CN213096631U - Lunch box - Google Patents

Abstract

The utility model relates to a lunch box, including upper box body and lower floor's box body, upper box body assembles in lower floor's box body top, and one in upper box body bottom and lower floor's box body top is equipped with first assembly border, and another in upper box body bottom and lower floor's box body top is equipped with second assembly border and first spacing arch, and the interval sets up between first spacing arch and the second assembly border, and first assembly border can insert between first spacing arch and the second assembly border. The utility model provides a lunch box, because first spacing bellied setting, even there is certain deformation in the lunch box, also can insert first assembly border between first spacing arch and the second assembly border very easily to accomplish the assembly. Therefore, the requirement on shaping treatment in the machining process is low, the shaping labor can be saved, the production efficiency is improved, and the product quality can be improved.

Description

Lunch box

Technical Field

The utility model relates to the technical field of articles for daily use, especially, relate to a lunch-box.

Background

With the acceleration of the life rhythm of people, the lunch box becomes a daily article frequently used by office workers. The electric heating lunch box is popular with office workers due to the small and exquisite body and the convenience in carrying. In order to increase the internal capacity of the lunch box, the lunch box is usually made thin, and the lunch box is usually a plastic shell. Because the characteristic of plastic, generally after the electric heat lunch-box heats, the plastic shell can be heated and become soft to because the existence of stress when the cold state, the plastic shell can warp, and the long limit direction middle part of plastic shell is toward the indent, and can not kick-back to original shape. So when resulting in assembling the upper cassette body to lower floor's box body once more, the upper cassette body is hardly assembled on the lower floor's box body.

Therefore, after the lunch box is injected, plastic predeformation is usually carried out through a shaping tool, so that the deformation quantity of the heated electric heating lunch box after deformation is reduced. And the length of integer time and the manual work put the nonconformity of putting can all lead to the irregularity of plastic effect, lead to the lunch-box after the plastic processing its upper box body still be difficult to assemble on the lower floor box body to influence the quality of product, further influence the user and use experience.

In addition, in the process of processing and transportation, there may also be collision or other accidents that lead to the shell of lunch-box to take place to warp, and it is equally difficult to assemble the upper box body to the lower box body after the shell warp.

Therefore, how to smoothly assemble the upper box body to the lower box body becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a lunchbox that solves at least one of the above problems.

The utility model provides a lunch box, including upper box body and lower floor's box body, upper box body assemble in lower floor's box body top, upper box body bottom with one in lower floor's box body top is equipped with first assembly border, upper box body bottom with another in lower floor's box body top is equipped with second assembly border and first spacing arch, first spacing arch with the interval sets up between the second assembly border, first assembly border can insert between first spacing arch and the second assembly border.

In one embodiment, the second assembling edge and the first limiting projection are arranged on the top of the lower box body, and the tail end of the first limiting projection is closer to the upper box body relative to the tail end of the second assembling edge;

or the second assembly edge and the first limiting bulge are arranged at the bottom of the upper box body, and the tail end of the first limiting bulge is closer to the lower box body relative to the tail end of the second assembly edge.

So set up, when assembling the upper box body, first assembly border contacts first spacing arch earlier, utilizes first spacing arch to first assembly border spacing, can very easily with first assembly border card income second assembly border and first spacing protruding between to accomplish the assembly, assembly process is very smooth.

In one embodiment, the end of the first limiting protrusion is provided with a guiding part for guiding the first assembling edge to be inserted between the first limiting protrusion and the second assembling edge.

So, set up the effect that the guide part played the direction to upper box body assembly in lower floor's box body, can let first assembly border very smooth insert between first spacing arch and the second assembly border, make things convenient for the assembly of lunch-box greatly.

In one embodiment, the guide portion includes a slope surface facing the second assembling edge and inclined with respect to the second assembling edge, and the slope surface gradually gets away from the second assembling edge along the direction of the end of the first limiting protrusion.

So set up, this guide part includes the inclined plane, and the structure is very simple, and the direction is effectual, and the course of working is also simple, is favorable to controlling manufacturing cost.

In one embodiment, the inner wall of the top of the lower box body is provided with a first step surface, the first limiting bulge is arranged on the lower box body, and the first limiting bulge extends from the first step surface to the upper box body.

So set up, set up first step face and provide the setting space for first spacing arch.

In one embodiment, the number of the first limiting protrusions is two or more, and the two or more first limiting protrusions are uniformly arranged at intervals along the circumferential direction of the lower box body or the upper box body.

So set up, first spacing arch can carry out spacingly and direction to the many places at first assembly border to be favorable to inserting first assembly border between first spacing arch and the second assembly border.

In one embodiment, the first assembly edge is disposed on the upper case, and an outer surface of the first assembly edge is recessed toward an inside of the upper case with respect to an outer surface of the upper case.

So set up, first assembly border inserts more easily between second assembly border and the first spacing arch.

In one embodiment, the lunch box further comprises one or more middle box bodies arranged between the upper box body and the lower box body, and the middle box body is provided with a fourth assembling edge and a second limiting bulge, wherein the fourth assembling edge is matched with the first assembling edge;

the middle box body is further provided with a third assembling edge matched with the second assembling edge and the first limiting protrusion.

So set up, the lunch-box has bigger capacity, and the upper box body can assemble on middle box body, also can assemble on lower floor's box body. The user can select to use one or more middle box bodies according to the needs, also can not use middle box bodies, and the use is very flexible and convenient.

In one embodiment, the third assembling edge and the first assembling edge are identical in structure, the fourth assembling edge and the second assembling edge are identical in structure, and the second limiting protrusion and the first limiting protrusion are identical in structure.

By the arrangement, the lunch box is simple in structure, easy to process and good in adaptability, and when the lunch box is used, the upper box body can be assembled on the middle box body and the lower box body; the middle box body can be assembled on other middle box bodies and can also be assembled on the lower box body. The user can make different selections according to the needs, and the use is very convenient.

In one embodiment, a second step surface is arranged on the inner wall of the top of the middle box body, the second limiting protrusion is arranged on the second step surface, and the second limiting protrusion extends from the second step surface to the upper box body.

So set up, set up the second step face and provide the setting space for the spacing arch of second.

The utility model provides a lunch box, because first spacing bellied setting, insert first spacing arch and second during the assembly very easily with first assembly border between the assembly border to accomplish the assembly between upper box body and the lower floor's box body. Therefore, even if the lunch box has certain deformation, the first assembling edge can be easily inserted between the first limiting bulge and the second assembling edge, and the assembly is completed. Therefore, the requirement on shaping treatment in the machining process is low, the shaping labor can be saved, the production efficiency is improved, and the product quality can be improved.

Drawings

Fig. 1 is a schematic structural view of a lunch box according to an embodiment of the present invention;

FIG. 2 is an exploded view of the lunchbox of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a cross-sectional view of the lunchbox of FIG. 1;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

FIG. 6 is a schematic structural view of a lunch box according to another embodiment of the present invention;

FIG. 7 is an exploded view of the lunchbox of FIG. 6;

FIG. 8 is a cross-sectional view of the lunchbox of FIG. 6;

FIG. 9 is an enlarged view of a portion of FIG. 8 at C;

fig. 10 is a partial enlarged view of fig. 8 at D.

Reference numerals: 10. an upper case; 11. an exhaust hole; 20. a lower box body; 21. a first step surface; 30. a middle box body; 31. a second step surface; 40. a first assembly edge; 40', a third assembly edge; 50. a second assembly edge; 50', a fourth assembly edge; 60. a first limit protrusion; 60' and a second limiting bulge; 61. a guide portion; 611. a bevel; 70. locking; 80. locking the convex; 90. an electrical heating assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-5, the present invention provides a lunch box, which comprises an upper box 10 and a lower box 20, wherein the upper box 10 is assembled above the lower box 20. In order to make the upper box 10 can be smoothly assembled on the lower box 20, one of the bottom of the upper box 10 and the top of the lower box 20 is provided with a first assembling edge 40, the other of the bottom of the upper box 10 and the top of the lower box 20 is provided with a second assembling edge 50 and a first limiting protrusion 60, the first limiting protrusion 60 and the second assembling edge 50 are arranged at an interval, and the first assembling edge 40 can be inserted between the first limiting protrusion 60 and the second assembling edge 50.

It is understood that the first assembling edge 40 and the second assembling edge 50 are both edge portions of the box body (the upper box body 10 or the lower box body 20), that is, an edge formed by extending the outer wall of the upper box body 10 downward, or an edge formed by extending the outer wall of the lower box body 20 upward. The first and second mounting rims 40, 50 are each annular. Compared with the existing lunch box, the lunch box of the embodiment is additionally provided with the first limiting bulge 60.

Due to the arrangement of the first position-limiting protrusion 60, the first assembling edge 40 can be easily inserted between the first position-limiting protrusion 60 and the second assembling edge 50 during assembling, thereby completing the assembling between the upper case 10 and the lower case 20. In this way, even if the lunch box has a certain deformation, the first fitting edge 40 can be easily inserted between the first stopper protrusion 60 and the second fitting edge 50, thereby completing the fitting. Therefore, the requirement on shaping treatment in the machining process is low, the shaping labor can be saved, the production efficiency is improved, and the product quality can be improved.

In one embodiment, the second mounting edge 50 and the first retaining protrusion 60 are formed on the top of the lower case 20, and accordingly, the first mounting edge 40 is formed on the bottom of the upper case 10, so that the positions of the second mounting edge 50 and the first retaining protrusion 60 can be directly observed during assembly, and the first mounting edge 40 can be more easily inserted into the space between the second mounting edge 50 and the first retaining protrusion 60. Of course, in other embodiments, the other way around, that is, the second assembly edge 50 and the first limiting protrusion 60 are disposed at the bottom of the upper case 10, and the first assembly edge 40 is disposed at the top of the lower case 20, so that the assembly between the upper case 10 and the lower case 20 can be easily performed.

As shown in fig. 2, 3 and 5, the second mounting rim 50 and the first stopper protrusion 60 are provided on the top of the lower case 20, and further, the end of the first stopper protrusion 60 is closer to the upper case 10 than the end of the second mounting rim 50. It should be noted that the "end of the first limiting protrusion 60" refers to an end of the first limiting protrusion 60 away from the lower case 20, that is, an end of the first limiting protrusion 60 that is suspended. The tail end of the first limiting protrusion 60 is closer to the upper box body 10 relative to the tail end of the second assembling edge 50, when the upper box body 10 is assembled, the first assembling edge 40 contacts the first limiting protrusion 60 first, the first limiting protrusion 60 is used for limiting the first assembling edge 40, the first assembling edge 40 can be easily clamped between the second assembling edge 50 and the first limiting protrusion 60, assembling is completed, and the assembling process is very smooth.

Similarly, when the second assembling edge 50 and the first position-limiting protrusion 60 are disposed at the bottom of the upper case 10, the end of the first position-limiting protrusion 60 is closer to the lower case 20 than the end of the second assembling edge 50. It should be noted that the "end of the first limiting protrusion 60" refers to an end of the first limiting protrusion 60 away from the upper box 10, that is, an end of the first limiting protrusion 60 that is suspended in the air. The tail end of the first limiting protrusion 60 is closer to the lower-layer box body 20 relative to the tail end of the second assembling edge 50, when the upper-layer box body 10 is assembled, the first assembling edge 40 contacts the first limiting protrusion 60 first, the first limiting protrusion 60 is used for limiting the first assembling edge 40, the first assembling edge 40 can be easily clamped between the second assembling edge 50 and the first limiting protrusion 60, assembling is completed, and the assembling process is very smooth.

Further, the end of the first stopper protrusion 60 is provided with a guide portion 61, and the guide portion 61 is used to guide the first fitting edge 40 to be inserted between the first stopper protrusion 60 and the second fitting edge 50. The guide part 61 is arranged to guide the upper-layer box body 10 to be assembled on the lower-layer box body 20, so that the first assembly edge 40 can be smoothly inserted between the first limiting protrusion 60 and the second assembly edge 50, and the lunch box is greatly convenient to assemble.

Further, the guide portion 61 includes a slope 611 provided toward the second fitting edge 50 and inclined with respect to the second fitting edge 50. The inclined surface 611 is gradually away from the second fitting edge 50 toward the end of the first stopper protrusion 60. During assembly, the first assembly edge 40 contacts the inclined surface 611 first, and then moves along the inclined surface 611, so that the first assembly edge 40 can be smoothly inserted between the first limiting protrusion 60 and the second assembly edge 50, and the whole assembly process is very simple. This guide part 61 includes inclined plane 611, and the structure is very simple, and the direction is effectual, and the course of working is also simple, is favorable to controlling manufacturing cost.

As shown in fig. 2 and 3, in an embodiment, a first step surface 21 is provided on the top inner wall of the lower case 20, a first limiting protrusion 60 is provided on the lower case 20, and the first limiting protrusion 60 extends from the first step surface 21 to the upper case 10. The provision of the first step surface 21 provides a disposition space for the first stopper protrusion 60. Of course, in the embodiment where the first limiting protrusion 60 is disposed on the upper case 10, the inner wall of the bottom of the upper case 10 may also be provided with a first step surface 21, and the first limiting protrusion 60 extends from the first step surface 21 to the lower case 20.

Further, the number of the first limiting protrusions 60 is more than two, and the more than two first limiting protrusions 60 are uniformly arranged along the circumferential direction of the lower box body 20. The "first limit protrusions 60 are uniformly spaced along the circumferential direction of the lower case 20" is understood that the first limit protrusions 60 are disposed at N equal points of the circumference of the lower case 20, where N refers to the number of the first limit protrusions 60. In this manner, the first stopper protrusion 60 may stopper and guide a plurality of positions of the first fitting edge 40, thereby facilitating the insertion of the first fitting edge 40 between the first stopper protrusion 60 and the second fitting edge 50. Similarly, in the embodiment where the first limiting protrusions 60 are disposed on the upper case 10, two or more first limiting protrusions 60 are uniformly arranged along the circumferential direction of the upper case 10.

Further, the first limiting protrusion 60 is a columnar protrusion, so that the structure is simple and the processing is easy. The tail end of the first limiting protrusion 60 is arranged to be an arc-shaped end portion, so that the condition that people are hurt cannot occur, and the use is safer.

As shown in fig. 5, the first assembly edge 40 is provided to the upper case 10, and an outer surface of the first assembly edge 40 is recessed toward the inside of the upper case 10 with respect to an outer surface of the upper case 10. In this way, the first fitting rim 40 is more easily inserted between the second fitting rim 50 and the first stopper projection 60. Further, when the first assembling edge 40 is inserted between the first stopper protrusion 60 and the second assembling edge 50, the outer surface of the upper case 10 and the outer surface of the second assembling edge 50 constitute a continuous surface. By constituting a continuous surface, it is meant that there is no significant drop between the outer surface of the upper housing 10 and the outer surface of the second mounting rim 50. Further, the outer surface of the second fitting edge 50 and the outer surface of the lower case 20 also constitute a continuous surface therebetween. Therefore, the shell of the lunch box is easier to process, and the appearance of the lunch box is more beautiful. Of course, there may be a gap between the outer surface of the second assembly edge 50 and the outer surface of the upper case 10, and a gap between the outer surface of the second assembly edge 50 and the outer surface of the lower case 20.

In order to fix the lunch box, the upper case 10 is provided with a first latch 70 which can be turned, the first latch 70 is provided with a first locking groove (not shown), the lower case 20 is provided with a first locking protrusion 80, and when the first latch 70 is turned and fastened on the lower case 20, the first locking protrusion 80 can be locked into the first locking groove, so as to fix the upper case 10 on the lower case 20. It should be noted that the first locking protrusion 80 refers to a protrusion for locking. The upper case 10 can be firmly fixed to the lower case 20 by the first locking protrusion 80 and the first locking catch 70, so that the lunch box can be conveniently carried. When the upper box 10 is opened, the first lock catch 70 is turned upwards to separate the first lock protrusion 80 from the first lock groove, so that the use is very convenient.

Referring to fig. 6 to 10, in order to increase the capacity of the lunch box, the lunch box further includes one or more middle box bodies 30 disposed between the upper box body 10 and the lower box body 20. The middle box 30 is a lower box for the box above it and an upper box for the box below it, so the middle box 30 has a structure adapted to the upper box 10 and also a structure adapted to the lower box 20. Specifically, the middle case 30 is provided with a fourth fitting edge 50 'and a second stopper protrusion 60' fitted with the first fitting edge 40. The middle case 30 is further provided with a third assembling edge 40' adapted to the second assembling edge 50 and the first stopping protrusion 60. Thus, the provision of the intermediate box body 30 allows the lunch box to have a larger capacity. The upper case 10 may be mounted on the middle case 30 or may be mounted on the lower case 20. The intermediate case 30 may be mounted on another intermediate case 30 or may be mounted on the lower case 20. The user can select to use one or more middle box bodies 30 according to the requirement, or the middle box bodies 30 are not used, so that the use is very flexible and convenient.

The third assembling edge 40 ' has the same structure as the first assembling edge 40, the fourth assembling edge 50 ' has the same structure as the second assembling edge 50, and the second limiting protrusion 60 ' has the same structure as the first limiting protrusion 60, which are not repeated herein. Therefore, the lunch box is simple in structure, easy to process and good in adaptability. When in use, the upper box 10 can be assembled on the middle box 30 or the lower box 20; the intermediate case 30 may be attached to other intermediate cases 30 or may be attached to the lower case 20. The user can make different selections according to the needs, and the use is very convenient.

It will be appreciated that the third and fourth mounting edges 40 'and 50' are both edge portions of the middle case 30, that is, edges formed by extending the outer wall of the middle case 30 downward, or edges formed by extending the outer wall of the middle case 30 upward. The third and fourth mounting rims 40 'and 50' are each annular. Compared with the existing lunch box, the lunch box of the embodiment has the second limiting protrusion 60' added to the middle box body 30.

In one embodiment, as shown in fig. 7, the fourth assembling edge 50 ' and the second position-limiting protrusion 60 ' are disposed on the top of the middle box 30, and the third assembling edge 40 ' is disposed on the bottom of the middle box 30.

The position of the second stopper protrusion 60' may also be set with reference to the position of the first stopper protrusion 60. Specifically, the inner wall of the top of the middle box 30 is provided with a second step surface 31, the second limiting protrusion 60 'is provided on the second step surface 31, and the second limiting protrusion 60' extends from the second step surface 31 to the upper box 10. Similarly, the provision of the second step surface 31 provides a disposition space for the second stopper protrusion 60'.

In order to fix the upper case 10, the middle case 30 and the lower case 20, the middle case 30 is provided with a reversible second locker 70 ', and the second locker 70 ' of the middle case 30 is identical in structure to the first locker 70 of the upper case 10, and accordingly, the second locker 70 ' of the middle case 30 is also provided with a first locking groove. The middle box 30 is further provided with a second locking protrusion 80 ', and the second locking protrusion 80' on the middle box 30 has the same structure as the first locking protrusion 80 on the lower box 20. When the first latch 70 of the upper case 10 is turned over and fastened to the middle case 30, the second latch 80' can be locked into the first latch groove, thereby fixing the upper case 10 and the middle case 30. Alternatively, when the second latch 70 'of the middle box 30 is flipped over to be latched to another middle box 30 or the lower box 20, the second latch protrusion 80' can be latched into the second latch groove, so as to fix the two middle boxes 30. Alternatively, when the second latch 70' of the middle box 30 is flipped over and fastened to the lower box 20, the first latch protrusion 80 can be snapped into the second latch groove, thereby fixing the middle box 30 and the lower box 20.

Further, the upper box body 10 is provided with an exhaust hole 11 for exhausting air inside the lunch box during heating. The partition of the middle case 30 is provided with through holes for air to pass through, thereby facilitating heating of food in the lunch box.

An electric heating component 90 is arranged inside the lower box body 20, namely the lunch box is an electric heating lunch box. Of course, in other embodiments, the lunch box can be a common lunch box which is not electrically heated.

The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims (10)

1. The utility model provides a lunch box, its characterized in that, includes upper box body (10) and lower floor's box body (20), upper box body (10) assemble in lower floor's box body (20) top, upper box body (10) bottom with one in lower floor's box body (20) top is equipped with first assembly border (40), upper box body (10) bottom with another in lower floor's box body (20) top is equipped with second assembly border (50) and first spacing arch (60), first spacing arch (60) with interval setting between second assembly border (50), first assembly border (40) can insert between first spacing arch (60) and the second assembly border (50).

2. The lunch box according to claim 1, wherein the second assembling edge (50) and the first stopper projection (60) are provided on the top of the lower box (20), and the tip of the first stopper projection (60) is closer to the upper box (10) than the tip of the second assembling edge (50);

or the second assembling edge (50) and the first limiting bulge (60) are arranged at the bottom of the upper box body (10), and the tail end of the first limiting bulge (60) is closer to the lower box body (20) relative to the tail end of the second assembling edge (50).

3. The lunch box according to claim 1, wherein the first stopper protrusion (60) is provided at a distal end thereof with a guide portion (61), and the guide portion (61) is used to guide the first fitting edge (40) to be inserted between the first stopper protrusion (60) and the second fitting edge (50).

4. The lunch box according to claim 3, wherein the guide portion (61) includes a slope (611) provided obliquely with respect to the second fitting edge (50) toward the second fitting edge (50), the slope (611) gradually becoming distant from the second fitting edge (50) toward the tip of the first stopper protrusion (60).

5. The lunch box according to claim 1, wherein the inner wall of the top of the lower case (20) is provided with a first step surface (21), the first limit protrusion (60) is provided on the lower case (20), and the first limit protrusion (60) extends from the first step surface (21) to the upper case (10).

6. The lunch box according to claim 1, wherein the number of the first limit protrusions (60) is two or more, and the two or more first limit protrusions (60) are uniformly spaced in the circumferential direction of the lower case (20) or the upper case (10).

7. The lunch box according to claim 1, wherein the first assembly rim (40) is provided at the upper case (10), and an outer surface of the first assembly rim (40) is recessed toward the inside of the upper case (10) with respect to an outer surface of the upper case (10).

8. The lunch box according to any one of claims 1-7, further comprising one or more intermediate boxes (30) arranged between the upper box (10) and the lower box (20), the intermediate boxes (30) being provided with a fourth assembly edge (50 ') and a second limit projection (60') adapted to the first assembly edge (40);

the middle box body (30) is also provided with a third assembling edge (40') matched with the second assembling edge (50) and the first limiting bulge (60).

9. Lunch box according to claim 8, characterised in that the third assembly edge (40 ') is structurally identical to the first assembly edge (40), the fourth assembly edge (50 ') is structurally identical to the second assembly edge (50), and the second retention projection (60 ') is structurally identical to the first retention projection (60).

10. The lunch box according to claim 8, wherein the top inner wall of the intermediate box body (30) is provided with a second step surface (31), the second stopper protrusion (60 ') is provided on the second step surface (31), and the second stopper protrusion (60') extends from the second step surface (31) toward the upper box body (10).

Images