JPH0614807Y2 - Pressurized air control device for chemical sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a control device which is mounted near a discharge port of a blower of a chemical spraying vehicle and controls the direction of pressurized air.

[Conventional technology]

FIGS. 8 to 10 show a general form of a conventional chemical spraying vehicle, in which a driver's seat 3 is provided on a vehicle body 2 equipped with wheels 1 for traveling,
A chemical liquid tank 4, a power portion 5, a jet 6 and a blower portion 7 are mainly provided.

In the blast head 6, the blast head plate 8 and the vortex shelter plate 9 are provided in parallel with each other, and the air sucked from the outside by the rotation of the blower 10 installed in the blower part 7 is blown inside the fan case 11. After passing, it is guided to the opening edge 12 formed between the blast plate 8 and the vortex plate 9, collides with the blast plate 8 to change its direction, and is arranged as shown in FIG. The direction is corrected by the wind control plate 13, and the air is discharged radially as shown by the arrow in FIG.

The chemical liquid jetted from a plurality of nozzles 14 attached to the jet head 6 is sprayed on the pressurized air.

As shown in FIG. 12, the wind control plate 13 in the above configuration is mounted between the spouting plate 8 and the vortex shelter plate 9 by bolts 15, washers 16, 17 and nuts 18, and the mounting angle is the same as the above. It can be changed by loosening nut 18 and rotating it around bolt 15.

[Problems to be solved by the device]

By the way, since the conventional wind control plate 13 has a constant width as shown in FIG. 13, the opening width W of the opening edge 12 (the distance between the blast plate 8 and the vortex prevention plate 9) W shown in FIG. Different ones must be used depending on the case, and the left and right wind control plates 13a, 13
In the case of a type in which b must be attached and the opening width W can be changed, as shown in FIG. 15, a gap is created between the blast plate 8 and the vortex shelter plate 9, and the wind control plate 13 Because the wind whose direction is controlled by is reduced, when spraying the chemical solution,
Since it is not possible to direct the wind, a situation arises in which the chemical solution cannot be evenly distributed, and it is an object to obtain a wind control plate that can immediately respond to the change in the opening width W as described above.

[Means for Solving the Problems]

The invention will be described using the reference numerals of the drawings corresponding to the embodiments.

In the chemical liquid spraying vehicle as the premise of claim 1, the chemical liquid tank (4) is provided at the opening edge (12) defined by the spray head plate (8) and the vortex preventive plate (9) arranged on the discharge side of the blower (10). ), A nozzle head (6) provided with a plurality of nozzles (14) for discharging the chemical liquid pumped from
The apparatus according to claim 1, further comprising: a wind control plate (13) rotatably supported in the (12) and controlling the direction of the pressurized air generated by the blower (10). The wind plate (13) is composed of a large number of strip-shaped plate bodies (20) arranged in a foldable manner and penetrates through a through hole (22) formed on one side of each plate body (20). The wind control plate (13) is rotatably fastened in the opening edge (12) of the jet nozzle (6) via a fastening tool (29).

The apparatus according to claim 2 can cope with a case where the opening width of the opening edge (12) is movably changed by making the tightening width of the tightening tool (29) variable.

[Action]

In the pressurized air control device of the present invention having the above configuration,
In the invention of claim 1, the wind control plate (15) is formed in a folded shape by connecting a large number of strip-shaped plate bodies (20), and the opening edge (1
It is installed by expanding or contracting according to the opening width of 2).

According to the second aspect of the invention, when the opening edge (12) is movably changed, the fastening width of the fastening tool (29) is made variable.

〔Example〕

Next, the invention will be described with reference to the embodiment shown in FIGS. 1 to 7, but in order to avoid duplication, the above-mentioned FIGS.
Portions common or equivalent to those of the conventional technique described in the drawings are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 shows a mode in which a wind control plate 13 is attached to an opening edge 12 formed between the spray head plate 8 and the vortex shelter plate 9,
As shown in FIG. 2 to FIG. 5, this wind control plate 13 has a large number of strip-shaped plate bodies 20 connected in series and can be folded into a folded book shape. In practice, it is a fragile portion (or thin-walled portion). The coupling part
21 is made of a synthetic resin and has a through hole 22 formed in one side of each plate body 20. As a result of the above configuration, the width on both sides is a as shown in FIG. Also, as shown in FIG. 3, one side can be b and the other side can be a.

The wind control plate 13 having such a shape is attached to the opening edge 12 by preventing the head of the bolt 23 penetrating the through hole 22 through the plain washer 24 and the nut 25 as shown in FIG. It is fastened to the vortex plate 9, and the other end of the bolt 23 is fitted with a nut 26, a spring washer 27,
It is carried out by fastening the spout plate 8 through the nut 28. The type shown in FIG. 6 is the case where the fastening width L of the fastening tool 29 constituted by the bolt 23 or nut 28 is constant.

On the other hand, in FIG. 7, on the side of the blast head plate 8 as a correspondence to the case where the width of the opening edge 12 formed by the blast head plate 8 and the vortex shelter plate 9 is changed in a movable manner. The fastening width L of the fastening tool 29 is made variable by fastening the nut 28 through the collar 31 having the collar portion 30.

[Effect of device]

The device according to claim 1, wherein the width of the wind control plate can be freely changed when the width of the opening edge of the blower outlet is different for one type of the wind control plate, and the shape of the left and right openings is different. The same left and right wind control plates can be used at the discharge port of the air blower, the adhesion between the blow head plate, the vortex prevention plate and the wind control plate is good, the direction of the pressurized air can be completely controlled, and each plate body of the above wind control plate The V-shaped groove formed between them can be effective in imparting the directionality of the wind flow.

The apparatus according to claim 2, wherein the fastening portion on one side of the fastening tool is movably formed to apply to a chemical liquid spraying vehicle of a type that requires changing the opening width of the opening edge. Useful.

[Brief description of drawings]

FIG. 1 is a plan view of a main part of a chemical spraying vehicle equipped with the device of the present invention, and FIGS. 2 to 5 are perspective views of a wind control plate (second
Fig. 3) and a plan view, and a side view. Fig. 6 is a structural diagram of the mounting state, Fig. 7 is a structural diagram of another embodiment, and Figs. 8 to 15 are conventional examples. Shown in FIGS. 8 and 9 are a plan view and a side view of the spraying vehicle, FIG. 10 is a sectional view of an essential part, FIG. 11 is a view showing an attachment mode of a wind control plate, and FIG. 12 is an exploded view thereof. FIG. 13 is an enlarged perspective view of the wind control plate, and FIGS. 14 and 15 are plan views showing two examples of its usage. In the figure, 4 ... chemical tank 6 ... blast head 8 ... blast plate 9 ... vortex plate 10 ... blower 12 ... opening edge 13 ... wind control plate 14 ... nozzle 20 ... plate 22 ... … Through hole 29… It is a fastener.

Claims (2)

[Scope of utility model registration request] 1. A spouting plate (8) disposed on the discharge side of a blower (10)
The chemical solution tank (4) is placed in the opening edge (12) partitioned by the vortex plate (9) and
A nozzle (6) provided with a plurality of nozzles (14) for discharging a chemical liquid that is pressure-fed from the nozzle, and a pressurized air generated by the blower (10) rotatably supported in the opening edge (12). In the chemical spray vehicle equipped with a wind control plate (13) for controlling the direction of
3) A large number of strip-shaped plate bodies (20) are arranged in series so that they can be folded into a folded form, and a through hole formed on one side of each plate body (20)
A windshield plate (13) is rotatably fastened to the inside of the opening edge (12) of the jet nozzle (6) through a fastener (29) penetrating the (22) so as to apply the chemical spraying vehicle. Pneumatic control device. 2. The fastening width of the fastening tool (29) is defined by the opening edge (12).
2. The pressurized air control device for a chemical spraying vehicle according to claim 1, wherein the control device is variable according to the change of.