High-sealing lunch box

Abstract

The utility model relates to the technical field of lunch boxes, in particular to a high-sealing lunch box which comprises a box body and a box cover, the box cover is arranged on the box body to seal the box body, the box cover is of a boss-shaped structure and comprises a protruding part and a flat part, the inner wall of the protruding part is matched with the outer wall of the box body, and the flat part is arranged on the box body. An inner sealing ring and an outer sealing ring are arranged at the bottom of the protruding part from inside to outside in the radial direction, a plurality of clamping blocks are arranged at the bottom of the flat part, a fixing block is arranged on the box body, an inner groove and an outer groove which are matched with the inner sealing ring and the outer sealing ring respectively are formed in the box body, and an isolation plate is arranged between the box body and the box cover. The isolation plate is arranged between the box cover and the box body, the inner sealing strip and the outer sealing strip are arranged at the bottom of the box cover, and the inner groove and the outer groove are formed in the top of the box body, so that triple sealing isolation is formed, and soup is prevented from spilling and leaking.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of lunch boxes, in particular to a high-sealing lunch box. Background Art

[0002] Lunch boxes are used to hold food. For cost control, takeaways generally use plastic or pulp lunch boxes that are relatively cheap. Pulp lunch boxes can automatically degrade and return to carbon dioxide and water, returning to nature. They have the characteristics of saving resources and protecting the environment, and are widely favored. Existing pulp lunch boxes generally seal the box body by buckling the box cover, but the sealing performance is poor. During the process of carrying and using, the lunch box will inevitably tilt, and the soup will flow out along the gap between the box cover and the box body and flow out of the box body, thus affecting the customer experience. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of the utility model is to provide a highly sealed lunch box, which forms a triple sealing barrier by arranging an isolation plate between the box cover and the box body, arranging an inner sealing strip and an outer sealing strip at the bottom of the box cover, and arranging an inner groove and an outer groove at the top of the box body to prevent soup from leaking.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a box body and a box cover, the box cover is arranged on the box body to seal the box body, the box cover is a boss-shaped structure, the box cover includes a protrusion and a flat portion, the inner wall of the protrusion fits with the outer wall of the box body, the bottom of the protrusion is radially provided with an inner sealing ring and an outer sealing ring from the inside to the outside, the bottom of the flat portion is provided with a plurality of clamping blocks, the box body is provided with a fixing block, the box body is formed with an inner groove and an outer groove respectively fitting with the inner sealing ring and the outer sealing ring, and an isolation plate is provided between the box body and the box cover.

[0005] Preferably, the contour of the outer sealing ring is the same as the circumferential contour of the protrusion, the shape of the inner sealing ring is the same as the outer sealing ring, and the size of the inner sealing ring is smaller than the outer sealing ring. The double seal is formed by the inner sealing ring and the outer sealing ring of the same shape but different size to improve the sealing performance.

[0006] Furthermore, a fixing frame is arranged on the inner wall of the box body, the contour of the fixing frame is the same as the contour of the inner wall of the box body, and the fixing frame is located at the bottom of the isolation plate to support the isolation plate.

[0007] Furthermore, the isolation plate is a pulp board, and the thickness of the isolation plate is the same as the distance from the top of the fixing frame to the top of the box body. By setting the thickness of the isolation plate, the isolation plate is tightened and fixed by the box cover and the fixing frame after the box cover is pressed down.

[0008] Preferably, the number of the clamping blocks is four, and the four clamping blocks are respectively located below the four side positions of the flattening portion, and the four sides of the box body are fixed by the four clamping blocks.

[0009] Furthermore, the bottom of any one of the clamping blocks protrudes inward to form a right-angled triangle protrusion, and the fixing block is located below the clamping block and corresponds one-to-one with the same number of clamping blocks. The hypotenuse of the triangle makes the clamping block gradually bend with the pressing distance when it is pressed down, and automatically rebounds to be fixed after the fixing block slides to the top of the triangle.

[0010] Furthermore, any one of the clamping blocks is made of PVC material.

[0011] Preferably, the box body is made of paper pulp.

[0012] Preferably, the inner sealing ring and the outer sealing ring are made of the same material, which is a sealing material that can come into contact with food, specifically nitrile rubber.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] By arranging an isolation plate on the fixed frame, the protrusion of the box cover is pressed down and the protrusion and the fixed frame are tightened to fix the isolation plate, so as to perform the first sealing on the inside of the box body. By arranging an inner sealing strip and an outer sealing strip along the circumferential contour at the bottom of the protrusion of the box cover, and arranging an inner groove and an outer groove matching therewith at the top of the box body, the second and third sealing barriers are formed, so as to improve the sealing performance of the box body and prevent soup from leaking. A clamping block is arranged at the bottom of the flat part of the box cover, and the clamping block fits with the fixed block of the side wall of the box body to clamp and fix the box cover and the box body.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limitations of the present invention.

[0017] In the drawings of the specification:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0020] Figure 3 It is an enlarged view of the structure at A of the utility model;

[0021] Figure 4This is a schematic diagram of the bottom structure of the box cover of the utility model;

[0022] Figure 5 It is an enlarged view of the structure at B of the utility model;

[0023] Reference numerals:

[0024] 1. Box body; 11. Fixing block; 12. Outer groove; 13. Inner groove; 2. Box cover; 21. Protrusion; 22. Flat part; 23. Snap-in block; 24. Inner sealing ring; 25. Outer sealing ring; 3. Isolation plate; 4. Fixing frame. DETAILED DESCRIPTION Example 1

[0025] like Figures 1 to 5 As shown, a highly sealed lunch box comprises a box body 1 and a box cover 2, wherein the box body 1 is made of pulp material, which is light and low in cost, and the box cover 2 is arranged on the box body 1 to seal the box body 1, and the box cover 2 is a boss-shaped structure, and the box cover 2 comprises a protrusion 21 and a flat portion 22, and the inner wall of the protrusion 21 fits with the outer wall of the box body 1, and the bottom of the protrusion 21 is provided with an inner sealing ring 24 and an outer sealing ring 25 radially from the inside to the outside, and a plurality of clamping blocks 23 are provided at the bottom of the flat portion 22, and a fixing block 11 is provided on the box body 1, and an inner groove 13 and an outer groove 12 respectively fitting with the inner sealing ring 24 and the outer sealing ring 25 are formed on the box body 1, and an isolation plate 3 is provided between the box body 1 and the box cover 2.

[0026] The contour of the outer sealing ring 25 is the same as the circumferential contour of the protrusion 21, the shape of the inner sealing ring 24 is the same as the outer sealing ring 25, the size of the inner sealing ring 24 is smaller than the outer sealing ring 25, the inner sealing ring 24 and the outer sealing ring 25 are made of the same material, which is a sealing material that can come into contact with food, specifically nitrile rubber, a fixing frame 4 is provided on the inner wall of the box body 1, the fixing frame 4 is a U-shaped frame, the contour of the fixing frame 4 is the same as the contour of the inner wall of the box body 1, the fixing frame 4 is located at the bottom of the isolation plate 3, the isolation plate 3 is a pulp board, the thickness of the isolation plate 3 is the same as the distance from the top of the fixing frame 4 to the top of the box body 1, the fixing frame 4 and the top of the box body 1 tighten the isolation plate 3.

[0027] There are four clamping blocks 23, which are respectively located below the four side positions of the flattening portion 22. The bottom of any clamping block 23 protrudes toward the inner side of the box body to form a right-angled triangle protrusion. The inclined surface of the right-angled triangle protrusion extends from bottom to top toward the inner side of the box body 1. When the clamping block 23 is pressed down, the clamping block 23 gradually bends toward the outer side of the box body 1 along the pressing distance, and automatically rebounds and clamps after the fixing block 11 slides to the top of the triangle. The fixing block 11 is located below the clamping block 23 and corresponds to the same number of the clamping blocks 23. Any clamping block 23 is made of PVC material, which has a certain elasticity and hardness to meet the bending and clamping of the clamping block 23 and the fixing block 11.

[0028] The implementation principle of Example 1 of the present application is as follows: when the lunch box is used, the food is first placed inside the box body 1 along the inner wall of the box body 1, and the total height of the food placed does not exceed the fixed frame 4, then the isolation plate 3 is placed above the fixed frame 4, and the isolation plate 3 performs the first seal on the inside of the box body 1, and then the protrusion 21 of the box cover 2 is pressed down along the outer wall of the box body 1, at this time, the bottom of the protrusion 21 is tightly against the top of the isolation plate 3, the protrusion 21 and the fixed frame 4 tighten the isolation plate 3, and at the same time the inner sealing ring 24 and the outer sealing ring under the protrusion 21 25 are respectively inserted into the inner groove 13 and the outer groove 12 on the top of the box body 1 to form a second seal and a third seal, and the sealing of the box body 1 is improved through the triple seal; when the box cover 2 is pressed down, the clamping block 23 on the flattening portion 22 is pressed down synchronously, and after the clamping block 23 contacts with the fixing block 11, it gradually bends toward the outside of the box body 1 with the pressing distance, and automatically rebounds and clamps after the fixing block 11 slides to the top of the triangle, so as to connect and fix the box body 1 and the box cover 2 to avoid shaking and tilting to cause the box body and the box cover to separate.

[0029] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the basic features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A highly sealed lunch box, comprising a box body (1) and a box cover (2), wherein the box cover (2) is arranged on the box body (1) to seal the box body (1), characterized in that: The box cover (2) is a boss-shaped structure, comprising a protruding portion (21) and a flat portion (22), the inner wall of the protruding portion (21) being matched with the outer wall of the box body (1), the bottom of the protruding portion (21) being provided with an inner sealing ring (24) and an outer sealing ring (25) radially from the inside to the outside, the bottom of the flat portion (22) being provided with a plurality of clamping blocks (23), the box body (1) being provided with a fixing block (11), the box body (1) being provided with an inner groove (13) and an outer groove (12) respectively matched with the inner sealing ring (24) and the outer sealing ring (25), and an isolation plate (3) being provided between the box body (1) and the box cover (2).

2. A highly sealed lunch box according to claim 1, characterized in that: The profile of the outer sealing ring (25) is the same as the circumferential profile of the protruding portion (21), the shape of the inner sealing ring (24) is the same as that of the outer sealing ring (25), and the size of the inner sealing ring (24) is smaller than that of the outer sealing ring (25).

3. A highly sealed lunch box according to claim 2, characterized in that: A fixing frame (4) is provided on the inner wall of the box body (1); the contour of the fixing frame (4) is the same as the contour of the inner wall of the box body (1); the fixing frame (4) is located at the bottom of the isolation plate (3) to support the isolation plate (3).

4. A highly sealed lunch box according to claim 3, characterized in that: The isolation plate (3) is a pulp board, and the thickness of the isolation plate (3) is the same as the distance from the top of the fixing frame (4) to the top of the box body (1).

5. The high-sealing lunch box according to claim 1, characterized in that: The number of the clamping blocks (23) is four, and the four clamping blocks (23) are respectively located below four side positions of the flattening portion (22).

6. A highly sealed lunch box according to claim 5, characterized in that: The bottom of any one of the clamping blocks (23) protrudes inwards to form a right-angled triangle protrusion, and the fixing blocks (11) are located below the clamping blocks (23) and have the same number and one-to-one correspondence with the clamping blocks (23).

7. A highly sealed lunch box according to claim 6, characterized in that: Any one of the clamping blocks (23) is made of PVC material.

8. The high-sealing lunch box according to claim 1, characterized in that: The box body (1) is made of paper pulp.

9. The high-sealing lunch box according to claim 1, characterized in that: The inner sealing ring (24) and the outer sealing ring (25) are made of the same material, which is a sealing material that can come into contact with food, specifically nitrile rubber.

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