JPH0422847Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a water spray nozzle used to melt snow by sprinkling water on a road surface.

(Problems to be solved by conventional techniques and ideas) Snow melting on road surfaces by sprinkling water has been widely practiced in the past, and in addition to burying water pipes under the road surface,
It is constructed by protruding upright pipes at appropriate intervals, and connecting the upright pipes with water spray nozzles whose only surfaces are exposed above the ground.

There are various types of water spray nozzles, but the basic structure is that a valve mounting hole is drilled in the center of the upper part of a hollow water chamber, a water sprinkling port is formed around the upper part, and a water pipe is connected to the lower part. It consists of a main body with a hole and a flow rate regulating valve inserted through the valve mounting hole and interposed between the water quality and the water pipe communication hole. Further, the above-mentioned main body may be formed of a lower main body and a lid body.

These water spray nozzles are generally made of cast metal, stainless steel, synthetic resin, etc., and each material has its advantages and disadvantages. In other words, cast iron has the advantage of being cheap and durable, but it rusts easily, so the water spout is likely to get clogged. Stainless steel doesn't rust easily, but the processing is very complicated.
Furthermore, synthetic resin is lightweight and does not rust, but on the other hand, the surface is subject to significant wear. Therefore, a system in which a stainless steel cap body is mounted on a cast body has been proposed in the past (see Utility Model Application Publication No. 60-39351), but this proposal attempts to provide a water spray nozzle with a different combination. It is something.

(Means for solving the problem) The water nozzle of the present invention has a water chamber with an open upper surface at the top, a main body in which a water pipe communication hole is drilled from the water chamber toward the lower end surface, and a valve mounting hole in the center. a lid body which forms a water sprinkling port around the valve mounting hole and closes the upper surface of the water chamber of the main body; and a lid body which is inserted through the valve mounting hole and interposed between the water chamber and the water pipe communication hole. In a water spray nozzle for snow melting consisting of a regulating valve, the main body and lid are made of hard synthetic resin, and the surface of the lid,
It is characterized in that the outer periphery of the side and bottom surfaces and the upper edge of the water chamber of the main body are covered with a stainless steel plate.

The entire nozzle is extremely lightweight, and the exposed portion of the nozzle is covered with stainless steel, which prevents wear and tear on the exposed portion due to traveling vehicles.

(Example) Next, an example of the present invention will be described based on the drawings.

FIG. 1 is a partially cutaway perspective view of each member, FIG. 2 is a sectional view thereof, and FIGS. 3 and 4 are assembled sectional views.

The water nozzle of the present invention is composed of a main body 1, a lid 2, and a valve stem 3. The upper edge of the main body 1 and the surface, side, and bottom outer circumference of the lid 2 are made of stainless steel plates A and B, and the rest is made of synthetic steel. It is made of resin, and the stainless steel plates A and B are formed in advance into a predetermined shape, and the stainless steel plates A and B are housed in a mold and resin molded to integrate them. To explain the structure of the main body 1 and the lid 2 formed in this way, the main body 1 has a valve hole 5 in the center of the bottom of the water chamber 4 which is open at the top and has a step on the peripheral wall. A water passage hole 6 with a smaller diameter and a communication hole 7 sized to allow a riser pipe C, which will be described later, to be inserted closely.
are sequentially provided, and a lateral groove 8 having an appropriate length and depth is formed with the peripheral wall of the valve hole 5 as the base end. The lid body 2 is placed on the stepped part of the water chamber 4 to seal the upper part of the water chamber 4, and has a screw hole (valve mounting hole) 9 in the center and a water sprinkling port 10 around it. It is fixed to the main body 1. The fixing means is formed by drilling a bolt hole 11 in the lid 2, inserting a fixing bolt 12 into the bolt hole 11, and screwing it into a screw hole 9 provided in the bottom of the water chamber 4, thereby attaching the lid 2 and the main body. Integrate 1 with 1. The valve stem 3 has a valve body portion a that tightly fits into the valve hole 5.
and a screw body part b that is screwed into the screw hole 9, and a valve body part a.
The screw body part b is screwed into the screw hole 9 with the valve body part a facing downward, and the valve body part a is tightly fitted into the valve hole 5. 13 in the figure
is Patsukin, and 14 is a blind lid.

Then, the riser pipe C from the underground water pipe D is inserted into the communication hole 7 to connect the two, and the pipe is buried so that only the stainless steel plates A and B on the upper surface of the main body 1 and the lid body 2 are exposed to the ground surface. Snowmelt water from underground water pipe D flows through riser pipe C → communication hole 7 → water passage hole 6.
→ Valve hole 5 → Horizontal groove 8 → Water chamber 4 → Water spout 10 and water is sprinkled on the ground surface to melt snow on the road surface.

It should be noted that the nozzle of the present invention may be used as long as the surface exposed to the ground surface is made of a stainless steel plate, and the flow rate regulating valve mechanism is not particularly limited to the above-mentioned embodiments, and any mechanism may be adopted.

(Effect of the invention) As described above, in this invention, only the parts of the lid and main body that form the water nozzle that are exposed to the ground are made of stainless steel, and most of the other parts are made of synthetic resin. Thus, it is possible to obtain a water spray nozzle that has sufficient durability against wear caused by running vehicles.

[Brief explanation of the drawing]

The figures show an example of the present invention, in which Fig. 1 is a perspective view of each member, Fig. 2 is a cross-sectional view of the same, and Figs. 3 and 4.
The figure is an assembled sectional view. 1 is the main body, 2 is the lid, 3 is the valve stem, 4 is the water chamber, 5
is a valve hole, 6 is a water hole, 7 is a communication hole, 8 is a horizontal groove, 9
10 is a screw hole, 10 is a water spout, 11 is a bolt hole, 12 is a fixing bolt, 13 is a gasket, and 14 is a blank lid.

Claims (1)

[Scope of utility model registration request] The main body has a water chamber with an open top at the top, a water pipe communication hole is drilled from the water chamber toward the bottom end surface, a valve mounting hole is drilled in the center, and a water sprinkling port is formed around the valve mounting hole. In the snow melting water nozzle, the main body and the cover are comprised of a lid that closes the upper surface of the water chamber of the main body, and a flow rate adjustment valve that is inserted through the valve mounting hole and interposed between the water chamber and the water pipe communication hole. A water spray nozzle for melting snow, characterized in that the body is made of hard synthetic resin, and the outer periphery of the top, side and bottom surfaces of the lid and the upper edge of the water chamber of the main body are covered with a stainless steel plate.