Hanging buckle type hollow wood-plastic floor and assembling method thereof

Abstract

The invention discloses a hanging buckle type hollow wood-plastic floor and an assembling method thereof, and belongs to the technical field of wood-plastic floors. The invention discloses a hanging buckle type hollow wood-plastic floor and an assembling method thereof. The hanging buckle type hollow wood-plastic floor comprises a floor composed of a second plate body, a first plate body located on one side of the second plate body, a first extension piece and a second extension piece located at the lower end of the first extension piece. According to the hanging buckle type hollow wood-plastic floor, the problems that connecting pieces are fixed to the periphery of an existing hanging buckle type hollow wood-plastic floor, additional structures are needed for protecting the connecting pieces, the transportation cost can be increased through additional protection, and the efficiency in the laying process is affected are solved; the floor at the edge position does not need to move, the first connecting block and the second connecting block do not need to be adjusted, the first connecting block and the second connecting block are directly contained in the floor, additional cutting is avoided, and the situation that the protruding first connecting block and the protruding second connecting block need an additional protection structure in the transportation process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wood plastic flooring, in particular to a hook-type hollow wood plastic flooring and an assembling method thereof. Background Art

[0002] The hook-type hollow wood-plastic floor is a new type of floor material with a hollow structure and is installed using a hook-type connection method. It combines the texture of wood and the water-resistant and anti-corrosion properties of plastic. It has the advantages of durability, environmental protection, waterproof and moisture-proof, insect-proof and termite-proof. At the same time, the hook-type design makes installation easier and faster, saving installation time and costs. In addition, the hollow structure also gives it good sound insulation and thermal insulation properties, suitable for a variety of indoor and outdoor environments.

[0003] Chinese patent publication number CN106088527A discloses a hook-type hollow wood-plastic floor. The floor unit body and the connecting parts adopt a split connection method, which facilitates the production, processing, installation and maintenance of the wood-plastic floor. The hollow wood-plastic wood board layer is provided with through square holes, which makes the wood-plastic floor have good elasticity, heat preservation and sound insulation effects, and saves raw materials.

[0004] The above-mentioned patented hook-type hollow wood-plastic flooring has connectors fixed around it. During storage and transportation, additional structures are required to protect the connectors. The additional protection will increase transportation costs. In addition, the protruding connectors will affect the floor space occupied during transportation and the number of floors to be transported. Moreover, when the connectors of the hook-type hollow wood-plastic flooring after splicing are no longer needed, the protruding connectors need to be cut, which affects the efficiency of the laying process. Summary of the Invention

[0005] The object of the present invention is to provide a hook-and-hook hollow wood-plastic floor and an assembly method thereof. By sliding a first connecting block and a second connecting block, sliding and adjusting the orientation of the first connecting block and the second connecting block relative to the third connecting block, the third connecting block is exposed to facilitate direct hook-and-hook splicing of two adjacent floor panels. The floor panels at the edge position do not need to move and adjust the first connecting block and the second connecting block. The first connecting block and the second connecting block are directly stored inside the floor panel, avoiding additional cutting and avoiding the need for additional protective structures for the protruding first connecting block and the second connecting block during transportation, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hook-type hollow wood-plastic floor, comprising a floor consisting of a second plate body, a first plate body located on one side of the second plate body, a first extension piece and a second extension piece located at the lower end of the first extension piece, the first extension piece and the second extension piece being located between the first plate body and the second plate body, a second receiving cavity with a first connecting block being provided on one side of the interior of the first plate body, a first receiving cavity with a second connecting block being provided on the other side of the interior of the second plate body, the outer walls of the first connecting block and the second connecting block being symmetrical and connected to each other by slots, limiting strips connected to the sliding slots of the first connecting block and the second connecting block being provided at the upper and lower ends of the interiors of the first receiving cavity and the second receiving cavity, the connection direction of the first connecting block and the second connecting block corresponding to the third connecting block can be directly adjusted by sliding the first connecting block and the second connecting block, and when it is necessary to hook-type spliced flooring, the first connecting block and the second connecting block are adjusted and the storage and protrusion of the third connecting block are adjusted, thereby avoiding the need for additional cutting and secondary processing of the flooring.

[0007] Preferably, the limiting strip corresponding to the second storage cavity is an integral structure with the first plate body, and the limiting strip corresponding to the first storage cavity is an integral structure with the second plate body. The limiting strip can limit the second connecting block and the first connecting block in different directions and make the second connecting block and the first connecting block continue to stay inside the first storage cavity and the second storage cavity.

[0008] Preferably, the second extension piece is an integral structure with the lower end of the other side of the first plate body, the first extension piece is an integral structure with the upper end of one side of the second plate body, and a shielding piece is provided on the other side of the upper end of the first storage cavity as an integral structure with the second plate body. After the second extension piece and the first extension piece are spliced together, the gap between the two floors formed by the splicing can be blocked by the shielding piece.

[0009] Preferably, a connecting surface is provided at the upper end of the second extension piece, and a connecting ring is provided around the upper end of the connecting surface, which is an integral structure with the second extension piece. A second groove is provided inside the first extension piece, which is recessed toward the connecting ring position, and the second groove is connected to the connecting ring slot. The reserved connecting surface and connecting ring can facilitate the application of glue, facilitate the splicing of the floor, and facilitate the wrapping and restriction of the materials at the fourth groove and the first groove position inside the floor.

[0010] Preferably, a first groove recessed inside the second extension piece is provided around the connecting ring, and a fourth groove recessed inside the first extension piece is provided around the second groove. By pre-placing materials in the first groove and the fourth groove, different requirements of different placement environments can be adapted.

[0011] Preferably, the interior of the fourth groove is laterally distributed with a second reinforcing rib located inside the fourth groove, and the interior of the first groove is laterally distributed with a first reinforcing rib located inside the first groove. The second reinforcing rib and the first reinforcing rib are strip structures. The strength of the floor can be improved by the first reinforcing rib and the second reinforcing rib. While improving the strength, the materials pre-placed in the first groove and the fourth groove can be fixed.

[0012] Preferably, the first plate body and the second plate body are composed of surface wear-resistant material, decorative material, wood-plastic composite substrate, stabilizing material and moisture-proof material in order from top to bottom; the first extension piece and the shielding piece are composed of surface wear-resistant material and decorative material in order from top to bottom; the lower end of the first extension piece corresponding to the decorative material and the second reinforcing rib are both wood-plastic composite substrates; the uppermost end, the connecting ring and the first reinforcing rib of the second extension piece are both wood-plastic composite substrates; the lower end of the second extension piece corresponding to the wood-plastic composite substrate is provided with stabilizing material; the lower end of the second extension piece corresponding to the stabilizing material is provided with moisture-proof material; the floor is composed of multiple materials layer by layer, so that the floor can increase its service life and adapt to different usage requirements.

[0013] Preferably, the limiting strip, the first connecting block and the second connecting block are all made of wood-plastic composite substrates. The wood-plastic composite substrates can improve the strength of the entire floor and the stability of the connection between the two floor panels, thereby preventing the connection between the two floor panels from loosening.

[0014] Preferably, the surface wear-resistant material is polyethylene, the decorative material is digitally printed wood grain paper wrapped with UV light-curing resin, the wood-plastic composite base material is formed by melting wood powder and polypropylene, the stabilizing material is a mixture of cork particles and polyurethane adhesive, and the moisture-proof material is PE film. The PE film can prevent the floor from being damp inside the floor due to moisture in the laying position from bottom to top, thereby improving the service life of the floor.

[0015] A method for assembling a hook-type hollow wood-plastic floor comprises the following steps:

[0016] Step 1: Place the material corresponding to the floor laying position into the first groove inside the second extension piece, and apply glue on the connecting surface and the second groove;

[0017] Step 2: Press the first extension piece connected to the second plate toward the upper end of the second extension piece on the side of the first plate. The material in the first groove is embedded in the fourth groove. The glue in the second groove contacts the connecting ring. The glue in the connecting surface contacts the first extension piece. The glue solidifies to form the floor.

[0018] Step 3: Remove the second connecting block from the first receiving cavity, flip the second connecting block over and insert it back into the first receiving cavity, remove the first connecting block from the second receiving cavity, flip the first connecting block over and insert it back into the second receiving cavity, and the flipped first and second connecting blocks will directly expose the third connecting block connected to each other by the slots;

[0019] Step 4: Apply glue to the connection positions of the two third connecting block slots. The first connecting block corresponds to the third connecting block and the second connecting block corresponds to the third connecting block slot. The slot connection and the solidification of the glue complete the connection of the two floors.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. When assembling the first and second panels of the floor of the present invention, first, the first connecting block can be removed from the second storage cavity inside the first panel. The removed first connecting block can be flipped over and inserted back into the second storage cavity. On the other hand, the second connecting block in the first storage cavity inside the second panel can also be flipped over and inserted back into the corresponding first storage cavity. The second connecting block and the third connecting block exposed when the first connecting block is flipped over can be connected to each other by slotting after applying glue, thereby completing efficient hook-and-hook assembly and ensuring the stability of the two floor panels. The floor panels at the edge can be inserted into the first and second connecting blocks in corresponding orientations without adjustment. The floor panel composed of the first and second panels can adapt to different hook-and-hook requirements and splicing requirements during the splicing process. After the protruding third connecting block is respectively stored in the first and second storage cavities, no additional protective structure is required due to the protruding third connecting block. The protruding third connecting block does not increase the floor space occupied during transportation, thereby affecting the transportation volume. In addition, the fixed and protruding third connecting block does not require the third connecting block to be cut when the floor panel is at the edge.

[0022] 2. According to the present invention, before the first plate and the second plate are spliced and assembled into a floor, the required material can be pre-laid in the first groove position inside the second extension piece. The material will be synchronously pressed into the fourth groove position inside the first extension piece as the first extension piece is pressed. The upper and lower ends of the material are supported and fixed by the second reinforcing ribs and the first reinforcing ribs respectively. The splicable floor can be pre-filled with materials during assembly. The materials can be specifically adjusted according to the laying environment of the floor, can adapt to different installation environments, and improve the comfort of use and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall external structure of the floor of the present invention;

[0024] Figure 2 An exploded view of the first plate and the second plate of the present invention;

[0025] Figure 3 For the present invention Figure 2 A partial enlarged view of area A in the middle;

[0026] Figure 4 This is a schematic diagram of the internal structure of the second groove of the present invention;

[0027] Figure 5 For the present invention Figure 4 A partial enlarged view of area B in the middle;

[0028] Figure 6 This is a schematic diagram of two floors of the present invention after being spliced;

[0029] Figure 7 For the present invention Figure 6 A partial enlarged view of the middle C area;

[0030] Figure 8 This is a cross-sectional view of the internal structure of the floor of the present invention;

[0031] Figure 9 This is a schematic diagram of the material distribution inside the floor of the present invention.

[0032] In the figure: 1. first plate body; 2. second plate body; 3. first extension piece; 4. second extension piece; 5. shielding piece; 6. first connecting block; 7. second connecting block; 8. connecting ring; 9. first reinforcing rib; 10. first groove; 11. connecting surface; 12. second groove; 13. second reinforcing rib; 14. first storage cavity; 15. second storage cavity; 16. third connecting block; 17. third groove; 18. limiting strip; 19. floor; 20. fourth groove. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to specific embodiments.

[0034] Example 1: Figure 1 and Figure 2 As shown, a hook-type hollow wood-plastic flooring of this embodiment includes a flooring 19, which is composed of a first plate body 1, a second plate body 2, a first extension piece 3 and a second extension piece 4. The first plate body 1 is located on one side of the second plate body 2, the second extension piece 4 is located at the lower end between the first plate body 1 and the second plate body 2, and the first extension piece 3 is located at the upper end between the first plate body 1 and the second plate body 2. The first plate body 1 and the second plate body 2 are clamped with the first extension piece 3 and the second extension piece 4 to complete the splicing of the flooring 19;

[0035] Among them, the second extension piece 4 and the lower end of the other side of the first plate body 1 are an integral structure, and the first extension piece 3 and the upper end of one side of the second plate body 2 are an integral structure. The first plate body 1 and the second extension piece 4 of the integral structure and the second plate body 2 and the first extension piece 3 of the integral structure can be efficiently and quickly combined. While the efficient and quick combination is carried out, it is also convenient to additionally fill the required materials for the laying position of the hollow wood-plastic floor, fill the desiccant for the humid position, and provide sound insulation for the position where quietness is required;

[0036] Furthermore, in order to improve the stability of the floor 19 after assembly, as Figure 3 As shown, the upper end of the second extension piece 4 is provided with a connecting surface 11, and the upper end of the connecting surface 11 is surrounded by a connecting ring 8, and the connecting ring 8 and the second extension piece 4 are an integral structure, as shown in FIG. Figure 4 and Figure 5 As shown, the first extension piece 3 is provided with a second groove 12 recessed toward the connection ring 8, and the second groove 12 is connected to the connection ring 8 by a card slot connection. The card slot connection can improve the splicing effect of the floor 19, and the protruding connection ring 8, the recessed second groove 12, and the connection surface 11 are reserved to facilitate the application of glue. The pre-application position of glue is provided, and glue can be directly applied at the card slot connection position, thereby improving the integrity of the floor 19 after splicing.

[0037] It is worth mentioning that a first groove 10 is recessed around the connecting ring 8, and the first groove 10 is recessed inside the second extension piece 4. A fourth groove 20 is recessed around the second groove 12, and the fourth groove 20 is recessed inside the first extension piece 3. The recessed first groove 10 and the second groove 12 will form a hollow area inside the floor 19 after the floor 19 is spliced. The hollow area can provide additional material placement space and can be filled with additional required materials, so that the spliced and used floor can adapt to different usage environments.

[0038] To improve the strength of the assembled floor 19, second reinforcing ribs 13 are laterally distributed within the fourth groove 20, and first reinforcing ribs 9 are laterally distributed within the first groove 10. The second reinforcing ribs 13 and the first reinforcing ribs 9 are strip-shaped structures. The strip-shaped second reinforcing ribs 13 and the first reinforcing ribs 9 can improve the strength of the assembled floor 19.

[0039] It should be noted that the first reinforcing rib 9 and the second extension piece 4 are integrally structured, and the second reinforcing rib 13 and the first extension piece 3 are integrally structured. The second reinforcing rib 13 and the first reinforcing rib 9 are spliced together with the first extension piece 3 and the second extension piece 4 to form the floor panel 19. The first reinforcing rib 9 is located inside the first groove 10, and the second reinforcing rib 13 is located inside the fourth groove 20. The first reinforcing rib 9 and the second reinforcing rib 13 can directly press the material placed in the hollow area formed by the fourth groove 20 and the first groove 10, thereby improving the fixing effect of the material in the hollow position after the floor panel 19 is spliced, further improving the load-bearing capacity of the floor panel 19, and preventing the floor panel 19 from breaking and bending.

[0040] In order to splice and combine the two floor panels 19, a second receiving cavity 15 is provided on one side of the first plate body 1. Figure 6 and Figure 7 As shown, the interior of the second storage cavity 15 is provided with a first connection block 6, and the outer wall of the first connection block 6 is provided with a third connection block 16. After the third connection block 16 is slidably fixed in the interior of the second storage cavity 15, the protruding third connection block 16 can facilitate the assembly of the floor in a hook-and-hook manner;

[0041] Among them, the other side of the interior of the second plate body 2 is recessed to provide a first receiving cavity 14, the interior of the first receiving cavity 14 is provided with a second connecting block 7, and the outer wall of the second connecting block 7 is provided with a third connecting block 16. After the second connecting block 7 is fixed to the interior of the first receiving cavity 14, the two third connecting blocks 16 are respectively exposed to the outside of the floor 19 along with the first connecting block 6 and the second connecting block 7 when splicing is required. The two first connecting blocks 6 are connected by a slot, and the two first connecting blocks 6 are symmetrically arranged. The exposed third connecting blocks 16 of the two floors 19 are connected by a slot to complete the connection of the two spliced floors 19;

[0042] In this embodiment, in order to fill the connection between two adjacent floorboards 19 and to wrap and protect the splicing position of the two third connecting blocks 16, a shielding sheet 5 is provided on the other side of the upper end of the first storage cavity 14. The shielding sheet 5 and the second plate body 2 are integrally structured. The shielding sheet 5 can wrap and protect the gap between the pair of floorboards 19.

[0043] In addition, in order to provide stability for the installation of the first connecting block 6 and the second connecting block 7, limiting bars 18 are provided at the upper and lower ends of the first receiving chamber 14 and the second receiving chamber 15, and the limiting bars 18 are respectively connected to the sliding grooves of the first connecting block 6 and the second connecting block 7. The protruding limiting bars 18 can limit and prevent the first connecting block 6 and the second connecting block 7 from falling off after installation. The strip-shaped first connecting block 6 and the second connecting block 7 can only be removed by sliding the entire strip horizontally. After being restricted by the limiting bars 18, the entire first connecting block 6 will not fall off directly from the sides of the second receiving chamber 15 and the first receiving chamber 14.

[0044] It is worth mentioning that the limiting strip 18 inside the second receiving cavity 15 is an integral structure with the first plate body 1, and the limiting strip 18 inside the first receiving cavity 14 is an integral structure with the second plate body 2. The limiting strip 18 can restrict the first connecting block 6 and the second connecting block 7 after being embedded;

[0045] In order to improve the use effect of the floor 19, Figure 9 As shown, the uppermost ends of the first plate body 1 and the second plate body 2 are both made of surface wear-resistant materials, the lower ends of the first plate body 1 and the second plate body 2 corresponding to the surface wear-resistant materials are provided with decorative materials, the lower ends of the first plate body 1 and the second plate body 2 corresponding to the decorative materials are provided with a wood-plastic composite substrate, the lower ends of the first plate body 1 and the second plate body 2 corresponding to the wood-plastic composite substrate are provided with a stabilizing material, and the lower ends of the first plate body 1 and the second plate body 2 corresponding to the stabilizing material are provided with a moisture-proof material;

[0046] Among them, the uppermost ends of the first extension piece 3 and the shielding piece 5 are made of surface wear-resistant material, and the lower ends of the first extension piece 3 and the shielding piece 5 corresponding to the surface wear-resistant material are provided with decorative material. The lower end of the first extension piece 3 corresponding to the decorative material and the second reinforcing rib 13 are both wood-plastic composite substrates;

[0047] In addition, the uppermost end of the second extension piece 4, the connecting ring 8 and the first reinforcing rib 9 are all made of wood-plastic composite substrates. The lower end of the second extension piece 4 corresponding to the wood-plastic composite substrate is provided with a stabilizing material, and the lower end of the second extension piece 4 corresponding to the stabilizing material is provided with a moisture-proof material.

[0048] It is worth mentioning that the limiting strip 18, the first connecting block 6 and the second connecting block 7 are all wood-plastic composite base materials;

[0049] In this embodiment, the surface wear-resistant material is polyethylene, which can improve the wear resistance and anti-slip effect of the entire floor 19, and the surface wear-resistant material formed by the polyethylene material can improve the cleaning effect of the floor 19. The decorative material is digitally printed wood grain paper wrapped with UV light-curing resin, which can be wrapped and protected by UV light-curing resin. The digitally printed wood grain paper protected by UV light-curing resin can improve the ability to resist direct ultraviolet rays. The wood-plastic composite base material is formed by melting wood powder and polypropylene, and the strength of the floor 19 is improved by melting wood powder and polypropylene. The stabilizing material is a mixture of cork particles and polyurethane adhesive. The stabilizing material can absorb impact force, reduce walking noise, reduce impact noise, and reduce the risk of warping. The moisture-proof material is PE film, which can effectively block water vapor penetration and improve the use effect of the floor 19.

[0050] Example 2, as Figure 8 As shown, in order to reduce the weight of the first plate body 1 and the second plate body 2 and the weight of the entire floor 19, a third groove 17 is reserved in the middle of the first plate body 1 and the second plate body 2. The reserved third groove 17 can further provide an additional hollow structure, which can reduce the weight of the entire floor 19.

[0051] Assembly method: Place the material required for the floor laying position into the first groove 10 inside the second extension piece 4. Dehumidification materials can be placed in the humid position, and desiccant can be placed to keep the inside of the floor dry. If the laying position requires a quiet environment, sound insulation materials can be placed in the first groove 10, and sound insulation cotton can be placed to complete the isolation and adsorption of noise. Apply glue on the surface of the connecting surface 11 and the second groove 12. Place the first plate 1 and the second extension piece 4 directly on the ground. Hold the second plate 2 and press the first extension piece 3 connected to the second plate 2 toward the upper end of the second extension piece 4 on the side of the first plate 1. The material inside the first groove 10 is embedded in the fourth groove 20. The upper and lower ends of the material at the first groove 10 are supported by the second reinforcing rib 13 and the first reinforcing rib 9 respectively. The glue in the second groove 12 is in contact with the connecting ring 8. The connection surface 11 The glue contacts the first extension piece 3, and the glue solidifies to form a floor 19. When the two adjacent floor boards 19 are combined, the second connecting block 7 is movably taken out from the first receiving cavity 14, the second connecting block 7 is flipped over and repeatedly inserted into the first receiving cavity 14, and the first connecting block 6 is movably taken out from the second receiving cavity 15, and the first connecting block 6 is flipped over and repeatedly inserted into the second receiving cavity 15. The flipped first connecting block 6 and the second connecting block 7 will directly expose the third connecting block 16 connected to each other by the slots, and glue is applied to the slot connection positions of the two third connecting blocks 16. The first connecting block 6 corresponds to the third connecting block 16 and the second connecting block 7 corresponds to the third connecting block 16 for slot connection. The slot connection is combined with the solidification of the glue to complete the connection of the two floor boards 19, completing the hook-type combination of the two floor boards 19. At the same time, the shielding piece 5 at the upper end of one side outside the first receiving cavity 14 will block the gap between the two floor boards 19.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0053] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A hook-type hollow wood-plastic floor, characterized in that: The invention relates to a floor (19) comprising a second plate body (2), a first plate body (1) located on one side of the second plate body (2), a first extension piece (3) and a second extension piece (4) located at the lower end of the first extension piece (3), wherein the first extension piece (3) and the second extension piece (4) are located between the first plate body (1) and the second plate body (2), a second receiving cavity (15) having a first connecting block (6) is provided on one side of the interior of the first plate body (1), a first receiving cavity (14) having a second connecting block (7) is provided on the other side of the interior of the second plate body (2), the outer walls of the first connecting block (6) and the second connecting block (7) are respectively provided with third connecting blocks (16) which are symmetrical and connected to each other by slots, and upper and lower ends of the interiors of the first receiving cavity (14) and the second receiving cavity (15) are both provided with limiting bars (18) which are connected to the sliding slots of the first connecting block (6) and the second connecting block (7).

2. The hook-type hollow wood plastic floor according to claim 1, characterized in that: The limiting strip (18) corresponding to the second receiving cavity (15) and the first plate body (1) are an integral structure, and the limiting strip (18) corresponding to the first receiving cavity (14) and the second plate body (2) are an integral structure.

3. The hook-type hollow wood plastic floor according to claim 1, characterized in that: The second extension piece (4) is an integral structure with the lower end of the other side of the first plate body (1), the first extension piece (3) is an integral structure with the upper end of one side of the second plate body (2), and a shielding piece (5) is provided on the other side of the upper end of the first receiving cavity (14) and is an integral structure with the second plate body (2).

4. The hook-type hollow wood plastic floor according to claim 3, characterized in that: The upper end of the second extension piece (4) is provided with a connecting surface (11), and a connecting ring (8) which is an integral structure with the second extension piece (4) is provided around the upper end of the connecting surface (11); a second groove (12) is provided inside the first extension piece (3) and is recessed toward the position of the connecting ring (8), and the second groove (12) is connected to the connecting ring (8) slot.

5. The hook-type hollow wood plastic floor according to claim 4, characterized in that: The connecting ring (8) is provided with a first groove (10) recessed inside the second extension piece (4) at a surrounding position, and the second groove (12) is provided with a fourth groove (20) recessed inside the first extension piece (3) at a surrounding position.

6. The hook-type hollow wood plastic floor according to claim 5, characterized in that: A second reinforcing rib (13) located inside the fourth groove (20) is distributed transversely inside the fourth groove (20), and a first reinforcing rib (9) located inside the first groove (10) is distributed transversely inside the first groove (10), and the second reinforcing rib (13) and the first reinforcing rib (9) are strip-shaped structures.

7. The hook-type hollow wood plastic floor according to claim 6, characterized in that: The first plate body (1) and the second plate body (2) are composed of surface wear-resistant material, decorative material, wood-plastic composite substrate, stabilizing material and moisture-proof material in order from top to bottom; the first extension piece (3) and the shielding piece (5) are composed of surface wear-resistant material and decorative material in order from top to bottom; the lower end of the first extension piece (3) corresponding to the decorative material and the second reinforcing rib (13) are both wood-plastic composite substrate; the uppermost end of the second extension piece (4), the connecting ring (8) and the first reinforcing rib (9) are all wood-plastic composite substrate; the lower end of the second extension piece (4) corresponding to the wood-plastic composite substrate is provided with stabilizing material; and the lower end of the second extension piece (4) corresponding to the stabilizing material is provided with moisture-proof material.

8. The hook-type hollow wood plastic floor according to claim 7, characterized in that: The limiting strip (18), the first connecting block (6) and the second connecting block (7) are all made of wood-plastic composite substrates.

9. The hook-type hollow wood plastic floor according to claim 8, characterized in that: The surface wear-resistant material is polyethylene, the decorative material is digitally printed wood grain paper wrapped with UV light-curing resin, the wood-plastic composite base material is formed by melting wood powder and polypropylene, the stabilizing material is a mixture of cork particles and polyurethane adhesive, and the moisture-proof material is PE film.

10. An assembly method of the hook-type hollow wood-plastic flooring according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Place the material corresponding to the floor laying position into the first groove (10) inside the second extension piece (4), and apply glue on the surface of the connecting surface (11) and the second groove (12); Step 2: Press the first extension piece (3) connected to the second plate body (2) toward the upper end of the second extension piece (4) on the side of the first plate body (1), so that the material inside the first groove (10) is embedded in the fourth groove (20), the glue in the second groove (12) contacts the connecting ring (8), and the glue in the connecting surface (11) contacts the first extension piece (3), and the glue solidifies to form the floor (19); Step 3: Take out the second connecting block (7) from the first receiving cavity (14), turn over the second connecting block (7) and insert it into the first receiving cavity (14) again, take out the first connecting block (6) from the second receiving cavity (15), turn over the first connecting block (6) and insert it into the second receiving cavity (15) again, and the turned first connecting block (6) and second connecting block (7) will directly expose the third connecting block (16) connected to each other by the slot; Step 4: Apply glue to the slot connection positions of the two third connecting blocks (16), and connect the first connecting block (6) corresponding to the third connecting block (16) and the second connecting block (7) corresponding to the third connecting block (16) through the slot connection. The slot connection is combined with the solidification of the glue to complete the connection of the two floor panels (19).

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