KR0133156Y1 - Sprayer using liquified gas - Google Patents

Abstract

The present invention relates to an automatic sparging machine using liquefied gas, and includes a chemical container (10) for storing a chemical liquid of a liquid, and a gas provided with a gas cylinder (22) for supplying liquefied gas through the gas inlet pipes (23) (24). It is in communication with the supply means 20 and the gas inlet pipes 23 and 24, respectively, and reciprocates alternately to inhale and discharge the chemical liquid according to the inflow force of the liquefied gas, and supports the ball with the elastic members 34 and 44. The first and second cylinders 30 and 40 having the first and second pistons 32 and 42 and the first and second cylinders according to the reciprocating motion of the first and second pistons 32 and 42. Gas passage switching means 70 driven to open and close gas inlet pipes 23 and 24 leading to (30) and (40), and chemical suction of each of the first and second cylinders (30) and (40), respectively. A plurality of check valves 51, 53, 61 installed in the discharge pipes 52, 54, 62, 64 to prevent backflow of the chemical flowing into each of the cylinders 30, 40 and discharge only in a certain direction. (3) and the drug Characterized in that the spray pipe 100 is provided with a plurality of injection nozzles 102 for spraying the drug discharged through the outlet pipe (62, 64) to the outside, the piston in both cylinders in accordance with the suction of gas pressure By repeatedly reciprocating operation, the drug can be continuously sucked and discharged, and thus the effect of performing a simple and high power spraying function is great.

Description

Automatic spreader using liquefied gas

The present invention relates to an automatic spraying machine for spraying drugs such as pesticides, in particular, liquids using liquefied gas, and more particularly, by alternately introducing the vapor pressure generated when the liquefied gas is vaporized at room temperature into a plurality of cylinders. The present invention relates to an automatic spreader using a liquefied gas that can be automatically sprayed with a medicament by being sucked and discharged to.

Generally, a sprayer used for spraying drugs such as pesticides and fertilizers is used to prevent normal development or disease of crops or plants, and FIG. 1 illustrates a conventional manual sprayer.

In the drawing, the conventional manual sprayer is sprayed into a chemical container 1 and a spray pipe 3 having a plurality of injection nozzles 3a at the distal end of the drug discharge pipe 2 drawn out of the medicine container 1. It is provided.

In particular, the inside of the medicine container (1) is provided with a compression spring (4) at its lower end, the elevating plate (5) is in contact with the top surface of the spring (4).

The lifting plate 5 is connected to a winding rope 6 which can be wound and unwound by the operation of the lever 7, which is a driving means installed outside the medicine container 1, at the lower end thereof, while a medicine is embedded therein. The corrugated container 8 is seated.

And through the discharge hole (8a) of the upper end of the corrugated tube (8) is connected to the drug discharge pipe (2) for discharging the drug.

In the conventional spreader configured as described above, when the winding rope 6 is released by repeated before and after operation of the lever 7, the spring 4 in the compressed state is relaxed, so that the corrugated container 8 is compressed upward. Is sprayed manually through the nozzle (3a) of the spray tube (3).

However, such a conventional manual spreader has to continuously operate the lever 7 manually for the spraying operation of pesticides, causing workers to feel uncomfortable and tired quickly, and cause a problem of lowering work efficiency. .

Accordingly, the present invention was devised to solve the above-mentioned problems, and an object of the present invention is to make the suction and discharge of medicines alternately by alternately introducing the vapor pressure of the liquefied gas into a plurality of cylinders, thereby making it easier to carry out continuous manual operation. It is to provide an automatic sprayer using the liquefied gas that can automatically spray the drug.

The automatic spreader using the liquefied gas according to the present invention for achieving the above object, the chemical container 10 for storing the chemical liquid of the drug, and the gas cylinder for supplying the liquefied gas through the gas inlet pipe (23) 24 ( 22 is provided with the gas supply means 20 and the gas inlet pipes 23 and 24, respectively, are in reciprocating motion to alternately intake and discharge the chemical liquid in accordance with the inflow force of the liquefied gas and the elastic member 34 In the reciprocating motion of the first and second cylinders 30 and 40 having the first and second pistons 32 and 42 which are elastically supported by 44, And gas passage switching means 70 which is driven to alternately open and close gas inlet pipes 23 and 24 leading to the first and second cylinders 30 and 40, and the first and second cylinders 30 and 40. A plurality of check valves 51 installed in each of the chemical intake and discharge pipes 52, 54, 62 and 64 to prevent the backflow of the chemical flowing into the cylinders 30 and 40 and discharge only in a predetermined direction (51). ) ( 53, 61, 3, and the spray pipe 100 is provided with a plurality of spray nozzles 102 for spraying the drug discharged through the drug discharge pipe 62, 64 to the outside. .

1 is a cross-sectional view showing the overall configuration of a conventional manual spreader.

Figure 2 is a cross-sectional view showing the overall configuration of the automatic spreader according to the present invention.

* Explanation of symbols for main parts of the drawings

10: medicine container 20: gas supply means

22: gas cylinder 23, 24: gas inlet pipe

25, 26: gas discharge pipe 28: gas control valve

29 pressure reducing valve 30 first cylinder

32: first piston 34, 44: elastic member

40: second cylinder 42: second piston

50, 52, 54: drug intake pipe 60, 62, 64: drug discharge pipe

51, 53, 61, 63: check valve 70: gas passage switching means

72: 4 port switching valve 74: link member

76: guide member 78: switching member

80: accumulator 90: combustor

100: spray tube 102: injection nozzle

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

2 is a cross-sectional view showing the overall configuration of the automatic spreader according to the present invention.

In FIG. 2, the automatic spreader according to the present invention is provided with a medicine container 10, a gas supply means 20, first and second cylinders 30 and 40, a gas passage switching means 70, and a minute. It is roughly comprised by attaching 100.

In detail, the medicine container 10 is filled with drugs such as pesticides, in particular, in a liquid state, and the gas container 22 provided in the gas supply means 20 is a liquefied gas, for example, butane gas and CO. ₂ gases, liquid oxygen, and the like are stored, and the gases are liquefied by applying an appropriate pressure to a gas cooled below a critical temperature.

And the gas supply means 20 is a gas control valve for controlling the supply amount of the liquefied gas on the gas inlet pipes (23, 24) respectively leading from the gas cylinder 22 into the first and second cylinders 30, 40 And a check valve 21 for preventing backflow on each of the gas discharge pipes 25 and 26 through which the gas is discharged.

Here, the gas discharge pipe (25) 26 is preferably provided with a combustor (90) to further burn the gas discharged to preheat the gas cylinder 22 can further increase the discharge vapor pressure of the liquefied gas.

In addition, the gas inlet pipe 23, 24 is more preferably provided with a pressure reducing valve 29 so as to maintain a constant pressure of the gas supplied through it to be supplied into the cylinder (30, 40).

First and second cylinders 30 and 40 are connected to the gas inlet pipes 23 and 24, respectively, and liquefied gas supplied from the gas cylinder 20 in the first and second cylinders 30 and 40. The first and second pistons 32 and 42 reciprocating are provided to automatically inhale and discharge the chemical liquid of the medicine container 10 using the vapor pressure of.

Here, the first and second pistons 32 and 42 are elastically supported by the elastic members 34 and 44, respectively.

On the other hand, the first and second pistons 32 and 42 are connected to the walls of the first and second cylinders 30 and 40 on the opposite sides of the gas inlet pipes 23 and 24, respectively, and communicate with the chemical container 10, respectively. The drug intake pipe 50 and the drug discharge pipe 60 communicating with the nebulizer 100 are provided, and two pipes are provided for each cylinder, that is, the drug intake and discharge pipes 52 and 62 on the first cylinder 30 side. ) And the chemical | medical agent intake and discharge pipe | tube 54 (64) of the 2nd cylinder 40 side, and it mutually communicates.

Here, check valves 51, 61, 53, and 63 are installed between the drug intake and discharge pipes 52, 54, 62, and 64 so that the drug flows only in the direction of the arrow shown in the drawing. do.

And it is preferable that the accumulator 80 is provided between the drug discharge pipe 60 and the spray pipe 100 to spray the medicine evenly.

On the other hand, the gas passage switching means 70 is a four-port switching valve 72 at the intersection of the gas inlet pipe 23, 24 and the discharge pipe 26 in accordance with the reciprocating motion of the first and second pistons 30 and 40. ) To open and close the gas pressure flowing into both cylinders 30 and 40 alternately.

That is, the gas passage switching means 70 is a four-port opening and closing operation so that the gas inlet, discharge pipes 23, 24, 26 can alternately communicate with the first cylinder 30 or the second cylinder 40. A part of the selector valve 72, the link member 74 connected to operate the four port selector valve, and the first and second cylinders 30 and 40 are respectively inserted into the first and second cylinders 32. A guide member 76 which is contacted when the bottom dead center of the blade 42 is reached, and a switching member 78 which is alternately connected according to the operation of the guide member 76 to operate the link member 74. Equipped.

Referring to the operation relationship of the automatic spreader of the present invention configured as described above are as follows.

First, when the liquefied gas is introduced from the gas cylinder 22 into the first cylinder 30 through the gas inlet pipe 23 bypassed by the four-port switching valve 72, the liquefied gas enters the elastic member 34 by the gas pressure. As the elastically supported first piston 32 is compressed, the chemical liquid that has already flowed into the cylinder 30 is pressurized to the spray tube 100 through the drug discharge pipe 62 and then sprayed to the outside by the spray nozzle 102. Discharged.

On the other hand, since the gas discharge pipe 26 is in the open state by the four-port switching valve 72, the second cylinder 40 recovers the compressed elastic member 44 while the inflow gas is discharged, and at the same time the chemical container ( 10) the drug is sucked through the drug suction pipe (54).

On the other hand, when the first piston 32 reaches the bottom dead center and contacts the guide member 76 embedded in the first cylinder 30, the guide member 76 supported by the elastic member 79 is the switching member 78. Is operated to switch the gas passage by the link member 74 to the four-port switching valve 72.

Thereafter, the gas discharge pipe 26 in the first cylinder 30 is opened, and the gas introduced therein is discharged and at the same time the first piston 32 is lifted up by the relaxation of the elastic member 34, the drug suction pipe 52 is provided. The drug is introduced through.

Of course, the check valves 51, 53, 61, and 63 provided on the drug intake and discharge pipes 52, 54, 62, and 64 are opened only in the direction shown in the drawing, so that the medicine is sucked and discharged. Does not inhibit.

In the following operation, since the operations in the first and second cylinders 30 and 40 are reversed to each other, further description will be omitted.

As described above, the automatic nebulizer according to the present invention is capable of continuously inhaling and discharging drugs by repeatedly reciprocating the pistons in both cylinders in accordance with the suction of gas pressure, thus having a large effect of performing a simple and high power spraying function. .

Claims (4)

A gas supply means (20) provided with a medicine container (10) for storing a liquid medicine solution, a gas container (22) for supplying liquefied gas through gas inlet pipes (23) and (24), and the gas inlet pipe (23). The first and second pistons 32 and 42, which are in communication with each of the 24 and respectively, and reciprocate alternately to inhale and discharge the chemical liquid according to the inflow force of the liquefied gas, and are elastically supported by the elastic members 34 and 44. Gas inlet pipe 23 leading to the first and second cylinders 30 and 40 and the first and second cylinders 30 and 40 according to the reciprocating motion of the first and second pistons 32 and 42. Gas passage switching means 70 which is driven to open and close the 24) and the chemical intake and discharge pipes 52, 54, 62 and 64 of the first and second cylinders 30 and 40 respectively. A plurality of check valves 51, 53, 61 and 3 installed in the cylinders 30 and 40 to prevent the backflow of the medicine flowing into the cylinders 30 and 40 and to discharge only in a predetermined direction, and the medicine discharge pipe 62; 64) spraying the drug discharged through the outside Automatic sprayer using a liquefied gas, characterized in that consisting of a spray pipe 100 is provided with a spray nozzle (102). The gas port switching means (70) of claim 1, wherein the gas passage switching means (70) is opened and closed so as to alternately communicate the gas inflow pipes (23) and (24) with the first cylinder (30) or the second cylinder (40). A part of the selector valve 72, the link member 74 connected to operate the four-port selector valve 72, and the first and second cylinders 30 and 40 are respectively inserted into the first and second switches. A guide member 76 which is in contact operation upon reaching the bottom dead center of the pistons 32 and 42 and a switching member which is alternately connected according to the operation of the guide member 76 to enable the link member 74 to operate. Automatic spreader using liquefied gas, characterized in that it comprises a 78). According to claim 1, wherein the gas supply means 20 is characterized in that the combustor 90 is further provided to burn the gas discharged through the gas discharge pipe (25, 26) to preheat the gas cylinder (22). Automatic sprayer using liquefied gas to make. The pressure reducing valve (29) of claim 1, wherein the gas supply means (20) maintains a constant pressure of the gas supplied through the gas inlet pipes (23) and (24) and supplies the pressure into the cylinders (30) and (40). Automatic spreader using liquefied gas characterized in that it further comprises).