Breast pump

Abstract

The utility model discloses a breast pump and relates to the technical field of breast pumps, the breast pump comprises a collecting assembly and a driving assembly, the collecting assembly comprises a flange, a diaphragm assembly and a milk storage container, the flange comprises a fitting part used for fitting a breast and a milk sucking channel, and the milk storage container is communicated with the milk sucking channel; the diaphragm assembly comprises a negative pressure diaphragm and a connecting piece, and the negative pressure diaphragm is connected with the connecting piece; the driving assembly is detachably connected with the collecting assembly, the driving assembly comprises a shell, a transmission part and a driving part, and the driving part and the transmission part are installed on the shell; a mounting channel is formed in one of the transmission piece and the connecting piece, a limiting part is arranged on the other one, when the driving assembly is connected with the collecting assembly, the limiting part is matched with the mounting channel, and the driving piece can drive the transmission piece to move so as to drive the negative pressure diaphragm to deform, so that negative pressure is generated in the breast sucking channel. According to the technical scheme provided by the utility model, the acquisition assembly and the driving assembly are easier to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of breast pump technology, and in particular to a breast pump. Background Technology

[0002] Portable breast pumps are small and easy to carry, making them ideal for use when out and about, allowing mothers to conveniently express milk anywhere. Mothers can express milk whenever they need and at their own pace, reducing the discomfort of engorgement. Regular use of a breast pump can help stimulate the mammary glands and promote milk production, especially for new mothers who are starting to breastfeed, aiding in establishing milk production. For mothers who cannot breastfeed directly or need to return to work, a breast pump is an essential tool supporting breastfeeding.

[0003] Existing breast pumps consist of a collection component and a drive component. The collection component generally needs to come into contact with breast milk and needs to be cleaned after use, while the drive component usually only provides negative pressure to the collection component and does not come into direct contact with the milk, so it does not need to be cleaned. The connection between the collection component and the drive component requires that their internal structures be connected in place at the same time, which makes it difficult to disassemble and assemble the breast pump and extremely inconvenient to use. Utility Model Content

[0004] The main purpose of this invention is to propose a breast pump that addresses the problem that the connection between the collection component and the drive component requires ensuring that their internal structures are simultaneously connected, which makes the breast pump difficult to assemble and disassemble and extremely inconvenient to use.

[0005] To achieve the above objectives, the present invention proposes a breast pump comprising a collection component and a drive component. The collection component includes a flange, a diaphragm component, and a milk storage container. The flange includes a fitting portion for conforming to the breast and a milk suction channel, and the milk storage container communicates with the milk suction channel. The diaphragm component includes a negative pressure diaphragm and a connector, and the negative pressure diaphragm and the connector are connected. The drive component is detachably connected to the collection component. The drive component includes a housing, a transmission component, and a drive member, and the drive member and the transmission component are mounted on the housing. One of the transmission component and the connector forms an installation channel, and the other has a limiting portion. When the drive component is connected to the collection component, the limiting portion cooperates with the installation channel, and the drive member can drive the transmission component to move, thereby causing the negative pressure diaphragm to deform, so as to generate negative pressure in the milk suction channel.

[0006] In one embodiment, the transmission component has a limiting groove communicating with the installation channel, and the connector has a connecting portion connecting the limiting portion and the negative pressure diaphragm. When the drive assembly is connected to the acquisition assembly, the limiting groove allows the connecting portion to pass through.

[0007] In one embodiment, the connector extends along the central axis of the negative pressure diaphragm, and when the drive assembly is connected to the acquisition assembly, the extension direction of the connector is set at an angle to the extension direction of the mounting channel.

[0008] In one embodiment, the limiting part has a first mating surface and a second mating surface opposite to each other. When the driving component is connected to the acquisition component, the first mating surface and the second mating surface respectively mate with the two opposite walls of the mounting channel.

[0009] In one embodiment, the first mating surface and the second mating surface are inclined toward each other along the insertion direction of the limiting portion and the mounting channel.

[0010] In one embodiment, when the end of the drive member away from the transmission member moves, the other end of the drive member, supported by the housing, drives the transmission member to move along the extension direction of the transmission member.

[0011] In one embodiment, one of the driving member and the housing has a rotating hole, and the other has a rotating shaft protruding from it. The rotating shaft is rotatably disposed in the rotating hole. The driving member is manually driven to move.

[0012] In one embodiment, the drive assembly further includes a reset elastic element, which is elastically connected to both the drive element and the housing.

[0013] In one embodiment, the drive assembly includes two drive members, which are respectively connected to opposite sides of the transmission member.

[0014] In one embodiment, the negative pressure diaphragm and the connector are integrally formed.

[0015] This invention provides a highly efficient and convenient breast milk extraction device by employing a breast pump that combines a collection component and a drive component. The collection component includes a flange, a diaphragm assembly, and a milk storage container. The flange conforms to the breast and forms a milk extraction channel, while the milk storage container collects milk. The milk extraction channel and the milk storage chamber are interconnected. The negative pressure diaphragm of the diaphragm assembly is sealed to the flange, and the connecting component is connected to the transmission component of the drive component to ensure the generation of negative pressure. The drive component, through the cooperation of the housing, transmission component, and drive component, drives the negative pressure diaphragm, thereby generating suction and promoting milk extraction. When the housing is connected to the flange, one of the transmission component and the connecting component forms an installation channel, while the other has a limiting part that accommodates and limits the installation channel. The drive component can drive the transmission component to move the negative pressure diaphragm away from or towards the flange, generating negative pressure. This design simplifies the assembly and disassembly process of the breast pump, allowing users to quickly and easily connect and disconnect the collection component and the drive component, improving ease of use. Meanwhile, the design of the limiting part and the installation channel ensures the stability of the connection, avoiding problems such as unstable negative pressure or leakage caused by improper connection, thereby improving the safety and reliability of the breast pump. This invention, by introducing the design of the limiting part and the installation channel, provides a clear positioning point, making the connection between the housing and the flange more accurate and stable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the breast pump provided by this utility model;

[0018] Figure 2 A schematic diagram of another embodiment of the breast pump provided by this utility model;

[0019] Figure 3 A schematic diagram of another embodiment of the breast pump provided by this utility model;

[0020] Figure 4 A cross-sectional schematic diagram of an embodiment of the breast pump provided by this utility model;

[0021] Figure 5 A schematic diagram of another embodiment of the breast pump provided by this utility model;

[0022] Figure 6 A schematic diagram of the structure of an embodiment of the transmission component provided by this utility model;

[0023] Figure 7 A schematic diagram of an embodiment of the connector and negative pressure diaphragm provided by this utility model.

[0024] Explanation of icon numbers:

[0025] 100. Breast pump; 1. Collection component; 11. Flange; 12. Diaphragm assembly; 13. Milk storage container; 11a. Milk suction channel; 13a. Milk storage chamber; 121. Negative pressure diaphragm; 122. Connector; 2. Drive assembly; 21. Housing; 22. Transmission component; 23. Drive component; 22a. Installation channel; 1221. Limiting part; 22b. Limiting groove; 1222. Connecting part; 1221a. First mating surface; 1221b. Second mating surface; 21a. Rotating hole; 231. Rotating shaft; 24. Reset elastic element.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] This utility model proposes a breast pump 100.

[0031] Please see Figures 1 to 7 In one embodiment of this utility model, the breast pump 100 includes a collection component 1 and a drive component 2. The collection component 1 includes a flange 11, a diaphragm component 12, and a milk storage container 13. The flange 11 includes a fitting part for conforming to the breast and a milk suction channel 11a. The milk storage container 13 communicates with the milk suction channel 11a. The diaphragm component 12 includes a negative pressure diaphragm 121 and a connector 122, which are connected. The drive component 2 is detachably connected to the collection component 1. The moving component 2 includes a housing 21, a transmission component 22, and a driving component 23. The driving component 23 and the transmission component 22 are mounted on the housing 21. One of the transmission component 22 and the connecting component 122 forms an installation channel 22a, and the other is provided with a limiting part 1221. When the driving component 2 is connected to the collecting component 1, the limiting part 1221 cooperates with the installation channel 22a. The driving component 23 can drive the transmission component 22 to move, thereby causing the negative pressure diaphragm 121 to deform, so as to generate negative pressure in the milk suction channel 11a.

[0032] In one embodiment, the collection assembly 1 comprises a flange 11, a diaphragm assembly 12, and a milk storage container 13. One end of the flange 11 is designed to fit against the breast for direct milk extraction; the other end forms a milk extraction channel 11a, which is directly connected to the milk storage chamber 13a within the milk storage container 13, ensuring smooth milk flow into the container. The diaphragm assembly 12 comprises a negative pressure diaphragm 121 and a connector 122. The negative pressure diaphragm 121 is responsible for creating negative pressure during milk extraction, while the connector 122 is located on the side of the negative pressure diaphragm 121 facing away from the flange 11, ensuring that the diaphragm 121 can be correctly guided and driven. The other end of the connector 122 is designed with a connector 1221 for cooperating with a corresponding transmission component 221 of the drive assembly 2 to transmit driving force. The flange 11's direct fit against the breast improves the efficiency and comfort of milk extraction. The sealing connection between the negative pressure diaphragm 121 and the flange 11 ensures airtightness and hygiene during milk expression, preventing milk leakage and contamination. The connector 1221 of the connector 122 simplifies the connection process with the drive assembly 2, making the assembly and operation of the entire breast pump 100 easier and faster, while also improving the stability and reliability of the breast pump 100. Overall, this design improves the ease of use of the breast pump 100, reduces operational complexity, and ensures hygiene and efficiency during the milk expression process.

[0033] It should be noted that the drive assembly 2 consists of a housing 21, a transmission component 22, and a drive component 23. The drive component 23 is fixed to the housing 21 and connected to the transmission component 22 via a drive connection to transmit power. One end of the transmission component 22 is designed with a transmission element 221, which matches the connector 1221 in the collection assembly 1. When the housing 21 is connected to the flange 11, one of the transmission element 221 and the connector 1221 forms an installation channel 22a, while the other is provided with a limiting part 1221. The limiting part 1221 and the installation channel 22a cooperate with each other to ensure that the connection between the housing 21 and the flange 11 is both stable and accurate. Through the transmission of the transmission component 22, the drive component 23 can drive the negative pressure diaphragm 121 to move, thereby changing the pressure of the milk suction channel 11a and the milk storage chamber 13a to generate the required negative pressure.

[0034] This invention provides a highly efficient and convenient breast milk extraction device by employing a breast pump that combines a collection component 1 and a drive component 2. The collection component 1 includes a flange 11, a diaphragm assembly 12, and a milk storage container 13. The flange 11 conforms to the breast and forms a milk extraction channel 11a, while the milk storage container 13 collects milk. The milk extraction channel 11a and the milk storage chamber 13a are connected. The negative pressure diaphragm 121 of the diaphragm assembly 12 is sealed to the flange 11, and the connecting member 122 is connected to the transmission member 22 of the drive component 2 to ensure the generation of negative pressure. The drive component 2, through the cooperation of the housing 21, the transmission member 22, and the drive member 23, drives the negative pressure diaphragm 121, thereby generating suction and promoting milk extraction. When the housing 21 is connected to the flange 11, one of the transmission component 22 and the connecting component 122 forms an installation channel 22a, while the other is provided with a limiting part 1221. The limiting part 1221 accommodates and limits the connection within the installation channel 22a. The driving component 23 can drive the transmission component 22 to move the negative pressure diaphragm 121 away from or towards the flange 11, generating negative pressure. This design simplifies the assembly and disassembly process of the breast pump, allowing users to quickly and easily connect and disconnect the collection component 1 and the driving component 2, improving ease of use. Simultaneously, the design of the limiting part 1221 and the installation channel 22a ensures the stability of the connection, avoiding unstable negative pressure or leakage problems caused by improper connection, thereby improving the safety and reliability of the breast pump. By introducing the design of the limiting part 1221 and the installation channel 22a, this invention provides a clear positioning point, making the connection between the housing 21 and the flange 11 more accurate and stable.

[0035] In one embodiment of this utility model, please refer to Figure 6 and Figure 7 The transmission component 221 has a limiting groove 22b that communicates with the installation channel 22a. The connector 221 has a connecting part 1222 that connects the limiting part 1221 and the negative pressure diaphragm 121. When the drive component 1 is connected to the acquisition component 2, the limiting groove 22b allows the connecting part 1222 to pass through.

[0036] In this embodiment, the transmission component 221 has a limiting groove 22b, which is located on the side wall of the mounting channel 22a near the connector 1221. This design allows the connecting portion 1222 of the connector 122 to movably pass through the limiting groove 22b. The connector 122 connects the limiting portion 1221 and the negative pressure diaphragm 121, ensuring that the connecting portion 1222 can smoothly move through the limiting groove 22b. This design allows for flexible connection and locking between the connector 122 and the housing 21, while ensuring that the limiting portion 1221 can be stably engaged in the mounting channel 22a. This design provides a stable and easy-to-operate connection mechanism. Through the cooperation of the limiting groove 22b and the connecting portion 1222, it can be ensured that the connector 122 is connected to the negative pressure diaphragm 121 and the connector 1221 in the correct position, avoiding misalignment or missed connection problems. Meanwhile, the smaller cross-sectional area design allows the connecting part 1222 to move flexibly within the limiting groove 22b, facilitating installation and disassembly and improving ease of use.

[0037] In one embodiment of this utility model, please refer to Figure 4 The connector 122 extends along the central axis of the negative pressure diaphragm 121. When the drive assembly 1 is connected to the acquisition assembly 2, the extension direction of the connector 122 is set at an angle to the extension direction of the installation channel 22a.

[0038] In one embodiment, the connector 122 extends along the central axis of the negative pressure diaphragm 121. When the drive assembly 1 is connected to the collection assembly 2, the extension direction of the connector 122 is set at an angle to the extension direction of the installation channel 22a. This design allows the limiting part 1221 to be limited by friction when connected to the installation channel 22a, ensuring the reliability of the connection between the limiting part 1221 and the installation channel 22a, thereby enabling the negative pressure diaphragm 121 to reciprocate through the drive assembly 23. At the same time, this angled setting provides greater flexibility and adaptability, making the installation process more convenient and faster, especially in cases of limited space or special angles. Even if the angle between the housing 21 and the flange 11 is singular, the connection between the limiting part 1221 and the installation channel 22a can be achieved by setting the connector 122 at an angle to the installation channel 22a, thereby completing the assembly of the breast pump 100.

[0039] In one embodiment of this utility model, please refer to Figure 7 The limiting part 1221 has a first mating surface 1221a and a second mating surface 1221b. When the driving component 2 is connected to the acquisition component 1, the first mating surface 1221a and the second mating surface 1221b respectively mate with the two opposite walls of the mounting channel 22a.

[0040] In this embodiment, the limiting part 1221 is designed to have two mating surfaces: a first mating surface 1221a and a second mating surface 1221b. The first mating surface 1221a and the second mating surface 1221b can be planes or arc-shaped surfaces that mate with the inner wall of the mounting channel 22a. Specifically, the mounting channel 22a can be a cuboid channel along the assembly direction of the collecting component 1 and the driving component 2, and the first mating surface 1221a and the second mating surface 1221b can be planes or arc-shaped surfaces that mate with the upper and lower side walls of the cuboid channel; or, the mounting channel 22a can be a cylindrical channel along the assembly direction of the collecting component 1 and the driving component 2, and the first mating surface 1221a and the second mating surface 1221b can be arc-shaped surfaces that mate with the side walls of the cylindrical channel. It should be noted that in this embodiment, the first mating surface 1221a gradually expands from the negative pressure diaphragm 121 to the connector 122, while the second mating surface 1221b gradually shrinks in the same direction. The first mating surface 1221a and the second mating surface 1221b respectively mate with the two opposite walls of the mounting channel 22a. This design places the first mating surface 1221a between the second mating surface 1221b and the connecting part 1222, forming a transition structure. This structure allows for smoother movement of the connector 122, while providing good positioning and limiting functions, ensuring a tighter connection between the connector 122 and the transmission component 22. As the first mating surface 1221a gradually enlarges and the second mating surface 1221b gradually shrinks, this gradient design makes the connector 122 easier to assemble, reducing assembly difficulty and time.

[0041] In one embodiment of this utility model, please refer to Figure 4 The first mating surface 1221a and the second mating surface 1221a are inclined toward each other along the insertion direction of the limiting part 1221 and the mounting channel 22a.

[0042] In one embodiment, when the housing 21 is connected to the flange 11, the first mating surface 1221a and the second mating surface 1221a are inclined towards each other along the insertion direction of the limiting part 1221 and the mounting channel 22a. This contraction structure allows the limiting part 1221 to better insert into the mounting channel 22a, making the connection between the transmission member 221 and the connecting member 1221 more stable, thereby ensuring the stability and reliability of the connection. This structural design allows for precise positioning between the connecting member 122 and the housing 21, while providing a good limiting function to ensure a stable connection between the connecting member 122 and the transmission member 22. The abutment between the first mating surface 1221a and the inner wall of the mounting channel 22a ensures stability during the connection process, prevents the transmission member 22 from falling off the connecting member 122, and improves the efficiency of the breast pump 100. Due to the mating of the first mating surface 1221a and the inner wall of the mounting channel 22a, adjustments during assembly can be reduced, making the connecting member 122 easier to assemble, reducing assembly difficulty and time.

[0043] In one embodiment of this utility model, please refer to Figures 3 to 5 When the end of the driving member 23 that is away from the transmission member 22 moves, the other end of the driving member 23, supported by the housing 21, drives the transmission member 22 to move along the extension direction of the transmission member 22.

[0044] In this embodiment, the drive component 23 is designed as a three-section structure. One end is fixedly or detachably connected to the transmission component 22 for transmitting power. The middle section is connected to the end of the housing 21 away from the flange 11 via a rotating connection structure (such as a bearing or hinge), allowing the drive component 23 to rotate around this point. The other end is designed to be away from the housing 21 to generate sufficient torque. When the drive component 23 rotates relative to the housing 21, its connection with the transmission component 22 drives the transmission component 22 to move, causing the transmission component 22 to reciprocate along its extension direction. This controls the distance between the negative pressure diaphragm 121 and the flange 11, thereby generating and regulating the negative pressure in the milk suction channel 11a and the milk storage chamber 13a. By adjusting the position of the negative pressure diaphragm 121 through the rotation of the drive component 23, the negative pressure level in the milk suction channel 11a and the milk storage chamber 13a can be precisely controlled to adapt to the physiological needs of different mothers, improving milk suction efficiency and comfort. Users can adjust the negative pressure with a simple rotation operation, without complicated settings or additional tools, making the breast pump 100 easier and faster to use. The rotating connection design of the drive component 23 makes the entire breast pump 100 more compact, reducing space occupation and making it easier to carry and store.

[0045] In one embodiment of this utility model, please refer to Figures 3 to 5One of the driving component 23 and the housing 21 is provided with a rotating hole 21a, and the other is provided with a rotating shaft 231. The rotating shaft 231 is rotatably provided in the rotating hole 21a; the driving component 231 is driven by manual movement.

[0046] In one embodiment, to achieve a rotatable connection between the drive member 23 and the housing 21, one component (drive member 23 or housing 21) has a rotation hole 21a, while the other component has a protruding rotation shaft 231. The rotation shaft 231 is designed to be rotatably disposed within the rotation hole 21a. This configuration allows the drive member 23 to rotate around the rotation shaft 231, thereby driving the transmission member 22 and controlling the position of the negative pressure diaphragm 121 to adjust the negative pressure in the milk suction channel 11a and the milk storage chamber 13a. The user can manually drive the drive member 23 to perform the milk suction action, which is convenient and quick. By providing the rotation hole 21a and the rotation shaft 231, the mechanical structure of the breast pump 100 is simplified, the number of parts is reduced, and the manufacturing cost is lowered. The cooperation between the rotation hole 21a and the rotation shaft 231 provides a stable rotatable connection, ensuring the stability of the drive member 23 during rotation and reducing the problem of inaccurate negative pressure control caused by unstable connection. The design of the rotating shaft 231 and the rotating hole 21a reduces mechanical wear because the contact area between them is small, and the rotating shaft 231 can rotate freely in the hole, thereby extending the service life of the breast pump 100.

[0047] In one embodiment of this utility model, please refer to Figure 5 The drive assembly 2 also includes a reset elastic element 24, which is elastically connected to the drive assembly 23 and the housing 21 respectively.

[0048] In this embodiment, the drive assembly 2 further includes a reset elastic element 24. Specifically, the reset elastic element 24 can be a torsion spring, a spring, or elastic rubber, etc., and its two ends are elastically connected to the drive component 23 and the housing 21, respectively. The reset elastic element 24 enables the drive component 23 to automatically reset after displacement during operation. For example, when the drive component 23 is displaced due to the movement of the negative pressure diaphragm 121, the reset elastic element 24 can provide the necessary restoring force to restore the drive component 23 to its initial position. The reset elastic element 24 provides an automatic reset function, which means that after the negative pressure diaphragm 121 moves, the drive component 23 can automatically return to its original position, reducing the need for manual adjustment and improving ease of use.

[0049] In one embodiment of this utility model, please refer to Figure 5 The drive assembly 2 includes two drive components 23, which are respectively connected to opposite sides of the transmission component 22.

[0050] In one embodiment, the drive assembly 2 is specifically provided with two drive members 23, which are symmetrically arranged on opposite sides of the transmission member 22. Each drive member 23 is connected to one end of the transmission member 22, so that the two drive members 23 can work together or independently to drive the transmission member 22 to perform corresponding movements. This layout allows the negative pressure diaphragm 121 to be subjected to balanced forces on both sides, thereby achieving more stable and uniform negative pressure control. In practical applications, this design can be implemented by gears, chains, or other mechanical connections to ensure that the two drive members 23 can drive the transmission member 22 synchronously or on demand. The two drive members 23 located on opposite sides of the transmission member 22 can provide balanced forces, avoiding the offset or damage of the negative pressure diaphragm 121 due to torque imbalance. The symmetrical drive layout improves the stability of the entire breast pump 100 during operation and reduces vibration or noise caused by force imbalance. If one drive component 23 fails, the other drive component 23 can continue to work, or the two drive components 23 can be designed to be backups for each other, thereby improving the reliability and durability of the breast pump 100.

[0051] In one embodiment of this utility model, please refer to Figure 7 The negative pressure diaphragm 121 and the connector 122 are integrally formed.

[0052] In this embodiment, the negative pressure diaphragm 121 and the connector 122 adopt a one-piece molded structure. During the manufacturing process, the negative pressure diaphragm 121 and the connector 122 are produced as a single unit. This design can be achieved through injection molding technology, where the negative pressure diaphragm 121 and the connector 122 share a continuous material flow, thereby forming a seamless structure. Such a one-piece molded structure ensures a tight fit between the negative pressure diaphragm 121 and the connector 122, reducing assembly steps and improving production efficiency. The one-piece molded structure reduces gaps at the joints, thereby improving the sealing performance of the breast pump 100 and ensuring that the negative pressure diaphragm 121 does not leak during milk expression. Since the negative pressure diaphragm 121 and the connector 122 are one-piece molded, this reduces additional assembly steps, lowers production costs, and reduces the possibility of assembly errors. A one-piece molded structure is generally more durable than a structure composed of multiple parts because it reduces potential weaknesses and points of failure.

[0053] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A breast pump, characterized in that include: A collection component (1) is provided, comprising a flange (11), a diaphragm assembly (12), and a milk storage container (13). The flange (11) includes a fitting part for fitting the breast and a milk suction channel (11a). The milk storage container (13) is connected to the milk suction channel (11a). The diaphragm assembly (12) includes a negative pressure diaphragm (121) and a connector (122), the negative pressure diaphragm (121) and the connector (122) being connected; and A drive assembly (2) is detachably connected to the acquisition assembly (1). The drive assembly (2) includes a housing (21), a transmission component (22), and a drive component (23). The drive component (23) and the transmission component (22) are mounted on the housing (21). One of the transmission component (22) and the connector (122) forms an installation channel (22a), and the other is provided with a limiting part (1221). When the drive component (2) is connected to the acquisition component (1), the limiting part (1221) cooperates with the installation channel (22a). The drive component (23) can drive the transmission component (22) to move, thereby causing the negative pressure diaphragm (121) to deform, so as to generate negative pressure in the milk suction channel (11a).

2. The breast pump of claim 1, wherein, The transmission component (22) has a limiting groove (22b) that communicates with the installation channel (22a). The connector (122) has a connecting part (1222) that connects the limiting part (1221) and the negative pressure diaphragm (121). When the drive assembly (2) is connected to the acquisition assembly (1), the limiting groove (22b) allows the connecting part (1222) to pass through.

3. The breast pump of claim 1, wherein, The connector (122) extends along the central axis of the negative pressure diaphragm (121). When the drive assembly (2) is connected to the acquisition assembly (1), the extension direction of the connector (122) is set at an angle to the extension direction of the installation channel (22a).

4. The breast pump of claim 2, wherein, The limiting part (1221) has a first mating surface (1221a) and a second mating surface (1221b) that are opposite to each other. When the driving component (2) is connected to the acquisition component (1), the first mating surface (1221a) and the second mating surface (1221b) respectively mate with the two opposite walls of the mounting channel (22a).

5. The breast pump of claim 4, wherein, The first mating surface (1221a) and the second mating surface (1221b) are inclined toward each other along the insertion direction of the limiting portion (1221) and the mounting channel (22a).

6. The breast pump of any one of claims 1 to 5, wherein, When the end of the drive member (23) away from the transmission member (22) moves, the other end of the drive member (23), supported by the housing (21), drives the transmission member (22) to move along the extension direction of the transmission member (22).

7. The breast pump of claim 6, wherein, One of the drive member (23) and the housing (21) is provided with a rotating hole (21a), and the other is provided with a rotating shaft (231). The rotating shaft (231) is rotatably provided in the rotating hole (21a). The drive unit (23) is manually driven.

8. The breast pump of claim 7, wherein, The drive assembly (2) further includes a reset elastic element (24), which is elastically connected to the drive element (23) and the housing (21) respectively.

9. The breast pump of claim 8, wherein, The drive assembly (2) includes two drive members (23), which are respectively connected to opposite sides of the transmission member (22).

10. The breast pump of claim 1, wherein, The negative pressure diaphragm (121) and the connector (122) are integrally formed.

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