The temperature controlled valve core that a kind of hot and cold water intake is exchanged
Technical field
The present invention relates to water valve, relate to the temperature controlled valve core that a kind of hot and cold water intake is exchanged particularly.
Background technique
The main structure of the temperature controlled valve core that uses in the existing constant-temperature tap (particularly constant temperature shower faucet) comprise one have cooling water inlet, hot water inlet and mixed water exports valve body, be located at piston in the valve body, one that is connected with this piston, the push rod and the spring that comprise temperature-sensitive end and the flexible thermosensitive element of holding, this thermosensitive element of difference butt slidably, and the adjustable lever that is connected with this push rod.The temperature-sensitive end of thermosensitive element is positioned at mixed water exports; Flexible end is connected with said push rod, when the water temperature of mixed water exports changes, makes its corresponding expansion of flexible end or contraction behind the temperature-sensitive end temperature-sensitive of thermosensitive element; Thereby promoting said piston moves; Regulate the area ratio of cooling water inlet and hot water inlet, thereby change the ratio of cold and hot flow of inlet water, thereby reach constant water-exit temperature.
Yet; As shown in fig. 1; Existing thermosensitive element 3 has a temperature-sensitive end and a flexible end, and this thermosensitive element interlock is provided with the piston 6 ' that can slide at said valve inner, and through a spring 7 axial limitings; Hot water or cold water's import is separately positioned on the two ends of said piston 6 ', and is covered by piston 6 ' part.Because the temperature-sensitive end of thermosensitive element needs to contact with the mixing water outlet fully; When temperature raises; The flexible end of thermosensitive element 3 expands, extrusion spring 7, and piston 6 ' is to moving near an end that mixes water outlet; Cause reducing, increase away from the end mouth of a river water inlet area that blends water cavity near the end mouth of a river water inlet area that blends water cavity; And when temperature reduced, the flexible end of thermosensitive element 3 shrank, spring 7 diastoles, and piston 6 ' causes increasing near the end mouth of a river water inlet area that blends water cavity to moving away from an end that mixes water outlet, reduces away from the end mouth of a river water inlet area that blends water cavity.Therefore; Existing temperature controlled valve core needs to open hot water inlet 11 near mixed water exports 13 places when being provided with; Cooling water inlet 12 is opened away from mixed water exports 13 places, and as shown in Figure 2, the shell 9 of temperature controlled valve core is provided with and said hot water inlet 11, cooling water inlet 12, hot water inlet 91, cooling water inlet 92, mixed water exports 93 that mixed water exports 13 is corresponding respectively; Because hot water inlet 11 is arranged near mixed water exports 13, need to use long hot water pipeline that hot water is imported in the temperature controlled valve core.Therefore, in practical application, use the thermostat valve of this structure to have following drawback: 1, the hot water pipeline of length can heat tap, and there is the possibility of scalding in the user when the contact tap; 2, the hot water in the hot water pipeline that is provided with in abutting connection with mixed water exports can be mixing the water outlet heating, and it is too high to cause blending coolant-temperature gage.
Summary of the invention
The temperature controlled valve core that the present invention provides a kind of hot and cold water intake to exchange is to solve the problems referred to above that exist in the existing temperature controlled valve core.Temperature controlled valve core provided by the invention is exchanged the hot and cold water inlet position of existing temperature controlled valve core, and cooling water inlet is provided with near blending the mouth of a river, both can prevent the too high scald that causes of leading temperature, and may command to blend the water-exit temperature at the mouth of a river suitable.
The present invention adopts following technological scheme:
The temperature controlled valve core that a kind of hot and cold water intake is exchanged is characterized in that comprising:
One valve body, it has cooling water inlet, hot water inlet and mixed water exports, and said cooling water inlet is positioned at the side near mixed water exports, and described hot water inlet is positioned at the side away from mixed water exports;
One has the thermosensitive element of temperature-sensitive end and flexible end, and this thermosensitive element compresses the device axial limiting through an elasticity, and its temperature-sensitive end is used for the temperature information of perception mixing water outlet near mixed water exports, and it is conveyed to flexible end.
One be provided with, and be located at the piston apparatus of said valve inner slidably with thermosensitive element interlock; Form a cavity on this piston apparatus; The common hot water passageway that forms in the upper end of this cavity and the lower end of hot water inlet; The common cold water pathway that forms in the lower end of this cavity and the upper end of cooling water inlet, this cavity inboard are provided with the through hole that a cooling water and hot water flow into mixed water exports simultaneously.
After adopting said structure, hot water or cold water's import lays respectively at the two ends of cavity, and adjusts the water inlet area of hot water or cold water's import through moving up and down of cavity; When the temperature of mixed water exports is too high, at this moment, cause flexible end to expand behind the thermosensitive element temperature-sensitive end temperature-sensitive near the mixed water exports setting; Extruding elasticity compresses device, and the cavity that orders about piston apparatus moves to the mixed water exports direction, at this moment; The distance of cavity and hot water inlet reduces, and hot water water inlet area reduces, simultaneously; The then corresponding increase of the distance of cavity and cooling water inlet, cold water water inlet area increases, and comes suitably to increase the water-exit temperature that reduces mixed water exports with this; Relative therewith, to cross when low in the temperature of mixed water exports, the flexible end of thermosensitive element shrinks, and elasticity compresses the device diastole; The cavity that orders about piston apparatus moves to the opposite direction of mixed water exports, and at this moment, the distance of cavity and cooling water inlet reduces; Cold water water inlet area reduces, simultaneously, and the then corresponding increase of the distance of cavity and hot water inlet; Hot water water inlet area increases, and comes suitably to increase the water-exit temperature of mixed water exports with this, and reaches the effect of water termostat.
In the temperature controlled valve core that aforementioned hot and cold water intake is exchanged, described cavity is the annular cavity that a part covers said cooling water inlet and hot water inlet.
In the temperature controlled valve core that aforementioned hot and cold water intake is exchanged, said piston apparatus reaches the upper piston that is fixedly connected with this lower piston by the lower piston that is fixedly connected with thermosensitive element to be formed, and is connected with valve seal separately; Said annular cavity is formed by said upper piston and said lower piston jointly, and said through hole is arranged on the said lower piston.
In the temperature controlled valve core that aforementioned hot and cold water intake is exchanged, said cooling water inlet and hot water inlet are annular water intake, and are positioned on the different axis height of valve body.
In the temperature controlled valve core that aforementioned hot and cold water intake is exchanged, the zone between inboard corresponding cooling water inlet of valve body and the hot water inlet forms annular protrusion, and said annular cavity is spacing through this annular protrusion.
In the temperature controlled valve core that aforementioned hot and cold water intake is exchanged, said elasticity compresses device and comprises a lower spring, a push rod and an elastic force controlling device; The telescopic movable of said lower spring and said thermosensitive element are synchronous, and the one of which end is connected to the valve body bottom downwards, and the other end upwards is connected to thermosensitive element or lower piston; The lower end of said push rod is connected to the flexible end of thermosensitive element, and the upper end then is connected to the lower end of an elastic force controlling device.
In the temperature controlled valve core that aforementioned hot and cold water intake is exchanged, said elastic force controlling device comprises a push rod chamber loam cake and the adjustable lever that push rod chamber, that a upper spring, supplies push rod to slide therein is fixedly connected with the push rod chamber; Said upper spring one end is connected to push rod downwards, and the other end upwards is connected to push rod chamber loam cake; Said push rod chamber can move up and down in valve body, and links with said adjustable lever; Said adjustable lever is upward through valve body, and is arranged on the valve body upper end rotationally through a collar.
The rotation adjusting bar can make the push rod chamber that is threaded with it move up or down, and changes the scalable length of the flexible end of thermosensitive element with this, thereby reaches the function of regulating different water-exit temperatures.
In the temperature controlled valve core that aforementioned hot and cold water intake is exchanged; Upper spring has protective action to thermosensitive element; I.e. prevention thermosensitive element generation permanent deformation when water-exit temperature is too high, the use principle of this part-structure is a content well known in the prior art, writes no longer in detail at this.
Mention among the present invention " on ", the direction when D score uses with temperature controlled valve core usually is as the criterion, and is D score side with the mixed water exports position promptly, the adjustable lever present position is the top.
Only if name especially, the implication of employed here all technology and scientific terminology is identical with the affiliated common implication of understanding of technical field those skilled in the art of the present invention.Equally, all can introduce the present invention as a reference at this publication of mentioning, patent application, patent and other reference.
This shows, compare, the present invention includes the piston apparatus that is provided with, also is located at slidably said valve inner with the thermosensitive element interlock with existing technology; Form a cavity on this piston apparatus, the common hot water passageway that forms in the upper end of this cavity and the lower end of hot water inlet, the common cold water pathway that forms in the lower end of this cavity and the upper end of cooling water inlet; This cavity inboard is provided with the through hole that a cooling water and hot water flow into mixed water exports simultaneously, and at this moment, hot water or cold water's import lays respectively at the two ends of cavity; And adjust the water inlet area of hot water or cold water's import through moving up and down of cavity, be in swelling state at thermosensitive element, when compressing lower spring; Cavity moves down; At this moment, the water inlet area that is positioned at the cooling water inlet of lower end increases, and the water inlet area that is positioned at the hot water inlet of upper end reduces; Be in contraction state at thermosensitive element, when spring stretched, cavity moved up, and at this moment, the water inlet area that is positioned at the hot water inlet of upper end increases, and the water inlet area that is positioned at the cooling water inlet of lower end reduces.Therefore, the present invention can exchange the position of hot water or cold water's import, and cooling water inlet is arranged on the position near mixed water exports, both can prevent the too high scald that causes of leading temperature, and may command to blend the water-exit temperature at the mouth of a river suitable.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the temperature controlled valve core of existing technology;
Fig. 2 is the sectional structure schematic representation after the temperature controlled valve core of existing technology adds casing;
Fig. 3 is the sectional structure schematic representation of temperature controlled valve core of the present invention;
Fig. 4 is the sectional structure schematic representation of temperature controlled valve core of the present invention after adding casing.
Wherein, valve body 1, adjustable lever 2, thermosensitive element 3, push rod 4, push rod chamber 5, piston apparatus 6, lower spring 7, upper spring 8, shell 9, hot water inlet 11, cooling water inlet 12, mixed water exports 13, on overlap 14, middle cover 15, trap 16, collar 21, push rod chamber loam cake 51, lower piston 61, upper piston 62, annular cavity 63, through hole 64, hot water inlet 91, cooling water inlet 92 and mixed water exports 93
Embodiment
Embodiment of the present invention is described with reference to the accompanying drawings.
The temperature controlled valve core that a kind of hot and cold water intake is exchanged, with reference to Fig. 3, main structure comprises valve body 1, adjustable lever 2, thermosensitive element 3, push rod 4, push rod chamber 5 and piston apparatus 6.
Valve body 1 comprises cover 14, middle cover 15 and trap 16 from top to bottom successively, on overlap 14 upper ends, 16 the lower ends of trapping through cover 15 in being threadedly connected to through cover 15 in being threadedly connected to.Trap and form a mixed water exports on 16, middle cover 15 is provided with the annular heat water inlet 11 and annular cooling water inlet 12 that is positioned at different axis height, and hot water inlet 11 is positioned at the top of cooling water inlet 12.
Piston apparatus 6 is located at the inside of valve body 1 slidably, and it is made up of lower piston that is threaded each other 61 and upper piston 62, and lower piston 61 is connected with valve seal with upper piston 62 separately.Lower piston 61 and the upper piston 62 common annular cavities 63 that form a part of cover heating water inlet 11 and cooling water inlet 12; Form the through hole 64 that cooling water and hot water flow into mixed water exports 13 simultaneously on the lower piston 61 of annular cavity 63 inboards; The relative size of can regulate hot water inlet 11 and cooling water inlet 12 when annular cavity 63 moves up and down, the ratio thereby the change hot water or cold water is intake.Zone on the middle cover 15 between corresponding hot water inlet 11 and the cooling water inlet 12 forms the annular protrusion that roughly cooperates with annular cavity 63, and annular cavity 63 limits the position through this annular protrusion.
Thermosensitive element 3 is threaded with lower piston 6, and its lower end is the temperature-sensitive end, and the upper end is flexible end.The temperature-sensitive end of this thermosensitive element 3 is arranged in the mixed water exports 13 of 16 formation of trapping, when the temperature-sensitive end is sensed the mixing water temperature of mixed water exports 13, and corresponding the elongating or shortening of its flexible end.
Thermosensitive element 3 compresses the device axial limiting through elasticity.This elasticity compress device by lower spring 7, push rod 4, upper spring 8, supply the push rod chamber 5 that push rod 4 slides therein, push rod chamber loam cake 51 and the adjustable lever 2 that is fixedly connected with push rod chamber 5 to form.Wherein, the telescopic movable of lower spring 7 and thermosensitive element 3 are synchronous, and the one of which end is connected to 16 the bottom of trapping downwards, and the other end upwards is connected to lower piston 7; The lower end of push rod 4 is connected to the flexible end of thermosensitive element 3, and the upper end is connected to the lower end of upper spring 8, and the upper end of upper spring 8 then is connected to push rod chamber loam cake 51.Push rod chamber 5 can move up and down in valve body 1, and links with adjustable lever 2; Adjustable lever 2 is upward through valve body 1, and is limited in valve body 1 upper end through a collar 21, and it can rotate with respect to valve body 1.Rotation adjusting bar 2 can make the push rod chamber 5 that is threaded with it move up or down, and changes the scalable length of thermosensitive element 3 flexible ends with this, thereby reaches the function of regulating different water-exit temperatures.
Shown in Fig. 4; This spool also comprises a shell 9; This shell 9 is assemblied in each part mentioned above wherein, and shell 9 is provided with and said hot water inlet 11, cooling water inlet 12, hot water inlet 91, cooling water inlet 92, mixed water exports 93 that mixed water exports 13 is corresponding respectively.
Shown in Fig. 3 and Fig. 4, when the temperature of mixed water exports 13 is too high, at this moment; Cause flexible end to expand behind the thermosensitive element 3 temperature-sensitive end temperature-sensitives near mixed water exports 13 settings, extruding lower spring 7, the annular cavity 63 that orders about piston apparatus 6 moves to mixed water exports 13 directions; At this moment, annular cavity 63 reduces with the distance of hot water inlet 11, and hot water water inlet area reduces; Simultaneously; The then corresponding increase of distance of annular cavity 63 and cooling water inlet 12, cold water water inlet area increases, and comes suitably increase to reduce the water-exit temperature of mixed water exports 13 with this; Relative therewith, to cross when low in the temperature of mixed water exports 13, thermosensitive element 3 flexible ends shrink lower spring 7 diastoles; The annular cavity 63 that orders about piston apparatus 6 moves to the opposite direction of mixed water exports 13, and at this moment, annular cavity 63 reduces with the distance of cooling water inlet 12; Cold water water inlet area reduces, simultaneously, and the then corresponding increase of distance of annular cavity 63 and hot water inlet 11; Hot water water inlet area increases, and comes suitably to increase the water-exit temperature of mixed water exports 13 with this, and reaches the effect of water termostat.
The foregoing description is a preferred implementation of the present invention; But mode of execution of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.