Flexible breast shield and breast pump

Abstract

This invention relates to the field of breast pumps, specifically a flexible breast shield and breast pump, comprising a breast shield and a breast pump channel integrally connected to the breast shield. The breast pump channel includes a negative pressure tube connected to the breast shield for supplying milk outflow and generating negative pressure. The negative pressure tube has an integrally formed deformable part, which is arranged along the opening of the breast shield toward the end of the negative pressure tube. The deformable part deforms under the action of a negative pressure source to create negative pressure inside the negative pressure tube. The breast shield and the negative pressure tube are made of elastic material. By integrally molding the breast shield and the negative pressure tube and providing a deformable part in the negative pressure tube, the negative pressure tube simultaneously possesses the functions of the trumpet tube and diaphragm of existing breast pumps. While generating negative pressure, it can also act as a milk outflow channel, 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.

Description

Technical Field

[0001] This invention relates to the field of breast pumps, specifically a flexible breast shield and a breast pump. Background Technology

[0002] With scientific progress and social development, people are paying more and more attention to health and nutrition. The benefits of breastfeeding for infant health have been widely publicized, and more and more mothers are choosing to breastfeed. As one of the important tools to support breastfeeding, breast pumps are constantly developing under the impetus of market demand, technological innovation and consumer demand.

[0003] Breast pumps typically consist of a horn assembly and a milk suction channel. The milk suction channel is independently connected to the horn assembly. The horn assembly includes a horn cover and a horn tube connected to the horn cover. The milk suction channel includes a negative pressure generating part connected to the horn tube and a diaphragm located in the negative pressure generating part to generate negative pressure. This design makes the breast pump bulky, inconvenient to carry, and reduces its portability. It also increases the number of parts, reducing production efficiency and increasing production costs. Therefore, there is a need to develop a flexible breast shield and breast pump to solve the problems of large size, many parts, low portability, low production efficiency, and high production costs caused by existing breast pumps. Summary of the Invention

[0004] To address the aforementioned problems in existing breast pumps, such as their independently designed milk extraction channels leading to larger size, more parts, lower portability, lower production efficiency, and higher production costs, the technical solution adopted by this invention is as follows:

[0005] A flexible breast shield includes a breast shield and a breast suction channel integrally connected to the breast shield. The breast suction channel includes a negative pressure tube connected to the breast shield for supplying milk outflow and generating negative pressure. The negative pressure tube has an integrally formed deformable part, which is arranged along the opening of the breast shield toward the end of the negative pressure tube. The deformable part deforms under the action of a negative pressure source to create negative pressure inside the negative pressure tube. The breast shield and the negative pressure tube are made of elastic material.

[0006] Furthermore, the deformable portion is arranged axially or circumferentially around the negative pressure pipe, or distributed on the left and right sides of the negative pressure pipe.

[0007] Furthermore, the negative pressure tube gradually narrows from the breast bra toward the end of the negative pressure tube, and the cross-sectional diameter of the deformed part decreases as the negative pressure tube gradually narrows.

[0008] Furthermore, the deformable part is provided in multiple and spaced apart, and the cross-section of the deformable part is wavy or sawtooth-shaped.

[0009] Furthermore, the breast pumping channel also includes a one-way valve connected to the negative pressure tube, the one-way valve being integrally formed with the negative pressure tube or detachably connected.

[0010] Furthermore, the deformable portion includes a plurality of protrusions, with a smooth transition between each of the protrusions.

[0011] A breast pump, comprising a flexible breast shield, a housing connected to the flexible breast shield, an electric pump, and a power source electrically connected to the electric pump, wherein the housing is provided with a negative pressure cover connected to the negative pressure tube.

[0012] Furthermore, the negative pressure cover is integrally formed and connected to the outer shell. The negative pressure tube has a first connecting part that connects to the breast cover and a milk outlet that communicates with the inner cavity of the negative pressure tube on one side. The first connecting part is connected to the negative pressure cover so that a negative pressure cavity is formed between the negative pressure tube and the negative pressure cover.

[0013] Furthermore, the first connecting part is provided with a first connecting groove that cooperates with the negative pressure cover. The cross-sectional shape of the first connecting part is L-shaped. The negative pressure cover is engaged in the first connecting groove to form the negative pressure cavity. The first connecting part is provided with a first connecting port that communicates with the milk outlet. The first connecting groove is annularly surrounding the outside of the negative pressure tube. The hardness of the negative pressure cover is greater than that of the negative pressure tube and the breast cover.

[0014] Furthermore, the negative pressure tube abuts against the inner wall of the negative pressure cover, the negative pressure cover is provided with a second connection port that mates with the first connection part, the first connection part is provided with a second connection groove that mates with the second connection port, the second connection groove is horizontally arranged along the extension direction of the negative pressure tube, the first connection part is provided with a first extension that mates with the breast pumping channel, one side of the negative pressure cover is provided with a second connection part that mates with an external electric pump, and a third connection hole that communicates with the negative pressure chamber, the third connection hole being provided on the second connection part.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention integrates the breast shield and the negative pressure tube into a single unit, and incorporates a deformation section within the negative pressure tube. This allows the negative pressure tube to simultaneously function as both the horn tube and diaphragm of a conventional breast pump. While generating negative pressure, it also acts as a milk outflow channel, reducing the size of the breast pump and effectively improving its portability. Furthermore, it reduces the number of parts, significantly increasing production efficiency and lowering production costs. This invention solves the problems of existing breast pumps where the milk expression channel is independently connected to the horn assembly, resulting in a larger pump size that is inconvenient to carry, reducing portability, and the increased number of parts that reduces production efficiency and increases production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a flexible breast shield according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a flexible breast shield according to the present invention.

[0019] Figure 3 This is a cross-sectional view of a flexible breast shield according to the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of a flexible breast shield according to the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of a flexible breast shield according to the present invention.

[0022] Figure 6 This is a cross-sectional view of a flexible breast shield according to the present invention.

[0023] Figure 7 This is a schematic diagram of the structure of a flexible breast shield according to the present invention.

[0024] Figure 8 This is a schematic diagram of the structure of a flexible breast shield according to the present invention.

[0025] Figure 9 This is a schematic diagram of the structure of a flexible breast shield according to the present invention.

[0026] Figure 10 This is a schematic diagram of the structure of a flexible breast shield according to the present invention.

[0027] Figure 11 This is a schematic diagram of the structure of a flexible breast shield according to the present invention.

[0028] Figure 12 This is a schematic diagram showing the connection between the outer shell and the negative pressure cover of the breast pump of the present invention.

[0029] Figure 13 This is a schematic diagram of the breast pump of the present invention.

[0030] Figure 14 This is a cross-sectional view of the breast pump of the present invention.

[0031] Figure 15 This is a partial cross-sectional view of the breast pump of the present invention. Detailed Implementation

[0032] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] Example 1

[0034] Please see Figures 1 to 11A flexible breast shield includes a breast shield 2 and a breast suction channel 3 integrally connected to the breast shield 2. The breast suction channel 3 includes a negative pressure tube 31 connected to the breast shield 2 for supplying milk flow and generating negative pressure. The negative pressure tube 31 is provided with an integrally formed deformable part 312. The deformable part 312 is arranged along the opening of the breast shield 2 toward the end of the negative pressure tube 31. The deformable part 312 deforms under the action of a negative pressure source to create negative pressure inside the negative pressure tube 31. The breast shield 2 and the negative pressure tube 31 are made of elastic material.

[0035] The breast shield 2 is the component that comes into direct contact with the breast. During breast pumping, the breast shield 2 can completely fit the breast, ensuring that the negative pressure generated by the breast pump can smoothly extract breast milk. The breast pump channel 3 is the component in the flexible breast pump that generates negative pressure. Existing breast pumps generally have a funnel tube for milk flow and a negative pressure bowl connected to the funnel tube for generating negative pressure. The negative pressure bowl contains a diaphragm that generates negative pressure through reciprocating motion. The breast pump channel 3 includes a negative pressure tube 31 connected to the breast shield 2. The negative pressure tube 31 acts as a channel for milk flow in the flexible breast pump and also serves to generate negative pressure. Compared with the existing breast pump structure, this reduces the number of parts, simplifies the assembly process of the flexible breast pump, effectively improves production efficiency and reduces production costs, and also greatly reduces the overall size of the flexible breast pump, effectively improving its portability.

[0036] Specifically, the negative pressure tube 31 is provided with a deformation part 312, which is the part of the negative pressure tube 31 that generates negative pressure. It can enable the negative pressure tube 31 to generate the necessary negative pressure through its own deformation during operation, thereby achieving the purpose of milk suction.

[0037] Furthermore, the deformable part 312 is arranged from the opening of the breast shield 2 toward the end 31 of the negative pressure tube. This design can maximize the deformation capacity of the deformable part 312, thereby improving the negative pressure effect and milk expression efficiency of the flexible breast shield. Furthermore, the breast shield 2 and the negative pressure tube 31 are integrally molded, 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 parts, and makes the flexible breast shield easy to clean, effectively reducing the risk of bacterial growth and cross-infection.

[0038] Furthermore, due to the functional requirements of the breast bra 2 and the negative pressure tube 31, silicone or rubber is used as the material for making the breast bra 2 and the negative pressure tube 31, but it is not limited to these two materials. Because silicone and rubber have excellent softness and elasticity, the breast bra 2 can conform well to the shape of the breast, providing a comfortable breastfeeding experience. At the same time, they have excellent elasticity, durability, and aging resistance, ensuring that the negative pressure tube 31 maintains a stable shape and performance when generating negative pressure, resisting wear from frequent deformation of the negative pressure tube 31, effectively improving the service life and reliability of the flexible breast shield. In summary, by combining the breast bra 2 with… The negative pressure tube 31 is integrally formed, and a deformation part 312 is provided on the negative pressure tube 31, so that the negative pressure tube 31 simultaneously has the functions of the horn tube and diaphragm of the existing breast pump. While generating negative pressure, it can also act as a milk outflow channel, reducing the size of the breast pump and effectively improving its portability. At the same time, it reduces the number of parts of the breast pump, effectively improving production efficiency and reducing production costs. It solves the problems of existing breast pumps where the milk expression channel is set independently and connected to the horn assembly, resulting in a large breast pump size that is not convenient to carry when going out, reducing the portability of the breast pump, and the large number of parts that reduces production efficiency and increases production costs.

[0039] Furthermore, the deformable part 312 is arranged along the axial direction of the negative pressure pipe 31.

[0040] This design means that the deformable parts 312 are distributed on opposite sides of the negative pressure tube 31, parallel to the horizontal direction. This design ensures that the deformable parts 312 can deform regularly and controllably during operation, thereby generating stable negative pressure and effectively improving the suction stability of the flexible breast shield. When the deformable parts 312 extend along the axial direction of the negative pressure tube 31, it allows the deformable parts 312 to deform laterally towards the negative pressure tube 31, thus realizing the process of generating negative pressure. This design can effectively control the deformation of the deformable parts 312, ensuring the... The negative pressure generated by the deformation part 312 remains stable, improving the stability of the suction force of the flexible breast shield. At the same time, it facilitates the cleaning of the negative pressure tube 31 after use, effectively improving the hygiene of the flexible breast shield. When the deformation part 312 extends circumferentially along the negative pressure tube 31, it allows the deformation part 312 to deform in the side and end face directions of the negative pressure tube 31, thereby realizing the process of generating negative pressure. This design also increases the space for the effective deformation of the deformation part 312, thereby enhancing the negative pressure effect and effectively improving the milk expression efficiency of the flexible breast shield.

[0041] Specifically, based on the fact that the deformable portion 312 extends along the axial or circumferential direction of the negative pressure tube 31, the deformable portion 312 can be spirally arranged in the negative pressure tube 31 or linearly distributed in the negative pressure tube 31. Both shapes of the deformable portion 312 can further enhance the negative pressure effect of the deformable portion 312, thereby improving the milk-expressing performance and efficiency of the flexible breast shield. Furthermore, the deformable portion 312 is distributed on both sides of the negative pressure tube 31. This design ensures that the deformation of the deformable portion 312 is more balanced, resulting in... The negative pressure is evenly distributed in the negative pressure tube 31 to avoid excessive or insufficient local pressure, 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. This design can further ensure that when the negative pressure tube 31 is subjected to external force, the deformation of the deformation part 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.

[0042] Furthermore, the negative pressure tube 31 gradually narrows from the breast bra 2 toward the end of the negative pressure tube 31, and the cross-sectional diameter of the deformable part 312 decreases as the negative pressure tube 31 gradually narrows.

[0043] The negative pressure tube 31 gradually narrows from the breast shield 2 toward the end of the negative pressure tube 31. This design optimizes the airflow path within the negative pressure tube 32, improves the efficiency of negative pressure generation, and also optimizes the milk outflow channel, improving the efficiency of milk outflow from the inner cavity of the negative pressure tube 31 and preventing milk from stagnating in the inner cavity of the negative pressure tube 31. This effectively improves the structural rationality of the flexible breast shield.

[0044] Furthermore, the cross-sectional diameter of the deformable part 312 decreases as the negative pressure tube 31 gradually narrows. This means that the cross-sectional diameter of the deformable part 312 near the end of the bra 2 is larger, while the cross-sectional diameter of the deformable part 3121 near the bottom of the negative pressure cover 2 is smaller. This design makes the deformable part 3121 near the end of the bra 2 have a stronger deformation capability, while the deformable part 312 near the end of the negative pressure tube 31 has a weaker deformation capability. Since the distance between the deformable part 312 near the end of the bra 2 and the breast is smaller, it will... The deformable part 312 at one end of the breast shield 2 is designed to have a strong deformability, which can maximize the suction force of the negative pressure generated by the deformable part 312 on the breast, thereby improving the milk pumping efficiency. On the other hand, the deformable part 312 at the end near the negative pressure tube 31 is designed to have a weak deformability, which can maximize the structural stability of the negative pressure tube 31 without affecting the milk pumping efficiency. This prevents the deformable part 312 from being over-deformed due to excessive external suction, thus preventing it from generating negative pressure normally. Therefore, this design can effectively improve the negative pressure stability of the flexible breast shield.

[0045] Furthermore, the deformable portion 312 is provided in multiple and spaced apart, and the cross-section of the deformable portion 312 is wavy.

[0046] By setting multiple deformation portions 3121, the deformation capacity of the negative pressure tube 31 can be effectively improved, thereby enhancing the negative pressure effect generated by the negative pressure tube 31. Furthermore, by arranging multiple deformation portions 312 at intervals, the pressure distribution of the negative pressure tube 31 can be ensured to be more uniform, reducing the situation of excessive or insufficient local pressure, and effectively improving the efficiency and stability of negative pressure generation. Furthermore, by designing the cross-section of the deformation portion 312 as wavy, it can better conform to the natural shape of the breast, reducing pressure and discomfort, and improving the user experience. On the other hand, by designing the cross-section of the deformation portion 312 as serrated, it can provide more contact points between the breast bra 2 and the breast, increasing the friction between the two, reducing slippage, and effectively improving the sealing and stability of the connection between the flexible breast bra and the breast.

[0047] Furthermore, the breast pumping channel 3 also includes a one-way valve 33 connected to the negative pressure tube 31, and the one-way valve 33 is integrally formed with the negative pressure tube 31.

[0048] Furthermore, the deformable portion 312 includes a plurality of protrusions 3121, with a smooth transition between each of the protrusions 3121.

[0049] The design of the protrusion 3121 allows the negative pressure tube 31 to have a certain elastic deformation capability in a specific area, providing additional deformation space for the deformable part 312, thereby enhancing the negative pressure effect of the deformable part 312 and improving the milk suction efficiency of the flexible breast shield. Specifically, the cross-section of the protrusion 3121 can be arc-shaped. This design makes it easier for the protrusion 3121 to deform 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 deformable part 312, thereby improving the milk suction performance of the flexible breast shield. Furthermore, the smooth transition between each protrusion 3121 makes it easier for the protrusion 3121 to deform under pressure, reducing the negative pressure required for the protrusion 3121 to deform, allowing the deformable part 312 to generate negative pressure more efficiently, effectively improving the milk suction efficiency of the flexible breast shield.

[0050] Example 2

[0051] Please see Figures 12 to 15 The breast pump includes a flexible breast shield, a housing 4 connected to the flexible breast shield, an electric pump 5, and a power supply 6 electrically connected to the electric pump 5. The housing 4 is provided with a negative pressure cover 32 connected to the negative pressure tube 31.

[0052] The design of this breast pump integrates and optimizes the flexible breast shield, outer shell 4, electric pump, and power supply 6, achieving efficient and stable negative pressure generation while improving user comfort and milk expression. The flexible breast shield integrates the breast shield 2 with the negative pressure tube 31, and includes a deformation section 312 in the negative pressure tube 31. This allows the negative pressure tube 31 to function as both the horn tube and diaphragm of a conventional breast pump, generating negative pressure while also acting as a milk outflow channel. This reduces the size of the breast pump, significantly improving its portability. Furthermore, it reduces the number of parts, effectively increasing production efficiency and lowering production costs. This design solves the problems of existing breast pumps where the milk expression channel is independently connected to the horn assembly, resulting in a larger pump size that is inconvenient to carry, reducing portability, and the increased number of parts that reduces production efficiency and increases production costs.

[0053] Furthermore, the outer shell 4 is provided with a negative pressure cover 32 connected to the negative pressure tube 31. The negative pressure cover 32 can ensure that the negative pressure tube 31 deforms within a controllable range, providing a more stable suction environment for the flexible breast shield, effectively improving the stability and reliability of the flexible breast shield, while preventing external objects from damaging the negative pressure tube 31, effectively improving the service life of the flexible breast shield.

[0054] Furthermore, the negative pressure cover 32 is integrally formed and connected to the outer shell 4. The negative pressure tube 31 has a first connecting part 311 connected to the breast cover 2 and a milk outlet 313 communicating with the inner cavity of the negative pressure tube 31 on one side. The first connecting part 311 is 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.

[0055] The negative pressure cover 32 is integrally formed and connected to the outer shell 4, which reduces the need for additional seals and connectors, simplifies the overall structure of the breast pump, reduces production costs, and improves the overall integrity and structural strength of the breast pump by reducing the number of component connections. Furthermore, by providing a first connecting part 311 on one side of the negative pressure tube 31 to connect with the breast shield 2, and by having the first connecting part 311 cooperate with the negative pressure cover 32, a stable negative pressure chamber 34 is formed. The negative pressure chamber 34 helps the flexible breast shield to stably generate and maintain the milk required for pumping. The negative pressure effectively draws milk from the breast, improving the continuity, efficiency, and comfort of the pumping process. The design of the milk outlet 313 allows milk to flow smoothly from the negative pressure tube 31 for collection and storage. Furthermore, since the first connecting part 311 is connected to the breast shield 2, it supports the breast shield 2 when the various components of the breast pump are connected, preventing excessive deformation and ensuring proper milk intake. This effectively improves the stability and reliability of the flexible breast shield.

[0056] Furthermore, the design of the one-way valve 33 prevents milk backflow during the pumping process, ensuring a single airflow direction and thus improving pumping efficiency. It also enhances the hygiene of the pumping process, reducing the risk of bacterial growth. In addition, the one-way valve 33 helps control airflow, ensuring the stability and continuity of negative pressure within the negative pressure tube 31, preventing poor pumping results due to unstable airflow. This effectively improves the structural rationality and functionality of the flexible breast shield. Furthermore, designing the one-way valve 33 and the negative pressure tube 31 as a single unit reduces the number of parts in the breast pump, simplifies the assembly process, and effectively improves efficiency. This design improves production efficiency and reduces production costs. It also reduces the risk of air leakage by minimizing connections between components, ensuring the airtightness of the inner cavity of the negative pressure tube 31. This effectively enhances the stability and reliability of the breast pump. If the one-way valve 33 and the negative pressure tube 31 are designed to be detachably connected, users can easily disassemble the one-way valve 33 and clean it, ensuring the hygiene and durability of both. Therefore, the design of the one-way valve 33 and its integral molding or detachable connection with the negative pressure tube 31 not only optimizes the performance of the breast pump but also provides users with a better user experience.

[0057] Furthermore, the first connecting part 311 is provided with a first connecting groove 23 that mates with the negative pressure cover 32. The cross-sectional shape of the first connecting part 311 is L-shaped. The negative pressure cover 32 is engaged in the first connecting groove 23 to form the negative pressure cavity 34. The first connecting part 311 is provided with a first connecting port 3111 that communicates with 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 shield 2. The design of the first connecting groove 23 means that the negative pressure cover 32 forms the negative pressure cavity 34 by being engaged in the first connecting groove 23. Since the negative pressure tube 31 is made of a soft and elastic material, this connection method can effectively prevent the connection between the first connecting part 311 and the negative pressure cover 32 from loosening, ensuring the stability and sealing of the negative pressure cavity 34. This effectively improves the structural stability and reliability of the flexible breast shield, while also allowing the negative pressure cover 32 to be easily disassembled for user cleaning and maintenance, effectively improving the practicality and safety of the flexible breast shield.

[0058] Furthermore, the cross-sectional shape of the first connecting portion 311 is L-shaped, meaning that the first connecting portion 311 can, to a certain extent, limit the relative deformation of the bra 2 and the negative pressure tube 31, preventing the connection between the first connecting portion 311 and the negative pressure cover 32 from loosening due to excessive deformation between the bra 2 and the negative pressure tube 31. This effectively improves the structural stability and reliability of the flexible breast shield, and also further ensures the stability and sealing of the negative pressure cavity 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 cover 32 and the first connecting groove 23 at the first connecting portion 311, and maximize the connection between the negative pressure cover 32 and the first connecting groove 23. The connection stability and reliability are ensured, thereby guaranteeing the stability and sealing of the negative pressure chamber 34. Furthermore, the first connecting part 311 is provided with a first connecting port 3111 communicating with the milk outlet 313. This design ensures that the milk in the negative pressure tube 31 can flow out smoothly, facilitating the collection and storage of the milk. Furthermore, the hardness of the negative pressure cover 32 is greater than that of the negative pressure tube 31 and the breast shield 2. Since the materials of the negative pressure tube 31 and the breast shield 2 are soft and elastic, this design enables the negative pressure cover 32 to improve the structural strength of the flexible breast shield, preventing the flexible breast shield from deforming under the action of external force and causing the connection between the various components to loosen, effectively improving the structural stability and reliability of the flexible breast shield.

[0059] Furthermore, 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 connection port 321 that cooperates with the first connection part 311. The first connection part 311 is provided with a second connection groove 24 that cooperates with the second connection port 321. The second connection groove 24 is horizontally arranged along the extension direction of the negative pressure tube 31. The first connection part 311 is provided with a first extension part 3112 that cooperates with the breast pumping channel 3. The negative pressure cover 32 is provided on one side with a second connection part 322 that connects to an external electric pump and a third connection hole 323 that communicates with the negative pressure chamber 34. The third connection hole 323 is provided on the second connection part 322.

[0060] The negative pressure tube 31 abuts against the inner wall of the negative pressure cover 32, meaning that the negative pressure cover 32 can support the negative pressure tube 31. When the negative pressure tube 31 deforms, 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 deform within a controllable range, providing stable suction and effectively improving the structural stability and reliability of the flexible breast shield. The abutment between the negative pressure tube 31 and the inner wall of the negative pressure cover 32 can be the side wall of the negative pressure tube 31 abutting against the side wall of the negative pressure cover 32 and / or the bottom of the negative pressure tube 31 abutting against the bottom of the negative pressure cover 32.

[0061] Furthermore, the negative pressure cover 32 is provided with a second connection port 321 that mates with the first connection part 311, and the first connection part 311 is provided with a second connection groove 24 that mates with the second connection port 321. The design of the second connection port 321 and the second connection groove 24 mates with each other further enhances the connection stability between the negative pressure tube 31 and the negative pressure cover 32, ensuring the sealing of the negative pressure chamber 34 and the structural stability of the flexible breast pump cover. Furthermore, the second connection groove 24 is horizontally arranged along the extension direction of the negative pressure tube 31, which means that the mating connection between the first connection groove 23 and the negative pressure cover 32, and the mating connection between the second connection groove 24 and the second connection port 321, provides fixation and limitation in multiple directions, making the connection between the negative pressure cover 32 and the negative pressure tube 31 more stable. In addition, the horizontally arranged second connection groove 24 also plays a guiding role, reducing the difficulty of aligning the negative pressure cover 32 and the negative pressure tube 31, and also making the negative pressure cover 32 easy to disassemble, facilitating user cleaning and maintenance, and effectively improving the practicality and convenience of the breast pump.

[0062] Example 3

[0063] Unlike Embodiment 1, the deformable part 312 is arranged around the circumference of the negative pressure pipe 31.

[0064] Example 4

[0065] Unlike Embodiment 1, the deformable portion 312 is distributed on the left and right sides of the negative pressure pipe 31.

[0066] Example 5

[0067] Unlike Embodiment 1, the cross-section of the deformed portion 312 is serrated.

[0068] Example 6

[0069] Unlike Embodiment 1, the one-way valve 33 is detachably connected to the negative pressure pipe 31.

[0070] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A flexible breast shield, characterized in that, The device includes a breast bra (2) and a breast suction channel (3) integrally connected to the breast bra (2). The breast suction channel (3) includes a negative pressure tube (31) connected to the breast bra (2) for supplying milk flow and generating negative pressure. The negative pressure tube (31) is provided with an integrally formed deformable part (312). The deformable part (312) is arranged along the opening of the breast bra (2) toward the end of the negative pressure tube (31). The deformable part (312) deforms under the action of a negative pressure source to form negative pressure inside the negative pressure tube (31). The breast bra (2) and the negative pressure tube (31) are made of elastic material. The negative pressure tube (31) has a first connecting part (311) on one side that is connected to the breast bra (2), and the cross-sectional shape of the first connecting part (311) is L-shaped.

2. The flexible breast shield as described in claim 1, characterized in that, The deformable part (312) is arranged around the negative pressure pipe (31) axially or circumferentially, or distributed on the left and right sides of the negative pressure pipe (31).

3. A flexible breast shield as described in claim 1, characterized in that, The negative pressure tube (31) gradually narrows from the breast bra (2) toward the end of the negative pressure tube (31), and the cross-sectional diameter of the deformable part (312) decreases as the negative pressure tube (31) gradually narrows.

4. A flexible breast shield as described in claim 1, characterized in that, The deformable part (312) is provided in multiple and spaced apart, and the cross section of the deformable part (312) is wavy or sawtooth.

5. A flexible breast shield as described in claim 1, characterized in that, The breast pumping channel (3) also includes a one-way valve (33) connected to the negative pressure tube (31), and the one-way valve (33) is integrally formed with the negative pressure tube (31) or detachably connected.

6. A flexible breast shield as described in claim 1, characterized in that, The deformable portion (312) includes a plurality of protrusions (3121) with a smooth transition between each of the protrusions (3121).

7. A breast pump, characterized in that, The device includes a flexible breast shield as described in any one of claims 1-6, a housing (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 housing (4) is provided with a negative pressure cover (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). The negative pressure tube (31) has a milk outlet (313) on one side that communicates with the inner cavity of the negative pressure tube (31). The first connecting part (311) is 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 part (311) is provided with a first connecting groove (23) that cooperates with the negative pressure cover (32). The negative pressure cover (32) is engaged in the first connecting groove (23) to form the negative pressure chamber (34). The first connecting part (311) is provided with a first connecting port (3111) that communicates with the milk outlet (313). The first connecting groove (23) is arranged in a ring around 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) abuts against the inner wall of the negative pressure cover (32). The negative pressure cover (32) is provided with a second connection port (321) that is connected to the first connection part (311). The first connection part (311) is provided with a second connection groove (24) that is connected to the second connection port (321). The second connection groove (24) is horizontally arranged along the extension direction of the negative pressure tube (31). The first connection part (311) is provided with a first extension part (3112) that is connected to the breast pump channel (3). The negative pressure cover (32) is provided with a second connection part (322) that is connected to an external electric pump and a third connection hole (323) that communicates with the negative pressure chamber (34). The third connection hole (323) is provided on the second connection part (322).

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