Visual packaging box with covering structure

Abstract

The invention discloses a visual packaging box with a covering structure. The visual packaging box comprises a packaging box body (1) and at least one visual window (6). A containing cavity used for containing contents (7) is formed in the packaging box body (1), and the visual window (6) is formed in the side wall or the top wall of the packaging box body (1). A cover sheet (2); the box body (1) is arranged on the outer side of the packaging box body (1), and the size of the box body corresponds to that of the visual window; a sliding mechanism or a rotating mechanism; through operation of the sliding mechanism or the rotating mechanism, the shielding sheet (2) completely covers the visual window (6) or completely exposes the visual window (6). According to the visual packaging box, the four functions of light shielding, pollution prevention, visual display and repeated operation are integrated, and the problem that a traditional packaging function is single is solved; the method has important practical value and market prospect.

Description

Technical Field

[0001] The present invention belongs to the field of packaging technology, and specifically relates to a visual packaging box including a sliding or rotating covering structure, which is particularly suitable for packaging and displaying light-sensitive contents (such as coffee powder, vitamins, medicines, cigarettes, etc.). Background Art

[0002] In the food and pharmaceutical sectors, many products (such as coffee powder, vitamins, and probiotics) are sensitive to external factors like light, humidity, and oxygen. Prolonged exposure to light can lead to oxidation and deterioration, resulting in quality degradation or even failure. Therefore, the packaging of these products typically requires excellent light- and moisture-proof properties. Furthermore, consumers also want to be able to visually observe the contents (such as color, shape, and remaining quantity) during purchase or use to assess product quality.

[0003] In the prior art, there have been studies and reports on relevant packaging structures for the above-mentioned needs. CN206317491U discloses a lining paper and a cigarette box, which forms a transparent area by distributing aluminum foil strips at intervals to achieve the visual function of cigarettes, but this structure is mainly for the lining paper of cigarette packaging, relying on the composite of the aluminum foil layer and the transparent layer, and does not involve a light-proof covering structure, and the application scenario is limited to the tobacco field. CN210083780U discloses a roof-type packaging box with a visual window, which enables the observation of the contents by opening a visual window on the side of the packaging box and setting a transparent film, but the visual window is a fixed structure without a shielding device, and cannot prevent long-term exposure of the contents to light, and is not suitable for products that are sensitive to light. CN217049580U discloses a packaging box with a visual window structure, wherein a shielding strip is provided on the outside of the visual window, and the shielding strip is connected to the packaging box by a tearing structure. Although temporary shielding can be achieved, the shielding strip cannot be restored once torn off, and is not reusable, and the tearing structure easily causes damage to the packaging, affecting the sealing. CN217743136U discloses a cigarette with a transparent visual window filter rod. The easy-tear paper is formed by cutting lines on the tipping paper. After tearing it off, the transparent forming paper is exposed to observe the internal structure of the filter rod. However, this structure is for the cigarette filter rod, the easy-tear paper is a one-time design, and it does not involve an overall packaging solution for light protection and anti-fouling.

[0004] In summary, the existing technology lacks a packaging structure that can take into account both "light-proof and anti-fouling storage" and "repeated visual display". Especially for small-capacity packaging (such as small boxes of coffee powder, vitamin bottles, etc.), there is an urgent need for an easy-to-operate, reusable covering structure to meet the packaging needs of light-sensitive contents.

[0005] The present invention is proposed for this purpose. Summary of the Invention

[0006] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide a visual packaging box including a sliding or rotating covering structure. Through the design of a sliding or rotating covering sheet, the contradictory problem of light-proof and anti-fouling storage and visual display of light-sensitive contents is solved.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A visual packaging box with a covering structure, comprising:

[0009] A packaging box body 1 and at least one visualization window 6; a receiving cavity for receiving contents 7 is formed inside the packaging box body 1, and the visualization window 6 is opened on the side wall or top wall of the packaging box body 1, and the contents 7 in the receiving cavity are visible; the visualization window 6 is used to display the contents in the receiving cavity;

[0010] A cover sheet 2 is provided on the outside of the packaging box body 1, and its size corresponds to the visual window;

[0011] Sliding mechanism or rotating mechanism; by operating the sliding mechanism or rotating mechanism, the cover sheet 2 completely covers the visualization window 6 or completely exposes the visualization window 6.

[0012] Preferably, the visualization window 6 is made of a transparent material with a light transmittance of at least 85%, a thickness of 0.1-0.5 mm, and a wear-resistant coating. The transparent material used for the visualization window 6 is hermetically connected to the packaging body 1. The packaging body 1 is made of food-grade cardboard, plastic, or metal.

[0013] Preferably, the transparent material is one of glass sheet, polyethylene terephthalate PET, polypropylene PP or polycarbonate PC.

[0014] Preferably, the inner surface of the covering sheet 2 is provided with a light-proof coating, and the outer surface of the covering sheet 2 and the packaging box body 1 are integrated into one design; the light-proof coating can completely block light from entering the accommodating cavity when the covering sheet 2 covers the visualization window 6, and is integrated into the packaging box body 1.

[0015] Preferably, the sliding mechanism includes a slide groove 3 and a limiting protrusion 4; there are two slide grooves 3, which are arranged in parallel on both sides of the visualization window and are "U"-shaped, and a limiting protrusion 4 is provided at the bottom of the slide groove; the two ends of the cover sheet 2 are embedded in the slide groove 3 and can slide along the slide groove 3, so that the cover sheet 2 completely covers the visualization window 6 or completely exposes the visualization window 6; the limiting protrusion 4 is used to limit the sliding stroke of the cover sheet 2 to prevent the cover sheet 2 from escaping from the slide groove 3.

[0016] Preferably, there is a sealing groove 5 on the outer edge of the visualization window 6; there is a raised sealing member 21 on the edge of the covering sheet 2; the sealing groove 5 is adapted to the sealing member 21; when the sealing member 21 is completely in the sealing groove 5, the covering sheet 2 completely covers the visualization window 6 and ensures its sealing, which has the effect of preventing dirt and moisture from entering the contents 7 in the packaging box body 1.

[0017] Preferably, the rotating mechanism includes a rotating shaft 8; one end of the cover sheet 2 is connected to the rotating shaft 8 and can rotate along the rotating shaft 8. When not rotating, the cover sheet 2 completely covers the visualization window 6. After rotating 180 degrees, the cover sheet 2 moves away from the visualization window 6, completely exposing the visualization window 6 to achieve a visualization effect. At this time, the cover sheet 2 covers the side of the packaging box body 1 opposite the visualization window 6, saving space.

[0018] Preferably, the cover sheet 2 has a flange 20 at one end away from the rotating shaft 8; a first groove 91 is provided at the outer edge of the visualization window 6, and a second groove 92 is provided at the other end away from the visualization window 6; the flange 20 is respectively adapted to the first groove 91 and the second groove 92; when the flange 20 is in the first groove 91, the cover sheet 2 covers the visualization window 6 and ensures its sealing, and has an anti-fouling and moisture-proof effect on the contents 7 in the packaging box body 1; when the flange 20 is in the second groove 92, the cover sheet 2 does not cover the visualization window 6 at all, and the contents 7 in the packaging box body 1 can be displayed at this time; the flange 20 can also be used as an operating part for the user to hold to rotate the cover sheet 2.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention's visual packaging box with a covering structure balances light protection and display: When closed, the covering completely blocks the visual window, achieving light protection and anti-fouling through a light-proof coating and sealing structure. When open, the visual window is fully exposed, and the transparent material allows visualization of the contents within the packaging box, resolving the functional conflicts of existing coverings. By integrating four functions, namely light protection, anti-fouling, visual display, and repeatable operation, the present invention addresses the single-function problem of traditional packaging. The present invention possesses significant practical value and market prospects.

[0021] 2. The covering sheet of the visual packaging box with a covering structure of the present invention is reusable: the design of the sliding mechanism and the rotating mechanism enables the covering sheet to be operated reciprocatingly, avoiding the defect of one-time tearing of the covering structure, extending the service life of the packaging box, and being more in line with the concept of environmental protection.

[0022] 3. The visual packaging box with a covering structure of the present invention has a stable structure: the design of the slide groove, the limiting protrusion, the sealing groove and the seal ensure the stability of the sliding of the covering piece; the rotating structure realizes stable rotation and fixation through the design of the rotating shaft and the flange 20, the first groove 91 and the second groove 92, and is not easy to be damaged.

[0023] 4. The present invention's visual packaging box with a concealing structure offers strong adaptability: The visual material can be selected based on the characteristics of the contents. For example, chemically resistant PP or glass is suitable for pharmaceutical packaging, while ordinary transparent materials can be used for light-sensitive products such as coffee powder, vitamins, medicines, and cigarettes. The box's size, number of windows, and concealing structure can also be adjusted to meet the packaging requirements of the different contents, making it highly marketable. The light-proof coating can be made of non-toxic light-shielding ink, meeting food safety requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the visual packaging box with a sliding mechanism in Example 1, and the covering sheet completely covers the visual window.

[0025] Figure 2 for Figure 1 The mask does not cover the visualization window at all.

[0026] Figure 3 This is the visualization packaging box with a rotating mechanism in Example 2, and the covering sheet completely covers the visualization window.

[0027] Figure 4 for Figure 3 The mask does not cover the visualization window at all.

[0028] The figures are marked as follows: 1. packaging box body; 2. covering piece; 20. flange; 21. sealing member; 3. slide groove; 4. limiting protrusion; 5. sealing groove; 6. visualization window; 7. contents; 8. rotating shaft; 91. first groove; 92. second groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In the present invention, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," "fixed," and "bonded" should be understood in a broad sense. For example, they may refer to connection, detachable connection, or integration. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0032] In this specification, the schematic representations of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate the different embodiments or examples described in this specification.

[0033] like Figure 1-4 As shown, the present invention is a visual packaging box with a covering structure, which includes:

[0034] A packaging box body 1 and at least one visualization window 6; a receiving cavity for receiving contents 7 is formed inside the packaging box body 1, and the visualization window 6 is opened on the side wall or top wall of the packaging box body 1 and is connected to the receiving cavity; the visualization window 6 is used to display the contents in the receiving cavity;

[0035] A cover sheet 2 is provided on the outside of the packaging box body 1, and its size corresponds to the visual window;

[0036] Sliding mechanism or rotating mechanism; by operating the sliding mechanism or rotating mechanism, the cover sheet 2 completely covers the visualization window 6 or completely exposes the visualization window 6.

[0037] The visualization window 6 is made of a transparent material with a light transmittance of at least 85%, a thickness of 0.1-0.5 mm, and a wear-resistant coating. The transparent material used for the visualization window 6 is hermetically connected to the packaging body 1. The packaging body 1 is made of food-grade cardboard, plastic, or metal.

[0038] Wherein, the transparent material is one of glass sheet, polyethylene terephthalate PET, polypropylene PP or polycarbonate PC.

[0039] Among them, the inner surface of the covering sheet 2 is provided with a light-proof coating, and the outer surface of the covering sheet 2 and the packaging box body 1 are integrated into a design; the light-proof coating can completely block light from entering the accommodating cavity when the covering sheet 2 covers the visualization window 6.

[0040] Among them, the sliding mechanism includes a slide groove 3 and a limiting protrusion 4; there are two slide grooves 3, which are arranged in parallel on both sides of the visualization window and are "U"-shaped, and a limiting protrusion 4 is provided at the bottom of the slide groove; the two ends of the cover sheet 2 are embedded in the slide groove 3 and can slide along the slide groove 3, so that the cover sheet 2 completely covers the visualization window 6 or completely exposes the visualization window 6; the limiting protrusion 4 is used to limit the sliding stroke of the cover sheet 2 to prevent the cover sheet 2 from escaping from the slide groove 3.

[0041] Among them, there is a sealing groove 5 on the outer edge of the visualization window 6; there is a raised sealing part 21 on the edge of the covering sheet 2; the sealing groove 5 is adapted to the sealing part 21; when the sealing part 21 is completely in the sealing groove 5, the covering sheet 2 completely covers the visualization window 6 and ensures its sealing, which has the effect of preventing dirt and moisture from the contents 7 in the packaging box body 1.

[0042] The rotating mechanism includes a rotating shaft 8; one end of the cover sheet 2 is connected to the rotating shaft 8 and can rotate along the rotating shaft 8. When not rotating, the cover sheet 2 completely covers the visualization window 6. After rotation, the cover sheet 2 moves away from the visualization window 6, completely exposing the visualization window 6 to achieve a visualization effect. In this case, the cover sheet 2 covers the side of the packaging box body 1 opposite the visualization window 6, saving space.

[0043] Among them, the cover sheet 2 has a flange 20 at one end away from the rotating shaft 8; a first groove 91 is provided at the outer edge of the visualization window 6, and a second groove 92 is provided at the other end away from the visualization window 6; the flange 20 is adapted to the first groove 91 and the second groove 92 respectively; when the flange 20 is in the first groove 91, the cover sheet 2 covers the visualization window 6 and ensures its sealing, which has the effect of protecting the contents 7 in the packaging box body 1 from light, dirt and moisture; when the flange 20 is in the second groove 92, the cover sheet 2 does not cover the visualization window 6 at all, and the contents 7 in the packaging box body 1 can be displayed at this time; the flange 20 can also be used as an operating part for the user to hold to rotate the cover sheet 2.

[0044] The visual packaging box with a cover structure of the present invention balances light protection and display: When closed, the cover completely blocks the visual window, achieving light protection and anti-fouling through a lightproof coating and sealing structure. When opened, the visual window is exposed, and the contents of the package body are visible through a transparent material, resolving the functional contradictions of the existing technology. The visual packaging box with a cover structure of the present invention is reusable: the sliding and rotating mechanisms enable the cover to reciprocate, avoiding the drawbacks of a one-time tearing cover structure, extending the service life of the package and being more environmentally friendly. The visual packaging box with a cover structure of the present invention is structurally stable: the sliding groove, retaining protrusion, sealing groove, and seal ensure the sliding stability of the cover; the rotating structure, through the design of the rotating shaft, flange 20, first groove 91, and second groove 92, ensures stable rotation and is not easily damaged. The visual packaging box with a cover structure of the present invention is highly adaptable: the visual material can be selected according to the characteristics of the contents. For example, chemically resistant PP or glass is suitable for pharmaceutical packaging. Ordinary transparent materials can be used for light-sensitive products such as coffee powder, vitamins, and pharmaceuticals.

[0045] Example 1: A visual packaging box with a sliding cover structure, used for packaging coffee powder.

[0046] like Figure 1-Figure 2 As shown, this embodiment provides a sliding visual packaging box suitable for coffee powder packaging, and its specific structure is as follows:

[0047] Packaging box body 1: Made of food-grade white cardboard, it has a rectangular structure and an internal cavity for storing coffee powder;

[0048] Visual window 6: A rectangular window is opened in the middle of the front side wall of the packaging box body using a transparent PET plastic sheet. The transparent PET plastic sheet is sealed to the side wall of the box body with food-grade hot melt adhesive to ensure sealing;

[0049] Sliding mechanism: It includes two parallel slides 3 made of PP material, fixed to the front side wall of the packaging box body by gluing, symmetrically distributed on the left and right sides of the visual window, and extending in the vertical direction; the slide cross-section is "U"-shaped, and the bottom (top) end of the slide is provided with a limit protrusion 4 for limiting the sliding travel of the cover sheet 2;

[0050] Cover sheet 2: Made of food-grade white cardboard, the inner side of the slide is printed with a black light-shielding coating, and the outer side forms an integrated pattern with the packaging box body. When the visual window 6 is completely covered, it forms a whole with the packaging box body;

[0051] Sealing structure: includes a sealing groove 5 and a sealing member 21, the sealing groove 5 is at the outer edge of the visualization window 6; the sealing member 21 has a protrusion at the edge of the covering sheet 2; the sealing groove 5 is adapted to the sealing member 21; when the sealing member 21 is completely in the sealing groove 5, the covering sheet 2 completely covers the visualization window 6, forming a seal to prevent moisture and dust from entering, and has an anti-fouling and moisture-proof effect on the contents 7 in the packaging box body 1.

[0052] Working process:

[0053] like Figure 1 As shown, when not in use, the cover sheet 2 is located on the visualization window 6, completely covering the visualization window 6, the light-shielding coating blocks light from entering, and the seal 21 completely fixes the cover sheet 2 in the sealing groove 5, while ensuring that the coffee powder in the internal accommodating cavity of the packaging box is moisture-proof and stain-proof.

[0054] like Figure 2 As shown, when the state of the coffee powder in the package box needs to be observed, the covering sheet 2 is pushed, and the covering sheet 2 slides upward along the slide groove 3, gradually revealing the visualization window 6. The color and remaining amount of the coffee powder inside the package box can be observed through the transparent plastic sheet.

[0055] After the observation is completed, push the cover sheet 2 to slide down and reset, re-cover the visualization window 6, and restore the light-proof state. The sealing member 21 is inserted into the sealing groove 5 to fix the cover sheet 2 and ensure the seal is moisture-proof and anti-fouling; Figure 1 shown.

[0056] Example 2: A visual packaging box whose covering structure is a rotating mechanism is used for vitamin packaging.

[0057] like Figure 3-Figure 4 As shown, this embodiment provides a rotating visual packaging box suitable for vitamin packaging, and its specific structure is as follows:

[0058] Packaging box body 1: Made of food-grade PP plastic injection molding, it has a rectangular structure.

[0059] Visualization window 6: A rectangular visualization window is opened on the top (right side) of the packaging box, inlaid with a PC transparent plastic sheet, and hot-melt sealed with the box body; there is a first groove 91 on the outer edge of the visualization window 6, and a second groove 92 on the other end away from the visualization window 6

[0060] Rotating cover 2: Made of food-grade PP plastic, the inner side of the cover 2 (the side facing the box body) is printed with a black light-shielding coating, and the outer side forms an integrated pattern with the packaging box body. The end of the cover 2 away from the rotating shaft 8 has a flange 20;

[0061] The rotating mechanism comprises a rotating shaft 8 , one end of the covering sheet 2 is connected to the rotating shaft 8 and can rotate along the rotating shaft 8 .

[0062] Working process:

[0063] like Figure 3 As shown, when not in use, when the flange 20 is in the first groove 91, the cover sheet 2 is fixed and covers the visualization window 6 to ensure its sealing, which has the effect of protecting the contents 7 in the packaging box body 1 from light, dirt and moisture;

[0064] When it is necessary to observe the vitamin tablets in the package, the flange 20 is used as the operating part to horizontally flip the cover sheet 2 so that it rotates 180° to the left around the rotation axis 8. At this time, the visualization window 6 is completely exposed, and the status of the vitamin tablets in the package can be observed through the PC transparent plastic sheet; at this time, the flange 20 can be placed in the second groove 92; Figure 4 As shown;

[0065] After the observation is completed, the flange 20 is used as the operating part to horizontally flip the cover sheet 2 and rotate it 180° to the right around the rotation axis 8 so that the cover sheet 2 completely covers the visualization window 6. The flange 20 is inserted into the first groove 91, and the sealing structure is reset and locked. The cover sheet 2 is fixed and the obstruction state of the visualization window 6 is restored, protecting the contents 7 in the packaging box body 1 from light, dirt and moisture. Figure 3 shown.

[0066] The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the spirit and scope of the present invention also fall within the scope of protection of the present invention.

Claims

1. A visual packaging box with a covering structure, characterized in that: It includes: A packaging box body (1) and at least one visualization window (6); a receiving cavity for receiving contents (7) is formed inside the packaging box body (1), and the visualization window (6) is opened on the side wall or top wall of the packaging box body (1); A covering sheet (2) is arranged on the outside of the packaging box body (1), and its size corresponds to the visual window; A sliding mechanism or a rotating mechanism; by operating the sliding mechanism or the rotating mechanism, the cover sheet (2) completely covers the visualization window (6) or completely exposes the visualization window (6).

2. The visual packaging box with a covering structure according to claim 1, characterized in that: The visualization window (6) is made of a transparent material, the light transmittance of the transparent material is not less than 85%, and the thickness is 0.1-0.5 mm.

3. The visual packaging box with a covering structure according to claim 2, characterized in that: The transparent material is one of glass sheet, polyethylene terephthalate (PET), polypropylene (PP) or polycarbonate (PC).

4. The visual packaging box with a covering structure according to claim 1, characterized in that: The inner surface of the covering sheet (2) is provided with a light-proof coating, and the outer surface of the covering sheet (2) and the packaging box body (1) present an integrated design.

5. The visual packaging box with a covering structure according to claim 1, characterized in that: The sliding mechanism comprises a sliding groove (3) and a limiting protrusion (4); the sliding grooves (3) are two and are arranged in parallel on both sides of the visualization window and are in a "U" shape, and the limiting protrusion (4) is provided at the bottom end of the sliding groove; the two ends of the covering sheet (2) are embedded in the sliding groove (3) and can slide along the sliding groove (3).

6. The visual packaging box with a covering structure according to claim 5, characterized in that: A sealing groove (5) is provided at the outer edge of the visualization window (6); a raised sealing member (21) is provided at the edge of the cover sheet (2); and the sealing groove (5) is adapted to the sealing member (21).

7. The visual packaging box with a covering structure according to claim 1, characterized in that: The rotating mechanism comprises a rotating shaft (8); one end of the covering sheet (2) is connected to the rotating shaft (8) and can rotate along the rotating shaft (8).

8. The visual packaging box with a covering structure according to claim 7, characterized in that: The cover sheet (2) has a flange (20) at one end away from the rotating shaft (8); a first groove (91) is provided at the outer edge of the visualization window (6), and a second groove (92) is provided at the other end away from the visualization window (6); the flange (20) is respectively adapted to the first groove (91) and the second groove (92).

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