JPS5830358A - Sprinkler apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spraying device, and more particularly to a spraying device for spraying a small amount of a chemical agent to aid the growth of crops. The device of the invention is also suitable for many other purposes, such as the extermination of spiders, mosquitoes, flies, locusts, etc., and for small-scale spraying for public health purposes. The purpose of the present invention is to provide a portable spraying device that can be used as a sprayer.

British Patent Application No. 7,929,867 (Publication No. 2,
No. 057,299A, same applicant, same as the present application) has a rotary atomizer and an axial fan connected thereto, both of which together form a rotary atomizing means.

The axial fan is placed within a cover configured to control the air flow generated by the fan when the means is rotated, and in use the air flow passes through the atomizer and discharges the sludge produced thereby. Disperse the drops.

Such a construction makes it possible to apply a very small amount of liquid per unit area, which significantly saves the cost of the liquid used and which does not disturb the soil or the soil, as is often the case when applying with conventional equipment. It is possible to reduce undesirable contamination of crops. The present invention consists of 1. It provides an improvement over the device described in the aforementioned patent application.

The above-mentioned patented FHi mainly refers to a spraying device W that can be mounted on a vehicle to completely spray large areas of cultivated land, but it is small and light and cannot be carried and operated by a single person. There is a desire for a spraying device f which can provide the advantages of low volume spraying provided by devices of the type mentioned at the outset.

In this regard, the present invention provides a complete spraying device that can be carried and used by one person.

This device has a holding arm, at one end of which.

Rotary atomizing means consisting of a rotary atomizer and a trickle fan connected thereto are mounted, the axial fan being configured to control the air flow generated by the trickle fan when said means are rotated. It is placed in a cover mounted on the holding arm, and in use, the air flow passes through the atomizer, dispersing the droplets created thereby, and a drive for transmitting rotational drive to the atomizing means. A rotary atomizer having means and means for supplying the spray liquid to the sprayer comprises a tubular shaft for receiving the spray liquid and a decoy 1 of the rotary atomizer.
It is desirable to have a perforated spray cylinder which is rotatable about the perforated cylinder, and means are provided for allowing liquid from the tubular shaft to flow into the perforated cylinder.

The drive means for the atomizing means comprises an internal combustion pump placed on the holding arm and drivingly connected to the atomizing means by a mechanical transmission means, the mechanical transmission means including a drive gear and a drive pel H-type. do. Preferably, the internal combustion engine is placed on the end of the holding arm opposite the end to which the atomizing means is attached.

In topography, the driving means comprises a fluid or air motor placed on the holding arm and drivingly connected to the spraying means;
A conduit is placed on the holding arm for supplying the motor with fluid or air under pressure.

The spraying device is also provided with a container for the spraying liquid and means for supplying the liquid under pressure from the container via a liquid supply conduit connected to the rotary atomizer, the device being controlled by the user of the device. It has means to enable it to be carried.

The above container is one example.

It is made in the form of a means of carrying on the user's back (a carrying box) that can be carried with the user's ocher.

Particularly, the container is placed on a wheeled trolley that can be carried by one person, in which case the holding arm of the device is also placed on said trolley, preferably in IJT adjustment.

To supply liquid under pressure from the container, the container is pressurized or the liquid is supplied from the container by a bonder.

The mackerel will be explained below according to the attached drawings.

In FIG. 1, the dispensing device comprises a rotary atomizer 10 and an axial fan 11, which are interconnected to form an integral rotary atomizing means.

The sprayer has a fixed tubular shaft 12, which is held on a mounting part 13 and has a union 14 at one end, which has a receptacle for supplying the liquid to be sprayed into the shaft 12. The other end of the shaft 12, to which the flexible conduit is connected, is closed by a bladder 15, and in the wall of the shaft 12 near this bladder an inward hole 16 is made, through which fluid under pressure flows into the shaft 12. Project outward in the radial direction.

It is attached to the KOT rotation on the 12th floor by the hub 17 bearings 18 of the spider 1, 7, and 11. The hub is made of three parts, 9 and 9 sides, and the two parts can be connected by screws 21. The three blades 220 of the fan have a cylindrical base end at the hub part 1
It is held in a circular socket formed by cooperating shaped parts 9 and . With this structure, the pitch angle of the blade can be determined by loosening the screw 21 and adjusting the pitch angle between the hub part 19 and '2.
1) and then the blades 22''If: can be adjusted by rotating to adjust the pitch and then tightening the screws 21 again to fix the blades in the new position.
It can be made from plastic such as “Delrin”.

Although three blades are shown in the figure, any other suitable number may be used, for example five blades.A dispersion tube n protrudes from one end face of the tube, and the tube is connected to a tube 12.
surround the edge of. The dispersion tube 23 may be made of stainless steel and has a porous surface area, with the pores preferably extending over 80% of the surface of the tube, thereby allowing liquid from the shaft 12 to pass through the dispersion tube. Three equally spaced longitudinal vanes 24 are provided around the inner surface of the dispersion tube, each vane being located in a radial plane.

One end of the wing 24 is attached to a circular plate 24a surrounding the shaft 12, and the other end is attached to a circular plate 24a that surrounds the shaft 12.
4b. The blade 24 allows the liquid to come out from the shaft 12.

This liquid is followed before passing through the dispersion tube 23, which serves to perform the initial comminution. Although three vanes 24 are shown in the figure, any other suitable number may be used, and the vanes 24 may also be of other shapes, such as one extending helically along the length of the dispersion tube. Possibly surrounding the dispersion tube 23 and radially outwardly spaced from it a porous atomization cylinder 5 is placed, forming a circle ff
J25 can be made from metal mesh. One end of the cylindrical portion is attached to a flange portion extending radially from the hub portion, and the other end is attached to the aforementioned cap 27.

As shown in FIG. 2, axial fan 11 rotates within the downstream end of a fixed cover held on mounting bar 13. As shown in FIG. The rotary atomizer projects out of the downstream end of the cover 4, which may be made of metal or plastic, such as fiberglass reinforced plastic.

In use, the atomizing means consisting of the fan 11 and the atomizer 10 are rotated by drive means (described below) and the sprayable liquid is directed into the shaft 12 under pressure. The liquid under pressure exits radially outward from the hole 16 in the shaft and before passing through the dispersion tube 23 is blocked by [24] and broken into droplets. passing through the atomization cylinder 25,
This further shatters it into extremely fine droplets. As the droplets pass outwardly through the cylinder 25, they are entrained into the airflow from the axial fan 11. The air flow is directed by the cover flap and the droplets are distributed as a fine through-hole onto the area towards which the spray means are directed. The combination of the special construction of the sprayer and the controlled air flow makes it possible to spread very small amounts of liquid over very large areas in a controlled manner, with the distribution conditions depending on the pressure of the liquid and the pitch angle of the fan 11. can be controlled by

The atomizing means described with respect to FIG. 1 may have a number of uses;
Although it can also be used in vehicle-mounted spreaders or large portable spreaders, it is particularly suitable for use in portable spreaders that can be used by people. This is because only a small amount of liquid is required to spread over a large area and the supply of liquid can therefore be easily transported by one person. 2 and 3 show one version of a portable spraying device having the spraying means of FIG. 1. FIG.

In FIG. 2, the dispensing device has a tubular retaining arm 29.

Holding arm 29cm, angle bracket 30km at one end.

The above-mentioned mounting bar 13 for holding the cover and the tubular shape of the spraying means is attached to this. The hub 17 of the axial fan (the blades of which have been omitted for clarity in Figure 2) has a daily pulley on which a drive belt 31 is placed, the belt (1 being a retaining belt). A drive pulley 32Vc is mounted on the end of the arm 29 and is driven through a gear at one end of a shaft (not shown) extending longitudinally through the holding arm 29.
The shaft is connected to the output shaft of a small internal combustion engine (ennon) 33, and the holding arm 29 remote from the atomizer is connected to the output shaft of a small internal combustion engine 33.
placed at the edge of Cornion 14 at the end of tubular axis I2
The four pipes 35 extend along the retaining arm 29 and are connected to a flexible hose 37 by a quick-disconnect fitting 36 near the engine 330, which is connected to a flexible conduit 35 by an OJ variable restrictor. The adjustable pressure controller is connected to a carrying means 39 which forms a container for the liquid to be dispensed via the pipe. The container is pressurized or a ponno is provided on the carrying means for conveying liquid under pressure from the container.

A pressure gauge 40 is mounted on the holding arm 29, and the pressure type 4
0 is connected to the conduit 35, and the holding arm 29 is further connected to a stand 41'kM, which holds the sprayer off the ground when the device is placed on the ground.

The carrying means 39 and the retaining arm 29 have a sling (not shown), which makes it possible to hold the carrying means on the user's back rest when the device itself is suspended from one of the user's shoulders. . The structure of the device is made so that the main weight of the spraying means and the engine 33 is close to the weight of the user σ) holding the holding arm 29 protruding forward, so that the spraying means can produce a finely atomized spray. It can be directed downward and forward as required for dispersion.

Preferably, the sling for suspending the atomizing means is connected to the retaining arm such that the weight of the engine at one end of the retaining arm is substantially balanced by the weight of the atomizing means at the other end.

However, as the end of the holding arm experiences a recoil from the air flow from the fan when the means is in use, it is desirable to orient the fan in such a way that this recoil also serves to balance the weight of the atomizing means. This makes it possible to carry the device lighter and easier to control than e4+-6.

Although the device described above is designed so that it can be carried by a person by suspending it from their body, other uses are also possible, for example by attaching one end of the retaining arm 29. It can be mounted on a trolley that is light enough to be easily carried by one person, and which also holds a container for the liquid to be sprayed.

In this case, the holding arm is adjustably attached to the upper part of the trolley and adjusts the position and orientation of the spraying means VC so as to obtain the desired spray shape along the path of the trolley that is pushed or pulled by the user. is made possible. The above-mentioned cart is conveniently a two-wheeled cart made of light metal maple and similar to those commonly used as a cork cart.

On the other side, shown in FIG. 4, a small pulley 42 connected to the axial fan knob 17 is driven by a drive belt 31 from a pulley 43 connected to the output shaft of a fluid motor 44. A fluid motor 44, fJ+r, supplied under pressure via a flexible conduit extending along the retaining arm 29, is driven in a known manner by the body. The fluid is pressurized by a power-driven 0T transport pump.

Furthermore, in the song example (not shown), the rotary atomizer is
Driven by an air motor mounted on the end of the holding arm,
Pressurized air is supplied to this motor from a known portable air pump. In the structure shown in FIGS. 4 and 5, the bar 13 is held on the claw side that holds the spray means and the cover 28. It is connected to the end of the holding arm by a stay 45. Both ends of the bar 13 are connected to a retaining stay 45 by adjustable clamp screws 46, and the bar 1
3. The cover and atomizing means can therefore be tilted with respect to the retaining stay 45 by loosening the screw 46, adjusting the position of the atomizer and cover, and then tightening the screw 16 again. Alternatively, a case using an air motor may also be applied. This is because the pressurizing part 8 or the conduit supplying air to the motor is flexible, so that the motor can be removed together with the atomizing means.

It is possible to adjust the angle of the cover and spray means relative to the holding arm as required.

In the above example, the rotating dispersion of the negative atomizer is in the form of a cylindrical wire mesh, but other shapes of rotating bodies can also be used, replacing the wire mesh cylinder with other shapes of porous holes. For example,
It is also possible to make a cylinder made entirely of metal and provide a labyrinth passage for the liquid that flows out from the central axis due to centrifugal force.
A rotary sprayer using such a structure is disclosed in British Patent Nos. 1 and 4.
This is as shown in the specification of No. 86,427. Alternatively, the injector could be constructed as having a number of axially spaced rotating disks, in which case the liquid would flow outward over the surface of the disks and fill each disk. It is dispersed from the outside as droplets with a slight amount of oil.

[Brief explanation of drawings]

Fig. 1 is an axial sectional view of a spraying means consisting of a rotary atomizer and an axial fan, and Fig. 2 is a side view of a portable spraying device that can be used by only one person and has the spraying means of Fig. 1. , FIG. 3 is a partial view in the direction of the arrow in FIG. 2, FIG. 4 is a sectional view of the fluid-driven injection means, FIG. 5 is a front view of the means in FIG. 4, and FIG. The figure is a partial sectional view taken along line A--A in FIG. 5. lO...rotary sprayer, 11... axial flow fan, 12.
...tubular shaft. 29...holding arm, 33.・Benzine, 39...Means of carrying on one's back. 44...Fluid motor. Applicant's agent: Inomata

Claims (1)

[Scope of Claims] 1 - A dispersing device which can be carried and used by one person, comprising a holding arm, one end of which has a rotary atomizer and an axial fan connected thereto. rotary atomizing means are mounted, said axial fan being positioned within a cover mounted on said retaining arm and configured to control the air flow generated by said fan when said means is rotated. , drive means for transmitting rotational drive to the atomizing means and means for supplying spray liquid to the atomizer, with the air flow passing over the atomizer in use to disperse the droplets produced by the atomizer; A dispersion device characterized by comprising: 2. The rotary atomizer has a tubular shaft for receiving the spray liquid and a perforated atomizing cylinder rotatable about the shaft;
2. A dispensing device as claimed in claim 1, further comprising means for allowing liquid to flow from said tubular shaft into a perforated spray cylinder. Spraying according to claim 1 or 2, wherein the drive means for the three-rotary atomizing means comprises an internal combustion engine placed on the holding arm and drivingly connected to the rotary atomizing means by mechanical transmission means. Device. 4. said driving means comprises a fluid or air motor placed on the holding arm and drivingly connected to the rotating atomizing means;
3. Spreading device according to claim 1, wherein a conduit for supplying the motor with fluid or air under pressure is placed on the holding arm. 5. The spraying device according to claim 3, wherein the mechanical transmission means comprises a drive gear and/or a drive pel. 6. Spreading device according to claim 3 or 5, wherein the internal combustion engine is placed on the end of the holding arm opposite to the end on which the rotary atomizing means is attached. 7 a container for the spray liquid and means for supplying the liquid under pressure from said container via a liquid supply conduit connected to a rotary atomizer, such that said container can be carried by the user of the device; Claims 1 to 6 have means for
Spreading device according to any of paragraphs. 8. Dispensing device according to claim 7, wherein said container is in the form of a backpack means that can be carried on the user's back. 9. Spreading device according to claim 7, wherein the container is placed on a wheeled trolley, which can be carried by -one person, and the holding arm is also placed on the trolley. 10. A dispensing device according to any one of claims 7 to 9, wherein the container is pressurized and the pressurization of this container constitutes the means for supplying the metal under forming pressure from the container. 11. The dispersing device according to claim 7, wherein the means for supplying the liquid under pressure from the container is a pump.