Mounting structure of a valve core seat of a pull-out faucet, and a pull-out faucet with a sensing function comprising said mounting structure

A pull-out faucet with a sensing function, comprising a mounting structure;

• wherein the mounting structure comprises:
• a faucet body and a valve core seat;
• the faucet body comprises a main pipe and a branch pipe in communication with a side wall of the main pipe;
• a restricting portion is protruded out radially into the branch pipe from an inner diameter of an end of the branch pipe in communication with the main pipe;
• a boss is arranged on a side surface of the valve core seat, and a stepped surface is formed on said side surface of the valve core seat around the boss;
• the valve core seat is inserted into the faucet body from a lower end of the main pipe and installed into the faucet body at a height that corresponds to the branch pipe, and the boss is inserted into the branch pipe through a space enclosed by the restricting portion, and the stepped surface abuts against the restricting portion and is locked and fixed to the restricting portion, the pull-out faucet further comprises a valve core, a solenoid valve, a pull-out tube, a pull-out spray head, and a sensor;
• a cold water inlet, a hot water inlet, and a mixed water outlet are formed on a lower surface of the valve core seat;
• a sensor-operated water chamber is formed on an upper surface of the valve core seat, a cold water aperture, a hot water aperture, and a mixed water aperture are formed on the boss on said side surface of the valve core seat, the cold water aperture and the hot water aperture are in communication with the cold water inlet and the hot water inlet respectively, and the mixed water aperture is in communication with the mixed water outlet through the sensor-operated water chamber;
• the solenoid valve is positioned in the main pipe, the solenoid valve is mounted on the upper surface of the valve core seat and closes an opening of the sensor-operated water chamber, and a valve head of the solenoid valve extends into the sensor-operated water chamber to control connection and disconnection between the mixed water aperture and the mixed water outlet;
• the valve core is positioned in the branch pipe, and the valve core is in communication with the cold water aperture, the hot water aperture, and the mixed water aperture of the valve core seat respectively;
• the pull-out tube movably passes through an upper end of the main pipe;
• a water inlet end of the pull-out tube is connected to the mixed water outlet of the valve core seat, and a water outlet end of the pull-out tube is connected to the pull-out spray head;
• the sensor is electrically connected to the solenoid valve.