JPH0418805B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates primarily to a chemical liquid injection container for injecting a chemical liquid into the body of a pine tree.

PRIOR ART Regarding pine trees, the occurrence of pine nematode disease due to the invasion and proliferation of pine nematode has become a problem, and the control measures include:
For example, injecting a chemical solution such as morantel tartrate solution (trade name ``Green Guard'', manufactured by Taito Phizer Co., Ltd.) or levamisole hydrochloride (trade name ``Centyuly'', manufactured by Hodogaya Chemical Industry Co., Ltd.) into the tree body. is effective (Japanese Unexamined Patent Publication No. 198338/1983).

When injecting such chemical solutions, it is effective to apply a certain pressure to the chemical solution in order to prevent deterioration of injection efficiency due to sap (pine resin), and injection devices for this purpose have already been proposed. (the same bulletin). This product has an air inlet with a check valve in the container body that stores the chemical solution,
For example,
A pressurizing device such as a commercially available air pump is connected to the air inlet to pressurize the space inside the container body containing the chemical solution to a predetermined pressure, and then the injection nozzle connected to the chemical solution outlet is inserted into the tree. By inserting the chemical liquid into the chemical liquid injection hole formed in the container body, the chemical liquid can be pressurized and injected into the tree body by the pressurizing force of the pressurized air inside the container body.

Problems to be Solved by the Invention However, when using such conventional technology, when injecting a chemical solution, a pressurizing device such as an air pump must be connected and pressurizing operation must be performed, which makes the work difficult. The problem was that it was extremely complicated. In addition, since the pressurizing force that can be used when injecting a chemical solution depends only on the pressurized air sealed in the space inside the container body, as the chemical solution injection progresses, the amount of drug solution inside the container body decreases and the space volume increases. , the effective pressing force decreases accordingly,
In order to correct this, it is necessary to reconnect the pressurizing device and perform a pressurizing operation, and the workability is also poor in this respect.

SUMMARY OF THE INVENTION In view of the problems of the prior art, an object of the present invention is to generate gas inside the container body using a foaming agent and use this as a pressure source to apply pressure during injection of a chemical solution. All in all, the reduction in pressure can be easily corrected.
It is an object of the present invention to provide a new chemical liquid injection container with extremely good workability.

Means for Solving the Problems The structure of the present invention for achieving the object includes a container body having an injection nozzle at the tip and a first threaded opening at the rear, and a second threaded opening. It has a first cap that is attached to the first opening, and a second cap that is attached to the second opening.
The gist is that a bellows container that expands and contracts toward the inside of the container body is attached, and that the bellows container can be sealed by a second cap.

Further, the container body may be provided with double scales in opposite directions to indicate the amount of the medicinal liquid contained therein.

With this configuration, the medicinal solution can be stored in the container body through the first opening where the injection nozzle is temporarily closed and the first cap is removed. At this time, the bellows container is sufficiently retracted.

When injecting a chemical solution into a tree, the injection nozzle is opened and inserted into a chemical solution injection hole drilled in the tree body. Next, remove the second cap,
If water and a foaming agent are poured into the bellows container through the second opening and the second cap is attached, the gas generated by the injection of the foaming agent will fill the bellows container. It becomes pressurized gas and stretches the bellows container. At this time, since the chemical liquid inside the container main body is indirectly pressurized via the bellows container, the chemical liquid can be pressurized and injected into the tree body with a predetermined pressure.

The double scale in the opposite direction on the container body indicates the amount of drug contained in both when the container body is in a normal position and when it is in an inverted position. The progress of drug injection can be easily checked visually even when the device is in the process of being injected.

The foaming agent to be used must be one that reacts with water, which is highly available, and is harmless to humans and livestock.
It is best to have stable properties, and if a bellows container is not used, it must also be stable against chemical solutions; for example, sodium bicarbonate,
Ammonium carbonate, ammonium bicarbonate, isocyanate ester (isocyanate), citric acid,
Tartaric acid, succinic acid, etc. are suitable.

Example Examples will be described below with reference to the drawings.

The drug solution injection container includes a container body 10, a first cap 21, a second cap 22, and a bellows container 23 as main members (FIG. 1).

The container body 10 is a container made of hard or semi-hard plastic such as polypropylene, and has an injection nozzle 11 screwed onto its tip. That is, the tip of the container body 10 is formed with an opening 10b with a male thread 10a, while the base of the injection nozzle 11 is formed with a female thread 11.
a and a knurl 11b (FIG. 2), and the opening 10b has a skirt 11c inside the injection nozzle 11 and an annular protrusion 1.
1d. Injection nozzle 11
A sleeve 12 made of an elastic rubber material is attached to the distal end portion (FIG. 1).

A scale 10c is formed on the circumferential side of the container body 10, and the scale 10c allows the amount of the drug solution stored inside to be read both in its normal position and in its inverted position. It is a double scale in the opposite direction. A first opening 10e with a large diameter male thread 10d is formed at the rear of the container body 10.

The first cap 21 is attached to the first opening 10e of the container body 10 (FIGS. 1 and 3).
The first cap 21 has a female thread 21a formed on the inner surface of the lower half thereof to be screwed into the male thread 10d on the outer periphery of the first opening 10e, and a knurl 21b formed on the outer surface thereof. A second opening 21d is formed. A seal gasket P for sealing the first opening 10e is attached to the inner surface of the first cap 21.

The second cap 22 is the second cap of the first cap 21.
It is attached to the opening 21d. That is, the second cap 22 has a female screw 22 that is screwed into the male screw 21c.
It is a cap member with a, and on its inner surface,
A ring-shaped portion 22c whose outer circumferential surface gently bulges out and whose maximum outer diameter is slightly smaller than the inner diameter of the second opening 21d is formed in the shape of a skirt.

The bellows container 23 opens to the second opening 21d,
It is attached to the inner surface of the second opening 21d so as to expand and contract toward the inside of the container body 10. The bellows container 23 consists of a main body 23a that is elongated due to its internal pressure, and a head 23b that seals the tip of the main body 23a, and the head 23b is adapted to the shape of the tapered container main body 10. Therefore, it is formed into an almost truncated cone shape.

A neck portion 23c that can be inserted into the inner surface of the second opening 21d is formed at the rear of the main body portion 23a.
The upper end portion of the neck portion 23c is formed to fit into the ring-shaped portion 22c of the second cap 22 from the outside, and an annular rib 23d that bulges outward is formed on its outer periphery. Therefore, when tightening the second cap 22, the annular rib 23d
and its upper portion are the upper end surface of the second opening 21d, the second cap 22, and the ring-shaped portion 22 thereof.
The second opening 21d and neck 23c can be hermetically sealed by being compressed and deformed by c.

When using such a drug solution injection container, first,
The injection belt 11 is temporarily closed, and the container body 10 is closed.
A predetermined amount of chemical solution is stored in the container. The chemical liquid can be dispensed from the large diameter first opening 10e with the male screw 10d at the rear, and the amount of the stored chemical liquid at this time is at scale 1.
Of 0c, the amount can be measured using numbers graduated from the injection nozzle 11 side. After storing the drug solution, the first cap 21 is attached to the first opening 10e to seal the container body 10. However, at this time, the bellows container 23 shall be retracted (solid line in FIG. 1).

At the site, after opening the injection nozzle 11, insert the injection nozzle 11 into the chemical injection hole drilled in the tree.
Insert the tip of the cap 22, and then insert the second cap 22.
is removed, water and a foaming agent are poured into the bellows container 23, and the second cap 22 is reattached. The injected foaming agent reacts with water inside the bellows container 23 to generate gas, and the gas pressure causes the bellows container 23 to expand (double-dashed line in FIG. 1), causing the contents of the container body 10 to expand. Since the volume is reduced, the medicinal liquid in the container body 10 can be indirectly pressurized via the bellows container 23, and pressurized injection of the medicinal liquid can be realized.

Note that only one of water or a foaming agent may be charged into the bellows container 23 in advance, and the other may be charged immediately before the injection operation. Furthermore, if the pressurizing force is insufficient and the chemical liquid injection does not proceed at a predetermined speed, it is of course possible to additionally add a foaming agent.

Moreover, since the bellows container 23 is simply intended to extend inside the container body 10 and reduce its internal volume, its specific shape may be any shape other than that shown in the drawings. However, in order to increase the amount of change in the internal volume of the container body 10 between when it is retracted and when it is extended, it is preferable to use a type that can maintain its shape when it is retracted.

In the above description, it is assumed that the bellows container 23 may be omitted. That is, by directly introducing the foaming agent into the medicinal solution in the container body 10, the medicinal solution can be directly injected under pressure without going through the bellows container 23.

In each of the above embodiments, a predetermined pressing force can be easily obtained by appropriately selecting the type and amount of blowing agent used and controlling the amount of gas generated.

Effects of the Invention As explained above, according to the present invention, there is provided a container body including an injection nozzle and a first opening;
The container includes a first cap that is attached to an opening, and a second cap that is attached to a second opening formed in the first cap, and a bellows container that extends toward the inside of the container body is attached to the second opening. By opening the second opening and pouring water and a foaming agent into the bellows container, the bellows container is expanded using the pressurizing force of the generated gas, and the foaming agent is indirectly introduced through the bellows container. In addition to being able to pressurize and inject chemical liquids at a predetermined pressure,
Since the chemical solution and the foaming agent are separated by the bellows container, there is no direct contact between the foaming agent and the chemical solution. Therefore, even if a foaming agent is used that may react with the components of the chemical solution, This has the excellent effect of completely preventing the risk of causing any adverse effects.

[Brief explanation of drawings]

Figures 1 to 3 show examples, Figure 1 is a partially cutaway explanatory diagram of the entire configuration, Figures 2 and 3 are
FIG. 2 is an enlarged cross-sectional view of the main part of the figure. 10...Container body, 10c...Scale, 10e
...First opening, 11... Injection nozzle, 21...
First cap, 21d...Second opening, 22...
2nd cap, 23... bellows container.

Claims (1)

[Scope of Claims] 1. A container body having an injection nozzle at its tip and a first threaded opening at the rear, and a container body having a threaded second opening and attached to the first opening. 1
The container comprises a cap and a second cap attached to the second opening, and a bellows container is attached to the second opening and expands and contracts toward the inside of the container body. , the bellows container comprises the second
A chemical liquid injection container characterized in that it can be sealed with a cap. 2. The drug solution injection container according to claim 1, wherein the container body is provided with a double scale in a reverse direction for indicating the amount of the drug solution stored.