A new plastic packaging box
By designing a limiting mechanism and elastic components, the problems of partition displacement and inconvenience for single-person operation during the transportation of plastic packaging boxes are solved, enabling convenient opening of the lid and stable fixation of the partition, thereby improving the stability of the items and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG WEISEN PACKAGING TECHNOLOGY CO LTD
- Filing Date
- 2025-09-15
- Publication Date
- 2026-07-14
AI Technical Summary
Existing plastic packaging boxes are prone to displacement of the partitions due to vibration during movement or transportation, resulting in unstable placement of items. Furthermore, the opening process is cumbersome and inefficient when operated by a single person.
The design incorporates a limiting mechanism and elastic elements. The lid can be unlocked with one hand by rotating the knob of the limiting mechanism, while the elastic elements automatically lock the partition position to ensure stability. Multiple interlocking fixation points further enhance the lid's secure hold.
It enables convenient one-handed opening and secure fixing of the lid, and automatic locking of the partition position, improving the stability of item placement and operational efficiency.
Smart Images
Figure CN224492087U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging box technology, and in particular to a novel plastic packaging box. Background Technology
[0002] Plastic packaging boxes, as an indispensable container in modern life, have become a core packaging solution in fields such as food preservation, daily necessities storage, and electronic product protection due to their diverse materials and design flexibility. Their lightweight structure and functional characteristics are perfectly integrated, providing comprehensive protection for goods against moisture, shock, and oxidation, while modular design achieves a dual improvement in portability and space utilization.
[0003] For example, the utility model patent with authorization announcement number CN221498916U discloses a plastic packaging box. The description states that "when using this device, first adjust the distance between the partitions according to the size of the items by the interaction of the slider and the first sliding groove. After adjustment, place the items into the box, then close the lid. The interaction of the slot and the sealing strip improves the sealing of the box, thus better protecting the items. Then, fix the lid. Through the interaction of the baffle and the second spring, when the clip is inserted into the buckle, the pushing force of the second spring allows the limiting rod to be inserted into the clip hole, thus preventing the lid from falling off and better protecting the items inside the box, preventing items from spilling." However, this description does not clearly explain the effective fixing method of the partitions after adjustment to the appropriate position. In practical applications, when the device is in motion or transportation, the partitions are easily displaced due to vibration, which can damage the stability of the internal items and even lead to the risk of items tipping over or being damaged. Furthermore, in actual operation, users must continuously pull the pull rings on both sides of the suitcase with both hands to unlock the lid. However, this operation only completes the unlocking step; once the user releases their hands, the lid immediately re-locks. This means that when one person's hand operation is limited, a second person is often needed to remove the lid, making the entire opening process cumbersome and inefficient, causing great inconvenience to the user. Utility Model Content
[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a novel plastic packaging box, comprising a box body, with a cover inserted into the upper end of the box body; multiple holes are provided on the end face of the cover; multiple partitions with internal elastic elements are slidably arranged inside the box body; a limiting mechanism capable of expansion and contraction is provided on the surface of the box body, and multiple inserts are provided on the surface of the expansion and contraction portion of the limiting mechanism.
[0005] As an improvement to the above technical solution, the partition includes a movable plate, a slider, a sliding rod, an anti-slip rubber block, and a spring. The movable plate is slidably arranged inside the box body. The movable plate is slidably engaged with the box body through sliders at both ends. A sliding rod is slidably arranged inside the movable plate. An anti-slip rubber block is fixedly connected to the lower end of the sliding rod. A spring is wound around the surface of the sliding rod. One end of the spring is fixedly connected to the movable plate, and the other end of the spring is fixedly connected to the handle end of the sliding rod.
[0006] As an improvement to the above technical solution, the limiting mechanism includes a bidirectional lead screw, a moving block, a moving rod, and limiting posts. The bidirectional lead screw is rotatably provided on the surface of the box body. Two moving blocks are threadedly connected to the surface of the bidirectional lead screw. A moving rod is fixedly connected to the upper end of the moving block. Multiple limiting posts are provided on the surface of the moving rod. The moving rod is slidably connected to the box body.
[0007] As an improvement to the above technical solution, the box body includes a box body, a limiting block, and screws. The inside of the box body is provided with a sliding groove, and the upper end of the box body is provided with a limiting groove. Two limiting blocks are fixedly connected to the end face of the box body, and screws are threadedly connected to the surface of the limiting blocks.
[0008] As an improvement to the above technical solution, the cover includes an upper cover, a limiting plate, a perforated plate, and a sealing sheet. The lower end of the upper cover is fixedly connected to the limiting plate, the perforated plate, and the sealing sheet. The limiting plate is adapted to the limiting groove, and the multiple holes on the surface of the perforated plate are adapted to the limiting posts.
[0009] The beneficial effects of this utility model are:
[0010] 1. By incorporating a limiting mechanism, the lid is secured in multiple locations, significantly improving its stability. Furthermore, when opening the lid, the user can easily release the lid's constraint by simply turning the knob of the limiting mechanism with one hand. Even after releasing the knob, the two expanding and contracting parts of the limiting mechanism will not reset, making it easy for the user to open the lid and providing highly convenient operation.
[0011] 2. When the user closes the lid, the elastic element inside the partition will automatically press against the inside of the box, further ensuring the stability of the partition position. When the user opens the lid, since the lid no longer applies pressure to the elastic element inside the partition, under the action of the elastic element's own elasticity, its lower end will leave the inner bottom surface of the box, automatically releasing the constraint on the partition. At the same time, the upper end of the elastic element will also automatically push the lid out, making it easier for the user to remove the lid. Attached Figure Description
[0012] Figure 1 This is a structural diagram of one side of the entire utility model;
[0013] Figure 2 This is a structural diagram of the other side of the entire utility model;
[0014] Figure 3 This is a diagram showing the internal structure of the box body of this utility model;
[0015] Figure 4 This is a structural diagram of the limiting mechanism of this utility model;
[0016] Figure 5 This is a structural diagram of the cover of this utility model;
[0017] Figure 6 This is a structural diagram of the partition of this utility model.
[0018] Reference numerals in the attached drawings: 1. Box body; 11. Box body; 12. Slide groove; 13. Limiting groove; 14. Limiting block; 15. Screw; 2. Partition; 21. Moving plate; 22. Slider; 23. Sliding rod; 24. Anti-slip rubber block; 25. Spring; 3. Cover; 31. Top cover; 32. Limiting plate; 33. Perforated plate; 34. Sealing sheet; 4. Limiting mechanism; 41. Two-way lead screw; 42. Moving block; 43. Moving rod; 44. Limiting post. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.
[0020] Please see Figure 1-6 This utility model provides a technical solution: a novel plastic packaging box, including a box body 1, a cover 3 inserted into the upper end of the box body 1; multiple holes are opened on the end face of the cover 3; multiple partitions 2 with internal elastic elements are slidably arranged inside the box body 1; a limiting mechanism 4 that can expand and contract is provided on the surface of the box body 1, and multiple inserts are provided on the surface of the expanding and contracting part of the limiting mechanism 4.
[0021] In this implementation plan, during actual use, the user first needs to flexibly divide the internal space of the box 1. Specifically, the user manually moves multiple partitions 2 so that the partitions 2 can slide smoothly inside the box 1. Through this sliding adjustment, the user can freely change the size of the divided space inside the box 1 according to the size and storage needs of different types of items, thereby achieving efficient and orderly classified storage.
[0022] After completing the space division, the user smoothly places the lid 3 on top of the box 1, ensuring that the lid 3 is accurately inserted into the corresponding position on the top of the box 1. Next, the user rotates the rotating part of the limiting mechanism 4, which causes the two expanding and contracting parts of the limiting mechanism 4 to contract. As the expanding and contracting parts contract, multiple inserts are precisely inserted into the multiple pre-set holes on the lid 3, thereby achieving a stable fixation of the lid 3.
[0023] As the cover 3 is closed, the lower end of the cover 3 exerts a squeezing force on the elastic element that slides inside the partition 2. Under this pressure, the elastic element slides down until its lower end is firmly pressed against the inner bottom surface of the box 1. In this way, once the cover 3 is successfully locked, the position of the partition 2 is also simultaneously locked due to the resistance of the elastic element, ensuring the stability of the entire storage structure.
[0024] When it is necessary to open the cover 3, the user only needs to rotate the rotating part of the limiting mechanism 4 in the opposite direction. This reverse rotation will cause the two expanding and contracting parts of the limiting mechanism 4 to expand, thereby causing the insert to disengage from the multiple holes of the cover 3, thus unlocking the cover 3. Subsequently, the cover 3 can be easily opened. Since the cover 3 no longer applies pressure to the elastic element inside the partition 2, under the action of the elastic element's own elastic force, its lower end will leave the inner bottom surface of the box 1, automatically releasing the constraint on the partition 2. At the same time, the upper end of the elastic element will also automatically push the cover 3 out, making it easier for the user to remove the cover 3.
[0025] This design, through the setting of the limiting mechanism 4, achieves multiple insertions and fixations to the lid 3, greatly improving the fixing effect of the lid 3. Moreover, when opening the lid 3, the user only needs to turn the knob of the limiting mechanism 4 with one hand to easily release the constraint on the lid 3. Even if the user releases the knob, the two expansion and contraction parts of the limiting mechanism 4 will not reset, thus making it easy for the user to open the lid 3, and the operation is very convenient. At the same time, when the user closes the lid 3, the elastic element inside the partition 2 will automatically abut against the inside of the box 1, further ensuring the stability of the position of the partition 2.
[0026] like Figure 3 and Figure 6 As shown, the partition 2 includes a movable plate 21, a slider 22, a sliding rod 23, an anti-slip rubber block 24, and a spring 25. The movable plate 21 is slidably arranged inside the box body 1. The movable plate 21 is slidably engaged with the box body 1 by the sliders 22 at both ends. The sliding rod 23 is slidably arranged inside the movable plate 21. The lower end of the sliding rod 23 is fixedly connected to the anti-slip rubber block 24. The surface of the sliding rod 23 is wound with a spring 25. One end of the spring 25 is fixedly connected to the movable plate 21, and the other end of the spring 25 is fixedly connected to the handle end of the sliding rod 23.
[0027] In this embodiment, the user moves the movable plate 21, causing the movable plate 21 and the slider 22 to slide inside the box 1. When the user closes the cover 3, the lower end of the cover 3 presses against the upper end of the sliding rod 23, causing the sliding rod 23 to slide downward. At the same time, the spring 25 is compressed, and the sliding rod 23 is pressed against the inner bottom surface of the box 1 by the anti-slip rubber block 24. When the cover 3 is locked by the limiting mechanism 4, the anti-slip rubber block 24 locks the position of the movable plate 21 by the friction between it and the box 1. When the user releases the lock on the cover 3, the sliding rod 23 automatically slides upward under the elastic force of the spring 25, thereby pushing the cover 3 out, making it easier for the user to remove the cover 3.
[0028] like Figure 4 As shown, the limiting mechanism 4 includes a bidirectional lead screw 41, a moving block 42, a moving rod 43, and limiting posts 44. The bidirectional lead screw 41 is rotatably mounted on the surface of the box body 1. Two moving blocks 42 are threadedly connected to the surface of the bidirectional lead screw 41. The upper end of the moving block 42 is fixedly connected to the moving rod 43. Multiple limiting posts 44 are provided on the surface of the moving rod 43. The moving rod 43 is slidably connected to the box body 1.
[0029] In this embodiment, after the cover 3 is placed on the upper end of the box 1, the user rotates the bidirectional lead screw 41. As the bidirectional lead screw 41 rotates, it causes the two moving blocks 42 to move closer to each other, which in turn causes the two moving rods 43 to move closer to each other, so that the multiple limiting posts 44 are inserted into the multiple holes pre-set on the cover 3, thereby achieving a stable fixation of the cover 3.
[0030] like Figure 3 As shown, the box body 1 includes a box body 11, a limiting block 14, and a screw 15. The inside of the box body 1 is provided with a sliding groove 12, and the upper end of the box body 1 is provided with a limiting groove 13. Two limiting blocks 14 are fixedly connected to the end face of the box body 1, and screws 15 are threadedly connected to the surface of the limiting block 14.
[0031] In this embodiment, by opening a groove 12 inside the box body 1, the slider 22 slides inside the groove 12, thereby guiding and limiting the movement of the moving plate 21. After the limiting mechanism 4 locks the cover 3, the user tightens the screw 15, thereby locking the position of the moving rod 43, thereby achieving self-locking of the limiting mechanism 4, and thus improving the fixing effect of the limiting mechanism 4 on the cover 3.
[0032] like Figure 5 As shown, the cover 3 includes an upper cover 31, a limiting plate 32, a perforated plate 33, and a sealing sheet 34. The lower end of the upper cover 31 is fixedly connected to the limiting plate 32, the perforated plate 33, and the sealing sheet 34. The limiting plate 32 is adapted to the limiting groove 13, and the multiple holes on the surface of the perforated plate 33 are adapted to the limiting post 44.
[0033] In this embodiment, when the user puts the top cover 31 on, the limiting plate 32 slides into the limiting groove 13. When the user rotates the bidirectional screw 41, the limiting post 44 will be inserted into the hole of the perforated plate 33, thereby fixing the top cover 31. At this time, the sealing sheet 34 abuts against the upper end of the box body 11 to seal the box body 1.
[0034] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A novel plastic packaging box, comprising a box body (1), characterized in that: A cover (3) is inserted into the upper end of the box (1); The end face of the cover (3) is provided with multiple holes; The box body (1) has multiple partitions (2) with internal elastic elements that are slidably arranged inside; The surface of the box (1) is provided with a limiting mechanism (4) that can expand and contract, and the surface of the expanding and contracting part of the limiting mechanism (4) is provided with multiple inserts.
2. The novel plastic packaging box according to claim 1, characterized in that: The partition (2) includes a movable plate (21), a slider (22), a sliding rod (23), an anti-slip rubber block (24), and a spring (25). The movable plate (21) is slidably arranged inside the box body (1). The movable plate (21) is slidably engaged with the box body (1) by the sliders (22) at both ends. The sliding rod (23) is slidably arranged inside the movable plate (21). The lower end of the sliding rod (23) is fixedly connected to the anti-slip rubber block (24). The surface of the sliding rod (23) is wound with a spring (25). One end of the spring (25) is fixedly connected to the movable plate (21), and the other end of the spring (25) is fixedly connected to the handle end of the sliding rod (23).
3. A novel plastic packaging box according to claim 2, characterized in that: The limiting mechanism (4) includes a bidirectional lead screw (41), a moving block (42), a moving rod (43), and limiting posts (44). The surface of the box (1) is rotatably provided with a bidirectional lead screw (41). The surface of the bidirectional lead screw (41) is threadedly connected with two moving blocks (42). The upper end of the moving block (42) is fixedly connected with a moving rod (43). The surface of the moving rod (43) is provided with multiple limiting posts (44). The moving rod (43) is slidably connected to the box (1).
4. A novel plastic packaging box according to claim 3, characterized in that: The box body (1) includes a box body (11), a limiting block (14), and a screw (15). The box body (1) has a sliding groove (12) inside and a limiting groove (13) at the upper end. Two limiting blocks (14) are fixedly connected to the end face of the box body (1), and screws (15) are threaded onto the surface of the limiting blocks (14).
5. A novel plastic packaging box according to claim 4, characterized in that: The cover (3) includes an upper cover (31), a limiting plate (32), a perforated plate (33), and a sealing sheet (34). The lower end of the upper cover (31) is fixedly connected to the limiting plate (32), the perforated plate (33), and the sealing sheet (34). The limiting plate (32) is adapted to the limiting groove (13), and the multiple holes on the surface of the perforated plate (33) are adapted to the limiting post (44).