A compact breast pump

Abstract

The utility model discloses a compact breast pump, including negative pressure generating mechanism and from going to the coaxial heart setting horn cover, cover seat, diaphragm and connecting seat in proper order, the horn cover with cover seat integrated molding or horn cover with cover seat can detachable connection, the side of cover seat away from horn cover with one side of connecting seat can detachable connection, be provided with the installation groove for accommodating diaphragm between cover seat with connecting seat, the lower end of connecting seat is connected with the installation seat who sets up, the installation seat can detachable connection has the milk collection container. Horn cover, cover seat, diaphragm and connecting seat four in the utility model are coaxial heart setting, cancel three -way pipe structure on one side, adopt split type cover seat and connecting seat, and it is convenient to split and clean, prevent hiding dirt, reduce the space of breast pump internal negative pressure chamber on the other side, thereby reduce the overall volume of breast pump, and it is convenient to carry personally.

Description

Technical Field

[0001] This utility model relates to the field of breast pump technology, specifically to a compact breast pump. Background Technology

[0002] A breast pump is a tool to assist breastfeeding. When a mother is unable to have her baby suckle, the breast pump simulates the baby's sucking action, thereby promoting milk secretion and expression. Traditional breast pumps generally have a three-way valve structure. For example, Chinese utility model patent CN206852843U discloses a manual and electric dual-mode breast pump, including a milk collection cup, a milk storage bottle, and a three-way valve. Port A of the three-way valve is sealed to the milk collection cup; port B of the three-way valve is sealed to the cap of the milk storage bottle; the cap has a connecting tube; the connecting tube connects the three-way valve to the milk storage bottle; the connecting tube port inside the milk storage bottle has a one-way valve; the cap is connected to the milk storage bottle; and port C of the three-way valve connects to a negative pressure generating device for creating negative pressure at the milk collection cup. This negative pressure generating device can be either a mechanical or an electric negative pressure generating device, and the two can be converted between each other. For example, Chinese utility model patent CN204106665U discloses a breast pump device with massage function, including a breast pump body, a milk container, and an operating handle. The breast pump body also has an exhaust chamber, which is separated from the negative pressure generating chamber by a diaphragm. The driven end of the operating handle is connected to the diaphragm by a pull rod. The pull rod causes the diaphragm to deform, so that the negative pressure generating chamber generates negative pressure while the exhaust chamber generates positive pressure. A soft massage cover is fitted inside the flared opening of the collection part. A certain gap is left between the massage cover and the collection part to form a massage air pressure chamber. The exhaust chamber is connected to the massage air pressure chamber through a pipe.

[0003] All of the above-mentioned breast pumps are equipped with a three-way tube structure. On the one hand, the bends of the three-way tube structure are difficult to clean, which can easily lead to dirt and bacteria growth. On the other hand, the internal negative pressure chamber of the breast pump is relatively large, resulting in a large overall size of the breast pump, which is not convenient to carry around for use. Utility Model Content

[0004] In view of this, the purpose of this utility model is to overcome the problems existing in the prior art and provide a compact breast pump.

[0005] To achieve the above-mentioned technical objectives and effects, this invention provides a compact breast pump that can be used both manually and electrically. The specific technical solution is as follows: A compact breast pump includes a negative pressure generating mechanism and a horn cover, a cover base, a diaphragm, and a connecting base arranged coaxially from front to back. The horn cover and the cover base are integrally formed or detachably connected. The side of the cover base away from the horn cover is detachably connected to the side of the connecting base. A mounting groove for accommodating the diaphragm is provided between the cover base and the connecting base. A mounting seat is connected to the lower end of the connecting base, and a milk collection container is detachably connected to the mounting seat. The negative pressure generating mechanism includes a manual negative pressure generating component and an electric negative pressure generating component. The manual negative pressure generating component or the electric negative pressure generating component is provided on the other side of the connecting base.

[0006] Furthermore, the cover seat is provided with a first flow channel, the connecting seat is provided with a second flow channel, and the mounting seat is provided with a third flow channel. The first flow channel, the second flow channel, the third flow channel, and the opening of the milk collection container are sequentially connected to each other.

[0007] Furthermore, when the electric negative pressure generating component is provided on the other side of the connecting seat, the diaphragm is a closed diaphragm; the electric negative pressure generating component includes a sealing cover, a connecting pipe and an electric air pump, the sealing cover is detachably connected to the other side of the connecting seat, the sealing cover is provided with a vent hole, the vent hole is connected to one end of the connecting pipe, and the other end of the connecting pipe is connected to the electric air pump.

[0008] Furthermore, when the manual negative pressure generating component is provided on the other side of the connecting seat, the diaphragm is an open-pore diaphragm with a through hole in the middle; the manual negative pressure generating component includes an adjusting shaft and a handle, the handle is provided on the other side of the connecting seat and the handle is rotatably connected to the connecting seat or the mounting seat, and one end of the adjusting shaft passes through the through hole and is connected to the handle.

[0009] Furthermore, the adjusting shaft is provided with at least two connecting parts for connecting with the handle, and the inner wall of the cover seat is provided with several positioning protrusions; when the handle is pressed towards the horn cover to switch the sucking effect of the breast pump, the other end of the adjusting shaft abuts against the positioning protrusions and the adjusting shaft rotates around the positioning protrusions.

[0010] Furthermore, the positioning bumps include two, and the line connecting the center points of the two positioning bumps does not intersect the central axis of the adjustment shaft.

[0011] Furthermore, the line connecting the tops of the two positioning protrusions is located below the central axis of the adjustment shaft.

[0012] Furthermore, the adjusting shaft includes a positioning part and an adjusting part. The adjusting part is located at one end of the positioning part. The adjusting part is provided with a snap-fit ​​groove, a first adjusting groove and a second adjusting groove in sequence along the direction away from the positioning part. The adjusting part passes through the through hole and causes the open-hole diaphragm to be snapped into the snap-fit ​​groove. The handle is snapped into the first adjusting groove or the second adjusting groove.

[0013] Furthermore, the handle includes a tilting part, a connecting part, and a pressing part connected in sequence; the tilting part is provided with a slot for the adjusting part to pass through, the slot being engaged in a first adjusting slot or a second adjusting slot; the connecting part is provided with a first pivot for connecting to the mounting base; pressing the pressing part causes the tilting part to rotate around the first pivot.

[0014] On the other hand, this utility model also provides a manual compact breast pump, the specific technical solution of which is as follows: A compact breast pump includes a manual negative pressure generating component, and a horn cover, a cover base, a diaphragm, and a connecting base arranged coaxially from front to back. The horn cover and the cover base are integrally formed or the horn cover and the cover base are detachably connected. The side of the cover base away from the horn cover is detachably connected to the side of the connecting base. An installation groove for accommodating the diaphragm is provided between the cover base and the connecting base. The lower end of the connecting base is connected to an installation seat, and a milk collection container is detachably connected to the installation seat. The diaphragm is an open-cell diaphragm with a through hole in the middle. The manual negative pressure generating component includes an adjusting shaft and a handle. The handle is located on the other side of the connecting seat and is rotatably connected to the connecting seat or the mounting seat. One end of the adjusting shaft passes through the through hole and is connected to the handle. The adjusting shaft has at least two connecting parts for connecting to the handle. The inner wall of the cover seat has several positioning protrusions. When the handle is pressed towards the horn cover to switch the suction effect of the breast pump, the other end of the adjusting shaft abuts against the positioning protrusions and the adjusting shaft rotates around the positioning protrusions.

[0015] Furthermore, the positioning bumps include two, and the line connecting the center points of the two positioning bumps does not intersect the central axis of the adjustment shaft.

[0016] Furthermore, the line connecting the tops of the two positioning protrusions is located below the central axis of the adjustment shaft.

[0017] Furthermore, the adjusting shaft includes a positioning part and an adjusting part. The adjusting part is located at one end of the positioning part. The adjusting part is provided with a snap-fit ​​groove, a first adjusting groove and a second adjusting groove in sequence along the direction away from the positioning part. The adjusting part passes through the through hole and causes the open-hole diaphragm to be snapped into the snap-fit ​​groove. The handle is snapped into the first adjusting groove or the second adjusting groove.

[0018] Furthermore, the handle includes a tilting part, a connecting part, and a pressing part connected in sequence; the tilting part is provided with a slot for the adjusting part to pass through, the slot being engaged in a first adjusting slot or a second adjusting slot; the connecting part is provided with a first pivot for connecting to the mounting base; pressing the pressing part causes the tilting part to rotate around the first pivot.

[0019] Furthermore, the cover seat is provided with a first flow channel, the connecting seat is provided with a second flow channel, and the mounting seat is provided with a third flow channel. The first flow channel, the second flow channel, the third flow channel, and the opening of the milk collection container are sequentially connected to each other.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] (1) In this utility model, the horn cover, cover body base, diaphragm and connecting seat are arranged coaxially from front to back. On the one hand, the three-way pipe structure in the prior art is eliminated, and the cover body base and connecting seat are set separately, which makes it easy to disassemble and clean, prevents dirt and bacteria from growing, and ensures safe use. On the other hand, it makes the arrangement between the components of the breast pump compact and can greatly reduce the space of the negative pressure chamber inside the breast pump, so as to effectively reduce the overall volume of the breast pump and make it easy for users to carry it with them.

[0022] (2) In manual mode, the present invention allows the breast pump to switch between different suction effects by adjusting the handle to different parts of the adjusting shaft; and by setting a positioning protrusion to cooperate with the adjusting shaft, when the handle is pressed towards the horn cover to switch the suction effect of the breast pump, the positioning part of the adjusting shaft will abut against the positioning protrusion and the adjusting shaft will rotate around the positioning protrusion, thereby causing the central axis of the adjusting shaft to tilt, making it easier for the handle to fit into the first adjusting groove on the adjusting shaft, thus making it easier for the user to quickly switch the suction effect of the breast pump and meet the different usage needs of the user. Attached Figure Description

[0023] Figure 1 This is an exploded view of the compact breast pump of Embodiment 1 of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the cover base in embodiments 1 and 2 of this utility model;

[0025] Figure 3 This is a schematic diagram of the connecting seat and mounting seat in embodiments 1 and 2 of this utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of some structures in embodiments 1 and 2 of this utility model;

[0027] Figure 5 yes Figure 4 Enlarged structural diagram at point A;

[0028] Figure 6 This is a schematic diagram of the structure of the breast pump in electric mode according to Embodiment 1 of this utility model;

[0029] Figure 7 This is an exploded view of the breast pump in electric mode according to Embodiment 1 of this utility model.

[0030] Figure 8 These are schematic diagrams of the manual mode of Embodiment 1 and the breast pump of Embodiment 2 in this utility model.

[0031] Figure 9 These are exploded structural diagrams of the breast pump in manual mode in Embodiment 1 and in Embodiment 2 of this utility model;

[0032] Figure 10 This is a schematic diagram showing the positional relationship between the two positioning protrusions and the central axis of the adjusting shaft in embodiments 1 and 2 of this utility model;

[0033] Figure 11 This is a schematic diagram of the handle structure of embodiments 1 and 2 of this utility model;

[0034] Figure 12 This is a schematic diagram of the structure of the perforated diaphragm in Embodiments 1 and 2 of this utility model;

[0035] Figure 13 This is a schematic diagram of the structure of the adjusting shaft in embodiments 1 and 2 of this utility model;

[0036] Figure 14 This is a cross-sectional view of the manual breast pumps in Embodiments 1 and 2 of this utility model when they are in the position of promoting lactation and sucking.

[0037] Figure 15 This is a cross-sectional view of the manual breast pumps in Embodiments 1 and 2 of this utility model when they are in the milk collection and sucking effect.

[0038] The attached figures are labeled as follows:

[0039] 1-Speaker cover;

[0040] 2-Cover base, 21-Mounting groove, 22-Positioning protrusion, 23-Protrusion, 24-First flow channel;

[0041] 3-Handle, 31-Lifting part, 32-Connecting part, 33-Pressing part, 34-Slot, 35-First pivot;

[0042] 4-Connector, 42-Slot, 44-Second flow channel;

[0043] 5-Milk collection container, 51-Second thread;

[0044] 60 - outer ring of the diaphragm; 61 - closed diaphragm; 62 - open diaphragm; 621 - through hole;

[0045] 7-Adjusting shaft, 71-Positioning part, 72-Adjusting part, 73-Snap-fit ​​groove, 74-First adjusting groove, 75-Second adjusting groove;

[0046] 8-Mounting base, 81-Pivot mounting groove, 82-First thread, 83-Third flow channel;

[0047] 9-Sealing cap, 91-Vent hole. Detailed Implementation

[0048] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0049] Example 1

[0050] like Figure 1-5 As shown, this embodiment discloses a compact breast pump, including a negative pressure generating mechanism and a horn cover 1, a cover base 2, a diaphragm, and a connecting seat 4 arranged coaxially from front to back. The horn cover 1 and the cover base 2 are integrally formed or detachably connected. The side of the cover base 2 away from the horn cover 1 is detachably connected to the side of the connecting seat 4. A mounting groove 21 for accommodating the diaphragm is provided between the cover base 2 and the connecting seat 4. The lower end of the connecting seat 4 is connected to a mounting seat 8, which is detachably connected to a milk collection container 5. The negative pressure generating mechanism includes a manual negative pressure generating component and an electric negative pressure generating component. The other side of the connecting seat 4 is provided with either the manual negative pressure generating component or the electric negative pressure generating component. Preferably, the connecting seat 4 and the mounting seat 8 are integrally formed and interconnected.

[0051] In this embodiment, the diaphragm seals the breast pump seat 2, creating a negative pressure chamber in the front half of the horn cover 1 and the breast pump seat 2. A negative pressure generating mechanism causes the diaphragm to deform and move, generating negative pressure inside the chamber to achieve a sucking effect. In actual use, the user can select either electric or manual mode according to their needs. When selecting electric mode, a corresponding diaphragm is used, and an electric negative pressure generating component is installed on the other side of the connecting seat 4. When selecting manual mode, a corresponding diaphragm is used, and a manual negative pressure generating component is installed on the other side of the connecting seat 4. The breast pump in this embodiment is easy and quick to switch between modes, meeting the different needs of users. Furthermore, in this embodiment, the horn cover, cover base, diaphragm, and connecting seat are arranged coaxially from front to back. On the one hand, this eliminates the three-way pipe structure in the prior art, and the cover base and connecting seat are arranged separately, which facilitates disassembly and cleaning, prevents dirt and bacteria from accumulating, and ensures safe use. On the other hand, it makes the arrangement of the various components of the breast pump more compact, which can greatly reduce the space of the negative pressure chamber inside the breast pump. This not only effectively reduces the overall size of the breast pump and makes it easier for users to carry, but also effectively increases the suction efficiency and improves the milk expression effect.

[0052] Furthermore, such as Figure 2-5 As shown, the cover 2 is provided with a first flow channel 24, the connecting seat 4 is provided with a second flow channel 44, and the mounting seat 8 is provided with a third flow channel 83. The first flow channel 24, the second flow channel 44, the third flow channel 83, and the opening of the milk collection container 5 are sequentially interconnected. In this embodiment, milk flows sequentially into the milk collection container 5 along the horn cover 1, the first flow channel 24, the second flow channel 44, the third flow channel 83, and the opening of the milk collection container 5. Figure 4 The direction of the middle arrow indicates the direction of milk flow. See also Figure 4 and 5The first flow channel 24 has an inlet and an outlet. The outlet of the first flow channel 24 is connected to the inlet of the second flow channel 44. The outer ring portion 60 of the diaphragm covers the outlet position of the first flow channel 24. In actual use, when the electric or manual negative pressure generating mechanism drives the diaphragm to move away from the horn cover 1, the volume of the negative pressure chamber increases, thereby generating negative pressure inside the negative pressure chamber, achieving a suction effect. At the same time, the outer ring portion 60 of the diaphragm is pressed tightly against the outlet position of the first flow channel 24 due to the negative pressure, thus separating the outlet of the first flow channel 24 from the inlet of the second flow channel 44. The sucked milk flows into the first flow channel 24 along the flow direction. At this time, due to the action of the outer ring portion 60 of the diaphragm, the milk does not flow into the second flow channel 44; when the diaphragm moves closer to the outlet position... When the breast pump moves back to its original position near the horn cover 1, the volume of the negative pressure chamber returns to its original size, thus eliminating negative pressure inside the chamber. The breast pump stops sucking, and the outer ring 60 of the diaphragm no longer adheres to the outlet of the first flow channel 24 due to the disappearance of negative pressure. At this time, the outlet of the first flow channel 24 connects with the inlet of the second flow channel 44, and the milk in the first flow channel 24 flows into the second flow channel 44 and then flows into the milk collection container 5 along the third flow channel 83 for collection. This cycle repeats, and the breast pump achieves the sucking and collection of milk during the sucking and releasing process.

[0053] Furthermore, such as Figure 6-7 As shown, when the electric negative pressure generating assembly is provided on the other side of the connecting seat 4, the diaphragm is a closed diaphragm 61. The electric negative pressure generating assembly includes a sealing cover 9, a connecting pipe (not shown in the figure), and an electric air pump (not shown in the figure). The sealing cover 9 is detachably connected to the other side of the connecting seat 4. The sealing cover 9 is provided with a vent hole 91, which is connected to one end of the connecting pipe, and the other end of the connecting pipe is connected to the electric air pump. Preferably, the sealing cover 9 is threadedly connected to the other side of the connecting seat 4. In this embodiment, when the electric mode is selected, the closed diaphragm 61 is placed in the mounting groove 21, and the sealing cover 9 is installed on the other side of the connecting seat 4. The vent hole 91 is connected to the electric air pump through the connecting pipe. When the electric air pump is started, the diaphragm will deform and move, generating negative pressure inside the negative pressure chamber to achieve suction. Furthermore, the electric air pump can adjust the suction force to adjust the suction effect of the breast pump. This is prior art and will not be described in detail here.

[0054] Furthermore, such as Figure 8-9As shown, when the manual negative pressure generating component is provided on the other side of the connecting seat 4, the diaphragm is an open-pore diaphragm 62, and the open-pore diaphragm 62 has a through hole 621 in the middle; the manual negative pressure generating component includes an adjusting shaft 7 and a handle 3. The handle 3 is located on the other side of the connecting seat 4 and is rotatably connected to the connecting seat 4 or the mounting seat 8. One end of the adjusting shaft 7 passes through the through hole 621 and is connected to the handle 3. In this embodiment, when the manual mode is selected, the open-pore diaphragm 62 is placed in the mounting groove 21, the adjusting shaft 7 is inserted into the through hole 621, the handle 3 is provided on the other side of the connecting seat 4, and the handle 3 is rotatably connected to the connecting seat 4 or the mounting seat 8. The end of the adjusting shaft 7 away from the open-pore diaphragm 62 is connected to the handle 3. Pressing the handle 3 causes the adjusting shaft 7 to reciprocate, thereby causing the open-pore diaphragm 62 to deform and move, so that negative pressure is generated inside the negative pressure chamber, achieving the suction effect.

[0055] Further, see Appendix Figure 9-13 The adjusting shaft 7 is provided with at least two connecting parts for connecting with the handle 3, and the inner wall of the cover 2 is provided with a plurality of positioning protrusions 22; when the handle 3 is pressed towards the horn cover 1 to switch the sucking effect of the breast pump, the other end of the adjusting shaft 7 abuts against the positioning protrusion 22 and the adjusting shaft 7 rotates around the positioning protrusion 22. Preferably, the adjusting shaft 7 includes a positioning part 71 and an adjusting part 72. The positioning part 71 is specifically a circular positioning plate, the diameter of which is much larger than the diameter of the through hole 621. When the handle 3 drives the adjusting shaft 7 to reciprocate, the positioning part can cause the perforated diaphragm 62 to deform and move. The adjusting part 72 is located at one end of the positioning part 71. The adjusting part 72 is provided with a locking groove 73, a first adjusting groove 74, and a second adjusting groove 75 in sequence along the direction away from the positioning part 71. The adjusting part 72 passes through the through hole 621 and causes the perforated diaphragm 62 to be locked in the locking groove. The first adjusting groove 74 and the second adjusting groove 75 are two connection parts for connecting with the handle. The handle 3 is locked in the first adjusting groove 74 or the second adjusting groove 75.

[0056] In actual use, the user can first adjust the handle 3 to the second adjustment slot 75, such as... Figure 14 As shown, at this time, the movement stroke of the handle 3 is relatively short, the pressing frequency is relatively high, and the deformation degree of the perforated diaphragm 62 is relatively small, resulting in a smaller negative pressure inside the negative pressure chamber. This achieves a high-frequency, low-suction effect to promote milk production and quickly stimulate milk let-down. Next, the user can press the handle 3 towards the horn cover 1 to adjust the handle 3 to the first adjustment slot 74, as shown. Figure 15As shown, when the breast pump is switched from lactation-stimulating to milk-collecting, the handle 3 has a longer stroke, a lower pressing frequency, and a greater degree of deformation of the perforated diaphragm 62, resulting in a higher negative pressure inside the negative pressure chamber. This achieves a slow-frequency, high-suction effect, thus fully extracting hindmilk. A limiting protrusion is provided between the first and second adjustment slots 74 and 75 to prevent the handle 3 from detaching from either slot during use. When the user presses the handle 3 towards the horn cover 1, the limiting protrusion... Due to the restriction of the protrusion, the handle 3 will cause the positioning part 71 of the adjustment shaft 7 to abut against the positioning protrusion 22, and the adjustment shaft 7 will rotate around the positioning protrusion 22, thereby causing the central axis of the adjustment shaft 7 to tilt, that is, the adjustment shaft 7 tilts relative to the handle 3, so that a part of the handle 3 passes through the limiting protrusion first, and then the remaining part passes through the limiting protrusion. With this setting, the user can quickly adjust the handle 3 from the second adjustment shaft 75 to the first adjustment groove 74, so that the user can quickly switch the sucking effect of the breast pump and meet the different usage needs of the user.

[0057] Furthermore, such as Figure 10 As shown, the positioning protrusion 22 includes two protrusions, and the line A connecting the center points of the two positioning protrusions 22 does not intersect the central axis C of the adjusting shaft 7. Preferably, the line B connecting the tops of the two positioning protrusions 22 is located below the central axis C of the adjusting shaft 7.

[0058] In this embodiment, in order to achieve the following when the handle 3 is pressed towards the horn cover 1, the positioning part 71 of the adjusting shaft 7 abuts against the positioning protrusion 22 and the adjusting shaft 7 rotates around the positioning protrusion 22, the two positioning protrusions 22 are set off from the central axis of the adjusting shaft 7. When the handle 3 is pressed, the external force is transmitted along the central axis of the adjusting shaft 7. At this time, the side of the adjusting shaft 7 away from the two positioning protrusions 22 will rotate towards the horn cover 1, thereby causing the central axis of the adjusting shaft 7 to tilt.

[0059] Furthermore, such as Figure 11 As shown, the handle 3 includes a tilting part 31, a connecting part 32, and a pressing part 33 connected in sequence. The tilting part 31 has a slot 34 through which the adjusting part 72 passes, and the slot 34 is engaged in a first adjusting slot 74 or a second adjusting slot 75. The connecting part 32 has a first pivot 35 for connecting with the mounting base 8. Pressing the pressing part 33 allows the tilting part 31 to rotate around the first pivot 35. In actual operation, when the user presses the pressing part 33, the tilting part 31 rotates around the first pivot 35, that is, the tilting part 31 reciprocates back and forth, thereby driving the adjusting shaft 7, which is engaged in the slot 34, to reciprocate back and forth.

[0060] Furthermore, the lower end of the mounting base 8 is provided with a first thread 82, and the upper end of the milk collection container 5 is provided with a second thread 51. The milk collection container 5 and the mounting base 8 are connected by threads, making it easy to disassemble the milk collection container 5 after the milk is collected. The connecting base 4 is provided with a slot 42 inside, and the outer side of the cover 2 is provided with a protrusion 23 corresponding to the slot 42. The cover 2 and the connecting base 4 are snapped together, making it easy to disassemble and clean them. The handle 3 is provided with a first pivot 35 on both sides, and the mounting base 8 is also provided with a pivot mounting groove 81 on both sides of the middle part. By inserting the first pivot 35 into the pivot mounting groove 81, the handle 3 and the mounting base 8 can be rotatably connected.

[0061] Example 2

[0062] like Figure 2-5 As shown in Figures 8-15, a compact breast pump includes a manual negative pressure generating component and a horn cover 1, a cover base 2, a diaphragm, and a connecting seat 4 arranged coaxially from front to back. The horn cover 1 and the cover base 2 are integrally formed or detachably connected. The side of the cover base 2 away from the horn cover 1 is detachably connected to the side of the connecting seat 4. A mounting groove 21 for accommodating the diaphragm is provided between the cover base 2 and the connecting seat 4. A mounting seat 8 is connected to the lower end of the connecting seat 4, and a milk collection container 5 is detachably connected to the mounting seat 8. The diaphragm is an open-cell diaphragm 62. A through hole 621 is provided in the middle of 2; the manual negative pressure generating component includes an adjusting shaft 7 and a handle 3. The handle 3 is located on the other side of the connecting seat 4 and is rotatably connected to the connecting seat 4 or the mounting seat 8. One end of the adjusting shaft 7 passes through the through hole 621 and is connected to the handle 3. The adjusting shaft 7 is provided with at least two connecting parts for connecting to the handle 3. The inner wall of the cover seat 2 is provided with several positioning protrusions 22. When the handle 3 is pressed towards the horn cover 1 to switch the sucking effect of the breast pump, the other end of the adjusting shaft 7 abuts against the positioning protrusion 22 and the adjusting shaft 7 rotates around the positioning protrusion 22.

[0063] In this embodiment, the cover seat 2 is sealed by the perforated diaphragm 62 and the adjusting shaft 7, so that the front half of the speaker cover 1 and the cover seat 2 form a negative pressure chamber; by pressing the handle 3, the adjusting shaft 7 is driven to move back and forth. While the adjusting shaft 7 is moving, the perforated diaphragm 62 is deformed and moved, so that negative pressure is generated inside the negative pressure chamber, and the suction effect is achieved.

[0064] Furthermore, such as Figure 9-13As shown, the adjusting shaft 7 includes a positioning part 71 and an adjusting part 72. The positioning part 71 is specifically a circular positioning plate, the diameter of which is much larger than the diameter of the through hole 621. When the handle 3 drives the adjusting shaft 7 to reciprocate, the positioning part can cause the perforated diaphragm 62 to deform and move. The adjusting part 72 is located at one end of the positioning part 71. The adjusting part 72 is provided with a snap-fit ​​groove 73, a first adjusting groove 74, and a second adjusting groove 75 in sequence along the direction away from the positioning part 71. The adjusting part 72 passes through the through hole 621 and causes the perforated diaphragm 62 to be snapped into the snap-fit ​​groove. The first adjusting groove 74 and the second adjusting groove 75 are two connection parts for connecting with the handle. The handle 3 is snapped into the first adjusting groove 74 or the second adjusting groove 75.

[0065] In actual use, the user can first adjust the handle 3 to the second adjustment slot 75, such as... Figure 14 As shown, at this time, the movement stroke of the handle 3 is relatively short, the pressing frequency is relatively high, and the deformation degree of the perforated diaphragm 62 is relatively small, resulting in a smaller negative pressure inside the negative pressure chamber. This achieves a high-frequency, low-suction effect to promote milk production and quickly stimulate milk let-down. Next, the user can press the handle 3 towards the horn cover 1 to adjust the handle 3 to the first adjustment slot 74, as shown. Figure 15 As shown, when the breast pump is switched from lactation-stimulating to milk-collecting, the handle 3 has a longer stroke, a lower pressing frequency, and a greater degree of deformation of the perforated diaphragm 62, resulting in a higher negative pressure inside the negative pressure chamber. This achieves a slow-frequency, high-suction effect, thus fully extracting hindmilk. A limiting protrusion is provided between the first and second adjustment slots 74 and 75 to prevent the handle 3 from detaching from either slot during use. When the user presses the handle 3 towards the horn cover 1, the limiting protrusion... Due to the restriction of the protrusion, the handle 3 will cause the positioning part 71 of the adjustment shaft 7 to abut against the positioning protrusion 22, and the adjustment shaft 7 will rotate around the positioning protrusion 22, thereby causing the central axis of the adjustment shaft 7 to tilt, that is, the adjustment shaft 7 tilts relative to the handle 3, so that a part of the handle 3 passes through the limiting protrusion first, and then the remaining part passes through the limiting protrusion. With this setting, the user can quickly adjust the handle 3 from the second adjustment shaft 75 to the first adjustment groove 74, so that the user can quickly switch the sucking effect of the breast pump and meet the different usage needs of the user.

[0066] Furthermore, such as Figure 10 As shown, the positioning protrusion 22 includes two protrusions, and the line connecting the center points of the two positioning protrusions 22 does not intersect the central axis of the adjusting shaft. Preferably, the line connecting the tops of the two positioning protrusions is located below the central axis of the adjusting shaft.

[0067] In this embodiment, in order to achieve the following when the handle 3 is pressed towards the horn cover 1, the positioning part 71 of the adjusting shaft 7 abuts against the positioning protrusion 22 and the adjusting shaft 7 rotates around the positioning protrusion 22, the two positioning protrusions 22 are set off from the central axis of the adjusting shaft 7. When the handle 3 is pressed, the external force is transmitted along the central axis of the adjusting shaft 7. At this time, the side of the adjusting shaft 7 away from the two positioning protrusions 22 will rotate towards the horn cover 1, thereby causing the central axis of the adjusting shaft 7 to tilt.

[0068] Furthermore, such as Figure 11 As shown, the handle 3 includes a tilting part 31, a connecting part 32, and a pressing part 33 connected in sequence. The tilting part 31 has a slot 34 through which the adjusting part 72 passes, and the slot 34 is engaged in a first adjusting slot 74 or a second adjusting slot 75. The connecting part 32 has a first pivot 35 for connecting with the mounting base 8. Pressing the pressing part 33 allows the tilting part 31 to rotate around the first pivot 35. In actual operation, when the user presses the pressing part 33, the tilting part 31 rotates around the first pivot 35, that is, the tilting part 31 reciprocates back and forth, thereby driving the adjusting shaft 7, which is engaged in the slot 34, to reciprocate back and forth.

[0069] Furthermore, such as Figure 2-5 As shown, the cover 2 is provided with a first flow channel 24, the connecting seat 4 is provided with a second flow channel 44, and the mounting seat 8 is provided with a third flow channel 83. The first flow channel 24, the second flow channel 44, the third flow channel 83, and the opening of the milk collection container 5 are sequentially interconnected. In this embodiment, milk flows sequentially into the milk collection container 5 along the horn cover 1, the first flow channel 24, the second flow channel 44, the third flow channel 83, and the opening of the milk collection container 5. Figure 4 The direction of the middle arrow indicates the direction of milk flow. See also Figure 4 and 5The first flow channel 24 has an inlet and an outlet. The outlet of the first flow channel 24 is connected to the inlet of the second flow channel 44. The outer ring portion 60 of the diaphragm covers the outlet position of the first flow channel 24. In actual use, when the electric or manual negative pressure generating mechanism drives the diaphragm to move away from the horn cover 1, the volume of the negative pressure chamber increases, thereby generating negative pressure inside the negative pressure chamber, achieving a suction effect. At the same time, the outer ring portion 60 of the diaphragm is pressed tightly against the outlet position of the first flow channel 24 due to the negative pressure, thus separating the outlet of the first flow channel 24 from the inlet of the second flow channel 44. The sucked milk flows into the first flow channel 24 along the flow direction. At this time, due to the action of the outer ring portion 60 of the diaphragm, the milk does not flow into the second flow channel 44; when the diaphragm moves closer to the outlet position... When the breast pump moves back to its original position near the horn cover 1, the volume of the negative pressure chamber returns to its original size, thus eliminating negative pressure inside the chamber. The breast pump stops sucking, and the outer ring 60 of the diaphragm no longer adheres to the outlet of the first flow channel 24 due to the disappearance of negative pressure. At this time, the outlet of the first flow channel 24 connects with the inlet of the second flow channel 44, and the milk in the first flow channel 24 flows into the second flow channel 44 and then flows into the milk collection container 5 along the third flow channel 83 for collection. This cycle repeats, and the breast pump achieves the sucking and collection of milk during the sucking and releasing process.

[0070] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A compact breast pump, characterized in that: The device includes a negative pressure generating mechanism, and a horn cover, a cover base, a diaphragm, and a connecting base arranged coaxially from front to back. The horn cover and the cover base are integrally formed or detachably connected. The side of the cover base away from the horn cover is detachably connected to the side of the connecting base. An installation groove for accommodating the diaphragm is provided between the cover base and the connecting base. An installation seat is connected to the lower end of the connecting base, and a milk collection container is detachably connected to the installation seat. The negative pressure generating mechanism includes a manual negative pressure generating component and an electric negative pressure generating component. The manual negative pressure generating component or the electric negative pressure generating component is provided on the other side of the connecting base.

2. A compact breast pump according to claim 1, characterized in that: The cover base is provided with a first flow channel, the connecting base is provided with a second flow channel, and the mounting base is provided with a third flow channel. The first flow channel, the second flow channel, the third flow channel, and the opening of the milk collection container are sequentially connected to each other.

3. A compact breast pump according to claim 1, characterized in that: When the electric negative pressure generating component is provided on the other side of the connecting seat, the diaphragm is a closed diaphragm; the electric negative pressure generating component includes a sealing cover, a connecting pipe and an electric air pump. The sealing cover is detachably connected to the other side of the connecting seat. The sealing cover is provided with a vent hole. The vent hole is connected to one end of the connecting pipe and the other end of the connecting pipe is connected to the electric air pump.

4. A compact breast pump according to claim 1, characterized in that: When the manual negative pressure generating component is provided on the other side of the connecting seat, the diaphragm is an open-pore diaphragm with a through hole in the middle; the manual negative pressure generating component includes an adjusting shaft and a handle, the handle is provided on the other side of the connecting seat and the handle is rotatably connected to the connecting seat or the mounting seat, and one end of the adjusting shaft passes through the through hole and is connected to the handle.

5. A compact breast pump according to claim 4, characterized in that: The adjusting shaft is provided with at least two connecting parts for connecting with the handle, and the inner wall of the cover seat is provided with several positioning protrusions; when the handle is pressed towards the horn cover to switch the sucking effect of the breast pump, the other end of the adjusting shaft abuts against the positioning protrusions and the adjusting shaft rotates around the positioning protrusions.

6. A compact breast pump according to claim 5, characterized in that: The positioning bumps include two, and the line connecting the center points of the two positioning bumps does not intersect the central axis of the adjustment shaft.

7. A compact breast pump according to claim 6, characterized in that: The line connecting the tops of the two positioning protrusions is located below the central axis of the adjustment shaft.

8. A compact breast pump according to claim 5, characterized in that: The adjusting shaft includes a positioning part and an adjusting part. The adjusting part is located at one end of the positioning part. The adjusting part is provided with a snap-fit ​​groove, a first adjusting groove and a second adjusting groove in sequence along the direction away from the positioning part. The adjusting part passes through the through hole and causes the open-hole diaphragm to be snapped into the snap-fit ​​groove. The handle is snapped into the first adjusting groove or the second adjusting groove.

9. A compact breast pump according to claim 8, characterized in that: The handle includes a tilting part, a connecting part, and a pressing part connected in sequence; the tilting part has a slot for the adjusting part to pass through, and the slot is engaged in a first adjusting slot or a second adjusting slot; the connecting part has a first pivot for connecting with a mounting base; pressing the pressing part causes the tilting part to rotate around the first pivot.

10. A compact breast pump, characterized in that: The device includes a manual negative pressure generating component, and a horn cover, a cover base, a diaphragm, and a connecting seat arranged coaxially from front to back. The horn cover and the cover base are integrally formed or detachably connected. The side of the cover base away from the horn cover is detachably connected to the side of the connecting seat. A mounting groove for accommodating the diaphragm is provided between the cover base and the connecting seat. A mounting seat is connected to the lower end of the connecting seat, and a milk collection container is detachably connected to the mounting seat. The diaphragm is an open-cell diaphragm, and the middle of the open-cell diaphragm has a... A through hole; the manual negative pressure generating component includes an adjusting shaft and a handle, the handle is located on the other side of the connecting seat and is rotatably connected to the connecting seat or the mounting seat, one end of the adjusting shaft passes through the through hole and is connected to the handle, the adjusting shaft is provided with at least two connecting parts for connecting with the handle, and the inner wall of the cover seat is provided with several positioning protrusions; when the handle is pressed towards the direction of the horn cover to switch the sucking effect of the breast pump, the other end of the adjusting shaft abuts against the positioning protrusions and the adjusting shaft rotates around the positioning protrusions.

11. A compact breast pump according to claim 10, characterized in that: The positioning bumps include two, and the line connecting the center points of the two positioning bumps does not intersect the central axis of the adjustment shaft.

12. A compact breast pump according to claim 11, characterized in that: The line connecting the tops of the two positioning protrusions is located below the central axis of the adjustment shaft.

13. A compact breast pump according to claim 10, characterized in that: The adjusting shaft includes a positioning part and an adjusting part. The adjusting part is located at one end of the positioning part. The adjusting part is provided with a snap-fit ​​groove, a first adjusting groove and a second adjusting groove in sequence along the direction away from the positioning part. The adjusting part passes through the through hole and causes the open-hole diaphragm to be snapped into the snap-fit ​​groove. The handle is snapped into the first adjusting groove or the second adjusting groove.

14. A compact breast pump according to claim 13, characterized in that: The handle includes a tilting part, a connecting part, and a pressing part connected in sequence; the tilting part has a slot for the adjusting part to pass through, and the slot is engaged in a first adjusting slot or a second adjusting slot; the connecting part has a first pivot for connecting with a mounting base; pressing the pressing part causes the tilting part to rotate around the first pivot.

15. A compact breast pump according to claim 10, characterized in that: The cover base is provided with a first flow channel, the connecting base is provided with a second flow channel, and the mounting base is provided with a third flow channel. The first flow channel, the second flow channel, the third flow channel, and the opening of the milk collection container are sequentially connected to each other.

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