Self-heating disposable meal box

Abstract

The utility model relates to the field of food utensils, and provides a self-heating disposable meal box which comprises a water injection base, a heating box body and a self-heating bag. A placement opening is formed in the top of the water injection base, a plurality of supporting columns are arranged on the inner wall of the water injection base, and the heating box body is placed on the supporting columns and covers the placement opening; a box brim is arranged at a box opening, far away from one end of the water injection base, of the heating box body; the self-heating bag is placed in the water injection base, water is injected into the water injection base during use, the self-heating bag is self-heated when meeting water, and heat is transferred to the heating box body. The food heating device has the effect of safely heating food.

Description

Technical Field

[0001] The present application relates to the field of food utensils, and in particular to a self-heating disposable lunch box. Background Art

[0002] At present, take-out food is mostly packaged in disposable lunch boxes. For foods that need to be heated, such as grilled fish and crayfish, metal racks and alcohol lamps are usually provided for heating. The flame of the alcohol lamp directly contacts the metal rack and heats the food through heat conduction to maintain the temperature of the food. This method is costly and poses safety hazards.

[0003] The use of metal racks and alcohol lamps increases costs, and alcohol lamps are prone to fire, posing a safety hazard. In addition, the heating effect of alcohol lamps is difficult to control and will be affected by airflow, which may cause some food to be overheated or overcooled. Summary of the invention

[0004] In order to improve the above-mentioned problems, the present application provides a self-heating disposable lunch box.

[0005] The self-heating disposable lunch box provided in this application adopts the following technical solution:

[0006] A self-heating disposable lunch box comprises a water-filled base, a heating box body and a self-heating bag; the top of the water-filled base is provided with a placement opening, and the inner wall is provided with a plurality of support columns, the heating box body is placed on the plurality of support columns and covers the placement opening; a box eave is provided at the box opening of the heating box body away from the water-filled base at one end; the self-heating bag is placed in the water-filled base, and water is poured into the water-filled base during use, the self-heating bag self-heats when in contact with water, and the heat is transferred to the heating box body.

[0007] By adopting the above technical solution, when the food in the heating box needs to be heated and eaten, the heating box is lifted up by using the box eaves, the placement port of the water injection base is opened, and water is injected into the water injection base. The self-heating bag releases a large amount of heat when it meets water. Then the heating box is placed back on the support column of the water injection base, and the heat is transferred to the heating box to heat the food. There is no need to use heating materials such as open flames or alcohol lamps, so that fire will not occur and safety hazards are reduced. At the same time, there is no open flame and the flame will not be affected by wind and other factors to make it flicker, which also ensures the even transfer of heat.

[0008] Optionally, water filling scales are engraved inside the water filling base.

[0009] By adopting the above technical solution and setting the water filling scale, the user can more intuitively understand how much water needs to be injected to meet the heating conditions of the self-heating bag.

[0010] Optionally, a plurality of anti-slip grooves and limiting parts are arranged in the heating box body.

[0011] By adopting the above technical solution, the anti-slip pattern and the limiting part can increase the friction when placing food such as grilled fish in the heating box body. The limiting part blocks the falling path and reduces the situation of falling out of the heating box body due to random sliding.

[0012] Optionally, a vent is provided on the heating box body.

[0013] By adopting the above technical solution, the vents can be used to adjust the temperature inside the heating box to prevent overheating.

[0014] Optionally, the heating box body is in a trapezoidal shape, and the size of one end close to the water injection base is smaller than that of one end of the box opening.

[0015] By adopting the above technical solution, the trapezoidal shape of the heating box body can make it easy to put in the end close to the water injection base, thereby improving convenience.

[0016] Optionally, a fixing frame is provided at the box eaves.

[0017] By adopting the above technical solution, the main function of the fixing frame is to provide reinforcement for the outer frame of the heating box body, increase the compression and bending resistance of the heating box body, and make the heating box body safer and more stable to use.

[0018] Optionally, a hanging ear is hinged on the fixing frame.

[0019] By adopting the above technical solution, the hanging ears are used to lift the entire heating box body when the heating box body is too hot or the hot steam is too hot, so as to avoid contact with the heating box body and thus not be affected by high temperature.

[0020] Optionally, a hook is provided on the outer wall of the water injection base, and the hook is buckled with the hanging ear.

[0021] By adopting the above technical solution, the hanging ear is buckled on the hook, so that the heating box body can be firmly connected to the water-filled base by the pulling force of the hanging ear, which is convenient for the integrated connection of the heating box body and the water-filled base during take-out delivery, while avoiding deviation or overturning and separation, thereby ensuring integrity and stability.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. When the food in the heating box needs to be heated for consumption, the heating box is lifted up by the box eaves, the placement port of the water injection base is opened, and water is injected into the water injection base. The self-heating bag releases a large amount of heat when it meets water, and then the heating box is placed back on the support column of the water injection base. The heat is transferred to the heating box to heat the food. There is no need to use heating materials such as open flames or alcohol lamps, so there will be no fire, reducing safety hazards. At the same time, there is no open flame and the flame will not be affected by wind, etc., which can also ensure the average transfer of heat.

[0024] 2. After setting the water filling scale, users can more intuitively understand how much water is needed to meet the heating conditions of the self-heating bag;

[0025] 3. Anti-slip patterns and limiters can increase friction when placing food such as grilled fish in the heating box. The limiters block the falling path and reduce the situation of falling out of the heating box due to random sliding;

[0026] 4. The main function of the fixed frame is to provide reinforcement for the outer frame of the heating box, increase the compression and bending resistance of the heating box, and make the heating box safer and more stable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of a first cross-sectional structure of a lunch box in one embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of a first top view structure of a heating lunch box in some embodiments of the present application;

[0029] Figure 3 is a schematic diagram of a second cross-sectional structure of a lunch box in some embodiments of the present application;

[0030] Figure 4 is a schematic diagram of a second top view structure of a heating lunch box in some embodiments of the present application;

[0031] The marks in the attached drawings are: 1. water filling base, 11. placement port, 12. support column, 13. water filling scale, 14. hook, 2. heating box body, 21. box eaves, 22. anti-slip pattern, 23. limit part, 24. ventilation port, 25. fixing frame, 26. hanging ear, 3. self-heating bag. DETAILED DESCRIPTION

[0032] The following is an explanation of the implementation of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through other different specific implementations, and the details in the present application can also be modified or changed in various ways according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0033] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in a variety of different forms and is not limited to the embodiments described herein.

[0034] In the representations of the present application, the representations with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the represented specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples represented in the present application and the features of the different embodiments or examples, unless they contradict each other.

[0035] In addition, the terms "first" and "second" are only used to indicate the target, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the representation of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0037] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0038] The embodiment of the present application discloses a self-heating disposable lunch box.

[0039] A self-heating disposable lunch box, which is mainly used for foods such as crayfish and grilled fish, and is convenient for take-out packaging and transportation.

[0040] refer to Figure 1 As shown, it includes a water filling base 1, a heating box body 2 and a self-heating bag 3; a placement opening 11 is opened on the top of the water filling base 1, and a plurality of support columns 12 are arranged on the inner wall, and the bottom of the water filling base 1 is a closed structure, and only the placement opening 11 on the top can be used to pour water or place other items.

[0041] When the heating box body 2 is connected to the water injection base 1, it only needs to be placed on a number of support columns 12, and the outer wall of the heating box body 2 is against the inner wall of the water injection base 1 above the support columns 12, while covering the placement opening 11 to prevent heat leakage during heating. A closing cover can be provided at the box opening of the heating box body 2, and the closing cover can be buckled during transportation to close the box opening to prevent food from falling from the box opening of the heating box body 2 due to bumps or tipping during delivery.

[0042] The heating box body 2 may be made of an aluminum structure or other metal materials that meet food requirements. Aluminum has good thermal conductivity and can provide stable and good heat conduction when heated to heat the food in the heating box body 2.

[0043] A box eave 21 is provided at the box opening of the heating box body 2 at one end away from the water filling base 1. The box eave 21 extends outward from the heating box body 2 to provide a lifting fulcrum, which facilitates the heating box body 2 with food or food residues to be picked up and transported to the water filling base 1 or other locations such as garbage recycling sites. At the same time, it also provides a certain heat insulation and anti-scalding effect to increase safety.

[0044] The self-heating bag 3 is placed in the water-filled base 1. When not in use or during transportation, it is placed in the water-filled base 1, and the placement port 11 is covered by the heating box body 2 to prevent the self-heating bag 3 from falling. When in use, water is injected into the water-filled base 1. The self-heating bag 3 heats up when it meets water, and the heat is transferred to the heating box body 2, so that the food in the heating box body 2 can be heated.

[0045] Among them, the self-heating bag 3 is composed of quicklime inside, sealed with non-woven fabric outside, and then wrapped with OPP film. Since the non-woven fabric does not isolate water, a large amount of heat will be released when the self-heating bag 3 comes into contact with water, and the heating box body 2 covers the placement port 11, so the large amount of heat released by the heating bag can heat the heating box body 2 and the food inside.

[0046] Specifically, the food is placed in the heating box body 2 and the box opening is closed, and then the heating box body 2 is placed on the support column 12 in the placement opening 11 using the box eaves 21, while covering the placement opening 11, and the self-heating bag 3 is temporarily sealed in the water-filled base 1, and the disposable lunch box can be transported.

[0047] When the food in the heating box body 2 needs to be heated and eaten, the heating box body 2 is lifted up using the box eaves 21, the placement port 11 of the water injection base 1 is opened, and water is injected into the water injection base 1. The self-heating bag 3 releases a large amount of heat when it meets water, and then the heating box body 2 is placed back on the supporting column 12 of the water injection base 1. The heat is conducted to the heating box body 2 to heat the food. There is no need to use heating materials such as open flames or alcohol lamps, so there will be no fire, reducing safety hazards. At the same time, there is no open flame and the flame will not be affected by wind, etc., which makes the flame flickering, and the even transfer of heat is also guaranteed.

[0048] Furthermore, a water filling scale 13 is engraved in the water filling base 1. After setting the water filling scale 13, the user can more intuitively understand how much water needs to be injected to meet the heating conditions of the self-heating bag 3, thereby avoiding the situation where the user injects too little water, resulting in incomplete heat release and reduced heating effect, or injects too much water, causing the self-heating bag 3 to expand, which will push open the heating box body 2 to provide stable heating.

[0049] Further, refer to Figure 2 As shown, the heating box body 2 is provided with anti-slip grooves 22 and a limiting portion 23, which can increase friction when placing foods such as grilled fish in the heating box body 2. The limiting portion 23 blocks the falling path and reduces the situation where the food falls out of the heating box body 2 due to random sliding. The limiting portion 23 can be composed of a plurality of limiting columns.

[0050] Furthermore, the heating box body 2 is provided with a vent 24, that is, the vent 24 is provided on the closing cover of the heating box body 2 or at the connection point between the closing cover and the heating box body 2, so as to avoid the heat of the food inside the heating box body 2 in a sealed state, resulting in excessive water vapor and affecting the taste of the food. At the same time, it also prevents the situation where the air pressure is too high and causes the heating box body 2 to separate from the closing cover. It can also be used to adjust the temperature inside the heating box body 2 to prevent overheating.

[0051] Among them, reference Figure 1 As shown, the heating box body 2 is a trapezoidal body, and the size of the end close to the water injection base 1 is smaller than the end of the box mouth. The trapezoidal shape of the heating box body 2 can make it easy to put in the end close to the water injection base 1, avoiding the need to align with the placement opening 11 of the water injection base 1 when the sizes are consistent, thereby improving convenience. After placement, when the bottom of the heating box body 2 abuts against the support column 12, the outer wall of the trapezoidal body can just abut against the wall of the placement opening 11, and the heating box body 2 can be placed and shaken at will.

[0052] Among them, a ventilation gap is provided on the inner wall of the heating box body 2 close to the water injection base 1, so that when the self-heating bag 3 generates a large amount of heat when it meets water, it will also generate a large amount of water vapor. The ventilation gap is used to play a partial exhaust role, avoiding excessive water vapor from affecting the use of the heating box body 2 and improving the stability of the heating box body 2 during heating.

[0053] In some embodiments, reference Figure 3 As shown, a fixing frame 25 is provided at the box eaves 21. The fixing frame 25 can be made of a wooden frame or PP material. The fixing frame 25 is installed below the box eaves 21 and does not contact the food. Its main function is to provide reinforcement for the outer frame of the heating box body 2. Generally, when grilled fish or crayfish and other foods are contained, the size of the heating box body 2 is relatively long. When it needs to be lifted, the weight of the food in the heating box body 2 is too heavy, and the entire heating box body 2 is easily bent, causing the food to fall. Therefore, the fixing frame 25 is used to increase the compression and bending resistance of the heating box body 2, making the heating box body 2 safer and more stable to use.

[0054] For further reference, Figure 3 and Figure 4 As shown, a hanging ear 26 is hinged on the fixed frame 25. The hanging ear 26 can be made of metal wire or plastic wire, such as steel wire, aluminum wire, plastic rope, etc., and is used to lift the entire heating box body 2 using the hanging ear 26 when the heating box body 2 is overheated or the hot steam is overheated, avoiding contact with the heating box body 2 so that it will not be affected by high temperature, thereby improving the safety of the mobile heating box body 2 and facilitating use.

[0055] Further, refer to Figure 3 As shown, a hook 14 is provided on the outer wall of the water-filling base 1. When the heating box body 2 is placed in the water-filling base 1, the hook 14 can be buckled with the hanging ear 26. The hanging ear 26 is buckled on the hook 14, so that the heating box body 2 can be firmly connected to the water-filling base 1 by the pulling force of the hanging ear 26. During the delivery of takeout, the heating box body 2 and the water-filling base 1 are conveniently connected as one piece, and at the same time, deviation or overturning and separation are avoided, thereby ensuring integrity and stability.

[0056] When eating the food in the heating box body 2, the hanging ear 26 can also be hung on the hook 14, so that the hanging ear 26 does not affect the eating of the food and does not come into contact with the food. When the heating box body 2 needs to be separated from the water injection base 1, the hanging ear 26 can be taken out from the hook 14.

[0057] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-heating disposable lunch box, characterized in that: The invention comprises a water injection base (1), a heating box body (2) and a self-heating bag (3); the water injection base (1) is provided with a placement opening (11) at the top and a plurality of support columns (12) on the inner wall; the heating box body (2) is placed on the plurality of support columns (12) and covers the placement opening (11); a box eave (21) is provided at the box opening of the heating box body (2) at one end away from the water injection base (1); the self-heating bag (3) is placed in the water injection base (1); when in use, water is injected into the water injection base (1), the self-heating bag (3) heats itself when in contact with water, and the heat is transferred to the heating box body (2).

2. A self-heating disposable lunch box according to claim 1, characterized in that: The water filling base (1) is engraved with a water filling scale (13).

3. A self-heating disposable lunch box according to claim 1, characterized in that: A plurality of anti-slip grooves (22) and limiting portions (23) are arranged inside the heating box body (2).

4. A self-heating disposable lunch box according to claim 1, characterized in that: The heating box body (2) is provided with a ventilation hole (24).

5. The self-heating disposable lunch box according to claim 1, characterized in that: The heating box body (2) is in the shape of a trapezoid, and the size of one end close to the water injection base (1) is smaller than that of the box opening.

6. A self-heating disposable lunch box according to any one of claims 1 to 5, characterized in that: A fixing frame (25) is provided at the box eaves (21).

7. A self-heating disposable lunch box according to claim 6, characterized in that: A hanging ear (26) is hingedly connected to the fixing frame (25).

8. A self-heating disposable lunch box according to claim 7, characterized in that: The outer wall of the water injection base (1) is provided with a hook (14), and the hook (14) is buckled with the hook ear (26).

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