KR200303836Y1 - a scientific miniature rocket blastoff base - Google Patents

Abstract

The present invention relates to a rocket launch device for science teaching materials, more specifically, the air injection pipe 72 is installed in the lower center of the main body 6 is provided with a fixing means (A) at the bottom, the plastic beverage bottle intact The rocket injection hole control unit B, which is mounted and controlled by the rocket 100 used as the injection hole, is installed at the center upper portion of the main body 6, and a wire handle for controlling the operation of the rocket injection hole control unit B at a distance from the outside ( In the firing apparatus of the plastic drink bottle rocket for scientific teaching material which is configured to 90, by releasing the control of the injection port of the rocket by pulling the wire handle (90), to be launched at the pressure of the air filled in the rocket,

The rocket injection port control unit (B) has a cylindrical fixed body (4) in which the ball stopper (5) is inserted on the one side wall so as to be flowable at equal intervals, and the inner wall thereof is inclined to be grounded with the ball stopper (5). Part 22 is formed at equal intervals, one side of the outer periphery is formed with a coupling projection (24) having a coupling hole 26 includes a rotation control unit (2) is fitted to the outer periphery of the fixed body (4) and,

The main body 6 includes a fixed protrusion 62 vertically installed on one side of the upper surface of the substrate 67 and a guide post 65 having a predetermined length vertically so as to mount the rocket 100 and maintain the firing angle and direction. ) And a male rotary part 66 formed at both ends of the substrate 67,

The wire handle 90 is one end thereof is sequentially coupled to the fixing projection 62 and the engaging projection 24, the wire 94 is provided to rotate the rotation control unit 2, and both ends of the fixing projection on the outer peripheral surface (62) and the spring 92 is carried on the engaging projection (24), the structure is more concise so that the production cost is reduced, and the durability is improved, even if repeated use of the rocket injection port control No damage occurred to improve the accuracy and reliability of the product.

Description

Rocket Launcher for Science Textbooks {a scientific miniature rocket blastoff base}

The present invention relates to a rocket launch device for science textbooks, and more particularly, a science textbook rocket that is made of plastic waste drink bottles and equipped with a launch pad to charge the air inside the rocket at a high pressure to launch it. It relates to a launch device.

In recent years, various types of science textbooks consist of separate launch pads that can be used to make science textbook rockets and shoot them into the air in order to provide more interesting and active participation as students progress their science education. Rockets and their launch devices have been proposed and used.

As one of the launching devices for rockets for science textbooks, Korea Utility Model Registration 20-0216942 can be mounted as it is without the need for a separate injection port, so that the existing plastic drinking bottle can be mounted as it is to get thrust with compressed air to launch the rocket. A plastic beverage bottle rocket launcher for science textbooks is posted.

This is briefly described with reference to FIGS. 6, 7, and 8 from the accompanying drawings.

That is, the rocket injection port control unit and the control and release unit 3 'are inclined portions 2' of the rocket injection port control unit 1 'which is cut and divided into three and a plurality by the expansion force of the built-in expansion spring 4'. To control the injection port of the equipped plastic beverage bottle rocket rocket equipped with the rocket injector control unit 1 'and retract the high pressure air through the air filling valve 7' When launching the teaching material plastic beverage bottle rocket, press the wire handle 14 'and pull the wire 11' inside the wire tube 13 'connected to the wire handle 14' to fix the wire 11 '. The wire fixing part 12 'presses the pressing plate 8' to lower the control and releasing part 3 'of the rocket injector control part so as to cut into three and many parts to control the rocket injector. 1 ') The rocket jet that was controlled by the unfolding was released and the plastic beverage bottle rocket for science textbooks was launched.

By the way, the conventional plastic beverage bottle rocket launching device for science teaching materials is composed of a rocket injection port controller 1 'and a pressing plate 8', an expansion spring 4 ', a release portion 3', etc. Due to the large number and complexity of the bar components, the production cost is high, and there is a high possibility of failure, and in particular, the rocket injection control unit is formed by cutting the triangular and multiple parts by repeating the installation and launching operation of the rocket several times. Is deformed or damaged by fatigue accumulation, there was a problem that the mounting and launch of the rocket unstable or impossible.

The present invention is devised to solve the problems of the prior art, and the structure of the rocket injection port control unit more concise and durability is improved, so as to reduce the production cost, and even to carry out the mounting and launching operation of the rocket for a long time It is an object of the present invention to provide a rocket launch device for scientific teaching materials that does not cause deformation or breakage of the rocket injection port control unit to improve product accuracy and reliability.

1 is an exploded perspective view of a rocket launch device for science teaching materials according to the present invention

2 is a perspective view of a rocket launch device for science teaching materials according to the present invention

Figure 3a is a longitudinal cross-sectional view showing a state equipped with a scientific teaching rocket in the present invention

3B is a cross-sectional view of FIG. 3A

Figure 4a is a longitudinal cross-sectional view showing the state when the rocket for teaching materials in the present invention is launched

4B is a cross-sectional view of FIG. 4A

Figure 5 is a side view showing another embodiment of a rocket launch device for science teaching materials according to the present invention

6 is a perspective view showing the prior art

Figure 7 is a cross-sectional view showing a state equipped with a science textbook rocket in the prior art

Figure 8 is a cross-sectional view showing a state when the scientific teaching rocket is launched in the prior art

* Description of the symbols for the main parts of the drawings *

2: rotation control unit 4: fixed body

5; Ball Stopper 6: Body

8: rotating member 22: inclined portion

24: engaging projection 26: coupling hole

30; Lower support 32: fitting hole

34: rib 50: support plate

62: fixed protrusion 63: air injection nozzle

64: fixing hole 65: guide stand

66; Male copper part 70: air charge pump

72: air injection pipe 82: support leg

84: female rotating part 86: fixing screw

88: dimension plate 90: wire handle

92: spring 94: wire

100: rocket 102; Nozzle

104: round jaw

In order to achieve the above object, the present invention is a fixing means and an air inlet is installed in the lower part of the main body, the rocket injection port control unit for controlling by mounting the rocket using the plastic beverage bottle inlet as it is installed in the upper center of the main body and And a release part for controlling the operation of the rocket injection hole control unit, and a wire handle for controlling the release part at a distance, and releasing the control of the injection hole of the rocket by pulling the wire handle to release the air charged in the rocket. In the launch device of the plastic beverage bottle rocket for science textbooks to be launched under pressure,

Cylindrical fixture provided with a plurality of ball stoppers on the inner circumference and a predetermined length of air injection nozzle, and a plurality of inclined portions are formed on the inner circumference and coupling protrusions on one side of the outer circumference to form an outer circumference of the fixture. A rocket injection port control unit configured to be installed at a central upper portion of the main body by a cylindrical rotation control unit installed to be inserted into the main unit; A wire handle having an end of a wire connected to the rotation control unit; A fixed protrusion and a guide bar are formed on one side of the upper surface, and a male body is formed on both sides of the outer circumferential surface and fixed to the support leg; A rotational member having a predetermined length of supporting legs having a circular dark pivot on the inner side, formed on both sides of the upper surface, and having a toothed plate on the bottom thereof; A lower support formed on one side of the upper surface of the rib coupled to the tooth portion of the tooth dimension plate; It is configured to include.

Hereinafter, the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a rocket launch device for science teaching materials according to the present invention, Figure 2 is a perspective view of a rocket launch device for science teaching according to the present invention, Figure 3a is a state equipped with a science teaching rocket in the present invention Figure 3b is a longitudinal cross-sectional view, Figure 3b is a cross-sectional view of Figure 3a, Figure 4a is a longitudinal cross-sectional view showing a state when the rocket for teaching materials in the present invention, Figure 4b is a cross-sectional view of the Figure 4a, Figure 5 is a science according to the present invention It shows a side view showing another embodiment of the teaching material rocket launch device.

Looking at the present invention in more detail with reference to Figures 1 to 5, the present invention is an air injection pipe 72 is installed in the lower center of the main body 6 is provided with a fixing means (A) at the bottom, plastic beverage bottle inlet Rocket injection port control unit (B) for mounting and controlling the rocket 100 that is used as an injection hole is installed in the upper center of the main body 6, the wire for controlling the operation of the rocket injection port control unit (B) at a distance from the outside It consists of a handle (90), by releasing the control of the injection port of the rocket by pulling the wire handle (90) as a basic configuration of the launch device of the plastic drink bottle rocket for science teaching materials to be fired at the pressure of the air charged inside the rocket do.

In addition to the above-described configuration, the present invention allows the rotation control unit 2 of the rocket injection port control unit B to be rotated by the operation of the wire handle 90 so that the inlet and takeout operation of the ball stopper 5 of the fixed body 4 is controlled. It is characterized in that the mounting and firing operation of the rocket is made.

In addition, it is possible to determine the firing angle and direction of the rocket by the up and down or left and right rotational motion of the main body 6 coupled to the lower fixing means (A).

The rocket injection port control unit (B) is largely composed of a cylindrical fixed body (4), and a cylindrical rotation control unit (2) coupled to the outer circumference thereof to repeat the rotation and return operation by a predetermined interval to the left and right.

In particular, the fixed body 4 is a plurality of ball stopper (5) which flows back and forth are arranged on the side wall at equal intervals, the through-hole 42 into which the ball stopper 5 is fitted, even if the ball stopper (5) flows back and forth The diameter is narrower from the outer circumference to the inner circumference so as not to flow out to the inner circumference.

In addition, the rotation control unit 2 is formed with a coupling protrusion 24 having a predetermined coupling hole 26 so that the end of the wire 94 is fitted and fixed on one side of the outer circumference, and the ball stopper 5 on one side of the inner wall. A plurality of inclined portions 22 are grounded at equal intervals and are fitted to the outer circumference of the fixing body 4. At this time, the top of the inclined portion 22 is rotated so that the ball stopper 5 does not fall. It is formed considering the gap.

Meanwhile, one end of the wire 94 into which the spring 92 is fitted is engaged with the coupling protrusion 24 of the rotation control unit 2, and one end of the spring 92 is one of the fixing protrusion 62 of the main body 6. Touched on the side, the other end of the spring 92 is touched on one side of the engaging projection 24, the other end of the wire 94 is connected to the wire handle (90).

In this case, the wire handle 90 has a conventional shape in which a wire 94 of a predetermined length is fixed to the handle.

The main body 6 has a fixing protrusion 62 having a fixing hole 64 on one side of the upper surface of the substrate 67, and the wire is mounted on the other side to mount the rocket 100 and maintain the firing angle and direction. The guide bar 65 of a predetermined length that is bent is formed, and the male turning part 66 is formed opposite to both sides of the middle portion of the substrate 67.

In one embodiment of the fixing means (A) for fixing the main body 6 in the present invention, as shown in Figure 1 and the rotating member (8) coupled to the main body 6, the lower portion of the rotating member (8) Composed of the dimension plate 88 and the lower support 30 is coupled.

The pivot member 8 includes a plurality of support legs 82 formed on the upper end of the base plate 83 with a plurality of support legs 82 formed at an upper end thereof with a female pivot part 84 coupled to the male pivot part 66 of the main body 6. The fitting protrusion in the lower center of the plate 83 protrudes downward.

In addition, the tooth plate 88 has a through hole 882 is formed so that the fitting protrusion is splined in the center and provided with a plurality of gears 880 on the outer periphery to be interlocked with the body (6).

The lower support 30 has a fitting hole 32 in which the fitting protrusion is fitted at the center thereof, and at one side thereof, the rib 34 is coupled to the gear 880 to control the rotation of the tooth dimension plate 88. A plurality of support plates 50 are attached to the outer periphery at equal intervals, and are coupled to the lower portion of the pivot member 8 to which the tooth dimension plate 88 is coupled and seated on the ground.

On the other hand, Figure 5 shows another embodiment of the fixing means (A), a tripod 200 consisting of the angle fixing device 202 and the inclination indicator 210 to adjust the upper and lower angles at the bottom of the main body (6) Is done.

The tripod 200 is the upper end portion is rotatably coupled to the hinge portion 300 in the lower center of the main body 6, the fastener 205 is coupled to the fixing screw 204 on the upper side on the support leg 203 on one side Is installed, one end is pivotally coupled to one side of the substrate 67 and the other end is an angle consisting of a support bar 206 coupled to penetrate through the fixture 205 and fixed by the fixing screw 204 The fixing device 202 is installed.

In addition, a tilt indicator 210 composed of a scale plate and an indication needle rotated by its own weight is attached to one side of the substrate 67 of the main body 6.

In order to fix the tripod 200 configured in this way to the desired firing direction and angle, first loosen the fixing screw 204 of the angle fixing device 202 slightly loosely in the state where the tripod 200 is fully deployed, and then the main body ( When 6) rotates according to the required angle, the inclined indicator 210 rotates together while the indication needle rotated by its own weight automatically instructs the inclination. When the angle is determined, tighten the fixing screw 204 to fix the support bar 206 to fix the main body 6 at an appropriate angle, and then move the tripod 200 to set the firing direction and the rocket 100 ) To mount and fire.

Looking at the operation of the present invention configured as described above are as follows.

As shown in Figures 3a and 3b, the fixing means (A) is first seated on the ground to be fixed and then the rocket 100 made of a waste plastic beverage bottle (PET bottle) vertically rocket injection control unit ( When the lower end of the injection hole is brought into close contact with the packing 44 by inserting it into the fixing body 4 of B), the round jaw 104 of the lower rocket injection hole 102 pushes the ball stopper 5 inward. Since the ball stopper 5 pushed inward is rolled in along the inclined portion 22, the ball stopper 5 is introduced into the inside, thereby creating a space into which the injection hole 102 of the rocket can be fitted.

Then, when the round jaw 104 of the injection hole passes the ball stopper 5 completely, the rotation control part 2 recovers to its original state by the repulsive force of the spring 92, and the ball stopper 5 again moves the inclined part 22. Since the roll is located at the highest point and a part of the ball stopper 5 protrudes, the mounting of the rocket is completed while the ball stopper 5 is in close contact with the injection hole 102 of the rocket.

When the mounting of the rocket is completed, the air charging pump 70 is driven to compress and charge the air to a high pressure inside the rocket.

At this time, the rocket 100 tries to leave the rocket injection port control unit B by air pressure, but the ball stopper 5 of the fixed body 4 is strongly adhered to the outer circumference of the lower injection port 102 of the rocket to the outside. It does not stick out and is fixed.

After the mounting is completed, the main body 6 is operated in the up and down direction to determine the desired firing angle and the firing direction, and when pulling the handle of the wire handle 90, the wire 94 interlocked with this is pulled and fixed to the end thereof. As the engaging protrusion 24 moves, the rotation control unit 2 rotates in one direction, whereby the ball stopper 5 rolls along the inclined portion 22 as shown in FIGS. 4A and 4B and is positioned at the lowest point. As a result, the ball stopper 5 is drawn into the through hole 42.

When the ball stopper 5 fixed to the injection hole 102 of the rocket is retracted as described above, when the fixed state is released, high-pressure air filled in the rocket is ejected to generate thrust and the rocket is launched.

When the releasing of the rocket is released, the gripped wire handle 90 is pushed to push the engaging protrusion 24 while being held by the fixing protrusion 62 by the expansion force of the spring 92 installed at the end thereof, thereby rotating the controller. As the (2) is rotated to its original state, the ball stopper (5) rolls back along the inclined portion (22), returns to the highest point, and a part of the ball protrudes outward of the inner circumference of the fixture (4) to wait for the next mounting operation. .

Therefore, the rocket launch device for scientific teaching materials according to the present invention, in the conventional rocket launching device, by using a ball stopper to the rocket injection port control unit on which the rocket is mounted, can reduce the production cost and improve the durability because the structure is simple. Thus, even if the rocket is repeatedly installed and fired several times, the rocket injection port controller does not cause deformation or damage, thereby providing the user with reliability and accuracy, and allowing the user to arbitrarily adjust the rocket's firing direction and firing angle. The advantage is to increase the convenience of.

Claims (3)

Air injection pipe 72 is installed in the lower center of the main body 6 is provided with a fixing means (A) in the lower portion, the rocket injection port control unit for controlling by mounting the rocket 100 using the plastic beverage bottle inlet as it is (B) is provided in the upper center of the main body 6, the outside is composed of a wire handle 90 for controlling the operation of the rocket injection port control unit B at a distance, by pulling the wire handle 90 In the firing apparatus of the plastic drink bottle rocket for scientific teaching materials to release the control of the injection port of the rocket to be launched by the pressure of the air charged in the rocket, The rocket injection port control unit (B), the through-hole 42 formed in a narrower diameter from the outer periphery to the inner periphery on the one side wall is formed at equal intervals, the ball stopper (5) in the through-hole 42 to flow The cylindrical fixing body 4, which is fitted, is fitted and coupled to the outer periphery of the fixing body 4, and the inclined portion 22 which is grounded with the ball stopper 5 is formed on the inner wall at equal intervals, One side of the outer circumference includes a cylindrical rotation control unit 2 formed with a coupling protrusion 24 having a coupling hole 26, The main body 6 is placed vertically on one side of the upper surface of the substrate 67, the fixing projection 62 having a fixing hole 64 therethrough, and the substrate spaced apart from the fixing projection 62 ( On the other side of the 67, the guide post 65 of a predetermined length vertically formed to mount the rocket 100 and maintain the firing angle and direction, and the substrate 67 between the guide post 65 and the fixing projection 62 Both side ends include a male turning part 66 formed to be coupled to face the female turning part 84 of the rotating member 8, One end of the wire handle 90 is sequentially coupled to the fixing hole 64 of the fixing protrusion 62 and the coupling hole 26 of the coupling protrusion 24 so that the coupling protrusion 24 and the rotation control unit 2 are provided. The wire 94 and the outer peripheral surface provided to rotate the both ends on the fixing projection 62 and the engaging projection 24 of the main body 6, respectively, the engaging projection 24 and the rotation control unit Rocket launch device for science teaching material, characterized in that it comprises a spring (92) provided to provide a restoring force to (2). The method of claim 1, wherein the fixing means (A), A support leg 82 having a female pivot portion 84 coupled to the male pivot portion 66 of the main body 6 at its upper end is placed on the upper edge of the base plate 83 so as to face each other. A rotation member 8 in which a fitting protrusion protrudes downward in the center of the lower surface; A through hole 882 is formed in the center so that the fitting protrusions are splined to each other, and a plurality of tooth parts 880 are provided on the outer circumference thereof, and the dimensional plate 88 interlocked with the pivot member 8 and the main body 6. and; A fitting hole 32 into which the fitting protrusion is fitted is formed at a central portion thereof, and at one side thereof, the rib 34 is coupled to the gear 880 to control the rotation of the tooth dimension plate 88. The support plate 50 of the lower support 30 is attached at equal intervals is coupled to the lower portion of the rotating member 8 to which the tooth plate 88 is coupled; Rocket launch device for science teaching materials, characterized in that made. The method of claim 1, wherein the fixing means (A), A tripod 200 having an upper end rotatably coupled to a hinge 300 at a lower center of the main body 6, and having three support legs 203 spaced at equal intervals and arranged in a triangular pyramid shape at the bottom thereof; On one side of the support leg 203, a fastener 205 having a fixing screw 204 coupled thereto is installed, one end of which is pivotally coupled to one side of the substrate 67, and the other end penetrates through the fixture 205. An angle fixing device 202 coupled with a support bar 206 to be fixed by the fixing screw 204, An inclination indicator (210) composed of a scale plate and an indicator needle rotated by its own weight and attached to one side of the substrate (67) of the main body (6) to display a rotation angle when the main body (6) rotates up and down; Rocket launch device for science teaching materials, characterized in that made.