A package that can be opened repeatedly on both sides

Abstract

The utility model provides a kind of packaging box that can be opened repeatedly on both sides, belong to packaging box technical field.The packaging box that can be opened repeatedly on both sides includes seal, shell, inner frame.In the utility model, the third part of seal and the first part of shell are separated, the first sealing piece is separated from the second taking-out port, then the second taking-out port can be exposed, the fourth part of seal and the second part of shell are separated, the second sealing piece is separated from the third taking-out port, then the third taking-out port can be exposed, after the article is taken out, the first sealing piece seals the second taking-out port, the second sealing piece seals the third taking-out port, the third part of seal is connected to the first part of shell, the fourth part of seal is connected to the second part of shell, the sealing of the second taking-out port and the third taking-out port is realized, the user opens and seals the packaging box synchronously on both sides of the packaging box, the article in the packaging box is conveniently taken out, and the packaging box is not damaged, the storage time of the article in the box is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, specifically to a packaging box that can be repeatedly opened from both sides. Background Technology

[0002] Consumer goods are typically packaged in various forms for sale to consumers. Taking cigarette packaging as an example, cigarette packaging maintains a certain moisture content in the cigarettes. This effectively prevents the aroma from fading or even becoming moldy due to the tobacco absorbing moisture in humid environments, while also ensuring the tobacco doesn't lose moisture in dry seasons. Furthermore, cigarette packaging prevents the loss of aroma and the intrusion of odors. Cigarette packaging is mainly divided into hard-pack and soft-pack packaging. Soft-pack packaging uses a soft paper outer layer, while hard-pack packaging uses white cardboard. With innovation in consumer product packaging, the line between hard-pack and soft-pack packaging has become blurred. For example, hard-pack packaging combines the form factor of soft-pack packaging with the sturdiness and portability of hard-pack packaging. However, regardless of whether it's a soft-pack or hard-pack, the initial opening of the packaging breaks the seal. The moisture and aroma of the cigarettes inside cannot be guaranteed, and they are easily affected by external humidity and odors. Existing packaging designs include resealable boxes, but these boxes can only be opened from one side, and items on the other side may be stuck inside due to their size and cannot be removed.

[0003] Chinese Patent CN1117015C, published on August 6, 2003, discloses a hard-pack packaging for smoking articles that improves shelf life and is resealable. A barrier material is sealed around the hard-pack packaging. The hard-pack packaging has a potential or actual entrance extending from the top surface to the main surface. The barrier material has discontinuous or weakened lines defining the flaps and aligning with the potential or actual entrance. Above the flaps is a film layer that covers the flaps at each discontinuous side with a portion having a permanent adhesive. A non-adhesive pull tab is preferably provided on the film layer. The user can open the packaging by lifting the flaps, and the entrance can be opened if necessary. After removing the cigarettes, the gaps in the barrier material can be reclosed and sealed by resetting the adhesive layer, which can be done through the flaps of the barrier material. Chinese Patent CN104114464B, published on August 24, 2016, discloses a container for consumer products. The container includes a shell, which comprises a box and a lid hinged to the box. An inner package of the consumer product has an access opening through which the consumer product can be removed. An adhesive label is configured to cover the access opening and extend beyond the outer periphery of the access opening of the inner package. The adhesive label is at least partially removably attached to the inner package by a resealable adhesive disposed on a first area of ​​the inner surface of the adhesive label, the first area extending around at least the lower periphery of the access opening of the inner package. A second area of ​​the inner surface of the adhesive label is permanently attached to the inner surface of the front wall of the lid of the outer container. A third area of ​​the inner surface of the adhesive label, located between the first and second areas, is substantially without adhesive. In both of the aforementioned patents, the packaging boxes can only be opened from one side, and items on the other side may be stuck inside due to size and cannot be removed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing a packaging box that can be repeatedly opened from both sides.

[0005] This utility model proposes a packaging box that can be repeatedly opened from both sides, including a seal, an outer shell, and an inner frame disposed inside the outer shell for storing items. A first retrieval opening is provided through the inner frame. The outer shell includes a housing, a first sealing sheet, a second sealing sheet, and a second and a third retrieval opening respectively disposed through the housing. Both the second and third retrieval openings communicate with the first retrieval opening. The fixed ends of the first and second sealing sheets are connected to the top surface of the housing. The free end of the first sealing sheet can rotate around its fixed end to seal at least a portion of the second retrieval opening. The free end of the second sealing sheet can rotate around its fixed end to seal at least a portion of the third retrieval opening. A first part of the seal is connected to the side of the first sealing sheet away from the second retrieval opening, and a second part of the seal is connected to the side of the second sealing sheet away from the third retrieval opening. A third part of the seal is detachably connected to the first part of the housing to fix the first sealing sheet. A fourth part of the seal is detachably connected to the second part of the housing to fix the second sealing sheet.

[0006] Furthermore, both the outer shell and the inner frame are rectangular. The first and second parts of the seal are fixedly connected to the first and second sealing sheets, respectively; the third and fourth parts of the seal are detachably adhered to the shell.

[0007] Furthermore, the outer casing is a plastic casing.

[0008] Furthermore, the inner frame includes a front frame and a back frame disposed opposite to each other. The first retrieval port includes a first opening penetrating the top of the inner frame, a second opening penetrating the front frame, and a third opening penetrating the back frame. The second and third openings are both connected to the first opening. The housing includes a top surface, a front housing disposed near the front frame, and a back housing disposed near the back frame. The front and back housings are both connected to the top surface. The second retrieval port includes a fourth opening penetrating the top surface and a fifth opening penetrating the front housing and communicating with the fourth opening. The third retrieval port includes a sixth opening penetrating the top surface and a seventh opening penetrating the back housing and communicating with the sixth opening.

[0009] Furthermore, both the first and second sealing sheets are integrally formed with the housing. The housing also includes a first and a second cutting line disposed opposite to each other, both of which are open lines. The middle part of the first cutting line is located on the front of the frame, and its two ends extend to the top surface. The middle part of the second cutting line is located on the back of the frame, and its two ends extend to the top surface. The second retrieval port is connected to the first cutting line, with a portion of the second retrieval port located on the top surface and another portion located on the front of the frame. The third retrieval port is connected to the second cutting line, with a portion of the third retrieval port located on the top surface and another portion located on the back of the frame. Both the first and second sealing sheets are integrally formed with the housing. The first sealing sheet matches the second retrieval port, and the second sealing sheet matches the third retrieval port.

[0010] Furthermore, the axes of the first cutting line and the second cutting line coincide, and the seal includes a first adhesive area and a second adhesive area annularly disposed around the outer periphery of the first adhesive area. The axis of the first adhesive area coincides with the axis of the first cutting line. The first adhesive area is fixed to the first sealing sheet, the second sealing sheet and the top surface respectively, and the second adhesive area is detachably bonded to the front, back and top surfaces of the frame respectively.

[0011] Furthermore, the second adhesive area extends along both ends of its axis and is provided with a first tear-off area near the front of the frame and a second tear-off area near the back of the frame, respectively. The first tear-off area is separated from the front of the frame and the second tear-off area is separated from the back of the frame.

[0012] Furthermore, both the first and second cutting lines are U-shaped cutting lines.

[0013] Furthermore, the minimum distance between the second bonding area and the second bonding area is not less than 3mm.

[0014] Furthermore, the first tear-off area and the second tear-off area are symmetrically arranged, and the distance between the end of the first tear-off area away from the second adhesive area and the end of the first tear-off area connected to the second adhesive area is not less than 2mm.

[0015] The packaging box that can be repeatedly opened from both sides according to this utility model has the following beneficial effects:

[0016] The third part of the seal is detachably connected to the first part of the housing. Separating the third part of the seal from the first part of the housing causes the first sealing plate to detach from the second retrieval opening, thus exposing the second retrieval opening. The fourth part of the seal is detachably connected to the second part of the housing. Separating the fourth part of the seal from the second part of the housing causes the second sealing plate to detach from the third retrieval opening, thus exposing the third retrieval opening. Items can then be retrieved from the inner frame by inserting them into the second and third retrieval openings respectively, passing through the first retrieval opening. This allows the packaging box to open from both sides. After the items are removed, the first sealing plate seals the second retrieval opening, and the second sealing plate seals the third retrieval opening. Connecting the third part of the seal to the first part of the housing and the fourth part of the seal to the second part of the housing seals both the second and third retrieval openings. Users can simultaneously open and seal the packaging box from both sides, conveniently retrieving items without damaging the packaging box, thus extending the storage time of the items inside. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0018] Figure 1 This is a schematic diagram of the structure of a packaging box that can be repeatedly opened from both sides according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a packaging box that can be repeatedly opened from both sides without a seal, according to an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the structure of a packaging box that can be repeatedly opened from both sides, omitting the seal and the first sealing sheet when it is opened, according to an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the structure of a packaging box that can be repeatedly opened from both sides, omitting the seal, the first sealing sheet, and the second sealing sheet when they are open, according to an embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the structure of a packaging box that can be repeatedly opened from both sides when the outer shell is unfolded, according to an embodiment of the present utility model.

[0023] Figure 6 This is a schematic diagram of the inner frame of a packaging box that can be repeatedly opened from both sides, according to an embodiment of the present utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the inner frame of a packaging box that can be repeatedly opened on both sides when unfolded, according to an embodiment of the present utility model.

[0025] Figure 8 This is a schematic diagram of the structure of a double-sided repeatedly openable inner seal of a packaging box according to an embodiment of the present invention.

[0026] In the diagram: 1-Outer shell, 11-Shell, 111-Front side of shell, 112-Back side of shell, 113-Top surface, 114-Indentation line of shell, 12-First sealing plate, 13-Second sealing plate, 14-First cutting line, 15-Second cutting line, 16-Third cutting line, 17-Fourth cutting line, 2-Inner frame, 21-Front side of frame, 211-Second opening, 22-Back side of frame, 221-Third opening, 23-Bottom side of frame, 24-Indentation line of frame, 3-Seal, 31-First adhesive area, 32-Second adhesive area, 33-First tear-off area, 34-Second tear-off area, 4-Item. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0028] Please see Figures 1 to 8This utility model discloses a packaging box that can be repeatedly opened from both sides, including a seal 3, an outer shell 1, and an inner frame 2 disposed inside the outer shell 1 for storing items 4. A first retrieval opening is provided through the inner frame 2. The outer shell 1 includes a housing 11, a first sealing plate 12, a second sealing plate 13, and a second retrieval opening and a third retrieval opening respectively disposed through the housing 11. Both the second and third retrieval openings communicate with the first retrieval opening. The fixed ends of the first sealing plate 12 and the second sealing plate 13 are connected to the top surface 113 of the housing 11. The free end of the first sealing plate 12 can be rotated around... Its fixed end rotates to seal at least a portion of the second retrieval port; the free end of the second sealing plate 13 can rotate around its fixed end to seal at least a portion of the third retrieval port; the first part of the seal 3 is connected to the side of the first sealing plate 12 away from the second retrieval port, and the second part of the seal 3 is connected to the side of the second sealing plate 13 away from the third retrieval port; the third part of the seal 3 is detachably connected to the first part of the housing 11 to fix the first sealing plate 12; the fourth part of the seal 3 is detachably connected to the second part of the housing 11 to fix the second sealing plate 13.

[0029] Here, the user can separate the third part of the seal 3 from the first part of the housing 11, and rotate the free end of the first sealing plate 12 away from the second retrieval port around its fixed end, causing the first sealing plate 12 to separate from the second retrieval port. The user can also separate the fourth part of the seal 3 from the second part of the housing 11, and rotate the free end of the second sealing plate 13 away from the third retrieval port around its fixed end, causing the second sealing plate 13 to separate from the third retrieval port. Since both the second and third retrieval ports are connected to the first retrieval port, the user's hand can pass through the second retrieval port and the first retrieval port in sequence to take out the item 4 from the inner frame 2. The user's hand can also pass through the third retrieval port and the... The first retrieval opening allows the item 4 to be removed from the inner frame 2. After the item 4 is removed, the free end of the first sealing plate 12 rotates around its fixed end towards the second retrieval opening, causing the first sealing plate 12 to rotate to seal at least a portion of the second retrieval opening. Simultaneously, the third part of the seal 3 is connected to the first part of the housing 11, thereby fixing the first sealing plate 12 and sealing the second retrieval opening. The free end of the second sealing plate 13 rotates around its fixed end towards the third retrieval opening, causing the second sealing plate 13 to rotate to seal at least a portion of the third retrieval opening. Simultaneously, the fourth part of the seal 3 is connected to the second part of the housing 11, thereby fixing the second sealing plate 13 and sealing the third retrieval opening. The user can open or seal the housing 11 from both sides, thereby extending the storage time of the item 4 inside the box. While ensuring the airtightness of the packaging box, the item 4 can be removed from both sides of the packaging box simultaneously. The packaging box is suitable for both soft box packaging and soft box hardening packaging. The two side structures can operate independently without interference, making it convenient for the user to remove the item 4 from the outer shell 1 from either side.

[0030] Specifically, the first part of the seal 3 is fixedly connected to the first sealing sheet 12, and the second part of the seal 3 is fixedly connected to the second sealing sheet 13. A first adhesive can be applied to both the first and second parts of the seal 3, ensuring that the first part of the seal 3 is fixedly connected to the first sealing sheet 12, and the second part of the seal 3 is fixedly connected to the second sealing sheet 13. The first adhesive is a strong adhesive, which ensures stable connection between the seal 3 and the first sealing sheet 12 and the second sealing sheet 13, making it difficult to remove. The strong adhesive can be one of the following: epoxy resin, polyvinyl acetate (PVAc), urea-formaldehyde resin powder, or an adhesive prepared by mixing polyvinyl alcohol with kaolin, glyoxal, etc. Epoxy resin adhesive: Epoxy resin adhesive is a two-component chemically reactive adhesive that forms a three-dimensional cross-linked structure after curing, exhibiting excellent shear strength and weather resistance, making it suitable for long-term outdoor use in papermaking; Polyvinyl acetate adhesive (PVAc): This is a one-component water-based adhesive with strong penetration into porous materials. After curing, it forms a flexible adhesive layer that effectively compensates for the thermal expansion and contraction of paper; Polyvinyl alcohol: Polyvinyl alcohol is an adhesive prepared by mixing with kaolin, glyoxal, and other components, suitable for strong bonding of paper; Urea-formaldehyde resin powder: Urea-formaldehyde resin powder is a high-temperature adhesive suitable for bonding materials such as wood and paper.

[0031] Specifically, the third and fourth parts of seal 3 are detachably adhered to the housing 11. The third part of seal 3 can be coated with a reusable second adhesive, allowing it to be peeled off when adhering to the first part of housing 11, and then reattached to the first part of housing 11. The third part of seal 3 can be repeatedly peeled off and reattached to the first part of housing 11. Similarly, the fourth part of seal 3 can be coated with the same reusable second adhesive, allowing it to be peeled off when adhering to the second part of housing 11, and then reattached to the second part of housing 11. The second adhesive can be one of traceless tape, all-purpose gel, or double-sided tape. Residue-free tape is a reusable double-sided tape made of a special material. It can be repeatedly applied and removed without leaving any residue on the product. All-purpose gel is a reusable adhesive. It is mainly composed of high-viscosity polymers, water, and soft, easy-to-use additives. It can bond various materials while maintaining strength and adhesion. Compared to double-sided tape, all-purpose gel has a longer lifespan and can be used on different surfaces for a longer period without causing material damage or detachment. Double-sided tape is a specially treated adhesive that can be repeatedly applied. Before using double-sided tape, ensure the surface to which it will be applied is as flat, dry, and clean as possible. It is important to note that double-sided tape is not suitable for prolonged application on different surfaces, as this can easily lead to surface damage or detachment. Therefore, it is recommended to limit the application time of double-sided tape to no more than 2-3 days.

[0032] Both the outer shell 1 and the inner frame 2 can be rectangular.

[0033] Specifically, the outer shell 1 can be a cuboid, the outer shell 11 can be a cuboid, and the inner frame 2 can be a cuboid that matches the inner space of the outer shell 1, so that items 4 can be placed inside the inner frame 2. Items 4 can be cigarette products, and items 4 can be various strip-shaped items 4, such as candy, biscuits, etc. A second retrieval port and a third retrieval port are respectively provided through the outer shell 11, and a first retrieval port is provided through the inner frame 2. The second retrieval port and the third retrieval port are respectively connected to the first retrieval port. The user's hand can pass through the second retrieval port and the first retrieval port in sequence to reach into the inner frame 2 and take out items 4. The user's hand can also pass through the third retrieval port and the first retrieval port in sequence to reach into the inner frame 2 and take out items 4.

[0034] The outer casing 1 can be a plastic outer casing 1.

[0035] Specifically, the outer shell 1 can be made of a high-barrier material, which is a membrane material that effectively blocks water and air. High-barrier materials include, but are not limited to, metal-plated plastics, multilayer composite materials, nanocomposite materials, or combinations thereof. High-barrier materials are typically metal-plated plastics, i.e., a layer of metal (such as aluminum) is plated onto the surface of polyester (PET), polypropylene (PP), or polyethylene (PE). When the outer shell 1 is a plastic shell 1, the inner frame 2 matches the inner space of the outer shell 1, allowing the inner frame 2 to support the outer shell 1 and store items 4. The outer shell 1 uses an aluminized polyethylene (PE) film, which effectively blocks water and air.

[0036] Specifically, the inner frame 2 can be formed of any suitable material, including but not limited to cardboard, plastic, metal, or combinations thereof. Preferably, the inner frame 2 is made of white cardboard, and the basis weight of the cardboard is between approximately 100 g / m³. 2 and approximately 350g / m 2 between.

[0037] Specifically, the seal 3 can be a seal 3 made of a material that blocks water and air. The material used to make the seal 3 includes, but is not limited to, metal-plated plastic, multilayer composite material, nano composite material or a combination thereof. Preferably, it is usually metal-plated plastic, that is, a layer of metal (such as aluminum) is plated on the surface of polyester (PET), polypropylene (PP) or polyethylene (PE).

[0038] The inner frame 2 may include a front frame 21 and a back frame 22 disposed opposite to each other. The first retrieval port includes a first opening that penetrates the top of the inner frame 2, a second opening 211 that penetrates the front frame 21, and a third opening 221 that penetrates the back frame 22. The second opening 211 and the third opening 221 are both connected to the first opening. The shell 11 includes a top surface 113, a shell front surface 111 disposed near the front frame 21, and a shell back surface 112 disposed near the back frame 22. The shell front surface 111 and the shell back surface 112 are both connected to the top surface 113. The second retrieval port includes a fourth opening that penetrates the top surface 113 and a fifth opening that penetrates the shell front surface 111 and communicates with the fourth opening. The third retrieval port includes a sixth opening that penetrates the top surface 113 and a seventh opening that penetrates the shell back surface 112 and communicates with the sixth opening.

[0039] Specifically, the area of ​​the first opening can be equal to the area of ​​the top of the inner frame 2, meaning the inner frame 2 has an opening at the top, making it a five-sided cuboid. The first opening is rectangular, as are the second and third openings 211 and 221. The first opening can be located at the top of the front side 21 of the frame, and the second opening 211 can be located at the top of the back side 22 of the frame. The first and second openings 211 can be symmetrically positioned. The fourth, fifth, sixth, and seventh openings can all be rectangular. The fourth and fifth openings are connected, as are the sixth and seventh openings. The fourth opening can be parallel to the first opening, and the fifth opening can be parallel to the second opening 211. The area of ​​the fifth opening can be equal to the area of ​​the second opening 211. The fourth and fifth openings are connected to the first and second openings 211. The sixth opening can be parallel to the first opening, and the seventh opening can be parallel to the third opening 221. The area of ​​the seventh opening can be equal to the area of ​​the third opening 221. The sixth and seventh openings are connected to the first and third openings 221. The first opening is located at the top center of the front of the frame 21, and the second opening 211 is located at the top center of the back of the frame 22. The first opening can cover the fifth opening, and the second opening 211 can cover the seventh opening.

[0040] Specifically, the inner frame 2 also includes a first frame side, a second frame side, and a frame bottom surface 23. The frame front 21, the frame back 22, the first frame side, and the second frame side are connected by an adhesive. The first frame side and the second frame side are arranged opposite to each other. The first frame side is connected to the frame front 21 and the frame back 22 respectively, and the second frame side is connected to the frame front 21 and the frame back 22 respectively. The frame bottom surface 23 is hinged to the frame front 21 and the frame back 22 respectively. The inner frame 2 also includes multiple frame crease lines 24. One frame crease line 24 is located at the connection between the front surface 21 of the frame and the side of the first frame; another frame crease line 24 is located at the connection between the back surface 22 of the frame and the front surface 21 of the first frame; another frame crease line 24 is located at the connection between the front surface 21 of the frame and the side of the second frame; and a frame crease line 24 is located at the connection between the bottom surface 23 of the frame and the front surface 21, the side of the first frame, the back surface 22 of the frame, and the side of the second frame. The frame crease lines 24 can be folded, and after folding, they are connected around the perimeter with adhesive. The frame crease lines 24 can be used for folding and positioning during production and processing.

[0041] Specifically, the shell 11 also includes a first shell side surface, a second shell side surface, and a shell bottom surface. The shell front surface 111, the shell back surface 112, the first shell side surface, and the second shell side surface are connected by an adhesive. The first shell side surface and the second shell side surface are arranged opposite to each other. The first shell side surface is connected to the shell front surface 111 and the shell back surface 112 respectively. The second shell side surface is connected to the shell front surface 111 and the shell back surface 112 respectively. The shell bottom surface is hinged to the shell front surface 111 and the shell back surface 112 respectively. The top surface 113 is hinged to the shell front surface 111 and the shell side surface respectively. The inner shell also includes multiple shell crease lines 114. One shell crease line 114 is located at the junction of the front shell 111 and the first shell side; another shell crease line 114 is located at the junction of the back shell 112 and the first shell front 111; another shell crease line 114 is located at the junction of the front shell 111 and the second shell side; and another shell crease line 114 is located at the junction of the bottom surface of the shell with the front shell 111, the first shell side, the back shell 112, and the second shell side. The shell crease lines 114 can be folded, and after folding, they are connected around the perimeter with adhesive. The shell crease lines 114 can be used for folding and positioning during production and processing.

[0042] Both the first sealing sheet 12 and the second sealing sheet 13 can be integrally formed with the housing 11. The housing 1 also includes a first cutting line 14 and a second cutting line 15 arranged opposite to each other. Both the first cutting line 14 and the second cutting line 15 are open lines. The middle part of the first cutting line 14 is located on the front surface 21 of the frame, and the two ends extend to the top surface 113 respectively. The middle part of the second cutting line 15 is located on the back surface 22 of the frame, and the two ends extend to the top surface 113 respectively. The second retrieval port is connected to the first cutting line 14. A part of the second retrieval port is located on the top surface 113, and the other part is located on the front surface 21 of the frame. The third retrieval port is connected to the second cutting line 15. A part of the third retrieval port is located on the top surface 113, and the other part is located on the back surface 22 of the frame. Both the first sealing sheet 12 and the second sealing sheet 13 are integrally formed with the housing 11. The first sealing sheet 12 matches the second retrieval port, and the second sealing sheet 13 matches the third retrieval port.

[0043] Specifically, the top two sides of the outer casing 1 are respectively provided with a first cutting line 14 and a second cutting line 15, which can be torn to form a second retrieval opening and a third retrieval opening, and the item 4 inside the packaging box can be taken out from the second retrieval opening and the third retrieval opening respectively. The first cutting line 14 and the second cutting line 15 can be of the same width in opposite directions.

[0044] The axes of the first cutting line 14 and the second cutting line 15 can coincide. The seal 3 includes a first adhesive area 31 and a second adhesive area 32 arranged in a ring around the outer periphery of the first adhesive area 31. The axis of the first adhesive area 31 coincides with the axis of the first cutting line. The first adhesive area 31 is fixed to the first sealing sheet 12, the second sealing sheet 13 and the top surface 113 respectively. The second adhesive area 32 is detachably bonded to the front surface 21 of the frame, the back surface 22 of the frame and the top surface 113 respectively.

[0045] The second adhesive area 32 can be extended along both ends of its axis to provide a first tear-off area 33 near the front side 21 of the frame and a second tear-off area 34 near the back side 22 of the frame. The first tear-off area 33 is separated from the front side 21 of the frame, and the second tear-off area 34 is separated from the back side 22 of the frame.

[0046] Specifically, a first adhesive is applied to the first bonding area 31, so that the first bonding area 31 can be fixedly connected to the first sealing sheet 12, the second sealing sheet 13, and the first part of the top surface 113. The first adhesive is a strong adhesive, which can ensure that the first bonding area 31 is stably connected to the first sealing sheet 12, the second sealing sheet 13, and the top surface 113 respectively, and the first bonding area 31 is not easily removed from the first sealing sheet 12, the second sealing sheet 13, and the top surface 113 respectively. The strong adhesive can be one of epoxy resin, polyvinyl acetate (PVAc), urea-formaldehyde resin powder, or an adhesive prepared by mixing polyvinyl alcohol with kaolin, glyoxal, etc. A second adhesive that can be applied and repeatedly bonded is applied to the second bonding area 32, so that when the second bonding area 32 is bonded to the front 111 and back 112 of the shell respectively, the second bonding area 32 can be peeled off from the front 111 and back 112 of the shell, and can be bonded to the front 111 and back 112 of the shell again. The second bonding area 32 can be peeled off from the front 111 and bonded to the front 111 and back 112 of the shell multiple times. The second bonding area 32 can be peeled off from the back 112 and bonded to the back 112 of the shell multiple times. That is, the second bonding area 32 can be repeatedly bonded to the front 111 and back 112 of the shell. The first tear-off area 33 and the second tear-off area 34 are not coated with adhesive, so that the user can easily peel off the second bonding area 32 from the front 111 of the shell by pulling the first tear-off area 33, and easily peel off the second bonding area 32 from the back 112 of the shell by pulling the second tear-off area 34. Users can repeatedly open or seal the packaging box from the front or back, thereby extending the storage time of the items inside.

[0047] Both the first cutting line 14 and the second cutting line 15 can be U-shaped cutting lines.

[0048] Specifically, the outer casing 1 also includes two third cutting lines 16 respectively disposed at both ends of the first cutting line 14 and two fourth cutting lines 17 respectively disposed at both ends of the second cutting line 15. Both third cutting lines 16 and both fourth cutting lines 17 can be U-shaped cutting lines. The two third cutting lines 16 are arranged facing away from each other, and the two fourth cutting lines 17 are arranged facing each other. The inner diameter of the third cutting line 16 is smaller than the inner diameter of the first cutting line 14, and the inner diameter of the fourth cutting line 17 is smaller than the inner diameter of the second cutting line 15. The two ends of the first cutting line 14 are the starting and ending points of the first cutting line 14, and the two ends of the second cutting line 15 are the starting and ending points of the second cutting line 15. The top of the outer casing 1 has two U-shaped cutting lines of the same width in opposite directions on both sides. Specifically, there is a first cutting line 14 and a second cutting line 15 on both sides of the top of the outer casing 1. The starting and ending points of these cutting lines are small U-shaped cuts. A small third cutting line 16 is located at the starting and ending points of the first cutting line 14, and a small fourth cutting line 17 is located at the starting and ending points of the second cutting line 15. The casing 1 can be torn open from both sides of the top along the first cutting line 14 and the second cutting line 15. The tearing position is locked by a reverse shearing force at the starting and ending points of the first cutting line 14 and the second cutting line 15. The first and second cutting lines 14 and 15 are not connected, and the third and fourth cutting lines 16 and 17 are not connected. The minimum distance between the third and fourth cutting lines 16 and 17 is not less than 2 mm. The second cutting line 15 is located between the two ends of the first cutting line 14 on the top surface 113. The second cutting line 15 and the first cutting line 14 intersect but are not connected at the middle position of the top surface 113. The two third cutting lines 16 are arranged outwards, and the two fourth cutting lines 17 are arranged inwards.

[0049] Specifically, both the first cutting line 14 and the second cutting line 15 can be through lines, in which case the seal 3 should be produced simultaneously with the outer casing 1. Alternatively, both the first cutting line 14 and the second cutting line 15 can be point cuts, with the connection point width not exceeding 0.5mm. The length of one line of the first cutting line 14 on the top surface 113 is not less than 1 / 3 of the width of the top surface 113 of the casing 11. The distance between the two ends of the first cutting line 14 on the top surface 113 is not less than 3 / 7 of the length of the top surface 113 of the casing 11.

[0050] The minimum distance between the second bonding area 32 and the second bonding area 32 can be no less than 3mm.

[0051] Specifically, to ensure a sealing effect, the minimum distance between the second bonding area 32 and the second bonding area 32 is ≥3mm.

[0052] The first tear-off area 33 and the second tear-off area 34 can be symmetrically arranged. The distance between the end of the first tear-off area 33 away from the second adhesive area 32 and the end of the first tear-off area 33 connected to the second adhesive area 32 is not less than 2mm.

[0053] Specifically, the first adhesive area 31 can be rectangular. The first tear-off area 33 and the second tear-off area 34 can both be rectangular.

[0054] Specifically, the seal 3, together with the first sealing piece 12 and the second sealing piece 13 of the outer shell 1, forms a structure that can be opened repeatedly from both sides. The outer shell 1 and the inner frame 2 form a sealed structure for containing consumer goods. The third cutting line 16 and the fourth cutting line 17 form a structure for fixing the opening position. This allows the user to open and seal the packaging box simultaneously from both the front and back sides, conveniently take out the items 4 inside the packaging box without damaging the sealing structure of the packaging box, thereby increasing the storage time of the items 4 inside the box.

[0055] The above-described contents can be implemented individually or in combination in various ways, and all such variations are within the protection scope of this utility model.

[0056] It should be noted that in the description of this application, the terms "upper end," "lower end," and "bottom end," indicating orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise limited, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A package that can be opened repeatedly on both sides, characterized in that: The enclosure includes a seal (3), a shell (1), and an inner frame (2) disposed inside the shell (1) for storing items (4). A first retrieval opening is provided through the inner frame (2). The shell (1) includes a shell (11), a first sealing plate (12), a second sealing plate (13), and a second retrieval opening and a third retrieval opening respectively disposed through the shell (11). The second retrieval opening and the third retrieval opening are both connected to the first retrieval opening. The fixed ends of the first sealing plate (12) and the second sealing plate (13) are both connected to the top surface (113) of the shell (11). The free end of the first sealing plate (12) can rotate around its fixed end. At least a portion of the second retrieval port is sealed; the free end of the second sealing plate (13) is rotatable around its fixed end to seal at least a portion of the third retrieval port; the first part of the seal (3) is connected to the side of the first sealing plate (12) away from the second retrieval port, and the second part of the seal (3) is connected to the side of the second sealing plate (13) away from the third retrieval port; the third part of the seal (3) is detachably connected to the first part of the housing (11) to fix the first sealing plate (12); the fourth part of the seal (3) is detachably connected to the second part of the housing (11) to fix the second sealing plate (13).

2. A package according to claim 1, wherein: Both the outer shell (1) and the inner frame (2) are rectangular.

3. A package according to claim 1 or 2, c h a r a c t e r i z e d in that: The outer shell (1) is a plastic shell (1).

4. A package according to claim 1 or 2, wherein: The inner frame (2) includes a front frame (21) and a back frame (22) arranged opposite to each other. The first retrieval port includes a first opening that penetrates the top of the inner frame (2), a second opening (211) that penetrates the front frame (21), and a third opening (221) that penetrates the back frame (22). The second opening (211) and the third opening (221) are both connected to the first opening. The shell (11) includes a top surface (113), a shell front surface (111) that is close to the front frame (21), and a shell back surface (112) that is close to the back frame (22). The shell front surface (111) and the shell back surface (112) are both connected to the top surface (113). The second retrieval port includes a fourth opening that penetrates the top surface (113) and a fifth opening that penetrates the shell front surface (111) and communicates with the fourth opening. The third retrieval port includes a sixth opening that penetrates the top surface (113) and a seventh opening that penetrates the shell back surface (112) and communicates with the sixth opening.

5. A package according to claim 4, wherein: The first sealing plate (12) and the second sealing plate (13) are integrally formed with the shell (11). The shell (1) also includes a first cutting line (14) and a second cutting line (15) arranged opposite to each other. The first cutting line (14) and the second cutting line (15) are both open lines. The middle part of the first cutting line (14) is located on the front side (21) of the frame, and the two ends extend to the top surface (113). The middle part of the second cutting line (15) is located on the back side (22) of the frame, and the two ends extend to the top surface (113). The second retrieval port The second retrieval port is connected to the first cutting line (14), with a portion of the second retrieval port located on the top surface (113) and another portion located on the front surface (21) of the frame; the third retrieval port is connected to the second cutting line (15), with a portion of the third retrieval port located on the top surface (113) and another portion located on the back surface (22) of the frame; the first sealing plate (12) and the second sealing plate (13) are integrally formed with the housing (11); the first sealing plate (12) matches the second retrieval port, and the second sealing plate (13) matches the third retrieval port.

6. A package according to claim 5, wherein: The axes of the first cutting line (14) and the second cutting line (15) coincide. The seal (3) includes a first adhesive area (31) and a second adhesive area (32) arranged in a ring around the outer periphery of the first adhesive area (31). The axis of the first adhesive area (31) coincides with the axis of the first cutting line. The first adhesive area (31) is fixed to the first sealing sheet (12), the second sealing sheet (13) and the top surface (113) respectively. The second adhesive area (32) is detachably bonded to the front side (21), the back side (22) and the top surface (113) of the frame respectively.

7. A package according to claim 6, wherein: The second adhesive area (32) extends along both ends of its axis and is provided with a first tear-off area (33) near the front side (21) of the frame and a second tear-off area (34) near the back side (22) of the frame. The first tear-off area (33) is separated from the front side (21) of the frame, and the second tear-off area (34) is separated from the back side (22) of the frame.

8. A package according to claim 5, wherein: Both the first cutting line (14) and the second cutting line (15) are U-shaped cutting lines.

9. A package according to claim 6, wherein: The minimum distance between the second bonding area (32) and the second bonding area (32) is not less than 3 mm.

10. A package according to claim 7, wherein: The first tear-off area (33) and the second tear-off area (34) are symmetrically arranged. The distance between the end of the first tear-off area (33) away from the second adhesive area (32) and the end of the first tear-off area (33) connected to the second adhesive area (32) is not less than 2mm.

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