A sight structure that serves as both a fan-shaped water curtain and a projectile.

Abstract

This invention provides a nozzle structure that serves as both a fan-shaped water curtain and a fire hose. It primarily consists of a nozzle rotating device at the outlet of the fire hose. The rotating head and fixed pin of this device control the direction of the fan-shaped nozzle, either forward or upward. This transforms the forward-spraying water jet into a ribbon-like, semi-circular fire-extinguishing jet, capable of sweeping across large fire areas and quickly reaching the fire extinguishing target. Alternatively, the fan-shaped nozzle can be directed upward to spray a semi-circular water curtain, isolating the burning material to prevent the fire from spreading. Furthermore, a fine water mist is generated at the end of the sprayed water curtain, which not only cools the surface of burning objects but also absorbs black smoke and toxic substances, reducing air pollution and effectively improving the safety of firefighters at the fire scene.

Claims

1. A nozzle structure that serves as both a fan-shaped water curtain and a spray nozzle, mainly comprising a spray nozzle rotating device consisting of a main body, a rotating head, and a fan-shaped spray nozzle at the outlet end of a fire hydrant pipe, wherein, The rotating head and the fan-shaped sprinkler head are screwed or integrated into one piece, and their inner holes are connected. One side of the main body is integrated with the fire water pipe, and its inner hole is connected to the inner hole of the fire water pipe. The other side of the main body has a notch, making the overall end face of the main body concave. The rotating head is fitted into the notch and connected by a positioning shaft tube, so that the rotating head is axially connected to the main body. The inner hole of the main body is connected to the inner hole of the positioning shaft tube and the inner hole of the rotating head. In addition, a fixing pin is provided on the main body to fix the rotating shaft and prevent it from rotating. Therefore, when the fixing pin is removed, the rotating head can rotate 90 degrees around the main body. The rotation of the spray head allows the fan-shaped nozzle to face forward or upward. Fire water introduced from the fire hose passes through the inner hole of the main body, the inner hole of the positioning shaft tube, and the inner hole of the rotating head to the inner hole of the fan-shaped nozzle, spraying out a strip-shaped semi-circular water curtain. This can sweep across a large fire area and quickly achieve the goal of extinguishing the fire. It can also isolate the temperature of the burning material to prevent the fire from spreading. At the end of the sprayed water curtain, a fine water mist is generated, which can not only cool the surface of the burning object, but also absorb black smoke and toxic substances to reduce air pollution, effectively improving the safety of firefighters at the fire scene.

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