Multi-layer composite snap-fit SPC floor

Abstract

The utility model discloses a kind of multilayer composite buckling SPC floor, it is related to composite floor technical field.Multilayer composite buckling SPC floor, male buckle and female buckle cooperation design and linkage fixed structure, realize quick and easily automated installation, without additional tool, greatly improve installation efficiency;In use, floor structure is stable, bearing lock tongue, anti-displacement groove and convex tooth, limiting rubber strip and limiting groove synergistic effect, prevent floor transverse and longitudinal movement, guarantee overall flatness;Meanwhile, each layer material plays outstanding performance, anti-skid layer enhances friction and prevents sliding, buffer layer sound absorption and shock attenuation, SPC base material layer because of glass fiber grid improves strength and waterproof and mildewproof, decorative layer yellowing resistance and beautiful, wear-resistant layer is resistant to scratch;Wear-resistant coating, elastic rubber strip and telescopic column etc. design at lock catch, reduce abrasion, cope with temperature deformation, prolong the service life of floor, can also adapt to complex environment such as humid, bring comfortable, safe, durable use experience for user.

Description

Technical Field

[0001] This utility model relates to the field of composite flooring technology, specifically a multi-layer composite interlocking SPC flooring. Background Technology

[0002] SPC click-lock flooring is widely used in various public places, but it is prone to deformation and corrosion, severely affecting its lifespan. For example, patent application number [number missing] discloses a click-lock SPC flooring, including a flooring body. A wear-resistant layer is fixedly connected to the top layer of the flooring body, a middle layer is fixedly connected to the bottom of the wear-resistant layer, and a bottom layer is fixedly connected to the bottom of the middle layer. A groove is fixedly connected to one side of the middle layer, and a snap-fit ​​is fixedly connected to the other side. An adjustable foot is provided at the bottom of the bottom layer, and the adjustable foot is snap-fitted to the flooring body. A positioning block is snap-fitted to one side of the adjustable foot. This click-lock SPC flooring uses adjustable feet to support the flooring body, leaving a gap between the flooring body and the ground to allow moisture and air from the bottom of the flooring body to escape, preventing damage. The adjustable feet can be adjusted according to actual conditions to avoid damage due to uneven ground. The positioning block fixes the adjustable feet to prevent slippage.

[0003] However, while the aforementioned patent addresses the issues of uneven ground and bottom moisture through adjustable feet, improving the flooring's installation adaptability and moisture resistance, the following problems still exist:

[0004] 1. The system uses only a single slot and buckle for fastening, without any auxiliary structure to prevent displacement or shearing. Under high-frequency foot traffic in public places, it is prone to lateral displacement or longitudinal separation, resulting in floor arching and widening of seams.

[0005] 2. The locking mechanism does not mention wear-resistant coating or anti-corrosion design. Long-term exposure to moisture and cleaning agents in public places can easily lead to locking failure due to friction, wear and chemical corrosion, affecting service life. In addition, when the temperature changes or the ground slightly settles, the locking mechanism cannot absorb small deformations and is prone to cracking due to rigid stress concentration. Utility Model Content

[0006] The purpose of this utility model is to provide a multi-layer composite interlocking SPC flooring. Through the interlocking of anti-displacement grooves and protruding teeth, as well as the buffer design of arc-shaped rubber strips and telescopic columns with springs, the connection stability is enhanced. Furthermore, through the multi-point locking structure, the lateral and longitudinal movement of the flooring body during connection is effectively prevented, thus solving the problems in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A multi-layer composite interlocking SPC floor includes a floor body, a male interlocking clip on one side of the floor body, and a female interlocking clip adapted to the male interlocking clip on the opposite side. The male interlocking clip includes a load-bearing locking tongue and an anti-displacement groove, with the anti-displacement groove evenly distributed on the surface of the load-bearing locking tongue. The female interlocking clip includes an interlocking strip adapted to the load-bearing locking tongue and an anti-displacement protrusion adapted to the anti-displacement groove.

[0009] Preferably, a limiting strip is provided on one side of the load-bearing locking tongue, and the limiting strip is movably connected to the floor body through a linkage fixing structure. A limiting groove adapted to the limiting strip is provided on the other side of the snap-fit ​​strip.

[0010] Preferably, the surface of the anti-displacement protrusion is provided with an arc-shaped rubber strip, and the anti-displacement groove is provided with a telescopic column that abuts against the arc-shaped rubber strip.

[0011] Preferably, the linkage fixing structure consists of a translation guide block, a slide rod, and a support rod. One side of the translation guide block is fixedly connected to the slide rod, the lower end of the slide rod is slidably connected to the guide plate through a guide strip, and one end of the slide rod is fixedly connected to the limiting rubber strip.

[0012] Preferably, the lower end of the telescopic column is movably connected to the floor body via a support rod. The floor body has a slot for the support rod to move within it, and a spring is installed in the slot. The spring is fixedly connected to the support rod.

[0013] Preferably, the side of the translation guide block closest to the support rod is set as an inclined surface and provided with a guide groove, and the support rod is engaged with the translation guide block through the guide groove.

[0014] Preferably, the flooring body is provided with an anti-slip layer, a buffer layer, an SPC substrate layer, a decorative layer and a wear-resistant layer from bottom to top, and the SPC substrate layer forms an integral part with the male and female interlocking threads.

[0015] Preferably, the buffer layer has a honeycomb structure inside, and a glass fiber mesh is embedded in the SPC substrate layer.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This multi-layered composite interlocking SPC flooring features a male and female interlocking design and a linked fixing structure, enabling quick and easy automated installation without the need for additional tools, greatly improving installation efficiency. During use, the flooring structure remains stable; the load-bearing locking tongue, anti-displacement grooves and teeth, and limiting strips and grooves work together to prevent lateral and longitudinal movement, ensuring overall flatness. Simultaneously, each layer of material exhibits excellent performance: the anti-slip layer enhances friction and prevents slippage; the cushioning layer absorbs sound and dampens vibrations; the SPC substrate layer is strengthened by a fiberglass mesh and is waterproof and mildew-proof; the decorative layer resists yellowing and is aesthetically pleasing; and the wear-resistant layer is scratch-resistant. Furthermore, the wear-resistant coating at the locking points, elastic strips, and expansion joints reduce wear, cope with temperature deformation, extend the flooring's lifespan, and adapt to complex environments such as humidity, providing users with a comfortable, safe, and durable experience. Attached Figure Description

[0018] Figure 1 This is an axonometric view of the floor body of this utility model;

[0019] Figure 2 This is a front sectional view of the floor body of this utility model during installation.

[0020] Figure 3 This is a schematic diagram of the linkage fixing structure of this utility model;

[0021] Figure 4 This is an enlarged schematic diagram of point A in this utility model;

[0022] Figure 5 This is a cross-sectional view of the floor body of this utility model.

[0023] In the diagram: 1. Floor body; 11. Anti-slip layer; 12. Buffer layer; 13. SPC substrate layer; 14. Decorative layer; 15. Wear-resistant layer; 2. Male snap fastener; 21. Load-bearing locking tongue; 22. Anti-displacement groove; 23. Limiting strip; 24. Linkage fixing structure; 241. Translation guide block; 242. Slide rod; 243. Support rod; 244. Guide plate; 245. Spring; 25. Telescopic column; 3. Female snap fastener; 31. Snap-fit ​​strip; 32. Anti-displacement protrusion; 33. Arc-shaped strip; 34. Limiting groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The present invention will be further described below with reference to specific embodiments:

[0026] To solve the problem, such as Figure 1-5 As shown, this embodiment provides the following solution:

[0027] A multi-layer composite interlocking SPC flooring includes a flooring body 1. A male interlocking clip 2 is provided on one side of the flooring body 1, and a female interlocking clip 3 adapted to the male interlocking clip 2 is provided on the opposite side. The male interlocking clip 2 includes a load-bearing locking tongue 21 and an anti-displacement groove 22. The anti-displacement groove 22 is evenly distributed on the surface of the load-bearing locking tongue 21. The female interlocking clip 3 includes an interlocking strip 31 adapted to the load-bearing locking tongue 21 and an anti-displacement protrusion 32 adapted to the anti-displacement groove 22. A limiting strip 23 is provided on one side of the load-bearing locking tongue 21, and one side of the limiting strip 23 is movably connected to the flooring body 1 via a linkage fixing structure 24. A limiting groove 34 adapted to the limiting strip 23 is provided on one side of the interlocking strip 31. An arc-shaped strip 33 is provided on the surface of the anti-displacement protrusion 32. The arc-shaped strip 33 is an elastic silicone strip. A telescopic post 25 abutting against the arc-shaped strip 33 is provided inside the anti-displacement groove 22, and the inner wall of the groove is provided with a polytetrafluoroethylene wear-resistant coating to reduce wear during interlocking.

[0028] In this embodiment, the front end of the snap-fit ​​strip 31 is tilted upward by 5°-8°, and the gap between the snap-fit ​​strip 31 and the load-bearing locking tongue 21 is 0.1-0.2mm.

[0029] In this embodiment, the floor body 1 is inserted obliquely into the load-bearing locking tongue 21 of the male buckle 2 of another floor body 1 via the snap-fit ​​strip 31 of the female buckle 3. The front end of the snap-fit ​​strip 31 is tilted upward as a guide slope to reduce friction and resistance during initial insertion. The load-bearing locking tongue 21 can slide more smoothly into the depth of the snap-fit ​​strip 31. Through the snap-fit ​​cooperation of the anti-displacement groove 22 and the anti-displacement protrusion 32, the lateral shear force can be dispersed. With the longitudinal constraint of the limiting rubber strip 23 embedded in the limiting groove 34, a multi-point locking structure is formed, which effectively prevents the lateral and longitudinal movement of the floor body 1 during connection, ensuring the overall flatness and stability of the floor after installation. The elastic deformation of the arc-shaped rubber strip 33 and the abutting telescopic column 25, combined with the spring 245, can eliminate the slight deformation of the floor caused by temperature changes after installation, and avoid the buckle cracking caused by rigid friction. At the same time, the linkage fixing structure 24 drives the limiting rubber strip 23 to automatically embed into the limiting groove 34, improving the ease of installation.

[0030] In this embodiment, the linkage fixing structure 24 consists of a translation guide block 241, a slide rod 242, and a support rod 243. One side of the translation guide block 241 is fixedly connected to the slide rod 242. The lower end of the slide rod 242 is slidably connected to the guide plate 244 through a guide strip. One end of the slide rod 242 is fixedly connected to the limiting rubber strip 23. The lower end of the telescopic column 25 is movably connected to the floor body 1 through the support rod 243. The floor body 1 is provided with a slot for the support rod 243 to move. A spring 245 is installed in the slot. The spring 245 is fixedly connected to the support rod 243. The side of the translation guide block 241 near the support rod 243 is set as an inclined surface and is provided with a guide groove. The support rod 243 is engaged with the translation guide block 241 through the guide groove.

[0031] In this embodiment, when the anti-displacement protrusion 32 is inserted into the anti-displacement groove 22, the arc-shaped rubber strip 33 squeezes and pushes the telescopic column 25 downward, thereby moving downward synchronously with the support rod 243 fixed to the telescopic column 25, and compressing the spring 245 synchronously. At the same time, the translation guide block 241 is translated to one side by the force of the inclined surface, driving the slide rod 242 to slide smoothly along the guide groove of the guide plate 244, and finally pushing the limiting rubber strip 23 to accurately embed into the limiting groove 34. The whole process does not require additional tools or manual locking, realizing the synchronous completion of the insertion and locking actions, which greatly improves the installation efficiency. Moreover, when the ambient temperature changes and the floor expands and contracts due to heat, the elastic deformation of the spring 245 can absorb the small displacement, ensuring the locking force after temperature change. The linkage fixing structure 24 strengthens the integrity and durability of the lock, providing core support for the stable use of multi-layer composite SPC flooring.

[0032] In this embodiment, the floor body 1 is provided with an anti-slip layer 11, a buffer layer 12, an SPC substrate layer 13, a decorative layer 14, and a wear-resistant layer 15 from bottom to top. The SPC substrate layer 13 forms an integral part with the male snap fastener 2 and the female snap fastener 3. The bottom of the anti-slip layer 11 has fine diagonal grooves to increase friction with the base layer and prevent slippage. The buffer layer 12 is an IXPE closed-cell foam layer with a honeycomb structure inside and a thickness of 0.5-1.0mm. It absorbs sound and reduces vibration, thus reducing walking noise. The SPC substrate layer 13 has embedded glass fiber mesh with a spacing of 5-10mm to increase load-bearing strength and provide waterproof and mildew-proof properties. The surface of the decorative layer 14 is provided with a hydrophobic coating with a water contact angle ≥110°. The simulated wood grain enhances the aesthetics of the floor and is resistant to yellowing. The wear-resistant layer 15 is a UV-cured transparent layer with uniformly distributed alumina wear-resistant particles inside. The wear-resistant layer has a thickness of 0.1-0.3mm and is scratch-resistant and wear-resistant.

[0033] In this embodiment, through the synergistic effect of the anti-slip layer 11, buffer layer 12, SPC substrate layer 13, decorative layer 14, and wear-resistant layer 15, the anti-slip stability, quiet comfort, and structural strength of the floor body 1 are effectively guaranteed, and the deformation resistance and moisture-proof and waterproof performance of the floor body 1 are improved. The male and female interlocking buckles 2 and 3 are integrally formed with the SPC substrate layer 13 to eliminate stress concentration points, effectively extending the service life of the floor body 1. This achieves a comprehensive improvement in anti-slip, quiet, strong, waterproof, and durable performance, expands the application scenarios, and also ensures long-term use in humid environments.

[0034] Working principle: During installation, the female buckle 3 is inserted into the male buckle 2 at an angle. The front end of the locking strip 31 is tilted upwards to form a guide slope. The precise fit between the male buckle 2 and the female buckle 3 achieves rapid locking. At the same time, the anti-displacement protrusion 32 is inserted into the anti-displacement groove 22. The arc-shaped rubber strip 33 on its surface is deformed under pressure, pushing the telescopic column 25 in the groove downwards. This drives the support rod 243 connected to it to move synchronously along the slot and compress the spring 245. During the downward movement of the support rod 243, the translation guide block 241 is laterally translated by the force through the inclined guide groove, driving the slide rod 242 to slide smoothly along the guide strip of the guide plate 244, and finally pushing the limit. The adhesive strip 23 is precisely embedded in the limiting groove 34, realizing automated installation that locks upon insertion without the need for additional tools. During use, the load-bearing locking tongue 21 and the snap-fit ​​strip 31 bear the vertical load, the anti-displacement groove 22 and the teeth 32 dissipate the lateral shear force, and the limiting adhesive strip 23 and the limiting groove 34 restrict longitudinal movement. The diagonal pattern at the bottom of the anti-slip layer 11 enhances the friction with the base layer, the honeycomb structure of the buffer layer 12 absorbs the vibration of stepping and reduces noise, the glass fiber mesh of the SPC substrate layer 13 improves the load-bearing strength, and the hydrophobic coating of the decorative layer 14 and the alumina particles of the wear-resistant layer 15 respectively achieve waterproof and yellowing-resistant and scratch-resistant properties.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer composite locking SPC floor, comprising a floor body (1), characterized in that, The floor body (1) has a male buckle (2) on one side and a female buckle (3) that matches the male buckle (2) on the opposite side. The male buckle (2) includes a load-bearing locking tongue (21) and an anti-displacement groove (22). The anti-displacement groove (22) is evenly distributed on the surface of the load-bearing locking tongue (21). The female buckle (3) includes a snap-fit ​​strip (31) that matches the load-bearing locking tongue (21) and an anti-displacement protrusion (32) that matches the anti-displacement groove (22).

2. The multi-layer composite fastened SPC floor according to claim 1, wherein, The load-bearing locking tongue (21) is provided with a limiting strip (23) on one side. The limiting strip (23) is movably connected to the floor body (1) through a linkage fixing structure (24). The snap-fit ​​strip (31) is provided with a limiting groove (34) that is compatible with the limiting strip (23) on one side.

3. The multi-layer composite fastened SPC floor according to claim 2, wherein, The surface of the anti-displacement protrusion (32) is provided with an arc-shaped rubber strip (33), and the anti-displacement groove (22) is provided with a telescopic column (25) that abuts against the arc-shaped rubber strip (33).

4. The multi-layer composite fastened SPC floor according to claim 3, wherein, The linkage fixing structure (24) consists of a translation guide block (241), a slide rod (242) and a support rod (243). One side of the translation guide block (241) is fixedly connected to the slide rod (242). The lower end of the slide rod (242) is slidably connected to the guide plate (244) through a guide strip. One end of the slide rod (242) is fixedly connected to the limiting rubber strip (23).

5. The multi-layer composite snap-fit SPC floor according to claim 4, wherein, The lower end of the telescopic column (25) is movably connected to the floor body (1) via a support rod (243). The floor body (1) has a slot for the support rod (243) to move, and a spring (245) is installed in the slot. The spring (245) is fixedly connected to the support rod (243).

6. The multi-layer composite snap-fit SPC floor according to claim 5, wherein, The translation guide block (241) is set as an inclined surface and has a guide groove on the side near the support rod (243). The support rod (243) is engaged with the translation guide block (241) through the guide groove.

7. The multi-layer composite fastened SPC floor panel of claim 1, wherein, The floor body (1) is provided with an anti-slip layer (11), a buffer layer (12), an SPC substrate layer (13), a decorative layer (14) and a wear-resistant layer (15) from bottom to top. The SPC substrate layer (13) forms an integral part with the male fastener (2) and the female fastener (3).

8. The multi-layer composite snap-fit SPC floor according to claim 7, characterized in that, The buffer layer (12) has a honeycomb structure inside, and a glass fiber mesh is embedded in the SPC substrate layer (13).

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