CN221932702U - A breast pump - Google Patents

Abstract

The application discloses a breast pump, which comprises a milk storage device and a bra, wherein the milk storage device comprises a containing part and a protecting cover part, the protecting cover part is integrally connected with the periphery of the containing part, a containing space is further formed between the protecting cover part and the containing part, a holding through hole communicated with the containing space is formed in the protecting cover part, the milk storage device is made of hard plastic materials, the bra is made of soft silica gel materials, a mounting annular groove is formed in the outer side of the bra, the mounting annular groove is suitable for being matched with the holding through hole, and the groove wall of the mounting annular groove is tightly attached to the hole wall of the holding through hole, so that the tightness of the joint of the bra and the milk storage device is ensured. Compared with a split breast pump, the accommodating space is formed by the shield part and the accommodating part which are integrally connected, the shield part and the accommodating part cannot be deformed and separated due to extrusion, the accommodating space has good tightness, and the problem of liquid leakage of emulsion stored in the accommodating space is not easy to occur.

Description

A breast pump

Technical Field

The present application relates to the technical field of maternal and infant products, and in particular to a breast pump.

Background Art

A breast pump is a tool that can be fixed on the breast to squeeze out the breast milk accumulated in the mammary gland. It has good portability and privacy. It is generally suitable for when the baby cannot suck breast milk directly, or when the mother has nipple problems. A breast pump generally includes an air pump and a milk cavity. The air pump generates negative pressure when it works. Under the action of negative pressure, the milk is sucked out and enters and is stored in the milk cavity. The milk cavity of existing breast pumps is mostly composed of a milk storage container and a sealing cover. The sealing cover is sealed on the opening of the milk storage container to form a milk cavity.

For example, the Chinese patent with application number 202320690967.1 (publication number CN219462084U) discloses "A split breast pump", "A split breast pump, including a speaker cover, a milk discharge mechanism and a cup cover, the cup cover is covered on the speaker cover to form a milk storage chamber, the edge of the speaker cover is provided with a bent portion extending toward the cup cover, the end of the bent portion is fixed with a limiting protrusion, a baffle is fixed on the speaker cover, the baffle is located on one side of the bent portion, a mounting convex ring is fixed on the peripheral side of the cup cover, the mounting convex ring is embedded between the baffle and the limiting protrusion, the three adjacent side surfaces of the mounting convex ring are respectively tightly fitted with the baffle, the limiting protrusion and the bent portion, so as to ensure the sealing of the connection between the speaker cover and the cup cover at the edge".

However, during use of the breast pump, the horn cover and the cup cover will inevitably be squeezed and deformed, resulting in the inability of the mounting convex ring on the cup cover to fit tightly with the stop bar, the limiting protrusion and the bent portion, causing the milk stored in the milk storage chamber to leak sideways.

Summary of the invention

One object of the present application is to provide a breast pump to solve the problem that the milk stored in the milk storage cavity is prone to leakage during the milk pumping process.

To achieve the above objectives, the technical solution adopted in the present application is: a breast pump, comprising a milk storage device and a brassiere, the milk storage device comprising a containing portion and a shield portion, the shield portion being integrally connected to the periphery of the containing portion, thereby forming a accommodating space between the shield portion and the containing portion, the shield portion being provided with a retaining through hole communicating with the accommodating space, the brassiere being suitable for cooperating with the retaining through hole so as to place the brassiere on the milk storage device.

Preferably, the bra comprises a fitting portion that fits the breast and a nipple portion for placing the nipple, the fitting portion is trumpet-shaped, an end with a smaller diameter of the fitting portion is connected to the nipple portion, and the maximum diameter of the fitting portion is not less than the diameter of the retaining through hole.

As another preferred embodiment, the bra is provided with a mounting ring groove, and the mounting ring groove is suitable for interference fit with the retaining through hole, so that the hole wall of the retaining through hole is arranged in the mounting ring groove, and the groove wall of the mounting ring groove is tightly fitted with the hole wall of the retaining through hole; or, the hole wall of the retaining through hole is provided with a mounting ring groove, and the bra is provided with a mounting convex ring that cooperates with the mounting ring groove, and the mounting convex ring is suitable for interference fit with the mounting ring groove, so that the groove wall of the mounting ring groove is tightly fitted with the mounting convex ring.

Further preferably, the edge of the retaining through hole is provided with a matching portion extending outward.

Furthermore, a positioning protrusion is provided on the matching portion.

Furthermore, the fitting portion is made of a soft silicone material, and the nipple portion is made of a hard plastic material; or, both the fitting portion and the nipple portion are made of a soft silicone material.

Furthermore, a milk outlet and a milk outlet pipe are provided on a side wall of the nipple portion away from one end of the fitting portion, the milk outlet pipe corresponds to the position of the milk outlet, and the milk outlet pipe connects the nipple portion and the accommodating space.

Furthermore, a one-way valve is arranged on the milk outlet pipe, and the one-way valve is suitable for preventing the milk in the accommodating space from flowing into the nipple portion through the milk outlet pipe.

Furthermore, a pouring spout is provided on the top of the containing portion.

Furthermore, a mounting portion is provided at one end of the nipple portion close to the containing portion, a vent hole connected to the nipple portion is provided on the mounting portion, a connecting tube is provided on the inner wall of the containing portion, an air cushion is provided between the mounting portion and the connecting tube, two ends of the air cushion are respectively sealed with the mounting portion and the connecting tube, the air cushion and the connecting tube form a driving cavity, and a connecting hole suitable for connecting to an external air pump is provided on the containing portion, and the connecting hole is connected to the driving cavity.

Compared with the prior art, the beneficial effects of this application are:

In the breast pump involved in the present application, the accommodating space is defined by a containing portion and a shield portion that are integrally connected, a retaining through hole is provided on the shield portion, and the bra is connected to the milk storage container by interference fit with the retaining through hole, so that the accommodating space has better sealing performance, and the milk storage container is squeezed and deformed during use, and cracks will not appear in the accommodating space, causing leakage of the milk stored in the accommodating space; the center of the retaining through hole is arranged above the center of the shield portion, so that there is enough space below the retaining through hole to accommodate the milk, and then the liquid level of the milk in the accommodating space is not easy to reach the connection between the bra and the milk storage container, thereby avoiding leakage at the connection due to long-term contact between the milk and the connection.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the breast pump of the present application;

FIG2 is a schematic diagram of the structure of a milk storage device in a breast pump of the present application;

FIG3 is a schematic diagram of the structure of a bra in a breast pump of the present application;

FIG4 is a cross-sectional view of the breast pump of the present application;

FIG5 is a cross-sectional view of another embodiment of the breast pump of the present application;

FIG. 6 is an exploded view of the breast pump of the present application.

In the figure: 100, milk storage container; 110, containing part; 111, connecting tube; 112, connecting hole; 120, shield part; 121, retaining hole; 122, matching part; 130, accommodating space; 140, placing part; 150, pouring port; 200, bra; 210, fitting part; 211, mounting ring groove; 220, nipple part; 221, mounting part; 222, ventilation hole; 223, milk outlet; 300, air cushion; 400, milk outlet tube.

DETAILED DESCRIPTION

Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

1-6, the utility model provides a breast pump, including a milk storage device 100 and a brassiere 200. The milk storage device 100 includes a containing portion 110 and a shield portion 120. The shield portion 120 is provided with a retaining through hole 121. The shield portion 120 is integrally connected to the containing portion 110 and retained on one side of the containing portion 110. A accommodating space 130 is formed between the shield portion 120 and the containing portion 110. The retaining through hole 121 on the shield portion 120 is connected to the accommodating space 130. The brassiere 200 is suitable for interference fit with the retaining through hole 121 so that the brassiere 200 is set on the milk storage device 100. Compared with the existing breast pumps, the storage space 130 of the breast pump of the present application is defined by the container portion 110 and the shield portion 120 which are integrally connected. Therefore, when the breast pump is squeezed and deformed during use, the shield portion 120 will not separate from the container portion 110 to form a gap between the shield portion 120 and the container portion 110, thereby preventing the milk stored in the storage space 130 from leaking.

In most cases, the milk storage container 100 is made of a hard plastic material with relatively high hardness, so as to improve the anti-deformation capability of the milk storage container 100 and prevent the milk storage container 100 from being squeezed and deformed during the milk sucking process.

Preferably, the center of the retaining through hole 121 is arranged above the center of the shield portion 120, that is, the retaining through hole 121 is located at a position slightly above the center of the shield portion 120. By arranging the retaining through hole 121 at a position slightly above the center of the shield portion 120, a larger distance can be made between the retaining through hole 121 and the bottom of the milk storage device 100, thereby ensuring that there is enough space for accommodating lotion, and the lotion stored in the accommodating space 130 will not flow out from the connection between the retaining through hole 121 and the bra 200.

As shown in FIGS. 3-5 , the bra 200 includes a fitting portion 210 adapted to fit the breast and a nipple portion 220 adapted to place the nipple, the fitting portion 210 is trumpet-shaped, and the end of the fitting portion 210 with a smaller diameter is connected to the nipple portion 220. In addition, the maximum diameter of the fitting portion 210 is not less than the diameter of the holding through hole 121, so that the fitting portion 210 can cooperate with the holding through hole 121 to place the bra 200 on the milk storage device 100. Specifically, when the maximum diameter of the fitting portion 210 is greater than the diameter of the retaining through hole 121, the nipple portion 220 of the bra 200 is located in the accommodating space 130, and the fitting portion 210 of the bra 200 is located outside the shield portion 120. The fitting portion 210 is suitable for fitting with the breast, while the shield portion 120 does not contact the breast. This embodiment is suitable for the case where the shield portion 120 is made of hard plastic; when the maximum diameter of the fitting portion 210 is equal to the diameter of the retaining through hole 121, the nipple portion 220 and the fitting portion 210 of the bra 200 are both located in the accommodating space 130, and the breast is in contact with the fitting portion 210 and the shield portion 120 at the same time. This embodiment is suitable for the case where the shield portion 120 is made of soft silicone material.

The fitting portion 210 and the bra 200 may be of an integrated design or a split design. In most cases, the fitting portion 210 and the bra 200 are of a split design, the fitting portion 210 is made of a soft silicone material, the nipple portion 220 is made of a hard plastic material, and the fitting portion 210 and the bra 200 are connected by a snap-fit method, so that mothers can replace the nipple portion 220 of different sizes.

Furthermore, a mounting annular groove 211 is provided on the outer surface of the fitting portion 210 of the bra 200, and the mounting annular groove 211 is adapted to be interference fit with the retaining through hole 121. When the bra 200 is set on the milk storage device 100, the hole wall of the retaining through hole 121 is embedded in the mounting annular groove 211, and the mounting annular groove 211 made of soft silicone material is squeezed to a certain extent and closely fits with the hole wall of the retaining through hole 121, thereby ensuring the sealing of the connection between the bra 200 and the milk storage device 100, ensuring that the lotion can be stably stored in the accommodating space 130, and avoiding the phenomenon of lotion leakage. In other embodiments, the mounting annular groove 211 can also be provided on the retaining through hole 121. When the mounting annular groove 211 is provided on the retaining through hole 121, a mounting convex ring is provided on the outer side of the fitting portion 210, and the mounting convex ring is adapted to be embedded in the mounting annular groove 211 to achieve the connection between the bra 200 and the milk storage device 100.

As shown in Figure 5, in some other preferred embodiments, the edge of the retaining through hole 121 is provided with a matching portion 122 extending to the outside of the accommodating space 130, the matching portion 122 is in the shape of an annular cylinder, and a positioning protrusion is also provided on the matching portion 122, which is suitable for playing a role of fixing and limiting when the milk storage device 100 is processed by the blow molding process. A mounting ring groove 211 is provided on the fitting portion 210 of the bra 200, and the width of the mounting ring groove 211 is equivalent to the thickness of the matching portion 122. Then, when the bra 200 is set on the milk storage device 100, the matching portion 122 is embedded in the mounting ring groove 211, and the mounting ring groove 211 made of soft silicone material is interference fit with the matching portion 122, so that the matching portion 122 is tightly fitted with the groove wall of the mounting ring groove 211. Providing a matching portion 122 at the edge of the retaining hole 121 can increase the contact area between the bra 200 and the milk storage container 100, improve the sealing of the connection between the bra 200 and the milk storage container 100, and prevent the milk in the accommodating space 130 from leaking from the connection between the two.

An air cushion 300 is arranged between the bra 200 and the milk storage container 100, a connecting tube 111 is arranged on the inner side wall of the containing part 110, a mounting part 221 is arranged on the end of the nipple part 220 away from the fitting part 210, a vent 222 connected to the nipple part 220 is provided on the mounting part 221, one end of the air cushion 300 is sleeved on the connecting tube 111, and the other end of the air cushion 300 is sleeved on the mounting part 221, the air cushion 300 and the connecting tube 111 are surrounded to form a driving cavity, a connecting hole 112 suitable for connecting to an external air pump is provided on the containing part 110, the connecting hole 112 is connected to the driving cavity, and the external air pump fills and sucks the air in the driving cavity through the connecting hole 112 to control the forward and backward movement of the air cushion 300, and then uses pressure to press the breast in the bra 200, so that the lotion can better enter the accommodating space 130 through the milk outlet component. The external air pump can be fixed on the connection hole 112 of the containing part 110 to directly drive the air cushion 300 , and a hose can also be used to connect the connection hole 112 to drive the air cushion 300 .

A milk outlet 223 and a milk outlet pipe 400 are provided on the side wall of the nipple portion 220 near one end of the mounting portion 221. The positions of the milk outlet pipe 400 and the milk outlet 223 correspond to each other, and the milk outlet pipe 400 connects the nipple portion 220 and the receiving space 130, ensuring that the sucked milk can better enter the receiving space 130 through the milk outlet pipe 400. In some preferred embodiments, a one-way valve (not shown in the figure) is provided on the milk outlet pipe 400 to prevent the milk in the receiving space 130 from flowing back to the nipple portion 220 through the milk outlet pipe 400. The one-way valve is a cover plate made of soft silicone material. The one-way valve cover is arranged at the pipe mouth of the milk outlet pipe 400 to close the pipe mouth of the milk outlet pipe 400 and prevent the lotion in the accommodating space 130 from flowing into the milk outlet pipe 400. When lotion flows from the nipple portion 220 to the accommodating space 130, the one-way valve elastically deforms and flips downward to make the pipe mouth of the milk outlet pipe 400 open, and the lotion can flow into the accommodating space 130.

The container 110 is provided with a pouring port 150 connected to the accommodating space 130 . The pouring port 150 is disposed at the top of the container 110 . The milk storage device 100 is disposed with the pouring port 150 facing downward, so that the milk in the accommodating space 130 can be easily poured out from the pouring port 150 .

In other embodiments, a sealing connector (not shown in the figure) is further provided on the container 110, and the sealing connector includes a connection part and a sealing plug, the connection part has a fixed end and a free end relative to the fixed end, and the sealing plug is provided at the free end of the connection part. The fixed end of the connection part is fixedly provided on the container 110, while the free end of the connection part can move freely relative to the joint part, so that the sealing plug is operably installed on the pouring spout 150, and the pouring spout 150 can be switched between an open state and a sealed state, so as to facilitate the user to suck milk or pour out the milk. The sealing plug seals or opens the pouring spout 150 to prevent dust from entering the containing space 130 from the pouring spout 150 and affecting the use of the milk.

In some preferred embodiments, a placement portion 140 is provided at the bottom of the milk storage device 100. The placement portion 140 is an arc placement plate. The arc placement plate cooperates with the bottom of the milk storage device 100 so that the breast pump can be stably placed on the desktop after completing milk pumping, preventing the breast pump from tipping over and preventing the milk in the accommodating space 130 from flowing out from the liquid outlet or the channel of the bra 200 and backflow.

The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims (9)

1. The utility model provides a breast pump, its characterized in that includes milk storage and brassiere, milk storage includes splendid attire portion and guard shield portion, guard shield portion integrally connect in splendid attire portion's periphery, and then guard shield portion with form an accommodation space between the splendid attire portion, be provided with on the guard shield portion with the hold the through-hole of accommodation space intercommunication, the brassiere be suitable for with hold the through-hole cooperation, with the brassiere sets up on the milk storage, the brassiere includes the laminating portion of laminating with the breast and places the nipple portion of nipple, the laminating portion is loudspeaker form, the less one end of laminating portion diameter with nipple portion is connected, the maximum diameter of laminating portion is not less than hold the diameter of through-hole.

2. The breast pump of claim 1, wherein the bra is provided with a mounting ring groove, the mounting ring groove is suitable for being in interference fit with the holding through hole, so that the hole wall of the holding through hole is arranged in the mounting ring groove, and the wall of the mounting ring groove is tightly attached to the hole wall of the holding through hole; or the hole wall of the holding through hole is provided with a mounting annular groove, the bra is provided with a mounting convex ring matched with the mounting annular groove, and the mounting convex ring is suitable for being in interference fit with the mounting annular groove, so that the groove wall of the mounting annular groove is tightly attached to the mounting convex ring.

3. The breast pump of claim 1, wherein an edge of the retaining through hole is provided with an outwardly extending mating portion.

4. A breast pump according to claim 3, wherein the engagement portion is provided with a locating projection.

5. The breast pump of any of claims 1-4, wherein said fitting portion is made of a soft silicone material and said nipple portion is made of a hard plastic material; or the attaching part and the nipple part are made of soft silica gel materials.

6. The breast pump of claim 5, wherein a milk outlet and a milk outlet pipe are arranged on the side wall of the nipple part far away from one end of the fitting part, the milk outlet corresponds to the milk outlet in position, and the milk outlet pipe is communicated with the nipple part and the accommodating space.

7. The breast pump of claim 6 wherein said milk outlet is provided with a one-way valve adapted to prevent milk in said receiving space from flowing through said milk outlet into said nipple.

8. The breast pump of claim 1, wherein the top of the receiving portion is provided with a pouring spout.

9. The breast pump of claim 1, wherein one end of the nipple part, which is close to the containing part, is further provided with a mounting part, a vent hole which is communicated with the nipple part is formed in the mounting part, a connecting cylinder is arranged on the inner wall of the containing part, an air cushion is further arranged between the mounting part and the connecting cylinder, two ends of the air cushion are respectively and hermetically connected with the mounting part and the connecting cylinder, the air cushion and the connecting cylinder form a driving cavity, a connecting hole which is suitable for being connected with an external air pump is formed in the containing part, and the connecting hole is communicated with the driving cavity.