Lunch box mold frame structure capable of preventing air leakage

Abstract

The utility model discloses a meal box mould frame structure capable of preventing air leakage, which belongs to the technical field of meal boxes, and comprises a meal box main body and a meal box cover, the top of the meal box main body is provided with a sealing groove, the bottom of the meal box cover is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a fixing plate, and the bottom of the fixing plate is connected with a sealing strip; according to the lunch box, the sealing strip, the sealing groove and the first elastic piece are arranged, the lunch box cover moves downwards to drive the first elastic piece, the fixing plate and the sealing strip to move downwards, so that the sealing strip enters the sealing groove, the lunch box cover continues to move downwards, and the sealing strip is extruded by the sealing groove to push the fixing plate upwards; the first elastic piece is bent to generate elastic force, downward force can be applied to the sealing strip, the sealing strip can be tightly attached to the inner wall of the sealing groove and the top of the lunch box body, the sealing performance of the lunch box is improved, and air leakage of the lunch box and spilling of liquid food in the lunch box are prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of lunch boxes, and particularly relates to a lunch box mold frame structure for preventing air leakage. Background Art

[0002] The modern food industry has formed many convenient products and services, and lunch boxes have also become a more diverse product. A lunch box is a special box for packing meals, also known as a bento box, mostly made of aluminum, stainless steel or plastic, and the most commonly used is the plastic lunch box.

[0003] For the existing plastic takeout lunch box, the lunch box cover and the lunch box are connected through specific grooves. By pressing the lunch box cover, the lunch box cover is buckled on the lunch box. However, such a connection method is not firm enough and is prone to looseness, resulting in the separation of the lunch box cover from the lunch box, thereby spilling the food in the lunch box. Secondly, the airtightness of the existing plastic takeout lunch box is not good, and it is easy to leak air. Moreover, when packing food with soup, the soup is easy to spill out of the lunch box, affecting normal dining. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lunch box mold frame structure for preventing air leakage in order to solve the problems of poor airtightness of the existing plastic takeout lunch box and the insecure connection between the lunch box cover and the lunch box.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A lunch box mold frame structure for preventing air leakage, including a lunch box body and a lunch box cover. A sealing groove is opened at the top of the lunch box body, a sliding groove is opened at the bottom of the lunch box cover, a fixing plate is slidably connected to the inner wall of the sliding groove, a sealing strip is connected to the bottom of the fixing plate, and the outer wall of the sealing strip is respectively attached to the inner wall of the sliding groove and the inner wall of the sealing groove. The outer wall of the sealing strip is attached to the top of the lunch box body. A plurality of first elastic pieces are connected to the top of the fixing plate, and the top of the first elastic pieces is connected to the inner wall of the sliding groove.

[0007] As a further description of the above technical solution:

[0008] The cross-section of the sealing strip is T-shaped, a sliding groove is opened at the top of the lunch box body, and placing grooves are opened on both sides of the inner wall of the sliding groove.

[0009] As a further description of the above technical solution:

[0010] And clamping grooves are opened on one side of the two placing grooves, and one side of the inner wall of the clamping groove is a slope.

[0011] As a further description of the above technical solution:

[0012] A connecting plate is connected to the bottom of the lunch box lid. The outer wall of the connecting plate is slidably connected to the inner wall of the sliding groove. Second elastic pieces are connected to both sides of the outer wall of the connecting plate. The cross-section of the second elastic piece is V-shaped, and one side of the second elastic piece is attached to one side of the inner wall of the clamping groove.

[0013] As a further description of the above technical solution:

[0014] A plurality of anti-slip strips are connected to the outer wall of the lunch box body, and the lengths of the anti-slip strips on both sides are longer than those on the other two sides.

[0015] As a further description of the above technical solution:

[0016] A through groove is formed in the outer wall of the lunch box body, and a heat insulation groove is formed on one side of the through groove.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0018] 1. In the present utility model, by providing a sealing strip, a sealing groove and a first elastic piece, when the lunch box lid moves downward, the first elastic piece, the fixing plate and the sealing strip are driven to move downward, so that the sealing strip enters the sealing groove. When the lunch box lid continues to move downward, the sealing strip is squeezed by the sealing groove and pushes the fixing plate upward, so that the first elastic piece bends and generates elastic force, and then can give a downward force to the sealing strip, so that the sealing strip can tightly fit with the inner wall of the sealing groove and the top of the lunch box body, thereby improving the sealing performance of the lunch box and preventing the lunch box from leaking air and the liquid food in the lunch box from spilling out.

[0019] 2. In the present utility model, by providing a second elastic piece and a clamping groove, when the lunch box lid moves downward, the connecting plate and the second elastic piece are driven to move into the sliding groove and the placing groove respectively. When the second elastic piece enters the placing groove, it is first squeezed by one side of the placing groove and bends to generate elastic force, and then the elastic force is released so that one side of the second elastic piece fits with one side of the clamping groove, thereby being clamped with one side of the clamping groove, and further restricting the position of the lunch box lid, making the connection between the lunch box lid and the lunch box more firm, and avoiding the food in the lunch box from spilling out due to the loosening of the lunch box lid. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural diagram of the present utility model;

[0021] Figure 2 is a sectional structural diagram of the lunch box body of the present utility model;

[0022] Figure 3 For the present utility model Figure 2 is a partially enlarged structural diagram of part A.

[0023] Legend: 1. Lunch box body; 2. Lunch box lid; 3. Anti-slip strip; 4. Through groove; 5. Heat insulation groove; 6. First elastic piece; 7. Slide groove; 8. Fixed plate; 9. Sealing strip; 10. Placing groove; 11. Clamping groove; 12. Second elastic piece; 13. Connecting plate; 14. Sealing groove; 15. Sliding groove. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Please refer to Figures 1-3 , the present invention provides a technical solution: a lunch box mold frame structure for preventing air leakage, including a lunch box body 1 and a lunch box lid 2. A sealing groove 14 is opened at the top of the lunch box body 1, and a slide groove 7 is opened at the bottom of the lunch box lid 2. A fixed plate 8 is slidably connected to the inner wall of the slide groove 7. A sealing strip 9 is connected to the bottom of the fixed plate 8, and the outer wall of the sealing strip 9 is respectively in contact with the inner wall of the slide groove 7 and the inner wall of the sealing groove 14. The outer wall of the sealing strip 9 is in contact with the top of the lunch box body 1. A plurality of first elastic pieces 6 are connected to the top of the fixed plate 8, and the top of the first elastic piece 6 is connected to the inner wall of the slide groove 7. The cross-section of the sealing strip 9 is T-shaped. A sliding groove 15 is opened at the top of the lunch box body 1, and placing grooves 10 are opened on both sides of the inner wall of the sliding groove 15.

[0026] The specific implementation mode is as follows: By setting the sealing strip 9, the sealing groove 14 and the first elastic piece 6, when the lunch box lid 2 moves downward, the first elastic piece 6 is driven to move, and the first elastic piece 6 drives the fixed plate 8 to move. By setting the fixed plate 8, the elastic force of the first elastic piece 6 can be evenly applied to the sealing strip 9, thereby improving the fitting effect of the sealing strip 9. The fixed plate 8 moves to drive the sealing strip 9 to move, so that the sealing strip 9 enters the sealing groove 14. When the lunch box lid 2 continues to move downward, the sealing strip 9 is squeezed by the sealing groove 14 and pushes the fixed plate 8 upward, so that the first elastic piece 6 bends to generate an elastic force, and then can give a downward force to the sealing strip 9, so that the sealing strip 9 can tightly fit with the inner wall of the sealing groove 14 and the top of the lunch box body 1, thereby improving the sealing performance of the lunch box and preventing air leakage from the lunch box and liquid food in the lunch box from spilling out.

[0027] Moreover, clamping grooves 11 are formed on one side of each of the two placing grooves 10. One side of the inner wall of the clamping groove 11 is a slope. A connecting plate 13 is connected to the bottom of the lunch box lid 2. The outer wall of the connecting plate 13 is slidably connected to the inner wall of the sliding groove 15. Two sides of the outer wall of the connecting plate 13 are each connected to a second elastic piece 12. The cross-section of the second elastic piece 12 is V-shaped. One side of the second elastic piece 12 is in contact with one side of the inner wall of the clamping groove 11. A plurality of anti-slip strips 3 are connected to the outer wall of the lunch box body 1. The lengths of the anti-slip strips 3 on two of the sides are longer than those on the other two sides. A through groove 4 is formed in the outer wall of the lunch box body 1. A heat insulation groove 5 is formed on one side of the through groove 4.

[0028] The specific implementation method is as follows: By providing the second elastic piece 12 and the clamping groove 11, when the lunch box lid 2 moves downward, it drives the connecting plate 13 to move into the sliding groove 15. The movement of the connecting plate 13 drives the second elastic piece 12 to move into the placing groove 10. By setting the second elastic piece 12 in a V shape, when the second elastic piece 12 enters the placing groove 10, it is first squeezed and bent by one side of the placing groove 10, and at the same time, elastic force is generated. When it moves to a position level with the clamping groove 11, the second elastic piece 12 releases the elastic force, so that one side of the second elastic piece 12 is in contact with the side of the clamping groove 11 provided with a slope, thereby being clamped to one side of the clamping groove 11, and further restricting the position of the lunch box lid 2, making the connection between the lunch box lid 2 and the lunch box more firm, avoiding the loosening of the lunch box lid 2 and the spilling of the food in the lunch box. When it is necessary to open the lid, push one side of the second elastic piece 12, so that one side of the second elastic piece 12 is separated from one side of the clamping groove 11, and the fixing of the lunch box lid 2 is released, so that the lunch box lid 2 can be opened. By providing the through groove 4 and the heat insulation groove 5, the heat in the lunch box is separated, preventing scalding when taking the lunch box. By providing the anti-slip strips 3, it is more convenient to take the lunch box.

[0029] Working principle: When in use, the downward movement of the lunch box cover 2 drives the movement of the first elastic piece 6. The first elastic piece 6 drives the movement of the sealing strip 9 through the fixing plate 8, so that the sealing strip 9 enters the sealing groove 14. The lunch box cover 2 continues to move downward, causing the sealing strip 9 to be squeezed by the sealing groove 14 and push the fixing plate 8 upward, causing the first elastic piece 6 to bend and generate elastic force, so as to give the sealing strip 9 a downward force, enabling the sealing strip 9 to tightly fit against the inner wall of the sealing groove 14 and the top of the lunch box body 1, thereby improving the sealing effect. At this time, the lunch box cover 2 will also drive the second elastic piece 12 to move into the placement groove 10 through the connecting plate 13. When the second elastic piece 12 enters the placement groove 10, it will first be bent by the extrusion on one side of the placement groove 10 and generate elastic force at the same time. When it moves to a position level with the clamping groove 11, the second elastic piece 12 releases the elastic force so that one side of the second elastic piece 12 fits against the side with an inclined surface of the clamping groove 11, thereby being clamped with one side of the clamping groove 11, and further making the connection between the lunch box cover 2 and the lunch box more firm. When it is necessary to open the cover, push one side of the second elastic piece 12 to separate one side of the second elastic piece 12 from one side of the clamping groove 11 and release the fixation of the lunch box cover 2, so that the lunch box cover 2 can be opened.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A meal box mold frame structure for preventing air leakage, comprising a meal box main body (1) and a meal box lid (2), characterized in that: A sealing groove (14) is formed at the top of the lunch box body (1). A sliding groove (7) is formed at the bottom of the lunch box cover (2). A fixing plate (8) is slidably connected to the inner wall of the sliding groove (7). A sealing strip (9) is connected to the bottom of the fixing plate (8). The outer wall of the sealing strip (9) is respectively in contact with the inner wall of the sliding groove (7) and the inner wall of the sealing groove (14). The outer wall of the sealing strip (9) is in contact with the top of the lunch box body (1). A plurality of first elastic pieces (6) are connected to the top of the fixing plate (8). The top of the first elastic pieces (6) is connected to the inner wall of the sliding groove (7).

2. The air leakage prevention lunch box mold frame structure according to claim 1, characterized in that: The cross-section of the sealing strip (9) is T-shaped. A sliding groove (15) is formed at the top of the lunch box body (1). Placing grooves (10) are formed on both sides of the inner wall of the sliding groove (15).

3. A meal box mold frame structure for preventing air leakage according to claim 2, characterized in that: Clamping grooves (11) are formed on one side of the two placing grooves (10). One side of the inner wall of the clamping groove (11) is an inclined surface.

4. A leak-proof lunch box mold frame structure according to claim 1, characterized in that: A connecting plate (13) is connected to the bottom of the lunch box cover (2). The outer wall of the connecting plate (13) is slidably connected to the inner wall of the sliding groove (15). Second elastic pieces (12) are connected to both sides of the outer wall of the connecting plate (13). The cross-section of the second elastic pieces (12) is V-shaped. One side of the second elastic pieces (12) is in contact with one side of the inner wall of the clamping groove (11).

5. A leak-proof lunch box mold frame structure according to claim 1, characterized in that: A plurality of anti-slip strips (3) are connected to the outer wall of the lunch box body (1). The lengths of the anti-slip strips (3) on two of the sides are longer than those on the other two sides.

6. A leak-proof lunch box mold frame structure according to claim 1, characterized in that: A through groove (4) is formed on the outer wall of the lunch box body (1). A heat insulation groove (5) is formed on one side of the through groove (4).

Images