Electric breast pump with milk foam prevention function
By combining the design of threaded guide plates and tapered guide plates with airbag rings and locking blocks, the problem of insufficient air bubble separation in electric breast pumps is solved, achieving efficient milk separation and improved comfort and convenience for infants during breastfeeding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI ANMUT MATERNAL & BABY PROD CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-14
Smart Images

Figure CN224484596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of breast pump technology, and in particular to an electric breast pump with anti-foaming function. Background Technology
[0002] Electric breast pumps with anti-foaming function are an important development direction for modern breastfeeding aids. Their core requirement is to collect milk efficiently while minimizing the mixing of foam. Foam can cause the active nutrients in milk to oxidize and become inactive, accelerate fat stratification, and increase the risk of the baby swallowing air.
[0003] Currently, mainstream electric breast pumps mainly use a negative pressure pump to generate periodic suction, which is then transmitted through a tube to the breast pump to extract milk. Existing technologies mostly involve the milk falling directly into the bottle or setting a perforated baffle or mesh at the bottle inlet to physically intercept and block air bubbles.
[0004] However, existing technologies have some shortcomings in anti-foaming effectiveness. During the delivery of breast milk, new bubbles are continuously generated due to turbulent impact and high-speed flow. Existing structures are unable to effectively separate the microbubbles that have been mixed in, resulting in a large amount of foam entering the storage container directly with the breast milk. This not only accelerates the degradation of nutrients but also increases the risk of infant gas. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an electric breast pump with anti-foaming function, which aims to improve the problem that the existing structure is unable to effectively separate the mixed microbubbles, resulting in a large amount of foam directly entering the storage container with the milk. This not only accelerates the degradation of nutrients, but also increases the risk of infant gas.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric breast pump with anti-foaming function, including a breast pump cover, an installation tube fixedly connected to one side of the outer wall of the breast pump cover, a connecting tube provided on the inner wall of the installation tube, a separation chamber fixedly connected to one end of the connecting tube, a flow guiding component provided on the inner wall of the separation chamber, a mounting base fixedly connected to the lower surface of the separation chamber, a threaded ring threadedly connected to the inner wall of the mounting base, and a baby bottle fixedly connected to the lower surface of the threaded ring;
[0007] The flow guiding assembly includes a threaded flow guiding plate, the outer wall of which is fixedly connected to the inner wall of the separation chamber. A threaded ring II is threadedly connected to the inner wall of the separation chamber, and a flow guiding port is fixedly connected to the lower surface of the threaded ring II. A tapered flow guiding plate is provided below the flow guiding port.
[0008] Furthermore, a fixing rod is fixedly connected to the inner wall of the bottle, and one end of the fixing rod is fixedly connected to the surface of the conical guide plate.
[0009] Furthermore, a housing is fixedly connected to the upper surface of the separation chamber, a power module is provided on the inner wall of the housing, and a charging port is fixedly connected to one side of the outer wall of the housing.
[0010] Furthermore, an air pipe is provided on the lower surface of the power module, and an air pipe is provided on one side of the outer wall of the power module.
[0011] Furthermore, one end of the trachea is fixedly connected to a connection port, and one end of the connection port is fixedly connected to an airbag ring, the outer wall of the airbag ring being disposed on the inner wall of the breast pump.
[0012] Furthermore, the outer wall of the mounting tube is provided with a locking hole, and the inner wall of the locking hole is provided with a locking block.
[0013] Furthermore, the card block is fixedly connected to the outer wall of the connecting pipe, and a sealing ring is fixedly connected to the outer wall of the connecting pipe.
[0014] Furthermore, a limiting block is slidably connected to the inner wall of the mounting tube, a sliding rod is fixedly connected to one side of the outer wall of the limiting block, a spring is fixedly connected to one end of the limiting block, and one end of the spring is fixedly connected to the inner wall of the mounting tube.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the milk is rotated and flows tangentially by a spiral guide plate. Utilizing the centrifugal force and flow delay of the spiral path, the bubbles in the milk, due to their low density, accumulate towards the center or top of the spiral, while the milk continues to fall along the wall, thus achieving initial gas-liquid separation. Subsequently, guided by a conical guide plate, the milk forms a laminar flow that adheres to the wall and slowly flows into the bottom of the bottle, thereby avoiding direct impact that generates new bubbles. The dual guide design significantly reduces bubbles in the milk, thus improving the practicality of the device.
[0017] 2. In this utility model, the two-way airbag ring of the air tube inflates to make the breast shield flexibly fit the breast. When the connecting tube is inserted into the installation tube, the locking block squeezes the limiting block to compress the spring. After it is in place, the locking block is locked into the locking hole, and the limiting block rebounds to achieve mechanical limiting, realizing quick installation and removal of the breast shield. The combination of dynamic fitting of the airbag ring and quick-release structure improves the comfort of use and the convenience of cleaning, thereby improving the practicality of the device. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the electric breast pump with anti-foaming function proposed in this utility model.
[0019] Figure 2 This is a schematic diagram of the separation chamber of the electric breast pump with anti-foaming function proposed in this utility model;
[0020] Figure 3This is a schematic diagram of the threaded guide plate portion of the electric breast pump with anti-foaming function proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of the installation tube portion of the electric breast pump with anti-foaming function proposed in this utility model.
[0022] Figure 5 for Figure 4 Enlarged diagram of point A.
[0023] Legend:
[0024] 1. Breast pump cover; 2. Installation tube; 3. Connecting tube; 4. Separation chamber; 5. Mounting base; 6. Threaded ring one; 7. Baby bottle; 8. Threaded guide plate; 9. Threaded ring two; 10. Flow port; 11. Conical guide plate; 12. Fixing rod; 13. Air tube one; 14. Outer shell; 15. Power module; 16. Charging port; 17. Air tube two; 18. Connecting port; 19. Airbag ring; 20. Sealing ring; 21. Locking block; 22. Locking hole; 23. Limiting block; 24. Spring; 25. Sliding rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figures 1-3This utility model provides an embodiment of an electric breast pump with anti-foaming function, including a breast shield 1. The breast shield 1 is used to conform to the breast and serves as the initial contact component for milk collection. An installation tube 2 is fixedly connected to one side of the outer wall of the breast shield 1. A connecting tube 3 is provided on the inner wall of the installation tube 2. A separation chamber 4 is fixedly connected to one end of the connecting tube 3. The separation chamber 4 provides space for gas-liquid separation of milk and is the core cavity structure for achieving the anti-foaming function. A flow guiding component is provided on the inner wall of the separation chamber 4. A mounting base 5 is fixedly connected to the lower surface of the separation chamber 4. A threaded ring 6 is threadedly connected to the inner wall of the mounting base 5. The threaded ring 6 cooperates with the mounting base 5. The current stable and detachable connection between the bottle 7 and the separation chamber 4 is achieved by fixing the bottle 7 to the lower surface of the threaded ring 6. The bottle 7 is made of food-grade PP material and is used for the safe storage of breast milk. This is existing technology and will not be described in detail here. The flow guiding assembly includes a threaded guide plate 8, which forces the breast milk to flow tangentially and rotate, using centrifugal force to concentrate air bubbles towards the center, achieving primary gas-liquid separation and reducing foam contamination. The outer wall of the threaded guide plate 8 is fixedly connected to the inner wall of the separation chamber 4. A threaded ring 9 is threadedly connected to the inner wall of the separation chamber 4. The inner wall of the threaded ring 9 is threadedly connected to the separation chamber 4, and a flow guide port 10 is fixedly connected to its lower surface. 9. The guide port 10 is installed and fixed in the separation chamber 4 through a threaded connection. At the same time, the threaded structure allows for easy disassembly and assembly of the guide port 10, facilitating cleaning and maintenance of the interior of the separation chamber 4 and the guide port 10. The guide port 10 is fixedly connected to the lower surface of the threaded ring 9. A conical guide plate 11 is set below the guide port 10. The guide port 10, together with the conical guide plate 11, guides the milk to flow laminarly down the wall, avoiding direct impact on the bottle 7 and generating new air bubbles, thus completing the secondary anti-foaming function. A fixing rod 12 is fixedly connected to the inner wall of the bottle 7. One end of the fixing rod 12 is fixedly connected to the upper surface of the conical guide plate 11. The outer shell 14 is fixedly connected to the upper surface of the separation chamber 4. The inner wall of the outer shell 14 is provided with a power module 15, and a charging port 16 is fixedly connected to one side of the outer wall of the outer shell 14. An air tube 13 is provided on the lower surface of the power module 15, and an air tube 2 17 is provided on one side of the outer wall of the power module 15. One end of the air tube 2 17 is fixedly connected to a connection port 18, and one end of the connection port 18 is fixedly connected to an airbag ring 19. The airbag ring 19 expands by inflation and flexibly conforms to the breast, improving the seal between the breast pump 1 and the breast, while making the breast pumping process more comfortable and avoiding discomfort caused by hard contact. This achieves the effect of optimizing the breast pumping experience and ensuring a stable negative pressure environment. The outer wall of the airbag ring 19 is set on the inner wall of the breast pump 1.
[0027] Reference Figure 4 and Figure 5The outer wall of the installation tube 2 has a locking hole 22, and the inner wall of the locking hole 22 has a locking block 21. The locking block 21 is fixedly connected to the outer wall of the connecting tube 3. The outer wall of the connecting tube 3 is fixedly connected to a sealing ring 20. The sealing ring 20 is used to fill the gap between the connecting tube 3 and the installation tube 2 to prevent negative pressure leakage and ensure suction efficiency. The inner wall of the installation tube 2 is slidably connected to a limit block 23. A sliding rod 25 is fixedly connected to one side of the outer wall of the limit block 23. A spring 24 is fixedly connected to one end of the limit block 23. One end of the spring 24 is fixedly connected to the inner wall of the installation tube 2. The locking block 21 cooperates with the spring 24 and the limit block 23 to perform compression or rebound movement. When inserted, the locking block 21 squeezes the limit block 23 to compress the spring 24. After it is in place, the limit block 23 rebounds and locks the locking block 21, realizing tool-free disassembly and assembly with one hand, improving cleaning convenience.
[0028] Working principle: When the breast pump 1 is placed against the breast, the power module 15 is activated, creating a negative pressure environment in the separation chamber 4 through the first air tube 13. Simultaneously, the second air tube 17 inflates the air bag ring 19, allowing the breast pump 1 to flexibly conform to the breast, improving comfort and sealing. This achieves a tight seal and negative pressure milk suction. Milk enters the breast pump 1 under negative pressure and flows into the separation chamber 4 through the connecting tube 3. After entering the separation chamber 4, the milk is directed to rotate tangentially by the threaded guide plate 8. Utilizing the centrifugal force and flow delay of the spiral path, air bubbles in the milk, due to their low density, accumulate towards the spiral center or upwards, while the milk continues to fall along the wall, thus achieving initial gas-liquid separation. After milk is expressed, it is guided through the guide port 10 to the conical guide plate 11 inside the bottle 7. Guided by the conical guide plate 11, the milk forms a laminar flow that slowly flows into the bottom of the bottle 7, thus avoiding direct impact and the generation of new air bubbles. The dual guide design significantly reduces air bubbles in the milk. After expressing milk, the bottle 7 can be separated by removing the threaded ring 6 to pour out the milk. In addition, when the connecting tube 3 is inserted into the installation tube 2, the locking block 21 squeezes the limiting block 23 to compress the spring 24. After it is in place, the locking block 21 is locked into the locking hole 22, and the limiting block 23 rebounds to achieve mechanical limiting, thereby realizing the quick assembly and disassembly of the breast pump 1. The structure is simple and the assembly and disassembly do not require tools, making it convenient for daily cleaning and maintenance.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An electric breast pump with anti-foaming function, including a breast shield (1), characterized in that: The breast pump (1) has an installation tube (2) fixedly connected to one side of its outer wall. The installation tube (2) has a connecting tube (3) on its inner wall. One end of the connecting tube (3) is fixedly connected to a separation chamber (4). The separation chamber (4) has a flow guide assembly on its inner wall. The lower surface of the separation chamber (4) is fixedly connected to a mounting base (5). The inner wall of the mounting base (5) is threaded with a threaded ring (6). The lower surface of the threaded ring (6) is fixedly connected to a baby bottle (7). The flow guiding assembly includes a threaded flow guiding plate (8), the outer wall of which is fixedly connected to the inner wall of the separation chamber (4), a threaded ring II (9) is threadedly connected to the inner wall of the separation chamber (4), a flow guiding port (10) is fixedly connected to the lower surface of the threaded ring II (9), and a tapered flow guiding plate (11) is provided below the flow guiding port (10).
2. The electric breast pump with anti-foaming function according to claim 1, characterized in that: The inner wall of the bottle (7) is fixedly connected to a fixing rod (12), one end of which is fixedly connected to the upper surface of the conical guide plate (11).
3. The electric breast pump with anti-foaming function according to claim 1, characterized in that: The upper surface of the separation chamber (4) is fixedly connected to the outer shell (14), the inner wall of the outer shell (14) is provided with a power module (15), and a charging port (16) is fixedly connected to one side of the outer wall of the outer shell (14).
4. The electric breast pump with anti-foaming function according to claim 3, characterized in that: The lower surface of the power module (15) is provided with an air pipe (13), and the outer wall of the power module (15) is provided with an air pipe (17).
5. The electric breast pump with anti-foaming function according to claim 4, characterized in that: One end of the second trachea (17) is fixedly connected to a connection port (18), and one end of the connection port (18) is fixedly connected to an airbag ring (19). The outer wall of the airbag ring (19) is set on the inner wall of the breast pump (1).
6. The electric breast pump with anti-foaming function according to claim 1, characterized in that: The outer wall of the installation tube (2) is provided with a locking hole (22), and the inner wall of the locking hole (22) is provided with a locking block (21).
7. The electric breast pump with anti-foaming function according to claim 6, characterized in that: The card block (21) is fixedly connected to the outer wall of the connecting pipe (3), and a sealing ring (20) is fixedly connected to the outer wall of the connecting pipe (3).
8. The electric breast pump with anti-foaming function according to claim 1, characterized in that: The inner wall of the installation tube (2) is slidably connected to a limiting block (23), and a sliding rod (25) is fixedly connected to one side of the outer wall of the limiting block (23). A spring (24) is fixedly connected to one end of the limiting block (23), and one end of the spring (24) is fixedly connected to the inner wall of the installation tube (2).