Anti-pollution self-heating meal box
By designing flow guide gaps, flow guide holes, and flow guide grooves in the self-heating food container to form an air gap, cold water is injected after assembly, which solves the problem of gas contamination of the food during self-heating and achieves safe heating and airtightness of the food.
Patent Information
- Application Number
- CN202423184260.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-23
AI Technical Summary
During the heating process, the harmful gases produced by the self-heating pack in traditional self-heating food containers can contaminate the food, and the current design cannot effectively prevent the gases from entering the inner box.
The design incorporates flow guide gaps, flow guide holes, flow guide grooves, and a first surrounding edge to form an elevated layer. Cold water is injected after assembly to prevent gas from entering the inner box. The elevated layer is formed by combining bosses and wings, while the flow guide grooves and flow guide holes facilitate the gas exhaust.
It effectively prevents food from being contaminated, improves the safety and airtightness of the heating process, and ensures that food is not affected by harmful gases generated when the self-heating pack heats up.
Smart Images
Figure CN223554453U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of plastic products, in particular to a pollution-preventing self-heating lunch box. BACKGROUND
[0002] Self-heating food is a new product in recent years, which is characterized by a self-heating bag. The main components of the self-heating bag include quicklime, iron powder, coke powder, sodium carbonate, calcined diatomite, activated carbon, salt, and quicklime. When the self-heating bag contacts water, a chemical reaction occurs, releasing a large amount of heat. When in use, the self-heating bag can be soaked in cold water to heat the food.
[0003] A conventional self-heating lunch box includes a bottom box, an inner box, and a lid. The inner box is placed in the bottom box, and air passages are reserved on both sides of the inner box and the bottom box. An air hole is reserved at the center of the lid. The bottom box and the inner box are in a state of communication, and the air hole is also located at the center of the inner box. When in use, the self-heating bag is placed in the bottom box, and the self-heating bag starts to heat after the addition of cold water. Then, the inner box loaded with food is placed in the bottom box, and the lid is covered. After heating is completed, the food is heated. During the heating process, the gas generated by the boiling hot water is discharged to the external environment through the air passages and the air hole. The disadvantage of this conventional design is that after the self-heating bag is soaked in cold water, substances harmful to human health are released into the hot water during the heating process. These substances rise with the gas and flow through the inner box to contaminate the food. SUMMARY
[0004] Therefore, the utility model provides a pollution-preventing self-heating lunch box. By using the flow guide gap, the flow guide hole, the flow guide groove, and the first surrounding edge, the user can assemble the bottom box, the inner box, and the lid after placing the self-heating bag and loading the food. After the inner box is in a closed state, cold water is injected into the bottom box. This avoids the gas generated by the self-heating bag during heating from entering the inner box, thereby preventing the food from being contaminated.
[0005] A pollution-preventing self-heating lunch box includes:
[0006] A bottom box is provided with a plurality of bosses. Each boss extends inward from the inner side wall of the bottom box.
[0007] An inner box is accommodated in the bottom box. A flow guide gap is reserved between the outer side wall of the inner box and the inner side wall of the bottom box. The inner box is provided with a plurality of wing parts located in the flow guide gap. The wing parts are located on the outer side wall of the inner box and are erected on the bosses one by one.
[0008] A lid is connected to the bottom box. The bottom of the lid is provided with a first surrounding edge, and the first surrounding edge surrounds the outer periphery of the top of the inner box to close the inner box. A flow guide groove and a plurality of flow guide holes are provided in the top of the lid. The flow guide groove radiates outward from the center of the lid. Each flow guide hole is located at the end of the flow guide groove and penetrates the lid in the vertical direction to communicate with the flow guide gap.
[0009] The anti-pollution self-heating lunch box uses the combination of the boss and the wing part to form an empty layer for loading cold water and the self-heating bag between the bottom box and the inner box when the bottom box, the inner box and the cover are combined. A flow guiding gap is reserved between the inner side wall of the bottom box and the outer side wall of the inner box. When the cover is assembled with the bottom box, the user can inject cold water into the flow guiding groove of the cover from the outside. The cold water is divided into each flow guiding hole along the flow guiding groove and then enters the flow guiding gap and finally flows into the empty layer to soak the self-heating bag. When the cover is assembled with the bottom box, the first surrounding edge of the cover seals the inner box, and the gas generated when the self-heating bag heats up cannot enter the inner box. The design of the flow guiding gap, the flow guiding hole, the flow guiding groove and the first surrounding edge enables the user to assemble the bottom box, the inner box and the cover after putting in the self-heating bag and loading the food. The cold water is injected into the bottom box only after the inner box reaches the sealed state, avoiding the gas generated when the self-heating bag heats up from entering the inner box and achieving the purpose of preventing the food from being polluted.
[0010] In one of the embodiments, the outer side wall of the bottom box is provided with a plurality of lugs. The lugs facilitate the user to move the bottom box.
[0011] In one of the embodiments, the at least two oppositely arranged lugs are respectively provided with buckles which are buckled with the circumference of the top of the cover. The buckles lock the cover, which improves the combination stability of the bottom box, the inner box and the cover and is also conducive to improving the sealing performance of the inner box.
[0012] In one of the embodiments, the circumference of the top of the bottom box is provided with a second surrounding edge, and the circumference of the bottom of the cover is provided with a sealing groove which is matched with the second surrounding edge. This design can improve the sealing performance of the bottom box and the cover.
[0013] In one of the embodiments, the bottom box is a transparent box body. The transparent box body facilitates the user to observe the liquid level in the bottom box.
[0014] In one of the embodiments, the flow guiding groove is X-shaped, and the number of the flow guiding holes is four which are respectively arranged at the ends of the flow guiding groove. The user can inject cold water into the center of the flow guiding groove, and then the cold water is divided into each flow guiding hole from the flow guiding groove and enters the empty layer from the four corners of the bottom box.
[0015] In one of the embodiments, the cover is further provided with a plurality of screen meshes which are respectively arranged in the flow guiding holes. The screen meshes can filter the cold water and intercept the splashed hot water when the self-heating bag works.
[0016] In one of the embodiments, the cover is further provided with a flow guiding slope surface which is arranged in the flow guiding groove and extends downward from the center of the flow guiding groove to the flow guiding hole. The flow guiding slope surface can use the gravity to quickly guide the cold water into the flow guiding hole. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0018] Figure 2 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 1 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0019] A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 3 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 2 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0020] A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 4 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 2 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0021] A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 5 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 2 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0022] A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 6 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 5 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0023] A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 7 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 2 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0024] A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 8 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 7 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0025] A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 9 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 2 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0026] A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 10 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. Figure 9 A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1. A perspective view of the anti-pollution self-heating lunch box according to an embodiment of the present application is shown in FIG. 1.
[0027] The meanings of the respective reference numerals in the drawings are as follows:
[0028] 100 - anti-pollution self-heating lunch box;
[0029] 10 - bottom box, 11 - boss, 12 - lug, 121 - buckle, 13 - sealing groove;
[0030] 20 - inner box, 21 - wing;
[0031] 30 - cover, 31 - first rim, 32 - flow guide groove, 33 - flow guide hole, 34 - second rim;
[0032] 40 - flow guide gap;
[0033] 50 - air layer. DETAILED DESCRIPTION
[0034] In order to make the above objectives, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those specifically described herein, and the present application is not limited to the embodiments described herein as long as they do not depart from the spirit of the present application. Therefore, the present application is not limited by the following disclosed embodiments.
[0035] In the description of the present application, 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", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 present application.
[0036] In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0037] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0040] like Figures 1 to 10 As shown, this is an embodiment of the pollution-proof self-heating lunch box 100 of this utility model.
[0041] like Figures 1 to 3 As shown, the contamination-resistant self-heating food container 100 includes: a base box 10, an inner box 20 housed within the base box 10, and a lid 30 connected to the base box 10. The base box 10 is used to hold the self-heating pack and cold water, while the inner box 20 is used to hold the food. The lid 30 is combined with the base box 10 to form a cavity for housing the inner box 20, and the lid 30 also serves to close the inner box 20.
[0042] The following text, combined with Figures 1 to 10 Further explanation is provided regarding the aforementioned pollution-proof self-heating lunch box 100.
[0043] like Figure 5 As shown, the bottom box 10 is provided with a plurality of protrusions 11, each protrusion 11 extending inward from the inner sidewall of the bottom box 10.
[0044] like Figure 4 As shown, a flow guiding gap 40 is reserved between the outer side wall of the inner box 20 and the inner side wall of the bottom box 10. Combined with... Figure 4 , Figure 7 ,as well as Figure 8 As shown, the inner box 20 is provided with a plurality of wings 21 located in the flow guide gap 40. The wings 21 are located on the outer side wall of the inner box 20 and are mounted on the boss 11 one by one.
[0045] Combination Figure 2 and Figure 10As shown, the bottom of the cover 30 is provided with a first rim 31, and the first rim 31 is arranged around the outer periphery of the top of the inner box 20 to close the inner box 20. As shown Figure 9 As shown, the top of the cover 30 is provided with a flow guide groove 32 and a plurality of flow guide holes 33 respectively communicating with the flow guide groove 32. The flow guide groove 32 radiates outward from the center of the cover 30. As shown Figure 2 As shown, each flow guide hole 33 is located at the end of the flow guide groove 32 and penetrates the cover 30 in the vertical direction to communicate with the flow guide gap 40.
[0046] As shown Figure 9 As shown, in this embodiment, the flow guide groove 32 is X-shaped. The number of flow guide holes 33 is four and each is distributed at the end of the flow guide groove 32. The user can inject cold water into the center of the flow guide groove 32, and then the cold water is distributed from the flow guide groove 32 to the four corners of the flow guide holes 33, respectively, into the air layer 50 from the four corners of the bottom box 10.
[0047] Further, in some embodiments, the cover 30 can also be provided with a flow guide slope. The flow guide slope is located in the flow guide groove 32 and extends downward from the center of the flow guide groove 32 to the flow guide hole 33. The flow guide slope can be used by gravity to quickly guide the cold water into the flow guide hole 33, and also reduce the risk of cold water remaining in the flow guide groove 32.
[0048] Working principle:
[0049] As shown Figure 2 As shown, by combining the boss 11 and the wing part 21, when the bottom box 10, the inner box 20, and the cover 30 are combined, the air layer 50 for loading cold water and the heat bag is formed between the bottom box 10 and the inner box 20. And the inner side wall of the bottom box 10 and the outer side wall of the inner box 20 are reserved for the flow guide gap 40. When the cover 30 is assembled with the bottom box 10, the user can inject cold water into the flow guide groove 32 of the cover 30 from the outside, the cold water is distributed along the flow guide groove 32 to each flow guide hole 33, and then enters the flow guide gap 40, and finally flows into the air layer 50 to soak the heat bag. And when the cover 30 is assembled with the bottom box 10, the first rim 31 of the cover 30 closes the inner box 20, and the gas generated when the heat bag heats up cannot enter the inner box 20. Moreover, the gas generated when the heat bag works enters the flow guide gap 40 from the air layer 50, and is discharged outward from the flow guide hole 33. That is, the flow guide gap 40 and the flow guide hole 33 are not only used for guiding cold water, but also for guiding gas.
[0050] Considering that in this scheme, the step of injecting cold water is after the bottom box 10, the inner box 20, and the cover 30 are assembled, therefore, it is difficult for the user to directly observe the liquid level in the bottom box 10. To solve this problem, the bottom box 10 can be a transparent box. The transparent box facilitates the user to observe the liquid level in the bottom box 10.
[0051] In addition, the instant heating bag can rapidly generate heat within 5-10 seconds after contacting cold water, and in the present solution, cold water can be injected after the bottom box 10, the inner box 20, and the cover 30 are assembled, which can greatly improve safety.
[0052] Considering that the overall temperature is high after the meal is heated, in order to facilitate the user to move the meal box, the outer side wall of the bottom box 10 is provided with a plurality of lugs 12. Figure 5
[0053] Further, as shown in Figure 5 At least two oppositely arranged lugs 12 can be respectively provided with buckles 121, and the buckles 121 are clamped to the periphery of the top of the cover 30. Figure 1 Figure 2 As shown in
[0054] In order to enable the gas generated by the instant heating bag to be concentratedly discharged from the flow guide hole 33, in combination with Figure 2 Figure 5 Figure 10 As shown in the present embodiment, the periphery of the top of the bottom box 10 is provided with a second surrounding edge 34, and the periphery of the bottom of the cover 30 is provided with a sealing groove 13 that is matched with the second surrounding edge 34, which can improve the sealing property of the bottom box 10 and the cover 30.
[0055] Considering that the instant heating bag can generate hot water that violently boils, the hot water can splash to the outside from the flow guide hole 33, therefore, in some embodiments, the cover 30 can be further provided with a plurality of blocking nets. The blocking nets are arranged in one-to-one correspondence in the flow guide holes 33. The blocking nets can filter cold water, and can also intercept the splashed hot water when the instant heating bag works.
[0056] The above-mentioned anti-pollution instant heating meal box 100 utilizes the flow guide gap 40, the flow guide hole 33, the flow guide groove 32, and the first surrounding edge 31, so that the user can assemble the bottom box 10, the inner box 20, and the cover 30 after putting in the instant heating bag and loading the meal, and then inject cold water into the bottom box 10 after the inner box 20 reaches a closed state, which avoids the gas generated when the instant heating bag generates heat from entering the inner box 20, and achieves the purpose of preventing the meal from being polluted.
[0057] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.
[0058] The above embodiment only expresses the preferred implementation of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, a number of variations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A pollution-resistant self-heating lunch box, characterized in that, include: A base box; the base box is provided with multiple protrusions; each of the protrusions extends inward from the inner sidewall of the base box; An inner box housed within the base box; a flow guide gap is provided between the outer side wall of the inner box and the inner side wall of the base box; the inner box is provided with multiple wings located within the flow guide gap; The wings are located on the outer side wall of the inner box and are mounted on the protrusions one by one; as well as A lid is connected to the bottom box; the bottom of the lid is provided with a first rim, and the first rim surrounds the outer periphery of the top of the inner box to close the inner box; the top of the lid is provided with a flow guide groove and a plurality of flow guide holes respectively communicating with the flow guide groove; the flow guide groove radiates outward from the center of the lid; each of the flow guide holes is located at the end of the flow guide groove and penetrates the lid vertically to communicate with the flow guide gap.
2. The pollution-proof self-heating lunch box according to claim 1, characterized in that, The outer wall of the bottom box is provided with multiple lugs.
3. The pollution-proof self-heating lunch box according to claim 2, characterized in that, At least two oppositely positioned lugs are provided with buckles, and the buckles engage with the periphery of the top of the cover.
4. The pollution-proof self-heating lunch box according to claim 1, characterized in that, The top periphery of the bottom box is provided with a second rim, and the bottom periphery of the lid is provided with a sealing groove that mates with the second rim.
5. The pollution-proof self-heating lunch box according to claim 1, characterized in that, The bottom box is a transparent box.
6. The pollution-proof self-heating lunch box according to claim 1, characterized in that, The flow channel is X-shaped; there are four flow holes, each distributed at the end of the flow channel.
7. The pollution-proof self-heating lunch box according to claim 1, characterized in that, The cover is also provided with multiple baffles; each baffle is located in a corresponding position in the flow guide hole.
8. The pollution-proof self-heating lunch box according to claim 1, characterized in that, The cover is also provided with a flow guiding slope; the flow guiding slope is located in the flow guiding groove and extends downward at an angle from the center of the flow guiding groove toward the flow guiding hole.