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1. Field of the Invention
The present invention relates generally to a percussive sprinkler, and more particularly to an innovative one which is designed for accurate adjustment of the outflow angle.
2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98
Percussive sprinklers are extensively used for irrigation in gardening applications, since circulating or reciprocating water sprinkling of the percussive sprinklers can be realized in an annular zone.
A percussive sprinkler that allows users to change the spraying distance has been developed in response to diversified sprinkling and irrigation demands. In the present invention, the inventor has improved a percussive sprinkler with adjustable outflow angle. Given the fact that a variety of percussive sprinklers with adjustable outflow angle make it difficult to adjust accurately the outflow angle, there is still a big room for improvement of the existing percussive sprinkler.
Thus, to overcome the aforementioned problems of the prior art, it would be an advancement if the art to provide an improved structure that can significantly improve the efficacy.
Therefore, the inventor has provided the present invention of practicability after deliberate design and evaluation based on years of experience in the production, development and design of related products.
The enhanced efficacy of the present invention is as follows:
Based on the unique design of the present invention wherein the outflow angle regulator is set on the percussive sprinkler, and also comprises of: an angle division and locating frame, a driving rod and locating portion. The tooth flange of the angle division and locating frame is meshed with the tooth flanged portion of the driving rod, so the rotary shift of the sprinkler head can be located segmentally, enabling users to adjust accurately, conveniently and flexibly the outflow angle of the sprinkler head with better applicability.
Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.
A percussive diversion frame 13 is assembled flexibly onto a preset location of the main body 10. A hydraulic pusher 131 and a torsional spring 132 are arranged at one side of the percussive diversion frame 13. The hydraulic pusher 131 is located correspondingly with a spacing to the front end of the sprinkler head 11 of the main body 10.
A swaying portion 20 is formed between the main body 10 and assembly portion 12 or between the sprinkler head 11 and assembly portion 12.
An outflow angle regulator 30 is arranged correspondingly to the swaying portion 20. Said outflow angle regulator 30 comprising an angle division and locating frame 31, which is provided with an arched surface 310 and tooth flange 311 along the arched surface 310. The arched surface 310 of the angle division and locating frame 31 is designed into an arched pattern. Moreover, the angle division and locating frame 31 is provided with a hollow portion 312, which is located correspondingly to the arched surface 310, such that the tooth flange 311 is formed internally onto the arched surface 310. A driving rod 32 is provided with a tooth flanged portion 321 that can be meshed with the tooth flange 311 of the angle division and locating frame 31. The tooth flanged portion 321 of the driving rod 32 is set annularly onto one end of the driving rod 32. A locating portion 33 is used to limit the driving rod 32 and make it in a rotatable state.
The tooth flange 311 of the angle division and locating frame 31 for the outflow angle regulator 30 is meshed with the tooth flanged portion 321 of the driving rod 32, so the rotary shift of the sprinkler head 11 can be located segmentally, enabling users to adjust accurately the outflow angle of the sprinkler head 11.
Referring to
Based upon above-specified structural design, the percussive sprinkler of the present invention is operated as follows: the assembly portion 12 of said percussive sprinkler is assembled onto an inlet pipe. When the water stream is conveyed to the main body 10 through the assembly portion 12, water is fed into the circumferential flow channel 221 of the rotating seat 22 via water inlet 211 of the permanent seat 21, and then sprayed from the sprinkler head 11 of the main body 10. In such case, water flow may impinge on the hydraulic pusher 131 of the percussive diversion frame 13, so that the hydraulic pusher 131 sways outwards, and the torsional spring 132 of the percussive diversion frame 13 generates a torsional restoring force, enabling rotary resetting of the hydraulic pusher 131. Meanwhile, sprinkling and circular motion are generated simultaneously to ensure rotary sprinkling of the percussive sprinkler.
The core design of the percussive sprinkler of the present invention lies in that, an outflow angle regulator 30 is set correspondingly to said swaying portion 20. Referring to
Referring also to