Lunch box with leakage-proof structure

Abstract

The utility model relates to the technical field of leakproof structures of lunch boxes, in particular to a lunch box with a leakproof structure, which comprises a box body, a box cover, two groups of sealing chutes, a sealing sliding edge, an edge flange, a sealing baffle plate, a through groove, a sealing clamping groove, a separating component, a sliding component, a resetting component and a lifting component, two sets of sealing sliding edges are arranged on the inner wall of the box cover and slidably connected with the sealing sliding grooves, multiple sets of edge opening flanges are arranged above the box body, a through groove is formed in one end of the box cover, a sealing baffle is arranged in the through groove, a sealing clamping groove is formed in one end of the upper portion of the box body, and the sealing baffle is connected with the sealing clamping groove in a clamped mode. When the leakproof structure of the lunch box is used, the leakproof structure of the lunch box achieves tight sealing of the connecting positions of the periphery of the lunch box through sliding closing of the box cover and the box body and clamping of the sealing baffle and the sealing clamping groove, and the situation of soup leakage is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of leak-proof structure technology for lunch boxes, and in particular to a lunch box with a leak-proof structure. Background Technology

[0002] Lunch boxes, also known as food containers, are boxes specifically designed to hold food. They are generally made of metal and plastic. With the booming development of the catering industry and the fast pace of people's lives, convenient and hygienic lunch boxes have become an important factor in ensuring food safety and improving the dining experience.

[0003] In practical use, the existing leak-proof design of lunch boxes mostly relies on a single sealing structure, such as a simple lid and body snap-fit ​​method or screw connection. However, during transportation, the lid is easily loosened due to vibration, causing soup to spill out. This not only affects the taste and hygiene of the food, but may also pollute the packaging materials or the surrounding environment. Improvements are urgently needed to effectively prevent soup leakage and improve the tightness and sealing of lunch boxes.

[0004] Therefore, to address the aforementioned issues of ineffective prevention of soup leakage and improved sealing of lunch boxes, a lunch box with a leak-proof structure can be designed. During use, the leak-proof structure of this invention achieves a multi-layered leak-proof mechanism through the sliding closure of the lid and body and the engagement of the sealing baffle and the sealing groove. This mechanism, via mechanical linkage, realizes a tight seal at the joints around the lunch box, effectively preventing soup leakage and greatly improving the sealing performance of the lunch box. Utility Model Content

[0005] To address the issue of leak-proof lunchboxes, current leak-proof designs often rely on a single sealing structure, such as a simple lid-body snap-fit ​​or screw connection. However, during transportation, vibrations can easily cause the lid to loosen, leading to spillage. This not only affects the taste and hygiene of the food but may also contaminate the packaging or the surrounding environment. Improvements are urgently needed to effectively prevent leakage and enhance the tightness and seal of the lunchbox.

[0006] The technical solution of this utility model is as follows: a lunch box with a leak-proof structure, comprising a box body, a lid, a sealing groove, a sealing edge, an edge retaining rim, a sealing baffle, a through groove, a sealing slot, a separator component, a sliding component, a reset component, and a lifting component. The box body has a separator component inside. Two sets of sealing grooves are provided on the upper side wall of the box body. A lid is provided on the upper part of the box body. Two sets of sealing edges are provided on the inner wall of the lid, and the sealing edges are slidably connected to the sealing grooves. Multiple sets of edge retaining rims are provided on the upper part of the box body. Two sets of sliding components are provided on both sides of one end of the lid. A reset component is provided inside the sliding component. A through groove is provided at one end of the lid, and a sealing baffle is provided inside the through groove. A sealing slot is provided at the upper end of the box body, and the sealing baffle is engaged with the sealing slot. A lifting component is provided above the sealing baffle.

[0007] Preferably, during use, the leak-proof structure of the lunchbox allows for the rational division of the internal space through the partition components, enabling the separate storage of different foods. Next, the sealing edge on the inner wall of the lid is aligned with the sealing groove on the upper side wall of the box. Pulling the lifting component upwards will cause the sealing baffle to rise, simultaneously causing the sliding components on both sides to slide. Once the lid and box are aligned, pushing the lid towards the box closes it, achieving a three-sided tight seal between the lid and box through the sliding connection of the sealing groove and sealing edge. During this process, the three-sided sliding cooperation of the sealing edge and sealing groove forms the first sealing barrier, preventing liquid from leaking out of the box. Leakage occurs from the left, right, and rear sides of the lid. When the lid is fully closed, the lifting component is released, and the reset component, due to its elastic retraction, drives the sliding component to reset. This, in turn, causes the sealing baffle to move down along the through groove, embedding it into the sealing groove at the front end of the box body, completing a tight snap-fit ​​seal on the fourth side. Thus, this structure achieves a multi-layered leak-proof mechanism of "three-sided sliding seal and one-sided automatic snap-fit ​​seal" through mechanical linkage. In summary, the leak-proof structure of this utility model of a lunchbox achieves a tight seal at the joints around the lunchbox through the sliding closure of the lid and the box body, as well as the snap-fit ​​of the sealing baffle and the sealing groove. This effectively prevents leakage of soup and greatly improves the sealing performance of the lunchbox, ensuring the hygiene and safety of food.

[0008] Preferably, the partition component includes a side wall insertion groove, a side wall insertion block, and a cross partition plate. The inside of the box is provided with a cross partition plate, and multiple sets of side wall insertion blocks are provided on the side wall of the cross partition plate. Multiple sets of side wall insertion grooves are provided on the inner walls around the box.

[0009] Preferably, the partition assembly also includes a cross-shaped insertion groove, the side wall insertion block is slidably connected to the side wall insertion groove, the inner bottom wall of the box is provided with a cross-shaped insertion groove, and the bottom end of the cross partition plate is engaged with the inside of the cross-shaped insertion groove.

[0010] Preferably, the lifting assembly includes a connecting bracket, a mounting block, and mounting holes. The connecting bracket is located above the sealing baffle, and two sets of mounting blocks are located above the connecting bracket. The mounting blocks have mounting holes inside.

[0011] Preferably, the lifting assembly also includes a spiral spring and a handle. The handle is provided between the two sets of mounting blocks, and two sets of spiral springs are provided at both ends of the handle. One end of the spiral spring is fixedly connected to one end of the handle, and the other end of the spiral spring is fixedly connected to the inner wall of the mounting hole.

[0012] Preferably, the sliding assembly includes a slide rail, a slide rod, and a slider. Two sets of slide rails are provided on both sides of one end of the box cover. A slide rod is provided inside the slide rail, and a slider is provided on the side wall of the slide rod. The slider is slidably connected to the slide rod, and both ends of the connecting bracket are fixedly connected to the inner walls of the sliders on both sides.

[0013] Preferably, the reset assembly includes a reset spring, with the reset spring disposed inside the slide rail. One end of the reset spring is fixedly connected to the bottom wall of the slider, and the other end of the reset spring is fixedly connected to the inner wall of the slide rail.

[0014] The beneficial effects of this utility model are:

[0015] When the leak-proof structure of the lunchbox is in use, the internal space of the box can be rationally divided through the partition components, allowing for the separate storage of different foods. Next, align the sealing sliding edge on the inner wall of the lid with the sealing groove on the upper side wall of the box. At this point, pulling the lifting component upward will cause the sealing baffle to rise together, simultaneously causing the sliding components on both sides to slide. Once the lid and box are aligned, push the lid towards the box to close it, so that the lid and box are tightly sealed on three sides through the sliding connection of the sealing groove and sealing sliding edge. In this process, the three-sided sliding cooperation of the sealing sliding edge and sealing groove forms the first sealing barrier, preventing soup from leaking out of the box. Leakage occurs on the left, right, and rear sides of the lid. When the lid is fully closed, the lifting component is released, and the reset component, due to its elastic retraction, drives the sliding component to reset, thereby causing the sealing baffle to move down along the through groove and embed into the sealing groove at the front end of the box body, completing the tight snap-fit ​​seal on the fourth side. Thus, this structure achieves a multiple leak-proof mechanism of "three-sided sliding seal and one-sided automatic snap-fit ​​seal" through mechanical linkage. In summary, the leak-proof structure of this utility model of the lunch box achieves a tight seal at the connection points around the lunch box through the sliding closure of the lid and the box body and the snap-fit ​​of the sealing baffle and the sealing groove, effectively preventing the leakage of soup and greatly improving the sealing performance of the lunch box, ensuring the hygiene and safety of food. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of a lunch box with a leak-proof structure according to this utility model.

[0017] Figure 2 The diagram shown is a partial three-dimensional structural schematic of a leak-proof lunchbox according to the present invention.

[0018] Figure 3 The diagram shown is a partial three-dimensional structural schematic of a leak-proof lunchbox according to the present invention.

[0019] Figure 4 The diagram shown is a third-part three-dimensional structural schematic of a leak-proof lunchbox according to this utility model.

[0020] Figure 5 The diagram shown is a partial three-dimensional structural diagram of a leak-proof lunch box according to the present invention.

[0021] Figure 6 The diagram shown is a partial three-dimensional structural schematic of a leak-proof lunch box according to the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Box lid; 3. Sealing groove; 4. Sealing edge; 5. Edge retainer; 6. Sealing baffle; 7. Through groove; 8. Sealing slot; 101. Side wall insertion groove; 102. Side wall insertion block; 103. Cross partition plate; 104. Cross insertion groove; 201. Connecting bracket; 202. Mounting block; 203. Mounting hole; 204. Scroll spring; 205. Handle; 301. Slide rail; 302. Slide rod; 303. Slider; 401. Return spring. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figure 1 and Figure 4 This utility model provides an embodiment of a leak-proof lunch box, comprising a box body 1, a lid 2, a sealing groove 3, a sealing edge 4, an edge retaining 5, a sealing baffle 6, a through groove 7, a sealing slot 8, a separator component, a sliding component, a reset component, and a lifting component. The box body 1 has a separator component inside. Two sets of sealing grooves 3 are provided on the upper side wall of the box body 1. The lid 2 is located on the upper part of the box body 1. Two sets of sealing edges 4 are provided on the inner wall of the lid 2, and the sealing edges 4 are slidably connected to the sealing grooves 3. Multiple sets of edge retaining 5 are provided on the upper part of the box body 1. Two sets of sliding components are provided on both sides of one end of the lid 2. A reset component is provided inside the sliding component. A through groove 7 is provided at one end of the lid 2, and a sealing baffle 6 is provided inside the through groove 7. A sealing slot 8 is provided at the upper end of the box body 1, and the sealing baffle 6 is engaged with the sealing slot 8. A lifting component is located above the sealing baffle 6.

[0025] Please see Figure 2 and Figure 3 The partition assembly includes a side wall insertion groove 101, a side wall insertion block 102, and a cross partition plate 103. A cross partition plate 103 is provided inside the box body 1. Multiple sets of side wall insertion blocks 102 are provided on the side walls of the cross partition plate 103. Multiple sets of side wall insertion grooves 101 are provided on the inner walls of the box body 1. First, the cross partition plate 103 is aligned with the side wall insertion blocks 102 on its four sides and inserted into the side wall insertion grooves 101 on the inner walls of the box body 1. Then, the cross partition plate 103 is pressed down. The partition assembly also includes a cross insertion groove 104. The side wall insertion blocks 102 are slidably connected to the side wall insertion groove 101. A cross insertion groove 104 is provided on the bottom inner wall of the box body 1. The bottom end of the cross partition plate 103 is connected to the cross insertion groove 104. The internal snap-fit ​​connection of 4 is followed by pressing down on the cross divider 103 so that its bottom end engages with the cross insertion groove 104 opened in the bottom wall of the box body 1, thereby firmly installing the cross divider 103 in the box body 1. This design not only facilitates installation, but also rationally divides the internal space of the box body 1 through the cross divider 103, realizing the separate storage of different foods and avoiding cross-contamination of food flavors. The lifting assembly includes a connecting bracket 201, a mounting block 202 and a mounting hole 203. The connecting bracket 201 is provided above the sealing baffle 6, and two sets of mounting blocks 202 are provided above the connecting bracket 201. The mounting block 202 has a mounting hole 203 inside. When the connecting bracket 201 rises, it can drive the sealing baffle 6 to rise together.

[0026] Please see Figure 5 and Figure 6The lifting assembly also includes a spiral spring 204 and a handle 205. A handle 205 is positioned between the two sets of mounting blocks 202. Two spiral springs 204 are installed at both ends of the handle 205. One end of each spiral spring 204 is fixedly connected to one end of the handle 205, and the other end is fixedly connected to the inner wall of the mounting hole 203. The spiral springs 204 assist the handle 205 in returning to its original position, reducing manual intervention. The sliding assembly includes a slide rail 301, a slide rod 302, and a slider 303. Two sets of slide rails 301 are installed on both sides of one end of the cover 2. A slide rod 302 is installed inside the slide rail 301, and a slider 303 is installed on the side wall of the slide rod 302. The slider 303 is connected to the slide rod 302. 02 Sliding connection, both ends of the connecting bracket 201 are fixedly connected to the inner walls of the two side sliders 303. During the upward process, the connecting bracket 201 will push the two side sliders 303 to slide on the slide rod 302. The reset component includes a reset spring 401. The slide rail 301 is provided with a reset spring 401 inside. One end of the reset spring 401 is fixedly connected to the bottom wall of the slider 303, and the other end of the reset spring 401 is fixedly connected to the inner wall of the slide rail 301. The reset spring 401 causes the slider 303 to reset due to elastic recoil. Then, the connecting bracket 201 drives the sealing baffle 6 to move down along the through groove 7, so that it is embedded in the sealing slot 8 at the front end of the box body 1, and completes the tight snap-fit ​​sealing of the fourth side.

[0027] When using the leak-proof structure of the lunchbox, firstly, align and insert the cross-shaped divider 103 with the side wall insertion slots 101 on the inner walls of the box body 1 via the side wall insertion blocks 102 on its four sides. Then, press down on the cross-shaped divider 103 so that its bottom end engages with the cross insertion slot 104 on the bottom wall inside the box body 1, thus securely installing the cross-shaped divider 103 inside the box body 1. This design not only facilitates installation but also rationally divides the internal space of the box body 1 through the cross-shaped divider 103, achieving separate storage of different foods and preventing food odors from mixing.

[0028] Next, align the sealing sliding edge 4 on the inner wall of the lid 2 with the sealing sliding groove 3 on the upper side wall of the body 1. Then, by pulling up the handle 205, the connecting bracket 201 and the sealing baffle 6 connected to it rise together. During the rise, the connecting bracket 201 pushes the sliders 303 on both sides to slide on the sliding rod 302, simultaneously stretching the return springs 401 on both sides. When the lid 2 is aligned with the body 1, push the lid 2 to slide towards the body 1 to close, so that the lid 2 and the body 1 achieve a three-sided tight seal through the sliding connection of the sealing groove 3 and the sealing sliding edge 4. During this process, the three-sided sliding cooperation of the sealing sliding edge 4 and the sealing groove 3 forms the first sealing barrier, preventing soup from seeping out from the left, right, and rear sides of the body 1 and the lid 2.

[0029] Once the lid 2 is fully closed, the handle 205 is released. The return spring 401, due to its elastic recoil, causes the slider 303 to return to its original position. This, in turn, drives the sealing baffle 6 to move down along the through groove 7 via the connecting bracket 201, so that it is embedded in the sealing groove 8 at the front end of the box body 1, completing the tight snap-fit ​​seal on the fourth side.

[0030] Thus, the lid 2 and the box body 1 are sealed by sliding grooves and sliding edges, and automatically engage with the sealing baffle 6 to form a double leak-proof structure. Combined with the snap-fit ​​fixing of the bottom end of the cross partition plate 103 and the cross insertion groove 104, liquid leakage from the partition gaps is further prevented.

[0031] Throughout the closure process, the edge of the sealing panel 5 covers the edge of the box body 1, enhancing the pressure uniformity of the sealing surface. The guiding design of the slide rail 301 and slide rod 302 ensures the precise reset of the sealing baffle 6, while the spiral spring 204 assists the handle 205 in returning to its original position, reducing manual intervention. This structure achieves a multi-layered leak-proof mechanism of "three-sided sliding seal and one-sided automatic locking seal" through mechanical linkage, striking a balance between ease of opening and closing and sealing reliability. It is especially suitable for the transportation and storage of soup-type foods.

[0032] In summary, the leak-proof structure of this utility model achieves a tight seal at the joints around the lunch box through the installation of the cross-shaped partition plate 103, the sliding closure of the lid 2 and the box body 1, and the engagement of the sealing baffle 6 and the sealing groove 8. This effectively prevents the leakage of soup and greatly improves the sealing performance of the lunch box, ensuring the hygiene and safety of food.

[0033] Through the above steps, during use, the leak-proof structure of the lunchbox allows for the rational division of the internal space of the box 1 using the partition components, enabling the separate storage of different foods. Next, align the sealing sliding edge 4 on the inner wall of the lid 2 with the sealing groove 3 on the upper side wall of the box 1. At this point, pulling the lifting component upwards will cause the sealing baffle 6 to rise together, simultaneously causing the sliding components on both sides to slide. Once the lid 2 is aligned with the box 1, push the lid 2 towards the box 1 to close it, allowing the lid 2 and the box 1 to achieve a three-sided tight seal through the sliding connection of the sealing groove 3 and the sealing sliding edge 4. During this process, the three-sided sliding cooperation of the sealing sliding edge 4 and the sealing groove 3 forms the first sealing barrier, preventing soup from leaking out. Juice leaks from the left, right, and rear sides of the box body 1 and the lid 2. When the lid 2 is fully closed, the lifting component is released, and the reset component, due to its elastic retraction, drives the sliding component to reset, thereby causing the sealing baffle 6 to move down along the through groove 7 and embed itself into the sealing groove 8 at the front end of the box body 1, completing the tight snap-fit ​​seal on the fourth side. Thus, this structure achieves a multi-layered leak-proof mechanism of "three-sided sliding seal and one-sided automatic snap-fit ​​seal" through mechanical linkage. In summary, the leak-proof structure of this utility model of the lunch box achieves a tight seal at the connection points around the lunch box through the sliding closure of the lid 2 and the box body 1 and the snap-fit ​​of the sealing baffle 6 and the sealing groove 8, effectively preventing the leakage of soup and greatly improving the sealing performance of the lunch box, ensuring the hygiene and safety of food.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A lunch box with a leak-proof structure, comprising a box body (1), characterized in that: It also includes a box cover (2), a sealing groove (3), a sealing edge (4), a flange (5), a sealing baffle (6), a through groove (7), a sealing slot (8), a partition assembly, a sliding assembly, a reset assembly, and a lifting assembly. The box body (1) is provided with a partition assembly inside. Two sets of sealing grooves (3) are provided on the upper side wall of the box body (1). The box cover (2) is provided on the upper part of the box body (1). Two sets of sealing edges (4) are provided on the inner wall of the box cover (2). The sealing edges (4) and the sealing grooves (3) are connected to the inner wall of the box body (1). The sealing groove (3) is slidably connected. Multiple sets of edge guards (5) are provided on the top of the box body (1). Two sets of sliding components are provided on both sides of one end of the box cover (2). A reset component is provided inside the sliding component. A through groove (7) is opened at one end of the box cover (2). A sealing baffle (6) is provided inside the through groove (7). A sealing slot (8) is opened at the top end of the box body (1). The sealing baffle (6) is engaged with the sealing slot (8). A lifting component is provided above the sealing baffle (6).

2. A lunch box with a leak-proof structure according to claim 1, characterized in that: The partition assembly includes a side wall insertion groove (101), a side wall insertion block (102), and a cross partition plate (103). The box body (1) is provided with a cross partition plate (103). Multiple sets of side wall insertion blocks (102) are provided on the side wall of the cross partition plate (103). Multiple sets of side wall insertion grooves (101) are opened on the inner walls of the box body (1).

3. A lunch box with a leak-proof structure according to claim 2, characterized in that: The partition assembly also includes a cross-shaped insertion slot (104), a side wall insertion block (102) that is slidably connected to the side wall insertion slot (101), a cross-shaped insertion slot (104) is provided on the inner bottom wall of the box body (1), and the bottom end of the cross partition plate (103) is engaged with the inside of the cross-shaped insertion slot (104).

4. A lunch box with a leak-proof structure according to claim 2, characterized in that: The lifting assembly includes a connecting bracket (201), a mounting block (202) and a mounting hole (203). The connecting bracket (201) is provided above the sealing baffle (6), and two sets of mounting blocks (202) are provided above the connecting bracket (201). The mounting block (202) has a mounting hole (203) inside.

5. A lunch box with a leak-proof structure according to claim 4, characterized in that: The lifting assembly also includes a spiral spring (204) and a handle (205). The handle (205) is provided between the two sets of mounting blocks (202). Two sets of spiral springs (204) are provided at both ends of the handle (205). One end of the spiral spring (204) is fixedly connected to one end of the handle (205), and the other end of the spiral spring (204) is fixedly connected to the inner wall of the mounting hole (203).

6. A lunch box with a leak-proof structure according to claim 4, characterized in that: The sliding assembly includes a slide rail (301), a slide rod (302), and a slider (303). Two sets of slide rails (301) are provided on both sides of one end of the cover (2). A slide rod (302) is provided inside the slide rail (301). A slider (303) is provided on the side wall of the slide rod (302). The slider (303) is slidably connected to the slide rod (302). Both ends of the connecting bracket (201) are fixedly connected to the inner walls of the sliders (303) on both sides.

7. A lunch box with a leak-proof structure according to claim 6, characterized in that: The reset assembly includes a reset spring (401). The slide rail (301) is equipped with a reset spring (401). One end of the reset spring (401) is fixedly connected to the bottom wall of the slider (303), and the other end of the reset spring (401) is fixedly connected to the inner wall of the slide rail (301).

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