Degradable disposable high-strength composite lunch box

Abstract

The utility model discloses a degradable disposable high-strength composite meal box relates to tableware technical field, include: box body, the outer surface top of box body is fixedly installed with the boss, the outer surface top of boss is butt joint with the top, the outer surface top of top is installed with two sets of limit plate in the approach middle section department, and the outer surface middle part of two sets of limit plate is inserted with tableware box, the outer surface front and back end of limit plate all is provided with the insertion hole, through the boss butt joint, the connecting mouth opening and closing structure design of top of box body, guarantee food tightness and convenient use, and the top limit plate and positioning assembly cooperation fixed tableware box, solve tableware carrying problem, and the corner reinforcing rib promotes meal box whole compression resistance and fall resistance, prolongs the life, and simultaneously the multilayer composite structure that constitutes by polylactic acid film, polyadipic acid layer etc.

Description

Technical Field

[0001] This utility model relates to the field of tableware technology, specifically to a biodegradable disposable high-strength composite lunch box. Background Technology

[0002] With the increasing awareness of public health, food safety has become a major focus of attention. Disposable lunch boxes are an important carrier of daily meals for groups such as office workers and students, and their usage frequency is extremely high. These groups need to be away from home for long periods of time due to work or study, and at least one meal depends on takeout or bringing their own food. For people living in cities with convenient catering services, choosing a variety of takeout options may not be a problem. However, for workers in special scenarios such as construction site builders and field workers, who are limited by the lack of takeout delivery and cooking conditions in the vicinity, using lunch boxes to bring their own meals has become the main way to ensure their diet.

[0003] However, current lunchbox products on the market have obvious technical shortcomings. On the one hand, the lunchboxes are not protective enough and are easily damaged and deformed when frequently used, stacked, or subjected to external impacts, thus shortening their service life. On the other hand, traditional lunchbox designs do not take into account the storage of tableware. Users need to prepare extra space to store chopsticks, spoons, and other tableware, which not only increases the burden of carrying them but also makes it easy for tableware to be lost or forgotten, greatly reducing the convenience and experience of using them. Utility Model Content

[0004] To solve the above-mentioned technical problems, a biodegradable disposable high-strength composite lunch box is provided. This technical solution solves the problems of insufficient protective performance and the need for additional space to store tableware mentioned in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A biodegradable disposable high-strength composite lunch box includes: a box body, a boss fixedly installed on the top of the outer surface of the box body, a top cover abutting the top of the outer surface of the boss, two sets of limiting plates installed near the middle section of the top of the outer surface of the top cover, a cutlery box inserted into the middle of the outer surface of the two sets of limiting plates, insertion holes opened at the front and rear ends of the outer surfaces of the limiting plates, a positioning shaft inserted into the inner side of the outer surface of the insertion holes, a first connecting plate installed at the bottom end of the shaft surface of the positioning shaft, a second connecting plate installed at the bottom end of the outer surface of the first connecting plate, and the bottom end of the outer surface of the second connecting plate connected to the left and right sides of the outer surface of the box body.

[0007] Preferably, the outer surfaces of the box body and the top cover are provided with connection ports, the upper surface of the top connection port is fitted with a second connecting piece, and the lower surface of the bottom connection port is provided with a first connecting piece.

[0008] Preferably, connecting wires are fixedly installed on the opposite sides of the first connecting piece and the second connecting piece, an inner inclined plate is installed on the inner side of the top of the box body, and slots are opened on the left and right sides of the top of the outer surface of the box body.

[0009] Preferably, a mounting plate is inserted into the inner side of the outer surface of the slot, an outer inclined plate is fixedly installed at the bottom of the outer surface of the mounting plate, and the outer inclined plate is snapped into the inner bottom of the slot, and reinforcing ribs are fixedly installed at the four corners of the outer surface of the box.

[0010] Preferably, the outermost end of the outer surface of the box is provided as a polylactic acid film, and a polyadipate layer is installed on the inner side of the outer surface of the polylactic acid film.

[0011] Preferably, a starch-based composite material layer is fixedly installed on the bottom of the outer surface of the polyadipate layer, and a PBS coating is fixedly installed inside the starch-based composite material layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This solution proposes a biodegradable disposable high-strength composite lunch box. Through the protrusion abutment between the box body and the top cover, and the opening and closing structure of the connection port, the food is ensured to be airtight and easy to use. The top cover limiting plate and positioning components work together to fix the lunch box, solving the problem of carrying tableware. The corner reinforcing ribs improve the overall pressure and drop resistance of the lunch box and extend its service life. At the same time, the multi-layer composite structure composed of polylactic acid film, polyadipate layer, etc., has waterproof, wear-resistant, high strength and good toughness. Moreover, all materials are biodegradable. While meeting the functional requirements, it significantly reduces the environmental pollution caused by disposable tableware, achieving a dual improvement in practicality and environmental protection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the second structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the limiting component in this utility model;

[0017] Figure 4 This is a schematic diagram of the outer shell assembly in this utility model.

[0018] The numbers on the map are:

[0019] 1. Box body; 2. Boss; 3. Top cover; 4. Limiting plate; 5. Cutlery box; 6. First connecting plate; 7. Positioning shaft; 8. Second connecting plate; 9. Slot; 10. Inner inclined plate; 11. Connection port; 12. First connecting piece; 13. Connecting wire; 14. Second connecting piece; 15. Mounting plate; 16. Outer inclined plate; 17. Polylactic acid film; 18. Polyadipate layer; 19. Starch-based composite material layer; 20. PBS coating; 21. Insertion hole; 22. Reinforcing rib. Detailed Implementation

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0021] Reference Figure 1-4 As shown, a biodegradable disposable high-strength composite lunch box includes: a box body 1, a boss 2 fixedly installed on the top of the outer surface of the box body 1, a top cover 3 abutting the top of the outer surface of the boss 2, two sets of limiting plates 4 installed near the middle section of the top of the outer surface of the top cover 3, a cutlery box 5 inserted into the middle of the outer surface of the two sets of limiting plates 4, insertion holes 21 are opened at both the front and rear ends of the outer surface of the limiting plates 4, a positioning shaft 7 is inserted into the inner side of the outer surface of the insertion hole 21, a first connecting plate 6 is installed at the bottom end of the shaft surface of the positioning shaft 7, a second connecting plate 8 is installed at the bottom end of the outer surface of the first connecting plate 6, and the bottom end of the outer surface of the second connecting plate 8 is connected to the left and right sides of the outer surface of the box body 1, a connection port 11 is opened at the front section of the outer surface of the box body 1 and the top of the top cover 3, a second connecting piece 14 is snapped into the upper end of the outer surface of the top connection port 11, a first connecting piece 12 is provided on the lower side of the outer surface of the bottom connection port 11, and a connecting wire 13 is fixedly installed on the opposite side of the first connecting piece 12 and the second connecting piece 14.

[0022] Through the above design, the box body 1 serves as the main body of the lunchbox, carrying the food. The protrusion 2 at its top provides a precise abutment position for the top cover 3, ensuring the lunchbox is sealed and preventing food spillage. Two sets of limiting plates 4 on the top cover 3 are used to secure the cutlery box 5, solving the problem of inconvenient tableware carrying. The insertion holes 21 of the limiting plates 4 cooperate with the positioning shaft 7, the first connecting plate 6, and the second connecting plate 8, ensuring the cutlery box is securely installed and easy to disassemble and use. The connection port 11 between the box body 1 and the top cover 3, the first connecting piece 12, the second connecting piece 14, and the connecting screw 13 constitute an opening and closing structure, achieving a tight connection between the box body and the top cover, and convenient opening, ensuring the food is sealed during transport and facilitating user access to the food.

[0023] Reference Figure 2-3As shown, further, an inner inclined plate 10 is installed on the inner side of the top of the box body 1, and slots 9 are opened on the left and right sides of the top of the outer surface of the box body 1. An installation plate 15 is inserted into the inner side of the outer surface of the slot 9, and an outer inclined plate 16 is fixedly installed at the bottom of the outer surface of the installation plate 15. The outer inclined plate 16 is snapped into the bottom of the inner side of the slot 9, and reinforcing ribs 22 are fixedly installed at the four corners of the outer surface of the box body 1.

[0024] Through the above design, the inner inclined plate 10 on the inner side of the top of the box 1 helps guide food in and out, reducing residue. The slots 9 on the left and right sides of the top, together with the mounting plate 15 and the outer inclined plate 16, further secure the box 1 and the top cover 3, preventing separation and food waste, and meeting users' needs for separate storage of different foods. The reinforcing ribs 22 at the four corners of the box 1 increase local structural strength, disperse external impact, effectively improve the overall pressure resistance and drop resistance of the lunch box, prevent damage and deformation caused by external forces during use and transportation, and extend the service life of the lunch box.

[0025] Reference Figure 4 As shown, further, the outermost end of the outer surface of the box 1 is set as a polylactic acid film 17, a polyadipate layer 18 is installed on the inner side of the outer surface of the polylactic acid film 17, a starch-based composite material layer 19 is fixedly installed on the bottom of the outer surface of the polyadipate layer 18, and a PBS coating 20 is fixedly installed inside the starch-based composite material layer 19.

[0026] Through the above scheme, the outer surface of the box 1 is composed of a multi-layer composite structure consisting of a polylactic acid film 17, a polyadipate layer 18, a starch-based composite material layer 19, and a PBS coating 20. The polylactic acid film 17, as the outermost layer, provides excellent waterproofing and abrasion resistance to protect the internal structure. The polyadipate layer 18 enhances the toughness of the lunchbox, the starch-based composite material layer 19 provides basic strength, and the PBS coating 20 further improves waterproofing and corrosion resistance. These biodegradable materials work synergistically to ensure that the lunchbox, while possessing high strength, can naturally degrade after disposal, conforming to environmental protection principles and reducing the pollution caused by disposable tableware.

[0027] Working principle and implementation method: When the user opens the top cover 3, the connecting wire 13 pulls the first connecting piece 12 and the second connecting piece 14 to move synchronously to prevent the top cover 3 from being lost. The tableware box 5 is pulled out from the limiting plate 4 to take out the tableware. After the meal, the tableware is put back in its original position and locked by the positioning shaft 7 to prevent it from falling off. When the top cover 3 is closed, the boss 2 is tightly engaged with the box body 1. The mounting plate 15 drives the outer inclined plate 16 to insert into the slot 9, which further strengthens the connection between the box body 1 and the top cover 3. The reinforcing rib 22 supports and resists pressure. After use, because the tableware box is made of biodegradable materials such as polylactic acid film 17 and polyadipate layer 18, it can decompose naturally after disposal, reducing environmental pollution.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A biodegradable disposable high-strength composite lunch box, comprising: The box body (1) is characterized in that: a boss (2) is fixedly installed on the top of the outer surface of the box body (1), a top cover (3) is abutted on the top of the outer surface of the boss (2), two sets of limiting plates (4) are installed near the middle section of the top of the outer surface of the top cover (3), a tableware box (5) is inserted into the middle of the outer surface of the two sets of limiting plates (4), and a socket (21) is opened at both the front and rear ends of the outer surface of the limiting plate (4), a positioning shaft (7) is inserted into the inner side of the outer surface of the socket (21), a first connecting plate (6) is installed at the bottom of the shaft surface of the positioning shaft (7), a second connecting plate (8) is installed at the bottom of the outer surface of the first connecting plate (6), and the bottom of the outer surface of the second connecting plate (8) is connected to the left and right sides of the outer surface of the box body (1).

2. The biodegradable disposable high-strength composite lunch box according to claim 1, characterized in that: Both the outer surfaces of the box body (1) and the top cover (3) are provided with connection ports (11). The upper surface of the top connection port (11) is fitted with a second connecting piece (14), and the lower surface of the bottom connection port (11) is provided with a first connecting piece (12).

3. The biodegradable disposable high-strength composite lunch box according to claim 2, characterized in that: A connecting wire (13) is fixedly installed on the opposite side of the first connecting piece (12) and the second connecting piece (14). An inner inclined plate (10) is installed on the inner side of the top of the box body (1). Slots (9) are opened on the left and right sides of the top of the outer surface of the box body (1).

4. The biodegradable disposable high-strength composite lunch box according to claim 3, characterized in that: An installation plate (15) is inserted into the inner side of the outer surface of the slot (9). An outer inclined plate (16) is fixedly installed at the bottom of the outer surface of the installation plate (15), and the outer inclined plate (16) is snapped into the bottom of the inner side of the slot (9). Reinforcing ribs (22) are fixedly installed at the four corners of the outer surface of the box (1).

5. The biodegradable disposable high-strength composite lunch box according to claim 1, characterized in that: The outermost end of the outer surface of the box (1) is provided with a polylactic acid film (17), and a polyadipate layer (18) is installed on the inner side of the outer surface of the polylactic acid film (17).

6. The biodegradable disposable high-strength composite lunch box according to claim 5, characterized in that: A starch-based composite material layer (19) is fixedly installed on the bottom of the outer surface of the polyadipate layer (18), and a PBS coating (20) is fixedly installed inside the starch-based composite material layer (19).

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