A universal wood-plastic floor fast dismounting system

Abstract

The application discloses a universal wood-plastic floor quick dismounting system, which comprises a floor block, a bearing keel and a universal quick dismounting fastener. The quick dismounting fastener is fixed to the bearing keel through a horizontal base plate, and an elastic buckle arm can be directly connected with an original inherent groove on the side edge of the floor block, and an unlocking gap is formed after adjacent floor blocks are spliced. The application does not need to reform the structure of the floor block, and can be quickly installed by manual pressing. A pry is inserted into the unlocking gap to realize non-damage independent dismounting of a single floor block. The fastener can be repeatedly used and ensures flat and sealed secondary installation. The system is suitable for most wood-plastic floors on the market, has strong universality, is convenient to install, has high construction efficiency, effectively reduces installation and maintenance difficulty, and has good practicability and economy.

Description

Technical Field

[0001] This invention relates to the field of floor fasteners, and more specifically to a universal quick-installation and removal system for wood-plastic composite flooring. Background Technology

[0002] Wood-plastic composite (WPC) flooring, as an environmentally friendly, weather-resistant, and long-lasting composite material flooring product, has been widely used in outdoor landscaping, villa platforms, and interior decoration. Its ease of installation and versatility have become a key focus of the industry. Currently, most existing WPC flooring installation systems use adhesive, nailing, or specialized snap-fit ​​structures, which have several technical drawbacks.

[0003] Adhesive and nail-mounted installations are not only cumbersome and inefficient, but also prone to damaging wood-plastic composite (WPC) flooring. Furthermore, subsequent repairs and replacements require complete disassembly, which is time-consuming, labor-intensive, and significantly increases maintenance costs. While dedicated snap-fit ​​structures simplify the installation process to some extent, their compatibility with the flooring panels is poor. They typically require additional grooves to be cut into the sides of the panels, making them incompatible with existing WPC flooring panels with built-in grooves. This lack of versatility increases installation costs and construction complexity. Therefore, developing an installation system that can adapt to existing WPC flooring panels with built-in grooves, requires no additional grooving, is easy to install and disassemble, and is highly versatile, addressing the pain points of poor versatility, cumbersome installation and disassembly, and inconvenient maintenance in existing technologies, has become a pressing technical problem to be solved in this field. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art and provide a universal wood-plastic flooring quick installation and removal system.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] A universal wood-plastic flooring quick-release system includes flooring panels, a supporting joist, and universal quick-release fasteners. The universal quick-release fasteners include a horizontal base plate and an elastic locking arm. The horizontal base plate is fixed to the supporting joist, and the elastic locking arm is designed to directly engage with a pre-existing groove on the side of the flooring panel. An unlocking gap is formed between adjacent flooring panels after splicing.

[0007] This invention requires no additional processing or modification to the existing floor tile structure. The universal quick-release fastener is fixed to the supporting joists via a horizontal base plate. Its elastic locking arms can directly engage with pre-existing grooves on the sides of the floor tiles. Without the need for screwdrivers, hammers, or other specialized tools, operators only need to manually align the floor tiles with the elastic locking arms and press them down to quickly fix the floor tiles to the supporting joists. The splicing is highly efficient and convenient, significantly reducing installation difficulty. Even non-professionals can easily operate it, effectively shortening the construction cycle and improving construction efficiency. Adjacent floor tiles can be spliced... The resulting unlocking gap provides convenient operation space for disassembly. During disassembly, simply insert a simple pry tool into the gap and gently pry to separate the elastic clip arm from the inherent groove, achieving non-destructive disassembly and assembly of floor panels. This solves the problem of traditional floor repair requiring overall prying and disassembly, allowing for independent disassembly and repair of individual floor panels. Furthermore, the universal quick-release fastener can restore elasticity to ensure a flat and sealed secondary installation. Compared to the drawbacks of existing quick-release fasteners that require special floor grooves and have a narrow range of applications, this fastener can be adapted to the vast majority of wood-plastic composite flooring on the market and is compatible with ordinary fasteners, demonstrating significant advantages in versatility.

[0008] Preferably, the elastic buckle arm includes a support plate integrally formed with the horizontal base plate and an arc-shaped cantilever structure extending upward from the support plate.

[0009] The integrally molded support plate of this invention can ensure the overall structural strength of the buckle arm and avoid deformation under stress. The upwardly extending arc-shaped cantilever structure has excellent elastic deformation capability. When snapped in, it can fit tightly into the inherent groove, improving the connection firmness. At the same time, it is easy to quickly reset when disassembling, avoiding jamming or damage.

[0010] Preferably, the arc-shaped cantilever structure extends upward from the supporting upright plate and bends towards the horizontal base plate. The arc-shaped cantilever structure includes a protruding auxiliary inclined surface, a pressing and guiding inclined surface, and a positioning and holding inclined surface that are connected smoothly in sequence.

[0011] This invention features a press-and-guide ramp that guides the floor tiles to easily align with the snap-fit ​​position. Operators can smoothly press and complete the splicing without precise alignment, further reducing installation difficulty and improving splicing efficiency. The positioning and holding ramp can closely fit the inner wall of the floor tile's inherent groove, enhancing positioning stability after snapping and effectively preventing floor tile displacement or loosening. The pry-out auxiliary ramp, during disassembly, can work with the unlocking gap and pry tool force to guide the arc-shaped cantilever structure to smoothly deform elastically and quickly detach from the inherent groove, avoiding jamming or structural damage and ensuring stable, non-destructive disassembly and assembly. At the same time, in conjunction with the bending layout of the support plate, it further optimizes the force-bearing performance of the elastic buckle arm, balancing structural strength and elastic deformation capability, adapting to the shape of the floor tile's inherent groove, and helping to improve the fastener's versatility and overall service life.

[0012] Preferably, the end of the positioning and holding inclined surface is integrally formed with a downwardly arched arc-shaped resistance surface. The arc-shaped resistance surface can form a stable elastic abutment and limiting effect with the mating parts. During assembly or under stress, it can effectively increase the contact area, disperse local stress, and avoid damage to the parts caused by stress concentration. At the same time, the downwardly arched arc structure can provide moderate elastic deformation and rebound force, enhance the holding reliability and anti-loosening ability of the positioning and holding structure, and improve the stability and service life of the overall structure.

[0013] Preferably, the horizontal base plate is further provided with a limiting plate, which is located on the right side of the supporting plate. Without the limiting plate, when there is a deviation in the size of the floor, it is easy to cause uneven gaps between the floorboards and uneven installation, affecting the installation accuracy and appearance.

[0014] Preferably, the horizontal base plate has mounting holes located in the middle of the horizontal base plate. The wood-plastic flooring quick-release fasteners are fixed by fixing screws to the keel through the mounting holes.

[0015] Preferably, the bottom of the horizontal base plate is provided with an elastic hook, and the supporting keel is formed with a C-shaped groove that cooperates with the elastic hook along its length. The elastic hook is an inverted U-shaped structure that bends downward, and a guide slope is provided on the outer side of its free end to guide the elastic hook into the C-shaped groove. The top of the guide slope is provided with an anti-detachment protrusion to prevent the elastic hook from detaching. A transverse reinforcing rib is provided in the middle of the C-shaped groove.

[0016] The universal quick-release fastener of this invention, in conjunction with a load-bearing keel with a specific cross-section featuring a C-shaped slot, enables direct nail-free installation, completely eliminating the nailing process and significantly improving installation efficiency. The inverted U-shaped elastic hook at the bottom of the horizontal base plate cooperates with the C-shaped slot of the load-bearing keel. Utilizing the downward bending structure of the inverted U-shape of the elastic hook, it can be directly pressed and inserted from the opening above the load-bearing keel, requiring no additional fixing tools such as screws, thus meeting the needs of rapid installation. The guide slope at the free end of the elastic hook guides it smoothly into the C-shaped slot, preventing jamming and further improving installation efficiency and reducing operational difficulty. The anti-detachment protrusion at the top of the guide slope firmly engages after the hook slides into the slot, effectively preventing the elastic hook from detaching from the C-shaped slot, ensuring the firmness of the connection between the horizontal base plate and the load-bearing keel, and preventing loosening due to long-term use or vibration. The entire mating structure utilizes the principle of elastic interlocking, allowing for easy installation by pressing and easy fitting into the flooring groove by sliding. It balances the convenience of nail-free installation with connection stability, further optimizing the system's assembly and disassembly efficiency and overall reliability, and adapting to various paving needs.

[0017] Preferably, the horizontal base plate is further provided with an anti-displacement positioning mechanism, which includes a locking rod, a fixing rack, and a pressing structure. The fixing rack is located on the transverse reinforcing rib and is arranged along the length direction of the bearing keel. The pressing structure is located on the horizontal base plate. The locking rod is located at the bottom of the pressing structure and cooperates with the fixing rack. The bottom of the locking rod is triangular and can be accurately engaged in the tooth groove of the fixing rack to achieve reliable positioning.

[0018] This invention uses a fixed rack positioned along the length of the load-bearing keel on a transverse reinforcing rib. A pressing structure drives a bottom locking rod to precisely engage with the fixed rack. The bottom of the locking rod is triangular, allowing it to quickly and securely engage with the toothed groove of the fixed rack. This facilitates engagement and positioning, enhances the locking force after engagement, and prevents the locking rod from detaching from the rack. This effectively prevents the fastener from sliding or shifting along the length of the load-bearing keel, further strengthening the overall stability of the system connection.

[0019] Preferably, the pressing structure includes a pressing shell, a fixed shell, a return spring, and a moving claw. The fixed shell is fixed to the bottom of the horizontal base plate. The pressing shell is slidably disposed within the horizontal base plate and the fixed shell. A fixing block is provided in the middle of the fixed shell. The locking rod is slidably disposed on the fixing block. The return spring is disposed between the locking rod and the pressing shell. A sliding groove is provided in the transverse direction of the fixed block. The moving claw is slidably disposed in the sliding groove. A semi-through groove is provided in the direction from the front side to the rear side of the locking rod. The moving claw is disposed in the semi-through groove. A driving inclined surface is provided on the inner wall of the pressing shell. Inclined surfaces that cooperate with the driving inclined surface are provided on both sides of the moving claw.

[0020] When the pressing shell of this invention is pressed, the driving inclined surface on its inner wall interacts with the inclined surfaces on both sides of the moving claw, pushing the moving claw to slide along the slide groove. Then, through the semi-through groove on the locking rod, the locking rod is driven to retract along the fixed block, avoiding excessive compression between the locking rod and the fixed rack during the fastener insertion into the bearing keel. After insertion, the pressing shell is released, the return spring automatically resets, pushing the locking rod downwards so that its bottom triangular structure accurately engages in the tooth groove of the fixed rack, achieving a firm lock. The entire pressing structure is easy to operate and has a smooth transmission. The return spring ensures the stability of the locking state of the locking rod, while realizing convenient operation of pressing to unlock and releasing to lock. It avoids the risk of damage to the locking rod and ensures the reliable operation of the anti-displacement positioning mechanism. Together with the locking rod and the fixed rack, it further enhances the positioning effect of the fastener, taking into account both ease of operation and structural protection.

[0021] In summary, the beneficial effects of this invention are as follows:

[0022] 1. This invention requires no additional processing or modification to the original floorboard structure. The universal quick-release fastener is fixed to the supporting joists via a horizontal base plate. Its elastic latching arms can directly engage with the pre-existing grooves on the side of the floorboards. Without the need for professional tools such as screwdrivers and hammers, operators only need to manually align the floorboards with the elastic latching arms and press them down to quickly fix the floorboards to the supporting joists. The splicing is efficient and convenient, greatly reducing the difficulty of installation. Even non-professionals can easily operate it, effectively shortening the construction cycle and improving construction efficiency. The unlocking gap formed after the splicing of adjacent floorboards provides convenient operation space for disassembly. During disassembly, a simple pry tool can be inserted into the gap and gently pried to separate the elastic latching arms from the pre-existing grooves, achieving non-destructive disassembly and assembly of the floorboards. This greatly improves the reusability of floorboards and reduces material waste. Compared with the disadvantages of existing quick-release fasteners that require special floorboard grooves and have a narrow range of applications, this fastener can be adapted to most wood-plastic composite flooring on the market and is interchangeable with ordinary fasteners, demonstrating significant advantages in versatility.

[0023] 2. The present invention features a press-and-guide ramp that guides the floor tiles to easily align with the snap-fit ​​position. Operators can smoothly press and complete the splicing without precise alignment, further reducing installation difficulty and improving splicing efficiency. The positioning and holding ramp can closely fit the inner wall of the inherent groove of the floor tile, enhancing the positioning stability after snapping and effectively preventing the floor tile from shifting or loosening. The pry-out auxiliary ramp, when disassembling, can cooperate with the unlocking gap and the force of the pry tool to guide the arc-shaped cantilever structure to smoothly deform elastically and quickly detach from the inherent groove, avoiding jamming or structural damage and ensuring the stability of non-destructive disassembly and assembly. At the same time, in conjunction with the bending layout of the support plate, it further optimizes the force performance of the elastic buckle arm, taking into account both structural strength and elastic deformation capability, adapting to the shape of the inherent groove of the floor tile, and helping to improve the versatility of the fasteners and the overall service life.

[0024] 3. The universal quick-release fastener of the present invention, when used with a load-bearing keel with a specific cross-section of C-shaped slot, can directly achieve nail-free installation, completely eliminating the nailing process and greatly improving installation efficiency;

[0025] 4. In this invention, a fixed rack is set on the transverse reinforcing rib along the length of the bearing keel. The pressing structure drives the bottom locking rod to precisely engage with the fixed rack. The bottom of the locking rod is triangular, which can quickly and firmly engage into the tooth groove of the fixed rack. This facilitates engagement and positioning, enhances the locking force after engagement, and prevents the locking rod from disengaging from the rack. This effectively prevents the fastener from sliding and shifting along the length of the bearing keel, further enhancing the overall stability of the system connection.

[0026] 5. When the pressing shell is pressed, the driving inclined surface cooperates with the inclined surface of the moving claw, driving the locking rod to retract along the fixed block, preventing it from being squeezed and damaged by the fixed rack; when the pressing shell is released, the return spring pushes the locking rod to extend, and the triangular structure at the bottom engages with the fixed rack to achieve locking. This structure is easy to operate, has smooth transmission, and combines protection and positioning stability, ensuring the reliable operation of the anti-displacement positioning mechanism. Attached Figure Description

[0027] Figure 1 This is an overall schematic diagram of the invention;

[0028] Figure 2 This is a schematic diagram of the universal quick-release fastener and floor panel after installation.

[0029] Figure 3 This is a side view schematic diagram of the universal quick-release fastener of Embodiment 1 of the present invention;

[0030] Figure 4 This is a three-dimensional schematic diagram of the universal quick-release fastener of Embodiment 1 of the present invention;

[0031] Figure 5 This is a three-dimensional schematic diagram of the universal quick-release fastener of Embodiment 2 of the present invention;

[0032] Figure 6 This is a cross-sectional schematic diagram of the universal quick-release fastener and the load-bearing keel of Embodiment 2 of the present invention;

[0033] Figure 7 This is a schematic diagram of the general-purpose wood-plastic flooring quick-assembly and disassembly system of Embodiment 2 of the present invention;

[0034] Figure 8 This is a cross-sectional schematic diagram of the anti-displacement positioning mechanism of the present invention;

[0035] Figure 9 This is a cross-sectional schematic diagram of the retraction of the locking rod in the anti-displacement positioning mechanism of the present invention;

[0036] Figure 10 This is a three-dimensional schematic diagram of the lever of the present invention;

[0037] Figure 11 This is a schematic diagram of the load-bearing keel in Embodiment 3 of the present invention;

[0038] Markings in the diagram: 1. Floor panel; 3. Supporting keel; 2. Universal quick-release fastener; 21. Horizontal base plate; 22. Elastic latch arm; 11. Inherent groove; 12. Unlocking gap; 221. Supporting upright plate; 222. Arc-shaped cantilever structure; 224. Protruding auxiliary slope; 223. Pressing guide slope; 225. Positioning and holding slope; 226. Arc-shaped resistance surface; 23. Limiting upright plate; 211. Mounting hole; 212. Elastic hook; 31. C Type of slot; 2121, guide slope; 2122, anti-detachment protrusion; 311, transverse reinforcing rib; 24, anti-displacement positioning mechanism; 241, locking rod; 242, fixing rack; 25, pressing structure; 251, pressing shell; 252, fixing shell; 253, return spring; 254, moving claw; 256, fixing block; 257, slide groove; 231, semi-through groove; 255, driving slope; 2541, inclined surface. Detailed Implementation

[0039] The following specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. Those skilled in the art can make modifications to these embodiments without contributing any inventive step after reading this specification, but such modifications are protected as long as they fall within the scope of the claims of the present invention.

[0040] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] Example 1

[0042] according to Figures 1-2 As shown, a universal wood-plastic flooring quick-release system includes flooring panels 1, supporting joists 3, and universal quick-release fasteners 2. The universal quick-release fasteners 2 include a horizontal base plate 21 and an elastic latching arm 22. The horizontal base plate 21 is fixed to the supporting joists 3. The elastic latching arm 22 is designed to directly engage with the pre-existing groove 11 on the side of the flooring panel 1. An unlocking gap 12 is formed between adjacent flooring panels 1 after splicing. The flooring panel 1 in this case is a flooring panel with a groove.

[0043] according to Figures 3-4As shown, the elastic latching arm 22 includes a support plate 221 integrally formed with the horizontal base plate 21 and an arc-shaped cantilever structure 222 extending upward from the support plate 221. The arc-shaped cantilever structure 222 extends upward from the support plate 221 and bends towards the horizontal base plate 21. The arc-shaped cantilever structure 222 includes a protruding auxiliary inclined surface 224, a pressing and guiding inclined surface 223, and a positioning and holding inclined surface 225 connected in sequence. The end of the positioning and holding inclined surface 225 is integrally formed with a downwardly arched arc-shaped resistance surface 226. A limiting plate 23 is also provided on the horizontal base plate 21, located on the right side of the support plate 221. A mounting hole 211 is provided on the horizontal base plate 21, located in the middle of the horizontal base plate 21. The elastic latching arm 22 can cushion the floor. The telescopic displacement avoids problems such as arching and abnormal noise, improving the stability and service life of the installation. The system has a simple structure, low manufacturing cost, requires no auxiliary materials, and is suitable for use in multiple scenarios, combining practicality and economy. There are two elastic buckle arms 22 and two limiting plates 23. The two elastic buckle arms 22 are symmetrically arranged on both sides of the horizontal base plate 21. The two limiting plates 23 are respectively located on one side of the two elastic buckle arms 22 and cooperate with the elastic buckle arms 22 one by one. This can make the force on both sides of the horizontal base plate 21 even, improve the stability and centering after assembly, and effectively avoid the tilting and loosening caused by unilateral force. At the same time, the cooperation of both sides can enhance the overall clamping and positioning effect, ensure uniform gaps and high alignment during floor installation, and improve installation accuracy and structural reliability.

[0044] Working principle: First, the universal quick-release fastener 2 and the load-bearing keel 3 are fixedly installed. The operator can quickly lock and fix the horizontal base plate 21 and the load-bearing keel 3 by passing screws through the mounting holes 211 in the middle of the horizontal base plate 21. The installation method is simple and reliable, requiring no complicated operation.

[0045] After the universal quick-release fastener 2 and the load-bearing keel 3 are fixed, the floor panel 1 is spliced ​​and installed: the operator does not need to make any additional processing or modification to the original floor panel 1, nor does he need to use professional tools such as screwdrivers and hammers. He only needs to manually align the pre-existing groove 11 on the side of the floor panel 1 with the elastic buckle arm 22 and press it gently along the curved cantilever structure 222 and the inclined surface 223.

[0046] During the pressing process, the arc-shaped cantilever structure 222 undergoes elastic deformation. The pressing guide slope 223 guides the floor panel 1 to precisely align with the snap-fit ​​position, allowing for smooth splicing without the need for precise alignment, further reducing installation difficulty and improving splicing efficiency. After pressing into place, the positioning snap-fit ​​slope 225 fits tightly against the inner wall of the inherent groove 11 of the floor panel 1, enhancing the positioning stability after snap-fit ​​and effectively preventing the floor panel 1 from shifting or loosening. The downwardly arched arc-shaped resistance surface 226 integrally formed at the end of the positioning snap-fit ​​slope 225 increases the resistance to the inherent groove. The contact area and friction of body 11 further enhance the snap-fit ​​firmness. At the same time, it can be slightly deformed according to the shape of the inherent groove 11 to adapt to the subtle differences of the inherent groove 11 of different specifications, which helps to improve the versatility of the universal quick-release fastener 2. Among them, the support plate 221 of the elastic snap-fit ​​arm 22 is integrally formed with the horizontal base plate 21, which can ensure the overall structural strength of the snap-fit ​​arm 22 and avoid deformation under force. The bending layout of the arc cantilever structure 222 takes into account both elastic deformation capability and structural stability, which makes it easy to fit the groove when snapping and quickly reset when disassembling.

[0047] After adjacent floorboards 1 are spliced ​​together, an unlocking gap 12 is formed, providing convenient operating space for subsequent disassembly. During disassembly, the operator only needs to insert a simple pry tool into the unlocking gap 12 and gently pry it open. The auxiliary inclined surface 224 can be used in conjunction with the pry tool to guide the floorboard 1 to separate smoothly from the universal quick-release fastener 2, avoiding jamming or structural damage. This achieves non-destructive disassembly of the floorboard 1, solving the problem of traditional floor repair requiring overall prying and disassembly, and enabling independent disassembly and repair of individual floorboards. In addition, the universal quick-release fastener 2 can restore elasticity to ensure flatness and sealing during secondary installation. Compared with the drawbacks of existing quick-release fasteners that require special flooring grooves and have a narrow range of applications, this fastener can be adapted to most wood-plastic composite flooring on the market and is compatible with ordinary fasteners, demonstrating significant advantages in versatility.

[0048] Example 2

[0049] according to Figures 5-7 As shown, the difference from Embodiment 1 above is that the bottom of the horizontal base plate 21 is provided with an elastic hook 212, and the supporting keel 3 is formed with a C-shaped groove 31 along its length direction to cooperate with the elastic hook 212. The elastic hook 212 is an inverted U-shaped structure bent downwards, and a guide slope 2121 is provided on the outer side of its free end to guide the elastic hook 212 into the C-shaped groove 31. The top of the guide slope 2121 is provided with an anti-detachment protrusion 2122 to prevent the elastic hook 212 from detaching. The middle part of the C-shaped groove 31 is provided with a transverse reinforcing rib 311. The transverse reinforcing rib 311 in the middle of the C-shaped groove can enhance the overall structural strength of the groove, prevent the groove from deforming under force, adapt to the holding force of the elastic hook, and extend the service life of the keel and fastener.

[0050] Working principle: First, the universal quick-release fastener 2 and the load-bearing keel 3 are installed without nails. This system is compatible with the load-bearing keel 3 with a specific cross-section of C-shaped slot 31, eliminating the need for screws or other fixing tools and completely eliminating the nailing process. During operation, the operator only needs to hold the universal quick-release fastener 2, align the inverted U-shaped elastic hook 212 at the bottom of the horizontal base plate 21 with the opening above the load-bearing keel 3, and press the elastic hook 212 directly downwards. Relying on its inverted U-shaped downward bending elastic structure, and with the guide of the free end of the elastic hook 212, the system achieves the desired effect. The inclined surface 2121 guides the elastic hook 212 to smoothly slide into the C-shaped groove 31 along the length of the supporting keel 3, avoiding jamming, significantly reducing the difficulty of operation and improving installation efficiency. After the elastic hook 212 is fully slid into the C-shaped groove 31, the anti-detachment protrusion 2122 at the top of the guide inclined surface 2121 will firmly engage with the inner wall of the C-shaped groove 31, effectively preventing the elastic hook 212 from detaching from the C-shaped groove 31, ensuring the firmness of the connection between the horizontal base plate 21 and the supporting keel 3, and avoiding loosening caused by long-term use or vibration. At the same time, the transverse reinforcing rib 311 in the middle of the C-shaped groove 31 can enhance the overall structural strength of the groove, prevent the groove from deforming under force, adapt to the holding force of the elastic hook 212, and extend the service life of the supporting keel 3 and the universal quick-release fastener 2. The entire mating structure relies on the elastic engagement principle to achieve convenient operation of pressing to install and sliding to adapt to the floor groove, taking into account both the convenience of nail-free installation and connection stability.

[0051] Example 3

[0052] according to Figures 8-11As shown, the difference from Embodiment 2 above is that the horizontal base plate 21 is further provided with an anti-displacement positioning mechanism 24. The anti-displacement positioning mechanism 24 includes a locking rod 241, a fixing rack 242, and a pressing structure 25. The fixing rack 242 is provided on the transverse reinforcing rib 311 and is arranged along the length direction of the bearing keel 3. The pressing structure 25 is provided on the horizontal base plate 21. The locking rod 241 is provided at the bottom of the pressing structure 25 and cooperates with the fixing rack 242. The pressing structure 25 includes a pressing shell 251, a fixing shell 252, a return spring 253, and a moving claw 254. The fixing shell 252 is fixed to the bottom of the horizontal base plate 21, and the pressing shell 251 is slidably provided on the horizontal base plate 21 and the fixing rack 252. Inside the housing 252, a fixing block 256 is provided in the middle of the fixed housing 252. The locking rod 241 is slidably disposed on the fixing block 256. The return spring 253 is disposed between the locking rod 241 and the pressing housing 251. A sliding groove 257 is provided in the transverse direction of the fixing block 256. The moving claw 254 is slidably disposed in the sliding groove 257. A semi-through groove 231 is provided in the direction from the front side to the rear side of the locking rod 241. The moving claw 254 is disposed in the semi-through groove 231. A driving inclined surface 255 is provided on the inner wall of the pressing housing 251. Inclined surfaces 2541 that cooperate with the driving inclined surface 255 are provided on both sides of the moving claw 254. The bottom of the locking rod 241 is triangular and can be accurately engaged in the tooth groove of the fixed rack 242 to achieve reliable positioning.

[0053] During installation, first press the pressing shell 251 on the horizontal base plate 21. The driving inclined surface 255 on the inner wall of the pressing shell 251 interacts with the inclined surfaces 2541 on both sides of the moving claw 254, pushing the moving claw 254 to slide along the sliding groove 257 on the fixed block 256. The moving claw 254 drives the locking rod 241 to retract upward along the fixed block 256 through the semi-through groove 231 on the locking rod 241, so that the bottom of the locking rod 241 disengages from the engagement position. At this point, slide the universal quick-release fastener 2 along the length of the bearing keel 3 to the preset position, release the pressing shell 251, and the return spring 253 drives the locking rod 241 to extend downward. The triangular structure at the bottom of the locking rod 241 is inserted into the fixing rack 242 on the transverse reinforcing rib 311, thereby achieving the positioning and locking of the universal quick-release fastener 2 and the bearing keel 3, preventing the fastener 2 from moving along the length of the keel. When the position needs to be adjusted, press the pressing shell 251 again to retract and unlock the locking rod 241. After the position is finely adjusted, release to achieve relocking. At the same time, it can also prevent the locking rod 241 from being excessively squeezed and damaged when the universal quick-release fastener 2 is pressed into the bearing keel 3.

Claims

1. A universal quick-installation and removal system for wood-plastic composite flooring, characterized in that, The system includes a floor panel (1), a load-bearing keel (3), and a universal quick-release fastener (2). The universal quick-release fastener (2) includes a horizontal base plate (21) and an elastic buckle arm (22). The horizontal base plate (21) is fixed to the load-bearing keel (3). The elastic buckle arm (22) is designed to directly engage with the pre-existing groove (11) on the side of the floor panel (1). An unlocking gap (12) is formed between adjacent floor panels (1) after splicing. The bottom of the horizontal base plate (21) is provided with an elastic hook (212). The supporting keel (3) is formed with a C-shaped groove (31) along its length direction to cooperate with the elastic hook (212). The elastic hook (212) is an inverted U-shaped structure bent downward. A guide slope (2121) is provided on the outer side of its free end to guide the elastic hook (212) to slide into the C-shaped groove (31). The top of the guide slope (2121) is provided with an anti-detachment protrusion (2122) to prevent the elastic hook (212) from detaching. A transverse reinforcing rib (311) is provided in the middle of the C-shaped groove (31). The horizontal base plate (21) is also provided with an anti-displacement positioning mechanism (24). The anti-displacement positioning mechanism (24) includes a locking rod (241), a fixing rack (242), and a pressing structure (25). The fixing rack (242) is provided on the transverse reinforcing rib (311). The fixing rack (242) is arranged along the length direction of the bearing keel (3). The pressing structure (25) is provided on the horizontal base plate (21). The locking rod (241) is provided at the bottom of the pressing structure (25) and cooperates with the fixing rack (242). The pressing structure (25) includes a pressing shell (251), a fixing shell (252), a return spring (253), and a moving claw (254). The fixing shell (252) is fixed to the bottom of the horizontal base plate (21). The pressing shell (251) is slidably disposed within the horizontal base plate (21) and the fixing shell (252). A fixing block (256) is provided in the middle of the fixing shell (252). The locking rod (241) is slidably disposed on the fixing block (256). The return spring (253) is disposed on the locking rod (241). Between the pressing shell (251) and the pressing shell (256), a sliding groove (257) is provided in the transverse direction of the fixing block (256), and the moving claw (254) is slidably disposed in the sliding groove (257). A semi-through groove (231) is provided in the direction from the front side to the rear side of the clamping rod (241), and the moving claw (254) is disposed in the semi-through groove (231). A driving inclined surface (255) is provided on the inner wall of the pressing shell (251), and inclined surfaces (2541) that cooperate with the driving inclined surface (255) are provided on both sides of the moving claw (254). The bottom of the latch (241) is triangular and can be precisely engaged in the tooth groove of the fixed rack (242).

2. The universal wood-plastic flooring quick-installation and removal system according to claim 1, characterized in that, The elastic buckle arm (22) includes a support plate (221) integrally formed with the horizontal base plate (21) and an arc-shaped cantilever structure (222) extending upward from the support plate (221).

3. The universal wood-plastic flooring quick-installation and removal system according to claim 2, characterized in that, The arc-shaped cantilever structure (222) extends upward from the supporting upright plate (221) and bends towards the horizontal base plate (21). The arc-shaped cantilever structure (222) includes a protruding auxiliary inclined surface (224), a pressing and guiding inclined surface (223), and a positioning and holding inclined surface (225) that are connected smoothly in sequence.

4. The universal wood-plastic flooring quick-installation and removal system according to claim 3, characterized in that, The end of the positioning and holding slope (225) is integrally formed with a downwardly arched arc-shaped resistance surface (226).

5. A universal wood-plastic flooring quick-installation and removal system according to claim 2, characterized in that, The horizontal base plate (21) is also provided with a limiting plate (23), which is located on the right side of the supporting plate (221).

6. A universal wood-plastic flooring quick-installation and removal system according to claim 1, characterized in that, The horizontal substrate (21) has a mounting hole (211) located in the middle of the horizontal substrate (21).

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