JPS6024416Y2 - pest control head - Google Patents

Description

[Detailed description of the invention] This invention relates to the head of a pest control device used when spraying chemical solutions in orchards, vegetable gardens, afforestation areas, etc. The purpose is to control pests by efficient spraying over a wide range. The purpose is to significantly improve effectiveness.

BACKGROUND ART Conventionally, devices have been known in which a chemical liquid injection nozzle mounted at an eccentric position is rotated about a horizontal axis while causing the horizontal axis to revolve around a vertical axis.

According to this, because the centrifugal force caused by the eccentric rotation of the injection nozzle acts perpendicularly to the direction of injection of the chemical liquid, the chemical liquid injected from the chemical liquid injection nozzle is diffused and atomized more than necessary, and its flight distance is shortened. However, there is a drawback that the spraying area at a given hydraulic pressure becomes narrow, and the spraying becomes uneven due to partial thickness.

The present invention focuses on this point and eliminates the conventional defects, and its gist is that a chemical liquid injection nozzle is provided on a head that rotates in a horizontal plane so as to be swingable in a vertical direction,
The rotational force of the impeller rotated by the application of pressure liquid is used as the drive source for horizontal rotation of the head and vertical swing of the chemical liquid injection nozzle, and the locus of the chemical liquid injection nozzle changes in the rotational direction with each rotation of the head. The point is that the number of swings of the chemical liquid injection nozzle is set to a number that is not evenly divided by the number of rotations of the head so that the number of rotations varies by a small amount.

In the device shown in FIGS. 1 to 3, the vertical rocking motion of the chemical liquid injection nozzle is performed via a crank pivoted on a crankshaft driven by the rotation of an impeller. , this will be explained separately into the chemical liquid passage mechanism and the motion transmission mechanism.

First, the chemical liquid passage mechanism includes a branch chamber 2 provided at the upper end of the vertical pipe 1, which branches chemical liquid guide paths 3 and 3' to the left and right, and an impeller to be described later with an injection port 4 in one chemical liquid guide path 3'. A blade rotation nozzle is connected in the tangential direction of 7, and a chemical liquid injection nozzle 6 is connected to the other chemical liquid conduit passage 3 so that the chemical liquid passage is at right angles and can swing freely in a liquid-tight state. do.

Next, the drive transmission mechanism unit attaches the A-worm 9 to the horizontal drive shaft 8 to which the impeller 7 is attached, and also attaches the A-worm 9 to the horizontal drive shaft 8 .
The crankshaft 10 is supported above and the driven shaft 11 is supported horizontally at right angles to the horizontal drive shaft 8, and a small gear 12 is attached to the shaft end of the driven shaft 11.
A large gear 13, which is attached to the shaft end of the shaft, is meshed with the large gear 13.

In addition, the driven shaft 11 has an A worm gear 14 and a B worm gear 1.
A worm gear 14 is attached to the A worm gear 14 of the horizontal drive shaft 8.
In addition to meshing with the worm 9, the B worm 15 is meshed with a B worm gear 16 that rotates around the vertical tube 1.

This B worm gear 16 is fitted into a sleeve 18 that covers a vertical pipe for the purpose of connecting to a chemical solution supply base pipe 17.

Further, a plunger 19 is pivotally attached to the crankshaft 10,
The free end of this plunger 19 is connected to the chemical liquid injection nozzle 6
The liquid injection nozzle 6 was inserted into the swinging cylinder 20 which was rotated parallel to the swinging cylinder 20 so as to be freely swingable, and the swinging cylinder 20 and the chemical injection nozzle 6 were fixed to the free end of the swinging cylinder 20 in a direction perpendicular to the axis. arm 21
The configuration is connected by .

Each shaft is supported by a case 22.

The pest control head configured as described above is used by connecting the sleeve 18 to the chemical supply pipe 17 installed upright.
/ctrl) The chemical liquid passes through the vertical pipe 1 and the branch chamber 2, and is injected from the blade rotation nozzle 5 and the chemical liquid injection nozzle 6.

The chemical solution injected from the blade rotation nozzle 5 hits the blades of the impeller 7 and rotates it.

The rotation of the impeller 7 is transmitted from the A worm 9 to the A worm gear 14 to drive the driven shaft 11.

The rotation of the driven shaft 11 is transmitted to the crankshaft 1 on which the large gear 13 is attached via the small gear 12 on the one hand, which is attached on the other side.
0 and the other is transmitted to the B worm gear 16 meshed with the B worm 15.

Since this B worm gear 16 is fitted into a sleeve 18 fixed to the chemical solution supply pipe 17 and does not rotate, the B worm 15 moves around the B worm gear 16. This is the chemical solution supply pipe 17 of the head. It is a rotation with respect to .

Further, the rotation transmitted to the crankshaft 10 is converted into a swinging motion by a plunger 19 pivotally connected to the crankshaft, thereby swinging the swinging cylinder 20.

In addition, the rotation of the impeller is decelerated to 1124 degrees, transmitted to the driven shaft, is decelerated to 1/3, and is transmitted to the crankshaft, decelerated to 1160 degrees, and transmitted to the sleeve. Due to the planetary mechanism in which the B worm moves, the chemical liquid injection nozzle swings 20173 times during one horizontal rotation of the head.

What is shown in FIG. 4 is a schematic diagram of the configuration of a chemical liquid injection nozzle in which vertical swinging is performed by vertical movement of a trochanter elastically abutted on a corrugated cam.
A nozzle assembly 25 in which a nozzle 3 and a secondary nozzle 24 are bifurcated at an obtuse angle is pivotably supported on a support leg 26 integrally formed with the vertical pipe 1, and a drive shaft 27 and a driven shaft 28 are arranged parallel to the secondary nozzle 24.
The impeller 7 is mounted on the end of the drive shaft so that the injected liquid comes into contact with it, and the power is transmitted from the drive shaft 27 to the driven shaft 28 using gears 29 and 30 for deceleration transmission. A rotor 31 is attached to the shaft end, and a pivot part of the nozzle assembly 25 is attached to the rotor 31.
A spring 33 is attached to press the transfer element 31 against the surface of a bevel gear-shaped corrugated plate 32, which will be described later.

The corrugated plate 32 is integrally fitted into the sleeve 18 which is placed over the vertical tube 1, and the vertical tube 1 is connected to the nozzle assembly 25 by a connectable hose 34.

In addition, when transmitting the rotation of the impeller 7' to the transfer element 31,
It is not necessarily necessary to slow down the speed, but by selecting the angle of the blades of the impeller gear with respect to the chemical injection direction, the impeller can be made to rotate at a low speed, or a part of the sprayed liquid can be applied to the blades, so that the impeller can be rotated at a low speed. It is also possible by the means of

Further, the swing angle may be changed and set by sliding the transfer element 31.

In the device configured as described above, the chemical liquid supplied from the chemical liquid supply main pipe 17 is transferred to the flexible hose 3 connected to the sleeve 18.
5 and is injected from the main nozzle 23 and the sub nozzle 24, respectively.

Then, the chemical liquid injected from the sub nozzle 24 is transferred to the impeller 7.
Give rotation to ″.

This rotation is decelerated and transmitted to the transfer element 31.

Since the transfer element 31 is pressed against the upper surface of the corrugated plate 32 by the spring 33, it rolls on the corrugated plate along the waveform,
The head rotates around the sleeve while imparting vertical rocking motion to the sub nozzle 24 and the main nozzle 23.

As described above, this invention uses the rotational force of the impeller rotated by the application of pressure liquid as a driving source to horizontally rotate the head and swing the chemical liquid injection nozzle vertically with respect to the head. Unlike those in which the chemical liquid spray nozzle rotates around a horizontal axis, the chemical liquid does not spread and become atomized more than necessary, and the chemical liquid reaches a long distance and spreads over a wide area.

Moreover, since the number of swings of the chemical liquid jet nozzle is set to a number that is not evenly divided by the rotational speed of the head, the waveform locus drawn by the tip of the chemical liquid jet nozzle may shift in the direction of rotation for each rotation of the head. Therefore, the chemical solution can be uniformly sprayed over a wide area.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view when the chemical liquid injection nozzle is vertically oscillated using a crankshaft, Fig. 2 is a schematic cross-sectional configuration diagram, and Fig. 3 is a schematic diagram of the cross-sectional configuration. 5 is a front view, FIG. 4 is a schematic diagram of the structure of a device that uses a corrugated cam for vertical swinging, and FIG. 5 is an example of use. 1... Vertical pipe, 2... Branch chamber, 5...
...Blade rotation nozzle, 6... Chemical liquid injection nozzle, 7,7'... Impeller, 10...
Crankshaft, 19...Curved plunger, 20...
- Swing tube, 23... Main nozzle, 24...
- Sub-nozzle, 31... Roller, 32... Flexible plate, 34... Fusible hose.

Claims (1)

[Scope of utility model registration request] A chemical liquid injection nozzle is installed on a head that rotates in a horizontal plane so as to be able to swing vertically, and the rotational force of the impeller that rotates due to the application of pressure liquid is used to drive both the horizontal rotation of the head and the vertical swing of the chemical liquid injection nozzle. In addition, the number of swings of the chemical liquid injection nozzle is set to a number that is not evenly divided by the rotational speed of the head so that the locus of the chemical liquid injection nozzle is slightly shifted in the rotational direction with each rotation of the head.