JPH105631A - Sprinkler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arbitrarily adjust a water sprinkling range by providing a plurality of jetting outlets jetting water in mutually different directions and a selection means selecting one or more jetting outlets actually used to jet water among those jet orifices. SOLUTION: When water is introduced from a water pipe through a connection pipe 14 and the water pressure in a sprinkler main body 10 rises, an inner cylinder 12 is moved upwardly against the energizing force of a spring 24 and the leading end member 28 thereof protrudes from the sprinkler main body 10 and a jetting outlet 30 protrudes to jet water to perform water sprinkling. At this time, if the position of a plate 36 is in a neutral state, four holes 40A-40D of the plate 36 overlap with a flow holes 34 of the leading end member 28 and water is jetted from the four jetting outlets to be sprinkled over a 360 deg. range. However, for example, when the plate 36 is turned by 30 deg. counterclockwise by a turning knob 38 to align only two holes 40E, 40G with the flow holes 34 of the leading end member 38, two of the jetting outlets are used to jet water over a 180 deg. range to perform water sprinkling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler capable of adjusting a watering range.

[0002]

2. Description of the Related Art Conventionally, there is a sprinkler (sprinkler) as a device for sowing water in a wide area. The sprinkler is provided with a plurality of jets for jetting water in a circumferential direction, that is, in a 360-degree direction, and is usually installed on the ground and used. The sprinkler sprays water in a 360-degree direction by ejecting water from the plurality of ejection ports. A normal sprinkler sprays water in a 360-degree direction as described above.
Some sprinklers spray water only in the 0 degree direction. Such sprinklers can limit the range of watering and are therefore useful, for example, for sowing water in small home gardens or in gardens where neighbors are in close proximity.

[0003]

However, the sprinkler having such a limited watering range has a problem that the limited watering range is fixed and the watering range cannot be adjusted arbitrarily.

[0004] In addition, since a conventional sprinkler is installed on the ground and used, for example, when mowing a garden lawn with a lawnmower, it is not possible to mow the lawn around the sprinkler installed on the ground. There is a problem.

Accordingly, a first object of the present invention is to provide a sprinkler capable of arbitrarily adjusting a watering range.

A second object of the present invention is to provide a sprinkler which can easily mow the place where the sprinkler is installed even when the sprinkler is installed on the ground. It is.

[0007]

In order to achieve the first object, a sprinkler according to a first aspect of the present invention includes a plurality of spouts capable of receiving water supply and spouting water in different directions. Selecting means for selecting one or more of the spouts for actually spouting water from these spouts.

[0008] The selection means may include opening and closing means for opening and closing a flow path connected to each jet port. The selecting means includes a plate traversing each flow path, and the plate has a plurality of holes at appropriate locations that can be aligned with the flow paths, and the holes are formed in the flow paths selected by predetermined movement of the plate. Water may be supplied to the ejection port in alignment, and the selection means may further include a rotation knob for rotating the plate, and the selection means may be selected by a predetermined rotation of the rotation knob. Preferably, the holes of the plate are aligned with the flow path.

Further, in order to achieve the second object,
A sprinkler according to a second aspect of the present invention is a sprinkler including a sprinkler main body, and a middle cylinder having a spout for receiving water supply and ejecting water, the middle cylinder being vertically movable into the sprinkler body. And a part of the middle cylinder including the spout is projected upward from the sprinkler body with an increase in water pressure in the sprinkler body. Further, it is preferable to further include an urging means for urging the middle cylinder below the sprinkler body.

In addition, a sprinkler main body, a middle cylinder having a plurality of jet ports capable of jetting water in different directions by receiving water supply, and a jet nozzle for actually jetting water among these jet ports. Selecting means for selecting one or more outlets, wherein the middle cylinder is
It is stored in the sprinkler body so that it can move up and down,
It is preferable that a part of the middle cylinder including the spout is projected upward from the sprinkler body with an increase in water pressure in the sprinkler body.

[0011] The selection means is provided with opening / closing means for opening / closing the spout.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention (hereinafter, referred to as an embodiment)
This embodiment will be described with reference to the drawings. The sprinkler according to the present embodiment is used with the entire sprinkler buried in the ground.

FIG. 1 is a front vertical sectional view of a sprinkler according to this embodiment. The sprinkler according to the present embodiment has a sprinkler body 1 mainly formed in a cylindrical shape.
0, a middle cylinder 12 housed in the sprinkler body 10 and movable vertically with respect to the sprinkler body 10.
It is composed of

At the base end of the sprinkler body 10, there is formed a connection portion 14 connected to a hose (not shown) connected to a water pipe. Water is supplied into the sprinkler body 10 through the connection portion 14. Is introduced. A cap 16 is screwed to a tip end side (upper side in FIG. 1) of the sprinkler body 10 via a packing member 18 formed of an elastic material, for example, rubber. In particular, the packing member 18 is provided between the inner cylinder 12 and the cap 1 so as to fill a gap between the outer peripheral surface of the inner cylinder 12 and the inner peripheral surface of the cap 16.
6 is installed. Thus, the packing member 18
Fills the space between the middle cylinder 12 and the cap 16, so that water introduced into the sprinkler body 10 does not leak from these gaps. A spring seat 20 is formed below the packing member 18, and a spring seat 22 is also formed around the base end of the middle cylinder 12. A spring 24 is interposed between the spring seats 20 and 22. The middle cylinder 12 is urged downward with respect to the sprinkler body 10 by the spring 24.
The middle cylinder 12 is prevented from dropping from the sprinkler body 10.

The middle cylinder 12 is formed in a cylindrical shape, and mainly includes a middle cylinder main body 26 and a tip member 28 screwed to the front end side (upper side in FIG. 1) of the middle cylinder main body 26. ing. In the middle cylinder main body 26, a hole 29 is penetrated, and the hole 2
A tapered surface 30 that tapers upward is formed on the distal end side of the inner peripheral surface of 9.

As shown in FIG. 2, a plurality of, for example, four, jet ports 30 for jetting water are provided on the peripheral side surface of the tip member 28 at regular intervals. The spout 30 is formed in a rectangular cross section, and the shape of the passage immediately before it is devised so that the water spouted from one spout 30 is sprayed in a range of 90 degrees. That is, the front end member 28 is provided with the flow path 32 connected to each of the ejection ports 30. The flow paths 32 extend vertically upward from the flow holes 34 (see FIG. 3) formed at equal intervals on the bottom surface of the tip member at the same circle, that is, at 90 ° intervals.
8 is inclined upward in the outward direction from the middle, and its cross section is connected to the jet port 30 while gradually expanding. Since the flow path 32 is connected to the jet port 30 in this way, the jet port 30 can jet water in an oblique direction, and can blow water away.

On the bottom surface of the tip member 28, a plate 36, which is a component of selection means for selecting one or two or more ejection ports from which water is actually ejected, is located across the flow path 32. The plate 36 opens and closes the flow hole 34, and is mounted by a screw 40 to a rotary knob 38 rotatably inserted into the tip member 28. Therefore, the plate 36 is rotated with respect to the tip member 28 with the rotation of the rotation knob 38. As shown in FIG. 4, the plate 36 has holes 40 at intervals of 90 degrees on a circle having the same radius as the flow hole 34 of the tip member 28.
Four holes A, B, C, and D are formed, that is, the four holes 40A, B, C, and D are formed so as to be aligned with the four flow holes 34, respectively. Further, two holes 40E and 40F are formed at 30 ° clockwise and counterclockwise positions of one hole 40A of the four holes 40, respectively.
3 additional holes 40B at 90 ° clockwise at 0A
One hole 40G is formed at a position clockwise of 0 degrees. Therefore, as shown in FIG. 5, when the positions where the holes 40A, B, C, and D at 90-degree intervals are respectively aligned with the flow holes 34 are defined as the neutral positions, as shown in FIG. When 36 is rotated 30 degrees counterclockwise, the two holes 40E, G are aligned with the flow holes 34. When the plate 36 is rotated clockwise by 30 degrees from the neutral position in FIG. 5 as shown in FIG. 7, the holes 40F are aligned with the flow holes 34.

Next, the operation of this embodiment will be described.
First, water is introduced into the sprinkler body 10 from the water pipe via the connecting portion 14 and when the sprinkler body 10 is filled with water, the inside of the sprinkler body 10 is sealed by the packing member 18 or the like. The water pressure in the main body 10 increases. At this time, the middle cylinder 1
2 is accommodated in the sprinkler body 10 so as to be movable in the vertical direction, and the water pressure acts on the tapered surface 30 upward, so that the middle cylinder 12 moves upward against the urging force of the spring 24, As shown in FIG. 8, the tip member 28 of the middle cylinder 12 is in a state of protruding from the sprinkler body 10. At this time, since the spout 30 protrudes from the sprinkler body 10, water is spouted from the spout 30 to spray water.

At this time, as shown in FIG.
Is neutral, the four holes 40A, B, C, and D of the plate 36 overlap the flow holes 34 of the tip member 28, so that water is ejected from the four ejection ports 30 and the 360 ° Can be sprinkled in the area. Further, by rotating the rotary knob 38, the plate 36 is moved to the position shown in FIG.
When rotated 30 degrees counterclockwise from the neutral state shown in FIG. 6, the two holes 40 of the plate 36 as shown in FIG.
E and G are aligned with the flow holes 34 of the tip member 28, and water is spouted from the two spouts 34 to spray water in a range of 180 degrees. Further, when the plate 36 is rotated clockwise by 30 degrees from the neutral state shown in FIG. 5 by rotating the rotating knob 38, only one hole 40F of the plate 36 becomes the tip as shown in FIG. Aligned with the flow hole 34 of the member 28, water is jetted from one
Watering is performed in a range of 0 degrees.

When the introduction of water into the sprinkler body 10 is stopped, the water pressure in the sprinkler body 10 drops. At this time, since the middle cylinder 12 is urged downward with respect to the sprinkler body 10, it is moved below the sprinkler body 10, and the entire middle cylinder 12 is housed in the sprinkler body 10. Therefore, in the present embodiment, since the sprinkler is installed buried in the ground, when water is not introduced into the sprinkler body 10, a part of the sprinkler does not protrude from the ground.

As described above, the sprinkler according to the present embodiment can change the watering range from 360 degrees to 180 degrees or 90 degrees by a simple operation of rotating the rotary knob 38. Further, when the sprinkler according to the present embodiment is not used, that is, when water is not introduced into the sprinkler body 10, a part of the sprinkler does not protrude from the ground, so that the area around the sprinkler is installed. You can easily mow the grass in the area.

As described above, in the present embodiment, the opening to be actually ejected is selected by opening and closing the flow hole. However, the present invention is not limited to this. Depending on the situation, the spout to be actually spouted may be selected. Further, in the present embodiment, the spring for biasing the middle cylinder downward with respect to the sprinkler body is provided.However, it is not always necessary to provide the spring, and when the introduction of water into the sprinkler body is stopped, What is necessary is just to store a middle cylinder in a sprinkler main body.

[Brief description of the drawings]

FIG. 1 is a front vertical sectional view of a sprinkler according to an embodiment of the present invention.

FIG. 2 is a front view of a tip member of the sprinkler according to the embodiment.

FIG. 3 is a bottom view of a tip member of the sprinkler according to the embodiment.

FIG. 4 is a plan view of a plate of the sprinkler according to the embodiment.

FIG. 5 is a schematic diagram showing a state in which holes of a plate of a sprinkler and flow holes of a selection member overlap each other according to the embodiment.

FIG. 6 is a schematic diagram showing a state in which holes of a plate of a sprinkler and flow holes of a selection member overlap each other according to the embodiment.

FIG. 7 is a schematic diagram showing a state in which holes of a plate of a sprinkler and flow holes of a selection member overlap according to the embodiment.

FIG. 8 is a view corresponding to FIG. 1 and showing a state in which water is being spouted from the sprinkler according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Sprinkler main body 12 Middle cylinder 24 Spring 30 Spout 32 Flow path 36 Plate

Claims (8)

[Claims] 1. A plurality of jet ports capable of jetting water in mutually different directions upon receiving a supply of water, and selecting means for selecting one or more jet ports for actually jetting water from the jet ports. And a sprinkler comprising: 2. The sprinkler according to claim 1, wherein said selection means includes opening and closing means for opening and closing a flow path connected to each of the ejection ports. 3. The selection means comprises a plate traversing each flow path, and the plate has a plurality of holes at appropriate locations which can be aligned with the flow paths, and the plate selected by a predetermined movement of the plate. The sprinkler according to claim 1, wherein the hole is aligned with a path so that water is supplied to the jet port. 4. The apparatus according to claim 1, wherein said selecting means includes a rotary knob for rotating said plate, and aligns a hole of said plate with a flow path selected by a predetermined rotation of said rotary knob. The sprinkler according to claim 3. 5. A sprinkler comprising: a sprinkler body; and a middle cylinder having a spout for ejecting water by receiving a supply of water, wherein the middle cylinder is housed in the sprinkler body so as to be vertically movable. A sprinkler, wherein a part of the middle cylinder including the spout is projected upward from the sprinkler body with an increase in water pressure in the sprinkler body. 6. The sprinkler according to claim 5, further comprising: urging means for urging the middle cylinder below the sprinkler body. 7. A sprinkler main body, a middle cylinder having a plurality of spouts capable of spouting water in different directions by receiving water, and a spout for actually spouting water among the spouts. Selecting means for selecting one or more of the sprinklers, wherein the middle cylinder is housed in the sprinkler body so as to be vertically movable, and a part of the middle cylinder including the spout is a sprinkler body. A sprinkler characterized by being projected upward from a sprinkler body with an increase in water pressure inside the sprinkler. 8. The sprinkler according to claim 1, wherein said selection means includes opening / closing means for opening / closing a jet port.