Biodegradable disposable meal box
By using bamboo fiber matrix thermoforming for lunch boxes, the problems of chemical migration and difficult degradation are solved, achieving an environmentally friendly, safe, and sustainable lunch box design, while enhancing structural strength and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-14
AI Technical Summary
Existing disposable lunch boxes contain chemicals such as plasticizers and bleach, which are harmful to human health and are difficult to degrade, leading to environmental pollution.
The box is made of bamboo fiber matrix and is hot-pressed. It features a separable snap-fit structure and reinforced edges to enhance structural strength and ensure sealing performance and durability.
It avoids chemical migration, has good biodegradability, reduces environmental pollution, and improves the durability and sealing performance of the lunchbox.
Smart Images
Figure CN224112242U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of disposable lunch box technology, and in particular relates to a biodegradable disposable lunch box. Background Technology
[0002] Disposable lunch boxes are widely used in modern life due to their convenience, especially in the catering service, food processing, and medical fields. However, the widespread use of these products has also brought many problems. First, the materials used in disposable lunch boxes often contain chemicals such as plasticizers and bleach. These substances can migrate into food when they come into contact with it, and long-term ingestion can seriously affect human health, disrupt the balance of the endocrine system, and may cause various diseases, including liver and kidney damage and even cancer.
[0003] Secondly, most disposable lunch boxes are made of non-biodegradable plastics, generating an alarming amount of waste each year, particularly in China. This plastic waste not only causes serious pollution of the marine and soil environments but also threatens human health through the food chain. Seabirds, sea turtles, and other marine life die from ingesting large amounts of plastic, and plastic films in farmland decompose into microplastics, further damaging soil structure, reducing soil quality, and accelerating the depletion of non-renewable resources.
[0004] Given the health risks and environmental damage caused by disposable lunch boxes, developing environmentally friendly, safe, and sustainable disposable lunch box products has become an urgent task. Utility Model Content
[0005] The purpose of this invention is to provide a biodegradable disposable lunch box, which aims to solve the technical problems of existing disposable lunch boxes, such as the presence of harmful chemicals in the material and the serious environmental damage caused by their difficulty in degradation after disposal.
[0006] To achieve the above objectives, this utility model provides a biodegradable disposable lunch box, comprising:
[0007] A box formed by hot pressing of a bamboo fiber matrix;
[0008] The box body includes a box bottom and a detachable, snap-on box lid extending upward along one end of the box bottom, wherein the edge of the other end of the box bottom is provided with a horizontally outwardly extending snap-on groove, and the box lid is provided with a snap-on skirt corresponding to the position of the snap-on groove.
[0009] The top surface of the box bottom and the bottom surface of the box lid are both provided with contact planes. Both contact planes are folded outward in the horizontal direction to form horizontal reinforcing edges. The thickness of the horizontal reinforcing edges is greater than the thickness of the box body.
[0010] Optionally, both the inner surfaces of the lid and the bottom of the box are provided with annular reinforcing ribs that protrude into the internal cavity.
[0011] Optionally, the surface of the bottom of the box is provided with reinforcing ribs.
[0012] Optionally, the reinforcing ribs are arranged in an arched shape in the bottom area of the box.
[0013] Optionally, the sidewalls of the box bottom are arranged in an inclined manner from bottom to top, and the thickness of the sidewalls of the box bottom gradually decreases from bottom to top.
[0014] Optionally, the outer sidewall of the bottom of the box is provided with anti-slip texture, which is a longitudinally arranged wave-shaped protrusion.
[0015] Optionally, the top of the box lid is provided with a vent hole, and the vent hole is covered with a peelable bamboo fiber sealing film.
[0016] Optionally, the box body is provided with a detachable partition plate for separating the space between the box lid and the box bottom. The partition plate is made of bamboo fiber matrix and has a positioning flange on its edge that matches the shape of the inner wall of the box bottom.
[0017] Optionally, the upper surface of the inner wall of the box bottom is provided with an array of anti-adhesion micro-protrusions.
[0018] Optionally, the bump height of the bump array is 0.1-0.3 mm, and the density is 20-50 bumps / cm².
[0019] The biodegradable disposable lunch box provided in this embodiment of the present invention has at least one of the following technical effects:
[0020] This utility model relates to a biodegradable disposable lunch box.
[0021] The box body is made of bamboo fiber matrix through hot pressing. Bamboo fiber is a natural biomaterial, and compared to traditional lunch box materials containing plasticizers, bleach, and other chemicals, it avoids the harm to human health caused by the migration of chemicals into food. At the same time, bamboo fiber has good biodegradability, effectively solving the problem of the difficulty in degrading disposable lunch boxes after disposal, reducing environmental pollution, including avoiding marine and soil pollution caused by plastic lunch boxes, and the adverse effects of consuming non-renewable resources due to non-degradability. It meets the needs of environmental protection, safety, and sustainable development.
[0022] This lunchbox features a detachable, snap-on lid with a snap-on groove at one end of the bottom and a corresponding snap-on skirt on the lid. This design makes the lunchbox easy to open and close, and the snap-on mechanism ensures a tight seal between the lid and the body, effectively guaranteeing the lunchbox's airtightness and preventing food spillage.
[0023] Both the top surface of the bottom of the box and the bottom surface of the lid are provided with contact planes, and are folded outward to form a horizontal reinforcing edge with a thickness greater than that of the box body. The horizontal reinforcing edge can enhance the structural strength of the box body and lid, making the lunch box less likely to deform under the weight during the process of holding food, improving the durability of the lunch box and ensuring its normal use function. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a structural schematic diagram provided for an embodiment of the present utility model.
[0026] Figure 2 This is another schematic diagram of the unfolded structure provided for an embodiment of the present utility model.
[0027] The following are the labeling elements in the figure:
[0028] 10. Box body; 20. Box bottom; 21. Fastening groove;
[0029] 30. Box lid; 31. Fastening skirt; 40. Contact surface;
[0030] 41. Horizontal reinforcing edge; 50. Circular reinforcing rib; 60. Reinforcing rib. Detailed Implementation
[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.
[0032] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0035] In one embodiment of this utility model, such as Figures 1-2 As shown, a biodegradable disposable lunch box is provided, comprising:
[0036] Box 10 is formed by hot pressing of bamboo fiber matrix;
[0037] The box body 10 includes a box bottom 20 and a separable and snap-fit box lid 30 extending upward along one end of the box bottom 20. The other end of the box bottom 20 has a horizontally outwardly extending snap-fit groove 21, and the box lid 30 has a snap-fit skirt 31 at the position corresponding to the snap-fit groove 21.
[0038] The top surface of the box bottom 20 and the bottom surface of the box cover 30 are both provided with contact planes 40. Both contact planes 40 are folded outward in the horizontal direction to form a horizontal reinforcing edge 41. The thickness of the horizontal reinforcing edge 41 is greater than the thickness of the box body 10.
[0039] Specifically, the biodegradable disposable lunch box of this utility model,
[0040] The box 10 is made of bamboo fiber matrix through hot pressing. Bamboo fiber is a natural biomaterial. Compared with traditional lunch box materials containing plasticizers, bleach, and other chemicals, it avoids the harm to human health caused by the migration of chemicals into food. At the same time, bamboo fiber has good biodegradability, effectively solving the problem of the difficulty in degrading disposable lunch boxes after disposal, reducing environmental pollution, including avoiding marine and soil pollution caused by plastic lunch boxes, and the adverse effects of consuming non-renewable resources due to non-degradability. It meets the needs of environmental protection, safety, and sustainable development.
[0041] The lunchbox features a detachable, snap-on lid 30, with a snap-on groove 21 at one end of the bottom 20 and a corresponding snap-on skirt 31 on the lid 30. This design makes the lunchbox easy to open and close, and the snap-on mechanism ensures a tight connection between the box body 10 and the lid 30, effectively guaranteeing the lunchbox's sealing performance and preventing food spillage.
[0042] The top surface of the bottom 20 and the bottom surface of the lid 30 are both provided with contact planes 40, which are folded outward to form a horizontal reinforcing edge 41 with a thickness greater than that of the body 10. The horizontal reinforcing edge 41 can enhance the structural strength of the body 10 and the lid 30, so that the lunch box is not easily deformed due to the weight during the food filling process, thereby improving the durability of the lunch box and ensuring its normal use function.
[0043] In another embodiment of this utility model, such as Figures 1-2 As shown, both the lid 30 and the bottom 20 have annular reinforcing ribs 50 protruding into the internal cavity on their inner surfaces. Specifically, these annular reinforcing ribs 50 can further enhance the structural strength of the box body 10, ensuring that the box body 10 will not easily deform when food is loaded.
[0044] In another embodiment of this utility model, such as Figures 1-2 As shown, the surface of the box bottom 20 is provided with reinforcing ribs 60. The depth of the reinforcing ribs 60 is 80%-90% of the thickness of the box bottom 20, and the ends are rounded. Specifically, this design not only increases the strength of the box bottom 20, but the rounded end design can also avoid causing unnecessary injury to the user during use.
[0045] In another embodiment of this utility model, such as Figures 1-2 As shown, the reinforcing ribs 60 are arranged in an arched shape within the area of the box bottom 20. Specifically, the arched reinforcing rib design 60 can more effectively distribute pressure and improve the load-bearing capacity of the box bottom 20.
[0046] In another embodiment of this utility model, such as Figures 1-2 As shown, the sidewalls of the box bottom 20 are arranged obliquely from bottom to top, and the thickness of the sidewalls gradually decreases from bottom to top. The connection between the inner sidewall and the box bottom 20 is provided with a rounded corner structure, wherein the rounded corner radius R ≥ 2mm. Specifically, this design not only makes the lunchbox more aesthetically pleasing, but the rounded corner structure also reduces stress concentration and improves the durability of the structure.
[0047] In another embodiment of this utility model, such as Figures 1-2 As shown, the outer sidewall of the bottom 20 of the box has anti-slip texture, which consists of longitudinally arranged wavy protrusions. Specifically, this anti-slip texture design can effectively increase the friction when the user holds the box, preventing it from slipping during use.
[0048] In another embodiment of this utility model, such as Figures 1-2 As shown, the lid 30 has ventilation holes at the top, and a peelable bamboo fiber sealing film covers the ventilation holes. Specifically, the ventilation holes ensure air circulation inside the food container, while the peelable bamboo fiber sealing film maintains the freshness of the food and is convenient for users.
[0049] In another embodiment of this utility model, such as Figures 1-2 As shown, the box body 10 has a removable partition plate inside, which separates the space between the box lid 30 and the box bottom 20. The partition plate is made of bamboo fiber matrix, and its edge has a positioning flange that matches the shape of the inner wall of the box bottom 20. Specifically, this design allows the food to remain independent when the lunch box is filled with different kinds of food, avoiding cross-contamination.
[0050] In another embodiment of this utility model, such as Figures 1-2 As shown, the upper surface of the inner wall of the box bottom 20 is provided with an array of anti-sticking micro-bumps. Specifically, this micro-bump array design can effectively prevent food from sticking to the box bottom 20, making it easy to clean and use.
[0051] In another embodiment of this utility model, such as Figures 1-2 As shown, the bump height of the bump array is 0.1-0.3mm, and the density is 20-50 bumps / cm². Specifically, this design ensures that the bumps are not too prominent and affect the placement of food, while also effectively preventing food from sticking together.
[0052] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.
[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A biodegradable disposable lunch box, characterized in that, include: A box formed by hot pressing of a bamboo fiber matrix; The box body includes a box bottom and a detachable snap-fit box lid extending upward along one end of the box bottom, wherein the edge of the other end of the box bottom is provided with a horizontally outwardly extending snap-fit groove, and the box lid is provided with a snap-fit skirt at the position corresponding to the snap-fit groove. The top surface of the box bottom and the bottom surface of the box lid are both provided with contact planes. Both contact planes are folded outward in the horizontal direction to form a horizontal reinforcing edge. The thickness of the horizontal reinforcing edge is greater than the thickness of the box body.
2. The biodegradable disposable lunch box according to claim 1, characterized in that, Both the inner surfaces of the lid and the bottom of the box are provided with annular reinforcing ribs that protrude into the internal cavity.
3. The biodegradable disposable lunch box according to claim 1, characterized in that, The bottom surface of the box is provided with reinforcing ribs.
4. The biodegradable disposable lunch box according to claim 3, characterized in that, The reinforcing ribs are arranged in an arch-like pattern in the bottom area of the box.
5. The biodegradable disposable lunch box according to any one of claims 1 to 4, characterized in that, The sidewalls of the box bottom are arranged in an inclined manner from bottom to top, and the thickness of the sidewalls of the box bottom gradually decreases from bottom to top. The connection between the inner sidewall and the box bottom is provided with a rounded corner structure.
6. The biodegradable disposable lunch box according to any one of claims 1 to 4, characterized in that, The outer side wall of the bottom of the box is provided with anti-slip texture, which is a longitudinally arranged wave-shaped protrusion.
7. The biodegradable disposable lunch box according to any one of claims 1 to 4, characterized in that, The top of the box lid has a vent hole, and the vent hole is covered with a peelable bamboo fiber sealing film.
8. The biodegradable disposable lunch box according to any one of claims 1 to 4, characterized in that, The box body is provided with a detachable partition plate for separating the space between the box lid and the box bottom. The partition plate is made of bamboo fiber matrix and has a positioning flange on its edge that matches the shape of the inner wall of the box bottom.
9. The biodegradable disposable lunch box according to any one of claims 1 to 4, characterized in that, The upper surface of the inner wall of the box bottom is provided with an array of anti-adhesion micro-protrusions.
10. The biodegradable disposable lunch box according to claim 9, characterized in that, The bump array has bump heights of 0.1-0.3 mm and a density of 20-50 bumps / cm².