Breast sucking assembly and breast pump

Abstract

The utility model discloses a breast pumping assembly and a breast pump. The breast pumping assembly is applied to the breast pump and comprises a milk storage container, a milk guide part, a negative pressure part and a one-way valve. The milk storage container comprises a container main body and a container cover plate, the container cover plate covers and seals the container main body, and a milk storage cavity is defined by the container cover plate and the container main body; the milk guide part and the negative pressure part are both fixedly connected to the side, facing the milk storage cavity, of the container cover plate or arranged on the container cover plate in a penetrating mode and extend into the milk storage cavity, the milk guide part is provided with a milk guide channel, the negative pressure part is provided with a negative pressure cavity communicated with the milk guide channel, and the milk guide part or the negative pressure part is further provided with a milk flowing opening communicated with the milk storage cavity; the milk flowing opening is used for allowing milk to flow into the milk storage cavity from the milk guide channel or the negative pressure cavity; the one-way valve is fixedly connected to at least one of the container cover plate, the milk guiding piece and the negative pressure piece and used for opening and closing the milk flowing opening. According to the milk sucking assembly, the number of parts is reduced, the disassembly and assembly speed is increased, and the probability that the parts are lost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of maternal and infant products, in particular to a milk suction assembly and a breast pump. Background Art

[0002] A breast pump is a tool used to squeeze out breast milk accumulated in the mammary glands. It achieves changes in internal air pressure through a suction pump, that is, a cycle of "suction" and "release" operations to imitate the action of a baby sucking breast milk and achieve the purpose of milk extraction.

[0003] In the related art, the breast pump has many parts, which are troublesome to disassemble and assemble, especially the small parts, which are easy to lose. Utility Model Content

[0004] The utility model aims to provide a milk suction assembly and a breast pump, which aims to solve the technical problem of excessive number of parts of a breast pump.

[0005] In a first aspect, the utility model provides a milk suction assembly.

[0006] A milk suction assembly, applied to a breast pump, comprising:

[0007] A milk storage container, the milk storage container comprising a container body and a container cover, the container cover and the container body enclosed to form a milk storage cavity;

[0008] A milk guide piece and a negative pressure piece, wherein the milk guide piece and the negative pressure piece are both connected to a side of the container cover plate facing the milk storage cavity or are arranged through the container cover plate and extend into the milk storage cavity, the milk guide piece has a milk guide channel, the negative pressure piece has a negative pressure cavity connected to the milk guide channel, the milk guide piece or the negative pressure piece is further provided with a milk flow port connected to the milk storage cavity, and the milk flow port is used for milk to flow from the milk guide channel or the negative pressure cavity into the milk storage cavity;

[0009] A one-way valve is connected to at least one of the container cover, the milk guide member and the negative pressure member and extends to the milk outlet, and is used to allow the milk in the milk guide channel to flow to the milk storage cavity in a one-way manner.

[0010] As an embodiment, the one-way valve is a component made of soft material, the container cover, the milk guide piece and the negative pressure piece are all components made of hard material, and the one-way valve is fixedly connected to at least one of the container cover, the milk guide piece and the negative pressure piece through an integrated injection molding process.

[0011] As an embodiment, the milk guide member and the negative pressure member are arranged side by side and share a common wall, and the milk outlet is formed on a side of the negative pressure member away from the milk guide member;

[0012] When the breast pump is placed on the breast, the negative pressure member is located below the milk guide member;

[0013] One end of the one-way valve is fixedly connected to the connection between the negative pressure piece and the milk guide piece, and the other end extends to the milk flow port.

[0014] As an implementation mode, the negative pressure member includes a main body and a clamping portion;

[0015] The main body and the milk guide are arranged side by side and share a common wall, and are provided with the negative pressure cavity and the milk flow port. The clamping portion is connected to a side of the main body facing away from the negative pressure cavity and is arranged close to the milk flow port.

[0016] The clamping portion and the main body are combined to form a clamping groove for the one-way valve to be inserted and limited.

[0017] As an implementation mode, the one-way valve includes a fixing portion, a blocking portion and a plug-in portion;

[0018] The inserting portion is connected between the fixing portion and the shielding portion, and is used to be inserted into the negative pressure piece or the milk guide piece at a position close to the milk flow outlet to limit the shielding portion; the fixing portion is fixedly connected to at least one of the container cover, the milk guide piece and the negative pressure piece, and the shielding portion is used to shield the milk flow outlet.

[0019] As an implementation manner, the fixing portion includes two arms, and the two arms are respectively connected to two ends of the inserting portion.

[0020] As an implementation manner, the one-way valve is a single-piece one-way valve.

[0021] As an embodiment, the milk storage container further includes a sealing ring and a sealing member;

[0022] The sealing ring is arranged between the container body and the container cover plate, and is used to seal the milk storage cavity;

[0023] The milk storage container is provided with a milk pouring port connected to the milk storage cavity, one end of the sealing member detachably seals the milk pouring port, and the other end passes through the container cover plate and is connected to the sealing ring;

[0024] The sealing member and the sealing ring are at least integrally injection-molded with the container cover.

[0025] As an embodiment, the breast pump assembly further includes a host housing and a breast shield;

[0026] The breast shield comprises a first side portion and a second side portion arranged opposite to the first side portion, the first side portion is used for covering a breast, and the mainframe housing is arranged between the container cover and the second side portion.

[0027] In a second aspect, the utility model provides a breast pump.

[0028] A breast pump comprises the above-mentioned milk suction assembly.

[0029] The milk suction assembly and breast pump provided by the utility model connect the one-way valve to at least one of the container cover, the milk guide piece and the negative pressure piece, so that when the milk suction assembly is disassembled (for example, the various parts of the milk suction assembly are disassembled for cleaning), the one-way valve is still connected to at least one of the container cover, the milk guide piece and the negative pressure piece, which greatly reduces the probability of losing the one-way valve, reduces the number of independent parts of the milk suction assembly, and can speed up the disassembly and assembly speed. Therefore, the milk suction assembly provided by the utility model reduces the number of parts, speeds up the disassembly and assembly speed, and reduces the probability of losing parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the structure of a breast pump provided by an embodiment of the utility model;

[0032] Figure 2 It is a cross-sectional view of a milk storage container, a milk guide piece and a negative pressure piece provided in an embodiment of the utility model;

[0033] Figure 3 It is a schematic diagram of the assembly structure of the milk storage container provided by the embodiment of the utility model with the milk guide piece and the negative pressure piece after the container body is removed;

[0034] Figure 4 It is a schematic diagram of the assembly structure of the container cover, the milk guide piece and the negative pressure piece provided by the embodiment of the utility model from one perspective;

[0035] Figure 5 It is a schematic diagram of the assembly structure of the container cover, the milk guide piece and the negative pressure piece provided by the embodiment of the utility model from another perspective;

[0036] Figure 6 It is a structural schematic diagram of a one-way valve provided in an embodiment of the utility model;

[0037] Figure 7 It is a schematic structural diagram of a breast shield provided by an embodiment of the utility model.

[0038] Description of Figure Numbers:

[0039] 100, breast pump; 10, milk storage container; 11, container body; 12, container cover; 13, milk storage chamber; 14, sealing ring; 15, milk pouring port; 16, sealing member; 20, milk guide member; 21, milk guide channel; 30, negative pressure member; 31, negative pressure chamber; 32, main body; 33, clamping part; 34, clamping groove; 40, milk outlet; 50, one-way valve; 51, fixing part; 511, support arm; 52, shielding part; 53, clamping part; 60, groove; 70, main body shell; 80, breast shield; 81, first side part; 82, second side part.

[0040] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0043] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0044] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0045] like Figure 1 and Figure 2 As shown, the milk suction assembly provided by the embodiment of the utility model is applied to a breast pump 100, and includes a milk storage container 10; the milk storage container 10 includes a container body 11 and a container cover 12, and the container cover 12 and the container body 11 are enclosed to form a milk storage cavity 13. The milk storage cavity 13 is used to temporarily store milk sucked from the breast.

[0046] See also Figure 1 and Figure 2 The milk suction assembly further includes a milk guide 20 and a negative pressure member 30. The milk guide 20 and the negative pressure member 30 are both connected to the side of the container cover 12 facing the milk storage chamber 13 or are arranged through the container cover 12 and extend into the milk storage chamber 13. The milk guide 20 has a milk guide channel 21, and the negative pressure member 30 has a negative pressure chamber 31 connected to the milk guide channel 21. The milk guide 20 or the negative pressure member 30 is also provided with a milk flow port 40 connected to the milk storage chamber 13, and the milk flow port 40 is used for milk to flow from the milk guide channel 21 or the negative pressure chamber 31 into the milk storage chamber 13. In a specific application, the nipple is inserted into or aligned with the milk guide channel 21, and the suction pump of the breast pump 100 generates suction negative pressure in the negative pressure chamber 31. Through the connection between the negative pressure chamber 31 and the milk guide channel 21, suction negative pressure is generated in the milk guide channel 21, thereby realizing the sucking out of milk. By connecting the milk guide piece 20 and the negative pressure piece 30 to the side of the container cover 12 facing the milk storage chamber 13 or penetrating the container cover 12 and extending into the milk storage chamber 13, a milk flow port 40 is opened on the milk guide piece 20 or the negative pressure piece 30, so that the milk flow port 40 can be connected to the milk storage chamber 13.

[0047] See also Figure 2 and Figure 3The milking assembly further comprises a one-way valve 50, which is connected to at least one of the container cover 12, the milk guide member 20 and the negative pressure member 30 and extends to the milk outlet, so as to allow the milk in the milk guide channel 21 to flow to the milk storage chamber 13 in one direction. In a specific application, the one-way valve 50 is located in the milk storage chamber 13 and blocks the milk flow port 40. When the suction pump of the breast pump 100 generates suction negative pressure in the negative pressure chamber 31, the one-way valve 50 is tightly attached to the milk flow port 40 under the action of the suction negative pressure, so that the milk flow port 40 is sealed and milk cannot pass through the milk flow port 40. When the suction pump of the breast pump 100 does not work and the pressure in the negative pressure chamber 31 is normal, the one-way valve 50 blocks the milk flow port 40. Under the action of gravity, milk flows from the negative pressure chamber 31 or the milk guide channel 21 to the milk storage chamber 13, and the one-way valve 50 can be pushed open to flow into the milk storage chamber 13 through the milk flow port 40.

[0048] By adopting the above technical solution, by connecting the one-way valve 50 to at least one of the container cover 12, the milk guide 20 and the negative pressure member 30, when the milk pumping assembly is disassembled (for example, the various parts of the milk pumping assembly are disassembled for cleaning), the one-way valve 50 is still connected to at least one of the container cover 12, the milk guide 20 and the negative pressure member 30, which greatly reduces the probability of losing the one-way valve 50, reduces the number of independent parts of the milk pumping assembly, and speeds up the disassembly and assembly. Therefore, the milk pumping assembly provided in this embodiment reduces the number of parts, speeds up the disassembly and assembly, and reduces the probability of losing parts.

[0049] As an embodiment, the one-way valve 50 is a component made of soft material, the container cover 12, the milk guide 20 and the negative pressure component 30 are all components made of hard material, and the one-way valve 50 is fixedly connected with at least one of the container cover 12, the milk guide 20 and the negative pressure component 30 through an integral injection molding process. In specific applications, the fixed connection is performed by an integral injection molding process of soft and hard rubber, which effectively ensures the stability of the connection.

[0050] As an embodiment, the milk guide 20 and the negative pressure member 30 are arranged side by side and share a wall. When the breast pump 100 is placed on the breast, the negative pressure member 30 is located below the milk guide 20. With this arrangement, on the one hand, the space occupied by the milk guide 20 and the negative pressure member 30 is reduced, thereby ensuring the space size of the milk storage chamber 13; on the other hand, it is convenient for the user to check the flow of milk in the nipple channel, thereby helping to select the use mode of the breast pump 100. Among them, sharing a wall means that the milk guide 20 and the negative pressure member 30 share a side wall, one side of the side wall faces the milk guide channel 21, and the other side faces the negative pressure chamber 31. Of course, in a specific application, as an alternative embodiment, the milk guide 20 and the negative pressure member 30 are not arranged on the same wall, for example, a connecting tube is arranged between the two to connect the milk guide channel 21 and the negative pressure chamber 31. As another alternative embodiment, when the breast pump 100 is placed on the breast, the negative pressure member 30 is located above or beside the milk guide 20. Preferably, the milk guide piece 20 and the negative pressure piece 30 are integrally injection molded, which effectively reduces the number of parts of the milk suction assembly and speeds up the assembly and disassembly of the milk suction assembly.

[0051] See also Figure 1 , Figure 2 and Figure 4 , the milk outlet 40 is formed on the side of the negative pressure member 30 away from the milk guide member 20. When the breast pump 100 is placed on the breast, the negative pressure member 30 is located below the milk guide channel 21, and the milk outlet 40 is formed on the side of the negative pressure member 30 away from the milk guide member 20, that is, the milk outlet 40 is located on the lower side of the negative pressure member 30, and the liquid flows to the lower part under the action of gravity. The milk outlet 40 is set on the lower side of the negative pressure member 30 so that the milk can flow out of the negative pressure chamber 31 as much as possible, avoiding the milk from being retained in the negative pressure chamber 31 and causing waste. Of course, in specific applications, as an alternative implementation scheme, the milk outlet 40 can also be opened at other parts of the negative pressure member 30, such as at one end of the negative pressure member 30 away from the container cover 12. As another alternative implementation scheme, the milk outlet 40 can also be formed on the milk guide member 20.

[0052] As an embodiment, the one-way valve 50 is fixedly connected to the milk guide member 20 and the negative pressure member 30. This arrangement reduces the number of parts of the milk suction assembly. Preferably, the one-way valve 50, the negative pressure member 30 and the milk guide member 20 are integrally injection molded. It is understood that in other embodiments, the one-way valve 50 can also be fixedly connected to other components, such as fixedly connected to the milk guide member 20 or the negative pressure member 30 or the container cover 12.

[0053] See also Figures 1 to 5, one end of the one-way valve 50 is fixedly connected to the connection between the negative pressure member 30 and the milk guide member 20, and the other end extends to the milk outlet 40. In this way, the connection of the one-way valve 50 is realized, and the one-way valve 50 is turned on and off to the milk outlet 40. In a specific application, in order to adapt to the miniaturized design of the breast pump 100, the volume of the milk storage container 10 is small, which results in limited space under the milk guide member 20. In order to ensure the space size of the negative pressure chamber 31, the cross section of the negative pressure member 30 is set to a rectangle, one of the long sides of which is connected to the milk guide member 20, and in order to make the milk guide member 20 match the nipple, the cross section of the milk guide member 20 is usually set to a circle. In this way, a groove 60 is formed at the connection between the negative pressure member 30 and the milk guide member 20, and one end of the one-way valve 50 is fixedly connected to the connection between the negative pressure member 30 and the milk guide member 20, that is, one end of the one-way valve 50 is fixedly arranged in the groove 60, which improves the connection stability of the one-way valve 50.

[0054] See also Figures 2 to 4 The negative pressure member 30 includes a main body 32 and a clamping portion 33; the main body 32 and the milk guide 20 are arranged side by side and share the same wall, and are provided with a negative pressure chamber 31 and a milk outlet 40; the clamping portion 33 is connected to the side of the main body 32 facing away from the negative pressure chamber 31 and is arranged near the milk outlet 40; the clamping portion 33 and the main body 32 are surrounded to form a clamping groove 34 for the one-way valve 50 to be inserted and limited. Specifically, the milk outlet 40 is formed on the side of the main body 32 away from the milk guide 20 and away from the container cover 12, and the clamping groove 34 is formed at one end of the main body 32 away from the container cover 12.

[0055] As an embodiment, the milk guide piece 20 and the negative pressure piece 30 are fixedly connected to the side of the container cover 12 facing the milk storage chamber 13. Such an arrangement reduces the number of parts of the milk suction assembly. Preferably, the container cover 12, the milk guide piece 20 and the negative pressure piece 30 are integrally injection molded. It is understood that in other embodiments, the milk guide piece 20 and the negative pressure piece 30 are also possible to penetrate the container cover 12 and extend into the milk storage chamber 13.

[0056] See also Figure 2 , Figure 5 and Figure 6The one-way valve 50 includes a fixing portion 51 and a shielding portion 52. The shielding portion 52 is used to shield the milk flow port 40. The fixing portion 51 is fixedly connected to at least one of the container cover 12, the milk guide 20 and the negative pressure member 30. The structure is simple, and the manufacturing is convenient and fast. In a specific application, when the milk flows from the negative pressure chamber 31 to the milk storage chamber 13, the shielding portion 52 opens the milk flow port 40 to allow the milk to pass through; when the milk flows from the milk storage chamber 13 to the negative pressure chamber 31, the shielding portion 52 shields the milk flow port 40 so that the milk cannot enter the negative pressure chamber 31 through the milk flow port 40, thereby avoiding milk backflow. In addition, in this embodiment, the fixing portion 51 is fixedly connected to the connection between the milk guide 20 and the negative pressure member 30, that is, the fixing portion 51 is fixedly arranged in the groove 60, thereby greatly improving the connection stability of the one-way valve 50.

[0057] See also Figure 4 and Figure 6 The one-way valve 50 further includes a card inserting portion 53, which is connected between the fixing portion 51 and the shielding portion 52, and is used to be inserted into the negative pressure member 30 or the milk guide member 20 near the milk outlet 40 to limit the shielding portion 52. Specifically, the card inserting portion 53 is inserted into the card slot 34. In this way, the card inserting portion 53 can limit and fix the shielding portion 52, so that the shielding portion 52 can be closely attached to the milk outlet 40, thereby achieving shielding of the milk outlet 40.

[0058] See also Figure 5 and Figure 6 The fixing portion 51 includes two arms 511, and the two arms 511 are respectively connected to the two ends of the inserting portion 53. Specifically, two grooves 60 are formed at the connection between the milk guide piece 20 and the negative pressure piece 30, and the two grooves 60 are respectively located on both sides of the side wall shared by the milk guide piece 20 and the negative pressure piece 30, and one arm 511 is fixed in one groove 60. In this way, the stability of the fixed connection of the fixing portion 51 is increased.

[0059] As an embodiment, the one-way valve 50 is a one-piece one-way valve. The one-piece one-way valve is small in size and occupies little space, thereby ensuring that the milk storage chamber 13 has a sufficiently large space.

[0060] See also Figure 2 and Figure 3 The milk suction assembly further comprises a sealing ring 14, which is arranged between the container body 11 and the container cover 12 and is used to seal the milk storage chamber 13. In this way, the milk storage chamber 13 can be prevented from leaking milk.

[0061] See also Figure 1 and Figure 2The container body 11 is provided with a milk pouring port 15 connected to the milk storage cavity 13, and the milk suction assembly further includes a sealing member 16, one end of which is detachably sealed with the milk pouring port 15, and the other end is connected to the sealing ring 14 through the container cover 12. In a specific application, when the breast pump 100 is used to suck milk, the sealing member 16 is sealed at the milk pouring port 15, and after the milk is sucked out, it eventually flows into the milk storage cavity 13 for temporary storage, and does not flow out from the milk pouring port 15; when the breast pump 100 has sucked the milk in one or both breasts, the sealing member 16 is detached from the milk pouring port 15, and the milk in the milk storage cavity 13 can be poured out through the milk pouring port 15. It can be understood that in other embodiments, the milk pouring port 15 can also be provided on the container cover 12.

[0062] As an embodiment, the sealing ring 14 and the sealing member 16 are both made of soft materials, and the sealing ring 14 and the sealing member 16 are at least integrally injection molded with the container cover 12. In this way, the number of parts of the milking assembly is reduced, and the probability of parts being lost is reduced, especially for parts with a small volume such as the sealing member 16. In this embodiment, the sealing ring 14, the sealing member 16, the container cover 12, the milk guide member 20 and the negative pressure member 30 are integrally molded.

[0063] See also Figure 1 , Figure 2 and Figure 7 The milk pump assembly further includes a mainframe housing 70 and a breast shield 80; the breast shield 80 includes a first side portion 81 and a second side portion 82 arranged opposite to the first side portion 81, the first side portion 81 is used to cover the breast, and the mainframe housing 70 is arranged between the container cover 12 and the second side portion 82. When the milk guide 20 and the negative pressure member 30 are inserted through the container cover 12 and extend into the milk storage cavity 13, the milk guide 20 and the negative pressure member 30 are both connected to the mainframe housing 70 or the breast shield 80.

[0064] Furthermore, the embodiment of the utility model also provides a breast pump 100, comprising the above-mentioned milk suction assembly. By adopting the above-mentioned milk suction assembly, the number of parts is reduced, the disassembly and assembly speed is accelerated, and the probability of part loss is reduced.

[0065] As an embodiment, the breast pump 100 further includes a pump body and a solenoid valve, both of which are arranged in the main housing 70. When the pump body is working, the solenoid valve is not working, and the pump body sucks away air to generate negative pressure; when the solenoid valve is working, the pump body is not working, and the solenoid valve is opened to allow air to flow into the negative pressure chamber 31.

[0066] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A milk suction assembly, applied to a breast pump, characterized in that: include: A milk storage container, the milk storage container comprising a container body and a container cover, the container cover and the container body enclosed to form a milk storage cavity; A milk guide piece and a negative pressure piece, wherein the milk guide piece and the negative pressure piece are both connected to a side of the container cover plate facing the milk storage cavity or are arranged through the container cover plate and extend into the milk storage cavity, the milk guide piece has a milk guide channel, the negative pressure piece has a negative pressure cavity connected to the milk guide channel, the milk guide piece or the negative pressure piece is further provided with a milk flow port connected to the milk storage cavity, and the milk flow port is used for milk to flow from the milk guide channel or the negative pressure cavity into the milk storage cavity; A one-way valve is connected to at least one of the container cover, the milk guide member and the negative pressure member and extends to the milk outlet, and is used to allow the milk in the milk guide channel to flow to the milk storage cavity in a one-way manner.

2. A breast pump assembly according to claim 1, characterized in that The one-way valve is a component made of soft material, the container cover, the milk guide piece and the negative pressure piece are all components made of hard material, and the one-way valve is fixedly connected to at least one of the container cover, the milk guide piece and the negative pressure piece through an integrated injection molding process.

3. The breast pump assembly according to claim 1, wherein: The milk guide piece and the negative pressure piece are arranged side by side and share a common wall, and the milk outlet is formed on a side of the negative pressure piece away from the milk guide piece; When the breast pump is placed on the breast, the negative pressure member is located below the milk guide member; One end of the one-way valve is fixedly connected to the connection between the negative pressure piece and the milk guide piece, and the other end extends to the milk flow port.

4. A breast pump assembly according to claim 3, characterized in that The negative pressure member comprises a main body and a clamping portion; The main body and the milk guide are arranged side by side and share a common wall, and are provided with the negative pressure cavity and the milk flow port. The clamping portion is connected to a side of the main body facing away from the negative pressure cavity and is arranged close to the milk flow port. The clamping portion and the main body are combined to form a clamping groove for the one-way valve to be inserted and limited.

5. A breast pump assembly according to any one of claims 1 to 4, characterized in that The one-way valve comprises a fixing portion, a blocking portion and a plug-in portion; The inserting portion is connected between the fixing portion and the shielding portion, and is used to be inserted into the negative pressure piece or the milk guide piece at a position close to the milk flow outlet to limit the shielding portion; the fixing portion is fixedly connected to at least one of the container cover, the milk guide piece and the negative pressure piece, and the shielding portion is used to shield the milk flow outlet.

6. A breast pump assembly according to claim 5, characterized in that The fixing portion comprises two supporting arms, and the two supporting arms are respectively connected to two ends of the inserting portion.

7. A breast pump assembly according to any one of claims 1 to 4, characterized in that The one-way valve is a single-piece one-way valve.

8. A breast pump assembly according to any one of claims 1 to 4, characterized in that The milk storage container also includes a sealing ring and a sealing member; The sealing ring is arranged between the container body and the container cover plate, and is used to seal the milk storage cavity; The milk storage container is provided with a milk pouring port connected to the milk storage cavity, one end of the sealing member detachably seals the milk pouring port, and the other end passes through the container cover plate and is connected to the sealing ring; The sealing member and the sealing ring are at least integrally injection-molded with the container cover.

9. A breast pump assembly according to any one of claims 1 to 4, characterized in that The breast pump assembly also includes a mainframe housing and a breast shield; The breast shield comprises a first side portion and a second side portion arranged opposite to the first side portion, the first side portion is used for covering a breast, and the mainframe housing is arranged between the container cover and the second side portion.

10. A breast pump, characterized in that: Comprising a milk pump assembly as claimed in any one of claims 1 to 9.

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