Packaging cover of liquid packaging box and liquid packaging box

Abstract

The invention discloses a packaging cover of a liquid packaging box and the liquid packaging box. The packaging cover comprises a cover cap and a cover body. The cover cap is located on the cover body, the cover body comprises a fixing part and a skirt edge part, the fixing part is fixed to the top face of the liquid packaging box, the skirt edge part is connected with the fixing part, and the skirt edge part wraps at least one folded edge between the top face and the side face of the liquid packaging box; or the skirt edge part extends towards at least one side face of the liquid packaging box, and the area of the skirt edge part does not exceed the area of the fixing part. According to the packaging cover and the liquid packaging box, the liquid packaging box can be effectively prevented from being pressed and deformed, the connecting strength between the packaging cover and the packaging box is further improved, the quality of the packaging box is improved, and therefore the food safety is further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of packaging lids for liquid packaging boxes, and particularly relates to a packaging lid for aseptic paper-based packaging of liquid foods and a liquid food packaging box. Background Art

[0002] The existing packaging lids for liquid packaging boxes are usually integrally arranged on the top surface of the liquid packaging box. Since the liquid packaging box is usually small in volume, the area of the top surface of the packaging box is limited and is often restricted by the position of the top horizontal seal, making the space for installing the packaging lid on the top surface of the packaging box even more limited. Therefore, due to the small connection area between the packaging lid and the packaging box, the fixed connection between the packaging lid and the packaging box is not firm enough; secondly, when the folded edge between the top surface and the side surface of the packaging box is subjected to external force, it is prone to inward depression and deformation, which will cause the bonding position between the packaging lid and the top surface of the packaging box to come off, and even in severe cases, air intake occurs, affecting the quality of the packaging box and even food safety; moreover, when the packaging lid is bonded to the top surface of the packaging box, the adhesive coated on the inner side surface of the lid body is also easy to overflow from the edge of the lid body under pressure, affecting the overall aesthetics of the packaging box. Summary of the Invention

[0003] In view of the above problems, the present invention discloses a packaging lid for a liquid packaging box and a liquid packaging box to overcome or at least partially solve the above problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] On the one hand, the present invention provides a packaging lid for a liquid packaging box, including a cap and a lid body;

[0006] The cap is located on the lid body. The lid body includes a fixing part and a skirt part. The fixing part is fixed on the top surface of the liquid packaging box, the skirt part is connected to the fixing part, and the skirt part wraps at least one folded edge between the top surface and the side surface of the liquid packaging box; or the skirt part extends towards at least one side surface of the liquid packaging box, and the area of the skirt part does not exceed the area of the fixing part.

[0007] Further, a glue storage groove is provided on the inner side surface of the lid body.

[0008] Further, the glue storage groove is provided at the connection between the fixing part and the skirt part; or,

[0009] The glue storage groove is provided on the inner side surface of the skirt part.

[0010] Further, along the direction perpendicular to the connection line between the fixing part and the skirt part, the cross-sectional shape of the glue storage groove is one of a rectangle, a semi-circle or a triangle.

[0011] Further, the glue storage groove is provided continuously or in sections.

[0012] Further, a glue guiding groove is provided on the inner side surface of the fixing part, and the glue guiding groove communicates with the glue storage groove.

[0013] Further, the glue guiding groove is arranged along the edge of the inner side surface of the fixing part.

[0014] Further, the cover body is provided with more than two glue storage grooves, and the glue storage grooves are arranged at intervals in a direction parallel to the connection line between the fixing part and the skirt part; or the glue storage grooves are arranged at intervals in a direction perpendicular to the connection line between the fixing part and the skirt part.

[0015] Further, the length that the skirt part extends towards the side surface of the liquid packaging box is 0.5 mm - 10 mm.

[0016] On the other hand, the present invention provides a liquid packaging box, and the packaging cover of the liquid packaging box described in any one of the above is provided on the liquid packaging box.

[0017] The advantages and beneficial effects of the present invention are as follows:

[0018] In the packaging cover and the liquid packaging box of the liquid packaging box of the present invention, by making the cover body include a fixing part and a skirt part, fixing the fixing part on the top surface of the liquid packaging box, and wrapping at least one fold line between the top surface and the side surface of the liquid packaging box with the skirt part; or the skirt part extends towards at least one side surface of the liquid packaging box, so that the inner side surface at the connection position of the fixing part and the skirt part can be clamped at the fold line position of the liquid packaging box. The inner side surface where the fixing part is connected to the skirt part can increase the connection surface between the packaging cover and the packaging box, thereby improving the stability of the connection between the cover body and the liquid packaging box; moreover, the skirt part can effectively protect the fold line between the top surface and the side surface of the liquid packaging box, improve the compressive resistance of the liquid packaging box during transportation, avoid the compression deformation of the liquid packaging box, further improve the connection strength between the packaging cover and the packaging box, improve the quality of the packaging box, and thus further improve the technical effect of food safety. Description of the Drawings

[0019] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0020] Figure 1 It is a schematic structural diagram of the connection between the packaging cover of the liquid packaging box in the first embodiment and the liquid packaging box;

[0021] Figure 2 It is a schematic structural diagram of the cover body of the packaging cover of the liquid packaging box in the first embodiment;

[0022] Figure 3Schematic structural diagram of the packaging lid of the liquid packaging box in Embodiment 2;

[0023] Figure 4 Schematic structural diagram of the packaging lid of the liquid packaging box in Embodiment 2;

[0024] Figure 5 Schematic structural diagram of the packaging lid of the liquid packaging box in Embodiment 3;

[0025] Figure 6 Schematic structural diagram of the packaging lid of the liquid packaging box in Embodiment 4;

[0026] Figure 7 Schematic structural diagram of the liquid packaging box in Embodiment 5.

[0027] In the figure: 1, fixing part; 2, skirt part; 3, liquid packaging box; 4, cap; 5, lid body; 21, glue storage groove; 22, abrasive particles; 31, top surface of the packaging box; 32, front side of the packaging box; 33, one of the folding edges between the top surface and the side surface of the liquid packaging box; 34, right side of the packaging box. Detailed implementation manners

[0028] To make the objectives, technical solutions and effects of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] The following will describe in detail the technical solutions provided by each embodiment of the present invention with reference to the drawings.

[0030] Embodiment 1

[0031] Combined with Figures 1 to 2 As shown, this embodiment discloses a packaging lid for a liquid packaging box, including a cap 4 and a lid body 5. The liquid packaging box usually enters a sterile sealed chamber after being sterilized by packaging materials, is formed in a strip form by a forming system, and longitudinally sealed into a straight tube form. The liquid food is directly transported into the straight tube through a conveying pipeline after being pasteurized or ultra-high temperature treated (UHT), and then sealed at equally spaced transverse parts and cut into small packages at the transverse sealing parts.

[0032] The formed liquid packaging box includes a top surface, a bottom surface and side surfaces. The side surfaces are the surfaces located between the top surface and the bottom surface and connecting the top surface and the bottom surface. The liquid packaging box shown in the attached drawings is a hexahedron, including a top surface, a bottom surface and four side surfaces. The four side surfaces are respectively a front side surface, a rear side surface, a left side surface and a right side surface. The rear side surface is generally the side surface with a longitudinal seal. The front side surface is opposite to the rear side surface. Between the front side surface and the rear side surface are the opposite left side surface and right side surface.

[0033] The cap 4 is located on the cover body 5. The cap 4 can be fixed on the cover body 5 through a threaded structure or a snap structure. A fixing part 1 is formed at the lower end of the cover body 5. The cover body 5 includes the fixing part 1 and a skirt part 2. The fixing part 1 can be fixedly connected with the top surface 31 of the liquid packaging box through glue. The skirt part 2 is connected with the fixing part 1. The skirt part 2 wraps at least one fold line between the top surface and the side surface of the liquid packaging box, forming an effective protection for the fold line 33 and enhancing the stability of the installation of the cover body and the packaging box. Specifically, during the processing, pressure can be applied to the fixing part 1 and the skirt part 2 to discharge the air between the fixing part and the liquid packaging box and between the skirt part and the liquid packaging box, which can improve the stability of the connection between the fixing part and the liquid packaging box and between the skirt part and the liquid packaging box.

[0034] In this embodiment, the skirt part wraps the fold line between the top surface and the front side surface of the packaging box. Of course, in other embodiments, the skirt part can also be set to wrap the fold line between the top surface and the left side surface of the liquid packaging box; or the skirt part is set to wrap the fold line between the top surface and the right side surface of the liquid packaging box; or the skirt part simultaneously wraps three fold lines between the top surface and the left side surface, the right side surface and the rear side surface of the liquid packaging box.

[0035] In other embodiments, according to the different shapes of the liquid packaging boxes, such as octahedron liquid packaging boxes, the number of skirt parts can be adjusted accordingly to adapt to different types of liquid packaging boxes.

[0036] In summary, in the packaging cover of the liquid packaging box of this embodiment, by setting the fixing part of the cover body and the skirt part of the cover body, and fixing the fixing part on the top surface of the liquid packaging box, the skirt part is connected with the fixing part, and the skirt part wraps at least one fold line between the top surface and the side surface of the liquid packaging box, forming an effective protection for the fold line of the liquid packaging box, and at the same time enhancing the stability of the installation of the cover body and the packaging box. At the same time, through the cover body of the packaging cover, the compressive resistance of the liquid packaging box during transportation can be improved to avoid the compression deformation of the liquid packaging box, so as to achieve the technical effects of improving the packaging quality and food safety.

[0037] In addition, in combination with Figure 2As shown, in this embodiment, a glue storage groove 21 is formed on the inner side surface of the skirt portion 2. The glue storage groove 21 can store glue liquid to increase the glue capacity between the cover body and the liquid packaging box, thereby enhancing the connection stability between the skirt portion and the liquid packaging box, and further achieving the technical effect of improving the connection firmness between the cover body and the liquid packaging box. At the same time, when there is more glue liquid between the fixing portion 1 and the liquid packaging box 3 and between the skirt portion 2 and the liquid packaging box 3, the excess glue liquid will be collected into the glue storage groove under the action of pressure, thus avoiding the situation of glue liquid overflowing from the cover body and affecting the aesthetics of the liquid packaging box.

[0038] Furthermore, as shown in combination with Figure 2 In this embodiment, preferably, the length of the glue storage groove 21 is less than the length of the skirt portion 2, that is, in the direction parallel to the connection line between the fixing portion and the skirt portion. The length of the glue storage groove is less than the length of the skirt portion. In this way, the position on the inner side surface of the skirt portion 2 where the glue storage groove 21 is not provided can be designed as a rough surface, which can improve the friction between the skirt portion and the liquid packaging box, thereby enhancing the connection stability between the skirt portion and the inner side surface of the liquid packaging box.

[0039] Specifically, in this embodiment, the rough surface is a frosted surface, that is, a plurality of abrasive grains 22 are provided on the inner side surface of the skirt portion 2, so that the glue liquid can remain at the positions between adjacent abrasive grains, thereby increasing the amount of glue liquid that can adhere to the skirt portion and further enhancing the connection stability between the skirt portion and the liquid packaging box.

[0040] Of course, in other embodiments, the width of the glue storage groove can also be less than the width of the skirt portion; or the length of the glue storage groove is less than the length of the skirt portion, and at the same time, the width of the glue storage groove is less than the width of the skirt portion. Similarly, it can make the inner side surface of the skirt portion have a position for setting a frosted surface, thereby using the frosted surface to enhance the connection firmness between the skirt portion and the liquid packaging box.

[0041] At the same time, the surface of the fixing portion 1 that contacts the liquid packaging box 3, that is, the inner side surface of the fixing portion 1, is also a frosted surface, which can improve the friction between the fixing portion and the liquid packaging box to enhance the stability of the relative position between the fixing portion and the liquid packaging box. At the same time, the storage capacity of the glue liquid is increased through the grooves of the frosted surface to further achieve the technical effect of improving the connection stability between the fixing portion and the liquid packaging box.

[0042] In other embodiments, only one of the inner side surfaces of the fixing portion and the skirt portion can be set as a frosted surface, and the same technical effect of improving the connection stability between the cover body and the liquid packaging box can be achieved. In this embodiment, by setting the inner side surfaces of both the fixing portion and the skirt portion as frosted surfaces, the area of the frosted surface can be increased to further improve the connection stability between the cover body and the liquid packaging box.

[0043] In addition, in this embodiment, along the direction perpendicular to the connection line between the fixing part 1 and the skirt part 2, the cross-sectional shape of the glue storage groove is rectangular. Of course, in other embodiments, the cross-sectional shape of the glue storage groove can also be semi-circular or triangular. Taking the semi-circular shape as an example, the diameter of the semi-circular glue storage groove is equal to the long side of the rectangle. Based on this, the space of the rectangular glue storage groove is larger than that of the semi-circular glue storage groove, which can improve the storage capacity of the excess glue. And the difference between the area of the skirt part and the area of the semi-circular glue storage groove is greater than the difference between the area of the skirt part and the area of the rectangular glue storage groove, that is, the skirt part with the semi-circular glue storage groove has greater strength and is more stable, and the cross-sectional shape of the glue storage groove can be adjusted as needed.

[0044] In addition, preferably, a glue guiding groove is provided on the inner side surface of the fixing part 1, and the glue guiding groove is communicated with the glue storage groove 21. In this way, the excess glue in the fixing part first enters the glue guiding groove and then enters the glue storage groove through the glue guiding groove, which can play a guiding role for the glue, so as to achieve the technical effect of improving the accuracy of the glue entering the glue storage groove. At the same time, the glue guiding groove can also increase the glue storage capacity between the fixing part and the liquid packaging box, thereby further improving the connection stability between the fixing part and the liquid packaging box.

[0045] Specifically, the glue guiding groove is arranged along the edge of the inner side surface of the fixing part 1. When pressure is applied to the fixing part, the excess glue can move towards the edge of the fixing part, and the excess glue can be directly collected through the glue guiding groove to block the excess glue and avoid the occurrence of glue overflow.

[0046] In other embodiments, more than two glue storage grooves can be provided, such as arranging multiple glue storage grooves at intervals along the direction parallel to the connection line between the fixing part and the skirt part; or arranging multiple glue storage grooves at intervals along the direction perpendicular to the connection line between the fixing part and the skirt part. The glue storage grooves can be set continuously, such as an uninterrupted longer glue storage groove; the glue storage grooves can also be set in sections, such as setting a shorter glue storage groove at intervals in the horizontal direction, so that the skirt part between adjacent glue storage grooves can serve as a reinforcing rib, thereby achieving the technical effect of improving the strength of the skirt part.

[0047] Embodiment 2

[0048] Combined with Figure 3 and Figure 4 As shown, this embodiment discloses another packaging cover of a liquid packaging box. The skirt part is connected to the fixing part, and the skirt part extends towards at least one side surface of the liquid packaging box, and the area of the skirt part does not exceed the area of the fixing part. At this time, the skirt part 2 can be fixedly connected to the front side surface 32 of the liquid packaging box through glue to form a fixed connection between the cover body and the side surface of the liquid packaging box, which can not only protect the folded edge but also improve the connection stability between the cover body and the liquid packaging box.

[0049] In this embodiment, the skirt portion extends towards the front side of the liquid packaging box. Of course, in other embodiments, the skirt portion can also be arranged to extend towards the left side of the liquid packaging box; or the skirt portion extends towards the right side of the top surface of the liquid packaging box; or the skirt portion extends towards the left side, right side and rear side of the liquid packaging box simultaneously.

[0050] In other embodiments, according to the different shapes of the liquid packaging box, such as an octahedral liquid packaging box, the number of skirt portions can be adjusted accordingly to adapt to different types of liquid packaging boxes.

[0051] In summary, in the packaging lid of the liquid packaging box of this embodiment, by providing the fixing portion of the lid body and the skirt portion of the lid body, fixing the fixing portion on the top surface of the liquid packaging box, connecting the skirt portion to the fixing portion, and the skirt portion extending towards at least one side of the liquid packaging box, the inner side surface at the connection position between the fixing portion and the skirt portion can be clamped at the folded edge position of the liquid packaging box. The inner side surface where the fixing portion is connected to the skirt portion can increase the connection surface between the packaging lid and the liquid packaging box, and increase the coating amount of the adhesive, thereby enhancing the stability of the connection between the lid body and the liquid packaging box, improving the compressive resistance of the liquid packaging box during transportation, avoiding the compression deformation of the liquid packaging box, and thus achieving the technical effects of improving the packaging quality and food safety.

[0052] Specifically, as shown in Figure 3 In this embodiment, the angle α between the fixing portion 1 and the skirt portion 2 is not equal to 0° and not equal to 180°, ensuring that there is a turning position between the fixing portion and the skirt portion, and being clamped at the folded edge position of the liquid packaging box through the turning position to enhance the stability of the connection between the lid body of the liquid packaging box and the liquid packaging box.

[0053] Among them, the specific angular value of α can be equal to or close to the included angle between the top surface of the liquid packaging box and the side surface of the liquid packaging box, so that the fixing portion can fit with the top surface of the liquid packaging box, and the skirt portion can fit with the side surface of the liquid packaging box, thereby enhancing the stability of the connection between the fixing portion and the liquid packaging box and between the skirt portion and the liquid packaging box.

[0054] Furthermore, as shown in Figure 3As shown, in this embodiment, the length of the skirt portion 2 extending towards the side of the liquid packaging box 3 is 0.5 mm - 10 mm, preferably 3 mm. In this way, the connection stability between the cover body and the liquid packaging box is improved through the skirt portion, and the obstruction of the side space of the liquid packaging box caused by the setting of the skirt portion is reduced, so as to ensure that the side of the liquid packaging box can meet the design space of the graphics and texts, and has sufficient space to display product information. Herein, the inner side surface in this embodiment refers to the surface that can contact the liquid packaging box. Of course, in other embodiments, the length of the skirt portion 2 extending towards the side of the liquid packaging box 3 can be adjusted according to the different side spaces of the liquid packaging box.

[0055] In this embodiment, the glue storage groove 21 is located on the inner side surface at the connection position of the fixing portion 1 and the skirt portion 2, so that the glue storage groove 21 can be located on both the fixing portion 1 and the skirt portion 2 at the same time, thereby increasing the glue capacity between the fixing portion and the liquid packaging box and between the skirt portion and the liquid packaging box, and further enhancing the connection stability between the fixing portion and the liquid packaging box and between the skirt portion and the liquid packaging box, so as to achieve the technical effect of enhancing the connection firmness between the cover body and the liquid packaging box. When there is more glue between the fixing portion 1 and the liquid packaging box 3 and between the skirt portion 2 and the liquid packaging box 3, the excess glue will be collected in the glue storage groove under the action of pressure, thus avoiding the situation that the glue overflows from the cover body and affecting the aesthetics of the liquid packaging box.

[0056] Preferably, in this embodiment, the length of the glue storage groove is equal to or close to the length of the skirt portion, which can increase the space occupied by the glue storage groove on the fixing portion and the skirt portion, so as to increase the storage capacity of the glue in the glue storage groove, and thus achieve the effect of improving the connection stability between the fixing portion and the liquid packaging box and between the skirt portion and the liquid packaging box.

[0057] Specifically, in this embodiment, the rough surface is a frosted surface, that is, a plurality of abrasive grains 22 are provided on the inner side surface of the skirt portion 2, so that the glue can remain at the positions between adjacent abrasive grains, thereby increasing the amount of glue that can adhere to the skirt portion, and further enhancing the connection stability between the skirt portion and the liquid packaging box.

[0058] Of course, in other embodiments, the length of the glue storage groove can be less than the length of the skirt portion, or the width of the glue storage groove can be less than the width of the skirt portion, which can enable the inner side surface of the skirt portion to have a position for setting the frosted surface, so as to utilize the frosted surface to enhance the connection firmness between the skirt portion and the liquid packaging box.

[0059] Meanwhile, the surface of the fixing part 1 that contacts the liquid packaging box 3, i.e., the inner side surface of the fixing part 1, is also a frosted surface, which can improve the friction between the fixing part and the liquid packaging box, so as to enhance the stability of the relative position between the fixing part and the liquid packaging box. At the same time, the groove of the frosted surface is used to increase the storage capacity of the glue, so as to further achieve the technical effect of improving the connection stability between the fixing part and the liquid packaging box.

[0060] In other embodiments, only one of the inner side surfaces of the fixing part and the skirt part can be set as a frosted surface, and the same technical effect of improving the connection stability between the cover body and the liquid packaging box can be achieved. In this embodiment, by setting the inner side surfaces of the fixing part and the skirt part as frosted surfaces at the same time, the area of the frosted surface can be increased, so as to further improve the connection stability between the cover body and the liquid packaging box.

[0061] In addition, in this embodiment, along the direction perpendicular to the connection line between the fixing part 1 and the skirt part 2, the cross-sectional shape of the glue storage groove is a rectangle. Of course, in other embodiments, the cross-sectional shape of the glue storage groove can also be a semicircle or a triangle. Taking the semicircle as an example, the diameter of the semicircular glue storage groove is equal to the long side of the rectangle. Based on this, the space of the rectangular glue storage groove is larger than that of the semicircular glue storage groove, which can improve the storage capacity of the excess glue, and the difference between the area of the skirt part and the area of the semicircular glue storage groove is greater than the difference between the area of the skirt part and the area of the rectangular glue storage groove, that is, the skirt part with a semicircular glue storage groove has greater strength and stability, and the cross-sectional shape of the glue storage groove can be adjusted according to needs.

[0062] In addition, preferably, a glue guiding groove is provided on the inner side surface of the fixing part 1, and the glue guiding groove is communicated with the glue storage groove 21. In this way, the excess glue in the fixing part first enters the glue guiding groove and then enters the glue storage groove through the glue guiding groove, which can play a guiding role in the glue, so as to achieve the technical effect of improving the accuracy of the glue entering the glue storage groove. At the same time, the glue guiding groove can also increase the glue storage capacity between the fixing part and the liquid packaging box, so as to further improve the connection stability between the fixing part and the liquid packaging box.

[0063] Specifically, the glue guiding groove is arranged along the edge of the inner side surface of the fixing part 1. When pressure is applied to the fixing part, the excess glue can move towards the edge of the fixing part, and the excess glue can be directly collected through the glue guiding groove to block the excess glue and avoid the occurrence of glue overflow.

[0064] In other embodiments, more than two glue storage grooves may be provided, for example, a plurality of glue storage grooves are provided at intervals in a direction parallel to the connection line between the fixing part and the skirt part; or a plurality of glue storage grooves are provided at intervals in a direction perpendicular to the connection line between the fixing part and the skirt part. The glue storage grooves may be provided continuously, such as a relatively long and uninterrupted glue storage groove; the glue storage grooves may also be provided in sections, such as providing a relatively short glue storage groove at intervals in the horizontal direction, so that the skirt part between adjacent glue storage grooves can serve as a reinforcing rib, thereby achieving the technical effect of improving the strength of the skirt part.

[0065] In other embodiments, the length of the glue storage groove may not be equal to the length of the skirt part, and the technical effect of improving the connection stability between the fixing part and the liquid packaging box and between the skirt part and the liquid packaging box can still be achieved. In this embodiment, by penetrating the glue storage groove through the skirt part, the simplicity of demolding the glue storage groove can be improved, thereby achieving the technical effect of improving the simplicity of processing the glue storage groove.

[0066] Embodiment III

[0067] Combined with Figure 5 As shown, this embodiment discloses another packaging lid of a liquid packaging box. The skirt part is connected to the fixing part, and the skirt part extends towards at least one side surface of the liquid packaging box. The area of the skirt part does not exceed the area of the fixing part. At this time, the skirt part 2 can be fixedly connected to the front side surface 32 of the liquid packaging box through the glue, so as to form a fixed connection between the lid body and the side surface of the liquid packaging box, which can not only protect the folded edge, but also improve the connection stability between the lid body and the liquid packaging box.

[0068] Different from Embodiment II, in this embodiment, the skirt part extends towards two opposite side surfaces of the liquid packaging box. Preferably, in this embodiment, the skirt part extends towards the opposite left side surface and right side surface of the liquid packaging box.

[0069] Embodiment IV

[0070] Combined with Figure 6 As shown, this embodiment discloses another packaging lid of a liquid packaging box. Different from the foregoing embodiments, in the packaging lid of the liquid packaging box in this embodiment, the glue storage grooves 21 are located on two end faces of the skirt part 2 along its own length direction and communicate with the liquid packaging box 3. The effect of collecting the excess glue coated on the fixing part and the skirt part can still be achieved, and the connection firmness between the skirt part and the liquid packaging box can be improved, and further the effect of improving the connection stability between the lid body of the liquid packaging box and the liquid packaging box can be achieved.

[0071] Embodiment V

[0072] This embodiment discloses a liquid packaging box, and a packaging lid of any one of the foregoing embodiments is provided on the liquid packaging box. Among them, combined with Figure 7As shown in the figure, the liquid packaging box 3 in this embodiment has six faces, namely the top face 31 of the packaging box, the bottom face parallel to the top face of the packaging box, and the four side faces of the packaging box, including the front side face 32 of the packaging box, the rear side face opposite to the front side face of the packaging box (not shown), the right side face 34 of the packaging box, and the left side face parallel to the right side face of the packaging box (not shown).

[0073] In this embodiment, the cover body of the packaging lid of the liquid packaging box is provided with a skirt portion. Then, the fixing portion and the skirt portion can be respectively arranged on any two adjacent faces, and the connection position between the fixing portion and the skirt portion can be arranged at the folding position of the liquid packaging box, so as to achieve the technical effect of improving the shape stability of the liquid packaging box, and at the same time, the connection stability between the cover body and the liquid packaging box can be improved.

[0074] Of course, in other embodiments, according to the different designs of the liquid packaging box, the number of faces of the liquid packaging box can be adjusted.

[0075] Embodiment Six

[0076] This embodiment discloses another liquid packaging box. The difference compared with Embodiment Five is that the cover body in this embodiment has two skirt portions. In this case, the fixing portion can be located on the top face of the packaging box. Preferably, the two skirt portions can be respectively located on the left side face of the packaging box and the right side face of the packaging box; or the two skirt portions can also be respectively located on the front side face of the packaging box and the left side face of the packaging box; or the two skirt portions can also be respectively located on the front side face of the packaging box and the right side face of the packaging box. By increasing the connection positions between the fixing portion and the skirt portions, the technical effect of further improving the connection stability between the packaging lid and the liquid packaging box can be achieved, and the compressive resistance of the liquid packaging box is enhanced to improve the shape stability of the liquid packaging box.

[0077] Embodiment Seven

[0078] This embodiment discloses yet another liquid packaging box. The difference compared with Embodiment Five is that the cover body in this embodiment has three skirt portions. In this case, the fixing portion can be located on the top face of the packaging box. Preferably, the three skirt portions can be respectively located on the front side face 32 of the packaging box, the left side face of the packaging box, and the right side face 34 of the packaging box; or the three skirt portions are respectively located on the rear side face of the packaging box, the left side face of the packaging box, and the right side face of the packaging box. This embodiment can further improve the connection stability between the packaging lid and the liquid packaging box, and enhance the compressive resistance of the liquid packaging box to achieve the technical effect of improving the shape stability of the liquid packaging box.

[0079] The above are only specific embodiments of the present invention. Under the above teachings of the present invention, those skilled in the art can make other improvements or deformations based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present invention, and the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A packaging lid for a liquid packaging box, characterized in that: It includes a cap and a cover body; The cap is located on the cover body. The cover body includes a fixing part and a skirt part. The fixing part is fixed on the top surface of the liquid packaging box. The skirt part is connected to the fixing part. The skirt part wraps at least one fold line between the top surface and the side surface of the liquid packaging box; or the skirt part extends towards at least one side surface of the liquid packaging box, and the area of the skirt part does not exceed the area of the fixing part.

2. The packaging lid of the liquid packaging box according to claim 1, characterized in that: A glue storage groove is provided on the inner side surface of the cover body.

3. The packaging lid of the liquid packaging box according to claim 2, characterized in that: The glue storage groove is arranged at the connection of the fixing part and the skirt part; or, The glue storage groove is arranged on the inner side surface of the skirt part.

4. The packaging lid of the liquid packaging box according to claim 2, characterized in that: Along the direction perpendicular to the connection line of the fixing part and the skirt part, the cross-sectional shape of the glue storage groove is one of a rectangle, a semi-circle or a triangle.

5. The packaging lid of the liquid packaging box according to claim 2, characterized in that: The glue storage groove is arranged continuously or in sections.

6. The packaging lid of the liquid packaging box according to claim 2, characterized in that: A glue guiding groove is provided on the inner side surface of the fixing part, and the glue guiding groove is communicated with the glue storage groove.

7. The packaging lid of the liquid packaging box according to claim 6, characterized in that: The glue guiding groove is arranged along the edge of the inner side surface of the fixing part.

8. The packaging lid of the liquid packaging box according to any one of claims 2-7, characterized in that: Two or more of the glue storage grooves are provided on the cover body; the glue storage grooves are arranged at intervals in the direction parallel to the connection line of the fixing part and the skirt part; or the glue storage grooves are arranged at intervals in the direction perpendicular to the connection line of the fixing part and the skirt part.

9. The packaging lid of the liquid packaging box according to any one of claims 1-7, characterized in that: The length that the skirt part extends towards the side surface of the liquid packaging box is 0.5 mm - 10 mm.

10. A liquid packaging box, characterized in that: The liquid packaging box is provided with the packaging cover of the liquid packaging box according to any one of claims 1 - 9.

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