JP2000184819A - Nozzle for injecting chemical for tree trunk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nozzle for injecting a chemical for a tree trunk, capable of injecting an injectable chemical into the inside of a tree even on making an injecting hole bored on the tree small, as a result suppressing a damage and stress given to the tree as small, and also preventing rain water, etc., from infiltrating into the inside of the tree even without corking the hole for injection. SOLUTION: This nozzle for injecting a chemical for a tree trunk is a nozzle for injecting a liquid state injectable chemical received from a base end hole 2h into the inside of the tree from tip end hole 4h at the tip end part 4, in which the tip end part 4 is formed as thin and long, and at the side part of the tip part 4, side part injection holes 5h are formed by taking an interval in its longitudinal direction. Thereby, even on making a hole for injection small, it is possible to inject the injectable chemical into the inside of the tree, as a result, suppress the damage and stress given to the tree as small, and also prevent rain water, etc., from infiltrating into the inside of the tree even without corking the hole for injection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a chemical injection nozzle for a trunk. The sudden death of pine is said to be caused by pine bark beetles. The true perpetrator is the pine wood nematode, which is transmitted by the pine wood beetle. The nematode-bearing mantis disperses while gnawing on the epidermis of the pine branch as food, but from this wound the nematode moves through a resin path into a healthy pine tree. The secretion of this nematode disrupts the pine's physiology, causing alteration in the cells of the pine, stopping the secretion of resin as an initial disease, and then withering due to the high temperature and drying in summer. The present invention relates to a tree trunk drug injection nozzle for injecting a liquid injection drug into a tree such as a pine tree in order to prevent the above chain.

[0002]

2. Description of the Related Art Conventionally, in order to prevent nematodes from penetrating healthy pine, preventive application of insecticides to pine forests has been performed. However, preventive spraying of pesticides is likely to cause pesticide poisoning in local residents of pine forests. The local population of pine forests has been exposed to the symptoms of pesticide poisoning: headaches,
You will suffer from symptoms such as nausea and general malaise.

Therefore, recently, a method has been adopted in which an injection agent such as an insecticide is directly injected into a tree. FIG. 5 is an explanatory view of the use of a conventional tree trunk chemical injection nozzle 101.
In the figure, a symbol T indicates a tree. First, a diameter of 6 to 9 mm is applied to the side of the tree T using a drill or the like.
An injection hole S having a depth of about 100 mm is formed. On the other hand, a stem injection nozzle 101 is attached to a bottle B containing a liquid injection agent. The diameter of the stem injection nozzle 101 is 7 ~
8 mm. Then, the stem injection nozzle 101 is inserted into the injection hole S of the tree T. Thereafter, the injection medicine inside the bottle B is injected into the tree T from the tip hole of the bottle B by its own weight.

[0004]

However, if the diameter of the injection hole S drilled on the side of the tree T is large, the conduits and fibers of the tree T are cut, so that damage and stress on the tree T are reduced. There is a problem that the tree T may be large and weak. If the diameter of the injection hole S is large, rainwater or the like enters the inside of the tree T from the injection hole S, and the tree T rots. Therefore, a cork stopper is fitted into the injection hole S to close the injection hole S. However, when the cork stopper is not fitted, the self-healing force of the tree T causes
Although the injection hole S is naturally closed, when a cork stopper is fitted in the injection hole S, the cork stopper hinders the injection hole S from being closed. For this reason, a gap may be formed between the cork stopper and the injection hole S. Eventually, rainwater or the like enters the inside of the tree T from this gap, and the tree T rots. If the diameter of the injection hole S is large, there is a problem that the frequency of decay of the tree T increases even if a cork stopper is fitted into the injection hole S or not.

However, if the diameter of the injection hole S is simply reduced, the tip hole of the injection nozzle 101 is closed and closed by the tar leaking out from the inner peripheral surface of the injection hole S. Is not injected into the tree T, there is a problem that the diameter of the injection hole S must be increased.

In view of such circumstances, the present invention can inject an injection agent into a tree even if the injection hole to be drilled in the tree is reduced, and as a result, damage and stress on the tree can be suppressed. An object of the present invention is to provide a trunk chemical injection nozzle capable of preventing rainwater or the like from entering the inside of a tree without using a cork stopper in the injection hole.

[0007]

According to a first aspect of the present invention, there is provided a tree trunk chemical injection nozzle for injecting a liquid injection chemical received from a base hole into a tree through a distal end hole at a distal end. The tip is formed to be elongated, and side injection holes for injecting the injection medicine are formed in the side of the tip at intervals in the longitudinal direction.
According to a second aspect of the present invention, there is provided a trunk chemical injection nozzle according to the first aspect, wherein the outer diameter of the tip is 1.0 to 3.0 mm.

The operation of the chemical injection nozzle for trunk according to claim 1 will be described. The tip is inserted into the injection hole of the tree, and a liquid injection agent is injected into the tree by the injector. The infused drug then exits not only through the tip hole at the tip but also through the side injection holes. For this reason, even if the tip hole is closed by a dent, injection medicine is injected from the side injection hole,
It can be injected inside trees. Only because the injection agent can be injected into the tree from the side injection hole at the tip portion, the injection hole drilled on the side of the tree can be reduced. The reason for limiting the numerical value of the chemical injection nozzle for trunk according to claim 2 will be described. If the outer diameter of the tip is greater than 3.0 mm, the diameter of the injection hole for inserting the tip into the tree must be increased. For this reason, there arises a problem that the damage and the stress given to the tree cannot be suppressed to a small value. Otherwise, if the outer diameter of the tip is smaller than 1.0 mm, it is necessary to extremely increase the injection pressure for injecting the injected drug into the tree, and the drug bottle of the injector explodes. There is a risk. Moreover, it is difficult to form the tip hole and the side injection hole,
The strength is also weakened, and there is a problem that the tree is broken or bent at the time of insertion / extraction into the hole for injection.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a trunk chemical injection nozzle 1 of the present embodiment. FIG. 2 is a partial cross-sectional view of the tree trunk chemical injection nozzle 1 of the present embodiment. As shown in FIG. 1 and FIG. 2, the chemical injection nozzle 1 for a trunk according to the present embodiment
This is for injecting the liquid injection medicine received from the proximal end hole 2h of the proximal end portion 2 into the tree T through the distal end hole 4h of the distal end portion 4. Chemical injection nozzle 1 for trunk according to the present embodiment
Is made of stainless steel. For this reason, the chemical | medical agent injection | pouring nozzle 1 for trunks of this embodiment is hard to rust, is strong, and does not corrode by an injection | pouring chemical | medical agent. In addition, as a material of the chemical | medical agent injection nozzle 1 for trunks of this embodiment, various materials, such as not only metals, such as stainless steel and brass, but synthetic resins, such as a vinyl chloride and a polycarbonate, can be employ | adopted.

The distal end 4 is thinner and longer than the base end 2. The tip 4 has an outer diameter of 1.0 to 3.0 mm
The reason is described later. A stopper 3 is formed between the proximal end 2 and the distal end 4 in a tapered shape. The stopper 3 is for preventing the tree trunk chemical injection nozzle 1 of the present embodiment from falling into the injection hole S of the tree T.

FIG. 3 is an enlarged view of a main part of FIG. Figures 1-3
As shown in FIG. 5, a plurality of side injection holes 5h are formed on the side of the tip 4 at intervals in the longitudinal direction.
For this reason, the injection medicine injected from the base end hole 2h of the base end part 2 can be injected not only from the front end hole 4h of the front end part 4 but also from the side injection hole 5h. In addition,
The length of the tip 4 may be set to a desired length according to the tree T to be applied. It is preferable that the side injection hole 5h is formed at a position where the injection agent can be injected into the sapwood portion inside the tree T.

Next, the outer diameter of the distal end portion 4 will be described. The outer diameter of the tip portion 4 of the trunk-drug injection nozzle 1 of this embodiment is 1.0 to 3.0 mm. If the outer diameter of the tip 4 is larger than 3.0 mm, the diameter of the injection hole S for inserting the tip 4 into the tree T must be increased. For this reason, there arises a problem that the damage and the stress given to the tree T cannot be suppressed to a small value. Otherwise, if the outer diameter of the tip portion 4 is smaller than 1.0 mm, it is necessary to extremely increase the injection pressure for injecting the injection drug into the tree T, and the injection bottle of the injection device needs to be used. Risk of explosion. Moreover, it is difficult to form the tip hole 4h and the side injection hole 5h, the strength is weakened, and there is a problem that the tree T is broken or bent when being inserted into or extracted from the injection hole S of the tree T. Therefore, the outer diameter of the tip portion 4 is preferably 1.0 to 3.0 mm, and particularly preferably about 2.4 mm. The diameter of the injection hole S drilled in the tree T can be kept small, and the manufacturing is simple. This has the effect of increasing the strength.

Next, the function and effect of the tree trunk chemical injection nozzle 1 of this embodiment will be described. FIG. 4 is an explanatory view of the use of the tree trunk chemical injection nozzle 1 of the present embodiment. As shown in the figure, first, an injection hole S having a diameter of 2.0 to 3.5 mm and a depth of about 100 mm is formed in a side portion of the tree T by a drill or the like. The injection hole S is for inserting the distal end portion 4 of the trunk chemical injection nozzle 1 of the present embodiment, and has a smaller diameter than the conventional injection hole S.

[0014] One end of a pipe P is connected to the base end 2 of the trunk chemical injection nozzle 1 of the present embodiment.
Is connected to an injector (not shown). The syringe is filled with a liquid injection drug. As the injectable drug, various drugs can be adopted as long as they are liquid, such as insecticides, nutrients, and vigor-restoring agents.

Then, the injection agent is injected into the tree T by an injector. Then, the injection medicine exits not only from the distal end hole 4h of the distal end portion 4 but also from the side injection hole 5h. For this reason, even if the tip hole 4h is closed by the dent, the injection medicine is injected from the side injection hole 5h into the tree T.
This has the effect that it can be injected into the inside.
The pressure applied to the injection in the injector may be the atmospheric pressure, or may be pressurization by various means such as LP gas, air, a spring, and rubber.

As described above, the side injection hole 5h of the tip 4
It is because injection medicine can be injected into tree T from
There is an effect that the injection hole S formed in the side of the tree T can be reduced. As a result, damage and stress to the tree can be suppressed small, and the injection hole S having a small diameter is naturally closed, so that rainwater and the like can be formed inside the tree without cork plugging the injection hole S. Can be prevented from invading.

[0017]

According to the chemical injection nozzle for trunks of the present invention, the injection chemical can be injected into the tree even if the injection hole drilled in the tree is small, and as a result, damage and stress to the tree can be obtained. Can be kept small, and it is possible to prevent rainwater or the like from infiltrating into the tree without using a cork stopper in the injection hole. According to the chemical injection nozzle for trunks of the present invention, the diameter of the injection hole drilled in the tree can be reduced, and the manufacturing is simple and the strength is high.

[Brief description of the drawings]

FIG. 1 is a front view of a tree trunk chemical injection nozzle 1 of the present embodiment.

FIG. 2 is a partial cross-sectional view of a trunk chemical injection nozzle 1 of the present embodiment.

FIG. 3 is an enlarged view of a main part of FIG. 2;

FIG. 4 is an explanatory view of the use of the tree trunk chemical injection nozzle 1 of the present embodiment.

FIG. 5 is an explanatory view of use of a conventional tree trunk chemical injection nozzle 101.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 trunk injection nozzle 2 base end 2 h base hole 4 tip 4 h tip hole 5 h side injection hole S injection hole T tree

Claims (2)

[Claims] 1. A nozzle for injecting a liquid injection medicine received from a proximal end hole into a tree through a distal end hole of a distal end portion, wherein the distal end portion is formed to be elongated, and a side portion of the distal end portion is formed. (1) A drug injection nozzle for a trunk, wherein side injection holes for injecting the injection drug are formed at intervals in the longitudinal direction. 2. The chemical injection nozzle for a trunk according to claim 1, wherein an outer diameter of the tip is 1.0 to 3.0 mm.