A collapsible packaging carton

Abstract

The utility model discloses a kind of foldable packing cartons, including paper box body and the paper box box cover for protection effect being engagedly connected at its upper end;The left and right ends of the paper box body are screw-connected with connecting band, and the upper end of connecting band is provided with connecting port, and the inner end surface of connecting port is fixedly connected with connecting piece, and the inside of paper box body is engagedly connected with support frame, wherein left and right two groups of connecting piece are connected in magnetic mode, paper box body includes paper box bottom plate, first side plate, double-sided adhesive tape, second side plate and connecting plate, and the left and right ends of paper box bottom plate are fixedly connected with first side plate;The inside bottom end of the paper box box cover is fixedly connected with spring at equal intervals, and the lower end of spring is fixedly connected with limit plate.The foldable packing carton is convenient to fold and store, and is convenient to carry, and the thing packaged is easily limited, to prevent article from shaking.

Description

Technical Field

[0001] This utility model relates to the field of packaging paper box technology, specifically a foldable packaging paper box. Background Technology

[0002] Packaging boxes are present in all aspects of people's lives. They have almost replaced various packaging forms such as wooden boxes and cloth bags, and are the best choice for people to package various items. Cardboard boxes can be used to transport heavy objects or to store items. At present, there are many styles of packaging boxes on the market, which can meet certain needs.

[0003] For example, utility model patent CN218086543U discloses a packaging cardboard box, including a box body with a cover plate at the top. The box body and the cover plate are rotatably connected by a rotating mechanism, which includes a bracket, a mounting block, and a rotating shaft. The mounting block can rotate around the rotating shaft. This utility model, through its rotating mechanism, ensures that the box body and the cover plate are not integrally formed. Therefore, folding does not damage the structural strength of the box body and the cover plate, allowing the cardboard box to be reused multiple times and improving the practicality of the device.

[0004] Based on existing solutions and actual production and processing, current packaging boxes still have some problems. For example, while the box body and lid are folded using mounting blocks and other parts, the folding is not thorough enough. They take up a lot of space when not in use, and it is inconvenient to carry them as the box needs to be lifted up. Also, if items are placed directly inside the box for packaging, the items can easily move inside the box, leading to damage. Therefore, we propose a foldable packaging box to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a foldable packaging box to solve the problems mentioned in the background art, such as that existing packaging boxes are not easy to fold for storage, are not convenient to carry, and are not easy to restrain the contents of the package, and the items are easy to shake.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a foldable packaging cardboard box, comprising a cardboard box body and a cardboard box lid that is snapped onto its upper end for protection;

[0007] Also includes:

[0008] The left and right ends of the paper box body are screwed with connecting strips, and the upper end of the connecting strips is provided with a connecting port. A connecting piece is fixedly connected to the inner end face of the connecting port. A support frame is snapped into the inside of the paper box body. The left and right sets of connecting pieces are connected by magnetic means.

[0009] Springs are fixedly connected at equal intervals inside the bottom of the cardboard box lid, and a limit plate is fixedly connected to the lower end of the springs.

[0010] Preferably, the main body of the cardboard box includes a cardboard box base plate, a first side plate, double-sided adhesive tape, a second side plate, and a connecting plate. The first side plate is fixedly connected to both the left and right ends of the cardboard box base plate, and double-sided adhesive tape is symmetrically pasted to the upper end of the first side plate. The second side plate is fixedly connected to both the front and rear ends of the cardboard box base plate, and the connecting plate is symmetrically fixedly connected to the second side plate.

[0011] Preferably, the width of the connecting plate is equal to the length of the double-sided adhesive, and the first side plate is connected to the connecting plate by adhesive bonding.

[0012] Preferably, the lower middle end of the connecting strip is provided with a connecting hole, and a connecting post is nested inside the connecting hole, wherein the connecting post is fixedly connected to the carton lid symmetrically on both sides.

[0013] Preferably, a limiting strip is nested within the hollow structure at the outer end of the connecting column, and the front end of the limiting strip is integrally connected to the rear end of the connecting strip.

[0014] Preferably, the lower end of the connecting strip is rotatably connected to a connecting shaft, and the connecting shaft is fixedly connected to the lower outer wall of the connecting strip in a symmetrical manner.

[0015] Preferably, the cross-sectional area of ​​the limiting plate is smaller than the inner cross-sectional area of ​​the support frame, and the limiting plate forms a telescopic structure inside the support frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the foldable packaging box is easy to fold for storage and easy to carry, and at the same time, it is easy to limit the contents of the package and prevent the items from shaking.

[0017] 1. It is equipped with a cardboard box body and a support frame. The support frame is internally connected to the cardboard box body, allowing the support frame to detach from the inside of the cardboard box body;

[0018] The first side panel is connected to the connecting plate by adhesive, which allows the first side panel to be separated from the connecting plate. After scraping off the double-sided tape, both the second side panel and the first side panel can be folded onto the top of the cardboard box base, making it easy to fold and store.

[0019] 2. It is equipped with connecting strips and connecting pieces. The hollow structure at the outer end of the connecting post is nested with a limiting strip, so that when the symmetrically arranged connecting strips are attached to the side wall of the carton lid, the position of the connecting strips is limited by the connecting post and the limiting strip.

[0020] The left and right sets of connecting pieces are connected magnetically, so that when the left and right sets of connecting ports are connected, the left and right sets of connecting pieces are magnetically connected together, which limits the position of the connecting ports and makes them easy to carry.

[0021] 3. It is equipped with a spring and a limiting plate. The structural design of the limiting plate inside the support frame allows the spring to drive the limiting plate to descend inside the support frame, so that the lower end of the limiting plate abuts against the upper end of the item, thereby easily limiting the packaged item and preventing it from shaking. Attached Figure Description

[0022] Figure 1 This is a frontal cross-sectional view of the present invention.

[0023] Figure 2 This is a schematic diagram of the main structure of the paper box of this utility model;

[0024] Figure 3 This is a schematic diagram of the left side view of the connection between the limiting strip and the connecting strip of this utility model;

[0025] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of the connection between the main body of the cardboard box and the support frame of this utility model;

[0026] Figure 5 This is a schematic diagram of the overall structure of the connection between the spring and the limiting plate of this utility model;

[0027] Figure 6 This is a schematic diagram of the overall structure of the connection between the connecting strip and the connecting hole of this utility model.

[0028] In the diagram: 1. Main body of the cardboard box; 101. Bottom plate of the cardboard box; 102. First side plate; 103. Double-sided adhesive; 104. Second side plate; 105. Connecting plate; 2. Support frame; 3. Cardboard box lid; 4. Connecting strap; 5. Connecting piece; 6. Connecting port; 7. Connecting hole; 8. Connecting post; 9. Limiting strip; 10. Connecting strip; 11. Connecting shaft; 12. Spring; 13. Limiting plate. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6This utility model provides a technical solution: a foldable packaging cardboard box, including a cardboard box body 1, a support frame 2, a cardboard box lid 3, a connecting strap 4, a connecting piece 5, a connecting port 6, a connecting hole 7, a connecting post 8, a limiting strip 9, a connecting strip 10, a connecting shaft 11, a spring 12, and a limiting plate 13, the cardboard box body 1 and the cardboard box lid 3 which is snapped onto its upper end for protection;

[0031] Also includes:

[0032] Both ends of the cardboard box body 1 are screwed with connecting strips 4, and the upper end of the connecting strips 4 is provided with a connecting port 6. The inner end face of the connecting port 6 is fixedly connected with a connecting piece 5. The cardboard box body 1 is also internally connected with a support frame 2. The two sets of connecting pieces 5 on the left and right sides are connected by magnetic means.

[0033] Springs 12 are fixedly connected at equal intervals at the bottom of the inner side of the cardboard box lid 3, and a limit plate 13 is fixedly connected to the lower end of the springs 12.

[0034] Example: Existing methods fold the box body and lid using mounting blocks and other parts, but the folding is not thorough enough and takes up considerable space when not in use. Therefore, this example uses the following technical solution, such as... Figure 1 and Figure 2 Since the main body 1 of the cardboard box includes a cardboard box base plate 101, a first side plate 102, double-sided adhesive 103, a second side plate 104 and a connecting plate 105, the upper end of the first side plate 102 is symmetrically connected with double-sided adhesive 103, the width of the connecting plate 105 is equal to the length of the double-sided adhesive 103, and the connection method between the first side plate 102 and the connecting plate 105 is adhesive connection;

[0035] Therefore, the outer surface of the connecting plate 105 is fixed with a protective film. When folding, the first side plates 102, which are symmetrically arranged on the left and right, are pulled outward to separate the double-sided adhesive 103 from the outer wall of the connecting plate 105. The double-sided adhesive 103 remaining on the outer wall of the connecting plate 105 is scraped off, so that the first side plates 102, which are symmetrically arranged on the left and right, are folded onto the top of the bottom plate 101 of the cardboard box. The second side plates 104, which are symmetrically arranged front and back, can also be folded onto the bottom plate 101 of the cardboard box. The internal cross-sectional area of ​​the cardboard box lid 3 is larger than the cross-sectional area of ​​the cardboard box body 1, so that the folded cardboard box body 1 can be stored inside the cardboard box lid 3.

[0036] When in use, the two sets of first side panels 102 on the left and right and the second side panels 104 symmetrically arranged front and back are in a vertical state. Double-sided tape 103 is attached to the first side panels 102 respectively, and the connecting plate 105 is attached to the double-sided tape 103 at the corresponding position to limit the position of the second side panels 104 and the first side panels 102. The support frame 2 is snapped into the inside of the cardboard box body 1 so that the cardboard box body 1 will not collapse inward, increasing the overall strength of the cardboard box body 1, thus making it easy to fold and store.

[0037] Existing methods involve directly placing items inside a box for packaging, but this can lead to items moving around inside the box and getting damaged. Therefore, this embodiment addresses this issue by employing the following technical solution: Figure 1 , Figure 4 and Figure 5 Since the inner bottom of the carton lid 3 is fixedly connected with springs 12 at equal intervals, the cross-sectional area of ​​the limiting plate 13 is smaller than the inner cross-sectional area of ​​the support frame 2, and the limiting plate 13 forms a telescopic structure inside the support frame 2.

[0038] Therefore, the item is placed inside the support frame 2, so that the lower end of the item is attached to the bottom of the inside of the cardboard box body 1. The cardboard box lid 3 is snapped onto the upper end of the cardboard box body 1, so that the equally spaced springs 12 drive the limiting plate 13 to move downward until the lower end of the limiting plate 13 is tightly attached to the upper end of the item, thus limiting the item and making it easy to limit the packaged items and prevent the items from shaking.

[0039] Existing methods require lifting the case when carrying, which is cumbersome and inconvenient. Therefore, this embodiment addresses this issue by implementing the following technical solution: Figure 1 , Figure 3 , Figure 4 and Figure 6 Since the left and right sets of connecting pieces 5 are connected by magnetic means, the hollow structure at the outer end of the connecting column 8 is nested with a limiting strip 9, and the lower end of the connecting strip 10 is rotatably connected to a connecting shaft 11.

[0040] Therefore, after packaging, pull the symmetrically arranged connecting strips 4 to allow the symmetrically arranged connecting holes 7 to nest and connect to the corresponding connecting posts 8, so that the inner wall of the connecting strips 4 fits against the outer walls of the left and right ends of the carton lid 3, and push the connecting strips 10 backward to make the connecting shaft 11 drive the connecting strips 10 to rotate until the symmetrically arranged limiting strips 9 are nested and connected to the hollow structure of the corresponding connecting posts 8.

[0041] The position of the connecting strap 4 on the carton lid 3 is defined so that the upper ends of the two sets of connecting straps 4 on the left and right are close to each other, and the symmetrically arranged connecting ports 6 on the left and right are attached together. The material of the connecting piece 5 is a magnet so that the two sets of connecting pieces 5 on the left and right are attracted together. The position of the connecting port 6 is defined so that the carton body 1 can be lifted up as a whole through the connecting port 6 and the connecting strap 4, making it easy to carry.

[0042] Working principle: Tear the first side panel 102 outward to separate the double-sided tape 103 from the connecting plate 105. Push the first side panel 102 and the second side panel 104 inward respectively, so that the first side panel 102, which is symmetrically arranged on the left and right, is folded onto the bottom plate 101 of the cardboard box, while the second side panel 104, which is symmetrically arranged front and back, is folded onto the first side panel 102. Place the folded cardboard box body 1 into the inside of the cardboard box lid 3 for storage.

[0043] After use, the bottom plate 101, the first side plate 102 and the second side plate 104 of the cardboard box are combined together by using double-sided tape 103 and connecting plate 105. After the support frame 2 is snapped into the inside of the cardboard box body 1, the strength of the cardboard box body 1 is increased. After the item is placed inside the support frame 2, the springs 12 with equal spacing drive the limiting plate 13 to descend until the lower end of the limiting plate 13 is attached to the upper end of the item.

[0044] The symmetrically arranged connecting strips 4 are attached to the left and right walls of the carton lid 3, and the connecting holes 7 are nested in the connecting posts 8. The connecting strip 10 is pushed to make the connecting shaft 11 drive the limiting strip 9 to rotate until the limiting strip 9 is nested in the hollow structure at the outer end of the connecting post 8, thus limiting the position of the connecting strips 4. When the upper ends of the two sets of connecting strips 4 are attached together, the position of the connecting port 6 is limited by the connecting piece 5. The carton body 1 can be lifted through the connecting port 6 and the connecting strips 4. All the electrical components mentioned above are existing technologies and will not be described in detail here.

[0045] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foldable packaging box, comprising a box body (1) and a box lid (3) that snaps onto its upper end for protection. characterized in that Also includes: The left and right ends of the paper box body (1) are screwed with connecting strips (4), and the upper end of the connecting strips (4) is provided with a connecting port (6), and the inner end face of the connecting port (6) is fixedly connected with a connecting piece (5). The paper box body (1) is also connected with a support frame (2), and the left and right sets of connecting pieces (5) are connected by magnetic means. Springs (12) are fixedly connected at equal intervals to the bottom of the inner side of the carton lid (3), and a limit plate (13) is fixedly connected to the lower end of the springs (12).

2. A foldable carton according to claim 1 wherein: The main body of the paper box (1) includes a paper box base plate (101), a first side plate (102), double-sided adhesive (103), a second side plate (104), and a connecting plate (105). The first side plate (102) is fixedly connected to both the left and right ends of the paper box base plate (101), and double-sided adhesive (103) is symmetrically pasted to the upper end of the first side plate (102). The second side plate (104) is fixedly connected to both the front and rear ends of the paper box base plate (101), and the connecting plate (105) is symmetrically fixedly connected to the second side plate (104).

3. A foldable carton according to claim 2 wherein: The width of the connecting plate (105) is equal to the length of the double-sided adhesive (103), and the first side plate (102) is connected to the connecting plate (105) by adhesive bonding.

4. The foldable carton of claim 1, wherein: The lower middle end of the connecting strip (4) is provided with a connecting hole (7), and a connecting post (8) is nested inside the connecting hole (7), wherein the connecting post (8) is fixedly connected to the carton cover (3) symmetrically on the left and right.

5. A foldable packaging box according to claim 4, characterized in that: The hollow structure at the outer end of the connecting column (8) is nested with a limiting strip (9), and the front end of the limiting strip (9) is integrally connected to the rear end of the connecting strip (10).

6. A foldable packaging box according to claim 5, characterized in that: The lower end of the connecting strip (10) is rotatably connected to the connecting shaft (11), and the connecting shaft (11) is symmetrically fixed to the lower outer wall of the connecting belt (4).

7. A foldable packaging box according to claim 1, characterized in that: The cross-sectional area of ​​the limiting plate (13) is smaller than the inner cross-sectional area of ​​the support frame (2), and the limiting plate (13) forms a telescopic structure inside the support frame (2).

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