JPH0566185B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a watering device that sprinkles water in the form of mist, which is connected to a hose connected to a water faucet or a water pipe connected to a pump. .

[Prior Art] Generally, when sprinkling tap water, a drip-shaped sprinkler with a large number of sprinkling holes is attached to the end of a hose connected to a faucet, water pressure is stored, and the pressure is increased from the sprinkling holes. Normally, water is discharged and sprinkled with water. Of course, if a higher water pressure than tap water can be obtained, a nozzle with a small sprinkling hole may be used, but when sprinkling a large amount of water with low water pressure, especially tap water. This type of nozzle is not suitable for this purpose, and a poplar type water sprinkler is generally used.

This dew-shaped water sprinkler is widely used for water removal and cleaning work, but conventional ones consist only of a perforated plate with many water holes, and the water is fed through a hose. Pressure water is passed exclusively through these small sprinkling holes to diffuse and spray water. However, with this water spray plate alone, it was not possible to spray water by reducing water droplets to the size of a mist. Of course, it is theoretically possible to reduce the diameter of the watering hole in order to reduce the size of water droplets, but if the hole diameter is made smaller, the discharge force will decrease and water cannot be sprayed widely or far, and at the same time the water pressure inside the hose will decrease. becomes unsuitable for actual use.

One possible measure to prevent this water pressure from increasing is to increase the number of water spray holes. However, this method increases the area of the sprinkler plate, making it unsuitable for use as a sprinkler, and at the same time making it impossible to increase the scattering distance, which is not a sufficient solution.

[Problems to be Solved by the Invention] The present invention has been researched and developed in view of the unsolved problems in the conventional water sprinklers mentioned above, and its purpose is to spread a sufficient distance by using normal tap water pressure. In addition, it is an object of the present invention to provide a water sprinkling device capable of turning water droplets discharged from a water sprinkling hole of a water sprinkling plate into fine water droplets and discharging them in the form of mist.

As mentioned above, conventional water sprinklers have a structure that uses a perforated water plate to diffuse and sprinkle water, but the sprinkling of water through the water sprinkling holes of this water plate is a simple extrusion of water, and it produces minute water droplets. To achieve this, it is necessary to rely on reducing the pore size of the water spray holes, arranging them closely, and increasing the water pressure. However, when the sprinkler holes are made smaller, the discharge force decreases, the scattering distance decreases, and at the same time the dispersion power decreases, making the sprinkler function ineffective. etc., resulting in problems that lack practicality.

[Means for Solving the Problems] In view of these points, the present invention forms a pressure chamber inside a water spout to which a water sprinkling plate made of a perforated plate is attached, and a plurality of discharge holes are opened in this pressure chamber. While supplying water to the pressure chamber through this discharge hole, a barrier plate is attached to the pressure chamber, and the water discharged from the discharge hole is brought against this barrier plate to prevent water from being discharged straight from the water spray plate. At the same time, it is an object of the present invention to provide a water sprinkling device capable of atomizing water droplets and spraying water in the form of mist by disturbing the water flow while increasing the water pressure inside a pressure chamber and irregularly passing it against a water sprinkling plate.

That is, in the present invention, the water outlet is formed into a cylindrical shape, a water sprinkling plate made of a perforated plate is attached to this opening, and a partition is provided inside to form a pressure chamber. A plurality of discharge holes are opened at intervals along the inner circumferential wall surface, and an annular barrier plate having a female thread formed on the circumferential surface of the pressure chamber and a male thread formed on the outer circumferential surface is screwed. It is an object of the present invention to provide a water sprinkler device characterized in that it is disposed opposite to a discharge hole so as to freely approach and separate from it.

The discharge holes are arranged along one circumference by arranging them along the inner peripheral wall surface of the pressure chamber,
Similarly, an annular barrier plate housed along the inner circumferential wall surface is disposed opposite to the discharge hole in such a manner as to close the front side of these discharge holes.

This annular barrier plate is placed in advance with a predetermined spacing between it and the discharge hole, and in the present invention, this spacing can be arbitrarily adjusted by twisting using the female thread as a guide. It's like this. and,
Pressurized water sent out through each discharge hole hits and prevents it from going straight, and at the same time bends the flow inward through the above-mentioned intervals, creating turbulent flow inside the pressure chamber and irregularly hitting the water sprinkling plate that blocks the front surface of the water outlet. I take it as a thing.

The distance between this barrier plate and the discharge hole must be changed depending on the water pressure used. The present invention deals with this change in water pressure by adjusting the distance between the barrier plate and the discharge hole, thereby constantly forming a good turbulent flow inside the pressure chamber.

[Function] The water sprinkling device of the present invention is attached to a hose connected to a water faucet and used for water sprinkling or cleaning.

Pressure water sent through a hose etc. passes through each discharge hole and hits the barrier plate as described above, and its straight jetting is blocked, and at the same time, the flow is refracted inward and concentrated at the center of the pressure chamber. Turbulence is created. At the same time, the water pressure increases and it hits the perforated sprinkler plate blocking the front. Water is sprayed through the many water sprinkling holes formed on this water sprinkling plate, and the water spouted through the water sprinkling holes is strongly squirted out due to pressure and is pushed out in a violently turbulent state, resulting in fine particles. It gushes out,
Overall, the water is sprayed in an extremely soft mist.

Next, an embodiment illustrating a water sprinkler according to the present invention will be described, and its features will also be described in detail.

[Example] Figure 1 is a perspective view of the water sprinkler device of the present invention,
Figures 2 and 3 are enlarged side views with main parts in cross section, Figure 4
The figure is an enlarged cross-sectional side view of the main part, partially disassembled.
FIG. 5 is a partially cutaway front view of the main parts.

The water sprinkling device shown here is an example in which the water pressure is high and the water can be switched between two types: a straight water sprinkling state and a mist water sprinkling state.

In the drawing, 1 is a connection body that is connected to the tip of a hose that connects to a water faucet, etc., 2 is a water conduit pipe extending from the tip of this body so that the inside communicates with it, and 3 is a long connection body to the water conduit 2. This is a water outlet that is slidably fitted along the horizontal direction.

The water guide pipe 2 has its tip closed with a cap member 4 so that water can be sent forward through a water hole 5 formed in the cap member, and a plurality of communication holes 6 are formed on the circumferential surface in the middle of its length. However, it is arranged so that it can communicate with a discharge hole which will be described later.

The water discharge port 3 has a cylindrical shape and is fitted from the tip of the water conduit pipe 2 so as to wrap around it. The water discharge port 3 has a thick wall approximately at the center of its length, and a plurality of discharge holes 7 are formed in the thick wall along the length, with one end of each opening opening on the inner wall surface. The other end is opened forward from the thick stepped surface 8.

Reference numeral 9 denotes an injection nozzle screwed onto the stepped inner circumferential surface, and a disk-shaped mounting plate 10 for this nozzle serves as a partition wall that substantially divides the interior of the water outlet section 3 into two.

Reference numeral 11 denotes a water sprinkling plate made of a perforated plate attached to the inner periphery of the enlarged diameter tip opening of the water spout 3, and 12 is a ring having a male thread formed on the outer circumferential surface for fixing this water sprinkling plate.

The inside of the water spout section 3 is opened by the nozzle mounting plate 10, and the front side thereof is closed with the water sprinkling plate 11 to form a pressure chamber 13 inside, and this pressure chamber has a female thread 14 cut on the inner circumferential wall. An annular barrier plate 15 is screwed and fitted onto this female screw.

The barrier plate 15 is provided with a male thread 16 on its outer peripheral surface, and is mounted inside the pressure chamber 13 by screwing this male thread into the female thread 14, so that it faces the discharge hole 7 opening in the surface 8 of the step. By changing the amount of twisting, the distance 17 with respect to the discharge hole 7 can be increased.
It is possible to change.

This obstacle plate 15 faces the front surfaces of all the discharge holes 7 in the screwed state, and is mounted so that its inner peripheral edge 15a substantially coincides with the extension line of the inner edge of each discharge port 7. Ru.

In the figure, 18 is a gasket attached to the back of the mounting plate 10 of the nozzle 9, 19 is a gasket inserted along the edge of the back of the water sprinkling plate 11, and 20 is a gasket attached between the water pipe 2 and the water outlet. This is an O-ring provided for sealing.

The water sprinkling device configured as described above can be switched between a linear water sprinkling state and a mist-like water sprinkling state. Second
The figure shows the water spraying state, and Figure 3 shows the watering state.

In order to discharge water, as shown in FIG. It is set by positioning it at the tip of the groove 22. At this time, the water outlet part 3 slides forward and the gasket 18 is separated from the cap member 4, and the water sent through the water pipe is temporarily discharged into the interior of the water outlet part 3 through the water hole 5 of this cap member. .

The water discharged through this water hole 5 is
The pressure is increased by passing through the through hole 18a of No. 8, and water is discharged linearly in front of the water outlet through the nozzle 9 communicating therewith.

In this state, as shown in FIG. 3, when the water outlet 3 is pulled along the guide groove 22 and the pin 21 is hooked onto the hook, the packing 18 comes into contact with the front surface of the cap member 4, The boss-shaped convex portion 4a closes the through hole 18a and stops the flow from the water hole 5, so that water discharge from the nozzle is stopped. At the same time, as the water discharge port slides, one end of the discharge hole 7 communicates with the communication hole 6 of the water conduit 2, so that the water inside the water conduit is led to the pressure chamber 13 through the discharge hole 7.

As mentioned above, the water guided through the discharge hole 7 hits the barrier plate 15 provided in front of it, and some of it passes through the edge 15a, and most of the other water is refracted inward through the gap 17 and goes straight. It interacts with the water and is disturbed. The water refracted along with this merges at the center of the barrier plate, becomes a turbulent flow inside the pressure chamber, and hits the water sprinkling plate 11, and the water whose water pressure has been increased in this pressure chamber flows from each water sprinkling hole into a mist. The water is sprayed out in the form of fine water droplets.

The water spouted through the sprinkler holes of this sprinkler plate is
Although it was not possible to confirm the exact flow inside the pressure chamber, visual confirmation revealed that it formed a vortex and was turbulent.

By the way, as a result of the experiment, the discharge hole 6 and the obstacle plate 15
The gap 17 between the tap water and the tap water is connected to the tap water. Under normal water pressure, a gap of about 2 to 5 mm is appropriate. If it is narrower than this, sufficient water pressure will not be obtained and a good jetting condition will not be obtained. Ta. In addition, when the area was wide, there was no effect of the barrier plate, and water was sprinkled in large droplets that were almost the same as when they were removed.

The barrier plate 15 in the present invention is screwed in order to always obtain the best water sprinkling condition in accordance with the water pressure used. When the water pressure is low, the barrier plate 15 is screwed in deeper so that it approaches the discharge hole 7, and the distance between the barrier plate 15 and 17, and when using high pressure water, unscrew and widen the interval.
The jetting force through the discharge hole is not obstructed, and a good turbulent flow can be formed in response to the amount of water that accompanies changes in water pressure.

Incidentally, the twisting operation of the obstacle plate 15 can be performed by removing the ring 12 and removing the water spray plate 11 that blocks the front surface of the pressure chamber 13, but a slit is opened on the circumference of the water discharge port 3 along the female thread 14. However, by inserting the operating pin through this slit into the male threaded peripheral surface of the barrier plate, it becomes possible to operate the sprinkler plate from the outside without removing it.

[Effects of the Invention] The water sprinkling device according to the present invention has been described above based on the illustrated embodiment, but as described above, the pressure chamber 1
A plurality of discharge holes 7 opened along the inner circumferential wall surface of 3
The pressure water released from the outlet is discharged through this discharge hole, and at the same time the barrier plate 1 waits in front of it.
5, where the straight flow is refracted,
The water is mixed as if being stirred, creating a turbulent flow, and as a result, the water is prevented from flowing out by the sprinkler plate, and a sufficient increase in water pressure is obtained. As a result, the water is pushed out with strong force from the sprinkler holes of the sprinkler plate, and irregularly. The water is ejected in a direction, turning into fine water droplets, which are violently ejected and sprayed in the form of mist.

In particular, the water sprinkling device of the present invention does not use a nozzle to apply high water pressure to spray water from small diameter holes, but rather sprays water through a large number of water holes provided in the water sprinkling plate, so a large amount of water is sprayed. It can be used extremely conveniently in cleaning operations that require a large amount of water in the form of a shower.

In addition, since the device of the present invention has a structure in which the barrier plate housed in the pressure chamber is annular and has a large opening in the center, the flow rate is not restricted, and the water sprayed forms fine mist droplets. At the same time,
It is convenient for watering and cleaning because it forms a bundle of water and releases it in a straight line over a long distance.

In particular, the water sprinkling device of the present invention adjusts the distance between the discharge hole facing the inside of the pressure chamber and the barrier plate according to the water pressure used to create a turbulent flow according to the water pressure and water volume, and can constantly obtain fine water droplets. Another advantage is that you can change the size of the water droplets to your liking.

[Brief explanation of drawings]

The drawings show an embodiment of the device of the present invention; Fig. 1 is a perspective view, Fig. 2 is an enlarged side view showing a partial cross section of the main part in a state of straight water discharging, and Fig. 3 is a main part in a state of water spraying. Enlarged side view with partial cross section,
FIG. 4 is a partially exploded cross-sectional enlarged side view of the main part, and FIG. 5 is a partially cutaway front view of the main part. 3... Water outlet portion, 7... Discharge hole, 10... Mounting plate serving as a bulkhead, 11... Water spray plate, 13... Pressure chamber, 14... Female thread, 15... Obstacle plate, 16... Male thread of obstacle plate.

Claims (1)

[Claims] 1 A water spray plate made of a perforated plate is attached to the opening of a cylindrical water outlet, and a partition wall is provided inside to form a pressure chamber. An annular barrier plate having a female thread formed on the peripheral wall surface of the pressure chamber and a male thread formed on the outer peripheral surface is screwed so that the pressure chamber can freely approach and separate from the discharge hole. A watering device characterized by being installed oppositely.