Leakage-proof packaging box

By introducing water injection chamber, water inlet pipe and multi-layer sealing structure into the food packaging box, the problems of poor sealing and insufficient insulation are solved, and the effect of preventing soup leakage and long-term insulation is achieved, which improves the user experience and practicality of the packaging box.

CN223187946UActive Publication Date: 2025-08-05HENAN MURUI PACKAGING CO LTD
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Patent Information

Application Number
CN202422577707.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-08-05
Estimated Expiration
2034-10-24

AI Technical Summary

Technical Problem

When existing food packaging boxes store foods containing soup, the sealing effect is poor and easy to leak, and the insulation effect is poor in cold weather, affecting the aesthetics and taste of the food.

Method used

A leak-proof packaging box is designed, including a water injection chamber, water inlet pipe, dosing box, sealing gasket and sealing cover. It is heat-insulating by injecting hot water and using a multi-layer sealing structure to prevent the soup from leaking, and combines the insulation pad and support seat to improve the convenience and stability of use.

Benefits of technology

Effectively prevent soup leakage, maintain the aesthetics and taste integrity of the food, and provide long-term insulation in cold weather, improving user experience and practicality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223187946U_ABST
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Abstract

The utility model belongs to the technical field of food packaging boxes, and particularly relates to a leakage-proof packaging box which comprises a box body, a water injection cavity is formed in the box body, one side of the outer portion of the box body extends into the water injection cavity to be fixedly connected with a water inlet pipe, a batching box is arranged at the top of the box body, and a first sealing gasket is fixedly connected to the bottom of the batching box. A limiting block is fixedly connected to the bottom of the batching box and located on the inner side of the first sealing gasket, a second sealing gasket is fixedly connected to the bottom of the limiting block, and a sealing cover is in threaded connection to the top of the box body; the utility model provides a leakage-proof packaging box which solves the problems that in the prior art, the packaging box is sealed through a single sealing cover, the sealing effect is not good, when food containing soup is stored, leakage is prone to being generated in the meal delivery process, the attractiveness of packaging and the integrity of food taste are affected, and the packaging box is not convenient to use. The heat preservation effect on the food is poor in cold weather, so that the food is easy to cool, and the dining experience is greatly reduced.
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Description

Technical Field

[0001] The utility model belongs to the field of food packaging boxes, in particular to a leak-proof packaging box. Background Art

[0002] Food packaging boxes are containers specially designed to store, protect and transport food. When storing food containing soup, the leak-proof performance of the packaging box is crucial.

[0003] In the prior art, most packaging boxes are sealed using a single sealing cover, which has a poor sealing effect. When storing food containing soup, leakage is likely to occur during delivery, affecting the aesthetics of the packaging and the integrity of the food taste. In addition, the food insulation effect is poor in cold weather, which easily causes the food to cool down, thereby greatly reducing the dining experience. Utility Model Content

[0004] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a leak-proof packaging box.

[0005] The technical solution of the present utility model is as follows: a leak-proof packaging box, comprising a box body, a water injection cavity is opened inside the box body, an outer side of the box body extends to the inside of the water injection cavity and is fixedly connected to a water inlet pipe, a mixing box is provided on the top of the box body, a first sealing gasket is fixedly connected to the bottom of the mixing box, a limiting block is fixedly connected to the bottom of the mixing box and located on the inner side of the first sealing gasket, a second sealing gasket is fixedly connected to the bottom of the limiting block, and a sealing cover is threadedly connected to the top of the box body.

[0006] As a preferred embodiment, a limiting groove cooperating with the limiting block is provided inside the box body and above the water injection cavity, and a one-way valve is installed inside the water inlet pipe.

[0007] As a preferred embodiment, the bottom of the sealing cover is rotatably connected to a limiting frame, the bottom of the limiting frame is slidably connected to a pressure plate, and a spring is equidistantly provided between the top of the pressure plate and the inner wall of the limiting frame.

[0008] As a preferred embodiment, the bottom of the box body extends to the interior of the water injection cavity and is fixedly connected to a water outlet pipe, and the bottom of the water outlet pipe is threadedly connected to a screw cap.

[0009] As a preferred embodiment, a heat insulating pad is fixedly connected to the outside of the box body and located below the water inlet pipe, and the heat insulating pad is made of silicone material.

[0010] As a preferred embodiment, a support base is fixedly connected to the bottom of the box body and located outside the water outlet pipe, and the support base is made of rubber material.

[0011] The beneficial effects of the utility model are as follows:

[0012] The device can store bagged ingredients for food through the provided ingredient box, which greatly improves the convenience of use and avoids loss. The first sealing gasket and the second sealing gasket at the bottom of the ingredient box can seal the box body to prevent the soup contained in the food from leaking, thereby improving the leak-proof performance of the box body. Hot water can be injected into the water injection chamber to keep the food warm, thereby further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a bottom view of the utility model;

[0016] Figure 3 It is a cross-sectional view of the utility model;

[0017] Figure 4 It is a cross-sectional view of the ingredient box in the utility model;

[0018] Figure 5 For the utility model Figure 3 Enlarged view of point A in the middle.

[0019] In the figure: 1. box body; 2. water injection chamber; 3. water inlet pipe; 4. ingredient box; 5. first sealing gasket; 6. limit block; 7. second sealing gasket; 8. limit groove; 9. sealing cover; 10. limit frame; 11. pressure plate; 12. spring; 13. water outlet pipe; 14. screw cap; 15. thermal insulation pad. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1-5 A leak-proof packaging box includes a box body 1, a water injection cavity 2 is opened inside the box body 1, a water inlet pipe 3 is fixedly connected to the inside of the water injection cavity 2 on one side of the outside of the box body 1, a material box 4 is provided on the top of the box body 1, a first sealing gasket 5 is fixedly connected to the bottom of the material box 4, a limiting block 6 is fixedly connected to the inner side of the first sealing gasket 5 at the bottom of the material box 4, a second sealing gasket 7 is fixedly connected to the bottom of the limiting block 6, and a sealing cover 9 is threadedly connected to the top of the box body 1.

[0022] Specifically, a limiting groove 8 that matches the limiting block 6 is provided inside the box body 1 and above the water injection chamber 2 , and a one-way valve is installed inside the water inlet pipe 3 .

[0023] Through the above technical solution, food can be stored through the box body 1, and the bagged ingredients for the food are placed inside the ingredient box 4, and then the ingredient box 4 is placed inside the box body 1, and the limiting block 6 is inserted into the inside of the limiting groove 8, so that the second sealing gasket 7 can be tightly attached to the inner wall of the limiting groove 8, and the first sealing gasket 5 can be tightly attached to the top of the box body 1, thereby improving the sealing of the box body 1, preventing the soup contained in the food from leaking, and improving the leak-proof performance of the box body 1. After the food and ingredients are placed, the sealing cover 9 is tightly closed to complete the packaging and storage of the food. When the food needs to be kept warm in cold weather, The water inlet pipe 3 injects hot water into the water injection chamber 2, which can continuously provide heat to the interior of the box body 1 for a long time, thereby achieving the purpose of keeping the food warm, improving the practicality of the device. The device can store the bagged ingredients for the food through the set ingredient box 4, which greatly improves the convenience of use and avoids loss. The first sealing gasket 5 and the second sealing gasket 7 at the bottom of the ingredient box 4 can seal the box body 1 to prevent the soup contained in the food from leaking, thereby improving the leak-proof performance of the box body 1, and by injecting hot water into the water injection chamber 2, the food can be kept warm, thereby further improving the practicality of the device.

[0024] Specifically, the bottom of the sealing cover 9 is rotatably connected to the limiting frame 10 , the bottom of the limiting frame 10 is slidably connected to the pressing plate 11 , and a spring 12 is equidistantly provided between the top of the pressing plate 11 and the inner wall of the limiting frame 10 .

[0025] Through the above technical solution, when the sealing cover 9 is tightened, the pressure plate 11 in the limit frame 10 can be driven to press down the ingredients in the ingredient box 4. The rebound force of the spring 12 can press the ingredients tightly, while avoiding damage to the bagged ingredients. After the bagged ingredients are pressed tightly, the ingredients in the ingredient box 4 can be prevented from sliding around when carrying the packaging box, thereby improving the user experience.

[0026] Specifically, the bottom of the box body 1 extends to the inside of the water injection chamber 2 and is fixedly connected to a water outlet pipe 13 , and the bottom of the water outlet pipe 13 is threadedly connected to a screw cap 14 .

[0027] With the above technical solution, when the temperature of the hot water inside the water injection chamber 2 drops and cannot provide heat preservation, the rotary cover 14 can be unscrewed to discharge the water through the water outlet pipe 13, which is more convenient to use.

[0028] Specifically, an insulation pad 15 is fixedly connected to the outside of the box body 1 and located below the water inlet pipe 3. The insulation pad 15 is made of silicone material. A support seat is fixedly connected to the bottom of the box body 1 and located outside the water outlet pipe 13. The support seat is made of rubber material.

[0029] Through the above technical solution, the provided heat insulating pad 15 can facilitate the user to hold the box body 1, preventing food and hot water from scalding the user's hands, and the provided support seat can improve the stability of the box body 1 when placed.

[0030] When the food is in the container 1, the lid 9 is closed and the food packaging is in a sealed state, thereby preventing the food from leaking out. The first sealing gasket 5 and the second sealing gasket 7 can seal the box body 1, preventing the soup contained in the food from leaking, thereby improving the leak-proof performance of the box body 1, and by injecting hot water into the water injection chamber 2, the food can be kept warm, thereby further improving the practicality of the device. When the sealing cover 9 is closed, the pressure plate 11 in the limit frame 10 can be driven to press the ingredients in the ingredient box 4 downward, and the rebound force of the spring 12 can compress the ingredients, while avoiding damage to the bagged ingredients. After the bagged ingredients are compressed, the ingredients in the ingredient box 4 can be prevented from sliding freely when carrying the packaging box, thereby improving the user experience. When the hot water temperature inside the water injection chamber 2 drops and cannot provide insulation, the screw cap 14 can be unscrewed and the water can be discharged through the water outlet pipe 13, which is more convenient to use. The provided heat insulation pad 15 can facilitate the user to hold the box body 1, preventing food and hot water from scalding the user's hands, and the provided support seat can improve the stability of the box body 1 when placed.

[0031] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof packaging box, comprising a box body (1), characterized in that: A water injection cavity (2) is provided inside the box body (1), and a water inlet pipe (3) is fixedly connected to the inside of the water injection cavity (2) on one side of the outside of the box body (1), and a mixing box (4) is provided on the top of the box body (1), and a first sealing gasket (5) is fixedly connected to the bottom of the mixing box (4), and a limiting block (6) is fixedly connected to the bottom of the mixing box (4) and located inside the first sealing gasket (5), and a second sealing gasket (7) is fixedly connected to the bottom of the limiting block (6), and a sealing cover (9) is threadedly connected to the top of the box body (1).

2. A leak-proof packaging box according to claim 1, characterized in that: A limiting groove (8) cooperating with the limiting block (6) is provided inside the box body (1) and above the water injection cavity (2), and a one-way valve is installed inside the water inlet pipe (3).

3. The leak-proof packaging box according to claim 1, characterized in that: The bottom of the sealing cover (9) is rotatably connected to a limiting frame (10), the bottom of the limiting frame (10) is slidably connected to a pressure plate (11), and a spring (12) is equidistantly provided between the top of the pressure plate (11) and the inner wall of the limiting frame (10).

4. The leak-proof packaging box according to claim 1, characterized in that: The bottom of the box body (1) extends to the interior of the water injection chamber (2) and is fixedly connected to a water outlet pipe (13), and the bottom of the water outlet pipe (13) is threadedly connected to a screw cap (14).

5. The leak-proof packaging box according to claim 1, characterized in that: A heat insulating pad (15) is fixedly connected to the outside of the box body (1) and located below the water inlet pipe (3); the heat insulating pad (15) is made of a silicone material.

6. The leak-proof packaging box according to claim 4, characterized in that: A support base is fixedly connected to the bottom of the box body (1) and located outside the water outlet pipe (13), and the support base is made of rubber material.