A packaging box for baked fish
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI ZHENGYAO PACKAGING CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-08-07
AI Technical Summary
这种加热方式不仅操作繁琐，而且受到设备条件限制，在户外、旅行或办公场所等缺乏加热设备的环境下无法便捷食用
[0018]基于上述技术方案，本申请实施例至少具有以下有益效果：本申请通过双层盒体结构设计解决了现有技术中烤鱼产品加热不便的问题。外盒体和内盒体之间形成的加热空腔为加热包提供了专门的放置空间，使得烤鱼产品能够实现自加热功能，无需借助外部加热设备，通气间隙和伸手槽的设计实现了热气的流通，加热过程中产生的热气通过通气间隙从伸手槽流出，以对烤鱼进行直接加热，进入通气间隙的热气在内盒体的侧壁对烤鱼进行间接加热，这种直接加热和间接加热相结合的方式能够确保了加热效果的均匀性。
Smart Images
Figure CN224603693U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of packaging box technology, and in particular to a packaging box for grilled fish. Background Technology
[0002] With the accelerating pace of life and changing consumption habits, the demand for convenience foods is constantly growing. Ready-to-eat grilled fish products are particularly popular among consumers. Currently, grilled fish products are typically packaged in ordinary plastic bags or simple lunchboxes, requiring external heating devices such as microwaves or steamers for reheating before consumption. This heating method is not only cumbersome but also limited by equipment availability, making it inconvenient to eat outdoors, while traveling, or in offices where heating equipment is unavailable. While some products utilize self-heating packaging technology, most designs suffer from uneven heating, resulting in insufficient heating of the food and negatively impacting the eating experience. Utility Model Content
[0003] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a grilled fish packaging box capable of uniformly heating the grilled fish inside the box.
[0004] A grilled fish packaging box, comprising:
[0005] The outer box has outwardly extending handrails on both sides of its open end. The inner wall of the outer box is recessed at the handrails to form a reach groove. A supporting step is provided around the inner wall of the outer box. The bottom of the reach groove is located below the supporting step. The supporting step is spaced a certain distance from the end face of the opening of the outer box.
[0006] An inner box is assembled inside the outer box. The edge of the inner box has an outwardly extending protrusion. After the inner box is assembled inside the outer box, the protrusion rests on the supporting step. The height of the inner box is less than the height of the outer box. The bottom of the inner box and the bottom of the outer box are spaced apart to form a heating cavity. The outer wall of the inner box and the inner wall of the outer box are spaced apart to form a ventilation gap. The ventilation gap connects the heating cavity and the reach slot. Hot air in the heating cavity can flow out from the reach slot through the ventilation gap.
[0007] Inner box cover, fitted at the opening of the inner box body;
[0008] The outer box cover is fitted at the opening of the outer box body, and the outer box cover and the inner box cover are spaced apart, fitted or attached to each other.
[0009] In an optional or preferred embodiment, the four corners of the outer box and the four corners of the inner box are all set as rounded corner structures. The supporting step is provided with an outwardly flared rounded corner corresponding to the rounded corner of the inner box. After the inner box is assembled into the outer box, part of the outwardly flared rounded corner is exposed between the rounded corner of the inner box and the rounded corner of the outer box. The hot air in the heating cavity can flow out from the outwardly flared rounded corner through the ventilation gap.
[0010] In an optional or preferred embodiment, a plurality of first protrusions are provided on the inner sidewall of the outer box. Each first protrusion is distributed at intervals along the length direction of the sidewall of the outer box. The first protrusions extend along the height direction of the outer box. The first protrusions extend from the bottom edge of the outer box to near the support step. The first protrusions form a first groove on the outer wall of the outer box.
[0011] In an optional or preferred embodiment, a chamfered structure is provided at the connection between the side wall and the bottom of the outer box.
[0012] In an optional or preferred embodiment, at least four positioning grooves are arrayed on the outer surface of the inner box cover, and the positioning grooves form positioning protrusions on the inner surface of the inner box cover. The positioning protrusions are used to cooperate with the first groove at the chamfered structure.
[0013] In an optional or preferred embodiment, a plurality of second protrusions are provided on the inner sidewall of the inner box. Each second protrusion is spaced apart along the length of the sidewall of the inner box and extends along the height of the inner box. The second protrusion extends from the bottom of the inner box to a certain distance from the end face of the opening end of the inner box. The second protrusion forms a second groove on the outer wall of the outer box. After the inner box is assembled into the inner box, the second groove and the first protrusion cooperate with each other.
[0014] In an optional or preferred embodiment, the outer cover is provided with ear plates on both sides corresponding to the armrest, and the inner side of the ear plates is provided with a slot for engaging the armrest, so that the armrest can engage with the slot.
[0015] In an optional or preferred embodiment, the bottom of the outer box is provided with a plurality of outwardly protruding corrugated bumps.
[0016] In optional or preferred embodiments, both the inner box cover and the outer box cover are provided with ventilation holes.
[0017] In an optional or preferred embodiment, a water injection line is provided at the bottom of the outer casing.
[0018] Based on the above technical solution, the embodiments of this application have at least the following beneficial effects: This application solves the problem of inconvenient heating of grilled fish products in the prior art through a double-layer box structure design. The heating cavity formed between the outer box and the inner box provides a dedicated space for the heating pack, enabling the grilled fish product to achieve self-heating without the need for external heating equipment. The design of the ventilation gap and the reach slot allows for the circulation of hot air. The hot air generated during the heating process flows out from the reach slot through the ventilation gap to directly heat the grilled fish. The hot air entering the ventilation gap indirectly heats the grilled fish on the side wall of the inner box. This combination of direct and indirect heating ensures the uniformity of the heating effect. Attached Figure Description
[0019] The present application will be further described below with reference to the accompanying drawings and embodiments;
[0020] Figure 1 This is a schematic diagram of the structure of a grilled fish packaging box provided in one embodiment of this application;
[0021] Figure 2 yes Figure 1 The diagram shown illustrates the structure of the inner box assembly inside the outer box in the embodiment shown.
[0022] Figure 3 yes Figure 1 The diagram shows the structural design of the outer casing in the embodiment shown.
[0023] Figure 4 yes Figure 1 A schematic diagram of the inner box structure in the embodiment shown;
[0024] Figure 5 yes Figure 1 A schematic diagram of the inner box cover in the embodiment shown;
[0025] Figure 6 yes Figure 1 A structural schematic diagram of the inner box cover from another perspective in the embodiment shown;
[0026] Figure 7 yes Figure 1 A schematic diagram of the outer box cover in the embodiment shown;
[0027] Figure 8 yes Figure 1 A structural schematic diagram of the outer box cover from another perspective in the embodiment shown.
[0028] Figure label:
[0029] 100 - Outer box body; 110 - Handrail; 111 - Reaching groove; 120 - Support step; 130 - Outwardly flared rounded corner; 140 - First protrusion; 150 - First groove; 160 - Sloping chamfered structure; 200 - Inner box body; 210 - Boss; 220 - Second protrusion; 230 - Second groove; 300 - Inner box cover; 310 - Positioning groove; 320 - Positioning protrusion; 400 - Outer box cover; 410 - Ear plate; 411 - Slot; 420 - Clearance groove. Detailed Implementation
[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0031] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do 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 application.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0036] With the accelerating pace of life and changing consumption habits, the demand for convenience foods is constantly growing, especially for ready-to-eat grilled fish products, which are favored by a wide range of consumers. Currently, grilled fish products are typically packaged in ordinary plastic bags or simple lunch boxes, requiring external heating devices such as microwave ovens or steamers for secondary heating before consumption. This heating method is not only cumbersome but also limited by equipment availability, making it inconvenient to eat outdoors, while traveling, or in offices where heating equipment is unavailable. While some products utilize self-heating packaging technology, most designs suffer from uneven heating, resulting in insufficient heating of the food and affecting the eating experience.
[0037] Reference Figures 1 to 8 This application provides a grilled fish packaging box, including an outer box body 100, an inner box body 200, an inner box lid 300, and an outer box lid 400.
[0038] The outer box 100 adopts a rectangular box structure, with outwardly extending handles 110 on both sides of its open end. The handles 110 protrude outward in an ear shape. The design of the handles 110 facilitates the user's handling and operation. Especially during the heating process, the user can safely move the packaging box through the handles 110, avoiding the risk of direct contact with the high-temperature box.
[0039] The inner wall of the outer box 100 is recessed at the handrail 110 to form a reach groove 111. A ring of support steps 120 is provided on the inner wall of the outer box 100. The support steps 120 protrude inward in a stepped shape. The bottom of the reach groove 111 is located below the support steps 120. The two form a height difference in the vertical direction. The support steps 120 form a gap at the reach groove 111 to ensure the smooth flow of hot air.
[0040] The inner box 200 is shaped to match the outer box 100 and is fitted inside the outer box 100. The inner box 200 has outwardly extending bosses 210 along its edges. The width of the bosses 210 matches the width of the supporting steps 120. After the inner box 200 is fitted inside the outer box 100, the bosses 210 rest on the supporting steps 120. This cooperative design between the supporting steps 120 and the bosses 210 ensures the stable positioning of the inner box 200 within the outer box 100, preventing shaking and displacement during use, and improving safety and convenience.
[0041] The inner box cover 300 is fitted into the opening of the inner box body 200, and the outer box cover 400 is fitted into the opening of the outer box body 100.
[0042] The support step 120 is spaced a certain distance from the end face of the opening of the outer box 100. This distance is set so that after the inner box 200 is assembled into the outer box 100, the end face of the opening of the inner box 200 is lower than the end face of the opening of the outer box 100. This ensures that after the inner box cover 300 is installed on the inner box 200, it will not interfere with the outer box cover 400 assembled on the outer box 100.
[0043] The height of the inner box 200 is less than the height of the outer box 100. After the inner box 200 is installed inside the outer box 100, the bottom of the inner box 200 and the bottom of the outer box 100 are spaced apart to form a heating cavity. The heating cavity provides ample space for the placement of the heating pack and the generation of hot air. The outer wall of the inner box 200 and the inner wall of the outer box 100 form a ventilation gap, which connects the heating cavity and the reach slot 111. Specifically, after the inner box 200 is assembled inside the outer box 100, the side walls of the inner box 200 and the side walls of the outer box 100 are not directly attached, but are spaced apart to form a ventilation gap. In this way, the hot air generated in the heating cavity rises and enters the ventilation gap, heating the area around the inner box 200.
[0044] When it is necessary to heat the grilled fish in the inner box 200, open the inner box lid 300 and the outer box lid 400, reach into the hand slot 111 to remove the inner box 200, add water to the outer box 100 and put in the heating pack, then put the inner box 200 into the outer box 100 and close the outer box lid 400. The water reacts with the heating pack to generate hot air. The hot air enters the ventilation gap and indirectly heats the grilled fish around the inner box 200. The hot air also flows out from the hand slot 111 through the ventilation gap. After being blocked by the outer box lid 400, the hot air flows directly to the grilled fish in the inner box 200, thus directly heating the grilled fish. Therefore, this application achieves all-round heating of the grilled fish by indirectly heating the grilled fish around the inner box 200 with the hot air entering the ventilation gap and directly heating the grilled fish with the hot air flowing out from the hand slot 111, making the grilled fish more evenly heated.
[0045] The reach slot 111 serves two purposes: firstly, it allows the user to easily reach in and remove the inner box 200; secondly, it facilitates the ventilation of heat.
[0046] The outer box cover 400 has ear plates 410 on both sides corresponding to the armrest 110. The inner side of the ear plate 410 is provided with a slot 411 that matches the armrest 110. After the outer box cover 400 is placed on the outer box body 100, the armrest 110 will be installed in the slot 410. The ear plate 410 can cover the reach groove 111 on the armrest 110 to prevent impurities from entering the reach groove 111.
[0047] In this application, the outer box cover 400 and the inner box cover 300 cooperate with each other. Specifically, the inner side of the outer box cover 400 is provided with a relief groove 420 to avoid the inner box cover 300. After the outer box cover 400 is placed on the outer box body 100, the top of the inner box cover 300 is embedded in the relief groove 420, thereby avoiding interference between the outer box cover 400 and the inner box cover 300.
[0048] Of course, in other embodiments, the outer box cover 400 and the inner box cover 300 can be configured to be spaced apart or fitted together. Specifically, when the outer box cover 400 and the inner box cover 300 are spaced apart, the supporting step 120 is made deeper, so that the distance between it and the end face of the opening of the outer box body 100 is greater. When the outer box cover 400 and the inner box cover 300 are fitted together, the supporting step 120 is made shallower, so that the distance between it and the end face of the opening of the outer box body 100 is smaller, ensuring that the outer box cover 400 can be fitted onto the inner box cover 300 after it is placed on the outer box body 100.
[0049] In some embodiments, the four corners of the outer box 100 and the four corners of the inner box 200 are all rounded. The rounded corner design not only improves the aesthetics of the packaging box but also reduces potential safety hazards caused by sharp corners. An outwardly flared rounded corner 130 is provided on the supporting step 120 corresponding to the rounded corner of the inner box 200. The radius of curvature of the outwardly flared rounded corner 130 is 2-5 mm larger than the radius of curvature of the rounded corner of the inner box 200, forming a localized extended space. After the inner box 200 is assembled into the outer box 100, part of the outwardly flared rounded corner 130 is exposed between the rounded corners of the inner box 200 and the outer box 100, such as... Figure 2 As shown. Therefore, the outwardly flared rounded corners 130 form additional ventilation channels. The hot air in the heating cavity can flow out from the outwardly flared rounded corners 130 through the ventilation gaps, thus forming ventilation channels at the four corners of the inner box 200. During the heating process, the hot air generated in the heating cavity can not only flow out through the reach slots 111 on the armrests 110 on both sides to directly heat the grilled fish, but also flow out through the outwardly flared rounded corners 130 at the four corners of the outer box 100 to directly heat the grilled fish, realizing that the hot air flows out from different directions to heat the grilled fish, which makes the heating more uniform and the heating effect higher.
[0050] Reference Figure 3 In some embodiments, the inner sidewall of the outer box 100 is provided with a plurality of first protrusions 140. The first protrusions 140 are strip-shaped and are spaced apart along the length of the sidewall of the outer box 100. The first protrusions 140 extend along the height of the outer box 100, from the bottom edge of the outer box 100 to near the supporting step 120. The first protrusions 140 form corresponding first grooves 150 on the outer wall of the outer box 100. The provision of the first protrusions 140 increases the surface area of the sidewall of the outer box 100, which improves heat dissipation efficiency and strengthens the structural strength of the sidewall of the outer box 100, making the entire outer box 100 more load-bearing.
[0051] The inner sidewall of the inner box 200 is also provided with a plurality of second protrusions 220. Each second protrusion 220 is distributed at intervals along the length of the sidewall of the inner box 200 and extends along the height of the inner box 200. The second protrusion 220 extends from the bottom of the inner box 200 to a certain distance from the end face of the opening end of the inner box 200. The second protrusion 220 forms a second groove 230 on the outer wall of the inner box 200. After the inner box 200 is assembled into the outer box 100, the second groove 230 and the first protrusion 140 cooperate with each other, making the inner box 200 more stably installed inside the outer box 100.
[0052] In some embodiments, a chamfered structure 160 is provided at the connection between the side wall and the bottom of the outer box 100, with the chamfer angle being 30-60 degrees and the chamfer width being 3-8 mm.
[0053] The bottom of the outer box 100 is provided with multiple outwardly protruding corrugated bumps, which are arranged in a wave-like pattern. The corrugated bumps increase the friction of the bottom of the outer box 100, preventing the packaging box from sliding on a smooth surface.
[0054] The bottom of the inner wall of the outer box 100 is also equipped with a water injection line, which is 5-10 mm away from the bottom edge of the box. This provides users with a precise reference standard for adding heating water, ensuring the stability and safety of the heating effect.
[0055] To improve ease of use and safety, four positioning grooves 310 are arrayed on the outer surface of the inner box cover 300. Each positioning groove 310 has a rectangular structure, and corresponding positioning protrusions 320 are formed on the inner surface of the inner box cover 300. The positioning protrusions 320 engage with the first groove 150 at the chamfered structure 160. During use, the inner box cover 300 is removed and flipped over so that the side with the positioning protrusions 320 faces upwards. Then, the outer box body 100 is placed on the inner box cover 300, allowing the positioning protrusions 320 on the inner box cover 300 to engage with the corresponding first groove 150. Because the first groove 150 engages with the positioning protrusions 320, the outer box body 100 is placed more stably on the inner box cover 300.
[0056] In other embodiments, the positioning bumps 320 can be provided in six or eight forms, which can make the positioning more stable.
[0057] In some embodiments, both the inner cover 300 and the outer cover 400 are provided with ventilation holes, which ensures ventilation while preventing heat loss too quickly.
[0058] This application solves the problem of inconvenient heating of grilled fish products in the prior art through a double-layer box structure design. The heating cavity formed between the outer box 100 and the inner box 200 provides a dedicated space for the heating pack, enabling the grilled fish product to achieve self-heating without the need for external heating equipment. The design of the ventilation gap, the reach slot 111, and the outwardly flared rounded corner 130 allows for the flow of hot air. The hot air generated during the heating process flows out through the ventilation gap from the reach slot 111 and the outwardly flared rounded corner 130 to directly heat the grilled fish. The hot air entering the ventilation gap indirectly heats the grilled fish on the side wall of the inner box 200. This combination of direct and indirect heating ensures the uniformity of the heating effect.
[0059] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application 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 this application.
Claims
1. A packaging box for grilled fish, characterized in that, include: The outer box has outwardly extending handrails on both sides of its open end. The inner wall of the outer box is recessed at the handrails to form a reach groove. A supporting step is provided around the inner wall of the outer box. The bottom of the reach groove is located below the supporting step. The supporting step forms a notch at the reach groove. The supporting step is spaced a certain distance from the end face of the opening of the outer box. An inner box is assembled inside the outer box. The edge of the inner box has an outwardly extending protrusion. After the inner box is assembled inside the outer box, the protrusion rests on the supporting step. The height of the inner box is less than the height of the outer box. The bottom of the inner box and the bottom of the outer box are spaced apart to form a heating cavity. The outer wall of the inner box and the inner wall of the outer box are spaced apart to form a ventilation gap. The ventilation gap connects the heating cavity and the reach slot. Hot air in the heating cavity can flow out from the reach slot through the ventilation gap. Inner box cover, fitted at the opening of the inner box body; The outer box cover is fitted at the opening of the outer box body, and the outer box cover and the inner box cover are spaced apart, fitted or attached to each other.
2. The grilled fish packaging box according to claim 1, characterized in that: The four corners of the outer box and the four corners of the inner box are all rounded. The supporting step is provided with an outwardly flared rounded corner corresponding to the rounded corner of the inner box. After the inner box is assembled into the outer box, part of the outwardly flared rounded corner is exposed between the rounded corner of the inner box and the rounded corner of the outer box. The hot air in the heating cavity can flow out from the outwardly flared rounded corner through the ventilation gap.
3. The grilled fish packaging box according to claim 1, characterized in that: The inner sidewall of the outer box is provided with a plurality of first protrusions, each of the first protrusions being spaced apart along the length of the sidewall of the outer box, the first protrusions extending along the height of the outer box, the first protrusions extending from the bottom edge of the outer box to near the support step, and the first protrusions forming a first groove on the outer wall of the outer box.
4. The grilled fish packaging box according to claim 3, characterized in that: The connection between the side wall and the bottom of the outer box is provided with a sloping chamfer structure.
5. The grilled fish packaging box according to claim 4, characterized in that: At least four positioning grooves are arranged in an array on the outer surface of the inner box cover. The positioning grooves form positioning protrusions on the inner surface of the inner box cover. The positioning protrusions are used to cooperate with the first groove at the chamfered structure.
6. The grilled fish packaging box according to claim 3, characterized in that: The inner sidewall of the inner box is provided with a plurality of second protrusions, each of which is spaced apart along the length of the sidewall of the inner box and extends along the height of the inner box. The second protrusion extends from the bottom of the inner box to a certain distance from the end face of the opening end of the inner box. The second protrusion forms a second groove on the outer wall of the outer box. After the inner box is assembled into the inner box, the second groove and the first protrusion cooperate with each other.
7. The grilled fish packaging box according to claim 1, characterized in that: The outer cover has ear plates on both sides corresponding to the armrest, and the inner side of the ear plates has a slot for engaging the armrest, which can be engaged into the slot.
8. The grilled fish packaging box according to claim 1, characterized in that: The bottom of the outer box is provided with multiple outwardly protruding corrugated bumps.
9. The grilled fish packaging box according to claim 1, characterized in that: Both the inner and outer lids are provided with ventilation holes.
10. The grilled fish packaging box according to claim 1, characterized in that: A water injection line is provided at the bottom of the outer box.