Lunch box with hidden buckles

Abstract

The utility model discloses a buckle hidden lunch box which comprises a box body and a box cover, a plurality of buckles are rotationally connected to the periphery of the box cover, a plurality of grooves corresponding to the buckles are formed in the outer side wall of a shell of the box body in the peripheral direction, the buckles are clamped in the grooves, and the outer side walls of the buckles are flush with the outer side wall of the box body; a hollow protruding part is formed on the shell between the adjacent grooves, and an opening is formed in the top of the protruding part; an insert for sealing the opening is connected to the opening, and a drainage hole communicated with the interior of the protruding part is formed in the bottom of the protruding part. The buckle hidden lunch box is light in weight and convenient to carry, water entering the space between the inner container and the inner wall of the shell can be discharged in time, and the buckle hidden lunch box is sanitary and good in safety.

Description

Technical Field

[0001] This application relates to the technical field of daily necessities, and specifically relates to a buckle-hidden lunch box. Background Art

[0002] In daily life, people often use lunch boxes to hold or preserve food so as to keep the food fresh or warm for a better taste. The lunch boxes of related technologies include a lid and a box body. The lid is generally injection-molded from plastic, and the box body can be made of plastic, stainless steel, etc. In order to make the lunch box have heat preservation performance and sealing performance, buckles are provided on the periphery of the lid, and clamping blocks for the buckles to be clamped are provided on the box body, and a sealing ring is provided between the lid and the box body. For example, the portable lunch box disclosed in the Chinese patent application with the publication number CN219661115U has a clamping ring provided at the opening at the top of the lunch box body, and a clamping plate cooperating with the clamping ring is provided on the lunch box lid through a rotating shaft. The clamping cooperation between the clamping plate and the clamping ring realizes the locking of the lid and the box body; another example is the lunch box disclosed in the Chinese patent application with the publication number CN221813418U, where the first buckle on the lid is rotatably connected to the lid through a first insertion rod, and the first buckle is clamped with the clamping ring at the edge of the opening at the top of the box body; another example is the lunch box disclosed in the Chinese patent application with the publication number CN219661112U, where a clamping strip is provided at the opening at the top of the box body, and a buckle clamped with the clamping strip is connected to the edge of the side wall of the lid. For the lunch boxes of the above related technologies, after the buckle on the lid is clamped with the box body, the buckle protrudes on the surface of the box body, which results in poor integrity of the lunch box, an insufficiently compact structure, and a risk that the buckle may be accidentally opened.

[0003] Currently, some lunch boxes with hidden buckles have also appeared on the market. A plurality of grooves for accommodating the buckles are provided on the outer side wall of the box body. After the buckles are clamped, the buckles are accommodated or hidden in the grooves; for example, the lunch box disclosed in the Chinese patent application with the publication number CN219699254U, the box body of this lunch box is composed of an outer shell and an inner liner. In order to improve the heat preservation performance of the box body, the wall thickness of the outer shell is generally set to be relatively thick. After the inner liner is installed in the outer shell, the top of the outer shell is sealed with glue; or in order to reduce the weight of the box body and facilitate the demolding of the outer shell, the wall thickness of the outer shell is set to be relatively thin. After the inner liner is connected to the outer shell, a relatively large gap is formed between the opening at the top of the outer shell and the inner liner, and then inserts are installed at this gap to seal the opening at the top of the outer shell to prevent water from entering between the inner liner and the inner wall of the outer shell.

[0004] The snap - hidden lunch box of the above - mentioned related technology has the following deficiencies: If the wall thickness of the outer shell of the box body is set to be relatively thick, it will inevitably increase the weight of the box body, resulting in a heavy lunch box and being inconvenient to carry; if the wall thickness of the outer shell of the box body is set to be relatively thin and an insert is installed at the opening on the top of the shell, then during the use or cleaning of the lunch box, it is very easy for water to enter between the inner liner and the inner wall of the outer shell from the gap at the edge of the insert, and the water that enters between the inner liner and the inner wall of the outer shell is not easy to drain, and bacteria will breed over time, endangering human health and having poor safety. Utility Model Content

[0005] The technical problem to be solved by this application is to overcome the defects of the above - mentioned prior art and provide a snap - hidden lunch box that makes the box body light in weight, convenient to carry, enables the water that enters between the inner liner and the inner wall of the outer shell to be drained in time, is hygienic and has good safety.

[0006] The technical solution of this application is to provide a snap - hidden lunch box with the following structure: It includes a box body and a box cover connected to the box body. A plurality of snaps are rotatably connected circumferentially to the box cover. A plurality of grooves corresponding to the snaps are provided circumferentially on the outer side wall of the outer shell of the box body. The snaps are snap - connected in the grooves, and the outer side wall of the snap is flush with the outer side wall of the box body; a hollow protrusion is formed on the outer shell between adjacent grooves, and an opening is formed at the top of the protrusion; an insert for closing the opening is connected at the opening, and a drain hole communicating with the inside of the protrusion is provided at the bottom of the protrusion.

[0007] In some embodiments, each of the grooves extends along the height direction of the box body and penetrates the bottom of the box body, and the free end of the snap extends downward along the length direction of the groove to the bottom of the box body.

[0008] In some embodiments, an inward - concave notch is provided at the bottom of each snap.

[0009] In some embodiments, a plurality of support ribs extending along the height direction of the protrusion are provided on the inner wall of the protrusion, and the bottom of the insert abuts against the upper ends of the support ribs.

[0010] In some embodiments, the protrusion and the outer shell are of an integrally injection - molded structure, and the inner cavity of the protrusion is formed between the outer side wall of the protrusion and the outer shell.

[0011] In some embodiments, the lower end of the protrusion is set as an arc that is wider at the top and narrower at the bottom, and the drain hole is provided at the lower end of the arc.

[0012] In some embodiments, a horizontally arranged clamping plate is connected in the groove, a clamping platform extending downward is provided at the outer edge of the clamping plate, and two clamping blocks that are matched and snap - connected with the clamping platform are provided on the inner side wall of each snap.

[0013] In some embodiments, both ends of each of the card boards are respectively connected to the protruding parts on both sides of the groove.

[0014] In some embodiments, an inner container is hermetically connected inside the outer shell, and a plurality of independent accommodating cavities are provided inside the inner container, and a heat preservation gap is formed between the inner container and the inner wall of the outer shell.

[0015] In some embodiments, a convex ring extending downward is connected to the bottom of the box body, and the bottom of the drain hole is higher than the convex ring.

[0016] In summary, compared with the prior art, a snap - hidden lunch box of the present application has the following advantages: when the lid and the box body of the snap - hidden lunch box are in a connected state, the snap is accommodated in the groove of the outer shell of the box body and the outer side wall of the snap is flush with the outer side wall of the box body, so as to avoid the snap protruding from the surface of the box body, making the snap a hidden design, thus making the overall structure of the lunch box more compact, avoiding the snap being damaged by collision, and having high use safety. In addition, the protruding parts between the grooves are hollow, and an opening is formed at the upper end of the protruding parts, which is convenient for mold demolding. Moreover, the design of the hollow protruding parts reduces the weight of the box body, making the overall weight of the lunch box light and convenient to carry; especially, a drain hole communicating with the inside of the protruding part is provided at the bottom of the protruding part. It is not difficult to understand that although the insert at the opening at the top of the protruding part and the inside of the opening are in a sealed fit relationship, under the action of the hot air inside the lunch box and when the lunch box is being washed, it is inevitable that water will enter the protruding part through the gap between the insert and the inner wall of the opening. However, the water entering the protruding part can quickly flow out through this drain hole, thus avoiding water accumulation in the protruding part and preventing the growth of bacteria, so that the lunch box is hygienic and has good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a snap - hidden lunch box of the present application.

[0018] Figure 2 is a schematic bottom structural diagram of a snap - hidden lunch box of the present application.

[0019] Figure 3 is a schematic assembly structural diagram of a snap - hidden lunch box of the present application.

[0020] Figure 4 is a schematic connection structural diagram of an insert of a box body of a snap - hidden lunch box of the present application.

[0021] Figure 5 is a schematic bottom structural diagram of a box body of a snap - hidden lunch box of the present application.

[0022] Figure 6It is a schematic structural diagram of another embodiment of a snap - hidden lunch box of the present application.

[0023] Figure 7 It is a schematic assembly structure diagram of another embodiment of a snap - hidden lunch box of the present application.

[0024] Figure 8 It is a schematic diagram of the bottom structure of the box body of another embodiment of a snap - hidden lunch box of the present application.

[0025] Explanation of reference numerals:

[0026] 1. Lid, 100. Snap, 101. Vent hole, 102. Notch, 103. Block, 2. Box body, 200. Groove, 201. Protrusion, 202. Opening, 203. Drain hole, 204. Cardboard, 205. Card table, 206. Inner liner, 207. Accommodation cavity, 208. Support rib, 209. Convex ring, 210. Pad, 3. Insert. Detailed implementation manners

[0027] The following further describes the present application in detail with reference to the drawings and specific embodiments.

[0028] In the description of the embodiments of the application, it should be understood that the orientation or positional relationships indicated by the terms "horizontal", "longitudinal", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "top", "bottom", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0030] In the present application, unless otherwise clearly specified and limited, terms such as "installation", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0031] See Figures 1 to 5As shown; the embodiment of the present application discloses a buckle hidden lunch box, which structure includes a box body 2 and a box cover 1 connected to the box body 2, the box cover 1 is provided with an exhaust hole 101, the box cover 1 is circumferentially connected with a plurality of buckles 100, the outer wall of the outer shell of the box body 2 is circumferentially provided with a plurality of grooves 200 corresponding to the buckles 100, the buckles 100 are snapped into the grooves 200, and the outer wall of the buckle 100 is flush with the outer wall of the box body 2. Specifically, in the embodiment of the present application, the box body 2 and the box cover 1 are respectively arranged in a rectangular shape as a whole, and the buckles 100 are rotatably connected to the four side walls of the box cover 1 through a rotating shaft; the box body 2 includes an outer shell and an inner liner 206 sealed and connected to the outer shell, and the inner liner 206 is provided with a plurality of independent accommodating chambers 207, and a heat preservation gap is formed between the inner liner 206 and the inner wall of the outer shell. The four side walls of the shell are respectively provided with grooves 200 corresponding to the four buckles 100. When the box cover 1 and the box body 2 are in the connected state, the buckles 100 are accommodated in the grooves 200 of the shell of the box body 2 and the outer side walls of the buckles 100 are flush with the outer side walls of the shell of the box body 2. This prevents the buckles 100 from protruding from the surface of the box body 2, making the buckles 100 a hidden design, thereby making the overall structure of the lunch box more compact, preventing the buckles 100 from being damaged by collision, and having high safety in use.

[0032] It is not difficult to understand that, in the above embodiment, the outer shell of the box body 2 is made by demolding, and the groove 200 is formed on the outer side wall of the outer shell; specifically, a hollow protrusion 201 is formed on the outer shell between adjacent grooves 200. In other words, a groove 200 for accommodating and engaging the buckle 100 is formed between two adjacent hollow protrusions 201; further, in the present embodiment, the protrusion 201 and the outer shell are an integral injection molding structure, and an inner cavity of the protrusion 201 is formed between the protrusion 201 and the outer side wall of the outer shell. Since the protrusion 201 is a hollow structure, in order to facilitate mold demolding, an opening 202 that is connected to the protrusion 201 is formed at the top of the protrusion 201, so that the mold core can be easily pulled out from the opening 202 during demolding; an insert 3 that closes the opening 202 is connected to the opening 202, and the size and shape of the insert 3 are matched with the size and shape of the opening 202. The insert 3 is a plastic part or a silicone part, which is generally fixed to the inner wall of the opening 202 by bonding.

[0033] In the above embodiment, the design of the hollow protrusion 201 can not only save materials, reduce the weight of the box body 2, and facilitate carrying the lunch box, but also the hollow protrusion 201 can improve the mechanical strength of the box body 2 as well as the heat preservation performance and scalding protection of the box body 2.

[0034] It can be understood that the insert 3 and the opening 202 of the protrusion 201 are assembled; when installing the insert 3, gaps will inevitably occur, or gaps between the edge of the insert 3 and the inner wall of the opening 202 will also occur due to extrusion, aging during long-term use, etc.; therefore, under the action of the heat of the food in the lunch box or during the process of cleaning the lunch box, water will enter the inner cavity of the protrusion 201 through the gap between the edge of the insert 3 and the inner wall of the opening 202. If this water is not drained in time, it is bound to breed bacteria and cause mildew, thus endangering human health.

[0035] In this embodiment, referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 as shown, a drain hole 203 communicating with the inside of the protrusion 201 is provided at the bottom of the protrusion 201. The setting of this drain hole 203 enables the water entering the protrusion 201 to flow out quickly through the drain hole 203, thereby avoiding water accumulation in the protrusion 201 and preventing the breeding of bacteria, so that the lunch box is hygienic and has good safety.

[0036] Furthermore, in this embodiment, referring to Figure 4 as shown, a plurality of support ribs 208 extending along the height direction of the protrusion 201 are provided on the inner wall of the protrusion 201, and the bottom of the insert 3 abuts against the upper ends of the support ribs 208. When installing the insert 3, the top of the support rib 208 abuts against the bottom of the insert 3 to limit the installation depth of the insert 3. Generally, the top of the insert 3 and the top of the protrusion 201 are on the same horizontal plane; the setting of the support rib 208 not only improves the mechanical strength of the protrusion 201, but also makes the installation of the insert 3 very convenient and fast.

[0037] In this embodiment, in order to enable the drain hole 203 to quickly drain the water in the protrusion 201; referring to Figure 2 and Figure 5 as shown, the lower end of the protrusion 201 is set as an arc that is wider at the top and narrower at the bottom, and the drain hole 203 is provided at the lower end of the arc. That is, the bottom of the inner cavity of the protrusion 201 is a structure that is larger at the top and smaller at the bottom, which is convenient for water to flow downward and converge and be discharged through the drain hole 203.

[0038] Furthermore, in this embodiment, referring to Figure 5 as shown, a downward-extending annular convex ring 209 is connected to the bottom of the box body 2, and the bottom of the drain hole 203 is higher than the convex ring 209. With this setting, when the box body 2 is placed on the draining platform, due to the support of the convex ring 209, the drain hole 203 is not blocked by the draining table surface, thereby accelerating the drainage of water.

[0039] In some embodiments, referring to Figure 2 and Figure 3As shown, in order to facilitate the opening of the buckle 100 and to make the side wall of the lunch box smoother and more integral, each groove 200 extends along the height direction of the box body 2 and penetrates the bottom of the box body 2. The free end of the buckle 100 extends downward along the length direction of the groove 200 to the bottom of the box body 2. That is, in this embodiment, the free end of the buckle 100 extends downward to the bottom of the box body 2, which facilitates the opening of the buckle 100. Moreover, the outer side wall of the buckle 100 forms the outer peripheral wall of the lunch box, making the lunch box more integral and the structure more compact.

[0040] Further, in order to facilitate the opening of the buckle 100, refer to Figure 3 As shown, a concave notch 102 is provided at the bottom of each buckle 100. The notch 102 can facilitate the insertion of the user's finger, thus making the opening operation of the buckle 100 simpler, more convenient and labor-saving.

[0041] Exemplarily, refer to Figure 2 and Figure 3 As shown, a horizontally arranged clamping plate 204 is connected in each groove 200. The two ends of each clamping plate 204 are respectively connected to the protruding parts 201 on both sides of the groove 200; a clamping platform 205 extending downward is arranged on the outer edge of the clamping plate 204, and two clamping blocks 103 mating with the clamping platform 205 are arranged on the inner side wall of each buckle 100. When the buckle 100 is clamped in the groove 200 of the box body 2, the two clamping blocks 103 on the buckle 100 are elastically clamped on the clamping platform 205 of the clamping plate 204, and the clamping cooperation between the clamping platform 205 and the two clamping blocks 103 makes the clamping between the buckle 100 and the clamping plate 204 more firm and stable.

[0042] In order to improve the sealing performance between the box cover 1 and the box body 2, an annular groove for the top of the box body 2 to be embedded is provided in the box cover 1, and an annular sealing body is connected in the annular groove. When the top of the box body 2 is inserted into the annular groove, it abuts against the annular sealing body for sealing; further, a plurality of protruding pads 210 are provided on the outer side wall of the top of the box body 2, and the pads 210 can make the cooperation between the top of the box body 2 and the annular groove closer.

[0043] Refer to Figure 6 、 Figure 7 and Figure 8 As shown, it is a buckle-hidden lunch box according to another embodiment of the present application. Its box cover 1 and box body 2 are respectively arranged in a cylindrical shape; in this embodiment, four protruding parts 201 are provided on the box body 2, and a groove 200 for the buckle 100 to be clamped is formed between two adjacent protruding parts 201; correspondingly, four buckles 100 are provided on the box cover 1 and are evenly distributed along the circumferential direction; an insert 3 is connected at the top opening 202 of each protruding part 201, and a drain hole 203 is provided at the bottom of each protruding part 201. For the other structures of the lunch box in this embodiment, refer to the lunch box structure of the above embodiment, and no repeated description is made in this embodiment.

[0044] In other embodiments, the box body 2 and the box cover 1 of the lunch box may also be of other shapes, such as polygons or ellipses, and the number of the protruding parts 201 may be set according to the size of the box body 2 or the user's needs.

[0045] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0046] As mentioned above, only the specific implementation manners of the present application are described, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A snap - hidden lunch box, characterized in that: It includes a box body and a box cover connected to the box body. A plurality of buckles are circumferentially and rotatably connected to the box cover. A plurality of grooves corresponding to the buckles are provided along the circumferential direction on the outer side wall of the outer shell of the box body. The buckles are snap-fitted in the grooves, and the outer side wall of the buckle is flush with the outer side wall of the box body. A hollow protrusion is formed on the outer shell between adjacent grooves, and an opening is formed at the top of the protrusion. An insert for closing the opening is connected at the opening, and a drain hole communicating with the inside of the protrusion is provided at the bottom of the protrusion.

2. The snap - hidden lunch box according to claim 1, characterized in that: Each of the grooves extends along the height direction of the box body and penetrates the bottom of the box body. The free end of the buckle extends downward along the length direction of the groove to the bottom of the box body.

3. The snap-connection hidden lunch box according to claim 2, wherein: Each of the bottoms of the buckles is provided with an inward concave notch.

4. The snap-connection hidden lunch box according to claim 1, wherein: A plurality of support ribs extending along the height direction of the protrusion are provided on the inner wall of the protrusion, and the bottom of the insert abuts against the upper ends of the support ribs.

5. The snap-connection hidden lunch box according to claim 1, wherein: The protrusion and the outer shell are an integrally injection-molded structure, and an inner cavity of the protrusion is formed between the protrusion and the outer side wall of the outer shell.

6. The snap-connection hidden lunch box according to claim 5, wherein: The lower end of the protrusion is set as an arc that is wider at the top and narrower at the bottom, and the drain hole is provided at the lower end of the arc.

7. The snap - hidden lunch box according to claim 1, characterized in that: A horizontally arranged clamping plate is connected in the groove. A clamping platform extending downward is provided at the outer edge of the clamping plate. Two clamping blocks mating with the clamping platform are provided on the inner side wall of each buckle.

8. The snap-hidden lunch box according to claim 7, wherein: Both ends of each clamping plate are respectively connected to the protrusions on both sides of the groove.

9. The snap - hidden lunch box according to claim 1, wherein: An inner container is hermetically connected inside the outer shell, and a plurality of independent accommodating cavities are provided inside the inner container. A heat preservation gap is formed between the inner container and the inner wall of the outer shell.

10. The snap - hidden lunch box according to claim 1, characterized in that: A convex ring extending downward is connected to the bottom of the box body, and the bottom of the drain hole is higher than the convex ring.

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