Foldable tobacco leaf circulation turnover box
By combining integrated die-cutting design with multiple creases and a combination of card strips and raised strips, the problem of traditional turnover boxes breaking apart due to pressure is solved, achieving stable connection and convenient folding, and reducing storage and transportation costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 赣州晨阳纸品有限公司
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional turnover boxes are prone to bursting open due to pressure separation when loading materials, causing material leakage. They are also not easy to fold and store, increasing storage space and logistics costs.
It adopts an integrated die-cutting design, combined with multiple creases and a structure of strips and ridges to ensure the stability of the side panel connection, and achieves quick folding and unfolding through sliding strips.
It improves the connection stability of the turnover box, saves storage space and transportation costs, and is easy to fold and unfold.
Smart Images

Figure CN224466357U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a recyclable turnover box, and more particularly to a foldable recyclable turnover box for raw tobacco leaves. Background Technology
[0002] As the core raw material for tobacco processing, the quality assurance of raw tobacco leaves during storage and transportation is crucial. To ensure the quality of these materials during storage and transportation, the use of appropriate turnover boxes is essential. Traditional turnover boxes often suffer from fixed structures and are not easy to fold and store, which not only increases the demand for storage space but also raises logistics costs.
[0003] Chinese patent publication number CN218594797U discloses a foldable cardboard box, relating to the field of foldable cardboard box technology. The box includes a base plate with horizontal plates hinged to both sides. Vertical plates are provided on both sides of the two horizontal plates, and one side of each of the two vertical plates is hinged to the base plate. Four locking mechanisms are symmetrically installed on the two vertical plates. Each locking mechanism includes a pawl and an L-shaped plate. A limiting block is slidably connected to one side of the L-shaped plate, and the limiting block moves along one side of the L-shaped plate to drive the pawl to rotate.
[0004] In the aforementioned patented design, the horizontal and vertical plates are only connected at the top, with no connection in the middle. When materials are loaded into the box, the pressure exerted by the items on the horizontal and vertical plates may cause the middle area of these two parts to separate, easily leading to a breakage and subsequent material leakage. Utility Model Content
[0005] To overcome the drawback that when materials are loaded into the box, the pressure exerted by the items on the horizontal and vertical panels may cause the middle area of these two parts to separate under stress, thus easily causing them to break apart, this utility model provides a foldable raw tobacco leaf recycling box.
[0006] A foldable raw tobacco leaf recycling box includes a bottom plate, long side plates, short side plates, a cover plate, and locking strips. Long side plates are connected to the top front and rear sides of the bottom plate, and short side plates are connected to the top left and right sides of the bottom plate. The top of the rear long side plate is connected to the cover plate. The lower part of the long side plate has a first crease, the lower part of the short side plate has a second crease, and a third crease line is formed at the junction of the cover plate and the rear long side plate. Locking strips are slidably provided at both ends of each long side plate. The locking strips can slide up and down along the long side plate, short side plate, and cover plate. The short side plate is connected to the long side plate by the locking strips.
[0007] To further explain, the second creases on the two short side panels are designed with a staggered height, the first crease of the rear long side panel is higher than that of the front long side panel, and the first creases of all long side panels are set above the second creases of the short side panels.
[0008] To further explain, it also includes raised strips, with raised strips on both sides of the card strip, and a first groove adapted to the raised strips on the adjacent side of the long side plate and the short side plate.
[0009] To further explain, the short side plate has a notch at the top near the end of the long side plate.
[0010] To further explain, a limiting protrusion is provided on the upper part of the end of the long side plate near the short side plate, and a stop block is connected to the lower part of the end of the long side plate where the locking strip is located.
[0011] To further explain, there is a gap between the long side plate and the short side plate, and a connector is vertically installed inside the clip, with the connector located within the gap.
[0012] To further explain, the cover plate has a second groove at both the left and right ends. The second groove is connected to the first groove on the long side plate. The cover plate is slidably connected to the two locking strips on the rear side through the second groove.
[0013] The beneficial effects of this utility model are as follows: By adopting an integrated die-cutting design and incorporating multiple creases, this utility model allows the turnover box to be folded and unfolded quickly and conveniently, greatly saving storage space and transportation costs. Secondly, the design of the locking strips and raised strips prevents the turnover box from bursting open due to tobacco leaf compression, not only enhancing the connection stability between the side panels but also allowing users to flexibly adjust the box's state as needed, making both folding and unfolding very convenient. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.
[0016] Figure 3 for Figure 1 A magnified view of a section at point B in the middle.
[0017] Figure 4 This is a partial three-dimensional structural diagram of the long side plate and the short side plate of this utility model.
[0018] Figure 5 This is a top view of the card strip of this utility model.
[0019] Figure 6 This is a schematic diagram of the structure of the cover plate of this utility model.
[0020] Figure 7 This is a three-dimensional structural diagram of the first step in the folding process of this utility model.
[0021] Figure 8This is a three-dimensional structural diagram of the present invention after the first step of folding is completed, and then proceeding to the second step.
[0022] Figure 9 This is a three-dimensional structural diagram of the present invention when it has reached the third step of folding.
[0023] Figure 10 This is a three-dimensional structural diagram showing the fourth and final step in the folding process of this utility model.
[0024] The markings in the attached diagram are: 1: base plate, 2: long side plate, 3: short side plate, 4: cover plate, 5: first crease, 6: second crease, 7: third crease, 8: retaining strip, 9: protrusion, 10: first groove, 11: notch, 12: limiting protrusion, 13: stop block, 14: gap, 15: connector, 16: second groove. Detailed Implementation
[0025] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.
[0026] A foldable raw tobacco leaf recycling box, such as Figures 1-10 As shown, the enclosure includes a base plate 1, long side plates 2, short side plates 3, a cover plate 4, and retaining strips 8. The base plate 1 serves as the load-bearing base. Long side plates 2 are connected to the front and rear top sides of the base plate 1, and short side plates 3 are connected to the left and right top sides of the base plate 1. The long side plates 2 and short side plates 3 are folded to form a box enclosure. The top of the rear long side plate 2 is connected to the cover plate 4, which covers the top when closed, providing dust and moisture protection. The base plate 1, long side plates 2, short side plates 3, and cover plate 4 are integrally die-cut. The lower part of the long side plate 2 has a first crease 5, and the lower part of the short side plate 3... A second crease 6 is provided, and a third crease 7 is formed at the junction of the cover plate 4 and the rear long side plate 2. The first crease 5, the second crease 6 and the third crease 7 are completed by an integrated creasing process. The first crease 5 and the second crease 6 allow the long side plate 2 and the short side plate 3 to be folded inward. The third crease 7 allows the cover plate 4 to be folded backward or laid flat. Each long side plate 2 has a sliding retaining strip 8 at both ends. The retaining strip 8 can slide up and down along the long side plate 2, the short side plate 3 and the cover plate 4. The short side plate 3 and the long side plate 2 are connected by the retaining strip 8.
[0027] Furthermore, the second creases 6 on the two short side panels 3 are designed with a staggered height, the first crease 5 of the rear long side panel 2 is higher than that of the front long side panel 2, and the first creases 5 of all long side panels 2 are set above the second creases 6 of the short side panels 3.
[0028] Furthermore, it also includes a protruding strip 9, and the shape of the clip 8 is L-shaped. Each end of the clip 8 has a slot adapted to the long side plate 2 and the short side plate 3. The inner walls of the slots at both ends of the clip 8 are offset with two protruding strips 9. The protruding strips 9 and the clip 8 are integrally injection molded. Each side of the long side plate 2 and the short side plate 3 has two first grooves 10 adapted to the protruding strips 9.
[0029] Furthermore, the top of the short side plate 3 near the end of the long side plate 2 is provided with a notch 11, the width of which is designed to be greater than or equal to the width of the slot of the card strip 8 facing the short side plate 3.
[0030] Furthermore, a limiting protrusion 12 is provided on the upper part of the end of the long side plate 2 near the short side plate 3, and a stop block 13 is connected to the lower part of the end of the long side plate 2. When the stop block 8 slides upward along the long side plate 2 to a position higher than the top notch 11 of the short side plate 3, the stop block 13 will be blocked by the limiting protrusion 12, thereby preventing the stop block 8 from separating from the long side plate 2. At the same time, since the stop block 8 is now higher than the notch 11 of the short side plate 3, the user can freely fold the short side plate 3.
[0031] Furthermore, a gap 14 is left between the long side plate 2 and the short side plate 3, and a connector 15 is vertically arranged inside the clip 8. The connector 15 is located inside the gap 14 and is integrally formed with the clip 8.
[0032] Furthermore, the cover plate 4 is provided with a second groove 16 at both the left and right ends. The second groove 16 is connected to the first groove 10 on the long side plate 2. The second groove 16 does not extend beyond the upper end of the cover plate 4 to prevent the locking strip 8 from detaching from the cover plate 4. The cover plate 4 is slidably connected to the two locking strips 8 on the rear side through the second groove 16.
[0033] When folding the weekly rollaway box, open the cover plate 4 so that the cover plate 4 is aligned with the rear long side plate 2. Pull the four locking strips 8 upwards. The two rear locking strips 8 move onto the cover plate 4 through the first groove 10 and the second groove 16, so that the two front locking strips 8 move upwards until their lower ends are above the notch 11. The limiting protrusion 12 blocks the stop block 13 to prevent the locking strips 8 from detaching from the front long side plate 2. Then fold the short side plate 3 with the lower second crease 6 inwards to the plane of the bottom plate 1, and then fold the other short side plate 3 inwards (see...). Figure 7 Then slide the two front clips 8 downwards and fold the long front side panel 2 inwards (see...). Figure 8 Then fold the long side panel 2 at the back inwards (see...) Figure 9 Finally, fold the cover plate 4 and the clip 8 outwards together (see...). Figure 9This completes the folding of the weekly rollout. To unfold the weekly rollout, unfold the cover plate 4, the rear long side plate 2, and the front long side plate 2 in sequence. Pull the two locking strips 8 of the front side plate upwards, then unfold the two short side plates 3 so that the protrusions 9 of the locking strips 8 align with the first groove 10. Pull the four locking strips 8 downwards in sequence. When the locking strips 8 are fully engaged with the long side plate 2 and the short side plate 3, the unfolding of the weekly rollout is complete.
[0034] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.
Claims
1. A foldable raw tobacco leaf recycling box, characterized in that: It includes a base plate (1), a long side plate (2), a short side plate (3), a cover plate (4), and a retaining strip (8). The top front and rear sides of the base plate (1) are connected to the long side plate (2), the top left and right sides of the base plate (1) are connected to the short side plate (3), the top of the rear long side plate (2) is connected to the cover plate (4), the lower part of the long side plate (2) is provided with a first crease (5), the lower part of the short side plate (3) is provided with a second crease (6), and the cover plate (4) and the rear long side plate (2) form a third crease (7) line at the junction. Each long side plate (2) has a retaining strip (8) slidingly provided at both ends. The retaining strip (8) can slide up and down along the long side plate (2), the short side plate (3), and the cover plate (4). The short side plate (3) and the long side plate (2) are connected by the retaining strip (8).
2. A foldable raw tobacco leaf recycling box according to claim 1, characterized in that: The second crease (6) on the two short side plates (3) adopts a staggered design. The first crease (5) of the rear long side plate (2) is higher than that of the front long side plate (2), and the first crease (5) of all long side plates (2) is set above the second crease (6) of the short side plates (3).
3. A foldable raw tobacco leaf recycling box according to claim 1, characterized in that: It also includes a protrusion (9), with protrusions (9) on both sides of the inner side of the card strip (8), and a first groove (10) adapted to the protrusion (9) on the adjacent side of the long side plate (2) and the short side plate (3).
4. A foldable raw tobacco leaf recycling box according to claim 1, characterized in that: The short side plate (3) has a notch (11) at the top near the end of the long side plate (2).
5. A foldable raw tobacco leaf recycling box according to claim 4, characterized in that: A limiting protrusion (12) is provided on the upper part of the long side plate (2) near the short side plate (3), and a stop block (13) is connected to the lower part of the long side plate (2).
6. A foldable raw tobacco leaf recycling box according to claim 1, characterized in that: A gap (14) is left between the long side plate (2) and the short side plate (3). A connector (15) is vertically installed inside the clip (8), and the connector (15) is located inside the gap (14).
7. A foldable raw tobacco leaf recycling box according to claim 3, characterized in that: The cover plate (4) has a second groove (16) at both the left and right ends. The second groove (16) is connected to the first groove (10) on the long side plate (2). The cover plate (4) is slidably connected to the two locking strips (8) on the rear side through the second groove (16).