Breast pump and breast pumping arrangement thereof

Abstract

The utility model discloses a kind of breast pump and its breast pumping device, wherein the breast pumping device includes integrated device main body, back cover and feeding bottle, and the breast pumping device has negative pressure cavity, wherein the device main body has space variable breast pumping cavity and selectively communicated milk discharge channel in the breast pumping cavity, the back cover has gas passage, the back cover is installed in the rear of the device main body, the negative pressure cavity is formed between the device main body and the back cover, the gas passage of the back cover is communicated with the negative pressure cavity, the pressure state of the breast pumping cavity and the communication state of the milk discharge channel change with the change of the pressure state of the negative pressure cavity, the feeding bottle is detachably installed in the back cover, when the feeding bottle is installed in the back cover, the mouth of the feeding bottle is along and leans on the device main body, and the milk discharge channel can be communicated with the breast pumping cavity and the milk storage cavity of the feeding bottle.

Description

Technical Field

[0001] This utility model relates to the field of maternal and infant products, and in particular to a breast pump and its pumping device. Background Technology

[0002] The inventor disclosed a breast pumping device in Chinese invention patent application publication number CN118873774A, in which the supporting shell, negative pressure forming part and horn cover adopt a split design. That is, the supporting shell, negative pressure forming part and horn cover are injection molded by different molds and then assembled. Therefore, the split design of the breast pumping device has the problems of high cost and low production efficiency. Utility Model Content

[0003] One objective of this invention is to provide a breast pump and its pumping device, wherein the main body of the pumping device is an integral piece, which helps to reduce the production cost and improve the production efficiency of the pumping device.

[0004] One objective of this invention is to provide a breast pump and its pumping device, wherein when the bottle of the pumping device is installed on the back cover, the rim of the bottle abuts against the main body of the device. In this way, the main body of the device can provide pre-pressure to the bottle to prevent the bottle from loosening. At the same time, the main body of the device can prevent gaps from forming between the main body of the device and the rim of the bottle, thereby ensuring that milk is reliably stored in the milk storage chamber of the bottle.

[0005] One objective of this invention is to provide a breast pump and its pumping device, wherein the surface of the horn cover of the pumping device for defining the horn space is a concave arc surface, so that the horn cover can be self-adhesive to the breast to achieve the "naked suction" function.

[0006] According to one aspect of this utility model, a breast pumping device is provided, comprising an integral device body, a back cover, and a bottle. The breast pumping device has a negative pressure chamber, wherein the device body has a spatially variable breast pumping chamber and a milk discharge channel selectively connected to the breast pumping chamber, the back cover has a gas channel, the back cover is installed at the rear of the device body, the negative pressure chamber is formed between the device body and the back cover, the gas channel of the back cover is connected to the negative pressure chamber, the pressure state of the breast pumping chamber and the connectivity state of the milk discharge channel change with the pressure state of the negative pressure chamber, the bottle is detachably installed on the back cover, and when the bottle is installed on the back cover, the rim of the bottle abuts against the device body, and the milk discharge channel can connect the breast pumping chamber and the milk storage chamber of the bottle.

[0007] According to one embodiment of the present invention, the main body of the device includes a cylindrical body, a deformable part, a horn cover, and a backing part. The deformable part is integrally formed at the rear of the cylindrical body, the horn cover is integrally formed at the front of the cylindrical body, the backing part is integrally formed at the bottom of the cylindrical body, the milk suction chamber is formed between the cylindrical body and the deformable part, and the milk discharge channel extends from the inner wall of the cylindrical body to the abutting surface of the backing part. The rear cover is installed on the cylindrical body, and the negative pressure chamber is formed between the deformable part and the rear cover.

[0008] According to one embodiment of the present invention, the inner wall of the main body of the device for forming the milk suction cavity extends obliquely from the connection position of the horn cover and the cylinder towards the direction of the deformed part.

[0009] According to one embodiment of the present invention, the main body of the device includes a cylindrical body, a deformable portion, and abutting portion. The deformable portion is integrally formed at the rear of the cylindrical body, and the abutting portion is integrally formed at the bottom of the cylindrical body. The milk suction chamber is formed between the cylindrical body and the deformable portion. The milk discharge channel extends from the inner wall of the cylindrical body to the abutting surface of the abutting portion. The rear cover is installed on the cylindrical body, and the negative pressure chamber is formed between the deformable portion and the rear cover. The milk suction device also includes a horn cover, which is installed at the front of the cylindrical body.

[0010] According to one embodiment of the present invention, the horn cover includes a horn portion and an assembly portion extending rearward and outward from the rear of the horn portion, the assembly portion being mounted on the front of the cylinder.

[0011] According to one embodiment of the present invention, the cylinder has a cylinder hook platform, and the mounting portion of the horn cover has a mounting hook platform. The mounting hook platform protrudes circumferentially from the mounting portion, wherein the mounting hook platform of the mounting portion hooks the cylinder hook platform of the cylinder to install the mounting portion at the front of the cylinder.

[0012] According to one embodiment of the present invention, the main body of the device includes a panel portion, which is integrally formed on the cylindrical body and surrounds the middle part of the cylindrical body, wherein the edge of the rear cover is mounted on the edge of the panel portion.

[0013] According to one embodiment of the present invention, the rear cover includes a cover shell, an inner abutment ring arm, and an assembly ring body. The inner abutment ring arm extends integrally into the middle of the cover shell, and the assembly ring body is integrally formed at the bottom of the cover shell. The inner abutment ring arm abuts against the cylindrical body in a sealing manner to form a negative pressure cavity between the rear cover and the deformed portion. The assembly ring body is located below the abutment portion, and the milk discharge channel corresponds to the annular channel of the assembly ring body. The edge of the cover shell is mounted to the edge of the panel portion. The mouth of the bottle passes through the annular channel of the assembly ring body and is mounted on the assembly ring body. The mouth of the bottle abuts against the abutment surface of the abutment portion.

[0014] According to one embodiment of the present invention, the rear cover includes an outer abutment ring arm, the outer abutment ring arm integrally extending from the middle of the cover shell and located outside the inner abutment ring arm, wherein the outer abutment ring arm is mounted on the inner side of the panel portion.

[0015] According to one embodiment of the present invention, the milk suction device includes a duckbill valve, which is disposed on the main body of the device and is used to control the connection state of the milk discharge channel.

[0016] According to one embodiment of the present invention, the duckbill valve is installed on the abutment portion of the main body of the device.

[0017] According to one embodiment of the present invention, the duckbill valve and the main body of the device are integrally formed.

[0018] According to one embodiment of the present invention, the main body of the device and the duckbill valve are integrally made of silicone material.

[0019] According to one embodiment of the present invention, the abutting portion has a vent hole that extends from the abutting surface to the side of the abutting portion opposite to the abutting surface.

[0020] According to one embodiment of the present invention, the abutting portion has an exhaust groove, which is provided on the side of the abutting portion opposite to the abutting surface, and the exhaust groove extends from the exhaust hole to the edge of the abutting portion.

[0021] According to one embodiment of the present invention, the rear cover has a vent groove, and the vent groove of the rear cover is connected to the vent hole of the abutment portion.

[0022] According to one embodiment of the present invention, the abutting part has an exhaust groove, the exhaust groove is disposed on the abutting surface of the abutting part, and the exhaust groove extends from the edge of the abutting part toward the milk discharge channel.

[0023] According to one embodiment of the present invention, there is a gap between the speaker cover and the panel portion, and the speaker cover has a support ring facing the panel portion.

[0024] According to another aspect of the present invention, the present invention further provides a breast pump, which includes a main unit and a breast pumping device connected to the main unit. The breast pumping device includes an integral device body, a back cover, and a bottle. The breast pumping device has a negative pressure chamber. The device body has a spatially variable breast pumping chamber and a milk discharge channel selectively connected to the breast pumping chamber. The back cover has a gas channel and is installed at the rear of the device body. The negative pressure chamber is formed between the device body and the back cover. The gas channel of the back cover is connected to the negative pressure chamber. The pressure state of the breast pumping chamber and the connectivity state of the milk discharge channel change with the pressure state of the negative pressure chamber. The bottle is detachably installed on the back cover. When the bottle is installed on the back cover, the rim of the bottle abuts against the device body. The milk discharge channel connects the breast pumping chamber and the milk storage chamber of the bottle. The negative pressure state of the negative pressure chamber of the device body is controlled by the main unit.

[0025] According to another aspect of the present invention, the present invention further provides a breast pumping device, which includes:

[0026] A milk pumping unit, wherein the milk pumping unit has a milk pumping chamber, a milk discharge channel selectively connected to the milk pumping chamber, and a negative pressure chamber independent of the milk pumping chamber, the pressure state of the milk pumping chamber and the connectivity state of the milk discharge channel changing with the pressure state of the negative pressure chamber; and

[0027] A horn-shaped shield, wherein the horn-shaped shield has a shield space for accommodating the breast and an abutting protrusion, the horn-shaped shield is disposed on the breast pumping unit, the shield space of the horn-shaped shield is connected to the breast pumping chamber of the breast pumping unit, the abutting protrusion is located at the connection position between the shield space and the breast pumping chamber, and the surface of the horn-shaped shield for defining the shield space is a concave arc surface.

[0028] According to one embodiment of the present invention, the milk pumping unit includes a device body and a rear cover. The device body further includes a cylindrical body and a deformable portion. The deformable portion is integrally formed at the rear of the cylindrical body. The milk pumping chamber is formed between the cylindrical body and the deformable portion. The milk discharge channel is formed in the cylindrical body. The rear cover is installed on the cylindrical body. The negative pressure chamber is formed between the deformable portion and the rear cover. The horn cover is integrally formed at the front of the cylindrical body so that the horn cover is disposed on the milk pumping unit.

[0029] According to one embodiment of the present invention, the milk pumping unit includes a device body and a rear cover. The device body further includes a cylindrical body and a deformable portion. The deformable portion is integrally formed at the rear of the cylindrical body. The milk pumping chamber is formed between the cylindrical body and the deformable portion. The milk discharge channel is formed in the cylindrical body. The rear cover is installed on the cylindrical body. The negative pressure chamber is formed between the deformable portion and the rear cover. The horn cover is installed at the front of the cylindrical body so that the horn cover is disposed in the milk pumping unit.

[0030] According to one embodiment of the present invention, the main body of the device includes a stop portion integrally formed at the bottom of the cylinder, the milk discharge channel extends from the inner wall of the cylinder to the stop surface of the stop portion, wherein the milk suction unit further includes a bottle, the bottle is detachably mounted on the back cover, and the rim of the bottle abuts against the stop surface of the stop portion.

[0031] According to one embodiment of the present invention, the abutting portion has a vent hole that extends from the abutting surface to the side of the abutting portion opposite to the abutting surface.

[0032] According to one embodiment of the present invention, the abutting portion has an exhaust groove, which is provided on the side of the abutting portion opposite to the abutting surface, and the exhaust groove extends from the exhaust hole to the edge of the abutting portion.

[0033] According to one embodiment of the present invention, the rear cover has a vent groove, and the vent groove of the rear cover is connected to the vent hole of the abutment portion.

[0034] According to one embodiment of the present invention, the abutting part has an exhaust groove, the exhaust groove is disposed on the abutting surface of the abutting part, and the exhaust groove extends from the edge of the abutting part toward the milk discharge channel.

[0035] According to one embodiment of the present invention, the speaker cover is flexible.

[0036] According to another aspect of the present invention, the present invention further provides a breast pump, which includes a main unit and a breast pumping device connected to the main unit, wherein the breast pumping device includes:

[0037] A milk pumping unit, wherein the milk pumping unit has a milk pumping chamber, a milk discharge channel selectively connected to the milk pumping chamber, and a negative pressure chamber independent of the milk pumping chamber, the pressure state of the milk pumping chamber and the connectivity state of the milk discharge channel changing with the pressure state of the negative pressure chamber; and

[0038] A horn-shaped shield, wherein the horn-shaped shield has a shield space for accommodating the breast and an abutting protrusion, the horn-shaped shield is disposed on the breast pumping unit, the shield space of the horn-shaped shield is connected to the breast pumping chamber of the breast pumping unit, the abutting protrusion is located at the connection position between the shield space and the breast pumping chamber, and the surface of the horn-shaped shield for defining the shield space is a concave arc surface. Attached Figure Description

[0039] Figure 1 This is a perspective view of a breast pump according to a preferred embodiment of the present invention.

[0040] Figure 2 This is a perspective view of a breast pumping device of the breast pump according to the above-described preferred embodiment of the present invention.

[0041] Figure 3 This is a perspective view of the breast pumping device of the breast pump according to the above-described preferred embodiment of the present invention.

[0042] Figure 4 This is an exploded view of the breast pumping device of the breast pump according to the above-described preferred embodiment of the present invention.

[0043] Figure 5 This is an exploded view of the breast pumping device of the breast pump according to the above-described preferred embodiment of the present invention.

[0044] Figure 6 This is a perspective view of the main body of the breast pump device according to the above-described preferred embodiment of the present invention.

[0045] Figure 7 yes Figure 6 A magnified view of a local location.

[0046] Figure 8 This is a perspective view of the main body of the breast pump device according to the above-described preferred embodiment of the present invention.

[0047] Figure 9 yes Figure 8 A magnified view of a local location.

[0048] Figure 10 This is a cross-sectional schematic diagram of the breast pumping device according to the above-described preferred embodiment of the present invention.

[0049] Figure 11 yes Figure 10 A magnified view of a local location.

[0050] Figure 12This is a cross-sectional schematic diagram of a modified example of the breast pumping device of the breast pump according to the above-described preferred embodiment of the present invention.

[0051] Figure 13 This is an exploded view of another breast pumping device of the breast pump according to the above-described preferred embodiment of the present invention.

[0052] Figure 14 This is an exploded view of the breast pumping device of the breast pump according to the above-described preferred embodiment of the present invention.

[0053] Figure 15 This is a cross-sectional schematic diagram of the breast pumping device according to the above-described preferred embodiment of the present invention. Detailed Implementation

[0054] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0055] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0056] Refer to the accompanying drawings of the specification of this utility model. Figures 1 to 11A preferred embodiment of the present invention will be disclosed and described in the following description, wherein the breast pump includes a main unit 10 and at least one milk suction device 20 connected to the main unit 10, the milk suction device 20 being able to be fitted to the breast, and the milk suction device 20 being used to suck out and store milk when the main unit 10 is in operation.

[0057] Preferably, the breast pump further includes an air tube 30, one end of which is connected to the main unit 10 and the other end is connected to the breast pumping device 20, such that the breast pumping device 20 is connected to the main unit 10 through the air tube 30.

[0058] More preferably, see Appendix Figure 1 The breast pump has two pumping devices 20, and the air tube 30 is Y-shaped. The air tube 30 can connect both pumping devices 20 to the main unit 10 at the same time. In this way, the user can use the breast pump of this utility model to pump milk from both breasts at the same time.

[0059] It is worth mentioning that the specific way in which the breast pump 20 is fitted to the breast is not limited in the breast pump of this utility model. For example, in some embodiments of the breast pump of this utility model, the breast pump 20 can be self-adhesive to the breast, so that the breast pump 20 fits the breast; in other embodiments of the breast pump of this utility model, the breast pump 20 can be placed inside a bra, with the bra assisting the breast pump 20 in fitting to the breast.

[0060] Reference Appendix Figures 2 to 11 The breast pumping device 20 includes a device body 21, a back cover 22 and a baby bottle 23, and the breast pumping device 20 has a negative pressure chamber 24.

[0061] In the breast pump of this invention, the main body 21 is a single piece, integrally manufactured by injection molding. For example, silicone material can be used to form the main body 21 as a single piece through injection molding, or it can be formed by a secondary injection molding process. The main body 21 has a variable-spaced milk suction chamber 211 and a milk discharge channel 212 selectively connected to the milk suction chamber 211. The rear cover 22 has a gas channel 221 and is installed at the rear of the main body 21. The negative pressure chamber 24 of the breast pump 20 is formed between the main body 21 and the rear cover 22. The gas channel 221 of the rear cover 22 is connected to the negative pressure chamber 24 of the breast pump 20, and the pressure state of the milk suction chamber 211 and the communication state of the milk discharge channel 212 of the main body 21 change with the pressure state of the negative pressure chamber 24 of the breast pump 20. The bottle 23 is detachably mounted on the back cover 22. When the bottle 23 is mounted on the back cover 22, the rim of the bottle 23 abuts against the device body 21. The milk discharge channel 212 connects the milk suction chamber 211 and the milk storage chamber 231 of the bottle 23. In the breast pump of this invention, the device body 21 of the breast pump 20 is integral, which helps to reduce the production cost of the breast pump 20 and improve the production efficiency of the breast pump. Furthermore, since the rim of the bottle 23 abuts against the device body 21, on the one hand, the device body 21 can provide pre-pressure to the bottle 23 to prevent the bottle 23 from loosening; on the other hand, the device body 21 can prevent gaps from forming between the device body 21 and the rim of the bottle 23, thereby ensuring that milk is reliably stored in the milk storage chamber 231 of the bottle 23.

[0062] When a user uses the breast pump, the breast closes the opening of the suction chamber 211 of the main body 21 of the device, forming a closed space. When the main unit 10 is working, it can expel the air in the negative pressure chamber 24 of the breast pump 20 through the gas channel 221 of the rear cover 22, thereby increasing the negative pressure in the negative pressure chamber 24. At this time, the negative pressure in the suction chamber 211 of the main body 21 increases, and the milk discharge channel 212 prevents the suction chamber 211 of the main body 21 from communicating with the milk storage chamber 231 of the bottle 23, thus milk is sucked out. The milk is temporarily stored in the suction chamber 211 of the main body 21 of the device. When the main unit 10 allows air to enter the negative pressure chamber 24 of the breast pump 20 through the gas channel 221 of the rear cover 22, the negative pressure in the negative pressure chamber 24 of the breast pump 20 decreases. At this time, the negative pressure in the suction chamber 211 of the main body 21 decreases, and the milk discharge channel 212 allows the suction chamber 211 of the main body 21 and the milk storage chamber 231 of the bottle 23 to communicate. Therefore, milk is allowed to enter the milk storage chamber 231 of the bottle 23 through the milk discharge channel 212 of the main body 21. This process is repeated, and the breast pump can help the user express milk.

[0063] Furthermore, in the appendix Figures 1 to 11 In this specific example of the breast pump of the present invention, the main body 21 includes a cylindrical body 213, a deformable portion 214, a horn cover 215, and abutment portion 216. The deformable portion 214 is integrally formed at the rear of the cylindrical body 213, the horn cover 215 is integrally formed at the front of the cylindrical body 213, and the abutment portion 216 is integrally formed at the bottom of the cylindrical body 213. The milk suction chamber 211 of the main body 21 is formed between the cylindrical body 213 and the deformable portion 214, and the milk discharge channel 212 of the main body 21 extends from the inner wall of the cylindrical body 213 to the abutment surface 2161 of the abutment portion 216. That is, in the attached... Figures 1 to 11In this specific example of the breast pump shown, the cylindrical body 213, the deformable portion 214, the horn cover 215, and the abutment portion 216 of the main body 21 are a single unit and do not require assembly. For example, in some embodiments of the breast pump of this invention, the cylindrical body 213, the deformable portion 214, the horn cover 215, and the abutment portion 216 can be integrally injection molded from silicone material using a single injection molding process. In some other embodiments of the breast pump of this utility model, the cylindrical body 213 can be injection molded first, and then the deformable part 214, the horn cover 215 and the abutment part 216 can be injection molded. The deformable part 214 is integrally connected to the rear part of the cylindrical body 213, so that the deformable part 214 is integrally formed at the rear part of the cylindrical body 213. The horn cover 215 is integrally connected to the front part of the cylindrical body 213, so that the deformable part 214 is integrally formed at the front part of the cylindrical body 213. The abutment part 216 is integrally connected to the bottom of the cylindrical body 213, so that the deformable part 214 is integrally formed at the bottom of the cylindrical body 213.

[0064] Preferably, refer to the appendix Figure 10 The inner wall of the main body 21 of the device, which forms the milk suction chamber 211, extends obliquely from the connection position of the horn cover 215 and the cylindrical body 213 towards the deformed part 214. When the user covers the breast with the horn cover 215, the connection position of the horn cover 215 and the cylindrical body 213 abuts against the areola. Because the inner wall of the main body 21 of the device, which forms the milk suction chamber 211, is oblique, on the one hand, the inner wall of the main body 21 of the device, which forms the milk suction chamber 211, can guide the sucked milk to the milk discharge channel 212 of the main body 21 of the device, so that the milk can be discharged smoothly. On the other hand, the connection position of the horn cover 215 and the cylindrical body 213 can prevent the milk from flowing back, so that the user can use the milk suction device 20 of this utility model to suck.

[0065] The rear cover 22 is installed on the cylinder 213, and the negative pressure chamber 24 of the breast pump 20 is formed between the deformable part 214 and the rear cover 22. When the user uses the breast pump, the breast closes the opening of the breast pump chamber 211 of the device body 21, making the breast pump chamber 211 of the device body 21 a closed space. As the air in the negative pressure chamber 24 of the breast pump 20 is discharged through the gas channel 221 of the rear cover 22, the deformable part 214 deforms towards the rear cover 22, causing the space of the breast pump chamber 211 of the device body 21 to increase. Correspondingly, the negative pressure in the breast pump chamber 211 of the device body 21 increases, and the milk discharge channel 212 of the device body 21 prevents the breast pump chamber 211 of the device body 21 from communicating with the milk storage chamber 231 of the bottle 23, so that the milk can be sucked out and temporarily stored in the bottle. As external air enters the negative pressure chamber 24 of the milk suction device 20 through the gas channel 221 of the rear cover 22, the deformable part 214 deforms away from the rear cover 22, resulting in a reduction in the space of the milk suction chamber 211 of the device body 21. Correspondingly, the negative pressure in the milk suction chamber 211 of the device body 21 decreases, and the milk discharge channel 212 of the device body 21 allows the milk suction chamber 211 of the device body 21 and the milk storage chamber 231 of the bottle 23 to communicate. The milk temporarily stored in the milk suction chamber 211 of the device body 21 enters the milk storage chamber 231 of the bottle 23 through the milk discharge channel 212 of the device body 21.

[0066] When the bottle 23 is installed on the back cover 22, the rim of the bottle 23 applies pressure to the abutment 216 after it is in contact with the abutment surface 2161 of the abutment part 216, causing the abutment part 216 to deform slightly. In this way, on the one hand, the device body 21 can provide pre-pressure to the bottle 23 to prevent the bottle 23 from loosening, and on the other hand, the device body 21 can prevent gaps from forming between the abutment surface 2161 of the abutment part 216 and the rim of the bottle 23, so that the milk is reliably stored in the milk storage chamber 231 of the bottle 23.

[0067] Reference Appendix Figures 6 to 11The abutting portion 216 of the main body 21 of the device has an exhaust hole 2162. The exhaust hole 2162 extends from the abutting surface 2161 to the side of the abutting portion 216 opposite to the abutting surface 2161. That is, the exhaust hole 2162 of the abutting portion 216 penetrates the upper and lower sides of the abutting portion 216. After the bottle 23 is installed on the back cover 22 and the rim of the bottle 23 abuts against the abutting surface 2161 of the abutting part 216, the vent 2162 of the abutting part 216 is located inside the rim of the bottle 23. In this way, the vent 2162 of the abutting part 216 can connect the milk storage chamber 231 of the bottle 23 with the external environment. Thus, during the milk feeding process, the air in the milk storage chamber 231 of the bottle 23 can be discharged through the vent 2162 of the abutting part 216, so that the milk temporarily stored in the milk suction chamber 211 of the device body 21 can be smoothly discharged into the milk storage chamber 231 of the bottle 23 through the milk discharge channel 212 of the device body 21.

[0068] Preferably, the abutment portion 216 of the device body 21 has an exhaust groove 2163. The exhaust groove 2163 is provided on the side of the abutment portion 216 away from the abutment surface 2161, and the exhaust groove 2163 extends from the exhaust hole 2162 to the edge of the abutment portion 216. In this way, after the rear cover 22 is installed on the device body 21, the exhaust groove 2163 of the abutment portion 216 allows an exhaust channel to be formed between the device body 21 and the rear cover 22. The exhaust channel connects the exhaust hole 2162 of the abutment portion 216 and the external environment, so that during the milk feeding process, the air in the milk storage chamber 231 of the bottle 23 can be discharged through the exhaust hole 2162 of the abutment portion 216 and the exhaust channel.

[0069] Optionally, in other examples of the breast pump of this utility model, the venting groove 2163 may also be provided on the rear cover 22. After the rear cover 22 is installed on the device body 21, the venting hole 2162 of the abutment part 216 and the venting groove 2163 of the rear cover 22 are connected. In this way, the venting groove 2163 of the rear cover 22 allows the venting channel to be formed between the device body 21 and the rear cover 22, and the venting channel connects the venting hole 2162 of the abutment part 216 and the external environment. Thus, during the milk pumping process, the air in the milk storage chamber 231 of the bottle 23 can be discharged through the venting hole 2162 of the abutment part 216 and the venting channel.

[0070] Optionally, in other examples of the breast pump of this utility model, the abutment portion 216 of the device body 21 may also lack the vent 2162. The vent groove 2163 of the abutment portion 216 is provided on the abutment surface 2161 of the abutment portion 216, and the vent groove 2163 extends from the edge of the abutment portion 216 towards the milk discharge channel 212. Thus, when the bottle 23 is mounted on the back cover 22 and the rim of the bottle 23 abuts against the abutment portion 216, the vent groove 2163 extends from the edge of the abutment portion 216 towards the milk discharge channel 212. After the contact surface 2161 is reached, the venting groove 2163 of the contact part 216 allows the milk storage chamber 231 of the bottle 23 to communicate with the external environment. Thus, during the milk feeding process, the air in the milk storage chamber 231 of the bottle 23 can be discharged through the venting groove 2163 of the contact part 216, so that the milk temporarily stored in the milk suction chamber 211 of the device body 21 can be smoothly discharged into the milk storage chamber 231 of the bottle 23 through the milk discharge channel 212 of the device body 21.

[0071] Reference Appendix Figures 2 to 6 , Figure 8 and Figure 10 The main body 21 of the device includes a panel portion 217, which is integrally formed on the cylindrical body 213 and surrounds the middle of the cylindrical body 213. It is understood that in some embodiments of the breast pump of this invention, the panel portion 217 can be integrally formed with the cylindrical body 213, the deformable portion 214, the horn cover 215, and the abutment portion 216 through an integral injection molding process. The edge of the back cover 22 is mounted to the edge of the panel portion 217, thereby ensuring a reliable connection between the back cover 22 and the main body 21 of the device.

[0072] Reference Appendix Figure 4 , Figure 5 and Figure 10 The rear cover 22 includes a cover shell 222, an inner abutment ring arm 223, and an assembly ring 224. The inner abutment ring arm 223 extends integrally into the middle of the cover shell 222, and the assembly ring 224 is integrally formed at the bottom of the cover shell 222. When the rear cover 22 is installed on the device body 21, the edge of the cover shell 222 is installed on the edge of the panel portion 217. The inner abutment ring arm 223 abuts against the rear portion of the cylinder 213 in a sealing manner to form the negative pressure chamber 24 of the milk pumping device 20 between the rear cover 22 and the deformable portion 214. The assembly ring 224 is located below the abutment portion 216, and the milk discharge channel 212 of the device body 21 corresponds to the ring channel 2241 of the assembly ring 224.

[0073] Reference Appendix Figure 10 The panel portion 217 has an outer panel insertion groove 2171, and the tail end of the cylindrical body 213 has a cylindrical body insertion groove 2131. When the rear cover 22 is installed on the device body 21, the edge of the cover shell 222 is inserted into the outer panel insertion groove 2171 of the panel portion 217, and the inner side abutting the ring arm 223 is inserted into the cylindrical body insertion groove 2131 of the cylindrical body 213. In this way, not only can the rear cover 22 be reliably installed on the device body 21, but the sealing of the negative pressure cavity 24 formed between the rear cover 22 and the deformable part 214 can also be guaranteed.

[0074] The mouth 232 of the bottle 23 passes through the annular channel 2241 of the assembly ring 224 and is mounted on the assembly ring 224. The rim of the bottle 23 abuts against the abutting surface 2161 of the abutting part 216. (See attached...) Figures 1 to 11 In this specific example of the breast pump of the present invention, the mouth 232 of the bottle 23 is screwed onto the assembly ring 224. When the mouth 232 of the bottle 23 is screwed onto the assembly ring 224, pressure can be applied to the abutment surface 2161 of the abutment part 216, causing slight deformation of the abutment surface 2161. Thus, the device body 21 can provide pre-pressure to the bottle 23 to prevent the bottle 23 from loosening. At the same time, the device body 21 can prevent gaps from forming between the abutment surface 2161 of the abutment part 216 and the mouth rim of the bottle 23, so that milk is reliably stored in the milk storage chamber 231 of the bottle 23.

[0075] Furthermore, the rear cover 22 includes an outer abutment ring arm 225, which integrally extends from the middle of the cover shell 222 and is located outside the inner abutment ring arm 223. The outer abutment ring arm 225 is mounted on the inner side of the panel portion 217, thus allowing the rear cover 22 to be reliably mounted to the device body 21. Preferably, the panel portion 217 has an inner panel insertion slot 2172, and when the rear cover 22 is mounted to the device body 21, the outer abutment ring arm 225 is inserted into the inner panel insertion slot 2172 of the panel portion 217.

[0076] Reference Appendix Figure 4 , Figure 5 and Figure 10The breast pump device 20 includes a duckbill valve 25, which is installed on the abutment portion 216 of the device body 21. The duckbill valve 25 controls the connection state of the milk discharge channel 212 of the device body 21. Specifically, when the user uses the breast pump, when the negative pressure in the milk suction chamber 211 of the device body 21 increases as the negative pressure in the negative pressure chamber 24 of the breast pump device 20 increases, the duckbill valve 25 prevents the milk suction chamber 211 of the device body 21 from connecting with the milk storage chamber 231 of the bottle 23. When the negative pressure in the milk suction chamber 211 of the device body 21 decreases as the negative pressure in the negative pressure chamber 24 of the breast pump device 20 decreases, the duckbill valve 25 allows the milk suction chamber 211 of the device body 21 to connect with the milk storage chamber 231 of the bottle 23.

[0077] Continue to refer to the appendix Figure 10 The device body 21 has a gap 218 between the horn cover 215 and the panel portion 217, allowing the deformed horn cover 215 to flip towards the panel portion 217. The horn cover 215 has a support ring 2151 facing the panel portion 217, allowing the support ring 2151 to abut against the panel portion 217. In this way, during milk expression, the support ring 2151 supports the lower side of the horn cover 215 and the panel portion 217, preventing the horn cover 215 from sagging and causing the nipple to lose balance within the milk expression chamber 211 of the device body 21, thus preventing milk leakage. Simultaneously, because the support ring 2151 is annular, it itself maintains the shape of the horn cover 215, reducing the amplitude of the horn cover 215 and ensuring no gaps form between the breast and the horn cover 215 when the user uses the breast pump.

[0078] Continue to refer to the appendix Figures 1 to 11 According to another aspect of the present invention, the milk suction device 20 of the present invention includes a milk suction unit 100 and a horn cover 215 disposed on the milk suction unit 100.

[0079] The milk suction unit 100 has a milk suction chamber 211, a milk discharge channel 212 selectively connected to the milk suction chamber 211, and a negative pressure chamber 24 independent of the milk suction chamber 211. The pressure state of the milk suction chamber 211 and the connection state of the milk discharge channel 212 change with the pressure state of the negative pressure chamber 24. When the negative pressure in the negative pressure chamber 24 increases, the negative pressure in the milk suction chamber 211 increases, and the milk discharge channel 212 closes. When the negative pressure in the negative pressure chamber 24 decreases, the negative pressure in the milk suction chamber 211 decreases, and the milk discharge channel 212 opens.

[0080] The horn cover 215 has a cover space 2154 and an abutting protrusion 2155. The cover space 2154 of the horn cover 215 is connected to the milk suction chamber 211 of the milk suction unit 100. The abutting protrusion 2155 is located at the connection position between the cover space 2154 and the milk suction chamber 211. The surface of the horn cover 215 that defines the cover space 2154 is a concave arc surface. In this way, on the one hand, the shape of the surface of the horn cover 215 that defines the cover space 2154 matches the shape of the breast. On the other hand, the opening size of the cover space 2154 of the horn cover 215 can be controlled to a reasonable size. When the breast is contained within the cover space 2154 of the flared cover 215, the areola abuts against the abutting protrusion 2155 of the flared cover 215. The surface of the flared cover 215 defining the cover space 2154 fits tightly against the breast, and the opening edge of the flared cover 215 fastens to the base of the breast, allowing the flared cover 215 to self-adhere to the breast, achieving "naked pumping." In other words, during breast pumping, the user does not need to hold the breast pump 20 by hand or wear a bra for support, thus improving the convenience and comfort of using the breast pump. Preferably, the flared cover 215 is flexible. For example, the flared cover 215 can be made of silicone material to make it flexible.

[0081] Specifically, the milk pumping unit 100 includes the device body 21 and the rear cover 22. The device body 21 further includes the cylindrical body 213 and the deformable portion 214. The deformable portion 214 is integrally formed at the rear of the cylindrical body 213. The milk pumping chamber 211 is formed between the cylindrical body 213 and the deformable portion 214. The milk discharge channel 212 is formed in the cylindrical body 213. The rear cover 22 is installed in the cylindrical body 213. The negative pressure chamber 24 is formed between the deformable portion 214 and the rear cover 22. When the negative pressure in the negative pressure chamber 24 increases, the deformable portion 214 deforms towards the rear cover 22. At this time, the space in the milk pumping chamber 211 increases and the negative pressure increases. Correspondingly, when the negative pressure in the negative pressure chamber 24 decreases, the deformable portion 214 deforms away from the rear cover 22. At this time, the space in the milk pumping chamber 211 decreases and the negative pressure decreases.

[0082] In one specific example of the breast pump of this utility model, the horn cover 215 may be integrally formed on the front part of the cylindrical body 213 to be disposed on the breast pumping unit 100. Optionally, in other specific examples of the breast pump of this utility model, the horn cover 215 may be installed on the front part of the cylindrical body 213 to be disposed on the breast pumping unit 100.

[0083] In addition, the main body 21 of the device may also include the abutting part 216, which is integrally formed at the bottom of the cylinder 213, and the milk discharge channel 212 extends from the inner wall of the cylinder 213 to the abutting surface 2161 of the abutting part 216. The milk pumping unit 100 includes the bottle 23, which is detachably mounted on the back cover 22. After the bottle 23 is mounted on the back cover 22, the rim of the bottle 23 abuts against the abutting surface 2161 of the abutting part 216, causing the abutting part 216 to deform slightly. In this way, on the one hand, the device body 21 can provide pre-pressure to the bottle 23 to prevent the bottle 23 from loosening; on the other hand, the device body 21 can prevent gaps from forming between the abutting surface 2161 of the abutting part 216 and the rim of the bottle 23, thereby ensuring that milk is reliably stored in the milk storage chamber 231 of the bottle 23.

[0084] In addition, the milk suction unit 100 also includes the duckbill valve 25, which is disposed on the abutment portion 216 of the device body 21, and controls the connection state of the milk discharge channel 212 of the milk suction unit 100.

[0085] Appendix Figure 12This is a variation of the breast pumping device 20 of the breast pump according to the above-described preferred embodiment of the present invention, and is consistent with the attached... Figures 1 to 11 The breast pump shown differs from the breast pump device 20 in that it has an attached... Figure 12 In this specific example of the breast pump device 20 shown, the duckbill valve 25 and the device body 21 are integrally formed. The silicone material can be injection molded into an integral cylindrical body 213, the deformable part 214, the horn cover 215, the abutment part 216, and the duckbill valve 25 through a single injection molding process.

[0086] Appendix Figures 13 to 15 Another variation of the breast pumping device 20 of the breast pump of the above-described preferred embodiment of the present invention is shown, along with the attached... Figures 1 to 11 The breast pump shown differs from the breast pump device 20 in that it has an attached... Figures 13 to 15 In this specific example of the breast pump's pumping device 20 shown, the cylindrical body 213, the deformable portion 214, and the abutment portion 216 of the device body 21 are integrally formed. The deformable portion 214 is integrally formed at the rear of the cylindrical body 213, and the abutment portion 216 is integrally formed at the bottom of the cylindrical body 21. The pumping chamber 211 is formed between the cylindrical body 213 and the deformable portion 214. The milk discharge channel 212 extends from the inner wall of the cylindrical body 213 to the abutment surface 2161 of the abutment portion 216. The horn cover 215 is mounted on the front of the cylindrical body 213. That is, in the attached... Figures 13 to 15 In this specific example of the breast pumping device 20 of the present invention shown, the horn cover 215 can be removed from the front of the cylinder 213, so that, on the one hand, the horn cover 215 can be washed separately, and on the other hand, the horn cover 215 can be replaced.

[0087] Specifically, the horn cover 215 includes a horn portion 2152 and an assembly portion 2153 extending rearward and outward from the rear of the horn portion 2152. The assembly portion 2153 is mounted on the front of the cylindrical body 213, and the horn portion 2152 can cover the user's breast. It is understood that because the assembly portion 2153 of the horn cover 215 extends rearward and outward from the rear of the horn portion 2152, the inner wall of the assembly portion 2153 is inclined, extending obliquely from the connection point between the horn portion 2152 and the assembly portion 2153 towards the milk suction chamber 211 of the device body 21. When the user covers the breast with the horn portion 2152 of the horn cover 215, the connection point between the horn portion 2152 and the assembly portion 2153 of the horn cover 215 abuts against the areola. Since the inner wall of the mounting portion 2153 of the horn cover 215 is inclined, on the one hand, the mounting portion 2153 of the horn cover 215 can guide the sucked milk to the milk discharge channel 212 of the device body 21, so that the milk can be discharged smoothly. On the other hand, the connection position between the horn portion 2152 and the mounting portion 2153 of the horn cover 215 can prevent the milk from flowing back, so that the user can use the milk suction device 20 of this utility model to suck.

[0088] More specifically, the cylindrical body 213 has a cylindrical body hook 2132, and the mounting portion 2153 of the horn cover 215 has a mounting hook 21531, the mounting hook 21531 protruding circumferentially towards the mounting portion 2153, wherein the mounting hook 21531 of the mounting portion 2153 hooks the cylindrical body hook 2132 of the cylindrical body 213 to reliably install the mounting portion 2153 at the front of the cylindrical body 213, thereby reliably installing the horn cover 215 onto the cylindrical body 213.

[0089] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A breast pumping device, characterized in that, The device includes an integrated main body, a back cover, and a baby bottle. The milk-suction device has a negative pressure chamber. The main body has a space-variable milk-suction chamber and a milk-discharging channel selectively connected to the milk-suction chamber. The back cover has a gas channel and is installed at the rear of the main body. The negative pressure chamber is formed between the main body and the back cover. The gas channel of the back cover is connected to the negative pressure chamber. The pressure state of the milk-suction chamber and the connectivity state of the milk-discharging channel change with the pressure state of the negative pressure chamber. The baby bottle is detachably installed on the back cover. When the baby bottle is installed on the back cover, the rim of the baby bottle abuts against the main body. The milk-discharging channel connects the milk-suction chamber and the milk storage chamber of the baby bottle.

2. The breast pumping device according to claim 1, wherein the main body of the device includes a cylindrical body, a deformable portion, a horn cover, and a stop portion, wherein the deformable portion is integrally formed at the rear of the cylindrical body, the horn cover is integrally formed at the front of the cylindrical body, the stop portion is integrally formed at the bottom of the cylindrical body, the breast pumping chamber is formed between the cylindrical body and the deformable portion, the breast discharge channel extends from the inner wall of the cylindrical body to the abutting surface of the stop portion, wherein the rear cover is installed on the cylindrical body, and the negative pressure chamber is formed between the deformable portion and the rear cover.

3. The breast pumping device according to claim 2, wherein the inner wall of the main body of the device for forming the breast pumping chamber extends obliquely from the connection position of the horn cover and the cylinder towards the direction of the deformed portion.

4. The breast pumping device according to claim 1, wherein the main body of the device includes a cylindrical body, a deformable portion and abutting portion, the deformable portion is integrally formed at the rear of the cylindrical body, the abutting portion is integrally formed at the bottom of the cylindrical body, the breast pumping chamber is formed between the cylindrical body and the deformable portion, the breast discharge channel extends from the inner wall of the cylindrical body to the abutting surface of the abutting portion, wherein the rear cover is installed in the cylindrical body, the negative pressure chamber is formed between the deformable portion and the rear cover, and wherein the breast pumping device further includes a horn cover, the horn cover being installed at the front of the cylindrical body.

5. The breast pumping device according to claim 4, wherein the horn cover includes a horn portion and an assembly portion extending rearward and outward from the rear portion of the horn portion, the assembly portion being mounted on the front portion of the cylinder.

6. The breast pumping device according to claim 5, wherein the cylinder has a cylinder hook, the mounting portion of the horn cover has a mounting hook, the mounting hook protruding circumferentially from the mounting portion, wherein the mounting hook of the mounting portion hooks the cylinder hook of the cylinder to install the mounting portion at the front of the cylinder.

7. The breast pumping device according to claim 2, wherein the device body includes a panel portion integrally formed on the cylinder and surrounding the middle portion of the cylinder, wherein the edge of the back cover is mounted on the edge of the panel portion.

8. The breast pumping device according to claim 7, wherein the rear cover includes a cover shell, an inner abutment ring arm, and an assembly ring body, the inner abutment ring arm integrally extending to the middle of the cover shell, the assembly ring body integrally formed at the bottom of the cover shell, wherein the inner abutment ring arm sealably abuts against the cylindrical body to form the negative pressure chamber between the rear cover and the deformed portion, the assembly ring body is located below the abutment portion, and the milk discharge channel corresponds to the annular channel of the assembly ring body, the edge of the cover shell is mounted to the edge of the panel portion, wherein the mouth of the bottle passes through the annular channel of the assembly ring body and is mounted on the assembly ring body, and the mouth of the bottle abuts against the abutment surface of the abutment portion.

9. The breast pumping device according to claim 8, wherein the rear cover includes an outer abutment arm that integrally extends from the middle of the cover and is located outside the inner abutment arm, wherein the outer abutment arm is mounted on the inner side of the panel portion.

10. The milk pumping device according to any one of claims 2 to 9, wherein the milk pumping device includes a duckbill valve, the duckbill valve being disposed on the main body of the device for controlling the connectivity of the milk discharge channel.

11. The breast pumping device according to claim 10, wherein the duckbill valve is installed on the abutment portion of the device body.

12. The breast pumping device according to claim 10, wherein the duckbill valve and the device body are integrally formed.

13. The breast pumping device according to claim 12, wherein the device body and the duckbill valve are integrally made of silicone material.

14. The breast pumping device according to any one of claims 2 to 9, wherein the abutting portion has a vent hole extending from the abutting surface to a side of the abutting portion opposite to the abutting surface.

15. The breast pumping device according to claim 14, wherein the abutment portion has an exhaust groove, the exhaust groove being disposed on the side of the abutment portion opposite to the abutment surface, and the exhaust groove extending from the exhaust hole to the edge of the abutment portion.

16. The breast pumping device according to claim 14, wherein the rear cover has a vent groove, the vent groove of the rear cover communicating with the vent hole of the abutment portion.

17. The milk pumping device according to any one of claims 2 to 9, wherein the abutting part has an exhaust groove, the exhaust groove is disposed on the abutting surface of the abutting part, and the exhaust groove extends from the edge of the abutting part toward the milk discharge channel.

18. The breast pumping device according to any one of claims 7 to 9, wherein there is a gap between the horn cover and the panel portion, wherein the horn cover has a support ring facing the panel portion.

19. A breast pump, characterized in that, include: Host; and The breast pumping device according to any one of claims 1 to 18, wherein the device body is connected to the host, and the host controls the negative pressure state of the negative pressure chamber of the device body.

20. A breast pumping device, characterized in that, include: A milk pumping unit, wherein the milk pumping unit has a milk pumping chamber, a milk discharge channel selectively connected to the milk pumping chamber, and a negative pressure chamber independent of the milk pumping chamber, and the pressure state of the milk pumping chamber and the communication state of the milk discharge channel change with the pressure state of the negative pressure chamber; and A horn-shaped shield, wherein the horn-shaped shield has a shield space for accommodating the breast and an abutting protrusion, the horn-shaped shield is disposed on the breast pumping unit, the shield space of the horn-shaped shield is connected to the breast pumping chamber of the breast pumping unit, the abutting protrusion is located at the connection position between the shield space and the breast pumping chamber, and the surface of the horn-shaped shield for defining the shield space is a concave arc surface.

21. The breast pumping device according to claim 20, wherein the breast pumping unit includes a device body and a rear cover, the device body further includes a cylindrical body and a deformable portion, the deformable portion is integrally formed at the rear of the cylindrical body, the breast pumping chamber is formed between the cylindrical body and the deformable portion, the breast discharge channel is formed in the cylindrical body, the rear cover is installed in the cylindrical body, the negative pressure chamber is formed between the deformable portion and the rear cover, wherein the horn cover is integrally formed at the front of the cylindrical body so that the horn cover is disposed in the breast pumping unit.

22. The breast pumping device according to claim 20, wherein the breast pumping unit comprises a device body and a rear cover, the device body further comprising a cylindrical body and a deformable portion, the deformable portion being integrally formed at the rear of the cylindrical body, the breast pumping chamber being formed between the cylindrical body and the deformable portion, the breast discharge channel being formed in the cylindrical body, the rear cover being installed in the cylindrical body, the negative pressure chamber being formed between the deformable portion and the rear cover, wherein the horn cover is installed at the front of the cylindrical body so that the horn cover is disposed in the breast pumping unit.

23. The breast pumping device according to claim 21 or 22, wherein the device body includes a stop portion integrally formed at the bottom of the cylinder, the milk discharge channel extends from the inner wall of the cylinder to the stop surface of the stop portion, wherein the breast pumping unit further includes a bottle, the bottle being detachably mounted to the back cover, and the rim of the bottle abutting against the stop surface of the stop portion.

24. The breast pumping device according to claim 23, wherein the abutting portion has a vent hole extending from the abutting surface to a side of the abutting portion opposite to the abutting surface.

25. The breast pumping device according to claim 24, wherein the abutment portion has an exhaust groove, the exhaust groove being disposed on the side of the abutment portion opposite to the abutment surface, and the exhaust groove extending from the exhaust hole to the edge of the abutment portion.

26. The breast pumping device according to claim 24, wherein the rear cover has a venting groove, the venting groove of the rear cover communicating with the venting hole of the abutment portion.

27. The milk pumping device according to claim 23, wherein the abutting portion has an exhaust groove, the exhaust groove is disposed on the abutting surface of the abutting portion, and the exhaust groove extends from the edge of the abutting portion toward the milk discharge channel.

28. The breast pumping device according to claim 20, wherein the horn cover is flexible.

29. A breast pump, characterized in that, include: Host; and The breast pumping device according to any one of claims 20 to 28, wherein the device body is connected to the host, and the host controls the negative pressure state of the negative pressure chamber of the device body.

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