening passes through the circumference of the first connecting body, and the circumference of the first connecting body is provided with a first expansion protrusion. The outer diameter of the first expansion protrusion is greater than the height of the mounting groove. When two adjacent stable SPC floors are assembled, the tenon on one stable SPC floor is inserted into the mounting groove on the other stable SPC floor. After the tenon is squeezed by the groove wall of the mounting groove, the tenon is expanded and tightened in the mounting groove.

[0008] In this utility model, the tenon undergoes elastic deformation upon insertion into the mounting groove, resulting in a resilient force that allows the tenon to form a tight fit within the mounting groove. This structure not only ensures a tight connection between two adjacent floorboards after installation, but also prevents loosening, thereby ensuring the stability of the flooring. Furthermore, since the tenon and mounting groove form an interference fit, this structure eliminates the need for high-precision molds for manufacturing the substrate layer, thereby reducing mold costs and machining costs for the substrate layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is the appearance structure diagram of the stable SPC floor.

[0010] Figure 2 This is a splicing diagram of two adjacent stable SPC floors.

[0011] Figure 3 This is the structural diagram of the first type of mortise and tenon.

[0012] Figure 4 This is the assembly diagram of the first type of tenon and base material layer.

[0013] Figure 5 This is the structural diagram of the second type of mortise and tenon.

[0014] Figure 6 This is the assembly diagram of the second type of tenon and base material layer.

[0015] Symbols in the accompanying drawings:

[0016] Base material layer 1, mounting hole 1a, color film texture layer 2, wear-resistant layer 3, UV layer 4, mounting groove 5, tenon 6, first connecting body 6a, first opening 6b, first expansion protrusion 6c, first plug-in guide 6d, second connecting body 6e, second opening 6f, second expansion protrusion 6g, limiting step 6h, second plug-in guide 6i. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0020] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0022] like Figures 1 to 6As shown, the stable SPC floor of the present invention includes a base material layer 1, a color film texture layer 2, a wear-resistant layer 3, and a UV layer 4. The upper surface of the base material layer 1 is fixed to one end of the color film texture layer 2, and the other end of the color film texture layer 2 is fixed to the wear-resistant layer 3. The UV layer 4 is arranged on the wear-resistant layer 3. The upper surface of the wear-resistant layer 3 is provided with a UV layer 4. The base material layer 1 is made of stone powder and thermoplastic polymer material after being evenly stirred and then extruded at high temperature. The color film texture layer 2 is a decorative layer of various wood grains, stone grains, and carpet grains, which can meet the different needs of different occasions and different tastes. The material of the wear-resistant layer 3 is transparent PVC, which has strong adhesion and is wear-resistant and scratch-resistant. The UV layer 4 is a coating formed by curing UV paint, which can prevent ultraviolet rays from volatilizing the chemical substances in the board. The UV layer 4 is evenly attached to the wear-resistant layer 3 by spraying, and the spraying amount is 12-40g / m 2 .

[0023] One end of the base material layer 1 is provided with a mounting groove 5, and the other end of the base material layer 1 is fixed with a tenon 6. The tenon 6 includes a first connecting body 6a, one end of which is provided with a first opening 6b, which extends through the circumference of the first connecting body 6a. The circumference of the first connecting body 6a is provided with a first expansion protrusion 6c. The first expansion protrusion 6c is annular, and the outer diameter of the first expansion protrusion 6c is greater than the height of the mounting groove 5. When two adjacent stable SPC floorings are assembled, the tenon 6 on one stable SPC floor is inserted into the mounting groove 5 on the other stable SPC floor. After the tenon 6 is squeezed by the groove wall of the mounting groove 5, the tenon 6 is expanded in the mounting groove 5. The material of the tenon 6 is preferably plastic. The purpose of using plastic is that the tenon 6 will produce elastic deformation under compression during the insertion process, and on the other hand, the plastic has corresponding strength.

[0024] In the present invention, the tenon 6 undergoes elastic deformation upon insertion into the mounting groove 5. The resilient force of the tenon 6 allows it to form a tight fit with the mounting groove 5. This structure not only ensures a tight connection between two adjacent floorboards after installation, but also prevents loosening, thereby ensuring the stability of the flooring. Furthermore, since the tenon 6 and the mounting groove 5 are inserted and form an interference fit, this structure eliminates the need for high-precision molds for manufacturing the substrate layer 1, thereby reducing mold costs and the cost of machining the substrate layer.

[0025] The first plug-in guide portion 6d is provided on the circumference of one end of the tenon 6. The first plug-in guide portion 6d is tapered. When the tenon 6 is inserted into the installation groove 5, the tapered first plug-in guide portion 6d guides the tenon 6 to improve the assembly efficiency of the tenon 6 and the installation groove 5.

[0026] In the present invention, the tenon 6 can be integrally formed with the base material layer 1. However, considering that the floor needs to be transported to various places after leaving the factory, in order to prevent the tenon 6 from being broken by impact during transportation or moving, it is preferred to set the tenon 6 and the base material layer 1 as a separate structure, as follows.

[0027] The other end of the base material layer 1 is provided with a mounting hole 1a, and the tenon 6 also includes a second connecting body 6e, one end of the second connecting body 6e is fixed to the other end of the first connecting body 6a, and the second connecting body 6e cooperates with the mounting hole 1a to fix the tenon 6 to the base material layer 1.

[0028] When laying the floor, the tenon 6 is connected to the mounting hole 1a on each substrate layer 1, the second connecting body 6e is a screw, the mounting hole 1a set at the other end of the substrate layer 1 is a threaded hole, and the second connecting body 6e is threadedly matched with the mounting hole 1a.

[0029] In addition to using a screw, the second connecting body 6e can also adopt a structure as follows: a second opening 6f is provided at the other end of the second connecting body 6e, and a second expansion protrusion 6g is provided on the circumferential surface of the second connecting body 6e. The outer diameter of the second expansion protrusion 6g is larger than the aperture of the mounting hole 1a on the base material layer 1. When the second connecting body 6e is inserted into the mounting hole 1a, the second expansion protrusion 6g is squeezed by the wall of the mounting hole 1a, so that the tenon 6 and the mounting hole 1a have an interference fit.

[0030] Mounting hole 1a is a stepped hole. Second connecting body 6e also has a limiting step 6h. The diameter of limiting step 6h is larger than the outer diameter of second expansion protrusion 6g. Limiting step 6h mates with the larger diameter of mounting hole 1a, while second connecting body 6e and second expansion protrusion 6g mate with the smaller diameter of mounting hole 1a. By limiting limiting step 6h using the step within mounting hole 1a, second connecting body 6e is secured in place within mounting hole 1a without damaging it.

[0031] In addition, a second insertion guide portion 6i is provided at the end of the second connecting body 6e. The second insertion guide portion 6i is tapered. When the tenon 6 is inserted into the mounting hole 1a, the tapered second insertion guide portion 6i guides the tenon 6, thereby improving the assembly efficiency of the tenon 6 and the mounting hole 1a.

Claims

1. A stable SPC floor, comprising a base material layer (1), a color film texture layer (2), a wear-resistant layer (3), and a UV layer (4), wherein the upper surface of the base material layer (1) is fixed to one end of the color film texture layer (2), the other end of the color film texture layer (2) is fixed to the wear-resistant layer (3), the UV layer (4) is arranged on the wear-resistant layer (3), one end of the base material layer (1) is provided with a mounting groove (5), and the other end of the base material layer (1) is fixed with a tenon (6), characterized in that: The tenon (6) includes a first connecting body (6a), one end of the first connecting body (6a) is provided with a first opening (6b), the first opening (6b) penetrates the circumference of the first connecting body (6a), and the circumference of the first connecting body (6a) is provided with a first expansion protrusion (6c), the outer diameter of the first expansion protrusion (6c) is greater than the height of the installation groove (5), when two adjacent stable SPC floors are assembled, the tenon (6) on one stable SPC floor is inserted into the installation groove (5) on the other stable SPC floor, and the tenon (6) is squeezed by the groove wall of the installation groove (5), so that the tenon (6) is expanded and tightened in the installation groove (5).

2. The stable SPC floor according to claim 1, characterized in that: A first plug-in guide portion (6d) is provided on the peripheral surface of one end of the tenon (6), and the first plug-in guide portion (6d) is tapered.

3. The stable SPC floor according to claim 1, characterized in that: The other end of the base material layer (1) is provided with a mounting hole (1a), and the tenon (6) further comprises a second connecting body (6e), one end of the second connecting body (6e) is fixed to the other end of the first connecting body (6a), and the second connecting body (6e) cooperates with the mounting hole (1a) to fix the tenon (6) to the base material layer (1).

4. The stable SPC floor according to claim 3, characterized in that: The second connecting body (6e) is a screw, the mounting hole (1a) provided at the other end of the base material layer (1) is a threaded hole, and the second connecting body (6e) and the mounting hole (1a) are matched through threads.

5. The stable SPC floor according to claim 3, characterized in that: The other end of the second connecting body (6e) is provided with a second opening (6f), and a second expansion protrusion (6g) is provided on the peripheral surface of the second connecting body (6e). The outer diameter of the second expansion protrusion (6g) is larger than the aperture of the mounting hole (1a) on the base material layer (1). When the second connecting body (6e) is inserted into the mounting hole (1a), the second expansion protrusion (6g) is squeezed by the hole wall of the mounting hole (1a), so that the tenon (6) and the mounting hole (1a) are interference-fitted.

6. The stable SPC floor according to claim 5, characterized in that: The mounting hole (1a) is a stepped hole, and the second connecting body (6e) is further provided with a limiting step (6h). The diameter of the limiting step (6h) is larger than the outer diameter of the second expansion protrusion (6g). The limiting step (6h) cooperates with the large-diameter hole of the mounting hole (1a), and the second connecting body (6e) and the second expansion protrusion (6g) cooperate with the small-diameter hole of the mounting hole (1a).

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