JPH05111650A - Water spraying equipment - Google Patents

Abstract

PURPOSE:To make easy the projecting and sinking of spray nozzles to improve its workability by automatically raising and lowering a water pipe equipped with the spray nozzles as need arises in water spraying equipment. CONSTITUTION:A water pipe 2 equipped with spray nozzles 3, 3 is horizontally supported by a plurality of elevation devices 7, 7. Driving force of an elevation drive source 11 is transmitted to each of the elevation devices 7, 7... by a power transmission system 10 to raise and lower the water pipe 2 and the spray nozzles 3, 3....

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fountain device capable of automatically projecting and retracting a fountain nozzle above and below the water surface.

[0002]

2. Description of the Related Art Conventionally, for example, a fountain device installed in a fountain pond generally supports a water pipe in water by a plurality of support members (pipe supports) installed at the bottom of the pond, and a fountain nozzle is attached to the water pipe. It is configured so that the tip of the fountain nozzle projects above the water surface of the fountain basin, and the high-pressure water supplied from the high-pressure water supply source to the water pipe is spouted from the fountain nozzle.

Even if the tip of the fountain nozzle that is performing the fountain projects above the water surface and is viewed, it does not spoil the beauty of the fountain pond. However, if the tip of the fountain nozzle that stops the fountain projects above the water surface, this may cause a slight deterioration in the aesthetics of the fountain pond. Therefore, when the fountain device is not used, it is required to submerge the fountain nozzle under the water surface. On the other hand, there is a case where a fountain is temporarily constructed, for example, and used as an attraction. Since the fountain nozzles mentioned above can be a hindrance to the construction of such a stage,
It is required to submerge underwater.

However, in the conventional fountain device, in order to submerge the fountain nozzle under the water surface, it is necessary to perform a troublesome manual work for adjusting the support height of the water pipe by the above-mentioned support. In particular, a water pipe formed in a circular ring shape having a relatively large radius of curvature, that is, a water pipe of a type called a circle pipe is supported by a large number of supports, so that the fountain nozzle is submerged below the water surface. The work to do is considerably complicated and the workability is extremely poor. Needless to say, the work of causing the tip of the fountain nozzle submerged below the water surface to project above the water surface and returning to the position where the water can be spouted is also considerably complicated. That is,
In the conventional fountain device, since the fountain nozzle is projected and retracted from the water surface by the operator's manual work, there is a drawback that the workability of the fountain nozzle is extremely poor.

[0005]

The problem to be solved is that the work for projecting and retracting the fountain nozzle from the water surface is left to the manual work of the operator, so that the projecting and retracting workability of the fountain nozzle is extremely high. That's a bad point.

[0006]

According to the present invention, there is provided a fountain device comprising a water pipe having a fountain nozzle attached thereto, and a high-pressure water supply source for supplying high-pressure water to the water pipe. It is supported and this lifting means is connected to a lifting drive source via a power transmission system, and by automatically lifting the water pipe, the work for projecting and retracting the fountain nozzle from the water surface is easy. In addition, the purpose of improving the workability of the fountain nozzle is achieved.

[0007]

According to the present invention, when there is a request for the fountain nozzle to be projected and retracted from the water surface, the elevating drive source is activated, the driving force is transmitted to the elevating means by the power transmission system, and the elevating means is operated. The fountain nozzle attached to the water pipe and the water pipe can be automatically moved up and down.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 is an enlarged front view showing a part of a power transmission path. In these drawings, a fountain device 1 includes a water pipe 2 and A plurality of fountain nozzles 3, 3 ... And a high-pressure water supply source 4 are provided. The water pipe 1 has a relatively large radius of curvature and is formed in a circular ring shape. A plurality of fountain nozzles 3, 3, ... Are attached to the water pipe 1 via a valve 5 in an upward direction at equal intervals in the circumferential direction. High-pressure water is supplied to the water pipe 1 from a high-pressure water supply source 4 composed of a pump through a high-pressure water supply pipe 6, and the supplied high-pressure water is supplied to the fountain nozzles 3, 3, ...
It spouts from and performs a fountain. Further, the water pipe 2 is supported by a plurality of elevating means 7, 7 ... In such a manner that it can be raised and lowered in a horizontal state by a stroke amount from a lower limit position shown by a solid line in FIG. 2 to an upper limit position shown by a virtual line. .. Each of these elevating means 7, 7, ... Is a screw having a structure in which the vertical output shaft 7B is vertically moved by the forward and reverse rotations of the horizontal input shaft 7A.
It is composed of a jack. Each lifting means 7, 7 ...
Is a plurality of mounts 9, 9 installed at equal intervals in the circumferential direction on a circular ring-shaped locus projected on the bottom 8A of the fountain 8 with a radius of curvature equal to that of the water pipe 1.
And is connected to two lifting drive sources 11 and 11 via a power transmission system 10 so as to be simultaneously lifted and lowered.
That is, the power transmission system 10 includes a plurality of connecting shafts 10A and universal joints 10B, 10 attached to both ends of each connecting shaft 10A.
The vertical drive sources 11 and 11 are composed of a hydraulic drive motor 11A and a horizontal output shaft 11 that decelerates the rotational output of the hydraulic motor 11A at a predetermined ratio and outputs the output from both ends.
It is constituted by a speed reducer 11B provided with b, one universal joint 10B is connected to one end of a horizontal input shaft 7A of the elevating means 7, 7, and the other universal joint 10B is elevating means 7,
By connecting to the other end of the horizontal input shaft 7A of No. 7, the adjoining lifting means 7, 7 are connected to each other, the connecting shaft 10A and the universal joint 1
They are connected to each other by 0B and 10B. Further, one of the universal joints 10B is connected to one end of the horizontal input shaft 7A of the lifting means 7, 7, and the other of the universal joints 10B is connected to the speed reducer 1.
1B is connected to one end or the other end of the horizontal output shaft 11b, and the raising / lowering drive sources 11, 11 and the raising / lowering means 7 adjacent to both sides of these raising / lowering drive sources 11, 11 are connected to the connecting shaft 10A and freely. The joints 10B and 10B are connected to each other.

Next, the operation of the above configuration will be described. When the fountain device 1 performs the fountain, first, the hydraulic motors 11A of the elevation drive sources 11 and 11 are rotated in the forward direction, for example, and the forward rotation causes the horizontal output shaft 11b of the speed reducer 11B to move forward. Rotate in the direction. The forward rotation of the horizontal output shaft 11b is caused by the plurality of connecting shafts 10A,
Universal joints 10B, 1 attached to both ends of each connecting shaft 10A
At the same time, it is transmitted to the horizontal input shaft 7A of each of the elevating means 7, 7 ... through the power transmission system 10 constituted by 0B, and rotates it in the forward direction. By the normal rotation of the horizontal input shaft 7A, the vertical output shafts 7B of the lifting means 7, 7, ... Simultaneously rise at the same speed, and the upper limit of the water pipe 2 at the lower limit shown by the solid line in FIG. 2 is shown by the phantom line. It is pushed up to the position, and the upper end portions of the fountain nozzles 3, 3, ... Are projected above the water surface WL of the fountain basin 8. In this way, the state in which the water pipe 2 and the fountain nozzles 3, 3 ... Are pushed up to the upper limit position is detected by an upper limit position detecting means (not shown), and the hydraulic motor 11A is stopped based on the detection signal. It can be held by The high-pressure water supply source 4 is started at the time when the upper limit positions of the water passage 2 and the fountain nozzles 3, 3 ... Are completed, so that the high-pressure water supplied from the high-pressure water supply pipe 6 to the water passage 2 is supplied to a plurality of fountains. Water can be sprayed from the nozzles 3, 3 ...

On the other hand, when the fountain device 1 in which the high-pressure water supply source 4 is not used is not used, or when the stage is tentatively constructed in the fountain pond 8 to be used for attractions, etc.
When it is requested to submerge the fountain nozzles 3, 3, ... Under the water surface WL, the hydraulic motors 1 of the lifting drive sources 11, 11 are kept in a state where the operation of the high-pressure water supply source 4 is stopped.
Rotate 1A in the opposite direction. As a result, the power transmission system 1
0 and the respective elevating means 7, 7 ... Operate in the opposite direction to the above operation, and lowers the water pipe 2 at the upper limit position shown by the phantom line in FIG. 2 to the lower limit position shown by the solid line, and the respective fountain nozzles 3, 3 …
The upper end of the ... Is submerged below the water surface WL of the fountain basin 8. In this way, the state in which the water pipe 2 and the fountain nozzles 3, 3 ... Are lowered to the lower limit position is detected by the lower limit position detecting means (not shown), and the hydraulic motor 11A is stopped based on the detection signal. It can be retained. Therefore, compared with the conventional fountain device in which the fountain nozzle is projected and retracted from the water surface manually by the operator, the fountain nozzles 3, 3, ...
The work for projecting and retracting the water from the water surface WL becomes easy, and the workability of projecting and retracting the fountain nozzles 3, 3, ... Can be greatly improved.

In the above embodiment, the water pipe 1 having a circular ring shape is used for description, but a polygonal ring or straight water pipe 1 may be used. Further, the water pipe 1 may have a structure in which only one fountain nozzle 3 is attached. Further, the lifting drive sources 11, 11 are not limited to the combined structure of the hydraulic motor 11A and the speed reducer 11B described in the above embodiment, and a well-known drive structure can be appropriately selected and used.

[0012]

As described above, according to the present invention, when there is a request to cause the fountain nozzle to project and retract from the water surface, the lifting drive source is activated and the driving force is transmitted to the lifting means by the power transmission system. Since the water pipe and the fountain nozzle attached to the water pipe can be automatically moved up and down by the operation of the elevating means, the work to make the fountain nozzle project from the water surface is easier than the conventional fountain device. As a result, it is possible to greatly improve the workability of crushing and sinking.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a front view showing an enlarged part of a power transmission path.

[Explanation of symbols]

 1 Fountain Device 2 Water Pipe 3 Fountain Nozzle 4 High Pressure Water Supply Source 7 Elevating Means 10 Power Transmission System 11 Elevating Drive Source

Claims (1)

[Claims] 1. A fountain device comprising a water pipe having a fountain nozzle attached thereto and a high-pressure water supply source for supplying high-pressure water to the water pipe, wherein the water pipe is supported by an elevating means, and the elevating means is a power source. A fountain device characterized by being connected to a lifting drive source via a transmission system.