CN2256496Y

CN2256496Y - Cold and hot water mixing ball valve for water heater

Info

Publication number: CN2256496Y
Application number: CN 95224685
Authority: CN
Inventors: 郑景军
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-16
Filing date: 1995-11-16
Publication date: 1997-06-18
Anticipated expiration: 2005-11-16

Abstract

The utility model relates to a cold and hot water mixing ball valve for a water heater, comprising a triple valve body, a valve rod, a hand wheel and a ball valve core. The ball valve core is a shell body with a through hole in the direction of the valve rod, and the circumferential direction on the outer surface of the ball valve core is provided with two slots, wherein, one slot is communicated with the through hole on the valve core, and the other slot is isolated from the through hole on the valve core. The two slots compose the gradually varying flow area of different sizes. The valve solves the problem that the water temperature of the water heater is too high to regulate easily in the area with low water pressure by the method of making the hot and cold water into the ball valve to walk along two roads.

Description

A kind of hot and cold water mixing ball valve that is used for water heater

The utility model relates to a kind of ball valve, especially a kind of hot and cold water mixing ball valve that is used for water heater.

At present, domestic gas-fired water heater has been come into huge numbers of families, bring comfortable enjoyment to people, for the sake of security, usually gas water-heater is contained in outside the bathroom, in the bathroom, only adorn the temperature height that a valve of regulating the hot water flow size of coming out from water heater is used for regulating hot water, to adapt to the needs of shower.Gas water-heater generally is to beat " ever-burning flame " earlier in use, burnt gas switch is transferred to big position open water inlet switch then, lean on the pressure of water to promote Pneumatic-hydraulic interlocked switch, make fuel gas buring, heating comes water, the valve that re-uses on the hot water pipe is regulated warm water by regulating water flow, the too high water flow of then turning down of water temperature, this regulating method is coming the bigger place of water pressure to use easily, but coming the hypodynamic place of hydraulic pressure just inconvenient, when the too boiling hot need of hot water are turned the water yield down in the hope of making hot water when cooling, often be one to turn hot water flow down slightly, come water pressure just to be not enough to promote Pneumatic-hydraulic interlocked switch, the combustion gas large-scale combustion stops, become " ever-burning flame ", the hot water in the bathroom has just become cold water.

The water resources of our country is relatively poor, and water pressure fluctuations is very big in many cities, have in addition be in low hydraulic pressure for a long time, mostly the above urbanite water consumption of three floors is one hydraulic pressure deficiency of thread, has just influenced the use of domestic gas-fired water heater.

In order to separate the too high problem of directly turning hot water flow down of hot water temperature that to send the bathroom because of water heater here, expect in the bathroom, adorning a water mixing valve, introduce a certain amount of cold water to reduce hot water temperature from water heater, but the hot water or cold water of common water mixing valve mixes in valve body, this valve is used on the pipeline of water heater, open cold water when one, cold water is rushed in mixing valve, and its pressure still can make Pneumatic-hydraulic interlocked switch motion action in the water heater to the impact of the delivery circuit of water heater---and make combustion gas stop large-scale combustion and become ever-burning flame.

The purpose of this utility model is to improve the ball valve that the deficiencies in the prior art provide a kind of mixing hot and cold water that hot-water line in cold water pipe and the gas water-heater is merged to use, and this valve can not influence the proper functioning of gas water-heater when regulating the hot and cold water ratio arbitrarily.

The utility model is design like this: this valve comprises three way valve, valve rod, handwheel and a spherical valve core that two water intakes and a water outlet are arranged, connect firmly spherical valve core on one end of valve rod, the valve rod that has spherical valve core is fixed in the three way valve, spherical valve core rotates in valve body by rotation valve rod, the other end of valve rod exposes three way valve hermetically, and connects firmly with handwheel; Spherical valve core is a housing that a through hole is arranged on the direction of valve rod, has two grooves on the circumferencial direction on the outer surface of spherical valve core, and the through hole with on the spool of one of them groove is linked up, and the through hole on another groove and the spool is isolated.Two grooves constitute and vary in size and the circulation area of gradual change, two grooves the position of spherical valve core circumferencial direction relation should guarantee at least when the circulation area of a groove by little to greatly by a water intake time, the circulation area of another groove is passed through another water intake from large to small.

When practical application, hot-water line that fetches from water heater of two water intakes, another connects cold water pipe, when the circulation area of two grooves communicates with two water intakes, two kinds of water enters outlet pipe respectively in the circumferential surface of spherical valve core and housing, like this, cold water causes the water heater large-scale combustion to stop with regard to can directly not impacting hot-water line and becomes " ever-burning flame ".

In order to obtain a bigger using scope, the Design of length of two grooves becomes long a, weak point, and the logical area of one of them intake pipe and a groove is linked up, and when circulation area has gradual change, another intake pipe is logical with another groove, when the hot water temperature who provides when water heater is suitable, stops to sneak into cold water, or when the bather need carry out cold bath, can only introduce cold water again.

The hot and cold water mixing ball valve that is used for water heater that the utility model provides, walk the method on two roads and solved problem by making cold and hot two kinds of water enter ball valve in the low too high difficult adjusting of regional water heater temperature of hydraulic pressure, it is simple in structure, and is easy to use, cheap.

Below by drawings and Examples the utility model is elaborated

Fig. 1: main sectional view of the present utility model;

Fig. 2: the plan view of spherical valve core;

Fig. 3: the rear view of spherical valve core;

Fig. 4: A-A sectional view (initial state) among Fig. 1;

Fig. 5: right sectional view of the present utility model;

Fig. 6: spool forwards the view of state 1 among Fig. 4;

Fig. 7: spool forwards the view of state 2 among Fig. 4;

Fig. 8: spool forwards the view of state 2 among Fig. 4;

Fig. 9: spool forwards the view of state 3 among Fig. 4;

Figure 10: spool forwards the view of state 4 among Fig. 4;

Figure 11: spool forwards the view of state 5 among Fig. 4;

Embodiment

As Fig. 1,4, shown in 5, intrinsic spherical valve core 2 on the valve rod 1, the valve rod that has spool 2 is fixing in three way valve 3, water intake 3-1 is arranged on the three way valve, water intake 3-2 and water outlet 3-3, water intake 3-1 and cold water pipe join, water intake 3-2 joins with the hot-water line that comes out from water heater, two

grooves

4 and 5 are arranged on the circumferential surface of spherical valve core 2, groove 4 as shown in Figure 2, it and spool 2 inner chambers are linked up, the circulation area of its formation is changed to big by little in the direction of the clock, groove 5 (as shown in Figure 3) is not linked up with spool 2 inner chambers, and the circulation area that it constitutes is extremely changed greatly more from large to small by little in the direction of the clock, and the length of groove 5 is greater than the length of groove 4.

When turning clockwise spherical valve core, two grooves on it and the position of two water intakes relation and user mode are as follows:

Initial: two grooves are not all linked up with two water intakes, and state is for closing, as shown in Figure 4.

State 1: groove 5 is linked up with water intake 3-2, and to big gradual change, state is logical hot water only to its circulation area, and can be by little to big adjusting, as shown in Figure 6 by little.

State 2: groove 4 is linked up its circulation area by little extremely big gradual change with water intake 3-1, and groove 5 is still linked up with import 3-2, and to gradual change from large to small greatly again, state is that hot and cold water mixes adjusting shown in Fig. 7,8 to its circulation area by little.

State 3: groove 4 is linked up with import 3-1, its circulation area maximum, and groove 5 is not logical cold water only with water intake 3-2 communication state, as shown in Figure 9.

State 4: with initial, as shown in figure 10.

State 5: groove 5 is linked up with water intake 3-1, and to big gradual change, state is for only the logical cold water and the water yield are adjustable, as shown in figure 11 from little for its circulation area.

After spherical valve core forwards state 5 circulation area maximums to, cooperate with valve body and block by intrinsic block 6 on the valve rod, another mistake hour hands rotary spool, this valve be 1 oppositely repetition from state 5 to state, cooperates with valve body and blocks to initial state backstop 6.

Water intake 3-1 and water intake 3-2 place have gasket set 7 and gasket set 8 respectively, and O-ring seals 9 is arranged between valve rod and valve body.

Claims

1, a kind of hot and cold water mixing ball valve that is used for water heater, this valve comprises a three way valve that two water intakes and a water outlet are arranged, valve rod, handwheel and spherical valve core, connect firmly spherical valve core on one end of valve rod, the valve rod that has spherical valve core is fixed in the three way valve, the other end of valve rod exposes three way valve hermetically, and connect firmly with handwheel, it is characterized in that: spherical valve core is a housing that a through hole is arranged on the direction of valve rod, on the circumferencial direction on the outer surface of spherical valve core, have two grooves, the through hole with on the spool of one of them groove is linked up, and the through hole on another groove and the spool is isolated; Two grooves constitute and vary in size and the circulation area of gradual change, two grooves the position of spherical valve core circumferencial direction relation should guarantee at least when the circulation area of a groove by little to greatly by a water intake time, the circulation area of another groove is passed through another water intake from large to small.

2, the hot and cold water mixing ball valve that is used for water heater according to claim 1, it is characterized in that: the length of two grooves is long a, weak point, the circulation area of one of them intake pipe and a groove is linked up, and circulation area is when having gradual change, another intake pipe is logical with another groove.