JPH0346848Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a long flexible spraying hose made of soft synthetic resin for spraying chemicals, etc., and particularly relates to a spraying hose for spraying chemicals with large particle diameters. .

[Related technologies and their problems]

This type of spraying hose is used, for example, for spraying agricultural chemicals, and in that case, as shown in FIGS. 5 and 6, a long flexible spraying hose 2 made of soft synthetic resin is attached to the pesticide sprayer 1. When connected, the medicine is forced into the hose 2 along with wind power and sprayed from the spray hole 3.
In that case, the spraying hose 2 used to force-feed and spray large-particle-sized chemicals using high wind power is generally provided with a partition 4 and a relatively large vent hole 5 at the end in the medicine-forced direction. and the spreader 1
By colliding with the partition part 4 and passing through the air vent hole 5, the medicine is sufficiently forced to be fed to the partition part 4 of the spray hose 2.

However, when such a spraying hose 2 is used to spray a chemical with a normal or small particle size, the wind pressure from the sprayer 1 is intensively extracted from the ventilation hole 5 together with the chemical, making it difficult to obtain a good spraying effect. The problem was that there was no.

[Purpose of invention]

The present invention was developed in view of the above circumstances, and the purpose is to provide a spraying hose that can be used for dispersing chemicals with large to small particle sizes by installing a hole diameter adjustment member in the air vent hole. do.

[Structure of the idea]

To achieve the above object, the present invention has a structure in which a catch is welded to the outer periphery of an air vent hole formed in a long soft synthetic resin hose, and a hole diameter adjustment member for the air vent hole is detachably attached to the catch. That's true.

[Example of idea]

Next, an embodiment of the present invention will be described using the same reference numerals for the same parts as in FIGS. 5 and 6.

As shown in FIG. 1, a partition 4 is provided at the end of the long flexible spraying hose 2 made of soft synthetic resin in the medicine feeding direction.
A plurality of relatively large ventilation holes 5 are arranged in parallel on the lower surface of the
A flange portion 7 of a catch seat 6 is welded to the outer peripheral edge of the air vent hole 5 by high frequency or ultrasonic waves, and a hole diameter adjusting member 9 having a hole 8 smaller than the air vent hole 5 is detachably provided on the catch seat 6. It is being Second
As shown in the figure, the seat 6 has a threaded portion 10 on its outer peripheral surface.
A short cylindrical portion 11 having a cylindrical shape and a flange portion 7 provided around the upper end of the short cylindrical portion 11 are integrally molded with a thick wall from synthetic resin, and the hole diameter adjusting member 9 has approximately the same diameter as the short cylindrical portion 11. An upper short cylindrical part 13 having a threaded part 12 on the inner circumferential surface and a lower short cylindrical part 15 having a hole 8 smaller than the air vent hole 5 connected to the lower part of the upper short cylindrical part 13 by a step 14 are made of synthetic resin. The threaded portion 12 of the upper short cylindrical portion 13 of the hole diameter adjusting member 9 is screwed into the threaded portion 10 of the short cylindrical portion 11 of the seat 6.

Therefore, the relatively large ventilation hole 5 formed in the hose 2 is narrowed down to the small hole 8 in the lower short cylindrical portion 15 of the hole diameter adjustment member 9, and when spraying ordinary or small chemicals, the chemicals are The particles will not be intensively extracted from the holes 8 together with the wind force, causing problems in dispersion, and can be used for drugs with large particle sizes if the pore size adjusting member 9 is removed. Further, since the hole diameter adjusting member 9 having a large hole 8 adapted to the type of medicine can be selectively attached to the catch seat 6, a good dispersion effect can be obtained for each kind of medicine.

Incidentally, although a case is shown in which the hole diameter adjusting member 9 is detachably provided on the catch seat 6 by screwing means,
As shown in FIG. 3, a protrusion 16 may be provided on the outer peripheral surface of the short cylindrical portion 11 of the seat 6, and the hole diameter adjusting member 9 may be detachably attached to the seat 6 by pressure fitting means.

Further, as shown in FIG. 4, a drug guide tube 17 may be attached to the lower short tube portion 15 of the hole diameter adjusting member 9.

Further, a drug collision wall 18 may be provided on the seat 6 as required.

[Effect of idea]

In this invention, a catch is welded to the outer periphery of an air vent hole formed in a long hose made of soft synthetic resin, and a hole diameter adjustment member for the air vent hole is removably attached to the catch. By installing a pore size adjustment member, it can be used for dispersing various drugs with particle sizes ranging from large to small, and by selectively installing a pore size adjustment member with a pore size suitable for each type of drug. A good spraying effect can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is an exploded perspective view of the catch seat and the hole diameter adjustment member, Figure 3 is a sectional view of another embodiment, Figure 4 is a sectional view when a drug guide tube is used, and Figures 5 and 6 are of the conventional FIG. 2...Spraying hose, 5...Air vent, 6...Socket, 9...
Hole diameter adjustment member.

Claims (1)

[Scope of utility model registration request] A spraying hose characterized in that a catch is welded to the outer periphery of an air vent hole formed in a long hose made of soft synthetic resin, and a hole diameter adjusting member for the air vent hole is detachably provided on the catch.