A combined roto-molding box

The innovative design of the modular rotomolded box solves the problem that the existing rotomolded box structure cannot flexibly adjust the storage space, realizing diversified combination and placement stability of storage space, and meeting diverse item storage needs.

CN224410109UActive Publication Date: 2026-06-26XINGTAI RONGLI MECHANICAL & ELECTRICAL EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINGTAI RONGLI MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
Filing Date
2025-08-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing rotomolded box structure is a fixed design, which cannot flexibly adjust the storage space layout, and lacks adaptability and stability, making it difficult to meet diverse storage needs.

Method used

The basic combination of the box body and the combination cover is combined with the sliding combination of the inner slide rail, the outer slide rail and the sliding frame, the pull-out combination of the horizontal slide rail, the slider and the pull-out plate, and the locking and fixing of the limit rod, spring and limit hole to form a flexible and adjustable storage combination structure. Through the nested combination of the support legs and the telescopic legs, the diverse adaptation of the storage space and the stability of the placement can be achieved.

Benefits of technology

It enables diverse combinations and matching of storage space, meets the needs of hierarchical and classified storage of different items, improves storage flexibility and placement stability, and adapts to the placement needs of different environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to rotational moulding box technical field, concretely relates to a combined rotational moulding box, including box and combined cover, the both sides of box are equipped with inboard slide rail and outboard slide rail respectively, inboard slide rail and outboard slide rail all have the sliding fit of slide frame on, be equipped with horizontal slide rail on the slide frame, the horizontal slide rail is connected with the sliding block of sliding, the sliding block is fixedly connected with the pull -out plate on, be equipped with handle on the pull -out plate, the surface of slide frame is equipped with the docking block, the inner chamber of empty groove sets up the limit rod, this combined rotational moulding box is through the basic combination of box and combined cover, the sliding combination of collocating inboard slide rail, outboard slide rail and slide frame, and the pull -out combination of horizontal slide rail, sliding block and pull -out plate, the effect is to form the storage combination structure of flexible adjustment, effect is to realize the diversified combination adaptation of storage space layout, satisfies the layered classification storage demand of different articles, promotes the storage flexibility.
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Description

Technical Field

[0001] This utility model relates to the field of rotational molding box technology, and more specifically, to a combined rotational molding box. Background Technology

[0002] Rotomolded boxes are widely used in various fields such as industrial storage, outdoor operations, logistics transportation, and household storage due to their impact resistance and strong sealing properties. Different scenarios have different functional requirements: industrial applications require layered storage of parts, outdoor applications require compatibility with different items and stable placement, logistics applications require flexible space adjustment to improve utilization, and household applications require the orderly organization of items of all sizes.

[0003] However, existing rotomolded cases have significant limitations: the storage structure is a fixed, integrated design with non-adjustable partitions, leading to wasted space for large items and confusion for small items; specialized applications require additional storage boxes, increasing cost and complexity; the fixed bottom support legs cannot adapt to uneven surfaces, resulting in unstable stacking and potential hazards, and poor spatial fit during transport; the integrated structure limits combination and expansion, making it easy for multiple cases to slide when stacked, hindering flexible conversion. Furthermore, the integrated structure restricts combination and expansion capabilities, causing multiple cases to slide easily when stacked or placed side-by-side, resulting in insufficient stability; each case has a single function, unable to achieve multi-case or multi-combination conversion, making it difficult to adapt to dynamic storage needs. These shortcomings significantly reduce its adaptability and practicality, necessitating structural innovation to overcome these technical bottlenecks. Utility Model Content

[0004] The purpose of this invention is to provide a modular rotomolded box. This modular rotomolded box, through the basic combination of the box body and the combined lid, combined with the sliding combination of the inner slide rail, the outer slide rail and the sliding frame, and the pull-out combination of the horizontal slide rail, the slider and the pull-out plate, and the locking combination of the limiting rod, the spring and the limiting hole, forms a flexible and adjustable storage combination structure. The effect is to achieve diversified combination and matching of storage space layout, meet the needs of layered and classified storage of different items, and improve storage flexibility. This solves the problem that existing rotomolded boxes are mostly integral fixed structures, lacking flexible combination and adjustment capabilities of each component, and the internal storage structure cannot be changed through component combination, resulting in insufficient adaptability to the storage of different types of items.

[0005] To achieve the above objectives, a modular rotational molding box is provided, comprising a box body and a combined cover. The box body has an inner slide rail and an outer slide rail on each side, and a sliding frame is slidably fitted on both the inner and outer slide rails. A transverse slide rail is provided on the sliding frame, and a slider is slidably connected to the transverse slide rail. A pull-out plate is fixedly connected to the slider, and a handle is provided on the pull-out plate. A mating block is provided on the surface of the sliding frame, and a slot is formed in the inner cavity of the mating block. A limit rod is provided in the inner cavity of the slot, and a baffle is fixed in the slot. A spring is connected to the baffle, and the end of the spring away from the baffle is connected to the limit rod. A limit hole is provided on the inner slide rail corresponding to the limit rod, and the limit rod engages with the limit hole. A pull ring is provided on the limit rod. Support legs are provided at the bottom of the box body, and telescopic legs are provided within the support legs.

[0006] As a further improvement to this technical solution, the sliding frame slides horizontally along the length direction of the inner or outer slide rail.

[0007] As a further improvement to this technical solution, the pull-out plate slides along the transverse slide rail via a slider, and its sliding direction is perpendicular to the sliding direction of the sliding frame.

[0008] As a further improvement to this technical solution, when the spring is in its natural state, the end of the limiting rod away from the spring extends out of the slot and is engaged in the limiting hole.

[0009] As a further improvement to this technical solution, multiple limiting holes are provided at intervals along the length direction of the inner and outer slide rails.

[0010] As a further improvement to this technical solution, the bottom of the box is provided with multiple support legs, the telescopic legs are slidably disposed inside the support legs, and the telescopic legs can extend and retract along the length direction of the support legs.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. In this modular rotomolded box, the basic combination of the box body and the combination cover, combined with the sliding combination of the inner slide rail, the outer slide rail and the sliding frame, and the pull-out combination of the horizontal slide rail, the slider and the pull-out plate, and the snap-fit ​​combination of the limiting rod, the spring and the limiting hole, the function is to form a flexible and adjustable storage combination structure. The effect is to realize the diversified combination and matching of storage space layout, meet the layered and classified storage needs of different items, and improve storage flexibility.

[0013] 2. In this type of modular rotomolded box, the bottom of the box adopts a nested combination structure of support legs and telescopic legs. The function is to form an adjustable support combination through the telescopic cooperation of the two. The effect is to flexibly adjust the support height according to the placement environment, enhance the stability of the box on different ground surfaces, and expand the applicable scenarios of the modular rotomolded box. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the box body of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the pull-out plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the outer slide rail of this utility model;

[0018] Figure 5 This is a cross-sectional view of the docking block structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the combined cover and the box body of this utility model.

[0020] In the diagram: 1. Box body; 2. Combination cover; 3. Inner slide rail; 4. Outer slide rail; 5. Limiting hole; 6. Sliding frame; 7. Horizontal slide rail; 8. Slider; 9. Pull-out plate; 10. Handle; 11. Connecting block; 12. Limiting rod; 13. Pull ring; 14. Hollow groove; 15. Baffle; 16. Spring; 17. Support leg; 18. Telescopic leg. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] This utility model embodiment provides a combined rotomolding box, which includes the following solutions:

[0025] Please see Figures 1-6 As shown, it includes a box body 1 and a combination cover 2. Through the combination and cooperation of multiple components, it can achieve flexible storage and stable placement. The specific functions and effects of each structure are as follows:

[0026] The housing 1 serves as the basic load-bearing structure, providing an installation frame for the overall equipment. It has an inner slide rail 3 and an outer slide rail 4 on its two sides, respectively. The groove structure of the slide rail provides a stable sliding track for the sliding frame 6. The sliding frame 6 slides horizontally along the length of the inner slide rail 3 or the outer slide rail 4. This sliding fit allows the sliding frame 6 to flexibly adjust its longitudinal position on both sides of the housing 1. This is because the guiding effect of the slide rail restricts the movement direction of the sliding frame 6, allowing it to only move horizontally along the length of the slide rail, thus providing basic positional support for subsequent adjustments to the storage space.

[0027] The sliding frame 6 is equipped with a horizontal slide rail 7, and a slider 8 is slidably connected to the horizontal slide rail 7. A pull-out plate 9 is fixedly connected to the slider 8, and a handle 10 is provided on the pull-out plate 9. The pull-out plate 9 slides along the horizontal slide rail 7 via the slider 8, and its sliding direction is perpendicular to the sliding direction of the sliding frame 6. The cooperation between the horizontal slide rail 7 and the slider 8 provides a horizontal movement track for the pull-out plate 9. The vertical design of the sliding direction allows the pull-out plate 9 to adjust its position along the longitudinal direction of the box 1 with the sliding frame 6, and to extend or retract from the box 1 independently in the lateral direction. This is because the vertical sliding does not interfere with each other. The spatial layout of the pull-out plate 9 can be changed by adjusting its position in the longitudinal and lateral directions, thereby realizing the flexible division of the internal storage space of the box 1 and meeting the needs of layered placement of items of different sizes. The handle 10 provides a force point for the sliding operation of the pull-out plate 9, improving the ease of operation.

[0028] The sliding frame 6 has a docking block 11 on its surface. The inner cavity of the docking block 11 has a slot 14. A limit rod 12 is installed inside the slot 14. A baffle 15 is fixed inside the slot 14, and a spring 16 is connected to the baffle 15. The end of the spring 16 away from the baffle 15 is connected to the limit rod 12. A limit hole 5 is provided on the inner slide rail 3 corresponding to the limit rod 12. The limit rod 12 engages with the limit hole 5. A pull ring 13 is provided on the limit rod 12. When the spring 16 is in its natural state, the end of the limit rod 12 away from the spring 16 extends out of the slot 14 and engages with the limit hole 5. This is because the elastic force of the spring 16 pushes the limit rod 12 away from the baffle 15 until... Its end is inserted into the limiting hole 5. At this time, the relative position of the sliding frame 6 and the slide rail is fixed, which prevents the sliding frame 6 from accidentally sliding due to external force when carrying items. When it is necessary to adjust the position of the sliding frame 6, the limiting rod 12 is pulled by the pull ring 13 to compress the spring 16, so that the limiting rod 12 is disengaged from the limiting hole 5 and the sliding frame 6 can be unlocked. The operation is convenient. At the same time, the limiting hole 5 is provided with multiple holes along the length direction of the inner slide rail 3 and the outer slide rail 4. The multiple limiting holes 5 provide multiple fixing points for the sliding frame 6. The reason is that different points correspond to different longitudinal positions of the sliding frame 6, thereby allowing the pull-out plate 9 to adjust the layout within a larger range and further improving the adaptability of the storage space.

[0029] The bottom of the box 1 is provided with multiple support legs 17, and telescopic legs 18 are provided inside the support legs 17. The telescopic legs 18 can extend and retract along the length of the support legs 17. The multiple support legs 17 distribute the weight of the box 1 and the contents inside, improving the overall stability of the placement. The nested structure of the telescopic legs 18 and the support legs 17 allows the telescopic legs 18 to change their extension length by sliding. This is because the nesting provides a track for adjusting the length of the telescopic legs 18. By adjusting the extension length of the telescopic legs 18 inside different support legs 17, the tilting effect caused by uneven ground can be offset, ensuring the levelness and stability of the box 1 when placed.

[0030] Working principle:

[0031] When the storage space needs to be adjusted, first pull the limiting rod 12 through the pull ring 13. The limiting rod 12 compresses the spring 16 and retracts into the slot 14 of the docking block 11, releasing the locking and fixing with the limiting hole 5. Then push the sliding frame 6 so that it slides horizontally along the length of the inner slide rail 3 or the outer slide rail 4 to the target position. Release the pull ring 13, the spring 16 returns to its natural state and pushes the limiting rod 12 out of the slot 14, and re-locks into the corresponding limiting hole 5, completing the position fixing of the sliding frame 6. If it is necessary to further adjust the angle of picking up and putting down items, the pull plate 9 can be pulled through the handle 10 so that the pull plate 9 slides along the horizontal slide rail 7 through the slider 8. The sliding direction of the pull plate 9 is perpendicular to the sliding direction of the sliding frame 6, and the pull plate 9 can be partially or completely pulled out of the box 1 for convenient placement and retrieval of items.

[0032] When the box 1 needs to be placed on an uneven ground, the extension length of the telescopic legs 18 inside each support leg 17 can be adjusted: extending the telescopic legs 18 can increase the height of the corresponding support leg 17, and shortening the telescopic legs 18 can decrease the height of the corresponding support leg 17. Through the height coordination of multiple support legs 17, the box 1 can be kept in a horizontal and stable state. The combination cover 2 covers the top of the box 1 to protect and seal the internal items. Through the synergistic effect of sliding fit, snap-fit ​​fixation and telescopic adjustment, the various structures can achieve the functions of flexible adaptation of storage space and stable placement.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A modular rotational molding box, characterized in that: The device includes a housing (1) and a combined cover (2). The housing (1) has an inner slide rail (3) and an outer slide rail (4) on both sides. A sliding frame (6) is slidably fitted on both the inner slide rail (3) and the outer slide rail (4). A transverse slide rail (7) is provided on the transverse slide rail (7). A slider (8) is slidably connected on the transverse slide rail (7). A pull plate (9) is fixedly connected to the slider (8). A handle (10) is provided on the pull plate (9). A mating block (11) is provided on the surface of the sliding frame (6). A slot (14) is opened in the inner cavity of the mating block (11). The inner cavity of the slot (14) is provided with a limiting rod (12), and a baffle (15) is fixed inside the slot (14). A spring (16) is connected to the baffle (15). The end of the spring (16) away from the baffle (15) is connected to the limiting rod (12). A limiting hole (5) is provided on the inner slide rail (3) corresponding to the limiting rod (12). The limiting rod (12) is engaged with the limiting hole (5). A pull ring (13) is provided on the limiting rod (12). The bottom of the box (1) is provided with a support leg (17), and a telescopic leg (18) is provided inside the support leg (17).

2. The combined rotational molding box according to claim 1, characterized in that: The sliding frame (6) slides horizontally along the length of the inner slide rail (3) or the outer slide rail (4).

3. The combined rotational molding box according to claim 2, characterized in that: The pull-out plate (9) slides along the transverse slide rail (7) via the slider (8), and its sliding direction is perpendicular to the sliding direction of the sliding frame (6).

4. The combined rotational molding box according to claim 3, characterized in that: When the spring (16) is in its natural state, the end of the limiting rod (12) away from the spring (16) extends out of the slot (14) and is inserted into the limiting hole (5).

5. The combined rotational molding box according to claim 4, characterized in that: The limiting holes (5) are provided in multiple intervals along the length direction of the inner slide rail (3) and the outer slide rail (4).

6. The combined rotational molding box according to claim 1, characterized in that: The bottom of the box (1) has multiple support legs (17), and the telescopic leg (18) is slidably disposed in the support leg (17), and the telescopic leg (18) can extend and retract along the length direction of the support leg (17).