JPH0975785A - Ejection nozzle of sprinkler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eject water by diffusing a water current to be ejected vertically and to part snow. SOLUTION: A nozzle attachment 40 is confronted with the front of the ejection port 19 of a nozzle body 1, attached and provided. A tip ejection port 41 in the attachment 40 is longitudinally opened in a slender and practically rectangular shape. The open face of a rear inlet opening 42 opposed to the ejection port 19 of the nozzle body 1 is gradually widened from the open face of the tip ejection port 41. A flow-straightening water passage 43 is narrowed gradually toward the tip ejection port 41 from the rear inlet opening 42, a water current ejected from the port 19 and passed through the flow-straightening passage 43 is ejected as an ejected water current expanding vertically.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a spray nozzle device for a snow sprinkler for removing snow accumulated between railroad tracks.

[0002]

2. Description of the Related Art An injection nozzle device of a snow sprinkler for extinguishing snow accumulated between orbits of this kind is disclosed, for example, in Japanese Patent Publication No.
As described in Japanese Patent Publication No. 80064 and Japanese Utility Model Publication No. 4-20513, the water flow jetted from the jet nozzle of the nozzle body is applied to a reflecting plate provided in front of the jet nozzle so as to be able to advance and retreat. The reflecting plate is moved laterally against the spring by water pressure, and the horizontal flow straightening plate located in front of the reflecting plate straightens and scatters the water flow injected from the injection port into a plurality of water fluxes. The reflection plate is returned to the front of the injection port by the biasing force of the spring so that it is diffused and scattered, and the peripheral part of the range where the water flows injected from the sprinklers arranged in parallel are scattered from the adjacent sprinklers. The snow is evenly distributed over the entire area by overlapping the surrounding area.

[0003]

In the conventional jet nozzle device for the snow sprinkler, the water flow hitting the reflecting plate is diffused, whereas the water flow hitting the horizontal straightening plate is diffused by the reflecting plate. The amount of water scattered in the distance is larger than that in the above, and the range sprayed from each sprinkler becomes an elliptical shape, and during heavy snow, the snow accumulated between the orbits becomes sherbet-like residual snow on one side and short-circuits at the points and point parts. There was a problem that caught the snow and caused the point to fail.

The present invention has been made in view of the above problems, and a water stream jetted from an jet port is vertically diffused and jetted like a water curtain, and snow between the orbits is formed in a direction substantially perpendicular to the orbital direction. (EN) Provided is a sprinkler injection nozzle device capable of melting snow in a transverse direction of a track to divide the snowfall, short-circuiting a track, sandwiching snow at a point portion, and eliminating snow without the risk of point inoperative.

[0005]

According to a first aspect of the present invention, there is provided an injection nozzle device for a sprinkler, which is provided with a nozzle body having a nozzle injection port and a nozzle body which is mounted in front of the injection port of the nozzle body. And a nozzle attachment for injecting a jet water stream jetted from the jet stream as a jet water stream that spreads in a vertical direction, the nozzle attachment opening a tip jet port in a vertically elongated substantially rectangular shape, and an opening surface of the tip jet port. And a rectifying water passage that widens the opening surface of the rear end side inflow opening facing the nozzle injection port of the nozzle body and gradually narrows from the rear end side inflow opening toward the front end injection port. Is.

The water flow jetted from the jet port of the nozzle body is gradually narrowed from the widened rear end side inflow opening of the nozzle attachment attached to the front side of the nozzle body toward the tip jet port. The water is introduced into the flow straightening passage, and is jetted as a water stream spreading vertically from the jet port of the flow straightening passage. The water flow spreading in the vertical direction is sprayed linearly on the snow, and the snow is extinguished linearly.Therefore, a short circuit of the track due to the sherbet-like snow and an inoperability of the point due to the snow caught in the point part occur. Can be prevented.

According to a second aspect of the present invention, there is provided an injection nozzle device for a sprinkler according to the first aspect, wherein the rectifying water passage of the nozzle attachment is a rear end side inflow opening facing the injection port of the nozzle body. The height in the vertical direction is gradually increased from the portion toward the tip injection port.

When the water stream jetted from the jet port of the nozzle body passes through the straightening passage which is gradually narrowed from the widened rear end side inflow opening of the nozzle attachment toward the tip jet port, the straightening passage is formed. Since the vertical height was gradually increased from the rear end side inflow opening toward the tip injection port, the water flow spreading in the vertical direction was sprayed evenly between the upper and lower sides, and linear snow disappearing against the snow accumulated between the orbits. Can be even.

The injection nozzle device for a sprinkler according to a third aspect is the injection nozzle device for a sprinkler according to the first or second aspect, in which the nozzle attachment is attached to the front of the injection port of the nozzle body so that the position in the front-back direction can be adjusted. It is a thing.

By adjusting the mounting position of the nozzle attachment in the front-back direction, the gap between the nozzle injection port of the nozzle body and the rear end side inflow opening of the nozzle attachment is adjusted, The spraying angle can be adjusted, and if the nozzle attachment mounting position is on the front side and the gap between the nozzle injection port of the nozzle body and the rear end side inflow opening of the nozzle attachment is expanded, the spraying range will be shortened and the nozzle attachment will be mounted. When the position is set to the rear side and the distance between the nozzle injection port of the nozzle body and the rear end side inflow opening of the nozzle attachment is narrowed, the sprinkling range becomes longer, and the sprinkling range on the track can be adjusted according to the installation situation of the nozzle body. .

An injection nozzle device for a sprinkler according to a fourth aspect of the present invention is the injection nozzle device for a sprinkler according to any one of the first to third aspects, in which the arm is projected from the nozzle body toward the front upper side of the nozzle injection port. A horizontal rectifying plate that rectifies the water flow jetted from the nozzle injection port into a plurality of water fluxes is attached to the tip of this arm, and the mounting plate portion provided on the upper part of the nozzle attachment can be bent to this horizontal rectifying plate. It is fixed by a screw having a hexagonal head through a washer, and the end of the washer is bent and attached along the peripheral surface of the head of the screw.

By mounting the nozzle attachment on the horizontal straightening plate, the nozzle attachment can be easily mounted on the nozzle body without projecting another arm or the like. When the nozzle attachment is attached to the horizontal straightening vane according to snow conditions or snow quality, bending the end of the washer along the peripheral surface of the screw head prevents the screw from rotating in the loosening direction. The nozzle attachment is securely fixed to the horizontal straightening vane, and the nozzle attachment can be prevented from falling off the horizontal straightening vane.

When the nozzle attachment is not used, the water flow jetted from the jet port of the nozzle body is diffused and scattered downward by the horizontal flow straightening plate.

A jet nozzle device for a sprinkler according to a fifth aspect of the present invention is the jet nozzle device for a sprinkler according to the fourth aspect, wherein the nozzle body is movable back and forth between the jet port of the nozzle body and the horizontal straightening plate. An arm provided with a reflection plate, which is held between the injection port of the nozzle body and the horizontal straightening plate by the urging force of a spring, is rotatably attached.

Then, the water stream jetted from the jet port of the nozzle body hits the reflecting plate and spreads diffusely in one side, and at the same time, the reflecting plate resists the spring by the hitting water pressure to the other side. And is retracted from between the nozzle injection port of the nozzle body and the rear end side inflow opening of the nozzle attachment, and is introduced from the injection port of the nozzle body to the rectification passage from the rear end side inflow opening of the nozzle attachment and rectified. The water flow jetted from the tip jet port of the passage is spread vertically and scattered. Then, since the reflection plate stops receiving water pressure, it is returned by the urging force of the spring and is positioned between the nozzle injection port of the nozzle body and the rear end side inflow opening of the nozzle attachment,
Once again, the water flow injected from the nozzle injection port of the nozzle body spreads to one side and is diffused and scattered. By repeating this operation, the snow between the tracks is completely melted and linearly divided and erased.

[0016]

DETAILED DESCRIPTION OF THE INVENTION The configuration of an embodiment of the present invention will be described with reference to FIG.

First, the nozzle body will be described.

The nozzle body 1 has a hollow support shaft 2 which is vertically supported by connecting a connecting portion 2a opened at the lower end to a water supply pipe. The support shaft 2 is opened at the lower end surface and closed at the upper end. A water passage 3 is formed, an annular flange 4 is formed in the intermediate portion of the outer periphery of the support shaft 2, and is located above the flange 4 to be symmetrical.
Water guiding holes 5 communicating with the water passage 3 are opened at 180 ° positions, and annular grooves 6 and 7 are formed above and below the water guiding hole 5, respectively, and the annular grooves 6 and 7 communicate with the water passage 3. The small-diameter water guide holes 8 are opened respectively.

Further, the nozzle body 1 has a nozzle body 10 which is fitted and fixed to the support shaft 2, and the nozzle body 10 has a fitting hole 11 which is fitted to the support shaft 2 on the lower surface. Is formed. A lower portion of the fitting hole 11 is formed in a nut fitting portion 12 formed to have a diameter larger than that of the flange portion 4 of the support shaft 2, and a step portion 13 forming the nut fitting portion 12 of the fitting hole 11 is formed. The collar part 4
Is engaged with the washer 4a via the washer 4a.
Then, the nut 14 fitted from below the support shaft 2 is tightened and screwed into the thread groove 15 formed on the inner periphery of the nut fitting portion 12, whereby the step portion 13 of the fitting hole 11 of the nozzle body 10 is supported. Axis 2
The nozzle body 10 is fixed to the spindle 2 by pressure contact with the upper surface side of the collar portion 4 via the washer 4a. A plurality of annular washers 15 are provided between the lower surface of the collar 4 and the tip of the nut 14.
It is kept watertight through a.

Further, the nozzle body 10 has a symmetrical 180
Each of the water pipe sections 16 is inclined upward in the ° direction,
Each of the water guiding pipe portions 16 is communicated with the fitting hole 11 of the nozzle body 10 so that the water discharged from the water guiding hole 5 is introduced. Further, the upper and lower small diameter water guide holes 8 of the support shaft 2 are also communicated with the respective water guide pipe portions 16 by guide grooves (not shown) of the support shaft 2.

Further, nozzle mouths 17 are attached to the tips of both of the water conduits 16, and the respective nozzle mouths 17 are attached.
The nozzle mouth 17
Horizontal rectifying plates 20 are provided so as to face the tips of the nozzle injection ports 19. A straightening groove 21 is formed on the lower surface of the horizontal straightening plate 20 in the front-rear direction, in which the water stream jetted from the nozzle jet port 19 of the nozzle mouth 17 hits and diffuses downward into a plurality of water fluxes. Has been done.

A support shaft 22 is provided at the center of the nozzle body 10, and a cylindrical base 26 of a reflection plate 25 is rotatably fitted to the support shaft 22. The base portion 26 is retained and held by a spring retaining ring 28 fixed to the upper end of the support shaft portion 22 by a split pin 27, and the tubular base portion 26 is formed with an annular concave portion 29 opening to the upper surface. Then, one end of the spring 30 wound around the annular recess 29 is locked to the cylindrical base portion 26 and the other end is locked to the spring stop ring 28, and the cylindrical base portion 26 is rotated in one direction by the spring 30. Is urged to. The split pin 27
The spring stop ring 28
By adjusting the elastic force of 30, the rotation speed of the reflection plate 25 can be adjusted.

Further, rocking arms 31 are symmetrically projected on the cylindrical base portion 26 of the reflecting plate 25 at positions of 180 °, and the nozzle mouths 17 are provided at the tips of the rocking arms 31.
The reflecting plates 25 that move back and forth are provided between the nozzle injection port 19 and the horizontal flow straightening plate 20. The swinging arms 31 are restricted in the range of rotation by the springs 30 by the stop projections 32 provided on the water conduit 16 of the nozzle body 10, and the reflection plate 25 is always the nozzle of the nozzle body 17. It is designed to be held between the injection port 19 and the horizontal flow straightening plate 20.

Further, the reflecting plate 25 is the nozzle mouth 17
Of the water jet reflection path 34 communicating with the introduction port 33 is curved in an arc shape toward one side, and the water flow reflection path 34 has one side. A diffusion injection hole 35 that is open toward the side is formed.

Next, the nozzle attachment 40 will be described with reference to FIGS.

In this nozzle attachment 40, the tip injection port 41 is opened in a vertically elongated, substantially rectangular shape, and the opening surface of the rear end side inflow opening 42 is widened from the opening surface of the tip injection port 41. From the rear end side inflow opening 42 to the front end injection port 41
A rectifying water passage 43 is formed which is gradually narrowed toward. Further, a guide plate 44 is provided on the upper part of the flow straightening water passage 43 so that the height of the flow straightening water passage 43 in the vertical direction gradually increases from the rear end side inflow opening 42 toward the tip injection port 41. Has been.

A mounting frame 45 having a substantially rectangular shape fitted to the horizontal straightening plate 20 is mounted on the upper part of the nozzle attachment 40, and a mounting screw hole is formed on an upper surface of one side of the mounting frame 45. After moving the mounting position of the nozzle attachment 40 in the front-rear direction to adjust the water spray angle, the tip of a screw 48 having a hexagonal head 47 screwed into the mounting screw hole of the mounting frame 45 is attached to the horizontal straightening. The upper surface of the plate 20 is pressed and fixed. Further, a bendable washer 49 is interposed between the hexagonal head 47 and the upper surface of the horizontal flow straightening plate 20, and
After tightening 48, insert the end 50 of the washer 49 with this screw.
The head 48 is bent along the peripheral surface of the head 47 and attached to prevent the screw 48 from rotating in the loosening direction.

With the nozzle attachment 40 attached to the horizontal straightening plate 20, the opening surface of the rear end side inflow opening portion 42 faces the nozzle injection port 19 of the nozzle opening body 17 attached to the nozzle body 10. The jet water flow jetted from the nozzle jet port 19 is jetted from the tip jet port 41 of the nozzle attachment 40 as a jet water flow spreading in the vertical direction.

The horizontal flow straightening plate 20 provided at the tip of the arm 18 projecting integrally with the nozzle mouth 17 of the nozzle body 1 can adjust the water spraying range by changing the inclination angle. The nozzle body 10 for long distances and the nozzle body 17 for short distances in which the mounting angles are changed are selectively selected.
Attach to the tip of the water conduit section 16. The spray distance from the long-distance nozzle mouth body is about 8 m, the short-distance nozzle mouth body 17 is about 4 m, and the nozzle attachment 40 is a horizontal straightening provided on the short-distance nozzle mouth body 17. Board 20
Attach to

Next, the operation of this embodiment will be described.

The water supplied to the spindle 2 is introduced from the water passage 3 into the water guiding hole 5 and from the small diameter water guiding hole 8 into the fitting hole 11 of the nozzle body 10.
And flow into the water conduits 16 that are provided symmetrically on the nozzle body 10 and project obliquely upward in the 180 ° direction, and the water flow that flows into each water conduit 16 is communicated with the inner circumference of the nozzle body 10. And the water flow ejected from the nozzle injection port 19 of the nozzle port 17 attached to the tips of the two water guiding pipes 16, and the water flow ejected from this nozzle injection port 19 is reflected at a position facing the nozzle injection port 19 of the nozzle port 17. It is introduced into the inlet 33 of the plate 25.

The water flow that has flowed into the inlet 33 of the reflection plate 25 flows along a water flow reflection path 34 that is curved in an arc shape toward one side and opens toward one side of the water flow reflection path 34. Diffusion injection is performed from the diffusion injection hole 35 toward one side. Then, at this time, the reflection plate 25 is rotated to the other side around the cylindrical base portion 26 against the urging force of the spring 30 by the water pressure applied to the water flow reflection path 34, and the reflection plate 25 ejects the nozzle of the nozzle mouth 17 It is retracted from between the opening 19 and the horizontal straightening plate 20.

In this state, the nozzle injection port of the nozzle mouth 17
The water flow injected from 19 hits the horizontal straightening vane 20 and
The water flow hitting 20 is diffused and scattered by the flow straightening groove 21 into a plurality of downward water flow fluxes.

When the reflecting plate 25 stops receiving the water pressure of the water stream jetted from the nozzle jet port 19 of the nozzle mouthpiece 17,
The urging force of the spring 30 causes the nozzle to return to and rotate between the nozzle injection port 19 of the nozzle mouth 17 and the horizontal flow straightening plate 20, and is positioned between the nozzle injection port 19 of the nozzle mouth 17 and the horizontal flow straightening plate 20. At this time, the swing arm 31 to which the reflection plate 25 is attached is stopped by hitting the stop projection 32 provided on the water conduit 16 of the nozzle body 10, and the reflection plate 25 is horizontal with the nozzle injection port 19 of the nozzle mouth body 17. It is held between the rectifying plate 20. In this state again the nozzle mouth
The water flow injected from the nozzle injection port 19 of 17 is diffused and scattered to one side by the reflection plate 25, and the water flow injected from the nozzle injection port 19 of the nozzle mouth 17 alternately hits the reflection plate 25 and the horizontal straightening plate 20,
The water flow hitting the reflection plate 25 is scattered relatively farther than the water flow hitting the horizontal flow straightening plate 20.

When the snowfall between the tracks becomes sherbet-like during heavy snowfall, or when there is a risk of becoming sherbet-like, the mounting frame 45 of the nozzle attachment 40 is fitted to the horizontal straightening plate 20, and the nozzle attachment 40 After adjusting the water spray angle by moving the mounting position forward and backward, tighten the screw 48 screwed into the screw hole 46 of this mounting frame 45, and press the tip of the screw 48 against the upper surface of the horizontal straightening plate 20 to fix it. , The end 50 of the washer 49 interposed between the hexagonal head 47 and the upper surface of the horizontal straightening plate 20 is attached to the head 47 of the screw 48.
The screw 48 is bent along the peripheral surface and attached to prevent loosening and rotation of the screw 48.

In addition, the sprinkling range is shortened by expanding the distance between the nozzle injection port 19 of the nozzle mouth 17 and the rear end side inflow opening 42 of the nozzle attachment 17 with the mounting position of the nozzle attachment 40 on the front side. If the distance between the nozzle injection port 19 of the nozzle mouth 17 and the rear end side inflow opening 42 of the nozzle attachment 40 is narrowed with the attachment position of the attachment 40 on the rear side, the sprinkling range will become longer, depending on the sprinkler installation situation. Adjust the spray range for the orbit.

This nozzle attachment 40 is a horizontal straightening plate
In the state of being attached to the nozzle 20, the opening surface of the rear end side inflow opening 42 is the nozzle injection port of the nozzle mouth 17 attached to the nozzle body 10.
Face 19 Then, the jet water flow jetted from the nozzle jet port 19 is introduced from the widened rear end side inflow opening portion 42 of the nozzle attachment 40 to the straightened water passage 43 which is gradually narrowed toward the tip jet port 41, and the straightened water Tip injection port 41 of passage 43
Is sprayed as a water stream that spreads in the vertical direction.

Further, the water flow jetted from the nozzle jet port 19 of the nozzle port body 17 is a rectified water which is gradually narrowed from the widened rear end side inlet opening 42 of the nozzle attachment 40 toward the tip jet port 41. When passing through the passage 43, the rectified water passage 43 gradually increases in height in the vertical direction from the rear end side inflow opening 42 toward the front end injection port 41, so that the water flow spreading in the vertical direction is sprayed evenly between the upper and lower sides. To be done.

In this way, the water stream that has spread in the vertical direction is jetted from the tip jet port 41 of the straightening water passage 43 of the nozzle attachment 40, and the water stream that has spread in the vertical direction is sprayed linearly on the snow cover. , To remove snow in a linear fashion,
It is possible to prevent the track from being short-circuited due to sherbet-like snow and the point from being inoperable due to the snow caught in the point portion.

[0040]

According to the first aspect of the present invention, the water flow jetted from the jet port of the nozzle body is forwarded from the widened rear end side inflow opening of the nozzle attachment mounted on the front side of the nozzle body. The water is introduced into the straightening passage that is gradually narrowed toward the jet port, and is jetted as a water stream that spreads vertically from the jet port of the straightening passage. Since the snow disappears linearly, it is possible to prevent a short circuit of the track due to the sherbet-like snow and the inoperability of the point due to the snow caught in the point portion.

According to the second aspect of the present invention, the flow of water jetted from the jet port of the nozzle body is gradually narrowed from the widened rear end side inlet opening of the nozzle attachment toward the tip jet port. When passing through the passage, the straightening passage gradually increased in height in the vertical direction from the rear end side inflow opening toward the tip injection port. Linear snow removal can be made even with respect to snow cover.

According to the third aspect of the invention, since the mounting position of the nozzle attachment can be adjusted in the front-back direction, the distance between the nozzle injection port of the nozzle body and the rear end side inflow opening of the nozzle attachment is adjusted. The angle of water sprayed from the nozzle of the nozzle attachment can be adjusted, and the spraying range on the track can be adjusted according to the installation situation of the sprinkler.

According to the fourth aspect of the present invention, the nozzle attachment is attached to the horizontal flow straightening plate that straightens the water flow jetted from the jet nozzle, so that the nozzle attachment can be easily attached to the nozzle body without projecting another arm or the like. be able to. When the nozzle attachment is attached to the horizontal straightening vane according to snow conditions or snow quality, bending the end of the washer along the peripheral surface of the screw head prevents the screw from rotating in the loosening direction. The nozzle attachment is securely fixed to the horizontal straightening vane, and the nozzle attachment can be prevented from falling off the horizontal straightening vane.

According to the fifth aspect of the invention, the water flow jetted from the jet port of the nozzle body alternately hits the reflection plate and the nozzle attachment, and this operation is repeated to completely cover the snow accumulated between the tracks. Along with melting snow, it can be divided and extinguished linearly.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a sprinkler injection nozzle device according to an embodiment of the present invention.

FIG. 2 is a front view of an attachment of the above-mentioned injection nozzle device.

FIG. 3 is a rear view of the attachment of the above jet nozzle device.

[Explanation of symbols]

 1 Nozzle body 19 Nozzle jet 20 Horizontal straightening plate 25 Reflector 31 Arm 40 Nozzle attachment 41 Tip jet 42 Rear end side inflow opening 43 Straightening water passage 47 Hexagonal head 48 Screw 49 Washer

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshiro Tsuchida 645, Nigata, Nakanoshima-cho, Kambara-gun, Niigata Prefecture 22 (72) Inventor Manji Kikumi 3-3-1 Shiigagusa, Suginami-ku, Tokyo (72) ) Inventor Atsushi Higo No. 304, Bldg. No. 54-3, 1-2-3 Fujimi-cho, Higashimurayama, Tokyo

Claims (5)

[Claims] 1. A nozzle body having a nozzle jet port, and a nozzle attachment which is mounted facing the front of the jet port of the nozzle body and jets a jet stream jetted from the nozzle jet port as a jet stream spreading vertically. And the nozzle attachment has a tip injection port opened in a vertically elongated elongated rectangular shape, and a rear end side inflow opening portion facing the nozzle injection port of the nozzle body from an opening surface of the tip injection port. An injection nozzle device for a sprinkler, which has a rectifying water passage whose opening surface is widened and whose width is gradually reduced from the rear end side inflow opening toward the front end injection port. 2. The rectifying water passage of the nozzle attachment is
2. The injection nozzle device for a sprinkler according to claim 1, wherein the height in the vertical direction is gradually increased from the rear end side inflow opening facing the injection port of the nozzle body toward the front end injection port. 3. The injection nozzle device for a sprinkler according to claim 1, wherein the nozzle attachment is attached to the front of the injection port of the nozzle body so that the position in the front-rear direction can be adjusted. 4. A nozzle body is provided with an arm protruding toward the front upper side of the nozzle injection port, and a horizontal straightening plate for rectifying the water flow injected from the nozzle injection port into a plurality of water fluxes is attached to the tip of this arm. , The mounting plate provided on the upper part of the nozzle attachment is fixed to this horizontal straightening plate with a screw having a hexagonal head through a bendable washer, and the end of the washer is fixed to the head of the screw. The sprinkler injection nozzle device according to any one of claims 1 to 3, wherein the sprinkler nozzle is bent and attached along the peripheral surface. 5. A reflector plate for a nozzle body, which is movable between an injection port of the nozzle body and a horizontal flow straightening plate and is held between the injection port of the nozzle body and the horizontal flow straightening plate by a biasing force of a spring. An injection nozzle device for a sprinkler according to claim 4, wherein an arm provided with is rotatably attached.