JPH0523241Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a snow-melting water nozzle that is buried in the road surface and sprinkles groundwater or river water to eliminate snow.

[Conventional technology] In a conventional water spray nozzle, water flowing from a rising water pipe is introduced into a rectifying chamber through a water regulating valve provided in the center of the nozzle body, and the water is directed linearly through the regulating chamber to the water sprinkling hole. It is a structure in which water used to flow, and water was sprinkled through the sprinkler holes.

[Problem that the invention attempts to solve]

Conventional water sprinkling nozzles that flow linearly toward the water sprinkling holes within the rectifying chamber have the disadvantage that water is often sprayed unevenly from each sprinkling hole due to the pressure of the water flowing in from the water pipe. It was hot.

[Means for solving problems]

The present invention solves these drawbacks, and its structure will be described in detail with reference to the accompanying drawings as follows.

Water flowing in from the rising water pipe 2 to which the nozzle body 1 is attached is introduced into the rectification chamber 4 through the water regulation valve section 3 provided in the center of the nozzle body 1.
At the water sprinkling nozzle a that sprays water from the water sprinkling hole 5 drilled in the upper wall, water led out from the valve hole 6 of the water regulating valve section 3 collides with the inner circumferential surface of the outer wall forming the rectifying chamber 4. A horizontal annular groove X is provided in which a downwardly inclined surface 7' and an upwardly inclined surface 7'' are disposed above and below to generate a vortex.
A horizontal annular protrusion 7 is formed at the top of this horizontal annular groove, and an annular waterway Y is formed between this horizontal annular protrusion 7 and the valve cylinder 11, and the annular waterway Y collides with the lower surface of the nozzle plate 10 above the annular waterway Y. It is characterized in that a surface Z is formed.

[Effect]

The water rising and flowing out from the water pipe 2 is led out to the rectifying chamber 4 through the valve hole 6 of the water regulating valve section 3 provided in the center of the nozzle body 1.

At this time, the water led out from the rectifying chamber 4 hits the horizontal annular groove X in the front, and the downwardly inclined surface 7'
Then, it becomes a vortex by the upwardly inclined surface 7'' and is guided to the annular waterway Y, and hits the upper collision surface Z.
Since water cannot flow straight toward the water sprinkling hole 5, and the vortex flow detours toward the water sprinkling hole 5, compared to the case where the water is guided straight to the upwardly inclined surface 7'', the rectifying chamber 4 becomes uniform, the amount of water sprayed from each water sprinkling hole 5 and the flying distance become substantially uniform, and a good water sprinkling condition is obtained.

〔Example〕

In the nozzle board 10 shown in the drawing, a valve insertion hole 8 is bored in the center of the nozzle board 10, and a valve cylinder 11 having an inner diameter larger than the valve insertion hole 8 is vertically provided in the valve insertion hole 8.
The lower end of the adjustment valve 14 is extended to the upper surface of the wall forming the water passage hole 12, and the adjustment valve 14 with a stopper step 13 is rotatably fitted into the valve insertion hole 8 and the valve cylinder 11. This figure shows a case in which a valve cylinder part 15 is formed in the valve cylinder part 15 and a water flow regulating valve hole 6 whose hole area can be varied by rotating the regulating valve 14 is bored in the valve cylinder part 15 and the valve cylinder 11.

In addition, the nozzle board 10 in the drawings has this valve insertion hole 8.
The case is shown in which a square wrench rod is pushed into the square hole 17 in the upper part of the nozzle plate 10 and the nozzle plate 10 is rotated to be attached or detached.

A protection plate 18 is fitted into the square hole 17 to prevent dust, sand, etc. from clogging the upper surface of the regulating valve 14.

A case is shown in which a minus groove 19 is provided on the top surface of the adjustment valve 14 and the minus screwdriver rod, for example, is engaged with this minus groove 19 to rotate, but a plus groove may also be used.
Any method that allows rotation is fine.

The drawing also shows that a recess 21 without a threaded groove is formed in the outer base of the nozzle board 10 and the inner base of the nozzle body 1, and a packing 2 made of rubber, for example, is formed in the recess 21.
2 is used to ensure screw fixation of the nozzle plate 10, other methods may be adopted.

Further, a concave strip 23 is provided on the upper outer surface of the regulating valve 14, and a packing 22 is similarly interposed in the concave strip 23 to securely fit the regulating valve 14 so that the regulating valve 14 does not wobble due to water pressure. Although this example shows a case where this is done reliably, other methods may also be used.

In addition, two grooves 23 are formed on the lower part of the inner surface of the nozzle body 1.
The nozzle body 1 is wrapped around the nozzle body 1 with a gap of this size, and a packing 22 is similarly interposed in this concave line 23.
Although this example shows a case in which the fixation of the material is ensured, other methods may be used.

Further, the drawings show a case where the fixing effect of the nozzle body 1 is exerted by forming fixing recesses 20 on the upper outer circumferential surface and the base outer circumferential surface of the nozzle body 1.

In addition, when the water nozzle is not used, such as in spring, summer, and autumn, the nozzle plate 10 can be removed and a cap plate of the same size as the nozzle plate 10 can be screwed onto the upper water sprinkling hole to prevent wear on the nozzle plate 10 surface. No. 5 clogging can be prevented.

Reference numeral 9 in the figure is a locking step.

[Effect of idea]

The present invention includes a horizontal annular groove, a horizontal annular flange, and an annular waterway, which change the direction of water flow when the water discharged from the valve hole of the water regulation valve collides with the inner circumferential surface of the outer wall that forms the rectification chamber. Since the collision surfaces are arranged one after another from below, the water led out from the rectifying chamber hits the horizontal annular groove in front, becomes a vortex by the downwardly inclined surface and the upwardly inclined surface, is guided into the annular waterway, and flows upward. Since the water collides with the collision surface of the water, it cannot go straight towards the water sprinkling hole, and the vortex flow detours and heads towards the water sprinkling hole, compared to when the water is guided straight to an upwardly sloping surface. , the water pressure in the rectification chamber becomes uniform, and the amount and distance of water sprayed from each watering hole are almost uniform.
This is a water spray nozzle that exhibits excellent practical effects such as obtaining good water spray conditions.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a perspective view and FIG. 2 being a sectional view thereof. a...Water nozzle, X...Horizontal annular groove, Y...
Annular waterway, Z... Collision surface, 1... Nozzle body, 2
... Rising water pipe, 3 ... Water regulating valve part, 4 ...
Rectification chamber, 5...Water hole, 6...Valve hole, 7...Horizontal annular flange, 7'...Downward slope, 7''...Upward slope, 10...Nozzle plate, 11... Valve cylinder.

Claims (1)

[Scope of utility model registration request] Water flowing in from the rising water pipe 2 to which the nozzle body 1 is attached is introduced into the rectification chamber 4 through the water regulation valve section 3 provided in the center of the nozzle body 1.
At the water sprinkling nozzle a that sprays water from the water sprinkling hole 5 drilled in the upper wall, water led out from the valve hole 6 of the water regulating valve section 3 collides with the inner circumferential surface of the outer wall forming the rectifying chamber 4. A horizontal annular groove X is provided in which a downwardly inclined surface 7' and an upwardly inclined surface 7'' are disposed above and below to generate a vortex.
A horizontal annular protrusion 7 is formed at the top of this horizontal annular groove, and an annular waterway Y is formed between this horizontal annular protrusion 7 and the valve cylinder 11, and the annular waterway Y collides with the lower surface of the nozzle plate 10 above the annular waterway Y. A water spray nozzle for snow removal characterized by forming a surface Z.