JPH0515976Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention partially overlaps the upper wall surface and the lower wall surface of the exhaust port, and makes the bent pieces at each end face each other to prevent spraying. This invention relates to a bonnet for a chemical dispersion vehicle that prevents equipment from being corroded by preventing dripping of chemical solution from entering the engine compartment, and also allows hot air to be smoothly discharged from the engine compartment.

[Conventional technology]

For the bonnets of chemical spray vehicles widely used for spraying chemicals on orchards, afforestation areas, etc.
As shown in FIGS. 5 and 6, a plurality of ventilation holes 2 are bored in parallel on the side of a plate-like body 1 having a substantially inverted U-shaped cross section, and a net 3 is stretched on the back side of these ventilation holes 2. () As shown in Fig. 7, a large number of air exhaust ports 6 are arranged in parallel and perforated on the side of a plate-like body 5 of the same form as in (), and () as shown in Figs. 8 and 9. As shown in (), a part of the side surface of the plate-like body 8 having the same form as in () is raised 9, and an air exhaust port 10 is formed at the end thereof.
Some are known to have holes in them, allowing the hot air generated by the engine to be discharged to the outside.

[The problem that the idea attempts to solve]

Among the cases described in the conventional technology, in the case (), when the opening area of the air outlet 2 bored in the plate-shaped body 1 is excessive, the strength of the bonnet itself decreases, so measures are taken to ensure this strength. If you bend the end of the exhaust port 2 and attach a reinforcing material here,
Although the strength could be avoided, it became difficult to install the net.
Moreover, since the exhaust port 2 is only covered with a screen 3, there is a fear that drips of the sprayed chemical solution may enter the engine compartment and corrode the equipment. In the case of (), it takes unnecessary effort and time to drill a large number of exhaust ports 6 in the plate-shaped body 5, and it is accompanied by a sense of complication. There is a strong possibility that it will infiltrate into the room. In the case of (), compared to the cases of () and () above, there is less infiltration of the dripping of the chemical solution into the engine compartment from above the plate-like body 8 due to the raised portion 9, but the plate-like body The drip of the chemical solution attached to 8 is at the exhaust port 1.
0 into the engine compartment, and for this reason, ()
As in case (), there was a problem in that there was a concern that the equipment in the engine compartment would be corroded.

This invention was devised in view of the problems of the conventional technology, and its purpose is to prevent drips of chemical liquid sprayed from the nozzle from entering the engine compartment, thereby preventing corrosion of equipment. It is an object of the present invention to provide a bonnet for a chemical spraying vehicle that can prevent hot air from entering the engine compartment and smoothly exhaust hot air from the engine compartment.

[Means to solve the problem]

In order to achieve the above object, the bonnet of the chemical spraying vehicle in this invention is designed such that the bonnet of the chemical dispersing vehicle is mounted on the machine frame with a chemical tank, a nozzle, an engine covered in the bonnet, etc. The upper wall surface and the lower wall surface of the air exhaust port are partially overlapped, and the bent pieces at the ends of the upper wall surface and the lower wall surface are opposed to each other.

The upper wall surface and the lower wall surface are opposed to each other extending downward from the top surface of the bonnet.

[Effect]

In this invention, the droplets of the chemical solution sprayed from the nozzle adhere to and are stopped by the bent piece on the lower wall surface, preventing them from entering the engine compartment through the air outlet, and extending the air outlet to the bottom of the bonnet.・When forming, the drips attached and stopped by the bent pieces flow downward along the lower wall surface, preventing them from entering the engine compartment, and the hot air generated by the engine passing through the exhaust port. When this occurs, the flow direction is diverted downward by the bent piece on the upper wall surface, and the flow direction is diverted downward by the bent piece on the upper wall surface, and the drip that is about to enter the engine compartment through the exhaust port is diverted from the lower wall surface. By pressing, it is possible to prevent drips from entering the engine compartment and to smoothly discharge hot air.

By drilling the exhaust port from the top to the bottom of the bonnet, drips of the chemical solution can be guided and dropped below the bonnet, thereby preventing it from entering the engine compartment.

〔Example〕

Examples will be described with reference to the drawings.

In Figures 1 and 2, there is a chemical tank in front of a machine frame 21 that rotatably supports wheels W ₁ and W _{2 at the front and rear (in Figures 1 and 2} , the left side is the front and the right side is the rear), respectively. T, an engine E is housed inside a bonnet B having a substantially inverted U-shaped cross section, which is pivotally connected to the rear end of this chemical tank T with a hinge a, and a large number of nozzles 22 are installed behind the engine E along the circumferential direction. are arranged in parallel, and from each of these nozzles 22, a blower 23 is supplied from the chemical tank T and driven by the engine E.
The mixed and pressurized chemical liquid can be sprayed out in a mist form using pressurized air from the machine. However, the machine frame 21
Exhaust port 24 drilled perpendicularly to the longitudinal direction of
The upper wall surface 25 and the lower wall surface 26 are partially overlapped, and these upper wall surfaces 2
5. The bent pieces c and d at the ends of the lower wall surface 26 are arranged to face each other.

As shown in FIG. 3, when the exhaust port 24 is drilled from the top surface of the bonnet B to near the bottom end, the drips adhering to the bonnet B flow and fall along the lower wall surface 26, preventing them from entering the engine compartment. more preventable.

In the figure, R is a radiator, and f is an engine cooling fan.

[Effect of idea]

In claim 1, the upper wall surface 2 of the exhaust port 24 is perforated perpendicularly to the longitudinal direction of the machine frame 21.
5 and the lower wall surface 26 partially overlap, it is possible to prevent drips of the sprayed chemical solution from entering the engine compartment, and it is possible to prevent corrosion of equipment in the engine compartment due to the adhesion of the chemical solution. There is no need for a net to prevent the infiltration of water.

In addition, since the bent pieces e and d at the ends of the upper wall surface 25 and the lower wall surface 26 are opposed to each other, the strength of the bonnet B itself can be ensured, and the bent pieces of the lower wall surface 26 The piece d reliably prevents drips from entering the engine compartment, while the bent piece e on the upper wall surface 25 converts the flow of hot air to prevent drips from entering from the exhaust port 24.

In claim 2, the upper wall surface 25 and the lower wall surface 2
6 are arranged opposite to each other from the upper side to the lower side, so that drips of the chemical solution adhering to the vicinity of the exhaust port 24 of the bonnet B are stored in the lower wall surface 26 and flowed along the lower wall surface 26.・Drop it to ensure that drips are prevented from entering the engine compartment.

[Brief explanation of drawings]

Figure 1 is a partially cutaway front view of a chemical sprayer equipped with the proposed product, Figure 2 is an enlarged view of the part shown in Figure 1,
Fig. 3 is a perspective view of the main parts of a chemical dispersion vehicle of a different type from Fig. 1, Fig. 4 is an enlarged sectional view taken along the line - - in Fig. 3, and Fig. 5 is a main part of a conventional type chemical dispersion vehicle with a bonnet. A perspective view, FIG. 6 is an enlarged sectional view taken along the - line in FIG. Perspective view of main parts of the scattering vehicle, No. 9
The figure is an enlarged sectional view taken along the line - in FIG. 21...Machine frame, 22...Nozzle, 24...Exhaust port, 25...Upper wall surface, 26...Lower wall surface, B...
...bonnet, E...engine, T...chemical tank,
c, d...Bent pieces.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a chemical dispersion vehicle equipped with a chemical tank, a nozzle, an engine covered in the bonnet, etc. on the machine frame, an air exhaust port 24 bored perpendicular to the longitudinal direction of the machine frame 21. Upper wall surface 25 and lower wall surface 26
A bonnet for a chemical dispersion vehicle formed by partially overlapping the upper wall surface 25 and the lower wall surface 26, and having bent pieces c and d at the ends of the upper wall surface 25 and the lower wall surface 26 facing each other. 2. The bonnet of a chemical spraying vehicle according to claim 1, wherein the upper wall surface 25 and the lower wall surface 26 are arranged opposite to each other from above to below.