Breast pump and milk storage assembly

Abstract

Disclosed in the present application are a breast pump and a milk storage assembly. The breast pump comprises a breast pumping shield, a milk storage container, and a negative pressure assembly. One side of the breast pumping shield is configured for covering and fitting the breast, and the other side is provided with a milk outlet. The milk storage container comprises a milk bowl and a lid. The lid covers the milk bowl and defines a milk storage space with the milk bowl. A milk inlet in communication with the milk storage space is provided on the surface of the lid. The negative pressure assembly is in communication with the breast pumping shield or the milk storage container and is configured for providing negative pressure during milk extraction. The breast pumping shield is detachably connected to the lid, and the milk outlet is in liquid communication with the milk inlet.

Description

Breast pump and milk storage assembly

[0001] Related applications

[0002] The present application claims priority to Chinese patent application No. 202411368974.5, filed on September 27, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of maternal and child products, in particular to a breast pump and milk storage assembly. BACKGROUND

[0004] The wearable breast pump is a breast pump device that can improve the convenience of breastfeeding mothers. When using the wearable breast pump, the breast pump can be placed in a bra, and the mothers can complete the breast pumping without holding the breast pump, thereby providing more freedom and privacy for the users.

[0005] The existing milk storage assembly of the wearable breast pump includes a milk bowl and a breast shield. One side of the breast shield is used to attach to the breast, and the other side and the milk bowl form a milk storage space. The area of the side of the breast shield that is attached to the breast generally needs to be designed larger to improve the breast pumping effect. After the breast pumping is completed, milk will inevitably remain on the side of the breast shield that is in contact with the breast. Since the milk bowl and the breast shield are integrated or formed together in the existing breast pump, they are in a bound state, which is not convenient for subsequent operation and processing, and brings more inconvenience to the users. SUMMARY

[0006] The main purpose of the present application is to provide a breast pump and milk storage assembly, which aims to solve the problem of inconvenience in use of the existing wearable breast pump.

[0007] To achieve the above-mentioned purpose, the present application provides a breast pump, which comprises a breast shield, a milk storage container and a negative pressure assembly. One side of the breast shield is used to cover and attach to the breast, and the other side is provided with a milk outlet. The milk storage container comprises a milk bowl and a cover, the cover is covered on the milk bowl and forms a milk storage space with the milk bowl, and the surface of the cover is provided with a milk inlet communicating with the milk storage space. The negative pressure assembly is used to directly or indirectly apply negative pressure to the breast shield or the milk storage container to suck the milk into the milk storage container.

[0008] Among them, the breast shield and the cover are detachably connected, and the milk outlet and the milk inlet are in liquid communication.

[0009] In an embodiment of the present application, the milk storage container is at least partially shaped to match the bra.

[0010] In an embodiment of the present application, the cover is integrally formed with the milk bowl.

[0011] In an embodiment of the present application, the cover is detachably connected with the milk bowl.

[0012] In an embodiment of the present application, the breast shield extends towards the cover and is formed with a first nipple passage, one end of the first nipple passage is provided with the milk outlet, and the first nipple passage is used for accommodating a nipple.

[0013] In an embodiment of the present application, the cover extends away from the breast shield and is formed with a second nipple passage, one end of the second nipple passage away from the breast shield is provided with the milk inlet, the milk outlet is in communication with the second nipple passage, and the second nipple passage is used for accommodating a nipple.

[0014] In an embodiment of the present application, the breast shield extends towards the cover and is formed with a first nipple passage, the cover extends away from the breast shield and is formed with a second nipple passage, the first nipple passage and the second nipple passage at least partially overlap, and the first nipple passage and the second nipple passage at least partially accommodate a nipple.

[0015] In an embodiment of the present application, the cover is recessed towards the milk storage space to form a fitting portion, the fitting portion is at least partially matched with the shape of the breast shield, the fitting portion is made of hard plastic, the breast shield is embedded in the fitting portion and is fitted with the fitting portion of the cover.

[0016] In an embodiment of the present application, the breast shield is provided with a milk outlet end, and the milk outlet end is in interference fit with the fitting portion of the cover.

[0017] In an embodiment of the present application, the breast shield is threadedly and sealingly connected with the cover.

[0018] In an embodiment of the present application, the side of the cover away from the breast shield is embedded in the milk bowl and is in interference fit with the milk bowl.

[0019] In an embodiment of the present application, the breast pump further comprises a one-way valve, the one-way valve comprises a milk inlet end and a milk outlet end, the milk inlet end is in communication with the milk inlet, and at least the milk outlet end is arranged in the milk storage space.

[0020] In an embodiment of the present application, the breast shield, the cover and the milk bowl are detachably connected in sequence along a first direction, milk flows through the breast shield, the cover and finally flows to the milk storage space along the first direction.

[0021] In an embodiment of the present application, the negative pressure assembly comprises a main housing and a negative pressure pump, and the negative pressure pump is arranged in the main housing.

[0022] The negative pressure assembly is detachably mounted on the milk storage container, and the negative pressure pump is in communication with the milk storage space; the negative pressure pump transmits negative pressure to the breast shield or the milk storage container through a diaphragm or an air bag.

[0023] Alternatively, the negative pressure pump is connected with the milk storage container through an air pipe, and transmits negative pressure to the breast shield or the milk storage container through a diaphragm or an air bag.

[0024] In an embodiment of the present application, the diaphragm or the air bag is integrally sealed and formed on the breast shield or the milk bowl.

[0025] The present application also provides a milk storage assembly, which comprises an assembly part and a milk storage container; the milk storage container forms a milk storage space with a milk inlet at one end, and the assembly part is detachably connected with the milk storage container and seals the milk inlet.

[0026] In an embodiment of the present application, the assembly part is a nipple, and the nipple covers the milk inlet.

[0027] In an embodiment of the present application, the assembly part comprises a sealing plug, and the sealing plug is inserted into the milk inlet; the milk storage assembly is used for storing milk.

[0028] In an embodiment of the present application, the milk storage container comprises a milk bowl and a cover, the cover covers the milk bowl and forms the milk storage space together with the milk bowl, the milk inlet is arranged on the surface of the cover, the assembly part is detachably connected with the milk inlet of the cover, and the milk inlet of the cover is also used for detachably connecting the breast shield.

[0029] In combination with the technical solutions described above, the breast pump provided by the present application has at least the following technical effects:

[0030] (1) Since the breast shield is detachably connected with the cover in the present application, the breast shield and the milk storage container are two separate structures, which facilitates the separate operation of the breast shield after the breast pump is completed. For example, after the breast pump is completed, the breast shield contaminated with milk can be separately removed from the milk storage container and cleaned; then the milk outlet container containing milk is stored, which reduces the step of pouring the milk in the milk storage space into a feeding bottle for storage in the prior art, and also facilitates the cleaning of the breast shield, thereby improving the convenience of use for users.

[0031] Alternatively, the breast shield can also be removed and cleaned separately, and the nipple is covered on the milk inlet of the milk outlet container, so that the milk storage container can be directly used for feeding milk to a child

[0032] Or, the breast shield is removed for separate cleaning, and a seal is used to seal the milk inlet, and the milk storage container containing milk is stored for subsequent feeding when needed.

[0033] (2) The milk storage container is designed to be at least partially shaped to match the bra, so that during the breast pumping process, the bra can have more contact area with the milk storage container, improving the support effect of the whole breast pump and the stability during breast pumping.

[0034] (3) The cover and the milk bowl are designed as an integral structure, so that the milk storage container is disposable after single use, and there is no need to clean the milk storage container after breast pumping, saving the user's time.

[0035] (4) The cover and the milk bowl are designed to be detachably connected by thread connection, interference fit, or other connection methods such as clamping, inserting, connecting, etc., so that after breast pumping, the milk bowl and the cover are removed, and the interior space of the milk storage container is cleaned, improving the convenience of cleaning the breast pump.

[0036] (5) A first nipple passage is provided on the breast shield, or a second nipple passage is provided on the cover, or a first nipple passage and a second nipple passage are respectively provided on the breast shield and the cover, so that during breast pumping, the nipple can be accommodated in the first nipple passage and / or the second nipple passage, to improve the comfort during breast pumping.

[0037] (6) The cover and the breast shield are designed to be detachably connected by thread connection, interference fit, etc., so that the user can remove and clean the breast shield after breast pumping.

[0038] (7) A fitting portion is provided on the cover, and the shape of the fitting portion is designed to match the milk outlet end of the breast shield, the milk outlet end is embedded in the fitting portion, and the fitting portion is interference fit, so that the cover and the breast shield have a larger contact area, improving the sealing effect between the cover and the breast shield.

[0039] (8) By providing a one-way valve, the milk is prevented from flowing from the milk inlet to the outside of the milk storage space, playing a one-way flow guiding role.

[0040] (9) The breast shield, the cover and the milk bowl are designed to be detachably connected in sequence along the first direction, forming an easy-to-assemble and disassemble structure, and at the same time, this design reduces the bending angle, making the milk flow more smoothly.

[0041] (10), the negative pressure generated by the negative pressure pump acts on the diaphragm or air bag, so that the diaphragm and air bag are deformed, and then a negative pressure is formed in the milk storage container, and the diaphragm and air bag are arranged to isolate milk, and keep the negative pressure assembly clean and safe.

[0042] (11), the diaphragm or air bag is designed to be integrally formed on the breast shield or milk bowl, which improves the assembly efficiency and avoids the problem of sealing failure of the internal space of the milk storage container due to assembly error of the diaphragm or air bag.

[0043] (12), by setting the nipple or sealing plug assembly, and setting the nipple cover in the milk inlet, so that the user can directly feed the child after completing the breast pumping using the milk storage container; or the sealing plug is plugged into the milk inlet, so that the user can store the milk storage container storing milk separately after completing the breast pumping, to avoid milk flow or contamination.

[0044] (13), the connection structure or connection mode between the milk storage container and the assembly is designed to be the same as the connection structure or connection mode between the breast shield, which can improve the applicability and compatibility of the milk storage container, and facilitate the user to quickly disassemble and assemble. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0046] Fig. 1 is a structural schematic diagram of an embodiment of the breast pump provided by the present application;

[0047] Fig. 2 is a sectional view of the breast pump along A-A in Fig. 1;

[0048] Fig. 3 is an exploded view of the breast pump in Fig. 1;

[0049] Fig. 4 is a structural schematic diagram of a first embodiment of the breast pump provided by the present application;

[0050] Fig. 5 is an exploded view of the breast pump in Fig. 4;

[0051] Fig. 6 is an exploded view of a second embodiment of the breast pump provided by the present application;

[0052] Fig. 7 is a structural schematic diagram of a third embodiment of the breast pump provided by the present application;

[0053] Fig. 8 is an exploded view of the breast pump in Fig. 7;

[0054] Fig. 9 is a structural schematic diagram of a fourth embodiment of the breast pump provided by the present application;

[0055] Fig. 10 is an exploded view of the breast pump of Fig. 9;

[0056] Fig. 11 is a schematic view of a fifth embodiment of a breast pump provided by the present application;

[0057] Fig. 12 is an exploded view of the breast pump of Fig. 11;

[0058] Fig. 13 is a schematic view of a sixth embodiment of a breast pump provided by the present application;

[0059] Fig. 14 is an exploded view of the breast pump of Fig. 13;

[0060] Fig. 15 is a schematic view of an embodiment of a milk storage assembly provided by the present application;

[0061] Fig. 16 is a schematic view of another embodiment of a milk storage assembly provided by the present application.

[0062] Brief Description of the Drawings:

[0063] 1. breast pump; 10. breast shield; 11. milk outlet; 12. first nipple passage; 13. milk outlet end; 20. milk storage container; 21. milk bowl; 211. compression portion; 212. first air passage; 22. cover; 221. milk inlet; 222. second nipple passage; 223. fitting portion; 224. second air passage; 23. milk storage space; 30. negative pressure assembly; 31. main housing; 32. negative pressure pump; 33. air tube; 40. one-way valve; 41. milk inlet end; 42. milk outlet end; 51. diaphragm support; 52. diaphragm barrier; 53. air inlet cylinder; 200. milk storage assembly; 201. nipple; 202. sealing plug.

[0064] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0066] It should be noted that if the present application involves 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 will also change accordingly.

[0067] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, "and / or" or "and / or" appears throughout the text, which 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 solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope claimed by the present application.

[0068] The present application provides a breast pump 1.

[0069] In combination with FIG. 1 to FIG. 3, in an embodiment of the present application, the breast pump 1 comprises a breast shield 10, a milk storage container 20 and a negative pressure assembly 30; one side of the breast shield 10 is used to cover the breast, and the other side is provided with a milk outlet 11; the milk storage container 20 comprises a milk bowl 21 and a cover 22, the cover 22 covers the milk bowl 21, and the cover 22 and the milk bowl 21 form a milk storage space 23, the surface of the cover 22 is provided with a milk inlet 221 communicating with the milk storage space 23; the negative pressure assembly 30 is used to directly or indirectly apply negative pressure to the breast shield 10 or the milk storage container 20 to suck the milk into the milk storage container 20; wherein the breast shield 10 and the cover 22 are detachably connected, and the milk outlet 11 and the milk inlet 221 are in liquid communication.

[0070] In the embodiment, the breast pump 1 mainly comprises three parts of the breast shield 10, the milk storage container 20 and the negative pressure assembly 30. The breast shield 10 is made of soft silica gel material, and its shape is designed as a horn or a funnel which is convenient to fit the contour of the breast, so as to ensure the comfort and airtightness in the process of milk pumping. One side of the breast shield 10 directly contacts with the breast, and the other side is provided with the milk outlet 11, which is designed as a structure easy to connect with the milk inlet 221 of the cover 22, so as to facilitate the assembly of the breast shield 10 and the cover 22 and the smooth flow of milk.

[0071] The cover 22 is detachably connected with the breast shield 10, for example, connected by screw thread, plug-in, clamping, etc., so as to facilitate cleaning of the breast shield 10 and storage of the milk storage container 20. The surface of the cover 22 is provided with a milk inlet 221 which is in communication with the milk storage space 23 and used for receiving the milk flowing out of the breast shield 10. In an embodiment of the present application, the milk inlet 221 is arranged at the middle position of the cover 22, and the milk outlet 11 of the breast shield 10 is also arranged at the middle position of the breast shield. Therefore, when the breast shield 10 and the cover 22 are connected and the milk inlet 221 is in communication with the milk outlet 11, the center lines of the breast shield 10 and the cover 22 are arranged in coincidence, so that when the breast shield 10 is attached to the breast, the milk storage container 20 is also matched with the bra, thereby improving the convenience during the breast pumping operation. The surface of the milk storage container 20 is provided with a scale, and the material of the milk bowl 21 at least at the scale is transparent or translucent, so that the user can determine the milk volume through the scale during the breast pumping process.

[0072] The negative pressure assembly 30 can be composed of a main housing 31 and a negative pressure pump 32, so as to automatically control the negative pressure pump 32 to generate negative pressure and complete breast pumping. Of course, the negative pressure assembly 30 can also be a manually pressed negative pressure structure, for example, a structure of a pressurized air bag, a pressure rod and a piston, which provides negative pressure during breast pumping by manual pressing. The communication mode of the negative pressure assembly 30 with the breast shield 10 or the milk storage container 20 includes direct communication or indirect communication. Specifically, the direct communication means that the negative pressure port of the negative pressure pump 32 is directly communicated to the internal space of the milk storage container 20 or the breast shield 10 through an air pipe, so as to suck the milk to flow out and store in the milk storage container. The indirect communication means that the negative pressure is indirectly transmitted to the milk storage container 20 or the breast shield 10 through the vibration or deformation of the gas-liquid separation piece of the negative pressure port of the negative pressure pump 32, so as to suck the milk to flow out and store in the milk storage container.

[0073] In addition, the negative pressure assembly 30 can be communicated to the breast shield 10 or the milk storage container 20 through a soft pipe with a certain distance, so as to be placed on the desktop during breast pumping, reduce the weight of the structure worn in the bra, and improve the user experience. The negative pressure assembly 30 can also be directly installed on the breast shield 10 or the milk storage container 20, so as to be controlled or adjusted by the user. In addition, the negative pressure assembly 30 further includes a control panel, which allows the user to adjust the suction force according to personal comfort, so as to ensure efficient and gentle breast pumping during the breast pumping process.

[0074] In the embodiment, since the milk storage space 23 of the breast pump 1 is formed by the milk bowl 21 and the cover 22, and the breast shield 10 is detachably connected with the cover 22, the breast shield 10 contaminated by milk can be detached from the milk storage container 20 and cleaned, and then the milk storage container 20 containing milk is stored, thereby reducing the step of pouring the milk in the milk storage space 23 into a feeding bottle for storage, facilitating the cleaning of the breast shield 10, and improving the convenience of use.

[0075] Since the sizes of breasts of different users are different or change in different stages, there is a gap between the breast and the breast shield 10, and therefore the same type of breast shield 10 cannot meet the needs of different users or different stages of a user. Since the breast shield 10 and the milk bowl 21 need to form the milk storage space 23, when the breast shield 10 of a different type is replaced, the connection between the breast shield 10 and the milk bowl 21 is affected. Therefore, the milk storage space 23 is designed by the milk bowl 21 and the cover 22 in the application, when a user needs to adjust the structure of the breast shield 10, since the breast shield 10 does not form the milk storage space 23, the influence on the structure of the milk storage space 23 is reduced, that is, the milk storage container 20 can be adapted to the breast shield 10 of different sizes, thereby facilitating the user to replace different breast shields 10 according to their own needs.

[0076] In addition, when a user needs to feed milk, the breast shield 10 contaminated by milk can be detached from the milk storage container 20, and the nipple 201 is covered on the milk inlet 221 to feed milk, and then the breast shield 10 contaminated by milk is cleaned separately, without the need to pour the milk in the milk storage container 20 into a feeding bottle, thereby improving the convenience of the breast pump 1 after pumping milk. In an embodiment of the application, the milk storage container 20 is designed to be at least partially adapted to a bra, so that the breast pump 1 can be stably worn in the bra. It can be understood that the milk storage container 20 designed to be worn in the bra does not mean that the milk storage container 20 must be completely inside the bra, but means that it is designed to be at least partially adapted to and worn in the bra, so that the shape of the milk storage container 20 can be arc-shaped, drop-shaped or generally hemispherical.

[0077] In an embodiment of the application, the cover 22 and the milk bowl 21 can be an integral structure, at this time the milk storage container 20 is a disposable container, which is connected to the breast shield 10 when pumping milk, and is discarded after pumping milk, without the need to disassemble the cover 22 and the milk bowl 21, and without the need to clean the milk storage container, thereby improving the convenience of use.

[0078] In another embodiment, the cover 22 and the milk bowl 21 can also be detachably connected, such as threaded connection, interference fit connection, clamping, etc., so that the user can separate the cover 22 and the milk bowl 21 after the breast pumping is completed, and clean the inside of the milk storage container 20.

[0079] In combination with FIGS. 2 and 3, in an embodiment of the present application, the breast shield 10 extends towards the cover 22 and forms a first nipple passage 12, one end of the first nipple passage 12 is provided with a milk outlet 11, and the first nipple passage 12 is used to accommodate the nipple.

[0080] In this embodiment, the first nipple passage 12 is designed on one side of the shield, which extends from the inside of the shield to the milk outlet 11, forming a straight passage. As shown in FIGS. 2 and 3, the breast shield 10 extends towards the cover 22 and forms a tubular structure with the first nipple passage 12 inside. At this time, the milk outlet 11 of the first nipple passage 12 can coincide with the milk inlet 221 of the cover 22, or the first nipple passage 12 can be inserted into the milk inlet 221 of the cover 22, that is, the milk inlet 221 is located on the side of the milk outlet 11 away from the milk bowl 21.

[0081] In an embodiment of the present application, as shown in FIG. 2, the first nipple passage 12 is designed to be inclined towards the bottom of the milk bowl 21, further improving the convenience of milk flowing into the milk storage container 20.

[0082] During breast pumping, the first nipple passage 12 is used to accommodate the nipple to ensure that the milk can smoothly pass through the first nipple passage 12, the milk outlet 11, and finally flow into the milk storage container 20. The inner wall of the first nipple passage 12 is made of soft medical-grade silicone material to reduce friction and discomfort to the nipple, while providing good sealing to prevent air from entering. The diameter of the first nipple passage 12 is designed to be larger than the size of most nipples to ensure the comfort of the nipple during breast pumping.

[0083] In combination with FIGS. 2 and 3, in an embodiment of the present application, the cover 22 extends away from the breast shield 10 and forms a second nipple passage 222, one end of the second nipple passage 222 away from the breast shield 10 is provided with a milk inlet 221, the milk outlet 11 communicates with the second nipple passage 222, and the second nipple passage 222 is used to accommodate the nipple.

[0084] In the present embodiment, the cover 22 extends towards the direction away from the breast shield 10 to form a second nipple passage 222. As shown in FIG. 2 and FIG. 3, the outer peripheral wall of the cover 22 extending towards the direction away from the breast shield 10 forms a tubular structure with the second nipple passage 222 inside. Therefore, when the breast is attached to the breast shield 10 for milk extraction, the nipple passes through the milk outlet 11 of the breast shield 10 and extends into the second nipple passage 222 to ensure that the milk can flow smoothly through the second nipple passage 222, the milk inlet 221 and finally into the milk storage container 20.

[0085] In an embodiment of the present application, as shown in FIG. 2, the milk inlet 221 of the cover 22 is arranged at a position close to the bottom wall of the second nipple passage 222, and the second nipple passage 222 is designed to be inclined towards the bottom of the milk bowl 21, further improving the convenience of milk flowing into the milk storage container 20. The inner wall of the second nipple passage 222 is made of soft medical-grade silicone material to reduce friction and discomfort to the nipple, while providing good sealing to prevent air from entering. The diameter of the second nipple passage 222 is designed to be larger than the size of most nipples to ensure the comfort of the nipple during milk extraction. In order to ensure the stability of the connection between the second nipple passage 222 and the breast shield 10, an annular protruding structure is designed on the inner wall of the second nipple passage 222 towards the breast shield 10 side, which tightly fits with the corresponding part of the breast shield 10 to ensure that there is no air leakage during milk extraction. In addition, the annular protruding structure can also buffer the negative pressure generated during milk extraction to some extent, protecting the nipple from damage.

[0086] In combination with FIG. 2 and FIG. 3, in an embodiment of the present application, the breast shield 10 extends towards the direction close to the cover 22 to form a first nipple passage 12, and the cover 22 extends towards the direction away from the breast shield 10 to form a second nipple passage 222, the first nipple passage 12 and the second nipple passage 222 at least partially overlap, and the first nipple passage 12 and the second nipple passage 222 both at least partially accommodate the nipple.

[0087] In the embodiment, the specific structure of the first nipple channel 12 and the second nipple channel 222 can refer to the description of the above embodiments, which will not be further described. In the embodiment, the first nipple channel 12 and the second nipple channel 222 are provided at the same time, the inner diameter of the first nipple channel 12 is designed to be slightly smaller than the inner diameter of the second nipple channel 222, and the first nipple channel 12 is at least partially embedded in the second nipple channel 222. The structure design increases the contact area between the breast shield 10 and the cover 22, improves the connection strength and sealing effect of the two, and avoids the milk flowing from the gap between the second nipple channel 222 and the first nipple channel 12 to the outside of the breast pump 1. At the same time, the first nipple channel 12 and the second nipple channel 222 are both inclined towards the bottom of the milk bowl 21 to improve the smoothness of the milk flowing to the milk storage container 20. A buffer structure is provided at the intersection of the first nipple channel 12 and the second nipple channel 222, which is made of soft silica gel material, such as a silica gel sealing ring, to ensure the sealing effect during the breast pumping process.

[0088] In combination with FIG. 3, in an embodiment of the present application, the cover 22 is recessed towards the milk storage space 23 to form a fitting portion 223, the fitting portion 223 is at least partially compatible with the shape of the breast shield 10, and the material of the fitting portion 223 is hard plastic. The breast shield 10 is embedded in the fitting portion 223 and is attached to the cover 22.

[0089] In the embodiment, as known from the above, the breast shield 10 has a shape of a horn or a funnel, and therefore the fitting portion 223 recessed on the cover 22 also has a shape of a horn or a funnel, so that the fitting portion 223 is compatible with the shape of the breast shield 10. The size of the fitting portion 223 can be the same as that of the breast shield 10, so that the two are completely attached. Alternatively, the size of the fitting portion 223 can be designed to be smaller than that of the breast shield 10, so that the breast shield 10 is partially embedded in the fitting portion 223. The breast shield 10 exposed outside the fitting portion 223 can prevent the milk from entering the fitting portion 223, thereby avoiding the fitting portion 223 from being contaminated by the milk and reducing the cleaning workload.

[0090] In the process of breast pumping, the breast shield 10 is made of flexible material, and the breast shield 10 is in contact with the breast to improve the comfort during breast pumping. The cover 22 is not used to contact the breast, so the fitting part 223 of the cover 22 is made of hard plastic to make the fitting part 223 have better structural strength when the end of the breast shield 10 is embedded in the fitting part 223. The fitting part 223 can press the breast shield 10, and then realize the close fit between the breast shield 10 and the fitting part 223, thereby improving the sealing effect between the breast shield 10 and the cover 22. At the same time, since the fitting part 223 has good structural strength, the user can use greater force to embed the breast shield 10 into the fitting part 223, so that the breast pump 1 has high reliability. It can be understood that the fitting part 223 can also be made of metal or other hard materials.

[0091] The design of the fitting part 223 improves the contact area between the cover 22 and the breast shield 10, and further improves the sealing effect between the cover 22 and the breast shield 10, so as to ensure that the milk does not leak during breast pumping, and improve the practicability and hygiene of the entire breast pump 1.

[0092] In combination with FIG. 3, in an embodiment of the present application, the breast shield 10 is provided with a milk outlet 11, and one end of the milk outlet 11 is a milk outlet end 13. The milk outlet end 13 is in interference fit with the fitting part 223 of the cover 22.

[0093] In this embodiment, the milk outlet end 13 and the fitting part 223 are connected to the cover 22 in a detachable manner by interference fit, that is, the close connection is realized by slight elastic deformation. This connection method not only ensures the firmness of the connection and the sealing effect between the breast shield 10 and the cover 22, but also facilitates the user to quickly disassemble and clean when needed.

[0094] In order to further improve the sealing effect, a series of elastic flanges are designed on the outer periphery of the milk outlet end 13 of the breast shield 10. These flanges are made of soft silicone material and can be elastically deformed when the user embeds the milk outlet end 13 into the fitting part 223, and tightly fit with the inner surface of the fitting part 223 to form a good sealing effect. In order to further improve the stability of the connection, a locking structure is provided between the fitting part 223 of the cover 22 and the breast shield 10. The structure includes an annular groove and a movable locking piece. When the milk outlet end 13 is embedded in the fitting part 223, the locking piece will automatically slide into the groove, and the breast shield 10 is firmly locked on the cover 22. The locking piece is made of high-strength plastic material to ensure the reliability of the connection.

[0095] In other embodiments, the breast shield 10 and the cover 22 can be connected by thread connection, fastener connection, clamping, etc. For example, in an embodiment, the outer periphery of the milk outlet end 13 of the breast shield 10 is provided with external threads, and the inner wall of the abutting portion 223 of the cover 22 is provided with internal threads. The breast shield 10 is rotated to threadedly connect the milk outlet end 13 and the abutting portion 223. This connection can improve the connection strength between the cover 22 and the breast shield 10. At least part of the thread connection between the milk outlet end 13 and the abutting portion 223 is an elastic structure, or a sealing ring is provided to ensure the sealing effect of the cover 22 and the breast shield 10.

[0096] In combination with FIGS. 2 and 3, in an embodiment of the present application, the side of the cover 22 away from the breast shield 10 is embedded in the milk bowl 21 and is in interference fit with the milk bowl 21.

[0097] In this embodiment, the cover 22 and the milk bowl 21 are designed to be detachably connected, so that the user can clean the inside of the milk storage space 23 after use. Specifically, the side of the cover 22 away from the breast shield 10 is embedded in the milk bowl 21 and is connected to the milk bowl 21 in interference fit. This structure design not only ensures the structural stability of the milk storage container 20, but also facilitates the user to easily detach the cover 22 when cleaning, thereby improving the cleaning convenience of the milk storage container 20.

[0098] The interference fit depends on the size matching between the cover 22 and the milk bowl 21. In order to facilitate the sealing and assembly between the cover 22 and the milk bowl 21, a series of elastic flanges are designed on the outer edge of the cover 22. These flanges can be elastically deformed during assembly, so that the cover 22 is tightly embedded and interference fitted with the milk bowl 21. The size of the end of the cover 22 away from the milk bowl 21 is greater than the size of the opening of the milk bowl 21, so that after the cover 22 is interference fitted with the milk bowl 21, the cover 22 covers the opening of the milk bowl 21, further improving the sealing effect of the milk storage space 23. In order to further improve the stability of the connection, a locking structure such as a threaded hole and a threaded connecting piece, or a clamping groove and a clamping protrusion, etc. can be provided between the milk bowl 21 and the cover 22. When the cover 22 is embedded in the milk bowl 21, the cover 22 and the milk bowl 21 are secondarily locked and connected by the locking structure to ensure the reliability of the connection.

[0099] In combination with FIG. 3, in an embodiment of the present application, the breast pump 1 further comprises a one-way valve 40, which comprises a milk inlet end 41 and a milk outlet end 42. The milk inlet end 41 communicates with the milk inlet 221, and at least the milk outlet end 42 is arranged in the milk storage space 23.

[0100] In the embodiment, the one-way valve 40 has the function of one-way flow guide, the flow guide direction is from the milk inlet end 41 to the milk outlet end 42, which can prevent the milk from flowing out from the milk inlet 221 to the outside of the milk storage space 23 under the condition of ensuring that the milk can flow from the milk inlet 221 to the milk storage space 23, so as to avoid the backflow of the milk. The one-way valve 40 can be arranged in the milk storage space 23 as a whole, and the milk inlet end 41 is arranged opposite to the milk inlet 221; or only the milk outlet end 42 of the one-way valve 40 passes through the milk inlet 221 and is arranged in the milk storage space 23, and the rest of the one-way valve 40 is arranged outside the milk storage space 23. It can be understood that the position design of the one-way valve 40 which can realize one-way flow guide of the milk storage container 20 belongs to the protection scope of the application.

[0101] The one-way valve 40 and the cover 22 are detachably connected or integrally formed. When the one-way valve 40 and the cover 22 are detachably connected, in order to further improve the sealing effect between the one-way valve 40 and the cover 22, a sealing ring is sleeved on the outer periphery of the one-way valve 40, and the sealing ring is in interference fit with the cover 22 and the one-way valve 40, so as to ensure that the milk storage container 20 has good sealing effect during the breast pumping process.

[0102] In combination with FIGS. 2 and 3, in an embodiment of the application, the breast shield 10, the cover 22 and the milk bowl 21 are detachably connected in sequence along a first direction, and the milk flows through the breast shield 10, the cover 22 and finally flows to the milk storage space 23 along the first direction.

[0103] In the embodiment, the first direction is the direction along the X axis in the three-dimensional coordinate system as defined in FIG. 3. These components are detachably connected in sequence along the same direction, forming a structure which is easy to assemble and disassemble. At the same time, the milk also flows through the breast shield 10, the cover 22 and finally flows to the milk storage space 23 along the same direction. This design reduces the bending angle, making the cleaning and maintenance of the whole breast pump 1 more convenient, and also improves the efficiency of milk flow guide. The specific connection mode of the breast shield 10 and the cover 22, and the cover 22 and the milk bowl 21 can refer to the introduction of the above-mentioned embodiments, which will not be further described here.

[0104] In combination with FIGS. 1 to 3, in an embodiment of the application, the negative pressure assembly 30 includes a main housing 31 and a negative pressure pump 32, and the negative pressure pump 32 is arranged in the main housing 31; the negative pressure assembly 30 is detachably mounted on the milk storage container 20, and the negative pressure pump 32 communicates with the milk storage space 23; the negative pressure pump 32 transmits negative pressure to the breast shield 10 or the milk storage container 20 through a diaphragm or an air bag; or, the negative pressure pump 32 is connected with the milk storage space 23 through an air tube 33, and transmits negative pressure to the breast shield 10 or the milk storage container 20 through a diaphragm or an air bag.

[0105] In the embodiment, the negative pressure assembly 30 further comprises a circuit control board and a display panel. The circuit control board is arranged in the main housing 31 and is in communication connection with the negative pressure pump 32. The display panel is arranged on the outer surface of the main housing 31 and is used for controlling and adjusting the negative pressure pump 32. The negative pressure assembly 30 can be detachably mounted on the milk storage container 20, for example, as shown in FIG. 2, the negative pressure assembly 30 is mounted on the milk bowl 21, and the connection mode can be threaded connection or clamping, etc. The negative pressure assembly 30 can also be designed as a separate structure from the milk storage container 20, and the negative pressure pump 32 is in communication with the milk storage space 23 through the air pipe 33. This design facilitates the placement of the negative pressure assembly 30 on the desktop to reduce the wearing weight.

[0106] In an embodiment of the present application, the communication mode of the negative pressure pump 32 with the milk storage container 20 or the breast shield 10 has three modes:

[0107] 1. Directly plug the negative pressure pump 32 into the breast shield 10 or the milk storage container 20;

[0108] 2. A diaphragm blocking piece 52, such as a diaphragm or an air bag, is arranged at the negative pressure port of the negative pressure pump 32, as shown in FIGS. 2 and 3. The cover 22 is embedded in the outer side of the end portion of the milk bowl 21 and is provided with a diaphragm support 51. The diaphragm blocking piece 52 is mounted on the diaphragm support 51. The diaphragm blocking piece 52 is an air bag, which separates the negative pressure pump 32 and the milk storage space 23, so as to avoid the milk in the milk storage space 23 being sucked into the negative pressure pump 32 or the pipeline. Since the air bag is an elastic structure, the negative pressure generated by the negative pressure pump 32 will cause the air bag to deform, thereby forming a negative pressure environment in the milk storage space 23.

[0109] In an embodiment of the present application, as shown in FIG. 2, a first air guide hole 212 is formed on the milk bowl 21, and a second air guide hole 224 is formed on the end of the cover 22 embedded in the milk storage space 23, penetrating the diaphragm support 51 and the cover 22. The air bag is embedded in the diaphragm support 51 and adheres to the inner wall of the diaphragm support 51, so that the air bag blocks the second air guide hole 224. At the same time, a pressing part 211 is protruded on the inner wall of the milk bowl 21 towards the diaphragm support 51 of the cover 22, and the pressing part 211 presses against the inner wall of the air bag. Therefore, under the clamping of the pressing part 211 and the diaphragm support 51, the air bag seals the second air guide hole 224 of the cover 22. The negative pressure pump 32 is connected to the first air guide hole 212 through a pipeline. When the negative pressure pump 32 works, the suction force generated by the negative pressure pump 32 passes through the first air guide hole 212 to suck the air bag to deform towards the first air guide hole 212, so that the air bag sucks the gas in the milk storage space 23 through the second air guide hole 224 and the second nipple channel 222, so that the milk storage space 23 is in a negative pressure state, and the milk is sucked into the milk storage space 23 from the breast shield 10. Of course, the diaphragm barrier 52 can also be made of a material that is air-permeable and liquid-impermeable, and is arranged between the negative pressure pump 32 and the milk storage container 20, which can ensure that the negative pressure is formed in the milk storage space 23 and prevent the milk from flowing back to the negative pressure pump 32.

[0110] 3. The gas pipe 33 is connected to the negative pressure port of the negative pressure pump 32, and the other end of the gas pipe 33 is provided with a diaphragm barrier 52. The negative pressure is applied to the diaphragm barrier 52 to exert negative pressure on the milk storage container 20 or the breast shield 10.

[0111] In order to further improve the intelligent degree of the breast pump 1, an intelligent control system is added in the design of the main machine shell 31. The system can monitor the output of the negative pressure in real time and display it through the display screen on the outside of the main machine shell 31. The user can adjust the size of the negative pressure according to the needs to realize personalized breast pumping experience.

[0112] The present application provides a wearable breast pump 1, which solves the problem that the existing milk bowl 21 and breast shield 10 jointly enclose the milk storage space 23, which is not convenient for users to use. The breast pump 1 is not limited to the structure design described in the above embodiments. The specific structure of the negative pressure assembly 30, the diaphragm barrier 52, and the mounting method of each part of the breast pump 1 are further described in the following six different embodiments to further illustrate the technical concept of the present application.

[0113] First embodiment:

[0114] As shown in FIG. 4 and FIG. 5, the negative pressure assembly 30 is installed above the milk bowl 21 and combined with the milk bowl 21 to form a semi-spherical structure for wearing in a bra. A diaphragm support 51 and an air inlet cylinder 53 are arranged between the milk bowl 21 and the negative pressure assembly 30, wherein the air inlet cylinder 53 is embedded in the first air guide hole 212 of the milk bowl 21, the diaphragm support 51 is provided with an air pipe 33, and the negative pressure pump 32 in the negative pressure assembly 30 is in communication with the air inlet cylinder 53 through the air pipe 33 arranged on the diaphragm support 51. A diaphragm barrier 52 is arranged between the milk bowl 21 and the air inlet cylinder 53 and encloses the negative pressure cavity with the air inlet cylinder 53. When pumping milk is needed, the negative pressure generated by the negative pressure pump 32 passes through the diaphragm barrier 52, the air pipe 33, and the air inlet cylinder 53 to suck the negative pressure cavity enclosed by the diaphragm barrier 52 and the air inlet cylinder 53. The diaphragm barrier 52 is made of a deformable material, such as an elastic air bag, which deforms under the action of negative pressure, thereby causing the storage space 23 enclosed by the cover 22 and the milk bowl 21 to form a negative pressure. When pumping milk, the milk water passes through the breast shield 10 and the cover 22 in a horizontal direction, and then flows into the storage space 23 in a vertical direction through the one-way valve 40.

[0115] Second embodiment:

[0116] As shown in FIG. 6, the negative pressure assembly 30 includes a main housing 31, a negative pressure pump 32, and an air pipe 33. The negative pressure pump 32 is arranged in the main housing 31 and in communication with one end of the air pipe 33. The outer side of the milk bowl 21 is provided with a pipeline joint in communication with the storage space 23, and the other end of the air pipe 33 is used to detachably communicate with the pipeline joint to realize the communication between the negative pressure pump 32 and the storage space 23. A gas-permeable membrane is arranged inside the pipeline joint, which can permeate gas and block liquid to realize the negative pressure pump 32 providing negative pressure for the storage space 23 while preventing the milk water in the storage space 23 from flowing back to the air pipe 33. Of course, a diaphragm barrier 52 can also be arranged inside the milk bowl 21 to block the pipeline joint and the storage space 23. The diaphragm barrier 52 is deformed by the negative pressure pump 32 to cause the storage space 23 to form a negative pressure.

[0117] The milk bowl 21 is semi-spherical in shape to facilitate wearing in a bra. The cover 22 is connected to the milk bowl 21 and encloses the storage space 23. The breast shield 10 is detachably embedded on the side of the cover 22 away from the milk bowl 21. When pumping milk, the milk water passes through the breast shield 10 and the cover 22 in a horizontal direction, and then flows into the storage space 23 in a vertical direction through the one-way valve 40.

[0118] Third embodiment:

[0119] As shown in FIG. 7 and FIG. 8, the negative pressure assembly 30 is combined with the milk bowl 21 to form a semi-spherical structure to facilitate wearing in a bra. The side of the milk bowl 21 facing the negative pressure assembly 30 is provided with a pipe, and a first air guide hole 212 is formed in the pipe. The diaphragm blocking piece 52 is an elastic air bag and is arranged between the first air guide hole 212 and the milk storage space 23. The elastic air bag is sucked by the negative pressure pump 32 to deform, thereby forming negative pressure in the milk storage space 23. The cover 22 is arranged on the milk bowl 21, and the breast shield 10 is detachably connected to the side of the cover 22 away from the milk bowl 21. When pumping milk, the milk flows through the breast shield 10, the cover 22, and then the one-way valve 40 in a vertical direction to the milk storage space 23.

[0120] Fourth embodiment:

[0121] As shown in FIG. 9 and FIG. 10, the milk bowl 21 is a semi-spherical structure to facilitate wearing in a bra. The negative pressure assembly 30 includes a main machine shell 31, a negative pressure pump 32, and an air pipe 33. The negative pressure pump 32 is arranged inside the main machine shell 31 and communicates with the air pipe 33. The other end of the air pipe 33 communicates with the first air guide hole 212 formed in the surface of the milk bowl 21. The side of the cover 22 is provided with a diaphragm support 51, and the surface of the cover 22 is also provided with a second air guide hole 224 communicating with the milk storage space 23. The diaphragm blocking piece 52 is arranged inside the milk bowl 21. The diaphragm blocking piece 52 can be an elastic air bag, which is embedded in the diaphragm support 51 and located between the first air guide hole 212 and the second air guide hole 224. The negative pressure pump 32 sucks the elastic air bag through the first air guide hole 212 to deform, thereby forming negative pressure in the milk storage space 23. When pumping milk, the milk flows through the breast shield 10, the cover 22, and then the one-way valve 40 in a vertical direction to the milk storage space 23.

[0122] Fifth embodiment:

[0123] As shown in FIG. 11 and FIG. 12, on the basis of the fourth embodiment, two air pipes 33 are arranged, and the two air pipes 33 communicate with the same negative pressure pump 32. The milk storage container 20 and the breast shield 10 are both provided with two, and the two milk storage containers 20 respectively communicate with the two air pipes 33. Therefore, the two milk storage containers 20 and the breast shield 10 can be controlled by the negative pressure assembly 30 to pump milk from the two breasts at the same time. In an embodiment of the present application, the negative pressure assembly 30 further includes an air path switching structure arranged between the two air pipes 33 and the negative pressure pump 32. The two air pipes 33 communicate with the negative pressure pump 32 through the air path switching structure. The air path switching structure can switch different air pipes 33 to communicate with the negative pressure pump 32, thereby realizing the effect of pumping milk from a single or two breasts.

[0124] Sixth embodiment:

[0125] As shown in FIG. 13 and FIG. 14, the milk bowl 21 and the negative pressure assembly 30 are combined to form a semi-spherical structure, which is convenient to wear in a bra. Different from the above-mentioned embodiments, in the present embodiment, the milk bowl 21 is located above the negative pressure assembly 30. A diaphragm barrier 52 is arranged between the negative pressure pump 32 and the first air guide hole 212 of the milk bowl 21. The diaphragm barrier 52 is an elastic air bag. The elastic air bag is deformed by suction of the negative pressure pump 32, so that the negative pressure is formed in the milk storage space 23. In the present embodiment, when the breast milk is sucked, the breast milk flows in the horizontal direction, sequentially passes through the breast shield 10 and the cover 22, and finally flows into the milk storage space 23.

[0126] It can be understood that the above-mentioned embodiments are all part of the embodiments listed based on the technical concept of the present application that the cover 22 and the milk bowl 21 enclose the milk storage space 23, for different positions, shapes and matching relationships of the components of the breast pump 1. The breast pump 1 proposed in the present application is not limited to the structural features described in the above-mentioned embodiments. As long as the technical solutions of the technical concept of the present application are adopted, they all belong to the protection scope of the present application.

[0127] The present application also proposes a milk storage assembly 200, which comprises an assembly part and a milk storage container 20. The specific structure of the milk storage container 20 is referred to the above-mentioned embodiments. Since the milk storage assembly 200 adopts all the technical solutions of all the embodiments of the above-mentioned milk storage container 20, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. In an embodiment of the present application, the milk storage container 20 forms a milk storage space 23 with a milk inlet 221 at one end, and the assembly part is detachably connected with the milk storage container 20 and seals the milk inlet 221, as shown in FIG. 15 and FIG. 16.

[0128] In the present embodiment, the assembly part can be a nipple 201 or a sealing plug 202, which is detachably connected with the milk storage container 20 and seals the milk inlet 221. This design makes the milk storage assembly 200 not only be used for feeding milk, but also be used for storing breast milk, which provides more use scenarios.

[0129] Therefore, the milk storage container 20 in the present application can be used as a component of the breast pump 1, which cooperates with the breast shield 10 and the negative pressure assembly 30 to perform breast milk suction, and can also be used as a component of the milk storage assembly 200, which cooperates with the assembly part to be used as a container for storing breast milk or feeding milk, thereby improving the utilization rate of the milk storage container 20.

[0130] In combination with FIG. 15, in an embodiment of the present application, the assembly part is a nipple 201, the nipple 201 is covered on the milk inlet 221, after the milk suction is completed, the milk storage assembly 200 can be used for directly feeding milk, and the convenience of feeding milk is improved. The nipple 201 is connected to the side of the milk storage container 20 which is provided with the milk inlet 221. Specifically, the nipple 201 has a certain elasticity, and the nipple 201 can be sleeved on the milk storage container 20; or one end of the nipple 201 is inserted into the milk inlet 221 of the milk storage container 20 and is in interference fit with the milk storage container 20; or the nipple 201 and the milk storage container 20 are detachably connected through a connecting piece, and the connecting piece can be an elastic clip, a buckle or the like.

[0131] In combination with FIG. 16, in an embodiment of the present application, the assembly part includes a sealing plug 202, the sealing plug 202 is inserted into the milk inlet 221, and the milk storage assembly 200 is used for storing milk.

[0132] In the embodiment, after the breast pump 1 completes the milk suction, the breast shield 10 is separated from the cover 22, then the sealing plug 202 is inserted into the milk inlet 221 and blocks the milk storage space 23, so that the milk storage assembly 200 can be used for storing milk. The sealing plug 202 ensures that the milk can be sealed and stored, and prevents leakage and pollution of the milk.

[0133] The part of the sealing plug 202 inserted into the milk inlet 221 is made of elastic material, and the size of the inserted end is slightly larger than the inner diameter of the milk inlet 221, so that after the sealing plug 202 is inserted into the milk inlet 221, the sealing plug 202 is tightly matched with the edge of the milk inlet 221 of the milk storage container 20, forming a first seal. The outer periphery of the sealing plug 202 further protrudes a secondary sealing ring, and when the inserted end is inserted into the milk inlet 221, the secondary sealing ring is tightly abutted with the outer surface of the cover 22, forming a second seal. The two-stage sealing structure ensures the sealing of the milk in the milk storage space 23.

[0134] In order to facilitate the user to use, the assembly part further includes a handle structure arranged at the end of the sealing plug 202 away from the milk storage container 20, which is easy to grip. So that the user can obtain better grip feeling and operation convenience when inserting or dismounting the sealing plug 202.

[0135] In combination with FIG. 15 and FIG. 16, in an embodiment of the present application, the milk storage container 20 includes a milk bowl 21 and a cover 22, the cover 22 is covered on the milk bowl 21 and forms a milk storage space 23 together with the milk bowl 21, the milk inlet 221 is arranged on the surface of the cover 22, the assembly part is detachably connected with the milk inlet 221 of the cover 22, and the milk inlet 221 of the cover 22 is also used for detachably connecting the breast shield 10.

[0136] In the present embodiment, since the milk storage container 20 is used for connecting the breast shield 10 to realize the function of milk pumping and is also used for connecting the assembly to realize the function of milk storage. Therefore, the present application designs the connecting structure or connecting mode of the milk storage container 20 and the assembly to be the same as that of the breast shield 10. For example, when the breast shield 10 is connected to the cover 22 by inserting the end into the milk inlet of the cover 22 to realize the interference fit therebetween, the assembly is also designed to have a shape suitable for the milk inlet of the cover 22 and is inserted into the milk inlet to realize the interference fit therebetween. When the breast shield 10 is connected to the cover 22 by the clamping hooks, the assembly is also designed to have the clamping hooks and is connected to the cover 22 by the clamping hooks. The above structure design can improve the applicability and compatibility of the milk storage container 20 and facilitates the quick disassembly and assembly of the user.

[0137] 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, wherein, The breast pump comprises: a breast shield, one side of which is used to cover the breast, and the other side of which is provided with a milk outlet; a milk storage container, which comprises a milk bowl and a cover, the cover being arranged on the milk bowl and surrounding the milk bowl to form a milk storage space, the cover being provided with a milk inlet communicating with the milk storage space; and a negative pressure assembly, which is used to directly or indirectly apply negative pressure to the breast shield or the milk storage container to suck the milk into the milk storage container. The breast shield and the cover are detachably connected, and the milk outlet and the milk inlet are in liquid communication.

2. The breast pump of claim 1, wherein, The milk storage container is at least partially shaped to match a bra.

3. The breast pump of claim 1, wherein, The cover and the milk bowl are integrally formed.

4. The breast pump of claim 1, wherein, The cover and the milk bowl are detachably connected.

5. The breast pump of claim 1, wherein, The breast shield extends towards the cover and is provided with a first nipple passage, one end of the first nipple passage being provided with the milk outlet, and the first nipple passage being used to accommodate the nipple.

6. The breast pump of claim 1, wherein, The cover extends away from the breast shield and is provided with a second nipple passage, one end of the second nipple passage away from the breast shield being provided with the milk inlet, the milk outlet being in communication with the second nipple passage, and the second nipple passage being used to accommodate the nipple.

7. The breast pump of claim 1, wherein, The breast shield extends towards the cover and is provided with a first nipple passage, the cover extending away from the breast shield and being provided with a second nipple passage, the first nipple passage and the second nipple passage at least partially overlapping, and the first nipple passage and the second nipple passage both at least partially accommodating the nipple.

8. The breast pump of any one of claims 1 to 7, wherein, The cover is recessed towards the milk storage space to form a fitting part, the fitting part being at least partially shaped to match the breast shield, the fitting part being made of hard plastic, the breast shield being embedded in the fitting part and being fitted with the fitting part of the cover.

9. The breast pump of claim 8, wherein, The breast shield is provided with the milk outlet at one end, and the end is in interference fit with the fitting part of the cover.

10. The breast pump of any one of claims 1 to 7, wherein, The breast shield and the cover are threadedly sealed.

11. The breast pump of any one of claims 4 to 7, wherein, The side of the cover away from the breast shield is embedded in the milk bowl and is in interference fit with the milk bowl.

12. The breast pump of any one of claims 1 to 7, wherein, The breast pump further comprises a one-way valve, which comprises a milk inlet end and a milk outlet end, the milk inlet end being in communication with the milk inlet, and at least the milk outlet end being arranged in the milk storage space.

13. The breast pump of any one of claims 1 to 7, wherein, The breast shield, the cover and the milk bowl are detachably connected in sequence along a first direction, and milk flows through the breast shield, the cover and finally to the milk storage space along the first direction.

14. The breast pump of any one of claims 1 to 7, wherein, The negative pressure assembly comprises a main housing and a negative pressure pump, the negative pressure pump being arranged in the main housing. The negative pressure assembly is detachably mounted on the milk storage container, the negative pressure pump being in communication with the milk storage space, and the negative pressure pump transmitting negative pressure to the breast shield or the milk storage container through a diaphragm or an air bag. Alternatively, the negative pressure pump is connected to the milk storage container through an air tube and transmits negative pressure to the breast shield or the milk storage container through a diaphragm or an air bag.

15. The breast pump of claim 14, wherein, The diaphragm or the air bag is integrally sealed and formed on the breast shield or the milk bowl.

16. A milk storage assembly, wherein, The milk storage assembly comprises an assembling part and a milk storage container; the milk storage container is formed with a milk storage space with a milk inlet at one end; the assembling part is detachably connected with the milk storage container and seals the milk inlet.

17. The milk storage assembly of claim 16, wherein, The assembling part is a nipple, which covers the milk inlet.

18. The milk storage assembly of claim 16, wherein, The assembling part comprises a sealing plug, which is inserted into the milk inlet; the milk storage assembly is used for storing milk.

19. The milk storage assembly of any one of claims 16 to 18, wherein, The milk storage container comprises a milk bowl and a cover, which covers the milk bowl and forms the milk storage space together with the milk bowl; the milk inlet is formed on the surface of the cover; the assembling part is detachably connected with the milk inlet of the cover; the milk inlet of the cover is also used for detachably connecting a breast shield.

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