Spraying device
AssigneeStrong Fortress Tool Co., Ltd.
InventorCHIN-NAN CHEN
Life of this patent
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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.
Claims8
A spraying device comprising:
- an outer fluid transmission tube which is disposed in the spraying device and is rotatable with an axial of the spraying device;
- the outer fluid transmission tube being in fluid communication with a fluid input tube which is used for connecting to a fluid supplying source;
- and an inner fluid transmission tube, used for connecting to a fluid container, being disposed in the outer fluid transmission tube, wherein a friction reducing layer, made of a material having a low friction coefficient, is provided between the outer fluid transmission tube and the inner fluid transmission tube and is rotated together with the outer fluid transmission tube, and an inner wall surface thereof is formed as with a smooth surface, so as to make a friction force between the friction reducing layer and the inner fluid transmission tube lower.
Dependencies are inferred from the claim text.