Breast pump

Abstract

The utility model provides a breast pump, and relates to the technical field of mother and baby products. The breast pump comprises a container, a shell, a negative pressure generating assembly and a valve. The first end of the shell is connected with the container, and the second end of the shell is provided with a milk inlet. The negative pressure generating assembly is arranged between the container and the shell and provided with a cavity used for being communicated with an air pressure source, and at least part of the cavity is located in the shell. The valve is arranged between the container and the shell. According to the scheme, the negative pressure generating assembly and the valve are arranged between the container and the shell, the size of the shell at the position where the adsorption part is located can be reduced, a user can conveniently hold the shell, and the user experience of the breast pump is improved.

Description

Technical Field

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

[0002] When using a breast pump, the user needs to grasp it and place it over the breast. How to improve the user experience of a breast pump has gradually become a research hotspot. Utility Model Content

[0003] The present disclosure provides a breast pump to improve the user experience of the breast pump. The breast pump includes a container, a shell, a negative pressure generating component and a valve.

[0004] The first end of the shell is connected to the container, and the second end of the shell has a milk inlet;

[0005] The negative pressure generating component is located between the container and the shell, and has a cavity for communicating with the air pressure source, and at least part of the cavity is located in the shell, and the cavity is used to shrink in volume under the action of the air pressure source to form a negative pressure in the shell, so as to suck milk into the shell;

[0006] The valve is arranged between the container and the shell, and the valve is used to allow milk to flow from the shell into the container.

[0007] In one embodiment, the valve is located between the cavity and the subject's breast when the breast pump is extracting milk from the subject.

[0008] In one embodiment, the housing includes a first section and a second section connected in sequence;

[0009] A milk inlet is arranged on the side of the first section, and the accommodating cavity formed by the first section is used to accommodate a nipple;

[0010] The end surface of the second section facing away from the first section is provided with a port for connecting with a container, and at least part of the cavity is located in the second section.

[0011] In one embodiment, taking a plane perpendicular to the axis of the container as a cross section, a cross-sectional area of ​​an end surface of the second section close to the first section is smaller than a cross-sectional area of ​​an end surface of the second section away from the first section.

[0012] In one embodiment, the breast pump further comprises an adsorption member, the milk inlet of the first section is connected to the adsorption member, a plane perpendicular to the axis of the container is taken as a projection plane, and a first orthographic projection of the adsorption member on the projection plane at least partially overlaps with a second orthographic projection of the shell in the projection plane.

[0013] In one embodiment, an abutment portion is provided in the housing, the abutment portion being close to the first end of the housing;

[0014] One side of the negative pressure generating component abuts against the abutting portion, the other side of the negative pressure generating component abuts against the container, and the first end of the shell is detachably connected to the container.

[0015] In one embodiment, the negative pressure generating assembly comprises:

[0016] A cover member is disposed against and covers the opening end of the container;

[0017] An undulating member abuts against the abutting portion and is connected to a side of the cover member facing away from the container;

[0018] The undulating member and the cover member surround a cavity.

[0019] In one embodiment, the undulating member includes a base body engaged with the cover member and a protrusion connected to the base body;

[0020] The protruding portion is arranged away from the cover member, and the protruding portion and the cover member form a cavity.

[0021] In one embodiment, the valve is connected to the base, and the valve and the cavity are spaced apart; the cover is provided with a through hole, and the valve passes through the through hole.

[0022] In one embodiment, the valve and the undulating member are an integral piece formed by integral processing.

[0023] In one embodiment, the cover member is provided with a connecting portion, the connecting portion is used to connect the air pressure source with the cavity, and the shell is provided with a notch for penetrating the connecting portion.

[0024] In one embodiment, the notch is located at the first end of the shell, and the notch is located on one side of the central axis surface of the shell.

[0025] In one embodiment, a protrusion is provided on the edge of the undulating member on a side facing away from the covering member, and a slot for engaging with the protrusion is provided on the abutting portion.

[0026] In one embodiment, the first end of the shell is connected to the negative pressure generating component, and the negative pressure generating component is connected to the container.

[0027] By providing a shell with two ports, one end of the shell has a milk inlet, and the other end is connected to a container, and a negative pressure generating component and a valve are provided between the shell and the milk inlet, the negative pressure generating component can generate negative pressure in the shell by contracting the volume of the cavity inside it, thereby promoting the secretion of milk. The valve can form a channel that is conducive to the circulation of milk, and then collect the milk in the container. Since the negative pressure generating component is provided between the container and the shell, the size of the shell at the location of the adsorbent can be reduced, so that the user can conveniently hold the shell, thereby improving the user experience of the breast pump.

[0028] It should be understood that the contents described in the utility model summary 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 easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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:

[0030] Figure 1 is a schematic structural diagram of a breast pump according to an embodiment of the present disclosure;

[0031] Figure 2 is a schematic structural diagram of a breast pump according to an embodiment of the present disclosure;

[0032] Figure 3 is a schematic structural diagram of a breast pump according to an embodiment of the present disclosure;

[0033] Figure 4 is a schematic structural diagram of a negative pressure generating assembly according to an embodiment of the present disclosure;

[0034] Figure 5 It is a schematic structural diagram of the negative pressure generating component of an embodiment of the present disclosure.

[0035] Description of reference numerals:

[0036] 1: container;

[0037] 2: Shell;

[0038] 21: Gap;

[0039] 22: first paragraph;

[0040] 23: Second paragraph;

[0041] 24: Butt part;

[0042] 3: Negative pressure generating component;

[0043] 31: cavity;

[0044] 32: Covering piece;

[0045] 321: connecting part;

[0046] 33: undulating pieces;

[0047] 331: matrix;

[0048] 332: protrusion;

[0049] 333: first surface;

[0050] 4: Valve;

[0051] 5: Adsorption parts. DETAILED DESCRIPTION

[0052] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art 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.

[0053] In the related art, a breast pump generally includes a three-way housing, a horn cover, a milk bottle and a membrane assembly. The three-way housing has three ports, the first port is connected to the horn cover, the second port is connected to the milk bottle, and the third port is provided with a membrane assembly and connected to an air pump. The horn cover is used to cover the breast, the membrane assembly is used to change the air pressure in the three-way housing, and the horn cover and the membrane assembly are respectively arranged on the left and right sides of the upper part of the three-way housing, and the milk bottle is arranged at the lower end of the three-way housing.

[0054] However, in the related art, when the breast pump is in use, the user holds the three-way shell and presses the horn cover onto the breast. In order to make the horn cover fit tightly to the breast, the user usually needs to hold the upper part of the three-way shell (i.e., the upper part of the breast pump). Holding for a long time will make the user feel tired. In addition, the upper part of the three-way shell is also provided with a membrane assembly, which will make its size larger, inconvenient to hold, and poor user experience.

[0055] In order to solve the above technical problems, the embodiment of the present disclosure provides a breast pump, including a container, a shell, a negative pressure generating component and a valve. The first end of the shell is connected to the container, and the second end of the shell has a milk inlet. The negative pressure generating component is located between the container and the shell, and the negative pressure generating component has a cavity for communicating with an air pressure source, and the cavity is used to shrink in volume under the action of the air pressure source to form a negative pressure in the shell, so as to suck milk into the shell. When the negative pressure generating component is located between the shell and the container, at least part of the cavity is located in the shell. The valve is arranged between the container and the shell, and the valve is used to allow milk to flow from the shell into the container.

[0056] The disclosed embodiment is provided with a shell including two ports, the second end of the shell has a milk inlet, the first end of the shell is connected to the container, and a negative pressure generating component and a valve are provided between the shell and the container. Negative pressure can be generated in the shell by contraction of the volume of the cavity in the negative pressure generating component, so as to achieve the effect of sucking milk from the breast. The valve can form a channel that is conducive to the circulation of milk, and then collect the milk in the container. The negative pressure generating component is provided between the container and the shell, which can reduce the size of the shell at the position where the adsorbent is located. On the one hand, the user can conveniently hold the shell, and on the other hand, during the milk pumping process, the user can put part of the shell and the adsorbent into the user's ordinary underwear, so that the user can perform the milk pumping operation while wearing the underwear.

[0057] The present disclosure provides a breast pump, such as Figures 1 to 3 As shown, it includes a container 1, a shell 2, a negative pressure generating component 3 and a valve 4.

[0058] The first end of the housing 2 is connected to the container 1 , and the second end of the housing 2 has a milk inlet.

[0059] The negative pressure generating component 3 is arranged between the container 1 and the shell 2. The negative pressure generating component 3 has a cavity 31 for communicating with the air pressure source, and at least part of the cavity 31 is located in the shell 2. The cavity 31 is used to shrink in volume under the action of the air pressure source to form a negative pressure in the shell 2, so as to suck milk into the shell 2.

[0060] The valve 4 is disposed between the container 1 and the shell 2 , and the valve 4 is used to allow milk to flow from the shell 2 into the container 1 .

[0061] According to the embodiments of the present disclosure, it should be noted that:

[0062] The container 1 can be understood as a structure for carrying milk, which can be a bottle-shaped body, a bag-shaped body, etc.

[0063] The housing 2 can be understood as a structure including two interconnected ports, one of which has a milk inlet, which can be directly placed on the breast or can be placed on the breast through a structure such as an adsorbent 5, and the other port is connected to the container 1. The housing 2 can be in a variety of shapes, such as a cylindrical body, a cone, etc. It can be understood that, for example, Figure 1 The two ports of the shell 2 may be located approximately at the upper and lower ends of the shell 2. However, the orientation of the two ports may be set according to actual conditions. For example, when the milk inlet is covered with a breast through a structure such as an adsorbent 5, the orientation of the two ports may be at a certain angle (i.e., the shell 2 may have a curved neck so that the orientation of the two ports is at an angle). For example Figure 1 In the embodiment, the upper port is arranged generally toward the left (towards the adsorbent 5), and the lower port is arranged downward (towards the container 1).

[0064] There are many ways to connect the shell 2 and the container 1, such as snap-fit ​​connection, threaded connection, etc. A negative pressure generating component 3 is provided between the shell 2 and the container 1. It can be understood that there are many positions for the negative pressure generating component 3. For example, the first end of the shell 2 has a first connecting end, and the opening of the container 1 has a second connecting end for connecting to the first connecting end. When the first connecting end and the second connecting end have a partial overlap (for example, one connecting end is sleeved outside the other connecting end), at this time, the negative pressure generating component 3 can be at least partially located in the overlapping portion. Of course, when the first connecting end and the second connecting end are connected without an overlapping portion, the negative pressure generating component 3 can be located between the first connecting end and the second connecting end, that is, the shell 2 can be connected to the container 1 through the negative pressure generating component 3, and it can also be understood that the first connecting end is connected to the second connecting end through the negative pressure generating component 3.

[0065] The cavity 31 of the negative pressure generating component 3 is connected to the air pressure source, which is a pump structure capable of realizing functions such as air extraction. The volume of the cavity 31 can be shrunk through the action of the air pressure source, thereby affecting the air pressure in the space formed between the negative pressure generating component 3, the shell 2 and the breast (i.e., in the shell 2).

[0066] The position of the cavity 31 relative to the housing 2 can be understood as that the cavity 31 is entirely located in the internal space of the housing 2, or a portion of the cavity 31 is located in the internal space of the housing 2, and the other portion is located in the internal space of the container 1. By arranging at least a portion of the cavity 31 in the internal space of the housing 2, the negative pressure generating assembly 3 is located between the first end of the housing 2 and the container 1, and the size of the housing 2 can be adaptively reduced. When using the breast pump, it is convenient for the user to grip and place the breast pump cover on the breast.

[0067] The connection relationship between the shell 2, the negative pressure generating component 3 and the container 1 can be understood as the shell 2 is connected to the container 1 through the negative pressure generating component 3, that is, the first end of the shell 2 is connected to the negative pressure generating component 3, and the negative pressure generating component 3 is connected to the container 1, or the shell 2 can be directly connected to the container 1.

[0068] It can be understood that by adjusting the force of the air pressure source, the shape of the negative pressure generating component 3 can be changed, and the air pressure in the shell 2 adjacent to the cavity 31 can be adjusted. For example, when the air pressure source extracts the gas in the cavity 31, the side of the negative pressure generating component 3 facing the shell 2 can be deformed to reduce the volume of the cavity 31, so that the air pressure in the shell 2 is reduced to form a negative pressure environment, and the negative pressure environment acts on the breast to absorb milk. When the air pressure source stops pumping air or exhausts air into the cavity 31, the cavity 31 can be connected to the atmosphere, and the cavity 31 returns to its original state, thereby restoring the air pressure in the shell 2.

[0069] The valve 4 is disposed between the container 1 and the shell 2 and is used to conduct the container 1 and the shell 2. The position of the valve 4 relative to the container 1 and the shell 2 can be various, for example, the valve 4 is disposed on the container 1, or on the shell 2, or the valve 4 is disposed on the negative pressure generating component 3, so that the valve 4 can be located at the connection between the container 1 and the shell 2.

[0070] It can be understood that the valve 4 is a structure that connects the housing 2 and the container 1. After the milk in the housing 2 flows into the valve 4, the milk can flow to the container 1 through the valve 4. The milk can flow into the container 1 through the valve 4 by its own gravity. When no milk flows into the valve 4, the valve 4 is in a closed state, or when the housing 2 is in a negative pressure environment, the valve 4 is also in a closed state. It can also be understood that the opening and closing function of the valve 4 is affected by the air pressure of the cavity 31. For example, when the pressure of the cavity 31 decreases, the negative pressure generating component 3 contracts, thereby forming a negative pressure in the housing 2. At this time, the valve 4 is in a closed state; after sucking the milk, the pressure of the cavity 31 returns to a normal value or increases, and the negative pressure generating component 3 recovers its deformation, thereby restoring the pressure of the housing 2 to a normal value. At this time, the valve 4 is in an open state, so that the milk in the housing 2 flows to the container 1 through the valve 4 in an open state. In one example, the valve 4 adopts a one-way valve structure to prevent milk from flowing back.

[0071] The positional relationship between the valve 4 and the cavity 31 can be various. For example, the valve 4 is arranged outside the cavity 31. The valve 4 is arranged outside the cavity 31, which can be understood as the cavity 31 and the valve 4 are arranged horizontally (e.g., Figure 1 center left and right directions).

[0072] In this embodiment, a negative pressure generating component 3 is arranged between one end of the shell 2 and the container 1, and the cavity 31 of the negative pressure generating component 3 is connected to the pressure source. The milk inlet of the shell 2 is attached to the breast. When using the breast pump, the air pressure source is turned on to inhale, and the air pressure in the cavity 31 is reduced to shrink the cavity 31 in the negative pressure generating component 3, so that negative pressure is formed in the shell 2 to achieve the effect of sucking milk. After completing one suction action, the air pressure source stops inhaling or exhausts air into the cavity 31 to increase the air pressure in the cavity 31, so that the negative pressure generating component 3 recovers its deformation, and then the pressure of the shell 2 is restored. At this time, the milk that has been sucked out of the shell will flow to the container 1 through the valve 4, and then the air pressure source inhales again to repeat the above operation to continue the milk sucking work.

[0073] According to the embodiment of the present disclosure, by providing a shell 2 including two ports, the first end of the shell 2 is connected to the container 1, the second end is attached to the breast, and a negative pressure generating component 3 and a valve 4 are provided between the shell 2 and the container 1. The negative pressure generating component 3 can generate negative pressure in the shell 2 by contracting the volume of the cavity 31, and suck the milk secreted by the breast under the negative pressure environment. The negative pressure generating component 3 is provided between the container 1 and the shell 2, which can reduce the size of the shell 2 at the location of the adsorbent 5. On the one hand, the user can conveniently hold the shell 2, and on the other hand, during the breast pumping process, the user can put part of the shell 2 and the adsorbent 5 into the user's ordinary underwear, so that the user can perform the breast pumping operation while wearing the underwear, thereby improving the user experience of the breast pump.

[0074] In one embodiment, Figures 1 to 5 As shown, an abutment portion 24 is provided in the shell 2, and the abutment portion 24 is close to the first end of the shell 2; one side of the negative pressure generating component 3 abuts against the abutment portion 24, and the other side of the negative pressure generating component 3 abuts against the container 1, and the first end of the shell 2 is detachably connected to the container 1.

[0075] According to the embodiments of the present disclosure, it should be noted that:

[0076] The housing 2 is provided with an abutting portion 24 in a part of the area near the first end, and when the housing 2 is connected to the container 1, the abutting portion 24 abuts against the negative pressure generating component 3, so that the negative pressure generating component 3 is firmly disposed between the housing 2 and the container 1. Further, the negative pressure generating component 3 may have two opposite end faces, one of which abuts against the abutting portion 24 on the housing 2, and the other abuts against the opening of the container 1.

[0077] There are many ways to connect the shell 2 and the container 1, such as threaded connection, snap-fit ​​connection, etc. When necessary, the shell 2 and the container 1 are connected, and when cleaning the breast pump or after completing milking, the shell 2 and the container 1 can be disassembled.

[0078] The abutting portion 24 is adaptively connected to the negative pressure generating component 3, which can improve the airtightness of the breast pump and avoid air leakage.

[0079] According to the embodiment of the present disclosure, by setting the abutment portion 24 to abut against the negative pressure generating component 3, the negative pressure generating component 3 can be firmly abutted between the container 1 and the shell 2, while improving the airtightness of the shell 2 and the negative pressure generating component 3 to avoid air leakage. By setting the shell 2 and the container 1 to be detachably connected, it is convenient for the user to disassemble and clean the breast pump. In addition, in the embodiment of the present application, the negative pressure generating component 3, the shell 2 and the container 1 are all independent components, and the breast pump can be composed of the three by the cooperation of the three when in use. When one of the components is damaged, it can be replaced separately. At the same time, when the shell 2 and the negative pressure generating component 3 are independent structures, the structure of the shell is simpler than the structure of the prior art, which can facilitate manufacturing on the one hand and convenient replacement when there is a problem with the component on the other hand.

[0080] In one embodiment, Figure 1 As shown, the inner surface of the shell 2 is provided with an abutment portion 24 , and the abutment portion 24 is used to press the negative pressure generating assembly 3 against the opening of the container 1 .

[0081] According to the embodiments of the present disclosure, it should be noted that:

[0082] The abutment portion 24 can be selected in a variety of shapes, such as an annular convex structure extending along the circumference of the housing 2, an annular concave structure, etc., and accordingly, the negative pressure generating component 3 can be provided with a matching structure adapted to the abutment portion 24, so that the abutment portion 24 can be directly abutted against the negative pressure generating component 3. In one example, the inner surface of the housing 2 is provided with an annular convexity protruding along the circumference of the housing 2, and the undulating member 33 of the negative pressure generating component 3 is provided with an annular concave along the circumference of the undulating member 33, and the annular convexity is clamped in the annular concave.

[0083] It can be understood that the abutment portion 24 can be annular, and a snap-fit ​​gap is formed between the abutment portion 24 and the opening of the container 1. The edge of the negative pressure generating component 3 can be snap-fitted in the snap-fit ​​gap, thereby realizing the installation of the negative pressure generating component 3 and achieving a sealing effect.

[0084] According to the embodiment of the present disclosure, the negative pressure generating component 3 can be firmly pressed against the opening of the container 1 to prevent air leakage between the negative pressure generating component 3 and the container 1 from affecting the milk extraction efficiency.

[0085] The negative pressure generating component 3 may be an integral part or a split connected part (i.e., multiple independent parts). Figure 4 , Figure 5 As shown, the negative pressure generating assembly 3 includes a cover member 32 and an undulating member 33. When the negative pressure generating assembly 3 is an integral member, the cover member 32 and the undulating member 33 can be integrally formed.

[0086] When the negative pressure generating assembly 3 cooperates with the container 1, the cover member 32 abuts against and covers the open end of the container 1; the undulating member 33 abuts against the abutting portion 24 and is connected to the side of the cover member 32 facing away from the container 1, and the undulating member 33 and the cover member 32 enclose a cavity 31.

[0087] According to the embodiments of the present disclosure, it should be noted that:

[0088] The open end of the container 1 can be understood as a port on the container 1 for communicating with the inner cavity of the shell 2, through which the milk flows into the container 1. The cover member 32 abuts against or covers the open end of the container 1. The undulating member 33 is located on the side of the cover member 32 away from the container 1, and forms a cavity 31 with the cover member 32. There are many ways to connect the undulating member 33 and the cover member 32, such as snap connection, threaded connection, or direct fit connection.

[0089] The cover member 32 and the undulating member 33 can both be made of flexible materials, and then when the air pressure source sucks air into the cavity 31, the volume of the cavity 31 becomes smaller, so that the cover member 32 moves toward the undulating member 33, and the undulating member 33 moves toward the cover member 32, thereby forming a negative pressure in the shell 2. Alternatively, the undulating member 33 is made of a flexible material, and the cover member 32 can be made of a rigid material, which can prevent excessive negative pressure from being generated in the container 1, and generate relatively more negative pressure in the shell 2, so that the fluctuation of the cavity 31 has a greater impact on the pressure in the shell 2. When the air pressure source sucks air into the cavity 31, the volume of the cavity 31 becomes smaller, so that the undulating member 33 moves toward the cover member 32, thereby forming a negative pressure in the shell 2.

[0090] According to the embodiment of the present disclosure, by configuring the negative pressure generating assembly 3 to be detachably connected with the undulating member 33 and the cover member 32, it is more convenient for the user to disassemble and assemble it when replacing or cleaning it later. The cover member 32 is configured to cover the open end of the container 1, and the undulating member 33 abuts against the abutment portion 24, which can improve the airtightness of the breast pump and prevent air leakage between the container 1, the shell 2, and the negative pressure generating assembly 3 from affecting the milk suction efficiency.

[0091] In another embodiment, when the negative pressure generating assembly 3 includes a cover member 32 and an undulating member 33, a protrusion is provided on the edge of the undulating member 33 on the side away from the cover member 32, and a slot for engaging with the protrusion is provided on the abutting portion 24. According to this embodiment, the undulating member 33 can be firmly pressed between the cover member 32 and the housing 2 to avoid leakage during milk pumping, and the negative pressure generating assembly 3 can be firmly pressed against the open end of the container 1 to ensure the firmness of the breast pump components and improve the user experience of the breast pump.

[0092] In one embodiment, Figure 1 , Figure 5As shown, the undulating member 33 includes a base 331 engaged with the cover member 32 and a protrusion 332 connected to the base 331 , the protrusion 332 is arranged away from the cover member 32 ; and the protrusion 332 and the cover member 32 surround a cavity 31 .

[0093] According to the embodiments of the present disclosure, it should be noted that:

[0094] It can be understood that the base 331 can be roughly plate-shaped, the surface of the base 331 facing the shell 2 can be the first surface 333, the undulating member 33 is protruding in the direction away from the cover member 32 and is provided with a protrusion 332, and the protrusion 332 protrudes from the first surface 333.

[0095] When the undulating member 33 is connected with the cover member 32, the base 331 of the undulating member 33 is connected with the cover member 32, and a cavity 31 is formed between the inner surface of the protrusion 332 and the first surface 333 of the cover member 32. When the air pressure source is pumping air, the volume of the cavity 31 is reduced, and the protrusion 332 moves toward the direction close to the cover member 32, thereby forming a negative pressure in the shell 2; when the air pressure source stops pumping or exhausting air, the protrusion 332 returns to its original state in the direction away from the cover member 32, thereby restoring the original air pressure in the shell 2. In other words, the protrusion 332 can change the air pressure in the shell 2 by performing an undulating motion relative to the cover member 32.

[0096] The protrusion height of the protrusion 332 can be adjusted as needed, for example, a protrusion 332 with a higher protrusion height or a protrusion 332 with a lower protrusion height can be provided to form cavities 31 of different sizes.

[0097] A groove with a bottom extending toward the container 1 can be provided at the position where the cover member 32 is covered by the protrusion 332. The bottom and side walls of the groove and the protrusion 332 form a cavity 31, which can increase the volume of the cavity 31, and is conducive to allowing the undulating member 33 to undulate and deform in a larger space, thereby helping to increase the negative pressure and thereby improve the suction force of the breast pump.

[0098] According to the embodiment of the present disclosure, a cavity 31 is formed between the protrusion 332 of the undulating member 33 and the cover member 32, and when the protrusion 332 is deformed, the air pressure in the housing 2 can be adjusted. At the same time, the protrusion 332 of the undulating member 33 protrudes in the direction away from the cover member 32, which can facilitate milk to slide from the protrusion 332 to the first surface 333, thereby facilitating the collection of milk.

[0099] In one embodiment, Figure 1 , Figure 5 As shown, the valve 4 is connected to the base 331 , and the valve 4 and the cavity 31 are spaced apart, the cover 32 is provided with a through hole, and the valve 4 passes through the through hole.

[0100] According to the embodiments of the present disclosure, it should be noted that:

[0101] It can be understood that the valve 4 is arranged on the undulating member 33 and is located at a different position from the protrusion 332 on the base 331. That is, the protrusion 332 and the valve 4 are arranged at intervals on the base 331. In one example, the first surface 333 is the end surface of the base 331 that is away from the cover member 32 (i.e., toward the housing 2). In one embodiment, the inlet end of the valve 4 is flush with or lower than the first surface 333. In the case where milk exists on the first surface 333, it is easier to flow into the container 1 through the valve 4.

[0102] The spacing direction between the valve 4 and the cavity 31 can be adjusted, for example Figure 1 , Figure 5 As shown, the valve 4 and the cavity 31 are spaced apart in a direction perpendicular to the axis of the container 1. The axis direction of the container 1 can be Figure 1 In the up and down direction, the valve 4 and the cavity 31 can be along Figure 1 The left and right spacing settings.

[0103] The through hole provided in the cover member 32 can be understood as that when the undulating member 33 is connected with the cover member 32, the valve 4 is inserted or inserted into the through hole, that is, the valve 4 can extend from the base 331 toward the cover member 32 (i.e., Figure 1 The through hole can extend downward from the cover 32, and can also extend into the through hole or pass through the through hole to the container 1. By providing a through hole adapted to the valve 4 in the cover 32, the milk can pass through the cover 32 and enter the container 1. The shape of the through hole can be adjusted according to the shape of the valve 4. For example, the valve 4 is similar to an inverted trapezoid, and the through hole is generally a trapezoidal hole or a straight cylindrical hole, so that there is no gap between the two.

[0104] According to the embodiment of the present disclosure, the valve 4 is arranged on the base 331. After the milk flows from the housing 2 into the base 331, the milk can flow into the container 1 through the valve 4 on the base 331, thereby reducing the accumulation of milk on the base 331. The valve 4 and the cavity 31 are arranged at intervals, so that the two can work independently without affecting each other.

[0105] In one embodiment, Figure 1 As shown, when the breast pump is sucking milk from a user, valve 4 is located between cavity 31 and the user's breast.

[0106] According to the embodiments of the present disclosure, it should be noted that:

[0107] When the breast pump is used to suck milk from the user, the valve 4 is located on the side of the base 331 close to the breast, and when the breast pump is used to suck milk, the upper part of the breast pump is usually tilted toward the breast side of the user. After the milk sucked by the breast pump enters the shell 2, the milk will flow toward the direction close to the breast. In this embodiment, the milk can flow to the valve 4 faster.

[0108] According to the embodiment of the present disclosure, by arranging the valve 4 close to the breast, after the breast secretes milk, the milk can flow to the valve 4 faster and flow to the container 1 through the valve 4, further avoiding the accumulation of milk in the shell 2 and improving the milk collection efficiency.

[0109] In one embodiment, Figures 1 to 3 As shown, the shell 2 includes a first section 22 and a second section 23 connected in sequence; a milk inlet is provided on the side of the first section 22, and the accommodating cavity formed by the first section 22 is used to accommodate a nipple; the end surface of the second section 23 facing away from the first section 22 is provided with a port for connecting to the container 1, and at least part of the cavity 31 is located in the second section 23.

[0110] According to the embodiments of the present disclosure, it should be noted that:

[0111] It can be understood that the first section 22 of the shell 2 has a milk inlet, and the first section 22 can also be connected to other structures such as the adsorbent 5, and the second section 23 of the shell 2 is used to connect to the container 1. Figure 1 The second section 23 may be located at the lower part of the first section 22, and the side surface of the first section 22 may be understood as the side surface of the first section 22 facing the breast. Figure 1 , the port of the second section 23 can be located at the lower end of the second section 23, that is, the port faces downward. Alternatively, the first section 22 of the housing 2 and the second section 23 of the housing 2 can be understood as Figure 1 The upper and lower parts of the dotted line A (the lower part is the side with the container 1).

[0112] When the breast pump is used to express milk, the nipple can extend into the first section 22 .

[0113] The explanation and understanding of at least a portion of the cavity 31 being accommodated within the second section 23 may refer to the above-mentioned description of the position of the cavity 31 relative to the housing 2, which will not be repeated here.

[0114] The second section 23 may be shaped in a variety of ways, for example, the second section 23 may be cylindrical or conical. In one embodiment, with the plane perpendicular to the axis of the container 1 as the cross section, the cross-sectional area of ​​the end face of the second section 23 close to the first section 22 is smaller than the cross-sectional area of ​​the end face of the second section 23 away from the first section 22. It is understood that Figure 1The cross-sectional area of ​​the second section 23 gradually decreases from bottom to top, which can not only reduce the size of the upper part of the breast pump, but also provide sufficient accommodating space for the cavity 31. In addition, the cross-sectional area of ​​the second end 23 close to the container 1 is larger, and cavities 31 of different specifications can be loaded, thereby improving the applicability of the shell 2.

[0115] According to the embodiments of the present disclosure, the volume of the first section 22 of the shell 2 can be reduced by setting the upper part of the shell 2 to a shape with a smaller cross-sectional area, which is convenient for the user to grasp and also convenient for the user to put the breast pump directly into the user's ordinary underwear when expressing milk, without the need for specially adapted underwear specifically for breast pumps.

[0116] In one embodiment, the valve 4 and the undulating member 33 are an integral piece formed by integral processing.

[0117] The valve 4 and the undulating member 33 are made of flexible material through an integrated processing technology. The valve 4 and the undulating member 33 formed in one piece have a better sealing effect to ensure the airtightness of the cavity 31. In addition, the valve 4 and the undulating member 33 formed in one piece can avoid the problem of connecting two independent parts and residual milk at the connection.

[0118] In one embodiment, the breast pump further comprises an adsorption member 5, the milk inlet of the first section 22 is connected to the adsorption member 5, a plane perpendicular to the axis of the container 1 is taken as a projection plane, and a first orthographic projection of the adsorption member 5 on the projection plane at least partially overlaps with a second orthographic projection of the shell 2 in the projection plane.

[0119] There are many ways to connect the milk inlet and the adsorption member 5, such as snap connection, threaded connection, etc.

[0120] The shape of the suction piece 5 can be various. For example, the suction piece 5 is generally in the shape of a trumpet, so as to better adhere to the breast and avoid air leakage between it and the breast that affects the efficiency of milk suction.

[0121] The projection plane can be understood as Figure 1 The horizontal plane where the bottom of the container 1 is located, that is, the projection of the adsorbent 5 from top to bottom onto the horizontal plane, partially overlaps with the projection of the shell 2 from top to bottom onto the horizontal plane. Figure 1 As shown in the example, the position between the adsorption component 5 and the shell 2 can also be understood as follows: if the leftmost point of the adsorption component 5 is taken as the zero point, the horizontal distance from the rightmost point of the adsorption component 5 is greater than the horizontal distance from the leftmost point of the shell 2.

[0122] According to the embodiments of the present disclosure, the volume of the shell 2 can be reduced, which is convenient for the user to grasp and also convenient for the user to put the breast pump directly into the user's ordinary underwear when expressing milk, without the need for specially adapted underwear specifically for the breast pump.

[0123] In one embodiment, Figures 1 to 5 As shown, the cover member 32 is provided with a connecting portion 321 , and the connecting portion 321 is used to connect the air pressure source with the cavity 31 , and the housing 2 is provided with a notch 21 for penetrating the connecting portion 321 .

[0124] According to the embodiments of the present disclosure, it should be noted that:

[0125] The connecting portion 321 may be a tubular structure, which may be provided separately from the cover member 32, or it may be integrally formed with the cover member 32 to form an integral part. The connecting portion 321 is used to communicate with the cavity 31 and the air pressure source respectively, for example, directly connect to the air pressure source, or connect to the air pressure source through a hose, which may be specifically configured according to actual conditions. Figure 2 As shown in the figure, the x-axis is the left-right direction in the figure, the y-axis is the up-down direction in the figure, and the z-axis (indicated by a circle in the figure) is the direction perpendicular to the x-axis and the y-axis. The dotted line B in the figure represents the central axis of the housing 2. It can be understood that Figure 2 The plane formed by the middle x-axis and the y-axis is the first plane, and the middle axis plane is a plane perpendicular to the first plane, which can also be understood as the plane formed by the y-axis and the z-axis. The connecting portion 321 can be located on the left or right side of the middle axis plane, so that the connecting portion 321 is convenient for connecting to the air pressure source, and can avoid the holding position of the hand, further improving the user experience.

[0126] The notch 21 provided in the shell 2 is used to penetrate the connecting portion 321 so that the connecting portion 321 can be connected to the air pressure source. In one example, the first end of the shell 2 is provided with a notch 21, and the notch 21 is located on one side of the central axis surface of the shell 2. In another example, the notch 21 can also be located at Figure 2 The rear side, right side, left rear side, left front side, right rear side, right front side, etc. of the first end of the shell 2 shown. When the shell 2 is connected to the opening of the container 1, the connecting portion 321 is stuck in the notch 21. Further, the connecting portion 321 extends to the outside of the notch 21, that is, the outside of the shell 2, so as to facilitate connection with the air pressure source. In one embodiment, the notch 21 and the connecting portion 321 are located on the same side of the central axis plane, so that the connecting portion 321 passes through the notch 21.

[0127] According to an embodiment of the present disclosure, a connecting portion 321 connected to the cavity 31 is provided so that the air pressure source can adjust the shape of the cavity 31 through the connecting portion 321. The connecting portion 321 is provided with a notch 21 so that the connecting portion 321 extends to the outside of the housing 2 to facilitate connection with the air pressure source.

[0128] In the description of this specification, unless otherwise explicitly stipulated 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 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 referred device or element 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.

[0129] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0130] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0131] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is 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 that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0132] The disclosure above provides many different embodiments or examples to realize 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, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0133] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A breast pump, characterized in that: include: container; A shell, wherein a first end of the shell is connected to the container, and a second end of the shell has a milk inlet; a negative pressure generating component, located between the container and the shell, the negative pressure generating component having a cavity for communicating with an air pressure source, and at least a portion of the cavity is located in the shell, the cavity is used to shrink in volume under the action of the air pressure source to form a negative pressure in the shell, and suck milk into the shell; A valve is arranged between the container and the shell, and the valve is used to allow the milk to flow from the shell into the container.

2. The breast pump according to claim 1, characterized in that: When the breast pump is used to suck milk from a user, the valve is located between the cavity and the user's breast.

3. The breast pump according to claim 1, characterized in that: The housing comprises a first section and a second section connected in sequence; The milk inlet is arranged on the side of the first section, and the accommodating cavity formed by the first section is used to accommodate a nipple; An end surface of the second section facing away from the first section is provided with a port for connecting with the container, and at least a part of the cavity is located in the second section.

4. The breast pump according to claim 3, characterized in that: Taking a plane perpendicular to the axis of the container as a cross section, the cross-sectional area of ​​the end surface of the second section close to the first section is smaller than the cross-sectional area of ​​the end surface of the second section away from the first section.

5. The breast pump according to claim 3, characterized in that: The breast pump also includes an adsorption component, the milk inlet of the first section is connected to the adsorption component, and a plane perpendicular to the axis of the container is used as a projection plane, and a first orthographic projection of the adsorption component on the projection plane at least partially overlaps with a second orthographic projection of the shell in the projection plane.

6. The breast pump according to any one of claims 1 to 5, characterized in that: An abutment portion is provided in the shell, and the abutment portion is close to the first end of the shell; One side of the negative pressure generating component abuts against the abutting portion, the other side of the negative pressure generating component abuts against the container, and the first end of the shell is detachably connected to the container.

7. The breast pump according to claim 6, characterized in that The negative pressure generating component comprises: A cover member, which abuts against and covers the open end of the container; an undulating member, the undulating member abutting against the abutting portion and connected to a side of the cover member facing away from the container; The undulating member and the covering member surround the cavity.

8. The breast pump according to claim 7, characterized in that The undulating member includes a base body engaged with the cover member and a protruding portion connected to the base body; The protruding portion is arranged away from the cover member, and the protruding portion and the cover member surround the cavity.

9. The breast pump according to claim 8, characterized in that The valve is connected to the base, and the valve and the cavity are spaced apart; the cover is provided with a through hole, and the valve is passed through the through hole.

10. The breast pump according to claim 7, characterized in that The valve and the undulating member are an integral part formed by integral processing.

11. The breast pump according to claim 7, characterized in that: The cover member is provided with a connecting portion, and the connecting portion is used to connect the air pressure source with the cavity, and the shell is provided with a notch for penetrating the connecting portion.

12. The breast pump according to claim 11, characterized in that The notch is located at the first end of the shell, and the notch is located on one side of the central axis surface of the shell.

13. The breast pump according to claim 7, characterized in that A protrusion is provided on the edge of the undulating member on a side away from the covering member, and the abutting portion is provided with a slot for engaging with the protrusion.

14. The breast pump according to any one of claims 1 to 5, characterized in that: The first end of the shell is connected to the negative pressure generating component, and the negative pressure generating component is connected to the container.

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