KR102658467B1 - Non-power type solenoid valve - Google Patents

Abstract

The present invention is provided at the upper part of an electronic pump installed on one side of a chemical tank containing a liquid drug, and a drug transfer pipe installed on one side of the electronic pump and equipped with a plurality of nozzles to spray the drug to the outside. A non-powered solenoid valve that returns the flow direction of the air and the drug to the inside of the drug tank when air is generated between the electronic pump and the drug transfer pipe so that the inside is maintained in a vacuum state, A pipe installed at the upper end in communication with the drug transfer pipe and having an 'ㅏ' shaped longitudinal cross section; an auxiliary nozzle provided at an outlet on one side of the pipe to discharge air contained in the drug; a tension control unit provided at the outlet on the other side of the pipe and enabling tension adjustment; It is provided inside the pipe and moves up and down along the height direction of the pipe according to the pressure inside the drug transfer pipe and the degree of tension of the tension control unit, and selectively moves the air contained in the drug to the outside through the auxiliary nozzle. A pressure plate that communicates the drug transfer pipe and the auxiliary nozzle to be discharged; By providing a solenoid valve of a power-free type, it prevents normal spraying operation from occurring due to air generated inside the liquid when the electronic pump that sprays chemicals is not used for a long time or when changing chemicals, so that the electronic pump always operates normally. It has the effect of improving convenience of use by operating it.

Description

Non-power solenoid valve {NON-POWER TYPE SOLENOID VALVE}

The present invention relates to a solenoid valve of a power-free type, and more specifically, to prevent normal spraying operation from occurring due to air generated inside the liquid when the electronic pump that sprays the medicine is not used for a long time or when the medicine is exchanged. This relates to a power-free solenoid valve that can improve convenience of use by ensuring that the electronic pump always operates normally.

In general, an electronic pump is connected to a supply pipe with one end containing a chemical such as a disinfectant or air freshener, and the electronic pump is placed on the outlet side so that the chemical can be sucked in and sprayed from the chemical tank, discharging the chemical through the nozzle of the sprayer. It is structured to do so.

If this electronic pump is not used for a long time, or if the chemical tank becomes empty, or if air enters the cylinder of the electronic pump for some reason while in use, it may take a while for the chemical to reach the discharge port. Because there is a time delay, a technology was proposed that essentially attaches an air discharge valve device that can discharge air that has entered the cylinder of the electronic pump.

As such a conventional technology, an electronic pump of Publication No. 20-1997-0001426 is disclosed with a configuration as shown in Figure 1. An overview of the operating relationship of this conventional electronic pump is as follows.

When pulse current is supplied to the electromagnetic coil (1), the electromagnetic valve (2) opens and the electromagnetic plunger (3) and piston (4) move up and down, changing the volume of the pump chamber (5), and the pressurized medicine is discharged accordingly. It is configured to be discharged through the outlet (6a) of the connection part (6).

Additionally, if the chemical tank becomes empty or if air enters the cylinder (10) when starting the electromagnetic pump, turn the air discharge valve device (7) on one side in one direction to move the valve body (8). The air in the cylinder 10 is extracted by connecting the discharge port 6a with the air discharge hole 9.

However, in this source technology, the air discharge valve device (7) is used with a connection hose (H) connected to one end of the valve body (8) to discharge air that has entered the cylinder (10). In the work process, the air discharge valve device (7) is turned by hand to release it to some extent, so that the discharge hole of the discharge connection part (6) and the air discharge hole (9) of the air discharge valve device (7) are linked, and the connecting hose connected thereto is connected. Since (H) is configured so that it can be rotated and discharged at the same time and re-tightened to maintain its original state, it is very difficult to release and lock the air discharge valve device (7) by the force of the human hand, and at the same time, the release and locking operations are very difficult. There is a problem that the connected connecting hoses (H) move at the same time, making it cumbersome and inconvenient.

The purpose of the present invention, which was devised in consideration of the above points, is to prevent the phenomenon of normal spraying operation being prevented due to air generated inside the liquid when the electronic pump that sprays the medicine is not used for a long time or when the medicine is exchanged. The aim is to provide a power-free solenoid valve that can improve convenience of use by ensuring that the pump always operates normally.

The solenoid valve of the power-free type for achieving the object of the present invention as described above includes an electronic pump installed on one side of a chemical tank containing a liquid drug, and a plurality of nozzles installed on one side of the electronic pump to spray the drug to the outside. It is provided on the upper part of the drug transfer pipe, so that the inside of the electronic pump is maintained in a vacuum state. When air is generated between the electronic pump and the drug transfer pipe, the flow direction of the air and the drug is changed to the inside of the drug tank. A solenoid valve of a power-free type that returns to , a pipe installed in communication with the drug transfer pipe at an upper end of the drug transfer pipe and having a longitudinal cross section in the shape of 'ㅏ'; an auxiliary nozzle provided at an outlet on one side of the pipe to discharge air contained in the drug; a tension control unit provided at the outlet on the other side of the pipe and enabling tension adjustment; It is provided inside the pipe and moves up and down along the height direction of the pipe according to the pressure inside the drug transfer pipe and the degree of tension of the tension control unit, and selectively moves the air contained in the drug to the outside through the auxiliary nozzle. A pressure plate that communicates the drug transfer pipe and the auxiliary nozzle to be discharged; It is characterized by including.

Here, the pressure plate is provided in close contact with the inner surface of the pipe, and may be formed in a double structure in which a new column and a fluorine rubber plate are bonded to each other.

Additionally, a restraining protrusion that restricts the movement of the pressure plate may be formed protruding around the inner surface of the outlet port on the other side of the pipe where the tension adjusting unit is installed.

In addition, the tension adjusting unit is fastened between a fastening cap that is screwed to the outlet on the other side of the pipe and moves up and down along the height direction of the outlet on the other side of the pipe, and a lower surface of the fastening cap and an upper surface of the pressure plate to secure the pressure plate. It may include an elastic spring that pressurizes.

In addition, a separate level measurement sensor capable of measuring the amount of the drug contained in the drug tank may be further provided on one side of the drug tank.

In addition, the level measurement sensor may be configured with an IOCT circuit (IOCT) that transmits a signal when the amount of the drug falls below a set value and communicates with the drug replenishment company to ensure that the drug is refilled.

As discussed above, the power-free solenoid valve according to the present invention prevents normal spraying operation from occurring due to air generated inside the liquid when the electronic pump that sprays the medicine is not used for a long time or when the medicine is exchanged. The electronic pump always operates normally, which has the effect of improving convenience of use.

1 is a plan view showing the structure of a conventional electromagnetic pump;
Figure 2 is a plan view showing the structure of a power-free solenoid valve installed in an injection device according to an embodiment of the present invention;
Figure 3 is a longitudinal cross-sectional view showing the structure of a power-free solenoid valve according to an embodiment of the present invention;
Figures 4 (a) and (b) are operational diagrams showing the operation of a power-free solenoid valve according to an embodiment of the present invention.

Hereinafter, a powerless solenoid valve according to an embodiment of the present invention will be described in more detail with reference to the attached drawings.

Figure 2 is a plan view showing the structure of a power-free solenoid valve installed in an injection device according to an embodiment of the present invention, and Figure 3 is a longitudinal cross-section showing the structure of a power-free solenoid valve according to an embodiment of the present invention. 4 (a) and (b) are operational diagrams showing the operation of a power-free solenoid valve according to an embodiment of the present invention.

As shown in these drawings, the power-less solenoid valve according to an embodiment of the present invention includes an electronic pump 120 installed on one side of the chemical tank 110 containing the liquid drug, and an electronic pump 120. The electronic pump 120 is installed on one side and is provided on the upper part of the drug transfer pipe 140, which has a plurality of nozzles 130 to spray the drug to the outside, so that the inside of the electronic pump 120 is maintained in a vacuum state. ) When air is generated between the drug transfer pipe 140, it is a non-powered solenoid valve that returns the flow direction of the air and the drug to the inside of the drug tank 110, and the drug transfer pipe 140 A pipe 200 installed at the upper end in communication with the drug transfer pipe 140 and having a longitudinal cross-section in a 'T' shape; an auxiliary nozzle 300 provided at one outlet 210 of the pipe 200 to discharge air contained in the medicine; a tension adjusting unit 400 provided at the other outlet 220 of the pipe 200 and allowing tension adjustment; It is provided inside the pipe 200 and moves up and down along the height direction of the pipe 200 according to the pressure inside the drug transfer pipe 140 and the degree of tension of the tension adjustment unit 400, thereby selectively A pressure plate 500 that communicates the drug transfer pipe 140 and the auxiliary nozzle 300 so that the air contained in the drug is discharged to the outside through the auxiliary nozzle 300; It consists of:

The chemical tank 110 contains a liquid drug such as a disinfectant or air freshener, and accommodates the drug so that the drug can be sprayed to the outside through the nozzle 130 provided in the drug transfer pipe 140 when necessary. It plays a role.

The electronic pump 120 is provided on one side of the chemical tank 110, and is connected to the chemical transfer pipe 140 on the other side of the electronic pump 120, so that the chemical contained within the chemical tank 110 is applied to the nozzle 130 when necessary. ) serves to provide power that can be discharged to the outside.

This electronic pump 120 is a pump that increases the pressure of the liquid and transfers it by applying a magnetic field to the conductive liquid in the pipe and sending current at right angles to both the pipe axis and the magnetic field. The basic structure is a liquid flow pipe and a magnetic field that operates. It consists of an electromagnet and electrodes for sending direct current into the liquid. Types of such pumps include direct-current conduction pumps and inductive pumps that use a forward field that applies the principles of alternating current induction motors. There are induction electromagnetic pumps, etc.

The nozzle 130 serves as an outlet through which the medicine contained in the medicine tank 110 is sprayed to the outside, and for this purpose, the height of the medicine transfer pipe 140 is connected to the medicine transfer pipe 140 on one side of which is in communication with the electronic pump 120. There are multiple installations along the direction.

One side of the chemical transfer pipe 140 is installed in communication with the electronic pump 120 and extends a certain length to enable installation of a plurality of nozzles 130, and a power-free solenoid valve according to the present invention is installed at the top. .

In addition, it is effective to further provide a separate level measurement sensor 150 on one side of the drug tank 110 that can measure the amount of the drug contained in the drug tank 110. This level measurement sensor 150 It may be configured with an IOCT circuit (IOCT) that sends a signal when the amount of the drug falls below a set value and communicates with the drug replenishment company to ensure that the drug is refilled.

The pipe 200 constituting the solenoid valve of the non-power type is installed at the upper end of the drug transfer pipe 140 in communication with the drug transfer pipe 140 and is formed to have an 'ㅏ' shaped longitudinal cross section.

This pipe 200 is formed to have an 'ㅏ' shaped longitudinal cross section so that one side outlet 210 where the auxiliary nozzle 300 is installed and the other side outlet 220 where the tension adjuster 400 is installed are formed. It is effective.

In addition, a restraining protrusion 221 that restrains the movement of the pressure plate 500 is protruded around the inner surface of the outlet 220 on the other side of the pipe 200 where the tension adjusting unit 400 is installed, thereby causing excessive upward movement of the pressure plate 500. It is desirable to prevent this.

The auxiliary nozzle 300 is provided at the outlet 210 on one side of the pipe 200 and serves as a passage through which the medicine is sprayed.

The tension control unit 400 is provided at the outlet 220 on the other side of the pipe 200 and enables tension adjustment. This tension control unit 400 is screwed to the outlet 220 on the other side of the pipe 200. It is fastened between the fastening cap 410, which moves up and down along the height direction of the outlet 220 on the other side of the pipe 200, and the lower surface of the fastening cap 410 and the upper surface of the pressure plate 500 to pressurize the pressure plate 500. It is composed of an elastic spring 420.

The fastening cap 410 has threads formed on the lower outer surface and is installed to engage with the threads formed on the inner surface of the other outlet 220, so that the tension of the elastic spring 420 can be adjusted through rotation of the fastening cap 410.

The elastic spring 420 is installed so that its upper end is in contact with the inner lower surface of the fastening cap 410 and the other end is in contact with the upper surface of the pressure plate 500, thereby providing a pressing force toward the pressure plate 500 and moving the pressure plate 500 to release the medicine. The degree to which the transfer pipe 140 and one side outlet 210 can communicate is set.

That is, in a state where a large tension is applied to the elastic spring 420 by the fastening cap 410, when a large pressure is applied through the drug transfer pipe 140, the drug transfer pipe 140 and one side outlet 210 In a state where communication is maintained and, on the contrary, a small tension is applied to the elastic spring 420 by the fastening cap 410, the pressure plate 500 maintains the pipe 200 even when a small pressure is applied through the chemical transfer pipe 140. It moves up and down accordingly so that the chemical transfer pipe 140 and one side outlet 210 can communicate.

The pressure plate 500 is provided in close contact with the inner surface of the pipe 200, and is formed in a double structure in which a new column 510 and a fluorine rubber plate 520 are bonded to each other.

The upper surface of the pressure plate 500 is provided with a support shaft 530 on which the elastic spring 420 is inserted into the outer surface so that the elastic spring 420 constituting the tension adjustment unit 400 can be maintained in contact with the pressure plate 500. This protruding formation is formed.

The length of the support shaft 530 must be relatively shorter than the length of the elastic spring 420, and the elastic spring 420 is used to form the necessary tension when the elastic spring 420 is pressed by the fastening cap 410. It is desirable to have a length that can sufficiently pressurize.

The process of operating the powerless solenoid valve according to an embodiment of the present invention having this configuration will be described with reference to FIG. 4 as follows.

First, in a state where no air is generated between the electronic pump 120 and the drug transfer pipe 140, the pressure plate 500 is maintained in a state of moving up and down, as shown in (a) of FIG. 4.

In this state, the tension of the elastic spring 420 of the tension adjusting unit 400 and the pressure for spraying the drug inside the pipe 200 by the electronic pump 120 are the same, so the pressure plate 500 is connected to the other outlet. The state of being lifted and moved along the height direction of (220) is maintained.

In addition, when the pressure plate 500 is moved up and down, the drug transfer pipe 140 and the auxiliary nozzle 300 are in communication, so when the user wants, the drug is sprayed into the spray nozzle 130 by the operation of the electronic pump 120. ) and is sprayed to the outside through the auxiliary nozzle 300, allowing the user to apply and use chemicals such as disinfectants or air fresheners on the body.

If air is generated between the electronic pump 120 and the drug transfer pipe 140, as shown in (b) of FIG. 4, the drug inside the pipe 200 by the electronic pump 120 Since the pressure for spraying is less than the tension of the elastic spring 420 of the tension adjusting unit 400, the pressure plate 500 moves downward along the height direction of the pipe 200.

Due to the downward movement of the pressure plate 500, the direction of flow of air and medicine is returned to the side of the medicine tank 110 connected to the lower part of the medicine transfer pipe 140, so that the air and the medicine containing air are inside the medicine tank 110. By allowing the inside of the electronic pump 120 to be in a vacuum state, the generated air is removed.

When the air between the drug transfer pipe 140 and the electronic pump 140 is removed through the above process, the electronic pump 120 operates normally and the pressure plate 500 returns to the state shown in (a) of FIG. A fine particle nozzle is generated in the electronic pump 120 and sprayed through the nozzle 130 and the auxiliary nozzle 300.

The non-power solenoid valve having the above configuration prevents normal spraying operation from occurring due to air generated inside the liquid when the electronic pump that sprays the drug is not used for a long time or when the drug is exchanged. Convenience in use can be improved by always operating normally.

The above is only a description of some of the preferred embodiments that can be implemented by the present invention, and therefore, as is well known, the scope of the present invention should not be construed as limited to the above embodiments, and the scope of the present invention as described above should not be construed. Both the technical idea and the technical idea underlying it will be said to be included in the scope of the present invention.

110: Chemical tank 120: Electronic pump
130: Nozzle 140: Drug transfer pipe
150: Level measurement sensor 200: Piping
210: one side discharge pipe 220: other side discharge pipe
300: Auxiliary nozzle 400: Tension control unit
410: Fastening cap 420: Elastic spring
500: pressure plate 510: new stock
520: Fluororubber plate

Claims (6)

A chemical transfer pipe including an electronic pump 120 installed on one side of the chemical tank 110 containing the liquid drug, and a plurality of nozzles 130 installed on one side of the electronic pump 120 to spray the drug to the outside. When air is generated between the electronic pump 120 and the drug transfer pipe 140 so that the inside of the electronic pump 120 is maintained in a vacuum state, the flow direction of the air and the drug is provided at the top of the (140). As a power-free solenoid valve that returns to the inside of the chemical tank 110,
A pipe 200 installed at the upper end of the drug transfer pipe 140 in communication with the drug transfer pipe 140 and having a longitudinal cross-section in the shape of an 'ㅏ'shape;
an auxiliary nozzle 300 provided at one outlet 210 of the pipe 200 to discharge air contained in the medicine;
a tension adjusting unit 400 provided at the other outlet 220 of the pipe 200 and allowing tension adjustment;
It is provided inside the pipe 200 and moves up and down along the height direction of the pipe 200 according to the pressure inside the drug transfer pipe 140 and the degree of tension of the tension adjustment unit 400, thereby selectively A pressure plate 500 that communicates the drug transfer pipe 140 and the auxiliary nozzle 300 so that the air contained in the drug is discharged to the outside through the auxiliary nozzle 300;
A power-free solenoid valve characterized in that it includes. According to paragraph 1,
The pressure plate 500 is provided in close contact with the inner surface of the pipe 200, and is a non-powered solenoid valve, characterized in that it is formed in a double structure in which a new column 510 and a fluorine rubber plate 520 are bonded to each other. According to paragraph 2,
A non-powered solenoid valve, characterized in that a restraining protrusion 221 that restricts the movement of the pressure plate 500 is formed protruding around the inner surface of the outlet 220 on the other side of the pipe 200 where the tension adjusting unit 400 is installed. . According to paragraph 1,
The tension adjusting unit 400 includes a fastening cap 410 that is screwed to the other side outlet 220 of the pipe 200 and moves up and down along the height direction of the other side outlet 220 of the pipe 200, A power-free solenoid valve, characterized in that it includes an elastic spring 420 that is fastened between the lower surface of the fastening cap 410 and the upper surface of the pressure plate to pressurize the pressure plate. According to any one of claims 1 to 4,
A solenoid valve of a power-free type, characterized in that one side of the drug tank 110 is further provided with a separate level measurement sensor 150 that can measure the amount of the drug contained in the drug tank 110. According to clause 5,
The level measurement sensor 150 is a power-free type characterized in that it is composed of an IOCT circuit (IOCT) that transmits a signal when the amount of the drug falls below the set value and communicates with the drug replenishment company to ensure that the drug is refilled. Solenoid valve.

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