Quick-release eco-friendly lunch boxes

Abstract

This invention provides a quick-release eco-friendly lunchbox, comprising a box body and a lid. The main body has a bottom surface, front, left, rear, and right sides, front-left, left-rear, rear-right, and right-front connecting portions, and an accommodating space. One side of the lid is pivotally connected to the corresponding side of the rear side, and front, left, and right wings extend outward sequentially from the front, left, and right edges, respectively. Both the front-left and right-front connecting portions are composed of a first rectangular piece extending outward along a diagonal, and a first, second, third, and fourth fan-shaped piece. Both the front-left and right-front connecting portions also have two openings spaced apart at the free ends of the pivot connections between the first rectangular piece and the second and fourth fan-shaped pieces, respectively. Furthermore, the lid has a T-shaped positioning groove corresponding to the T-shaped quick-release buckle, allowing the T-shaped quick-release buckle to pass through and be positioned, ensuring the lid fits securely against the main body.

Description

[Technical Field]

[0001] This invention relates to a paper container structure, and more particularly to a quick-release environmentally friendly lunch box that can quickly fix the lid. [Previous Technology]

[0002] With the increasing number of people eating out, most restaurants use disposable containers to hold food or items to make it more convenient for them. For example, paper lunch boxes include a box body and a lid. After the food or items are put into the box body, the lid is placed on top of the box body. Then, a rubber band is used to tighten the entire outer perimeter of the lunch box. Sometimes, if the first rubber band is not tight enough, a second one will be used to reinforce it. Only after the lunch box is tightened can the food or items inside the lunch box be prevented from leaking out.

[0003] In the busy packaging process, using rubber bands to tighten the lunch box is currently the fastest packaging method. However, using rubber bands still adds an extra step to the operation. Moreover, if the operation is not careful or is not done properly, the rubber band may easily pop off or fall off. Furthermore, rubber bands have a lifespan. As time goes by, they are easy to age and lose their elasticity, and may even break, affecting the packaging operation.

[0004] On the other hand, when consumers remove the rubber bands from the lunch boxes, they can easily discard or lose them, which not only creates garbage but also cannot be recycled together with paper lunch boxes, thus affecting the environment.

[0005] In view of this, how to provide a quick-release environmentally friendly lunch box that can solve the above problems has become the subject of improvement of this invention. [Summary of the Invention]

[0006] The purpose of this invention is to provide a quick-release environmentally friendly lunch box that can quickly fix the lid onto the box, is easy to operate, saves time and effort, and makes it more convenient for stores to package lunch boxes.

[0007] To solve the above problems and achieve the purpose of the present invention, the technical means of the present invention are as follows: a quick-release environmentally friendly lunch box, comprising a box body and a lid that can be folded and closed onto the box body, characterized in that: the body has a bottom surface, front, left, rear, and right sides extending upward sequentially from corresponding side edges of the bottom surface, front left, left rear, and right front joints disposed between the front, left, rear, and right sides, and an accommodating space defined by the bottom surface and the front, left, rear, and right sides; one side of the lid is pivotally connected to the corresponding side edge of the rear side, and a front, left, and right wing extends outward sequentially from the front, left, and right sides respectively; the front left joint and the right front joint are both formed by a first rectangular piece extending outward along a diagonal, and a first sector pivotally connected to one of the left side and the right side. The cover comprises a second fan-shaped piece, one edge of which is pivotally connected to the first rectangular piece and the other edge of which is pivotally connected to the other edge of the first fan-shaped piece; a third fan-shaped piece, one edge of which is pivotally connected to the front side; and a fourth fan-shaped piece, one edge of which is pivotally connected to the first rectangular piece and the other edge of which is pivotally connected to the other edge of the third fan-shaped piece. Both the front left joint and the right front joint are provided with two openings spaced apart at the free ends of the pivot lines between the first rectangular piece and the second and fourth fan-shaped pieces, respectively. These openings allow the first, second, third, and fourth fan-shaped pieces to be folded outwards to form a T-shaped quick-release buckle at the free end of the first rectangular piece. Furthermore, the cover body has a T-shaped positioning groove corresponding to the T-shaped quick-release buckle, allowing the T-shaped quick-release buckle to pass through and be positioned, ensuring the cover body fits securely against the main body.

[0008] More preferably, both the left rear joint and the rear right joint are composed of a second rectangular piece extending outward from one end along the diagonal, a fifth sector piece whose one edge is pivotally connected to one of the left side and the right side, a sixth sector piece whose one edge is pivotally connected to the second rectangular piece and whose other edge is pivotally connected to the other edge of the fifth sector piece, a seventh sector piece whose one edge is pivotally connected to the rear side, and an eighth sector piece whose one edge is pivotally connected to the second rectangular piece and whose other edge is pivotally connected to the other edge of the seventh sector piece.

[0009] More preferably, the first length of the first rectangular piece is greater than the second length of the second rectangular piece.

[0010] More preferably, the left rear joint and the rear right joint are both composed of a ninth sector piece whose one side edge is pivotally connected to one of the left side surface and the right side surface, and a tenth sector piece whose one side edge is pivotally connected to the rear side surface and whose other side edge is pivotally connected to the other side edge of the ninth sector piece.

[0011] More preferably, the accommodating space is further provided with at least one partition, which can divide the accommodating space into several placement blocks.

[0012] Compared with the prior art, the effects of the present invention are as follows:

[0013] In this invention, a fast and stable locking mechanism is applied. The lunch box design adopts a unique T-shaped quick buckle, which, together with the positioning groove, realizes a fast and firm connection between the lid and the body. This design does not require additional tools, ensures the safe isolation of the contents, and protects them from external forces. It greatly improves the convenience and efficiency of use, meets the needs of modern society for an efficient pace of life, and combines rapid packaging, resource saving, and structural durability. It brings a comprehensively optimized catering solution to the market and fully demonstrates its practical value and innovative spirit.

[0014] In this invention, the folding structure of the first sector piece, the second sector piece, the third sector piece and the fourth sector piece in conjunction with the first rectangular piece significantly enhances the strength of the T-shaped quick buckle. This not only meets the requirements of the quick buckle and allows it to be smoothly inserted into the positioning groove, but also prevents deformation during load-bearing or operation.

[0015] In this invention, by abandoning the traditional rubber band binding method, the invented lunch box not only simplifies the packaging process and reduces material waste, but also helps businesses effectively control costs, responding to the global call for resource conservation and environmental protection, and demonstrating the social responsibility of enterprises. [Simplified Explanation of the Diagram]

[0033] [Figure 1] is a three-dimensional schematic diagram of Embodiment 1 of the present invention.

[0034] [Figure 2] is a schematic diagram of the unfolded form of Embodiment 1 of the present invention.

[0035] [Figure 3] is a schematic diagram of the forming of the T-shaped quick buckle at the right front joint of Embodiment 1 of the present invention.

[0036] [Figure 4] is a three-dimensional schematic diagram of Embodiment 1 of the present invention.

[0037] 〔Figure 5〕is a schematic cross-sectional view of part A in Figure 4.

[0038] [Figure 6] is a three-dimensional schematic diagram of the spacer portion in Embodiment 1 of the present invention.

[0039] [Figure 7] is a three-dimensional schematic diagram of Embodiment 2 of the present invention.

[0040] [Figure 8] is a schematic diagram of the unfolded form of Embodiment 2 of the present invention.

Implementation Method

[0016] The following is a detailed description of the embodiments shown in the figures:

[0017] As shown in Figures 1 to 8, the figures reveal a quick-release environmentally friendly lunchbox of the present invention, which includes a box body 1 and a lid 2 that can be folded and closed onto the box body 1. The main body 1 has a bottom surface 11, and front, left, rear, and right side surfaces 12, 13, 14, and 15 are sequentially and upwardly extended from corresponding side edges of the bottom surface 11. Front-left, left-rear, rear-right, and right-front joining portions 16, 17, 18, and 19 are provided between the front, left, rear, and right side surfaces 12, 13, 14, and 15. And a receiving space 200 defined by the bottom surface 11 and the front, left, rear, and right side surfaces 12, 13, 14, and 15; one side of the cover 2 is pivotally connected to the corresponding side of the rear side surface 14, and a front, left, and right wing 21, 22, and 23 extend outward sequentially from the front, left, and right edges respectively; the front left joint 16 and the right front joint 19 are both formed by a first rectangular piece 10 extending outward from one end along a diagonal, with one edge pivotally connected to one of the left side surface 13 and the right side surface 15. The structure comprises a first sector-shaped piece 20, a second sector-shaped piece 30 whose one edge is pivotally connected to the first rectangular piece 10 and whose other edge is pivotally connected to the other edge of the first sector-shaped piece 20, a third sector-shaped piece 40 whose one edge is pivotally connected to the front side surface 12, and a fourth sector-shaped piece 50 whose one edge is pivotally connected to the first rectangular piece 10 and whose other edge is pivotally connected to the other edge of the third sector-shaped piece 40; and the front left joint 16 and the right front joint 19 are both provided with spaced openings between the first rectangular piece 10 and the first sector-shaped piece 20. The second sector piece 30 and the fourth sector piece 50 have two openings 3 at their pivot free ends; the openings 3 can be folded outwards relative to each other by the first sector piece 20, the second sector piece 30, the third sector piece 40 and the fourth sector piece 50 to form a T-shaped quick buckle 4 at the free end of the first rectangular piece 10; in addition, the cover 2 has a T-shaped positioning groove 5 corresponding to the T-shaped quick buckle 4, which allows the T-shaped quick buckle 4 to pass through and be positioned, so that the cover 2 is firmly attached to the body 1.

[0018] Through the cooperation between the main body 1 and the lid 2, the quick-release eco-friendly lunch box utilizes the T-shaped quick-release buckle 4 of the lid 2 to engage with the corresponding positioning groove 5, achieving a quick-release effect. After the user fills the contents, they can directly close the lid 2. Utilizing the strength of the T-shaped quick-release buckle 4, it quickly slides into and passes through the T-shaped positioning groove 5. When the lid 2 tries to be opened due to the restoring elasticity or an unknown external force, the T-shaped quick-release buckle 4 can hold the lid 2 in place, ensuring the safety and hygiene of the contents. It is also less likely for the contents to spill out due to shaking. It can directly replace existing containers, has low production difficulty, is conducive to application, and increases the willingness of merchants to use it.

[0019] Secondly, through the application of the first fan-shaped piece 20, the second fan-shaped piece 30, the third fan-shaped piece 40, and the fourth fan-shaped piece 50, after being folded outwards relative to each other, the first fan-shaped piece 20, the second fan-shaped piece 30, the third fan-shaped piece 40, and the fourth fan-shaped piece 50 can be stacked together and attached to the outer side of the first rectangular piece 10. With the help of the two openings 3, a T-shaped quick buckle 4 is formed at the free end of the first rectangular piece 10. The corresponding points at the free ends of the first fan-shaped piece 20, the second fan-shaped piece 30, the third fan-shaped piece 40, and the fourth fan-shaped piece 50 can simultaneously strengthen the front left and right corners of the body 1 and the T-shaped quick buckle 4, making them less prone to deformation.

[0020] Furthermore, the present invention is time-saving and labor-saving in use, eliminating the need for rubber bands and the purchase of rubber bands, allowing businesses to effectively control costs and save resources, without affecting storage and transportation. When using the quick-release eco-friendly lunch box of the present invention for packaging, there is no need to look for rubber bands, making it simpler to use.

[0021] In addition, when the cover 2 covers the main body 1, referring to Figure 5, the T-shaped quick buckle 4 can be inserted into the positioning slot 5 very conveniently and accurately, positioning is faster, and it can also have a certain anti-spring-opening effect. It is simpler to use, reduces manpower consumption, and is very easy for consumers to use, which is conducive to the promotion and application.

[0022] Secondly, the application of the front wing 21, the left wing 22 and the right wing 23 can strengthen the edge of the lid 2. When the user operates, the higher strength can prevent the lid 2 from being deformed due to being unable to withstand the pressure or the pressure of another quick-release environmentally friendly lunch box, which would affect the support of the lid 2.

[0023] As shown in Figure 2, both the left rear joint 17 and the rear right joint 18 are composed of a second rectangular piece 60 extending outward from one end along the diagonal, a fifth fan-shaped piece 70 whose one edge is pivotally connected to one of the left side surface 13 and the right side surface 15, a sixth fan-shaped piece 80 whose one edge is pivotally connected to the second rectangular piece 60 and whose other edge is pivotally connected to the other edge of the fifth fan-shaped piece 70, a seventh fan-shaped piece 90 whose one edge is pivotally connected to the rear side surface 14, and an eighth fan-shaped piece 100 whose one edge is pivotally connected to the second rectangular piece 60 and whose other edge is pivotally connected to the other edge of the seventh fan-shaped piece 90.

[0024] In this way, through the cooperation of the second rectangular piece 60, the fifth sector piece 70, the sixth sector piece 80, the seventh sector piece 90 and the eighth sector piece 100, the left rear joint 17 and the rear right joint 18 can be set at an angle like the front left joint 16 and the right front joint 19, so that the body 1 forms an octagonal box shape, which is beneficial to production, can reduce the manufacturing process and reduce costs. At the same time, it strengthens the corners of the body 1, so as to be different from the traditional octagonal box and can effectively cooperate with the cover 2.

[0025] As shown in Figure 2, the first length H1 of the first rectangular piece 10 is greater than the second length H2 of the second rectangular piece 60.

[0026] The first length H1 of the first rectangular piece 10 is set to be larger than the second length H2 of the second rectangular piece 60, which is conducive to the formation of the T-shaped quick buckle 4, so that the T-shaped quick buckle 4 can protrude from the edge of the box body 1 and be smoothly inserted into the positioning groove 5.

[0027] As shown in Figure 8, the left rear joint 17 and the rear right joint 18 are both composed of a ninth sector piece 110 whose one side edge is pivotally connected to one of the left side surface 13 and the right side surface 15, and a tenth sector piece 120 whose one side edge is pivotally connected to the rear side surface 14 and whose other side is pivotally connected to the other side edge of the ninth sector piece 110.

[0028] In this way, the left and right rear corners of the box 1 can be right angles, which is different from the first embodiment of the present invention. It is not a traditional octagonal box, and can give consumers more choices.

[0029] As shown in Figure 6, the accommodating space 10 is further provided with at least one partition 6, which can divide the accommodating space 200 into several placement blocks 61.

[0030] The application of the partition 6 allows the accommodating space 200 to be divided into multiple placement blocks 61, so that the contents can be placed separately to avoid cross-contamination of flavors, making it convenient for businesses to serve and for consumers to eat.

[0031] The structure, features and effects of the present invention have been described in detail above with reference to the embodiments shown in the figures; however, the above description is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the figures. Therefore, any modifying changes that are consistent with the intent of the present invention should be included within the scope of the present invention patent as long as they are within the range of equivalent effects.

Claims

1. A quick-release eco-friendly lunchbox, comprising a box body (1) and a lid (2) that can be folded and closed onto the box body (1), characterized in that: The main body (1) has a bottom surface (11), front, left, rear, and right side surfaces (12, 13, 14, 15) extending upward sequentially from the corresponding side edges of the bottom surface (11), front left, left rear, rear right, and right front joint portions (16, 17, 18, 19) provided between the front, left, rear, and right side surfaces (12, 13, 14, 15), and an accommodating space (200) defined by the cooperation of the bottom surface (11) and the front, left, rear, and right side surfaces (12, 13, 14, 15). One side of the cover (2) is pivotally connected to the corresponding side of the rear side (14), and a front, left, and right wing (21, 22, 23) extends outward from the front, left, and right edges respectively. The front left joint (16) and the right front joint (19) are both composed of a first rectangular piece (10) extending outward from one end along the diagonal, a first fan-shaped piece (20) whose one edge is pivotally connected to one of the left side surface (13) and the right side surface (15), a second fan-shaped piece (30) whose one edge is pivotally connected to the first rectangular piece (10) and whose other edge is pivotally connected to the other edge of the first fan-shaped piece (20), a third fan-shaped piece (40) whose one edge is pivotally connected to the front side surface (12), and a fourth fan-shaped piece (50) whose one edge is pivotally connected to the first rectangular piece (10) and whose other edge is pivotally connected to the other edge of the third fan-shaped piece (40). Both the front left joint (16) and the right front joint (19) are provided with two openings (3) spaced apart at the free ends of the pivot lines of the first rectangular piece (10) and the second sector piece (30) and the fourth sector piece (50), respectively. The opening (3) can be folded outwards and folded into a folded shape after the first fan-shaped piece (20), the second fan-shaped piece (30), the third fan-shaped piece (40), and the fourth fan-shaped piece (50) are folded in half, so that a T-shaped quick buckle (4) is formed at the free end of the first rectangular piece (10); Furthermore, the cover (2) has a T-shaped positioning groove (5) corresponding to the T-shaped quick buckle (4), which allows the T-shaped quick buckle (4) to pass through and be positioned, so that the cover (2) can be firmly attached to the body (1).

2. The quick-release eco-friendly lunchbox as described in claim 1, wherein: The left rear joint (17) and the rear right joint (18) are both composed of a second rectangular piece (60) extending outward from one end along the diagonal, a fifth sector piece (70) whose one edge is pivotally connected to one of the left side surface (13) and the right side surface (15), a sixth sector piece (80) whose one edge is pivotally connected to the second rectangular piece (60) and whose other edge is pivotally connected to the other edge of the fifth sector piece (70), a seventh sector piece (90) whose one edge is pivotally connected to the rear side surface (14), and an eighth sector piece (100) whose one edge is pivotally connected to the second rectangular piece (60) and whose other edge is pivotally connected to the other edge of the seventh sector piece (90).

3. The quick-release eco-friendly lunchbox as described in claim 2, wherein: The first length (H1) of the first rectangular piece (10) is greater than the second length (H2) of the second rectangular piece (60).

4. The quick-release eco-friendly lunchbox as described in claim 1, wherein: The left rear joint (17) and the rear right joint (18) are both composed of a ninth sector piece (110) whose side edge is pivotally connected to one of the left side surface (13) and the right side surface (15), and a tenth sector piece (120) whose side edge is pivotally connected to the rear side surface (14) and whose other side edge is pivotally connected to the other side edge of the ninth sector piece (110).

5. The quick-release eco-friendly lunchbox as described in any one of claims 1 to 4, wherein: The accommodating space (10) is further provided with at least one partition (6), which can divide the accommodating space (200) into several placement blocks (61).

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