A shrinkable diaphragm structure for a wearable breast pump

Abstract

A shrinkable diaphragm structure for a wearable breast pump is disclosed. The breast pump is assembled from a main silicone body, a bottle body, and a one-way valve. The front of the main silicone body is a flared opening, and the rear is a cylindrical structure. The shrinkable diaphragm is located in the middle of the cylindrical structure, corresponding to the flared opening. The front end of the shrinkable diaphragm is a flat circular diaphragm, and the outer wall of the circular diaphragm seals against the inner wall of the cylindrical structure. Several radially evenly distributed strip-shaped holes are formed on the circular diaphragm. Hollow ribs extend rearward from the strip-shaped holes, and the ribs converge at the center of the circular diaphragm to form a connected cavity. A milk-feeding chamber is formed in front of the shrinkable diaphragm within the cylindrical structure, and a cylinder silicone shrinkage chamber is formed between the rear end of the shrinkable diaphragm and the bottle body. This invention has a reasonable and compact structure, effectively solving the problems of easy rebound and jamming of the shrinkable diaphragm and high noise. At the same time, it is small in size, can be worn inside a bra, has fewer parts, low processing cost, and is easy to disassemble, assemble, and clean.

Description

Technical Field

[0001] This invention relates to the field of maternal and infant products technology, and to a breast pumping device, specifically to a shrinkable diaphragm structure for a wearable breast pump. Background Technology

[0002] A breast pump is a tool used to express breast milk accumulated in the mammary glands. Currently, electric breast pumps on the market primarily work by changing the internal air pressure of a three-way valve to pull on the breast and achieve the effect of milk extraction. Wearable breast pumps are convenient to use and can be worn inside underwear. Traditional wearable breast pumps have accessories such as a three-way valve, a silicone constriction cylinder, a one-way valve, a bottle, and a silicone skin-friendly pad, making disassembly, assembly, and cleaning relatively cumbersome due to the large number of parts. To facilitate disassembly and assembly and improve user experience, breast pumps with simpler structures and easier assembly have been developed.

[0003] Upon investigation, the existing Chinese patent CN202310872149.8, entitled "A Breast Pumping Device," includes: a main silicone body, the front of which is a flared opening and the rear of which is a three-way structure. A shrinkage diaphragm, thinner than the outer periphery of the main silicone body, is located in the middle of the main silicone body. The shrinkage diaphragm has a bowl-shaped structure and its position corresponds to the flared opening. A cylinder-moving diaphragm extends inward from the flared opening, and a one-way valve seat is located between the flared opening and the cylinder-moving diaphragm; a baby bottle body, the outer periphery of which is adapted to and connected to the outer periphery of the main silicone body, so that the lower part of the baby bottle body is a liquid storage chamber, and the side cavity of the baby bottle body and the cylinder-moving diaphragm cooperate to form a cylinder-moving chamber. An air nozzle connector for connecting to the breast pumping unit is located outside the cylinder-moving chamber; and a one-way valve, located within the one-way valve seat, guides the liquid in the flared opening to the liquid storage chamber. This structure combines the shrink cylinder silicone, the flared mouth silicone, and the three-way structure into a two-way main silicone, making the structure simpler and easier to assemble and disassemble. However, its shrink diaphragm is usually bowl-shaped or flat, and the rebound is easily affected by bending steps, which can cause jamming. Moreover, the rebound noise is also relatively large. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a shrinkable diaphragm structure for a wearable breast pump that is reasonably compact, has good elasticity and is not prone to jamming, and has low noise, in view of the above-mentioned technical status.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a shrinkable diaphragm structure for a wearable breast pump, the breast pump including a main silicone body, a bottle body and a one-way valve, characterized in that: the front part of the main silicone body is a flared mouth and the rear part is a cylindrical structure, the shrinkable diaphragm is located in the middle part of the cylindrical structure and corresponds to the flared mouth, the outer wall of the shrinkable diaphragm is sealed to or sealed against the inner wall of the cylindrical structure, a plurality of strip holes are radially opened from the center on the shrinkable diaphragm, the inner sides of the strip holes are connected together, the upper wall, lower wall and outer wall of the strip holes extend backward to form a hollow rib, the outer wall of the hollow rib moves towards the center during the backward extension process, and finally the hollow ribs converge at the center to form a connected cavity, a milk suction chamber is formed in front of the shrinkable diaphragm in the cylindrical structure, and a cylinder silicone shrinkable chamber is formed between the rear end of the shrinkable diaphragm and the bottle body.

[0006] Preferably, the front end of the shrinkage diaphragm is a circular diaphragm, and the hollow ribs are evenly distributed on the circular diaphragm with the same included angle, which facilitates uniform deformation.

[0007] Furthermore, the shrink diaphragm and the main silicone body are integral parts, and the thickness of the shrink diaphragm is less than the thickness of the main silicone body. The hollow ribs form a sloping structure in the middle and rear section of the shrink diaphragm. When the pump is working, the side walls of the hollow ribs and their upper and lower walls will expand into a spherical cavity due to negative pressure, which is convenient for assembly and elastic deformation.

[0008] Preferably, there are 2 to 5 hollow ribs, the total thickness of a single hollow rib is 3 to 9 mm, the internal clearance of a single hollow rib is 2 to 8 mm, the length of a single hollow rib is 20 to 40 mm, and the included angle between the hollow ribs is 72° to 180°.

[0009] Preferably, there are 3 hollow ribs, the strip holes on the shrinkage diaphragm are Y-shaped, the interconnected cavities formed by the intersection of the hollow ribs are Y-shaped cavities, the total thickness of a single hollow rib is 4mm, and the internal clearance of a single hollow rib is 2.8mm.

[0010] Furthermore, a one-way valve assembly hole is provided on the cylindrical structure of the main silicone body, between the flared opening and the shrink diaphragm. The one-way valve is installed in the one-way valve assembly hole, and the silicone wall thickness of the milk suction chamber in front of the shrink diaphragm is increased to facilitate assembly.

[0011] Furthermore, the outer periphery of the opening of the bottle body and the outer periphery of the main silicone body are adapted to each other and detachably connected together. The lower part of the bottle body is a liquid storage chamber, and the outside of the cylinder silicone shrink chamber is provided with an air nozzle connector that connects to the breast pump host, which facilitates assembly and cleaning.

[0012] Finally, the top of the main silicone body is provided with a milk discharge hole / vent hole.

[0013] Compared with existing technologies, the advantages of this invention are as follows: the shrink diaphragm is designed as a circular diaphragm composed of multiple hollow ribs. The ribs converge at the center of the circular diaphragm to form a connected cavity. When the pump is working, the sidewalls and upper and lower walls of the ribs expand into a spherical chamber due to negative pressure. This invention has a reasonable and compact structure, effectively solving the problems of easy rebound and jamming of the shrink diaphragm and high noise. At the same time, it is small in size, can be worn inside a bra, has fewer parts, low processing cost, and is easy to disassemble and clean. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0015] Figure 2 for Figure 1 Exploded view;

[0016] Figure 3 A schematic diagram of the front structure of the main silicone material;

[0017] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle;

[0018] Figure 5 for Figure 3 Cross-sectional view along line XX;

[0019] Figure 6 A schematic diagram of the back structure of the main silicone material;

[0020] Figure 7 for Figure 6 A magnified view of a portion of region B in the middle;

[0021] Figure 8 for Figure 1 A three-dimensional sectional view. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-8As shown, a shrinkable diaphragm structure for a wearable breast pump is provided. The breast pump is mainly assembled from a main silicone body 1, a bottle body 2, and a one-way valve 3. The front of the main silicone body 1 is a flared mouth 11, and the rear is a cylindrical structure 12. A simple cylindrical structure can usually be used. The shrinkable diaphragm 4 is located in the middle of the cylindrical structure 12, corresponding to the flared mouth 11. The front end of the shrink diaphragm 4 is usually a circular diaphragm 41. The outer periphery of the circular diaphragm 41 is sealed to or in contact with the inner wall of the cylindrical structure 12. The surface of the circular diaphragm 41 has an inwardly concave arc surface 44. Several strip holes 100 are radially opened from the center on the circular diaphragm 41. The inner sides of the strip holes 100 are connected together at the center. The upper wall, lower wall and outer wall of the strip holes 100 extend backward to form a hollow rib 42. As the hollow rib 42 extends backward, the outer wall moves towards the center. Finally, the ribs 42 converge at the center of the circular diaphragm 41 to form a connected cavity. The milk suction chamber 10 is formed in front of the shrink diaphragm 4 inside the cylindrical structure 12. The cylinder silicone shrink chamber 20 is formed between the rear end of the shrink diaphragm 4 and the bottle body 2. To ensure better and more uniform deformation of the shrinkage diaphragm 4, the hollow ribs 42 are typically evenly distributed at the same angle on the circular diaphragm 41. The upper wall 101, lower wall 102, and outer wall 103 of the strip-shaped hole can be transitioned with curved surfaces.

[0024] The specific structure is as follows: the shrinking diaphragm 4 and the main silicone 1 are made as a single piece. The thickness of the shrinking diaphragm 4 is less than the thickness of the main silicone 1 to facilitate its deformation. Hollow ribs 42 form an oblique structure 43 in the middle and rear section behind the circular diaphragm 41. When the pump is working, the side walls and upper and lower walls of the hollow ribs 42 will expand into a spherical chamber due to negative pressure. There can be 2 to 5 hollow ribs 42. The total thickness D of a single hollow rib 42 is 3 to 9 mm. The internal clearance d of a single hollow rib 42 is 2 to 8 mm. The length L of a single hollow rib 42 is 20 to 40 mm. The included angle between the hollow ribs 42 is 72° to 180°.

[0025] In this embodiment, there are three hollow ribs 42. The strip holes 100 on the circular diaphragm 41 are Y-shaped. The interconnected cavities formed by the intersection of the hollow ribs 42 are also Y-shaped. The total thickness D of a single hollow rib 42 is 4mm. The internal clearance d of a single hollow rib 42 is 2.8mm. The length L of a single hollow rib 42 is 30mm. The included angle between the hollow ribs 42 is 120°.

[0026] A one-way valve assembly hole 13 is provided on the cylindrical structure 12 of the main silicone 1 between the flared mouth and the shrinking diaphragm 4. The one-way valve 3 is installed in the one-way valve assembly hole 13. The silicone wall thickness H of the milk suction chamber 10 in front of the shrinking diaphragm 4 is increased to 5.6mm to prevent the milk suction chamber 10 from collapsing due to negative pressure.

[0027] The outer periphery of the opening of the bottle body 2 and the outer periphery of the main silicone body 1 are adapted to each other and detachably connected together. The lower part of the bottle body 2 is the liquid storage chamber 30. The end of the shrinkage diaphragm 4 on the main silicone body 1 away from the flared mouth 11 is press-fitted with the inner ring of the bottle body 2 to form a seal to prevent air leakage. The outside of the cylinder silicone shrinkage chamber 20 is provided with an air nozzle connector 21 for connecting to the breast pump host. The air nozzle structure 21 can be directly connected to the wearable host or connected to the split breast pump through a tube. The top of the main silicone body 1 is provided with a milk pouring hole / vent hole 14. Correspondingly, the top of the bottle body 2 is provided with an opening structure. The milk pouring hole / vent hole 14 of the main silicone body 1 fits onto the opening structure to form a complete milk pouring hole / vent hole 14, and the two are assembled and positioned together.

[0028] During assembly, first assemble the one-way valve 31 onto the main silicone body, and then assemble the main silicone body 1 onto the bottle body 2.

[0029] When using, align the flared opening 11 of the main silicone body 1 with the breast 5, such as... Figure 8 As shown, turning on the breast pump unit enables automatic milk expression. Because the breast pump has a simpler structure and smaller size, it can be worn inside a bra. Moreover, the shrink diaphragm used in this embodiment solves the problems of rebound jamming and loud rebound noise of traditional shrink diaphragms. It has a quieter rebound sound than traditional shrink diaphragms, is less prone to jamming, and is easy to disassemble and clean.

[0030] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A shrinkable diaphragm structure for a wearable breast pump, the breast pump comprising a silicone body, a bottle body, and a one-way valve, characterized in that: The main silicone body has a flared front and a cylindrical rear. The shrink diaphragm is located in the middle of the cylindrical structure, corresponding to the flared front. The outer wall of the shrink diaphragm is sealed to or in contact with the inner wall of the cylindrical structure. The shrink diaphragm has several radial holes from the center, and the inner sides of the holes are connected. The upper, lower, and outer walls of the holes extend backward to form a hollow rib. As the hollow rib extends backward, the outer wall moves towards the center. Finally, the hollow ribs converge at the center to form a connected cavity. A milk-feeding chamber is formed in front of the shrink diaphragm within the cylindrical structure. A cylinder silicone shrink chamber is formed between the rear end of the shrink diaphragm and the main body of the bottle.

2. The shrinkable diaphragm structure according to claim 1, characterized in that: The front end of the shrinkage diaphragm is a circular diaphragm, and the hollow ribs are evenly distributed on the circular diaphragm at the same angle.

3. The shrinkable diaphragm structure according to claim 1, characterized in that: The shrink diaphragm and the main silicone body are integrated. The thickness of the shrink diaphragm is less than that of the main silicone body. The hollow ribs form a sloping structure in the middle and rear section of the shrink diaphragm. When the pump is working, the side walls of the hollow ribs and their upper and lower walls will expand into a spherical cavity due to negative pressure.

4. The shrinkable diaphragm structure according to claim 1, characterized in that: The hollow ribs are 2 to 5 in number, the total thickness of a single hollow rib is 3 to 9 mm, the internal clearance of a single hollow rib is 2 to 8 mm, the length of a single hollow rib is 20 to 40 mm, and the included angle between the hollow ribs is 72° to 180°.

5. The shrinkable diaphragm structure according to claim 4, characterized in that: There are 3 hollow ribs. The strip holes on the shrinkage diaphragm are Y-shaped. The interconnected cavities formed by the intersection of the hollow ribs are Y-shaped cavities. The total thickness of a single hollow rib is 4mm, and the internal clearance of a single hollow rib is 2.8mm.

6. The shrinkable diaphragm structure according to claim 1, characterized in that: The main silicone tube has a one-way valve assembly hole between the flared end and the shrink diaphragm. The one-way valve is installed in the one-way valve assembly hole, and the silicone wall of the milk suction chamber in front of the shrink diaphragm is thickened.

7. The shrinkable diaphragm structure according to any one of claims 1 to 6, characterized in that: The outer periphery of the opening of the bottle body and the outer periphery of the silicone body are adapted to each other and are detachably connected together. The lower part of the bottle body is a liquid storage chamber, and the outside of the silicone shrink chamber of the cylinder is provided with an air nozzle connector that is connected to the breast pump host.

8. The shrinkable diaphragm structure according to any one of claims 1 to 6, characterized in that: The top of the main silicone body is provided with a milk discharge hole / vent hole.

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