JPS5843960Y2 - spray nozzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of an impinging flow type spray nozzle that can diffuse and disperse injected spray in an elongated circular shape.

For example, as a conventional spray nozzle of this type,
No. 916, the liquid to be pumped into the nozzle is guided from the hemispherical or semi-elongated spherical liquid chamber of the nozzle hole plate to an arcuate liquid guide passage that crosses the spherical surface of the liquid chamber in the diametrical direction, and the top wall surface of this liquid guide passage is A nozzle hole cut perpendicular to the passageway causes a collision between a counterflow that concentrates from both ends of the passageway toward the nozzle hole along the liquid guide passage and a direct flow that is concentrated in the liquid chamber and proceeds straight to the nozzle hole. However, this spray nozzle is superior to the direct injection type and the swirling type in that it can disperse a fine spray of fine particles in an elongated circular shape, but it cannot be used at a wide angle. When spraying, as the distance increases, the spray force at both ends of the elongated circle becomes weaker and the particles are drawn closer to the center, narrowing the spray width, or the particles at both ends become rougher than the center, making it impossible to spray uniformly. .

The object of the present invention is to provide an impinging flow type spray nozzle of this type which can eliminate the above-mentioned conventional drawbacks, and the construction thereof will be described in detail with reference to the illustrated embodiments as follows.

In the figure, 1 connects the cap 4 to the cap body 2 via the packing 3.
5 is a liquid chamber which is extruded into the nozzle hole plate 1, and 6 is an arc-shaped liquid guide which is extruded across the inner surface of the spherical wall 7 of the liquid chamber 5 in the diametrical direction. The passage 8 is a nozzle hole cut into the pressure top wall of the liquid guide passage 6 perpendicularly to the passage,
Two or more nozzle holes may be arranged in parallel.

Accordingly, the liquid chamber 5 is symmetrically narrowed inward to the nozzle hole plate 1 on both sides of the liquid guide passage 6 of the spherical wall 7 which is forced out in a hemispherical shape as in the conventional nozzle hole plate of this type. Section 9 has been established,
As shown in FIG. 5, the liquid chamber 5 is narrowed at both left and right sides of the nozzle hole 8.

The pressurized liquid that has now entered the liquid chamber 5 of the nozzle hole plate 1 from the mouthpiece body 2 is caused by the spherical wall 7 of the liquid chamber 5 having a bulge at both ends of the liquid guide passage 6 and a constriction part 9 in the middle of the abdomen. Therefore, the liquid flowing from the bulge of the liquid chamber is accelerated at the narrowed part, and the flow velocity of the counterflow toward the nozzle hole 8 in the liquid guide passage 6 becomes faster. Therefore, the collision force of the counterflow in the liquid guide passage increases. As a result, the nozzle hole 8 produces an elongated, circular-shaped diffused spray that has excellent penetrating power far into fine particles.

As described above, the present invention has a hemispherical liquid chamber and an arcuate liquid guide passage that crosses the inner spherical surface in the diametrical direction by extrusion into the nozzle plate attached to the mouthpiece body. In the device in which a nozzle hole is cut in the extrusion top wall perpendicular to the passage, a part of the outer peripheral spherical wall of the liquid chamber is symmetrically inwardly carved in the left and right sides of the liquid guide passage. Since the liquid chamber is narrowed on both sides of the nozzle hole of the liquid guide passage, this type of conventional spray nozzle performs diffused spraying in an elongated circular shape. Except for the drawback of not being able to be sprayed, it is now possible to spread long and thin circular shaped pine dew that has a uniform concentration in each part of the fine particles and has strong penetrating power to reach long distances.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a longitudinal side view, and Fig. 3 is a front view of the nozzle hole plate.
FIG. 4 is a vertical sectional side view from the previous time, and FIG. 5 is a back view of the nozzle hole plate. 1 - Nozzle hole plate, 2 - Mouthpiece body, 5 - Liquid chamber, 6 - Liquid guide passage,
7-spherical wall, 8-nozzle hole, 9-restriction part.

Claims (1)

[Scope of utility model registration request] A hemispherical liquid chamber and an arc-shaped liquid guide passage that crosses the inner spherical surface in the diametrical direction are attached to the nozzle hole plate attached to the nozzle body. A part of the outer periphery spherical wall of the liquid chamber is cut into a nozzle hole.
A spray nozzle characterized in that the liquid chamber is narrowed symmetrically inward at both left and right sides of the liquid guide passage so that the liquid chamber is not narrowed on both sides of the nozzle hole portion of the liquid guide passage.