Breast pump

Abstract

The utility model relates to a breast pump. The breast pump comprises an air circuit board, a cover plate and a breast pumping channel. The cover plate is arranged on the air path plate, a flow guide channel is formed in the air path plate, the flow guide channel is communicated with the breast pumping channel, a plurality of flow guide holes are formed in the air path plate, and the flow guide holes are communicated with the flow guide channel; a connecting assembly is arranged on the side, away from the flow guide channel, of the gas circuit board and communicates with the flow guide hole. According to the breast pump, the hidden danger that a hose is disengaged or loosened due to hose connection in the prior art can be avoided, so that the purpose of improving the stability of the breast pump is achieved, the probability of air leakage of the breast pump is reduced, and the reliability is good.

Description

Technical Field

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

[0002] A breast pump is a device used to extract milk from the breast. It mimics the sucking motion of a baby to help mothers collect and store breast milk. Breast pumps in this technology typically have multiple air passages connected by flexible tubing. However, these tubing connections can be improperly installed, and after a period of use, the tubing may detach or loosen, causing air leaks and compromising reliability. Utility Model Content

[0003] In view of this, the present invention provides a breast pump that can reduce the probability of air leakage and has good reliability.

[0004] This utility model provides the following technical solution:

[0005] A breast pump includes: an air passage plate, a cover plate, and a milk expression channel;

[0006] The air circuit board is provided with a flow guide channel, which is connected to the milk suction channel. The air circuit board is provided with multiple flow guide holes, which are connected to the flow guide channel.

[0007] A connecting component is provided on the side of the air circuit board opposite to the flow channel. The connecting component is connected to the flow hole and is used to connect to the device in the breast pump.

[0008] In some embodiments, the flow guiding channel includes: a first flow guiding groove and a second flow guiding groove;

[0009] The first guide channel is connected to the second guide channel and the first guide channel intersects with the second guide channel. A first guide hole is provided at one end of the first guide channel, a second guide hole is provided at the end of the first guide channel away from the first guide hole, and a third guide hole is provided at the end of the second guide channel away from the first guide channel.

[0010] The second guide channel is connected to the breast pumping channel through a guide component.

[0011] In some implementations, it also includes: a cover plate;

[0012] The cover plate is disposed on the air passage plate, and the cover plate is used to seal the first guide groove and the second guide groove.

[0013] In some embodiments, the connection component includes: a first connector, a second connector, and a third connector;

[0014] The first connector, the second connector, and the third connector are all disposed on the side of the air passage plate away from the cover plate;

[0015] The first connector is connected to the first guide hole, the second connector is connected to the second guide hole, and the third connector is connected to the third guide hole.

[0016] In some embodiments, silicone is provided on the outer periphery of the first connector, the second connector, and the third connector.

[0017] In some embodiments, the breast pump also includes a milk bowl;

[0018] The milk suction channel is located in the milk bowl, which has a flow guide port that is detachably connected to the third connector.

[0019] In some embodiments, the breast pump further includes: a solenoid valve;

[0020] The solenoid valve has an exhaust port and an air inlet. The air inlet is plugged into the first connector. The solenoid valve is used to connect the breast pumping channel to the outside.

[0021] In some embodiments, the breast pump further includes a negative pressure pump;

[0022] The negative pressure pump has a connection port that is plugged into the second connector, and the negative pressure pump is used to generate negative pressure in the breast pumping channel.

[0023] In some implementations, a housing is also included;

[0024] The housing is provided with multiple threaded holes, and the air circuit board is provided with multiple through holes penetrating the air circuit board. The air circuit board is connected to the threaded holes by bolts passing through the through holes.

[0025] In some embodiments, the first guide channel is provided with a first slot portion, the first slot portion is disposed around the outer periphery of the first guide channel, and the width of the first slot portion is greater than the width of the first guide channel;

[0026] The second guide channel is provided with a second slot portion, which is arranged around the outer periphery of the second guide channel, and the width of the second slot portion is greater than the width of the second guide channel.

[0027] In some embodiments, the cover plate includes a first covering portion and a second covering portion, wherein the first covering portion cooperates with the first slot portion and the second covering portion cooperates with the second slot portion.

[0028] The breast pump of this invention includes an air passage plate and a cover plate. The cover plate is disposed on the air passage plate, and a guide channel is provided on the air passage plate. The guide channel is connected to the milk suction channel. When the air pressure in the guide channel changes, the air pressure in the milk suction channel also changes accordingly. Multiple guide holes are provided in the guide channel, through which airflow can enter the guide channel and then enter the milk suction holes. A connecting component is provided on the side of the air passage plate opposite to the guide channel. The connecting component is connected to the guide holes and can be connected to the device in the breast pump. In this way, the device in the breast pump can be directly connected to the milk suction channel through the air passage plate, which can avoid the risk of hose detachment or loosening that exists in the prior art using hose connection, thereby improving the stability of the breast pump and reducing the probability of air leakage, resulting in better reliability. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 Exploded view of the gas passage plate and cover plate provided in the embodiment of this utility model;

[0031] Figure 2 One of the structural schematic diagrams of the gas circuit board provided in the embodiment of this utility model;

[0032] Figure 3 This is the second schematic diagram of the structure of the air passage plate provided in the embodiment of the present utility model;

[0033] Figure 4 One of the structural schematic diagrams of the breast pump provided in the embodiment of this utility model;

[0034] Figure 5 This is the second schematic diagram of the structure of the breast pump provided in the embodiment of the present utility model;

[0035] Figure 6 A schematic diagram of the shell structure provided for an embodiment of this utility model;

[0036] Figure 7 A schematic diagram of the mating structure of the air passage plate and the cover plate provided in this embodiment of the utility model;

[0037] Figure 8 The third schematic diagram of the air passage plate provided in the embodiment of this utility model;

[0038] Figure 9 This is a schematic diagram of the structure of the cover plate provided in an embodiment of the present utility model.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100-Breast pump; 10-Air circuit board; 11-Flow guide channel; 111-First flow guide groove; 1111-First slot; 112-Second flow guide groove; 1121-Second slot; 12-Flow guide hole; 121-First flow guide hole; 122-Second flow guide hole; 123-Third flow guide hole; 13-Through hole; 14-Silicone; 20-Cover plate; 21-First cover; 22-Second cover; 30-Breast pumping channel; 40-Connecting assembly; 41-First connector; 42-Second connector; 43-Third connector; 50-Milk bowl; 51-Flow guide port; 60-Negative pressure pump; 61-Connection port; 70-Solenoid valve; 71-Exhaust port; 72-Air inlet; 80-Housing shell; 81-Threaded hole. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0043] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] A breast pump is a device used to extract milk from the breast, mimicking the sucking motion of a baby to help mothers collect and store breast milk. Breast pumps in this technology typically have multiple air passages connected by flexible tubing. However, these tubing connections can be improperly installed and may detach after a period of use, causing air leaks. Furthermore, the tubing connections can make the inside of the breast pump messy and cluttered, and assembly is more complex and time-consuming.

[0045] Therefore, this embodiment provides a breast pump 100. The breast pump 100 can reduce the probability of air leakage and has good reliability.

[0046] Please see Figure 1 , Figure 2 and Figure 4 A breast pump 100 includes: an air passage plate 10, a cover plate 20, and a milk suction channel 30;

[0047] The cover plate 20 is disposed on the air passage plate 10, the air passage plate 10 is provided with a flow guide channel 11, the flow guide channel 11 is connected to the milk suction channel 30, and the air passage plate 10 is provided with a plurality of flow guide holes 12, the plurality of flow guide holes 12 are connected to the flow guide channel 11;

[0048] A connecting component 40 is provided on the side of the air circuit board 10 away from the flow channel 11. The connecting component 40 is connected to the flow hole 12 and is used to connect to the device in the breast pump 100.

[0049] The breast pump 100 of this invention includes an air circuit board 10, on which a guide channel 11 is provided. The guide channel 11 is inserted into the milk suction channel 30, so that the guide channel 11 and the milk suction channel 30 are connected. When the air pressure in the guide channel 11 changes, the air pressure in the milk suction channel 30 also changes accordingly. A plurality of guide holes 12 are provided on the air circuit board 10. The guide holes 12 are located in the guide channel 11, and the airflow can enter the guide channel 11 through the guide holes 12, and then the airflow enters the milk suction channel 30. A connecting component 40 is provided on the side of the air circuit board 10 away from the guide channel 11. The connecting component 40 is connected to the guide holes 12 and can be connected to the device in the breast pump 100. In this way, the device in the breast pump 100 can be directly connected to the milk suction channel 30 through the air circuit board 10, so as to improve the stability of the breast pump 100.

[0050] Understandably, at least one flow channel 11 is provided in the air circuit board 10. The flow channel 11 is connected to the breast pumping channel 30. Multiple flow holes 12 can be provided in the flow channel 11. All the multiple flow holes 12 are connected to the flow channel 11. In this way, the airflow can enter the flow channel 11 through the flow holes 12, and then enter the breast pumping channel 30 through the flow channel 11. Alternatively, the airflow in the breast pumping channel can be drawn out through the flow channel to achieve the purpose of guiding the airflow.

[0051] Understandably, a connecting component 40 is provided on the side of the air circuit board 10 away from the guide channel 11. The connecting component 40 has a connection port 61 for connecting with the device in the breast pump 100. The device can be installed on the connection port 61 in a quick connection manner, which can realize the quick connection between the air circuit board 10 and the device in the breast pump 100. At the same time, it can avoid the hidden danger of hose detachment or loosening that exists in the prior art using hose connection, so as to improve the stability of the breast pump 100, thereby reducing the probability of air leakage of the breast pump 100 and improving the reliability of the breast pump.

[0052] Please see Figure 2 In some embodiments, the flow channel 11 includes: a first flow channel 111 and a second flow channel 112;

[0053] The first guide channel 111 is connected to the second guide channel 112, and the first guide channel 111 and the second guide channel 112 intersect. One end of the first guide channel 111 is provided with a first guide hole 121, the end of the first guide channel 111 away from the first guide hole 121 is provided with a second guide hole 122, and the end of the second guide channel 112 away from the first guide channel 111 is provided with a third guide hole 123.

[0054] The second guide channel 112 is connected to the breast pumping channel 30 via the connecting component 40.

[0055] Understandably, the flow channel 11 includes a first flow channel 111 and a second flow channel 112, and the first flow channel 111 and the second flow channel 112 are connected. This allows the flow channel 11 to adapt to the different positions of the components in the breast pump 100, facilitating the connection between the devices in the breast pump 100 and the air circuit board 10. The first flow channel 111 and the second flow channel 112 are connected, so the airflow in the first flow channel 111 can flow into the second flow channel 112 through the first flow channel 111, and then flow into the milk suction channel 30 through the second flow channel 112, thereby changing the pressure inside the milk suction channel 30.

[0056] Understandably, the first guide groove 111 and the second guide groove 112 can be arranged in a T-shape on one side of the air passage plate 10. The first guide groove 111 is provided with a first guide hole 121 and a second guide hole 122. The second guide groove 112 is provided with a third guide hole 123 at the end away from the first guide groove 111. The first guide hole 121, the second guide hole 122, and the third guide hole 123 all extend to the other side of the air passage plate 10. The first guide hole 121 and the second guide hole 122 are disposed opposite to each other at both ends of the first guide groove 111. Both the first guide hole 121 and the second guide hole 122 are connected to the first guide groove 111, so that the first guide hole 121 and the second guide hole 122 can change the air pressure in the first guide groove 111 and the second guide groove 112. The second guide groove 112 is connected to the breast pumping channel 30. Therefore, by injecting or extracting airflow into the first guide hole 121 and the second guide hole 122, the air pressure in the first guide groove 111 and the second guide groove 112 can be changed, thereby achieving the purpose of adjusting the air pressure in the breast pumping channel 30.

[0057] In some embodiments, it also includes: a cover plate 20;

[0058] The cover plate 20 is disposed on the air passage plate 10, and the cover plate 20 is used to seal the first guide groove 111 and the second guide groove 112.

[0059] It is understandable that the flow channel 11 can be directly set in the air circuit plate 10, or the flow channel 11 can be realized by opening a groove on the air circuit plate 10. When the flow channel 11 is realized by opening a groove on the air circuit plate 10, a cover plate 20 is provided above the flow channel 11 to make the flow channel 11 a sealed cavity. At this time, the cover plate 20 is set in the groove.

[0060] Please see Figure 3 In some embodiments, the connecting component 40 includes: a first connector 41, a second connector 42, and a third connector 43;

[0061] The first connector 41, the second connector 42, and the third connector 43 are all disposed on the side of the air passage plate 10 away from the cover plate 20;

[0062] The first connector 41 is connected to the first guide hole 121, the second connector 42 is connected to the second guide hole 122, and the third connector 43 is connected to the third guide hole 123.

[0063] Understandably, the connecting component 40 includes a first connector 41, a second connector 42, and a third connector 43. The first connector 41, the second connector 42, and the third connector 43 are disposed on the side of the air passage plate 10 away from the cover plate 20. The relevant devices in the breast pump 100 are connected to the air passage plate 10 through the first connector 41, the second connector 42, and the third connector 43. The first connector 41 is connected to the first guide hole 121, the second connector 42 is connected to the second guide hole 122, and the third connector 43 is connected to the third guide hole 123. In this way, the relevant devices in the breast pump 100 can be connected to the air passage plate 10 through the first connector 41, the second connector 42, and the third connector 43. The relevant devices in the breast pump 100 can change the air pressure in the first guide groove 111 and the second guide groove 112, thereby changing the air pressure in the milk suction channel 30 and achieving the purpose of guiding airflow.

[0064] Please see Figure 3 In some embodiments, silicone 14 is provided on the outer periphery of the first connector 41, the second connector 42, and the third connector 43.

[0065] Understandably, silicone 14 is provided on the outer periphery of the first connector 41, the second connector 42, and the third connector 43. The silicone 14 can be compressed. When the first connector 41, the second connector 42, or the third connector 43 is connected to the relevant equipment in the breast pump 100, the connection port 61 on the relevant equipment can compress the silicone 14 provided on the first connector 41, the second connector 42, and the third connector 43. By compressing the silicone 14, the connection port 61 of the relevant equipment can play a sealing role after being connected to the first connector 41, the second connector 42, and the third connector 43, so as to achieve the purpose of sealing the connection.

[0066] Please see Figure 4 or Figure 5 In some embodiments, the breast pump 100 also includes a milk bowl 50;

[0067] The milk suction channel 30 is disposed in the milk bowl 50, and the milk bowl 50 has a flow guide 51, which is detachably connected to the third connector 43.

[0068] Understandably, the breast pump 100 also includes a milk bowl 50, a milk suction channel 30 is set in the milk bowl 50, and a guide port 51 is also provided in the milk bowl 50; wherein, the guide port 51 is detachably connected to the third connector 43. When the guide port is installed on the third connector, the guide port is connected to the third connector, so that the airflow can enter the milk suction channel 30 through the guide channel 11.

[0069] After each use of the breast pump 100, the milk bowl 50 and the milk channel 30 can be cleaned. Therefore, the third connector 43 is detachably connected to the guide port 51, which facilitates the cleaning of the milk bowl 50. After each use of the breast pump 100, the milk bowl 50 can be removed from the breast pump 100 for cleaning.

[0070] Please see Figure 5 In some embodiments, the breast pump 100 further includes a negative pressure pump 60;

[0071] The negative pressure pump 60 has a connection port 61, which is inserted into the second connector 42. The negative pressure pump 60 is used to generate negative pressure in the breast pumping channel 30.

[0072] Understandably, the breast pump 100 also includes a negative pressure pump 60, which is installed within the breast pump 100 and has a connection port 61. The negative pressure pump 60 is connected to the second connector 42 through the connection port 61. When the negative pressure pump 60 is working, it draws air out of the air passage plate 10. Since the air passage plate 10 is also connected to the milk suction channel 30, the negative pressure pump 60 can also draw air out of the milk suction channel 30, creating negative pressure within the milk suction channel 30. When negative pressure is generated within the milk suction channel 30, the nipple is stretched, resulting in milk secretion. When a pause is needed, the negative pressure pump 60 can be stopped, thus achieving the purpose of milk expression.

[0073] Please see Figure 5 In some embodiments, the breast pump 100 further includes a solenoid valve 70;

[0074] The solenoid valve 70 has an exhaust port 71 and an air inlet 72. The air inlet 72 is inserted into the first connector 41. The solenoid valve 70 is used to connect the breast pumping channel 30 to the outside.

[0075] Understandably, the breast pump 100 also includes a solenoid valve 70, which is disposed in the breast pump 100. The solenoid valve 70 is provided with an exhaust port 71 and an air inlet 72. The air inlet 72 is connected to the second connector 42. The solenoid valve 70 is used to connect the outside of the air passage plate 10 with the inside of the air passage plate 10, so that the air pressure inside the air passage plate 10 is the same as the atmospheric pressure.

[0076] Please see Figure 6 In some embodiments, it further includes: a housing 80;

[0077] The housing 80 is provided with a plurality of threaded holes 81, and the air circuit plate 10 is provided with a plurality of through holes 13 penetrating the air circuit plate 10. The air circuit plate 10 is connected to the threaded holes 81 by bolts passing through the through holes 13.

[0078] Understandably, the breast pump 100 also includes a housing 80, which is shaped to fit the milk bowl 50. The housing 80 can be detachably or fixedly connected to the milk bowl 50. The two can be fixedly connected by means of glue, welding, etc., or detachably connected by means of snap-fit ​​connection, etc.

[0079] Understandably, the housing 80 has multiple threaded holes 81, and the air circuit plate 10 has multiple through holes 13. The air circuit plate 10 can be fixed to the housing 80 by screws passing through the through holes 13 and threaded holes 81. Furthermore, the shape of the air circuit plate 10 is adapted to the shape of the housing 80, so the air circuit plate 10 can be directly installed onto the housing 80. Then, the cover plate 20 is placed on the air circuit plate 10, making the air circuit plate 10, cover plate 20, and housing 80 a whole. This reduces the space occupied inside the breast pump 100, thereby improving the stability of the breast pump 100.

[0080] Please see Figure 7 and Figure 8 In some embodiments, the first guide channel 111 is provided with a first slot portion 1111, the first slot portion 1111 is arranged around the outer periphery of the first guide channel 111, and the width of the first slot portion 1111 is greater than the width of the first guide channel 111.

[0081] The second guide channel 112 is provided with a second slot portion 1121, which is arranged around the outer periphery of the second guide channel 112, and the width of the second slot portion 1121 is greater than the width of the second guide channel 112.

[0082] Understandably, a first slot 1111 is provided on the first guide channel 111. The first slot 1111 is arranged around the outer periphery of the first guide channel 111, and the width of the first guide channel 111 is greater than the width of the first guide channel 111, thus making the first slot have a step. Similarly, a second slot 1121 is provided on the second guide channel 112, and the width of the second slot 1121 is greater than the width of the second guide channel 112, thus making the first guide channel 111 have a step. The step is the first slot 1111 and the second slot 1121, and the first slot 1111 and the second slot 1121 are connected. This allows the cover plate 20 to be an integral cover plate 20, allowing the cover plate 20 to be installed on the air passage plate 10, and allowing the air passage plate 10 to be sealed by the cover plate 20.

[0083] Understandably, setting the depth of the first slot 1111 and the second slot 1121 to be the same as the thickness of the cover plate 20 makes it possible for the cover plate 20 and the air circuit plate 10 to form a flat plane after the cover plate 20 is installed on the air circuit plate 10. This also makes the breast pump 100 more aesthetically pleasing and reduces the size of the breast pump 100.

[0084] Please see Figure 9 In some embodiments, the cover plate 20 includes a first covering portion 21 and a second covering portion 22, wherein the first covering portion 21 cooperates with the first slot portion 1111 and the second covering portion 22 cooperates with the second slot portion 1121.

[0085] Understandably, the cover plate 20 includes a first covering portion 21 and a second covering portion 22. The shape of the first covering portion 21 is adapted to the shape of the first slot portion 1111, and the shape of the second covering portion 22 is adapted to the shape of the second slot portion 1121. The first covering portion 21 is used to cooperate with the first slot portion 1111, and the second covering portion 22 is used to cooperate with the second slot portion 1121. That is, the first covering portion 21 covers the first slot portion 1111, and the second covering portion 22 covers the second slot portion 1121. This allows the first covering portion 21 and the second covering portion 22 to provide a good sealing effect on the air passage plate 10 when the first covering portion 21 is installed on the first slot portion 1111 and the second covering portion 22 is installed on the second slot portion 1121.

[0086] In some embodiments, in order to enable the first slot portion 1111 and the second slot portion 1121 to play a better sealing role, a sealing element is provided on both the first slot portion 1111 and the second slot portion 1121. When the first cover portion 21 and the second cover portion 22 are installed on the first slot portion 1111 and the second slot portion 1121, the sealing element can contact the first slot portion 1111 and the second slot portion 1121 to further enhance the sealing effect of the cover plate 20 on the air passage plate 10 and achieve the purpose of reducing air leakage of the air passage plate 10.

[0087] In this utility model, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this utility model can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this utility model can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this utility model, provided there is no contradiction between them.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model should not depart from the spirit and scope of the technical solution of this utility model.

Claims

1. A breast pump, characterized in that, include: Air passage plate, cover plate, breast pumping channel; The air circuit board is provided with a flow guide channel, which is connected to the milk suction channel. The air circuit board is provided with multiple flow guide holes, which are connected to the flow guide channel. A connecting component is provided on the side of the air circuit board opposite to the flow channel. The connecting component is connected to the flow hole and is used to connect to the device in the breast pump.

2. The breast pump according to claim 1, characterized in that, The flow guiding channel includes: a first flow guiding groove and a second flow guiding groove; The first guide channel is connected to the second guide channel and the first guide channel intersects with the second guide channel. A first guide hole is provided at one end of the first guide channel, a second guide hole is provided at the end of the first guide channel away from the first guide hole, and a third guide hole is provided at the end of the second guide channel away from the first guide channel. The second guide channel is connected to the breast pumping channel through a guide component.

3. The breast pump according to claim 2, characterized in that, Also includes: Cover plate; The cover plate is disposed on the air passage plate, and the cover plate is used to seal the first guide groove and the second guide groove.

4. The breast pump according to claim 2, characterized in that, The connecting component includes: a first connector, a second connector, and a third connector; The first connector, the second connector, and the third connector are all disposed on the side of the air passage plate away from the cover plate; The first connector is connected to the first guide hole, the second connector is connected to the second guide hole, and the third connector is connected to the third guide hole.

5. The breast pump according to claim 4, characterized in that, The outer periphery of the first connector, the second connector, and the third connector is provided with silicone.

6. The breast pump according to claim 4, characterized in that, The breast pump also includes a milk bowl; The milk suction channel is located in the milk bowl, which has a flow guide port that is detachably connected to the third connector.

7. The breast pump according to claim 4, characterized in that, The breast pump also includes: a solenoid valve; The solenoid valve has an exhaust port and an air inlet. The air inlet is plugged into the first connector. The solenoid valve is used to connect the breast pumping channel to the outside.

8. The breast pump according to claim 4, characterized in that, The breast pump also includes: a negative pressure pump; The negative pressure pump has a connection port that is plugged into the second connector, and the negative pressure pump is used to generate negative pressure in the breast pumping channel.

9. The breast pump according to claim 1, characterized in that, It also includes the casing; The housing is provided with multiple threaded holes, and the air circuit board is provided with multiple through holes penetrating the air circuit board. The air circuit board is connected to the threaded holes by bolts passing through the through holes.

10. The breast pump according to claim 2, characterized in that, The first guide channel is provided with a first slot portion, which is arranged around the outer periphery of the first guide channel, and the width of the first slot portion is greater than the width of the first guide channel. The second guide channel is provided with a second slot portion, which is arranged around the outer periphery of the second guide channel, and the width of the second slot portion is greater than the width of the second guide channel.

11. The breast pump according to claim 10, characterized in that, The cover plate includes a first covering portion and a second covering portion, wherein the first covering portion cooperates with the first slot portion and the second covering portion cooperates with the second slot portion.

Images