Portable plastic box

Abstract

The utility model provides a portable plastic box. The portable plastic box comprises a box body provided with a top cover; the partition plate is fixedly mounted in the box body and divides the box body into a left space and a right space; the bottom plate is arranged in the left side space of the box body in a sliding manner; the lifting rod is rotationally mounted on the bottom plate and used for moving the bottom plate up and down; the side plate is hinged to the bottom plate and is connected with a limiting mechanism arranged on the lifting rod; the supporting block is fixedly installed in the right side space of the box body and divides the right side space of the box body into an upper part and a lower part, and a storage box is arranged on the supporting block in a sliding mode. The portable plastic box provided by the utility model has the advantages that the space in the plastic box is layered, so that articles can be stored, collected and taken out conveniently.

Description

Technical Field

[0001] This utility model relates to the field of plastic box technology, and in particular to a portable plastic box. Background Technology

[0002] Plastic boxes are packaging containers made of plastic and are widely used. Plastic boxes have good corrosion resistance. Portable plastic boxes are typically made of high-density polyethylene (HDPE), polypropylene (PP), and other plastic materials. These materials are lightweight, high-strength, and corrosion-resistant.

[0003] However, many plastic boxes currently available rarely have tiered designs, so they are mostly piled together when stored, making it difficult to find them later. They lack the function of categorizing and placing items, and if you want to put slightly larger items, you cannot disassemble them as needed.

[0004] Therefore, it is necessary to provide a new portable plastic box to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the technical problem of plastic boxes lacking layered design, making it difficult to store and find items, this utility model provides a portable plastic box.

[0006] The portable plastic box provided by this utility model includes: a box body with a top cover; a partition, which is fixedly installed in the box body and divides the box body into left and right spaces; a bottom plate, which is slidably disposed in the left space of the box body; a lifting rod, which is rotatably mounted on the bottom plate and used to move the bottom plate up and down; a side plate, which is hinged to the bottom plate and connected to a limiting mechanism disposed on the lifting rod; and a support block, which is fixedly installed in the right space of the box body and divides the right space of the box body into upper and lower parts, and a storage box is slidably disposed on the support block.

[0007] Preferably, the limiting mechanism includes a limiting block, a fixing block, and a traction belt. The limiting block is fixedly installed on the lifting rod, the fixing block is rotatably sleeved on the limiting block, and the traction belt is fixedly installed between the fixing block and the side plate to limit the movement angle of the side plate.

[0008] Preferably, operating blocks are fixedly installed on both sides of the inner wall of the opening end of the storage box for removing the storage box from the box body.

[0009] Preferably, a positioning rod is fixedly installed in the left side space of the box body. The lower end of the positioning rod is threaded. An embedding groove is opened in the lifting rod. The positioning rod is slidably embedded in the embedding groove. The bottom of the embedding groove is provided with a threaded groove corresponding to the positioning rod and is threadedly connected to the lower end of the positioning rod.

[0010] Preferably, a movable block is fixedly installed on the top cover, the movable block can deform, a locking block is fixedly installed on the movable block, and a positioning groove is fixedly installed on the box body, the locking block being engaged in the positioning groove.

[0011] Preferably, a mounting base is fixedly installed at the bottom of the box body, a lifting mechanism is provided on the mounting base, and a roller is slidably installed inside the mounting base, the roller being connected to the lifting mechanism.

[0012] Preferably, the lifting mechanism includes a slide groove, a connecting block, a mounting block, and a lifting screw. The slide groove is formed on the mounting base. The connecting block is fixedly mounted on the roller and slidably connected to the slide groove. The mounting block is fixedly mounted on the mounting base. The lifting screw is rotatably mounted between the mounting block and the housing. The lifting screw is threadedly connected to the connecting block.

[0013] Compared with related technologies, the portable plastic box provided by this utility model has the following advantages:

[0014] This utility model provides a portable plastic box:

[0015] The box is divided into two independent spaces by partitions, achieving physical isolation of items and avoiding difficulties in accessing items caused by mixing different types of items. This significantly improves space utilization and the convenience of item classification and management. The left space is equipped with a liftable base and lifting rod structure, allowing users to freely adjust the shelf height according to the height of the items. It is especially suitable for storing items with large height differences, achieving precise adaptation of space utilization.

[0016] The stable structure, composed of limiting blocks, fixing blocks, and traction straps, uses dynamic traction to limit the angle when the side panels are unfolded. This ensures sufficient operating space for picking up and placing items while preventing structural instability caused by excessive unfolding of the side panels, significantly improving operational safety. The right-side space features a double-layer structure built with support blocks. The sliding storage box, combined with the ergonomic operating block design, allows for quick one-handed pulling and placing, making it especially suitable for frequently used small items and improving operational efficiency.

[0017] The engagement between the threaded end of the positioning rod and the internal threaded groove of the lifting rod ensures precise fixation of the base plate height, preventing items from tipping over or the structure from loosening due to shaking. This is especially suitable for transportation or bumpy environments. The sliding engagement between the slide groove and the connecting block in the lifting mechanism ensures that the rollers maintain linear movement during lifting, preventing deviation or jamming and improving overall stability. Attached Figure Description

[0018] Figure 1 A front view schematic diagram of a preferred embodiment of the portable plastic box provided by this utility model;

[0019] Figure 2 A front sectional view of a preferred embodiment of the portable plastic box provided by this utility model;

[0020] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0021] Figure 4 for Figure 2 The diagram shows an enlarged view of part B.

[0022] The following are the labels in the diagram: 1. Box body; 2. Top cover; 3. Partition; 4. Bottom plate; 5. Lifting rod; 6. Side plate; 7. Limiting block; 8. Fixing block; 9. Traction belt; 10. Support block; 11. Storage box; 12. Operating block; 13. Positioning rod; 14. Movable block; 15. Locking block; 16. Positioning groove; 17. Mounting base; 18. Roller; 19. Slide groove; 20. Connecting block; 21. Mounting block; 22. Lifting screw. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figures 1-4 ,in, Figure 1 A front view schematic diagram of a preferred embodiment of the portable plastic box provided by this utility model; Figure 2 A front sectional view of a preferred embodiment of the portable plastic box provided by this utility model; Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 2 The diagram shows an enlarged view of part B.

[0025] The portable plastic box includes: a box body 1 with a top cover 2; a partition 3 fixedly installed inside the box body 1, dividing the box body 1 into left and right spaces; a bottom plate 4 slidably disposed in the left space of the box body 1; a lifting rod 5 rotatably mounted on the bottom plate 4 for moving the bottom plate 4 up and down; a side plate 6 hinged to the bottom plate 4 and connected to a limiting mechanism disposed on the lifting rod 5; and a support block 10 fixedly installed in the right space of the box body 1, dividing the right space of the box body 1 into upper and lower parts, with a storage box 11 slidably disposed on the support block 10. The box body 1 is the main body of the plastic box, and the top cover 2 is disposed on the box body 1, serving a sealing and protective function. The partition 3 divides the box body 1 into left and right spaces, achieving preliminary space division, facilitating the classification and placement of items, preventing items from mixing, and making it easy to find items. The base plate 4 is slidably positioned within the left side space of the box body 1. A lifting rod 5 is rotatably mounted on the base plate 4 for moving the base plate 4 up and down. By operating the lifting rod 5, the height of the base plate 4 can be adjusted. When placing larger items, the base plate 4 can be lifted to retrieve the items stored in the left side space of the box body 1, improving the ease of operation of the plastic box. The side plate 6 can unfold when the base plate 4 is lifted upwards, facilitating the removal of items from the base plate 4. A limiting mechanism is also provided to restrict the unfolding angle of the side plate 6. The support block 10 is fixedly installed within the right side space of the box body 1, dividing the right side space into upper and lower parts, increasing the layering and categorization of storage. A storage box 11 is slidably mounted on the support block 10, allowing for easy removal or insertion of items, further enhancing the ability to categorize and store items.

[0026] The limiting mechanism includes a limiting block 7, a fixing block 8, and a traction belt 9. The limiting block 7 is fixedly installed on the lifting rod 5, and the fixing block 8 is rotatably sleeved on the limiting block 7. The traction belt 9 is fixedly installed between the fixing block 8 and the side plate 6 to limit the angle of movement of the side plate 6. The limiting block 7, as the basic component of the limiting mechanism, provides a support point for the installation and rotation of the fixing block 8. Simultaneously, through its shape and position design, it cooperates with the fixing block 8 to limit the unfolding angle of the side plate 6. The fixing block 8 serves as the mounting base for the traction belt 9. Through its rotatable connection with the limiting block 7, it achieves dynamic limitation of the unfolding angle of the side plate by the traction belt 9. The traction belt 9 is the component in the limiting mechanism that directly applies a limiting force to the side plate 6. When the side plate 6 unfolds, the traction belt 9 tightens as the side plate 6 unfolds, applying an inward pulling force to the side plate 6, thereby limiting its unfolding angle. The limiting mechanism, through the traction belt, applies a limiting force to the side plate, ensuring the stability of the side plate during the unfolding process.

[0027] Operating blocks 12 are fixedly installed on both sides of the inner wall of the open end of the storage box 11 for removing the storage box 11 from the box body 1. The operating blocks 12 are designed in an easy-to-grip shape to ensure that the user can hold them firmly during operation. When it is necessary to remove the storage box 11 from the box body 1, the user only needs to place their fingers on the operating blocks 12 and pull gently to smoothly pull out the storage box 11. This design avoids the slippage or inconvenience that may occur if the user directly grips the edge of the storage box. The addition of the operating blocks 12 makes the removal of the storage box 11 easier and faster, greatly improving the user experience. The function of the operating blocks 12 is even more prominent when the storage box 11 is full of items or is in a deeper position.

[0028] A positioning rod 13 is fixedly installed in the left side space of the box body 1. The lower end of the positioning rod 13 is threaded. An embedding groove is formed in the lifting rod 5. The positioning rod 13 slides into the embedding groove. The bottom of the embedding groove has a threaded groove corresponding to the positioning rod 13 and is threadedly connected to the lower end of the positioning rod 13. The threaded lower end of the positioning rod 13 not only serves as a guide but also allows for threaded connection with the lifting rod 5 when needed, enhancing structural stability and preventing damage to items or structural instability due to shaking or displacement. The bottom of the embedding groove has a threaded groove corresponding to the thread at the lower end of the positioning rod 13. When it is necessary to fix the position of the lifting rod 5, the lifting rod 5 can be rotated to make the thread at the lower end of the positioning rod 13 tightly connected with the threaded groove, thereby locking the position of the lifting rod 5 and fixing the height of the base plate 4.

[0029] A movable block 14 is fixedly installed on the top cover 2. The movable block 14 is deformable, and a locking block 15 is fixedly installed on the movable block 14. A positioning groove 16 is fixedly installed on the box body 1, and the locking block 15 is engaged in the positioning groove 16. The movable block 14 has the characteristic of being deformable, which means that it can undergo a certain degree of elastic deformation when subjected to external force, and thus return to its original shape after the external force is removed. This characteristic allows the movable block 14 to adapt to different locking and unlocking requirements. When the top cover 2 is closed, the locking block 15 is engaged in the positioning groove 16 on the box body 1 under the action of the movable block 14, thereby firmly locking the top cover 2 onto the box body 1. The shape and size of the positioning groove 16 match the locking block 15, ensuring that the locking block 15 can be smoothly engaged and firmly fixed in the positioning groove 16, thereby achieving a tight closure between the top cover 2 and the box body 1.

[0030] A mounting base 17 is fixedly installed at the bottom of the box body 1. A lifting mechanism is provided on the mounting base 17, and rollers 18 are slidably installed within the mounting base 17. The rollers 18 are connected to the lifting mechanism. The mounting base 17 not only provides installation space for the rollers 18 but also provides a stable support platform for the lifting mechanism, ensuring that the rollers can rise and fall smoothly and reliably. The lifting mechanism is mounted on the mounting base 17 and connected to the rollers 18. Its main function is to control the lifting height of the rollers 18, thereby switching the plastic box between a moving and stationary state as needed. The presence of the rollers 18 allows the plastic box to slide easily when it needs to be moved, greatly reducing the user's carrying burden. Simultaneously, through the control of the lifting mechanism, the rollers 18 can be retracted when not in use, allowing the plastic box to be placed stably on the ground. The design of the lifting mechanism typically takes into account user habits and ease of operation, allowing users to easily control the lifting height of the rollers 18.

[0031] The lifting mechanism includes a slide groove 19, a connecting block 20, a mounting block 21, and a lifting screw 22. The slide groove 19 is formed on the mounting base 17. The connecting block 20 is fixedly mounted on the roller 18 and slidably connected to the slide groove 19. The mounting block 21 is fixedly mounted on the mounting base 17. The lifting screw 22 is rotatably mounted between the mounting block 21 and the box body 1, and the lifting screw 22 is threadedly connected to the connecting block 20. The slide groove 19 ensures the linear movement of the roller 18 during the lifting process, preventing the roller 18 from deviating or shaking, thereby ensuring the stability of the plastic box when it moves or is stationary. The connecting block 20, as the connecting component between the roller 18 and the lifting mechanism, converts the rotational motion of the lifting screw 22 into the linear lifting motion of the roller 18. At the same time, the sliding of the connecting block 20 within the slide groove 19 also plays a guiding and stabilizing role. Mounting block 21 not only supports one end of lifting screw 22, but also, together with housing 1, forms the rotational support structure for lifting screw 22, ensuring stable rotation of lifting screw 22. Lifting screw 22 is the core component of the lifting mechanism. When the user rotates lifting screw 22, due to the threaded connection between lifting screw 22 and connecting block 20, connecting block 20 will move linearly along the axis of lifting screw 22, thereby driving roller 18 to rise and fall within slide groove 19.

[0032] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0033] The working principle of the portable plastic box provided by this utility model is as follows:

[0034] When using the product, the user first opens the top cover 2 and places the items to be stored in the left and right spaces of the box 1, categorized by type. The partition 3 divides the box 1 into left and right spaces, achieving initial space division, making it convenient for the user to categorize and place items, avoiding item mixing, and facilitating retrieval.

[0035] When it is necessary to store or retrieve items from the left side space, the user can move the base plate 4 up and down by operating the lifting rod 5 to accommodate items of different heights. When the base plate 4 is lifted upwards, the side plate 6 will unfold accordingly, making it easier for the user to remove items from the base plate 4. The limiting mechanism applies a limiting force to the side plate 6 through the traction belt 9 to ensure the stability of the side plate 6 during unfolding and to limit its unfolding angle. When it is necessary to fix the position of the lifting rod 5 and the base plate 4, the user can rotate the lifting rod 5 to make the thread at the lower end of the positioning rod 13 tightly connected with the thread groove, thereby locking the position of the lifting rod 5 and fixing the height of the base plate 4.

[0036] When it is necessary to store or retrieve items in the right-side space, the user only needs to place their finger on the operating block 12 and pull gently to smoothly pull out the storage box 11. This avoids the possibility of slipping or causing inconvenience caused by the user directly grasping the edge of the storage box. After the upper storage box 11 is taken out, items in the lower space can be stored or retrieved.

[0037] A positioning groove 16 is fixedly installed on the box body 1, corresponding to the position of the locking block 15. When the top cover 2 is closed, the locking block 15, driven by the movable block 14, engages with the positioning groove 16 on the box body 1, thereby firmly locking the top cover 2 onto the box body 1. When it is necessary to open the top cover 2, the user can pull the movable block 14 to deform it, thereby causing the locking block 15 to disengage from the positioning groove 16 and releasing the lock. At this time, the top cover 2 can be opened smoothly.

[0038] When the user needs to move the plastic box, the height of the roller 18 can be lowered by rotating the lifting screw 22, so that the roller 18 contacts the ground, allowing the plastic box to slide easily. When the plastic box needs to be placed still, the user can rotate the lifting screw 22 again to raise the height of the roller 18, so that the roller 18 retracts into the mounting base 17, at which point the plastic box can be placed stably on the ground.

[0039] Compared with related technologies, the portable plastic box provided by this utility model has the following advantages:

[0040] This utility model provides a portable plastic box that uses a partition 3 to divide the box into left and right independent spaces, achieving physical isolation and storage of items. This avoids difficulties in retrieving items caused by mixing different types of items, significantly improving space utilization and the convenience of item classification and management. The left space is equipped with a liftable base 4 and a lifting rod structure, allowing users to freely adjust the shelf height according to the height of the items. It is especially suitable for storing items with large height differences, achieving precise adaptation of space utilization.

[0041] A stable structure consisting of limiting blocks 7, fixing blocks 8, and traction straps 9 is adopted. When the side panel 6 is unfolded, the angle is limited by dynamic traction force, which not only ensures the operating space for picking up and putting down items, but also avoids structural instability caused by excessive unfolding of the side panel 6, significantly improving operational safety. The right side space is constructed with a double-layer structure through support blocks 10. The sliding storage box 11, combined with the ergonomic operating block design, enables quick one-handed pulling and putting away of items, which is especially suitable for frequently used small items, improving operational efficiency.

[0042] The engagement between the threaded end of the positioning rod 13 and the internal threaded groove of the lifting rod 5 ensures precise fixation of the height of the base plate 4, preventing items from tipping over or the structure from loosening due to shaking. This is especially suitable for transportation or bumpy environments. The sliding engagement between the slide groove 19 and the connecting block 20 in the lifting mechanism ensures that the roller 18 maintains linear movement during lifting, preventing deviation or jamming and improving overall stability.

[0043] The top cover 2 uses the elastic deformation of the movable block 14 to quickly engage and unlock the locking block 15 and the positioning slot 16. This simple operation requires no additional tools and is especially suitable for scenarios involving frequent opening and closing. The movable block 14 can be made of soft plastic to reduce impact noise during closing and improve the user experience. Users can adjust the height of the rollers 18 by rotating the lifting screw 22, enabling quick switching between moving and stationary states. When the rollers 18 are retracted, the bottom of the box 1 directly contacts the ground, increasing placement stability; when the rollers 18 are lowered, they are easy to push and move, reducing the burden of handling. The surface of the rollers 18 can be made of highly wear-resistant rubber with added anti-slip texture to adapt to different ground conditions.

[0044] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art who understand the principle of the above utility model can clearly understand the specific details of its power mechanism, power supply system and control system.

[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A portable plastic case characterized by, include: A box with a top cover; A partition is fixedly installed inside the box and divides the box into two spaces, left and right. A base plate, which is slidably disposed within the left side space of the box body; A lifting rod is rotatably mounted on the base plate for moving the base plate up and down. A side plate, which is hinged to the base plate and connected to a limiting mechanism provided on the lifting rod; A support block is fixedly installed in the right side space of the box body, dividing the right side space of the box body into upper and lower parts, and a storage box is slidably mounted on the support block.

2. The portable plastic case according to claim 1, wherein The limiting mechanism includes a limiting block, a fixing block, and a traction belt. The limiting block is fixedly installed on the lifting rod, the fixing block is rotatably sleeved on the limiting block, and the traction belt is fixedly installed between the fixing block and the side plate to limit the movement angle of the side plate.

3. The portable plastic case according to claim 1, wherein Operating blocks are fixedly installed on both sides of the inner wall of the opening end of the storage box for removing the storage box from the box body.

4. The portable plastic case according to claim 1, wherein A positioning rod is fixedly installed in the space on the left side of the box. The lower end of the positioning rod is threaded. An embedding groove is opened in the lifting rod. The positioning rod is slidably embedded in the embedding groove. The bottom of the embedding groove is provided with a threaded groove corresponding to the positioning rod and is threadedly connected to the lower end of the positioning rod.

5. The portable plastic case of claim 1, wherein, A movable block is fixedly installed on the top cover. The movable block can deform. A locking block is fixedly installed on the movable block. A positioning groove is fixedly installed on the box body. The locking block is engaged in the positioning groove.

6. The portable plastic case of claim 1, wherein, A mounting base is fixedly installed at the bottom of the box, and a lifting mechanism is provided on the mounting base. A roller is slidably installed inside the mounting base, and the roller is connected to the lifting mechanism.

7. The portable plastic case according to claim 6, wherein The lifting mechanism includes a slide groove, a connecting block, a mounting block, and a lifting screw. The slide groove is formed on the mounting base. The connecting block is fixedly mounted on the roller and slidably connected to the slide groove. The mounting block is fixedly mounted on the mounting base. The lifting screw is rotatably mounted between the mounting block and the housing. The lifting screw is threadedly connected to the connecting block.

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