Novel lunch box and cover body structure thereof

Abstract

The utility model discloses a novel lunch box and a cover body structure thereof, which can improve the installation stability of a sealing ring of the lunch box and further ensure stable and effective sealing performance. Wherein the cover body structure comprises a top cover, a sealing ring and a fixing piece; a limiting flange is arranged on the inner side of the edge of the inner side face of the top cover. The sealing ring is arranged on the inner side face of the top cover in a matched mode and located on the side, close to the edge of the inner side face of the top cover, of the limiting flange, the sealing ring comprises a limiting part and an elastic part which are integrally connected, the elastic part is tightly attached to the edge of the inner side face of the top cover, and the limiting part is close to the limiting flange; and the fixing piece is fixed on the limiting flange through ultrasonic welding and is provided with a pressing part for pressing the limiting part.

Description

Technical Field

[0001] The utility model relates to the technical field of lunch boxes, in particular to a novel lunch box and its lid structure. Background Art

[0002] In the prior art, in order to improve the sealing effect, the sealing of the lunch box is mainly achieved by a sealing ring arranged on the lid, and the installation structure between the sealing ring and the lid is usually to design a vertical installation groove at the relative position of the edge of the lid and the box body, and then tightly fit the sealing ring into the installation groove. When the lid is tightly closed on the box body, the edges of the lid and the box body squeeze the sealing ring towards each other to achieve sealing.

[0003] In the current lunch box products on the market, the installation of the sealing ring is only achieved by a tight fit method. After the lunch box products are used multiple times, the sealing ring is likely to become loose from the installation groove due to aging, oil hanging, etc., resulting in inconvenient opening and closing of the lid, and the sealing performance of the lunch box deteriorates. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a novel lunch box and its lid structure, solve the problems existing in the prior art, improve the installation stability of the sealing ring of the lunch box, and further ensure a stable and effective sealing performance.

[0005] In order to achieve the above purpose, one of the solutions of the utility model is:

[0006] A lid structure, comprising a top lid, a sealing ring and a fixing member; a limiting flange is arranged on the inner side of the inner side edge of the top lid; the sealing ring is fitted on the inner side of the top lid and is located on one side of the limiting flange close to the inner side edge of the top lid, and it includes a limiting portion and an elastic portion integrally connected, the elastic portion is in contact with the inner side edge of the top lid, and the limiting portion is close to the limiting flange; the fixing member is fixed on the limiting flange by ultrasonic welding and is provided with a pressing portion for pressing the limiting portion.

[0007] A groove is arranged on the inner side of the top lid, and the side wall of the elastic portion abuts against the side wall of the groove.

[0008] The fixing member further includes a connecting portion integrally connected with the pressing portion, the connecting portion is located on the side of the limiting flange away from the inner side edge of the top lid, and is fixed on the inner side of the top lid by ultrasonic welding.

[0009] The elastic portion is of a U-shaped structure, and its opening faces the inner side of the top lid.

[0010] Another solution of the utility model is:

[0011] A new type of lunch box, comprising the lid structure described above, as well as the lunch box main body and the side cover; the top lid and the side cover are respectively pivotally connected to the upper surface and the front surface of the lunch box main body; the rear edge of the top lid is pivotally connected to the upper edge of the rear surface of the lunch box main body; the lower edge of the side cover is pivotally connected to the lower edge of the front surface of the lunch box main body, and its upper edge is snap-connected to the upper edge of the front surface of the lunch box main body and presses against the front edge of the top lid; the lunch box main body and the top lid clamp the elastic part of the sealing ring towards each other.

[0012] A cutlery slot is provided on the inner side surface of the side cover.

[0013] A snap edge is provided on the upper edge of the front surface of the lunch box main body, and the snap edge is provided with a notch; a limiting edge is provided on the front edge of the top lid and is movably fitted in the notch; a snap protrusion for snap-fitting with the snap edge is provided on the upper edge of the side cover, and the snap protrusion hooks on the snap edge to enable the side cover to be snap-connected to the lunch box main body and presses against the limiting edge.

[0014] Preferably, a relief groove for the snap protrusion is provided on the top lid.

[0015] The lunch box main body includes a bottom shell and a tray fitted in the bottom shell, and the tray is used for containing meals; the top lid and the side cover are both pivotally connected to the bottom shell, and the side cover is snap-connected to the tray.

[0016] After adopting the above technical solution, the present utility model has the following technical effects:

[0017] The present utility model realizes the pressing and fitting of the sealing ring between the limiting flange and the inner side edge of the top lid through the connection of the fixing member and the limiting flange, thereby realizing the fixation of the sealing ring on the top lid, and realizing the sealing function of the lunch box through the elastic part of the sealing ring; since the fixing member is fixed by ultrasonic welding and the limiting part of the sealing ring is pressed by its pressing part, the sealing ring is not easily loosened from the top lid, and the structure and function are more stable. Description of the Drawings

[0018] Figure 1 It is a cross-sectional view and a partial enlarged view of a specific embodiment of the present utility model;

[0019] Figure 2 It is a perspective view of a specific embodiment of the present utility model;

[0020] Figure 3 It is a schematic diagram of the open state of the side cover of a specific embodiment of the present utility model;

[0021] Figure 4 It is a schematic diagram of the open state of the top lid of a specific embodiment of the present utility model;

[0022] Figure 5 Schematic diagram of the state of removing the tray in a specific embodiment of the present utility model;

[0023] Explanation of the reference numerals in the drawings:

[0024] 1 - Top cover; 11 - Limiting flange; 12 - Groove; 13 - Limiting edge; 14 - Relief groove;

[0025] 2 - Sealing ring; 21 - Limiting part; 22 - Elastic part;

[0026] 3 - Fixing member; 31 - Pressing part; 32 - Connecting part;

[0027] 4 - Bento box main body; 4a - Bottom shell; 4b - Tray; 41 - Buckling edge; 42 - Notch;

[0028] 5 - Side cover; 51 - Tableware groove; 52 - Buckling protrusion;

[0029] 6 - Fork and spoon. Specific implementation mode

[0030] In order to further explain the technical solution of the present utility model, the present utility model will be elaborated in detail through specific embodiments below.

[0031] Refer to Figure 1 As shown, the present utility model discloses a cover structure, including a top cover 1, a sealing ring 2 and a fixing member 3;

[0032] A limiting flange 11 is arranged on the inner side of the inner side edge of the top cover 1;

[0033] The sealing ring 2 is fitted on the inner side surface of the top cover 1 and is located on the side of the limiting flange 11 close to the inner side edge of the top cover 1. It includes an integrally connected limiting part 21 and an elastic part 22. The elastic part 22 is in close contact with the inner side edge of the top cover 1, and the limiting part 21 is close to the limiting flange 11;

[0034] The fixing member 3 is fixed on the limiting flange 11 by ultrasonic welding, and is provided with a pressing part 31 for pressing the limiting part 21.

[0035] Through the above scheme, the present utility model realizes the pressing and fitting of the sealing ring 2 between the limiting flange 11 and the inner side edge of the top cover 1 through the connection between the fixing member 3 and the limiting flange 11, thereby realizing the fixation of the sealing ring 2 on the top cover 1, and realizing the sealing function of the bento box through the elastic part 22 of the sealing ring 2; Since the fixing member 3 is fixed by ultrasonic welding, and the limiting part 21 of the sealing ring 2 is pressed by its pressing part 31, the sealing ring 2 is not easily loosened from the top cover, and the structure and function are more stable.

[0036] The following shows specific embodiments of the above cover structure.

[0037] The inner side of the above-mentioned top cover 1 is provided with a groove 12, so the inner edge thereof is the side wall of the groove 12, that is, the side of the elastic part 22 abuts against the side wall of the groove 12.

[0038] The above-mentioned fixing part 3 further includes a connecting part 32 integrally connected with the pressing part 31. The connecting part 32 is located on the side of the limiting flange 11 away from the edge of the inner side of the top cover 1 and is fixed on the inner side of the top cover 1 by ultrasonic welding. The combination of the fixing part 3 and the top cover 1 can be made more firm through two ultrasonic weldings, thereby ensuring that the sealing ring 2 is clamped in the groove-like structure formed between the pressing part 31 and the inner side of the top cover 1.

[0039] The above-mentioned elastic part 22 is of a U-shaped structure, and its opening faces the inner side of the top cover 1, so that a cavity that can be compressed and deformed is formed between the elastic part 22 and the top cover 1, thereby ensuring the elasticity of the sealing ring 2.

[0040] Reference Figures 1 to 5 As shown, the present utility model also discloses a new type of lunch box, which includes the above-mentioned cover structure, as well as a lunch box main body 4 and a side cover 5; the top cover 1 and the side cover 5 are respectively pivotally connected to the upper surface and the front surface of the lunch box main body 4; the rear side of the top cover 1 is pivotally connected to the upper rear side of the lunch box main body 4; the lower side of the side cover 5 is pivotally connected to the lower front side of the lunch box main body 4, and its upper side is snap-connected to the upper front side of the lunch box main body 4 and presses the front side of the top cover 1; the lunch box main body 4 and the top cover 1 clamp the elastic part 22 of the sealing ring 2 in opposite directions.

[0041] The following shows specific embodiments of the above-mentioned lunch box.

[0042] The inner side of the above-mentioned side cover 5 is provided with a tableware groove 51, which can be used to place at least one of tableware such as a fork-spoon 6, a fork, a spoon, and chopsticks.

[0043] The upper front side of the above-mentioned lunch box main body 4 is provided with a snap edge 41, and the snap edge 41 is provided with a notch 42; the front side of the top cover 1 is provided with a limiting edge 13 that is movably fitted in the notch 42; the upper side of the side cover 5 is provided with a snap protrusion 52 that is snap-fitted with the snap edge 41, and the snap protrusion 52 hooks on the snap edge 41 to make the side cover 5 snap-connected to the lunch box main body 4 and press the limiting edge 13 to prevent the top cover 1 from being opened.

[0044] Further, the above-mentioned top cover 1 is provided with a relief groove 14 for the snap protrusion 52.

[0045] The above-mentioned lunch box main body 4 includes a bottom shell 4a and a tray 4b fitted in the bottom shell 4a. The tray 4b is used to hold meals and can be taken out from the bottom shell 4a; the top cover 1 and the side cover 5 are both pivotally connected to the bottom shell 4a, and the side cover 5 is snap-connected to the tray 4b.

[0046] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by those of ordinary skill in the relevant technical field shall be regarded as not departing from the patent scope of the present utility model.

Claims

1. A cover structure, characterized in that: It includes a top cover, a sealing ring and a fixing member; A limiting flange is arranged on the inner side of the edge of the inner side surface of the top cover; The sealing ring is fitted on the inner side surface of the top cover and is located on one side of the limiting flange close to the edge of the inner side surface of the top cover. It includes a limiting portion and an elastic portion connected integrally. The elastic portion is in close contact with the edge of the inner side surface of the top cover, and the limiting portion is close to the limiting flange; The fixing member is fixed on the limiting flange by ultrasonic welding, and is provided with a pressing portion for pressing the limiting portion.

2. The cover structure according to claim 1, characterized in that: A groove is arranged on the inner side surface of the top cover, and the side wall of the elastic portion abuts against the side wall of the groove.

3. The cover structure according to claim 1, characterized in that: The fixing member further includes a connecting portion integrally connected with the pressing portion. The connecting portion is located on the side of the limiting flange away from the edge of the inner side surface of the top cover and is fixed on the inner side surface of the top cover by ultrasonic welding.

4. The cover structure according to claim 1, characterized in that: The elastic portion is of a U-shaped structure, and its opening faces the inner side surface of the top cover.

5. A new type of lunch box, including the cover structure according to any one of claims 1 to 4, characterized in that: It further includes a lunch box main body and a side cover; The top cover and the side cover are respectively pivotally fitted on the upper surface and the front surface of the lunch box main body; the rear edge of the top cover is pivotally fitted with the upper rear edge of the lunch box main body; the lower edge of the side cover is pivotally fitted with the lower front edge of the lunch box main body, and its upper edge is snap-connected to the upper front edge of the lunch box main body and presses the front edge of the top cover; the lunch box main body and the top cover clamp the elastic portion of the sealing ring in opposite directions.

6. The new type of lunch box according to claim 5, characterized in that: A tableware groove is arranged on the inner side surface of the side cover.

7. The new type of lunch box according to claim 5, characterized in that: A snap edge is arranged on the upper front edge of the lunch box main body, and the snap edge is provided with a notch; a limiting edge is arranged on the front edge of the top cover and is movably fitted in the notch; a snap protrusion for snap-fitting with the snap edge is arranged on the upper edge of the side cover, and the snap protrusion hooks on the snap edge to enable the side cover to be snap-connected to the lunch box main body and presses the limiting edge.

8. The new type of lunch box according to claim 7, characterized in that: The top cover is provided with a relief groove for the snap protrusion.

9. The new type of lunch box according to claim 5, characterized in that: The lunch box main body includes a bottom shell and a tray fitted in the bottom shell. The tray is used for containing meals; the top cover and the side cover are both pivotally fitted with the bottom shell, and the side cover is snap-connected to the tray.

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