JPH01228571A - Fountain device - Google Patents

Abstract

PURPOSE:To obtain an excellent show effect by introducing water for fountain, which is fed intermittently and stored, into a fountain nozzle which is directed to make a jet stream of water form a parabolic orbit by means of compressed air, allowing the jet stream of water to form a parabolic orbit. CONSTITUTION:A fountain nozzle 1 directed to make a jet stream of water form a parabola is provided at the forward end of a fountain passage 2. Through a means 3 for introducing water for fountain, a specific, selected quantity of water for fountain W is admitted intermittently into the fountain passage 2 and stored therein. Further, a switching means 6, provided between a compressed air supply source 4 being installed so as to communicate with the passage 2 and the fountain passage 2, allows, when opened, compressed air of the supply source 4 to act on the water for fountain stored in the passage 2 as the pressure source for projecting water. As a result, a water rod having a clear section at its beginning and ending portions is projected to form a parabolic orbit, resulting in good appearances, so that an excellent show effect can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fountain device that intermittently ejects rod-shaped or string-shaped icicles having a selected axial length in a parabolic trajectory.

(Prior art) Conventionally, a rod-shaped or thread-shaped wood Y with a selected axis length is used.
As disclosed in Japanese Utility Model Publication No. Sho 60-144966, a disk-shaped shutter having a cut-out area facing the nozzle [1] is used as a fountain device that spouts out water intermittently in a parabolic manner. At the same time, the shutter is rotated so that water is jetted into the air when the notched part faces the nozzle opening, and the part other than the notched part is connected to the nozzle [ ]. A known device is designed to block the water spouted from the nozzle opening and reduce the jet stream into the air when the nozzle is in use.

(Problem to be Solved by the Invention) However, in the conventional water fountain device, the water jetted from the nozzle opening is cut (wood-cut) by a shutter to form a rod-shaped or string-shaped water column (hereinafter referred to as a water column). ), the cross-sectional shape of the starting and ending parts of the water rod does not have a --like circular cross-section like the other parts, and disturbances occur at both ends, causing It is not possible to make a jet of water with a clear cut end, and therefore the appearance is not good, the show effect is small, the topicality is poor, and the degree of attention is low.

The present invention was developed in view of the above circumstances, and a water cup with a clear cut at the beginning and end is made to flow in a parabolic trajectory, and as a result, the appearance is improved and an excellent show element is created. The purpose of the present invention is to provide a fountain device that can secure the following and improve topicality and attention.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a fountain nozzle in which jet water is oriented in a parabolic manner, a fountain system passageway in which the fountain nozzle is provided at the tip, and a fountain water introducing means for intermittently introducing and storing a fixed amount of fountain water into the fountain system passage; a compressed air supply source provided in communication with the fountain system passage; the compressed air supply source and the fountain system; An opening/closing means is provided between the passages and applies compressed air from a compressed air supply source as injection pressure to the fountain water stored in the fountain system passage when the fountain system passage is opened.

(Function) In the present invention, after a certain amount of fountain water selected by the fountain water introducing means is introduced into the fountain system passage and stored therein, the opening means is opened to supply compressed air from the compressed air supply source to the injection pressure. The fountain water is actuated to cause the fountain water to be jetted from the fountain nozzle in the form of a cup drawing a parabolic trajectory.

Further, the axial length of the water cup, which jets water in a parabolic trajectory, can be arbitrarily set depending on the amount of fountain water that is intermittently introduced into the fountain system passage from the fountain water introducing means.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram showing an embodiment of a fountain device according to the present invention. In the figure, a fountain nozzle l is formed in an inverted siphon shape with a circular passage cross section, and has a vertical axis. It has a vertical part IA, and an injection part IB that communicates with the vertical part IA and extends diagonally upward. , and is directed diagonally upward with an elevation angle of about 45 degrees.

A fountain system passage 2 is provided in communication with the rear end of the fountain nozzle l, that is, the upper end of the vertical portion IB.

The fountain system passage 2 is constituted by a tank that stores jet water.

A selected amount of fountain water is intermittently introduced into the fountain system passage 2 by the fountain water introduction means 3. That is, in this embodiment, the fountain water introduction means 3 includes a water source 3B that communicates with a tank constituting the fountain system passage 2 via a fountain water introduction passage 3A in which a valve v1 is interposed, and a fountain water introduction passage from the water source 3B. and an introduction amount setting mechanism 3D that selects and sets the introduction amount of fountain water W introduced into the fountain system passage 2 through 3A. / V2, V3,
A plurality of (three) overflow passages 3dl, 3d2° and 3d3 are provided in communication with the fountain system passage 2 and have mutually different height positions with V4 interposed therebetween.

A compressed air supply source 4 is provided in communication with the fountain system passage 2, and the compressed air supply source 4 is connected to a compressed air source 4A such as a near compressor and a compressed air source 4A via a passage 4B with a valve v5 interposed therebetween. It consists of a large capacity pressure regulating tank 4D that communicates with the The pressure regulating tank 4D communicates with the fountain system passage 2 through the air passage 5, and the air passage 5 is provided with a first opening/closing stage 6 formed of, for example, a solenoid valve.V6 in FIG. 0 indicates a pressure regulating valve.

Next, the operation of the above configuration will be explained.

First, with the valve v5 open, the compressed air source 4A is operated, and a large amount of compressed air with the pressure chi1 set to a predetermined value by the pressure regulating valve v6 is supplied to the pressure regulating tank 4D through the passage 4B.
to be stored.

On the other hand, the introduction amount setting mechanism 3D of the fountain water in the fountain water introduction means 3 sets the capacity of the fountain water W corresponding to the axial length WL of the water cup buttocks B jetted from the injection port 1b of the fountain nozzle 1. In order to secure fountain water W with a capacity Wv corresponding to the wooden cup -B of the axial length WL, the overflow valve v3 of the overflow passage 3d2 is opened, and the overflow valves V2. Keep V4 closed.

Then, the valve v1 is opened to introduce fountain water W from the water source 3B through the fountain water introduction passage 3A into the tank constituting the fountain system passage 2.

Fountain water with a selected capacity of l1lv in the fountain system passage 2.
is introduced, and when the water level -H reaches the level of the overflow passage 3d2 and overflow begins, the O/H flow valve v3 is closed, and the valve vl is closed to open the fountain pipe with the capacity WV. It is temporarily stored in the fountain system passage 2.

Next, the opening/closing means 6 is opened, and the compressed air stored in the large capacity pressure regulating tank 4D of the compressed air supply source 4 is suddenly introduced into the fountain system passage 2, and the stored fountain water is supplied. Apply compressed air pressure as injection pressure.

As a result, the fountain water stored in the fountain system passage 2 forms a parabola from the tip injection port 1b of the diagonally upward injection part IB of the fountain nozzle 1 as shown in FIG.
By repeating this operation, the water cup-B can be sequentially jetted as a tree 4*WB having an axial length WL.

In this way, the fountain river water W stored in the fountain system passage 2
is forced out by compressed air pressure from compressed air source 4. Therefore, the fountain water W flows out from beginning to end without interfering with other members, and the capacity of the pressure regulating tank 4D of the compressed air supply source 4 is secured to be considerably large.
The pressure drop in the pressure regulating tank 4D when the opening/closing means 6 is formed is suppressed as much as possible, and compressed air pressure of a predetermined pressure value is applied to the fountain water from beginning to end. It is possible to jet a water cup WB with a clear cut without causing any turbulence.

Since the axial length WL of the wooden cup WB corresponds to the capacity of the fountain water W stored in the fountain system passage 2, for example, the overflow passage 3
Open only the overflow valve v4 of d3, and open the other overflow valves V2. By closing V3 and increasing the capacity of the fountain water stored, a water cup WB with a long shaft length WL can be created.
8 of the fountain river water W that is stored by opening only the overflow valve v2 of the overflow passage 3dl.
By reducing the amount of alcohol, a water cup We with a short axial length WL can be made to jet.

Then, the time for introducing a fixed amount of fountain water from the fountain water introduction means 3 into the fountain system passage 2, the timing for introducing compressed air from the compressed air supply source 4 into the fountain system passage 2, and the water 44
By appropriately setting the compressed air pressure value that determines the parabolic locus drawn by the XWB and the elevation angle of the injection part 18 in the fountain nozzle 2 in a relative relationship, it is possible to print trees in various patterns with different tastes. KWB can be jetted,
By arranging a plurality of such fountain devices and staggering the timing of the jets from each fountain nozzle 1, it is possible to create an extremely innovative fountain in which many water cups WB fly in the air, creating a great show-like effect. This can increase topicality and attention.

In the +i7 embodiment, the overflow valve V2. Multiple overflow passages 3dl and 3d with V3 and V4 interposed respectively
Although the explanation is made using 2°3d3, a water level detector may be used instead.

(Effects of the Invention) As explained in 1-1, according to the present invention, compressed air introduced from a compressed air supply source by opening the opening/closing means is added to a fixed amount of fountain water that is intermittently introduced into the fountain system passage and stored. The pressure is applied as a jetting pressure, and the jet is made to form a parabolic water cup from the fountain nozzle, which is oriented in a parabolic manner and installed at the tip of the fountain system passage, so the cross-sectional shape of the starting end and the ending end is Similar shape to other parts,
That is, it is possible to jet a wooden cup with a clear cut without causing any disturbance at the starting end and the ending end. Therefore, compared to the conventional water cup from this type of device, the water cup has a sharp shape with both ends crossed with the axis and cut off, resulting in a better appearance and an excellent It is possible to secure show-like elements and improve topicality and attention.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing an embodiment of a water fountain device according to the present invention, and FIG. 2 is an explanatory diagram showing an example of a jet state of the water cup. l... Fountain nozzle 2... Fountain system passage 3... Fountain water introducing means 4... Compressed air supply source 6... Opening/closing means W... Fountain water patent applicant Kubota Iron Works Co., Ltd. Agent Patent Attorney Takashi Suzue - Figure 1 Figure 2

Claims (1)

[Claims] (1) A fountain nozzle in which jet water is oriented in a parabolic manner, and a fountain system passageway having this fountain nozzle at its tip;
a fountain water introducing means for intermittently introducing and storing a selected amount of fountain water into the fountain system passage; a compressed air supply source provided in communication with the fountain system passage; the compressed air supply source and the fountain; A fountain characterized by comprising an opening/closing means provided between the system passages and applying compressed air from the compressed air supply source as injection pressure to the fountain water stored in the fountain system passages when the fountain system passages are opened. Device.