JPH077753U - Spray nozzle - Google Patents

Abstract

(57) [Summary] [Purpose] When the spray nozzle is moved in a certain direction along the ridges of agricultural products, it is possible to pass both the front and back sides of leaves, etc., that extend at a right angle or close to the moving direction, in a single pass. To be able to spray. [Structure] Of the two nozzle heads 15 and 16 attached to the liquid supply pipe 11, the nozzle head 16 at the tip end portion is tilted toward the tip end, and the other nozzle head 15 is tilted in the opposite direction, whereby one surface of the leaf is Was sprayed by the former nozzle head 16 and the other surface was sprayed by the latter nozzle head 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a nozzle for spraying a chemical solution on agricultural products.

[0002]

[Prior art]

 In order to improve the work efficiency of chemical spray, a spray nozzle in which a plurality of nozzle heads are attached to the tip of the liquid supply pipe of the sprayer has been conventionally used. An example is shown in Fig. 3.

As can be seen from FIG. 3, in the conventional spray nozzle, two nozzle heads 2 and 3 are provided at the tip portion of the liquid supply pipe 1 toward the side on one plane including the center line of the pipe 1. Each of the nozzle heads 2 and 3 is attached to the tip of the pipe 1 at the same angle.

[0004]

[Problems to be solved by the device]

 Considering the case of spraying a medicinal solution onto a crop with the spray nozzle as described above, the leaf 4 extending in the direction perpendicular to the direction of advance of the spray nozzle (see arrow) has one side when it is at the position A in FIG. Although it can be sprayed on the (front surface), if it is moved to position B as it is, it cannot be sprayed on the other surface (back surface). For this reason, it is necessary to change the direction of the spray nozzle one by one to spray on the back surface, or after finishing spraying a row of ridges, change the direction and return to spray the same ridge again. However, there was a problem that the work efficiency was low.

Therefore, an object of the present invention is to improve the working efficiency by making it possible to spray both the front surface and the back surface of a leaf while advancing in the same direction.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention relates to a spray nozzle in which heads of two nozzles are attached to the tip of a liquid supply pipe in a plane including the center line of the pipe and directed laterally, With the reference line drawn on the above-mentioned plane in the middle of both nozzle heads as the center, the nozzle closer to the tip of the liquid supply pipe is attached with a certain inclination angle in the tip direction, and the other nozzle head is reversed. The configuration is such that it is mounted with a certain inclination angle in the direction.

[0007]

[Action]

 According to the spray nozzle having the above structure, the nozzle head on the tip side sprays on the front surface side of the leaf, and the other nozzle head sprays on the back surface side of the leaf.

[0008]

【Example】

 The spray nozzle of the embodiment shown in FIG. 1 is provided with a laterally bent first branch pipe line 12 at the tip of a liquid supply pipe 11, and an intermediate portion between the branch pipe line 12 and a universal joint 13. A second branch pipe line 14 is provided. Nozzle heads 15 and 16 having the same structure are attached to the branch pipe lines 12 and 14, respectively.

One of the nozzle heads 15 incorporates a flow rate adjusting plate 17 at the tip of the second branch pipe line 14 and winds one end of an injection port 19 with an O ring 18 sandwiched between the flow rate adjusting plate 17 and the flow rate adjusting plate 17. The injection port 19 is fastened to the branch line 14 by a union nut 20. The tip of the above-mentioned injection port 19 is formed flat so that the cross-sectional shape is an ellipse, and the packing 21 is press-fitted in the gap around the same.

The center lines a and b of the branch lines 12 and 14 and the nozzle heads 15 and 16 attached to them are on the same plane, and are located in the middle of both branch lines 12 and 14. The center line a on the tip end side of the pipe 1 is inclined by a constant angle θ around the reference line l drawn in the plane. Further, the other center line b is inclined to the opposite side by the same angle θ.

The spray nozzle of the embodiment is as described above, and is used by being attached to the tip portion of the hose of the sprayer. In this case, as shown in FIG. 2, at the position A, the nozzle head 16 on the tip side sprays on the surface of the leaf 22, and when it moves to the position B as it is, the other nozzle head 15 sprays on the back surface of the leaf 22. To do.

[0012]

[Effect of device]

 As described above, the spray nozzle of the present invention can spray on both the front and back surfaces of a leaf extending at a right angle to the moving direction or at an angle close to the moving direction only by moving the spray nozzle in a certain direction along the ridge of the crop. Therefore, there is an effect that work efficiency is improved.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment.

FIG. 2 is an explanatory diagram of the same operation as above.

FIG. 3 is an explanatory diagram of an operation of a conventional example.

[Explanation of symbols]

 11 Liquid Supply Pipe 12 First Branch Pipeline 13 Universal Joint 14 Second Branch Pipeline 15, 16 Nozzle Head 17 Flow Rate Control Plate 18 O-Ring 19 Injection Port 20 Union Nut 21 Packing 22 Leaf

Claims (1)

[Scope of utility model registration request] 1. A spray nozzle having heads of two nozzles attached to the tip of a liquid supply pipe in a plane including the center line of the pipe and directed laterally, wherein the nozzle head is located between the nozzle heads. With the reference line drawn on the plane as the center, the nozzle closer to the tip of the liquid supply pipe was attached to the tip with a constant inclination angle, and the other nozzle head was attached in the opposite direction with a constant inclination angle. A characteristic spray nozzle.