Breast pump main machine and breast pump

Abstract

The utility model discloses a breast pump main machine which comprises a main machine shell, an air pipe connector is connected to the main machine shell and comprises an air inlet end and an air outlet end used for being connected with an air pipe, a pump body assembly is arranged in the main machine shell, and an air outlet of the pump body assembly is connected with the air inlet end of the air pipe connector. An air outlet of the pump body assembly is connected with the air inlet end of the air pipe connector through a waterproof connecting assembly, and the waterproof connecting assembly comprises a connector fixing piece, a soft rubber air nozzle and a waterproof ventilation piece. According to the scheme, the sealing performance of the joints of the accessories can be enhanced, hard matching of the pump body assembly and the air pipe connector is avoided, liquid can be prevented from entering the pump body assembly while normal operation of the pump body assembly is ensured, and therefore the waterproof performance is enhanced, and pump body damage caused by liquid suction due to diaphragm piece damage or liquid residue is avoided.

Description

Technical Field

[0001] The utility model relates to the field of breast pumps, in particular to a breast pump host and a breast pump. Background Art

[0002] Electric breast pumps are widely used due to their convenience and good breast pumping effect. Existing electric breast pumps usually include a main unit, an air pipe, a breast shield, a container, and three-way connectors. An electric suction device is usually provided in the main unit. The electric suction device connects the air pipe and the breast shield, provides vacuum suction through the electric suction device, and finally guides the sucked breast milk into the container. During operation, the electric suction device completes the breast pumping operation during suction, and needs to be reset by blowing after each breast pumping. During the suction process, the breast milk sucked into the three-way connector easily enters the suction device through the air pipe. To solve the above problem, the existing solution is shown in the utility model with the authorization announcement number CN211096478U. A diaphragm for isolating breast milk is provided at the air outlet of the air pipe, thereby preventing breast milk from being sucked into the air pipe and the main unit, affecting the safety performance and service life of the product. However, after long-term use, the diaphragm may be damaged. In addition, after the product is cleaned, some liquid may remain in the diaphragm. Therefore, it is impossible to completely prevent the main unit from being sucked into liquid by only providing a diaphragm. In order to further ensure the safety of the breast pump, it is necessary to provide a breast pump main unit that is waterproof and does not affect the milk pumping work. Utility Model Content

[0003] Therefore, in order to solve the above problems, the utility model provides a breast pump host and a breast pump.

[0004] The utility model is realized by the following technical solutions:

[0005] A breast pump host, comprising a host housing, the host housing being connected to a trachea joint, the trachea joint comprising an air inlet end and an air outlet end for connecting to a trachea, a pump body assembly being arranged in the host housing, the air outlet of the pump body assembly being connected to the air inlet end of the trachea joint, the air outlet of the pump body assembly being connected to the air inlet end of the trachea joint, the air outlet of the pump body assembly being connected to the air inlet end of the trachea joint via a waterproof connection assembly, the waterproof connection assembly comprising a joint fixing part, a soft rubber air nozzle and a waterproof breathable part, the joint fixing part being fixed to the inner wall of the host housing, the The joint fixing includes a connecting tube, an air inlet channel is formed inside the soft rubber air nozzle, a first connecting part is provided at one end of the air inlet channel, and a second connecting part is provided at the other end, the first connecting part is connected to the air outlet of the pump body assembly, the second connecting part is connected to the connecting tube of the joint fixing, the air inlet end of the air pipe joint passes through the connecting tube and extends into the interior of the soft rubber air nozzle, the waterproof and breathable part is arranged between the air outlet of the pump body assembly and the air inlet end of the air pipe joint, and covers the air outlet of the pump body assembly.

[0006] Preferably, a through hole for passing the trachea joint is provided on the main housing, the connecting pipe is arranged opposite to and communicated with the through hole, limiting bosses are provided on both sides of the through hole, and limiting parts are also provided on both sides of the connecting pipe, the limiting parts correspond to the limiting bosses one by one, and the limiting parts and the limiting bosses are fixed by screws.

[0007] Preferably, a trumpet-shaped opening is formed at one end of the connecting pipe close to the through hole, a limiting section matching the trumpet-shaped opening of the connecting pipe is formed on the outer periphery of the air pipe joint, and a circle of clamping parts is formed at the end with a larger diameter of the limiting section, the shape of the clamping part matches the shape of the through hole on the main housing, and the clamping part is embedded in the through hole.

[0008] Preferably, the first connecting portion of the soft rubber air nozzle is wrapped around the outer periphery of the air outlet of the pump body assembly, and the second connecting portion is wrapped around the outer periphery of the connecting pipe.

[0009] Preferably, the inner wall surfaces of the first connecting part and the second connecting part of the soft rubber air nozzle are respectively provided with limiting convex ribs for strengthening the connection strength.

[0010] Preferably, the waterproof breathable component is a waterproof breathable membrane.

[0011] Preferably, the waterproof breathable membrane is fixed to the periphery of the air outlet of the pump body assembly by glue, and the peripheral edge of the other end abuts against the inner wall of the first connecting part and communicates with the air inlet channel inside the soft rubber air nozzle.

[0012] Preferably, the waterproof breathable component is a one-way valve, and the air inlet of the one-way valve is connected to the air outlet of the pump body assembly and covers the air outlet of the pump body assembly.

[0013] A breast pump comprises the breast pump main unit as described above.

[0014] The beneficial effects of the technical solution of the utility model are mainly reflected in:

[0015] 1. The air outlet of the pump body assembly is connected to the air inlet end of the air pipe joint through a waterproof connecting assembly, wherein the joint fixing of the waterproof connecting assembly can increase the stability of the connection between the waterproof connecting assembly and the main body housing, and the two ends of the soft rubber air nozzle are respectively connected to the air outlet of the pump body assembly and the connecting pipe of the joint fixing, which can enhance the sealing performance of the connection between the accessories on the one hand, and on the other hand, the material of the soft rubber air nozzle can also avoid the hard fit between the pump body assembly and the air pipe joint, and avoid the loosening of the connecting parts or increase of noise due to the vibration of the pump body when working. The waterproof breathable parts in the waterproof connecting assembly can prevent liquid from entering the pump body assembly while ensuring the normal operation of the pump body assembly, thereby enhancing the waterproof performance and avoiding damage to the pump body caused by inhalation of liquid due to damage of the diaphragm or residual liquid.

[0016] 2. The outer periphery of the trachea joint is provided with a limiting section that matches the trumpet-shaped opening of the joint fixing part to strengthen the connection between the trachea joint and the joint fixing part, thereby improving the connection fit between the trachea joint and the joint fixing part. In addition, the clamping part on the outer periphery of the trachea joint is embedded in the through hole on the host housing, which, on the one hand, improves the tightness of the connection between the trachea joint and the host housing, and on the other hand, by blocking the through hole with the clamping part, the sealing performance of the host housing can be improved to achieve waterproof and dustproof.

[0017] 3. The waterproof breathable component can be a waterproof breathable membrane or a one-way valve covering the air outlet of the pump body assembly. When the waterproof breathable component adopts a waterproof breathable membrane, one side of the membrane is connected to the periphery of the air outlet of the pump body assembly by glue, and the peripheral edge of the other side is abutted against the inner wall of the first connecting part of the soft rubber air nozzle. The pump body assembly is fixed to both sides of the first connecting part to ensure the firmness of the connection of the waterproof breathable membrane, thereby further improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the breast pump unit;

[0019] Figure 2 It is a cross-sectional view of the main unit of the breast pump;

[0020] Figure 3 yes Figure 2 A magnified view of part A;

[0021] Figure 4 It is a schematic diagram of the assembly state of the waterproof connection component and the host housing;

[0022] Figure 5 It is an exploded view of the waterproof connection assembly. DETAILED DESCRIPTION

[0023] In order to make the purpose, advantages and features of the utility model more clearly and in detail, the following preferred embodiments are illustrated and explained through non-limiting descriptions. This embodiment is only a typical example of the application of the technical solution of the utility model. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the utility model.

[0024] At the same time, it is stated that in the description of the scheme, it should be noted that the directions or positional relationships indicated by the terms "center", "up", "down", "left", "right", "front", "back", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0025] In addition, the terms "first" and "second" in this solution are only used for descriptive purposes and cannot be understood as indicating or implying the order of importance, or implicitly indicating the number of technical features shown. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In this utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] The utility model discloses a breast pump host, such as Figure 1 , Figure 2 As shown, it includes a main body shell 1, to which is connected an air pipe connector 2, wherein the air pipe connector 2 includes an air inlet end and an air outlet end for connecting an air pipe, and a pump body assembly 3 is arranged in the main body shell 1, wherein an air outlet 301 of the pump body assembly 3 is connected to the air inlet end of the air pipe connector 2, and the air outlet 301 of the pump body assembly 3 is connected to the air inlet end of the air pipe connector 2 via a waterproof connecting assembly.

[0027] like Figure 4 , Figure 5As shown, the waterproof connection assembly includes a joint fixing part 4, a soft rubber air nozzle 5 and a waterproof breathable part 6, the joint fixing part 4 is fixed on the inner wall of the main body shell 1, the joint fixing part 4 includes a connecting pipe 401, an air inlet channel 503 is formed inside the soft rubber air nozzle 5, one end of the air inlet channel 503 is provided with a first connecting part 501, and the other end is provided with a second connecting part 502, the first connecting part 501 is connected to the air outlet 301 of the pump body assembly 3, and the second connecting part 502 is connected to the connecting pipe 401 of the joint fixing part 4, thereby ensuring that the air inlet channel 503 is formed between the air outlet 301 of the pump body assembly 3 and the joint fixing part 4, because the material of the soft rubber air nozzle 5 has a certain elasticity, when the pump body assembly 3 is working and vibrating, it will not drive the joint fixing part 4 to vibrate synchronously, thereby avoiding the joint fixing part 4 from loosening or damage.

[0028] like Figure 2 , Figure 3 As shown, the air inlet end of the air pipe connector 2 passes through the connecting tube 401 and extends into the interior of the soft rubber air nozzle 5, which can improve the sealing performance and avoid air leakage. The waterproof breathable component 6 is arranged between the air outlet 301 of the pump body assembly 3 and the air inlet end of the air pipe connector 2, and covers the air outlet 301 of the pump body assembly 3, thereby preventing external liquid from entering the pump body assembly 3 through the air outlet 301 of the pump body assembly 3.

[0029] Among them, the main body shell 1 is provided with a through hole (not shown in the figure) for passing the air pipe connector 2, the connecting pipe 401 is arranged opposite to and communicated with the through hole, and limiting bosses 7 are arranged on both sides of the through hole. Limiting parts 8 are also arranged on both sides of the connecting pipe 401. The limiting parts 8 correspond to the limiting bosses 7 one by one, and the limiting parts 8 are fixed to the limiting bosses 7 by screws. In other embodiments, the limiting parts 8 and the limiting bosses 7 can also be fixed by snap-on connection or interference fit, which will not be repeated here.

[0030] In some embodiments, a trumpet-shaped opening 402 is formed at one end of the connecting tube 401 close to the through hole, and a limiting section 201 matching the trumpet-shaped opening of the connecting tube 401 is formed on the outer periphery of the trachea connector 2, and ensuring that when the air inlet end of the trachea connector 2 passes through the connecting tube 401, the limiting section 201 fits with the trumpet-shaped opening 402 at one end of the connecting tube 401, further improving the stability of the connection between the trachea connector 2 and the connector fixing member 4, and a circle of clamping portions 202 are formed on the outer periphery of the trachea connector 2 at the end with a larger diameter of the limiting section 201, and the shape of the clamping portion 202 matches the shape of the through hole on the main housing 1, and the clamping portion 202 is embedded in the through hole. In one embodiment, the clamping portion 202 is interference fit with the through hole, further improving the sealing performance of the main housing 1 and the connection stability of the trachea connector 2 and the main housing 1.

[0031] like Figure 2 , Figure 5 As shown, in some embodiments, the first connection portion 501 of the soft rubber air nozzle 5 is wrapped around the outer periphery of the air outlet 301 of the pump body assembly 3, and the second connection portion 502 is wrapped around the outer periphery of the connecting pipe 401, such as Figure 2-Figure 4 As shown, in one embodiment, the first connection part 501 and the second connection part 502 are two end covers opening outward, wherein the inner diameter of the first connection part 501 matches the outer diameter of the air outlet 301 of the pump body assembly 3, and the inner diameter of the second connection part 502 matches the outer diameter of the connecting pipe 401. In a preferred embodiment, the inner wall surfaces of the first connection part 501 and the second connection part 502 of the soft rubber air nozzle 5 are respectively provided with limiting convex ribs for strengthening the connection firmness, so as to ensure the connection stability between the first connection part 501 and the air outlet 301 of the pump body assembly 3 and between the second connection part 502 and the connecting pipe 401. In one embodiment, the limiting convex ribs on the inner wall surfaces of the first connection part 501 and the second connection part 502 can be threads, and the air outlet 301 of the pump body assembly 3 and the outer periphery of the connecting pipe 401 can be provided with matching thread structures to further strengthen the connection stability.

[0032] like Figure 3-Figure 5As shown, in some embodiments, the waterproof breathable member 6 is a waterproof breathable membrane, which is fixed to the periphery of the air outlet 301 of the pump body assembly 3 by glue, and the periphery edge of the other end is in contact with the inner wall of the first connecting portion 501 in the shape of an end cover, wherein one end opening of the air inlet channel 503 is arranged at the top of the inner wall of the first connecting portion 501, so the waterproof breathable membrane is communicated with the air inlet channel 503 inside the soft rubber air nozzle 5, and during installation, the waterproof breathable membrane is first glued to the air outlet 301 of the pump body assembly 3 by glue. 1 is fixed to the periphery of the pump body assembly 3 and covers the air outlet 301 of the pump body assembly 3, then the first connecting portion 501 of the soft rubber air nozzle 5 is pressed together with the air outlet 301 of the pump body assembly 3, and the top of the inner wall of the first connecting portion 501 located at the opening periphery of the air inlet channel 503 is interference fit with the surface of the waterproof breathable membrane, ensuring that the waterproof breathable membrane is located between the air outlet 301 of the pump body assembly 3 and the opening of the air inlet channel 503. After the installation is completed, the soft rubber air nozzle 5 uses the force applied to it by the connecting fixture to ensure the stability of the connection state.

[0033] In other embodiments, the waterproof and breathable component 6 is a one-way valve, such as a film one-way valve, a duckbill valve, etc. The air inlet of the one-way valve is connected to the air outlet 301 of the pump body assembly 3 and covers the air outlet 301 of the pump body assembly 3. There are many ways to connect the air inlet of the one-way valve to the air outlet 301 of the pump body assembly 3, such as glue connection, which will not be elaborated here.

[0034] The utility model further discloses a breast pump, comprising the breast pump main unit as described above. Other components of the breast pump can refer to various forms of the prior art, which will not be described in detail herein.

[0035] There are many implementation methods of the utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A breast pump host, comprising a host housing, the host housing being connected to a trachea joint, the trachea joint comprising an air inlet end and an air outlet end for connecting to a trachea, a pump assembly being arranged in the host housing, the air outlet of the pump assembly being connected to the air inlet end of the trachea joint, characterized in that: The air outlet of the pump body assembly is connected to the air inlet end of the air pipe joint through a waterproof connecting assembly, and the waterproof connecting assembly includes a joint fixing part, a soft rubber air nozzle and a waterproof breathable part. The joint fixing part is fixed to the inner wall of the main body shell, and the joint fixing part includes a connecting pipe. An air inlet channel is formed inside the soft rubber air nozzle. A first connecting part is provided at one end of the air inlet channel, and a second connecting part is provided at the other end. The first connecting part is connected to the air outlet of the pump body assembly, and the second connecting part is connected to the connecting pipe of the joint fixing part. The air inlet end of the air pipe joint passes through the connecting pipe and extends into the interior of the soft rubber air nozzle. The waterproof breathable part is arranged between the air outlet of the pump body assembly and the air inlet end of the air pipe joint, and covers the air outlet of the pump body assembly.

2. The breast pump according to claim 1, characterized in that: The main housing is provided with a through hole for passing the air pipe joint, the connecting pipe is arranged opposite to and communicated with the through hole, limiting bosses are arranged on both sides of the through hole, and limiting parts are also arranged on both sides of the connecting pipe, the limiting parts correspond to the limiting bosses one by one, and the limiting parts and the limiting bosses are fixed by screws.

3. The breast pump according to claim 2, characterized in that: A trumpet-shaped opening is formed at one end of the connecting pipe close to the through hole, a limiting section matching the trumpet-shaped opening of the connecting pipe is formed on the outer periphery of the air pipe joint, and a circle of clamping parts is formed at the end of the limiting section with a larger diameter, the shape of the clamping part matches the shape of the through hole on the main body shell, and the clamping part is embedded in the through hole.

4. The breast pump according to claim 3, characterized in that: The first connection portion of the soft rubber air nozzle is wrapped around the outer periphery of the air outlet of the pump body assembly, and the second connection portion is wrapped around the outer periphery of the connecting pipe.

5. The breast pump according to claim 4, characterized in that: The inner wall surfaces of the first connecting part and the second connecting part of the soft rubber air nozzle are respectively provided with limiting convex ribs for strengthening the connection strength.

6. The breast pump according to claim 4, characterized in that: The waterproof and breathable component is a waterproof and breathable membrane.

7. The breast pump according to claim 6, characterized in that: The waterproof breathable membrane is fixed to the periphery of the air outlet of the pump body assembly by glue, and the peripheral edge of the other end abuts against the inner wall of the first connecting part and communicates with the air inlet channel inside the soft rubber air nozzle.

8. The breast pump according to claim 1, characterized in that: The waterproof and breathable component is a one-way valve, the air inlet of the one-way valve is connected to the air outlet of the pump body assembly and covers the air outlet of the pump body assembly.

9. A breast pump, characterized in that: It comprises a breast pump host as described in any one of claims 1 to 8.

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