Flexible breast suction cover and breast pump

Abstract

The utility model 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 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 the negative pressure source, so that negative pressure is formed in the negative pressure tube, the breast cover and the negative pressure tube are integrally formed, the negative pressure tube has the functions of a flared tube and a diaphragm of an existing breast pump at the same time, and when the negative pressure is generated, the negative pressure is generated. The breast pump is simple in structure and 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 utility model relates to a breast pump field, concretely is a flexible breast shield and breast pump. BACKGROUND

[0002] With the progress of science and the development of society, people's attention to health and nutrition gradually increases, the benefits of breastfeeding for infant health are widely promoted, and more and more mothers choose breastfeeding. Breast pumps, as one of the important tools to support breastfeeding, are continuously developing under the promotion of market demand, technological innovation and consumer demand and other factors.

[0003] The breast pump is generally composed of a horn assembly and a breast passage, wherein the breast passage is independently arranged and connected with the horn assembly. The horn assembly includes a horn cover and a horn pipe connected with the horn cover. The breast passage includes a negative pressure generating part connected with the horn pipe and a diaphragm arranged in the negative pressure generating part for generating negative pressure. Such a design makes the breast pump bulky, inconvenient to carry out, reduces the portability of the breast pump, and increases the number of parts of the breast pump, thereby reducing production efficiency and increasing production cost. Therefore, a flexible breast shield and breast pump need to be developed to solve the problems of large size, many parts, low portability, low production efficiency and high production cost of the existing breast pump. SUMMARY

[0004] In view of the above-mentioned problems of the existing breast pump, such as large size, many parts, low portability, low production efficiency and high production cost, the technical solution adopted by the utility model to solve the technical problems is:

[0005] A flexible breast shield includes a breast cover and a breast passage integrally connected with the breast cover. The breast passage includes a negative pressure pipe connected with the breast cover for supplying milk and generating negative pressure. The negative pressure pipe is provided with an integral deformation part. The deformation part is arranged along the opening of the breast cover towards the end of the negative pressure pipe. The deformation part deforms under the action of a negative pressure source to form negative pressure in the negative pressure pipe.

[0006] Further, the deformation part is arranged along the axial direction of the negative pressure pipe, or circumferentially around the negative pressure pipe, or distributed on the left and right sides of the negative pressure pipe.

[0007] Further, the negative pressure pipe gradually narrows from the breast cover to the end of the negative pressure pipe. The cross-sectional diameter of the deformation part decreases with the gradual narrowing of the negative pressure pipe.

[0008] Further, the deformation part is provided with multiple deformation parts arranged at intervals. The cross section of the deformation part is in a wave shape or a zigzag shape.

[0009] Further, the breast milk suction channel further comprises a one-way valve connected with the negative pressure pipe, and the one-way valve is integrally formed with the negative pressure pipe or detachably connected with the negative pressure pipe.

[0010] Further, the deformation part comprises a plurality of protrusions, and each of the protrusions is smoothly connected with adjacent protrusions.

[0011] The breast pump comprises the flexible breast cup, the shell connected with the flexible breast cup, the electric pump, and the power supply electrically connected with the electric pump, and the shell is provided with a negative pressure cover connected with the negative pressure pipe.

[0012] Further, the negative pressure cover is integrally connected with the shell, one side of the negative pressure pipe is provided with a first connecting part connected with the breast cup and a milk outlet communicating with an inner cavity of the negative pressure pipe, and the first connecting part is connected with the negative pressure cover to form a negative pressure cavity between the negative pressure pipe and the negative pressure cover.

[0013] Further, the first connecting part is provided with a first connecting groove matched with the negative pressure cover, a cross section of the first connecting part is in an L shape, the negative pressure cover is clamped in the first connecting groove to form the negative pressure cavity, the first connecting part is provided with a first connecting opening communicating with the milk outlet, the first connecting groove is annularly arranged outside the negative pressure pipe, and the negative pressure cover has a hardness greater than that of the negative pressure pipe and the breast cup.

[0014] Further, the negative pressure pipe abuts against an inner wall of the negative pressure cover, the negative pressure cover is provided with a second connecting opening matched with the first connecting part, the first connecting part is provided with a second connecting groove matched with the second connecting opening, the second connecting groove is horizontally arranged along an extending direction of the negative pressure pipe, the first connecting part is provided with a first extending part matched with the breast milk suction channel, one side of the negative pressure cover is provided with a second connecting part connected with the external electric pump and a third connecting hole communicating with the negative pressure cavity, and the third connecting hole is arranged on the second connecting part.

[0015] The breast pump has the following advantages:

[0016] The breast cup and the negative pressure pipe are integrally formed, the deformation part is arranged on the negative pressure pipe, the negative pressure pipe has the functions of the horn pipe and the diaphragm of the existing breast pump, can serve as a milk outlet channel while generating negative pressure, reduces the size of the breast pump, effectively improves the portability of the breast pump, reduces the number of parts of the breast pump, effectively improves the production efficiency and reduces the production cost, and solves the problems that the breast milk suction channel of the existing breast pump is independently arranged, connected with the horn assembly, the breast pump has a large size and is inconvenient to carry out, the portability of the breast pump is reduced, the number of parts of the breast pump is large, the production efficiency is reduced, and the production cost is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure diagram of a flexible breast cup of the utility model.

[0018] Figure 2 A structure diagram of a flexible breast cup of the utility model.

[0019] Figure 3 A sectional view of a flexible breast cup of the utility model.

[0020] Figure 4 A structure diagram of a flexible breast cup of the utility model.

[0021] Figure 5 A structure diagram of a flexible breast cup of the utility model.

[0022] Figure 6 A sectional view of a flexible breast cup of the utility model.

[0023] Figure 7 A structure diagram of a flexible breast cup of the utility model.

[0024] Figure 8 A structure diagram of a flexible breast cup of the utility model.

[0025] Figure 9 A structure diagram of a flexible breast cup of the utility model.

[0026] Figure 10 A structure diagram of a flexible breast cup of the utility model.

[0027] Figure 11 A structure diagram of a flexible breast cup of the utility model.

[0028] Figure 12 A connecting diagram of a shell and a negative pressure cover of a breast pump of the utility model.

[0029] Figure 13 A structure diagram of a breast pump of the utility model.

[0030] Figure 14 A sectional view of a breast pump of the utility model.

[0031] Figure 15 A local connecting sectional view of a breast pump of the utility model. DETAILED DESCRIPTION

[0032] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0033] Example 1

[0034] Please refer to Figures 1 to 11 The flexible breast pump includes a breast cup 2, a milk suction channel 3 connected with the breast cup 2, the milk suction channel 3 includes a negative pressure tube 31 connected with the breast cup 2 for milk liquid outflow and negative pressure generation, the negative pressure tube 31 is provided with a deformation part 312 formed integrally, the deformation part 312 is arranged along the opening of the breast cup 2 to the end of the negative pressure tube 31, and the deformation part 312 deforms under the action of a negative pressure source to form a negative pressure in the negative pressure tube 31.

[0035] The breast cup 2 is a component directly contacting the breast, and when milk suction is performed, the breast cup 2 can be completely fitted with the breast to ensure that the negative pressure generated by the breast pump can smoothly suck out the breast milk, and the milk suction channel 3 is a component for generating negative pressure in the flexible breast pump. The existing breast pump generally has a horn tube for milk liquid outflow and a negative pressure bowl connected with the horn tube for generating negative pressure, and the negative pressure bowl is provided with a diaphragm for generating negative pressure through reciprocating motion. The milk suction channel 3 includes a negative pressure tube 31 connected with the breast cup 2, which acts as a channel for milk liquid outflow in the flexible breast pump and also plays a role in generating negative pressure. Compared with the structure of the existing breast pump, the number of components is reduced, the assembly process of the flexible breast pump is simplified, the production efficiency is effectively improved, the production cost is reduced, the overall volume of the flexible breast pump is greatly reduced, and the portability of the flexible breast pump is effectively improved.

[0036] Specifically, the negative pressure tube 31 is provided with a deformation part 312, which is a part of the negative pressure tube 31 for generating negative pressure. The deformation part 312 can generate the necessary negative pressure in the working process of the negative pressure tube 31 through its own deformation, thereby achieving the purpose of milk suction.

[0037] Further, the deformation part 312 is arranged from the opening of the breast cup 2 to the end of the negative pressure tube 31. This design can as much as possible improve the deformation ability of the deformation part 312, thereby improving the negative pressure effect and milk suction efficiency of the flexible breast pump. Further, the breast cup 2 and the negative pressure tube 31 are designed in an integral manner, which can further reduce the number of components, simplify the assembly process of the breast pump, improve the production efficiency and reduce the production cost, enhance the stability and sealing performance of the structure, reduce the connection gap between components, make the flexible breast pump easy to clean, and effectively reduce the risk of bacterial growth and cross infection.

[0038] Further, due to the functional needs of the breast shield 2 and the negative pressure tube 31, silica gel or rubber is used as the material for making the breast shield 2 and the negative pressure tube 31, but not limited to the above two materials. Because silica gel and rubber have excellent softness and elasticity, they can make the breast shield 2 fit the shape of the breast well and provide a comfortable breastfeeding 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 and tear of frequent deformation of the negative pressure tube 31, effectively improve the service life and reliability of the flexible breast pump, and effectively improve the portability of the breast pump. At the same time, it reduces the number of parts of the breast pump, effectively improves the production efficiency and reduces the production cost. It solves the problems of the existing breast pump, such as the independent setting of the breast milk suction channel, the connection with the horn assembly, the large size of the breast pump, the inconvenience of carrying out, the reduction of the portability of the breast pump, the large number of parts, the reduction of the production efficiency and the increase of the production cost.

[0039] Further, the deformation part 312 is arranged along the axial direction of the negative pressure tube 31.

[0040] Such a design means that the deformation part 312 is distributed on the opposite sides of the negative pressure tube 31 parallel to the horizontal direction. Such a design can ensure that the deformation part 312 can deform regularly and controllably during work, thereby generating stable negative pressure and effectively improving the stability of the suction force of the flexible breast pump. When the deformation part 312 extends along the axial direction of the negative pressure tube 31, it allows the deformation part 312 to deform towards the side 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, ensure that the negative pressure generated by the deformation part 312 remains stable, improve the stability of the suction force of the flexible breast pump, and facilitate the user to clean the negative pressure tube 31 after use, thereby effectively improving the hygiene of the flexible breast pump. When the deformation part 312 extends along the circumferential direction of the negative pressure tube 31, it allows the deformation part 312 to deform towards the side and end face of the negative pressure tube 31, thereby realizing the process of generating negative pressure. Such a design can also increase the space for effective deformation of the deformation part 312, thereby enhancing the negative pressure effect and effectively improving the breastfeeding efficiency of the flexible breast pump.

[0041] Specifically, on the basis that the deformation portion 312 extends along the axial direction or the circumferential direction of the negative pressure tube 31, the deformation portion 312 can be arranged in a spiral shape on the negative pressure tube 31, or can be arranged in a straight line on the negative pressure tube 31. Both of these two shapes of the deformation portion 312 can further improve the negative pressure effect of the deformation portion 312, thereby improving the milk suction performance and efficiency of the flexible breast shield. Further, the deformation portion 312 is arranged on both sides of the negative pressure tube 31. With such a design, the deformation of the deformation portion 312 can be more balanced, and the generated negative pressure is uniformly distributed on the negative pressure tube 31, avoiding excessive or insufficient local pressure of the negative pressure tube 31, thereby improving the milk suction efficiency of the flexible breast shield. Specifically, the deformation portion 312 can be mirror-symmetrically arranged on the left and right sides of the negative pressure tube 31. With such a design, when the negative pressure tube 31 is subjected to external force, the deformation of the deformation portion 312 on the left and right sides of the negative pressure tube 31 can be more balanced, thereby making the negative pressure generated by the negative pressure tube 31 more uniform, effectively improving the stability and effectiveness of the negative pressure generated by the flexible breast shield.

[0042] Further, the negative pressure tube 31 gradually narrows from the breast shield 2 to the end of the negative pressure tube 31, and the cross-sectional diameter of the deformation portion 312 decreases with the gradual narrowing of the negative pressure tube 31.

[0043] The negative pressure tube 31 gradually narrows from the breast shield 2 to the end of the negative pressure tube 31. With such a design, the airflow path in the negative pressure tube 32 can be optimized, the efficiency of generating negative pressure can be improved, and the channel for milk flow out is also optimized, the efficiency of milk flow out in the lumen of the negative pressure tube 31 is improved, and the situation that milk is left in the lumen of the negative pressure tube 31 is avoided, thereby effectively improving the structural rationality of the flexible breast shield.

[0044] Further, the cross-sectional diameter of the deformation part 312 gradually decreases along the narrowing of the negative pressure tube 31, which means that the cross-sectional diameter of the deformation part 312 near one end of the breast cover 2 is larger, while the cross-sectional diameter of the deformation part 312 near the other end of the negative pressure tube 31 is smaller. Such a design makes the deformation part 312 near one end of the breast cover 2 have stronger deformation ability, which can maximize the suction force of the negative pressure generated by the deformation part 312 on the breast, thereby improving the efficiency of breast pumping. On the other hand, the deformation part 312 near the other end of the negative pressure tube 31 is designed to have weaker deformation ability, which can maximize the structural stability of the negative pressure tube 31 without affecting the efficiency of breast pumping, thereby avoiding excessive deformation of the deformation part 312 due to excessive external suction force, which can not generate normal negative pressure. Therefore, this design can effectively improve the stability of the negative pressure of the flexible breast cover.

[0045] Further, the deformation part 312 is provided with multiple deformation parts 312, which are arranged at intervals.

[0046] By providing multiple deformation parts 312, 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. Further, by arranging the multiple deformation parts 312 at intervals, the pressure distribution of the negative pressure tube 31 can be more uniform, which can reduce the local pressure that is too large or too small, thereby effectively improving the efficiency and stability of the negative pressure generation. Further, by designing the cross-section of the deformation part 312 in a wave shape, the deformation part 312 can better fit the natural shape of the breast, thereby reducing the feeling of oppression and discomfort, and improving the user experience. By designing the cross-section of the deformation part 312 in a sawtooth shape, more contact points between the breast cover 2 and the breast can be provided, which can increase the friction between them, reduce sliding, and effectively improve the sealing and stability of the connection between the flexible breast cover and the breast.

[0047] Further, the breast pumping channel 3 further comprises 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] Further, the deformation part 312 comprises multiple protrusions 3121, and each protrusion 3121 is smoothly connected to the adjacent protrusion 3121.

[0049] The design of the protrusions 3121 allows the negative pressure tube 31 to have a certain elastic deformation capability in a certain area, which 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 cup. Specifically, the cross section of the protrusion 3121 can be arc-shaped. Such a design can make the protrusion 3121 more easily deformed when under pressure, thereby generating the required negative pressure. Meanwhile, 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 cup. Furthermore, the smooth transition between each protrusion 3121 can make the protrusion 3121 more easily deformed when under pressure, reducing the negative pressure required for the deformation of the protrusion 3121, so that the deformation part 312 can more efficiently generate negative pressure, effectively improving the milk suction efficiency of the flexible breast cup.

[0050] Embodiment 2

[0051] Please refer to Figures 12 to 15 , a breast pump, the flexible breast cup, the shell 4 connected to the flexible breast cup, the electric pump 5, and the power source 6 electrically connected to the electric pump 5, the shell 4 is provided with a negative pressure cover 32 connected to the negative pressure tube 31.

[0052] The design of the breast pump integrates the optimized flexible breast cup, shell 4, electric pump, and power source 6, achieving efficient and stable negative pressure generation effect, while improving user comfort and milk suction effect. The flexible breast cup integrates the breast cup 2 and the negative pressure tube 31, and sets a deformation part 312 on the negative pressure tube 31, so that the negative pressure tube 31 has the functions of the existing breast pump's horn tube and diaphragm, serving as a milk outflow channel while generating negative pressure, reducing the size of the breast pump, effectively improving the portability of the breast pump, reducing the number of parts of the breast pump, effectively improving the production efficiency and reducing the production cost, solving the problems of the existing breast pump, such as the independent setting of the milk suction channel, the connection with the horn assembly, the large size of the breast pump, the inconvenience of carrying and going out, the low portability of the breast pump, the large number of parts, the low production efficiency, and the high production cost.

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

[0054] Further, the negative pressure cover 32 is integrally connected to the shell 4, the negative pressure pipe 31 is provided with a first connecting part 311 connected with the breast cover 2 and a milk outlet 313 communicated with the inner cavity of the negative pressure pipe 31, and the first connecting part 311 is connected with the negative pressure cover 32 to form a negative pressure cavity 34 between the negative pressure pipe 31 and the negative pressure cover 32.

[0055] The negative pressure cover 32 is integrally connected to the shell 4, which can reduce additional seals and connectors, simplify the overall structure of the breast pump, reduce production costs, improve the overall and structural strength of the breast pump, and further form a stable negative pressure cavity 34 by providing the first connecting part 311 connected with the breast cover 2 on one side of the negative pressure pipe 31 and connecting the first connecting part 311 with the negative pressure cover 32, which can help the flexible breast cover to stably generate and maintain the negative pressure required for breast pumping, thereby effectively pumping milk from the breast, effectively improving the continuity, efficiency and comfort of the breast pumping process. The design of the milk outlet 313 allows milk to flow smoothly from the negative pressure pipe 31 for collection and storage. In addition, the first connecting part 311 can support the breast cover 2 when the components of the breast pump are connected, preventing the breast cover 2 from deforming excessively and preventing normal breast pumping, effectively improving the stability and reliability of the flexible breast cover.

[0056] Further, the design of the one-way valve 33 can prevent backflow of milk during breast pumping, ensuring the single direction of air flow, thereby improving breast pumping efficiency and improving the hygiene of the breast pumping process, reducing the risk of bacterial growth. In addition, the one-way valve 33 can help control air flow to ensure the stability and continuity of the negative pressure in the negative pressure pipe 31, avoiding poor breast pumping caused by unstable air flow, effectively improving the structural rationality and functionality of the flexible breast cover. Further, the one-way valve 33 and the negative pressure pipe 31 are designed to be integrally formed, which can reduce the number of components of the breast pump, simplify the assembly process, effectively improve the production efficiency and reduce the production cost, and reduce the connection between components to reduce the risk of air leakage, ensuring the sealing of the inner cavity of the negative pressure pipe 31 and effectively improving the stability and reliability of the breast pump. If the one-way valve 33 and the negative pressure pipe 31 are designed to be detachably connected, the user can easily detach and clean the one-way valve 33, ensuring the hygiene and durability of the one-way valve 33 and the negative pressure pipe 31. Therefore, the design of the one-way valve 33 and the one-way valve 33 and the negative pressure pipe 31 integrally formed or detachably connected not only optimizes the performance of the breast pump, but also provides a better user experience.

[0057] Further, the first connecting part 311 is provided with a first connecting groove 23 matched with the negative pressure cover 32, the cross section shape of the first connecting part 311 is L-shaped, the negative pressure cover 32 is clamped 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 communicated with the milk outlet 313, the first connecting groove 23 is annularly arranged outside 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 cover 2. The design of the first connecting groove 23 means that the negative pressure cover 32 forms the negative pressure cavity 34 by being clamped in the first connecting groove 23. Since the negative pressure tube 31 is made of soft and elastic material, such a connecting mode can effectively prevent the first connecting part 311 from being disconnected from the negative pressure cover 32, ensure the stability and sealing performance of the negative pressure cavity 34, effectively improve the structural stability and reliability of the flexible breast cover, and make the negative pressure cover 32 easily detachable, facilitate the user to clean and maintain, and effectively improve the practicability and safety of the flexible breast cover.

[0058] Further, the cross section shape of the first connecting part 311 is L-shaped, which means that the first connecting part 311 can limit the relative deformation of the breast cover 2 and the negative pressure tube 31 to a certain extent, prevent the first connecting part 311 from being disconnected from the negative pressure cover 32 due to excessive deformation between the breast cover 2 and the negative pressure tube 31, effectively improve the structural stability and reliability of the flexible breast cover, and further ensure the stability and sealing performance of the negative pressure cavity 34. In addition, the first connecting groove 23 is annularly arranged outside the negative pressure tube 31, which can maximize the connecting area of the negative pressure cover 32 and the first connecting groove 23 at the first connecting part 311, improve the connecting stability and reliability of the negative pressure cover 32 and the first connecting groove 23 as much as possible, and further ensure the stability and sealing performance of the negative pressure cavity 34. Further, the first connecting part 311 is provided with a first connecting port 3111 communicated with the milk outlet 313, which can ensure that the milk in the negative pressure tube 31 can flow out smoothly, facilitate the collection and storage of the milk. Further, the hardness of the negative pressure cover 32 is greater than that of the negative pressure tube 31 and the breast cover 2. Since the negative pressure tube 31 and the breast cover 2 are made of soft and elastic material, the design of the negative pressure cover 32 can improve the structural strength of the flexible breast cover, avoid the disconnection between the components due to the deformation of the flexible breast cover under external force, and effectively improve the structural stability and reliability of the flexible breast cover.

[0059] Further, the negative pressure pipe 31 is in abutment with the inner wall of the negative pressure cover 32, the negative pressure cover 32 is provided with a second connecting port 321 matched with the first connecting part 311, the first connecting part 311 is provided with a second connecting groove 24 matched with the second connecting port 321, the second connecting groove 24 is horizontally arranged along the extending direction of the negative pressure pipe 31, the first connecting part 311 is provided with a first extending part 3112 matched with the breast pumping channel 3, one side of the negative pressure cover 32 is provided with a second connecting part 322 connected with an external electric pump and a third connecting hole 323 communicated with the negative pressure cavity 34, and the third connecting hole 323 is arranged on the second connecting part 322.

[0060] The negative pressure pipe 31 is in abutment with the inner wall of the negative pressure cover 32, which means that the negative pressure cover 32 can support the negative pressure pipe 31, and when the negative pressure pipe 31 deforms, the negative pressure cover 32 can limit the deformation direction of the negative pressure pipe 31, thereby controlling the deformation of the negative pressure pipe 31, ensuring that the negative pressure pipe 31 can deform within a controllable range, providing stable suction force, and effectively improving the structural stability and reliability of the flexible breast pumping cover. The negative pressure pipe 31 can be in abutment with the side wall of the negative pressure cover 32 and / or the bottom of the negative pressure pipe 31 can be in abutment with the bottom of the negative pressure cover 32.

[0061] Further, the negative pressure cover 32 is provided with a second connecting port 321 matched with the first connecting part 311, and the first connecting part 311 is provided with a second connecting groove 24 matched with the second connecting port 321. Through the design of the matched connection of the second connecting port 321 and the second connecting groove 24, the connection stability between the negative pressure pipe 31 and the negative pressure cover 32 is further enhanced, ensuring the sealing of the negative pressure cavity 34 and the structural stability of the flexible breast pumping cover. Further, the second connecting groove 24 is horizontally arranged along the extending direction of the negative pressure pipe 31, which means that the matched connection of the first connecting groove 23 and the negative pressure cover 32 and the matched connection of the second connecting groove 24 and the second connecting port 321 provide multiple direction fixation and limiting, making the connection between the negative pressure cover 32 and the negative pressure pipe 31 more stable. In addition, the horizontally arranged second connecting groove 24 also plays a guiding role, reducing the difficulty of the alignment connection between the negative pressure cover 32 and the negative pressure pipe 31, and also making the negative pressure cover 32 easy to disassemble, facilitating the cleaning and maintenance of the user, effectively improving the practicability and convenience of the breast pump.

[0062] Embodiment 3

[0063] Different from embodiment 1, the deformation part 312 is arranged along the circumference of the negative pressure pipe 31.

[0064] Embodiment 4

[0065] Different from Embodiment 1, the deformation portions 312 are distributed on the left and right sides of the negative pressure pipe 31.

[0066] Embodiment 5

[0067] Different from Embodiment 1, the cross section of the deformation portion 312 is sawtooth-shaped.

[0068] Embodiment 6

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

[0070] The above only further illustrates the technical content of the present application with examples, so that the reader can more easily understand, but does not represent that the embodiments of the present application are limited to this, any technical extension or re-creation made according to the present application is also protected by the present application. The protection scope of the present application is subject to 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 the negative pressure source so that negative pressure is formed inside the negative pressure tube (31).

2. The flexible breast shield according to 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 according to 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 according to 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 according to 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 according to 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 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).

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 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 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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