Breast pump

Abstract

The present application discloses a breast pump, comprising: a breast shield, a collection bowl, and a main unit. The breast shield comprises a flange and a nipple accommodation part. One side of the flange is configured for fitting the breast, and the other side of the flange is connected to the nipple accommodation part. The bowl rim of the collection bowl and the flange define a storage cavity. A pouring spout is formed at the edge of the bowl rim. The pouring spout extends in the radial direction of the collection bowl and is in communication with the storage cavity. The pouring spout protrudes towards the exterior of the collection bowl, and a placement position is formed on the side of the collection bowl away from the breast shield. The main unit comprises a housing and a negative-pressure assembly. The housing is detachably arranged at the placement position. The negative-pressure assembly is arranged in the housing and is configured for providing a negative pressure to the nipple accommodation part.

Description

Breast pump

[0001] The present application claims priority to Chinese Patent Application No. 202420706164.5, filed on April 7, 2024, and Chinese Patent Application No. 202420693328.5, filed on April 7, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of mother and baby products, in particular to a breast pump. BACKGROUND

[0003] A breast pump is a tool for expressing milk accumulated in the mammary glands, which is generally used when a baby cannot directly suckle milk or when a mother is away from the baby but still wants to breastfeed.

[0004] Most of the existing breast pumps discharge milk through a milk outlet, and the milk discharge is greatly affected by atmospheric pressure, which is not smooth enough. TECHNICAL SOLUTION

[0005] The main purpose of the present application is to provide a breast pump, which aims to facilitate the user to pour milk.

[0006] To achieve the above purpose, the breast pump provided by the present application comprises a breast shield, a milk collection bowl and a main machine. The breast shield comprises a flange and a nipple accommodating portion. One side of the flange is used to fit the breast, and the other side of the flange is connected with the nipple accommodating portion. The bowl opening of the milk collection bowl and the flange can be enclosed to form a milk storage cavity. The edge of the bowl opening forms a milk outlet groove. The milk outlet groove extends along the radial direction of the milk collection bowl and communicates with the milk storage cavity. The milk outlet groove protrudes outward from the milk collection bowl. The side of the milk collection bowl away from the breast shield forms a placing position. The main machine comprises a shell and a negative pressure assembly. The shell is detachably arranged in the placing position. The negative pressure assembly is arranged in the shell. The negative pressure assembly is used to provide negative pressure in the nipple accommodating portion.

[0007] In an embodiment of the present application, the edge of the milk outlet groove away from the center is outwardly convexly provided with a lip. The main machine is detachably clamped between the milk collection bowl and the lip.

[0008] In an embodiment of the present application, the shell is formed with a groove. When the main machine is installed in the milk collection bowl, the groove cooperates with the outer wall of the milk outlet groove.

[0009] In an embodiment of the present application, a gas guide tube is convexly arranged on the milk collection bowl. A negative pressure air hole is formed on the surface of the shell. The gas guide tube is used to pass through the negative pressure air hole and communicate with the negative pressure assembly, so as to transmit negative pressure to the nipple accommodating portion.

[0010] In an embodiment of the present application, the stop direction of the lip is the same as the extending direction of the air duct.

[0011] In an embodiment of the present application, the front side of the shell is provided with a fixing portion, and the milk collecting bowl is provided with a fixing groove, when the main machine is installed on the milk collecting bowl, the fixing portion is clamped in the fixing groove.

[0012] In an embodiment of the present application, the fixing portion is provided with a plug-in portion, and the fixing groove is provided with a plug-in groove, when the main machine is installed on the milk collecting bowl, the plug-in portion is inserted into the plug-in groove.

[0013] In an embodiment of the present application, the opposite sides of the shell are provided with handholds.

[0014] In an embodiment of the present application, the breast pump further comprises a duckbill valve, one end of the duckbill valve is in communication with the nipple accommodating portion, and the other end is a duckbill end, the duckbill end is in communication with the milk collecting bowl.

[0015] In an embodiment of the present application, the outer periphery of the flange is formed with a folded portion to cover the opening edge of the milk collecting bowl, and the folded portion is formed with a notch to avoid the slot of the milk returning groove.

[0016] In an embodiment of the present application, the nipple accommodating portion has a breast pumping channel with two open ends, the other side of the flange is integrally formed with one opening of the nipple accommodating portion, and the connection between the nipple accommodating portion and the flange includes a hard rubber portion and a soft rubber portion wrapped outside the hard rubber portion.

[0017] In an embodiment of the present application, the hard rubber portion and the soft rubber portion are formed by encapsulation.

[0018] In an embodiment of the present application, the part of the flange away from the nipple accommodating portion is made of soft rubber material.

[0019] In an embodiment of the present application, the hard rubber portion extends in a direction away from the flange to form a connecting portion, the connecting portion is made of hard rubber material, and the part of the connecting portion away from the hard rubber portion is used to connect an air bag, and the breast pumping shield is subjected to negative pressure through the air bag.

[0020] In an embodiment of the present application, the hard rubber portion is provided with a milk outlet, and the nipple accommodating portion further comprises a one-way valve, one end of the one-way valve is connected with the milk outlet, and the other end is located in the milk storage cavity.

[0021] In an embodiment of the present application, the soft rubber portion extends in a direction away from the flange, and part of the soft rubber portion extends into the connecting portion.

[0022] In an embodiment of the present application, the outer edge of the flange is provided with a folded portion, the bowl opening edge of the milk collecting bowl is connected with the folded portion in a snap-fit manner, the folded portion is made of soft rubber material, and is used to connect with the bowl opening edge of the milk collecting bowl to form a milk storage cavity.

[0023] In an embodiment of the present application, opposite sides of the outer periphery of the nipple accommodating portion are provided with guide wings, a guide surface is formed in the milk collecting bowl, and the guide wings abut against the guide surface to position the relative positions of the nipple accommodating portion and the milk collecting bowl.

[0024] In an embodiment of the present application, the inner wall of the milk collecting bowl is provided with a negative pressure chamber for connecting with a negative pressure source, the negative pressure chamber is connected with the other opening of the nipple accommodating portion to form a negative pressure space, and a gas bag is arranged between the negative pressure chamber and the nipple accommodating portion. Advantages

[0025] The breast pump provided by the technical scheme of the present application comprises a breast shield, a milk collecting bowl and a main machine. The breast shield comprises a flange and a nipple accommodating portion. One side of the flange is used to adhere to a breast, and the other side is connected with the nipple accommodating portion. The bowl opening of the milk collecting bowl is connected with the flange to form a milk storage cavity. The edge of the bowl opening is recessed in a direction away from the flange to form a milk pouring groove. The milk stored in the accommodating cavity of the milk collecting bowl can be poured out through the milk pouring groove. The milk pouring groove plays a guiding role in the outflow of the milk, so that the milk is more easily poured out of the milk collecting bowl. The milk pouring groove extends along the radial direction of the milk collecting bowl, so that the pouring of the milk is more smooth. The side of the milk collecting bowl away from the breast shield is provided with a placing position. The shell of the main machine is detachably arranged on the placing position. The main machine can be conveniently detached, the overall weight is reduced, and the user can use the milk collecting bowl to pour milk or clean the milk collecting bowl. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0027] Fig. 1 is a structural schematic view of an embodiment of the breast pump of the present application;

[0028] Fig. 2 is an exploded view of another embodiment of the breast pump of the present application;

[0029] Fig. 3 is an exploded view of still another embodiment of the breast pump of the present application;

[0030] Fig. 4 is a structural schematic view of an embodiment of the main machine in the breast pump of the present application;

[0031] Fig. 5 is a structural schematic diagram of an embodiment of the breast pump of the present application;

[0032] Fig. 6 is a sectional view of A-A in Fig. 5;

[0033] Fig. 7 is an exploded view of another embodiment of the breast pump of the present application;

[0034] Fig. 8 is a structural schematic diagram of an embodiment of the breast shield of the present application;

[0035] Fig. 9 is a structural schematic diagram of an embodiment of the milk collection bowl in the milk collection assembly of the present application.

[0036] Explanation of reference numerals:

[0037] Reference numeral Name Reference numeral Name 100 breast pump 25 fixed groove 1 breast shield 251 plug-in groove 11 flange 3 main body 111 folded part 31 shell 12 nipple accommodating part 311 recess 2 milk collection bowl 312 negative pressure air hole 21 milk storage cavity 313 fixed part 22 milk discharge groove 3131 plug-in part 221 lip 314 buckle position 23 placement position 4 duckbill valve 24 air guide pipe 10 milk collection assembly 41 hard rubber part 112 soft rubber part 113 connecting part 114 milk outlet 115 one-way valve 116 guide wing 42 guide surface 43 negative pressure chamber 44 air bag

[0038] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. Embodiments of the present application

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0041] In addition, the descriptions involving "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0042] Most of the existing breast pumps are through the milk outlet hole to pour out the milk, the milk pouring is affected by the atmospheric pressure, and the milk pouring is not smooth enough. Therefore, the present application provides a breast pump which is convenient for pouring milk.

[0043] The present application provides a breast pump 100.

[0044] In the embodiment of the present application, as shown in Figure 1, the breast pump 100 comprises a breast shield 1, a milk collection bowl 2 and a main machine 3, the breast shield 1 comprises a flange 11 and a nipple accommodating portion 12, one side of the flange 11 is used to fit the breast, and the other side of the flange 11 is connected with the nipple accommodating portion 12; the bowl mouth of the milk collection bowl 2 and the flange 11 can be enclosed to form a milk storage cavity 21, the edge of the bowl mouth is formed with a milk pouring groove 22, the milk pouring groove 22 extends along the radial direction of the milk collection bowl 2 and communicates with the milk storage cavity 21, the milk pouring groove 22 protrudes outward of the milk collection bowl 2, and the side of the milk collection bowl 2 away from the breast shield 1 is formed with a placing position 23; the main machine 3 comprises a shell 31 and a negative pressure assembly, the shell 31 is detachably arranged at the placing position 23, and the negative pressure assembly is arranged in the shell 31, and the negative pressure assembly is used to provide negative pressure in the nipple accommodating portion 12.

[0045] In this embodiment, the breast shield 1 includes a flange 11 and a nipple receiving portion 12, the nipple receiving portion 12 is open at both ends and penetrates through, used for accommodating the nipple, the material of the nipple receiving portion 12 can be rigid material, such as plastic, metal pipe, glass tube and the like, or flexible material or semi-flexible material, such as rubber or silicone and the like, which is not limited here. The flange 11 is made of flexible material, such as rubber or silicone and the like, when negative pressure is applied to the flange 11, the flange 11 can be deformed, the negative pressure is transmitted to the breast of the user, further improve the efficiency of milk expression. The material of the milk collecting bowl 2 should be safe, non-toxic, light and convenient, such as plastic and the like, the general shape of the milk collecting bowl 2 is bowl-shaped, in order to assemble the milk collecting bowl 2 and the breast shield 1 into a whole, the side of the milk collecting bowl 2 facing the breast shield 1 is formed with a avoiding position. The edge of the bowl opening of the milk collecting bowl 2 is formed with a milk pouring groove 22, the milk pouring groove 22 protrudes towards the outside of the milk collecting bowl 2, the milk pouring groove 22 is communicated with the accommodating cavity of the milk collecting bowl 2, the milk liquid is poured out from the milk collecting bowl 2 through the milk pouring groove 22, reduces the influence of atmospheric pressure on the milk liquid, and the milk pouring is more smooth. The placing position 23 on the milk collecting bowl 2 is generally a quarter of a spherical shape, having two mutually perpendicular placing planes, so as to install the main machine 3 of the breast pump 100 on the placing position 23. The shell 31 is provided with a negative pressure assembly, which can be a diaphragm pump, a piezoelectric pump, a hydraulic pump, a mechanical pump or a combination of the above pumps, which can directly apply negative pressure to the milk collecting bowl 2 or the breast shield 1 in a direct communication manner, or indirectly apply negative pressure to the breast shield 1 or the milk collecting bowl 2 through the elastic deformation of the elastic diaphragm or the elastic air bag and the like liquid barrier, which is not limited here. The shell 31 of the main machine 3 and the placing position 23 of the milk collecting bowl 2 are detachably connected, when pouring milk liquid or cleaning the milk collecting bowl, the main machine 3 can be detached from the placing position 23 of the milk collecting bowl 2, which reduces the overall weight and prevents the main machine 3 from falling or being damaged by water.

[0046] The breast pump 100 provided by the technical scheme of the present application includes a breast shield 1, a milk collecting bowl 2 and a main machine 3, the breast shield 1 includes a flange 11 and a nipple receiving portion 12, one side of the flange 11 is used to fit the breast, the other side is connected with the nipple receiving portion 12, the bowl opening of the milk collecting bowl 2 and the flange 11 form a milk storage cavity 21, the edge of the bowl opening is recessed in the direction away from the flange 11 to form a milk pouring groove 22, the milk stored in the accommodating cavity of the milk collecting bowl 2 can be poured out through the milk pouring groove 22, the milk pouring groove 22 plays a role of guiding the milk liquid to flow out, so that the milk liquid is more easily poured out from the milk collecting bowl 2. The milk pouring groove 22 extends along the radial direction of the milk collecting bowl 2, which can make the milk pouring more smooth. The side of the milk collecting bowl 2 away from the breast shield 1 is provided with a placing position 23, the shell 31 of the main machine 3 is detachably arranged on the placing position 23, which facilitates the detachment of the main machine 3, reduces the overall weight and facilitates the user to use the milk collecting bowl 2 to pour milk liquid or clean the milk collecting bowl 2.

[0047] In an embodiment of the present application, the lip 221 is outwardly protruded from the edge of the one end of the milk pouring groove 22 away from the center, and the main machine 3 is detachably clamped between the milk pouring groove 22 and the lip 221.

[0048] In the embodiment, as shown in FIG. 2, the lip 221 is outwardly protruded from the one end of the milk pouring groove 22 away from the center, which can prevent the milk from flowing down along the wall of the milk pouring groove 22 when the milk is poured, causing the pollution of the milk or the damage of the breast pump 100. In addition, the main machine 3 can be detachably clamped between the lip 221 and the placing position 23 of the milk collecting bowl 2, which can fix the main machine 3 in the vertical direction, preventing the main machine 3 from falling off the milk collecting bowl 2, causing the injury of the personnel and the damage of the main machine 3.

[0049] In an embodiment of the present application, as shown in FIG. 3, the shell 31 is formed with a groove 311, which cooperates with the outer wall of the milk pouring groove 22 when the main machine 3 is installed on the milk collecting bowl 2.

[0050] In the embodiment, the shell 31 is formed with the groove 311 on the surface facing the milk pouring groove 22. When the main machine 3 is installed on the placing position 23, the milk pouring groove 22 protrudes outwardly from the milk collecting bowl 2, so that the wall of the milk pouring groove 22 can abut against the wall of the groove 311, guiding the installation of the main machine 3, and limiting the installation position of the main machine 3 in the left-right horizontal direction, preventing the main machine 3 from falling off the milk collecting bowl 2, causing the injury of the personnel and the damage of the main machine 3.

[0051] In an embodiment of the present application, the milk collecting bowl 2 is protruded with the air guide pipe 24, and the surface of the shell 31 is formed with the negative pressure air hole 312, the air guide pipe 24 is used to pass through the negative pressure air hole 312 and communicate with the negative pressure assembly, so as to transmit the negative pressure to the nipple accommodating part 12.

[0052] In the embodiment, the milk collecting bowl 2 is protruded with the air guide pipe 24 away from the breast pump shield 1, and the air guide pipe 24 is hollow and communicates with the accommodating cavity in the milk collecting bowl 2. Correspondingly, as shown in FIG. 4, the surface of the shell 31 facing the milk collecting bowl 2 is formed with the negative pressure air hole 312, and the air guide pipe 24 passes through the negative pressure air hole 312 and is connected with the negative pressure assembly, so that the negative pressure assembly applies negative pressure to the milk collecting bowl 2, finally realizing the suction of the milk. The cooperation of the air guide pipe 24 and the negative pressure air hole 312 can also guide and limit the installation position of the main machine 3 in the horizontal front-rear direction, further improving the stability of the connection between the main machine 3 and the milk collecting bowl 2, preventing the main machine 3 from falling off the milk collecting bowl 2, causing the injury of the personnel and the damage of the main machine 3.

[0053] In an embodiment of the present application, the stop direction of the lip 221 is the same as the extension direction of the air guide pipe 24.

[0054] In the embodiment, the stop direction of the lip 221 is the same as the extension direction of the air duct 24, the stop direction of the lip 221 is the vertical direction of the main machine 3, the installation position of the main machine 3 in the vertical direction can be limited, the air duct 24 extends towards the vertical direction and extends into the negative pressure air hole 312 of the shell of the main machine 3, and communicates with the negative pressure assembly, and the installation position of the main machine 3 in the front-back direction can be limited, so as to prevent the main machine 3 from falling off the milk collecting bowl 2, causing personnel injury or damage to the main machine 3.

[0055] In an embodiment of the present application, the front side of the shell 31 protrudes a fixing portion 313, and the milk collecting bowl 2 is provided with a fixing groove 25, when the main machine 3 is installed on the milk collecting bowl 2, the fixing portion 313 is clamped in the fixing groove 25.

[0056] In the embodiment, the front side of the shell 31 protrudes a fixing portion 313, and the front side of the milk collecting bowl 2 is provided with a fixing groove 25, when the main machine 3 is installed on the milk collecting bowl 2, the fixing portion 313 is clamped in the fixing groove 25, the fixing portion 313 is located at the central position of the front side of the breast pump 100, and the fixing portion 313 extends along the vertical direction of the normal use state of the breast pump 100.

[0057] In an embodiment of the present application, the fixing portion 313 protrudes a plug-in portion 3131, and the fixing groove 25 is provided with a plug-in groove 251, when the main machine 3 is installed on the milk collecting bowl 2, the plug-in portion 3131 is inserted into the plug-in groove 251.

[0058] In the embodiment, the edge of the fixing portion 313 protrudes a plug-in portion 3131, and the fixing groove 25 is provided with a plug-in groove 251, the plug-in portion 3131 is inserted into the plug-in groove 251, and the cooperation between the plug-in portion 3131 and the plug-in groove 251 limits the relative movement of the main machine 3 and the milk collecting bowl 2 in the front-back direction, which can further improve the connection strength between the shell 31 of the main machine 3 and the milk collecting bowl 2, prevent the main machine 3 from falling off the milk collecting bowl 2, and cause personnel injury and damage to the main machine 3.

[0059] In an embodiment of the present application, the opposite sides of the shell 31 protrude a hand buckle position 314.

[0060] In the embodiment, the shell 31 is provided with a buckle position 314 on each side, which is close to the breast shield 1. When the main machine 3 needs to be taken out, the user can first unhook the main machine 3 and the lip 221 by applying force on the buckle position 314, and then take out the main machine 3. When the main machine 3 is installed on the milk collection bowl 2, one side of the main machine 3 is inserted into the air guide pipe 24, and the other side abuts between the milk collection bowl 2 and the lip 221. The stop direction of the lip 221 is the same as the extension direction of the air guide pipe 24. At the same time, the fixing part 313 is inserted into the fixing groove 25, and the insertion part 3131 is inserted into the insertion groove 251. In this way, the main machine 3 and the milk collection bowl 2 can be fixed to each other. When disassembling, the main machine 3 and the lip 221 can be first released by the buckle position 314, and then the main machine 3 is removed away from the air guide pipe 24, which is convenient and easy to disassemble.

[0061] In an embodiment of the present application, the breast pump 100 further comprises a duckbill valve 4, one end of which communicates with the nipple accommodating part 12, and the other end is a duckbill end which communicates with the milk collection bowl 2.

[0062] In the embodiment, in order to prevent backflow of milk, causing pollution or waste, the breast pump 100 is provided with a duckbill valve 4, one end of which communicates with the nipple accommodating part 12, and the other end is a duckbill end, through which liquid can only flow out in one direction and cannot flow in, achieving the effect of milk check valve.

[0063] In an embodiment of the present application, the outer periphery of the flange 11 is formed with a folding part 111 to cover the opening edge of the milk collection bowl 2. The folding part 111 is formed with a notch to avoid the notch of the milk pouring groove 22.

[0064] In the embodiment, the outer periphery of the flange 11 is formed with a folding part 111, which is used to cover and limit the opening edge of the milk collection bowl 2, and improve the connection strength and sealing performance between the milk collection bowl 2 and the flange 11. The folding part 111 is formed with a notch to avoid the notch of the milk pouring groove 22, so as to facilitate the pouring of milk from the milk pouring groove 22.

[0065] In an example, the breast milk collection bowl 2 is provided with a negative pressure chamber in a direction towards the breast pump shield 1, and a negative pressure space is formed in the negative pressure chamber. The negative pressure space is communicated with a negative pressure assembly through a negative pressure hole 312 of the main machine 3 by a gas guide pipe 24. A suction diaphragm is arranged between the other end of the nipple accommodating portion 12 and the negative pressure chamber. The negative pressure assembly transmits negative pressure to the suction diaphragm through the negative pressure space in the negative pressure chamber, so that the suction diaphragm is deformed under the action of its own elasticity, thereby exerting negative pressure on the nipple accommodating portion 12, and finally transmitting the negative pressure to the breast through the flexible flange 11, helping the user to discharge breast milk and improving the efficiency of breast milk collection. The outer surface of the breast milk collection bowl 2 includes a 1 / 4 spherical placement site 23, which is matched with the shape of the main machine 3. After the main machine 3 is installed, the outer surface of the main machine 3 and the breast milk collection bowl 2 form a roughly continuous semispherical curved surface, which is convenient for the user to hold and grasp, and the appearance is beautiful.

[0066] The existing breast pump product has a breast pump shield made of soft and hard rubber. The nipple accommodating portion is made of hard rubber, and the flange is made of soft rubber. The flange and the nipple accommodating portion are connected. When the breast pump shield is taken out of the breast milk collection bowl after each use, the junction of the soft rubber part and the hard rubber part is frequently pulled and is prone to delamination.

[0067] As shown in FIG. 6, in the embodiment of the present application, the breast pump shield 1 includes a nipple accommodating portion 12 and a flange 11. The nipple accommodating portion 12 has a breast milk passage with two open ends. One side of the flange 11 is used to fit the breast, and the other side is integrally formed with one opening of the nipple accommodating portion 12. The junction of the nipple accommodating portion 12 and the flange 11 includes a hard rubber part 41 and a soft rubber part 112 coated outside the hard rubber part 41.

[0068] In the embodiment, the breast pump shield 1 includes a flange 11 and a nipple accommodating portion 12. The nipple accommodating portion 12 has a breast milk passage with two open ends, which is used to place the nipple and connect the breast and the breast milk collection bowl 2, so that the breast milk can flow out of the nipple and flow into the breast milk collection bowl 2. The junction of the nipple accommodating portion 12 and the flange 11 includes a hard rubber part 41 in the middle layer. The hard rubber part 41 can be made of hard rubber or hard silicone, which is resistant to pulling and bending and has higher strength. The junction also includes a soft rubber part 112 coated outside the hard rubber part 41. The soft rubber part 112 can be made of soft rubber or soft silicone, which can protect the hard rubber part 41 from excessive bending at the bending part and cause breakage. In an example, the hard rubber part 41 includes a cylindrical first part and a horn-shaped second part. When the breast pump shield 1 is subjected to tension, most of the tension is borne by the first part and the second part, which are resistant to pulling and bending.

[0069] The breast shield 1 provided by the technical scheme of the present application comprises a nipple accommodating portion 12 and a flange 11, the nipple accommodating portion 12 is provided with a breast pumping channel at both ends, one end of the breast pumping channel is integrally formed with one side of the flange 11, the other side of the flange 11 is used for being attached to a breast, milk flows out of the breast, flows into a milk storage container through the other end of the breast pumping channel, and the connection between the nipple accommodating portion 12 and the flange 11 comprises a hard rubber portion 41 of an intermediate layer and a soft rubber portion 112 wrapped outside the hard rubber layer, so that the connection between the nipple accommodating portion 12 and the flange 11 is resistant to pulling, and is not easy to be delaminated when the breast shield 1 is repeatedly taken out, thereby prolonging the service life of the breast shield 1.

[0070] In an embodiment of the present application, the hard rubber portion 41 and the soft rubber portion 112 are integrally formed by encapsulation.

[0071] In the embodiment, the hard rubber portion 41 is prepared first, and then the soft rubber portion 112 is wrapped on the outer surface of the hard rubber portion 41 by encapsulation process to form the connection between the nipple accommodating portion 12 and the flange 11.

[0072] In an embodiment of the present application, the part of the flange 11 away from the nipple accommodating portion 12 is made of soft rubber material.

[0073] In the embodiment, the part of the flange 11 away from the nipple accommodating portion 12 is made of soft rubber material, such as soft rubber or soft silica gel, and when negative pressure is applied to the flange 11, the flange 11 can be deformed to transmit the negative pressure to the breast of the user, thereby further improving the milk pumping efficiency.

[0074] In an embodiment of the present application, the hard rubber portion 41 extends in a direction away from the flange 11 to form a connecting portion 113, the connecting portion 113 is made of hard rubber material, and the part of the connecting portion 113 away from the hard rubber portion 41 is used for connecting an air bag 44, and the air bag 44 is used for applying negative pressure to the breast shield 1.

[0075] In the embodiment, the hard rubber portion 41 of the nipple accommodating portion 12 extends in a direction away from the flange 11 to form a connecting portion 113, the connecting portion 113 is made of hard rubber material, such as hard rubber or hard silica gel, and is used for supporting the air bag 44, the air bag 44 is deformed to reciprocate to apply negative pressure to the nipple accommodating portion 12, and finally applies negative pressure to the flange 11, so that the milk can be pumped out of the breast and temporarily stored in the milk collecting bowl 2.

[0076] In an embodiment of the present application, the hard rubber portion 41 is provided with a milk outlet 114, and the nipple accommodating portion 12 further comprises a one-way valve 115, one end of the one-way valve 115 is connected with the milk outlet 114, and the other end is located in the milk storage cavity.

[0077] In the embodiment, the hard rubber part 41 is provided with a milk outlet 114 in communication with the milk collecting bowl 2. The milk is sucked out of the breast, flows into the milk collecting bowl 2 through the milk outlet 114 on the hard rubber part 41 of the nipple accommodating part 12, and is collected and temporarily stored. The milk outlet 114 is provided with a one-way valve 115 to prevent the milk flowing into the milk collecting bowl 2 from flowing back, causing contamination or waste of the milk. The one-way valve 115 can be a duckbill valve or other valve structure that can one-way guide the milk outlet 114, which is not limited here.

[0078] In an embodiment of the present application, the soft rubber part 112 extends away from the flange 11, and part of the soft rubber part 112 extends into the connecting part 113.

[0079] In the embodiment, the soft rubber part 112 extends away from the flange 11, and part of the soft rubber part 112 extends into the connecting part 113, which can improve the connection strength between the soft rubber part 112 and the connecting part 113, the connection is resistant to pulling and is not easy to peel off, further improving the service life of the breast shield 1.

[0080] With reference to FIG. 6, the present application also provides a milk collecting assembly 10, which comprises the breast shield 1 and the milk collecting bowl 2 as described above. The outer edge of the flange 11 is provided with a folding part 111, and the bowl opening edge of the milk collecting bowl 2 is connected with the folding part 111 in a snap-fit manner. The folding part 111 is made of soft rubber material, which is used to connect with the bowl opening edge of the milk collecting bowl 2 and enclose a milk storage cavity, which is in communication with the nipple accommodating part 12.

[0081] In the embodiment, the material of the milk collecting bowl 2 should be safe, non-toxic, light and easy to use, such as plastic and the like. The general shape of the milk collecting bowl 2 is bowl-shaped, and the bowl opening edge of the milk collecting bowl 2 is connected with the folding part 111 in a snap-fit manner to form a sealed milk collecting space to prevent milk from overflowing or dust from entering to cause pollution. The outer edge of the flange 11 is provided with the folding part 111 made of soft rubber material, which can hold the milk collecting bowl 2 to form a sealed milk collecting space to prevent milk from overflowing or dust from entering to cause pollution.

[0082] In an embodiment of the present application, opposite sides of the outer periphery of the nipple accommodating part 12 are provided with guide wings 116, and the milk collecting bowl 2 is formed with a guide surface 42. The guide wings 116 abut against the guide surface 42 to position the relative positions of the nipple accommodating part 12 and the milk collecting bowl 2.

[0083] In the embodiment, the opposite sides of the outer peripheral wall of the nipple accommodating portion 12 are provided with guide side wings 116, and correspondingly, the breast milk collecting bowl 2 is formed with a guide surface 42. When the breast milk collecting bowl 2 and the breast milk collecting bowl 2 are installed, the guide side wings 116 abut against the guide surface 42 and can slide into the breast milk collecting bowl 2 along the guide surface 42, thereby positioning the relative positions of the nipple accommodating portion 12 and the breast milk collecting bowl 2, and realizing quick assembly of the breast milk collecting bowl 2 and the breast milk collecting shield 1.

[0084] In an embodiment of the present application, the inner wall of the breast milk collecting bowl 2 is provided with a negative pressure chamber 43 for connecting a negative pressure source. The negative pressure chamber 43 is connected to the other opening of the nipple accommodating portion 12 to form a negative pressure space. The negative pressure chamber 43 and the nipple accommodating portion 12 are provided with an air bag 44.

[0085] In the embodiment, the inner wall of the breast milk collecting bowl 2 is further provided with a negative pressure chamber 43. The negative pressure chamber 43 is connected to the other opening of the nipple accommodating portion 12 to form a closed negative pressure space. The negative pressure source of the breast pump 100 can directly or indirectly apply negative pressure to the breast milk collecting shield 1 through the negative pressure space, finally squeezing the user's breast, and achieving the effect of helping the user to express milk. The air bag 44 is clamped between the negative pressure chamber 43 and the connecting portion 113 of the nipple accommodating portion 12. The negative pressure source can indirectly apply negative pressure to the nipple accommodating portion 12 through the air bag 44, finally squeezing the user's breast, and achieving the effect of helping the user to express milk. The air bag 44 can prevent milk from being sucked into the negative pressure chamber 43 or the negative pressure assembly, causing milk pollution or circuit failure. The central axis of the nipple accommodating portion 12, the central axis of the negative pressure chamber 43, and the central axis of the air bag 44 coincide, that is, the centers of the cross section of the nipple accommodating portion 12, the negative pressure chamber 43, and the air bag 44 are located on the same horizontal line. The negative pressure applied by the negative pressure assembly to the negative pressure chamber 43 can uniformly act on the air bag 44, and then uniformly act on the cross section of the nipple accommodating portion 12, and finally uniformly act on the user's breast, realizing all-round uniform pressing of the user's breast, and improving the efficiency of milk expression. The air bag 44 is disc-shaped, and the bottom is arranged towards the negative pressure chamber 43. The negative pressure assembly applies negative pressure in the negative pressure chamber 43. The disc-shaped air bag 44 bottom will deform towards the negative pressure chamber 43, and finally apply negative pressure to the user's breast, achieving the effect of helping to express milk.

[0086] The above only describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A breast pump, characterized in that: include: A breast shield comprising a flange and a nipple receiving portion, wherein one side of the flange is adapted to fit the breast and the other side of the flange is connected to the nipple receiving portion; A milk collecting bowl, wherein the mouth of the milk collecting bowl and the flange can enclose a milk storage cavity, the edge of the bowl mouth is formed with a milk pouring groove, the milk pouring groove extends in the radial direction of the milk collecting bowl and communicates with the milk storage cavity, the milk pouring groove protrudes outward from the milk collecting bowl, and a placement position is formed on the side of the milk collecting bowl away from the breast shield; and The host comprises a shell and a negative pressure component, wherein the shell is detachably arranged at the placement position, the negative pressure component is arranged in the shell, and the negative pressure component is used to provide negative pressure to the nipple receiving portion.

2. The breast pump according to claim 1, wherein: The edge of one end of the milk pouring trough away from the center is provided with a lip protruding outward, and the main unit is detachably clamped between the milk collecting bowl and the lip.

3. The breast pump according to claim 2, wherein: The shell is formed with a groove, and when the main unit is installed on the milk collecting bowl, the groove is matched with the outer wall of the milk pouring trough.

4. The breast pump according to claim 2, wherein: An air guide tube is protruding from the milk collecting bowl, and a negative pressure air hole is opened on the surface of the shell. The air guide tube is used to pass through the negative pressure air hole and communicate with the negative pressure component to transfer negative pressure to the nipple accommodating part.

5. The breast pump according to claim 4, wherein: The stopping direction of the lip is the same as the extending direction of the air guide tube.

6. The breast pump according to claim 1, wherein: A fixing portion is convexly provided on the front side of the shell, and a fixing groove is provided in the milk collecting bowl. When the main unit is installed on the milk collecting bowl, the fixing portion is clamped in the fixing groove.

7. The breast pump according to claim 6, wherein: An inserting portion is protruded from the fixing portion, and an inserting slot is provided in the fixing slot. When the main unit is installed on the milk collecting bowl, the inserting portion is inserted into the inserting slot.

8. The breast pump according to claim 7, wherein: Hand grips are protrudingly provided on opposite sides of the shell.

9. The breast pump according to any one of claims 1 to 8, characterized in that The breast pump further comprises a duckbill valve, one end of which is communicated with the nipple receiving portion, and the other end of which is a duckbill end, which is communicated with the milk collecting bowl.

10. The breast pump according to any one of claims 1 to 8, characterized in that The outer periphery of the flange is formed with a folded portion to cover and limit the opening edge of the milk collecting bowl, and the folded portion is formed with a notch to avoid the notch of the milk pouring trough.

11. The breast pump according to claim 1, wherein: The nipple accommodating portion has a milk suction channel with openings at both ends, the other side of the flange is integrally formed with an opening of the nipple accommodating portion, and the connection between the nipple accommodating portion and the flange includes a hard rubber part and a soft rubber part covering the hard rubber part.

12. The breast pump according to claim 11, wherein The hard rubber part and the soft rubber part are formed by encapsulation.

13. The breast pump according to claim 11, wherein: The portion of the flange away from the nipple accommodating portion is made of soft rubber material.

14. The breast pump according to claim 13, wherein: The hard rubber part extends in a direction away from the flange to form a connecting portion, the connecting portion is made of hard rubber material, and the portion of the connecting portion away from the hard rubber part is used to connect to an air bag, and negative pressure is applied to the breast shield through the air bag.

15. The breast pump according to claim 14, wherein: The hard rubber part is provided with a milk outlet, and the nipple accommodating portion further comprises a one-way valve, one end of the one-way valve is connected to the milk outlet, and the other end is located in the milk storage cavity.

16. The breast pump according to claim 15, wherein: The soft rubber portion extends in a direction away from the flange, and a portion of the soft rubber portion extends into the connecting portion.

17. The breast pump according to claim 11, wherein: The outer edge of the flange is provided with a folding portion, and the rim of the bowl of the milk collecting bowl is buckled and connected to the folding portion. The folding portion is made of soft rubber material and is used to connect with the rim of the bowl of the milk collecting bowl and enclose to form a milk storage cavity, and the milk storage cavity is connected to the nipple accommodating portion.

18. The breast pump according to claim 11, wherein: Guide wings are provided on opposite sides of the outer periphery of the nipple accommodating portion, a guide surface is formed in the milk collecting bowl, and the guide wings abut against the guide surface to locate the relative positions of the nipple accommodating portion and the milk collecting bowl.

19. The breast pump according to claim 11, wherein: The inner wall of the milk collecting bowl is provided with a negative pressure chamber for connecting to a negative pressure source. The negative pressure chamber is connected to another opening of the nipple accommodating portion to enclose a negative pressure space. An air bag is provided between the negative pressure chamber and the nipple accommodating portion.

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