CN218900576U - One-way valve of breast pump and breast pump - Google Patents

Abstract

The utility model discloses a breast pump check valve and breast pump, including: the valve plate is made of flexible materials. In particular, the check valve bracket and the valve plate are provided with mutually matched buckling structures; and the surface of the valve plate has radian, the thick edge in the middle of the valve plate is thin, and the edge is provided with a circle of bulges which are attached to the one-way valve bracket. Compared with the prior art, the valve plate of the breast pump check valve provided by the utility model is designed to have radian on the surface, the middle thick edge is thin, and the outer edge of the valve plate is provided with a circle of protrusions which are attached to the check valve bracket, so that the tightness is enhanced, and the problem of milk leakage is solved. Meanwhile, the buckling body is arranged on one side of the valve plate, so that the structure is more compact, the volume is smaller, the space is not occupied, and the milk storage capacity is increased.

Description

One-way valve of breast pump and breast pump

Technical Field

The utility model relates to the field of mother and infant products, in particular to a breast pump one-way valve and a breast pump.

Background

Breast pump refers to a tool for expressing breast milk accumulated in the breast. The breast pump has the advantages of facilitating the milk pumping of professional women, solving the sucking difficulty of infants, helping to dredge the mammary glands, determining the milk quantity and the like, so that the breast pump is widely applied to the modern female lactation.

The one-way valve is generally arranged on the three-way piece of the breast pump to limit the one-way flow of liquid or gas so as to solve the problems of milk back suction and the like. In the widely used one-way valve, the one-way valve bracket and the valve plate are connected in a buckling structure. However, the valve plates in the prior art are planar, have poor sealing effect and are easy to leak milk. And the buckling position bodies used for buckling on the valve plates are arranged on the valve plates in a bilateral mode, so that the capacity of the breast pump body is occupied.

Disclosure of Invention

The utility model provides a breast pump one-way valve and a breast pump, and aims to solve the technical problem that a breast pump one-way valve is poor in sealing in the prior art.

The technical scheme adopted by the utility model is as follows:

the utility model provides a breast pump check valve and breast pump, including: the valve plate is provided with a one-way valve bracket with at least one diversion hole and a valve plate which is connected with the one-way valve bracket, fixed and sealed with the one-way valve bracket, and the valve plate is made of flexible materials. In particular, the check valve bracket and the valve plate are provided with mutually matched buckling structures; the surface of the valve plate has radian.

Further, the thick edge in the middle of the valve block is thin, and the edge of the valve block is provided with a circle of bulges which are attached to the one-way valve bracket.

In an embodiment, the concave surface of the valve plate is provided with a buckling position body, and the one-way valve bracket is provided with a buckling position hole.

In one embodiment, the buckling hole is circular, and the buckling body is a cylindrical mounting column.

In one embodiment, the mounting post is provided with a flange for preventing the mounting post and the buckling hole from sliding relatively.

In an embodiment, the distance between the flange and the valve plate is equal to the depth of the buckling hole.

In an embodiment, the flange is in a shape of a truncated cone, the diameter of the flange gradually decreases from one end of the valve plate to a direction away from the valve plate, and the diameter of the flange is larger than the diameter of the buckling hole.

In one embodiment, the check valve holder includes: the valve seat is provided with a valve plate, and the baffle plate is connected with one end of the valve seat to form a circle; the outline of the valve seat is cylindrical, square or elliptical.

A breast pump, comprising: the tee joint part further comprises the breast pump one-way valve, and the breast pump one-way valve is arranged on the tee joint part.

Further, the breast pump check valve is installed on the tee joint piece in a mode of buckling, hot melting, interference fit, ultrasonic welding or threaded connection.

Compared with the prior art, the valve plate of the breast pump check valve provided by the utility model is designed to have radian on the surface, the middle thick edge is thin, and the outer edge of the valve plate is provided with a circle of protrusions which are attached to the check valve bracket, so that the tightness is enhanced, and the problem of milk leakage is solved. Meanwhile, the buckling body is arranged on one side of the valve plate, so that the structure is more compact, the volume is smaller, the space is not occupied, and the milk storage capacity is increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the whole breast pump check valve according to the embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a check valve holder according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of another view of a check valve holder according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a valve plate according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of another view of a valve plate according to an embodiment of the present utility model;

11. a valve seat; 12. a baffle; 31. a mounting column; 32. a buckling hole; 311. a flange; 4. a protrusion.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The principles and structures of the present utility model are described in detail below with reference to the drawings and the examples.

As shown in fig. 1 to 5, the present utility model proposes a breast pump check valve comprising: the valve plate 2 is made of flexible materials and can deform. In particular, the check valve bracket and the valve plate 2 are provided with mutually matched buckling structures 3; and the surface of the valve plate 2 has radian, the middle thick edge is thin, and the edge is provided with a circle of bulges 4 which are attached to the one-way valve bracket.

As shown in fig. 2 and 3, the check valve supporter includes: a valve seat 11 for mounting the valve plate 2, and a baffle 12 connected with one end of the valve seat 11 to form a circle. The valve seat 11 is a cylinder with a through cavity in the middle, and a platform is outwards extended from the edge of the bottom surface of the cylinder, and the platform is a baffle plate 12, and the baffle plate 12 is used for limiting when connecting the one-way valve and the three-way piece. The valve seat 11 is integral with the flap 12. Three strip-shaped connecting ribs extend to the center of the circle and intersect at the center of the circle on the inner side surface of the cavity of the valve seat 11, and the positions of the connecting ribs are distributed into Y shapes. A circular buckling hole 32 is formed at the intersection of the three connecting ribs and is used for connecting the fixed valve plate 2. The three connecting ribs divide the circular cavity into three fan-shaped diversion holes for fluid to enter and exit.

As shown in fig. 4 and 5, the outer edge of the valve plate 2 is rounded, and the valve plate 2 is umbrella-shaped when seen from the side, has an arc, and gradually becomes thinner from the middle to the edge direction, and the outer edge of the valve plate 2 is provided with a circle of bulges 4, which is equivalent to a sealing ring to play a role of reinforcing sealing. Meanwhile, a cylindrical mounting column 31 is arranged at the center of the concave surface in the valve plate 2, and a circle of flange 311 is arranged on the mounting column 31 to prevent the mounting column 31 from sliding relative to the buckling hole 32. The flange 311 is in a truncated cone shape, the diameter of the flange 311 gradually decreases from one end of the valve plate 2 to a direction away from the valve plate 2, the diameter of the flange 311 is larger than that of the buckling hole 32, and the distance between the flange 311 and the valve plate 2 is equal to the depth of the buckling hole 32.

When the check valve is installed, the valve plate 2 is positioned on one side of the baffle plate 12, then the installation column 31 of the valve plate 2 is aligned with the buckling hole 32 on the check valve bracket, at the moment, a section between the flange 311 and the tail end of the installation column 31 can pass through the buckling hole 32, and then the installation column 31 is pulled forcefully to enable the flange 311 to pass through the buckling hole 32 so as to fix the valve plate 2 and the check valve bracket. Because the valve plate 2 is made of soft silica gel, the flange 311 on the mounting column 31 can be smoothly extruded and deformed to enter the buckling hole 32 to fix the valve plate 2 and the one-way valve bracket. The bulge 4 at the outer edge of the valve plate 2 after fixing is tightly attached to the valve seat 11, and the inner concave surface is opposite to the valve seat 11 and covers all the diversion holes.

When the one-way valve does not work, the bulge at the outer edge of the valve plate can be tightly attached to the valve seat of the one-way valve bracket, so that gas and liquid cannot flow through the diversion hole; when the check valve works, the pressure presses the valve plate from the check valve support to the direction of the valve plate, at the moment, the umbrella-shaped radian of the valve plate is deformed by external force, the valve plate is separated from the check valve support, and then gas and liquid can smoothly pass through the diversion holes.

The utility model also proposes a breast pump comprising: the tee piece further includes the breast pump check valve described in the above description. The tee joint piece is generally in threaded connection with a container for containing milk, the one-way valve is arranged in the tee joint piece, the specific position relationship is that a one-way valve bracket is arranged between the valve plate and the container, so that the valve plate is deformed only by extruding the container when the breast pump is used, milk can smoothly flow into the container, and the bulge of the valve plate can be tightly attached to the one-way valve bracket to seal the breast pump when the breast pump is ended. The installation of the one-way valve can be realized through interference fit between the three-way piece and the one-way valve. The specific installation mode is not limited, and in other embodiments, the check valve can be arranged on the bottle mouth or other positions of the container for containing milk of the breast pump in a buckling mode, a hot melting mode, an ultrasonic welding mode, a threaded connection mode and the like.

In the embodiment, the check valve bracket is made of PP material, and the valve plate is made of soft silica gel material. In other embodiments, the check valve holder may be made of other food grade materials, such as HDPE, PC, etc.; the valve plate can be made of other flexible materials.

In other embodiments, the fixing manner between the valve plate and the one-way valve bracket can be a hot melting manner, a welding manner, a threaded connection manner and the like. The shape of the check valve bracket and the number of the connecting ribs on the valve seat are not particularly limited. The outer contour of the valve seat in this embodiment may also be square or oval. And the buckling hole can also be positioned on the valve plate, the mounting column is positioned on the one-way valve bracket, and the two are matched with each other.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A breast pump one-way valve comprising: the valve plate is made of flexible materials, and is characterized in that the check valve bracket and the valve plate are provided with buckling structures which are matched with each other; the surface of the valve plate has radian.

2. The breast pump check valve of claim 1 wherein the thick edge in the middle of the valve plate is thin and the edge of the valve plate is provided with a circle of protrusions which are attached to the check valve bracket.

3. The breast pump check valve of claim 1 wherein said concave inner surface of said valve plate is provided with a retainer and said check valve bracket is provided with a retainer hole.

4. A breast pump one-way valve as claimed in claim 3 wherein said retainer aperture is circular and said retainer is a cylindrical mounting post.

5. The breast pump one-way valve of claim 4 wherein said mounting post is provided with a flange that prevents relative sliding of said mounting post and said snap-fit hole.

6. The breast pump one-way valve of claim 5 wherein the distance between said flange and said valve plate is equal to the depth of said snap hole.

7. The breast pump check valve of claim 6 wherein said flange is frustoconical, the diameter of said flange decreasing from one end of said valve plate in a direction away from said valve plate, and the diameter of said flange being greater than the diameter of said snap hole.

8. The breast pump one-way valve of claim 1 wherein said one-way valve holder comprises: the valve seat is provided with a valve plate, and the baffle plate is connected with one end of the valve seat to form a circle; the outline of the valve seat is cylindrical, square or elliptical.

9. A breast pump, comprising: a three-way member further comprising a breast pump one-way valve according to any one of claims 1 to 8, said breast pump one-way valve being mounted on said three-way member.

10. The breast pump of claim 9 wherein said breast pump one-way valve is mounted to said tee member by means of a snap, heat staking, interference fit, ultrasonic welding or threaded connection.

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