Double-layer film-coated moisture-proof carton

Abstract

The utility model relates to a double-layer film-covered moistureproof carton which comprises a paperboard body, the paperboard body comprises an outer isolation moistureproof layer, a paperboard layer and an inner isolation layer from top to bottom, the outer isolation moistureproof layer is a PE film, the surface of the PE film is provided with pits, moistureproof particles are arranged in the pits, and the paperboard body comprises a base plate, a first side plate, a second side plate, a third side plate and a fourth side plate. The first side plate, the second side plate, the third side plate and the fourth side plate are clockwise connected with the four edges of the base plate respectively, extending notches are formed in the surfaces of the second side plate and the fourth side plate, extending strips are formed on the two sides of the first side plate and the two sides of the third side plate, and the extending strips extend into the extending notches. The extension strips are connected with the inner walls of the second side plate and the fourth side plate or two adjacent extension strips are connected, the outer isolation damp-proof layer is formed by pressing and compounding a PE film and damp-proof particles, so that one surface of the PE film is provided with the damp-proof particles, and after the outer isolation damp-proof layer is compounded to the paperboard layer, the outer surface of the paperboard layer has a damp-proof function.

Description

Technical Field

[0001] The utility model belongs to the technical field of cartons, and in particular relates to a double-layer film-coated moisture-proof carton. Background Art

[0002] Currently in the field of packaging, it is often necessary to provide consumers with packages that include multiple main product containers. Such combination packaging (multi-pack) is expected to be used for transportation and distribution, as well as for displaying promotional information. Corrugated boxes are generally used to ensure this. Depending on the product, the performance that the corrugated box needs to have is also different. For example, for some products that must be moisture-proof, the corrugated box used for packaging needs to have moisture-proof and isolation functions. The existing moisture-proof method is only to throw moisture-proof bags into the corrugated box for moisture-proofing, but this is not enough. If the outer wall of the corrugated box can have a moisture-proof function, then the moisture-proof effect will be greatly improved. In view of this, the present solution was created. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a double-layer coated moisture-proof paper box, which is moisture-proof and easy to assemble.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a double-layer coated moisture-proof carton, including a cardboard body, the cardboard body is composed of an outer insulating moisture-proof layer, a cardboard layer and an inner insulating layer from top to bottom, the outer insulating moisture-proof layer is a PE film, the surface of the PE film has pits, and moisture-proof particles are arranged in the pits, the cardboard body includes a base plate, a first side plate, a second side plate, a third side plate and a fourth side plate, the first side plate, the second side plate, the third side plate and the fourth side plate are respectively connected to the four sides of the base plate clockwise, the second side plate and the fourth side plate have extension notches on their surfaces, extension strips are formed on both sides of the first side plate and the third side plate, the extension strips extend into the extension notches, the extension strips are connected to the inner walls of the second side plate and the fourth side plate or are connected to two adjacent extension strips.

[0005] Furthermore, the extension strip includes a edging portion and a connecting portion, the length of the edging portion is the same as the width of the second side panel and the fourth side panel, the connecting portion is connected to the outside of the edging portion, and the length of the connecting portion is less than or equal to the length of the extending into the notch.

[0006] Furthermore, a rubber strip is adhered to the inner side of the connecting portion, the connecting portion extends into the extending notch and is bent, and the connecting portion is adhered to the second side panel or the fourth side panel through the rubber strip.

[0007] Furthermore, a first through hole is provided on the connecting portion, and second through holes are provided on the surfaces of the second side plate and the fourth side plate. The connecting portion is connected to the second side plate or the fourth side plate by the buckling end of the connecting buckle passing through the first through hole and the second through hole.

[0008] Furthermore, the width of the extension strip is greater than half the length of the second side panel and the fourth side panel, a third through hole is provided on the connecting portion, and two adjacent connecting portions are connected by the buckling end of the connecting buckle passing through the first through hole and the second through hole.

[0009] Furthermore, the connecting buckle includes a male fastener and a female fastener, the diameters of the male fastener and the female fastener are larger than the diameters of the first through hole, the second through hole and the third through hole, a left claw and a right claw are formed on the surface of the male fastener, a gap is formed between the left claw and the right claw, and a groove is formed on the surface of the female fastener, and the left claw and the right claw extend into the groove to be locked by deformation.

[0010] Furthermore, an upper covering plate is formed on the outward side of the first side plate, the second side plate, the third side plate and the fourth side plate.

[0011] Furthermore, a pressing groove is formed between the cover plates on the connected base plate, the first side plate, the second side plate, the third side plate, and the fourth side plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The paperboard body in the utility model is composed of an outer insulating moisture-proof layer, a paperboard layer and an inner insulating layer, wherein the outer insulating moisture-proof layer is formed by pressing and compounding a PE film and moisture-proof particles, so that one surface of the PE film has moisture-proof particles, and when the outer insulating moisture-proof layer is compounded on the paperboard layer, the outer surface of the paperboard layer has a moisture-proof function. The paperboard body in the present solution is easy to splice, and the extension strips on both sides of the first side panel and the third side panel are respectively inserted into the extension notches on the second side panel and the fourth side panel, and then connected with the second side panel and the fourth side panel or the two extension strips to achieve rapid splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the embodiment 1 of the utility model after being unfolded;

[0015] Figure 2 It is a schematic diagram of the top view of the structure of the embodiment 1 of the utility model after being unfolded;

[0016] Figure 3 This is a schematic diagram of the top view of the structure of the second embodiment of the utility model after it is unfolded;

[0017] Figure 4 This is a schematic diagram of the top view of the structure of the expanded embodiment 3 of the utility model;

[0018] Figure 5 This is a schematic cross-sectional view of the connecting buckle according to an embodiment of the utility model;

[0019] Figure 6 It is a schematic diagram of the layer structure of the paperboard body in the utility model.

[0020] Markings in the figure: 1, base plate; 2, first side plate; 21, extension strip; 211, edging portion; 212, connecting portion; 2121, first through hole; 2122, third through hole; 213, rubber strip; 3, second side plate; 31, extending notch; 32, second through hole; 4, third side plate; 5, fourth side plate; 6, upper cover plate; 7, outer insulating moisture-proof layer; 71, cardboard layer; 72, inner insulating layer; 8, connecting buckle; 81, male fastener; 811, left claw; 812, right claw; 82, female fastener; 821, slot. DETAILED DESCRIPTION

[0021] In order to make the above features and advantages of the present invention more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0022] Example 1

[0023] like Figure 1 , Figure 2 and Figure 6 As shown, the present embodiment provides a double-layer coated moisture-proof carton, the cardboard body comprises a base plate 1, a first side plate 2, a second side plate 3, a third side plate 4, a fourth side plate 5 and an upper cover plate 6, the cardboard body comprises an outer insulating moisture-proof layer 7, a cardboard layer 71 and an inner insulating layer 72 from top to bottom, the outer insulating moisture-proof layer 7 is a PE film, the surface of the PE film has pits, and moisture-proof particles are arranged in the pits, wherein the outer insulating moisture-proof layer 7 is formed by pressing and compounding the PE film and the moisture-proof particles, so that one surface of the PE film has moisture-proof particles, and when the outer insulating moisture-proof layer 7 is compounded to the cardboard layer 71, the outer surface of the cardboard layer 71 has a moisture-proof function.

[0024] The cardboard body includes a base plate 1, a first side plate 2, a second side plate 3, a third side plate 4 and a fourth side plate 5. The first side plate 2, the second side plate 3, the third side plate 4 and the fourth side plate 5 are connected to the four sides of the base plate 1 in a clockwise direction, respectively. The second side plate 3 and the fourth side plate 5 have a notch 31 on their surfaces. Extension strips 21 are formed on both sides of the first side plate 2 and the third side plate 4. The extension strips 21 extend into the notch 31 and are connected to the inner walls of the second side plate 3 and the fourth side plate 5. An upper cover plate 6 is formed on the outward side of the first side plate 2, the second side plate 3, the third side plate 4 and the fourth side plate 5. A pressing groove is formed between the upper cover plates 6 of the connected base plate 1, the first side plate 2, the second side plate 3, the third side plate 4 and the fourth side plate 5 for easy folding.

[0025] The extension strip 21 includes a edging portion 211 and a connecting portion 212. The length of the edging portion 211 is the same as the width of the second side panel 3 and the fourth side panel 5. The connecting portion 212 is connected to the outer side of the edging portion 211. The length of the connecting portion 212 is less than or equal to the length extending into the notch 31. The setting of the edging portion 211 enables the gap between adjacent side panels to be closed.

[0026] A rubber strip 213 is adhered to the inner side of the connection part 212. The rubber strip 213 adopts a glue with high viscosity commonly used on the market. A pressing groove is also formed on the connection part 212. The pressing groove on the connection part 212 is located on the inner side of the rubber strip 213. The connection part 212 extends into the insertion notch 31 and is bent. The connection part 212 is bonded to the second side panel 3 or the fourth side panel 5 through the rubber strip 213 and is connected after bending to be more firm.

[0027] Example 2

[0028] like Figure 5 , Figure 5 and Figure 6 As shown, the difference between this embodiment and embodiment 1 is that a row of first through holes 2121 are arranged at equal intervals on the connecting portion 212, and two rows of second through holes 32 corresponding to the first through holes 2121 are arranged on the surface of the second side plate 3 and the fourth side plate 5. The connecting portion 212 is connected to the second side plate 3 or the fourth side plate 5 through the buckling end of the connecting buckle 8 passing through the first through hole 2121 and the second through hole 32.

[0029] The connecting buckle 8 includes a male fastener 81 and a female fastener 82. The diameters of the male fastener 81 and the female fastener 82 are larger than the diameters of the first through hole 2121, the second through hole 32 and the third through hole 2122. A left claw 811 and a right claw 812 are formed on the surface of the male fastener 81. There is a gap between the left claw 811 and the right claw 812. A groove 821 is formed on the surface of the female fastener 82. The left claw 811 and the right claw 812 extend into the groove 821 through deformation to be locked. Fixing by the connecting buckle 8 is more secure than fixing with the rubber strip 213.

[0030] Example 3

[0031] like Figure 4 , Figure 5 and Figure 6 As shown, the difference between this embodiment and embodiment 1 is that the width of the extension strip 21 is greater than half the length of the second side panel 3 and the fourth side panel 5, a third through hole 2122 is provided on the connecting portion 212, and two adjacent connecting portions 212 are connected by the buckling end of the connecting buckle 8 passing through the first through hole 2121 and the second through hole 32.

[0032] The connecting buckle 8 includes a male fastener 81 and a female fastener 82. The diameters of the male fastener 81 and the female fastener 82 are larger than the diameters of the first through hole 2121, the second through hole 32 and the third through hole 2122. A left claw 811 and a right claw 812 are formed on the surface of the male fastener 81. There is a gap between the left claw 811 and the right claw 812. A groove 821 is formed on the surface of the female fastener 82. The left claw 811 and the right claw 812 extend into the groove 821 through deformation to be locked. The splicing is achieved by connecting two adjacent connecting parts 212, so that the connecting buckle 8 can be hidden, making the box more beautiful.

[0033] The above shows and describes the basic principles and main features of the invention and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the invention, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A double-layer film-coated moisture-proof carton, characterized in that: The cardboard body comprises an outer insulating moisture-proof layer, a cardboard layer and an inner insulating layer from top to bottom, the outer insulating moisture-proof layer is a PE film, the surface of the PE film has pits, and moisture-proof particles are arranged in the pits, the cardboard body comprises a base plate, a first side plate, a second side plate, a third side plate and a fourth side plate, the first side plate, the second side plate, the third side plate and the fourth side plate are respectively connected to the four sides of the base plate in a clockwise direction, the surfaces of the second side plate and the fourth side plate have extending notches, extension strips are formed on both sides of the first side plate and the third side plate, the extension strips extend into the extending notches, the extension strips are connected to the inner walls of the second side plate and the fourth side plate or are connected to two adjacent extension strips.

2. A double-layer film-coated moisture-proof carton according to claim 1, characterized in that: The extension strip includes a edging portion and a connecting portion, the length of the edging portion is the same as the width of the second side plate and the fourth side plate, the connecting portion is connected to the outside of the edging portion, and the length of the connecting portion is less than or equal to the length extending into the notch.

3. A double-layer film-coated moisture-proof carton according to claim 2, characterized in that: The connecting portion is adhered with a rubber strip on an inner side thereof, the connecting portion extends into the extending notch and is bent, and the connecting portion is adhered to the second side plate or the fourth side plate through the rubber strip.

4. The double-layer film-coated moisture-proof carton according to claim 2, characterized in that: The connecting portion is provided with a first through hole, and the second side plate and the fourth side plate are provided with second through holes on their surfaces. The connecting portion is connected to the second side plate or the fourth side plate by the buckling end of the connecting buckle passing through the first through hole and the second through hole.

5. The double-layer film-coated moisture-proof carton according to claim 2, characterized in that: The width of the extension strip is greater than half the length of the second side plate and the fourth side plate, a third through hole is provided on the connecting portion, and two adjacent connecting portions are connected by the buckling end of the connecting buckle passing through the first through hole and the second through hole.

6. A double-layer film-coated moisture-proof carton according to claim 4 or 5, characterized in that: The connecting buckle includes a male fastener and a female fastener, the diameters of the male fastener and the female fastener are larger than the diameters of the first through hole, the second through hole and the third through hole, a left claw and a right claw are formed on the surface of the male fastener, a gap is formed between the left claw and the right claw, and a groove is formed on the surface of the female fastener, and the left claw and the right claw extend into the groove to be locked by deformation.

7. The double-layer film-coated moisture-proof carton according to claim 1, characterized in that: An upper covering plate is formed on the outward side of the first side plate, the second side plate, the third side plate and the fourth side plate.

8. The double-layer film-coated moisture-proof carton according to claim 7, characterized in that: A pressing groove is formed between the cover plates on the base plate, the first side plate, the second side plate, the third side plate and the fourth side plate that are connected to each other.

Images