Manual breast pump

Abstract

The utility model discloses a manual breast pump, and relates to the technical field of breast pumps, the manual breast pump comprises a breast pumping shield, a milk storage container, a negative pressure driving diaphragm and a manual driving piece, one side of the breast pumping shield is used for fitting a breast, and a through hole for accommodating a nipple is formed in the other side of the breast pumping shield; a milk storage cavity is defined by the milk storage container and the milk sucking shield and communicated with the through hole, and an opening is formed in the side, away from the milk sucking shield, of the milk storage container. The negative pressure driving diaphragm is arranged in the milk storage cavity, and the edge of the negative pressure driving diaphragm is hermetically connected with the opening; one end of the manual driving piece is connected with the middle of the negative pressure driving diaphragm, and the other end of the manual driving piece can be driven to swing so as to drive the negative pressure driving diaphragm to vibrate in a reciprocating mode to apply negative pressure to the milk storage cavity. The manual breast pump provided by the utility model can stimulate mammary areola during manual breast pumping, so that the breast pumping efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of breast pumps, in particular to a manual breast pump. Background Art

[0002] A breast pump is a tool used to express breast milk accumulated in the mammary glands. It is generally used when the baby is unable to suck breast milk directly, or when the mother is away from the baby but still wants to breastfeed.

[0003] Most existing manual breast pumps can only generate negative pressure to suck out breast milk from the breast by hand, but the sucking efficiency is low. Utility Model Content

[0004] The main purpose of the utility model is to provide a manual breast pump, which is designed to stimulate the areola while manually sucking milk, thereby improving the efficiency of milk sucking.

[0005] To achieve the above-mentioned objectives, the manual breast pump proposed by the present invention includes a breast shield, a milk storage container, a negative pressure driven diaphragm and a manual driving member, wherein one side of the breast shield is used to fit the breast, and the other side forms a through hole for accommodating the nipple; the milk storage container and the breast shield enclose a milk storage chamber, which is communicated with the through hole, and an opening is formed on the side of the milk storage container away from the breast shield; the negative pressure driven diaphragm is arranged in the milk storage chamber, and the edge of the negative pressure driven diaphragm is sealed with the opening; one end of the manual driving member is connected to the middle part of the negative pressure driven diaphragm, and the other end of the manual driving member can be driven to swing, so as to drive the negative pressure driven diaphragm to vibrate reciprocatingly to apply negative pressure to the milk storage chamber, thereby guiding breast milk to flow out of the breast and be stored in the milk storage chamber.

[0006] In one embodiment, a support portion for supporting the manual drive member is provided on the outer side of the milk storage container, and the manual drive member rotates and swings relative to the milk storage container about the support portion as an axis.

[0007] In one embodiment, the manual breast pump further comprises a support cover, wherein at least a portion of the support cover is fixed to the outside of the milk storage container, the support cover is provided with a support portion for supporting the manual driving member, and the manual driving member rotates and swings relative to the support cover about the support portion as an axis.

[0008] In one embodiment, at least one end of the manual driving member that can be driven to swing is provided on a side of the milk storage container.

[0009] In one embodiment, the manual drive member includes a connecting portion and an extruding portion connected in sequence, the connecting portion is connected to the negative pressure drive diaphragm, the extruding portion is connected to the connecting portion at an angle, and the extruding portion is bent toward the breast shield.

[0010] In one embodiment, one of the end of the connecting portion away from the squeezing portion and the surface of the negative pressure driven diaphragm facing away from the milk storage chamber is provided with a latching protrusion, and the other is provided with a latching groove, and the latching protrusion is engaged with the latching groove to connect the connecting portion to the negative pressure driven diaphragm.

[0011] In one embodiment, when the manual breast pump is in use, the two opposite sides of the milk storage container in the horizontal direction are defined as a first side wall and a second side wall, and the end surface of the squeezing portion is located in the middle of the first side wall of the milk storage container.

[0012] In one embodiment, a groove sunken toward the milk storage cavity is formed in the middle of the first side wall and the second side wall of the milk storage container, and the groove of the first side wall is arranged corresponding to the end surface of the extrusion portion.

[0013] In one embodiment, a accommodating groove is formed on the outer peripheral wall of the milk storage container, and two opposite groove walls of the accommodating groove are open, one of which is communicated with the opening, and the other end portion of the connecting portion of the manual drive member is disposed in the accommodating groove.

[0014] In one embodiment, the manual breast pump further comprises a negative pressure cover, which is made of a hard material and covers the opening and the notch of the accommodating groove.

[0015] In one embodiment, a limiting hole is provided on one side of the negative pressure cover, and the manual driving member passes through the limiting hole. The manual driving member can rotate with the edge of the limiting hole as a fulcrum.

[0016] In one embodiment, an extension portion is formed on one side of the negative pressure cover away from the other end of the manual drive member, and the extension portion is attached to the second side wall of the milk storage container to prevent the second side wall from being deformed.

[0017] In one embodiment, the breast shield, the milk storage container and the negative pressure driven diaphragm are an integrally formed flexible deformable component.

[0018] The manual breast pump proposed in this utility model includes a breast shield, a milk storage container, a negative pressure drive assembly, and a manual drive unit. The breast shield has one side adapted to fit against the breast, and the other side has a through hole formed thereon, communicating with a milk storage cavity within the milk storage container. The milk storage container has an opening formed on the side facing away from the breast shield. The milk storage container is made of a flexible, deformable material, and a negative pressure drive diaphragm is sealedly connected to the opening of the milk storage container. One end of the manual drive unit is connected to the negative pressure drive diaphragm, and driving the other end of the manual drive unit can cause the negative pressure drive diaphragm to deform, thereby applying negative pressure to the milk storage cavity, guiding breast milk to flow out of the breast and be stored in the milk storage cavity. Simultaneously, the other end of the manual drive unit can press against the side wall of the milk storage container, causing it to elastically deform and press against the side of the areola, thereby promoting lactation. The manual breast pump proposed in this utility model can stimulate lactation near the areola while simultaneously expressing milk, enriching the functionality of the manual breast pump and improving milking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 This is a structural diagram of an embodiment of a manual breast pump provided by the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the cross section at AA in the middle;

[0022] Figure 3 A right side view of another embodiment of the manual breast pump provided by the present invention;

[0023] Figure 4 This is a front view of another embodiment of the manual breast pump provided by the present invention.

[0024] Description of Figure Numbers:

[0025] 100. Manual breast pump; 1. Breast shield; 11. Through hole; 2. Milk storage container; 21. Milk storage chamber; 22. Opening; 23. Recess; 24. Receiving slot; 3. Negative pressure drive diaphragm; 31. Snap-in slot; 4. Manual drive element; 41. Connecting portion; 411. Snap-in protrusion; 42. Extrusion portion; 5. Negative pressure cover; 51. Limiting hole; 52. Extension portion.

[0026] 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

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Most existing manual breast pumps can only generate negative pressure to suck out breast milk from the breast by hand, but the sucking efficiency is low.

[0031] The utility model provides a manual breast pump, which is intended to stimulate the areola while manually sucking milk, thereby improving the efficiency of milk sucking.

[0032] See also Figures 1 to 4In one embodiment of the present invention, the manual breast pump 100 includes a breast shield 1, a milk storage container 2, a negative pressure driven diaphragm 3 and a manual driving member 4. One side of the breast shield 1 is used to fit the breast, and the other side forms a through hole 11 for accommodating the nipple; the milk storage container 2 and the breast shield 1 enclose a milk storage chamber 21, which is connected to the through hole 11, and an opening 22 is formed on the side of the milk storage container 2 away from the breast shield 1; the negative pressure driven diaphragm 3 is provided in the milk storage chamber 21, and the edge of the negative pressure driven diaphragm 3 is sealed with the opening 22; one end of the manual driving member 4 is connected to the middle part of the negative pressure driven diaphragm 3, and the other end of the manual driving member 4 can be driven to swing, so as to drive the negative pressure driven diaphragm 3 to vibrate back and forth to apply negative pressure to the milk storage chamber 21, thereby guiding breast milk to flow out of the breast and be stored in the milk storage chamber 21.

[0033] In this embodiment, a breast shield 1 is designed to conform to the user's breasts and is shaped like a funnel or hemisphere to fit snugly. To enhance the user experience, the breast shield 1 is made of a soft, skin-friendly material, such as silicone or latex, for increased comfort and less likely to cause skin allergies. A milk storage container 2 and the breast shield 1 enclose a milk storage cavity 21, which communicates with the milk extraction channel and is used to collect milk. The milk storage container 2 can be constructed in a bowl-like structure and made of a flexible, non-toxic material, such as silicone or medical rubber, that does not contaminate the milk. The negative pressure-driven diaphragm 3 can be bowl-shaped or film-shaped and made of a flexible, deformable material, such as silicone or rubber. A negative pressure opening 22 is defined in the wall of the milk storage container 2, away from the breast shield 1. The edge of the negative pressure-driven diaphragm 3 is sealed to the negative pressure opening 22. Vibration of the negative pressure-driven diaphragm 3 applies negative pressure to the milk storage cavity 21, thereby forcing milk to flow from the breast and be stored in the milk storage cavity 21. The manual drive member 4, which can be a rod, drives the negative pressure-driven diaphragm 3 to reciprocate by pulling or rotating it, thereby applying negative pressure to the milk storage cavity 21, guiding breast milk to flow from the breast and be stored in the milk storage cavity 21. The other end of the manual drive member 4 presses against the milk storage container 2, causing it to deform and contact the side of the areola, thereby stimulating lactation.

[0034] The manual breast pump 100 proposed in the present invention includes a breast shield 1, a milk storage container 2, a negative pressure drive assembly, and a manual drive member 4. The breast shield 1 has one side for attaching to the breast, and a through hole 11 formed on the other side for communicating with a milk storage chamber 21 within the milk storage container 2. The milk storage container 2 has an opening 22 formed on the side away from the breast shield 1. The milk storage container 2 is made of a flexible, deformable material. A negative pressure drive diaphragm 3 is sealedly connected to the opening 22 of the milk storage container 2. One end of the manual drive member 4 is connected to the negative pressure drive diaphragm 3. Driving the other end of the manual drive member 4 can cause the negative pressure drive diaphragm 3 to deform, thereby applying negative pressure to the milk storage chamber 21, guiding breast milk to flow out of the breast and be stored in the milk storage chamber 21. Simultaneously, the other end of the manual drive member 4 can press against the side wall of the milk storage container 2, causing it to elastically deform and press against the side of the areola, thereby promoting lactation. The manual breast pump 100 proposed in the present invention can stimulate lactation near the areola while manually pumping milk, thereby enriching the functions of the manual breast pump 100 and improving milk pumping efficiency.

[0035] In the embodiment of the present invention, a support portion for supporting the manual drive member 4 is provided on the outer side of the milk storage container 2 , and the manual drive member 4 rotates and swings relative to the milk storage container 2 with the support portion as an axis.

[0036] In this embodiment, a support portion for supporting the manual drive member 4 is provided on the outer side of the milk storage container 2. The support portion may be a limiting hole 51, a rotating shaft bracket or other structure, so that the manual drive member 4 can rotate and swing relative to the milk storage container 2 about the support portion as an axis, making the rotation of the manual drive member 4 more stable and reliable, thereby driving the negative pressure drive diaphragm 3 to reciprocate, and the generated negative pressure will also be more stable.

[0037] In an embodiment of the present invention, the manual breast pump 100 further comprises a support cover, at least a portion of which is fixed to the outside of the milk storage container 2, and the support cover is provided with a support portion for supporting the manual drive member 4, and the manual drive member 4 rotates and swings relative to the support cover with the support portion as an axis.

[0038] In this embodiment, the support portion is not directly provided on the milk storage container 2, but is indirectly provided on the support cover that covers the milk storage container 2, so that the manual drive member 4 can rotate and swing relative to the milk storage container 2 with the support portion as the axis, making the rotation of the manual drive member 4 more stable and reliable, thereby driving the amplitude and range of the reciprocating motion of the negative pressure-driven diaphragm 3 to be more uniform, and the generated negative pressure will also be more stable, making the milk pumping process smoother.

[0039] In the embodiment of the present invention, at least one end of the manual driving member 4 that can be driven to swing is provided on one side of the milk storage container 2 .

[0040] In this embodiment, the end of the manual driving member 4 that can be driven to swing is located on one side of the milk storage container 2. Through the end of the manual driving member 4 that can be driven to swing, it abuts against the outer wall of the milk storage container 2 and then abuts against the areola, thereby stimulating lactation and improving milk suction efficiency.

[0041] In an embodiment of the present invention, the manual drive member 4 includes a connecting portion 41 and an extrusion portion 42 connected in sequence, the connecting portion 41 is connected to the negative pressure drive diaphragm 3, the extrusion portion 42 is connected to the connecting portion 41 at an angle, and the extrusion portion 42 is bent toward the direction of the breast shield 1.

[0042] In this embodiment, the manual actuator 4 comprises a connecting portion 41 and a squeezing portion 42, which are connected in sequence and arranged at an angle. The connecting portion 41 is used to connect to the negative pressure-driven diaphragm 3, while the squeezing portion 42 is bent toward the breast shield 1. This allows the squeezing portion 42 to abut against the milk reservoir 2 when pressed, indirectly stimulating the area near the areola, promoting milk discharge and improving milk extraction efficiency. Furthermore, the squeezing portion 42 can be worn inside a bra, enhancing the discreet use of the manual breast pump 100.

[0043] In an embodiment of the present utility model, one of the end of the connecting portion 41 away from the squeezing portion 42 and the surface of the negative pressure driven diaphragm 3 facing away from the milk storage chamber 21 is provided with a latching protrusion 411, and the other end is provided with a latching groove 31. The latching protrusion 411 is engaged with the latching groove 31 to connect the connecting portion 41 to the negative pressure driven diaphragm 3.

[0044] In this embodiment, the connection portion 41 and the negative pressure driving diaphragm 3 are connected as a whole by an interference fit or snap connection between the latching protrusion 411 and the latching groove 31, so that the negative pressure driving diaphragm 3 can reciprocate under the drive of the connection portion 41, thereby applying negative pressure to the milk storage chamber 21. It is understood that in other embodiments, a stopper may be provided at one end of the connection portion 41, the stopper passing through the negative pressure driving diaphragm 3 and connected to the negative pressure driving diaphragm 3, and the stopper drives the negative pressure driving diaphragm 3 to reciprocate.

[0045] In the embodiment of the present invention, when the manual breast pump 100 is in use, the two opposite sides of the milk storage container 2 in the horizontal direction are defined as the first side wall and the second side wall, and the end surface of the squeezing portion 42 is located in the middle of the first side wall of the milk storage container 2.

[0046] In this embodiment, when the manual breast pump 100 is in use, the two opposite sides of the milk storage container 2 in the horizontal direction are defined as the first side wall and the second side wall, respectively. The end surface of the squeezing portion 42 is located in the middle of the first side wall of the milk storage container 2, so that the end surface of the squeezing portion 42 can abut against the middle of the first side wall of the milk storage container 2, and then abut against the side of the areola, so as to achieve the effect of stimulating lactation.

[0047] In the embodiment of the present invention, a groove 23 is formed in the middle of the first side wall and the second side wall of the milk storage container 2, and is recessed toward the milk storage cavity 21. The groove 23 of the first side wall is arranged corresponding to the end surface of the extrusion portion 42.

[0048] In this embodiment, an inwardly concave groove 23 is formed in the middle of the first side wall and the second side wall of the milk storage container 2. The groove 23 is arranged corresponding to the end surface of the squeezing portion 42. The end surface of the squeezing portion 42 will first abut against the groove 23, then drive the milk storage container 2 to deform, and finally abut against the side of the areola to achieve the effect of stimulating lactation. The effect of providing the groove 23 is that the side wall of the milk storage container 2 can touch the side of the areola by pressing only a short distance, which is more labor-saving.

[0049] In the embodiment of the present invention, a receiving groove 24 is formed on the outer peripheral wall of the milk storage container 2. Two opposite groove walls of the receiving groove 24 are open, one of which is connected to the opening 22. The other end portion of the connecting portion 41 of the manual driving member 4 is disposed in the receiving groove 24.

[0050] In this embodiment, a receiving groove 24 is defined on the outer peripheral wall of the milk storage container 2. Opposite walls of the receiving groove 24 are open and communicate with the opening 22. The other end of the connecting portion 41 of the manual-actuating member 4 is disposed within the receiving groove 24. Pressing the squeezing portion 42 causes the other end of the connecting portion 41 to rotate relative to the receiving groove 24, thereby driving one end of the connecting portion 41 and the negative-pressure-driven diaphragm 3 upward, thereby applying negative pressure to the milk storage chamber 21 and guiding breast milk to flow from the breast and be stored in the milk storage chamber 21. In a preferred embodiment, the milk storage container 2 has two symmetrical receiving grooves 24, allowing the manual-actuating member 4 to be adjusted in position according to the user's usage habits, such as being placed on the left or right side, for greater flexibility.

[0051] In the embodiment of the present invention, the manual breast pump 100 further includes a negative pressure cover 5 . The negative pressure cover 5 is made of a hard material and covers the opening 22 and the notch of the receiving groove 24 .

[0052] In this embodiment, the manual breast pump 100 is equipped with a rigid negative pressure cover 5. The negative pressure cover 5 can be made of a rigid plastic or a lightweight metal, such as an aluminum alloy or titanium alloy. The negative pressure cover 5 fits over the opening 22 and the notch of the receiving slot 24 in the milk storage container 2, enclosing the negative pressure drive diaphragm 3 to form a negative pressure chamber and limiting the rotational range of the manual drive member 4. A plug-in plate is provided on the surface of the negative pressure cover 5 facing the milk storage container 2. The plug-in plate has the same shape as the opening 22 and plugs into the opening 22, confining the negative pressure drive diaphragm 3 within the negative pressure chamber.

[0053] In the embodiment of the present invention, a limiting hole 51 is opened on one side of the negative pressure cover 5 , and the manual driving member 4 passes through the limiting hole 51 . The manual driving member 4 can rotate with the edge of the limiting hole 51 as a fulcrum.

[0054] In this embodiment, a limiting hole 51 is provided on the side of the negative pressure cover 5, and the manual driving member 4 passes through the limiting hole 51, so that the manual driving member 4 can rotate with the edge of the limiting hole 51 as a support point, making the rotation of the manual driving member 4 more stable, thereby improving the stability and durability of the manual breast pump 100.

[0055] In the embodiment of the present invention, an extension portion 52 is formed on one side of the negative pressure cover 5 away from the other end of the manual drive member 4. The extension portion 52 is attached to the second side wall of the milk storage container 2 to prevent the second side wall from being deformed.

[0056] In this embodiment, the negative pressure cover 5 extends toward the other end, away from the manual actuator 4, to form an extension 52. This extension 52 fits against the second sidewall of the milk storage container 2, protecting the milk storage container 2 from being squeezed when the manual actuator 4 is pressed. This prevents the milk stored in the milk storage container 2 from being squeezed out, potentially contaminating or wasting the milk. The extension 52 has a receiving groove 24 formed on its surface, which aligns with the groove 23 on the second sidewall. This groove is designed to accommodate a finger, facilitating squeezing and application of force by the user.

[0057] In the embodiment of the present invention, the breast shield 1, the milk storage container 2 and the negative pressure driven diaphragm 3 are an integrally formed flexible deformable component.

[0058] In this embodiment, the breast shield 1, the milk storage container 2 and the negative pressure driven diaphragm 3 are integrally formed, which can improve the airtightness of the manual breast pump 100 and the milk extraction efficiency. Moreover, the materials are all flexible materials, such as silicone or rubber.

[0059] The above are merely exemplary embodiments of the present invention and are not intended to 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 applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A manual breast pump, characterized in that: include: A breast shield, wherein one side of the breast shield is adapted to fit the breast, and the other side of the breast shield is provided with a through hole for accommodating the nipple; a milk storage container, wherein the milk storage container and the breast shield enclose a milk storage cavity, the milk storage cavity is communicated with the through hole, and an opening is formed on a side of the milk storage container away from the breast shield; A negative pressure driven diaphragm, the negative pressure driven diaphragm is provided in the milk storage chamber, and the edge of the negative pressure driven diaphragm is sealedly connected to the opening; as well as A manual drive member, one end of which is connected to the middle part of the negative pressure drive diaphragm, and the other end of which can be driven to swing, so as to drive the negative pressure drive diaphragm to vibrate back and forth to apply negative pressure to the milk storage chamber, thereby guiding breast milk to flow out of the breast and be stored in the milk storage chamber.

2. The manual breast pump according to claim 1, wherein: A supporting portion for supporting the manual driving member is provided on the outer side of the milk storage container, and the manual driving member rotates and swings relative to the milk storage container with the supporting portion as an axis.

3. The manual breast pump according to claim 2, wherein: The manual breast pump further comprises a support cover, at least a portion of which is fixed to the outside of the milk storage container, the support cover being provided with a support portion for supporting the manual drive member, and the manual drive member being rotatable and swingable relative to the support cover about the support portion as an axis.

4. The manual breast pump according to claim 3, wherein: At least one end of the manual driving member that can be driven to swing is arranged on one side of the milk storage container.

5. The manual breast pump according to claim 1, wherein: The manual driving member includes a connecting portion and an extruding portion connected in sequence, the connecting portion is connected to the negative pressure driving diaphragm, the extruding portion is connected to the connecting portion at an angle, and the extruding portion is bent toward the breast shield.

6. The manual breast pump according to claim 5, wherein: One of the end of the connecting portion away from the squeezing portion and the surface of the negative pressure driven diaphragm away from the milk storage chamber is provided with a latching protrusion, and the other is provided with a latching groove, and the latching protrusion is engaged with the latching groove to connect the connecting portion to the negative pressure driven diaphragm.

7. The manual breast pump according to claim 5, wherein: When the manual breast pump is in use, two opposite sides of the milk storage container in a horizontal direction are respectively a first side wall and a second side wall, and the end surface of the squeezing portion is located in the middle of the first side wall of the milk storage container.

8. The manual breast pump according to claim 6, wherein: A groove sunken toward the milk storage cavity is formed in the middle of the first side wall and the second side wall of the milk storage container, and the groove of the first side wall is arranged corresponding to the end surface of the extrusion part.

9. The manual breast pump according to claim 7, wherein: The outer wall of the milk storage container is provided with a receiving groove, and two opposite groove walls of the receiving groove are open, one of which is communicated with the opening, and the other end portion of the connecting portion of the manual drive member is arranged in the receiving groove.

10. The manual breast pump according to claim 9, wherein: The manual breast pump further comprises a negative pressure cover, which is made of a hard material and covers the opening and the notch of the accommodating groove.

11. The manual breast pump according to claim 10, wherein: A limiting hole is provided on one side of the negative pressure cover, and the manual driving member passes through the limiting hole. The manual driving member can rotate with the edge of the limiting hole as a fulcrum.

12. The manual breast pump according to claim 10, wherein: An extension portion is formed on one side of the negative pressure cover away from the other end of the manual drive member, and the extension portion is fitted to the second side wall of the milk storage container to prevent the second side wall from being deformed.

13. The manual breast pump according to any one of claims 1 to 12, characterized in that The breast shield, the milk storage container and the negative pressure driven diaphragm are an integrally formed flexible deformable component.

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