JP2001140746A - Water rocket and launcher of this water rocket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and quickly extend an electric wire by crossing a ravine between mountains, a river and a house. SOLUTION: This water rocket A having plural tank parts 1 and sealing water and compressed air in these tank parts 1 is energized by an elastic repulsive means 62, a guide rope 89 is supported by and installed in the water rocket A, initial velocity is imparted to the water rocket A by the elastic repulsive means 62 by releasing the energization in this state, and the water rocket A is made to soar up by the propulsion while injecting water from an injection port 3 by opening the injection port 3 just after launching so that the guide rope 89 can be carried far.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to mountain valleys, rivers,
The present invention relates to a water rocket used for extending an electric wire across a house or the like and a launch pad of the water rocket.

[0002]

2. Description of the Related Art Conventionally, for example, when an electric line such as a transmission line or a distribution line is extended across a mountain valley, a wire for extending the line is attached to the electric wire where the electric line is located on a slope facing the mountain valley. And the worker holds the extension rope in his hand, goes down one slope, crosses a steep valley, arrives at the other, climbs the slope again, and thereafter, the worker removes the extension rope. The method of extending the electric wire across the valley by pulling was adopted. However, guns with flying arrows have recently been used because this method is labor intensive and inefficient as well as dangerous. That is, one end of a thin and light guide rope is connected to the extension wire rope, and the other end is fixed to the arrow, and a worker wearing the arrow mounts a gun on the other mountain from the slope of one mountain to the other. A method has been adopted in which an arrow is shot toward an inclined surface and the arrow reaches an inclined surface of the other mountain, where an operator approaches the guide rope, the extension rope, and further the electric wire.

[0003]

However, the method of using a gun provided with the above-mentioned arrow is efficient and safe without requiring labor, but requires an operator who is authorized to handle the gun. In addition, there is a problem that it is difficult to carry out the work easily and promptly because the work and the work schedule are restricted because the work requires the permission of the authorities in advance to perform the work. Was. Therefore, the present invention has been made to solve the above problems, and provides a water rocket and a launch pad for the water rocket, which can be easily handled by anyone without any permission and can speed up the work. It is intended for.

[0004]

In order to achieve the above object, a water rocket according to the present invention has a plurality of tanks arranged in a vertically long and communicating manner, and an injection hole is provided in a lower tank part. An air valve that seals the tank portion is detachably attached to the mouth, water and compressed air are sealed in the tank portion, and the air valve is removed so that water is ejected from the injection port to fly. A water rocket having a support member on its outer peripheral surface for allowing the water rocket to be movably disposed on the launch pad, and a release wire having a predetermined length attached to the launch pad side connected to the air valve. It consists of the following configuration.

A launch pad of a water rocket is a launch pad of a water rocket that flies by injecting water from an injection port at a lower end, and is installed so that the water rocket can move and the tip side is inclined upward. A supporting rod portion, a resilient means for resiliently urging the water rocket along the supporting rod portion toward the distal end thereof, a locking means for restraining or releasing the resilient means, and closing an injection port of the water rocket. Or a closing means for opening, wherein the closing means is released while the water rocket is moving along the supporting rod portion due to the release of the locking means and the resilient urging of the resilient means. It has a configuration in which water can be jetted.

[0006] Therefore, first, a required amount of water is poured into the tank from the lower end of the water rocket, an air valve is attached to the injection port to seal it, and a guide rope is attached. On the other hand, the water rocket is movably arranged on the support rod portion of the launch pad, and at the same time, the spring means is urged toward the distal end side,
Further, the resilient means thus urged by the locking means is restrained. Then, air is sent from the injection port into the tank, and the inside of the tank is maintained at a predetermined pressure.

Finally, the inclination angle of the support rod is set, and in this state, the locking means is released and the water rocket is accelerated by the urging of the resilient means. As a result, the water rocket is vigorously fired toward the distal end of the support rod, but while moving along the support rod, the air valve is released by the release wire of the plugging means, and the injection port is opened. , And fly with its propulsion by injecting water from there. As a result, the guide rope is almost immediately sent away, and thereafter the guide rope, the extension rope, and the electric wire are pulled in, so that the electric wire can be easily and quickly installed.

[0008] In the water rocket, the tank portion is 3
One or four are installed, and the internal pressure is set to, for example, about 10 atm. This is because a so-called plastic bottle made of a synthetic resin for enclosing a commercially available carbonated beverage is used as the tank, and if the tank for pressure resistance is separately formed, the internal pressure can be further increased, The flight distance can be extended.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a water rocket according to the present invention and a launch pad of the water rocket will be described with reference to the drawings. FIG. 1 is a perspective view of a water rocket, and FIG. 2 is a side view of the same. This water rocket A is formed into a cylindrical shape with a sharp tip, and three vertically long tank portions 1 are arranged in a straight line. The tanks 1 communicate with each other via a connecting member 2, and an injection port 3 is provided at the rear end of the tank 1 located at the rear end. In the present invention, a commercially available synthetic resin beverage container (so-called PET bottle), particularly a container for carbonated beverages having high pressure resistance, is used as the tank portion 1. As described above, when the existing beverage container is used, the water rocket A can be manufactured relatively easily and the recycling can be effectively performed.
In order to uniquely set the allowable internal pressure, a dedicated tank unit 1 may be separately manufactured.

[0010] Each of the tank portions 1 has a head portion 1a and a bottom portion 1b connected to each other. Then, as shown in FIG. 3A, the connecting member 2 has a cap body 4 screwed into and fitted to the outlet 1c of one of the small diameter heads 1a, and a washer on the outer surface of the cap body 4. A pair of male and female clamps 7a and 7 for integrally clamping and fixing the other bottom portion 1b and the cap body 4 to be joined via the spacers 5 from both sides with spacers 6 interposed therebetween.
b. The male clamp 7a has a cylindrical portion 9 having a through hole 8 and a flange 10 provided around one edge of the cylindrical portion 9 and a male screw portion screwed into a screw hole 11 of the female clamp 7b on the outer peripheral surface of the other end. 13 is engraved. Reference numeral 14 denotes a ring for reinforcement fitted on the outer peripheral surface of the cap body 4.

The cap body 4 uses a synthetic resin cap of the beverage container.
As shown in (b), a dedicated cap body 4a made of aluminum may be used. Even in this case, sufficient strength can be maintained. The other components are almost the same as those described above, and detailed description is omitted.

The injection port 3 is formed by attaching an injection nozzle 15 to an outlet 1c as shown in FIG. The injection nozzle 15 has a female screw portion 16 on the inner peripheral surface, and has a large-diameter cylindrical portion 17 screwed to the outlet 1c, and a small-diameter molded integrally with the large-diameter cylindrical portion 17 and forming a coaxial shape. And a cylindrical portion 18. The small-diameter cylindrical portion 18 is provided with a concave ring portion 19 for attaching an air valve 26 to be described later on the outer peripheral surface on the base end side. The hole of the small-diameter cylindrical portion 18, that is, the inner diameter of the injection port 3 is set to a predetermined size in relation to the driving force of the water jetted therefrom.

A cylindrical joint 20 having the same outer diameter is integrally connected between the tanks 1 and in front and rear of the tanks 1 located at the front and rear ends. Reference numeral 21 denotes a top cap fitted to the front end of the joint portion 20a located at the front end and having a sharp tip, and 22 denotes a joint portion 20 located at the rear end.
Are four wings radially protruding from the outer peripheral surface of the wing to stabilize the flight performance. The water rocket A is formed in this manner. As shown in FIG. 5, the water rocket A is hung slidably in guide rails 49 (described later) at appropriate positions on the front and rear outer peripheral surfaces. Support member 23 is provided. Each support member 23 is fixed to the outer peripheral surface by a binding band 24, and rollers 25 fitted into the guide rails 49 are rotatably mounted on both sides thereof.

The front joint portion 20a has a function of buffering an impact when the water rocket A has landed. Further, the water rocket A is preferably formed entirely of a transparent synthetic resin, so that the amount of water entering the tank portion 1 can be visually recognized from the outside, which is convenient.

Numeral 26 denotes an air valve as a closing means which is detachably attached to the injection nozzle 15. The air valve 26 has a valve body 27 as shown in FIGS.
And a valve body 28 provided inside the valve body 27 and an external fitting body 29 provided outside the valve body 27. The valve main body 27 is protruded rearward through a fitting cylindrical portion 30 into which a front end is opened and the small-diameter cylindrical portion 18 of the injection nozzle 15 is fitted, and a partition wall portion 31, and is an introduction cylinder through which the valve body 28 is inserted. It is formed integrally with the part 32. The outer fitting body 29 is provided so as to be slidable along the axial direction of the fitting cylinder 30. A compression coil 34 is interposed between an annular rib 33 provided on the outer peripheral surface of the fitting cylinder 30 and the outer fitting 29, and the outer fitting 29 is always kept in the fitting cylinder. 30 toward the front end opening side. The outer fitting body 29 has four stopper pieces 36 at equal intervals that stop the outer fitting body 29 by contacting a flange 35 provided on the outer peripheral surface of the front end edge of the fitting cylindrical portion 30 on the inner peripheral surface. Has been established. On the other hand, on the outer peripheral surface of the fitting tubular portion 30,
Four recesses 38 are also provided between the stopper pieces 36 and through which the insertion holes 37 are provided, and the outer fitting body 29 is provided in each recess 38 at the front end side of the fitting cylinder 30. Each time it slides, a U-shaped lock member 39 is provided so that the front claw portion 39a protrudes into the fitting tube portion 30 through the insertion holes 37.

The valve body 28 has the same structure as that of an air valve of a bicycle tube, for example, and has a thread groove formed in the outer peripheral surface thereof.
From the rear. Reference numeral 40 denotes a fixing nut for fixing the valve body 28 to the introduction cylinder 32, and reference numeral 41 denotes a cap nut screwed to the tip of the valve body 28. Reference numeral 42 denotes a release wire as a plugging means used for automatically removing the air valve 26 from the injection nozzle 15. Both ends are provided on an annular flange 43 provided on the outer peripheral surface of the outer fitting body 29. It is fixed to the mounting hole 44. In addition, a rubber packing 45 is mounted on the inner peripheral surface of the fitting cylindrical portion 30 to keep airtightness in place.

Therefore, the fitting cylinder 3 of the air valve 26 is provided.
When the injection nozzle 15 is pushed in from the front end opening of the lock member 39, the claw portions 39 of each lock member 39 are inserted into the concave ring portion 19 at a position where the tip end abuts on the base end of the valve body 28 via the rubber packing 45.
a enters, and the outer coil body 29 is
Is urged forward to press each lock member 39 inward, so that the state is firmly maintained and the injection nozzle 1
5 is prevented. In this state, when the release wire 42 is pulled rearward, the outer fitting body 29 slides rearward against the bias of the compression coil 34, whereby each lock member 39 is opened and its claw portion 39a is released. Can be freely released from the concave ring portion 19, and conversely, the claw portion 39 a is pushed outward by the outer peripheral surface of the injection nozzle 15 to be unlocked, and the injection nozzle 15 can be removed from the valve body 27, that is, the air valve 26. Becomes

Next, the launch pad of the water rocket will be described. As shown in FIG. 8, the launch pad B is tilted upward to the distal end so that the support rod 4 can be tilted at a predetermined angle from the ground.
6 and two round pipe-shaped leg rods 47 for supporting the supporting rod portion 46. The support rod 46 has a rectangular cross section as shown in FIG.
A longitudinal groove 48 is formed along the longitudinal direction.
A transverse section L is located on the back side of the lower side wall 46a on both sides of the vertically elongated groove 48 and the roller 25 of the support member 23 of the water rocket A is inserted along the longitudinal direction thereof.
The guide rails 49 of the mold are attached to face each other. Along with the guide rail 49, the support rod 46 is divided into two parts at the front and rear, and a seal is fitted so that the rear end of the front half support rod 46b projects to the front end of the rear half support rod 46c as shown in FIG. The stopper 68 is fitted. The sealing plug 68 is provided on its outer peripheral surface with an engaging ball 51 which can be retracted by a spring 50, and the engaging ball 51 is fitted into a concave portion 52 provided on the inner peripheral surface of the front half supporting rod portion 46b. Like that.

A pedestal 53 is disposed at the lower end of the support rod 46, and a lower end of the support rod 46 is pivotally mounted on an upper fork of a pedestal 54 erected on the upper surface of the support 53 so that the lower end of the support rod 46 can tilt.
Is done. A fixing member 56 for fixing the pair of leg rods 47 is integrally provided at a front end of the rear half supporting rod portion 46c. The fixing member 56 is a main arm piece 5 that freely rotates on both side surfaces of a frame body 57 that is fitted and fixed to the rear end supporting rod portion 46c.
Each of the main arm pieces 58 has a sub-arm piece 59 of approximately the same size superimposed thereon. And these main arm pieces 58
Each of the leg rods 4 is attached to an annular cylinder portion 60 formed by
7 are inserted, and the main arm piece 58 and the sub arm piece 59 are screwed together with the screws 61, whereby the leg rods 47 are fixed. Each of the leg rods 47 has a known configuration in which a plurality of pipes each having a small diameter can be sequentially connected and the length thereof can be adjusted so as to be able to expand and contract.

As shown in FIG. 9, a relatively long compression spring 62 serving as a resilient means is provided inside the support rod portion 46 and located on the rear support rod portion 46c side. Is being worn. Then, the top of the water rocket A
An annular extruded plate 64 for extruding the water rocket A is provided integrally to apply acceleration to the water rocket A. One end of the winding wire 65 is fixed to the top 63. The winding wire 65 extends rearward in the compression spring 62, and extends outward from an outlet 67 formed in the lower side wall 46 a of the support rod 46 via a restraining frame 66 in which the rear end of the compression spring 62 is received. Drawn out. And
The other end of the winding wire 65 is wound by a wire winding device 72 described later.

Then, each roller 25 is inserted from the tip of the guide rail 49 to support the water rocket A with the supporting rod 46.
And the rear end thereof is received by the extruded plate 64. Then, in this state, when the winding wire 65 is pulled, the compression spring 62 is contracted by a predetermined amount, and when the winding wire 65 is opened, the compression spring 62 is restored, and the water rocket A is accelerated by the restoring force. . The restoring force of the compression spring 62 is so strong that the top 63 may collide with the sealing plug 68 provided at the tip of the rear support rod 46. Therefore, a urethane rubber 69 for cushioning and a high-density sponge 70 are integrally provided inside the sealing plug 68. On the other hand, a compression spring 71 is attached to the front end surface of the top 63 and collides with the compression spring 71 so as to absorb the remaining force of the restoring force of the compression spring 62.

Numeral 72 denotes a wire winding device as a locking means provided at the rear part of the support rod 46. As shown in FIGS. The rotating shaft 74 is suspended horizontally.
A drum 75 for winding the winding wire 65 and a sprocket 76 are integrally provided on one side thereof. A handle 77 is detachably attached to one end of the rotary shaft 74. A sprocket 76 is provided at the rear of the box frame 73 so as to face the sprocket 76.
Is provided, which can stop rotation in only one direction, that is, the direction in which the winding wire 65 is pulled out. The fastener 78 is pivotally supported by a support shaft 79 and is swingably provided. Further, a torsion spring 79a is mounted on the support shaft 79, whereby the fastener 78 is urged such that one end thereof always meshes with the sprocket 76. Also,
One end of a push-pull wire 80 is attached to the other end of the fastener 78, and a firing handle 82 that disengages the fastener 78 from the sprocket 76 by gripping a lever 81 at the other end of the push-pull wire 80 is provided. Has been attached. Drum 75 located on the other side of the sprocket 76
A pin hole 83 is formed in a drum plate 75a provided integrally with the box frame 73, and a lock pin 85 can be inserted into the pin hole 83 through a window 84 formed in a side wall of the box frame 73. The rotation of the sprocket 74 is stopped by hitting the inner peripheral edge of the sprocket 84. This is to prevent the water rocket A from being erroneously fired by holding the firing handle 82 by mistake.

On the upper surface of the support rod 46, a protractor 86 for adjusting the inclination angle of the support rod 46 and a leveler 87 for adjusting the horizontality of the right and left are arranged. A storage device 90 for storing a guide rope 89 attached to the water rocket A is provided between the two leg rods 47. When the water rocket A is made to fly from the bucket on which the worker of the aerial work vehicle (not shown) rides,
A hanging bracket attached to the support rod portion 46 for suspending the launch table B on a hook provided on the bucket. This is effective when there are obstacles such as trees on the flight path from the ground.

In this embodiment, three tanks 1 are used for the water rocket A.
Or two or more, and conversely, two can be used. Further, although the compression spring 62 is used as one of the resilient means, the water rocket A may be pulled out by using a tension rubber or a tension coil spring.

The water rocket and the launch pad of the water rocket according to the present invention have the above-described configuration. Next, the procedure of launching the water rocket will be described. First, FIG.
The launch table B is set up by extending the two leg rods 47 on the ground as shown in FIG. Next, the injection nozzle 15 of the water rocket A
Is removed, and a predetermined amount of water is poured into the tank 1 from the outlet 1c at the rear end. Then, after the ejection nozzle 15 is attached again, the air valve 26 is attached to the ejection nozzle 15. In this state, the roller 25 is inserted into the guide rail 49 from the tip of the guide rail 49, and the water rocket A is slid along the guide rail 49. Let me catch it. At this time, the distal end of the guide rope 89 in the storage device 90 is inserted into a small hole 92 formed at the rear end of the water rocket A and is fixed. Further, the rear end of the release wire 42 attached to the air valve 26 is moored to the front end of the box frame 73 through the through hole 64 a of the extrusion plate 64. Release wire 42
As shown in FIG. 16, while the water rocket A is moving along the guide rail 49, the length is set to be straight and not to extend any more. In this state, the handle 77 of the box frame 73 is rotated to take up the winding wire 65.
Is wound around the drum 75. At this time, since the sprocket 76 and the fastener 78 are engaged with each other, the drum 75 rotates in the direction in which the winding wire 65 is wound, but does not rotate in the opposite direction. In this manner, the winding wire 65
And is stopped when the extruded plate 64 reaches a predetermined position as shown by a chain line in FIG. Then, the lock pin 85 is inserted into the pin hole 83 of the drum plate 75a and locked, thereby preventing unnecessary rotation of the sprocket 76.

Next, an air outlet (not shown) of the air compressor is connected to the valve body 28 of the air valve 26 to send a predetermined amount of air into the tank portion 1. Then, the process waits until all the water in the tank unit 1 is collected on the injection nozzle 15 side.
Further, fine adjustment of the inclination angle and direction of the support rod portion 46 is performed. When the preparation is completed in this way, the lock pin 85 is pulled out from the pin hole 83 and the firing handle 82 is grasped.

By grasping the lever 81 of the firing handle 82, the fastener 78 comes off the sprocket 76,
The sprocket 76 is allowed to rotate freely. Accordingly, the compression spring 62 is restored by the restoring force, and accordingly, the pushing plate 64 pushes out the water rocket A as shown by the solid line in FIG. The water rocket A advances to the tip side along the guide rail 49 while being pushed by the push plate 64. At this time, when the water rocket A reaches the middle of the guide rail 49, the solution wire 42 is fully stretched, and when the water rocket A further advances, the air valve 26 is released from the injection nozzle 15 and the water is vigorously supplied from the injection port 3. Is injected, and the water rocket A flies by itself.

Therefore, for example, as shown in FIG. 17, when the electric wire is extended across the slopes C1 and C2 facing each other across the valley between the mountains, the slope extends from one slope C1 to the other slope C2. By hitting the water rocket A with the guide rope 89, the guide rope 89 can be sent to the other inclined surface C2 almost instantaneously. The electric wire connected to the guide rope 89 is to be picked up. As described above, the present invention comprises a simple device, and has no cost since the propulsive force is jetted water. Also,
Since it can be operated with simple operations, it can be used for rescue activities such as passing a rope to the other shore in an emergency, in addition to laying electric wires. In addition, recycling an empty PET bottle as a tank for a water rocket will help.

[0029]

As described above, the water rocket and the launch pad of the water rocket according to the present invention apply acceleration to a water rocket filled with compressed air and water by means of the launch pad of the launch pad, and then supply water. Since the jets are ejected and fly with the propulsion force, no special permission is required in terms of handling, anyone can operate, and there are no restrictions on operators and work schedules. Therefore, there is an effect that work can be performed easily and quickly. Further, there is an effect that the structure is simple and the production is easy, and the production cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a water rocket.

FIG. 2 is a front view of a water rocket.

FIG. 3 is an enlarged cross-sectional view of a connection portion of a tank unit.

FIG. 4 is an enlarged cross-sectional view of an injection port portion of a water rocket.

FIG. 5 is a sectional view taken along line XX of FIG. 2;

FIG. 6 is an exploded perspective view of the air valve.

FIG. 7 is a cross-sectional view showing a state in which an air valve is attached to an injection port.

FIG. 8 is an overall perspective view of a launch pad.

FIG. 9 is an enlarged front view of a support rod.

FIG. 10 is an enlarged sectional view taken along line YY of FIG. 8;

FIG. 11 is a partial cross-sectional plan view of a joint portion of the support rod portion.

FIG. 12 is a front cross-sectional view of a portion of the launching table where the wire winding device is provided.

FIG. 13 is a sectional plan view of the same.

FIG. 14 is a front view of the launch pad with the water rocket set.

FIG. 15 is a front sectional view of an extruded plate portion of the launch pad.

FIG. 16 is a front view of a launch pad for explaining the launch operation of the water rocket.

FIG. 17 is a schematic view illustrating a method of using a water rocket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank part 3 Injection port 23 Support member 26 Opening means (air valve) 42 Opening means (release wire) 46 Support rod part 62 Resilient means (compression spring) 72 Locking means (wire winding device) 89 Guide rope A Water Rocket B launch pad

Claims (2)

[Claims] A plurality of tank portions arranged vertically and communicated with each other, an injection port provided at a lower tank portion, and an air valve for sealing the tank portion being removably attached to the injection port; A water rocket in which water and compressed air are sealed in a section, and the air valve is removed so that water is jetted from the jet port to fly.
A support member for arranging a water rocket movably on the launch pad is provided on the outer peripheral surface thereof, and a release wire of a predetermined length attached to the launch pad side is connected to the air valve. Water rocket. 2. A launch pad for a water rocket that flies by injecting water from an injection port at a lower end, wherein the support rod portion is installed such that the water rocket can move and a tip side is inclined upward. Resilient means for resiliently urging the water rocket along the support rod toward the tip thereof, locking means for restraining or releasing the resilient means, and closing means for closing or opening the injection port of the water rocket. The stopper means is released while the lock means is released and the water rocket is moved along the supporting rod by the resilient bias of the resilient means, so that water can be sprayed from the outlet. A launch pad for water rockets, characterized in that: