Breast pump, breast pumping device and horn cover of breast pumping device

Abstract

The utility model discloses a breast pump, breast pumping device and horn cover, wherein the breast pumping device comprises a device body and the horn cover arranged on the device body, and the device body is provided with a breast pumping cavity, a milk containing cavity and a milk discharging channel capable of communicating the breast pumping cavity with the milk containing cavity. Wherein the horn cover is arranged on the device body, the horn cover comprises an external first extension section and a turnover external second extension section, and the external second extension section extends outwards from the side, away from the device body, of the external first extension section. And the external first extension section and the external second extension section have different extension trends.

Description

TECHNICAL FIELD

[0001] The utility model relates to a breast pump, especially to a breast pump, a breast pump device and a horn cover thereof. BACKGROUND

[0002] The existing wearable breast pump is integrated, for example, in the Chinese utility model patent with the authorization announcement number CN221181191U, which discloses a wearable breast pump, including horn cover, milk storage bowl and negative pressure generating assembly, the milk storage bowl is provided with the connecting port on the side wall opposite to the bowl mouth, the horn mouth edge of the horn cover is detachably airtight with the bowl mouth of the milk storage bowl, the back of the horn cover is airtight with the inner wall of the connecting port, the inner wall of the connecting port and the back of the horn cover are fixedly provided with the butterfly diaphragm between; The outer wall of the horn cover is provided with a liquid outlet, the nipple containing channel in the horn cover is opposite to the butterfly diaphragm and communicates with the liquid outlet; The negative pressure generating assembly is detachably arranged outside the milk storage bowl, the air suction end of the negative pressure generating assembly is airtight with the inner wall of the connecting port, the butterfly diaphragm and the air suction end of the negative pressure generating assembly form a negative pressure cavity, the negative pressure cavity is formed by the negative pressure generating assembly to drive the butterfly diaphragm to deform, and then the negative pressure is transmitted to the nipple containing channel to suck the milk and store it in the milk storage bowl through the liquid outlet. In the wearable breast pump of the prior art, although the negative pressure generating assembly is detachably arranged outside the milk storage bowl, during breast pumping, the wearable breast pump of the prior art requires that the negative pressure generating assembly must be installed outside the milk storage bowl. Only in this way, the negative pressure generating assembly can form negative pressure in the negative pressure cavity to drive the butterfly diaphragm to deform. The wearable breast pump of the prior art has many defects. First, the horn cover can only ensure the sealing of the milk storage bowl, and it cannot be directly fixed on the breast, but needs to be attached to the outside of the breast with the help of a bra. In other words, without the help of a bra, the user cannot use the wearable breast pump to pump milk. Secondly, since the negative pressure generating assembly needs to be installed outside the milk storage bowl during breast pumping, it leads to a larger weight and size of the wearable breast pump, which easily causes a larger burden on the breast, and during breast pumping, the larger weight easily causes the wearable breast pump to slide down relative to the breast, resulting in misalignment of the wearable breast pump relative to the breast. Once misalignment occurs, it not only easily leads to milk leakage, but also easily causes damage to the breast. SUMMARY

[0003] One object of the utility model is to provide a breast pump, a breast pump device and a horn cover thereof, wherein the breast pump device can be worn by the user, that is, without the help of a bra, the breast pump device can be worn to realize "bare pumping".

[0004] The utility model discloses a purpose lies in providing a kind of breast pump, breast pump device and its horn cover, wherein the horn cover of the breast pump device can "catch" breast, so that the breast pump device can be worn.

[0005] The utility model discloses a purpose lies in providing a kind of breast pump, breast pump device and its horn cover, wherein the horn cover of the breast pump device and device body form the breast pumping cavity of negative pressure environment between, cooperate the holding force provided by the horn cover, so that the breast pump device can be reliably worn by user.

[0006] The utility model discloses a purpose lies in providing a kind of breast pump, breast pump device and its horn cover, wherein the gravity center of the breast pump device is closer to body, so that the breast pump device can reduce the requirement of holding force of the horn cover, and smaller holding force can allow user to wear the breast pump device, to avoid the oppression to breast in breast pumping process, to be favorable to breast health.

[0007] The utility model discloses a purpose lies in providing a kind of breast pump, breast pump device and its horn cover, wherein the breast pump device does not need to be set any electronic components, but is connected through a trachea and breast pump host, so that the breast pump device can have lighter weight and smaller size, not only can the gravity center of the breast pump device be closer to body and further reduce the requirement of holding force of the horn cover, but also lighter weight can further reduce the burden to breast.

[0008] The utility model discloses a purpose lies in providing a kind of breast pump, breast pump device and its horn cover, wherein the horn cover and breast can form negative pressure space between, so that the horn cover can not only provide holding force, but also provide suction force, so that the breast pump device can be reliably worn.

[0009] According to an aspect of the utility model, the utility model provides a kind of breast pump device, it includes:

[0010] Device body, wherein the device body has breast pumping cavity, milk storage cavity and the discharge channel that can communicate the breast pumping cavity and the milk storage cavity;And

[0011] Horn cover, wherein the horn cover is set in the device body, and the horn cover includes external first extension section and reversible external second extension section, the external second extension section extends outward from the side of the external first extension section away from the device body, and the external first extension section and the external second extension section have different extension trends.

[0012] According to one embodiment of the utility model, the inner wall of the first outer extension section and the inner wall of the second outer extension section are both inclined surfaces, and the included angle alpha between the inner wall of the first outer extension section and the central axis of the loudspeaker cover is greater than the included angle beta between the inner wall of the second outer extension section and the central axis of the loudspeaker cover.

[0013] According to one embodiment of the utility model, the inner wall of the first outer extension section and the inner wall of the second outer extension section are both concave arc surfaces, and the included angle alpha between the connecting line between the opposite sides of the inner wall of the first outer extension section and the central axis of the loudspeaker cover is greater than the included angle beta between the connecting line between the opposite sides of the inner wall of the second outer extension section and the central axis of the loudspeaker cover.

[0014] According to one embodiment of the utility model, the inner wall of the first outer extension section is an inclined surface, the inner wall of the second outer extension section is a concave arc surface, and the included angle alpha between the inner wall of the first outer extension section and the central axis of the loudspeaker cover is greater than the included angle beta between the connecting line between the opposite sides of the inner wall of the second outer extension section and the central axis of the loudspeaker cover.

[0015] According to one embodiment of the utility model, the inner wall of the first outer extension section is a concave arc surface, the inner wall of the second outer extension section is an inclined surface, and the included angle alpha between the connecting line between the opposite sides of the inner wall of the first outer extension section and the central axis of the loudspeaker cover is greater than the included angle beta between the inner wall of the second outer extension section and the central axis of the loudspeaker cover.

[0016] According to one embodiment of the utility model, the material of the second outer extension section is the same as that of the first outer extension section.

[0017] According to one embodiment of the utility model, the material of the second outer extension section is different from that of the first outer extension section.

[0018] According to one embodiment of the utility model, a gap is formed between the first outer extension section and the device body.

[0019] According to one embodiment of the utility model, the loudspeaker cover comprises an inner extension section, which extends outward from the side of the first outer extension section adjacent to the device body, wherein the inner extension section is detachably mounted on the device body, so that the loudspeaker cover is arranged on the device body when the inner extension section is mounted on the device body.

[0020] According to one embodiment of the utility model, the loudspeaker cover comprises a contact portion, which is formed at the connecting position of the first outer extension section and the inner extension section and used for contacting the areola.

[0021] According to one embodiment of the present application, the loudspeaker cover comprises a contact portion, which is installed on the inner extension section and used for contacting the areola region.

[0022] According to one embodiment of the present application, at least a part of the contact portion of the loudspeaker cover is surrounded by the device body.

[0023] According to one embodiment of the present application, the device body comprises a negative pressure forming unit, a one-way valve and a feeding bottle, the negative pressure forming unit has a negative pressure cavity and a gas exchange passage connected to the negative pressure cavity, the milk suction cavity and the milk discharge passage are formed in the negative pressure forming unit, the gas pressure state of the negative pressure cavity is positively correlated with the gas pressure state of the milk suction cavity, the milk storage cavity is formed in the feeding bottle, the one-way valve and the feeding bottle are both installed on the negative pressure forming unit, and the feeding bottle covers the one-way valve, the one-way valve is used for controlling the communication state of the milk discharge passage of the device body.

[0024] According to one embodiment of the present application, the negative pressure forming unit comprises a support shell and a negative pressure forming portion, the negative pressure forming portion is installed on the support shell, the negative pressure cavity is formed between the support shell and the negative pressure forming portion, the gas exchange passage is arranged on the support shell, the milk suction cavity and the milk discharge passage are arranged on the negative pressure forming portion, and the one-way valve and the feeding bottle are respectively installed on the negative pressure forming portion, wherein at least a part of the negative pressure forming portion is deformable, so that the gas pressure state of the negative pressure cavity is positively correlated with the gas pressure state of the milk suction cavity.

[0025] According to one embodiment of the present application, the support shell comprises a shell body and a loudspeaker body integrally extended outward from one end of the shell body, the shell body has a mounting cavity and a mounting opening connected to the mounting cavity, the negative pressure forming portion comprises a deformation portion and a skeleton portion, the milk suction cavity and the milk discharge passage are formed in the deformation portion, and the skeleton portion is combined with the combination end of the deformation portion, wherein the skeleton portion of the negative pressure forming portion is installed on the mounting opening of the shell body, the deformation portion extends to the mounting cavity through the mounting opening, the negative pressure cavity is formed between the deformation portion and the shell body, so that the deformation portion positively correlates the gas pressure state of the negative pressure cavity with the gas pressure state of the milk suction cavity through deformation.

[0026] According to another aspect of the present application, the present application further provides a breast pump, which comprises a breast pump host, a breast pumping device and a gas pipe connecting the breast pump host and the breast pumping device, wherein the breast pumping device comprises:

[0027] A device body, wherein the device body has a milk suction cavity, a milk storage cavity, and a milk discharge channel capable of communicating the milk suction cavity and the milk storage cavity; and

[0028] A horn cover, wherein the horn cover is arranged on the device body, and the horn cover comprises an external first extending section and a reversible external second extending section, the external second extending section extends outward from a side of the external first extending section away from the device body, and the external first extending section and the external second extending section have different extending tendencies.

[0029] According to another aspect of the present application, the present application further provides a horn cover, which comprises:

[0030] An internal extending section;

[0031] An external first extending section; and

[0032] A reversible external second extending section, wherein the internal extending section and the external second extending section respectively extend outward from opposite sides of the external first extending section, and the external first extending section and the external second extending section have different extending tendencies.

[0033] According to one embodiment of the present application, the inner wall of the external first extending section and the inner wall of the external second extending section are both inclined surfaces, an included angle α formed between the inner wall of the external first extending section and the central axis of the horn cover is greater than an included angle β between the inner wall of the external second extending section and the central axis of the horn cover; or, the inner wall of the external first extending section and the inner wall of the external second extending section are both concave arc surfaces, an included angle α formed between a connecting line between opposite sides of the inner wall of the external first extending section and the central axis of the horn cover is greater than an included angle β between a connecting line between opposite sides of the inner wall of the external second extending section and the central axis of the horn cover; or, the inner wall of the external first extending section is an inclined surface, the inner wall of the external second extending section is a concave arc surface, an included angle α formed between the inner wall of the external first extending section and the central axis of the horn cover is greater than an included angle β between a connecting line between opposite sides of the inner wall of the external second extending section and the central axis of the horn cover; or, the inner wall of the external first extending section is a concave arc surface, the inner wall of the external second extending section is an inclined surface, an included angle α formed between a connecting line between opposite sides of the inner wall of the external first extending section and the central axis of the horn cover is greater than an included angle β between the inner wall of the external second extending section and the central axis of the horn cover.

[0034] According to one embodiment of the present application, the horn cover is integrally made of silica gel material.

[0035] According to one embodiment of the present application, the loudspeaker cover comprises a contact portion, which is formed at the connection position of the outer first extension section and the inner extension section or is installed on the inner extension section, and is used to contact the areola region.

[0036] According to another aspect of the present application, the present application further provides a wearing method of a breast pump, wherein the wearing method comprises the following steps:

[0037] (a) turning the outer second extension section of the loudspeaker cover towards the direction of the device body; and

[0038] (b) after a part of the breast is surrounded by the outer first extension section of the loudspeaker cover, restoring the outer second extension section to allow at least a part of the outer second extension section to be attached to the breast, wherein the outer second extension section extends outward from the side of the outer first extension section which is away from the device body, and the outer first extension section and the outer second extension section have different extension tendencies.

[0039] According to one embodiment of the present application, in the step (b), the contact portion of the loudspeaker cover is allowed to contact the areola region. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a three-dimensional schematic view of a breast pump according to a preferred embodiment of the present application.

[0041] Figure 2 is a schematic view of the use state of the breast pump according to the above preferred embodiment of the present application.

[0042] Figure 3 is a three-dimensional schematic view of a breast pump device of the breast pump according to the above preferred embodiment of the present application from one perspective.

[0043] Figure 4 is a three-dimensional schematic view of the breast pump device of the breast pump according to the above preferred embodiment of the present application from another perspective.

[0044] Figure 5 is an exploded schematic view of the breast pump device of the breast pump according to the above preferred embodiment of the present application from one perspective.

[0045] Figure 6 is an exploded schematic view of the breast pump device of the breast pump according to the above preferred embodiment of the present application from another perspective.

[0046] Figure 7 is a cross-sectional schematic view of the breast pump device of the breast pump according to the above preferred embodiment of the present application from a three-dimensional perspective.

[0047] Figure 8 is a sectional view of a planar perspective of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0048] Figure 9 is Figure 8 is a partial position enlarged schematic view.

[0049] Figure 10 is another sectional view of a planar perspective of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0050] Figure 11 is Figure 10 is a partial position enlarged schematic view.

[0051] Figure 12 is an assembly process schematic view of a sectional perspective of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0052] Figure 13 is an assembly process schematic view of another sectional perspective of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0053] Figure 14 is a sectional view of a variant example of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0054] Figure 15 is a sectional view of another variant example of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0055] Figure 16 is a perspective view of another variant example of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0056] Figure 17 is a perspective view of another perspective of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0057] Figure 18 is a sectional view of a perspective of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0058] Figure 19 is a sectional view of a planar perspective of the breast pump device of the breast pump according to the above preferred embodiment of the present utility model.

[0059] Figure 20is a perspective view of the breast pump device of the breast pump according to the preferred embodiment of the present utility model.

[0060] Figure 21 is another perspective view of the breast pump device of the breast pump according to the preferred embodiment of the present utility model. DETAILED DESCRIPTION

[0061] Before any embodiments of the present utility model are explained in detail, it is to be understood that the present utility model 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 present utility model 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.

[0062] Also, in the disclosure of the present utility model, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "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 only for the convenience of describing the present utility model 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 utility model; 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.

[0063] Reference is made to the accompanying drawings that form a part of this description Figures 1 to 13, a breast pump according to a preferred embodiment of the present utility model will be disclosed and described in the following description, the breast pump comprises at least one breast pump device 100, a breast pump main machine 200 and at least one air pipe 300, opposite ends of the air pipe 300 are connected to the breast pump device 100 and the breast pump main machine 200 respectively, wherein the breast pump device 100 can be worn in a way of being adsorbed on a breast, and the breast pump device 100 can help a user to pump milk when the breast pump main machine 200 works. In the breast pump of the present utility model, the breast pump allows the breast pump device 100 to be worn in a way of being adsorbed on a breast, that is, the breast pump device 100 can be worn in a way of being adsorbed on a breast without any assistance, for example, without wearing a bra. It can be understood that the user can also wear a bra after the breast pump device 100 is worn in a way of being adsorbed on a breast.

[0064] Reference is made to the accompanying drawings Figures 2 to 13 The breast pump device 100 further comprises a device body 10 and a horn cover 20 arranged on the device body 10, wherein the device body 10 has a breast pumping cavity 101, a milk storage cavity 102 and a milk discharging channel 103 capable of communicating the breast pumping cavity 101 and the milk storage cavity 102, and the horn cover 20 is arranged on the device body 10 and comprises an external first extension section 21 and a reversible external second extension section 22, the external second extension section 22 extends outward from a side of the external first extension section 21 away from the device body 10, and the external first extension section 21 and the external second extension section 22 have different extension tendencies.

[0065] The horn cover 20 is used to help the user to wear the breast pump device 100. After the user wears the breast pump device 100 on a breast through the horn cover 20, as the air pressure in the breast pumping cavity 101 of the device body 10 gradually decreases, on the one hand, the milk discharging channel 103 of the device body 10 is in a closed state for preventing the breast pumping cavity 101 and the milk storage cavity 102 of the device body 10 from communicating, and on the other hand, milk is discharged from the breast and temporarily stored in the breast pumping cavity 101 of the device body 10. When the air pressure in the breast pumping cavity 101 of the device body 10 increases, the milk discharging channel 103 of the device body 10 is in an open state for allowing the breast pumping cavity 101 and the milk storage cavity 102 of the device body 10 to communicate, at this time, the milk temporarily stored in the breast pumping cavity 101 of the device body 10 enters the milk storage cavity 102 through the milk discharging channel 103 of the device body 10. In this way, the user can use the breast pump of the present utility model to pump milk.

[0066] For example, in the accompanying drawingsFigures 1 to 13 In the specific example of the breast pump of the utility model shown, the inner wall of the outer first extension section 21 and the inner wall of the outer second extension section 22 of the horn cover 20 are both inclined surfaces, the included angle α formed between the inner wall of the outer first extension section 21 and the central axis 201 of the horn cover 20 is greater than the included angle β between the inner wall of the outer second extension section 22 and the central axis 201 of the horn cover 20, so that the outer first extension section 21 and the outer second extension section 22 have different extension tendencies. In this way, on the one hand, when the user wears the breast pump 100 through the horn cover 20, the outer second extension section 22 of the horn cover 20 can "grab" the breast, that is, the outer second extension section 22 provides a gripping force to allow the breast pump 100 to be reliably worn, on the other hand, the center of gravity of the breast pump 100 can be closer to the body, so that the breast pump 100 can reduce the requirement for the gripping force of the outer second extension section 22 of the horn cover 20, not only can make the breast pump 100 be reliably worn to achieve "bare pumping", but also avoid causing compression to the breast during the breast pumping process, thereby being beneficial to the health of the breast.

[0067] Optionally, in the attached Figure 14 In the example of the breast pump of the utility model shown, the inner wall of the outer first extension section 21 and the inner wall of the outer second extension section 22 of the horn cover 20 are both concave arc surfaces, the included angle α formed between the first connecting line 202 between the opposite sides of the inner wall of the outer first extension section 21 and the central axis 201 of the horn cover 20 is greater than the included angle β between the second connecting line 203 between the opposite sides of the inner wall of the outer second extension section 22 and the central axis 201 of the horn cover 20, so that the outer first extension section 21 and the outer second extension section 22 have different extension tendencies.

[0068] Optionally, in other examples of the breast pump of the present application, the inner wall of the outer first extension section 21 of the horn cover 20 is a slope, the inner wall of the outer second extension section 22 is a concave arc surface, the included angle α between the inner wall of the outer first extension section 21 and the central axis 201 of the horn cover 20 is greater than the included angle β between the second connecting line 203 between the opposite sides of the inner wall of the outer second extension section 22 and the central axis 201 of the horn cover 20, so that the outer first extension section 21 and the outer second extension section 22 have different extension trends. Alternatively, the inner wall of the outer first extension section 21 is a concave arc surface, the inner wall of the outer second extension section 22 is a slope, the included angle α between the first connecting line 202 between the opposite sides of the inner wall of the outer first extension section 21 and the central axis 201 of the horn cover 20 is greater than the included angle β between the inner wall of the outer second extension section 22 and the central axis 201 of the horn cover 20, so that the outer first extension section 21 and the outer second extension section 22 have different extension trends.

[0069] With reference to the accompanying drawings Figures 1 to 13 In this specific example of the breast pump of the present application, the outer first extension section 21 and the outer second extension section 22 of the horn cover 20 can be made of the same material, for example, silica gel material can be used to make the outer first extension section 21 and the outer second extension section 22, so that when the user needs to wear the breast pump 100, the outer second extension section 22 of the horn cover 20 can be turned over. Alternatively, in other examples of the breast pump of the present application, the outer first extension section 21 and the outer second extension section 22 of the horn cover 20 can be made of different materials, for example, plastic material can be used to make the outer first extension section 21, and silica gel material can be used to make the outer second extension section 22, so that when the user needs to wear the breast pump 100, the outer second extension section 22 of the horn cover 20 can be turned over.

[0070] With reference to the accompanying drawings Figures 7 to 10 The outer first extension section 21 of the horn cover 20 has a gap between the device body 10, so that after the user wears the breast pump 100, the gravity of the device body 10 will cause the outer first extension section 21 to deform, at this time the position of the outer second extension section 22 relative to the breast remains unchanged, so that it will not affect the holding force of the outer second extension section 22 on the breast, which is beneficial to ensure that the breast pump 100 is reliably worn.

[0071] With reference to the accompanying drawings Figures 1 to 13The device body 10 further comprises a negative pressure forming unit 11, a one-way valve 12 and a milk bottle 13, wherein the negative pressure forming unit 11 has a negative pressure cavity 111 and a gas exchange passage 112 connected to the negative pressure cavity 111, the milk suction cavity 101 and the milk discharge passage 103 of the device body 10 are formed in the negative pressure forming unit 11, and the air pressure state of the negative pressure cavity 111 of the negative pressure forming unit 11 and the air pressure state of the milk suction cavity 101 of the device body 10 are positively correlated, wherein the milk storage cavity 102 of the device body 10 is formed in the milk bottle 13, the one-way valve 12 and the milk bottle 13 are respectively installed in the negative pressure forming unit 11, and the milk bottle 13 covers the one-way valve 12, the one-way valve 12 is used to control the communication state of the milk discharge passage 103 of the device body 10, that is, the one-way valve 12 allows the milk suction cavity 101 and the milk storage cavity 102 to communicate, and the one-way valve 12 prevents the milk suction cavity 101 and the milk storage cavity 102 from communicating.

[0072] One end of the gas pipe 300 is installed in the negative pressure forming unit 11, and the gas pipe 300 and the gas exchange passage 112 of the negative pressure forming unit 11 are in communication, so that the milk suction device host 200 can draw out the gas in the negative pressure cavity 111 of the negative pressure forming unit 11 through the gas pipe 300 to reduce the air pressure in the negative pressure cavity 111, and correspondingly, the gas in the external environment can also enter the negative pressure cavity 111 of the negative pressure forming unit 11 through the gas pipe 300 to increase the air pressure in the negative pressure cavity 111.

[0073] When the user wears the breast pump device 100, when the breast pump host 200 works, the air in the negative pressure cavity 111 of the negative pressure forming unit 11 is discharged through the gas exchange channel 112 and the gas pipe 300 to reduce the air pressure in the negative pressure cavity 111, at this time the one-way valve 12 closes the milk discharge channel 103 of the device body 10, the space of the breast milk cavity 101 of the device body 10 increases to cause the air pressure in the breast milk cavity 101 to decrease, at this time the milk can be sucked out and temporarily stored in the breast milk cavity 101 of the device body 10, then the air of the external environment enters the negative pressure cavity 111 through the gas pipe 300 and the gas exchange channel 112 of the negative pressure forming unit 11 to increase the air pressure in the negative pressure cavity 111, at this time the one-way valve 12 opens the milk discharge channel 103 of the device body 10, the milk temporarily stored in the breast milk cavity 101 of the device body 10 enters the milk storage cavity 102 through the milk discharge channel 103 of the device body 10. Repeat this, the user can use the breast pump of the utility model to pump milk.

[0074] That is, when the space of the negative pressure cavity 111 of the negative pressure forming unit 11 decreases, the space of the breast milk cavity 101 of the device body 10 increases, when the space of the negative pressure cavity 111 of the negative pressure forming unit 11 increases, the space of the breast milk cavity 101 of the device body 10 decreases, so the size of the space of the negative pressure cavity 111 of the negative pressure forming unit 11 and the size of the space of the breast milk cavity 101 of the device body 10 are negatively related. When the air pressure in the negative pressure cavity 111 of the negative pressure forming unit 11 decreases, the air pressure in the breast milk cavity 101 of the device body 10 decreases, when the air pressure in the negative pressure cavity 111 of the negative pressure forming unit 11 increases, the air pressure in the breast milk cavity 101 of the device body 10 increases, so the air pressure state in the negative pressure cavity 111 of the negative pressure forming unit 11 and the air pressure state in the breast milk cavity 101 of the device body 10 are positively related.

[0075] Further, the negative pressure forming unit 11 comprises a support shell 113 and a negative pressure forming part 114, the negative pressure forming part 114 is installed on the support shell 113, the negative pressure cavity 111 of the negative pressure forming unit 11 is formed between the support shell 113 and the negative pressure forming part 114, wherein the gas exchange channel 112 of the negative pressure forming unit 11 is formed on the support shell 113. The milk suction cavity 101 and the milk discharge channel 103 of the device body 10 are formed in the negative pressure forming part 114. The negative pressure cavity 111 of the negative pressure forming unit 11 and the milk suction cavity 101 of the device body 10 are independent of each other, that is, the negative pressure cavity 111 and the milk suction cavity 101 are separated, so that the space size of the negative pressure cavity 111 of the negative pressure forming unit 11 and the space size of the milk suction cavity 101 of the device body 10 can be negatively correlated, and the gas pressure state in the negative pressure cavity 111 of the negative pressure forming unit 11 and the gas pressure state in the milk suction cavity 101 of the device body 10 can be positively correlated.

[0076] In the drawings Figures 1 to 13 In this specific example of the breast pump of the utility model, the horn cover 20 is detachably installed on the device body 10, so that on the one hand, the horn cover 20 can be cleaned separately after being detached from the device body 10, and on the other hand, the user can select the horn cover 20 with appropriate material and / or size according to needs.

[0077] Specifically, the horn cover 20 comprises an inner extension section 23, which extends outward from a side of the outer first extension section 21 adjacent to the device body 10, that is, the inner extension section 23 and the outer second extension section 22 extend outward from opposite sides of the outer first extension section 21 respectively. In some specific examples of the breast pump, the horn cover 20 can be a one-piece structure, that is, the inner extension section 23 and the outer second extension section 22 integrally extend outward from opposite sides of the outer first extension section 21 respectively.

[0078] The inner extension section 23 of the horn cover 20 is detachably installed on the negative pressure forming unit 11 of the device body 10, so that when the inner extension section 23 is installed on the negative pressure forming unit 11, the horn cover 20 is arranged on the device body 10. Specifically, referring to FIG. 2, the inner extension section 23 of the horn cover 20 is detachably installed on the negative pressure forming part 114 of the negative pressure forming unit 11. Figure 7 And Figure 8 Based on friction, the inner extension section 23 of the horn cover 20 is installed on the negative pressure forming part 114 of the negative pressure forming unit 11.

[0079] Continuing to refer to FIG. 2, the inner extension section 23 of the horn cover 20 is detachably installed on the negative pressure forming part 114 of the negative pressure forming unit 11. Figures 1 to 13The trumpet cover 20 comprises a contact portion 24 formed at the joint of the inner extension 23 and the outer first extension 21. When the user wears the breast pump 100, the contact portion 24 of the trumpet cover 20 is used to contact the areola part, so that the areola part and the one-way valve 12 can form a closed space for the breast pumping cavity 101 of the device body 10.

[0080] In the following description of the drawings, Figures 1 to 13 In this example of the breast pump, the outer first extension 21 of the trumpet cover 20 forms a shoulder ring 21A, the outer second extension 22 forms a deformable trumpet cover 22A, and the inner extension 23 forms a fitting ring 23A. That is, the trumpet cover 20 comprises the shoulder ring 21A, the trumpet cover 22A, and the fitting ring 23A. The fitting ring 23A extends from the inner edge of the shoulder ring 21A to one side, and the trumpet cover 22A extends from the outer edge of the shoulder ring 21A to the opposite direction. The contact portion 24 of the trumpet cover 20 is located at the joint of the shoulder ring 21A and the fitting ring 23A. Preferably, in one specific example of the breast pump of the present application, the fitting ring 23A integrally extends from the inner edge of the shoulder ring 21A to one side, and the trumpet cover 22A integrally extends from the outer edge of the shoulder ring 21A to the opposite direction. That is, the trumpet cover 20 is an integral whole. For example, in some embodiments, the trumpet cover 20 can be injection molded by a silica gel material, so that the trumpet cover 20 is flexible and an integral whole.

[0081] In the following description of the drawings, Figure 8, the assembly ring body 23A of the horn cover 20 is assembled in the negative pressure forming part 114, and there is a moving space 1000 between the horn cover body 22A and the negative pressure forming unit 11, so as to allow the deformed horn cover body 22A to turn to the negative pressure forming unit 11. When the user wears the breast pump 100 by adsorbing the breast through the horn cover 20, the opening of the horn cover body 22A is closed by the breast, and the horn cover body 22A provides a gripping force for “grabbing” the breast, so that: on the one hand, before the user wears the breast pump 100, the horn cover body 22A can be turned to the negative pressure forming unit 11 in advance, and after the nipple is aligned with the breast areola part of the abutting part 24 of the horn cover 20, the horn cover body 22A is restored, so that the horn cover body 22A is closely attached to the breast in a manner of “grabbing” the breast, so that the breast can close the opening of the horn cover body 22A, so that the horn cover 20 can be adsorbed on the breast, and the abutting part 24 of the horn cover 20 can keep abutting with the breast areola part, so that the breast pump cavity 101 of the device body 10 and a part of the internal space of the horn cover 20 form a negative pressure environment during the breast pumping process; on the other hand, after the user wears the breast pump 100 by adsorbing the breast through the horn cover 20, the horn cover 20 isolates the negative pressure forming unit 11 and the breast, so as to avoid the negative pressure forming unit 11 directly contacting the breast, and the flexible horn cover 20 can improve the comfort of the user using the breast pump; on the other hand, when the assembly ring body 23A of the horn cover 20 changes with the position change of the negative pressure forming unit 11, the shoulder ring body 21A of the horn cover 20 can be deformed to prevent the horn cover body 22A from changing with the position change of the negative pressure forming unit 11, so that the horn cover 20 can be reliably attached to the breast of the user in a manner of “grabbing” the breast during the breast pumping process, and the breast pump 100 is prevented from falling off the breast and milk leakage is avoided.

[0082] In the breast pump of the utility model, refer to the drawings Figure 8, the distance D1 between the abutting portion 24 of the horn cover 20 and the outer edge of the outer second extending section 22 is greater than the distance D2 between the portion of the negative pressure forming portion 114 for defining the assembly opening and the outer edge of the outer second extending section 22, so that the abutting portion 24 of the horn cover 20 is retracted to allow the device body 10 to surround at least a portion of the abutting portion 24, so that the center of gravity of the breast pump 100 can be closer to the horn cover 20, so that when the user wears the breast pump 100, the center of gravity of the breast pump 100 is closer to the body, and the component force of the gravity of the breast pump 100 acting on the breast can be reduced, so that the breast pump 100 can reduce the requirement for the gripping force of the horn cover 20, so as to avoid the breast pump 100 from falling off the breast and avoid the breast pump 100 from causing compression to the breast during the breast pumping process, so as to ensure the health of the breast.

[0083] In the breast pump of the utility model, referring to the accompanying drawings Figure 8 , the outer first extending section 21 of the horn cover 20 extends outward and forward from the inner extending section 23 to a direction substantially perpendicular to the inner extending section 23, and the outer second extending section 22 extends outward and forward from the outer first extending section 21 to a direction substantially horizontal to the inner extending section 23, so that in the case that the outer edge of the outer second extending section 22 and the outer edge of the inner extending section 23 have a small distance, the outer edge of the outer second extending section 22 can form a larger opening, and the horn cover 20 can form a smaller opening at the position of the abutting portion 24, so that the outer second extending section 22 can grip the breast and the abutting portion 24 can abut the areola portion, so that when the user wears the breast pump 100, the center of gravity of the breast pump 100 is closer to the body, so that the component force of the gravity of the breast pump 100 acting on the breast can be reduced, so that the breast pump 100 can reduce the requirement for the gripping force of the outer second extending section 22, so as to avoid the breast pump 100 from falling off the breast and avoid the breast pump 100 from causing compression to the breast during the breast pumping process, so as to ensure the health of the breast.

[0084] In addition, in the breast pump of the utility model, the negative pressure forming unit 11 of the device body 10 does not need to be provided with any electronic components, but is connected with the breast pump main machine 200 through the gas pipe 300 and the gas exchange channel 112 of the negative pressure forming unit 11, so that the breast pump 100 can have a lighter weight and a smaller size, not only can make the center of gravity of the breast pump 100 closer to the horn cover 20 so that the breast pump 100 can be reliably worn, but also the lighter weight can reduce the burden on the breast.

[0085] With reference to the accompanying drawings Figure 8 The angle of the included angle β between the inner wall of the outer second extending section 22 of the horn cover 20 and the central axis 201 of the horn cover 20 cannot be too small or too large. If the angle of the included angle β is too small, the opening size of the outer second extending section 22 is too small, and thus the outer second extending section 22 cannot cover the breast and the abutting portion 24 of the horn cover 20 cannot abut the areola site. Even if the breast is forced to be inserted into the outer second extending section 22, the outer second extending section 22 provides a large gripping force and acts on the breast, causing discomfort of the breast and even damage to the breast. If the angle of the included angle β is too large, the opening size of the outer second extending section 22 is too large, and thus the outer second extending section 22 cannot fit the breast to provide a suitable gripping force. In the breast pump of the present application, the minimum value of the included angle β is preferably not less than 15°, and the maximum value is preferably not more than 40°. Therefore, the suitable range of the included angle β is 15° to 40°, i.e., the included angle β satisfies: 15°≤β≤40°.

[0086] In addition, with reference to the accompanying drawings Figure 8 The angle of the included angle α between the inner wall of the outer first extending section 21 of the horn cover 20 and the central axis 201 of the horn cover 20 is larger than the angle of the included angle β. In this way, in the case that the outer edge of the outer second extending section 22 and the outer edge of the inner extending section 23 have a small distance, the outer edge of the outer second extending section 22 can form a large opening, and the horn cover 20 can form a small opening at the position of the abutting portion 24, so that the outer second extending section 23 can grip the breast and the abutting portion 24 can abut the areola site, thereby making the center of gravity of the breast pump 100 closer to the body when the user wears the breast pump 100, so that the component force of the gravity of the breast pump 100 acting on the breast can be reduced, thereby reducing the requirement of the gripping force of the breast pump 100 on the horn cover 20, to avoid the breast pump 100 from falling off the breast and to avoid the breast pump 100 from causing compression to the breast during the breast pumping process, thereby ensuring the health of the breast.

[0087] With reference to the accompanying drawings Figure 7 , Figure 8 and Figure 12, the inner extension section 23 of the horn cover 20 extends to the outside of the milk discharge passage 103 of the device body 10 after being installed in the negative pressure forming portion 114, so as to form a step, in this way, the milk sucked out can be blocked by the inner extension section 23, avoiding the milk flowing to the position of the outer second extension section 22, and further avoiding the milk leaking from the position of the outer second extension section 22 and the breast. In other words, the milk sucked out is only allowed to be discharged through the milk discharge passage 103 of the device body 10.

[0088] Reference is made to the accompanying drawings Figures 5 to 9 , the horn cover 20 further comprises a limiting portion 25, the limiting portion 25 extends from the peripheral wall of the inner extension section 23 to the direction perpendicular to the extension direction of the inner extension section 23, and the limiting portion 25 and the outer first extension section 21 have a gap therebetween, in this way, when the horn cover 20 is installed in the device body 10, the limiting portion 25 limits the assembly depth of the inner extension section 23 by abutting against the negative pressure forming portion 114, in this way: on the one hand, the limiting portion 25 can ensure that the outer first extension section 21 and the negative pressure forming portion 114 have a gap therebetween, so that the outer first extension section 21 can deform when the inner extension section 23 changes with the position change of the negative pressure forming unit 11, on the other hand, the limiting portion 25 can ensure that the outer edge of the inner extension section 23 extends to the outside of the milk discharge passage 103 of the device body 10, avoiding that the inner extension section 23 covers the milk discharge passage 103 of the device body 10.

[0089] In the accompanying drawings Figures 1 to 13 , the limiting portion 25 is annular, and the distance between the outer side of the limiting portion 25 and the central axis 201 of the horn cover 20 is greater than the distance between the outer side of the outer first extension section 21 and the central axis 201 of the horn cover 20, in this way, from the top view of the horn cover 20 (the angle perpendicular to the central axis 201 of the horn cover 20), the limiting portion 25 covers the outer first extension section 21, so that the outer first extension section 21 is visually invisible.

[0090] Reference is made to the accompanying drawings Figures 6 to 8The negative pressure forming portion 114 has an embedding groove 1141, and the limiting portion 25 of the horn cover 20 has an embedding protrusion 251, the shape and size of which match those of the embedding groove 1141 of the negative pressure forming portion 114, wherein the embedding protrusion 251 of the limiting portion 25 is embedded in the embedding groove 1141 of the negative pressure forming portion 114, and based on the friction force generated between the inner wall of the embedding groove 1141 for forming the negative pressure forming portion 114 and the outer wall of the embedding protrusion 251 of the limiting portion 25, the horn cover 20 can be reliably installed in the negative pressure forming portion 114.

[0091] In the drawings Figures 1 to 13 In this specific example of the breast pump shown, the embedding groove 1141 of the negative pressure forming portion 114 is annular, and correspondingly, the embedding protrusion 251 of the limiting portion 25 of the horn cover 20 is annular and surrounds the inner extension 23, so that when the horn cover 20 is installed in the device body 10, the installation direction of the horn cover 20 does not need to be concerned.

[0092] Continuing to refer to the drawings Figures 1 to 13 The support shell 113 includes a shell body 1131 and a horn body 1132 integrally extending outward from one end of the shell body 1131, the shell body 1131 has an installation cavity 11311 and an installation opening 11312 communicating with the installation cavity 11311, the gas exchange channel 112 of the negative pressure forming unit 11 is arranged in the shell body 1131, and the gas exchange channel 112 of the negative pressure forming unit 11 and the installation cavity 11311 of the shell body 1131 are in communication.

[0093] The negative pressure forming portion 114 includes a deformed portion 1141 and a skeleton portion 1142, the breast pumping cavity 101 and the milk discharging channel 103 of the device body 10 are formed in the deformed portion 1141, the deformed portion 1141 has a combined end 11411 and a deformed end 11412 corresponding to the combined end 11411, and the skeleton portion 1142 is combined with the combined end 11411 of the deformed portion 1141.

[0094] The skeleton portion 1142 of the negative pressure forming portion 114 is mounted to the mounting opening 11312 of the shell main body 1131 of the support shell 113, and the deformed portion 1141 extends to the mounting cavity 11311 through the mounting opening 11312 of the shell main body 1131, and the negative pressure cavity 111 of the negative pressure forming unit 11 is formed between the deformed portion 1141 and the shell main body 1131. In other words, the mounting cavity 11311 of the shell main body 1131 is used to form the negative pressure cavity 111 of the negative pressure forming unit 11, and the gas exchange channel 112 of the negative pressure forming unit 11 is in communication with the negative pressure cavity 111 due to the communication between the gas exchange channel 112 of the negative pressure forming unit 11 and the shell main body 1131.

[0095] When the breast pump main machine 200 is working, the air in the negative pressure cavity 111 of the negative pressure forming unit 11 is extracted through the gas exchange channel 112 and the gas tube 300 to reduce the air pressure in the negative pressure cavity 111, at this time the one-way valve 12 closes the milk discharge channel 103 of the device body 10, and the deformed end 11412 of the deformed portion 1141 is deformed towards the end of the shell main body 1131 away from the horn body 1132 to increase the space of the breast milk suction cavity 101 of the device body 10, thereby causing the air pressure in the breast milk suction cavity 101 to decrease, and as the air in the external environment enters the negative pressure cavity 111 of the negative pressure forming unit 11 through the gas tube 300 and the gas exchange channel 112 of the negative pressure forming unit 11, the air pressure in the negative pressure cavity 111 increases, at this time the one-way valve 12 opens the milk discharge channel 103 of the device body 10 to discharge milk, and the deformed end 11412 of the deformed portion 1141 is deformed towards the end of the shell main body 1131 away from the horn body 1132 to reduce the space of the breast milk suction cavity 101 of the device body 10, thereby causing the air pressure in the breast milk suction cavity 101 to increase.

[0096] It is worth mentioning that the manner in which the skeleton part 1142 is combined with the combined end 11411 of the deformed part 1141 is not limited in the breast pump of the utility model. For example, in one specific example of the breast pump of the utility model, the deformed part 1141 and the skeleton part 1142 are respectively made, glue is used to bond the skeleton part 1142 to the combined end 11411 of the deformed part 1141, so that the skeleton part 1142 is combined with the combined end 11411 of the deformed part 1141. In another specific example of the breast pump of the utility model, first, the deformed part 1141 is made, and then the skeleton part 1142 is integrally combined with the deformed part 1141 through a secondary encapsulation process, so that the skeleton part 1142 is combined with the combined end 11411 of the deformed part 1141. In another specific example of the breast pump of the utility model, first, the skeleton part 1142 is made, and then the combined end 11411 of the deformed part 1141 is integrally combined with the skeleton part 1142 through a secondary encapsulation process, so that the skeleton part 1142 is combined with the combined end 11411 of the deformed part 1141.

[0097] In the accompanying drawings Figures 1 to 13 of the utility model, the skeleton part 1142 of the negative pressure forming part 114 surrounds the combined end 11411 of the deformed part 1141, so that the skeleton part 1142 enables the negative pressure forming part 114 to be reliably installed in the support shell 113.

[0098] Referring to the accompanying drawings Figures 5 to 8 , the bottom of the skeleton part 1142 of the negative pressure forming part 114 has an inner installation arm 11421, an outer installation arm 11422 surrounding the inner installation arm 11421, and an arm body passage 11423 penetrating the inner installation arm 11421 and communicating with the milk discharge passage 103 of the device body 10, the one-way valve 12 is installed in the inner installation arm 11421 of the skeleton part 1142, and the feeding bottle 13 is installed in the outer installation arm 11422 of the skeleton part 1142, so as to respectively arrange the one-way valve 12 and the feeding bottle 13 in the negative pressure forming part 114 of the negative pressure forming unit 11.

[0099] Preferably, the one-way valve 12 is a duckbill valve, which can switch between an open state and a closed state as the air pressure state in the breast pumping cavity 101 of the device body 10 changes, wherein when the deformation end 11412 of the deformation portion 1141 deforms towards the end of the shell body 1131 away from the horn body 1132, causing the air pressure in the breast pumping cavity 101 to decrease, the one-way valve 12 closes the breast milk discharge passage 103 of the device body 10, and when the deformation end 11412 of the deformation portion 1141 deforms towards the end of the shell body 1131 away from the horn body 1132, causing the air pressure in the breast pumping cavity 101 to increase, the one-way valve 12 opens the breast milk discharge passage 103 of the device body 10.

[0100] In the drawings: Figures 1 to 13 In this example of the breast pump of the utility model shown, the negative pressure forming portion 114 is detachably mounted to the support shell 113, so that the negative pressure forming portion 114 can be separately cleaned after being detached from the support shell 113, to improve the hygiene of the breast pumping device 100.

[0101] In the drawings: Figures 10 to 13The device body 10 of the breast milk suction device 100 further comprises at least one ball head plunger 14, which comprises a column part 141, a compression spring 142 and a ball head part 143. The column part 141 has a column cavity 1411 and a cavity opening 1412 connected to the column cavity 1411. The compression spring 142 is arranged in the column cavity 1411 of the column part 141 in a compressible manner. The ball head part 143 is movably arranged in the cavity opening 1412 of the column part 141, and the bottom of the ball head part 143 abuts against the compression spring 142, and the top of the ball head part 143 protrudes out of the column part 141. The column part 141 of the ball head plunger 14 is fixedly mounted on the shell main body 1131 of the support shell 113, and the ball head part 143 protrudes into the mounting cavity 11311 of the shell main body 1131. The outer wall of the framework part 1142 of the negative pressure forming part 114 has at least one retaining groove 11424. When the negative pressure forming part 114 is mounted on the support shell 113, the outer wall of the framework part 1142 pushes the ball head part 143 towards the bottom of the column part 141, so as to extrude the compression spring 142 by the ball head part 143 to accumulate elastic potential energy. When the negative pressure forming part 114 is mounted in place, the compression spring 142 pushes the ball head part 143 away from the bottom of the column part 141, so that the ball head part 143 protrudes into the retaining groove 11424 of the framework part 1142. Based on the friction force generated between the peripheral wall of the framework part 1142 for forming the retaining groove 11424 and the outer surface of the ball head part 143, the ball head plunger 14 makes the negative pressure forming part 114 reliably mounted on the support shell 113. Accordingly, when the negative pressure forming part 114 is dismounted from the support shell 113, as long as the pulling force of the negative pressure forming part 114 is greater than the friction force generated between the peripheral wall of the framework part 1142 for forming the retaining groove 11424 and the outer surface of the ball head part 143, the ball head part 143 can be separated from the retaining groove 11424 of the framework part 1142.

[0102] It is worth mentioning that the way in which the column part 141 of the ball head plunger 14 is fixedly mounted on the shell main body 1131 of the support shell 113 is not limited in the breast milk suction device of the present application. For example, in this specific example of the breast milk suction device of the present application, referring to FIG. 1, the column part 141 of the ball head plunger 14 is fixedly mounted on the shell main body 1131 of the support shell 113 by means of a plurality of screws 1431. Figure 10 and Figure 11The shell body 1131 of the supporting shell 113 has at least one mounting hole 11313 , and the column portion 141 of the ball plunger 14 is mounted in the mounting hole 11313 of the shell body 1131 to fixedly mount the column portion 141 on the shell body 1131 .

[0103] In a specific example of the breast pump of the present invention, the shell body 1131 of the support shell 113 has two mounting holes 11313, and the two mounting holes 11313 are located on opposite sides of the mounting cavity 11311. The number of the ball plungers 14 is two, and the column portion 141 of each ball plunger 14 is fixedly mounted on each mounting hole 11313 of the shell body 1131. In this way, one ball plunger 14 is provided on opposite sides of the mounting cavity 11311 of the shell body 1131, and correspondingly, one holding groove 11424 is provided on opposite sides of the skeleton portion 1142 of the negative pressure forming portion 114, so that the negative pressure forming portion 114 can be formed in the negative pressure forming portion 114. When the forming part 114 is installed on the shell body 1131 of the supporting shell 113, the ball head parts 143 of the two ball head plungers 14 are respectively held in the two retaining grooves 11424 of the skeleton part 1142, so that the negative pressure forming part 114 can be reliably installed in the mounting opening 11312 of the shell body 1131. In this way, the skeleton part 1142 and the shell body 1131 can squeeze a part of the deformation part 1141 so that the part of the deformation part 1141 prevents the generation of a gap between the skeleton part 1142 and the shell body 1131 by deformation, thereby ensuring the sealing of the negative pressure chamber 111 of the negative pressure forming unit 11.

[0104] In the attached Figures 1 to 13 In an example of the breast pump of the present invention shown, the device body 10 further includes an airway unit 15 , and the airway unit 15 includes an air guide seat 151 and a reversing seat 152 .

[0105] The air guide seat 151 has a transversely extending first air duct 1511 and a bottom socket 1512 and a top socket 1513 respectively connected to the first air duct 1511. The top of the shell body 1131 of the supporting shell 113 has a shell insertion arm 11314. The opening of the gas exchange channel 112 of the negative pressure forming unit 11 is formed on the end face of the shell insertion arm 11314. The air guide seat 151 is arranged on the top of the shell body 1131 in such a way that the shell insertion arm 11314 is inserted into the bottom socket 1512.

[0106] The reversing seat 152 has a bottom insertion arm 1521, a side insertion arm 1522, and a second air channel 1523, one opening of which is formed on the end face of the bottom insertion arm 1521, and the other opening is formed on the end face of the side insertion arm 1522. The bottom insertion arm 1521 of the reversing seat 152 is inserted into the top insertion hole 1513 of the air guide seat 151, so that the negative pressure cavity 111 of the negative pressure forming unit 11, the first air channel 1511 of the air guide seat 151, and the second air channel 1523 of the reversing seat 152 are sequentially communicated.

[0107] In the embodiment shown in the figure, Figures 1 to 13 In this example of the breast pump shown in the figure, by arranging the air guide seat 151 and the reversing seat 152 on the top of the shell main body 1131 of the support shell 113, the part of the breast pumping device 100 for connecting the air tube 300 (i.e. the side insertion arm 1522 of the reversing seat 152) can be arranged at a reasonable position, avoiding occupying a large space. In other words, the arrangement of the air guide seat 151 and the reversing seat 152 of the air channel unit 15 can realize the miniaturization of the breast pumping device 100, so that after the user wears the breast pumping device 100, if a bra needs to be worn, the breast pumping device 100 will not excessively stretch the bra outward, and at the same time, the pressure of the bra applied to the breast by the breast pumping device 100 will also be reduced, thus improving the comfort of the user when pumping milk through the breast pumping device 100.

[0108] In the embodiment shown in the figure, Figures 1 to 13 In this example of the breast pump shown in the figure, the bottom insertion arm 1521 of the reversing seat 152 is detachably inserted into the top insertion hole 1513 of the air guide seat 151, so that the user can select the orientation of the side insertion arm 1522 of the reversing seat 152 as needed, for example, the user can allow the bottom insertion arm 1521 of the reversing seat 152 to be inserted into the top insertion hole 1513 of the air guide seat 151 with the side insertion arm 1522 of the reversing seat 152 facing the left side as needed, or allow the bottom insertion arm 1521 of the reversing seat 152 to be inserted into the top insertion hole 1513 of the air guide seat 151 with the side insertion arm 1522 of the reversing seat 152 facing the right side as needed, in this way, the user does not need to distinguish between the two breast pumping devices 100 during the assembly of the breast pump.

[0109] In the embodiment shown in the figure, Figures 1 to 13In this example of the breast pump shown, the negative pressure forming unit 11 further comprises an outer shell 115 and a receiving cavity 116, the outer shell 115 has a positioning hole 1151, the outer shell 115 is fixedly installed on the outer edge of the horn body 1132 of the support shell 113 to form the receiving cavity 116 of the negative pressure forming unit 11 between the support shell 113 and the outer shell 115, and the positioning hole 1151 of the outer shell 115 is communicated with the receiving cavity 116 of the negative pressure forming unit 11. The air guide seat 151 has a top boss 1514, the opening of the top insertion hole 1513 is formed on the end face of the top boss 1514, the air guide seat 151 is received in the receiving cavity 116 of the negative pressure forming unit 11, and the top boss 1514 of the air guide seat 151 extends to the positioning hole 1151 of the outer shell 115. It can be understood that, since the shell insertion arm 11314 of the shell main body 1131 of the support shell 113 is inserted into the bottom insertion hole 1512 of the air guide seat 151 and the top boss 1514 of the air guide seat 151 extends to the positioning hole 1151 of the outer shell 115, the air guide seat 151 is stably received in the receiving cavity 116 of the negative pressure forming unit 11, and the air guide seat 151 cannot be displaced when the bottom insertion arm 1521 of the reversing seat 152 is inserted into the top insertion hole 1513 of the air guide seat 151 or pulled out of the top insertion hole 1513 of the air guide seat 151.

[0110] Reference is made to the accompanying drawings Figure 7 And Figure 8 The top of the shell main body 1131 of the support shell 113 has a positioning wall 11315, the positioning wall 11315 surrounds the bottom of the air guide seat 151, and the inner wall of the positioning wall 11315 and the outer wall of the air guide seat 151 are fitted, so that, on the one hand, the positioning wall 11315 of the shell main body 1131 can pre-position the air guide seat 151 before the outer shell 115 is assembled on the support shell 113, so that the positioning wall 11315 of the shell main body 1131 can avoid the displacement of the air guide seat 151 during the assembly of the outer shell 115 on the support shell 113, thereby improving the assembly efficiency, and on the other hand, the positioning wall 11315 of the shell main body 1131 can avoid the displacement of the air guide seat 151 when the bottom insertion arm 1521 of the reversing seat 152 is inserted into the top insertion hole 1513 of the air guide seat 151 or pulled out of the top insertion hole 1513 of the air guide seat 151.

[0111] With reference to the drawings Figures 5 to 8 The outer cover 115 comprises an outer shell 1152 and a cover 1153, and the positioning hole 1151 is formed in the cover 1153, wherein the outer shell 1152 has an outer shell passage 11521, the outer shell 1152 is fixedly installed on the outer edge of the horn body 1132 of the support shell 113, the position of the top boss 1514 of the air guide base 151 corresponds to the position of the outer shell passage 11521 of the outer shell 1152, and the cover 1153 is fixedly installed on the outer shell passage 11521 of the outer shell 1152 in a manner that the top boss 1514 of the air guide base 151 is inserted into the positioning hole 1151 of the outer cover 115, so that the support shell 113, the air guide base 151 and the outer cover 115 can be conveniently installed, and the air guide base 151 is prevented from being misaligned.

[0112] It is worth mentioning that the manner in which the outer shell 1152 is fixedly installed on the horn body 1132 of the support shell 113 is not limited in the breast pump of the utility model. For example, in this specific example of the breast pump of the utility model, with reference to the drawings Figure 5 The rear side of the horn body 1132 of the support shell 113 is provided with a plurality of clamping arms 11321, the clamping arms 11321 are provided with clamping holes 113211, the inner wall of the outer shell 1152 is provided with a plurality of clamping protrusions 11522, the clamping arms 11321 of the horn body 1132 extend into the inside of the outer shell 1152, and the clamping protrusions 11522 of the outer shell 1152 are clamped into the clamping holes 113211 of the clamping arms 11321, respectively, so that the outer shell 1152 is fixedly installed on the horn body 1132 of the support shell 113.

[0113] Alternatively, in other specific examples of the breast pump of the utility model, the clamping arms 11321 can be arranged on the outer shell 1152, and the clamping protrusions 11522 are arranged on the horn body 1132, so that the clamping arms 11321 of the outer shell 1152 extend into the inside of the horn body 1132, and the clamping protrusions 11522 of the horn body 1132 are clamped into the clamping holes 113211 of the clamping arms 11321 of the outer shell 1152, respectively, so that the outer shell 1152 is fixedly installed on the horn body 1132 of the support shell 113.

[0114] It is worth mentioning that the way the anti-off cover 1153 is fixedly installed in the shell passage 11521 of the shell body 1152 is not limited in the breast pump of the utility model. For example, in this specific example of the breast pump of the utility model, referring to the drawings Figures 5 to 7 , the anti-off cover 1153 has a plurality of hook arms 11531 on opposite sides, the shape of the anti-off cover 1153 matches the shape of the shell passage 11521 of the shell body 1152, and the size of the anti-off cover 1153 is slightly larger than the size of the shell passage 11521 of the shell body 1152, the hook arms 11531 of the anti-off cover 1153 extend from the outside to the inside of the shell body 1152 through the shell passage 11521 of the shell body 1152, to fixedly install the anti-off cover 1153 in the shell passage 11521 of the shell body 1152, and the anti-off cover 1153 seals the shell passage 11521 of the shell body 1152.

[0115] In the drawings Figures 1 to 13 shown in this example of the breast pump, the bottom of the shell main body 1131 of the support shell 113 has an installation gap 11316, the external installation arm 11422 of the framework part 1142 can be held in the installation gap 11316 of the shell main body 1131, the milk bottle 13 is installed in the external installation arm 11422 of the framework part 1142, so that on the one hand, the milk sucked out can be collected into the milk bottle 13, on the other hand, the part of the shell main body 1131 for forming the installation gap 11316 holds the framework part 1142 above and the milk bottle 13 below, so that the framework part 1142 and the milk bottle 13 clamp the part of the shell main body 1131 for forming the installation gap 11316 on opposite sides to further ensure that the negative pressure forming part 114 is reliably and stably installed in the support shell 113.

[0116] Referring to the drawings Figure 5 and Figure 6The outer mounting arm 11422 of the skeleton part 1142 has at least one clamping groove 114221 extending in a circumferential direction and at least one guide groove 114222 extending in a height direction and communicating with one end of the clamping groove 114221, the bottle mouth of the feeding bottle 13 has at least one clamping protrusion 131, and the clamping protrusion 131 of the feeding bottle 13 can slide into the clamping groove 114221 through the guide groove 114222 of the outer mounting arm 11422 of the skeleton part 1142 to mount the feeding bottle 13 on the outer mounting arm 11422 of the skeleton part 1142. Optionally, in other examples of the breast pump of the utility model, the feeding bottle 13 and the outer mounting arm 11422 of the skeleton part 1142 can also be detachably mounted through a threaded structure.

[0117] Attached Figure 15 A variant example of the breast pump of the utility model is shown, which is different from the breast pump shown in the attached Figures 1 to 13 The breast pump of the utility model shown in this specific example is different from the breast pump shown in the attached Figure 15 In this specific example of the breast pump of the utility model shown in the attached, the abutting part 24 of the horn cover 20 is mounted on the inner extension section 23, and when a user wears the breast pump device 100, the abutting part 24 of the horn cover 20 is used to abut against the areola part, so that the areola part and the one-way valve 12 can form a closed space for the breast pumping cavity 101 of the device body 10. Preferably, based on the friction force generated between the abutting part 24 and the inner extension section 23, the abutting part 24 can be reliably mounted on the inner extension section 23.

[0118] Further, the resisting portion 24 comprises a ring body portion 241 and a deformable resisting portion 242, the resisting portion 242 extends inwardly and rearwardly from the outer end of the ring body portion 241, the ring body portion 241 is installed on the inner extending section 23, when the user wears the breast pump device 100, the resisting portion 242 of the resisting portion 24 resists the areola, when the pressure in the breast pumping cavity 101 of the device body 10 decreases during the breast pumping process, the areola is pulled towards the breast pumping cavity 101 of the device body 10, the resisting portion 242 of the resisting portion 24 provides resistance to prevent the areola from deforming towards the breast pumping cavity 101 of the device body 10, at this time, the areola is pressed by the pressure to improve the breast pumping efficiency and massage the areola. It can be understood that the resisting portion 242 of the resisting portion 24 deforms towards the breast pumping cavity 101 of the device body 10 while providing resistance, so that the areola is resisted while avoiding being pressed hard, thereby improving comfort. Alternatively, in other examples of the breast pump of the utility model, the resisting portion 242 of the resisting portion 24 and the inner extending section 23 are integrated.

[0119] attached drawings Figures 16 to 21 Another variant example of the breast pump of the utility model is shown, which is different from the attached drawings Figures 1 to 13 The breast pump of the utility model shown in this specific example is different from the attached drawings Figures 16 to 21 In this specific example of the breast pump of the utility model shown, the negative pressure forming unit 11 comprises the supporting shell 113, the negative pressure forming portion 114 and the outer cover 115, the negative pressure forming portion 114 comprises the deformation portion 1141, the supporting shell 113 and the outer cover 115 are installed with each other, the deformation portion 1141 is clamped between the supporting shell 113 and the outer cover 115, the negative pressure cavity 111 of the negative pressure forming unit 11 is formed between the negative pressure forming portion 114 and the outer cover 115, the gas exchange channel 112 of the negative pressure forming unit 11 is formed in the outer cover 115, the breast pumping cavity 101 of the device body 10 is formed between the supporting shell 113 and the deformation portion 1141, the breast milk discharging channel 103 is formed in the supporting shell 113, the one-way valve 12 and the milk bottle 13 are respectively installed on the supporting shell 113.

[0120] Further, the top of the support shell 113 and the top of the cover shell 115 are rotatably mounted, the side of the support shell 113 and the side of the cover shell 115 are detachably mounted, and when the side of the support shell 113 and the side of the cover shell 115 are mounted, the deformation portion 1141 is clamped between the support shell 113 and the cover shell 115, so as to form the milk suction cavity 101 of the device body 10 between the deformation portion 1141 and the support shell 113 and form the negative pressure cavity 111 of the negative pressure forming unit 11 between the deformation portion 1141 and the cover shell 115, and when the side of the support shell 113 and the side of the cover shell 115 are detached, the deformation portion 1141 can be removed from between the support shell 113 and the cover shell 115, so as to clean the negative pressure forming portion 114.

[0121] Further, the inner wall of the cover shell 115 has an annular protrusion 1154, and the deformation portion 1141 has an annular groove 11411, and the annular protrusion 1154 of the cover shell 115 can extend into the annular groove 11411 of the deformation portion 1141, so as to mount the deformation portion 1141 to the cover shell 115, and in this way, the breast pump can avoid the deformation portion 1141 from uncontrollably falling during the process of detaching the side of the support shell 113 from the side of the cover shell 115 and turning over the cover shell 115, and when the side of the cover shell 115 and the side of the support shell 113 are mounted by turning over the cover shell 115, the deformation portion 1141 is pre-mounted to the cover shell 115, so that the deformation portion 1141 is clamped between the support shell 113 and the cover shell 115.

[0122] It is worth mentioning that the mounting mode of the side of the support shell 113 and the side of the cover shell 115 is not limited in the breast pump of the utility model. For example, in the attached drawings, the side of the support shell 113 and the side of the cover shell 115 are detachably mounted by means of a plurality of screws. Figures 16 to 21In the specific example of the breast pump shown in the utility model, the side of the support shell 113 has a deformable extension arm 1133, the end of the extension arm 1133 has a positioning protrusion 11331, the side of the cover shell 115 has a positioning hole 1155, in the process of turning over the cover shell 115 to install the side of the cover shell 115 and the side of the support shell 113, the inner wall of the cover shell 115 extrudes the positioning protrusion 11331 of the extension arm 1133 to make the extension arm 1133 bend and deform to accumulate elastic potential energy, when the cover shell 115 is turned over to the position corresponding to the positioning protrusion 11331 of the extension arm 1133 and the positioning hole 1155 of the cover shell 115, the extension arm 1133 restores to make the positioning protrusion 11331 of the extension arm 1133 enter the positioning hole 1155 of the cover shell 115, thereby installing the side of the cover shell 115 and the side of the support shell 113, when it is needed to separate the side of the cover shell 115 and the side of the support shell 113, the positioning protrusion 11331 of the extension arm 1133 is pressed to make the positioning protrusion 11331 exit the positioning hole 1155 of the cover shell 115, then the cover shell 115 is turned over.

[0123] With reference to the drawings Figures 16 to 21 The airway unit 15 is installed on the cover shell 115, and the trachea 300 is allowed to be installed on the airway unit 15.

[0124] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and explained in the embodiments, and the implementation of the utility model can be any deformation or modification without departing from the principle.

Claims

1. Breast milk suction device, characterized in that Comprising: a device body, wherein the device body has a milk suction cavity, a milk storage cavity, and a milk discharge channel capable of communicating the milk suction cavity and the milk storage cavity; and a horn cover, wherein the horn cover is arranged on the device body, and the horn cover comprises an outer first extending section and a reversible outer second extending section, the outer second extending section extends outward from a side of the outer first extending section away from the device body, and the outer first extending section and the outer second extending section have different extending tendencies.

2. The breast pump device according to claim 1, wherein the inner wall of the outer first extending section and the inner wall of the outer second extending section are both inclined surfaces, an included angle a between the inner wall of the outer first extending section and a central axis of the horn cover is larger than an included angle β between the inner wall of the outer second extending section and the central axis of the horn cover.

3. The breast pump device according to claim 1, wherein the inner wall of the outer first extending section and the inner wall of the outer second extending section are both concave arcs, an included angle a between a line connecting opposite sides of the inner wall of the outer first extending section and a central axis of the horn cover is larger than an included angle β between a line connecting opposite sides of the inner wall of the outer second extending section and the central axis of the horn cover.

4. The breast pump device according to claim 1, wherein the inner wall of the outer first extending section is an inclined surface, the inner wall of the outer second extending section is a concave arc, an included angle a between the inner wall of the outer first extending section and a central axis of the horn cover is larger than an included angle β between a line connecting opposite sides of the inner wall of the outer second extending section and the central axis of the horn cover.

5. The breast pump device according to claim 1, wherein the inner wall of the outer first extending section is a concave arc, the inner wall of the outer second extending section is an inclined surface, an included angle a between a line connecting opposite sides of the inner wall of the outer first extending section and a central axis of the horn cover is larger than an included angle β between the inner wall of the outer second extending section and the central axis of the horn cover.

6. The breast pump device according to claim 1, wherein the outer second extending section and the outer first extending section are made of the same material.

7. The breast pump device according to claim 1, wherein the outer second extending section and the outer first extending section are made of different materials.

8. The breast pump device according to claim 6, wherein there is a gap between the outer first extending section and the device body.

9. The breast pump device according to any one of claims 1 to 8, wherein the horn cover comprises an inner extending section, the inner extending section extends outward from a side of the outer first extending section adjacent to the device body, wherein the inner extending section is detachably mounted on the device body, so that the horn cover is arranged on the device body when the inner extending section is mounted on the device body.

10. The breast pump device of claim 9, wherein the funnel cover comprises an abutting portion formed at a connection position of the outer first extension section and the inner extension section for abutting an areola portion.

11. The breast pump device of claim 9, wherein the funnel cover comprises an abutting portion mounted to the inner extension section for abutting an areola portion.

12. The breast pump device of claim 10, wherein at least a portion of the abutting portion of the funnel cover is surrounded by the device body.

13. The breast pump device of any one of claims 1 to 8, wherein the device body comprises a negative pressure forming unit having a negative pressure cavity and a gas exchange passage communicating with the negative pressure cavity, a milk suction passage and a milk discharge passage formed in the negative pressure forming unit, a pressure state of the negative pressure cavity and a pressure state of the milk suction passage being positively correlated, a milk storage cavity formed in a milk bottle, a one-way valve and the milk bottle both mounted to the negative pressure forming unit, and the milk bottle covering the one-way valve, the one-way valve being used to control a communication state of the milk discharge passage of the device body.

14. The breast pump device of claim 13, wherein the negative pressure forming unit comprises a support shell and a negative pressure forming portion mounted to the support shell, the negative pressure cavity being formed between the support shell and the negative pressure forming portion, the gas exchange passage being provided in the support shell, the milk suction passage and the milk discharge passage being provided in the negative pressure forming portion, the one-way valve and the milk bottle being respectively mounted to the negative pressure forming portion, and at least a portion of the negative pressure forming portion being deformable to positively correlate the pressure state of the negative pressure cavity and the pressure state of the milk suction passage.

15. The breast pump device of claim 14, wherein the support shell comprises a shell main body and a funnel body integrally extending outward from one end of the shell main body, the shell main body having a mounting cavity and a mounting opening communicating with the mounting cavity, the negative pressure forming portion comprises a deformation portion and a skeleton portion, the milk suction passage and the milk discharge passage being formed in the deformation portion, the skeleton portion being combined to a combined end of the deformation portion, the skeleton portion of the negative pressure forming portion being mounted to the mounting opening of the shell main body, the deformation portion extending to the mounting cavity through the mounting opening, the negative pressure cavity being formed between the deformation portion and the shell main body, so that the deformation portion positively correlates the pressure state of the negative pressure cavity and the pressure state of the milk suction passage by deformation.

16. A breast pump, characterized in that including: a gas tube; a breast pump main machine; and the breast pump device of any one of claims 1 to 15, wherein the gas tube connects the breast pump main machine and the breast pump device. including:

17. A horn cover characterized by an inner extension section; an outer first extension section; and ​ ​ The outer second extension section is reversibly foldable, wherein the inner extension section and the outer second extension section respectively extend outward from opposite sides of the outer first extension section, and the outer first extension section and the outer second extension section have different extension tendencies.

18. The horn cover according to claim 17, wherein the inner wall of the outer first extension section and the inner wall of the outer second extension section are both bevels, an included angle a between the inner wall of the outer first extension section and a central axis of the horn cover is greater than an included angle b between the inner wall of the outer second extension section and the central axis of the horn cover; or, the inner wall of the outer first extension section and the inner wall of the outer second extension section are both concave arcs, an included angle a between a line connecting opposite sides of the inner wall of the outer first extension section and the central axis of the horn cover is greater than an included angle b between a line connecting opposite sides of the inner wall of the outer second extension section and the central axis of the horn cover; or, the inner wall of the outer first extension section is a bevel, the inner wall of the outer second extension section is a concave arc, an included angle a between the inner wall of the outer first extension section and the central axis of the horn cover is greater than an included angle b between a line connecting opposite sides of the inner wall of the outer second extension section and the central axis of the horn cover; or, the inner wall of the outer first extension section is a concave arc, the inner wall of the outer second extension section is a bevel, an included angle a between a line connecting opposite sides of the inner wall of the outer first extension section and the central axis of the horn cover is greater than an included angle b between the inner wall of the outer second extension section and the central axis of the horn cover.

19. The horn cover according to claim 17, wherein the horn cover is integrally made of silica gel material.

20. The horn cover according to claim 17, wherein the horn cover comprises an abutting portion, the abutting portion is formed at a connecting position of the outer first extension section and the inner extension section or the abutting portion is mounted on the inner extension section, for abutting against an areola site.

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