Portable lunch box

Abstract

The utility model discloses a portable lunch box which comprises a box body and a top cover, the top of the box body is connected with the top cover through threads, a first inner container, a second inner container and a third inner container are sequentially arranged in the box body from top to bottom, a limiting groove is formed in the bottom in the box body, the first inner container is placed in the limiting groove, a first heat conduction column is arranged in the first inner container, and a second heat conduction column is arranged in the second inner container. A first outer thread is arranged on the outer surface of the top of the first heat conduction column, a second heat conduction column is arranged in the second inner container, a second outer thread is arranged on the outer wall of the top of the second heat conduction column, the interior of the second heat conduction column is divided into a first upper cavity and a first lower cavity through a first partition plate, and a first inner thread is arranged on the inner wall of the first lower cavity. The inside of the third heat conduction column is divided into a second upper cavity and a second lower cavity through a second partition plate, and the inner wall of the second lower cavity is provided with a second internal thread. Food can be heated at any time through the lunch box, the inner container is firmly and stably placed in the lunch box, and the lunch box is convenient to carry when people go out.

Description

Technical Field

[0001] The utility model relates to the technical field of lunch boxes, in particular to a portable lunch box. Background Art

[0002] A lunch box is a box specially used to hold food, also known as a lunch box, which is mostly made of aluminum, stainless steel, or plastic. As people's pace of life continues to accelerate and food safety is increasingly valued, more and more people choose to carry their own food when going out, and put the food in a lunch box for easy carrying. In the utility model patent with the authorized public number CN219661115U, a new type of convenient lunch box is disclosed, including a lunch box body, a clamping ring is arranged at the top opening of the lunch box body, a lunch box cover is also arranged on the lunch box body, a sealing gasket is arranged on the lunch box cover, a clamping plate is also arranged on the lunch box cover through a rotating shaft, and a sealing plate is arranged through an elastic hinge, a vent is arranged on the lunch box cover, a sliding box is arranged on the lunch box body through a second partition, a first placement bin, a second placement bin, a first placement rack and a second placement rack are arranged on the sliding box, and a handle is also arranged on the top of the sliding box through a rotating shaft. Under the action of the clamping plate and the clamping ring, the lunch box cover can play a good protective role on the food inside the lunch box body. When used with the sealing gasket vent and the sealing plate, it can not only keep the food warm but also ensure the taste of the food. Under the action of the sliding box, the convenience of carrying tableware and the applicability of the lunch box are improved. Although the above device improves the heat preservation effect and portability of the food in the lunch box, the temperature of the food in the lunch box will drop over time. In the absence of a microwave oven, the food in the lunch box cannot be reheated, which affects the taste of the food. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a convenient lunch box.

[0004] The utility model adopts the following technical solutions:

[0005] A convenient lunch box comprises a box body and a top cover, wherein the top of the box body is connected to the top cover by threads, and inner liner 1, inner liner 2 and inner liner 3 are sequentially arranged in the box body from top to bottom, and a limiting groove is arranged at the bottom of the box body, and inner liner 1 is placed in the limiting groove, and a heat-conducting column 1 is arranged in the inner liner 1, and the top outer surface of the heat-conducting column 1 is an external thread 1, and a heat-conducting column 2 is arranged in the inner liner 2, and the top outer wall of the heat-conducting column 2 is an external thread 2, and the inside of the heat-conducting column 2 is divided into an upper chamber 1 and a lower chamber 1 by a partition plate 1, and the inner wall of the lower chamber 1 is an internal thread 1, and a heat-conducting column 3 is arranged in the inner liner 3, and the inside of the heat-conducting column 3 is divided into an upper chamber 2 and a lower chamber 2 by a partition plate 2, and the inner wall of the lower chamber 2 is an internal thread 2.

[0006] As a preferred technical solution of the utility model, the first external thread is threadedly connected to the first internal thread, and the second external thread is threadedly connected to the second internal thread.

[0007] As a preferred technical solution of the utility model, the top of the heat-conducting column one is provided with an opening plate one, the top of the heat-conducting column two is provided with an opening plate two, and the top of the heat-conducting column three is provided with an opening plate three.

[0008] As an optimal technical solution of the utility model, the heat-conducting column one, heat-conducting column two, and heat-conducting column three are respectively arranged in the middle position inside the inner liner one, inner liner two, and inner liner three. The heat-conducting column one, heat-conducting column two, and heat-conducting column three are all cylindrical in shape. The diameter of the heat-conducting column one is greater than the diameter of the heat-conducting column two, and the diameter of the heat-conducting column two is greater than the diameter of the heat-conducting column three.

[0009] As an optimal technical solution of the utility model, the heat-conducting column 1, the heat-conducting column 2 and the heat-conducting column 3 are all made of aluminum plates, and a mixture of solid sodium carbonate, silica and iron powder is placed in the heat-conducting column 1, the upper chamber 1 and the upper chamber 2.

[0010] The beneficial effects of the utility model are:

[0011] The utility model provides a lunch box with a plurality of inner liner, each of which is provided with a heat-conducting column, which can heat the food in the inner liner at any time, conveniently and quickly; at the same time, each heat-conducting column can connect its own inner liner through a thread, and the limiting groove at the bottom of the box body can achieve a stable effect, which is convenient for carrying outside as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall front view of the lunch box of the utility model;

[0013] Figure 2 This is an exploded view of the three inner containers of the lunch box of the utility model;

[0014] Figure 3 The utility model is a top view of the inner liner of the lunch box.

[0015] Explanation of symbols in the figure:

[0016] 1: box body, 101: limiting groove, 2: top cover, 3: liner one, 301: thermal conductive column one, 302: external thread one, 303: opening plate one, 4: liner two, 401: thermal conductive column two, 402: partition plate one, 403: upper chamber one, 404: lower chamber one, 405: internal thread one, 406: external thread two, 407: opening plate two, 5: liner three, 501: thermal conductive column three, 502: partition plate two, 503: upper chamber two, 504: lower chamber two, 505: internal thread two, 506: opening plate three. DETAILED DESCRIPTION

[0017] The utility model is now described in further detail with reference to the accompanying drawings.

[0018] In the embodiments, it should be understood that the terms "middle", "upper", "lower", "top", "bottom", "right", "left", "above", "below", "back", "front", "middle", "outside", "inside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments.

[0019] like Figures 1 to 3 As shown, a convenient lunch box comprises a box body 1 and a top cover 2, wherein the top of the box body 1 is connected to the top cover 2 by threads, wherein the box body 1 is provided with an inner liner 3, an inner liner 2 4, and an inner liner 3 5 in sequence from top to bottom, wherein a limiting groove 101 is provided at the bottom of the box body 1, wherein the inner liner 3 is placed in the limiting groove 101, so that the inner liner 3 can be fixed at the bottom of the box body 1 without moving, wherein a heat conducting column 301 is provided in the inner liner 3, wherein the outer surface of the top of the heat conducting column 301 is an outer thread 302, wherein the inner liner 301 is provided with an outer thread 303, wherein the inner liner 301 is provided with an outer thread 304, wherein the inner liner 301 is provided with an outer thread 305, wherein the inner liner 301 is provided with an outer thread 306, wherein the inner liner 301 is provided with an outer thread 307, wherein the inner liner 301 is provided with an outer thread 308, wherein the inner liner 301 is provided with an outer thread 309 ...9, wherein the inner liner 301 is provided with an outer thread 309, wherein the inner liner A heat-conducting column 401 is arranged inside the inner liner 4, and the top outer wall of the heat-conducting column 401 is an external thread 406. The heat-conducting column 401 is divided into an upper chamber 403 and a lower chamber 404 by a partition plate 402, and the inner wall of the lower chamber 404 is an internal thread 405. A heat-conducting column 501 is arranged inside the inner liner 5, and the heat-conducting column 501 is divided into an upper chamber 503 and a lower chamber 504 by a partition plate 502, and the inner wall of the lower chamber 504 is an internal thread 505.

[0020] Furthermore, the external thread 1 302 is threadedly connected to the internal thread 1 405 , and the external thread 2 406 is threadedly connected to the internal thread 2 505 .

[0021] Furthermore, an opening plate 303 is provided on the top of the heat-conducting column 1 301, through which a mixture of solid sodium carbonate, silica and iron powder and water can be put into the heat-conducting column 1 301 for reaction or to replace the mixture after the reaction; an opening plate 407 is provided on the top of the heat-conducting column 2 401, through which a mixture of solid sodium carbonate, silica and iron powder and water can be put into the upper chamber 1 403 for reaction or to replace the mixture after the reaction; and an opening plate 3 506 is provided on the top of the heat-conducting column 3 501, through which a mixture of solid sodium carbonate, silica and iron powder and water can be put into the upper chamber 2 503 for reaction or to replace the mixture after the reaction.

[0022] Furthermore, the heat-conducting column 1 301, the heat-conducting column 2 401, and the heat-conducting column 3 501 are respectively arranged in the middle position of the inner liner 1 3, the inner liner 2 4, and the inner liner 3 5, and the heat-conducting column 1 301, the heat-conducting column 2 401, and the heat-conducting column 3 501 are all cylindrical in shape, and the diameter of the heat-conducting column 1 301 is greater than the diameter of the heat-conducting column 2 401, and the diameter of the heat-conducting column 2 401 is greater than the diameter of the heat-conducting column 3 501.

[0023] Furthermore, the heat-conducting column 1 301, the heat-conducting column 2 401, and the heat-conducting column 3 501 are all made of aluminum plates, which have good thermal conductivity and are harmless. The heat-conducting column 1 301, the upper chamber 1 403, and the upper chamber 2 503 are all filled with a mixture of solid sodium carbonate, silica, and iron powder.

[0024] The use principle of this utility model:

[0025] When it is necessary to heat the food in the inner liner of the lunch box, rotate and twist the inner liner three 5 out from the inner liner two 4, then rotate and twist the inner liner two 4 out from the inner liner one 3, and then open the opening plate one 303, the opening plate two 407, and the opening plate three 506 respectively, and add a proper amount of water into them. The solid sodium carbonate, silica and iron powder mixture in them reacts with water and releases a large amount of heat. The heat is conducted along the heat conducting column, and the food contacts the heat conducting column and exchanges heat to achieve the effect of heating the food. The food in the inner liner one 3, the inner liner two 4, and the inner liner three 5 is continuously stirred with chopsticks or a spoon to make the food heated more evenly.

[0026] Finally, it should be noted that these embodiments are only used to illustrate the present invention and do not limit the scope of the present invention. In addition, for those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. The obvious changes or modifications derived from them are still within the scope of protection of the present invention.

Claims

1. A portable lunch box, comprising a box body (1) and a top cover (2), wherein the top of the box body (1) is connected to the top cover (2) by threads, and characterized in that: The box body (1) is provided with inner liner one (3), inner liner two (4), and inner liner three (5) in order from top to bottom; a limiting groove (101) is provided at the bottom of the box body (1); the inner liner one (3) is placed in the limiting groove (101); a heat-conducting column one (301) is provided in the inner liner one (3); the outer surface of the top of the heat-conducting column one (301) is an external thread one (302); a heat-conducting column two (401) is provided in the inner liner two (4); the outer wall of the top of the heat-conducting column two (401) is an external thread one (302); Thread two (406), the inside of the heat-conducting column two (401) is divided into an upper chamber one (403) and a lower chamber one (404) by a partition plate one (402), and the inner wall of the lower chamber one (404) is an internal thread one (405), and the inner tank three (5) is provided with a heat-conducting column three (501), and the inside of the heat-conducting column three (501) is divided into an upper chamber two (503) and a lower chamber two (504) by a partition plate two (502), and the inner wall of the lower chamber two (504) is an internal thread two (505).

2. A convenient lunch box according to claim 1, characterized in that: The first external thread (302) is threadedly connected to the first internal thread (405), and the second external thread (406) is threadedly connected to the second internal thread (505).

3. A convenient lunch box according to claim 1, characterized in that: The top of the heat-conducting column 1 (301) is provided with an opening plate 1 (303), the top of the heat-conducting column 2 (401) is provided with an opening plate 2 (407), and the top of the heat-conducting column 3 (501) is provided with an opening plate 3 (506).

4. A portable lunch box according to claim 1, characterized in that: The heat-conducting column one (301), the heat-conducting column two (401), and the heat-conducting column three (501) are respectively arranged in the middle position of the inner liner one (3), the inner liner two (4), and the inner liner three (5); the heat-conducting column one (301), the heat-conducting column two (401), and the heat-conducting column three (501) are all cylindrical in shape; the diameter of the heat-conducting column one (301) is greater than the diameter of the heat-conducting column two (401), and the diameter of the heat-conducting column two (401) is greater than the diameter of the heat-conducting column three (501).

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