Lunch box capable of being opened quickly
By arranging a driving part and a locking part in the lunch box, the lid can be opened quickly with one hand, which solves the problem of inconvenience of two-handed operation in the prior art, improves the user experience and ensures the firmness and sealing of the connection between the box body and the upper cover.
Patent Information
- Application Number
- CN202422809110.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The fully open lid design of existing lunch boxes requires two hands to operate and it is not easy to separate the box body and the lid, so the user experience needs to be improved.
By arranging a first locking portion and a contact portion between the box body and the upper cover, and using a driving member to drive the upper cover to switch between the open and closed states, the rotating connection portion of the driving member cooperates with the contact portion to make the upper cover tilt up in the open state, and the second locking portion moves away from the first locking portion, so as to facilitate the removal of the upper cover.
It realizes a quick, easy and labor-saving opening operation, improves the user experience and ensures the firmness and sealing of the connection between the box body and the upper cover.
Smart Images

Figure CN223392082U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of food storage boxes, in particular to a lunch box with a quick-opening lid. Background Art
[0002] A lunch box, also known as a bento box, is a container specifically designed to hold food. It's mostly made of aluminum, stainless steel, or plastic. Plastic lunch boxes are food-grade containers designed to facilitate takeout. They're a common household item and an essential container for picnics or hikes. Plastic lunch boxes come in a variety of styles and sizes. Square plastic lunch boxes are perfect for storing a variety of ingredients. Rectangular plastic lunch boxes are ideal for storing moist foods like fruits, vegetables, and seafood. Round plastic lunch boxes are ideal for storing sauces, spreads, and various side dishes.
[0003] The most basic structure of a food storage box consists of a box body and a lid. Typically, the box body and lid are pivotally connected and positioned using a mechanism such as a buckle. When the buckle is released, the lid can be flipped open to access food. Currently, fully removable lunch boxes (i.e., the lid can be completely removed from the box body) require at least two buckles to secure the lid to the box body. To open the lid, the user must either use both hands to separately unlock the two buckles, or apply external force to separate the lid from the box body. This design is not user-friendly and leaves room for improvement in user experience.
[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content
[0005] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a lunch box with a quick-opening lid. Through the structural design and cooperation between the box body, the upper cover and the driving member, the driving member can be movably arranged in a rotating installation position, and a rotating connection part is provided on the driving member, and the driving member can drive the upper cover to move to switch the upper cover between the open state and the closed state. In this way, in the closed state, the second locking part locks the first locking part, so that a lock is formed between the box body and the upper cover to ensure the firmness of the connection between the box body and the upper cover; in the open state, the driving member drives the rotating connection part to press against the contact part, so that the rotating connection part is subjected to force to lift the upper cover upward, providing an upward force to the cover body, so that the second locking part is away from the first locking part, thereby facilitating the removal of the upper cover. Secondly, it is easy to assemble, simple to operate, labor-saving, and has a good user experience.
[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0007] A lunch box with a quick-open lid, comprising:
[0008] The box body has a receiving cavity with one end open, and the open end of the box body is respectively provided with a first locking portion and a contact portion; the first locking portion is provided beside the contact portion;
[0009] An upper cover, wherein the upper cover is provided with a rotation installation position and a second locking portion for cooperating with the first locking portion;
[0010] A driving member is movably arranged in the rotating mounting position, and a rotating connection portion for cooperating with the contact portion is provided on the driving member. The driving member can drive the upper cover to move so as to switch the upper cover between an open state and a closed state.
[0011] In the open state, the driving member can drive the rotating connecting portion to abut against the contact portion to tilt the upper cover upward so that the second locking portion is away from the first locking portion;
[0012] In the closed state, the second locking portion locks the first locking portion, and the rotating connection portion is away from the contact portion.
[0013] As a preferred solution, the driving member is rotatably connected to the rotating mounting position via a rotating shaft; the driving member includes a main body, and an opening and closing portion is provided at one end of the main body away from the rotating connection portion; the rotating connection portion extends from one end of the main body away from the closing portion.
[0014] As a preferred solution, the contact portion is integrally protruded outward from the periphery of the upper end of the box body, and a first buckling portion is also provided at the lower end of the contact portion; a second buckling portion is also protruded from one end of the main body close to the opening and closing portion for matching with the first buckling portion. In the closed state, the second buckling portion is buckled on the first buckling portion. The design of the first buckling portion and the second buckling portion forms a double locking effect between the box body and the upper cover in the closed state.
[0015] As a preferred solution, an extension portion is further provided at the lower end of the second locking portion, and a mounting groove is recessed on the extension portion. A silicone component is installed in the mounting groove. In the closed state, the outside of the silicone component is tightly attached to the inside of the accommodating cavity. The design of the silicone component improves the sealing between the box body and the upper cover in the closed state.
[0016] As a preferred solution, the upper end surface of the upper cover is integrally provided with an inwardly recessed mounting groove, the bottom of the mounting groove is provided with an air vent connected to the accommodating cavity, a sealing member and a limiting member are provided in the mounting groove, the sealing member can be flipped back and forth in the mounting groove and cover the upper end opening of the air vent, the limiting member is provided in the mounting groove and limits the position of the sealing member; the setting of the air vent is used for the user to open the air vent for ventilation as needed, and at the same time, when the upper cover is opened, the air pressure inside and outside the lunch box can be ensured to remain consistent, making the opening process of the upper cover more convenient.
[0017] As a preferred solution, two symmetrically arranged mounting positions are provided in the mounting groove, and a hinge hole is provided in each mounting position. Hinge rods that cooperate with the hinge holes extend outward on both sides of the seal, and the seal is flipped back and forth up and down through the cooperation between the hinge rods and the hinge holes; the limiter is provided in the mounting groove and limits the upper and lower positions of the hinge rod to prevent the hinge rod from falling off from the hinge hole, thereby ensuring the stability of the structure.
[0018] As a preferred solution, the first locking portion is a snap-fit groove, and the second locking portion is a snap-fit portion.
[0019] As a preferred solution, the first buckling portion and the second buckling portion are hooks.
[0020] The second locking portion is moved away from the first locking portion so as to facilitate the removal of the upper cover.
[0021] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a three-dimensional diagram of an embodiment of the present utility model (closed state);
[0023] Figure 2 It is a three-dimensional diagram of an embodiment of the utility model (open state);
[0024] Figure 3 It is a cross-sectional view of an embodiment of the present utility model (closed state);
[0025] Figure 4 It is a cross-sectional view of an embodiment of the present utility model (open state);
[0026] Figure 5This is an exploded view of an embodiment of the present utility model;
[0027] Figure 6 yes Figure 3 A partial enlarged view of point A in the middle;
[0028] Figure 7 yes Figure 4 A partial enlarged view of point B in the middle.
[0029] Description of the accompanying drawings:
[0030] 10. Box body 11. Accommodation cavity
[0031] 12. First locking portion 13. Contact portion
[0032] 14. First buckle part
[0033] 20. Upper cover 21. Rotation installation position
[0034] 22. Second locking portion 23. Extension portion
[0035] 24. Installation groove 25. Silicone parts
[0036] 26. Mounting slot 27. Ventilation hole
[0037] 28. Sealing element 29. Limiting element
[0038] 261, installation position 262, hinge hole
[0039] 263. Articulated rod
[0040] 30. Driving member 31. Rotating connection part
[0041] 32. Rotating shaft 301. Main body
[0042] 302, opening and closing portion 303, second buckling portion. DETAILED DESCRIPTION
[0043] Please refer to Figures 1 to 7 As shown, it shows the specific structure of an embodiment of the present utility model.
[0044] In the description of the present invention, it should be noted that directional words, such as the terms "up", "down", "front", "back", "left", "right", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the drawings or during normal wear and use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.
[0045] A lunch box with a quick-opening lid comprises a box body 10, an upper cover 20 and a driving member 30.
[0046] The box body 10 has a receiving cavity 11 with one end open. The open end of the box body 10 is provided with a first locking portion 12 and a contact portion 13. The first locking portion 12 is provided beside the contact portion 13. The first locking portion 12 is a snap-fit groove.
[0047] Preferably, the contact portion 13 is integrally protruded outward from the upper peripheral edge of the box body 10 , and a first buckling portion 14 is further provided at the lower end of the contact portion 13 ;
[0048] The upper cover 20 is provided with a rotation installation position 26121 and a second locking portion 22 for cooperating with the first locking portion 12; preferably, the second locking portion 22 is a snap-fit portion.
[0049] Preferably, an extension portion 23 is further provided at the lower end of the second locking portion 22, and a mounting groove 24 is recessed on the extension portion 23. A silicone member 25 is installed in the mounting groove 24. In the closed state, the exterior of the silicone member 25 is tightly attached to the interior of the accommodating cavity 11. The design of the silicone member 25 improves the sealing between the box body 10 and the upper cover 20 in the closed state.
[0050] Preferably, the upper end surface of the upper cover 20 is integrally provided with a mounting groove 26 recessed inwardly, and a ventilation hole 27 communicating with the accommodating cavity 11 is provided at the bottom of the mounting groove 26. A sealing member 28 and a limiting member 29 are provided in the mounting groove 26. The sealing member 28 can be flipped back and forth in the mounting groove 26 and covers the upper end opening of the ventilation hole 27. The limiting member 29 is provided in the mounting groove 26 and limits the position of the sealing member 28. The setting of the ventilation hole 27 is used for the user to open the ventilation hole 27 for ventilation as needed. At the same time, when the upper cover 20 is opened, the air pressure inside and outside the lunch box can be ensured to remain consistent, making the opening process of the upper cover 20 more convenient.
[0051] Preferably, two symmetrical mounting positions 261 are provided in the mounting groove 26, and a hinge hole 262 is provided in each mounting position 261. Hinged rods 263 that cooperate with the hinge holes 262 extend outward on both sides of the seal 28, and the seal 28 is flipped back and forth up and down through the cooperation between the hinge rods 263 and the hinge holes 262; the limiting member 29 is provided in the mounting groove 26 and limits the upper and lower positions of the hinge rod 263 to prevent the hinge rod 263 from falling off from the hinge hole 262, thereby ensuring the stability of the structure.
[0052] The driving member 30 is movably disposed in the rotation installation position 26121. The driving member 30 is provided with a rotation connection portion 31 for cooperating with the contact portion 13. The driving member 30 can drive the upper cover 20 to move so as to switch the upper cover 20 between the open state and the closed state.
[0053] In the open state, the driving member 30 can drive the rotating connecting portion 31 to abut against the contact portion 13 to tilt the upper cover 20 upward, so that the second locking portion 22 is away from the first locking portion 12;
[0054] In the closed state, the second locking portion 22 locks the first locking portion 12 , and the rotation connection portion 31 is away from the contact portion 13 .
[0055] Preferably, the driving member 30 is rotatably connected to the rotating mounting position 26121 through a rotating shaft 32; the driving member 30 includes a main body 301, and an opening and closing portion 302 is provided at one end of the main body 301 away from the rotating connection portion 31; the rotating connection portion 31 extends from one end of the main body 301 away from the closing portion 302.
[0056] The main body 301 is provided with a second fastening portion 303 protruding from one end near the opening and closing portion 302, adapted to mate with the first fastening portion 14. In the closed state, the second fastening portion 303 is fastened to the first fastening portion 14. The design of the first fastening portion 14 and the second fastening portion 303 creates a double locking effect between the box body 10 and the upper cover 20 in the closed state. Preferably, the first fastening portion 14 and the second fastening portion 303 are hooks.
[0057] The design focus of the utility model is that it mainly relies on the structural design and cooperation between the box body, the upper cover and the driving member, the opening end of the box body is respectively provided with a first locking part and a contact part; the upper cover is provided with a second locking part; the driving member is movably arranged in a rotating mounting position, the driving member is provided with a rotating connection part, and the driving member can drive the upper cover to move to switch the upper cover between the open state and the closed state. In this way, in the closed state, the second locking part locks the first locking part, so that a lock is formed between the box body and the upper cover to ensure the firm connection between the box body and the upper cover; in the open state, the driving member drives the rotating connection part to press against the contact part, so that the rotating connection part is forced to tilt the upper cover upward, providing an upward force to the cover body, so that the second locking part is away from the first locking part, thereby facilitating the removal of the upper cover. Secondly, it is easy to assemble, easy to operate, labor-saving, and has a good user experience.
[0058] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A lunch box with a quick-open lid, characterized by: Includes: A box body, wherein the box body has a receiving cavity with one end open, and the open end of the box body is respectively provided with a first locking portion and a contact portion; the first locking portion is provided beside the contact portion; An upper cover, wherein the upper cover is provided with a rotation installation position and a second locking portion for cooperating with the first locking portion; A driving member is movably arranged in the rotating mounting position, and a rotating connection portion for cooperating with the contact portion is provided on the driving member. The driving member can drive the upper cover to move so as to switch the upper cover between an open state and a closed state. In the open state, the driving member can drive the rotating connecting portion to abut against the contact portion to tilt the upper cover upward so that the second locking portion is away from the first locking portion; In the closed state, the second locking portion locks the first locking portion, and the rotating connection portion is away from the contact portion.
2. The lunch box with quick opening lid according to claim 1, characterized in that: The driving member is rotatably connected to the rotating installation position via a rotating shaft; the driving member includes a main body, and an opening and closing portion is provided at one end of the main body away from the rotating connection portion; the rotating connection portion is extended from one end of the main body away from the closing portion.
3. The lunch box with quick opening lid according to claim 2, characterized in that: The contact portion is integrally protruded outward from the periphery of the upper end of the box body, and a first buckling portion is also provided at the lower end of the contact portion; a second buckling portion is also protruded from one end of the main body close to the opening and closing portion for adapting to the first buckling portion, and in the closed state, the second buckling portion is buckled on the first buckling portion.
4. The lunch box with quick opening lid according to claim 1, characterized in that: An extension portion is further provided at the lower end of the second locking portion, a mounting groove is recessed on the extension portion, a silicone member is installed in the mounting groove, and in a closed state, the exterior of the silicone member is in close contact with the interior of the accommodating cavity.
5. The lunch box with quick opening lid according to claim 1, characterized in that: The upper end surface of the upper cover is integrally provided with an inwardly recessed mounting groove, and the bottom of the mounting groove is provided with an air vent connected to the accommodating cavity. A sealing member and a limiting member are provided in the mounting groove. The sealing member can be flipped back and forth in the mounting groove and cover the upper end opening of the air vent, and the limiting member is provided in the mounting groove and limits the position of the sealing member.
6. The lunch box with quick opening lid according to claim 5, characterized in that: Two symmetrical mounting positions are provided in the mounting groove, and a hinge hole is provided in each mounting position. Hinge rods that cooperate with the hinge holes extend outward on both sides of the seal, and the seal is set to be flipped back and forth up and down through the cooperation between the hinge rods and the hinge holes; the limiter is provided in the mounting groove and limits the upper and lower positions of the hinge rods.
7. The lunch box with quick opening lid according to claim 1, characterized in that: The first locking portion is a clamping groove, and the second locking portion is a clamping portion.
8. The lunch box with quick opening lid according to claim 3, characterized in that: The first buckling portion and the second buckling portion are hooks.