Breast pump with emulsion output end opening and closing structure

Abstract

The utility model relates to the technical field of mother and baby products, and provides a breast pump with an emulsion output end opening and closing structure, which comprises a main machine, a container, a driver and a three-way assembly with three ends communicated with one another. The first end of the three-way assembly is in butt joint with the human breast, the second end is in butt joint with the air pressure adjusting device, the third end is in butt joint with the container, a switch piece is arranged at the third end of the three-way assembly, and the driver and the switch piece are matched to open and close the third end of the three-way assembly. The opening and closing actions of the switch piece at the third end of the three-way assembly are accurately controlled by the driver, rapid connection and disconnection between the breast pumping channel and the container are achieved, and therefore the negative pressure generation efficiency is optimized.

Description

Technical Field

[0001] This utility model relates to the technical field of maternal and infant products, specifically to a breast pump with an opening and closing structure for the milk output end. Background Technology

[0002] Current breast pumps typically use a three-way connector as their core structural component. One end of this connector connects to a deformable air bladder, the other end connects to the milk expression channel (corresponding to the human breast), and the third end connects to a storage container. An air pump generates negative pressure within the milk expression channel by adjusting the air pressure changes inside the air bladder, thus achieving the milk expression function. This traditional structure has the following inherent drawbacks:

[0003] 1. Structural complexity issues;

[0004] 2. The inclusion of an airbag assembly as a pressure transmission medium increases the number of parts and assembly complexity;

[0005] 3. The airbag's deformation response is slow, making it difficult to achieve a high-frequency breast pumping rhythm;

[0006] 4. There is a lag in the transmission of airbag pressure, which affects the comfort of breastfeeding;

[0007] To address the aforementioned issues, an innovative simplified solution is proposed that eliminates intermediate transmission components such as airbags. By directly installing an intelligent opening and closing structure at the connection between the breast pump channel and the container, the air pressure regulating device is directly connected to the breast pump channel, eliminating intermediate transmission links. Utility Model Content

[0008] This invention proposes a breast pump with an open / closed milk outlet. By eliminating the traditional airbag assembly, this breast pump simplifies the overall structure, reduces the number of parts, lowers assembly complexity, and improves the adjustability of the pumping rhythm. The main unit's air pressure regulating device is directly connected to the second end of the three-way assembly, eliminating pressure transmission lag and improving response speed. The opening and closing action of the switch at the third end of the three-way assembly is precisely controlled by a driver, achieving rapid connection and disconnection between the milk channel and the container, thereby optimizing negative pressure generation efficiency. This design effectively replaces a one-way valve; during milk expression, the third end of the three-way assembly is fully opened by the switch, increasing the milk discharge rate.

[0009] A breast pump with a milk output opening and closing structure designed for this purpose includes a main unit, a container, a driver, and a three-way assembly with three interconnected ends. The main unit is equipped with an air pressure regulating device. The first end of the three-way assembly is connected to the human breast, the second end is connected to the air pressure regulating device, and the third end is connected to the container. The third end of the three-way assembly is equipped with a switch. The driver and the switch cooperate to open and close the third end of the three-way assembly.

[0010] The driver is a driving component for generating a magnetic field, and the switch is a magnetic field mating component. The driving component and the switch, which is a magnetic field mating component, cooperate to open and close the third end of the three-way assembly.

[0011] The driving component is a suction cup electromagnet.

[0012] The driver is a motor assembly or electromagnet with a drive shaft. The drive shaft of the driver is directly or indirectly connected with the switch to open and close the third end of the three-way assembly.

[0013] The drive shaft of the driver is provided with a transmission structure that indirectly cooperates with the switching element.

[0014] The three-way assembly includes a milk suction component with a milk suction chamber, and a connecting sleeve with flexibility and fitted outside the milk suction chamber.

[0015] The milk inlet of the milk suction chamber is used as the first end of the three-way assembly, the side of the milk suction chamber is provided with a vent hole used as the second end of the three-way assembly, the milk outlet of the milk suction chamber is used as the third end of the three-way assembly, the connecting sleeve is provided with a vent hole corresponding to the vent hole, and the container is provided with a perforation communicating with the vent hole.

[0016] A sealing bevel is provided between the switch and the milk inlet of the milk suction chamber.

[0017] The switch is inclined and has a magnetic mating component inside. The driver is installed inside the main unit, which has an inclined mounting position close to the switch. The driver is installed on the inclined mounting position.

[0018] The three-way assembly includes a milk suction component with a milk suction chamber. When the milk output end of the milk suction chamber is closed by the driver and the switch, the air pressure regulating device operates and draws in the gas inside the milk suction chamber to create a negative pressure in the milk suction chamber and realize the milk suction action of the milk suction component.

[0019] The milk suction device is detachably installed on the container. The container has a contoured mounting cavity on the outer side of the milk suction chamber. The switch has a connecting sleeve fitted on the outer side of the milk suction chamber. The connecting sleeve has a limiting block on the lower outer side of the milk suction chamber inside the container. The milk suction device is installed on the container, and the outer side of the milk suction chamber is installed on the inner side of the contoured mounting cavity. The connecting sleeve abuts against the inner wall of the mounting cavity, and the lower outer side of the milk suction chamber is located inside the limiting block.

[0020] The container is detachably installed on the main unit. The main unit is provided with a limiting step, a guide mounting slope and a connection hole. The air pressure regulating device is provided with a pipe connected to the connection hole. The container is provided with a connecting column with built-in perforation. The container is provided with a positioning step and a positioning slope.

[0021] The container is installed on the main unit, the positioning step abuts against the limiting step, the connecting column is inserted into the connecting hole, and the positioning inclined surface abuts against the installation inclined surface;

[0022] A sealing element is provided between the connecting column and the connecting hole.

[0023] The main unit includes a cover and a housing, with a compartment formed between the cover and the housing for installing a pressure regulating device and a drive.

[0024] The beneficial technical effects of this utility model are as follows:

[0025] This breast pump with a milk outlet opening and closing mechanism simplifies the overall structure by eliminating the traditional airbag assembly, reducing the number of parts and assembly complexity, while also improving the adjustability of the pumping rhythm. The main unit's air pressure regulating device is directly connected to the second end of the three-way assembly, eliminating pressure transmission lag and improving response speed. The opening and closing action of the switch at the third end of the three-way assembly is precisely controlled by the actuator, achieving rapid connection and disconnection between the milk channel and the container, thereby optimizing negative pressure generation efficiency. This design effectively replaces the one-way valve; during milk expression, the third end of the three-way assembly is fully opened by the switch, increasing the milk discharge rate. Because the air pressure regulating device directly interacts with the milk channel, energy loss caused by the deformation of the traditional airbag is avoided, making the pumping process more efficient and comfortable. Furthermore, the integrated design of the three-way assembly and the elimination of deformable components such as the airbag further reduce the product size. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 This is a schematic diagram of the breast pump's milk output end in the closed state according to an embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the breast pump's milk output end in the open state according to an embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram showing the assembled and disassembled structure of a breast pump according to an embodiment of the present invention.

[0030] Figure 4 This is an exploded view of the assembly of the breast pump and the deformable component in another orientation according to an embodiment of the present invention.

[0031] Figure 5 This is an exploded view of the assembly structure of a breast pump according to an embodiment of the present invention.

[0032] Figure 6 This is an exploded view of the assembly structure of a breast pump according to another embodiment of the present invention.

[0033] Figure 7 This is a three-dimensional cross-sectional structural diagram of a disassembled breast pump according to an embodiment of the present invention.

[0034] Figure 8 This is a schematic diagram of the three-dimensional cross-sectional structure of a breast pump according to an embodiment of the present invention. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0036] See Figures 1-8 A breast pump with a milk output opening and closing structure includes a main unit 1, a container 2, a driver 3, and a three-way assembly 4 with three interconnected ends. The main unit 1 is equipped with an air pressure regulating device 5. The first end of the three-way assembly 4 is connected to the human breast, the second end is connected to the air pressure regulating device 5, and the third end is connected to the container 2. The third end of the three-way assembly 4 is equipped with a switch 6. The driver 3 and the switch 6 cooperate to open and close the third end of the three-way assembly 4.

[0037] This breast pump with a milk outlet opening and closing mechanism simplifies the overall structure, reduces the number of parts, and lowers assembly complexity by eliminating the traditional airbag assembly. The air pressure regulating device 5 of the main unit 1 is directly connected to the second end of the three-way assembly 4, eliminating pressure transmission lag and improving response speed. The opening and closing action of the switch 6 at the third end of the three-way assembly 4 is precisely controlled by the driver 3, achieving rapid connection and disconnection between the milk expression channel and the container 2, thereby optimizing negative pressure generation efficiency. This design effectively replaces the one-way valve, increasing the milk discharge speed as the third end of the three-way assembly is fully opened by the switch. Because the air pressure regulating device 5 directly interacts with the milk expression channel, energy loss caused by the deformation of the traditional airbag is avoided, making the milk expression process more efficient and comfortable. Furthermore, the integrated design of the three-way assembly 4 and the elimination of deformable components such as the airbag further reduce the product size.

[0038] When the driver 3 and the switch 6 work together to close the third end of the three-way assembly 4, the breast pump can perform milk pumping. When the driver 3 and the switch 6 work together to open the third end of the three-way assembly 4, the breast pump can perform milk expression.

[0039] The driver 3 is a driving component for generating a magnetic field, and the switch 6 is a magnetic field mating component. The driving component and the switch 6, which is a magnetic field mating component, cooperate to open and close the third end of the three-way assembly 4.

[0040] The driving component is a suction cup electromagnet, which can be composed of coils or the like.

[0041] The magnetically driven switch 6 significantly improves the reliability and response speed of the opening and closing structure. The actuator 3, acting as the driving component, generates a magnetic field, which, in conjunction with the magnetic switch 6, achieves non-contact control, avoiding mechanical wear issues. Since the opening and closing action of the magnetically coupled switch 6 requires no transmission connection with the actuator 3, the internal structure of the product is simplified. Furthermore, the magnetic drive method reduces noise, and the flexibility of the switch 6 simplifies the sealing requirements between the third end of the tee assembly 4 and the switch 6.

[0042] When the switch 6 is a magnetic field mating component and the driver 3 is a driving component for generating a magnetic field, the driver 3 attracts the switch 6 when it is energized, and the third end of the tee assembly 4 is opened. When the driver 3 is de-energized, the switch 6 is reset and the third end of the tee assembly 4 is closed. Alternatively, by switching the forward and reverse currents, the driver 3 can attract or release the switch 6.

[0043] Alternatively, the driver 3 may be a motor assembly or electromagnet with a drive shaft, and the drive shaft of the driver 3 may directly or indirectly cooperate with the switch 6 to open and close the third end of the three-way assembly 4.

[0044] The drive shaft of the driver 3 is equipped with a transmission structure that indirectly cooperates with the switch 6. The transmission structure can be a connecting rod, a pull rope, or a gear. For example, the drive shaft of the driver 3 can be configured as a telescopic shaft, which directly or indirectly cooperates with the switch 6.

[0045] High-precision linear control of the switch 6 is achieved through a drive shaft driven by a motor assembly or electromagnetic components. The drive shaft of the driver 3 can directly or indirectly drive the switch 6 through a transmission structure, ensuring the sealing and response speed of the third end of the tee assembly 4. The drive shaft of the driver 3 allows adjustment of the opening and closing stroke of the switch 6.

[0046] The three-way assembly 4 includes a milk suction component 9 with a milk suction chamber 8, and a connecting sleeve 10 with the switching component 6. The connecting sleeve 10 is flexible and is fitted on the outside of the milk suction chamber 8.

[0047] The design of the milk suction component 9 and the connecting sleeve 10 enables a flexible connection between the switch component 6 and the milk suction component 9. The flexible material of the connecting sleeve 10 allows it to fit tightly against the outside of the milk suction chamber 8. Under the action of the driver 3, the switch component 6 connected to the connecting sleeve 10 can open and close the third end, avoiding wear problems of rigid components and extending the product's service life. The connecting sleeve 10 of the milk suction component 9 is also installed on the container 2. Due to the flexibility of the connecting sleeve 10, it allows for a detachable connection between the container 2 and the milk suction component 9. This makes the milk suction component 9 easy to disassemble and clean, meeting hygiene requirements, and eliminates the need for precise alignment during assembly, reducing production costs.

[0048] The milk inlet of the milk suction chamber 8 is used as the first end of the three-way assembly 4. The side of the milk suction chamber 8 is provided with a vent hole 11, which is used as the second end of the three-way assembly 4. The milk outlet of the milk suction chamber 8 is used as the third end of the three-way assembly 4. The connecting sleeve 10 is provided with a vent hole 12 corresponding to the vent hole 11. The container 2 is provided with a perforation 16 that communicates with the vent hole 12.

[0049] A sealing bevel 13 is provided between the switch 6 and the milk inlet end of the milk suction chamber 8.

[0050] The three-end design of the milk suction chamber 8 optimizes the airflow and milk path. The connection between the vent 11 and the air outlet 12 ensures that the pressure regulating device 5 acts directly on the milk suction chamber 8. The switch 6 is connected to the milk inlet of the milk suction chamber 8 through a sealing bevel 13. The pressure regulating device 5 keeps the milk suction chamber 8 under negative pressure, ensuring that the switch 6 seals the milk outlet of the milk suction chamber 8. The alignment design of the perforation 16 and the air outlet 12 simplifies the installation and disassembly of the container 2 and the milk suction component 9, avoiding direct contact between the two holes, and making it easy to remove and install the milk suction component 9 on the container 2.

[0051] The switch 6 is inclined and has a magnetic mating part 14 inside. The driver 3 is installed inside the host 1. The host 1 has a mounting angle 15 that is close to the switch 6, and the driver 3 is installed on the mounting angle 15.

[0052] The tilted switch 6, in conjunction with the mounting angle 15, optimizes the transmission efficiency of magnetic or mechanical forces. This allows the switch 6 to respond quickly and cooperate with the driver 3 during operation.

[0053] The three-way assembly 4 includes a milk suction component 9 with a milk suction chamber 8. When the milk output end of the milk suction chamber 8 is closed by the driver 3 and the switch 6, the air pressure regulating device 5 operates and draws in the gas inside the milk suction chamber 8, so that the milk suction chamber 8 forms a negative pressure and realizes the milk suction action of the milk suction component 9.

[0054] The negative pressure formation mechanism of the milk suction chamber 8 is directly achieved through the air pressure regulating device 5. After the actuator 3 and the switch 6 cooperate to close the milk output end of the milk suction chamber 8, the air pressure regulating device 5 directly draws gas from the milk suction chamber 8, avoiding the energy loss of traditional airbags. The negative pressure generation speed is faster and more stable. The air pressure regulating device 5 uses an air pump, and since the airbag is eliminated, the power of the air pump can be reduced.

[0055] The milk suction component 9 is detachably installed on the container 2. The container 2 has a contoured mounting cavity 17 on the outer side of the milk suction chamber 8. The switch component 6 has a connecting sleeve 10 sleeved on the outer side of the milk suction chamber 8. The connecting sleeve 10 and the container 2 have a limiting block 18 on the lower outer side of the milk suction chamber 8. The milk suction component 9 is installed on the container 2, the outer side of the milk suction chamber 8 is installed on the inner side of the contoured mounting cavity 17, the connecting sleeve 10 abuts against the inner wall of the mounting cavity 17, and the lower outer side of the milk suction chamber 8 is located inside the limiting block 18.

[0056] The conformal mounting cavity 17 and the limiting block 18 work together to achieve rapid and precise positioning of the milk suction component 9. The abutment between the connecting sleeve 10 and the inner wall of the mounting cavity 17 forms an auxiliary seal, while the limiting block 18 prevents the milk suction cavity 8 from shifting and ensures that the vent hole 12 is aligned with the perforation 16. The modular design facilitates disassembly and cleaning, and no tools are required for assembling and disassembling the milk suction component 9 from the container 2, making it convenient for users.

[0057] The container 2 is detachably installed on the host 1. The host 1 is provided with a limiting step 19, a guide mounting slope 20 and a connecting hole 21. The air pressure regulating device 5 is provided with a pipe connected to the connecting hole 21. The container 2 is provided with a connecting post 22 with an internal through hole 16. The container 2 is provided with a positioning step 23 and a positioning slope 24.

[0058] The container 2 is installed on the host 1, the positioning step 23 abuts against the limiting step 19, the connecting post 22 is inserted into the connecting hole 21, and the positioning inclined surface 24 abuts against the mounting inclined surface 20.

[0059] A sealing element 25 is provided between the connecting post 22 and the connecting hole 21.

[0060] In this embodiment, the sealing element 25 is sleeved on the connecting post 22, and the outer side of the main unit 1 is provided with a sealing groove for installing the sealing element 25. The sealing element 25 is fixed on the sealing groove, or the sealing element 25 is installed and removed from the main unit 1 together with the container 2.

[0061] The plug-in design of container 2 and main unit 1 improves assembly efficiency and sealing. The cooperation of limiting step 19 and positioning step 23 prevents over-insertion, while the guide mounting ramp 20 guides the positioning ramp 24 to quickly align. The plug-in connection between connecting post 22 and connecting hole 21 is sealed by seal 25 to prevent leakage and ensure the reliable operation of the air circuit of pressure regulating device 5. This design also allows for disassembly and easy daily cleaning of container 2.

[0062] The main unit 1 includes a cover 26 and a housing 27, with a compartment 7 formed between the cover 26 and the housing 27 for installing the air pressure regulating device 5 and the driver 3.

[0063] The separate design of the cover 26 and housing 27 in the engine compartment 7 facilitates the maintenance of the air pressure regulator 5 and the actuator 3. The enclosed structure of the engine compartment 7 reduces operating noise. The cover 26 can be quickly opened for inspection or replacement of parts. The cover 26 and housing 27 are connected and fastened together by snap-fit ​​or other means.

[0064] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A breast pump with an opening and closing structure for the milk outlet, characterized in that: It includes a main unit (1), a container (2), a driver (3), and a three-way assembly (4) with three interconnected ends. The main unit (1) is equipped with a pressure regulating device (5). The first end of the three-way assembly (4) is connected to the human breast, the second end is connected to the pressure regulating device (5), and the third end is connected to the container (2). The third end of the three-way assembly (4) is equipped with a switch (6). The driver (3) and the switch (6) cooperate to open and close the third end of the three-way assembly (4).

2. The breast pump with an opening and closing structure for the milk outlet end according to claim 1, characterized in that: The driver (3) is a driving component for generating a magnetic field, and the switch (6) is a magnetic field mating component. The driving component and the switch (6) which is a magnetic field mating component are used to open and close the third end of the three-way assembly (4). The driving component is a suction cup electromagnet.

3. The breast pump with an opening and closing structure for the milk outlet end according to claim 1, characterized in that: The driver (3) is a motor assembly or electromagnet with a drive shaft. The drive shaft of the driver (3) directly or indirectly cooperates with the switch (6) to open and close the third end of the three-way assembly (4). The drive shaft of the driver (3) is provided with a transmission structure that indirectly cooperates with the switch (6).

4. The breast pump with an opening and closing structure for the milk outlet end according to claim 1, characterized in that: The three-way assembly (4) includes a milk suction component (9) with a milk suction chamber (8) and a connecting sleeve (10) with a switch component (6). The connecting sleeve (10) is flexible and is fitted on the outside of the milk suction chamber (8).

5. The breast pump with an opening and closing structure for the milk outlet end according to claim 4, characterized in that: The milk inlet of the milk suction chamber (8) is used as the first end of the three-way assembly (4), the side of the milk suction chamber (8) is provided with a vent (11) used as the second end of the three-way assembly (4), the milk outlet of the milk suction chamber (8) is used as the third end of the three-way assembly (4), the connecting sleeve (10) is provided with a vent (12) corresponding to the vent (11), and the container (2) is provided with a perforation (16) communicating with the vent (12). A sealing bevel (13) is provided between the switch (6) and the milk inlet end of the milk suction chamber (8).

6. The breast pump with an opening and closing structure for the milk outlet end according to claim 1, characterized in that: The switch (6) is inclined and has a magnetic mating part (14) inside. The driver (3) is installed inside the host (1). The host (1) has an inclined mounting position (15) located close to the switch (6) and the driver (3) is installed on the inclined mounting position (15).

7. The breast pump with an opening and closing structure for the milk outlet end according to claim 1, characterized in that: The three-way assembly (4) includes a milk suction component (9) with a milk suction chamber (8). When the milk output end of the milk suction chamber (8) is closed by the driver (3) and the switch (6), the air pressure regulating device (5) operates and draws in the gas inside the milk suction chamber (8) so that the milk suction chamber (8) forms a negative pressure and realizes the milk suction action of the milk suction component (9).

8. The breast pump with an opening and closing structure for the milk outlet end according to claim 7, characterized in that: The milk suction component (9) is detachably installed on the container (2). The container (2) has a contoured mounting cavity (17) on the outside of the milk suction cavity (8). The switch component (6) has a connecting sleeve (10) sleeved on the outside of the milk suction cavity (8). The connecting sleeve (10) has a limiting block (18) on the lower outer side of the milk suction cavity (8) inside the container (2). The milk suction component (9) is installed on the container (2). The outside of the milk suction cavity (8) is installed on the inside of the contoured mounting cavity (17). The connecting sleeve (10) abuts against the inner wall of the mounting cavity (17). The lower outer side of the milk suction cavity (8) is located inside the limiting block (18).

9. The breast pump with an opening and closing structure for the milk outlet end according to claim 1, characterized in that: The container (2) is detachably installed on the host (1). The host (1) is provided with a limiting step (19), a guide mounting slope (20) and a connecting hole (21). The air pressure regulating device (5) is provided with a pipe connected to the connecting hole (21). The container (2) is provided with a connecting column (22) with a built-in perforation (16). The container (2) is provided with a positioning step (23) and a positioning slope (24). The container (2) is installed on the host (1), the positioning step (23) abuts against the limiting step (19), the connecting column (22) is inserted into the connecting hole (21), and the positioning inclined surface (24) abuts against the installation inclined surface (20); A sealing element (25) is provided between the connecting post (22) and the connecting hole (21).

10. The breast pump with an opening and closing structure for the milk outlet end according to claim 1, characterized in that: The host (1) includes a cover (26) and a housing (27), and a compartment (7) is formed between the cover (26) and the housing (27) for installing the air pressure regulating device (5) and the driver (3).

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