Breast pump

Abstract

The utility model relates to the technical field of mother and baby products, in particular to a breast pump, and particularly relates to a milk sucking device of the breast pump. The breast pump comprises a shell and a breast pumping assembly, the breast pumping assembly is provided with a breast pumping part, a suction cup and a one-way circulation assembly, the breast pumping part is provided with a sealing piece, the sealing piece and the breast pumping part are integrally formed, and a negative pressure cavity and a container inner cavity are formed between the breast pumping assembly and the shell. The one-way circulating assembly is arranged in the container, so that the milk enters and is stored in the inner cavity of the container from the milk sucking part through the one-way circulating assembly; the sealing piece is used for fitting with breasts and sealing the inner cavity of the container. According to the utility model, the sealing element and the breast pumping part are integrally formed, so that the structure is simplified, the sealing is ensured, and the comfort of a user is improved; and the detachable suction cup is arranged, so that the individual requirements of users are met, meanwhile, the suction cup is convenient to clean and disinfect, and the sanitation and durability are improved.

Description

Technical Field

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

[0002] A breast pump is a device used to help a mother extract milk from her breasts and is widely used by nursing mothers. Its primary function is to assist the mother in storing milk when it's inconvenient to directly breastfeed her baby, or to facilitate the proper drainage of excess milk to avoid breast tenderness. Furthermore, a breast pump can help maintain milk production, especially when the mother needs to be away from her baby for extended periods, ensuring the baby continues to receive the nourishing benefits of breast milk.

[0003] Breast pumps currently on the market generally consist of two parts: a suction device and a milk storage container. However, existing breast pumps have several drawbacks. First, the suction cup is typically fixed and non-detachable, making cleaning and disinfection inconvenient and potentially causing hygiene issues with long-term use. Secondly, comfort during breastfeeding is another area where existing breast pumps need improvement. Currently, only the suction cup relieves pressure on the breasts, which is acceptable for short-term use. However, prolonged use can cause discomfort or even pain in the breasts, impacting the user experience and efficiency of the breast pump.

[0004] Therefore, it is necessary to develop a breast pump that can not only ensure the hygiene and durability of the suction cup part, but also provide a more comprehensive comfort experience to alleviate breast discomfort during long-term use. Utility Model Content

[0005] In view of the above-mentioned problem that the suction cup in the prior art is non-detachable and not comfortable enough, the technical solution adopted by the present invention to solve the technical problem is:

[0006] A breast pump comprises a shell and a milk suction assembly connected to the shell, wherein the milk suction assembly is provided with a milk suction part for connecting to the shell, a suction cup detachably connected to the milk suction part, and a one-way circulation assembly connected to the milk suction part, the milk suction part is provided with a seal, and the seal is integrally formed with the milk suction part, a negative pressure chamber and a container cavity are provided between the milk suction assembly and the shell, by reducing the air pressure in the negative pressure chamber, milk flows from the milk suction part through the one-way circulation assembly into and is stored in the container cavity, and the seal is used to seal the container cavity while adhering to the breast.

[0007] Furthermore, in the breast pump described in the solution, a mating end is provided on the inner side of the seal, the milk suction part is further provided with a connecting body connected to the seal, the connecting body is provided with a first mounting portion on a side close to the seal, a fixed end is provided on the outer side of the first mounting portion, the seal is soft rubber, the mating end is matched with the fixed end, and the seal and the connecting body are integrally formed by rubber encapsulation.

[0008] Furthermore, the scheme describes a breast pump, wherein the suction cup is circumferentially provided with a fourth connecting end, the first mounting portion is further provided with a first mounting cavity, the suction cup is made of soft rubber, the fourth connecting end is cooperatively connected to the inner wall of the first mounting cavity, so that the milk suction portion and the suction cup are detachably connected, the suction cup is further provided with a proximal end close to the side of the breast, the proximal end is trumpet-shaped, a first buffer zone is provided between the proximal end and the milk suction portion, the first mounting cavity is further provided with a circumferentially arranged fixed step, the fourth connecting end is provided with a fixed groove, the fixed step and the fixed groove cooperate to prevent deformation of the suction cup.

[0009] Furthermore, in the breast pump described in the solution, the mating end includes a first mating end, a second mating end, and a mating groove located between the first mating end and the second mating end, and the fixed end extends into the mating groove and abuts against the first mating end and the second mating end respectively, so that the connecting body and the sealing member are fixedly connected.

[0010] Furthermore, in the breast pump described in the solution, the shell is provided with a first connecting end on one side of the milk suction component, and the outer side of the sealing member is further provided with a first connecting groove and a first sealing end, the first connecting end is cooperated with the first connecting groove to connect the milk suction component to the shell, and the first sealing end is cooperated with the first connecting end to achieve sealing of the container cavity.

[0011] Furthermore, in the breast pump described in the scheme, the connecting body is also provided with a milk channel passing through the first mounting portion and connected to the one-way circulation component, a second mounting cavity located on one side of the milk channel and away from the one-way circulation component, and a connecting hole connecting the milk channel and the second mounting cavity, the milk suction component also includes a deformation component located in the second mounting cavity and connected to the connecting body, the deformation component is soft rubber, the second mounting cavity and the shell enclose the negative pressure chamber, the shell is further provided with a joint connected to the negative pressure chamber, and the deformation component is used to prevent the milk from flowing out of the shell through the negative pressure chamber.

[0012] Furthermore, in the breast pump described in the scheme, the suction cup is further provided with a blocking step on one side of the milk channel, the fourth connecting end is provided with a third sealing end and a deformation zone, the blocking step extends into the milk channel to prevent milk from flowing back, the third sealing end and the deformation zone enable the suction cup to be tightly connected to the milk suction part, and a second buffer zone is provided between the blocking step and the milk channel.

[0013] Furthermore, in the breast pump described in the scheme, the second mounting cavity is provided with a first snap groove, the deformation component is provided with a deformation cavity, a first snap portion located outside the deformation cavity, and a second connecting end located inside the deformation cavity, the shell extends a second connecting groove toward the inner cavity of the container, the first snap groove is snap-connected with the first snap portion so that the connecting body and the deformation component are cooperatively connected, the second connecting end and the second connecting groove are cooperatively connected so that the deformation component and the shell are cooperatively connected, and the negative pressure chamber is enclosed by the deformation cavity and the shell.

[0014] Furthermore, in the breast pump described in the solution, the shell is also provided with a liquid pouring port and a placement seat away from the liquid pouring port, the negative pressure chamber is located on the side of the liquid pouring port, the one-way flow component is located on the side away from the liquid pouring port, and the shell is arranged in a bowl shape.

[0015] Furthermore, in the breast pump described in the solution, the first connecting end is located on one side of the liquid pouring port and extends a second snap portion, the sealing member is located at the first sealing end and is also provided with a second snap groove, the second snap portion cooperates with the second snap groove to fix the direction of the milk suction assembly.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. By integrating the seal with the suction part, the present invention not only simplifies the structure of the breast pump but also better ensures the sealing of the inner cavity of the container. The seal also allows the suction part to better fit around the breast, thereby increasing comfort during use and reducing the discomfort and pain that may be caused by prolonged suction.

[0018] 2. The utility model provides a detachable suction cup, so that users can replace the suction cups of different sizes according to personal needs to obtain a more comfortable milk sucking experience. At the same time, the detachable setting of the suction cup also facilitates the user to thoroughly clean and disinfect it, thereby improving the hygiene and durability of the breast pump and ensuring hygiene issues during use.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of an exploded appearance of a breast pump according to the present invention.

[0021] Figure 2 The figure is a schematic cross-sectional view of the appearance of a breast pump of the present invention.

[0022] Figure 3 The utility model is a schematic cross-sectional view of the appearance of a milk suction component of a breast pump.

[0023] Figure 4 The utility model is a partial schematic cross-sectional view of the appearance of a milk suction component of a breast pump.

[0024] Figure 5 The figure is a schematic cross-sectional view of the shell of a breast pump according to the present invention.

[0025] Figure 6 The figure is a schematic diagram of the outer appearance of a breast pump shell of the present invention.

[0026] Figure 7 The utility model is a schematic diagram of the appearance of a milk suction component of a breast pump. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0028] like Figure 1-7 A breast pump is shown, comprising a shell 2 and a milk suction assembly 1 connected to the shell 2, wherein the milk suction assembly 1 is provided with a milk suction part 11 for connecting to the shell 2, a suction cup 15 detachably connected to the milk suction part 11, and a one-way circulation assembly 14 connected to the milk suction part 11, the milk suction part 11 is provided with a seal 3, and the seal 3 is integrally formed with the milk suction part 11, a negative pressure chamber 4 and a container cavity 21 are provided between the milk suction assembly 1 and the shell 2, by reducing the air pressure in the negative pressure chamber 4, milk can enter the container cavity 21 from the milk suction part 11 through the one-way circulation assembly 14, and be stored, the seal 3 is used to seal the container cavity 21 while adhering to the breast.

[0029] The present invention integrates the sealing member 3 and the milk suction portion 11 into one piece, which not only simplifies the structure of the breast pump but also better ensures the sealing of the container cavity 21. At the same time, the sealing member 3 also allows the milk suction portion 11 to be better integrated with the periphery of the breast, thereby increasing the comfort during use and reducing the discomfort and pain that may be caused by prolonged milk suction.

[0030] The utility model provides a detachable suction cup 15, so that the user can replace the suction cup 15 of different sizes according to personal needs to obtain a more comfortable milk sucking experience. At the same time, the detachable setting of the suction cup 15 also facilitates the user to thoroughly clean and disinfect it, thereby improving the hygiene and durability of the breast pump and ensuring hygiene issues during use.

[0031] Specifically, the present invention forms the sealing member 3 and the milk suction part 11 as one body, which not only simplifies the overall structure of the breast pump, reduces the number of parts and assembly complexity, and reduces production costs, but also significantly enhances the sealing effect of the container cavity 21, effectively preventing milk leakage; further, the sealing member 3 is arranged on the periphery of the milk suction part 11, which enables the milk suction part 11 to better fit closely with the periphery of the breast, so that the milk suction part 11 can form a soft contact pressure on the breast during the user's milk suction process, thereby greatly improving the user's comfort, especially when used for a long time, helping to relieve breast discomfort and pain; further, the sealing member 3 and the milk suction part 11 are formed as one body, This arrangement improves the overall sealing of the breast pump and avoids the problem of air leakage caused by the falling off or displacement of the seal 3. This arrangement allows the lotion to enter and be stored in the container cavity 21 more smoothly through the one-way circulation component 14, while preventing the leakage of the lotion during storage, ensuring the hygienic storage of the lotion and improving the milk suction efficiency of the breast pump; further, the detachable arrangement of the suction cup 15 allows the user to replace the suction cup 15 of different sizes according to personal comfort requirements, thereby obtaining a more comfortable milk suction experience; further, the detachable arrangement of the suction cup 15 also makes it convenient for the user to thoroughly clean and disinfect the suction cup 15, ensuring the hygiene of the breast pump and protecting the health and safety of the user during use.

[0032] Further, such as Figure 1-7 A breast pump is shown, wherein a mating end 31 is provided on the inner side of the seal 3, and the milk suction part 11 is further provided with a connecting body 12 connected to the seal 3. The connecting body 12 is provided with a first mounting portion 126 on the side close to the seal 3, and a fixed end 112 is provided on the outer side of the first mounting portion 126. The seal 3 is made of soft rubber, and the mating end 31 cooperates with the fixed end 112. The seal 3 and the connecting body 12 are integrally formed by rubber encapsulation.

[0033] The utility model ensures that the seal 3 can be firmly fixed to the shell 2 during the production process by encapsulating the seal 3 and the connecting body 12 in an integrated manner, reducing the number of independent components, thereby simplifying the assembly process of the product and improving production efficiency and product consistency; further, this arrangement makes the connection between the seal 3 and the connecting body 12 more secure, avoiding the problem of milk leakage caused by loosening or falling off of the seal 3, and further improving the sealing performance of the breast pump; further, the encapsulated integrated molding also makes the transition between the seal 3 and the connecting body 12 smoother, forming a seamless connection transition surface, which This arrangement not only improves the aesthetics of the breast pump, but also reduces dead angles during cleaning, making it easier for users to clean and maintain it after use. Furthermore, by providing a mating end 31 on the seal 3 and a fixed end 112 on the connecting body 12, and by matching the mating end 31 and the fixed end 112, not only can the seal 3 be better fixed, but this arrangement also provides a larger contact area for the encapsulation process, making the seal 3 and the connecting body 12 more tightly combined. Furthermore, the connecting body 12 is preferably made of plastic, and the two are integrally formed by encapsulation, which can better combine them and further improve the sealing performance of the breast pump.

[0034] Further, such as Figure 1-7 A breast pump is shown, wherein the suction cup 15 is circumferentially provided with a fourth connecting end 151, the first mounting portion 126 is further provided with a first mounting cavity 127, the suction cup 15 is made of soft rubber, and the fourth connecting end 151 is cooperated and connected with the inner wall of the first mounting cavity 127, so that the milk suction part 11 and the suction cup 15 are detachably connected, the suction cup 15 is further provided with a proximal end 153 close to the side of the breast, the proximal end 153 is arranged in a trumpet shape, and a first buffer zone 154 is provided between the proximal end 153 and the milk suction part 11, the first mounting cavity 127 is further provided with a circumferentially arranged fixing step 1271, the fourth connecting end 151 is provided with a fixing groove 158, and the fixing step 1271 and the fixing groove 158 cooperate to prevent deformation of the suction cup 15.

[0035] The fourth connecting end 151 of the present invention is connected to the inner wall of the first mounting cavity 127 by interference fit, so that the suction cup 15 can be firmly fixed on the milk suction part 11, and at the same time can be easily disassembled and replaced. This arrangement not only ensures that the suction cup 15 will not fall off easily during use, but also can be easily cleaned and disinfected when needed, so as to keep the breast pump hygienic. Furthermore, the milk suction part 11 and the suction cup 15 are detachably connected. This arrangement allows the user to replace the suction cup 15 of different types or sizes as needed to meet different usage requirements, thereby enhancing the applicability and flexibility of the breast pump. Furthermore, the proximal end of the suction cup 15 153 is arranged in a trumpet-shaped manner, which helps the breast to fit the suction cup 15 more comfortably and reduces the discomfort caused to the breast during use; further, the first buffer zone 154 between the proximal end 153 and the milk suction part 11 can effectively reduce the direct hard contact between the breast and the breast pump during milk suction, thereby reducing the pain that may be caused to the breast during milk suction and improving the user's milk suction experience; further, the fixing step 1271 and the fixing groove 158 cooperate with this arrangement to better fix the suction cup 15, avoid radial deformation of the suction cup 15 during milk suction, and ensure the stability of the milk suction process and the durability of the suction cup.

[0036] Further, such as Figure 1-7 In the breast pump shown, the mating end 31 is provided with a first mating end 32, a second mating end 33, and a mating groove 38 located between the first mating end 32 and the second mating end 33. The fixed end 112 extends into the mating groove 38 and abuts against the first mating end 32 and the second mating end 33, respectively, so that the connecting body 12 and the sealing member 3 are fixedly connected.

[0037] The utility model extends the fixed end 112 on the connecting body 12 into the matching groove 38 on the seal 3 and abuts against the first matching end 32 and the second matching end 33 respectively, so that the connection between the seal 3 and the connecting body 12 is tighter and firmer. This arrangement improves the stability of the connection between the seal 3 and the connecting body 12 and avoids the seal 3 from loosening and falling off during use. Furthermore, this arrangement allows a larger contact area between the seal 3 and the connecting body 12, so that the seal 3 can be more effectively fitted on the connecting body 12, ensuring the seal 3 and The sealing between the connecting bodies 12 effectively prevents the leakage of emulsion and ensures the hygiene and safety of the emulsion during milk extraction and storage. Furthermore, the setting of the fixed end 112 provides a key processing part for the subsequent encapsulation process on the connecting body 12. This part enables the seal 3 and the connecting body 12 to be more firmly combined together, and the encapsulation material can be more evenly covered in the connection area between the seal 3 and the connecting body 12 to form a seamless connection surface, which not only enhances the bonding strength between the seal 3 and the connecting body 12, but also further improves the overall sealing performance of the breast pump.

[0038] Further, such as Figure 1-7 In the breast pump shown, the shell 2 is provided with a first connecting end 211 on one side of the milk suction component 1, and the outer side of the sealing member 3 is further provided with a first connecting groove 34 and a first sealing end 37. The first connecting end 211 is connected with the first connecting groove 34 to connect the milk suction component 1 with the shell 2, and the first sealing end 37 is connected with the first connecting end 211 to achieve sealing of the container cavity 21.

[0039] In the present invention, the housing 2 and the milking assembly 1 are connected by pressing the first connecting end 211 into the first connecting groove 34 for a squeeze-fit connection. This arrangement enables the milking assembly 1 to be quickly and firmly connected to the housing 2, thereby improving the installation efficiency of the milking assembly 1 and the housing 2. Furthermore, the first connecting end 211 squeezes the first sealing end 37. Due to the elasticity of the sealing member 3, this squeeze-fit further enhances the sealing of the container cavity, effectively preventing milk leakage.

[0040] Further, such as Figure 1-7A breast pump is shown, wherein the connecting body 12 is further provided with a milk channel 121 passing through the first mounting portion 126 and communicating with the one-way circulation component 14, a second mounting cavity 123 located on one side of the milk channel 121 and away from the one-way circulation component 14, and a connecting hole 122 communicating with the milk channel 121 and the second mounting cavity 123. The milk suction component 1 also includes a deformation component 5 located in the second mounting cavity 123 and connected to the connecting body 12. The deformation component 5 is made of soft rubber. The second mounting cavity 123 and the shell 2 enclose the negative pressure chamber 4. The shell 2 is further provided with a joint 6 communicating with the negative pressure chamber 4. The deformation component 5 is used to prevent milk from flowing out of the shell 2 through the negative pressure chamber 4.

[0041] The working principle of the present invention is to connect the connector 6 to an external vacuum generating device, reduce the pressure in the negative pressure chamber 4 through the connector 6, reduce the pressure in the second mounting chamber 123 and the milk passage 121, and generate suction on the breast through the pressure difference, so that the milk can smoothly enter the milk passage 121 from the breast, and then enter and be stored in the container cavity 21 through the one-way circulation component 14; further, this negative pressure-driven milk suction method reduces the noise generated by traditional mechanically driven breast pumps, and improves the comfort and quietness during use; further, the deformation component 5 is made of soft rubber material, which effectively blocks the milk from flowing out of the negative pressure chamber 4 to the shell 2, while ensuring that the negative pressure chamber 4 normally generates negative pressure, further improving the sealing and safety of the breast pump.

[0042] Further, such as Figure 1-7 A breast pump is shown, wherein the suction cup 15 is further provided with a blocking step 152 on one side of the milk passage 121, the fourth connecting end 151 is provided with a third sealing end 155 and a deformation zone 156, the blocking step 152 extends into the milk passage 121 to prevent milk from flowing back, the third sealing end 155 and the deformation zone 156 enable the suction cup 15 to be tightly connected to the milk suction part 11, and a second buffer zone 157 is provided between the blocking step 152 and the milk passage 121.

[0043] The present invention provides a blocking step 152 on the suction cup 15, so that after the suction cup 15 is matched with the milk suction part 11, a boss is formed in the milk passage 121. This arrangement ensures that during the milk suction process, the milk remaining in the milk passage 121 can be effectively blocked by the blocking step 152 and will not flow back to the breast due to gravity or other external forces, thereby effectively preventing the milk from flowing back. Furthermore, a third sealing end 155 is provided on the fourth connecting end 151, so that the size of the fourth connecting end 151 is larger than the inner diameter of the first mounting cavity 127, so as to achieve an interference fit between the fourth connecting end 151 and the first mounting cavity 127, thereby improving the milk suction effect. The sealing performance of the connection is improved; further, the setting of the deformation zone 156 allows the fourth connection end 151 to undergo greater elastic deformation during the interference fit process, so that when the suction cup 15 is subjected to external pressure or internal negative pressure, the connection will not become loose, thereby improving the connection stability between the suction cup 15 and the milk suction part 11; further, the second buffer zone 157 provided between the blocking step 152 and the milk passage 121 can effectively reduce the direct hard contact between the breast and the breast pump during milk suction, and will not press the nipple, thereby reducing the pain and discomfort that may be caused to the breast during milk suction, and improving the user's milk suction experience.

[0044] Further, such as Figure 1-7 A breast pump is shown, wherein the second mounting cavity 123 is provided with a first snap groove 124, the deformable component 5 is provided with a deformable cavity 53, a first snap portion 51 located outside the deformable cavity 53, and a second connecting end 52 located inside the deformable cavity 53, the shell 2 extends a second connecting groove 22 toward the container cavity 21, the first snap groove 124 is snap-connected with the first snap portion 51, so that the connecting body 12 and the deformable component 5 are cooperatively connected, the second connecting end 52 and the second connecting groove 22 are cooperatively connected, so that the deformable component 5 and the shell 2 are cooperatively connected, and the negative pressure chamber 4 is enclosed by the deformable cavity 53 and the shell 2.

[0045] The present invention is connected to the first snapping groove 124 by snapping with the first snapping portion 51, so that the deformation component 5 can be firmly fixed on the connecting body 12, ensuring that the connection between the deformation component 5 and the connecting body 12 will not loosen or fall off during the milk pumping process, thereby improving the overall stability of the breast pump; further, the second connecting end 52 on the deformation component 5 is connected to the second connecting groove 22 on the shell 2 by interference fit, so that the connection between the deformation component 5 and the shell 2 is tighter, and the deformation cavity 53 and the shell 2 form a negative pressure cavity 4 with better sealing, which further improves the negative pressure effect of the breast pump and ensures that the milk can be effectively extracted and stored in the container cavity 21; further, through the setting of this snap and interference fit connection, the assembly process of the breast pump is simplified, the efficiency of installation and disassembly is improved, and the user can install and disassemble more conveniently and quickly.

[0046] Further, such as Figure 1-7 A breast pump is shown, wherein the shell 2 is further provided with a liquid pouring port 23 and a placement seat 24 away from the liquid pouring port 23, the negative pressure chamber 4 is located on the side of the liquid pouring port 23, the one-way flow component 14 is located on the side away from the liquid pouring port 23, and the shell 2 is arranged in a bowl shape.

[0047] The present invention provides a pouring port 23 on the shell 2. In this embodiment, the pouring port 23 is open. This configuration allows the user to more conveniently pour out the milk stored in the container cavity 21 after using the breast pump to express milk, thereby improving the convenience of using the breast pump. Furthermore, a placement seat 24 is provided on the shell 2. This configuration provides a convenient placement method for the user. When the user uses the breast pump to express milk, it is usually necessary to process and store the milk immediately. By providing the placement seat 24, the user can conveniently place the breast pump temporarily on the desktop during the process of processing the milk, thereby preventing the milk from leaking from the pouring port 23 due to the breast pump tipping over. This configuration not only improves the convenience of using the breast pump, but also enhances its use process. Safety in the breast pump; further, the negative pressure chamber 4 is located on the side of the liquid pouring port 23, and the one-way circulation component 14 is located on the side away from the liquid pouring port 23. This arrangement makes the negative pressure chamber 4 away from the one-way circulation component 14, avoiding the vibration generated when the negative pressure in the negative pressure chamber 4 affects the efficiency of the emulsion passing through the one-way circulation component 14; further, the one-way circulation component 14 is located on the side away from the liquid pouring port 23, that is, the one-way circulation component 14 is located on the lower side of the breast pump. This arrangement helps the emulsion to enter the emulsion channel 121 and then pass through the one-way circulation component 14 into the container cavity 21 through its own gravity, further improving the working efficiency of the breast pump; further, the shell 2 is arranged in a bowl shape, which makes the breast pump more stable during use and storage and not easy to tip over.

[0048] Further, such as Figure 1-7 A breast pump is shown, wherein the first connecting end 211 is located on one side of the pouring port 23 and extends from a second snap-fit ​​portion 26, and the sealing member 3 is located at the first sealing end 37 and further has a second snap-fit ​​groove 35, and the second snap-fit ​​portion 26 cooperates with the second snap-fit ​​groove 35 to fix the direction of the milk suction assembly 1.

[0049] The present invention fixes the direction of the milk suction assembly 1 by cooperating with the second buckle portion 26 and the second buckle groove 35. This arrangement enables the milk suction assembly 1 to be accurately positioned during installation, ensuring that its relative position with the shell 2 remains unchanged, thereby avoiding the problem of performance degradation caused by the displacement of the milk suction assembly 1 during use; further, this arrangement not only improves the stability of the breast pump, but also ensures the sealing of the negative pressure chamber 4 by ensuring the relative position of the milk suction assembly 1 and the shell 2, so that the pressure in the negative pressure chamber 4 can be maintained at a stable level during milk suction, thereby preventing the problem of insufficient suction force due to air leakage.

[0050] Further, such as Figure 1-7 In the breast pump shown, the sealing member 3 is further provided with a second sealing end 39 on a side away from the housing 2 .

[0051] The present invention enhances the fit between the seal 3 and the breast by providing the second sealing end 39, so that the breast pump can form a more sealed environment during milk extraction, effectively preventing the entry of air, thereby ensuring a stable pressure in the negative pressure chamber 4; further, this arrangement further improves the milk extraction efficiency, allowing the milk to enter the milk passage 121 more smoothly from the breast, and then be stored in the container cavity 21 through the one-way flow component 14.

[0052] Further, such as Figure 1-7 In the breast pump shown, the housing 2 is further provided with a grasping portion 25 for grasping.

[0053] The utility model provides a convenient gripping point for the user when using the breast pump through the setting of the gripping portion 25, allowing the user to hold the breast pump more firmly, avoiding accidental slipping or falling due to slipping of the hands, and improving the safety of the user when using the breast pump; further, the setting of the gripping portion 25 makes the user more convenient and flexible in operating the breast pump. The user can easily adjust the position and angle of the breast pump through the gripping portion 25 to ensure that the breast pump can better fit the breast and improve the milk suction effect.

[0054] Further, such as Figure 1-7 In the breast pump shown, the housing 2 is further provided with a disassembly hole 215 for disassembling the connector 6 .

[0055] The present invention provides a disassembly hole 215 so that the user can easily disassemble the connector 6 without the need for additional tools or complicated operating steps, thereby simplifying the maintenance process of the breast pump. This arrangement not only improves the user's convenience, but also makes the cleaning and maintenance of the breast pump simpler and more efficient. Furthermore, by providing the disassembly hole 215, the user can easily disassemble the connector 6 for cleaning or replacement when needed, effectively avoiding the problem of damage to the connector 6 caused by improper operation during the disassembly process.

[0056] Further, such as Figure 1-7 In the breast pump shown, the connecting body 12 is further provided with a liquid outlet channel 13 communicating with the milk channel 121. The liquid outlet channel 13 is provided with a third connecting end 131. The one-way circulation component 14 is provided with a third connecting groove 414. The third connecting end 131 is cooperatively connected with the third connecting groove 414, so that the connecting body 12 is cooperatively connected with the one-way circulation component 14.

[0057] The present invention provides a liquid outlet channel 13 on the shell 2, which is used to store milk during the milking process. This arrangement can provide a transitional storage space for the milk during the milking process, preventing the milk from directly reaching the one-way circulation component 14, which would cause the one-way circulation component 14 to be unable to transport a large amount of milk to the container cavity 21 at the same time, resulting in milk accumulation in the milk channel 121, so that the milk can flow more smoothly from the milk suction component 1 into the container cavity 21; further, the third connecting end 131 is connected to the third connecting groove 414 by an interference fit, so that the one-way circulation component 14 can be more firmly fixed to the milk suction part 11, preventing it from falling off during operation, etc., thereby improving the reliability of the breast pump.

[0058] Further, such as Figure 1-7 In the breast pump shown, the milk suction portion 11 is further provided with a disassembly portion 36 located on a side opposite to the pouring port 23 .

[0059] The present invention arranges the disassembly portion 36 on the side opposite to the pouring spout 23. After the user has finished using the breast pump and has poured out the milk in the container cavity 21 through the pouring spout 23, the breast pump can be laid flat. At this time, the disassembly portion 36 is located on the side of the body. This arrangement makes it easier for the user to open the milk suction assembly 1 through the disassembly portion 36 and clean the container cavity 21. At the same time, the position of the disassembly portion 36 also makes the force position for opening the milk suction assembly 1 more ergonomic, so that the user can open the milk suction assembly 1 more easily, which significantly improves the user experience.

[0060] Further, such as Figure 1-7 A breast pump is shown, wherein the proximal end 153 has a diameter of 14-28 mm.

[0061] The present invention designs the diameter of the proximal end 153 of the suction cup 15 to be 14-28 mm, so that the user can replace the suction cup 15 of different sizes according to personal needs to obtain a more comfortable milk sucking experience, and at the same time, the breast pump can provide the user with the best milk sucking experience; further, if the diameter of the proximal end 153 is less than 14 mm, the contact area between the suction cup 15 and the breast will be too small, thereby increasing the local pressure on the breast, causing discomfort or pain in the breast, and the sealing effect may also be poor, resulting in reduced milk sucking efficiency; further, if the diameter of the proximal end 153 is greater than 28 mm, the flare of the proximal end 153 will be too large, resulting in an incomplete fit with the breast, causing air leakage in the breast pump, and affecting the milk sucking effect.

[0062] like Figure 1-7 As shown, the implementation of this embodiment is as follows:

[0063] Example 1:

[0064] In this embodiment, the proximal end 153 of the suction cup 15 has a diameter of 14 mm.

[0065] When the breast pump needs to be installed, first insert the third connection end 131 of the liquid outlet channel 13 into the third connection groove 414 of the one-way circulation component 14 to complete the connection between the connecting body 12 and the one-way circulation component 14. Then, insert the deformation component 5 into the first buckle groove 124 in the second installation cavity 123 of the connecting body 12 through the first buckle portion 51 to complete the connection between the connecting body 12 and the deformation component 5. Then, press the first connection end 211 on the shell 2 into the first connection groove 34 on the seal 3. At the same time, the second buckle groove 35 on the seal 3 and the shell 2 are connected. The second snap-fit ​​portion 26 engages to securely connect the housing 2 and the milking assembly 1 and maintain their relative positions. During this installation process, the first sealing end 37 of the seal 3 presses against the first connecting end 211, sealing the container cavity 21. The second connecting end 52 of the deformation assembly 5 engages with the second connecting groove 22 of the housing 2, and the negative pressure chamber 4 generates a vacuum through the connector 6 on the housing 2. Finally, the fourth connecting end 151 of the suction cup 15 engages with the first mounting cavity 127 of the connecting body 12, securing the suction cup 15 to the milking portion 11, completing assembly.

[0066] When the breast pump is needed, the hand holds the gripping portion 25, connects the connector 6 to the external vacuum generating device, and fits the breast to the suction cup 15 and the second sealing end 39 of the milk suction assembly 1. The vacuum generating device is turned on, and the air pressure in the negative pressure chamber 4 is reduced, generating negative pressure in the negative pressure chamber 4, causing the deformation assembly 5 to begin to deform. At this time, the deformation chamber 53 contracts toward the negative pressure chamber 4, and at the same time, the space connecting the second mounting chamber 123 and the milk passage 121 is increased, so that the pressure in the milk passage 121 is reduced, and at the same time, the milk is blocked from entering the negative pressure chamber 4, thereby preventing the milk from being sucked into the external vacuum generating device through the connector. Due to the effect of the negative pressure, The suction cup 15 can better fit the breast and form suction through the milk channel 121 of the milk suction component 1 to suck the milk out of the breast. The milk enters the liquid outlet channel 13 through the milk channel 121 of the milk suction component 1 and enters the container cavity 21 for storage through the one-way flow component 14 in the liquid outlet channel 13. During this process, the blocking step 152 on the suction cup 15 extends into the milk channel 121, forming a step in the milk channel 121 to prevent the milk from flowing back into the breast. At the same time, the first buffer zone 154 and the second buffer zone 157 also protect the breast, preventing the breast from direct hard contact with the milk suction part 11. After completing the milk pumping process, the breast pump can be placed stably on the table using the placement seat 24 provided on the housing 2. After tidying up the clothes, the milk stored in the container cavity 21 can be poured out through the pouring spout 23. Finally, the milk pump assembly 1 can be removed from the housing 2 through the disassembly portion 36, and the suction cup 15 can be removed from the milk pumping portion 11, and the container cavity 21 and the suction cup 15 can be cleaned.

[0067] Example 2:

[0068] The features of this embodiment are basically the same as those of the first embodiment, except that the diameter of the proximal end 153 of the suction cup 15 in this embodiment is 18 mm.

[0069] Example 3:

[0070] The features of this embodiment are basically the same as those of the first embodiment, except that the diameter of the proximal end 153 of the suction cup 15 in this embodiment is 20 mm.

[0071] Example 4:

[0072] The features of this embodiment are basically the same as those of the first embodiment, except that the diameter of the proximal end 153 of the suction cup 15 in this embodiment is 24 mm.

[0073] Embodiment 5:

[0074] The features of this embodiment are basically the same as those of the first embodiment, except that the diameter of the proximal end 153 of the suction cup 15 in this embodiment is 28 mm.

[0075] The above examples are merely used to further illustrate the technical content of the present invention for easier understanding by the reader. However, they do not limit the implementation of the present invention to these examples. Any technical extension or reinvention based on the present invention is protected by the present invention. The scope of protection of the present invention shall be determined by the claims.

Claims

1. A breast pump comprising a housing (2) and a milking assembly (1) connected to the housing (2), characterized in that: The milk suction assembly (1) is provided with a milk suction portion (11) for connecting to the shell (2), a suction cup (15) detachably connected to the milk suction portion (11), and a one-way circulation assembly (14) connected to the milk suction portion (11); the milk suction portion (11) is provided with a sealing member (3), and the sealing member (3) is integrally formed with the milk suction portion (11); a negative pressure chamber (4) and a container inner cavity (21) are provided between the milk suction assembly (1) and the shell (2); by reducing the air pressure in the negative pressure chamber (4), milk is allowed to enter the container inner cavity (21) from the milk suction portion (11) through the one-way circulation assembly (14) and be stored; the sealing member (3) is used to seal the container inner cavity (21) while being in contact with the breast.

2. A breast pump according to claim 1, characterized in that: The sealing member (3) is provided with a mating end (31) on the inner side, and the sucking portion (11) is further provided with a connecting body (12) connected to the sealing member (3). The connecting body (12) is provided with a first mounting portion (126) on a side close to the sealing member (3), and a fixed end (112) is provided on the outer side of the first mounting portion (126). The sealing member (3) is made of soft rubber, and the mating end (31) is mated with the fixed end (112). The sealing member (3) and the connecting body (12) are integrally formed by rubber encapsulation.

3. A breast pump according to claim 2, characterized in that: The suction cup (15) is provided with a fourth connecting end (151) in the circumferential direction, and the first mounting portion (126) is further provided with a first mounting cavity (127). The suction cup (15) is made of soft rubber, and the fourth connecting end (151) is cooperatively connected with the inner wall of the first mounting cavity (127) so that the milk suction portion (11) and the suction cup (15) are detachably connected. The suction cup (15) is further provided with a proximal end (153) close to the side of the breast, and the proximal end (153) is arranged in a trumpet shape. A first buffer zone (154) is provided between the proximal end (153) and the milk suction portion (11). The first mounting cavity (127) is further provided with a circumferentially arranged fixed step (1271). The fourth connecting end (151) is provided with a fixed groove (158). The fixed step (1271) and the fixed groove (158) cooperate to prevent the suction cup (15) from being deformed.

4. A breast pump according to claim 2, characterized in that: The mating end (31) comprises a first mating end (32), a second mating end (33), and a mating groove (38) located between the first mating end (32) and the second mating end (33); the fixed end (112) extends into the mating groove (38) and abuts against the first mating end (32) and the second mating end (33), respectively, so that the connecting body (12) and the sealing member (3) are fixedly connected.

5. A breast pump according to claim 1, characterized in that: The shell (2) is provided with a first connecting end (211) on one side of the milk suction assembly (1), and the outer side of the sealing member (3) is further provided with a first connecting groove (34) and a first sealing end (37). The first connecting end (211) is connected in cooperation with the first connecting groove (34) so ​​that the milk suction assembly (1) and the shell (2) are connected in cooperation. The first sealing end (37) is connected in cooperation with the first connecting end (211) so as to achieve sealing of the container cavity (21).

6. A breast pump according to claim 2, characterized in that: The connecting body (12) is further provided with a milk passage (121) penetrating the first mounting portion (126) and communicating with the one-way circulation component (14), a second mounting cavity (123) located on one side of the milk passage (121) and away from the one-way circulation component (14), and a connecting hole (122) communicating with the milk passage (121) and the second mounting cavity (123). The milk suction component (1) further comprises a deformation component (5) located in the second mounting cavity (123) and connected to the connecting body (12). The deformation component (5) is made of soft rubber. The second mounting cavity (123) and the housing (2) enclose the negative pressure chamber (4). The housing (2) is further provided with a joint (6) communicating with the negative pressure chamber (4). The deformation component (5) is used to prevent milk from flowing out of the housing (2) through the negative pressure chamber (4).

7. A breast pump according to claim 6, characterized in that: The suction cup (15) is further provided with a blocking step (152) on one side of the milk passage (121). The fourth connecting end (151) is provided with a third sealing end (155) and a deformation zone (156). The blocking step (152) extends into the milk passage (121) to prevent milk from flowing back. The third sealing end (155) and the deformation zone (156) enable the suction cup (15) to be tightly connected to the milk suction portion (11). A second buffer zone (157) is provided between the blocking step (152) and the milk passage (121).

8. The breast pump according to claim 6, characterized in that: The second mounting cavity (123) is provided with a first snap-fit ​​groove (124); the deformation assembly (5) is provided with a deformation cavity (53), a first snap-fit ​​portion (51) located outside the deformation cavity (53), and a second connecting end (52) located inside the deformation cavity (53); the shell (2) extends a second connecting groove (22) toward the inner cavity (21) of the container; the first snap-fit ​​groove (124) is snap-fitted to the first snap-fit ​​portion (51) so that the connecting body (12) and the deformation assembly (5) are connected in a cooperative manner; the second connecting end (52) is connected to the second connecting groove (22) so that the deformation assembly (5) and the shell (2) are connected in a cooperative manner; and the negative pressure cavity (4) is enclosed by the deformation cavity (53) and the shell (2).

9. The breast pump according to claim 5, characterized in that: The shell (2) is further provided with a liquid pouring port (23) and a placement seat (24) on a side away from the liquid pouring port (23); the negative pressure chamber (4) is located on one side of the liquid pouring port (23); the one-way flow component (14) is located on a side away from the liquid pouring port (23); and the shell (2) is arranged in a bowl shape.

10. A breast pump according to claim 9, characterized in that: The first connecting end (211) is located on one side of the liquid pouring port (23) and extends from a second snap-fit ​​portion (26). The sealing member (3) is located at the first sealing end (37) and is further provided with a second snap-fit ​​groove (35). The second snap-fit ​​portion (26) cooperates with the second snap-fit ​​groove (35) to fix the direction of the milk suction assembly (1).

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