A paper-plastic packaging box

Abstract

This utility model discloses a paper-plastic packaging box, including a main shell, a first end flange, a secondary shell, and a second end flange. The main shell has two first end walls and two first side walls. The first end walls have multiple outwardly protruding first protrusions, and a first groove is formed between two adjacent first protrusions. The first end walls are connected to the first end flanges, which are rotatable relative to the main shell. The first end flanges have first end protrusions for embedding into the first grooves. The top edges of the two first side walls are respectively connected to the secondary shells, which are rotatable relative to the main shell. The secondary shells have two opposing second end walls, each with multiple outwardly protruding second protrusions, and a second groove is formed between two adjacent second protrusions. The top edges of the second end walls are connected to the second end flanges, which are rotatable relative to the secondary shells. The second end flanges have second end protrusions for embedding into the second grooves. This paper-plastic packaging box is easy to operate and provides good protection.

Description

Technical Field

[0001] This utility model relates to the field of product packaging technology, and in particular to a paper-plastic packaging box. Background Technology

[0002] With the advancement of the plastic ban, EPS cushioning packaging has been gradually replaced by paper-plastic packaging. In order to give paper-plastic packaging a certain shockproof and cushioning effect, existing technologies will choose to set concave and convex structures on paper-plastic packaging.

[0003] Currently, paper-plastic packaging typically consists of two independent structural components. When packaging products (such as dumbbells), these two components are fitted onto the product from both sides. This type of paper-plastic packaging with two independent structural components has the following problems: 1. The preparation work for paper-plastic packaging is relatively large. During the packaging process, it is also necessary to distinguish between the two structural components and accurately align them with the product to ensure that the two structural components can be installed in their correct positions. This operation is quite cumbersome and easily leads to wasted time; 2. Paper-plastic packaging has weak resistance to lateral impacts and is prone to deformation when subjected to lateral impacts, providing unsatisfactory protection for the product inside the packaging. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a paper-plastic packaging box that is easy to operate and has a good protective effect.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a paper-plastic packaging box, comprising:

[0006] The main housing has two opposing first end walls and two opposing first side walls. The first end walls have a plurality of outwardly protruding first protrusions, and a first groove is formed between two adjacent first protrusions.

[0007] The first end flange is connected to the top edge of the first end wall. The first end flange is rotatable relative to the main housing. The first end flange has a first end protrusion for embedding into the first slot.

[0008] The sub-shell has two first sidewalls connected to its top edges respectively. The sub-shell is rotatable relative to the main shell. The sub-shell has two opposing second end walls. The second end walls have a plurality of outwardly protruding second protrusions. A second groove is formed between two adjacent second protrusions.

[0009] The second end flange is connected to the top edge of the second end wall. The second end flange is rotatable relative to the sub-housing. The second end flange has a second end protrusion for embedding into the second slot.

[0010] When the paper-plastic packaging box is in the storage state, the first end protrusion is embedded in the first slot, the second end protrusion is embedded in the second slot, the sub-shell is located above the main shell, and the sub-shell and the main shell together form a storage cavity.

[0011] In one embodiment, a toothed line is provided at the connection between the main housing and the first end flange, a toothed line is provided at the connection between the main housing and the sub-housing, and a toothed line is provided at the connection between the sub-housing and the second end flange.

[0012] In one embodiment, the sub-housing has an abutment protrusion for extending into the receiving cavity.

[0013] In one embodiment, the sub-housing housing is provided with a positioning protrusion, which is located at the middle of the sub-housing housing, and the positioning protrusion is provided with a positioning groove.

[0014] In one embodiment, the sub-shell is provided with a receiving groove, which is located on the outer surface of the paper-plastic packaging box in the storage state, and the receiving groove is provided corresponding to the positioning protrusion.

[0015] In one embodiment, when the paper-plastic packaging box is in a stored state, the receiving slots on the two sub-shells are connected to form a receiving cavity.

[0016] In one embodiment, the sub-housing also has two opposing second sidewalls, one of which has its top edge connected to the top edge of the first sidewall, and the other of which has a locking edge for extending into the receiving cavity.

[0017] In one embodiment, the storage cavity includes a first chamber and a second chamber. When the paper-plastic packaging box is in the storage state, one of the sub-shells and the main shell together form the first chamber, and the other sub-shell and the main shell together form the second chamber.

[0018] In one embodiment, the inner surface of the receiving cavity is provided with a water-based varnish coating.

[0019] In one embodiment, a tray is also included, which is placed within the main housing.

[0020] The beneficial effects of this utility model are as follows: This paper-plastic packaging box has a simple structure and adopts an integrated design, which helps to reduce the amount of material preparation work. When packaging the product to be packaged, after placing the product into the main shell, the two sub-shells are rotated to the top of the main shell to complete the packaging work. Precise alignment is not required, which greatly facilitates the operation of assembly personnel, saves labor time, and improves packaging efficiency. The first end wall of the main shell is rotatably connected to a first end fold, and the first end wall is provided with a first groove. The first end fold is provided with a first end protrusion that is embedded in the first groove. The cooperation between the first end wall and the first end fold effectively improves the cushioning effect of the main shell. The second end wall of the sub-shell is rotatably connected to a second end fold, and the second end wall is provided with a second groove. The second end fold is provided with a second end protrusion that is embedded in the second groove. The cooperation between the second end wall and the second end fold effectively improves the cushioning effect of the sub-shell. Thus, the paper-plastic packaging box in the storage state can withstand the impact force from the end, reduce the risk of deformation of the paper-plastic packaging box, and improve the protective effect of the paper-plastic packaging box on the packaged item. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the paper-plastic packaging box in the unfolded state according to Example 1. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the paper-plastic packaging box in the unfolded state according to Example 1. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the paper-plastic packaging box in the semi-folded state of Example 1;

[0025] Figure 4 This is a structural diagram of the paper-plastic packaging box in the stored state according to Example 1;

[0026] Figure 5 An exploded view of a packaging apparatus having a paper-plastic packaging box as described in Embodiment 1;

[0027] Figure 6 This is a schematic diagram of the stacking of paper-plastic packaging boxes in Example 1.

[0028] Explanation of icon numbers:

[0029] 1. Main housing; 11. First end wall; 111. First protrusion; 112. First groove; 12. First side wall; 13. First bottom wall;

[0030] 2. Fold the first end; 21. The convex part of the first end;

[0031] 3. Sub-shell; 31. Second end wall; 311. Second protrusion; 312. Second groove; 32. Second side wall; 321. Locking edge; 33. Second bottom wall; 34. Abutting protrusion; 35. Positioning protrusion; 351. Positioning groove; 36. Receiving groove;

[0032] 4. Second end fold; 41. Second end protrusion;

[0033] 5. Buffering uneven parts;

[0034] 6. Toothed line;

[0035] 7. Pallet;

[0036] 8. Cardboard boxes;

[0037] 9. Paper cover plate;

[0038] 10. Dumbbells. Detailed Implementation

[0039] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0043] Furthermore, if the meaning of "and / or" appears throughout the text, it refers to three parallel solutions. For example, "and / or" includes solution 1, solution 2, and solution 3, which simultaneously satisfy the above conditions. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] Example 1

[0046] Please refer to Figures 1 to 6 The first embodiment of this utility model is as follows: Please refer to... Figures 1 to 4 A paper-plastic packaging box includes a main shell 1, a first end flange 2, a secondary shell 3, and a second end flange 4. The main shell 1, first end flange 2, secondary shell 3, and second end flange 4 are integrally formed using a paper-plastic manufacturing process. The main shell 1 has two opposing first end walls 11 and two opposing first side walls 12. Each first end wall 11 has multiple outwardly protruding first protrusions 111, with a first groove 112 formed between adjacent first protrusions 111. The top edge of the first end wall 11 is connected to the first end flange 2, which is rotatable relative to the main shell 1. The first end flange 2 has a first end protrusion 21 for embedding into the first groove 112. The top edges of the two first side walls 12 are respectively connected to the secondary shell. 3. The sub-shell 3 is rotatable relative to the main shell 1. The sub-shell 3 has two opposing second end walls 31. The second end walls 31 have a plurality of outwardly protruding second protrusions 311. A second groove 312 is formed between two adjacent second protrusions 311. The top edge of the second end wall 31 is connected to a second end flange 4. The second end flange 4 is rotatable relative to the sub-shell 3. The second end flange 4 has a second end protrusion 41 for embedding into the second groove 312. When the paper-plastic packaging box is in the storage state, the first end protrusion 21 is embedded into the first groove 112, and the second end protrusion 41 is embedded into the second groove 312. The sub-shell 3 is located above the main shell 1. The sub-shell 3 and the main shell 1 together form a storage cavity.

[0047] The main housing 1 also includes a first bottom wall 13. When viewed from above, the first bottom wall 13 is optionally rectangular. Specifically, the four edges of the first bottom wall 13 connect two first end walls 11 and two first side walls 12, respectively. Adjacent first side walls 12 are connected to the first end walls 11. In other words, the main housing 1 can be roughly considered as a hollow box with an opening at the top. Optionally, the secondary housing 3 also includes a second bottom wall 33 and two opposing second side walls 32. The four edges of the second bottom wall 33 are... Two second end walls 31 are connected to two second side walls 32. Adjacent second side walls 32 are connected to second end walls 31. The top edge of one second side wall 32 is connected to the top edge of the first side wall 12. Preferably, the top edge of the other second side wall 32 has a locking edge 321 for extending into the storage cavity. When the paper-plastic packaging box is opened, the locking edges 321 on the two sub-shells 3 will collide, thereby reducing the probability of the sub-shells 3 being accidentally opened, which helps to ensure the packaging effect and enhance the user experience. Specifically, when one sub-shell 3 is rotated to open, the locking edge 321 on that sub-shell 3 will collide with the locking edge 321 on the other sub-shell 3. The force required to rotate the aforementioned sub-shell 3 needs to reach a certain level to overcome the deformation of the locking edge 321 and thus fully open the aforementioned sub-shell 3.

[0048] It is easy to understand that, in order to improve the cushioning capacity of the paper-plastic packaging box, the main shell 1 and the sub-shell 3 are provided with a plurality of cushioning protrusions and recesses 5. The first protrusion 111 can be regarded as a kind of cushioning protrusion and recess 5 on the main shell 1, and the second protrusion 311 can be regarded as a kind of cushioning protrusion and recess 5 on the sub-shell 3. Due to the presence of the cushioning protrusions and recesses 5, the paper-plastic packaging box does not look very regular overall, but when the paper-plastic packaging box is in the storage state, the paper-plastic packaging box is roughly rectangular.

[0049] The connection between the main housing 1 and the first end flange 2 is provided with a toothed line 6, such as Figure 1 As shown by the dotted lines, a toothed line 6 is provided at the connection between the main shell 1 and the sub-shell 3, and at the connection between the sub-shell 3 and the second end flange 4. Due to the presence of the toothed line 6, the main shell 1, the sub-shell 3, and the first end flange 2 can be rotatably connected, and the sub-shell 3 and the second end flange 4 can be rotatably connected. The toothed line 6 is easy to process, has low implementation cost, and is beneficial for controlling the manufacturing cost of paper-plastic packaging boxes.

[0050] In one or more embodiments, when the paper-plastic packaging box is in the unfolded state, the top surface of the main shell 1, the top surface of the secondary shell 3, one side of the first end fold 2, and one side of the second end fold 4 are coplanar. That is, when not in use, the paper-plastic packaging box can almost be flattened, allowing multiple paper-plastic packaging boxes to be stacked (e.g., ...). Figure 5 (As shown) for storage and transportation, which helps reduce storage and transportation costs.

[0051] To better secure the packaged product and reduce the shaking of the packaged product in the storage cavity, in this embodiment, the sub-shell 3 has an abutting protrusion 34 for extending into the storage cavity, the abutting protrusion 34 being used to abut the packaged product.

[0052] Taking dumbbell 10 as an example, in order to better fix dumbbell 10, in some embodiments, the sub-shell 3 is provided with a positioning protrusion 35, the positioning protrusion 35 is provided corresponding to the middle of the sub-shell 3, and the positioning protrusion 35 is provided with a positioning groove 351, which is used to position the grip bar of dumbbell 10.

[0053] In one or more embodiments, the sub-shell 3 is provided with a receiving groove 36, which is located on the outer surface of the paper-plastic packaging box in its stored state. The receiving groove 36 is provided corresponding to the positioning protrusion 35, and can be used to store accessories or other objects of the packaged product, such as the instruction manual of the packaged product. Because the receiving groove 36 is provided corresponding to the positioning protrusion 35, the volume of the receiving groove 36 can be set to be relatively large.

[0054] Preferably, when the paper-plastic packaging box is in the storage state, the receiving grooves 36 on the two sub-shells 3 are connected to form a receiving cavity. The receiving cavity formed by the receiving grooves 36 on the two sub-shells 3 has a large area and volume, which can better store items of different sizes.

[0055] The storage cavity includes a first chamber and a second chamber. When the paper-plastic packaging box is in the storage state, one of the sub-shells 3 and the main shell 1 together form the first chamber, and the other sub-shell 3 and the main shell 1 together form the second chamber. When the packaged product is a dumbbell 10, the first chamber and the second chamber each store one dumbbell 10.

[0056] Due to the limitations of paper-plastic manufacturing processes, the fibers between the paper and plastic components lack adhesive bonding. Ordinary paper-plastic packaging is prone to rubbing against the packaged product during transportation, resulting in lint and shedding. Therefore, in this embodiment, the inner surface of the storage cavity is coated with a water-based varnish. The water-based varnish treatment on the contact surface between the paper-plastic packaging box and the packaged product ensures good adhesion between the paper and plastic fibers, reducing lint and enhancing the user's unpacking experience.

[0057] Optionally, a tray 7 is also included, which is placed inside the main housing 1, and the packaged products are placed on the tray 7.

[0058] like Figure 6 As shown, when sealing the packaging device with this paper-plastic packaging box, first place the tray 7 inside the main housing 1, then place the packaged product (including but not limited to dumbbell 10) into the tray 7, then close the paper-plastic packaging box to change it into a storage state, then place the paper-plastic packaging box in the storage state into the carton 8, then place the accessories or other foreign objects into the receiving cavity, then place the paper cover 9 on the top surface of the paper-plastic packaging box, and finally close the carton 8.

[0059] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A paper-plastic packaging box, characterized by: include The main housing has two opposing first end walls and two opposing first side walls. The first end walls have a plurality of outwardly protruding first protrusions, and a first groove is formed between two adjacent first protrusions. The first end flange is connected to the top edge of the first end wall. The first end flange is rotatable relative to the main housing. The first end flange has a first end protrusion for embedding into the first slot. The sub-shell has two first sidewalls connected to its top edges respectively. The sub-shell is rotatable relative to the main shell. The sub-shell has two opposing second end walls. The second end walls have a plurality of outwardly protruding second protrusions. A second groove is formed between two adjacent second protrusions. The second end flange is connected to the top edge of the second end wall. The second end flange is rotatable relative to the sub-housing. The second end flange has a second end protrusion for embedding into the second slot. When the paper-plastic packaging box is in the storage state, the first end protrusion is embedded in the first slot, the second end protrusion is embedded in the second slot, the sub-shell is located above the main shell, and the sub-shell and the main shell together form a storage cavity.

2. The paper-plastic packaging box according to claim 1, characterized in that: The connection between the main housing and the first end flange is provided with a toothed cutter line, the connection between the main housing and the sub-housing is provided with a toothed cutter line, and the connection between the sub-housing and the second end flange is provided with a toothed cutter line.

3. The paper-plastic packaging box according to claim 1, characterized in that: The sub-shell has an abutting protrusion for extending into the receiving cavity.

4. The paper-plastic packaging box according to claim 1, characterized in that: The sub-shell is provided with a positioning protrusion, which is located at the middle of the sub-shell, and a positioning groove is provided on the positioning protrusion.

5. The paper-plastic packaging box according to claim 4, characterized in that: The sub-shell is provided with a receiving groove, which is located on the outer surface of the paper-plastic packaging box in the storage state, and the receiving groove is provided corresponding to the positioning protrusion.

6. The paper-plastic packaging box according to claim 5, characterized in that: When the paper-plastic packaging box is in the storage state, the receiving slots on the two sub-shells are connected to form a receiving cavity.

7. The paper-plastic packaging box according to claim 1, characterized in that: The sub-shell also has two opposing second sidewalls, one of which has its top edge connected to the top edge of the first sidewall, and the other of which has a locking edge for extending into the receiving cavity.

8. The paper-plastic packaging box according to claim 1, characterized in that: The storage cavity includes a first chamber and a second chamber. When the paper-plastic packaging box is in the storage state, one of the sub-shells and the main shell together form the first chamber, and the other sub-shell and the main shell together form the second chamber.

9. The paper-plastic packaging box according to claim 1, characterized in that: The inner surface of the storage cavity is coated with a water-based varnish.

10. The paper-plastic packaging box according to claim 1, characterized in that: It also includes a tray, which is placed inside the main housing.

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