JP2002204994A - Fountain apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fountain apparatus not requiring a driving device for moving nozzles, having a simple structure and capable of developing diverse fountain patterns. SOLUTION: The fountain apparatus has such a structure that a plurality of spin nozzles 1 are connected to a water supply pipe 11. Each of the spin nozzles 1 is constituted so that the base end of a twist pipe 2 is provided to a bearing block 3 in a freely rotatable manner and the intermediate part of the twist pipe is gently curved in the X-direction crossing the axial line of the twist pipe at a right angle and the leading end thereof is gently curved in the Y-direction crossing the X-direction at a right angle with respect to the intermediate part of the twist pipe 2 and the jet orifice provided to the twist pipe is directed obliquely and the twist pipe is automatically revolved accompanying the jet of water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fountain device used in a park or a garden.

[0002]

2. Description of the Related Art Conventionally, in order to form various fountain patterns using a plurality of nozzles, the shape of the nozzles themselves must be complicated,
Methods such as complicating the movement of the nozzle are employed.

[0003]

However, the more complicated the shape of the nozzle itself, the higher the unit price of the nozzle.
When the movement of the nozzle is complicated, not only is a complicated driving device required, but also the driving source becomes large-scale, which results in extremely expensive equipment and maintenance.

An object of the present invention is to provide a fountain device that can display various fountain patterns with a simple structure without requiring a driving device for moving a nozzle.

[0005]

A fountain device according to the present invention has a structure in which a plurality of spin nozzles are connected to a water supply pipe, and each of the spin nozzles rotatably bears a base end of a twist pipe on a bearing block. The intermediate portion of the twist pipe is gently curved in the X direction orthogonal to the axis, and the tip is gently curved in the Y direction orthogonal to the X direction with respect to the intermediate portion. The mouth is directed obliquely, and the twist pipe turns automatically with the injection of water.

Accordingly, the water supplied from the water supply pipe is jetted from a plurality of spin nozzles at the same time. Since the twist pipe of each spin nozzle automatically turns with the jet, the jet water is also discharged. It turns and reveals a complex jet pattern as a whole.

[0007] If a plurality of spin nozzles having different lengths of the twist pipe are connected to the water supply pipe, a three-dimensional and more complicated spray pattern is obtained.

By providing a rectifying member at the ejection port of the spin nozzle, the ejection mode and ejection range from each spin nozzle can be adjusted.

In each spin nozzle, a male screw joint communicating with the twist pipe is protruded from the bearing block, and this male screw joint is screwed with a female screw portion of the water supply pipe to connect each spin nozzle to the water supply pipe. Can be easily exchanged.

[0010]

Next, embodiments of the present invention will be described in detail with reference to the drawings.

First, the structure of a spin nozzle 1 used in the present invention will be described with reference to FIGS.
The spin nozzle 1 includes a bearing 4 having a base end 2 a of a twist pipe 2 inside a hexagonal bolt-shaped bearing block 3.
It is a bearing rotatably supported by a twist pipe 2
Most parts other than the base end 2a protrude from the bearing block 3. In this bearing, the bearing 4 is sandwiched between a double flange 5 screwed into a male screw 2d on the outer periphery of the base end of the twist pipe 2 and a retaining ring 6 fitted with an inner peripheral edge in a groove on the outer periphery of the twist pipe 2. The bearing 4 is held down by a double holding cover 7 screwed into the female screw 3 a in the opening of the bearing block 3, and the bearing 4 is
And the twist pipe 2 is prevented from being pulled out of the bearing block 3.

The intermediate portion 2b of the twist pipe 2 is gently curved in the X direction perpendicular to the axis with respect to the straight base end 2a, while the distal end 2c is X-shaped with respect to the intermediate portion 2b.
The twist pipe 2 is automatically curved with respect to the bearing block 3 by the water jetting force from the jet port 8 because the jet port 8 is gently curved in the Y direction perpendicular to the direction, and the jet port 8 at the tip is obliquely directed. It turns.

A straightening member 9 having a star-shaped cross section as shown in FIG. 3 is fitted into the injection port 8 of the twist pipe 2.
On the other hand, a male threaded joint 10 is integrally provided on the bearing block 3 on the surface opposite to the projecting side of the twisted pipe 2, and the male threaded joint 10 and the proximal end 2 a of the twisted pipe 2 are in straight communication. Note that the rectifying member 9 is not limited to a star-shaped cross section, and can have various cross-sectional shapes.

The fountain device of the present invention is constituted by using a plurality of the above-described spin nozzles 1, and FIG. 4 shows an example thereof. In this example, a plurality of spin nozzles 1 are connected at a required interval to a water supply pipe 11 having a ring shape as a whole, and the length of the twist pipe 2 is longer for some of the spin nozzles 1 than for others. Is a long one. In this case, each spin nozzle 1 is connected to the water supply pipe 11 by screwing the male screw joint 10 of the bearing block 3 with the female screw part of the water supply pipe 11.

In the case of FIG. 4, water is simultaneously sprayed from all the spin nozzles 1, but the fountains from each of the spin nozzles 1 individually turn, and some of the spin nozzles 1 have a length of the twist pipe 2. Since the length of the fountain is large, the fountain has a complicated fountain pattern. If a fixed nozzle 12 that does not swirl is arranged in the center of the ring-shaped water supply pipe 11, the fountain from the spin nozzle 1 will be
The fountain pattern turns around the fountain from the center.

The fountain pattern shows the overall shape of the water supply pipe 11 in FIG.
It can be freely changed and diversified easily by making it complicated as shown in FIG. 6 or making it three-dimensional as shown in FIG.

[0017]

According to the fountain device of the present invention, the water supplied from the water supply pipe is simultaneously jetted from the plurality of spin nozzles, and the twist pipe of each spin nozzle automatically turns. In addition, since the sprayed water also turns to show a complicated spray pattern as a whole, various fountain patterns can be displayed with a simple structure without a driving device for moving the nozzle.

[Brief description of the drawings]

FIG. 1 is a perspective view of a spin nozzle used in the present invention.

FIG. 2 is a sectional view thereof.

FIG. 3 is a perspective view of a rectifying member fitted to an injection port of a spin nozzle.

FIG. 4 is a perspective view of a first embodiment of the present invention in which a plurality of the spin nozzles are connected to a water supply pipe.

FIG. 5 is a perspective view of a second embodiment.

FIG. 6 is a perspective view of a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spin nozzle 2 Twist pipe 2a Base end 2b Intermediate part 2c Tip 2d Male screw 3 Bearing block 3a Female screw 4 Bearing 5 Flange 6 Retaining ring 7 Press cover 8 Injection port 9 Straightening member 10 Male screw joint 11 Water supply pipe

Claims (4)

[Claims] 1. A structure in which a plurality of spin nozzles are connected to a water supply pipe. Each of the spin nozzles has a bearing block rotatably bearing a base end of a twist pipe. , While gradually bending in the X direction perpendicular to the axis, the tip portion is gently curved in the Y direction perpendicular to the X direction with respect to the intermediate portion, and the injection port at the tip is obliquely directed, A fountain device characterized in that the twist pipe is turned automatically with the injection. 2. A plurality of spin nozzles having different lengths of a twist pipe are connected to a water supply pipe.
The fountain device as described. 3. The fountain device according to claim 1, wherein a rectifying member is provided at an injection port of the spin nozzle. 4. In each spin nozzle, a male screw joint communicating with the twist pipe is protruded from the bearing block, and this male screw joint is screwed with a female screw portion of the water supply pipe to connect each spin nozzle to the water supply pipe. The fountain device according to claim 1, 2 or 3, wherein