CN214340638U - Lunch box - Google Patents

Abstract

The application discloses lunch box, including box body and lid, one of box body and lid is provided with first jack catch, another of them is provided with mobilizable first buckle, first buckle has the locking position with first jack catch joint and the unblock position that breaks away from with first jack catch, first buckle includes the buckle body and the anticreep portion and the bearing part that link to each other with the buckle body respectively, first jack catch includes the jack catch body and sets up in the spacing portion of jack catch body, at the locking position, bearing part supports with jack catch body and/or spacing portion and leans on, spacing portion is located anticreep portion one side and removes to the unblock position by the locking position by oneself with first buckle of restriction. The anti-falling part is assisted by the bearing part to share the gravity of the box body, so that stress is prevented from being concentrated on the anti-falling part, the deformation quantity of the first buckle and the first clamping jaw is reduced, and the structural strength is improved.

Description

Lunch box

Technical Field

The utility model belongs to the technical field of kitchen utensil, especially, relate to a lunch-box.

Background

Lunch boxes are used as tools for containing and carrying food and become essential articles for daily life.

Current lunch-box includes box body and lid, the box body passes through lock joint structure with the lid and realizes the joint, carry under the pulling state, there is stress concentration's problem in lock joint department, seriously influence lock joint structure's structural strength, lock joint structure is the closure for a long time, the unblock state switches, possibly cause lock joint structure's deformation, inefficacy scheduling problem, and current lunch-box has ordinary lunch-box and can self-heating formula lunch-box, no matter be the temperature of meal in the lunch-box, but also the temperature that self-heating formula lunch-box heating produced, all can transmit on the lock joint structure, the lock joint structure under the high temperature stress state can take place to warp, buckle after the deformation does not have the hand and feeds back and drops easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lunch box to avoid the stress concentration and the problem of deformation of box body and lid closure department.

The utility model discloses the technical scheme who adopts does:

the utility model provides a lunch box, includes box body and lid, the box body with one of both of the lid is provided with first jack catch, and another one of the two is provided with mobilizable first buckle, first buckle have with the closure position of first jack catch joint and with the unblock position that first jack catch breaks away from, first buckle include the buckle body and respectively with anticreep portion and the bearing part that the buckle body links to each other, first jack catch include the jack catch body and set up in the spacing portion of jack catch body the closure position, the bearing part with the jack catch body and/or spacing portion supports and leans on, spacing portion is located anticreep portion one side is in order to restrict first buckle by oneself the closure position to the unblock position removes.

The utility model provides a lunch-box still has following additional technical characterstic:

the lunch box further comprises a base, wherein a heating unit is arranged in the base, and the box body can be placed on the base in a pick-and-place manner.

One of the base and the box body is provided with a second claw, the other of the base and the box body is provided with a second buckle, and the second buckle can move to be locked with or unlocked from the second claw.

The cover body is provided with a first buckle, the box body is provided with a first clamping jaw and a second buckle, the base is provided with a second clamping jaw, the structure of the second clamping jaw is the same as that of the first clamping jaw, and the structure of the second buckle is the same as that of the first buckle, so that the first buckle and the second clamping jaw can be locked or unlocked; alternatively, the first and second electrodes may be,

the lid is provided with first jack catch, the box body is provided with first buckle and second jack catch, the base is provided with the second buckle, just first buckle with the structure of second buckle is the same, first jack catch with the structure of second jack catch is the same, so that the second buckle can with first jack catch closure or unblock.

The buckle body is provided with an avoidance hole, and one end of the claw body extends into the avoidance hole at the locking position; the bearing part is connected with the hole wall of the avoidance hole, and the bearing part is connected with the jaw body and/or the projection of the abutting surface of the limiting part in the vertical direction falls into the hole wall of the avoidance hole.

The clamping jaw comprises a clamping jaw body and is characterized in that reinforcing ribs are arranged on the clamping jaw body, the clamping jaw body is provided with a fixed end connected with the box body or the cover body and a free end opposite to the fixed end, one end of each reinforcing rib is connected with the box body, and the other end of each reinforcing rib faces the free end to extend.

The box body includes interior casing and with the shell body that interior casing links to each other, first jack catch or first buckle set up in the outside of shell body, interior casing with the insulating layer has between the shell body.

The box body is still including connecting the interior casing with the connecting wall of shell body, the one end of connecting wall with the top of interior casing links to each other, the other end to the top of shell body extends and with the inside wall butt of shell body.

The top of connecting the wall is followed the circumference interval of connecting the wall is provided with a plurality of spacing archs, the lid is provided with the extension, the lid close extremely under the state of box body, the extension insert spacing protruding with between the inner wall of shell body.

The cover body is also provided with a holding part.

Since the technical scheme is used, the utility model discloses the beneficial effect who gains does:

1. the utility model discloses in the closure position, the bearing part with the jack catch body and/or spacing portion supports and leans on, has not only increased area of contact between first buckle and the first jack catch, has avoided the stress concentration of anticreep portion department under the locking state, has reduced by a wide margin under the heated state the probability that anticreep portion became invalid, moreover the bearing part be provided with help increasing the structural strength of first buckle has reduced for a long time locking repeatedly and unblock first buckle with the in-process of first jack catch first buckle warp, the probability of inefficacy. In addition, the structure design of the lunch box in the utility model enables the lunch box to be lifted under the locking state of the first buckle and the first clamping jaw, the bearing part assists the anti-falling part to share the gravity of the box body, the stress is prevented from being completely concentrated on the anti-falling part, the deformation quantity of the first buckle and the first clamping jaw is reduced, and the structural strength is improved; first buckle when the closure position with first jack catch joint, the one end of anticreep portion supports and leans on in one side of spacing portion, and spacing portion is arranged in within the activity route of this end of anticreep portion to backstop first buckle is by oneself by closure position to unblock position removal, and the backstop cooperation of anticreep portion and spacing portion has the card to feel immediately, promotes user experience.

2. As a preferred embodiment of the utility model, the lunch box further comprises a base, a heating unit is arranged in the base, and the box body can be placed in with taking and placing the base. The heating unit through the base realizes the self-heating effect of the lunch box, and meets various requirements for portability, field survival and the like.

Furthermore, one of the base and the box body is provided with a second claw, the other of the base and the box body is provided with a second buckle, and the second buckle can move so as to be locked with or unlocked from the second claw. The locking of base and box body has been realized in the joint cooperation of second jack catch and second buckle, and the locking of lid, box body and base has been realized to cooperation first jack catch and first buckle, conveniently realizes that the whole of lunch-box is carried and is drawn.

Furthermore, the cover body is provided with a first buckle, the box body is provided with a first clamping jaw and a second buckle, the base is provided with a second clamping jaw, the structure of the second clamping jaw is the same as that of the first clamping jaw, and the structure of the second buckle is the same as that of the first buckle, so that the first buckle and the second clamping jaw can be locked or unlocked; or, the lid is provided with first jack catch, the box body is provided with first buckle and second jack catch, the base is provided with the second buckle, just first buckle with the structure of second buckle is the same, first jack catch with the structure of second jack catch is the same, so that the second buckle with first jack catch closure or unblock. The second buckle and the second clamping jaw are respectively the same as the first buckle and the first clamping jaw in structure, so that the problem of stress concentration or deformation of the locked state of the second buckle and the second clamping jaw is avoided, meanwhile, the first buckle can be locked with the second clamping jaw, and the cover body can be independently locked to the base, so that the requirements of different users are met.

3. As a preferred embodiment of the present invention, the buckle body is provided with an avoiding hole, and in the locking position, one end of the claw body extends into the avoiding hole; the bearing part is connected with the hole wall of the avoidance hole, and the bearing part is connected with the jaw body and/or the projection of the abutting surface of the limiting part in the vertical direction falls into the hole wall of the avoidance hole. The supporting position of the supporting part is limited to limit the supporting position capable of bearing the weight of the lunch box, the supporting part and the clamping jaw body and/or the limiting part are vertically projected within the hole wall range of the avoiding hole rather than outside the range, the supporting part and the anti-disengaging part transversely stretch out of the hole wall range of the avoiding hole to be distinguished, the supporting part indirectly falls onto the clamping buckle cup body at the position of the avoiding hole, the stability of bearing the weight is improved, and the structural strength of the first clamping buckle is improved.

4. As a preferred embodiment of the present invention, the claw body is provided with a reinforcing rib thereon, the claw body has a fixed end connected to the box body or the cover body, and a free end opposite to the fixed end, one end of the reinforcing rib is connected to the box body, and the other end is oriented to the free end. Promote the structural strength of first jack catch through the strengthening rib to avoid under the state of mentioning, first jack catch takes place to warp because of stress, and the extending direction of strengthening rib helps promoting the joint strength of first jack catch and box body, prevents to break.

5. As a preferred embodiment of the present invention, the box body includes an inner shell and an outer shell connected to the inner shell, the first claw or the first buckle is disposed in the outer side of the outer shell, and the inner shell and the outer shell have a thermal insulation layer therebetween. The thermal insulation performance of lunch-box has been guaranteed to the double-deck casing of box body, through the insulating layer between interior casing and the shell body, has reduced the heat transfer of the outside casing of high temperature within the interior casing, and shell body temperature is not as much as the temperature of interior casing, avoids scalding the hand.

Further, the box body is still including connecting the interior casing with the connecting wall of shell body, the one end of connecting wall with the top of interior casing links to each other, the other end to the top of shell body extends and with the inside wall butt of shell body. Above-mentioned structure makes the junction of connecting wall and shell body be located the upper portion of shell body and is close to the position of box body oral area, has reduced the shrink on the lateral wall surface of shell body to through such setting, the shrink vestige of shell body is close to the junction of box body oral area and lid, can optimize the visual effect of shrink vestige, and the weakening user is pleasing to the eye to the perception of shrink vestige, the reinforcing.

Furthermore, a plurality of limiting bulges are arranged at the top of the connecting wall along the circumferential interval of the connecting wall, the cover body is provided with an extending part, and the extending part is inserted between the limiting bulges and the inner wall of the outer shell when the cover body is covered on the box body. The cover closing position of the cover body is limited through the limiting protrusion, so that the cover body is prevented from being deviated to cause the first buckle and the first clamping jaw to be buckled, or the abutting position of the first buckle and the first clamping jaw after the buckling is changed, and the service life of the buckle is shortened.

6. As a preferred embodiment of the present invention, the cover body is further provided with a grip portion. The holding part is convenient for a user to lift the whole lunch box.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the application and not to limit the invention. In the drawings:

fig. 1 is a cross-sectional view of the lunch box according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a portion where the first buckle is clamped to the first claw according to an embodiment of the present invention, showing a state where the first buckle is in a locking position;

fig. 3 is a schematic structural view of the cover according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of the first buckle according to an embodiment of the present invention;

fig. 5 is a top view of the first buckle according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of the first buckle according to an embodiment of the present invention;

fig. 7 is a schematic structural view of the cartridge according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of the cartridge body in accordance with an embodiment of the present invention;

fig. 9 is a cross-sectional view of the cover according to an embodiment of the present invention.

Wherein the content of the first and second substances,

1-box body, 11-inner shell, 12-outer shell, 13-heat insulation layer, 14-connecting wall, 15-limiting bulge;

2-cover, 21-extension, 22-grip;

3-a first jaw, 31-a jaw body, 311-a fixed end, 312-a free end, 32-a limiting part and 33-a reinforcing rib;

4-a first buckle, 41-a buckle body, 411-a gripping part, 42-an anti-falling part, 43-a bearing part, 44-a connecting shaft and 45-an avoiding hole;

5-a base;

6-a second jaw;

7-a second buckle;

8-pivot seat, 81-shaft hole.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

First, the technical concept of the present invention will be explained. In the lunch box in the prior art, the problem of stress concentration exists in the fastening structure of the cover body and the box body in the lifting state, the structural strength of the fastening structure is seriously influenced, the fastening structure is switched between the locking state and the unlocking state for a long time, the problems of deformation, failure and the like of the fastening structure can be caused, the fastening structure under high-temperature stress can deform, and after deformation, the buckle has no hand feedback and is easy to automatically fall off.

In order to solve the above problem, as shown in fig. 1 and 2, the utility model provides a lunch box, including box body 1 and lid 2, one of box body 1 and lid 2 is provided with first jack catch 3, another one of them is provided with mobilizable first buckle 4, first buckle 4 has the locking position with first jack catch 3 joint and the unblock position that breaks away from with first jack catch 3, first buckle 4 includes buckle body 41 and the anticreep portion 42 and the supporting part 43 that link to each other with buckle body 41 respectively, first jack catch 3 includes jack catch body 31 and sets up in the spacing portion 32 of jack catch body 31, at the locking position, supporting part 43 supports with jack catch body 31 and/or spacing portion 32 and leans on, spacing portion 32 is located anticreep portion 42 one side in order to restrict first buckle 4 and removes to the unblock position by oneself from the locking position.

When the lunch box is in a locked state, the bearing part 43 is independent of the anti-falling part 42 and protrudes towards the jaw body 31, the lunch box is lifted by the first buckle 4 and the first jaw 3 in the locked state, the anti-falling part 42 is assisted by the bearing part 43 to share the gravity of the box body 1, the stress is prevented from being completely concentrated on the anti-falling part 42, the deformation quantity of the first buckle 4 and the first jaw 3 is reduced, and the structural strength is improved. It should be noted that, the present invention is not limited to the deformation of the anti-separation portion 42 during the process of pulling the lunch box for the scene that causes the deformation of the first buckle 4 and the first jaw 3, but also can be the thermal deformation during the use (the thermal mode includes heating by the temperature of the meal in the box body 1, or heating by the temperature generated by the heating unit in the lunch box), and the deformation or failure caused by the switching between the locking state and the unlocking state for a long time, specifically, in the locking position, the bearing portion 43 abuts against the jaw body 31 and/or the limiting portion 32, which not only increases the contact area between the first buckle 4 and the first jaw 3, avoids the stress concentration at the anti-separation portion 42 in the locking state, greatly reduces the probability of the anti-separation portion 42 failing in the heating state, but also helps to increase the structural strength of the first buckle 4 due to the arrangement of the bearing portion 43, the probability of deformation and failure of the first catch 4 during repeated locking and unlocking of the first catch 4 and the first pawl 3 over a long period of time is reduced. Both of the above application scenarios may cause corresponding technical problems. The bearing parts 43 can reduce the deformation of the first buckle 4 and the first claw 3 under the above-mentioned scenes.

When the first buckle 4 is in a locking position clamped with the first clamping jaw 3, the anti-falling part 42 can abut against the limiting part 32 or can not abut against the limiting part 32, the limiting part 32 is arranged in a moving path at the end of the anti-falling part 42 to stop the first buckle 4 from moving from the locking position to the unlocking position, and the anti-falling part 42 is matched with a stop of the limiting part 32 to cause a clamping and pause feeling, so that the user experience is improved; under the action of external force, the anti-disengaging part 42 can disengage the stop of the limiting part 32 and move from the locking position to the unlocking position, so that the separation of the box body 1 and the shell is completed. It should be noted that, in the present invention, whether the anti-separation portion 42 abuts against the claw body 31 at the locking position is not limited, and a gap may exist between the anti-separation portion and the claw body, or the anti-separation portion and the claw body may abut against each other.

As described above, the present application is not particularly limited to the arrangement positions of the first catch 4 and the first claw 3. In one example, the first buckle 4 is disposed on the cover 2, and the first claw 3 is disposed on the box 1. In another example, the first buckle 4 is disposed on the box body 1, and the first claw 3 is disposed on the cover body 2. Below use first buckle 4 set up in lid 2, first jack catch 3 set up in box body 1 is the example, and is right the utility model discloses do further detailed description.

The utility model does not specifically limit the movable form of the first buckle 4, and in one embodiment, the first buckle 4 is slidably connected with the cover body 2, so that the first buckle 4 slides relative to the cover body 2 to be clamped with the first claw 3; in another embodiment, a pivoting seat 8 for mounting the first buckle 4 is arranged on the cover 2 or the box 1, the first buckle 4 can rotate relative to the pivoting seat 8 to be rotationally clamped with the first jaw 3, as shown in fig. 3, 4 and 5, as a preferred embodiment of the present embodiment, the first buckle 4 is provided with a connecting shaft 44, the pivoting seat 8 is provided with a shaft hole 81 matched with the connecting shaft 44, an end of the connecting shaft 44 is provided with a chamfer for guiding the connecting shaft 44 to be inserted into the shaft hole 81, and the first buckle 4 is inserted into the shaft hole 81 through the connecting shaft 44 and rotates around the shaft to realize the rotational clamping of the first buckle 4 and the first jaw 3.

As a preferred embodiment of the present invention, as shown in fig. 2, the limiting portion 32 has an inclined surface, and the inclined surface is inclined toward the side abutting against the anti-falling portion 42 to increase the longitudinal length of the side abutting against the anti-falling portion 42 on the limiting portion 32, so that the anti-falling effect is better; meanwhile, the longitudinal length of the opposite side of the limiting part 32 abutted against the anti-falling part 42 is smaller, so that the situation that the path of the first buckle 4 is blocked by the opposite side of the limiting part 32 abutted against the anti-falling part 42 in the process that the first buckle 4 moves to the locking position to cause the unsmooth clamping process is avoided; in the process that the first buckle 4 moves to the locking position, the anti-falling part 42 can be guided by the inclined surface of the limiting part 32, and the tail end of the inclined surface is temporarily deformed to guide the side part of the limiting part 32, and finally, one side of the anti-falling part 42 is abutted and clamped with the side part of the limiting part 32, so that the clamping process of the first buckle 4 and the first clamping jaw 3 is smoother by means of the guide of the inclined surface.

As a preferred embodiment of the present invention, as shown in fig. 2 and fig. 6, the anti-separation part 42 is provided with a round corner on one side abutted against the spacing part 32, the round corner enhances the surface smoothness of the anti-separation part 42, the anti-separation part 42 contacts with the spacing part 32 through the round corner, and the inclined surface is matched to make the anti-separation part 42 guide the side part of the spacing part 32, so that the clamping process of the first buckle 4 and the first clamping jaw 3 is smoother.

As a preferred embodiment of the utility model, as shown in fig. 1, the lunch box further comprises a base 5, a heating unit is arranged in the base 5, and the base 5 is arranged in the box body 1 in a manner of being able to be taken and placed. The heating unit through the base 5 realizes the self-heating effect of the lunch box, and meets various requirements of portability, field survival and the like. The heating means of the heating unit of the present invention is not limited, and may be steam heating, water-proof stewing, or self-heating hot pot type. The specific structure of the box body 1 is different under different heating modes. For example, a steam heating lunch box needs to be provided with steam through holes in the box body 1, and if the box body is in a water-proof stewing or self-heating bag type, the bottom wall of the box body 1 needs to be sealed.

As a preferred embodiment of the present invention, as shown in fig. 1, one of the base 5 and the box body 1 is provided with a second claw 6, and the other of the base 5 and the box body is provided with a second buckle 7, and the second buckle 7 is movable to lock or unlock with the second claw 6. The locking of base 5 and box body 1 has been realized in the joint cooperation of second jack catch 6 and second buckle 7, and the locking of lid 2, box body 1 and base 5 has been realized to cooperation first jack catch 3 and first buckle 4, conveniently realizes that the whole of lunch-box is carried and is drawn. It should be noted that, the utility model discloses do not do the restriction to the mounting means of box body 1 and base 5, except above-mentioned embodiment, it can also be through lid 2 and base 5 joint in order to realize the fixed of box body 1 with box body 1 centre gripping.

In the present embodiment, the moving manner of the second buckle 7 is not limited, and similar to the moving manner of the first buckle, the second buckle may be slidably connected to the base 5 or the box body 1, or may be rotatably connected to the base 5 or the box body 1.

As a preferred embodiment of the present invention, the cover 2 is provided with a first buckle 4, the box body 1 is provided with a first jaw 3 and a second buckle 7, the base 5 is provided with a second jaw 6, the second jaw 6 has the same structure as the first jaw 3, and the second buckle 7 has the same structure as the first buckle 4, so that the first buckle 4 can be locked or unlocked with the second jaw 6; alternatively, the first and second electrodes may be,

the cover body 2 is provided with a first clamping jaw 3, the box body 1 is provided with a first buckle 4 and a second clamping jaw 6, the base 5 is provided with a second buckle 7, the first buckle 4 is identical to the second buckle 7 in structure, and the first clamping jaw 3 is identical to the second clamping jaw 6 in structure, so that the second buckle 7 can be locked or unlocked with the first clamping jaw 3.

The second buckle 7 and the second jaw 6 are respectively identical to the first buckle 4 and the first jaw 3 in structure, so that the problem of stress concentration or deformation of the locked state of the second buckle 7 and the second jaw 6 is solved, meanwhile, the first buckle 4 can be locked with the second jaw 6, and the cover body 2 can be independently locked to the base 5, so that the requirements of different users are met. It should be noted that, a single-layer box body can be clamped between the cover 2 and the base 5, multiple layers of box bodies can be stacked, each box body is provided with a claw which is clamped with the buckle of the adjacent box body 1 (or the cover 2 or the base 5), or each box body is provided with a buckle which is clamped with the claw of the adjacent box body (or the cover 2 or the base 5), and the structures of the claws and the buckles are the same as those of the first claw 3 and the first buckle 4. 12 lateral walls of the outer shell of the box body 1 are vertically arranged, namely, the included angle between the lateral walls and the horizontal plane is 90 degrees, no demolding angle exists, when the box body 1 is not required to be used, and when the cover body 2 is directly connected with the base 5, the cover body 2 is matched with the base 5 without end difference, namely, the side surface of the cover body 2 is smoothly transited with the side surface of the base 5, and the whole attractiveness is improved.

As a preferred embodiment of the present invention, as shown in fig. 2, 4 and 6, the buckle body 41 is provided with an avoiding hole 45, and in the locking position, one end of the jaw body 31 extends into the avoiding hole 45; the bearing part 43 is connected with the hole wall of the avoidance hole 45, and the projection of the bearing part 43 and the abutting surface of the claw body 31 and/or the limiting part 32 in the vertical direction falls into the hole wall of the avoidance hole 45.

The supporting position of the supporting part 43 is limited to realize the limitation of the supporting part 43 capable of supporting the gravity of the lunch box, the supporting part 43 and the claw body 31 and/or the limiting part 32 are vertically projected within the hole wall range of the avoiding hole 45 rather than outside the range, the supporting part 42 transversely extends out of the hole wall range of the avoiding hole 45 to be distinguished, the supporting part indirectly falls on the buckle cup body at the position of the avoiding hole 45, the stability of the bearing of the gravity is improved, the structural strength of the first buckle 4 is improved, and the deformation of the anti-falling part 42 is reduced.

As a preferred embodiment of the present invention, as shown in fig. 6, the buckle body 41 has a grasping portion 411 extending in a direction away from the avoiding hole 45 and the bearing portion 43, so that the user can conveniently adjust the position of the first buckle 4 through the grasping portion 411. In addition, the grip 411 extends towards a direction away from the anti-falling part 42, so that when a user buckles or unlocks the first buckle 4, a gripping area can be away from the following outer shell 12, hand scalding is prevented, and user experience is improved.

As a preferred embodiment of the present invention, as shown in fig. 7, the jaw body 31 is provided with a reinforcing rib 33, the jaw body 31 has a fixed end 311 connected to the box body 1 or the cover body 2, and a free end 312 opposite to the fixed end 311, one end of the reinforcing rib 33 is connected to the box body 1, and the other end extends toward the free end 312.

Promote the structural strength of first jack catch 3 through strengthening rib 33 to avoid under the state of lifting, first jack catch 3 takes place to warp because of stress, and the extending direction of strengthening rib 33 helps promoting the joint strength of first jack catch 3 and box body 1, prevents to break.

As a preferred embodiment of the present invention, as shown in fig. 8, the box body 1 includes an inner shell 11 and an outer shell 12 connected to the inner shell 11, the first claw 3 or the first buckle 4 is disposed outside the outer shell 12, and a heat insulation layer 13 is disposed between the inner shell 11 and the outer shell 12.

The insulating layer 13 between 11 and the shell body 12 in the interior casing can prevent the speed of heat to external diffusion within 11, has guaranteed the thermal insulation performance of lunch-box, and insulating layer 13 makes the temperature of interior casing 11 reduce to the heat conduction effect of shell body 12, and the temperature of shell body 12 is not as much as the temperature of interior casing 11, avoids scalding the hand.

As a preferred embodiment of the present invention, as shown in fig. 8, the box body 1 further includes a connecting wall 14 connecting the inner shell 11 and the outer shell 12, one end of the connecting wall 14 is connected to the top of the inner shell 11, and the other end extends to the top of the outer shell 12 and abuts against the inner side wall of the outer shell 12.

The joint of the connecting wall 14 and the outer shell 12 is positioned at the upper part of the outer shell 12 close to the opening part of the box body 1, so that the shrinkage of the outer side wall surface of the outer shell 12 is reduced, and by means of the arrangement, the shrinkage trace of the outer shell 12 is close to the joint of the opening part of the box body 1 and the cover body 2, the visual effect of the shrinkage trace can be optimized, the perception of a user to the shrinkage trace is weakened, and the attractiveness is enhanced. As a preferred example of the present embodiment, the thickness of the connecting wall 14 is 0.5mm to 1.5mm, preferably 1mm, and the connecting wall 14 within this thickness range has a better supporting effect on the top and inner side walls of the outer casing 12, and better optimizes the shrinkage phenomenon of the outer casing 12.

As a preferred embodiment of the present invention, as shown in fig. 7, 8 and 9, the top of the connecting wall 14 is provided with a plurality of limiting protrusions 15 along the circumferential interval of the connecting wall 14, the cover 2 is provided with an extending portion 21, and the extending portion 21 is inserted between the limiting protrusions 15 and the inner wall of the outer case 12 in a state where the cover 2 is closed to the case 1.

Spacing arch 15 can close the position to the lid of lid 2 and carry on spacingly to prevent that the skew of lid 2 from causing first buckle 4 and the unable lock of first jack catch 3, perhaps the support of first buckle 4 and first jack catch 3 behind the lock changes the life who reduces the buckle with the position. Under the state that lid 2 lid closed box body 1, extension 21 inserted between the inner wall of spacing arch 15 and shell body 12, first buckle 4 just aligns with first jack catch 3 along the position of axle, and convenience of customers carries out the joint to the two.

As a preferred embodiment of the present invention, as shown in fig. 9, the lid body 2 is further provided with a grip portion 22.

The grip portion 22 facilitates the user to lift the entire lunch box. It should be noted that the present invention is not limited to the form of the holding portion 22, and in an embodiment, as shown in fig. 9, the holding portion 22 is a rotating handle disposed on the cover 2, and a groove capable of hiding the holding portion 22 is further disposed on the cover 2, so that the holding portion 22 can be hidden in the groove to be flush with the surface of the cover 2 when the holding portion 22 is not used; in another embodiment, the holding portion 22 is a fixed handle disposed at the center of the top or both sides of the cover 2, and can also be used to lift the lunch box.

The utility model can be realized by adopting or using the prior art for reference in places which are not mentioned in the utility model.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A lunch box comprises a box body and a cover body, wherein one of the box body and the cover body is provided with a first clamping jaw, the other one of the box body and the cover body is provided with a movable first buckle, the first buckle is provided with a locking position clamped with the first clamping jaw and an unlocking position separated from the first clamping jaw,

first buckle include the buckle body and respectively with anticreep portion and the supporting part that the buckle body links to each other, first jack catch include the jack catch body and set up in the spacing portion of jack catch body the closure position, the supporting part with the jack catch body and/or spacing portion supports and leans on, spacing portion is located anticreep portion one side is in order to restrict first buckle by oneself the closure position to the unblock position removes.

2. The lunch box according to claim 1,

the lunch box further comprises a base, wherein a heating unit is arranged in the base, and the box body can be placed on the base in a pick-and-place manner.

3. The lunch box according to claim 2,

one of the base and the box body is provided with a second claw, the other of the base and the box body is provided with a second buckle, and the second buckle can move to be locked with or unlocked from the second claw.

4. A lunch box according to claim 3,

the cover body is provided with a first buckle, the box body is provided with a first clamping jaw and a second buckle, the base is provided with a second clamping jaw, the structure of the second clamping jaw is the same as that of the first clamping jaw, and the structure of the second buckle is the same as that of the first buckle, so that the first buckle and the second clamping jaw can be locked or unlocked; alternatively, the first and second electrodes may be,

the lid is provided with first jack catch, the box body is provided with first buckle and second jack catch, the base is provided with the second buckle, just first buckle with the structure of second buckle is the same, first jack catch with the structure of second jack catch is the same, so that the second buckle can with first jack catch closure or unblock.

5. The lunch box according to claim 1,

the buckle body is provided with an avoidance hole, and one end of the claw body extends into the avoidance hole at the locking position; the bearing part is connected with the hole wall of the avoidance hole, and the bearing part is connected with the jaw body and/or the projection of the abutting surface of the limiting part in the vertical direction falls into the hole wall of the avoidance hole.

6. The lunch box according to claim 1,

the clamping jaw comprises a clamping jaw body and is characterized in that reinforcing ribs are arranged on the clamping jaw body, the clamping jaw body is provided with a fixed end connected with the box body or the cover body and a free end opposite to the fixed end, one end of each reinforcing rib is connected with the box body, and the other end of each reinforcing rib faces the free end to extend.

7. The lunch box according to claim 1,

the box body includes interior casing and with the shell body that interior casing links to each other, first jack catch or first buckle set up in the outside of shell body, interior casing with the insulating layer has between the shell body.

8. The lunch box according to claim 7,

the box body is still including connecting the interior casing with the connecting wall of shell body, the one end of connecting wall with the top of interior casing links to each other, the other end to the top of shell body extends and with the inside wall butt of shell body.

9. The lunch box according to claim 8,

the top of connecting the wall is followed the circumference interval of connecting the wall is provided with a plurality of spacing archs, the lid is provided with the extension, the lid close extremely under the state of box body, the extension insert spacing protruding with between the inner wall of shell body.

10. A lunch box according to any one of claims 1 to 9,

the cover body is also provided with a holding part.

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