JPS6031808Y2 - water sprinkler - Google Patents

Description

[Detailed description of the invention] This invention is mainly used for irrigation or chemical treatment in farms and forests.
This invention relates to a watering device used for spraying liquid fertilizer, etc.

As a conventional water sprinkler device of this type, the one shown in FIG. 1 is known.

This conventional watering device 1 has a lower vertical pipe 4 made of steel pipe or aluminum pipe, and an upper vertical pipe 5 for the lower vertical pipe 4.
A water sprinkler 7 is attached to the tip 3a of a water conduit 3 formed by telescopically connecting the water pipes 3 through an angle adjusting joint member 6 (spherical joint member).

The water sprinkler device 1 is supported by securing the lower vertical pipe 4 to a support 2 which is erected at a position close to the side of the lower vertical pipe 4 of the water guide pipe 3.

The upper vertical tube 5 is fixed by a stopper device 8 attached to the upper end of the lower vertical tube 4 in a state where it is expanded or contracted by an appropriate height.

The angle adjustment joint member 6 is used to adjust the direction of the nozzle of the water sprinkler 7. For example, when the water sprinkler 1 is installed on a slope such as a mountainous area, water is sprinkled according to the inclination angle of the slope. The container 7 is bent so that water can be sprayed in an appropriate direction.

However, this conventional sprinkler system has the following problems.

(1) Since only the lower vertical pipe 4 of the water conduit 3 is fixed to the column 2, the upper vertical pipe 5 is unstable and shakes due to the water pressure and impact of the sprinkler 7, resulting in poor uniformity of watering.

In particular, when the upper vertical tube 5 is extended upward as shown in FIG. 2, it becomes even more unstable.

(2) The upper and lower vertical pipes 5 and 4 of the water conduit 3 are made of large-diameter steel pipes or aluminum pipes for strength reasons, making them expensive.

(3) Even when the water pipe 3 is in the most contracted state, the water sprinkler 7
is located above the upper end of the lower vertical pipe 4, and therefore, the water pipe 3 is located at a relatively high location, so water, etc. may come into contact with the leaves of trees, etc. during irrigation and liquid fertilizer application (see Figure 2). (state shown in dashed line).

The present invention was devised in view of the problems of conventional water sprinklers as described above, and can be manufactured at low cost, has good stability, and is easy to operate, allowing the height of the water sprinkler to be adjusted over a wide range in the vertical direction. The purpose of this invention is to propose a water sprinkler device that can be set at any desired position.

Hereinafter, the water sprinkling device of the present invention will be explained based on the embodiment shown in FIGS. 3 to 5. This water sprinkling device 20 includes a fixed pipe 31 for water supply buried underground, and
It has a water conduit 30 connected to the water conduit 30 and a self-supporting guide column 21 for supporting the water conduit 30.

The fixed pipe 31 is made of metal or hard synthetic resin, has a large bend 31b at its tip, and is buried in the soil with the open end 31a of the tip protruding upward above the ground. has been done.

The water conduit 30 is formed of a hose made of semi-hard rubber or synthetic resin such as polyethylene, which has relatively high hardness and appropriate flexibility, and has a water sprinkler 3 at its tip 30a.
8 is installed.

The lower end 30b of the water conduit 30 is inserted into the large bend 31b at the tip of the fixed pipe from the open end 31a of the fixed pipe 31 in a watertight manner, and is connected to the fixed pipe 31 in a freely expandable and contractable manner.

That is, the lower end 30b of the water conduit 30 is connected to the fixed pipe 31.
The length of the water conduit 30 can be arbitrarily set by pushing it in or pulling it out from the fixed pipe 31.

The lower end 30b of the water conduit that has been pushed into the fixed pipe 31 is bent at the large bend 31b and accommodated therein along the inner surface of the fixed pipe.

At this time, watertightness between the fixed pipe 31 and the water conduit 30 is maintained by a packing 32 provided at the open end 31a of the fixed pipe, as shown in FIG.

Note that the water conduit 30 is fixed to the fixed pipe 31 by a fixing screw 42 provided at the fixed pipe opening end 31a.

The tip 30a of the water pipe 30 is connected to a self-supporting guide column 21 installed adjacent to the water pipe 30 and the guide column 21.
The fixed pipe opening end 31 is supported by a water pipe support device 41 consisting of a holder 22 that moves up and down along the holder 22 and a bendable bending arm 25 whose one end is connected to the holder
It is supported directly above a.

The guide column 21 is formed of an L-shaped angle member having an appropriate length, and the lower part 21b of the guide column 21 is embedded in the concrete base 40.

Note that the length of this support 21 is appropriately set depending on the use of the water sprinkler.

The holder 22 is formed of a short rectangular pipe having a hole 23 for inserting the support 21 therein. It can be slid.

Further, this holder 22 can be fixed at an appropriate height position of the support column 21 with a bundle tightening bolt 24.

The bending arm 25 has a flat base end 26 . It is composed of three members, an L-shaped intermediate rod 27 and an open end rod 28, and the bending arm 25 moves up and down together with the holder 22.

The proximal end 26a of the proximal end 26 is attached to the side surface of the holder 22, the proximal end 27a of the intermediate rod 27 is attached to the distal end 26b of the proximal end 26, and the proximal end 28a of the distal end 28 is attached to the distal end of the intermediate rod 27. 27
b by fixing bolts 29, 29, 29, respectively.

In addition, by loosening the fixed poles 29, 29, and 29 of the base end 26, intermediate rod 27, and tip 28, respectively, the base end 26 can be moved in the vertical direction (A-B direction) with respect to the holder 22. The intermediate rod 27 has a distal end 26b of the base end 26 extending in the front-rear direction (C-D direction) with respect to the holder 22, and the distal end 28 has a distal end 26b of the intermediate rod 27 with respect to the holder 22 in the left-right direction (C-D direction). It can be bent in the E-F direction.

The distal end 30a of the water conduit 30 is secured to the distal end 28 of the bending arm 25 by securing bands 39, 39.

Therefore, the water sprinkler 38 provided at the tip of the water conduit 30 adjusts its nozzle 38 at 3 according to the inclination of the bending arm 25.
8a can be tilted in an appropriate direction.

This watering device 20 is installed with the support 21 facing vertically upward and the concrete base 40 portion thereof being buried in the ground.

Furthermore, as shown in FIG. 5, when spraying insect repellent, this watering device 20 performs the spraying work with the holder 22 fixed above the support 21 and the watering device 38 disposed at a high place (
Solid line diagram 38), holder 22 when watering or spraying liquid fertilizer.
The sprinkler 38 is lowered to the lower part of the pillar 21 as shown by the chain line 22', and the spraying work is carried out with the sprinkler 38 placed at a low location (the chain line 38').

At this time, as the water sprinkler 38 moves in the vertical direction, the water pipe 3
The lower part of 0 slides inside the fixed pipe 31 along its inner surface to adjust the above-ground length of the water conduit 30, and the sprinkler 38 is moved from the position 38 shown by the solid line to the position 38' shown by the chain line. The height can be set arbitrarily within the range of .

Incidentally, the nozzle 38 at 38a of the water sprinkler 38 is used with an appropriate inclination depending on the conditions of the installation location (see reference numeral 38'').

Further, in another embodiment of the present invention, a corrugated pipe formed in a bellows shape may be used as the fixed pipe 31, as shown in FIG.

In this way, the frictional resistance between the inner surface of the fixed pipe 31 and the water conduit 30 housed inside the fixed pipe 31 is reduced, so the work of inserting and pulling out the water conduit 30 into and out of the fixed pipe 31 is reduced. It can be easily performed using only manual force.

Next, to explain the effects of the present invention, the water sprinkler of the present invention has the following effects.

(1) A holder 22 that can be slid vertically is attached to a self-supporting guide column 21 having a certain length, and a water guide pipe 3 with a water sprinkler 38 is attached to the holder 22.
Since it is configured to support 0, the structure is simple and it can be manufactured from relatively inexpensive materials, so the cost of the sprinkler device as a whole can be reduced.

(2) Since the sprinkler 38 is fixed at a position close to the support column 21 with its upper end supported by the holder 22, stability is improved.

(3) When the water sprinkler 38 is moved in the vertical direction, the water guide pipe 30 is accommodated in the fixed pipe 31 so as to be expandable and contractible so that its length can be adjusted to an arbitrary length according to the installation height of the water sprinkler 38. Therefore, the water conduit pipe 30 can be easily expanded and contracted, and the water sprinkler 38 can be fixed at any height within a large range from near the top of the support 21 to near the base.

(4) Since the water conduit pipe 30 is made into a single unit and is directly connected to the fixed pipe 31, there are fewer pipe joints and the cost is low, and there is little risk of liquid leakage.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional water sprinkling device, Fig. 2 is a usage state diagram of the water sprinkling device of Fig. 1, Fig. 3 is a perspective view of the water sprinkling device of the embodiment of the present invention, and Fig. 4 is a diagram of the water sprinkling device of Fig. 3. FIG. 5 is an enlarged sectional view of part (2), FIG. 5 is a usage state diagram of the sprinkler device of FIG. 3, and FIG. 6 is a partially sectional perspective view of a fixed pipe in another embodiment of the present invention. 21...Guide support column, 22...Holder, 30...Water pipe, 30a...Water pipe tip, 30b...Water pipe Lower end, 31...
...Fixed pipe, 31b... Fixed pipe tip, 38... Water sprinkler.

Claims (1)

[Scope of utility model registration request] The tip of the fixed pipe 31 for water supply has a large arc-shaped bend 3
1b, with its open end 31a facing upward, and having appropriate hardness and flexibility, and its tip 30.
The lower end 30 of the water pipe 30, which is formed by connecting the water sprinkler 38 to a
b is fitted into the fixed pipe 31 from its open end 31a in a watertight manner, and furthermore, the water conduit pipe 30 is inserted into the large bent portion 31
While being bent at b, it can be freely inserted into and removed from the fixed pipe 30, and can also be moved up and down along the guide column 21 erected adjacent to the water conduit pipe 30 and fixed at an arbitrary height. A water sprinkling device characterized in that an upper end 30a of the water pipe 30 is supported by a holder 22 having the above-mentioned structure.