Wearable breast pump

Abstract

A wearable breast pump comprises main body silica gel, a feeding bottle main body and a one-way valve, the front portion of the main body silica gel is a horn mouth, the rear portion of the main body silica gel is a cylinder structure, a contraction diaphragm is located in the middle of the cylinder structure and corresponds to the horn mouth, and a breast pumping chamber is formed in the cylinder structure and in front of the contraction diaphragm. An air cylinder silica gel contraction chamber is formed between the rear end of the contraction diaphragm and the feeding bottle body, a one-way valve assembly hole is formed in the cylinder structure and between the horn mouth and the contraction diaphragm, and the inner wall of the milk sucking chamber is of a structure which inclines towards the one-way valve assembly hole and is large in middle inner diameter and small in two-end inner diameter. A protruding ring inserted into the rear end of the cylinder structure is formed in the middle of the inner wall of the feeding bottle body, and the protruding ring is inserted into the cylinder structure and is matched, inserted and positioned with the cylinder structure through an inclined face. The bra is reasonable and compact in structure, effectively solves the problem that milk cannot smoothly flow into the milk storage cavity, and is good in sealing effect, small in size, capable of being worn in the bra and convenient to disassemble, assemble and clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of maternal and child products, and relates to a breast pump, in particular to a wearable breast pump. BACKGROUND

[0002] A breast pump is a tool for expressing milk accumulated in the mammary glands. The electric breast pump on the market now mainly pulls the breast by changing the internal air pressure of the tee joint to play the role of breast pumping. The wearable breast pump can be worn in underwear and carried around, and is convenient to use. The accessories of the traditional wearable breast pump include a tee joint, a contraction cylinder silica gel, a check valve, a feeding bottle, a skin-friendly pad silica gel, etc. The number of parts is large, and it is troublesome to disassemble and clean. In order to facilitate disassembly and improve user experience, a breast pump with simple structure and convenient assembly has been developed.

[0003] According to the search, the existing Chinese patent No. CN202310872149.8 "Breast pump" includes: a main body silica gel, the front part of the main body silica gel is a horn mouth, the rear part is a tee joint structure, and the middle part of the main body silica gel has a contraction diaphragm with a thickness thinner than the thickness of the periphery of the main body silica gel. The contraction diaphragm is in the form of a bowl structure, the position of the contraction diaphragm corresponds to the horn mouth, the horn mouth extends inwardly with a cylinder movable membrane, a check valve seat is arranged between the horn mouth and the cylinder movable membrane; a feeding bottle main body, the opening periphery of the feeding bottle main body and the periphery of the main body silica gel are matched and connected together, so that the lower part of the feeding bottle main body is a liquid storage cavity, and the side cavity of the feeding bottle main body and the cylinder movable membrane cooperate to form a cylinder movable chamber, and the outside of the cylinder movable chamber is provided with a gas nozzle connector connected with a breast pump host; a check valve is arranged in the check valve seat to guide the liquid in the horn mouth to the liquid storage cavity. The structure combines the contraction cylinder silica gel, the horn mouth silica gel and the tee joint structure into one two-way main body silica gel, so that the structure is simpler and convenient to assemble and disassemble. However, the contraction diaphragm is usually in the form of a bowl or a flat surface, and the rebound is easily affected by the bending steps to cause jamming, and the rebound noise is also large.

[0004] Furthermore, Chinese patent number CN202311421292.1, "A Wearable Breast Pump with a Contraction Diaphragm Structure," describes a breast pump assembled from a silicone body, a feeding bottle body, and a one-way valve. The silicone body has a bell-shaped front and a cylindrical structure at the rear. The contraction diaphragm is located in the middle of the cylindrical structure, corresponding to the bell-shaped front. The front end of the contraction diaphragm is a flat circular diaphragm, the outer wall of which seals against the inner wall of the cylindrical structure. The circular diaphragm is radially and evenly provided with a number of strip holes. Hollow ribs extend backward from the strip holes. The ribs converge at the center of the circular diaphragm to form a connected cavity. A milking chamber is formed within the cylindrical structure and in front of the contraction diaphragm. A cylinder silicone contraction chamber is formed between the rear end of the contraction diaphragm and the feeding bottle body. This contraction diaphragm is not prone to jamming and is quiet when it rebounds. However, the inner wall of the milking chamber in front of the contraction diaphragm is cylindrical, which makes it difficult for the sucked milk to flow smoothly into the milk storage chamber. Further structural improvements are needed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a wearable breast pump with a reasonable and compact structure and smooth milk sucking in response to the above technical status quo.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a wearable breast pump, including a main body silicone, a bottle body and a one-way valve, the front part of the main body silicone is a bell mouth, and the rear part is a cylindrical structure, the contraction diaphragm is located in the middle part of the cylindrical structure and corresponds to the bell mouth, a milk suction chamber is formed in the cylindrical structure and in front of the contraction diaphragm, and a cylinder silicone contraction chamber is formed between the rear end of the contraction diaphragm and the bottle body, which is characterized in that a one-way valve assembly hole is opened on the cylindrical structure and between the bell mouth and the contraction diaphragm, the inner wall of the milk suction chamber is a structure with a large inner diameter in the middle part inclined toward the one-way valve assembly hole and a small inner diameter at both ends, a convex ring is provided in the middle part of the inner wall of the bottle body and is plugged into the rear end of the cylindrical structure, the convex ring is inserted into the cylindrical structure and is plugged into and positioned with the cylindrical structure through inclined surface matching.

[0007] As an improvement, the outer diameter of the convex ring matches the inner diameter of the cylindrical structure, the open end of the convex ring is an inwardly inclined slope, and a slope groove is formed on the inner wall of the cylindrical structure to cooperate with the slope end of the convex ring.

[0008] Furthermore, a transfer interface platform is laterally provided in the middle of one side of the convex ring to connect with the bottle body, a corresponding notch is provided on one side of the cylindrical structure, and an air nozzle interface connected to the milk pump host is formed at the upper end of the transfer interface platform of the convex ring.

[0009] Further, the contraction diaphragm is integrated with the main body silica gel, the thickness of the contraction diaphragm is less than that of the main body silica gel, the front end of the contraction diaphragm is a planar circular diaphragm, the outer wall of the circular diaphragm is sealed against the inner wall of the cylindrical structure, a plurality of strip-shaped holes are uniformly and radially arranged on the circular diaphragm, hollow ribs are extended backward at the strip-shaped holes, the ribs form a conical structure at the rear end of the circular diaphragm, and the ribs meet at the center of the circular diaphragm to form a connected cavity.

[0010] Further, the ribs are three, the strip-shaped holes on the circular diaphragm are Y-shaped, the connected cavity formed by the ribs is Y-shaped, and the included angle between the ribs is 120°.

[0011] Further, the one-way valve is arranged in the one-way valve assembly hole, and the silica gel wall thickness of the front suction room of the contraction diaphragm is increased.

[0012] Further, an annular clamping groove is formed at the peripheral rear end face of the main body silica gel, the front side open end of a feeding bottle main body is inserted and positioned in the annular clamping groove, and the feeding bottle main body and the main body silica gel are detachably connected together, so that the feeding bottle main body and the main body silica gel form a milk storage cavity after being connected.

[0013] Finally, a milk outlet is arranged at the upper front side of the feeding bottle main body, a dustproof cover is arranged at the upper end of the horn mouth of the main body silica gel, a contact point is protruded on the dustproof cover and has a certain ventilation gap with the feeding bottle main body after the dustproof cover is covered, and a positioning hole for positioning the dustproof cover is further arranged at the horn mouth of the main body silica gel, and a corresponding positioning protruding column is arranged on the back face of the dustproof cover.

[0014] Compared with the prior art, the inner wall of the milk suction room is designed as an inner concave inclined surface inclined to the middle part, the inhaled milk can quickly flow into the milk storage cavity along the inclined surface through the one-way valve, and the milk is prevented from remaining in the milk suction room; the cylindrical structure is inserted and matched with the convex ring of the feeding bottle main body through the inclined surface, so that the sealing performance is better; the dustproof cover is arranged at the milk outlet, the dustproof cover has a dustproof effect, and the contact point arranged on the dustproof cover has a ventilation function when the dustproof cover is covered. The utility model has the advantages of reasonable and compact structure, effectively solves the problem that the milk cannot flow into the milk storage cavity smoothly, has good sealing effect, is small in size, can be worn in a bra, and is convenient to disassemble, assemble and clean. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic view of an embodiment of the utility model;

[0016] Figure 2 FIG. 2 is an exploded view of the utility model; Figure 1

[0017] Figure 3 FIG. 4 is a longitudinal sectional view of the utility model embodiment;

[0018] Figure 4 FIG. 5 is a front view of the utility model embodiment.​Figure 3 A local enlarged view of the middle A region;

[0019] Figure 5 For Figure 3 A sectional view of the joint between the silicone main body and the feeding bottle main body;

[0020] Figure 6 For the structure diagram of the main body silicone;

[0021] Figure 7 For Figure 1 The back structure schematic diagram. DETAILED DESCRIPTION

[0022] The utility model will be described further in detail below in combination with the drawings.

[0023] As Figures 1 to 7 shown, a wearable breast pump, comprising a main body silicone 1, a feeding bottle main body 2 and a one-way valve 3, the front part of the main body silicone 1 is a horn mouth 11, the rear part is a cylindrical structure 12, a contraction diaphragm 13 is located at the middle part of the cylindrical structure 12 corresponding to the horn mouth 11, the inside of the cylindrical structure 12 and the front of the contraction diaphragm 13 form a breast pumping chamber 10, the rear end of the contraction diaphragm 13 and the feeding bottle main body 2 form a cylinder silicone contraction chamber 20, a one-way valve assembly hole 14 is arranged between the cylindrical structure 12, the horn mouth 11 and the contraction diaphragm 13, the inner wall of the breast pumping chamber 10 is inclined to the one-way valve assembly hole 14, and the middle part has a large inner diameter, and the two ends have a small inner diameter, the middle part of the inner wall of the feeding bottle main body 2 is provided with a convex ring 21 inserted with the rear end of the cylindrical structure 12, and the convex ring 21 is inserted in the cylindrical structure 12 and positioned by the inclined surface cooperation of the cylindrical structure 12.

[0024] Specific structure is: the outer diameter of the convex ring 21 matches with the inner diameter of the cylindrical structure 12, the opening end of the convex ring 21 is an inwardly inclined slope 22, the inner wall of the cylindrical structure 12 is formed with a slope groove 15 matched with the end of the slope 22 of the convex ring 21, and the two are inserted and matched through the slope to form a seal to prevent gas leakage. The convex ring 21 is provided with a transition interface platform 23 on one side of the middle part, which is connected with the milk bottle body 2, one side of the cylindrical structure 12 is provided with a corresponding notch 18, and the upper end of the transition interface platform 22 of the convex ring 21 is formed with a gas nozzle interface 24 connected with the breast pump host. The contraction diaphragm 13 is an integral part of the main body silica gel 1, the thickness of the contraction diaphragm 13 is less than the thickness of the main body silica gel 1, the front end of the contraction diaphragm 13 is a planar circular diaphragm, the outer wall of the circular diaphragm is sealed against the inner wall of the cylindrical structure 21, a plurality of strip-shaped holes 130 are uniformly provided on the circular diaphragm in a radial manner, hollow ribs 131 extend backward at the strip-shaped holes 130, the ribs 131 form a conical structure at the rear end of the circular diaphragm, and the ribs 131 converge at the center of the circular diaphragm to form a connected cavity B. The ribs 131 of the embodiment are three, the strip-shaped holes 130 on the circular diaphragm are Y-shaped, the connected cavity B formed by the intersection of the ribs 131 is Y-shaped, and the included angle between the ribs is 120°. When the pump is working, the side wall of the rib 131 will expand into a spherical shape due to negative pressure. The one-way valve 3 is arranged in the one-way valve assembly hole 14, and the silica gel wall thickness of the front breast pumping chamber of the contraction diaphragm 13 is increased to avoid the collapse of the breast pumping chamber 10 due to negative pressure.

[0025] The outer peripheral rear end surface of the main body silica gel 1 is formed with an annular clamping groove 17 for positioning the front side opening end of the milk bottle body 2, and the milk bottle body 2 and the main body silica gel 1 are detachably connected together, and the milk bottle body 2 and the main body silica gel 1 are connected to form a milk storage cavity 30. The upper end of the milk bottle body 2 is provided with a milk outlet 25, the upper end of the trumpet mouth 11 of the main body silica gel 1 is provided with a corresponding dust cover 4, the dust cover 4 is provided with a contact point 41 for allowing the dust cover 4 to have a certain air gap with the milk bottle body 2 after being covered, and the dust cover 4 is provided with a corresponding positioning protruding column 42 on the back surface. When the dust cover 4 is not used, the positioning protruding column 42 is inserted into the positioning hole 16 for positioning.

[0026] When assembling, the one-way valve 3 is assembled on the main body silica gel 1, and then the main body silica gel 1 is assembled on the milk bottle body 2.

[0027] In use, the horn mouth 11 of the main body silica gel 1 is aligned with the breast, the breast pump main machine is turned on, automatic breast pumping can be realized, the milk sucked in flows into the milk storage cavity 30 through the one-way valve 3, and due to the inner wall of the breast pumping chamber 10 being designed as an inner concave inclined surface inclined to the middle part, the milk in the breast pumping chamber 10 can flow into the milk storage cavity 30 along the inclined surface quickly, so that the milk is prevented from remaining in the breast pumping chamber 10. A dustproof cover is arranged at the milk outlet, so that the dustproof effect can be achieved, and air permeability can be realized.

[0028] The preferred embodiments of the present application are described above, it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A wearable breast pump comprising a silicone body, a feeding bottle body, and a one-way valve. The front portion of the silicone body is a bell-shaped opening, and the rear portion is a cylindrical structure. A contraction diaphragm is located in the middle of the cylindrical structure, corresponding to the bell-shaped opening. A milking chamber is formed within the cylindrical structure and in front of the contraction diaphragm. A cylinder silicone contraction chamber is formed between the rear end of the contraction diaphragm and the feeding bottle body. The invention is characterized by: A one-way valve assembly hole is provided on the cylindrical structure between the bell mouth and the contraction diaphragm. The inner wall of the milk suction chamber is inclined toward the one-way valve assembly hole, with a large inner diameter in the middle and small inner diameters at both ends. A convex ring is formed in the middle of the inner wall of the feeding bottle body and is plugged into the rear end of the cylindrical structure. The convex ring is inserted into the cylindrical structure and is plugged into the cylindrical structure through inclined surfaces to position it.

2. The wearable breast pump according to claim 1, wherein: The outer diameter of the convex ring matches the inner diameter of the cylindrical structure. The open end of the convex ring is an inwardly inclined slope. The inner wall of the cylindrical structure is formed with a slope groove that cooperates with the slope end of the convex ring.

3. The wearable breast pump according to claim 2, wherein: A transfer interface platform is laterally provided in the middle of one side of the convex ring to connect with the bottle body, and a corresponding notch is provided on one side of the cylindrical structure. An air nozzle interface connected to the milk pump host is formed on the convex ring and the upper end of the transfer interface platform.

4. The wearable breast pump according to claim 3, wherein: The shrinkage diaphragm is an integral part of the main silicone, the thickness of the shrinkage diaphragm is less than the thickness of the main silicone, the front end of the shrinkage diaphragm is a flat circular diaphragm, the outer wall of the circular diaphragm is sealed against the inner wall of the cylindrical structure, and a number of strip holes are radially and evenly opened on the circular diaphragm. Hollow ribs extend backward from the strip holes, and the ribs form a conical structure at the rear end of the circular diaphragm. The ribs intersect in the center of the circular diaphragm to form a connected cavity.

5. The wearable breast pump according to claim 4, wherein: There are three ribs, the strip-shaped holes on the circular diaphragm are Y-shaped, the interconnected cavity formed by the intersection of the ribs is a Y-shaped cavity, and the angle between the ribs is 120°.

6. The wearable breast pump according to claim 1, wherein: The one-way valve is arranged in the one-way valve assembly hole, and the thickness of the silica gel wall of the milk suction chamber in front of the contraction diaphragm is thickened.

7. The wearable breast pump according to any one of claims 1 to 6, characterized in that: The outer rear end surface of the main body silicone is formed with an annular groove for inserting and positioning the front open end of the bottle body. The bottle body and the main body silicone are detachably connected together to form a milk storage cavity after the bottle body and the main body silicone are connected.

8. The wearable breast pump according to any one of claims 1 to 6, characterized in that: A milk outlet is provided on the front upper end of the feeding bottle body, a corresponding dust cover is provided on the upper end of the bell mouth of the main body silicone, and a contact point is convexly provided on the dust cover so that there is a certain air permeable gap between the dust cover and the feeding bottle body when the dust cover is closed; a positioning hole for positioning the dust cover is also provided at the bell mouth of the main body silicone, and a corresponding positioning convex column is provided on the back of the dust cover.

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