Wearable breast pump structure and control method

Abstract

The invention belongs to the technical field of mother and baby products, and particularly relates to a wearable breast pump structure and a control method. The wearable breast pump structure comprises a shell, an adsorption disc, a one-way valve and a host device, a cavity with an open bottom is arranged in the shell, the adsorption disc covers the opening part of the cavity, and the adsorption disc and the cavity form a milk storage cavity; the adsorption disc is provided with a channel extending into the cavity, and a through hole is formed in one side of the channel. The through hole is provided with a one-way valve which unidirectionally seals the through hole; the main machine device comprises a control system and an air suction pump, the air suction pump is communicated with the milk storage cavity, negative pressure is formed in the milk storage cavity, and the control system is used for controlling starting and stopping of the air suction pump. The suction disc covers and is attached to the breast, the control system starts the air suction pump, the air suction pump exhausts air in the milk storage cavity to form negative pressure, the one-way valve opens the through hole, the channel is communicated with the milk storage cavity, and the negative pressure acts on the breast; the air suction pump continuously increases the negative pressure value in the milk storage cavity until the air pressure detection mechanism detects that the milk storage cavity reaches the target air pressure value set by the control system.

Description

Technical Field

[0001] The present invention belongs to the technical field of maternal and infant products, and in particular relates to a wearable breast pump structure and a control method. Background Art

[0002] A breast pump is a tool used to express breast milk accumulated in the mammary glands. It is generally used when the baby is unable to suckle directly, or when the mother is separated from the baby but still wishes to breastfeed. Breast pumps usually use an electric or manual vacuum system to directly or indirectly apply negative pressure to a breast shield or milk storage container that fits the breast, allowing the milk to be sucked into the milk storage container or other storage space for storage.

[0003] For example, Chinese patent publication number CN222286056U discloses a fully enclosed breast pump, including a collection component, a liquid barrier drive component and a negative pressure component. The collection component includes a breast shield and a milk storage container. The breast shield is used to fit the breast, and the milk storage container is used to collect milk. The breast shield is connected to the milk storage container; the liquid barrier drive component is integrally formed with the collection component and is sealed to the collection component; the negative pressure component is pneumatically, mechanically or electrically connected to the collection component, and negative pressure is applied to the collection component through the liquid barrier drive component. The liquid barrier drive component separates the breast pump into two parts separated by gas and liquid. When the user uses it, the part of the collecting component is attached to the breast, and the negative pressure component indirectly applies negative pressure to the collecting component through the liquid barrier driving component, so that the milk can be sucked out of the user's breast and then flow into the collecting component for temporary storage. The liquid barrier driving component is integrally formed with the collecting component and sealed, which can separate the breast pump into two parts with gas and liquid separation. One part is used for milk circulation, and the other part is used to communicate with the air path of the negative pressure component to form negative pressure. The provision of the liquid barrier driving component can prevent the milk from being sucked into the air path of the negative pressure component, thereby preventing the milk from being contaminated or causing the negative pressure component to short-circuit and fail.

[0004] The technical solution disclosed in the above patent document is to use a vacuum pump to drive the diaphragm to deform, so that negative pressure is formed in the enclosed space formed by the silicone flange and the breast, thereby achieving the purpose of milk suction. When the diaphragm is reset, the enclosed space is depressurized, and this continuous cycle is carried out to achieve continuous milk suction. In order to continuously suck milk, the negative pressure pump needs to work continuously. The negative pressure pump will have certain noise and vibration when working, and the diaphragm will also generate continuous noise when reciprocating. Therefore, when the negative pressure pump is working continuously, it will cause discomfort to the user. In addition, since the diaphragm needs to be constantly deformed and reset when working, the airflow formed when the diaphragm is reset will react on the breast, and milk will splash onto the breast, further causing discomfort to the user. Summary of the Invention

[0005] The purpose of the present invention is to provide a wearable breast pump structure and control method, both of which aim to solve the problem that during the operation of the prior art breast pump, the negative pressure pump needs to work continuously, and the noise and vibration caused by continuous operation may cause discomfort to the user.

[0006] To achieve the above-mentioned objectives, an embodiment of the present invention provides a wearable breast pump structure, comprising a shell, a suction plate, a one-way valve, and a host device; a cavity with an open bottom is provided in the shell, the suction plate covers the mouth of the cavity, and forms a milk storage chamber with the cavity; the suction plate is provided with a channel extending into the cavity, and a through hole is provided on one side of the channel; the through hole is provided with the one-way valve, and the one-way valve one-way seals the through hole; the host device includes a control system and an air pump, the air pump is connected to the milk storage chamber and is used to expel air in the milk storage chamber, thereby forming a negative pressure in the milk storage chamber and causing the one-way valve to open the through hole; the control system is used to control the start and stop of the air pump.

[0007] Furthermore, the host device further includes a main housing, which is disposed on one side of the shell, and the air suction pump is disposed in the main housing.

[0008] Furthermore, a mounting position is provided on one side of the shell, and the mounting position includes a bottom wall, and the main shell can be detachably installed on the mounting position; the bottom wall is provided with a first interface, and the first interface is connected to the cavity; a second interface is provided on one side of the main shell, and the second interface is docked with the first interface, and the suction pump is connected to the second interface.

[0009] Furthermore, the first interface includes a protrusion provided on the bottom wall, the protrusion having a connecting end extending toward the outer edge of the bottom wall, an air passage provided in the protrusion, one end of the air passage communicating with the cavity, and the other end passing through the connecting end;

[0010] The main housing is provided with a space-avoiding groove, and the space-avoiding groove is used to avoid the protrusion; the second interface is arranged in the space-avoiding groove.

[0011] Furthermore, an anti-overflow structure is provided on the inner side of the bottom wall, and the anti-overflow structure includes a baffle plate arranged around the mouth of the air duct, and both ends of the baffle plate extend toward the outer edge of the shell and form a flow channel with the outer edge side plate of the shell; the baffle plate is fitted with the inner side of the adsorption plate to form a buffer cavity; the mouth of the air duct also has an extension tube extending into the buffer cavity.

[0012] Furthermore, a side wall of the installation position is also provided with a discharge port, the discharge port is communicated with the cavity, and the discharge port is detachably connected to a sealing member.

[0013] Furthermore, a connecting rib is provided in the through hole, and the connecting rib is provided with a connecting position; a sealing ring is also extended from the mouth of the through hole into the milk storage chamber; the one-way valve includes a connecting head and an elastic diaphragm; the connecting head is connected to the connecting position, and the elastic diaphragm fits the mouth of the sealing ring.

[0014] Furthermore, the elastic diaphragm includes a deformation portion, a sealing portion and an anti-backflow portion; the deformation portion extends radially outward along the outer side of the connector, and the deformation portion is concave toward the through hole; the sealing portion is arranged on the outer ring of the deformation portion and is supported on the end face of the sealing retaining ring; the anti-backflow portion is arranged on the outer ring of the sealing portion, and the anti-backflow portion extends obliquely toward an end of the sealing retaining ring closer to the channel.

[0015] Furthermore, the wall thickness of the deformation portion gradually decreases toward the direction in which the outer ring extends; and the wall thickness of the backflow prevention portion gradually increases toward the direction in which the outer ring extends.

[0016] Furthermore, the adsorption plate includes a silicone shell, a support flange and a support tube; the silicone shell is a trumpet-shaped structure, including a trumpet mouth, and the support tube is arranged at the small end of the trumpet mouth and extends into the shell; the channel is arranged in the support tube, and the through hole is arranged on one side of the support tube; the outer edge of the silicone shell is provided with a reverse extending mounting ring; a receiving groove is provided in the mounting ring, and the receiving groove extends toward the trumpet mouth; the support flange is arranged in the receiving groove.

[0017] Furthermore, the host device further includes an air pressure detection mechanism, which is communicated with the milk storage chamber and is used to detect the negative pressure value of the milk storage chamber.

[0018] Furthermore, the host device further includes a pressure relief valve, which is communicated with the milk storage chamber and is used to eliminate the negative pressure in the milk storage chamber.

[0019] Furthermore, the host device also includes an air pressure detection mechanism, a pressure relief valve and a four-way joint arranged in the main housing, and the four-way joint includes a first joint, a second joint, a third joint and a fourth joint; the first joint is connected to the milk storage chamber, the second joint is connected to the suction pump, the third joint is connected to the air pressure detection mechanism, and the fourth joint is connected to the pressure relief valve.

[0020] The above one or more technical solutions in the wearable breast pump structure provided by the embodiment of the present invention have at least the following technical effects:

[0021] During use, this wearable breast pump covers the user's breast with a suction plate. The control system activates the suction pump, which expel air from the milk storage chamber, creating negative pressure. The one-way valve opens a through hole, connecting the channel to the milk storage chamber. The negative pressure acts on the breast, allowing the milk to be extracted. The extracted milk then enters the milk storage chamber through the through hole. During extraction, the suction pump continuously increases the negative pressure in the milk storage chamber. Once a certain negative pressure is reached, the pump stops. Because the negative pressure in the milk storage chamber is released slowly, the negative pressure remains on the breast for a long time, allowing the extracted milk to fill the negative pressure until the suction pump is activated again, either at a low or zero negative pressure. Therefore, this wearable breast pump eliminates the need for continuous vacuuming of the milk storage chamber, preventing discomfort caused by prolonged operation of the suction pump. Furthermore, the milk enters the milk storage chamber directly, eliminating the risk of milk backflow or splashing during pressure relief. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of the wearable breast pump provided by an embodiment of the present invention.

[0024] Figure 2 This is a structural diagram of the bottom side of the wearable breast pump provided by an embodiment of the present invention.

[0025] Figure 3 A cross-sectional view of the wearable breast pump structure provided by an embodiment of the present invention.

[0026] Figure 4 This is a structural diagram of a wearable breast pump structure provided by an embodiment of the present invention, with the main unit removed.

[0027] Figure 5 This is a cross-sectional view of the wearable breast pump structure provided by an embodiment of the present invention, with the main unit removed.

[0028] Figure 6 This is a structural diagram of the shell of a wearable breast pump structure provided by an embodiment of the present invention.

[0029] Figure 7 A structural diagram of the suction plate of a wearable breast pump structure provided by an embodiment of the present invention.

[0030] Figure 8 A cross-sectional view of the suction plate of a wearable breast pump structure provided by an embodiment of the present invention.

[0031] Figure 9 This is a structural diagram of the host device of the wearable breast pump structure provided by an embodiment of the present invention.

[0032] Figure 10 This is a diagram of the internal structure of the main shell of the wearable breast pump structure provided by an embodiment of the present invention.

[0033] Figure 11 for Figure 8 A partial enlarged view of . DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "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 embodiments of 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 present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0037] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0038] In one embodiment of the wearable breast pump of the present invention, please refer to Figure 1 and Figure 2, wearable breast pump, can be worn with you and used anytime and anywhere, which is convenient for users to use.

[0039] For the wearable breast pump of this embodiment, please refer to Figure 3 and Figure 5 , specifically comprising a housing 100, a suction disc 200, a one-way valve 300, and a host device 400. The housing 100 defines an open-bottomed cavity. The suction disc 200 covers the cavity's opening and, together with the cavity, forms a milk storage chamber 101. Preferably, the suction disc 200 includes a silicone shell 210; the silicone shell 210 is a trumpet-shaped structure with a bell mouth 211. The small end of the silicone shell 210 extends into the cavity, forming a channel 212. The outer edge of the silicone shell 210 is provided with a mounting ring 213 extending in the opposite direction, which seals the outer ring of the housing 100. A through hole 214 is provided on one side of the channel 212; a one-way valve 300 is provided in the through hole 214, which seals the through hole 214 in one direction. The one-way valve 300 is in a normally closed state. When negative pressure is formed in the milk storage chamber 101 and reaches a certain negative pressure value, the one-way valve 300 is opened, so that the channel 212 is connected to the milk storage chamber 101.

[0040] The main device 400 includes a control system (not shown) and an air pump 410. The air pump 410 is connected to the milk storage chamber 101. When the air pump 410 is in operation, it can expel air from the milk storage chamber 101, creating a negative pressure in the milk storage chamber 101. Under the action of the negative pressure, the one-way valve 300 opens the through hole. The control system is used to control the start and stop of the air pump 410. In this embodiment, the control system includes a battery and a control circuit. The structure of the battery and control circuit is related to the existing technology in the field and will not be described in detail in this embodiment.

[0041] When the wearable breast pump of this embodiment is in use, the suction plate 200 covers the user's breast. The user operates or sets a control system to activate the suction pump 410. The suction pump 410 expel air from the milk storage chamber 101, creating a negative pressure. The one-way valve 300 opens the through hole, connecting the channel 212 with the milk storage chamber 101. The negative pressure acts on the breast, and the milk is sucked out. The sucked milk enters the milk storage chamber 101 through the through hole 214. During milk extraction, the suction pump 410 continuously increases the negative pressure in the milk storage chamber 101. Once a certain negative pressure is reached, the suction pump 410 maintains the negative pressure in the milk storage chamber 101. The suction pump 410 then stops, and the negative pressure in the milk storage chamber 101 continues to act on the breast. The sucked milk fills the volume of the milk storage chamber 101 until the negative pressure in the milk storage chamber 101 is eliminated or slightly negative, at which point the suction pump 410 is activated again. Therefore, the wearable breast pump does not need to continuously vacuum the milk storage chamber 101, avoiding discomfort to the user caused by the long-term operation of the suction pump 410. In addition, the milk directly enters the milk storage chamber 101, and there is no problem of milk backflow or splashing during the pressure relief process.

[0042] Further, refer to Figure 2 , Figure 9 and Figure 10 The host device 400 further includes a main housing 420 , which is disposed on one side of the housing 100 , and the suction pump 410 and the control system are disposed in the main housing 420 .

[0043] For further information, please refer to Figure 4 , Figure 5 , Figure 9 and Figure 10 A mounting position 102 is provided on one side of the housing 100. Mounting position 102 includes a bottom wall 103. The main housing 420 is removably mounted on mounting position 102. The bottom wall 103 is provided with a first interface 104, which communicates with the milk storage chamber. A second interface 421 is provided on one side of the main housing 420. The second interface 421 interfaces with the first interface 104, and the air pump 410 is connected to the second interface 421. In this embodiment, the main unit 400 is detachable from the housing 100, allowing the housing 100 and suction plate 200 to be cleaned separately after the main unit 400 is removed. When the main unit 400 and the housing 100 are assembled, the main housing 420 is installed in mounting position 102, and the second interface 421 is connected to the first interface 104, thereby connecting the air pump 410 to the milk storage chamber 101. Furthermore, a slot is provided in the mounting position 102, and an elastic latch is provided in the main housing 420. When the two are assembled, the elastic latch engages in the slot.

[0044] Preferably, please refer to Figure 4 and Figure 5 The first interface 104 includes a raised portion 1040 provided on the bottom wall 103. The raised portion 1040 has a connecting end 1041 extending toward the outer edge of the bottom wall 103. An air passage 1042 is defined within the raised portion 1040. One end of the air passage 1042 communicates with the cavity, and the other end passes through the connecting end 1041. In this embodiment, the first interface 104 is provided on the bottom wall 103 and extends toward the outer edge, thereby keeping the first interface 104 away from the milk storage cavity 101. This prevents milk in the milk storage cavity 101 from entering the air passage 1042 when the suction pump 410 is pumping air.

[0045] Reference Figure 9 The main housing 420 is provided with a clearance groove 422 for avoiding the protrusion 1040; and the second interface 421 is provided in the clearance groove 422. Specifically, when the main housing 420 is installed in the installation position 102, the protrusion 1040 is inserted into the clearance groove 422, and the connection end 1041 is inserted into the second interface 421.

[0046] To further prevent milk from being discharged from the airway 1042, in this embodiment, an anti-overflow structure 110 is further provided on the inner side of the bottom wall 103. Figure 5 and Figure 6 The overflow prevention structure 110 includes a baffle 111 disposed around the opening of the air passage 1042. Both ends of the baffle 111 extend toward the outer edge of the housing 100 and, together with the outer side panels of the housing 100, form a flow passage 112. The baffle 111 mates with the inner side of the suction plate 200 to form a buffer chamber 113. An extension tube 1043 extends from the opening of the air passage 1042 into the buffer chamber 113. In this embodiment, when the suction pump 410 expels air from the milk storage chamber 101, the air enters the buffer chamber 101 through the flow passage 112 and is then discharged through the extension tube 1043. During this venting process, even if milk enters the buffer chamber 113 along with the airflow, it will accumulate there. Furthermore, the extension tube 1043, which extends into the buffer chamber 113, is suspended in the air, effectively preventing milk from entering the extension tube 1043 and being discharged by the suction pump 410.

[0047] Further, refer to Figure 3 and Figure 5 The sidewall of mounting position 102 is also provided with a discharge port 120, which communicates with the cavity and is provided with a seal 423. Separating seal 423 from discharge port 120 allows the milk in milk storage cavity 101 to be poured out. Specifically, seal 423 is provided on side 3 of main housing 420. Specifically, seal 423 may be a silicone plug. In this embodiment, when main unit 400 is mounted in position 102, second interface 421 is connected to first interface 104, and seal 423 seals discharge port 104, preventing pressure release at discharge port 104.

[0048] This embodiment provides an embodiment of a one-way valve 300 for sealing the through hole 214. Figure 3 , Figure 5 Figure 7 and Figure 8Specifically, a connecting rib 215 is provided within the through hole 214. The connecting rib 215 is cross-shaped and has a connecting position 216. A sealing ring 217 extends from the mouth of the through hole 214 into the milk storage chamber 101. The sealing ring 217 seals the one-way valve 300, thereby sealing the through hole 214. Specifically, the one-way valve 300 includes a connector 310 and an elastic diaphragm 320. The connector 310 is connected to the connecting position 216. In this embodiment, the connector 310 and the connecting position 216 are removable. Specifically, the connecting position 216 is provided with a connecting hole. The connector 310 is mushroom-shaped, and the head of the connector 310 passes through the connecting hole and is retained on the other side of the connecting position 216. To facilitate assembly of the one-way valve 300 and the connecting rib 215, a handle 330 is provided on one side of the elastic diaphragm 320. The handle 330 facilitates assembly and disassembly of the connector 310. The elastic diaphragm 320 fits over the opening of the sealing ring 217; specifically, it extends outward along the outer edge of the connector 310. When the air in the milk storage chamber 101 is expelled by the suction pump 410, the air pressure in the chamber 101 becomes lower than that in the channel 212. The air pressure in the channel 212 pushes the elastic diaphragm 320 open, forming a connection between the channel 212 and the milk storage chamber 101. Under sustained negative pressure in the milk storage chamber 101, the elastic diaphragm 320 remains open. When the milk volume in the milk storage chamber 101 reaches the level of the elastic diaphragm 320, the milk pressure acts on the elastic diaphragm 320, sealing the sealing ring 217 and preventing milk backflow.

[0049] To further facilitate the opening and sealing of the through hole 214, the elastic diaphragm 320 of this embodiment includes a deformation portion 321, a sealing portion 322 and a backflow prevention portion 323. Figure 7 and Figure 8The deforming portion 321 extends radially outward along the outer side of the connector 310 and is concave inwardly toward the through-hole 214, giving the deforming portion 321 a spherical structure. Therefore, when the elastic diaphragm 320 opens, it deforms along the inner spherical surface of the deforming portion 321, making it easier to elastically deform and open the through-hole 214. The sealing portion 322 is disposed on the outer ring of the deforming portion 321 and supported on the end surface of the sealing retaining ring 217. The backflow prevention portion 323 is disposed on the outer ring of the sealing portion 322 and extends obliquely toward the end of the sealing retaining ring 217 that is closer to the channel 212. In this embodiment, when the milk volume in the milk storage chamber 101 reaches the position of the one-way valve 300, the milk level will act on the bottom side of the elastic diaphragm 320, causing the elastic diaphragm 320 to close the through-hole. Furthermore, when the milk level acts on the bottom side of the backflow prevention portion 323, the backflow prevention portion 323 will bend and deform toward the outside of the sealing retainer 217 and wrap around the sealing retainer 217, preventing milk from entering the space formed by the backflow prevention portion 323 and the outer ring of the sealing retainer 217, causing the elastic diaphragm 320 to deform downward and open the through-hole. This enhances the one-way sealing effect of the one-way valve 300 and prevents backflow of milk in the milk storage chamber 101.

[0050] Further, refer to Figure 11 The wall thickness of the deformable portion 321 gradually decreases toward the outer ring. Therefore, the deformable portion 321 is more susceptible to deformation near the outer ring and less susceptible to deformation near the inner ring, thus preventing stress and cracking at the base of the deformable portion 321 where it connects to the connector 310. The wall thickness of the backflow prevention portion 321 gradually increases toward the outer ring. Specifically, the cross-section of the backflow prevention portion 321 is teardrop-shaped. Therefore, when the backflow prevention portion 321 is subjected to the force of the liquid surface, it is more likely to deform along the sealing portion 322, thereby better fitting the sealing portion 322 to the sealing retaining ring 217.

[0051] Further, refer to Figure 5 and Figure 8 The suction plate 200 also includes a support flange 220 and a support tube 230. A receiving groove is provided within the mounting ring 213 of the silicone shell 210, extending toward the bell mouth. The support flange 220 is positioned within the receiving groove. A retaining groove is also provided at the small end of the bell mouth, into which the open end of the support tube 230 engages. A channel 212 is provided within the support tube 230, and a through hole 214 is provided on the bottom side of the support tube 230.

[0052] Specifically, the support flange 220 and support tube 230 are both rigid plastic components that can be integrally connected to the silicone shell 210 through a rubber encapsulation process. The provision of the support flange 220 and support tube 230 increases the strength and support effectiveness of the silicone shell 210, effectively preventing deformation of the silicone shell 210 during air expulsion from the milk storage chamber 101, which could cause the one-way valve 300 to close when the silicone shell 210 elastically resets. Furthermore, the provision of the support flange 220 facilitates assembly of the silicone shell 210 with the housing 100.

[0053] Further, refer to Figure 10 The main unit 400 also includes an air pressure detection mechanism 430, which is in communication with the milk storage chamber 101 and is used to detect the negative pressure in the milk storage chamber 101. Specifically, the air pressure detection mechanism 430 is an air pressure sensor disposed within the main housing 420. The air pressure sensor detects the air pressure in the milk storage chamber 101 and feeds it back to the control system, which activates and deactivates the suction pump 410 based on the air pressure.

[0054] Furthermore, the host device 400 further includes a pressure relief valve 440, which is connected to the milk storage chamber 101 and is used to eliminate the negative pressure in the milk storage chamber 101. When the aspirator is not in use, the negative pressure in the milk storage chamber 101 can be released through the pressure relief valve 440.

[0055] Furthermore, the host device 400 further includes a four-way connector 450, which includes a first connector 451, a second connector 452, a third connector 453, and a fourth connector 454. The first connector 451 is connected to the milk storage chamber 101, the second connector 452 is connected to the suction pump 410, the third connector 453 is connected to the air pressure detection mechanism 430, and the fourth connector 454 is connected to the pressure relief valve 440.

[0056] In the control method of the breast pump described above, specifically, the silicone shell 210 of the suction plate 200 covers and adheres to the breast. The control system activates the suction pump 410, which draws air from the milk storage chamber 101, creating a negative pressure therein. Under the action of this negative pressure, the one-way valve 300 opens the through-hole 213, connecting the channel 212 with the milk storage chamber 101. This negative pressure directly acts on the breast, allowing milk to be extracted. During this process, the suction pump 410 continuously increases the negative pressure within the milk storage chamber 101 until the air pressure detection mechanism 430 detects that the milk storage chamber 101 has reached the target pressure set by the control system, at which point the suction pump 410 ceases operation. Because the air in the milk storage chamber 101 is expelled and milk cannot quickly replenish the volume within the milk storage chamber 101, the milk storage chamber 101 remains in a negative pressure state for a prolonged period, enabling continuous milk extraction without requiring the suction pump 410 to operate continuously for extended periods.

[0057] Furthermore, the control system sets a minimum negative pressure value and a maximum negative pressure value in the milk storage chamber 101; the air pressure detection mechanism 430 detects that the negative pressure value in the milk storage chamber 101 reaches the minimum negative pressure value, and the control system controls the suction pump 410 to start until the air pressure detection mechanism detects that the negative pressure value in the milk storage chamber 101 reaches the set maximum negative pressure value.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wearable breast pump structure, characterized in that: The milk drier comprises a shell, a suction plate, a one-way valve and a host device; a cavity with an open bottom is provided in the shell, the suction plate covers the mouth of the cavity and forms a milk storage cavity with the cavity; the suction plate is provided with a channel extending into the cavity, and a through hole is provided on one side of the channel; the through hole is provided with the one-way valve, and the one-way valve seals the through hole in one direction; the host device comprises a control system and an air suction pump, the air suction pump is connected to the milk storage cavity and is used to discharge air in the milk storage cavity, so that negative pressure is formed in the milk storage cavity, causing the one-way valve to open the through hole, and the control system is used to control the start and stop of the air suction pump.

2. The wearable breast pump structure according to claim 1, characterized in that: The host device further includes a main housing, which is arranged on one side of the shell, and the air suction pump is arranged in the main housing.

3. The wearable breast pump structure according to claim 2, characterized in that: A mounting position is provided on one side of the shell, and the mounting position includes a bottom wall. The main shell can be detachably installed on the mounting position; the bottom wall is provided with a first interface, and the first interface is connected to the cavity; a second interface is provided on one side of the main shell, and the second interface is docked with the first interface, and the suction pump is connected to the second interface.

4. The wearable breast pump structure according to claim 3, characterized in that: The first interface includes a protrusion provided on the bottom wall, the protrusion having a connection end extending toward the outer edge of the bottom wall, an air passage provided in the protrusion, one end of the air passage communicating with the cavity, and the other end passing through the connection end; The main housing is provided with a space-avoiding groove, and the space-avoiding groove is used to avoid the protrusion; the second interface is arranged in the space-avoiding groove.

5. The wearable breast pump structure according to claim 4, characterized in that: An anti-overflow structure is also provided on the inner side of the bottom wall, and the anti-overflow structure includes a baffle plate arranged around the mouth of the air duct, and both ends of the baffle plate extend toward the outer edge of the shell and form a flow channel with the outer edge side plate of the shell; the baffle plate is fitted with the inner side of the adsorption plate to form a buffer cavity; the mouth of the air duct also has an extension tube extending into the buffer cavity.

6. The wearable breast pump structure according to claim 3, characterized in that: The side wall of the installation position is further provided with a discharge port, the discharge port is communicated with the cavity, and the discharge port is detachably connected to a sealing member.

7. The wearable breast pump structure according to claim 1, characterized in that: A connecting rib is provided in the through hole, and a connecting position is provided on the connecting rib; a sealing retaining ring is also extended from the mouth of the through hole into the milk storage chamber; the one-way valve includes a connecting head and an elastic diaphragm; the connecting head is connected to the connecting position, and the elastic diaphragm fits the mouth of the sealing retaining ring.

8. The wearable breast pump structure according to claim 7, characterized in that: The elastic diaphragm includes a deformation portion, a sealing portion and an anti-backflow portion; the deformation portion extends radially along the outer side of the connector, and the deformation portion is concave toward the through hole; the sealing portion is arranged on the outer ring of the deformation portion and is supported on the end face of the sealing retaining ring; the anti-backflow portion is arranged on the outer ring of the sealing portion, and the anti-backflow portion extends obliquely toward an end of the sealing retaining ring closer to the channel.

9. The wearable breast pump structure according to claim 8, characterized in that: The wall thickness of the deformation portion gradually decreases toward the direction in which the outer ring extends; and the wall thickness of the anti-backflow portion gradually increases toward the direction in which the outer ring extends.

10. The wearable breast pump structure according to claim 1, characterized in that: The adsorption plate includes a silicone shell, a supporting flange and a supporting tube; the silicone shell is in a trumpet-shaped structure, including a trumpet mouth, and the supporting tube is arranged at the small end of the trumpet mouth and extends into the shell; the channel is arranged in the supporting tube, and the through hole is arranged on one side of the supporting tube; the outer edge of the silicone shell is provided with a mounting ring extending in the opposite direction; a receiving groove is provided in the mounting ring, and the receiving groove extends toward the trumpet mouth; the supporting flange is arranged in the receiving groove.

11. The wearable breast pump structure according to any one of claims 1 to 10, characterized in that: The host device further includes an air pressure detection mechanism, which is communicated with the milk storage chamber and is used to detect the negative pressure value of the milk storage chamber.

12. The wearable breast pump structure according to any one of claims 1 to 10, characterized in that: The host device further includes a pressure relief valve, which is communicated with the milk storage chamber and is used to eliminate the negative pressure in the milk storage chamber.

13. The wearable breast pump structure according to any one of claims 2 to 10, characterized in that: The host device also includes an air pressure detection mechanism, a pressure relief valve and a four-way joint arranged in the host housing, and the four-way joint includes a first joint, a second joint, a third joint and a fourth joint; the first joint is connected to the milk storage chamber, the second joint is connected to the suction pump, the third joint is connected to the air pressure detection mechanism, and the fourth joint is connected to the pressure relief valve.

14. A method for controlling a breast pump, characterized in that: The wearable breast pump structure according to any one of claims 11 to 13 is provided, wherein the control method comprises: the suction plate covers and fits the breast, the control system activates the suction pump, the suction pump discharges air from the milk storage chamber to form a negative pressure, and the one-way valve opens the through hole to connect the channel with the milk storage chamber, so that the negative pressure acts on the breast; the suction pump continuously increases the negative pressure in the milk storage chamber until the air pressure detection mechanism detects that the milk storage chamber reaches the target air pressure set by the control system.

15. The breast pump control method according to claim 14, characterized in that: The control system sets a minimum negative pressure value and a maximum negative pressure value in the milk storage chamber; when the air pressure detection mechanism detects that the negative pressure value in the milk storage chamber reaches the minimum negative pressure value, the control system controls the suction pump to start until the air pressure detection mechanism detects that the negative pressure value in the milk storage chamber reaches the set maximum negative pressure value.

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