CN1120141A

CN1120141A - Combined tap

Info

Publication number: CN1120141A
Application number: CN94106204.XA
Authority: CN
Inventors: 榎正寿; 德永修; 伊藤节雄; 伊藤正昭; 竹内博文
Original assignee: Toto Ltd
Current assignee: Toto Ltd
Priority date: 1993-06-30
Filing date: 1994-06-01
Publication date: 1996-04-10
Anticipated expiration: 2014-06-01
Also published as: CN1058078C

Abstract

The combined water tap has a valve part movable relative to casing to change the ratio of cold water to hot water. A temp.-sensing spring applys a force to the movable valve part and a bias spring applys another force to it in different direction. The temp.-sensing spring in mixed water can change its elastic coefficient according to water temp. The movable valve part is at a position where two forces applied by said two springs are balanced, and the mixed water has proper temp.

Description

Combined tap

The present invention relates to a kind of combined tap, more specifically to a kind of combined tap that is used for mixed hot water and cold water, it pushes by the spring that adopts the temperature variant material of a kind of spring constant to make, and removable valve member reaches.

The example of the combined tap of being advised in Japanese Utility Model publication number 61-44062 is a kind of combined tap of automatic temperature-adjusting control, wherein adopted the temperature variant marmem of a shape, be used for pushing a removable valve member, changing the ratio of hot water-cold water, thereby control the mixing temperature of hot and cold water equably.When this marmem after presenting a reservation shape under the specified temp environment, can under another temperature, make physics and change to another shape with changing.But, when this alloy is in above-mentioned specified temp, can return to original shape.The thermal capacity of this marmem is less than the temperature-sensing element (device) (for example, thermoplastic material) of routine, and is also comparatively responsive to temperature variation.

In above-mentioned known combined tap, an end of described removable valve member is pushed by a marmem roll coil of strip, and the other end is pushed by a helical spring.This marmem roll coil of strip directly is exposed in the mixing water of hot and cold water.Under a specified temp, have one fixedly the marmem roll coil of strip of coil length play following function according to the temperature variation of mixing water.

When mixing water was in steady state under a setting temperature, described removable valve member did not move, but rested on the position that the marmem roll coil of strip and helical spring balance each other.The temperature that makes mixing water when change of external conditions is when the aforementioned stable attitude changes to described specified temp, and this memory alloy can produce the shape restoring force and return to fixed length under the above-mentioned specified temp.This shape restoring force has been destroyed the equilibrant of marmem and helical spring, thereby drives removable valve member towards helical spring or marmem.When the length of the marmem roll coil of strip was done to set continuously in certain temperature range according to preset temperature, when the mixing water temperature in this temperature range changed, the marmem roll coil of strip will produce the shape restoring force and change the length of the roll coil of strip.Corresponding to the temperature variation of mixing water, removable valve member thereby also do displacement so that change the hot and cold water ratio, thereby makes the mixing water temperature remain on the value of setting.

This marmem is generally comparatively expensive, and therefore the quantity of material that adopts preferably lacks.But the spring constant of the responsive to temperature spring of being made up of small quantity of material is less than common spring, does not possess enough driving forces and drives removable valve member.This responsive to temperature spring with less spring constant to the supporting force of removable valve member a little less than, even a slight torsion also can make described moving advise the valve member deflection, thereby destroy sealing effect, therefore can not very accurately control the temperature of mixing water.

Comparatively responsive by the spring that this memory alloy is made to the response of the mixing water temperature of hot and cold water, in the time of in this shape memory alloy spring is exposed to without well-mixed hot and cold water, the suffered load of its each several part is not of uniform size, thereby influence is to the stable control of mixing water temperature.

The purpose of this invention is to provide a kind of novel combined tap, having the responsive to temperature spring that the marmem of less spring constant makes by employing stably provides the mixing water with set temperature value.

Involved in the present invention is a kind of combined tap, is used to mix high-temperature water and low temperature water, and makes and have the predetermined temperature value mixing water and flow through this combined tap, comprises;

A shell spare has the hot water mouth who is used to provide high-temperature water, a cold water outlet that is used to provide low temperature water, and a slip chamber that is connected with cold water outlet with above-mentioned hot water mouth;

A removable valve member, have an internal surface and an outer surface, this removable valve member is installed among the slip chamber of being located in the above-mentioned shell spare in the mode that can slide, is used to regulate hot water that flows through above-mentioned hot water mouth and the mixed proportion that flows through the cold water of above-mentioned cold water outlet;

A responsive to temperature spring, have first end and the second end, mainly make by the material that can within certain temperature range, change its spring constant along with variation of temperature, when the true temperature of mixing water is higher than set temperature value, this responsive to temperature spring is oppressed removable valve member on first direction, so that reduce the ratio of high-temperature water and low temperature water;

A bias spring is used on second direction the compressing described removable valve member opposite with above-mentioned first direction; And

A separator has first and second ends, between above-mentioned removable valve member and responsive to temperature spring, makes the first end of responsive to temperature spring and certain position at a distance of predetermined spacing, and high-temperature water mixes with the low temperature water on this position.

According to this most preferred embodiment, described separator has one and the contacted valve casting die of removable valve member at its first end, has the spring bearing piece of the first end that is used for the responsive spring of support temperature in its other end.The valve casting die that forms at the first end of separator is by outstanding on the formed spring bearing piece of the second end of separator, and has a plurality of shanks that distribute with predetermined spacing on a circumferencial direction along the internal surface of removable valve member.In above-mentioned a plurality of shank some are preferably in the face of formed cold water outlet on shell spare.Each shank all forms a fin, is used for guiding the low temperature water current to pass through cold water outlet on a circumferencial direction along the internal surface of removable valve member.This valve casting die preferably includes six to eight fins that distribute with uniform distances in a circumferential direction, or comprises the fin that distributes with different spacing in a circumferential direction.The back one situation under, described spacing along with and cold water outlet between distance and increase proportionally.

Another program of the present invention provides a kind of combined tap, is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A shell spare has a hot water mouth who is used to provide high-temperature water, a cold water outlet that is used to provide low temperature water, and a slip chamber that is connected with cold water outlet with above-mentioned hot water mouth;

A responsive to temperature spring, mainly make by the material that can within certain temperature range, change its spring constant along with variation of temperature, when the true temperature of mixing water is higher than set temperature value, this responsive to temperature spring is oppressed removable valve member on first direction, so that reduce the ratio of high-temperature water and low temperature water;

One is installed on the certain position towards the bifurcated spare of cold water outlet, is used to change the flow direction from the low temperature water of cold water outlet.

In a preferable use occasion, this bifurcated spare comprises one or several fins, is used for guiding the low temperature water current to fill along the internal surface of removable valve member and passes through cold water outlet on a circumferencial direction.

Another scheme of the present invention provides a kind of combined tap, is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A bias spring is used for the described removable valve member of compressing on the second direction opposite with above-mentioned first direction; And

One is installed in above the certain position to hot water mouth's bifurcated spare, is used to change the flow direction from hot water mouth's high-temperature water.

According to this most preferred embodiment, bias spring is supported by a bias spring bearing piece, and this bearing piece and described bifurcated spare have formed an integral body.This bifurcated spare can comprise one or more fins, is used for guiding high-temperature water to flow through the hot water mouth on a circumferencial direction along the internal surface of removable valve member.

According to a kind of combined tap of the present invention, it comprises:

A cylindrical mixing chamber is used to connect hot water mouth that high-temperature water is provided and the cold water outlet that low temperature water is provided;

A removable valve member is used to control from hot water mouth's high-temperature water and/or from the flow of the low temperature water of cold water outlet, so that regulate high-temperature water and low temperature water mixed proportion;

Responsive to temperature spring with first and second ends and mixes high-temperature water and the formed mixing water of low temperature water contacts mutually in the chamber that mixes, this responsive to temperature spring has the spring constant that the temperature with described mixing water changes;

Actuator is used for handling described removable valve member according to the pressure of responsive to temperature spring;

A bifurcated spare is used on a circumferencial direction of described cylindrical mixing chamber guiding from the low temperature water current of cold water outlet with from hot water mouth's high-temperature water current, and the water current that mix at the upstream extremity of responsive to temperature spring.

In a kind of preferred example, the responsive to temperature spring is fixed at its second end, comes removable valve member is applied a pressure and the function of a drive unit with its first end.This combined tap may further include a bias spring, is used on opposite with above-mentioned first direction second direction, removable valve member being exerted pressure, and a preload controlling mechanism, be used to regulate the preload that imposes on bias spring.In another kind of preferred example, combined tap further comprises a shell spare, and its wall has formed mixing chamber and held the valve chamber of removable valve member, responsive to temperature spring and bias spring.This shell spare is connected to one in the mode that can pull down and has formed on the parts of hot water mouth or cold water outlet on it.

According to this most preferred embodiment, this combined tap further comprises a separator, is used to make between responsive to temperature spring and the removable valve member keep predetermined spacing, and has formed described bifurcated spare on separator.This separator has a guide, and it contacts with shell spare wall towards mixing chamber in the mode of sliding on a plurality of points.

A removable valve member, this removable valve member is installed among the slip chamber of being located in the above-mentioned shell spare in the mode that can slide, is used to regulate hot water that flows through above-mentioned hot water mouth and the mixed proportion that flows through the cold water of above-mentioned cold water outlet;

A bias spring is used on second direction the compressing described removable valve member opposite with above-mentioned first direction;

A cylindrical runner spare places among the responsive to temperature spring, is used for forming a spring runner chamber that holds the responsive to temperature spring together with the inwall of described shell spare;

A spring chamber conduit road is used for and will be directed among the described spring runner chamber from hot water mouth's high-temperature water with from the mixing water of the low temperature water of cold water outlet.

According to a kind of responsive to temperature spring and contacted optimum structure of mixing water of making, this combined tap comprises that further places the separator between removable valve member and the responsive to temperature spring, is used to make position that the first end of responsive to temperature spring mixes with high-temperature water and low temperature water at a distance of predetermined distance.Described cylindrical runner spare and spring chamber pipeline form on this separator.In another kind of most preferred embodiment, described spring chamber pipeline with a throttle orifice forms at an end of separator, and has a guide, and this guide is enlarged to downstream gradually by the upstream extremity of mixing water.

According to another kind of most preferred embodiment, combined tap comprises that further a spring with the second end that is used for the responsive spring of bearing temperature bears the responsive to temperature spring bearing piece of element, and wherein cylindrical runner spare is made on the responsive to temperature spring bearing piece.A mobile shock absorber that is used to mix water can be set in spring runner chamber.The shock absorber that should flow is included in the spirality projection that forms on the cylindrical runner spare, or is included in the spirality projection that forms on the inwall of shell spare.

A scheme more of the present invention provides a kind of combined tap, is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A removable valve member, this removable valve member is installed among the slip chamber that is located in the above-mentioned shell spare in the mode that can slide, is used to regulate hot water that flows through above-mentioned hot water mouth and the mixed proportion that flows through the cold water of above-mentioned cold water outlet;

A responsive to temperature spring bearing piece, the corresponding spring of the second end shape with its shape and responsive to temperature spring bears recess.

But described responsive to temperature spring bearing piece can comprise a bifurcated spare, has a spiral chute that is used to hold the responsive to temperature spring, perhaps comprises a resin piece, is used to insert the second end of responsive to temperature spring and makes it to be molded together.In another kind of most preferred embodiment, responsive to temperature spring and separator form an integral body, this separator between removable valve member and responsive to temperature spring, between the first end that is used to make the responsive to temperature spring and the position that high-temperature water and low temperature water mix at a distance of predetermined spacing.

The present invention also relates to a kind of combined tap, be used to mix high-temperature water and low temperature water, and make mixing water flow through this combined tap, comprising with predetermined temperature value:

A responsive to temperature spring bearing piece, comprise a flat board and a spring bearing piece that is used for the second end of the responsive spring of support temperature that has been formed centrally the center support element therein, described responsive to temperature spring bearing piece is supported on the described shell spare by described center support element, so that the responsive to temperature spring can be rotated with respect to shell spare.

In a kind of optimum structure, the center support element of described responsive to temperature spring bearing piece comprises that a projection and one are used to the recess of supporting that this is protruding.

According to this most preferred embodiment, the center support element of responsive to temperature spring bearing piece is mainly made by the hardened resin material, and the spring of responsive to temperature spring bearing piece bears element and then mainly made by elastic material.

A bias spring has first end and second end, is used for the described removable valve member of compressing on the second direction opposite with above-mentioned first direction; And

A bias spring bearing piece, comprise that a flat board that is formed centrally the center support element therein and one are used to support the spring bearing piece of the first end of bias spring, described bias spring bearing piece is supported on the described shell spare by described center support element, so that the bias spring bearing piece can be rotated with respect to shell spare.

In a kind of most preferred embodiment, the center support element of bias spring bearing piece comprises that a projection and one are used to the recess of supporting that this is protruding.According to this most preferred embodiment, the center support element of bias spring bearing piece is mainly made by the hardened resin material, and the spring of bias spring bearing piece bears element and then mainly made by elastic material.

A responsive to temperature spring bearing piece, have a spring that is used for the second end of the responsive spring of support temperature and bear element, and one is born the outstanding valve casting die of element to what the central position of removable valve member was exerted pressure from described spring on glide direction.

In accordance with yet a further aspect of the invention, provide a kind of combined tap, be used to mix high-temperature water and low temperature water, and make mixing water flow through this combined tap, comprising with predetermined temperature value:

A bias spring has first and second ends, and this bias spring is exerted pressure to removable valve member on the second direction opposite with above-mentioned first direction.

A bias spring bearing piece, the spring with the first end that is used to support bias spring bears element, and one to the central position of removable valve member on glide direction, exert pressure from the outstanding valve casting die of described spring bearing piece.

A bias spring is used for the described removable valve member of compressing on the second direction opposite with above-mentioned first direction;

A bullport that passes this removable valve member in removable valve member upper edge one glide direction; And

A guide that is fixed on the described shell spare, and slidably be installed in the described bullport, be used to support removable valve member.

A guide hump that stretches to an opening of hot water mouth or cold water outlet is used for contacting with the circumference of removable valve member, so that guide this removable valve member on glide direction.

In a kind of preferred structure, the formation of described guide hump is to be used for guiding removable valve member a joint line inboard, and this joint line is that the circumference along removable valve member forms on a position of taking a seat.

The invention still further relates to a kind of combined tap, be used to mix high-temperature water and low temperature water, and make mixing water flow through this combined tap, comprising with predetermined temperature value:

A responsive to temperature spring bearing piece comprises that a spring that is used for the second end of the responsive spring of support temperature bears element, and the cylindrical elements among slip chamber that is inserted into described shell spare;

Be used for responsive to temperature spring bearing piece is fixed to fixed block on the shell spare.

According to a kind of scheme of the present invention, described fixed block comprises a recess that forms on shell spare, and being used for of forming on responsive to temperature spring bearing piece the engage detent that is meshed with described recess.According to another kind of scheme of the present invention, described fixed block comprises a slit that forms on shell spare, the groove that on the position corresponding to this slit of responsive to temperature spring bearing piece, forms, and the stop ring that is meshed with above-mentioned slit and groove, be used for preventing that responsive to temperature spring bearing piece from being got off by the landing of described slip chamber.

According to a kind of most preferred embodiment, described responsive to temperature spring bearing piece and cold water valve seat spare are fixed together, and the latter is installed in the slip chamber of shell spare, is used to constitute cold water outlet, and have have a cold water valve seat on the position that removable valve member is located in.

One first helical thread portion that forms at opening portion of described shell spare;

A spring bearing piece, has second helical thread portion that is meshed with described first helical thread portion, by the engagement of second helical thread portion and first helical thread portion, described spring bearing piece is fixed on opening one end of above-mentioned shell spare, and the second end of the responsive spring of bearing temperature; And

A slider that is installed between spring bearing piece and the responsive to temperature spring, this slider further comprises a slidingsurface with low coefficient of friction, and contacts with described spring bearing piece and responsive to temperature spring.

The invention still further relates to a kind of combined tap, it comprises:

A cylindrical mixing chamber is with the hot water mouth that high-temperature water is provided and provide the cold water outlet of low temperature water to be connected;

A removable valve member is used to control from hot water mouth's hot water and/or from the flow of the cold water of cold water outlet, so that regulate the mixed proportion of high-temperature water and low temperature water;

A responsive to temperature spring contacts with the mixing water of mixed high-temperature water and low temperature water in mixing chamber, and this responsive to temperature spring has the spring constant that the temperature with mixing water changes;

Be used on first direction, driving pro rata the drive unit of described removable valve member with the pressure of responsive to temperature spring;

A cylindrical runner spare that is positioned at described responsive to temperature spring inboard is used for internal surface with shell spare and forms a spring runner chamber that the responsive to temperature spring is housed in it together;

A spring chamber pipeline pipe is used for and will be directed among the described spring runner chamber from hot water mouth's high-temperature water with from the mixing water of the low temperature water of cold water outlet.

According to these preferred embodiments, combined tap further comprises a bias spring, be used on the second direction opposite, removable valve member being exerted pressure with described first direction, and a preload controlling mechanism, be used to regulate the preload that is applied on the bias spring.According to another scheme of the present invention, this combined tap further comprises a shell spare, and its wall has formed mixing chamber and has been used to hold the valve chamber of removable valve member, responsive to temperature spring and bias spring.This shell spare is connected with the parts with cold water outlet or hot water mouth in the mode that can pull down.Described cylindrical runner spare and spring chamber pipeline form on shell spare wall with integral way.

The invention still further relates to a kind of combined tap, move a removable valve member by a helical spring expansion of responsive to temperature and contraction, be used to make high-temperature water and low temperature water to mix, and make the mixing water that flows through combined tap have the temperature of setting, described responsive to temperature spring is mainly made by nickel one titanium alloy, and has the spring constant that is directly proportional with temperature under following condition:

Transformation initial temperature when ℃ wherein Ms and Mf represent to cool off respectively Ms≤70 ℃, Mf 〉=10 ℃, Ms-Mf 〉=15 and change final temperature.

The connection strain of this responsive to temperature spring is represented with following formula:

R=(d ST/ π nD) 100% (1) wherein d, ST, n and D represents the line footpath of responsive to temperature spring, the stroke of removable valve member, the number of turns of responsive to temperature spring and the middle footpath of responsive to temperature spring respectively.

Described connection strain r more fortunately within 0.6-1.2% the scope, is preferably within 0.6-0.8% the scope within 0.6-1.4% scope.Described removable valve member can be supported between responsive to temperature spring and the bias spring slidably, gives the responsive to temperature spring so that will connect Stress Transfer.

To the function and the effect of combined tap of the present invention be described in detail below.

In combined tap of the present invention, a removable valve member is installed among the slip chamber of a shell spare in the mode that can slide, is used to change from hot water mouth's high-temperature water with from the mixed proportion of the low temperature water of cold water outlet.A responsive to temperature spring is exerted pressure to an end of removable valve member, and a bias spring is exerted pressure to the other end of removable valve member.The responsive to temperature spring is along with the temperature of mixing water changes its spring constant, so that the position that the spring force that makes removable valve member move to the spring force of responsive to temperature spring and bias spring balances each other, thereby the temperature of mixing water is controlled to set temperature value.

A kind of typical mode is that a separator is installed between removable valve member and responsive to temperature spring.This separator makes position that the responsive to temperature spring mixes with high-temperature water and low temperature water at a distance of a predetermined spacing.This structure can contact the responsive to temperature spring with the mixing water through well-mixed high-temperature water and low temperature water, thereby guarantees the stable slip of removable valve member.

According to above-mentioned these preferred embodiments of the present invention, have one at an end of described separator and be used for valve casting die that removable valve member is exerted pressure, have a spring bearing piece that is used for the responsive spring of support temperature at its other end.This valve casting die can comprise a plurality of shanks of being separated by with predetermined spacing along the internal surface of removable valve member on a circumferencial direction.This shank applies equal power along its internal surface to removable valve member.Some shanks are faced the cold water outlet that forms on shell spare, so that separate the low temperature water current from cold water outlet, and quicken the mixing of low temperature water and high-temperature water.

Each shank can form a fin, is used for guiding in a circumferential direction the low temperature water current from cold water outlet.This fin make from hot water mouth's high-temperature water by low temperature water around, and mix with the low temperature water subsequently, high-temperature water can fully mix with low temperature water like this.This valve casting die preferably includes six to eight fins to be equally spaced in a circumferential direction.

In another kind of most preferred embodiment, this valve casting die comprises six to eight fins that distribute with different spacing in a circumferential direction.In this case, this spacing is directly proportional with distance apart from cold water outlet.The cold water current flow through narrower spacing in the high-flow area near cold water outlet, and flow through the spacing of broad in the low-speed region away from cold water outlet.This structure makes the low temperature water of substantially the same flow flow through runner between each fin, thereby quickens the even mixing of low temperature water and high-temperature water.

According to another kind of structure, can be on shell spare, rather than on separator, form or install a bifurcated spare, for example a plurality of shanks or fin.In this structure, this bifurcated spare is also arranged in the face of cold water outlet, so that separation is from the low temperature water current of cold water outlet.

Described bifurcated spare (such as shank and fin) can form on shell spare or bias spring, in the face of the hot water mouth, can separate the high temperature current from the hot water mouth, mixes with the even of low temperature water thereby quicken high-temperature water.

Described responsive to temperature spring changes its spring constant according to the temperature of the mixing water of hot water that flows through removable valve member and cold water.Drive unit becomes the driving force that is used to drive removable valve member with the change transitions of spring constant, so that move removable valve member, thereby stably controls the temperature of mixing water.The responsive to temperature spring is to the responsive to temperature of mixing water, and has response fast, so that accurately control the temperature of mixing water.Yet in the time of in the responsive to temperature spring is exposed to without well-mixed water, this quick response can cause a kind of circulating phenomenon, and it changes the temperature and the flow of mixing water periodically.According to these preferred embodiments, at least the upstream extremity at the responsive to temperature spring is provided with a bifurcated spare, be used on a circumferencial direction of the internal surface of mixing chamber, separating hot water current, cold water current or mixing water current, thereby prevent the non-uniform temperature of current.The responsive to temperature spring can be installed on the position of leaving the mixing water sprue, thereby prevents the influence of the external disturbance that produces owing to the mixing water variation in pressure.The responsive to temperature spring can directly not play a part to provide driving force to removable valve member, but as a temperature transducer.This drive unit is accepted the expansion or the contraction of responsive to temperature spring, and directly removable valve member is applied a driving force.Under these circumstances, can adopt tiny and more cheap responsive to temperature spring with less line footpath.

In another kind of structure, an end of responsive to temperature spring is fixed, and removable valve member is exerted pressure on first direction by its other end, thereby simultaneously as temperature transducer and drive unit.This has simplified the structure of combined tap, and has dwindled its size.In such structure, must be accurately be directly proportional for the driving force of removable valve member with the temperature of mixing water.Described bifurcated spare thereby played abundant stirring high-temperature water, low temperature water or without the effect of crossing well-mixed mixing water.

Bias spring is exerted pressure to removable valve member on the second direction opposite with above-mentioned first direction.Removable valve member thus move to the spring force of a responsive to temperature spring and position that the spring force of bias spring balances each other on.The mobile distance that has reduced between removable valve member and the responsive to temperature spring of removable valve member.In this structure, this bifurcated spare has played responsive to temperature spring and the contacted effect of mixing water after fully mixed of making effectively.The responsive to temperature spring can produce the elastic force on the direction like this, rather than the elastic force on the both direction.

Regulate the preload of bias spring by a preload controlling mechanism, just can change the setting temperature of mixing water.The increase of preload has improved the serviceability of responsive to temperature spring, and has strengthened the sealability of removable valve member.The strain of suitably regulating the responsive to temperature spring can make the responsive to temperature spring obtain good temperature control performance.Bifurcated spare has been eliminated the temperature fluctuation of mixing water effectively, has prevented the part or the momentary variations in temperature of responsive to temperature spring, thereby the temperature control performance that has prevented the responsive to temperature spring is damaged.

According to a kind of preferred examples, combined tap comprises a shell spare, and its wall has formed a mixing chamber and a valve chamber that is used to hold removable valve member, responsive to temperature spring and bias spring.This shell spare is installed in one in removable mode and has formed on cold water outlet or hot water mouth's the parts on it.This designs simplification assembling, maintenance and to the check of each part, for example a bifurcated spare or a temperature controlling part that comprises the responsive to temperature spring.Bifurcated spare can form an integral body with the wall of described shell spare, and this will omit the labour that bifurcated spare is assembled.

And the integrally formed separator of described bifurcated spare is placed between responsive to temperature spring and the removable valve member, is used to make position that the responsive to temperature spring mixes with high-temperature water and low temperature water at a distance of a predetermined distance.Like this, with make the responsive to temperature spring can with through fully mix, have uniform temperature mixing water contact.Being used in combination of bifurcated spare and separator reduced required part count.

This separator can have a guide, and it slidably contacts with shell spare inwall towards mixing chamber on a plurality of points.This guide has determined the glide direction of separator clearly, and can move removable valve member smoothly under the situation that removable valve member generation is tilted.

According to these preferred embodiments, a cylindrical runner spare has been installed in the responsive to temperature spring, be used for forming a spring runner chamber together with the inwall of shell spare.One fluid streams of the mixing water of hot water and cold water enters spring runner chamber by a spring chamber pipeline, and contacts with the responsive to temperature spring subsequently.Therefore, responsive to temperature spring pucker ﹠ bloat in carried out throttling and the well-mixed mixing water of process by spring chamber.This cylindrical runner spare and spring chamber pipeline can and the separator between removable valve member and responsive to temperature spring one end form an integral body, perhaps and the responsive to temperature spring bearing piece that is positioned at the responsive to temperature spring the other end form an integral body.

Can in the spring chamber pipeline, form a throttling element, be used to strengthen the function of spring runner chamber or spring chamber pipeline.Can on spring runner chamber, form a mobile shock absorber or a spirality projection, be used to mix water.Can form the guide of an increasing at an end of separator, be used to make mixing water smoothly to flow into spring runner chamber.

The offset load of responsive to temperature spring or bias spring can make removable valve member produce, and destroys the sealing effect of removable valve member, changes the mixed proportion of hot water and cold water, thereby causes and depart from setting temperature.According to a kind of scheme of the present invention, adopted a kind of special structure to prevent that removable valve member from producing such inclination.

The bearing piece that is used for an end of the responsive spring of support temperature comprises that its shape bears recess corresponding to the spring of the above-mentioned end shape of responsive to temperature spring.This spring bears recess can support the responsive to temperature spring of its end without processing or sanding of flat in mode straight up.This responsive to temperature spring can not apply the pressure of a skew to removable valve member, thereby removable valve member is tilted, and carries out the required excellent sealing effect of temperature control exactly thereby remain.But the spring of this responsive to temperature spring bearing piece bears the combination that recess also can be a spiral chute, spiral step or separate pieces.Responsive to temperature spring bearing piece can comprise a resin piece, is used for the end insertion of responsive to temperature spring wherein and with it is molded together.Even an end of responsive to temperature spring by sanding of flat, also has a little gap at the first lap of spring with by between the end that polishes.On the spring bearing piece, be preferably formed as a recess, so that the end through polishing of the responsive spring of bearing temperature prevents to be offset owing to above-mentioned gap makes load.The responsive to temperature spring bearing piece that is used for an end of the responsive spring of support temperature can form an integral body with shell spare or separator, or mounted thereto.

According to a kind of preferred structure of the present invention, the spring bearing piece that is used for an end of the responsive spring of support temperature has dull and stereotyped shape, and its center portion has formed a center supporter.This spring bearing piece is supported by the center supporter that is positioned on the shell spare, so that can rotate with respect to shell spare.When producing the load of skew on the different piece of responsive to temperature spring, this center supporter has played the effect of the load homogenization that makes the responsive to temperature spring, thereby has prevented that removable valve member from producing.In a kind of preferred structure, the center supporter of responsive to temperature spring bearing piece comprises that a projection and one are used to the recess of supporting that this is protruding.It can be to be made by elastic material that the spring of responsive to temperature spring bearing piece bears part, and this has born than the part of heavy load it and produces bending greater than other parts, thereby makes the load homogenization.

Be used to support that the bias spring bearing piece of bias spring also can adopt similar structure, so that make the load homogenization of bias spring.

According to the another kind of preferred construction of the spring bearing piece that is used for the responsive spring of support temperature, a valve casting die bears center portion projection partly by spring, is used on the direction of sliding being exerted pressure in the center portion of removable valve member.This removable valve member only therein heart position be under pressure, and can not be subjected to any eccentric force.Support the bias spring bearing piece of bias spring also can adopt similar structure to being used to, so that a pressure is applied on the center portion of bias spring.

Be used to prevent that a kind of preferred construction that removable valve member tilts from comprising the guiding mechanism that is used to guide removable valve member slip.This guiding mechanism comprises the removable valve member bullport that for example passes removable valve member on glide direction, and is contained on the shell spare, and the guide that slidably matches with above-mentioned bullport, is used to support removable valve member.

Can on an opening part of hot water mouth or cold water outlet, form a guide hump, be used for the circumferential contact with removable valve member, prevent that removable valve member from producing in the process of sliding.In a kind of preferred structure, form this guide hump so that in a joint line side directed removable valve member, and above-mentioned joint line is to form on the seat surface that removable valve member is located in.This guide hump has prevented that effectively removable valve member and joint line from colliding.

The torsion that is applied on the responsive to temperature spring in the process among the responsive to temperature spring being installed to combined tap can produce a residual stress, makes removable valve member produce.Adopt a kind of specific structure to prevent that removable valve member from producing such inclination.Responsive to temperature spring bearing piece comprises that a spring that is used for an end of the responsive spring of support temperature bears location among the slip chamber that part and is inserted into shell spare and is fixed to cylindrical member on the shell spare by fixing device.This responsive to temperature spring bearing piece is inserted among the slip chamber simply, torsion can't be imposed on the responsive to temperature spring.According to a kind of most preferred embodiment, this fixing device comprises a recess that forms on shell spare, and an engage detent that forms on responsive to temperature spring bearing piece, is used for being meshed with above-mentioned recess.According to another kind of most preferred embodiment, this fixing device comprises a slit that forms on shell spare, a groove that forms on responsive to temperature spring bearing piece, and a stop ring that is meshed with above-mentioned slit and groove are used for preventing that responsive to temperature spring bearing piece from coming off from the slip chamber.Because the cylindrical member of responsive to temperature spring bearing piece is inserted into removable valve member and does among the slip chamber of slip, this spring bearing piece can form an integral body with the cold water valve seat that removable valve member is located in.

This responsive to temperature spring bearing piece can be screwed on the opening of shell spare, and the responsive to temperature spring is not applied torsion.Its friction factor is installed between spring bearing piece and the responsive to temperature spring less than the slider of the friction factor of responsive to temperature spring and responsive to temperature spring bearing piece.This slider slides with respect to the responsive to temperature spring in the process that the spring bearing piece is assembled in the shell spare, thereby has prevented from torsion is imposed on the responsive to temperature spring.

This responsive to temperature spring changes its spring constant according to the temperature of the mixing water of hot water that flows through removable valve member and cold water.Drive unit becomes a driving force with the change transitions of spring constant, thereby stably controls the temperature of mixing water.The responsive to temperature spring is to the responsive to temperature of mixing water, and has response fast, so that control the temperature of mixing water exactly.Yet, when responsive to temperature spring and its temperature be inaccurate when mixing water that hot water that flows through removable valve member and cold water ratio are directly proportional contacts, this responds fast and has caused a kind of circulating phenomenon, the temperature and the flow of its periodic variation mixing water.Cylindrical runner spare and spring chamber pipeline make the whole high-temperature water and the low temperature water that flow through removable valve member flow to the responsive to temperature spring.In other words, this runner elements and spring chamber pipeline have prevented that high-temperature water or low temperature water from having more opportunity to contact with the responsive to temperature spring separately, thereby have realized temperature control accurately.

Bias spring is exerted pressure to removable valve member on the second direction opposite with described first direction.Therefore, removable valve member moves on the position that the spring force of the spring force of a responsive to temperature spring and bias spring balances each other.The above-mentioned distance that has reduced between removable valve member and the responsive to temperature spring that moves of removable valve member.In this structure, described spring chamber pipeline has played responsive to temperature spring and the contacted effect of the well-mixed mixing water of process of making effectively.The responsive to temperature spring only can produce the power of a direction, rather than produces the power of both direction.

According to a kind of preferred embodiment, combined tap comprises a shell spare, and its wall has formed a mixing chamber and a valve chamber that holds removable valve member, responsive to temperature spring and bias spring.This shell spare is installed in one in the mode that can pull down and has the parts that are used to provide the cold water outlet of low temperature water or the hot water mouth of high-temperature water is provided.This designs simplification each parts, for example runner elements, spring chamber pipeline or comprise assembling, maintenance and the check of the temperature controlling part of responsive to temperature spring.This runner elements and spring chamber pipeline can form an integral body with the wall of shell spare, and this has reduced required part count, has saved assembling runner elements and the required labour of spring chamber pipeline.

The responsive to temperature spring is made with the material that variation of temperature changes by its spring constant, is used for temperature regulation to a setting value with the mixing water of hot water and cold water.In 10 ℃-70 ℃ adjustable extent one of the marmem that a desirable example of above-mentioned material is made up of nickel and titanium, its spring constant is at least within the specific range of temperatures of 15 degree and is directly proportional with temperature.

The responsive to temperature spring has 0.6-1.4% connection strain r.Being not less than 0.6% connection strain r has increased load, stablizes the slip of removable valve member, makes it not to be subjected to the influence of water pressure fluctuations; Being not more than 1.4% connection strain r has reduced the sluggish of spring and has improved serviceability.In order further to improve serviceability, the upper limit that connects strain r should be less than 1.2%, preferably less than 0.8%.Connection strain in this scope is adopted bias spring by removable valve member the responsive to temperature spring to be exerted pressure and is obtained.

By following in conjunction with the accompanying drawings to the detailed description of most preferred embodiment of the present invention, above and other objects of the present invention, feature and advantage will be more obvious.

Below with reference to accompanying drawing the present invention is done detailed explanation.

Accompanying drawing 1 is the sectional view of combined tap of the present invention;

Accompanying drawing 2 is plotted curves, has shown the processing temperature of the responsive to temperature spring that is adopted in the combined tap of the present invention and the relation between the reverse temperature;

Accompanying drawing 3 is sectional views of the critical piece of combined tap as shown in accompanying drawing 1;

Accompanying drawing 4 is plotted curves of the load-emergent property of the responsive spring of showing temperature;

Accompanying drawing 5 is plotted curves, has shown the temperature of responsive to temperature spring and the relation between the spring constant;

Accompanying drawing 6 is plotted curves, has shown according to the reduction of its load that endurance test obtained of responsive to temperature spring and the relation between the ficticious year number;

Accompanying drawing 7 has shown the feature of the removable valve member that is adopted in the combined tap;

Accompanying drawing 8 has shown the structure of the cold water valve seat that is adopted in the combined tap;

Accompanying drawing 9 has shown the another kind of structure of the cold water valve seat that is adopted in the combined tap;

Accompanying drawing 10 has shown the feature of the removable valve member that is adopted in the combined tap;

Accompanying drawing 11 has shown the separator of partly analysing and observe;

Accompanying drawing 12 is plotted curves, has shown the relation between the pressure of supply water of the temperature of the mixing water that flows through combined tap of the present invention and low temperature water or high-temperature water;

Accompanying drawing 13 has shown a kind of spring bearing piece of simplification;

Accompanying drawing 14 has shown the another kind of example of spring bearing piece;

Accompanying drawing 15 has shown another example of spring bearing piece;

Accompanying drawing 16 has shown another example again of spring bearing piece;

Accompanying drawing 17 has shown multiple another example again of spring bearing piece;

Accompanying drawing 18 is that the time of the responsive spring of showing temperature is the plotted curve of constant;

Accompanying drawing 19 is the perspective views that decompose through part, has shown the typical structure of main casing and cold water valve seat spare;

Accompanying drawing 20 is the perspective views that decompose through part, has shown the another kind of structure of main casing and cold water valve seat spare;

Accompanying drawing 21 is the sectional views with combined tap of preload adjustment mechanism;

Accompanying drawing 22 is sectional views of the combined tap of the another kind of preload adjustment of employing mechanism;

Accompanying drawing 23 is plotted curves, the relation between the angle of swing of the top cover of the temperature that the true temperature that has shown the mixing water that flows through combined tap is predetermined with being used to change the water that mixes;

Accompanying drawing 24 is the sectional views that adopt the combined tap of another kind of removable valve member;

Accompanying drawing 25 is the sectional views of critical piece that adopt the combined tap of another kind of separator;

Accompanying drawing 26 is perspective views of separator shown in the accompanying drawing 25;

Accompanying drawing 27 has shown shown in the accompanying drawing 25 formed fin on the separator;

Accompanying drawing 28 is perspective views of bias spring bearing piece shown in the accompanying drawing 25;

Accompanying drawing 29 has shown the axial position that is installed in the temperature transducer in the combined tap;

Accompanying drawing 30 has shown the circumferential position that is installed in the temperature transducer in the combined tap;

Accompanying drawing 31 is plotted curves, has shown the temperature distribution in the mixing chamber of the combined tap that does not have separator;

Accompanying drawing 32 plotted curves have shown the temperature distribution in the mixing chamber of the combined tap that has separator;

Accompanying drawing 33 is the sectional views of critical piece that adopt the combined tap of another kind of separator;

Accompanying drawing 34 is the perspective view of separator shown in the accompanying drawing 33;

Accompanying drawing 35 is the sectional views of critical piece that adopt the combined tap of another kind of separator;

Accompanying drawing 36 is perspective views of another kind of separator;

Accompanying drawing 37 is sectional views of the another kind of embodiment's of the present invention the combined tap with spring bearing piece;

Accompanying drawing 38 is perspective views of the responsive to temperature spring bearing piece in the accompanying drawing 37;

Accompanying drawing 39 is perspective views of another kind of responsive to temperature spring bearing piece;

Accompanying drawing 40 is sectional views of the another kind of embodiment's of the present invention combined tap;

Accompanying drawing 41 is sectional views of the another kind of embodiment's of the present invention removable valve member;

Accompanying drawing 42 is sectional views, has shown a kind of improvement structure of the bias spring bearing piece shown in the accompanying drawing 40;

Accompanying drawing 43 is sectional views of combined tap of another embodiment's of the present invention employing mixing valve;

Accompanying drawing 44 is the sectional views that show the critical piece of mixing valve in the accompanying drawing 43;

Accompanying drawing 45 is the perspective exploded views that show the typical structure of mixing valve critical piece;

Accompanying drawing 46 is sectional views of the removable valve member of mixing valve;

Accompanying drawing 47 is plane views of main casing;

Accompanying drawing 48 has shown the hot water flow in mixing valve shown in the accompanying drawing 43;

Accompanying drawing 49 is perspective views, has shown the connected structure of removable valve member and hot water seat spare.

Shown in the sectional view of accompanying drawing 1, combined tap 10 of the present invention comprises that 20, one on a shell is contained in the inner casing 30 in the shell 20, is installed in the top cap 40 of shell 20 1 ends, and a main casing 50 that is assemblied within the inner casing 30.

Main casing 50 comprises a plurality of chambers (below will describe) that are used to hold valve mechanism, that is mixing chamber 80, a current chamber 90 and a slip chamber 96.

The cold water valve seat spare 70 that is sealed with an O type ring is installed among the mixing chamber, and it has the cold water valve seat 108 of band cold water outlet 106.Formed cold water channel 102 is connected between this cold water outlet 106 and shell 20 and the inner casing 30.Main casing 50 further comprises a hot water channel 114 who is connected with the water heater (not shown) and a hot water valve seat 118, and this hot water valve seat has a hot water mouth 116 who is communicated with hot water channel 114.

Removable valve member 160 that can engage with cold water valve seat 108 and hot water valve seat 118 or be separated is installed among the current chamber 90 in the mode of sliding.This removable valve member 160 is subjected to the responsive to temperature spring 130 and the spring force that bias spring 150 is applied that are installed in the mixing chamber 80, and is positioned on above-mentioned two equilibrium of forces positions.

Referring to the accompanying drawing 3 of the sectional view of the critical piece that has shown combined tap 10, responsive to temperature spring 130 is between the responsive to temperature spring bearing piece of being supported by cold water valve seat spare assembly 70 180 and separator 190.Responsive to temperature spring 130 is made by metallic material, and its spring constant changes with temperature; Bias spring 150 is made by the not temperature variant common used material of spring constant.

Referring to accompanying drawing 1 and 3,, adopt a preload degree that preload adjustment mechanism 200 regulates bias spring 150 in order to regulate the setting temperature of the mixing water that flows through combined tap.Rotation top cap 40, bias spring bearing piece 210 moves forward and backward (that is move towards the right-hand and left of accompanying drawing 1) by a slide mechanism 250, so that increase and reduce the preload of bias spring 150.According to the increase of preload or reduce, removable valve member 160 moves to the position that the spring force of the spring force of bias spring and responsive to temperature spring balances each other, thereby changes the setting temperature of mixing water.

The temperature that flows through the mixing water of combined tap is to control by following operation:

When the mixing water with setting temperature flows through combined tap 10, and some conditions, when for example the temperature of hot water temperature who is sent here by water heater and tap water and flow remain on constant state, removable valve member 160 remains on a pair of equilibrant, that is by the spring force of the definite responsive to temperature spring 130 of the mixing water in the mixing chamber 80 and the spring force of bias spring 150, on the determined equilibrium position.When some external factors caused hot water temperature, tap water temperature, tap water flow or other substantive conditions of water heater supply that fluctuation takes place, the temperature of the mixing water in the mixing chamber 80 just departed from setting temperature through regular meeting.Responsive to temperature spring 130 changes its spring constant according to temperature, thereby changes the spring force of responsive to temperature spring.

When the true temperature of mixing water was higher than setting temperature, the spring force of responsive to temperature spring 130 increased, make removable valve member 160 forward (that is accompanying drawing 1 is right-hand) move, thereby increase the preload of bias spring 150.The court of removable valve member 160 moves right and has reduced the ratio of hot water, thereby has reduced the temperature of mixing water.

On the contrary, when the true temperature of mixing water was lower than setting temperature, the spring force of responsive to temperature spring 130 reduced, and made removable valve member 160 towards travelling backwards moving (that is move towards the left of accompanying drawing 1), thereby reduced the preload of bias spring 150.The court of removable valve member 160 moves left the ratio that has increased hot water, thereby has improved the temperature of mixing water.By this way, be adjusted near setting temperature by the true temperature of responsive to temperature spring 130 mixing water.

In combined tap 10, change setting temperature by rotating top cap 40, and top cap 40 has constituted the part of preload controlling mechanism towards predetermined direction with this structure.When present dynasty's predetermined direction rotated top cap 40, the bearing piece 210 of bias spring moved (that is the left in accompanying drawing 1 moves) backwards, compresses bias spring 150 by slide mechanism 250, increases the preload of 150 pairs of removable valve members 160 of bias spring.On the contrary, when cap court in top rotates in the opposite direction with this predetermined party, bias spring moves (that is right-hand the moving in the accompanying drawing 1) forward, makes bias spring 150 elongations by slide mechanism 250, thereby reduces the preload of 150 pairs of removable valve members 160 of bias spring.

The preload that increases bias spring 150 makes removable valve member 160 be positioned at such position, promptly, make the runner of hot water valve seat 118 broaden, and the runner of cold water valve seat 108 narrows down, the increase of the hot water flow that causes therefrom and cold water flow reduce to have changed mixed proportion between hot water and the cold water, improved the temperature of the mixing water that flows through combined tap.Otherwise, the preload that reduces bias spring 150 makes removable valve member 160 be positioned at such position, promptly, make the runner of hot water valve seat 118 narrow down, and the runner of cold water valve seat 108 broadens, the hot water flow that causes therefrom reduce and the increase of cold water flow has changed ratio between hot water and the cold water, reduced the temperature of the mixing water that flows through combined tap.

In first kind of embodiment's of the present invention combined tap 10, the preload of bias spring 150 is directly passed to removable valve member 160, in order to drive removable valve member 160, the displacement that responsive to temperature spring 130 produces owing to temperature variation is also directly transmitted and is cheated removable valve member 160, is used to drive removable valve member 160.Even only comprise the temperature-sensitive material of relatively small amount in the material of responsive to temperature spring 130 and have little spring constant, also can make removable valve member 160 produce level and smooth moving, because the sliding friction of removable valve member 160 loss is less.

To the structure and the action of each parts of combined tap 10 be described in detail below.

The metallic material that responsive to temperature spring 130 adopts can be by nickel and the titanium (marmem (SMA) of Ni-Ti) form.The Young's modulus of SMA changes along with variation of temperature, and this makes the spring constant of the responsive to temperature spring 130 made by the SMA material change with temperature.The responsive to temperature spring 130 that uses in combined tap 10 has such characteristic, the load and the strain that are spring are directly proportional with the true temperature of mixing water and the difference between the setting temperature, and described setting temperature is a feasible temperature range, for example 10-70 ℃, within choose in advance.Control the flow of hot water and cold water according to the above-mentioned characteristic of responsive to temperature spring 130.

Ni-Ti alloy has shown the Thermoelastic Martensitic Transformation in A between basic phase and the martensitic phase, and they are by the transformation initial temperature (calling Ms in the following text) under the cool condition and transformation final temperature (calling Mf in the following text) and the reverse transformation initial temperature (calling As in the following text) under heating condition and reverse transformation final temperature (calling Af in the following text) is next determines.

Ni-Ti alloy has memory function, promptly is subjected to deformation strain under such alloy be not higher than Ms temperature required, and when heating under being not less than the specified temp of Af subsequently, this alloy can produce reverse transformation, makes it to return to original shape.Ni-Ti alloy has soft martensitic phase within a low temperature range that is not higher than Mf, the reverse transformation by within the high temperature range that is not less than Af at becomes the strong martensitic phase with sufficiently high mechanical strength.

In combined tap 10, within 10-70 ℃ preset temperature range, work by the responsive to temperature spring 130 that the Ni with above-mentioned characteristic-Ti alloy is made.So just need Ni-Ti alloy can within a narrow Ms-Mf scope, not produce suddenly and change, but within a specific range of temperatures of at least 15 degree, have linear load-temperature characteristic.

Ni-Ti alloy and be to make according to following step with the responsive to temperature spring 130 that it is made:

If the weight content of the Ni in Ni-Ti alloy be the weight content of 55.0-56.0% Ni less than 55.0%, will make Ms greater than 70 ℃, and the weight content of Ni can make Mf less than 10 ℃ greater than 56.0%.When the temperature of the mixing water that flows through combined tap 10 was controlled within 10-70 ℃ the temperature required scope, the weight content used responsive to temperature spring 130 in combined tap 10 that reduces or increase Ni all was unaccommodated.

Mainly Ni-Ti the alloy that is made of Ni and Ti preferably also comprises one or more in cobalt, iron, vanadium, chromium, manganese and the aluminium, is used to replace the part of Ni and/or Ti.The effect of these metallic material is to improve or reduce above-mentioned Ms, Mf, As, Af.When the content of above-mentioned alternative metals material very little the time, the weight content of Ni is approximately at 55.0% o'clock, and Ms will be above 70 ℃.When the content of above-mentioned alternative metals material was too big, the weight content of Ni was about 56.0% o'clock, and Ms will be lower than 10 ℃.The optimum weight content of above-mentioned alternative metals material is within 0.05-2.0% scope.

Preparation with Ni, Ti as main component and comprise some other be used for substituting the Ni-Ti alloy of the metallic material (for example cobalt) of a Ni and a Ti part, and it is forged into briquet.By cold-drawing process the forging and pressing piece stretching that is obtained is become the wire rod with suitable diameter, then above-mentioned wire rod is made helical spring by cold working.Cross-section area in the cold working process reduces than being not less than 30%.Cross-section area reduces than the performance that influences less than 30% meeting as the responsive to temperature spring 130 of final products, and the difference of Ms-Mf is spent less than 15.

Subsequently, helical spring is handled, made it to have shape memory function.According to a kind of concrete process step, within 400-480 ℃ setting temperature ranges, helical spring is heated, make it to remember its original shape.This temperature range is to determine according to the setting operating temperature range of responsive to temperature spring 130.When responsive to temperature spring 130 by the Ni that comprises above-mentioned component-when the Ti alloy was made, the temperature of processing is lower than 400 ℃ can make Ms be higher than 70 ℃, and treatment temperature can make Mf be lower than 10 ℃ when being higher than 480 ℃.

Reduce than the cold working that is not less than 20% for its cross-section area, be preferably within 450-480 ℃ the temperature range helical spring is handled,, under the temperature of about 400 degree, carry out ageing treatment then to make it having shape memory function.

In a kind of most preferred embodiment, responsive to temperature spring 130 is to make according to following step:

The weight content of fusing Ni and Ti is respectively 55.2% and 44.8% alloy material A in the vacuum radio frequency induction furnace, and the weight content of Ni and Ti is respectively 55.8% and 44.2% alloy material B, in a vacuum arc furnace it is melted again then.

By forge hot and hot rolling the first alloy material A and the second alloy material B being stretched becomes the wire rod that its diameter is 5.0mm.At room temperature above-mentioned wire rod further is drawn into the wire rod that diameter is 3.3mm then, and under 750 ℃ temperature, anneals, at room temperature it is drawn into the wire rod that diameter is 2.5mm again.Cross-section area in the cold drawing process reduces than being 42.6%.

Above-mentioned wire rod is made helical spring, and its diameter is 12.5mm, and number of active coils is 4 circles, and free length is 22.0mm.Under a different set of temperature, carry out after certain shape-memory processing helical spring Ms and Mf being measured.The result who measures as shown in Figure 2.

In the curve shown in the accompanying drawing 2, empty circles and solid circles are represented helical spring Ms and the Mf that is made by the first alloy material A respectively, and open diamonds and solid diamond are then represented the Ms and the Mf of the responsive to temperature spring of being made by the second alloy material B respectively.

Accompanying drawing 2 clearly illustrates that, the difference that constitutes Ms, the Mf of alloy material of responsive to temperature spring 130 and Ms-Mf is along with the component of alloy material and the temperature in the shape-memory processing procedure and different.

Ms and Mf are along with the raising of the increase of Ni content and treatment temperature and descend.Therefore, iff making responsive to temperature spring 130, just whole operating temperature range can not be controlled within 10-70 ℃ the scope with a kind of alloy material.The component of responsive to temperature spring 130 and treatment temperature are to determine according to required mixing water setting temperature.

For example, when the mixing water that flows through combined tap 10 temperature required was set at 45 ℃, the data that accompanying drawing 2 provides showed that responsive to temperature spring 130 is preferably made by the first alloy material A and carried out shape-memory and handle under 460 ℃ temperature.When within the scope of required setting temperature at 20-40 ℃, responsive to temperature spring 130 should be made by the second alloy material B.

To at length introduce the structure of removable valve member 160 below.

Referring to accompanying drawing 3, removable valve member 160 comprises a cylindrical member 162, a formed cold water valve seat spare 164 and a hot water valve base piece 166 at the two ends of above-mentioned cylindrical member 162, the stop ring 168 that on the internal surface of cylindrical member 162, forms and have a runner elements 172.One end of stop ring 168 is supported bias spring 150, and its other end support is used for the separator 190 of the responsive spring 130 of bearing temperature.

Removable valve member 160 moves under the force action of responsive to temperature spring 130 and bias spring 150.As shown in Figure 3, when cold water valve seat spare 164 contacted with cold water valve seat 108, only the hot water of being carried by water heater can flow through combined tap 10.On the contrary, when hot water valve base piece 166 contacts with hot water valve seat 118, have only cold tap water can flow through combined tap 10.When cold water valve seat spare 164 does not contact with cold water valve seat 108, when hot water valve base piece 166 did not contact with hot water valve seat 118 yet, cold water and hot water flow through cold water outlet 106 and hot water mouth 116 respectively, and mixed mutually in mixing chamber 80.

The responsive to temperature spring 130 that is used to drive removable valve member 160 expands under the effect of the preload that bias spring 150 is produced or shrinks, thereby removable valve member 160 is slided on predetermined stroke ST.Accompanying drawing 4 is plotted curves of the load-emergent property of the responsive spring 130 of showing temperature, and solid line wherein, dot and dash line and dotted line have shown the load characteristic of at various temperatures emergent property of responsive to temperature spring 130, bias spring that this embodiment adopted and the load characteristic of known bias spring respectively.Accompanying drawing 4 clearly illustrates that, in known structure, by the responsive spring 130 of bias spring actuation temperature within a less range of strain with less spring constant, to realize bigger stroke STA.In the structure of present embodiment, adopt the bias spring 150 that has than the big spring coefficient that responsive to temperature spring 130 is expanded in a less stroke ST and contraction under normal strained condition.Following formula (1) has been represented the strain r of responsive to temperature spring 130.The optimum range of this strain is 0.6-1.4%, so that realize the stable mobile of removable valve member 160, and prevents the decreased performance that sluggishness caused by responsive to temperature spring 130.

r＝(d×ST/nD)×100(％) (1)

Wherein d, ST, n and D represent the middle footpath of the line footpath of responsive to temperature spring 130, stroke or the amount of destroying or force to yield, the number of coils and responsive to temperature spring 130 respectively.

When the strain r of responsive to temperature spring 130 less than 0.6%, thereby when only producing little load,, will influence temperature controlled stability like this even very little water pressure fluctuations also can make removable valve member 160 move.Therefore, the strain r of responsive to temperature spring 130 must not preferably be not less than 0.7% less than 0.6%.

If the strain r of responsive to temperature spring 130 will produce its hysteresis greater than 1.4%.Curve shown in the accompanying drawing 5 has shown the temperature of responsive to temperature spring 130 and the relation between the load.Referring to accompanying drawing 5, increase the area that strain r can increase lag loop, reduce the temperature control capability of responsive to temperature spring 130.In other words, when strain r was enough big, lagging characteristics original state shown in the solid line in after a while by figure was varied to another state shown in the dotted line.

Measure the serviceability of responsive to temperature spring 130 according to step as described below.

As the strain r of responsive to temperature spring 130 in maximum _MaxUnder when cooling off, will make responsive to temperature spring 130 be subjected to very big damage.More particularly, when employed responsive to temperature spring 130 in the combined tap 10 cools off suddenly, will cause maximum strain r under high setting temperature _MaxIn winter, burst open combined tap 10 mixing water with higher set temperature is cooled off quickly, thereby cooling is exposed to the responsive to temperature spring 130 in the mixing water.

Durability test carries out under above-mentioned imagination.At the responsive spring of compression temperature, make it to have maximum strain r _MaxCondition under, allow 10 ℃ cold water and 80 ℃ hot water alternately flow through 30 seconds at every turn, measure the load reduction amount of responsive to temperature spring 130 then.The line that is used to carry out the responsive to temperature spring 130 of above-mentioned measurement directly is 2.2mm and 2.5mm, and the number of coils is 3,4.5,6 and 8.The result who measures as shown in Figure 6.

The curve of accompanying drawing 6 has shown the situation that the load of responsive to temperature spring 130 reduces with heating-cool cycles number of times.Each ficticious year that horizontal ordinate is represented comprises heating-cool cycles 10,000 times, the load reduction amount of the responsive to temperature spring 130 that ordinate is represented shown and combined tap 10 in set temperature value between deviation.When and set temperature value between deviation when being 1 ℃, what sensation people generally do not have, and when deviation during greater than 2 ℃, just have slight sensation.Therefore, be necessary to control the temperature departure of mixing water, make it to be not more than 2 ℃.

In order to obtain the serviceability in 5 years, and make the deviation of temperature be not more than 2 ℃, strain r should be not more than 1.4%; In order to obtain the serviceability in 10 years, and make the deviation of temperature be not more than 2 ℃, strain r should be not more than 1.2%; In order to obtain the serviceability in 10 years, and make the deviation of temperature be not more than 1 ℃, strain r should be not more than 0.8%.

Referring to formula (1), line footpath d, the number of coils n by suitably determining stroke ST, responsive to temperature spring 130 and the middle footpath D of responsive to temperature spring 130 can be set in the strain r of responsive to temperature spring 130 within 0.6-1.2% the optimum range.

Stroke ST determines according to the diameter of removable valve member 160, to guarantee enough flows of mixing water.The optimum range of stroke ST is 0.2-1.5mm.

Formula (1) clearly illustrates that when stroke ST increased, if make the number of coils n of responsive to temperature spring 130 bigger, or middle footpath D was bigger, also can reduce strain r.Under such condition, responsive to temperature spring 130 has less spring constant, thereby causes unsettled temperature control.On the other hand, the line footpath d that increases responsive to temperature spring 130 can increase stress r, but needs to use more marmem, has increased the cost of making.Determine the parameter of responsive to temperature spring 130 by considering these factors.

The middle footpath of responsive to temperature spring 130 is preferably substantially equal to the diameter of removable valve member 160.Make the big of their diameters to equating to prevent that the load transfer with responsive to temperature spring 130 from imposing on removable valve member 160 in the process of removable valve member 160 with an inclined to one side power, thereby prevented the cold water that the inclination owing to removable valve member 160 causes or the leakage of hot water, guaranteed temperature is controlled to setting value.

The spring constant of bias spring 150 is preferably within the scope of 0.5kgf/mm-1.5kgf/mm, so that suitable preload is imposed on responsive to temperature spring 130, and the strain that makes responsive to temperature spring 130 is within 0.6-1.2% optimum range.

Referring to accompanying drawing 7, the pass of the first flow area S2 of cold water outlet 106 and hot water mouth's 116 the opening area S1 and the runner elements 172 of removable valve member 160 and the second runner Flow area S3 of responsive to temperature spring 130 is:

S1≤S2≤S3 (2)

In order clearly to describe, suppose that cold water outlet 106 and hot water mouth 116 are annular.Under this supposition, above-mentioned opening area S1 can be expressed as:

S1=V1 π ST (3) wherein V1 is the internal diameter of cold water valve seat 108 and hot water valve seat 118, and ST is a stroke.

The first flow area S2 of runner elements 172 is:

S2=(D2) ²π/4 (4) wherein D2 are the Flow diameter of runner elements 172.

The second Flow area S3 of responsive to temperature spring 130 is:

S3=(D3) ²π/4 (5) are D wherein ₃Internal diameter for responsive to temperature spring 130.

Along with moving of removable valve member 160, be mixed with each other in mixing chamber 80 from the cold water of cold water outlet 106 with from hot water mouth 116 hot water, and flow through the runner elements 172 of removable valve member 160, flow through the responsive to temperature spring 130 that is installed in the mixing chamber 80 then.As opening area S1 during greater than the second Flow area S3 of the first flow area S2 of the runner elements 172 of removable valve member 160 and responsive to temperature spring 130, the pressure loss of mixing water is cheated responsive to temperature spring 130 by transmission.Such pressure loss produces responsive to temperature spring 130 and moves.Like this, as shown in Equation (2), the second Flow area S3 of the first flow area S2 of runner elements 172 and responsive to temperature spring 130 is more preferably greater than opening area S1.

Pass between the outer diameter D 4 of responsive to temperature spring 130 as shown in Figure 8 and the internal diameter V1 of removable valve member 160 is:

V1＞D4 (6)

Cold water valve seat 108 and hot water valve seat 118 (seeing accompanying drawing 7) should have high surface accuracy, so that can provide enough good sealability when removable valve member 160 contacts with cold water valve seat 108 or hot water valve seat 118, only allow hot water or cold water flow out.For separator is slided with responsive to temperature spring 130, the inner wall surface 71 of cold water valve seat spare 70 also needs so high surface accuracy.Gauge G as shown in Figure 8 is the instrument that typically is used for the meter surface accuracy.As shown in Figure 9, when responsive to temperature spring 150 had bigger outer diameter D 4A, an opening member K had stoped the insertion of above-mentioned gauge.Therefore, the external diameter of responsive to temperature spring 130 is preferably less than the internal diameter V1 of removable valve member 160, so that can measure the inner wall surface 71 of cold water valve seat spare 70 with gauge.

The width W as shown in Figure 10 of removable valve member 160 is measured in such a way.

Referring to accompanying drawing 10, the stroke ST of the cold water seat spare 164 of removable valve member 160 or hot water seat spare 166 width W and removable valve member 160 (=ST1+ST2) preferably satisfy following relation, i.e. 1/3ST≤W≤3ST.Stroke ST preferably determines according to the material component of responsive to temperature spring 130, strain and other conditions of responsive to temperature spring 130.

When width W during less than 1/3ST, the spacing between spacing between cold water seat spare 164 and the cold water valve seat 108 and hot water seat spare 166 and the hot water valve seat 118 has played the throttling action that under little stroke ST abrupt pressure is descended.This has caused near the unexpected decline of the fluid pressure a inner portion 161 of removable valve member 160.Such pressure descends suddenly and has caused cavitation, that is produces bubble near the inner portion 161 of removable valve member 160, and further produces noise beastly or corrosion in the inside of removable valve member 160.In order to prevent such cavitation, width should be less than 1/3ST.

On the other hand, when width W during greater than 3ST, the big pressure bearing area of removable valve member 160 has increased the power that imposes on responsive to temperature spring 130.Have less spring constant because responsive to temperature spring 130 is compared with common spring, bigger pressure bearing area has stoped responsive to temperature spring 130 to keep predetermined stroke ST.Width W should be greater than 3ST, so that make the responsive to temperature spring of being made by more a spot of shape memory metallic material 130 keep predetermined stroke ST.

Removable valve member 160 with bigger pressure bearing area is easy to be subjected to the influence of water pressure fluctuations, thereby causes unsettled moving.When water was delivered to several taps by heater and combined tap 10, this pressure surge was very big.Can the pressure that a pressure maintaining valve adjustment imposes on combined tap be installed at the upstream extremity of combined tap 10.Yet one is not adopted the more efficiently method of any pressure maintaining valve is that width W is set in the above-mentioned optimum range, so that also can stably work under certain external pressure fluctuations.

Removable valve member 160 is by rubber, man made rubber or resin manufacture.Such material provides excellent sealing performance for removable valve member 160.When removable valve member 160 contacted with cold water valve seat 108 or hot water valve seat 118, the cold water seat spare 164 of removable valve member 160 or hot water seat spare 166 produced slight distortion, thereby realize effective seal.In a kind of preferred example, cold water valve seat spare 70 also adopts rubber, man made rubber or resin to make, so that further strengthen sealability.

Separator 190 between removable valve member 160 and the responsive to temperature spring 130 has following 26S Proteasome Structure and Function.

Referring to accompanying drawing 3 and 11, the spring that separator 190 has a right-hand member 134 that is used for the responsive spring 130 of bearing temperature bears portion 192 and a plurality ofly bears portion's 192 shanks 194 outstanding and that be parallel to each other from above-mentioned spring.Flow through runner 196 between above-mentioned a plurality of shank 194 from the cold water of cold water outlet 106, formed a runner 198 and spring bears the central authorities of portion 192.

The effect of separator 190 is to make between removable valve member 160 and the responsive to temperature spring 130 to maintain a certain distance, and it be the reasons are as follows:

As mentioned above, the mixed proportion of hot water and cold water is to regulate by moving of removable valve member 160.Mix mutually with hot water by the runner between the shank of separator 190 196 from the cold water of cold water outlet 106, and flow to responsive to temperature spring 130 by the runner 198 of separator 190 from hot water mouth 116.Separator 190 has guaranteed the intersegmental distance before hot water and cold water mix, thereby responsive to temperature spring 130 can be contacted with well-mixed mixing water.

A plurality of shanks 194 of separator 190 have reduced the flow velocity of the cold water that is flowed out by cold water outlet 106 when changing cold water flowing in a circumferential direction.This makes cold water flow to mixing chamber 80 by the runner between the shank 196 equably.The cold water that the hot water that is flowed out by hot water mouth 118 is flow through runner 196 centers on equably, mixes fully with cold water in mixing chamber then.By making hot water and cold water mix the separator 190 that keeps certain spacing before mutually, responsive to temperature spring 130 just can contact with the well-mixed mixing water of process, so that change its load.Like this, responsive to temperature spring 130 just can not apply the sliding force that makes it to produce inclination to removable valve member 160, but expands equably and shrink.

Estimate the effect of separator 190 by following test.The length that is used for the separator of this test is 9.5mm, and the flow of mixing water and setting temperature are respectively 10 liters and 40 ℃, and the temperature of cold water and hot water is respectively 15 ℃ and 60 ℃.

The pressure of supply water of hot water at first changes to 7.5kgf by 0.5kgf, and the pressure of supply water of cold water remains the steady state value of 2.0kgf.Pressure of supply water with cold water changes to 7.5kgf by 0.5kgf then, and the pressure of supply water of hot water remains the steady state value of 0.5kgF.Under the situation that pressure of supply water changes, measure the temperature of the mixing water that flows through combined tap.Difference between water temperature and the setting temperature is estimated.

The curve of accompanying drawing 12 has shown the result of test, with the temperature of mixing water as ordinate, with the pressure of supply water of cold water or hot water as horizontal ordinate.

Solid line EC and dotted line EH have represented the result of test that the combined tap structure with separator 190 is carried out, and wherein EH is that the pressure of supply water of hot water changes, and that the pressure of supply water of cold water keeps is constant; EC is that the pressure of supply water of cold water changes, and the maintenance of the pressure of supply water of hot water is constant.On the other hand, a little rule PC and two dot dot dash PH have represented result that the comparison structure that does not have separator is tested, and wherein PH is that the pressure of supply water of hot water changes, and that the pressure of supply water of cold water keeps is constant; PC is that the pressure of supply water of cold water changes, and the maintenance of the pressure of supply water of hot water is constant.

Compare with the comparison structure that does not have separator that a little line PC and two dot dot dash PH are represented, structure with separator 190 and the temperature departure value between the setting temperature that solid line EC and dotted line EP are represented are less with the variation of the pressure of supply water of hot water or cold water, thereby have more stable temperature control characteristic.

Spacing between responsive to temperature spring 130 and the removable valve member 160 is to determine according to the size of combined tap 10, so that guarantee sufficient mixing as mentioned above, prevents because the fluctuation that phase delay caused.In a kind of preferred example, this spacing is preferably 5-10mm.

Although in this embodiment, separator 190 and removable valve member 160 are separated from one another, in order to reduce required parts, also separator 190 and removable valve member 160 can be made an integral body.

The responsive to temperature spring bearing piece 180 that is used for the left end 132 of the responsive spring 130 of bearing temperature below in conjunction with 3 pairs in accompanying drawing describes.Responsive to temperature spring bearing piece 180 contacts with the flange 74 of the position that is used for definite responsive to temperature spring 130 of cold water valve seat spare 70.As accompanying drawing 13 clearly illustrated, the bottom 182 of spring bearing piece 180 had spiral helicine ladder 186, and its shape is corresponding to the shape of the left end 132 of responsive to temperature spring 130.

Spirality ladder 186 is crude left end 132 location of responsive to temperature spring 130, and with respect to the bottom 182 responsive spring 130 of support temperature up.The responsive to temperature spring of being supported vertically upward by bottom 186 130 applies a spring force to removable valve member 160 in the axial direction, makes removable valve member 160 not produce the situation lower slider of inclination.This structure makes removable valve member 160 can apply a good sealing force, prevents the leakage of hot water or cold water.

Although it is flat-shaped that an end of common spring is made through processing, yet responsive to temperature spring 130 has crude left end, it can not be subjected to thermal distortion or damage because of polishing processing.Responsive to temperature spring 130 can not cause damage and distortion because of polishing, and does not need further to carry out any heat treatment in order to obtain required shape memory characteristic, thereby has reduced the cost of making satisfactorily.

In this embodiment, as shown in Figure 13, the left end 132 of responsive to temperature spring 130 is supported by the spiral step 186 of spring bearing piece 180.Yet its structure is not limited to this embodiment, also can adopt other structure, as long as such structure is not needing left end to responsive to temperature spring 130 just to carry out under the situation of processing support temperature sensitivity spring 130 vertically.Accompanying drawing 14-16 has shown the example of other structures that may adopt.

Referring to accompanying drawing 14, responsive to temperature spring bearing piece 180B has spiral groove 186B, and its shape is corresponding to the shape of the left end 132 of responsive to temperature spring 130.The left end 132 of responsive to temperature spring 130 is inserted in the above-mentioned spiral chute, thus the responsive spring 130 of support temperature vertically.

In accompanying drawing 15, responsive to temperature spring bearing piece 180C has resin piece 181C, and it forms by injection moulding process, is used for fixing the left end 132 of insertion responsive to temperature spring 130 wherein.This structure that responsive to temperature spring 130 and its bearing piece 180C are formed one has prevented effectively because the load dispersion that its left end 132 causes without the installation of the responsive to temperature spring 130 of processing.

In the example shown in the accompanying drawing 16, responsive to temperature spring bearing piece 180D comprises first separation member 181A that has a plurality of pins 188 and the second separation member 181B that will have a plurality of pin-and-holes 189, and above-mentioned pin 188 can be inserted among the pin-and-hole 189.The above-mentioned first separation member 181A and the second separation member 181B are fitted together, just formed a spiral chute 186D who is used for the responsive spring 130 of support temperature.In this structure, responsive to temperature spring 130 is inserted among the above-mentioned spiral chute 186D, and keeps vertical state.

In any structure of accompanying drawing 13-16, responsive to temperature spring 130 is supported by spirality ladder or like corresponding to its left end shape.Yet the left end 132 of responsive to temperature spring 130 also can be by sanding of flat.Under these circumstances, as shown in Figure 17, responsive to temperature spring bearing piece 180A has a recess 186E, and its shape is corresponding to the shape of the left end 132 of responsive to temperature spring 130.Even left end 132 is by sanding of flat, between the first spiral ring 132a of the left end 132 of responsive to temperature spring 130 and spring, still has a little gap.Recess 186E has compensated the power in the above-mentioned gap that is applied to responsive to temperature spring 130 effectively and has been applied to poor between the power of other parts of spring, thereby has prevented the inclination of removable valve member 160.

Referring to accompanying drawing 3, be encased among the responsive to temperature spring 130 by the outstanding interior cylindrical parts 184 of responsive to temperature spring bearing piece 180, be used for the contacted time of mixing water that responsive spring 130 of delay temperature and current chamber 90 flow out.In case contact with mixing water, responsive to temperature spring 130 will very fast generation displacement.Yet, if the speed of response is too fast, will produce oscillatory occurences, promptly periodic variation flows through the temperature and the flow of the mixing water of combined tap.Such vibration is because the resonance relevant with current with the shape of removable valve member 160 causes, and it can be regulated by the time constant that changes responsive to temperature spring 130.As shown in Figure 18, timeconstant has been represented and the corresponding rising characteristic of the displacement of responsive to temperature spring 130.Interior cylindrical part 184 can be adjusted responsive to temperature spring 130 and the contacted timeconstant of mixing water, thereby has eliminated above-mentioned oscillatory occurences effectively, does not influence the characteristic of responsive to temperature spring 130 simultaneously again.

When the resin that has an insulating characteristics that is better than metal when spring bearing piece 180 usefulness was made, the height of cylindrical part 184 can obtain the time constant scope of broad in suitably adjusting.

To do detailed explanation to the cold water valve seat spare 70 that matches with main casing 50 below.

As shown in Figure 19, cold water valve seat spare 70 outer surface on formed a plurality of engage detent 72, they on the direction of circumference apart 90 the degree.On main casing 50, form the engaging groove 56 that a plurality of and above-mentioned ratchet 72 matches.

Cold water valve seat spare 70 with said structure is connected with main casing 50 in such a way.At first, as shown in Figure 3, spring bearing piece 180 is encased among the flange 74 of cold water valve seat spare 70; Responsive to temperature spring 130 is installed on the bottom 182 of spring bearing piece 180 then, and the spring bearing piece 192 of separator 190 is located and is contained on the right-hand member 134 of responsive to temperature spring 130.

Being assembled into is that the cold water valve seat spare 70 of a unit is inserted among the mixing chamber 80 of main casing 50 subsequently, thereby a plurality of engage detent 72 on its outer surface are meshed with a plurality of engaging grooves 56 on the main casing 50.

By being meshing with each other of engage detent 72 and engaging groove 56, with cold water valve seat spare 70 location and be fixed among the mixing chamber 80 of main casing 50.Because cold water valve seat spare 70 is not to be connected with main casing 50 in rotary manner, thereby can not produce torsion to responsive to temperature spring 130.Because responsive to temperature spring 130 does not expand and shrinks, therefore has less strain under torsion.This point has reduced lagging characteristics as shown in Figure 5 effectively, thereby control flows is crossed the temperature of the mixing water of combined tap exactly, and improves the serviceability of responsive to temperature spring 130.

In this embodiment's structure, formed engaging groove 56 is meshed in above-mentioned mode on the engage detent 72 on the cold water valve seat spare 70 and the main casing 50.Yet, also can adopt other structure, as long as cold water valve seat spare 70 is not to insert and to be installed in respect to the mode of main casing 50 rotations among the main casing 50.Accompanying drawing 20 has shown another kind of possible structure.

In the example shown in the accompanying drawing 20, main casing 50 has a slit 58, and cold water valve seat spare 70 has a groove (not shown).The position of slit 58 and groove makes can be toward each other when cold water valve seat spare 70 is inserted among the mixing chamber 80 of main casing 50.After cold water valve seat spare 70 is inserted in the mixing chamber 80 of main casing 50, a brake hoop 76 is inserted among above-mentioned slit 58 and the groove, thereby makes cold water valve seat spare 70 relative main casings 50 location and fixing.

To the 26S Proteasome Structure and Function of preload controlling mechanism 200 be described below.

Referring to accompanying drawing 21, preload controlling mechanism 200 comprises the bias spring bearing piece 210 of the right-hand member 154 that is used to support bias spring 150, and is used to slide mechanism 250 that bias spring bearing piece 210 is moved in the axial direction.

Above-mentioned slide mechanism 250 comprises a substrate 252 and a revolving part 260, and this substrate 252 is fixed on the connection recess 42 of top cap 40 by a locking framework or a ratchet mechanism; One end of this revolving part 260 is connected with substrate 252 by bolt 256, and its other end has male thread part 262.Bias spring bearing piece 210 comprises a substrate 212; One forms the supporter 214 of an integral body with above-mentioned substrate 212, has the box thread part 217 that is meshed with male thread 262 on the above-mentioned revolving part 260 on it; One is used to support that the spring of bias spring 150 bears portion 216; And tooth bar (spline) 218 that between the outer surface of supporter 214 and main casing 50, forms.

In having the preload controlling mechanism 200 of said structure,,, regulate the set temperature value of mixing water by rotating top cap 40 towards predetermined direction according to the adjustable temperature scope scale on top cap 40 outer surfaces.When rotating the top cap with manual mode, the bolt 256 of slide mechanism 250 and substrate 252 and revolving part 260 rotate with the top cap.The male thread part 262 of revolving part 260 is meshed with the box thread part 217 of spring bearing piece 210 in the above described manner, thereby a rotary driving force is passed to spring bearing piece 210.Because tooth bar 218 has limited the rotation of spring bearing piece 210, thereby spring bearing piece 210 is moved in the axial direction.According to spring bearing piece 210 moving in the axial direction, the spring of spring bearing piece 210 bears part 216 and bias spring 150 is produced move.The removable valve member 160 of the mobile drive of bias spring 150 moves on the position of balancing each other with bias spring 150 responsive to temperature spring 130, thereby changes the set temperature value of the mixing water that flows through combined tap 10.

In the structure that adopts preload controlling mechanism 200, bias spring is subjected to the power identical with the pressurized direction of spring bearing piece 210, and is not subjected to any warping force.More particularly, can not apply torsion by 150 pairs of removable valve members 160 of bias spring.Therefore, removable valve member 160 can not tilt, and can stably slide even apply at responsive to temperature spring 130 and bias spring 150 under the situation of very weak holding power yet.

Preload controlling mechanism 200 also can have structure as shown in Figure 22.

Preload controlling mechanism 200A as shown in Figure 22 has bias spring unit 150 ', and different is also to have one first spring bearing piece 220 and one second spring bearing piece 230 with the preload controlling mechanism 200 shown in the accompanying drawing 21.

The bias spring unit 150 ' that is used for removable valve member 160 is applied preload comprises first and second bias spring 150A and the 150B, and wherein the length of bias spring 150B is less than bias spring 150A, and their mounting point and is parallel to each other concentrically with respect to one another.

The first spring bearing piece 220 of umbrella comprises that a base portion 222, one form the top 226 of one with above-mentioned base portion 222, and is positioned at first spring that is used to bear bias spring unit 150 ' in the foot of base portion 222 and bears part 224.The base portion 222 of the first spring bearing piece 220 has hot water flux 229, and top 226 has first hole 228.

The second spring bearing piece 230 comprises the support part 232 with conical surface, one is divided into the circumferential support part 234 of one with above-mentioned support part, and at taper Zhi Tefen 232 with support that circumferentially formed second spring that is used to bear bias spring unit 150 ' bears part 236 between the part 234.Circumferentially supporting the inside of part 234 to have box thread part 247, and forming in its outside and to be used to tooth bar (spline) 248 that circumferential support part 234 can be slided in the axial direction.Above-mentioned taper supports that part 232 has second hole 238.

By the pin 242 that is connected that passes first hole 228 and second hole 238 the first spring bearing piece 220 and the second spring bearing piece 230 are linked together.When the first spring bearing piece 220 when being connected the formed projection of pin 242 1 ends and engaging, the first spring bearing piece 220 and the second spring bearing piece 230 move together, are used to discharge the spring force of bias spring unit 150 '.Otherwise, the first spring bearing piece 220 and the motion independently of one another of the second spring bearing piece 230.

Having as mentioned above, the preload controlling mechanism 200A of structure comes work in such a way.

When top cap 40 rotates to when being lower than predefined temperature range towards a direction, the second spring bearing piece 230 by slide mechanism 250 towards moving right by (referring to accompanying drawing 22), so that the convex portion that connects pin 242 is engaged with the first spring bearing piece 220.The first spring bearing piece 220 and the second spring bearing piece 230 that engage with joint pin 242 move.The effect of (referring to accompanying drawing 22) of moving right of the above-mentioned court of the first spring bearing piece 220 is the spring constant that reduces bias spring unit 150 '.The spring constant that reduces bias spring unit 150 ' can increase the expansion ratio of responsive to temperature spring 130, and removable valve member 160 is moved to the right-hand of accompanying drawing 22 soon.Like this, removable valve member 160 is just more near the hot water mouth 116 of hot water valve seat 118,, simultaneously the cold water outlet 108 of cold water valve seat 108 is all opened, allow cold water flow into.

By this way, preload controlling mechanism 200A makes removable valve member 160 contact with hot water valve seat 118, makes cold water flow through combined tap.Because the spring constant of bias spring unit 150 ' greatly reduces, so that removable valve member 160 can be moved apace, make the hot water mouth 116 of removable valve member 160 closed hot water valve seats 118 before cold water flows out, the user will bigger angle of top cap rotation.

When the top cap rotates on another direction, when being higher than predefined temperature range, the second spring bearing piece 230 is towards moving left (referring to accompanying drawing 22), makes win bias spring 150 and the second bias spring 150B that preload can both be provided.Because the preload that bias spring unit 150 ' is produced promptly increases, the cold water outlet 106 of the closed apace cold water valve seat 108 of removable valve member 160, the hot water mouth 116 who promptly opens hot water valve seat 118 simultaneously makes flow of hot water cross combined tap.

Accompanying drawing 23 has shown top cap angle of rotation θ and has flow through relation between the mixing water temperature T of combined tap.In the scope of second section angle of swing θ 2, temperature T increases gradually along with the increase of angle of swing θ.Therefore, within the scope of this angle of swing θ 2, can control accurately the temperature T of mixing water.On the other hand, in the scope of first section angle of swing θ 1, cold water changes under the θ in the small rotation angle and increases rapidly, flows through combined tap.In the scope of the 3rd section angle of swing θ 3, hot water changes under the θ in the small rotation angle and promptly increases, and flows through combined tap.

Accompanying drawing 24 is sectional views of second kind of embodiment's of the present invention combined tap 10B.Difference between it and first kind of embodiment's the combined tap 10 is to comprise the structure and the position of removable valve member 160B, hot water valve seat and cold water valve seat and hot water mouth and cold water outlet.

In this embodiment, removable valve member 160B comprises a cold water seat spare 164B, a hot water seat spare 166B, and one be connected to each other together link 165 of above-mentioned cold water seat spare 164B and hot water seat spare 166B.Cold water seat spare 164B rests against on the cold water valve seat 108B with cold water outlet 106B, and hot water seat spare 166B rests against on the hot water valve seat 118B with hot water mouth 116B.Removable valve member 160B moves under responsive to temperature spring 130 identical with first kind of embodiment and the effect of making a concerted effort between the bias spring 150.Yet in second kind of embodiment, the position of hot water mouth 116B is near responsive to temperature spring 130, and the position of cold water outlet 106B is near bias spring 150.The best correspondence of this structure is different from first kind of embodiment's pipeline arrangement.

Accompanying drawing 25 is the sectional views with another kind of combined tap 10B ' of separator 190B, and 26 in accompanying drawing is the perspective view of above-mentioned separator 190B.

Separator 190B comprises a bearing piece 192B who is used for the right-hand member 134 of the responsive spring 130 of bearing temperature, and a plurality of (for example six) are outstanding by above-mentioned spring bearing piece 192B, and the fin 194B that parallels with it.Cold water from cold water outlet 106 flows through by formed runner 196B between above-mentioned a plurality of fin 194B, and spring bearing piece 192B in be formed centrally runner 198B.As shown in Figure 27, above-mentioned a plurality of fin 194B has formed tiltangle with respect to a circumference of spring bearing piece 192.For the ease of being achieved as follows described function, the preferred value of angle θ should be 40-60 degree, is preferably 45-55 degree.

Fin 194B has strengthened the function of separator 190 crowds' shank 194 as shown in Figure 11, because they have changed from the cold water of cold water outlet 106 flowing in a circumferential direction.

Fin 194B has improved the cold water flow velocity in a circumferential direction from cold water outlet 106, has quickened the mixing in mixing chamber 80 of cold water and hot water.Therefore, responsive to temperature spring 130 can contact with the even mixed mixing water of process, prevents to produce partial load effectively.

As shown in Figure 28, as formed fin 194B on separator 190B, the bias spring bearing piece 210B that is used to bear bias spring 150 also can have a plurality of fin 210Ba.These fins 210Ba has improved the hot water flow velocity in a circumferential direction from hot water mouth 116, has quickened hot water and from the mixing of the cold water of cold water outlet 106.

Estimate the water mixed effect of formed fin 194B on separator 190B by test as described below.

Shown in accompanying drawing 29 and 30, on the circumferencial direction of mixing chamber 80, temperature transducer S1, S2, S3 and S4 have been settled in the mode of apart 90 degree.Go up measuring water temperature with these four sensor S1-S4 at six different some P1-P6 (shown in the fork-shaped symbol of accompanying drawing 29).Above-mentioned six some P1-P6 are apart predetermined distance (for example 5 millimeters) on the direction of current.

Accompanying drawing 31 has shown in the comparison structure that does not have separator, the temperature measurement result on above-mentioned six some P1-P6; Accompanying drawing 32 has then shown in the structure of the separator 190B that adopts band fin 194B, the temperature measurement result on above-mentioned six some P1-P6.Accompanying drawing 31 and 32 clearly illustrates that fin 194B has improved the cold water flowing velocity in a circumferential direction from cold water outlet 106 really, and has quickened the mixing of cold water and hot water.In the curve of accompanying drawing 32, it is very approaching to go up measured temperature and set temperature value these 4 of P3-P6.

Accompanying drawing 33 is the sectional views with another kind of combined tap 10C of separator 190C, and accompanying drawing 34 is perspective views of separator 190C.

In this embodiment, separator 190C comprises the spring bearing piece 192C that is used for the responsive spring 130 of support temperature, a plurality of outstanding and by the fin 194C of stop ring 168 location of removable valve member 160 by above-mentioned spring bearing piece 192C, with the separator 195C of an integral body of spring bearing piece 192C formation, and a distance sleeve 198C who gives prominence to by separator 195C.

Above-mentioned distance sleeve 198C is placed among the responsive to temperature spring 130, has formed the runner 80a of spring chamber with the inner wall surface 71 of cold water valve seat spare 70.On the circumferencial direction of separator 195C, formed the discharge orifice 195Ca of a plurality of (for example 4 a) apart determining deviation, so that spring chamber runner 80a is connected with mixing chamber 80.

In this structure, the cold water of the runner 196C between the hot water by current chamber 90 and the fin that flows through separator 190C mixes mutually.Mixing water flows through separator discharge orifice 195Ca and the spring chamber runner 80a of separator 195C then, and 70a flows out by outlet.Responsive to temperature spring 130 produces expansion or contraction according to the temperature of the mixing water that flows through spring chamber runner 80a.

By the throttling action of separator discharge orifice 195Ca, hot water fully mixes with the cold water that flows through runner 196C between the fin.Because abundant mixed water flows through the runner 80a of spring chamber, responsive to temperature spring 130 just can stably expand and shrink.

Accompanying drawing 35 has shown the another kind of structure of band separator 190D.

Separator 190D has the guide 197D of a taper, and it is outstanding by the separator 195C of the separator 190C shown in the accompanying drawing 34.Above-mentioned tapered guide spare 197D enlarges gradually towards downstream direction, so that make water can gently flow into spring chamber runner 80a.

A plurality of fin 194D by separator 190D fully mix, and along tapered guide spare 197D flow the mixing water current give throttling by a plurality of separator discharge orifice 195D, flow through spring chamber runner 80a then.Tapered guide spare 197D has prevented mobile being interfered in separator discharge orifice 195DA, and has quickened the smooth flow of mixing water, therefore makes separator 190D and removable valve member 160 not produce vibration, and has improved the stable slip of removable valve member 160.

As shown in Figure 36, can on the distance sleeve 198D of the distance sleeve 198C of the separator 190C shown in the accompanying drawing 34 or the separator 190D shown in the accompanying drawing 35, spirality be set and isolate protruding 198a.Above-mentioned spirality is isolated protruding 198a and is further stirred the mixing water that flows into spring chamber runner 80a, thereby responsive to temperature spring 130 can stably be expanded and shrink.In another kind of structure, for example can adopt passage buffering projection to replace above-mentioned spirality and isolate protruding 198a, so that water is stirred.Also can on the internal surface of cold water valve seat spare 70, form in spirality isolation projection that forms on the separator or passage buffering projection in the present embodiment.

The two ends of removable valve member 160 are supported by responsive to temperature spring 130 and bias spring 150, more easily cause removable valve member 160 deflections when the load of this responsive to temperature spring 130 and bias spring 150 is inhomogeneous.There are a lot of mechanisms to can be used to prevent removable valve member 160 deflections and raising sealing effect.

Referring to accompanying drawing 37, the left end 132 of responsive to temperature spring 130 is fixed on the responsive to temperature spring bearing piece 180F that is supported by cold water valve seat spare 70F.Above-mentioned spring bearing piece 180F is a dish, and it has four being positioned on the circumference and the port hole 180Fa of alternate each other 90 degree as shown in Figure 38.Spring bearing piece 180F further is provided with one and bears step 180Fb on its circumference, be used for the left end 132 of the responsive spring 130 of support temperature, and a support boss 180Fc who gives prominence in above-mentioned center portion of bearing step 180Fb.

Cold water valve seat spare 70F comprises a covering 70Fa, and four corresponding discharge orifice 70Fd of the port hole 180Fa with above-mentioned spring bearing piece 180F.In above-mentioned covering 70Fa, be formed centrally support recess 70Fb, be used to support the support boss 180Fc of spring bearing piece 180F.

Responsive to temperature spring 130 bears step 180Fb by the spring of spring bearing piece 180F and locatees.Whole spring bearing piece 180F is supported on a bit at it by support boss 180Fc, support boss 180Fc then pack into covering 70Fa support recess 70Fb location and pack into wherein.When generation made the load that responsive to temperature spring 130 is subjected to displacement, spring bearing piece 180F produced by its support boss 180Fc, and load is applied on the responsive to temperature spring 130 equably.Responsive to temperature spring 130 is adjusted,, can not applied the power that removable valve member 160 is produced such as inclination so that produce a uniform load by the effect of spring bearing piece 180F.

Bias spring 150 has goes up the structure of supporting removable valve member 160 on one point.The right-hand member 154 of bias spring 150 is supported by a bias spring bearing piece 210F by pad part 220F.Bias spring bearing piece 210F is made into a dish, has a spring and bear step 210Fa on an one circumferential area, has a support boss 210Fb therein on the heart position.Support boss 210F, on fill up part 220F and go up formed support recess 220Fa location and support by it.Bias spring bearing piece 210F supports bias spring 150, makes bias spring 150 make pivot movement around support boss 210Fb.

When the motion of pad part 220F has changed the power that may be applied on the bias spring 150, the effect of bias spring bearing piece 210F is by support boss bias spring 150 to be applied a uniform load, thereby prevents from removable valve member 160 is applied the sliding force of an inclination.

Accompanying drawing 39 is the perspective views of responsive to temperature spring resin bearing piece 180L that are used for the left end 132 of the responsive spring 130 of support temperature, it comprises a spring bearing piece resin cover 180La who is made by hardened resin, and a spring of being made by the elastic material such as spongy rubber bears elastic component 180Lb.Above-mentioned spring bears resin cover 180La and supports whole responsive to temperature spring resin bearing piece 180L reliably, and spring bears the then inclination load of the responsive spring 130 of absorption temperature of elastic component 180Lb.This structure has prevented from owing to the inclination load tilting force to be applied on the removable valve member 160 effectively.

Accompanying drawing 40 has shown that the another kind of sliding force that can avoid tilting is applied to the specified structure on the removable valve member 160G, and wherein the pressure of responsive to temperature spring 130 and bias spring 150 is concentrated in c on the center portion of removable valve member 160G

Referring to accompanying drawing 40, the joint supporter 160Ga of removable valve member 160G has a center substrate 160Gb, and three connection discharge orifice 160Gc around above-mentioned center substrate 160Gb.One is used to support the bias spring bearing piece 210G of the left end 152 of bias spring 150 to comprise a Tapered Cup 210Ga, an end support boss 210Gb who forms at the end of Tapered Cup 210Ga, a cylindrical member 210Gc, and a spring that forms on cylindrical member 210Gc bears annular recess 210Gd.

The bias spring 150 that moves through of pad part 220G passes to bias spring bearing piece 210G.The end support boss 210Gb of bias spring bearing piece 210G thereby be pressed onto on the center substrate 160Gb of removable valve member 160G, therefore removable valve member 160G can not be subjected to inclined to one side power, but only is subjected to the sliding force from center substrate 160Gb.

Separator 190G also has the structure that the central position of removable valve member 160G is exerted pressure.Separator 190G comprises a spring bearing piece 190Gf who is used for the responsive spring 130 of support temperature, a plurality of fin 194G, isolation diskware 190Gd, and an aimming circle columnar member 190Ge who forms in the outside of spring bearing piece 190Gf with a plurality of port hole 190Gc.Outstandingly at the center that isolates diskware 190Gd formed a valve pressing means 190Gg, it contacts with the center substrate 160Gb of removable valve member 160G.Aimming circle columnar member 190Ge can slide with respect to the inner wall surface 71Ga of cold water valve seat spare 70G.

Separator 190G works in such a way.Separator 190G produces slip according to the expansion or the contraction of responsive to temperature spring 130.In the sliding process of separator 190G, the aimming circle columnar member 190Ge of separator 190G is by the inner wall surface 71Ga guiding of cold water valve seat spare 70G.The slip of separator 190G is pressed on the center substrate 160Gb of removable valve member 160G the valve pressing means 190Gg of separator 190G, thereby removable valve member 160G is slided.

By this way, removable valve member 160G therein the heart be subjected to the sliding force that transmitted by separator 190G.Guide because the aimming circle columnar member 190Ge of separator 190G is the inner wall surface 71Ga by cold water valve seat spare 70G, separator 190G can not produce the situation lower slider of inclination, any tilting force can not imposed on removable valve member 160G.

Removable valve member 160G further has two O type ring 160Gd, is used to strengthen the seal action of removable valve member 160G.

Accompanying drawing 41 has shown the another kind of removable valve member 160H structure that comprises a guide.Removable valve member 160H has a port hole 160Hb who is positioned at its central position, and a sliding guide 220Ha who is given prominence to by pad part 220H, and the mode that it can slide is inserted among the port hole 160Hb.Above-mentioned sliding guide 220Ha guides removable valve member 160H effectively on the direction of a slip, thereby removable valve member 160H can be stablized and level and smooth motion.

Accompanying drawing 42 has shown the improvement structure with bias spring bearing piece 210J, its replace the bias spring 210G bias spring bearing piece 210J shown in accompanying drawing 40 have one from Tapered Cup 210Ja along bias spring 150 the outstanding guide cylinder 210Je of direction, it is inserted among the bullport 220Jb of the guide sleeves barrier part 220Ja that the distal process by pad part 220J goes out in the mode that can slide.Along with moving of pad part 220J, the propagation of pressure of bias spring 150 is given bias spring bearing piece 210J, and when guide cylinder part 210Je was directed sleeve member 220Ja guiding, this power was applied on the center portion of removable valve member (seeing accompanying drawing 40) subsequently.

Accompanying drawing 43 is to show the sectional view that embodies combined tap 300 of the present invention.Combined tap 300 comprises a mixing valve 400 and switch valve 800 that is installed among the shell 310.Cold water and the hot water that is provided by cold water channel and hot water channel is mixed by mixing valve 400 respectively, and is transported to a plurality of water supply stopcocks by switch valve.

Perspective exploded view shown in sectional view shown in 44 and the accompanying drawing 45 is described in detail mixing valve 400 with reference to the accompanying drawings.Referring to accompanying drawing 43 and 44, mixing valve 400 comprises an insulator 410 that is installed among the shell 310, be installed in a cold water conduit 420 and a hot water conduit 430 among the shell, a temperature control dial 440 that is contained in an end of shell 310, a main casing 450, and a cold water valve seat spare 480 that is connected with main casing 450 in a spiral manner.

Main casing 450 and cold water valve seat spare 480 have a plurality of chambers that are used for mounted valve mechanism (following will the explanation), that is mixing chamber 510, current chamber 520 and slip chamber 530.Main casing 450 further has the cold water outlet 462 that is connected with cold water pipes 420, and the hot water mouth 472 who is connected with hot water pipeline 430.Cold water outlet 462 is connected with current chamber 520 with hot water mouth 472, and removable valve member 560 slides in above-mentioned current chamber 520.Removable valve member 560 is subjected to being installed in the responsive to temperature spring 540 in the mixing chamber 510 and the spring force of bias spring 550, and locatees under above-mentioned two equilibrium of forces effects.

Responsive to temperature spring 540 is installed between separator 590 and the cold water valve seat spare 480 by a sliding gasket 580.Responsive to temperature spring 540 is made by the material with the spring constant that changes with temperature, and bias spring is made by the not temperature variant basically conventional material of its spring constant.

Referring to accompanying drawing 44, preload controlling mechanism 600 is regulated the preload of bias spring 550, so that change the setting temperature of the mixing water that flows through mixing valve 400.The rotation of temperature control dial 440 comes movable cushion spare 610 by an axle 610, so that increase or reduce the preload of bias spring 550.According to the increase of preload or reduce, removable valve member 560 moves to the position that the spring force of the spring force of bias spring 550 and responsive to temperature spring 540 balances each other, thereby changes the setting temperature of mixing water.

The temperature that flows through the mixing water of mixing valve 400 is to adopt method as described below to control with mixing valve.

When the mixed flow with set temperature value is crossed mixing valve 400, and some conditions, the for example hot water temperature who sends here by heater and the temperature and the flow of tap water, when keeping constant, removable valve member 560 remains on the determined position of balanced action of spring force of responsive to temperature spring 540 spring forces that mixing water caused in the mixing chamber 510 and bias spring 550.When because some external condition when making the temperature of hot water temperature from heater, tap water and flow and other substantive conditions produce fluctuation, the temperature of the mixing water in the mixing chamber 510 will depart from set temperature value.The spring constant of responsive to temperature spring 540 changes with temperature, thereby the spring force of responsive to temperature spring 540 is changed.

When the true temperature of mixing water was higher than set temperature value, the spring force of responsive to temperature spring 540 increased, and made removable valve member 560 towards moving right (seeing accompanying drawing 43), was accompanied by the increase of the preload of bias spring 550.The court of responsive to temperature spring 540 moves right and has reduced the hot water in the mixing water and the ratio of cold water.

When the true temperature of mixing water was lower than set temperature value, the spring force of responsive to temperature spring 540 reduced, and made removable valve member 560 towards moving left (seeing accompanying drawing 43), and was accompanied by the reducing of preload of bias spring 550.The court of responsive to temperature spring 540 moves left the hot water that increased in the mixing water and the ratio of cold water.By this way, by responsive to temperature spring 540, just the true temperature of mixing water can be adjusted near set temperature value.

In mixing valve 400 with said structure, change setting temperature by come rotary temperature control dial 440 towards predetermined direction, this dial has constituted the part of preload controlling mechanism 600.When rotary temperature control dial 440 on predetermined direction, pad part 610, makes bias spring 550 produce displacements in the mode of compressing, thereby increases the preload of 550 pairs of removable valve members 560 of bias spring towards left movement (seeing accompanying drawing 43) by axle 630.On the contrary, when temperature is controlled dial 440 when rotating in the opposite direction with above-mentioned predetermined party, pad part 610, makes bias spring 550 produce displacement in the mode that stretches, thereby reduces the preload of 550 pairs of removable valve members 560 of bias spring towards right motion (seeing accompanying drawing 43) by axle 630.

The preload that increases bias spring 550 is adjusted to such position with removable valve member 560, promptly enlarges hot water mouth 472 runner, reduces the runner of cold water outlet 462.The ratio that reduces to have changed hot water and cold water of the increase of the hot water flow that is obtained and cold water flow has thus improved the temperature of the mixing water that flows through mixing valve 400.On the other hand, the preload that reduces bias spring 550 is adjusted to such position with removable valve member 560, promptly reduces hot water mouth 472 runner, enlarges the runner of cold water outlet 462.The ratio that reduces to have changed with the increase of cold water flow hot water and cold water of the hot water flow that is obtained has thus reduced the temperature of the mixing water that flows through mixing valve 400.

In this embodiment's mixing valve 400, the preload of bias spring 550 is directly delivered to removable valve member 560, so that move removable valve member 560, and the displacement of the responsive to temperature spring 540 that produces based on temperature variation also is directly delivered to removable valve member 560, so that move removable valve member 560.Even comprise more a spot of temperature-sensitive material in the responsive to temperature spring 540, also can realize the level and smooth mobile of removable valve member 560, because the frictional loss of mobile removable valve member 560 is less.

The effect of switch valve 800 is to make mixed flow in a plurality of outside taps of flowing through mixing valve 400, for example any one in two outside taps.Referring to accompanying drawing 43, switch valve 800 comprises a supporter 810, sleeve 820 with first-class 822 and second flow ports 824 of opening one's mouth that is connected with outside tap, and a switch valve spare 830 that is installed among the above-mentioned sleeve 820, they all are contained among the shell 310.One switches valve member 840 and is installed in an end of supporter 810 in rotary mode, and is fixed on the switch valve spare 830 by a link 844 that is fixed on the switch valve spare 830.Switch valve spare 830 has a bottom outlet 832 that is connected with mixing chamber 510, and first and second discharge orifices 834 and 836 that are used to make above-mentioned bottom outlet to be connected with 824 with first and second flow ports 822 of sleeve 820 respectively.

Switch valve 800 is worked in such a way.When switch piece 840 rotates towards first direction, be used to make first discharge orifice 834 to open one's mouth 822 when being connected with first-class, 822 flow to first flow 850 from the mixing water of the mixing chamber 510 of mixing valve 400 by bottom outlet 832, first discharge orifice 834, first-class opening one's mouth.When switch piece 840 rotates towards second direction, when being used to make second discharge orifice 836 to be connected, flow to second runner 855 by bottom outlet 832, second discharge orifice 836, second flow ports 824 from the mixing water of the mixing chamber 510 of mixing valve 400 with second flow ports 824.

Below the structure and the action of mixing valve 400 is described in detail.Referring to accompanying drawing 46, removable valve member 560 comprises a column 562, a formed cold water seat spare 564 and a hot water seat spare 566 at the two ends of above-mentioned column 562, one on the internal surface of column 562, form and have runner elements 572 brake hoop 568, and one by the crooked inwardly arc guiding surface 574 of hot water seat spare 566.The inclined to one side spring 550 of one side bearing of described brake hoop 568, the separator 590 of opposite side support bearing responsive to temperature spring 540.

Above-mentioned removable valve member 560 is shifted to the equilibrium position under the force action of responsive to temperature spring 540 and bias spring 550.When cold water seat spare 564 rests against cold water valve seat 486, only have from the flow of hot water of heater and cross mixing valve 400.When hot water seat spare 566 rests against hot water valve seat 478, only there is cold water to flow through mixing valve 400.When cold water seat spare 564 did not contact with hot water seat spare 478 with cold water seat spare 486 with hot water seat spare 566, cold water and hot water just provided simultaneously according to cold water outlet 462 and hot water mouth's 472 width of flow path, and mixed mutually in current chamber 520.

The responsive to temperature spring 540 that is used to drive removable valve member 560 expands under the effect of the stress that preload produced of bias spring and shrinks, so that removable valve member 560 is slided with predetermined stroke.

Referring to accompanying drawing 46, the arc guiding surface 574 of removable valve member 560 is crooked inwardly by hot water conduit 430, tilts towards brake hoop 568 at current chamber 520.Hot water from hot water conduit 430 flows into current chamber 520 through hot water mouth 472.If guiding surface 574 is planes, the unexpected increase of Flow area can cause the hot water turbulent flow, will cause when it flows through the spring ring of bias spring 550 and not wish the noise that produces.On the contrary, even the arc guiding surface also can make fluid keep laminar condition, thereby when crossing the spring ring of bias spring 550, flow of hot water can not cause noise under the situation that Flow area increases.

Referring to accompanying drawing 47 and 48, the cold water outlet 462 of main casing 450 and hot water mouth 472 have a pair of cold water link 464 and a pair of hot water link 474 respectively.Hot water conduit 430 discharge orifice is positioned on this position to hot water link 474.The hot water that flows through hot water conduit 430 impacts on the hot water link 474, and changes its flowing in a circumferential direction, so that go into current chamber 520 by whole regional upper reaches of the hot water mouth 472 equably basically.Like this hot water that flows out on the whole zone by hot water mouth 472 fully with mix mutually equably with by the cold water of cold water conduit 420 with cold water outlet 462.As shown in Figure 44, its mounting point makes from hot water conduit's 430 hot water near the O type ring 453 of temperature control dial 440 and flows into hot water mouths 472 by the gap 431 adjacent with above-mentioned O type ring 453, flows into current chamber 520 then.This also helps the even mixing of hot water and cold water.

Be described in detail below with reference to the perspective view of accompanying drawing 49 26S Proteasome Structure and Function hot water valve seat 487 and related elements.This hot water valve seat 478 comprises ring-shaped valve seats surface 478a, and the hot water seat spare 566 of it and removable valve member 560 contacts.The formed separatrix PL of mould somatotype has determined the circumference of valve base surface 478a in the injection molded process.Circumference along valve base surface 478a has formed four guide humps 476 with 90 spacings of spending.Consider to the guide performance of removable valve member 560 and flow into the resistance of hot water mouth 472 hot water that the height of each projection 476 is slightly greater than the stroke ST of removable valve member 560.

Valve base surface 478a needs high surface accuracy.Even valve base surface 478a goes up the sealing effect between the hot water seat spare 566 of the hot water valve base piece 560 have very little Roughness also can destroy it and removable valve member 560, thereby makes the true temperature of mixing water depart from set temperature value.Therefore, need be with a minute surface of valve base surface polishing becoming.Yet the separable mould that is suitable for molded hot water link 474 can form the separatrix PLa shown in the dotted line in the accompanying drawing 49 on the valve base surface 468a.In this embodiment, valve base surface 478a is that the end surface by a cylindrical chipware (not shown) forms.Naturally form although separatrix PL is the circumference along cylindrical chipware, guide hump 476 has prevented that effectively the hot water seat spare 566 of removable valve member 560 from contacting with above-mentioned joint line PL.

Be installed in the insulator 410 among the shell 310 and adopt the cooling mechanism of this insulator to describe below with reference to 44 pairs in accompanying drawing.Insulator 410 has formed a columniform resin piece.Formed the coolant flow channel 424 that is connected with cold water conduit 420 between insulator 410 and shell 310, it passes through insulator 410 basically around hot water conduit 430.Above-mentioned insulator 410 and coolant flow channel 424 have following function.In the structure of the mixing valve 400 of present embodiment, hot water conduit 430 be installed in temperature control dial 440 near.Flow through that heat in hot water conduit 430 the hot water may be transmitted and the temperature that improves temperature control dial 440.When the cold water from cold water conduit 420 flows to coolant flow channel 424 and when cooling off insulator 410 effectively, insulator 410 can stop hot water conduit 430 heat transfer, thereby prevented to make the temperature of temperature control dial 440 to raise.

Referring to accompanying drawing 44 and 45, between removable valve member 560 and responsive to temperature spring 540, be provided with separator 590.This separator comprises a spring bearing piece 592 that is used for an end 544 of the responsive spring 540 of support temperature, and a plurality of from above-mentioned spring bearing piece 592 outstanding and parallel shanks 594.Cold water from cold water outlet 462 flows through formed runner 596 between above-mentioned a plurality of shanks 594, and the middle part of spring bearing piece 592 has formed a runner 598.

The effect of separator 590 is based on following reason, makes between removable valve member 560 and the responsive to temperature spring 540 at a distance of certain distance.As mentioned above, the mixed proportion of hot water and cold water is to regulate by moving of removable valve member 560.From cold water outlet 462 and flow through the cold water of runner 596 between the separator 560 above-mentioned shanks and mix mutually, and flow to responsive to temperature spring 540 by the runner 598 of separator with hot water from hot water mouth 472.Separator 590 has guaranteed can mix fully in current chamber 520 before mixing water arrives responsive to temperature spring 540 and contacts with it.This responsive to temperature spring 540 that makes can have been realized the stable of mixing water and precise dose control with the contacted structure of abundant mixed mixing water.

Cold water from cold water outlet 462 directly is not flushed to responsive to temperature spring 540, but flows through the runner 596 between the shank of separator 590.This structure has prevented to produce undesirable vibration owing to fluid pressure makes responsive to temperature spring 540 effectively, and has guaranteed the stable operation of responsive to temperature spring 540.

Determine by the spacing between separator 590 formed responsive to temperature springs 540 and the removable valve member 560 according to the size of mixing chamber 400,, prevent because the vibration that operating lag caused so that guarantee aforesaid abundant mixing.In a kind of preferred example, this distance can be 5-10mm.

Although separator 590 and removable valve member 560 are separated from one another in this embodiment,, also can make separator 590 and removable valve member 560 form an integral body in order to reduce the number of parts.

To cold water valve seat spare 480 and the sliding gasket 580 that be installed in a spiral manner on the main casing 450 be described in detail below.

Referring to accompanying drawing 44 and 45, cold water valve seat spare 480 comprises a valve base piece 482, and it has a recess 481, is used to form the mixing chamber 510 that matches with main casing 450; The formed cold water valve seat 486 of a end at valve base piece 482; A male thread part 484 that on valve base piece 482, forms, it is screwed on the box thread 455 of main casing 450; And a spring bearing piece 488 that on the bottom of recess 481, forms, be used for coming the responsive spring 540 of support temperature by sliding gasket 580.Responsive to temperature spring 540 is that the high rigidity wire rod of 2mm is made spiral spring by diameter, its other end 546 is polished, and heat-treat, and makes it to have the temperature memory performance.Sliding gasket 580 is made by heat-resistant material, for example aldehyde resin or fluororesin, and it is processed, make it to have specular surface.Sliding gasket 580 also can adopt other materials manufacturing, for example metal or pottery, and its condition is that this material has enough resistance to heats and can make it to have specular surface through processing.

On the cold water valve seat spare with said structure 480, load onto sliding gasket 580 and responsive to temperature spring 540, be installed in then among the main casing 450.Under the condition that removable valve member 560 is installed among the main casing 450, sliding gasket 580 is positioned on the spring bearing piece 488 of cold water valve seat spare 480.Responsive to temperature spring 540 is inserted among the recess 481, and wherein an end 544 of responsive to temperature spring 540 is supported by separator 590.When the end of a plurality of shanks of separator 590 contacted with the brake hoop 568 of removable valve member 560, the male thread part 484 of cold water valve seat spare 480 was connected with the box thread part 455 of main casing 450, thereby cold water valve seat spare 480 is installed on the main casing 450.

The rotating force and the pressure that are produced by the screw-thread fit of cold water valve seat spare 480 are applied on the responsive to temperature spring 540 by sliding gasket 580.Yet because sliding gasket 580 has specular surface, responsive to temperature spring 540 has high strength, therefore only responsive to temperature spring 540 is exerted pressure and can not apply torsion to it.Responsive to temperature spring 540 can not expand in mixing chamber owing to torsional load or shrink, thereby can not make removable valve member 560 produce, and destroys sealing effect.Responsive to temperature spring 540 reduced its sluggishness effectively than small strain, enable to regulate the temperature of mixing water, and improve the serviceability of responsive to temperature spring 540 with high precision.

Referring to accompanying drawing 44 and 45, preload regulating system 600 comprises the backing member 610 of an end 554 that is used to support bias spring 550, and is used for making backing member 610 at axially movable mandrel 630.

Described backing member 610 comprises a cylinder-shaped body 612 with a bottom outlet 611, the formed spring bearing piece 615 of one end of the cylinder-shaped body 612 of an end that is used to bear bias spring 550, first guide 614 that on the outer wall of cylinder-shaped body 612, forms and second guide 616, and the first box thread part 622 that on the internal face of cylinder-shaped body 612, forms and the second box thread part 624.

First and second guides 614 and 616 are along apart 180 degree of the circumference of cylinder-shaped body 612, its position is corresponding to the end of first and second box threads parts, and is included in first and second steering channel 614a and the 616b that extend on the axis of cylinder-shaped body 612 respectively.The mode that the first and second steering channel 614a and 616b can slide is with respect to motion on the

guide rail

458 and 459 that forms on the inwall of main casing 450.

Mandrel 630 comprises a solid of rotation 632 and a projection 634, and they form an integral body by resin material.Projection 634 is passed a perforation 457 on the main casing 450, and is fixed on the temperature control dial 440 at the keyway that forms on the outer surface of projection 634 and a fixed block 442 by one.Solid of rotation 632 has respectively the first male thread part 636 and the second male thread part 638 corresponding to the first box thread part 622 and the second box thread part 624.As shown in Figure 45, formed projection 639 on the first and second

male thread parts

636 and 638, it contacts with the root of the first and second

box thread parts

622 and 624, so that produce slip resistance.

In having the preload controlling mechanism 600 of said structure,,, the temperature of mixing water is controlled by the control of rotary temperature on predetermined direction dial 440 according to the indication of the available temperature range on the outer surface of temperature control dial 440.When coming rotary temperature control dial 440 with manual mode, mandrel 630 is with 440 rotations of temperature control dial.The first and second male thread parts 636 that form on the outer surface of mandrel 630 with 638 with backing member 610 on the first and second box thread parts 622 be connected with 624, thereby a rotating force is passed to backing member 610.Because first and second guides 614 and 616 and

guide rail

458 and 459 stop the rotation of backing members 610, backing member 610 just moves in the axial direction.Moving axially of backing member 610 makes bias spring 550 move subsequently.The removable valve member 560 of the mobile drive of bias spring 550 makes responsive to temperature spring 540 move to such position, and promptly responsive to temperature spring 540 and bias spring 550 balance each other, thereby changes the setting temperature of the mixing water that flows through mixing valve 400.

In the structure of preload controlling mechanism 600, bias spring 550 bears the preload identical with the pressurized direction of backing member 610, does not bear any torsion, that is does not have torsion to pass to removable valve member 560 by bias spring 550.Therefore, even removable valve member 560 can not tilt under the condition of the faint holding power of responsive to temperature spring 540 and bias spring 550 yet and only can stably slide.

Preload controlling mechanism 600 is installed in such a way.At first mandrel 630 is installed in the backing member 610.With backing member 610 first and second guide 614 and 616 be installed on the

guide rail

458 and 459 of main casing 450, the projection 634 be installed in the perforation 457 among after, backing member 610 and mandrel 630 are inserted in the main casing 450.Then temperature being controlled dial 440 is installed on the main casing 450.Mandrel 630 first and second

male threads

636 and 638, together with the

box thread

622 and 624 of backing member 610, formed and be used to realize two worm structures of smoothly being threaded.First and second guides 614 and 616 position are corresponding to the end of first and

second box threads

622 and 624, so that realize assembling automatically.When being installed to first and second guides 614 and 616 on

guide rail

458 and 459, backing member 610 is inserted among the main casing 450.Compare with the mechanism of employing such as keyway; This mode can accurately be located.

Backing member 610 is connected to each other by two screw threads with mandrel 630 and is in the same place, and it has a bigger pitch, guaranteeing level and smooth being threaded, but also may make mandrel 630 loosening at an easy rate by the spring force of bias spring 550.Yet, in this embodiment, the formed protruding 639 anti-skidding effects of having played the root of first and

second box threads

622 and 624 on the screw thread of first and second

male threads

636 and 638, thus mandrel 630 can not to be biased the spring force of spring 550 loosening.Such projection 639 can form at an easy rate, because mandrel is generally made with resin material.

Under the situation that does not break away from substantive distinguishing features of the present invention, can also make many improvement to the present invention.Clearly, the foregoing description only is illustrative, rather than restrictive.Protection scope of the present invention is determined by following claim.

Claims

1, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A separator has first and second ends, between above-mentioned removable valve member and responsive to temperature spring, makes the first end of responsive to temperature spring and a specific position at a distance of predetermined spacing, and high-temperature water mixes with the low temperature water on this position.

2, combined tap as claimed in claim 1, it is characterized in that, described separator has one and the contacted valve casting die of removable valve member on its first end, have the spring bearing piece of the first end of the responsive spring of a support temperature at its second end.

3, combined tap as claimed in claim 2 is characterized in that, the described valve casting die that forms on the first end of separator formed spring bearing piece from the separator the second end is outstanding;

Described valve casting die has the shank of the apart predetermined spacing that forms on the circumferencial direction of a plurality of internal surfaces along removable valve member.

4, combined tap as claimed in claim 3 is characterized in that, the formed cold water outlet on the described housing of some shank in the described shank is arranged.

5, combined tap as claimed in claim 4 is characterized in that, each described shank all forms a fin, is used to make the low temperature water from described cold water outlet mobile on described circumferencial direction along the internal surface of removable valve member.

6, combined tap as claimed in claim 5 is characterized in that, described valve casting die has six to eight fins that distribute with the spacing that equates on described circumferencial direction.

7, combined tap as claimed in claim 5 is characterized in that, described valve casting die has six to eight fins that distribute with the spacing that do not wait on described circumferencial direction, and this spacing is directly proportional with distance to cold water outlet.

8, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

9, combined tap as claimed in claim 8 is characterized in that, described cold water outlet is positioned at hot water mouth's downstream.

10, combined tap as claimed in claim 9 is characterized in that, described bifurcated spare is made up of one or more fins, is used to make the low temperature water that flows through described cold water outlet mobile at a circumferencial direction along the internal surface of removable valve member.

11, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

One is installed in certain position and towards hot water mouth's bifurcated spare, is used to change the flow direction from hot water mouth's high-temperature water.

12, combined tap as claimed in claim 11 is characterized in that, further comprises a spring bearing piece that is used to support described bias spring, and described bifurcated spare has formed an integral body with the bias spring bearing piece.

13, combined tap as claimed in claim 12 is characterized in that, described bifurcated spare comprises one or more fins, is used to make the high-temperature water that flows through described hot water mouth mobile at a circumferencial direction along the internal surface of removable valve member.

14, a kind of combined tap comprises:

One has the responsive spring of first and second end region temperatures, contacts with the high-temperature water and the formed mixing water of low temperature water that mix mutually in mixing chamber, and this responsive to temperature spring has the spring constant that the temperature with described mixing water changes;

Drive unit is used for handling described removable valve member according to the pressure of responsive to temperature spring;

A bifurcated spare is used on a circumferencial direction of described cylindrical mixing chamber the high-temperature water current of guiding from the hot water mouth, from the low temperature water current of cold water outlet, and the mixing water current that mix at the upstream extremity of responsive to temperature spring.

15, combined tap as claimed in claim 14 is characterized in that, second end of described responsive to temperature spring is fixed, and removable valve member is exerted pressure on first direction by its first end, to play described drive unit.

16, combined tap as claimed in claim 15 is characterized in that, comprises that further is used for a bias spring of on a second direction opposite with described first direction removable valve member being exerted pressure.

17, combined tap as claimed in claim 16 is characterized in that, further comprises the preload controlling mechanism that is used to regulate the preload that is applied on the described bias spring.

18, as claim 15,16 or 17 each described combined taps, it is characterized in that, this combined tap further comprises a shell spare, and its wall has formed described mixing chamber and a valve pocket that is used to install described removable valve member, responsive to temperature spring and bias spring;

Described shell spare is connected with the parts with described cold water outlet and hot water mouth in the mode that can pull down.

19, combined tap as claimed in claim 18 is characterized in that, described bifurcated spare forms an integral body with the described wall of shell spare.

20, combined tap as claimed in claim 18 is characterized in that, further comprises being used for described responsive to temperature spring and removable valve member separator spaced apart, and described bifurcated spare forms on the described separator.

21, combined tap as claimed in claim 20 is characterized in that, described separator comprises a guide, and this guide can contact by the wall with mode of sliding and the described shell spare of facing mixing chamber on a plurality of points.

22, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A spring chamber pipeline is used for and will be directed among the described spring runner chamber from hot water mouth's high-temperature water with from the mixing water of the low temperature water of cold water outlet.

23, combined tap as claimed in claim 22, it is characterized in that, further comprise the separator between described responsive to temperature spring and removable valve member, the hybrid position that is used to make first end of responsive to temperature spring and high-temperature water and low temperature water is at a distance of certain distance;

Described cylindrical runner spare and spring chamber pipeline form on described separator.

24, combined tap as claimed in claim 23 is characterized in that, the spring chamber pipeline is made of a throttling element.

25, combined tap as claimed in claim 24 is characterized in that, described spring chamber pipeline forms at an end of separator, and has a guide, and this guide is enlarged to downstream gradually by the upstream extremity of mixing water.

26, combined tap as claimed in claim 22 is characterized in that, further comprises a responsive to temperature spring bearing piece, and it has a spring that is used for second end of the responsive spring of bearing temperature and bears element;

Described cylindrical runner spare forms on described responsive to temperature spring bearing piece.

27, combined tap as claimed in claim 22 is characterized in that, a mobile shock absorber that is used to stir mixing water has been installed in described spring runner chamber.

As claim 27 combined tap, it is characterized in that 28, described mobile shock absorber is a spirality projection that forms on described cylindrical runner spare.

29, combined tap as claimed in claim 27 is characterized in that, described mobile shock absorber is a spirality projection that forms on the internal face of described shell spare.

30, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A removable valve member, this removable valve member is installed among the above-mentioned slip chamber in the mode that can slide, is used to regulate hot water that flows through above-mentioned hot water mouth and the mixed proportion that flows through the cold water of above-mentioned cold water outlet;

A responsive to temperature spring bearing piece has its shape and bears recess corresponding to the spring of the second end shape of responsive to temperature spring.

31, combined tap as claimed in claim 30 is characterized in that, but described responsive to temperature spring bearing piece comprises a separate pieces, and it has the spiral chute that is used to hold the responsive to temperature spring.

32, combined tap as claimed in claim 30 is characterized in that, second end of responsive to temperature spring is worn into the plane.

33, combined tap as claimed in claim 30 is characterized in that, described responsive to temperature spring bearing piece comprises a resin piece, and the second end of responsive to temperature spring is inserted wherein and molded with it becoming one.

34, combined tap as claimed in claim 30, it is characterized in that, further comprise the separator that is installed between responsive to temperature spring and the removable valve member, be used to make position that the first end of responsive to temperature spring mixes with high-temperature water and low temperature water at a distance of certain spacing

Described responsive to temperature spring bearing piece forms on separator.

35, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A removable valve member, this removable valve member is installed among the slip chamber that is formed in the above-mentioned shell spare in the mode that can slide, is used to regulate hot water that flows through above-mentioned hot water mouth and the mixed proportion that flows through the cold water of above-mentioned cold water outlet;

A responsive to temperature spring bearing piece, comprise a flat board and a spring fixed bearing element that is used for the second end of the responsive spring of support temperature that has been formed centrally the center supporter therein, described responsive to temperature spring bearing piece is supported on the shell spare by described center supporter, so that responsive to temperature spring bearing piece can be pivoted with respect to shell spare.

36, combined tap as claimed in claim 35 is characterized in that, the center supporter of described responsive to temperature spring bearing piece comprises a projection and a recess that is used to support described projection.

37, combined tap as claimed in claim 35 is characterized in that, the center supporter of described responsive to temperature spring bearing piece is mainly made by hardened resin, and the spring of described responsive to temperature spring bearing piece bears element and mainly made by elastic material.

38, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A bias spring has first end and the second end, is used for the described removable valve member of compressing on the second direction opposite with above-mentioned first direction; And

A bias spring bearing piece, comprise that a flat board that has been formed centrally the center supporter therein and one are used to support the spring of the first end of bias spring to bear element, described bias spring bearing piece is supported on the shell spare by described center supporter, so that the bias spring bearing piece can be pivoted with respect to shell spare.

39, combined tap as claimed in claim 38 is characterized in that, the center supporter of described bias spring bearing piece comprises a projection and a recess that is used to support described projection.

40, combined tap as claimed in claim 38 is characterized in that, the center supporter of described bias spring bearing piece is mainly made by hardened resin, and the spring of bias spring bearing piece bears element and mainly made by elastic material.

41, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A responsive to temperature spring bearing piece, have a spring that is used for the second end of the responsive spring of support temperature and bear element, and the central position of removable valve member is exerted pressure on glide direction one bears the outstanding valve casting die of element from described spring.

42, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A responsive to temperature spring, mainly make by the material that can within certain temperature range, change its spring constant along with variation of temperature, to be higher than set temperature value right when the true temperature of mixing water, this responsive to temperature spring is oppressed removable valve member on first direction, so that reduce the ratio of high-temperature water and low temperature water;

A bias spring has first and second ends, and this bias spring is exerted pressure to removable valve member on the second direction opposite with above-mentioned first direction,

A bias spring bearing piece, the spring with the first end that is used to support bias spring bears element, and one is born the outstanding valve casting die of element to what the central position of removable valve member was exerted pressure from described spring on glide direction.

43, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A bullport that passes this removable valve member in its glide direction of removable valve member upper edge; And

An induction element that is fixed on the described shell spare, and slidably be installed in the described bullport, be used to support removable valve member.

44, a kind of combined tap is used to mix high-temperature water and low temperature water and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

45, combined tap as claimed in claim 44 is characterized in that, further comprises the seat surface that a removable valve member of confession is located in, and when removable valve member contacted with this seat surface, this seat surface was positioned along on the joint line of removable valve member circumference,

Described guide hump is made and is made removable valve member be seated in described joint line inboard.

46, a kind of combined tap is used to mix high-temperature water and low temperature water, and makes the mixing water with predetermined temperature value flow through this combined tap, comprises;

A removable valve member, this removable valve member is installed among the slip chamber that is formed in the above-mentioned housing in the mode that can slide, is used to regulate hot water that flows through above-mentioned hot water mouth and the mixed proportion that flows through the cold water of above-mentioned cold water outlet;

A responsive to temperature spring bearing piece comprises that a spring that is used for the second end of the responsive spring of support temperature bears element, and the cylindrical member among slip chamber that is inserted into described shell spare;

Be used for responsive to temperature spring bearing piece is fixed to fixing device on the shell spare.

47, combined tap as claimed in claim 46 is characterized in that, described fixing device comprises a recess that forms on shell spare, and one on responsive to temperature spring bearing piece, form be used for the engage detent that is meshed with described recess.

48, combined tap as claimed in claim 46, it is characterized in that, described fixing device comprises a slit that forms on shell spare, one responsive to temperature spring bearing piece corresponding to described slit portion bit position on the groove that forms, and a stop ring that engages with described slit and groove, be used for preventing that responsive to temperature spring bearing piece from being come off out by the slip chamber.

49, combined tap as claimed in claim 46 is characterized in that, further comprises a cold water valve seat spare among the slip chamber that is installed in described shell spare, is used to constitute cold water outlet, and has the cold water valve seat on removable valve member seated position;

Responsive to temperature spring bearing piece forms on described cold water valve seat spare.

50, a kind of combined tap is used to mix high-temperature water and low temperature water and makes the mixing water with predetermined temperature value flow through this combined tap, comprising:

A spring bearing piece, has second helical thread portion that is meshed with first helical thread portion of described shell spare, by the engagement of second helical thread portion and first helical thread portion, described spring bearing piece is installed on above-mentioned opening one end of described shell spare, and the second end of the responsive spring of bearing temperature;

51, a kind of combined tap comprises:

A responsive to temperature spring contacts with the mixing water of mixed high-temperature water and low temperature water in mixing chamber, and this responsive to temperature spring has the spring constant that the temperature with mixing water changes; Be used on first direction and drive the drive unit of described removable valve member pro rata with the pressure of responsive to temperature spring;

A cylindrical runner spare that is positioned among the described responsive to temperature spring is used for internal face with shell spare and forms a spring runner chamber that the responsive to temperature spring is housed in it together;

A spring chamber pipeline is used for and will be directed among the described spring chamber from hot water mouth's high-temperature water with from the mixing water of the low temperature water of cold water outlet.

52, combined tap as claimed in claim 51 is characterized in that, comprises that further is used for a bias spring of on the second direction opposite with described first direction removable valve member being exerted pressure.

53, combined tap as claimed in claim 52 is characterized in that, further comprises a preload controlling mechanism that is used to regulate the preload that is applied on the described bias spring.

54, as claim 51,52 or 53 each described combined taps, it is characterized in that, further comprise a shell spare, it has the valve chamber that a wall is used to form mixing chamber and holds removable valve member, responsive to temperature spring and bias spring;

Described shell spare is installed on the parts with cold water outlet or hot water mouth in the mode that can pull down.

55, combined tap as claimed in claim 54 is characterized in that, described cylindrical runner spare and spring chamber pipeline form on the wall of shell spare in the mode of integral body.

56, a kind of combined tap, move a removable valve member by a helical spring expansion of responsive to temperature and contraction, be used to make high-temperature water and low temperature water to mix, and make the mixing water that flows through combined tap have the temperature of setting, wherein said responsive to temperature spring is mainly made by nickel-titanium alloy, and has the spring constant that is directly proportional with temperature under following condition:

Transformation initial temperature when ℃ wherein Ms and Mf represent to cool off respectively Ms≤70 ℃, Mf 〉=10 ℃, Ms-Mf 〉=15 and change final temperature, this responsive to temperature spring has 0.6-1.4% connection strain, and it has following formula to represent:

57, combined tap as claimed in claim 56 is characterized in that, described connection strain r is within 0.6-1.2% scope.

58, combined tap as claimed in claim 56 is characterized in that, described connection strain r is within 0.6-0.8% scope.

59, combined tap as claimed in claim 56 is characterized in that described removable valve member is installed between responsive to temperature spring and the bias spring in a movable manner.