Cold and hot water pipeline connecting device capable of automatically closing or opening channel

Abstract

The invention relates to a cold and hot water pipeline connecting device capable of automatically closing or opening a channel. The cold and hot water pipeline connecting device capable of automatically closing or opening the channel comprises a valve body sleeve, a door plate device and a one-way valve; a cavity is formed in the valve body sleeve; a first opening is formed in one side of the cavity; a second opening is formed in the other side of the cavity; the door plate device is arranged on one side of the first opening; and the one-way valve is arranged in the cavity or on an extension pipe communicated with the cavity. According to the cold and hot water pipeline connecting device capable of automatically closing or opening the channel, through the door plate device, the phenomenonthat when a user only opens a cold water faucet and flushes after using a closestool, hot water flow flows into cold water, and accordingly a gas water heater is triggered to be ignited for combustioncan be avoided; and the water flow channel can be automatically opened or closed according to the temperature of the instantly-passing water flow, and the temperature of the water flow in the pipeline at a water use point position is more accurately controlled.

Description

technical field [0001] The invention relates to the technical field of domestic hot water pipeline circulation, in particular to a cold and hot water pipeline connection device that can automatically close or open channels. Background technique [0002] Various types of domestic water heaters with water circulation preheating function in the prior art have the following problems in practical application, that is, when the user opens the water connected by the "H-shaped hot and cold water pipe connector" in the prior art, When cold water is used at the cold water faucet, the instantaneous pressure difference between the hot and cold water pipes will cause the water flow in the hot water pipe to flow into the cold water faucet and ignite the burner of the water heater by mistake. In another case, when the water tank of the flush toilet in the same pipeline environment is filled with water, the water flow in the hot water pipeline will also be caused to enter the cold water pip...

AI Technical Summary

Problems solved by technology

[0004] The cold and hot water pipeline connecting device that can automatically close or open the channel provided by the present invention can automatically open or close the water flow channel according to the strength of the immediately passing water flow when it is used in conjunction with the water heater and the water circulation device, which can avoid when the user only opens the channel. When the cold water faucet is used, the water flow of the hot water pipe flows into the cold water. It can also solve the phenomenon that the use of cold water such as flushing the toilet incorrectly triggers the ignition of the burner of the gas water heater. channel, which can make users more comfortable, and can also achieve more energy-saving application effects

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