JPS6138686Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a snow removal nozzle, especially a water amount adjustment device for a snow removal nozzle.
As proposed in many publications such as Publication No. 88427, the amount of watering was adjusted by raising and lowering a screw-type water amount adjustment knob, which required turning the knob many times, which was time-consuming and limited the range of adjustment. However, it is an object of the present invention to provide a rotary water amount adjusting device for a snow-blowing nozzle that can eliminate these drawbacks.

The feature of the present invention is that the water volume adjustment knob is freely rotatably attached to the center of the nozzle body, and the base end of the knob is inserted into the water passage opening that is continuous with the cavity. A water passage groove is formed in the opening of the water hole, and the amount of water sprinkled can be adjusted by rotating the water amount adjustment knob without raising or lowering the knob.

Next, the structure and operation of the present invention will be explained with reference to the accompanying drawings.

Buried in the road and installed standpipes 2 in places of water pipe 1
The water passage hole 4 at the bottom of the nozzle body 3 is externally fitted onto the riser pipe 2, and the cavity 6 is provided above the riser pipe 2 through the water passage hole 4a of the partition wall 5. A water sprinkling nozzle port 7 communicating with the cavity 6 on the top surface of 3
A through hole 8 communicating with the cavity 6 is provided in the center of the upper surface of the nozzle body 3, a rubber cylinder 9 is fitted into the through hole 8, and the rubber cylinder 9 has a driver groove 10 at the tip. The water flow adjustment rod 11 is inserted so as to be freely rotatable, and the base end of the water flow adjustment rod 11 is inserted into the opening 4b of the water passage hole 4a, and the guide ring 12 is inserted between the rubber cylinder 9 and the tip of the water flow adjustment rod 11. An appropriate number of water passage grooves 13 are formed at the base end of the water flow adjustment rod 11, and an appropriate number of water passage grooves 14 are formed at the peripheral edge of the water passage hole opening 4a.

3 to 5 show examples of the water passage grooves 13 and 14, and FIG. 3 shows one at the base end of the water volume adjustment rod 11.
Figure 4 shows a combination of two slanted water grooves 13a and one slanted water groove 14a. FIG. 5 shows a state in which two vertical water channels 13c are provided and a combination state in which two substantially horizontal water channels 14c are provided. There may be three or more water passage grooves 13, 14. In addition, a case is shown in which a rubber tube 9 and a guide ring 12 are provided as loose attachment means for the water amount adjustment rod 11.
Although the nozzle body 3 is shown as having an upper and lower two-part structure connected by a screw 15, it goes without saying that these may be changed as appropriate.

The water press-filled into the riser pipe 2 flows from the water passage hole 4a to the water passage groove 14 of the opening 4b and the water flow adjustment rod 1.
Water is injected into the cavity 6 through the opening width a formed by overlapping the water passage grooves 13 at one base end, and is sprayed from the nozzle port 7.

The opening width a can be adjusted in a wide range with one touch by a small rotation angle b of the water amount adjustment rod 11, and fine adjustment is also easy.

In addition, the base end of the water volume adjustment rod 11 is inserted into the water passage hole 4a, and the water flow grooves 13 and 14 are formed in both the opening 4b of the water flow hole 4a, the water volume adjustment rod 11, and the base end. Although it has a simple structure that does not use any support member at the proximal end, it can obtain the same water flow effect as the screw type, and also allows for a wider range of adjustment and fine adjustment than the screw type.The practical effects are as follows: big.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional front view, FIG. 2 is a cross-sectional plan view, and FIGS. 3 to 5 are perspective views of essential parts. 2... Nozzle body, 4a... Water passage hole, 6... Cavity, 11... Water volume adjustment rod, 13, 14... Water passage groove.

Claims (1)

[Scope of utility model registration request] Attach the water volume adjustment knob to the center of the nozzle body so that it can rotate freely, insert the base end of the knob into the water hole opening that is continuous with the cavity, and form a water groove between the base end of the knob and the water hole opening. A snow melting nozzle characterized in that the amount of water sprayed is adjusted by rotating a water amount adjustment knob without raising or lowering the knob.