Flow guide assembly of breast pump

Abstract

The breast pump flow guide assembly comprises a breast cover and a flow guide valve plate, a flow guide seat is arranged on the breast cover, a milk outlet used for discharging milk is formed in the flow guide seat, the upper end of the flow guide valve plate is connected to the flow guide seat, and the flow guide valve plate is used for opening and closing the milk outlet. The flow guide valve plate is elastic and can be attached to the lower portion of the milk outlet after being bent, and a connecting structure capable of enabling the flow guide valve plate to be kept in a bent state is arranged on the flow guide base. The sealing structure has the advantages of being simple in structure, easy to manufacture and assemble and good in sealing performance.

Description

Technical Field

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

[0002] A breast pump is a widely used device for breastfeeding, designed to provide nutrition to infants by extracting breast milk. The basic structure of a breast pump typically includes a suction section, a milk storage section, and a control system. Among these components, the one-way valve is a key part, primarily used to control the flow direction of breast milk, ensuring that it does not flow backward due to gravity or other factors during the extraction process.

[0003] In traditional breast pump designs, the one-way valve typically uses a duckbill-shaped valve. This type of one-way valve is prone to deformation during use, has a short lifespan (usually only two to three months), and is structurally complex, increasing manufacturing difficulty and cost.

[0004] Furthermore, existing valve-type one-way valves require separate assembly, which is quite cumbersome. During use, the valve plate must be held in place by the bottle neck to close the milk outlet. However, this structure does not fit tightly and has poor sealing.

[0005] Therefore, it is necessary to further improve and innovate the one-way valve in the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a breast pump guide assembly that is simple in structure, easy to manufacture and assemble, and has good sealing performance.

[0007] This utility model is achieved through the following technical solution:

[0008] To solve the above-mentioned technical problems, this utility model provides a breast pump flow guiding component, including a breast shield and a flow guiding valve plate. The breast shield is provided with a flow guiding seat, and the flow guiding seat is provided with a milk outlet for discharging milk. The upper end of the flow guiding valve plate is connected to the flow guiding seat. The flow guiding valve plate is used to open and close the milk outlet. The flow guiding valve plate is elastic and can be bent to fit against the lower part of the milk outlet. The flow guiding seat is provided with a connecting structure that can keep the flow guiding valve plate in a bent state.

[0009] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a breast pump flow guiding assembly, wherein the connecting structure includes a limiting plate provided on the flow guiding seat, and the limiting plate is provided with a limiting hole, and the free end of the flow guiding valve plate passes through the limiting hole.

[0010] To further address the technical problems to be solved by this utility model, a breast pump flow guiding assembly is provided in which a hollow hole is provided in the middle of the flow guiding valve plate, and a valve plate is provided in the hollow hole that can close the milk outlet after the flow guiding valve plate is bent. One side of the valve plate is connected to the flow guiding valve plate.

[0011] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a breast pump flow guide assembly, wherein the connecting structure includes a limiting post provided on the flow guide seat, and the flow guide valve plate is provided with a through hole that can engage with the limiting post.

[0012] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a breast pump flow guide assembly, wherein the connecting structure includes a card plate provided on the flow guide seat, the lower end of the card plate is provided with two opposing elastic buckles, and the flow guide valve plate can be stuck between the two elastic buckles after being bent.

[0013] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a breast pump flow guide assembly, wherein the connection structure includes a first hook provided on the flow guide seat, and the flow guide valve plate is provided with a second hook that can engage with the first hook.

[0014] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a breast pump flow guide assembly, wherein the connection structure includes a card hole provided on the flow guide seat, and the flow guide valve plate is provided with a card post that can be inserted into the card hole and press against it.

[0015] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a breast pump flow guide assembly, wherein the flow guide valve plate is provided with a bendable section near its upper end, and the bendable section is provided with a notch or bend.

[0016] In order to further solve the technical problem to be solved by this utility model, the lower end face of the milk outlet of the present utility model is an inclined surface, and gradually slopes downward from the side close to the flow guide valve plate to the side away from the flow guide valve plate.

[0017] In order to further solve the technical problems to be solved by this utility model, the breast shield, the guide seat and the guide valve plate are integrally formed in the breast pump guide assembly provided by this utility model.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention achieves locking of the breast pump's flow guide valve plate in its bent state through a connecting structure, rather than relying on the bottle neck to hold the valve plate in place. This results in better sealing performance and a longer lifespan. More importantly, the design of the flow guide valve plate eliminates the need for initial bending during manufacturing, significantly simplifying the process, especially when using injection molding, and effectively improving production efficiency. During assembly, the flow guide valve plate can be easily bent and fitted onto the milk outlet to achieve closure. Attached Figure Description

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a three-dimensional structural diagram of Embodiment 1;

[0022] Figure 2 This is a cross-sectional schematic diagram of Embodiment 1;

[0023] Figure 3 This is a cross-sectional view of the flow guide valve plate after it has been bent according to Embodiment 1;

[0024] Figure 4 This is a cross-sectional schematic diagram of Example 7;

[0025] Figure 5 This is a cross-sectional schematic diagram of Example 8;

[0026] Figure 6 This is a three-dimensional structural schematic diagram of Embodiment 2;

[0027] Figure 7 This is a cross-sectional schematic diagram of Embodiment 3;

[0028] Figure 8 This is a three-dimensional structural schematic diagram of Example 4;

[0029] Figure 9 This is a cross-sectional schematic diagram of Example 5;

[0030] Figure 10 This is a cross-sectional schematic diagram of Example 6. Detailed Implementation

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, the use of terms such as "first" and "second" in this utility model is 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0034] Implementation 1:

[0035] like Figures 1 to 10 The breast pump guide assembly shown includes a breast shield 1 and a guide valve plate 12. The breast shield 1 is provided with a guide seat 11, and the guide seat 11 is provided with a milk outlet 111 for discharging milk. The upper end of the guide valve plate 12 is connected to the guide seat 11. The guide valve plate 12 is used to open and close the milk outlet 111. The guide valve plate 12 is elastic and can be bent to fit against the lower part of the milk outlet 111. The guide seat 11 is provided with a connecting structure 2 that can keep the guide valve plate 12 in a bent state.

[0036] The bra 1 is preferably flared to fit the shape of the breast. A flow guide seat 11 is provided at the lower part of the bra 1. The flow guide seat 11 provides a base for the valve body and effectively guides the milk outflow.

[0037] The flow guide seat 11 is equipped with a milk outlet 111 for discharging milk. To ensure smooth milk flow and prevent backflow, the flow guide seat 11 also has a flow guide valve plate 12 for opening and closing the milk outlet 111. The flow guide valve plate 12 is flexible and bendable, and is typically made of plastic or silicone. The upper end of the flow guide valve plate 12 is fixed to the flow guide seat 11, while the lower end of the flow guide valve plate 12 can be bent. After bending, the flow guide valve plate 12 can fit against the lower part of the milk outlet 111, effectively preventing milk from flowing back from the milk outlet.

[0038] A connecting structure 2 is provided between the flow guide seat 11 and the flow guide valve plate 12. The design of this connecting structure is intended to lock the bending state of the flow guide valve plate 12, further enhancing the sealing of the valve plate and ensuring smooth milk flow without leakage.

[0039] During manufacturing, the design of the flow guide plate 12 eliminates the need for bending in the initial stage, a feature that greatly simplifies the manufacturing process, especially when using injection molding, effectively improving production efficiency (the flow guide plate 12 is vertical during manufacturing, making it easy to demold). During assembly, the flow guide plate 12 can be bent and fitted onto the milk outlet 111 with a simple operation to close the milk outlet 111.

[0040] Furthermore, this invention achieves the locking of the bent state of the flow guide valve plate 12 through the connecting structure 2, rather than by having the bottle neck press against the valve plate, thus resulting in better sealing performance and a longer lifespan.

[0041] In addition, compared with the duckbill-type one-way valve, the flow guide valve plate 12 in the flow guide assembly of this utility model has a simple structure, a longer service life, and a smaller volume after bending, making the structure more compact and increasing the milk storage space.

[0042] Furthermore, the breast shield 1, the flow guide seat 11, and the flow guide valve plate 12 are designed as a single piece, preferably molded from silicone injection molding. This integrated design not only reduces the number of parts and lowers production costs, but also ensures the precision of the fit between the various parts, improving the stability and durability of the entire product. This innovative design makes the breast pump more convenient and efficient to use.

[0043] The specific structure of the connection structure 2 is illustrated below:

[0044] like Figure 1-3 The illustration shows a first embodiment of this utility model. In this embodiment, the connecting structure 2 includes a limiting plate 21 disposed on the flow guide seat 11. The limiting plate 21 has a limiting hole 211, through which the free end of the flow guide valve plate 12 can be connected. This design allows the flow guide valve plate 12 to be reliably locked in this bent state after bending, thereby effectively sealing the milk outlet 111 and preventing the backflow of milk.

[0045] In practical implementation, the position of the limiting plate 21 can be flexibly designed. It can be located between the guide valve plate 12 and the milk outlet 111, or it can be located on both sides of the milk outlet 111, separate from the guide valve plate 12. Such flexible design provides different usage methods and performance advantages.

[0046] Specifically, when the limiting plate 21 is positioned between the flow guide valve plate 12 and the milk outlet 111, the free end of the flow guide valve plate 12 passes through the limiting hole 211 and extends towards the milk outlet 111. This structural design allows the free end of the flow guide valve plate 12 to have greater room for movement, thereby improving the elasticity of the valve plate. During milk expression, this elasticity can better adapt to the dynamic changes in breast milk flow, ensuring that the milk outlet 111 can be opened and closed quickly and reliably during milk expression.

[0047] On the other hand, when the limiting plate 21 and the flow guide valve plate 12 are positioned on either side of the milk outlet 111, the middle part of the flow guide valve plate 12 will fit tightly against the milk outlet 111. This design ensures that both ends of the flow guide valve plate 12 are supported, effectively preventing deformation or sagging of the end of the flow guide valve plate 12 due to gravity during prolonged use. This design greatly improves the stability and durability of the flow guide valve plate 12, thereby extending the service life of the breast pump.

[0048] Preferably, for ease of bending, the flow guide valve plate 12 is provided with a bendable section near its upper end, and the bendable section is provided with a notch 12a (e.g., Figure 2 , Figure 3 Example 1 shown) or bending 12b (as shown) Figure 4 Example 7 shown.

[0049] Preferably, the limiting hole 211 has a chamfer on the side near the flow guide plate 12 to facilitate the insertion of the flow guide plate 12 and reduce wear.

[0050] Preferably, a gap can also be made at the connection between the upper end of the flow guide valve plate 12 and the flow guide seat 11 (e.g., Figure 5 The embodiment shown in Example 8) increases the elasticity of the flow guide plate 12, thereby facilitating the bending of the flow guide plate 12.

[0051] like Figure 6 The illustration shows a second embodiment of this utility model. The difference from the first embodiment is that, in this embodiment, the flow guide valve plate 12 has a perforated hole 124 in its center. This perforated hole 124 not only enhances the milk outlet area and efficiency but also provides space for the valve plate 125. The valve plate 125, positioned within the perforated hole 124, effectively closes the milk outlet 111 after the flow guide valve plate 12 is bent, increasing the flexibility of the flow guide valve plate 12. Specifically, the presence of the perforated hole 124 and the valve plate 125 allows for a greater range of deformation. The combination of the deformation of the flow guide valve plate 12 itself and the deformation of the valve plate 125 results in faster and more efficient milk flow. This design improves the smoothness of the breast pump during use, making the flow of breast milk more fluid.

[0052] In terms of specific construction, one side of the valve plate 125 is connected to the flow guide valve plate 12 (preferably integrally connected). This connection method ensures that the valve plate can move freely with the movement of the flow guide valve plate 12. When the flow guide valve plate 12 bends, the valve plate 125 will close the milk outlet 111, forming a sealed structure to prevent milk leakage and backflow. This design not only improves the sealing performance of the breast pump but also enhances the smoothness of the pumping process, ensuring that breast milk is extracted to the maximum extent with each pumping session.

[0053] Similarly, in this embodiment, the position of the limiting plate 21 also maintains a flexible design. The limiting plate 21 can be located between the guide valve plate 12 and the milk outlet 111, forming a direct limiting effect; it can also be positioned on both sides of the milk outlet 111, separate from the guide valve plate 12. Regardless of the configuration chosen, the limiting plate 21 can effectively constrain the bending state of the guide valve plate 12, ensuring the stability of the valve plate when the milk outlet 111 is closed.

[0054] like Figure 7 The illustration shown is a third embodiment of this utility model. The difference from the first embodiment is that in this embodiment, the connecting structure 2 includes a limiting post 22 disposed on the flow guide seat 11. Furthermore, the flow guide valve plate 12 is provided with a through hole 121 that can engage with the limiting post 22. The engaging engagement of the limiting post 22 and the through hole 121 locks the flow guide valve plate 12 in its bent state.

[0055] To further reinforce the connection between the limiting post 22 and the through hole 121, the top of the limiting post 22 is designed with a mushroom head structure. The shape of the mushroom head allows the limiting post 22 to have a better locking effect within the through hole 121, ensuring that it will not loosen or fall off during use.

[0056] Similarly, in this embodiment, the position of the limiting post 22 also maintains the feature of flexible design, that is, the limiting post 22 can be flexibly set between the guide valve plate 12 and the milk outlet 111, or it can be arranged on both sides of the milk outlet 111, separate from the guide valve plate 12.

[0057] Preferably, both sides of the through hole 121 are chamfered to facilitate the smooth insertion of the limiting post 22 or the mushroom head.

[0058] like Figure 8 The illustration shows Embodiment 4 of this utility model. The difference from Embodiment 1 is that in this embodiment, the connecting structure 2 includes a retaining plate 23 disposed on the flow guide seat 11. The lower end of the retaining plate 23 is designed with two opposing elastic clips 231. This design allows the flow guide valve plate 12 to be easily secured between these two elastic clips 231 after bending, thereby achieving a stable connection. The elastic clips 231 not only enhance the bonding force between the flow guide valve plate 12 and the retaining plate 23, but also ensure that the flow guide valve plate 12 will not accidentally fall off during use. Preferably, the flow guide valve plate 12 has a notch at a corresponding position that can cooperate with the elastic clips 231.

[0059] In this embodiment, the position of the clamping plate 23 maintains a flexible design. Specifically, the clamping plate 23 can be flexibly positioned between the flow guide valve plate 12 and the milk outlet 111, or it can be positioned on both sides of the milk outlet 111, separate from the flow guide valve plate 12.

[0060] like Figure 9 The present invention is shown in Embodiment 5. The difference from Embodiment 1 is that in this embodiment, the connecting structure 2 includes a first hook 24 provided on the flow guide seat 11, and the flow guide valve plate 12 is provided with a second hook 122 that can engage with the first hook 24.

[0061] Similarly, in this embodiment, the position of the first hook 24 also maintains the feature of flexible design, that is, the first hook 24 can be flexibly set between the guide valve plate 12 and the milk outlet 111, or it can be arranged on both sides of the milk outlet 111, separate from the guide valve plate 12.

[0062] like Figure 8 The present invention is shown in Embodiment Six. The difference from Embodiment One is that in this embodiment, the connecting structure 2 includes a card hole 25 provided on the flow guide seat 11, and the flow guide valve plate 12 is provided with a card post 123 that can be inserted into the card hole 25 and press against it.

[0063] Similarly, in this embodiment, the position of the locking hole 25 also maintains the feature of flexible design, that is, the locking hole 25 can be flexibly set between the flow guide valve plate 12 and the milk outlet 111, or it can be arranged on both sides of the milk outlet 111, separate from the flow guide valve plate 12.

[0064] Other optimized structures are as follows:

[0065] Furthermore, the lower end face of the milk outlet 111 is designed as an inclined surface 1111, and its inclination direction is gradually downward from the side closer to the guide valve plate 12 to the side farther away from the guide valve plate 12. The purpose of this inclined design is to optimize the contact effect between the guide valve plate 12 and the milk outlet 111, ensuring that the two can fit more tightly when combined.

[0066] Specifically, when the flow guide valve plate 12 is bent, its shape better matches the inclined surface 1111 of the milk outlet 111, forming a more sealed connection. This tight fit not only effectively prevents milk leakage but also improves fluid efficiency during milk expression, ensuring that milk can be smoothly and quickly discharged through the milk outlet 111. This design physically reduces resistance caused by loose seams, thereby improving the flow performance of the milk.

[0067] Furthermore, the inclined surface 1111 can reduce wear on the flow guide valve plate 12 during opening and closing to some extent. Because the angle between the two surfaces is more closely aligned, the reduced friction extends the service life of the flow guide valve plate 12.

[0068] Furthermore, the back of the bra 1 is provided with a pleated elastic deformation part 13. The pleated structure of the elastic deformation part 13 not only increases its deformation capacity, but also generates greater negative pressure.

[0069] It is worth noting that in this embodiment, the elastic deformation part 13 can be disposed either at the rear end of the bra 1 or on the side of the bra 1. When the elastic deformation part 13 is disposed on the side of the bra 1, the area that the elastic deformation part 13 can be disposed on is larger, and the traditional cumbersome suction bowl structure at the rear end of the bra 1 is eliminated, making the breast pump structure simpler, more efficient, and smaller in size.

[0070] A housing 3 (usually rigid) is provided over the outside of the elastic deformation part 13. The housing 3 is tightly connected to the elastic deformation part 13, and the two form a cavity 31. The function of this cavity 31 is to create a negative pressure by suction, which attracts the elastic deformation part 13 to deform, thereby creating a negative pressure inside the bra 1 to achieve the effect of milk suction.

[0071] To achieve this purpose, a negative pressure port 32 is provided on the housing 3. This port can be connected to an external negative pressure device (such as an air pump), and the user can control the pressure change inside the housing 3 by adjusting the intensity of the negative pressure, thereby achieving a better milk expression effect.

[0072] The bra 1 is usually called a three-way connector, which includes a milk outlet 111, a negative pressure interface 32, and an opening that fits the breast.

[0073] It is worth mentioning that the shell 3 preferably adopts a one-piece molding design. This one-piece molding structure not only improves the overall strength and stability of the shell 3, but also reduces manufacturing costs.

[0074] Furthermore, the guide seat 11 is designed with a bottle interface 14 surrounding the milk outlet 111. The function of the bottle interface 14 is to provide a stable connection position for connecting the bottle, ensuring that the milk can flow smoothly into the bottle during the milking process. Typically, the bottle interface 14 adopts a threaded design, which not only provides a good sealing effect, but also makes the installation and removal of the bottle easier; the user only needs to rotate it gently to complete the connection.

[0075] This invention achieves locking of the breast pump's flow guide valve plate in its bent state through a connecting structure, rather than relying on the bottle neck to hold the valve plate in place. This results in better sealing performance and a longer lifespan. More importantly, the design of the flow guide valve plate eliminates the need for initial bending during manufacturing, significantly simplifying the process, especially when using injection molding, and effectively improving production efficiency. During assembly, the flow guide valve plate can be easily bent and fitted onto the milk outlet to achieve closure.

[0076] The breast shield, flow guide seat, and flow valve plate are preferably designed as a single piece. This integrated design not only reduces the number of parts and lowers production costs, but also ensures the precision of the fit between each part, improving the stability and durability of the entire product. This innovative design makes the breast pump more convenient and efficient to use.

[0077] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A breast pump flow guiding component, characterized in that: The device includes a bra (1) and a flow guide plate (12). The bra (1) is provided with a flow guide seat (11) and a milk outlet (111) for discharging milk. The upper end of the flow guide plate (12) is connected to the flow guide seat (11) and the flow guide plate (12) is used to open and close the milk outlet (111). The flow guide plate (12) is elastic and can be bent to fit against the lower part of the milk outlet (111). The flow guide seat (11) is provided with a connecting structure (2) that can keep the flow guide plate (12) in a bent state.

2. The breast pump flow guiding component according to claim 1, characterized in that: The connection structure (2) includes a limiting plate (21) provided on the flow guide seat (11), and the limiting plate (21) is provided with a limiting hole (211), and the free end of the flow guide valve plate (12) passes through the limiting hole (211).

3. A breast pump flow guiding component according to claim 2, characterized in that: The flow guide valve plate (12) has a hollow hole (124) in the middle, and a valve plate (125) is provided in the hollow hole (124) that can close the milk outlet (111) after the flow guide valve plate (12) is bent. One side of the valve plate (125) is connected to the flow guide valve plate (12).

4. A breast pump flow guiding assembly according to claim 1, characterized in that: The connection structure (2) includes a limiting post (22) provided on the flow guide seat (11), and the flow guide valve plate (12) is provided with a through hole (121) that can engage with the limiting post (22).

5. A breast pump flow guiding assembly according to claim 1, characterized in that: The connection structure (2) includes a card plate (23) on the flow guide seat (11). The lower end of the card plate (23) is provided with two opposing elastic buckles (231), and the flow guide valve plate (12) can be bent and locked between the two elastic buckles (231).

6. A breast pump flow guiding assembly according to claim 1, characterized in that: The connection structure (2) includes a first hook (24) provided on the flow guide seat (11), and the flow guide valve plate (12) is provided with a second hook (122) that can engage with the first hook (24).

7. A breast pump flow guiding assembly according to claim 1, characterized in that: The connection structure (2) includes a card hole (25) on the flow guide seat (11), and the flow guide valve plate (12) is provided with a card post (123) that can be inserted into the card hole (25) and press-fitted with it.

8. A breast pump flow guiding component according to any one of claims 1-7, characterized in that: The flow guide valve plate (12) is provided with a bendable section near its upper end, and the bendable section is provided with a notch (12a) or a bend (12b).

9. A breast pump flow guiding component according to any one of claims 1-7, characterized in that: The lower end face of the milk outlet (111) is an inclined surface (1111), and it gradually slopes downward from the side near the guide valve plate (12) to the side away from the guide valve plate (12).

10. A breast pump flow guiding assembly according to any one of claims 1-7, characterized in that: The bra (1), the flow guide seat (11), and the flow guide valve plate (12) are integrally formed.

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