Oil-proof lunch box using plastic-substitute paper

Abstract

The utility model provides an oil-proof lunch box using plastic substitute paper, comprising a lunch box body and a lunch box cover, wherein the oil-proof lunch box is made of plastic substitute paper, which can well prevent oil and water in food from penetrating to the outside of the lunch box; the interior of the lunch box adopts a compartment design, which can separate rice from dishes; the edge of the lunch box is provided with a structure that seals the lunch box cover and the lunch box body, so that food in the lunch box can be kept hygienic; the operation is simple and safe, the heat preservation and heat insulation and oil seepage prevention effects are good, and the lunch box is more lightweight and environmentally friendly.

Description

Technical Field

[0001] The utility model belongs to the field of tableware, and in particular relates to an oil-proof lunch box using plastic-substitute paper. Background Art

[0002] Today’s takeout industry is growing rapidly, bringing with it a huge demand for disposable tableware. Traditional lunch boxes are mainly made of foam plastic or PVC material, which is suitable for the food tableware industry and is easy to shape and mass-produced. However, mass-produced plastic disposable tableware is difficult to recycle, which poses a considerable challenge to environmental protection. It is contrary to the environmental protection and low-carbon policy currently advocated by the country. In addition, due to the particularity of heavy oil in Chinese food, plastic and ordinary paper disposable lunch boxes are prone to oil leakage, which can easily cause impacts during transportation and use. At the same time, most of the lunch boxes in the prior art do not achieve a balance between separation and oil prevention. Most of the disposable lunch boxes that achieve separation of dishes fail to achieve good oil leakage prevention, and most of the disposable lunch boxes that achieve oil leakage prevention do not achieve good separation of dishes. Utility Model Content

[0003] In view of the technical defects existing in the background technology, the utility model proposes an oil-proof lunch box using plastic-substitute paper, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0004] An oil-proof lunch box using plastic substitute paper comprises: a lunch box, the lunch box comprising a lunch box body and a lunch box cover, the lunch box is made of plastic substitute paper, the plastic substitute paper comprises a paper matrix, a wear-resistant layer and a heat-insulating coating layer, the lunch box body is provided with a wear-resistant layer, a paper matrix and a heat-insulating coating layer in sequence from the inside to the outside, the inner wall of the lunch box body is provided with a leak-proof coating layer, the leak-proof coating layer is provided on a side of the heat-insulating coating layer away from the paper matrix, the lunch box cover is provided with a wear-resistant layer, a paper matrix and a heat-insulating coating layer in sequence from top to bottom, and the lunch box body and the lunch box cover are movably connected by means of structural buckling.

[0005] Preferably, an outward-turned spiral curl is provided at the top edge of the lunch box body, and the cross-section of the spiral curl is spiral. A circle of crescent-shaped grooves is provided around the lunch box cover, and the positions of the spiral curl correspond to the crescent-shaped grooves. The lunch box body and the lunch box cover are buckled with each other through the spiral curl and the crescent-shaped groove. Compared with the semi-buckled sealing structure of the oil-proof lunch box in the prior art, the crescent-shaped groove forms a nearly fully buckled sealing structure after being buckled with the spiral curl, and the sealing effect is more outstanding.

[0006] Preferably, a leak-proof coating layer is provided at the top of the spiral curling edge, and the leak-proof coating layer is provided between the crescent-shaped slot and the spiral curling edge. The crescent-shaped slot, the leak-proof coating layer and the spiral curling edge form a sealed and oil-proof structure, so that the leak-proof design and the buckle structure design cooperate with each other to form a better sealed and oil-proof structure.

[0007] Preferably, the lunch box body is provided with a plurality of partitions perpendicular to the bottom of the lunch box body, and the partitions divide the interior of the lunch box body into a plurality of spaces of different sizes, thereby increasing the position options for accommodating meals in the lunch box, realizing the separation of rice and dishes combined with the oil leakage prevention of the lunch box, and improving the user experience.

[0008] Preferably, the partition is composed of a plate layer and a heat-insulating layer, and the outer surface of the plate layer is provided with a heat-insulating layer, which is beneficial for different compartments to maintain their own temperatures and convenient for users to load dishes of different temperatures into different compartments.

[0009] Preferably, the plastic-substitute paper is tightly compounded from the outside to the inside by a wear-resistant layer, a paper matrix, and a heat-insulating coating layer in sequence by hot pressing. The plastic-substitute paper material tightly compounded by hot pressing is beneficial to enhancing the structural strength of the lunch box.

[0010] Preferably, the lunch box cover is provided with a plurality of air holes so that the hot gas pressure in the lunch box is kept consistent with the external atmospheric pressure, thereby preventing the hot dishes from continuously heating the air in the lunch box, causing the lunch box to bulge and affect the sealing.

[0011] Preferably, a tongue plate is provided at one corner of the lunch box cover to facilitate the user to easily open the lunch box cover when using it.

[0012] The beneficial effects of the utility model are as follows: the oil-proof lunch box is made of plastic-substitute paper, and compared with ordinary lunch box paper, it has an environmentally friendly coating with multiple functions. Compared with disposable lunch boxes made of plastic and ordinary paper oil-proof lunch boxes, it can effectively prevent oil and water in the food from penetrating to the outside of the lunch box. The wear-resistant layer on the outer surface can enhance the wear resistance of the outer surface of the lunch box while strengthening the structural strength of the lunch box. At the same time, a better buckle structure is adopted to make the sealing effect better and more stable.

[0013] At the same time, the design of the leak-proof coating layer and the buckle structure complement each other. The sealing effect of the buckle structure supplements the buckle joints of the lunch box body and the lunch box cover that are difficult to be taken care of by the oil-proof layer, so that the entire lunch box forms a complete oil-proof structure, which effectively solves the problem that ordinary disposable lunch boxes only prevent oil leakage from the box body but not from oil leakage from the buckle interface when the lunch box is tilted. The leak-proof coating layer arranged on the top of the spiral curling fills the tiny gaps inside the buckle structure when the buckle structure is buckled, so that the sealing effect is better. At the same time, the oil-proof coating itself has certain lubricity and wear resistance, which effectively solves the problem that the buckle structure relies on the friction and sliding buckle of the plastic paper, but the surface of the plastic paper matrix is ​​rough, which is not conducive to the sliding, extrusion and buckle of the buckle structure, making the working process of the buckle structure smoother, and the two complement each other.

[0014] In addition, the lunch box adopts a compartment design, which achieves the separation of rice and dishes while preventing the lunch box from leaking oil. The heat-insulating coating layer on the lunch box lid helps prevent the heat of the food from escaping through the lunch box lid and causing the food to cool down. It is simple and efficient to use, and is lighter and more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the side cross-sectional structure of the oil-proof lunch box of the utility model.

[0016] Figure 2 The utility model is a schematic diagram of the top view of the lunch box cover of the oil-proof lunch box.

[0017] Figure 3 The utility model is a schematic diagram of the structure of the lunch box body of the oil-proof lunch box in a top view.

[0018] Figure 4 It is a schematic side cross-sectional structure diagram of the oil-proof lunch box of the utility model when the buckle structure is separated.

[0019] Figure 5 It is a schematic side cross-sectional structure diagram of the buckling structure of the oil-proof lunch box of the utility model when buckled.

[0020] Figure 6 The utility model is a schematic diagram of the cross-sectional structure of the plastic substitute paper used in the oil-proof lunch box.

[0021] Figure 7 The utility model is a schematic diagram of the side cross-sectional structure of the partition of the oil-proof lunch box.

[0022] In the figure: 1. lunch box; 2. lunch box body; 21. leak-proof coating layer; 22. spiral curling; 23. partition; 231. board layer; 232. heat-insulating layer; 3. lunch box cover; 31. crescent-shaped slot; 32. air hole; 33. tongue plate; 4. plastic-substitute paper; 41. paper matrix; 42. wear-resistant layer; 43. heat-insulating coating layer. DETAILED DESCRIPTION

[0023] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0024] Please refer to Figure 1 The utility model provides an oil-proof lunch box using plastic-substitute paper, comprising:

[0025] A lunch box 1, comprising a lunch box body 2 and a lunch box cover 3, the lunch box 1 is made of plastic-substitute paper 4, the plastic-substitute paper 4 comprises a paper matrix 41, a wear-resistant layer 42 and a thermal insulation coating layer 43, the lunch box body 2 is provided with a wear-resistant layer 42, a paper matrix 41 and a thermal insulation coating layer 43 from the inside to the outside, the inner wall of the lunch box body 2 is provided with a leak-proof coating layer 21, the leak-proof coating layer 21 is provided on a side of the thermal insulation coating layer 43 away from the paper matrix 41, the lunch box cover 3 is provided with a wear-resistant layer 42, a paper matrix 41 and a thermal insulation coating layer 43 from top to bottom, and the lunch box body 2 and the lunch box cover 3 are movably connected by structural buckling.

[0026] An outward-turned spiral curling edge 22 is provided at the top edge of the lunch box body 2, and the cross-section of the spiral curling edge 22 is spiral-shaped. A circle of crescent-shaped grooves 31 are provided around the lunch box cover 3, and the positions of the spiral curling edge 22 and the crescent-shaped grooves 31 correspond to each other. The lunch box body 2 and the lunch box cover 3 are buckled with each other through the spiral curling edge 22 and the crescent-shaped grooves 31. Compared with the semi-buckled sealing structure of the disposable lunch box in the prior art, the crescent-shaped groove 31 forms a nearly fully buckled sealing structure after being buckled with the spiral curling edge 22, and the sealing effect is more outstanding.

[0027] A leak-proof coating layer 21 is provided at the top of the spiral curling edge 22, and the leak-proof coating layer 21 is provided between the crescent-shaped slot 31 and the spiral curling edge 22. The crescent-shaped slot 31, the leak-proof coating layer 21 and the spiral curling edge 22 form a sealed oil-proof structure, so that the leak-proof design and the buckle structure design cooperate with each other to form a better sealed oil-proof structure.

[0028] The lunch box body 2 is provided with a plurality of partitions 23 perpendicular to the bottom of the lunch box body 2. The partitions 23 divide the interior of the lunch box body 2 into a plurality of spaces of different sizes, thereby increasing the position options for accommodating food in the lunch box 1, realizing the separation of rice and dishes combined with the oil leakage prevention of the lunch box 1, and improving the user experience.

[0029] The partition 23 is composed of a plate layer 231 and a heat insulating layer 232. The outer surface of the plate layer 231 is provided with a heat insulating layer 232, which is beneficial for different compartments to maintain their own temperatures and convenient for users to load dishes of different temperatures into different compartments.

[0030] The plastic substitute paper 4 is tightly compounded from the outside to the inside by a wear-resistant layer 42, a paper matrix 41, and a heat-insulating coating layer 43 in sequence by hot pressing. The plastic substitute paper 4 material tightly compounded by hot pressing is beneficial to strengthening the structural strength of the lunch box.

[0031] The lunch box cover 3 is provided with a plurality of air holes 32, so that the hot gas pressure in the lunch box is kept consistent with the external atmospheric pressure, thereby preventing the lunch box from bulging and affecting the sealing due to the hot food continuously heating the air in the lunch box.

[0032] A tongue plate 33 is provided at one corner of the lunch box cover 3, so that the user can easily open the lunch box cover 3 when using it.

[0033] When the utility model is used: First, the oil-proof lunch box is mainly composed of a lunch box body 2 and a lunch box cover 3, wherein the lunch box body 2 is provided with a partition 23 that divides it into multiple spaces, which is the main working part for accommodating food. The lunch box cover 3 is above the lunch box body 2, and is snap-fitted with the lunch box body 2 through a spiral curling edge 22 and a crescent-shaped slot 31. Several partitions 23 perpendicular to the bottom of the lunch box body 2 divide the interior of the lunch box body 2 into several spaces of different sizes, so that the rice and dishes in the lunch box are effectively separated. When the lunch box 1 needs to be used, the user holds the lunch box body 2, pinches the tongue plate 33 at one corner of the lunch box cover 3 and lifts it upward with moderate force, separates the snap-fitting structure of the spiral curling edge 22 and the crescent-shaped slot 31 to open the lunch box cover 3. After putting food into the lunch box body 2, place the lunch box cover 3 on the lunch box body 2 and align the crescent-shaped groove 31 on the lunch box cover 3 with the spiral curling edge 22 on the edge of the lunch box body 2, and press the lunch box cover 3 downward with appropriate force, so that the crescent-shaped groove 31 on the lunch box cover 3 squeezes the spiral curling edge 22 of the lunch box body 2, thereby causing a slight elastic deformation, and the spiral curling edge 22 is able to squeeze into the crescent-shaped groove 31, thereby achieving a good sealing performance.

[0034] There are a series of limitations and problems in the design of traditional disposable ordinary paper lunch boxes: the food in the lunch box is hot, and the lunch box cannot be insulated to prevent oil leakage. First, it is easy for the heat of the food to dissipate through the heat conduction of the lunch box itself, making the food cool. Second, it is inconvenient to hold. Third, it is easy to heat the air in the lunch box to cause thermal expansion, resulting in bulging and deformation of the lunch box, affecting safety and sealing. Fourth, the oil of the food will seep out of the surface of the lunch box, affecting the user experience. Furthermore, the relatively simple semi-fastening sealing structure or even just the covering structure makes the connection stability between the lunch box lid and the lunch box body poor, and the lunch box lid is easy to separate and lose, exposing the food in the lunch box to the natural environment and being contaminated. Or when the lunch box containing food is tilted, the loose fastening structure will cause the oil and water in the food or even the food itself to leak, which seriously limits its use. What's more, most of the disposable lunch boxes in the prior art do not achieve a functional balance between food separation and oil prevention. Most of the disposable lunch boxes that achieve food separation fail to achieve better oil leakage prevention of the lunch box body, while most of the disposable lunch boxes that achieve oil leakage prevention of the lunch box body do not achieve better food separation.

[0035] The utility model solves the above problems well during use:

[0036] First, the lunch box 1 is provided with a large area of ​​heat-insulating coating layer 43 and leak-proof coating layer 21. The heat-insulating coating layer 43 can prevent the heat of the food in the lunch box 1 from escaping through the heat conduction of the lunch box itself, which not only prevents the food from getting cold, but also makes the temperature of the outer surface of the lunch box 1 more user-friendly when holding it. The leak-proof coating layer 21 can also effectively prevent the oil in the food from penetrating out of the lunch box 1.

[0037] Second, by designing a better and tighter buckling structure, the buckling stability and sealing effect of the lunch box body 2 and the lunch box cover 3 are improved. The mutual buckling of the crescent-shaped slot 31 and the spiral curling edge 22 makes the buckling structure form a nearly fully buckled closed structure, which improves the buckling stability and sealing of the lunch box cover 3. The fully buckled closed structure can still maintain a good sealing performance to prevent food and oil and water from spilling when the lunch box 1 is tilted or even shaken.

[0038] Thirdly, the design of the leakproof coating layer 21 and the buckle structure complement each other. The sealing effect of the buckle structure supplements the buckle of the lunch box body 2 and the lunch box cover 3 which are difficult to be taken care of by the oil-proof layer, so that the whole lunch box 1 forms a complete anti-oil seepage structure, which effectively solves the problem that ordinary disposable lunch boxes only prevent oil leakage from the box body but not from oil leakage from the buckle interface when the lunch box is tilted. The leakproof coating layer 21 arranged on the arc surface of the upper end of the spiral curling edge 22 fills the small gap inside the buckle structure when the buckle structure is buckled, so that the sealing effect is better. At the same time, the anti-oil seepage coating itself has certain lubricity and wear resistance, which effectively solves the problem that the buckle structure relies on the friction sliding buckle of the plastic paper 4, but the surface of the plastic paper matrix 41 is rough, which is not conducive to the sliding extrusion buckle of the buckle structure, so that the working process of the buckle structure is smoother, and the two complement each other.

[0039] Fourthly, the spiral curling edge 22 in the buckling structure is mainly composed of a paper matrix 41, the curling portion extends outward relative to the lunch box body 2, and a groove structure is provided at a position relative to the crescent-shaped slot 31. Since the curling portion extends outward, it is not easy for a user to touch the inner side of the spiral curling edge 22 when holding the outer surface of the lunch box 1. Since the paper matrix 41 itself has poor heat conduction efficiency, the heat-insulating coating layer 21 and the paper matrix 41 on its inner side cooperate with each other to prevent the user from being scalded by the heat of the food when holding it. The wear-resistant layer 42 on its outer side is also conducive to improving the durability of the outer surface of the lunch box 1 and the hand feeling of the user holding it. At the same time, the groove structure on the inner side of the spiral curling edge 22 is also conducive to fixing the position of the crescent-shaped slot 31 when buckling, so that it buckles more tightly.

[0040] Fifth: the lunch box body 2 is provided with a plurality of partitions 23 perpendicular to the bottom of the lunch box body 2. The partitions 23 divide the inside of the lunch box body 2 into a plurality of spaces of different sizes, which increases the position options for the lunch box 1 to accommodate food, realizes the separation of rice and dishes and the combination of the lunch box 1 preventing oil leakage, and improves the user experience. At the same time, the surface of the partition 23 is coated with a heat insulation layer 232, which is conducive to maintaining the temperature of different compartments, and is convenient for users to put dishes of different temperatures into different compartments;

[0041] Sixthly, the lunch box cover 3 is provided with a plurality of air holes 32, so that the hot gas pressure in the lunch box 1 is consistent with the external atmospheric pressure, which effectively solves the problem that the lunch box 1 bulges and affects the sealing because the hot dishes continuously heat the air in the lunch box 1.

[0042] In summary, the utility model solves various problems that occur during the use of disposable paper lunch boxes in the prior art by utilizing a solution of optimized structural design, and is a new and excellent oil-proof lunch box that uses plastic-free paper.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An oil-proof lunch box using plastic-substitute paper, comprising: A lunch box (1), characterized in that: the lunch box (1) comprises a lunch box body (2) and a lunch box cover (3), the lunch box (1) is made of plastic-substitute paper (4), the plastic-substitute paper (4) comprises a paper matrix (41), a wear-resistant layer (42) and a heat-insulating coating layer (43), the lunch box body (2) is provided with a wear-resistant layer (42), a paper matrix (41) and a heat-insulating coating layer (43) in sequence from the outside to the inside, the inner wall of the lunch box body (2) is provided with a leakproof coating layer (21), the leakproof coating layer (21) is provided on a side of the heat-insulating coating layer (43) away from the paper matrix (41), the lunch box cover (3) is provided with a wear-resistant layer (42), a paper matrix (41) and a heat-insulating coating layer (43) in sequence from top to bottom, and the lunch box body (2) and the lunch box cover (3) are movably connected by means of structural buckling.

2. The oil-proof lunch box according to claim 1, characterized in that: The top edge of the lunch box body (2) is provided with an outwardly turned spiral curling edge (22), the cross section of the spiral curling edge (22) is spiral-shaped, and the lunch box cover (3) is provided with a circle of crescent-shaped slots (31) around it, the positions of the spiral curling edge (22) and the crescent-shaped slots (31) correspond to each other, and the lunch box body (2) and the lunch box cover (3) are mutually buckled through the spiral curling edge (22) and the crescent-shaped slots (31).

3. The oil-proof lunch box according to claim 2, characterized in that: A leakproof coating layer (21) is provided at the top of the spiral curling edge (22); the leakproof coating layer (21) is provided between the crescent-shaped slot (31) and the spiral curling edge (22); the crescent-shaped slot (31), the leakproof coating layer (21) and the spiral curling edge (22) form a sealed oil-proof structure.

4. The oil-proof lunch box according to claim 1, characterized in that: A plurality of partitions (23) perpendicular to the bottom of the lunch box body (2) are arranged inside the lunch box body (2), and the partitions (23) divide the interior of the lunch box body (2) into a plurality of spaces of different sizes.

5. The oil-proof lunch box according to claim 4, characterized in that: The partition plate (23) is composed of a plate layer (231) and a heat insulation layer (232), and the heat insulation layer (232) is provided on the outer surface of the plate layer (231).

6. The oil-proof lunch box according to claim 1, characterized in that: The plastic-substitute paper (4) is tightly laminated from the outside to the inside by means of hot pressing in sequence including a wear-resistant layer (42), a paper matrix (41), and a heat-insulating coating layer (43).

7. The oil-proof lunch box according to claim 1, characterized in that: The lunch box cover (3) is provided with a plurality of air holes (32).

8. The oil-proof lunch box according to claim 1, characterized in that: A tongue plate (33) is provided at one corner of the lunch box cover (3).

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