WO2023000432A1

WO2023000432A1 - Electric breast pump

Info

Publication number: WO2023000432A1
Application number: PCT/CN2021/114381
Authority: WO
Inventors: 陈显资
Original assignee: 深圳童品荟科技有限公司
Priority date: 2021-07-19
Filing date: 2021-08-24
Publication date: 2023-01-26
Also published as: CN215840771U

Abstract

An electric breast pump, comprising: a top shell (1) having one side recessed inward to form an accommodating cavity (11), a horn cover (2) used for accommodating a breast and extending into the accommodating cavity (11), a vacuum pump assembly (3) mounted in the top shell (1) and used for pumping air in the horn cover (2), and a milk storage bottle (5) detachably mounted on the bottom surface of the top shell (1). A mounting port (12) running through to the bottom surface of the top shell (1) is formed at the bottom of the accommodating cavity (11), the end of the horn cover (2) extending into the accommodating cavity (11) extends to form an elongated portion, a milk outlet (21) aligned with the mounting port (12) is formed on the elongated portion, a one-way valve (4) that only allows milk to flow to the milk storage bottle (5) is arranged in the mounting port (12), and an inlet end (41) of the one-way valve (4) sealingly abuts against the milk outlet (21) and an outlet end (42) extends into the milk storage bottle (5). A master unit and milk storage accessories are integrally combined, so that breast pump spare parts are reduced; the design structure of the one-way valve (4) can prevent bacteria from infecting breast milk and allows the breast milk to directly reach the milk storage bottle (5) from a nipple.

Description

electric breast pump

technical field

The utility model relates to the technical field of maternal and infant products, in particular to an electric breast pump.

Background technique

Breast pumps are used by nursing women in the hospital or at home to express breast milk from the breasts and relieve congestion after expressing with a breast pump. If you have mastitis, a breast pump can be used to express breast milk from the infected breast to aid in the healing process. A breast pump can relieve sore, chapped nipples, and can reveal flat or sunken nipples. Breast pumps also allow mothers to provide a way for mothers to breastfeed babies with sucking problems, cleft lip and palate, or premature babies who cannot be fed directly.

Existing electric breast pumps are usually split-type, relatively large in size, inconvenient to carry, the integration of the main unit and the milk storage accessories is not enough, the appearance is uncoordinated, and it is uncomfortable to wear. Moreover, the flow path of breast milk is long and cannot directly reach the feeding bottle, which is easily contaminated.

Therefore, how to design an electric breast pump with a more compact structure and better use effect is a technical problem to be solved urgently in the industry.

Utility model content

In order to solve the defects existing in the prior art, the utility model proposes an electric breast pump. The electric breast pump installs the vacuum pump assembly inside the top shell, and the overall integration reduces the spare parts of the breast pump. The design structure of the one-way valve can avoid Bacteria infect breast milk, allowing breast milk to pass from the nipple to the storage bottle.

The technical scheme adopted by the utility model is to design an electric breast pump, which includes: a top shell with one side inwardly recessed to form an accommodation cavity, a horn cover for accommodating the breast and extending into the accommodation cavity, and a top shell installed in the top shell. And a vacuum pump assembly for extracting air in the horn cover, and a milk storage bottle detachably installed on the bottom surface of the top shell. The bottom of the accommodating chamber is provided with an installation port that goes through to the bottom of the top shell, and the horn cover is provided with a milk outlet that is aligned with the installation port, and a one-way valve that only allows milk to flow to the milk bottle is provided in the installation port, and the inlet port of the one-way valve It is in sealing contact with the milk outlet, and the outlet end extends into the milk storage bottle, and the breast milk directly reaches the milk storage bottle through the one-way valve.

Among them, the end of the horn cover with the milk outlet is extended to form an extension part, and the design of the extension part can provide enough space for the nipple to expand and contract, so as to avoid the problem of nipple wear or strain during breastfeeding.

Preferably, the vacuum pump assembly includes: a suction bowl, a vacuum pump for sucking air in the suction bowl to deform it, a suction pipe connecting the vacuum pump and the suction bowl, and a pressure relief valve for restoring the suction bowl to its original shape. The outer top of the horn cover is provided with a bowl groove that matches the shape of the suction bowl. The bowl groove is provided with a suction hole connected to the inside of the horn cover. A ring of flanges covering the bowl tank, the inner top of the accommodating chamber is provided with an upwardly arched negative pressure chamber, the mouth of the suction bowl opens toward the negative pressure chamber, and the edge of the suction bowl fits in contact with the negative pressure cavity wall. The utility model designs the suction bowl in the bowl groove on the top of the horn cover, and the top shell is designed with a negative pressure chamber. There is a sealing structure between the bowl and the bowl groove and the negative pressure chamber to ensure air tightness.

Preferably, the inside of the top shell is provided with a bracket for installing the vacuum pump. The vacuum pump is wrapped in the bracket. The bracket is made of TPE soft material to achieve shock absorption of moving parts. The fixing method between the bracket and the top shell is not limited. It can be fixed by screws or Hot melt fixation.

In the first embodiment, an upwardly protruding milk inlet is provided on the top surface of the milk storage bottle, and the milk inlet is covered with an adapter cover. The one-way valve is installed on the adapter cover. The recessed part of the connecting cover, and the connecting cover can be detachably installed in the recessed part. A pair of lugs are provided on both sides of the adapter cover, and an elastic snap ring positioned under the pair of lugs and positioned in the recess is supported, and the elastic snap ring is provided with a pair of supporting parts matching the positions of the pair of lugs. The elastic snap ring is provided with a button, and the top case is provided with a key hole for exposing the button. Pressing the elastic snap ring can adjust the distance between the pair of supporting parts, so that the transfer cover is separated from the recessed part. Further, the inner side wall of the milk inlet is provided with buckles, and the outer wall of the adapter cover is provided with buckles that are mated with the buckles. Turning the adapter cover can slide the buckles into the buckles, so that the adapter cover Installed on the milk inlet. In this embodiment, the feeding bottle, transfer cap and one-way valve can be disassembled from the top case as a whole by pressing the button, the operation is simple and convenient, and the feeding bottle, transfer cap and one-way valve can be disassembled separately points for easy cleaning of spare parts.

In the second embodiment, the top surface of the milk storage bottle is provided with an upwardly protruding milk inlet, the one-way valve is fixed in the installation opening, and the bottom surface of the top shell is provided with a recess for accommodating the milk inlet, and the milk inlet can be It is disassembled and installed in the recessed part. The inner wall of the milk inlet is provided with buckles, and the top surface of the concave part is provided with a hook extending downward into the milk inlet. One side of the hook is provided with a buckle that is mated with the buckle. Turning the milk storage bottle can make the card The buckle slides out of the buckle to free the bottle from the recess. In this embodiment, the milk storage bottle can be disassembled separately from the top case by rotating the milk storage bottle, and the structure is simple and there are few spare parts.

Furthermore, in the second embodiment, a circular platform is provided in the middle of the one-way valve, and protrusions are provided around the circular platform. The top shell is composed of an inner shell with an accommodating cavity, a face shell covering the back of the inner shell, and a bottom shell that closes the opening between the inner shell and the face shell. The cavity is provided with a supporting portion matching the shape of the inlet end of the one-way valve, and the bottom shell is provided with a mounting hole for accommodating the round platform, and there are gaps around the mounting hole for placing protrusions, and the one-way valve is clamped and fixed. between the inner shell and the bottom shell.

Preferably, the milk storage bottle and the top case are arranged side by side behind the horn cover up and down, the top surface of the milk storage bottle is attached to the bottom surface of the top case, and the front side of the milk storage bottle is attached to the back of the horn cover to maximize the volume.

Compared with the prior art, the utility model has the following beneficial effects:

1. The overall integration of the breast pump conforms to ergonomics and is comfortable to wear;

2. The horn cover is designed with an extended part to provide enough space for the nipple to expand and contract, and to avoid problems such as pain, wear and strain caused by the nipple being squeezed.

3. The inlet end of the one-way valve is in sealing contact with the milk suction port, and the outlet end extends into the milk storage bottle, so that the breast milk goes directly from the nipple to the milk storage bottle to avoid emulsion pollution;

4. There are two detachable installation methods for the milk storage bottle, which are easy to operate and easy to use.

Description of drawings

The utility model is described in detail below in conjunction with embodiment and accompanying drawing, wherein:

Fig. 1 is the front schematic view of the electric breast pump in the utility model;

Fig. 2 to Fig. 4 are the split schematic diagrams of the first embodiment in the utility model;

5 to 6 are disassembled schematic diagrams of the second embodiment of the present invention.

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Therefore, a feature indicated in this specification will be used to describe one of the features of an embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes a number of features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly described. Thus, the illustrated combinations are not intended to be limiting unless otherwise stated.

The principle of the present utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 to 4, the electric breast pump proposed by the utility model includes: a top shell 1, a horn cover 2, a vacuum pump assembly 3, a one-way valve 4 and a milk storage bottle 5, and the front of the top shell 1 is sunken inward to form Accommodating chamber 11, the bottom of accommodating chamber 11 is provided with the installation port 12 that penetrates to the bottom surface of top shell 1, the front in this paper refers to the side facing the breast during use, and the back refers to the side away from the breast during use. The horn cover 2 extends into the accommodating cavity 11, one end of the horn cover 2 is provided with an opening for accommodating the breast, the other end of the horn cover 2 is extended to form an extension, and the end bottom of the extension is provided with a milk outlet for flowing milk 21. The diameter of the horn cover 2 gradually decreases from the end where the opening is located to the end where the milk outlet 21 is located. The milk outlet 21 is aligned up and down with the installation port 12 of the accommodating cavity, and the design of the extension part can provide sufficient expansion and contraction of the nipple. Space to avoid nipple wear or strain problems during pumping.

The one-way valve 4 is located in the installation port, and it only allows the milk to flow to the milk storage bottle 5. The inlet end 41 of the one-way valve 4 is located below the milk outlet 21, and the inlet end 41 of the one-way valve 4 is provided with a circle of soft rubber. The part abuts against the surrounding of the milk outlet 21 to realize the sealing between the inlet port 41 and the milk outlet. The outlet end 42 of the one-way valve 4 stretches into the milk storage bottle 5 , and the breast milk passes through the one-way valve 4 to directly reach the milk storage bottle 5 . The bottom of the one-way valve 4 adopts the shape of a duckbill valve with two valve pieces. The edges of the two valve pieces are bonded to achieve sealing. When the milk flows into the one-way valve 4 from the milk outlet 21, push the two valve pieces open and enter directly. When the milk storage bottle 5 and the emulsion in the one-way valve 4 run out, the two valve pieces return to their original state, that is, the edges of the valve pieces are reattached to close the outlet end 42 of the one-way valve 4 .

The vacuum pump assembly 3 is used to extract the air in the horn cover 2. The vacuum pump assembly 3 includes: a suction bowl 31, a vacuum pump, an air extraction pipe and a pressure relief valve, a vacuum pump that extracts the air in the suction bowl 31 to make it deformed, and connects the vacuum pump and the suction bowl 31, and the pressure relief valve that makes the suction bowl 31 return to its original state. The outer top of the horn cover 2 is provided with a bowl groove 22 that matches the shape of the suction bowl 31. The bowl groove 22 is provided with an air suction hole that communicates with the inside of the horn cover 2. The outer wall of the suction bowl 31 is provided with a fastener, and the fastener is snapped on The edge of the bowl trough 22 makes the suction bowl 31 pressed and fixed in the bowl trough 22. The outer wall of the suction bowl 31 is also provided with a ring of flanges covering the bowl trough 22, and the bowl trough 22 and the suction force are realized by the flange. The seal between the bowls 31. It should be noted that the groove wall of the bowl groove 22 is also provided with an air guide groove 23 connected to the air suction hole, so as to ensure that the air is not trapped during inhalation and the suction force is stable.

The inner top of the accommodating chamber 11 is provided with an upwardly arched negative pressure chamber 13, and the negative pressure chamber 13 is provided with an air inlet. , There may be gaps in the seams of the top case 1 , and of course, ventilation holes and the like may be designed on the top case 1 . The mouth of the suction bowl 31 opens toward the negative pressure chamber 13 , and the bowl edge of the suction bowl 31 fits in contact with the wall of the negative pressure chamber 13 to realize the sealing between the suction bowl 31 and the negative pressure chamber 13 . When assembling, insert the horn cover 2 into the accommodating cavity 11, push the horn cover 2 until the edge of the suction bowl 31 is in contact with the cavity wall of the negative pressure cavity 13, and the milk outlet 21 is just aligned with the installation port 12 at this time. In order to ensure that the horn cover 2 can be accurately inserted into the accommodating cavity 11, the accommodating cavity 11 is provided with a protruding guide part, and the horn cover 2 is provided with a chute part matching the guide part. , the chute moves linearly along the guide.

When the electric breast pump works, the vacuum pump sucks the air between the suction bowl 31 and the negative pressure chamber 13, and after the deformation of the suction bowl 31, a negative pressure is formed between the bowl groove 22, and the air in the horn cover 2 enters the suction bowl 31 and the bowl groove In the cavity between 22, continue to generate negative pressure inside the horn cover 2, absorb breast milk through the negative pressure, and use the one-way valve 4 to discharge the breast milk into the milk storage bottle 5, prevent breast milk from flowing backward, and realize breast milk absorption and storage. After the vacuum pump exhaust work is completed, the pressure relief valve opens the air inlet, and the air enters the suction bowl 31 and the negative pressure chamber 13, so that the suction bowl 31 returns to its original state, and the negative pressure inside the horn cover 2 disappears. The vacuum pump performs the next pumping work again, and the vacuum pump and the pressure relief valve work alternately during the whole sucking process.

The feeding bottle 5 and the top case 1 are arranged side by side behind the horn cover 2 up and down, the top surface of the feeding bottle 5 is attached to the bottom surface of the top case 1, and the front side of the feeding bottle 5 is attached to the back side of the horn cover 2 to achieve the largest volume change. The top shell 1 is composed of an inner shell with an accommodating cavity, a face shell covering the back of the inner shell, and a bottom shell closing the opening between the inner shell and the face shell. The assembly 3 is used to extract the air in the horn cover 2, and the components of the vacuum pump assembly 3 except the suction bowl 31 are all installed in the cavity of the main engine. The host cavity is equipped with a bracket for installing the vacuum pump. The vacuum pump is wrapped in the bracket. The bracket is made of TPE soft material to achieve shock absorption of moving parts. The fixing method between the bracket and the host cavity is not limited, and can be fixed by screws or hot melt. The host chamber of the present utility model is also equipped with a control board electrically connected to the vacuum pump assembly 3, a battery for powering the control board, and a charging socket connected to the battery. Insert the charging socket from the gap to charge the battery. The top of the cover is provided with a switch connected to the control board. The switch is located on the top of the cover. The operating switch can control the working state of the electric breast pump.

The detachable structure of the milk storage bottle in the present invention has two implementations, and the one-way valve also has a corresponding installation structure in the two implementations, which will be described in detail below.

As shown in Figures 2 to 4, in the first embodiment, the top surface of the feeding bottle 5 is provided with an upwardly protruding milk inlet 51, the milk inlet 51 is covered with an adapter cover 6, and the outlet end of the one-way valve 4 42 passes through the adapter cover 6 and extends into the milk bottle 5. A turn-over portion 43 is provided in the middle of the one-way valve 4. The top surface of the transfer cover 6 is provided with a limit portion 61 that is inserted into the turn-over portion 43 upwards. The one-way valve 4 is installed on the adapter cover 6 by inserting the folded portion 43 and the limiting portion 61 . The bottom surface of the top case 1 is provided with a recessed portion 14 for accommodating the adapter cover 6 , the adapter cover 6 is detachably installed in the recessed portion 14 , and the installation opening 12 is provided on the recessed portion 14 . Specifically, a pair of lugs 62 are provided on both sides of the adapter cover 6, and the elastic snap ring 7 supported under the pair of lugs 62 and positioned in the recess 14 is provided with the elastic snap ring 7 to match the pair of lugs. A pair of supporting portions where the lugs 62 are matched, that is, the lugs 62 of the adapter cover 6 are placed on the corresponding supporting portions, and the adapter cover 6 cannot escape from the recessed portion 14 by the pair of supporting portions. The elastic snap ring 7 is provided with a key, and the top case 1 is provided with a key hole 15 for exposing the key. Press the key to deform the elastic snap ring 7 to adjust the distance between the pair of supports. When the button is pressed during disassembly, the distance between the pair of supports Increase, so that the adapter cover 6 is separated from the recessed part 14. When assembling, first press the button to insert the adapter cover 6, and then release the button to complete the connection between the adapter cover 6 and the recessed part 14.

Further, the inner wall of the milk inlet 51 is provided with buckles 52, and the outer wall of the adapter cover 6 is provided with buckle positions 63 that are mated with the buckles 52, and turning the adapter cover 6 allows the buckles 52 to slide into the buckles. Bit 63, to install the adapter cover 6 on the milk inlet 52. In this embodiment, the feeding bottle 5, the transfer cover 6 and the one-way valve 4 can be disassembled from the top shell 1 as a whole by pressing the button, and the operation is simple and convenient. The feeding bottle 5, the transfer cover 6 and the The one-way valve 4 can be disassembled separately, which facilitates the cleaning of spare parts. The buckle presented herein is in the shape of a slot with one side opening, and the buckle 52 can slide into or out of the slot from the opening of the slot.

As shown in Figures 5 to 6, in the second embodiment, the top surface of the milk storage bottle 5 is provided with an upwardly protruding milk inlet 51, the one-way valve 4 is fixed in the installation port 12, and the bottom surface of the top shell 1 is provided with There is a recessed portion 14 for accommodating a milk inlet 51 , and the milk inlet 51 is detachably installed in the recessed portion 14 . The inner wall of the milk inlet 51 is provided with buckles 52, and the top surface of the recess 14 is provided with a hook 16 extending downward into the milk inlet 51, and one side of the hook 16 is provided with a buckle mated with the buckle 52. Position, turning the milk storage bottle 5 can make the buckle 52 slide out of the buckle position, so that the milk storage bottle 5 can escape from the recessed part 14 .

Further, in the second embodiment, the middle part of the one-way valve 4 is provided with a circular platform 44, and the surroundings of the circular platform 44 are provided with protrusions 45, and the inlet end 41 of the one-way valve 4 extends into the accommodating cavity 11, and the accommodating cavity 11 is provided with A supporting portion that matches the shape of the inlet end 41 of the one-way valve 4 . Top shell 1 is made of the inner shell with accommodating cavity 11, the face shell that covers the back of the inner shell, and the bottom shell that closes the opening between the inner shell and the face shell. The aperture of the hole is matched with the outer diameter of the round platform 44 with clearance, and there is a gap 17 for placing the protrusion 45 around the mounting hole, and the check valve 4 is clamped and fixed between the inner shell and the bottom shell. In this embodiment, the milk storage bottle 5 can be disassembled from the top shell 1 by rotating the milk storage bottle 5 , which has a simple structure and few spare parts.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims

An electric breast pump, comprising: a top shell with one side inwardly recessed to form an accommodating cavity; The vacuum pump assembly for the air in the horn cover, and the milk storage bottle detachably installed on the bottom surface of the top shell; it is characterized in that, the bottom of the accommodating cavity is provided with an installation opening through to the bottom surface of the top shell, and the horn cover extends One end extending into the accommodating cavity forms an extension, the extension is provided with a milk outlet aligned with the installation port, a one-way valve is arranged in the installation port, and the inlet end of the one-way valve is connected to the The milk outlet is sealed and abutted, and the outlet end extends into the milk storage bottle.
The electric breast pump according to claim 1, wherein the vacuum pump assembly comprises: a suction bowl, a vacuum pump for sucking air in the suction bowl to deform it, and a vacuum pump for connecting the vacuum pump and the suction bowl. suction pipe, and pressure relief valve to restore said suction bowl;

The outer top of the horn cover is provided with a bowl groove that matches the shape of the suction bowl, and the bowl groove is provided with an air suction hole that communicates with the inside of the horn cover, and the suction bowl is pressed on the bowl by a fastener In the groove, and the outer wall of the suction bowl is provided with a ring of flanges wrapped around the bowl groove;

The inner top of the accommodating chamber is provided with an upwardly arched negative pressure chamber, the mouth of the suction bowl opens toward the negative pressure chamber, and the edge of the suction bowl fits in contact with the negative pressure chamber cavity wall.
The electric breast pump according to claim 2, wherein a rubber bracket for installing the vacuum pump is arranged inside the top shell, and the vacuum pump is wrapped in the rubber bracket.
The electric breast pump according to claim 1, wherein the top surface of the milk storage bottle is provided with an upwardly protruding milk inlet, the milk inlet is covered with an adapter cover, and the one-way valve is installed On the transfer cover and the outlet end passes through the transfer cover and extends into the milk inlet, the bottom surface of the top shell is provided with a recess for accommodating the transfer cover, and the transfer cover can be It is disassembled and installed in the recessed part.
The electric breast pump according to claim 4, characterized in that a pair of lugs are provided on both sides of the transfer cover, and the elastic clips supported under the pair of lugs and positioned in the recessed portion ring, the elastic snap ring is provided with a pair of supporting parts matching the positions of the pair of lugs;

The elastic snap ring is provided with a button, and the top shell is provided with a key hole for exposing the button. Pressing the elastic snap ring can adjust the distance between the pair of supporting parts, so that the transfer cover is separated from the Depression.
The electric breast pump according to claim 5, wherein the inner wall of the milk inlet is provided with buckles, and the outer wall of the adapter cover is provided with a buckle that is mated with the buckle , turning the adapter cover can make the buckle slide into the buckle position, so as to install the adapter cover on the milk inlet.
The electric breast pump according to claim 1, wherein the top surface of the milk storage bottle is provided with an upwardly protruding milk inlet, the one-way valve is fixed in the installation port, and the top shell The bottom surface of the bottom surface is provided with a recessed part for accommodating the milk inlet, and the milk inlet is detachably installed in the recessed part.
The electric breast pump according to claim 7, wherein the inner wall of the milk inlet is provided with buckles, and the top surface of the concave part is provided with a hook extending downward into the milk inlet, One side of the hook is provided with a buckle mated with the buckle, and the buckle can be slid out of the buckle by turning the milk storage bottle, so that the milk storage bottle is detached from the recess.
The electric breast pump according to claim 7, wherein a round platform is arranged in the middle of the one-way valve, and protrusions are arranged around the round platform;

The top case is composed of an inner case having the accommodating cavity, a face case covering the back of the inner case, and a bottom case closing the opening between the inner case and the face case, and the one-way valve The inlet end of the inlet protrudes into the accommodating chamber, the accommodating chamber is provided with a support portion matching the shape of the inlet end of the one-way valve, and the bottom shell is provided with a mounting hole for accommodating the round platform, A notch for placing the protrusion is provided around the installation hole, and the one-way valve is clamped and fixed between the inner shell and the bottom shell.
The electric breast pump according to any one of claims 1 to 9, characterized in that, the milk storage bottle and the top shell are arranged side by side up and down behind the horn cover, and the top surface of the milk storage bottle is in line with the top shell. The bottom surface of the top shell is bonded, and the front side of the milk storage bottle is bonded to the back of the horn cover.