Single sided coated coextruded floor

Abstract

The utility model belongs to the technical field of co-extrusion floor, specifically relates to a single face cladding co-extrusion floor, including first floor body and with the second floor body of chiral symmetry of first floor body, first floor body has two short sides and two long sides, is provided with short side lock tongue and short side lock groove respectively on two short sides, is provided with long side lock tongue and long side lock groove respectively on two long sides, short side lock tongue and long side lock tongue end portion are connected with each other and form and have male corner part, short side lock tongue end portion has short side corner part from male corner part, long side lock tongue end portion has long side corner part from male corner part. The utility model has carried out improvement to the floor, is applied to the process construction of herringbone splicing, in order to obtain the floor of better economy, low construction difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of co-extruded flooring technology, specifically relating to a single-sided co-extruded flooring. Background Technology

[0002] Co-extrusion technology, as an advanced polymer processing method, has been introduced into the flooring manufacturing field. Its core advantage lies in the one-time extrusion molding of two or more materials with complementary properties in a molten state through the same mold to form a profile with a layered structure.

[0003] Besides improved environmental friendliness and production efficiency through optimized processes, the aesthetic requirements for flooring are increasingly stringent. Different splicing methods can create entirely different decorative effects. Herringbone splicing is a special type of flooring splicing. Existing herringbone flooring, such as the 6G interlocking geothermal herringbone flooring with authorization announcement number CN214785641U, features a locking head on each adjacent side of the flooring body, and corresponding locking slots on the other two sides. The locking head can be inserted into the locking slot. The lower side of the locking slot is longer than the upper side, and a groove is formed on the lower side of the locking slot. A protrusion is formed on the bottom surface of the locking head. Three female grooves are formed on the side of the groove closest to the flooring body; these female grooves are concave. Three male grooves are formed on the bottom surface of the locking head; these male grooves are formed on the side of the protrusion furthest from the flooring body, and they are protruding protrusions that can engage with the female grooves.

[0004] However, the device still has at least the following problems: First, when two floorboards are spliced ​​together vertically, the floorboard to be spliced ​​later needs to be flipped to complete the splicing, which requires both sides of the floorboard to have a wear-resistant / decorative layer, which increases the cost of the production stage; Second, the herringbone splicing requires high construction skills and manual positioning, which increases the cost of the construction stage; Third, the protruding lock head end is easily damaged, the storage and transportation costs of the floorboards are high, and the recycling rate is low, which increases the cost of intermediate links. Utility Model Content

[0005] To address the aforementioned problems, this application improves the flooring design and applies it to herringbone splicing construction, aiming to obtain flooring that is more economical and easier to install. The purpose of this invention is to provide a single-sided co-extruded flooring.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A single-sided co-extruded flooring includes a first flooring body and a second flooring body that is chirally symmetrical to the first flooring body;

[0008] The first floor body has two short sides and two long sides, and the two short sides are respectively provided with a short side locking tongue and a short side locking groove, and the two long sides are respectively provided with a long side locking tongue and a long side locking groove.

[0009] The ends of the short side latch and the long side latch are connected to each other and form a convex corner;

[0010] The short side latch has a short side corner at the end different from the external corner, and the minimum distance D1 between the short side corner and the long side of the first floor body is greater than the distance D2 between the bottom surface of the long side latch groove and the long side of the first floor body, which is greater than the width W1 of the long side latch protruding from the first floor body.

[0011] The end of the long side latch, which is different from the external corner, has a long side corner, and the minimum distance D3 between the long side corner and the short side of the first floor body is greater than or equal to the distance D4 between the bottom surface of the short side latch groove and the short side of the first floor body, which is greater than the width W2 of the short side latch protruding from the first floor body.

[0012] As a further preferred embodiment of the present invention, the first floor body is connected to a connecting assembly; the connecting assembly includes a corner member for covering the external corner portion and a short corner member for covering the short corner portion; both the external corner member and the short corner member include a first connecting plate and a second connecting plate perpendicularly connected to the end of the first connecting plate;

[0013] The thickness of both the first connecting plate and the second connecting plate is W3, and W3+W1≤D2, W3+D2≤D1.

[0014] As a further preferred embodiment of this utility model, the external corner portion and the short side corner portion are respectively provided with insertion grooves, and the external corner component and the short side corner component are respectively provided with insertion blocks that are connected to the insertion grooves.

[0015] As a further preferred embodiment of this utility model, the external corner component further includes an external corner positioning plate disposed at the connection between the first connecting plate and the second connecting plate and parallel to the short side of the first floor body; the short corner component further includes a short corner positioning plate disposed at the connection between the first connecting plate and the second connecting plate and parallel to the long side of the first floor body; a positioning groove recessed into the bottom surface of the long side locking groove is provided in the long side locking groove; the recess depth of the positioning groove is greater than or equal to the larger of the lengths of the external corner positioning plate and the short corner positioning plate, and the width of the positioning groove is greater than or equal to the sum of the widths of the external corner positioning plate and the short corner positioning plate.

[0016] As a further preferred embodiment of this utility model, a first magnet is provided on the external corner positioning plate, and a second magnet that attracts the first magnet is provided on the short corner positioning plate.

[0017] As a further preferred embodiment of the present invention, the connecting assembly further includes a long corner member for covering the long corner portion, the long corner member being chirally symmetrical to the external corner member or the short corner member.

[0018] As a further preferred embodiment of the present invention, the long corner component further includes a long corner positioning plate parallel to the short side of the first floor body.

[0019] As a further preferred embodiment of the present invention, the first floor body includes at least a base layer and a decorative layer disposed on the surface of the base layer; the short side latch, short side lock groove, long side latch, and long side lock groove are all disposed on the base layer.

[0020] As a further preferred embodiment of this utility model, the short side latch and / or the long side latch are provided with protrusions; the short side lock groove and / or the long side lock groove are provided with grooves that match the protrusions.

[0021] The beneficial effects of this utility model are:

[0022] This invention uses two chiral symmetrical flooring bodies as the basic structure for herringbone splicing. Both types of flooring can be directly produced using a single-sided covering process. Compared with the existing technology, which has a herringbone flooring structure with decorative layers on both sides, this invention can significantly reduce the production cost of co-extruded flooring and help improve production efficiency.

[0023] This invention employs a combination of flooring and connecting components, integrating them throughout the entire process of flooring transportation, storage, and assembly. During transportation and storage, the connecting components provide protection, preventing wear and tear on all corners of the flooring. During assembly, the connecting components provide positioning and connection, ensuring more precise placement and a tighter bond between floorboards, thus improving installation efficiency and reducing costs. Furthermore, both the connecting components and the flooring itself are recyclable, further reducing overall usage costs. Attached Figure Description

[0024] Appendix Figure 1 This is a schematic diagram of the structure of the floor body of this utility model.

[0025] Appendix Figure 2 This is a schematic diagram of the structure of the floor body of this utility model from a side view.

[0026] Appendix Figure 3 This is a schematic diagram showing the connection between the floor body and the connecting components of this utility model.

[0027] Appendix Figure 4 This is a partial three-dimensional structural diagram of the floor body of this utility model at the external corner.

[0028] Appendix Figure 5 This is a schematic diagram of the composition of the connecting component of this utility model.

[0029] Appendix Figure 6 This is a schematic diagram of the assembly of this utility model.

[0030] Figure description: First floor body 1, base layer 11, decorative layer 12, protrusion 13, groove 14;

[0031] Short side locking tongue 110, short side locking groove 210, long side locking tongue 120, long side locking groove 220, positioning groove 221;

[0032] External corner 310, short side corner 320, long side corner 330;

[0033] External corner component 410, short corner component 420, insertion groove 430, insertion block 440, long corner component 450;

[0034] External corner positioning plate 411, first magnet 412, short corner positioning plate 421, second magnet 422;

[0035] Long corner positioning plate 451. Detailed Implementation

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] As attached Figure 1As shown, this embodiment provides a single-sided co-extruded flooring, including a first flooring body 1 and a second flooring body that is chirally symmetrical to the first flooring body 1. (See attached diagram.) Figure 6 As shown, during construction, the first floor body 1 and the second floor body are grouped together and connected at perpendicular ends. The groups are spliced ​​together in the same way to form the herringbone floor structure commonly used in this field.

[0040] In this embodiment, the first floor body 1 and the second floor body are identical in all parameters except for chiral symmetry. Therefore, the following description will use the first floor body 1 as an example.

[0041] In this embodiment, as shown in the appendix Figure 2 As shown, the first floor body 1 is a single-sided co-extruded floor. Internally, the first floor body 1 includes a base layer 11 and a decorative layer 12 disposed on the surface of the base layer 11. Co-extruded flooring refers to flooring prepared using co-extrusion technology. Simply put, it involves extruding two or more materials in a molten state through the same mold in a single process to form a profile with a layered structure. In the prior art, herringbone flooring requires decorative layers on both sides, meaning at least three layers are needed, forming a sandwich structure of two decorative layers sandwiching a base layer. It is understood that the materials for the base layer and decorative layers can be chosen conventionally by those skilled in the art, and therefore will not be elaborated further.

[0042] Compared to existing flooring technologies that use decorative layers on both sides, this solution adds an extra chiral symmetrical flooring body. However, it has the advantage of significantly reducing the production cost of co-extruded flooring (such as the material cost of two decorative layers, the mold customization cost of co-extruding two decorative layers, and the loss cost caused by the reduced yield due to the co-extrusion process of two decorative layers), and also helps to improve production efficiency.

[0043] The flooring provided in this embodiment addresses the difficulty of splicing during construction from two aspects: firstly, it focuses on reducing positioning difficulty and saving adjustment time; secondly, it focuses on improving connection tightness to avoid increasing construction errors and further saving adjustment time.

[0044] In this embodiment, the first floor body 1 has two short sides and two long sides. A short side locking tongue 110 and a short side locking groove 210 are respectively provided on the two short sides, and a long side locking tongue 120 and a long side locking groove 220 are respectively provided on the two long sides. The short side locking tongue 110, short side locking groove 210, long side locking tongue 120, and long side locking groove 220 are all located at the base layer 11. When the first floor body 1 is connected to the second floor body, the short side locking tongue 110 engages with the short side locking groove 210, and the long side locking tongue 120 engages with the long side locking groove 220.

[0045] Unlike the prior art, the ends of the short side latch 110 and the long side latch 120 are connected to each other and form a convex corner portion 310. The end of the short side latch 110 that is different from the convex corner portion 310 has a short side corner portion 320, and the end of the long side latch 120 that is different from the convex corner portion 310 has a long side corner portion 330.

[0046] The minimum distance D1 between the short corner portion 320 and the long side of the first floor body 1 is greater than the distance D2 between the bottom surface of the long side locking groove 220 and the long side of the first floor body 1. The width W1 of the long side locking tongue 120 protruding from the first floor body 1 is greater than the width W1 of the long side locking tongue 120 protruding from the first floor body 1.

[0047] The minimum distance D3 between the long side corner 330 and the short side of the first floor body 1 is greater than or equal to the distance D4 between the bottom surface of the short side locking groove 210 and the short side of the first floor body 1, which is greater than the width W2 of the short side locking tongue 110 protruding from the first floor body 1.

[0048] Preferably, W1=W2, D3=D4.

[0049] The design of the aforementioned flooring structure aims to enable the flooring itself and connecting components to work together throughout the entire process of flooring transportation, storage, and assembly. During transportation and storage, the connecting components provide protection, preventing wear and tear on all corners. During assembly, the connecting components provide positioning and connection, ensuring more precise placement and a tighter bond between floorboards, thus improving installation efficiency and reducing costs. Furthermore, both the connecting components and the flooring itself are recyclable, further reducing usage costs.

[0050] In this embodiment, as shown in the appendix Figure 3 ~Appendix Figure 5 As shown, the first floor body 1 is connected to the connecting assembly; the connecting assembly includes a corner member 410 for covering the external corner portion 310 and a short corner member 420 for covering the short corner portion 320; both the external corner member 410 and the short corner member 420 include a first connecting plate and a second connecting plate that is perpendicularly connected to the end of the first connecting plate.

[0051] The thickness of both the first connecting plate and the second connecting plate is W3, and W3+W1≤D2, W3+D2≤D1.

[0052] Preferably, W3+W1=D2, W3+D2=D1. This allows for a splicing configuration where, after the connecting components are installed on the floorboard body, the surface of the short corner member 420 is flush with the bottom surface of the long locking groove 220. Two chiral, symmetrical floorboard bodies with the connecting components installed are then spliced ​​together. At this point, the external corner member 410 on one floorboard body abuts against the short corner member 420 on the other. Since the surface of the short corner member 420 is flush with the bottom surface of the long locking groove 220, only the thickness of the side edge of the external corner member (i.e., the first connecting plate or the second connecting plate) creates a gap between the locking tongue and the locking groove, satisfying the condition W3+W1=D2. Because the external corner member 410 and the short corner member 420 have exposed structures, only the two corner members need to be aligned to accurately determine the corner positions to be spliced, reducing the positioning difficulty during splicing.

[0053] In this embodiment, to enhance the connection strength between the external corner member 410 and the short corner member 420 and the external corner portion 320, respectively, the external corner portion 310 and the short corner portion 320 are each provided with a plug-in groove 430, and the external corner member 410 and the short corner member 420 are each provided with a plug-in block 440 that connects to the plug-in groove 430. This arrangement avoids the problem of corner members shifting after installation, and the installation method is simple and quick, facilitating construction. It is understood that this embodiment only proposes a plug-in form. Further optimization of the corner members or corner structure based on this basic form are conventional choices that can be made by those skilled in the art, and therefore will not be described in detail.

[0054] In this embodiment, the external corner member 410 further includes an external corner positioning plate 411 disposed at the connection between the first connecting plate and the second connecting plate and parallel to the short side of the first floor body 1; the short corner member 420 further includes a short corner positioning plate 421 disposed at the connection between the first connecting plate and the second connecting plate and parallel to the long side of the first floor body 1; a positioning groove 221 recessed below the bottom surface of the long side locking groove 220 is provided in the long side locking groove 220; the recess depth of the positioning groove 221 is greater than or equal to the larger of the lengths of the external corner positioning plate 411 and the short corner positioning plate 421, and the width of the positioning groove 221 is greater than or equal to the sum of the widths of the external corner positioning plate 411 and the short corner positioning plate 421.

[0055] The positioning grooves 221 are designed to further enhance positioning accuracy during splicing and improve the tightness of the connection. Each positioning groove 221 can accommodate both the external corner positioning plate 411 and the short corner positioning plate 421 simultaneously. Preferably, the recess depth of the positioning groove 221 equals the length of the external corner positioning plate 411 equals the length of the short corner positioning plate 421, and the width of the positioning groove 221 equals the sum of the widths of the external corner positioning plate 411 and the short corner positioning plate 421. Improving dimensional accuracy further enhances the tightness of the connection.

[0056] As a further preferred embodiment, the external corner positioning plate 411 is provided with a first magnet 412, and the short corner positioning plate 421 is provided with a second magnet 422 that attracts the first magnet 412. This arrangement can reduce the possibility of the corner component or the floor body shifting again after positioning, and the collision sound caused by the attraction between the two magnets can serve as a reminder.

[0057] As a further preferred embodiment, the connecting assembly further includes a long-corner member 450 for covering the long-corner portion 330, the long-corner member 450 being chirally symmetrical to the external corner member 410 or the short-corner member 420. The added long-corner member 450 is mainly used to reinforce and protect the long-corner portion 330, preventing wear. Another function is that, when W1=W2, the two ends of the long-side locking tongue are respectively inserted into the long-side locking groove and the short-side locking groove of the two floor bodies. The external corner member 410 and the short-corner member 420 are connected in the long-side locking groove, creating a gap W3. The gap can be filled in the short-side locking groove by the thickness W3 created by the connected long-corner member 450, ensuring the consistency of the position of the two ends of the long-side locking tongue.

[0058] Furthermore, the long corner member 450 also includes a long corner positioning plate 451 parallel to the short side of the first floor body 1. After the long corner member 450 enters the short side locking groove, the long corner positioning plate 451 can also extend into the long side locking groove that communicates with the short side locking groove, further improving the positioning accuracy of the floor body with the long corner member 450 installed.

[0059] As a further preferred embodiment, the short side latch 110 and / or the long side latch 120 are provided with protrusions 13; the short side lock groove 210 and / or the long side lock groove 220 are provided with grooves 14 that match the protrusions 13. This arrangement helps to strengthen the connection between the latch and the lock groove and improve the connection strength.

[0060] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A single-sided co-extruded flooring, characterized in that: It includes a first floor body (1) and a second floor body that is chirally symmetrical to the first floor body (1); The first floor body (1) has two short sides and two long sides, and the two short sides are respectively provided with a short side locking tongue (110) and a short side locking groove (210), and the two long sides are respectively provided with a long side locking tongue (120) and a long side locking groove (220). The ends of the short side latch (110) and the long side latch (120) are connected to each other and form a convex corner (310). The short side latch (110) has a short side corner (320) at the end of the opposite corner (310), and the minimum distance D1 between the short side corner (320) and the long side of the first floor body (1) is greater than the distance D2 between the bottom surface of the long side lock groove (220) and the long side of the first floor body (1) and greater than the width W1 of the long side latch (120) protruding from the first floor body (1); The long side latch (120) has a long side corner (330) at the end of the opposite corner (310), and the minimum distance D3 between the long side corner (330) and the short side of the first floor body (1) is greater than the distance D4 between the bottom surface of the short side lock groove (210) and the short side of the first floor body (1) and is greater than the width W2 of the short side latch (110) protruding from the first floor body (1).

2. The single-sided co-extruded flooring according to claim 1, characterized in that: The first floor body (1) is connected to the connecting assembly; the connecting assembly includes a corner member (410) for covering the external corner (310) and a short corner member (420) for covering the short corner (320); both the external corner member (410) and the short corner member (420) include a first connecting plate and a second connecting plate that is perpendicularly connected to the end of the first connecting plate; The thickness of both the first connecting plate and the second connecting plate is W3, and W3+W1≤D2, W3+D2≤D1.

3. The single-sided co-extruded flooring according to claim 2, characterized in that: The external corner portion (310) and the short side corner portion (320) are respectively provided with insertion grooves (430), and the external corner component (410) and the short side corner component (420) are respectively provided with insertion blocks (440) that are connected to the insertion grooves (430).

4. The single-sided coated co-extruded flooring according to claim 2, characterized in that: The external corner component (410) further includes an external corner positioning plate (411) disposed at the connection between the first connecting plate and the second connecting plate and parallel to the short side of the first floor body (1); the short corner component (420) further includes a short corner positioning plate (421) disposed at the connection between the first connecting plate and the second connecting plate and parallel to the long side of the first floor body (1); the long side locking groove (220) is provided with a positioning groove (221) recessed at the bottom surface of the long side locking groove (220); the recess depth of the positioning groove (221) is greater than or equal to the larger of the lengths of the external corner positioning plate (411) and the short corner positioning plate (421), and the width of the positioning groove (221) is greater than or equal to the sum of the widths of the external corner positioning plate (411) and the short corner positioning plate (421).

5. The single-sided coated co-extruded flooring according to claim 4, characterized in that: The external corner positioning plate (411) is provided with a first magnet (412), and the short corner positioning plate (421) is provided with a second magnet (422) that attracts the first magnet (412).

6. The single-sided co-extruded flooring according to claim 2, characterized in that: The connecting assembly further includes a long corner member (450) for covering the long corner portion (330), the long corner member (450) being chirally symmetrical with the external corner member (410) or the short corner member (420).

7. A single-sided co-extruded flooring according to claim 6, characterized in that: The long corner member (450) also includes a long corner positioning plate (451) that is parallel to the short side of the first floor body (1).

8. The single-sided co-extruded flooring according to claim 1, characterized in that: The first floor body (1) includes at least a base layer (11) and a decorative layer (12) disposed on the surface of the base layer (11); the short side latch (110), the short side lock groove (210), the long side latch (120), and the long side lock groove (220) are all disposed on the base layer (11).

9. A single-sided co-extruded flooring according to claim 1, characterized in that: The short side latch (110) and / or the long side latch (120) are provided with protrusions (13); the short side lock groove (210) and / or the long side lock groove (220) are provided with grooves (14) that match the protrusions (13).

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