Foldable storage box structure
Through a multi-structure design of insert blocks, locking blocks, movable rods, and magnetic blocks, the problems of loose, deformed, and detached connecting parts of traditional folding storage boxes are solved, thereby improving the structural strength and stability of the storage boxes and extending their service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI CHUANGHAO PLASTIC PRODUCTS CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional folding storage boxes take up a lot of space when not in use, and the connecting parts are prone to loosening, deformation, and detachment, resulting in a decrease in structural strength and failing to meet the requirements of safety and reliability.
The design employs a combination of insert blocks and positioning holes, and a locking block and locking interface to optimize force distribution. This, along with a multi-structure design incorporating a movable rod and a magnetic block, enhances connection stability. The movable rod is secured by a magnetic attraction or an interference fit with a friction-enhancing sleeve to ensure the stability of the connecting components.
It effectively avoids loosening, deformation, and detachment caused by external pressure, collision, or prolonged use, improves the structural strength and stability of the storage box, extends its service life, and meets users' requirements for safety and reliability.
Smart Images

Figure CN224225548U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of storage box technology, and more specifically to a foldable storage box structure. Background Technology
[0002] To facilitate storage, sorting, and transportation, we often need to use storage boxes to hold various goods. However, traditional storage boxes have some problems, the most prominent of which is that empty storage boxes still occupy a lot of space when not in use, which causes great inconvenience to storage and transportation.
[0003] To address the issue of traditional storage boxes taking up too much space, various foldable storage boxes have emerged on the market. These storage boxes are designed with a foldable structure, allowing them to be folded into a smaller size when not in use, effectively reducing space occupation and meeting users' space utilization needs to a certain extent.
[0004] However, due to the folding design, storage boxes inevitably have many moving connection points. While these flexible joints enable the folding function of the box, they also become weak points in the structure. Currently, most folding storage boxes mainly rely on simple connecting parts such as buckles and clips to fix them after folding. In actual use, these buckles and clips are prone to loosening, deformation, or even falling off after being subjected to external pressure, collision, or prolonged use. This leads to a significant decrease in the structural strength of the box, and after prolonged use, the box may deform, the side walls of the storage box may unfold, and it may be impossible to fix it again, thus rendering it unusable and failing to meet users' requirements for the safety and reliability of the storage box. Therefore, we propose a foldable storage box structure. Utility Model Content
[0005] In view of this, the present invention provides a foldable storage box structure, which aims to solve the above-mentioned technical problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A foldable storage box structure includes a storage frame, a support unit on the storage frame, a cover plate on the support unit, and the support unit includes a long side wall and a short side wall that are arranged opposite to each other and hinged to the inner wall of the storage frame.
[0008] In some embodiments, the long sidewall includes a top plate and a bottom plate that are disposed vertically and hinged together, with the bottom plate hinged to the inner wall of the storage frame, and an observation window provided on the top plate.
[0009] In some embodiments, positioning holes are provided on both sides of the bottom plate and the top plate, and a uniformly distributed insertion block is provided on one side of the short sidewall, with the shape of the insertion block matching the positioning hole.
[0010] In some embodiments, the outer walls of the bottom plate and the top plate are symmetrically provided with card interfaces, the outer walls of the short side walls are provided with uniformly distributed card blocks, and the insert blocks are provided on the card blocks. The card blocks are provided with alignment holes, the outer walls of the bottom plate and the top plate are provided with insertion holes, and after the long side walls and the short side walls are unfolded and fitted, the insertion holes and the alignment holes are perpendicularly aligned. Movable rods are inserted and slidably installed inside the alignment holes and the insertion holes. Second magnetic blocks are provided on both sides of the movable rods, and insertion rods are provided at the four corners of the cover plate, and a first magnetic block is also provided at one end of the insertion rod.
[0011] In some embodiments, the top of the alignment hole is provided with a narrowing section, and the narrowing section is adapted to the shape of the insertion rod.
[0012] In some embodiments, the movable rod is magnetically engaged within the alignment hole and the insertion hole.
[0013] In some embodiments, the movable rod is interference-fitted into the alignment hole and the insertion hole via a friction-enhancing sleeve.
[0014] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a foldable storage box structure, which has the following beneficial effects:
[0015] Compared to traditional folding storage boxes that rely on simple buckles for fixation, this application utilizes a multi-layered structure, including the cooperation of insert blocks and positioning holes, optimized force distribution through the combination of clips and locking interfaces, continuous sidewalls with movable rods, and magnetic attraction. This effectively prevents loosening, deformation, and detachment caused by external pressure, collisions, or prolonged use, thereby improving the structural strength and stability of the storage box, reducing the stress on critical connection points, lowering the probability of component damage, extending the service life of the storage box, and meeting users' requirements for the safety and reliability of storage boxes. Attached Figure Description
[0016] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model before it is unfolded;
[0018] Figure 2 This is a schematic diagram of the unfolded structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the cover plate structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the card block and card interface mating structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the internal structure of the card block of this utility model.
[0022] in:
[0023] 1. Storage frame; 2. Support unit; 21. Long side wall; 211. Base plate; 2111. Card interface; 2112. Positioning hole; 2113. Insertion hole; 212. Top plate; 213. Observation window; 22. Short side wall; 221. Card block; 222. Insertion block; 223. Alignment hole; 2231. Narrowing section; 3. Cover plate; 31. Insertion rod; 32. First magnetic block; 4. Movable rod; 41. Second magnetic block. Detailed Implementation
[0024] 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.
[0025] Example 1
[0026] Please see Figures 1-5 This utility model provides a technical solution:
[0027] A foldable storage box structure includes a storage frame 1, which serves as the basic load-bearing component of the entire storage box and provides a platform for the installation and support of other components. A support unit 2 is provided on the storage frame 1, which is a key part of the storage box's containment space. A cover plate 3 is provided on the support unit 2, which is used to close the storage box and protect the internal items.
[0028] The support unit 2 includes a long sidewall 21 and a short sidewall 22 that are arranged opposite each other and hinged to the inner wall of the storage frame 1. The long sidewall 21 includes a top plate 212 and a bottom plate 211 that are arranged vertically and hinged to each other. The bottom plate 211 is hinged to the inner wall of the storage frame 1. This hinged design allows the long sidewall 21 to be folded flexibly for easy storage. The top plate 212 is provided with an observation window 213, which allows the user to view the contents of the storage box without opening it. Positioning holes 2112 are provided on both sides of the bottom plate 211 and the top plate 212 for fixing with the short sidewall 22. The short sidewall 22 is provided with evenly distributed inserts 222 on one side, and the shape of the inserts 222 is adapted to the positioning holes 2112. The initial connection between the long sidewall 21 and the short sidewall 22 is achieved by inserting the inserts 222 into the positioning holes 2112.
[0029] When in use, first unfold the long sidewall 21 and the short sidewall 22 in sequence. Since each sidewall is hinged to the storage frame 1, the unfolding operation is relatively convenient. After unfolding, align the insert 222 with the positioning hole 2112 and push the short sidewall 22 close to the bottom plate 211. Insert the insert 222 into the positioning hole 2112. At this time, the support unit 2 is initially unfolded and formed.
[0030] Furthermore, both the base plate 211 and the top plate 212 have symmetrically arranged card interfaces 2111 on their outer walls, and evenly distributed card blocks 221 are arranged on the outer wall of the short side wall 22. Insertion blocks 222 are disposed on the card blocks 221, and alignment holes 223 are provided on the card blocks 221. Insertion holes 2113 are also provided on the outer walls of both the base plate 211 and the top plate 212. When the insertion block 222 is inserted into the positioning hole 2112, the card block 221 is close to the card interface 2111, and the card passes through the card interface 2111. The cooperation between the 1 and the 221 changes the snap-fit position of the insert 222 and the top plate 212, so that when the long sidewall 21 and the short sidewall 22 are subjected to force as a whole, the force point is transformed into the snap-fit 221 and the bottom plate 211. Compared with the traditional connection method that relies only on the insert and the positioning hole, the force structure is more stable, and at the same time, the force on the insert 222 and the positioning hole 2112 is reduced, which reduces the probability of damage to the connection structure and achieves a more optimized snap-fit between the short sidewall 22 and the long sidewall 21.
[0031] After the long sidewall 21 and short sidewall 22 are unfolded and fitted, the insertion hole 2113 and the alignment hole 223 are vertically aligned. Movable rods 4 are inserted and slidably installed inside both the alignment hole 223 and the insertion hole 2113. Second magnetic blocks 41 are provided on both sides of the movable rods 4. Insertion rods 31 are provided at each of the four corners of the cover plate 3, and a first magnetic block 32 is also provided at one end of each insertion rod 31. A narrowing section 2231 is provided at the top of the alignment hole 223, and the narrowing section 2231 is adapted to the shape of the insertion rod 31. When the cover plate 3 closes the unfolded support unit 2, the insertion rods 31 at the four corners of the cover plate 3 are inserted into the alignment holes 223, and the insertion rods 31 push... As the movable rod 4 moves downward, since the insertion hole 2113 and the alignment hole 223 are perpendicularly aligned, the bottom part of the movable rod 4 on the upper side is inserted into the interior of the movable rod 4 on the lower side under the push of the insertion rod 31. This connects the long side wall 21 and the short side wall 22 through the movable rod 4, further securing them in place. At the same time, the second magnetic block 41 on the movable rod 4 and the first magnetic block 32 on the insertion rod 31 attract each other, further enhancing the stability of the connection. This also allows the insertion rod 31 to drive the movable rod 4 to move up and down, making the left and right force-bearing structure of the long side wall 21 and the short side wall 22 more robust. Finally, the cover plate 3 is closed, and the storage box can be used normally.
[0032] In this embodiment, the foldable storage box structure, when unfolded, achieves initial assembly through the engagement of the insert block 222 on the short side wall 22 with the positioning hole 2112 on the long side wall 21; the locking block 221 and the locking interface 2111 further optimize the stress structure. When closing the storage box, the insert rod 31 of the cover plate 3 is inserted into the alignment hole 223, pushing the movable rod 4 downward, so that the movable rod 4 connects the long side wall 21 and the short side wall 22. At the same time, the first magnetic block 32 and the second magnetic block 41 attract each other. The combined effect of multiple structures ensures the structural stability of the storage box during use. When folding, the operation is reversed, and the various hinge parts and movable connecting parts cooperate to allow the storage box to be folded and stored, reducing space occupation.
[0033] Example 2
[0034] Please see Figures 1-5 This utility model provides a technical solution: the movable rod 4 is interference-fitted in the alignment hole 223 and the insertion hole 2113 by means of a friction-enhancing sleeve.
[0035] Unlike Embodiment 1, where the movable rod 4 is mainly connected and fixed within the alignment hole 223 and insertion hole 2113 by the pushing of the insertion rod 31 and the attraction of the magnetic block, in this embodiment, by setting a friction-enhancing sleeve on the movable rod 4 and using an interference fit, the friction between the movable rod 4 and the alignment hole 223 and insertion hole 2113 is increased. When the insertion rod 31 of the cover plate 3 is inserted into the alignment hole 223 and pushes the movable rod 4 downward, the greater friction between the friction-enhancing sleeve and the hole wall can better fix the position of the movable rod 4, further enhancing the connection stability between the long side wall 21 and the short side wall 22, and preventing the movable rod 4 from loosening or shifting during use. This is especially suitable for scenarios where the stability requirements of the storage box are higher and the usage environment is more complex and prone to shaking and vibration.
[0036] Example 3
[0037] Please see Figures 1-5 This utility model provides a technical solution:
[0038] The movable rod 4 is magnetically attached to the alignment hole 223 and the insertion hole 2113.
[0039] Unlike Embodiment 1, although the movable rod 4 in Embodiment 1 is provided with a second magnetic block 41 that attracts the first magnetic block 32 on the insertion rod 31, the installation of the movable rod 4 in the hole does not rely entirely on magnetic attraction. In this embodiment, the movable rod 4 is installed and fixed mainly by magnetic attraction with the alignment hole 223 and the insertion hole 2113. The magnetic components on the movable rod 4 attract the magnetic components provided on the inner walls of the alignment hole 223 and the insertion hole 2113, so that the movable rod 4 can be accurately positioned and fixed in the hole. When the insertion rod 31 of the cover plate 3 is inserted into the alignment hole 223, the insertion rod 31 pushes the movable rod 4 down. Under the magnetic attraction, the movable rod 4 can more smoothly connect the long side wall 21 and the short side wall 22. In use, the magnetic fixation method can continuously maintain the stability of the movable rod 4 and reduce the possibility of the movable rod 4 loosening due to external force.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A foldable storage box structure, comprising a storage frame (1), a support unit (2) provided on the storage frame (1), and a cover plate (3) provided on the support unit (2), characterized in that: The support unit (2) includes a long sidewall (21) and a short sidewall (22) that are arranged opposite to each other and hinged to the inner wall of the storage frame (1).
2. The foldable storage box structure according to claim 1, characterized in that: The long sidewall (21) includes a top plate (212) and a bottom plate (211) that are arranged vertically and hinged together, and the bottom plate (211) is hinged to the inner wall of the storage frame (1). The top plate (212) is provided with an observation window (213).
3. The foldable storage box structure according to claim 2, characterized in that: The bottom plate (211) and the top plate (212) are provided with positioning holes (2112) on both sides. The short sidewall (22) is provided with evenly distributed inserts (222), and the shape of the inserts (222) is adapted to the positioning holes (2112).
4. The foldable storage box structure according to claim 3, characterized in that: The bottom plate (211) and the top plate (212) are symmetrically provided with card interfaces (2111). The short side wall (22) is provided with uniformly distributed card blocks (221). The insertion block (222) is provided on the card block (221). The card block (221) is provided with alignment holes (223). The bottom plate (211) and the top plate (212) are provided with insertion holes (2113). After the long side wall (21) and the short side wall (22) are unfolded and fitted, the insertion hole (2113) and the alignment hole (223) are vertically aligned. The alignment hole (223) and the insertion hole (2113) are both inserted and slidably installed with movable rods (4). The movable rods (41) are provided on both sides. The cover plate (3) is provided with insertion rods (31) at the four corners. The insertion rods (31) are also provided with a first magnetic block (32) at one end.
5. The foldable storage box structure according to claim 4, characterized in that: The top of the alignment hole (223) is provided with a narrow section (2231), and the narrow section (2231) is adapted to the shape of the insertion rod (31).
6. The foldable storage box structure according to claim 4, characterized in that: The movable rod (4) is magnetically attached to the alignment hole (223) and the insertion hole (2113).
7. The foldable storage box structure according to claim 4, characterized in that: The movable rod (4) is interference-fitted to the alignment hole (223) and the insertion hole (2113) by means of a friction-enhancing sleeve.