Wearable breast pump, flexible breast shield and breast pump, and breast pump flow guide assembly and breast pump

Abstract

A wearable breast pump (100), a flexible breast shield and a breast pump, and a breast pump flow guide assembly and a breast pump. The wearable breast pump (100) comprises a breast shield (110), a suction cup (120), a one-way flow guide member (130), a milk bowl (150), and a suction mechanism (160); the breast shield (110) comprises a connecting ring (111) and a fitting cup (112) which are integrally formed; the suction cup (120) is arranged at the end of the connecting ring (111) distant from the fitting cup (112) and is integrally formed with the breast shield (110); the breast shield (110), the suction cup (120), and the milk bowl (150) jointly define a breathing cavity (170); the suction mechanism (160) is in communication with the breathing cavity (170); the milk bowl (150) and the breast shield (110) jointly define a storage cavity (180); the suction cup (120) is configured to elastically deform under the suction force of the suction mechanism (160), thereby creating a negative pressure within the breast shield (110) and expressing milk; and the one-way flow guide member (130) is configured to allow the milk to flow into the storage cavity (180). Thus, it is convenient to assemble for milk expression and disassemble for cleaning, thereby improving assembly and disassembly efficiency, and improving user experience. In addition, the breast pump is compact, highly portable, has fewer components, offers high production efficiency, and requires lower costs.

Description

A wearable breast pump, a flexible breast shield and breast pump, a breast pump flow guide assembly and a breast pump.

[0001] Cross-reference to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 2024115694165, filed on November 5, 2024, entitled “A Wearable Breast Pump”.

[0003] Priority to Chinese patent application No. 2024116854301, filed with the Chinese Patent Office on November 22, 2024, entitled "A Flexible Breast Pump and Breast Conveyor";

[0004] Priority is given to Chinese Patent Application No. 2024117175505, filed on November 27, 2024, entitled “A Breast Pump Flow Guide Component and Breast Pump”, the entire contents of which are incorporated herein by reference. Technical Field

[0005] This disclosure relates to the field of breast pump technology, and more specifically, to a wearable breast pump, a flexible breast shield and breast pump, a breast pump flow guide assembly and breast pump. Background Technology

[0006] A breast pump is a tool designed to express breast milk that has accumulated in the mammary glands. It is generally suitable for situations where the baby cannot suckle directly.

[0007] However, traditional breast pumps have a complex structure, and the disassembly and assembly process between various parts is complicated, time-consuming, labor-intensive, and inefficient. They are not convenient for assembling for breast pumping or disassembling for cleaning, resulting in a poor user experience. Summary of the Invention

[0008] The embodiments of this disclosure provide a wearable breast pump, a flexible breast shield and breast pump, a breast pump guide assembly and breast pump, which can simplify the assembly and disassembly process, save time and effort, improve assembly and disassembly efficiency, facilitate assembly for breast pumping and disassembly for cleaning, and enhance user experience.

[0009] The embodiments of this disclosure are implemented using the following technical solutions:

[0010] Embodiments of this disclosure provide a wearable breast pump, including a bra, a suction bowl, a one-way flow guide, a milk bowl, and a suction mechanism. The bra includes an integrally formed connecting ring and a fitting cup. The suction bowl is disposed at the end of the connecting ring away from the fitting cup and is integrally formed with the bra. The bra, suction bowl, and milk bowl together form a breathing cavity. The suction mechanism communicates with the breathing cavity. The milk bowl and bra together form a storage cavity. The suction bowl is configured to elastically deform under the suction force of the suction mechanism to create a negative pressure inside the bra and draw out milk. The connecting ring communicates with the storage cavity through the one-way flow guide, which is configured to allow milk to flow into the storage cavity.

[0011] Optionally, the outer wall of the connecting ring is provided with a sealing boss, and the milk bowl is provided with a sealing groove. The sealing groove is annular, and the sealing boss cooperates with the sealing groove to seal the breathing cavity.

[0012] Optionally, the end of the cup furthest from the connecting ring is provided with a flange groove, which is annular, and the end of the milk bowl is provided with a mating boss that mates with the flange groove; the cup is provided with a handle, which is configured to disengage the mating boss and the flange groove.

[0013] Optionally, the cup has a first milk outlet groove, and the milk bowl has a second milk outlet groove. The first and second milk outlet grooves together form a milk outlet, which is connected to the storage cavity.

[0014] Optionally, the suction mechanism includes a housing and a circuit board, a solenoid valve, an air pump, and an air tube installed inside the housing. The circuit board is connected to the air pump via the solenoid valve, and one end of the air tube is connected to the air pump, while the other end is connected to the breathing cavity.

[0015] Optionally, the milk bowl has a notch, and the suction mechanism is installed in the milk bowl and located within the notch.

[0016] Optionally, the milk bowl includes a bowl body and a back cover, the bowl body and the back cover being detachably and sealed together, and the suction mechanism being connected to the back cover.

[0017] Optionally, the wearable breast pump also includes a liner that fits into a bra, the liner being installed within a connecting ring; the liner includes a liner frame and a liner body, the liner body being fitted over the liner frame.

[0018] Optionally, the unidirectional flow guide is installed on the connecting ring, and the inner lining has a relief groove that communicates with the unidirectional flow guide; or, the unidirectional flow guide is installed on the inner lining, and the bra has a relief groove that communicates with the unidirectional flow guide; or, the unidirectional flow guide, the suction cup, and the bra are integrally formed.

[0019] Optionally, the inner wall of the connecting ring is provided with a guide groove, which extends along the axial direction of the connecting ring, and a slide is provided in the inner lining, which slides in cooperation with the guide groove; and / or, the inner wall of the connecting ring is provided with a retaining groove, which is annular, and a retaining platform is provided in the inner lining, which engages with the retaining groove.

[0020] The embodiments of this disclosure provide a flexible breast shield, including a breast shield and a breast suction channel integrally connected to the breast shield. The breast suction channel includes a negative pressure tube connected to the breast shield and configured to allow milk to flow out and generate negative pressure. The negative pressure tube has an integrally formed deformable part, which is disposed along the opening of the breast shield toward the end of the negative pressure tube. The deformable part deforms under the action of a negative pressure source to create negative pressure inside the negative pressure tube. The breast shield and the negative pressure tube are made of elastic material.

[0021] Optionally, the deformable portion is arranged around the negative pressure pipe axially or circumferentially, or distributed on the left and right sides of the negative pressure pipe.

[0022] Optionally, the negative pressure tube gradually narrows from the breast bra toward the end of the negative pressure tube, and the cross-sectional diameter of the deformed part decreases as the negative pressure tube gradually narrows.

[0023] Optionally, there are multiple deformable parts, and the multiple deformable parts are arranged at intervals, and the cross-section of the deformable parts is wavy or sawtooth-shaped.

[0024] Optionally, the breast pumping channel further includes a one-way valve connected to the negative pressure tube, wherein the one-way valve is integrally formed with the negative pressure tube or is detachably connected.

[0025] Optionally, the deformable portion includes a plurality of protrusions, with a smooth transition between each of the protrusions.

[0026] The embodiments of this disclosure provide a breast pump, including the aforementioned flexible breast shield, a housing connected to the flexible breast shield, an electric pump, and a power source electrically connected to the electric pump. The housing is provided with a negative pressure cover connected to the negative pressure tube.

[0027] Optionally, the negative pressure cover is integrally formed and connected to the outer shell. The negative pressure tube has a first connecting part that connects to the breast cover and a milk outlet that communicates with the inner cavity of the negative pressure tube on one side. The first connecting part is connected to the negative pressure cover so that a negative pressure cavity is formed between the negative pressure tube and the negative pressure cover.

[0028] Optionally, the first connecting part is provided with a first connecting groove that cooperates with the negative pressure cover. The cross-sectional shape of the first connecting part is L-shaped. The negative pressure cover is engaged in the first connecting groove to form the negative pressure cavity. The first connecting part is provided with a first connecting port that communicates with the milk outlet. The first connecting groove is annularly surrounding the outside of the negative pressure tube. The hardness of the negative pressure cover is greater than the hardness of the negative pressure tube and the hardness of the breast bra.

[0029] Optionally, the negative pressure tube abuts against the inner wall of the negative pressure cover, the negative pressure cover is provided with a second connection port that mates with the first connection part, the first connection part is provided with a second connection groove that mates with the second connection port, the second connection groove is horizontally arranged along the extension direction of the negative pressure tube, the first connection part is provided with a first extension that mates with the breast pumping channel, one side of the negative pressure cover is provided with a second connection part that mates with an external electric pump, and a third connection hole that communicates with the negative pressure chamber, the third connection hole being provided on the second connection part.

[0030] The embodiments of this disclosure provide a breast pump flow guiding assembly, including a breast shield and a flow guiding valve plate. The breast shield is provided with a flow guiding seat, and the flow guiding seat is provided with a milk outlet configured to dissipate milk. The upper end of the flow guiding valve plate is connected to the flow guiding seat, and the flow guiding valve plate is configured to open and close the milk outlet. The flow guiding valve plate is elastic and can be bent to fit against the lower part of the milk outlet. The flow guiding seat is provided with a connecting structure that can keep the flow guiding valve plate in a bent state. The flow guiding seat and the flow guiding valve plate are integrally formed.

[0031] Optionally, the connection structure includes a limiting plate disposed on the flow guide seat, and the limiting plate is provided with a limiting hole, through which the free end of the flow guide valve plate passes.

[0032] Optionally, the flow guide valve plate has a hollow hole in the middle, and a valve plate that can close the milk outlet after the flow guide valve plate is bent is provided in the hollow hole. One side of the valve plate is connected to the flow guide valve plate.

[0033] Optionally, the connection structure includes a limiting post disposed on the flow guide seat, and the flow guide valve plate is provided with a through hole that can engage with the limiting post.

[0034] Optionally, the connection structure includes a retaining plate disposed on the flow guide seat, the lower end of the retaining plate having two opposing elastic buckles, and the flow guide valve plate being able to be engaged between the two elastic buckles after being bent.

[0035] Optionally, the connection structure includes a first hook provided on the flow guide seat, and the flow guide valve plate is provided with a second hook that can engage with the first hook.

[0036] Optionally, the connection structure includes a retaining hole on the flow guide seat, and the flow guide valve plate is provided with a retaining post that can be inserted into the retaining hole and press against it.

[0037] Optionally, the flow guide valve plate is provided with a bendable section near its upper end, and the bendable section is provided with a notch or bend.

[0038] Optionally, the lower end face of the milk outlet is an inclined surface, and it gradually slopes downward from the side near the flow guide valve plate to the side away from the flow guide valve plate.

[0039] The embodiments of this disclosure provide a breast pump, including the breast pump guide assembly described above, and a housing. The breast shield is provided with an elastic deformation portion, and the housing covers the elastic deformation portion, forming a negative pressure cavity between them. The housing is provided with a negative pressure port communicating with the negative pressure cavity.

[0040] The beneficial effects of the wearable breast pump, flexible breast shield and breast pump, breast pump guide assembly and breast pump provided by the embodiments of this disclosure include:

[0041] The wearable breast pump provided by the embodiments of this disclosure simplifies the assembly and disassembly process, saves time and effort, improves assembly and disassembly efficiency, facilitates breast pumping and disassembly for cleaning, and enhances the user experience.

[0042] The flexible breast shield provided in the embodiments of this disclosure is formed by integrally molding the breast shield with the negative pressure tube and setting a deformation part in the negative pressure tube, thereby reducing the volume of the breast pump, effectively improving the portability of the breast pump, and reducing the number of parts of the breast pump, thereby effectively improving production efficiency and reducing production costs.

[0043] The breast pump flow guide assembly provided in the embodiments of this disclosure locks the bent state of the breast pump flow guide valve plate through a connection structure, rather than by having the bottle neck press against the valve plate, thus resulting in better sealing performance and a longer lifespan. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 is a schematic diagram of the structure of a wearable breast pump provided in an embodiment of this disclosure;

[0046] Figure 2 is an exploded view of a wearable breast pump provided in an embodiment of this disclosure;

[0047] Figure 3 is a cross-sectional view of a wearable breast pump provided in an embodiment of this disclosure;

[0048] Figure 4 is a cross-sectional view of the bra in a wearable breast pump provided in an embodiment of this disclosure;

[0049] Figure 5 is a cross-sectional view of the liner in a wearable breast pump provided in an embodiment of this disclosure;

[0050] Figure 6 is a schematic diagram of the suction mechanism in a wearable breast pump provided in an embodiment of this disclosure;

[0051] Figure 7 is a cross-sectional view of a wearable breast pump provided in an embodiment of this disclosure;

[0052] Figure 8 is a schematic diagram of the structure of the flexible breast shield provided in the embodiments of this disclosure;

[0053] Figure 9 is a schematic diagram of the structure of the flexible breast shield provided in the embodiments of this disclosure;

[0054] Figure 10 is a cross-sectional view of a flexible breast shield provided in an embodiment of this disclosure;

[0055] Figure 11 is a schematic diagram of the structure of the flexible breast shield provided in the embodiments of this disclosure;

[0056] Figure 12 is a schematic diagram of the structure of the flexible breast shield provided in the embodiments of this disclosure;

[0057] Figure 13 is a cross-sectional view of a flexible breast shield provided in an embodiment of this disclosure;

[0058] Figure 14 is a schematic diagram of the structure of the flexible breast shield provided in the embodiments of this disclosure;

[0059] Figure 15 is a schematic diagram of the structure of the flexible breast shield provided in the embodiments of this disclosure;

[0060] Figure 16 is a schematic diagram of the structure of the flexible breast shield provided in the embodiments of this disclosure;

[0061] Figure 17 is a schematic diagram of the structure of the flexible breast shield provided in the embodiments of this disclosure;

[0062] Figure 18 is a schematic diagram of the structure of the flexible breast shield provided in the embodiments of this disclosure;

[0063] Figure 19 is a schematic diagram of the connection between the outer shell and the negative pressure cover of the breast pump provided in an embodiment of this disclosure;

[0064] Figure 20 is a schematic diagram of the structure of a breast pump provided in an embodiment of this disclosure;

[0065] Figure 21 is a cross-sectional view of a breast pump provided in an embodiment of this disclosure;

[0066] Figure 22 is a partial cross-sectional view of the connection of a breast pump provided in an embodiment of this disclosure;

[0067] Figure 23 is a three-dimensional structural diagram of the breast pump provided in an embodiment of this disclosure;

[0068] Figure 24 is a cross-sectional schematic diagram of a breast pump provided in an embodiment of this disclosure;

[0069] Figure 25 is a cross-sectional view of the flow guide valve plate after bending according to an embodiment of the present disclosure;

[0070] Figure 26 is a cross-sectional schematic diagram of a breast pump flow guide assembly provided in an embodiment of the present disclosure;

[0071] Figure 27 is a cross-sectional schematic diagram of a breast pump guide assembly provided in an embodiment of the present disclosure;

[0072] Figure 28 is a three-dimensional structural schematic diagram of the breast pump guide assembly provided in an embodiment of this disclosure;

[0073] Figure 29 is a cross-sectional schematic diagram of a breast pump flow guide assembly provided in an embodiment of the present disclosure;

[0074] Figure 30 is a three-dimensional structural schematic diagram of the breast pump guide assembly provided in an embodiment of this disclosure;

[0075] Figure 31 is a cross-sectional schematic diagram of a breast pump guide assembly provided in an embodiment of this disclosure;

[0076] Figure 32 is a cross-sectional schematic diagram of the breast pump guide assembly provided in an embodiment of the present disclosure.

[0077] Icons: 100-Wearable breast pump; 110-Nipple bra; 111-Connecting ring; 112-Fit cup; 113-Guide groove; 114-Slot; 115-Stepped surface; 116-Sealing boss; 117-Flanged groove; 118-Handle; 119-First milk outlet; 120-Suction bowl; 130-One-way flow guide; 140-Inner liner; 141-Anti-back buckle; 142-Relieving groove; 143-Slide; 144-Slot; 145-Inner liner frame; 146- Inner liner body; 147-Milk separator membrane; 148-Front cavity; 149-Ventilation hole; 150-Milk bowl; 151-Sealing groove; 152-Matching boss; 153-Second milk outlet; 154-Notch; 155-Bowl body; 156-Back cover; 160-Suction mechanism; 161-Outer shell; 162-Circuit board; 163-Solenoid valve; 164-Air pump; 165-Air tube; 166-Battery; 170-Breathing cavity; 180-Storage cavity; 190-Milk outlet. Detailed Implementation

[0078] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this disclosure, but not all embodiments.

[0079] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0080] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0081] In the description of this disclosure, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. In addition, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0082] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0083] The following detailed description of some embodiments of this disclosure is provided in conjunction with the accompanying drawings. Unless otherwise specified, features in the following embodiments can be combined with each other.

[0084] Referring to Figures 1 to 6, embodiments of this disclosure provide a wearable breast pump 100 configured to express breast milk. It simplifies the assembly and disassembly process, saves time and effort, improves assembly and disassembly efficiency, facilitates breast pumping, and enhances the user experience.

[0085] The wearable breast pump 100 includes a bra 110, a suction bowl 120, a one-way airflow guide 130, a milk bowl 150, and a suction mechanism 160. The suction bowl 120 and the bra 110 are integrally formed, and the bra 110 cooperates with the milk bowl 150. The bra 110, the suction bowl 120, and the milk bowl 150 together form a breathing cavity 170. The suction mechanism 160 is connected to the breathing cavity 170 and is configured to extract air from the breathing cavity 170 to create a negative pressure in the breathing cavity 170, thereby causing the suction bowl 120 to elastically deform. When the suction mechanism 160 stops working, the suction bowl 120 will spring back to its original position under its own elastic force and draw outside air into the breathing cavity 170. The milk bowl 150 and the breast shield 110 together form a storage cavity 180. The suction bowl 120 is configured to elastically deform under the suction force of the suction mechanism 160, creating a negative pressure inside the breast shield 110 and drawing out milk. The breast shield 110 is connected to the storage cavity 180 via a one-way flow guide 130, which is configured to allow milk to flow into the storage cavity 180 and also to prevent milk from flowing back into the storage cavity 180. Because the suction bowl 120 and the breast shield 110 are integrally molded, the number of parts is reduced, effectively simplifying the assembly and disassembly process of the wearable breast pump 100, improving assembly and disassembly efficiency, and facilitating assembly for milk expression and disassembly for cleaning.

[0086] The bra 110 includes an integrally formed connecting ring 111 and a fitting cup 112. A suction bowl 120 is disposed at the end of the connecting ring 111 away from the fitting cup 112 and is integrally formed with the connecting ring 111. The bra 110 and the suction bowl 120 are made of flexible material.

[0087] Optionally, the unidirectional flow guide 130 is integrally formed with the connecting ring 111 and is disposed between the suction bowl 120 and the fitting cup 112. The connecting ring 111 is connected to the storage cavity 180 through the unidirectional flow guide 130 to realize the unidirectional milk dispensing function.

[0088] In this embodiment, the unidirectional flow guide 130 is a one-way valve. In other embodiments, the unidirectional flow guide 130 may also be a one-way diaphragm or other structures with unidirectional transmission capability, and its specific structural type is not limited.

[0089] Optionally, the outer wall of the connecting ring 111 is provided with a sealing boss 116, and the milk bowl 150 is provided with a sealing groove 151. The sealing groove 151 is annular, and the sealing boss 116 cooperates with the sealing groove 151 to seal the breathing cavity 170, prevent air leakage, and ensure the airtightness of the breathing cavity 170. In addition, the cooperation between the sealing boss 116 and the sealing groove 151 can also play a limiting role to fix the relative position of the connecting ring 111 and the milk bowl 150, and prevent the connecting ring 111 from being misaligned within the milk bowl 150.

[0090] It should be noted that the end of the fitting cup 112 away from the connecting ring 111 is provided with a flange groove 117, which is annular. The end of the milk bowl 150 is provided with a mating boss 152. The mating boss 152 mates with the flange groove 117 to fix the relative position of the milk bowl 150 and the fitting cup 112, thereby fixing the relative position of the milk bowl 150 and the entire bra 110, and realizing the assembly function of the milk bowl 150 and the bra 110.

[0091] Optionally, the cup 112 is provided with a handle 118, which is configured to be pulled to disengage the mating boss 152 and the flange groove 117, thereby enabling the disassembly of the milk bowl 150 and the bra 110 for easy cleaning. Specifically, the handle 118 is sheet-shaped or ring-shaped and has a small area to facilitate the application of force without affecting human comfort.

[0092] Optionally, the cup 112 has a first milk outlet 119, and the bowl 150 has a second milk outlet 153. The first milk outlet 119 and the second milk outlet 153 together form a milk outlet 190, which communicates with the storage cavity 180. The milk outlet 190 is configured to allow milk in the storage cavity 180 to be poured out. Specifically, the milk outlet 190 is located at the top of the entire wearable breast pump 100, that is, the first milk outlet 119 is located at the top of the cup 112, and the second milk outlet 153 is located at the top of the bowl 150, to ensure that milk does not flow out during the filling of the storage cavity 180. After pumping, the wearable breast pump 100 can be removed and inverted to pour out the milk in the storage cavity 180 through the milk outlet 190, which is convenient and practical.

[0093] Optionally, the handle 118 and the first milk outlet 119 are positioned opposite each other at both ends of the cup 112, with the first milk outlet 119 located at the top of the cup 112 and the handle 118 located at the bottom. This allows for quick and easy disassembly of the milk bowl 150 and the bra 110; one hand can pull the handle 118 while the other hand reaches into the milk outlet 190 to pry open the first milk outlet 119 and the second milk outlet 153.

[0094] Optionally, the suction mechanism 160 includes a housing 161 and a circuit board 162, a solenoid valve 163, an air pump 164, and an air tube 165 installed within the housing 161. The circuit board 162 is connected to the air pump 164 via the solenoid valve 163, and the circuit board 162 can control the air pump 164 to start or stop via the solenoid valve 163. Specifically, one end of the air tube 165 is connected to the air pump 164, and the other end is connected to the breathing cavity 170. When the air pump 164 is started, the air pump 164 can extract air from the breathing cavity 170 through the air tube 165 to achieve a negative pressure milk suction function.

[0095] Optionally, the suction mechanism 160 also includes a battery 166, which is installed inside the housing and is electrically connected to the circuit board 162, the solenoid valve 163 and the air pump 164. The battery 166 is configured to supply power to the circuit board 162, the solenoid valve 163 and the air pump 164.

[0096] Optionally, the milk bowl 150 has a notch 154, and the suction mechanism 160 is installed in the milk bowl 150 and disposed within the notch 154. That is, the suction mechanism 160 is embedded in the notch 154, and the suction mechanism 160 and the milk bowl 150 together form a dome shape to improve the integrity and aesthetics of the wearable breast pump 100. Specifically, the outer shell 161 of the suction mechanism 160 is detachably connected to the milk bowl 150 to facilitate assembly for milk expression and disassembly for cleaning.

[0097] Optionally, both the milk bowl 150 and the outer shell 161 are made of plastic material, which has high strength and low density, enabling the wearable breast pump 100 to be lightweight, easy to assemble and disassemble, and improve the user experience.

[0098] Optionally, the wearable breast pump 100 also includes a liner 140 adapted to the bra 110. Specifically, the liner 140 is installed inside the bra 110 and is located on the side of the suction bowl 120 away from the breathing cavity 170. The liner 140 is connected to the storage cavity 180 through a one-way flow guide 130. The liner 140 is configured to fit snugly against the breast and allow the nipple to extend into it. The suction bowl 120 is configured to elastically deform away from the liner 140 under the suction of the suction mechanism 160, so as to create negative pressure inside the liner 140 and draw out milk.

[0099] Optionally, the liner 140 is installed inside the connecting ring 111, which is configured to limit and fix the liner 140 to prevent it from falling out. The fitting cup 112 is configured to fit the breast to improve airtightness and ensure that a stable negative pressure is formed inside the liner 140 during breastfeeding.

[0100] Optionally, the unidirectional flow guide 130 is integrally formed with the connecting ring 111, and the inner liner 140 has a relief groove 142 that communicates with the unidirectional flow guide 130. The milk sucked out of the inner liner 140 can flow sequentially through the relief groove 142 and the unidirectional flow guide 130 to the storage cavity 180. Specifically, the unidirectional flow guide 130 is disposed on the lower side wall of the connecting ring 111, that is, the breast shield 110, the suction bowl 120, and the unidirectional flow guide 130 are integrally formed to further reduce the number of parts, simplify the disassembly and assembly process, and improve disassembly and assembly efficiency.

[0101] Optionally, the bra 110, suction bowl 120, and one-way flow guide 130 are all made of silicone material, which has a certain degree of elasticity, enables milk expression, and provides good comfort. In other embodiments of this disclosure, the bra 110, suction bowl 120, and one-way flow guide 130 may also be made of other flexible materials, and there is no limitation on the specific material type.

[0102] Optionally, the one-way flow guide 130 can also be separately provided from the bra 110 and detachably installed on the connecting ring 111 of the bra 110; in another optional embodiment, the one-way flow guide 130 can also be installed on the liner 140 or integrally formed with the liner 140. In this case, the bra 110 has a relief groove, which communicates with the one-way flow guide 130. The milk sucked out of the liner 140 can flow to the storage cavity 180 through the one-way flow guide 130 and the relief groove in sequence.

[0103] Optionally, the inner wall of the connecting ring 111 is provided with a guide groove 113, which extends along the axial direction of the connecting ring 111. The inner liner 140 is provided with a slide 143, which slides in cooperation with the guide groove 113. The slide 143 can slide relative to the guide groove 113, and the guide groove 113 can guide and limit the slide 143 to ensure that the inner liner 140 can only cooperate with the connecting ring 111 along the axial direction of the connecting ring 111, and to prevent the inner liner 140 from rotating relative to the connecting ring 111.

[0104] Optionally, the inner wall of the connecting ring 111 is provided with a groove 114, which is annular. The inner liner 140 is provided with a locking platform 144, which engages with the groove 114 to fix the relative position of the connecting ring 111 and the inner liner 140, preventing the inner liner 140 from accidentally coming off the connecting ring 111. Specifically, the groove 114 is located between the guide groove 113 and the suction bowl 120. When the inner liner 140 slides relative to the guide groove 113 to a preset position, the locking platform 144 engages with the groove 114. In this way, on the one hand, the groove 114 can limit the locking platform 144 to fix the relative position of the connecting ring 111 and the inner liner 140; on the other hand, since the groove 114 is annular, the engagement of the locking platform 144 and the groove 114 can provide a sealing effect, preventing air leakage and ensuring airtightness.

[0105] Optionally, the connecting ring 111 is provided with a stepped surface 115, and the guide groove 113 is provided between the slot 114 and the stepped surface 115. When the inner liner 140 slides relative to the guide groove 113 to a preset position, the inner liner 140 abuts against the stepped surface 115. At this time, the stepped surface 115 can limit the inner liner 140 to prevent the inner liner 140 from continuing to slide into the guide groove 113, thus playing a role in preventing mistake and limiting movement.

[0106] Optionally, the inner liner 140 includes an inner liner frame 145, an inner liner body 146, a backstop 141, and a milk separator 147. The inner liner body 146 is fitted over the inner liner frame 145. The backstop 141 and the locking platform 144 are both disposed inside the inner liner body 146. The clearance groove 142 is formed on the inner liner body 146, and the slide 143 is disposed on the inner liner frame 145. The inner liner frame 145 is configured to support and position the inner liner body 146 to increase the structural strength of the entire inner liner 140 and prevent the inner liner 140 from deforming under negative pressure during milk expression.

[0107] Optionally, the anti-reverse buckle 141 is ring-shaped and configured to surround the nipple, and to always maintain a close fit with the breast during use to prevent milk from flowing back out and improve the user experience.

[0108] Optionally, a milk separator 147 is disposed inside the inner liner body 146, and a front cavity 148 is formed between the milk separator 147 and the suction bowl 120. The front cavity 148 enables the suction bowl 120 to quickly form a negative pressure during the deformation process, thereby improving the milk suction efficiency. In addition, the milk separator 147 can block the milk to prevent the milk from splashing onto the suction bowl 120.

[0109] Optionally, the milk separator 147 has a vent 149, which communicates with the front cavity 148. When the suction bowl 120 undergoes elastic deformation away from the inner liner 140 under the suction force of the suction mechanism 160, the volume of the front cavity 148 increases and a negative pressure is formed, so as to draw air from the inner liner body 146 through the vent 149, thereby creating a negative pressure in the inner liner body 146 and drawing out the milk.

[0110] Optionally, the strength of the inner liner skeleton 145 is greater than the strength of the inner liner body 146. Optionally, the inner liner body 146 is made of silicone material, and the inner liner skeleton 145 is made of hard silicone, plastic or metal material, which has high strength and can effectively support and position the inner liner body 146; the inner liner body 146 and the milk separator 147 are integrally molded, and optionally, the milk separator 147 is made of silicone material.

[0111] Specifically, during the operation of the wearable breast pump 100, the wearable breast pump 100 is first put on so that the bra 110 and the inner liner 140 are both in close contact with the breast (the inner liner 140 covers the areola), and the nipple is inserted into the inner liner 140; then the suction mechanism 160 is activated to extract the air from the breathing cavity 170, creating a negative pressure within the breathing cavity 170. This causes the suction bowl 120 to elastically deform away from the inner liner 140. At this time, because the inner liner 140 is tightly fitted to the breast, a negative pressure is created within the inner liner 140, thereby drawing out milk. The milk flows downwards under gravity and enters the storage cavity 180 through the one-way guide 130, thus storing the milk. During this process, due to the one-way guide 130, the milk in the storage cavity 180 will not flow back, ensuring the reliability of milk expression. After one expression is completed, the suction mechanism 160 is paused. At this time, the suction bowl 120 will spring back to its original position under its own elasticity and draw outside air into the breathing cavity 170. The air in the liner 140 will also return to normal air pressure, and no more milk will be expressed. This cycle repeats until the milk expression operation is completed.

[0112] The wearable breast pump 100 provided in the embodiments of this disclosure includes a bra 110 comprising an integrally formed connecting ring 111 and a fitting cup 112. A suction bowl 120 is disposed at the end of the connecting ring 111 away from the fitting cup 112 and is integrally formed with the bra 110. The bra 110, suction bowl 120, and milk bowl 150 together form a breathing cavity 170. A suction mechanism 160 communicates with the breathing cavity 170. The milk bowl 150 and the bra 110 together form a storage cavity 180. The suction bowl 120 is configured to elastically deform under the suction force of the suction mechanism, thereby creating a negative pressure inside the bra 110 and drawing out milk. A one-way guide 130 is configured to allow milk to flow into the storage cavity 180. The wearable breast pump 100 provided in the embodiments of this disclosure simplifies the assembly and disassembly process, saves time and effort, improves assembly and disassembly efficiency, facilitates milk expression, and enhances the user experience.

[0113] Referring to Figure 7, in other embodiments of the wearable breast pump 100 provided in this disclosure, the suction mechanism 160 may also be externally mounted.

[0114] It should be noted that the feeding bowl 150 no longer has a notch 154, and the suction mechanism 160 is no longer embedded in the notch 154, but is externally placed within the feeding bowl 150. Specifically, the feeding bowl 150 includes a bowl body 155 and a back cover 156. The bowl body 155 and the back cover 156 are detachably and sealed together. The breast shield 110 is connected to the bowl body 155. The bowl body 155, the back cover 156, the breast shield 110, and the suction bowl 120 together form a breathing cavity 170. The suction mechanism 160 is externally placed, and the air tube 165 of the suction mechanism 160 is connected to the back cover 156 to achieve negative pressure milk suction. In this way, with the same capacity of the feeding bowl 150, the wearable breast pump 100 is smaller, lighter, and provides a better user experience.

[0115] Please refer to Figures 8 to 18. An embodiment of this disclosure also provides a flexible breast shield, including a breast shield 2 and a breast suction channel 3 integrally connected to the breast shield 2. The breast suction channel 3 includes a negative pressure tube 31 connected to the breast shield 2 and configured to allow milk to flow out and generate negative pressure. The negative pressure tube 31 is provided with an integrally formed deformable part 312. The deformable part 312 is arranged along the opening of the breast shield 2 toward the end of the negative pressure tube 31. The deformable part 312 deforms under the action of a negative pressure source to form a negative pressure inside the negative pressure tube 31. The breast shield 2 and the negative pressure tube 31 are made of elastic material.

[0116] The breast shield 2 is the component that comes into direct contact with the breast. During breast pumping, the breast shield 2 can completely fit the breast, ensuring that the negative pressure generated by the breast pump can smoothly extract breast milk. The milk extraction channel 3 is the component in the flexible breast pump that is configured to generate negative pressure. Traditional breast pumps generally have a funnel tube configured to allow milk to flow out and a negative pressure bowl connected to the funnel tube to generate negative pressure. The negative pressure bowl contains a diaphragm that generates negative pressure through reciprocating motion. The milk extraction channel 3 includes a negative pressure tube 31 connected to the breast shield 2. The negative pressure tube 31 in the flexible breast pump acts as a channel for milk to flow out and also serves to generate negative pressure. Compared with the traditional breast pump structure, it reduces the number of parts, simplifies the assembly process of the flexible breast pump, effectively improves production efficiency and reduces production costs, and also greatly reduces the overall size of the flexible breast pump, effectively improving its portability.

[0117] Optionally, the negative pressure tube 31 is provided with a deformation part 312, which is the part of the negative pressure tube 31 that generates negative pressure. It can enable the negative pressure tube 31 to generate the necessary negative pressure through its own deformation during operation, thereby achieving the purpose of milk suction.

[0118] Optionally, the deformable part 312 is arranged from the opening of the breast shield 2 toward the end 31 of the negative pressure tube. This design can maximize the deformation capacity of the deformable part 312, thereby improving the negative pressure effect and milk expression efficiency of the flexible breast shield. Optionally, the breast shield 2 and the negative pressure tube 31 are integrally molded, which can further reduce the number of parts and simplify the assembly process of the breast pump. In addition to improving production efficiency and reducing production costs, it also enhances the stability and sealing of the structure, reduces the connection gaps between parts, makes the flexible breast shield easy to clean, and effectively reduces the risk of bacterial growth and cross-infection.

[0119] Optionally, due to the functional requirements of the breast shield 2 and the negative pressure tube 31, silicone or rubber can be used as the material for the breast shield 2 and the negative pressure tube 31, but it is not limited to these two materials. Because silicone and rubber have excellent softness and elasticity, the breast shield 2 can conform well to the shape of the breast, providing a comfortable breastfeeding experience. At the same time, they have excellent elasticity, durability, and aging resistance, ensuring that the negative pressure tube 31 maintains a stable shape and performance when generating negative pressure, resisting wear from frequent deformation of the negative pressure tube 31, and effectively improving the service life and reliability of the flexible breast shield. In summary, by using the breast shield 2... The negative pressure tube 31 is integrally formed with the negative pressure tube 31, and a deformation part 312 is provided in the negative pressure tube 31, so that the negative pressure tube 31 simultaneously has the functions of the horn tube and the diaphragm of the breast pump. While generating negative pressure, it can also act as a milk outflow channel, reducing the size of the breast pump and effectively improving its portability. At the same time, it reduces the number of parts of the breast pump, effectively improving production efficiency and reducing production costs. It solves the problems of traditional breast pumps where the milk expression channel is set independently and connected to the horn assembly, resulting in a large breast pump size that is not convenient to carry when going out, reducing the portability of the breast pump, and the large number of parts that reduces production efficiency and increases production costs.

[0120] Optionally, the deformable part 312 is arranged along the axial direction of the negative pressure pipe 31.

[0121] This design means that the deformable portions 312 are distributed on opposite sides of the negative pressure tube 31, parallel to the horizontal direction. This design ensures that the deformable portions 312 can deform regularly and controllably during operation, thereby generating stable negative pressure and effectively improving the suction stability of the flexible breast shield. When the deformable portions 312 extend along the axial direction of the negative pressure tube 31, they are allowed to deform laterally towards the side of the negative pressure tube 31, thus generating negative pressure. This design effectively controls the deformation of the deformable portions 312, ensuring that the negative pressure generated by the deformable portions 312 remains stable, improving the suction stability of the flexible breast shield, and also facilitating cleaning of the negative pressure tube 31 after use, effectively improving the hygiene of the flexible breast shield. When the deformable part 312 extends circumferentially along the negative pressure tube 31, it allows the deformable part 312 to deform in the side and end face directions of the negative pressure tube 31, thereby realizing the process of generating negative pressure. With this design, the space for the effective deformation of the deformable part 312 can also be increased, thereby enhancing the negative pressure effect and effectively improving the milk suction efficiency of the flexible breast shield.

[0122] Specifically, based on the fact that the deformable portion 312 extends along the axial or circumferential direction of the negative pressure tube 31, the deformable portion 312 can be spirally arranged in the negative pressure tube 31 or linearly distributed in the negative pressure tube 31. Both shapes of the deformable portion 312 can further enhance the negative pressure effect of the deformable portion 312, thereby improving the milk-expressing performance and efficiency of the flexible breast shield. Optionally, the deformable portion 312 is distributed on both sides of the negative pressure tube 31. This design can ensure that the deformation of the deformable portion 312 is more balanced, resulting in... The negative pressure is evenly distributed in the negative pressure tube 31 to avoid excessive or insufficient local pressure, thereby improving the milk suction efficiency of the flexible breast shield. Specifically, the deformation part 312 can be mirror-distributed on the left and right sides of the negative pressure tube 31. This design can further ensure that when the negative pressure tube 31 is subjected to external force, the deformation of the deformation part 312 on the left and right sides of the negative pressure tube 31 is more balanced, thereby making the negative pressure generated by the negative pressure tube 31 more uniform and effectively improving the stability and effectiveness of the negative pressure generated by the flexible breast shield.

[0123] Optionally, the negative pressure tube 31 gradually narrows from the breast bra 2 toward the end of the negative pressure tube 31, and the cross-sectional diameter of the deformable part 312 decreases as the negative pressure tube 31 gradually narrows.

[0124] The negative pressure tube 31 gradually narrows from the breast shield 2 toward the end of the negative pressure tube 31. This design optimizes the airflow path within the negative pressure tube 32, improves the efficiency of negative pressure generation, and also optimizes the milk outflow channel, improving the efficiency of milk outflow from the inner cavity of the negative pressure tube 31 and preventing milk from stagnating in the inner cavity of the negative pressure tube 31. This effectively improves the structural rationality of the flexible breast shield.

[0125] Optionally, the cross-sectional diameter of the deformable portion 312 decreases as the negative pressure tube 31 gradually narrows. This means that the cross-sectional diameter of the deformable portion 312 near the end of the bra 2 is larger, while the cross-sectional diameter of the deformable portion 3121 near the bottom of the negative pressure cover 2 is smaller. This design makes the deformable portion 3121 near the end of the bra 2 have stronger deformation capability, while the deformable portion 312 near the end of the negative pressure tube 31 has weaker deformation capability. Since the distance between the deformable portion 312 near the end of the bra 2 and the breast is smaller, the deformation capability of the portion closer to the breast is reduced. The deformable part 312 at one end of the breast shield 2 is designed to have a strong deformability, which can maximize the suction force of the negative pressure generated by the deformable part 312 on the breast, thereby improving the milk pumping efficiency. On the other hand, the deformable part 312 at the end near the negative pressure tube 31 is designed to have a weak deformability, which can maximize the structural stability of the negative pressure tube 31 without affecting the milk pumping efficiency. This prevents the deformable part 312 from being over-deformed due to excessive external suction, thus preventing it from generating negative pressure normally. Therefore, this design can effectively improve the negative pressure stability of the flexible breast shield.

[0126] Optionally, there are multiple deformable portions 312, and the multiple deformable portions 312 are arranged at intervals, and the cross-section of the deformable portion 312 is wavy.

[0127] By setting multiple deformation portions 3121, the deformation capacity of the negative pressure tube 31 can be effectively improved, thereby enhancing the negative pressure effect generated by the negative pressure tube 31. Optionally, by arranging multiple deformation portions 312 at intervals, the pressure distribution of the negative pressure tube 31 can be ensured to be more uniform, reducing the situation of excessive or insufficient local pressure, and effectively improving the efficiency and stability of negative pressure generation. Optionally, by designing the cross-section of the deformation portion 312 as wavy, it can better conform to the natural shape of the breast, reduce pressure and discomfort, and improve the user experience. On the other hand, by designing the cross-section of the deformation portion 312 as serrated, it can provide more contact points between the breast bra 2 and the breast, increase the friction between the two, reduce slippage, and effectively improve the sealing and stability of the connection between the flexible breast bra and the breast.

[0128] Optionally, the breast pumping channel 3 further includes a one-way valve 33 connected to the negative pressure tube 31, and the one-way valve 33 is integrally formed with the negative pressure tube 31.

[0129] Optionally, the deformable portion 312 includes a plurality of protrusions 3121, with a smooth transition between each of the protrusions 3121.

[0130] The design of the protrusion 3121 allows the negative pressure tube 31 to have a certain elastic deformation capability in a specific area, providing additional deformation space for the deformable part 312, thereby enhancing the negative pressure effect of the deformable part 312 and improving the milk suction efficiency of the flexible breast shield. Specifically, the cross-section of the protrusion 3121 can be arc-shaped. This design makes it easier for the protrusion 3121 to deform under pressure, thereby generating the required negative pressure. At the same time, the arc-shaped cross-section of the protrusion 3121 can provide a more efficient negative pressure generation effect, effectively improving the negative pressure generation efficiency of the deformable part 312, thereby improving the milk suction performance of the flexible breast shield. Optionally, the smooth transition between each protrusion 3121 allows the protrusion 3121 to deform more easily under pressure, reducing the negative pressure required for the protrusion 3121 to deform, so that the deformable part 312 can generate negative pressure more efficiently, effectively improving the milk suction efficiency of the flexible breast shield.

[0131] Please refer to Figures 19 to 22. An embodiment of this disclosure also provides a breast pump, which includes the above-described flexible breast shield, a housing 4 connected to the flexible breast shield, an electric pump 5, and a power supply 6 electrically connected to the electric pump 5. The housing 4 is provided with a negative pressure cover 32 connected to the negative pressure tube 31.

[0132] The design of this breast pump integrates and optimizes the flexible breast shield, outer shell 4, electric pump, and power supply 6, achieving efficient and stable negative pressure generation while improving user comfort and milk expression. The flexible breast shield integrates the breast shield 2 with the negative pressure tube 31, and includes a deformation section 312 in the tube, enabling it to function as both the breast pump's horn and diaphragm. While generating negative pressure, it also acts as a milk flow channel, reducing the pump's size and portability. This design also reduces the number of parts, improving production efficiency and lowering costs. It solves the problems of traditional breast pumps with independently designed milk channels connected to the horn assembly, resulting in larger pumps that are inconvenient to carry, reducing portability, and having more parts, thus lowering production efficiency and costs.

[0133] Optionally, the outer shell 4 is provided with a negative pressure cover 32 connected to the negative pressure tube 31. The negative pressure cover 32 can ensure that the negative pressure tube 31 deforms within a controllable range, providing a more stable suction environment for the flexible breast shield, effectively improving the stability and reliability of the flexible breast shield, while preventing external objects from damaging the negative pressure tube 31, and effectively improving the service life of the flexible breast shield.

[0134] Optionally, the negative pressure cover 32 is integrally formed and connected to the outer shell 4. The negative pressure tube 31 has a first connecting part 311 connected to the breast cover 2 and a milk outlet 313 communicating with the inner cavity of the negative pressure tube 31 on one side. The first connecting part 311 is connected to the negative pressure cover 32 so that a negative pressure cavity 34 is formed between the negative pressure tube 31 and the negative pressure cover 32.

[0135] The negative pressure cover 32 is integrally formed and connected to the outer shell 4, which reduces the need for additional seals and connectors, simplifies the overall structure of the breast pump, reduces production costs, and improves the overall integrity and structural strength of the breast pump by reducing the number of component connections. Optionally, by providing a first connecting part 311 on one side of the negative pressure tube 31 and connecting it to the breast shield 2, a stable negative pressure chamber 34 is formed. The negative pressure chamber 34 helps the flexible breast shield stably generate and maintain the milk pumping capacity required for milk expression. The negative pressure effectively draws milk from the breast, improving the continuity, efficiency, and comfort of the pumping process. The design of the milk outlet 313 allows milk to flow smoothly from the negative pressure tube 31 for collection and storage. Furthermore, since the first connecting part 311 is connected to the breast shield 2, it supports the breast shield 2 when the various components of the breast pump are connected, preventing excessive deformation and ensuring proper milk flow. This effectively improves the stability and reliability of the flexible breast shield.

[0136] Optionally, the one-way valve 33 is designed to prevent milk backflow during breast pumping, ensuring a single airflow direction and thus improving pumping efficiency. It also enhances hygiene during the pumping process, reducing the risk of bacterial growth. Furthermore, the one-way valve 33 helps control airflow, ensuring the stability and continuity of negative pressure within the negative pressure tube 31, preventing poor pumping results due to unstable airflow. This effectively improves the structural rationality and functionality of the flexible breast shield. Optionally, designing the one-way valve 33 and negative pressure tube 31 as a single unit reduces the number of parts in the breast pump, simplifies the assembly process, and effectively improves efficiency. This design improves production efficiency and reduces production costs. It also reduces the risk of air leakage by minimizing connections between components, ensuring the airtightness of the inner cavity of the negative pressure tube 31. This effectively enhances the stability and reliability of the breast pump. If the one-way valve 33 and the negative pressure tube 31 are designed to be detachably connected, users can easily disassemble the one-way valve 33 and clean it, ensuring the hygiene and durability of both. Therefore, the design of the one-way valve 33 and its integral molding or detachable connection with the negative pressure tube 31 not only optimizes the performance of the breast pump but also provides users with a better user experience.

[0137] Optionally, the first connecting part 311 is provided with a first connecting groove 23 that cooperates with the negative pressure cover 32. The cross-sectional shape of the first connecting part 311 is L-shaped. The negative pressure cover 32 is engaged in the first connecting groove 23 to form the negative pressure cavity 34. The first connecting part 311 is provided with a first connecting port 3111 that communicates with the milk outlet 313. The first connecting groove 23 is annularly surrounding the outside of the negative pressure tube 31. The hardness of the negative pressure cover 32 is greater than the hardness of the negative pressure tube 31 and the hardness of the breast cover 2. The design of the first connecting groove 23 means that the negative pressure cover 32 forms the negative pressure cavity 34 by being snapped into the first connecting groove 23. Since the negative pressure tube 31 is made of a soft and elastic material, this connection method can effectively prevent the connection between the first connecting part 311 and the negative pressure cover 32 from loosening, ensuring the stability and sealing of the negative pressure cavity 34, effectively improving the structural stability and reliability of the flexible breast shield, and at the same time making the negative pressure cover 32 easy to disassemble, which is convenient for users to clean and maintain, effectively improving the practicality of the flexible breast shield.

[0138] Optionally, the cross-sectional shape of the first connecting portion 311 is L-shaped, meaning that the first connecting portion 311 can, to a certain extent, limit the relative deformation of the bra 2 and the negative pressure tube 31, preventing the connection between the first connecting portion 311 and the negative pressure cover 32 from loosening due to excessive deformation between the bra 2 and the negative pressure tube 31. This effectively improves the structural stability and reliability of the flexible breast shield, and also further ensures the stability and sealing of the negative pressure cavity 34. In addition, the first connecting groove 23 is annularly surrounding the outside of the negative pressure tube 31, which can maximize the connection area between the negative pressure cover 32 and the first connecting groove 23 at the first connecting portion 311, and maximize the connection stability between the negative pressure cover 32 and the first connecting groove 23. To ensure the stability and reliability of the negative pressure chamber 34, the first connecting part 311 is provided with a first connecting port 3111 communicating with the milk outlet 313. This design ensures that the milk in the negative pressure tube 31 can flow out smoothly, facilitating the collection and storage of the milk. Optionally, the hardness of the negative pressure cover 32 is greater than that of the negative pressure tube 31 and the breast shield 2. Since the materials of the negative pressure tube 31 and the breast shield 2 are soft and elastic, this design enables the negative pressure cover 32 to improve the structural strength of the flexible breast shield, preventing the flexible breast shield from deforming under external force and causing the connection between the various components to loosen, thus effectively improving the structural stability and reliability of the flexible breast shield.

[0139] Optionally, the negative pressure tube 31 abuts against the inner wall of the negative pressure cover 32. The negative pressure cover 32 is provided with a second connection port 321 that cooperates with the first connection part 311. The first connection part 311 is provided with a second connection groove 24 that cooperates with the second connection port 321. The second connection groove 24 is horizontally arranged along the extension direction of the negative pressure tube 31. The first connection part 311 is provided with a first extension part 3112 that cooperates with the breast pumping channel 3. The negative pressure cover 32 is provided on one side with a second connection part 322 that connects to an external electric pump and a third connection hole 323 that communicates with the negative pressure chamber 34. The third connection hole 323 is provided on the second connection part 322.

[0140] The negative pressure tube 31 abuts against the inner wall of the negative pressure cover 32, meaning that the negative pressure cover 32 can support the negative pressure tube 31. When the negative pressure tube 31 deforms, the negative pressure cover 32 can limit the deformation direction of the negative pressure tube 31, thereby controlling the deformation of the negative pressure tube 31 and ensuring that the negative pressure tube 31 can deform within a controllable range, providing stable suction and effectively improving the structural stability and reliability of the flexible breast shield. The abutment between the negative pressure tube 31 and the inner wall of the negative pressure cover 32 can be the side wall of the negative pressure tube 31 abutting against the side wall of the negative pressure cover 32 and / or the bottom of the negative pressure tube 31 abutting against the bottom of the negative pressure cover 32.

[0141] Optionally, the negative pressure cover 32 is provided with a second connection port 321 that mates with the first connection part 311, and the first connection part 311 is provided with a second connection groove 24 that mates with the second connection port 321. The design of the second connection port 321 and the second connection groove 24 mates with each other, further enhances the connection stability between the negative pressure tube 31 and the negative pressure cover 32, ensuring the sealing of the negative pressure chamber 34 and the structural stability of the flexible breast pump. Optionally, the second connection groove 24 is horizontally arranged along the extension direction of the negative pressure tube 31, which means that the mating connection between the first connection groove 23 and the negative pressure cover 32, and the mating connection between the second connection groove 24 and the second connection port 321, provides fixation and limitation in multiple directions, making the connection between the negative pressure cover 32 and the negative pressure tube 31 more stable. In addition, the horizontally arranged second connection groove 24 also plays a guiding role, reducing the difficulty of aligning the negative pressure cover 32 and the negative pressure tube 31, and also making the negative pressure cover 32 easy to disassemble, facilitating user cleaning and maintenance, and effectively improving the practicality and convenience of the breast pump.

[0142] In other embodiments, the deformable portion 312 may also be arranged circumferentially around the negative pressure pipe 31.

[0143] In other embodiments, the deformable portion 312 may also be distributed on the left and right sides of the negative pressure pipe 31.

[0144] In other embodiments, the cross-section of the deformed portion 312 may also be serrated.

[0145] In other embodiments, the one-way valve 33 may also be detachably connected to the negative pressure pipe 31.

[0146] Please refer to Figures 23 to 32. An embodiment of this disclosure also provides a breast pump flow guiding assembly, including a breast shield 1 and a flow guiding valve plate 12. The breast shield 1 is provided with a flow guiding seat 11, and the flow guiding seat 11 is provided with a milk outlet 111 configured to dissipate milk. The upper end of the flow guiding valve plate 12 is connected to the flow guiding seat 11. The flow guiding valve plate 12 is configured to open and close the milk outlet 111. The flow guiding valve plate 12 is elastic and can be bent to fit against the lower part of the milk outlet 111. The flow guiding seat 11 is provided with a connecting structure 2 that can keep the flow guiding valve plate 12 in a bent state.

[0147] Optionally, the bra 1 is flared to fit the shape of the breasts closely. A flow guide seat 11 is provided at the lower part of the bra 1, which provides a base for the valve body and effectively guides the milk flow.

[0148] The flow guide seat 11 is equipped with a milk outlet 111 configured to discharge milk. To ensure smooth milk output and prevent backflow, the flow guide seat 11 is also equipped with a flow guide valve plate 12 configured to open and close the milk outlet 111. The flow guide valve plate 12 is flexible and bendable, and is typically made of plastic or silicone. The upper end of the flow guide valve plate 12 is fixed to the flow guide seat 11, while the lower end of the flow guide valve plate 12 can be bent. After bending, the flow guide valve plate 12 can fit against the lower part of the milk outlet 111, effectively preventing milk from flowing back from the milk outlet.

[0149] A connecting structure 2 is provided between the flow guide seat 11 and the flow guide valve plate 12. The design of this connecting structure is intended to lock the bending state of the flow guide valve plate 12, further enhancing the sealing of the valve plate and ensuring smooth milk flow without leakage.

[0150] During manufacturing, the design of the flow guide plate 12 eliminates the need for bending in the initial stage, a feature that greatly simplifies the manufacturing process, especially when using injection molding, effectively improving production efficiency (it should be noted that during manufacturing, the flow guide plate 12 is installed vertically for easy demolding). During assembly, the flow guide plate 12 can be bent and fitted onto the milk outlet 111 with a simple operation to close the milk outlet 111.

[0151] Furthermore, the embodiments of this disclosure achieve locking of the bent state of the flow guide valve plate 12 through the connection structure 2, rather than by pressing the valve plate against the bottle neck, thus resulting in better sealing performance and longer service life.

[0152] Furthermore, compared with the duckbill-type one-way valve, the flow guide valve plate 12 in the breast pump flow guide assembly provided in the embodiments of this disclosure has a simple structure, a longer service life, and a smaller volume after bending, making the structure more compact and increasing the milk storage space.

[0153] Optionally, the breast shield 1, the flow guide seat 11, and the flow guide valve plate 12 are designed as a single piece, for example, they can be injection molded from silicone. This integrated design not only reduces the number of parts and lowers production costs, but also ensures the precision of the fit between the various parts, improving the stability and durability of the entire product. This innovative design makes the breast pump more convenient and efficient to use.

[0154] Please refer to Figures 23 to 25. The connecting structure 2 includes a limiting plate 21 disposed on the flow guide seat 11. The limiting plate 21 has a limiting hole 211, through which the free end of the flow guide valve plate 12 can be connected. This design allows the flow guide valve plate 12 to be reliably locked in this bent state after bending, thereby effectively sealing the milk outlet 111 and preventing the backflow of milk.

[0155] Optionally, the position of the limiting plate 21 can be flexibly designed. It can be located between the flow guide valve plate 12 and the milk outlet 111, or it can be located on both sides of the milk outlet 111, separate from the flow guide valve plate 12. Such a flexible design provides different usage methods and performance advantages.

[0156] Specifically, when the limiting plate 21 is positioned between the flow guide valve plate 12 and the milk outlet 111, the free end of the flow guide valve plate 12 passes through the limiting hole 211 and extends towards the milk outlet 111. This structural design allows the free end of the flow guide valve plate 12 to have greater room for movement, thereby improving the elasticity of the valve plate. During milk expression, this elasticity can better adapt to the dynamic changes in breast milk flow, ensuring that the milk outlet 111 can be opened and closed quickly and reliably during milk expression.

[0157] On the other hand, when the limiting plate 21 and the flow guide valve plate 12 are positioned on either side of the milk outlet 111, the middle part of the flow guide valve plate 12 will fit tightly against the milk outlet 111. This design ensures that both ends of the flow guide valve plate 12 are supported, effectively preventing deformation or sagging of the end of the flow guide valve plate 12 due to gravity during prolonged use. This design greatly improves the stability and durability of the flow guide valve plate 12, thereby extending the service life of the breast pump.

[0158] Optionally, for ease of bending, the flow guide valve plate 12 is provided with a bendable section near its upper end, and the bendable section is provided with a notch 12a (as shown in Figures 24 and 25) or a bend 12b (as shown in Figure 26).

[0159] Optionally, the limiting hole 211 is chamfered on the side near the flow guide plate 12 to facilitate the insertion of the flow guide plate 12 and reduce wear.

[0160] Optionally, a gap can be made at the connection between the upper end of the flow guide plate 12 and the flow guide seat 11 (as shown in Figure 27) to increase the elasticity of the flow guide plate 12, thereby facilitating the bending of the flow guide plate 12.

[0161] Referring to Figure 28, in other embodiments, the flow guide valve plate 12 has a perforated hole 124 in the middle. This perforated hole 124 not only enhances the milk outlet area and efficiency but also provides space for the valve plate 125. The valve plate 125, positioned within the perforated hole 124, effectively closes the milk outlet 111 after the flow guide valve plate 12 is bent, increasing the flexibility of the flow guide valve plate 12. Specifically, the presence of the perforated hole 124 and the valve plate 125 allows for a larger deformation range. The combination of the deformation of the flow guide valve plate 12 itself and the deformation of the valve plate 125 results in faster and more efficient milk flow. This design improves the smoothness of the breast pump during use, making the flow of breast milk more fluid.

[0162] In terms of specific construction, one side of the valve plate 125 is connected to the flow guide valve plate 12 (optionally, the valve plate 125 and the flow guide valve plate 12 are integrally connected). This connection method ensures that the valve plate can move freely with the movement of the flow guide valve plate 12. When the flow guide valve plate 12 bends, the valve plate 125 will close the milk outlet 111, forming a sealed structure to prevent milk leakage and backflow. This design not only improves the sealing performance of the breast pump but also enhances the smoothness of the pumping process, ensuring that breast milk is extracted to the maximum extent with each pumping session.

[0163] Similarly, in this embodiment, the position of the limiting plate 21 also maintains a flexible design. The limiting plate 21 can be located between the guide valve plate 12 and the milk outlet 111, forming a direct limiting effect; it can also be positioned on both sides of the milk outlet 111, separate from the guide valve plate 12. Regardless of the configuration chosen, the limiting plate 21 can effectively constrain the bending state of the guide valve plate 12, ensuring the stability of the valve plate when the milk outlet 111 is closed.

[0164] Referring to Figure 29, in other embodiments, the connecting structure 2 includes a limiting post 22 disposed on the flow guide seat 11. Furthermore, the flow guide valve plate 12 is also provided with a through hole 121 capable of engaging with the limiting post 22. The engaging engagement of the limiting post 22 and the through hole 121 locks the flow guide valve plate 12 in its bent state.

[0165] To further reinforce the connection between the limiting post 22 and the through hole 121, the top of the limiting post 22 is designed with a mushroom head structure. The shape of the mushroom head allows the limiting post 22 to have a better locking effect within the through hole 121, ensuring that it will not loosen or fall off during use.

[0166] Similarly, in this embodiment, the position of the limiting post 22 also maintains the feature of flexible design, that is, the limiting post 22 can be flexibly set between the guide valve plate 12 and the milk outlet 111, or it can be arranged on both sides of the milk outlet 111, separate from the guide valve plate 12.

[0167] Optionally, both sides of the through hole 121 are chamfered to facilitate the smooth insertion of the limiting post 22 or the mushroom head.

[0168] Referring to Figure 30, in other embodiments, the connecting structure 2 includes a retaining plate 23 disposed on the flow guide seat 11. The lower end of the retaining plate 23 is designed with two opposing elastic clips 231. This design allows the flow guide valve plate 12 to be easily secured between these two elastic clips 231 after bending, thereby achieving a stable connection. The elastic clips 231 not only enhance the bonding force between the flow guide valve plate 12 and the retaining plate 23, but also ensure that the flow guide valve plate 12 will not accidentally fall off during use. Optionally, the flow guide valve plate 12 has a notch at a corresponding position that can cooperate with the elastic clips 231.

[0169] In this embodiment, the position of the clamping plate 23 maintains a flexible design. Specifically, the clamping plate 23 can be flexibly positioned between the flow guide valve plate 12 and the milk outlet 111, or it can be positioned on both sides of the milk outlet 111, separate from the flow guide valve plate 12.

[0170] Please refer to Figure 31. In other embodiments, the connection structure 2 includes a first hook 24 provided on the flow guide seat 11, and the flow guide valve plate 12 is provided with a second hook 122 that can engage with the first hook 24.

[0171] Similarly, in this embodiment, the position of the first hook 24 also maintains the feature of flexible design, that is, the first hook 24 can be flexibly set between the guide valve plate 12 and the milk outlet 111, or it can be arranged on both sides of the milk outlet 111, separate from the guide valve plate 12.

[0172] Please refer to Figure 32. In other embodiments, the connection structure 2 includes a card hole 25 provided on the flow guide seat 11, and the flow guide valve plate 12 is provided with a card post 123 that can be inserted into the card hole 25 and press-fitted therewith.

[0173] Similarly, in this embodiment, the position of the locking hole 25 also maintains the feature of flexible design, that is, the locking hole 25 can be flexibly set between the flow guide valve plate 12 and the milk outlet 111, or it can be arranged on both sides of the milk outlet 111, separate from the flow guide valve plate 12.

[0174] Optionally, the lower end face of the milk outlet 111 is designed as an inclined surface 1111, and its inclination direction is gradually downward from the side closer to the guide valve plate 12 to the side farther away from the guide valve plate 12. The purpose of this inclined design is to optimize the contact effect between the guide valve plate 12 and the milk outlet 111, ensuring that the two can fit more tightly when combined.

[0175] Specifically, when the flow guide valve plate 12 is bent, its shape better matches the inclined surface 1111 of the milk outlet 111, forming a more sealed connection. This tight fit not only effectively prevents milk leakage but also improves fluid efficiency during milk expression, ensuring that milk can be smoothly and quickly discharged through the milk outlet 111. This design physically reduces resistance caused by loose seams, thereby improving the flow performance of the milk.

[0176] Furthermore, the inclined surface 1111 can reduce wear on the flow guide valve plate 12 during opening and closing to some extent. Because the angle between the two surfaces is more closely aligned, the reduced friction extends the service life of the flow guide valve plate 12.

[0177] Embodiments of this disclosure also provide a breast pump, including the aforementioned breast pump guide assembly, and further including a housing 3, and an elastically deformable portion 13 of the bra 1. Optionally, the elastically deformable portion 13 is pleated, and the pleated structure of the elastically deformable portion 13 not only increases its deformation capacity but also generates greater negative pressure.

[0178] It is worth noting that in this embodiment, the elastic deformation part 13 can be disposed either at the rear end of the bra 1 or on the side of the bra 1. When the elastic deformation part 13 is disposed on the side of the bra 1, the area that the elastic deformation part 13 can be disposed on is larger, and the traditional cumbersome suction bowl structure at the rear end of the bra 1 is eliminated, making the breast pump structure simpler, more efficient, and smaller in size.

[0179] A shell 3 (usually rigid) covers the elastic deformable part 13. That is, the shell 3 covers the elastic deformable part 13, and the two form a cavity 31. The function of this cavity 31 is to create a negative pressure by suction, which attracts the elastic deformable part 13 to deform, thereby creating a negative pressure inside the bra 1 to achieve the effect of milk suction.

[0180] To achieve this purpose, a negative pressure port 32 is provided on the housing 3. This port can be connected to an external negative pressure device (such as an air pump), and the user can control the pressure change inside the housing 3 by adjusting the intensity of the negative pressure, thereby achieving a better milk expression effect.

[0181] Optionally, the flow guide 11 is designed with a bottle interface 14 surrounding the milk outlet 111. The function of the bottle interface 14 is to provide a stable connection position for connecting the bottle, ensuring that the milk can flow smoothly into the bottle during the milking process. Typically, the bottle interface 14 adopts a threaded design, which not only provides a good sealing effect, but also makes the installation and removal of the bottle easier; the user only needs to rotate it gently to complete the connection.

[0182] The bra 1 is usually called a three-way connector, which includes a milk outlet 111, a negative pressure interface 32, and an opening that fits the breast.

[0183] Alternatively, the housing 3 can be designed as a single piece. This single-piece structure not only improves the overall strength and stability of the housing 3, but also reduces manufacturing costs.

[0184] The breast pump flow guide assembly provided in this disclosure locks the bent state of the breast pump flow guide valve plate through a connecting structure, rather than having the valve plate pressed against the bottle neck. This results in better sealing performance and a longer lifespan. More importantly, the design of the flow guide valve plate eliminates the need for initial bending during manufacturing, significantly simplifying the process, especially when using injection molding, and effectively improving production efficiency. During assembly, the flow guide valve plate can be easily bent and fitted onto the milk outlet to achieve closure.

[0185] Optionally, the breast shield, flow guide seat, and flow valve plate are designed as a single piece. This integrated design not only reduces the number of parts and lowers production costs, but also ensures the precision of the fit between the various parts, improving the stability and durability of the entire product. This innovative design makes the breast pump more convenient and efficient to use.

[0186] It should be noted that the wearable breast pump 100 mentioned above can be the same structure as the breast pump or a different structure; the one-way flow guide 130 can be the same structure as the breast pump flow guide assembly or a different structure; and the bra 110 can be the same structure as the breast bra 2 or a different structure.

[0187] The above are merely specific embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure. Industrial applicability

[0188] In summary, the embodiments of this disclosure provide a wearable breast pump, a flexible breast shield and breast pump, a breast pump flow guide assembly and breast pump, which can simplify the assembly and disassembly process, facilitate the assembly of breast pumps and disassembly for cleaning, improve assembly and disassembly efficiency, and enhance user experience; at the same time, it reduces the size of the breast pump, improves the portability of the breast pump, reduces the number of parts of the breast pump, improves production efficiency, and reduces production costs.

Claims

1. A wearable breast pump, comprising a bra, a suction bowl, a one-way flow guide, a milk bowl, and a suction mechanism, characterized in that, The bra includes an integrally formed connecting ring and a fitting cup. The suction bowl is located at the end of the connecting ring away from the fitting cup and is integrally formed with the bra. The bra, the suction bowl, and the milk bowl together form a breathing cavity. The suction mechanism is connected to the breathing cavity. The milk bowl and the bra together form a storage cavity. The suction bowl is configured to elastically deform under the suction force of the suction mechanism to create a negative pressure inside the bra and draw out milk. The connecting ring is connected to the storage cavity through the one-way flow guide, and the one-way flow guide is configured to allow milk to flow into the storage cavity.

2. The wearable breast pump according to claim 1, characterized in that, The outer wall of the connecting ring is provided with a sealing boss, and the milk bowl is provided with a sealing groove. The sealing groove is annular, and the sealing boss cooperates with the sealing groove to seal the breathing cavity.

3. The wearable breast pump according to claim 1 or 2, characterized in that, The fitting cup has a flanged groove at the end away from the connecting ring. The flanged groove is annular. The end of the milk bowl has a mating boss that mates with the flanged groove. The fitting cup is provided with a handle, which is configured to release the mating boss and the flange groove from their mating state.

4. The wearable breast pump according to any one of claims 1-3, characterized in that, The fitting cup has a first milk outlet groove, and the milk bowl has a second milk outlet groove. The first milk outlet groove and the second milk outlet groove together form a milk outlet, and the milk outlet is connected to the storage cavity.

5. The wearable breast pump according to any one of claims 1-4, characterized in that, The suction mechanism includes a housing and a circuit board, a solenoid valve, an air pump, and an air tube installed inside the housing. The circuit board is connected to the air pump through the solenoid valve. One end of the air tube is connected to the air pump, and the other end is connected to the breathing cavity.

6. The wearable breast pump according to any one of claims 1-5, characterized in that, The milk bowl has a notch, and the suction mechanism is installed in the milk bowl and located within the notch.

7. The wearable breast pump according to any one of claims 1-6, characterized in that, The milk bowl includes a bowl body and a back cover, the bowl body and the back cover are detachably and sealed together, and the suction mechanism is connected to the back cover.

8. The wearable breast pump according to any one of claims 1-7, characterized in that, The wearable breast pump also includes an inner liner that fits the bra, the inner liner being installed inside the connecting ring; The lining includes an inner lining skeleton and an inner lining body, with the inner lining body fitted over the inner lining skeleton.

9. The wearable breast pump according to claim 8, characterized in that, The one-way flow guide is installed on the connecting ring, and the inner liner has a relief groove, which communicates with the one-way flow guide. Alternatively, the one-way flow guide is installed on the liner, and the bra has a relief groove that communicates with the one-way flow guide; Alternatively, the one-way flow guide, the suction bowl, and the bra are integrally molded.

10. The wearable breast pump according to claim 8 or 9, characterized in that, The inner wall of the connecting ring is provided with a guide groove, which extends along the axial direction of the connecting ring. The inner lining is provided with a slide, which slides in cooperation with the guide groove. And / or, the inner wall of the connecting ring is provided with a slot, the slot is annular, and the inner lining is provided with a locking platform, which engages with the slot.

11. A flexible breast shield, characterized in that, The device includes a breast bra and a breast pump channel integrally connected to the breast bra. The breast pump channel includes a negative pressure tube connected to the breast bra and configured to allow milk to flow out and generate negative pressure. The negative pressure tube has an integrally formed deformable part, which is arranged along the opening of the breast bra toward the end of the negative pressure tube. The deformable part deforms under the action of a negative pressure source to create negative pressure inside the negative pressure tube. The breast bra and the negative pressure tube are made of elastic material.

12. A flexible breast shield according to claim 11, characterized in that, The deformable parts are arranged axially or circumferentially around the negative pressure pipe, or distributed on the left and right sides of the negative pressure pipe.

13. A flexible breast shield according to claim 11 or 12, characterized in that, The negative pressure tube gradually narrows from the breast bra toward the end of the negative pressure tube, and the cross-sectional diameter of the deformed part decreases as the negative pressure tube gradually narrows.

14. A flexible breast shield according to any one of claims 11-13, characterized in that, The number of deformable parts is multiple, and the multiple deformable parts are arranged at intervals. The cross-section of the deformable parts is wavy or sawtooth.

15. A flexible breast shield according to any one of claims 11-14, characterized in that, The breast pumping channel also includes a one-way valve connected to the negative pressure tube, and the one-way valve is integrally formed with the negative pressure tube or detachably connected.

16. A flexible breast shield according to any one of claims 11-15, characterized in that, The deformable portion includes multiple protrusions, with a smooth transition between each protrusion.

17. A breast pump, characterized in that, The device includes a flexible breast shield as described in any one of claims 11-16, a housing connected to the flexible breast shield, an electric pump, and a power source electrically connected to the electric pump, wherein the housing is provided with a negative pressure cover connected to the negative pressure tube.

18. The breast pump according to claim 17, characterized in that, The negative pressure cover is integrally formed and connected to the outer shell. The negative pressure tube has a first connecting part that connects to the breast cover and a milk outlet that communicates with the inner cavity of the negative pressure tube on one side. The first connecting part is connected to the negative pressure cover so that a negative pressure cavity is formed between the negative pressure tube and the negative pressure cover.

19. The breast pump according to claim 18, characterized in that, The first connecting part is provided with a first connecting groove that cooperates with the negative pressure cover. The cross-sectional shape of the first connecting part is L-shaped. The negative pressure cover is fitted into the first connecting groove to form the negative pressure cavity. The first connecting part is provided with a first connecting port that communicates with the milk outlet. The first connecting groove is annularly surrounding the outside of the negative pressure tube. The hardness of the negative pressure cover is greater than the hardness of the negative pressure tube and the hardness of the breast bra.

20. The breast pump according to claim 18 or 19, characterized in that, The negative pressure tube abuts against the inner wall of the negative pressure cover. The negative pressure cover is provided with a second connection port that mates with the first connection part. The first connection part is provided with a second connection groove that mates with the second connection port. The second connection groove is horizontally arranged along the extension direction of the negative pressure tube. The first connection part is provided with a first extension that mates with the breast pumping channel. One side of the negative pressure cover is provided with a second connection part that mates with an external electric pump and a third connection hole that communicates with the negative pressure chamber. The third connection hole is provided on the second connection part.

21. A breast pump flow guiding component, characterized in that: The device includes a bra and a flow guide valve plate. The bra has a flow guide seat with a milk outlet configured for discharging milk. The upper end of the flow guide valve plate is connected to the flow guide seat and configured to open and close the milk outlet. The flow guide valve plate is elastic and can be bent to fit against the lower part of the milk outlet. The flow guide seat has a connecting structure that allows the flow guide valve plate to remain bent. The flow guide seat and the flow guide valve plate are integrally formed.

22. A breast pump flow guiding assembly according to claim 21, characterized in that: The connection structure includes a limiting plate disposed on the flow guide seat, and the limiting plate is provided with a limiting hole, through which the free end of the flow guide valve plate passes.

23. A breast pump flow guiding assembly according to claim 21 or 22, characterized in that: The flow guide valve plate has a hollow hole in the middle, and a valve plate that can close the milk outlet after the flow guide valve plate is bent is provided in the hollow hole. One side of the valve plate is connected to the flow guide valve plate.

24. A breast pump flow guiding assembly according to any one of claims 21-23, characterized in that: The connection structure includes a limiting post provided on the flow guide seat, and the flow guide valve plate is provided with a through hole that can engage with the limiting post.

25. A breast pump flow guiding assembly according to any one of claims 21-24, characterized in that: The connection structure includes a retaining plate on the flow guide seat, and the lower end of the retaining plate is provided with two opposing elastic buckles, and the flow guide valve plate can be locked between the two elastic buckles after being bent.

26. A breast pump flow guiding assembly according to any one of claims 21-25, characterized in that: The connection structure includes a first hook provided on the flow guide seat, and a second hook provided on the flow guide valve plate that can engage with the first hook.

27. A breast pump flow guiding assembly according to any one of claims 21-26, characterized in that: The connection structure includes a retaining hole on the flow guide seat, and the flow guide valve plate is provided with a retaining post that can be inserted into the retaining hole and press against it.

28. A breast pump flow guiding assembly according to any one of claims 21-27, characterized in that: The flow guide valve plate has a bendable section near its upper end, and the bendable section has a notch or bend.

29. A breast pump flow guiding assembly according to any one of claims 21-28, characterized in that: The lower end face of the milk outlet is an inclined surface, and it gradually slopes downward from the side closer to the flow guide valve plate to the side farther away from the flow guide valve plate.

30. A breast pump, characterized in that: The breast pump guide assembly according to any one of claims 21-29 further includes a housing, the breast shield having an elastic deformation portion, the housing covering the elastic deformation portion and forming a negative pressure cavity between them, and the housing having a negative pressure port communicating with the negative pressure cavity.

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