Puncture type separated catering packaging container
By designing a puncture-type, separable food packaging container with a double-sealing structure and a simple shape, the problems of high leakage rate, high cost, and inconvenient operation of traditional food packaging containers have been solved. This has resulted in low leakage rate, low cost, and convenient operation, thereby improving consumer experience and market competitiveness.
Patent Information
- Application Number
- CN202520545847.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Traditional food packaging containers suffer from high leakage rates, high costs, and inconvenient operation, which negatively impacts the consumer dining experience and market competitiveness.
Design a puncture-type separable catering packaging container, which adopts a detachable lid, wet box and dry box, combined with a double sealing structure and simple shape design, including press-type sealing, screw sealing and multiple leak-proof structure, to achieve dry and wet separation through the weak points of the lid and wet box.
Significantly reduces leakage rate to below 5%, lowers production costs by 30%-40%, improves ease of operation, enhances consumer experience, strengthens container stability, and reduces negative reviews.
Smart Images

Figure CN223792165U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of catering packaging technology, specifically a puncture-type detachable catering packaging container. This container is mainly used in catering takeout, dine-in packaging and other scenarios, aiming to solve the problems of high leakage rate, inconvenient operation and high cost of traditional catering packaging containers, and improve the consumer's user experience. Background Technology
[0002] With the rapid development of internet technology and the accelerated pace of life, the food delivery industry has experienced explosive growth. The Chinese food delivery market continues to expand, with categories such as noodle soup and rice noodles, which require separate packaging for dry and wet items, accounting for a significant proportion. However, traditional food packaging boxes currently on the market are revealing numerous problems in actual use.
[0003] Traditional takeout containers have a leakage rate as high as 28%. This is mainly because during transportation, the containers are subjected to external forces such as bumps and compression, causing liquids to easily leak out from the joints between the box and the lid, and from the gaps between different compartments. Leakage not only soils the takeout packaging but may also contaminate the food received by consumers, seriously affecting their dining experience.
[0004] Traditional dry and wet separation packaging boxes are relatively expensive. To achieve a certain degree of separation, complex structural designs or combinations of multiple materials are often used, which significantly increases manufacturing costs. These costs are then passed on to consumers, leading to higher takeout prices and impacting market competitiveness.
[0005] Traditional takeout containers are not convenient to use. Both the packing and consumption processes require consumers to spend considerable time and effort, such as manually pouring different ingredients into different compartments and opening multiple layers of packaging. This inconvenience leads to a poor consumer experience, resulting in a 15% increase in negative reviews.
[0006] The food delivery market for soup noodles, rice noodles, and other similar dishes urgently needs a new type of dry-wet separation packaging box that can effectively solve leakage problems, reduce costs, and improve ease of operation, in order to meet the growing needs of consumers and enhance market satisfaction. Utility Model Content
[0007] The present invention aims to solve the above-mentioned technical problems by providing a puncture-type, separable catering packaging container.
[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a puncture-type, separable catering packaging container, characterized in that it comprises:
[0009] The detachable lid, wet box, and dry box include:
[0010] The wet box is nested inside the dry box, and the lid covers the top of both the wet box and the dry box through a double sealing structure.
[0011] The lid has a stepped cross-section and includes:
[0012] The first pressing part has an elastic buckle structure on its inner side, which is used to form a pressing seal with the ear on the upper edge of the dry box;
[0013] The second knob has a continuous threaded groove on its inner wall, which is used to form a screw-in seal with the multi-stage thread on the upper outer wall of the wet box.
[0014] The lid has a pre-marked weak part at the center, and the bottom of the wet box has a pre-marked weak part at the bottom. The two weak parts are axially aligned to form a puncture-compatible channel.
[0015] In addition, the piercing-type separable catering packaging container proposed above according to this utility model may also have the following additional technical features:
[0016] The dry box has a frustum-shaped structure that is wider at the top and narrower at the bottom, and its inner wall has a ring-shaped support step in the middle section.
[0017] The wet box is a frustum-shaped container with a narrower bottom. Its outer diameter at the bottom matches the inner diameter of the supporting steps of the dry box. The height of the wet box is greater than the depth of the dry box, so that its upper edge is 5-10mm higher than the upper surface of the dry box.
[0018] Furthermore, the multi-stage thread is a segmented thread structure, comprising at least three equally spaced thread protrusions;
[0019] The second knob part has a threaded groove with a guide groove corresponding to the number of threaded protrusions, which is used to guide the quick alignment of the wet box and the lid.
[0020] Furthermore, both the weak points of the through-hole in the lid and the weak points of the through-hole in the wet box have a cross-shaped scoring structure, with a scoring depth of 30%-50% of the material thickness.
[0021] The inner surface of the lid is provided with an annular reinforcing rib, and the center of the rib is concentrically set with the weak part of the through hole of the lid.
[0022] Furthermore, a wave-shaped elastic sealing ring is provided on the inner side of the first pressing part;
[0023] The outer edge of the ear is provided with a wedge-shaped protrusion that cooperates with the wave-shaped sealing ring, forming a multi-layered leak-proof structure.
[0024] The advantages of this utility model compared with the prior art are as follows:
[0025] 1. Reduce leakage rate
[0026] Through a double-sealing structure—a press-type seal between the first pressing part and the dry box, and a screw-on seal between the second knob part and the wet box—along with multiple leak-proof structures, such as the combination of a wave-shaped elastic sealing ring and wedge-shaped protrusions, the leakage rate can be greatly reduced. Compared with the leakage rate of traditional packaging boxes, which is as high as 28%, the leakage rate of this invention's packaging container can be reduced to below 5%, effectively avoiding food leakage problems during transportation and ensuring the integrity and hygiene of the food.
[0027] 2. Reduce costs
[0028] This invention features a relatively simple structural design, requiring no complex manufacturing processes or expensive materials. Through a rational shape design and sealing structure, it reduces production costs while ensuring good performance. Compared to traditional complex dry and wet separation packaging boxes, production costs can be reduced by 30%-40%, which helps catering businesses lower costs and improve their market competitiveness.
[0029] 3. Easy to operate
[0030] During the packaging process, the wet container and lid can be quickly aligned and screwed together via threads and guide grooves, while the lid and dry container can be sealed by pressing, making the operation simple and quick. During consumption, consumers only need to use chopsticks to poke through the weak points of the through-holes in both the lid and the wet container to mix the wet and dry items, eliminating the need for complicated operations. This convenience greatly improves the consumer experience and reduces negative reviews due to inconvenience. It is estimated that after using this new packaging container, the negative review rate due to operational issues can be reduced to below 5%.
[0031] 4. Improve stability
[0032] The frustum-shaped structure of the dry container (wider at the top and narrower at the bottom) and the complementary design of the wet and dry containers make the entire packaging container more stable during transportation and less prone to tipping over. This helps to further protect the integrity of the food and reduces the risk of food damage and leakage caused by the container tipping over. Attached Figure Description
[0033] Figure 1 This is a structural schematic diagram of a puncture-type detachable catering packaging container according to this utility model.
[0034] Figure 2 This is a schematic diagram of the internal structure of a puncture-type, separable catering packaging container according to this utility model.
[0035] Figure 3 This is a schematic diagram of the structure of the lid of a puncture-type detachable catering packaging container according to this utility model.
[0036] Figure 4 This is a schematic diagram of the installation structure of the dry box and wet box of a puncture-type separable catering packaging container according to this utility model.
[0037] As shown in the figure: 1. Lid; 2. Wet box; 3. Dry box; 4. First pressing part; 5. Second knob part; 6. Weak part of the through hole in the lid; 7. Weak part of the through hole in the wet box; 8. Multi-stage thread; 9. Ear. Detailed Implementation
[0038] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0039] I. Working principle of this utility model:
[0040] This utility model's puncture-type separable catering packaging container mainly includes a detachably connected lid 1, a wet container 2, and a dry container 3. The wet container 2 is nested inside the dry container 3, and the lid 1 covers the top of both the wet container 2 and the dry container 3 through a double-sealing structure. This structural design fundamentally achieves the separate storage of wet and dry foods, effectively preventing the mixing of liquids and solids during transportation and storage.
[0041] The lid 1 has a stepped cross-section and includes a first pressing part 4 and a second knob part 5.
[0042] The first pressing part 4 has an elastic buckle structure on its inner side. When the lid 1 is placed on top of the dry box 3, the elastic buckle structure engages with the lug 9 on the upper edge of the dry box 3. By pressing the lid 1, the elastic buckle structure will tightly lock the lug 9, forming a press-type seal. This sealing method is simple to operate and can achieve a good sealing effect in a short time, effectively preventing solid food inside the dry box 3 from spilling out during transportation.
[0043] The second knob part 5 has a continuous threaded groove on its inner wall, while the upper outer wall of the wet box 2 has multi-stage threads 8. During packaging, the multi-stage threads 8 of the wet box 2 are aligned with the threaded groove of the second knob part 5 of the lid 1, and then the lid 1 is rotated to make the wet box 2 tightly screwed onto the lid 1, forming a screw-on seal. This sealing method can withstand a certain amount of pressure and bumps, effectively preventing liquid leakage from the wet box 2.
[0044] The lid 1 has a pre-marked weak point 6 at its center, and the wet container 2 has a pre-marked weak point 7 at its bottom. The two weak points are axially aligned to form a piercing connection channel. When consuming, the consumer only needs to use a sharp object such as chopsticks to poke downwards at the weak point 6 of the lid's through-hole. Due to the markings, the weak points 6 and 7 of the lid's through-hole will be easily pierced, thus connecting the dry container 3 and the wet container 2, making it convenient for the consumer to mix liquid and solid food.
[0045] The dry container 3 has a frustum-shaped structure that is wider at the top and narrower at the bottom, with an annular support step in the middle of its inner wall. This frustum-shaped design helps maintain the stability of the container during transportation and prevents it from tipping over. The annular support step supports the wet container 2, ensuring that the wet container 2 can be placed stably when nested inside the dry container 3.
[0046] The wet container 2 is a frustum-shaped container with a narrower bottom. Its outer diameter matches the inner diameter of the support step of the dry container 3. The height of the wet container is greater than the depth of the dry container, causing its top edge to protrude 5-10mm above the top surface of the dry container. The narrower bottom design of the wet container 2 facilitates installation with the support step of the dry container 3, while the higher bottom of the wet container does not affect the food contents inside the dry container. This allows for a good seal between the wet container 2 and the lid 1 after the lid is closed, further preventing liquid leakage. The raised portion also makes it easier for consumers to handle when packing and opening the container.
[0047] The multi-stage thread 8 is a segmented thread structure, containing at least three equally spaced threaded protrusions. The threaded groove of the second knob part 5 is provided with guide grooves corresponding to the number of threaded protrusions. During the packaging operation, the guide grooves can guide the threaded protrusions of the wet box 2 to quickly and accurately align with the threaded grooves of the box cover 1, greatly improving the efficiency and accuracy of packaging and reducing operation time.
[0048] Both the weak points 6 and 7 of the through-hole in the lid and the wet box have a cross-shaped scoring structure, with a scoring depth of 30%-50% of the material thickness. This cross-shaped scoring structure makes it easier to puncture the weak points along the scoring direction during piercing, and the resulting opening shape is relatively regular, facilitating liquid outflow. The inner surface of the lid 1 has an annular reinforcing rib, with the rib center concentric with the weak point of the through-hole. This annular reinforcing rib enhances the strength of the lid 1, especially around the weak point of the through-hole, preventing deformation or damage to the lid during transportation due to external forces, thus affecting the sealing effect and puncture function.
[0049] The inner side of the first pressing part 4 is provided with a wave-shaped elastic sealing ring, and the outer edge of the ear 9 is provided with a wedge-shaped protrusion that cooperates with the wave-shaped sealing ring. When the lid 1 is pressed on the dry box 3, the wave-shaped elastic sealing ring will fit tightly with the wedge-shaped protrusion, forming a multi-layer leak-proof structure. The wave-shaped elastic sealing ring can adapt to different degrees of pressure, further enhancing the sealing effect and preventing liquid from leaking out from the connection between the dry box 3 and the lid 1.
[0050] II. Implementation Method:
[0051] Box lid 1: Made of food-grade polypropylene (PP) material. Wet box 2: Made of food-grade polyethylene (PE) material. Dry box 3: Also made of food-grade polypropylene (PP) material.
[0052] Align the second knob 5 of the lid 1 with the multi-stage thread 8 of the wet box 2, and rotate the lid 1 to screw the wet box 2 into the lid 1 for a seal. Place the wet box 2 inside the upper part of the dry box 3, ensuring a tight fit between the outer diameter of the bottom of the wet box 2 and the inner diameter of the support step of the dry box 3. Align the first pressing part 4 of the lid 1 with the lug 9 of the dry box 3 and press firmly to engage the elastic snap-fit structure with the lug 9, completing the overall assembly.
[0053] Packaging Scenario: Taking a bowl of soup noodles as an example, the merchant first places the cooked noodles into the dry container 3, and then pours the noodle soup into the wet container 2. Next, align the multi-stage thread 8 of the wet container 2 with the threaded groove of the second knob part 5 of the lid 1, and quickly rotate the lid 1 to seal it. Finally, align the first pressing part 4 of the lid 1 with the ear side 9 of the dry container 3 and press to seal, completing the packaging process. The entire packaging process is simple to operate, quick, and can effectively improve the merchant's packaging efficiency.
[0054] Consumption scenario: After receiving the takeout, the consumer opens the packaging and uses chopsticks to poke down the weak point 6 of the lid's through-hole in box 1, easily penetrating to the weak point 7 of the wet box's through-hole, achieving dry and wet connection. Then, the consumer opens box 1 and discards both box 1 and wet box 2 as a whole, and can then eat the soup noodles in the dry box 3. This consumption method is convenient and hygienic, conforming to consumers' usage habits.
[0055] As can be seen from the above embodiments, the puncture-type separable catering packaging container of this utility model has good feasibility and practicality in actual production and use, can effectively solve the problems existing in traditional catering packaging containers, and has broad market application prospects.
[0056] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A puncture and peel type food packaging container, characterized by, The invention relates to a puncture type separation type catering packaging container, comprising: a detachable connected box cover (1), a wet box (2) and a dry box (3), wherein: the wet box (2) is nested inside the dry box (3) above, and the box cover (1) is covered on the top of the wet box (2) and the dry box (3) through a double sealing structure; the box cover (1) has a stepped cross section, comprising: a first pressing part (4) with an elastic buckle structure on the inner side, used for forming a pressing type sealing with the ear edge (9) of the upper edge of the dry box (3); a second rotary knob part (5) with a continuous thread groove on the inner wall, used for forming a rotary sealing with the multi-stage thread (8) of the outer wall of the upper part of the wet box (2); a pre-scribed box cover through hole weak part (6) is arranged at the center of the box cover (1), and a pre-scribed wet box through hole weak part (7) is arranged at the corresponding position of the bottom of the wet box (2), and the two weak parts are axially aligned to form a puncturable communication channel.
2. The puncture type separation type catering packaging container according to claim 1, wherein: the dry box (3) is a circular truncated cone structure with a wide upper part and a narrow lower part, and an annular support step is arranged in the middle of the inner wall of the dry box (3); the wet box (2) is a circular truncated cone structure with a narrow bottom, the outer diameter of the bottom of the wet box (2) matches the inner diameter of the support step of the dry box (3), and the height of the wet box (2) is greater than the depth of the dry box (3), so that the upper edge of the wet box (2) is 5-10mm higher than the upper plane of the dry box (3).
3. The puncture type separation type catering packaging container according to claim 1, wherein: the multi-stage thread (8) is a segmented thread structure, comprising at least three thread protrusions distributed at equal intervals; the thread groove of the second rotary knob part (5) is provided with a guide groove corresponding to the number of thread protrusions, used for guiding the rapid alignment of the wet box (2) and the box cover (1).
4. The puncture type separation type catering packaging container according to claim 1, wherein: the box cover through hole weak part (6) and the wet box through hole weak part (7) are both cross-shaped scribed structures, and the scribed depth is 30%-50% of the thickness of the material; an annular reinforcing rib is arranged on the inner surface of the box cover (1), and the center of the rib is concentric with the box cover through hole weak part.
5. The puncture type separation type catering packaging container according to claim 1, wherein: a wave-shaped elastic sealing ring is arranged on the inner side of the first pressing part (4); a wedge-shaped protrusion is arranged on the outer edge of the ear edge (9) to cooperate with the wave-shaped sealing ring, forming a multi-leakage prevention structure.