KR101130490B1 - Sprayer for agricultural purpose - Google Patents

Abstract

The present invention is formed with an accommodation space for accommodating the liquid solution therein, the liquid container 110 is formed with a discharge port for discharging the liquid contained therein to one side; A first connection hose 116 having one end connected to the outlet 114 of the liquid container 110 and the other end connected to the inlet of the pump 130; A second connection hose 134, one end of which is connected to the discharge port of the pump 130 and the other end of which is connected to the spray nozzle means 170; A pump 130 having a suction port to which the first connection hose 116 is connected and a discharge port to which the second connection hose 134 is connected and connected to the driving motor 131 to be driven; A drive motor 131 connected to the pump 130 to drive the pump 130; A spray nozzle means (170) having a nozzle (178) connected to the other end of the second connection hose (134) to spray the pressurized and discharged liquid from the pump (130); A space portion provided between the pump 130 and the nozzle 178 and having an opening having an opening communicating with the flow path of the liquid solution connected to the nozzle from the pump is formed inward to discharge the liquid material discharged from the pump 130. The present invention relates to a pesticide sprayer (100) comprising an air pump means (150) which acts to adjust pressure, which reduces vibration during operation of the pesticide sprayer, reduces power consumption of the battery, and prevents damage to crops. It can work.

Pesticide sprayer, pump, air pump

Description

Pesticide sprayer {SPRAYER FOR AGRICULTURAL PURPOSE}

The present invention relates to a pesticide sprayer, and more particularly, by providing an air pump means between the pump and the nozzle, to reduce the vibration generated when spraying the pesticide spray liquid, and to reduce the power consumption of the battery, towards the crop The present invention relates to a pesticide sprayer capable of spraying pesticides with evenly sprayed particles to prevent damage to crops.

In general, a pesticide sprayer is a device used to spray (chemical, biological) pesticides for the control of diseases, pests, weeds, etc. generated during the growing and storage of crops. Pesticide sprayer is a portable pesticide sprayer which is attached to various agricultural machines or used separately or installs wheels. The portable pesticide sprayer includes a manual pesticide sprayer for transporting and spraying the liquid by a manpower and an automatic pesticide sprayer for transporting and spraying the liquid by a pump coupled with an engine or a motor for burning fuel. A liquid agent is a mixture dilution of pesticide and water, and the concentration is adjusted according to the purpose of use or the type of pesticide.

The manual pesticide sprayer is inexpensive but sprays the liquid by manpower, so the user easily feels fatigue, especially in view of an aging rural reality. Therefore, recently, a liquid container in which a suspender is installed to be portable, a motor installed at a lower part of the liquid container and connected to an engine or a battery operated by burning fuel, and a pump coupled to the engine or the motor to suck in the liquid Automated pesticide spraying machines are often used.

1 is a perspective view showing a portable pesticide sprayer according to the prior art, Figure 2 is a cross-sectional view of the portable pesticide sprayer shown in FIG.

The portable pesticide sprayer according to the prior art is a liquid container (2) is formed in a predetermined shape so that the liquid is stored therein, as shown in Figure 1 and 2, and the upper frame installed on the upper of the liquid container (2) (10), the lower frame 30 is installed in the lower portion of the liquid container (2), the bottom of the lower frame 30 and the liquid penetrating through the liquid container (2) is installed inside the liquid container (2) A discharge pipe 32 in which a passage is formed to discharge the liquid material, and electrically connected to the battery 5 installed in the discharge pipe 32 and mounted in the battery case 4 to discharge the liquid inside the liquid container 2. A motor pump 7 for sucking and feeding pressure, an adapter 34 installed through the side wall of the lower frame 30 and connected to the motor pump 7, and a handle 42 for the user to conveniently spray the liquid. ) And the injection table 40 in which the injection nozzle 44 is formed, and the liquid agent pumped from the motor pump 7 are A connecting pipe 36 for connecting the adapter 34 and the jetting rod 40 to be supplied to the station 40, and the handle 42 of the jetting rod 40 is installed on the battery 5 and the motor pump. It consists of a switch 9 which electrically connects or disconnects 7 to start or stop the motor pump 7.

The upper mold 10 and the lower mold 30 are each provided with a suspender ring so that the user can carry it on his back and combine the suspenders 54. In addition, the upper frame 10 and the lower frame 30 to form a clip 56 to hold the injection table 40.

1 and 2, the upper mold 10 is formed to protrude an injection hole 12 into which the liquid is injected into the liquid container 2, and connects the batteries 5 in series or in parallel. It consists of a battery chamber 14 in which the battery case 4 is installed. The battery case 4 installed in the battery chamber 14 is formed so that one or more batteries 5 may be mounted. On the outer circumferential surface of the injection hole 12, a male screw 13 is formed and a stopper 20 having a female screw 23 is formed to correspond thereto. The stopper 20 is formed with a handle 22 so that the user can easily open and close by hand. The battery case 4 installed in the battery chamber 14 is electrically connected by the motor pump 7, the switch 42, and the electric wire 6.

Pesticide sprayer according to the prior art, there was a problem that the structure is not simple, spraying at a constant pressure because the pesticide in the liquid container is pressurized by the motor pump 7 and sprayed through the nozzle during spraying (pesticide) operation In particular, when using the swash plate piston pump as the motor pump (7) this discontinuity can be increased even more. Therefore, the vibration of the pesticide sprayer is greatly generated during the spraying process, which may cause separation or breakdown of the components of the pesticide sprayer, and increase the fatigue of the user, and increase the power consumption of the battery as well as uneven injection particles. There was a problem in that the crops are damaged.

An object of the present invention has been proposed to solve the above problems, having an air pump means between the pump and the nozzle, to reduce the vibration during operation of the pesticide sprayer, to reduce the power consumption of the battery, towards the crop While spraying pesticides with evenly sprayed particles to prevent damage to the crop, the structure is also provided to provide a simple pesticide sprayer.

In order to achieve the above object, the present invention includes a liquid passage formed in the receiving space for accommodating the liquid solution therein, the discharge port for discharging the liquid contained therein to one side; A first connection hose having one end connected to the outlet of the liquid container and the other end connected to the inlet of the pump; A second connection hose having one end connected to the discharge port of the pump and the other end connected to the spray nozzle means; A pump having a suction port connected to the first connection hose and a discharge port connected to the second connection hose, the pump being connected to a driving motor and driven; A drive motor connected to the pump to drive the pump; Spray nozzle means having a nozzle connected to the other end of the second connection hose and sprayed with the liquid discharged from the pump; The air portion provided between the pump and the nozzle, the space portion containing the air having an opening communicating with the flow path of the liquid from the pump to the nozzle is formed inward, and serves to adjust the pressure of the liquid discharged from the pump It provides a pesticide sprayer comprising a pump means.

In another aspect, the present invention provides the pesticide sprayer is provided with a space portion inwardly the air pump means is formed so that the opening communicating with the flow path of the liquid downward.

In addition, the present invention is a lower plate of the liquid container in the form of a hollow plate bent in the 'b' consisting of a vertical portion and a horizontal portion and the back portion communicating with the liquid container, a plurality of suspenders provided in the vertical portion, and the drive Further comprising a battery electrically connected to the motor; The pump, the driving motor, and the battery are fixed to the horizontal portion of the backrest to be located between the liquid container and the horizontal portion of the backrest, the air pump means provides a pesticide sprayer is fixed to the opening downward in the vertical portion.

In addition, the present invention is provided with a branch pipe branched in three directions in the second connection hose, the air pump means provides a pesticide sprayer is connected to the branch of the branch pipe not connected to the second connection hose.

In addition, the present invention provides a pesticide sprayer having a diameter of the space portion formed in the air pump means is in the range of 25mm to 35mm, the length is 115mm to 125mm.

In addition, the present invention provides a pesticide sprayer further comprises at least one support beam spaced apart from the vertical portion and one side is connected to the lower portion of the liquid container and the other side is connected to the horizontal portion.

 According to the pesticide sprayer 100 according to the present invention, the pesticide sprayer 100 is provided with an air pump means 150 having a space S communicating with the liquid flow path between the pump 130 and the nozzle 178. Vibration generated during operation is significantly reduced, thus preventing failure due to vibration, which can prolong the service life, reduce fatigue of the user due to vibration, reduce battery power consumption, and It is possible to spray the liquid with evenly sprayed particles to prevent damage to the crops by the liquid to be sprayed, while the structure is simple.

Hereinafter, with reference to the accompanying drawings will be described in detail a pesticide sprayer according to the present invention. In the detailed description, the contents described in the prior art are omitted.

Figure 3 is a perspective view schematically showing a pesticide sprayer according to the present invention, Figure 4 is a block diagram showing a pesticide sprayer according to the present invention, Figure 5 is an example of the pressure change when using the pesticide sprayer according to the present invention Figure 6 is a graph showing a comparative comparison, Figure 6 shows an enlarged space portion of the air pump means according to the invention, Figure 7 schematically shows an example of the installation position of the air pump means in the pesticide sprayer according to the present invention Partial perspective view, Figure 8 is an enlarged partial cross-sectional view of the connection structure of the air pump means.

As shown in FIG. 3, the pesticide sprayer 100 according to the present invention includes a hollow liquid container 110, a pump 130, a drive motor 131, and a nozzle spraying unit 170 in which a liquid solution is accommodated. Is done.

The liquid container 110 is a hollow body is formed a space for receiving the liquid therein, the discharge port 114 is formed to discharge the liquid to one side, the inlet for injecting the liquid into the liquid container 110 (not shown) Not formed). The liquid container 110 may be made of synthetic resin. In FIG. 3, reference numeral 112 denotes a cover 112 that opens and closes the inlet formed in the liquid container 110, and the cover 112 generally opens and closes the inlet in a screw fastened form. The outlet 114 is formed in the lower portion, the inlet may be formed in the upper or lateral direction.

As the pump 130 operates, a suction port (not shown) through which fluid is sucked and a discharge port (not shown) through which the sucked fluid is discharged are formed. As the pump 130, a swash plate piston pump, a gear pump, a rotary piston pump, etc. may be used, and a detailed description thereof will be omitted.

The pump 130 is connected to the liquid container 110 by a first connection hose 116. One end of the first connection hose 116 is connected to the outlet 114 of the liquid container 110 and the other end is connected to the inlet of the pump 130.

The pump 130 is connected to the drive motor 131 is driven by the drive motor 131. The drive motor 131 is electrically connected to a power source such as a battery to receive power. A switch is connected between the drive motor 131 and the battery so that the user controls the driving of the pump 130 by connecting or disconnecting the drive motor 131 and the battery by operating the switch.

The second connecting hose 134 is connected to the pump 130. One end of the second connection hose 134 is connected to the discharge port of the pump 130 and the other end is connected to the spray nozzle means 170 having a nozzle 178 to which the liquid is sprayed.

The spray nozzle means 170 is a hollow handle portion 172, the opening and closing valve 174 provided to one side of the handle portion 172, the nozzle 178 is sprayed with a liquid agent, and the handle portion 172 ) And a nozzle tube 176 provided between the nozzle 178. The nozzle tube 176 may be formed of a hollow metal tube or a synthetic resin tube, and preferably made of a solid material that is not easily bent by external force in order to facilitate spraying. The on-off valve 174 is preferably installed adjacent to the handle portion 172 to be easily opened and closed during the spraying operation. In addition, a switch for electrically disconnecting and disconnecting the battery and the driving motor 131 may be installed adjacent to the handle part 172. The other end of the second connection hose 134 may be connected to the handle portion 172 as shown in FIG.

The pesticide sprayer 100 according to the present invention includes an air pump means 150 provided between the pump 130 and the nozzle 178 as shown in FIG. As shown in FIGS. 3, 6, and 8, the air pump unit 150 has a space S having an opening communicating with a flow path of a liquid connected from the pump 130 to the nozzle 178. Is formed. Air is accommodated in the space S. The flow path means a passage through which the liquid flows from the pump 130 to the nozzle 178, and the flow path is formed by the second connection hose 134, the handle 172, the nozzle pipe 176. do.

As shown in FIGS. 3, 7 and 8, the air pump means 150 is provided with an opening in which the air pump means 150 communicates with the flow path of the liquid downward. It is preferable to install so that (S) may be located. The space (S) is in a closed state except for the opening communicating with the flow path of the liquid, so that the air contained in the space (S) does not flow out except for the opening. The air pump means 150 may be made of synthetic resin and the like. It is possible to inject not only air but also a compressible gas into the space S. Downward in the above means the direction in which gravity acts in the operating pesticide sprayer 100.

As shown in FIG. 3, the pesticide sprayer 100 according to the present invention has a hollow bent in a 'b' consisting of a vertical portion 118-1 and a horizontal portion 118-2 to the lower portion of the liquid container 110. The vertical portion 118-1 in the shape of a plate further includes a backrest 118 in communication with the liquid container 110. By using the backrest 118 as a hollow body in communication with the liquid container 110, more liquids can be accommodated, but the backrest 118 can also be made of a solid body. The horizontal portion 118-2 allows the liquid container 110 to extend in a protruding direction. By providing a plurality of suspenders 119 in the vertical portion 118-1, it can be easily carried.

The pump 130 and the driving motor 131 are fixedly installed on the horizontal portion 118-2 of the backrest 118 so as to be located between the liquid container 110 and the horizontal portion 118-2 of the backrest 118. 3, the battery 120 electrically connected to the driving motor 131 may be fixedly installed on the horizontal portion 118-2 in parallel with the driving motor 131. At this time, the air pump means 150 may be fixedly installed so that the opening is downward in the vertical portion (118-1) as shown in FIG. In FIG. 7, reference numeral 132 shows a fixing clip for fixing the air pump means 150 to the vertical portion 118-1.

Pesticide sprayer 100 according to the invention is spaced apart from the vertical portion 118-1, one side is connected to the lower portion of the liquid container 110 and the other side is connected to the horizontal portion 118-2 one or more supports It may further include a beam 180. The support beam 180 may be made of metal or synthetic resin, and is connected to the liquid container 110 and the horizontal portion 118-2 to improve rigidity. The support beam 180 may be a solid rod or a hollow pipe.

As shown in FIGS. 3, 4, 6, 7 and 8, the air pump unit 150 is provided with a branch pipe 160 branched in three directions in the second connection hose 134. It is possible to connect to the two connecting hoses (134). At this time, the air pump means 150 is connected to the branch of the branch pipe 160 that is not connected to the second connection hose 134. 3, 4, 7 and 8, the reference numeral 152 shows a branch hose connecting the branch pipe 160 and the air pump means 150, the air pump means 150 is a direct branch pipe ( Of course, it can be configured to be connected to 160).

The first connection hose 116, the second connection hose 134 and the branch hose 152 may be made of a flexible material, the first connection hose 116 and the branch hose 152 is fixed in shape. It can also be made of a material. In FIG. 3, reference numeral 117 denotes a hose support plate for fixing and supporting the second connection hose 134.

When the switch provided between the battery 120 and the driving motor 131 is in an 'on' state, the pump 130 is operated while the driving motor 131 is driven to operate the liquid contained in the liquid container 110. Is flowed through the first connection hose 116, the pump 130, the second connection hose 134, the spray nozzle means 170 is sprayed through the nozzle 178. At this time, in the case of using the pump 130 as a swash plate piston pump, the high pressure is applied to the flow path while the pump 130 discharges the liquid to the flow path, as shown by the dashed-dotted line in FIG. 5. The low pressure section DP where the low pressure acts between the pressurizing section AP and the discharge time is repeated. Therefore, the liquid sprayed through the nozzle 178 is not sprayed regularly, periodically sprayed at high pressure and low pressure to generate vibration, the crop is damaged by the sprayed liquid, and the vibration is transmitted to the user to feel fatigue Easily felt, a problem that the consumption of the battery 120 also increases. In the above, the high pressure and the low pressure are relative pressures generated by the operation of the pump 130.

The pesticide sprayer 100 according to the present invention includes an air pump unit 150 connected to the flow path, so that the pump 130 discharges the liquid, as shown in FIG. The air contained in the space S is compressed to reduce the volume of the space S, and the compressed air is expanded in the low pressure section DP to repeat the process of recovering the volume of the space S. As shown by the solid line in FIG. 5, the pressure difference between the pressure section AP and the low pressure section DP is reduced, thereby significantly reducing vibration. When the diameter of the space S formed in the air pump means 150 is in the range of 25 mm to 35 mm and the length is in the range of 115 mm to 125 mm, as shown in FIG. 6, the battery ( The lifetime of 120) also increased by 25%.

Under the same conditions, the life of the battery 120 was 4 hours when the air pump means 150 was not provided, but the life of the battery 120 was provided when the air pump means 150 was provided. Extended to 5 hours. Of course, the amount of liquid sprayed through the nozzle 178 also increased by extending the life of the battery 120.

Although the exemplary embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to such specific embodiments, and the scope obvious to those skilled in the art to which the present invention pertains is described within the claims of the present invention. It should be interpreted as belonging to a category.

1 is a perspective view showing a portable pesticide sprayer according to the prior art.

2 is a cross-sectional view of the portable pesticide sprayer shown in FIG.

Figure 3 is a perspective view schematically showing a pesticide sprayer according to the present invention.

Figure 4 is a block diagram showing a pesticide sprayer according to the present invention.

Figure 5 is a graph schematically showing an example of the pressure change when using the pesticide sprayer according to the present invention.

Figure 6 shows an enlarged view of the air pump means according to the present invention.

7 is a partial perspective view schematically showing an example of the installation position of the air pump means in the pesticide sprayer according to the present invention.

8 is an enlarged partial cross-sectional view of the connection structure of the air pump means.

** Explanation of symbols for main parts of the drawing **

100: pesticide sprayer 110: liquid container

112: stopper 114: outlet

116: first connection hose 117: support member

118: backrest 119: suspenders

120: battery 130: pump

131: drive motor 132: fixing means

134: second connection hose 150: air pump means

152: third connection hose 160: branch pipe 1

170: spray nozzle means 172: handle portion

174: on-off valve 176: nozzle tube

178: nozzle

Claims (6)

A liquid container 110 having an accommodation space for accommodating a liquid liquid therein and having an outlet 114 for discharging the liquid contained therein to one side; A first connection hose 116 having one end connected to the outlet 114 of the liquid container 110 and the other end connected to the inlet of the pump 130; A second connection hose 134, one end of which is connected to the discharge port of the pump 130 and the other end of which is connected to the spray nozzle means 170; A pump 130 having a suction port to which the first connection hose 116 is connected and a discharge port to which the second connection hose 134 is connected and connected to the driving motor 131 to be driven; A drive motor 131 connected to the pump 130 to drive the pump 130; A spray nozzle means (170) having a nozzle (178) connected to the other end of the second connection hose (134) to spray the pressurized and discharged liquid from the pump (130); The space S provided between the pump 130 and the nozzle 178 and having an opening communicating with the flow path of the liquid agent connected from the pump 130 to the nozzle 178 is formed therein. And an air pump means (150) which acts to adjust the pressure of the liquid discharged from the pump (130); The air pump means 150 having the space portion S formed therein is characterized in that the pesticide sprayer 100, characterized in that the opening is communicated to the flow path of the liquid downward. delete The vertical portion 118-1 of claim 1, wherein the lower portion of the liquid container 110 is formed in a hollow plate bent at a 'b' formed of a vertical portion 118-1 and a horizontal portion 118-2. The backrest 118 is in communication with the liquid container 110, a plurality of suspenders 119 provided in the vertical portion 118-1, and the battery 120 electrically connected to the drive motor 131 Further includes; The pump 130, the driving motor 131, and the battery 120 may be positioned between the liquid container 110 and the horizontal portion 118-2 of the backrest 118. It is fixed to 2), the air pump means 150 is a pesticide sprayer 100, characterized in that the opening is fixed to the vertical portion 118-1 so that the opening is downward. The branch pipe 160 branched in three directions is installed in the second connection hose 134, and the air pump means 150 is not connected to the second connection hose 134. Pesticide sprayer 100, characterized in that connected to the branch of 160. The pesticide sprayer (100) according to claim 1, wherein the diameter of the space (S) formed in the air pump means (150) is in the range of 25 mm to 35 mm, and the length is in the range of 115 mm to 125 mm. According to claim 3, At least one support beam 180 is spaced apart from the vertical portion 118-1, one side is connected to the lower portion of the liquid container 110 and the other side is connected to the horizontal portion (118-2) Pesticide sprayer 100, characterized in that it further comprises.

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