Multifunctional lunch box
By integrating an exhaust valve and folding cutlery into a multi-functional lunchbox design, the problems of poor steam management and inconvenient carrying of cutlery in traditional lunchboxes are solved, enabling easy opening and preventing food leakage, thus improving the user experience.
Patent Information
- Application Number
- CN202520532612.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Traditional lunch boxes have poor steam management when carrying hot food, which can lead to pressure buildup that makes it difficult to open the lid, causing food to spill and posing a safety hazard. They also do not come with utensils, which need to be carried separately, and existing solutions are inconvenient to operate or easy to lose.
Design a multifunctional lunch box that integrates an exhaust valve and foldable cutlery in the lid. The seal is optimized through threaded connections and leak-proof parts. Combined with a rubber exhaust valve and dust cover, it enables easy opening and prevents food leakage.
It enables easy opening of the lid, prevents food leakage, avoids loss of parts, improves ease of use and safety, and conforms to user habits.
Smart Images

Figure CN223682109U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of daily necessities, especially to a multifunctional lunch box. BACKGROUND
[0002] With the popularity of fast-paced lifestyle and the deep-rooted concept of healthy diet, portable lunch boxes have become increasingly important as a daily dining solution. However, in the existing technology, the design of traditional lunch boxes often focuses on a single food storage function, and there are many shortcomings in practicality and convenience, making it difficult to meet the increasingly diverse needs of users.
[0003] Current market lunch boxes, especially those designed for hot food, generally have poor steam management. When users carry hot soup or food, the steam released by the food can cause the internal pressure of the lunch box to rise, making it difficult to open the lid and possibly causing food to spill, which is neither safe nor sanitary. In addition, traditional lunch boxes usually do not come with utensils, and users need to carry spoons, chopsticks, etc. separately, increasing the burden of travel and making it easy to forget or lose, affecting the dining experience. Although some lunch boxes have tried to solve the above problems by adding independent exhaust valves or providing external utensil packages, these solutions often have the disadvantages of inconvenient operation, easy loss of accessories, or additional cost. SUMMARY
[0004] The technical problem to be solved by the utility model is to provide a multifunctional lunch box that optimizes the lid structure, integrates multiple functions together, and both meets the user's usage habits and avoids the loss problem caused by too many parts.
[0005] To solve the above technical problems, the technical solution provided by the utility model is as follows:
[0006] A multifunctional lunch box includes a lid and a box body. The lid is connected to the box body. The lid includes a lid body and a leak-proof part. The leak-proof part is fixedly installed inside the lid body. An accommodation groove is formed between the inner side wall of the lid body and the side wall of the leak-proof part. The lid and the box body are connected by threads. A receiving cavity is formed in the lid body. A receiving part is arranged inside the receiving cavity. A folding spoon is arranged in the receiving part. An exhaust structure is arranged at the bottom of the receiving part. The exhaust structure includes an exhaust valve receiving part and an exhaust valve. The upper end of the exhaust valve receiving part is in communication with the receiving part, and the lower end is a closed structure. A through hole is arranged at the bottom of the exhaust valve receiving part. The through hole penetrates the leak-proof part and is in sliding cooperation with the exhaust valve.
[0007] In the present scheme, the integration of the accommodating portion and the exhaust structure not only optimizes the spatial layout of the cover, but also better fits the user's usage habits. The folding tableware can be placed in the accommodating portion. When eating, the user can take out the folding tableware from the accommodating portion, then press the exhaust valve to promote the exhaust of the gas in the container, so as to easily open the cover. This operation process is not only fast and convenient, but also avoids the loss problem caused by too many parts, and is more convenient to use. In addition, the cover is designed as two parts of the cover body and the leakage prevention part. When the cover is closed, the edge of the leakage prevention part tightly abuts against the inside of the box body, and the accommodating groove accommodates the box wall of the box body. The cover is screwed on the box body through the thread on the inside of the cover body, forming a stable sealing structure. The tight abutment of the side wall of the leakage prevention part and the inside wall of the cover body, combined with the mechanical locking action of the threaded connection, effectively prevents food leakage, ensuring safety even when carrying liquid food, surpassing the single leakage prevention design of traditional lunch boxes.
[0008] Further, the exhaust valve includes a support portion and a fixed portion. The fixed portion is fixedly connected with the lower end of the support portion. The support portion is in sliding fit with the through hole. The diameter of the fixed portion is larger than that of the through hole, so as to cover the bottom of the through hole. An exhaust groove is arranged on the support portion. A protruding portion is arranged on the outside of the upper end of the support portion. In this design, when the exhaust valve is in the closed state, the fixed portion will cover the through hole to prevent the heat inside the box body from escaping. When exhaust is needed, the user presses the exhaust valve downward. The exhaust groove and the side wall of the through hole jointly form an exhaust passage, through which the gas can be exhausted. To avoid that the exhaust valve completely separates from the through hole during operation, a protruding portion is designed on the top of the exhaust valve. When the exhaust valve moves downward to a certain position, the protruding portion will be clamped on the edge of the through hole, ensuring that the exhaust valve remains in a fixed position, thereby effectively preventing the loss of parts. The exhaust valve is made of common rubber material on the market, which has large friction and certain elasticity, and is not easy to shake and come out of the through hole.
[0009] Further, a dust cover is arranged above the accommodating cavity. The dust cover covers the top of the accommodating cavity, and the dust cover is rotationally connected with the accommodating cavity. Through the dust cover covering the top of the accommodating cavity, dust, food residues and other external pollutants are effectively prevented from entering the accommodating portion. At the same time, since the tableware is always in a relatively closed space before use, the user can directly use it after taking it out, improving the convenience of use.
[0010] Further, a recessed portion is arranged on the side wall of the accommodating portion. The design of the recessed portion is more in line with ergonomics, and facilitates the user to take out the tableware placed in the accommodating portion.
[0011] Further, the edge of the cover body is provided with a handle accommodating portion, a handle is installed in the handle accommodating portion, and the handle is rotationally connected with the handle accommodating portion. The rotational connection between the handle and the handle accommodating portion enables the handle to be folded and accommodated in the accommodating portion when not in use, tightly abutting the edge of the cover body and not occupying extra space. This design not only maintains the neat appearance of the lunch box, but also avoids the handle from being entangled or collided with other objects during daily storage.
[0012] Further, the upper half of the cover body is hexagonal, and an inner recess is arranged on the outer side wall of the cover body and extends to the upper end edge of the cover body. The hexagonal design increases the number of edge contact surfaces compared with the traditional circular shape, making it more convenient for users to grasp and open the cover.
[0013] Further, the middle part of the handle is provided with an anti-skid part. The anti-skid part can increase the friction between the handle and the hand, improving the gripping stability of the user during carrying.
[0014] In summary, the multifunctional lunch box optimizes the cover structure, integrates the tableware and the exhaust function together, conforms to the user's usage habits, and avoids the loss problem caused by too many parts. BRIEF DESCRIPTION OF DRAWINGS
[0015] The utility model will be further described in connection with the drawings and specific embodiments:
[0016] Figure 1 It is the general assembly structure schematic diagram of the utility model;
[0017] Figure 2 It is the cover section view of the utility model;
[0018] Figure 3 It is the structure schematic diagram of the exhaust valve of the utility model;
[0019] Figure 4 It is the structure schematic diagram of the cover of the utility model;
[0020] Among them: cover-1, cover body-11, leakage prevention part-12, containing groove-13, accommodating cavity-14, accommodating portion-141, recess-1411, exhaust structure-15, exhaust valve accommodating portion-151, exhaust valve-152, support-1521, fixed part-1522, exhaust groove-1523, convex part-1524, through hole-153, dust cover-16, handle accommodating portion-17, handle-18, anti-skid part-181, inner recess-19, box body-2. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples.
[0022] In the description of the utility model, it should be understood that the orientation and position relationship indicated by "upper", "lower", "left", "right", "front", "rear", "vertical", "bottom", "inner", "outer" and the like are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0023] As shown in Figure 1 and Figure 2 A multifunctional lunch box, comprising a lid 1 and a box body 2, the lid 1 is connected with the box body 2, the lid 1 comprises a cover body 11 and a leakage prevention part 12, the leakage prevention part 12 is fixedly installed inside the cover body 11, a containing groove 13 is formed between the inner side wall of the cover body 11 and the side wall of the leakage prevention part 12, the cover body 11 is connected with the box body 2 by screw thread, a containing cavity 14 is formed in the cover body 11, a containing part 141 is arranged inside the containing cavity 14, an exhaust structure 15 is arranged at the bottom of the containing part 141, the exhaust structure 15 comprises an exhaust valve containing part 151 and an exhaust valve 152, the upper end of the exhaust valve containing part 151 is communicated with the containing part 141, the lower end is a closed structure, a through hole 153 is arranged at the bottom of the exhaust valve containing part 151, the through hole 153 penetrates through the leakage prevention part 12, and the through hole 153 is in sliding fit with the exhaust valve 152.
[0024] In the embodiment, the integration of the containing part 141 and the exhaust structure 15 not only optimizes the space layout of the lid 1, but also is more in line with the use habits of users. The folding tableware can be placed in the containing part, and when eating, the user can take out the folding tableware from the containing part 141, then press the exhaust valve 152, so that the gas in the container is discharged, and the lid 1 is easily opened. This operation process is not only fast and convenient, but also avoids the loss problem caused by too many parts, and is more convenient to use. In addition, the lid 1 is designed as two parts of the cover body 11 and the leakage prevention part 12, when the lid 1 is closed, the edge of the leakage prevention part 12 tightly abuts against the inside of the box body 2, the containing groove 13 contains the box wall of the box body 2, and the lid 1 is screwed on the box body 2 through the screw thread on the inner side of the cover body 11, so as to form a stable sealing structure. The tight abutment of the side wall of the leakage prevention part 12 and the inner side wall of the cover body 11, in combination with the mechanical locking effect of the screw thread connection, effectively prevents food leakage, ensures safety even when carrying liquid food, and surpasses the single leakage prevention design of the traditional lunch box.
[0025] As preferred, as Figure 3As shown, the exhaust valve 152 includes a support part 1521 and a fixed part 1522, the fixed part 1522 is fixedly connected with the lower end of the support part 1521, the support part 1521 is in sliding fit with the through hole 153, the diameter of the fixed part 1522 is larger than that of the through hole 153 so as to cover the bottom of the through hole 153, the support part 1521 is provided with an exhaust groove 1523, and the outer side of the upper end of the support part 1521 is provided with a protruding part 1524. In this design, when the exhaust valve 152 is in a closed state, the fixed part will cover the through hole 153 to prevent heat inside the box body 2 from escaping. When exhaust is needed, the user presses the exhaust valve 152 downward, the exhaust groove 1523 and the sidewall of the through hole 153 jointly form an exhaust passage, and the gas can be discharged through the passage. In order to avoid that the exhaust valve 152 completely separates from the through hole 153 during operation, the top of the exhaust valve 152 is designed with a protruding part 1524, which will be caught on the edge of the through hole 153 when the exhaust valve 152 moves downward to a certain position, ensuring that the exhaust valve 152 remains in a fixed position, thereby effectively preventing the loss of parts. The exhaust valve 152 is made of common rubber material on the market, which has large friction and certain elasticity, and is not easy to shake and come out of the through hole.
[0026] As preferred, as shown in Figure 1 As shown, a dust cover 16 is arranged above the accommodating cavity 14, the dust cover 16 covers the top of the accommodating cavity 14, and the dust cover 16 is rotatably connected with the accommodating cavity 14. Through the dust cover 16 covering the top of the accommodating cavity 14, dust, food residues and other external pollutants are effectively prevented from entering the accommodating part 141. At the same time, since the tableware is always in a relatively closed space before use, the user can directly use it after taking it out, improving the convenience of use.
[0027] As preferred, as shown in Figure 1 As shown, a recessed part 1411 is arranged on the sidewall of the accommodating part 141 。 The design of the recessed part 1411 is more in line with ergonomics, facilitating the user to take out the tableware placed in the accommodating part 141.
[0028] As preferred, as shown in Figure 3 As shown, a handle accommodating part 17 is arranged on the edge of the cover body 11, a handle 18 is installed in the handle accommodating part 17, and the handle 18 is rotatably connected with the handle accommodating part 17. The rotatable connection between the handle 18 and the handle accommodating part 17 enables the handle 18 to be folded and stored in the accommodating part when not in use, closely adhering to the edge of the cover body 11 and not occupying additional space. This design not only maintains the neatness of the appearance of the lunch box, but also avoids entanglement or collision of the handle 18 with other objects during daily storage.
[0029] As preferred, as shown in Figure 1 and Figure 4As shown, the upper half of the cover body 11 is hexagonal, and a concave portion 19 is arranged on the outer wall of the cover body 11 and extends to the upper end edge of the cover body 11. Compared with the traditional circular design, the hexagonal design increases the number of edge contact surfaces, which is more convenient for users to grasp when opening the cover, so that the cover 1 can be easily opened. The presence of the concave portion 19 allows the dust cover 16 to be easily forced upward from the concave portion 19 to open the dust cover 16 in the closed state.
[0030] As preferred, as Figure 4 As shown, the middle of the handle 18 is provided with an anti-skid portion 181. The arrangement of the anti-skid portion 181 can increase the friction between the handle 18 and the hand, and improve the holding stability of the user during carrying.
[0031] In summary, this multifunctional lunch box optimizes the cover structure, integrates the tableware and the exhaust function together, which not only conforms to the user's use habit, but also avoids the loss problem caused by too many parts.
[0032] In summary, the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A multi-functional lunch box comprising a cover and a box body, the cover being connected to the box body, characterized in that: The lid comprises a cover body and a leak-proof part, the leak-proof part is fixedly installed inside the cover body, a containing groove is formed between the inner side wall of the cover body and the side wall of the leak-proof part, the cover body is connected with the box body by screw thread, a containing cavity is formed on the cover body, a containing part is arranged inside the containing cavity, an exhaust structure is arranged at the bottom of the containing part, the exhaust structure comprises an exhaust valve containing part and an exhaust valve, the upper end of the exhaust valve containing part is communicated with the containing part, the lower end is a closed structure, a through hole is arranged at the bottom of the exhaust valve containing part, the through hole penetrates the leak-proof part, and the through hole is slidably connected with the exhaust valve.
2. The multi-functional lunch box according to claim 1, characterized by: The exhaust valve comprises a supporting part and a fixing part, the supporting part is slidably connected with the through hole, the fixing part is fixedly connected with the lower end of the supporting part, the diameter of the fixing part is larger than that of the through hole so as to cover the bottom of the through hole, an exhaust groove is arranged on the supporting part, and a protruding part is arranged at the outer side of the upper end of the supporting part.
3. The multi-functional lunch box according to claim 1, characterized by: A dustproof cover is arranged above the containing cavity, the dustproof cover covers the top of the containing cavity, and the dustproof cover is rotationally connected with the containing cavity.
4. The multi-functional lunch box according to claim 1, characterized by: A recessed part is arranged on the side wall of the containing part.
5. The multi-functional lunch box according to claim 1, characterized in that: A handle containing part is arranged at the edge of the cover body, a handle is installed in the handle containing part, and the handle is rotationally connected with the handle containing part.
6. The multi-functional lunch box according to claim 5, characterized by: The upper half of the cover body is hexagonal, an inner recessed part is arranged on the outer side wall of the cover body, and the inner recessed part extends to the upper end edge of the cover body.
7. The multi-functional lunch box according to claim 5, characterized by: A non-slip part is arranged at the middle of the handle.