Breast pump and duckbill valve thereof

Abstract

The breast pump comprises a feeding bottle, a three-way part, a negative pressure forming part and the duckbill valve, the negative pressure forming part is installed on the three-way part and used for forming a negative pressure environment in the negative pressure forming part through a negative pressure opening of the three-way part, and the duckbill valve comprises a valve body and a lapping edge. The lapping edge extends from the top of the valve body to the periphery, the valve body is installed on the three-way component and used for selectively opening and closing a milk discharging port of the three-way component, and after the milk bottle is installed on the three-way component, the valve body is connected with the three-way component through the lapping edge and used for selectively opening and closing the milk discharging port of the three-way component. The feeding bottle covers the valve body, the lapping edge is clamped between the opening edge of the feeding bottle and the three-way component, and the air hole of the three-way component is communicated with the vent hole of the lapping edge. According to the breast pump, the feeding bottle can be communicated with the external environment while the sealing performance of the connecting position of the feeding bottle and the three-way component is guaranteed, so that exhaust is achieved.

Description

TECHNICAL FIELD

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

[0002] The duckbill valve is installed on the tee joint and is a component for controlling the communication state of the tee joint and the feeding bottle of the breast pump. For example, in the Chinese invention patent application with the publication number CN115192799A, the inventor discloses a breast pump, which comprises an electric heating breast pumping cover, a tee joint, an air bag, an end cover, a duckbill valve and a feeding bottle. The air bag and the electric heating breast pumping cover are detachably installed on the tee joint. The end cover is detachably installed on the tee joint and covers the air bag. The end cover and the air bag enclose an expandable air chamber. The end cover has an air flow channel communicating with the expandable air chamber. The duckbill valve is installed on the tee joint. The feeding bottle is detachably installed on the tee joint. In the invention patent application, when the feeding bottle is installed on the tee joint, the duckbill valve is suspended on the bottle opening of the feeding bottle by the tee joint. The sealing of the feeding bottle and the tee joint is only realized by the thread structure between the feeding bottle and the tee joint. The sealing effect is poor, and the problem of milk leakage is prone to occur. SUMMARY

[0003] One object of the utility model is to provide a breast pump and duckbill valve thereof, wherein the breast pump can ensure the sealing of the connection between the feeding bottle and the tee joint component and communicate the feeding bottle with the external environment to realize exhaust.

[0004] One object of the utility model is to provide a breast pump and duckbill valve thereof, wherein when the feeding bottle is installed on the tee joint component, the abutting edge of the duckbill valve is clamped between the rim of the feeding bottle and the tee joint component to prevent a gap from being formed between the rim of the feeding bottle and the tee joint component by the abutting edge of the duckbill valve, thereby ensuring the sealing of the connection between the feeding bottle and the tee joint component. Meanwhile, the air permeable hole of the tee joint component and the air passage hole of the abutting edge are communicated, so that the feeding bottle and the external environment are communicated to realize exhaust.

[0005] One object of the utility model is to provide a breast pump and duckbill valve thereof, wherein the abutting edge of the duckbill valve is provided with an air guide groove with an upward opening, and the circumferential dimension of the air guide groove is greater than the dimension of the air passage hole, so that when the duckbill valve is installed on the tee joint component, the air permeable hole of the tee joint component and the air passage hole of the duckbill valve are communicated. Preferably, the air guide groove is annular, so that the air permeable hole of the tee joint component and the air passage hole of the duckbill valve can be communicated no matter how the duckbill valve is installed on the tee joint component at any angle.

[0006] The utility model discloses a purpose lies in providing a kind of breast pump and duckbill valve thereof, wherein during installing the feeding bottle in the tee component, the torsion that the feeding bottle applies to the abutting side will not affect the valve body, and will not cause the vent hole blockage.

[0007] According to one aspect of the utility model, the utility model provides a kind of duckbill valve for breast pump, it includes:

[0008] Valve body;And

[0009] Abutting side, wherein the abutting side integrally extends from the top of the valve body to all around, wherein the abutting side has vent hole, and the vent hole penetrates the top surface and bottom surface of the abutting side.

[0010] According to one embodiment of the utility model, the abutting side has air guide groove with opening upwards, and the top opening of the vent hole is formed in the groove bottom of the air guide groove, wherein the size of the circumferential direction of the air guide groove is greater than the size of the top opening of the vent hole.

[0011] According to one embodiment of the utility model, the air guide groove of the abutting side is annular, and from the perspective of top view, the air guide groove of the abutting side surrounds the valve body.

[0012] According to one embodiment of the utility model, the abutting side includes inner side portion and outer side portion, the inner side portion is connected with the valve body and the outer side portion, and the vent hole of the abutting side is formed in the inner side portion, wherein the thickness size of the outer side portion is less than the thickness size of the inner side portion, the top surface of the outer side portion is flush with the top surface of the inner side portion, and the bottom surface of the outer side portion has height difference with the bottom surface of the inner side portion.

[0013] According to one embodiment of the utility model, the abutting side includes a group of reinforcing ribs, and a group of the reinforcing ribs are arranged at the bottom surface of the outer side portion with mutual spacing.

[0014] According to another aspect of the utility model, the utility model further provides a kind of breast pump, which includes:

[0015] Feeding bottle;

[0016] Tee component, wherein the tee component has milk inlet, negative pressure port, milk outlet and vent hole adjacent to the milk outlet;

[0017] Negative pressure forming portion, wherein the negative pressure forming portion is installed in the tee component, for forming negative pressure environment in the tee component through the negative pressure port of the tee component;And

[0018] The duckbill valve comprises a valve body and a resting edge integrally extending from a top of the valve body, the resting edge having a vent hole penetrating a top surface and a bottom surface of the resting edge, wherein the valve body of the duckbill valve is installed on the tee component for selectively opening and closing the milk outlet of the tee component, after the feeding bottle is installed on the tee component, the feeding bottle covers the valve body and the resting edge is clamped between a rim of the feeding bottle and the tee component, the vent hole of the tee component and the vent hole of the resting edge are communicated.

[0019] According to an embodiment of the present application, the resting edge has a gas guiding groove with an opening facing upward, a top opening of the vent hole is formed on a groove bottom of the gas guiding groove, a circumferential dimension of the gas guiding groove is greater than a dimension of the top opening of the vent hole, wherein the vent hole of the tee component is communicated with the gas guiding groove of the resting edge, so that the vent hole of the tee component and the vent hole of the resting edge are communicated through the gas guiding groove of the resting edge.

[0020] According to an embodiment of the present application, the gas guiding groove of the resting edge is annular, and the gas guiding groove of the resting edge surrounds the valve body in a top view.

[0021] According to an embodiment of the present application, the resting edge comprises an inner portion and an outer portion, the inner portion connects the valve body and the outer portion, the vent hole of the resting edge is formed on the inner portion, wherein a thickness dimension of the outer portion is less than a thickness dimension of the inner portion, a top surface of the outer portion is flush with a top surface of the inner portion, a bottom surface of the outer portion has a height difference with a bottom surface of the inner portion, wherein a width dimension of the outer portion is greater than or equal to a thickness dimension of the rim of the feeding bottle.

[0022] According to an embodiment of the present application, the resting edge comprises a plurality of reinforcing ribs, the reinforcing ribs are arranged on the bottom surface of the outer portion at intervals. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of a breast pump according to a preferred embodiment of the present application.

[0024] Figure 2 is a sectional view of the breast pump according to the preferred embodiment of the present application.

[0025] Figure 3 is a perspective view of a part of the breast pump according to the preferred embodiment of the present application.

[0026] Figure 4 is a perspective view of another view angle of the partial position of the breast pump according to the above preferred embodiment of the present utility model.

[0027] Figure 5 is a sectional view of the partial position of the breast pump according to the above preferred embodiment of the present utility model.

[0028] Figure 6 is an exploded view of one view angle of the partial position of the breast pump according to the above preferred embodiment of the present utility model.

[0029] Figure 7 is an exploded view of another view angle of the partial position of the breast pump according to the above preferred embodiment of the present utility model.

[0030] Figure 8 is a sectional view of one view angle of a duckbill valve of the breast pump according to the above preferred embodiment of the present utility model.

[0031] Figure 9 is a sectional view of one view angle of the duckbill valve of the breast pump according to the above preferred embodiment of the present utility model. DETAILED DESCRIPTION

[0032] Before any embodiments of the present utility model are explained in detail, it is to be understood that the present utility model is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The present utility model 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.

[0033] And, in the disclosure of the utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "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 utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the utility model; 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, and the term "one" cannot be understood as a limitation on the number.

[0034] Reference is made to the drawings of the description of the utility model Figures 1 to 9 A breast pump according to a preferred embodiment of the utility model will be disclosed and described in the following description, wherein the breast pump comprises a three-way component 10, a negative pressure forming part 20, a duckbill valve 30 and a feeding bottle 40, the negative pressure forming part 20, the duckbill valve 30 and the feeding bottle 40 are respectively installed on the three-way component 10, and a part of the duckbill valve 30 is clamped between the feeding bottle 40 and the three-way component 10 to prevent a gap between the three-way component 10 and the feeding bottle 40 from being formed by the duckbill valve 30, so as to avoid the problem of milk leakage at the connection position of the three-way component 10 and the feeding bottle 40.

[0035] Specifically, the three-way component 10 has a milk inlet 11, a negative pressure port 12, a milk outlet 13 and an air vent 14, the milk outlet 13 and the air vent 14 are adjacent. The negative pressure forming part 20 is installed on the three-way component 10, and the negative pressure forming part 20 is used to form a negative pressure environment in the three-way component 10 through the negative pressure port 12 of the three-way component 10. It is worth mentioning that the installation mode of the three-way component 10 and the negative pressure forming part 20 in the breast pump of the utility model is not limited, as long as the negative pressure forming part 20 can form a negative pressure environment in the three-way component 10.

[0036] Reference is made to the drawings of the description of the utility model Figures 7 to 9 , and in combination with the drawings Figure 2The duckbill valve 30 comprises a valve body 31 and a clamping side 32, the clamping side 32 integrally extends from the top of the valve body 31, and the clamping side 32 has a vent hole 321. Preferably, the valve body 31 and the clamping side 32 are integrally formed by a silicone material through an injection molding process, and the vent hole 321 of the clamping side 32 is synchronously formed when the valve body 31 and the clamping side 32 are formed. Alternatively, in other examples of the breast pump of the present application, the valve body 31 and the clamping side 32 can also be formed by a two-step molding process. The valve body 31 of the duckbill valve 30 is installed on the three-way component 10, and the valve body 31 is used to selectively open and close the milk outlet 13 of the three-way component 10.

[0037] The feeding bottle 40 is detachably installed on the three-way component 10, after the feeding bottle 40 is installed on the three-way component 10, the feeding bottle 40 covers the valve body 31 of the duckbill valve 30, and the clamping side 32 is clamped between the rim 41 of the feeding bottle 40 and the three-way component 10, so as to prevent a gap from being formed between the three-way component 10 and the rim 41 of the feeding bottle 40 by the clamping side 32, thereby avoiding the problem of milk leakage at the connection position of the three-way component 10 and the feeding bottle 40, and the vent hole 14 of the three-way component 10 and the vent hole 321 of the clamping side 32 are in communication, so that the feeding bottle 40 and the external environment are in communication, thereby achieving venting. In other words, the air in the feeding bottle 40 can be discharged through the vent hole 321 of the clamping side 32 of the duckbill valve 30 and the vent hole 14 of the three-way component 10.

[0038] When a user uses the breast pump, the negative pressure forming part 20 is used to control the magnitude of the negative pressure in the three-way component 10 through the negative pressure port 12 of the three-way component 10, when the negative pressure in the three-way component 10 is relatively large, the valve body 31 of the duckbill valve 30 closes the milk outlet 13 of the three-way component 10, and milk is sucked out and temporarily stored in the three-way component 10, when the negative pressure in the three-way component 10 is relatively small, the valve body 31 opens the milk outlet 13 of the three-way component 10, and the milk temporarily stored in the three-way component 10 is discharged into the feeding bottle 40 through the milk outlet 13 of the three-way component 10, at this time, the air in the feeding bottle 40 is discharged through the vent hole 321 of the clamping side 32 of the duckbill valve 30 and the vent hole 14 of the three-way component 10. Repeat this process, the breast pump can be used to suck milk.

[0039] In order to provide comfort for the user when using the breast pump, the breast pump further comprises a breast cup 50, as shown in FIG. 4, the breast cup 50 is detachably installed on the three-way component 10, and the breast cup 50 is used to cover the three-way component 10 when the breast cup 50 is installed on the three-way component 10, so as to prevent the three-way component 10 from being directly contacted by the user when the user uses the breast pump, thereby improving the comfort of the user when using the breast pump. Figure 1 and Figure 2The breast cup 50 is installed on the milk inlet 11 of the three-way component 10, wherein the breast cup 50 is arranged to cover a part of the breast to isolate the breast from the three-way component 10, avoiding direct contact between the breast and the three-way component 10. In addition, when the user uses the breast pump, the breast seals the opening of the breast cup 50, so that a sealed space is formed in the three-way component 10, and a negative pressure environment can be formed in the three-way component 10. It is worth mentioning that the installation mode of the three-way component 10 and the breast cup 50 is not limited in the breast pump of the utility model, as long as the breast cup 50 can be reliably installed on the three-way component 10.

[0040] Reference is made to the accompanying drawings Figures 1 to 7 The bottom of the three-way component 10 has a plug-in arm 15 and a threaded arm 16, the threaded arm 16 surrounds the outside of the plug-in arm 15, and the threaded arm 16 and the plug-in arm 15 have a receiving cavity 17, the milk outlet 13 of the three-way component 10 is formed on the plug-in arm 15, and the air vent 14 of the three-way component 10 is communicated with the receiving cavity 17. The plug-in arm 15 of the three-way component 10 can be inserted into the valve body 31 of the duckbill valve 30 to install the valve body 31 on the three-way component 10, and the communication state of the milk outlet 13 of the three-way component 10 is controlled by the valve body 31, wherein the abutting side 32 of the duckbill valve 30 is received in the receiving cavity 17 of the three-way component 10. The bottle 40 is screwed on the threaded arm 16 of the three-way component 10 in a way that the bottle opening of the bottle 40 is received in the receiving cavity 17 of the three-way component 10, so that the bottle 40 can cover the valve body 31, and the rim 41 of the bottle 40 and the three-way component 10 clamp the abutting side 32 of the duckbill valve 30, preventing a gap from being formed between the three-way component 10 and the rim 41 of the bottle 40, avoiding the problem of milk leakage at the connection position of the three-way component 10 and the bottle 40. That is, the threaded arm 16 of the three-way component 10 has internal threads, and correspondingly, the bottle opening of the bottle 40 has external threads, the internal threads of the three-way component 10 and the external threads of the bottle 40 cooperate with each other to screw the bottle 40 on the three-way component 10.

[0041] Reference is made to the accompanying drawings Figures 7 to 9, the abutting edge 32 of the duckbill valve 30 has a gas guiding groove 322 with an opening facing upward, and the top opening of the vent hole 321 is formed on the groove bottom of the gas guiding groove 322, and the circumferential dimension of the gas guiding groove 322 is greater than the dimension of the top opening of the vent hole 321, in this way, when the duckbill valve 30 is installed on the tee component 10, as long as the gas permeable hole 14 of the tee component 10 and the gas guiding groove 322 of the abutting edge 32 are communicated, the gas permeable hole 14 of the tee component 10 and the vent hole 321 of the abutting edge 32 are communicated by the gas guiding groove 322 of the abutting edge 32, and because the circumferential dimension of the gas guiding groove 322 is greater, when the user installs the duckbill valve 30 on the tee component 10, the user can easily communicate the gas permeable hole 14 of the tee component 10 and the gas guiding groove 322 of the abutting edge 32, so that the gas permeable hole 14 of the tee component 10 and the vent hole 321 of the abutting edge 32 are communicated by the gas guiding groove 322 of the abutting edge 32.

[0042] Preferably, with continued reference to the drawings Figure 7 and Figure 9 , the gas guiding groove 322 of the abutting edge 32 of the duckbill valve 30 is annular, and the gas guiding groove 322 of the abutting edge 32 surrounds the valve body 31 from a top view, in this way, no matter how the duckbill valve 30 is installed on the tee component 10, the gas permeable hole 14 of the tee component 10 and the vent hole 321 of the abutting edge 32 can be communicated by the gas guiding groove 322 of the abutting edge 32, and the situation that the feeding bottle 40 and the external environment cannot be communicated is avoided. That is, when the user installs the duckbill valve 30 on the tee component 10, the user does not need to specially confirm the installation direction of the duckbill valve 30, as long as the insertion arm 15 of the tee component 10 is inserted into the valve body 31 of the duckbill valve 30, the annular gas guiding groove 322 of the abutting edge 32 can ensure that the vent hole 321 of the abutting edge 32 and the gas permeable hole 14 of the tee component 10 are communicated.

[0043] With reference to the drawings Figure 5 , Figure 8 and Figure 9 , the abutting edge 32 of the duckbill valve 30 includes an inner portion 323 and an outer portion 324, the inner portion 323 connects the valve body 31 and the outer portion 324, and the vent hole 321 of the abutting edge 32 is formed on the inner portion 323. In the embodiment in which the abutting edge 32 of the duckbill valve 30 has the gas guiding groove 322, the gas guiding groove 322 of the abutting edge 32 is also formed on the inner portion 323.

[0044] The thickness dimension of the outer portion 324 of the abutting edge 32 is smaller than that of the inner portion 323, the top surface of the outer portion 324 is flush with that of the inner portion 323, and the bottom surface of the outer portion 324 is different in height from that of the inner portion 323. Since the thickness dimension of the inner portion 323 of the abutting edge 32 is larger than that of the outer portion 324, the inner portion 323 is not easily deformed, especially not easily deformed in the circumferential direction, relative to the outer portion 324, so that when the rim 41 of the feeding bottle 40 contacts the outer portion 324 of the abutting edge 32 and the feeding bottle 40 is further rotated during the installation of the feeding bottle 40, the torque applied by the rim 41 of the feeding bottle 40 to the outer portion 324 of the abutting edge 32 only allows the outer portion 324 to be deformed in the circumferential direction, and the inner portion 323 is not deformed in the circumferential direction, so that the breast pump can avoid the influence of the torque applied by the feeding bottle 40 to the outer portion 324 of the abutting edge 32 on the valve body 31, and avoid the blockage of the vent hole 321 formed in the inner portion 323, and ensure the communication between the feeding bottle 40 and the external environment through the vent hole 321 and the air guide groove 322 of the abutting edge 32 and the vent hole 14 of the three-way component 10.

[0045] It can be understood that when the feeding bottle 40 is installed on the three-way component 10, the rim 41 of the feeding bottle 40 and the three-way component 10 clamp the outer portion 324 of the abutting edge 32 of the duckbill valve 30, that is, the main function of the outer portion 324 of the abutting edge 32 is to prevent the connection position of the feeding bottle 40 and the three-way component 10 from being cracked, so in order to ensure that the duckbill valve 30 prevents the connection position of the feeding bottle 40 and the three-way component 10 from being cracked, and to avoid the influence of the torque generated during the installation of the feeding bottle 40 on the valve body 31 and the vent hole 321 of the abutting edge 32, it is necessary to ensure that the width dimension of the outer portion 324 of the abutting edge 32 is greater than or equal to the thickness dimension of the rim 41 of the feeding bottle 40.

[0046] Referring to the drawings Figure 9 The abutting edge 32 comprises a set of reinforcing ribs 325, and the reinforcing ribs 325 are arranged on the bottom surface of the outer portion 324 at intervals.

[0047] It will be understood by those skilled in the art that the embodiments of the present application described above and shown in the drawings are merely illustrative and not restrictive of the present application. The object of the present application has been fully and effectively achieved. The function and structural principle of the present application have been shown and described in the embodiments, and the embodiments of the present application can have any deformation or modification without departing from the principle.

Claims

1. A duckbill valve for a breast pump, characterized in that, include: Valve body; and An abutment, wherein the abutment extends integrally from the top of the valve body to all sides, wherein the abutment has a vent hole that penetrates the top and bottom surfaces of the abutment.

2. The duckbill valve according to claim 1, wherein the overlapping edge has an upward-facing air guide groove, the top opening of the vent hole is formed at the bottom of the air guide groove, and the circumferential dimension of the air guide groove is larger than the dimension of the top opening of the vent hole.

3. The duckbill valve according to claim 2, wherein the air guide groove of the overlapping side is annular, and from a top view, the air guide groove of the overlapping side surrounds the valve body.

4. The duckbill valve according to any one of claims 1 to 3, wherein the overlapping edge includes an inner portion and an outer portion, the inner portion connecting the valve body and the outer portion, the vent hole of the overlapping edge being formed in the inner portion, wherein the thickness of the outer portion is smaller than the thickness of the inner portion, the top surface of the outer portion is flush with the top surface of the inner portion, and the bottom surface of the outer portion and the bottom surface of the inner portion have a height difference.

5. The duckbill valve according to claim 4, wherein the overlapping edge includes a set of reinforcing ribs, the set of reinforcing ribs being disposed at intervals on the bottom surface of the outer portion.

6. A breast pump, characterized in that, include: Baby bottle; A three-way component, wherein the three-way component has a milk inlet, a negative pressure outlet, a milk outlet, and a vent adjacent to the milk outlet; A negative pressure forming part, wherein the negative pressure forming part is installed on the three-way component, for creating a negative pressure environment inside the three-way component through the negative pressure port of the three-way component; as well as A duckbill valve, wherein the duckbill valve includes a valve body and a venting edge, the venting edge extending integrally from the top of the valve body to all sides, the venting edge having a vent hole penetrating the top and bottom surfaces of the venting edge, wherein the valve body of the duckbill valve is mounted on the three-way component for selectively opening and closing the milk outlet of the three-way component, and after the baby bottle is mounted on the three-way component, the baby bottle covers the valve body and the venting edge is clamped between the rim of the baby bottle and the three-way component, the venting hole of the three-way component and the venting hole of the venting edge are in communication.

7. The breast pump according to claim 6, wherein the lap side has an upward-facing air guide groove, the top opening of the air vent is formed at the bottom of the air guide groove, the circumferential dimension of the air guide groove is larger than the size of the top opening of the air vent, wherein the air vent of the three-way component is connected to the air guide groove of the lap side, so that the air vent of the three-way component and the air vent of the lap side are connected through the air guide groove of the lap side.

8. The breast pump according to claim 7, wherein the air guide groove of the overlapping side is annular, and from a top view, the air guide groove of the overlapping side surrounds the valve body.

9. The breast pump according to any one of claims 6 to 8, wherein the lap edge comprises an inner portion and an outer portion, the inner portion connecting the valve body and the outer portion, the vent hole of the lap edge being formed in the inner portion, wherein the thickness of the outer portion is less than the thickness of the inner portion, the top surface of the outer portion is flush with the top surface of the inner portion, the bottom surface of the outer portion and the bottom surface of the inner portion have a height difference, wherein the width of the outer portion is greater than or equal to the thickness of the rim of the bottle.

10. The breast pump according to claim 9, wherein the lap edge includes a set of reinforcing ribs, the set of reinforcing ribs being disposed at intervals on the bottom surface of the outer portion.

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