Seamless leakage-proof film-coated paper meal box

Abstract

The utility model provides a seamless leakproof film-coated paper meal box, which comprises a paper box main body, a top end thickening part is fixedly arranged on the outer ring of the top end of the paper box main body, and a first reinforcing ring is arranged between the bottom end of the top end thickening part and the paper box main body through a top mounting groove. The top and bottom strength of the paper meal box can be improved through the top end thickening part, the bottom end thickening part and the supporting ribs, the strength of the top end thickening part can be improved through the first reinforcing ring and the top mounting groove, the strength of the bottom end thickening part can be improved through the second reinforcing ring, and the first reinforcing ring can be supported through the supporting ribs; therefore, the paper lunch box is prevented from being softened or losing the original shape, and the stability of the paper lunch box structure can be improved. A second reinforcing ring, a transverse rod and a longitudinal rod are used for supporting the bottom of the paper lunch box, so that the paper lunch box is prevented from being damaged, a user is prevented from being injured, and the practicability of the paper lunch box can be improved.

Description

Technical Field

[0001] This utility model relates to the field of paper lunch box technology, specifically a seamless, leak-proof coated paper lunch box. Background Technology

[0002] Paper lunch boxes are lunch boxes made from paper materials. Because they are made of paper, they can be recycled and can be disposed of by landfill or incineration without causing serious environmental pollution, thus having high environmental value.

[0003] However, paper lunch boxes have drawbacks such as insufficient strength and unstable structure. At high temperatures, the structure of paper lunch boxes becomes unstable, and the deterioration of the coating may cause the paper lunch box to become soft or lose its original shape, and it is easy to break, burn users, and reduce the practicality of paper lunch boxes.

[0004] Therefore, this utility model provides a seamless, leak-proof coated paper lunch box. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a seamless, leak-proof, laminated paper lunch box to solve the problems mentioned in the background section. This invention increases the strength of the top and bottom of the paper lunch box through a thickened top portion, a thickened bottom portion, and supporting ribs. Furthermore, the stability of the paper lunch box structure is improved through a first reinforcing ring and a second reinforcing ring. The bottom of the paper lunch box is supported by the second reinforcing ring, a transverse rod, and a longitudinal rod to prevent damage and improve the practicality of the paper lunch box.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a seamless, leak-proof, laminated paper lunch box, comprising a paper box body, a top thickening portion fixedly provided on the outer ring of the top of the paper box body, a first reinforcing ring installed between the bottom end of the top thickening portion and the paper box body through a top mounting groove, a bottom thickening portion fixedly provided on the bottom of the paper box body, a second reinforcing ring installed at the bottom of the paper box body through the bottom thickening portion, and a supporting rib fixedly provided between the top end of the bottom thickening portion and the paper box body.

[0007] Furthermore, the interior of the cardboard box body is provided with a placement groove, which is integrally formed with the cardboard box body.

[0008] Furthermore, the top mounting groove is located at the connection point between the top thickened portion and the main body of the cardboard box, and the top thickened portion is annular in shape.

[0009] Furthermore, the supporting ribs are symmetrically fixed at the four corners at both ends of the cardboard box body and on the outer walls of the front and rear sides, and the supporting ribs are integrally formed with the cardboard box body.

[0010] Furthermore, the first reinforcing ring is fixedly installed inside the top thickened portion, and the top end of the supporting rib is supported at the bottom of the first reinforcing ring.

[0011] Furthermore, the bottom end of the thickened portion is provided with a bottom mounting groove, and the second reinforcing ring is snapped into the inside of the bottom mounting groove.

[0012] Furthermore, the bottom mounting groove is annular in shape, and a longitudinal rod is fixedly installed inside the second reinforcing ring. The longitudinal rod is snapped into place inside the bottom end of the cardboard box body.

[0013] Furthermore, transverse rods are fixedly provided between the two sides of the longitudinal rod and the two ends of the second reinforcing ring, and polylactic acid film is coated on the surface of the top thickened part, the inner wall of the cardboard box body, and the inner wall of the placement groove.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a seamless, leak-proof, film-coated paper lunch box. The top and bottom thickening portions and supporting ribs increase the strength of the top and bottom of the paper lunch box. The first reinforcing ring and top mounting groove enhance the strength of the top thickening portion, while the second reinforcing ring enhances the strength of the bottom thickening portion. The supporting ribs support the first reinforcing ring, preventing the paper lunch box from softening or losing its original shape, thus improving the stability of the paper lunch box structure. The second reinforcing ring, transverse rod, and longitudinal rod support the bottom of the paper lunch box, preventing damage and avoiding injury to users, thereby improving the practicality of the paper lunch box. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a seamless, leak-proof coated paper lunch box according to the present invention;

[0016] Figure 2 This is a front cross-sectional view of a seamless, leak-proof coated paper lunch box according to the present invention.

[0017] Figure 3 This is a front-end cross-sectional view of a seamless, leak-proof coated paper lunch box according to the present invention;

[0018] Figure 4 This utility model relates to a second support ring for a seamless, leak-proof coated paper lunch box.

[0019] In the diagram: 1. Main body of the cardboard box; 2. Top thickened part; 3. Bottom thickened part; 4. Placement groove; 5. Support rib; 6. Top mounting groove; 7. First reinforcing ring; 8. Bottom mounting groove; 9. Second reinforcing ring; 10. Longitudinal rod; 11. Transverse rod; 12. Polylactic acid coating. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a seamless, leak-proof, laminated paper lunch box, including a paper box body 1. A top thickening part 2 is fixedly provided on the outer ring of the top of the paper box body 1. A first reinforcing ring 7 is installed between the bottom end of the top thickening part 2 and the paper box body 1 through a top mounting groove 6. A bottom thickening part 3 is fixedly provided on the bottom of the paper box body 1. A second reinforcing ring 9 is installed on the bottom of the paper box body 1 through the bottom thickening part 3. A supporting rib 5 is fixedly provided between the top end of the bottom thickening part 3 and the paper box body 1. The top thickening part 2 can increase the strength of the top of the paper box body 1, the bottom thickening part 3 can increase the strength of the bottom of the paper box body 1, and the supporting rib 5 can enhance the strength of the paper box body 1, thereby ensuring the structural strength of the paper box body 1, preventing damage to the paper box body 1, and making it highly practical.

[0022] In this embodiment, the interior of the paper box body 1 is provided with a placement groove 4. The placement groove 4 is integrally formed with the paper box body 1, which facilitates the processing of the placement groove 4 and does not increase the production cost of the paper lunch box.

[0023] In this embodiment, the top mounting groove 6 is formed at the connection position between the top thickened part 2 and the paper box body 1. The top thickened part 2 is annular in shape. The support ribs 5 are symmetrically fixed at the four corners of both ends and the outer walls of the front and rear sides of the paper box body 1. The support ribs 5 are integrally formed with the paper box body 1. The first reinforcing ring 7 is fixedly installed inside the top thickened part 2. The top of the support rib 5 is supported at the bottom of the first reinforcing ring 7. The support rib 5 can support the first reinforcing ring 7, and the structural strength of the paper box body 1 is increased by the first support rib 5 and the top thickened part 2, thereby improving the stability of the paper lunch box.

[0024] In this embodiment, the bottom end of the thickened part 3 is provided with a bottom mounting groove 8. The second reinforcing ring 9 is snapped into the inside of the bottom mounting groove 8. The bottom mounting groove 8 is annular in shape. A longitudinal rod 10 is fixedly installed inside the second reinforcing ring 9. The longitudinal rod 10 is snapped into the inside of the bottom end of the paper box body 1. A transverse rod 11 is fixedly provided between the two sides of the longitudinal rod 10 and the two ends of the second reinforcing ring 9. The surface of the thickened part 2 at the top, the inner wall of the paper box body 1, and the inner wall of the placement groove 4 are all coated with polylactic acid film 12. The bottom mounting groove 8 facilitates the snapping and installation of the second reinforcing ring 9. The second reinforcing ring 9 can support the bottom end of the paper box body 1 and the thickened part 3 at the bottom end, preventing the paper lunch box from softening and collapsing due to heat. Furthermore, the transverse rod 11 and the longitudinal rod 10 can support the bottom end of the paper box body 1, thereby improving the strength of the paper lunch box.

[0025] When using this seamless, leak-proof coated paper lunch box, the paper lunch box is processed and produced through processes such as pulping, forming, molding and drying, shaping and trimming. The supporting rib 5, the top thickened part 2, the bottom thickened part 3, and the main body 1 are integrally formed. Simultaneously, a top mounting groove 6 and a bottom mounting groove 8 are formed between the top thickened part 2 and the main body 1, and between the bottom thickened part 3 and the main body 1. The first reinforcing ring 7 and the second reinforcing ring 9 are both high-strength plastic products. The first reinforcing ring 7 is snapped into the inside of the top mounting groove 6, and the second reinforcing ring 9 is snapped into the inside of the bottom mounting groove 8. The longitudinal rod 10 is snapped into the inside of the bottom of the main body 1. The thickened portion 2, the bottom thickened portion 3, and the supporting rib 5 increase the strength of the top and bottom of the paper lunch box. The first reinforcing ring 7 and the top mounting groove 6 enhance the strength of the top thickened portion 2, the second reinforcing ring 9 enhances the strength of the bottom thickened portion 3, and the supporting rib 5 supports the first reinforcing ring 7, thus preventing the paper lunch box from softening or losing its original shape and improving the stability of the paper lunch box structure. The second reinforcing ring 9, the transverse rod 11, and the longitudinal rod 10 support the bottom of the paper lunch box, preventing it from breaking and avoiding injury to users. This enhances the practicality of the paper lunch box, facilitates its reuse, and avoids waste.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A seamless leakproof coated paper meal box comprising a paper box body (1), characterized in that, The top end of the paper box body (1) is fixedly provided with a top end thickening portion (2), a first reinforcing ring (7) is mounted between the bottom end of the top end thickening portion (2) and the paper box body (1) through a top mounting slot (6), the bottom end of the paper box body (1) is fixedly provided with a bottom end thickening portion (3), the bottom of the paper box body (1) is mounted with a second reinforcing ring (9) through the bottom end thickening portion (3), and a supporting rib (5) is fixedly arranged between the top end of the bottom end thickening portion (3) and the paper box body (1).

2. The leakproof lamination paper lunch box without seams according to claim 1, characterized in that: The inside of the paper box body (1) is provided with a placing slot (4), and the placing slot (4) is integrally formed with the paper box body (1).

3. The leakproof lamination paper lunch box without seams according to claim 1, characterized in that: The top mounting slot (6) is arranged at the connecting position of the top end thickening portion (2) and the paper box body (1), and the shape of the top end thickening portion (2) is annular.

4. The leakproof lamination paper lunch box without seams according to claim 3, characterized in that: The supporting ribs (5) are symmetrically fixedly arranged on the four corners of the two ends of the paper box body (1) and the outer walls of the front and rear sides, and the supporting ribs (5) are integrally formed with the paper box body (1).

5. The leakproof lamination paper lunch box without seams according to claim 4, characterized in that: The first reinforcing ring (7) is fixedly mounted in the inside of the top end thickening portion (2), and the top end of the supporting rib (5) is supported on the bottom of the first reinforcing ring (7).

6. The leakproof lamination paper lunch box without seams according to claim 1, characterized in that: The bottom end of the bottom end thickening portion (3) is provided with a bottom mounting slot (8), and the second reinforcing ring (9) is clamped and mounted in the inside of the bottom mounting slot (8).

7. The leakproof lamination paper lunch box without seams according to claim 6, characterized in that: The bottom mounting slot (8) is annular, the inside of the second reinforcing ring (9) is fixedly mounted with a longitudinal rod (10), and the clamping of the longitudinal rod (10) is mounted in the inside of the bottom end of the paper box body (1).

8. The leakproof lamination paper lunch box without seams according to claim 7, characterized in that: The two sides of the longitudinal rod (10) and the two ends of the second reinforcing ring (9) are fixedly provided with a transverse rod (11), and the surface of the top end thickening portion (2), the inner wall of the paper box body (1) and the inner wall of the placing slot (4) are all coated with a polylactic acid film (12). The bottom end of the bottom end thickening portion (3) is provided with a bottom mounting slot (8), and the second reinforcing ring (9) is clamped and mounted in the inside of the bottom mounting slot (8). The bottom mounting slot (8) is annular, the inside of the second reinforcing ring (9) is fixedly mounted with a longitudinal rod (10), and the clamping of the longitudinal rod (10) is mounted in the inside of the bottom end of the paper box body (1). The two sides of the longitudinal rod (10) and the two ends of the second reinforcing ring (9) are fixedly provided with a transverse rod (11), and the surface of the top end thickening portion (2), the inner wall of the paper box body (1) and the inner wall of the placing slot (4) are all coated with a polylactic acid film (12).

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