Milk powder fresh-keeping vacuum tank

By designing a vacuum container for milk powder preservation, which incorporates vacuuming and timing functions, the problem of milk powder easily spoiling in humid environments has been solved, achieving long-term preservation and hygienic safety of milk powder.

CN223919917UActive Publication Date: 2026-02-17SHENZHEN LEQIN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520696838.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-02-17
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

Existing milk powder cans cannot completely isolate the air after opening, causing the milk powder to easily clump and spoil in a humid environment, affecting its nutritional value and health safety.

Method used

Design a vacuum container for preserving milk powder, which employs a vacuuming mechanism and a gas inlet mechanism. The air inlet is sealed under negative pressure by an I-shaped sealing plug, the inner lid is pressed tightly, the inner cylinder is tilted, and a control panel with a timing function records the interval between milk powder preparations.

Benefits of technology

It enables long-term preservation of milk powder, preventing it from getting damp and spoiling, ensuring the freshness and hygiene of the milk powder, and making it convenient for users to record usage time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a milk powder fresh-keeping vacuum tank which comprises a tank body, the tank body is composed of an outer shell, a hollow layer and a columnar groove, an inner cylinder is placed in the columnar groove, an inner cover is hinged to the upper end of the outer shell, a top cover is installed at the upper end of the inner cover, and a cavity is defined between the inner cover and the top cover; the vacuumizing mechanism comprises an exhaust pipe arranged at the top in the cavity, and a check valve is mounted in the exhaust pipe; the gas inlet mechanism comprises a gas inlet formed in the bottom in the cavity, a strip-shaped opening is formed in the right side wall of the cavity, a rotating shaft is rotationally connected between the front inner wall and the rear inner wall of the cavity, a swing rod is arranged on the rotating shaft in a penetrating mode, and an I-shaped sealing plug is fixedly connected to one end of the swing rod. The milk powder container can contain quantitative milk powder at a time, can be vacuumized after being used every time, is used for preserving and storing the milk powder for a long time, and also has a function of recording the interval time of brewing the milk powder every time.
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Description

Technical Field

[0001] This utility model relates to the field of maternal and infant products technology, and in particular to a vacuum container for preserving milk powder. Background Technology

[0002] In the field of modern infant and adult nutritional supplements, original milk powder is an important food source, and its preservation and storage effects directly affect product quality, nutrient retention, and consumer health and safety. Currently, the widely circulated original milk powder cans generally employ a design that cannot completely isolate the can from air after a single opening. Specifically, when a consumer opens the can lid for the first time, outside air inevitably enters the can. Even if the lid is subsequently closed and sealed, the original air inside the can remains and continues to come into contact with the milk powder.

[0003] While this design flaw may not immediately and significantly affect the quality of milk powder under normal conditions, the problem becomes particularly pronounced in humid weather. The interaction between moisture in the air and the components of the milk powder easily leads to a series of problems, including clumping, spoilage, and microbial growth, preventing the milk powder from maintaining its original freshness and nutritional value for an extended period. For families that need to store milk powder for long periods or purchase large quantities, this not only wastes resources but may also pose a potential threat to consumers' health. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vacuum container for preserving milk powder. This container can hold a fixed amount of milk powder at a time, and can be vacuum-sealed after each use for preserving and storing milk powder for extended periods. It also provides a function to record the interval between each milk powder preparation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vacuum container for preserving milk powder includes a container body comprising an outer shell, a hollow layer, and a columnar groove. An inner cylinder is placed inside the columnar groove. An inner cover is hinged to the upper end of the outer shell, and a top cover is installed on the upper end of the inner cover, forming a cavity between the inner cover and the top cover. A vacuuming mechanism includes a suction pipe located at the top of the cavity, and a check valve is installed inside the suction pipe. A gas inlet mechanism includes an air inlet located at the bottom of the cavity. A strip-shaped opening is provided on the right side wall of the cavity. A rotating shaft is rotatably connected between the front and rear inner walls of the cavity. A rocking rod is threaded through the rotating shaft, and an I-shaped sealing plug is fixedly connected to one end of the rocking rod.

[0007] Preferably, the other end of the rocker arm passes through a strip-shaped opening and is fixedly connected to a pressure ball.

[0008] Preferably, the vertical end of the I-shaped sealing plug penetrates the air inlet, and the two horizontal parts of the I-shaped sealing plug are located above and below the air inlet, respectively.

[0009] Preferably, a sealing ring is installed at the lower end of the inner cover.

[0010] Preferably, both the columnar groove and the inner cylinder are inclined.

[0011] Preferably, a control panel is provided at the upper end of the top cover.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] The vacuum structure allows the I-shaped sealing plug to tightly seal the air inlet under negative pressure, and the inner cover is also compressed, creating a vacuum inside. This improves the storage effect of milk powder and prevents it from getting damp and spoiling. When taking out milk powder, pressing the ball rotates the rocker, causing the I-shaped sealing plug to move upward and open the air inlet, allowing air to enter the cavity. Its special design prevents air from blowing directly onto the milk powder. In addition, the control panel has a timer function that can record the interval between each milk powder preparation, a design that helps users understand the freshness of the milk powder. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a vacuum container for preserving milk powder proposed in this utility model;

[0015] Figure 2 for Figure 1 A cross-sectional schematic diagram;

[0016] Figure 3 This is a bottom view of the inner cover;

[0017] Figure 4 This is a top view of the top cover;

[0018] Figure 5 This is a schematic diagram showing the separation of the tank body and the inner cylinder;

[0019] Figure 6 A sectional view showing the connection between the inner cover and the top cover.

[0020] In the diagram: 1 Outer shell, 2 Pressing ball, 3 Inner cover, 4 Top cover, 5 Inner cylinder, 6 Hollow layer, 7 Air inlet, 8 Sealing ring, 9 I-shaped sealing plug, 10 Rocking rod, 11 Air extraction pipe, 12 Cavity, 13 Control panel, 14 Strip-shaped opening. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-6 A vacuum container for preserving milk powder includes a container body, which is composed of an outer shell 1, a hollow layer 6, and a columnar groove. An inner cylinder 5 is placed inside the columnar groove. Both the columnar groove and the inner cylinder 5 are inclined. An inner cover 3 is hinged to the upper end of the outer shell 1. A sealing ring 8 is installed at the lower end of the inner cover 3. A top cover 4 is installed at the upper end of the inner cover 3. A cavity 12 is formed between the inner cover 3 and the top cover 4. A control panel 13 is provided at the upper end of the top cover 4. The control panel 13 has a timing function, which can record the interval between milk powder dispensing.

[0023] It also includes a vacuum pumping mechanism, which includes an air extraction pipe 11 located at the top of the cavity 12. A check valve is installed inside the air extraction pipe 11. Furthermore, a vacuum pump (not shown) is installed inside the cavity 12, with its inlet end connected to the air extraction pipe 11. By starting the vacuum pump, the inside of the columnar groove can be evacuated into a vacuum.

[0024] It also includes a gas inlet mechanism, which includes an air inlet 7 at the bottom of the cavity 12, a strip-shaped opening 14 on the right side wall of the cavity 12, and a rotating shaft rotatably connected between the front and rear inner walls of the cavity 12, with a rocking rod 10 passing through the rotating shaft.

[0025] One end of the rocker arm 10 is fixedly connected to an I-shaped sealing plug 9, and the other end of the rocker arm 10 passes through the strip-shaped opening 14 and is fixedly connected to a pressure ball 2. The vertical end of the I-shaped sealing plug 9 passes through the air inlet 7, and the two horizontal parts of the I-shaped sealing plug 9 are located above and below the air inlet 7, respectively. In the sealing state, the lower end of the upper horizontal part of the I-shaped sealing plug 9 contacts the bottom of the cavity 12. When in contact and sealed, if... Figure 6 As shown.

[0026] In this invention, when no vacuuming operation is performed, the inside of the tank is under normal pressure. The inner cylinder 5 contains the original milk powder can or milk powder that has already been poured in. The user starts the vacuum pump (not shown) located inside the cavity 12 by operating the control panel 13 (which has a timer function). The air inlet of the vacuum pump is connected to the suction pipe 11 located at the top of the cavity 12. A check valve is installed in the suction pipe 11 to ensure unidirectional gas flow and prevent backflow of outside air after vacuuming. The vacuum pump starts working and extracts the air in the cylindrical groove of the tank (the space where the inner cylinder 5 is located) through the suction pipe 11, so that a vacuum environment is formed inside the cylindrical groove. After vacuuming is completed, the I-shaped sealing plug 9 is in a sealed state and is tightly sealed under negative pressure. Its vertical end penetrates the air inlet 7, and the two horizontal parts are located above and below the air inlet 7 respectively. The lower end of the upper horizontal part is in close contact with the bottom of the cavity 12, effectively preventing outside air from entering the tank. In addition, the inner cover 3 is also tightly pressed under negative pressure.

[0027] When it is necessary to open the can to take out milk powder, the user presses the actuating ball 2, which causes the rocker rod 10 to rotate around the pivot. One end of the rocker rod 10 is fixedly connected to the I-shaped sealing plug 9. As the rocker rod 10 rotates, the I-shaped sealing plug 9 moves upward, and the air inlet 7 is opened, allowing outside air to enter the cavity 12. Due to the special design of the I-shaped sealing plug 9, the air will not blow directly onto the milk powder when it enters the cavity 12, reducing the dust generated by the air flow. After the air inlet 7 has been open for a period of time, the air pressure inside the can reaches equilibrium with the outside air pressure, and the user can easily open the inner lid 3 and take out the required amount of milk powder for preparation.

[0028] The control panel 13 features a timer function, recording the interval between each formula preparation. This design helps users monitor the freshness of the formula, ensuring the baby receives fresh and safe milk. The inner container 5 can be easily removed from the main container, allowing users to easily place the original formula can into the inner container 5 or pour the formula directly into it. Furthermore, removing the inner container 5 facilitates cleaning and sterilization of the can's interior, ensuring the hygiene and safety of the formula.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum container for preserving milk powder, characterized in that, include: The tank body is composed of an outer shell (1), a hollow layer (6) and a columnar groove. An inner cylinder (5) is placed in the columnar groove. An inner cover (3) is hinged to the upper end of the outer shell (1). A top cover (4) is installed on the upper end of the inner cover (3). A cavity (12) is formed between the inner cover (3) and the top cover (4). A vacuuming mechanism, the vacuuming mechanism including an air extraction pipe (11) opened at the top of the cavity (12), and a check valve installed in the air extraction pipe (11); The gas inlet mechanism includes an air inlet (7) at the bottom of the cavity (12), a strip-shaped opening (14) on the right side wall of the cavity (12), a rotating shaft rotatably connecting the front and rear inner walls of the cavity (12), a rocking rod (10) passing through the rotating shaft, and an I-shaped sealing plug (9) fixedly connected to one end of the rocking rod (10).

2. The vacuum container for preserving milk powder according to claim 1, characterized in that, The other end of the rocker arm (10) passes through the strip-shaped opening (14) and is fixedly connected to the pressure ball (2).

3. A vacuum container for preserving milk powder according to claim 1, characterized in that, The vertical end of the I-shaped sealing plug (9) passes through the air inlet (7), and the two horizontal parts of the I-shaped sealing plug (9) are located above and below the air inlet (7), respectively.

4. A vacuum container for preserving milk powder according to claim 1, characterized in that, A sealing ring (8) is installed at the lower end of the inner cover (3).

5. A vacuum container for preserving milk powder according to claim 1, characterized in that, Both the columnar groove and the inner cylinder (5) are inclined.

6. A vacuum container for preserving milk powder according to claim 1, characterized in that, The top cover (4) is provided with a control panel (13) at its upper end.