JPS6127653Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is an agricultural and horticultural application that allows suitable spraying liquids such as water, liquid fertilizer, and chemical solutions to be scattered over a wide area while rotating a rotating body at a low speed. Regarding the rotary spreader.

[Technical background of the invention and its problems]

BACKGROUND ART Conventionally, various types of rotary sprayers have been provided in which a rotary body rotates due to a reaction force when spraying liquid is ejected from an ejection hole and sprays a spraying liquid. For example, Tokko Akira
There are water sprinklers such as No. 29-383 and rotary water sprinklers such as Utility Model Publication No. 49-38581.

However, these devices are not suitable for dispersing the sprayed liquid over a wide range while rotating the rotating body at a low speed.

In other words, in order to scatter the spray liquid over a long distance, it is sufficient to increase the jetting pressure of the spraying liquid, but when the jetting pressure is increased, the reaction force increases and the rotational speed of the rotating body increases, causing the spraying speed of the spraying liquid to become relative. This had the disadvantage that the ejection distance became low and the ejection distance did not extend.

In addition, in the conventional type, the spray liquid is released from a small gap between the rotating body that rotates due to the reaction force when the spray liquid is ejected from the spout hole and the support body that rotatably supports the rotating body. There is a risk that the spray liquid will leak and the spray pressure of the spray liquid that is sprayed from the nozzle hole will decrease.
It is difficult to expect smooth rotation of the rotating body, and there are drawbacks such as large energy loss due to friction of the rotating body.

By the way, in the case of spraying equipment using rotary spreaders used for agricultural purposes, since many rotary spreaders are installed and used in a spray pipe installed on a large area of land, it is necessary to use a single rotary spreader. The impact on the entire spraying equipment due to a drop in pressure due to a leak of the spray liquid or a decrease in the rotational smoothness of the rotating body, etc., can be significant. This also creates an economical problem in that additional pressure must be applied to the spray liquid in the pipe, which in turn requires a larger and more powerful pressure applying device (such as a compressor). That is, it was necessary to prevent pressure loss due to leakage of the spray liquid in one rotary sprayer as much as possible, and to also make sure that the rotating body rotated as smoothly as possible with respect to the support body.

[Purpose of invention]

This invention solves the above-mentioned difficulties and makes it possible to spray the sprayed liquid over a wide area, so that the sprayed liquid leaks from the gap between the rotating body and the support body. This prevents a decrease in the spraying pressure of the spraying liquid spouted from the nozzle hole, thereby preventing a decrease in the spraying distance, and reducing the energy loss of the power device that feeds the spraying liquid into the spraying pipe. , the rotating body is formed so that it can rotate smoothly with respect to the support body, so that smooth low-speed rotation of the rotating body can be easily obtained;
The purpose of the present invention is to enable a suitable spraying liquid such as water, liquid fertilizer, chemical solution, etc. to be scattered over a wide range while rotating a rotating body at a low speed.

[Summary of the idea]

In order to achieve the above-mentioned purpose, in a rotary sprayer for agriculture and horticulture, in which a rotating body rotates and sprays the spray liquid by the reaction force of spraying the spray liquid from the spout hole, a substantially elongated cylinder having a hollow part that serves as a flow path is used. a nozzle body formed in a shape, a rotary shaft body having a flange extending from the lower end of a cylindrical shaft portion having a hollow portion serving as a flow path, and a rotary shaft body having a flange portion extending from the lower end of a cylindrical shaft portion having a hollow portion serving as a flow path; A rotary body is formed with a branch connection body having a hollow part that communicates with the hollow part, and the plurality of nozzle bodies are arranged so that their tips are slightly upward, and the male threaded part at the base end is connected to the branch connection body. The male threaded part at the upper end of the rotating shaft body is screwed to the lower part of the branch connection body, and the nozzle body has an ejection hole for rotation in the part near the base end and a closed tip. A cylindrical bearing body is formed by drilling a spout hole for dispersion along the cylindrical center of the nozzle body, has a flange part at the lower end, and can rotatably support the shaft of the rotating shaft body. form,
A support body is formed with a male threaded portion on the lower outer peripheral surface into which a cylindrical bearing body can be inserted, and the support body is rotatably fitted onto the cylindrical bearing body between the lower surface of the branch connection body and the upper surface of the support body. A plurality of ring bodies rotatably fitted onto the rotary shaft body are interposed between the lower surface of the flange of the cylindrical bearing body and the upper surface of the flange portion of the rotary shaft body. The gist of the present invention is that an O-ring that is fitted onto the cylindrical bearing body is interposed between the lower surface of the main body and the upper surface of the flange portion of the cylindrical bearing body.

[Example of idea]

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The rotary sprayer of this invention has two nozzle bodies A
A rotating body R consisting of a rotating shaft body B and a branch connection body C is rotatably supported by a support body E via a cylindrical bearing body D.

The nozzle body A is formed into an elongated cylindrical shape with a hollow part 2 having a circular cross section that serves as a flow path, and the closed tip part has a dispensing valve along the cylindrical center of the nozzle body A. An ejection hole 1 is provided, and a rotation ejection hole 1 is provided in a portion near the base end.
By the way, the rotational ejection holes 1 are set so that the ejecting direction of the spray liquid to be ejected is the same as the rotational direction of the rotating body R. Further, a male screw is threaded onto the outer circumferential surface of the base end of the nozzle body A. Incidentally, a flat portion 4 is formed in a portion of the nozzle body A near the male screw, and is formed so as to be easily grasped with a suitable tool.

By the way, the rotational ejection hole 1 may be opened by cutting out a groove perpendicular to the cylindrical center of the nozzle body A, as shown in FIGS. 6 to 8.

Note that the size, shape, distance from the base end, etc. of the rotating jet hole 1 are not limited to the illustrated example; It is sufficient if the setting is such that it allows rotation (degree of rotation).

The rotating shaft body B is formed of a cylindrical shaft portion 5 having a hollow portion 8 serving as a flow path, and a flange portion 6 extending from the lower end of this shaft portion 5 and having an inflow hole 7 for the spray liquid. A male screw is threaded onto the outer circumferential surface of the upper end of the portion 5.

The branch connection body C has a substantially Y-shaped hollow part 9 that splits into two upwards from the lower end, and the male screw part of the nozzle body A and the rotating shaft body B are attached to the inner circumferential surface of the hollow part 9. A female thread is screwed into each of the male threads so that the male threaded portion of the two can be screwed together.

Then, the male threaded part of the upper part of the rotating shaft body B is screwed into the female threaded part of the lower part of the branched connection body C, and the female threaded part of the upper part of the branched connection body C at opposite positions
A male threaded portion at the base end of the nozzle body A is screwed through an angle adjustment nut 3 to configure the rotating body R into a substantially Y-shape from the front with the tip of the nozzle body A facing slightly upward. At this time, the vertical direction of the rotating jet hole 1 (vertical direction in a plane perpendicular to the cylindrical center of the nozzle body A) can be arbitrarily set using the angle adjustment nut 3. Can be done.

The cylindrical bearing body D is formed into a substantially cylindrical shape with a flange portion 10 extending from the lower end, into which the shaft portion 5 of the rotating shaft body B is inserted to rotatably support the rotating shaft body B. do. Incidentally, this cylindrical bearing body D can be made of a sliding bearing material to reduce the coefficient of friction at the contact surface so that the rotating shaft body B can rotate smoothly.

The support main body E has a male screw portion 11 screwed onto the lower outer peripheral surface thereof, which is screwed onto the dispersion pipe P, etc.
The upper outer circumferential surface is formed into a nut shape so that the screwing operation can be easily performed, and the cylindrical bearing body D is formed so as to be insertable therein.

As shown in FIG. 2, an O-ring 14 that is fitted onto the cylindrical bearing body D is interposed between the lower surface of the support body E and the upper surface of the flange portion 10 of the cylindrical bearing body D. Further, between the lower surface of the flange portion 10 of the cylindrical bearing body D and the upper surface of the flange portion 6 of the rotating shaft body B, a rubber, plastic, or plastic material is rotatably fitted onto the rotating shaft B. , a ring body 15 made of rubber or the like is interposed to prevent the spray liquid from leaking from the gap in the contact area between the rotating body R and the cylindrical bearing body D, and to prevent the rotational smoothness of the rotating body R from being impaired. It is formed so that it will not be damaged.

Furthermore, a ring 16 rotatably fitted onto the cylindrical bearing body D is interposed between the lower surface of the branch connector C and the upper surface of the support body E, so that the lower surface of the branch connector C and the upper surface of the support body E are interposed. The structure is designed to allow smooth sliding between the two.

By the way, when the number of nozzle bodies A is increased to three or four and connected to the branch connection body C, the amount of sprayed liquid increases and the low speed rotation of the rotating body R itself can be made more stable.

When using the rotary spreader configured as described above, first, screw the lower surface of the male thread of the support body E onto the spray pipe P and attach it, and operate the power device as appropriate to spray water, liquid fertilizer, etc. , a suitable spraying liquid such as a chemical solution is sent into the spraying pipe P by applying pressure. Then, the spray liquid is ejected and scattered from the spraying nozzle 1 and is also ejected from the rotating nozzle 1. At this time, the rotating body R continues to rotate at a low speed due to the rotational moment caused by the reaction of the spray liquid ejected from the rotational ejection hole 1. By the way, this rotary spreader can be used in a wide range of fields such as industry, fishing, snow melting, etc. in addition to agriculture and horticulture.

[Effect of idea]

Therefore, in the rotary sprayer according to the present invention, the nozzle body A is provided with a rotating nozzle 1 in the proximal portion thereof, and the dispersion nozzle 1 is provided in the closed tip portion of the nozzle body A. Since it is formed by drilling along the cylinder core, the rotating body R can be rotated at a low speed due to the small rotational moment caused by the reaction of the spray liquid ejected from the rotational spout hole 1, and the spray liquid spray pressure is increased. Even if the rotation speed of the rotating body R is increased, the rotation speed of the rotating body R does not increase so much and a low rotation speed can be maintained. In addition, the spray liquid ejected from the spray nozzle 1 is hardly affected by the rotation of the rotating body R, and the spray liquid can be ejected over a significantly longer distance, thereby expanding the spraying range of the spray liquid.

A cylindrical bearing body D that can rotatably support the shaft portion 5 of the rotating shaft body B is formed, and the cylindrical bearing body D
In combination with the formation of the support body E that can be inserted, the cylindrical bearing body D interposed between the shaft portion 5 of the rotating shaft body B and the support body E has good watertightness. It is now possible to use a sliding bearing material with a small friction coefficient that allows the rotating shaft body B to rotate smoothly, improving rotational smoothness, and helping to rotate the rotating body R at a low speed with a small rotational force.

A ring 16 rotatably fitted onto the cylindrical bearing body D is interposed between the lower surface of the branch connection body C and the upper surface of the support main body E, and the lower surface of the flange portion 10 of the cylindrical bearing body D and the rotating shaft body are interposed. A plurality of ring bodies 15 rotatably fitted onto the rotary shaft body B are interposed between the upper surface of the flange portion 6 of the support body E and the upper surface of the flange portion 10 of the cylindrical bearing body D. Since the O-ring 14 externally fitted on the cylindrical bearing body D is interposed between the parts, the spray liquid in the spray pipe P is maintained while maintaining sufficient rotational smoothness of the rotating body R. is the shaft portion 5, the cylindrical bearing body D, and the cylindrical bearing body D.
It is possible to reliably prevent leakage from the gaps between the support body E and the support main body E, and to prevent a drop in the spraying pressure of the spray liquid. Further, the spraying liquid is strongly ejected from the sprinkling nozzle 1 to help scatter the spraying liquid over a long distance, and it is also useful for smooth low-speed rotation of the rotating body R.

Since a male threaded portion 11 is provided on the outer peripheral surface of the lower part of the support body E, it is possible to screw it onto the dispersion pipe P.
The rotary spreader can be easily installed.

Furthermore, since the branch connection body C connects the plurality of nozzle bodies A and the rotating shaft body B by communicating the hollow parts 2 and 8, respectively, the hollow part 8 of the rotating shaft body B and the plurality of nozzle bodies The hollow part 2 of A can be communicated with ease, and the spray liquid can flow smoothly.
Further, an appropriate number of nozzle bodies A can be connected at appropriate positions.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an exploded perspective view, Fig. 2 is a vertical sectional view, Fig. 3 is a partially cutaway plan view, and Fig. 4 is a cross-sectional view of the nozzle part in the second 5 is a perspective view showing the state of use, FIGS. 6 to 8 show other embodiments, FIG. 6 is a partially cutaway plan view, and FIG. 7 is a rotating spouting part. 8 is a cross-sectional view, and FIG. 8 is a perspective view. R...Rotating body, A...Nozzle body, 1...Ejection hole, 2...Hollow part, 3...Angle adjustment nut, 4...
...Flat part, B...Rotating shaft body, 5...Shaft part, 6...
Flange part, 7...Inflow hole, 8...Hollow part, C...
... Branch connection body, 9 ... Hollow part, D ... Cylindrical bearing body, 10 ... Flange part, E ... Support main body, 1
1...Male thread part, 14...O ring, 15...Ring body, 16...Ring, P...Spreading pipe.

Claims (1)

[Scope of utility model registration request] A nozzle body formed in a substantially elongated cylindrical shape with a hollow portion serving as a flow path in a rotary sprayer for agricultural and horticultural applications in which a rotating body rotates and sprays the spray liquid by the reaction force of spraying the spray liquid from the spout hole. a rotating shaft body formed by extending a flange portion to the lower end of a cylindrical shaft portion having a hollow portion serving as a flow path; and a hollow portion communicating the hollow portion of the rotating shaft body and the hollow portions of each of the plurality of nozzle bodies. The plurality of nozzle bodies are arranged with their tips facing slightly upward, and the male threaded portions at the proximal ends are screwed into the upper part of the branch connection body, respectively. The male threaded part at the upper end of the rotating shaft body is screwed to the lower part of the branch connection body, and the nozzle body has an ejection hole for rotation in the part near the base end, and an ejection hole for spraying in the closed tip part. is formed by drilling along the cylindrical center of the nozzle body, forming a cylindrical bearing body that has a flange part at the lower end and can rotatably support the shaft part of the rotating shaft body, and has a cylindrical bearing body on the lower outer peripheral surface. Forming a support main body having a male threaded portion into which a cylindrical bearing body can be inserted, between the lower surface of the branch connection body and the upper surface of the support main body,
A ring rotatably fitted onto the cylindrical bearing body is interposed between the lower surface of the flange of the cylindrical bearing body and the upper surface of the flange portion of the rotating shaft body. interpose a plurality of ring bodies as appropriate,
A rotary spreader characterized in that an O-ring fitted onto the cylindrical bearing body is interposed between the lower surface of the support body and the upper surface of the flange portion of the cylindrical bearing body.