JPH0422852Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention securely fixes the nozzle body, has excellent rust resistance and abrasion resistance, and can be used for a long time. This invention relates to a practical snow removal nozzle that can adjust the amount of water sprinkled according to the amount of snowfall.

[Conventional technology]

The snow removal nozzles currently in use are entirely made by casting, and a nozzle disk is screwed into the large-diameter upper portion of the nozzle tube, and a valve hole is bored in the center of the nozzle disk. A valve cylinder with a valve rod inside is screwed into the valve hole, and by raising and lowering the valve rod, the hole area of a horizontal hole bored in the middle of the valve cylinder is varied to adjust the water flow hole.

[Problem that the invention attempts to solve]

If the entire snow removal nozzle is made of cast material, the top surface of the nozzle that comes in contact with snow removal water or snow melting water during the winter may rust, causing the water nozzle holes to become clogged, or the nozzle disk may become worn out, making it necessary to replace the nozzle disk. When attempting to do so, the threaded portion between the nozzle disk and the large-diameter upper portion of the nozzle tube becomes rusted, making it difficult to remove the nozzle disk and making replacement difficult.

In addition, vibrations caused by driving a car create a gap between the outer surface of the nozzle body and the inner surface of the concrete in the buried part.
There is also the drawback that the nozzle body rattles.

[Means for solving problems]

The present invention is intended to solve these drawbacks, and the structure of the present invention will be described in detail with reference to the accompanying drawings.

A cast nozzle tube a with a water passage hole 1 installed vertically in the center and a rectification chamber 2 larger in diameter than the water passage hole 1 at the top.
A screw tube 4 with a male screw 3 carved into its upper edge is provided protrudingly, and a stainless steel nozzle top cover b with a water nozzle hole 5 drilled therein is screwed onto the screw tube 4, and the outer circumferential surface of this nozzle top cover b is A step part 6 is formed in the middle with a slightly smaller diameter at the upper part, and the lower end is made long enough to reach the central water passage hole 1a bored in the partition wall 8 through the screw hole 7 provided in the center of the top part. A brass valve sleeve 10 with a male screw 9 carved therein is fitted and screwed, a ring packing 11 is provided at the lower end of the brass valve sleeve 10, and the lower end provided with the ring packing 11 is connected to the central water passage hole 1a. A valve rod 13 having a driver groove 12 on the top thereof is screwed into the brass valve cylinder 10 so as to be able to rise and fall freely, and a small diameter rod 14 is vertically installed at the bottom of this valve rod 13. A vertical groove 15 is formed on one side of the brass valve cylinder 10, and a valve hole 16 having an inner diameter into which the small diameter rod 14 is fitted is formed in the lower part of the brass valve cylinder 10. It is characterized in that a horizontal hole 18 is bored in a water passage hole chamber 17 having a diameter larger than that of the valve hole 16.

[Effect]

As shown in FIG. 2, the lower part of the water hole 1 is fitted into the riser pipe 19 of the water pipe 25 buried in the road surface,
Install the product so that the top surface of the nozzle top cover b is exposed to the road surface, and turn the valve rod 13 with a screwdriver so that the upper half of the vertical hole 15 of the small diameter rod 14 protrudes from the upper edge of the valve hole 16. When the rod 13 is set and groundwater is sent, the groundwater sent out from the riser pipe 19 passes through the water hole 1, the valve hole 16, the vertical groove 15, the water hole chamber 17,
It passes through the horizontal hole 18 and is introduced into the rectification chamber 2.
The water passes through the water nozzle hole 5 and is sprayed onto the road surface.
The amount of water sprinkled is adjusted by raising and lowering the valve rod 13.

As shown in FIG. 3, if the entire length of the vertical groove 15 of the small diameter rod 14 is positioned within the water passage chamber 17 above the valve hole 16, the valve mechanism will be released and the maximum amount of water will be fed. When the water spray nozzle hole 5 becomes clogged, this water pressure eliminates the clog.

Conversely, in order to prevent water from being sprayed, the valve rod 13 may be lowered to the lowest end to close the entire length of the vertical groove 15 of the small diameter rod 14.

〔Example〕

Although the brass valve barrel 10 in the drawings has four horizontal holes 18, the number is not limited to four.

In addition, a square hole 21 is bored above the upper screw hole 20, and a protection plate 22 is fitted into this square hole 21 to secure the valve rod 1.
3 shows the case where the top surface of the case is prevented from getting clogged with dirt, sand, etc.

The valve rod 13 is preferably made of brass like the brass valve cylinder 10.

In the figure, reference numeral 23 is a fixed protrusion, and 24 is a ring packing.

[Effect of idea]

Since the present invention is constructed as described above, it has the following features.

1 The nozzle top cover is made of stainless steel, so the top surface of the nozzle that is exposed to the road surface is not a cast surface like conventional models, but a stainless steel surface, so it will not rust even if it is constantly in contact with snow melting water or snow melting water, and is also durable. Therefore, unlike conventional products, there is no wear and tear caused by driving a car, so it can be used for a longer period of time.

2. The nozzle top cover is screwed onto the screw tube protruding from the upper edge of the nozzle cylinder, so the threaded part between the nozzle top cover and the screw tube will not rust, and can be removed by strongly rotating the nozzle top cover. This makes it easy to replace the nozzle top cover, clean the inside, and eliminate clogging.

3. A stepped part with a slightly smaller diameter at the upper part is provided in the middle of the outer circumferential surface of the nozzle top cover, so if the small diameter part is buried in a predetermined position on the road surface, the concrete around the small diameter part will press down on the nozzle body. At the same time, since the stepped portion serves as a stopper, the nozzle body is more securely fixed than conventional products, and does not wobble.

4. Since the valve cylinder is made of brass, it will not rust like conventional cast valve cylinders, so the valve cylinder can be used for a long time.

5 The brass valve barrel has a male screw carved into the neck and a ring seal at the bottom end, so the brass valve barrel is fixed in the water hole in two places, the neck and the bottom, making it more securely fixed. Therefore, since there is no water leakage from the neck or bottom of the brass valve barrel, all the groundwater introduced from the water flow nozzle hole is sprayed from the water sprinkling hole, resulting in an excellent snow-melting effect. It will be demonstrated.

6 A vertical groove with the end facing near the small diameter step is cut on one side of the small diameter rod installed vertically on the valve stem, so that the length of the vertical groove protruding from the upper edge of the valve hole makes it easy to pass through. The amount of water can be adjusted.

In addition, if the small diameter rod is removed from the valve hole, the amount of water passing through will be maximized, which is convenient when removing sand from the water nozzle hole or the rectifier chamber by sending a large amount of water, such as when cleaning the nozzle body before winter. be.

Conversely, when the small diameter rod is fully immersed into the valve hole, watering will be stopped.

As described above, the snow removing nozzle is more practical than conventional snow removing nozzles.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention.
The figure is an exploded perspective view, FIG. 2 is a sectional view, and FIGS. 3 and 4 are sectional views of main parts. a... Nozzle tube, b... Nozzle top cover, 1... Water passage hole, 1a... Central water passage hole, 2... Rectification chamber,
3, 9...male screw, 4...screw cylinder, 5...water nozzle hole, 6...step, 7...screw hole, 8...partition,
10... Brass valve tube, 11... Ring packing,
12...driver groove, 13...valve lever, 14...
Small diameter rod, 14a...Small diameter step, 15...Vertical groove, 1
6...Valve hole, 17...Water hole chamber, 18...Horizontal hole.

Claims (1)

[Scope of utility model registration request] A cast nozzle tube has a vertical water hole in the center and a rectifying chamber with a larger diameter than the water hole at the top. A stainless steel nozzle top cover with a water spray nozzle hole drilled in it is screwed onto the nozzle top cover, and a step is formed in the middle of the outer circumferential surface of this nozzle top cover with a slightly smaller diameter in the upper part, and the screw hole in the center of the top is screwed on. A brass valve cylinder with a male screw carved into the neck is fitted and screwed to a length whose lower end reaches the central water hole drilled in the partition wall, and a ring packing is provided at the lower end of the brass valve cylinder. The lower end provided with this ring packing is inserted into the central water passage hole, and a valve rod with a driver groove on the top is screwed into the brass valve cylinder so that it can be raised and lowered, and a small diameter rod is attached to the lower part of this valve rod. A vertical groove is cut on one side of this small-diameter rod with the end facing near the small-diameter step, and a valve hole with an inner diameter that exactly fits this small-diameter rod is inserted into a brass valve. A snow removal nozzle characterized in that a horizontal hole is provided in the lower part of the cylinder and has a diameter larger than the valve hole.