Wearable breast pump device and breast pump

Abstract

The wearable breast pumping device comprises a breast pumping cover and a device body, the breast pumping cover is provided with a flow guide groove, the flow guide groove extends from the middle section of the breast pumping cover to the tail end of the breast pumping cover, the device body is provided with a breast pumping cavity, a milk discharging channel, a milk storage cavity and a negative pressure cavity, and the negative pressure cavity is communicated with the flow guide groove. The milk discharging channel is communicated with the milk sucking cavity and the milk storage cavity, the milk sucking cavity and the negative pressure cavity are mutually independent, the negative pressure state of the milk sucking cavity and the negative pressure state of the negative pressure cavity are in positive correlation, the milk sucking cover is installed on the device body, and the milk discharging channel is communicated with the milk sucking cavity and the milk storage cavity. The tail end of the flow guide groove of the breast sucking cover is adjacent to the milk discharging channel of the device body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of maternal and child products, in particular to a wearable breast pump and breast pump. BACKGROUND

[0002] Wearable breast pump is a breast pump that allows users to use in underwear, which becomes increasingly popular because it can free hands. For example, a wearable breast pump is disclosed in the Chinese utility model patent with the authorization announcement number CN219049750U, which comprises a breast pump main body and a negative pressure generating assembly, the breast pump main body is provided with a silica gel horn cover and a milk storage cavity, the milk inlet hole of the silica gel horn cover, a deformation air bag is arranged in front of the milk inlet hole, the deformation air bag is communicated with the air pump in the negative pressure generating assembly, the milk inlet hole of the silica gel horn cover is communicated with the milk inlet hole, a one-way valve is arranged at the milk inlet hole of the silica gel horn cover, the deformation air bag has a concave part corresponding to the milk inlet hole, and the deformation air bag is communicated with the one-way valve. In the wearable breast pump, the breast pump main body provides a horizontal hole, and the milk inlet hole of the silica gel horn cover is also a horizontal hole, when the user uses the wearable breast pump, the flow direction of the milk water sucked out lacks effective guidance, which leads to the problem that the milk water easily flows randomly in the horizontal hole and appears backflow. Especially when the user sucks milk while leaning on the backrest of the sofa or bed, the posture of the user causes the silica gel horn cover to present a low head state, at this time, the milk water sucked out also easily appears backflow. SUMMARY

[0003] One purpose of the utility model is to provide a wearable breast pump and breast pump, wherein the milk suction cover of the wearable breast pump provides a flow guide groove, which extends from the middle section to the end of the milk suction cover, for guiding the milk water sucked out to the milk discharge channel of the device body of the wearable breast pump, avoiding the milk water sucked out from flowing randomly in the milk suction cavity of the device body.

[0004] One purpose of the utility model is to provide a wearable breast pump and breast pump, wherein the flow guide groove of the milk suction cover extends obliquely, so that the wearable breast pump allows the user to use in a lying position, realizing "leaning and sucking".

[0005] One purpose of the utility model is to provide a wearable breast pump and breast pump, wherein the flow guide groove of the milk suction cover increases the space for temporarily storing milk water, for the user with a large amount of milk, the backflow problem caused by the liquid level of the temporarily stored milk water being too high during the breast pumping process can be avoided.

[0006] According to one aspect of the utility model, the utility model provides a wearable breast pump, which comprises:

[0007] A breast cup, wherein the breast cup has a guide groove, the guide groove is obliquely extended from a middle section of the breast cup to a terminal end; and

[0008] A device body, wherein the device body has a breast pumping cavity, a milk discharging channel, a milk storage cavity and a negative pressure cavity, the milk discharging channel is communicated between the breast pumping cavity and the milk storage cavity, the breast pumping cavity and the negative pressure cavity are independent of each other, and a negative pressure state of the breast pumping cavity and a negative pressure state of the negative pressure cavity are positively correlated, wherein the breast cup is installed on the device body, and the terminal end of the guide groove of the breast cup is adjacent to the milk discharging channel of the device body.

[0009] According to an embodiment of the present application, the breast cup has a positioning boss, the device body has a positioning groove, and the breast cup is installed on the device body by inserting the positioning boss into the positioning groove.

[0010] According to an embodiment of the present application, the breast cup has a positioning groove, the device body has a positioning boss, and the breast cup is installed on the device body by inserting the positioning boss into the positioning groove.

[0011] According to an embodiment of the present application, the position of the guide groove of the breast cup is adjacent to the position of the positioning boss.

[0012] According to an embodiment of the present application, the device body comprises an assembly part, a shell cover, a duckbill valve and a suction bowl, the breast pumping cavity and the milk discharging channel of the device body are formed in the assembly part, the shell cover is installed on the assembly part, the milk storage cavity of the device body is formed between the assembly part and the shell cover, the duckbill valve is installed on the assembly part to selectively open and close the milk discharging channel of the device body, and the suction bowl is installed on the assembly part, and the suction bowl is used to form the negative pressure cavity of the device body.

[0013] According to an embodiment of the present application, the edge of the suction bowl is clamped between the assembly part and the shell cover, and the negative pressure cavity of the device body is formed between the suction bowl and the shell cover.

[0014] According to an embodiment of the present application, the assembly part has a receiving groove and a part channel, the part channel is communicated between the receiving groove and the breast pumping cavity, the suction bowl is received in the receiving groove of the assembly part, and the edge of the suction bowl is abutted on the groove edge of the receiving groove of the assembly part, the shell cover has a shell cover channel, and the shell cover channel of the shell cover is communicated with the bowl cavity of the suction bowl.

[0015] According to one embodiment of the present application, the rim of the suction cup surrounds the groove of the receiving groove of the assembly component.

[0016] According to another aspect of the present application, the present application further provides a wearable breast pump device, which comprises:

[0017] a breast cup, wherein the breast cup has a flow guide groove which is obliquely extended from a middle section to a terminal end of the breast cup; and

[0018] a device body, wherein the device body has a breast pumping cavity, a milk discharging channel, a milk storage cavity and a negative pressure cavity, the milk discharging channel is communicated with the breast pumping cavity and the milk storage cavity, the breast pumping cavity and the negative pressure cavity are independent of each other, and the negative pressure state of the breast pumping cavity and the negative pressure state of the negative pressure cavity are positively correlated, wherein the breast cup is installed on the device body, and the terminal end of the flow guide groove of the breast cup is extended to the milk discharging channel of the device body.

[0019] According to another aspect of the present application, the present application further provides a breast pump, which comprises a main machine and a wearable breast pump device, wherein the wearable breast pump device comprises:

[0020] a breast cup, wherein the breast cup has a flow guide groove which is obliquely extended from a middle section to a terminal end of the breast cup; and

[0021] a device body, wherein the device body has a breast pumping cavity, a milk discharging channel, a milk storage cavity and a negative pressure cavity, the milk discharging channel is communicated with the breast pumping cavity and the milk storage cavity, the breast pumping cavity and the negative pressure cavity are independent of each other, and the negative pressure state of the breast pumping cavity and the negative pressure state of the negative pressure cavity are positively correlated, wherein the breast cup is installed on the device body, and the terminal end of the flow guide groove of the breast cup is extended to the milk discharging channel of the device body.

[0022] According to another aspect of the present application, the present application further provides a wearable breast pump device, which comprises a device body, wherein the device body has a breast pumping cavity, a milk discharging channel, a milk storage cavity, a negative pressure cavity and a flow guide groove, the flow guide groove is formed by a recessed mode of an inner wall of the device body for forming the breast pumping cavity, the breast pumping cavity, the flow guide groove, the milk discharging channel and the milk storage cavity are communicated in sequence, the breast pumping cavity and the negative pressure cavity are independent of each other, and the negative pressure state of the breast pumping cavity and the negative pressure state of the negative pressure cavity are positively correlated.

[0023] According to one embodiment of the present application, the wearable breast pump device comprises a breast cup, wherein a tail end of the breast cup is mounted to the device body, and the tail end of the breast cup extends to an outside of the flow guide groove of the device body.

[0024] According to one embodiment of the present application, the device body comprises an assembly component, a shell cover, a duckbill valve and a suction bowl, wherein the suction bowl is arranged at a tail end of the assembly component, the breast pumping cavity of the device body is formed between the assembly component and the suction bowl, the milk discharge channel and the flow guide groove of the device body are formed in the assembly component, the shell cover is mounted to the assembly component and abuts against the suction bowl, the milk storage cavity of the device body is formed between the assembly component and the shell cover, the negative pressure cavity of the device body is formed between the shell cover and the suction bowl, and the duckbill valve is mounted to the assembly component for selectively opening and closing the milk discharge channel of the device body.

[0025] According to one embodiment of the present application, an edge of the suction bowl is clamped between the assembly component and the shell cover.

[0026] According to one embodiment of the present application, the assembly component has a receiving groove, the suction bowl has a receiving slot, the shell cover has an abutting arm, the abutting arm of the shell cover is inserted into the receiving slot of the suction bowl, and the suction bowl is accommodated in the receiving groove of the assembly component, so that the abutting arm of the shell cover and an inner wall of the assembly component for forming the receiving groove clamp an edge of the suction bowl.

[0027] According to one embodiment of the present application, the suction bowl is formed at a tail end of the assembly component.

[0028] According to another aspect of the present application, the present application further provides a breast pump, which comprises a host and a wearable breast pump device, wherein the wearable breast pump device comprises:

[0029] a breast cup, wherein the breast cup has a flow guide groove which is obliquely extended from a middle section to a tail end of the breast cup; and

[0030] a device body, wherein the device body has a breast pumping cavity, a milk discharge channel, a milk storage cavity and a negative pressure cavity, the milk discharge channel communicates the breast pumping cavity and the milk storage cavity, the breast pumping cavity and the negative pressure cavity are independent of each other, and a negative pressure state of the breast pumping cavity and a negative pressure state of the negative pressure cavity are positively correlated, wherein the breast cup is mounted to the device body, a tail end of the flow guide groove of the breast cup extends to the milk discharge channel of the device body, and the device body is connected to the host, and a negative pressure state of the negative pressure cavity of the device body is controlled by the host. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a perspective view of a breast pump according to a preferred embodiment of the present utility model.

[0032] Figure 2 is a perspective view of a wearable breast pump device of the breast pump according to the preferred embodiment of the present utility model.

[0033] Figure 3 is an exploded view of the wearable breast pump device of the breast pump according to the preferred embodiment of the present utility model.

[0034] Figure 4 is another exploded view of the wearable breast pump device of the breast pump according to the preferred embodiment of the present utility model.

[0035] Figure 5 is another exploded view of the wearable breast pump device of the breast pump according to the preferred embodiment of the present utility model.

[0036] Figure 6 is a cross-sectional view of the wearable breast pump device of the breast pump according to the preferred embodiment of the present utility model.

[0037] Figure 7 is a cross-sectional view of the wearable breast pump device of the breast pump according to the preferred embodiment of the present utility model.

[0038] Figure 8 is an exploded view of another wearable breast pump device of the breast pump according to the preferred embodiment of the present utility model.

[0039] Figure 9 is another exploded view of the wearable breast pump device of the breast pump according to the preferred embodiment of the present utility model.

[0040] Figure 10 is a cross-sectional view of the wearable breast pump device of the breast pump according to the preferred embodiment of the present utility model. DETAILED DESCRIPTION

[0041] Before any embodiments of the present disclosure are described in detail, it is to be understood that the present disclosure is not limited in any way to the details of construction and arrangement of parts set forth in the following description or illustrated in the following drawings. The present disclosure is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

[0042] Also, in the disclosure of the present disclosure, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as limiting the present disclosure; secondly, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, the term "one" cannot be understood as limiting the number.

[0043] Reference is made to the accompanying drawings that form a part of this description Figures 1 to 7 A breast pump according to a preferred embodiment of the present disclosure will be disclosed and described in the following description, wherein the breast pump comprises a main machine 10 and at least one wearable breast pumping device 20 connected to the main machine 10, the wearable breast pumping device 20 is allowed to be placed in underwear and cover at least a part of the breast, when the main machine 10 works, the wearable breast pumping device 20 is used to pump out and store milk.

[0044] Preferably, the breast pump further comprises a gas pipe 30, one end of the gas pipe 30 is connected to the main machine 10, and the other end is connected to the wearable breast pumping device 20, so that the wearable breast pumping device 20 is connected to the main machine 10 through the gas pipe 30.

[0045] Specifically, reference is made to the accompanying drawings Figures 2 to 7The wearable breast pump device 20 comprises a device body 21 and a breast pump cover 22, the breast pump cover 22 is installed on the device body 21, and the device body 21 and the breast pump cover 22 cooperate with each other to help the user to pump milk in cooperation with the host 10. Preferably, the breast pump cover 22 is detachably installed on the device body 21, so that on the one hand, the device body 21 and the breast pump cover 22 can be cleaned separately after being detached, and on the other hand, the user can select the breast pump cover 22 with different materials, different sizes and different shapes according to needs to facilitate meeting the personalized needs of the user.

[0046] More specifically, the device body 21 has a milk pumping cavity 2101, a milk discharging channel 2102, a milk storage cavity 2103, and a negative pressure cavity 2104, the milk discharging channel 2102 communicates the milk pumping cavity 2101 and the milk storage cavity 2103, the milk pumping cavity 2101 and the negative pressure cavity 2104 are independent of each other, and the negative pressure state of the milk pumping cavity 2101 and the negative pressure state of the negative pressure cavity 2104 are positively correlated, that is, the negative pressure of the milk pumping cavity 2101 increases with the increase of the negative pressure of the negative pressure cavity 2104, and the negative pressure of the milk pumping cavity 2101 decreases with the decrease of the negative pressure of the negative pressure cavity 2104, so that the negative pressure state of the milk pumping cavity 2101 and the negative pressure state of the negative pressure cavity 2104 are positively correlated. In other words, when the negative pressure of the negative pressure cavity 2104 of the device body 21 increases, the negative pressure of the milk pumping cavity 2101 of the device body 21 increases accordingly, and when the negative pressure of the negative pressure cavity 2104 of the device body 21 decreases, the negative pressure of the milk pumping cavity 2101 of the device body 21 decreases accordingly.

[0047] The breast pump cover 22 has a flow guide groove 2201, which extends obliquely from the middle segment to the end of the breast pump cover 22, and when the breast pump cover 22 is installed on the device body 21, the end of the flow guide groove 2201 of the breast pump cover 22 is adjacent to the milk discharging channel 2102 of the device body 21. Alternatively, in other examples of the breast pump of the present application, when the breast pump cover 22 is installed on the device body 21, the end of the flow guide groove 2201 of the breast pump cover 22 can also directly extend to the milk discharging channel 2102 of the device body 21, that is, the flow guide groove 2201 of the breast pump cover 22 and the milk discharging channel 2102 of the device body 21 are communicated.

[0048] When the user needs to use the breast pump to suck milk and place the wearable breast pumping device 20 in the underwear, the breast pumping cover 22 covers part of the breast, for example, the breast pumping cover 22 can only cover the areola, or can further cover the root of the breast, and when the main machine 10 works, the negative pressure in the negative pressure cavity 2104 of the device body 21 can be changed rhythmically, so that the negative pressure in the breast pumping cavity 2101 of the device body 21 is changed rhythmically, thereby sucking out milk, and the sucked milk flows to the milk discharge channel 2102 of the device body 21 along the flow guide groove 2201 of the breast pumping cover 22, and is discharged into the milk storage cavity 2103 through the milk discharge channel 2102. That is, compared with the prior art wearable breast pump, in this specific example of the breast pump of the utility model, the sucked milk is guided to the milk discharge channel 2102 of the device body 21 by the flow guide groove 2201 of the breast pumping cover 22, and in this way, the breast pump can avoid uncontrolled flow of the sucked milk.

[0049] In addition, since the flow guide groove 2201 is provided in the breast pumping cover 22, the space of the wearable breast pumping device 20 for temporarily storing milk is increased, so that for users with a large amount of milk, the problem of backflow caused by the high liquid level of the milk temporarily stored in the breast pumping cavity 2101 of the device body 21 during the breast pumping process can be avoided.

[0050] At the same time, since the flow guide groove 2201 of the breast pumping cover 22 extends obliquely from the middle section to the end of the breast pumping cover 22, the height of the end of the flow guide groove 2201 located at the middle section of the breast pumping cover 22 is higher than the height of the end of the flow guide groove 2201 located at the end of the breast pumping cover 22, so that when the user is pumping milk while leaning against the backrest of a sofa or a bed, the height of the end of the flow guide groove 2201 located at the middle section of the breast pumping cover 22 is still higher than the height of the end of the flow guide groove 2201 located at the end of the breast pumping cover 22, thereby avoiding the problem of backflow of milk. In other words, the wearable breast pumping device 20 of the breast pump of the utility model allows the user to use in a lying position, realizing "leaning pumping".

[0051] Reference is made to the accompanying drawings Figures 2 to 7 The device body 21 comprises an assembly part 211, a shell cover 212, a duckbill valve 213, and a suction bowl 214.

[0052] The milk suction cavity 2101 and the milk discharge channel 2102 of the device body 21 are formed in the assembly component 211, the shell cover 212 is mounted on the assembly component 211, and the milk storage cavity 2103 of the device body 21 is formed between the assembly component 211 and the shell cover 212. Preferably, the shell cover 212 is detachably mounted on the assembly component 211, so that the assembly component 211 and the shell cover 212 can be cleaned separately after being detached.

[0053] It is worth mentioning that the mounting mode of the assembly component 211 and the shell cover 212 is not limited in the breast pump of the utility model. For example, in the specific example of the breast pump of the utility model shown in the accompanying drawings, the mounting mode of the assembly component 211 and the shell cover 212 can be clamping, specifically, the front of the assembly component 211 has a ring-shaped component flange 2111 extending backward, the shape and size of the component flange 2111 are consistent with those of the opening edge of the shell cover 212, the opening edge of the shell cover 212 can be inserted into the component flange 2111 of the assembly component 211, and the assembly component 211 and the shell cover 212 are clamped based on the friction force generated between the outer wall of the opening edge of the shell cover 212 and the inner wall of the component flange 2111 of the assembly component 211, so as to form the milk storage cavity 2103 of the device body 21 between the assembly component 211 and the shell cover 212. Figures 1 to 7

[0054] The duckbill valve 213 is mounted on the assembly component 211 to selectively open and close the milk discharge channel 2102 of the device body 21, when the duckbill valve 213 opens the milk discharge channel 2102 of the device body 21, the milk discharge channel 2102 allows the milk suction cavity 2101 and the milk storage cavity 2103 to communicate, and when the duckbill valve 213 closes the milk discharge channel 2102 of the device body 21, the milk discharge channel 2102 prevents the milk suction cavity 2101 and the milk storage cavity 2103 from communicating.

[0055] Specifically, the bottom of the assembly component 211 has a plug-in arm 2112, and the milk discharge channel 2102 of the device body 21 is formed in the plug-in arm 2112, wherein the top of the duckbill valve 213 has a plug-in hole 2131, the inner diameter of the plug-in hole 2131 of the duckbill valve 213 is consistent with the outer diameter of the plug-in arm 2112 of the assembly component 211, and the plug-in arm 2112 of the assembly component 211 is inserted into the plug-in hole 2131 of the duckbill valve 213 to mount the duckbill valve 213 on the assembly component 211. ​

[0056] The suction bowl 214 is mounted on the assembly component 211, and the suction bowl 214 is used to form the negative pressure cavity 2104 of the device body 21. Preferably, the assembly component 211 has a receiving groove 2113 and a component passage 2114 which is communicated with the receiving groove 2113 and the milk suction cavity 2101, the suction bowl 214 is received in the receiving groove 2113 of the assembly component 211, and the edge of the suction bowl 214 is clamped between the assembly component 211 and the shell cover 212, and the shell cover passage 2121 of the shell cover 212 is communicated with the bowl cavity 2141 of the suction bowl 214. The material of the suction bowl 214 can be silica gel.

[0057] One end of the air pipe 30 is connected to the shell cover passage 2121 of the shell cover 212, when the main machine 10 works and air is pumped out, the main machine 10 can pump out the air in the bowl cavity 2141 of the suction bowl 214 through the air pipe 30 to increase the negative pressure in the negative pressure cavity 2104 of the device body 21, at this time, the air in the milk suction cavity 2101 of the device body 21 is discharged into the receiving groove 2113 of the assembly component 211 through the component passage 2114 of the assembly component 211 to increase the negative pressure in the milk suction cavity 2101, in this process, the duckbill valve 213 makes the milk discharge passage 2102 of the device body 21 in a closed state, and the milk is temporarily stored in the milk suction cavity 2101 of the device body 21. When the main machine 10 is deflated, the air is allowed to enter the bowl cavity 2141 of the suction bowl 214 to reduce the negative pressure in the negative pressure cavity 2104 of the device body 21, at this time, the air in the receiving groove 2113 of the assembly component 211 enters the milk suction cavity 2101 of the device body 21 through the component passage 2114, in this process, the duckbill valve 213 makes the milk discharge passage 2102 of the device body 21 in an open state, and the milk is allowed to enter the milk storage cavity 2103 through the milk discharge passage 2102.

[0058] Referring to the drawings Figure 6 And Figure 7 The edge of the suction bowl 214 wraps the groove edge of the receiving groove 2113 of the assembly component 211 to avoid air leakage of the negative pressure cavity 2104 of the device body 21, so as to not only facilitate to ensure the milk suction efficiency, but also can avoid the milk stored in the milk storage cavity 2103 of the device body 21 from leaking into the negative pressure cavity 2104.

[0059] Specifically, the edge of the suction bowl 214 has a bowl flange 2142 extending outwardly and rearwardly, which wraps around the groove edge of the receiving groove 2113 of the assembly component 211 after the suction bowl 214 is received in the receiving groove 2113 of the assembly component 211, and the shell cover 212 is pressed on the bowl flange 2142 of the suction bowl 214, so that the bowl flange 2142 of the suction bowl 214 avoids air leakage of the negative pressure cavity 2104 of the device body 21.

[0060] With reference to the accompanying drawings Figures 3 to 7 In this specific example of the breast pump of the utility model, the breast cup 22 has a positioning boss 2202, and the device body 21 has a positioning groove 2105, and when the breast cup 22 is installed on the device body 21, first, the positioning boss 2202 of the breast cup 22 and the positioning groove 2105 of the device body 21 are aligned, and second, the rear part of the breast cup 22 is pushed into the breast cavity 2101 of the device body 21, so that the wearable breast pumping device 20 can ensure that the end of the flow guide groove 2201 of the breast cup 22 extends to a position adjacent to the milk discharge channel 2102 of the device body 21. That is, the positioning boss 2202 of the breast cup 22 and the positioning groove 2105 of the device body 21 cooperate with each other to avoid misalignment of the flow guide groove 2201 of the breast cup 22 and the milk discharge channel 2102 of the device body 21.

[0061] Alternatively, in other examples of the breast pump of the utility model, the positioning boss 2202 can be formed on the device body 21, and correspondingly, the positioning groove 2105 can be formed on the breast cup 22, so that when the breast cup 22 is installed on the device body 21, first, the positioning boss 2202 of the device body 21 and the positioning groove 2105 of the breast cup 22 are aligned, and second, the rear part of the breast cup 22 is pushed into the breast cavity 2101 of the device body 21, so that the wearable breast pumping device 20 can ensure that the end of the flow guide groove 2201 of the breast cup 22 extends to a position adjacent to the milk discharge channel 2102 of the device body 21.

[0062] Preferably, in this specific example of the breast pump of the utility model, the position of the flow guide groove 2201 of the breast cup 22 is adjacent to the position of the positioning boss 2202, so that the flow guide groove 2201 of the breast cup 22 can have a larger inclination angle, that is, the end of the flow guide groove 2201 of the breast cup 22 located at the middle section of the breast cup 22 and the end of the flow guide groove 2201 located at the end of the breast cup 22 have a larger height difference, meeting the needs of users for sucking.

[0063] attached Figures 8 to 10 Another wearable breast pump 20A is shown, which includes a device body 21A having a breast pumping cavity 2101A, a milk discharge channel 2102A, a milk storage cavity 2103A, a negative pressure cavity 2104A, and a flow guide groove 2201A formed by recessing the inner wall of the device body 21A for forming the breast pumping cavity 2101A, the breast pumping cavity 2101A, the flow guide groove 2201A, the milk discharge channel 2102A, and the milk storage cavity 2103A are sequentially communicated, the breast pumping cavity 2101A and the negative pressure cavity 2104A are independent of each other, and the negative pressure state of the breast pumping cavity 2101A and the negative pressure state of the negative pressure cavity 2104A are positively correlated, that is, the negative pressure of the breast pumping cavity 2101A increases with the increase of the negative pressure of the negative pressure cavity 2104A, and the negative pressure of the breast pumping cavity 2101A decreases with the decrease of the negative pressure of the negative pressure cavity 2104A, so that the negative pressure state of the breast pumping cavity 2101A and the negative pressure state of the negative pressure cavity 2104A are positively correlated. In other words, when the negative pressure of the negative pressure cavity 2104A of the device body 21A increases, the negative pressure of the breast pumping cavity 2101A of the device body 21A increases accordingly, and when the negative pressure of the negative pressure cavity 2104A of the device body 21A decreases, the negative pressure of the breast pumping cavity 2101A of the device body 21A decreases accordingly.

[0064] Preferably, the wearable breast pumping device 20A further comprises a breast pumping cup 22A mounted on the device body 21A, which can cover at least a part of the breast when the user uses the wearable breast pumping device 20A, so that the breast pumping cup 22A and the device body 21A can cooperate with each other to assist the user in pumping milk with the main machine 10. Preferably, the breast pumping cup 22A is detachably mounted on the device body 21A, so that on the one hand, the device body 21A and the breast pumping cup 22A can be washed separately after being detached, and on the other hand, the user can choose the breast pumping cup 22A of different materials, sizes and shapes according to the needs to meet the personalized needs of the user.

[0065] When the user needs to use the breast pump to pump milk and place the wearable breast pumping device 20A in the underwear, the breast pumping cup 22A covers a part of the breast, for example, the breast pumping cup 22A can only cover the areola, or can further cover the root of the breast. When the main machine 10 is working, the negative pressure in the negative pressure cavity 2104A of the device body 21A can be changed rhythmically, so that the negative pressure in the breast pumping cavity 2101A of the device body 21A can be changed rhythmically, thereby pumping out milk. The pumped milk flows along the flow guide groove 2201A of the device body 21A to the milk discharge channel 2102A of the device body 21A, and is discharged into the milk storage cavity 2103A through the milk discharge channel 2102A. That is, compared with the wearable breast pump of the prior art, in this specific example of the breast pump of the utility model, the pumped milk is guided by the flow guide groove 2201A of the device body 21A to the milk discharge channel 2102A of the device body 21A. In this way, the breast pump can avoid uncontrolled flow of pumped milk.

[0066] In addition, since the device body 21A provides the flow guide groove 2201A, the space of the wearable breast pumping device 20A for temporarily storing milk is increased, so that for users with a large amount of milk, the problem of backflow caused by the high liquid level of milk temporarily stored in the breast pumping cavity 2101A of the device body 21A during the pumping process can be avoided.

[0067] Reference is made to the accompanying drawings Figure 10 After the tail end of the breast pumping cup 22A is mounted on the device body 21A, the tail end of the breast pumping cup 22A extends to the outside of the flow guide groove 2201A of the device body 21A, and when the user pumps milk with the backrest of the sofa or bed, the breast pumping cup 22A can block the backflow of milk to realize "back pumping".

[0068] Reference is made to the accompanying drawingsFigures 8 to 10 The device body 21A comprises an assembling part 211A, a shell cover 212A, a duckbill valve 213A and a suction bowl 214A.

[0069] The suction bowl 214A is arranged at the tail of the assembling part 211A, and the milk suction cavity 2101A of the device body 21A is formed between the assembling part 211A and the suction bowl 214A. The milk discharge channel 2102A and the flow guide groove 2201A of the device body 21A are formed in the assembling part 211A. The shell cover 212A is mounted on the assembling part 211A and abuts against the suction bowl 214A, the milk storage cavity 2103A of the device body 21A is formed between the assembling part 211A and the shell cover 212A, and the negative pressure cavity 2104A of the device body 21A is formed between the suction bowl 214A and the shell cover 212A. The duckbill valve 213A is mounted on the assembling part 211A to selectively open and close the milk discharge channel 2102A of the device body 21A, and when the duckbill valve 213A opens the milk discharge channel 2102A of the device body 21A, the milk discharge channel 2102A allows the milk suction cavity 2101A and the milk storage cavity 2103A to communicate, and when the duckbill valve 213A closes the milk discharge channel 2102A of the device body 21A, the milk discharge channel 2102A prevents the milk suction cavity 2101A and the milk storage cavity 2103A from communicating.

[0070] It is worth mentioning that, in the specific example of the breast pump of the utility model shown in the accompanying drawings, Figures 8 to 10 In this specific example of the breast pump of the utility model, the assembling part 211A and the suction bowl 214A are two independent parts, and the suction bowl 214A is mounted at the tail of the assembling part 211A, so that the suction bowl 214A is arranged at the tail of the assembling part 211A. Alternatively, in other specific examples of the breast pump of the utility model, the suction bowl 214A can also be integrally formed at the tail of the assembling part 211A, so that the suction bowl 214A is arranged at the tail of the assembling part 211A.

[0071] Preferably, referring to the accompanying drawings, Figure 10 The edge of the suction bowl 214A is clamped between the tail of the assembling part 211A and the shell cover 212A to increase the sealing performance of the milk suction cavity 2101A, the milk storage cavity 2103A and the negative pressure cavity 2104A of the device body 21A, so as to ensure the milk suction effect of the breast pump.

[0072] Specifically, as Figure 10As shown, the assembling part 211A has a receiving groove 2110A, the suction cup 214A has a receiving groove 2143A, the shell cover 212A has an abutting arm 2122A, the abutting arm 2122A of the shell cover 212A is inserted into the receiving groove 2143A of the suction cup 214A, the suction cup 214A is received in the receiving groove 2110A of the assembling part 211A, so that the abutting arm 2122A of the shell cover 212A and the inner wall of the assembling part 211A for forming the receiving groove 2110A can clamp the suction cup 214A, increasing the sealing of the breast pumping cavity 2101A, the milk storage cavity 2103A and the negative pressure cavity 2104A of the device body 21A, to ensure the breast pumping effect of the breast pump.

[0073] Preferably, with reference to the accompanying drawings, Figures 8 to 10 , the shell cover 212A is detachably mounted on the assembling part 211A, so that after the assembling part 211A and the shell cover 212A are detached, the assembling part 211A and the shell cover 212A can be cleaned separately.

[0074] Preferably, with reference to the accompanying drawings, Figure 10 , the bottom of the assembling part 211A has a plug-in arm 2112A, the milk discharge channel 2102A of the device body 21A is formed in the plug-in arm 2112A, wherein the top of the duckbill valve 213A has a plug-in hole 2131A, the inner diameter of the plug-in hole 2131A of the duckbill valve 213A is consistent with the outer diameter of the plug-in arm 2112A of the assembling part 211A, the plug-in arm 2112A of the assembling part 211A is inserted into the plug-in hole 2131A of the duckbill valve 213A, to mount the duckbill valve 213A on the assembling part 211A.

[0075] Preferably, with reference to the accompanying drawings, Figure 10 , the assembling part 211A has a ring protrusion 2115A, the breast pumping cover 22A has a ring groove 221A, when the tail of the breast pumping cover 22A is mounted on the assembling part 211A, the ring protrusion 2115A of the assembling part 211A is clamped into the ring groove 221A of the breast pumping cover 22A, so that the breast pumping cover 22A is reliably mounted on the assembling part 211A.

[0076] One end of the air tube 30 can be connected to the cover passage 2121A of the cover 212A. When the main machine 10 is working and pumping, the main machine 10 can pump the air in the negative pressure cavity 2104A of the device body 21A to increase the negative pressure in the negative pressure cavity 2104A of the device body 21A through the air tube 30. At this time, the space of the milk suction cavity 2101A of the device body 21A is increased to increase the negative pressure in the milk suction cavity 2101A. In this process, the duckbill valve 213A makes the milk discharge passage 2102A of the device body 21A in a closed state, and the milk is temporarily stored in the milk suction cavity 2101A of the device body 21A. When the main machine 10 is de-energized, the air is allowed to enter the negative pressure cavity 2104A of the device body 21A to reduce the negative pressure in the negative pressure cavity 2104A of the device body 21A. At this time, the space of the milk suction cavity 2101A of the device body 21A is reduced and the negative pressure is reduced. In this process, the duckbill valve 213A makes the milk discharge passage 2102A of the device body 21A in an open state, and the milk is allowed to enter the milk storage cavity 2103A through the milk discharge passage 2102A.

[0077] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only examples and do not limit the utility model. The purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been shown and explained in the embodiments, and the implementation of the utility model can be any deformation or modification without departing from the principle.

Claims

1. A wearable breastmilk pumping device, characterized in that, including: a breast cup, wherein the breast cup has a flow guide groove, the flow guide groove being obliquely extended from a middle section to a terminal end of the breast cup; and a device body, wherein the device body has a breast pumping cavity, a milk discharging passage, a milk storage cavity and a negative pressure cavity, the milk discharging passage being communicated between the breast pumping cavity and the milk storage cavity, the breast pumping cavity and the negative pressure cavity being independent of each other, and a negative pressure state of the breast pumping cavity and a negative pressure state of the negative pressure cavity being positively correlated, wherein the breast cup is installed to the device body, the terminal end of the flow guide groove of the breast cup being adjacent to the milk discharging passage of the device body.

2. The wearable breast pumping device according to claim 1, wherein the breast cup has a positioning boss, the device body has a positioning groove, and the breast cup is installed to the device body in a manner that the positioning boss is inserted into the positioning groove.

3. The wearable breast pumping device according to claim 1, wherein the breast cup has a positioning groove, the device body has a positioning boss, and the breast cup is installed to the device body in a manner that the positioning boss is inserted into the positioning groove.

4. The wearable breast pumping device according to claim 2, wherein the flow guide groove of the breast cup and the positioning boss are adjacent to each other.

5. The wearable breast pumping device according to any one of claims 1 to 4, wherein the device body comprises an assembly part, a shell cover, a duckbill valve and a suction bowl, the breast pumping cavity and the milk discharging passage of the device body are formed in the assembly part, the shell cover is installed to the assembly part, the milk storage cavity of the device body is formed between the assembly part and the shell cover, the duckbill valve is installed to the assembly part for selectively opening and closing the milk discharging passage of the device body, and the suction bowl is installed to the assembly part, the suction bowl being used to form the negative pressure cavity of the device body.

6. The wearable breast pumping device according to claim 5, wherein a rim of the suction bowl is clamped between the assembly part and the shell cover, and the negative pressure cavity of the device body is formed between the suction bowl and the shell cover.

7. The wearable breast pumping device according to claim 6, wherein the assembly part has a receiving groove and a part passage, the part passage being communicated between the receiving groove and the breast pumping cavity, the suction bowl is received in the receiving groove of the assembly part, and a rim of the suction bowl is abutted to a groove edge of the receiving groove of the assembly part, the shell cover has a shell cover passage, and the shell cover passage of the shell cover is communicated to a bowl cavity of the suction bowl.

8. The wearable breast pumping device according to claim 7, wherein the rim of the suction bowl wraps the groove edge of the receiving groove of the assembly part.

9. A wearable breast pump, characterized in that including: a breast cup, wherein the breast cup has a flow guide groove, the flow guide groove being obliquely extended from a middle section to a terminal end of the breast cup; and a device body, wherein the device body has a breast pumping cavity, a milk discharging passage, a milk storage cavity and a negative pressure cavity, the milk discharging passage being communicated between the breast pumping cavity and the milk storage cavity, the breast pumping cavity and the negative pressure cavity being independent of each other, and a negative pressure state of the breast pumping cavity and a negative pressure state of the negative pressure cavity being positively correlated, wherein the breast cup is installed to the device body, the terminal end of the flow guide groove of the breast cup being adjacent to the milk discharging passage of the device body. The device body, wherein the device body has a milk suction cavity, a milk discharge channel, a milk storage cavity, and a negative pressure cavity, the milk discharge channel communicates the milk suction cavity and the milk storage cavity, the milk suction cavity and the negative pressure cavity are independent of each other, and the negative pressure state of the milk suction cavity and the negative pressure state of the negative pressure cavity are positively correlated, wherein the milk suction cover is mounted on the device body, and the end of the flow guide groove of the milk suction cover extends to the milk discharge channel of the device body.

10. A wearable breast pump, characterized in that, The device body, wherein the device body has a milk suction cavity, a milk discharge channel, a milk storage cavity, and a negative pressure cavity, the milk discharge channel communicates the milk suction cavity and the milk storage cavity, the milk suction cavity and the negative pressure cavity are independent of each other, and the negative pressure state of the milk suction cavity and the negative pressure state of the negative pressure cavity are positively correlated, wherein the milk suction cover is mounted on the device body, and the end of the flow guide groove of the milk suction cover extends to the milk discharge channel of the device body.

11. The wearable breast pumping device of claim 10, wherein the wearable breast pumping device comprises a milk suction cover, a tail end of the milk suction cover is mounted on the device body, and the tail end of the milk suction cover extends to the outside of the flow guide groove of the device body.

12. The wearable breast pumping device of claim 10, wherein the device body comprises an assembly part, a shell cover, a duckbill valve, and a suction bowl, wherein the suction bowl is arranged at the tail end of the assembly part, the milk suction cavity of the device body is formed between the assembly part and the suction bowl, the milk discharge channel and the flow guide groove of the device body are formed in the assembly part, the shell cover is mounted on the assembly part and abuts against the suction bowl, the milk storage cavity of the device body is formed between the assembly part and the shell cover, the negative pressure cavity of the device body is formed between the shell cover and the suction bowl, and the duckbill valve is mounted on the assembly part to selectively open and close the milk discharge channel of the device body.

13. The wearable breast pumping device of claim 12, wherein the edge of the suction bowl is clamped between the assembly part and the shell cover.

14. The wearable breast pumping device of claim 13, wherein the assembly part has a containing groove, the suction bowl has a receiving groove, the shell cover has an abutting arm, the abutting arm of the shell cover is inserted into the receiving groove of the suction bowl, and the suction bowl is accommodated in the containing groove of the assembly part, so that the abutting arm of the shell cover and the inner wall of the assembly part for forming the containing groove clamp the edge of the suction bowl.

15. The wearable breast pumping device of claim 12, wherein the suction bowl is formed at the tail of the assembly part. The device body, wherein the device body has a milk suction cavity, a milk discharge channel, a milk storage cavity, and a negative pressure cavity, the milk discharge channel communicates the milk suction cavity and the milk storage cavity, the milk suction cavity and the negative pressure cavity are independent of each other, and the negative pressure state of the milk suction cavity and the negative pressure state of the negative pressure cavity are positively correlated, wherein the milk suction cover is mounted on the device body, and the end of the flow guide groove of the milk suction cover extends to the milk discharge channel of the device body.

16. A breast pump characterized in that The device body, wherein the device body has a milk suction cavity, a milk discharge channel, a milk storage cavity, and a negative pressure cavity, the milk discharge channel communicates the milk suction cavity and the milk storage cavity, the milk suction cavity and the negative pressure cavity are independent of each other, and the negative pressure state of the milk suction cavity and the negative pressure state of the negative pressure cavity are positively correlated, wherein the milk suction cover is mounted on the device body, and the end of the flow guide groove of the milk suction cover extends to the milk discharge channel of the device body. ​ ​ ​

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