A liner and a baling bowl applying the liner
By setting breathable but waterproof micro-vent holes on the inner wall and the bowl/lid, the problem of soup leakage and food mixing during transportation is solved, thus improving stability and heat preservation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- OTOR TECHNOLOGY CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-23
AI Technical Summary
Existing takeout bowls with inner liner are prone to leakage or mixing of soup and dry ingredients during transportation due to shaking, and the heat cannot be effectively released, affecting stability and heat preservation.
A first micro-vent is provided on the side wall of the inner liner to allow air to pass through while preventing water from passing through, thus avoiding excessive pressure between the inner liner and the lid and preventing leakage. A second micro-vent is provided on the bowl and the lid to control the flow of gas and liquid.
This design prevents soup and dry ingredients from mixing during transportation, maintains airtightness, and improves heat retention, ensuring the stability and safety of the packaging bowl.
Smart Images
Figure CN224393309U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of packaging container technology, specifically referring to an inner liner and a packaging bowl using the inner liner. Background Technology
[0002] With the increasingly fast pace of urban life, people have more and more time for meals. Many people now choose to order takeout to solve their hunger problem. Among takeout meals, takeout bowls are indispensable. Most of the existing takeout bowls are made of plastic and are generally equipped with a suitable lid for sealing to prevent leakage. At the same time, the lid is also equipped with vents to let out hot air, which plays a role in depressurization and prevents the lid from being blown off due to excessive pressure inside the takeout bowl.
[0003] When packing foods that require separating the soup from the liquid, such as noodle soup, dumplings, and wontons, it is necessary to use a packing bowl with an inner liner. However, existing packing bowls with inner liners have the following problems:
[0004] 1. When there is a gap between the inner pot and the takeaway bowl, the lid can only be sealed to the edge of the takeaway bowl. During transportation, the soup in the takeaway bowl may easily enter the inner pot due to shaking; or the soup in the inner pot may easily flow into the takeaway bowl due to shaking.
[0005] 2. There is no gap between the inner liner and the packaging bowl, and the inner liner and the packaging bowl are relatively sealed. The lid can press the edge of the inner liner tightly against the packaging bowl, and the lid is sealed to the inner liner or packaging bowl. At this time, the heat generated inside the packaging bowl cannot be discharged, which will push the inner liner and the packaging bowl together, resulting in poor sealing and leakage; or it will cause the packaging bowl, inner liner or lid to deform, resulting in gaps in the connection and leakage.
[0006] Therefore, improving the stability of takeout bowls with inner liner during operation and preventing leakage or contact between soup and dry ingredients during transportation has become an urgent technical problem to be solved. Utility Model Content
[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an inner pot that can improve the stability during transportation, prevent leakage, and prevent soup and food from mixing, as well as a packaging bowl using the inner pot.
[0008] The objective of this utility model can be achieved through the following technical solutions:
[0009] An inner liner, the inner liner being bowl-shaped, characterized in that: the upper end of the inner liner has an outwardly protruding upper edge, and the side wall of the inner liner is provided with a plurality of first micro-vent holes that are breathable but not water-permeable.
[0010] The inner pot has a first micro vent hole on its side wall that is breathable but not water-permeable. This allows hot steam to escape through the first micro vent hole, preventing excessive pressure between the inner pot and the lid from causing the lid to detach from the bowl and leak. At the same time, the first micro vent hole is breathable but not water-permeable, so the soup and food between the inner pot and the lid will not mix through the first micro vent hole.
[0011] Gas molecules (such as air and water vapor) typically have a diameter of only 0.1-10 μm, which is smaller than the diameter of the first micro vent hole, and can easily pass through it. Liquid molecules, on the other hand, usually exist in the form of water droplets. Due to the fact that the overall diameter of the water droplet is much larger than the diameter of the first micro vent hole and the existence of the liquid surface tension on the surface of the water droplet, the water droplet has difficulty passing through the first micro vent hole, thereby achieving the function of the inner liner sidewall being breathable but waterproof.
[0012] In one of the aforementioned inner liner designs, the diameter of the first micro-vent hole ranges from 0.02 mm to 0.5 mm. Preferably, the diameter of the first micro-vent hole is 0.1 mm.
[0013] In one of the aforementioned inner liner types, the wall thickness ranges from 0.1 mm to 2 mm. Preferably, the wall thickness of the inner liner is 1 mm.
[0014] In one of the aforementioned inner liner types, the first micro-vent hole is located at the bottom of the inner liner.
[0015] When the inner pot contains relatively dry food and the bowl contains liquid soup, the first micro vent hole located at the bottom of the inner pot can introduce the heat of the soup into the inner pot, preventing the food inside from cooling down and improving the heat preservation effect; since the first micro vent hole is breathable but not water-permeable, the soup in the bowl cannot enter the inner pot through the first micro vent hole.
[0016] In one of the aforementioned inner liner types, the first micro-vent holes are all located on the upper part of the side wall of the inner liner, and the first micro-vent holes are located near the upper edge of the inner liner.
[0017] When the inner pot contains soup and the bowl contains drier food, if it's necessary to keep the food in the bowl warm, a second micro-vent can be installed on the side wall of the bowl, while the lid does not. The steam from the soup first enters the bowl through the first micro-vent, then stays inside for a period before escaping through the second micro-vent, thus keeping the food warm. The location of the first micro-vent facilitates the entry of steam from the inner pot into the bowl. If it's not necessary to keep the food warm, a second micro-vent can be installed on the lid, or both the lid and the side wall of the bowl. The steam from the inner pot escapes directly through the second micro-vent on the lid, while the steam from the food in the bowl first enters the inner pot through the first micro-vent and then escapes through the second micro-vent on the lid, or vice versa.
[0018] In one of the aforementioned inner liner types, the first micro-vent holes are clustered in one or more small areas.
[0019] In one of the aforementioned inner liner types, the first micro-vent holes are spaced apart along the circumference of the inner liner.
[0020] The first micro-vent holes can be concentrated in a small area or spaced out circumferentially, both of which are conventional implementation methods. The choice can be made according to the shape of the inner liner and the needs of use.
[0021] A packaging bowl using the above-mentioned inner liner is characterized in that: it includes a bowl body, a lid body and an inner liner body, the upper part of the bowl body is expanded outward to form a stepped portion, the upper edge of the inner liner body can be placed on the stepped portion, the lid body can press the upper edge tightly onto the stepped portion, and the side wall of the bowl body and / or the lid body are provided with a second micro vent hole that is breathable but waterproof.
[0022] The connection structure between the bowl and the inner pot can achieve a relative seal at the connection point between the bowl and the inner pot, preventing the soup and food inside the inner pot from mixing.
[0023] When the inner pot contains relatively dry food and the bowl contains liquid soup, the first micro vent hole located at the bottom of the inner pot can introduce the heat of the soup into the inner pot, preventing the food inside from cooling down and improving the heat preservation effect; since the first micro vent hole is breathable but not water-permeable, the soup in the bowl cannot enter the inner pot through the first micro vent hole.
[0024] When the inner pot contains soup and the bowl contains drier food, if it's necessary to keep the food in the bowl warm, a second micro-vent can be installed on the side wall of the bowl, while the lid does not. The steam from the soup first enters the bowl through the first micro-vent, then stays inside for a period before escaping through the second micro-vent, thus keeping the food warm. The location of the first micro-vent facilitates the entry of steam from the inner pot into the bowl. If it's not necessary to keep the food warm, a second micro-vent can be installed on the lid, or both the lid and the side wall of the bowl. The steam from the inner pot escapes directly through the second micro-vent on the lid, while the steam from the food in the bowl first enters the inner pot through the first micro-vent and then escapes through the second micro-vent on the lid, or vice versa.
[0025] In one of the aforementioned packaging bowls, the second micro-vent is located on the upper part of the bowl's side wall, and the second micro-vent is concentrated in one or more small areas on the bowl's side wall; or the second micro-vent is spaced apart along the circumference of the bowl on the bowl's side wall.
[0026] In one of the aforementioned packaging bowls, the second micro-vent is located on the upper side of the lid, and the second micro-vent is concentrated in one or more small areas on the upper side of the lid; or the second micro-vent is spaced along the circumference of the lid at the edge of the upper side of the lid.
[0027] In the aforementioned packaging bowl, the diameter of the second micro-vent hole ranges from 0.02mm to 0.5mm; the wall thickness of the bowl body and lid ranges from 0.1mm to 2mm. Preferably, the diameter of the second micro-vent hole is 0.1mm; preferably, the wall thickness of the bowl body and lid is 1mm.
[0028] Compared with the prior art, the technical effects of this utility model are as follows:
[0029] 1. The inner pot is provided with a first micro vent hole on the side wall, which is breathable but not water-permeable. Hot steam can be discharged through the first micro vent hole to avoid excessive pressure between the inner pot and the lid, which may cause the lid to detach from the bowl and cause leakage. At the same time, the first micro vent hole is breathable but not water-permeable, so the soup and food between the inner pot and the lid will not mix through the first micro vent hole.
[0030] 2. A second micro vent is provided on the side wall of the bowl, which can discharge the hot steam in the bowl through the second micro vent, and can also discharge the hot steam that enters the bowl through the first micro vent in the inner liner through the second micro vent.
[0031] 3. The lid can not only release the hot steam in the inner pot through the second micro vent, but also allow the hot steam generated in the bowl to enter the inner pot through the first micro vent and then be released through the second micro vent. Attached Figure Description
[0032] Figure 1 This is an exploded structural diagram of the present invention.
[0033] Figure 2 These are the overall sectional view and the enlarged partial view of this utility model.
[0034] Figure 3 These are a top view and a partial enlarged view of this utility model.
[0035] Figure 4 This is a schematic diagram and a partial enlarged view of the bowl body of this utility model.
[0036] In the diagram, 1 is the inner liner; 11 is the upper edge; 12 is the first micro vent; 2 is the bowl body; 21 is the stepped part; 3 is the lid; and 4 is the second micro vent. Detailed Implementation
[0037] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0038] The inner pot 1 is bowl-shaped, with an outwardly protruding upper edge 11 at its top. Multiple breathable but waterproof micro-vent holes 12 are provided on the side wall of the inner pot 1. These breathable but waterproof micro-vent holes 12 allow hot steam to escape, preventing excessive pressure between the inner pot 1 and the lid 3 from detaching from the bowl 2 and causing leakage. Simultaneously, these micro-vent holes 12 ensure that the soup and food between the inner pot 1 and the lid 3 do not mix through the micro-vent holes 12.
[0039] Gas molecules (such as air and water vapor) typically have a diameter of only 0.1-10 μm, which is smaller than the diameter of the first micro vent hole 12, and can easily pass through the first micro vent hole 12. Liquid molecules, on the other hand, usually exist in the form of water droplets. Due to the fact that the overall diameter of the water droplet is much larger than the diameter of the first micro vent hole 12 and the existence of the liquid surface tension on the surface of the water droplet, the water droplet has difficulty passing through the first micro vent hole 12, thereby achieving the function of the inner liner 1 being breathable but waterproof.
[0040] Furthermore, the diameter of the first micro-vent 12 ranges from 0.02mm to 0.5mm; the wall thickness of the inner liner 1 ranges from 0.1mm to 2mm. Preferably, the diameter of the first micro-vent 12 is 0.1mm; and the wall thickness of the inner liner 1 is 1mm.
[0041] The first micro vent 12 is located at the bottom of the inner pot 1. When the inner pot 1 contains relatively dry food and the bowl 2 contains liquid soup, the first micro vent 12 at the bottom of the inner pot 1 can introduce the heat of the soup into the inner pot 1, preventing the food in the inner pot 1 from cooling down and improving the heat preservation effect; since the first micro vent 12 is breathable but not water-permeable, the soup in the bowl 2 cannot enter the inner pot 1 through the first micro vent 12.
[0042] As an alternative, the first micro-vent holes 12 are all located on the upper side wall of the inner liner 1, near the upper edge 11 of the inner liner 1. When the inner liner 1 contains soup and the bowl 2 contains drier food, if it is necessary to keep the food in the bowl 2 warm, a second micro-vent hole 4 can be provided on the side wall of the bowl 2, while the lid 3 does not have a second micro-vent hole 4. The heat generated by the soup first enters the bowl 2 through the first micro-vent hole 12, and then, after staying in the bowl 2 for a period of time, it is discharged through the second micro-vent hole 4 on the bowl 2, thereby keeping the food in the bowl 2 warm. The aforementioned position of the first micro-vent hole 12 facilitates the entry of heat from the inner liner 1 into the bowl 2. If it is not necessary to keep the food in the bowl 2 warm, a second micro vent 4 can be provided on the lid 3, or a second micro vent 4 can be provided on the side walls of both the lid 3 and the bowl 2. The hot air generated in the inner pot 1 can be directly discharged through the second micro vent 4 on the lid 3. The hot air generated by the food in the bowl 2 can first enter the inner pot 1 through the first micro vent 12 and then be discharged through the second micro vent 4 on the lid 3, or the hot air generated by the food in the bowl 2 can be directly discharged through the second micro vent 4 on the side wall of the bowl 2.
[0043] Furthermore, the first micro-vent holes 12 are clustered in one or more small areas; the first micro-vent holes 12 are spaced apart along the circumference of the inner liner 1. Both clustering the first micro-vent holes 12 in small areas and spaced apart along the circumference are conventional implementations, and can be selected according to the shape of the inner liner 1 and usage requirements.
[0044] A takeout bowl using the aforementioned inner liner 1 includes a bowl body 2, a lid 3, and an inner liner 1. The upper part of the bowl body 2 expands outward to form a stepped portion 21. The upper edge 11 of the inner liner 1 can be placed on the stepped portion 21, and the lid 3 can press the upper edge 11 tightly against the stepped portion 21. The side wall of the bowl body 2 and / or the lid 3 are provided with a second micro-vent hole 4 that is breathable but waterproof. The connection structure between the bowl body 2 and the inner liner 1 can achieve a relative seal at the connection between the bowl body 2 and the inner liner 1, preventing the soup and food inside the inner liner 1 and the bowl body 2 from mixing.
[0045] When the inner pot 1 contains relatively dry food and the bowl 2 contains liquid soup, the first micro vent 12, located at the bottom of the inner pot 1, can introduce the hot air from the soup into the inner pot 1, preventing the food in the inner pot 1 from cooling down and improving the heat preservation effect. Since the first micro vent 12 is breathable but not water-permeable, the soup in the bowl 2 cannot enter the inner pot 1 through the first micro vent 12.
[0046] When the inner pot 1 contains soup and the bowl 2 contains drier food, if it is necessary to keep the food in the bowl 2 warm, a second micro vent 4 can be provided on the side wall of the bowl 2. The lid 3 does not have a second micro vent 4. The heat generated by the soup first enters the bowl 2 through the first micro vent 12, and then stays in the bowl 2 for a period of time before being discharged through the second micro vent 4 on the bowl 2, thereby keeping the food in the bowl 2 warm. The position of the first micro vent 12 facilitates the entry of heat from the inner pot 1 into the bowl 2. If it is not necessary to keep the food in the bowl 2 warm, a second micro vent 4 can be provided on the lid 3, or a second micro vent 4 can be provided on the side walls of both the lid 3 and the bowl 2. The hot air generated in the inner pot 1 can be directly discharged through the second micro vent 4 on the lid 3. The hot air generated by the food in the bowl 2 can first enter the inner pot 1 through the first micro vent 12 and then be discharged through the second micro vent 4 on the lid 3, or the hot air generated by the food in the bowl 2 can be directly discharged through the second micro vent 4 on the side wall of the bowl 2.
[0047] Furthermore, the second micro-vent holes 4 are located on the upper part of the side wall of the bowl body 2, and the second micro-vent holes 4 are concentrated in one or more small areas on the side wall of the bowl body 2; or the second micro-vent holes 4 are spaced apart along the circumference of the bowl body 2 on the side wall of the bowl body 2; the second micro-vent holes 4 are located on the upper side of the lid body 3, and the second micro-vent holes 4 are concentrated in one or more small areas on the upper side of the lid body 3; or the second micro-vent holes 4 are spaced apart along the circumference of the lid body 3 at the edge of the upper side of the lid body 3; the diameter of the second micro-vent holes 4 is in the range of 0.02mm-0.5mm; the wall thickness of the bowl body 2 and the lid body 3 is in the range of 0.1mm-2mm. Preferably, the diameter of the second micro-vent holes 4 is 0.1mm; preferably, the wall thickness of the bowl body 2 and the lid body 3 is 1mm.
[0048] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection defined by the claims of the present utility model.
Claims
1. An inner liner, said inner liner (1) being bowl-shaped, characterized in that: The inner liner (1) has an outwardly protruding upper edge (11) at its upper end, and the inner liner (1) has a plurality of breathable but waterproof first micro-vent holes (12) on its side wall; the diameter of the first micro-vent holes (12) ranges from 0.02mm to 0.5mm.
2. The inner liner according to claim 1, characterized in that: The wall thickness of the inner liner (1) ranges from 0.1 mm to 2 mm.
3. The inner liner according to claim 1, characterized in that: The first micro-vent holes (12) are clustered in one or more small areas; the first micro-vent holes (12) are spaced apart along the circumference of the inner liner (1).
4. An inner liner according to any one of claims 1-3, characterized in that: The first micro-vent hole (12) is located at the bottom of the inner liner (1).
5. An inner liner according to any one of claims 1-3, characterized in that: The first micro-vent hole (12) is located on the upper part of the side wall of the inner liner (1), and the first micro-vent hole (12) is located near the upper edge (11) of the inner liner (1).
6. A takeout bowl, characterized in that: The bowl (2), the lid (3), and the inner liner (1) as described in any one of claims 1-5 are included. The upper part of the bowl (2) is expanded outward to form a stepped portion (21). The upper edge (11) of the inner liner (1) can be placed on the stepped portion (21). The lid (3) can press the upper edge (11) onto the stepped portion (21). The side wall of the bowl (2) and / or the lid (3) are provided with a second micro-ventilation hole (4) that is breathable but not water-permeable.
7. A takeout bowl according to claim 6, characterized in that: The second micro-vent (4) is located on the upper part of the side wall of the bowl (2), and the second micro-vent (4) is concentrated in one or several small areas on the side wall of the bowl (2); or the second micro-vent (4) is arranged at intervals along the circumference of the bowl (2) on the side wall of the bowl (2).
8. A takeout bowl according to claim 7, characterized in that: The second micro-vent hole (4) is provided on the upper side of the cover (3), and the second micro-vent hole (4) is gathered in one or more small areas on the upper side of the cover (3); or the second micro-vent hole (4) is provided at intervals along the circumference of the cover (3) at the edge of the upper side of the cover (3).
9. A takeout bowl according to any one of claims 6-8, characterized in that: The diameter of the second micro-vent hole (4) ranges from 0.02mm to 0.5mm; the wall thickness of the bowl (2) and the lid (3) ranges from 0.1mm to 2mm.