KR200279401Y1 - educational korean cannon - Google Patents

Abstract

The present invention relates to a learning cannon using a rocket principle, and more particularly, to a learning cannon showing the principle of a conventional rocket launching through instantaneous expansion of a gas generated by a gunpowder explosion. It is designed to solve the problems of the effectiveness, the dangers of the fuel-propelled rockets, and the economics. By varying the angle, it is possible to explain the flight distance of the projectile according to the firing angle, to secure the safe use of the gunpowder by combining the screw part using the cap in the use of gunpowder, the appearance of the learning cannon, Enough to induce learner's curiosity can increase concentration of learning and increase learning effect Hearing effects and the auditory effects of the explosive sound from the learning cannon are designed to explain the rocket principle in a realistic sense.

Description

Educational cannon using the rocket principle {educational korean cannon}

The present invention relates to a learning cannon using the rocket principle, and more particularly, to a learning cannon showing the principle of a conventional rocket launching through instantaneous expansion of a gas generated by a gunpowder explosion.

In general, through the principle of the rocket, there are many kinds of learning spheres for learning the movement of the object, most of the types of learning spheres are divided into water cannons using water pressure and rocket devices using gunpowder are used as learning materials have.

As described above, in order to use the learning tool to explain the rocket principle, the learning tool having a launch device using the ejection of burned gas is effective to understand the action and reaction in order to best expect the learning effect. The learning zone using this principle uses the explosive gunpowder as the medium for obtaining the propulsion of the propulsion force, so the flame is ejected during the rocket launch, and the reloading of the expensive propulsion rocket powder is used every time during the launch. Because of the economic burden, the safety accidents caused by the use of unsafe gunpowder, and the explosive used as the explosive medium, there were many obstacles to explaining the rocket principle using real gunpowder.

It is common practice to use a teaching tool used as a textbook and a water rocket (or water cannon) using water pressure to solve these problems while explaining the rocket principle. It is easy to use and easy to manufacture and is used as a learning zone.

However, the principle of the water cannon is that the projectile is released from the cradle by the water pressure generated by changing the water pressure by using a pump while the projectile to be moved to the hanging table is set using the water pressure of the water cannon. In this case, there is a problem in that pumping is performed for a long time to obtain energy for moving the projectile, and compared to an effort to achieve variable water pressure through pumping, the flight distance of the projectile is short and the learner has a problem that is insufficient to cause interest. will be.

In addition, the use of the learning zone using the rocket principle, in order to increase the learning effect, it is common for a large number of learners to learn using a single learning zone rather than indoors. Although it should be arranged, the conventional water cannon has a simple appearance and lacks a function of inducing an audible stimulus. There is a problem that does not get the learning effect.

Therefore, the present invention is designed to solve the problems of the existing water rocket installation, effect, or the risk of the fuel-propelled rocket, economical in view of the above problems, the rocket launch function using the rapid expansion of the gas The learning sphere having the structure is composed of a normal cannon having a projectile and a large platform, and the angle of the projectile can be changed to explain the flight distance of the projectile according to the launch angle. If you explain it as follows.

1 is an exploded perspective view showing the configuration of the present invention

2 is a perspective view of the present invention

Figure 3 is a state diagram showing the angle control of the projectile in the present invention

a is the angle is horizontal

b is a state in which the angle is increased

Figure 4 is a state showing the combination and operation of the projectile and the macro stand in the present invention

Explanation of symbols for main parts of the drawings

1; support stand 2; wheel 3; support plate 4; screw 5; angle plate

6; pod 7; wick discharge hole 8; gunpowder inlet 9; cap

10; projectile coupling 11; projectile 12; learning cannon

13,13 '; thread 14; gunpowder 15; wick 16; auxiliary wing

17; front 18; hinge

The angle plate 5 with the tightening screw 4 is combined with the leg 6 to the support plate 3 on which the moving wheel 2 is formed below the mounting table 1, and the wick is discharged to the mounting table 1. A cap 9 formed with the ball 7 and the gunpowder indentation 8 is formed, and the projectile engaging portion 10 is coupled to the rear surface of the integrated support stand 1, and the support stand 3 coupled to the support plate 3. ) By combining the projectile (11).

Reference numeral '21' denotes a fixture, and '22' denotes a hinge hole.

As described above, the use of the learning cannon 12 divided into the projectile 11 and the stand 1 is as follows.

By separating the cap 9 coupled by the engagement of the screw portions 13 and 13 ′ formed on the rear surface of the holder 1, the gunpowder indentation 8 formed in the cap 9 is inserted into the gunpowder 14 to be used as an explosion medium. The gunpowder 14 to be used is one that is divided into the gunpowder portion 14 and the wick 15 in the form of the explosive charcoal produced in a conventional manner, and caps the wick 15 of the gunpowder 14 In the state where the wick discharge hole 7 formed in the 9 is discharged to the outside of the cap 9, the separated cap 9 is recombined with the mounting table 1 using the screw portions 13 and 13 ', In order to prevent the explosive force generated from the cap 9 from leaking out of the macro table 1, the angle of the macro table 1 is varied by using the angle adjuster 5, and the projectile 11 is moved. If fixed by using the tightening screw (4) in the state to set the angle to be launched, the angle of the stand 1 and the ford (6) is fixed in a variable state.

The projectile 11 is coupled to the holder 1 in the state prepared as described above, and the wick 15 leaked out of the cap 9 is ignited to generate an explosive action of the gunpowder. 1) The gas inside the abrupt expansion is caused, by the expansion pressure of the air inside the macro stage 1, the projectile 11 is launched by pushing the projectile 11 coupled to the macro stage 1.

In the present invention, the coupling 1 and the projectile 11 are coupled to each other, even though the projectile 11 is naturally coupled to the holder 1, the air inside the projectile 11 coupled to the holder 1 is excessively leaked outwardly. It is preferable to configure the difference between the outer diameter of the mounting table 1 and the inner diameter of the projectile 11 so as to be small, and the coupling method is such that the projectile 11 can be formed outside the mounting table 1.

The configuration of the cap 9 of the present invention is made of a material that can withstand the high temperature generated while the wick 15 burns in a state where the wick 15 is ignited in the wick discharge hole 7. , The combination of the cap 9 and the support stand 1 is a fastening method using a comfortable sphere (not shown), etc., can be configured according to the user's convenience, the appearance of the learning sphere is the projectile 11 and the macro stand ( 1) is divided, the projectile 11 coupled to the hanging table (1) is configured to be separated and fired, the appearance is to increase the learning effect, such as canvas, gun can inspire the learner's learning It can be configured in appearance.

In the present invention, the shape of the projectile 11 may form an auxiliary wing 16 which may increase the flight distance of the projectile 11, and the projectile 11 which is fired and moves at high speed may be applied to a person or other object. When colliding, the front part 17 of the projectile may be formed of a soft material in order to prevent the safety accident through shock absorption in order to protect the projectile 11 and the person who collides with it.

In the present invention, the use of the moving wheel 2 is configured to divide the center of gravity of the cannon 12, the size of the moving wheel 2 cannon 12 is higher. It is preferable that the cannon 12 is configured to be stably supported without being in contact with the ground during the down flow.

In the present invention, the configuration of the foot leg 6 and the macro stand 1 is combined with the hinge 18 so that the angle of the foot leg 6 and the macro stand 1 can be varied, which is indicated for the above configuration. The display of the angle plate 5 may vary according to a user's request, but it is preferable to maintain the angle plate 5 at 0 ° to 90 ° based on the horizontal level of the angle.

As described above, the angle of the projectile 11 is variable. It may be possible to control by wireless, and can operate by using a motor or servo for angle adjustment.

As described in detail above, using the pressure of the gas generated by the explosion of the gunpowder (1) and the shooting table (1) generated by the explosion of the gun 14, the learning cannon consisting of a target learning sphere that the projectile 11 is launched ( 12, the use of gunpowder 14 in the use of gunpowder (14) can be secured to the safe use of the gunpowder 14 by the combination of the screw portion 13 (13 ') using the cap 9, the appearance of the learning cannon 12 This is enough to induce the learner's curiosity, can increase the concentration of learning, the effect of increasing the learning effect, and the auditory effect of the explosion sound generated from the learning cannon 12, to explain the rocket principle in a realistic sense. It can be effective.

Claims (1)

The angle plate 5 with the tightening screw 4 is combined with the leg 6 to the support plate 3 on which the moving wheel 2 is formed below the mounting table 1, and the wick is discharged to the mounting table 1. A cap 9 having a ball 7 and a gunpowder indentation 8 is formed, and the projectile engaging portion 10 is coupled to the rear surface of the unoccupied pedestal 1, and the pedestal 1 coupled to the support plate 3. Learning cannon using the rocket principle, characterized in that by combining the projectile 11)