Special negative pressure chamber assembly for breast pump

Abstract

The utility model provides a special negative pressure chamber assembly for a breast pump, which comprises a chamber enclosed by a front cover and a rear cover, and further comprises an anti-reflux diaphragm made of a flexible elastic material, arranged between the front cover and the rear cover, and connected with the front cover and the rear cover in a sealing manner; a sealing cavity is defined by the anti-reflux diaphragm and the rear cover; the three-way valve is arranged on the rear cover and communicated with the sealing cavity; the negative pressure pump is communicated with the three-way valve and is used for intermittently extracting air from the sealing cavity; the electromagnetic valve is communicated with the three-way valve and is used for intermittently deflating the sealing cavity; and the negative pressure pump exhausts air and the electromagnetic valve deflates air alternately. The negative pressure cavity assembly special for the breast pump is reasonable in structural design, light in weight and small in size, the weight and the size of the breast pump are reduced on the whole when the negative pressure cavity assembly is arranged in the breast pump, and the negative pressure cavity assembly is light in weight, small in size, convenient to wear in a hidden mode and comfortable and convenient to wear.

Description

Technical Field

[0001] The utility model relates to the technical field of breast pumps, in particular to a special negative pressure chamber component for breast pumps. Background Art

[0002] When the mother is unable to stay with the baby or is not in a physical condition to breastfeed the baby, a breast pump is usually used to extract milk from the breast and store it in a bottle to feed the baby.

[0003] Currently, the common breast pumps on the market have a cup attached to the breast, an electric main unit and a milk bottle for storing milk. Such breast pumps are large in size and inconvenient to carry. They cannot be hidden in the mother's clothes when in use, and need to be hidden in a private space. They are not suitable for direct use in public places, etc. For working mothers, it is especially inconvenient to use, which reduces the user experience.

[0004] For this reason, people have developed a wearable breast pump. The wearable breast pump is hidden in the underwear, which solves the problem that the traditional breast pump is large in size, inconvenient to carry, and not suitable for use in public places. However, in the existing wearable breast pump, a multi-purpose cylinder generates negative pressure in the breast pump to suck milk. For example, the utility model with announcement number CN208330890U9 discloses a special piston cylinder for a breast pump based on planetary gear operation, including a motor, a planetary bracket, a planetary gear, a sun gear, a rotating drum, a positioning plate, a guide rod, a cylinder, and a piston; the outer ring of the small bearing one is fixedly arranged in the planetary bracket, the motor output shaft passes through the inner ring of the small ball bearing one and is connected to the sun gear, a plurality of planetary gears are evenly arranged outside the sun gear, the planetary gears are meshed with the gears on the inner side of the rotating drum, a positioning plate is arranged inside the rotating drum, the outer ring of the large ball bearing one is fixedly arranged on the inner side of the rotating drum, a cylinder is arranged on the right side of the rotating drum, the outer side of the large ball bearing two is fixedly arranged on the inner side of the cylinder, the inner ring of the large ball bearing two is fixedly connected to the outer side of the right end of the rotating drum, the sun gear is driven to rotate by the operation of the motor, the rotation of the sun gear causes the planetary gears evenly arranged around the sun gear to rotate, and the rotation of the rotating drum causes the piston to move left and right. The Chinese utility model patent with publication number CN208770500U discloses a manual and automatic breast pump structure, which includes a three-way breast pump body, the three-way breast pump body includes a milk suction interface, a cylinder interface and a bottle connection port, the cylinder interface is provided with a cylinder silicone with a through hole, the outer surface of the cylinder interface is provided with a buckle body, and an upper cover is detachably installed in cooperation with the cylinder interface, the inner wall of the interface of the upper cover is provided with a buckle groove matched with the buckle body of the cylinder interface, and the side of the upper cover is also provided with a socket, and the upper cover is connected to the suction tube of the breast pump host through the socket; the outer side of the cylinder interface is provided with a shaft column, and a handle is detachably installed in cooperation with the shaft column, the inner wall of the handle is provided with a shaft hole for the shaft column to be inserted, and the front end of the handle is buckled and connected with a pull rod passing through the cylinder silicone.

[0005] Although the cylinder can generate good negative pressure, it is heavy and large in size, which makes the breast pump heavy and large in size, making it uncomfortable to wear. In addition, the negative pressure generated by the cylinder is large, which puts excessive pressure on the breast, resulting in poor lactation effect and poor user experience. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the utility model provides a negative pressure chamber assembly specifically for a breast pump, which overcomes the defects of the existing breast pump cylinder, such as "heavy weight, large volume, large suction force, and poor lactation effect". Through ingenious and reasonable structural design, the negative pressure chamber has a small volume and light weight, the negative pressure can be adjusted during use, the suction force is gentle, the milk suction efficiency is high, and the user experience is good.

[0007] The technical solution of the utility model is as follows: a negative pressure chamber assembly dedicated to a breast pump, comprising a chamber surrounded by a front cover and a rear cover, and also comprising:

[0008] an anti-backflow diaphragm, which is made of a flexible elastic material and is disposed between the front cover and the rear cover and is sealed to the front cover and the rear cover; the anti-backflow diaphragm and the rear cover form a sealed cavity;

[0009] A three-way valve, disposed on the rear cover and connected to the sealing cavity;

[0010] a negative pressure pump, connected to the three-way valve, to intermittently evacuate the sealed cavity;

[0011] an electromagnetic valve, connected to the three-way valve, to intermittently release air from the sealing chamber;

[0012] The negative pressure pump evacuates air and the solenoid valve deflates air alternately.

[0013] A thin deformation portion is provided in the middle of the anti-backflow diaphragm; a guide cylinder is provided at a position of the front cover corresponding to the deformation portion, and the deformation portion is accommodated in the guide cylinder.

[0014] A corrugated portion is provided at the periphery of the deformation portion, and a sealing portion extends from the periphery of the corrugated portion; a front cover corrugated portion extends laterally from one end of the guide cylinder, and a front cover connecting portion is provided at the periphery of the front cover corrugated portion; the rear cover comprises a cover body and a rear cover connecting portion provided at the periphery of the cover body, and an inner ring provided on the cover body; the front cover and the rear cover are relatively buckled, so that the front cover connecting portion is connected to the rear cover connecting portion, and an accommodating cavity is formed between the front cover connecting portion and the inner ring; the corrugated portion is sealingly fitted to the front cover corrugated portion, and the sealing portion is inserted into the accommodating cavity and interference fits therewith, thereby sealing the front cover and the rear cover, and forming the sealing cavity between the cover body of the rear cover, the inner ring and the anti-backflow diaphragm.

[0015] The rear cover is provided with a through hole, and the three-way valve is connected to the sealing cavity through the through hole; a sealing ring seals the through hole, thereby sealing the sealing cavity.

[0016] The anti-backflow diaphragm is made of silica gel and has a thickness of 0.2-3 cm. The thickness of the deformation portion is 0.2-0.5 cm.

[0017] It also includes a mounting base, which matches the shape of the front cover; a groove is provided on the outer wall of the front cover, and a socket is provided on the mounting base at a position corresponding to the groove, an elastic member is installed in the socket, and an elastic member is installed in the socket, and the elastic member is inserted into the groove to connect the two detachably.

[0018] It also includes a battery and a PCB circuit board, wherein the PCB circuit board is electrically connected to the negative pressure pump and the solenoid valve; the battery is electrically connected to the PCB circuit board to supply power to the negative pressure pump and the solenoid valve.

[0019] The breast pump comprises a casing, a breast cup and a milk bottle; the breast cup is arranged on the front side of the casing; the negative pressure chamber assembly is arranged in the casing, the front cover is connected to the breast cup, the anti-backflow diaphragm, the front cover and the breast cup together form a lactation chamber; the negative pressure pump intermittently evacuates the negative pressure chamber, and the solenoid valve intermittently releases the negative pressure chamber, so as to control the air volume of the negative pressure chamber, and further control the formation of negative pressure or positive pressure in the lactation chamber; the milk bottle is arranged below the casing and connected to the lactation chamber.

[0020] The beneficial effects of the utility model are as follows: the special negative pressure chamber component for the breast pump of the utility model has a reasonable structural design, light weight and small volume, and is placed in the breast pump, which reduces the weight and volume of the breast pump as a whole, making it light weight and small volume, easy to wear in a hidden manner, and comfortable and convenient to wear.

[0021] The special negative pressure chamber component for the breast pump described in the utility model evacuates the sealed chamber through the negative pressure pump and releases the air through the solenoid valve, thereby controlling the amount of air in the sealed chamber, thereby simulating the sucking effect of a baby and promoting milk secretion. The suction force is gentle and efficient, which can effectively promote milk secretion and provide a good customer experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional structure diagram of the negative pressure chamber assembly for breast pump of the utility model is shown in the figure. The pipeline connecting the three-way valve to the negative pressure pump and the electromagnetic valve is shown in the figure.

[0023] Figure 2Another structural schematic diagram of the negative pressure chamber assembly for breast pump of the utility model is shown in FIG. For the sake of clarity, the figure does not show the pipeline connecting the three-way valve to the negative pressure pump and the solenoid valve, and the PCB board.

[0024] Figure 3 for Figure 2 Schematic diagram of the decomposition structure.

[0025] Figure 4 for Figure 2 Another decomposition structure diagram of .

[0026] Figure 5 for Figure 2 Front view of.

[0027] Figure 6 For along Figure 5 Section view along line AA.

[0028] Figure 7 It is a structural schematic diagram of the breast pump.

[0029] Figure 8 for Figure 7 Front view of .

[0030] Fig. 9 For along Figure 8 Cross-sectional view along line BB. DETAILED DESCRIPTION

[0031] In order to make the utility model's utility model purpose, technical scheme and technical effect clearer, the utility model is further described below in conjunction with specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4A negative pressure chamber assembly for a breast pump includes a chamber surrounded by a front cover 10 and a rear cover 20, and also includes: an anti-backflow diaphragm 30, a three-way valve 40, a negative pressure pump 50 and a solenoid valve 60. The anti-backflow diaphragm 30 is made of a flexible elastic material, and is disposed between the front cover 10 and the rear cover 20, and is sealed and connected to the two; the anti-backflow diaphragm 30 and the rear cover 20 form a sealed chamber 11; the three-way valve 40 is disposed on the rear cover 20, and is connected to the sealed chamber 1; the negative pressure pump 50 is connected to the three-way valve 40, and intermittently evacuates the sealed chamber 1; the solenoid valve 60 is connected to the three-way valve 40, and intermittently deflates the sealed chamber 1; the negative pressure pump 50 evacuates air and the solenoid valve 60 deflates air alternately, thereby controlling the amount of air in the sealed chamber 1. The special negative pressure chamber assembly for the breast pump described in the utility model evacuates the sealed chamber 1 through the negative pressure pump 50, and the solenoid valve 60 deflates the sealed chamber 1, thereby controlling the amount of air in the sealed chamber 1, so that the breast pump can simulate the sucking effect of a baby and promote milk secretion. The suction force is gentle and efficient, which can effectively promote milk secretion and provide a good customer experience.

[0033] Reference Figure 3 , Figure 4 and Figure 6 , a thin deformation part 31 is provided in the middle of the anti-backflow diaphragm 30; the front cover 10 is provided with a guide cylinder 11 at a position corresponding to the deformation part 31, and the deformation part 31 is accommodated in the guide cylinder 11. When the negative pressure pump 50 evacuates the sealed cavity 1, the amount of air in the sealed cavity 1 decreases, and its pressure becomes smaller and is less than the external atmospheric pressure, so that the deformation part 31 is deformed toward the direction of the rear cover 20 under the action of the external atmospheric pressure. When the solenoid valve 60 deflates, gas enters the sealed cavity 1, the amount of air in the sealed cavity 1 increases, and its pressure increases. When the pressure is greater than the external atmospheric pressure, the deformation part 31 deforms toward the direction of the guide cylinder 11.

[0034] A corrugated portion 32 is provided around the periphery of the deformable portion 31, and a sealing portion 33 extends from the periphery of the corrugated portion 32; a front cover corrugated portion 12 is extended laterally from one end of the guide cylinder 11, and a front cover connecting portion 13 is provided around the periphery of the front cover corrugated portion 12; the rear cover 20 includes a cover body 21 and a rear cover connecting portion 22 provided on the periphery of the cover body 21, and an inner ring 23 provided on the cover body 21; the front cover 10 and the rear cover 20 are relatively buckled, so that the front cover connecting portion 13 is connected to the rear cover connecting portion 22, and an accommodating cavity 14 is formed between the front cover connecting portion 13 and the inner ring 23; the corrugated portion 32 is sealingly fitted to the front cover corrugated portion 12, and the sealing portion 33 is inserted into the accommodating cavity 14 and is interference fit therewith, thereby sealing the front cover 10 and the rear cover 20, and forming the sealing cavity 1 between the cover body 21 of the rear cover 20, the inner ring 23 and the anti-backflow diaphragm 30. The negative pressure chamber component dedicated to the breast pump has a reasonable structural design, a small size, and a light weight. When placed in the breast pump, the weight and volume of the breast pump are reduced as a whole, making it light in weight and small in size, easy to wear in a hidden manner, and comfortable and convenient to wear.

[0035] The rear cover 20 is provided with a through hole 24, and the three-way valve 40 is connected to the sealed cavity 1 through the through hole 24; a sealing ring 25 seals the through hole 24, thereby sealing the sealed cavity 1. Figure 1 The three-way valve 40 is connected to the negative pressure pump 50 through a pipeline 41 and is connected to the solenoid valve 60 through another pipeline 42 .

[0036] The anti-backflow diaphragm 30 is preferably made of silicone, which can be used to seal the front cover 10 and the rear cover 20 and can be deformed. The thickness of the anti-backflow diaphragm 30 is preferably 0.2-3 cm, and the thickness of the deformation part 31 is 0.2-0.5 cm. If the anti-backflow diaphragm 30 is too thick, it is not conducive to deformation, and if it is too thin, it is easy to be damaged.

[0037] Reference Figure 3 , Figure 4 and Figure 6 Preferably, the negative pressure chamber assembly further includes a mounting seat 70, and the mounting seat 70 matches the shape of the front cover 10; a groove 14 is provided on the outer wall of the front cover 10, and a plug hole 71 is provided on the mounting seat 70 at a position corresponding to the groove 14, and an elastic member 72 is installed in the plug hole 71, and the elastic member 72 is inserted into the groove 14, so that the two are detachably connected, thereby facilitating the disassembly and installation of the negative pressure chamber assembly. It should be understood that the mounting seat 70 and the front cover 10 can also be installed in other ways, such as snap connection, riveting, welding, etc., and are not limited to the groove 14 and elastic member 72 described in this embodiment.

[0038] Reference Figure 1 , Fig. 9 The negative pressure chamber assembly also includes a battery 73 and a PCB circuit board 74, the battery 73 is electrically connected to the PCB circuit board 74, and the PCB circuit board 74 is electrically connected to the negative pressure pump 50 and the solenoid valve 60; the battery 73 supplies power to the negative pressure pump 50 and the solenoid valve 60.

[0039] Reference Figure 7 , Figure 8 and Fig. 9 The breast pump has a housing 80, a breast cup 81 and a milk bottle 82; the breast cup 81 is arranged on the front side of the housing 80; the negative pressure chamber assembly is arranged in the housing 80, the front cover 10 is connected to the breast cup 81, the anti-backflow diaphragm 30, the front cover 10 and the breast cup 81 together form a lactation cavity; the negative pressure pump 50 intermittently evacuates the sealed cavity 1, and the solenoid valve 60 intermittently deflates the sealed cavity 1, thereby controlling the amount of air in the sealed cavity 1, and then controlling the formation of negative pressure or positive pressure in the lactation cavity, that is, forming a simulated baby sucking effect. Since the negative pressure pump 50 and the solenoid valve 60 do not directly act on the breast, but control the sealed cavity 1 to form a simulated baby sucking effect in the lactation cavity, the suction force is gentle and efficient, which can effectively promote milk secretion and provide a good customer experience.

[0040] The milk bottle 82 is disposed below the housing 80 and is connected to the lactation cavity for collecting milk.

[0041] The above content is a further detailed description of the utility model in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, its architecture can be flexible and can derive a series of products. Just making a few simple deductions or substitutions should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A negative pressure chamber assembly for a breast pump, comprising a chamber surrounded by a front cover and a rear cover, characterized in that: Also includes: an anti-backflow diaphragm, which is made of a flexible elastic material and is disposed between the front cover and the rear cover and is sealed to the front cover and the rear cover; the anti-backflow diaphragm and the rear cover form a sealed cavity; A three-way valve, disposed on the rear cover and connected to the sealing cavity; a negative pressure pump, connected to the three-way valve, to intermittently evacuate the sealed cavity; an electromagnetic valve, connected to the three-way valve, to intermittently release air from the sealing chamber; The vacuum pump pumps air and the solenoid valve releases air alternately; A thin deformation portion is provided in the middle of the anti-backflow diaphragm; a guide cylinder is provided at a position of the front cover corresponding to the deformation portion, and the deformation portion is accommodated in the guide cylinder.

2. The negative pressure chamber assembly for a breast pump according to claim 1, characterized in that: A corrugated portion is provided at the periphery of the deformation portion, and a sealing portion extends from the periphery of the corrugated portion; a front cover corrugated portion extends laterally from one end of the guide cylinder, and a front cover connecting portion is provided at the periphery of the front cover corrugated portion; the rear cover comprises a cover body and a rear cover connecting portion provided at the periphery of the cover body, and an inner ring provided on the cover body; the front cover and the rear cover are relatively buckled, so that the front cover connecting portion is connected to the rear cover connecting portion, and an accommodating cavity is formed between the front cover connecting portion and the inner ring; the corrugated portion is sealingly fitted to the front cover corrugated portion, and the sealing portion is inserted into the accommodating cavity and interference fits therewith, thereby sealing the front cover and the rear cover, and forming the sealing cavity between the cover body of the rear cover, the inner ring and the anti-backflow diaphragm.

3. The negative pressure chamber assembly for breast pump according to claim 2, characterized in that: The rear cover is provided with a through hole, and the three-way valve is connected to the sealing cavity through the through hole; a sealing ring seals the through hole, thereby sealing the sealing cavity.

4. The negative pressure chamber assembly for a breast pump according to any one of claims 1 to 3, characterized in that: The anti-backflow diaphragm is made of silica gel and has a thickness of 0.2-3 cm. The thickness of the deformation portion is 0.2-0.5 cm.

5. The negative pressure chamber assembly for a breast pump according to any one of claims 1 to 3, characterized in that: It also includes a mounting base, which matches the shape of the front cover; a groove is provided on the outer wall of the front cover, and a socket is provided on the mounting base at a position corresponding to the groove, an elastic member is installed in the socket, and an elastic member is installed in the socket, and the elastic member is inserted into the groove to connect the two detachably.

6. The negative pressure chamber assembly for a breast pump according to any one of claims 1 to 3, characterized in that: It also includes a battery and a PCB circuit board, wherein the PCB circuit board is electrically connected to the negative pressure pump and the solenoid valve; the battery is electrically connected to the PCB circuit board to supply power to the negative pressure pump and the solenoid valve.

7. The negative pressure chamber assembly for a breast pump according to any one of claims 1 to 3, characterized in that: The breast pump comprises a housing, a breast cup and a milk bottle; the breast cup is arranged on the front side of the housing; the negative pressure chamber assembly is arranged in the housing, the front cover is connected to the breast cup, the anti-backflow diaphragm, the front cover and the breast cup together form a lactation cavity; The negative pressure pump intermittently evacuates the negative pressure chamber, and the solenoid valve intermittently releases the negative pressure chamber, thereby controlling the amount of air in the negative pressure chamber, and further controlling the formation of negative pressure or positive pressure in the lactation chamber; the milk bottle is arranged below the casing and is connected to the lactation chamber.

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