| 摘要 |
Disclosed is a spray needle for a jet device, comprising a spray needle body (1) and a tapered part (2) arranged at the end of the spray needle body (1), and characterized in that the spray needle body (1) is circumferentially provided with supporting bodies, so that when the spray needle is assembled in a spray nozzle (9) of the jet device, the outer surfaces of the supporting bodies are coordinated with an inner chamber of the spray nozzle to limit the position of the spray needle body (1) and form fluid channels (3) among the supporting bodies, thereby being able to effectively prevent the spray needle from deviating from the spout of the spray nozzle or from radially swinging due to a very high and non-uniform radial pressure borne in the radial direction thereof, and avoid affecting the spraying effect of the spray nozzle on the premise of not affecting the smooth flow of the fluid when the pressure of the fluid passing through the spray nozzle is relative large or very high, and the velocity of the fluid is unstable. |
