PVC (polyvinyl chloride) decorative sheet with moisture-proof structure

Abstract

The utility model relates to the technical field of pvc decorative sheets, in particular to a pvc decorative sheet with a moisture-proof structure, which comprises a decorative sheet body and a lap joint strip, a plurality of concave holes distributed at equal intervals are arranged on the rear side of the decorative sheet body, second positioning slots are arranged at the left end and the right end of the rear side of the decorative sheet body, and the lap joint strip is arranged in the concave holes. Second inserting blocks matched with the second positioning inserting grooves are fixedly connected to the left end and the right end of the front face of the lap joint strip, and a plurality of internal thread counter bores distributed at equal intervals are formed in the front face of the lap joint strip. Through cooperation of structures, the pvc decorative sheet has the advantage of being good in moisture-proof effect, and overcomes the defects that an existing pvc decorative sheet used in the building field is sensitive to the humid environment, in the humid environment, the pvc decorative sheet is prone to being affected with damp to deform and age, and the pvc decorative sheet is not prone to being damaged. And even cracks, fractures and the like occur, so that the service life is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC decorative sheets, in particular to a PVC decorative sheet with a moisture-proof structure. Background Technique

[0002] PVC, namely polyvinyl chloride, is a high molecular material obtained by addition polymerization of vinyl chloride. It is the third most widely produced synthetic plastic polymer after polyethylene and polypropylene, and has good weather resistance and corrosion resistance. Therefore, it is widely used in the fields of construction, electronics, medical treatment, etc.

[0003] At present, there are some defects in the existing PVC decorative sheets used in the construction field. The most prominent one is their sensitivity to humid environments. In humid environments, PVC decorative sheets are prone to moisture absorption, deformation, aging, and even cracks and fractures, reducing their service life. For this reason, we propose a PVC decorative sheet with a moisture-proof structure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a PVC decorative sheet with a moisture-proof structure, which has the advantage of good moisture-proof effect, and solves the problems that there are some defects in the existing PVC decorative sheets used in the construction field. The most prominent one is their sensitivity to humid environments. In humid environments, PVC decorative sheets are prone to moisture absorption, deformation, aging, and even cracks and fractures, reducing their service life.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A PVC decorative sheet with a moisture-proof structure, including a decorative sheet body and a lapping strip. A plurality of equally spaced concave holes are provided on the rear side of the decorative sheet body. Second positioning slots are provided at both the left and right ends on the rear side of the decorative sheet body. Second insertion blocks adapted to the second positioning slots are fixedly connected to both the left and right ends on the front side of the lapping strip. A plurality of equally spaced internal thread counterbores are provided on the front side of the lapping strip. A metal mesh cylinder is arranged inside the concave hole. A granular desiccant is arranged inside the metal mesh cylinder. An external thread connecting head is arranged on the rear side of the metal mesh cylinder. A toughening layer is bonded to the outside of the decorative sheet body, the lapping strip, and the first positioning block. A waterproof layer is coated on the outside of the toughening layer.

[0006] Preferably, the number of the internal thread counterbores is the same as that of the concave holes, and the positions of the internal thread counterbores and the concave holes correspond one by one.

[0007] Preferably, the external thread connecting head is adapted to the internal thread counterbore, and the external thread connecting head is threadedly connected to the inside of the internal thread counterbore.

[0008] Preferably, the material of the toughening layer is carbon fiber, and the thickness of the toughening layer is between three microns and fifty microns.

[0009] Preferably, the waterproof layer is made of a nano-silicon waterproof glue layer, and the thickness of the waterproof layer is between twenty microns and one hundred and eighty microns.

[0010] Preferably, a lapping groove is formed at the lower end of the front surface of the decorative sheet body, a sealing gasket is bonded to the top inside the lapping groove, and a lapping strip adapted to the lapping groove is arranged at the rear side of the decorative sheet body.

[0011] Preferably, a first positioning plug is arranged in the middle of the left side of the decorative sheet body, and a first positioning slot adapted to the first positioning plug is arranged in the middle of the right side of the decorative sheet body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the arrangement of the metal mesh cylinder, the present utility model can fill granular desiccant into it through the external thread connecting head. Then, by driving the external thread connecting head to rotate through the metal mesh cylinder, the external thread connecting head is threadedly connected with the internal thread counterbore. Then, by driving the metal mesh cylinder filled with granular desiccant through the lapping strip into the corresponding concave hole, when the lapping strip is about to contact the rear side of the decorative sheet body, the second insertion block can contact the second positioning slot. Under continuous pressure, after the second insertion block deforms to a certain extent, it can be clamped into the second positioning slot, realizing the ability to position the lapping strip at the rear side of the decorative sheet body and limit the metal mesh cylinder in the concave hole, thereby being able to play the role of moisture-proof inside the decorative sheet body.

[0014] 2. Through the arrangement of multiple metal mesh cylinders, the present utility model can enhance the self-strength and impact resistance of the decorative sheet body. Moreover, the cooperation between the external thread connecting head and the internal thread counterbore facilitates the replacement of the granular desiccant in the metal mesh cylinder. Through the arrangement of the toughening layer, the toughness of the surface of the decorative sheet body is improved. Through the arrangement of the waterproof layer, it can effectively prevent the influence of external humid gas on the decorative sheet body, making the PVC decorative sheet achieve the purpose of good moisture-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model from the first perspective;

[0016] Figure 2 is a schematic structural diagram of the present utility model from the second perspective;

[0017] Figure 3 is a partial schematic structural diagram of the present utility model from the third perspective;

[0018] Figure 4 is a schematic structural diagram of the metal mesh cylinder of the present utility model;

[0019] Figure 5Schematic diagram of the second plug-in block structure of the present utility model;

[0020] Figure 6 Schematic diagram of the waterproof layer structure of the present utility model.

[0021] In the figure: 1, decorative sheet body; 2, lapping groove; 3, lapping strip; 4, first positioning slot; 5, first positioning plug; 6, sealing gasket; 7, second positioning slot; 8, concave hole; 9, metal mesh cylinder; 10, second plug-in block; 11, granular desiccant; 12, internal thread counterbore; 13, external thread connector; 14, toughened layer; 15, waterproof layer. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] It should be noted that the decorative sheet body 1, the lapping groove 2, the lapping strip 3, the first positioning slot 4, the first positioning plug 5, the sealing gasket 6, the second positioning slot 7, the concave hole 8, the metal mesh cylinder 9, the second plugging block 10, the granular desiccant 11, the internal thread counterbore 12, the external thread connector 13, the toughening layer 14 and the waterproof layer 15 components of this application are all common standard components or components known to those skilled in the art. Their structures and principles can all be learned by those skilled in the art through technical manuals or obtained through conventional experimental methods. And the connection to the power circuit adopts the conventional connection method in the prior art, which will not be elaborated here.

[0026] Embodiment 1

[0027] Please refer to Figures 1 - 6 As shown, the present utility model provides a technical solution: a PVC decorative sheet with a moisture-proof structure, including a decorative sheet body 1 and a lapping strip 3. A plurality of equally spaced concave holes 8 are provided at the rear side of the decorative sheet body 1. Second positioning slots 7 are provided at both the left and right ends of the rear side of the decorative sheet body 1. Second plugging blocks 10 adapted to the second positioning slots 7 are fixedly connected to both the left and right ends of the front side of the lapping strip 3. A plurality of equally spaced internal thread counterbores 12 are provided on the front side of the lapping strip 3. The number of the internal thread counterbores 12 is the same as that of the concave holes 8, and the positions of the internal thread counterbores 12 and the concave holes 8 correspond one by one. A metal mesh cylinder 9 is arranged inside the concave hole 8. A granular desiccant 11 is arranged inside the metal mesh cylinder 9. An external thread connector 13 is arranged at the rear side of the metal mesh cylinder 9. The external thread connector 13 is adapted to the internal thread counterbore 12, and the external thread connector 13 is threadedly connected to the inside of the internal thread counterbore 12. The toughening layer 14 is adhered to the outside of the decorative sheet body 1, the lapping strip 3 and the first positioning plug 5. The material of the toughening layer 14 is carbon fiber, and the thickness of the toughening layer 14 is between three microns and fifty microns. The waterproof layer 15 is coated on the outside of the toughening layer 14. The material of the waterproof layer 15 is a nano-silicon waterproof glue layer, and the thickness of the waterproof layer 15 is between twenty microns and one hundred and eighty microns.

[0028] Technical solution: Through the setting of the metal mesh cylinder 9, granular desiccant 11 can be filled into its interior through the external thread connecting head 13. Then, by driving the external thread connecting head 13 to rotate through the metal mesh cylinder 9, the external thread connecting head 13 is threadedly connected to the internal thread counterbore 12. Next, the metal mesh cylinder 9 filled with granular desiccant 11 is driven by the overlapping strip 3 into the corresponding concave hole 8. When the overlapping strip 3 is about to contact the rear side of the decorative sheet body 1, the second insertion block 10 can contact the second positioning slot 7. Under continuous pressure, after the second insertion block 10 deforms to a certain extent, it can be snapped into the second positioning slot 7, realizing the ability to position the overlapping strip 3 at the rear side of the decorative sheet body 1 and limit the metal mesh cylinder 9 in the concave hole 8. Furthermore, it can achieve the ability to prevent moisture inside the decorative sheet body 1. And the setting of multiple metal mesh cylinders 9 can enhance the self-strength and impact resistance of the decorative sheet body 1. Also, the cooperation between the external thread connecting head 13 and the internal thread counterbore 12 facilitates the replacement of the granular desiccant 11 inside the metal mesh cylinder 9. Through the setting of the toughening layer 14, the toughness of the surface of the decorative sheet body 1 is improved. Through the setting of the waterproof layer 15, it can effectively prevent the influence of external humid gas on the decorative sheet body 1, making the PVC decorative sheet achieve a good moisture-proof effect.

[0029] Embodiment 2

[0030] On the basis of Embodiment 1, as shown in the present utility model Figures 1 - 4 The lower end of the front surface of the decorative sheet body 1 is provided with an overlapping groove 2. A sealing gasket 6 is adhesively bonded to the top inside the overlapping groove 2. An overlapping strip 3 adapted to the overlapping groove 2 is provided at the rear side of the decorative sheet body 1. A first positioning insertion block 5 is provided at the middle end of the left side of the decorative sheet body 1. A first positioning slot 4 adapted to the first positioning insertion block 5 is provided at the middle end of the right side of the decorative sheet body 1.

[0031] Technical solution: Through the setting of the overlapping groove 2, the sealing gasket 6 and the overlapping strip 3, the overlapping work of the front and rear decorative sheet bodies 1 is facilitated, and the sealing performance after overlapping is ensured. Through the setting of the first positioning insertion block 5 and the first positioning slot 4, after the first positioning insertion block 5 deforms and enters the first positioning slot 4, the docking and positioning work of the left and right decorative sheet bodies 1 is facilitated, which is convenient for people's assembly work.

[0032] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0033] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present utility model or those features that are not relevant to the implementation of the present utility model).

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A PVC decorative sheet with a moisture-proof structure, comprising a decorative sheet body (1) and a lap strip (3), characterized in that: The rear side of the decorative sheet (1) is provided with a plurality of equally spaced recessed holes (8); the left and right ends of the rear side of the decorative sheet (1) are provided with second positioning slots (7); the left and right ends of the front side of the lap strip (3) are fixedly connected with second plug-in blocks (10) adapted to the second positioning slots (7); the front side of the lap strip (3) is provided with a plurality of equally spaced internal threaded countersunk holes (12); the inner side of the recessed hole (8) is provided with a metal mesh tube (9); the inner side of the metal mesh tube (9) is provided with a granular desiccant (11); the rear side of the metal mesh tube (9) is provided with an external threaded connector (13); the outer sides of the decorative sheet (1), the lap strip (3) and the first positioning plug-in block (5) are bonded with a toughening layer (14); the outer side of the toughening layer (14) is coated with a waterproof layer (15).

2. The PVC decorative sheet with moisture-proof structure according to claim 1, characterized in that: The number of the internal thread countersunk holes (12) and the number of the recessed holes (8) are the same, and the positions of the internal thread countersunk holes (12) and the recessed holes (8) correspond one to one.

3. The PVC decorative sheet with moisture-proof structure according to claim 1, characterized in that: The external thread connector (13) is adapted to the internal thread counterbore (12), and the external thread connector (13) is threadedly connected to the inner side of the internal thread counterbore (12).

4. The PVC decorative sheet with moisture-proof structure according to claim 1, characterized in that: The material of the toughening layer (14) is carbon fiber, and the thickness of the toughening layer (14) is between three micrometers and fifty micrometers.

5. The PVC decorative sheet with moisture-proof structure according to claim 1, characterized in that: The material of the waterproof layer (15) is a nano-silicon waterproof adhesive layer, and the thickness of the waterproof layer (15) is between 20 micrometers and 180 micrometers.

6. The PVC decorative sheet with moisture-proof structure according to claim 1, characterized in that: A lap groove (2) is provided at the lower end of the front side of the decorative sheet body (1), a sealing gasket (6) is bonded to the top of the inner side of the lap groove (2), and a lap strip (3) matching the lap groove (2) is provided at the rear side of the decorative sheet body (1).

7. The PVC decorative sheet with moisture-proof structure according to claim 1, characterized in that: A first positioning block (5) is arranged at the middle end of the left side of the decorative sheet body (1), and a first positioning slot (4) adapted to the first positioning block (5) is arranged at the middle end of the right side of the decorative sheet body (1).

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