Heat preservation lunch box with cover plate structure

Abstract

The utility model discloses a heat preservation lunch box with a cover plate structure. According to the technical scheme, the heat preservation lunch box is characterized by comprising a packaging box and a plurality of lunch boxes located in the packaging box; the meal boxes are stacked in the packaging box; the packaging box comprises a bearing shell and a closed shell. The bearing shell and the closed shell are fixedly arranged in a clamping manner; the bearing shell comprises a side shell with a U-shaped section; the top shell is integrally arranged at the upper end and the lower end of the side shell; the lunch boxes are waist-shaped and are positioned in the top shell in a stacking manner; the closed shell comprises an arc-shaped plate and semicircular plates at the upper end and the lower end; the semicircular plate is opposite to the top shell; and the edge of the arc-shaped plate is opposite to the side shell. The heat-preservation box has the beneficial effects of being firm, durable, safe and capable of preserving heat.

Description

Technical Field

[0001] The present application relates to a lunch box, and more specifically to a heat-insulating lunch box with a cover structure. Background Art

[0002] As people's living standards improve, the requirements for food preservation and heat preservation are getting higher and higher. As people's pace of life accelerates, take-out and fast food have gradually become an important part of daily diet. In this context, the quality and safety of lunch boxes as food packaging containers are of vital importance. However, there are some problems with the lunch boxes on the market, such as easy breakage, poor sealing, and not resistant to high temperatures. These problems not only affect the quality and taste of food, but also may pose a potential threat to consumers' health. Therefore, the development of a strong, durable, safe, and heat-insulating lunch box has become an urgent need. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present application provides a thermal insulation lunch box with a cover structure, which has the beneficial effects of being firm, durable, safe and heat-insulating.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an insulated lunch box with a cover structure, characterized in that: it includes a packaging box and a plurality of lunch boxes located in the packaging box; the lunch boxes are stacked in the packaging box; the packaging box includes a load-bearing shell and a closed shell; the load-bearing shell and the closed shell are fixedly connected; the load-bearing shell includes a side shell with a U-shaped cross-section; the side shell is integrally provided with a top shell at the upper and lower ends; the lunch box is arranged in a waist shape and is stacked between the top shells; the closed shell includes an arc-shaped plate and semicircular plates at the upper and lower ends; the semicircular plate is opposite to the top shell; the edge of the arc-shaped plate is opposite to the side shell.

[0005] Through the above-mentioned structural arrangement, the opening of the packaging box is arranged on the side, rather than the traditional upper opening. Such an arrangement can conveniently take out the lunch box in the packaging box, or store the lunch box, and the waist-shaped lunch box can be adapted to the load-bearing shell and the inside of the closed shell after being snap-connected and closed, to prevent the lunch box from shaking, and the lunch box is firm, durable and safe to use.

[0006] The present application is further configured as follows: the lunch box includes a base box and a cover sheet arranged on the base box.

[0007] The present application is further configured as follows: a strip plate is extended outward from the inner side of the edge of the arc plate; a chamfered surface is provided on the edge of the strip plate opposite to the side shell, and when the bearing shell is snap-fitted with the closed shell, the strip plate is located inside the side shell.

[0008] Through the above-mentioned structural setting and the setting of the strip plate, the cooperation between the closed shell and the load-bearing shell is achieved, the firmness of the connection is improved, and shaking is prevented. The setting of the chamfered surface facilitates insertion. The setting of the lunch box and the packaging box and the two-layer packaging can effectively play a role in heat preservation.

[0009] The present application is further configured as follows: an extension plate is provided extending outward from the middle of the edge of the arc-shaped plate; the extension plate is elastic; a protrusion is provided on the side of the end of the extension plate facing away from the lunch box; the protrusion is configured as a circle, and strip-shaped protrusions are provided on the surface to increase friction.

[0010] The present application is further configured as follows: a circular notch adapted to the protrusion block is provided on the side shell, and when the bearing shell and the closed shell are snap-fitted, the strip plate and the extension plate are located inside the side shell, and the strip protrusion is snap-fitted with the circular notch inside the bearing shell.

[0011] Through the above structural setting, the raised block cooperates with the circular notch so that the bearing shell and the closed shell are snapped together. When they need to be separated, the raised block is pressed, pulled or pushed to disengage the raised block from the circular notch, thereby achieving separation of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of this embodiment;

[0013] Figure 2 is a schematic diagram of the structure of this embodiment (the closed housing is not shown);

[0014] Figure 3 It is a schematic diagram of the structure of this embodiment (the bearing housing is not shown).

[0015] Figure numerals: 1. packaging box; 2. lunch box; 3. side shell; 4. top shell; 5. arc plate; 6. semicircular plate; 7. bottom box; 8. cover plate; 9. strip plate; 10. chamfered surface; 11. extension plate; 12. raised block; 13. strip raised; 14. circular notch. DETAILED DESCRIPTION

[0016] The present application is further described in detail below in conjunction with the accompanying drawings.

[0017] This embodiment provides a heat-insulating lunch box 2 with a cover sheet 8 structure. Figures 1 to 3As shown, it has the beneficial effects of being firm, durable, safe and heat-insulating. It comprises a packaging box 1 and a plurality of lunch boxes 2 located in the packaging box 1; the lunch boxes 2 are stacked in the packaging box 1; the packaging box 1 comprises a bearing shell and a closed shell; the bearing shell and the closed shell are fixedly connected; the bearing shell comprises a side shell 3 with a U-shaped cross section; the side shell 3 is integrally provided with a top shell 4 at both ends; the lunch boxes 2 are set in a waist shape and are stacked between the top shells 4; the closed shell comprises an arc plate 5 and semicircular plates 6 at both ends; the semicircular plate 6 is opposite to the top shell 4; the edge of the arc plate 5 is opposite to the side shell 3.

[0018] Through the above-mentioned structural arrangement, the opening of the packaging box 1 is arranged on the side, rather than the traditional upper opening. Such an arrangement can conveniently take out the lunch box 2 in the packaging box 1, or store the lunch box 2, and the waist-shaped lunch box 2 can be adapted to the load-bearing shell and the inside of the closed shell after being snap-connected and closed, so as to prevent the lunch box 2 from shaking, and the lunch box 2 is firm, durable and safe to use.

[0019] The lunch box 2 comprises a bottom box 7 and a cover sheet 8 arranged on the bottom box 7. The structure of the lunch box 2 is an existing structure.

[0020] A strip plate 9 is provided on the inner side of the edge of the arc plate 5 and extends outward. A chamfered surface 10 is provided on the edge of the strip plate 9 opposite to the side shell 3. When the bearing shell is engaged with the closed shell, the strip plate 9 is located in the side shell 3.

[0021] Through the above-mentioned structural setting, the setting of the strip plate 9 can achieve the cooperation between the closed shell and the load-bearing shell, improve the firmness of the connection, prevent shaking, and the setting of the chamfered surface 10 is convenient for insertion. The setting of the lunch box 2 and the packaging box 1, the two-layer packaging, can effectively play a role in heat preservation.

[0022] An extension plate 11 is provided outwardly from the middle of the edge of the arc plate 5; the extension plate 11 is elastic; a protrusion 12 is provided on the end of the extension plate 11 away from the lunch box 2; the protrusion 12 is set to be circular, and a strip protrusion 13 is provided on the surface to improve friction.

[0023] The side shell 3 is provided with a circular notch 14 adapted to the protruding block 12. When the bearing shell is engaged with the closed shell, the strip plate 9 and the extension plate 11 are located in the side shell 3, and the strip protrusion 13 is engaged with the circular notch 14 in the bearing shell.

[0024] Through the above-mentioned structural setting, the protruding block 12 cooperates with the circular notch 14, so that the bearing shell and the closed shell are snapped together. When they need to be separated, the protruding block 12 is pressed, pulled or pushed to disengage the protruding block 12 from the circular notch 14, thereby achieving separation of the two.

[0025] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A heat-insulating lunch box with a cover structure, characterized in that: The invention comprises a packaging box (1) and a plurality of lunch boxes (2) located in the packaging box (1); the lunch boxes (2) are stacked in the packaging box (1); the packaging box (1) comprises a bearing shell and a closed shell; the bearing shell and the closed shell are fixedly arranged by clamping; the bearing shell comprises a side shell (3) with a U-shaped cross section; the side shell (3) is integrally provided with a top shell (4) at the upper and lower ends; the lunch boxes (2) are waist-shaped and are stacked between the top shells (4); the closed shell comprises an arc-shaped plate (5) and semicircular plates (6) at the upper and lower ends; the semicircular plate (6) is opposite to the top shell (4); the edge of the arc-shaped plate (5) is opposite to the side shell (3).

2. The heat-insulating lunch box with a cover structure according to claim 1, characterized in that: The lunch box (2) comprises a base box (7) and a cover sheet (8) arranged on the base box (7).

3. The heat-insulating lunch box with a cover structure according to claim 2, characterized in that: A strip plate (9) is provided on the inner side of the edge of the arc-shaped plate (5) extending outward; the edge of the strip plate (9) opposite to the side shell (3) is provided with a chamfered surface (10); when the bearing shell is snap-fitted with the closed shell, the strip plate (9) is located inside the side shell (3).

4. The heat-insulating lunch box with a cover structure according to claim 3, characterized in that: An extension plate (11) is provided at the middle of the edge of the arc-shaped plate (5) extending outward; the extension plate (11) is elastic; a protrusion (12) is provided at the end of the extension plate (11) facing away from the lunch box (2); the protrusion (12) is circular, and a strip-shaped protrusion (13) is provided on the surface to increase friction.

5. The heat-insulating lunch box with a cover structure according to claim 4, characterized in that: The side shell (3) is provided with a circular notch (14) adapted to the protruding block (12); when the bearing shell is engaged with the closed shell, the strip plate (9) and the extension plate (11) are located inside the side shell (3), and the strip protrusion (13) is engaged with the circular notch (14) inside the bearing shell.

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