Plastic meal box with edge strengthening structure

Abstract

The utility model relates to the technical field of plastic lunch boxes, and discloses a plastic lunch box with an edge strengthening structure, which solves the problems that the edge strength of an edge opening of an existing plastic lunch box is not high, the edge of the edge opening of the lunch box is easy to crack when the lunch box is held up, and the service life of the lunch box is shortened. An annular inserting groove is formed in the top of the circular lunch box, a telescopic spring is fixedly installed at the inner bottom of the annular inserting groove, a moving ring is fixedly installed at the top of the telescopic spring, an inserting ring is inserted into the upper portion of the interior of the annular inserting groove, a reinforcing ring is fixedly installed at the top of the inserting ring, and the top of the circular lunch box is sleeved with the reinforcing ring. A clamping ring is fixedly mounted on the circumferential surface of the reinforcing ring, two strip-shaped grooves are formed in the circumferential surface of the circular lunch box, and openings are symmetrically formed in the two sides of the top of the circular lunch box; according to the plastic lunch box, the edge of the opening can be reinforced, so that the edge of the opening of the lunch box cannot crack when the lunch box is held, and the service life of the lunch box is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of plastic lunch box technology, specifically a plastic lunch box with edge reinforcement structure. Background Technology

[0002] Plastic lunch boxes are containers made of food-grade plastic raw materials, mainly used for takeaway food, and are commonly used in daily life, such as for picnics or hikes. Plastic lunch boxes come in various materials, each with its specific usage conditions and limitations. They also offer a variety of styles and sizes. Square plastic lunch boxes can be used to store various condiments; rectangular plastic lunch boxes are suitable for storing foods with moisture, such as fruits, vegetables, and seafood; round plastic lunch boxes are suitable for storing sauces, gravy, and various side dishes. As consumers increasingly value health, people are paying attention to the healthiness of the materials used in plastic lunch boxes. Hygienic and safe materials, harmless to the human body, include PC, PE, and PP materials, with PP being a common material for plastic lunch boxes. Currently, the edge strength of plastic lunch boxes is not high, making them prone to cracking when lifted, reducing their lifespan. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a plastic lunch box with an edge-reinforced structure, which effectively solves the problem that the edge strength of existing plastic lunch boxes is not high, and the edge of the lunch box is prone to cracking when picked up, thus reducing its service life.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plastic lunch box with an edge-reinforced structure, comprising a circular lunch box, an annular insertion groove on the top of the circular lunch box, a telescopic spring fixedly installed at the bottom of the annular insertion groove, a movable ring fixedly installed at the top of the telescopic spring, an insertion ring inserted into the upper part of the annular insertion groove, a reinforcing ring fixedly installed at the top of the insertion ring, the reinforcing ring being fitted onto the top of the circular lunch box, a retaining ring fixedly installed on the circumferential surface of the reinforcing ring, two strip grooves on the circumferential surface of the circular lunch box, symmetrical openings on both sides of the top of the circular lunch box, two limiting blocks symmetrically fixedly installed on the circumferential surface of the insertion ring, the two limiting blocks being installed inside the two openings, a limiting hole being opened in the middle of the top of the two limiting blocks, a limiting head fixedly installed at the top of the two strip grooves, the two limiting heads matching the two limiting holes.

[0005] Preferably, the circumference of the moving ring is symmetrically provided with two limiting sliders, and the inner wall of the annular insertion groove is symmetrically provided with two limiting grooves, and the two limiting sliders are slidably installed inside the two limiting grooves.

[0006] Preferably, the circular lunch box has a top cover, a connecting ring is fixedly installed at the bottom of the top cover, and a buckle is fixedly installed at the bottom of the connecting ring, with the buckle engaging with the retaining ring.

[0007] Preferably, a mounting groove is provided on one side of the top of the top cover, and a vent hole is provided at one end of the bottom of the mounting groove. A movable cover is rotatably installed inside the mounting groove, and a toggle head is fixedly installed at one end of the top of the movable cover.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the operator aligns the two limiting blocks with the two openings, and then inserts the plug ring on the reinforcing ring into the inside of the annular plug groove and sets the reinforcing ring on the top of the round lunch box. When the plug ring is inserted into the inside of the annular plug groove, it will push the moving ring down. When the moving ring moves down, it will drive the two limiting sliders to slide along the inside of the two limiting slide grooves, which increases the stability when the moving ring moves down. When the moving ring moves down, it will squeeze the telescopic spring to contract.

[0009] The operator then rotates the reinforcing ring. As the reinforcing ring rotates, it causes the two limiting blocks to rotate along the two strip grooves. The operator then releases the reinforcing ring, which, under the elastic force of the telescopic spring, pushes the moving ring upwards. This upward movement of the moving ring, through the insertion ring, causes the two limiting blocks to move upwards, thus fitting the two limiting holes on the two limiting heads onto their surfaces for positioning. This quickly completes the installation of the reinforcing ring. The reinforcing ring effectively improves the strength of the edge of the round lunchbox. When installing the top cover, the operator quickly secures it by inserting the buckle on the bottom connecting ring into the retaining ring on the reinforcing ring. The operator can then rotate the movable cover upwards by turning the head, allowing the vent to open and enabling ventilation of the food inside the round lunchbox.

[0010] This allows the plastic lunchbox to be reinforced at the rim, preventing cracking when picked up and extending its lifespan. Attached Figure Description

[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0012] In the attached diagram:

[0013] Figure 1 This is a schematic diagram of the plastic lunch box with edge reinforcement structure according to this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the mounting slot of this utility model;

[0015] Figure 3This is a schematic diagram of the opening and strip groove structure of this utility model;

[0016] Figure 4 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0017] Figure 5 This is a schematic diagram of the internal structure of the plastic lunch box with edge reinforcement according to this utility model;

[0018] Figure 6 This utility model Figure 5 Enlarged structural diagram at point B;

[0019] Figure 7 This is a schematic diagram of the slider and groove structure of this utility model;

[0020] Figure 8 This utility model Figure 7 Enlarged structural diagram at point C;

[0021] In the diagram: 1. Round lunchbox; 2. Top cover; 3. Mounting slot; 4. Vent hole; 5. Movable cover; 6. Actuating head; 7. Connecting ring; 8. Buckle; 9. Reinforcing ring; 10. Snap ring; 11. Strip groove; 12. Opening; 13. Limiting head; 14. Limiting hole; 15. Telescopic spring; 16. Moving ring; 17. Insertion ring; 18. Limiting block; 19. Annular insertion groove; 20. Limiting slider; 21. Limiting slide groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Depend on Figures 1 to 8The present invention includes a circular lunch box 1. The top of the circular lunch box 1 has an annular insertion groove 19. A telescopic spring 15 is fixedly installed at the bottom inner part of the annular insertion groove 19. A movable ring 16 is fixedly installed at the top of the telescopic spring 15. An insertion ring 17 is inserted into the upper part inside the annular insertion groove 19. A reinforcing ring 9 is fixedly installed at the top of the insertion ring 17. The reinforcing ring 9 is fitted onto the top of the circular lunch box 1. A retaining ring 10 is fixedly installed on the circumferential surface of the reinforcing ring 9. Two strip grooves 11 are formed on the circumferential surface of the circular lunch box 1. The top of the circular lunch box 1 has symmetrical grooves on both sides. There are two limiting blocks 18 fixedly installed symmetrically on the circumference of the insertion ring 17 with opening 12. The two limiting blocks 18 are installed inside the two openings 12. The top center of the top of the two limiting blocks 18 is provided with limiting holes 14. The top of the inside of the two strip grooves 11 is fixedly installed with limiting heads 13. The two limiting heads 13 match the two limiting holes 14. The circumference of the moving ring 16 is provided with two limiting sliders 20 symmetrically. The inner wall of the annular insertion groove 19 is provided with two limiting grooves 21 symmetrically. The two limiting sliders 20 are slidably installed inside the two limiting grooves 21.

[0024] When in use, the operator aligns the two limit blocks 18 with the two openings 12, and then inserts the insertion ring 17 on the reinforcing ring 9 into the inside of the annular insertion groove 19 and puts the reinforcing ring 9 on the top of the round lunch box 1. When the insertion ring 17 is inserted into the inside of the annular insertion groove 19, it will push the moving ring 16 down. When the moving ring 16 moves down, it will squeeze the telescopic spring 15 to contract.

[0025] The operator then rotates the reinforcing ring 9. As the reinforcing ring 9 rotates, it causes the two limiting blocks 18 to rotate along the two strip grooves 11. The operator then releases the reinforcing ring 9, causing the moving ring 16 to move upwards under the elastic force of the telescopic spring 15. As the moving ring 16 moves upwards, it causes the two limiting blocks 18 to move upwards via the insertion ring 17, thus fitting the two limiting holes 14 on the two limiting heads 13 onto their surfaces for positioning. This quickly completes the installation of the reinforcing ring 9. The reinforcement ring 9 effectively improves the strength of the edge of the round lunchbox 1, reinforcing the edge of the plastic lunchbox and preventing cracking when lifted, thus extending its service life.

[0026] The round lunch box 1 has a top cover 2 on top, and a connecting ring 7 is fixedly installed at the bottom of the top cover 2. A buckle 8 is fixedly installed at the bottom of the connecting ring 7, and the buckle 8 is engaged with the retaining ring 10. A mounting groove 3 is opened on one side of the top of the top cover 2. A vent hole 4 is opened at one end of the bottom of the mounting groove 3. A movable cover 5 is rotatably installed inside the mounting groove 3. A toggle head 6 is fixedly installed at one end of the top of the movable cover 5.

[0027] When the moving ring 16 moves, it will cause the two limit sliders 20 to slide along the inside of the two limit grooves 21, which increases the stability of the moving ring 16 when it moves.

[0028] When installing the top cover 2, the operator quickly secures it by inserting the buckle 8 on the bottom connecting ring 7 into the retaining ring 10 on the reinforcing ring 9; the operator can rotate the movable cover 5 upward by turning the head 6, thereby allowing the vent 4 to leak out, thus achieving the effect of ventilating the food inside the round lunch box 1.

Claims

1. A plastic lunch box with edge reinforcement structure, comprising a round lunch box (1), characterized in that: The top of the circular lunch box (1) is provided with an annular insertion groove (19). A telescopic spring (15) is fixedly installed at the bottom of the annular insertion groove (19). A movable ring (16) is fixedly installed at the top of the telescopic spring (15). An insertion ring (17) is inserted into the upper part of the annular insertion groove (19). A reinforcing ring (9) is fixedly installed at the top of the insertion ring (17). The reinforcing ring (9) is fitted onto the top of the circular lunch box (1). A retaining ring (10) is fixedly installed on the circumferential surface of the reinforcing ring (9). Two strip grooves (11) are opened on the circumference of the circular lunch box (1). Openings (12) are symmetrically opened on both sides of the top of the circular lunch box (1). Two limiting blocks (18) are symmetrically fixedly installed on the circumference of the plug ring (17). The two limiting blocks (18) are installed inside the two openings (12). Limiting holes (14) are opened in the middle of the top of the two limiting blocks (18). Limiting heads (13) are fixedly installed on the top of the two strip grooves (11). The two limiting heads (13) match the two limiting holes (14).

2. A plastic lunch box with edge reinforcement structure according to claim 1, characterized in that: The circumference of the moving ring (16) is symmetrically provided with two limiting sliders (20), and the inner wall of the annular insertion groove (19) is symmetrically provided with two limiting grooves (21). The two limiting sliders (20) are slidably installed inside the two limiting grooves (21).

3. A plastic lunch box with edge reinforcement structure according to claim 1, characterized in that: The round lunch box (1) has a top cover (2) on top, and a connecting ring (7) is fixedly installed at the bottom of the top cover (2). A buckle (8) is fixedly installed at the bottom of the connecting ring (7), and the buckle (8) is engaged with the retaining ring (10).

4. A plastic lunch box with edge reinforcement structure according to claim 3, characterized in that: The top cover (2) has an installation groove (3) on one side of its top. A vent hole (4) is provided at one end of the bottom of the installation groove (3). A movable cover (5) is rotatably installed inside the installation groove (3). A toggle head (6) is fixedly installed at one end of the top of the movable cover (5).

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