JPH07232115A - Fountain system - Google Patents

Abstract

PURPOSE:To provide a fountain system to be executed in order to add additional three-dimensional effects to a design effect in parks or squares of public facilities, atrium of department stores, etc. CONSTITUTION:Plural submersible pumps 2, 2' of small sizes and small capacities having perpendicular upward facing nozzles 1, 1' are fixed in arrangement of prescribed fountain arrays in a water tank 7. The start, stop and output changes of the individual submersible pumps 2, 2' are discretely controlled by inverter, etc. A mount plate 4 is supported by a cylinder 5 for lifting erected on a water bottom and is vertically moved by driving of the cylinder 5 for lifting at a stroke of the size at which at least the front ends of the nozzles 1 project from under the water surface to above the water surface. As a result, the individual submersible pumps are controlled by the controller and, therefore, the discrete control of the pumps is made possible and the height of one piece each of jets is made freely controllable. Then, diversified fountain forms or dynamic changes of the fountain forms are created.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fountain system implemented to three-dimensionally enhance a design effect of a large space (atrium) such as a park, a public facility plaza, or a department store.

[0002]

2. Description of the Related Art A fountain system conventionally implemented in a large space (atrium) of a park, public facility, department store, etc. has four nozzle pipes a as shown in FIG.
Is a series of circular arrangements, and submersible pumps b are connected to one nozzle pipe a at a rate of one by one via adjustment valves c. The submersible pump b has a diameter of 15c.
m-20 cm, length about 30 cm, capacity 1.5 kw-3.
A relatively large one of about 7 kW is used. Even if the nozzle pipe a is short, it has a length of about 2 m, and a plurality of nozzles d having a diameter of a little less than 10 mm and a length of about 10 cm are attached vertically upward at a pitch of about 10 cm to 30 cm.

The diameter and the length of the nozzle d may be the same in some cases, but may differ slightly depending on the height of the jet flow and the appearance of the fountain.

[0004]

When a plurality of nozzles d are attached to one nozzle pipe a and a jet flow is formed in each nozzle as in the prior art, the height of the jet flow ejected from each nozzle d is controlled. Even if trying to adjust, it is extremely difficult to individually control and adjust the height of the jet flow ejected from the nozzle d of the common nozzle pipe a.

The fact that a plurality of nozzles d are attached to one common nozzle pipe a means that the arrangement shape of the nozzles d (arrangement of fountain rows) is restricted according to the form of the nozzle pipe a. Along with this, variations in fountain form are also restricted. Furthermore, 1.5kw-3.7kw
Since the submersible pump b having a relatively large capacity is powerful, it sometimes sucks even the dust accumulated on the bottom of the water, which causes a trouble of clogging the dust.

Therefore, an object of the present invention is to create a variety of fountain form variations by integrating a submersible pump and a nozzle, eliminating any piping, and individually controlling the jets ejected from the nozzles of the individual pumps. And to provide a fountain system that uses a small submersible pump to minimize clogging with debris.

[0007]

As a means for solving the above-mentioned problems of the prior art, a fountain system according to the present invention comprises a plurality of small-sized and small-capacity submersible pumps having vertically upward nozzles 1, 1 '. 2, 2 ′ are fixed in the water tank 7 in a predetermined arrangement of fountain rows, and the start or stop of each submersible pump 2, 2 ′ and the change in output are individually controlled by the control device 3 such as an inverter. Is characterized by.

A plurality of small-sized and small-capacity submersible pumps 2 and 2'having the vertically upward nozzles 1 and 1'are fixed on a common mount plate 4 in a water tank 7 in a predetermined arrangement of fountain rows. The starting or stopping of the individual submersible pumps 2, 2'and the change in output are individually controlled by the control device 3 such as an inverter. Further, the mount plate 4 is supported by a vertically elevating cylinder 5, and when the elevating cylinder 5 is driven, at least the tip of the nozzle 1 moves up and down with a stroke such that the tip of the nozzle 1 projects from below the water surface to above the water surface. To be done.

Further, a blind plate 6 having a hole through which the vertically upward nozzle 1 of the submersible pump 2 passes and covering the submersible pumps 2, 2'may be installed at a position higher than the submersible pumps 2, 2 '. Characterize.

[0010]

Since the submersible pumps 2 and 2'include the nozzles 1 and 1 ', no piping is required. By fixing the required number of submersible pumps 2, 2'to the tank as a circular or other desired arrangement of fountain rows and controlling each submersible pump 2, 2 ', the jet generation and height can be controlled one by one. It can be controlled freely according to the progress, and thus various fountain forms or dynamic changes of fountain forms can be created.

By driving the lifting cylinder 5, all nozzles 1 can be hidden under the surface of the water, especially under the blind plate 6, when the jet flow is stopped, and the blind plate 6 is used as the submersible pump 2, 2 '. The submersible pumps 2 and 2'cannot be seen from the surface of the water because they are installed above. Since the submersible pumps 2 and 2'are small in size and small in capacity, there is no risk of sucking dust accumulated on the bottom of the water.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention shown in the drawings will be described below. 1 is a plan view of the fountain system of the present invention, and FIG.
FIG. 3 is an elevational view showing a part of the fountain system in a simplified manner. In FIG. 1, a plurality of horizontal submersible pumps 2 each having a vertically upward nozzle 1 are fixed together with a vertical submersible pump 2 ′ on a common mount plate 4 in a triple circle arrangement, and placed in a water tank 7. It is sunk together with the mount plate 4. As the horizontal submersible pump 2 and the vertical submersible pump 2 ', small and small-capacity pumps having a diameter of about 15 cm, a length of about 20 cm and a capacity of about 0.1 kw are used. The nozzle 1 of the horizontal submersible pump 2 has a diameter of 10 m.
It is said to be a little less than m and about 10 cm in length. On the other hand, the nozzle 1'of the vertical submersible pump 2'has a diameter of 10 mm.
As shown in FIG. 2, the weakness and the length are provided on the upper end surface of the submersible pump 2'as short as about 2 cm. Further, the two types of submersible pumps 2 and 2 ′ are individually controlled by the control device 3 such as a common or separate inverter or the like to start or stop and change the output. Therefore, the jet flow ejected from the nozzles 1, 1'is individually controlled for each pump, and as a result, various variations of fountain forms can be created depending on the control content.

Next, as shown in FIG. 2, the mount plate 4 is horizontally supported by an elevating cylinder 5 which stands vertically on the bottom 7a of the water tank 7. While the lifting cylinder 5 has a constant water level in the water tank 7, the mount plate 4 as a whole, and by extension, the submersible pump 2, which is a constituent element of the fountain system installed on the plate.
Drive 2'up and down. Before the fountain is started, the lifting cylinder 5 is driven to move upward with a stroke of a size such that at least the tip of the nozzle 1 of the horizontal submersible pump 2 projects from below the water surface to above the water surface. Therefore, a jet stream such as a thin thread can be jetted up high from the nozzle 1 that has emerged above the water surface. On the other hand, the nozzle 1'of the vertical submersible pump 2'is still in a state of being submerged in water even if the nozzle 1 projects above the water surface, and as a result of the jet stream spouting underwater winding up the surrounding water, a thick and short columnar shape. Forming a jet stream of gurgling noise. When stopping the fountain, the elevating cylinder 5 is driven downward, so that the entire fountain system is submerged together with the mount plate 4, and the water tank 7 from the surroundings.
It is used to improve the appearance by eliminating the presence of foreign matter in the appearance.

Still, since the submersible pumps 2, 2'are installed and visually recognized in clear water, the use of the blind plate 6 is proposed as a means for more positively securing the good appearance of the water tank 7 when the fountain is stopped. (See FIG. 2). The blind plate 6 is fixed to a fixed level on a support system different from that of the mount plate 4, and therefore is not influenced by the vertical drive of the lifting cylinder. Since the blindfold plate 6 is installed at a position under water above the submersible pumps 2 and 2'and has a minimum necessary hole through which the vertically upward nozzle 1 or the like passes, the cylinder 5 for raising and lowering is stopped when the fountain is stopped. When driving down,
All the submersible pumps 2, 2'and other offal are sunk under the blind plate 6 and covered. Further, in consideration of the appearance of the fountain form, it is preferable to use an opaque plastic plate for the blindfold plate 6, which is an opaque plastic plate having a color similar to the color of water and the color of the water tank.

[0015]

[Effects of the Present Invention] The present invention has the following effects. No piping is required as each submersible pump is equipped with a nozzle. Therefore, the work of disposing and attaching is not necessary, and the work of attaching the nozzle to the pipe is not necessary. Further, since there is no restriction on the piping path, the arrangement pattern of the nozzles can be freely set. Therefore, it is possible to create various fountain forms not only in a water tank but also in a groove through which water flows. Since each submersible pump is controlled by the control device, it can be controlled individually and the height of each jet can be freely controlled. Therefore, various fountain forms or dynamic changes of fountain forms can be created. The submersible pump only needs to jet one nozzle each. Therefore, since the capacity of each submersible pump is small, there is no possibility of sucking the dust accumulated on the bottom of the water, and the trouble of the dust clogging is eliminated. By driving the lifting cylinder, all individual nozzles can be hidden under the water surface when the jet flow is stopped, etc., which is excellent in appearance. Since the submersible pump and the lifting cylinder are unitized on a common mount plate, it is possible to install and use the unit that has been set in the factory beforehand as it is in the water tank or groove. Therefore, no assembly work is required in the water tank or the groove.

[Brief description of drawings]

FIG. 1 is a plan view of a fountain system.

FIG. 2 is a simplified elevational view showing a part of a fountain system.

FIG. 3 is a plan view showing a conventional example.

[Explanation of symbols]

 1,1 'Nozzle 2,2' Submersible pump 7 Water tank 3 Controller 4 Mount plate 5 Lifting cylinder 6 Blind plate

Claims (4)

[Claims] 1. A plurality of small-sized, small-capacity submersible pumps having vertically upward nozzles are fixed in a water tank in a predetermined fountain row arrangement, and the start or stop of each submersible pump and the change in output are inverters. A fountain system characterized by being individually controlled by a control device such as. 2. A plurality of small-sized and small-capacity submersible pumps having vertically upward nozzles are fixed on a common mount plate in a predetermined fountain row arrangement, and start / stop and output of each submersible pump. The fountain system according to claim 1, wherein the change is individually controlled by a control device such as an inverter. 3. The mount plate according to claim 2,
The vertical supporter is supported by a vertically rising / lowering cylinder, and by driving the vertically moving cylinder, at least the tip of the nozzle is vertically moved with a stroke of a size projecting from below the water surface to above the water surface. Fountain system described. 4. A submerged pump having a hole through which a vertically upward nozzle passes, and a blind plate for covering the submersible pump is installed above the submersible pump. Fountain system described in.