Heat-preservation and fresh-keeping lunch box

Abstract

The utility model discloses a heat preservation fresh-keeping lunch box, which comprises a lunch box body, a box cover and an inner container box, the inner container box is clamped in the lunch box body, the lunch box also comprises a box receiving mechanism, the box receiving mechanism comprises a convex frame, the inner container box, a surrounding frame, a rubber receiving frame, a pressing frame, a magnetic plate, a hole receiving table, a hole pressing table and a stud, the convex frame is convexly arranged on the surface of the box body of the lunch box body, and the magnetic plate is arranged on the convex frame. A box receiving mechanism is arranged at the position of a box body and a box cover of the lunch box body, a pressing frame and a hole pressing table of the box receiving mechanism can be fixed at the position of the box cover, and then the lunch box body and the box cover can be oppositely pressed through opposite concave connecting structures. The pressing frame below the box cover can press the rubber connecting frame to be squeezed into the bottom connecting groove of the lunch box body for press-fitting and sealing, and the pressing hole table of the box cover and the pressing hole table of the box cover are also locked by virtue of a stud, so that the sealing performance and the heat preservation and fresh keeping performance after the lunch box body and the box cover are butted are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lunch boxes, in particular to a heat-insulating and fresh-keeping lunch box. Background Art

[0002] Fresh-keeping lunch boxes are containers specifically designed for storing and carrying food. Their primary function is to maintain food freshness and hygiene. These boxes are typically airtight, effectively isolating the air and slowing the oxidation and spoilage of food, thereby extending its shelf life. With societal demands and technological advancements, refrigerated and heated fresh-keeping lunch boxes have emerged to meet the need for food insulation and freshness. These utilize semiconductor Peltier technology to cool or heat the lunch boxes.

[0003] When using the existing refrigerated and fresh-keeping electric lunch box, it is necessary to put the inner box inside the lunch box and then snap the lid and box body together to seal it. However, the lid and box body of this lunch box are usually a snap-on structure, and the sealing of the lunch box after the lid is closed is limited, resulting in poor heat preservation effect of the lunch box. Therefore, the present invention proposes a heat-insulating and fresh-keeping lunch box. Utility Model Content

[0004] The main purpose of the utility model is to provide a lunch box that keeps food warm and fresh. A box connection mechanism is provided at the box body and the lid of the lunch box. The pressing frame and the pressing hole platform of the box connection mechanism can be fixed at the lid. Then, the lunch box body and the lid can be pressed against each other by means of opposing concave connection structures. The pressing frame under the lid can press the rubber connection frame and squeeze into the bottom connection groove of the lunch box body for press-fitting and sealing. The pressing hole platform of the lid and the pressing hole platform of the lid are also locked by means of studs, thereby ensuring the sealing and heat preservation and freshness preservation of the lunch box body and the lid after they are connected. This can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The lid is secured to the inner cover of the box and is adapted to engage the inner cover of the box body, wherein the lid is secured to the inner cover of the box and is adapted to engage the inner cover of the box body.

[0007] Furthermore, threaded holes are formed through the bodies of the hole-pressing platform and the hole-connecting platform, and studs are screwed between the threaded holes of the hole-pressing platform and the hole-connecting platform;

[0008] By adopting the above technical solution, the hole pressing platform and the hole connecting platform can be connected by screwing the studs through the threaded holes.

[0009] Furthermore, the size of the frame cavity between the convex frame and the surrounding frame is the same as the size of the frame body of the rubber joint frame;

[0010] By adopting the above technical solution, the convex frame and the surrounding frame can be adapted to fit into the rubber joint frame.

[0011] Furthermore, the outer frame wall of the convex frame is symmetrically provided with a platform groove, and a magnetic plate is stuck and bonded in the groove cavity of the platform groove;

[0012] By adopting the above technical solution, the convex frame is fixed by being clamped into the adhesive magnetic plate through the table groove.

[0013] Furthermore, the handle plate of the rotating handle is welded to one end of the stud, and a vertical plate is protruded upward on the surface of the handle plate of the rotating handle;

[0014] By adopting the above technical solution, after the handle plate of the rotary handle is welded at the stud, a vertical plate is provided on the surface of the rotary handle which can be pinched by a person, thereby operating the rotary handle to rotate the stud.

[0015] Furthermore, the thickness of the frame plate of the pressing frame is the same as the width of the groove cavity of the concave connection groove, and the groove cavity width of the concave connection groove is smaller than the groove cavity width of the bottom connection groove;

[0016] By adopting the above technical solution, the pressing frame can be pressed into the concave connecting groove, and then the pressing frame can press the rubber connecting frame into the bottom connecting groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model provides a connecting mechanism at the box body and the lid of the lunch box. The pressing frame and the pressing hole platform of the connecting mechanism can be fixed at the lid. Then, the lunch box body and the lid can be pressed against each other by means of the opposite concave connection structures. The pressing frame under the lid can press the rubber connecting frame and squeeze into the bottom connection groove of the lunch box body to perform press-fit sealing. The pressing hole platform of the lid and the pressing hole platform of the lid are also locked by means of studs, thereby ensuring the sealing and heat preservation and freshness preservation of the lunch box body and the lid after they are connected.

[0019] In addition, a magnetic plate is provided on the frame wall of the convex frame of the lunch box body, which can magnetically attract the pressing frame under the box cover, so that the pressing frame can firmly contact the convex frame, ensuring that the box cover can be stably pressed against the lunch box body for sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a heat-insulating and fresh-keeping lunch box.

[0021] Figure 2 The utility model is a schematic diagram of the lid and the lunch box body of the heat-insulating and fresh-keeping lunch box.

[0022] Figure 3 This is an exploded view of the box connection mechanism of a heat-insulating and fresh-keeping lunch box of the present invention.

[0023] In the figure: 1. lunch box body; 2. box cover; 3. box connecting mechanism; 4. convex frame; 5. liner box; 6. surrounding frame; 7. rubber connecting frame; 8. concave connecting groove; 9. bottom connecting groove; 10. pressing frame; 11. platform groove; 12. magnetic plate; 13. connecting hole platform; 14. pressing hole platform; 15. stud; 16. rotary handle. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-3 As shown, a heat-insulating and fresh-keeping lunch box includes a lunch box body 1, a box cover 2 and an inner liner box 5. The inner liner box 5 is inserted into the lunch box body 1, and the box connection mechanism 3 includes a convex frame 4, an inner liner box 5, a surrounding frame 6, a rubber connecting frame 7, a pressing frame 10, a magnetic plate 12, a connecting hole platform 13, a pressing hole platform 14 and a stud 15. The surface of the lunch box body 1 is raised with a convex frame 4, and the side of the lunch box body 1 outside the convex frame 4 is fixed with a surrounding frame 6. The surface of the lunch box body 1 between the surrounding frame 6 and the convex frame 4 is clamped with a rubber connecting frame. Frame 7, and the surface of the rubber connecting frame 7 is recessed to form a recessed groove 8, the surface of the lunch box body 1 below the recessed groove 8 is recessed to form a bottom connecting groove 9, a pressing frame 10 is clamped in the recessed groove 8, and the pressing frame 10 is fixed to the lower cover body of the box cover 2, and the surface of the lunch box body 1 below the surrounding frame 6 is symmetrically fixed with a connecting hole platform 13, and the cover body of the box cover 2 is symmetrically fixed with a pressing hole platform 14, and a stud 15 fixed below the handle 16 is screwed between the pressing hole platform 14 and the connecting hole platform 13, and a magnetic plate 12 is installed at the outer frame wall of the convex frame 4.

[0026] The body of the punching platform 14 and the connecting platform 13 is provided with threaded holes, and a stud 15 is screwed between the threaded holes of the punching platform 14 and the connecting platform 13;

[0027] By adopting the above technical solution, the hole pressing platform 14 and the hole connecting platform 13 can be connected by screwing the stud 15 through the threaded hole.

[0028] The size of the frame cavity between the convex frame 4 and the surrounding frame 6 is the same as the frame size of the rubber joint frame 7;

[0029] By adopting the above technical solution, the rubber joint frame 7 can be adapted and inserted between the convex frame 4 and the surrounding frame 6 .

[0030] The outer wall of the convex frame 4 is symmetrically provided with a platform groove 11, and a magnetic plate 12 is stuck and bonded in the groove cavity of the platform groove 11;

[0031] By adopting the above technical solution, the convex frame 4 is fixed by being clamped into the adhesive magnetic plate 12 through the platform groove 11.

[0032] The handle of the rotary handle 16 is welded to one end of the stud 15, and a vertical plate is raised upward on the surface of the handle of the rotary handle 16;

[0033] By adopting the above technical solution, after the handle plate of the rotary handle 16 is welded at the stud 15 , a vertical plate is provided on the surface of the rotary handle 16 which can be pinched by a person, thereby operating the rotary handle 16 to rotate the stud 15 .

[0034] The thickness of the frame plate of the pressing frame 10 is the same as the width of the groove cavity of the concave groove 8, and the width of the groove cavity of the concave groove 8 is smaller than the width of the groove cavity of the bottom groove 9;

[0035] By adopting the above technical solution, the pressing frame 10 can be pressed into the concave connection groove 8 , and then the pressing frame 10 can press the rubber connection frame 7 into the bottom connection groove 9 .

[0036] It should be noted that the present invention is a heat-insulating and fresh-keeping lunch box, in which a connecting box mechanism 3 is provided at the box body and the lid 2 of the lunch box body 1, a pressing frame 10 and a pressing hole platform 14 of the connecting box mechanism 3 can be fixed at the lid 2, and an inner liner box 5 can be placed in the lunch box body 1 between the convex frames 4 after being filled with food, and then the convex frame 4, the surrounding frame 6 and the connecting hole platform 13 of the connecting box mechanism 3 can be provided at the lunch box body 1, when the inner liner box 5 of the lunch box body 1 is inserted into the lunch box body 1 between the surrounding frames 6, and the rubber connecting frame 7 can be inserted between the convex frame 4 and the surrounding frame 6, and then the lid 2 can be covered over the lunch box body 1, at this time, the pressing frame 10 below the lid 2 is pressed into the concave connecting groove 8 of the rubber connecting frame 7, and then the food is put into the lunch box body 1. Use the stud 15 below the rotary handle 16 to rotate from the pressure hole platform 14 to the connection hole platform 13. As the stud 15 is spun, the lid 2 where the pressure hole platform 14 is located is pressed into the lunch box body 1 where the connection hole platform 13 is located, and then the pressing frame 10 presses the rubber connection frame 7 into the bottom connection groove 9 of the lunch box body 1, and the frame wall of the convex frame 4 is magnetically attracted by the magnetic plate 12 to press the frame 10, to ensure that the lid 2 can be stably pressed against the lunch box body 1 for sealing. After the bolt 15 is unscrewed upward from the connection hole platform 13, the lid 2 can be removed from the top of the lunch box body 1, and then the lunch box body 1 can be opened to take out the liner box 5 for use. The lunch box body 1 and the lid 2 of the utility model are the existing refrigeration and fresh-keeping electric lunch boxes on the market.

[0037] It should be noted that the present invention is a heat-insulating and fresh-keeping lunch box. The components in the present invention are all components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A heat-insulating and fresh-keeping lunch box, comprising a lunch box body (1), a lid (2) and an inner liner box (5), wherein the inner liner box (5) is inserted into the lunch box body (1), and characterized in that: The lunch box body (1) further comprises a box connecting mechanism (3), wherein the box connecting mechanism (3) comprises a convex frame (4), an inner liner box (5), a surrounding frame (6), a rubber connecting frame (7), a pressing frame (10), a magnetic plate (12), a connecting hole platform (13), a pressing hole platform (14) and a stud (15); a convex frame (4) is raised on the box body surface of the lunch box body (1), and a surrounding frame (6) is fixed to the side of the lunch box body (1) outside the convex frame (4); a rubber connecting frame (7) is clamped on the surface of the lunch box body (1) between the surrounding frame (6) and the convex frame (4), and a concave connecting groove (8) is formed on the surface of the rubber connecting frame (7). ), the surface of the lunch box body (1) below the recessed groove (8) is recessed to form a bottom connecting groove (9), a pressing frame (10) is clamped in the recessed groove (8), and the pressing frame (10) is fixed to the lower cover of the box cover (2), a connecting hole platform (13) is symmetrically fixed on the surface of the lunch box body (1) below the surrounding frame (6), a pressing hole platform (14) is symmetrically fixed on the cover body of the box cover (2), and a stud (15) fixed below the rotary handle (16) is screwed between the pressing hole platform (14) and the connecting hole platform (13), and a magnetic plate (12) is installed on the outer frame wall of the convex frame (4).

2. The heat-insulating and fresh-keeping lunch box according to claim 1, characterized in that: The body of the hole-pressing platform (14) and the hole-connecting platform (13) is provided with threaded holes, and a stud (15) is screwed between the threaded holes of the hole-pressing platform (14) and the hole-connecting platform (13).

3. The heat-insulating and fresh-keeping lunch box according to claim 1, characterized in that: The size of the frame cavity between the convex frame (4) and the surrounding frame (6) is the same as the frame size of the rubber joint frame (7).

4. The heat-insulating and fresh-keeping lunch box according to claim 3, characterized in that: The outer frame wall of the convex frame (4) is symmetrically provided with a platform groove (11), and a magnetic plate (12) is stuck and bonded in the groove cavity of the platform groove (11).

5. The heat-insulating and fresh-keeping lunch box according to claim 1, characterized in that: The handle plate of the rotating handle (16) is welded to one end of the stud (15), and a vertical plate is protruded upward on the surface of the handle plate of the rotating handle (16).

6. The heat-insulating and fresh-keeping lunch box according to claim 1, characterized in that: The thickness of the frame plate of the pressing frame (10) is the same as the width of the groove cavity of the concave groove (8), and the width of the groove cavity of the concave groove (8) is smaller than the width of the groove cavity of the bottom groove (9).

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