JPS62213861A - Water spraying head - Google Patents

Abstract

PURPOSE:To efficiently perform spraying of water by a reduced number of heads, by arranging a plate body of which the side view is a trapezoid under the discharge port of a head main body and allowing a liquid discharged to collide with the plate body through a conical body. CONSTITUTION:Pressurized water for fire extinguishment and cooling discharged from a discharge port 11 collides with a conical body 30 and released from the surface thereof to impinge against a deflector 20. A part of the water impinging against said deflector 20 is sprayed to an oblique downward direction along an inclined plate 24 and a tongue piece 23 but, at this time, not only the width of sprayed water is regulated by the inclined plate 24 but also the length thereof is regulated by the tongue piece 23 and a rectangular remote water spraying area is formed as a whole. The other water falls through slits 22 or impinges against the wall surfaces of the slits to be reflected and is dispersed to the lower part of the deflector 20 while the direction thereof is changed to form a vicinal water spraying area.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a water sprinkling head used for fire extinguishing, cooling, etc., and relates to a water sprinkling head that has a rectangular water sprinkling pattern in 1%.

BACKGROUND OF THE INVENTION Conventionally, as a water spray head of this type, there is a type in which a deflector having radial slits is provided below a water outlet of a head body, and the pressurized water discharged from the water outlet collides with the deflector and is dispersed.

Problems to be Solved by the Invention In conventional water sprinkling heads, since the deflector is disc-shaped, the water sprinkling shape (referred to as a water sprinkling pattern) on the water sprinkling surface is circular or elliptical.

Therefore, the water sprinkling surface lK is shown by the dashed-dotted line in FIG.

If you try to sprinkle water with a plurality of watering heads 2, a double watering section 3 will occur due to the two watering heads 2, and the watering surface 1 will be
The water sprinkling part 4 also occurs in areas other than the above, resulting in a lot of waste. Therefore, in order to completely spray water over the entire surface, a large number of water spray heads are required.

Further, since the area directly below the deflector is only sprayed in a streaky manner by water falling vertically from the slit, the water spray surface directly below the deflector is not uniformly sprayed with water.

In view of the above circumstances, the present invention aims to provide a watering head that can efficiently spray water on a watering surface with a small number of heads.

Another purpose of the present invention is to uniformly sprinkle water on the water spraying surface.Means for solving the problem This invention is to bend a plate so that it has a trapezoidal shape when viewed from the side below the water outlet of the head body. and a pair of downwardly inclined plates that regulate the width of the spraying of extinguishing and cooling liquid, and a pair of slits are provided on both ends of the upper plate in the longitudinal direction to form a pair of tongue pieces. A deflector is provided in which the pair of tongues are inclined downward to regulate the length of water spray, and a fire extinguishing/cooling device is provided at the center of the upper surface of the upper plate portion of the deflector for extinguishing and cooling water discharged from the water outlet. This water spray head is characterized in that it is provided with a cone body that separates liquid and causes it to collide with a deflector.

Pressure water discharged from the working water outlet collides with the cone body, is separated from its surface, and then hits the deflector. A portion of the water that hits this deflector scatters diagonally downward along the inclined plate and the tongue piece, but at this time, the inclined plate regulates the width of the water spray, and the tongue piece regulates the length of the water spray. As a result, a rectangular remote watering area is formed as a whole.

On the other hand, other water falls through the slit or is reflected by hitting the slit wall surface, and its spraying direction is changed and dispersed below the deflector to form a nearby spraying area.

Embodiment An embodiment of the present invention will be described with reference to the accompanying drawings, and the same reference numerals have the same names and functions.A U-shaped frame 12 is suspended from the water spray head main body 10. A deflector 20 facing the water outlet 11 is provided on the upper surface of the water outlet.

This deflector 20 includes: Fi, a rectangular upper plate portion 21, and an inclined plate 24 that regulates the width of water spraying of fire extinguishing/cooling liquid.
A slit 22 for sprinkling water in the vicinity of the water sprinkling area immediately below the deflector 20, and a tongue piece 23 for regulating the length of water sprinkling are formed.

The inclined plate 24 is provided continuously on both long sides of the upper plate part 21, and is inclined downward at an angle greater than that of the tongue piece 23.

A pair of slits 22 are provided on each of the short sides of the upper plate part 21, and each tongue piece 23 is formed by a pair of slits 22 in the upper plate part 21, and is slightly inclined downward.

A cone body 30 is provided in the center of the deflector 20 to peel off the extinguishing/cooling liquid discharged from the water outlet 11 and cause it to collide with the deflector 20.

The cone body 30 is composed of an upper truncated cone-shaped portion 31 and a lower cylindrical portion 32, but this shape may be a single cylindrical shape.

In the figure, F is a plate and 40 is a spacer.

Arrows indicate the direction of watering.

The operation of this embodiment will be explained. When the pressurized water discharged from the water outlet 11 collides with the cone body 30 and is reflected, it is separated from the surface of the cylindrical part 32 of the cone body 30, and the pressure water and the cylindrical surface are separated. A cavity E is created in between.

Then, the separated pressure water hits the deflector 20, a part of which flows along the inclined plate 241C, and scatters far away while the width of the sprayed water is regulated by the inclined plate 24.
3, and is scattered far away while the length of watering is regulated by the tongue piece 23, and water is uniformly sprayed in a rectangular far watering area λ.

10,000, the other pressure water that separated falls into the slit 22,
Some of it falls along the slit 22 and is sprayed in the form of auxiliary strips in the nearby watering area BK, but the rest falls along the inner wall surface 22 of the slit.
alC* is reflected, the spray direction is changed and the water is dispersed, and water is uniformly sprayed in the vicinity water spray area BK directly under the deflector 20.

In this way, the entire rectangular water sprinkling area C is uniformly watered.

Effects of the Invention Since the present invention is constructed as described above, the pressure water discharged from the water outlet collides with the cone body.

It peels off from the surface and hits the deflector.

A part of the pressure water that hits the deflector forms a rectangular distant water spray area, with the width of the water sprayed by the inclined plate regulated and the length of water sprayed by the tongue piece regulated, and the other pressure water is regulated by the slit. The water collides with the inner wall surface of the deflector and is reflected, the direction of the water spray is changed and the water is uniformly distributed in the vicinity of the water spray area below the deflector.

In this way, a uniform rectangular water sprinkling area can be formed, so even if multiple water sprinkling heads are arranged at intervals, areas other than the t/Cx double sprinkling area or the water sprinkling surface as in the conventional example No water sprinkling occurs. Therefore, water can be sprayed efficiently and uniformly on the water sprinkling surface with a smaller number of water spray heads than conventional methods.

[Brief explanation of drawings]

Figures 1 to 4 are diagrams showing embodiments of the present invention.
The figure is a front view, Fig. 2 is a side view, Fig. 3 is a plan view of the deflector, Fig. 4 is a side view, Figs. The figure shows a conventional water sprinkling state. 10...Head body 11...Water outlet 20...Deflector 21...Top plate portion 22...Slit 23...・Tongue piece 24... Inclined plate 30... Cone body F... Plate body

Claims (1)

[Claims] 1. Below the water outlet of the head body, there is a pair of downward slopes that regulate the width of the upper plate and the spraying of the fire extinguishing cooling liquid by bending the plate so that it has a trapezoidal shape when viewed from the side. A pair of slits are provided at each end of the upper plate in the longitudinal direction to form a pair of tongues, and the pair of tongues are inserted downward in order to regulate the length of watering. A deflector is provided at an angle, and a cone body is provided at the center of the upper surface of the upper plate portion of the deflector to separate the extinguishing and cooling liquid discharged from the water outlet and cause it to collide with the deflector. Water sprinkler head. 2. Claim 1, wherein the cone body has an upper part shaped like a truncated cone and a lower part shaped like a cone.
Watering head as described in section.