JPH0650479U - Atomizer - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a sprayer capable of realizing a uniform spray by stabilizing the pressure in the tank while realizing weight saving, improvement in portability and workability. A sprayer according to the present invention comprises a spray medium containing chamber for containing a spray medium, a pressure accumulating chamber filled with compressed air, and a communication for supplying compressed air in the pressure accumulating chamber to the spray medium containing chamber at a required pressure. Means for supplying compressed air into the pressure accumulating chamber, and a spray nozzle for spraying the spray medium in the pressure tank in a mist state. And,

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sprayer used for spraying liquids such as water and pesticides.

[0002]

[Prior art]

 Conventionally, as this type of outdoor work sprayer, various types such as a manual pressure-accumulation sprayer, a manual pump-driven sprayer, a spray engine-equipped sprayer, and a storage battery-driven sprayer have been known.

Among these, the manual pressure-accumulation type atomizer has a manual type air pump built in the tank, which is operated 100 times or more to increase the pressure in the tank and pump the liquid in the tank to the atomizing nozzle side. It was a method to do. On the other hand, the manual pump-driven sprayer has a built-in hand-operated pressure pump near the discharge port of the tank, and while operating the drive lever of this pressure pump with one hand, grasp the spray nozzle with the other hand and spray. It was a method of doing work.

Further, the drive engine-equipped atomizer includes a drive engine and a pressure feed pump driven by the drive engine, and is configured to feed the liquid in the tank to the spray nozzle side by the pressure feed pump. This drive-engine-equipped atomizer is not suitable for workers to carry, because it carries a heavy load such as a drive engine. Therefore, a working method is usually adopted in which the tank equipped with the drive engine remains installed on the ground and the hose is extended to carry only the spray nozzle to the spraying site. Therefore, the pump pressure is set relatively high, for example, 25 kg / cm ² or more.

The storage battery driven atomizer includes a storage battery and a gear pump that is rotationally driven by the electric power of the storage battery, and is configured to pump the liquid in the tank to the spray nozzle side by the rotational force of the gear pump.

[0006]

[Problems to be solved by the device]

 The above-mentioned various conventional atomizers have the following drawbacks. In other words, the manual pressure-accumulation type atomizer requires a great deal of labor because the built-in pump must be operated 100 times or more before the atomization work. The manual pump-driven sprayer has poor workability because the spraying work must be performed while manually operating the built-in pressure pump, and the pump failure rate is high because an unreasonable load is easily applied to the pump.

[0007] As described above, the drive engine-equipped atomizer is heavy and lacks portability. In addition, the drive engine is expensive, and it has the drawback that it requires skill to use it. In addition, the exhaust gas and noise emitted from the drive engine had the drawback of causing environmental degradation in residential areas and greenhouses.

Although the storage battery driven atomizer is lighter in weight than the drive engine-equipped atomizer, it cannot be denied that it is a heavy product because the storage battery, the gear pump and the drive motor thereof are also incorporated therein. In particular, since the drive part of the gear pump has a built-in DC motor, the DC motor alone has a considerable weight, which is problematic in terms of portability and workability. In addition, the gear pump drive motor described above consumes a large amount of power, and the built-in battery normally lasts only 1.5 to 3.0 hours. Therefore, the operating time for charging time (about 15 hours) is short and work efficiency is poor. Also had.

Therefore, the present applicant has previously applied for a sprayer aiming at solving the above-mentioned conventional defects (Japanese Patent Application No. 4-16400). However, as a result of further study, in the atomizer according to the above-mentioned application, the pressure inside the tank changes depending on the amount of the atomizing medium filled in the tank, so the atomization state of the medium atomized from the atomizing nozzle is changed. Will change. Therefore, for example, when the sprayer was used for spraying pesticides, there was a problem that the spraying of pesticides was uneven and proper work could not be performed. Therefore, the present invention has been made in order to solve the above-mentioned problems, and realizes weight reduction, improvement of portability and workability, and stabilization of pressure in the tank to achieve uniform spraying. The purpose is to provide a sprayer capable of performing.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a spray medium containing chamber for containing a spray medium, a pressure accumulating chamber filled with compressed air, and compressed air in the pressure accumulating chamber at a constant pressure in the atomizing medium containing chamber. It is composed of a pressure tank equipped with a supply means for supplying it, and a compressor driven by a vehicle power supply, and it supplies the pressure supply means for supplying compressed air into the pressure accumulating chamber and a spray medium in the pressure tank in the form of mist And a spray nozzle that does this.

[0011]

[Action]

 In the atomizer according to the present invention having the above-described structure, first, the atomizing medium is put into the atomizing medium enclosing chamber of the pressure tank, and then the inside is sealed. At this time, it is necessary to form a certain amount of air layer above the spray medium enclosure. Next, the pressure supply means (compressor) is connected to the pressure tank, the compressor is driven by using the vehicle power supply, and compressed air is supplied into the pressure accumulating chamber of the pressure tank. When the pressure in the accumulator reaches the required pressure, the compressor drive is stopped and the compressor is disconnected from the pressure tank. The compressed air filled in the pressure accumulating chamber is supplied to the air layer portion in the atomizing medium enclosing chamber through the communicating means to bring the chamber into a constant pressure state. The spraying work is carried out, for example, by carrying the pressure tank on the back and operating the spray nozzle with one hand. When a gate such as an opening / closing cock provided between the pressure tank and the spray nozzle is opened, the spray medium in the spray medium enclosure is pumped to the spray nozzle by the pressure of the compressed air filled in the air layer. Is emitted from. When the spraying work progresses and the amount of spray medium in the spray medium enclosure chamber decreases, the volume of the air layer increases in proportion to this, so the pressure in the spray medium enclosure chamber decreases. When the pressure in the spray medium enclosure chamber falls below a certain value, compressed air is supplied from the pressure accumulator chamber to the spray medium enclosure chamber through the communication means at any time to keep the pressure in the atomization medium enclosure chamber at a substantially constant value. Be drunk

[0012]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the atomizer according to the present embodiment comprises a pressure tank 10, a spray nozzle 20 and an additional component member constituting a main body 1, and a compressor (pressure supply means) detachable from the pressure tank 10. ) 30.

The inside of the pressure tank 10 is vertically divided into two by a partition wall 11. The space formed below the partition wall 11 forms a spray medium enclosing chamber 12 for storing the spray medium, and communicates with an injection port 14 provided in the pressure tank 10 via an injection pipe 13. . On the other hand, the space formed above the partition wall 11 forms a pressure accumulating chamber 15 for filling compressed air. The inlet 14 can be closed by a lid 16.

A regulator 40 is provided on the upper wall of the pressure tank 10 as a means for connecting the spray medium enclosing chamber 12 and the pressure accumulating chamber 15, and the suction port 40 a of the regulator 40 stores the pressure via a connecting pipe 41. It communicates with the chamber 15. The pressure value in the connecting pipe 41 (that is, the pressure value in the pressure accumulating chamber 15) can be confirmed by a pressure gauge 44 attached to the regulator 40. On the other hand, a connecting pipe 42 is led out from the outlet 40b of the regulator 40, and the connecting pipe 42 is connected to a connecting member 43 attached to the lid 16. Therefore, when the lid 16 is fitted in the inlet 14, the outlet 40b of the regulator 40 communicates with the spray medium enclosure 12 of the pressure tank 10. The regulator 40 adjusts the pressure of the compressed air supplied to the suction port 40a to, for example, about 4 to 5 kg / cm ² and sends the compressed air to the spray medium enclosure chamber 12. Therefore, the inside of the spray medium enclosure chamber 12 is always kept at a constant pressure. The regulated pressure value in the regulator 40 can be arbitrarily changed. A coupler 45 is attached to the connection pipe 41 on the pressure accumulating chamber 15 side, and the compressor 30 is connected to the coupler 45 via a pipe 31. The coupler 45 is open when the pipe 31 is connected and is closed when the pipe 31 is removed.

A connection opening 17 for the spray nozzle 20 is provided on the bottom wall of the pressure tank 10, and the spray nozzle 20 is connected to the connection opening 17 via a spray hose 21. The spray nozzle 20 has a large number of pores at its tip, and sprays a spray medium from these pores. Further, an opening / closing cock 18 is provided in the grip portion of the spray nozzle 20, and the spray medium in the spray medium enclosing chamber 12 can be sprayed from the spray nozzle 20 by operating the opening / closing cock 18. As the spray nozzle, various kinds of nozzles that are already known can be used.

The compressor 30 as a pressure supply means is characterized by being driven by a vehicle power source such as an automobile battery. For example, a relatively small pressure of about 9 to 10 kg / cm ^{2 is} applied. You can A schematic configuration of the compressor 30 is shown in FIG. 2, and a piston crank 33 is rotated by a DC motor 32 driven by a DC power source (12V or 24V), and a piston 35 is reciprocated in a cylinder 34. Then, the return movement of the piston 35 sucks air from the valve 36, and then the forward movement of the piston 35 opens the valve 37 to pump compressed air. As the compressor 30, for example, a hand air compressor (trade name) manufactured by Auto Electric Industry Co., Ltd. can be used. The compressor 30 is provided with a pressure gauge for measuring the pressure of air to be pumped.

Next, the operation and action of the above-mentioned sprayer will be described. When the sprayer of the present embodiment is used for spraying pesticide, a fixed amount of pesticide (liquid) is injected into the pressure tank 10 as an atomizing medium. This injection work is performed by removing the lid 16 of the injection port 14 and pouring from the injection port 14. Here, it is more effective to keep the pressure constant until the end if the air layer to which pressure should be applied remains to some extent even after the pesticide is injected in the pressure tank 10. After the pesticide injection work is completed, the injection port 14 is closed by the lid 16. The opening / closing cock 18 is previously closed before pesticide injection.

Next, the tip of the introduction hose 31 extending from the compressor 30 is connected to the coupler 45, and the compressor 30 is operated. Normally, a car is used to move to the farm, so by inserting the compressor power plug into the cigarette lighter part of the car, the car battery can be used as the power source of the compressor 30.

In this way, compressed air is supplied into the pressure tank 10. The supplied compressed air fills both the pressure accumulating chamber 12 and the atomizing medium enclosing chamber 15, but the atomizing medium enclosing chamber 15 side reaches a specified pressure (for example, 4 to 5 kg / cm ² ). The regulator 40 cuts off the supply of compressed air. After that, the supply of compressed air to the pressure accumulating chamber 12 side is continued, and when the pressure inside the pressure accumulating chamber 12 reaches a certain pressure (for example, about 9 kg / cm ² ), the compressor 30 is stopped. For example, about 4 to 5 kg / cm ² is sufficient as the tank pressure necessary for spraying all the pesticide in the pressure tank 10, and the pressure inside the spray medium enclosure chamber 15 is maintained at the same pressure value during that time. For this purpose, it is sufficient if the pressure accumulating chamber 12 has a preliminary pressure of about 9 kg / cm ² . . In order to create such a pressure state, when the tank internal volume is 17,500 cm ³ and the air layer volume is approximately 1/3 of that, the rotation speed of the DC motor 32 is 1,800 rpm and the compressor 30 is The process may be carried out for about 5 minutes for pumping compressed air of 9 cm ³ . Therefore, the spraying work can be repeated extremely smoothly because the pressure tank 10 can be formed again to the specified pressure state while the spraying work is completed once and the rest is made for a short time.

After the inside of the pressure tank 10 is set to a prescribed pressure state, the introduction hose 31 is removed from the coupler 45, the pressure tank 10 is carried on the back, and the pesticide spraying work is started. That is, when the opening / closing cock 18 is opened, the pesticide in the spray medium enclosing chamber 12 of the pressure tank 10 is pressure-fed to the spray nozzle 20 by the pressure of the compressed air layer, and is sprayed from the tip of the nozzle 20. As the volume of the air layer increases in proportion to the decrease in the amount of the pesticide in the spray medium enclosure chamber 12, the pressure in the chamber 12 decreases. Then, the regulator 40 is opened, compressed air is supplied from the pressure accumulating chamber 15 to the spray medium enclosing chamber 12, and the regulator 40 is closed when the pressure in the spray medium enclosing chamber 12 reaches the specified pressure again.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention. For example, the application of the present invention is not limited to spraying agricultural chemicals, but can also be used for watering in home gardening and the like. In other words, it can be used for various operations that require spraying of liquid, and has the characteristic of being highly portable especially when used outdoors. Further, the communication means (regulator) can arbitrarily change the pressure value supplied to the spray medium sealing chamber, and it is preferable to appropriately adjust the supply pressure value according to the type of spray medium. As a result, the most suitable spray state for each spray medium can be formed without replacing the spray nozzle. Further, the compressor constituting the present invention is characterized by being driven by a vehicle power source, but may be driven by a commercial power source as necessary.

[0022]

[Effect of device]

 As described above, according to the present invention, it is possible to reduce the weight by using the compressor driven by the vehicle power supply as the pressure supply means, and to improve the portability and workability. Moreover, the pressure tank has a pressure accumulating chamber, and compressed air is supplied from the pressure accumulating chamber to the atomizing medium enclosing chamber in response to the pressure drop in the atomizing medium enclosing chamber, so that the pressure in the tank is stable and always uniform. It has the effect of being able to achieve various sprays.

[Brief description of drawings]

FIG. 1 is a partially sectional front view showing an embodiment of a sprayer according to the present invention.

FIG. 2 is a sectional front view showing a compressor according to the embodiment.

[Explanation of symbols]

 10 Pressure Tank 11 Partition Wall 12 Spraying Medium Enclosing Chamber 15 Accumulation Chamber 20 Spraying Nozzle 30 Compressor 40 Regulator

Claims (1)

[Scope of utility model registration request] 1. A spray medium enclosing chamber for enclosing a spray medium,
A pressure tank provided with a pressure accumulating chamber filled with compressed air, a communication unit for supplying the compressed air in the pressure accumulating chamber to the atomizing medium sealing chamber at a required pressure, and a compressor driven by a vehicle power supply ,
A sprayer comprising: a pressure supply unit that supplies compressed air into the pressure accumulating chamber; and a spray nozzle that disperses the spray medium in the pressure tank in a mist state.