JPS594775Y2 - Anti-fog device for speed sprayer - Google Patents

Description

[Detailed description of the invention] The speed sprayer, which has a chemical tank and a power sprayer mounted on a movable trolley, significantly increases the efficiency of spraying chemical solutions for controlling pests and diseases in orchards, etc. The invention relates to a fog prevention device for protecting workers from the chemical sprayed from the chemical spray fan in such speed sprayers.

In other words, many chemicals used to control pests and diseases are dangerous if people come into contact with the skin or inhale them. It is an object of the present invention to provide a novel anti-fog device which provides protection from the hazards of fog.

Regarding the illustrated embodiment, the configuration of the fog prevention device in the speed sprayer according to this invention will be explained. As shown in FIGS.
Above, there is a chemical tank 4, a pump 6 driven by an engine 5, and a wind tunnel 8a driven by another engine 7.
The fan 8 in the engine, including both the engines 5 and 7,
The chemical tank 4 and the pump 6 are connected by a connecting pipe 9, and an appropriate number of connecting pipes are connected between the pump 6 and the fan 8, each having a cock 10 at the base end and a nozzle at the tip. 11, the speed sprayer is configured to inject and supply the chemical liquid in the chemical liquid tank 4 to the fan 8 by the operation of the pump 16, and to spray the chemical liquid in a spray form by the action of the fan 8. In this speed sprayer, which is capable of being self-propelled by installing a passenger seat 12 on top of the vehicle and rotating the wheels 1 and 2 by the engine 5, this invention is as follows. It has been implemented.

That is, the control section including the passenger seat 12 described above is covered by a dome 13 installed on the vehicle body 3 as shown in the figure, and the entirety is made of a rigid material such as a plastic plate or a rigid material. A flexible material such as a plastic film or canvas may be covered with a suitable bone frame cut out from the material, or it may be formed with at least the upper half being flexible or movable so that it can be fixed in a fixed manner in consideration of workability. The dome 13 is formed with a wide area air inlet 14 at the front of the passenger seat 12, that is, at a position corresponding to the front of the lower body of the worker sitting on the seat 12, and at the upper part, that is, at the front of the lower body of the worker sitting on the seat 12. A plurality of air exhaust ports 15 are formed at positions corresponding to the outer side of the head of the worker.

The air intake port 14 is provided with an inner and outer bone frame 16a.
, 16b and a wide-area porous filter body 16C held between them.
6, an air filter 16 is installed, in which at least one of the bone frames 16a or 16b is removable, and the filter main body 16C is removable for cleaning or replacement.

In addition, the air exhaust ports 15 are provided at the front, rear, and both sides (the exhaust ports 15 on both sides are not shown), and the air exhaust ports 15 are provided at the front and rear, and on both sides. and an opening in front of the viewing window for viewing both sides.

When the air outlet 15 is provided in front of the viewing window, at least one air outlet 15 is provided at a position corresponding to the front of the operator's head.

Further, a ventilation fan 17 is provided which ventilates the inside of the dome 13 by taking in air from the air intake port 14 and discharging air from the air outlet 15.

The ventilation fan 17 may be either an intake fan or an exhaust fan, and may be installed either inside or outside the dome 13, but in the case shown, the air filter is installed at the air intake port 14. Behind 16, that is, inside Dome 13,
The attached suction fan 17 constitutes the ventilation fan.

In FIG. 1, reference numeral 18 indicates a connecting pipe for returning surplus water from the pump 6 to the chemical liquid tank 4, and 19 indicates a pressure regulating valve inserted into the connecting pipe 18 for setting the chemical liquid injection pressure.

As described above, during the chemical spraying operation using the speed sprayer shown in the figure, fresh air is constantly sucked into the dome 13 through the air filter 16 by the air suction action of the suction fan 17, and the dome The sieved air inside the dome 13 is constantly discharged to the outside from the air outlet 15, and the air inside the dome 13 is constantly replaced.The air filtered by the air filter 16 and sucked into the dome 13 is Since the chemical mist sprayed by the fan 8 is separated and removed, there is no room for the worker to be exposed to or inhale the chemical mist, and even so, the worker may feel breathless. It will also disappear.

As described above, the fog prevention device for the speed sprayer of this invention covers the control section with the dome 13 formed with the air intake port 14 and the air discharge port 15, and provides the air filter 16 in the air intake port 14. A ventilation fan 17 is installed to ventilate the inside of the dome 13 by injecting air through the air intake port 14 and discharging air through the air outlet 15, thereby protecting workers from the direct action of the chemical mist. The inside of the dome that covers and protects is constantly filled with fresh air from which chemical mist has been separated and removed by an air filter, so that workers do not feel stuffy.
This allows workers to work safely while being protected from the danger of being exposed to or inhaling chemical mist.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of an example of a speed sprayer equipped with an embodiment of this invention, and FIG. 2 is a schematic side view, partially in longitudinal section, of the same example of the speed sprayer. 3...Vehicle body, 12...Passenger seat, 13
...Dome, 14...Air intake port, 1
5... Air outlet, 16... Air filter, 17... Suction fan (ventilation fan).

Claims (1)

[Scope of utility model registration request] 1. The control section is covered by a dome formed with an air intake port and an air exhaust port, an air filter is provided in the air intake port, and air is introduced from the air intake port and air is discharged from the air exit port. A fog prevention device for a speed sprayer that is equipped with a ventilation fan to ventilate the interior. 2. The fog prevention device for a speed sprayer according to claim 1, which is a registered utility model, wherein the ventilation fan is a suction fan attached to the air intake port. 3. The fog prevention device for a speed sprayer according to claim 1 or 2, wherein the air outlet is configured as an opening in front of a viewing window.