Warm and crisp dual-purpose packaging box

Abstract

This utility model discloses a dual-purpose (warm and crisp) packaging box, including a lid and a box body. The box body has an opening at the top for receiving cavity. The lid is detachably placed on the upper side of the box body and can cover the opening of the receiving cavity. The box body has a first mating part at the opening of the receiving cavity that mates with the lid, and the lid has a corresponding second mating part. One of the first and second mating parts has a venting recess, and the other has a corresponding blocking protrusion. The lid has a first closed state and a second closed state. The lid can be rotated by a preset angle to switch between the first and second closed states. When the lid is in the first closed state, the blocking protrusion can block the venting recess. When the lid is in the second closed state, the blocking protrusion can release the venting recess, allowing the receiving cavity to connect with the external atmosphere through the venting recess. This utility model can achieve the selection and switching between heat preservation and crispness preservation functions and is simple and convenient to operate, which helps to improve the efficiency of food preparation.

Description

Technical Field

[0001] This utility model relates to the field of box technology, and in particular to a packaging box that can withstand both warm and brittle conditions. Background Technology

[0002] Existing packaging boxes typically consist of two parts: a box body and a lid. The lid can be detachably attached to the top of the box body or rotatably connected to one side of the box body to cover the opening of the box's cavity. In the food packaging sector, such as food delivery, different types of food have different packaging performance requirements. For example, some foods need good heat retention, requiring the packaging box to have low air permeability to reduce heat loss; while other foods need to maintain a crisp texture, requiring the packaging box to have a certain degree of air permeability to allow internal moisture to escape in time and prevent the food from softening due to moisture retention. To meet these two types of needs, some existing packaging boxes have vents on the lid, with a detachable tear-off or bendable flap at the vent, or a separate plug, allowing switching between heat retention and crispness preservation functions by blocking or opening the vent. Such a dual-purpose design for both warm and crispy food is usually quite complex in structure, and after the lid is closed, the operator still needs to perform an additional function switching operation, which not only increases the cumbersomeness of the packaging process, but also reduces the efficiency of food preparation, which is not conducive to practical promotion and application. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a dual-purpose packaging box for heat preservation and crispness preservation. By changing the closing state of the lid and the box body, the venting recess can be blocked or opened, thereby achieving the switching between heat preservation and crispness preservation functions. The structure is simple, the switching operation is convenient, which helps to reduce the cumbersomeness of the packaging process and improve the efficiency of food preparation.

[0004] According to an embodiment of this utility model, a dual-purpose packaging box for both warm and brittle conditions includes a lid and a box body. The box body has an opening at the top, and the lid is detachably mounted on the upper side of the box body and can cover the opening of the receiving cavity. The box body has a first mating part that mates with the lid at the opening of the receiving cavity, and a second mating part is correspondingly provided on the side of the lid. One of the first mating part and the second mating part is provided with a venting recess, and the other is correspondingly provided with a blocking protrusion. The lid has a first closed state and a second closed state relative to the box body. The lid can rotate relative to the box body by a preset angle to switch between the first closed state and the second closed state. When the lid is in the first closed state, the blocking protrusion can block the venting recess. When the lid is in the second closed state, the blocking protrusion can release the blocking of the venting recess, allowing the receiving cavity to connect with the external atmospheric environment through the venting recess.

[0005] According to the embodiments of this utility model, the dual-purpose warm and crisp packaging box has at least the following beneficial effects: When packaging food, the food is placed in the receiving cavity of the box body, and then the lid is closed on the upper side of the box body and covers the opening of the receiving cavity. If it is required for heat preservation, the lid is closed on the box body in the first closed state. At this time, the blocking protrusion blocks the venting recess, reducing air permeability and reducing heat loss. If it is required for crisp preservation, the lid is closed on the box body in the second closed state. At this time, the blocking protrusion releases the blockage of the venting recess, allowing the receiving cavity to connect with the external atmospheric environment through the venting recess, so as to timely discharge internal moisture and prevent the food from softening due to moisture retention. This utility model has a simple and reasonable structure, enabling the packaging box to have both heat preservation and crispness preservation functions. Switching between these functions is as simple as selecting the appropriate closing state when placing the lid. The switching between the first and second closing states can be achieved by rotating the lid to change its closing position. The switching operation is convenient, and the packing personnel only need to select the appropriate closing state when packing, which helps to reduce the complexity of the packing process, improve the efficiency of food preparation, and facilitate its widespread application.

[0006] According to some embodiments of the present invention, the exhaust recess is provided on the first mating part, the shielding protrusion is provided on the second mating part, and the second mating part is also provided with an avoidance recess. When the cover is in the second closed state, the avoidance recess corresponds to the exhaust recess.

[0007] According to some embodiments of the present invention, the first mating part is arranged around the opening of the accommodating cavity, and the first mating part is provided with the exhaust recess on both the front and rear sides of the box body.

[0008] According to some embodiments of the present invention, the venting recess located on the front side of the box body and the venting recess located on the rear side of the box body are staggered in the front-back direction. The second mating part is provided with the blocking protrusion and the avoidance recess on both the front and rear sides of the cover body. The blocking protrusion and the avoidance recess located on the same side of the cover body are alternately distributed. The blocking protrusion located on the front side of the cover body and the blocking protrusion located on the rear side of the cover body are staggered in the front-back direction.

[0009] According to some embodiments of the present invention, both the cover and the box are provided with indicator marks to identify the closed state of the cover.

[0010] According to some embodiments of the present invention, a locking structure is provided between the box body and the cover body. When the cover body is in the first closed state and the second closed state, it can cooperate with the box body through the locking structure to restrict the disassembly and separation of the cover body relative to the box body.

[0011] According to some embodiments of the present invention, the locking structure includes a snap-fit ​​ear and a snap-fit ​​notch that engages with the snap-fit ​​ear. The snap-fit ​​ear is provided on both the left and right sides of the cover, and the snap-fit ​​notch is provided on both the left and right sides of the box.

[0012] According to some embodiments of the present invention, a groove is provided on the bottom side of the accommodating cavity.

[0013] According to some embodiments of the present invention, the bottom of the accommodating cavity is provided with a plurality of protrusions.

[0014] According to some embodiments of the present invention, the box body is provided with a partition in the accommodating cavity for separating the accommodating cavity.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the dual-purpose warm and brittle packaging box in the heat-insulating state according to an embodiment of the present utility model; Figure 2 for Figure 1 Exploded structural diagram of a dual-purpose packaging box for medium-temperature brittleness; Figure 3 for Figure 1 Schematic diagram of the middle cover structure; Figure 4 for Figure 1 One of the schematic diagrams of the cross-sectional structure of a dual-purpose packaging box for medium-temperature brittleness; Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure of a dual-purpose packaging box for medium-temperature brittleness (Part 2); Figure 6 This is a schematic diagram of the structure of the dual-purpose warm and brittle packaging box in the brittle preservation state according to an embodiment of the present utility model; Figure 7 for Figure 6 One of the schematic diagrams of the cross-sectional structure of a dual-purpose packaging box for medium-temperature brittleness; Figure 8 for Figure 6 Schematic diagram of the cross-sectional structure of a dual-purpose packaging box for medium-temperature brittleness (Part 2).

[0017] Figure label: Cover 100, second mating part 110, shielding protrusion 111, avoidance recess 112, indicator mark 120, and buckle ear 130; Box body 200, accommodating cavity 201, groove 202, snap-fit ​​notch 203, first mating part 210, venting recess 211, protrusion 220, partition 230. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In the description of this utility model, if words such as several, greater than, less than, exceeding, above, below, or within appear, several means one or more, multiple means two or more, greater than, less than, exceeding, etc. are understood to exclude the number itself, and above, below, or within are understood to include the number itself.

[0021] If the terms "first" and "second" are used only to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figure 1 , Figure 2 and Figure 3A dual-purpose packaging box for both warm and brittle conditions includes a lid 100 and a box body 200. The box body 200 has an upper opening for receiving cavity 201. The lid 100 is detachably fitted onto the upper side of the box body 200 and can cover the opening of the receiving cavity 201. The box body 200 has a first mating part 210 at the opening of the receiving cavity 201 that mates with the lid 100. A second mating part 110 is correspondingly provided on the side of the lid 100. One of the first mating part 210 and the second mating part 110 is provided with a venting recess 211, and the other is provided with a corresponding venting recess 211. The cover 100 has a shielding protrusion 111 and a first closed state and a second closed state relative to the box 200. The cover 100 can rotate relative to the box 200 by a preset angle to switch between the first closed state and the second closed state. When the cover 100 is in the first closed state, the shielding protrusion 111 can shield the exhaust recess 211. When the cover 100 is in the second closed state, the shielding protrusion 111 can release the shielding of the exhaust recess 211, so that the accommodating cavity 201 can connect to the external atmospheric environment through the exhaust recess 211.

[0024] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, the opening of the accommodating cavity 201 is provided with an upwardly protruding first mating part 210, and the cover 100 is correspondingly provided with a downwardly protruding second mating part 110. When packaging food, the food is placed into the accommodating cavity 201 of the box 200, and then the cover 100 is placed on the upper side of the box 200, covering the opening of the accommodating cavity 201. If heat preservation is required, refer to... Figure 1 , Figure 4 and Figure 5 When the lid 100 is in the first closed state, it covers the box 200. At this time, the packaging box is in an insulated state. The shielding protrusion 111 blocks the venting recess 211, reducing air permeability and minimizing heat loss. If brittleness preservation is required, refer to... Figure 6 , Figure 7 and Figure 8 Then, the lid 100 closes onto the box 200 in the second closed state. At this time, the packaging box is in a crisp-keeping state. The obstructing protrusion 111 releases its obstruction of the venting recess 211, allowing the accommodating cavity 201 to connect with the external atmosphere through the venting recess 211, so as to expel internal moisture in time and prevent food from softening due to moisture retention. The structure of this utility model is simple and reasonable, enabling the packaging box to have both heat preservation and crisp-keeping functions. Switching between heat preservation and crisp-keeping functions only requires selecting the corresponding closed state when closing the lid 100. The switching between the first closed state and the second closed state can be achieved by rotating the lid 100 to change the closed state of the lid 100. The switching operation is convenient. Packaging personnel only need to select the closed state of the lid 100 when packing, which helps to reduce the cumbersomeness of the packing process, improve the efficiency of food preparation, and facilitate widespread application.

[0025] In practical applications, the specific structures of the cover 100 and the box 200 can be set according to the actual needs of use. They will not be described in detail here, but will be explained in detail below.

[0026] In some embodiments, an exhaust recess 211 is provided on the first mating part 210, a blocking protrusion 111 is provided on the second mating part 110, and the second mating part 110 is also provided with a clearance recess 112. When the cover 100 is in the second closed state, the clearance recess 112 corresponds to the exhaust recess 211.

[0027] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, an exhaust recess 211 is provided on the first mating part 210, and an avoidance recess 112 is provided on the second mating part 110, so that a blocking protrusion 111 is formed on the second mating part 110. (Refer to...) Figure 1 , Figure 4 and Figure 5 In the first closed state, the blocking protrusion 111 blocks the venting recess 211, and the avoidance recess 112 is offset relative to the venting recess 211 to reduce air permeability; see reference Figure 6 , Figure 7 and Figure 8 In the second closed state, the blocking protrusion 111 is offset from the exhaust recess 211, allowing the recess 112 to correspond with the exhaust recess 211, thereby releasing the obstruction and allowing the accommodating cavity 201 to connect with the external atmospheric environment through the exhaust recess 211. Its structure is simple and easy to use. In practical applications, in addition to the above structure, the exhaust recess 211 can also be located on the second mating part 110, and the blocking protrusion 111 can be located on the first mating part 210. The specific arrangement can be changed according to actual usage needs.

[0028] Furthermore, the first mating part 210 is arranged around the opening of the accommodating cavity 201, and the first mating part 210 is provided with exhaust recesses 211 on both the front and rear sides of the box body 200.

[0029] Understandably, such as Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the first mating part 210 is arranged around the opening of the receiving cavity 201. The first mating part 210 has venting recesses 211 on both the front and rear sides of the box body 200. When the packaging box is in a fragile-preserving state, refer to... Figure 7 and Figure 8The exhaust recesses 211 on the front and rear sides of the box 200 can be used to form convection channels, further increasing air permeability and achieving a better preservation effect. In practical applications, the exhaust recesses 211 can also be set only on one side of the box 200, such as the front or rear side, which can be set according to the actual use needs.

[0030] Furthermore, the venting recess 211 located on the front side of the box body 200 and the venting recess 211 located on the rear side of the box body 200 are staggered in the front-back direction. The second mating part 110 is provided with a blocking protrusion 111 and a clearance recess 112 on both the front and rear sides of the cover body 100. The blocking protrusion 111 and the clearance recess 112 located on the same side of the cover body 100 are alternately distributed. The blocking protrusion 111 located on the front side of the cover body 100 and the blocking protrusion 111 located on the rear side of the cover body 100 are staggered in the front-back direction.

[0031] Understandably, such as Figure 2 and Figure 3 As shown, the front side of the box body 200 has three venting recesses 211, and the rear side has two venting recesses 211. The venting recesses 211 on the front side of the box body 200 and the venting recesses 211 on the rear side of the box body 200 are staggered in the front-back direction. Correspondingly, one side of the cover 100 has three blocking protrusions 111, and the other side has two blocking protrusions 111. The blocking protrusions 111 and the clearance recesses 112 on the same side of the cover 100 are alternately distributed. The blocking protrusions 111 on the front side of the cover 100 and the blocking protrusions 111 on the rear side of the cover 100 are staggered in the front-back direction. (Refer to...) Figure 4 and Figure 7 This design ensures that when the cover 100 is in the first closed state, the front and rear blocking protrusions 111 block the corresponding exhaust recesses 211. In the second closed state, the front and rear blocking protrusions 111 are offset from the corresponding exhaust recesses 211. The structure is simple, and the different closed states can be switched by rotating the cover 100 180 degrees, making it easy to use.

[0032] In practical applications, in addition to the above structure, the venting recess 211 on the front side of the box body 200 and the venting recess 211 on the rear side of the box body 200 are aligned in the front-to-back direction. Similarly, the shielding protrusion 111 on the front side of the cover 100 and the shielding protrusion 111 on the rear side of the cover 100 are also aligned in the front-to-back direction. The clearance recesses 112 on the front and rear sides of the cover 100 are also aligned in the front-to-back direction accordingly. Of course, the rotation angle required to switch between different closing states is not necessarily 180 degrees. For example, when the box body 200 is roughly cylindrical or frustum-shaped, the cover 100 is correspondingly circular. With a disc-shaped structure, simply rotating the cover 100 by a certain angle to align or offset the vent recess 211 with the blocking protrusion 111 allows for switching between different closing states. The number of vent recesses 211 can also be varied accordingly. For example, one vent recess 211 can be provided on the front side of the box 200, and two vent recesses 211 can be provided on the rear side, or four vent recesses 211 can be provided on the front side and three vent recesses 211 can be provided on the rear side. The specific arrangement of the blocking protrusion 111 and the avoidance recess 112 can be varied according to the specific arrangement of the vent recesses 211, and is not limited here.

[0033] In some embodiments, both the cover 100 and the box 200 are provided with indicator marks 120 to identify the closed state of the cover 100. It is understood that, as Figure 1 and Figure 6 As shown, both the cover 100 and the box 200 are provided with indicator marks 120, for reference. Figure 1 When the indicator marks 120 on both the lid 100 and the box 200 are on the same side (front side shown in the diagram), it can be identified that the lid 100 is in the first closed state. Figure 6 When the indicator marks 120 on the lid 100 and the box 200 are located on different sides (in the illustration, the indicator mark 120 on the box 200 is on the front side, and the indicator mark 120 on the lid 100 is on the rear side), it can be identified that the lid 100 is in the second closed state. By setting the indicator mark 120, the usage status of the packaging box can be easily identified, making it convenient to use. In practical applications, the indicator mark 120 can be color, text, pattern, etc., and can be set according to actual usage needs.

[0034] In some embodiments, a locking structure is provided between the box body 200 and the cover 100. When the cover 100 is in the first closed state and the second closed state, it can cooperate with the box body 200 through the locking structure to restrict the cover 100 from being disassembled and separated from the box body 200.

[0035] Understandably, such as Figure 1 , Figure 2 and Figure 4As shown, by setting a locking structure, when the cover 100 is closed on the box 200, the locking structure can restrict the disassembly and separation of the cover 100 relative to the box 200, thereby improving the stability of the fit between the box 200 and the cover 100, achieving a more stable closing effect, and making it convenient to use.

[0036] Specifically, the locking structure includes a latch ear 130 and a latching notch 203 that engages with the latch ear 130. The latch ear 130 is provided on both the left and right sides of the cover 100, and the latching notch 203 is provided on both the left and right sides of the box 200.

[0037] Understandably, such as Figure 1 , Figure 2 and Figure 4 As shown, the left and right sides of the lid 100 are provided with latching ears 130, and the left and right sides of the box 200 are provided with locking notches 203. When locking, the latching ears 130 on the left and right sides of the lid 100 are engaged with the locking notches 203 on the left and right sides of the box 200, thereby locking the left and right sides of the lid 100. The structure is simple and easy to use. In practical applications, in addition to the above structure, the locking structure can also include a snap fastener and a corresponding insertion hole. The snap fastener is located on the left and right sides of the box 200, and the insertion hole is located on the left and right sides of the lid 100, thereby achieving locking. Alternatively, hooks can be provided on the left and right sides of the lid 100 to hook onto the edges of the box 200 for locking. The specific design can be adjusted according to actual usage needs.

[0038] In some embodiments, a groove 202 is provided on the bottom edge of the accommodating cavity 201. It is understood that, as Figure 2 , Figure 5 and Figure 7 As shown, by providing a groove 202 at the bottom of the accommodating cavity 201, during the crisping process, the condensed water inside the accommodating cavity 201 can be collected and stored through the groove 202 at the bottom, reducing the possibility of contact with food and preventing the food from becoming wet and softened, thus achieving a better crisping effect. In practical applications, the specific shape and location of the groove 202 can be set according to actual usage needs.

[0039] In some embodiments, the bottom of the accommodating cavity 201 is provided with a plurality of protrusions 220. It is understood that, as Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the protrusions 220 are elongated structures located at the bottom of the accommodating cavity 201, and multiple protrusions 220 are arranged at intervals along the left-right direction. In the crisp-keeping mode, food is placed in the accommodating cavity 201 and supported by the multiple protrusions 220, reducing the contact area between the food and the bottom wall of the accommodating cavity 201, facilitating heat dissipation, and preventing the food from being soaked and softened by condensation at the bottom, thus achieving a better crisp-keeping effect. In practical applications, the specific shape and arrangement of the protrusions 220 can be adjusted according to actual usage needs.

[0040] In some embodiments, the housing 200 is provided with a partition 230 in the receiving cavity 201 for separating the receiving cavity 201. It is understood that, as Figure 2 , Figure 4 and Figure 7 As shown, by providing a partition 230 in the accommodating cavity 201, the accommodating cavity 201 can be divided to facilitate the separate placement of different foods and make it easier to use. In practical applications, the partition 230 can be set according to actual usage needs.

[0041] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A dual-purpose packaging box for both warm and brittle conditions, characterized in that, The device includes a lid and a box. The box has an opening at the top and a receiving cavity. The lid is detachably mounted on the upper side of the box and can cover the opening of the receiving cavity. The box has a first mating part that mates with the lid at the opening of the receiving cavity. The lid has a corresponding second mating part on its side. One of the first and second mating parts has an exhaust recess, and the other has a corresponding blocking protrusion. The lid has a first closed state and a second closed state relative to the box. The lid can rotate relative to the box by a preset angle to switch between the first and second closed states. When the lid is in the first closed state, the blocking protrusion can block the exhaust recess. When the lid is in the second closed state, the blocking protrusion can release the blockage of the exhaust recess, allowing the receiving cavity to connect with the external atmosphere through the exhaust recess.

2. The dual-purpose packaging box for both warm and brittle conditions according to claim 1, characterized in that, The exhaust recess is located at the first mating part, the shielding protrusion is located at the second mating part, and the second mating part is also provided with an avoidance recess. When the cover is in the second closed state, the avoidance recess corresponds to the exhaust recess.

3. The dual-purpose packaging box for both warm and brittle conditions according to claim 2, characterized in that, The first mating part is arranged around the opening of the accommodating cavity, and the first mating part is provided with the exhaust recess on both the front and rear sides of the box body.

4. The dual-purpose packaging box for both warm and brittle conditions according to claim 3, characterized in that, The venting recess located on the front side of the box body and the venting recess located on the rear side of the box body are staggered in the front-back direction. The second mating part is provided with the blocking protrusion and the avoidance recess on both the front and rear sides of the cover body. The blocking protrusion and the avoidance recess located on the same side of the cover body are alternately distributed. The blocking protrusion located on the front side of the cover body and the blocking protrusion located on the rear side of the cover body are staggered in the front-back direction.

5. The dual-purpose packaging box for both warm and brittle conditions according to claim 1, characterized in that, Both the lid and the box are provided with indicator marks to identify the closed / closed state of the lid.

6. The dual-purpose packaging box for both warm and brittle conditions according to claim 1, characterized in that, A locking structure is provided between the box body and the cover body. When the cover body is in the first closed state and the second closed state, it can cooperate with the box body through the locking structure to restrict the disassembly and separation of the cover body relative to the box body.

7. The dual-purpose packaging box for both warm and brittle conditions according to claim 6, characterized in that, The locking structure includes a snap-fit ​​ear and a snap-fit ​​notch that engages with the snap-fit ​​ear. The snap-fit ​​ear is provided on both the left and right sides of the cover, and the snap-fit ​​notch is provided on both the left and right sides of the box.

8. The dual-purpose packaging box for both warm and brittle conditions according to claim 1, characterized in that, A groove is provided on the bottom side of the accommodating cavity.

9. The dual-purpose packaging box for both warm and brittle conditions according to claim 1, characterized in that, The bottom of the accommodating cavity is provided with multiple protrusions.

10. The dual-purpose packaging box for both warm and brittle conditions according to claim 1, characterized in that, The box body has a partition in the accommodating cavity for separating the accommodating cavity.

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