KR20150108249A - Hermetic pressure type injector - Google Patents

Abstract

The present invention relates to a hermetic pressure type injector for a stem of a tree which particularly includes: an agent solution container (100) which includes a compressed container insertion unit (130), arranged between an outer wall (110) and an inner wall (120) on which a pair of hanging grooves are placed apart from each other to have a certain gap, an injection blocking film (150), arranged on a space between walls of an injection tube (140) formed to be integrated with a front end portion, and an opening, which is a rear side; an agent solution container sealing cover (200) which includes a punching needle guiding tube (210), which has a front end portion closed by a guiding tube blocking film (211) and protrudes far toward an injection blocking film (150), and is integrally attached to an circumference of an opening of a rear side of the agent solution container (100) to prevent agent solution from leaking to the outside; and a compressed container (300) which includes hanging protrusions, formed on an outer side to have a gap, to be hung by hanging grooves, is joined with the compressed container insertion unit (130), and includes, on the center, a punching needle (310), which has a flow channel groove (311), formed to have a long length in a lengthwise direction and is located close to the guiding tube blocking film (211) of the punching needle guiding tube (210) to punch the guiding tube blocking film (211) and the injection blocking film (150) in order. When the compressed container is pressed, the agent solution is smoothly injected by pressure of compressed air. When work in a large scale is performed on trees on the streets, forests, and parks, work efficiency of the hermetic pressure type injector is excellent and costs for the work is low. In addition, deterioration of ingredients of the agent solution can be prevented because there is no concern that the ingredients of the agent solution leak to the outside even when the agent solution is stored in the agent solution container for a long period of time.

Description

[0001] The present invention relates to a hermetic pressure type injector,

The present invention relates to a hermetic pressure type water injector, and more particularly, to a hermetic pressure type water injector in which an injection tube is provided with a compression cylinder on the bottom surface of a chemical solution bottle, Which is capable of increasing the efficiency of large-scale operation in many forests, parks, and the like, in which a large number of roadside trees and trees of the roadside are smoothly supplied to the trees without any fear of being easily exposed to the trees.

In general, trees are easily diseased due to pollution caused by the development of various industries and environmental changes of the soil, or due to various insect pests, or are easily weakened when various inorganic nutrients required for growth of trees are not supplied smoothly from the soil, In the worst case, the tree is finally destroyed.

Therefore, in order to prevent trees from becoming diseased, weakened or damaged, it is necessary to properly supply medicines such as various medicines, insecticides or nutrients at a suitable time so that the trees can grow healthy.

As a method of injecting the chemical liquid for this purpose, there are a leaf surface spraying means for spraying the chemical liquid on the leaves of the tree, an after spraying means for injecting the chemical solution through the injection hole after forming the injection hole with a certain depth toward the inside of the stem of the tree, Is widely used.

Herein, the water control means is classified into a closed type pressure water injector system and an inflow water injection bottle system.

Among them, the infusion type is considered to be injected into the hole of the tree through the infusion tube naturally under the atmospheric pressure, which is selected according to the season or species. For example, hardwoods can be easily injected with water only if there is a difference in time even if the infestation is considered irrespective of the season.

However, in the case of coniferous trees such as pine trees, since the activity of the resin (resin), which is a substance called "pine" in the pine tree, is stopped during the winter season from November to February, the chemical solution is injected well even when using the inflow- Since the resin (resin) is concentrated on the wound area to protect the area when the wood surface is damaged from February to November, it is difficult to supply the chemical solution due to the infiltration of the inflow water, and in this case, It is possible to inject the chemical solution.

As a prior art of such a pressurized water injector, there has been proposed a method of injecting water into a pressurized water injector of a tree plant, as disclosed in Korean Patent Publication No. 10-2006-0109385 (published on October 20, 2006) (Hereinafter referred to as " Prior Art 1 ").

The prior art 1 constitutes a support wall having a guide portion formed outside the side wall so as to be able to be inserted while enclosing the outer wall of the container body inside and outside the container body and a groove is formed on both ends of the end portion of the insertion portion, And the outer wall of the container body is supported by the side wall and the supporting wall so that the outer wall is prevented from being opened under any circumstances so that leakage of the container can be prevented. When the insertion portion of the injection tube is inserted into the outlet of the container body The blocking wall blocking the discharge port is easily cut off, and the medicine is quickly and smoothly put into the tree.

There is a "pressure type water injector" (hereinafter referred to as " Prior Art 2 ") of Korean Registration No. 10-1250910 (published on March 31, 2015) of the following patent document.

In the prior art 2, a space for receiving a drug is formed inside, an injection port clogged with a blocking membrane is provided at the bottom of the space, the outer circumference of the injection port is formed by a helical insertion guide, A main container having an inlet portion and a sharpened protrusion protruding from an inner wall of the space leading from the space portion to the injection port; And a plurality of wrinkles formed on the upper surface of the main body container, the plurality of wrinkles being formed in an arc shape protruding upward toward the upper side so as to apply pressure to the space portion; A connecting rod formed in the center of the inside of the pushing portion in the longitudinal direction and received in a space portion of the main body container; And a guiding portion having a " + "shape extending in the longitudinal direction, an outer side in the form of a sawtooth, and an end portion being cut in a diagonal line, at a lower portion of the connecting rod, It is a pressure type water injector.

Korean Patent Laid-Open Publication No. 10-2006-0109385 (published October 20, 2006) entitled " "Pressurized water injector" of Korean Registration No. 10-1250910 (Announced on April 3, 2013)

However, in the prior art 1, it is troublesome to assemble the separate injection tube and the main body of the injector for injecting the chemical liquid into the tree every time. In the prior art 1, the outer wall of the container body and the support wall of the compression container are closely contacted to prevent leakage of the solution. When the container is stored for a long period of time, leakage of gasified chemical liquid occurs through the close contact portion between the outer wall and the support wall And the surface contact portions of the outer wall and the support wall are in close contact with each other and not sealed.

In the prior art 2, there is a possibility that the chemical solution is immediately exposed to the outside when a bonding failure occurs at one side of the pressing part joined to the upper edge of the main body container. If the jammed state of the serrated guide part and the messy part is loose, When the pressing portion is pressed and released, the guide portion is easily detached from the holding portion and the pressing portion is retracted. Therefore, when the guide portion and the holding portion are too tight, .

Particularly, in the case of the injector in which the injection port portion having the helical insertion guide is manually turned on the tree and the pressing portion is pressed by hand, as in the prior art 2 described above, When a large number of roadside trees and trees in a lot of roads are handcrafted in a large number of forests and parks, there is a problem that it is difficult to continue work for a long time because hands and arms are swollen or a lot of physical power is consumed due to considerable fatigue.

Since the pressing portion of the prior art 2 is adhesively sealed to the main body container, the leakage of the chemical liquid gas in the stored state will not easily occur. However, at the time of compression work, the weakly adhered portion tends to rupture, The function of the pressure type is lost due to the leakage, and safety problems such as contact of the chemical agent due to the leakage of the chemical liquid may occur.

In the prior art 2, a separate cover (compression auxiliary cover) is pressed to prevent breakage of the pressing portion itself or breakage of the bonding portion of the pressing portion when the hammer directly hits the pressing portion. This is because the efficiency is very low due to the troublesome work. Therefore, a large number of roadside trees and trees in a lot of roads are time-consuming for a large-scale operation in many forests, parks, and the like, and there is a problem that the labor is consumed.

It is therefore an object of the present invention to provide an injection tube which is formed integrally with a chemical solution and which is integrally provided on the bottom of the chemical solution bottle with a hammer without using a separate compression cover, It is possible to easily install it in a tree without worrying about the leakage of the chemical liquid by hitting the compression column, thereby providing a sealed type pressure injector capable of performing a large-scale work in a lot of forests, parks, .

Another object of the present invention is to provide a closed type pressure injector in which a high pressure can be obtained while minimizing the size of an injector, and a phenomenon in which a chemical liquid component does not deteriorate even when a sealed chemical container is stored for a long period of time.

The above object of the present invention is achieved by providing a closed type pressure injector comprising a compression barrel inserting portion between an outer wall and an inner wall formed by a pair of engaging grooves spaced apart from each other by a predetermined distance, Passing through the chemical solution which is plugged and filled with the chemical solution with the rear surface opened; A chemical solution hermetic seal lid which protrudes toward the injection pipe diaphragm with a perforated needle guide tube whose tip is blocked with a guide pipe diaphragm and which is integrally joined to an open rear edge of the chemical solution lid to prevent the chemical liquid from being exposed to the outside;

A perforation needle is formed in the outer surface at a distance corresponding to the engaging groove, and a perforation needle having a long groove formed in the outer circumferential surface along the longitudinal direction is inserted into the perforated needle guide tube at the center thereof. And a compression cylinder.

It is a further object of the present invention to provide a method and a device for forming a blocking vane on an outer surface of an inner wall of a liquid medicine cylinder to be in close contact with an outer circumferential surface of a compression cylinder inserted into a compression cylinder insertion portion, By forming a protrusion for volume reduction and a volume decreasing recess for inserting the volume reducing protrusion into the chemical liquid sealing lid so as to increase the air compressing force of the compression cylinder while maintaining the moving distance a of the compression cylinder as it is .

In the present invention, since the injection tube is formed integrally with the chemical liquid, and the compression cylinder which is hammered by the hammer is assembled to the outside of the chemical encapsulation lid, there is no need to use a separate compression cover. As soon as it hits, the guide tube barrier and injection blocking membrane are ruptured rapidly, and the chemical solution is supplied in a good pressure condition. Therefore, it is possible to quickly perform large-scale operations in forests and parks with many trees and trees. And the construction cost is low.

In addition, the protrusion for reducing the volume of the compression cylinder and the protrusion for reducing the volume of the chemical liquid sealing lid minimize the size of the injector and can maintain the compressive movement distance of the compression cylinder as it is. have.

In addition, the injection blocking membrane for preventing the chemical liquid from leaking out of the chemical solution bottle is located deep inside the injection tube, and the chemical liquid sealing lid is protected by covering the compression cylinder to block the internal pressure. There is no possibility that the chemical liquid component leaks to the outside when working for several days or when the chemical liquid container is stored for a long period of time. Therefore, it is possible to effectively prevent safety accidents such as chemical liquid contamination as well as loss of the chemical liquid component.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view of an embodiment of the present invention,
FIG. 2 is a cross-sectional view showing a state in which the compression cylinder is compressed in the chemical solution container of FIG.
FIG. 3 is a cross-sectional view of the state in which the chemical-
FIG. 4 is a cross-sectional view illustrating a state in which the chemical solution container is divided into a chemical solution container and a chemical solution container,
FIG. 5 is a cross-sectional view showing a state in which the compression cylinder is compressed in the chemical solution container of FIG.

Best Mode for Carrying Out the Invention Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view showing an example of a state before the liquid medicine-passing compartment is compressed in the present invention, FIG. 2 is a cross-sectional view showing a state in which the compression cylinder is compressed in the liquid medicine container of FIG. 1, And the compression cylinder are separated from each other.

3, the compression type water injector of the present invention includes a compression barrel inserted between an outer wall 110 and an inner wall 120 formed with a pair of engagement grooves 111 and 112 spaced apart from each other by a predetermined distance, A chemical solution bottle 100 having an opening at a rear side thereof and an injection pipe 140 integrally formed at a tip end thereof and being blocked by an injection blocking film 150;

The perforated needle guide tube 210 having a tip end blocked by the guide tube blocking membrane 211 protrudes toward the injection blocking membrane 150 and is integrally joined to the edge of the opening of the rear surface of the chemical solution bottle 100, (200) for preventing the liquid medicine from being leaked.

Locking protrusions 301 and 302 are formed on the outer surface at corresponding intervals so as to be caught by the locking grooves 111 and 112 and are assembled to the compression cylinder insertion portion 130, The perforation needle 310 having the grooves 311 formed in a long length is positioned close to the guide tube blocking membrane 211 of the perforated needle guide tube 210 so that the perforated needle 310 having the grooves 311 formed in a long length can penetrate the guide tube blocking membrane 211 and the injection blocking membrane 150 in order. And a compression cylinder 300 for compressing the internal air.

Here, the means for bonding the liquid medicine bottle 100 and the liquid medicine hermetic sealing lid 200 may use various bonding means such as a general adhesive agent. However, by using the widely known ultrasonic fusing method, defects due to bonding can be minimized It can be said that it is preferable.

1, the injection blocking layer 150 blocks the gap between the chemical solution bottle 100 filled with the chemical solution and the injection pipe 140 integrally formed at the tip of the chemical solution bottle 100, and the opening behind the chemical solution bottle 100 is blocked The chemical liquid tube sealing lid 200 which is provided is prevented from being closed from the outside because the compression cylinder 300 assembled so that the latching protrusion 301 at the tip end is caught in the latching groove 111 at the tip end is blocked from the outside, There is no risk of deformation of the injection blocking film 150 and the chemical lid sealing lid 200, and the chemical liquid in the chemical liquid container 100 is very safely protected.

When the latching protrusion 301 at the distal end of the outer circumference of the compression cylinder 300 is fitted in the latching groove 111 at the distal end of the outer wall 110 of the liquid medicine bottle 100, There is a significant amount of air filled between the floor surfaces.

In this state, in order to use the pressurized water injector of the present invention in the tree, the injection tube 140 is inserted into a hole formed in the tree in advance and is tilted downward. When the rear surface (bottom surface) of the compression cylinder 300 is hammered with a hammer or the like At the same time, the compression cylinder 300 is inserted into the compression cylinder insertion portion 130 of the inner circumferential surface of the outer wall 110 of the chemical solution bottle 100, and the compression tube 300 is buried deep into the injection tube 140.

2, the latching protrusion 301 at the distal end of the compression cylinder 300 is engaged with the inner latching groove 112 so as to be caught off the latching groove 111 at the tip of the outer wall 110 of the liquid medicine cylinder 100, Since the catching protrusion 302 of the rear part of the cylinder 300 is fitted in the catching groove 111 at the front end of the outer wall 110, the compression cylinder 300 is firmly held in the compression cylinder inserting part 130, A considerable amount of air that is filled between the liquid medicine cylinder hermetic seal lid 200 and the bottom surface of the compression cylinder 300 is compressed.

1, the forward end of the perforation needle 310 of the compression cylinder 300 inserted in the perforated needle guide pipe 210 advances forward by the moving distance a at which the compression cylinder 300 is inserted, And the injection blocking film 150 are sequentially penetrated through the guide pipe blocking film 211 and the injection blocking film 150 in this order.

Since the flow grooves 311 are elongated along the longitudinal direction on the outer peripheral surface of the perforation needle 310, compressed air between the fluid container hermetic sealing lid 200 and the bottom surface of the compression cylinder 300 flows into the interior of the chemical agent bottle 100 And the chemical solution to which the pressure of the compressed air is applied is also supplied to the tree through the injection tube 140 inserted into the tree through the flow grooves 311 of the perforation needle 310 inserted into the injection blocking film 150 So that the chemical solution is supplied more smoothly.

3, two or three air blocking blades 121 are protruded from the outer surface of the inner wall 120 of the chemical solution bottle 100 and inserted into the compression tube insertion part 130, The air blocking blades 121 come into close contact with the inner circumferential surface of the compression cylinder 300 in a line contact manner to effectively reduce slip friction and prevent leakage of the compressed air when the compression cylinder 300 is compressed.

That is, when the contact between the solution and the air is made to be in surface contact as in the prior art 1, if the contact strength at the surface contact is increased, the sliding resistance due to the frictional force increases when the compression container is pushed into the container body, When the adhesive strength is reduced to reduce the frictional force, leakage of solution and air may occur.

In order to solve this problem, the present invention employs a line contact method of the air shutoff vane 121. When the chemical vial 100 is formed of a resilient material, The sliding friction can be significantly reduced, so that high pressure air leakage can be prevented and the compression cylinder can be easily pushed in even with a light hammer.

In this way, when the hammer is compressed with the injector inserted in the tree, the method of lowering the sliding friction as much as possible is one of the most important and advantageous factors for the mass work of a large size.

When the compression cylinder 300 is compressed, the compressed air in the compression cylinder 300 is discharged to the outside through the gap between the compression cylinder insertion portion 130 and the compression cylinder 300 due to the adhesion force of the air blocking blades 121 The compressed air pressure in the compression cylinder 300 can be kept very good.

In addition, even if a weak adhesive portion of the chemical liquid sealing lid 200 is partly ruptured during the compression operation of the compression cylinder 300, the air blocking blades 121 cause the gap between the compression cylinder insertion portion 130 and the compression cylinder 300 to be double It prevents the loss of compressed air or chemical liquid. Therefore, it is possible to effectively prevent the maintenance of the function of the compressed air and the safety accident caused by the leakage of the chemical liquid.

Also, in a state where the chemical solution container 100 is sealed by the liquid medicine container lid 200, the air and the air blocking blades 121 of the compression container 300 are sealed and protected from the outside of the liquid medicine container lid 200 Therefore, even if the preservation period of the pressurized water injector is maintained for a long period of time, there is no possibility that the chemical liquid component which has changed into the gas form in the chemical liquid container 100 is leaked to the outside.

As shown in FIGS. 1 and 2, the volume reducing protrusion 320 is formed on the bottom surface of the compression cylinder 300, and when the compression cylinder 300 is compressed in the chemical liquid encapsulation lid 200, It is preferable to form the recessed portion 220 into which the protrusion 320 is inserted.

The total volume of the inside of the compression cylinder 300 can be minimized while the moving distance a of the compression cylinder 300 is maintained and the compression cylinder 300 is inserted into the compression cylinder insertion portion 130 of the chemical bottle 100. [ The air compressing force can be maximized.

The volume reducing protrusion 320, which may be referred to as a pressure intensifying regulator, can provide a pressure type water injector capable of obtaining a high pressure while minimizing the overall size.

In this case, the perforation needle 310 may protrude upward from the center of the protrusion 320 for volume reduction. However, at the bottom center of the compression cylinder 300, the perforation needle 310 The force when hitting the compression cylinder 300 is uniformly transmitted to the perforation needle 310 through the support portion 330 and the guide pipe blocking membrane 211 And the injection blocking layer 150 can be easily ruptured.

In addition, the injection tube 140 is formed in the shape of a triangle having a notch 141 at a predetermined depth in three directions, and an insertion blocking jaw 142 is formed on the outer circumferential surface at a predetermined distance from the notch 141 It has one structure.

When the injection tube 140 is inserted into the hole of the tree, the injection tube 140 is supported, and at the same time, the chemical solution is dispersed in the vicinity of the bimetallic bark. Since the tip of the injection tube 140 has a flexible elasticity, it can prevent the side effect that the chemical liquid is leaked due to the failure of the injection tube to rupture and penetrate deeply when the injection tube is stuck in the wood hole.

Further, when the injection tube 140 is stuck in the hole of the tree by hitting it with a hammer, it is always stuck only at a certain depth without being stuck by the insertion blocking latching jaw 142. Therefore, the shape embedded in the tree is uniform, .

FIGS. 4 and 5 illustrate a pressure injector of another embodiment in which the liquid medicament container of the present invention is separated into a chemical liquid container and a chemical liquid container.

That is, the chemical bottle 100 is provided with a compression barrel inserting part 130 between the outer wall 110 and the inner wall 120 formed with a pair of the engaging grooves 111 and 112 spaced apart from each other by a predetermined distance, 140) is integrally formed at the distal end thereof; A drug solution inner tube 100b which is provided inside the drug solution outer cylinder 100a and has a tip end toward the injection tube 140 blocked by the injection blocking film 150 and the rear opening integrally joined to the tail of the drug solution outer tube 100a to fill the drug solution; Respectively,

At this time, the liquid medicine hermetic sealing lid 200 is integrally joined to the rim of the opening of the rear side of the chemical solution inner cylinder 100b to prevent the chemical liquid in the chemical liquid inner cylinder 100b from leaking to the outside.

4, the injection blocking film 150 at the distal end of the medicament liquid container 100b filled with the medicament liquid is located deep inside the injection tube 140 of the medicament liquid container 100a, Since the compression tub 300 is provided outside the liquid medicine tub perimeter lid 200 and the injection blocking lid 150 and the chemical liquid tubular lid 200 200 are not deformed, and the chemical solution in the chemical solution inner cylinder 100b is very safely protected.

In order to use the pressurized water injector in the tree, the injection tube 140 is inserted into the hole formed in the tree at an obliquely downward direction. When the rear surface (bottom surface) of the compression cylinder 300 is hit with a hammer, The injection tube 140 is deeply embedded in the hole of the tree, while being inserted into the compression tube insertion part 130 of the chemical solution bottle 100 deeply.

At this time, the insertion state of the compression cylinder 300 is firmly maintained by the engagement protrusions 301 and 302 that are caught in the pair of the engagement recesses 111 and 112 as shown in FIG. 5, 300 are maintained in a compressed state as described above.

The tip end of the perforation needle 310 of the compression cylinder 300 inserted in the perforation needle guide tube 210 advances forward by the moving distance a of the compression cylinder 300 and the guide pipe blocking film 211 and the chemical solution inner cylinder 100b The injection blocking layer 150 is formed in this order.

The compressed air in the compression cylinder 300 flows into the chemical solution inner cylinder 100b by the plurality of flow grooves 311 formed along the longitudinal direction on the outer circumferential surface of the perforation needle 310 and flows into the chemical solution inner cylinder 100b ) Is injected more smoothly into the tree through the injection pipe 140 inserted into the tree by the compressed air pressure, as described above.

100: Chemical liquid container 100a: Chemical liquid container
100b: chemical liquid inner tube 110: outer wall
111, 112: latching groove 120: inner wall
121: air blocking blade 130: compression cylinder insertion part
140: injection tube 150: injection blocking membrane
200: chemical liquid sealing lid 210: puncture needle guide tube
211: guide pipe shielding film 220:
300: compression cylinder 301, 302:
310: Perforation needle 311: Distribution groove
320: protrusion for volume reduction 330:

Claims (5)

In constructing the pressurized water injector,
The compression tube insertion part 130 is provided between the outer wall 110 and the inner wall 120 formed with a pair of the engagement grooves 111 and 112 spaced apart from each other by a predetermined distance and the injection tube 140 integrally formed at the tip thereof A chemical solution bottle 100 which is blocked by the injection blocking layer 150 and whose rear surface is formed as an opening;
The perforated needle guide tube 210 having a tip end blocked by the guide tube blocking membrane 211 protrudes toward the injection blocking membrane 150 and is integrally joined to the edge of the opening of the rear surface of the chemical solution bottle 100, (200);
Locking protrusions 301 and 302 are formed on the outer surface at corresponding intervals so as to be caught by the engaging grooves 111 and 112 and are assembled to the compression barrel inserting portion 130. At the center, The perforation needle 310 having a long length is protruded to be positioned close to the guide pipe blocking membrane 211 of the perforated needle guide pipe 210 so as to pierce the guide pipe barrier membrane 211 and the injection blocking membrane 150 in order, A compression cylinder (300) for compressing the internal air;
And a pressure-type water injector.
The method according to claim 1,
In the chemical solution container 100,
The compression tube insertion part 130 is provided between the outer wall 110 and the inner wall 120 formed by a pair of the engagement grooves 111 and 112 spaced apart from each other by a predetermined distance and the injection tube 140 is integrally formed An outer cylinder 100a;
The tip of the injection port 140 toward the injection tube 140 is blocked by the injection blocking film 150 and is disposed on the inner surface of the drug solution outer tube 100a. The rear opening of the drug solution inner tube 100a is fused integrally to the back of the drug solution outer tube 100a, (100b)
Wherein the medicinal liquid tube sealing lid (200) is integrally welded and joined to the rim of the opening of the rear side of the medicinal liquid inner cylinder (100b) so as to prevent the medicinal liquid in the medicinal liquid inner cylinder (100b) from leaking to the outside.
The method according to claim 1,
On the outer surface of the inner wall 120 of the chemical solution bottle 100,
And an air shutoff vane (121) which is in close contact with the inner surface of the compression cylinder (300) assembled to the compression cylinder insertion portion (130) and blocks the air in the compression cylinder (300) from flowing out to the outside. Water injector.
The method according to claim 1,
A volume reduction protrusion 320 is formed on the bottom surface of the compression cylinder 300,
The liquid medicine cylinder hermetic sealing lid 200 is formed with a recessed portion 220 into which the volume reducing protrusion 320 is inserted
And the air compressing force of the compression cylinder (300) can be increased while the moving distance (a) of the compression cylinder (300) is maintained as it is.
5. The method of claim 4,
A support portion 330 for supporting the perforation needle 310 is formed at the vertical center of the volume reduction protrusion 320 so that the force is uniformly transmitted to the perforation needle 310 when the compression cylinder 300 is hammered,
Wherein the tip of the injection tube (140) is formed in a trivet form having a plurality of notches (141) having a certain depth and having a flexible elasticity.

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