TWI487571B - Simple sprayer - Google Patents

Description

Simple sprayer

The present invention relates to a hand-held simple sprayer in which a tank, a pump, a pump drive source, and a spray nozzle are mounted on a transport vehicle body in which the wheels travel.

Conventionally, such a spray machine is known, for example, from Patent Document 1 listed below. The sprayer described in this document is equipped with a spray power machine such as a prime mover and a pump, a spray liquid tank, and a spray nozzle in a mounting portion of a two-wheeled transport vehicle body. In this sprayer, the body of the sprayer is hand-held and the liquid medicine such as the herbicide is spread from the spray nozzle held by the other hand.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2010-100185

As described above, the conventional sprayer is equipped with a prime mover, so there is no need to worry about the consumption of the charge when the battery is used. However, the prime mover is relatively heavy, so it is considered inappropriate for the operation of agricultural land with steep slopes in the mountains.

In view of this, although it is conceivable to use the charging power of the battery as the power source to drive the pump, the charging capacity of the battery is limited, so that it is impossible to perform the long-term spreading operation. Therefore, it is desirable to make the spraying operation in the case of using a battery more continuous. On the other hand, there are places where the wheels of the agricultural fields in Shantian or steep slopes cannot walk.

The present invention has been made in view of the above-mentioned conventional problems, and is intended to provide a simple sprayer that can further continuously perform a spray operation even when a battery for charging electric power is used.

In order to achieve the above object, the simple sprayer of the present invention is a simple sprayer comprising a hand-held transport body having at least one wheel, a chemical tank mounted in the transport body, a diluent tank, and a medicine. a pump for extracting the liquid in the liquid tank and the diluent in the diluent tank, mixing the liquid medicine from the liquid tank with the diluent from the diluent tank, and sucking the pump into the mixer of the mixture, spraying from the mixer A spray nozzle for pumping a mixture of liquids, a solar cell panel that converts solar energy into electricity, a battery that accumulates power from a solar panel or an external power source, and a power source that supplies power from a solar panel or an external power source to the pump. Supply device.

Further, in the above configuration, the transport vehicle unit is configured from the transport vehicle body and the solar battery panel, and the spray unit is configured from the chemical liquid tank, the diluent tank, the pump, the mixer, the spray nozzle, the storage battery, and the power supply device, and the spray unit is The truck unit is detachably mounted.

Further, in each of the above configurations, the solar cell panel is supported by the transport vehicle body so as to be swingable up and down.

Further, in each of the above-described configurations, an injector for sucking a chemical liquid in the chemical solution tank and injecting a predetermined amount of the chemical liquid to be sucked into the dilution liquid tank is provided, and the injection device includes the measuring cylinder and the a measuring unit including a measuring piston that slides in the measuring cylinder, and an exhausting cylinder that is larger than the measuring cylinder and extends from the measuring cylinder and that is formed by the measuring piston and that slides in the exhausting cylinder An exhaust portion formed by a piston for exhaust gas, one end of which is inserted into the chemical liquid in the chemical liquid tank, and the other end of which is connected to the front end of the measuring cylinder and has a first check valve that allows the fluid to flow only toward the measuring cylinder. The suction pipe has one end connected to the exhaust pipe and the other end connected to the chemical liquid tank, and has a return pipe for the second check valve that allows the fluid to flow only in the direction toward the chemical liquid tank, and one end is connected to the measurement The injection line for the third check valve that is open at the front end of the barrel and connected to the diluent tank at the other end and that allows the fluid to flow only in the direction toward the diluent tank.

Further, in each of the above configurations, the chemical liquid tank is attached to the back surface of the diluent tank on the rear side in the direction in which the vehicle body is pulled, and the liquid inlet port formed in the upper portion of the chemical tank is attached to the back surface of the diluent tank. When the rear side is inclined and the vehicle body is pulled, the center axis of the input port of the liquid inlet port is disposed at an angle substantially perpendicular to the vertical direction.

Further, in each of the foregoing configurations, the lowermost bottom portion is formed in the front portion of the bottom surface in the diluent tank, and the hammer suction port is installed at the end of the pipeline which is connected to the suction side of the pump at one end, and the hammer suction port is provided. On the bottom surface of the dilution tank.

A simple sprayer according to the present invention includes a solar cell panel that converts solar energy into electric power, a battery that accumulates electric power from a solar cell panel or an external power source, and supplies electric power from a solar cell panel or an external power source to the pump. Since the power supply device is used, 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 battery is consumed by the spraying operation and it is difficult to continue the work, the electric power from the solar cell panel can be used to make the spraying operation more continuous. Alternatively, in the case where the spraying operation is not performed, the electric power from the solar battery panel can be charged to the battery in preparation for the subsequent work.

Further, since the spray unit is detachably attached to the transport vehicle unit, the spray unit can be taken out from the transport vehicle unit and used in a spray operation. Therefore, even if the travel of the transport vehicle unit is difficult or impossible, the vehicle may be used. Only the spray unit is carried by hand and exerts the effect of spraying.

In addition, the solar battery panel can be supported by the vehicle body so as to be vertically movable, and can be adjusted in accordance with the vertical posture of the transport vehicle body, the tilt posture during the spray operation, the liquid handling, or the loading and unloading operation of the spray unit. The solar cell panel swings up and down to make it a proper angle for receiving sunlight. Thereby, solar energy can be utilized efficiently and various operations can be easily performed.

In addition, an injector having a diluent for injecting a chemical solution in the chemical solution tank and injecting a predetermined amount of the chemical solution into the diluent tank can accurately meter the quantitative liquid and mix it with the diluent to dilute it. , a mixture of correct dilution ratios can be obtained. Thereby, even a pesticide having a high dilution ratio can be suitably used in a spray operation. In addition, it is not necessary to use a small-capacity measuring cup which is easy to cause erroneous measurement, and the trouble of washing the measuring cup after use can be omitted.

In addition, the liquid inlet port formed in the upper portion of the chemical solution tank is disposed obliquely to the rear side of the diluent tank, and the center axis of the inlet port of the liquid inlet port is inclined at an angle of a substantially vertical direction. It is easy to put the liquid medicine from the liquid inlet into the liquid medicine tank when the simple sprayer is erected. Further, in the case of the spreading operation, the chemical liquid does not easily fly out from the liquid inlet even when the lid of the sealing liquid inlet is slack. Thereby, it is possible to prevent the chemical liquid from leaking out during the spreading operation.

In addition, if the simple sprayer is tilted forward during the spraying operation, the dilution tank is also inclined. In this case, the front portion of the dilution tank is always at a low position, so that the lowermost bottom surface is at the lowest position among the entire bottom surface. Here, the hammer suction port is placed on the bottom surface of the dilution tank at the end of the pipe connected to the suction side of the pump at one end, and the hammer suction port moves to the lowest position due to its own weight, so it is always at the lowest position. Exists on the bottom surface. The diluent can be used for spraying without waste until the end.

Embodiments of the present invention will be described based on the drawings. The embodiments described below are merely examples of the invention and are not intended to limit the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an external view of a simple sprayer according to an embodiment of the present invention. Figure 2 is a side cross-sectional view of the diluent tank and the chemical tank of the simple sprayer. Figure 3 is a cross-sectional view of the aforementioned dilution tank. Figure 4 is an external view of the mixer of the aforementioned simple sprayer. Fig. 5 is a schematic overall configuration diagram of the above-described simple sprayer. Fig. 6 is a view showing the configuration of a control system of the above simple sprayer.

In each of the drawings, the simple sprayer 1 of the embodiment is configured by a solar cell panel 5 that converts solar energy S into electric power, and a spray unit 3 that is configured by a spray nozzle 50 or the like.

The spray unit 3 is composed of a chemical solution 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.

The transport body 4 is placed in parallel with the vertical brackets 11 and 11 at the front ends of the rear brackets 9, 9 before the parallel arrangement, and the mounting bases 13 are provided on the front and rear brackets 9, 9. The rear portions of the front and rear brackets 9, 9 are bent downward to form a joint leg portion 9A. Left and right axle bearing portions 10, 10 are suspended below the front and rear brackets 9, 9. The axle support portions 10, 10 are pivotally supported by two wheels 8, 8. A handle portion 12 for pulling is provided on the upper end of the vertical brackets 11, 11. A diluent tank 14 is mounted on the upper surface of the mounting table 13 of the transport body 4. The carrier members 54 and 54 formed in a concave shape are fixed to the lower center portion of the left and right vertical brackets 11 and 11 of the transport body 4 so as to protrude rearward by welding or the like. Further, the load-bearing members 54, 54 which are supported by the transport vehicle body 4 are slidably placed by the screws 55, 55 which are screwed into the female screw holes (not shown) formed on the right and left side faces of the dilution liquid tank 14, The spray unit 3 is detachably mounted on the transport unit 2.

The diluent tank 14 is a rectangular box-shaped container having a liquid supply port 16 thereon, and stores a diluent W (for example, water). A Genna recess 26 is formed on the back surface of the dilution tank 14. The drive portion 40, which will be described in detail later, is housed in the Genna recess 26 of the dilution tank 14. The liquid inlet 16 of the diluent tank 14 is closed by a lid portion 17. The left and right center portions on the front side of the bottom portion in the dilution tank 14 are the lowest bottommost bottom surface 19. Inclined bottom surfaces 20, 20 for collecting liquid on the lowermost bottom surface 19 are formed on the left and right sides of the lowermost bottom surface 19. A liquid discharge port 18 is formed on the side surface near the lowermost bottom surface 19, and the liquid discharge port 18 is normally closed by a lid portion. Ribs 21 and 21 are formed at the upper and lower upper end portions of the dilution tank 14. The ribs 21 and 21 are formed with a hanging hole 22 for fixing a buckle 68 (see FIG. 11) of a belt 69 to be described later.

The chemical solution tank 15 is a rectangular box-shaped container having a liquid supply port 34 at the upper portion, and the chemical solution M (for example, an insecticide) is stored, and in most cases, it is formed in a smaller capacity than the diluent tank 14. The chemical solution tank 15 is attached to the back surface of the casing of the drive unit 40 housed in the Genna recess 26 of the dilution liquid tank 14. The liquid supply port 34 is disposed to be inclined at an angle θ to the rear side of the rear surface 14A of the diluent tank 14 on the rear side in the direction in which the transport body 4 is pulled. This angle θ is an angle at which the simple sprayer 1 is easily placed from the liquid inlet port 34 when the simple sprayer 1 is erected (see FIG. 7), and the simple sprayer 1 is tilted by hand during the spreading operation. The center axis J of the inlet port of the inlet port 34 is an angle substantially in the direction of the lead line K (see Fig. 10). By the angle θ, the chemical liquid M does not easily leak from the liquid inlet port 34 even when the lid portion 35 of the closed liquid inlet port 34 is slack.

The side wall of the diluent tank 14 in the inside of the Hagna recess 26 is provided with a relay pipe portion 23 penetrating therethrough. The pipes 24 and 24 are connected to both ends of the relay pipe portion 23. A hammer suction port 25 that is placed on the lowermost bottom surface 19 of the diluent tank 14 is attached to the front end of the line 24 of one of the tubes. The other end of the line 24 is connected to the diluent inlet side line 29 of the mixer 28 which will be described later. Further, a relay pipe portion 38 is provided through the side wall of the chemical tank 15 and the side wall of the casing of the drive unit 40. Lines 36, 36 are connected to both ends of the relay pipe portion 38. A hammer suction port 37 on the bottom surface of the liquid medicine tank 15 is attached to the front end of one of the pipes 36. The other end of the line 36 is connected to the liquid inlet side line 31 of the mixer 28. One of the lines 36, 36 is provided with an on-off valve 56 that is manually opened and closed, for example.

The mixer 28 is connected to the diluent inlet side line 29 of the diluent W introduced into the diluent tank 14 by the main body casing 30 which is a tubular body, and is branched from the inlet side of the main body casing 30, and is branched and connected to the main body casing. The liquid medicine inlet side line 31 of the chemical liquid M introduced into the chemical solution tank 15 and the liquid discharge side line 32 connected to the outlet side of the main body housing 30 are formed. The liquid outlet side line 32 is connected to the suction side of the pump 46 through the line 45. The diluent inlet side line 29 and the chemical solution inlet side line 31 are formed so as to be separable, and the divided portions are detachably connected by the lid portions 33 and 33. A check valve 42 and an orifice 41 that allow only fluid to the pump 46 to flow are provided in the diluent inlet side line 29. The chemical liquid inlet side line 31 is provided with a check valve 44 that allows only the flow of the fluid to the pump 46, and an orifice 432 orifice 43 having a smaller diameter than the orifice ψ1 of the orifice 41. The aperture ratio (ψ1/ψ2) of the orifice 41 and the orifice 43 differs depending on the type, use, and working state of the chemical solution M, but in the case where the chemical solution M is, for example, a herbicide, the dilution ratio = The aperture ratio is selected in the manner of 9/1 to 50/1. This mixer mixes the chemical solution M from the drug solution tank 15 with the diluent liquid W from the diluent tank 14 at a predetermined ratio and causes the pump 46 to take in the mixture liquid Y.

The discharge side of the pump 46 is connected to the end side of the handle 48 of the dispersing rod through the 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 pivotal portion 51, and a hand switch 53 that detects the swing of the handle 52 to detect the opening of the valve body. The discharge pipe 49 is connected to the front end of the handle 48, and the spray nozzle 50 for spraying the mixed liquid Y mixed by the mixer 28 is provided at the front end of the distribution pipe 49.

The drive unit 40 described above is provided with a control unit 60 in addition to the pump 46. The control device 60 includes a power supply device 61, a toggle switch 62, an AD converter 63, a socket 64, a 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. Further, on the input side of the power supply device 61, the solar battery panel 5, the hand switch 53, the toggle switch 62, the AD converter 63, and the battery 65 are connected, and the output side of the power supply device 61 and the motor and battery 65 of the pump 46 are connected. Continued. The toggle switch 62 interrupts the wiring between the battery 65 and the power supply device 61 to prevent unnecessary discharge from the battery 65 when not in use.

The components of the simple sprayer 1 are respectively an example, the content of the diluent tank 14 is 5 L, the content of the chemical tank 15 is 500 mL, the total weight is 4.4 kg, and the height of the handle portion 12 is 1m degree. Further, 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 solar cell panel has a power generation capacity of 5.6W (12V). The continuous sprayer 1 has a continuous use time of about 2 hours from a fully charged state on a cloudy day and about 4 hours from a fully charged state on a sunny day. Here, an example in which a herbicide M is used as a chemical solution M and a mixture Y diluted to a dilution ratio of 10/1 is sprayed is shown.

Next, the action of the simple sprayer 1 constructed as described above will be described. The solar battery panel 5 is supported by a support plate that is fixed by welding or the like in a lower central portion of the vertical brackets 11 and 11 on the left and right vertical brackets 11 and 11 of the vehicle body 4 through the pivot shaft 7 and the arrow R. 6,6. When the diluent W is supplied to the diluent tank 14 or the chemical solution M is introduced into the chemical tank 15, the front end of the solar cell panel 5 is lifted up as shown in Fig. 7, and the liquid can be easily and efficiently performed. Put into operation or maintenance of each machine.

On the other hand, in the standby time before the spraying operation, as shown in FIG. 8, the solar battery panel 5 may be in a horizontal posture. Thereby, the solar cell panel 5 receives a large amount of solar energy and can generate a large amount of electric power. The power supply device 61 that receives the electric power from the solar battery panel 5 includes a well-known charging and discharging control function. When the pump 46 is stopped and the energization capacity of the battery 65 is not full, the electric power from the solar battery panel 5 is supplied to the battery 65. And charging. The electric power from the solar cell panel 5 is supplied to the pump 46 in the driving of the pump 46.

As described above, before the spraying operation, the plug of the commercial alternating current power source (external power source) is inserted into the socket 64, and the DC power source converted by the AD converter 63 can be fully charged by the power supply device 61 to the battery 65. Thereafter, during the spraying operation, the solar cell panel 5 is horizontally placed at an angle α downward from the direction perpendicular to the vertical supports 11, 11. This angle α is the angle of the solar cell panel 5 of the simple sprayer 1 which is tilted forward and in a substantially horizontal posture. However, the posture of the solar battery panel 5 is not limited to the horizontal posture, and may be set to the corresponding angle of the position of the sun. Further, the opening and closing valve 56 is opened.

Here, as shown in FIG. 9, the handle portion 12 of the simple sprayer 1 is pulled forward (in the direction of the arrow F) by hand. Thereafter, the vertical brackets 11 and 11 are inclined forward, and the solar battery panel 5 is in a substantially horizontal posture. Thereby, the solar cell panel 5 receives the solar energy S to the maximum extent and generates a large amount of electric power, and outputs it to the power supply device 61.

Thereafter, if the operator grips the handle 52, the valve in the handle 48 is opened and the hand switch 53 is opened. Thereby, the power supply device 61 supplies power to the pump 46 and drives it.

The diluent W in the dilution tank 14 and the chemical solution M in the solution tank 15 are extracted by the driving of the pump 46, and are mixed in the mixer 28 at a predetermined ratio (diluent W/chemical solution M=9/1). Make the mixture Y. This mixed solution Y is discharged from the pump 46 and ejected from the spray nozzle 50. Further, when the simple sprayer 1 is inclined forward, the diluent tank 14 is inclined as shown in Fig. 10, but the lowermost bottom surface 19 is disposed in front of the diluent tank 14, so that the dilution tank is even in the spray operation. 14 is inclined, and the hammer suction port 25 is always at the lowest position. Therefore, it can be used for spraying until the last dilution W.

A simple sprayer according to the present invention includes a solar battery panel 5 that converts solar energy into electric power, a battery that accumulates electric power from a solar battery panel or an external power source, and a power pump that supplies solar panel panels or an external power source. Since the power supply device is supplied, the solar energy S can be used to drive the pump 46 to be sprayed from the spray nozzle 50. Thereby, even when the electric power charged in the battery 65 is consumed by the spraying operation and it is difficult to continue the work, the electric power from the solar battery panel 5 can be used to make the spraying operation more continuous. Alternatively, the battery from the solar panel may be charged to the battery 65 in the event that the spraying operation is not performed in preparation for the subsequent operation.

Further, when the wheel of the simple sprayer 1 is difficult to travel, the engagement state between the screw 55 and the load-bearing members 54 and 54 is released, and the spray unit 3 is lifted by hand and removed from the transport unit 2, and the solar battery panel 5 is removed. The side splicing terminal 67 is detached from the splicing terminal 66 on the side of the spray unit 3. Thereafter, as shown in Fig. 11, the lifting holes 22, 22 of the diluent tank 14 fix the buckles 68, 68 at both ends of the belt 69. Thereby, the belt 69 is hung on the shoulder to carry the spraying operation by holding the handle 48 of the spray nozzle 50.

In other words, the spray unit 3 is detachably attached to the transport unit 2 by the simple sprayer 1, so that the spray unit 3 can be taken out from the transport unit 2 and used for the spray operation, so that even the transport unit is used. In the place where the wheel travel of 2 is difficult or impossible, the spray unit 3 can be carried by hand and the spray work can be performed.

The chemical liquid M system has been measured by various measuring cups of about 5 ml to 100 ml. However, in the case of an agent such as an insecticide which is used at a large dilution ratio (for example, 1000/l, etc.), if the dilution ratio is mistaken, it may be too thin to lose the insecticidal effect or be too rich to cause damage to the human body. influences. In particular, in the case where the dilution ratio is large, a very small measuring cup has to be used, and measurement may not be performed accurately. In addition, it is necessary to carefully clean the measuring cup after use after the metering due to safety concerns.

In response to the above problems, the simple sprayer 1 is provided with an injector 80 as shown in Figs. 12 and 13 . The injector 80 is provided with 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 the main body 81 of the cylindrical container. The exhaust pipe 86 having a large diameter from the measuring cylinder 82 and extending upward from the measuring cylinder 82 and the row of the O-ring 88 which is formed to extend upward from the measuring piston 83 and slide in the exhausting cylinder 86 The gas piston 87 constitutes an exhaust portion 89. Further, the main body casing 81 includes a connecting pipe portion 90 connected to the front end opening 95 of the measuring cylinder 82, a connecting pipe portion 110 connected to the inlet side of the exhaust pipe 86, and a front end opening 95 connected to the measuring cylinder 82. The tube portion 101 is connected.

The other end of the suction line 91 in the chemical solution M in the chemical solution tank 15 is connected to the connecting tube portion 90 at the end. The suction duct 91 has a first check valve 92 that allows the fluid to flow only in the direction toward the metering cylinder 82 (the direction of the arrow C in Fig. 14). The first check valve 92 is composed of a valve seat 93 that is disposed such that the valve mounting portion faces upward, and a ball valve 94 that opens and closes the valve seat 93 by the flow of the self-weight and the chemical liquid M. The other end of the return pipe 96 connected to the exhaust pipe 86 is connected to one end of the connecting pipe portion 110. The return pipe 96 is provided with a second check valve 97 that allows the fluid to flow only in the direction toward the chemical tank 15 (in the direction of the arrow E). The second check valve 97 is composed of a valve seat 98 that is disposed upward, and a ball valve 99 that opens and closes the valve seat 98 by the flow of the self-weight and the chemical liquid M.

The connecting pipe 101 is connected to the other end of the injection pipe 105 which is connected to the dilution tank 14 at one end. The injection line 105 has a third check valve 100 that allows fluid to flow only in the direction toward the dilution liquid tank 14 (in the direction of the arrow G). The third check valve 100 is composed of a valve body 102 and a valve body 103 that opens and closes the valve seat 102 by the spring force of the coil spring 104. The above-described measuring piston 83 and the exhausting piston 87 are integrally formed as one of the piston rods 106. The upper end portion of the piston rod 106 is a hand operating portion 107 that is driven by the hand. The piston rod 106 is restricted from moving up or down by locking and unlocking with a locking piece. The upper opening of the exhaust cylinder 86 is closed by the lid portion 109. Further, the valve closing force generated by the coil spring 104 of the third check valve 100 is designed to be higher than the valve closing force generated by the weight of the ball valve 99 in the second check valve 97.

The injector 80 is used to suck the chemical liquid M in the chemical solution tank 15 and to inject the diluted chemical liquid M into the diluent liquid W in the diluent tank 14. In this case, the dosing liquid W is supplied to the diluent W in the dilution tank 14 and the mixture is used for spraying, and the mixing of the chemical solution M in the mixer 28 is not performed, so that the opening and closing valve 56 is closed.

Here, as shown in FIG. 14, when the operator lifts the hand operation unit 107 as indicated by the arrow B, the exhaust piston 87 slides in the exhaust cylinder 86 to the upper end thereof, and the chemical liquid M in the suction line 91 is The air is sucked into the inside of the measuring cylinder 82 and the inside of the exhausting cylinder 86. At this time, the ball valve 94 of the first check valve 92 opens the valve seat 93, and the ball valve 97 of the second check valve 97 closes the valve seat 98.

Next, as shown in Fig. 15, after the operator presses the hand operating portion 107 as indicated by the arrow D, the ball valve 94 of the first check valve 92 closes the valve seat 93, and the ball valve 97 of the second check valve 97 opens the valve seat 98. . Thereby, the chemical liquid M and the air located in the exhaust cylinder 86 are returned to the chemical solution tank 15 via the return line 96 and the second check valve 97 as indicated by the arrow E.

The upper and lower operations of the exhaust piston 87 in the exhaust gas cylinder 86 shown in Figs. 14 and 15 are repeated a plurality of times, and the path from the suction side of the injector 80 (suction line 91, first check valve) 92. The front end opening 95 and the measuring cylinder 82) are excluded from the air and replaced with only the chemical liquid M.

After the operation, as shown in FIG. 16, after the lock piece 108 is unlocked and the hand operation portion 107 is further depressed, the metering piston 83 is slid in the metering cylinder 82 to the lower end of the barrel. 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 opened. Thereby, the chemical liquid M measured as the amount corresponding to the internal volume of the measuring cylinder 82 is shown as an arrow G through the third check valve 100, the connecting pipe portion 101, and the injection pipe 105. Diluent W in the liquid tank 14. In this case, if the amount of the diluent W in the diluent tank 14 is 10 L, and the amount measured by the measuring cylinder 82 is, for example, 5 ml, the metering operation is performed in order to make the 200-fold dilution. 10 times. After the end of the metering operation for the purpose, the operator returns the locking piece 108 to bring the hand operating portion 107 into the locked state.

As described above, when the injector 80 is used, the air in the suction side is removed by the exhaust cylinder 86 and the exhaust piston 87, and the chemical liquid M is metered to the diluent by the measuring cylinder 82 and the measuring piston 83. Since the tank 14 is transported, the chemical solution M of a predetermined amount can be accurately metered and mixed with the diluent W to be diluted, and the mixed solution Y of the correct dilution ratio can be obtained. Thereby, even a pesticide having a high dilution ratio can be suitably used in a spray operation. In addition, it is not necessary to use a small-capacity measuring cup which is easy to cause erroneous measurement, and the trouble of washing the measuring cup after use can be omitted.

Further, in the above-described embodiment, a simple sprayer having two wheels is exemplified as the wheels 8 and 8 for transporting the vehicle body 4. However, a simple sprayer having one or three or more wheels is also included in the present invention.

1. . . Simple sprayer

2. . . Pallet truck unit

3. . . Spray unit

4. . . Transport body

5. . . Solar panel

6. . . Support board

7. . . Pivot shaft

8. . . wheel

11. . . Vertical bracket

12. . . Handle

13. . . Mounting table

14. . . Diluent tank

14A. . . back

15. . . Liquid tank

19. . . Lowermost bottom

25. . . Hammer suction

28. . . mixer

29. . . Diluent into the side line

31. . . Liquid into the side pipeline

32. . . Liquid outlet side line

34. . . Liquid inlet

46. . . Pump

50. . . Spray nozzle

54. . . Bearing member

55. . . Screw

60. . . Control device

61. . . Power supply device

63. . . AD converter

64. . . socket

65. . . Battery

66. . . Connection terminal

67. . . Connection terminal

80. . . Injector

82. . . Measuring cylinder

83. . . Measuring piston

85. . . Metrology department

86. . . Exhaust cylinder

87. . . Exhaust piston

89. . . Exhaust department

91. . . Suction pipe

92. . . First check valve

95. . . Front opening

96. . . Return pipe

97. . . Second check valve

100. . . Third check valve

105. . . Injection line

B, C, D, E, F, G, R. . . arrow

J. . . Casting center axis

K. . . Lead straight line

M. . . Liquid

S. . . Solar energy

W. . . Diluent

Y. . . Mixture

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an external view of a simple sprayer according to an embodiment of the present invention.

Figure 2 is a side cross-sectional view of the diluent tank and the chemical tank of the simple sprayer.

Figure 3 is a cross-sectional view of the aforementioned dilution tank.

Figure 4 is an external view of the mixer of the aforementioned simple sprayer.

Fig. 5 is a schematic overall configuration diagram of the above-described simple sprayer.

Fig. 6 is a view showing the configuration of a control system of the above simple sprayer.

Figure 7 is a side view of the aforementioned simple sprayer.

Fig. 8 is an explanatory view showing a state in which the solar cell panel of the simple sprayer is oriented horizontally.

Fig. 9 is an explanatory view showing a state in which the simple sprayer is manually pulled and dispensed.

Fig. 10 is a side cross-sectional view showing a state in which the diluent tank and the chemical solution tank are inclined.

Fig. 11 is an explanatory view showing a state of use of a state in which a spray unit that is removed from the truck unit is used.

Figure 12 is an external view of the injector of the above simple sprayer.

Fig. 13 is a side sectional structural view showing the injector and its accompanying configuration.

Fig. 14 is an operation explanatory view showing an operation of sucking the chemical liquid and the air into the measuring cylinder and the exhausting cylinder of the injector.

Fig. 15 is an operation explanatory view showing an operation of returning a part of the inhaled medical solution and air to the chemical solution tank.

Fig. 16 is an operation explanatory view showing an operation of sending the chemical liquid measured by the measuring cylinder to the diluent tank.

1. . . Simple sprayer

2. . . Pallet truck unit

3. . . Spray unit

4. . . Transport body

5. . . Solar panel

6. . . Support board

7. . . Pivot shaft

8. . . wheel

9. . . Front and rear bracket

9A. . . Foot

10. . . Axle bearing

11. . . Vertical bracket

12. . . Handle

13. . . Mounting table

14. . . Diluent tank

15. . . Liquid tank

17. . . Cover

18. . . Liquid discharge

twenty one. . . Rib

35. . . Cover

40. . . Drive department

47. . . hose

48. . . handle

49. . . Dispersing tube

50. . . Spray nozzle

52. . . handle

54. . . Bearing member

55. . . Screw

R. . . arrow

Claims (10)

A simple sprayer comprising: a hand-held transport body having at least one wheel, mounted in a chemical tank and a diluent tank for transporting the vehicle body, and taking the liquid medicine and the diluent tank in the liquid tank a diluent pump that mixes the liquid medicine from the liquid tank with the diluent from the diluent tank and sucks the pump into the mixture, sprays a spray nozzle of the mixture discharged from the pump, and emits sunlight a solar cell panel that is converted into electric power, a battery that accumulates power from a solar cell panel or an external power source, supplies power from a solar panel or an external power source to a pump, and supplies the liquid in the liquid tank and An injector for injecting a diluent solution into a diluent solution in a diluent tank, the injector comprising: a metering cylinder composed of a metering cylinder and a metering piston sliding in the metering cylinder, and a larger diameter than the measuring cylinder And an exhaust portion formed by the exhaust cylinder extending from the measuring cylinder and the exhaust piston extending from the measuring piston and sliding in the exhaust cylinder, and one end is put into the chemical liquid in the chemical tank and another a suction pipe having a first check valve that is open to the front end of the measuring cylinder and has a first check valve that allows the fluid to flow only in the direction toward the measuring cylinder. One end is connected to the exhaust gas cylinder and the other end is connected to the chemical liquid tank, and has a return line for the second check valve that allows the fluid to flow only in the direction toward the chemical liquid tank, and one end is connected to the front end of the measuring cylinder and is open. The other end is connected to the diluent tank, and has an injection line for the third check valve that allows the fluid to flow only in the direction toward the diluent tank. A simple sprayer according to the first aspect of the invention, wherein the transport vehicle body and the solar battery panel constitute a transport vehicle unit, and the chemical liquid tank, the diluent tank, the pump, the mixer, the spray nozzle, the battery, and the power supply device A spray unit is formed, and the spray unit is detachably attached to the transport vehicle unit. A simple sprayer according to claim 1, wherein the solar cell panel is supported by the transport body so as to be swingable up and down. The simple sprayer of claim 2, wherein the solar cell panel is supported by the transport body so as to be swingable up and down. The simple sprayer according to any one of claims 1 to 4, wherein the chemical tank is installed on the back surface of the diluent tank on the rear side of the transport body, and the liquid input formed in the upper portion of the liquid tank The port is disposed at an angle to the rear of the back surface of the diluent tank, and the angle is an angle at which the center axis of the input port of the liquid inlet port is substantially vertical when the transport body is pulled and tilted. A simple sprayer according to the first aspect of the patent application, wherein the chemical liquid tank is installed on the back surface of the diluent tank on the rear side of the transport body to be pulled, The liquid inlet port formed in the upper portion of the chemical tank is disposed at an angle to the rear of the back surface of the diluent tank, and the angle is substantially perpendicular to the center axis of the input port of the liquid inlet when the transport body is pulled and tilted. angle. The simple sprayer according to any one of claims 1 to 4, wherein the bottom portion of the bottom surface of the dilution tank is formed at the lowest bottom portion, and the end portion of the pipeline connected to the suction side of the pump is installed at one end. With a hammer suction port, the hammer suction port is placed on the bottom surface of the diluent tank. The simple sprayer of claim 1, wherein the bottom portion of the bottom surface of the diluent tank is formed at a lowermost bottom, and the hammer suction port is installed at a front end of the pipeline connected to the suction side of the pump at one end. The hammer suction port is placed on the bottom surface of the diluent tank. The simple sprayer of claim 5, wherein a lowermost bottom portion is formed in a front portion of the bottom surface of the diluent tank, and a hammer suction port is installed at a front end of the pipeline connected to the suction side of the pump at one end. The hammer suction port is placed on the bottom surface of the diluent tank. The simple sprayer of claim 6, wherein a lowermost bottom portion is formed in a front portion of the bottom surface of the diluent tank, and a hammer suction port is installed at a front end of the pipeline connected to the suction side of the pump at one end. The hammer suction port is placed on the bottom surface of the diluent tank.