Negative pressure generating assembly and breast pump

Abstract

The invention provides a negative pressure generating assembly and a breast pump, and relates to the technical field of mother and baby products. The negative pressure generation assembly comprises a buckling piece, a flexible piece and a communication valve. The flexible part is connected to the buckling part, the flexible part comprises a protruding part which is arranged in a protruding mode in the direction away from the buckling part, a cavity is defined between the protruding part and the buckling part, and the communicating valve is connected to the flexible part. According to the scheme, the flexible part is connected with the buckling part, the flexible part is provided with the protruding part, the cavity is formed between the protruding part and the buckling part, the protruding part does fluctuating motion by changing the air pressure of the cavity, then the air pressure of the first side of the negative pressure generating assembly is changed, and the breast is promoted to secrete milk. After the breast secretes milk, the milk can flow to the container through the communicating valve, so that the negative pressure generating assembly can be arranged between the container and the connecting piece of the breast pump, the width size of the upper portion of the breast pump is reduced, holding is convenient, and the user experience is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of maternal and infant products, and in particular to a negative pressure generating assembly and a breast pump. Background Art

[0002] The negative pressure generating component is usually used in a breast pump, which can be connected to an air pump so that it deforms under the action of the air pump, thereby generating negative pressure in the breast pump that can suck out milk. Summary of the Invention

[0003] The present disclosure provides a negative pressure generating assembly and a breast pump.

[0004] According to one aspect of the present disclosure, a negative pressure generating assembly is provided for use in a breast pump. The negative pressure generating assembly includes a fastening member, a flexible member, and a connecting valve.

[0005] The flexible member is connected to the fastening member, and includes a protrusion that protrudes in a direction away from the fastening member. A cavity is enclosed between the protrusion and the fastening member, and the cavity is used to communicate with an air pressure source. Under the action of the air pressure source, the protrusion moves up and down relative to the fastening member to suck milk into the space on the first side of the negative pressure generating component in the breast pump;

[0006] The communication valve is connected to the flexible member, and is used to allow milk to flow from the first side of the negative pressure generating component to the second side of the negative pressure generating component;

[0007] The first side is a side of the protruding portion facing away from the fastening member, and the first side and the second side are two opposite sides of the negative pressure generating component.

[0008] Another aspect of the present disclosure provides a breast pump, comprising a connector, a container, and the negative pressure generating assembly of any of the above embodiments; one end of the connector is connected to the container, and the other end of the connector has a milk inlet; a fastener in the negative pressure generating assembly abuts against the container, and a flexible member in the negative pressure generating assembly abuts against the connector; the negative pressure generating assembly is used to generate a negative pressure in the connector for sucking milk through the undulating movement of a protrusion in the flexible member, and a connecting valve in the flexible member is used to allow milk to flow from the connector into the container.

[0009] The negative pressure generating assembly and breast pump provided by the disclosed embodiments utilize a flexible member connected to a fastening member. The flexible member has a protrusion, and a cavity is formed between the protrusion and the fastening member. By varying the air pressure in the cavity, the protrusion undergoes an undulating motion, thereby varying the air pressure on the first side of the negative pressure generating assembly, i.e., the air pressure within the breast pump's connector, thereby promoting milk secretion. After the breast secretes milk, the milk flows through a connecting valve into a container, allowing the negative pressure generating assembly to be positioned between the container and the connector. This reduces the width of the upper portion of the breast pump, making it easier to grip and improving the user experience.

[0010] It should be understood that the contents described in the Summary of the Invention section are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0012] Figure 1 is a schematic structural diagram of a flexible member according to an embodiment of the present disclosure;

[0013] Figure 2 is a schematic structural diagram of a flexible member according to an embodiment of the present disclosure;

[0014] Figure 3 is a schematic structural diagram of a flexible member according to an embodiment of the present disclosure;

[0015] Figure 4 is a schematic structural diagram of a fastening member according to an embodiment of the present disclosure;

[0016] Figure 5 is a schematic structural diagram of a negative pressure generating assembly according to an embodiment of the present disclosure;

[0017] Figure 6 is a schematic structural diagram of a negative pressure generating assembly according to an embodiment of the present disclosure;

[0018] Figure 7 Schematic diagram of the structure of a breast pump according to an embodiment of the present disclosure.

[0019] Description of reference numerals:

[0020] 1: Fasteners;

[0021] 11: Ontology;

[0022] 111: communication groove;

[0023] 12: first cylindrical body;

[0024] 121: connecting part;

[0025] 13: through hole;

[0026] 14: second cylindrical body;

[0027] 15: connecting part;

[0028] 2: Flexible parts:

[0029] 21: protrusion;

[0030] 22: cavity;

[0031] 23: matrix;

[0032] 231: first surface;

[0033] 24: groove;

[0034] 25: Coordination part;

[0035] 3: connecting valve;

[0036] 4: Connectors;

[0037] 5: Adsorption parts;

[0038] 6: Container. DETAILED DESCRIPTION

[0039] The following description of exemplary embodiments of the present disclosure is made in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding. These details should be considered as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0040] In the related art, a breast pump typically includes a three-way connector, a bell housing, a feeding bottle, and a membrane assembly. The three-way connector has three ports: the first port connects to the bell housing, the second port connects to the feeding bottle, and the third port houses the membrane assembly and is connected to an air pump. The bell housing is positioned outside the breast, and the membrane assembly is used to change the air pressure within the three-way connector. The bell housing and the membrane assembly are respectively positioned on the left and right sides of the upper portion of the three-way connector, and the feeding bottle is positioned at the lower end of the three-way connector.

[0041] However, in the related art, when using a breast pump, the user holds the three-way shell and presses the speaker cover onto the breast. In order to make the speaker cover fit tightly to the breast, the user usually needs to hold the upper part of the three-way connector (i.e., the upper part of the breast pump). The upper part of the three-way connector is also provided with a membrane assembly, which is large in size, inconvenient to hold, and the user experience is poor.

[0042] To address the aforementioned technical issues, the present disclosure provides a negative pressure generating assembly and a breast pump, the negative pressure generating assembly comprising a fastening member, a flexible member, and a connecting valve. The flexible member is connected to the fastening member, comprising a protrusion extending in a direction away from the fastening member, a cavity enclosed between the protrusion and the fastening member, the cavity being connected to an air pressure source. Under the action of the air pressure source, the protrusion moves in an undulating manner relative to the fastening member to draw milk into a space in the breast pump located on a first side of the negative pressure generating assembly. The connecting valve is connected to the flexible member and is configured to allow milk to flow from the first side of the negative pressure generating assembly to the second side of the negative pressure generating assembly. The first side is the side of the protrusion facing away from the fastening member, and the first and second sides are opposite sides of the negative pressure generating assembly. The negative pressure generating assembly provided in this embodiment can be arranged between the container and the connecting piece of the breast pump. The connecting piece is used to connect the horn cover and the container. Milk can enter the first side of the negative pressure generating assembly through the horn cover and the connecting piece, and flow into the second side of the negative pressure generating assembly through the connecting valve in the negative pressure generating assembly. This can reduce the size of the breast pump near the horn cover end, making it easier for users to hold and carry it. It can also be adapted to ordinary underwear on the market to facilitate users to put the breast pump into the underwear during milk pumping, thereby improving the user experience.

[0043] The present disclosure provides a negative pressure generating component, such as Figures 1 to 7 As shown, used in a breast pump, the negative pressure generating component includes a fastening part 1, a flexible part 2 and a connecting valve 3.

[0044] The flexible member 2 is connected to the fastening member 1. The flexible member 2 includes a protrusion 21 that protrudes in a direction away from the fastening member 1. A cavity 22 is enclosed between the protrusion 21 and the fastening member 1. The cavity 22 is used to communicate with the air pressure source. Under the action of the air pressure source, the protrusion 21 moves up and down relative to the fastening member 1 to suck milk into the space on the first side of the negative pressure generating component in the breast pump.

[0045] The connecting valve 3 is connected to the flexible member 2, and is used to allow milk to flow from the first side of the negative pressure generating component to the second side of the negative pressure generating component; wherein the first side is the side of the protrusion 21 facing away from the fastening member 1, and the first side and the second side are the opposite sides of the negative pressure component.

[0046] According to the embodiments of the present disclosure, it should be noted that:

[0047] like Figure 6 、 Figure 7As shown, the first side of the negative pressure generating assembly is the upper side of the negative pressure generating assembly, and the second side of the negative pressure generating assembly is the lower side of the negative pressure generating assembly. When the negative pressure generating assembly is connected to a breast pump, the first side can be the side where the connector 4 is located, and the second side can be the side where the container 6 is located. The connector 4 can be understood as the housing of the breast pump. When using the breast pump, the user typically grasps the connector 4 to place the breast pump over the breast. The connector 4 can be understood as including two open ends, one of which is used to connect to the container 6, and the other open end is used to cover the breast or to abut against the breast through other structures such as the adsorption member 5. It should be noted that the container 6 is a part of the breast pump used to store the sucked milk.

[0048] The positioning of the fastener 1 and flexible member 2 in the breast pump can be understood as follows: the fastener 1 is located at the end of the negative pressure generating assembly closest to the container 6, and the flexible member 2 is located at the end of the negative pressure generating assembly closest to the breast. When the flexible member 2 deforms toward the fastener 1, the pressure in the space between the negative pressure generating assembly and the breast is reduced, thereby creating a negative pressure within the space. This simulates suction similar to that in a baby's mouth, allowing milk to be extracted from the breast.

[0049] The connecting valve 3 can be understood as a structure connecting the first and second sides of the negative pressure generating assembly, i.e., a valve structure connecting the connector 4 and the container 6. Milk can flow from the first side of the negative pressure generating assembly to the second side of the negative pressure generating assembly through the connecting valve 3. Milk can flow from the first side of the negative pressure generating assembly to the second side by gravity, or by a pressure difference between the first and second sides.

[0050] The connecting valve 3 can be opened by the gravity of the milk. When the gravity of the milk on the first side of the negative pressure generating assembly reaches the opening pressure of the connecting valve 3, the connecting valve 3 is in the open state, allowing the milk to flow to the second side of the negative pressure generating assembly. When the gravity of the milk on the first side of the negative pressure generating assembly does not reach the opening pressure of the connecting valve 3, the connecting valve 3 is in the closed state, or when the first side of the negative pressure generating assembly is in a negative pressure state, the connecting valve 3 is in the closed state. Specifically, the connecting valve 3 is a one-way valve structure, which can prevent the milk from flowing back to the first side of the negative pressure generating assembly.

[0051] In this embodiment, milk can flow from the first side of the negative pressure generating assembly through the connecting valve 3 into the second side of the negative pressure generating assembly. This means that the negative pressure generating assembly provided in this embodiment can be disposed between the container 6 and the connecting member 4 of the breast pump. Specifically, the fastening member 1 can be disposed close to the container 6, while the flexible member 2 is disposed away from the container 6. The cavity 22 between the fastening member 1 and the flexible member 2 is in communication with the air pressure source.

[0052] In this embodiment, the connecting valve 3 can connect the container 6 (the second side of the negative pressure generating component) and the connecting member 4 (the first side of the negative pressure generating component), so that the milk sucked in the connecting member 4 can flow into the container 6, so that the negative pressure generating component can be arranged between the container 6 and the connecting member 4. Compared with the related art in which the membrane assembly is arranged on the upper part of the three-way connector, the size of the upper part of the connector 4 can be reduced ( Figure 7 The left-right dimension of the position where the middle adsorption part 5 is located) thereby reducing the size of the upper part of the breast pump, making it easier for the user to hold and improving the user's breast pumping experience.

[0053] In the embodiment of the present application, the negative pressure generating component is an independent component, that is, it is independent of the connecting part 4, the container 6 and the adsorption part 5. This makes manufacturing easier on the one hand, and on the other hand, when problems occur with the negative pressure generating component, it can be easily replaced without complicated disassembly operations.

[0054] In one example, the negative pressure generating assembly can be disposed between the connector 4 and the container 6. The negative pressure generating assembly can be positioned in a variety of ways. For example, the connector 4 has a first connecting end, the container 6 has a second connecting end for connecting to the first connecting end, and the first connecting end and the second connecting end partially overlap (e.g., the first connecting end is sleeved outside the second connecting end), so that when the connector 4 and the container 6 are connected, the negative pressure generating assembly can be at least partially located within the overlapping portion. Of course, if the first connecting end and the second connecting end do not partially overlap, the negative pressure generating assembly can be located between the first connecting end and the second connecting end, that is, the connector 4 can be connected to the container 6 via the negative pressure generating assembly. Specifically, the first connecting end of the connector 4 is connected to the second connecting end of the container 6 via the negative pressure generating assembly.

[0055] In one example, the negative pressure generating assembly can be connected to the container 6 and the connector 4 in various ways. For example, when the connector 4 is directly connected to the container 6, the fastener 1 has a first abutting structure for abutting and cooperating with the milk inlet of the container 6 of the breast pump, and the flexible member 2 has a second abutting structure for abutting and cooperating with the connector 4 of the breast pump. The first abutting structure can be understood as a groove-like structure, into which the milk inlet of the container 6 abuts when the fastener 1 is connected to the milk inlet of the container 6. Alternatively, the first abutting structure can be understood as a flat structure, into which the milk inlet of the container 6 directly contacts. The milk inlet can be understood as the opening of the container. The second abutting structure can be understood as a protrusion, which abuts against the inner surface of the connector 4 when the flexible member 2 is connected to the connector 4. The first and second abutting structures, respectively, cooperating with the container 6 and the connector 4, can clamp and secure the negative pressure generating assembly within the breast pump, providing a more stable connection of the negative pressure generating assembly within the breast pump. The fastener 1 can be a component of the negative pressure generating assembly located near the container 6, and the positional relationship between the fastener 1 and the container 6 can be varied. For example, the fastener 1 can be mounted directly within the opening of the container 6 via a snap-fit ​​connection. Alternatively, the fastener 1 can be mounted outside the opening of the container 6, that is, the fastener 1 can cover the opening of the container 6. Of course, when the fastener 1 covers the outside of the container 6, the fastener 1 can also partially extend into the container 6.

[0056] In one example, the fastener 1 can be a component made of rigid material, such as hard plastic (such as PPSU), hard silicone, etc., so that when the flexible part 2 changes its shape to adjust the pressure of the cavity 22, the fastener 1 is not easily deformed as the pressure of the cavity 22 changes, thereby facilitating the formation of negative pressure inside the connector 4.

[0057] In one example, the flexible member 2 and the fastening member 1 can be connected in a variety of ways. For example, the flexible member 2 and the fastening member 1 can be connected by affixing them to each other, or by using a mutually compatible snap-fit ​​structure, or by using a mutually compatible plug-in structure.

[0058] In one embodiment, (e.g. Figures 1 to 4 (As shown in the figure), the edge of the fastening member 1 is provided with a connecting portion 15, and the edge of the flexible member 2 is provided with a matching portion 25 that matches the shape of the connecting portion 15. The connecting portion 15 and the matching portion 25 can be connected in various ways. For example, the connecting portion 15 includes a slot provided around the edge of the fastening member 1, and the matching portion 25 includes a protrusion that engages with the slot.

[0059] The clamping groove provided around the edge of the fastening member 1 can be understood as an annular clamping groove provided on the periphery of the fastening member 1 , and the matching portion 25 includes an annular protrusion engaged with the clamping groove.

[0060] In one embodiment, the connecting portion 15 includes a protrusion disposed around the edge of the fastening component 1 , and the matching portion 25 includes a slot engaged with the protrusion.

[0061] The protrusion provided around the edge of the fastening member 1 can be understood as an annular protrusion provided on the periphery of the fastening member 1, and the matching portion 25 includes an annular groove engaged with the groove.

[0062] In the above embodiments, the connecting portion 15 and the matching portion 25 are connected by means of the protrusion and the slot, thereby improving the airtightness of the connection between the flexible member 2 and the fastening member 1 .

[0063] In one embodiment, the connecting portion 15 is in abutment connection with the matching portion 25. The abutment connection can be understood as the connecting portion 15 pressing against the matching portion 25, thereby achieving the connection between the fastening member 1 and the flexible member 2.

[0064] By providing the connection portion 15 and the matching portion 25 in abutting connection, the airtightness of the cavity 22 surrounded by the fastening component 1 and the flexible component 2 can be improved.

[0065] In one example, the fastener 1 has two side surfaces facing away from each other, wherein one side surface ( Figure 4 The lower surface of the flexible member 2 is connected to the other side surface ( Figure 4 The flexible member 2 is provided with a protruding portion 21 protruding in a direction away from the fastening member 1 , and a cavity 22 is formed between the inner surface of the protruding portion 21 and the other side surface of the fastening member 1 .

[0066] In one example, the flexible member 2 is an integrally formed flexible silicone member, for example, made of a deformable soft rubber, flexible silicone, or other flexible material. The protrusion 21 of the flexible member 2 can, under the action of an air pressure source (e.g., an air pump), rise and fall relative to the fastening member 1 through its own flexibility, thereby creating a negative pressure in the connector 4, thereby drawing milk into the breast pump.

[0067] In another example, the flexible member 2 may be formed by connecting a plurality of flexible sub-components through a common connection method.

[0068] In one example, the connecting valve 3 is an integrally formed flexible silicone member, for example, the connecting valve 3 is made of a flexible material such as soft glue or flexible silicone. The connecting valve 3 and the flexible member 2 can be two separate components, which can be connected by a common connection method.

[0069] In one example, the flexible member 2 and the connecting valve 3 are an integrally formed flexible silicone member. The integrally formed flexible member 2 and the connecting valve 3 can avoid the problem of air leakage at the connection of multiple components, and the integrally formed structure is simple and easy to clean.

[0070] In one example, the connecting valve 3 adopts a one-way valve structure to prevent the milk from flowing back. In addition, the connecting valve 3 can be arranged outside the cavity 22. The connecting valve 3 is arranged outside the cavity 22, which can be understood as the cavity 22 and the connecting valve 3 can be arranged in a horizontal direction (such as Figure 6 left and right directions) are set at intervals so that the work of the two does not affect each other.

[0071] In one embodiment, Figure 4 、 Figure 6 As shown, the fastener 1 includes a main body 11 and a first tubular body 12, one end of the first tubular body 12 is connected to the main body 11, and a protrusion 21 is covered on the other end of the first tubular body 12. The protrusion 21, the first tubular body 12 and the part of the main body 11 surrounded by the first tubular body 12 together form a cavity 22.

[0072] According to the embodiments of the present disclosure, it should be noted that:

[0073] The body 11 can be understood as a plate-like structure at the bottom of the fastener 1. Figure 6 The body 11 may have an upper surface and a lower surface, and an annular cylindrical body (i.e., the first cylindrical body 12) may protrude from the upper surface of the body 11. When the fastener 1 and the flexible member 2 are mated, the first cylindrical body 12 is inserted into the interior of the protrusion 21, i.e., the outer surface of the first cylindrical body 12 can be in close contact with the inner surface of the protrusion 21, so that the protrusion 21 can cover the upper opening of the first cylindrical body 12.

[0074] According to an embodiment of the present disclosure, by covering the protrusion 21 on the first cylindrical body 12, the contact surface between the protrusion 21 and the fastener 1 is increased to improve the tightness of the connection between the flexible part 2 and the fastener 1, thereby improving the airtightness of the cavity 22.

[0075] In one embodiment, Figure 4 、 Figure 6 As shown, the portion of the body 11 surrounded by the first cylindrical body 12 is protruded in a direction away from the protruding portion 21 .

[0076] It can be understood that the partial area of ​​the main body 11 located in the first cylindrical body 12 is protruded toward the second side close to the negative pressure generating component, which can increase the internal space of the cavity 22 to provide sufficient ups and downs space for the protrusion 21 to perform ups and downs motion relative to the fastener 1.

[0077] In one embodiment, Figure 4 、 Figure 6 As shown, the first cylindrical body 12 is provided with a connecting portion 121 for connecting the air pressure source and the cavity 22 . The connecting portion 121 is connected to the body 11 and extends in a direction away from the first cylindrical body 12 until it protrudes from the body 11 .

[0078] In this embodiment, the connecting portion 121 can be provided on the outer circumferential surface of the first tubular body 12 and connected to the main body 11. Specifically, the connecting portion 121 can be provided protruding from the outer circumferential surface of the first tubular body 12, with the connecting portion 121 protruding beyond the edge of the main body 11. Alternatively, the connecting portion 121 can be understood as a tubular structure laterally connected to the main body 11, one end of which is connected to the cavity 22 and the other end of which extends beyond the edge of the main body 11 to connect the cavity 22 with the air pressure source. The connector 4 can have a first notch, and the connecting portion 121 can extend beyond the first notch, that is, the connecting portion 121 can protrude from the entire breast pump, thereby facilitating connection with the air pressure source, allowing the air pressure source to control the air pressure within the cavity 22 through the connecting portion 121.

[0079] In addition, in this embodiment, since the negative pressure generating component is located between the connecting member 4 and the container 6, the connecting portion 121 is also roughly located between the connecting member 4 and the container 6. Compared with the related art in which the air pump is connected to the upper port of the three-way shell, the size of the upper part of the breast pump can be reduced, making it more convenient for users to hold and use.

[0080] In one embodiment, Figure 4 、 Figure 5 As shown, the body 11 is provided with at least one communication groove 111, and each communication groove 111 in the at least one communication groove 111 is used to connect the external environment of the breast pump with the internal space of the breast pump located on the second side of the negative pressure generating component.

[0081] That is to say, a connecting groove 111 is provided on the main body 11, and the connecting groove 111 can be exposed at the first notch on the connecting piece 4. When the main body 11 covers and rests against the milk inlet of the container 6, the internal space of the container 6 can be connected with the external environment of the breast pump through the connecting groove 111 exposed at the first notch. The connecting groove 111 can have various shapes, such as a second notch recessed on the end face of the main body 11, or a hole-like structure passing through the main body 11. The positions of the multiple connecting grooves 111 on the main body 11 can be various, such as being evenly arranged on the main body 11, or multiple connecting grooves 111 being adjacently arranged on the main body 11. In one example, the connecting groove 111 is located on the side of the connecting portion 121 away from the protrusion 21, which can be understood as: the connecting groove 111 is located on the main body 11 close to the connecting portion 121, and the connecting groove 111 is located on the end face of the main body 11 facing the second side of the negative pressure generating component (towards the container 6), for example Figure 4 、 Figure 5 The two notches below the middle connecting portion 121 are the connecting grooves 111 .

[0082] During the process of breast pumping, as the milk enters the container 6, the air in the container 6 needs to be discharged to ensure the stability of the pressure in the container 6. By providing the connecting groove 111, the pressure in the internal space of the container 6 can be stabilized, and negative pressure will not be generated in the container 6, so that the breast pumping work can proceed smoothly.

[0083] In one embodiment, Figures 1 to 6 As shown, the communication valve 3 and the protrusion 21 are spaced apart in a direction parallel to the fastening member 1 , and the fastening member 1 is provided with a through hole 13 for penetrating the communication valve 3 .

[0084] According to the embodiments of the present disclosure, it should be noted that:

[0085] The direction parallel to the fastening member 1 can be the horizontal direction, that is, Figure 6 Left and right direction in .

[0086] In this embodiment, the communication valve 3 is provided outside the protruding portion 21 , and the through hole 13 can be provided at a position in the fastening member 1 corresponding to the communication valve 3 .

[0087] When the flexible member 2 is mated with the fastening member 1, the communication valve 3 can be inserted into the through hole 13 of the fastening member 1. The extension length of the communication valve 3 toward the fastening member 1 can be adjusted. For example, the communication valve 3 can extend to the interior of the container 6 or to the opening of the container 6.

[0088] According to an embodiment of the present disclosure, by providing a through hole 13 at a position of the fastening member 1 relative to the communication valve 3 , milk can pass through the fastening member 1 into the container 6 .

[0089] In one embodiment, Figures 1 to 6 As shown, the flexible member 2 further includes a base 23 connected to the fastening member 1 , the protrusion 21 protrudes from a first surface 231 of the base 23 facing away from the fastening member 1 , and the inlet end of the communication valve 3 is located in the first surface 231 .

[0090] According to the embodiments of the present disclosure, it should be noted that:

[0091] The substrate 23 may be a substantially plate-like structure, such as Figure 6 As shown, the first surface 231 may be the upper surface of the base 23, the protrusion 21 may be provided to protrude upward from the first surface 231 of the base 23, the communication valve 3 may extend downward from the base 23, and the inlet end of the communication valve 3 is connected to the first surface 231 of the base 23. It can be understood that the communication valve 3 has an inlet end and an outlet end, and milk enters the communication valve 3 through the inlet end and flows out of the communication valve 3 through the outlet end.

[0092] The first surface 231 can be a plane or a sloped surface with the inlet end of the connecting valve 3 as its lowest point, so that milk can enter the connecting valve 3 as much as possible. In one example, the first surface 231 is smoothly connected to the inlet end of the connecting valve 3 to facilitate the flow of milk from the first surface 231 of the base 23 to the connecting valve 3, thereby preventing milk from accumulating in the connecting member 4 and causing milk waste.

[0093] According to an embodiment of the present disclosure, by setting the inlet end of the connecting valve 3 to be connected to the first surface 231 of the base 23, after the breast secretes milk, the milk will flow to the connecting valve 3 through the first surface 231, avoiding milk waste.

[0094] In one embodiment, the communication valve 3 includes a conical valve body with a communication channel inside, and the conical valve body can open the communication channel under the action of the gravity of the milk.

[0095] According to the embodiments of the present disclosure, it should be noted that:

[0096] In this embodiment, the communication valve 3 may be a deformable valve made of a flexible material, which can be opened under the action of the gravity of the milk.

[0097] One end of the conical valve body connected to the flexible member 2 is the inlet end, and the end extending toward the container 6 is the outlet end. The diameter from the inlet end to the outlet end gradually decreases until it is closed. When milk does not flow toward the conical valve body, the conical valve body is in a closed state. When milk flows toward the conical valve body, the conical valve body is in an open state.

[0098] In one embodiment, Figures 4 to 6 As shown, the fastener 1 is also provided with a second cylindrical body 14, the inner cavity of the second cylindrical body 14 constitutes a through hole 13; the flexible member 2 is provided with a groove 24 on the side away from the protrusion 21 for engaging with the other end of the second cylindrical body 14, and the connecting valve 3 passes through the second cylindrical body 14.

[0099] According to the embodiments of the present disclosure, it should be noted that:

[0100] The second cylindrical body 14 can be provided on the main body 11, and the second cylindrical body 14 extends toward the direction of the protrusion 21, and the inner cavity of the second cylindrical body 14 is the through hole 13. The flexible member 2 has a recessed groove 24 on the side away from the protrusion 21. When the communication valve 3 is inserted into the through hole 13, the second cylindrical body 14 is inserted into the groove 24, and the communication valve 3 is inserted at one end of the through hole 13 ( Figure 6 The lower end of the middle connecting valve 3) can be located in the through hole 13, and can also extend to the outside of the through hole 13 (that is, penetrate the through hole 13).

[0101] According to the embodiment of the present disclosure, the second cylindrical body 14 and the groove 24 that adapt to each other are provided to improve the sealing degree of the connection between the fastener 1 and the flexible member 2 and avoid affecting the air pressure in the cavity 22.

[0102] like Figure 7 As shown, the present disclosure provides a breast pump, which includes a connector 4, a container 6, and a negative pressure generating assembly in any of the above embodiments; one end of the connector 4 is connected to the container 6, and the other end of the connector 4 has a milk inlet; the flexible member 2 in the negative pressure generating assembly abuts against the connector 4, and the negative pressure generating assembly is used to generate a negative pressure in the connector 4 for sucking milk through the undulating movement of the protrusion 21 in the flexible member 2, and the connecting valve 3 in the flexible member 2 is used to allow milk to flow from the connector 4 into the container 6.

[0103] According to the embodiments of the present disclosure, it should be noted that:

[0104] The connection between the connector 4 and the container 6 can be achieved in a variety of ways, such as a snap-fit ​​connection, a threaded connection, etc. The other end of the connector 4 can be directly placed on the breast, or it can be connected to the breast through other structures, such as through the adsorbent 5, that is, one end of the adsorbent 5 is placed on the breast, and the other end is connected to the milk inlet. The milk inlet and the adsorbent 5 can be connected in a variety of ways, such as a snap-fit ​​connection, a threaded connection, etc. The adsorbent 5 can be understood as a structure for covering the breast, which can take a variety of shapes. The container 6 is a structure for holding milk, which can be in the shape of a bottle or a bag. The connector 4 can be understood as a structure for connecting the container 6 and the adsorbent 5. For example, the connector 4 can have two ports, one port connected to the adsorbent 5 and the other port connected to the container 6. Alternatively, the connector 4 includes a structure for covering the breast.

[0105] The negative pressure generating assembly is positioned between the connector 4 and the opening of the container 6. Milk flows sequentially through the adsorption member 5 and the connector 4 to the upper side of the flexible member 2 of the negative pressure generating assembly. The milk on the flexible member 2 then flows through the connecting valve 3 into the container 6, completing the collection of the milk. The structure and description of the negative pressure generating assembly can be found in the above embodiment and will not be repeated here.

[0106] When using the breast pump, the suction member 5 is placed over the breast. By turning on the air pressure source, the air pressure within the cavity 22 of the negative pressure generating assembly is adjusted, causing the protrusion 21 to fluctuate with the changes in air pressure. During this fluctuating motion of the protrusion 21, a negative pressure is alternately generated within the connector 4, simulating an environment similar to that of a baby's oral sucking, promoting milk secretion. The milk secreted by the breast then flows through the connector 4 to the flexible member 2, and then through the connecting valve 3 into the container 6, completing the collection of the milk.

[0107] According to the embodiment of the present disclosure, since the negative pressure generating component can be arranged between the container 6 and the connector 4, the width of the breast pump close to the breast is reduced, making it easier to hold and improving the user experience.

[0108] In the description of this specification, unless otherwise expressly specified and limited, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0109] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0110] In this disclosure, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0111] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0112] The disclosure above provides many different embodiments or examples for implementing different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and settings of specific examples are described above. Of course, these are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0113] The above specific embodiments do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure shall be included within the scope of protection of this disclosure.

Claims

1. A negative pressure generating component, characterized in that: Used in a breast pump, the negative pressure generating component includes: Fasteners; a flexible member connected to the fastening member, the flexible member including a protrusion protruding in a direction away from the fastening member, a cavity enclosed between the protrusion and the fastening member, the cavity being configured to communicate with an air pressure source, the protrusion moving in an undulating manner relative to the fastening member under the action of the air pressure source to draw milk into the space in the breast pump located on the first side of the negative pressure generating assembly; a communication valve connected to the flexible member, the communication valve being used to allow the milk to flow from the first side of the negative pressure generating component into the second side of the negative pressure generating component; The first side is a side of the protruding portion facing away from the fastening member, and the first side and the second side are two opposite sides of the negative pressure generating component.

2. The negative pressure generating assembly according to claim 1, characterized in that: The buckle has a first abutting structure for abutting and matching with the milk inlet of the container of the breast pump, and the flexible member has a second abutting structure for abutting and matching with the connecting member of the breast pump.

3. The negative pressure generating assembly according to claim 1, characterized in that: The fastener comprises a main body and a first tubular body, one end of the first tubular body is connected to the main body, and the protrusion covers the other end of the first tubular body. The protruding portion, the first cylindrical body, and a portion of the main body surrounded by the first cylindrical body together form the cavity.

4. The negative pressure generating assembly according to claim 3, characterized in that: The portion of the main body surrounded by the first cylindrical body is protruded in a direction away from the protruding portion.

5. The negative pressure generating assembly according to claim 3, characterized in that: The first cylindrical body is provided with a connecting portion for connecting the air pressure source and the cavity. The communication portion is connected to the main body, and the communication portion extends in a direction away from the first cylindrical body until it protrudes from the main body.

6. The negative pressure generating assembly according to claim 5, characterized in that: The body is provided with at least one communicating groove, and each of the at least one communicating groove is used to connect the external environment of the breast pump with the internal space of the breast pump located on the second side of the negative pressure generating component.

7. The negative pressure generating assembly according to claim 6, characterized in that: The communicating groove is located on a side of the communicating portion away from the protruding portion.

8. The negative pressure generating assembly according to any one of claims 1 to 7, characterized in that: The communication valve and the protruding portion are spaced apart in a direction parallel to the fastening member, and the fastening member is provided with a through hole for penetrating the communication valve.

9. The negative pressure generating assembly according to claim 8, characterized in that: The flexible member further comprises a base connected to the fastening member, the protrusion is protrudingly provided on a first surface of the base facing away from the fastening member, and the inlet end of the communication valve is located in the first surface.

10. The negative pressure generating assembly according to claim 8, characterized in that: The communication valve is opened under the action of the gravity of the milk.

11. The negative pressure generating assembly according to claim 8, characterized in that: The fastening member is further provided with a second cylindrical body, the inner cavity of the second cylindrical body forming the through hole; A groove for engaging with the other end of the second cylindrical body is provided on a side of the flexible member away from the protruding portion, and the communication valve passes through the second cylindrical body.

12. The negative pressure generating assembly according to any one of claims 1 to 7, characterized in that: A connecting portion is provided at the edge of the fastening member, and a matching portion that matches the shape of the connecting portion is provided at the edge of the flexible member.

13. The negative pressure generating assembly according to claim 12, characterized in that: The connecting portion includes a slot arranged around the edge of the fastening member, and the matching portion includes a protrusion engaged with the slot; or, The connecting portion includes a protrusion arranged around the edge of the fastening member, and the matching portion includes a slot engaged with the protrusion. or, The connecting portion is in abutment connection with the matching portion.

14. The negative pressure generating assembly according to any one of claims 1 to 7, characterized in that: The flexible part and the connecting valve are an integrally formed flexible silicone part.

15. The negative pressure generating assembly according to any one of claims 1 to 7, characterized in that: The fastener is a component made of rigid material.

16. A breast pump, characterized in that: include: A connector, a container, and a negative pressure generating assembly according to any one of claims 1 to 15; One end of the connector is connected to the container, and the other end of the connector has a milk inlet; the fastener in the negative pressure generating assembly abuts against the container, and the flexible member in the negative pressure generating assembly abuts against the connector. The negative pressure generating assembly is used to generate a negative pressure in the connector for sucking milk through the undulating movement of the protrusion in the flexible member, and the connecting valve in the flexible member is used to allow the milk to flow from the connector into the container.

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