JPH0523242Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an energy-saving snow-melting water nozzle that sprays groundwater vigorously even when a small amount of water is supplied when there is a shortage of groundwater.

[Problems to be solved by conventional techniques and ideas]

Various types of water spray nozzles have been proposed in the past, but all types have the disadvantage that when groundwater is insufficient and the amount of water conveyed is reduced, water flow is poor and snow removal efficiency is reduced.

In order to improve water sprinkling, it was proposed in Utility Model Application No. 62-24953 to install a water control groove on the wall facing the water supply valve, but the water control effect is not sufficient just by installing a water control groove. I confirmed that it is not.

It has been confirmed that this invention has an excellent water control effect by providing a horizontal annular concave part and a water supply guideway with a hook-shaped cross section in close proximity to the concave part. The technical challenge is to provide a water sprinkler nozzle for snow melting that performs efficient water sprinkling even when sending a small amount of water (the same applies to hot water), and that increases the snow melting efficiency accordingly.

[Means to solve the problem]

The gist of the present invention will be explained with reference to the accompanying drawings.

In a water sprinkling nozzle in which a nozzle head 3 is provided at the upper part of a base cylinder part to which a water pipe 1 is connected, and water sprinkling holes 4 are provided obliquely at several locations on a ceiling part 3a of this nozzle head 3, the nozzle head 3 A water introduction cavity 5 is formed inside the water introduction cavity 5, and a water supply hole 6 is opened at the center of the bottom 5a of the water introduction cavity 5. A concave portion 7 is provided, and a water guide path 8 recessed upward is formed in the ceiling portion 5b of the water introduction cavity 5, and the concave portion 7 and the water guide path 8 are formed to have a hook-shaped cross section. The present invention relates to a water spray nozzle for snow melting characterized in that the water supply guideway 8 has a water spray hole 4 communicating with the upper part thereof.

[Effect]

When groundwater is conveyed from the water pipe 1, it is sent into the water introduction cavity 5 through the water supply hole 6.

The groundwater introduced here is introduced into the water supply guideway 8 while swirling around the concave portion 7, and is sprayed from the water sprinkling holes 4.

〔Example〕

It is best to manufacture this product by stainless steel casting.

A water flow adjustment screw 9 is screwed and suspended in the center of the ceiling portion 3a of the nozzle head 3, and a water supply hole 10 is bored in the center of the lower end of the water flow adjustment screw 9.
When increasing the amount of water by drilling water volume adjustment holes 11 on the left and right sides of 0 and rotating the water volume adjustment screw 9 to form a gap between the lower end corner 9a of the water volume adjustment screw 9 and the water supply hole 6. is illustrated.

The water guide path 8 may be formed around the outer periphery around the water volume adjustment screw 9, or may be formed by being recessed only at the locations where the water spray holes 4 are drilled.

The perforation angle of the water sprinkling holes 4 is preferably about 23°.

In the figure, 12 is a packing, and 13 is a water supply base pipe.

[Effect of idea]

Since the present invention is configured as described above, when groundwater is introduced into the water introduction cavity 5, the groundwater swirls around the concave portion 7 provided in a horizontal annular shape, and the force of the groundwater increases with each swirl. In addition, the water supply guideway 8, which is close to the hook-shaped cross section, further adds a water control effect, so that groundwater is sprayed vigorously from the water sprinkling hole 4.

At this time, the groundwater is not directly passed from the water introduction cavity 5 through the sprinkling holes 4 to be sprayed, but is first guided to the water supply guideway 8, which is larger in diameter than the sprinkling hole 4, and then narrowed to the narrow sprinkling hole 4. Since the water is supplied and sprinkled in this manner, groundwater is sprayed from the water introduction cavity 5 more vigorously.

For this reason, this product cannot be used in places with abundant groundwater unless the water flow rate is controlled by tightening the water flow adjustment screw 9. However, in places with a small amount of groundwater, it is a type that creates a water flow and sends it out. This provides a watering nozzle that fully demonstrates watering ability and is ideal for use in places where underground water tends to be in short supply.

In terms of structure, it has a simple structure of just forming the concave part 7 and the water guide path 8 in the water introduction cavity 5, so it is easy to manufacture, and it has excellent practical advantages such as mass production and providing the product at a lower price. It has the following effects.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway front view of the product, and FIG. 2 is a plan view. DESCRIPTION OF SYMBOLS 1... Water pipe, 2... Base tube part, 3... Nozzle head, 3a... Ceiling part, 4... Water sprinkling hole, 5... Water introduction cavity part, 5a... Bottom part, 5b... Ceiling part ,6...
... Water supply hole, 7 ... Concave portion, 8 ... Water supply guideway.

Claims (1)

[Scope of utility model registration request] In a water sprinkling nozzle, a nozzle head is provided at the upper part of a base cylinder to which a water supply pipe is connected, and water spray holes are diagonally provided at several locations on the ceiling of this nozzle head, and a water introduction cavity is provided inside the nozzle head. A water supply hole is opened at the center of the bottom of this water introduction cavity, and a horizontal annular concave part recessed outward is provided on the peripheral wall of this water introduction cavity. A water supply guideway is formed in the ceiling of the water supply system, the water supply guideway being recessed upward, the recessed portion and the water supply guideway having a hook-shaped cross section, and a water spray hole communicating with the upper part of the water supply guideway. Water nozzle for snow removal.