JPH0532206Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water sprinkling nozzle that can easily adjust the water spray height and can spray water in a constant state.

[Problems to be solved by conventional techniques and ideas]

Water nozzles are often made of hard iron because they are buried in the road surface on which cars drive, and cars run on top of the nozzles.

The valve mechanism that adjusts the water sprinkling height from the water sprinkling hole of such a water sprinkling nozzle consists of screwing an adjusting valve into a valve hole drilled in the center of the nozzle panel, and adjusting the rotation of the adjusting valve to adjust the height of the water spraying from the adjusting hole of the valve hole. This is done by varying the hole area between the control hole and the control hole of the control valve, but since it is made of iron, it rusts, and this rust causes the screws to become ineffective, causing the entire control valve to fall out due to water pressure, allowing groundwater to flow directly from the valve hole. gushes out,
The disadvantage is that the watering height cannot be adjusted.

[Means to solve the problem]

The gist of the present invention will be explained with reference to the accompanying drawings.

A nozzle consisting of a base cylinder part a that fits into a riser pipe 1, a middle cylinder part b having a water passage hole 2, a rectification chamber 3, and a cavity R, and a large-diameter upper cylinder part c in which a water sprinkling hole 4 is bored. A valve hole 5 is bored in the center of the large-diameter upper cylinder part c of the main body A, and a valve cylinder 6 having an inner diameter larger than the valve hole 5 is inserted into the valve hole 5.
is installed vertically, and the lower end of the valve cylinder 6 is extended to the upper surface of the water passage hole forming wall, and a stopper step 7a is provided inside the valve hole 5 and the valve cylinder 6.
By rotatably fitting a regulating valve 7 with an attached valve, forming a valve cylinder part 8 at the lower part of this regulating valve 7, and rotating the regulating valve 7 between this valve cylinder part 8 and the valve cylinder 6. A movement adjustment hole 9 and a stop adjustment hole 10 with variable hole areas are bored, and an annular groove 3' is provided in a position directly facing the stop adjustment hole 10 on the inner peripheral surface of the rectifying chamber 3. 9 and the stop adjustment hole 10 collide with the annular groove 3' facing directly and flow upstream. This relates to a water spray nozzle that is characterized in that it is installed in a submerged area between a rectification chamber 3 and a cavity R.

[Effect]

When the nozzle main body A is fitted into a riser pipe 1 buried in the road surface, for example, and groundwater is sent, the groundwater sent out from the riser pipe 1 passes through the water passage hole 2, the movement adjustment hole 9, and the stop adjustment hole 10, and then flows into the rectification chamber. It ejects toward the annular groove 3' formed on the opposing inner wall of No. 3,
The inclined surface formed on the lower side of the protruding flange 3'' allows the valve cylinder 6 to
The water rises toward the outer circumferential surface of the road, passes through the water sprinkling holes 4, and is sprayed onto the road surface.

The level of groundwater sprayed onto the road surface is adjusted by rotating the regulating valve 7 to adjust the overlapping hole area between the movement regulating hole 9 of the regulating valve 7 and the stop regulating hole 7 of the valve cylinder 6.

〔Example〕

The drawing shows a preferred embodiment of the present invention, which includes a base cylinder part a that fits into a riser pipe 1, a middle cylinder part b having a water passage hole 2, a rectification chamber 3, and a cavity R, and a water sprinkling hole 4. A valve hole 5 is bored in the center of the large diameter upper cylinder part c of the nozzle body A, and a valve cylinder 6 having an inner diameter larger than the valve hole 5 is formed in the center of the large diameter upper cylinder part c. is installed vertically, the lower end of the valve cylinder 6 is extended to the upper surface of the water passage hole forming wall, and the regulating valve 7 with a stopper step 7a is rotatably fitted into the valve hole 5 and the valve cylinder 6. A valve cylinder part 8 is formed in the lower part of this regulating valve 7, and a movement adjustment hole 9 and a stop adjustment hole whose hole area can be varied by rotating the adjustment valve 7 are formed between this valve cylinder part 8 and the valve cylinder 6. 10 is bored, and an annular groove 3' is provided in the inner peripheral surface of the rectifying chamber 3 at a position directly facing the stop adjustment hole 10, so that the groundwater spouted from the movement adjustment hole 9 and the stop adjustment hole 10 directly faces each other. A protruding flange portion 3'', which has an inclined surface formed on the lower side that rises toward the outer circumferential surface of the valve cylinder 6 when it collides with the annular groove 3' and moves upstream, extends into the valley between the rectifying chamber 3 and the cavity R. Set up

The drawing shows a case in which a nozzle disk 11 is screwed into the large-diameter upper cylindrical portion c, and a valve hole 5 is bored in the center of the nozzle disk 11.

In addition, a square hole 12 is bored in the upper part of this valve hole 5,
A case is shown in which a square wrench rod is pushed into this square hole 12 and the nozzle plate 11 is rotated to be attached or detached.

A case is shown in which a protection plate 13 is fitted into the square hole 12 to prevent dust, sand, etc. from clogging the upper surface of the regulating valve 7.

In addition, the regulating valve 7 in the drawing has a minus groove 1 on the top surface.
4 is provided and the slotted groove 14 is engaged with, for example, a flathead screwdriver rod to rotate, but a slotted slot may also be used, as long as the adjustment valve 7 can be rotated. good.

If the regulating valve 7 and the nozzle body A are made of stainless steel or brass, they can be used for a long time without rusting.

In the drawing, a recess 15 without a threaded groove is formed in the outer base of the nozzle board 11 and the inner base of the large-diameter upper cylinder c, and a packing ring 16 made of rubber, for example, is interposed in the recess 13 to form the nozzle board 11. This example shows a case in which the screws are securely fixed, but other methods may also be used.

In addition, a concave line 17 is provided on the upper outer surface of the regulating valve 7, and a packing ring 16 is similarly interposed in the concave line 17 to secure the fitting of the regulating valve 7 so that the regulating valve 7 does not wobble due to water flow pressure. Although this example shows a case where this is ensured, other methods may also be used.

In addition, two grooves 18 are provided at the lower part of the inner surface of the base cylinder part a with a slight gap between them, and a packing ring 16 is similarly interposed in the grooves 18 to form the nozzle body A.
Although this example shows a case in which the fixation of the material is ensured, other methods may be used.

The drawing shows that when groundwater ejected from the movement adjustment hole 9 and the stop adjustment hole 10 hits the inner wall of the rectification chamber 3 and is sent upward, the water is An annular projecting wall 1 that rotates the nozzle disk 11 in the direction of screwing in by the flow force.
9 is formed.

In addition, when the water nozzle is not used, such as in spring, summer, and autumn, the nozzle plate 11 can be removed and a cap plate of the same size as the nozzle plate 11 can be screwed onto the upper water sprinkling hole to prevent wear on the surface of the nozzle plate 11. The clogging in step 4 can be prevented.

In the figure, reference numeral 20 is a locking step, and 21 is a fixing recess.

[Effect of idea]

As mentioned above, the present invention includes a base cylinder part that fits into the riser pipe, a middle cylinder part having a water passage hole and a rectification chamber,
A valve hole is bored in the center of the large-diameter upper cylinder part of the nozzle body, which is made up of a large-diameter upper cylinder part in which a water sprinkling hole is bored, and a valve cylinder having an inner diameter larger than the valve hole is vertically provided in the valve hole, The lower end of this valve barrel is extended to the upper surface of the water passage hole forming wall, and a regulating valve with a stopper step is rotatably fitted into the valve hole and valve barrel, so the amount of water sprinkled can be increased or decreased by rotating the regulating valve. It can be easily adjusted by moving it.

In this case, the adjustment valve's removal prevention step is locked to the locking step at the boundary between the valve hole and the valve cylinder of the large-diameter upper cylinder, so the adjustment valve is securely inserted upward into the valve hole and valve cylinder. Since it is stored and fixed in a state that prevents it from coming out, and because it is not a screw-in type like conventional ones, the screws become ineffective due to rust and the adjustment valve cannot be fixed, and the entire adjustment valve comes out and the valve hole is damaged. There is no possibility of groundwater gushing out directly from the ground.

In addition, the groundwater spouted from the movement adjustment hole and the stop adjustment hole collides with the annular groove formed on the opposing inner wall of the rectification chamber, and flows along the slope below the protruding flange installed above the valve. Since it rises in a detour toward the outer peripheral surface of the cylinder and flows into the cavity, the flow rectification effect is good.
The groundwater gushing out from the sprinkling hole is sprayed at a uniform height, making it a highly practical watering nozzle.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention.
The figure is a perspective view, and FIG. 2 is a sectional view. A...Nozzle body, R...Cavity chamber, a...Base cylinder part, b...Middle cylinder part, c...Large diameter upper cylinder part, 1...Rising pipe, 2...Water hole, 3... ... Rectification chamber, 3'
...Annular groove, 3''...Protruding flange, 4...Water hole,
5...Valve hole, 6...Valve cylinder, 7...Adjusting valve, 7a...
...Preventing stepped portion, 8...Valve cylinder portion, 9...Movement adjustment hole,
10...stop adjustment hole.

Claims (1)

[Scope of utility model registration request] A nozzle consisting of a base cylinder part a that fits into a riser pipe 1, a middle cylinder part b having a water passage hole 2, a rectification chamber 3, and a cavity R, and a large-diameter upper cylinder part c in which a water sprinkling hole 4 is bored. A valve hole 5 is bored in the center of the large-diameter upper cylinder part c of the main body A, and a valve cylinder 6 having an inner diameter larger than the valve hole 5 is inserted into the valve hole 5.
is installed vertically, and the lower end of the valve cylinder 6 is extended to the upper surface of the water passage hole forming wall, and a stopper step 7a is provided inside the valve hole 5 and the valve cylinder 6.
By rotatably fitting a regulating valve 7 with an attached valve, forming a valve cylinder part 8 at the lower part of this regulating valve 7, and rotating the regulating valve 7 between this valve cylinder part 8 and the valve cylinder 6. A movement adjustment hole 9 and a stop adjustment hole 10 with variable hole areas are bored, and an annular groove 3' is provided in a position directly facing the stop adjustment hole 10 on the inner peripheral surface of the rectifying chamber 3. 9 and the stop adjustment hole 10 collide with the annular groove 3' facing directly and flow upstream. A water spray nozzle characterized in that it is installed in a part surrounding a rectification chamber 3 and a cavity R.