Multifunctional food metal packaging box
By designing a multi-layer sliding connection structure and a heat preservation mechanism, the problems of insufficient space utilization and inadequate stability of traditional food metal packaging boxes are solved, achieving multi-layer assembly and heat preservation effects, and improving the functionality and aesthetics of the packaging box.
Patent Information
- Application Number
- CN202423125146.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-10-15
AI Technical Summary
Traditional metal food packaging boxes have a single function and cannot be multi-layered, resulting in insufficient utilization of internal space and inadequate stability and insulation during transportation.
Design a multi-functional metal food packaging box with a multi-layer sliding connection structure, including a bottom box, a middle box and a top box. Multi-layer assembly is achieved through sliding connection and slot blocks, and a heat preservation mechanism is provided to maintain the temperature of the food.
It makes full use of the internal space, improves stability and insulation during transportation, and enhances the aesthetics and convenience of the packaging box.
Smart Images

Figure CN223546722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging box technology, and in particular to a multifunctional food metal packaging box. Background Technology
[0002] In the food packaging sector, as consumers' demands for food quality, convenience, and safety continue to rise, and as competition in the food industry intensifies, the need for innovation in food packaging is becoming increasingly urgent. While traditional food packaging materials each have their advantages, metal packaging boxes are gradually emerging and demonstrating unique competitiveness. However, traditional metal packaging boxes also have some limitations; their functions are relatively simple, often only providing basic food containment and protection. In today's fast-paced lifestyle, consumers have placed greater demands on the convenience of food packaging in different scenarios. Moreover, with the rapid development of e-commerce and logistics, the stability and protective properties of metal packaging boxes during transportation need further optimization to reduce food damage during transport.
[0003] Traditional food metal packaging boxes are typically single-layered, leaving the food in a disorganized state inside. For example, in a single-layer box, cookies and chocolates might be squeezed and broken, and due to inefficient space utilization, a larger box volume is often required to hold the same amount of food. Multi-functional food metal packaging boxes, however, employ a multi-layered structure. By rationally dividing the vertical space, they effectively utilize the internal space. In a competitive market, metal packaging boxes that cannot be multi-layered may give consumers a less refined or high-end impression. In contrast, multi-layered packaging boxes often appear more organized and stylish. Boxes that cannot be multi-layered struggle to effectively divide space when packaging irregularly shaped or differently sized foods, resulting in limited and monotonous use of the internal space. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a multifunctional food metal packaging box, which aims to improve the problems of existing technology where multi-layer installation is not possible, the internal space of the metal packaging box is relatively simple to utilize, and it is difficult to effectively divide the space.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multifunctional food metal packaging box, comprising a bottom box, a middle box slidably connected to the top of the inner wall of the bottom box, a top box slidably connected to the top of the middle box, a top cover slidably connected to the top of the inner wall of the top box, springs fixedly connected to the left and right sides of the inside of the top cover, a spring block fixedly connected to the right side of the right end of the spring, sliders slidably connected to the left and right sides of the outer wall of the middle box, a slot provided at the top of the inner wall of the middle box, sliding grooves provided on the left and right sides of the top of the inner wall of the middle box, and a locking block fixedly connected to the left and right sides of the outer wall of the top box, and a heat preservation mechanism provided on the outer wall of the bottom box for heat preservation of the food inside.
[0006] As a further description of the above technical solution:
[0007] The insulation mechanism includes an outer shell, the bottom of the inner wall of the outer shell is slidably connected to the outer wall of the bottom box, a top cover is slidably connected to the top of the outer shell, a handle is fixedly connected to the top of the top cover, an insulation sleeve is fixedly connected to the inner wall of the outer shell, an insulation board is fixedly connected to the bottom of the top cover, and a sealing ring is fixedly connected to the bottom edge of the top cover.
[0008] As a further description of the above technical solution:
[0009] A pad is fixedly connected to the bottom end of the bottom box, and the outer wall of the pad is slidably connected to the inner wall of the outer shell.
[0010] As a further description of the above technical solution:
[0011] An anti-slip disc is fixedly connected to the bottom of the outer casing, and a protective sleeve is fixedly connected to the outer wall of the outer casing.
[0012] As a further description of the above technical solution:
[0013] Decorative panels are fixedly connected to the front and rear sides of the top of the top cover, and the multiple decorative panels are arranged symmetrically.
[0014] As a further description of the above technical solution:
[0015] An anti-slip sleeve is fixedly connected to the top of the outer wall of the handle, and the outer wall of the card block is slidably connected to the inner wall of the slide groove.
[0016] As a further description of the above technical solution:
[0017] A stop block is fixedly connected to the right side of the slider, and a handle is fixedly connected to the top of the top cover.
[0018] As a further description of the above technical solution:
[0019] The outer wall of the card block is slidably connected to the inner wall of the card slot, and the outer wall of the spring block is slidably connected to the inner wall of the top cover.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, food is placed in the top box, and the second top cover is closed. The spring block is squeezed into the interior of the second top cover, and the spring deforms to generate elastic force. After the second top cover is closed, the spring pops out the spring block, pushing the slider part out of the top box, fixing the second top cover and the top box. Then, the card block is slid into the interior of the middle box. The top box is rotated to make the card block rotate around the card slot, connecting the top box and the middle box. The middle box and the bottom box are also connected in the same way, so that multi-layer assembly can be realized, making full use of the internal space and preventing the inability to fit all the food due to a large amount of food.
[0022] 2. In this utility model, the assembled equipment is placed into the outer shell, the top cover is closed, and the handle is used for easy carrying. The insulation sleeve isolates the packaging box from the outside world, reducing heat exchange and preventing the food from cooling. The insulation plate prevents heat loss from the top. The sealing ring seals the gap between the top cover and the outer shell, enhancing the sealing performance and reducing heat dissipation. This achieves the sealing of the device and prevents heat dissipation, thus preventing the internal food from cooling down and becoming inedible for the user. Attached Figure Description
[0023] Figure 1 A perspective view of the front side of the protective sleeve of a multifunctional food metal packaging box proposed in this utility model;
[0024] Figure 2 This is a partial structural exploded view of the heat-insulating sleeve of a multifunctional food metal packaging box proposed in this utility model;
[0025] Figure 3 This is a partial structural diagram of the bottom layer of a multifunctional food metal packaging box proposed in this utility model;
[0026] Figure 4 This is a partial structural diagram of the middle layer of a multifunctional food metal packaging box proposed in this utility model.
[0027] Figure 5 This is a schematic diagram of two partial structures of the top cover of a multifunctional food metal packaging box proposed in this utility model.
[0028] Legend:
[0029] 1. Bottom box; 2. Insulation mechanism; 201. Outer shell; 202. Top cover one; 203. Handle one; 204. Insulation sleeve; 205. Insulation board; 206. Sealing ring; 3. Middle box; 4. Top box; 5. Top cover two; 6. Spring; 7. Spring block; 8. Slider; 9. Slide groove; 10. Slot; 11. Locking block; 12. Stop block; 13. Handle two; 14. Pad plate; 15. Anti-slip sleeve; 16. Decorative panel; 17. Protective cover; 18. Anti-slip disc. 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] Please see the appendix Figure 3 Appendix Figure 4 and attached Figure 5 This utility model provides an embodiment of a multifunctional food metal packaging box, including a bottom box 1, a middle box 3 slidably connected to the top of the inner wall of the bottom box 1, a top box 4 slidably connected to the top of the middle box 3, and a top cover 5 slidably connected to the top of the inner wall of the top box 4. The slidable connection between the bottom box 1 and the middle box 3 allows users to easily pull the middle box 3 out of the bottom box 1, thereby achieving flexible adjustment of the internal space. The slidable connection between the middle box 3 and the top box 4 further increases the operability of the structure, allowing the top box 4 to move independently of the middle box 3. The slidable connection between the top box 4 and the top cover 5 ensures that the top cover 5 can tightly cover the top box 4 to maintain the heat preservation effect of the food inside. Springs 6 are fixedly connected to the left and right sides of the inside of the top cover 5, with the right spring 6... A spring block 7 is fixedly connected to the right side of the top cover 4. Slider blocks 8 are slidably connected to the left and right sides of the outer wall of the middle box 3. A slot 10 is opened at the top of the inner wall of the middle box 3. Sliding grooves 9 are opened on the left and right sides of the top of the inner wall of the middle box 3. A locking block 11 is fixedly connected to the left and right sides of the outer wall of the top cover 4. A heat preservation mechanism 2 is provided on the outer wall of the bottom box 1. The heat preservation mechanism 2 is used to keep the food inside warm. A stop block 12 is fixedly connected to the right side of the slider 8. A handle 13 is fixedly connected to the top of the top cover 5. The heat preservation mechanism 2 effectively keeps the food inside warm through advanced heat preservation materials and design, extending the freshness and edible time of the food. The stop block 12 plays a limiting role when the slider 8 moves to the extreme position, preventing the slider 8 from falling out of the track. The handle 13 makes it more convenient and effortless for users to open or close the top cover 5.
[0032] Please see the appendix Figure 1 Appendix Figure 2and attached Figure 3 The insulation mechanism 2 includes an outer shell 201. The bottom of the inner wall of the outer shell 201 is slidably connected to the outer wall of the bottom box 1. A top cover 202 is slidably connected to the top of the outer shell 201. A handle 203 is fixedly connected to the top of the top cover 202. An insulation sleeve 204 is fixedly connected to the inner wall of the outer shell 201. The slidable connection between the outer shell 201 and the bottom box 1 ensures a smooth transition and tight fit between the two. The slidable connection between the outer shell 201 and the top cover 202 makes the opening and closing process convenient and stable. The handle 203 is fixedly connected to the top cover 202 for user operation. The inner wall is fixedly fitted with an insulation sleeve 204, which significantly improves the product's insulation performance and ensures the temperature stability of the internal items. The bottom end of the top cover 202 is fixedly connected to an insulation board 205, and the bottom edge of the top cover 202 is fixedly connected to a sealing ring 206. The outer wall of the locking block 11 is slidably connected to the inner wall of the locking groove 10, the outer wall of the spring block 7 is slidably connected to the inner wall of the top cover 2 5, and the locking block 11 is slidably connected to the locking groove 10, demonstrating the precision and practicality of the design. The slidable connection between the spring block 7 and the top cover 2 5 not only ensures the flexibility of the structure but also reflects the consideration for long-term durability.
[0033] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 A pad 14 is fixedly connected to the bottom of the bottom box 1. The outer wall of the pad 14 is slidably connected to the inner wall of the outer shell 201. An anti-slip plate 18 is fixedly connected to the bottom of the outer shell 201. A protective sleeve 17 is fixedly connected to the outer wall of the outer shell 201. The pad 14 not only enhances the stability of the structure but also provides additional protection. The slidable connection between the pad 14 and the outer shell 201 ensures smooth movement between the two and also prevents the intrusion of dust and debris. The anti-slip plate 18 is fixedly connected to the outer shell 201. Considering the diversity of the usage environment, whether on a smooth floor or a rough ground, the anti-slip plate 18 can ensure the stable placement of the equipment and avoid the risk of accidental slippage. The protective sleeve 17 provides additional protection for the outer shell 201.
[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3The top cover 202 has decorative panels 16 fixedly connected to both the front and rear sides. Multiple decorative panels 16 are arranged symmetrically. The top of the outer wall of the handle 203 is fixedly connected to an anti-slip sleeve 15. The outer wall of the locking block 11 is slidably connected to the inner wall of the slide groove 9. The decorative panels 16 enhance the structural stability and aesthetics. The anti-slip sleeve 15 fully considers the user experience and ensures a stable and reliable grip in various environments. The sliding connection between the locking block 11 and the slide groove 9 ensures smooth operation between components, enabling the entire device to achieve a perfect combination of efficiency and convenience during use.
[0035] Working principle: Place the food into the top box 4, then cover it with the second top cover 5. The edge of the top box 4 will squeeze the spring block 7, causing the spring block 7 to enter the interior of the second top cover 5 and compress the spring 6 to deform and generate elastic force. When the second top cover 5 is completely closed, the spring 6 will eject the spring block 7 out of the interior of the second top cover 5 and partially enter the interior of the top box 4. Push the slider 8 out from the interior of the top box 4 to fix the second top cover 5 and the top box 4 together. Then slide the locking block 11 along the inner wall of the slide groove 9 into the interior of the middle box 3. Rotate the top box 4 so that the locking block 11 rotates around the locking groove 10, thus connecting the top box 4 and the middle box 3 together. The middle box 3 and the bottom box 1 are connected in the same way, which can realize multi-layer assembly, make full use of the internal space, and prevent the food from not being able to fit in due to a large amount of food.
[0036] The assembled device is placed inside the outer casing 201, and then the top cover 202 is placed on top. The handle 203 makes it easy for users to carry. The insulation sleeve 204 can isolate the packaging box from the outside world, reducing heat exchange between the device and the outside world and preventing the food inside from cooling down. The insulation plate 205 is used to block the loss of heat from above, and the sealing ring 206 can seal the gap between the top cover 202 and the outer casing 201, which can enhance the sealing of the device, reduce heat loss, and achieve the sealing of the device. It also prevents heat loss and prevents the food inside from cooling down, which would make it inedible for the user.
[0037] 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 multifunctional food metal packaging box, comprising a bottom box (1), characterized in that: The bottom box (1) is slidably connected to the top of the inner wall of the middle box (3), the top of the middle box (3) is slidably connected to the top of the top box (4), the top of the inner wall of the top box (4) is slidably connected to the top of the inner wall of the top box (4), the top cover (5) is fixedly connected to the left and right sides of the inside of the top cover (5), and the right side of the right end of the spring (6) is fixedly connected to the right side of the spring (6). The left and right sides of the outer wall of the middle box (3) are slidably connected to the slider (8). The top of the inner wall of the middle box (3) is provided with a slot (10). The top of the inner wall of the middle box (3) is provided with a sliding groove (9). The left and right sides of the top of the inner wall of the middle box (3) are fixedly connected to the left and right sides of the outer wall of the top box (4). The outer wall of the bottom box (1) is provided with a heat preservation mechanism (2), which is used to keep the food inside warm.
2. The multifunctional food metal packaging box according to claim 1, characterized in that: The heat preservation mechanism (2) includes an outer shell (201), the bottom of the inner wall of the outer shell (201) is slidably connected to the outer wall of the bottom box (1), the top of the outer shell (201) is slidably connected to a top cover (202), the top of the top cover (202) is fixedly connected to a handle (203), the inner wall of the outer shell (201) is fixedly connected to a heat preservation sleeve (204), the bottom of the top cover (202) is fixedly connected to a heat preservation board (205), and a sealing ring (206) is fixedly connected to the bottom edge of the top cover (202).
3. A multifunctional food metal packaging box according to claim 1, characterized in that: A pad (14) is fixedly connected to the bottom end of the bottom box (1), and the outer wall of the pad (14) is slidably connected to the inner wall of the outer shell (201).
4. A multifunctional food metal packaging box according to claim 2, characterized in that: An anti-slip disc (18) is fixedly connected to the bottom of the outer shell (201), and a protective sleeve (17) is fixedly connected to the outer wall of the outer shell (201).
5. A multifunctional food metal packaging box according to claim 2, characterized in that: The top and front sides of the top cover (202) are fixedly connected with decorative panels (16), and the multiple decorative panels (16) are arranged symmetrically.
6. A multifunctional food metal packaging box according to claim 2, characterized in that: The top of the outer wall of the handle (203) is fixedly connected to an anti-slip sleeve (15), and the outer wall of the locking block (11) is slidably connected to the inner wall of the slide groove (9).
7. A multifunctional food metal packaging box according to claim 1, characterized in that: A stop block (12) is fixedly connected to the right side of the slider (8), and a handle (13) is fixedly connected to the top of the top cover (5).
8. A multifunctional food metal packaging box according to claim 1, characterized in that: The outer wall of the card block (11) is slidably connected to the inner wall of the card slot (10), and the outer wall of the spring block (7) is slidably connected to the inner wall of the top cover (5).