Patent ID: 9115817
Filing Date: 2015-08-25
Classification: F16K,Y10T

Abstract:
1. A rotation joint, comprising a base and a rotation member rotatably sleeved on the base, wherein the base has an end and an outer sidewall; the base defines at least one first air guiding hole and at least one first air outlet arranged apart; the outer sidewall of the base defines an air guiding groove along a partial periphery thereof, and at least one second air guiding hole is defined along a radial direction of the base and communicates with the air guiding groove; the at least one first air guiding hole communicates with the at least one second air guiding hole, thereby defining an air guiding channel in the base; the outer sidewall of the base further defines at least one second air outlet communicating with the at least one first air outlet, thereby defining an air output channel in the base; the rotation member has a sidewall defining a plurality of connecting holes arranged apart; at least one connecting hole of the plurality of connecting holes communicates with the at least one second air outlet, and the other connecting holes of the plurality of connecting holes communicates with the air guiding groove.