JPH0724802B2 - Bonding structure of liquid channel cylinders in a fountain - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention rotates each pipe-shaped body while ejecting a liquid such as water from the tips of a plurality of pipe-shaped bodies that are combined in appropriate shapes. Thus, the present invention relates to the joint structure of the liquid channel cylinder in the fountain device configured to form a peculiar liquid monument.

[Prior Art] At least one of the cylindrical bodies that have liquid flow paths along the axial direction inside and are arranged in mutually orthogonal postures, as in the case of joining a plurality of pipe-shaped bodies in the fountain device described above. When joining one tubular body so that the internal flow paths of the two tubular bodies communicate with each other in a rotatable state around the axis of the other tubular body, it has been generally manufactured separately from the tubular body. A dedicated rotary joint was used.

[Problems to be Solved by the Invention] However, in the conventional joint structure using the rotary joint, not only the joint portion including the rotary joint is easily enlarged, but also the cost of the fountain device itself is increased due to the use of the expensive rotary joint. Is easy to rise. Also, without using a drive source such as a motor, by driving and rotating each cylinder by utilizing the reaction force generated by ejecting liquid from the tip of a plurality of bent cylinders, a liquid monument is uniquely created. In the fountain device configured to be formed, the bent cylindrical shape itself is also an object to be observed, and the rotating portion including such a cylindrical body is large and heavy, and It is structurally unfavorable to use a considerably large and heavy rotary joint as a supporting structure for supporting. Also,
If the rotary joint is made to have enough strength to support a large and heavy rotating part, the rotary joint becomes larger and larger, and the appearance as a monument is deteriorated.

The present invention has been made in view of the above circumstances, and it is possible to form a liquid monument having excellent rotational movability and appearance without causing an increase in the size and weight of the joint portion, and further, it is durable. It is an object of the present invention to provide a joint structure of a liquid channel cylinder in a fountain device, which can improve the property.

[Means for Solving the Problems] In order to achieve the above-mentioned object, a joint structure of a liquid channel cylinder in a fountain device according to the first aspect of the invention has a liquid channel along an axial direction inside thereof. At the tip of the liquid supply source tube having
A plurality of first cylinders that have an internal flow path in a direction orthogonal to the internal flow path of the liquid supply source tube, are bent, and eject liquid from its tip end toward the outside in the axial direction of the cylinder. The body is joined so as to be rotatable around the axis of the liquid supply source tube and the internal flow paths communicate with each other. In the ejection device configured to drive and rotate the plurality of first cylinders around the axis of the liquid supply pipe by a reaction force caused by the ejection of the liquid toward the outside to form a liquid monument. In the joining structure of the liquid flow path tubular body, a tubular cover fitted concentrically outside the tip portion of the liquid supply source tube is fixed to the first tubular body side, and the tubular cover and the liquid supply are provided. Radial bearings, thrust bearings, and sealing materials are installed between the peripheral surfaces of the main pipe and the cylindrical portion that is continuous with the main pipe. In each case, the respective end liquid receiving ports of the internal flow passages of the plurality of first cylinders are directly or indirectly opened from the radial direction to communicate with the internal flow passages of the liquid supply source pipe. .

Further, in the joint structure of the liquid flow path cylinder in the fountain device according to the invention of claim 2, the liquid supply source is provided at the tip of the liquid supply source tube having a liquid flow path inside thereof in the axial direction. A plurality of first cylinders that are bent with an internal flow path in a direction orthogonal to the internal flow path of the pipe, and eject liquid from the tip end of the pipe toward the outside in the axial direction of the cylinder; The inner flow paths of the first cylinder are joined to each other so as to be rotatable about the axis of the liquid supply source tube and the inner flow paths are in communication with each other. A plurality of second cylinders that are bent with an internal flow path in a direction orthogonal to the direction and that eject liquid outward from the tip end thereof are provided around the axis of the first cylinder. The inner flow paths are rotatably joined to each other so that the internal flow paths communicate with each other, and the tip ends of the plurality of first cylinders and the tips of the plurality of second cylinders are connected. The first and second cylinders around the shaft center of the liquid supply pipe and the shaft center of the first cylinder by a reaction force caused by the ejection of the liquid from the respective parts toward the outside in the cylinder shaft direction. FIG. 3 is a joint structure of a liquid flow path tube body in a jetting device configured to drive and rotate each of them to form a liquid monument in a three-dimensional space, and concentrically covers the outside of the tip end portion of the first tube body. A tubular cover is fixedly provided on the side of the second tubular body, and in the tubular cover, a plurality of branch flow passage portions that are inclined with respect to the tubular axis and bend in a direction orthogonal to the tubular axis are provided. A branch flow path member having an outward linear flow path portion is arranged and fixed to the first tubular body, and the second flow path member is provided between the inner and outer facing peripheral surfaces of the branch flow path member and the tubular cover.
A radial bearing that rotatably supports the cylindrical body around the axis of the first cylindrical body and a sealing material that forms a liquid-tight annular flow path in which the branch flow path portion of the branch flow path member opens are provided. The respective end liquid receiving ports of the internal flow passages of the plurality of second cylinders are opened in the radial direction with respect to the liquid-tight annular flow passage, and the internal flow passages of the first cylinder are formed in the respective second cylinders. A nozzle portion is formed so as to communicate with the internal flow path of the body, and the tip portions of the plurality of first cylinders and second cylinders are formed respectively.

[Operation] According to the first aspect of the invention, the liquid is driven and rotated around the axis of the liquid supply source tube by the reaction force caused by the ejection of the liquid from the tip end portion toward the outside in the cylinder axis direction. A large and heavy rotating part including a plurality of first cylinders configured to form a monument is provided concentrically with a cylindrical cover fixed to the plurality of first cylinders and the cylindrical cover. By adopting a structure in which a radial bearing, a thrust bearing, and a sealing material, which are interposed between the facing surfaces of the liquid supply source pipe or the cylindrical portion connected to the liquid supply source pipe, are supported, the joint can be made smaller and lighter. The sealability between the first cylinder and the liquid supply source pipe is ensured, and along with this, the plurality of first cylinders themselves have a small diameter to improve the appearance of the entire monument. Provide the radial bearing and thrust bearing separately. Thus, it is possible to improve the durability of the entire fountain device by extending the life of the bearing while maintaining excellent rotary motion performance.

Further, according to the invention of claim 2, the reaction force associated with the ejection of the liquid from the tip portions of the plurality of first tubular bodies and the tip portions of the plurality of second tubular bodies toward the outside in the cylinder axis direction, respectively. In order to form a liquid monument in the three-dimensional space by driving and rotating the first and second cylinders around the axis of the liquid supply source tube and the axis of the first cylinder, respectively, It is of course possible to enhance the aesthetic appearance, and in the tubular cover fixedly provided on the side of the plurality of second cylinders, there are provided a plurality of bends in a direction inclined and orthogonal to the cylinder axis. By arranging the branch flow path member having the branch flow path part and the straight flow path part outward in the cylinder axis direction, it is possible to make the flow of the liquid smooth and well-balanced. At the same time, by forming the nozzle part at the tip of each cylinder, The trajectory of the liquid stream ejected from the tip of the tubular body it is possible to sharpen, it is possible to increase further the presentation effect of the liquid monuments.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are a front view and a plan view showing an embodiment of a fountain device to which a joining structure for a liquid channel cylinder according to the present invention is applied. In FIG. 1, 1 is a rectangular planar shape. It is fixedly installed on the concrete floor surface CFL via a plurality of anchor bolts 2. 3 is this base 1
It is a fixed cylinder that is fixed to the central part of the above and stands upright vertically, and a plurality of reinforcing ribs 4 are provided at its lower end in the circumferential direction.

Reference numeral 5 denotes a liquid supply source pipe, and this liquid supply source pipe 5 is concentrically inserted into the fixed cylinder 3 as shown in FIG.
A stepped shaft 6 is fitted and fixed to the lower end of the stepped shaft 6.
A roller bearing 7 as a radial bearing is interposed between the step portion and the inner peripheral surface of the fixed cylinder 3, and the step portion formed on the outer peripheral surface near the upper end of the roller bearing 7 faces the step portion. Between the inner peripheral surface of the fixed cylinder 3 and the roller bearing 8 as a radial bearing and the inclined roller bearing 9 as a thrust bearing, whereby the liquid source pipe 5 is provided around the vertical pipe axis. It is rotatably supported by the fixed barrel 3. A liquid supply pipe 10 has a liquid supply port 10a at its tip facing the annular space 11 formed between the fixed cylinder 3 and the liquid supply source pipe 5, and the liquid supply port 10a is opened. A plurality of liquid supply holes 5a are formed in the lower peripheral wall portion 5A of the opposed rotary liquid supply source pipe 5 at appropriate intervals in the vertical and circumferential directions.

Reference numeral 12 is a first cylindrical cover fitted concentrically to the upper end of the fixed cylinder 3 and the upper end of the liquid supply pipe 5 and fixed to the liquid supply pipe 5 via an annular member 13. And is configured to be rotatable integrally with the liquid supply source pipe 5, and an annular sealing material is provided between the opposing peripheral surfaces of the first cylindrical cover 12 and the fixed cylinder 3.
12A is installed. Reference numeral 14 denotes a bottomed cap fitted to the upper end of the liquid supply pipe 5.

Reference numerals 15 and 15 denote stainless steel pipes serving as first cylinders, and one ends of the internal flow passages 15A and 15A of the stainless steel pipes 15 and 15 are respectively provided at radially opposed portions near the upper end of the rotary liquid supply source pipe 5 to supply the liquid. The stainless pipes 15 and 15 are connected to the internal flow path 5B of the source pipe 5 and are formed in a V shape in a front view and in an S shape in a plan view. The outer surfaces of the outer pipes 16 and 16 made of mirror-finished stainless steel are concentrically fitted through the annular members 17 and 17 over the entire length thereof, and the base end portions of these outer pipes 16 and 16 are attached. The annular member 13
Also, the pipes 15, 16, 15 and 16 having the inner and outer heavy structures are configured to be rotatable around the vertical axis of the fixed cylinder 3 and the liquid supply pipe 5 by being fixed to the bottomed cap 14 by welding. There is.

As shown in FIG. 4, the inner flow path 15A of the stainless steel pipe 15 is provided at the tip of the pipes 15 and 16 having the above-mentioned inner and outer heavy structures.
An annular member 18 having a flow path 18A communicating with the outer pipe 16
The ring-shaped member 18
A branch flow path member 19 having a Y-shaped branch flow path portion 19A is fixedly connected via a screw. 21 is the annular member 18
And, via the roller bearing 22 on the outside of the branch flow path member 19,
A tubular body that is rotatably supported around the axes of the pipes 15 and 16 and serves as a second tubular cover. The inner circumferential surface of the rotary tubular body 21 and the outer circumferential surface of the branch flow path member 19 are In between, an annular flow path 23 is formed in which both discharge ports 19a, 19a of the Y-shaped branch flow path portion 19A are opened in a state of being partitioned by the annular seal materials 34, 34. The branch flow path member 19 is formed with a straight flow path part 19B communicating with the Y-shaped branch flow path part 19A and extending in the axial direction of the pipes 15 and 16. The above-mentioned straight flow path portion is provided in the lid body 24 that closes the end opening.
A nozzle hole (nozzle portion) 24A connected to 19B is formed. Therefore, a part of the liquid supplied into the branch flow channel member 19 from the internal flow channels 15A, 15A of the stainless pipes 15, 15 through the flow channel 18A is a linear flow channel portion 19B and the nozzle hole 24A.
After that, they are ejected in the directions of arrows P1 and P1 in FIG.
Due to the reaction force caused by the jet of liquid, the pipes 15 and 16 having the above-mentioned inner and outer heavy structures are automatically rotated around the vertical axis of the fixed cylinder 3 and the liquid supply source pipe 5 in the arrow R1 direction of FIG. It is configured to let.

Reference numerals 25 and 25 are stainless pipes that are second cylinders arranged at the ends of the pipes 15 and 16 having the above-mentioned inner and outer heavy structures, and these stainless pipes 25 and 25 have one end as shown in FIG. Is a Y-shaped branch flow passage portion via the annular flow passage 23 at a radially opposite portion of the intermediate portion of the rotary cylinder 21.
While being connected to both discharge ports 19a, 19a of 19A,
These stainless steel pipes 25, 25 are S-shaped in a front view and V-shaped in a plan view. Further, the stainless pipes 25, 25 are made of a mirror-finished stainless steel outside the stainless pipes 25, 25 over their entire lengths. Outer pipe 2
6, 26 are fitted concentrically through the annular members 27, 27, and the base end portions of these outer pipes 26, 26 are fixed to the rotary cylinder 21 by welding, whereby two sets of inner and outer weights are attached. Structure pipe 25,2
6, 25 and 26 are configured to be rotatable around the axis of the stainless pipe 15. The lids 28, 28 for closing the tip openings of the outer pipes 26, 26 have internal passages of the stainless pipes 25, 25.
Nozzle holes (nozzle portions) 28A, 28A communicating with 25A, 25A are formed. Therefore, the stainless pipe 25, through the annular flow path 23 from both discharge ports 19a, 19a of the branch flow path portion 19A,
The liquid supplied into the 25 internal channels 25A, 25A is
It is ejected in the directions of arrows P2 and P2 in Fig. 1 through A and 28A, respectively, and the reaction force associated with such ejection of liquid causes the pipes 25, 26, 25 and 26 of the inner and outer heavy structures of each set to rotate as described above. It is configured so that it is automatically driven and rotated in the directions of arrows R2 and R2 in FIG.

In the joint shown in FIG. 4, the stainless pipe 15 serves as the first tubular body, and the stainless pipes 25, 25 serve as the second pipe.
It becomes a cylinder.

In the fountain device configured as described above, the tip end liquid supply port of the liquid supply pipe 10
The liquid supplied from 10a into the annular space 11 is a liquid supply hole 5a,
Internal passages 15A, 15 of the liquid supply source pipe 5 and the stainless pipes 15,15
After passing through A, the flow path 18A, the Y-shaped branch flow path portion 19A and the straight flow path portion 19B of the branch flow path member 19, and the nozzle hole 24A, the second
Arrows P1 and P1 in the figure are respectively jetted, and the jet reaction force causes the pipes 15, 16, 15 and 16 of the inner and outer heavy structures to be driven to rotate in the arrow R1 direction, and at the same time, the branch flow of the branch flow path member 19 The liquid is supplied to the internal flow paths 25A, 25A of the two sets of stainless pipes 25, 25 from the both discharge ports 19a, 19a of the path section 19A through the annular flow path 23, respectively. Nozzle hole 28
A and 28A, respectively, are jetted out in the directions of arrows P2 and P2 in Fig. 1, respectively, and due to the jetting reaction force, each set of pipes of internal and external heavy structure
25, 26, 25, 26 are driven and rotated in the directions of arrows R2, R2, respectively. In this way, due to the reaction force associated with the jet of liquid, a plurality of sets of pipes 15, 16, 25, 26, 25, 26 of internal and external heavy structure are driven and rotated to form a peculiar liquid monument in the three-dimensional space. Become.

In the above embodiment, the joining structure shown in FIG. 3 corresponds to the embodiment of the invention of claim 1, and the joining structure shown in FIG. 4 corresponds to the embodiment of the invention of claim 2.

Further, in the above-described embodiment, the lid 24 having the nozzle hole (nozzle portion) 24A and the lid body 28 having the nozzle hole (nozzle portion) 28A fixed thereto have been described. The lids 24 and 28 so that the screw parts 24a and 28a
And set bolts 24b and 28b can be replaced to replace the nozzle holes (nozzle parts) 24A and 28A with different diameters or different ejection shapes. It can be used extensively.

Further, in the above-mentioned embodiment, the fountain device composed of the combination of the stainless pipe 15 rotating about the vertical axis and the stainless pipe 25 rotating about the horizontal axis at the tip of the stainless pipe 15 was explained. It is also possible to attach another cylindrical body that rotates by the reaction force associated with the liquid ejection to each tip to form a fountain device that forms a more complex monument.

The shapes of the stainless steel pipes 15 and 25 are not limited to the V-shape and the S-shape, and may be any shape.

[Effects of the Invention] As described above, according to the invention of claim 1, the reaction force associated with the ejection of the liquid from the tip end portion toward the outside in the axial direction of the cylinder causes the reaction fluid to rotate around the axial center of the liquid supply pipe. A large and heavy rotating part including a plurality of first cylinders configured to be driven and rotated to form a liquid monument, a cylindrical cover fixed to the plurality of first cylinders, and a cylindrical cover. By using a structure in which it is supported via radial bearings, thrust bearings, and sealing materials that are interposed between the opposing surfaces of the liquid supply source tube that is concentrically located in the cover or the cylindrical portion that is continuous with it, a dedicated rotary Compared with the case where a joint is used, the joint is made smaller and lighter, and the sealing property between the first cylinder and the liquid supply source pipe is ensured.
The cylindrical body itself has a small diameter to improve the appearance of the liquid monument forming jetting device as a whole, and by providing a radial bearing and a thrust bearing separately, excellent rotational movement performance is maintained while bearing life is improved. Due to the extension, the durability of the entire fountain device can be improved.

Further, according to the invention of claim 2, the reaction force associated with the ejection of the liquid from the tip portions of the plurality of first tubular bodies and the tip portions of the plurality of second tubular bodies toward the outside in the cylinder axis direction, respectively. In order to form a liquid monument in the three-dimensional space by driving and rotating the first and second cylinders around the axis of the liquid supply source tube and the axis of the first cylinder, respectively, Not only can the aesthetic quality be improved, but a plurality of branch flows that are inclined to the cylinder axis and bent in a direction orthogonal to each other in the cylindrical cover that is fixedly provided on the second cylinder side. By arranging the branch flow passage member having the passage portion and the straight flow passage portion outward in the axial direction of the cylinder, the liquid flow can be made smooth and well-balanced, and each cylinder By forming the nozzle part at the tip of the body, The trajectory of the liquid stream ejected from the tip and sharp can also smooth the trajectory of the connection of the cylindrical body and the liquid, therefore, it is possible to increase further the presentation effect of the liquid monuments.

[Brief description of drawings]

1 and 2 are a front view and a plan view showing an embodiment of a joint structure of a liquid channel cylinder in a fountain device according to the present invention, and FIGS. 3 and 4 are enlarged longitudinal cross-sections of essential parts, respectively. FIG. 5 is an enlarged vertical sectional view of a main part showing another embodiment of the present invention. 5 ... Liquid supply pipe, 5B ... Internal flow path, 7,8,22 ... Cologal bearing (radial bearing), 12,21 ... Cylindrical cover, 12A, 34
...... Annular sealing material, 15 ...... Stainless steel pipe (first cylinder), 15A ...... Internal flow path, 19 ...... Branch flow path member, 19A ......
Branch channel, 19B: Straight channel, 25: Stainless steel pipe (second cylinder).

Front page continuation (72) Shiro Fukuda, Inventor Shiro Fukuda, No. 4-1-1-19, Nijo, Nishikansai, Toyohira-ku, Sapporo, Hokkaido (56) References JP-A-60-853 (JP, A) JP-A-SHO 53-34398 (JP, A) Actual opening Sho 53-21483 (JP, U) Actual opening Sho 53-158454 (JP, U)

Claims (2)

[Claims] Claim: What is claimed is: 1. A tip of a liquid supply source pipe having a liquid flow passage in the axial direction inside thereof, has an internal flow passage in a direction orthogonal to the internal flow passage of the liquid supply source pipe. A plurality of first cylinders that are bent around, and eject liquid from the tip end thereof toward the outside in the cylinder axis direction, are rotatable around the axis of the liquid supply pipe,
In addition, the internal flow passages are connected to each other in a state of communicating with each other, and the reaction force associated with the ejection of the liquid from the tip ends of the plurality of first cylinders toward the outside in the cylinder axis direction causes A joint structure of a liquid flow tube cylinder in a jetting device configured to drive and rotate a first cylinder around an axis of the liquid supply tube to form a liquid monument. A cylindrical cover that is fitted concentrically outside the tip end portion of is fixed to the first cylindrical body side, and a radial bearing is provided between the cylindrical cover and the opposing peripheral surface of the liquid supply pipe or the cylindrical portion connected to the liquid supply pipe, With thrust bearings and seals,
The end liquid receiving ports of the internal flow paths of the plurality of first cylinders are directly or indirectly opened from the radial direction to communicate with the internal flow paths of the liquid supply source pipe, respectively. The joining structure of the cylinder for liquid flow paths in the ejection device. 2. A liquid supply source tube having a liquid flow path in the axial direction inside thereof has an internal flow path in a direction orthogonal to the internal flow path of the liquid supply source tube. A plurality of first cylinders that are bent around, and eject liquid from the tip end thereof toward the outside in the cylinder axis direction, are rotatable around the axis of the liquid supply pipe,
In addition, the inner flow paths are joined in a state of communicating with each other, and the inner flow paths in the direction orthogonal to the inner flow paths of the first cylinders are provided at the tip ends of the plurality of first cylinders. A state in which a plurality of second cylinders that bend and eject liquid from the tip end portion thereof are rotatable around the axis of the first cylinder and the internal flow paths communicate with each other. And a plurality of second end portions of the first cylinders and a plurality of second cylinders.
These first and second cylinders are moved to the shaft center of the liquid supply source tube and the first cylinder by the reaction force caused by the ejection of the liquid from the tip of the cylinder toward the outside in the cylinder axis direction. A joint structure of a liquid flow path tube body in a jetting device configured to drive and rotate around an axis to form a liquid monument in a three-dimensional space, wherein an outer side of a tip end portion of the first tube body is provided. A tubular cover that is concentrically covered is fixedly provided on the second tubular body side, and in this tubular cover, a plurality of branch flow passage portions that are inclined with respect to the axial center of the tubular body and that are bent in a direction orthogonal to each other are provided. A branch flow path member having a straight flow path portion outward in the axial direction is arranged and fixed to the first tubular body, and between the inner and outer facing peripheral surfaces of the branch flow path member and the tubular cover. And a radial bearing for rotatably supporting the second cylinder around the axis of the first cylinder and the branch flow. A sealing material that forms a liquid-tight annular flow path having an opening of a branch flow path portion of the member is interposed, and each end liquid receiving port of the internal flow paths of the plurality of second cylindrical bodies is connected to the liquid-tight annular flow The inner flow passages of the first cylinder are communicated with the inner flow passages of the respective second cylinders by making openings in the radial direction with respect to the passages, and the tips of the plurality of first cylinders and second cylinders are also provided. A joint structure for a liquid channel cylinder in a jetting device, characterized in that a nozzle part is formed in each part.