Hands-free breast pump

Abstract

The utility model provides a kind of hand-free breast pump, at least comprising: host computer, at least including casing, and compression bin is formed on casing;Three-way structure, with casing detachable cooperation;Piston, with one of three-way structure detachable connection and with compression bin limit cooperation;After being assembled, piston is sleeved in the outer periphery of one of three-way structure and is located in compression bin, when breast pump works, piston is compressed or reset in compression bin.The utility model provides a kind of brand-new structure's hand-free breast pump, the breast pump adopts special, can be matched with three-way structure and detachable piston, the piston not only can be used as air bag, but also can be matched with three-way structure to form nipple bin that can accommodate nipple, i.e., the piston integrates piston bin and nipple bin, reduces component, greatly simplifies structure, reduces volume, so more installation space can be provided for installing other components.

Description

Technical Field

[0001] This utility model relates to the field of maternal and infant products technology, and in particular to a hands-free breast pump. Background Technology

[0002] Breast pumps are a common maternal and infant product. When newborns are in the first 1-3 months after birth and cannot suckle from their mother's nipple to obtain breast milk, a breast pump is needed to express the breast milk from the breasts and then feed the newborn with a bottle.

[0003] Compared to traditional handheld breast pumps, which are relatively inconvenient to use, wearable breast pumps that can be used in conjunction with bras have gradually emerged on the market. Wearable breast pumps are highly integrated and small in size. When in use, they can be placed directly inside the bra. After the user wears the bra, the wearable breast pump can make direct and complete contact with the breast, and the breast pumping operation can be completed without the need for hand or other auxiliary operations, making it extremely convenient and labor-saving to use.

[0004] As shown in the prior art, such as CN 115192800 A, a hands-free wearable breast pump is disclosed, which includes a main unit, a milk storage bottle, a three-way valve, an air bladder, and a duckbill valve. The main unit has an installation cavity with an opening at its front end. The three-way valve has a first end, a second end for installing the air bladder, and a third end for installing the duckbill valve. The air bladder is installed at the second end, the duckbill valve is installed at the third end, and the milk storage bottle is installed on the three-way valve or the main unit. The duckbill valve is connected to the milk storage bottle. The main unit has a push-positioning structure formed in the installation cavity. The three-way valve is detachably installed in the installation cavity and abuts against the push-positioning structure. The three-way valve is pressed against the side wall of the installation cavity by the upward push of the push-positioning structure.

[0005] Compared to other hands-free breast pumps on the market, the aforementioned hands-free wearable breast pump has the advantage of a detachable three-way valve. However, it also has the following drawbacks: In the three-way valve structure, the airbag compartment D1, which is used to accommodate the airbag, is separate from the nipple compartment, which accommodates the nipple. Therefore, the three-way valve structure occupies a large space and has a large overall volume. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a hands-free breast pump to solve the problems of large size in the prior art.

[0007] To achieve the above and other related objectives, this utility model provides a hands-free breast pump, comprising at least:

[0008] The main unit includes at least a casing, on which a compression chamber is formed;

[0009] The three-way structure allows for detachable connection with the housing.

[0010] The piston is detachably connected to one of the three-way valves and is fitted with a limiting mechanism in the compression chamber.

[0011] The assembled piston is fitted onto the outer periphery of one of the three-way valves and located inside the compression chamber. When the breast pump is working, the piston is compressed or reset inside the compression chamber.

[0012] In one embodiment of this invention, the first port of the three-way structure is formed into a breast-sucking shield structure. Thus, the breast-sucking shield covers the user's breast, allowing the nipple to extend into the piston.

[0013] In one embodiment of this utility model, the hands-free breast pump also includes a nipple cover that is detachably fitted with the breast shield structure. Thus, during use, the nipple extends from the nipple cover into the piston, and the nipple cover effectively positions the nipple, preventing excessive movement. The nipple cover can be made of skin-friendly and soft silicone material.

[0014] In one embodiment of this utility model, the second port of the three-way structure has an annular protrusion, and the piston is fitted onto the outer periphery of the annular protrusion. This facilitates the fitting of the piston.

[0015] In one embodiment of this utility model, a limiting step is formed at one end of the annular protrusion near the breast pump structure, and a stepped groove is formed at the port of the compression chamber to limit and cooperate with the piston and the annular protrusion. The piston can be pressed into the stepped groove of the compression chamber under the action of the limiting step. Thus, the piston can be limited after assembly, and a clamping force can be provided to press the piston from front to back, achieving good sealing performance.

[0016] In one embodiment of this invention, a limiting groove is formed on the inner wall of the piston, and a limiting protrusion is formed at the end of the annular protrusion away from the breast pump structure, which cooperates with the limiting groove. The piston can be pressed into the compression chamber under the action of the limiting protrusion. Thus, the piston can be further limited and pressed, providing a pressing force from the inside out, further enhancing the sealing performance.

[0017] In one embodiment of this utility model, the housing is provided with a first clearance groove that mates with the three-way structure, and the piston is provided with a second clearance groove that mates with the three-way structure. This facilitates the assembly of the three-way structure with the housing.

[0018] In one embodiment of the present invention, the hands-free breast pump also includes a milk collector, and the third port of the three-way structure (2) is connected to a cap-shaped connector (23). The milk collector (5) and the cap-shaped connector (23) are detachably connected. The three-way structure (2) also includes a groove-shaped structure (24) that connects the cap-shaped connector (23) and the annular protrusion (22) respectively.

[0019] In one embodiment of this utility model, the inner wall of the piston is provided with a raised structure. Thus, during the piston's contraction and repositioning, this raised structure can massage the user's nipple, ensuring a smoother milk expression process and providing a massage and health care effect. The structure is simple yet highly functional.

[0020] In one embodiment of the present invention, the main unit further includes a negative pressure pump installed in the housing. The housing includes a first housing and a second housing. The first housing and the second housing are detachably connected and a receiving space is formed between them. The bottom of the first housing has a groove-shaped limiting structure that cooperates with the limiting structure of the three-way structure. The compression chamber is formed on the end face of the first housing away from the second housing and is formed by the first housing being recessed towards the second housing. The negative pressure pump is installed in the receiving space and is connected to the compression chamber through a pipe.

[0021] In one embodiment of this utility model, the main unit includes a control panel and a control circuit board. The control circuit board is installed within the receiving space and electrically connected to the negative pressure pump. The control panel is installed at the upper end of the housing and cooperates with the control circuit board. The control panel is equipped with at least a power on / off button and a negative pressure pump suction force adjustment button. Thus, the control panel can at least realize functions such as power on / off and suction force adjustment, making operation convenient.

[0022] In one embodiment of this utility model, the main unit further includes a battery, which is installed within the receiving space and electrically connected to the negative pressure pump and the control circuit board. Thus, the battery can store electrical energy to power the various electrical components of the breast pump, effectively improving the pump's battery life.

[0023] As described above, the hands-free breast pump of this invention has the following beneficial effects:

[0024] 1. This utility model provides a novel hands-free breast pump with a unique structure. The breast pump uses a special, detachable piston that can be matched with a three-way structure. This piston can not only be used as an air bladder, but also be matched with the three-way structure to form a nipple chamber that can accommodate the nipple. That is, the piston integrates the piston chamber and the nipple chamber into one unit, reducing the number of components, greatly simplifying the structure, and reducing the volume. This provides more installation space for installing other components.

[0025] 2. The three-way structure of this utility model is detachable from the main unit, and the piston is also detachable from the three-way structure, which has the advantages of convenient disassembly and cleaning.

[0026] 3. Due to the special limiting structure of the three-way valve, the piston remains connected to the three-way valve after it is removed from the main unit, thus ensuring that the milk will not leak onto the main unit.

[0027] 4. The inner wall of the piston has a raised structure. During the piston's contraction and return, the raised structure can provide contact massage to the user's nipples, which not only ensures a smoother milk pumping process but also provides a massage and health care effect. The structure is simple but highly functional.

[0028] In summary, the hands-free breast pump of this invention has many advantages such as ease of use, simple structure, small size, easy assembly and disassembly, and easy cleaning. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the hands-free breast pump of this utility model;

[0030] Figure 2 for Figure 1 The diagram shown is a three-dimensional representation of a hands-free breast pump without the milk collector.

[0031] Figure 3 for Figure 2 The diagram shows a top view of the hands-free breast pump.

[0032] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the hands-free breast pump along the AA direction.

[0033] Figure 5 for Figure 2 One of the exploded structural diagrams of a hands-free breast pump shown;

[0034] Figure 6 for Figure 5 The diagram shown is an exploded view of part of the structure of the hands-free breast pump.

[0035] Figure 7 for Figure 6 The diagram shows the exploded structure of the hands-free breast pump from another angle;

[0036] Figure 8 for Figure 2 The second schematic diagram of the exploded structure of the hands-free breast pump shown;

[0037] Figure 9 for Figure 2 The third diagram showing the exploded structure of the hands-free breast pump;

[0038] Figure 10 A three-dimensional structural diagram of the main unit of this utility model after the second housing is opened;

[0039] Figure 11 This is a three-dimensional structural diagram of the second shell of this utility model.

[0040] Figure 1-11Reference numerals in the attached drawings: 1-Main unit; 2-T-connector structure; 3-Piston; 4-Nipple cap; 5-Milk collector; 11-Housing; 12-Compression chamber; 13-Negative pressure pump; 14-Control mechanism; 15-Battery; 16-Pipe; 21-Breast suction shield structure; 22-Annular protrusion; 23-Cover-shaped connector; 24-Slotted structure; 31-Protrusion structure; 32-Second clearance groove; 33-Limiting groove; 34-Folded edge; 111-The 112-Second housing; 113-Accommodation space; 121-Inner groove; 122-Step groove; 123-Positioning hole; 141-Control panel; 142-Control circuit board; 221-Limiting step; 222-Limiting protrusion; 231-Connecting thread; 111a-First clearance groove; 111b-Groove limiting structure; 112a-Positioning post; 141a-Power on / off button; 141b-Suction force adjustment button. Detailed Implementation

[0041] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0042] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0043] Please see Figures 1-11 This utility model provides a hands-free breast pump according to the following embodiments. This hands-free breast pump belongs to the field of maternal and infant products and can solve the problems of complex structure and large size in the prior art.

[0044] like Figure 1-11 As shown, this utility model provides one type of hands-free breast pump.

[0045] This hands-free breast pump should include at least:

[0046] The main unit 1 includes at least a housing 11, on which a compression chamber 12 is formed;

[0047] The three-way structure 2 is detachably fitted to the housing 11;

[0048] Piston 3 is detachably connected to one of the three-way structures 2 and is limited to the compression chamber 12;

[0049] After assembly, the piston 3 is fitted onto the outer periphery of one of the three-way structures 2 and located inside the compression chamber 12. When the breast pump is working, the piston 3 is compressed or reset inside the compression chamber 12.

[0050] In this embodiment, the first port of the three-way structure 2 is formed with a breast-sucking shield structure 21. Thus, the breast-sucking shield structure 21 covers the user's breast, allowing the nipple to extend into the piston 3.

[0051] In this embodiment, the hands-free breast pump also includes a nipple cover 4 that is detachably fitted with the breast shield structure 21. Thus, during use, the nipple extends from the nipple cover 4 into the piston 3, and the nipple cover 4 can effectively position the nipple and prevent excessive movement.

[0052] Preferably, piston 3 and nipple cap 4 are made of skin-friendly and soft silicone material.

[0053] In this embodiment, the second port of the three-way structure 2 has an annular protrusion 22, and the piston 3 is fitted onto the outer periphery of the annular protrusion 22. This facilitates the fitting of the piston 3.

[0054] In this embodiment, a limiting step 221 is formed at one end of the annular protrusion 22 near the breast shield structure 21, and a stepped groove 122 is formed at the port of the compression chamber 12 to limit and cooperate with the piston 3 and the annular protrusion 22. The piston 3 can be pressed into the stepped groove 122 of the compression chamber 12 under the action of the limiting step 221. Thus, the piston 3 can be limited after assembly, and a clamping force can be provided to press the piston 3 from front to back, achieving good sealing performance.

[0055] Preferably, the piston 3 has a folded edge 34 at one end near the annular protrusion 22, and the folded edge 34 of the piston 3 can be pressed against the step groove 122 of the compression chamber 12 under the action of the limiting step 221.

[0056] In this embodiment, a limiting groove 33 is formed on the inner wall of the piston 3, and a limiting protrusion 222 is formed at the end of the annular protrusion 22 away from the breast shield structure 21, which cooperates with the limiting groove 33. The piston 3 can be pressed into the compression chamber 12 under the action of the limiting protrusion 222. Thus, the piston 3 can be further limited and pressed, providing a pressing force from the inside out, and further enhancing the sealing performance.

[0057] In this embodiment, the housing 11 is provided with a first clearance groove 111a that mates with the three-way structure 2, and the piston 3 is provided with a second clearance groove 32 that mates with the three-way structure 2. This facilitates the assembly of the three-way structure 2 and the housing 11.

[0058] In this embodiment, the hands-free breast pump may further include a milk collector 5. A cap-shaped connector 23 is connected to the third port of the three-way structure 2. The milk collector 5 and the cap-shaped connector 23 are detachably connected. The three-way structure 2 also includes a groove-shaped structure 24 that connects the cap-shaped connector 23 and the annular protrusion 22. The groove-shaped structure 24 serves as a milk delivery groove, and a duckbill valve can be added to its end to ensure that milk is accurately delivered to the milk collector 5.

[0059] Preferably, the inner wall of the cap-shaped connector 23 is provided with a connecting thread 231, and the milk collector 5 is threadedly connected to the cap-shaped connector 23.

[0060] As a further preferred option, the milk collector 5 can be a baby bottle.

[0061] In this embodiment, the inner wall of the piston 3 is provided with a protruding structure 31. Thus, the protruding structure 31 can massage the user's nipple during the process of the piston 3 being contracted and reset, which not only ensures a smoother milk pumping process, but also plays a role in massage and health care. The structure is simple but highly functional.

[0062] Preferably, the protrusion structure 31 consists of one or more pairs of symmetrically arranged protrusions.

[0063] In a further preferred embodiment, the protrusion structure 31 is in two pairs, making the tail end of the piston 3 resemble a petal.

[0064] In this embodiment, the main unit 1 further includes a negative pressure pump 13 installed in the housing 11. The housing 11 includes a first housing 111 and a second housing 112. The first housing 111 and the second housing 112 are detachably connected, and a receiving space 113 is formed between them. The bottom of the first housing 111 has a groove-shaped limiting structure 111b that cooperates with the limiting mechanism 2. The compression chamber 12 is formed on the end face of the first housing 111 away from the second housing 112, and it is formed by the first housing 111 being recessed towards the second housing 112. Specifically, the compression chamber 12 may include a compression chamber housing and an inner groove 121 formed on the end face of the first housing 111. The negative pressure pump 13 is installed in the receiving space 113 and is connected to the inner groove 121 of the compression chamber 12 through a pipe 16.

[0065] Preferably, the first housing 111 and the second housing 112 can be detachably connected by a snap-fit ​​structure. In addition, in order to achieve rapid assembly, this embodiment also provides a positioning structure. Specifically, the positioning structure can be composed of a positioning hole 123 provided in the first housing 111 or the compression chamber 12 housing and a positioning post 112a provided in the second housing 112 and cooperating with the positioning hole 123.

[0066] In order to achieve intermittent suction operation, the main unit 1 in this embodiment also includes a solenoid valve, which is installed in the accommodating space 113 and cooperates with the pipeline 16 to control the opening and closing of the gas path.

[0067] In this embodiment, the main unit 1 includes a control panel 141 and a control circuit board 142. The control circuit board 142 is installed in the receiving space 113 and electrically connected to the negative pressure pump 13. The control panel 141 is installed on the upper end of the housing 11 and cooperates with the control circuit board 142. The control panel 141 is provided with at least a power on / off button 141a and a suction force adjustment button 141b. Thus, the control panel 141 can at least realize functions such as power on / off and suction force adjustment of the negative pressure pump 13, making operation convenient.

[0068] In this embodiment, the main unit 1 also includes a battery 15, which is installed in the receiving space 113 and electrically connected to the negative pressure pump 13 and the control circuit board 142. Thus, the battery 15 can store electrical energy to power the various electrical components of the breast pump, effectively improving the pump's battery life.

[0069] In addition, most existing breast pumps use a circular or spherical compression chamber 12 for installing the airbag. This embodiment uses a compression chamber 12 with an overall approximately square structure. Compared with a circular or spherical structure, this can effectively reduce the space occupied in the lateral direction, which is beneficial for assembly and reducing the overall volume, and can also save material costs.

[0070] As described above, the hands-free breast pump of this invention has the following beneficial effects:

[0071] 1. This utility model provides a novel hands-free breast pump with a unique structure. The breast pump uses a special, detachable piston 3 that can be matched with the three-way structure 2. The piston 3 can not only be used as an airbag, but also be matched with the three-way structure 2 to form a nipple chamber that can accommodate the nipple. That is, the piston 3 integrates the piston chamber and the nipple chamber into one unit, reducing the number of components, greatly simplifying the structure, and reducing the volume. This provides more installation space for installing other components.

[0072] 2. The three-way structure 2 of this utility model is detachable from the main unit 1, and the piston 3 is detachable from the three-way structure 2, which has the advantages of easy disassembly and easy cleaning.

[0073] 3. Due to the special limiting structure of the three-way structure 2, after the three-way structure 2 is removed from the main unit 1, the piston 3 is always connected to the three-way structure 2, which can ensure that the milk will not drip onto the main unit 1.

[0074] 4. The inner wall of the piston 3 has a raised structure 31. During the contraction and repositioning of the piston 3, the raised structure 31 can provide contact massage to the user's nipple, which not only ensures a smoother milk suction process, but also plays a role in massage and health care. The structure is simple but highly functional.

[0075] 5. The setting of the compression chamber 12 not only avoids the deformation of the housing 11 after injection molding, which affects the disassembly and assembly of the three-way structure 2, but also ensures good sealing performance with the three-way structure 2 and the piston 3, preventing loosening and air leakage.

[0076] 6. The compression chamber 12 has an overall near-square structure, which can effectively reduce the space occupied in the lateral direction compared to a circular or spherical structure, which is conducive to assembly and reducing the overall volume, and can also save material costs.

[0077] In summary, the hands-free breast pump of this invention has many advantages such as ease of use, simple structure, small size, easy assembly and disassembly, and easy cleaning.

[0078] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A hands-free breast pump, characterized in that, At least including: The host (1) includes at least a housing (11) on which a compression chamber (12) is formed; The three-way structure (2) is detachably fitted with the housing (11); The piston (3) is detachably connected to one of the three-way structures (2) and is limited to the compression chamber (12); The assembled piston (3) is fitted around one of the three-way structures (2) and located inside the compression chamber (12). When the breast pump is working, the piston (3) is compressed or reset inside the compression chamber (12).

2. The hands-free breast pump according to claim 1, characterized in that, The first passage of the three-way structure (2) forms a breast-sucking shield structure (21).

3. The hands-free breast pump according to claim 2, characterized in that, It also includes a nipple cover (4) that is detachably fitted with the breast shield structure (21).

4. The hands-free breast pump according to claim 2, characterized in that, The second passage of the three-way structure (2) has an annular protrusion (22), and the piston (3) is fitted around the annular protrusion (22).

5. The hands-free breast pump according to claim 4, characterized in that, The annular protrusion (22) near the end of the breast pump structure (21) forms a limiting step (221), and the port of the compression chamber (12) forms a step groove (122) that limits and cooperates with the piston (3) and the annular protrusion (22). The piston (3) can be pressed against the step groove (122) of the compression chamber (12) under the action of the limiting step (221).

6. The hands-free breast pump according to claim 5, characterized in that, The inner wall of the piston (3) forms a limiting groove (33), and the end of the annular protrusion (22) away from the breast shield structure (21) forms a limiting protrusion (222) that cooperates with the limiting groove (33). The piston (3) can be pressed against the compression chamber (12) under the action of the limiting protrusion (222).

7. The hands-free breast pump according to any one of claims 1-6, characterized in that, The housing (11) is provided with a first clearance groove (111a) that cooperates with the three-way structure (2), and the piston (3) is provided with a second clearance groove (32) that cooperates with the three-way structure (2).

8. The hands-free breast pump according to any one of claims 4-6, characterized in that, It also includes a milk collector (5), the third port of the three-way structure (2) is connected to a cap-shaped connector (23), the milk collector (5) and the cap-shaped connector (23) are detachably connected, and the three-way structure (2) also includes a groove-shaped structure (24) that connects the cap-shaped connector (23) and the annular protrusion (22) respectively.

9. The hands-free breast pump according to any one of claims 1-6, characterized in that, The inner wall of the piston (3) is provided with a protruding structure (31).

10. The hands-free breast pump according to any one of claims 1-6, characterized in that, The host (1) also includes a negative pressure pump (13) installed in the housing (11). The housing (11) includes a first housing (111) and a second housing (112). The first housing (111) and the second housing (112) are detachably connected and a receiving space (113) is formed between them. The bottom of the first housing (111) has a groove-shaped limiting structure (111b) that cooperates with the limiting of the three-way structure (2). The compression chamber (12) is formed on the end face of the first housing (111) away from the second housing (112) and is formed by the first housing (111) being recessed towards the second housing (112). The negative pressure pump (13) is installed in the receiving space (113) and is connected to the compression chamber (12) through a pipe (16).

Images