JPH04319983A - Method for changing and visualizing motion of water drop in water flow containing water drop - Google Patents

Abstract

PURPOSE:To provide a fountain and a waterfall of high appreciation value by irradiating the continuous strobe light of a fixed luminous cycle to a group of water flows having characteristics differently changed in underwater sound frequency, frequency phase, frequency change speed, dephased frequency and the like. CONSTITUTION:Respective nozzles 3 and 3a are fitted in parallel alternately to the ends of a plurality of tubes 2 and 2a branched from devices 1 and 1a for generating water flows containing water drops. Water flows 5 and 5a containing water drops 4 and 4a are jetted from the nozzles 3 and 3a. When the continuous strobe light of a fixed luminous cycle is irradiated to the water flows 5 and 5a, the water drops 4 and 4a glitter beautifully and an artificial waterfall for appreciation is obtained. In this case, when the nozzles 3 and 3a are directed up, the water flows 5 and 5a containing the water drops 4 and 4a turns into a fountain to generate a water flow along a parabolic line. Furthermore, the generation state of the water drops 4 and 4a changes, when the frequencies and phases of vibrations for the devices 1 and 1a to generate an underwater sound are differently changed. By irradiating strobe light, therefore, the motions of the water drops 4 and 4a show changes different from each other.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for making fountains and waterfalls look beautiful for the purpose of admiration or observation by changing the movement of water droplets in a stream of water.

0002

[Prior Art] Underwater sound is generated by imparting periodic vibrations to a water stream, and when the dense part of this underwater sound reaches a narrowed spout, the molecular motion of the water increases and the pressure increases. When this part with active molecular motion ejects from the spout, that part forms water droplets in the ejected water stream, and a method of expressing water flow by shining a continuous strobe light on the water stream containing these water droplets to make the water droplets shine. However, Japanese Patent Publication No. 61-26068 (Patent No. 1371156) related to the present applicant's invention
No.) ``Method for creating water flow including water beads using underwater sound''.

[0003] A device for obtaining a multi-branched water fountain for ornamental purposes by utilizing the above-mentioned ``method of creating a water stream containing water beads using underwater sound'' is disclosed in Japanese Patent Application No. 2-3, which is also related to the present applicant's invention.
No. 24116 "Multi-branched water flow generator including underwater sound" has been filed.

Furthermore, by alternately irradiating the multi-branched water stream with continuous strobe light of two or more colors to make water droplets that shine in each color light appear on each fountain stream, and further by changing the emission frequency of each color strobe light. A method of increasing the ornamental value by making the polka dots of each color strobe light appear as separate objects with different movements is disclosed in Japanese Patent Application No. 2-253, which is also related to the present applicant's invention.
No. 533 ``Method for identifying moving granular objects''.

[0005] In each of the above-mentioned inventions, the generation cycle of water beads generated in a water stream is synchronized with the vibration frequency of underwater sound, and when a continuous strobe light is irradiated to a water stream containing these water drops, the continuous strobe light emission is If the vibration frequency of the underwater sound matches the vibration frequency of the underwater sound, the water droplets in the water stream will appear stationary, and if the vibration frequency of the underwater sound and the emission frequency of the continuous strobe light differ, the water droplets in the water stream will appear to be rising or falling. be.

[0006] As a method of changing the movement of water droplets in water flow using this principle, the above-mentioned patent application No. 2-25 has been proposed.
The method described in the specification of No. 3533, ``Method for Identifying Moving Particulate Objects,'' was adopted by changing the frequency of continuous strobe light.

[0007]

[Problem to be Solved by the Invention] The above-mentioned conventional method of changing the movement of water droplets in a water stream can only produce simple changes in which multiple streams of water all rise, stand still, and descend in the same way. There was a problem that the ornamental value was insufficient. Instead of changing the frequency of the continuous strobe light, the same result can be obtained by changing the frequency of the water droplets by changing the frequency of the underwater sound.

[0008] Furthermore, when continuous strobe light with a constant light emission period is irradiated on a combination of water flows with different water droplet generation periods, which are obtained by setting a plurality of water droplet-containing water flow generators to different underwater sound vibration frequencies. For example, if the underwater sound frequency is (A)...3500 r. p. m, (B)...
3600r. p. m, (C)...3700 r.
p. When a continuous strobe light with a constant light emitting period is simultaneously irradiated onto a water droplet-containing water stream obtained from a water droplet-containing water stream generating device of 5 m, the movement of the waterdrops will be in the following state.

(a) Light emission period 3400 r. p. m
In the case of water flows (A), (B), and (C), the droplets appear to be descending, but the descending speeds are as follows: (A), (B)
, (C), and the descending speed of (C) is so high that it is difficult to see and is very tiring to the eyes. (b) Light emission period 3600 r. p. In the case of m,
The droplets in the water stream (A) appear to be rising, the droplets in the water stream (B) are stationary, and the droplets in the water stream (C) appear to be descending. (c) Light emission period 3800 r. p. In the case of m,
Water flows (A), (B), and (C) all appear to be rising water droplets, but the rising speed increases in the order of (C), (B), and (A), and the rising speed of (A) is It's too big and hard to see and my eyes get very tired.

[0010] As described above, even if a plurality of droplet-containing water flow generators with different droplet generation cycles are combined, if the droplet generation cycle is fixed, there will be little change in the movement of the droplets and the ornamental value will be insufficient. In some cases, it is very difficult to see and can cause eye strain.

[0011] It is an object of the present invention to find a means to solve the above-mentioned problems and increase the ornamental value of fountains, waterfalls, etc. made of a water stream containing water beads by freely changing the rising, standing still, and descending of the water beads without causing eye strain. Ta.

0012

[Means for Solving the Problems] The present invention provides an underwater sound generation source for a plurality of water droplet-containing water flow generators that generate water flow containing water beads by imparting periodic vibrations to the water flow and introducing underwater sound. By individually changing the underwater sound generation conditions such as the frequency and phase of the alternating current, the speed of frequency change, and the shift in the phase of frequency change, we can combine multiple types of water flow in which the period or phase of water droplet generation changes differently. In this method, the movement of water droplets in a water flow containing water droplets is changed and shown by forming a group of water streams and irradiating the group of water streams with continuous strobe light having a constant light emission period.

[0013]

[Effect] By changing the underwater sound generation conditions (for example, the frequency of vibration applied to running water) of two or more water droplet-containing water flow generators differently, the generation period and phase of water droplets can be changed differently. Fountains and waterfalls can be obtained from a group of streams that are a combination of streams containing polka dots. When these fountains and waterfalls are illuminated with a continuous strobe light with a fixed emission cycle, you can enjoy beautiful fountains and waterfalls where the water droplets rise, stop, and descend in different movements. Furthermore, if you alternately irradiate two or more different colors of continuous strobe light with a constant flash period, you can enjoy even more beautiful fountains and waterfalls.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS This invention will be explained in detail below based on embodiments shown in the drawings. FIG. 1 shows an example in which a waterfall is formed by a water stream containing water beads as an embodiment of the present invention, (1), (1)
a) is a water droplet-containing water flow generator, and a plurality of tubes (four in the figure) branched from the water droplet-containing water flow generators (1) and (1a), each of which has a plurality of tubes (2) and (2a) at their tips, respectively. Nozzles (3) and (3a) are attached alternately in parallel, and water drops (4) are emitted from these nozzles (3) and (3a).
), (4a) are ejected, and when these water streams (5), (5a) are irradiated with continuous strobe light with a fixed lighting cycle, the water beads (4), (4a) shine beautifully. hand,
An ornamental waterfall can be obtained. In this case nozzles (3), (3
When a) is turned upward, the water flow containing polka dots (5), (5a)
becomes a fountain that draws a parabola.

[0015] And, the water droplet-containing water flow generating device (1) and (
By changing the frequency and phase of the vibration for underwater sound generation in 1a) differently, the generation state of water beads (4) and (4a) changes, so if you irradiate them with continuous strobe light with a fixed light emission period, , the rising, resting, and descending movements of the water beads (4) and (4a) show different changes, resulting in extremely beautiful waterfalls and fountains.

The water droplet-containing water flow generators (1) and (1a) are disclosed in Japanese Patent Application No. 2-3241 related to the invention of the present applicant mentioned above.
It has almost the same structure as the main part of No. 16 "Multi-branched water flow generator including underwater sound", and the details are shown in Figures 3 and 4. That is, (11) is a cylinder with a bottom, (12) is a main cylinder,
(13) is a lid, and the lower end of the main cylinder (12) is a vibrating membrane (14) made of an elastic material at the upper end of the bottom cylinder (11).
A water supply pipe (15) is provided on the peripheral wall near the lower end of the main cylinder (12), and the upper end of the main cylinder (12) is further closed with a lid (13). At the center of the back side, there is an inverted cone (16) hanging down from the center of the main body cylinder (12), and there are multiple (12 in the figure) water flow branch pipes (12 in the figure) on the circumference near the outer periphery of the top side. 17) is provided facing upward to which the tube (2) or (2a) is connected.

A cylindrical moving coil (18) is attached to the center of the lower surface of the vibrating membrane (14), and a current is supplied from the outside through a lead wire (19).

(20) is a fixed permanent magnet, which is attached to a cylinder with a bottom (1
1) with a gap (22) between the vibrating membrane (14) and a ring-shaped groove (21) in the center of the top surface.
is formed, and the lower half of the moving coil (18) is fitted into this ring-shaped groove (21) with a gap between the inner and outer peripheries to generate a magnetic field for driving the moving coil (18). It has the function of creating.

(23) is a sponge with a movable coil (18
) and a fixed permanent magnet (20) inside the cylinder.
The gap (22) between the two prevents the vibrating membrane (14) from sagging due to the weight of the moving coil (18) and water pressure.

With the above configuration, water is supplied from the water supply pipe (15) into the main body cylinder (12), and the lead wire (19)
When an alternating current is passed through the moving coil (18), the moving coil (18) vibrates at a frequency equal to the alternating current frequency under the force of the magnetic field of the fixed permanent magnet (20), and the vibrating membrane (14) vibrates accordingly. The vibration vibrates the water in the main body cylinder (12) and generates underwater sound, and this underwater sound is formed by the inner circumference of the main body cylinder (12) and the outer circumference of the inverted cone (16). The water flow rises through the water filling the space, which has a ring-shaped cross section and narrows upward, enters the tube (2) or (2a) through the 12 water flow branch pipes (17), and enters the nozzle (3). Or when (3a) is reached, the underwater sound increases the movement of water molecules and the nozzle (3)
or (3a) spews out water beads (4) or (4a)
Thus, a water stream (5) or (5a) containing water beads is generated, and the number of water beads (4) or (4a) generated per unit time is equal to the frequency of the alternating current.

[0021] Thus, the frequency of the underwater sound of the water droplet-containing water flow generating device (1) is set to 3500r. p. m to 3700r
．． p. m, and the frequency of the underwater sound of the water droplet-containing water flow generator (1a) was set to 3700 r.m. p. m to 3500r.
p. A fixed luminescence period of 3 is applied to the polka dot-containing water flows (5) and (5a), which are generated by slowly changing both at the same speed.
600r. p. When continuous strobe light of m is irradiated, the water beads (4) in the water flow (5) containing water beads gradually slow down from a high rising speed, finally come to rest, and then begin to descend and gradually increase the descending speed. Polka dots (4) of water stream containing polka dots (5a)
a) starts from a fast descending speed, gradually slows down, finally comes to a standstill, and then begins to rise and gradually increases its ascending speed. That is, the water beads (4) and (4a) in the water flows (5) and (5a) containing water beads move in opposite directions.

The movement of the water beads (4) and (4a) is achieved by changing the frequency, phase, speed of frequency change, phase shift of frequency change, etc. of the alternating current of the movable coil (18), thereby controlling the water flow containing water beads. The movements of the water dots (4) and (4a) in (5) and (5a) can be made the same, reversed, or shifted freely.

FIG. 2 shows another embodiment in which three water droplet current generating devices (1), (1a), and (1b) are used. ), (1
In b), there are multiple branch streams that are combined to form a stream group like Niagara Falls, as shown in Figure 1, but to avoid complicating the diagram, only one stream is shown. Components that are the same as those in the embodiment of FIG. 1 will be described with the same reference numerals.

[0024] Water streams containing underwater sound are passed through tubes (2), (2a), (2b) from the three water droplet stream generators (1), (1a), (1b) shown in Figures 3 and 4. Water beads (4) from upward nozzles (3), (3a), (3b),
(4a), (4b) Containing polka dot-containing water flow (5), (5a)
, (5b), ejecting in a parabolic shape, and a fixed emission period of 3600 r. p. m continuous strobe light (6
).

[0025] These three water droplet current generating devices (1), (1
By slowly changing the frequency of the underwater sounds in a) and (1b), it is possible to change the droplet-containing water flows (5), (5a), and (5b) as follows. (a) Raise the dots (4), (4a), and (4b) together. (b) Raise the water dot (4), make the water dot (4a) stand still, and lower the water dot (4b). (C) Lower the dot (4), make the dot (4a) stand still, and raise the dot (4b). (d) Lower the water dots (4), (4a), and (4b) together. In this way, it is possible to express waterfalls and fountains that change in various ways.

[0026]

[Effects of the Invention] According to the method of changing the movement of water beads in a water flow containing water droplets according to the present invention as described above, a plurality of water flow generators containing water droplets that can independently change the frequency of underwater sound can be used. A large number of ejected water streams containing water beads are combined to form a group of water streams in which the frequency and phase of the underwater sound, the speed of frequency change, the shift in the phase of frequency change, etc. of each water flow generator containing water beads are changed differently. By irradiating continuous strobe light with a fixed light emission period, the movement of the water droplets changes in various ways, creating fountains and waterfalls that are extremely beautiful and have high ornamental value.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing one embodiment of the present invention.

FIG. 2 is a schematic diagram showing another embodiment of the invention.

FIG. 3 is a central vertical cross-sectional side view showing one embodiment of a water droplet-containing water flow generating device.

FIG. 4 is a plan view of the water droplet-containing water flow generator shown in FIG. 3;

[Explanation of symbols]

1, 1a, 1b... water droplet-containing water flow generator 2, 2a, 2
b...Tubes 3, 3a, 3b...Nozzles 4, 4a, 4b...Water beads 5, 5a, 5b...Water stream containing water beads 6...Continuous strobe light

Claims (1)

[Claims] [Claim 1] Water beads are generated by individually changing the underwater sound generation conditions of a plurality of water droplet-containing water flow generators that generate water flow including water beads by imparting periodic vibrations to the water flow and adding underwater sound. Movement of water droplets in a water flow containing water droplets, characterized in that a water flow group is formed by combining a plurality of types of water flow whose periods or phases change differently, and the water flow group is irradiated with continuous strobe light with a constant light emitting cycle. How to change and show.