Flexible breast suction cover and breast pump

Abstract

The invention relates to the field of breast pumps, in particular to a flexible breast suction cover and a breast pump, the flexible breast suction cover comprises a breast cover and a breast suction channel integrally connected with the breast cover, the breast suction channel comprises a negative pressure pipe which is connected with the breast cover and used for allowing milk to flow out and generating negative pressure, and the negative pressure pipe is provided with an integrally-formed deformation part; the negative pressure tube is provided with a deformation part, the deformation part is arranged in the direction from the opening of the breast cover to the end part of the negative pressure tube, the deformation part deforms under the action of a negative pressure source, so that negative pressure is formed in the negative pressure tube, and the breast cover and the negative pressure tube are made of elastic materials. The negative pressure tube has the functions of a horn tube and a diaphragm of an existing breast pump at the same time, negative pressure is generated, meanwhile, the negative pressure tube can serve as a milk outflow channel, the size of the breast pump is reduced, the portability of the breast pump is effectively improved, meanwhile, the number of parts of the breast pump is reduced, the production efficiency is effectively improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of breast pumps, in particular to a flexible breast shield and a breast pump. Background Art

[0002] With the progress of science and the development of society, people's attention to health and nutrition has gradually increased. The benefits of breastfeeding to infant health have been widely publicized, and more and more mothers choose to breastfeed. Breast pumps, as one of the important tools to support breastfeeding, continue to develop driven by multiple factors such as market demand, technological innovation and consumer demand.

[0003] A breast pump generally consists of a speaker assembly and a milk suction channel, wherein the milk suction channel is independently arranged and connected to the speaker assembly, the speaker assembly includes a speaker cover and a speaker tube connected to the speaker cover, and the milk suction channel includes a negative pressure generating part connected to the speaker tube, and a diaphragm arranged in the negative pressure generating part for generating negative pressure. Such a design will make the breast pump larger in size, inconvenient to carry out, and reduce the portability of the breast pump. At the same time, it will make the breast pump have a large number of parts, reduce production efficiency, and thus increase production cost. Therefore, it is necessary to develop a flexible breast shield and a breast pump to solve the problems of existing breast pumps that are large in size and have many parts, resulting in low portability, low production efficiency and high production cost. Summary of the invention

[0004] In view of the above-mentioned existing breast pumps having independent milking channels, which makes the breast pumps larger in size and more parts, resulting in low portability, low production efficiency and high production costs, the present invention solves the technical problems by adopting the following technical solutions: A flexible breast shield, comprising a breast shield and a milk suction channel integrally connected to the breast shield, the milk suction channel comprising a negative pressure tube connected to the breast shield for allowing milk to flow out and generating negative pressure, the negative pressure tube being provided with an integrally formed deformation portion, the deformation portion being arranged along the breast shield opening toward the end of the negative pressure tube, the deformation portion being deformed under the action of a negative pressure source so as to form negative pressure in the negative pressure tube, the breast shield and the negative pressure tube being made of elastic material.

[0005] Furthermore, the deformation portion is arranged along the axial direction or circumferential direction of the negative pressure tube, or distributed on the left and right sides of the negative pressure tube.

[0006] Furthermore, the negative pressure tube gradually narrows from the breast shield toward the end of the negative pressure tube, and the cross-sectional diameter of the deformation portion decreases as the negative pressure tube gradually narrows.

[0007] Furthermore, the deformation parts are provided in plurality and are arranged at intervals, and the cross-section of the deformation parts is wavy or sawtooth-shaped.

[0008] Furthermore, the milk suction channel also includes a one-way valve connected to the negative pressure tube, and the one-way valve and the negative pressure tube are integrally formed or detachably connected.

[0009] Furthermore, the deformation portion includes a plurality of protrusions, and each of the protrusions has a smooth transition.

[0010] A breast pump, a flexible breast shield, a shell connected to the flexible breast shield, an electric pump, and a power supply electrically connected to the electric pump, wherein the shell is provided with a negative pressure shield connected to the negative pressure tube.

[0011] Furthermore, the negative pressure cover is integrally formed and connected to the outer shell, and one side of the negative pressure tube is provided with a first connecting portion connected to the breast cover and a milk outlet communicated with the inner cavity of the negative pressure tube, and the first connecting portion is cooperatively connected to the negative pressure cover to form a negative pressure cavity between the negative pressure tube and the negative pressure cover.

[0012] Further, the first connecting part is provided with a first connecting groove which is cooperated with the negative pressure cover, the cross-sectional shape of the first connecting part is L-shaped, the negative pressure cover is clamped in the first connecting groove to form the negative pressure chamber, the first connecting part is provided with a first connecting port which is connected with the milk outlet, the first connecting groove is annular and surrounds the outside of the negative pressure tube, and the hardness of the negative pressure cover is greater than that of the negative pressure tube and the breast cover.

[0013] Further, the negative pressure tube is in contact with the inner wall of the negative pressure cover, the negative pressure cover is provided with a second connecting port cooperated with the first connecting part, the first connecting part is provided with a second connecting groove cooperated with the second connecting port, the second connecting groove is horizontally arranged along the extension direction of the negative pressure tube, the first connecting part is provided with a first extending part cooperated with the milk suction channel, one side of the negative pressure cover is provided with a second connecting part connected to an external electric pump, and a third connecting hole communicated with the negative pressure chamber, and the third connecting hole is arranged on the second connecting part.

[0014] The beneficial effects of the present invention are as follows: The present invention forms a bra and a negative pressure tube in one piece and provides a deformation portion on the negative pressure tube, so that the negative pressure tube has the functions of the trumpet tube and the diaphragm of the existing breast pump. While generating negative pressure, the negative pressure tube can serve as an outflow channel for milk, thereby reducing the size of the breast pump, effectively improving the portability of the breast pump, and reducing the number of parts of the breast pump, effectively improving production efficiency and reducing production costs. The present invention solves the problems of the existing breast pump having a milk suction channel independently provided and connected to the trumpet assembly, which makes the breast pump larger in size and inconvenient to carry out, reducing the portability of the breast pump, and having a large number of parts, reducing production efficiency and increasing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic structural diagram of a flexible breast shield of the present invention.

[0016] Figure 2 The figure is a schematic structural diagram of a flexible breast shield of the present invention.

[0017] Figure 3 It is a cross-sectional view of a flexible breast shield of the present invention.

[0018] Figure 4 The figure is a schematic structural diagram of a flexible breast shield of the present invention.

[0019] Figure 5 The figure is a schematic structural diagram of a flexible breast shield of the present invention.

[0020] Figure 6 It is a cross-sectional view of a flexible breast shield of the present invention.

[0021] Figure 7 The figure is a schematic structural diagram of a flexible breast shield of the present invention.

[0022] Figure 8 The figure is a schematic structural diagram of a flexible breast shield of the present invention.

[0023] Fig. 9 The figure is a schematic structural diagram of a flexible breast shield of the present invention.

[0024] Fig.10 The figure is a schematic structural diagram of a flexible breast shield of the present invention.

[0025] Fig.11 The figure is a schematic structural diagram of a flexible breast shield of the present invention.

[0026] Fig.12 The figure is a schematic diagram of the connection between the outer shell and the negative pressure cover of the breast pump of the present invention.

[0027] Fig.13 It is a schematic structural diagram of a breast pump of the present invention.

[0028] Fig.14 It is a cross-sectional view of a breast pump of the present invention.

[0029] Fig.15 It is a partial connection cross-sectional view of the breast pump of the present invention. DETAILED DESCRIPTION

[0030] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Example 1 See also Figures 1 to 11A flexible breast shield comprises a breast shield 2 and a milk suction channel 3 integrally connected to the breast shield 2, wherein the milk suction channel 3 comprises a negative pressure tube 31 connected to the breast shield 2 for allowing milk to flow out and generating negative pressure, wherein the negative pressure tube 31 is provided with an integrally formed deformation portion 312, wherein the deformation portion 312 is arranged along the opening of the breast shield 2 toward the end of the negative pressure tube 31, wherein the deformation portion 312 is deformed under the action of a negative pressure source so as to form negative pressure in the negative pressure tube 31, and wherein the breast shield 2 and the negative pressure tube 31 are made of elastic material.

[0032] The breast shield 2 is a component that is in direct contact with the breast. When sucking milk, the breast shield 2 can fit the breast completely, ensuring that the negative pressure generated by the breast pump can smoothly suck out the breast milk. The milk suction channel 3 is a component in the flexible breast shield for generating negative pressure. The existing breast pump is generally provided with a trumpet tube for milk to flow out, and a negative pressure bowl connected to the trumpet tube for generating negative pressure. The negative pressure bowl is provided with a diaphragm that generates negative pressure through reciprocating motion. The milk suction channel 3 includes a negative pressure tube 31 connected to the breast shield 2. The negative pressure tube 31 serves as a channel for milk to flow out in the flexible breast shield and also plays a role in generating negative pressure. Compared with the existing breast pump structure, the number of parts is reduced, the assembly process of the flexible breast shield is simplified, the production efficiency is effectively improved and the production cost is reduced, the overall volume of the flexible breast shield is greatly reduced, and the portability of the flexible breast shield is effectively improved.

[0033] Specifically, the negative pressure tube 31 is provided with a deformation portion 312, which is the part where the negative pressure tube 31 generates negative pressure. The deformation portion 312 can enable the negative pressure tube 31 to generate necessary negative pressure through its own deformation during operation, thereby achieving the purpose of milk suction.

[0034] Furthermore, the deformation portion 312 is arranged from the opening of the breast shield 2 toward the negative pressure tube end 31. Such a design can improve the deformation ability of the deformation portion 312 as much as possible, thereby improving the negative pressure effect and milk suction efficiency of the flexible breast shield. Furthermore, the breast shield 2 and the negative pressure tube 31 are designed as an integrated unit, which can further reduce the number of parts and simplify the assembly process of the breast pump. In addition to improving production efficiency and reducing production costs, it also enhances the stability and sealing of the structure, reduces the connection gaps between components, makes the flexible breast shield easy to clean, and effectively reduces the risks of bacterial growth and cross infection.

[0035] Furthermore, due to the functional requirements of the breast shield 2 and the negative pressure tube 31, silicone or rubber is used as the manufacturing material of the breast shield 2 and the negative pressure tube 31, but it is not limited to the above two materials. Since silicone and rubber have excellent softness and elasticity, the breast shield 2 can fit the shape of the breast well and provide a comfortable milk-sucking experience. At the same time, they have excellent elasticity, durability and aging resistance, which can ensure that the negative pressure tube 31 can maintain a stable shape and performance when generating negative pressure, resist the wear of frequent deformation of the negative pressure tube 31, and effectively improve the service life and reliability of the flexible breast shield. In summary, by combining the breast shield 2 with the negative pressure tube 31, the breast shield 2 and the negative pressure tube 31 are made of silicone or rubber. The negative pressure tube 31 is integrally formed, and a deformation portion 312 is provided on the negative pressure tube 31, so that the negative pressure tube 31 simultaneously has the functions of the trumpet tube and the diaphragm of the existing breast pump, and can serve as an outflow channel for milk while generating negative pressure, thereby reducing the volume of the breast pump, effectively improving the portability of the breast pump, and reducing the number of parts of the breast pump, effectively improving production efficiency and reducing production costs, and solving the problem that the milk suction channel of the existing breast pump is independently set and connected to the trumpet assembly, which makes the breast pump larger in size and inconvenient to carry out, reducing the portability of the breast pump, and the number of parts is large, reducing production efficiency and increasing production costs.

[0036] Furthermore, the deformation portion 312 is arranged along the axial direction of the negative pressure tube 31 .

[0037] Such a design means that the deformation part 312 is distributed on two opposite sides of the negative pressure tube 31 parallel to the horizontal direction. Such a design can ensure that the deformation part 312 can be deformed regularly and controllably during operation, thereby generating a stable negative pressure, and effectively improving the stability of the suction force of the flexible breast shield. When the deformation part 312 extends along the axial direction of the negative pressure tube 31, it allows the deformation part 312 to deform toward the side direction of the negative pressure tube 31, thereby realizing the process of generating negative pressure. Such a design can effectively control the deformation of the deformation part 312, ensuring the The negative pressure generated by the deformation part 312 remains stable, thereby improving the stability of the suction force of the flexible breast shield. At the same time, it is convenient for the user to clean the negative pressure tube 31 after use, thereby effectively improving the hygiene of the flexible breast shield. When the deformation part 312 extends along the circumferential direction of the negative pressure tube 31, it allows the deformation part 312 to deform toward the side direction and the end direction of the negative pressure tube 31, thereby realizing the process of generating negative pressure. Such a design can also increase the space for the deformation part 312 to undergo effective deformation, thereby enhancing the negative pressure effect and effectively improving the milk suction efficiency of the flexible breast shield.

[0038] Specifically, on the basis that the deformation part 312 extends along the axial direction or circumferential direction of the negative pressure tube 31, the deformation part 312 can be spirally arranged on the negative pressure tube 31, or can be linearly distributed on the negative pressure tube 31. The deformation part 312 of these two shapes can further enhance the negative pressure effect of the deformation part 312, thereby improving the milk suction performance and milk suction efficiency of the flexible breast shield. Furthermore, the deformation part 312 is distributed on both sides of the negative pressure tube 31. With such a design, it can be ensured that the deformation of the deformation part 312 is more balanced, and the resulting The negative pressure is evenly distributed on the negative pressure tube 31, avoiding excessive or insufficient local pressure in the negative pressure tube 31, thereby improving the milk suction efficiency of the flexible breast shield. Specifically, the deformation part 312 can be mirror-distributed on the left and right sides of the negative pressure tube 31. Such a design can further ensure that when the negative pressure tube 31 is subjected to external force, the deformation of the deformation parts 312 on the left and right sides of the negative pressure tube 31 is more balanced, thereby making the negative pressure generated by the negative pressure tube 31 more uniform, and effectively improving the stability and effectiveness of the negative pressure generated by the flexible breast shield.

[0039] Furthermore, the negative pressure tube 31 gradually narrows from the breast shield 2 toward the end of the negative pressure tube 31 , and the cross-sectional diameter of the deformation portion 312 decreases as the negative pressure tube 31 gradually narrows.

[0040] The negative pressure tube 31 gradually narrows from the breast shield 2 toward the end of the negative pressure tube 31. Such a design can optimize the airflow path in the negative pressure tube 32, improve the efficiency of negative pressure generation, and also optimize the channel for milk outflow, improve the efficiency of milk outflow from the inner cavity of the negative pressure tube 31, avoid the situation where milk is retained in the inner cavity of the negative pressure tube 31, and effectively improve the structural rationality of the flexible breast shield.

[0041] Furthermore, the cross-sectional diameter of the deformation portion 312 decreases as the negative pressure tube 31 gradually narrows, which means that the cross-sectional diameter of the deformation portion 312 near one end of the breast shield 2 is larger, while the cross-sectional diameter of the deformation portion 3121 near one end of the bottom of the negative pressure shield 2 is smaller. This design makes the deformation ability of the deformation portion 3121 near one end of the breast shield 2 stronger, while the deformation ability of the deformation portion 312 near the end of the negative pressure tube 31 is weaker. Since the distance between the deformation portion 312 near one end of the breast shield 2 and the breast is smaller, the deformation ability of the deformation portion 3121 near one end of the breast shield 2 is smaller. The deformable portion 312 near one end of the breast shield 2 is designed to have a strong deformability, which can increase the suction force of the negative pressure generated by the deformable portion 312 on the breast as much as possible, thereby achieving the effect of improving milk suction efficiency. The deformable portion 312 near the end of the negative pressure tube 31 is designed to have a weaker deformability, which can increase the structural stability of the negative pressure tube 31 as much as possible without affecting the milk suction efficiency, and avoid the deformable portion 312 from being excessively deformed due to excessive external suction and being unable to generate negative pressure normally. Therefore, this design can effectively improve the negative pressure stability of the flexible breast shield.

[0042] Furthermore, the deformation parts 312 are provided in plurality and are arranged at intervals, and the cross section of the deformation parts 312 is wavy.

[0043] By providing the deformation part 3121 as a plurality of deformation parts, the deformation ability of the negative pressure tube 31 can be effectively improved, and the negative pressure effect generated by the negative pressure tube 31 can be improved. Furthermore, by arranging the plurality of deformation parts 312 at intervals, it can be ensured that the pressure distribution of the negative pressure tube 31 is more uniform, and the situation where the local pressure is too large or too small can be reduced, thereby effectively improving the efficiency and stability of negative pressure generation. Furthermore, by designing the cross section of the deformation part 312 as a wave shape, it can better fit the natural shape of the breast, reduce the sense of oppression and discomfort, and improve the user experience. By designing the cross section of the deformation part 312 as a serrated shape, it can provide more contact points between the breast shield 2 and the breast, increase the friction between the two, reduce sliding, and effectively improve the sealing and stability of the connection between the flexible suction breast shield and the breast.

[0044] Furthermore, the milk suction channel 3 also includes a one-way valve 33 connected to the negative pressure tube 31 , and the one-way valve 33 and the negative pressure tube 31 are integrally formed.

[0045] Furthermore, the deformation portion 312 includes a plurality of protrusions 3121 , and each of the protrusions 3121 has a smooth transition.

[0046] The design of the protrusion 3121 allows the negative pressure tube 31 to have a certain elastic deformation ability in a specific area, and can provide additional deformation space for the deformation part 312, thereby enhancing the negative pressure effect of the deformation part 312 and improving the milk suction efficiency of the flexible breast shield. Specifically, the cross-section of the protrusion 3121 can be an arc shape. Such a design can make the protrusion 3121 more easily deformed when under pressure, thereby generating the required negative pressure. At the same time, the arc-shaped cross-section of the protrusion 3121 can provide a more efficient negative pressure generation effect, effectively improving the negative pressure generation efficiency of the deformation part 312, thereby improving the milk suction performance of the flexible breast shield. Furthermore, the smooth transition between each of the protrusions 3121 can make the protrusion 3121 more easily deformed when under pressure, reducing the negative pressure required for the protrusion 3121 to deform, so that the deformation part 312 can generate negative pressure more efficiently, effectively improving the milk suction efficiency of the flexible breast shield.

[0047] Example 2 See also Figures 12 to 15 , a breast pump, a flexible breast shield, a shell 4 connected to the flexible breast shield, an electric pump 5, and a power supply 6 electrically connected to the electric pump 5, wherein the shell 4 is provided with a negative pressure shield 32 connected to the negative pressure tube 31.

[0048] The design of the breast pump achieves efficient and stable negative pressure generation effect by integrating and optimizing the flexible breast shield, shell 4, electric pump and power supply 6, while improving the user's comfort and milk suction effect, wherein the flexible breast shield integrates the breast shield 2 and the negative pressure tube 31, and provides a deformation portion 312 on the negative pressure tube 31, so that the negative pressure tube 31 has the functions of the trumpet tube and diaphragm of the existing breast pump at the same time, and can serve as an outflow channel for milk while generating negative pressure, thereby reducing the volume of the breast pump, effectively improving the portability of the breast pump, and reducing the number of parts of the breast pump, effectively improving the production efficiency and reducing the production cost, and solving the problem that the milk suction channel of the existing breast pump is independently set and connected to the trumpet assembly, which makes the breast pump larger in size and inconvenient to carry out, reduces the portability of the breast pump, and the number of parts is large, reduces the production efficiency and increases the production cost.

[0049] Furthermore, the shell 4 is provided with a negative pressure hood 32 connected to the negative pressure tube 31, and the negative pressure hood 32 can ensure that the negative pressure tube 31 is deformed within a controllable range, providing a more stable suction environment for the flexible breast shield, thereby effectively improving the stability and reliability of the flexible breast shield, and at the same time preventing external objects from damaging the negative pressure tube 31, thereby effectively improving the service life of the flexible breast shield.

[0050] Furthermore, the negative pressure cover 32 is integrally formed and connected to the outer shell 4, and one side of the negative pressure tube 31 is provided with a first connecting portion 311 connected to the breast shield 2 and a milk outlet 313 communicated with the inner cavity of the negative pressure tube 31, and the first connecting portion 311 is cooperatively connected with the negative pressure cover 32 to form a negative pressure cavity 34 between the negative pressure tube 31 and the negative pressure cover 32.

[0051] The negative pressure cover 32 is integrally formed and connected to the shell 4, which can reduce additional seals and connectors, simplify the overall structure of the breast pump, reduce production costs, and reduce the connection of components, thereby improving the integrity and structural strength of the breast pump. Furthermore, by providing a first connecting portion 311 connected to the breast shield 2 on one side of the negative pressure tube 31, and making the first connecting portion 311 cooperate with the negative pressure cover 32 to form a stable negative pressure chamber 34, the negative pressure chamber 34 can help the flexible breast shield to stably generate and maintain the pressure required for milk suction. The negative pressure is generated by the suction pipe 31, thereby effectively sucking milk from the breast, effectively improving the continuity, efficiency and comfort of the milk sucking process, and the design of the milk outlet 313 enables the milk to flow out of the negative pressure pipe 31 smoothly, so as to collect and store the milk. At the same time, since the first connecting part 311 is connected to the breast shield 2, when the various components of the breast pump are connected in coordination, the first connecting part 311 can support the breast shield 2 to prevent the breast shield 2 from excessive deformation and failure to suck milk normally, thereby effectively improving the stability and reliability of the flexible breast shield.

[0052] Furthermore, the design of the one-way valve 33 can prevent the milk from flowing back during the milk pumping process, ensure the single direction of the airflow, thereby improving the milk pumping efficiency, while also improving the hygiene of the milk pumping process and reducing the risk of bacteria growth. In addition, the one-way valve 33 can also help control the airflow, ensure the stability and continuity of the negative pressure in the negative pressure tube 31, avoid poor milk pumping effect due to unstable airflow, and effectively improve the structural rationality and functionality of the flexible breast shield. Further, the one-way valve 33 and the negative pressure tube 31 are designed to be integrally formed, which can reduce the number of parts of the breast pump, simplify the assembly process, and effectively improve The production efficiency is improved and the production cost is reduced. At the same time, the connection between components is reduced to reduce the risk of air leakage, the sealing of the inner cavity of the negative pressure tube 31 is ensured, and the stability and reliability of the breast pump are effectively improved. If the one-way valve 33 and the negative pressure tube 31 are designed to be detachably connected, the user can easily disassemble the one-way valve 33 and clean it, ensuring the hygiene and durability of the one-way valve 33 and the negative pressure tube 31. Therefore, the setting of the one-way valve 33 and the design of the one-way valve 33 and the negative pressure tube 31 being integrally formed or detachably connected not only optimize the performance of the breast pump, but also provide users with a better usage experience.

[0053] Further, the first connection portion 311 is provided with a first connection groove 23 that is connected to the negative pressure cover 32, the cross-sectional shape of the first connection portion 311 is L-shaped, the negative pressure cover 32 is clamped in the first connection groove 23 to form the negative pressure cavity 34, the first connection portion 311 is provided with a first connection port 3111 that is connected to the milk outlet 313, the first connection groove 23 is annularly surrounding the outside of the negative pressure tube 31, and the hardness of the negative pressure cover 32 is greater than that of the negative pressure tube 31 and the breast shield 2. The design of the first connection groove 23 means that the negative pressure cover 32 is clamped in the first connection groove 23 to form the negative pressure cavity 34. Since the negative pressure tube 31 is made of a soft elastic material, such a connection method can effectively prevent the connection between the first connection portion 311 and the negative pressure cover 32 from being loosened, ensure the stability and sealing of the negative pressure cavity 34, effectively improve the structural stability and reliability of the flexible breast shield, and at the same time make the negative pressure cover 32 easily disassembled, convenient for users to clean and maintain, and effectively improve the practicality and safety of the flexible breast shield.

[0054] Furthermore, the cross-sectional shape of the first connecting portion 311 is L-shaped, which means that the first connecting portion 311 can limit the relative deformation of the bra 2 and the negative pressure tube 31 to a certain extent, and prevent the first connecting portion 311 from loosening the connection between the bra 2 and the negative pressure tube 31 due to excessive deformation, thereby effectively improving the structural stability and reliability of the flexible breast shield, and further ensuring the stability and sealing of the negative pressure chamber 34. In addition, the first connecting groove 23 is annularly surrounding the outside of the negative pressure tube 31, which can maximize the connection area between the negative pressure shield 32 and the first connecting groove 23 at the first connecting portion 311, and maximize the connection between the negative pressure shield 32 and the first connecting groove 23. The first connection portion 311 is provided with a first connection port 3111 which is connected to the milk outlet 313. Such a design can ensure that the milk in the negative pressure tube 31 can flow out smoothly, which is convenient for collecting and storing the milk. Furthermore, the negative pressure cover 32 has a harder surface than the negative pressure tube 31 and the bra 2. Since the negative pressure tube 31 and the bra 2 are made of soft elastic materials, such a design enables the negative pressure cover 32 to improve the structural strength of the flexible breast shield, thereby preventing the flexible breast shield from being deformed under the action of external force and causing the connection between the various components to become loose, thereby effectively improving the structural stability and reliability of the flexible breast shield.

[0055] Further, the negative pressure tube 31 abuts against the inner wall of the negative pressure cover 32, the negative pressure cover 32 is provided with a second connecting port 321 cooperated with the first connecting portion 311, the first connecting portion 311 is provided with a second connecting groove 24 cooperated with the second connecting port 321, the second connecting groove 24 is horizontally arranged along the extension direction of the negative pressure tube 31, the first connecting portion 311 is provided with a first extending portion 3112 cooperated with the milk suction channel 3, one side of the negative pressure cover 32 is provided with a second connecting portion 322 connected to an external electric pump, and a third connecting hole 323 communicated with the negative pressure chamber 34, and the third connecting hole 323 is arranged on the second connecting portion 322.

[0056] The negative pressure tube 31 abuts against the inner wall of the negative pressure cover 32, which means that the negative pressure cover 32 can support the negative pressure tube 31. When the negative pressure tube 31 is deformed, the negative pressure cover 32 can limit the deformation direction of the negative pressure tube 31, thereby controlling the deformation of the negative pressure tube 31 and ensuring that the negative pressure tube 31 can be deformed within a controllable range, providing stable suction, and effectively improving the structural stability and reliability of the flexible breast shield. The negative pressure tube 31 abuts against the inner wall of the negative pressure cover 32, and the side wall of the negative pressure tube 31 abuts against the side wall of the negative pressure cover 32 and / or the bottom of the negative pressure tube 31 abuts against the bottom of the negative pressure cover 32.

[0057] Furthermore, the negative pressure cover 32 is provided with a second connection port 321 which is connected to the first connection portion 311, and the first connection portion 311 is provided with a second connection groove 24 which is connected to the second connection port 321. The design of the second connection port 321 and the second connection groove 24 being connected to each other further enhances the connection stability between the negative pressure tube 31 and the negative pressure cover 32, ensures the sealing of the negative pressure chamber 34 and the structural stability of the flexible breast shield. Furthermore, the second connection groove 24 is horizontally arranged along the extension direction of the negative pressure tube 31, which means that the matching connection between the first connection groove 23 and the negative pressure cover 32, and the matching connection between the second connection groove 24 and the second connection port 321 provide fixation and limitation in multiple directions, so that the connection between the negative pressure cover 32 and the negative pressure tube 31 is more stable. In addition, the horizontally arranged second connection groove 24 also plays a guiding role, reduces the difficulty of the alignment connection between the negative pressure cover 32 and the negative pressure tube 31, and also makes the negative pressure cover 32 easily disassembled, convenient for users to clean and maintain it, and effectively improves the practicality and convenience of the breast pump.

[0058] Example 3 Different from the first embodiment, the deformation portion 312 is arranged around the circumference of the negative pressure tube 31 .

[0059] Example 4 Different from the first embodiment, the deformation portion 312 is distributed on the left and right sides of the negative pressure tube 31 .

[0060] Example 5 Different from the first embodiment, the cross section of the deformation portion 312 is sawtooth-shaped.

[0061] Example 6 Different from the first embodiment, the one-way valve 33 is detachably connected to the negative pressure pipe 31 .

[0062] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but they do not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A flexible breast shield, characterized in that: The invention comprises a breast shield (2), and a milk suction channel (3) integrally connected to the breast shield (2); the milk suction channel (3) comprises a negative pressure tube (31) connected to the breast shield (2) for allowing milk to flow out and generating negative pressure; the negative pressure tube (31) is provided with an integrally formed deformation portion (312); the deformation portion (312) is arranged along the opening of the breast shield (2) toward the end of the negative pressure tube (31); the deformation portion (312) is deformed under the action of a negative pressure source so that negative pressure is formed in the negative pressure tube (31); the breast shield (2) and the negative pressure tube (31) are made of elastic material.

2. A flexible breast shield according to claim 1, characterized in that: The deformation portion (312) is arranged along the axial direction of the negative pressure tube (31), or in a circumferential direction, or is distributed on the left and right sides of the negative pressure tube (31).

3. A flexible breast shield according to claim 1, characterized in that: The negative pressure tube (31) gradually narrows from the breast shield (2) toward the end of the negative pressure tube (31), and the cross-sectional diameter of the deformation portion (312) decreases as the negative pressure tube (31) gradually narrows.

4. A flexible breast shield according to claim 1, characterized in that: The deformation portions (312) are provided in plurality and are arranged at intervals, and the cross-section of the deformation portions (312) is wavy or sawtooth-shaped.

5. A flexible breast shield according to claim 1, characterized in that: The milk suction channel (3) further comprises a one-way valve (33) connected to the negative pressure tube (31); the one-way valve (33) and the negative pressure tube (31) are integrally formed or detachably connected.

6. A flexible breast shield according to claim 1, characterized in that: The deformation portion (312) comprises a plurality of protrusions (3121), and each of the protrusions (3121) has a smooth transition between them.

7. A breast pump, characterized in that: The invention comprises a flexible breast shield as claimed in any one of claims 1 to 6, a shell (4) connected to the flexible breast shield, an electric pump (5), and a power source (6) electrically connected to the electric pump (5), wherein the shell (4) is provided with a negative pressure shield (32) connected to the negative pressure tube (31).

8. The breast pump according to claim 7, characterized in that The negative pressure cover (32) is integrally formed and connected to the outer shell (4); one side of the negative pressure tube (31) is provided with a first connection portion (311) connected to the breast shield (2) and a milk outlet (313) communicated with the inner cavity of the negative pressure tube (31); the first connection portion (311) is cooperatively connected to the negative pressure cover (32) so that a negative pressure cavity (34) is formed between the negative pressure tube (31) and the negative pressure cover (32).

9. The breast pump according to claim 8, characterized in that The first connecting portion (311) is provided with a first connecting groove (23) which is connected to the negative pressure cover (32); the cross-sectional shape of the first connecting portion (311) is L-shaped; the negative pressure cover (32) is clamped in the first connecting groove (23) to form the negative pressure chamber (34); the first connecting portion (311) is provided with a first connecting port (3111) which is connected to the milk outlet (313); the first connecting groove (23) is annularly surrounding the outside of the negative pressure tube (31); the hardness of the negative pressure cover (32) is greater than that of the negative pressure tube (31) and the breast cover (2).

10. The breast pump according to claim 8, characterized in that The negative pressure tube (31) is in contact with the inner wall of the negative pressure cover (32); the negative pressure cover (32) is provided with a second connection port (321) matched with the first connection portion (311); the first connection portion (311) is provided with a second connection groove (24) matched with the second connection port (321); the second connection groove (24) is arranged horizontally along the extension direction of the negative pressure tube (31); the first connection portion (311) is provided with a first extension portion (3112) matched with the milk suction channel (3); one side of the negative pressure cover (32) is provided with a second connection portion (322) connected with an external electric pump, and a third connection hole (323) communicating with the negative pressure chamber (34); the third connection hole (323) is arranged on the second connection portion (322).

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