Breast pump main machine and breast pump

Abstract

The utility model discloses a breast pump main machine and a breast pump, and relates to the technical field of mother and baby products, the breast pump main machine comprises a shell assembly, a negative pressure assembly and an elastic piece; the shell assembly comprises a negative pressure opening, and the negative pressure opening is used for being communicated with the milk sucking assembly. The negative pressure assembly is arranged in the shell assembly, is communicated with the negative pressure opening and is used for providing negative pressure during milk suction; the negative pressure assembly is connected with the shell assembly through an elastic piece, and the elastic piece is used for buffering vibration generated by the negative pressure assembly in the circumferential direction of the elastic piece. According to the breast pump main machine, vibration generated by the negative pressure pump in the circumferential direction is effectively absorbed through the elastic piece, and therefore the noise reduction effect on the negative pressure pump is improved.

Description

Technical Field

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

[0002] Breast pumps have become an indispensable tool for many nursing mothers. They use a vacuum pump to create suction, helping mothers extract breast milk from the mammary glands for storage and feeding. The vacuum pump contains a rotating motor and transmission assembly, which provide the power source for the negative pressure generated by the pump.

[0003] However, when a negative pressure pump is operating, the high-speed rotation of the motor and transmission assembly causes the pump to generate significant vibration and noise. Conventional technology uses a buffer at the end of the negative pressure pump to reduce the noise generated by the vibration. However, because the negative pressure pump generates vibrations circumferentially during operation, conventional buffers are ineffective at dampening the vibration, resulting in poor noise reduction. Utility Model Content

[0004] The main purpose of the utility model is to provide a breast pump main unit and a breast pump, aiming to solve the problem that the existing breast pump main unit has a poor noise reduction effect on the negative pressure pump.

[0005] To achieve the above-mentioned purpose, the present invention proposes a breast pump main unit, which includes a shell assembly, a negative pressure assembly and an elastic member; the shell assembly includes a negative pressure port, which is used to communicate with the milk suction assembly; the negative pressure assembly is arranged in the shell assembly, is connected to the negative pressure port, and is used to provide negative pressure during milk suction; the negative pressure assembly is connected to the shell assembly through the elastic member, and the elastic member is used to buffer the vibration generated by the negative pressure assembly along its circumferential direction.

[0006] In an embodiment of the present invention, the elastic direction of the elastic member is arranged along the vibration direction of the negative pressure assembly.

[0007] In one embodiment of the present invention, the elastic restoring direction of the elastic member is arranged along the vibration direction of the negative pressure assembly.

[0008] In one embodiment of the present invention, the elastic member is sleeved outside the negative pressure component.

[0009] In one embodiment of the present invention, when the negative pressure component is working, the elastic member abuts against or is fixedly connected to at least one side of the negative pressure component along the vibration direction.

[0010] In one embodiment of the present invention, the shell assembly further includes a limiting member. When the negative pressure assembly is working, the elastic member is used to limit the vibration of the negative pressure assembly through the limiting member or be fixedly connected to the limiting member.

[0011] In an embodiment of the present invention, the elastic member includes a spring, and the negative pressure assembly is connected to the housing assembly via the spring.

[0012] In one embodiment of the present invention, the spring is sleeved on the outside of the negative pressure component, and when the negative pressure component is working, the elastic member is used to limit the vibration of the negative pressure component.

[0013] In one embodiment of the present invention, the spring is circular and matches the shape of the negative pressure component.

[0014] The present invention further provides a breast pump, which comprises a milk suction component and a breast pump main unit as described above; the milk suction component is connected to the negative pressure component.

[0015] The breast pump main unit proposed in the present invention includes a shell assembly, a negative pressure assembly, and an elastic member. The negative pressure assembly and the elastic member are both arranged in the shell assembly, wherein the negative pressure assembly is used to provide negative pressure during milk pumping. Since the high-speed rotating motor and transmission assembly of the negative pressure pump will cause the negative pressure pump to generate large vibrations and noise in its circumferential direction when the negative pressure pump is working. Therefore, the present application connects the negative pressure pump to the shell assembly through an elastic member. The elastic member can be arranged on the circumferential side of the negative pressure pump or wrapped on the surface of the negative pressure pump. The elastic member can be a spring, a shrapnel, or other structures. The elastic member effectively absorbs the vibrations generated by the negative pressure pump in the circumferential direction, thereby improving the noise reduction effect of the negative pressure pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is an exploded view of the breast pump main unit provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic structural diagram of an embodiment of a negative pressure pump and spring in a breast pump unit;

[0019] Figure 3 for Figure 1A schematic structural diagram of another embodiment of a negative pressure pump and spring in a breast pump unit.

[0020] Description of Figure Numbers:

[0021] 10. Shell assembly; 11. Shell; 111. Negative pressure port; 12. Limit plate; 121. Limit groove; 122. Avoidance port; 20. Negative pressure assembly; 21. Negative pressure pump; 22. Air pipe; 30. Spring; 31. First section; 32. Second section.

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] The utility model provides a breast pump host.

[0027] Combine Figure 1As shown, in one embodiment of the present invention, the breast pump main unit includes a housing assembly 10, a negative pressure assembly 20 and an elastic member; the housing assembly 10 includes a negative pressure port 111, which is used to communicate with the milk suction assembly; the negative pressure assembly 20 is arranged in the housing assembly 10, is connected to the negative pressure port 111, and is used to provide negative pressure during milk suction; the negative pressure assembly 20 is connected to the housing assembly 10 through the elastic member, and the elastic member is used to buffer the vibration generated by the negative pressure assembly 20 along its circumferential direction.

[0028] In this embodiment, the applicant provides a technical solution to the problem of high noise levels during operation of a negative pressure assembly 20. The negative pressure assembly 20 is used in a breast pump to provide negative pressure during breastfeeding. Breast pumps come in many varieties, and based on the source of negative pressure power, they can be categorized as manual or electric. Based on the mounting method, they can be categorized as wearable or handheld. The inventive concepts of this application can be applied to any of these breast pumps equipped with a negative pressure assembly 20.

[0029] The housing assembly 10 is made of a durable plastic material, such as ABS plastic, to ensure stability and durability during use. A mounting space is formed within the housing assembly 10 for mounting the negative pressure assembly 20, elastic members, and other components. The housing assembly 10 can be hemispherical or quarter-spherical in shape, allowing it to be combined with the suction assembly to form a breast pump that fits the shape of a bra. Alternatively, the housing assembly 10 can be rectangular or have an irregular shape. The breast pump unit can be mounted inside or outside the suction assembly, or it can be separate from the suction assembly, with the negative pressure assembly 20 connected to the suction assembly via an air tube.

[0030] like Figure 1 As shown, the negative pressure assembly 20 in the present application includes a negative pressure pump 21 and an air pipe 22, the housing assembly 10 includes a shell 11 and a limit plate 12, the negative pressure pump 21 is arranged in the housing assembly 10, and is fixed by the limit plate 12, and the two ends of the air pipe 22 are respectively connected to the negative pressure pump 21 and the negative pressure port 111. The negative pressure pump 21 has a high-speed rotating motor and a transmission assembly connected to the output end of the motor. When the negative pressure pump 21 is working, the rotating motor and transmission assembly will cause the negative pressure pump 21 to generate large vibration and noise in its circumferential direction. The elastic member can be a spring 30, a shrapnel or other structure, and the elastic member is arranged on the circumferential side of the negative pressure pump 21 or wrapped on the surface of the negative pressure pump 21. When the negative pressure pump 21 is working, the elastic member can buffer the vibration generated by the negative pressure pump 21 along its circumferential direction through its elastic action, thereby reducing noise and improving the user experience.

[0031] In one embodiment of the present invention, the elastic direction of the elastic member is arranged along the vibration direction of the negative pressure assembly 20 .

[0032] It can be seen from the above embodiments that the elastic member can be an elastic structure such as a spring 30, a spring sheet or a rubber pad. In this embodiment, the elastic member can have one or more elastic directions, and at least one elastic direction is set along the vibration direction of the negative pressure component 20. When the negative pressure component 20 vibrates in the circumferential direction, the elastic member can be compressed or cause the elastic member to deform, so that the elastic member has a buffering effect on the vibration of the negative pressure component 20, thereby reducing the noise generated by the negative pressure component 20.

[0033] In one embodiment of the present invention, the restoring direction of the elastic member is arranged along the vibration direction of the negative pressure assembly 20 .

[0034] The elastic direction refers to the direction in which a material deforms when subjected to an external force, while the recovery direction refers to the direction in which the material returns to its original shape after the external force is removed. For most materials, if they have not undergone plastic deformation, the elastic direction and the recovery direction are consistent, meaning they recover along the original direction of deformation. However, some materials may exhibit anisotropy, meaning that their elastic properties differ in different directions. In addition, factors such as the material's microstructure, phase changes, processing history, and temperature may also affect its elastic and recovery behavior. The material's elastic and recovery properties may vary, resulting in the elastic and recovery directions not being exactly the same.

[0035] Therefore, in this embodiment, the recovery direction of the elastic member is set to be the same as the vibration direction of the negative pressure component 20, so that the elastic member can more effectively utilize the rebound force to offset the vibration of the negative pressure component 20 in the circumferential direction, thereby further improving the buffering effect of the elastic member on the negative pressure component 20.

[0036] In one embodiment of the present invention, the elastic member is sleeved outside the negative pressure assembly 20. The elastic member is sleeved outside the negative pressure assembly 20 so that the elastic member has a buffering effect not only in the circumferential direction of the negative pressure assembly 20, but also in the axial or radial direction, thereby further improving the noise reduction effect of the elastic member on the negative pressure assembly 20.

[0037] In one embodiment, when the negative pressure assembly 20 is in operation, the elastic member abuts or is fixedly connected to at least one side of the negative pressure assembly 20 along the vibration direction. Therefore, when the negative pressure assembly 20 vibrates in the circumferential direction, the elastic member is squeezed, so that the elastic member can more effectively buffer the vibration of the negative pressure assembly 20 in the axial direction.

[0038] In order to more clearly describe the positional relationship between the elastic member and the negative pressure assembly 20 , the present application uses the following embodiments and takes the spring 30 as an example to illustrate the relevant technical solutions.

[0039] Combine Figures 1 to 3As shown, in one embodiment of the present invention, the elastic member is a spring 30 , and at least the outer periphery of the negative pressure pump 21 is connected to the housing assembly 10 through the spring 30 .

[0040] In the present embodiment, elastic member is a spring 30, and its at least periphery is connected with housing assembly 10 by spring 30.Spring 30 has the characteristics of simple structure, low cost, and has a variety of specifications to choose, so that the spring 30 (such as spiral diameter, pitch, wire diameter etc.) of different specifications can be selected according to the weight, volume or shape of negative pressure pump 21.Spring 30 is made of high-quality spring steel, to ensure that it maintains stable elastic properties during long-term use.The periphery of negative pressure pump 21 is connected with housing assembly 10 by spring 30, so that spring 30 better absorbs the circumferential vibration of negative pressure pump 21.In other embodiments, spring 30 can also be installed on the end face of negative pressure pump 21, and the periphery of negative pressure pump 21 and housing assembly 10 are spaced apart, and now spring 30 also can play the effect of buffering negative pressure pump 21 vibration.

[0041] In actual applications, based on the connection between the negative pressure pump 21 and the housing assembly 10 via the spring 30, the spring 30 plays a buffering role. The present application includes at least the following first to third embodiments, and further describes the structure of the spring 30 and the manner in which the spring 30 cooperates with the negative pressure pump 21 through the following three embodiments. It can be understood that the present application provides a technical solution to the problem of high noise caused by circumferential vibration of the negative pressure pump 21, and is not limited to the following three embodiments of the combination of the spring 30 and the negative pressure pump 21.

[0042] First embodiment:

[0043] Combine Figure 2 As shown, in one embodiment of the present invention, the spring 30 is sleeved on the outside of the negative pressure pump 21. When the negative pressure component 20 is working, the elastic member is used to limit the vibration of the negative pressure component 20. The two ends of the spring 30 protrude from the negative pressure pump 21 respectively and are connected to the shell component 10. The outer periphery of the spring 30 is spaced apart from the inner wall of the shell component 10.

[0044] In this embodiment, the spacing D between the spring 30 and the inner wall of the housing assembly 10 is 1 mm ≤ D ≤ 3 mm. This ensures that when the negative pressure pump 21 drives the spring 30 to vibrate, the negative pressure pump 21 and the spring 30 do not contact the housing assembly 10 in their circumferential direction, thus preventing interference with the inner wall of the housing assembly 10. This reduces vibration caused by resonance between the negative pressure pump 21 and the housing assembly 10, improving the user experience and the compactness of the breast pump unit's internal structure. The two ends of the spring 30 are connected to the outer side of the negative pressure pump 21 and the inner wall of the housing assembly 10, respectively, forming a stable structure supporting the negative pressure pump 21. In other embodiments, the spacing D between the spring 30 and the inner wall of the housing assembly 10 can also be set to be greater than 3 mm.

[0045] The shape of the spring 30 is adapted to the shape of the negative pressure pump 21. For example, the spring 30 and the negative pressure pump 21 are both set to be cylindrical, and the spring 30 is sleeved on the outer circumference of the negative pressure pump 21 to increase the contact area between the spring 30 and the negative pressure pump 21, thereby increasing the spring 30's contact with different positions of the negative pressure pump 21. The length of the spring 30 protruding from the outside of the negative pressure pump 21 at both ends will affect the noise reduction effect of the spring 30 on the negative pressure pump 21 and the stability of the negative pressure pump 21. When the length of the spring 30 protruding from the outside of the negative pressure pump 21 is short, the spring 30 has a poor buffering effect on the vibration of the negative pressure pump 21. When the length of the spring 30 protruding from the outside of the negative pressure pump 21 is long, the spring 30 will fall under the action of gravity of the negative pressure pump 21, resulting in poor stability of the negative pressure pump 21. Therefore, the present application sets the total length of the spring 30 to L1, and the length of the spring 30 protruding from the outside of the negative pressure pump 21 to L2, where 0.1*L1≤L2≤0.5*L1.

[0046] Furthermore, the negative pressure pump 21 in the present application has a two-stage structure, in which the diameters of the two sections are different. Therefore, the spring 30 in the present application is also designed to be two-stage. The spring 30 includes a first section 31 and a second section 32 arranged in sequence along the axial direction of the negative pressure pump 21, wherein the diameter of the first section 31 is smaller than the diameter of the second section 32. The first section 31 and the second section 32 are respectively matched with the two-stage negative pressure pump 21 structure to ensure that the spring 30 has a larger contact area with the negative pressure pump 21.

[0047] Second embodiment:

[0048] Combine Figure 3 As shown, in one embodiment of the present invention, two springs 30 are provided, and the two springs 30 are respectively mounted on the two ends of the negative pressure pump 21. The ends of the two springs 30 facing away from the negative pressure pump 21 are both connected to the shell assembly 10, and the outer periphery of the negative pressure pump 21 is spaced apart from the inner wall of the shell assembly 10.

[0049] In this embodiment, two springs 30 are provided, which are respectively sleeved on the two ends of the negative pressure pump 21. The specifications of the two springs 30 can be the same or different. For example, the two springs 30 can be designed to have specifications that match the two ends of the negative pressure pump 21 according to the size, shape or weight of the negative pressure pump 21. Therefore, this structural design improves the applicability of the spring 30 to different negative pressure pumps 21. In addition, sleeved on the ends of the negative pressure pump 21, compared to sleeved on the outer peripheral side of the negative pressure pump 21, the convenience of the spring 30 and the negative pressure pump 21 can be improved.

[0050] Furthermore, the spacing D between the outer periphery of the negative pressure pump 21 and the inner wall of the housing assembly 10 can be designed to be between 1 mm and 3 mm to avoid interference with the inner wall of the housing assembly 10. Furthermore, the spring 30 can have identical connection structures to the housing assembly 10 at both ends, or it can be designed with different connection structures, such as a hook at one end and a ring at the other, to accommodate different installation requirements. This diverse design allows the breast pump to accommodate different models of negative pressure pumps 21, improving the product's versatility and applicability.

[0051] Third embodiment:

[0052] In one embodiment of the present invention, at least two springs 30 are provided. One end of the at least two springs 30 is connected to the circumference of the negative pressure pump 21, and the other end is connected to the housing assembly 10. In other words, the springs 30 extend in the radial direction of the negative pressure pump 21. Therefore, when the negative pressure pump 21 vibrates circumferentially, the springs 30 are compressed along their extension direction. This design effectively controls the vibration of the negative pressure pump 21 during operation, improving the stability and noise reduction of the breast pump unit. The at least two springs 30 are spaced apart along the circumference of the negative pressure pump 21, or along the axial direction of the negative pressure pump 21.

[0053] In one embodiment of the present invention, the housing assembly 10 further includes a limiting member. When the negative pressure assembly 20 is working, the elastic member is used to limit the vibration of the negative pressure assembly 20 through the limiting member or is fixedly connected to the limiting member.

[0054] Combine Figure 1 As shown, the shell assembly 10 includes an outer shell 11 and a limit member, the limit member includes two limit plates 12 arranged in the outer shell 11, the two limit plates 12 are arranged at intervals, the negative pressure pump 21 is located between the two limit plates 12, and both ends are connected to the two limit plates 12 respectively through springs 30.

[0055] In this embodiment, the limit plate 12 is used to provide installation space for fixing the spring 30 and the negative pressure pump 21. The limit plate 12 is made of high-strength plastic or metal material to ensure its stability and durability during use. The limit plate 12 can be an integrally molded structure with the housing 11, or it can be a detachable connection structure. The present application preferably sets the two limit plates 12 to be parallel to each other, and the end of the spring 30 facing the limit plate 12 is perpendicular to the limit plate 12 and connected thereto, so as to form a stable structure for supporting and buffering the negative pressure pump 21. At the same time, there is a large space between the two limit plates 12, so that the spring 30 and the negative pressure pump 21 can be set between the two limit plates 12; in addition, the space between the two limit plates 12 also makes the negative pressure pump 21 and the shell assembly 10 spaced apart, avoiding the negative pressure pump 21 and the shell assembly 10 from directly contacting and generating noise. An air pipe 22 connected to the milking assembly is provided on the peripheral side of the negative pressure pump 21 , so the spaced limiting plates 12 also improve the convenience of connecting the air pipe with the negative pressure pump 21 .

[0056] Combine Figure 1 As shown, in one embodiment of the present invention, each limit plate 12 is provided with a limit groove 121 on one side facing the negative pressure pump 21, and the two ends of the spring 30 facing away from the negative pressure pump 21 are respectively compressed and limited in the two limit grooves 121, so that the spring 30 and the limit plate 12 can be detachably connected.

[0057] In this embodiment, the inner side of the limiting plate 12 is designed with a limiting groove 121 for accommodating the two ends of the spring 30. The spring 30 is squeezed and contracted by the two limiting plates 12 and is retained within the limiting groove 121, thereby achieving a detachable connection between the spring 30 and the limiting plate 12. This design facilitates the installation and replacement of the spring 30 and improves the maintenance and repair efficiency of the breast pump main unit.

[0058] The size and shape of the limiting groove 121 are adjusted according to the size and shape of the spring 30 to ensure that the spring 30 can be stably installed in the limiting groove 121. For example, in the present application, the spring 30 is configured to be cylindrical, so the limiting groove 121 is also circular in shape. Of course, the limiting groove 121 can also be designed to be semicircular and disposed on the side of the limiting plate 12 away from the housing 11, so that there is more space to install the spring 30 and the negative pressure pump 21 between the two limiting plates 12.

[0059] Furthermore, in order to ensure the connection stability between the spring 30 and the limit plate 12, the two ends of the spring 30 and the limit plate 12 can also be designed as a connection structure with a self-locking function, such as a threaded connection using a threaded connector, or a card slot and a card block card connection.

[0060] Combine Figure 1As shown, in one embodiment of the present invention, at least one limiting plate 12 is provided with a relief opening 122 , and the cable of the negative pressure pump 21 passes through the relief opening 122 and is connected to a power source.

[0061] One end of the negative pressure pump 21 is usually provided with a connection end protruding from its end surface. The negative pressure pump 21 is electrically connected to the power supply by connecting the power supply cable to the connection end of the negative pressure pump 21.

[0062] In this embodiment, the design of the escape opening 122 facilitates the passage of the connection end and power supply cable of the negative pressure pump 21, thereby connecting the negative pressure pump 21 to the power source. The size and shape of the escape opening 122 can be adjusted according to the size and shape of the cable of the negative pressure pump 21 to ensure that the cable can pass through the escape opening 122 smoothly. The edges of the escape opening 122 can be designed with chamfered or rounded corners to reduce the possibility of cable wear.

[0063] In one embodiment of the present invention, the breast pump main unit further includes a flexible member, which is disposed between the negative pressure pump 21 and the elastic member.

[0064] In this embodiment, the flexible member can be made of silicone, rubber, foam pad or other soft materials. The flexible member is designed to further absorb and isolate the vibration generated by the negative pressure pump 21, thereby achieving a secondary noise reduction effect, further reducing the noise of the breast pump host and improving user comfort.

[0065] Furthermore, the surface of the flexible member can be designed with a concave-convex structure to increase friction between it, the negative pressure pump 21, and the elastic member, thereby improving the stability of the connection. This design not only improves the noise reduction effect of the breast pump body, but also enhances its overall stability and durability. In other embodiments, the flexible member can also be positioned between the negative pressure pump 21 and the housing assembly 10, that is, the negative pressure pump 21 is connected to the housing assembly 10 via both the elastic member and the flexible member.

[0066] like Figures 1 to 3 As shown, in one embodiment of the present invention, spring 30 is circular and conforms to the shape of negative pressure assembly 20. Because spring 30 conforms to the shape of negative pressure assembly 20, there is more contact area between negative pressure assembly 20 and spring 30, thereby improving the spring 30's ability to cushion the vibrations of negative pressure assembly 20 and the contact stability between the spring 30 and negative pressure assembly 20. This ensures a strong connection between the spring 30 and negative pressure assembly 20 and improves the long-term reliability of the spring 30's noise reduction effect on negative pressure assembly 20. In other embodiments, spring 30 may also have a square, oval, or other shape.

[0067] The present invention also provides a breast pump comprising a milking assembly and a main unit. The specific structure of the main unit is similar to that of the above-described embodiments. Since the breast pump utilizes all the technical solutions of all the above-described main unit embodiments, it at least possesses all the beneficial effects brought about by the technical solutions of the above-described embodiments, which will not be described in detail here. The milking assembly is connected to a negative pressure pump 21. The milking assembly includes at least a milking container and a breast shield. The breast shield is configured to cover the breast and is connected to the milking container. A negative pressure element is connected to the breast shield or the milking container to provide negative pressure during milking. Under the action of the negative pressure, milk flows from the breast shield into the milking container.

[0068] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A breast pump host, characterized in that: The breast pump host comprises: A housing assembly, the housing assembly comprising a negative pressure port, the negative pressure port being configured to communicate with the milk suction assembly; a negative pressure assembly, the negative pressure assembly being disposed in the housing assembly, the negative pressure assembly being connected to the negative pressure port, and being used to provide negative pressure during milk extraction; and An elastic member, the negative pressure assembly is connected to the shell assembly through the elastic member, and the elastic member is used to buffer the vibration generated by the negative pressure assembly along its circumference.

2. The breast pump host according to claim 1, characterized in that: The elastic direction of the elastic member is arranged along the vibration direction of the negative pressure component.

3. The breast pump host according to claim 1, characterized in that: The elastic restoring direction of the elastic member is arranged along the vibration direction of the negative pressure component.

4. The breast pump host according to claim 2, characterized in that: The elastic member is sleeved outside the negative pressure component.

5. The breast pump host according to claim 2, characterized in that: When the negative pressure component is working, the elastic member abuts against or is fixedly connected to at least one side of the negative pressure component along the vibration direction.

6. The breast pump host according to claim 2, characterized in that: The housing assembly further includes a limiting member. When the negative pressure assembly is working, the elastic member is used to limit the vibration of the negative pressure assembly through the limiting member or by being fixedly connected to the limiting member.

7. The breast pump according to any one of claims 1 to 6, wherein: The elastic member includes a spring, and the negative pressure assembly is connected to the housing assembly via the spring.

8. The breast pump main unit according to claim 7, characterized in that: The spring is sleeved on the outside of the negative pressure component. When the negative pressure component is working, the elastic member is used to limit the vibration of the negative pressure component.

9. The breast pump host according to claim 7, characterized in that: The spring is circular and matches the shape of the negative pressure component.

10. A breast pump, characterized in that: The breast pump comprises a milk suction component and a breast pump main unit according to any one of claims 1 to 9; the milk suction component is connected to the negative pressure component.

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