JP2504904Y2 - Fountain starter - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fountain starting / stopping device for stopping a jet flow of jetting water or for re-starting the stopped jet water.

[0002]

2. Description of the Related Art Conventional fountains have been produced by continuously ejecting water from a fountain nozzle. However, in recent years, each fountain nozzle is provided with a fluid control device, for example, an electromagnetic opening / closing valve, an air actuated valve, an electric valve, etc., and a fountain is generated by controlling the fluid control device ON-OFF using a computer. It came to stop and direct. In addition, the fountain flow from the fountain nozzle is blocked by a shutter and a drainboard.
Starting and stopping fountains is also practiced.

[0003]

When a fluid control device is attached to the fountain nozzle, the flow rate and water pressure in the pipe fluctuate depending on the start and stop, so that the water flow of other fountain nozzles changes, causing a problem in performance. At the same time, it takes a long time to operate the valve, and the valve is clogged with dust, which makes it impossible to control the start and stop. Also, when the fountain flow from the fountain nozzle is blocked by a shutter or a draining plate, the shutter or draining plate is driven by a motor, or the spring or electromagnet operates to enlarge the fountain nozzle itself. There are performance problems such as it is difficult to turn the fountain on and off in a short time inside and outside. Furthermore, there is a device that diverts the water flow with a water spray device, but the spray nozzle operation is turned on and off.
If the spray water flow pressure fluctuates at this time, the main water to be blocked cannot be sufficiently diverted, and broken pieces of water may scatter and become unattractive.

[0004]

The present invention was developed in order to obtain a fountain starting and stopping device without the above problems.
The fountain nozzle is housed in a cylindrical case having an upper wall, and the upper wall of the cylindrical case is provided with an opening for ejecting a fountain flow ejected from a nozzle hole of the fountain nozzle to the outside of the cylindrical case. A start / stop piece that is operated by air pressure is provided at a contact position above the injection hole that comes into contact with the jet flow and at a retracted position that deviates from the jet flow.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, reference numeral 1 is a cylindrical case having an upper wall in which a fountain nozzle 2 standing upright or inclined with a nozzle hole 3 facing upward is housed. On the upper wall 4 of the shaped case, an opening 5 is provided at a position facing the injection hole so that the fountain flow ejected from the injection hole is discharged to the outside. 6 is a stay for supporting the fountain nozzle 2 in the tubular case 1, 7 is a drainage slit provided on the circumferential side of the lower end of the tubular case, 8
Is a manual flow rate adjusting valve provided in the middle of a water pipe 9 for supplying water pressurized by a pump to the fountain nozzle 2.

In the cylindrical case 1, the injection hole 3 of the fountain nozzle is provided.
A start / stop piece 10 that is operated by air pressure is provided at a contact position that is in contact with the jet flow W immediately above and a retracted position that deviates from the jet flow W. It is preferable that the thickness of the start / stop piece 10 is smaller than the diameter of the fountain flow ejected from the injection hole 3. As a result, the starter / stop piece can be smoothly moved and brought into contact with each other without being influenced by the pressure of the fountain flow. Further, the cross-sectional shape of the start / stop piece 10 is preferably circular or triangular with the apex facing downward.

In the embodiment shown in FIG. 1, a pneumatically actuated air cylinder 11 is mounted above the inside of the cylindrical case 1 at a right angle to the fountain flow, and its piston is used as a start / stop piece 10. When it extends out from the cylinder 11, it comes to a contact position where it crosses directly above the injection hole 3 and comes into contact with the jet W, and when it retracts it comes to a retracted position. Therefore, when the starting / stopping piece 10 is in the retracted position (FIG. 1B), the fountain flow W ejected from the ejection holes 3 of the fountain nozzle directly exits from the opening 5 in the upper wall of the cylindrical case. Further, when the signal from the microcomputer 12 is transmitted to the solenoid valve 15 in the middle of the air pipe 14 to the air cylinder 11 via the relay board 13 to open the valve, compressed air from the air compressor 16 is supplied to the air cylinder 11. The starting and stopping piece 10, which is the piston, extends out of the cylinder 11 and crosses the injection hole directly above the injection hole 3. As a result, the fountain flow W from the injection hole hits the start / stop piece 10 and is divided as shown in FIG. 1C, and is deflected from the discharge direction. As a result, the fountain flow W does not come out from the opening 5 in the upper wall of the cylindrical case, and the water is drained from the inside of the cylindrical case to the outside through the slit 7. Then, the electromagnetic valve 15 is closed by the next electric signal from the microcomputer, and the spring (not shown) built in the cylinder 11 pushes the starter / stop piece back to the retracted position, so that the fountain flow W is opened again in the cylindrical case. 5
Get out of the When the distance from the installation location of the solenoid valve 15 to the fountain nozzle 2 is long, the cylinder 11 is provided with a normally-closed rapid exhaust valve 17 for rapidly exhausting the internal air so that the start / stop piece 10 is moved to the retracted position. It is advisable to open the quick exhaust valve in response to a signal to quickly return the start / stop piece 10 in the shutoff position to the retracted position. Further, the start / stop piece 10 does not necessarily have to cross the injection hole 3. That is, it may be extended to a position in contact with the jet flow W so that the jet flow W does not come out from the opening 5.

In the embodiment shown in FIG. 2, the coil spring (not shown) provided on the shaft portion of the upper start / stop piece 10 in the cylindrical case is used to move the start / stop piece so that the start / stop piece 10 is in the contact position. When the compressed air is supplied to the air cylinder 11 and its piston 11 'extends upward, the start / stop piece 10 is set in the retracted position against the spring. As a result, the air cylinder 11 can be supported almost parallel to the fountain nozzle 2, so that the diameter of the cylindrical case can be reduced and the overall size can be made compact.

Further, in the embodiment shown in FIG. 3, two air cylinders 11 each having a start / stop piece 10 as a piston are vertically installed above the inside of the cylindrical case as in FIG. In this way, the fountain flow can be output from the injection hole 3 of the fountain nozzle to the outside through the opening 5 of the cylindrical case or not at a shorter time interval.

Each of the above-mentioned air cylinders 11 has a built-in spring for pushing back the piston, and the piston extends outward by supplying air to the cylinder. However, the air cylinder to be used is not limited to this and the piston It is possible to use a pneumatic operation for both the outward extension and the piston retracting return.

[0011]

As is apparent from the above, according to the present invention, the fountain flow ejected from the fountain nozzle is pneumatically operated to move from the retracted position to the contact position or vice versa at high speed (500 cm / m).
in) It is possible to change the discharge direction of the fountain flow by using a small start / stop piece that operates. Since the drive unit is only an air cylinder, it is very compact and maintenance is easy. Further, since the start / stop piece operates at high speed, the fountain flow is cut into a rod shape as shown in FIG. 4A, the fountain flow is continuously made into a short rod shape as shown in FIG. 4B, and the fountain nozzle is vertically arranged. It is possible to install it and make short sticks or polka dots collide in the air to scatter and make it look as if the water has run out.

[Brief description of drawings]

FIG. 1 is an overall explanatory view of a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a main part of a second embodiment of the present invention.

FIG. 3 is an explanatory view of a main part of another embodiment of the present invention.

FIG. 4 is an explanatory view of a fountain created by the device of the present invention.

[Explanation of symbols]

 1 Cylindrical case 2 Fountain nozzle 3 Injection hole 4 Upper wall of cylindrical case 5 Opening 10 Start / stop piece 11 Air cylinder

Claims (1)

(57) [Scope of utility model registration request] 1. A fountain nozzle is housed in a cylindrical case having an upper wall, and an opening for letting out a fountain flow ejected from a nozzle hole of the fountain nozzle is provided on the upper wall of the cylindrical case. A device for starting and stopping fountain water, characterized in that, in the cylindrical case, a start and stop piece operated by air pressure is provided at a contact position above the injection hole and in contact with the jet flow and at a retracted position away from the jet flow. .