Plastic meal box capable of being opened by one hand

Abstract

The utility model relates to the technical field of lunch boxes, and discloses a plastic lunch box capable of being opened by one hand, which comprises a lunch box body, the lunch box body comprises a box body, a box cover and a button, a bulge is arranged on the outer side of the upper end of the box body, the box cover is positioned above the bulge, one end of the box cover is hinged with one end of the bulge, one side of the top of the box cover is hinged with the button, and the other side of the top of the box cover is hinged with the button. Buckle points are symmetrically arranged on the inner side wall of the end, away from the hinged position of the box cover and the protrusion, of the buckle, a mounting groove matched with the buckle is formed in one end of the protrusion, and a groove is formed in the bottom of the protrusion. Through the design of the single long buckle and the double buckle points, young children can open and close the meal box easily and independently, and the sealing performance of sticky materials is kept; by means of matching of the connecting columns and the inserting holes and special assembly design, the box cover is prevented from falling off, and parts are not prone to falling off when falling off; the biological Ecozen material is adopted, can be industrially composted and degraded, is resistant to high temperature, is suitable for microwave ovens and dishwashers, is transparent in appearance, and overcomes the defects of a traditional PP material.

Description

Technical Field

[0001] This utility model relates to the field of lunch box technology, and in particular to a plastic lunch box that can be opened with one hand. Background Technology

[0002] In daily life, the demand for lunchboxes among children aged 4 and up is increasing. Lunchboxes suitable for this age group need to take into account safety, convenience, and applicability. Currently, most plastic lunchboxes on the market are designed for the general population, with the most common style using a four-buckle structure, which uses multiple buckles to seal the box body and lid. In addition, most existing lunchboxes are designed as separate units, with the lid and body completely separated, and they are generally made of PP (polypropylene). These designs meet the basic needs of ordinary users to a certain extent, but their structure and material characteristics are gradually revealing obvious limitations when used by children aged 4 and up.

[0003] The existing technology has many drawbacks: First, the four-hook design requires a lot of force to open, and children aged 4 and above have weak hand strength and cannot open it independently, requiring adult assistance, which reduces their autonomy in using it; second, the split design makes it easy for the lid to fall off if the child does not place it properly after opening, which may damage the lunchbox; third, the lunchbox made of PP material is non-biodegradable, which can easily cause environmental burden after use and does not conform to the current trend of green and environmentally friendly development. Utility Model Content

[0004] In view of the problems that existing plastic lunch boxes have, such as the difficulty in opening due to the four-button structure, the easy fall off of the lid due to the split design, and the non-degradable PP material, which cannot meet the needs of children aged 4 and above for autonomy and environmental protection, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a plastic lunch box that can be opened with one hand, including a lunch box body, the lunch box body including a box body, a box lid, and a buckle, the upper outer side of the box body is provided with a protrusion, the box lid is located above the protrusion, and one end of the box lid is hinged to one end of the protrusion, one side of the top of the box lid is hinged to the buckle, and the inner side wall of the end of the buckle away from the hinge point between the box lid and the protrusion is symmetrically provided with fastening points, one end of the protrusion is provided with an installation groove adapted to the buckle, and the bottom of the protrusion is provided with a groove.

[0006] As a preferred embodiment, the top side of the box cover is provided with a recessed part one, and the recessed part one is provided with a recessed part two on the side away from the mounting groove. One end of the buckle is located in the recessed part one, and the bottom of the buckle near the recessed part two is provided with connecting posts symmetrically. The inner wall of the recessed part two is provided with symmetrical insertion holes adapted to the connecting posts.

[0007] As a preferred embodiment, the button has an L-shaped structure, and the lower end of the vertical part of the button is curved outward. The fastening point is connected to the vertical part of the button and is triangular in shape.

[0008] As a preferred embodiment, a sealing groove is provided at the bottom of the box cover, and a sealing ring is installed in the sealing groove, with the sealing ring corresponding to the upper end of the box body.

[0009] As a preferred embodiment, a plurality of fixing blocks are fixedly installed at one end of the box cover, and a rotating rod is fixedly installed between adjacent fixing blocks. An arc-shaped sleeve is provided on the top of the rotating rod, and the lower end of the arc-shaped sleeve is fixedly connected to the protruding end.

[0010] As a preferred option, the lunchbox body is made of Ecozen material, and the sealing ring is made of silicone.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects:

[0012] 1. This utility model adopts a single long buckle and double buckle point design, which allows young children to easily and independently complete the opening and closing of the lunch box without adult assistance. It solves the problem of the difficulty in opening the existing four buckle design, and can still maintain the seal for viscous substances.

[0013] 2. This utility model achieves hinged connection between the buckle and the lid by using the connecting post and the insertion hole. Combined with the special buckle assembly design, it avoids the problem of the lid falling off easily after the detachable lunch box is opened. Even if the lunch box falls, the buckle and the connecting post will not easily fall off, and there is no need to reassemble.

[0014] 3. The box body of this utility model is made of bio-based Ecozen material, which can be degraded by industrial composting, overcoming the disadvantages of traditional PP material that cannot be degraded and easily causes environmental burden; at the same time, the material maintains high temperature resistance, is suitable for microwave ovens and dishwashers, and has a more transparent appearance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the box lid of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure between the box body and the protrusion of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure between the button and the fastening point of this utility model;

[0020] Figure 6 For the present utility model Figure 2 Enlarged structural diagram at point A;

[0021] Figure 7 This is a partial cross-sectional structural diagram of the box body and protrusion of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Box body; 2. Box lid; 3. Button; 4. Protrusion; 5. Recessed part one; 6. Recessed part two; 7. Insertion hole; 8. Connecting post; 9. Fastening point; 10. Mounting groove; 11. Groove; 12. Sealing groove; 13. Sealing ring; 14. Fixing block; 15. Rotating rod; 16. Arc sleeve. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 - Figure 7 As shown, a plastic lunchbox that can be opened with one hand is provided, including a lunchbox body, a box body 1, a lid 2, and a buckle 3. The upper outer side of the box body 1 is provided with a protrusion 4. The lid 2 is located above the protrusion 4, and one end of the lid 2 is hinged to one end of the protrusion 4. The top side of the lid 2 is hinged to the buckle 3. The inner side wall of the end of the buckle 3 away from the hinge point of the lid 2 and the protrusion 4 is symmetrically provided with fastening points 9. One end of the protrusion 4 is provided with an installation groove 10 that matches the buckle 3, and the bottom of the protrusion 4 is provided with a groove 11. The single buckle-button structure, combined with the cooperation of the fastening points 9 and the groove 11, allows children aged 4 and above to easily and independently complete the opening and closing of the lunchbox without adult assistance. This solves the problem of the difficulty in opening the existing four-button design, and can still maintain the seal for viscous substances.

[0026] In this example, a recessed part 5 is provided on one side of the top of the lid 2, and a recessed part 6 is provided on the side of the recessed part 5 away from the mounting groove 10. One end of the buckle 3 is located in the recessed part 5, and a connecting post 8 is symmetrically provided at the bottom of the end of the buckle 3 near the recessed part 6. The inner wall of the recessed part 6 is symmetrically provided with insertion holes 7 that are adapted to the connecting post 8. The recessed part provides a stable installation space for the buckle 3. The cooperation between the connecting post 8 and the insertion hole 7 realizes the stable hinge between the buckle 3 and the lid 2, avoiding the problem of the lid 2 easily falling off in the split design. Even if the lunch box falls, the buckle 3 will not easily fall off and there is no need to reassemble.

[0027] In this example, button 3 has an L-shaped structure, and the lower end of the vertical part of button 3 is curved outward. The fastening point 9 is connected to the vertical part of button 3 and has a triangular shape. The L-shaped structure makes it easier for children to apply force with their hands, and the triangular fastening point 9 can reduce the resistance to opening, further improving the ease of operation for children aged 4 and up, and helping them to independently open and close the lunch box.

[0028] In this example, a sealing groove 12 is provided at the bottom of the lid 2, and a sealing ring 13 is installed in the sealing groove 12, and the sealing ring 13 corresponds to the upper end of the box body 1; the cooperation between the sealing groove 12 and the sealing ring 13 enhances the sealing performance of the lunch box, effectively prevents food from leaking out, ensures cleanliness during use, and meets the basic sealing requirements of children's lunch boxes.

[0029] In this example, several fixing blocks 14 are fixedly installed on one end of the lid 2, and a rotating rod 15 is fixedly installed between adjacent fixing blocks 14. An arc-shaped sleeve 16 is provided on the top of the rotating rod 15, and the lower end of the arc-shaped sleeve 16 is fixedly connected to one end of the protrusion 4. The combination of fixing blocks 14, rotating rod 15 and arc-shaped sleeve 16 strengthens the firmness of the hinge between the lid 2 and the box body 1, avoids loosening or damage at the connection during opening and closing, and improves the durability of the lunch box.

[0030] In this example, the entire lunchbox body is made of Ecozen material, and the sealing ring 13 is made of silicone. Ecozen material is 100% bio-based and can be degraded through industrial composting, overcoming the drawbacks of traditional PP material which cannot be degraded and causes environmental burden, making it more environmentally friendly. At the same time, this material maintains high temperature resistance and is suitable for microwave ovens and dishwashers, taking into account practicality. The silicone sealing ring 13 has good elasticity and sealing performance, and is safe and non-toxic, making it suitable for children's use.

[0031] During use, the lid 2 is hinged to the protrusion 4 of the box body 1 via the rotating rod 15 at one end. When fastened, the elastic deformation of the plastic is used to apply force to the buckle 3 under the guidance of a specific angle, so that the buckle point 9 of the buckle 3 is deformed under the pressure of the inner wall of the mounting groove 10 until it passes the part that hinders the movement of the buckle point 9. Then, the buckle point 9 and the groove 11 at the bottom of the protrusion 4 form a mechanical interlock, realizing the sealed fastening of the lid 2 and the box body 1.

[0032] When opening, the special curved shape of the button 3 allows the hand to apply force to the button 3, causing the contact surface of the snap point 9 to separate from the groove 11. The design of the single long buckle - button 3 and two snap points 9 reduces the opening resistance, allowing children aged 4 and up to easily open the box lid 2.

[0033] The buckle 3 is assembled with the insertion hole 7 of the recessed part 6 of the lid 2 via the connecting post 8. It requires a large force to separate. At the same time, the connection between the lid 2 and the pivot of the protrusion 4 is reinforced by the fixing block 14, the rotating rod 15 and the arc sleeve 16 to ensure that the components are not easy to fall off during the opening and closing process.

[0034] A silicone sealing ring 13 is installed in the sealing groove 12 at the bottom of the lid 2. When the lid is closed, the sealing ring 13 fits against the upper end of the box body 1, which enhances the sealing of the lunch box and prevents viscous substances from leaking.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A plastic lunchbox that can be opened with one hand, comprising a lunchbox body, characterized in that: The lunch box body includes a box body (1), a box lid (2), and a button (3). The upper outer side of the box body (1) is provided with a protrusion (4). The box lid (2) is located above the protrusion (4), and one end of the box lid (2) is hinged to one end of the protrusion (4). The top side of the box lid (2) is hinged to the button (3), and the inner side wall of the end of the button (3) away from the hinge point of the box lid (2) and the protrusion (4) is symmetrically provided with fastening points (9). One end of the protrusion (4) is provided with an installation groove (10) that matches the button (3), and the bottom of the protrusion (4) is provided with a groove (11).

2. A plastic lunchbox that can be opened with one hand according to claim 1, characterized in that: The top side of the box cover (2) is provided with a recessed part one (5), and the recessed part one (5) is provided with a recessed part two (6) on the side away from the mounting groove (10). One end of the buckle (3) is located in the recessed part one (5). The bottom of the buckle (3) near the recessed part two (6) is symmetrically provided with connecting posts (8). The inner wall of the recessed part two (6) is symmetrically provided with insertion holes (7) that are adapted to the connecting posts (8).

3. A plastic lunchbox that can be opened with one hand according to claim 2, characterized in that: The button (3) has an L-shaped structure, and the lower end of the vertical part of the button (3) is curved outward. The buckle point (9) is connected to the vertical part of the button (3), and the buckle point (9) is triangular in shape.

4. A plastic lunch box that can be opened with one hand according to claim 3, characterized in that: The bottom of the box cover (2) is provided with a sealing groove (12), and a sealing ring (13) is installed in the sealing groove (12), and the sealing ring (13) corresponds to the upper end of the box body (1).

5. A plastic lunchbox that can be opened with one hand according to claim 2, characterized in that: A number of fixing blocks (14) are fixedly installed on one end of the box cover (2), and a rotating rod (15) is fixedly installed between adjacent fixing blocks (14). An arc-shaped sleeve (16) is provided on the top of the rotating rod (15), and the lower end of the arc-shaped sleeve (16) is fixedly connected to one end of the protrusion (4).

6. A plastic lunchbox that can be opened with one hand according to claim 4, characterized in that: The lunch box body is made of Ecozen material, and the sealing ring (13) is made of silicone.

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