Breast pump and breast pumping device thereof, breast shield, and control method for breast pumping device

Abstract

Disclosed are a breast pump and a breast pumping device thereof, a breast shield, and a control method for the breast pumping device, wherein the breast pump comprises a flexible diaphragm, a milk discharge one-way valve, a breast shield, and an assembly member. The breast shield is provided with a front opening, a rear opening, and a side aperture for exhausting air. The assembly member is provided with a breast pumping chamber as well as a first air channel, a second air channel, an assembly opening, and a milk discharge channel, respectively, in communication with the breast pumping chamber. The flexible diaphragm is arranged on the assembly member to allow air in the breast pumping chamber of the assembly member to be discharged through the first air channel. The rear portion of the breast shield is mounted on the assembly member through the assembly opening, and the side aperture of the breast shield is in communication with the second air channel of the assembly member. The milk discharge one-way valve is arranged on the assembly member for selectively opening and closing the milk discharge channel.

Description

Breast pump and its breast pumping device, horn cover and control method of breast pumping device TECHNICAL FIELD

[0001] The present application relates to a breast pump, in particular to a breast pump and its breast pumping device, horn cover and control method of breast pumping device. BACKGROUND

[0002] In recent years, wearable breast pumps have become popular, which allow users to be placed in underwear, realizing hands-free. For example, in the Chinese utility model patent with the publication number CN216571014U, the inventor discloses a wearable breast pump, which comprises a breast pump host, a breast pump cylinder, a milk storage cup, a horn cover and a duckbill valve. The breast pump host is connected with the breast pump cylinder, the breast pump cylinder is connected with the milk storage cup, the milk storage cup is connected with the horn cover, and the duckbill valve is connected with the horn cover. The breast pump host is used to contract the breast pump cylinder to generate negative pressure at the horn cover, so as to suck milk in the horn cover. The duckbill valve is a one-way valve, which is used to close when the breast pump cylinder contracts, and is used to open and connect the horn cover and the milk storage cup when the breast pump cylinder restores to shape, so as to drain milk into the milk storage cup. The horn cover comprises a horn-shaped cover body and an assembly part connected with each other, and a assembly through hole for mounting the duckbill valve is formed below the assembly part. The assembly part is connected with the breast pump channel. The wearable breast pump only relies on the underwear to tightly attach the horn cover to the breast, which causes the problem that the wearable breast pump is prone to dislocation between the horn cover and the breast due to gravity, and once the horn cover is dislocated from the breast, it will further cause the breast pump to fail to normally suck milk. SUMMARY

[0003] One object of the present application is to provide a breast pump and its breast pumping device, horn cover and control method of breast pumping device, wherein a sealed cavity is formed between the horn cover and the breast during the breast pumping process, and the sealed cavity is a negative pressure environment, so that the horn cover can be adsorbed to the breast, avoiding the situation that the breast pumping device slides downward relative to the breast.

[0004] One object of the present application is to provide a breast pump and its breast pumping device, horn cover and control method of breast pumping device, wherein the pressure of the sealed cavity formed between the horn cover and the breast can be selected to meet the use requirements of different users.

[0005] One object of the present application is to provide a breast pump and its breast pumping device, horn cover and control method of breast pumping device, wherein the pressure of the sealed cavity formed between the horn cover and the breast is maintained stable, so as to improve the comfort of users when using the breast pump.

[0006] One object of the present application is to provide a breast pump and a breast pumping device, a horn cover and a control method of the breast pumping device, wherein side perforations of the horn cover can be used for exhaust, so that the breast pumping device can form the sealed cavity between the horn cover and the breast to form a negative pressure environment.

[0007] One object of the present application is to provide a breast pump and a breast pumping device, a horn cover and a control method of the breast pumping device, wherein during the breast pumping process, a massage cavity is formed between the main cover body, the small cover ring and the breast of the horn cover of the breast pumping device, and the massage cavity can alternately generate high and low pressure to drive the small cover ring to deform and massage the back of the areola, so as to not only improve the breast pumping efficiency, but also stimulate lactation and increase milk yield.

[0008] One object of the present application is to provide a breast pump and a breast pumping device, a horn cover and a control method of the breast pumping device, wherein the massage cavity can be a sealed environment, so that the horn cover can be self-adsorbed on the breast to avoid the breast pump from sliding downward relative to the breast.

[0009] One object of the present application is to provide a breast pump and a breast pumping device, a horn cover and a control method of the breast pumping device, wherein the pressure of the massage cavity formed between the main cover body, the small cover ring and the breast can be selected to meet the use requirements of different users.

[0010] One object of the present application is to provide a breast pump and a breast pumping device, a horn cover and a control method of the breast pumping device, wherein the pressure of the massage cavity formed between the main cover body, the small cover ring and the breast is maintained stable to improve the comfort of the user when using the breast pump.

[0011] One object of the present application is to provide a breast pump and a breast pumping device, a horn cover and a control method of the breast pumping device, wherein the air passage of the horn cover can be used for exhaust and blowing, so that the breast pump can form the massage cavity between the main cover body, the small cover ring and the breast.

[0012] According to one aspect of the present application, a breast pumping device is provided, which comprises:

[0013] An assembly, wherein the assembly has a breast pumping cavity and a first gas passage, a second gas passage, an assembly opening and a milk discharge passage which are respectively communicated with the breast pumping cavity;

[0014] An elastic diaphragm, wherein the elastic diaphragm is arranged on the assembly to allow the gas in the breast pumping cavity of the assembly to be discharged through the first gas passage;

[0015] A horn cover, wherein the horn cover has side perforations, a rear portion of the horn cover is mounted to the fitting via the fitting opening, and the side perforations of the horn cover are in communication with the second gas passage of the fitting.

[0016] A milk discharge one-way valve, wherein the milk discharge one-way valve is mounted to the fitting for opening and closing the milk discharge passage of the fitting.

[0017] According to an embodiment of the present application, the breast pumping device includes a housing mounted to the fitting, the breast pump forms a milk storage cavity between the fitting and the housing, and the milk discharge one-way valve is located in the milk storage cavity.

[0018] According to an embodiment of the present application, the breast pumping device includes a milk bottle mounted to the fitting, and the milk bottle covers the milk discharge one-way valve.

[0019] According to an embodiment of the present application, the horn cover includes a main cover body and a small cover ring extending inward and forward from an inner wall of the main cover body, and the side perforations of the horn cover are formed in the main cover body and located outside the small cover ring.

[0020] According to an embodiment of the present application, the horn cover includes a blocking ring extending inward and rearward from the inner wall of the main cover body.

[0021] According to an embodiment of the present application, a cover ring root of the small cover ring for connecting to the main cover body and a blocking ring root of the blocking ring for connecting to the main cover body are integrated.

[0022] According to an embodiment of the present application, the small cover ring is detachably mounted to the main cover body.

[0023] According to an embodiment of the present application, the housing has a first gas hole and a second gas hole, the elastic diaphragm is clamped between the fitting and the housing, the first gas hole of the housing is in communication with the concave cavity of the elastic diaphragm, and the second gas hole of the housing is in communication with the second gas passage of the fitting.

[0024] According to an embodiment of the present application, the elastic diaphragm has a diaphragm hole, and a column of the fitting for forming the second gas passage and a column of the housing for forming the second gas hole are respectively inserted into the diaphragm hole of the elastic diaphragm.

[0025] According to an embodiment of the present application, the breast pumping device includes an anti-sticking portion provided in at least one of the main cover body and the small cover ring for preventing the small cover ring from blocking the side perforations of the horn cover.

[0026] According to another aspect of the present application, the present application further provides a breast pump device, comprising:

[0027] a fitting member, wherein the fitting member has a breast pumping cavity and a first gas passage, a second gas passage, a fitting opening and a milk discharge passage respectively communicating with the breast pumping cavity;

[0028] a resilient diaphragm, wherein the resilient diaphragm is arranged on the fitting member for allowing gas in the breast pumping cavity of the fitting member to be discharged through the first gas passage;

[0029] a bell cover, wherein the bell cover comprises a fitting ring and a bell-shaped peristaltic ring, a middle portion of the peristaltic ring is arranged on a front portion of the fitting ring, a front portion of the peristaltic portion forms a small cover ring for abutting against a rear side of an areola portion, and an opening of the second gas passage of the fitting member is located outside the small cover ring; and

[0030] a milk discharge one-way valve, wherein the milk discharge one-way valve is mounted on the fitting member for opening and closing the milk discharge passage of the fitting member.

[0031] According to an embodiment of the present application, a rear portion of the peristaltic ring forms a blocking ring.

[0032] According to an embodiment of the present application, the breast pump device comprises a housing, the housing is mounted on the fitting member, the breast pump forms a milk storage cavity between the fitting member and the housing, and the milk discharge one-way valve is located in the milk storage cavity.

[0033] According to another aspect of the present application, the present application further provides a breast pump device, comprising:

[0034] a fitting member, wherein the fitting member comprises a barrel and a bell, the barrel has a barrel cavity and a first gas passage, a second gas passage and a barrel milk hole respectively communicating with the barrel cavity, and the bell extends outward from a front side of the barrel;

[0035] a milk discharge one-way valve, wherein the milk discharge one-way valve is mounted on the barrel for opening and closing the barrel milk hole of the barrel;

[0036] A horn cover, wherein the horn cover comprises a main cover body and a deformable portion, the deformable portion is arranged at a tail portion of the main cover body to form a milk suction cavity between the main cover body and the deformable portion, the main cover body has a cover milk hole and a lateral hole, the cover milk hole and the lateral hole are communicated with the milk suction cavity, wherein the tail portion of the main cover body is mounted in the barrel cavity of the barrel body, the cover milk hole of the main cover body and the barrel milk hole of the barrel body correspond and communicate, the breast pump forms a negative pressure cavity between the deformable portion and the barrel body, the first air passage of the barrel body is communicated with the negative pressure cavity, and the second air passage of the barrel body is communicated with the lateral hole of the main cover body.

[0037] According to an embodiment of the present application, the breast pump device comprises a housing, the housing has a first air hole and a second air hole, the periphery of the housing is sealingly mounted on the periphery of the horn body, the breast pump forms a milk storage cavity between the assembly and the housing, the milk discharge one-way valve is located in the milk storage cavity, the first air hole of the housing is communicated with the first air passage of the barrel body, and the second air hole of the housing is communicated with the second air passage of the barrel body.

[0038] According to an embodiment of the present application, the breast pump device comprises a milk bottle, the milk bottle is mounted on the assembly, and the milk bottle covers the milk discharge one-way valve.

[0039] According to an embodiment of the present application, the horn cover comprises a small cover ring, the small cover ring is arranged on the main cover body, and the small cover ring extends towards the main cover body.

[0040] According to another aspect of the present application, the present application further provides a breast pump, comprising a main machine and a breast pump device, wherein the breast pump device comprises:

[0041] An assembly, wherein the assembly has a milk suction cavity and a first gas passage, a second gas passage, an assembly opening and a milk discharge passage communicated with the milk suction cavity, respectively;

[0042] An elastic diaphragm, wherein the elastic diaphragm is arranged on the assembly to allow gas in the milk suction cavity of the assembly to be discharged through the first gas passage;

[0043] A horn cover, wherein the horn cover has a lateral hole, the rear portion of the horn cover is mounted on the assembly through the assembly opening, and the lateral hole of the horn cover and the second gas passage of the assembly are communicated; and

[0044] A milk expression one-way valve, wherein the milk expression one-way valve is installed to the fitting for opening and closing the milk expression passage of the fitting, wherein the first gas passage and the second gas passage of the fitting are respectively communicated to the host.

[0045] According to another aspect of the present invention, the present invention further provides a horn cover for a breast pump, wherein the horn cover comprises a main cover body and a side perforation extending through opposite sides of the main cover body.

[0046] According to one embodiment of the present invention, the horn cover comprises a deformable portion disposed at a tail end of the main cover body to form a breast pumping cavity between the main cover body and the deformable portion, and a cover milk water hole communicated to the breast pumping cavity.

[0047] According to one embodiment of the present invention, the horn cover comprises a small cover ring extending inwardly and forwardly from an inner wall of the main cover body, and the side perforation of the horn cover is formed in the main cover body and located outside the small cover ring.

[0048] According to one embodiment of the present invention, the horn cover comprises a blocking ring extending inwardly and backwardly from an inner wall of the main cover body.

[0049] According to one aspect of the present invention, the present invention provides a control method of a breast pumping device, wherein the control method comprises the following steps:

[0050] (a) forming a massage cavity between a main cover body of a horn cover of the breast pumping device, a small cover ring installed to the main cover body, and a breast when a user wears the breast pumping device;

[0051] (b) alternately generating high and low negative pressures in a breast pumping cavity of the breast pumping device to pump out milk water; and

[0052] (c) alternately generating high and low pressures in the massage cavity to deform the small cover ring to massage a rear part of an areola by the small cover ring.

[0053] According to one embodiment of the present invention, in the step (c), alternately generating high and low negative pressures in the massage cavity to deform the small cover ring to massage a rear part of an areola by the small cover ring.

[0054] According to one embodiment of the present invention, in the step (c), alternately generating positive and negative pressures in the massage cavity to deform the small cover ring to massage a rear part of an areola by the small cover ring.

[0055] According to one embodiment of the present application, in the step (a), the horn cover is self-sucked to the breast, in the step (c), the pressure of the massage cavity is detected in real time, and the minimum negative pressure value of the massage cavity is adjusted according to the pressure state of the massage cavity.

[0056] According to one embodiment of the present application, in the above method, air is alternately blown into the massage cavity and extracted from the massage cavity through the air passage of the main cover body, so that the massage cavity alternately generates positive pressure and negative pressure.

[0057] According to another aspect of the present application, the present application further provides a breast pumping device, which comprises:

[0058] a flexible diaphragm;

[0059] a milk discharge one-way valve;

[0060] a horn cover, wherein the horn cover comprises a main cover body and a deformable small cover ring, the main cover body has a cover cavity and a front opening, a rear opening and an air passage which are respectively communicated with the cover cavity, and the small cover ring is arranged in the main cover body and located in the cover cavity; and

[0061] an assembly, wherein the assembly has a breast pumping cavity and a first gas passage, a second gas passage, an assembly opening and a milk discharge passage which are respectively communicated with the breast pumping cavity, the flexible diaphragm is arranged in the assembly to allow gas in the breast pumping cavity of the assembly to be discharged through the first gas passage, so that the breast pumping cavity can alternately generate high and low negative pressure, the milk discharge one-way valve is arranged in the assembly to selectively open and close the milk discharge passage of the assembly, the tail of the main cover body is mounted in the assembly through the assembly opening of the assembly, and the air passage of the main cover body is communicated with the second gas passage of the assembly.

[0062] According to one embodiment of the present application, the main cover body is deformable, so that the main cover body can be self-sucked to the breast.

[0063] According to one embodiment of the present application, the inner side opening of the air passage of the main cover body is directly opposite to the outer wall of the small cover ring.

[0064] According to one embodiment of the present application, the horn cover comprises an anti-sticking part, the anti-sticking part is arranged on the inner wall of the main cover body, and the anti-sticking part extends from the inner side opening of the air passage to the edge of the main cover body.

[0065] According to one embodiment of the present application, the horn cover comprises an anti-sticking portion, the anti-sticking portion is arranged on the outer wall of the small cover ring, and the anti-sticking portion extends from the front edge of the small cover ring to the tail portion direction, the position of the inside opening of the air passage of the main cover body corresponds to the position of the anti-sticking portion.

[0066] According to one embodiment of the present application, the breast pumping device comprises a shell, the shell is mounted on the assembly, the breast pumping device forms a milk storage cavity between the shell and the assembly, and the milk discharge one-way valve is located in the milk storage cavity.

[0067] According to another aspect of the present application, the present application further provides a breast pumping device, which comprises:

[0068] a flexible diaphragm;

[0069] a milk discharge one-way valve;

[0070] a horn cover, wherein the horn cover comprises a main cover body and a deformable small cover ring, the main cover body has a cover cavity and a front opening, a rear opening, an air passage and a milk passage which are respectively communicated with the cover cavity, the small cover ring is arranged on the main cover body and located in the cover cavity, wherein the flexible diaphragm is arranged on the tail portion of the main cover body for closing the rear opening of the main cover body, and the breast pumping device forms a breast pumping cavity between the main cover body and the flexible diaphragm; and

[0071] an assembly, wherein the assembly has an assembly cavity and a first gas passage, a second gas passage, an assembly opening and a milk discharge passage which are respectively communicated with the assembly cavity, the tail portion of the main cover body is mounted on the assembly cavity through the assembly opening of the assembly, the breast pumping device forms a negative pressure cavity between the flexible diaphragm and the assembly, the first gas passage is communicated with the negative pressure cavity, the air passage and the milk passage of the main cover body are respectively communicated with the second gas passage and the milk discharge passage of the assembly, and the milk discharge one-way valve is arranged on the assembly for selectively opening and closing the milk discharge passage of the assembly.

[0072] According to one embodiment of the present application, the inside opening of the air passage of the main cover body is directly opposite to the outer wall of the small cover ring.

[0073] According to one embodiment of the present application, the horn cover comprises an anti-sticking portion, the anti-sticking portion is arranged on the outer wall of the small cover ring, and the anti-sticking portion extends from the front edge of the small cover ring to the tail portion direction, the position of the inside opening of the air passage of the main cover body corresponds to the position of the anti-sticking portion.

[0074] According to one embodiment of the present application, the horn cover comprises an anti-sticking portion, which is arranged on the outer wall of the small cover ring and extends from the front edge of the small cover ring to the tail portion, and the position of the inner side opening of the air passage of the main cover body corresponds to the position of the anti-sticking portion.

[0075] According to one embodiment of the present application, the breast pumping device comprises a milk bottle, which is mounted on the assembly and covers the milk discharge one-way valve.

[0076] According to another aspect of the present application, the present application further provides a breast pump, which comprises a main machine and a breast pumping device, the breast pumping device comprising an elastic diaphragm, a milk discharge one-way valve, a horn cover and an assembly, the horn cover comprising a main cover body and a deformable small cover ring, the main cover body having a cover cavity and a front opening, a rear opening and an air passage connected to the cover cavity respectively, the small cover ring being arranged on the main cover body and located in the cover cavity, the assembly having a breast pumping cavity and a first gas passage, a second gas passage, an assembly opening and a milk discharge passage connected to the breast pumping cavity respectively, wherein the elastic diaphragm is arranged on the assembly to allow the gas in the breast pumping cavity of the assembly to be discharged through the first gas passage so that the breast pumping cavity can alternately generate high and low negative pressure, wherein the milk discharge one-way valve is arranged on the assembly to selectively open and close the milk discharge passage of the assembly, wherein the tail portion of the main cover body is mounted on the assembly through the assembly opening of the assembly, and the air passage of the main cover body is connected to the second gas passage of the assembly, wherein the main machine is used to generate gas flow in the first gas passage and the second gas passage of the assembly respectively.

[0077] According to another aspect of the present application, the present application further provides a breast pump, which comprises a main machine and a breast pumping device, the breast pumping device comprising an elastic diaphragm, a milk discharging one-way valve, a horn cover and an assembling part, the horn cover comprising a main cover body and a deformable small cover ring, the main cover body having a cover cavity and a front opening, a rear opening, an air passage and a milk passage respectively communicating with the cover cavity, the small cover ring being arranged in the main cover body and located in the cover cavity, wherein the elastic diaphragm is arranged at a tail portion of the main cover body for closing the rear opening of the main cover body, the breast pumping device forming a breast pumping cavity between the main cover body and the elastic diaphragm, the assembling part having an assembling cavity and a first air passage, a second air passage, an assembling opening and a milk discharging passage respectively communicating with the assembling cavity, wherein the tail portion of the main cover body is mounted in the assembling cavity through the assembling opening of the assembling part, the breast pumping device forming a negative pressure cavity between the elastic diaphragm and the assembling part, the first air passage communicating with the negative pressure cavity, the air passage and the milk passage of the main cover body respectively communicating with the second air passage and the milk discharging passage of the assembling part, wherein the milk discharging one-way valve is arranged in the assembling part for selectively opening and closing the milk discharging passage of the assembling part, and wherein the main machine is used for generating air flow in the first air passage and the second air passage of the assembling part respectively. BRIEF DESCRIPTION OF DRAWINGS

[0078] Fig. 1 is a perspective view of a breast pump according to a preferred embodiment of the present application.

[0079] Fig. 2 is a perspective view of a breast pumping device of the breast pump according to the preferred embodiment of the present application.

[0080] Fig. 3 is an exploded view of the breast pumping device of the breast pump according to the preferred embodiment of the present application.

[0081] Fig. 4 is another exploded view of the breast pumping device of the breast pump according to the preferred embodiment of the present application.

[0082] Fig. 5 is a sectional view of the breast pumping device of the breast pump according to the preferred embodiment of the present application.

[0083] Fig. 6 is a schematic view of the breast pumping device of the breast pump according to the preferred embodiment of the present application in use.

[0084] Fig. 7 is a sectional view of a first variant of the breast pumping device of the breast pump according to the preferred embodiment of the present application.

[0085] Fig. 8 is a sectional view of a second variant of the breast pumping device of the breast pump according to the preferred embodiment of the present application.

[0086] Fig. 9 is a perspective view of a third variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application, from one viewing angle.

[0087] Fig. 10 is a perspective view of the third variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application, from another viewing angle.

[0088] Fig. 11 is an exploded view of the third variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application, from one viewing angle.

[0089] Fig. 12 is an exploded view of the third variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application, from another viewing angle.

[0090] Fig. 13 is a sectional view of the third variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application.

[0091] Fig. 14 is a sectional view of a fourth variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application.

[0092] Fig. 15 is a sectional view of a fifth variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application.

[0093] Fig. 16 is a sectional view of a sixth variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application.

[0094] Fig. 17 is a sectional view of a seventh variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application.

[0095] Fig. 18 is a sectional view of an eighth variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application.

[0096] Fig. 19 is a perspective view of a ninth variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application, from one viewing angle.

[0097] Fig. 20 is an exploded view of the ninth variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application, from one viewing angle.

[0098] Fig. 21 is an exploded view of the ninth variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application, from another viewing angle.

[0099] Fig. 22 is a sectional view of the ninth variant of the breast pump device of the breast pump according to the above preferred embodiment of the present application.

[0100] Fig. 23 is a perspective view of a breast pump according to another preferred embodiment of the present application.

[0101] Fig. 24 is a perspective view of a breast pump according to another preferred embodiment of the present application.

[0102] Fig. 25 is a perspective view of a breast pumping device of the breast pump according to the above preferred embodiment of the present application.

[0103] Fig. 26 is an exploded view of the breast pumping device of the breast pump according to the above preferred embodiment of the present application, from one perspective.

[0104] Fig. 27 is an exploded view of the breast pumping device of the breast pump according to the above preferred embodiment of the present application, from another perspective.

[0105] Fig. 28 is a sectional view of the breast pumping device of the breast pump according to the above preferred embodiment of the present application.

[0106] Fig. 29 is a use state view of the breast pumping device of the breast pump according to the above preferred embodiment of the present application.

[0107] Fig. 30 is a sectional view of a modified example of the breast pumping device of the breast pump according to the above preferred embodiment of the present application.

[0108] Fig. 31 is a perspective view of a breast pump according to another preferred embodiment of the present application.

[0109] Fig. 32 is a perspective view of a breast pumping device of the breast pump according to the above preferred embodiment of the present application.

[0110] Fig. 33 is an exploded view of the breast pumping device of the breast pump according to the above preferred embodiment of the present application, from one perspective.

[0111] Fig. 34 is an exploded view of the breast pumping device of the breast pump according to the above preferred embodiment of the present application, from another perspective.

[0112] Fig. 35 is a sectional view of the breast pumping device of the breast pump according to the above preferred embodiment of the present application, from a perspective view.

[0113] Fig. 36 is an enlarged view of a partial portion of Fig. 35.

[0114] Fig. 37 is a use state view of the breast pumping device of the breast pump according to the above preferred embodiment of the present application.

[0115] Fig. 38 is a sectional view of a modified example of the breast pumping device of the breast pump according to the above preferred embodiment of the present application.

[0116] Fig. 39 is a partial enlarged view of Fig. 38.

[0117] Fig. 40 is a cross-sectional view of another variant of the breast pump of the above preferred embodiment of the present application.

[0118] Fig. 41 is a partial enlarged view of Fig. 40. DETAILED DESCRIPTION

[0119] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The application is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

[0120] Also, in the disclosure of the present application, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are merely for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms cannot be understood as limiting the present application; secondly, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as limiting the number.

[0121] With reference to the drawings of the present application, Figs. 1-6, a breast pump according to a preferred embodiment of the present application will be disclosed and described in the following description, wherein the breast pump comprises at least one breast pump device 1000 and a main machine 2000, the breast pump device 1000 is connected to the main machine 2000, the breast pump device 1000 and the main machine 2000 cooperate with each other to help the user to pump milk.

[0122] Specifically, the breast milk suction device 1000 comprises an assembly 10, and a resilient diaphragm 20, a milk discharge one-way valve 30 and a horn 40 assembled to the assembly 10 respectively.

[0123] More specifically, the assembly 10 has a breast milk suction cavity 101, a first gas passage 102, a second gas passage 103, an assembly opening 104 and a milk discharge passage 105, and the first gas passage 102, the second gas passage 103, the assembly opening 104 and the milk discharge passage 105 are communicated with the breast milk suction cavity 101 respectively.

[0124] The resilient diaphragm 20 is arranged on the assembly 10, so as to drive the gas in the breast milk suction cavity 101 of the assembly 10 to be discharged through the first gas passage 102, so that the breast milk suction cavity 101 of the assembly 10 can form a negative pressure environment. Specifically, the resilient diaphragm 20 is deformable, and when the resilient diaphragm 20 is deformed, the resilient diaphragm 20 can drive the gas in the breast milk suction cavity 101 of the assembly 10 to be discharged through the first gas passage 102, so that the air pressure in the breast milk suction cavity 101 of the assembly 10 can be reduced, so that the breast milk suction cavity 101 of the assembly 10 forms a negative pressure environment.

[0125] The specific way of arranging the resilient diaphragm 20 on the assembly 10 can refer to FIG. 3, FIG. 5 and FIG. 6. Specifically, the assembly 10 has a diaphragm groove 106 with a top opening, the first gas passage 102 and the diaphragm groove 106 are communicated, the resilient diaphragm 20 is bowl-shaped and has a concave cavity 201, after the edge of the resilient diaphragm 20 is sealingly lapped on the edge of the diaphragm groove 106 of the assembly 10, the main body part of the resilient diaphragm 20 sinks to the diaphragm groove 106 of the assembly 10, so as to arrange the resilient diaphragm 20 on the assembly 10, in this way, it is beneficial to reduce the overall volume of the breast milk suction device 1000, and the resilient diaphragm 20 seals the top opening of the diaphragm groove 106 of the assembly 10.

[0126] Preferably, the shape of the elastic diaphragm 20 and the shape and size of the diaphragm groove 106 of the assembly 10 are matched, in such a way that the outer wall of the elastic diaphragm 20 and the inner wall of the assembly 10 for defining the diaphragm groove 106 can be fitted. When the bottom of the elastic diaphragm 20 is deformed towards the direction away from the bottom of the diaphragm groove 106 of the assembly 10, the gas in the suction cavity 101 of the assembly 10 can be driven to be discharged to the diaphragm groove 106 through the first gas passage 102, so as to reduce the air pressure in the suction cavity 101 of the assembly 10 and form a negative pressure environment in the suction cavity 101. When the bottom of the elastic diaphragm 20 is deformed towards the direction close to the bottom of the diaphragm groove 106 of the assembly 10, the gas in the diaphragm groove 106 of the assembly 10 can be driven to enter the suction cavity 101 through the first gas passage 102, so as to increase the air pressure in the suction cavity 101 of the assembly 10. Thus, the suction cavity 101 of the assembly 10 alternately generates greater negative pressure and smaller negative pressure, so as to realize milk suction.

[0127] The way of driving the deformation of the elastic diaphragm 20 can be changing the pressure of the negative pressure of the concave cavity 201 of the elastic diaphragm 20, when the pressure of the negative pressure in the concave cavity 201 of the elastic diaphragm 20 becomes greater, the bottom of the elastic diaphragm 20 is deformed towards the direction away from the bottom of the diaphragm groove 106 of the assembly 10, so as to increase the negative pressure in the suction cavity 101 of the assembly 10 by discharging the gas in the suction cavity 101 of the assembly 10 to the diaphragm groove 106, when the pressure of the negative pressure in the concave cavity 201 of the elastic diaphragm 20 becomes smaller, the bottom of the elastic diaphragm 20 is deformed towards the direction close to the bottom of the diaphragm groove 106 of the assembly 10, so as to decrease the negative pressure in the suction cavity 101 of the assembly 10 by allowing the gas in the diaphragm groove 106 of the assembly 10 to enter the suction cavity 101. Subsequently, how to change the pressure of the negative pressure of the concave cavity 201 of the elastic diaphragm 20 will be described.

[0128] The milk discharge one-way valve 30 is arranged in the assembly 10, and the milk discharge one-way valve 30 is used for selectively opening and closing the milk discharge passage 105 of the assembly 10, when the milk discharge one-way valve 30 closes the milk discharge passage 105 of the assembly 10, the milk sucked is temporarily stored in the suction cavity 101 of the assembly 10, when the milk discharge one-way valve 30 opens the milk discharge passage 105 of the assembly 10, the milk temporarily stored in the suction cavity 101 of the assembly 10 is discharged through the milk discharge passage 105.

[0129] Continuing to refer to FIGS. 3-6, the assembly 10 includes a barrel 11, a flared body 12 extending outwardly from an opening of the barrel 11, a mounting post 13 extending downwardly from a middle portion of the barrel 11, and a diaphragm mounting portion 14 disposed at a junction of the barrel 11 and the flared body 12. In the breast pump of the present disclosure, the barrel 11, the flared body 12, the mounting post 13, and the diaphragm mounting portion 14 of the assembly 10 are integrally formed, e.g., a plastic material can be used to integrally form the barrel 11, the flared body 12, the mounting post 13, and the diaphragm mounting portion 14 by way of an injection molding process.

[0130] The breast pumping cavity 101 and the first gas passage 102 of the assembly 10 are formed in the barrel 11, the second gas passage 103 of the assembly 10 is formed in the flared body 12, the assembly opening 104 of the assembly 10 is formed at a junction of the barrel 11 and the flared body 12, the expression passage 105 of the assembly 10 extends through the mounting post 13, the diaphragm slot 106 of the assembly 10 is formed in the diaphragm mounting portion 14, and the diaphragm slot 106 and the breast pumping cavity 101 are in communication via the first gas passage 102. It is worth mentioning that the breast pumping cavity 101, the first gas passage 102, the second gas passage 103, the assembly opening 104, the expression passage 105, and the diaphragm slot 106 of the assembly 10 are simultaneously formed when the barrel 11, the flared body 12, the mounting post 13, and the diaphragm mounting portion 14 of the assembly 10 are injection molded.

[0131] The periphery of the elastic diaphragm 20 is folded outwardly to form a clamping groove 202, and the edge of the diaphragm mounting portion 14 of the assembly 10 extends into the clamping groove 202 of the elastic diaphragm 20, so that the edge of the elastic diaphragm 20 is sealingly lapped against the edge of the diaphragm slot 106 of the assembly 10, thereby allowing the elastic diaphragm 20 to be assembled to the assembly 10 in a manner that the main body portion of the elastic diaphragm 20 is sunken into the diaphragm slot 106 of the assembly 10. That is, the periphery of the elastic diaphragm 20 wraps around the edge of the diaphragm slot 106 of the assembly 10.

[0132] The expression one-way valve 30 has a valve groove 31, and the mounting post 13 of the assembly 10 is inserted into the valve groove 31 of the expression one-way valve 30, and the expression one-way valve 30 is disposed in the assembly 10 based on friction generated between the expression one-way valve 30 and the mounting post 13 of the assembly 10.

[0133] Referring to FIGS. 1-6, the horn cover 40 has a front opening 401, a rear opening 402, and a lateral perforation 403, the rear of the horn cover 40 is mounted to the assembly 10 at the assembly opening 104 of the assembly 10, the cover cavity of the horn cover 40 is communicated to the milk suction cavity 101 of the assembly 10 through the rear opening 402, the lateral perforation 403 of the horn cover 40 is communicated to the second gas passage 103 of the assembly 10, at this time, the rear of the horn cover 40 extends to the inside of the barrel 11 of the assembly 10, and at least a part of the horn cover 40 is fitted to the horn 12.

[0134] Referring to FIG. 6, when the user wears the breast pump device 1000, the horn cover 40 covers a part of the breast, the front opening 401 of the horn cover 40 is closed by the breast to form a sealed cavity 100 between the horn cover 40 and the breast, the lateral perforation 403 of the horn cover 40 communicates the sealed cavity 100, when the gas in the sealed cavity 100 is discharged through the lateral perforation 403 of the horn cover 40 and the second gas passage 103 of the assembly 10, the sealed cavity 100 forms a negative pressure environment, so that the horn cover 40 is firmly adsorbed to the breast, so that the breast pump device 1000 is prevented from sliding downward relative to the breast.

[0135] In one specific example of the breast pump of the present application, referring to FIG. 1, the main machine 2000 includes a first pump body 2001, a second pump body 2002, a solenoid valve 2003, a first gas pipe 2004, and a second gas pipe 2005, the first gas pipe 2004 is a three-way pipe, three openings of the first gas pipe 2004 are respectively communicated to the recess 201 of the elastic diaphragm 20, the first pump body 2001, and the solenoid valve 2003, the second gas pipe 2005 has two openings, which are respectively communicated to the second gas passage 103 of the assembly 10 and the second pump body 2002. The first pump body 2001 and the solenoid valve 2003 cooperate to form a negative pressure environment in the milk suction cavity 101 of the assembly 10 and alternately form high and low negative pressures to perform breast pumping, the second pump body 2002 can be used to discharge the gas in the sealed cavity 100 through the lateral perforation 403 of the horn cover 40 and the second gas passage 103 of the assembly 10, so that the sealed cavity 100 forms a negative pressure environment, so that the horn cover 40 is firmly adsorbed to the breast, thereby preventing the breast pump device 1000 from sliding downward relative to the breast.

[0136] It can be understood that the pressure of the negative pressure in the sealed cavity 100 is related to the amount of residual gas in the sealed cavity 100, the less the amount of residual gas in the sealed cavity 100, the greater the pressure of the negative pressure in the sealed cavity 100, and correspondingly, the more the amount of residual gas in the sealed cavity 100, the smaller the pressure of the negative pressure in the sealed cavity 100, so the pressure of the negative pressure in the sealed cavity 100 can be controlled by controlling the amount of gas discharged from the lateral perforations 403 of the horn cover 40 and the second gas passage 103 of the assembly 10, so that the breast pump meets the use requirements of different users.

[0137] In addition, during the breast pumping process, due to the activities of the user and other reasons, the sealed cavity 100 may leak, which may cause the size of the negative pressure in the sealed cavity 100 to change unexpectedly. When the sealed cavity 100 leaks, the breast pumping device 1000 allows the gas in the sealed cavity 100 to be discharged again through the lateral perforations 403 of the horn cover 40 and the second gas passage 103 of the assembly 10, so that the pressure in the sealed cavity 100 is maintained stable, thereby ensuring that the breast pumping device 1000 is firmly attached to the breast and improving the comfort of the user when using the breast pumping device 1000. In some examples of the breast pump of the present application, a sensor can be provided on the main machine 2000 to detect the pressure in the sealed cavity 100 to determine whether the sealed cavity 100 leaks. After determining that the sealed cavity 100 leaks, the second pump body 2002 can be used to discharge the gas in the sealed cavity 100 through the lateral perforations 403 of the horn cover 40 and the second gas passage 103 of the assembly 10, thereby ensuring that the horn cover 40 is firmly attached to the breast.

[0138] Referring to FIGS. 5 and 6, the horn cover 40 includes a main cover body 41 and a small cover ring 42, the front opening 401, the rear opening 402 and the lateral perforations 403 of the horn cover 40 are formed in the main cover body 41, and the small cover ring 42 extends inwardly and forwardly from the inner wall of the main cover body 41, so that the small cover ring 42 protrudes from the inner wall of the main cover body 41, wherein the rear part of the main cover body 41 is mounted to the assembly 10 at the assembly opening 104 of the assembly 10. Preferably, the inner wall of the barrel 11 is provided with a step 110, and the rear part of the main cover body 41 is provided with a hook ring 410, and the hook ring 410 of the main cover body 41 hooks the step 110 of the barrel 11, so that the rear part of the main cover body 41 is reliably mounted to the assembly 10.

[0139] When the user wears the breast pump device 1000, the front part of the main cover body 41 of the horn cover 40 is attached to the back of the breast, allowing the breast to close the front opening 401 of the horn cover 40, and the small cover ring 42 is attached to the back of the areola part to form the sealed cavity 100 between the main cover body 41, the small cover ring 42 and the breast. It can be understood that the space of the sealed cavity 100 formed between the main cover body 41, the small cover ring 42 and the breast is small, so the amount of gas in the sealed cavity 100 can be quickly adjusted.

[0140] Further, the horn cover 40 comprises a blocking ring 43 extending inwardly and rearwardly from the inner wall of the main cover body 41. When the user wears the breast pump device 1000, the blocking ring 43 abuts against the areola part or the back of the areola part. During the breast pumping process, when the air pressure in the breast pumping cavity 101 of the assembly 10 decreases, the areola part is pulled towards the breast pumping cavity 101 of the assembly 10. Since the blocking ring 43 abuts against the areola part or the back of the areola part, the blocking ring 43 has the effect of blocking the areola part from entering the breast pumping cavity 101 of the assembly 10. At this time, the areola part is squeezed to squeeze out milk and temporarily store it in the breast pumping cavity 101 of the assembly 10, which helps to improve the breast pumping efficiency of the breast pump.

[0141] Preferably, the blocking ring 43 is deformable, which makes the blocking ring 43 deformable towards the breast pumping cavity 101 of the assembly 10 while providing resistance, so that the areola part is resisted while being avoided from being squeezed hard, thereby improving comfort. Preferably, the end of the blocking ring 43 extends rearwardly and curvedly, so that when the user wears the breast pump device 1000, the end surface of the blocking ring 43 can be avoided from contacting the nipple, thereby improving the comfort of the user when using the breast pump to pump milk.

[0142] More preferably, referring to Figs. 5 and 6, the small cover ring 42 and the blocking ring 43 extend at the same position of the inner wall of the main cover body 41, and the small cover ring 42 and the blocking ring 43 are in back-to-back state. That is, the cover ring root 421 of the small cover ring 42 for connecting the main cover body 41 and the blocking ring root 431 of the blocking ring 43 for connecting the main cover body 41 are integrated, so that the small cover ring 42 and the blocking ring 43 can be linked to wriggle the areola part to improve the efficiency of breast pumping during breast pumping. Specifically, when the negative pressure in the breast pumping cavity 101 of the assembly 10 increases, the areola part is pulled towards the breast pumping cavity 101 of the assembly 10, at this time, on the one hand, the blocking ring 43 has the effect of blocking the areola part from entering the breast pumping cavity 101 of the assembly 10 and pressing the areola part, on the other hand, the blocking ring 43 expands outward and the small cover ring 42 contracts inward, so that the small cover ring 42 presses the back side of the areola part, when the negative pressure in the breast pumping cavity 101 of the assembly 10 decreases, the areola part resets, the blocking ring 43 contracts inward and the small cover ring 42 expands outward, so that the small cover ring 42 releases the back side of the areola part, so that the small cover ring 42 and the blocking ring 43 can be linked to wriggle the areola part to improve the efficiency of breast pumping during breast pumping.

[0143] In this specific example of the breast pump of the present application shown in Figs. 1 to 6, the main cover body 41, the small cover ring 42 and the blocking ring 43 are integrated, for example, a silica gel material can be integrally formed the main cover body 41, the small cover ring 42 and the blocking ring 43.

[0144] Further, with reference to Figs. 5 and 6, the main cover 41 comprises a rear section 411 and a front section 412, the rear section 411 is trumpet-shaped, and the front section 412 extends obliquely forward from the rear section 411, i.e. the rear section 411 and the front section 412 have different extending directions, so that the main cover 41 forms a cover groove 413 at the joint of the rear section 411 and the front section 412, and the side perforations 403 of the trumpet cover 40 are formed at the position of the cover groove 413 of the main cover 41, in this way, on the one hand, when the breast pump 1000 is worn by a user, the cover groove 413 of the main cover 41 and the joint relationship between the main cover 41 and the small cover ring 42 enable the trumpet cover 40 and the breast to form the sealed cavity 100, on the other hand, the front opening 401 of the trumpet cover 40 can have a smaller size, so that the front section 412 of the main cover 41 can provide a gripping force for gripping the rear of the breast, which is conducive to the reliable wearing of the breast pump 1000.

[0145] With reference to Figs. 5 and 6, the trumpet cover 40 further comprises an assembly column 44, the assembly column 44 extends outward from the main cover 41, and the side perforations 403 of the trumpet cover 40 pass through the assembly column 44, wherein the assembly piece 10 has an assembly hole 107, the assembly hole 107 is in communication with the second gas passage 103, and after the rear of the main cover 41 is mounted to the assembly piece 10 at the assembly opening 104 of the assembly piece 10, the assembly column 44 of the trumpet cover 40 is inserted into the assembly hole 107 of the assembly piece 10, in this way, on the one hand, the trumpet cover 40 can be reliably mounted to the assembly piece 10, on the other hand, the assembly column 44 of the trumpet cover 40 and the assembly hole 107 of the assembly piece 10 can ensure that the side perforations 403 of the trumpet cover 40 and the second gas passage 103 of the assembly piece 10 are in communication, and avoid air leakage at this connection position.

[0146] Further, with reference to Figs. 1 to 6, the breast pump further comprises a housing 50, the housing 50 is mounted to the assembly piece 10, and the periphery of the elastic diaphragm 20 is clamped between the assembly piece 10 and the housing 50, in this way, the elastic diaphragm 20 can be reliably arranged on the assembly piece 10, and the edge of the elastic diaphragm 20 is ensured to be sealingly abutted on the edge of the diaphragm groove 106 of the assembly piece 10.

[0147] Preferably, the edges of the housing 50 and the edges of the horn body 12 of the assembly 10 are sealingly installed, the breast pump forms a milk storage cavity 60 between the housing 50 and the assembly 10, and the milk discharge one-way valve 30 is located in the milk storage cavity 60, so that when the milk discharge one-way valve 30 opens the milk discharge passage 105 of the assembly 10, the milk temporarily stored in the milk storage cavity 101 of the assembly 10 is discharged to the milk storage cavity 60 through the milk discharge passage 105.

[0148] In addition, with reference to FIGS. 3, 5 and 6, the housing 50 further has a first air hole 51 and a second air hole 52, wherein the first air hole 51 of the housing 50 is communicated with the concave cavity 201 of the elastic diaphragm 20, one end of the first air pipe 2004 is communicated with the first air hole 51 of the housing 50, and through the first air hole 51 of the housing 50, the first pump body 2001 and the electromagnetic valve 2003 can cooperate to make the gas in the concave cavity 201 of the elastic diaphragm 20 be extracted to deform the bottom of the elastic diaphragm 20 away from the bottom of the diaphragm groove 106 of the assembly 10, and correspondingly, through the first air hole 51 of the housing 50, the first pump body 2001 and the electromagnetic valve 2003 can cooperate to make the gas in the external environment enter the concave cavity 201 of the elastic diaphragm 20 to deform the bottom of the elastic diaphragm 20 to be close to the bottom of the diaphragm groove 106 of the assembly 10, so that the milk storage cavity 101 of the assembly 10 alternately generates high and low negative pressure to achieve milk suction, wherein the second air hole 52 of the housing 50 is communicated with the second gas passage 103 of the assembly 10, one end of the second air pipe 2005 is communicated with the second air hole 52 of the housing 50, so that the second pump body 2002 can discharge the gas in the sealed cavity 100 through the side perforation 403 of the horn cover 40, the second gas passage 103 of the assembly 10 and the second air hole 52 of the housing 50 to make the sealed cavity 100 form a negative pressure environment.

[0149] It is worth mentioning that the specific way of communication between the end of the first air tube 2004 and the first air hole 51 of the housing 50 and the specific way of communication between the end of the second air tube 2005 and the second air hole 52 of the housing 50 are not limited in the breast pump of the present application, for example, the end of the first air tube 2004 can be inserted into the first air hole 51 of the housing 50 to install the end of the first air tube 2004 to the housing 50 and make the end of the first air tube 2004 and the first air hole 51 of the housing 50 communicate, the end of the second air tube 2005 can be inserted into the second air hole 52 of the housing 50 to install the end of the second air tube 2005 to the housing 50 and make the end of the second air tube 2005 and the second air hole 52 of the housing 50 communicate.

[0150] Preferably, referring to FIG. 3, FIG. 5 and FIG. 6, the elastic diaphragm 20 has a diaphragm hole 21, the first cylinder 120 of the assembly 10 for forming the second gas passage 103 and the second cylinder 53 of the housing 50 for forming the second air hole 52 are respectively inserted into the diaphragm hole 21 of the elastic diaphragm 20 in such a way that, on the one hand, the elastic diaphragm 20 can be reliably arranged between the assembly 10 and the housing 50, on the other hand, the diaphragm hole 21 of the elastic diaphragm 20 can communicate the second gas passage 103 of the assembly 10 and the second air hole 52 of the housing 50 and avoid air leakage.

[0151] The process of using the breast pumping device 1000 can be: firstly, turning the front section 412 of the main cover 41 backward; secondly, after the small cover ring 42 is attached to the front of the breast in a way of covering the areola position, restoring the front section 412 of the main cover 41, at this time the breast seals the front opening 401 of the horn cover 40, so as to form the sealed cavity 100 between the rear section 411, the front section 412, the small cover ring 42 and the breast, at this time the sealed cavity 100 is a negative pressure environment; thirdly, discharging the gas in the sealed cavity 100 through the side perforations 403 of the horn cover 40, the second gas passage 103 of the assembly 10 and the second gas hole 52 of the shell 50 by the second pump body 2002, so as to further increase the pressure in the sealed cavity 100, so that the breast pumping device 1000 can be firmly adsorbed to the breast, in the process of breast pumping, when the sealed cavity 100 leaks, the second pump body 2002 discharges the gas in the sealed cavity 100 through the side perforations 403 of the horn cover 40, the second gas passage 103 of the assembly 10 and the second gas hole 52 of the shell 50, so as to ensure that the breast pumping device 1000 is firmly adsorbed to the breast; then, the first pump body 2001 and the electromagnetic valve 2003 cooperate with each other to alternately generate a larger negative pressure and a smaller negative pressure in the breast pumping cavity 101 of the assembly 10, so as to realize breast pumping.

[0152] It can be understood that when the first pump body 2001 and the electromagnetic valve 2003 cooperate to generate a large negative pressure in the breast pumping cavity 101 of the assembly 10, on the one hand, the breast milk is temporarily stored in the breast pumping cavity 101 of the assembly 10 when the breast milk unidirectional valve 30 closes the breast milk passage 105 of the assembly 10, on the other hand, the areola is pulled towards the breast pumping cavity 101 of the assembly 10, the blocking ring 43 has the effect of blocking the areola from entering the breast pumping cavity 101 of the assembly 10 and squeezing the areola, at the same time, the blocking ring 43 expands outward and the small cover ring 42 contracts inward, so that the small cover ring 42 squeezes the back side of the areola. When the first pump body 2001 and the electromagnetic valve 2003 cooperate to generate a reduced negative pressure in the breast pumping cavity 101 of the assembly 10, on the one hand, the breast milk temporarily stored in the breast pumping cavity 101 of the assembly 10 is discharged through the breast milk passage 105 when the breast milk unidirectional valve 30 opens the breast milk passage 105 of the assembly 10, on the other hand, the areola returns to its original position, the blocking ring 43 contracts inward and the small cover ring 42 expands outward, so that the small cover ring 42 releases the back side of the areola. In this way, the small cover ring 42 and the blocking ring 43 can be linked together, so that the small cover ring 42 and the blocking ring 43 can peristaltically squeeze the areola during the breast pumping process, thereby improving the efficiency of breast pumping.

[0153] Figure 7 shows a variant of the breast pumping device 1000 according to the above preferred embodiment of the present application, which is different from the breast pumping device 1000 shown in Figures 1 to 6 in that, in this specific example of the breast pumping device 1000 shown in Figure 7, the side perforations 403 of the horn cover 40 are formed on the rear segment 411 of the main cover body 41. Second, the breast pump comprises a small cover 70, which has an inner clamping ring 71, an outer clamping ring 72, a clamping cavity 73 formed between the inner clamping ring 71 and the outer clamping ring 72, and a small cover hole 74. The periphery of the elastic diaphragm 20 is inserted into the clamping cavity 73 of the small cover 70, so that the inner clamping ring 71 and the outer clamping ring 72 clamp the periphery of the elastic diaphragm 20 on the inner and outer sides of the elastic diaphragm 20, thereby reliably installing the elastic diaphragm 20 on the assembly 10, wherein the small cover hole 74 of the small cover 70 is communicated with the recessed cavity 201 of the elastic diaphragm 20, and the gas in the recessed cavity 201 of the elastic diaphragm 20 can be extracted through the small cover hole 74 of the small cover 70.

[0154] Figure 8 shows a variant of the breast pumping device 1000 according to the above preferred embodiment of the present application, which is different from the breast pumping device 1000 shown in Figure 7 in that the horn cover 40 in this specific example of the breast pumping device 1000 shown in Figure 8 is not provided with the main cover body 41 and the lateral perforations 403.

[0155] Specifically, the horn cover 40 comprises an assembly ring 45 and a horn-shaped peristaltic ring 46, the middle part of the peristaltic ring 46 is provided at the front part of the assembly ring 45, the rear part of the peristaltic ring 46 forms the blocking ring 43, the front part of the peristaltic ring 46 forms the small cover ring 42, the peristaltic ring 46 forms the front opening 401 of the horn cover 40, and the assembly ring 45 forms the rear opening 402 of the horn cover 40. The assembly ring 45 is mounted to the assembly piece 10 at the assembly opening 104 of the assembly piece 10, on the one hand, the cover cavity of the horn cover 40 is communicated to the breast pumping cavity 101 of the assembly piece 10 through the rear opening 402, and on the other hand, the horn cover 40 avoids the second gas passage 103 of the assembly piece 10, i.e. the inner opening of the second gas passage 103 of the assembly piece 10 is directly exposed.

[0156] When the user wears the breast pumping device 1000, the peristaltic ring 46 abuts against the areola part, the horn body 12 of the assembly piece 10 is attached to the breast, the opening of the horn body 12 is closed by the breast, the sealed cavity 100 is formed between the horn body 12, the peristaltic ring 46 and the breast, the second gas passage 103 of the assembly piece 10 is communicated to the sealed cavity 100, and after the gas in the sealed cavity 100 is discharged through the second gas passage 103 of the assembly piece 10, the sealed cavity 100 forms a negative pressure environment, so that the breast pumping device 1000 is firmly adsorbed to the breast, thus avoiding the situation that the breast pumping device 1000 slides downward relative to the breast.

[0157] Fig. 9 to Fig. 13 show a variant of the breast pump 1000 according to the above preferred embodiment of the present application, which is different from the breast pump 1000 shown in Fig. 1 to Fig. 6 in that, in this specific example of the breast pump 1000 shown in Fig. 9 to Fig. 13, first, the small cover ring 42 is detachably mounted on the main cover body 41, so that the user can select a proper size of the small cover ring 42 according to the need. Second, the diaphragm mounting portion 14 and the outer shell 50 are of an integrated structure, the diaphragm mounting portion 14 has a gas hole 141, the diaphragm groove 106 is formed in the diaphragm mounting portion 14, and the gas hole 141 and the diaphragm groove 106 are in communication, after the outer shell 50 is mounted on the assembly 10, the gas hole 141 of the diaphragm mounting portion 14 and the first gas passage 102 of the assembly 10 are in communication. Third, the periphery of the elastic diaphragm 20 is inserted into the clamping cavity 73 of the small cover 70, so that the inner clamping ring 71 and the outer clamping ring 72 clamp the periphery of the elastic diaphragm 20 on the inner and outer sides of the elastic diaphragm 20, so that the elastic diaphragm 20 is reliably mounted on the assembly 10, wherein the small cover hole 74 of the small cover 70 is in communication with the recessed cavity 201 of the elastic diaphragm 20, and the gas in the recessed cavity 201 of the elastic diaphragm 20 can be extracted through the small cover hole 74 of the small cover 70.

[0158] Preferably, the breast pump comprises a flexible gasket 80, the gasket 80 has a tapered groove 81 and a gasket hole 82 extending downward from the tapered groove 81, the gasket 80 is arranged on the barrel 11, the gasket hole 82 and the first gas passage 102 of the assembly 10 are in communication. After the outer shell 50 is mounted on the assembly 10, the edge of the diaphragm mounting portion 14 for forming the gas hole 141 sinks into the tapered groove 81 of the gasket 80, and the gas hole 141 of the diaphragm mounting portion 14 and the gasket hole 82 of the gasket 80 are in communication, so that the gasket hole 82 of the gasket 80 makes the gas hole 141 of the diaphragm mounting portion 14 and the first gas passage 102 of the assembly 10 in communication, and avoids gas leakage.

[0159] Preferably, the barrel 11 has a groove 111 surrounding the first gas passage 102 of the assembly 10, and the gasket 80 is inserted into the groove 111 of the barrel 11 to set the gasket 80 on the barrel 11, and the gasket hole 82 of the gasket 80 is communicated with the first gas passage 102 of the assembly 10. In one specific example of the breast pump of the present application, the gasket 80 is mounted on the groove 111 of the barrel 11, and in another specific example, the gasket 80 is formed on the groove 111 of the barrel 11.

[0160] In addition, the breast pump further comprises an anti-sticking part 90 arranged outside the small cover ring 42, which prevents the outer wall of the small cover ring 42 and the inner wall of the main cover body 41 from sticking to each other to block the lateral perforations 403 of the horn cover 40, so as to ensure that the gas in the sealed cavity 100 can be drawn out through the lateral perforations 403 of the horn cover 40, thereby ensuring that the breast pump is firmly attached to the breast.

[0161] Preferably, in this specific example of the breast pump 1000 of the present application shown in FIGS. 9-13, the anti-sticking part 90 is a groove extending from the front edge of the small cover ring 42 to a position adjacent to the lateral perforations 403. When the gas in the sealed cavity 100 is drawn out through the lateral perforations 403 of the horn cover 40, even if the deformed outer wall of the small cover ring 42 is close to the inner wall of the main cover body 41, the anti-sticking part 90 arranged on the outer wall of the small cover ring 42 still allows the gas in the sealed cavity 100 to enter between the inner wall of the main cover body 41 and the outer wall of the small cover ring 42, preventing the outer wall of the small cover ring 42 and the inner wall of the main cover body 41 from sticking to each other to block the lateral perforations 403 of the horn cover 40. Alternatively, in other specific examples of the breast pump 1000 of the present application, the anti-sticking part 90 can also be a protrusion extending from the front edge of the small cover ring 42 to a position adjacent to the lateral perforations 403, which is used to prevent the outer wall of the small cover ring 42 and the inner wall of the main cover body 41 from sticking to each other to block the lateral perforations 403 of the horn cover 40.

[0162] Preferably, the number of anti-sticking parts 90 is multiple, which are arranged around the entire circumferential direction of the small cover ring 42, so that the user does not need to distinguish the installation angle of the small cover ring 42 when installing the small cover ring 42 on the main cover body 41, and after the small cover ring 42 is installed on the main cover body 41, the lateral perforations 403 of the horn cover 40 can correspond to one anti-sticking part 90.

[0163] Referring to FIG. 12 and FIG. 13, the horn body 12 of the assembly 10 has an avoiding hole 121, and the hole column 54 of the shell 50 for forming the second air hole 52 is inserted into the side hole 403 of the horn cover 40 after passing through the avoiding hole 121 of the horn body 12, so that the side hole 403 of the horn cover 40 and the second air hole 52 of the shell 50 are communicated, and air leakage is avoided, and the gas in the sealed cavity 100 can be extracted through the side hole 403 of the horn cover 40 and the second air hole 52 of the shell 50, so that the sealed cavity 100 forms a negative pressure environment.

[0164] Continuing to refer to FIG. 11 to FIG. 13, the horn body 12 of the assembly 10 has a positioning groove 122, and the avoiding hole 121 is communicated with the positioning groove 122, and the outer wall of the main cover body 41 is provided with a positioning boss 414, and the external opening of the side hole 403 is formed on the end face of the positioning boss 414, and the positioning boss 414 of the main cover body 41 is positioned in the positioning groove 122 of the horn body 12, so as to position the installation direction of the horn cover 40.

[0165] FIG. 14 shows a variant of the breast pump 1000 according to the above preferred embodiment of the present application, which is different from the breast pump 1000 shown in FIG. 9 to FIG. 13 in that, in this specific example of the breast pump 1000 shown in FIG. 14, the anti-sticking part 90 is a groove provided on the inner wall of the main cover body 41, and the anti-sticking part 90 and the side hole 403 are communicated, and the anti-sticking part 90 is used to prevent the outer wall of the small cover ring 42 and the inner wall of the main cover body 41 from being bonded to cause the side hole 403 of the horn cover 40 to be blocked, so as to ensure that the gas in the sealed cavity 100 can be extracted through the side hole 403 of the horn cover 40, thereby ensuring that the breast pump is firmly attached to the breast. Alternatively, in other specific examples of the breast pump 1000 of the present application, the anti-sticking part 90 can also be a convex column provided on the inner wall of the main cover body 41, which is used to prevent the outer wall of the small cover ring 42 and the inner wall of the main cover body 41 from being bonded to cause the side hole 403 of the horn cover 40 to be blocked.

[0166] FIG. 15 shows a variant of the breast pump 1000 according to the above preferred embodiment of the present application, which is different from the breast pump 1000 shown in FIG. 9 to FIG. 13 in that, in this specific example of the breast pump 1000 shown in FIG. 15, the horn cover 40 further comprises an annular framework 45, which is arranged at the tail end of the small cover ring 42, and is used to maintain the shape of the tail end of the small cover ring 42, so as to ensure that the small cover ring 42 is reliably installed on the main cover body 41.

[0167] It is worth mentioning that the specific way of arranging the annular skeleton 45 at the tail end of the small cover ring 42 is not limited in the breast pump 1000 according to the present application. For example, in one specific embodiment of the breast pump 1000, the annular skeleton 45 is integrally combined with the tail end of the small cover ring 42 during the molding process, so as to arrange the annular skeleton 45 at the tail end of the small cover ring 42.

[0168] Figure 16 shows a variant of the breast pump 1000 according to the above preferred embodiment of the present application, which is different from the breast pump 1000 shown in Figure 14 in that, in this specific embodiment of the breast pump 1000 shown in Figure 16, the tail end of the small cover ring 42 is arranged with an annular skeleton 45 for maintaining the shape of the tail end of the small cover ring 42, so as to ensure that the small cover ring 42 is reliably installed on the main cover body 41.

[0169] Figure 17 shows another specific embodiment of the breast pump 1000 according to the above preferred embodiment of the present application, wherein the breast pump 1000 comprises the assembly 10 and the milk discharge one-way valve 30, the horn cover 40 and the housing 50 respectively assembled on the assembly 10.

[0170] Specifically, the assembly 10 comprises the barrel 11 and the horn 12, the barrel 11 has a barrel cavity 112 and a first air passage 113, a second air passage 114 and a barrel milk hole 115 respectively communicated with the barrel cavity 112, and the horn 12 extends outward from the front side of the barrel 11. The one-way valve 30 is installed on the barrel 11 for opening and closing the barrel milk hole 115 of the barrel 11. The horn cover 40 comprises the main cover 41 and the deformable part 46, the deformable part 46 is arranged at the tail of the main cover 41 to form the milk suction cavity 101 between the main cover 41 and the deformable part 46, the main cover 41 has a cover milk hole 415 communicated with the milk suction cavity 101, wherein the tail of the main cover 41 is installed on the barrel cavity 112 of the barrel 11, the cover milk hole 415 of the main cover 41 and the barrel milk hole 115 of the barrel 11 correspond and communicate with each other, the breast pump 1000 forms a negative pressure cavity 108 between the deformable part 46 and the barrel 11, the first air passage 113 of the barrel 11 is communicated with the negative pressure cavity 108, and the second air passage 114 of the barrel 11 is communicated with the side hole 403 of the main cover 41. The shell 50 has the first air hole 51 and the second air hole 52, the periphery of the shell 50 is sealingly installed on the periphery of the horn 12, the breast pump forms the milk storage cavity 60 between the shell 50 and the assembly 10, the first air hole 51 of the shell 50 is communicated with the first air passage 113 of the barrel 11, and the second air hole 52 of the shell 50 is communicated with the second air passage 114 of the barrel 11.

[0171] When the user wears the breast pump 1000, the main cover 41 of the horn cover 40 covers a part of the breast, the front opening of the main cover 41 is closed by the breast to form the sealed cavity 100 between the horn cover 40 and the breast, the side hole 403 of the main cover 41 is communicated with the sealed cavity 100, and when the gas in the sealed cavity 100 is discharged through the side hole 403 of the main cover 41 and the second air hole 52 of the shell 50, the sealed cavity 1000 forms a negative pressure environment, so that the horn cover 40 is firmly adsorbed on the breast, thereby avoiding the situation that the breast pump 1000 slides downward relative to the breast.

[0172] Further, the horn cover 40 comprises the small cover ring 42, which is arranged on the main cover body 41 and extends towards the front of the main cover body 41. When the user wears the breast pump device 1000, the front of the main cover body 41 is fitted to the back of the breast, allowing the breast to close the front opening of the main cover body 41, and the small cover ring 42 is fitted to the back of the areola part of the breast, forming the sealed cavity 100 between the main cover body 41, the small cover ring 42 and the breast. It can be understood that the space of the sealed cavity 100 formed between the main cover body 41, the small cover ring 42 and the breast is small, so the amount of gas in the sealed cavity 100 can be quickly adjusted.

[0173] In this specific example of the breast pump device 1000 of the present application shown in FIG. 17, the small cover ring 42 is detachably mounted on the main cover body 41 to facilitate cleaning of the breast pump and allow the user to select the appropriate size of the small cover ring 42 as needed. Alternatively, in other specific examples of the breast pump device 1000 of the present application, the small cover ring 42 and the main cover body 41 are integrated.

[0174] Continuing to refer to FIG. 17, the breast pump further comprises two flexible gaskets 80, each having the tapered groove 81 and the gasket hole 82 extending downward from the tapered groove 81, which are arranged on the barrel 11. The gasket hole 82 of one gasket 80 is in communication with the first air passage 113 of the barrel 11, and the gasket hole 82 of the other gasket 80 is in communication with the second air passage 114 of the barrel 11. After the housing 50 is mounted on the assembly 10, a first hole column 54 of the housing 50 for forming the first air hole 51 is inserted into the tapered groove 81 of one gasket 80, so that the first air hole 51 of the housing 50 is in communication with the first air passage 113 of the barrel 11 and air leakage is avoided. A second hole column 55 of the housing 50 for forming the second air hole 52 is inserted into the tapered groove 81 of the other gasket 80, so that the second air hole 52 of the housing 50 is in communication with the second air passage 114 of the barrel 11 and air leakage is avoided.

[0175] Preferably, the barrel 11 has two of the grooves 111, one of the grooves 111 encircles the first air passage 113 of the barrel 11, one of the gaskets 80 is embedded in this groove 111 of the barrel 11 to set this gasket 80 on the barrel 11, and the gasket hole 82 of this gasket 80 is in communication with the first air passage 113 of the barrel 11, and the other groove 111 encircles the second air passage 114 of the barrel 11, the other gasket 80 is embedded in the other groove 111 of the barrel 11 to set this gasket 80 on the barrel 11, and the gasket hole 82 of this gasket 80 is in communication with the second air passage 114 of the barrel 11.

[0176] Fig. 18 shows a variant of the breast pump 1000 according to the above preferred embodiment of the present application, which is different from the breast pump 1000 shown in Fig. 17 in that, in this specific example of the breast pump 1000 shown in Fig. 18, the horn cover 40 further comprises the annular framework 45, which is arranged at the tail of the main cover body 41 to prevent the tail of the main cover body 41 from being deformed, in this way, the tail of the main cover body 41 can be reliably mounted on the barrel 11 and air leakage can be avoided. Preferably, the annular framework 45 is embedded in the interior of the main cover body 41.

[0177] Figs. 19 to 22 show another specific example of the breast pump 1000 according to the above preferred embodiment of the present application, wherein the breast pump 1000 comprises the assembly 10 and the milk discharge one-way valve 30, the horn cover 40 and a feeding bottle 200 assembled on the assembly 10, respectively.

[0178] Specifically, the assembly 10 comprises the barrel 11 and the horn 12, the barrel 11 has the barrel cavity 112 and the first air passage 113, the second air passage 114 and the barrel milk hole 115 which are communicated with the barrel cavity 112 respectively, and the horn 12 extends outwardly from the front side of the barrel 11. The milk discharge one-way valve 30 is installed on the barrel 11 for opening and closing the barrel milk hole 115 of the barrel 11. The horn cover 40 comprises the main cover body 41 and the deformable part 46 which is arranged at the tail of the main cover body 41 to form a breast milk suction cavity 101 between the main cover body 41 and the deformable part 46, the main cover body 41 has the cover milk hole 415 and the lateral perforation 403, the cover milk hole 415 is communicated with the breast milk suction cavity 101, wherein the tail of the main cover body 41 is installed on the barrel cavity 112 of the barrel 11, the cover milk hole 415 of the main cover body 41 and the barrel milk hole 115 of the barrel 11 correspond and communicate with each other, the breast milk suction device 1000 forms the negative pressure cavity 108 between the deformable part 46 and the barrel 11, the first air passage 113 of the barrel 11 is communicated with the negative pressure cavity 108, and the second air passage 114 of the barrel 11 is communicated with the lateral perforation 403 of the main cover body 41. The milk bottle 200 is installed on the bottom of the barrel 11, and the milk bottle 200 covers the milk discharge one-way valve 30.

[0179] When the user wears the breast milk suction device 1000, the main cover body 41 of the horn cover 40 covers a part of the breast, the front opening of the main cover body 41 is closed by the breast to form the sealed cavity 100 between the horn cover 40 and the breast, the lateral perforation 403 of the main cover body 41 is communicated with the sealed cavity 100, and when the gas in the sealed cavity 100 is discharged through the lateral perforation 403 of the main cover body 41, the sealed cavity 100 forms a negative pressure environment to enable the horn cover 40 to be firmly adsorbed on the breast, so that the breast milk suction device 1000 can be prevented from sliding downward relative to the breast.

[0180] Further, the horn cover 40 comprises a small cover ring 42, which is arranged on the main cover body 41 and extends towards the front of the main cover body 41. When the user wears the breast pump device 1000, the front of the main cover body 41 is fitted to the back of the breast, allowing the breast to close the front opening of the main cover body 41, and the small cover ring 42 is fitted to the back of the areola part of the breast, forming the sealed cavity 100 between the main cover body 41, the small cover ring 42 and the breast. It can be understood that the space of the sealed cavity 100 formed between the main cover body 41, the small cover ring 42 and the breast is small, so the amount of gas in the sealed cavity can be quickly adjusted.

[0181] In this specific example of the breast pump device 1000 of the present application shown in FIGS. 19-22, the small cover ring 42 is detachably mounted on the main cover body 41, so as to facilitate cleaning of the breast pump and allow the user to select a small cover ring 42 of appropriate size as needed. Alternatively, in other specific examples of the breast pump device 1000 of the present application, the small cover ring 42 and the main cover body 41 are integrated.

[0182] FIG. 23 shows a breast pump according to another preferred embodiment of the present application, which is different from the breast pump shown in FIGS. 1-6 in that, in this specific example of the breast pump of the present application shown in FIG. 23, the main machine 2000 comprises a pump body 2006, a first electromagnetic valve 2007, a second electromagnetic valve 2008, a three-way adapter 2009, a first air pipe 20010, a second air pipe 20011 and a three-way air pipe 20012, wherein one end of the first air pipe 20010 is connected to the first opening of the three-way adapter 2009, and the other end is connected to the first air hole 51 of the shell 50, one opening of the first electromagnetic valve 2007 is connected to the second opening of the three-way adapter 2009, one end of the second air pipe 20011 is connected to one opening of the second electromagnetic valve 2008, and the other end is connected to the second air hole 52 of the shell 50, the first opening of the three-way air pipe 20012 is connected to the other opening of the second electromagnetic valve 2008, the second opening of the three-way air pipe 20012 is connected to the third opening of the three-way adapter 2009, and the third opening of the three-way air pipe 20012 is connected to one opening of the pump body 2006.

[0183] In operation, the pump body 2006 and the first electromagnetic valve 2007 cooperate to alternately generate a high negative pressure and a low negative pressure in the milk suction cavity 101 of the assembly 10 for milk suction, and the pump body 2006 and the second electromagnetic valve 2007 cooperate to maintain a constant negative pressure in the sealing cavity 100 to ensure that the breast pump 1000 is firmly attached to the breast.

[0184] With reference to the drawings of the present application, a breast pump according to a preferred embodiment of the present application will be disclosed and described in the following description, wherein the breast pump comprises at least one breast pump device 1000A and a main machine 2000A, and the breast pump device 1000A is connected to the main machine 2000A.

[0185] Specifically, the breast pump device 1000A comprises an assembly 10A, an elastic diaphragm 20A, a milk discharge one-way valve 30A, and a horn 40A.

[0186] More specifically, with reference to FIG. 28 and FIG. 29, the assembly 10A has a milk suction cavity 101A, a first gas passage 102A, a second gas passage 103A, an assembly opening 104A, and a milk discharge passage 105A, and the first gas passage 102A, the second gas passage 103A, the assembly opening 104A, and the milk discharge passage 105A are respectively communicated with the milk suction cavity 101A. In this specific example of the breast pump of the present application shown in FIG. 24 to FIG. 29, the assembly 10A can be an injection molded part, and a plastic material can be used to form the assembly 10A in one piece by means of an injection molding process.

[0187] The elastic diaphragm 20A is arranged on the assembly 10A to drive the gas in the milk suction cavity 101A of the assembly 10A to be discharged through the first gas passage 102A, so as to alternately generate a high and low negative pressure in the milk suction cavity 101A of the assembly 10A.

[0188] Specifically, the elastic diaphragm 20A is deformable, and when the elastic diaphragm 20A is deformed, the elastic diaphragm 20A drives the gas in the milk suction cavity 101A of the assembly 10A to be discharged through the first gas passage 102A, so that the air pressure in the milk suction cavity 101A of the assembly 10A can be reduced, so that the milk suction cavity 101A of the assembly 10A alternately generates a high and low negative pressure. In this specific example of the breast pump of the present application shown in FIG. 24 to FIG. 29, the elastic diaphragm 20A can be made of silica gel material, so that the elastic diaphragm 20A is deformable.

[0189] The specific way of arranging the elastic diaphragm 20A in the assembly 10A having a diaphragm groove 106A, which is in communication with the first gas passage 102A, and the elastic diaphragm 20A being in the shape of a bowl such that the elastic diaphragm 20A has a concave cavity 21A, so that when the edge of the elastic diaphragm 20A is sealingly lapped on the edge of the diaphragm groove 106A of the assembly 10A, the elastic diaphragm 20A is entirely sunken into the diaphragm groove 106A of the assembly 10A, which is advantageous for reducing the overall volume of the breast pump. That is, the elastic diaphragm 20A closes the opening of the diaphragm groove 106A of the assembly 10A.

[0190] Preferably, the shape of the elastic diaphragm 20A and the shape and size of the diaphragm groove 106A of the assembly 10A are matched, so that the outer wall of the elastic diaphragm 20A and the inner wall of the assembly 10A for defining the diaphragm groove 106A can be fitted. When the bottom of the elastic diaphragm 20A is deformed towards the direction away from the bottom of the diaphragm groove 106A of the assembly 10A, the gas in the breast pumping cavity 101A of the assembly 10A can be driven to be discharged to the diaphragm groove 106A through the first gas passage 102A, so as to reduce the air pressure in the breast pumping cavity 101A of the assembly 10A, so that the breast pumping cavity 101A of the assembly 10A has a higher negative pressure. When the bottom of the elastic diaphragm 20A is deformed towards the direction close to the bottom of the diaphragm groove 106A of the assembly 10A, the gas in the diaphragm groove 106A of the assembly 10A can be driven to enter the breast pumping cavity 101A through the first gas passage 102A, so as to increase the air pressure in the breast pumping cavity 101A of the assembly 10A, so that the breast pumping cavity 101A of the assembly 10A has a lower negative pressure, so that the elastic diaphragm 20A alternately generates high and low negative pressure in the breast pumping cavity 101A of the assembly 10A, so as to realize breast pumping.

[0191] The way to drive the elastic diaphragm 20A to deform can be to change the pressure of the negative pressure of the concave cavity 21A of the elastic diaphragm 20A, when the pressure of the negative pressure of the concave cavity 21A of the elastic diaphragm 20A becomes larger, the bottom of the elastic diaphragm 20A deforms towards the direction away from the bottom of the diaphragm groove 106A of the assembly 10A, at this time, the gas in the milk suction cavity 101A of the assembly 10A can be driven to be discharged to the diaphragm groove 106A through the first gas passage 102A, so as to reduce the air pressure in the milk suction cavity 101A of the assembly 10A and make the milk suction cavity 101A have a higher negative pressure pressure, when the pressure of the negative pressure of the concave cavity 21A of the elastic diaphragm 20A becomes smaller, the bottom of the elastic diaphragm 20A deforms towards the direction close to the bottom of the diaphragm groove 106A of the assembly 10A, at this time, the gas in the diaphragm groove 106A of the assembly 10A can be driven to enter the milk suction cavity 101A through the first gas passage 102A, so as to increase the air pressure in the milk suction cavity 101A of the assembly 10A and make the milk suction cavity 101A have a lower negative pressure pressure. Subsequently, how to change the pressure of the negative pressure of the concave cavity 21A of the elastic diaphragm 20A will be described.

[0192] The milk discharge one-way valve 30A is arranged in the assembly 10A, and the milk discharge one-way valve 30A is used to selectively open and close the milk discharge passage 105A of the assembly 10A, when the milk discharge one-way valve 30A closes the milk discharge passage 105A of the assembly 10A, the milk sucked is temporarily stored in the milk suction cavity 101A of the assembly 10A, when the milk discharge one-way valve 30A opens the milk discharge passage 105A of the assembly 10A, the milk temporarily stored in the milk suction cavity 101A of the assembly 10A is discharged through the milk discharge passage 105A.

[0193] In order to arrange the milk discharge one-way valve 30A in the assembly 10A, referring to Figures 25 and 28, the assembly 10A has a mounting column 11A, the milk discharge passage 105A penetrates through the mounting column 11A, the milk discharge one-way valve 30A has a valve groove 31A, the mounting column 11A of the assembly 10A is inserted into the valve groove 31A of the milk discharge one-way valve 30A, based on the friction force generated between the milk discharge one-way valve 30A and the mounting column 11A of the assembly 10A, the milk discharge one-way valve 30A is arranged in the assembly 10A.

[0194] Referring to Figs. 26-29, the horn cover 40A comprises a main cover body 41A and a deformable small cover ring 42A, the main cover body 41A has a cover cavity 411A and a front opening 412A, a rear opening 413A and an air passage 414A respectively communicated with the cover cavity 411A, and the small cover ring 42A is arranged on the main cover body 41A and located in the cover cavity 411A of the main cover body 41A. The tail of the main cover body 41A is mounted on the assembly 10A through the assembly opening 104A of the assembly 10A, the cover cavity 411A of the main cover body 41A is communicated with the milk suction cavity 101A of the assembly 10A through the rear opening 413A, and the air passage 414A of the horn cover 40A is communicated with the second gas passage 103A of the assembly 10A.

[0195] Preferably, the assembly 10A has a hook groove 110A, and the tail of the main cover body 41A has a hook table 4101A, after the tail of the main cover body 41A is mounted on the assembly 10A through the assembly opening 104A of the assembly 10A, the hook table 4101A of the main cover body 41A hooks into the hook groove 110A of the assembly 10A, so as to reliably mount the main cover body 41A on the assembly 10A.

[0196] In this specific example of the breast pump of the present application shown in Figs. 24-29, the main cover body 41A of the horn cover 40A is deformable, so that the horn cover 40A can be self-attached to the breast. Preferably, the main cover body 41A and the small cover ring 42A of the horn cover 40A are integrally formed, for example, a silicone material can be integrally formed into the horn cover 40A by means of injection molding process. Alternatively, in other examples of the breast pump of the present application, the main cover body 41A and the small cover ring 42A of the horn cover 40A are respectively manufactured, and the small cover ring 42A is detachably mounted on the main cover body 41A, in this way, not only the cleaning of the breast pump 1000A is facilitated, but also the user can replace the small cover ring 42A with appropriate size as needed.

[0197] Referring to FIG. 29, when the user uses the breast pump 1000A, the main cover body 41 A of the horn cover 40A covers a part of the breast, the front opening 412A of the main cover body 41 A is closed by the breast, the small cover ring 42A abuts against the rear part of the areola, a massage cavity 100A is formed between the main cover body 41 A, the small cover ring 42A and the breast, and the air passage 414A of the main cover body 41 A communicates with the massage cavity 100A. After the gas in the massage cavity 100A is discharged through the air passage 414A of the main cover body 41 A, the air pressure in the massage cavity 100A can be reduced, for example, a negative pressure environment can be formed in the massage cavity 100A, so that the horn cover 40A is self-adsorbed on the breast, thereby avoiding the situation that the breast pump 1000A slides downward relative to the breast.

[0198] In the case that the user wears the breast pump 1000A on the breast by means of the underwear, after the gas in the massage cavity 100A is discharged through the air passage 414A of the main cover body 41 A, the air pressure in the massage cavity 100A can be reduced to form a negative pressure environment, and after the gas in the external environment is blown into the massage cavity 100A through the air passage 414A of the main cover body 41 A, the air pressure in the massage cavity 100A can be increased to form a positive pressure environment, so that the massage cavity 100A can alternately generate high and low pressures to drive the small cover ring 42A to deform and be massaged by the small cover ring 42A on the rear part of the areola, thereby stimulating lactation and increasing milk yield. It can be understood that in the case that the user wears the breast pump 1000A on the breast by means of the underwear, the massage cavity 100A can also alternately generate high and low negative pressures to drive the small cover ring 42A to deform and be massaged by the small cover ring 42A on the rear part of the areola, thereby stimulating lactation and increasing milk yield.

[0199] That is, the breast pump of the present application provides a naked suction mode and a massage mode. In the case that the user selects the naked suction mode, the massage cavity 100A needs to continuously form a negative pressure environment to ensure that the horn cover 40A is firmly adsorbed on the breast. In the case that the user selects the massage mode, the massage cavity 100A can alternately generate high and low negative pressures, or alternately generate positive and negative pressures, to drive the small cover ring 42A to deform and be massaged by the small cover ring 42A on the rear part of the areola, thereby stimulating lactation and increasing milk yield.

[0200] It can be understood that the pressure of the negative pressure in the massage cavity 100A is related to the amount of residual air in the massage cavity 100A. In the case that the massage cavity 100A is a negative pressure environment, the less the amount of residual air in the massage cavity 100A, the greater the pressure of the negative pressure in the massage cavity 100A, the more the amount of residual air in the massage cavity 100A, the smaller the pressure of the negative pressure in the massage cavity 100A. In the case that the massage cavity 100A is a positive pressure environment, the less the amount of residual air in the massage cavity 100A, the smaller the pressure of the positive pressure in the massage cavity 100A, the more the amount of residual air in the massage cavity 100A, the greater the pressure of the positive pressure in the massage cavity 100A. Therefore, the pressure in the massage cavity 100A can be controlled by the amount of air discharged and blown in through the second gas passage 103A of the assembly 10A, so that the breast pump 1000A meets the use requirements of different users.

[0201] When the user uses the breast pump, the breast pump 1000A can be self-sucked to the breast in the case that the massage cavity 100A is always a negative pressure environment. During the breast pumping process, the size of the negative pressure in the massage cavity 100A can be undesirably changed due to the leakage of the massage cavity 100A caused by the user's activities or the like. When the massage cavity 100A leaks, the breast pump allows the air in the massage cavity 100A to be discharged again through the second gas passage 103A of the assembly 10A, so that the pressure of the massage cavity 100A is maintained stable, thereby improving the comfort of the user using the breast pump. In some examples of the present application, a sensor can be provided on the host 2000A to detect the pressure in the massage cavity 100A.

[0202] With continued reference to FIGS. 28 and 29, the horn cover 40A further includes a blocking ring 43A extending rearwardly from the small cover ring 42A so that the blocking ring 43A protrudes from the inner wall of the main cover body 41A.

[0203] When the user uses the breast pump device 1000A, the small cover ring 42A and the blocking ring 43A are both against the rear of the areola, and the small cover ring 42A extends from the rear of the areola to the direction of the milk root, and the blocking ring 43A extends from the rear of the areola to the direction of the nipple. During the breast pumping process, when the air pressure in the breast pumping cavity 101A of the assembly 10A decreases, the areola part is pulled to the breast pumping cavity 101A of the assembly 10A. Since the blocking ring 43A is against the rear of the areola, the blocking ring 43A has the effect of blocking the areola from entering the breast pumping cavity 101A of the assembly 10A. At this time, the areola part is squeezed to squeeze out milk and temporarily store it in the breast pumping cavity 101A of the assembly 10A. In this way, it is beneficial to improve the breast pumping efficiency of the breast pump.

[0204] Preferably, the blocking ring 43A is deformable, which makes the blocking ring 43A deformable in the direction of the breast pumping cavity 101A of the assembly 10A while providing resistance, so that the areola part is resisted while being prevented from being hard squeezed, thereby improving comfort. Preferably, the end of the blocking ring 43A extends backwardly and curvedly, so that when the user wears the breast pump device 1000A, the end surface of the blocking ring 43A can be prevented from contacting the nipple, thereby improving the comfort of the user when using the breast pump to pump milk.

[0205] In this specific example of the breast pump of the present application shown in FIGS. 24-29, the main cover body 41A, the small cover ring 42A, and the blocking ring 43A of the horn cover 40A are integrated.

[0206] Further, with continued reference to FIGS. 28 and 29, the main cover body 41A includes a rear section 415A and a front section 416A, the front section 416A extends obliquely forward from the rear section 415A, that is, the rear section 415A and the front section 416A have different extension directions, the main cover body 41A forms a cover groove 417A at the connection between the rear section 415A and the front section 416A, and the air passage 414A of the main cover body 41A is formed at the position of the cover groove 417A of the main cover body 41A. In this way, on the one hand, when the user wears the breast pump device 1000A, the cover groove 417A of the main cover body 41A and the connection relationship between the main cover body 41A and the small cover ring 42A enable the main cover body 41A, the small cover ring 42A, and the breast to form the massage cavity 100A, and on the other hand, the front opening 412A of the main cover body 41A can have a smaller size, so that the front section 416A of the main cover body 41A can provide a gripping force for gripping the rear of the breast, which is beneficial to reliably wear the breast pump device 1000A.

[0207] With reference to FIGS. 24-29, the outer wall of the main cover 41 A has an assembly column 418A, and the air passage 414A of the main cover 41 A penetrates through the assembly column 418A, wherein the assembly piece 10A has an assembly hole 107A, which is in communication with the second gas passage 103A, and the assembly column 418A of the main cover 41 A is inserted into the assembly hole 107A of the assembly piece 10A, by which the horn cover 40A can be reliably installed on the assembly piece 10A, the assembly column 418A of the main cover 41 A and the assembly hole 107A of the assembly piece 10A can ensure the communication between the main cover 41 A and the second gas passage 103A of the assembly piece 10A, and avoid air leakage at the connection position, and the assembly column 418A of the main cover 41 A and the assembly hole 107A of the assembly piece 10A can cooperate with each other to position the installation direction of the horn cover 40A.

[0208] Further, with reference to FIGS. 24-29, the breast pump further comprises a housing 50A, which is installed on the assembly piece 10A, and the elastic diaphragm 20A is clamped between the assembly piece 10A and the housing 50A, so that the elastic diaphragm 20A can be reliably arranged on the assembly piece 10A.

[0209] Preferably, the breast pump forms a milk storage cavity 60A between the housing 50A and the assembly piece 10A, and the milk discharge one-way valve 30A is located in the milk storage cavity 60A, and when the milk discharge one-way valve 30A opens the milk discharge passage 105A of the assembly piece 10A, the milk temporarily stored in the milk suction cavity 101A of the assembly piece 10A is discharged to the milk storage cavity 60A through the milk discharge passage 105A.

[0210] In addition, the shell 50A further has a first air hole 51A and a second air hole 52A, wherein the first air hole 51A is communicated with the concave cavity 21A of the elastic diaphragm 20A, the second air hole 52A is communicated with the second gas passage 103A of the assembly 10A, the main machine 2000A has a first pump body 2001A, a second pump body 2002A and a solenoid valve 2003A, three ends of a three-way pipe 3000A are respectively communicated with the first air hole 51A of the shell 50A, the solenoid valve 2003A and an opening of the first pump body 2001A, two ends of a gas pipe 4000A are respectively communicated with the second air hole 52A of the shell 50A and an opening of the second pump body 2002A. During breast pumping, the first pump body 2001A continuously works, when the solenoid valve 2003A is closed, the pressure of the negative pressure in the concave cavity 21A of the elastic diaphragm 20A becomes larger, the bottom of the elastic diaphragm 20A deforms towards the direction away from the bottom of the diaphragm groove 106A of the assembly 10A, at this time, the gas in the breast pumping cavity 101A of the assembly 10A can be driven to be discharged to the diaphragm groove 106A through the first gas passage 102A, so as to reduce the air pressure in the breast pumping cavity 101A of the assembly 10A, when the solenoid valve 2003A is opened, the pressure of the negative pressure in the concave cavity 21A of the elastic diaphragm 20A becomes smaller, the bottom of the elastic diaphragm 20A deforms towards the direction close to the bottom of the diaphragm groove 106A of the assembly 10A, at this time, the gas in the diaphragm groove 106A of the assembly 10A can be driven to enter the breast pumping cavity 101A through the first gas passage 102A, so as to increase the air pressure in the breast pumping cavity 101A of the assembly 10A, thus the breast pumping cavity 101A of the assembly 10A alternately generates high and low negative pressure, so as to perform breast pumping; when the massage cavity 100A leaks air, the second pump body 2002A works, so as to draw the gas in the massage cavity 100A out through the air channel 414A of the main cover body 41A, the second gas passage 103A of the assembly 10A and the second air hole 52A of the shell 50A, thereby reducing the air pressure in the massage cavity 100A, so as to ensure that the breast pumping device 1000A can be reliably self-adsorbed to the breast.

[0211] Preferably, the elastic diaphragm 20A has a diaphragm hole 22A, and the column of the assembly 10A for defining the second gas passage 103A and the column of the shell 50A for defining the second gas hole 52A are respectively inserted into the diaphragm hole 22A of the elastic diaphragm 20A, so that on the one hand, the elastic diaphragm 20A can be reliably arranged between the assembly 10A and the shell 50A, and on the other hand, the diaphragm hole 22A of the elastic diaphragm 20A can communicate the second gas passage 103A of the assembly 10A and the second gas hole 52A of the shell 50A.

[0212] Fig. 30 shows a variant of the breast pump device 1000A of the above-mentioned preferred embodiment of the present application. Different from the breast pump device 1000A shown in Figs. 24 to 29, in the specific example of the breast pump device 1000A shown in Fig. 30, the air passage 414A of the main cover 41A is formed in the rear section 415A of the main cover 41A. That is, the inner side opening of the air passage 414A of the main cover 41A is directly opposite to the outer wall of the small cover ring 42A. When the user wears the breast pump device 1000A, the massage cavity 100A is formed between the main cover 41A, the small cover ring 42A and the breast, and the first pump body 2001A and the electromagnetic valve 2003A can cooperate with each other to alternately generate high and low negative pressure in the breast pump cavity 101A of the assembly 10A to suck out milk, and the second pump body 2002A can alternately generate high and low pressure in the massage cavity 100A to deform the small cover ring 42A to massage the rear part of the areola by the small cover ring 42A, so as to stimulate lactation and increase milk yield.

[0213] When the user selects the naked suction mode, the horn cover 40A is self-sucked to the breast, and the second pump body 2002A sucks out the gas in the massage cavity 100A through the air passage 414A of the main cover 41A to form a negative pressure environment in the massage cavity 100A, so that the horn cover 40A can be firmly sucked to the breast. Preferably, the breast pump can detect the pressure of the massage cavity 100A in real time through the sensor arranged in the main machine 2000A, and adjust the minimum negative pressure value of the massage cavity 100A according to the pressure state of the massage cavity 100A, so that the breast pump device 1000A can be firmly sucked to the breast.

[0214] In the case that the user selects the massage mode, the user can wear the breast pump 1000A on the breast by means of the underwear. The second pump body 2002A and the other electromagnetic valve 2003A cooperate with each other to make the massage cavity 100A alternately generate high and low negative pressure, so as to drive the small cover ring 42A to deform and massage the back of the areola by the small cover ring 42A. Thus, it is beneficial to stimulate lactation and increase milk yield. That is, the massage cavity 100A is always in a negative pressure environment. Alternatively, the second pump body 2002A can extract the gas in the massage cavity 100A through the gas passage 414A of the main cover body 41A, the second gas passage 103A of the assembly 10A and the second gas hole 52A of the shell 50A, so as to form a negative pressure environment in the massage cavity 100A. The second pump body 2002A can also blow gas into the massage cavity 100A through the second gas hole 52A of the shell 50A, the second gas passage 103A of the assembly 10A and the gas passage 414A of the main cover body 41A, so as to form a positive pressure environment in the massage cavity 100A. Thus, the massage cavity 100A alternately generates positive pressure and negative pressure, so as to drive the small cover ring 42A to deform and massage the back of the areola by the small cover ring 42A. Thus, it is beneficial to stimulate lactation and increase milk yield.

[0215] According to another aspect of the present application, the present application further provides a control method of the breast pump 1000A. The control method comprises the following steps: (a) when the user wears the breast pump 1000A, forming the massage cavity 100A between the main cover body 41A of the horn cover 40A of the breast pump 1000A, the small cover ring 42A installed on the main cover body 41A and the breast; (b) making the breast pump cavity 101A of the breast pump 1000A alternately generate high and low negative pressure to suck out milk; and (c) making the massage cavity 100A alternately generate high and low pressure to drive the small cover ring 42A to deform and massage the back of the areola by the small cover ring 42A. In this way, during the breast pumping process, the breast pump 1000A can stimulate lactation and increase milk yield.

[0216] In one specific example of the control method of the present application, in the step (c), the massage cavity 100A alternately generates high and low negative pressure to drive the small cover ring 42A to deform and massage the back of the areola by the small cover ring 42A, so as to stimulate lactation and increase milk yield.

[0217] In another specific example of the control method of the present application, in the step (c), the massage cavity 100A alternately generates positive pressure and negative pressure to drive the small cover ring 42A to deform and massage the back of the areola by the small cover ring 42A, so as to stimulate lactation and increase milk yield.

[0218] Fig. 31 to Fig. 37 show a breast pump according to another preferred embodiment of the present application, wherein the breast pump comprises at least one breast pumping device 1000B and a main unit 2000B, the breast pumping device 1000B is connected to the main unit 2000B.

[0219] The breast pumping device 1000B comprises an assembling piece 10B, a resilient diaphragm 20B, a milk discharging one-way valve 30B and a horn 40B, wherein the assembling piece 10B has a first gas passage 102B, a second gas passage 103B, an assembling opening 104B, a milk discharging passage 105B and an assembling cavity 108B, the first gas passage 102B, the second gas passage 103B, the assembling opening 104B and the milk discharging passage 105B are communicated with the assembling cavity 108B respectively, the horn 40B comprises a main body 41B and a deformable small ring 42B, the main body 41B has a cavity 411B, a front opening 412B, a rear opening 413B, an air passage 414B and a milk passage 419B, the small ring 42B is arranged on the main body 41B and located in the cavity 411B, the resilient diaphragm 20B is arranged on the tail of the main body 41B for closing the rear opening 413B of the main body 41B, the breast pumping device 1000B forms a breast pumping cavity 101B between the main body 41B and the resilient diaphragm 20B, the tail of the main body 41B is installed in the assembling cavity 108B through the assembling opening 104B of the assembling piece 10B, the breast pumping device 1000B forms a negative pressure cavity 1001B between the resilient diaphragm 20B and the assembling piece 10B, the first gas passage 102B of the assembling piece 10B is communicated with the negative pressure cavity 1001B, the air passage 414B of the main body 41B is communicated with the second gas passage 103B of the assembling piece 10B, the milk passage 419B of the main body 41B is communicated with the milk discharging passage 105B of the assembling piece 10B, the milk discharging one-way valve 30B is arranged on the assembling piece 10B for selectively opening and closing the milk discharging passage 105B of the assembling piece 10B.

[0220] The main unit 2000B has a first pump body 2001B, a second pump body 2002B and a solenoid valve 2003B, three ends of a three-way pipe 3000B are communicated with the first gas passage 102B of the assembling piece 10B, the solenoid valve 2003B and an opening of the first pump body 2001B respectively, two ends of a gas pipe 4000B are communicated with the second gas passage 103B of the assembling piece 10B and an opening of the second pump body 2002B respectively.

[0221] When sucking milk, the breast seals the front opening 412B of the main cover 41B, the small cover ring 42B abuts against the rear of the areola, a massage cavity 100B is formed between the main cover 41B, the small cover ring 42B and the breast, and the air channel 414B of the main cover 41B is in communication with the massage cavity 100B. The first pump body 2001B continuously works, when the electromagnetic valve 2003B is closed, the first pump body 2001B draws the gas in the negative pressure cavity 1001B of the breast pump 1000B through the first gas channel 102B of the assembly piece 10B, the pressure of the negative pressure in the negative pressure cavity 1001B becomes larger, the bottom of the elastic diaphragm 20B deforms towards the direction of the cavity bottom close to the assembly cavity 108B of the assembly piece 10B, at this time, the space of the breast pumping cavity 101B of the breast pump 1000B increases, the pressure of the negative pressure increases, when the electromagnetic valve 2003B is opened, the negative pressure cavity 1001B of the breast pump 1000B inhales air so that the pressure of the negative pressure in the negative pressure cavity 1001B becomes smaller, the bottom of the elastic diaphragm 20B deforms towards the direction of the cavity bottom away from the assembly cavity 108B of the assembly piece 10B, at this time, the space of the breast pumping cavity 101B of the breast pump 1000B decreases, the pressure of the negative pressure decreases, thus the breast pumping cavity 101B of the breast pump 1000B alternately generates high and low negative pressure to achieve breast pumping. The second pump body 2002B can draw the gas in the massage cavity 100B through the air channel 414B of the main cover 41B and the second gas channel 103B of the assembly piece 10B to form a negative pressure environment in the massage cavity 100B, or can blow the gas into the massage cavity 100B through the second gas channel 103B of the assembly piece 10B and the air channel 414B of the main cover 41B to form a positive pressure environment in the massage cavity 100B, thus repeatedly, the massage cavity 100B alternately generates positive pressure and negative pressure to drive the small cover ring 42B to deform and be massaged by the small cover ring 42B at the rear of the areola, thus being beneficial to stimulating lactation and increasing milk yield.

[0222] Preferably, the inner side opening of the air passage 414B of the main cover body 41B is directly opposite to the outer wall of the small cover ring 42B, so that when the user wears the breast pump device 1000B, the massage cavity 100B is formed between the main cover body 41B, the small cover ring 42B and the breast, and the first pump body 2001B and the electromagnetic valve 2003B can cooperate with each other to alternately generate high and low negative pressures in the breast pumping cavity 101B of the breast pump device 1000B to suck out milk, and the second pump body 2002B can alternately generate positive and negative pressures in the massage cavity 100B to deform the small cover ring 42B to massage the back of the areola by the small cover ring 42B, so as to stimulate lactation and increase milk yield, or the second pump body 2002B can alternately generate high and low negative pressures in the massage cavity 100B to deform the small cover ring 42B to massage the back of the areola by the small cover ring 42B, so as to stimulate lactation and increase milk yield.

[0223] In this specific example of the breast pump of the present application shown in FIGS. 31-37, the assembly piece 10B can be an injection molded piece, and the plastic material can be formed into the assembly piece 10B in one piece by means of an injection molding process, wherein the assembly piece 10B has a mounting column 11B, a first pipe column 12B and a second pipe column 13B, the milk discharge passage 105B penetrates through the mounting column 11B, the first gas passage 102B penetrates through the first pipe column 12B, and the second gas passage 103B penetrates through the second pipe column 13B. The milk discharge one-way valve 30B has a valve groove 31B, and the mounting column 11B of the assembly piece 10B is inserted into the valve groove 31B of the milk discharge one-way valve 30B, and the milk discharge one-way valve 30B is arranged on the assembly piece 10B based on the friction force generated between the milk discharge one-way valve 30B and the mounting column 11B of the assembly piece 10B. The first pipe column 12B of the assembly piece 10B is inserted into one end of the three-way pipe 3000B to connect the three-way pipe 3000B to the first gas passage 102B of the assembly piece 10B. The second pipe column 13B of the assembly piece 10B is inserted into one end of the gas pipe 4000B to connect the gas pipe 4000B to the second gas passage 103B of the assembly piece 10B.

[0224] In this specific example of the breast pump of the present application shown in FIGS. 31-37, the main cover 41B and the elastic diaphragm 20B are integrally formed, for example, the main cover 41B and the elastic diaphragm 20B can be integrally formed by injection molding process using silicone material, and the small cover ring 42B is detachably mounted on the main cover 41B, and it is understood that the small cover ring 42B can also be made of silicone material. In other specific examples of the breast pump of the present application, the main cover 41B, the small cover ring 42B and the elastic diaphragm 20B can be integrally formed.

[0225] Further, the main cover 41B has an insertion hole 410B which is in communication with the air passage 414B, and the assembly 10B has an insertion column 14B through which the second gas passage 103B passes, wherein the insertion column 14B of the assembly 10B is inserted into the insertion hole 410B of the main cover 41B, in this way, on the one hand, the air passage 414B of the main cover 41B and the second gas passage 103B of the assembly 10B are in communication and avoid air leakage at the mounting position of the main cover 41B and the assembly 10B, on the other hand, the insertion hole 410B of the main cover 41B and the insertion column 14B of the assembly 10B cooperate with each other, and the mounting direction of the main cover 41B can be positioned.

[0226] Further, the breast pump 1000B includes a feeding bottle 70B which is mounted on the assembly 10B and covers the milk discharge one-way valve 30B, and the milk water discharged from the breast pump 1000B through the milk discharge one-way valve 30B can be collected into the feeding bottle 70B.

[0227] Fig. 38 and Fig. 39 show a variant of the breast pump 1000B of the preferred embodiment, which is different from the breast pump 1000B shown in Fig. 31 to Fig. 37 in that, in this specific example of the breast pump 1000B of the present application shown in Fig. 38 and Fig. 39, the bell cover 40B comprises an anti-sticking part 44B, which is arranged on the outer wall of the small cover ring 42B and extends from the front edge of the small cover ring 42B towards the tail end, and the position of the inner opening of the air passage 414B of the main cover body 41B corresponds to the position of the anti-sticking part 44B. When the gas in the massage cavity 100B is extracted through the air passage 414B of the main cover body 41B and the second gas passage 103B of the assembly 10B to form a negative pressure environment in the massage cavity 100B, the small cover ring 42B deforms towards the main cover body 41B and can make the outer wall of the small cover ring 42B contact the inner wall of the main cover body 41B. By arranging the anti-sticking part 44B on the outer wall of the small cover ring 42B, the bell cover 40B can avoid the outer wall of the small cover ring 42B and the inner wall of the main cover body 41B from sticking together, thereby ensuring that the gas in the massage cavity 100B can be extracted through the air passage 414B of the main cover body 41B and the second gas passage 103B of the assembly 10B at any time.

[0228] In this specific example of the breast pump of the present application shown in Fig. 38 and Fig. 39, the anti-sticking part 44B is a convex rib which is protrudingly arranged on the outer wall of the small cover ring 42B. Alternatively, in other specific examples of the breast pump of the present application, the anti-sticking part 44B can be a groove.

[0229] Fig. 40 and Fig. 41 show a variant of the breast pump 1000B of the preferred embodiment described above, which is different from the breast pump 1000B shown in Fig. 38 and Fig. 39 in that, in this specific example of the breast pump 1000B of the present application shown in Fig. 40 and Fig. 41, the anti-sticking part 44B is arranged on the inner wall of the main cover 41B, and extends from the inner side opening of the air passage 414B towards the edge of the main cover 41B. When the gas in the massage cavity 100B is extracted through the air passage 414B of the main cover 41B and the second gas passage 103B of the assembly 10B to form a negative pressure environment in the massage cavity 100B, the small cover ring 42B deforms towards the main cover 41B and can make the outer wall of the small cover ring 42B contact the inner wall of the main cover 41B. By arranging the anti-sticking part 44B on the inner wall of the main cover 41B, the horn cover 40B can avoid the outer wall of the small cover ring 42B and the inner wall of the main cover 41B from sticking together, thereby ensuring that the gas in the massage cavity 100B can be extracted through the air passage 414B of the main cover 41B and the second gas passage 103B of the assembly 10B at any time.

[0230] In this specific example of the breast pump of the present application shown in Fig. 40 and Fig. 41, the anti-sticking part 44B is a groove which is recessed on the inner wall of the main cover 41B. Alternatively, in other specific examples of the breast pump of the present application, the anti-sticking part 44B can be a convex rib.

[0231] Those skilled in the art should understand that the embodiments of the present application described above and shown in the drawings are only examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The function and structural principles of the present application have been demonstrated and described in the embodiments, and the embodiments of the present application can be modified or changed in any way without departing from the principles.

Claims

1. Breast milk suction device, characterized in that comprising: an assembly piece, wherein the assembly piece has a breast pumping cavity and a first gas passage, a second gas passage, an assembly opening and a milk discharge passage respectively communicated with the breast pumping cavity; a resilient diaphragm, wherein the resilient diaphragm is arranged on the assembly piece for allowing gas in the breast pumping cavity of the assembly piece to be discharged through the first gas passage; a horn cover, wherein the horn cover has a lateral hole, a rear portion of the horn cover is mounted on the assembly piece through the assembly opening, and the lateral hole of the horn cover is communicated with the second gas passage of the assembly piece; and a milk discharge one-way valve, wherein the milk discharge one-way valve is mounted on the assembly piece for opening and closing the milk discharge passage of the assembly piece.

2. The breast pump device according to claim 1, wherein the breast pump device comprises a housing mounted on the assembly piece, the breast pump forms a milk storage cavity between the assembly piece and the housing, and the milk discharge one-way valve is located in the milk storage cavity.

3. The breast pump device according to claim 1, wherein the breast pump device comprises a milk bottle mounted on the assembly piece, and the milk bottle covers the milk discharge one-way valve.

4. The breast pump device according to any one of claims 1 to 3, wherein the horn cover comprises a main cover body and a small cover ring, the small cover ring extends forward from and inward of an inner wall of the main cover body, and the lateral hole of the horn cover is formed in the main cover body and located outside the small cover ring.

5. The breast pump device according to claim 4, wherein the horn cover comprises a blocking ring extending inward and rearward from the inner wall of the main cover body.

6. The breast pump device according to claim 5, wherein a cover ring root of the small cover ring for connecting to the main cover body and a blocking ring root of the blocking ring for connecting to the main cover body are integrated.

7. The breast pump device according to claim 4, wherein the small cover ring is detachably mounted on the main cover body.

8. The breast pump device according to claim 2, wherein the housing has a first gas hole and a second gas hole, the resilient diaphragm is clamped between the assembly piece and the housing, the first gas hole of the housing is communicated with a concave cavity of the resilient diaphragm, and the second gas hole of the housing is communicated with the second gas passage of the assembly piece.

9. The breast pump device according to claim 8, wherein the resilient diaphragm has a diaphragm hole, a column of the assembly piece for forming the second gas passage and a column of the housing for forming the second gas hole are respectively inserted into the diaphragm hole of the resilient diaphragm.

10. The breast pump device according to claim 4, wherein the breast pump device comprises an anti-sticking part arranged on at least one of the main cover body and the small cover ring for preventing the small cover ring from blocking the lateral hole of the horn cover.

11. Breast milk suction device, characterized in that comprising: an assembly piece, wherein the assembly piece has a breast pumping cavity and a first gas passage, a second gas passage, an assembly opening and a milk discharge passage respectively communicated with the breast pumping cavity; An elastic diaphragm, wherein the elastic diaphragm is arranged in the assembly for allowing gas in the breast pumping cavity of the assembly to be discharged through the first gas passage; A horn cover, wherein the horn cover comprises an assembly ring and a horn-shaped peristaltic ring, a middle portion of the peristaltic ring is arranged in a front portion of the assembly ring, a front portion of the peristaltic portion forms a small cover ring for abutting against a rear side of an areola portion, an opening of the second gas passage of the assembly is located outside the small cover ring; and A milk discharge one-way valve, wherein the milk discharge one-way valve is mounted in the assembly for opening and closing the milk discharge passage of the assembly.

12. The breast pump device of claim 11, wherein a rear portion of the peristaltic ring forms a blocking ring.

13. The breast pump device of claim 11 or 12, wherein the breast pump device comprises a housing, the housing is mounted in the assembly, the breast pump forms a milk storage cavity between the assembly and the housing, the milk discharge one-way valve is located in the milk storage cavity.

14. Breast milk suction device, characterized in that comprising: an assembly, wherein the assembly comprises a barrel and a horn, the barrel has a barrel cavity and a first gas passage, a second gas passage and a barrel milk hole respectively communicating with the barrel cavity, the horn extends outward from a front side of the barrel; a milk discharge one-way valve, wherein the milk discharge one-way valve is mounted in the barrel for opening and closing the barrel milk hole of the barrel; and a horn cover, wherein the horn cover comprises a main cover and a deformable portion, the deformable portion is arranged in a tail portion of the main cover to form a breast pumping cavity between the main cover and the deformable portion, the main cover has a cover milk hole and a lateral hole, the cover milk hole and the lateral hole communicate with the breast pumping cavity, wherein the tail portion of the main cover is mounted in the barrel cavity of the barrel, the cover milk hole of the main cover and the barrel milk hole of the barrel correspond and communicate, the breast pump forms a negative pressure cavity between the deformable portion and the barrel, the first gas passage of the barrel communicates with the negative pressure cavity, the second gas passage of the barrel communicates with the lateral hole of the main cover.

15. The breast pump device of claim 14, wherein the breast pump device comprises a housing, the housing has a first gas hole and a second gas hole, a periphery of the housing is sealingly mounted on a periphery of the horn, the breast pump forms a milk storage cavity between the assembly and the housing, the milk discharge one-way valve is located in the milk storage cavity, the first gas hole of the housing communicates with the first gas passage of the barrel, the second gas hole of the housing communicates with the second gas passage of the barrel.

16. The breast pump device of claim 14, wherein the breast pump device comprises a milk bottle, the milk bottle is mounted in the assembly, the milk bottle covers the milk discharge one-way valve.

17. The breast pump device of any one of claims 14 to 16, wherein the horn cover comprises a small cover ring, the small cover ring is arranged in the main cover, and the small cover ring extends towards the main cover.

18. A breast pump, characterized in that comprising: a host; and The breast pumping device of any one of claims 1 to 10, wherein the first gas passage and the second gas passage of the assembly are respectively communicated with the main machine.

19. A bell for a breast pump, characterized in that The horn cover comprises a main cover body and side perforations extending through opposite sides of the main cover body.

20. The horn cover of claim 19, wherein the horn cover comprises a deformable portion arranged at a tail end of the main cover body to form a breast pumping cavity between the main cover body and the deformable portion, and a cover breastmilk hole communicated with the breast pumping cavity.

21. The horn cover of claim 19 or 20, wherein the horn cover comprises a small cover ring extending inwardly and forwardly from an inner wall of the main cover body, and the side perforations of the horn cover are formed in the main cover body and located outside the small cover ring.

22. The horn cover of claim 21, wherein the horn cover comprises a blocking ring extending inwardly and rearwardly from the inner wall of the main cover body.

23. A control method of a breast pump, characterized by, The control method comprises the following steps: (a) forming a massage cavity between a main cover body of a horn cover of a breast pumping device, a small cover ring mounted on the main cover body, and a breast when a user wears the breast pumping device; (b) alternately generating high and low negative pressures in a breast pumping cavity of the breast pumping device to pump out breastmilk; and (c) alternately generating high and low pressures in the massage cavity to drive the small cover ring to deform and massage a rear part of a breast areola by the small cover ring.

24. The control method of claim 23, wherein in the step (c), alternately generating high and low negative pressures in the massage cavity to drive the small cover ring to deform and massage a rear part of a breast areola by the small cover ring.

25. The control method of claim 23, wherein in the step (c), alternately generating positive and negative pressures in the massage cavity to drive the small cover ring to deform and massage a rear part of a breast areola by the small cover ring.

26. The control method of claim 24, wherein in the step (a), the horn cover is attached to the breast, in the step (c), the pressure of the massage cavity is detected in real time, and the minimum negative pressure value of the massage cavity is adjusted according to the pressure state of the massage cavity.

27. The control method of claim 25, wherein in the above method, air is alternately blown into the massage cavity and air in the massage cavity is alternately pumped out through an air passage of the main cover body to alternately generate positive and negative pressures in the massage cavity.

28. A breast pump, characterized in that comprises: a flexible diaphragm; a breastmilk discharge one-way valve; a horn cover, wherein the horn cover comprises a main cover body and a deformable small cover ring, the main cover body has a cover cavity and a front opening, a rear opening, and an air passage communicated with the cover cavity, respectively, and the small cover ring is arranged in the main cover body and located in the cover cavity; and and an assembly, wherein the assembly has a milk suction cavity and a first gas passage, a second gas passage, an assembly opening and a milk discharge passage respectively communicated with the milk suction cavity, wherein the elastic diaphragm is arranged in the assembly for allowing gas in the milk suction cavity of the assembly to be discharged through the first gas passage so as to enable the milk suction cavity to alternately generate high and low negative pressure, wherein the milk discharge one-way valve is arranged in the assembly for selectively opening and closing the milk discharge passage of the assembly, wherein the tail portion of the main cover is mounted to the assembly through the assembly opening of the assembly, and the gas passage of the main cover and the second gas passage of the assembly are communicated.

29. The breast pump according to claim 28, wherein the main cover is deformable so as to enable the main cover to be self-adhered to a breast.

30. The breast pump according to claim 28, wherein the inner side opening of the gas passage of the main cover is directly opposite to the outer wall of the small cover ring.

31. The breast pump according to claim 30, wherein the horn cover comprises an anti-sticking portion arranged on the inner wall of the main cover and extending from the inner side opening of the gas passage to the edge of the main cover.

32. The breast pump according to claim 30, wherein the horn cover comprises an anti-sticking portion arranged on the outer wall of the small cover ring and extending from the front side edge of the small cover ring to the tail portion, and the position of the inner side opening of the gas passage of the main cover corresponds to the position of the anti-sticking portion.

33. The breast pump according to claim 28, wherein the breast pump comprises a housing mounted to the assembly, and a milk storage cavity is formed between the housing and the assembly, and the milk discharge one-way valve is located in the milk storage cavity.

34. A breast pump, characterized in that comprising: an elastic diaphragm; a milk discharge one-way valve; a horn cover, wherein the horn cover comprises a main cover and a deformable small cover ring, the main cover has a cover cavity and a front opening, a rear opening, a gas passage and a milk passage respectively communicated with the cover cavity, and the small cover ring is arranged in the cover cavity of the main cover, and an assembly, wherein the assembly has an assembly cavity and a first gas passage, a second gas passage, an assembly opening and a milk discharge passage respectively communicated with the assembly cavity, wherein the tail portion of the main cover is mounted to the assembly cavity through the assembly opening of the assembly, a negative pressure cavity is formed between the elastic diaphragm and the assembly, the first gas passage is communicated with the negative pressure cavity, the gas passage and the milk passage of the main cover are respectively communicated with the second gas passage and the milk discharge passage of the assembly, and the milk discharge one-way valve is arranged in the assembly for selectively opening and closing the milk discharge passage of the assembly.

35. The breast pump of claim 34, wherein the inner opening of the air passage of the main housing is directly opposite to the outer wall of the small housing ring.

36. The breast pump of claim 35, wherein the horn housing comprises a non-stick portion disposed on the inner wall of the main housing, and the non-stick portion extends from the inner opening of the air passage to the edge of the main housing.

37. The breast pump of claim 35, wherein the horn housing comprises a non-stick portion disposed on the outer wall of the small housing ring, and the non-stick portion extends from the front edge of the small housing ring to the tail portion, the inner opening of the air passage of the main housing corresponds to the position of the non-stick portion.

38. The breast pump of claim 34, wherein the breast pump comprises a milk bottle mounted to the assembly and covering the milk discharge one-way valve.

39. A breast pump characterized by comprising: a main unit; and the breast pump of any one of claims 28 to 33, wherein the main unit is configured to generate air flow through the first gas passage and the second gas passage of the assembly, respectively.

40. A breast pump, characterized in that comprising: a main unit; and the breast pump of any one of claims 34 to 38, wherein the main unit is configured to generate air flow through the first gas passage and the second gas passage of the assembly, respectively.

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