Self-adsorption milk pumping apparatus and breast pump

Abstract

A self-adsorption milk pumping apparatus (100). The self-adsorption milk pumping apparatus (100) comprises a one-way valve (30), a self-adsorption shield (20), and a negative pressure forming unit (10). The negative pressure forming unit (10) is provided with a negative pressure cavity (13), a gas exchange channel (111), a milk pumping cavity (121), an assembly opening (122), and a milk discharge channel (123). The gas exchange channel (111) is in communication with the negative pressure cavity (13). The assembly opening (122) and the milk discharge channel (123) are respectively in communication with the milk pumping cavity (121). The milk pumping cavity (121) and the negative pressure cavity (13) are separated by a deformable component (125) of the negative pressure forming unit (10). The self-adsorption shield (20) is mounted to the assembly opening (122) of the negative pressure forming unit (10). The one-way valve (30) is mounted to the negative pressure forming unit (10) to selectively open and close the milk discharge channel (123). The self-adsorption shield (20) can be adsorbed onto the breast, so that the self-adsorption milk pumping apparatus (100) is adsorbed onto the breast, thereby assisting a user in pumping milk.

Description

Self-priming breast pumps and breast pumps Technical Field

[0001] The present invention relates to a breast pump, belonging to the technical field of maternal and infant products, and in particular to a self-adsorption milk sucking device and a breast pump. Background Art

[0002] A wearable breast pump is a device that can be placed inside a bra. The bra is used to secure the pump to the breast, allowing the mother to free her hands and even move around freely during breastfeeding. Consequently, wearable breast pumps have become increasingly popular in recent years. Existing wearable breast pumps have numerous drawbacks. For example, without the aid of a bra, the pump cannot be secured to the breast. Furthermore, after the pump is secured to the breast, the pump supports the bra forward, causing the sides of the bra to press against the sides and back of the breast, impacting comfort. Furthermore, the bra cup of a wearable breast pump is integrally attached to the main unit, and the cup's angle always matches the main unit's. The mother needs to adjust the cup's angle to change the cup's angle. However, due to the main unit's weight and the milk's weight acting on the main unit as the pump progresses, the cup's weight increases, causing it to slide downward. This downward movement of the cup inevitably causes the cup's angle to change, causing it to become misaligned, or even fall off the breast, leading to milk leakage. How to fix the breast pump on the breast without any assistance is a technical problem that the inventor of the present invention is committed to solving. Summary of the Invention

[0003] An object of the present invention is to provide a self-sucking milk extraction device and a breast pump, wherein the self-sucking milk extraction device can be sucked onto the breast without any assistance.

[0004] An object of the present invention is to provide a self-adhesive breast pump and a breast pump, wherein during the milking process, the self-adhesive cup of the self-adhesive breast pump can be reliably adsorbed on the breast, so that the self-adhesive breast pump can be adsorbed on the breast without any assistance.

[0005] One object of the present invention is to provide a self-adsorption milk suction device and a breast pump, wherein the center of gravity of the self-adsorption milk suction device is close to the self-adsorption cup, so that when the self-adsorption cup is adsorbed on the breast, the center of gravity of the self-adsorption milk suction device is closer to the body. In this way, the self-adsorption milk suction device can reduce the adsorption force requirement of the self-adsorption cup, thereby avoiding the self-adsorption milk suction device causing pressure on the breast during the milking process, thereby ensuring breast health.

[0006] One object of the present invention is to provide a self-adsorption milk suction device and a breast pump, wherein after the horn cover of the self-adsorption cover is fitted to the breast and the self-adsorption milk suction device is adsorbed on the breast, when the assembly ring of the self-adsorption cover changes with the position of the negative pressure forming unit, the shoulder ring of the self-adsorption cover can be deformed to prevent the horn cover from changing with the position of the negative pressure forming unit, so that the self-adsorption cover can be reliably adsorbed on the breast during the milking process.

[0007] One object of the present invention is to provide a self-priming breast pump and a breast pump, wherein the self-priming cover is detachable. In this way, on the one hand, the self-priming cover can be cleaned separately to improve the hygiene of the self-priming breast pump, and on the other hand, the mother can choose a suitable self-priming cover according to her needs to meet her personalized requirements.

[0008] One object of the present invention is to provide a self-adsorption breast pump and a breast pump, wherein when the self-adsorption cover is mounted on the negative pressure generating unit, the self-adsorption cover can be limited in position so that a gap exists between the shoulder ring and the negative pressure generating unit, so that when the assembly ring changes with the position of the negative pressure generating unit, the shoulder ring can be deformed. In addition, by limiting the position of the self-adsorption cover, the assembly ring can be prevented from blocking the milk discharge channel of the negative pressure generating unit, thereby ensuring smooth milk discharge.

[0009] One object of the present invention is to provide a self-sucking breast pump and a breast pump, wherein the self-sucking breast pump has a small size. Thus, after the self-sucking breast pump is sucked onto the breast, even if a bra needs to be worn, the self-sucking breast pump will not excessively push the bra outward. At the same time, the pressure exerted by the bra on the breast through the self-sucking breast pump will also be reduced, thereby improving the comfort of the mother when sucking milk through the self-sucking breast pump.

[0010] According to one aspect of the present invention, the present invention provides a self-sucking breast pump device, comprising:

[0011] a one-way valve;

[0012] a self-adhesive cover; and

[0013] A negative pressure generating unit, wherein the negative pressure generating unit has a negative pressure chamber, a gas exchange channel, a milk suction chamber, an assembly opening, and a milk discharge channel, the gas exchange channel is connected to the negative pressure chamber, the assembly opening and the milk discharge channel are respectively connected to the milk suction chamber, the milk suction chamber and the negative pressure chamber are separated by a deformable component of the negative pressure generating unit, wherein the self-adsorption cover is installed at the assembly opening of the negative pressure generating unit, and the one-way valve is provided on the negative pressure generating unit to selectively open and close the milk discharge channel.

[0014] According to one embodiment of the present invention, the self-adsorption cover has a deformable horn cover body. From a side view, there is a movable space between the horn cover body and the negative pressure forming unit to allow the deformed horn cover body to flip toward the negative pressure forming unit.

[0015] According to one embodiment of the present invention, the self-adsorption cover has a deformable trumpet cover body and a resistance portion, the trumpet cover body is used to wrap a part of the breast, and the resistance portion is used to resist the areola portion, wherein the distance D1 between the resistance portion and the outer edge of the trumpet cover body is greater than the distance D2 between the portion of the negative pressure forming unit used to define the assembly opening and the outer edge of the trumpet cover body.

[0016] According to one embodiment of the present invention, the self-adsorption cover has a resistance portion, which is used to resist the areola area, wherein the distance D1 between the resistance portion and the outer edge of the horn cover body is greater than the distance D2 between the portion of the negative pressure forming unit used to define the assembly opening and the outer edge of the horn cover body.

[0017] According to one embodiment of the present invention, the self-adsorption cover includes a shoulder ring body, an assembly ring body and a deformable horn cover body, the assembly ring body extends integrally to one side from the inner edge of the shoulder ring body, and the horn cover body extends integrally to the opposite direction from the outer edge of the shoulder ring body.

[0018] According to one embodiment of the present invention, the self-adsorption cover further has a shoulder ring body and an assembly ring body, the assembly ring body extends integrally to one side from the inner edge of the shoulder ring body, and the speaker cover body extends integrally to the opposite direction from the outer edge of the shoulder ring body.

[0019] According to one embodiment of the present invention, the self-adsorption cover has a resistance portion, which is located at the connection between the assembly ring body and the shoulder ring body and is used to resist the areola. The distance D1 between the resistance portion and the outer edge of the horn cover body is greater than the distance D2 between the portion of the negative pressure forming unit used to define the assembly opening and the outer edge of the horn cover body.

[0020] According to one embodiment of the present invention, the self-adsorption cover includes a shape-stabilizing portion, which is arranged at the connection position between the shoulder ring body and the speaker cover body to maintain the shape of the speaker cover body.

[0021] According to one embodiment of the present invention, the speaker cover is flexible, and the shoulder ring and the assembly ring are hard.

[0022] According to one embodiment of the present invention, the self-adsorption cover includes a shape stabilizing portion, which is arranged on the outside of the assembly ring body and the shoulder ring body to maintain the shape of the speaker cover body.

[0023] According to one embodiment of the present invention, the self-adsorption cover extends through the assembly opening of the negative pressure generating unit to the outside of the milk discharge channel to form a step.

[0024] According to one embodiment of the present invention, the shoulder ring body extends outward and forward from the assembly ring body in a direction substantially perpendicular to the assembly ring body, wherein the horn ring body extends outward and forward from the shoulder ring body in a direction substantially horizontal to the assembly ring body.

[0025] According to one embodiment of the present invention, the self-adsorption cover includes a limiting portion, which extends integrally from the peripheral wall of the assembly ring body in a direction perpendicular to the extension direction of the assembly ring body, and there is a gap between the limiting portion and the shoulder ring body.

[0026] According to one embodiment of the present invention, the distance d1 between the outer side of the limiting portion and the central axis of the self-adsorption cover is greater than the distance d2 between the outer side of the shoulder ring and the central axis of the self-adsorption cover.

[0027] According to one embodiment of the present invention, the hardness of the speaker cover of the self-adsorption cover ranges from 10A to 50A.

[0028] According to one embodiment of the present invention, the projection length L of the speaker cover of the self-adsorption cover in the horizontal plane ranges from 12 mm to 30 mm.

[0029] According to one embodiment of the present invention, the surface roughness of the inner wall of the speaker cover is in the range of Ra0.016um-Ra0.063um.

[0030] According to one embodiment of the present invention, an angle α between an extension direction of an inner wall of the speaker cover of the self-adsorption cover and a central axis of the self-adsorption cover is in a range of 15° to 40°.

[0031] According to one embodiment of the present invention, there is an angle α between the extension direction of the inner wall of the horn cover of the self-adsorption cover and the central axis of the self-adsorption cover, and there is an angle β between the extension direction of the inner wall of the shoulder ring body and the central axis of the self-adsorption cover, and the angle β is greater than the angle α.

[0032] According to one embodiment of the present invention, the negative pressure generating unit includes a supporting shell and a negative pressure generating part, the negative pressure generating part is mounted on the supporting shell, the negative pressure chamber is formed between the supporting shell and the negative pressure generating part, the gas exchange channel is provided in the supporting shell, the milk suction chamber, the assembly opening and the milk discharge channel are provided in the negative pressure generating part, wherein the self-adsorption cover and the one-way valve are respectively mounted on the negative pressure generating part.

[0033] According to one embodiment of the present invention, the support shell includes a shell body and a trumpet body extending outward integrally from one end of the shell body, the shell body having an installation cavity and a installation opening connected to the installation cavity, wherein the negative pressure forming part includes a deformation part and a skeleton part, the deformation part has a coupling end and a deformation end corresponding to the coupling end, the milk suction cavity, the assembly opening and the milk discharge channel are formed in the deformation part, and the skeleton part is coupled to the coupling end of the deformation part, wherein the skeleton part of the negative pressure forming part is mounted on the installation opening of the shell body, the deformation part extends to the installation cavity through the mounting opening, and the negative pressure cavity is formed between the deformation part and the shell body, wherein the deformation part is a deformable component of the negative pressure forming unit, used to separate the negative pressure cavity and the milk suction cavity.

[0034] According to another aspect of the present invention, the present invention further provides a breast pump comprising:

[0035] Breast pump host;

[0036] at least one trachea; and

[0037] At least one self-adsorption milk suction device, wherein the self-adsorption milk suction device further comprises a one-way valve, a self-adsorption cover and a negative pressure generating unit, wherein the negative pressure generating unit has a negative pressure chamber, a gas exchange channel, a milk suction chamber, an assembly opening and a milk discharge channel, the gas exchange channel is connected to the negative pressure chamber, the assembly opening and the milk discharge channel are respectively connected to the milk suction chamber, the milk suction chamber and the negative pressure chamber are separated by a deformable component of the negative pressure generating unit, wherein the self-adsorption cover is mounted on the assembly opening of the negative pressure generating unit, wherein the one-way valve is mounted on the negative pressure generating unit to selectively open and close the milk discharge channel, and wherein the air pipe is connected to the breast pump main body and the gas exchange channel of the negative pressure generating unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIG1 is a perspective schematic diagram of a breast pump according to a preferred embodiment of the present invention.

[0039] FIG2 is a schematic diagram of the breast pump in use according to the preferred embodiment of the present invention.

[0040] FIG3 is a perspective diagram of a self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention from one perspective.

[0041] FIG4 is a perspective schematic diagram of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention from another perspective.

[0042] FIG5 is an exploded schematic diagram of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention from one perspective.

[0043] FIG6 is an exploded schematic diagram of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention from another perspective.

[0044] FIG. 7 is a schematic cross-sectional view of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention from a three-dimensional perspective.

[0045] FIG8 is a schematic cross-sectional view of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention from a planar perspective.

[0046] FIG9 is an enlarged schematic diagram of a local position of FIG8 .

[0047] FIG10 is a cross-sectional schematic diagram of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention from another plane perspective.

[0048] FIG11 is an enlarged schematic diagram of a local position of FIG10.

[0049] FIG. 12 is a schematic diagram of the assembly process of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention, viewed from a cross-sectional perspective.

[0050] FIG13 is a schematic diagram of the assembly process of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention from another cross-sectional perspective.

[0051] FIG14 is a cross-sectional view of a first modified example of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention.

[0052] FIG15 is a cross-sectional view of a second modified example of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention.

[0053] FIG16 is a cross-sectional view of a third modified example of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention.

[0054] FIG17 is a cross-sectional view of a fourth modified example of the self-adsorption milk suction device of the breast pump according to the preferred embodiment of the present invention. DETAILED DESCRIPTION

[0055] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components set forth in the following description or illustrated in the following figures. The present invention is capable of other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used herein are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and their variations herein is intended to cover the items and their equivalents set forth below and additional items. Unless otherwise specified or limited, the terms "mounted", "connected", "supported" and "coupled" and their variations are used broadly and cover direct mounting and indirect mounting, connection, support and coupling. In addition, "connected" and "coupled" are not limited to physical or mechanical connections or couplings.

[0056] Furthermore, on the first hand, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which 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 operated in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second hand, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0057] With reference to Figures 1 and 2 of the accompanying drawings, a breast pump according to a preferred embodiment of the present invention will be disclosed and described below. The breast pump includes at least one self-sucking milk suction device 100, a breast pump main unit 200, and at least one air tube 300. The air tube 300 has opposite ends connected to the self-sucking milk suction device 100 and the breast pump main unit 200, respectively. The self-sucking milk suction device 100 can be sucked onto a breast. When the breast pump main unit 200 is in operation, the self-sucking milk suction device 100 can help a mother suck milk. In the breast pump of the present invention, the self-sucking milk suction device 100 can be sucked onto the breast without any assistance, for example, without wearing a bra. It is understood that the mother can wear a bra even after the self-sucking milk suction device 100 is sucked onto the breast.

[0058] Figures 3 to 13 show a specific example of the self-adsorption milk suction device 100, which includes a negative pressure generating unit 10, a self-adsorption cover 20 assembled on the negative pressure generating unit 10, and a one-way valve 30 assembled on the negative pressure generating unit 10.

[0059] Specifically, the negative pressure forming unit 10 includes a supporting shell 11 and a negative pressure forming part 12 and a negative pressure chamber 13, wherein the negative pressure forming part 12 is installed on the supporting shell 11, and the negative pressure chamber 13 is formed between the supporting shell 11 and the negative pressure forming part 12, wherein the supporting shell 11 has a gas exchange channel 111, and the gas exchange channel 111 is connected to the negative pressure chamber 13, wherein the negative pressure forming part 12 has a milk suction chamber 121 and an assembly opening 122 and a milk discharge channel 123 respectively connected to the milk suction chamber 121, the negative pressure chamber 13 and the milk suction chamber 121 are independent of each other, that is, the negative pressure chamber 13 and the milk suction chamber 121 are separated, wherein the self-adsorption cover 20 is assembled at the assembly opening 122 of the negative pressure forming part 12, wherein the one-way valve 30 is provided in the negative pressure forming part 12, and the one-way valve 30 selectively opens and closes the milk discharge channel 123. The self-adsorption cap 20 can be adsorbed on the breast, so that the self-adsorption breast pump device 100 is adsorbed on the breast.

[0060] In the specific example of the self-adhesive breast pump device 100 shown in FIG. 3 to FIG. 13 , the self-adhesive cup 20 has a contact portion 201 , and the contact portion 201 is used to contact the areola.

[0061] The gas exchange channel 111 of the support shell 11 can be connected to the breast pump main unit 200 via the air tube 300. When the mother attaches the self-adhesive breast pump device 100 to the breast by adhering the self-adhesive cover 20 to the breast, the areola abuts against the abutting portion 201 of the self-adhesive cover 20, so that the self-adhesive cover 20 covers the nipple. In this way, the areola and the one-way valve 30 can form a closed space in the milk suction chamber 121 of the negative pressure generating unit 12. When the breast pump main unit 200 is working, the air in the negative pressure chamber 13 of the negative pressure generating unit 10 can be discharged through the gas exchange channel 111 of the support shell 11 and the air tube 300 to reduce the pressure in the negative pressure chamber 13. At this time, the one-way valve 30 closes the milk discharge channel 123 of the negative pressure generating part 12, and the space of the milk suction chamber 121 of the negative pressure generating part 12 increases, resulting in a decrease in the pressure in the milk suction chamber 121. At this time, milk can be sucked out. In this process, the areola has a tendency to be pulled toward the milk suction chamber 121 of the negative pressure generating unit 12. Since the areola abuts against the resistance part 201 of the self-adsorption cover 20, the resistance part 201 of the self-adsorption cover 20 prevents the areola from being pulled toward the milk suction chamber 121 of the negative pressure generating unit 12, so that the areola is squeezed and the milk is squeezed, thereby improving the milk suction efficiency. Air from the external environment then enters the negative pressure chamber 13 of the negative pressure generating unit 10 through the air tube 300 and the gas exchange channel 111 of the support housing 11. The pressure in the negative pressure chamber 13 increases, and the one-way valve 30 opens the milk discharge channel 123 of the negative pressure generating portion 12 to discharge milk. The space in the milk suction chamber 121 of the negative pressure generating portion 12 decreases, causing the pressure in the milk suction chamber 121 to increase. By alternately lowering and raising the pressure in the negative pressure chamber 13 of the negative pressure generating unit 10, the breast pump can achieve milk extraction. That is, the negative pressure chamber 13 and the milk suction chamber 121 are separated by the deformable portion of the negative pressure generating unit 10, so that the pressure in the milk suction chamber 121 changes with the pressure in the negative pressure chamber 131.

[0062] In an example of the self-sucking breast pump device 100 shown in Figures 3 to 13 , the self-sucking hood 20 includes a shoulder ring 21, a mounting ring 22, and a deformable bell hood 23. The mounting ring 22 extends toward one side from the inner edge of the shoulder ring 21, and the bell hood 23 extends toward the opposite side from the outer edge of the shoulder ring 21. The abutment portion 201 of the self-sucking hood 20 is located at the junction of the shoulder ring 21 and the mounting ring 22. Preferably, in a specific example of the self-sucking breast pump device 100 of the present invention, the mounting ring 22 integrally extends toward one side from the inner edge of the shoulder ring 21, and the bell hood 23 integrally extends toward the opposite side from the outer edge of the shoulder ring 21. In other words, the self-sucking hood 20 is a single unitary body. For example, in some embodiments, the self-sucking hood 20 can be injection molded from a silicone material, such that the self-sucking hood 20 is flexible and integral.

[0063] Referring to Figure 8, the assembly ring body 22 of the self-adsorption cover 20 is assembled in the assembly opening 122 of the negative pressure forming part 12, and there is a movable space 1000 between the speaker cover body 23 and the negative pressure forming unit 10 to allow the deformed speaker cover body 23 to flip toward the negative pressure forming unit 10. When the mother attaches the self-adsorbing milk sucking device 100 to the breast by adsorbing the self-adsorbing cup 20 to the breast, the breast closes the opening of the horn cup 23. In this way, on the one hand, before the mother attaches the self-adsorbing milk sucking device 100 to the breast, the horn cup 23 can be turned toward the negative pressure generating unit 10. After the nipple is aligned with the milk suction cavity 121 of the negative pressure generating part 12 and the contact part 201 of the self-adsorbing cup 20 contacts the areola, the horn cup 23 is restored so that the horn cup 23 fits tightly to the breast. In this way, the breast can close the opening of the horn cup 23 and the self-adsorbing cup 20 can be adsorbed on the breast, and the contact part 201 of the self-adsorbing cup 20 keeps contacting the areola, so that during the milk sucking process, the milk suction cavity 121 of the negative pressure generating part 12 and the self-adsorbing cup A negative pressure environment is formed in a part of the internal space of 20; on the other hand, after the mother adsorbs the self-adsorption type breast pumping device 100 on the breast by adsorbing the self-adsorption cover 20 on the breast, the self-adsorption cover 20 isolates the negative pressure forming unit 10 and the breast, avoiding direct contact of the negative pressure forming unit 10 with the breast, and the flexible self-adsorption cover 20 can improve the comfort of the mother when using the breast pump; on the other hand, when the assembly ring body 22 of the self-adsorption cover 20 changes with the position of the negative pressure forming unit 10, the shoulder ring body 21 of the self-adsorption cover 20 can be deformed to prevent the horn cover body 23 from changing with the position of the negative pressure forming unit 10. In this way, during the milk pumping process, the self-adsorption cover 20 can always reliably fit the mother's breast, avoiding the self-adsorption breast pumping device 100 from falling from the breast and avoiding milk leakage.

[0064] In the self-sucking breast pumping device 100 of the present invention, referring to FIG8 , a distance D1 between the abutting portion 201 of the self-sucking cup 20 and the outer edge of the horn cup 23 is greater than a distance D2 between a portion of the negative pressure forming portion 12 for defining the assembly opening 122 and the outer edge of the horn cup 23, so that the abutting portion 201 of the self-sucking cup 20 is retracted. In this way, the center of gravity of the self-sucking breast pumping device 100 can be closer to the self-sucking cup 20, so that when the self-sucking cup 20 is sucked onto the breast, the center of gravity of the self-sucking breast pumping device 100 is closer to the body. In this way, the component force of the gravity of the self-sucking breast pumping device 100 acting on the breast can be reduced, so that the self-sucking breast pumping device 100 can reduce the suction force requirement of the self-sucking cup 20, thereby preventing the self-sucking breast pumping device 100 from falling off the breast and preventing the self-sucking breast pumping device 100 from causing pressure on the breast during milk sucking, thereby ensuring breast health.

[0065] In the self-adsorption breast pump device 100 of the present invention, referring to FIG8 , the shoulder ring body 21 extends outward and forward from the assembly ring body 22 in a direction substantially perpendicular to the assembly ring body 22, and the horn ring body 23 extends outward and forward from the shoulder ring body 21 in a direction substantially horizontal to the assembly ring body 22. In this way, when the outer edge of the horn cover body 23 and the outer edge of the assembly ring body 22 have a small distance, the outer edge of the horn cover body 23 can form a larger opening, and the self-adsorption cover 20 can form a smaller opening at the position of the interference portion 201. , so that the horn cover 23 can be adsorbed on the breast and the resistance part 201 can resist the areola position, so that when the self-adsorption cover 20 is adsorbed on the breast, the center of gravity of the self-adsorption milk suction device 100 is closer to the body, and the component force of the gravity of the self-adsorption milk suction device 100 acting on the breast can be reduced, so that the self-adsorption milk suction device 100 can reduce the adsorption force requirement of the self-adsorption cover 20, so as to avoid the self-adsorption milk suction device 100 falling from the breast and avoiding the self-adsorption milk suction device 100 causing pressure on the breast during the milk suction process, thereby ensuring breast health.

[0066] In addition, in the self-adsorption breast pumping device 100 of the present invention, the negative pressure generating unit 10 of the self-adsorption breast pumping device 100 does not need to be provided with any electronic components. Instead, the gas exchange channel 111 of the supporting shell 11 of the negative pressure generating unit 10 is connected to the breast pump main unit 200 through the air pipe 300. In this way, the self-adsorption breast pumping device 100 can have a lighter weight and a smaller size. Not only can the center of gravity of the self-adsorption breast pumping device 100 be closer to the self-adsorption cover 20 so that the self-adsorption breast pumping device 100 can be reliably adsorbed on the breast, but the lighter weight can also reduce the burden on the breast.

[0067] Continuing to refer to Figure 8, the inner wall of the speaker cover body 23 of the self-adsorption cover 20 is an inclined surface, and there is an angle α between its extension direction and the central axis of the self-adsorption cover 20. The angle α cannot be too small or too large. If the angle α is too small, the opening size of the speaker cover body 23 will be too small, and the speaker cover body 23 will not be able to cover the breast and the resistance part 23 of the self-adsorption cover 20 will not be able to resist the areola. Even if the breast is forced into the speaker cover body 23, the speaker cover body 23 will provide a large clamping force and act on the breast, causing breast discomfort or even damage to the breast. If the angle α is too large, the opening size of the speaker cover body 23 will be too large, and the speaker cover body 23 will not be able to fit the breast, and the self-adsorption cover 20 will not be able to adsorb the breast. In the self-adsorption breast pump device 100 of the present invention, the minimum value of the angle α is preferably not less than 15°, and the maximum value is preferably not greater than 40°. Therefore, the suitable range of the angle α is 15° to 40°.

[0068] In addition, referring to Figure 8, the inner wall of the shoulder ring body 21 of the self-adsorption cover 20 is an inclined surface, and an angle β is formed between its extension direction and the central axis of the self-adsorption cover 20. The angle of the angle β is greater than the angle of the angle α. In this way, when the outer edge of the speaker cover body 23 and the outer edge of the assembly ring body 22 are at a small distance, the outer edge of the speaker cover body 23 can form a larger opening, and the self-adsorption cover 20 can form a smaller opening at the position of the interference portion 201, so that the speaker cover body 23 can absorb Attached to the breast and the abutment portion 201 can abut the areola, so that when the self-adhesive cup 20 is adsorbed on the breast, the center of gravity of the self-adhesive milk pumping device 100 is closer to the body, and the component force of the gravity of the self-adhesive milk pumping device 100 acting on the breast can be reduced, so that the self-adhesive milk pumping device 100 can reduce the adsorption force requirement of the self-adhesive cup 20, thereby preventing the self-adhesive milk pumping device 100 from falling from the breast and preventing the self-adhesive milk pumping device 100 from causing pressure on the breast during milking, thereby ensuring breast health.

[0069] Continuing with FIG8 , the horizontal projection length L of the horn cover 23 of the self-adhesive cover 20 should be neither too large nor too small. If the projection length L is too small, the contact area between the horn cover 23 and the breast will be too small, which will prevent the self-adhesive cover 20 from reliably adhering to the breast. If the projection length L is too large, the weight of the self-adhesive breast pump 100 will increase, placing a burden on the breast. In the self-adhesive breast pump 100 of the present invention, the minimum value of the projection length L is preferably not less than 12 mm, and the maximum value is preferably not greater than 30 mm. Therefore, the appropriate range of the projection length L is 12 mm to 30 mm.

[0070] In addition, the hardness of the horn cover 23 of the self-adsorbing cover 20 ranges from 10A to 50A, ensuring flexibility while improving comfort. The surface roughness of the inner wall of the horn cover 23 of the self-adsorbing cover 20 ranges from Ra0.016um to Ra0.063um. In this way, when the horn cover 23 is adsorbed on the breast, there is a reasonable friction between the horn cover 23 and the breast, allowing the self-adsorbing cover 20 to stably adsorb the breast.

[0071] In an example of the self-priming breast pumping device 100 shown in Figures 3 to 13 , the mounting ring 22 of the self-priming cover 20 is detachably mounted to the negative pressure generating portion 12. This allows for easy cleaning of the self-priming cover 20, thereby improving the hygiene of the breast pump. Furthermore, mothers can select the appropriate self-priming cover 20 to meet their individual needs. For example, self-priming covers 20 of different materials, sizes, and shapes can all be selected and mounted on the same negative pressure generating portion 12.

[0072] In the specific example of the self-adsorption breast pump device 100 shown in Figures 3 to 13, the outer diameter of the assembly ring body 22 of the self-adsorption cover 20 is consistent with the inner diameter of the negative pressure generating part 12. Therefore, based on the friction force generated between the outer wall of the assembly ring body 22 and the inner wall of the negative pressure generating part 12, the assembly ring body 22 of the self-adsorption cover 20 can be reliably assembled to the negative pressure generating part 12.

[0073] With reference to Figures 7, 8, and 12, the assembly ring 22 of the self-adsorption cover 20 extends through the assembly opening 122 of the negative pressure generating portion 12 to the outside of the milk discharge passage 123 of the negative pressure generating portion 12, thereby forming a step. In this manner, the sucked milk can be blocked by the assembly ring 22, preventing the milk from flowing to the position of the horn cover 23, thereby preventing milk from leaking from the position where the horn cover 23 fits the breast. In other words, by allowing the assembly ring 22 of the self-adsorption cover 20 to extend through the assembly opening 122 of the negative pressure generating portion 12 to the outside of the milk discharge passage 123 of the negative pressure generating portion 12, the sucked milk is only allowed to be discharged through the milk discharge passage 123 of the negative pressure generating portion 12.

[0074] 5 to 9 , the self-adsorption cover 20 further includes a limiting portion 24, which extends integrally from the peripheral wall of the assembly ring body 22 in a direction perpendicular to the extension direction of the assembly ring body 22, and there is a gap between the limiting portion 24 and the shoulder ring body 21. In this way, when the assembly ring body 22 of the self-adsorption cover 20 is assembled to the assembly opening 122 of the negative pressure forming part 12, the limiting portion 24 limits the assembly depth of the assembly ring body 22 by abutting against the negative pressure forming part 12. On the one hand, the limiting portion 24 can ensure that there is a gap between the shoulder ring body 21 and the negative pressure forming portion 12, so that when the assembly ring body 22 changes with the position of the negative pressure forming unit 10, the shoulder ring body 21 can be deformed. On the other hand, the limiting portion 24 can ensure that the assembly ring body 22 extends through the assembly opening 122 of the negative pressure forming portion 12 to the outside of the milk discharge channel 123 of the negative pressure forming portion 12, thereby preventing the assembly ring body 22 from covering the milk discharge channel 123 of the negative pressure forming portion 12.

[0075] In the specific example of the self-adsorption breast pump device 100 shown in Figures 3 to 13, the limiting portion 24 is annular, and the distance d1 between the outer side of the limiting portion 24 and the central axis of the self-adsorption cover 20 is greater than the distance d2 between the outer side of the shoulder ring body 21 and the central axis of the self-adsorption cover 20. In this way, from the top view of the self-adsorption cover 20 (the angle perpendicular to the central axis of the self-adsorption cover 20), the limiting portion 24 covers the shoulder ring body 21, making the shoulder ring body 21 visually invisible.

[0076] 6 to 8 , the negative pressure forming portion 12 has an embedding groove 124, which surrounds the outer side of the assembly opening 122, and the limiting portion 24 of the self-adsorption cover 20 has an embedding protrusion 241, and the shape and size of the embedding protrusion 241 match the shape and size of the embedding groove 124 of the negative pressure forming portion 12, wherein the embedding protrusion 241 of the limiting portion 24 is embedded in the embedding groove 124 of the negative pressure forming portion 12, based on the friction force generated between the inner wall of the negative pressure forming portion 12 for forming the embedding groove 124 and the outer wall of the embedding protrusion 241 of the limiting portion 24, the assembly ring body 22 of the self-adsorption cover 20 can be reliably assembled to the negative pressure forming portion 12.

[0077] In the specific example of the self-adsorption breast pumping device 100 shown in Figures 3 to 13, the embedding groove 124 of the negative pressure generating portion 12 is annular and surrounds the assembly opening 122. Correspondingly, the embedding protrusion 241 of the limiting portion 24 of the self-adsorption cover 20 is annular and surrounds the assembly ring body 22. In this way, when installing the self-adsorption cover 20 on the negative pressure generating portion 12, there is no need to pay attention to the installation direction of the self-adsorption cover 20.

[0078] Continuing with reference to Figures 3 to 13, the support shell 11 includes a shell body 112 and a horn body 113 integrally extending outward from one end of the shell body 112. The shell body 112 has a mounting cavity 1121 and a mounting opening 1122 communicating with the mounting cavity 1121. The gas exchange channel 111 is disposed in the shell body 112 and communicates with the mounting cavity 1121 of the shell body 112. The negative pressure generating portion 12 includes a deformable portion 125 and a frame portion 126. The milk suction cavity 121, the assembly opening 122, and the milk discharge channel 123 of the negative pressure generating portion 12 are formed in the deformable portion 125. The deformable portion 125 has a coupling end 1251 and a deformable end 1252 corresponding to the coupling end 1251. The frame portion 126 is coupled to the coupling end 1251 of the deformable portion 125. The skeleton part 126 of the negative pressure forming part 12 is installed in the mounting opening 1122 of the shell body 112 of the supporting shell 11, and the deformation part 125 extends to the mounting cavity 1121 through the mounting opening 1122 of the shell body 112, and the negative pressure cavity 13 is formed between the deformation part 125 and the shell body 112.

[0079] When the breast pump host 200 is working, the air in the negative pressure chamber 13 of the negative pressure forming unit 10 is discharged through the gas exchange channel 111 of the supporting shell 11 and the air pipe 300 to reduce the pressure in the negative pressure chamber 13. At this time, the one-way valve 30 closes the milk discharge channel 123 of the negative pressure forming part 12, and the deformed end 1252 of the deformed portion 125 deforms toward the end close to the shell body 112 away from the horn body 113 to increase the space of the milk suction chamber 121 of the negative pressure forming part 12, resulting in a decrease in the pressure in the milk suction chamber 121. The force decreases, and as the air from the external environment enters the negative pressure chamber 13 of the negative pressure forming unit 10 through the trachea 300 and the gas exchange channel 111 of the supporting shell 11, the pressure in the negative pressure chamber 13 increases. At this time, the one-way valve 30 opens the milk discharge channel 123 of the negative pressure forming part 12 to discharge milk, and the deformed end 1252 of the deformed portion 125 deforms toward the end away from the shell main body 112 and away from the horn body 113, so as to reduce the space of the milk suction chamber 121 of the negative pressure forming part 12, thereby causing the pressure in the milk suction chamber 121 to increase.

[0080] It is worth noting that the manner in which the frame portion 126 is coupled to the coupling end 1251 of the deformable portion 125 is not limited in the self-sucking breast pumping device 100 of the present invention. For example, in one specific embodiment of the self-sucking breast pumping device 100 of the present invention, the deformable portion 125 and the frame portion 126 are manufactured separately, and glue is used to adhere the frame portion 126 to the coupling end 1251 of the deformable portion 125, thereby coupling the frame portion 126 to the coupling end 1251 of the deformable portion 125. In another specific embodiment of the self-sucking breast pumping device 100 of the present invention, the deformable portion 125 is first manufactured, and then the frame portion 126 is integrally coupled to the deformable portion 125 through a secondary encapsulation process, thereby coupling the frame portion 126 to the coupling end 1251 of the deformable portion 125. In another specific example of the self-adhesive breast pump 100 of the present invention, first, the skeleton portion 126 is manufactured, and then, the coupling end 1251 of the deformable portion 125 is integrally coupled to the skeleton portion 126 through a secondary encapsulation process, so that the skeleton portion 126 is coupled to the coupling end 1251 of the deformable portion 125.

[0081] In the specific example of the self-adhesive breast pump 100 of the present invention shown in Figures 3 to 13, the skeleton portion 126 of the negative pressure generating portion 12 surrounds the coupling end 1251 of the deformable portion 125, so that the skeleton portion 126 enables the negative pressure generating portion 12 to be securely mounted on the supporting shell 11.

[0082] 5 to 8 , the bottom of the skeleton portion 126 of the negative pressure forming portion 12 has an internal mounting arm 1261 and an arm body channel 1262. The arm body channel 1262 passes through the internal mounting arm 1261 and communicates with the milk discharge channel 123 of the negative pressure forming portion 12. The one-way valve 30 is mounted on the internal mounting arm 1261 of the skeleton portion 126 to set the one-way valve 30 in the negative pressure forming portion 12.

[0083] Preferably, the one-way valve 30 is a duckbill valve, and as the pressure of the milk suction chamber 121 of the negative pressure forming part 12 changes, the one-way valve 30 can switch between an open state and a closed state, wherein when the deformed end 1252 of the deformable portion 125 deforms toward the end close to the shell body 112 and away from the horn body 113, causing the pressure in the milk suction chamber 121 to decrease, the one-way valve 30 closes the milk discharge channel 123 of the negative pressure forming part 12; when the deformed end 1252 of the deformable portion 125 deforms toward the end away from the shell body 112 and away from the horn body 113, causing the pressure in the milk suction chamber 121 to increase, the one-way valve 30 opens the milk discharge channel 123 of the negative pressure forming part 12.

[0084] In an example of the self-adhesive breast pumping device 100 of the present invention shown in Figures 3 to 13, the negative pressure generating portion 12 is detachably mounted on the supporting shell 11. In this way, the negative pressure generating portion 12 can be cleaned after being removed from the supporting shell 11, thereby improving the hygiene of the self-adhesive breast pumping device 100.

[0085] Continuing with reference to Figures 10 to 13, the self-adhesive breast pump device 100 further includes at least one ball plunger 40, which includes a cylindrical portion 41, a compression spring 42, and a ball portion 43, wherein the cylindrical portion 41 has a cylindrical cavity 411 and a cavity opening 412 connected to the cylindrical cavity 411, the compression spring 42 is compressibly disposed in the cylindrical cavity 411 of the cylindrical portion 41, and the ball portion 43 is movably disposed in the cavity opening 412 of the cylindrical portion 41, and the bottom of the ball portion 43 abuts against the compression spring 42, and the top of the ball portion 43 protrudes from the cylindrical portion 41. The column portion 41 of the ball plunger 40 is fixedly mounted on the shell body 112 of the support shell 11, and the ball portion 43 protrudes from the mounting cavity 1121 of the shell body 112. The outer wall of the skeleton portion 126 of the negative pressure forming portion 12 has at least one retaining groove 1263. When the negative pressure forming portion 12 is mounted on the support shell 11, the outer wall of the skeleton portion 126 pushes the ball portion 43 toward the bottom of the column portion 41, so that the ball portion 43 squeezes the compression spring. The compression spring 42 deforms and accumulates elastic potential energy. When the negative pressure generating portion 12 is installed, the compression spring 42 pushes the ball head portion 43 in a direction away from the bottom of the column portion 41, causing the ball head portion 43 to protrude into the retaining groove 1263 of the frame portion 126. Based on the friction generated between the peripheral wall of the frame portion 126, which forms the retaining groove 1263, and the outer surface of the ball head portion 43, the ball head plunger 40 securely mounts the negative pressure generating portion 12 to the support housing 11. Accordingly, when removing the negative pressure generating portion 12 from the support housing 11, as long as the pulling force of the negative pressure generating portion 12 outward is greater than the friction generated between the peripheral wall of the frame portion 126, which forms the retaining groove 1263, and the outer surface of the ball head portion 43, the ball head portion 43 can be disengaged from the retaining groove 1263 of the frame portion 126.

[0086] It is worth noting that the manner in which the column portion 41 of the ball plunger 40 is fixedly mounted to the housing body 112 of the support housing 11 is not limited in the self-sucking breast pump device 100 of the present invention. For example, in this specific example of the self-sucking breast pump device 100 of the present invention, referring to Figures 10 and 11 , the housing body 112 of the support housing 11 has at least one mounting hole 1123, and the column portion 41 of the ball plunger 40 is mounted in the mounting hole 1123 of the housing body 112 to fixedly mount the column portion 41 to the housing body 112.

[0087] In a specific example of the self-adsorption breast pump device 100 of the present invention, the shell body 112 of the support shell 11 has two mounting holes 1123, and the two mounting holes 1123 are located on opposite sides of the mounting cavity 1121. The number of the ball plungers 40 is two, and the column portion 41 of each ball plunger 40 is fixedly mounted on each mounting hole 1123 of the shell body 112. In this way, one ball plunger 40 is provided on opposite sides of the mounting cavity 1121 of the shell body 112, and correspondingly, one holding groove 12 is provided on opposite sides of the skeleton portion 126 of the negative pressure forming portion 12. 63, so that when the negative pressure forming part 12 is installed on the shell body 112 of the support shell 11, the ball head parts 43 of the two ball head plungers 40 are respectively retained in the two retaining grooves 1263 of the skeleton part 126, so that the negative pressure forming part 12 can be reliably installed in the mounting opening 1122 of the shell body 112. In this way, the skeleton part 126 and the shell body 112 can squeeze a part of the deformation part 125, so that the part of the deformation part 125 organizes the gap between the skeleton part 126 and the shell body 112 by generating deformation, thereby ensuring the sealing of the negative pressure chamber 13.

[0088] In an example of the self-sucking breast pumping device 100 of the present invention shown in Figures 3 to 13 , the self-sucking breast pumping device 100 includes an airway unit 50, which includes an air guide seat 51 and a reversing seat 52. The air guide seat 51 has a transversely extending first airway 511, and a bottom insertion hole 512 and a top insertion hole 513 respectively connected to the first airway 511. The top of the housing body 112 of the support housing 11 has a housing insertion arm 1124. The opening of the gas exchange channel 111 is formed at the end surface of the housing insertion arm 1124. The air guide seat 51 is disposed on the top of the housing body 112 in such a manner that the housing insertion arm 1124 is inserted into the bottom insertion hole 512. The reversing seat 52 has a bottom insert arm 521, a side insert arm 522, and a second air passage 523. The second air passage 523 has one opening formed on the end surface of the bottom insert arm 521, and another opening formed on the end surface of the side insert arm 522. The bottom insert arm 521 of the reversing seat 52 is inserted into the top insertion hole 513 of the air guide seat 51, so that the negative pressure chamber 13 of the negative pressure generating unit 10, the first air passage 511 of the air guide seat 51, and the second air passage 523 of the reversing seat 52 are sequentially connected.

[0089] In the example of the self-sucking breast pumping device 100 shown in Figures 3 to 13 , by disposing the air guide seat 51 and the reversing seat 52 on the top of the housing body 112 of the support shell 11, the portion of the self-sucking breast pumping device 100 that connects to the air tube 300 (i.e., the side arms 522 of the reversing seat 52) ​​can be placed in a suitable location, avoiding this portion from occupying a large space. In other words, the provision of the air guide seat 51 and the reversing seat 52 of the airway unit 50 enables the self-sucking breast pumping device 100 to be miniaturized. This prevents the self-sucking breast pumping device 100 from excessively pushing outwards if the mother needs to wear a bra after attaching the self-sucking breast pumping device 100 to her breast. Furthermore, the pressure exerted by the bra on the breast through the self-sucking breast pumping device 100 is reduced, thereby improving the mother's comfort while expressing milk through the self-sucking breast pumping device 100.

[0090] In this example of the self-adsorption breast pumping device 100 shown in Figures 3 to 13, the bottom insertion arm 521 of the reversing seat 52 is detachably inserted into the top insertion hole 513 of the air guide seat 51. In this way, the mother can choose the orientation of the side insertion arm 522 of the reversing seat 52 as needed. For example, the mother can allow the bottom insertion arm 521 of the reversing seat 52 to be inserted into the top insertion hole 513 of the air guide seat 51 with the side insertion arm 522 of the reversing seat 52 facing the left as needed, or can allow the bottom insertion arm 521 of the reversing seat 52 to be inserted into the top insertion hole 513 of the air guide seat 51 with the side insertion arm 522 of the reversing seat 52 facing the right as needed. In this way, the mother does not need to distinguish between the two self-adsorption breast pumping devices 100 during the process of assembling the breast pump.

[0091] In the example of the self-sucking breast pump device 100 shown in Figures 3 to 13 , the negative pressure generating unit 10 further includes an outer housing 14 and a receiving chamber 15. The outer housing 14 has a positioning hole 141. The outer housing 14 is fixedly mounted to the outer edge of the horn 113 of the support shell 11 to form the receiving chamber 15 between the support shell 11 and the outer housing 14. The positioning hole 141 of the outer housing 14 communicates with the receiving chamber 15. The air guide seat 51 has a top boss 514. The opening of the top insertion hole 513 is formed at the end surface of the top boss 514. The air guide seat 51 is received in the receiving chamber 15 of the negative pressure generating unit 10, and the top boss 514 of the air guide seat 51 extends to the positioning hole 141 of the outer housing 14. It can be understood that since the shell arm 1124 of the shell body 112 of the supporting shell 11 is inserted into the bottom socket 512 of the air guide seat 51 and the top boss 514 of the air guide seat 51 extends to the positioning hole 141 of the outer cover shell 14, the air guide seat 51 is stably accommodated in the accommodating cavity 15 of the negative pressure forming unit 10. Regardless of whether the bottom arm 521 of the reversing seat 52 is inserted into the top socket 513 of the air guide seat 51 or the bottom arm 521 of the reversing seat 52 is pulled out from the top socket 513 of the air guide seat 51, the air guide seat 51 will not shift.

[0092] 7 and 8, the top of the shell body 112 of the support shell 11 has a positioning wall 1125, the positioning wall 1125 surrounds the bottom of the air guide seat 51, and the inner wall of the positioning wall 1125 fits the outer wall of the air guide seat 51. In this way, on the one hand, before the outer cover 14 is assembled to the support shell 11, the positioning wall 1125 of the shell body 112 can pre-position the air guide seat 51, so that when the outer cover 14 is assembled to the support shell 11, the positioning wall 1125 of the shell body 112 can pre-position the air guide seat 51. During the process of supporting the shell, the positioning wall 1125 of the shell body 112 can prevent the air guide seat 51 from being misplaced, thereby improving assembly efficiency. On the other hand, when the bottom insert arm 521 of the reversing seat 52 is inserted into the top socket 513 of the air guide seat 51 or the bottom insert arm 521 of the reversing seat 52 is pulled out from the top socket 513 of the air guide seat 51, the positioning wall 1125 of the shell body 112 can prevent the air guide seat 51 from being displaced.

[0093] Continuing to refer to Figures 5 to 8, the outer cover shell 14 includes an outer shell 142 and an anti-detachment cover 143, the positioning hole 141 is formed in the anti-detachment cover 143, wherein the outer shell 142 has a shell channel 1421, and the outer shell 142 is fixedly mounted on the outer edge of the speaker body 113 of the support shell 11, and the position of the top boss 514 of the air guide seat 51 corresponds to the position of the shell channel 1421 of the outer shell 142, wherein the anti-detachment cover 143 is fixedly mounted on the shell channel 1421 of the outer shell 142 in a manner that the top boss 514 of the air guide seat 51 is inserted into the positioning hole 141 of the outer cover shell 14, in this way, the support shell 11, the air guide seat 51 and the outer cover shell 14 can be conveniently installed and the misalignment of the air guide seat 51 can be avoided.

[0094] It is worth mentioning that the manner in which the outer shell 142 is fixedly mounted to the horn 113 of the support shell 11 is not limited in the self-sucking breast pumping device 100 of the present invention. For example, in this specific example of the self-sucking breast pumping device 100 of the present invention, referring to FIG5 , the rear side of the horn 113 of the support shell 11 has a plurality of snap-fitting arms 1131, each of which has a snap-fitting hole 11311. The inner wall of the outer shell 142 has a plurality of snap-fitting protrusions 1422. The snap-fitting arms 1131 of the horn 113 extend into the interior of the outer shell 142, and the snap-fitting protrusions 1422 of the outer shell 142 are respectively snapped into the snap-fitting holes 11311 of the snap-fitting arms 1131, so that the outer shell 142 is fixedly mounted to the horn 113 of the support shell 11. Optionally, in other specific examples of the self-adsorption breast pumping device 100 of the present invention, the clamping arm 1131 can be provided on the outer shell 142, and the clamping protrusion 1422 is provided on the horn body 113, so that the clamping arms 1131 of the outer shell 142 extend into the interior of the horn body 113, and the clamping protrusions 1422 of the horn body 113 are respectively clamped into the clamping holes 11311 of the clamping arms 1131 of the outer shell 142, so that the outer shell 142 is fixedly mounted on the horn body 113 of the support shell 11.

[0095] It is worth noting that the manner in which the anti-detachment cover 143 is fixedly mounted to the housing passage 1421 of the outer shell 142 is not limited in the self-sucking breast pumping device 100 of the present invention. For example, in this specific example of the self-sucking breast pumping device 100 of the present invention, referring to Figures 5 to 7 , the anti-detachment cover 143 has a plurality of hook arms 1431 on opposite sides thereof. The shape of the anti-detachment cover 143 matches the shape of the housing passage 1421 of the outer shell 142, and the size of the anti-detachment cover 143 is slightly larger than the size of the housing passage 1421 of the outer shell 142. The hook arms 1431 of the anti-detachment cover 143 extend from the outside to the inside of the housing passage 142 through the housing passage 142 of the outer shell 142, thereby fixing the anti-detachment cover 143 to the housing passage 142 of the outer shell 142, and the anti-detachment cover 143 seals the housing passage 1421 of the outer shell 142.

[0096] In the example of the self-adsorption breast pumping device 100 shown in Figures 3 to 13, the bottom of the shell body 112 of the support shell 11 has a mounting notch 1126, and the bottom of the skeleton part 126 of the negative pressure forming part 12 has an external mounting arm 1264, which surrounds the internal mounting arm 1261 and can be retained in the mounting notch 1126 of the shell body 112, wherein the self-adsorption breast pumping device 100 further includes a milk bottle 60, which is mounted The external mounting arm 1264 of the skeleton portion 126 is configured so that: on the one hand, the sucked milk can be collected in the milk bottle 60; on the other hand, the skeleton portion 126 is retained above the portion of the shell body 112 for forming the mounting notch 1126, and the milk bottle 60 is retained below. In this way, the skeleton portion 126 and the milk bottle 60 clamp the portion of the shell body 112 for forming the mounting notch 1126 on opposite sides to further ensure that the negative pressure forming portion 12 is reliably and stably mounted on the supporting shell 11.

[0097] 5 and 6 , the external mounting arm 1264 of the skeleton portion 126 of the negative pressure forming portion 12 has at least one snap-fitting groove 12641 extending in the circumferential direction and at least one guide groove 12642 extending in the height direction and connected to one end of the snap-fitting groove 12641. The bottle mouth of the milk bottle 60 has at least one snap-fitting protrusion 61. The snap-fitting protrusion 61 of the milk bottle 60 can slide into the snap-fitting groove 12641 through the guide groove 12642 of the external mounting arm 1264 of the skeleton portion 126 to install the milk bottle 60 on the external mounting arm 1264 of the skeleton portion 126.

[0098] FIG14 shows a modified example of the self-adsorption type breast pumping device 100 of the present invention. The difference from the self-adsorption type breast pumping device 100 shown in FIG3 to FIG13 is that in this specific example of the self-adsorption type breast pumping device 100 shown in FIG14, the shoulder ring body 21 and the assembly ring body 22 of the self-adsorption cover 20 are hard, and the horn cover body 23 is flexible. In this way, on the one hand, the shoulder ring body 21 can maintain the shape of the horn cover body 23, avoiding the horn cover body from being deformed. 23 is deformed. On the other hand, when the self-adsorption milk sucking device 100 moves downward due to its own gravity, the shoulder ring body 21 can slightly hold the speaker cover body 23, providing an inclined upward supporting force for the negative pressure forming unit 10, so that the self-adsorption milk sucking device 100 can be stably adsorbed on the breast. On the other hand, the assembly ring body 22 and the shoulder ring body 21 can directly transmit the vibration of the negative pressure forming unit 10 to the root of the breast, so as to facilitate the suction of the hind milk, thereby improving the milk suction effect.

[0099] FIG15 shows a modified example of the self-adsorption milk sucking device 100 of the present invention. Different from the self-adsorption milk sucking device 100 shown in FIG14, in this specific example of the self-adsorption milk sucking device 100 shown in FIG15, the shoulder ring body 21, the assembly ring body 22 and the horn ring body 23 of the self-adsorption cover 20 are flexible as a whole. At the same time, the self-adsorption cover 20 also includes a stabilizing portion 25, which is arranged on the outside of the assembly ring body 22 and the shoulder ring body 21 to maintain the shape of the horn cover body 23 and prevent the horn cover body 23 from deforming. At the same time, the provision of the stabilizing portion 25 is conducive to making the self-adsorption milk sucking device 100 stably adsorbed on the breast and directly transmitting the vibration to the root of the breast, which is conducive to sucking out the hind milk.

[0100] FIG16 shows a modified example of the self-adhesive breast pumping device 100 of the present invention. Unlike the self-adhesive breast pumping device 100 shown in FIG3 to FIG13 , in this specific example of the self-adhesive breast pumping device 100 shown in FIG16 , the shape stabilizing portion 25 is provided at the connection position between the shoulder ring 21 and the horn cover 23 to maintain the shape of the horn cover 23 and prevent the horn cover 23 from deforming.

[0101] Preferably, the shape-stabilizing portion 25 is annular and is wrapped inside the self-adsorption cover 20. For example, an insert injection molding process can be used to manufacture the self-adsorption cover 20, so that the shape-stabilizing portion 25 is wrapped inside the self-adsorption cover 20.

[0102] FIG17 shows a modified example of the self-sucking breast pumping device 100 of the present invention. Unlike the self-sucking breast pumping device 100 shown in FIG3 to FIG13 , in this specific example of the self-sucking breast pumping device 100 shown in FIG17 , the abutment portion 201 of the self-sucking breast pumping device 100 extends inward and rearward from the connection between the shoulder ring 21 and the assembly ring 22. When the self-sucking breast pumping device 100 is self-sucked onto the breast, the abutment portion 201 of the self-sucking breast pumping device 20 abuts the areola. During milk extraction, when the pressure in the milk extraction chamber 121 of the negative pressure generating unit 12 decreases, the areola is pulled toward the milk extraction chamber 121 of the negative pressure generating unit 12. The abutment portion 201 provides resistance to prevent the areola from deforming toward the milk extraction chamber 121 of the negative pressure generating unit 12. At this time, the areola is squeezed by the pressure, thereby improving milk extraction efficiency and massaging the areola. It is understood that the abutment portion 201 of the self-adhesive cap 20 deforms toward the milk suction chamber 121 of the negative pressure generating unit 12 while providing resistance, thereby preventing the areola from being squeezed while providing resistance, thereby improving comfort. Furthermore, a gap exists between the abutment portion 201 of the self-adhesive cap 20 and the nipple, allowing the nipple to be suspended in the air. This prevents the nipple from being damaged by pressure during milk extraction.

[0103] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A self-adsorption breast pumping device, characterized in that: include: a one-way valve; a self-adsorbing cover; and A negative pressure forming unit, wherein the negative pressure forming unit has a negative pressure chamber, a gas exchange channel, a milk suction chamber, an assembly opening and a milk discharge channel, the gas exchange channel is connected to the negative pressure chamber, the assembly opening and the milk discharge channel are respectively connected to the milk suction chamber, the milk suction chamber and the negative pressure chamber are separated by a deformable component of the negative pressure forming unit, wherein the self-adsorption cover is installed at the assembly opening of the negative pressure forming unit, wherein the one-way valve is provided at the negative pressure forming unit to selectively open and close the milk discharge channel.

2. The self-adsorption breast pump device according to claim 1, wherein the self-adsorption cover has a deformable trumpet cover body, and from a side view, there is a movable space between the trumpet cover body and the negative pressure forming unit to allow the deformed trumpet cover body to flip toward the negative pressure forming unit.

3. The self-adsorbing breast pump device according to claim 1, wherein the self-adsorbing cover has a deformable trumpet cover body and a resistance part, the trumpet cover body is used to wrap a part of the breast, and the resistance part is used to resist the areola part, wherein the distance D1 between the resistance part and the outer edge of the trumpet cover body is greater than the distance D2 between the part of the negative pressure forming unit used to define the assembly opening and the outer edge of the trumpet cover body.

4. The self-adsorbing breast pump device according to claim 2, wherein the self-adsorbing cover has a contact portion, the contact portion is used to contact the areola area, wherein the distance D1 between the contact portion and the outer edge of the horn cover body is greater than the distance D2 between the portion of the negative pressure forming unit used to define the assembly opening and the outer edge of the horn cover body.

5. The self-adsorbing breast pump device according to claim 1, wherein the self-adsorbing cover comprises a shoulder ring body, a mounting ring body and a deformable horn cover body, the mounting ring body integrally extends to one side from the inner edge of the shoulder ring body, and the horn cover body integrally extends to the opposite direction from the outer edge of the shoulder ring body.

6. The self-adsorbing breast pump device according to claim 2, wherein the self-adsorbing cover further comprises a shoulder ring body and an assembly ring body, the assembly ring body integrally extends to one side from the inner edge of the shoulder ring body, and the horn cover body integrally extends to the opposite direction from the outer edge of the shoulder ring body.

7. The self-adsorbing breast pump according to claim 6, wherein the self-adsorbing cover has a contact portion, the contact portion is located at the connection between the assembly ring body and the shoulder ring body, and is used to contact the areola, and the distance D1 between the contact portion and the outer edge of the horn cover body is greater than the distance D2 between the portion of the negative pressure forming unit used to define the assembly opening and the outer edge of the horn cover body.

8. The self-adsorbing breast pump according to claim 5, wherein the self-adsorbing cover comprises a shape-stabilizing portion, and the shape-stabilizing portion is arranged at the connection position between the shoulder ring body and the horn cover body to maintain the shape of the horn cover body.

9. The self-adsorbing breast pump device according to claim 5, wherein the horn cover is flexible, and the shoulder ring and the mounting ring are hard.

10. The self-adsorbing breast pump according to claim 5, wherein the self-adsorbing cover comprises a shape-stabilizing portion, and the shape-stabilizing portion is arranged on the outer sides of the mounting ring body and the shoulder ring body to maintain the shape of the trumpet cover body.

11. The self-adsorption breast pump device according to any one of claims 1 to 7, wherein the self-adsorption cover extends through the assembly opening of the negative pressure generating unit to the outside of the milk discharge channel to form a step.

12. A self-adhesive breast pump according to claim 5, 6 or 7, wherein the shoulder ring extends outwardly and forwardly from the mounting ring in a direction substantially perpendicular to the mounting ring, and wherein the flared ring extends outwardly and forwardly from the shoulder ring in a direction substantially horizontal to the mounting ring.

13. The self-adsorbing breast pump device according to claim 5, 6 or 7, wherein the self-adsorbing cover comprises a limiting portion, the limiting portion integrally extends from the peripheral wall of the mounting ring body in a direction perpendicular to the extension direction of the mounting ring body, and there is a gap between the limiting portion and the shoulder ring body.

14. The self-adsorbing breast pump according to claim 13, wherein the distance d1 between the outer side of the limiting portion and the central axis of the self-adsorbing cup is greater than the distance d2 between the outer side of the shoulder ring and the central axis of the self-adsorbing cup.

15. The self-adsorbing breast pump device according to any one of claims 2 to 7, wherein the hardness of the horn cover of the self-adsorbing cover ranges from 10A to 50A.

16. The self-adsorbing breast pump device according to any one of claims 2 to 7, wherein a projection length L of the horn cover body of the self-adsorbing cover on a horizontal plane ranges from 12 mm to 30 mm.

17. The self-adsorption breast pump device according to any one of claims 2 to 7, wherein the surface roughness of the inner wall of the horn cover is in the range of Ra0.016um-Ra0.063um.

18. The self-adsorption breast pump device according to any one of claims 2 to 7, wherein the angle α between the extension direction of the inner wall of the horn cover body of the self-adsorption cover and the central axis of the self-adsorption cover is in the range of 15° to 40°.

19. The self-adsorption breast pump device according to any one of claims 2 to 7, wherein an angle α is formed between the extension direction of the inner wall of the horn cover body of the self-adsorption cover and the central axis of the self-adsorption cover, an angle β is formed between the extension direction of the inner wall of the shoulder ring body and the central axis of the self-adsorption cover, and the angle β is greater than the angle α.

20. The self-adsorption breast pump device according to any one of claims 1 to 7, wherein the negative pressure forming unit comprises a supporting shell and a negative pressure forming part, the negative pressure forming part is mounted on the supporting shell, the negative pressure chamber is formed between the supporting shell and the negative pressure forming part, the gas exchange channel is provided on the supporting shell, the milk suction chamber, the assembly opening and the milk discharge channel are provided on the negative pressure forming part, wherein the self-adsorption cover and the one-way valve are respectively mounted on the negative pressure forming part.

21. The self-adsorption breast pumping device according to claim 20, wherein the supporting shell comprises a shell body and a horn body integrally extending outward from one end of the shell body, the shell body having an installation cavity and an installation opening connected to the installation cavity, wherein the negative pressure forming part comprises a deformation part and a skeleton part, the deformation part having a combining end and a deformation end corresponding to the combining end, the milk suction cavity, the assembly opening and the milk discharge passage are formed in the deformation part, the skeleton part is combined with the combining end of the deformation part, wherein the skeleton part of the negative pressure forming part is installed in the installation opening of the shell body, the deformation part extends to the installation cavity through the installation opening, the negative pressure cavity is formed between the deformation part and the shell body, wherein the deformation part is a deformable component of the negative pressure forming unit, and is used to separate the negative pressure cavity and the milk suction cavity.

22. A breast pump, characterized in that include: Breast pump host; At least one trachea; as well as The self-adsorption breast pumping device according to any one of claims 1 to 21, wherein the air tube connects the breast pump main unit and the gas exchange channel of the negative pressure forming unit.

Images