Breast pump connection structure and breast pump with it

Abstract

This utility model discloses a breast pump connecting structure and a breast pump having the same, relating to the field of breast pump technology. It includes: a three-way connector with a front connecting tube on its front side, the front connecting tube having a first through hole; and a breast pump, comprising a front flared shield, a rear suction tube, and an outer annular ring, the suction tube having a suction hole, an annular insertion groove formed between the inner wall of the outer annular ring and the outer wall of the suction tube, the front end of the front connecting tube being inserted into the annular insertion groove. After the breast pump and the three-way connector are connected, the flared shield does not require a rigid plastic cover for support when fitting the breast, allowing the flared shield to more easily conform to the breast. The front connecting tube, through the breast pump, presses against the areola of the breast, allowing the nipple to be more fully subjected to negative pressure suction, thus ensuring better milk extraction.

Description

Technical Field

[0001] This utility model relates to the field of breast pump technology, and in particular to a breast pump shield connection structure and a breast pump having the same. Background Technology

[0002] Breast pumps are used to express breast milk accumulated in the mammary glands. They typically use a vacuum pump to alternately change the internal air pressure, simulating a "suction-extraction" action to draw milk from the breast. After passing through a three-way connector, the milk enters the breast pump and is finally stored in a bottle. The breast shield needs to be in contact with the breast for extended periods, so the connection between the breast shield and the three-way connector needs to be designed as a detachable structure for easy cleaning.

[0003] Commonly used breast pump structures consist of silicone breast pads and a rigid plastic outer sleeve. The silicone breast pads conform to the breast, and the rigid plastic sleeve supports the silicone breast pads. This structure is not only difficult to clean, but also prone to causing the silicone breast pads to not fit properly against the breast due to the rigid plastic sleeve during actual use. This can lead to air leakage at the contact point between the breast pump and the breast, directly affecting the pumping effect. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a breast pump connection structure and a breast pump having the same.

[0005] According to a first aspect of the present invention, a breast pump connection structure includes: a three-way connector having a cavity, a front connecting tube having a first through hole on the front side of the three-way connector; and a breast pump connected to the front side of the three-way connector, the breast pump including a front horn cover, a rear breast pump tube, and an outer annular ring, the breast pump tube having a breast pump hole communicating with the first through hole, the front end of the outer annular ring being connected to the outer wall of the junction between the horn cover and the breast pump tube, an annular insertion groove being formed between the inner wall of the outer annular ring and the outer wall of the breast pump tube, the front end of the front connecting tube being inserted into the annular insertion groove, and milk being able to pass sequentially through the breast pump hole and the first through hole into the three-way connector.

[0006] According to some embodiments of the present invention, the milk suction tube includes an arc-shaped section on the front side and a straight section on the rear side. The front end of the arc-shaped section is connected to the rear end of the horn cover, and the straight section is inserted into the first through hole.

[0007] According to some embodiments of the present invention, the outer wall of the arc segment has a concave arc surface, and the inner wall of the front end of the front connecting pipe is provided with a front connecting pipe arc surface, and the front connecting pipe arc surface is in contact with the concave arc surface.

[0008] According to some embodiments of the present invention, the outer wall of the straight segment is fitted with the inner wall of the front connecting pipe, and the outer wall of the outer annular ring is fitted with the outer wall of the front connecting pipe.

[0009] According to some embodiments of this utility model, the three-way connector has a bottom surface on its lower side, a milk storage container is provided on the lower side of the three-way connector, the bottom surface of the three-way connector has a second through hole, and a one-way valve is provided on the lower side of the second through hole, so that milk can pass through the one-way valve and enter the milk storage container.

[0010] According to some embodiments of the present invention, a flow guiding slope is provided on the inner wall surface of the three-way component. The flow guiding slope is located on the rear side of the bottom surface of the three-way component. The flow guiding slope is inclined from the upper rear side to the lower front side. The flow guiding slope can guide the milk on the rear wall surface of the three-way component into the second through hole.

[0011] According to some embodiments of the present invention, an anti-backflow surface is provided on the inner wall surface of the tee fitting. The anti-backflow surface is located on the front side of the bottom of the tee fitting. The upper end of the anti-backflow surface is connected to the lower side of the rear end of the front connecting pipe, and the lower end of the anti-backflow surface is connected to the front end of the bottom of the tee fitting.

[0012] The breast pump connection structure according to the embodiment of this utility model has at least the following technical effects:

[0013] 1. After the breast shield is connected to the three-way connector, the flared shield does not need a hard plastic cover for support when it fits the breast, making it easier for the flared shield to fit the breast. The front connecting tube presses against the areola of the breast through the breast shield, so that the nipple can be fully subjected to negative pressure suction, which can better ensure the milk expression effect.

[0014] 2. After the milk is sprayed onto the rear wall of the tee, the guide slope can guide the milk to flow into the second through hole, avoiding milk from staying in the inner cavity of the tee for a long time and causing pollution.

[0015] 3. When milk enters the tee and flows to the anti-backflow surface, the anti-backflow surface can act as an anti-backflow structure to prevent milk from flowing back out.

[0016] The breast pump according to a second aspect of the present invention includes a breast shield connection structure according to the first aspect of the present invention described above.

[0017] According to some embodiments of this utility model, an air chamber tube is provided on the upper side of the three-way fitting, the air chamber tube has a third through hole, an airbag membrane is provided on the air chamber tube, the airbag membrane covers the third through hole, a membrane edge is provided on the edge of the airbag membrane, the lower side of the membrane edge is fitted and connected to the upper end of the air chamber tube, an airbag cover is provided on the airbag membrane, an airbag cover edge is provided on the edge of the airbag cover, the airbag cover edge is fitted and connected to the upper side of the membrane edge, and an airbag cavity is left between the upper side of the airbag membrane and the lower side of the airbag cover.

[0018] According to some embodiments of the present invention, an air chamber tube retainer is provided on the outer side wall of the upper end of the air chamber tube, the edge of the membrane is bent downward to form a membrane edge groove and a membrane retainer, the membrane retainer is located at the lower end of the inner side wall of the membrane edge groove, the air chamber tube retainer is inserted into the membrane edge groove, and the upper side of the membrane retainer is engaged with the lower side of the air chamber tube retainer.

[0019] According to some embodiments of this utility model, the lower end of the three-way connector is provided with a bottle connecting ring and a second through hole. The second through hole is located inside the bottle connecting ring. A one-way valve is provided below the second through hole. A bottle is provided below the three-way connector. The bottle has a milk storage container. The upper end of the bottle has a bottle mouth. The outer wall of the upper end of the bottle is threadedly connected to the inner wall of the bottle connecting ring. Milk can pass through the one-way valve and the bottle mouth into the milk storage container.

[0020] The breast pump according to the embodiments of this utility model has at least the following beneficial effects:

[0021] 1. After the breast shield is connected to the three-way connector, the flared shield does not need a hard plastic cover for support when it fits the breast, making it easier for the flared shield to fit the breast. The front connecting tube presses against the areola of the breast through the breast shield, so that the nipple can be fully subjected to negative pressure suction, which can better ensure the milk expression effect of the breast pump.

[0022] 2. When installing the airbag assembly, first install the airbag membrane, connecting the edge of the membrane to the upper end of the air chamber tube. Then install the airbag cover, pressing the edge of the airbag cover against the edge of the membrane. This ensures that the airbag assembly is installed securely, especially ensuring that there is no air leakage between the edge of the airbag membrane and the edge of the air chamber tube, which would affect the milk suction effect.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] Additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a perspective view of the present invention;

[0026] Figure 2 This is a three-dimensional sectional view of the present invention;

[0027] Figure 3 This is an exploded view of the structure of this utility model;

[0028] Figure 4 This is an exploded view of the structure of this utility model from another angle;

[0029] Figure 5 This is a schematic diagram of the structure of this utility model;

[0030] Figure 6 yes Figure 5 Enlarged view of region A in the middle;

[0031] Figure 7 This is a three-dimensional sectional view of the tee fitting in this utility model;

[0032] Figure 8 This is a three-dimensional sectional view of the breast pump in this utility model;

[0033] Figure 9 This is a three-dimensional sectional view of the airbag assembly in this utility model.

[0034] Figure label:

[0035] 100 T-joint, 110 front connecting pipe, 111 first through hole, 112 arc-shaped surface of front connecting pipe, 120 bottom surface of 120 t-joint, 121 second through hole, 130 guide slope, 140 anti-backflow surface, 141 convex arc surface of anti-backflow surface, 150 air chamber pipe, 151 third through hole, 152 air chamber pipe retaining edge, 153 top cover fixing protrusion, 154 top cover fixing recess, 160 bottle connecting ring; 200 breast suction cover, 210 horn cover, 211 reinforcing rib of horn cover, 220 breast suction tube. 221. Arc segment 222. Straight segment 223. Concave arc surface 224. Outer annular ring 230. Milk suction hole 240. Annular insertion groove 250. One-way valve 300. Milk storage container 400. Airbag assembly 500. Airbag membrane 510. Membrane edge 511. Membrane edge groove 512. Membrane clamping edge 513. Airbag cover 520. Airbag cover edge 521. Airbag cover positioning post 522. Air inlet 523. Airbag cavity 530. Top cover 540. Positioning insertion hole 541. Top cover clamping protrusion 542. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "multiple" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] The following is for reference. Figure 1 and Figure 2 The connection structure of the breast pump according to an embodiment of the present utility model is described.

[0041] like Figure 1 and Figure 2 As shown, the breast pump connection structure according to an embodiment of the present invention includes a three-way connector 100 and a breast pump 200.

[0042] Reference Figure 3 , Figure 4The three-way connector 100 has a cavity, and a front connecting pipe 110 is provided on the front side of the three-way connector 100. The front connecting pipe 110 has a first through hole 111. The breast pump 200 is connected to the front side of the three-way connector 100. The breast pump 200 includes a front horn cover 210, a rear breast pump tube 220 and an outer annular ring 230. The breast pump tube 220 has a breast pump hole 240, which communicates with the first through hole 111. The front end of the outer annular ring 230 is connected to the outer wall of the junction between the horn cover 210 and the breast pump tube 220. An annular insertion groove 250 is formed between the inner wall of the outer annular ring 230 and the outer wall of the breast pump tube 220. The front end of the front connecting pipe 110 is inserted into the annular insertion groove 250. Milk can pass through the breast pump hole 240 and the first through hole 111 in sequence and enter the three-way connector 100.

[0043] For example, such as Figure 1 and Figure 2 As shown, the tee fitting 100 has a cavity. A front connecting pipe 110 is provided on the front side of the tee fitting 100, and the front connecting pipe 110 has a first through hole 111. (Refer to...) Figure 3 , Figure 4 The breast pump 200 is connected to the front of the three-way connector 100, and the breast pump 200 and the three-way connector 100 are detachably connected. The breast pump 200 includes a front flared cover 210, a rear breast pump tube 220, and an outer annular ring 230. The breast pump tube 220 has a breast pump hole 240, which communicates with the first through hole 111. The front end of the outer annular ring 230 is connected to the outer wall of the junction between the flared cover 210 and the breast pump tube 220. An annular insertion groove 250 is formed between the inner wall of the outer annular ring 230 and the outer wall of the breast pump tube 220. The front end of the front connecting tube 110 is inserted into the annular insertion groove 250. Milk can pass through the breast pump hole 240 and the first through hole 111 sequentially into the three-way connector 100.

[0044] In practical use, refer to Figure 5 , Figure 6 Connect the breast pump 200 to the three-way connector 100, and also connect the vacuum pump to the three-way connector 100. During breast pumping, the vent 210 is used to fit the woman's breast, and the vacuum pump alternately changes the air pressure inside the three-way connector 100 to simulate an alternating "suction-expulsion" action to draw milk from the breast. The milk enters the three-way connector 100 after passing through the suction hole 240 of the breast pump 200 and the first through hole 111 of the three-way connector 100, achieving the breast pumping effect.

[0045] The front connecting tube 110 of the three-way connector 100 is inserted into the annular insertion groove 250 of the breast pump 200, which is sufficient to ensure a stable connection of the breast pump 200. During the aforementioned milk expression process, the flared cover 210 does not require a rigid plastic cover for support when it is in contact with the breast. The flared cover 210 can more flexibly adapt to the breast to achieve a closer fit. At the same time, the front connecting tube 110, through the breast pump 200, presses against the areola of the breast, allowing the nipple to be more fully subjected to negative pressure suction, thus ensuring better milk expression results.

[0046] In some embodiments of this utility model, reference is made to Figure 6 , Figure 8 The breast pump tube 220 includes a front arc-shaped section 221 and a rear straight section 222. The front end of the arc-shaped section 221 is connected to the rear end of the breast shield 210, and the straight section 222 is inserted into the first through hole 111. In this way, when the breast shield 210 is in contact with the breast, the arc-shaped section 221 presses against the areola, which not only makes it more comfortable for the user, but also makes it less likely for the front connecting tube 110 to puncture the breast shield 200.

[0047] The outer annular ring 230 is composed of two parts: an arc-shaped segment 221 and a straight segment 222, ensuring the integrity and stability of the structure. The straight segment 222 is firmly embedded into the first through hole 111 by plugging, which is sufficient to ensure a tight fit between the components.

[0048] When the breast shield 210 fits snugly against the user's breast, the curved section 221 rests precisely against the areola. This design not only makes the user feel more comfortable during use and avoids discomfort, but also effectively prevents the front connecting tube 110 from accidentally puncturing the breast shield 200 during breast pumping. This design comprehensively considers user comfort and product safety, greatly enhancing the overall user experience.

[0049] In some embodiments of this utility model, reference is made to Figure 6 , Figure 7 The outer wall of the arc segment 221 has a concave arc surface 223, and the inner wall of the front end of the front connecting tube 110 is provided with a front connecting tube arc surface 112. The front connecting tube arc surface 112 fits with the concave arc surface 223, making the front connecting tube 110 more stable after being inserted into the annular insertion groove 250, and also making the front end of the front connecting tube 110 less likely to wear through the breast pump cover 200 due to loosening and friction.

[0050] The concave arc surface 223 on the outer wall of the arc-shaped section 221 serves as a transition structure between the horn cover 210 and the milk suction tube 220. After the front connecting tube 110 is inserted into the annular insertion groove 250, the arc-shaped surface 112 and the concave arc surface 223 of the front connecting tube fit tightly together, forming a more secure fit. This fit design not only makes the overall structure of the front connecting tube 110 more stable and less prone to displacement after insertion into the annular insertion groove 250, but also significantly reduces the friction caused by loosening at the front end of the front connecting tube 110. This prevents the front end of the front connecting tube 110 from gradually wearing down due to frequent friction, thus avoiding the eventual wear and tear of the milk suction cover 200. This effectively extends the service life of the equipment and improves its safety and reliability.

[0051] In some embodiments of this utility model, the horn cover 210 is made of soft silicone, while the milk suction tube 220 is a rigid tube structure, specifically made of rigid plastic injection molding or rigid silicone, which can ensure a more stable connection between the milk suction tube 220 and the front connecting tube 110.

[0052] In some embodiments of this utility model, the outer wall of the straight segment 222 is fitted with the inner wall of the front connecting tube 110, and the outer wall of the outer annular ring 230 is fitted with the outer wall of the front connecting tube 110, ensuring that there is sufficient friction between the tee 100 and the breast pump 200 to ensure a stable connection.

[0053] In some embodiments of this utility model, reference is made to Figure 5 The rear edge of the horn cover 210 is provided with a horn cover reinforcing rib 211. The horn cover reinforcing rib 211 can strengthen the rear edge of the horn cover 210 and prevent the edge of the horn cover 210 from wrinkling after long-term use, which would cause air leakage during milk expression.

[0054] In some embodiments of this utility model, reference is made to Figure 7 The three-way connector 100 has a bottom surface 120 on its lower side, and a milk storage container 400 is disposed on the lower side of the three-way connector 100. The bottom surface 120 of the three-way connector has a second through hole 121, and a one-way valve 300 is disposed below the second through hole 121, through which milk can pass into the milk storage container 400. That is, during the milk expression process, the milk enters the three-way connector 100 after passing through the milk expression hole 240 of the breast pump 200 and the first through hole 111 of the three-way connector 100, and then flows into the milk storage container 400 through the one-way valve 300.

[0055] It must be noted that the milk storage container 400 can be a structure that is fixedly connected to the tee fitting 100, or it can be a detachable container structure.

[0056] In some embodiments of this utility model, the bottom surface 120 of the tee can be a horizontal surface or a concave arc surface that is recessed downwards.

[0057] In some embodiments of this utility model, reference is made to Figure 6 , Figure 7 A guide slope 130 is provided on the inner wall of the three-way connector 100. The guide slope 130 is located behind the bottom surface 120 of the three-way connector and slopes from the upper rear to the lower front. The guide slope 130 can guide milk on the rear wall of the three-way connector 100 into the second through hole 121. During milk expression, milk is often sprayed onto the rear wall of the three-way connector 100 in a jet-like manner under negative pressure, and then flows downward under gravity. The guide slope 130 can then guide the milk to flow into the second through hole 121 in a concentrated manner, so as not to remain in the three-way connector 100 and cause contamination.

[0058] In some embodiments of this utility model, concave arc surfaces are provided on the left and right sides of the guide slope 130, and the concave arc surfaces cooperate with the guide slope 130 to guide the milk to flow into the second through hole 121.

[0059] In some embodiments of this utility model, an anti-backflow surface 140 is provided on the inner wall of the tee fitting 100. The anti-backflow surface 140 is located on the front side of the bottom surface 120 of the tee fitting. The upper end of the anti-backflow surface 140 is connected to the lower side of the rear end of the front connecting pipe 110, and the lower end of the anti-backflow surface 140 is connected to the front end of the bottom surface 120 of the tee fitting. This is equivalent to the anti-backflow surface 140 forming a stepped structure with the lower side of the first through hole 111 on the front side and the bottom surface 120 of the tee fitting on the rear side, which can prevent milk from flowing back out of the front connecting pipe 110. Some of the milk flowing into the tee fitting 100 will flow down the lower side of the first through hole 111 under the action of gravity to the anti-backflow surface 140, and the design of the anti-backflow surface 140 can prevent milk from flowing back out.

[0060] In some embodiments of this utility model, the anti-backflow surface 140 has an anti-backflow convex arc surface 141. This convex arc surface design can prevent milk from sticking to the surface of the anti-backflow surface 140 and causing contamination.

[0061] The breast pump according to the second aspect of the present invention includes the breast shield connection structure according to the first aspect of the present invention. That is, the breast shield connection structure of the present invention is suitable for use with various breast pump devices, including manual breast pumps, external vacuum pump type electric breast pumps, wearable electric breast pumps, etc.

[0062] In some embodiments of this utility model, reference is made to Figure 5A three-way fitting 100 has an air chamber tube 150 on its upper side. The air chamber tube 150 has a third through hole 151. An air bladder membrane 510 is provided on the air chamber tube 150. The air bladder membrane 510 covers the third through hole 151. A membrane edge 511 is provided on the edge of the air bladder membrane 510. The lower side of the membrane edge 511 is attached to the upper end of the air chamber tube 150. An air bladder cover 520 is provided on the air bladder membrane 510. An air bladder cover edge 521 is provided on the edge of the air bladder cover 520. The air bladder cover edge 521 is attached to the upper side of the membrane edge 511. An air bladder cavity 530 is left between the upper side of the air bladder membrane 510 and the lower side of the air bladder cover 520. The air bladder cover edge 521 is connected to a vacuum pump.

[0063] The airbag membrane 510 and the airbag cover 520 are used together to form the airbag assembly 500. The airbag membrane 510 is installed first, and the membrane edge 511 of the airbag membrane 510 is connected to the upper end of the air chamber tube 150. Then the airbag cover 520 is installed, and the airbag cover edge 521 of the airbag cover 520 presses against the membrane edge 511 to ensure that the airbag assembly 500 is installed firmly. In particular, it ensures that there will be no air leakage between the edge of the airbag membrane 510 and the edge of the air chamber tube 150 when the airbag assembly 500 is working.

[0064] When the airbag membrane 510 works in conjunction with the vacuum pump device, the vacuum pump device begins to operate intermittently, causing the airbag membrane 510 to fluctuate regularly. This, in turn, causes the volume of the airbag cavity 530 to change intermittently, generating intermittent negative pressure. This is equivalent to the gas inside the three-way connector 100 being partially drawn out through the second through-hole 121, mimicking the action of an infant sucking at a breast, thus drawing out milk. The milk drawn out and flows through the three-way connector 100 into the milk storage container 400 for collection.

[0065] In some embodiments of this utility model, the airbag membrane 510 is made of silicone, and the airbag cover 520 is made of hard plastic.

[0066] In some embodiments of this utility model, an air inlet 523 is provided on the airbag cover 520, and the air inlet 523 is connected to a vacuum pump device via an air pipe.

[0067] In some embodiments of this utility model, reference is made to Figure 9An air chamber tube retainer 152 is provided on the outer wall of the upper end of the air chamber tube 150. The edge of the membrane component 511 is bent downward to form a membrane component groove 512 and a membrane component retainer 513. The membrane component retainer 513 is located at the lower end of the inner wall of the membrane component groove 512. The air chamber tube retainer 152 is inserted into the membrane component groove 512, and the upper side of the membrane component retainer 513 locks the lower side of the air chamber tube retainer 152. In specific installation, the airbag membrane component 510 is installed first, so that the air chamber tube retainer 152 at the upper end of the air chamber tube 150 is inserted into the membrane component groove 512 where the airbag membrane component 510 is installed, and then the airbag cover 520 is installed. This design can ensure that the edge of the airbag membrane component 510 is tightly connected to the upper edge of the air chamber tube 150, avoiding air leakage between the edge of the airbag membrane component 510 and the edge of the air chamber tube 150 when the airbag assembly 500 is working, which would affect the milk suction effect.

[0068] In some embodiments of this utility model, the airbag cover 520 is provided with a top cover 540, which can protect the airbag assembly 500. Moreover, the top cover 540 can be flexibly replaced according to the appearance design needs of the breast pump without affecting the standardized production design of the airbag membrane 510 and the airbag cover 520.

[0069] In some embodiments of this utility model, a top cover fixing protrusion 153 is provided on the outer wall of the air chamber tube 150, a top cover fixing recess 154 is provided on the top cover fixing protrusion 153, and a top cover snap-fit ​​protrusion 542 is provided on the upper side of the top cover 540. When the top cover 540 is closed on the airbag cover 520, the top cover snap-fit ​​protrusion 542 of the top cover 540 snaps into the top cover fixing recess 154 of the air chamber tube 150, ensuring that the top cover 540 is securely connected.

[0070] In some embodiments of this utility model, an airbag cover positioning post 522 is provided on the airbag cover 520, and a positioning insertion hole 541 is provided on the lower side of the top cover 540. When the top cover 540 is closed on the airbag cover 520, the airbag cover positioning post 522 of the airbag cover 520 is engaged with the positioning insertion hole 541 of the top cover 540, ensuring that the top cover 540 and the airbag cover 520 are firmly connected.

[0071] In some embodiments of this utility model, the milk storage container 400 adopts a detachable baby bottle structure with an upper bottle opening. A bottle connecting ring 160 is provided on the lower side of the three-way fitting 100, and a second through hole 121 is located inside the bottle connecting ring 160. The outer / inner sidewall of the upper bottle opening is connected to the bottle connecting ring 160 by threads.

[0072] The breast pump according to the present invention reduces the steps of splicing the breast pump by adopting the above-mentioned breast shield connection structure, which facilitates the simplified design of the breast pump and can improve the milk pumping effect and enhance the user experience.

[0073] Other components and operations of the breast pump according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0074] The following is for reference. Figure 1 and Figure 2 The connection structure of the breast pump according to an embodiment of the present invention is described in detail with reference to a specific example. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0075] like Figure 1 and Figure 2 As shown, the breast pump connection structure of this utility model embodiment includes a three-way connector 100, a breast pump 200, a one-way valve 300, a milk storage container 400, and an airbag assembly 500.

[0076] The tee fitting 100 includes a front connecting pipe 110, a first through hole 111, a front connecting pipe arc surface 112, a tee fitting bottom surface 120, a second through hole 121, a guide slope 130, an anti-backflow surface 140, an anti-backflow convex arc surface 141, an air chamber pipe 150, a third through hole 151, an air chamber pipe retaining edge 152, a top cover fixing protrusion 153, a top cover fixing recess 154, and a bottle connecting ring 160.

[0077] The breast pump cover 200 is connected to the first through hole 111. The breast pump cover 200 includes a flared cover 210, a flared cover reinforcing rib 211, a milk suction tube 220, an arc-shaped section 221, a straight section 222, a concave arc surface 223, an outer annular ring 230, a milk suction hole 240, and an annular insertion groove 250. The one-way valve 300 is connected to the second through hole 121. The milk storage container 400 is connected to the bottle connecting ring 160.

[0078] The airbag assembly 500 is connected to the third through hole 151. The airbag assembly 500 includes an airbag membrane 510, a membrane edge 511, a membrane edge groove 512, a membrane retaining edge 513, an airbag cover 520, an airbag cover edge 521, an airbag cover positioning post 522, an air inlet 523, an airbag cavity 530, a top cover 540, a positioning insertion hole 541, and a top cover retaining protrusion 542.

[0079] According to the breast pump connection structure of this utility model embodiment, by setting it up in this way, at least the following effects can be achieved: after the breast pump 200 is connected to the three-way connector 100, the flared cover 210 does not need a hard plastic cover for support when it fits the breast, so that the flared cover 210 can fit the breast more easily. The front connecting tube 110 presses against the areola of the breast through the breast pump 200, so that the nipple can be fully subjected to negative pressure suction, and the milk pumping effect can be better guaranteed.

[0080] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A breast pump connection structure, characterized in that, include: A tee fitting (100) has a cavity, and a front connecting pipe (110) is provided on the front side of the tee fitting (100), and the front connecting pipe (110) has a first through hole (111). A breast pump (200) is connected to the front side of the three-way connector (100). The breast pump (200) includes a front horn cover (210), a rear breast pump tube (220), and an outer annular ring (230). The breast pump tube (220) has a breast pump hole (240) that communicates with the first through hole (111). The front end of the outer annular ring (230) is connected to the outer wall of the junction between the horn cover (210) and the breast pump tube (220). An annular insertion groove (250) is formed between the inner wall of the outer annular ring (230) and the outer wall of the breast pump tube (220). The front end of the front connecting tube (110) is inserted into the annular insertion groove (250). Milk can pass through the breast pump hole (240) and the first through hole (111) in sequence and enter the three-way connector (100).

2. The breast pump connection structure according to claim 1, characterized in that, The milk suction tube (220) includes an arc-shaped section (221) on the front side and a straight section (222) on the rear side. The front end of the arc-shaped section (221) is connected to the rear end of the horn cover (210), and the straight section (222) is inserted into the first through hole (111).

3. The breast pump connection structure according to claim 2, characterized in that, The outer wall of the arc segment (221) has a concave arc surface (223), and the inner wall of the front end of the front connecting pipe (110) is provided with a front connecting pipe arc surface (112), and the front connecting pipe arc surface (112) is in contact with the concave arc surface (223).

4. The breast pump connection structure according to claim 2, characterized in that, The outer wall of the straight segment (222) is fitted with the inner wall of the front connecting pipe (110), and the outer wall of the outer annular ring (230) is fitted with the outer wall of the front connecting pipe (110).

5. The breast pump connection structure according to claim 1, characterized in that, The three-way connector (100) has a bottom surface (120) on its lower side, and a milk storage container (400) is provided on the lower side of the three-way connector (100). The bottom surface (120) of the three-way connector has a second through hole (121), and a one-way valve (300) is provided on the lower side of the second through hole (121). Milk can pass through the one-way valve (300) and enter the milk storage container (400).

6. The breast pump connection structure according to claim 5, characterized in that, A flow guiding slope (130) is provided on the inner wall surface of the three-way fitting (100). The flow guiding slope (130) is located behind the bottom surface (120) of the three-way fitting. The flow guiding slope (130) is inclined from the upper rear side to the lower front side. The flow guiding slope (130) can guide the milk on the rear wall surface of the three-way fitting (100) into the second through hole (121).

7. The breast pump connection structure according to claim 5, characterized in that, The inner wall of the tee fitting (100) is provided with an anti-backflow surface (140). The anti-backflow surface (140) is located in front of the bottom surface (120) of the tee fitting. The upper end of the anti-backflow surface (140) is connected to the lower side of the rear end of the front connecting pipe (110), and the lower end of the anti-backflow surface (140) is connected to the front end of the bottom surface (120) of the tee fitting.

8. A breast pump, characterized in that, Includes the breast pump connection structure according to any one of claims 1 to 7.

9. The breast pump according to claim 8, characterized in that, An air chamber tube (150) is provided on the upper side of the three-way fitting (100). The air chamber tube (150) has a third through hole (151). An airbag membrane (510) is provided on the air chamber tube (150). The airbag membrane (510) covers the third through hole (151). A membrane edge (511) is provided on the edge of the airbag membrane (510). The lower side of the membrane edge (511) is connected to the air chamber tube (150). 0) The upper end is attached and connected. An airbag cover (520) is provided on the airbag membrane (510). An airbag cover edge (521) is provided on the edge of the airbag cover (520). The airbag cover edge (521) is attached and connected to the upper side of the membrane edge (511). An airbag cavity (530) is left between the upper side of the airbag membrane (510) and the lower side of the airbag cover (520). The airbag cover edge (521) is connected to the vacuum pump.

10. The breast pump according to claim 9, characterized in that, An air chamber tube clamp (152) is provided on the outer side wall of the upper end of the air chamber tube (150). The edge of the membrane element (511) is bent downward to form a membrane element groove (512) and a membrane element clamp (513). The membrane element clamp (513) is located at the lower end of the inner side wall of the membrane element groove (512). The air chamber tube clamp (152) is inserted into the membrane element groove (512). The upper side of the membrane element clamp (513) clamps the lower side of the air chamber tube clamp (152).

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