Wearable and hand-holding-free lying suction type breast pump

Abstract

The wearable and hand-holding-free lying suction type breast pump comprises a breast pumping assembly and a negative pressure power device, and the breast pumping assembly comprises a milk bowl, a breast pumping cover, a three-way part, a bionic infant nipple and a one-way valve. On one hand, on the basis of one-way blocking formed at the three-way part of the bionic infant nipple and in combination with the layout of the milk sucking assembly, wearable and hand-holding-free lying sucking can be implemented at any lying angle, meanwhile, the bionic infant nipple can simulate the breast milk sucking action of an infant, milk secretion can be promoted, and discomfort of mothers can be relieved; on the other hand, based on the position of the air leakage hole, air flow generated by milk output can be effectively discharged out of the milk storage cavity, the occurrence rate of unsmooth or blocked air flow is reduced, meanwhile, stable negative pressure is maintained, interference of any lying posture is avoided, the pressure and frequency formed by the milk suction power device are adjustable, and the use requirements of different mothers are met.

Description

Technical Field

[0001] The present invention relates to the technical field of maternal and infant products, and in particular to a wearable, hands-free lying breast pump. Background Art

[0002] A breast pump is an instrument for pregnant women to use after giving birth. It is used by breastfeeding mothers to suck breast milk from their breasts and then store it. A conventional breast pump includes a breast pump assembly and a negative pressure source. The breast pump assembly includes a connecting part with a three-way connection and a breast shield. The feeding bottle, the negative pressure source, and the breast shield are respectively connected to the three interfaces of the three-way connection. When in use, the breast shield is pressed against the mother's nipple, and then under the action of negative pressure, the milk is sucked out and drips into the feeding bottle.

[0003] Currently, the core design of breast pumps is based on the user sitting or standing, relying on gravity to allow the sucked milk to naturally flow downward into the bottle. Once the user lies down to pump, the following technical problems arise:

[0004] 1) The bottle is no longer absolutely below the breast. If the user's body is tilted significantly (especially when lying nearly flat), the bottle may even be horizontal or slightly upward. In this case, the sucked milk cannot flow smoothly to the bottom of the bottle by gravity. At the same time, when the bottle is positioned relatively high, a small amount of milk in the tubing and connections may flow back into the catheter when the pump stops working or when the pressure changes. This not only contaminates the tubing and the machine, but also risks being sucked back into the main pump. In addition, it can easily cause milk to leak from the gaps in the interface, wetting clothing and bedding.

[0005] 2) When lying down, it is difficult and unnatural to keep the bottle securely in the ideal position, below the breast with the opening facing upwards (to prevent milk from spilling out of the bottle opening), and the bottle can easily tip over or shift.

[0006] 3) The shields or tubes of many breast pumps are designed with specific exhaust holes or airflow channels, the position and direction of which ensure free entry of air to maintain a stable negative pressure when sitting. When lying down, the body posture may compress or cover these air holes (such as pressing on the bed), or the air holes may be accidentally blocked by breast tissue due to changes in the angle of the shield, hindering the entry of air into the system. At the same time, in a lying position, if milk accumulates in the shield or proximal tube (due to changes in gravity), these liquids are more likely to submerge or block the path for air to enter. Air cannot enter smoothly, and negative pressure cannot be established or maintained normally. The airflow becomes sluggish or obstructed, causing the pump to work hard and the noise to increase. More importantly, it is impossible to generate stable and continuous negative pressure, which manifests as unstable suction, intermittent suction or too weak suction, insufficient suction, and a sharp drop in milk suction efficiency. Summary of the Invention

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an improved wearable, hands-free lying breast pump.

[0008] In order to achieve the above object, a technical solution adopted by the present invention is:

[0009] A wearable, hands-free lying breast pump includes a milking assembly and a negative pressure power generator. The milking assembly includes a milking bowl, a breast shield, and a three-way part. The three-way part has an air suction end, a milk suction end, and a milk discharge end. The milking bowl is detachably connected to the breast shield from the bowl mouth to form a milk storage chamber. The milking bowl is provided with an air vent located above the milk storage liquid level. The milking bowl is also provided with a negative pressure docking part sealed with the air suction end. The negative pressure power generator is detachably connected to the milking bowl and connected to the negative pressure docking part. The breast pump assembly further comprises a bionic baby nipple that fits the breast shield and is sealed and wedged in from the breast pump end, and a one-way valve that is arranged at the milk outlet end and located in the milk storage cavity. The wedged end of the bionic baby nipple is a deformable body that can simulate the action of an infant sucking breast milk, and a milk suction hole is opened on the deformable body. When negative pressure is formed at the suction end, the one-way valve closes and the milk suction hole opens as the deformable body deforms. When the negative pressure is released at the suction end, the milk suction hole closes as the deformable body repositions, and the one-way valve opens.

[0010] Preferably, the deformation body simulates a baby sucking breast milk by pulling upward and contracting synchronously, and retracting and opening synchronously in response to negative pressure. Based on the corresponding movement of the deformation body, the baby sucking breast milk is effectively simulated, which not only promotes breast milk secretion but also relieves the discomfort of breast engorgement.

[0011] Furthermore, when wearing and lying down for suction, the suction end and the milk suction end are arranged vertically, the milk discharge end is perpendicular to the vertical direction and faces the feet, and the connection between the milk discharge end and the three-way part is located on the upper side of the docking ring; the negative pressure power device is located on the opposite side of the milk discharge end and faces the head. Whether lying down or reclining, it can be worn without any hand support, without causing milk regurgitation, and the air can be released during the milk discharge process, which not only solves the problems of milk regurgitation and milk overflow, but also creates a smooth and stable airflow for easy operation.

[0012] According to one specific embodiment and preferred aspect of the present invention, a bionic baby pacifier comprises a flared portion that fits within a breastshield; a neck portion that fits within the breastshield and seals against the suction end; and a head portion that extends into the suction end, with the head portion partially or entirely forming a deformable portion. This bionic baby pacifier not only acts as a one-way valve to prevent milk backflow but also protects the nipple during sucking, preventing excessive nipple strain. Most importantly, it effectively simulates the action of an infant sucking milk, promoting milk secretion and alleviating the discomfort of breast engorgement.

[0013] Preferably, the flared portion, nipple neck, and nipple head are integrally formed. Alternatively, the flared portion and nipple neck are integrally formed, with the nipple head being sheathed within the nipple neck. This can be selected based on actual processing needs. Generally, the latter is preferred because it facilitates the processing and forming of the deformable body.

[0014] Furthermore, a docking ring is formed on the inner wall of the sucking end, and a docking groove is formed on the outer periphery of the nipple neck to match the docking ring. The docking ring and the docking groove cooperate to form a sealed and aligned connection, facilitating the sealed assembly of the bionic baby nipple and the three-way part.

[0015] According to another specific embodiment and preferred aspect of the present invention, the nipple head is spaced from the milk-sucking end, and the inner end of the nipple head is arched, wherein the arched end is a deformable body, and the milk-sucking holes are distributed on the arched end; because the deformation amount formed by the part is small, it fits the nipple better and forms an action more like a baby sucking breast milk.

[0016] Preferably, the outer diameter of the arched end gradually decreases in the inward wedging direction. Based on the diameter change, the baby's sucking action of breast milk can be better simulated during force application and resetting.

[0017] In some specific embodiments, the milk suction hole is in the shape of a slit, and when the arched end is not subjected to an applied force, the slit is relatively closed; when the arched end is stretched inward and deformed, the slit opens.

[0018] According to another specific embodiment and preferred aspect of the present invention, a breast shield includes a trumpet-shaped shield body and a rim formed at the trumpet-shaped end of the shield body, wherein the suction end is connected to the trumpet-shaped end of the shield body, and the rim is connected and covers the bowl mouth. Due to the shape of the breast shield, it can fit the breast more perfectly. The rim design not only facilitates the disassembly and assembly of the breast bowl, but also increases the contact area when the breast bowl is in contact, thereby improving the contact comfort.

[0019] Preferably, the edging includes an abutment ring extending horizontally outward from the edge of the bell mouth, and a ring body bent inward from the periphery of the abutment ring to form a covering groove, wherein the bowl mouth is sealed and clamped in the covering groove from the edge.

[0020] In some specific embodiments, the three-way portion is integrally formed with the housing, and the milk-sucking end forms the bell-shaped mouth of the housing, which is convenient for practical processing.

[0021] Preferably, the breast shield further comprises a cover, which is detachably mounted on the edge. The cover provides shielding protection, and when in use, the cover can be removed.

[0022] Furthermore, the negative pressure docking portion is cylindrical and is sealed and inserted relative to the suction end. A negative pressure chamber is formed on one side of the milk bowl and communicates with the negative pressure docking portion. The negative pressure power unit is connected to the milk bowl from the negative pressure chamber. This insertion fit connects the negative pressure chamber and the suction end. Moreover, during milking, the suction end is located at the top. Therefore, after the sucked milk impacts the negative pressure docking portion, it falls into the three-way portion due to its own weight and flows into the milk storage chamber due to the opening of the one-way valve.

[0023] Preferably, the pressure-matching portion and the negative pressure chamber are connected via a connecting portion, and a negative pressure channel is formed in the connecting portion. The first and second airflow ends of the negative pressure channel are connected to the negative pressure chamber and the negative pressure-matching portion, respectively. The negative pressure channel is tilted up and down, with the first airflow end higher than the second airflow end. Due to this high-low layout, even if a small amount of milk enters the negative pressure channel, it will automatically drip downward as the pressure decreases.

[0024] In some embodiments, a notch is formed on the corresponding side of the suction end to avoid the connection portion. This facilitates the sealed assembly of the three-way milk bowl. Furthermore, a plug is provided within the negative pressure chamber to close the first airflow end. When in use, the plug is simply removed.

[0025] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0026] The core design of existing breast pumps is based on the user's sitting posture. The bottle is no longer in a position absolutely lower than the breast. If the user's body is tilted greatly (especially when lying down), the bottle may even be in a horizontal or slightly upward angle. At this time, the sucked milk cannot smoothly rely on gravity to flow into the bottom of the bottle; at the same time, when the bottle is in a relatively high position, a small amount of milk in the pipes and joints may flow back into the catheter when the pump stops working or the pressure changes, which not only contaminates the pipes and the machine, but also poses a risk of being sucked back into the main pump. In addition, it is easy to cause milk to leak from the gaps in the interface and wet clothes and bedding; in a lying state, how to firmly keep the bottle in an ideal position below the breast with the opening upward (to avoid milk overflowing from the bottle mouth) is itself very difficult and unnatural, and the bottle is prone to tipping or shifting; the shields or pipes of many breast pumps are designed with specific The position and orientation of the vents or airflow channels ensure free air flow when sitting to maintain a stable negative pressure. When lying down, the body's posture may compress or cover these vents (such as pressing on the bed surface), or the vents may be accidentally blocked by breast tissue due to changes in the angle of the shield, hindering air from entering the system. At the same time, when lying down, if milk accumulates in the shield or proximal tube (due to changes in gravity), this liquid is more likely to submerge or block the air inlet path. Without smooth air entry, negative pressure cannot be properly established or maintained, and airflow becomes sluggish or obstructed, causing the pump to work hard and increase noise. More importantly, it cannot generate a stable and continuous negative pressure, resulting in unstable, intermittent, or too weak suction, insufficient suction, and a sharp drop in milk extraction efficiency. The present invention cleverly solves these shortcomings of existing structures through the overall design of the breast pump structure.After using the wearable, hands-free lying breast pump, first, the breast shield is placed against the mother's breast, the nipple is located in the bionic baby pacifier, and the air suction end and the milk suction end are distributed up and down, the milk discharge end is perpendicular to the up and down direction and faces the feet, and the connection part of the milk discharge end and the three-way part is located on the side and above the docking ring, and the negative pressure power device is located on the opposite side of the milk discharge end and faces the head; secondly, the negative pressure power device works to generate negative pressure, the one-way valve closes, the deformable body of the bionic baby pacifier moves to open the milk suction hole, and the milk enters the three-way part. At this time, the negative pressure power device relieves the negative pressure, the one-way valve opens, the deformable body of the bionic baby pacifier resets to close the milk suction hole, and the milk flows into the milk storage cavity through the one-way valve; finally, the negative pressure is repeated The formation and loss process allows the deformed body to simulate the baby's sucking action to complete milk sucking. Therefore, on the one hand, the present invention is based on the one-way barrier formed by the bionic baby pacifier at the three-way part, combined with the layout of the milk suction component, to meet the wearable and hands-free lying suction at any lying angle. At the same time, the bionic baby pacifier can simulate the baby's sucking action, which not only promotes milk secretion but also relieves the mother's discomfort; on the other hand, based on the position of the air vent, the air flow generated by the milk discharge can be effectively discharged from the milk storage cavity, reducing the incidence of air flow stagnation or obstruction, while maintaining a stable negative pressure, not affected by any lying posture, and the pressure and frequency formed by the milk suction power device are adjustable to meet the usage needs of different mothers. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of the wearable, hands-free lying breast pump of this embodiment;

[0028] Figure 2 for Figure 1 Schematic diagram of the structural decomposition;

[0029] Figure 3 for Figure 1 The main schematic diagram of

[0030] Figure 4 for Figure 3 Schematic top view of

[0031] Figure 5 for Figure 4 AA-direction cross-sectional view;

[0032] Figure 6 for Figure 2 Schematic diagram of the structure of the medium milk bowl;

[0033] Figure 7 for Figure 6 The main schematic diagram of

[0034] Figure 8 for Figure 7 BB-direction cross-sectional view;

[0035] Wherein: 1. Breast pump assembly; 10. Milk bowl; 10a. Air vent; 10b. Negative pressure chamber; 11. Breast shield; 110. Breast shield body; 111. Edge; b1. Abutment ring; b2. Enclosure; 112. Cover; 12. Tee; 12a. Suction end; q. Notch; 12b. Suction end; 12c. Milk discharge end; 13. Bionic baby pacifier; 130. Horn; 131. Neck of pacifier; c. Docking groove; 132. Head of pacifier; x. Deformer; 14. One-way valve; 15. Negative pressure docking portion; 16. Connecting portion; 160. Negative pressure channel; q1. First airflow end; q2. Second airflow end; 17. Docking ring; 18. Mouth plug

[0036] 2. Negative pressure power device. DETAILED DESCRIPTION

[0037] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In the present invention, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0043] like Figures 1 to 8 As shown, the wearable, hands-free lying breast pump of this embodiment includes a milk suction component 1 and a negative pressure power device 2. The milk suction component 1 includes a milk bowl 10, a breast shield 11, a three-way part 12, a bionic baby nipple 13 and a one-way valve 14.

[0044] In some specific embodiments, the milk bowl 10 is detachably connected to the breast shield 11 from the bowl mouth to form a milk storage cavity, wherein the milk bowl 10 is provided with an air vent 10a, which is located above the milk storage level; the breast shield 11 includes a trumpet-shaped shield body 110, a rim 111 formed at the trumpet end of the shield body 110, and a cover 112 detachably mounted on the rim 111, wherein the milk suction end 12b is connected to the trumpet end of the shield body 110, the rim 111 is sleeved and covered with the bowl mouth, and the cover 112 is detachably mounted on the rim 111; the three-way portion 12 has two tubes The bionic baby nipple 13 is formed vertically, with one of the tubes extending vertically upward and downward as a first tube, and the other tube connecting vertically to the middle of the first tube as a second tube. The first tube has an air intake end 12a and a milk extraction end 12b at either end, while the other end of the second tube serves as a milk discharge end 12c. The bionic baby nipple 13 includes a flared portion 130 that fits snugly into the breastshield 12, a nipple neck 131 that penetrates the breastshield 12 and seals against the milk extraction end 12b, and a nipple head 132 that extends into the milk extraction end 12b, with the nipple head 132 partially or entirely forming a deformation body x. The bionic baby nipple not only acts as a "one-way valve" to prevent milk backflow but also protects the nipple during breastfeeding, preventing excessive nipple strain. Most importantly, it effectively simulates the action of an infant sucking breast milk, promoting breast milk secretion and alleviating the discomfort of breast engorgement. The one-way valve 14 is detachable from the milk discharge end 12c and located within the milk storage chamber.

[0045] Specifically, the milk bowl 10 is further provided with a negative pressure docking portion 15 that is sealed with the suction end portion 12a. The negative pressure power generator 2 is detachable from the milk bowl 10 and communicates with the negative pressure docking portion 15. The negative pressure docking portion 15 is cylindrical and is relatively sealed and inserted into the suction end portion 12a. A negative pressure chamber 10b is formed on one side of the milk bowl 10 and is connected to the negative pressure docking portion 15. The negative pressure power generator 2 is connected to the milk bowl 10 through the negative pressure chamber 10b. The insertion fit relatively connects the negative pressure chamber 10b and the suction end portion 12a. Moreover, during milking, the suction end portion 12a is located at the top. Therefore, after the sucked milk impacts the negative pressure docking portion 15, it falls into the three-way portion due to its own weight and flows into the milk storage chamber due to the opening of the one-way valve 14.

[0046] In this example, the negative pressure docking portion 15 and the negative pressure chamber 10b are connected via a connecting portion 16, and a negative pressure channel 160 is provided in the connecting portion 16, wherein the first airflow end q1 and the second airflow end q2 of the negative pressure channel 160 are respectively connected to the negative pressure chamber 10b and the negative pressure docking portion 15, and the negative pressure channel 160 is tilted up and down, with the first airflow end q1 being higher than the second airflow end q2. Due to the high and low position layout, even if a small amount of milk enters the negative pressure channel, it will automatically drip downward as the pressure decreases. A gap q is formed on the corresponding side of the suction end 12a to avoid the connecting portion 16. This facilitates the sealed assembly of the three-way milk bowl. At the same time, a mouth plug 18 capable of closing the first airflow end q1 is also provided in the negative pressure chamber 10b. When in use, the mouth plug 18 is directly removed.

[0047] In some embodiments, the tee portion 12 is integrally formed with the housing 110, with the suction end 12b forming the bell mouth of the housing 110. This facilitates practical processing. The rim 111 comprises an abutment ring b1 extending horizontally outward from the edge of the bell mouth, and a ring body b2 that bends inward from the periphery of the abutment ring b1 to form a covering groove. The bowl mouth is sealed within the covering groove from its edge.

[0048] The bionic baby pacifier 13 is wedged into the breast through its nipple head 132, while the nipple neck 131 forms a sealed connection with the suction end 12b. The nipple head 13 is a deformable body that can simulate an infant sucking breast milk, and is provided with a suction hole k. The deformable body simulates the infant sucking breast milk by pulling upward and contracting synchronously, and then retracting and resetting downward and opening synchronously in response to negative pressure. Based on the corresponding deformable body's movement, this effectively simulates an infant sucking breast milk, not only promoting breast milk secretion but also alleviating the discomfort of breast engorgement. The flared portion 130 and nipple neck 131 are integrally formed, with the nipple head 132 fitting over the nipple neck 131. A docking ring 17 is formed on the inner wall of the suction end 12b, and a docking groove c is formed on the outer periphery of the nipple neck 131 to mate with the docking ring 17. The cooperation between the docking ring 17 and the docking groove c forms a sealed and aligned connection, facilitating the sealed assembly of the bionic baby pacifier and the three-way connection. The nipple head 132 is separated from the suction end 12a, and the inner end of the nipple head 132 is arched, with the arched end representing the deformation body x, and the suction holes k distributed on the arched end. Due to the small deformation of the arched end, it fits the nipple better, creating an action more similar to that of an infant sucking breast milk. The outer diameter of the arched end gradually decreases as it weds inward. This diameter change allows for a better simulation of an infant's sucking action during force application and resetting. The suction holes k are slit-shaped, and when the arched end is not subjected to force, the slit is relatively closed; when the arched end is stretched inward, the slit opens.

[0049] When wearing and lying down to suck, the suction end 12a and the milk suction end 12b are arranged vertically, the milk discharge end 12c is perpendicular to the vertical direction and faces the feet, and the connection between the milk discharge end 12c and the three-way part 12 is located on the side and above the docking ring 17; the negative pressure power device 2 is located on the opposite side of the milk discharge end 12c and faces the head. Whether lying down or reclining, it can be worn without hand support and will not cause milk regurgitation. In addition, the air can be released during the milk discharge process, which not only solves the problems of milk regurgitation and milk overflow, but also creates a smooth and stable airflow, making it easy to operate.

[0050] In summary, the implementation process of this embodiment is as follows (the mother is in a lying position):

[0051] First, place the breast shield downward against the mother's breast, with the nipple located in the bionic baby pacifier. The air suction end and the milk suction end are arranged vertically, while the milk discharge end faces the feet perpendicularly to the vertical direction. The connection between the milk discharge end and the three-way part is located above the side of the docking ring. The negative pressure power generator is located on the opposite side of the milk discharge end and faces the head. The milk storage cavity formed by the milk bowl and the breast shield is vertically arranged, with the air vent located at the upper part of the vertical cavity.

[0052] Secondly, the negative pressure actuator generates negative pressure, at which point the one-way valve closes, and the deformable body of the bionic baby pacifier moves to open the milk suction hole, allowing milk to enter the three-way part. Next, the negative pressure actuator releases the negative pressure, the one-way valve opens, and the deformable body of the bionic baby pacifier resets to close the milk suction hole. Milk flows through the one-way valve into the milk storage chamber, and the air entering the milk storage chamber is discharged from the air vent.

[0053] Finally, the process of forming and losing negative pressure is repeated so that the deformable body simulates the action of a baby sucking breast milk to complete the sucking.

[0054] In addition, the negative pressure power device of the present application is a conventional product, which can be directly used. At the same time, the size of the negative pressure and the frequency of movement can be adjusted according to the needs of use to meet the needs of different mothers.

[0055] In summary, on the one hand, the present invention is based on the one-way barrier formed by the bionic baby pacifier at the three-way part, combined with the layout of the milk suction component, to meet the needs of wearable and hands-free lying and sucking at any lying angle. At the same time, the bionic baby pacifier can simulate the baby's sucking action of breast milk, which not only promotes milk secretion but also relieves the mother's discomfort. On the other hand, based on the position of the air vent, the air flow generated by the milk discharge can be effectively discharged from the milk storage cavity, reducing the incidence of air flow obstruction or obstruction, while maintaining a stable negative pressure without being affected by any lying posture, and the pressure and frequency formed by the milk suction power device are adjustable to meet the needs of the mother. The outer diameter of the arched end gradually decreases in the inward wedging direction, and the diameter can better simulate the baby sucking breast milk during force and resetting. The outer milk suction hole is in the shape of a slit, and when the arched end is not subjected to an action force, the slit is relatively closed; when the arched end is stretched inward and deformed, the slit opens; the fourth aspect is based on the shape of the breast shield, so that it can fit the breast more perfectly, and the design of the edge not only facilitates the disassembly and assembly of the milk bowl, but also increases the contact area during friction, thereby improving the comfort of contact, and at the same time, the cover is disassembled and assembled on the edge, and a shielding protection is formed based on the cover. When in use, the cover can be removed; the fifth aspect is based on the plug-in fit to relatively connect the negative pressure chamber and the suction end, and during milk suction, the suction end is located at the upper part, Therefore, after the sucked milk hits the negative pressure docking part, it falls into the three-way part due to its own weight, and flows into the milk storage chamber due to the opening of the one-way valve. At the same time, the negative pressure channel is tilted up and down, and the first air flow end is higher than the second air flow end. Based on the layout of high and low positions, even if a small amount of milk enters the negative pressure channel, it will automatically drip down as the pressure decreases; on the sixth aspect, a gap is formed on the corresponding side of the suction end to avoid the connecting part, which facilitates the sealing assembly of the three-way milk bowl. At the same time, a plug that can close the first air flow end is also provided in the negative pressure chamber. When in use, the plug can be directly taken out.

[0056] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A wearable, hands-free, lying breast pump comprising a milking assembly and a negative pressure power generator. The milking assembly comprises a milking bowl, a breast shield, and a three-way connection, wherein the three-way connection has an air suction end, a milking end, and a milking end. The invention is characterized by: The milk bowl is detachably connected to the breast shield from the bowl mouth to form a milk storage chamber, wherein the milk bowl is provided with an air vent located above the milk storage liquid level, and the milk bowl is further provided with a negative pressure docking portion sealed with the suction end, and the negative pressure power device is detachably mounted on the milk bowl and connected with the negative pressure docking portion; the milk suction assembly also includes a bionic baby nipple that fits the breast shield and is sealed and wedged into the milk suction end, and a one-way valve that is arranged at the milk discharge end and located in the milk storage chamber, the wedged end of the bionic baby nipple is a deformable body that can simulate the action of an infant sucking breast milk, and a milk suction hole is provided on the deformable body, wherein when negative pressure is formed at the suction end, the one-way valve closes and the milk suction hole opens as the deformable body deforms; when the negative pressure at the suction end is relieved, the milk suction hole closes as the deformable body repositions, and the one-way valve opens.

2. The wearable, hands-free lying breast pump according to claim 1, characterized in that: The deformable body simulates the action of a baby sucking breast milk in the upward pulling and synchronous contraction, downward retraction and synchronous opening movements under negative pressure; and / or, when wearing the breast milk while lying down and sucking, the air suction end and the milk suction end are distributed up and down, the milk discharge end is perpendicular to the up and down direction and faces the feet, and the connection part between the milk discharge end and the three-way part is located on the upper side of the docking ring; the negative pressure power device is located on the opposite side of the milk discharge end and faces the head.

3. The wearable, hands-free lying breast pump according to claim 1 or 2, characterized in that: The bionic baby nipple comprises a trumpet portion fitted with a breast shield, a nipple neck inserted into the breast shield and sealed with a milking end, and a nipple head extending into the milking end, wherein the nipple head partially or entirely constitutes a deformable body.

4. The wearable, hands-free lying breast pump according to claim 3, characterized in that: The trumpet portion, the nipple neck and the nipple head are integrally formed; or the trumpet portion and the nipple neck are integrally formed, and the nipple head is sleeved on the nipple neck.

5. The wearable, hands-free lying breast pump according to claim 4, characterized in that: A docking ring is formed on the inner wall of the milking end, and a docking groove matching the docking ring is formed on the outer periphery of the nipple neck, wherein a sealing and alignment connection is formed based on the cooperation between the docking ring and the docking groove.

6. The wearable, hands-free lying breast pump according to claim 3, characterized in that: The nipple head is spaced from the milking end, and the inner end of the nipple head is arched, wherein the arched end is a deformable body, and the milking holes are distributed on the arched end; and / or, the outer diameter of the arched end gradually decreases based on the inward wedging direction; and / or, the milking holes are slit-shaped, and when the arched end is not subjected to an applied force, the slit is relatively closed; when the arched end is stretched inward and deformed, the slit opens.

7. The wearable, hands-free lying breast pump according to claim 1, characterized in that: The breast shield comprises a trumpet-shaped shield body and a rim formed at the trumpet-mouth end of the shield body, wherein the milk suction end is butted against the trumpet-mouth end of the shield body, and the rim is sleeved and covered with the bowl mouth.

8. The wearable, hands-free lying breast pump according to claim 7, characterized in that: The edging includes an abutment ring extending horizontally outward from the edge of the trumpet mouth, and a ring body bent inward from the periphery of the abutment ring to form a covering groove, wherein the bowl mouth is sealed and clamped in the covering groove from the edge; and / or, the three-way part is integrally formed with the shield body, and the milk suction end constitutes the trumpet mouth of the shield body; and / or, the breast shield also includes a cover, which is detachable from the edging.

9. The wearable, hands-free lying breast pump according to claim 1, characterized in that: The negative pressure docking part is cylindrical and is sealed and inserted relative to the suction end; a negative pressure cavity connected to the negative pressure docking part is formed on one side of the milk bowl, and the negative pressure power device is docked to the milk bowl from the negative pressure cavity.

10. The wearable, hands-free lying breast pump according to claim 9, characterized in that: The negative pressure docking part and the negative pressure chamber are connected through a connecting part, and a negative pressure channel is opened in the connecting part, wherein the first airflow end and the second airflow end of the negative pressure channel are respectively connected to the negative pressure chamber and the negative pressure docking part, and the negative pressure channel is tilted up and down, with the first airflow end higher than the second airflow end; and / or, a gap is formed on the corresponding side of the inhalation end to avoid the connecting part.

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