KR101430672B1 - Electric milking machine - Google Patents

Abstract

The present invention relates to an electric breast pump having a breast massage function for breast feeding as well as a milk backflow prevention function for preventing breast milk from flowing back toward the breast pump during milking of breast milk.
That is, the present invention is conceived to prevent the phenomenon that breast milk is refluxed, and includes a suction and pressurizing pump rotated by a motor for pushing breast milk for sucking breast milk and preventing backflow, A solenoid valve for independently controlling the air flow in the pressurization path during the suction operation and the pressurization operation during the suction operation, and a control means for controlling the opening and closing of the air flow in the pressurization path independently, thereby completely blocking the phenomenon that the milk flows back toward the breast during milking of the breast milk, The present invention is to provide an electric breast pump having a massage function of the breast part by an air tube which repeatedly shrinks and expands, as well as a backflow prevention function that can prevent contamination of the breast part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric milking machine having a milk-

The present invention relates to an electric breast pump having a function of preventing breast milk backflow, and more particularly, to an electric breast pump for preventing breast milk flow back to the breast pump during breast milk milking, The present invention relates to an electric breast pump,

As is well known, a breast pump is used to artificially squeeze breast milk from a breast (hereinafter referred to as a breast-feeding section) or to store squeezed breast milk.

Such a breast pump is used by hand-held pump that squeezes breast milk by compression-pumping by holding a syringe-type passive vacuum pump by hand, and electric-type pump with vacuum pumping means is widely used. Recently, as interest in breast- An electric breast pump is widely used.

A conventional electric type breast pump includes a vacuum pump that generates vacuum pressure from a vacuum pump member that rotates in accordance with driving of a motor, an adsorption tube that is connected to a hose extending from the vacuum pump and covers the breast portion, And a bottle that stores breast milk.

However, during operation of the electric breast pump, the air is continuously pumped to the vacuum pump. In addition, there is a problem in that breast milk is continuously sucked from the lactating part to cause pain, and milking amount is remarkably reduced.

In order to solve such a problem, applicant of the present application can relieve the pain of the feeding part due to breast milking by periodically milking the milk while vacuum pumping the air filled in the inner space of the milking machine at a repetition period of a predetermined cycle or releasing the vacuum pumping (Registration number: No. 390618).

In addition, applicants of the present application have pointed out that it is impossible to control the pressure according to the intensity of the pain applied to the nursing unit during milking and milking during breastfeeding, that the breastfeeding continues due to continuous milking only at a constant pressure, It is possible to easily change the suction pressure at the time of milking so as to solve the problems such as the loss of the airtightness and the decrease of the efficiency of the lubrication and the shortening of the lifetime of the drive motor, (Patent Registration No. 566830), which is capable of controlling the milking pressure and preventing the breakdown and damage of the apparatus, has already been filed for a pumping section structure of an electric pump-type pump.

However, since the above conventional electric breast pump has a structure in which only the single hose extending from the vacuum pump is connected to the suction pipe which is put on the breast part, some breast milk squeezed from the breast part does not enter the bottle connected to the bottom part of the suction pipe , And a phenomenon of backward flow to the vacuum pump through the single hose occurs.

When a part of the breast milk squeezed by the suction tube by the vacuum suction force of the vacuum pump flows back to the vacuum pump through the single hose, the contact part between the vacuum pump and the single hose, as well as various accessories in the vacuum pump, have.

Particularly, there is a problem that contaminated breast milk can be introduced into the bottle again through the single hose and the suction pipe when the vacuum suction force of the vacuum pump is released again.

The present invention is conceived to prevent the backflow of breast milk as described above. The present invention includes a suction and pressurizing pump rotated by a motor for pushing breast milk for sucking breast milk and for preventing backflow A solenoid valve for independently controlling opening and closing of the air flow in the pressurizing path during the suction operation and a suction path during the suction operation, and a control means thereof, so as to completely block the phenomenon that the milk flows back toward the breast pump during milking of the breast milk And an object of the present invention is to provide an electric breast pump having a backflow prevention function that can prevent contamination of breast milk at a source.

Another object of the present invention is to provide a massage tube tube having an air tube detachably mounted in a suction tube wound on a breast-feeding portion to adjust the number of revolutions of the motor and adjust the number of steps for suction and pressure repetition, The present invention also provides an electric breast pump having a massage part functioning to allow the air tube of the tube tube to perform massage with respect to the breast part while repeatedly expanding and contracting.

According to an aspect of the present invention, there is provided a portable terminal comprising: a case body divided into an upper case and a lower case, A sucking and pressurizing pump fixedly mounted in the case body to simultaneously perform a suction operation for squeezing the milk and a pressurizing operation for pressing the squeezed milk to prevent the backflow; A motor fixedly mounted in the case body to eccentrically connect with the rotary vane that presses the membrane in the suction and pressurizing pump to provide an eccentric rotational force to the rotary vane; A first solenoid valve mounted on an intermediate portion of a suction hose connected to an air suction port of the suction and pressurizing pump to allow or block breast-milk suction; A second solenoid valve mounted on an intermediate portion of the pressure hose connected to the air outlet of the suction and pressurizing pump to allow or block the pressurization of the milk; A controller for controlling on / off operations of the first and second solenoid valves and a motor speed; A main hose extending from the suction hose and the pressure hose to the outside of the case body; A suction tube connected to the distal end of the main hose and covering the breast part; The present invention provides an electric breast pump having a backflow prevention function.

According to a preferred embodiment of the present invention, the suction and pressurizing pump comprises: a suction-side case having an eccentric shaft connected to a shaft of the motor and having an air inlet for fastening the suction hose to the outer side; A hollow pressurized case having a pressurizing hole formed at an equal interval along a circumferential direction on its inner side and an outer air outlet formed with an air outlet for engaging the pressurizing hose; A suction space is formed at a side facing the suction side case and a plurality of membrane mounting holes formed at regular intervals along the circumferential direction on the opposite side of the pressure side case, An intermediate case which is fastened between the upper case and the lower case; A membrane mounted on each of the membrane mounts of the intermediate case, the membrane being convex toward the suction side case and recessed toward the pressure side case; A main rotating shaft disposed between the suction side case and the intermediate case and slidably connected to the eccentric shaft eccentrically; A plurality of rotary vanes extending integrally in the radial direction from the outer diameter surface of the main rotary shaft, extending in the same number as the membrane, the outer ends being integrally fastened to the convex surface of the membrane; .

Preferably, the first solenoid valve is controlled to be opened during suction operation of the suction and pressurizing pump, and to be closed during the pressurization operation.

In addition, the second solenoid valve is controlled to be opened when the suction and pressurizing pump is operated under pressure, and is closed so as to be controlled to be closed during the suction operation.

Particularly, a massage tube tube is mounted in the suction tube so as to be able to communicate with the main hose. The inner circumference portion of the massage tube tube is connected to the main hose so as to be able to communicate with the suction tube, And an air tube for massaging the breast part while expanding at the time is formed.

In addition, the upper case of the case body is equipped with a liquid crystal display for displaying a current operation state, including a motor step number control switch and an on / off switch.

Through the above-mentioned means for solving the problems, the present invention provides the following effects.

According to the present invention, by repeating the operation of pushing breast milk for suction operation for squeezing breast milk and preventing the reverse flow, and independently controlling the air flow in the pressurization path during the suction operation and the pressurization operation, The breast milk can be squeezed easily in the breast feeding part and the back flow of the breast milk can be prevented during the pressurization operation so that the breast milk can be completely prevented from flowing back into the breast pump and thus the breast milk can be prevented from being contaminated.

In addition, the massage tube tube having the air tube is detachably mounted in the suction tube wound on the breast-feeding portion, and the air tube of the massage tube tube is repeatedly expanded and contracted by the breast-milk suction operation and the back- The massage of the lactating part by the air tube can be performed, and the pain of the lactating part due to massage can be solved.

1 is a perspective view showing an appearance of a case body of an electric breast pump having a backflow prevention function according to the present invention;
FIG. 2 is a perspective view showing a connection relationship of an internal configuration including a suction pump and a pressurizing pump of a motor-driven breast pump having a backflow prevention function according to the present invention,
FIG. 3 and FIG. 4 are exploded perspective views illustrating the configuration of a suction pump and a pressurizing pump of the electric breast pump according to the present invention;
FIG. 5 and FIG. 6 are perspective views illustrating an operation of pushing a membrane while the rotary blade in the suction and pressurization pump of the electric type breast pump according to the present invention rotates eccentrically,
FIG. 7 and FIG. 8 are diagrams for explaining the breast milk suction and pressurization operations performed together with driving of the suction and pressurization pump of the electric breast pump according to the present invention,
9 is a sectional view showing a massage function of the electric breast pump according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2, the electric breast pump according to the present invention includes a case body 100 divided into an upper case 102 and a lower case 104 which are detachably coupled to each other, And a suction and pressurizing pump 200 for simultaneously performing a suction operation for squeezing breast milk and a breast milk squeezed for prevention of back flow.

The upper case 102 of the case body 100 is provided with a plurality of switches 106 for controlling the number of steps for controlling the number of revolutions of the motor and on / off and a liquid crystal display 108 for displaying the current operating state. Respectively.

The present invention relates to a method and apparatus for repeating breast milk pressing operation for squeezing breast milk and for preventing backflow while independently opening and closing the air flow in the suction path and the pressurization path during the suction operation, There is also a point to be able to completely prevent the backflow of breast milk to the breast.

To this end, a suction and pressurizing pump 200, which repeatedly performs a suction operation for squeezing breast milk inside the case body 100 and an operation for pressing the squeezed milk without backflow, is fixedly mounted together with the motor 202 do.

Hereinafter, the construction of the suction and pressurizing pump employed in the present invention will be described with reference to FIGS.

First, a motor 202 is fixedly mounted on a lower case 104, and a suction and pressurizing pump 200 is fixedly installed at a position adjacent to an axis of the motor 202.

As a configuration of the suction and pressurization pump 200, a suction-side case 210 constituting a vacuum suction space for breast-milk suction is arranged at a position connected to the axis of the motor 202. The suction- An eccentric shaft 212 eccentrically connected with the axis of the motor 202 is incorporated.

More specifically, the suction-side case 210 is coupled with the intermediate case 220 to form a closed space. An eccentric shaft 212 connected to the shaft of the motor 202 is inserted into the closed space, And an air inlet 216 communicating with the closed space is formed on the outer surface (surface facing the motor) of the suction-side case 210.

At this time, a suction hose 214 having a predetermined length is fastened to the air suction port 216 of the suction case 210.

As another constitution of the suction and pressurization pump 200 of the present invention, the pressurized case 230 is fastened with the suction case 210 and the intermediate case 220 interposed therebetween.

The pressing side case 230 is provided with a hollow hollow portion for internal air pressing function for breast pressurization. The pressing side case 230 is provided with a pressing portion Holes 232 are formed at equal intervals, and an air outlet 236 communicating with the hollow portion is formed on the outer surface.

At this time, a pressurizing hose 234 having a predetermined length is fastened to the air outlet 236 of the pressurizing case 230.

Here, the intermediate case 220 is fastened between the suction side case 210 and the press side case 230 as described above.

A vacuum suction space 222 is formed on one side of the intermediate case 220, that is, on one side facing the suction side case 210 together with the suction side case 210, and the middle case 220 A plurality of membrane mounts 224 are formed at regular intervals along the circumferential direction on the other side of the other side opposite to the pressurizing case 230.

In particular, a membrane 240 made of a rubber material is inserted into each of the membrane mounts 224 of the intermediate case 220. The membrane 240 is convex toward the suction side casing 210, The case 230 has a concave structure and is inserted into the membrane mounting holes 224.

More specifically, the membrane 240 is composed of a thin plate 240a and a tube 240b formed integrally at equal intervals along the circumferential direction of the plate 240a, And the tube tube 240b is convex toward the suction side case 210 and concave toward the press side case 230. [

Therefore, when the tube 240b of the membrane 240 inserted into the membrane mount 224 and arranged in a convex manner toward the suction-side casing 210 is pressed, it is pressed toward the pressurizing case 230, The elastic returning force is restored to its original position by the elastic restoring force and is arranged in a convex shape to the suction-side case 210 again.

At this time, a rotary blade for pressing the membrane 240 is mounted on an eccentric shaft 212 rotatably connected to the shaft of the motor 202 and rotatably disposed in the suction-side case 210.

The rotary blades are formed in a star shape and include a plurality of rotary blades 244 integrally formed along the circumference of the main rotation axis 242 at the center thereof and the outer diameter of the main rotation axis 242, And the eccentric shaft 212 and the main rotary shaft 242 are slidably connected in an eccentric manner.

That is, the rotation pin of the main rotation shaft 242 is slidably inserted into the eccentric hole of the eccentric shaft 212 through the grease.

Particularly, the plurality of rotating blades 244 integrally extended in the radial direction from the outer diameter surface of the main rotating shaft 242 are formed in the same number as the number of the membranes 240, and the outer ends of the rotating blades 244, The projecting pin 245 integrally protruding from the convex surface of the membrane 240 as an example of the assembling structure is inserted into the coupling hole 244 formed at the outer end of the rotary vane 244, (246).

When the suction-side case 210, the intermediate case 220, and the pressure-side case 230 are closely tightened to each other so as to be airtightly sealed, the space between the suction- And the space between the intermediate case 220 and the pressurizing case 230 serves as an air pressurizing space for pushing out the air inside the pressurizing case 230 to pressurize the milk.

According to the present invention, a first solenoid valve 110 is mounted at an intermediate portion of the suction hose 214 connected to the air suction port 216 of the suction and pressurization pump 200, and the first solenoid valve 110 are controlled to be opened by the controller 130 during the breast milk suction operation of the suction and pressurization pump 200 and conversely controlled to be closed by the controller 130 during the breast milk pressurization operation.

A second solenoid valve 120 is mounted at an intermediate portion of the pressure hose 234 connected to the air outlet 236 of the suction and pressurizing pump 200, Is controlled to be opened by the controller 130 during the breast-milking operation of the suction and pressurization pump 200, and is closed by the controller 130 during the breast-milk suction operation.

At this time, a controller 130 for on / off operation control is connected to the first and second solenoid valves 110 and 120, and the same controller 130 is also connected to the motor 202 for on / .

The distal end of the suction hose 214 extending from the first solenoid valve 110 and the distal end of the pressure hose 234 extending from the second solenoid valve 120 are connected to one main hose 140 And the main hose 140 is extended to the outside of the case body 100. [

In addition, the distal end of the main hose 140 extending to the outside of the case body 100 is connected to the suction pipe 150 that covers the substantially breast-feeding portion and functions as a milk-milking function.

The front end portion of the suction tube 150 is covered with the front end portion of the main hose 140 and the rear end portion of the main hose 140 is connected to the rear end portion.

At this time, a main hose communicating path 152 communicating with the main hose 140 is formed in the rear portion of the suction pipe 150, and below the main hose communicating path 152 is extended toward the storing bottle A breast milk flow path 154 is formed.

Hereinafter, a description will be made with reference to FIGS. 5 to 8, which illustrate the operation of the electric pumping operation of the electric pumping system according to the present invention and the operation of blocking the backflow of milk.

First, the user turns on the motor on / off switch among the switches 106 mounted on the upper case 102 while the suction tube 150 is worn on the feeding part.

At the same time, when the motor 202 rotates, the eccentric shaft 212 in the suction-side case 210 connected to the rotation shaft of the motor 202 rotates, and the rotary blade connected eccentrically to the eccentric shaft 212 Eccentric rotation is performed.

More specifically, the main rotation axis 242 eccentrically connected to the eccentric shaft 212 eccentrically rotates while the rotation pin of the main rotation axis 242 inserted in the eccentric hole of the eccentric shaft 212 slips The main rotating shaft 242 is moved in a circular arc with an eccentric distance with respect to the eccentric shaft 212 since the rotating blades 244 integrated with the main rotating shaft 242 are fixed to the membrane 240 .

At the same time, when the main rotary shaft 242 moves in a circular arc, the rotary blades 244 integrally formed with the main rotary shaft 242 are tilted one by one.

This tilting of the rotary blades 244 one by one means that one of the rotary blades 244 is tilted toward the corresponding membrane 240 and the next adjacent rotary blades 244 are tilted toward the corresponding membrane 240), such that the rotating blades (244) are tilted toward the membrane repeatedly.

Accordingly, when any one of the rotary vanes 244 is repeatedly tilted, each rotary vane 244 repeatedly presses the corresponding convex membrane 240, so that the membrane 240 is pressed against the pressure- 230, and of course, when the pressing force by the rotary vane 244 is released, the membrane 240 is returned to its original convex shape by its own elastic restoring force.

When the membranes 240 are repeatedly pushed toward the pressurized case 230, the internal volume of the space between the suction case 210 and the intermediate case 220 is increased, and the vacuum suction space .

The suction hose 214 connected to the air suction port 216 of the suction case 210 sucks in air and the suction hose 214 is connected to the main hose 214 The breast milk is easily squeezed from the breast-feeding unit and stored in the bottle through the breast-milk flow path 154 of the suction pipe 150. [0051] As shown in FIG.

At this time, the first solenoid valve 110 mounted at the middle portion of the suction hose 214 is controlled to be opened by the controller 130 during the breast-milk suction operation as described above, and is controlled to be closed during the breast- do.

The pushing operation for preventing breast milk backflow simultaneously with the above-described breast-milk suction operation is performed as follows.

The tube 240b of the membrane 240 protrudes toward the pressurized case 230 by repeatedly pressing the convex membrane 240 while one of the rotary vanes 244 is repeatedly inclined, 240 are protruded, the volume of the space between the intermediate case 220 and the pressurizing case 230 is reduced and an air pressurizing space for pushing the air inside the pressurizing case 230 to the outside is formed.

Therefore, when the tube 240b of the membrane 240 protrudes toward the pressurizing case 230, air in the concave space of the membrane 240 is discharged through the pressurizing hole 232 of the pressurizing case 230 The air discharged to the air discharge port 236 is discharged to the air discharge port 236 through the pressure hose 234 and the main hose 140 connected to the air discharge port 236. [ And acts as a pressing force against the suction pipe 150.

The discharge air that acts as a pressing force toward the suction pipe 150 can be easily prevented from flowing back to the pump through the main hose 140. [

At this time, the second solenoid valve 120 mounted at the middle portion of the pressure hose 234 is controlled to be opened by the controller 130 during the breast-pressurization operation as described above, And is controlled by closing.

By controlling the opening and closing operation cycle of the first solenoid valve 110 and the opening and closing operation cycle of the second solenoid valve 120 alternately, although the breast-milk suction operation and the breast- And the breast milk pressurization operation can be repeatedly performed, so that not only the breast milk can be easily squeezed from the breast-feeding portion, but also the phenomenon that the breast-milk backflow can be easily prevented.

Of course, the opening and closing periods of the first and second solenoid valves 110 and 120 are alternated with each other. By adjusting the opening and closing time of the first and second solenoid valves 110 and 120, the breast milk suction operation period can be longer and the breast milk pressure operation can be controlled shorter.

Hereinafter, a configuration and an operation flow for massage of the lactation part of the electric breast pump according to the present invention will be described with reference to FIG.

According to the present invention, the massage tube tube 160 can be installed in the suction tube 150 so as to communicate with the main hose 140 side to provide a massage function for the breast-feeding part by breast-milk suction and pressure operation .

For this purpose, the massage tube tube 160 is formed into a tubular shape so as to be in close contact with the entrance of the suction tube 150, that is, the inside of the tubular tube, and an air tube 162 .

A means such as a hollow pin is attached to the rear portion of the air tube 162 so as to be communicatively inserted into the main hose 140 so that the breast milk suction force and the pressing force acting on the main hose 140 are transmitted to the air tube 162).

Accordingly, the air in the air tube 162 is sucked and contracted during the breast-milk suction operation of the suction and pressurization pump 200 as described above. On the contrary, when the breast-pressurizing operation is performed, air enters into the air tube 162, The massage can be performed on the breast-feeding part based on the expansion and contraction action of the breast 162.

On the other hand, when the user selects and operates the switch for controlling the number of steps of increasing or decreasing the number of revolutions of the motor among the switches 106 mounted on the upper case 102, the number of revolutions of the motor is increased or decreased, The breast tube suction force and the breast tube pressure force by the air tube 162 are also increased or decreased, and the contraction and expansion force of the air tube 162 is controlled to be increased or decreased.

100: case body 102: upper case
104: lower case 106: switch
108: liquid crystal display 110: first solenoid valve
120: second solenoid valve 130: controller
140: main hose 150: adsorption pipe
152: main hose communication path 154: breast milk flow path
160: Massage tube 162: Air tube
200: suction and pressurizing pump 202: motor
210: suction side case 212: eccentric shaft
214: suction hose 216: air inlet
220: Middle case 222: Suction space
224: Membrane mount 230: Pressure side case
232: pressure hole 234: pressure hose
236: Air outlet 240: Membrane
242: main rotating shaft 244: rotating blade
245: projecting pin 246: fastening hole

Claims (6)

A case body 100 divided into an upper case 102 and a lower case 104 which are fastened to each other;
A suction and pressurizing pump 200 fixedly mounted within the case body 100 to simultaneously perform a suction operation for squeezing the milk and a pressurization operation for pressing the squeezed milk to prevent the backflow;
A motor (not shown) fixedly mounted in the case body 100 to eccentrically connect with the rotary vane 244 that presses the membrane 240 of the suction and pressurization pump 200 to provide an eccentric rotational force to the rotary vane 244 202;
A first solenoid valve 110 mounted at an intermediate portion of the suction hose 214 connected to the air suction port 216 of the suction and pressurization pump 200 to allow or block the breast milk suction;
A second solenoid valve 120 mounted on an intermediate portion of the pressure hose 234 connected to the air outlet 236 of the suction and pressurization pump 200 to allow or block breast pressurization;
A controller 130 for controlling on / off operations of the first and second solenoid valves 110 and 120 and a speed of the motor 202;
A main hose 140 extending from the suction hose 214 and the pressure hose 234 to the outside of the case body 100;
A suction pipe (150) connected to the distal end of the main hose (140) and covering the feeding part;
Wherein the breast pump has a function of preventing backflow of milk and a massage function.
The method according to claim 1,
The suction and pressurization pump (200) comprises:
A suction side case 210 having an eccentric shaft 212 connected to a shaft of the motor 202 and an air intake port 216 through which the suction hose 214 is coupled to the outer side,
A hollow pressurized case 230 having an inner side surface formed with pressurizing holes 232 at regular intervals along the circumferential direction and an outer side surface formed with an air outlet 236 to which the pressurizing hose 234 is fastened;
A suction space 222 is formed at a side facing the suction side casing 210 and a plurality of membrane mounting holes 224 formed at regular intervals along the circumferential direction are formed at the opposite side of the pressure side casing 230 An intermediate case 220 coupled between the suction side case 210 and the pressure side case 230;
A membrane 240 which is convex toward the suction side casing 210 and is recessed toward the pressure side casing 230 and inserted into the respective membrane mounting openings 224 of the intermediate casing 220;
A main rotating shaft 242 which is disposed between the suction side casing 210 and the intermediate case 220 and is slidably connected to the eccentric shaft 212 in an eccentric manner and a main rotating shaft 242 which is integrally formed with the main rotating shaft 242 in the radial direction A plurality of rotating blades 244 extending in the same number as the membrane and extending outwardly and integrally fastened to the convex surface of the membrane 240;
Wherein the breast pump has a backflow preventing function and a massage function.
The method according to claim 1,
Wherein the first solenoid valve (110) is controlled to open during breast-milk suction operation of the suction and pressurization pump (200), and is closed-controlled during breast-milk pressurization operation.
The method according to claim 1,
Wherein the second solenoid valve (120) is controlled to be opened when the suction and pressurization pump (200) is operated during breastfeeding operation, and is closed and closed during breastfeeding operation.
The method according to claim 1,
A massage tube 160 is attached to the suction tube 150 so as to communicate with the main hose 140. An inner peripheral portion of the massage tube tube 160 can communicate with the main hose 140 side And an air tube (162) that is connected to the suction and pressurizing pump (200) to shrink the suction and pressurizing pump (200) and massage the breast - feeding part while expanding during the pressing operation is formed.
The method according to claim 1,
Characterized in that an upper case (102) of the case body (100) is provided with a liquid crystal display (108) for displaying a current operating state, including a motor number adjusting switch and an on / off switch (106) Electric breast pump with massage function.

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