KR100566830B1 - Pumping system of electric milking machine - Google Patents

Abstract

The present invention relates to a pumping means of an electric breast pump for milking breast milk from a mother's breast, and in particular, the pumping means is provided with a plurality of adjusting holes spaced apart in the transverse direction on the upper side of the cylinder, and integral with the upper peripheral edge of the adjusting hole. Protruding the guide groove of the guide groove, the adjustment groove having a predetermined width is inserted into the guide groove, the control hole is opened and closed by the control opening, so that the suction pressure can be easily changed during milking condition You can conveniently adjust the milking pressure depending on whether or not pain,

In the piston rod inserted into the cylinder, the mucus lubricant filling groove on the groove and the check valve inserted in communication with the end of the piston are respectively embedded, thereby preventing the inflow of foreign substances by the mucus lubricant to protect the cylinder inner wall and the piston. This invention relates to a pumping part structure of an electric breast pump which has a longer service life by preventing the failure and damage of the device by discharging the pressure air in the cylinder by a check valve when a load such as a milking hose is bent.

Breast pump, pumping, cylinder, adjuster, check valve, adjusting knob

Description

Pumping part structure of electric breast pump {Pumping system of electric milking machine}             

1 is an overall separated perspective view of an electric breast pump according to the present invention;

Figure 2 is a perspective view showing the separation of the present pumping unit

3a to 3b is a cross-sectional view of the pressure regulation operation of the pumping unit of the present invention,

Figure 3a is a cross-sectional view of the pumping portion adjusted to a low pressure state

Figure 3b is a cross-sectional view of the pumping unit adjusted to a high pressure state

4a to 4b is a cross-sectional view of the piston of the present invention the pumping unit,

Figure 4a is an enlarged cross-sectional view of the piston rod during load operation

Figure 4b is an enlarged cross-sectional view of the piston rod in normal operation

Explanation of symbols on the main parts of the drawings

1,1 ': adjusting hole 2: adjusting hole

3: guide groove 4: adjustment knob

5: exhaust groove 6: exhaust hole

7: check valve 8: filling groove

9: slime lubricant 10,10 ': finishing plate

11: hose insertion hole 12: rod insertion hole

13: adhesion layer

100: main body 101: drive motor

102: reducer 103: pliers

104: cylinder 105: piston

106: piston rod

The present invention relates to an electric breast pump for milking breast milk from a mother's breast, and more particularly, by improving the pumping part of the electric breast pump, not only the user can easily adjust the pumping pressure during breast milking, but also protect the internal equipment. According to the safety design, it is the pumping part structure of the electric breast pump which prevents the excessive load on the motor and the pump as well as their connection when it is overloaded so that the service life is extended.

In general, the breast pump is used for the purpose of artificially squeezing the remaining breast milk or squeezing breast milk because the breastfeeding mother feels very severe pain in the breast when the breastfeeding mother who is breastfeeding the infant remains or the infant does not breastfeed. Will be.

Such breast pumps are currently on the market in various forms. Among them, electric motors having manual or electric vacuum pumping means for holding and pumping a vacuum pump (dropper type) by hand and squeezing breast milk are widely used.

The conventional configuration of the manual milking machine includes a suction tube in the form of a fallopian tube which is covered by the nursing unit, a vacuum pump in the form of a rubber ball that causes air pressure to be generated in the suction tube, and a baby bottle in which breast milk introduced into the suction tube is stored.

This manual milking machine milks breast milk while the user (mother) grabs the suction tube with one hand and touches the breast with the other hand while squeezing and releasing the vacuum pump with the other hand. It takes a lot of power, as well as very inconvenient to use.

In addition, when the bottle falls due to carelessness during milking, a portion of the breast milk inside the bottle is introduced into the vacuum pump, which hinders the pumping efficiency of the pump, as well as an unsanitary problem.

In addition, the configuration of the above-described electric breast pump comprises a body in which a vacuum pumping means for generating a vacuum pressure is generated from a vacuum pumping member which rotates in accordance with the driving of a motor, and connects an adsorption tube which is covered by the feeding part to one side of the body. It is equipped with a screw bottle for storing breast milk introduced into the adsorption tube is stored in the lower body.

The electric milking machine milks the breast milk introduced into the suction tube to the bottle connected to the lower part of the body by operating the vacuum pumping means inside the body by pressing the power supply button while holding the body by the user (the mother) holding the body. First of all, it is heavy because the body, the suction tube and the feeding bottle, which are equipped with a large number of parts such as a driving motor and a vacuum pumping member, are connected to the surroundings with respect to the body, and the user who uses it takes a lot of power. Will be.

In addition, during the operation of the milking machine by continuously vacuuming the air inside the milk is always fast to suck the pain, as well as the overall problem that the milking amount is significantly reduced.

Therefore, as in Patent Registration No. 390618, which is devised and registered by the applicant of the present invention, the electric vacuum pumping means for generating the air pressure required for milking is separated from the light-weight milking opening in which the adsorption tube and the baby bottle are fastened, and the mother milk is separated. By reducing the power required for milking and vacuuming the air charged in the milking machine's internal space as a repetitive cycle of a certain cycle or periodically milking the milk while releasing the vacuum pump, the pain of the breastfeeding part due to the milking of milk is eliminated. In addition, the breast milking machine has been proposed to further improve the productivity by reducing the number of parts and reducing the assembly process by simplifying the internal components.

However, since the electric breast pump as described above cannot adjust the milking amount and adjust the pressure according to the intensity of the pain received by the nursing part during milking, an unnecessarily large amount of breast milk is milked or in some cases milked by low pressure. It happens when I do not lose,

Pain on breast during milking is different depending on the health status of nursing mother and the length and shortness of lactation time. The conventional electric breast pump as described above does not take this into consideration and suffers from continuous breastfeeding because constant milking is performed at a constant pressure. Is indescribably great.

In particular, the pumping means built into the common breast pump has a problem that foreign substances generated from the inside flow into the cylinder and cause damage to the inner wall of the cylinder. Will be

When the milking hose is bent or pressed by an object during milking, excessive load is applied to the piston and the pliers and the driving motor connected to it, which leads to breakage of the piston rod, breakage of the connecting part, and shortening the life of the driving motor. There is a short lifespan.

The present invention has been made to eliminate the problems as described above, the plurality of control holes formed in the horizontal direction spaced apart in the upper side of the cylinder, the upper edge of the control hole protruding integral guide grooves formed, the guide By inserting a control device having a certain width in the groove to open and close the control hole by the control device, the suction pressure can be easily changed when milking, so that the milking pressure can be conveniently adjusted according to the condition or pain of the nursing part. To control,

The piston rod inserted into the cylinder is provided with a slime lubricant filling groove on the groove and a check valve inserted in communication with the end of the piston to prevent the inflow of foreign substances by the slime lubricant to protect the cylinder inner wall and the piston. It is an object of the present invention to provide a pumping part structure of an electric breast pump, in which a pressure valve in a cylinder is discharged by a check valve to prevent breakdown and damage of a device by a check valve when a load such as a milking hose is bent. It is.

Hereinafter, preferred embodiments of the present invention will be described.

1 is an exploded perspective view of the electric breast pump according to the present invention, Figure 2 is a perspective view showing the separation of the pumping part of the present invention.

The drive motor 101 and the reducer 102 fixed to the inside of the main body 100 and the pliers 103 coupled to one side of the reducer 102, eccentrically coupled to one side of the pliers 103 described above and the cylinder ( 104, in the known electric breast pump comprising a piston 105 and a piston rod 106 inserted therein,

On one side of the cylinder 104 to form a hose insertion hole 11 to form a closing plate 10 coupled thereto, and the other side to form a coupling of the closing plate (10 ') formed with a rod insertion hole 12,

The upper surface of the cylinder 104 is formed with a plurality of adjustment holes (1) (1 ') having a predetermined distance in the longitudinal direction, and the upper side of the adjustment holes (1) (1') a separate control opening ( 2) is inserted to form a guide groove (3) to slide, the front end of the control opening (2) is exposed to the outside of the main body 100 to be combined with a separate control knob (4),

The piston rod 106 is inserted into the rod insertion hole 12 of the closing plate 10 'and forms the exhaust groove 5 in the piston rod 106, and the piston formed at the end of the piston rod 106. In the center of the 105 to form a transverse exhaust hole (6) to communicate with each other,

An additional check valve 7 is inserted into the intersection of the exhaust groove 5 and the exhaust hole 6.

In addition, a separate filling groove 8 formed upwardly in the middle portion of the piston rod 106 is formed to fill the slime lubricant 9 therein, and between the piston rod 106 and the rod insertion hole 12. The mucous membrane by the slime lubricant 9 can be formed to block the inflow of foreign substances.

In addition, by forming an adhesive layer 13 made of a soft elastic rubber material on the upper and lower surfaces of the adjusting knob 4, the softer slip can be improved while improving the adhesion between the adjusting knob 4 and the guide groove 3. It might be possible.

Referring to the operation of the pumping portion structure of the electric breast pump of the present invention as described above in more detail by the accompanying drawings as follows.

First, the overall operating structure of the electric breast pump having the pumping part of the present invention will be described. As the power is applied to the drive motor 101 built in the main body 100, the rotational power from the drive motor 101 to the reducer 102 is reduced. When the pliers 103 are rotated to obtain a piston rod 106 eccentrically coupled to one side of the pliers 103 is a linear reciprocating motion,

The pressure hose and the milking bottle are coupled from the hose insertion hole 11 by the pumping action of the piston 105 and the cylinder 104 at the end of the piston rod 106 by the linear movement of the piston rod 106, thereby Breast milk is milked from the breast.

At this time, the nursing part should be able to adjust the milking pressure in consideration of the body condition, milking amount or pain during milking, etc., in order to control the milking pressure, the control knob 4 exposed to the main body 100 is controlled. Move left and right to control the pressure,

The lower side of the control knob (4) is coupled to the control opening (2) inside the main body 100, the control opening (2) is inserted into the upper guide groove (3) of the cylinder 104 to slide.

Therefore, the adjustment time of the adjustment knob 4 is adjusted to shorten or lengthen the pressurization time inside the cylinder 104. The upper side of the cylinder 104, that is, the bottom surface of the guide groove 3 is adjusted. The plurality of adjusting holes 1 and 1 'penetrated inside are formed at regular intervals, and the adjusting holes 1 and 1' are partially sealed from the inside by the adjusting knob 4 described above. will be.

Therefore, as shown in FIG. 3A, the adjusting knob 4 is moved to the opposite side of the pliers 103 so that all the adjusting holes 1, 1 ′ are all opened, so that the piston 105 has the initial adjusting hole 1. When the pressure reaches the position of the low pressure state as the outside air flows through the control hole 1 into the cylinder 104, the pressure was released, so that the pressure that sucked the hydraulic pressure of the feeding part is removed and milking is not performed.

That is, when the piston 105 in the state fully advanced to the end of the cylinder 104 retreats to generate a pressure and becomes a low pressure state inside the cylinder 104, the milking is performed from the breast of the nursing part by the pressure. Milking time is the distance to the point where the adjustment hole (1) (1 ') that the piston 105 is first opened is located, the milking pressure is adjusted according to the long and short of this distance.

In addition, when the amount of milking is increased or the amount of breast milk is large, when the above-mentioned adjusting knob 4 is further moved toward the pliers 103, the adjusting knob 4 is used to control the above-mentioned adjusting holes 1 and 1 '. The part is to be sealed, so that the adjustment hole (1) (1 ') is sealed is to be sequentially closed to the other side from one side closing plate (10) direction.

That is, when the control knob 4 is moved from the right side to the left side of the city, the number of the adjusting holes 1 and 1 ′ sealed by the adjusting mechanism 2 gradually increases, and thus the shutter 104 accordingly. ) Will increase the internal pressure increase time,

On the contrary, when the adjustment knob 4 moves from the left to the right in the illustration, the pressure adjusting time inside the cylinder 104 is gradually shortened since the adjusting holes 1 and 1 'which are closed are sequentially opened. The milking pressure is reduced.

In addition, the piston rod 106 is formed with a separate filling groove 8 upward, and the filling groove 8 is filled with a slime lubricant 9 such as grease, and the slime lubricant 9 described above. ) Serves to improve the airtightness between the piston rod 106 and the rod insertion hole 12 formed in the closing plate 10 ', and can enjoy adsorption effects such as dust and dust, and thus, the inside of the main body 100. In order to prevent the dust, dust, foreign matters, etc. generated from the outside or introduced into the cylinder 104 to be introduced into the cylinder 104, the smooth sliding operation of the piston rod 106 as well as blocking foreign matters. .

Particularly, in the pumping part structure of the electric breast pump according to the present invention, when the milking hose or the pressure hose is bent or pressed by an object, and the pressure transmission is impossible, damage and breakage occur due to the concentrated load due to the concentrated motor. In order to prevent this, a separate safety valve structure is adopted.

Typically, the connection between the drive motor 101 and each component connected thereto causes higher load and kinetic force to be applied in the forward state than the backward state of the piston 105, so that the movement of fluid from the milking hose or the pressure hose in this forward state And when the movement of the pressure does not occur, causing serious damage and failure,

At this time, the compressed air in the cylinder 104 is discharged to the outside from the exhaust groove 5 formed in the piston rod 106 to prevent the load from acting on the piston rod 106,

The exhaust groove 5 is formed in the piston rod 106 and communicates with the exhaust hole 6 penetrating the intermediate portion of the piston 105 laterally.

Particularly, when continuous air communication occurs through the exhaust groove 5, the pressure change inside the cylinder 104 will not occur. Thus, the check valve 7 operates only under a constant load pressure. 5) and formed at the intersection of the exhaust hole (6),

The pressure in the cylinder 104 is released during the load action by the check valve (7).

That is, the check valve 7 is a one-way valve made of silicon as shown in the figure, and is not opened by the pressure generated inside the cylinder 104 when the piston 105 is advanced, while the hose is bent or clogged. When the load is generated in the state, as shown in Fig. 4A, the internal pressure of the cylinder 104 rises, so that the check valve 7 is opened under the higher pressure, so that the high pressure compressed air escapes and acts on the piston rod 106. To offset the load.

The check valve 7 is a conventional silicone valve, and forms an incision line (not shown in the drawing) on one side, so that the elastic check valve 7 does not open under normal pressure, but only at a high pressure above a certain pressure. The incision is opened and the compressed air is moved to the low pressure side.

In particular, on the contrary, as shown in FIG. 4B, when the piston rod 106 is retracted, since the check valve 7 is closed, external air is not introduced while the check valve 7 is closed. It is to enable milking by.

Therefore, while the milking pressure of the electric coalescing machine can be more easily adjusted, the service life is extended, and safe protection can be used without failure of the device even under load caused by incorrect use.

The pumping part structure of the electric breast pump of the present invention as described above allows the suction pressure to be easily changed during milking so that the milking pressure can be conveniently adjusted according to the condition or pain of the nursing part.

It prevents the inflow of foreign substances by slime lubricant to protect the inner wall of the cylinder and the piston, and the pressure air in the cylinder is discharged when the milking hose is bent by the check valve to prevent the failure and damage of the equipment. This has a prolonged effect.

Claims (4)

The drive motor 101 and the reducer 102 fixed to the inside of the main body 100 and the pliers 103 coupled to one side of the reducer 102, eccentrically coupled to one side of the pliers 103 described above and one side In a known electric breast pump including a piston 105 and a piston rod 106 inserted into a cylinder 104, On one side of the cylinder 104 to form a hose insertion hole 11 to form a closing plate 10 coupled thereto, and the other side to form a coupling of the closing plate (10 ') formed with a rod insertion hole 12, The upper surface of the cylinder 104 is formed with a plurality of adjustment holes (1) (1 ') having a predetermined distance in the longitudinal direction, and the upper side of the adjustment holes (1) (1') a separate control opening ( 2) is inserted to form a guide groove (3) to slide, the front end of the control opening (2) is exposed to the outside of the main body 100 to be combined with a separate control knob (4), The piston rod 106 is inserted into the rod insertion hole 12 of the closing plate 10 'and forms the exhaust groove 5 in the piston rod 106, and the piston formed at the end of the piston rod 106. In the center of the 105 to form a transverse exhaust hole (6) to communicate with each other, The pumping part structure of the electric breast pump, characterized in that a separate check valve (7) is inserted into the intersection of the exhaust groove (5) and the exhaust hole (6). The method of claim 1, The check valve (7), the pumping portion structure of the electric breast pump, characterized in that the air is inserted into the exhaust groove (5) side of the piston rod 106 from the exhaust hole (6) side of the piston (105). The method of claim 1, In the middle of the piston rod 10, a separate filling groove 8 formed upward is formed and the mucus lubricant 9 is filled therein, so that the mucus lubricant (between the piston rod 106 and the rod insertion hole 12) is formed. 9) The pumping part structure of the electric breast pump characterized in that the mucosa formed by. The method of claim 1, By forming an adhesive layer 13 made of soft elastic rubber on the upper and lower surfaces of the adjusting knob 4, a softer slip is possible while improving the adhesion between the adjusting knob 4 and the guide groove 3. Pumping part structure of the electric breast pump characterized in that.

Images