JP2005329542A - Artificial fountain equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide artificial fountain equipment which can represent a visual scene of a natural fountain. <P>SOLUTION: This artificial fountain equipment is equipped with a spring pond (12), the approximate lower half of which is filled with gravel and the upper half of which is filled with water, and at least one spring port unit (14) which is arranged in the spring pond. The spring port unit comprises: a main body (16) to which water is supplied from a water supply pipe; a nozzle (18) which is arranged in the upper part of the main body; and an inverted truncated cone-shaped or inverted n-angular pyramid-shaped (n≥6) spring cone (20) provided in the place, wherein the nozzle is arranged, of the main body in such a manner as to surround the nozzle. An upper end of the spring cone is positioned slightly below a top surface of a gravel layer; a jet of water is emitted upward from the nozzle; the gravel, which is accumulated in the spring cone, is blown up with the water; and most of the blown-up gravel falls so as to be re-stored in the spring cone. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention generally relates to artificial fountain devices. More specifically, the present invention relates to an artificial fountain device capable of producing a natural fountain scene.

  Artificial fountain devices that make artificial facilities imitating natural springs and are used for people's appreciation are known. As a conventional artificial spring device, there is known a facility for artificially reproducing springs and springs by scattering beads instead of splashing water. In addition, an artificial wetland has been proposed that includes a water-impervious layer, a water-permeable layer having a spring member, a protective layer covering the water-permeable layer, and a discharge port (see Patent Document 1).

Japanese Patent Laid-Open No. 2003-23884

  However, an apparatus that reproduces an artificial spring by splashing beads is far from producing a natural spring scene. Moreover, the proposal regarding the above-mentioned artificial wetland is only for forming a wetland close to nature, and is not directly related to the artificial spring.

  Therefore, an object of the present invention is to provide an artificial fountain device capable of producing a natural fountain scene.

  The artificial spring device according to claim 1 of the present invention includes a spring pond in which gravel is almost filled in the lower half and water is filled in the upper half, and one or a plurality of spring unit arranged in the spring pond. The main body unit to which water is supplied from a water supply pipe, a nozzle disposed at an upper part of the main body, and a portion where the nozzle of the main body is disposed so as to surround the nozzle. An inverted frustoconical shape or an inverted n truncated pyramid shaped (n ≧ 6) spring cone, and the upper end of the spring cone is positioned slightly below the top surface of the gravel layer; Water is spouted upward from the nozzle, and the gravel accumulated in the spring cone is blown up together with the water, so that most of the blown up gravel falls and is accommodated in the spring cone again. It is characterized by being composed

  The artificial fountain device according to claim 2 of the present application is characterized in that, in the device of claim 1, the gravel has a particle size of 5 mm to 7.

  The artificial fountain device according to claim 3 of the present application is characterized in that, in the device of claim 1 or 2, the water ejection speed from the nozzle is 1.5 m / sec or more.

  The artificial fountain device of the present invention is configured such that the gravel deposited in the spring cone 20 is blown up together with water, and most of the gravel blown is dropped and accommodated in the spring cone 20 again. It was possible to produce a natural fountain scene effectively.

  Next, an artificial fountain device according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall view schematically showing an artificial fountain device according to a preferred embodiment of the present invention. An artificial fountain device according to a preferred embodiment of the present invention, generally indicated by reference numeral 10 in FIG. The lower half of the spring pond 12 is filled with gravel (preferably having a particle size of about 5 mm to about 7 mm), and the spring pond 12 is filled with water.

  The artificial spring device 10 is also provided with one or a plurality of spring unit 14 arranged in the spring pond 12. The spring unit 14 includes a main body 16 to which water is supplied from a water supply pipe, and a nozzle 18 that is disposed on the upper portion of the main body 16 and ejects water from the main body.

  A spring cone 20 is provided at a location where the nozzle 18 of the main body 16 of the spring unit 14 is disposed so as to surround the nozzle 18. The spring cone 20 has an inverted truncated cone shape in which the truncated cone is turned upside down.

  The spring unit 14 is arranged so that the upper end of the spring cone 20 is located slightly below the upper surface of the gravel layer, for example, as shown in FIG. Preferably, a mesh 22 is attached to the tip of the nozzle 18 so that gravel does not enter the nozzle 18.

  A container 24 for temporarily receiving water overflowing from the spring pond 12 is disposed adjacent to the spring pond 12. The container 24 communicates with an overflow tank for storing overflow water via a conduit, and a water supply pipe extending from the overflow tank communicates with each spring unit 14. Note that a pump for circulating water and a filtration tank for removing fine sand mixed in the water are interposed in the water supply pipe. The water supply pipe is provided with a total water amount adjustment valve 26 for adjusting the total amount of circulating water, and is supplied to each spring port unit 14 between the valve 26 and each spring port unit 14. Individual water amount adjustment valves 28 for adjusting the amount of water are provided.

  The operation of the artificial fountain device 10 configured as described above will be described. When water is supplied to the main body 16 of the spring outlet unit 14 through the water supply pipe, the water is ejected upward from the nozzle 18. At that time, the entire water amount adjusting valve 26 is adjusted in a state where the individual water amount adjusting valve 28 is fully opened so that the water amount becomes larger than the assumed water amount, and then the individual water amount adjusting valve 28 is adjusted, The discharge amount of the nozzle 18 is approximately averaged. The ejection speed from the nozzle 18 is preferably about 1.5 m / sec or more. Then, the gravel accumulated in the spring cone 20 is blown up together with the water as shown in FIG. 4, but most of the blown up gravel falls and is accommodated in the spring cone 20 again. . More detailed description will be given with reference to FIG. 5 (a) schematically showing the movement of gravel (in FIG. 5 (a), solid arrows indicate streamlines, white circles indicate gravel movement state). Gravel blown at an ejection speed of 1.5 m / sec or more is attracted into the spring cone 20 due to a pressure difference in the water, and the spring cone 20 itself is moved upward so that the falling gravel can be easily captured. 5 (b) showing a state in which water supply is stopped, most of the gravel is accommodated in the spring cone 20. .

  In addition, according to the experiment conducted by the present inventor, it was found that if the water ejection speed from the nozzle 18 is too slow, gravel is scattered and it is difficult to return to the spring cone 20 (FIG. 6A and FIG. 6). See Fig. 6 (b) Fig. 6 (a) is a diagram schematically showing the movement of gravel when the ejection speed is low, and Fig. 6 (b) is a diagram showing a state where water supply is stopped. ). Therefore, it is preferable that the water ejection speed be a predetermined speed (preferably about 1.5 m / sec) or more.

  The present invention is not limited to the embodiments of the invention described above, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.

  For example, although the spring cone 20 has an inverted truncated cone shape in the above embodiment, an inverted n truncated pyramid shaped spring cone 20 in which an n truncated pyramid (n ≧ 6) is turned upside down is used. Also good.

1 is an overall view schematically showing an artificial fountain device according to a preferred embodiment of the present invention. It is an enlarged view of the part 2 of FIG. 3A is a cross-sectional view of the spring unit of the artificial fountain device of FIG. 1, and FIG. 3B is a view taken along line 3b-3b of FIG. 3A. It is the figure which showed typically the state which supplied water to the spring inlet unit. FIG. 5A is a diagram schematically showing gravel movement when the ejection speed is high, and FIG. 5B is a diagram showing a state where water supply is stopped. FIG. 6A is a diagram schematically illustrating the movement of gravel when the ejection speed is low, and FIG. 6B is a diagram illustrating a state where water supply is stopped.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Artificial spring apparatus 12 Spring pond 14 Spring inlet unit 16 Main body 18 Nozzle 20 Spring cone 22 Mesh 24 Container for receiving overflow water

Claims (3)

An artificial spring device,
A spring pond filled with gravel in the lower half and water in the upper half,
One or more spring outlet units arranged in the spring pond,
The spring unit is provided at a place where the nozzle of the main body is disposed so as to surround the nozzle, a main body to which water is supplied from a water supply pipe, a nozzle disposed at an upper portion of the main body, and the nozzle. An inverted frustoconical shape or an inverted n truncated pyramid shape (n ≧ 6) spring cone, and the upper end of the spring cone is positioned slightly below the upper surface of the gravel layer,
Water is spouted upward from the nozzle, and the gravel accumulated in the spring cone is blown up together with the water, so that most of the blown up gravel falls and is accommodated in the spring cone again. A device characterized in that it is configured. The apparatus according to claim 1, wherein a particle diameter of the gravel is 5 mm to 7 mm. The apparatus according to claim 1 or 2, wherein a jet speed of water from the nozzle is 1.5 m / sec or more.

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