Breast pump

Abstract

The utility model discloses a kind of breast pumps, the breast pump includes shroud assembly and negative pressure mechanism, shroud assembly is used to be attached with user breast and at least accommodate user nipple and receive milk, negative pressure mechanism is used to directly or indirectly exert negative pressure on shroud assembly, to suck milk;Shroud assembly includes milk passage portion and flange, the segmentation section of milk passage portion divides milk passage portion into upper part and lower part, segmentation section is left-right symmetrical about the central axis of breast pump, negative pressure mechanism is at least partially located or crosses the segmentation section of milk passage portion. At least partially located or crosses the segmentation section of milk passage portion by the negative pressure mechanism of the present application, the size of breast pump in vertical direction can be reduced, so that breast pump is convenient to wear, and the portability of breast pump is improved.

Description

Technical Field

[0001] This utility model relates to the field of breast pumps, specifically to a breast pump. Background Technology

[0002] In modern life, breast pumps are an important tool for maternal and infant care, widely used to collect breast milk from lactating mothers. For mothers who need to return to work after childbirth, breast pumps can help them collect and store breast milk when not breastfeeding, ensuring that their babies receive adequate nutrition.

[0003] Current breast pumps typically consist of a negative pressure mechanism, a milk channel section, a shield assembly, and a milk storage container. The negative pressure mechanism creates a negative pressure environment to draw out milk, which then flows into the milk storage container through the milk channel section. In traditional breast pumps, the negative pressure mechanism is usually located entirely above or below the milk channel section.

[0004] However, when the negative pressure mechanism is located above or below the milk channel, the breast pump will be too large in the vertical direction, making it inconvenient to wear and carry. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, this application provides a breast pump that reduces the vertical dimension of the breast pump by having a negative pressure mechanism located at least partially in or through the segmented section of the milk channel, making the breast pump easier to wear and improving its portability.

[0006] To solve the above problems, this utility model provides the following technical solution: In a first aspect, embodiments of this application provide a breast pump, the breast pump including a shield assembly and a negative pressure mechanism, the shield assembly being used to fit against the user's breast and at least accommodate the user's nipple and receive milk, the negative pressure mechanism being used to directly or indirectly apply negative pressure to the shield assembly to draw out milk; The shield assembly includes a milk channel portion and a flange, the flange being connected to one end of the milk channel portion and used to conform to the user's breast. The milk channel section is divided into an upper part and a lower part by a cross section, and the cross section is symmetrical about the central axis of the breast pump. The negative pressure mechanism is at least partially located at or passes through the segmented section of the milk channel.

[0007] In this way, the vertical dimensions of the breast pump can be reduced, making it easier to wear and improving its portability.

[0008] In some embodiments, the segmented section is a horizontal plane; or The angle between the segmented section and the horizontal plane is within a preset angle range.

[0009] In some embodiments, the segmented section passes through the center of the end of the milk channel that communicates with the flange; And / or, the segmented section passes through the center of the other end of the milk channel that is opposite to the end that communicates with the flange.

[0010] In some implementations, the preset angle range is [0 degrees, 30 degrees].

[0011] In some embodiments, the negative pressure mechanism includes a negative pressure generating section and a negative pressure transmitting section connected to the negative pressure generating section. The negative pressure transmitting section is used to transmit negative pressure to the negative pressure air passage of the breast pump to apply negative pressure to the shield assembly, thereby drawing milk. In this way, the distance of negative pressure transmission can be increased, thereby increasing the flexibility of the design position of the negative pressure mechanism.

[0012] In some embodiments, the negative pressure transmission section is at least partially located in or passes through the segmented cross section.

[0013] In some embodiments, the negative pressure generating section is located at the upper part of the milk channel section, and the negative pressure conveying section is at least partially level with or extends beyond the top of the lower part of the milk channel section; or... The negative pressure generating section is located at the lower part of the milk channel section, and the negative pressure transmitting section is at least partially level with or extends beyond the bottom end of the upper part of the milk channel section. In this way, when the negative pressure chamber and the negative pressure generating section are located at the upper and lower parts of the milk channel section respectively, the negative pressure generating section does not need to be located near the negative pressure chamber, which improves the flexibility of space utilization within the breast pump.

[0014] In some embodiments, the negative pressure generating part and the negative pressure transmitting part are integrally formed. In this way, the airtightness of the negative pressure mechanism can be increased.

[0015] In some embodiments, the negative pressure air path includes a negative pressure chamber, and the negative pressure transmission unit is directly connected to the negative pressure chamber. In this way, no additional connecting parts are needed between the negative pressure mechanism and the negative pressure chamber, thus facilitating the assembly of the breast pump. Furthermore, it can shorten the distance of negative pressure transmission and improve negative pressure transmission efficiency.

[0016] In some embodiments, the negative pressure air path includes a negative pressure chamber and a connecting pipe, and the negative pressure transmission unit communicates with the negative pressure chamber through the connecting pipe. This increases the flexibility of the negative pressure mechanism's design location.

[0017] In some embodiments, there are at least two negative pressure mechanisms arranged around the milk channel portion. This reduces the thickness of the breast pump compared to vertically stacking the negative pressure mechanisms. Furthermore, it keeps the center of gravity of the breast pump approximately in the center, making it less prone to tipping over.

[0018] In some embodiments, the positions of the at least two negative pressure mechanisms are symmetrical about the vertical central axis of the milk channel. This keeps the center of gravity of the breast pump aligned with its central axis, preventing it from tipping over.

[0019] In some embodiments, the breast pump further includes a power supply module for providing energy to the negative pressure mechanism, and the power supply module is located at the bottom of the breast pump. This design allows the center of gravity of the breast pump to be positioned at the bottom, making it less prone to tipping over.

[0020] In some embodiments, the center of gravity of the breast pump is located below the segmented cross-section. In this way, the breast pump does not exert excessive pressure on the breast during pumping, improving user comfort and making the breast pump less likely to tip over or fall off.

[0021] This application provides a breast pump. By using a negative pressure mechanism that is at least partially located in or passes through the segmented section of the milk channel, the vertical dimensions of the breast pump can be reduced, making it easier to wear and improving its portability. Furthermore, it lowers the center of gravity of the breast pump, making it less prone to tipping over or falling off. Additionally, the negative pressure mechanism does not occupy the installation space of the milk storage container below the milk channel, facilitating an increase in the capacity of the milk storage container.

[0022] Furthermore, the direct connection between the negative pressure transmission unit and the negative pressure chamber eliminates the need for additional connecting parts, facilitating the assembly of the breast pump. Additionally, it shortens the distance of negative pressure transmission and improves transmission efficiency. Attached Figure Description

[0023] Figure 1 This is a side view of the breast pump provided in the embodiment of this application.

[0024] Figure 2 This is a top view of the breast pump provided in the embodiments of this application.

[0025] Figure 3 This is a rear view schematic diagram of a first embodiment of the internal structure of a breast pump provided in this application.

[0026] Figure 4The breast pump provided in this application embodiment is... Figure 2 The sectional view at section line AA.

[0027] Figure 5 This is a rear view schematic diagram of a second embodiment of the internal structure of the breast pump provided in this application. Detailed Implementation

[0028] 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, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] This application provides a breast pump 1. By having a negative pressure mechanism 20 at least partially located in or passing through the segmented section of the milk channel 11, the vertical dimensions of the breast pump 1 can be reduced, making the breast pump 1 easier to wear and improving its portability. Furthermore, it lowers the center of gravity of the breast pump 1, making it less prone to tipping over or falling off. Additionally, the negative pressure mechanism 20 does not occupy the installation space of the milk storage container 40 below the milk channel 11, facilitating an increase in the capacity of the milk storage container 40.

[0031] The breast pump 1 provided in this application will now be described in detail with reference to the accompanying drawings.

[0032] Please see Figure 1 and Figure 2 , Figure 1 This is a side view of the breast pump provided in an embodiment of this application. Figure 2 This is a top view schematic diagram of the breast pump provided in an embodiment of this application. Figure 1 and Figure 2 As shown, this application provides a breast pump 1. Figure 1 As shown, in some embodiments, the breast pump 1 includes a shield assembly 10, a main unit 30, and a milk storage container 40. The shield assembly 10 is designed to conform to the user's breast and at least accommodate the user's nipple and receive milk. The milk storage container 40 is used to store the milk collected by the shield assembly 10.

[0033] Please see Figure 3, Figure 3 This is a rear view schematic diagram of a first embodiment of the internal structure of a breast pump provided in this application. Figure 3 As shown, the breast pump 1 also includes a negative pressure mechanism 20, which is used to apply negative pressure directly or indirectly to the shield assembly 10 to draw out milk.

[0034] Optionally, the main unit 30 includes a main unit housing and a receiving space, in which other components are installed. For example, the receiving space may contain a negative pressure mechanism 20, a control mechanism 31, and a power supply module 32. The control mechanism 31 is used to control the operation of the negative pressure mechanism 20.

[0035] In some embodiments, the breast pump 1 includes Figure 1 The shield component 10 and Figure 3 The negative pressure mechanism 20 in the middle.

[0036] Please see Figure 4 , Figure 4 The breast pump provided in this application embodiment is... Figure 2 The sectional view at section line AA in the diagram. (Example) Figure 4 As shown, in some embodiments, the breast shield assembly 10 includes a milk channel portion 11 and a flange 12, the flange 12 being connected to one end of the milk channel portion 11 and used to conform to the user's breast. The segmented cross-section of the milk channel portion 11 divides the milk channel portion 11 into an upper part and a lower part.

[0037] like Figure 3 As shown, exemplarily, the first dividing section P1 divides the milk channel portion 11 into an upper part and a lower part.

[0038] In some embodiments, the segmented section is symmetrical about the central axis Z of the breast pump 1. Specifically, the angles formed by the segmented section and the symmetrical section of the breast pump 1 passing through the central axis Z are equal. The symmetrical section of the breast pump 1 refers to a section that makes the structure of the breast pump 1 symmetrical or approximately symmetrical on both sides of the section. When the breast pump 1 is placed vertically, this symmetrical section is a vertical plane. Figure 2 The section defined by section line AA is the symmetrical section of breast pump 1.

[0039] like Figure 3 and Figure 4 As shown, exemplarily, Figure 4 The first segment P1 is a horizontal plane, therefore... Figure 3 From the perspective of viewing the first segment P1, it appears as a straight line. Figure 3 The first segment P1 is symmetrical about the central axis Z.

[0040] like Figure 3 and Figure 4 As shown, exemplarily, Figure 4 The angle between the second segment P2 and the first segment P1 is α, therefore... Figure 3 From the perspective of viewing the second section P2, it has a certain height in the vertical direction. Figure 3 The second section P2 is symmetrical about the central axis Z.

[0041] like Figure 3 As shown, optionally, the negative pressure mechanism 20 is at least partially located in or passes through the segmented section of the milk channel portion 11.

[0042] In some implementations, the dividing section is a horizontal plane. For example... Figure 3 and Figure 4 As shown, exemplarily, the first segmented section P1 is a horizontal plane.

[0043] Optionally, the dividing section is the first horizontal plane where the geometric center point of the cross-section of the milk channel portion 11 in the vertical direction is located. The cross-section can be any portion of the milk channel portion 11 in the vertical direction.

[0044] In some implementations, the angle between the segmented section and the horizontal plane is within a preset angle range.

[0045] like Figure 4 As shown, for example, the angle α between the second segmented section P2 and the horizontal plane is located within a preset angle range.

[0046] Optionally, the preset angle range is [0 degrees, 30 degrees]. For example, the preset angle can be 1 degree, 10 degrees, 15 degrees, 20 degrees, or 30 degrees, etc.

[0047] When a cross section is formed by rotating counterclockwise from a horizontal plane Figure 4 When the second segment P2 is in the middle, the angle α between the second segment P2 and the horizontal plane is a positive angle.

[0048] In some implementations, a portion of the segmented section is located below the horizontal plane.

[0049] like Figure 4 As shown, exemplarily, a portion of the second segmented section P2 is located below the horizontal plane.

[0050] In some embodiments, the milk channel portion 11 includes one end communicating with the flange 12 and the other end opposite to the end communicating with the flange 12.

[0051] In some embodiments, the segmented section passes through the center of the end of the milk channel section 11 that communicates with the flange 12.

[0052] Optionally, the end of the milk channel 11 that communicates with the flange 12 includes a communication port 111 that communicates with the flange 12, and the segmented section passes through the geometric center point of the communication port 111. For example, when the communication port 111 is circular, the segmented section passes through the center of the communication port 111.

[0053] like Figure 3 and Figure 4 As shown, by way of example, the first segmented section P1 passes through the first geometric center point O1 of the communication port 111 of the milk channel section 11, and the first segmented section P1 is a horizontal plane.

[0054] In some embodiments, the segmented section passes through the center of the opposite end of the milk channel section 11, which is connected to the flange 12.

[0055] Optionally, the other end of the milk channel section 11 opposite to the end communicating with the flange 12 includes a port 112, and the dividing section passes through the geometric center point of the port 112.

[0056] In some embodiments, the segmented section passes through the center of one end of the milk channel portion 11 that communicates with the flange 12, and also passes through the center of the other end of the milk channel portion 11 opposite to the end that communicates with the flange 12.

[0057] Optionally, the segmented section passes through the geometric center point of the communication port 111 connecting the milk channel portion 11 to the shield assembly 10 and the geometric center point of the port 112 at the other end of the milk channel portion 11. For example, the second segmented section P2 passes through the first geometric center point O1 of the communication port 111 connecting the milk channel portion 11 to the shield assembly 10 and the second geometric center point O2 of the port 112 at the other end of the milk channel portion 11.

[0058] like Figure 4 As shown, optionally, the port 112 at the other end of the milk channel section 11 opposite to the communication port 111 can be a closed port. In this case, milk flows from the bottom of the milk channel section 11 into the milk storage container 40 through the one-way valve 41.

[0059] In other embodiments, the port 112 at the other end of the milk channel section 11 opposite to the connecting port 111 can be an open port. The open port 112 can be connected to the one-way valve 41, and milk can flow from the open port 112 into the milk storage container 40 through the one-way valve 41.

[0060] For example, the first segmented section P1 and the second segmented section P2 both pass through the communication port 111 of the milk channel section 11 and the protective cover assembly 10 and the port 112 at the other end of the milk channel section 11.

[0061] The above description of the segmented section is merely an example. The segmented section only needs to divide the milk channel portion 11 into an upper part and a lower part. This application does not limit the position of the segmented section.

[0062] like Figure 3 As shown, in some embodiments, the negative pressure mechanism 20 includes a negative pressure generating section 21 and a negative pressure transmitting section 22 connected to the negative pressure generating section 21. The negative pressure transmitting section 22 is used to transmit negative pressure to the negative pressure air passage of the breast pump 1 to apply negative pressure to the shield assembly 10, thereby drawing milk. In this way, the distance of negative pressure transmission can be increased, thereby increasing the flexibility of the design position of the negative pressure mechanism 10.

[0063] In some embodiments, the breast pump 1 further includes a diaphragm assembly, with a negative pressure air passage connected to the diaphragm assembly. By transmitting negative pressure to the diaphragm assembly, the diaphragm assembly can be moved, thereby applying negative pressure to the shield assembly 10, thereby drawing milk.

[0064] In some embodiments, the negative pressure generating unit 21 includes one of a negative pressure pump drive mechanism, a magnetic drive mechanism, and a mechanical drive mechanism.

[0065] Alternatively, the negative pressure pump drive mechanism may include air pumps and hydraulic pumps, etc.

[0066] like Figure 3 As shown, in some embodiments, the negative pressure generating unit 21 and the negative pressure transmitting unit 22 are integrally formed. In this way, the airtightness of the negative pressure mechanism 20 can be increased.

[0067] In some embodiments, the negative pressure transmission unit 22 is made of materials such as plastic and silicone.

[0068] Optionally, the negative pressure transmission part 22 has a Shore hardness greater than 50. In this way, the negative pressure transmission part 22 is less prone to deformation and more durable.

[0069] In some embodiments, the negative pressure transmission section 22 is at least partially located in or passes through the segmented section.

[0070] like Figure 3 As shown, exemplarily, the negative pressure transmission unit 22 passes through the first segmented section P1.

[0071] In some embodiments, the negative pressure air path includes a negative pressure chamber, and the negative pressure transmission unit 22 is directly connected to the negative pressure chamber. In this way, no additional connecting parts are needed between the negative pressure mechanism 20 and the negative pressure chamber, thus facilitating the assembly of the breast pump 1. Furthermore, it can shorten the distance of negative pressure transmission and improve the efficiency of negative pressure transmission.

[0072] like Figure 3As shown, exemplarily, the negative pressure chamber includes a connecting part Q, and the negative pressure transmission part 22 is directly connected to the connecting part Q of the negative pressure chamber, thereby being directly connected to the negative pressure chamber.

[0073] In some embodiments, the negative pressure air path includes a negative pressure chamber and a connecting pipe R, with the negative pressure transmission unit 22 connected to the negative pressure chamber via the connecting pipe R. This increases the flexibility in the design location of the negative pressure mechanism 20.

[0074] Please see Figure 5 , Figure 5 This is a rear view schematic diagram of a second embodiment of the internal structure of the breast pump provided in this application. (See attached diagram.) Figure 5 As shown, by way of example, the negative pressure transmission unit 22 is connected to the negative pressure chamber via the connecting pipe R and the connecting part Q.

[0075] In some implementations, the material of the connecting pipe R includes plastic and silicone, etc.

[0076] Optionally, the hardness of the connecting tube R is less than that of the negative pressure transmission part 22. For example, the connecting tube R is a silicone hose.

[0077] like Figure 3 and Figure 5 As shown, in some embodiments, the negative pressure generating part 21 is located at the upper part of the milk channel part 11, and the negative pressure conveying part 22 is at least partially level with or exceeds the top of the lower part of the milk channel part 11.

[0078] Optionally, when the negative pressure chamber is located at the lower part of the milk channel section 11, the negative pressure generating section 21 can be located at the upper part of the milk channel section 11, and the negative pressure conveying section 22 is at least partially level with or exceeds the top of the lower part of the milk channel section 11. In this way, the negative pressure generating section 21 does not need to be located near the negative pressure chamber, which improves the flexibility of space utilization within the breast pump 1.

[0079] In other embodiments, the negative pressure generating part 21 is located at the lower part of the milk channel part 11, and the negative pressure conveying part 22 is at least partially level with or extends beyond the bottom end of the upper part of the milk channel part 11.

[0080] Optionally, when the negative pressure chamber is located at the upper part of the milk channel section 11, the negative pressure generating section 21 is located at the lower part of the milk channel section 11, and the negative pressure conveying section 22 is at least partially level with or extends beyond the bottom end of the upper part of the milk channel section 11. In this way, the negative pressure generating section 21 does not need to be located near the negative pressure chamber, which improves the flexibility of space utilization within the breast pump 1.

[0081] Optionally, the negative pressure mechanism 20 is one unit.

[0082] In some embodiments, there are at least two negative pressure mechanisms 20, which are arranged around the milk channel portion 11. In this way, the thickness of the breast pump 1 can be reduced compared to vertically stacking the negative pressure mechanisms 20. Furthermore, the center of gravity of the breast pump 1 can be kept approximately in the center of the breast pump 1, making it less likely for the breast pump 1 to tip over.

[0083] Optionally, the negative pressure mechanism 20 can be 2, 3 or 4, etc.

[0084] like Figure 3 and Figure 5 As shown, by way of example, there are two negative pressure mechanisms 20, which are arranged around the milk channel section 11.

[0085] In some embodiments, the positions of at least two negative pressure mechanisms 20 are symmetrical about the vertical central axis Z of the milk channel portion 11. In this way, the center of gravity of the breast pump 1 can be kept on the central axis Z of the breast pump 1, thereby making the breast pump 1 less likely to tilt to the left or right.

[0086] In some embodiments, at least two negative pressure mechanisms 20 are arranged around the milk channel portion 11, and the positions of the at least two negative pressure mechanisms 20 are symmetrical about the central axis Z of the milk channel portion 11 in the vertical direction.

[0087] like Figure 3 and Figure 5 As shown, by way of example, there are two negative pressure mechanisms 20, which are arranged around the milk channel portion 11 and are symmetrical about the central axis Z of the milk channel portion 11 in the vertical direction.

[0088] like Figure 3 and Figure 5 As shown, in some embodiments, the breast pump 1 further includes a power supply module 32, which provides energy to the negative pressure mechanism 20. The power supply module 32 is located at the bottom of the breast pump 1. In this way, the center of gravity of the breast pump 1 is located at the bottom of the breast pump 1, making the breast pump 1 less likely to tip over.

[0089] Optionally, both the power supply module 32 and the negative pressure mechanism 20 are located in the housing space of the main unit 30.

[0090] In some embodiments, the breast pump 1 further includes a control mechanism 31 for controlling the negative pressure mechanism 20 to operate.

[0091] In some embodiments, the power supply module 32 includes at least one of a battery and a power converter. When the power supply module 32 includes a battery, it can supply power from the battery to the negative pressure mechanism 20 and / or the control mechanism 31. When the power supply module 32 includes a power converter and the power converter is connected to a power source, it can supply power output from the power converter to the negative pressure mechanism 20 and / or the control mechanism 31.

[0092] In some embodiments, the center of gravity of the breast pump 1 is located below the segmented section. In this way, the breast pump 1 does not exert excessive pressure on the breast during the pumping process, which can improve the user's comfort during the pumping process and make the breast pump 1 less likely to tip over or fall off.

[0093] In summary, this application provides a breast pump 1, which includes a shield assembly 10 and a negative pressure mechanism 20. The shield assembly 10 is designed to fit against the user's breast and at least accommodate the user's nipple and receive milk. The negative pressure mechanism 20 is designed to apply negative pressure directly or indirectly to the shield assembly 10 to draw out milk. The shield assembly 10 includes a milk channel portion 11 and a flange 12. The flange 12 is connected to one end of the milk channel portion 11 and is designed to fit against the user's breast. The milk channel portion 11 is divided into an upper and a lower section by a cross-section, which is symmetrical about the central axis of the breast pump 1. The negative pressure mechanism 20 is at least partially located in or passes through the cross-section of the milk channel portion 11. By having the negative pressure mechanism 20 at least partially located in or passing through the cross-section of the milk channel portion 11, this application can reduce the vertical dimensions of the breast pump 1, making it easier to wear and improving its portability. Furthermore, it lowers the center of gravity of the breast pump 1, making it less likely to tip over or fall off. In addition, it prevents the negative pressure mechanism 20 from occupying the installation space of the milk storage container 40 below the milk channel section 11, thus facilitating the expansion of the capacity of the milk storage container 40.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A breast pump, characterized in that, The breast pump includes a shield assembly and a negative pressure mechanism. The shield assembly is designed to fit against the user's breast and at least accommodate the user's nipple and receive milk. The negative pressure mechanism is designed to apply negative pressure directly or indirectly to the shield assembly to draw out milk. The shield assembly includes a milk channel portion and a flange, the flange being connected to one end of the milk channel portion and used to conform to the user's breast. The milk channel section is divided into an upper part and a lower part by a cross section, and the cross section is symmetrical about the central axis of the breast pump. The negative pressure mechanism is at least partially located at or passes through the segmented section of the milk channel.

2. The breast pump according to claim 1, characterized in that, The segmented section is a horizontal plane; or The angle between the segmented section and the horizontal plane is within a preset angle range.

3. The breast pump according to claim 2, characterized in that, The segmented section passes through the center of the end of the milk channel that communicates with the flange; And / or, the segmented section passes through the center of the other end of the milk channel that is opposite to the end that communicates with the flange.

4. The breast pump according to claim 2, characterized in that, The preset angle range is [0 degrees, 30 degrees].

5. The breast pump according to claim 1, characterized in that, The negative pressure mechanism includes a negative pressure generating part and a negative pressure transmitting part connected to the negative pressure generating part. The negative pressure transmitting part is used to transmit negative pressure to the negative pressure air path of the breast pump to apply negative pressure to the shield assembly, thereby drawing milk.

6. The breast pump according to claim 5, characterized in that, The negative pressure transmission unit is at least partially located in or passes through the segmented cross section.

7. The breast pump according to claim 5, characterized in that, The negative pressure generating section is located at the upper part of the milk channel section, and the negative pressure transmitting section is at least partially level with or extends beyond the top of the lower part of the milk channel section; or... The negative pressure generating part is located at the lower part of the milk channel part, and the negative pressure transmitting part is at least partially level with or exceeds the bottom end of the upper part of the milk channel part.

8. The breast pump according to claim 5, characterized in that, The negative pressure generating part and the negative pressure transmitting part are integrally formed.

9. The breast pump according to claim 5, characterized in that, The negative pressure air path includes a negative pressure chamber, and the negative pressure transmission unit is directly connected to the negative pressure chamber.

10. The breast pump according to claim 5, characterized in that, The negative pressure air path includes a negative pressure chamber and a connecting pipe, and the negative pressure transmission part is connected to the negative pressure chamber through the connecting pipe.

11. The breast pump according to claim 1, characterized in that, The negative pressure mechanism comprises at least two components, which are arranged around the milk channel portion.

12. The breast pump according to claim 10, characterized in that, The positions of the at least two negative pressure mechanisms are symmetrical about the vertical central axis of the milk channel.

13. The breast pump according to claim 1, characterized in that, The breast pump also includes a power supply module, which provides energy to the negative pressure mechanism and is located at the bottom of the breast pump.

14. The breast pump according to claim 1, characterized in that, The center of gravity of the breast pump is located below the segmented cross-section.

Images