KR101950760B1 - Biodegradable training grenade capable of maintaining watertightness and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a biodegradable training grenade capable of maintaining watertightness and a manufacturing method thereof, which can prevent failure and damage of the grenade by moisture. The biodegradable training grenade capable of maintaining watertightness includes: a fuse body (20) having a safety ring, a safety clip and a safety handle combined with an upper portion thereof, a screw part (22) formed at a lower portion thereof and screwed with a grenade body (10), and an initiating tube formed at the center of the screw part; the grenade body (10) made of eco-friendly mineral and having a screw hole (12) formed at an upper portion to be screwed with the screw part (22) of the fuse body (20) and a fuse insertion hole extending from the screw hole (12) so that the initiating tube of the fuse body (20) is inserted into the fuse insertion hole; and a moisture blocking layer (100) formed on the outer circumferential surface of the grenade body (10) so as to prevent increase in external humidity or moisture and penetration of water.

Description

Technical Field [0001] The present invention relates to a biodegradable training grenade capable of maintaining watertightness and a method for manufacturing the biodegradable training grenade,

The present invention relates to a biodegradable training grenade capable of maintaining watertightness and a manufacturing method thereof, and more particularly, to a biodegradable training grenade capable of preventing water absorption of a training grenade body made of a mineral, It is possible to minimize the damage and defects of the training grenade due to moisture during the storage and transportation process, minimize the expenditure of the defense budget, minimize the environmental pollution after the use due to biodegradability, The present invention relates to a biodegradable training grenade capable of maintaining watertightness which can be easily identified and useful for a training process using a training grenade, and a manufacturing method thereof.

A grenade is a small bomb for melee combat to kill or destroy weapons in close proximity to an enemy, but it is made relatively light so that a person can pick them up by hand. The grenade is composed of a grenade body And a new fuse for igniting the explosive charged in the grenade body, and the fuse is composed of a safety collar, a safety creep and a safety handle.

The types of grenades are classified according to the purpose of use, such as commercial grenades, attack grenades for destroying weapons, gas grenades for reducing enemy power, and smoke grenades for signals. Such grenades have a considerable explosive power It is necessary to learn sufficient usage method and safety precautions in advance because it can damage not only oneself but also friend by carelessness of user having.

Therefore, when training is not performed in actual combat situations, the training grenade with a relatively small explosive force is trained. In such a training grenade, the body and the fuse are conventionally made of metal, and the training grenade is recovered after use and reused.

However, if such an exercise grenade is not recovered after use, the body and the new pipe may leak out to be used as pseudo explosives, and if they are not recovered, the natural environment may be destroyed.

Also, because of the various terrain of the training area and other objects and weeds, it takes a considerable amount of time and manpower to collect the grenade body and fins after training, and the trainees are forced to collect the training grenades all the time, , There is always a risk of losing the used grenade.

In order to solve these problems, a training grenade used in Korea recently has a grenade body 10 made of an environmentally friendly material as shown in FIG. 1, so that even if the grenade training grenade can not be recovered again, It is used to enable natural disappearance.

These eco-friendly materials can be mixed with various minerals and made similar to the weight of the actual grenades. Therefore, it is possible to achieve a high training effect. If the grenade is lost, the grenade body made of a natural mineral is mixed with the soil, .

However, as shown in FIG. 1, the training grenade made of such a mineral is very sensitive to moisture and has a problem in that its binding force is deteriorated when it is combined with the metal body body 20, Moisture is frequently infiltrated into the detonator side of the body, resulting in failure that the detonator can not be properly operated. In other words, the grenade body made of an environmentally friendly mineral material is frequently exposed to humidity such as during the rainy season in the summer season, or when the grenade body is trained when it is raining, the water is absorbed and damaged or damaged so that the grenade can not function as an exercise grenade There has been a problem that it is always stored and moved in a state of being accommodated in a separate training grenade storage box in the process of being stored or moved during training.

In other words, it is necessary to store the grenade in a grenade storage container which can be separated from the grenade as it is sensitive to humidity, so that the grenade is not separated from the storage container but always stored in the grenade storage container There is a hassle to move.

In fact, in actual combat situations, grenade training can not be trained to match actual combat situations, despite the fact that grenades can be humidified or used on military uniforms, but only when the grenades are thrown in storage containers, There is a problem that the effect of the training is remarkably deteriorated.

On the other hand, the training grenade made of eco-friendly mineral affects the new building due to its vulnerability to moisture, so that even when the training grenade is thrown, it is necessary to give the same effect as the actual explosion. However, A huge amount of military spending is being wasted.

Furthermore, since the grenade body is formed of a mineral and the new tube is formed of a metal material, when the grenade is exposed to moisture or the like, there is a problem that the coupling between the new tube and the grenade body loosens, This also leads to a malfunctioning grenade, resulting in a waste of defense costs.

1. Korean Patent Publication No. 10-2003-0040274, published on May 22, 2003.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a water-barrier layer using a biodegradable environmentally friendly resin formed from corn starch on the outer surface of a training grenade body formed of a mineral, In addition, it is possible to prevent damages and damage of the grenade due to moisture by forming a moisture barrier layer by biodegradable eco-friendly resin in the joint part of the grenade body to which the new pipe is coupled. Therefore, The present invention provides a biodegradable training grenade capable of maintaining watertightness so as to prevent waste, and a method for manufacturing the same.

Second, the present invention relates to a biodegradable training grenade capable of maintaining the watertightness by preventing the penetration of moisture by moisture or the like into the new tube through the water barrier layer and minimizing the failure of the new tube due to moisture, There is another purpose in providing a method.

Third, the present invention can prevent the occurrence of malfunctioning grenades due to the dissimilarity between the grenade body and the new pipe due to the heterogeneity of the conventional grenade body by the moisture barrier layer, thereby improving the water tightness function by the moisture barrier layer, The present invention provides a biodegradable training grenade capable of minimizing the defective rate of the training grenade and allowing the training grenade to be inspected in the training process, thereby improving the training effect.

Fourthly, the present invention can provide a training such as an actual grenade by allowing magnesium powder to be filled into a new pipe and exposing it to the outside, so that even if it is not stored in a separate training grenade storage container during storage or transportation, It is easy to handle because it can be stored without the grenade. Even in the grenade throwing training process, it is possible to train the grenade outside the combat uniform like the actual combat situation, And to provide a biodegradable training grenade capable of maintaining the watertightness capable of increasing the training effect and a method of manufacturing the same.

In order to accomplish the above object, the biodegradable training grenade according to the present invention includes a safety collar, a safety grip, and a safety handle coupled to an upper side of the biodegradable exercise grenade, a threaded portion 22 to be engaged with the grenade body 10, A main pipe body 20 having an aerating pipe formed right under the center of the screw portion and a screw portion 22 formed on the main pipe body 20 by forming a screw hole 12 on the upper side, (10) formed with an eco-friendly mineral so that an annular recess (12) is formed in the main body (20) and an annular recess hole is formed to extend into the interior of the main body (20). The grenade body The watertight barrier layer 100 is formed on the outer circumferential surface of the grenade body 10 to prevent external moisture from rising, moisture and water from penetrating into the grenade body 12, (20) is prevented from being detached from the grenade body (10) by preventing the external humidity from rising, moisture and water from penetrating, and tightening the fastener body (20) and the grenade body The moisture barrier layer 200 is formed to extend from the moisture barrier layer 100 to prevent the moisture barrier layer 200 from peeling off.

Meanwhile, the moisture barrier layer 100 and the moisture barrier bonding layer 200 are formed by coating with a resin using biodegradable corn starch.

Meanwhile, the method for manufacturing a biodegradable exercise grenade capable of watertightness maintenance according to the present invention includes mixing an environmentally-friendly mineral including barite, martin, silica sand, and loess, which can be decomposed spontaneously, with a binder and water, A method of manufacturing an eco-friendly grenade comprising a grenade body made of a mineral and a mineral formed by bonding a body of the grenade to a grenade body produced by a first firing process through a first firing process, A pretreatment step (S100) of closing the upper surface of the new canal to which the vent pipe of the new canal body (20) is connected to block the inflow of water into the canal premises (12); An immersion coating step S200 for immersing and coating the periphery of the screw hole 12 to which the grenade body 10 calcined with the mineral and the threaded portion 22 of the body tube 20 is bonded by the eco-friendly corn starch biodegradable resin, ; Drying step S300 of cooling the grenade body 10 coated with the eco-friendly corn starch biodegradable resin to 10 ° C to 4 ° C to form fine pores so that moisture is blocked through the fine pores and air is circulated; Wow; The moisture barrier layer 100 is formed on the outer periphery of the grenade body 10 according to the application of the environmentally friendly corn starch biodegradable resin through the cooling and drying step and the water barrier layer 100 is formed on the periphery of the screw hole 12, The water shielding bonding layer 200 is formed so that the threaded portion 22 of the main pipe body 20 is screwed correspondingly to the screw hole 12 so that the main pipe body 20 is released from the screw hole 12, (S400) for maintaining the bonding force so that the bonding force is maintained; And a completion step S500 of immersing the training grenade finally produced through the fuse bonding step, water tightness test, drying, final packaging, and shipping (S500).

A water barrier layer is formed on the outer surface of a training grenade body formed of a mineral, which is an eco-friendly material, using a biodegradable eco-friendly resin formed of corn starch, and a moisture barrier layer is formed on the outer surface of the training grenade body by a biodegradable eco- It is possible to prevent breakage and damage of the grenade by the moisture, and it is possible to prevent waste of the defense cost to be re-purchased for the grenade training grenade due to the fringing and damage of the grenade for training, It is possible to minimize the defects in the new pipe due to moisture, thereby preventing defects in the training grenade.

In addition, the present invention can prevent the occurrence of malfunctioning grenades such as the separation of the main tube and the grenade body due to deterioration of binding force due to heterogeneity of the conventional grenade body and the new tube due to the moisture barrier interception layer, The watertight function can be improved to minimize the defect rate of the new pipe, so that the training grenade can be confirmed in the training process, so that the training effect can be increased, and the magnesium pipe is filled with the new pipe, , It can be trained like an actual hand grenade. Even if it is not stored in a separate training grenade storage container even when it is stored or moved, it can be stored without damage and damage for a long time. Therefore, it is easy to handle. From the state of the practice of throwing away from the traditional training method, the actual combat situation The grenade can be trained outside of the combat uniform and the training effect can be increased.

1 is a sectional view of a conventional eco-friendly grenade.
2 is an exploded perspective view of a biodegradable exercise grenade capable of holding watertightness according to the present invention.
3 is a side sectional view of a biodegradable training grenade capable of watertightness maintenance according to the present invention.
4 is a block diagram showing a method of manufacturing a biodegradable exercise grenade capable of watertightness according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various forms.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention and to fully disclose the scope of the invention to a person having ordinary skill in the art to which the present invention belongs. And the present invention is only defined by the scope of the claims. Accordingly, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

Like reference numerals refer to like elements throughout the specification. And, the terms used (hereafter) used herein are intended to illustrate the embodiments and are not intended to limit the invention in any way. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. Also, components and acts referred to as " comprising (or comprising) " do not exclude the presence or addition of one or more other components and operations.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a biodegradable training grenade capable of maintaining watertightness according to the present invention and a method of manufacturing the same will be described in detail with reference to the accompanying drawings.

3 is a side cross-sectional view of a biodegradable exercise grenade capable of watertightness maintenance according to the present invention, and FIG. 4 is a cross-sectional view of a biodegradable exercise grenade capable of holding watertightness according to the present invention. FIG. 1 is a block diagram showing a method of manufacturing a biodegradable training grenade capable of being practiced.

The biodegradable training grenade according to the present invention is characterized in that a safety collar, a safety grip and a safety handle are coupled to an upper side of the biodegradable training grenade, a threaded portion 22 to be engaged with the grenade body 10 at a lower side is formed, And a threaded portion 22 formed on the body tube 20 and formed with a threaded hole 12 formed on the upper side thereof so as to be screwed into the threaded hole 12, And the grenade body 10 formed of an eco-friendly mineral so that the vent pipe of the new tube body 20 is inserted into the grenade body cavity 10 formed in the body of the new tube body 20, And the watertightness of the grenade body can be improved and deterioration of the bonding force due to the characteristics of the heterogeneous material of the grenade body and the grenade body can be prevented. As shown in FIGS. 2 and 3, Layer 100 and the moisture barrier bonding layer 200. [0033]

The moisture barrier layer 100 is formed on the outer circumferential surface of the grenade body 10 so as to prevent external moisture from rising, moisture and water from penetrating. The moisture barrier layer 100 forms micropores through cooling and drying, The grenade body 10 made of a mineral material can be prevented from being damaged, damaged or damaged due to penetration of moisture, humidity and moisture.

The moisture barrier bonding layer 200 prevents moisture from penetrating into the screw hole 12 of the grenade body 10 to which the new tube body 20 is coupled, The water shielding layer 200 is extended so as to prevent the detachment of the grenade body 20 from the grenade body 10 by preventing the grenade body 10 from being detached from the grenade body 10, (12) to which the base (20) is joined.

The water barrier layer 100 and the moisture barrier layer 200 of the biodegradable eco-friendly exercise grenade made of such a mineral are formed by coating with a resin using biodegradable corn starch. That is, since the resin using the biodegradable corn starch blocks moisture and forms micropores during the cooling and drying process, the corn starch resin is applied to the training grenade so that moisture is blocked and air can be circulated. The coating is applied without peeling at the periphery of the core.

The method for producing the training grenade comprising the water barrier layer 100 and the water barrier interlayer 200 is generally susceptible to moisture, and the conventional training grenade, , Eco-friendly minerals consisting of minerals formed by combining the eco-friendly minerals including martensite, silica sand, and loess with a binder and water, mixing the grenade bodies with the water and mixing the grenade bodies produced by the first firing through the molds of the training grenade bodies As shown in the block diagram of FIG. 4, the grenade is manufactured through a pre-treatment step S100, an immersion coating step S200, a cooling and drying step S300, a new pipe joining step S400, and a completion step S500.

The preprocessing step (SlOO)

(12) in which a grenade body (10) made of a mineral and a new tube body (20) are combined to prevent the environmentally friendly corn starch biodegradable resin from penetrating into a new tube anchoring hole before immersion in an environmentally friendly corn starch biodegradable resin In order to block the inflow of water into the inner pipe of the new pipe, the upper surface of the inner pipe of the pipe connecting the pipe of the new pipe body 20 is closed.

When the eco-friendly corn starch biodegradable resin is introduced into the inner tube of the new tube, the resin is seated on the bottom side of the inner tube of the tube, which makes it difficult to join the tube of the tube body 20, resulting in poor bonding of the training grenade.

remind The immersion coating step (S200)

(12) of the screw hole (12) to which the grenade body (10) of the grenade body (10) and the fuse body (22) of the new tube body (20), which have been calcined with the minerals subjected to the pretreatment step in which the introduction of the environmentally friendly corn starch biodegradable resin, It is coated by immersion in environmentally friendly corn starch biodegradable resin. Here, the eco-friendly corn starch biodegradable resin immersed and coated on the grenade body 10 through the immersion coating step forms a moisture barrier layer to block the inflow of water into the grenade body 10 susceptible to moisture, The threaded portion 22 is formed with a moisture intercepting coupling layer to function as an O-ring when the new pipe body 20 is screwed to improve watertightness, thereby blocking moisture, It is formed so as to prevent the deterioration of the coupling force due to the heterogeneity between the threaded portions of the body and to prevent loosening.

The cooling and drying step (S300)

The grenade body 10 of the training grenade made of a mineral is maintained in a dry state of the new grenade hole in which the grenade tube constructed in the new grenade body 20 is held by the external air and circulated to prevent the failure of the grenade tube, The curing property of the grenade body 10 is improved so that the penetration from moisture is firstly blocked by the environmentally friendly corn starch biodegradable resin and the secondary water shielding is made possible by the grenade body 10 which is dense by the curing property enhancement, The grenade body 10 coated with the environmentally friendly corn starch biodegradable resin is cooled and dried at a temperature of 10 ° C to 4 ° C so as to form micropores, thereby minimizing the peeling phenomenon between the green corona starch biodegradable resin and the environmentally friendly corn starch biodegradable resin Water is blocked through micropores and air is allowed to flow.

The fuse merging step (S400)

The moisture barrier layer 100 is formed on the outer periphery of the grenade body 10 according to the application of the environmentally friendly corn starch biodegradable resin through the cooling and drying step and the water barrier layer 100 is formed on the periphery of the screw hole 12, The water shielding bonding layer 200 is formed so that the threaded portion 22 of the main pipe body 20 is screwed correspondingly to the screw hole 12 so that the main pipe body 20 is released from the screw hole 12, So that the bonding force is maintained. That is, the moisture barrier bonding layer 200 serves as an o-ring for improving the water-tightness due to the threading, and also acts as a threading taping treatment for preventing loosening.

In the completion step S500,

The training grenades finally produced through the new pipe bonding step are immersed in a water tank, subjected to a water tightness test, dried and finally shipped through the final packaging.

Since the training grenade manufactured in this way is resolved to be vulnerable to moisture penetration, it is usually stored in a training grenade case and moved away from the used grenade case, so that it can be practiced such as actual practice by walking directly to the military uniform of a soldier like actual training. And it is easy to maintain and manage a plurality of training grenades at a time because a separate container for each of the training grenades for water shielding is not required and the training grenades can be stored and managed at a time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. Various changes and modifications may be made by those skilled in the art, The present invention is not limited thereto.

10: Hand grenade body 12:
20: main body 22: thread
100: water barrier layer 200: water barrier layer

Claims (3)

A main pipe body 20 formed with a safety ring, a safety grip, and a safety handle on the upper side and a screw portion 22 to be engaged with the grenade body 10 on the lower side, The upper end of the main pipe body 20 is formed with a screw hole 12 formed on the upper side and screwed to the screw portion 22 formed on the main pipe body 20, And a grenade body (10) formed of an environmentally friendly mineral so as to insert an ignition tube of the grenade,
A water barrier layer 100 is formed on an outer circumferential surface of the grenade body 10 so as to prevent moisture from being introduced into the grenade body 20, The main pipe body 20 and the grenade body 10 are connected to each other through the main body 20 and the main body 20 so as to prevent the moisture from rising, Wherein the moisture barrier layer (200) is formed to extend from the moisture barrier layer (100) to prevent the moisture barrier layer (200) from being detached from the water barrier layer (100).
The method according to claim 1,
Wherein the water barrier layer (100) and the water barrier bonding layer (200) are formed by coating with a resin using biodegradable corn starch.
The eco-friendly minerals including natural minerals, martensite, silica sand and loess that can be decomposed spontaneously are mixed with a binder and water, stirred, and subjected to a primary calcination treatment through a mold of a training grenade body to form a grenade body A method for manufacturing an eco-friendly grenade made of minerals,
A screw hole 12 to which the grenade body 10 made of a mineral and the main pipe body 20 are connected and a top surface of the main pipe body 20 to which the vent pipe of the main pipe body 20 is connected to block the inflow of water into the main pipe A preprocessing step (SlOO) for stopping processing;
An immersion coating step S200 for immersing and coating the periphery of the screw hole 12 to which the grenade body 10 calcined with the mineral and the threaded portion 22 of the body tube 20 is bonded by the eco-friendly corn starch biodegradable resin, ;
Drying step S300 of cooling the grenade body 10 coated with the eco-friendly corn starch biodegradable resin to 10 ° C to 4 ° C to form fine pores so that moisture is blocked through the fine pores and air is circulated; Wow;
The moisture barrier layer 100 is formed on the outer periphery of the grenade body 10 according to the application of the environmentally friendly corn starch biodegradable resin through the cooling and drying step and the water barrier layer 100 is formed on the periphery of the screw hole 12, The water shielding bonding layer 200 is formed so that the threaded portion 22 of the main pipe body 20 is screwed correspondingly to the screw hole 12 so that the main pipe body 20 is released from the screw hole 12, (S400) for maintaining the bonding force so that the bonding force is maintained;
(S500) of immersing the training grenade finally produced through the new tube joining step into a water tank to perform water tightness test, drying, and finally shipment through the final packaging (S500).

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