Wearable milk sucking device

Abstract

The utility model discloses a wearable milk sucking device, the wearable milk sucking device comprises a milk bottle and a negative pressure forming unit, the milk bottle is provided with a milk containing cavity, a fitting side and a deviating side relative to the fitting side, and the negative pressure forming unit is arranged on the cross section position of the milk bottle perpendicular to the height direction. The curvature of the feeding bottle on the attaching side is smaller than the curvature of the feeding bottle on the deviating side, the negative pressure forming unit is provided with a space-variable milk sucking cavity, a containing opening and a milk discharging channel, the containing opening and the milk discharging channel are communicated with the milk sucking cavity, and the feeding bottle is installed on the negative pressure forming unit. The milk containing cavity of the feeding bottle can be communicated with the milk discharging channel of the negative pressure forming unit, and the negative pressure forming unit and the feeding bottle are in an 8 shape or a B shape.

Description

[0001] This application is a divisional application of the application with the application date of March 27, 2024, application number 2024206146148, and invention title "Wearable Breast Pumping Device and Breast Pump". Technical Field

[0002] The utility model relates to the field of mother and baby products, and particularly relates to a wearable breast pumping device. Background Art

[0003] A wearable breast pumping device is a device placed in a bra for breast pumping. The existing wearable breast pumping devices have relatively large sizes due to the integration of power devices (such as batteries, vacuum pumps, solenoid valves, etc.). Moreover, the existing wearable breast pumping devices require the milk bottle to be placed in the bra as well, resulting in poor comfort and imposing a greater burden on the user's breasts. Summary of the Utility Model

[0004] An object of the utility model is to provide a wearable breast pumping device, wherein the part of the wearable breast pumping device that needs to be placed inside the bra has a smaller size. When the wearable breast pumping device is fixed to the breast position through the bra, the negative pressure forming unit of the wearable breast pumping device will not overly stretch the bra outwards. At the same time, the pressure exerted by the bra on the breast through the negative pressure forming unit will also be reduced, thus improving the comfort of the mother when breast pumping through the wearable breast pumping device.

[0005] An object of the utility model is to provide a wearable breast pumping device, wherein the negative pressure forming unit and the milk bottle of the wearable breast pumping device are in an "8" or "B" shape, so that the wearable breast pumping device has a smaller size at the connection position between the negative pressure forming unit and the milk bottle. In this way, when the wearable breast pumping device is fixed to the breast position through the bra, the connection position between the negative pressure forming unit and the milk bottle corresponds to the lower edge of the bra. That is, the negative pressure forming unit is wrapped by the bra, and the milk bottle is suspended outside the bra. Since the wearable breast pumping device has a smaller size at the connection position between the negative pressure forming unit and the milk bottle, on the one hand, the distance between the lower edge of the bra and the lower edge of the breast can be reduced when the lower edge of the bra is supported by the wearable breast pumping device, thereby avoiding greater pressure on other parts of the lower edge of the breast by other parts of the lower edge of the bra. On the other hand, the bra can hold up the negative pressure forming unit upwards to prevent the wearable breast pumping device from slipping or falling.

[0006] One object of the utility model is to provide a wearable breast pumping device, wherein the fitting side of the milk bottle is flatter than the side away from the milk bottle, so that when the wearable breast pumping device is fixed to the breast by a bra, the bra presses the fitting side of the milk bottle toward the lower part of the breast, and the flat fitting side increases the contact area between the milk bottle and the lower part of the breast, thereby avoiding the discomfort caused by the milk bottle contacting the lower part of the breast for a long time.

[0007] According to one aspect of the present invention, the present invention provides a wearable breast pumping device, comprising:

[0008] A feeding bottle, wherein the feeding bottle has a milk holding cavity, a fitting side and a side away from the fitting side, wherein in a cross-sectional position perpendicular to the height direction of the feeding bottle, the curvature of the feeding bottle on the fitting side is smaller than the curvature of the feeding bottle on the away side; and

[0009] a negative pressure forming unit, wherein the negative pressure forming unit has a milk suction chamber with variable space, and a receiving opening and a milk discharge passage respectively connected to the milk suction chamber, wherein the milk bottle is installed on the negative pressure forming unit, the milk receiving chamber of the milk bottle can be connected to the milk discharge passage of the negative pressure forming unit, wherein the negative pressure forming unit and the milk bottle are in an "8" shape or a "B" shape.

[0010] According to one embodiment of the utility model, the negative pressure forming unit includes a supporting shell, a negative pressure forming part and a one-way valve, the supporting shell has a gas exchange channel, the negative pressure forming part is installed on the supporting shell, the negative pressure forming unit forms a negative pressure chamber between the negative pressure forming part and the supporting shell, the negative pressure chamber and the gas exchange channel are connected, the milk suction chamber, the receiving opening and the milk discharge channel of the negative pressure forming unit are all formed in the negative pressure forming part, wherein the one-way valve and the milk bottle are both installed in the negative pressure forming part, and the one-way valve is used to control the communication state of the milk holding chamber of the milk bottle and the milk discharge channel of the negative pressure forming unit.

[0011] According to one embodiment of the utility model, the negative pressure forming unit includes an outer cover shell and an anti-slip portion, the support shell is installed on one side of the outer cover shell, and the anti-slip portion is arranged on a side of the outer cover shell away from the support shell.

[0012] According to an embodiment of the present invention, the anti-slip portion is formed by roughening the outer surface of the outer cover shell on a side facing away from the supporting shell.

[0013] According to an embodiment of the present utility model, the anti-slip portion is silicone, which is installed on a side of the outer housing away from the support housing or integrally formed on a side of the outer housing away from the support housing.

[0014] According to an embodiment of the present utility model, the negative pressure forming unit includes an air duct portion, the air duct portion is disposed between the support housing and the outer housing, and the gas exchange channel of the support housing communicates with the air duct portion.

[0015] According to an embodiment of the present utility model, the support housing includes a housing main body and a horn body integrally extending outward from an end of the housing main body. The housing main body has an installation cavity and an installation opening communicating with the installation cavity. The negative pressure forming portion includes a deformable portion and a skeleton portion. The deformable portion has a combined end and a deformable end corresponding to the combined end. The skeleton portion is combined with the combined end of the deformable portion. The milk sucking cavity and the receiving opening of the negative pressure forming unit are formed in the deformable portion. A part of the milk discharging channel of the negative pressure forming unit is formed in the deformable portion, and another part is formed in the skeleton portion. The skeleton portion of the negative pressure forming portion is installed in the installation opening of the housing main body, and the deformable portion extends into the installation cavity through the installation opening. The negative pressure cavity is formed between the deformable portion and the housing main body. The air duct portion includes a gas guiding seat and a commutation seat. The gas guiding seat has a first air duct extending horizontally, a bottom socket hole and a top socket hole respectively communicating with the first air duct. The top of the housing main body of the support housing has a housing insertion arm, and the opening of the gas exchange channel is formed on the end face of the housing insertion arm. The gas guiding seat is disposed on the top of the housing main body in such a way that the housing insertion arm is inserted into the bottom socket hole. The commutation seat has a bottom insertion arm, a side insertion arm and a second air duct. One opening of the second air duct is formed on the end face of the bottom insertion arm, and the other opening is formed on the end face of the side wall insertion arm. The bottom insertion arm of the commutation seat is inserted into the top socket hole of the gas guiding seat.

[0016] According to an embodiment of the present utility model, the negative pressure forming unit includes a suction cup type breast cup, and the breast cup is assembled to the negative pressure forming portion.

[0017] According to an embodiment of the present utility model, the suction cup type breast cup includes a shoulder ring body, an assembly ring body and a horn cover body. The assembly ring body integrally extends from the inner edge of the shoulder ring body to one side, and the horn cover body integrally extends from the outer edge of the shoulder ring body in the opposite direction. The assembly ring body is assembled to the negative pressure forming portion.

[0018] According to another aspect of the present utility model, the present utility model further provides a breast pump, which includes:

[0019] a main body;

[0020] a trachea; and

[0021] a wearable milk sucking device, wherein the wearable milk sucking device further includes a milk bottle and a negative pressure forming unit. The milk bottle has a milk storage cavity, a fitting side and a side opposite to the fitting side. At the cross-sectional position of the milk bottle perpendicular to the height direction, the curvature of the milk bottle on the fitting side is smaller than the curvature of the milk bottle on the side opposite to the fitting side. The negative pressure forming unit has a milk sucking cavity with variable space, a receiving opening and a milk discharging channel respectively communicating with the milk sucking cavity. The milk bottle is installed on the negative pressure forming unit, and the milk storage cavity of the milk bottle can communicate with the milk discharging channel of the negative pressure forming unit. The negative pressure forming unit and the milk bottle are in an "8" shape or a "B" shape. One end of the trachea is connected to the main body, and the other end is connected to the negative pressure forming unit. Description of the Drawings

[0022] Figure 1 is a perspective three-dimensional schematic view of a wearable milk sucking device according to a preferred embodiment of the present utility model.

[0023] Figure 2 is a perspective three-dimensional schematic view of the wearable milk sucking device according to the above preferred embodiment of the present utility model from another perspective.

[0024] Figure 3 is an exploded schematic view of the wearable milk sucking device according to the above preferred embodiment of the present utility model from one perspective.

[0025] Figure 4 is an exploded schematic view of the wearable milk sucking device according to the above preferred embodiment of the present utility model from another perspective.

[0026] Figure 5 is an exploded schematic view of the wearable milk sucking device according to the above preferred embodiment of the present utility model from another perspective.

[0027] Figure 6 is a cross-sectional schematic view of the wearable milk sucking device according to the above preferred embodiment of the present utility model in one direction.

[0028] Figure 7 is a cross-sectional schematic view of the wearable milk sucking device according to the above preferred embodiment of the present utility model in another direction.

[0029] Figure 8 isFigure 7 Partial enlarged view of the position

[0030] Figure 9 is a three-dimensional schematic diagram of a breast pump according to a preferred embodiment of the present utility model

[0031] Figure 10 and Figure 11 is a schematic diagram of the usage state of the breast pump according to the above preferred embodiment of the present utility model Detailed implementation manners

[0032] Before elaborating on any embodiment of the present utility model in detail, it should be understood that the present utility model is not limited in its application to the details of the construction and arrangement of the components described in the following description or illustrated in the following drawings. The present utility model is capable of having other embodiments and of being practiced or carried out in various ways. Additionally, it should be understood that the terminology and terms used herein are for the purpose of description and should not be regarded as restrictive. As used herein, the terms "comprising", "comprises" or "having" and their variants are intended to cover the listed items and their equivalents as well as additional items. Unless otherwise specified or restricted, the terms "mounted", "connected", "supported" and "coupled" and their variants are used broadly and cover both direct and indirect mounting, connection, support and coupling. Further, "connected" and "coupled" are not limited to physical or mechanical connection or coupling

[0033] And, on the one hand, in the disclosure of the present utility model, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model 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. Therefore, the above terms should not be construed as limiting the present utility model; on the other hand, the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" should not be construed as limiting the quantity

[0034] Refer to the attached drawings in the specification of the present utility model Figures 9 to 11, a breast pump according to a preferred embodiment of the present utility model will be disclosed and described hereinafter, wherein the breast pump includes at least one wearable breast pumping device 100, a main body 200, and at least one air pipe 300. Opposite ends of the air pipe 300 are respectively connected to the wearable breast pumping device 100 and the main body 200. A part of the wearable breast pumping device 100 can be placed inside a bra 400, and the bra 400 fixes the wearable breast pumping device 100 at the position of the breast 500. When the main body 200 operates, the wearable breast pumping device 100 can assist the mother in breast pumping.

[0035] Preferably, in Figures 9 to 11 this specific example of the breast pump of the present utility model shown in the attached drawings, the number of the wearable breast pumping devices 100 is two. The air pipe 300 can be in a "Y" shape. One end of the air pipe 300 is connected to the main body 200, and the other two ends are respectively connected to the two wearable breast pumping devices 100. In this way, the user can breast pump both breasts 500 simultaneously through the breast pump. It can be understood that in some examples of the breast pump of the present utility model, the number of the air pipes 300 can also be two. One end of each air pipe 300 is respectively connected to each wearable breast pumping device 100, and the other end is respectively connected to the main body 200. In some other examples of the breast pump of the present utility model, the number of the wearable breast pumping devices 100 can also be one.

[0036] Next, referring to the attached Figures 1 to 8 drawings, which show the specific structure of the wearable breast pumping device 100. The wearable breast pumping device 100 includes a negative pressure forming unit 10 and a milk bottle 20 installed on the negative pressure forming unit 10. The connection position between the negative pressure forming unit 10 and the milk bottle 20 has a smaller size, so that the negative pressure forming unit 10 and the milk bottle 20 are in an "8" shape or a "B" shape. In this way, when the wearable breast pumping device 100 is fixed to the position of the breast 500 through the bra 400, the negative pressure forming unit 10 is placed inside the bra 400 and wrapped by the bra 400, and the milk bottle 20 is suspended outside the bra 400. The connection position between the negative pressure forming unit 10 and the milk bottle 20 corresponds to the lower edge of the bra 400. Since the connection position between the negative pressure forming unit 10 and the milk bottle 20 has a smaller size, on the one hand, the distance between the lower edge of the bra 400 and the lower edge of the breast 500 when the lower edge of the bra 400 is supported by the wearable breast pumping device 100 can be reduced, thereby avoiding greater pressure on other parts of the lower edge of the breast 500 by other parts of the lower edge of the bra 400. On the other hand, the bra 400 can hold up the negative pressure forming unit 10 upward to prevent the wearable breast pumping device 100 from slipping or falling.

[0037] Meanwhile, since the wearable milk pumping device 100 only needs to place the negative pressure forming unit 10 inside the bra 400, the size of the part of the wearable milk pumping device 100 placed inside the bra 400 is small. When the wearable milk pumping device 100 is fixed to the position of the breast 500 through the bra 400, the negative pressure forming unit 10 will not overly stretch the bra 400 outwards, and the pressure exerted by the bra 400 on the breast 500 through the wearable milk pumping device 100 will also be reduced, thereby improving the comfort of the mother when pumping milk through the wearable milk pumping device 100.

[0038] In the wearable milk pumping device 100 of the present utility model, the milk bottle 20 has a fitting side 201 and a non-fitting side 202 opposite to the fitting side 201. At the cross-sectional position of the milk bottle 20 perpendicular to the height direction, the curvature of the milk bottle 20 on the fitting side 201 is less than the curvature of the milk bottle 20 on the non-fitting side 202, so that the fitting side 201 of the milk bottle 20 is flatter than the non-fitting side 202. Refer to the attached Figure 8 figure. In this way, when the wearable milk pumping device 100 is fixed to the position of the breast 500 through the bra 400, the bra 400 presses the fitting side 201 of the milk bottle 20 towards the position of the lower part of the breast 500. The flat fitting side 201 will increase the contact area between the milk bottle 20 and the lower part of the breast 500, avoiding the discomfort caused by the long-term contact between the milk bottle 20 and the lower part of the breast 500.

[0039] That is to say, in this specific example of the wearable milk pumping device 100 of the present utility model, by designing the negative pressure forming unit 10 and the milk bottle 20 of the wearable milk pumping device 100 to be in a roughly "8" shape or "B" shape and designing the milk bottle 20 such that the curvature of the milk bottle 20 on the fitting side 201 is less than the curvature of the milk bottle 20 on the non-fitting side 202, not only can the bra 400 hold up the negative pressure forming unit 10 upwards without causing greater pressure on other parts of the breast 500, but also the flat fitting side 201 will increase the contact area between the milk bottle 20 and the lower part of the breast 500 to avoid the discomfort caused by the long-term contact between the milk bottle 20 and the lower part of the breast 500.

[0040] The negative pressure forming unit 10 has a milk suction cavity 101 with variable space, a receiving opening 102 and a milk discharging channel 103 respectively communicating with the milk suction cavity 101. The milk bottle 20 has a milk holding cavity 203. After the milk bottle 20 is installed on the negative pressure forming unit 10, the milk holding cavity 203 of the milk bottle 20 can communicate with the milk discharging channel 103 of the negative pressure forming unit 10. When the wearable milk suction device 100 is fixed to the position of the breast 500 through the bra 400, the breast 500 closes the receiving opening 102 of the negative pressure forming unit 10. As the space size of the milk suction cavity 101 of the negative pressure forming unit 10 changes rhythmically, milk is sucked out and can be discharged through the milk discharging channel 103 of the negative pressure forming unit 10 into the milk holding cavity 203 of the milk bottle 20.

[0041] Further, referring to the attached Figures 1 to 8 , the negative pressure forming unit 10 includes a support housing 11, a negative pressure forming part 12 and a one-way valve 13. The support housing 11 has a gas exchange channel 111. The negative pressure forming part 12 is installed on the support housing 11. The negative pressure forming unit 10 forms a negative pressure cavity 104 between the support housing 11 and the negative pressure forming part 12. The negative pressure cavity 104 of the negative pressure forming unit 10 communicates with the gas exchange channel 111 of the support housing 11. The milk suction cavity 101, the receiving opening 102 and the milk discharging channel 103 of the negative pressure forming unit 10 are all formed in the negative pressure forming part 12. The one-way valve 13 is installed in the negative pressure forming part 12 to selectively open or close the milk discharging channel 103 of the negative pressure forming unit 10. The milk bottle 20 is installed on the negative pressure forming part 12. When the one-way valve 13 opens the milk discharging channel 103 of the negative pressure forming unit 10, the milk discharging channel 103 of the negative pressure forming unit 10 is allowed to communicate with the milk holding cavity 203 of the milk bottle 20. Correspondingly, when the one-way valve 13 closes the milk discharging channel 103 of the negative pressure forming unit 10, the milk discharging channel 103 of the negative pressure forming unit 10 is blocked from communicating with the milk holding cavity 203 of the milk bottle 20. That is to say, the one-way valve 13 is used to control the communication state between the milk holding cavity 203 of the milk bottle 20 and the milk discharging channel 103 of the negative pressure forming unit 10. Preferably, the negative pressure forming part 12 is detachably installed on the support housing 11.

[0042] In the present utility model, the gas exchange channel 111 of the support housing 11 can be connected to the main body 200 through the trachea 300. When the mother fixes the wearable milk suction device 100 at the position of the breast 500 through the bra 400, the breast 500 closes the receiving opening 102 of the negative pressure forming unit 10, so as to allow the negative pressure forming portion 12 to cover the nipple. In this way, the breast 500 and the one-way valve 13 can form a closed space for the milk suction cavity 101 of the negative pressure forming unit 10. When the main body 200 is operating, the air in the negative pressure cavity 104 of the negative pressure forming unit 10 can be discharged through the gas exchange channel 111 of the support housing 11 and the trachea 300, so as to reduce the pressure in the negative pressure cavity 104 of the negative pressure forming unit 10. At this time, the one-way valve 13 closes the milk discharge channel 103 of the negative pressure forming unit 10, and the space of the milk suction cavity 101 of the negative pressure forming unit 10 increases, resulting in a decrease in the pressure in the negative pressure cavity 104, so as to suck out the milk. Subsequently, the air in the external environment can enter the negative pressure cavity 104 of the negative pressure forming unit 10 through the trachea 300 and the gas exchange channel 111 of the support housing 11, and the pressure in the negative pressure cavity 104 of the negative pressure forming unit 10 increases. At this time, the one-way valve 13 opens the milk discharge channel 103 of the negative pressure forming unit 10 to discharge milk, and the space of the milk suction cavity 101 of the negative pressure forming unit 10 decreases, resulting in an increase in the pressure in the milk suction cavity 101. By alternately reducing and increasing the pressure in the negative pressure cavity 104 of the negative pressure forming unit 10, the pressure in the milk suction cavity 101 of the negative pressure forming unit 10 can also be alternately increased and decreased, so that the milk suction device can achieve milk suction.

[0043] Continue to refer to the attached Figures 1 to 8 , the negative pressure forming unit 10 further includes an outer cover 14 and an anti-slip portion 15. The support housing 11 is installed on one side of the outer cover 14, and at least a part of the support housing 11 is hidden by the outer cover 14. The anti-slip portion 15 is provided on the other side of the outer cover 14. When the mother fixes the wearable milk suction device 100 at the position of the breast 500 through the bra 400, the anti-slip portion 15 is in direct contact with the bra 400, increasing the friction between the negative pressure forming unit 10 and the bra 400, and preventing the wearable milk suction device 100 from sliding down or falling off.

[0044] In the attached Figures 1 to 8In this specific example of the wearable milk pumping device 100 shown, the anti-slip portion 15 is made of a silicone material, which is installed on the side of the outer housing 14 facing away from the support housing 11, or the anti-slip portion 15 is integrally formed on the side of the outer housing 14 facing away from the support housing 11, so as to dispose the anti-slip portion 15 on the outer housing 14. Preferably, the outer housing 14 has a groove 140, and the depth dimension of the groove 140 is the same as the thickness dimension of the anti-slip portion 15. The anti-slip portion 15 is disposed in the groove 140 of the outer housing 14. In this way, it is possible to prevent the edge of the anti-slip portion 15 from protruding above the outer housing 14, which can not only ensure the aesthetics of the wearable milk pumping device 100, but also prevent the edge of the anti-slip portion 15 from warping outwards during long-term use of the wearable milk pumping device 100. Optionally, in other specific examples of the wearable milk pumping device 100 of the present invention, the anti-slip portion 15 may also be formed by roughening the outer surface of the side of the outer housing 14 facing away from the support housing 11.

[0045] Continue to refer to the attached Figures 1 to 8 As shown, the negative pressure forming unit 10 includes an air duct portion 16, the air duct portion 16 is disposed between the support housing 11 and the outer housing 14, the gas exchange channel 111 of the support housing 11 communicates with the air duct portion 16, and one end of the trachea 300 is connected to the air duct portion 16. In this way, the trachea 300 can communicate with the negative pressure chamber 104 of the negative pressure forming unit 10 through the air duct portion 16 and the gas exchange channel 111 of the support housing 11.

[0046] Specifically, the support housing 11 includes a housing body 112 and a horn body 113 integrally extending outward from one end of the housing body 112. The housing body 112 has an installation cavity 1121 and an installation opening 1122 communicating with the installation cavity 1121. The top of the housing body 112 of the support housing 11 has a housing insertion arm 1123. The opening of the gas exchange channel 111 is formed on the end face of the housing insertion arm 1123. Wherein the negative pressure forming part 12 includes a deformation part 121 and a skeleton part 122. The deformation part 121 has a joint end 1211 and a deformation end 1212 corresponding to the joint end 1211. The skeleton part 122 is joined to the joint end 1211 of the deformation part 121. The milk suction cavity 101 and the receiving opening 102 of the negative pressure forming unit 10 are both formed in the deformation part 121. A part of the milk discharging channel 103 of the negative pressure forming unit 10 is formed in the deformation part 121, and another part is formed in the skeleton part 122. Wherein the skeleton part 122 of the negative pressure forming part 12 is installed in the installation opening 1122 of the housing body 112. The deformation part 121 extends through the installation opening 1122 of the housing body 112 into the installation cavity 1121. The negative pressure cavity 104 of the negative pressure forming unit 10 is formed between the deformation part 121 and the housing body 112.

[0047] When the main machine 200 is working, the air in the negative pressure cavity 104 of the negative pressure forming unit 10 is discharged through the gas exchange channel 111 of the support housing 11, the airway part 16 and the trachea 300 to reduce the pressure in the negative pressure cavity 104 of the negative pressure forming unit 10. At this time, the one-way valve 13 closes the milk discharging channel 103 of the negative pressure forming unit 10. The deformation end 1212 of the deformation part 121 of the negative pressure forming part 12 deforms towards the end of the housing body 112 away from the horn body 113 to increase the space of the milk suction cavity 101 of the negative pressure forming unit 10, resulting in a decrease in the pressure in the milk suction cavity 101 to suck milk from the breast 500. As the air in the external environment enters the negative pressure cavity 104 of the negative pressure forming unit 10 through the trachea 300, the airway part 16 and the gas exchange channel 111 of the support housing 11, the pressure in the negative pressure cavity 104 of the negative pressure forming unit 10 increases. At this time, the one-way valve 13 opens the milk discharging channel 103 of the negative pressure forming unit 10 to discharge milk to the milk bottle 20. The deformation end 1212 of the deformation part 121 of the negative pressure forming part 12 deforms away from the end of the housing body 112 away from the horn body 113 to reduce the space of the milk suction cavity 101 of the negative pressure forming unit 10, resulting in an increase in the pressure in the milk suction cavity 101.

[0048] Reference appendix Figure 6 Figure 6 , the bottom of the skeleton part 122 of the negative pressure forming part 12 has an internal mounting arm 1221, and the one-way valve 13 is mounted on the internal mounting arm 1221 to mount the one-way valve 13 on the negative pressure forming part 12. Preferably, the one-way valve 13 is a duckbill valve. As the pressure in the milk sucking cavity 101 of the negative pressure forming unit 10 changes, the one-way valve 13 can open and close to control the communication state between the milk holding cavity 203 of the milk bottle 20 and the milk discharging channel 103 of the negative pressure forming unit 10 by the one-way valve 13. Preferably, the one-way valve 13 is detachably mounted on the internal mounting arm 1221 of the skeleton part 122 of the negative pressure forming part 12.

[0049] Reference appendix Figures 3 to 8 Figures 3 to 8 , the air passage part 16 includes a gas guiding seat 161 and a reversing seat 162. The gas guiding seat 161 has a first air passage 1611 extending horizontally, a bottom socket 1612 and a top socket 1613 respectively communicating with the first air passage 1611. The gas guiding seat 161 is arranged on the top of the shell body 112 in such a way that the shell inserting arm 1123 of the shell body 112 is inserted into the bottom socket 1612. The reversing seat 162 has a bottom inserting arm 1621, a side inserting arm 1622 and a second air passage 1623. One opening of the second air passage 1623 is formed on the end face of the bottom inserting arm 1621, and the other opening is formed on the end face of the side inserting arm 1622. The bottom inserting arm 1621 of the reversing seat 162 is inserted into the top socket 1613 of the gas guiding seat 161 so that the negative pressure cavity 104 of the negative pressure forming unit 10, the gas exchange passage 111 of the support shell 11, the first air passage 1611 of the gas guiding seat 161 and the second air passage 1623 of the reversing seat 162 are communicated in sequence.

[0050] In the specific example of the wearable milk sucking device 100 shown in the appendix Figures 1 to 8 Figures 1 to 8 , by arranging the gas guiding seat 161 and the reversing seat 162 on the top of the shell body 112 of the support shell 11, the part of the wearable milk sucking device 100 for connecting the trachea 300 (i.e., the side inserting arm 1622 of the reversing seat 162) can be arranged in a reasonable position, avoiding this part occupying a large space. In other words, the arrangement of the gas guiding seat 161 and the reversing seat 162 of the air passage part 16 can realize the miniaturization of the wearable milk sucking device 100.

[0051] In the appendix Figures 1 to 8In this specific example of the wearable breast pump 100 shown, the bottom insertion arm 1621 of the reversing base 162 is detachably inserted into the top jack 1613 of the air guide base 161. In this way, the mother can choose the orientation of the side insertion arm 1622 of the reversing base 162 according to her needs. For example, the mother can, according to her needs, allow the bottom insertion arm 1621 of the reversing base 162 to be inserted into the top jack 1613 of the air guide base 161 with the side insertion arm 1622 of the reversing base 162 facing left, or she can also, according to her needs, allow the bottom insertion arm 1621 of the reversing base 162 to be inserted into the top jack 1613 of the air guide base 161 with the side insertion arm 1622 of the reversing base 162 facing right. In this way, the mother does not need to distinguish between the two wearable breast pumps 100 during the assembly process of the breast pump.

[0052] In the attachment Figures 1 to 8 In this specific example of the wearable breast pump 100 shown, the outer housing 14 has a positioning hole 141. The outer housing 14 is fixedly installed on the outer edge of the horn body 113 of the support housing 11 to form a receiving cavity 105 of the negative pressure forming unit 10 between the support housing 11 and the outer housing 14. The positioning hole 141 of the outer housing 14 communicates with the receiving cavity 105 of the negative pressure forming unit 10. The air guide base 161 has a top boss 1614. The opening of the top jack 1613 is formed on the end face of the top boss 1614. The air guide base 161 is received in the receiving cavity 105 of the negative pressure forming unit 10, and the top boss 1614 of the air guide base 161 extends into the positioning hole 141 of the outer housing 14. It can be understood that since the housing insertion arm 1123 of the housing main body 112 of the support housing 11 is inserted into the bottom jack 1612 of the air guide base 161 and the top boss 1614 of the air guide base 161 extends into the positioning hole 141 of the outer housing 14, the air guide base 161 is stably received in the receiving cavity 105 of the negative pressure forming unit 10. Whether the bottom insertion arm 1621 of the reversing base 162 is inserted into the top jack 1613 of the air guide base 161 or the bottom insertion arm 1621 of the reversing base 162 is pulled out from the top jack 1613 of the air guide base 161, the air guide base 161 will not shift.

[0053] Further, the top of the shell body 112 of the support shell 11 has a positioning wall 1124. The positioning wall 1124 surrounds the bottom of the air guide seat 161, and the inner wall of the positioning wall 1124 fits against the outer wall of the air guide seat 161. In this way, on the one hand, before assembling the outer cover 14 onto the support shell 11, the positioning wall 1124 of the shell body 112 can pre-position the air guide seat 161, so that during the process of assembling the outer cover 14 onto the support shell, the positioning wall 1124 of the shell body 112 can prevent the air guide seat 161 from being misaligned, improving the assembly efficiency. On the other hand, when inserting the bottom insertion arm 1621 of the commutation seat 162 into the top insertion hole 1613 of the air guide seat 161 or pulling out the bottom insertion arm 1621 of the commutation seat 162 from the top insertion hole 1613 of the air guide seat 161, the positioning wall 1124 of the shell body 112 can prevent the air guide seat 161 from shifting.

[0054] The outer cover 14 includes a housing body 142 and a retaining cover 143. The positioning hole 141 is formed in the retaining cover 143. The housing body 142 has a housing channel 1421. The housing body 142 is fixedly installed on the outer edge of the horn body 113 of the support shell 11. The position of the top boss 1614 of the air guide seat 161 corresponds to the position of the housing channel 1421 of the housing body 142. The retaining cover 143 is fixedly installed in the housing channel 1421 of the housing body 142 in such a way that the top boss 1614 of the air guide seat 161 is inserted into the positioning hole 141 of the outer cover 14. In this way, the support shell 11, the air guide seat 161, and the outer cover 14 can be conveniently installed and the air guide seat 161 can be prevented from being misaligned.

[0055] In the appendix Figures 1 to 8In this example of the wearable milk pumping device 100 shown, the bottom of the shell body 112 of the support shell 11 has an installation notch 1125. The bottom of the skeleton part 122 of the negative pressure forming part 12 has an external installation arm 1222. The external installation arm 1222 surrounds the internal installation arm 1221, and the external installation arm 1222 can be held in the installation notch 1125 of the shell body 112. The milk bottle 20 is installed on the external installation arm 1222 of the skeleton part 122. In this way, on the one hand, the sucked milk can be collected into the milk bottle 20. On the other hand, the skeleton part 122 is held above the part of the shell body 112 for forming the installation notch 1125, and the milk bottle 20 is held below. In this way, the skeleton part 122 and the milk bottle 20 clamp this part on the opposite sides of the part of the shell body 112 for forming the installation notch 1125, so as to further ensure that the negative pressure forming part 12 is reliably and stably installed on the support shell 11.

[0056] The external installation arm 1222 of the skeleton part 122 of the negative pressure forming part 12 has at least one clamping groove 12221 extending in the circumferential direction and at least one guiding groove 12222 extending in the height direction and communicating with one end of the clamping groove 12221. At least one clamping protrusion 21 is provided at the bottle mouth of the milk bottle 20. The clamping protrusion 21 of the milk bottle 20 can slide into the clamping groove 12221 through the guiding groove 12222 of the external installation arm 1222 of the skeleton part 122 to install the milk bottle 20 on the external installation arm 1222 of the skeleton part 122.

[0057] Continue to refer to the attached Figures 1 to 8 In this specific example of the wearable milk pumping device 100 of the present utility model, the negative pressure forming unit 10 includes a suction cup type breast cup 17. The suction cup type breast cup 17 is assembled on the negative pressure forming part 12. The suction cup type breast cup 17 can adsorb on the breast 500 to prevent the wearable milk pumping device 100 from automatically sliding down or falling off. And the suction cup type breast cup 17 isolates the negative pressure forming part 12 and the breast 500, which is not only beneficial to improving the comfort of the wearable milk pumping device 100, but also beneficial to ensuring the hygiene of the wearable milk pumping device 100.

[0058] Further, the suction cup type breast cup 17 includes a shoulder ring body 171, a fitting ring body 172, and a horn-shaped cover body 173. The fitting ring body 172 extends integrally from the inner edge of the shoulder ring body 171 to one side, and the horn-shaped cover body 173 extends integrally from the outer edge of the shoulder ring body 171 in the opposite direction. That is to say, the suction cup type breast cup 17 is an integral body. For example, in some embodiments, the suction cup type breast cup 17 can be injection molded from a silicone material. In this way, the suction cup type breast cup 17 is flexible and is an integral body. Thus, the suction cup type breast cup 17 can directly suspend the wearable breast milk pumping device 100 on the breast 500 in a manner of adsorbing the breast 500.

[0059] The assembly ring body 172 of the suction cup type breast cup 17 is assembled in the mounting opening 1121 of the housing main body 112. When the mother adsorbs the wearable breast milk pumping device 100 on the breast 500 through the suction cup type breast cup 17, the horn cover body 173 of the suction cup type breast cup 17 is directly attached to the breast 500, and the opening of the horn cover body 173 is closed by the breast 500. Thus: on the one hand, the horn cover body 173 and the negative pressure forming unit 10 are at a relatively far distance. When the mother needs to adsorb the wearable breast milk pumping device 100 on the breast 500 through the suction cup type breast cup 17, the horn cover body 173 can be turned outwards first. After the nipple is aligned with the milk pumping cavity 101 of the negative pressure forming unit 10, the horn cover body 173 is restored, so that the horn cover body 173 is closely attached to the breast 500. In this way, the breast 500 can close the opening of the horn cover body 173 to close the receiving opening 102 of the negative pressure forming unit 10, thereby allowing the suction cup type breast cup 17 to adsorb on the breast 500 and the wearable breast milk pumping device 100 to be directly hung on the breast 500 by the suction cup type breast cup 17. And during the breast milk pumping process, a negative pressure environment is formed in the milk pumping cavity 101 of the negative pressure forming unit 10 and the internal space of the suction cup type breast cup 17, so that the wearable breast milk pumping device 100 can be reliably hung on the breast 500. That is, when the breast milk pump does not start working, the suction cup type breast cup 17 can directly hang the wearable breast milk pumping device 100 on the breast 500. When the breast milk pump works, since a negative pressure environment is formed in the milk pumping cavity 101 of the negative pressure forming unit 10 and the internal space of the suction cup type breast cup 17, the suction cup type breast cup 17 can hang the wearable breast milk pumping device 100 on the breast 500 more reliably; on the other hand, after the mother directly hangs the wearable breast milk pumping device 100 on the breast 500 through the suction cup type breast cup 17, the suction cup type breast cup 17 isolates the negative pressure forming unit 10 and the breast 500, avoiding the negative pressure forming unit 10 directly contacting the breast 500. The flexible suction cup type breast cup 17 can improve the comfort of the mother when using the breast milk pump; on the other hand, when the assembly ring body 172 of the suction cup type breast cup 17 changes with the position change of the negative pressure forming unit 10, the shoulder ring body 171 of the suction cup type breast cup 17 can be deformed to prevent the horn cover body 173 from changing with the position change of the negative pressure forming unit 10. In this way, during the breast milk pumping process, the suction cup type breast cup 17 can always reliably adsorb on the mother's breast 500, avoiding the wearable breast milk pumping device 100 falling off the breast 500 and milk leakage.

[0060] In the appendix Figures 1 to 8In an example of the wearable breast milk pumping device 100 shown, the assembly ring body 172 of the suction cup breast shield 17 is detachably assembled to the negative pressure forming part 12, which enables the suction cup breast shield 17 to be conveniently cleaned, thereby improving the hygiene of the breast pump. At the same time, the mother can select a suitable suction cup breast shield 17 according to her own needs to meet personalized requirements. For example, suction cup breast shields 17 of different materials, different sizes, and different shapes can all be selected and assembled to the same negative pressure forming part 12.

[0061] In the attached Figures 1 to 8 In this specific example of the wearable breast milk pumping device 100 shown, the outer diameter dimension of the assembly ring body 172 of the suction cup breast shield 17 is the same as the inner diameter dimension of the negative pressure forming part 12. Thus, based on the frictional force generated between the outer wall of the assembly ring body 172 and the inner wall of the negative pressure forming part 12, the assembly ring body 172 of the suction cup breast shield 17 can be reliably assembled to the negative pressure forming part 12.

[0062] Refer to the attached Figure 6 , the assembly ring body 172 of the suction cup breast shield 17 extends through the installation opening 1121 of the housing main body 112 to the outside of the installation cavity 1122 of the housing 112 to form a step. In this way, the milk sucked out can be blocked by the assembly ring body 172, preventing the milk from flowing to the position of the bell-shaped cover body 173, and further avoiding the leakage of milk from the fitting position between the bell-shaped cover body 173 and the breast 500. In this way, not only can the breast milk pumping process be made more comfortable, but also the suction cup breast shield 17 can be prevented from falling off the breast 500, ensuring that the wearable breast milk pumping device 100 is reliably hung on the breast 500. In other words, by allowing the assembly ring body 172 of the suction cup breast shield 17 to extend through the installation opening 1121 of the housing main body 112 to the outside of the installation cavity 1122 of the housing main body 112, the milk sucked out is only allowed to be discharged through the milk discharge channel 103 of the negative pressure forming unit 10.

[0063] Refer to the attached Figure 6, the suction cup type breast cup 17 further includes a limiting portion 174. The limiting portion 174 extends integrally from the peripheral wall of the assembly ring body 172 in a direction substantially perpendicular to the extending direction of the assembly ring body 172. And there is a gap between the limiting portion 174 and the shoulder ring body 171. In this way, when the assembly ring body 172 of the suction cup type breast cup 17 is assembled to the mounting opening 1121 of the housing main body 112, the limiting portion 174 limits the assembly depth of the assembly ring body 172 by abutting against the negative pressure forming portion 12. Thus: on the one hand, the limiting portion 174 can ensure that there is a spacing between the shoulder ring body 171 and the negative pressure forming portion 12, so that when the assembly ring body 172 changes with the change of the position of the negative pressure forming unit 10, the shoulder ring body 171 can be deformed. On the other hand, the limiting portion 174 can ensure that the assembly ring body 172 extends through the assembly opening 122 of the negative pressure forming portion 12 to the outside of the milk discharging channel 123 of the negative pressure forming portion 12 to form the step, avoiding the assembly ring body 172 covering the milk discharging channel 103 of the negative pressure forming unit 10 to ensure smooth milk discharging.

[0064] In the specific example of the wearable milk sucking device 100 shown in the appendix Figures 1 to 8 , in this specific example of the wearable milk sucking device 100 shown, the limiting portion 174 of the suction cup type breast cup 17 is annular, and the distance between the outer side of the limiting portion 174 and the central axis of the suction cup type breast cup 17 is greater than the distance between the outer side of the shoulder ring body 171 and the central axis of the suction cup type breast cup 17. Thus, from the top view perspective (the angle perpendicular to the central axis of the suction cup type breast cup 17) of the suction cup type breast cup 17, the limiting portion 174 covers the shoulder ring body 171, making the shoulder ring body 171 visually invisible.

[0065] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been completely and effectively achieved. The function and structural principle of the present invention have been shown and described in the embodiments. Without departing from the principle, the embodiments of the present invention can have any deformation or modification.

Claims

1. A wearable milk pumping device, characterized in that, include: a milk bottle; and A negative pressure forming unit, wherein the milk bottle is installed on the negative pressure forming unit, wherein the negative pressure forming unit is provided with an anti-slip portion on a side away from the receiving opening.

2. The wearable breast pumping device according to claim 1, wherein the negative pressure forming unit comprises a supporting shell, a negative pressure forming part, a one-way valve and an outer shell, and the negative pressure forming unit has a milk suction chamber with a variable space and a milk discharge passage communicating with the milk suction chamber, the negative pressure forming part is mounted on the supporting shell, the negative pressure forming unit forms a negative pressure chamber between the negative pressure forming part and the supporting shell, the supporting shell has a gas exchange passage, the gas exchange passage is communicated with the negative pressure chamber, the milk suction chamber, the receiving opening and the milk discharge passage of the negative pressure forming unit are all formed in the negative pressure forming part, wherein the one-way valve and the milk bottle are both mounted on the negative pressure forming part, and the one-way valve is used to control the communication state between the milk receiving chamber of the milk bottle and the milk discharge passage of the negative pressure forming unit, wherein the supporting shell is mounted on one side of the outer shell, and the anti-slip part is arranged on the side of the outer shell away from the supporting shell.

3. The wearable breast pump device according to claim 2, wherein the anti-slip portion is formed by roughening the outer surface of the outer cover shell on a side facing away from the supporting shell.

4. The wearable breast pump device according to claim 2, wherein the anti-slip portion is silicone, which is installed on a side of the outer cover shell facing away from the supporting shell or is integrally formed on a side of the outer cover shell facing away from the supporting shell.

5. The wearable breast pump device according to claim 4, wherein the outer shell has an embedding groove, the depth of the embedding groove is consistent with the thickness of the anti-slip portion, and the anti-slip portion is arranged in the embedding groove of the outer shell.

6. The wearable breast pumping device according to claim 1, wherein the negative pressure forming unit and the feeding bottle are in an "8" shape or a "B" shape.

7. The wearable breast pump device according to any one of claims 2 to 5, wherein the negative pressure generating unit comprises a suction cup type breast shield, and the breast shield is assembled to the negative pressure generating portion.

8. The wearable breast pump device according to claim 7, wherein the suction cup bra comprises a shoulder ring body, a mounting ring body and a horn cover body, wherein 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, wherein the mounting ring body is assembled to the negative pressure forming portion.

9. The wearable breast pump device according to claim 8, wherein the assembly ring of the suction cup bra extends through the installation opening of the shell body of the support shell to the outside of the installation cavity of the shell body to form a step.

10. The wearable milk sucking device according to claim 9, wherein the sucker-type breast cup further comprises a limiting portion, the limiting portion extends integrally from the peripheral wall of the assembly ring body in a direction substantially perpendicular to the extending direction of the assembly ring body, and there is a gap between the limiting portion and the shoulder ring body.

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