Breast pump
By incorporating a one-way valve and a buffer chamber into the milk storage component of the breast pump, the problem of milk spillage is solved, enabling temporary containment and stable backflow of milk during shaking, thus improving the reliability and convenience of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHENSHI LUTEJIACHENG SUPPLYCHAIN MANAGEMENT CO LTD
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-10
AI Technical Summary
If the existing breast pump is not used properly, milk can easily overflow from the vent of the bottle, causing the user's clothes to get wet, resulting in discomfort and embarrassment.
A breast pump was designed, comprising a milk pumping component, a milk storage component, and a negative pressure component. The milk storage component is equipped with a one-way valve and a buffer chamber. The one-way valve has a buffer chamber that communicates with the bottle to temporarily contain spilled milk when shaken, preventing it from overflowing directly, and allowing it to flow back into the bottle after stabilization.
It effectively prevents milk from overflowing from the milk storage component, avoiding user discomfort and embarrassment, while reducing milk waste and improving the reliability and convenience of the breast pump.
Smart Images
Figure CN224099740U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of maternal and infant products, in particular to a breast pump. BACKGROUND
[0002] A breast pump is a tool for expressing milk accumulated in mammary glands, and is generally applicable to a situation where a baby cannot suck milk directly or a situation where a mother leaves the baby but still wants to breastfeed.
[0003] In the prior art, if the breast pump is not used properly, for example, it is used while walking or in a shaking environment, milk will overflow from the exhaust hole of the milk bottle, wetting the user's clothes and causing discomfort and embarrassment to the user. SUMMARY
[0004] The main purpose of the utility model is to provide a breast pump, which aims to reduce the overflow of milk from the milk storage assembly.
[0005] To achieve the above-mentioned purpose, the utility model provides a breast pump, which comprises a breast pumping assembly, a milk storage assembly and a negative pressure assembly, the breast pumping assembly is used for being attached to the breast of a user, the milk storage assembly is in communication with the breast pumping assembly, the milk storage assembly is used for storing milk, and the negative pressure assembly is used for directly or indirectly applying negative pressure to the breast pumping assembly, the milk storage assembly comprises a milk bottle and a check valve, the milk bottle is used for receiving milk flowing from the breast pumping assembly, the check valve is connected to the bottle opening of the milk bottle and is used for unidirectionally guiding the flow of milk between the milk bottle and the breast pumping assembly, and the check valve has a buffer cavity in communication with the milk bottle and is used for buffering milk overflowing from the milk bottle.
[0006] In an embodiment, the cavity wall of the buffer cavity is provided with a drainage opening in communication with the milk bottle.
[0007] In an embodiment, the number of drainage openings is a plurality, and the plurality of drainage openings are distributed along the circumferential direction of the cavity wall of the buffer cavity.
[0008] In an embodiment, the check valve comprises a valve seat and a valve body, the valve seat is connected to the valve body, the valve seat is connected to the milk bottle, and the buffer cavity is formed between the valve seat and the valve body.
[0009] In an embodiment, the valve seat is provided with a through hole, the valve body passes through the through hole and is detachably connected to the valve seat.
[0010] In an embodiment, the valve seat comprises a circumferential edge connected to the milk bottle and a bottom wall connected to the circumferential edge, and the buffer cavity is formed between the circumferential edge, the bottom wall and the valve body.
[0011] In an embodiment, the buffer cavity is annular.
[0012] In an embodiment, the breast pump further comprises a valve cover connected to the breast assembly, the valve cover covers the valve seat when the breast assembly is connected to the milk storage assembly, and the valve cover is provided with an exhaust hole for connecting the buffer cavity to the atmosphere.
[0013] In an embodiment, the valve cover is snap-connected to the valve seat.
[0014] In an embodiment, the valve seat is screw-connected to the milk bottle.
[0015] The breast pump provided by the technical scheme of the utility model comprises a breast assembly, a milk storage assembly and a negative pressure assembly, the breast assembly is attached to a breast, the negative pressure assembly directly or indirectly applies negative pressure to the breast assembly, milk is sucked out of the breast and stored in the milk storage assembly, and the milk is sucked out. The milk storage assembly comprises a milk bottle and a check valve, the milk bottle is used for receiving milk flowing out of the breast assembly, the check valve is detachably connected to a bottle opening of the milk bottle, the check valve unidirectionally guides the flow of milk between the milk bottle and the breast assembly, and the check valve further has a buffer cavity in communication with the milk bottle. When a user uses the breast pump to suck milk while walking or in a shaking scene, the milk first overflows into the buffer cavity from the milk bottle and cannot directly overflow from the milk storage assembly, so that the user's clothes are not wetted, and the user is not uncomfortable and embarrassed. After the user is stable, the milk in the buffer cavity flows back to the milk bottle, and the milk is not wasted. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structure shown in the drawings without creative labor.
[0017] Figure 1 The structure schematic view of the breast pump provided by the utility model in an embodiment is shown in the figure.
[0018] Figure 2 The structure schematic view of the breast pump provided by the utility model in an embodiment is shown in the figure. Figure 1 The sectional view of A-A in the figure.
[0019] Figure 3 The structure schematic view of the milk storage assembly in the breast pump provided by the utility model in an embodiment is shown in the figure.
[0020] Figure 4 The structure schematic view of the breast assembly in the breast pump provided by the utility model in an embodiment is shown in the figure.
[0021] Figure 5The utility model provides a structure schematic diagram of another embodiment of the breast pump milk suction assembly.
[0022] Explanation of reference numerals:
[0023] 100, breast pump; 10, milk storage assembly; 11, milk bottle; 12, one-way valve; 121, valve seat; 1211, buffer cavity; 1212, liquid discharge port; 122, valve body; 20, breast pump milk suction assembly; 21, valve cover; 211, exhaust hole; 212, first connecting part; 213, second connecting part; 30, negative pressure assembly.
[0024] The utility model discloses the realization, functional characteristics and advantages will be further explained in conjunction with the embodiment, with reference to the drawings. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0026] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.
[0027] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical schemes of each embodiment can be combined with each other, but it must be based on the realization of the person skilled in the art, and when the combination of technical schemes appears contradictory or unachievable, it should be considered that the combination of technical schemes does not exist, and is not within the protection scope required by the utility model.
[0028] The breast pump is a tool for expressing the breast milk accumulated in the mammary glands, which is generally applicable to the situation when the baby cannot directly suck the breast milk, or the mother leaves the baby but still wants to breastfeed.
[0029] The existing breast pump, if not operated properly, for example, walking or in a shaking scene, causes the milk to overflow from the vent of the milk bottle, wetting the user's clothes, causing the user's discomfort and embarrassment.
[0030] The utility model provides a kind of breast pump 100, to reduce the overflow of milk from milk storage component 10.
[0031] Please refer to Figures 1 to 5 In an embodiment of the utility model, the breast pump 100 includes a breast assembly 20, a milk storage component 10, and a negative pressure component 30. The breast assembly 20 is used to fit the user's breast. The milk storage component 10 is in communication with the breast assembly 20 and is used to store milk. The negative pressure component 30 is used to directly or indirectly apply negative pressure to the breast assembly 20. The milk storage component 10 includes a milk bottle 11 and a one-way valve 12. The milk bottle 11 is used to receive milk flowing from the breast assembly 20. The one-way valve 12 is connected to the bottle opening of the milk bottle 11 and is used to one-way conduct the flow of milk between the milk bottle 11 and the breast assembly 20. The one-way valve 12 has a buffer cavity 1211 in communication with the milk bottle 11 and is used to buffer the overflow of milk from the milk bottle 11.
[0032] In this embodiment, by arranging the one-way valve 12 connected with the opening inner edge in the milk bottle 11 of the milk storage component 10, and the one-way valve 12 has the buffer cavity 1211, when the situation such as shaking occurs that may cause milk to overflow, the buffer cavity 1211 can temporarily accommodate the overflow of milk from the milk bottle 11, effectively preventing the milk from directly overflowing from the milk bottle 11, avoiding wetting the user's clothes, reducing the user's discomfort and embarrassment, and improving the reliability and convenience of the use of the breast pump 100.
[0033] The breast pump 100 according to the technical scheme of the utility model includes a breast assembly 20, a milk storage component 10, and a negative pressure component 30. The breast assembly 20 fits the breast. The negative pressure component 30 directly or indirectly applies negative pressure to the breast assembly 20, sucks out the milk from the breast and stores it in the milk storage component 10, and realizes the suction of the milk. The milk storage component 10 includes a milk bottle 11 and a one-way valve 12. The milk bottle 11 is used to receive milk flowing from the breast assembly 20. The one-way valve 12 is detachably connected at the bottle opening of the milk bottle 11. The one-way valve 12 one-way conducts the flow of milk between the milk bottle 11 and the breast assembly 20. The one-way valve 12 also has a buffer cavity 1211 in communication with the milk bottle 11. When the user uses the breast pump 100 to suck milk while walking or in a shaking scene, the milk first overflows from the milk bottle 11 into the buffer cavity 1211 and does not directly overflow from the milk storage component 10, so as not to wet the user's clothes and cause the user's discomfort and embarrassment. When it is stable, the milk in the buffer cavity 1211 will flow back to the milk bottle 11, and the waste of milk will not occur.
[0034] In an embodiment of the present application, the cavity wall of the buffer cavity 1211 is provided with a liquid discharge port 1212 in communication with the feeding bottle 11.
[0035] In the present embodiment, the liquid temporarily stored in the buffer cavity 1211 can be backflowed to the feeding bottle 11 through the liquid discharge port 1212, so that the waste of milk is avoided, and the buffer cavity 1211 is not in contact with the outside, so that the pollution of the milk is also avoided.
[0036] In an embodiment of the present application, the number of the liquid discharge ports 1212 is multiple, and the multiple liquid discharge ports 1212 are distributed along the circumferential direction of the cavity wall of the buffer cavity 1211.
[0037] In the present embodiment, the buffer cavity 1211 is provided with multiple liquid discharge ports 1212, so that the milk can be backflowed to the feeding bottle 11 through the multiple liquid discharge ports 1212, and the backflow speed is faster, so that the milk in the buffer cavity 1211 will not overflow due to fullness. In a preferred embodiment, the multiple liquid discharge ports 1212 are uniformly distributed along the circumference of the buffer cavity 1211.
[0038] In an embodiment of the present application, the one-way valve 12 comprises a valve seat 121 and a valve body 122, the valve seat 121 is connected with the valve body 122, the valve seat 121 is connected with the feeding bottle 11, and the buffer cavity 1211 is formed in the valve seat 121.
[0039] In the present embodiment, the one-way valve 12 comprises the valve seat 121 and the valve body 122 connected with each other, the buffer cavity 1211 is formed in the valve seat 121, the valve body 122 has a liquid flow channel for one-way conduction of the feeding bottle 11, the valve seat 121 is connected with the feeding bottle 11, and the specific connection mode can adopt a detachable connection mode such as plug-in connection or screw connection, so that the one-way valve 12 can be conveniently and quickly detached for cleaning; the valve body 122 is located in the feeding bottle 11, and has an effect of one-way conduction of the milk flow between the feeding bottle 11 and the breast pumping assembly 20.
[0040] In an embodiment of the present application, the valve seat 121 is provided with a through hole, and the valve body 122 penetrates through the through hole and is detachably connected with the valve seat 121.
[0041] In the present embodiment, the valve seat 121 is provided with a through hole in communication with the feeding bottle 11, the valve body 122 penetrates through the through hole and is detachably connected with the through hole edge of the valve seat 121, and the specific connection mode can adopt plug-in connection with interference fit or connection modes such as screw connection, so that the one-way valve 12 can be conveniently and quickly detached for cleaning; the valve body 122 is located in the feeding bottle 11, and has an effect of one-way conduction of the milk flow between the feeding bottle 11 and the breast pumping assembly 20. In a preferred embodiment, the through hole is provided at the center position of the valve seat 121, so that the valve body 122 is also located at the center position of the valve seat 121, and the milk flow is prevented from being deflected.
[0042] In an embodiment of the present application, the valve seat 121 comprises a peripheral edge connected to the milk bottle 11 and a bottom wall connected to the peripheral edge, and the buffer cavity 1211 is formed between the peripheral edge, the bottom wall and the valve body 122.
[0043] In the embodiment, the valve seat 121 comprises a peripheral edge connected to the bottle opening of the milk bottle 11 and a bottom wall connected to the peripheral edge, and the buffer cavity 1211 is formed between the peripheral edge, the bottom wall and the outer peripheral wall of the valve body 122, and the liquid discharge port 1212 is arranged at the connection between the peripheral edge and the bottom wall, so that the milk temporarily stored in the buffer cavity 1211 can flow back into the milk bottle 11 through the liquid discharge port 1212.
[0044] In an embodiment of the present application, the buffer cavity 1211 is annular.
[0045] In the embodiment, the buffer cavity 1211 is formed between the peripheral edge, the bottom wall and the outer peripheral wall of the valve body 122, and the buffer cavity 1211 is annular, so that the milk overflowing from all directions can enter the buffer cavity 1211, further preventing the milk from overflowing from the milk bottle 11.
[0046] In an embodiment of the present application, the breast pump 100 further comprises a valve cover 21 connected to the breast pumping assembly 20, and when the breast pumping assembly 20 is connected to the milk storage assembly 10, the valve cover 21 covers the valve seat 121, and the valve cover 21 is provided with an exhaust hole 211 communicating the buffer cavity 1211 with the atmosphere.
[0047] In the embodiment, the valve cover 21 is arranged on the breast pumping assembly 20, and when the breast pumping assembly 20 is connected to the milk storage assembly 10, the valve cover 21 covers the opening of the buffer cavity 1211 of the valve seat 121 to close the buffer cavity 1211 and prevent the milk in the buffer cavity 1211 from overflowing to the outside. In order to better flow the milk into the milk bottle 11, the valve cover 21 is further provided with an exhaust hole 211 communicating the buffer cavity 1211 with the atmosphere and communicating the milk bottle 11 with the atmosphere.
[0048] In an embodiment of the present application, the valve cover 21 and the valve seat 121 are snap connected.
[0049] In the embodiment, the valve cover 21 and the valve seat 121 are snap connected, which facilitates disassembly and cleaning of the valve cover 21 and the valve seat 121, and improves the disassembly and installation efficiency of the breast pump 100.
[0050] In an embodiment of the present application, the valve seat 121 and the milk bottle 11 are screwedly connected.
[0051] In the embodiment, the outer peripheral wall of the valve seat 121 is screw-coupled to the bottle mouth of the feeding bottle 11. The screw-coupled connection has the advantage of good sealing performance, preventing milk from overflowing between the outer peripheral wall of the valve seat 121 and the bottle mouth of the feeding bottle 11, wetting the clothes of the user, and causing discomfort and embarrassment of the user.
[0052] In other embodiments, the surface of the valve cover 21 towards the valve seat 121 is provided with a first connecting portion 212, which is in interference fit with the cavity wall of the buffer cavity 1211, so as to connect the valve cover 21 and the valve seat 121. The first connecting portion 212 can be a ring-shaped boss extending in the circumferential direction of the valve cover 21, or can be at least two protrusions. The first connecting portion 212 is in interference fit with the cavity wall of the buffer cavity 1211, thereby connecting the valve cover 21 and the valve seat 121 as a whole.
[0053] The first connecting portion 212 includes a plurality of sub-connecting portions, which are circumferentially spaced apart on the surface of the valve seat 121. The first connecting portion 212 includes a plurality of sub-connecting portions, which are inserted into the buffer cavity 1211 and abut against the cavity wall of the buffer cavity 1211, so as to connect the valve cover 21 and the valve seat 121 as a whole. In a preferred embodiment, the cavity wall of the buffer cavity 1211 is made of soft rubber, and the first connecting portion 212 is made of hard rubber. The hard rubber is in interference fit with the soft rubber, thereby improving the sealing performance and the connecting strength between the valve cover 21 and the valve seat 121.
[0054] The surface of the valve cover 21 towards the valve seat 121 is further provided with a second connecting portion 213, which is in plug-in connection with the inner edge of the opening of the liquid flow passage away from the feeding bottle 11. The surface of the valve cover 21 is further provided with the second connecting portion 213, which is in plug-in connection with the inner edge of the valve body 122, so as to divide the buffer cavity 1211 into two parts. One part is used for temporarily storing milk, and the other part in the middle is in communication with the breast pumping assembly 20, thereby further reducing the overflow of milk. The second connecting portion 213 is made of hard rubber, and the valve body 122 is made of soft rubber, so that the second connecting portion 213 is in interference fit with the inner edge of the opening of the liquid flow passage of the valve body 122 away from the feeding bottle 11. The second connecting portion 213 is made of hard rubber, and the valve body 122 is made of soft rubber. The hard rubber is in interference fit with the soft rubber, thereby improving the sealing performance and the connecting strength between the valve cover 21 and the valve seat 121.
[0055] The above description is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.
Claims
1. A breast pump comprising a breast cup assembly for fitting to a breast of a user, a milk storage assembly in communication with the breast cup assembly for storing milk, and a negative pressure assembly for directly or indirectly applying negative pressure to the breast cup assembly, characterised in that, The milk storage assembly comprises: a milk bottle for receiving milk flowing from the breast pump assembly; and a one-way valve connected to a bottle opening of the milk bottle for unidirectionally allowing milk to flow between the milk bottle and the breast pump assembly, the one-way valve having a buffer cavity in communication with the milk bottle for buffering milk overflowing from the milk bottle.
2. The breast pump of claim 1, wherein, The cavity wall of the buffer cavity is provided with a plurality of discharge openings in communication with the milk bottle.
3. The breast pump of claim 2, wherein, The plurality of discharge openings are distributed along a circumferential direction of the cavity wall of the buffer cavity.
4. The breast pump of any one of claims 1 to 3, wherein, The one-way valve comprises a valve seat and a valve body, the valve seat is connected to the valve body, the valve seat is connected to the milk bottle, and the buffer cavity is formed between the valve seat and the valve body.
5. The breast pump of claim 4, wherein, The valve seat is provided with a through hole, and the valve body passes through the through hole and is detachably connected to the valve seat.
6. The breast pump of claim 4, wherein, The valve seat comprises a peripheral edge connected to the milk bottle and a bottom wall connected to the peripheral edge, and the buffer cavity is formed between the peripheral edge, the bottom wall and the valve body.
7. The breast pump of claim 6, wherein, The buffer cavity is annular.
8. The breast pump of claim 4, wherein, The breast pump further comprises a valve cover connected to the breast pump assembly, the valve cover covers the valve seat when the breast pump assembly is connected to the milk storage assembly, and the valve cover is provided with a vent hole in communication with the buffer cavity and the atmosphere.
9. The breast pump of claim 8, wherein, The valve cover is snap-connected to the valve seat.
10. The breast pump of claim 4, wherein, The valve seat is screw-connected to the milk bottle.