JPH04915Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention utilizes an ejector function in the nozzle to prevent white rot and to prevent planted seedlings from being damaged by "Kasuka" etc. This invention relates to a two-component mixing spray machine that mixes and sprays two liquids, such as water and a water-miscible agent, and that prevents the water-miscible agent from remaining in the nozzle upon completion of the spraying.

[Conventional technology]

Conventionally, as a means for mixing and dispersing two liquids using a jet pump, for example, as shown in FIG.
The tip of the nozzle 3 is inserted and set near the inside of the tip of the nozzle 3, while an opening/closing knob 5 is interposed in the middle of the supply pipe 4 for supplying the b liquid to be sucked into the inside of the nozzle 3, and the lower end is inserted and set. A structure in which the liquid is immersed in a liquid storage tank 6 for storing liquid b has been proposed.

[The problem that the idea aims to solve]

In the prior art section, when spraying a liquid mixture in which liquid A is water and liquid B is a gelling agent, there is no particular risk that this liquid mixture will solidify;
When the spraying is stopped, the mixture solidifies immediately inside the nozzle 3, causing the nozzle 3 to become clogged, which tends to make it extremely difficult or impossible to eject the mixed liquid from the tip of the nozzle 3 when reusing it. For this reason, the inside of the nozzle 3 is forced to be repeatedly cleaned every time spraying is finished, so it is difficult for the user to handle the process, and the parts of the nozzle 3 are sometimes damaged due to repeated cleaning. There are some concerns and other problems.

This idea was proposed in view of the problems mentioned above, and its purpose is to prevent the water admixture from solidifying in the nozzle after spraying, and to avoid the troublesome cleaning of the nozzle. The purpose is to provide a two-component mixing spray machine that can save labor and time.

[Means to solve the problem]

In order to achieve the above-mentioned purpose, the two-component mixing spray machine in this invention includes a pump, a conduit, an injection gun,
A through hole separate from the through hole formed in this nozzle is bored in a nozzle connected via a jet pipe and equipped with a mixing chamber and a collision plate at the front end, and the front end of the through hole is connected to the mixing chamber. On the other hand, a liquid suction pipe for supplying a water admixture is connected to the rear end of this hole through a three-way hole having an atmosphere communication hole at the front end, and the air communication hole is opened by switching the three-way hole. When the nozzle is opened, the water miscible agent remaining between the mixing chamber and the three-sided pot is discharged from the nozzle.

〔Example〕

An embodiment of this invention will be described with reference to FIGS. 1 and 2.

A pump P driven by a prime mover M such as an electric motor
The suction pipe 11 of is immersed in the liquid storage tank T of the liquid W, while the discharge port 12 of the pump P is communicated with the inlet i of the grip part 14 of the jet gun G via the conduit 13, A through hole h communicating with the inlet i
(The left side is the front and the right side is the rear in FIG. 1.) An on-off valve 15 is interposed at an appropriate location, and this on-off valve 15 is always connected to the through hole by an elastic body (not shown) such as a coil spring. h is placed in a closed state with respect to the jet pipe 18 (described later), but when the lever 16 pivotally attached to the support shaft d implanted in the grip part 14 is pulled rearward (in the direction of the arrow y), the opening and closing valve 15 is retracted and the valve 15 is closed. The hole h is made to be able to communicate with the jet pipe 18. Also, a spout 18 is attached to a nut 17 screwed onto the front end of the grip part 14.
The rear ends are screwed together and connected, and fixed to the front end of the jet pipe 18.
The rear end of the nozzle N is screwed onto the male screw S of the fitted connecting piece 19, and a hole separate from the through hole C is inserted in parallel with the through hole C that is penetrated and drilled in the center of the nozzle N from front to back. A through hole e is drilled, and a guide hole f that is orthogonal to and communicates with the through hole e is drilled in a connecting piece 20 that is screwed onto the nozzle N through a male screw t, and is screwed into the front outer peripheral edge of the nozzle N. At the rear end of the nozzle cap 21, which together form a mixing chamber 36, an impingement plate 22 of a suitable configuration is provided.
The rear end of the nozzle N is pressed and clamped against the intermediate stepped portion of the nozzle N. In addition, the female screw of the opening on one side of the three-way lock K is screwed into the male screw of the connecting piece 20, and the switching arm of the three-way lock K is attached near the tip (lower end in this case) of the rotating arm 24 fixed to the three-way lock K. A lever guide 25 is movably connected to the front end of a control lever L that can be operated with the hands of an operator (not shown), and the lever guide 25 is slidably fitted with the control lever L, and the lever guide 25 is attached to the joint attached to the jet pipe 18. It is rotatably attached to the lever guide 26 and can be held in a fixed position by a set screw j that can be inserted through the lever guide 25. In addition, the front end of the three-way Kotoku K is opened to the atmosphere through an atmosphere communication hole 3.
7, and the female thread carved on the inner peripheral edge of the rear end,
While a male thread carved on the front side of the connecting piece 27 is screwed into the connecting piece 27, one end of the liquid suction pipe 28 made of synthetic resin, for example, vinyl, can be freely engaged and detached from the serrated part carved on the rear outer peripheral edge of the connecting piece 27. At the same time, a lid 30 with a ventilation hole q is screwed onto the outer periphery of the fitting 29 which is fitted in the middle of the liquid suction pipe 28.
is attached to the upper opening of the casing 31 in which the water admixture V is stored. The lower part of the liquid suction pipe 28 is connected to the housing 3.
A holding piece 2 with a U-shaped cross section placed on the bottom of 1
9' in a removable manner, and the clamping piece 2
A weight 32 with a through hole Z is fixed to the lower end of 9' to prevent the liquid suction tube 28 from floating, and an insect pin U which can be freely inserted and removed near the lower end of the liquid suction tube 28 is pulled out as necessary. This makes it possible to separate the liquid suction pipe 28 and the clamping piece 29'. In the figure, 33 is a suction amount adjustment collar, 34 is a spherical grip attached to the rear end of the control lever L, 35 is a locking rod for the lever 16, and r is an "O" ring.

[Effect]

Since this idea has the above-mentioned configuration, the first
In the figure, when the lever 16 is pulled backward (in the direction of the arrow y), the on-off valve 15 is moved back and opened, and the high-pressure liquid e.g. When it flows into the mixing chamber 36 through the pipe 18 and through the through hole C of the nozzle N, negative pressure is generated in the mixing chamber 36, and the large air flows from the atmosphere communication hole 37 of the three-way kettle K through the through holes f and e. Air under atmospheric pressure is drawn into the mixing chamber 36, and the mixture of air and water in the mixing chamber 36 is ejected toward the collision plate 22. (At this time, the control rod L is at the solid line position in FIG. 1.) Then, when the control rod L is pushed forward and set to the chain line position, the liquid suction pipe 28 and the nozzle N side are connected via the three-way control rod K. Therefore, the water admixture V in the housing 31 passes through the through hole Z, the liquid suction pipe 28, the three-way pot K, and the through holes f and e, and then enters the liquid W under high pressure (in this case, water) in the mixing chamber 36. ), the liquid W is ejected and comes into contact with the collision plate 22, and the liquid W is further atomized. When the water admixture V is stopped being sucked into the nozzle N side, when the Kotuku operation stick L is returned to the solid line position in Fig. 1, the atmosphere communication hole 37 of the three-way Kotuku K is opened to the atmosphere. Atmospheric air is sucked into the nozzle N side through the communication hole 37, and the air is sucked into the nozzle N side, and the air is sucked into the three-way kettle K and the mixing chamber 3.
Since the water miscible agent V remaining between the nozzle N and 6 is discharged outward from the front end of the nozzle N, there is a risk that the water miscible agent will solidify inside the nozzle N, Mikata Kotoku K, etc. after the spraying operation is completed. It is always kept under a unclogged condition. Therefore, even when using it again,
The mixture of liquid and water miscible under high pressure is smoothly ejected from the front end of the nozzle without any hindrance, resulting in "white color".
By spraying odor-filled chemicals that are infested with moths and on seedlings, etc., the chemicals harden and become white.
It is possible to prevent damage caused by ``Kasuka'' and ``Kasuka''.

The amount of water admixture V supplied to the nozzle N can be easily adjusted by moving the suction amount adjustment collar 33 above the Kotuku operating rod L, and when the collision plate 22 is held at the chain line position in FIG. , a liquid mixture of the liquid W and the water miscible agent V can be injected directly below the nozzle N.

[Effects] According to this invention, the water admixture suction pipe is connected to the nozzle connected to the pump through a three-way connector, and the pump side liquid, such as water, is mixed with the water admixture in the mixing chamber at the front end of the nozzle. By mixing, spraying and solidifying in the desired direction, it is possible to protect walls, seedlings, etc. from damage caused by "white ants" and "kasoka". By communicating the atmosphere to the mixing chamber, all the water admixture remaining between the three-way pot and the mixing chamber is discharged to the outside from the nozzle, so there is no concern that the liquid passage in the nozzle or the three-way pot will become clogged, and compared to the conventional method. After the spraying work is completed, the water admixture is solidified by mixing with the liquid, which eliminates the time and effort required to clean the inside of the nozzle and liquid delivery pipe every time the work is done. When the sprayer is located away from the worker, the three-way switch can be switched quickly and easily by the worker, ensuring reliable spraying and eliminating the risk of direct exposure to or inhalation of the chemical.
Any number of people can work safely and without any sense of complication, and since the overall structure is simple, it can be produced robustly and inexpensively, and has practical benefits such as being able to be widely supplied to general users. It is something that you have.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of the main part of the proposed product, with a part cut away.
FIG. 2 is a view taken along the - line arrow in FIG. 1, and FIG. 3 is a sectional view of the main part of a conventional two-component mixing spray machine. G...Injection gun, K...Three-way knob, L...Kottoku control stick, N...Nozzle, P...Pump, W...
...liquid, c, e...through hole, 13...conduit, 18...
... Jet pipe, 22 ... Collision plate, 24 ... Rotating arm, 28
...Liquid suction pipe, 36...Mixing chamber, 37...Atmospheric communication hole.

Claims (1)

[Scope of claims for utility model registration] (1) Pump P, conduit 13, injection gun G, injection pipe 1
This nozzle N is connected to the nozzle N which is connected to the nozzle N through a
A separate through hole e is bored from the through hole C formed in the
The front end of the through hole e faces the mixing chamber 36, while the rear end of the through hole e has an atmosphere communication hole 3 at the front end.
Water miscible agent V through the formed three-way joint K of 7
The water admixture V remaining between the mixing chamber 36 and the three-way socket K is released from the nozzle N by connecting the liquid suction pipe 28 that supplies the liquid and opening the atmosphere communication hole 37 by switching the front end three-way socket K. A two-component mixing spray machine. (2) A utility model registration claim described in paragraph 1, in which a rotary arm 24 of the three-way knob K is connected to a knob operating lever L, and the three-sided knob K can be switched by remote control via the operating lever L. Two-component mixing spray machine. (3) The scope of the utility model registration claim, in which the liquid W from the pump P and the water admixture V are mixed in the mixing chamber 36, and the mixture is atomized by contact with the collision plate 22. The two-component mixing spray machine according to item 1.