Patent ID: 8707982
Filing Date: 2014-04-29
Classification: E03B,Y10T

Abstract:
1. An anti-freeze vacuum breaking structure for a faucet comprises: a tube body including a chamber defined therein, an inlet formed on one end thereof, an outlet formed on another end thereof, a connecting hole, and an intake valve, the inlet, the outlet, the connecting hole, and the intake valve communicating with the chamber; a control valve fixed in the chamber of the tube body and including a housing, a shaft bolt, a rod, a stopping sleeve, an upper ceramic piece, a lower ceramic piece, and a seat, the shaft bolt being inserted into the housing and having a connecting segment and an actuating segment relative to the connecting segment, a watering room extending from the actuating segment of the shaft bolt, a through hole extending from the connecting segment to communicate with the watering room, the shaft bolt including an outflow orifice defined on an outer side thereof to communicate with the watering room, the connecting segment and the outflow orifice extending out of the housing, the rod being inserted into the shaft bolt and including an increased shoulder arranged on one end thereof, the shoulder including a first stopping ring fitted thereon, the rod also including a decreased fitting section defined on another end thereof relative to the increased shoulder, the decreased fitting section having a resilient element fitted thereon, an air channel, and an air bore to communicate with the air channel, the rod including a second stopping ring fitted on an outer peripheral wall thereof adjacent to the fitting section, the upper ceramic piece being fitted in the housing to engage and drive the actuating segment of the shaft bolt, the lower ceramic piece being fitted in the housing and contacting with the upper ceramic piece, the seat screwing with the housing and including an intake passed therein; a handle connected with the connecting hole of the tube body and including a rotating member coupling with a driving stem and inserted in the chamber of the tube body, the driving stem being hollow and including one end with an aperture to connect with the rotating member and including another end fitted with the connecting segment of the shaft bolt of the control valve.