JPH0236369Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a chemical pressure injection device for injecting a pesticidal agent into the trunk of a pine tree damaged by pine weevil.

(Prior Art) Currently, the pine weevil is still rampant, and the damage caused by pine wilt is rapidly spreading over a wide area, creating an extremely alarming situation.

The insect damage generally called pine weevil is caused by a coexisting relationship between two species: the pine beetle and the insect that carries it, the pine beetle. It is parasitic on the spotted longhorn beetle and is carried from tree to tree, and when the longhorn beetle eats young pine leaves,
It has been revealed that they invade the trunk of a pine tree through a biting wound, suck up nutrients from the pine tree, and reproduce, causing pine wilt. Currently, to control pine weevil, you can cut down the damaged pine tree and incinerate it, or use drugs known to be effective for exterminating pine weevil (e.g. MEP agent, etc.).
A method of controlling the disease is the aerial spraying of NAC agents (such as NAC agents).

(Problems to be solved by the invention) However, felling and incineration using the above-mentioned conventional technology causes widespread damage from pine weevil as is currently the case.
Since there are so many damaged trees, it is extremely difficult to completely implement the method.Also, aerial spraying of chemicals is effective in exterminating the pine beetle, but it is effective against the pine beetle that has invaded the trunks of the pine trees. There were other problems, such as not being effective in exterminating insects, but also killing beneficial insects with the chemicals being sprayed.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention has been proposed in Utility Application No. 57-023422 (medication injection device) and Utility Application No. 57- No. 142303 (drug injector), the outer circumferential body for inserting a valve body, which has a pair of locking protrusions at symmetrical positions on the outer circumferential surface of the intermediate portion, is attached to the outer surface of the upper container body at right angles. an upper container body with a valve body having a built-in valve body provided with a valve shaft that closes a drug passage by a packing that is slidably fitted in an axial direction at the center of the outer circumferential body;
The valve body is inserted into the rear end surface of the nozzle body, which has a threaded shaft connected to the front part of the truncated cone-shaped connecting body, and has a nozzle hole for ejecting medicine that extends through the center in the axial direction. The front surface of the lid plate of the locking cap body is a cap-shaped cap that is removably attached to the outer circumferential body and has elongated holes in the radial direction for locking the locking protrusions at appropriate positions on the peripheral wall plate. It consists of a fixed nozzle fitting, and a locking cap body is crowned on the outer circumferential body part for inserting the valve body,
The locking protrusion is engaged in the elongated hole for protrusion engagement, and the valve stem is pushed backward and slid to curve the packing and open the drug passage.The configuration is shown in the figure below. To explain by way of example, as shown in FIGS. 1 to 3, the upper container main body has a circular cross section, a hollow portion 1 that is open at the bottom, and a lower container fitting portion 2 on the inner circumferential surface of the lower end. 3 is an outer circumferential body part 4 for inserting a valve body, which has a circular longitudinal section on the outer surface and has an appropriate length.
protrudes in a direction perpendicular to the upper container main body 3,
The outer peripheral body portion 4 is provided with stepped bushing insertion holes 5 in order from the front to the rear with the axis center line Y-Y as an axis.
A spring insertion hole 6 having an appropriate size and smaller diameter than the insertion hole 5.
Furthermore, a medicine passage hole 7 having a small diameter and whose rear end is connected to the cavity 1 of the upper container main body 3 is provided in communication with the medicine passage hole 7, and a locking protrusion is provided on the outer circumferential surface of the intermediate portion of the outer circumferential body 4 for inserting the valve body. The upper container body 9 is formed by integrally molding the parts 8, 8 from synthetic resin or the like so as to protrude at symmetrical positions.

The valve stem 10 is provided with a ring-shaped packing fitting groove 11 on the outer peripheral surface of the intermediate rear part, and the valve stem 10 has the following features:
A drug passage hole 12 that opens forward about the shaft center line Y-Y and has a slightly smaller diameter at the rear extending to an appropriate distance from the middle part is formed, and the groove 11 for fitting the packing and the rear part of the drug passage hole 12 are formed. The holes 13 are connected to each other by the small holes 13, and an annular disk-shaped packing 14 made of an elastic material is inserted into the packing fitting groove 11.
A valve body 15 is formed in which the outer openings of 3 and 13 are fitted in a closed state, and a valve shaft sliding hole 16 is provided in which the valve shaft 10 is slidably and loosely fitted forward from the packing fitting groove 11 of the valve shaft 10. The valve body 15 with the stepped bush 17 loosely fitted onto the valve stem 10 is inserted into the outer cylindrical body part 4 for valve body insertion, which accommodates the coil spring 19 in the spring insertion hole 6.
The packing 14 is positioned in the gap 18 between the rear end surface of the stepped bushing insertion hole 5 and the rear end surface of the stepped bushing 17, and the repulsive force of the coil spring 19 constantly pushes the valve stem 10 forward. Then, the stepped bushing 17 is fitted into the stepped bushing insertion hole 5 with the front end of the valve stem 10 being a protruding shaft portion 21 that protrudes forward by an appropriate distance from the front surface 20 of the stepped bushing 17 to open the valve. An upper container body A with a body is configured.

From FIGS. 4 and 5, the rear part is the hexagonal body part 22,
The middle part is a circular body part 23, and a screw 25 of a suitable length is screwed on the outer peripheral surface with a smaller diameter than the circular body part 23 through a truncated cone-shaped connecting body part 24 in front of the circular body part 23. A nozzle hole 27 for ejecting medicine is formed through the threaded shaft portion 26 so as to be continuous with each other, and a nozzle hole 27 for ejecting medicine is formed through the shaft center line Y-Y, and the rear end opening is formed at the same center as the nozzle hole 27 and has a suitable depth. Valve shaft front insertion hole 2
8, a packing fitting hole 29 is provided around the rear end circumference, and a packing O-ring 30 is fitted into the fitting hole 29 to form a nozzle body 31. 4 and 5, it has a peripheral wall plate part 32 with an inner diameter R' slightly larger than the front outer diameter R of the outer peripheral body part 4 for inserting the valve body, and the front part is covered by a cover plate part 33. The integrally molded locking cap body 34 has a through hole 35 in the center of the lid plate portion 33 through which the front part of the valve stem 10 can pass, and the inner surface 36 of the lid plate portion 33 of the locking cap body 34 The front surface 37 of the outer circumferential body portion 4 for inserting the valve body
In the inserted state so that [the front surface 20 of the stepped bush 17 and the front face 20] are in contact with each other, the peripheral wall of the locking cap body 34 corresponding to the locking protrusions 8, 8 provided on the outer peripheral body 4 for inserting the valve body Elongated holes 38, 38 for engaging protrusions in the radial direction are symmetrically provided in the plate portion 32, and a notch 39 is provided at each end of the elongated holes 38, 38 toward the rear for insertion of the protrusion for axial locking. , 39 are provided so as to communicate with each other, and the rear end surface of the nozzle body 31 and the front surface of the lid plate part 33 of the locking cap body 34 are fixed so that the valve shaft front insertion hole 28 and the through hole 35 are aligned, and the nozzle fitting is fixed. This is a drug pressure injection device consisting of an upper container body A with a valve of the present invention, a lower container body C that fits into the lower container body fitting part 2 of the container body A, and a nozzle device B. be.

(Function) In the free state, the above-mentioned upper container body A with a valve body has a cavity 1 of the upper container main body portion 3, a drug delivery hole 7 formed in the outer peripheral body portion 4 for inserting the valve body, and a spring insertion hole. 6 and a small hole 13,1 bored in the valve stem 10.
3. Although the drug passage consisting of the drug passage hole 12 is blocked by the small holes 13 and 13 being closed by the packing 14 (see Fig. 2), the valve stem 10 is pushed backward and the coil spring 14 is compressed. When the bushing 14 slides inside the valve shaft sliding hole 16 of the stepped bushing 17, the bushing 14 curves and moves into the small hole 1.
3 and 13 are opened, and the drug passage is in communication (see Fig. 7). When the force applied to the valve stem 10 is removed, the valve stem 10 returns to its original position, and the packing 14 returns to its original shape and closes the small holes 13, 13 again. The action of the drug injection device of the present invention will be explained below based on the state in which the drug injection device of the present invention is used. Figures 6 and 8 show the trunk of a pine tree damaged by pine weevil. T ground GL
Drill a pilot hole 40 of a smaller diameter than the threaded shaft portion 26 of the nozzle tool B approximately horizontally to an appropriate depth at a location above the screw shaft portion 26 of a more appropriate size (5 cm to 10 cm is suitable), and insert the screw shaft portion into the opening of the pilot hole 40. 26 and the hexagonal body 22
Apply a wrench or the like to the top of the tree, and screw in while rotating until the truncated cone-shaped connecting body 24 is almost buried in the tree trunk T.
Fix it so that part 2 acts as a packing.

Fitting the lower container body C into the lower container body fitting part 2,
The outer circumferential body part 4 for inserting the valve body of the upper container body A with a valve body, the inside of which is filled with a drug effective for exterminating pine weevil and carbon dioxide gas under high pressure, is fixed to the tree trunk T as described above. The locking projections 8, 8 are inserted into the locking cap 34 through the notches 39, 39, and the projections 8, 8 are inserted into the corresponding projection engagement elongated holes 3.
8 and 38, and when the lower container body C is engaged in a vertically upward position, the protrusion 21 of the valve shaft 10 is inserted into the valve shaft front insertion hole 28 of the nozzle body 31. Fitted through the O-ring 30 and the valve stem 10
The distal end surface is pressed against the front surface of the valve shaft front insertion hole 28 and is pressed, compressing the coil spring 19 and moving rearward, bending the packing 14 and opening the small holes 13, 13 drilled in the valve shaft 10. is opened, and the high-pressure gas containing the drug filled in the container passes through the drug delivery hole 7, the spring insertion hole 6, the small holes 13, 13, and the drug passage hole 12, and then enters the drug ejection nozzle hole of the nozzle body 31. The chemical-containing gas is discharged into the tree trunk T through 27 and the tree absorbs nutrients, and the chemical-containing gas permeates through the tree trunk and branches and leaves to exterminate the pine tree nematode living inside the tree, and the carbon dioxide gas etc. It gives activity to.

In addition, if the injection of the medicine is to be interrupted, the upper container body A with a valve body can be removed from the nozzle fitting B.

(Effects) The present invention, which has the above configuration and function, has a simple structure and is extremely easy to operate during use. Since the high-pressure gas containing the drug injected into the device is completely prevented from leaking to the outside, there is no waste of drugs, etc., and the device can be used repeatedly by refilling the gas containing the drug, making it extremely economical. It has certain advantages.

In addition, this invention injects a gas containing a chemical directly into the tree, allowing it to permeate and exterminate the pine tree nematode, while also activating the pine tree with high-pressure gas such as carbon dioxide, which is extremely effective. In addition, compared to conventional pine weevil control methods that involve cutting down and incinerating damaged pine trees or spraying chemicals in the air, this method significantly reduces labor and cost, and also prevents fires, kills beneficial insects, and harms the health of surrounding residents. There is no risk of secondary disasters, and the present invention activates trees by filling the container with nutrients and high-pressure gas that are effective for tree growth, instead of using pesticides to kill pine weevil insects. This device has excellent practical effects, such as being able to be used as a high-pressure drug injection device for nutritional supplementation.

[Brief explanation of drawings]

The figures show an embodiment of the present invention. Figure 1 is a longitudinal sectional view of the upper container body with a valve body, Figure 2 is an enlarged sectional view of the main part of Figure 1, and Figure 3 is the outer circumference for inserting the valve body. body part P
-P sectional view, Fig. 4 is a longitudinal sectional view of the nozzle tool, Fig. 5
The figure is a left side view of the nozzle tool, FIG. 6 is a vertical cross-sectional view of the nozzle tool attached to the upper container body with a valve body, and FIG.
The figure is an enlarged sectional view of the circumference of the valve body in FIG. 6, and FIG. 8 is a schematic diagram showing the state of use of the present invention. A...Upper container body with valve body, 3...Upper container main body, 4...Outer circumferential body for inserting the valve body, 5...Stepped bush insertion hole, 6...Spring insertion hole, 7...Drug Conveyance hole, 8... Locking protrusion, 9... Upper container body, 10... Valve stem, 11... Recessed groove for packing fitting, 12... Drug passage hole, 13... Small hole, 14 …
... Packing, 15 ... Valve body, 16 ... Valve shaft sliding hole, 17 ... Stepped bushing, 19 ... Coil spring, B ... Nozzle fitting, 22 ... Hexagonal body, 2
3... Circular body, 24... Connection body, 25... Screw, 26... Screw shaft, 27... Nozzle hole for drug ejection, 28... Valve body front insertion hole, 31... Nozzle Main body, 32... Peripheral wall plate section, 33... Lid plate section, 35
...Through hole, 38...Elongated hole for engaging protrusion, 39...
Notch.

Claims (1)

[Scope of utility model registration request] An outer circumferential body part 4 for inserting a valve body, which has locking protrusions 8, 8 provided at symmetrical positions on the outer circumferential surface of the intermediate part, is provided on the outer circumferential surface of the upper container main body part 3 in a perpendicular direction, and the outer circumferential body part A stepped bushing insertion hole 5, a spring insertion hole 6, and a drug delivery hole 7 whose rear end opens into the container body 3 are provided sequentially from the front about the axis center line Y-Y of 4. In the holes 5 and 6 of the upper container body 9, a ring-shaped packing fitting groove 11 is provided on the outer circumferential surface of the intermediate rear part, and a drug passage hole 12 is opened at the front with the axial center line Y-Y as the axis. The rear part of the packing fitting groove 11 and the drug passage hole 12 is formed into a small hole 1.
A valve body 1 in which an annular disk-shaped packing 14 is fitted into the packing fitting groove 11 of the valve shaft 10 which communicates with the valve stem 10 through the holes 13 and 13, so as to close the small holes 13 and 13.
5, the rear end of the valve shaft 10 is pressed into contact with the coil spring 19 housed in the spring insertion hole 6, and the front end is in pressure contact with the stepped bush insertion hole 5 of the outer peripheral body part 4 for inserting the valve body.
an upper container body A with a valve, which is slidable in the valve shaft sliding hole 16 of the stepped bush 17 fitted therein, and is disposed inside so that the tip of the valve shaft 10 protrudes from the front surface of the stepped bush 17; A screw shaft portion having a rear portion as a hexagonal body portion 22, a middle portion as a circular body portion 23, and a screw 25 screwed onto the outer peripheral surface of the circular body portion 23 through a truncated cone-shaped connecting body portion 24. 26, a nozzle hole 27 for ejecting medicine is provided through the nozzle hole 27 with the axis center line Y-Y as an axis, and the rear end opening of the nozzle hole 27 is formed into a valve shaft tip insertion hole 28 of an appropriate depth. The rear end surface has a cylindrical through hole 35 through which the front part of the valve shaft 10 is inserted through the center of the lid plate part 33, and a through hole 35 for inserting the valve body of the upper container main body part 3 into the middle part of the peripheral wall plate part 32. Elongated holes 38, 38 for engaging protrusions in the radial direction corresponding to the locking protrusions 8, 8 provided on the outer peripheral body portion 4 are provided, and protrusions facing rearward are provided at respective ends of the elongated holes 38, 38. The front surface of the lid plate of the locking cap body 34, which is detachably attached to the outer circumferential body part 4 for inserting the valve body having notches 39, 39 for insertion, is inserted into the through hole 35 and the front insertion hole of the valve shaft of the nozzle body 31. Nozzle tool B with 28 aligned and fixed
The cap body 34 is mounted on the outer circumferential body portion 4 for inserting the valve body, the locking protrusions 8, 8 are engaged with the elongated holes 38, 38 for engaging the protrusions, and the tip of the valve stem 10 is Press the tip end surface of the protrusion 21 with the front surface of the valve shaft front insertion hole 28 to compress the coil spring and insert the valve shaft 1.
This drug pressure injection device is characterized in that the small holes 13, 13 provided in the valve stem 10 are opened by sliding the valve 0 backward and bending the packing 14.