CN2474841Y

CN2474841Y - Cold and hot water mixed water automatic constant temperature valve

Info

Publication number: CN2474841Y
Application number: CN 01219647
Authority: CN
Inventors: 张明亮; 王学成
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-16
Filing date: 2001-04-16
Publication date: 2002-01-30
Anticipated expiration: 2011-04-16

Abstract

A cold and hot water mixing automatic constant temperature valve comprises a memory alloy spring 3, a balancing spring 4, and a piston 2. The axial movement of the piston 2 is driven by the reciprocity between the elasticity change generated by the reaction of the memory alloy spring 3 to the water temperature and the balancing spring 4 to achieve the adjustment of the size of a cold and hot water outlet opening, thereby realizing the constant temperature of the mixed water. The temperature of outlet water can be changed by setting the temperature knob 6.

Description

Hot and cold water mixes the water automatic constant temperature valve

A kind of valve of automatic constant hot and cold water water-mixing temperature.Belong to valve and make the field.

Being mixed into our needed warm water with cold water and hot water often is needs.Mixed water valve is exactly a valve of realizing that this needs.Existing temperature regulation of mixing the water valve technology has manually and automatic two kinds.Manually temperature is regulated in the armrest sense, and the temperature that regulates is very big with the variation fluctuation of hot and cold water pressure in the pipeline.Adjusted good water temperature often becomes very uncomfortable when shower, even cold shock and scald accident take place.Automatic constant temperature valve can avoid above phenomenon to take place, but existing automatic constant temperature valve complex structure, with high costsly causes the too high and generally practicality of price.

The purpose of this utility model provides a kind of automatic thermostatic water mixing valve door design proposal simple in structure.Present technique is achieved in that and adopts spring that memory alloy material manufactures as temperature sensing and dynamical element that other adds the balance spring that a common material is made.Drive a piston between memory alloy spring and balance spring.When the mixing water temperature rises, memory alloy spring elastic force can increase the compression balance spring, drives piston to balance spring one side shifting, has so just turned down hot water inlet, simultaneously also opened greatly cooling water inlet, made water-mixing temperature decline and be tending towards setting temperature until balance.Otherwise if water-mixing temperature decline suddenly, memory alloy spring pressure can reduce, and the balance spring elongation drives piston and moves to memory alloy spring one side, makes hot water inlet open big cooling water inlet and turns down, and water-mixing temperature is risen also be tending towards setting temperature equally.If the change setting temperature only needs the decrement of adjustment spring to realize.

Figure of description is a sectional schematic, is described in detail below in conjunction with embodiment.

This thermostatic valve is mainly by forming with the bottom: overcoat 1, piston 2, memory alloy spring 3, balance spring 4, lid 5, setting temperature knob 6, swivel nut 7, mandrel 8,

seal ring

9,10, feather key 11, depotition cock 12.Valve forms two chambeies by piston 2, chamber A and chamber B.

Memory alloy spring 3 is enclosed within the fixed cover that an end on the mandrel 8 in A chamber is being pressed mandrel 8, one end contacts with piston 2, on the same mandrel 8, at the B cavity inner sleeve balance spring 4 is arranged, balance spring 4 one ends are being pressed piston 2, one end is being pressed swivel nut 7, and swivel nut 7 is connected with setting temperature knob 6 by screw thread, the direction of arrow among water route such as the figure.When water, depotition cock 12 is opened, and at first hot water enters the A chamber through the H mouth along the direction of arrow, and A chamber water temperature is raise.At this moment memory alloy spring 3 extends rapidly, promotes piston 2 compression balance springs 4, and hot water inlet H is turned down, and opens cooling water inlet C simultaneously, the A cavity temperature is adjusted to rapidly gives first setting temperature.Mixing water enters the B chamber through piston right-hand member face and flows out through tap 12 again.As want to heighten water-exit temperature, and can be rotated counterclockwise setting temperature knob 6, by power screw swivel nut 7 is moved to the left, compression balance spring 4 so is equivalent to strengthen balance spring 4 elastic force, makes piston 2 relative being moved to the left.Open greatly hot water inlet H, turned down cooling water inlet C simultaneously, A chamber water-mixing temperature is raise, thereby realized the purpose that water-exit temperature raises.Otherwise, also can realize turning down the purpose of water temperature.In case with setting temperature knob 6 set positions, valve can compensate automatically and regulate with elimination realizes constant-temperature effluent because of instantaneous flow variation among cold water or the hot water pipe to the influence of water-exit temperature by indicated value.

Temperature value can be set arbitrarily between 20 ℃-50 ℃.

Claims

1. a hot and cold water mixes the water automatic constant temperature valve, by overcoat 1, and piston 2, memory alloy spring 3, balance spring 4, lid 5, setting temperature knob 6, swivel nut 7, mandrel 8, seal ring 9,10, feather key 11, depotition cock 12 is formed, it is characterized in that piston 2 is divided into the A chamber with valve pocket, the B chamber, memory alloy spring 3 and balance spring 4 are enclosed within on the same mandrel 8, memory alloy spring 3 one ends are being pressed the fixed cover on the mandrel 8, and an end contacts with piston 2, and balance spring 4 one ends are being pressed piston 2, one end is being pressed swivel nut 7, and swivel nut 7 is connected with setting temperature knob 6 by screw thread.

2. press claims 1 described hot and cold water and mix the water automatic constant temperature valve, it is characterized in that memory alloy spring 3 is arranged among the mixed water cavity A, piston 2 is arranged in the middle of memory alloy spring 3 and the balance spring 4, can move on same mandrel 8.

3. press claims 1 described hot and cold water and mix the water automatic constant temperature valve, it is characterized in that piston 2 right sides are porose, covering 5 pairs of pistons 2 has position-limiting action.

4. press claims 1 described hot and cold water and mix the water automatic constant temperature valve, it is characterized in that setting temperature knob 6 has internal thread, swivel nut 7 has outside thread, and turn knob 6 can drive swivel nut 7 and move along mandrel 8.

5. press claims 1 described hot and cold water and mix the water automatic constant temperature valve, it is characterized in that, but this valve level use and can vertically use again, can with leading one, or be arranged separately in the pipeline.