CN206754485U - A cold and hot water mixing valve with a return valve - Google Patents

Abstract

The utility model relates to a take cold and hot water mixing valve of return water valve, it includes valve body, case and handle, be equipped with cold water interface, hot water interface and delivery port on the valve body, be equipped with a passageway between internal cold water pipeline of valve body and the hot water pipeline, set up a check valve in the passageway, the check valve control rivers are one-way to flow into cold water pipeline from the hot water pipeline. This cold and hot water mixing valve's is internal to set up the return water valve, and hot water pipeline and cold water pipeline one-way link up and constitute the return water pipeline, use with the cooperation of return water circulating device, realize the hot-water real-time supply in house, need not to wait for cold water to expect to have hot water to use after having gone away, realize opening the effect of usefulness promptly, do not waste water simultaneously, save time, improved the travelling comfort that hot water used.

Description

A cold and hot water mixing valve with a return valve

technical field

The utility model relates to a hot and cold water mixing valve.

Background technique

With the improvement of people's living standards and the increase of living area, many families have two or more toilets or shower rooms, and the hot water pipes of water heaters need to be laid long; when taking a bath, they all hope to enjoy it like a five-star hotel , There is no need to wait for hot water when it is turned on, and it can provide the family with timely hot water supply 24 hours a day. Now many families choose to install the return water circulation device to be used in conjunction with the water heater to realize the real-time supply of hot water. At the cold and hot water outlet under the washbasin, a one-way water valve connects the hot water pipe with the cold water pipe, and hot water can flow into the cold water pipe to form a return water pipe.

Contents of the invention

The purpose of this utility model is to provide a cold and hot water mixing valve with a return valve, which is provided with a pipeline for one-way flow of hot water to cold water, and is used in conjunction with a return water circulation device to achieve easy installation.

The utility model is realized in the following way: a hot and cold water mixing valve with a return valve, which includes a valve body, a valve core and a handle, the valve body is provided with a cold water interface, a hot water interface and a water outlet, and its characteristic is A passage is arranged between the cold water pipeline and the hot water pipeline in the valve body, and a check valve is arranged in the passage, and the check valve controls the flow of water from the hot water pipeline into the cold water pipeline in one direction.

The valve body also includes a valve core chamber, a cold water chamber, and a hot water chamber. The valve core is arranged in the valve core chamber and cooperates with the valve body to control the flow rate of cold and hot water and the water mixing ratio.

A through hole is provided between the hot water chamber and the cold water chamber, and a check valve is arranged in the through hole.

The utility model provides a cold and hot water mixing valve with a return valve. The body of the cold and hot water mixing valve is provided with a return valve. The hot water pipe and the cold water pipe are unidirectionally connected to form a return water pipeline, which cooperates with the return water circulation device. Use to realize real-time hot water supply for home, no need to wait for the cold water to be drained before hot water can be used, realize the effect of instant use, and at the same time do not waste water, save time, and improve the comfort of hot water use.

Description of drawings

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is a top view of the valve body of the present invention.

Fig. 4 is a cross-sectional view along line A-A of Fig. 3 .

detailed description

The implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings. The specific embodiments described here are only used to explain the present utility model, and are not intended to limit the present utility model.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a cold and hot water mixing valve with a return valve includes a valve body 1, a valve core 2 and a handle 3, and the valve body 1 is provided with a cold water interface 11. Hot water interface 12, water outlet 13, spool chamber 14, cold water chamber 15, hot water chamber 16 and mixed water chamber 17, the spool 2 is set between the spool chamber 14 and the valve body 1 Cooperate with controlling the flow rate and water mixing ratio of cold and hot water, a through hole 4 is provided between the hot water chamber 16 and the cold water chamber 15, and a check valve 5 is arranged in the through hole 4, and the check valve The valve 5 controls the flow of water from the hot water chamber 16 into the cold water chamber 15, and the cold and hot water mixing valve cooperates with the return water circulation device and the water heater to form a return water channel.

When a shower is required, the return water circulation device starts the water pump in an automatic, timing, remote control, manual or water flow sensor trigger mode, and pressurizes to inject cold water into the water heater. After being heated by the water heater, the cold water flows to the hot water pipe to the hot and cold water mixing valve. The check valve 5 in the hot and cold water mixing valve body is opened, the cold water stored in the hot water pipe flows into the cold water pipe to form a return water pipe, and the cold water in the hot water pipe is replaced with hot water to realize real-time hot water supply for the home. There is no need to turn on the faucet or shower in advance as in the traditional way and wait for the cold water to drain before using hot water to achieve the effect of instant use. At the same time, no water is wasted, time is saved, and the comfort of hot water use is improved.

The technical solutions described above are only preferred implementations of the present utility model. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principle of the utility model, which are also regarded as within the protection scope of the utility model.

Claims (2)

1. a kind of mixed cold and hot water valve with back-water valve (BWV), it includes valve body, valve element and handle, and the valve body is provided with cold water interface, heat Water interface and delivery port, it is characterized in that：A passage is provided between cold water pipeline and hot water line in the valve body body, it is described logical One check-valves is set in road, and the check-valves control current unidirectionally flow into cold water pipeline from hot water line.

2. a kind of mixed cold and hot water valve with back-water valve (BWV) according to claim 1, it is characterized in that：The valve body also includes valve element Chamber, cold water chamber, hot water chamber, the valve element are arranged on valve element chamber and coordinate the flow of control hot water or cold water with valve body and mix Water ratio,

A through hole is provided between the hot water chamber and cold water chamber, a check-valves is set in the through hole.