Expandable packaging carton
By introducing extended storage grooves, locking bolts, and connecting hinges into the packaging carton, the problems of fixed capacity and insufficient protection of existing cartons are solved, achieving capacity adjustment and improved stability, making it suitable for packaging a variety of items.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-03-24
AI Technical Summary
The existing packaging carton has a fixed structure and cannot adjust its capacity, resulting in poor stability when storing small or large items. Furthermore, the existing expansion structure is not effective in protecting tall objects.
An expandable packaging carton was designed. By incorporating expansion storage grooves, locking bolts, and connecting hinges on the carton body, combined with corrugated cardboard material, the carton can be expanded and locked in multiple layers to accommodate different item sizes.
It enables flexible adjustment of carton capacity, improves stability and protection during transportation, reduces production costs, and facilitates mass production and widespread adoption.
Smart Images

Figure CN224029474U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to packing carton technical field especially relates to a packing carton of extensible capacity. BACKGROUND
[0002] The packing carton is the most widely used packaging product, according to different materials, there are corrugated carton, single layer paperboard box, etc., have various specifications and models, usually used as the wrapping of commodity or the outer layer of article protection, but most of the paper box structure is fixed now, the capacity of the article stored in its interior cannot be adjusted, if the capacity cannot be adjusted, when the volume of the article is small, there is no suitable filler, these articles are placed in the paper box and then move around, not only easy to cause damage to the interior of the paper box, the article itself is also affected, at the same time, it also causes the problem of lacking stability of the paper box, when the volume of the article is large, the capacity cannot be adjusted, so that the paper box cannot be used, thereby reducing the practicability of the paper box.
[0003] The utility model discloses a packing carton of extensible capacity, including the inner lid of box body, the upper end of box body is installed with the inner lid, is connected with the connecting assembly on the box body, and the connecting assembly can make the volume of packing carton expand, the connecting assembly includes support paperboard and tray, the support paperboard sets up at the side end of box body, and the tray is installed at the lower end surface of box body.
[0004] When using, in the prior art, the paper box can only be expanded horizontally, but when the object is high, the object can only be fixed by extending the part outside the paper box with adhesive tape, if the adhesive tape is damaged, the object will be scratched, and the protection effect is poor, therefore, we provide a packing carton of extensible capacity. Utility model content
[0005] Therefore, the application provides a packing carton of extensible capacity, which solves the above technical problems to some extent.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] The utility model provides an extensible packing carton, including packing carton main part, the right side of packing carton main part is equipped with expansion storage slide groove, the inner side sliding installation of expansion storage slide groove has first expansion carton, the front side of packing carton main part is equipped with two locking bolt, the bottom of packing carton main part and first expansion carton is equipped with first storage groove, the inner side sliding installation of first storage groove has second expansion carton and third expansion carton, one side of second expansion carton is equipped with second storage groove, third expansion carton sliding installation is in the inner side of second storage groove, the left side of packing carton main part and second expansion carton is fixedly installed with connecting hinge, the side rotation installation of connecting hinge has packing paperboard.
[0008] As a further improvement of the above-mentioned scheme, the inner wall of one side of the packing paperboard is fixedly installed with a fixed rod and a spring, the outer side of the fixed rod is slidingly installed with a sliding packing board, and the outer side of one end of the spring is fixedly installed on the outer side of one end of the sliding packing board.
[0009] As a further improvement of the above-mentioned scheme, one side of the sliding packing board is provided with a clamping groove, and the clamping groove is matched with the first expansion carton and the third expansion carton.
[0010] As a further improvement of the above-mentioned scheme, the width of the expansion storage slide groove is greater than the width of the first storage groove, and the width of the first storage groove is greater than the width of the second storage groove.
[0011] As a further improvement of the above-mentioned scheme, the front side of the packing carton main part is provided with a threaded hole, the locking bolt is threadedly installed in the inner side of the threaded hole, and the outer side of one end of the locking bolt is rotatably installed with an anti-skid pad.
[0012] As a further improvement of the above-mentioned scheme, the material of the packing carton main part, the first expansion carton, the second expansion carton and the third expansion carton is corrugated paperboard material.
[0013] As a further improvement of the above-mentioned scheme, the material of the packing paperboard and the sliding packing board is corrugated paperboard, the top of the packing paperboard is provided with a moving groove, and the sliding packing board is matched with the moving groove.
[0014] As a further improvement of the above-mentioned scheme, one side of the sliding packing board is provided with a guide groove, and the fixed rod is matched with the guide groove.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] (1) The utility model discloses a packing carton of expandable, when the object length is longer, can rotate the plurality of locking bolts of packing carton main part top, locking bolt can be through the thread cooperation on packing carton main part top and move position, can let locking bolt cancel the resistance fixed of first expansion carton, can let first expansion carton slide from the expansion storage slide groove inside packing carton main part top, can adjust the sliding distance of first expansion carton according to the length of object, after sliding, can control locking bolt and rotate again, can let locking bolt lock the position of first expansion carton, can let the carton in the movement transportation, and packing carton main part and first expansion carton do not produce the displacement condition;
[0017] (2) The utility model discloses a packing carton of expandable, the outer diameter of first storage groove is less than the outer diameter of expansion storage slide groove, can let packing carton main part can support first expansion carton, and let second expansion carton and third expansion carton can slide in the inside of packing carton main part and first expansion carton, after the distance adjustment of second expansion carton and third expansion carton is completed, can rotate locking bolt and move again, and locking bolt can lock the position of second expansion carton, to let second expansion carton be more stable after sliding.
[0018] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are described in detail as follows. DRAWINGS
[0019] Figure 1 It is a three-dimensional structure schematic diagram of the packing carton of expandable provided by the utility model;
[0020] Figure 2 It is a three-dimensional diagram of the partial structure of the packing carton of expandable provided by the utility model;
[0021] Figure 3 It is a three-dimensional diagram of the partial structure of the packing carton of expandable provided by the utility model;
[0022] Figure 4 It is a three-dimensional diagram of the partial structure of the packing carton of expandable provided by the utility model;
[0023] Figure 5 It is a three-dimensional diagram of the partial structure of the sliding packing plate and the clamping groove provided by the utility model.
[0024] REFERENCE NUMERALS:
[0025] 1, packing carton main body; 2, first expansion carton; 3, expansion storage sliding groove; 4, locking bolt; 5, first storage groove; 6, second expansion carton; 7, second storage groove; 8, third expansion carton; 9, connecting hinge; 10, packing paperboard; 11, fixed rod; 12, sliding packing plate; 13, spring; 14, clamping groove. DETAILED DESCRIPTION
[0026] In order to further understand the application content, characteristics and effects of the utility model, the following examples are given, and the detailed description is given as follows in combination with the drawings.
[0027] The structure of the utility model will be described in detail below in combination with the drawings.
[0028] Reference Figures 1-5 A expandable packing carton, including packing carton main body 1, packing carton main body 1 right side is set up expansion storage sliding groove 3, expansion storage sliding groove 3 inner side sliding installation has first expansion carton 2, packing carton main body 1 front side is screw mounted with two locking bolts 4, packing carton main body 1 and first expansion carton 2 bottom are set up first storage groove 5, first storage groove 5 inner side sliding installation has second expansion carton 6 and third expansion carton 8, second expansion carton 6 one side is set up second storage groove 7, third expansion carton 8 sliding installation is in second storage groove 7 inner side, packing carton main body 1 and second expansion carton 6 left side fixed installation has connecting hinge 9, connecting hinge 9 one side rotation installation has packing paperboard 10.
[0029] In the embodiment, the inner wall of one side of the packing paperboard 10 is fixedly installed with the fixed rod 11 and the spring 13, the outer side of the fixed rod 11 is slidingly installed with the sliding packing plate 12, and the outer side of one end of the spring 13 is fixedly installed on the outer side of one end of the sliding packing plate 12.
[0030] In the embodiment, the sliding packing plate 12 is provided with the clamping groove 14, and the clamping groove 14 is attached to the first expansion carton 2 and the third expansion carton 8.
[0031] In the embodiment, the width of the expansion storage sliding groove 3 is greater than the width of the first storage groove 5, the width of the first storage groove 5 is greater than the width of the second storage groove 7, the outer diameter of the first storage groove 5 is smaller than the outer diameter of the expansion storage sliding groove 3, the packing carton main body 1 can support the first expansion carton 2, and the second expansion carton 6 and the third expansion carton 8 can slide out from the inner side of the packing carton main body 1 and the first expansion carton 2.
[0032] In this embodiment, the front side of the packaging carton body 1 is provided with a threaded hole, and the locking bolt 4 is threadedly installed on the inner side of the threaded hole. The outer side of one end of the locking bolt 4 is rotatably installed with an anti-skid pad. The locking bolt 4 cancels the abutting fixation of the first expansion carton 2, so that the first expansion carton 2 can slide out from the inside of the expansion storage sliding groove 3 above the packaging carton body 1. The sliding-out distance of the first expansion carton 2 can be adjusted according to the length of the object. After the sliding-out is completed, the locking bolt 4 can be controlled to rotate again, so that the locking bolt 4 can lock the first expansion carton 2 in position.
[0033] In this embodiment, the materials of the packaging carton body 1, the first expansion carton 2, the second expansion carton 6, and the third expansion carton 8 are all corrugated paperboard materials. The material of the corrugated paperboard can make the manufacturing cost of the carton lower, so that mass production is possible, and popular use is facilitated.
[0034] In this embodiment, the materials of the packaging carton body 1, the first expansion carton 2, the second expansion carton 6, and the third expansion carton 8 are all corrugated paperboard materials. The material of the corrugated paperboard can make the manufacturing cost of the carton lower, so that mass production is possible, and popular use is facilitated.
[0035] In this embodiment, one side of the sliding packaging plate 12 is provided with a guide groove, and the fixed rod 11 is fitted with the guide groove. The guide groove can limit the sliding packaging plate 12 with the fixed rod 11, so that the sliding packaging plate 12 is relatively stable when moving, and the sliding packaging plate 12 will not be separated from the top of the fixed rod 11.
[0036] Specific operation is that when the length of the object is relatively long, the plurality of locking bolts 4 above the packaging carton body 1 can be rotated. The locking bolt 4 can move position by threadedly cooperating on the packaging carton body 1 above, so that the locking bolt 4 cancels the abutting fixation of the first expansion carton 2, so that the first expansion carton 2 can slide out from the inside of the expansion storage sliding groove 3 above the packaging carton body 1. The sliding-out distance of the first expansion carton 2 can be adjusted according to the length of the object. After the sliding-out is completed, the locking bolt 4 can be controlled to rotate again, so that the locking bolt 4 can lock the first expansion carton 2 in position. The carton can be moved and transported, and the packaging carton body 1 and the first expansion carton 2 will not be displaced.
[0037] When the height of the object is high, the locking bolt 4 can be rotated again to allow the second and third extension cartons 6 and 8 to slide out from the inner side of the first storage groove 5 above the packaging carton body 1 and the first extension carton 2, the outer diameter of the first storage groove 5 being smaller than that of the extension storage sliding groove 3, so that the packaging carton body 1 can support the first extension carton 2 and the second and third extension cartons 6 and 8 can slide out from the inner side of the packaging carton body 1 and the first extension carton 2. After the distance adjustment of the second and third extension cartons 6 and 8 is completed, the locking bolt 4 can be rotated again to move and lock the position of the second extension carton 6, so that the second extension carton 6 is more stable after sliding out.
[0038] The packaging paperboard 10 is installed above the packaging carton body 1 and the second extension carton 6 through the connecting hinge 9, so that the packaging paperboard 10 can seal and protect the upper and lower sides of the carton. According to the length of the carton, the sliding packaging plate 12 can be pulled out, the fixing rod 11 can limit the sliding packaging plate 12 to move more stably, and the spring 13 can allow the sliding packaging plate 12 to slide into the inner side of the packaging paperboard 10 for storage when the limitation is cancelled. The clamping groove 14 on the sliding packaging plate 12 can be clamped above the third extension carton 8 and the first extension carton 2, so that the packaging paperboard 10 and the sliding packaging plate 12 can seal and protect cartons of different lengths.
[0039] It should be noted that although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A collapsible packaging carton characterised in that, Include: The packaging carton body (1), the right side of the packaging carton body (1) is provided with an expansion storage sliding groove (3), the inner side of the expansion storage sliding groove (3) is slidably installed with a first expansion carton (2), the front side of the packaging carton body (1) is threadedly installed with two locking bolts (4), the bottom of the packaging carton body (1) and the first expansion carton (2) is provided with a first storage groove (5), the inner side of the first storage groove (5) is slidably installed with a second expansion carton (6) and a third expansion carton (8), one side of the second expansion carton (6) is provided with a second storage groove (7), the third expansion carton (8) is slidably installed in the inner side of the second storage groove (7), the left side of the packaging carton body (1) and the second expansion carton (6) is fixedly installed with a connecting hinge (9), one side of the connecting hinge (9) is rotatably installed with a packaging paperboard (10).
2. The expandable carton of claim 1, wherein, The inner wall of one side of the packaging paperboard (10) is fixedly installed with a fixed rod (11) and a spring (13), the outer side of the fixed rod (11) is slidably installed with a sliding packaging plate (12), one end of the outer side of the spring (13) is fixedly installed on one end of the outer side of the sliding packaging plate (12).
3. The expandable carton of claim 2 wherein, One side of the sliding packaging plate (12) is provided with a clamping groove (14), the clamping groove (14) is matched with the first expansion carton (2) and the third expansion carton (8).
4. The expandable carton of claim 1, wherein, The width of the expansion storage sliding groove (3) is greater than the width of the first storage groove (5), the width of the first storage groove (5) is greater than the width of the second storage groove (7).
5. The expandable carton of claim 1 wherein, The front side of the packaging carton body (1) is provided with a threaded hole, the locking bolt (4) is threadedly installed in the inner side of the threaded hole, the outer side of one end of the locking bolt (4) is rotatably installed with a non-slip pad.
6. The expandable carton of claim 1, wherein, The material of the packaging carton body (1), the first expansion carton (2), the second expansion carton (6) and the third expansion carton (8) is corrugated paperboard material.
7. The expandable carton of claim 2 wherein, The material of the packaging paperboard (10) and the sliding packaging plate (12) is corrugated paperboard, the top of the packaging paperboard (10) is provided with a moving groove, the sliding packaging plate (12) is matched with the moving groove.
8. The expandable carton of claim 2, wherein, One side of the sliding packaging plate (12) is provided with a guide groove, the fixed rod (11) is matched with the guide groove.
Citation Information
Patent Citations
Expandable packaging carton
CN221317217U