Breast pump

Abstract

The invention provides a breast pump which comprises a milk collecting cup, a milk collecting cup body and a bra. A milk tube of the bra is fixed at the open end of the milk collecting cup body, and the outer end of the milk tube extends to form a milk cup; the shell assembly comprises a shell detachably connected with the opening end of the milk collecting cup body and a penetrating air nozzle and air pump assembly; the stable ventilation plate comprises a plate body which covers the open end of the milk collecting cup body and is detachably connected with the open end of the milk collecting cup body, a milk inlet penetrating through the plate body, a one-way valve covering the milk inlet, an air groove cup surrounding the milk inlet and a connecting pipe penetrating through the front face of the air groove cup; the milk tube is inserted into the connecting tube and is in detachable sealing connection with the connecting tube; the elastic air bag is inserted into the air groove cup and completely covers one end of the connecting pipe; the elastic air bag is separated from the milk inlet and is in detachable sealing connection with the opening end of the air groove cup; the shell abuts against the open end of the elastic air bag to form sealing, and the air nozzle is communicated with the elastic air bag. Compared with the prior art, the breast pump is simple in structure and convenient to clean.

Description

Technical Field

[0001] This invention relates to the field of maternal and infant products technology, and in particular to a breast pump for collecting breast milk. Background Technology

[0002] Existing breast pumps include a cavity and a cup body installed at the bottom of the cavity. A funnel-shaped cup head is provided on the front of the cavity and communicates with the cavity. In use, the cup head is placed over the breast to collect the milk into the cup body. The entire breast pump is supported by a bra, thus achieving convenient use.

[0003] However, in related breast pump technologies, the cup design includes a cup cover, a channel extending from the bottom of the cup cover, an air groove located above and connected to the channel, and a flexible suction plate located within the air groove. The channel is divided into an upper suction channel and a lower milk channel. The suction channel is connected to the air groove. The flexible suction plate deforms to create negative pressure within the air groove, which is then transmitted to the cup cover through the suction channel, squeezing the breast to expel milk, which then flows into the cup body through the milk channel. While this structure provides good milk expression, the suction channel and milk channel are in the same space. During suction, the negative pressure can also cause a small amount of milk to be drawn into the air groove through the suction channel, making cleaning inconvenient. Furthermore, the cavity and cup body are separate structures, resulting in a complex design. Multiple structural components inevitably expose mold marks, leading to an unattractive appearance.

[0004] Therefore, it is necessary to provide a new breast pump to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a breast pump that is simple in structure, easy to clean, and has a good aesthetic appearance.

[0006] To solve the above-mentioned technical problems, the present invention provides a breast pump, comprising:

[0007] A breast cup, made of elastic material, includes a breast cup body and a bra fixed to the front of the breast cup body; the bra includes a breast tube fixed to the open end of the breast cup body and extending horizontally, and a flared breast cup extending from the outer end of the breast tube to the outside of the breast cup body.

[0008] The outer casing assembly includes a housing that covers the opening end of the milk collection cup and forms a detachably connected housing, an air nozzle and an air pump assembly that pass through the housing, and the air pump assembly is connected to the air nozzle via an air pipe.

[0009] A stabilizing plate, comprising a plate body with a cover plate at the open end of the milk collection cup and its periphery detachably connected to the milk collection cup body, a milk inlet penetrating the plate body and communicating with the milk collection cup body, a one-way valve covering the milk inlet, an air groove cup extending upward from the plate body and surrounding the milk inlet, and a connecting pipe penetrating the front of the air groove cup and extending along an axial direction perpendicular to the air groove cup to the open end of the milk collection cup body; the milk tube and the connecting pipe forming a detachable sealed connection; and...

[0010] An elastic airbag is inserted into the air reservoir cup and completely fits and covers the end of the connecting tube near the elastic airbag; the elastic airbag is spaced apart from the milk inlet and its open end forms a detachable sealed connection with the open end of the air reservoir cup; the housing is pressed against the open end of the elastic airbag to form a seal, and the air nozzle is connected to the elastic airbag.

[0011] Preferably, the milk collection cup body, the milk tube, and the milk cup are integrally injection molded structures.

[0012] Preferably, the outer circumference of the milk tube is provided with an external thread, and the inner circumference of the connecting tube is provided with an internal thread, and the external thread and the internal thread are screwed together to form a seal.

[0013] Preferably, the outer periphery of the milk tube protrudes at one end near the connecting tube to form a ring-shaped pattern, and the milk tube is inserted into the connecting tube and pressurized to form a sealed connection.

[0014] Preferably, the stabilizing plate further includes a milk collection groove extending downward from the plate body into the milk collection cup body, the air groove cup is arranged around the milk collection groove, the milk inlet is arranged through the bottom of the milk collection groove, and the one-way valve is fixed to the bottom of the milk collection groove.

[0015] Preferably, the one-way valve is made of an elastic material and includes a connecting post penetrating the bottom of the milk collection groove, a retaining wall formed on the side of the connecting post near the elastic air bladder, and a valve tongue formed on the side of the connecting post away from the elastic air bladder. The valve tongue fits against the bottom of the milk collection groove on the side away from the elastic air bladder and completely covers the milk inlet.

[0016] Preferably, the bottom of the milk collection groove is high in the middle and low on the sides, and the milk inlet is located in the peripheral area of ​​the bottom of the milk collection groove.

[0017] Preferably, the elastic airbag portion is located within the milk collection groove, and a guide groove is provided on the outer periphery of the elastic airbag. The guide groove extends from the bottom of the elastic airbag to its two opposite sides, and the portion of the guide groove located on the side of the elastic airbag is opposite to the connecting tube.

[0018] Preferably, the air pump assembly includes an air pump and a shut-off valve respectively installed in the housing, the air nozzle includes an air outlet and an air inlet respectively connected to the elastic airbag, the air pump is connected to the air outlet through an air pipe for drawing air from the elastic airbag, and the shut-off valve is connected to the air inlet through an air pipe for introducing external air into the elastic airbag when the air pump stops working.

[0019] Preferably, the periphery of the plate is recessed on the side near the milk collection cup to form a milk pouring groove in the direction away from the milk collection cup. When the plate is placed over the milk collection cup, it together with the milk pouring groove forms a milk pouring outlet.

[0020] Compared with related technologies, the breast pump of the present invention features a milk collection cup made of elastic material for collecting milk, along with a milk collection cup body and a breast shield. A detachable sealed connection is formed by a stabilizing plate covering the opening end of the milk collection cup body, creating a sealed environment for collecting milk. The milk tubes of the breast shield are detachably sealed to the connecting pipe of the stabilizing plate. An air groove cup on the stabilizing plate communicates with the connecting pipe, and an elastic airbag is installed inside the air groove cup. An air pump assembly draws gas from the elastic airbag to create negative pressure, thereby creating negative pressure in the connecting pipe and milk tubes, achieving the purpose of milk extraction. Because air extraction and milk extraction share the channel formed by the connecting pipe and milk tubes, the number of parts is reduced, resulting in a simple structure and easy cleaning. Furthermore, the air groove cup containing the elastic airbag is directly connected to the milk inlet, allowing milk to enter the milk collection cup body more smoothly. At the same time, because the milk collection cup body and the stabilizing plate are installed vertically, mold marks or installation marks can be hidden at the joint, resulting in a more aesthetically pleasing appearance. Attached Figure Description

[0021] The present invention will now be described in detail with reference to the accompanying drawings. The above and other aspects of the present invention will become clearer and more readily understood through the detailed description following the accompanying drawings. In the drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of a first embodiment of the breast pump of the present invention;

[0023] Figure 2 This is a partial three-dimensional exploded view of the breast pump according to Embodiment 1 of the present invention;

[0024] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure;

[0025] Figure 4 This is a partial three-dimensional structural schematic diagram of Embodiment 1 of the breast pump of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of Embodiment 2 of the breast pump of the present invention;

[0027] Figure 6 This is a partial three-dimensional exploded view of the breast pump of Embodiment 2 of the present invention. Detailed Implementation

[0028] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] The specific embodiments / examples described herein are specific implementations of the present invention, used to illustrate the concept of the invention, and are illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of the present invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein, all of which are within the protection scope of the present invention.

[0030] The following descriptions of the embodiments are made with reference to the accompanying drawings, illustrating specific embodiments in which the invention can be implemented. Directional terms used in this invention, such as up, down, front, back, left, right, inside, outside, side, etc., are merely directional references to the accompanying drawings. Therefore, the directional terms used are for illustrative and understanding purposes only, and not for limiting the invention.

[0031] Please refer to Figure 1-6 As shown, the present invention provides a breast pump 100, including a milk collection cup 1, a shell assembly 2, a stabilizing plate 3, and an elastic airbag 4.

[0032] The milk collection cup 1 includes a milk collection cup body 11 for collecting milk and a bra 12 fixed to the front of the milk collection cup body 11.

[0033] In this embodiment, "front" refers to the side of the breast pump 100 facing the breast when the user uses it.

[0034] The bra 12 includes a breast tube 121 that is fixed to the open end of the breast cup body 11 and extends horizontally, and a breast cup 122 that extends from the outer end of the breast tube 121 to the outside of the breast cup body 11 and is funnel-shaped.

[0035] In this embodiment, the breast collection cup 1 is made of an elastic material, such as silicone. The breast collection cup body 11 and the bra 12 can be an integral structure or separate structures. When it is a separate structure, the breast tube 121 of the bra 12 is designed to be directly inserted or rotated onto the open end of the breast collection cup body 11. In this embodiment, the breast collection cup 1 is preferably an integral injection-molded structure, which not only effectively reduces the number of major components and simplifies the structure, but also makes cleaning easier.

[0036] The nipple cup 122 is trumpet-shaped, conforming to the breast's shape. Its elastic material further enhances its fit and comfort. When the nipple cup 122 is placed over the breast, the nipple is directly opposite the milk duct 121. When negative pressure is generated within the milk duct 121, milk is drawn out and flows through the duct into the milk collection cup 11 for collection. Because the nipple cup 122 is made of elastic material, it adapts to the breast's position as it adjusts, providing dynamic adjustment and preventing milk leakage, thus improving reliability.

[0037] like Figure 5-6 The outer shell assembly 2 is made of a rigid material and includes a shell 21 that covers the opening end of the milk collection cup 11 and forms a detachably connected shell 21, an air nozzle 22 that passes through the shell 21, and an air pump assembly 23. The air pump assembly 23 is connected to the air nozzle 22 through an air pipe.

[0038] The air pump assembly 23 can be configured as a separate structure located outside the housing 21, such as... Figure 1-4 As shown; it can also be located inside the housing 21, integrated into the breast pump 100 to form a single structure, such as Figure 5-6 As shown, these are the differences between the two embodiments of the present invention, both of which are feasible.

[0039] In this embodiment, the air pump assembly 23 is integrated into the breast pump 100, such as... Figure 5-6 Specifically, the air pump assembly 23 includes an air pump 231 and an air-lock valve 232 respectively installed in the housing 21. The air nozzle 22 includes an outlet nozzle 221 and an inlet nozzle 222 respectively connected to the elastic airbag 4. The air pump 231 is connected to the outlet nozzle 221 through an air tube and is used to draw air from the elastic airbag 4 to achieve milk suction. The air-lock valve 232 is connected to the inlet nozzle 222 through an air tube and is used to introduce external air into the elastic airbag 4 when the air pump 231 stops working, so that the elastic airbag 4 restores its elastic deformation. That is, when the air pump 231 is suctioning air, the air-lock valve 232 is closed, and when the air pump 231 stops suctioning air, the air-lock valve 232 is open.

[0040] Continue to participate Figure 1-4 As shown, the stabilizing plate 3 includes a plate 31 that covers the opening end of the milk collection cup 11 and whose periphery is detachably connected to the milk collection cup 11; a milk inlet 32 ​​that passes through the plate 31 and communicates with the milk collection cup 11; a one-way valve 33 that covers the milk inlet 32; an air groove cup 34 that extends upward from the plate 31 and surrounds the milk inlet 32; and a connecting pipe 35 that passes through the front of the air groove cup 34 and extends along an axial direction perpendicular to the air groove cup 34 to the opening end of the milk collection cup 11.

[0041] In this embodiment, the stabilizing plate 3 is made of a rigid material.

[0042] The plate 31 engages with the open end of the milk collection cup 11 via a snap-fit ​​structure, thereby forming a sealed space in the milk collection cup 11 and preventing the collected milk from overflowing.

[0043] More preferably, the periphery of the plate 31 is recessed towards the milk collection cup 11 on the side closest to the cup, forming a milk pouring groove (not shown in the figure). When the plate 31 is placed over the milk collection cup 11, it and the milk pouring groove together form a milk pouring opening 311, facilitating the pouring of milk from the cup 11 after milk collection. Furthermore, this structure is an upper and lower mounting structure, which conceals any mold marks or installation marks on the milk pouring opening 311, resulting in a more aesthetically pleasing appearance.

[0044] The emulsion tube 121 and the connecting tube 35 form a detachable sealed connection. Thus, the emulsion tube 121 and the connecting tube 35 together form a channel structure for collecting emulsion.

[0045] The sealing connection between the milk tube 121 and the connecting tube 35 can be a plug-in connection or a rotary connection.

[0046] Specifically, in this embodiment, the outer circumference of the emulsion tube 121 is provided with external threads, and the inner circumference of the connecting tube 35 is provided with internal threads. The external threads and the internal threads are screwed together to form a seal. This structural design facilitates disassembly and assembly and provides good sealing. The design of the emulsion tube 121 makes the channel structure for collecting the emulsion higher at the front and lower at the back. The inner diameter of the emulsion tube 121 is smaller than the inner diameter of the connecting tube 35, thereby forming a stepped structure to block the flow of emulsion back to the emulsion cup 122, resulting in better reliability. This is a rotary connection method.

[0047] Alternatively, the outer periphery of the milk tube 121 protrudes at one end near the connecting tube 35 to form a ring-shaped pattern. The milk tube 121 is inserted into the connecting tube 35 and press-fitted to form a sealed connection. This is called insertion.

[0048] The elastic airbag 4 is inserted into the air reservoir 34 and completely fits and covers the end of the connecting tube 35 near the elastic airbag 4. The elastic airbag 4 is spaced apart from the milk inlet 32, and its open end forms a detachable sealed connection with the open end of the air reservoir 34.

[0049] More preferably, the housing 21 presses against the opening end of the elastic airbag 4 and forms a seal, further enhancing the reliability of the seal. The air nozzle 22 is connected to the elastic airbag 4. The air pump assembly draws air from the elastic airbag 4 through the air nozzle 22, causing the elastic airbag 4 to compress and deform, thereby creating a negative pressure in the air cup 34. The negative pressure sequentially squeezes the breast through the connecting tube 35, the milk tube 121, and the milk cup 122, thereby drawing out the milk. The milk then flows through the milk tube 121 and the connecting tube 35 to the air cup 34, and then flows through the milk inlet 32 ​​at the bottom of the air cup 34 to the milk collection cup 11. When the air pump assembly draws in air, creating negative pressure inside the air tank cup 34, the one-way valve 33 is closed. At this time, the emulsion flows to the bottom of the air tank cup 34. When the air pump assembly stops drawing in air, the elastic airbag 4 returns to its original shape and adheres to the connecting pipe 35 to form a barrier, preventing the emulsion from flowing back into the connecting pipe 35 and avoiding leakage during movement. At the same time, as the negative pressure disappears, the one-way valve 33 loses its suction force, and the liquid emulsion opens the one-way valve 33 by its own gravity and flows into the milk collection cup 11.

[0050] To facilitate smoother emulsion collection, the stabilizing plate 3 further includes an emulsion collecting groove 36 extending downward from the plate body 31 into the emulsion collecting cup body 11. The air groove cup 34 is arranged around the emulsion collecting groove 36, the emulsion inlet 32 ​​penetrates the bottom of the emulsion collecting groove 36, and the one-way valve 33 is fixed to the bottom of the emulsion collecting groove 36. The design of the emulsion collecting groove 36 also allows the air groove cup 34 to better fit with the elastic airbag 4, which is more conducive to draining the emulsion in the air groove cup 34, and also better fits with the one-way valve 33, increasing airtightness.

[0051] In this embodiment, the one-way valve 33 is made of an elastic material. Specifically, the one-way valve 33 includes a connecting post 331 penetrating the bottom of the milk collection groove 36, a retaining wall 332 formed on the side of the connecting post 331 near the elastic airbag 4, and a valve tongue 333 formed on the side of the connecting post 331 away from the elastic airbag 4. The valve tongue 333 fits against the bottom of the milk collection groove 36 on the side away from the elastic airbag 4 and completely covers the milk inlet 32.

[0052] Of course, the one-way valve 33 can also be a duckbill structure made of elastic material, and the principle is the same.

[0053] More preferably, the bottom of the emulsion collecting groove 36 is higher in the middle and lower on the sides, and the emulsion inlet 32 ​​is located in the peripheral area of ​​the bottom of the emulsion collecting groove 36. This further improves the smoothness of emulsion collection.

[0054] In this embodiment, the elastic airbag 4 is located within the milk collection groove 36. A guide groove 41 is provided on the outer periphery of the elastic airbag 4, extending from the bottom of the elastic airbag 4 to its opposite sides. The portion of the guide groove 41 located on the side of the elastic airbag 4 is opposite to the connecting tube 35. The guide groove 41 effectively prevents incorrect contraction of the elastic airbag 4, guiding it to contract at the accurate position to open the communication channel between the connecting tube 35 and the milk collection groove 36, resulting in better milk suction reliability.

[0055] Compared with related technologies, the breast pump of the present invention features a milk collection cup made of elastic material for collecting milk, along with a milk collection cup body and a breast shield. A detachable sealed connection is formed by a stabilizing plate covering the opening end of the milk collection cup body, creating a sealed environment for collecting milk. The milk tubes of the breast shield are detachably sealed to the connecting pipe of the stabilizing plate. An air groove cup on the stabilizing plate communicates with the connecting pipe, and an elastic airbag is installed inside the air groove cup. An air pump assembly draws gas from the elastic airbag to create negative pressure, thereby creating negative pressure in the connecting pipe and milk tubes, achieving the purpose of milk extraction. Because air extraction and milk extraction share the channel formed by the connecting pipe and milk tubes, the number of parts is reduced, resulting in a simple structure and easy cleaning. Furthermore, the air groove cup containing the elastic airbag is directly connected to the milk inlet, allowing milk to enter the milk collection cup body more smoothly. At the same time, because the milk collection cup body and the stabilizing plate are installed vertically, mold marks or installation marks can be hidden at the joint, resulting in a more aesthetically pleasing appearance.

[0056] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A breast pump, characterized in that, include: A breast cup, made of elastic material, includes a breast cup body and a bra fixed to the front of the breast cup body; the bra includes a breast tube fixed to the open end of the breast cup body and extending horizontally, and a flared breast cup extending from the outer end of the breast tube to the outside of the breast cup body. The outer casing assembly includes a housing that covers the opening end of the milk collection cup and forms a detachably connected housing, an air nozzle that passes through the housing, and an air pump assembly, wherein the air pump assembly is connected to the air nozzle via an air pipe. A stabilizing plate, comprising a plate body with a cover plate at the open end of the milk collection cup and its periphery detachably connected to the milk collection cup body, a milk inlet penetrating the plate body and communicating with the milk collection cup body, a one-way valve covering the milk inlet, an air groove cup extending upward from the plate body and surrounding the milk inlet, and a connecting pipe penetrating the front of the air groove cup and extending along an axial direction perpendicular to the air groove cup to the open end of the milk collection cup body; the milk tube and the connecting pipe forming a detachable sealed connection; and... An elastic airbag is inserted into the air reservoir cup and completely fits and covers the end of the connecting tube near the elastic airbag; the elastic airbag is spaced apart from the milk inlet and its open end forms a detachable sealed connection with the open end of the air reservoir cup; the housing is pressed against the open end of the elastic airbag to form a seal, and the air nozzle is connected to the elastic airbag.

2. The breast pump according to claim 1, characterized in that, The milk collection cup, the milk tube, and the milk cup are an integral injection-molded structure.

3. The breast pump according to claim 1, characterized in that, The outer circumference of the milk tube is provided with an external thread, and the inner circumference of the connecting tube is provided with an internal thread. The external thread and the internal thread are screwed together to form a seal.

4. The breast pump according to claim 1, characterized in that, The outer periphery of the milk tube protrudes at one end near the connecting tube to form a ring-shaped pattern. The milk tube is inserted into the connecting tube and pressurized to form a sealed connection.

5. The breast pump according to claim 1, characterized in that, The stabilizing plate also includes a milk collection groove extending downward from the plate body into the milk collection cup body, the air groove cup is arranged around the milk collection groove, the milk inlet is arranged through the bottom of the milk collection groove, and the one-way valve is fixed to the bottom of the milk collection groove.

6. The breast pump according to claim 5, characterized in that, The one-way valve is made of an elastic material and includes a connecting post that penetrates the bottom of the milk collection groove, a retaining wall formed on the side of the connecting post near the elastic air bladder, and a valve tongue formed on the side of the connecting post away from the elastic air bladder. The valve tongue fits against the bottom of the milk collection groove on the side away from the elastic air bladder and completely covers the milk inlet.

7. The breast pump according to claim 6, characterized in that, The bottom of the milk collection groove is high in the middle and low on the sides, and the milk inlet is located in the peripheral area of ​​the bottom of the milk collection groove.

8. The breast pump according to claim 5, characterized in that, The elastic airbag is located within the milk collection groove. A guide groove is provided on the outer periphery of the elastic airbag. The guide groove extends from the bottom of the elastic airbag to its two opposite sides, and the portion of the guide groove located on the side of the elastic airbag is opposite to the connecting tube.

9. The breast pump according to claim 1, characterized in that, The air pump assembly includes an air pump and a shut-off valve respectively installed in the housing. The air nozzle includes an air outlet and an air inlet respectively connected to the elastic airbag. The air pump is connected to the air outlet through an air pipe for drawing air from the elastic airbag. The shut-off valve is connected to the air inlet through an air pipe for introducing external air into the elastic airbag when the air pump stops working.

10. The breast pump according to claim 1, characterized in that, The periphery of the plate is recessed on the side near the milk collection cup, and a milk pouring groove is formed in the direction away from the milk collection cup. When the plate is placed on the milk collection cup, it together with the milk pouring groove forms a milk pouring outlet.

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