Breast pump

Abstract

The application relates to a breast pump, which comprises a horn cover, a suction bowl, a milk storage assembly and a main machine assembly, the main machine assembly is clamped between the horn cover and the milk storage assembly; the horn cover is provided with a first accommodating cavity and a second accommodating cavity extending towards the milk storage assembly, the first accommodating cavity and the second accommodating cavity are communicated; the first accommodating cavity is used for accommodating a nipple, and the first accommodating cavity penetrates through the main machine assembly and is communicated with the milk storage assembly; the second accommodating cavity is embedded in the inside of the main machine assembly; the suction bowl is arranged in the inside of the second accommodating cavity and is used for causing the first accommodating cavity to change in air pressure. The breast pump provided by the application clamps the main machine assembly between the horn cover and the milk storage assembly, so that the components can be compactly connected in the thickness direction of the breast pump; the first accommodating cavity and the second accommodating cavity arranged on the horn cover penetrate through or are embedded in the main machine assembly, the suction bowl is arranged through the second accommodating cavity, and the thickness and volume of the breast pump cannot be increased.

Description

Technical Field

[0001] This application relates to the field of maternal and infant health technology, and in particular to a breast pump. Background Technology

[0002] The use of breast pumps increases the flexibility of breastfeeding, allowing mothers to continue breastfeeding their babies while at work, traveling, or engaged in other activities. By expressing and storing breast milk with a breast pump, mothers are no longer restricted to fixed breastfeeding times and locations, allowing them greater freedom to manage their lives and work.

[0003] Existing breast pumps typically include components such as a milk bowl, a suction bowl, an air pump, and a horn cover. The inner cavity of the suction bowl is connected to the nipple channel, and the outer cavity is connected to the air pump. When the air pump is working, the volume of the outer cavity decreases, causing the suction bowl to deform, and the volume of the inner cavity increases, causing the pressure in the nipple channel to decrease, thereby achieving the effect of sucking out milk.

[0004] However, breast pumps on the market are usually bulky due to the multiple internal components. Such bulky breast pumps are extremely inconvenient for users to carry when they go out, which affects the user experience. Utility Model Content

[0005] This application provides a breast pump to solve the technical problem that breast pumps in the prior art are bulky due to the presence of multiple internal components.

[0006] In a first aspect, this application provides a breast pump, including a horn cover, a suction bowl, a milk storage component, and a main unit component, wherein the main unit component is sandwiched between the horn cover and the milk storage component.

[0007] The horn cover has a first accommodating cavity and a second accommodating cavity extending toward the milk storage component, and the first accommodating cavity and the second accommodating cavity are connected; the first accommodating cavity is used to accommodate the nipple, and the first accommodating cavity passes through the main unit and is connected to the milk storage component; the second accommodating cavity is embedded inside the main unit; the suction bowl is disposed inside the second accommodating cavity to cause air pressure changes in the first accommodating cavity.

[0008] Optionally, the second accommodating cavity is provided with a first channel and a second channel. The first channel is used to connect the first accommodating cavity and the inner cavity of the suction bowl, and the second channel is used to connect the outer cavity of the suction bowl and the suction channel.

[0009] Optionally, the inner wall of the second accommodating cavity has a limiting structure that matches the suction bowl, the limiting structure being used to limit the movement of the suction bowl.

[0010] Optionally, the milk storage assembly is sealed to the second receiving cavity and / or suction bowl on the side facing the horn cover to form independent inner and outer cavities.

[0011] Optionally, the milk storage assembly includes a milk bowl top shell and a milk bowl bottom shell that are sealed together, and a milk storage cavity is formed between the milk bowl top shell and the milk bowl bottom shell, and the milk storage cavity is in communication with the first receiving cavity;

[0012] The bottom shell of the milk bowl has an annular protrusion on the side facing the second accommodating cavity. The suction bowl is sealed to the annular protrusion to form an inner cavity inside the suction bowl.

[0013] Optionally, the bottom shell of the milk bowl is provided with a third receiving cavity for accommodating the nipple, the first end of the third receiving cavity is connected to the first receiving cavity, and the second end of the third receiving cavity is connected to the milk storage cavity through a one-way valve.

[0014] Optionally, the top shell of the milk bowl has a milk outlet, and the bottom shell of the milk bowl has a spray guard corresponding to the milk outlet.

[0015] Optionally, the main unit assembly includes a detachably connected main unit front shell and a main unit bottom shell, with a component mounting cavity formed between the main unit front shell and the main unit bottom shell, and a second receiving cavity passing through the component mounting cavity;

[0016] The main unit's bottom casing has a contoured cavity that matches the first and second accommodating cavities.

[0017] Optionally, the main unit also includes a suction mechanism, a power supply module, and a control module disposed inside the component mounting cavity, the suction mechanism being connected to the second accommodating cavity.

[0018] Optionally, the suction mechanism includes a pump that is connected to the second accommodating cavity and is used to cause a volume change in the suction bowl.

[0019] The technical solutions provided in this application have the following advantages compared with the prior art:

[0020] The breast pump provided in this embodiment sandwiches the main unit between the horn cover and the milk storage component, enabling a compact connection between the various components in the thickness direction of the breast pump. Furthermore, a first accommodating cavity and a second accommodating cavity extending towards the milk storage component are provided on the horn cover. The nipple is accommodated through the first accommodating cavity, and a suction bowl is provided through the second accommodating cavity. The first and second accommodating cavities are connected. The suction bowl inside the second accommodating cavity is used to cause a pressure change in the first accommodating cavity to extract milk. The first and second accommodating cavities penetrate or are embedded in the main unit. While ensuring the normal functioning of the breast pump, the space behind the horn cover (i.e., the side facing the milk storage component) is fully utilized to accommodate the suction bowl inside the main unit. The installation of the suction bowl does not increase the thickness of the breast pump, thus avoiding an increase in the overall size of the breast pump and effectively reducing its overall volume. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0024] Figure 1 This is a schematic diagram of the structure of the speaker cover provided in an embodiment of this application;

[0025] Figure 2 A cross-sectional view of the speaker grille provided in an embodiment of this application;

[0026] Figure 3 Provided for the embodiments of this application Figure 1 Enlarged detail of section A;

[0027] Figure 4 This is a schematic diagram of the structure of a breast pump provided in an embodiment of this application;

[0028] Figure 5 A cross-sectional view of a breast pump provided in an embodiment of this application;

[0029] Figure 6 An exploded view of the breast pump provided in the embodiments of this application;

[0030] Figure 7 This is a schematic diagram of the suction bowl provided in an embodiment of this application;

[0031] Figure 8 A cross-sectional view of the suction bowl provided in an embodiment of this application;

[0032] Figure 9 A schematic diagram of the structure of the milk bowl bottom shell provided in the embodiments of this application. Figure 1 ;

[0033] Figure 10 A schematic diagram of the structure of the milk bowl bottom shell provided in the embodiments of this application. Figure 2 ;

[0034] Figure 11This is a schematic diagram of the structure of the milk bowl-shaped dough shell provided in an embodiment of this application;

[0035] Figure 12 This is a schematic diagram of the structure of the host bottom shell provided in an embodiment of this application;

[0036] Figure 13 This is a schematic diagram of the structure of the host casing provided in an embodiment of this application;

[0037] Figure 14 This is a schematic diagram showing the internal arrangement of the component mounting cavity provided in an embodiment of this application.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Speaker cover; 11. Cover body; 12. First accommodating cavity; 13. Second accommodating cavity; 131. First channel; 132. Second channel; 133. External cavity; 134. Limiting structure;

[0040] 2. Suction bowl; 21. Inner cavity; 22. Capsule wall; 221. Deformation part; 222. Mounting part; 223. First through hole; 224. First limiting part; 225. First positioning part; 226. Second limiting part;

[0041] 3. Milk storage assembly; 31. Milk storage chamber; 32. Milk bowl top shell; 321. Milk outlet; 322. Sealing plug; 323. Shell; 33. Milk bowl bottom shell; 331. Annular raised edge; 332. Third receiving cavity; 333. Spray preventer; 334. Second positioning part; 34. One-way valve; 35. Sealing element;

[0042] 4. Main unit assembly; 41. Component mounting cavity; 42. Main unit front shell; 421. Second through hole; 422. Third through hole; 423. Third positioning part; 43. Main unit bottom shell; 431. Contouring cavity; 432. Suction interface; 433. Bottom shell body; 44. Suction mechanism; 441. Pump component; 442. Valve component; 45. Power supply module; 46. Control module. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0045] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0046] To address the issue of large size in existing breast pumps due to the presence of multiple internal components, this application provides a breast pump in which the main unit 4 is sandwiched between the horn cover 1 and the milk storage component 3, resulting in a compact structure in the thickness direction. Furthermore, the horn cover 1 has a first receiving cavity 12 and a second receiving cavity 13 extending towards the milk storage component 3. The nipple is accommodated through the first receiving cavity 12, and the suction bowl 2 is housed through the second receiving cavity 13. Since the first and second receiving cavities 12 and 13 are integrated or embedded within the main unit 4, this design does not increase the thickness of the breast pump and effectively reduces its overall size.

[0047] Please see Figures 1 to 14 This application provides a breast pump, including a horn cover 1, a suction bowl 2, a milk storage component 3, and a main unit component 4. The main unit component 4 is sandwiched between the horn cover 1 and the milk storage component 3, so that the main unit component 4 is tightly connected to the horn cover 1 and the milk storage component 3 respectively, allowing each component to be aligned in the thickness direction of the breast pump (the thickness direction is...). Figure 5 A compact connection is formed in the left-right direction (as shown in the image). Figure 4 and Figure 5 As shown.

[0048] Please see Figure 5 The horn cover 1 has a first receiving cavity 12 and a second receiving cavity 13 extending toward the milk storage component 3, and the first receiving cavity 12 and the second receiving cavity 13 are connected. The first receiving cavity 12 is used to receive the nipple, and the first receiving cavity 12 passes through the main unit 4 and is connected to the milk storage component 3, so that the milk can flow into the interior of the milk storage component 3 after being drawn. The second receiving cavity 13 is embedded in the interior of the main unit 4. The suction bowl 2 is disposed in the interior of the second receiving cavity 13. The suction bowl 2 has elastic deformation capability, and is used to cause air pressure change in the first receiving cavity 12 through the volume change of the suction bowl 2, thereby realizing the extraction of milk.

[0049] It should be noted that since the first accommodating cavity 12 and the second accommodating cavity 13 penetrate or are embedded in the main unit assembly 4, the excess space inside the main unit assembly 4 can be utilized while avoiding an increase in the thickness of the breast pump. At the same time, the first accommodating cavity 12 and the second accommodating cavity 13 extend toward the milk storage assembly 3, which can make full use of the space behind the horn cover 1 (i.e., the side facing the milk storage assembly 3) to arrange the suction bowl 2 inside the main unit assembly 4, effectively reducing the overall size of the breast pump.

[0050] In some embodiments of this application, please refer to Figure 1 and Figure 2 The ventilator 1 also includes a cover 11, which is designed to fit snugly against the breast to prevent external air from entering through the gap between the breast and the ventilator 1 during milk extraction, thus affecting the formation of a negative pressure environment inside the cover 11. Specifically, the cover 11 has a curved surface facing the breast that conforms to the breast surface, allowing for a seamless fit between the surface of the cover 11 and the breast surface. Figure 1 and Figure 2 As shown.

[0051] In some embodiments of this application, please refer to Figure 2 and Figure 5 The second accommodating cavity 13 is provided with a first channel 131 and a second channel 132. The first channel 131 is used to connect the first accommodating cavity 12 and the inner cavity 21 of the suction bowl 2. The second channel 132 is used to connect the outer cavity 133 of the suction bowl 2 and the suction channel (not shown in the figure). The outer cavity 133 is formed inside the second accommodating cavity 13.

[0052] When the suction channel is connected to the suction mechanism 44, the suction mechanism 44 performs suction on the suction channel and the external cavity 133. Since the suction bowl 2 has elastic deformation capability, it is equivalent to an airbag capable of volume change. Under the pressure of the external cavity 133, the wall 22 of the suction bowl 2 will deform (the direction of deformation is as follows). Figure 8(As shown by the solid arrow in the image), at this time, the volume of the inner cavity 21 expands, generating negative pressure within the inner cavity 21. Since the inner cavity 21 is connected to the first accommodating cavity 12, airflow from the first accommodating cavity 12 enters the inner cavity 21 (airflow direction as shown in the image). Figure 8 (As shown by the dashed arrow in the image), this creates negative pressure in the first accommodating cavity 12, which can draw milk from the nipple.

[0053] It should be noted that this application places the second receiving cavity 13 on the side of the cover 11 facing away from the breast. This allows for the utilization of the extra space behind the horn cover 1 (i.e., the side facing away from the breast), eliminating the need to place the suction bowl 2 inside the milk storage chamber 31 of the milk storage component 3. This fully utilizes the space behind the horn cover 1 to accommodate the suction bowl 2, avoiding any impact on the milk storage capacity or volume of the milk storage chamber 31 and the breast pump. This allows for either a sufficiently small breast pump or a sufficiently large milk storage chamber 31.

[0054] In some embodiments of this application, please refer to Figure 1 and Figure 2 The first accommodating cavity 12 is located in the central area of ​​the cover 11, and the second accommodating cavity 13 is located in the edge area of ​​the cover 11. It can be matched with the breast structure, or the suction bowl 2 can be placed in the edge area of ​​the cover 11 where there is sufficient space.

[0055] In some embodiments of this application, please refer to Figure 1 , Figure 3 and Figure 7 The inner wall of the second accommodating cavity 13 has a limiting structure 134 that matches the suction bowl 2. The limiting structure 134 is used to limit the movement of the suction bowl 2, so that the assembly position of the suction bowl 2 inside the second accommodating cavity 13 can be fixed, and the position of the suction bowl 2 inside the second accommodating cavity 13 can be prevented from moving when the volume of the outer cavity 133 and the inner cavity 21 changes.

[0056] It should be noted that the limiting structure 134 can be one or more annular protrusions or annular grooves, used to achieve a concave-convex fit with the suction bowl 2, preventing the suction bowl 2 from moving inside the second accommodating cavity 13.

[0057] In some embodiments of this application, please refer to Figure 3 and Figure 7The limiting structure 134 includes an annular groove extending circumferentially along the first channel 131. The bottom of the suction bowl 2 is provided with a first limiting part 224 that matches the annular groove. The first limiting part 224 is an annular protrusion that can be embedded in the annular groove (i.e., the limiting structure 134) on the inner wall of the second accommodating cavity 13. While realizing the limiting connection, it can also realize the sealing connection between the first channel 131 and the first through hole 223, thereby realizing the sealing connection between the inner cavity 21 and the first channel 131.

[0058] In some embodiments of this application, the milk storage assembly 3 is sealed to the second accommodating cavity 13 and / or the suction bowl 2 on the side facing the horn cover 1, forming an independent inner cavity 21 and an outer cavity 133. This allows the inner cavity 21 to communicate with the first accommodating cavity 12 and allow airflow only through the first channel 131, and the outer cavity 133 to communicate with the suction channel and allow airflow only through the second channel 132. Figure 5 As shown.

[0059] In some embodiments of this application, please refer to Figure 1 and Figure 5 The suction bowl 2 has only a first through hole 223 on its bladder wall 22 for communicating with the first channel 131, and the inner cavity 21 can only have airflow through the first channel 131. When the second accommodating cavity 13 has an opening for inserting the suction bowl 2, the side of the second accommodating cavity 13 with the opening is sealed to the milk storage component 3, or an openable and closable sealing cover is provided at the opening of the second accommodating cavity 13, so that the airflow in the outer cavity 133 can only flow through the second channel 132.

[0060] In other embodiments of this application, please refer to Figure 1 , Figure 5 and Figure 7 When both the suction bowl 2 and the second accommodating cavity 13 have openings on the side facing the milk storage component 3, sealing the side of the suction bowl 2 with the opening to the milk storage component 3 can seal the inner cavity 21, allowing airflow only through the first channel 131. Sealing the side of the second accommodating cavity 13 with the opening to the milk storage component 3, or sealing the inner wall of the second accommodating cavity 13 to the outer wall of the mounting portion 222 on the suction bowl 2, can seal the outer cavity 133, allowing airflow only through the second channel 132.

[0061] In some embodiments of this application, please refer to Figure 5 , Figure 6 and Figure 9The milk storage component 3 includes a sealed milk bowl shell 32 and a milk bowl bottom shell 33, with a milk storage cavity 31 formed between the milk bowl shell 32 and the milk bowl bottom shell 33, and the milk storage cavity 31 is connected to the first accommodating cavity 12. In order to facilitate the observation of the amount of milk stored in the milk storage cavity 31, the shell 323 of the milk bowl shell 32 can be made of a transparent or translucent material.

[0062] The bottom shell 33 of the milk bowl has an annular protrusion 331 on the side facing the second accommodating cavity 13. The suction bowl 2 is sealed to the annular protrusion 331 to form an inner cavity 21 inside the suction bowl 2. Specifically, an annular second limiting part 226 is provided on the opening of the suction bowl 2 facing the bottom shell 33 of the milk bowl, which can be used to achieve a sealed connection with the annular protrusion 331 to prevent airflow in the inner cavity 21 from leaking from the opening of the suction bowl 2.

[0063] In some embodiments of this application, please refer to Figure 7 and Figure 8 The suction bowl 2 has a semi-enclosed structure. A deformation part 221 is provided on the side of the suction bowl 2 facing the horn cover 1, and a mounting part 222 is provided on the side of the suction bowl 2 facing the bottom shell 33 of the milk bowl. The wall thickness of the deformation part 221 is less than the wall thickness of the mounting part 222, making the deformation part 221 easily deformable under pressure changes (the deformation direction of the deformation part 221 when milk is extracted is as follows). Figure 8 (As shown by the solid arrow in the image), while the mounting part 222 can remain in its original state, thereby ensuring the assembly reliability between the suction bowl 2 and the second accommodating cavity 13 and the bottom shell of the milk bowl 33.

[0064] In some embodiments of this application, please refer to Figure 5 , Figure 7 and Figure 8 The mounting part 222 is provided with a first positioning part 225 on the side near the bottom shell 33 of the milk bowl, which can be positioned and abutted against the second accommodating cavity 13 and the annular protrusion 331 of the bottom shell 33 of the milk bowl, respectively, which can improve the assembly efficiency of the breast pump.

[0065] In some embodiments of this application, please refer to Figure 5 , Figure 9 and Figure 10 The bottom shell 33 of the milk bowl is provided with a third receiving cavity 332 for accommodating the nipple. The first end of the third receiving cavity 332 is connected to the first receiving cavity 12 to form a nipple channel inside the breast pump. The second end of the third receiving cavity 332 is connected to the milk storage cavity 31 through a one-way valve 34, which allows the milk to flow unidirectionally from the third receiving cavity 332 to the milk storage cavity 31.

[0066] In some embodiments of this application, please refer to Figure 5 and Figure 6The one-way valve 34 is a duckbill valve. The end of the duckbill valve is usually made of soft silicone, and its shape resembles a duckbill, providing a certain degree of elasticity and sealing. When milk passes through the duckbill valve, due to its special shape and material, it opens in the direction of milk flow, allowing the milk to pass smoothly. However, when the milk attempts to flow in the opposite direction, the duckbill valve closes due to its elasticity and sealing properties, thus preventing backflow and creating a closed cavity formed by the third accommodating cavity 332, the first accommodating cavity 12, and the inner cavity 21.

[0067] In some embodiments of this application, please refer to Figure 5 , Figure 10 and Figure 11 The milk bowl shell 32 has a milk outlet 321, and the milk bowl bottom shell 33 has a spray-proof part 333 corresponding to the milk outlet 321, which can slow down the milk flow rate and prevent milk from spraying directly from the milk outlet 321 during the pouring process.

[0068] In some embodiments of this application, please refer to Figure 5 , Figure 10 and Figure 11 The milk outlet 321 is located at the top of the milk bowl shell 32, and an openable sealing plug 322 is provided at the milk outlet 321 to prevent external impurities from entering the milk storage chamber 31 through the milk outlet 321. A blow-out preventer 333 is provided on the top side of the milk bowl bottom shell 33 facing the milk bowl shell 32. The blow-out preventer 333 is an arc-shaped plate, and there is a gap between the blow-out preventer 333 and the milk bowl shell 32 to prevent the blow-out preventer 333 from affecting the flow of milk. Under the guiding effect of the arc-shaped plate and the arc-shaped curved surface of the inner wall of the milk bowl shell 32, the milk can be slowly poured out from the milk outlet 321.

[0069] In some embodiments of this application, please refer to Figure 5 and Figure 6 The milk bowl top shell 32 and the milk bowl bottom shell 33 are sealed together by an annular sealing element 35. The sealing plug 322 is integrally set on the sealing element 35 and can be integrally molded by injection molding, which can simplify the manufacturing process and reduce the number of parts.

[0070] In some embodiments of this application, please refer to Figure 5 and Figure 10 The bottom shell 33 of the milk bowl is provided with a second positioning part 334 on the side facing the top shell 32 of the milk bowl, which can be used to achieve positioning and contact with the top shell 32 of the milk bowl and / or the sealing part 35, thereby improving the assembly efficiency of the breast pump.

[0071] In some embodiments of this application, please refer to Figure 5 , Figure 6 , Figure 12 and Figure 13The main unit 4 includes a detachably connected main unit front shell 42 and a main unit bottom shell 43. A component mounting cavity 41 is formed between the main unit front shell 42 and the main unit bottom shell 43. A second accommodating cavity 13 is disposed through the component mounting cavity 41, which can make reasonable use of the extra space in the component mounting cavity 41 where no components are installed.

[0072] In some embodiments of this application, please refer to Figure 5 and Figure 14 The component mounting cavity 41 is arranged around the first accommodating cavity 12, and the second accommodating cavity 13 is arranged through the component mounting cavity 41, both of which can utilize the extra space in the component mounting cavity 41.

[0073] It should be noted that in this application, the suction bowl 2 is set in the second accommodating cavity 13 of the speaker cover 1, passing through the component mounting cavity 41 of the main unit assembly 4, so that the suction bowl 2 and / or the second accommodating cavity 13 are sealed to the milk storage assembly 3, forming an independent and sealed inner cavity 21 and an outer cavity 133. The extra space inside the component mounting cavity 41 can be utilized, making the structure of the breast pump compact. This avoids occupying the volume of the milk storage cavity 31, allowing the volume of the milk storage cavity 31 to be designed to be large enough, or allowing the body of the breast pump to be thin and light enough.

[0074] The main unit bottom shell 43 has a contoured cavity 431 that matches the first accommodating cavity 12 and the second accommodating cavity 13, so as to avoid interference when the main unit bottom shell 43 is fitted to the speaker cover 1.

[0075] In some embodiments of this application, please refer to Figure 12 The main unit bottom shell 43 is provided with an 8-shaped cavity 431, which can be fitted onto the outside of the first accommodating cavity 12 and the second accommodating cavity 13; the main body 433 of the main unit bottom shell 43 is matched with the cover 11, both of which are horn-shaped, so that the main unit bottom shell 43 and the horn cover 1 fit together closely and achieve a tight connection between the two.

[0076] In some embodiments of this application, please refer to Figure 5 , Figure 6 and Figure 13 The main unit housing 42 is provided with a second through hole 421 and a third through hole 422. The second through hole 421 is matched with the outer wall of the first accommodating cavity 12, and the third through hole 422 is matched with the annular protrusion 331 of the milk bowl bottom shell 33. This can prevent the main unit housing 42 from interfering with the assembly connection between the milk bowl bottom shell 33 and the speaker cover 1.

[0077] In some embodiments of this application, please refer to Figure 13 The main unit faceplate 42 is provided with a third positioning part 423 on the side facing the bottom shell 33 of the milk bowl, which is used to position and abut against the bottom shell 33 of the milk bowl, thereby improving the assembly efficiency of the breast pump.

[0078] In some embodiments of this application, please refer to Figure 5 and Figure 14 The main unit 4 also includes a suction mechanism 44, a power supply module 45, and a control module 46 disposed inside the component mounting cavity 41. The power supply module 45 is used to provide power to the suction mechanism 44, and the control module 46 is used to realize signal processing and control during the milk extraction process. The main unit 4 can drive and control the entire milk extraction process, which can improve extraction efficiency and user experience.

[0079] In some embodiments of this application, the suction mechanism 44 is connected to the second accommodating cavity 13 through a suction channel (not shown in the figure). Specifically, the suction channel is connected to the suction interface 432 on the bottom shell 43 of the main unit, and the suction interface 432 is connected to the second channel 132 of the second accommodating cavity 13. The suction mechanism 44 can perform suction on the second channel 132 and the external cavity 133, thereby causing the deformation part 221 of the suction bowl 2 to deform and the volume of the external cavity 133 to change.

[0080] In some embodiments of this application, please refer to Figure 14 The suction mechanism 44 includes a pump 441 and a valve 442. The pump 441 is connected to the second accommodating cavity 13 through the suction channel and is used to change the air pressure inside the suction channel. The volume of the suction bowl 2 will also change accordingly. The valve 442 is set on the suction channel and is used to realize the opening and closing of the suction channel and the flow control, so as to adjust the suction force or frequency of the breast pump.

[0081] In some embodiments of this application, the power supply module 45 includes a battery and a charging assembly, which enables the breast pump to continue operating via charging. The control module 46 includes a circuit board, which enables the integrated arrangement of control elements.

[0082] In some embodiments of this application, the host component 4 also includes a heating module and / or a massage module, which can apply heat and / or massage to the breast during the milk extraction process, thereby improving user experience, optimizing lactation, and ensuring breastfeeding comfort.

[0083] Please see Figures 1 to 14 In some embodiments of this application, the operation of the breast pump described above is as follows:

[0084] Step 1: Seal the flow path between the milk storage chamber 31 and the third accommodating chamber 332 by using the one-way valve 34, so that the third accommodating chamber 332, the first accommodating chamber 12 and the inner chamber 21 form a sealed chamber;

[0085] Step 2: The suction mechanism 44 draws airflow from the second channel 132 and the outer cavity 133, causing the deformation part 221 of the suction bowl 2 to deform. The volume of the outer cavity 133 decreases, and the volume of the inner cavity 21 increases. Thus, the change in the volume of the outer cavity 133 generates negative pressure in the third accommodating cavity 332, the first accommodating cavity 12, and the inner cavity 21, thereby achieving milk extraction.

[0086] Step 3: After milk extraction is completed, the suction mechanism 44 stops suctioning, the volume of the outer cavity 133 increases, the deformable part 221 returns to its original shape, the volume of the inner cavity 21 decreases, and the air pressure in the third accommodating cavity 332, the first accommodating cavity 12 and the inner cavity 21 increases, which can open the one-way valve 34 and allow the extracted milk to enter the milk storage cavity 31.

[0087] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0088] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0089] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A breast pump, characterized in that, It includes a horn cover (1), a suction bowl (2), a milk storage component (3), and a main unit component (4), wherein the main unit component (4) is sandwiched between the horn cover (1) and the milk storage component (3); The horn cover (1) has a first accommodating cavity (12) and a second accommodating cavity (13) extending toward the milk storage component (3), and the first accommodating cavity (12) and the second accommodating cavity (13) are connected; the first accommodating cavity (12) is used to accommodate the nipple, and the first accommodating cavity (12) penetrates the main unit component (4) and is connected to the milk storage component (3); the second accommodating cavity (13) is embedded inside the main unit component (4); the suction bowl (2) is disposed inside the second accommodating cavity (13) and is used to cause air pressure changes in the first accommodating cavity (12).

2. The breast pump according to claim 1, characterized in that, The second accommodating cavity (13) is provided with a first channel (131) and a second channel (132). The first channel (131) is used to connect the first accommodating cavity (12) and the inner cavity (21) of the suction bowl (2). The second channel (132) is used to connect the outer cavity (133) of the suction bowl (2) and the suction channel.

3. The breast pump according to claim 1, characterized in that, The inner wall of the second accommodating cavity (13) has a limiting structure (134) that matches the suction bowl (2), and the limiting structure (134) is used to limit the movement of the suction bowl (2).

4. The breast pump according to claim 2, characterized in that, The milk storage assembly (3) is sealed to the second accommodating cavity (13) and / or the suction bowl (2) on the side facing the horn cover (1) to form the independent inner cavity (21) and the outer cavity (133).

5. The breast pump according to claim 2, characterized in that, The milk storage component (3) includes a milk bowl top shell (32) and a milk bowl bottom shell (33) that are sealed together. A milk storage cavity (31) is formed between the milk bowl top shell (32) and the milk bowl bottom shell (33). The milk storage cavity (31) is connected to the first accommodating cavity (12). The bottom shell (33) of the milk bowl is provided with an annular protrusion (331) on the side facing the second accommodating cavity (13), and the suction bowl (2) is sealed to the annular protrusion (331) to form the inner cavity (21) inside the suction bowl (2).

6. The breast pump according to claim 5, characterized in that, The bottom shell (33) of the milk bowl is provided with a third receiving cavity (332) for receiving the nipple. The first end of the third receiving cavity (332) is connected to the first receiving cavity (12). The second end of the third receiving cavity (332) is connected to the milk storage cavity (31) through a one-way valve (34).

7. The breast pump according to claim 5, characterized in that, The milk bowl shell (32) has a milk outlet (321), and the milk bowl bottom shell (33) has a spray guard (333) corresponding to the milk outlet (321).

8. The breast pump according to any one of claims 1 to 7, characterized in that, The host assembly (4) includes a detachably connected host front shell (42) and host bottom shell (43), and a component mounting cavity (41) is formed between the host front shell (42) and the host bottom shell (43), and the second accommodating cavity (13) is disposed through the component mounting cavity (41); The main unit bottom shell (43) has a contoured cavity (431) that matches the first accommodating cavity (12) and the second accommodating cavity (13).

9. The breast pump according to claim 8, characterized in that, The host component (4) also includes a suction mechanism (44), a power supply module (45) and a control module (46) disposed inside the component mounting cavity (41), wherein the suction mechanism (44) is connected to the second accommodating cavity (13).

10. The breast pump according to claim 9, characterized in that, The suction mechanism (44) includes a pump (441) which is connected to the second accommodating cavity (13) and is used to cause a volume change in the suction bowl (2).

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