Lunch box convenient to carry

Abstract

The utility model discloses a portable lunch box which comprises a plurality of layers of lunch boxes, an upper gland and a bottom support which are stacked together, the upper gland is buckled on the top of the lunch box on the uppermost layer, a bridle is fixed in the middle of the upper surface of the upper gland through a lock assembly, and limiting holes are formed in the two sides of the upper gland respectively. The bottom support wraps the bottom of the lunch box on the lowermost layer, the middle of the bridle upwards penetrates out of the lock assembly and forms an annular hand lifting part, and the two ends of the bridle correspondingly penetrate through the limiting holes in the two sides along the upper surface of the upper pressing cover, then extend downwards and are detachably connected to the two sides of the bottom support correspondingly. According to the lunch box, a plurality of layers of lunch boxes which are stacked together can be kept stable and cannot topple and slip, the lunch box is very convenient to assemble and disassemble, each layer of lunch box can be independently used after being disassembled, the heat preservation and fresh keeping effects are not influenced, and the lunch box meets the food hygiene condition; in addition, the ring-shaped lifting handle part is formed by the bridle, so that the handle is convenient to carry, and the carrying is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lunch boxes, in particular to a lunch box which is easy to carry. Background Art

[0002] Lunch boxes are common household items, typically used to hold food (e.g., dishes, staple foods, fruits, etc.). With the continuous improvement of living standards, people have gradually become accustomed to keeping dishes (e.g., vegetables, meat) and staple foods (e.g., rice) separate. This requires the use of at least two lunch boxes: one for dishes and another for staple foods. For ease of portability, these two lunch boxes are often stacked together. How to keep the stacked boxes stable to prevent spillage of soup or water due to tipping or sliding has become a pressing issue.

[0003] To this end, the Chinese utility model patent with announcement number CN202800455U proposes a portable modular lunch box. From the technical solution disclosed therein, it can be seen that each box body is provided with threads on the outside of the upper end and the inside of the lower end. When stacked together, the fixed connection is achieved by screwing the threads, which is convenient for free combination and use; and the top of the box lid is provided with two foldable handles arranged opposite to each other. After the two handles are folded toward the center and closed, it can be carried.

[0004] However, since the boxes need to be fixed together by screwing the threads, the operation is very inconvenient. In addition, since all the boxes share one lid, after disassembly, the only lid can only be assembled with one of the boxes, while the other boxes are open. Therefore, it is not conducive to heat preservation and freshness preservation, and does not meet food hygiene requirements. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects and shortcomings of the prior art and provide a lunch box that is easy to carry, so that several layers of lunch boxes stacked together can remain stable and will not fall over or slip, and are very convenient to assemble and disassemble. Each layer of lunch box can be used independently after disassembly, without affecting the heat preservation and freshness preservation effects, and meeting food hygiene conditions; in addition, the annular handle derived from the strap is easy to carry by hand, so as to facilitate carrying.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A lunch box that is easy to carry, comprising several layers of lunch boxes stacked together, an upper pressing cover and a bottom support, characterized in that: the upper pressing cover is buckled on the top of the uppermost lunch box, the middle part of the upper surface of the upper pressing cover is fixed with a strap through a lock assembly, and limiting holes are respectively provided on both sides of the upper pressing cover, and the bottom support is covered on the bottom of the lowest lunch box, the middle part of the strap passes through the lock assembly upward and forms an annular handle, and the two ends of the strap pass through the limiting holes on both sides along the upper surface of the upper pressing cover respectively, extend downward and are respectively detachably connected to the two sides of the bottom support.

[0008] Furthermore, the two-layer lunch box, the upper pressure cover and the bottom support are all circular structures, and each layer of the lunch box includes a box body with an open upper end and an end cover sealed and fastened to the upper end of the box body, and the upper surface of the end cover is concave downward and forms a recessed portion; the outer diameter of the upper pressure cover is equal to the inner diameter of the recessed portion, and the inner diameter of the bottom support is equal to the outer diameter of the bottom of the box body.

[0009] Furthermore, the limiting holes on both sides are arranged in radial symmetry with respect to the upper pressure cover.

[0010] Furthermore, the middle part of the upper pressure cover is provided with a through hole running through the upper and lower surfaces thereof, and the lower surface of the upper pressure cover is provided with an integrally connected annular limit seat around the through hole, the inner diameter of the annular limit seat is larger than the inner diameter of the through hole, and the inner wall of the annular limit seat is provided with a plurality of integrally connected first buckles, and the outer wall of the annular limit seat is provided with a plurality of first grooves, and the plurality of first buckles and the plurality of first grooves are distributed at intervals along the circumference of the annular limit seat.

[0011] Furthermore, the lock assembly includes a lock head, a lock sleeve and a lock cover, the lock head includes a stepped base and a convex column that are integrally connected, the outer diameter of the lower part of the stepped base is equal to the inner diameter of the annular limit seat, the lower part of the stepped base is respectively provided with a plurality of second card grooves distributed at intervals along its circumference, the plurality of second card grooves are respectively matched with the plurality of first buckles, the lower part of the stepped base is inserted from bottom to top and fixed inside the annular limit seat, the outer diameter of the upper part of the stepped base is equal to the inner diameter of the through hole, and Inserted into the through hole from bottom to top, the outside of the boss is provided with an external thread section, and there is a gap between the external thread section and the stepped base for the strap to pass through, and the two sides of the boss are respectively provided with through-slots that are staggered and have notches facing opposite directions; the inner wall of the locking sleeve is provided with an internal thread, and is screwed onto the outside of the thread section through threaded cooperation, and the inner wall of the lock cover is provided with a plurality of second buckles distributed at intervals along its circumference, and the plurality of second buckles are respectively matched with the plurality of first slots one by one, and the lock cover is fixed to the outside of the annular limit seat.

[0012] Furthermore, the middle part of the strap is respectively inserted into the through slots on both sides, and the two ends of the strap first pass through the two sides of the gap respectively, and then pass through the limiting holes on both sides along the upper surface of the upper pressure cover respectively; the bottom edge of the locking sleeve is pressed against the strap.

[0013] Furthermore, the base includes a support plate and a retaining ring integrally connected to the four sides of the support plate, and an opening penetrating the upper and lower surfaces of the support plate is provided in the middle of the support plate.

[0014] Furthermore, the two sides of the retaining ring respectively have integrally connected ears, and the ears on both sides are radially symmetrically arranged with respect to the retaining ring; the two ends of the strap respectively have integrally connected buckles, and the buckles at both ends are respectively hung on the ears on both sides.

[0015] Furthermore, the bottom of the support plate is provided with a plurality of spaced feet along its circumference, and the outer side of the retaining ring is provided with a plurality of spaced protrusions along its circumference.

[0016] Furthermore, the inner side of the base is provided with a plurality of L-shaped grooves distributed at intervals along its circumference, each L-shaped groove extends along the upper surface of the support plate and the inner wall of the retaining ring, and each L-shaped groove is clamped with an L-shaped connecting piece, and the plurality of pads and the plurality of protrusions are respectively and integrally connected to the lower end and the upper end of the plurality of L-shaped connecting pieces, each pad passes through the support plate and extends out, and each protrusion passes through the retaining ring and extends out.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model adopts an upper pressing cover to buckle and compress the uppermost layer of lunch boxes from the upper side, and adopts a bottom support to cover and support the lowermost layer of lunch boxes. At the same time, a strap fixed to the upper pressing cover by a lock assembly and detachable from the bottom support is adopted to connect the upper pressing cover and the bottom support, so that the stacked layers of lunch boxes can remain stable and will not fall over or slip, and the assembly and disassembly are very convenient. The lunch boxes of each layer can be used independently after being disassembled, without affecting the heat preservation and freshness preservation effects, and meeting food hygiene conditions. In addition, the annular handle derived from the strap is convenient for hand-carrying, thereby being easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 This is a schematic structural diagram of a single lunch box in the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the upper cover, lock and strap in the utility model Figure 1 .

[0022] Figure 4 This is a schematic diagram of the structure of the upper cover, lock and strap in the utility model Figure 2 .

[0023] Figure 5 It is a structural schematic diagram of the upper pressure cover in the utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the bottom support in the utility model Figure 1 .

[0025] Figure 7 This is a schematic diagram of the structure of the bottom support in the utility model Figure 2 .

[0026] Figure 8 It is a structural diagram of the lock assembly in the present utility model.

[0027] Figure 9 It is a structural diagram of the lock in the utility model.

[0028] Figure 10 It is a structural schematic diagram of the locking cover in the utility model.

[0029] Figure 11 This is a structural diagram of the foot, protrusion and L-shaped connecting piece in the utility model. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-11 A lunch box that is easy to carry includes two layers of lunch boxes 1 and 2 stacked together, an upper pressing cover 3 and a bottom support 4. The upper pressing cover 3 is buckled on the top of the upper lunch box 1, and the middle part of the upper surface of the upper pressing cover 3 is fixed with a strap 6 through a lock assembly 5. Limiting holes 7 are respectively provided on both sides of the upper pressing cover 3. The bottom support 4 is covered on the bottom of the lower lunch box 2. The middle part of the strap 6 passes through the lock assembly 5 upward and forms a ring-shaped handle 8. The two ends of the strap 6 pass through the limiting holes 7 on both sides along the upper surface of the upper pressing cover 3, extend downward and are respectively detachably connected to the two sides of the bottom support 4.

[0032] In the present invention, the two-layer lunch boxes 1, 2, the upper pressure cover 3 and the bottom support 4 are all circular structures. Each layer of the lunch box includes a box body 9 with an open upper end and an end cover 10 sealed and buckled on the upper end of the box body 9. Each layer of the lunch box can be used independently after disassembly, which does not affect the heat preservation and freshness preservation effect and meets food hygiene conditions; the upper surface of the end cover 10 is concave downward and forms a recessed portion 11, which is conducive to the mutual position limitation of the two layers of lunch boxes 1 and 2 after stacking; the outer diameter of the upper pressure cover 3 is equal to the inner diameter of the recessed portion 11, and the inner diameter of the bottom support 4 is equal to the outer diameter of the bottom of the box body 9, so that the upper pressure cover 3 can be reliably buckled on the top of the upper lunch box 1, and the bottom support 4 can be reliably covered on the bottom of the lower lunch box 2.

[0033] In the present invention, the limiting holes 7 on both sides are arranged in radial symmetry with respect to the upper pressure cover 3 , which is conducive to uniform stress on the strap 6 .

[0034] In the present utility model, a through hole 12 is provided in the middle of the upper pressure cover 3 which passes through its upper and lower surfaces. The lower surface of the upper pressure cover 3 is provided with an integrally connected annular limit seat 13 around the through hole 12. The inner diameter of the annular limit seat 13 is larger than the inner diameter of the through hole 12. The inner wall of the annular limit seat 13 is respectively provided with three integrally connected first buckles 14, and the outer wall of the annular limit seat 13 is respectively provided with three first card grooves 15. The three first buckles 14 and the three first card grooves 15 are distributed at intervals along the circumference of the annular limit seat 13.

[0035] In the present utility model, the lock assembly 5 includes a lock head 16, a lock sleeve 17 and a lock cover 18. The lock head 16 includes a stepped base 19 and a boss 20 that are integrally connected. The outer diameter of the lower part of the stepped base 19 is equal to the inner diameter of the annular limit seat 13. The lower part of the stepped base 19 is respectively provided with three second card grooves 21 distributed at intervals along its circumference. The three second card grooves 21 correspond to the three first buckles 14 one by one. The lower part of the stepped base 19 is inserted from bottom to top and fixed to the inside of the annular limit seat 13, so as to achieve the fixation of the lock head 16. The outer diameter of the upper part of the stepped base 19 is equal to the inner diameter of the through hole 12. And inserted into the through hole 12 from bottom to top, the outside of the boss 20 has an external thread section 22, and there is a gap 23 between the external thread section 22 and the stepped base 19 for the strap 6 to pass through, and the two sides of the boss 20 are respectively provided with staggered through-slots 24 with notches facing opposite directions; the inner wall of the locking sleeve 17 is provided with an internal thread, and is screwed onto the outside of the threaded section 22 through threaded cooperation, and the inner wall of the lock cover 18 is respectively provided with three second buckles 25 distributed at intervals along its circumference, and the three second buckles 25 are respectively matched with the three first slots 15 one by one, and the lock cover 18 is fixed to the outside of the annular limit seat 13, so as to play the role of limiting the lock head 16.

[0036] In the present invention, the middle part of the strap 6 is respectively inserted into the through slots 24 on both sides, and the two ends of the strap 6 first pass through the two sides of the gap 23 respectively, and then pass through the limiting holes 7 on both sides along the upper surface of the upper cover 3; the bottom edge of the locking sleeve 17 is pressed against the strap 6, so as to achieve fixing the strap 6 to the middle part of the upper surface of the upper cover 3.

[0037] In the present invention, the bottom support 4 includes a support plate 26 and a retaining ring 27 integrally connected to the four sides of the support plate 26. The middle part of the support plate 26 is provided with an opening 28 running through the upper and lower surfaces thereof, so that it is convenient for the fingers to press upward the lower lunch box 2, thereby facilitating the removal of the lower lunch box 2 from the bottom support 4.

[0038] In the present invention, both sides of the retaining ring 27 are provided with integrally connected hanging ears 29, and the hanging ears 29 on both sides are radially symmetrically arranged with respect to the retaining ring 27, so as to facilitate uniform force on the strap 6; both ends of the strap 6 are provided with integrally connected hooks 30, and the hooks 30 at both ends are respectively hung on the hanging ears 29 on both sides, so as to realize the detachable connection of the two ends of the strap 6 to the two sides of the base 4.

[0039] In the present invention, the bottom of the support plate 26 is provided with four spaced feet 31 along its circumference, which can prevent the lunch box from slipping when placed on the table. The outer side of the retaining ring 27 is provided with four spaced protrusions 32 along its circumference, which can prevent the lunch box from shaking to a certain extent when carried.

[0040] In the present invention, the inner side of the base 4 is provided with four L-shaped grooves 33 distributed at intervals along its circumference, and each L-shaped groove 33 extends along the upper surface of the support plate 26 and the inner wall of the retaining ring 27, and each L-shaped groove 33 is clamped with an L-shaped connector 34, and the four pads 31 and the four protrusions 32 are respectively and integrally connected to the lower end and the upper end of the four L-shaped connectors 34, so as to facilitate manufacturing. Each pad 31 passes through the support plate 26 and extends out, and each protrusion 32 passes through the retaining ring and extends out, so as to realize the assembly of each pad 31 and the protrusion 32.

[0041] The present invention will be further described below with reference to the accompanying drawings:

[0042] During assembly, first stack the lunch boxes 1 and 2 together, then press the upper cover 3 into the recessed portion 11 on the upper surface of the end cover 10 of the upper lunch box 1, and place the box body 9 of the upper lunch box 1 into the bottom support 4.

[0043] Then, the hooks 30 at both ends of the strap 6 are respectively mounted on the hooks 29 at both sides of the retaining ring 27. At this point, the lunch boxes 1 and 2 can be stably assembled together without tipping over or slipping off.

[0044] After the assembly is completed, the annular carrying portion 8 can be conveniently carried.

[0045] It should be noted that, during the assembly process, by loosening and unscrewing the locking sleeve 17, adjusting the strap 6, and adjusting the effective circumference of the annular handle 8, the effective length of the extended portion of the strap 6 can be adjusted to adapt to the change in the distance between the upper cover 3 and the base 4 caused by different numbers of lunch boxes stacked together.

[0046] When disassembling, remove the hooks 30 at both ends from the ears 29 on both sides respectively, separate the strap 6 and the bottom bracket 4, and then remove the upper cover 3 and the bottom bracket 4 respectively. Then separate the two layers of lunch boxes 1 and 2, and each lunch box can be used independently without affecting the heat preservation and freshness preservation effects, which meets food hygiene conditions.

[0047] It should be noted that, under normal circumstances, the upper cover 3, the bottom support 4, the lock assembly 5 and the end cover 10 are all plastic parts, the box body 9 is a glass part, and the strap 6, the foot 31, the protrusion 32 and the L-shaped connector 34 are all silicone parts or rubber parts.

[0048] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0049] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent modifications made according to the scope of the claims of the present application are within the scope of protection of the claims of the present application.

Claims

1. A portable lunch box comprising a plurality of stacked lunch boxes, an upper cover, and a bottom support, characterized in that: The upper pressing cover is buckled on the top of the uppermost lunch box, and a strap is fixed to the middle part of the upper surface of the upper pressing cover through a lock assembly. Limiting holes are respectively provided on both sides of the upper pressing cover. The bottom support is covered on the bottom of the lowermost lunch box. The middle part of the strap passes through the lock assembly upward and forms a ring-shaped handle. The two ends of the strap pass through the limiting holes on both sides along the upper surface of the upper pressing cover respectively, extend downward and are respectively detachably connected to the two sides of the base support.

2. The portable lunch box according to claim 1, characterized in that: The two-layer lunch box, upper pressure cover and bottom support are all circular structures. Each layer of the lunch box includes a box body with an open upper end and an end cover sealed and fastened to the upper end of the box body. The upper surface of the end cover is concave downward and forms a recessed portion; the outer diameter of the upper pressure cover is equal to the inner diameter of the recessed portion, and the inner diameter of the bottom support is equal to the outer diameter of the bottom of the box body.

3. The portable lunch box according to claim 2, characterized in that: The limiting holes on both sides are arranged in radial symmetry with respect to the upper pressure cover.

4. The portable lunch box according to claim 2, characterized in that: A through hole is provided in the middle of the upper pressure cover which passes through the upper and lower surfaces thereof. The lower surface of the upper pressure cover is provided with an integrally connected annular limit seat around the through hole. The inner diameter of the annular limit seat is larger than the inner diameter of the through hole. The inner wall of the annular limit seat is provided with a plurality of integrally connected first buckles, and the outer wall of the annular limit seat is provided with a plurality of first slots. The plurality of first buckles and the plurality of first slots are distributed at intervals along the circumference of the annular limit seat.

5. The portable lunch box according to claim 4, characterized in that: The lock assembly includes a lock head, a lock sleeve and a lock cover. The lock head includes a stepped base and a convex column that are integrally connected, the outer diameter of the lower part of the stepped base is equal to the inner diameter of the annular limit seat, and the lower part of the stepped base is respectively provided with a plurality of second card grooves distributed at intervals along its circumference. The plurality of second card grooves are respectively matched with the plurality of first buckles. The lower part of the stepped base is inserted from bottom to top and fixed to the inside of the annular limit seat. The outer diameter of the upper part of the stepped base is equal to the inner diameter of the through hole, and is inserted from bottom to top. The cam is inserted into the through hole, and the outside of the convex column is provided with an external thread section. There is a gap between the external thread section and the stepped base for the strap to pass through. The two sides of the convex column are respectively provided with staggered through-slots with notches facing opposite directions; the inner wall of the locking sleeve is provided with an internal thread, and is screwed onto the outside of the thread section through threaded cooperation, and the inner wall of the locking cover is respectively provided with a plurality of second buckles distributed at intervals along its circumference, and the plurality of second buckles are respectively matched with the plurality of first slots one by one, and the locking cover is fixed to the outside of the annular limit seat.

6. The portable lunch box according to claim 5, characterized in that: The middle part of the strap is respectively inserted into the through slots on both sides, and the two ends of the strap first pass through the two sides of the gap respectively, and then pass through the limiting holes on both sides along the upper surface of the upper pressure cover respectively; the bottom edge of the locking sleeve is pressed against the strap.

7. The portable lunch box according to claim 2, characterized in that: The bottom support comprises a supporting plate and a retaining ring integrally connected to the four sides of the supporting plate. The middle of the supporting plate is provided with an opening penetrating the upper and lower surfaces thereof.

8. The portable lunch box according to claim 7, characterized in that: The two sides of the retaining ring are respectively provided with integrally connected hanging ears, and the hanging ears on both sides are radially symmetrically arranged with respect to the retaining ring; the two ends of the strap are respectively provided with integrally connected hanging buckles, and the hanging buckles at both ends are respectively hung on the hanging ears on both sides.

9. The portable lunch box according to claim 7, characterized in that: The bottom of the support plate is provided with a plurality of spaced feet along its circumference, and the outer side of the retaining ring is provided with a plurality of spaced convex points along its circumference.

10. The portable lunch box according to claim 9, characterized in that: The inner side of the base is provided with a plurality of L-shaped grooves distributed at intervals along its circumference, each L-shaped groove extends along the upper surface of the support plate and the inner wall of the retaining ring, and each L-shaped groove is clamped with an L-shaped connecting piece, and the plurality of pads and the plurality of protrusions are respectively and integrally connected to the lower end and the upper end of the plurality of L-shaped connecting pieces, each pad passes through the support plate and extends out, and each protrusion passes through the retaining ring and extends out.

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