Multilayer cold chain preservation box structure
By designing the delivery pipes and connecting pipes, and combining them with the partitioning mechanism, the multi-layer cold chain preservation box structure achieves all-round cold air circulation, solving the problem of incomplete cold air envelopment in existing technologies and improving the preservation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN MINAN CATERING MANAGEMENT CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-19
AI Technical Summary
Existing multi-layer cold chain food storage boxes cannot achieve full-body cold air envelopment, resulting in increased temperature at the edges and corners of items and shortened shelf life.
A multi-layer cold chain food storage box structure was designed. Through the combination of delivery pipes and connecting pipes, the cold air from the ice pack is delivered in two ways: one way sprays the top of the item, and the other way rises through the filter plate to fill the upper space. Combined with the partition mechanism, it achieves all-round cold air circulation.
It achieves end-to-end cold chain preservation of goods, with continuous circulation of cold air to ensure that goods remain at a low temperature throughout the transportation process, thus improving the preservation effect.
Smart Images

Figure CN224376511U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold chain preservation technology, and in particular to a multi-layer cold chain preservation box structure. Background Technology
[0002] Multi-layer cold chain storage boxes are structures used to preserve items that require cold chain transportation or storage. Through multiple partitions and a cold air circulation system, they provide a low-temperature environment to extend the shelf life of the items. Their main purpose is to maintain the freshness and quality of items during transportation or storage, and they are suitable for items requiring low-temperature preservation, such as food, medicine, and biological samples.
[0003] A typical multi-layer cold chain food storage box consists of a placement mechanism, a support mechanism, and ice pack compartments. During use, the placement mechanism, through the cooperation of a rotating plate and locking components, ensures stable storage and convenient replacement of ice packs, providing a continuous cold source for the inside of the box. The support mechanism flexibly divides the box space into multiple layers, and the ice pack compartments, through the cooperation of a filter plate and a conveying pipe, allow the cold air released by the ice packs to circulate within the box.
[0004] However, some existing devices can only release cold air from one direction, resulting in items only being surrounded by localized cold air and failing to create a comprehensive low-temperature environment. This leads to unsatisfactory preservation effects, especially during transportation, where the edges and corners of items are prone to temperature increases and shortened shelf life due to insufficient contact with cold air. To address these issues, a multi-layer cold chain preservation box structure is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a multi-layer cold chain preservation box structure, which aims to improve the problem that some existing devices cannot completely surround and preserve the objects inside the box with cold air.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A multi-layer cold chain food storage box structure includes a box body, a placement mechanism provided on the inner bottom wall of the box body, a filter plate fixedly connected inside the box body, and a partition mechanism provided inside the box body, on the side closest to the filter plate.
[0008] The placement mechanism includes a rotating plate, which is rotatably connected to the front of the outer side of the box. A locking assembly is slidably connected inside the rotating plate. Two conveying pipes are fixedly connected to both sides of the inner wall of the box. A top plate is fixedly connected to the top of the box. A docking block is fixedly connected to both sides of the bottom of the top plate. A connecting pipe is fixedly connected to the adjacent outer side of the two docking blocks.
[0009] As a further description of the above technical solution:
[0010] The engaging assembly includes a sliding plate, the outer side of which is slidably connected to the front outer side of the box body, and the outer side of which is slidably connected to the inside of the rotating plate. A sliding groove is provided on the front outer side of the box body, and the outer side of the sliding plate is slidably connected to the inside of the sliding groove.
[0011] As a further description of the above technical solution:
[0012] The partition mechanism includes two support rods, which are externally fixedly connected to both sides of the inner wall of the box, and the two support rods have multiple sliding grooves inside.
[0013] As a further description of the above technical solution:
[0014] The top of the two support rods is provided with multiple docking holes, and docking rods are slidably connected inside the multiple docking holes;
[0015] As a further description of the above technical solution:
[0016] A connecting rod is fixedly connected to the top of the connecting rod, and a support rod is fixedly connected to the bottom of the connecting rod;
[0017] As a further description of the above technical solution:
[0018] The support rod is slidably connected to the inside of the slide groove, and a baffle is fixedly connected to one side of the support rod.
[0019] As a further description of the above technical solution:
[0020] The interior of the docking block is interconnected with the interior of the connecting pipe, and the interior of the docking block is slidably connected to the top of the conveying pipe.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this invention, part of the cold air released from the ice pack enters the conveying pipe, passes through the docking block and connecting pipe, and is sprayed out from the holes to surround the top of the item. The remaining cold air rises through the filter plate and fills the upper space. The items are placed in layers within the spaces formed by the separating mechanism, and the cold air continuously circulates, surrounding the items from all directions to achieve end-to-end cold chain preservation.
[0023] 2. In this utility model, the support rod and the sliding groove cooperate, and the connecting rod and the connecting hole engage, so that the support rod and the connecting rod are stably maintained in the current position, and the baffle is fixed accordingly, dividing the inside of the box into different areas, improving the convenience of use and enhancing the practicality of the food storage box. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of the multi-layer cold chain food preservation box structure proposed in this utility model.
[0025] Figure 2 This is a schematic diagram of the connecting rod of the multi-layer cold chain food preservation box structure proposed in this utility model.
[0026] Figure 3 This is a schematic diagram of the connecting block of the multi-layer cold chain food preservation box structure proposed in this utility model.
[0027] Figure 4 This is a schematic diagram of the baffle of the multi-layer cold chain food preservation box structure proposed in this utility model.
[0028] Legend:
[0029] 1. Box body; 2. Placement mechanism; 21. Rotating plate; 22. Engaging assembly; 221. Sliding plate; 222. Sliding groove; 23. Conveying pipe; 24. Connecting block; 25. Top plate; 26. Connecting pipe; 3. Filter plate; 4. Separating mechanism; 41. Support rod; 42. Sliding groove; 43. Connecting hole; 44. Connecting rod; 45. Connecting rod; 46. Support rod; 47. Baffle. Detailed Implementation
[0030] 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.
[0031] Reference Figures 1 to 3 The present invention provides an embodiment of a multi-layer cold chain preservation box structure, including a box body 1, which is designed to hold items that need to be preserved. The inner bottom wall of the box body 1 is provided with a placement mechanism 2. A filter plate 3 is fixedly connected inside the box body 1, which is designed to provide conveying capacity. At the same time, the filter plate 3 can divide the box body 1 into two parts, with the upper part being the space for placing items and the lower part being the ice pack required for cold chain preservation. A partition mechanism 4 is provided inside the box body 1, on the side near the filter plate 3.
[0032] The placement mechanism 2 includes a rotating plate 21, designed to provide shielding and a good space for storing ice packs in the lower part. The rotating plate 21 is externally rotatably connected to the front of the box body 1. A locking assembly 22 is slidably connected inside the rotating plate 21. The locking assembly 22 includes a sliding plate 221, designed to provide sliding capability and limit the rotation of the rotating plate 21 to prevent rotation. The sliding plate 221 is externally slidably connected to the front of the box body 1 and also externally slidably connected to the interior of the rotating plate 21. A sliding groove 222 is provided on the front of the box body 1, designed to provide sliding space for the sliding plate 221 to slide smoothly. The sliding plate 221 is externally slidably connected to the interior of the sliding groove 222. Two conveying pipes 23 are fixedly connected to both sides of the inner wall of the box body 1, designed to provide... The conveying capacity allows some of the cold air emitted by the ice pack to be conveyed into the conveying tube 23, while the remaining cold air is conveyed to the top of the filter plate 3 through the holes inside the filter plate 3. The top of the box 1 is fixedly connected to the top plate 25, which is designed to provide good protection for the item. The bottom two sides of the top plate 25 are fixedly connected to the docking blocks 24, which are designed to provide docking capacity, allowing the cold air inside the conveying tube 23 to be conveyed. The outer adjacent sides of the two docking blocks 24 are fixedly connected to the connecting tube 26, which is designed to provide output capacity, allowing the cold air drawn out by the docking blocks 24 to be conveyed to the top of the object through the holes of the connecting tube 26, so that the cold air can be well surrounded by the object. The interior of the docking block 24 and the interior of the connecting tube 26 are interconnected, and the interior of the docking block 24 is slidably connected to the top of the conveying tube 23.
[0033] Reference Figure 2 and Figure 4The partition mechanism 4 includes two support rods 41, designed to provide support and allow them to be placed laterally on opposite sides of the inner wall of the box 1. The two support rods 41 are externally fixed to both sides of the inner wall of the box 1. The interior of the two support rods 41 has multiple sliding grooves 42, designed to provide sliding space. The top of the two support rods 41 has multiple mating holes 43, designed to provide mating capability. The interior of the multiple mating holes 43 is slidably connected to mating rods 44, designed to provide locking capability, allowing sliding within the mating holes 43. The top of the docking rod 44 is fixedly connected to a connecting rod 45, which is designed to provide connection capability. The bottom of the connecting rod 45 is fixedly connected to a support rod 46. When connected by the connecting rod 45, the docking rod 44 and the support rod 46 can move together. The outside of the support rod 46 is slidably connected to the inside of the slide groove 42. A baffle 47 is fixedly connected to one side of the support rod 46, which is designed to provide separation capability. This allows the docking rod 44 and the support rod 46 to slide and engage with the docking holes 43 and the slide groove 42 at different positions through the connecting rod 45, thus providing different sizes of space for separation.
[0034] Working principle: The ice pack is placed in the lower cavity of the box 1. After the rotating plate 21 is closed, it is locked by the sliding plate 221, and the ice pack continues to release cold air. The cold air is split into two upward paths: one path goes through the conveying pipe 23 and the docking block 24 into the connecting pipe 26, and is evenly sprayed onto the top of the items through the holes; the other path rises through the holes of the filter plate 3, filling the upper space. Surrounded by cold air from both above and below, the entire process achieves cold chain preservation. When the cold air from the ice pack weakens, the rotating plate 21 is opened to replace the ice pack, continuing to maintain the preservation environment. Throughout the process, the cold air circulates continuously, ensuring that the items remain at a low temperature during transportation.
[0035] When the partition mechanism 4 is needed to divide the internal space of the box 1, the position of the connecting rod 45 is first adjusted according to the required size of the partitioned space. The connecting rod 45 drives the docking rod 44 to slide within the docking hole 43, while the support rod 46 slides within the sliding groove 42. When the support rod 46 slides to the appropriate position, due to the cooperation between the support rod 46 and the sliding groove 42, and the engagement of the docking rod 44 and the docking hole 43, the support rod 46 and the docking rod 44 can be stably maintained in the current position. At this time, the baffle 47 is also fixed in the corresponding position, dividing the internal space of the box 1 into different areas. If it is necessary to change the size of the partitioned space, simply move the connecting rod 45 again, driving the docking rod 44 and the support rod 46 to slide to the new position within the docking hole 43 and the sliding groove 42, and re-engage to achieve the re-division of the space.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-layer cold chain preservation box structure comprising a box body (1), characterized in that: The inner bottom wall of the box (1) is provided with a placement mechanism (2), and a filter plate (3) is fixedly connected inside the box (1). A partition mechanism (4) is provided inside the box (1) on the side close to the filter plate (3). The placement mechanism (2) includes a rotating plate (21), which is rotatably connected to the front of the outer side of the box body (1). The rotating plate (21) is slidably connected to a locking assembly (22). Two conveying pipes (23) are fixedly connected to both sides of the inner wall of the box body (1). A top plate (25) is fixedly connected to the top of the box body (1). A docking block (24) is fixedly connected to both sides of the bottom of the top plate (25). A connecting pipe (26) is fixedly connected to the adjacent outer side of the two docking blocks (24).
2. The multi-layer cold chain food storage box structure according to claim 1, characterized in that: The engaging assembly (22) includes a sliding plate (221), which is slidably connected to the front side of the outer side of the box (1) and to the inside of the rotating plate (21). A sliding groove (222) is provided on the front side of the outer side of the box (1), and the sliding plate (221) is slidably connected to the inside of the sliding groove (222).
3. The multi-layer cold chain food storage box structure according to claim 1, characterized in that: The separation mechanism (4) includes two support rods (41), which are fixedly connected to the outer sides of the inner wall of the box (1), and multiple sliding grooves (42) are opened inside the two support rods (41).
4. The multi-layer cold chain food storage box structure according to claim 3, characterized in that: The top of the two support rods (41) is provided with a plurality of docking holes (43), and docking rods (44) are slidably connected inside the plurality of docking holes (43).
5. The multi-layer cold chain food storage box structure according to claim 4, characterized in that: The top of the connecting rod (44) is fixedly connected to a connecting rod (45), and the bottom of the connecting rod (45) is fixedly connected to a support rod (46).
6. The multi-layer cold chain food storage box structure according to claim 5, characterized in that: The support rod (46) is slidably connected to the inside of the slide groove (42), and a baffle (47) is fixedly connected to the outer side of the support rod (46).
7. The multi-layer cold chain food storage box structure according to claim 1, characterized in that: The interior of the docking block (24) is in communication with the interior of the connecting pipe (26), and the interior of the docking block (24) is slidably connected to the top of the conveying pipe (23).