Abstract: A revolvingly spraying device includes a sheath tube and a revolvingly spraying tube. The revolvingly spraying tube includes a transmitting tube and a curved tube connected with the transmitting tube. The transmitting tube is inserted within the sheath tube. A front bearing is provided in one end, near the curved tube, of the transmitting tube, and a rear bearing is provided in the other end of the transmitting tube. The revolvingly spraying tube has a front position limiting portion radially protruding therefrom to retain the front side of the front bearing, and a rear position limiting portion radially protruding therefrom to retain the rear side of the rear bearing. Thus, the revolvingly spraying device has fewer component parts and is convenient for assembly.

Abstract: Disclosed is a rotary spraying device in which a fluid tube is assembled with a rotary means formed to have a channel structure. A portion of a fluid which flows through the fluid tube flows into the rotary means so as to provide a rotation applying force for rotating the rotary means when the fluid flows through the channel structure in the rotary means. Thus, the fluid is sprayed rotatably from the fluid tube which is rotated with the rotary means.

Abstract: A spraying device includes a rotatable outer fluid transmission tube and an inner fluid transmission tube disposed in the outer fluid transmission tube. A friction reducing layer, rotated together with the outer fluid transmission tube, is provided between the outer fluid transmission tube and the inner fluid transmission tube. The friction reducing layer is made of a material having a low friction coefficient and has a smooth inner wall surface, so as to make a friction force between the friction reducing layer and the inner fluid transmission tube lower and improve the durability of the inner fluid transmission tube.

Abstract: A fluid spraying device comprises a fluid tube rotatably disposed therein and a conveying tube disposed in the fluid tube. The fluid tube has a conveying section, a bent section, and a decreasing section connected therebetween. The decreasing section has a cross section area smaller than that of the bent section. One end of the conveying tube extends through the fluid tube to the decreasing section, so as to cause Venturi effect to cause a contained fluid being sprayed out from the conveying tube when a fluid flows through the fluid tube.

Abstract: A revolvingly spraying device includes a sheath tube and a revolvingly spraying tube. The revolvingly spraying tube includes a transmitting tube and a curved tube connected with the transmitting tube. The transmitting tube is inserted within the sheath tube. A front bearing is provided in one end, near the curved tube, of the transmitting tube, and a rear bearing is provided in the other end of the transmitting tube. The revolvingly spraying tube has a front position limiting portion radially protruding therefrom to retain the front side of the front bearing, and a rear position limiting portion radially protruding therefrom to retain the rear side of the rear bearing. Thus, the revolvingly spraying device has fewer component parts and is convenient for assembly.

Abstract: A spraying device includes a rotatable outer fluid transmission tube and an inner fluid transmission tube disposed in the outer fluid transmission tube. A friction reducing layer, rotated together with the outer fluid transmission tube, is provided between the outer fluid transmission tube and the inner fluid transmission tube. The friction reducing layer is made of a material having a low friction coefficient and has a smooth inner wall surface, so as to make a friction force between the friction reducing layer and the inner fluid transmission tube lower and improve the durability of the inner fluid transmission tube.

Abstract: A fluid spraying device comprises a fluid tube rotatably disposed therein and a conveying tube disposed in the fluid tube. The fluid tube has a conveying section, a bend output section, and a decreasing section connected therebetween. The decreasing section has a cross section area smaller than that of the bend output section. One end of the conveying tube extends through the fluid tube to the decreasing section, so as to cause Venturi effect to cause a contained fluid being sprayed out from the conveying tube when a fluid flows through the fluid tube.

Abstract: Disclosed is a rotary spraying device in which a fluid tube is assembled with a rotary means formed to have a channel structure. A portion of a fluid which flows through the fluid tube flows into the rotary means so as to provide a rotation applying force for rotating the rotary means when the fluid flows through the channel structure in the rotary means. Thus, the fluid is sprayed rotatably from the fluid tube which is rotated with the rotary means.