A tee structure for a breast pump

Abstract

The utility model discloses a three -way structure for breast pump relates to breast pump technical field, it includes three -way pipe, three -way pipe is equipped with the inside mutual communication liquid inlet end, negative pressure end and liquid outlet end, liquid inlet end corresponds to the breast cup of breast pump, negative pressure end corresponds to the negative pressure device of breast pump, and liquid outlet end is equipped with the liquid outlet that is vertically downward, and the valve piece is equipped with in the lateral port of three -way pipe, and the valve piece is sealed in the liquid outlet, and one side of valve piece is equipped with fixed end, and the fixed end of valve piece is fixed setting, and the other side of valve piece is equipped with the open -and -shut end, and the open -and -shut end of valve piece can open to the lateral of liquid outlet. The utility model provides a three -way structure for breast pump through setting half -openable valve piece of liquid outlet replaces the duckbill valve in prior art, realizes the function of one -way liquid outlet while, reduces the valve nozzle length, avoids too deeply into the feeding bottle and leads to unable liquid outlet.

Description

Technical Field

[0001] This utility model relates to the field of breast pump technology, and in particular to a three-way structure for a breast pump. Background Technology

[0002] A breast pump is a tool used to express breast milk that has accumulated in the mammary glands. Breast pumps are generally divided into manual breast pumps and electric breast pumps. Electric breast pumps have higher milk extraction efficiency, can adjust different milk extraction modes and intensity, simulate the sucking rhythm of a baby, and are more comfortable and convenient to use.

[0003] A typical breast pump consists of a bottle, a T-joint, and a negative pressure device. The T-joint usually has three connectors, which connect to the breast shield, the bottle, and the negative pressure device, respectively. During use, the breast shield is placed against the breast, and the negative pressure device creates a negative pressure environment inside the T-joint through the connectors, drawing milk from the breast shield into the T-joint and into the bottle for storage.

[0004] In current technology, the interface between the T-connector and the bottle faces downwards, and a downward-facing duckbill valve is installed at the interface. Because the duckbill valve is relatively long, in actual use, as the milk level in the bottle rises, the downward-facing valve gradually submerges the milk. The valve experiences pressure from the milk on the outside. When the pressure from the milk on the outside is greater than that on the inside, the valve cannot open properly or the opening is too small, preventing milk from flowing out effectively and affecting the normal use of the breast pump. Utility Model Content

[0005] To address the technical problem of poor liquid discharge from duckbill valves in existing technologies, this invention provides a three-way structure for breast pumps. By replacing the duckbill valve in the existing technology with a partially openable valve at the liquid outlet, it achieves unidirectional liquid discharge while reducing the length of the valve nozzle, thus preventing it from being inserted too deeply into the bottle and causing liquid discharge to fail.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a three-way structure for a breast pump, including a three-way tube; the three-way tube has an inlet end, a negative pressure end, and an outlet end that are internally interconnected; the inlet end corresponds to the breast shield of the breast pump; the negative pressure end corresponds to the negative pressure device of the breast pump; the outlet end has a vertically downward outlet; a valve plate is provided at the outlet on the outer end of the three-way tube; the valve plate is fitted and sealed to the outlet; a fixed end is provided on one side of the valve plate, and the fixed end of the valve plate is fixedly set; an opening and closing end is provided on the other side of the valve plate, and the opening and closing end of the valve plate can open towards the outside of the outlet.

[0008] The three-way structure for a breast pump provided by this utility model preferably has a collar connected to the fixed end of the valve plate; a retaining seat is provided on the outside of the three-way tube; the collar is nested on the retaining seat; and the fixed end of the valve plate is fixedly connected to the retaining seat by the collar.

[0009] The three-way structure for a breast pump provided by this utility model preferably has a downwardly extending sidewall surrounding the outer side of the outlet; the valve plate is attached to the bottom of the sidewall; the length of the sidewall facing the fixed end of the valve plate is smaller than the length of the sidewall facing the opening end of the valve plate.

[0010] The above technical solution has the following advantages or beneficial effects: This utility model provides a three-way structure for a breast pump, relating to the field of breast pump technology. It includes a three-way tube; the three-way tube has an internally interconnected inlet end, a negative pressure end, and an outlet end; the inlet end corresponds to the breast shield of the breast pump; the negative pressure end corresponds to the negative pressure device of the breast pump; the outlet end has a vertically downward-facing outlet; a valve plate is provided at the outer port of the outlet on the three-way tube; the valve plate is fitted and sealed to the outlet; one side of the valve plate has a fixed end, which is fixedly set; the other side of the valve plate has an opening / closing end, which can open outwards towards the outlet. This utility model provides a three-way structure for a breast pump that replaces the duckbill valve in the prior art by setting a partially opening / closing valve plate at the outlet, achieving unidirectional dispensing while reducing the length of the valve nozzle, avoiding excessive insertion into the bottle and preventing dispensing. Attached Figure Description

[0011] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0012] Figure 1 This is a cross-sectional view of a three-way structure for a breast pump provided in Embodiment 1 of this utility model;

[0013] Figure 2 This is a structural diagram of the combination of the collar and the retainer in a three-way structure for a breast pump, provided in Embodiment 1 of this utility model;

[0014] Figure 1-2 Includes: 1. T-connector; 11. Breast pump; 12. Negative pressure device; 2. Liquid outlet; 21. Valve plate; 22. Ring; 23. Holder; 24. Side wall. Detailed Implementation

[0015] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0016] Example 1:

[0017] like Figure 1-2 As shown:

[0018] In current technology, the interface between the T-connector and the bottle faces downwards, and a downward-facing duckbill valve is installed at the interface. Because the duckbill valve is relatively long, in actual use, as the milk level in the bottle rises, the downward-facing valve gradually submerges the milk. The valve experiences pressure from the milk on the outside. When the pressure from the milk on the outside is greater than that on the inside, the valve cannot open properly or the opening is too small, preventing milk from flowing out effectively and affecting the normal use of the breast pump. To address the issue of poor fluid discharge from the duckbill valve, this invention provides a three-way structure for a breast pump, comprising a three-way tube 1; the three-way tube 1 has an internally interconnected inlet end, a negative pressure end, and an outlet end; the inlet end corresponds to the breast shield 11 of the breast pump; the negative pressure end corresponds to the negative pressure device 12 of the breast pump; the outlet end has a vertically downward-facing outlet 2; a valve plate 21 is provided at the outer port of the outlet 2 located on the three-way tube 1; the valve plate 21 is fitted and sealed against the outlet 2; one side of the valve plate 21 has a fixed end, which is fixedly set; the other side of the valve plate 21 has an opening and closing end, which can open towards the outside of the outlet 2.

[0019] The three-way structure for a breast pump provided by this utility model connects the breast shield 11 and the negative pressure device 12 in the same way as the prior art. The negative pressure device 12 creates a negative pressure environment within the three-way tube 1, causing milk to be squeezed out from the breast pressed against the breast shield 11. The milk flows through the three-way tube 1 to the outlet 2. Unlike the prior art, the three-way structure for a breast pump provided by this utility model replaces the traditional duckbill valve with a valve plate 21 on the outside of the outlet 2. The valve plate 21 is attached to the outlet 2, sealing it. One side of the valve plate 21 is fixed, while the other side can open downwards under force, allowing the valve plate 21 to rotate around its fixed end axis. When the milk at the outlet 2 reaches a set capacity, the gravity of the milk opens the side of the valve plate 21 downwards, exposing a gap in the outlet 2 towards the inside of the bottle, allowing the milk to flow into the bottle. Since the valve plate 21 directly covers the outlet 2, it can be positioned horizontally. This structure greatly reduces the length of the one-way valve extending into the bottle, effectively preventing milk from overflowing the valve and hindering proper dispensing.

[0020] The present invention provides a three-way structure for a breast pump by setting a horizontally semi-open valve plate 21 at the outlet 2 to replace the existing duckbill valve to achieve the function of a one-way valve. At the same time, the horizontal setting of the valve plate 21 can greatly reduce the length of the one-way valve into the bottle, which can effectively prevent the milk from overflowing the valve and causing the milk to fail to flow effectively.

[0021] In order to effectively fix the fixed end of the valve plate 21, in a preferred embodiment, the fixed end of the valve plate 21 is connected to a collar 22; a retaining seat 23 is provided on the outside of the tee pipe 1; the collar 22 is nested on the retaining seat 23; the fixed end of the valve plate 21 is fixedly connected to the retaining seat 23 through the collar 22. The valve plate 21 and the collar 22 can be an integral structure and can be made of rubber; the tee pipe 1 and the retaining seat 23 can also be an integral structure and can be made of hard plastic. The retaining seat 23 is provided on the tee pipe 1 near the valve plate 21, and the fixed end of the valve plate 21 is fixedly connected to the tee pipe 1 through the collar 22.

[0022] The present invention provides a three-way structure for a breast pump, which uses a seat 23 and a collar 22 for nested connection, and fixes the fixed end of the valve plate 21 to the three-way tube 1, so as to facilitate the opening and closing of the other side of the valve plate 21.

[0023] If the valve plate 21 is directly attached to the outlet 2, insufficient milk weight will prevent the valve plate 21 from opening. To address this issue, in a preferred embodiment, the outlet 2 is surrounded by a downwardly extending sidewall 24; the valve plate 21 is attached to the bottom of the sidewall 24; the length of the sidewall 24 facing the fixed end of the valve plate 21 is less than the length of the sidewall 24 facing the opening / closing end of the valve plate 21. Firstly, to ensure the valve plate 21 can only open in one direction, it needs to completely cover the end of the sidewall 24, and the sidewall 24's limiting effect ensures the valve plate 21 can only open and close downwards. Then, by tilting the bottom end face of the side wall 24, that is, the length of the wall on one side of the side wall 24 is less than the length of the wall on the other side, a space can be enclosed inside the side wall 24. The milk that reaches the outlet 2 first gathers in this space. As the weight increases, the opening and closing end of the valve plate 21 is pressed down, creating a gap with the end face of the side wall 24, so that the milk flows out in one direction.

[0024] The present invention provides a three-way structure for a breast pump by setting a side wall 24 around the outlet 2 and covering the bottom of the side wall 24 with a valve plate 21, so that the internal space of the side wall 24 can accumulate milk, thereby effectively opening and closing the valve plate 21.

[0025] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application filed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.

[0026] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A three-way valve structure for a breast pump, characterized in that, The device includes a three-way connector; the three-way connector has an internally interconnected inlet end, a negative pressure end, and an outlet end; the inlet end corresponds to the breast shield of a breast pump; the negative pressure end corresponds to the negative pressure device of a breast pump; the outlet end has a vertically downward-facing outlet; the outlet has a valve plate at the outer port of the three-way connector; the valve plate is fitted and sealed to the outlet; one side of the valve plate has a fixed end, which is fixedly set; the other side of the valve plate has an opening and closing end, which can open towards the outside of the outlet.

2. The three-way structure for a breast pump according to claim 1, characterized in that, The valve plate has a retaining ring connected to its fixed end; a retaining seat is provided on the outside of the three-way pipe; the retaining ring is nested in the retaining seat; the valve plate has its fixed end fixedly connected to the retaining seat through the retaining ring.

3. The three-way structure for a breast pump according to claim 1, characterized in that, The outlet is surrounded by a downwardly extending sidewall; the valve plate is attached to the bottom of the sidewall; the length of the sidewall facing the fixed end of the valve plate is smaller than the length of the sidewall facing the opening end of the valve plate.

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