JPS6344119Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a water spray nozzle for road snow removal, which sprays underground water, seawater, etc. onto the road surface to erase snow.

[Prior art] Conventional water spray nozzles of this kind are, for example, developed in the 1970s.
As in Publication No. 13209, water from the water pipe is once injected into the cavity through the water supply hole, and then water is sprayed onto the road surface from the nozzle hole, and the amount of water sprayed can be adjusted by moving the water volume adjustment knob up and down. It is being done.

[Problems to be solved by the invention] However, although it is possible to adjust the amount of water sprinkled by moving the water amount adjustment knob up and down, there is a limit to the distance the water can fly.

In order to eliminate this drawback, the diameter of the water sprinkling port has been made smaller to increase the flying distance, but in this case, the amount of water sprinkled is significantly reduced due to the small diameter of the water sprinkling port, making the snow removal effect less effective. It will be damaged.

The purpose of the present invention is to provide a water sprinkler nozzle for road snow removal that has a desired diameter of the water sprinkling port and is capable of producing a sufficient amount of water to remove snow while also sufficiently extending the flying distance. shall be.

[Means for solving the problem] The present invention provides a plurality of water sprinkling ports communicating with the cavity at an angle at the top of the nozzle so that the diameter gradually decreases from the inner opening to the outer opening. , a water amount adjustment member is disposed between the plurality of water sprinkling ports,
A sprinkling spout is formed in communication between the sprinkling spout and the cavity, and a nozzle center side of the inner surface of the sprinkling spout is formed as an inclined surface facing in the direction of the sprinkling spout.

[Example] Next, the structure and operation of this invention will be explained by referring to an example shown in the drawings.

As shown in FIGS. 1A and 1B, a water sprinkling port 4 is provided in which the inner circumferential surface 3 is formed in an inclined manner so that the diameter gradually decreases from the inner opening 1 to the outer opening 2.

In this case, the cross-sectional shape of the water spout 4 may be circular or oval. Further, a stepped inclined portion may be formed in a part of the inner circumferential surface 3.

In addition, as shown in FIG. 1B, the inner opening 1 of the water spout 4
A water guide groove 5 communicating with the nozzle body 6 may be formed on the inner circumferential wall surface of the nozzle body 6.

On the inner opening 1 side of the water spout 4, there is a water spout 15 that communicates with the cavity 10 and the water spout 4 through a throttle wall 14 surrounding a knob 13 that is a water volume adjustment member.
An inclined surface 15a facing in the same direction as the water spout 4 is formed on the outer peripheral surface of the aperture wall 14, that is, on the center side of the nozzle body 6 on the inner surface of the water spout 15. The inner diameter of the water spout 15 is larger than the inner diameter of the water spout 4.

As shown in FIG. 2, water injected into the cavity 10 from the water supply pipe 7 through the riser pipe 8 and the water supply hole 9 passes through the water spout 15 and is sprayed vigorously from the water spout 4.

That is, the water injected from the cavity 10 into the water spout 15 is given speed by the inclined surface 15a facing in the same direction as the water spout 4, and is further spouted into the water spout 4 while being throttled, and then gradually becomes smaller in diameter. It is further rapidly constricted by the inclined inner peripheral surface 3 and is injected while being accelerated by extreme pressure.

Further, although not shown, a rectifying cylinder may be provided in the cavity 10 so that the water flowing into the cavity 10 is once rectified before being ejected from the water sprinkling port 4.

Furthermore, when the water flows forcefully from the water supply hole 9 into the cavity 10, the inflow water is temporarily suppressed by the lower end of the water volume adjustment knob 13, disperses outward, and injects into the cavity 10, so that the force weakens. , water spout 15
The water that reaches the water spout 4 while being squeezed by the slanted surface 15a and given speed by being guided by the slope 15a is injected into the inner opening 1 of the water spout 4 while being rapidly squeezed, and is accelerated while being accelerated. Water is sprayed with force. The water spout 15 and the water spout 4 are capable of spraying a sufficient amount of water while still maintaining the inner opening 1.
The spraying distance can be two to three times longer than that of a conventional water spout which is formed to have approximately the same diameter from the to the outer opening 2.

Therefore, by being narrowed by the water spout 15 and given speed by the inclined surface 15a, and by forming each water spout 4 to have a smaller inner diameter than the water spout 15, Since it is possible to provide a water spray nozzle that sprays approximately the same amount of water but has a spray distance two to three times that of conventional water spray nozzles, it can be fully used even on wide roads.

[Effects of the invention] The present invention provides a plurality of water sprinkling ports communicating with the cavity at an angle at the top of the nozzle so that the diameter gradually decreases from the inner opening to the outer opening. A water volume adjustment member is installed between the water ports,
A water spout is formed in communication between the water spout and the cavity, and the nozzle center side of the inner surface of the water spout is formed as an inclined surface facing in the direction of the water spout, and the diameter of the water spout is set to a desired value. It is possible to provide a water nozzle for road snow removal, which has a water amount that can exhibit a sufficient snow removal effect and can also sufficiently extend the flying distance.

[Brief explanation of drawings]

The drawings are examples of this invention, and Figures 1A and B
2 is a cross-sectional view showing the water sprinkling port and the water spout, and FIG. 2 is a cross-sectional view of the nozzle. 4... Water spout, 10... Cavity, 13... Pick, 15... Water spout.

Claims (1)

[Scope of utility model registration request] A plurality of water sprinkling ports communicating with the cavity are provided diagonally at the top of the nozzle so that the diameter gradually decreases from the inner opening to the outer opening, and a water amount adjustment member is provided between the plurality of water sprinkling ports. , a water spout is formed in communication between the water spout and the cavity, and a nozzle center side of the inner surface of the water spout is formed as an inclined surface facing in the direction of the water spout. Water nozzle for road snow removal.