JPH11300250A - Blasting type liquid agent spraying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease holding and operating force and to decrease blasting loss by connecting an input shaft of a fan unit provided with a fan and a liq. agent atomizing device in a cylindrical body with an output shaft of a motor unit through a drive shaft consisting of a flexible shaft in a blasting type liq. agent spraying machine whose target is agricultural products, etc. SOLUTION: A blasting type liq. agent spraying machine carried on the back consists of a blasting and atomizing unit 1, a motor unit 2 and a flexible shaft 3 connecting them and a shoulder hooking belt 5 is mounted on a carrying frame 4. The blasting and atomizing unit 1 is provided with an axial flow type fan and a chemicals spraying device in a cylindrical body with a tapered- off shape and power is transmitted to a fan from a motor 13 through the flexible shaft 3. In addition, the cylindrical body of the blasting and atomizing unit 1 is mounted respectively with a blasting pipe 9 on its apex, a handle 10 on its top face and a nozzle adjusting nob 12 of the liq. agent atomizing device on its side face. It is possible thereby to freely operate the spraying direction under a condition where the blasting and atomizing unit 1 is easily held with both hands.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower type liquid sprayer useful mainly for spraying a chemical solution or the like on agricultural products, fruit trees and the like.

[0002]

2. Description of the Related Art There are various types of liquid sprayers used for spraying chemicals for controlling and preventing pests and insects, from large power sprayers to small sprayers. Depending on the purpose of spraying, the target, and the type of medicine, the spray nozzle that is most suitable from the viewpoint of spraying efficiency and control effect is selected and used. Mainly, pest control and spraying of chemicals for prevention and control on plantations (hereinafter referred to as “controlling”) are in heavy working conditions and unhealthy working environments due to the long working time and the adhesion of chemicals to workers' bodies. It is a fact.

[0003] In order to improve the working environment for spraying drugs,
Although there is a speed sprayer that uses a blower to shorten the time required for pest control, the suitability is poor and widespread in Japan, which is generally a large-scale machine and often densely cultivates various kinds of crops on slopes. It cannot be said that it is. There is a portable mist machine which is small and has a high performance in order to solve such a drawback.

[0004] A blower type portable mist machine, that is, a shoulder type blower type liquid sprayer is a compact type in which a motor, a blower, and a spray nozzle are integrally connected by a straight pipe, and is a general-purpose machine which can cope with slopes and various crops. It is a liquid sprayer which is extremely easy to use and has high performance and improved workability (for example, JP-A-9-289857). There is also a control device in which a prime mover and a blower are integrated into a backpack frame, and a blowout nozzle is provided at an opening of a front end of the blower tube through a curved tube. For example, a control device of that type is found in Japanese Patent No. 2521508.

[0005]

These are quite high perfection as a backpack-type blown liquid sprayer.
In the former straight pipe connection type, when the spray direction is changed up, down, left and right depending on the spray target, an extra force is required for the holding operation, and reduction thereof is desired. In the latter type, the holding operation force has been improved, but when the blowing tube is long and the bending radius is small due to the holding posture, the blowing loss changes greatly, and the swirling air that enhances the diffusion effect is improved. The flow may not be sufficient. That is, the problem to be solved by the present invention is to reduce the holding operation force of the rigid straight pipe connection type of the output shaft of the prime mover unit and the input shaft of the blower atomizing unit and to reduce the blower loss when the blower is separate from the atomizing unit. It is an object of the present invention to obtain an improved blower type liquid sprayer.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made to solve such a problem, and its structural feature is that a blower and a liquid atomizer are provided in a tapered cylindrical body. A blower atomizing unit and a motor unit mounted on a backpack frame are provided separately, connected and assembled with a conduction shaft consisting of a flexible shaft, so as to drive the blower,
A liquid sprayer capable of spraying a liquid with blown air.

Here, the liquid medicine atomizing device comprises a spray spray pattern variable nozzle mounted inside the cylinder, a nozzle adjustment knob mounted outside the cylinder, and connecting means for these.
The spray pattern can be variably adjusted externally.

In addition, a hanging fulcrum is installed on the casing of the blower atomizing unit to serve as a fulcrum when the spray direction of the blower atomizing unit is changed and to prevent a fall when the holding is released. It has a function of adjusting the total length up to the nozzle tip, and can be held on the shoulder with an elastic shoulder belt to suppress vibration transmission during work.

[0009] The prime mover unit usually comprises a gasoline engine and a gasoline tank, which are preferably mounted on a backpack frame and carried on the back of the worker with a shoulder strap.
It may be mounted on a frame with wheels and placed on the floor or movable.
There is also a method in which a motor unit is mounted together with a drug tank on a truck of the drug tank.

[0010]

FIG. 1 is an overall perspective view showing an example of a blower type liquid sprayer, and FIG. 2 is a perspective view showing a state of use thereof. As is apparent from these drawings, the blower type liquid sprayer according to the present invention comprises a blower atomizing unit 1, a motor unit 2, and a flexible shaft 3 connecting these units, and a backrest frame 4 of the motor unit 2 has a shoulder strap. 5 is equipped.

Here, in the blow-off atomizing unit 1, an axial-flow blower as a blower 7 and a liquid-material spraying device 8 are housed in a tapered cylindrical body 6. A jet tube 9 is mounted on the tip of the tapered cylindrical body 6, a handle 10 is mounted on the upper surface, and a nozzle adjustment knob 12 for adjusting the spray pattern of the nozzle 11 of the liquid atomizer 8 is provided on the side surface in the form of a rotary handle. Installed.

Power is transmitted from the prime mover 13 to the blower 7 by the flexible shaft 3. Therefore, as shown in FIG.
The spraying direction is freely changed in accordance with the change of the spraying target object while the holding unit is held by the shoulder belt 14 and both hands. At this time, the motor unit 2 is independent, and the weight and vibration of the motor are affected by the holding operation force. Since no burden is applied, the spraying control work can be performed easily.

The structure of the connecting portion 15 between the prime mover unit 2 and the flexible shaft 3 may be a known backpack type brush cutter. A connecting portion 16 between the blower atomizing unit 1 and the flexible shaft 3 is formed of a pipe housing, and a handle 17 and a throttle lever 18 of a motor are provided. Therefore, the owner of the backpack-type brush cutter has the convenience that the prime mover unit 2 can be used as both a mowing machine and a pest control work if only the blower atomizing unit 1 is prepared.

FIG. 3 is a longitudinal sectional view of the blower atomizing unit 1 and shows an internal structure of the cylindrical body 6 having a tapered shape. The base of the cylindrical body 6 having a tapered shape accommodates an axial blower 7, and a flexible shaft is connected to a transmission shaft 19 in a pipe housing. To the nozzle 11 of the
Form a jet of wind within. The liquid material guided through the liquid material pipe 20 of the nozzle 11 of the liquid material atomizing device 8 is ejected from the nozzle 11 by the jet wind. The nozzle 11 is a spray pattern variable nozzle, and the rod 21 provided at the center thereof is rotated to move back and forth, and can be changed to a rod-like mist for ejecting at a narrow angle, a conical mist for ejecting at a wide angle, or the like.
In the case of the former rod-shaped mist, the injection pipe 9 can be sprayed to a long distance by moving it forward to increase the wind speed, and when the latter is moved backward in the case of the conical mist injection, the mist particles can be made finer by the blowing air. It becomes atomized and the diffusion effect is improved.

The selection of the spray pattern is performed by the nozzle adjustment knob 12. FIG. 4 shows that the nozzle adjustment knob 12 has a rotating handle.
Reference numeral 22 denotes a state in which the liquid material atomizing device 8 is connected to the atomization adjusting rod 21 by the flexible shaft 23. As described above, when the nozzle adjustment knob 12 is provided near the handle 17, the spray pattern can be freely adjusted and changed during the spraying operation.

Therefore, when spraying at a long distance or at a high place, the reaching distance is lengthened by a narrow angle spray, and when spraying at a short distance, or when a fine particle spray is required, an adjustment to a wide angle spray is provided on the outer side of the cylinder 6. The handle 22 can be freely adjusted and changed during spraying work, so there is little movement during pest control work, and it can be set to the optimum spray spray pattern according to the type of target object and medicine, so it is used for many purposes It is possible.

FIG. 5 shows another example of the blower-type liquid sprayer. Instead of the axial blower of the blower 7 in FIG.
It uses a centrifugal blower. In this case, the flexible shaft 19 for power transmission of the pipe-shaped housing and the axis of the centrifugal blower are orthogonal to each other.
Connected via such as.

[0018]

As described above, since the blower atomizing unit and the prime mover are made independent and assembled with the flexible shaft, the weight, vibration and burden of the prime mover do not affect the holding and operating force. Work becomes easier. In addition, since the blower and the spray nozzle are an integrated unit, the blower airflow is constant even if the working posture changes, and the spray performance is stable without changing the spraying performance. The overall length is short, and even for branches and leaves with a low height above the ground, the prime mover does not interfere with the ground and can be sprayed upward from the bottom, satisfying both that the chemical adhesion rate to the leaf back with high control effect is improved Thus, various excellent workability improvements and pest control effects were obtained.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a blowing-type liquid agent sprayer.

FIG. 2 is a perspective view showing a use state of the blower type liquid sprayer.

FIG. 3 is a vertical cross-sectional view of a blow atomizing unit.

FIG. 4 is a vertical sectional view of a nozzle adjustment knob.

FIG. 5 is a side view showing another example of the blow atomizing unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 blower atomizing unit 2 motor unit 3 flexible shaft 4 backpack frame 5 shoulder band 6 cylinder 7 blower 8 liquid atomizer 9 injection tube 10 handle 11 nozzle 12 nozzle adjustment knob 13 motor 14 shoulder belt 15 connecting part 16 connecting part 17 Handle 18 Throttle lever 19 Flexible shaft 20 Liquid tube 21 Rod 22 Rotating handle 23 Flexible shaft 24 Bevel gear case

Claims (1)

[Claims] 1. A transmission shaft comprising a flexible shaft, wherein a blower atomizer unit input shaft provided with a blower and a liquid material atomizer in a tapered cylindrical body and an output shaft of a motor unit mounted on a frame. Blower type liquid sprayer that is connected and assembled.