JPS6193854A - Fountain apparatus - Google Patents

Abstract

PURPOSE:To display a fountain posture rich in three-dimensional feeling and full of variety as display fountain with good response, by making the height of the water column of each fountain nozzle variable without changing the pressure of a pump by using a variable throttle valve. CONSTITUTION:After the opening and closing valve 4 corresponding to a fountain nozzle 1 used in three-dimensional display is opened, the display pattern programmed by the control signal from a control part 7, that is, the height of the water column of the individual fountain nozzle is made variable by the adjustment of the opening degree of a variable throttle valve 5 with the elapse of time. A fountain apparatus is the gathering of the heights of the water columns of the individual fountain nozzles 1 as mentioned above and a fountain posture is formed as a whole and the three-dimensional change of the posture is formed. The variable throttle valve 5 has a high speed throttling mechanism like a needle valve and changes the flow passage cross-sectional area of a line at a high speed by a control signal.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is a display fountain device equipped with a plurality of fountain nozzles. This invention relates to a fountain device that changes the appearance of the entire fountain created three-dimensionally in accordance with music and for display purposes.

(In the case of the above-mentioned musical fountains and digital display fountains in the prior art, the three-dimensional change in the fountain's appearance is mainly created by opening and closing a plurality of fountain nozzles and changing the height of the water column.
Conventionally, the nozzle was opened and closed using an electric valve, and the height of the water column was controlled by the rotational speed of a pump, which resulted in poor responsiveness, especially when changing the height of the water column. Otherwise, the shape of the fountain cannot follow the melody, and changing the pump rotation speed only changes the height of the water column of the entire fountain, and the height of the water column at each fountain nozzle cannot be changed individually, so the change in shape is monotonous. This resulted in an unsatisfactory three-dimensional display.

(Problems to be Solved by the Invention) In view of the above points, the present invention makes it possible to vary the height of the water column in each fountain nozzle, thereby making it possible to display the original three-dimensional display, and to respond to the height of the water column of the fountain nozzle. To provide a fountain device with sufficiently high speed operation.

(Means for Solving the Problems) The present invention uses a variable throttle valve in a fountain nozzle to speed up changes in water column height and improve responsiveness to programmed control signals.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 indicates one of a plurality of fountain nozzles provided in a fountain device, and each fountain nozzle 1 is connected to a water pump 2 through a pipeline. 3, each fountain nozzle 1
An on-off valve 4 and a variable throttle valve 5 are installed in series in a line near the inlet of the valve, and six valves 4 and 5 are electrically connected to a control section 7 programmed by an input section 6. in this case,
The control unit 7 is a microcomputer.

When using the fountain device, after the on-off valve 4 corresponding to the fountain nozzle 1 used for the three-dimensional display is opened, the display pattern programmed by the control signal from the control unit 7, that is, the individual fountain nozzles,
For L, the water column height is varied by adjusting the opening of the variable throttle valve 5 over time.

For example, the variable throttle valve 5 is opened wide (water column height is small or large), then completely stopped (water column height is zero, then opened small) (
The height of the water column is varied steplessly and minutely, and the fountain device as a whole is made up of a collection of the heights of the water column of the individual fountain nozzles. The appearance of a fountain is created, and a three-dimensional change in appearance is also created.

The variable throttle valve 5 may be any type as long as it has a high-speed throttle mechanism, such as a needle valve, and can change the cross-sectional area of the flow path of the line 3 at high speed in response to a control signal.

Also, instead of controlling each individual fountain nozzle,
It is also possible to create bundles of fountain nozzles, such as two or three trees, and simultaneously control the height of the water column of this bundle.

Furthermore, the on-off valve 4 may be omitted.

(Effects) According to the present invention, the height of the water column of each fountain nozzle can be varied without changing the pump pressure by using a variable throttle valve. It can be displayed in a digital display fountain, and the variable throttle valve dramatically improves responsiveness to control signals, allowing subtle changes in the fountain's appearance.

[Brief explanation of drawings]

The drawing is a configuration diagram of a fountain device showing an embodiment of the present invention. 1... Fountain nozzle, 3... Water supply pipeline, 5...
...Variable throttle valve, 6.Input section, 7.Control section.

Claims (1)

[Claims] 1) In a device equipped with multiple fountain nozzles, a variable throttle valve is installed in the inflow side pipe of each fountain nozzle, and these variable throttle valves are connected to a device that programmatically controls the valve opening. A fountain device that changes the height of the fountain.