Disposable heat preservation lunch box with independent hot water storage interlayer

Abstract

The utility model discloses a disposable heat preservation lunch box with an independent hot water storage interlayer, and belongs to the technical field of disposable heat preservation lunch boxes. The disposable heat preservation lunch box with the independent hot water storage interlayer comprises an outer heat preservation box, an inner heat preservation box is arranged in the outer heat preservation box, the upper portion of the outer heat preservation box and the upper portion of the inner heat preservation box are fixedly connected with a box cover, and the outer heat preservation box is fixedly connected with the inner heat preservation box through a connecting piece. According to the disposable heat preservation lunch box, heat is not prone to loss through the inner heat preservation box and the outer heat preservation box, hot water heats the inner heat preservation box, the heat preservation capacity of the disposable heat preservation box is good, the internal hot water can be replaced through the drainage pipe, and a user can prolong the heat preservation time by replacing the hot water; the inner heat preservation box is fixedly connected through the connecting piece, so that the outer heat preservation box and the inner heat preservation box are fixedly connected and are not prone to being separated in the transportation process, the hot water sealing effect is good, and hot water is not prone to entering food.

Description

Technical Field

[0001] This utility model relates to the field of disposable insulated lunch boxes, and more specifically, to disposable insulated lunch boxes with an independent hot water storage layer. Background Technology

[0002] Disposable insulated food containers, as a type of disposable tableware with heat preservation function, are mainly used to maintain the temperature of food for a short time. Chinese Patent Publication No. CN218185648U discloses a disposable insulated food container with a hot water storage layer. This food container belongs to the field of disposable insulated food containers. Its structure includes a connecting block fixedly installed on the upper end of the lower box body. An upper box cover is provided above the connecting block. The lower box body has a food area, a tableware area, and a groove inside. The upper end of the groove is connected to a movable block through a shaft. The surface of the movable block has vent holes. A vent membrane is connected to the inside of the vent holes. A hot water layer is provided in the groove, and a heating pack can also be placed there.

[0003] The aforementioned technical solution aims to achieve heat preservation using a heating pack and a breathable membrane. Specifically, hot water is added to the groove, and the heating pack is placed inside. The groove is then sealed with a movable block, and hot air is transported through the vents and the breathable membrane to keep the food inside the box warm. The initial intention was to prevent the food from cooling down and affecting its taste through this heating structure. However, in practical applications, this design has significant flaws: for short-distance transportation scenarios, hot water itself is sufficient to meet the heating and heat preservation needs. The heating pack is not only redundant and increases costs, but also poses serious safety hazards. During transportation, the heating pack may rupture or leak, causing internal chemicals to come into contact with the food, resulting in direct contamination and greatly affecting the user experience.

[0004] To address the aforementioned issues and improve the heat preservation capabilities of disposable insulated boxes for short-distance transportation, this application proposes a disposable insulated lunch box with an independent hot water storage compartment. Utility Model Content

[0005] The purpose of this invention is to provide a disposable insulated lunch box with an independent hot water storage compartment, in order to solve the problems mentioned in the background art above:

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A disposable insulated lunch box with an independent hot water storage compartment includes an outer insulated box and an inner insulated box inside the outer insulated box. A lid is fixedly connected to the upper part of the outer insulated box and the inner insulated box. The outer insulated box is fixedly connected to the inner insulated box through a connector.

[0008] Hot water is provided at the bottom of the outer insulation box, the inner insulation box is located above the hot water, an outer support platform is fixedly connected to the upper part of the outer insulation box, an inner support platform is fixedly connected to the upper part of the inner insulation box, and the inner support platform is movably installed on the outer support platform.

[0009] A drain pipe is fixedly connected to the lower part of the outer insulation box, and a connecting seat is fixedly connected to the bottom surface of the inner insulation box. The connector is inserted into the drain pipe, and the connector is threadedly connected to the connecting seat through a threaded post.

[0010] By adopting the above technical solution, the efficiency of heat loss is reduced by using the inner and outer insulation boxes. Hot water heats the inner insulation box placed inside, making the insulation efficiency of the insulation box better. The hot water can be discharged through the drain pipe, making it easy to replace the hot water.

[0011] Preferably, the upper end of the outer insulation box is fixedly connected to an outer locking part, and the upper end of the inner insulation box is fixedly connected to an inner locking part.

[0012] By adopting the above technical solution, the inner and outer locking parts are located at the same height, which facilitates the fitting with the lid.

[0013] Preferably, the lid has an outer locking groove, and the lid has an inner locking groove located inside the outer locking groove. The lid engages with the outer locking part through the outer locking groove, and the lid engages with the inner locking part through the inner locking groove.

[0014] By adopting the above technical solution, the lid is fixedly connected to the outer insulation box and the inner insulation box by snap-fit.

[0015] Preferably, a first sealing gasket is fixedly connected to the outer support platform, and the inner support platform is located above the first sealing gasket.

[0016] By adopting the above technical solution, the No. 1 sealing gasket is used to prevent hot water from flowing out from the gap between the outer insulation box and the inner insulation box.

[0017] Preferably, a reinforcing rib is fixedly connected to the side of the drain pipe, a flange is fixedly connected to one end of the drain pipe, a sealing plate is fixedly connected to one end of the connector, a second sealing gasket is fixedly connected to one side of the sealing plate, and a handle is fixedly connected to the other side of the sealing plate. The sealing plate is in contact with the flange through the second sealing gasket.

[0018] By adopting the above technical solution, the reinforcing ribs enhance the toughness of the drainage pipe, and the flange increases the contact area with the No. 2 sealing gasket, thereby improving the sealing effect.

[0019] Preferably, the connector has a connecting screw hole, and a threaded post is fixedly connected to the connector, with the threaded post threadedly connected to the connecting screw hole.

[0020] By adopting the above technical solution and connecting screw holes, the connectors are easy to install and disassemble.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1) This disposable insulated lunch box prevents heat loss through its inner and outer insulation boxes. The outer insulation box contains hot water to heat the inner insulation box, resulting in better heat preservation.

[0023] 2) The connector inside the drain pipe of this disposable insulated lunch box is easy to install and disassemble, making it easy to replace the hot water inside. After receiving the disposable insulated lunch box, users can extend the insulation time of the disposable insulated lunch box by replacing the hot water. The connector is fixedly connected to the inner insulated box, making the structure more stable and the outer insulated box and the inner insulated box not easy to separate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the box lid of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the inner insulation box of this utility model located inside the outer insulation box;

[0027] Figure 4 This is a schematic diagram of the structure of the outer insulation box of this utility model;

[0028] Figure 5 This is a cross-sectional structural diagram of the inner insulation box of this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the connector of this utility model.

[0030] The following are the labels in the diagram: 1. Outer insulation box; 101. Outer support platform; 102. No. 1 sealing gasket; 103. Drain pipe; 104. Reinforcing rib; 105. Flange; 106. Outer locking part; 2. Inner insulation box; 201. Inner support platform; 202. Connecting seat; 203. Connecting screw hole; 204. Inner locking part; 3. Box cover; 301. Outer locking groove; 302. Inner locking groove; 4. Connector; 401. Threaded post; 402. Sealing plate; 403. No. 2 sealing gasket; 404. Handle. Detailed Implementation

[0031] Example 1

[0032] Please see Figures 1 to 5 A disposable insulated lunch box with an independent hot water storage compartment includes an outer insulated box 1 and an inner insulated box 2 inside the outer insulated box 1. The double-layer structure makes it difficult for heat to dissipate. A lid 3 is fixedly connected to the upper part of the outer insulated box 1 and the inner insulated box 2. The lid 3 can seal the outer insulated box 1 and the inner insulated box 2. The outer insulated box 1 is fixedly connected to the inner insulated box 2 through a connector 4 to improve the stability of the connection between the two.

[0033] Hot water is provided at the bottom of the outer insulation box 1, and the inner insulation box 2 is located above the hot water. The hot water is used to heat the inner insulation box 2 or maintain the insulation effect. An outer support platform 101 is fixedly connected to the upper part of the outer insulation box 1, and an inner support platform 201 is fixedly connected to the upper part of the inner insulation box 2. The inner support platform 201 is movably installed on the outer support platform 101. The outer support platform 101 and the inner support platform 201 support each other, so that the inner insulation box 2 can be suspended in the air, forming a space between it and the outer insulation box 1, which is convenient for storing hot water.

[0034] The upper end of the outer insulation box 1 is fixedly connected to the outer locking part 106, and the upper end of the inner insulation box 2 is fixedly connected to the inner locking part 204, providing conditions for the connection of the box lid 3.

[0035] The lid 3 has an outer locking groove 301 and an inner locking groove 302 located inside the outer locking groove 301. The outer locking groove 301, the inner locking groove 302 and the outer locking part 106 and the inner locking part 204 are positioned to correspond to each other. The lid 3 is engaged with the outer locking part 106 through the outer locking groove 301 and with the inner locking part 204 through the inner locking groove 302.

[0036] A first sealing gasket 102 is fixedly connected to the outer support platform 101. The inner support platform 201 is located above the first sealing gasket 102, sealing the connection gap between the outer support platform 101 and the inner support platform 201 to prevent hot water from flowing out from the gap between the two.

[0037] The steps of using this utility model are as follows: The inner heat preservation box 2 is located inside the outer heat preservation box 1. The outer heat preservation box 1 is sealed to the inner support platform 201 of the inner heat preservation box 2 by the first sealing gasket 102 on the outer support platform 101, so that the hot water inside the outer heat preservation box 1 located below the first sealing gasket 102 is not easy to overflow upwards. The hot water heats the food inside the inner heat preservation box 2. The outer heat preservation box 1 reduces the efficiency of heat loss to the outside, making the heat preservation effect of the disposable heat preservation box better. The lid 3 is simultaneously engaged with the outer locking part 106 and the inner locking part 204 by the outer locking groove 301 and the inner locking groove 302, making the lid 3 easy to install and remove.

[0038] Example 2

[0039] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The difference from embodiment 1 is that a drain pipe 103 is fixedly connected to the lower part of the outer insulation box 1, and the drain pipe 103 discharges hot water outward. A connecting seat 202 is fixedly connected to the bottom of the inner insulation box 2. The connecting piece 4 is inserted into the drain pipe 103, and the connecting piece 4 is threadedly connected to the connecting seat 202 through a threaded post 401, so that the connecting piece 4 fixes the outer insulation box 1 and the inner insulation box 2 together and makes them difficult to separate.

[0040] A reinforcing rib 104 is fixedly connected to the side of the drain pipe 103 to enhance its toughness and prevent deformation of the flange 105 and the drain pipe 103. A flange 105 is fixedly connected to one end of the drain pipe 103, and a sealing plate 402 is fixedly connected to one end of the connector 4. A second sealing gasket 403 is fixedly connected to one side of the sealing plate 402 to increase the contact area and improve the sealing effect. A handle 404 is fixedly connected to the other side of the sealing plate 402 to facilitate the operation of the connector 4. The sealing plate 402 is in contact with the flange 105 through the second sealing gasket 403.

[0041] The connector 4 is provided with a connecting screw hole 203, and a threaded post 401 is fixedly connected to the connector 4. The threaded post 401 is threaded into the connecting screw hole 203, so that the connector 4 can be easily installed and disassembled with the connector 202.

[0042] The steps for using this utility model are as follows: The outer insulation box 1 and the inner insulation box 2 are made of transparent materials such as polypropylene, making it easy to observe the height of the hot water liquid level and the position of the connecting seat 202. The inner insulation box 2 is placed inside the outer insulation box 1, and the outer locking part 106 and the inner locking part 204 are locked together by the box cover 3. Then, the outer insulation box 1 and the inner insulation box 2 are tilted, and hot water is poured into the outer insulation box 1 through the drain pipe 103, so that the hot water heats the inner insulation box 2. Then, the connecting piece 4 is inserted into the drain pipe. In section 103, the threaded post 401 and the connecting screw hole 203 of the connecting seat 202 are threadedly connected to each other. The sealing plate 402 of the connector 4 seals the flange 105 through the second sealing gasket 403, so that the drain pipe 103 is sealed and hot water cannot flow out from the drain pipe 103. The outer insulation box 1 and the inner insulation box 2 are fixedly connected to each other through the connector 4. They are not easy to separate during transportation. When hot water needs to be drained, the connector 4 is unscrewed in the reverse direction and the hot water can be drained through the drain pipe 103.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Disposable thermal lunch box with independent hot water storage interlayer, comprising an outer thermal box (1), characterized in that: The outer insulation box (1) is provided with an inner insulation box (2). The upper part of the outer insulation box (1) and the inner insulation box (2) are fixedly connected to the box cover (3). The outer insulation box (1) is fixedly connected to the inner insulation box (2) through a connector (4). Hot water is provided at the bottom of the outer insulation box (1), and the inner insulation box (2) is located above the hot water. An outer support platform (101) is fixedly connected to the upper part of the outer insulation box (1), and an inner support platform (201) is fixedly connected to the upper part of the inner insulation box (2). The inner support platform (201) is movably installed on the outer support platform (101). A drain pipe (103) is fixedly connected to the lower part of the outer insulation box (1), and a connecting seat (202) is fixedly connected to the bottom of the inner insulation box (2). The connecting piece (4) is inserted into the drain pipe (103), and the connecting piece (4) is threadedly connected to the connecting seat (202) through a threaded post (401).

2. The disposable thermal lunch box with independent hot water storage interlayer according to claim 1, characterized in that: The upper end of the outer insulation box (1) is fixedly connected to an outer locking part (106), and the upper end of the inner insulation box (2) is fixedly connected to an inner locking part (204).

3. The disposable thermal lunch box with independent hot water storage interlayer according to claim 1, characterized in that: The cover (3) is provided with an outer locking groove (301), and the cover (3) is provided with an inner locking groove (302) located inside the outer locking groove (301). The cover (3) is engaged with the outer locking part (106) through the outer locking groove (301), and the cover (3) is engaged with the inner locking part (204) through the inner locking groove (302).

4. The disposable thermal lunch box with independent hot water storage interlayer according to claim 1, characterized in that: A first sealing gasket (102) is fixedly connected to the outer support platform (101), and the inner support platform (201) is located above the first sealing gasket (102).

5. The disposable thermal lunch box with independent hot water storage interlayer according to claim 1, characterized in that: A reinforcing rib (104) is fixedly connected to the side of the drain pipe (103). A flange (105) is fixedly connected to one end of the drain pipe (103). A sealing plate (402) is fixedly connected to one end of the connector (4). A second sealing gasket (403) is fixedly connected to one side of the sealing plate (402). A handle (404) is fixedly connected to the other side of the sealing plate (402). The sealing plate (402) is in contact with the flange (105) through the second sealing gasket (403).

6. The disposable thermal lunch box with independent hot water storage interlayer according to claim 1, characterized in that: The connector (4) is provided with a connecting screw hole (203), and a threaded post (401) is fixedly connected to the connector (4), and the threaded post (401) is threadedly connected to the connecting screw hole (203).

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