CN207333817U - The improved thermostatic valve core of structure - Google Patents

Abstract

The utility model provides a kind of improved thermostatic valve core of the structure containing shape memory alloy spring, belongs to sanitary bath equipment field.Temperature adjustment component, SMA, bias spring and hot and cold water water inlet control assembly including valve body and the operable cooperation for being arranged on body cavity.In the utility model, hot and cold water water inlet control assembly slides axially as an entirety in valve body, and bias spring upper end offsets with the second slide cartridge, so that bias spring does not contact directly with water inlet of hot water；Secondly, bias spring is contained between the second slide cartridge stopper protrusion and valve base frame rank, it is spaced with hot water water inlet, water accumulating volume in valve bottom is seldom, bias spring is avoided excessively to contact current and be immersed in a large amount of water for a long time, the bias spring mounting design of the utility model will greatly prolong its service life, ensure that the slip of hot and cold water water inlet control assembly is smooth, so as to not influence the performance and service life of thermostatic valve core.

Description

The improved thermostatic valve core of structure

Technical field

The utility model belongs to sanitary bath equipment field, and in particular to a kind of structure containing shape memory alloy spring is improved Thermostatic valve core.

Background technology

Thermostatic valve core is the mixed proportion for automatically adjusting hot and cold water, the temperature of mixing water is automatically held in setting temperature The device of degree.Generally include valve body, temperature adjustment component, temperature-sensitive element and hot water or cold water's water inlet control assembly, temperature-sensitive element and be generally stone Wax thermostatic assembly or shape memory alloy spring（Abbreviation SMA, its length vary with temperature by a relatively large margin flexible）.SMA is permanent Warm spool reaction speed is exceedingly fast, and temperature moment surmounts value and is controlled to less than 2 DEG C, and the reaction near 40 DEG C is extremely sensitive, It can meet that user carries out the needs of stepless fine adjustment, such thermostatic valve core has more preferable market prospects.

As China's patent discloses a kind of counterflow-preventing thermostatic valve core using shape memory alloy spring（Application No. 201010620357.1）, a kind of thermostatic valve core wherein is provided in embodiment two, including be provided with cooling water inlet, hot water inlet With the valve body of water outlet and temperature adjustment component, SMA and the hot and cold water of the operable cooperation for being arranged on body cavity into water management Component, it is characterised in that：Hot water inlet on its valve body perisporium is provided between cooling water inlet and water outlet, and SMA is positioned at warm In mixing aquaporin between water inlet and water outlet, hot and cold water water inlet control assembly includes adjusting sliding sleeve, slide cartridge, biasing bullet Spring, adjust sliding sleeve between body cavity hot and cold water inlet, be slidably matched, two end face respectively with hot water or cold water's import Two opposite edges are close, respectively form an inlet valve, and slide cartridge, which then pierces into, adjusts sliding sleeve endoporus, is supported with its endoporus right flank Connect cooperation, slide cartridge left part puts in body cavity, is slidably matched therewith, its perisporium and hot water inlet corresponding position be radially provided with it is multiple into There is apopore at water hole, cylinder bottom, and SMA one end is abutted with slide cartridge bottom surface, and the other end is abutted with push pipe, and push pipe is abutted with temperature adjustment screw rod, Push pipe perisporium also radially is provided with multiple limbers corresponding with hot water or cold water's import, and bias spring one end is supported with adjusting sliding sleeve Connect, the other end is then abutted with valve body, and SMA will be adjusted among sliding sleeve clamping to balance by slide cartridge and bias spring.Push pipe can be with The tep reel mandril for having multiple limbers by plate-like position is replaced.

First, in this kind of thermostatic valve core, bias spring（Or refer to the resetting spring often stated）One end is abutted with adjusting sliding sleeve, separately One end is then abutted with valve body, the one end to offset with adjusting sliding sleeve, the hot water flow channel being placed between water inlet of hot water and slide cartridge Interior, actual support of bias spring has blocked part water inlet of hot water, in this way, flow of inlet water of the hot water into thermostatic valve core will be influenced, Increase into water resistance, influence the actual use performance of thermostatic valve core.Secondly, the anti-string of water proof is equipped between the rear portion of slide cartridge and valve body The sealing ring of stream, between bias spring is placed in the sealing ring and adjusts sliding sleeve, this is hot water circulating area, so bias spring is complete Complete immersion is in water, and bias spring is generally steel, soaks get rusty easily in water for a long time, shortens its service life, together When the rust staining that bears will cause to adjust sliding sleeve movement bite, seriously affect the performance and service life of thermostatic valve core.

Utility model content

To solve problems of the prior art, the utility model provide a kind of structure improve, water inlet of hot water into Water is unobstructed, the thermostatic valve core of service life length.

The utility model provides following technical solution.

A kind of improved thermostatic valve core of structure, including it is provided with valve body cold water inlet, valve body water inlet of hot water and valve body The valve body of mixing water water outlet, body cavity are cold equipped with temperature adjustment component, SMA, bias spring and hot and cold water water inlet control assembly Hot water water inlet control assembly includes the first slide cartridge, the second slide cartridge, and the first slide cartridge is located at body cavity, two end face respectively with valve Body cold water inlet and valve body water inlet of hot water correspond to, and two end faces separately form cold water inlet valve with valve interior wall respectively With hot water inlet valve, the first slide cartridge and the second slide cartridge are fixedly connected, and hot and cold water water inlet control assembly is as an entirety in valve Slide axially in vivo；It is additionally provided with the slide cartridge water inlet of hot water corresponding to valve body water inlet of hot water on second slide cartridge perisporium, second Slide cartridge bottom is additionally provided with slide cartridge water outlet, and SMA is placed in the second slide cartridge and its lower end is abutted with the second slide cartridge bottom surface, SMA upper ends It is connected with temperature adjustment component 2；Bias spring upper end offsets with the second slide cartridge, and lower end offsets with valve body, is also installed on the second slide cartridge There is sealing ring four, be placed between bias spring and slide cartridge water inlet of hot water, SMA coordinates control hot and cold water water inlet with bias spring Control assembly acts axial movement certainly.

Further, the first slide cartridge is in band of column shape, its outer wall is equipped with the first slide cartridge sealed groove and is provided with sealing ring three； The inner cavity shaft section of first slide cartridge is in the middle expanding shape in undergauge both sides, its middle part undergauge section is equipped with slide cartridge internal thread.

Further, the second slide cartridge includes slide cartridge top, slide cartridge middle part, wherein slide cartridge lower part, slide cartridge top from top to bottom Pierce into the first slide cartridge to be spirally connected therewith assembling, slide cartridge internal thread is corresponded on the outer wall on slide cartridge top and is equipped with slide cartridge external screw thread；In slide cartridge The perisporium in portion is equipped with several slide cartridge water inlet of hot water, and the outside diameter in the middle part of slide cartridge is less than the interior of the first slide cartridge both sides extension diameter section Footpath, the gap between slide cartridge middle part outer wall and the first slide cartridge inner wall is for hot water flux, the first slide cartridge upper port to slide cartridge top Upper port part be that hot water or cold water enters in the second slide cartridge from cold water runner, hot water flux respectively to be mixed for cold water runner Close；The bottom of slide cartridge lower part is equipped with slide cartridge water outlet.

Further, the second slide cartridge stopper protrusion of evagination is equipped between in the middle part of slide cartridge and slide cartridge lower part, bias spring supports Connect and be contained between the second slide cartridge stopper protrusion and valve body, the sealing of the second slide cartridge is additionally provided with the outer wall of the second slide cartridge stopper protrusion Groove is simultaneously provided with sealing ring four.

Further, the inner cavity of valve body is equipped with cooling water inlet confined planes and hot water inlet confined planes, is correspondingly arranged at respectively The outside of valve body cold water inlet and valve body water inlet of hot water, two end faces and cooling water inlet confined planes and the hot water of the first slide cartridge The gap of import confined planes is respectively cold water inlet valve and hot water inlet valve.

Further, valve body includes upper valve body and valve bottom, and cooling water inlet confined planes are located above valve body cold water inlet, valve The upper surface at bottom is for hot water inlet confined planes.

Further, the inner cavity lower part at valve bottom is additionally provided with the valve base frame rank of undergauge, and bias spring abuts and is contained in the second cunning Between cylinder stopper protrusion and valve base frame rank.

Further, slide cartridge lower part protrudes downward from valve base frame rank.

Further, be additionally provided with tip-lever support between SMA and temperature adjustment component, tip-lever support both ends respectively with SMA, temperature adjustment component Offset.

Further, for tip-lever support in I-shaped, top and bottom is in the form of annular discs, is top plate, chassis respectively, top plate and bottom Disk is to be abutted for connecting rod, wherein top plate with temperature-regualting base, and chassis is abutted with SMA, and limbers is set on chassis.

The utility model compared with prior art, as an entirety in valve body axially slide by hot and cold water water inlet control assembly It is dynamic, and bias spring upper end offsets with the second slide cartridge, so that bias spring does not contact directly with water inlet of hot water, would not also block up Firmly water inlet of hot water, so as to ensure that the smoothness of hot water water inlet.Secondly, bias spring is contained in the second slide cartridge stopper protrusion and valve Between base frame rank, it is spaced with hot water water inlet, slide cartridge lower part preferably protrudes downward from valve base frame rank, and such current are directly from slide cartridge Water outlet to valve body mixing water water outlet flows out, and the water accumulating volume in valve bottom is seldom, avoids bias spring and excessively contacts current simultaneously It is immersed in for a long time in a large amount of water, the bias spring mounting design of the utility model will greatly prolong its service life, ensure The slip of hot and cold water water inlet control assembly is smooth, so as to not influence the performance and service life of thermostatic valve core.

Brief description of the drawings

Fig. 1 is the explosive view that the utility model embodiment provides thermostatic valve core.

Fig. 2 is the sectional view that the utility model embodiment provides thermostatic valve core.

Fig. 3 is the partial enlarged view in Fig. 2.

Fig. 4 is that the utility model embodiment provides hot and cold water water inlet control assembly sectional view.

Fig. 5 is the stereogram that the utility model embodiment provides the first slide cartridge.

Fig. 6 is the stereogram that the utility model embodiment provides the second slide cartridge.

Fig. 7 is the stereogram that the utility model embodiment provides tip-lever support.

Fig. 8 is another angle stereogram that the utility model embodiment provides tip-lever support.

In figure, 1, valve body；11st, upper valve body；111st, valve body stage casing；12nd, valve bottom；121st, valve base frame rank；13rd, valve body cold water into The mouth of a river；14th, valve body water inlet of hot water；15th, valve body mixing water water outlet；16th, cold water inlet valve；17th, hot water inlet valve； 18th, cooling water inlet confined planes；19th, cooling water inlet confined planes；2nd, temperature adjustment component；21st, temperature-regulating handle；22nd, temperature-regualting base；3、SMA； 4th, hot and cold water water inlet control assembly；41st, the first slide cartridge；411st, slide cartridge internal thread；412nd, the first slide cartridge sealed groove；42nd, second Slide cartridge；421st, slide cartridge top；422nd, in the middle part of slide cartridge；423rd, slide cartridge lower part；424th, slide cartridge water inlet of hot water；425th, slide cartridge water outlet Mouthful；426th, slide cartridge external screw thread；427th, the second slide cartridge stopper protrusion；428th, the second slide cartridge sealed groove；43rd, cold water runner；44th, it is hot Water flow passage；5th, bias spring；6th, tip-lever support；61st, top plate；62nd, connecting rod；63rd, chassis；64th, limbers；65th, position-arresting disk；71、 Sealing ring one；72nd, sealing ring two；73rd, sealing ring three；74th, sealing ring four；75th, sealing ring five.

Embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is used to illustrate the utility model, but is not intended to limit the scope of the present invention.

As shown in figures 1-8, provide a kind of thermostatic valve core in the present embodiment, including valve body 1 and be arranged on body cavity The temperature adjustment component 2 of operable cooperation, SMA3, bias spring 5, hot and cold water water inlet control assembly 4.

In the present embodiment, valve body 1 includes upper valve body 11 and valve bottom 12, valve body cold water inlet being arranged at intervals on upper valve body 11 13rd, valve body water inlet of hot water 14, the body portion among two water inlets are valve body stage casing 111, and the bottom at valve bottom 12 sets valve body Mixing water water outlet 15, valve body water inlet of hot water 14 be arranged on valve body cold water inlet 13 and valve body mixing water water outlet 15 it Between.Being respectively installed with valve body cold water inlet 13, the centre of valve body water inlet of hot water 14 and both sides prevents the close of leak string water Seal two, one, 5 72,71,75, corresponds to the valve seal groove for being set on valve body 1 and being used for housing sealing ring.

Temperature adjustment component 2 includes accessory, the temperature-regulating handle 21 such as temperature-regulating handle 21, temperature-regualting base 22 and clamp spring, small sealing ring and stretches out 11 termination of upper valve body, temperature-regulating handle 21 and 22 thread fitting of temperature-regualting base.

SMA3 entitled shape memory alloy springs entirely, its length vary with temperature by a relatively large margin flexible.

In the present embodiment, hot and cold water water inlet control assembly 4 includes the first slide cartridge 41, the second slide cartridge 42, the first slide cartridge 41 In body cavity, two end face is corresponding with valve body cold water inlet 13 and valve body water inlet of hot water 14 respectively, two end faces point Do not form cold water inlet valve 16 and hot water inlet valve 17 separately with valve interior wall, the first slide cartridge 41 and the second slide cartridge 42 are solid Fixed connection, hot and cold water water inlet control assembly 4 slide axially as an entirety in valve body 1；Also set on second slide cartridge, 42 perisporium There is the slide cartridge water inlet of hot water 424 corresponding to valve body water inlet of hot water 14,42 bottom of the second slide cartridge is additionally provided with slide cartridge water outlet 425, SMA3 are placed in the second slide cartridge 42 and its lower end is abutted with 42 bottom surface of the second slide cartridge, and SMA upper ends pass through tip-lever support 6 and temperature adjustment The temperature-regualting base 22 of component 2 abuts against, and tip-lever support 6 is used to provide a fixed abutment, actual so as to shorten the length of SMA Upper ejector pin seat 6 can also be replaced by tubular article with holes；5 upper end of bias spring offsets with the second slide cartridge 42, lower end and 1 phase of valve body Support, be also equipped with sealing ring 4 74 on the second slide cartridge 42, be placed between bias spring 5 and slide cartridge water inlet of hot water 424, SMA3 Control hot and cold water water inlet control assembly 4 is coordinated to be moved axially from action with bias spring 5.

The inner cavity of valve body 1 is equipped with cooling water inlet confined planes 18 and hot water inlet confined planes 19, is correspondingly arranged at valve body respectively The outside of cold water inlet 13 and valve body water inlet of hot water 14, specific cooling water inlet confined planes 18 are located at valve body cold water inlet 13 tops, the upper surface at valve bottom 12 is for hot water inlet confined planes 19.Two end faces of the first slide cartridge 41 and cooling water inlet are spacing Face 18 and the gap of hot water inlet confined planes 19 are respectively cold water inlet valve 16 and hot water inlet valve 17.

The cylinder height of first slide cartridge 41 is big compared with the spacing of valve body cold water inlet 13 and valve body water inlet of hot water 14, hot and cold The actual stream that turns of water enters cold water inlet valve 16 and hot water inlet valve 17, can so reduce hydraulic pressure, avoid side's hydraulic pressure excessive, More than the use scope of thermostatic valve core, cause temperature adjustment to be failed or there is a situation where adverse current string water.

Specifically, as in Figure 3-5, the first slide cartridge 41 is in band of column shape, its outer wall is equipped with the first slide cartridge sealed groove 412 simultaneously Sealing ring 3 73 is installed；The inner cavity shaft section of first slide cartridge 41 is in the middle expanding shape in undergauge both sides, its middle part undergauge Duan Shangshe There is slide cartridge internal thread 411.First slide cartridge 41 in body cavity sealing state lower slider, sealing ring 3 73 specifically with valve body stage casing 111 generations are in sealing contact.

Second slide cartridge 42 includes slide cartridge top 421, slide cartridge middle part 422, slide cartridge lower part 423 from top to bottom, wherein on slide cartridge Portion 421 pierces into the first slide cartridge 41 and is spirally connected therewith assembling, and slide cartridge internal thread 411 is corresponded on the outer wall on slide cartridge top 421 and is equipped with slide cartridge External screw thread 426；422 perisporium is equipped with several slide cartridge water inlet of hot water 424 in the middle part of slide cartridge, and the outside diameter at slide cartridge middle part 422 is small Gap between 41 inner wall of 422 outer walls and the first slide cartridge in the middle part of the internal diameter of 41 both sides extension diameter section of the first slide cartridge, slide cartridge is for heat Water flow passage 44, the upper port part of 41 upper port of the first slide cartridge to slide cartridge top 421 is for cold water runner 43, hot water or cold water's difference Enter from cold water runner 43, hot water flux 44 in the second slide cartridge 42 and mixed；The bottom of slide cartridge lower part 423 is equipped with slide cartridge water outlet Mouth 425.

In the present embodiment, 41 middle undergauge both sides of the first slide cartridge are expanding, the convenient installation that is spirally connected with the second slide cartridge 42（Certainly , also it is made of one regardless of the installation form that is limited to be spirally connected or clamping or directly, but the installation shape in the present embodiment Formula, slide cartridge structure is easy to process, is also convenient for dismounting）, while the tube wall of the first slide cartridge 41 and the second slide cartridge 42 is staggered, and forms flowing water Space, hot water runner 44, enables hot water to enter hot water inlet valve 17 and along hot water flux 44 from valve body water inlet of hot water 14 Into the slide cartridge water inlet of hot water 424 of the second slide cartridge 42.Comparatively cold water, directly enters hot water from valve body cold water inlet 13 Inlet valve 17, enters in the second slide cartridge 42 along the upper end opening of the first slide cartridge 41（Actual is cold water runner 43）.

The second slide cartridge stopper protrusion 427 of evagination is equipped with the middle part of slide cartridge between 422 and slide cartridge lower part 423, bias spring 5 supports Connect and be contained between the second slide cartridge stopper protrusion 427 and valve body, the second cunning is additionally provided with the outer wall of the second slide cartridge stopper protrusion 427 Cylinder sealed groove 428 is simultaneously provided with sealing ring 4 74.Second slide cartridge 42 is equally in body cavity sealing state lower slider, this implementation Sealing ring 4 74 and the inner wall at valve bottom 12 produce in sealing contact in example.Second slide cartridge stopper protrusion 427 both provided for bias spring 5 Bearing surface, while for setting the second slide cartridge sealed groove 428, avoid 42 barrel of the second slide cartridge is relatively thin from being unfavorable for processing.

The inner cavity lower part at valve bottom 12 is additionally provided with the valve base frame rank 121 of undergauge, and bias spring 5, which abuts, is contained in the second slide cartridge limit Between position convex portion 427 and valve base frame rank 121.It is preferred that slide cartridge lower part 423 protrudes downward from valve base frame rank 121.Of course valve base frame Sealing ring can be added on rank 121 or slide cartridge lower part 423, bias spring 5 can be made to completely cut off with water completely.So make bias spring 5 most It may be soaked in less in water, extend its service life.

In the present embodiment, hot and cold water water inlet control assembly 4 slides axially as an entirety in valve body 1, and biases bullet 5 upper end of spring offsets with the second slide cartridge 42, so that bias spring 5 does not contact directly with water inlet of hot water 14, would not also block heat Water water inlet 14, so as to ensure that the smoothness of hot water water inlet.Secondly, bias spring 5 be contained in the second slide cartridge stopper protrusion 427 with Between valve base frame rank 121, it is spaced with hot water water inlet, slide cartridge lower part 423 preferably protrudes downward from valve base frame rank 121, such water Stream is directly flowed out from slide cartridge water outlet 425 to valve body mixing water water outlet 15, and the water accumulating volume in valve bottom 12 is seldom, avoids biasing Spring 5 directly contacts current and is immersed in for a long time in a large amount of water, and 5 mounting design of bias spring of the utility model will prolong significantly Its long service life, has ensured that the slip of hot and cold water water inlet control assembly 4 is smooth, so as to not influence the performance of thermostatic valve core With service life.

As shown in Fig. 2,7,8, tip-lever support 6 is in I-shaped, and top and bottom is in the form of annular discs, is top plate 61, chassis respectively 63, top plate 61 and chassis 63 are to be abutted for connecting rod 62, wherein top plate 61 with temperature-regualting base 22, and chassis 63 is abutted with SMA3, chassis Limbers 64 is set on 63.Room between top plate 61 and chassis 63 is used to intake.The setting height(from bottom) on chassis 63 is in valve body cold water Between water inlet 13 and valve body water inlet of hot water 14.Thus, tip-lever support 6 can shorten its bar portion length only into water all the way.And cold water Release first is shunted by multiple limbers 64, then is mixed with hot water in the second slide cartridge 42, so can preferably reduce cold water stream pair The resistance of hot water water inlet, avoids thermostatic valve core from causing adverse current string water because cold water pressure is more than heat hydraulic pressure in use.

A kind of counterflow-preventing thermostatic valve core using shape memory alloy spring disclosed in China's patent（Application No. 201010620357.1）, two kinds of thermostatic valve cores and corresponding jacking pipe structure are wherein provided in embodiment two, three.In the patent, top The structure of pipe is more complicated, its perisporium also radially is provided with multiple limbers corresponding with hot water or cold water's import, not easy to be processed, Cost is also larger.To simplify structure, the tep reel mandril that push pipe can be had multiple limbers by plate-like position is replaced.And tep reel top The structure of bar includes a bar portion and a pan portion known to figure, and one end of the rod is directly abutted against with temperature adjustment screw rod, and contact area is small, point Support it is ineffective, easily with the telescopic adjustment of temperature adjustment screw rod and double swerve, stability are bad, and if in temperature adjustment screw rod End perforate house the bar portion of tep reel mandril, to coordinate bar portion, the precision in hole is more demanding, this will increase temperature adjustment screw rod Difficulty of processing, improves processing cost indirectly.

In the present embodiment, top plate 61 belongs to face with temperature-regualting base 22 and contacts, contact area bigger, even do not set on temperature-regualting base 22 Storage tank can also make what tip-lever support 6 stablized to be connected in valve body 1, be provided with accommodating top plate 61 in the present embodiment on temperature-regualting base 22 Shallow slot, as shown in Fig. 2, so more improve tip-lever support 6 install, stability in use.

The bottom on chassis 63 is additionally provided with position-arresting disk 65, and the radius of position-arresting disk 65 is less than the radius on chassis 63, and position-arresting disk 65 can In spring ring to loading SMA3.The spring ring of SMA3 is resisted against the step indentation, there of chassis 63 and position-arresting disk 65.Limbers 64 To pass through the clear opening on chassis 63 and position-arresting disk 65.Such tip-lever support 6 more stable can be placed between temperature-regualting base 22 and SMA3, when When regulation handle 21 rotates, tip-lever support 6 is not easy to rock, and can stablize conduction makes SMA3 compress or expand, so as to drive hot and cold water Water inlet control assembly 4 moves downward or upward, and SMA3 reverts to nature, but corresponding bias spring 5 be in opposite compression or Swelling state, to set required leaving water temperature.

The thermostatic valve core that the present embodiment is provided in an assembling process, first with upper valve body 1 realize and assemble, cold by temperature adjustment component 2 The first slide cartridge 41 and the second slide cartridge 42 of hot water water inlet control assembly 4 are threadedly coupled composition one, and SMA3 is put into the second slide cartridge In 42, tip-lever support 6 is placed in above SMA3 again, and position-arresting disk 65, which supports, to be loaded in the spring ring of SMA3, will then include SMA3, tip-lever support 6 hot and cold water water inlet control assembly 4 with the first slide cartridge 41 upward direction plug load upper valve body 1 in, the top plate 61 of tip-lever support 6 with Temperature-regualting base 22 abuts；Then upper offset spring 5 is set with 423 outer wall of slide cartridge lower part of the second slide cartridge 42, finally by valve bottom 12 It is spirally connected fixation with upper valve body 11, lower face and the valve base frame rank 121 of bias spring 5 offset, and complete the assembling of thermostatic valve core.

The thermostatic valve core that the present embodiment is provided in use, with reference to shown in Fig. 2, Fig. 3, cold water from valve body cold water into The mouth of a river 13 enters cold water inlet valve 16, passes sequentially through cold water runner 43, the limbers 64 of tip-lever support 6 enters the second slide cartridge 42 In 422 in the middle part of slide cartridge, contacted with SMA3；Hot water enters hot water inlet valve 17 from valve body water inlet of hot water 14, passes sequentially through heat Water water flow passage 43, slide cartridge water inlet of hot water 424 enter in 422 in the middle part of the slide cartridge of the second slide cartridge 42, are contacted with SMA3；Hot water or cold water The mixing in the second slide cartridge 42, the change of SMA3 temperature sensors, mixing water go out from slide cartridge water outlet 425, valve body mixing water successively again The mouth of a river 15 is flowed out, and is subsequently used.

When SMA3 perception mixing water temperature is higher, SMA3 upper ends are pushed up by tip-lever support 6 and are remained stationary as, its expansion makes cold and hot Water water inlet control assembly 4 is overall to be moved down, so as to drive 17 aperture of hot water inlet valve to diminish, 16 aperture of cold water inlet valve becomes Greatly, so as to increase hot water or cold water's water inlet ratio, so that mixing water temperature declines, thermostatic valve core is able to constant-temperature effluent.

When SMA3 perception mixing water temperature is relatively low, SMA3 upper ends are pushed up by tip-lever support 6 and are remained stationary as, it will shrink, Between the expansion of bias spring 5 that tightens make hot and cold water water inlet control assembly 4 is overall to move up, so as to drive hot water inlet valve 17 to open Degree becomes larger, and 16 aperture of cold water inlet valve diminishes, so that reduce hot water or cold water's water inlet ratio, so that mixing water temperature rises, and constant temperature Spool is able to constant-temperature effluent.

SMA3, from axial movement is acted, adjusts hot water or cold water with the cooperation control hot and cold water water inlet control assembly 4 of bias spring 5 Water inlet ratio, achievees the purpose that constant-temperature effluent.

The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model；Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (10)

1. the improved thermostatic valve core of structure, including it is provided with valve body cold water inlet（13）, valve body water inlet of hot water（14）And valve Body mixing water water outlet（15）Valve body（1）, valve body（1）Inner cavity is equipped with temperature adjustment component（2）、SMA（3）, bias spring（5）And Hot and cold water water inlet control assembly（4）, it is characterised in that：Hot and cold water water inlet control assembly（4）Including the first slide cartridge（41）, second slide Cylinder（42）, the first slide cartridge（41）Positioned at body cavity, two end face respectively with valve body cold water inlet（13）With valve body hot water Water inlet（14）Corresponding, two end faces separately form cold water inlet valve with valve interior wall respectively（16）With hot water inlet valve （17）, the first slide cartridge（41）With the second slide cartridge（42）It is fixedly connected, hot and cold water water inlet control assembly（4）As an entirety in valve Body（1）Inside slide axially；Second slide cartridge（42）It is additionally provided with perisporium corresponding to valve body water inlet of hot water（14）Slide cartridge hot water Water inlet（424）, the second slide cartridge（42）Bottom is additionally provided with slide cartridge water outlet（425）, SMA（3）It is placed in the second slide cartridge（42）It is interior and Its lower end and the second slide cartridge（42）Bottom surface abuts, SMA upper ends and temperature adjustment component（2）It is connected；Bias spring（5）Upper end and second Slide cartridge（42）Offset, lower end and valve body（1）Offset, the second slide cartridge（42）On be also equipped with sealing ring four（74）, it is placed in biasing Spring（5）With slide cartridge water inlet of hot water（424）Between, SMA（3）With bias spring（5）Coordinate control hot and cold water water inlet control group Part（4）Moved axially from action.

2. the improved thermostatic valve core of structure as claimed in claim 1, it is characterised in that the first slide cartridge（41）In band of column shape, its Outer wall is equipped with the first slide cartridge sealed groove（412）And sealing ring three is installed（73）；First slide cartridge（41）Inner cavity shaft section be in The middle expanding shape in undergauge both sides, its middle part undergauge section are equipped with slide cartridge internal thread（411）.

3. the improved thermostatic valve core of structure as claimed in claim 2, it is characterised in that the second slide cartridge（42）Include from top to bottom Slide cartridge top（421）, in the middle part of slide cartridge（422）, slide cartridge lower part（423）, wherein slide cartridge top（421）Pierce into the first slide cartridge（41）With The assembling that is spirally connected, slide cartridge top（421）Outer wall on correspond to slide cartridge internal thread（411）Equipped with slide cartridge external screw thread（426）；In slide cartridge Portion（422）Perisporium be equipped with several slide cartridge water inlet of hot water（424）, slide cartridge middle part（422）Outside diameter be less than the first slide cartridge （41）The internal diameter of both sides extension diameter section, slide cartridge middle part（422）Outer wall and the first slide cartridge（41）Gap between inner wall is for hot water stream Road（44）, the first slide cartridge（41）Upper port is to slide cartridge top（421）Upper port part be for cold water runner（43）, hot water or cold water Respectively from cold water runner（43）, hot water flux（44）Into the second slide cartridge（42）Inside mixed；Slide cartridge lower part（423）Bottom Equipped with slide cartridge water outlet（425）.

4. the improved thermostatic valve core of structure as claimed in claim 3, it is characterised in that in the middle part of slide cartridge（422）With slide cartridge lower part （423）Between be equipped with evagination the second slide cartridge stopper protrusion（427）, bias spring（5）Abutting is contained in the second slide cartridge limit convex Portion（427）Between valve body, the second slide cartridge stopper protrusion（427）Outer wall on be additionally provided with the second slide cartridge sealed groove（428）And Sealing ring four is installed（74）.

5. the improved thermostatic valve core of structure as claimed in claim 1, it is characterised in that valve body（1）Inner cavity be equipped with cold water into Mouth confined planes（18）With hot water inlet confined planes（19）, valve body cold water inlet is correspondingly arranged at respectively（13）With valve body hot water into The mouth of a river（14）Outside, the first slide cartridge（41）Two end faces and cooling water inlet confined planes（18）With hot water inlet confined planes（19） Gap be respectively cold water inlet valve（16）With hot water inlet valve（17）.

6. the improved thermostatic valve core of structure as described in claim 4 or 5, it is characterised in that valve body（1）Including upper valve body（11） With valve bottom（12）, cooling water inlet confined planes（18）Positioned at valve body cold water inlet（13）Top, valve bottom（12）Upper surface be for Hot water inlet confined planes（19）.

7. the improved thermostatic valve core of structure as claimed in claim 6, it is characterised in that valve bottom（12）Inner cavity lower part be additionally provided with The valve base frame rank of undergauge（121）, bias spring（5）Abutting is contained in the second slide cartridge stopper protrusion（427）With valve base frame rank（121） Between.

8. the improved thermostatic valve core of structure as claimed in claim 7, it is characterised in that slide cartridge lower part（423）Protrude downward from Valve base frame rank（121）.

9. the improved thermostatic valve core of structure as claimed in claim 1, it is characterised in that SMA（3）With temperature adjustment component（2）Between It is additionally provided with tip-lever support（6）, tip-lever support（6）Both ends respectively with SMA（3）, temperature adjustment component（2）Offset.

10. the improved thermostatic valve core of structure as claimed in claim 9, it is characterised in that tip-lever support（6）In I-shaped, top It is in the form of annular discs with bottom, it is top plate respectively（61）, chassis（63）, top plate（61）With chassis（63）It is for connecting rod（62）, its Middle top plate（61）With temperature-regualting base（22）Abut, chassis（63）With SMA（3）Abut, chassis（63）Upper setting limbers（64）.