A refrigerated box for easy handling of yak meat
By using a composite insulation structure of vacuum insulation panels and foam layers, along with a removable sealing cap design, the problem of unstable temperature in traditional refrigerated boxes under extreme environments has been solved, enabling efficient and safe long-distance transportation of yak meat in refrigerated boxes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGHAI 5369 ECOLOGICAL ANIMAL HUSBANDRY TECH CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional refrigerators struggle to maintain stable temperatures over extended periods in extreme environments, leading to cold loss that impacts food safety and quality. Furthermore, increasing the thickness of the foam layer results in bulky containers that occupy a large amount of space, making them less economical.
It adopts a composite insulation structure of vacuum insulation board and foam layer, combined with a removable sealing cover and positioning protrusion design to achieve efficient insulation, flexible partitioned storage and reliable stacking, and temperature is monitored by temperature-sensitive labels.
It significantly reduces thermal conductivity, extends cold-keeping time, prevents cold air leakage, improves loading safety and space utilization, and ensures food hygiene and safety and cold chain integrity.
Smart Images

Figure CN224448617U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold chain logistics equipment technology, and in particular to a refrigerated box for yak meat that is easy to handle. Background Technology
[0002] In the cold chain logistics sector, especially during the handling of fresh food in high-altitude areas or over long distances, maintaining a low-temperature environment and preventing temperature fluctuations are crucial. Traditional refrigerated boxes typically use polyurethane foam as the insulation layer. While this provides some insulation, its performance is often insufficient for prolonged cold storage in extreme environments. Currently, most commercial refrigerated boxes commonly use polyurethane (PU) or polystyrene (EPS) foam as the main insulation layer. Although these materials are low-cost and easy to process, in environments with large temperature differences, heat can be rapidly conducted through the box walls into the interior, leading to significant internal temperature fluctuations.
[0003] Especially in high-altitude, long-distance transportation scenarios, where external environmental temperatures fluctuate drastically and transportation time often exceeds 24 hours, traditional foam materials struggle to maintain a stable internal temperature within the safe refrigeration range of 0–4°C. Continuous loss of cold air not only shortens the insulation time but can also lead to premature thawing of meat and bacterial growth, seriously impacting food safety and quality. Furthermore, the insulation performance of the foam layer is limited by its density and thickness. Simply increasing the foam layer thickness to improve insulation results in a bulky, space-consuming container, hindering loading and handling, and significantly reducing its economic efficiency and practicality.
[0004] Therefore, it is necessary to design a refrigerated box for yak meat that is easy to handle, in order to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to overcome the shortcomings of traditional foam materials, which have limited heat preservation effect and cannot meet the long-term cold preservation requirements in extreme environments, this utility model provides a yak meat cold storage box that is easy to transport.
[0006] The technical implementation scheme of this utility model is as follows: a yak meat refrigeration box that is easy to transport includes a box body, a positioning protrusion, a sealing cover, an inner liner, a vacuum insulation board and a foam layer. The positioning protrusion is fixedly connected to the bottom of the box body, and the sealing cover is detachably connected to the top of the box body. The top of the sealing cover has a groove that matches the positioning protrusion. The inner liner is provided inside the box body. The box body consists of a vacuum insulation board, a foam layer and an inner liner from the outside to the inside. The vacuum insulation board is attached to the inner wall of the box body, and the foam layer fills the gap between the vacuum insulation board and the inner liner. The sealing cover includes a vacuum insulation board and a foam layer. The vacuum insulation board is attached to the inner wall of the sealing cover, and the gap is filled by the foam layer.
[0007] In one embodiment, the device also includes a locking block and a buckle. The locking blocks are fixedly connected to the front and rear sides of the sealing cover, and buckles are provided on the front and rear side walls of the box at the positions corresponding to the locking blocks.
[0008] In one embodiment, the cover also includes a handle and a carrying handle, with handles fixedly connected to the left and right sides of the sealing cover and a carrying handle provided in the middle of the top.
[0009] In one embodiment, a sealing strip is also included, with the sealing strip located on the top periphery of the inner sealing cover, and the sealing strip is tightly fitted to the top opening of the box.
[0010] In one embodiment, it also includes limiting blocks and partition plates. Multiple limiting blocks with evenly spaced intervals are fixedly connected to the inner walls of the front and rear sides of the inner liner, and multiple partition plates are vertically slidably connected inside the inner liner.
[0011] In one embodiment, a temperature-sensitive label is also included, which is located on the front of the box and changes color with temperature.
[0012] Beneficial effects: 1. This utility model sets up a composite insulation structure consisting of a vacuum insulation board and a foam layer in the box and the sealing cover. The vacuum insulation board is attached to the inner wall of the box and the foam layer fills the gap between it and the inner liner. This significantly reduces the thermal conductivity of the box and reduces the loss of cold air, thereby improving the insulation performance and extending the cold preservation time. It is especially suitable for the cold chain turnover of yak meat in long-distance environments.
[0013] 2. This utility model uses a vertically sliding partition plate inside the inner liner, along with evenly spaced limiting blocks on the front and rear side walls, to achieve multi-level positioning. This allows the operator to flexibly adjust the storage space according to the different types and specifications of yak meat, achieving the effects of partitioned storage, preventing cross-contamination, and improving food hygiene and safety as well as turnover management efficiency.
[0014] 3. This utility model achieves reliable locking of the sealing cover by setting a positioning protrusion at the bottom of the box and opening a matching groove on the top of the sealing cover, combined with the locking structure of the locking block and the buckle. It also enables precise stacking of multiple boxes with the help of the positioning protrusion and the groove, effectively preventing slippage and tipping during transportation, and improving loading safety and space utilization. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a structural schematic diagram of the box body, inner liner, and partition plate of this utility model.
[0017] Figure 3 This is a structural schematic diagram of the limiting block, sealing cover, and positioning protrusion of this utility model.
[0018] Figure 4 This is a structural diagram of the inner liner, buckle, and temperature-sensitive label components of this utility model.
[0019] Figure 5 This is a partial cross-sectional structural diagram of the handle, grip, and foam layer components of this utility model.
[0020] The markings in the diagram are: 1-box body, 2-vacuum insulation board, 3-foaming layer, 4-inner liner, 5-partition plate, 6-limiting block, 7-sealing cover, 8-positioning protrusion, 9-groove, 10-block, 11-buckle, 12-handle, 13-lifting handle, 14-temperature sensitive label, 15-sealing strip. Detailed Implementation
[0021] Example: A refrigerated box for easy handling of yak meat, such as... Figures 1-5 As shown, the enclosure includes a housing 1, a positioning protrusion 8, a sealing cover 7, an inner liner 4, a vacuum insulation board 2, and a foam layer 3. The bottom of the housing 1 is integrally connected to the positioning protrusion 8, and the top of the housing 1 is detachably connected to the sealing cover 7. The top of the sealing cover 7 has a groove 9 that matches the positioning protrusion 8. The inner liner 4 is provided inside the housing 1. The housing 1 consists of a vacuum insulation board 2, a foam layer 3, and an inner liner 4 from the outside to the inside. The vacuum insulation board 2 is attached to the inner wall of the housing 1, and the foam layer 3 fills the gap between the vacuum insulation board 2 and the inner liner 4. The sealing cover 7 includes the vacuum insulation board 2 and the foam layer 3. The inner wall of the sealing cover 7 is attached to the vacuum insulation board 2, and its gap is filled by the foam layer 3.
[0022] like Figures 1-5 As shown, it also includes a locking block 10, a buckle 11, a handle 12 and a lifting handle 13. The front and rear sides of the sealing cover 7 are connected to the locking block 10 by bolts. The front and rear side walls of the box body 1 are provided with buckles 11 corresponding to the locking block 10. The left and right sides of the sealing cover 7 are connected to the handle 12 by bolts, and the top center is provided with a lifting handle 13.
[0023] like Figures 1-5 As shown, it also includes limit blocks 6, partition plates 5, sealing strips 15 and temperature-sensitive labels 14. The inner walls of the front and rear sides of the inner liner 4 are connected by multiple evenly spaced limit blocks 6 in an integral molding manner. Multiple partition plates 5 are vertically slidably connected inside the inner liner 4. A sealing strip 15 is provided on the outer periphery of the top of the sealing cover 7. The sealing strip 15 is tightly fitted to the top opening of the box body 1. A temperature-sensitive label 14 is provided on the front side of the box body 1. The temperature-sensitive label 14 changes color with temperature.
[0024] Operators can apply the corresponding technical solutions in this device to technical fields that require efficient heat preservation and zoned management, such as high-altitude cold chain food turnover, long-distance transportation of fresh meat products, or cold storage distribution of pharmaceuticals, depending on the specific circumstances.
[0025] When this device is needed to assist in the sorting, refrigeration, and long-distance transport of yak meat, firstly, the container must be pre-cooled to the target temperature (0-4℃) before loading the yak meat. Then, the pre-cooled yak meat is sorted by part or batch and placed into the inner liner 4 of the refrigerated container. Subsequently, the position of the partition plates 5 inside the inner liner 4 is adjusted according to the size of the goods and the separation requirements. By vertically inserting the partition plates 5 between the limiting blocks 6 and utilizing the even distribution of the limiting blocks 6, multi-level positioning is achieved, thereby flexibly dividing the storage space and avoiding cross-contamination between different categories.
[0026] Next, the sorted yak meat is placed into each of the separate areas in turn, ensuring that the loading is even and not overloaded. Then, the sealing cover 7 is aligned with the top of the box 1 and closed, so that the locking block 10 on the sealing cover 7 corresponds to and is locked with the buckle 11 on the front and rear side walls of the box 1, thus fixing the structure. During the closing process, the sealing strip 15 at the top of the inner part of the sealing cover 7 is pressed tightly against the upper edge of the inner liner 4, forming a well-sealed environment with good airtightness, effectively preventing cold air from leaking out and external hot air from entering.
[0027] To enable multi-box stacking transportation, the operator can align the positioning protrusion 8 on the bottom of this refrigerated box with the groove 9 on the top of the sealing cover 7 of another refrigerated box below, and press down vertically to complete the positioning and fitting, ensuring that each box 1 is aligned and stable during stacking, and preventing slippage, tipping or stress concentration during transportation that could cause deformation of the box 1.
[0028] Throughout the entire turnover process, the composite insulation structure consisting of vacuum insulation panels 2, foam layers 3, and inner liner 4 on the side and bottom walls of the box 1 continues to play a role. Vacuum insulation panels 2, as the core insulation layer, significantly reduce the thermal conductivity coefficient. Foam layers 3 fill the gaps and edge areas of the vacuum insulation panels 2 to eliminate the "cold bridge" effect. Vacuum insulation panels significantly reduce thermal conductivity, and foam layers eliminate cold bridges and prevent moisture. Vacuum insulation panels 2 are also installed inside the sealing cover 7, and the gaps are filled by foam layers 3 to ensure that the top insulation performance is consistent with that of the box 1. The whole system achieves efficient and long-lasting cold preservation, meeting the cold chain requirements of more than 48 hours.
[0029] In addition, the operator can monitor the internal temperature in real time by observing the temperature-sensitive label 14 affixed to the front of the box 1. When the temperature-sensitive label 14 turns red, it indicates that the temperature exceeds the safety threshold, and remedial measures can be taken in time or the goods can be rejected, thereby effectively ensuring the quality and safety of yak meat and the integrity of the cold chain.
[0030] In summary, this device provides a practical and scalable technical solution for the efficient and safe turnover of high-value-added fresh food through its structured insulation design, modular zoning management, reliable sealing and stacking mechanisms, and visualized temperature monitoring.
Claims
1. A yak meat cold storage box for facilitating turnover, characterized in that, The box includes a housing (1), a positioning protrusion (8), a sealing cover (7), an inner liner (4), a vacuum insulation board (2), and a foam layer (3). The bottom of the housing (1) is fixedly connected to the positioning protrusion (8), and the top of the housing (1) is detachably connected to the sealing cover (7). The top of the sealing cover (7) has a groove (9) that matches the positioning protrusion (8). The inner liner (4) is provided inside the housing (1). The housing (1) consists of a vacuum insulation board (2), a foam layer (3), and an inner liner (4) from the outside to the inside. The vacuum insulation board (2) is attached to the inner wall of the housing (1), and the foam layer (3) fills the gap between the vacuum insulation board (2) and the inner liner (4). The sealing cover (7) includes a vacuum insulation board (2) and a foam layer (3). The inner wall of the sealing cover (7) is attached to the vacuum insulation board (2), and its gap is filled by the foam layer (3).
2. A yak meat cold storage box for facilitating the turnover according to claim 1, characterized in that, It also includes a locking block (10) and a buckle (11). The front and rear sides of the sealing cover (7) are fixedly connected with the locking block (10), and the front and rear side walls of the box body (1) are provided with buckles (11) corresponding to the locking block (10).
3. A yak meat cold storage box for facilitating the turnover according to claim 2, characterized in that, It also includes a handle (12) and a carrying handle (13). The sealing cover (7) is fixedly connected to the handle (12) on the left and right sides, and a carrying handle (13) is provided in the middle of the top.
4. A yak meat cold storage box for facilitating the turnover according to claim 3, characterized in that, It also includes a sealing strip (15), and the sealing cover (7) is provided with a sealing strip (15) on the outer periphery of the top, and the sealing strip (15) is tightly fitted to the top opening of the box (1).
5. A refrigerated box for yak meat that is easy to handle according to claim 4, characterized in that, It also includes limit blocks (6) and partition plates (5). Multiple limit blocks (6) are fixedly connected to the inner walls of the front and rear sides of the inner liner (4) at even intervals. Multiple partition plates (5) are vertically slidably connected inside the inner liner (4).
6. A yak meat cold storage box for facilitating the turnover according to claim 5, characterized in that, It also includes a temperature-sensitive label (14), which is provided on the front side of the box (1). The temperature-sensitive label (14) changes color with temperature.