JP5346983B2 - Simple sprayer - Google Patents

Abstract

A simple spraying machine (1) possesses a hand-pull type carrying vehicle body (4) possessing at least one wheel (8), a liquid medicine groove (14) and a diluent groove(15) loaded on the carrying body (4), a pump for pumping the liquid medicine in the liquid medicine groove (14) and the diluent in the diluent groove(15), a mixer for mixing the liquid medicine in the liquid medicine groove (14) and the diluent in the diluent groove(15) and enabling the pump to absorb the mixed liquid, a spraying nozzle (50) for spraying the mixed liquid discharged from the pump, a solar cell panel (5) used for transforming the solar energy into electric energy, a storage battery for accumulating the electricity come from the solar cell panel (5) or an external power supply; and a power supplying device for supplying electricity come from the solar cell panel (5) or the external power supply to the pump. The purpose of the invention is to provide the simple spraying machine which enables the spraying work to be more continuous even though the storage battery charging the electricity is used.

Description

  The present invention relates to a hand-operated simple sprayer in which a cart body that travels on wheels is equipped with a liquid tank, a pump, a pump drive source, and a spray nozzle.

  Conventionally, as this type of sprayer, for example, the one described in Patent Document 1 below is known. The sprayer described in this document is one in which a power unit for spraying such as a prime mover and a pump, a spray liquid tank, and a spray nozzle are mounted on a mounting portion of a hand-held two-wheel cart body. In this sprayer, while holding the handle with one hand and rolling the cart body, a chemical solution such as a herbicide is sprayed from the spray nozzle held with the other hand.

JP 2010-1000018 A

By the way, since the conventional sprayer as described above is equipped with a prime mover, there is no need to worry about consumption of charge as in the case of using a storage battery. However, since the prime mover is relatively heavy, it is considered unsuitable for work on agricultural land with steep mountain slopes.
Then, although it is possible to drive a pump using the charging power of a storage battery as a motive power source, since the charging capacity of a storage battery is limited, there exists a possibility that long-time spraying work cannot be performed. Therefore, it is hoped that the spraying operation in the case of using a storage battery will be continued further. On the other hand, there are places where wheels cannot be driven on mountainous fields or farms with tight slopes.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a simple sprayer capable of continuing the spraying operation even when a storage battery charged with electric power is used. .

In order to achieve the above object, a simple sprayer according to the present invention includes a hand-operated cart body having at least one wheel, a chemical tank and a diluent tank mounted on the cart body, A pump that pumps up the chemical and the diluent in the diluent tank, a mixer that mixes the chemical from the chemical tank and the diluent from the diluent tank, and sucks the mixture into the pump; Spray nozzle for injecting liquid mixture, solar battery panel for converting solar energy into electric power, storage battery for storing power from the solar battery panel or external power source, and power for supplying power from the solar battery panel or storage battery to the pump a supply device, the chemical liquid in the chemical liquid tank is aspirated and made the sucked a predetermined amount of liquid medicine and a syringe for injecting the diluent of the diluent in the tank, the injector, A measuring portion comprising a measuring cylinder and a measuring piston that slides in the measuring cylinder, an air venting cylinder having a larger diameter than the measuring cylinder and extending from the measuring cylinder, and for measuring An air bleed portion formed of an air bleed piston that extends from the piston and slides in the air bleed cylinder, and one end is charged into the chemical solution in the chemical tank and the other end is the tip opening of the measuring cylinder A suction pipe having a first check valve that allows fluid flow only in a direction toward the measuring cylinder, one end connected to the air venting cylinder, and the other end connected to the chemical tank. A return conduit having a second check valve that allows fluid flow only in the direction toward the chemical tank, and one end connected to the tip opening of the measuring cylinder and the other connected to the diluent tank. An injection conduit having a third check valve that allows fluid flow only in a direction towards the liquid tank, are the configuration with.

  According to the simple sprayer according to the present invention, the solar battery panel that converts solar energy into electric power, the storage battery, and the power supply device that supplies the electric power from the solar battery panel or the storage battery to the pump are provided. The solar energy can be used to drive the pump to spray from the spray nozzle. Thereby, even when the electric power charged in the storage battery is consumed by the spraying work and it becomes difficult to continue the work, the spraying work can be further continued using the power from the solar cell panel. Alternatively, when the spraying operation is not performed, it is possible to charge the storage battery with electric power from the solar cell panel in preparation for the next operation.

Furthermore, the chemical liquid in the chemical liquid tank is aspirated, because the sucked a predetermined amount of liquid medicine and a syringe to inject the diluent in the diluent tank, diluted with diluent to accurately weigh a predetermined quantity of liquid medicine Mixing can be performed, and a liquid mixture with an accurate dilution ratio can be obtained. Thereby, even an insecticide with a high dilution ratio can be appropriately used for spraying. Moreover, it is not necessary to use a small-capacity measuring cup that is easily mis-measured, and it is possible to save the trouble of washing the used cup.

It is an external view of the simple sprayer which concerns on one Embodiment of this invention. It is side sectional drawing of the dilution liquid tank and chemical | medical solution tank of the said simple type sprayer. It is a front sectional view of the diluent tank. It is an external view of the mixer of the said simple sprayer. It is a schematic whole block diagram of the said simple sprayer. It is a control system block diagram of the said simple sprayer. It is a side view of the said simple sprayer. It is state explanatory drawing which shows the state which orient | assigned the solar cell panel of the said simple sprayer horizontally. It is a usage-mode explanatory drawing which shows the state which spread | disperses a chemical | medical solution while handing the said simple sprayer. It is a sectional side view of the state which made the said dilution liquid tank and a chemical | medical solution tank slant. It is usage condition explanatory drawing which shows the state which uses the spraying unit removed from the cart unit. It is an external view of the injection device of the simple sprayer. FIG. 3 is a side sectional view showing the injector and its accompanying structure. It is operation | movement explanatory drawing which shows the operation | movement which suck | inhales a chemical | medical solution and air into the cylinder for measurement of the said injector and the cylinder for air release. It is operation | movement explanatory drawing which shows the operation | movement which returns a chemical | medical solution and air to a chemical | medical solution tank. It is operation | movement explanatory drawing which shows the operation | movement which sent out the chemical | medical solution after measurement with the cylinder for measurement to a diluent tank.

Embodiments of the present invention will be described with reference to the drawings. The embodiment described below is merely an example embodying the present invention, and does not limit the technical scope of the present invention. 1 is an external view of a simplified sprayer according to an embodiment of the present invention, FIG. 2 is a side sectional view of a diluent tank and a chemical tank of the simplified sprayer, and FIG. 3 is a front sectional view of the diluent tank. 4 is an external view of the mixer of the simplified sprayer, FIG. 5 is a schematic overall configuration diagram of the simplified sprayer, and FIG. 6 is a control system configuration diagram of the simplified sprayer.
In each figure, a simple sprayer 1 according to this embodiment includes a cart unit 2 in which a solar cell panel 5 for converting solar energy S into electric power is mounted on a cart body 4, a spray unit 3 including a spray nozzle 50, and the like. It consists of and. The spray unit 3 includes a chemical tank 15, a diluent tank 14, a pump 46, a mixer 28, a spray nozzle 50, and a control device 60 including a power supply device 61.

  In the cart body 4, the eaves frames 11, 11 are erected on the front ends of the front and rear frames 9, 9 arranged in parallel, and the mounting table 13 is installed on the front and rear frames 9, 9. The rear portions of the front and rear frames 9 and 9 are leg portions 9A that are bent downward and connected. Below the front and rear frames 9, 9, left and right vehicle bearings 10, 10 are suspended, and two wheels 8, 8 are pivotally supported by these vehicle bearings 10, 10. A handle portion 12 for handwork is bridged between the upper end portions of the heel frames 11 and 11. A diluent tank 14 is mounted on the mounting table 13 of the cart body 4. Concave-shaped receiving members 54, 54 are fixed rearwardly by welding or the like at the upper and lower central lower portions of the left and right saddle frames 11, 11 in the cart body 4. Screws 55 and 55 that are screwed into female screw holes (not shown) formed on both the left and right side surfaces of the diluent tank 14 are placed and supported on the receiving members 54 and 54 of the cart body 4 so as to be detachable. Thus, the spray unit 3 is detachably attached to the cart unit 2.

  The diluent tank 14 is a rectangular box-shaped container that has a liquid inlet 16 on the upper surface and stores the diluent W (for example, water), and a storage recess 26 is formed on the rear surface thereof. In the storage recess 26 of the diluent tank 14, a drive unit 40 described later is stored. The liquid inlet 16 of the diluent tank 14 is sealed with a cap 17. At the bottom in the diluent tank 14, the front left and right central portions are the lowest bottom surface 19. On the left and right sides of the lowermost bottom surface 19, inclined bottom surfaces 20, 20 for collecting liquid on the lowermost bottom surface 19 are formed. A liquid discharge port 18 is formed on the side surface in the vicinity of the lowermost bottom surface 19, and the liquid discharge port 18 is normally sealed with a cap. Ribs 21 and 21 are formed at the upper left and right ends of the diluent tank 14, and a suspension hole 22 for hooking a snap ring 68 (see FIG. 11) of the belt 69 described later is formed on these ribs 21 and 21. Is formed.

  The chemical liquid tank 15 is a box-shaped container having a liquid inlet 34 in the upper part and storing the chemical liquid M (for example, insecticide), and is often formed with a smaller capacity than the diluent tank 14. The chemical tank 15 is attached to the back surface of the casing of the drive unit 40 housed in the storage recess 26 of the diluent tank 14. The liquid inlet 34 is disposed to be inclined rearward by an angle θ with respect to the back surface of the diluent tank 14. This angle θ is an angle at which the chemical M can be easily introduced from the liquid inlet 34 when the simple sprayer 1 is set upright (see FIG. 7), and the simple sprayer 1 is handed over when spraying the nozzles. When the liquid inlet 34 is inclined at an angle that makes the core of the liquid inlet 34 be vertical, so that the chemical M is less likely to spill from the liquid inlet 34 even when the cap 35 that seals the liquid inlet 34 is loose. It has become.

  A relay pipe portion 23 is provided through the side wall of the diluent tank 14 in the storage recess 26. Pipes 24, 24 are connected to both ends of the relay pipe part 23. A suction port 25 with a weight to be put on the lowermost bottom surface 19 of the diluent tank 14 is attached to the tip of the one pipe line 24. The tip of the other pipe line 24 is connected to a diluting liquid inlet side pipe line 29 of the mixer 28 described later. And the relay pipe part 38 is penetrated by the side wall of the chemical | medical solution tank 15, and the side wall of the casing of the drive part 40. As shown in FIG. Pipes 36 and 36 are connected to both ends of the relay pipe part 38. A suction port 37 with a weight to be put on the bottom surface of the chemical liquid tank 15 is attached to the distal end of the one conduit 36. The other end of the conduit 36 is connected to the chemical solution inlet side conduit 31 of the mixer 28. An open / close valve 56 that is manually opened and closed is provided in either of the pipes 36 and 36, for example.

  The mixer 28 includes a main body casing 30 that is a tubular body, a diluting liquid inlet side pipe 29 that is branched and connected to the inlet side of the main body casing 30 and into which the diluting liquid W in the diluting liquid tank 14 is introduced, and the main body casing 30. The chemical solution inlet side conduit 31 into which the chemical solution M in the chemical solution tank 15 is introduced by branching connection to the inlet side of the main body casing 30 and the liquid outlet side conduit 32 connected to the outlet side of the main body casing 30. The liquid discharge side pipe line 32 is connected to the suction side of the pump 46 through a pipe line 45. The diluting solution inlet side conduit 29 and the chemical solution inlet side conduit 31 are formed to be separable, and the respective divided portions are connected to each other by caps 33 and 33 so as to be separable. A check valve 42 and an orifice 41 that allow only fluid flow toward the pump 46 are disposed in the diluent inlet side conduit 29. A check valve 44 that allows only fluid flow toward the pump 46 and an orifice 43 having a diameter φ2 smaller than the diameter φ1 of the orifice 41 are also provided in the chemical solution inlet side pipe 31. The hole diameter ratio (= φ1 / φ2) between the orifice 41 and the orifice 43 varies depending on the type, use, and working state of the chemical solution M. When the chemical solution M is, for example, a herbicide, the dilution ratio is 9/1 to 50/1. The hole diameter ratio is selected so as to be about the same. The mixer 28 mixes the chemical liquid M from the chemical liquid tank 15 and the diluent W from the diluent tank 14 at a predetermined ratio, and causes the pump 46 to suck the mixed liquid Y.

  The discharge side of the pump 46 is connected to the end side of the handle 48 of the spraying basket through a hose 47. The handle 48 is provided with a valve body (not shown) that is opened and closed by a handle 52 that swings around the pivot 51 and a hand switch 53 that detects the opening of the valve body by detecting the swing of the handle 52. Yes. A spray tube 49 is connected to the tip of the handle 48, and a nozzle 50 for injecting the mixed liquid Y mixed by the mixer 28 is disposed at the tip of the spray tube 49.

  In addition to the pump 46, the above-described drive unit 40 is provided with a control device 60. The control device 60 includes a power supply device 61, a toggle switch 62, an AD converter 63, an outlet 64, a storage battery 65, and a connection terminal 66. The connection terminal 66 is detachably connected to the connection terminal 67 of the solar cell panel 5. The solar battery panel 5, the hand switch 53, the toggle switch 62, the AD converter 63 and the storage battery 65 are connected to the input side of the power supply device 61. The motor of the pump 46 and the power supply device 61 are connected to the output side of the power supply device 61. A storage battery 65 is connected. The toggle switch 62 interrupts the wiring between the storage battery 65 and the power supply device 61 to prevent wasteful discharge from the storage battery 65 when not needed.

  The specifications of the simple sprayer 1 are examples, but the internal volume of the diluent tank 14 is 5 L, the internal volume of the chemical liquid tank 15 is 500 mL, the total weight is 4.4 kg, and the height to the handle portion 12 is as follows. Is about 1 m. The pump 46 has a motor output of 3 W, a spray amount of 0.1 L / min, and a spray pressure of 0.1 to 0.15 MPa. The power generation capacity of the solar cell panel is 5.6 W (12 V). The continuous usable time of the simple sprayer 1 is about 2 hours from the fully charged state in cloudy weather, and about 4 hours from the fully charged state in fine weather. Here, an example in which a herbicide is used as the chemical solution M and the mixed solution Y diluted to a dilution ratio of 10/1 is sprayed is shown.

Next, the operation of the simple sprayer 1 configured as described above will be described. The solar battery panel 5 is vertically moved as indicated by an arrow R via support shafts 6 and 6 fixed to support plates 6 and 6 fixed by welding or the like in the upper and lower central portions of the left and right eaves frames 11 and 11 in the cart body 4. It is swingably supported. Therefore, when the diluent W is charged into the diluent tank 14 or when the chemical liquid M is charged into the chemical tank 15, as shown in FIG. And maintenance of each device can be performed easily and efficiently.
On the other hand, during the standby time before the spraying operation, as shown in FIG. Thereby, the solar cell panel 5 can generate a lot of electric power by receiving a large amount of solar energy. The power supply device 61 that receives power from the solar cell panel 5 has a known charge / discharge control function. When the pump 46 is stopped and the storage capacity of the storage battery 65 is not full, the power supply device 61 receives power from the solar cell panel 5. Charging is performed by supplying electric power to the storage battery 65. While the pump 46 is being driven, the electric power from the solar cell panel 5 is supplied to the pump 46.

Thus, before the spraying operation, a plug of a commercial AC power supply (external power supply) is inserted into the outlet 64, and the DC power converted by the AD converter 63 is fully charged in the storage battery 65 by the power supply device 61. . In the spraying operation, the solar battery panel 5 is kept in a horizontal posture at a downward angle α from a direction perpendicular to the heel frame 11. This angle α is an angle at which the solar cell panel 5 of the simple sprayer 1 that has been hand-tilted and tilted forward is in a substantially horizontal posture. However, the posture of the solar cell panel 5 is not limited to the horizontal posture, and may be set to an angle corresponding to the position of the sun. Further, the on-off valve 56 is opened.
Therefore, as shown in FIG. 9, the handle portion 12 of the simple sprayer 1 is held by hand and rolled forward (in the direction of arrow F). Then, the heel frame 11 is tilted forward, and the solar cell panel 5 is in a substantially horizontal posture. Thereby, the solar cell panel 5 receives the solar energy S to the maximum, generates a large amount of electric power, and outputs it to the power supply device 61.
When the operator grips the handle 52, the valve in the handle 48 is opened and the hand switch 53 is turned on. Thereby, the power supply device 61 supplies power to the pump 46 to drive it.

  By driving the pump 46, the dilution liquid W in the dilution liquid tank 14 and the chemical liquid M in the chemical liquid tank 15 are pumped up, mixed in the mixer 28 at a predetermined ratio (dilution liquid W / chemical liquid M = 9/1), and mixed. Liquid Y is used. The mixed liquid Y is discharged from the pump 46 and is sprayed from the spray nozzle 50. When the simple sprayer 1 is tilted forward, the diluent tank 14 is also tilted as shown in FIG. 10, but the bottom bottom surface 19 is disposed at the front of the diluent tank 14, so that the spraying operation is not performed. Even if the diluent tank 14 is tilted, the suction port 25 with the weight is always at the lowest position. Therefore, it can be used for spraying up to the last diluent W.

According to the simplified sprayer 1 described above, since the solar battery panel 5 is provided, the pump 46 can be driven using the solar energy S and sprayed from the spray nozzle 50. Thereby, even when the power charged in the storage battery 65 is consumed by the spraying work and it becomes difficult to continue the work, the spraying work can be continued while using the power from the solar battery panel 5 together. . Alternatively, when the work is not performed, the storage battery 65 can be charged in preparation for the next work.
Since the solar battery panel 5 is supported by the cart body 4 so as to be swingable up and down, the cart body 4 is in an upright posture, an inclined posture at the time of spraying work, a liquid handling operation, and a detaching operation of the spray unit 3. Accordingly, the solar cell panel 5 can be swung up and down to a suitable angle. Thereby, the solar energy S can be used efficiently and various operations can be easily performed.

If it is difficult to run the wheels of the simple sprayer 1, the engagement state between the screw 55 and the receiving member 54 is released, the spray unit 3 is lifted by hand and removed from the cart unit 2, and the solar panel 5 side The connection terminal 67 is removed from the connection terminal 66 on the spray unit 3 side. Thereafter, as shown in FIG. 11, snap rings 68, 68 at both ends of the belt 69 are engaged with the suspension holes 22, 22 of the diluent tank 14. As a result, the belt 69 can be hung on the shoulder, and the spraying operation can be performed by holding the handle 48 of the spray nozzle 50 by hand.
That is, according to the simple sprayer 1, since the spray unit 3 is detachably attached to the cart unit 2, the spray unit 3 can be taken out of the cart unit 2 and used for spraying. Therefore, even if it is difficult or impossible for the cart unit 2 to travel on wheels, it is possible to carry out the spraying operation by carrying only the spraying unit 3 manually.

  By the way, the chemical | medical solution M has been measured using the various measuring cups of about 5 mL-100 mL until now. However, in the case of a drug used at a large dilution ratio (for example, 1000/1) such as an insecticide, if the dilution ratio is wrong, the insecticidal effect is lost because it is too thin, or the human body is adversely affected. Sometimes. In particular, when the dilution factor is large, an extremely small measuring cup has to be used, and it may not be possible to accurately measure. In addition, after the measurement, it was necessary to take care to wash the used measuring cup carefully for safety.

  Therefore, the simple sprayer 1 includes an injector 80 as shown in FIGS. 12 and 13. The injector 80 includes a measuring unit 85 including a measuring cylinder 82 and a measuring piston 83 having an O-ring 84 that slides in the measuring cylinder 82 in a main body casing 81 that is a cylindrical container, and a measuring unit 85. An air vent cylinder 86 having a larger diameter than the measuring cylinder 82 and extending upward from the metering cylinder 82, and an air vent cylinder 86 extending upward from the metering piston 83. And an air bleed portion 89 including an air bleed piston 87 provided with an O-ring 88 that slides on the surface. The main body casing 81 is connected to the connecting tube portion 90 connected to the leading end opening 95 of the measuring cylinder 82, the connecting tube portion 110 connected to the inlet side of the air venting cylinder 86, and the connecting portion connected to the leading end opening 95 of the measuring cylinder 82. And a tube portion 101.

  One end of the connection pipe section 90 is connected to the other end of the suction pipe 91 that is introduced into the chemical liquid M in the chemical liquid tank 15. The suction conduit 91 has a first check valve 92 that allows fluid flow only in the direction toward the measuring cylinder 82 (in the direction of arrow C). The first check valve 92 includes a valve seat 93 disposed upward and a ball valve 94 that opens and closes the valve seat 93 by its own weight and the flow of the chemical M. The other end of the return pipe 96 connected at one end to the air vent cylinder 86 is connected to the connecting pipe 110. The return conduit 96 has a second check valve 97 that allows fluid flow only in the direction toward the chemical liquid tank 15 (in the direction of arrow E). The second check valve 97 is composed of a valve seat 98 disposed upward and a ball valve 99 that opens and closes the valve seat 98 by its own weight and the flow of the chemical M.

  The other end of the injection pipe 105 whose one end is connected to the diluent tank 14 is connected to the connecting pipe portion 101. The injection pipe 105 has a third check valve 100 that allows fluid flow only in the direction (arrow G direction) toward the diluent tank 14. The third check valve 100 includes a valve seat 103 and a valve body 103 that opens and closes the valve seat 103 by the spring force of the coil spring 104. The measuring piston 83 and the air releasing piston 87 are integrally formed as a part of the piston rod 106. The upper end portion of the piston rod 106 is a manual operation portion 107 that is driven up and down by hand. The vertical movement of the piston rod 106 is restricted or released by locking or unlocking by the lock piece 108. The upper surface opening of the air vent cylinder 86 is covered with a cap 109.

The injector 80 is used for sucking the chemical liquid M in the chemical liquid tank 15 and injecting the sucked predetermined amount of the chemical liquid M into the diluent W in the diluent tank 14. In this case, the quantified chemical M is charged into the diluent W in the diluent tank 14 and mixed and used for spraying. The chemical M is not mixed in the mixer 28, so the on-off valve 56 is closed. Keep it.
Therefore, as shown in FIG. 14, when the operator lifts the manual operation unit 107 as indicated by an arrow B, the air release piston 87 slides to the upper end in the air release cylinder 86, and the suction conduit 91. The chemical solution M and air inside are sucked into the metering cylinder 82 and the air vent cylinder 86. At this time, the ball valve 94 of the first check valve 92 opens the valve seat 93, and the ball valve 99 of the second check valve 97 closes the valve seat 98.
Next, as shown in FIG. 15, when the operator pushes down the manual operation unit 107 as indicated by an arrow D, the ball valve 94 of the first check valve 92 closes the valve seat 93 and the second check valve 97 The ball valve 99 opens the valve seat 98. As a result, the chemical solution M and air that have been in the air vent cylinder 86 are returned to the chemical solution tank 15 through the return conduit 96 and the second check valve 97 as indicated by an arrow E.
The raising and lowering operation of the air bleed piston 87 in the air bleed cylinder 86 shown in FIGS. 14 and 15 is repeated as many times as necessary, so that the route on the suction side of the injector 80 (suction line 91, first reverse) Air is removed from the stop valve 92, the connecting pipe line 90, the tip opening 95, and the metering cylinder 82), and only the chemical M is replaced.

  After that, as shown in FIG. 16, the lock piece 108 is unlocked and the manual operation unit 107 is further pushed down, and the measuring piston 83 slides in the measuring cylinder 82 to the lower end of the cylinder. At this time, the first check valve 92 and the second check valve 97 are closed, and the valve seat 102 of the third check valve 100 is open. As a result, the medicinal solution M measured as a metered amount corresponding to the internal volume of the metering cylinder 82 passes through the third check valve 100, the connecting pipe part 101, and the injection pipe line 105 as shown by the arrow G, and the diluted liquid. It is put into the diluent W in the tank 14. In this case, if the amount of the diluent W in the diluent tank 14 is 10 L, the one metered amount by the metering cylinder 82 is, for example, 5 mL. Will be held 10 times. When the target weighing-in operation is finished, the lock piece 108 is returned to keep the manual operation unit 107 in the locked state.

  As described above, according to the injector 80, the air on the suction side is eliminated by the air vent cylinder 86 and the air vent piston 87, and the medicinal solution M is measured by the metering cylinder 82 and the metering piston 83. Therefore, a predetermined amount of the drug solution M can be accurately measured and diluted and mixed with the diluent W, and a mixture Y having an accurate dilution ratio can be obtained. Thereby, even if it is an insecticide made into high dilution factor, it can be used appropriately for spraying. In addition, there is no need to use a small-capacity measuring cup that is easily mis-measured, and it is possible to save the trouble of washing the used cup.

  In the above embodiment, two wheels are illustrated as the wheels 8 of the cart body 4, but one or three or more cart bodies may be used.

DESCRIPTION OF SYMBOLS 1 Simple sprayer 2 Cart unit 3 Spray unit 4 Cart body 5 Solar cell panel 6 Support plate 7 Pivot shaft 8 Wheel 11 竪 Frame 12 Handle part 13 Mounting table 14 Diluent tank 15 Chemical liquid tank 28 Mixer 29 Diluted liquid containing Side pipe 31 Chemical liquid inlet side pipe 32 Liquid outlet side pipe 46 Pump 50 Spray nozzle 54 Receiving member 55 Screw 60 Control device 61 Power supply device 63 AD converter 64 Outlet 65 Storage battery 66 Connection terminal 67 Connection terminal 80 Injector 82 Metering Cylinder 83 Metering piston 85 Metering portion 86 Air venting cylinder 87 Air venting piston 89 Air venting portion 91 Suction conduit 92 First check valve 95 Tip opening 96 Return conduit 97 Second check valve 100 3 Check valve 105 Pipes B, C, D, E, F, G, R for injection Arrow M Chemical solution S Solar energy W Diluent Y Mixed Liquid

Claims (1)

A hand-operated cart body having at least one wheel;
A chemical tank and a diluent tank mounted on the cart body,
A pump for pumping up the chemical in the chemical tank and the diluent in the diluent tank;
A mixer that mixes the chemical solution from the chemical solution tank and the diluent solution from the diluent tank and causes the pump to suck the mixed solution;
A spray nozzle for injecting the liquid mixture discharged from the pump;
A solar panel that converts solar energy into electricity;
A storage battery for storing power from a solar panel or an external power source;
A power supply device for supplying power from a solar panel or storage battery to the pump;
And a syringe for sucking the chemical liquid in the chemical liquid tank and injecting the sucked predetermined amount of chemical liquid into the dilution liquid in the dilution liquid tank,
The injector
A measuring section comprising a measuring cylinder and a measuring piston that slides in the measuring cylinder;
An air bleed cylinder that is larger in diameter than the metering cylinder and extends from the metering cylinder, and an air bleed piston that extends from the metering piston and slides in the air bleed cylinder An air vent comprising:
A suction conduit having a first check valve having one end inserted into the chemical liquid in the chemical tank and the other end connected to the tip opening of the measuring cylinder and allowing fluid flow only in the direction toward the measuring cylinder; ,
A return line having a second check valve having one end connected to the air vent cylinder and the other end connected to the chemical tank and allowing fluid flow only in the direction toward the chemical tank;
An injection line having a third check valve having one end connected to the tip opening of the metering cylinder and the other end connected to the diluent tank and allowing fluid flow only in the direction toward the diluent tank;
A simple sprayer characterized by comprising:

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