One-handle Type Faucet having a double anti-reverse function to prevent waste materials from flowing backward into the faucet when disaster happens

Abstract

A faucet includes a faucet body provided with a receiving chamber, a first outlet port and a second outlet port, a first check valve mounted in the receiving chamber of the faucet body and located between the first outlet port and the second outlet port of the faucet body, a water output unit mounted on the faucet body and having an inner portion provided with a receiving space connected to the second outlet port of the faucet body, and a second check valve mounted in the receiving space of the water output unit. Thus, the first check valve co-operates with the second check valve to form a double anti-reverse function to prevent the waste water from flowing backward into the water entrance of the faucet body so as to protect the water source of the faucet.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a faucet and, more particularly, to a one-handle type faucet.[0003]2. Description of the Related Art[0004]A conventional faucet comprises a faucet body having an inner portion provided with a receiving chamber and having a periphery provided with a first outlet port and a second outlet port each connected to the receiving chamber, a control valve mounted in the receiving chamber of the faucet body, a water output unit mounted on the faucet body and connected to the second outlet port of the faucet body. The faucet body is provided with a water entrance connected to the receiving chamber. The receiving chamber of the faucet body is connected between the water entrance, the first outlet port and the second outlet port of the faucet body. The water entrance, the first outlet port and the second outlet port of the faucet body are isolated from each other and are connected by the receiving ch...

AI Technical Summary

Benefits of technology

The present invention provides a one-handle type faucet with a double anti-reverse function to prevent waste materials from flowing backward into the faucet when disaster happens. The faucet has a receiving chamber with a first outlet port and a second outlet port, a first check valve, a second check valve, and a water output unit with a receiving space connected to the second outlet port. The first check valve is located between the first outlet port and the second outlet port of the faucet body, while the second check valve is located in the receiving space of the water output unit. The plug of the second check valve is tightly inserted into the socket of the water output unit to isolate the water output unit from the second check valve, while the sealing gasket of the first check valve presses the peripheral wall of the receiving chamber to isolate the second outlet port of the faucet body from the water entrance of the faucet body so that the first check valve co-operates with the second check valve to form a double anti-reverse function to prevent the waste water from flowing backward into the water entrance of the faucet body.

Problems solved by technology

However, when the spraying unit is placed in a drainage or sink, the waste water from the drainage or sink easily flows through the spraying unit, the water output unit and the second outlet port of the faucet body into the receiving chamber of the faucet body and is delivered into the water entrance of the faucet body to pollute the water source of the faucet body, thereby causing danger to the user.