CN209146424U - A kind of thermostatic valve core - Google Patents
A kind of thermostatic valve core Download PDFInfo
- Publication number
- CN209146424U CN209146424U CN201821388054.XU CN201821388054U CN209146424U CN 209146424 U CN209146424 U CN 209146424U CN 201821388054 U CN201821388054 U CN 201821388054U CN 209146424 U CN209146424 U CN 209146424U
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- valve body
- lower valve
- sliding block
- bias spring
- memory alloy
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Abstract
The utility model discloses a kind of thermostatic valve cores, including upper valve body and lower valve body connected to it, shape memory alloy spring and sliding block are provided in the inner cavity of the lower valve body, bias spring set is set in the shape memory alloy spring, bias spring is set in the bias spring set and the bottom cover by being located at bottom limits it, wherein, the side wall of the lower valve body sets gradually hot water inlet from top to bottom, cooling water inlet and water outlet, the bottom of the lower valve body is equipped with step, the lower valve body bottom centre is equipped with perforative central through hole, uniformly distributed apopore is equipped in the lower valve body around central through hole, the side wall of the lower valve body is provided with water outlet.The utility model can guarantee that the volume of thermostatic valve core is simplified, and efficiently solve due to limitation water flow and lead to thermostatic valve core temperature control performance and the unstable phenomenon of properties.
Description
Technical field
The utility model relates to a kind of spools, and specifically, the utility model relates to one kind to be suitable for such as shower facilities
Thermostatic valve core.
Background technique
Existing thermostatic valve core uses paraffin thermometer bulb as temperature-sensitive element mostly.Its disadvantage are as follows:
One, the sealing element category vulnerable part that paraffin driving needs, and occupied space is larger, and temperature control effect can be lost after damage,
There are biggish security risks；
Two, the temperature range of paraffin driving is relatively narrow, and belongs to unexpected release when driving, and thermal gradient model formula is be easy to cause to become
Change, influences the comfort taken a shower.
In addition, also there is the spool using marmem, but it is due to internal structure complexity, typically result in size compared with
Greatly.
The applicant's earlier application application No. is 2018210785810 thermostatic valve cores, bias spring is placed in shape
Shape memory alloys spring inner, it is only necessary to replace core temperature control original part and bias spring, so that it may which the paraffin before instead is permanent
Warm spool saves raw material to reduce the size of the spool.But after limitation water flow, thermostatic valve core properties may
It can be impacted, it is therefore necessary to continue to improve thermostatic valve core.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of thermostatic valve cores, can simplify structure design, subtract
Small size efficiently solves due to limitation water flow and leads to thermostatic valve core temperature control performance and properties are unstable shows
As.
In order to solve the above-mentioned technical problem, the utility model adopts the technical scheme that a kind of thermostatic valve core, including upper
Valve body and lower valve body connected to it, upper valve body and lower valve body connected to it are provided with shape in the inner cavity of the lower valve body
Memory alloy spring and sliding block, the shape memory alloy spring is interior to be arranged bias spring set, sets in the bias spring set
Bias spring simultaneously limits it by the bottom cover positioned at bottom, wherein the side wall of the lower valve body sets gradually heat from top to bottom
Water inlet, cooling water inlet and water outlet, the bottom of the lower valve body are equipped with step, and the lower valve body bottom centre is equipped with perforative
Central through hole, uniformly distributed apopore is equipped in the lower valve body around central through hole, the side wall of the lower valve body is provided with water outlet
Mouthful.
Above-mentioned thermostatic valve core, wherein the shape memory alloy spring is securely fitted within lower valve body bottom stage,
The upper end of the bias spring set has been pierced by mandril, and bias spring set bottom passes through lower valve body central through hole, the biasing
Spring pocket and lower valve body bottom centre through-hole are clearance fit.
Above-mentioned thermostatic valve core, wherein the sliding block is connected to the upper outside of the bias spring set and by the shape
There are several to run through through-hole, the upper valve along its short transverse for the elastic acting force of shape memory alloys spring, the sliding block
The bottom thread of body installation and adjustment knob, the adjusting knob connects adjusting block, and the end of the mandril is penetrated to the adjusting
In the mounting hole that block is opened up.
Above-mentioned thermostatic valve core, wherein groove is opened up at the top of the sliding block, the bottom of the sliding block opens up annular groove,
It is described to be connected to the groove and the annular groove through through-hole.
Above-mentioned thermostatic valve core, wherein blossom type gasket is set between the sliding block and the shape memory alloy spring,
The blossom type gasket has the bottom that contacts with the shape memory alloy spring and by the bottom towards the annular
The central projection that slot extends, the shape memory alloy spring apply elasticity to the sliding block by the blossom type gasket and make
Firmly.
Above-mentioned thermostatic valve core, wherein the adjusting knob is limited on the upper valve body by circlip.
Above-mentioned thermostatic valve core, wherein the circumferential of the adjusting knob is provided with the first sealing between the upper valve body
Circle and the second sealing ring.
Above-mentioned thermostatic valve core, wherein third sealing ring is provided between the sliding block and the lower valve body.
Above-mentioned thermostatic valve core, wherein the step is the step cutting pattern for fixed memory spring position, the biasing
Spring pocket bottom and lower valve body bottom are inlayed together, and the number of the apopore is 8.
Compared with prior art, the utility model has the beneficial effects that: the structure using optimization designs, lower valve body bottom
It is used for fixed memory spring position equipped with step cutting pattern, is in memory spring active force on valve axis, bottom is equipped with center
Through-hole, bias spring set avoid sliding block in bias structure from going out at work across lower valve body central through hole, fixed bias spring pocket
It now tilts, uniformly distributed apopore is provided with around central through hole, lower valve body sidewall is provided with water outlet, and it is big to increase exhalant canal
Influence that is small, having maximally reduced the variation of limiting condition lower valve body internal pressure and flowed back to spool temperature control effect.
Detailed description of the invention
Fig. 1 is the schematic diagram of one embodiment of the thermostatic valve core of the utility model；
Fig. 2 is the schematic diagram of bias spring set in Fig. 1；
Fig. 3 is the schematic diagram of sliding block in Fig. 1；
Fig. 4 is top view corresponding with Fig. 3；
Fig. 5 is the top view of blossom type gasket in Fig. 1；
Fig. 6 is the schematic diagram of adjusting block in Fig. 1；
Fig. 7 is top view corresponding with Fig. 6；
Fig. 8 is the lower valve body schematic diagram in Fig. 1；
Fig. 9 is top view corresponding with Fig. 8.
Description of symbols
1- adjusting knob；2- upper valve body；3- mandril；4- hot water inlet；5- cooling water inlet；6- blossom type gasket；7- lower valve
Body；8- water outlet；9- circlip；The first sealing ring of 10-；The second sealing ring of 11-；12- adjusting block；13- sliding block；The sealing of 14- third
Circle；15- bias spring set；16- shape memory alloy spring；17- bias spring；18- bottom cover；19- runs through through-hole；20- is recessed
Slot；21- annular groove；22- side wall water outlet；23- step；24- central through hole；The bottom 25- apopore.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as practical to this
Novel restriction.
It referring to Fig.1 and combines shown in Fig. 2-Fig. 7, the thermostatic valve core of the utility model, including upper valve body 2 and is connected thereto
Lower valve body 7, the side wall setting hot water inlet 4 and cooling water inlet 5 of lower valve body 7, water outlet is arranged in the bottom of lower valve body 7 and side wall
8, hot water inlet 4 is for accessing hot water, and cooling water inlet 5 is for accessing cold water, after the two mixing, exports thermostatted water by water outlet 8.
It is provided with shape memory alloy spring 16 (i.e. SMA spring) and sliding block 13 in the inner cavity of lower valve body 7, introduces individually below.
As shown in Figure 1, setting bias spring covers 15, as shown in connection with fig. 2, bias spring in shape memory alloy spring 16
Set 15 has inner hole, and external screw thread is arranged in the top of bias spring set 15, and internal screw thread is arranged in bottom.It is provided with partially in bias spring set 15
It sets spring 17 and the bottom cover 18 for covering 15 bottoms by being located at bias spring limits bias spring 17, the bottom cover 18 and biasing
Spring pocket 15 is preferably using threaded connection.The upper end of bias spring set 15 has been pierced by mandril 3, which is inverted T font, T-type
Head, which is located in bias spring set 15, to be limited, and avoids mandril 3 by 15 abjection of bias spring set, the bar portion of mandril 3 is by biasing bullet
Spring set 15 extends, and contacts with the subsequent adjusting block 12 referred to.
As shown in Figure 1, sliding block 13 is connected to the upper outside of bias spring set 15 and by shape memory alloy spring 16
Elastic acting force.In conjunction with shown in Fig. 3, Fig. 4, sliding block 13 is preferably threadedly coupled with bias spring set 15, and sliding block 13 opens up internal screw thread,
The external screw thread for covering 15 tops with bias spring matches.In addition, there are sliding block 13 several to run through through-hole along its short transverse
19, this several be uniformly distributed through through-hole along the circumferential direction of sliding block 13.The top of sliding block 13 opens up groove 20, the bottom of sliding block 13
Portion opens up annular groove 21, runs through 19 communication groove 20 of through-hole and annular groove 21, to realize that short transverse penetrates through.Hot water passes through
Hot water inlet 4 flows through the cold water mix through through-hole 19 and inflow cooling water inlet 5 on sliding block 13, shape memory alloy spring
16 pass through the variation up and down adjustment sliding block 13 of mixing water temperature, and sliding block 13 moves up and down changeable hot water inlet 4 and cooling water inlet 5
Channel sized, realize effluent temperature constancy.
Bias spring set 15 by bottom cover 18 will bias spring 17 it is fixed and in being wrapped in, with shape memory alloy spring
16, sliding block 13 forms bias structure, and this bias structure in the same center of circle guarantees sliding block 13, bias spring 17, shape note
Recall alloy spring 16 to move up and down on the same axis, improves stable temperature control.At bias spring set 15 and bias spring 17
Inside shape memory alloy spring 16, the volume of thermostatic valve core can be maximally reduced.Sliding block 13 and bias spring set
15 are threadedly engaged to form an entirety and can move axially up and down.Bias spring 17, bias spring set 15 and marmem bullet
Spring 16 form bias structure, balance is reached by above-mentioned 17 decrement of change bias spring, thus realization adjust above and below it is hot and cold
Water inlet size and the purpose for switching hot water or cold water's import.
In the present embodiment, blossom type gasket 6 is set between sliding block 13 and shape memory alloy spring 16, as shown in connection with fig. 5,
Blossom type gasket 6 has the bottom contacted with shape memory alloy spring 16 and the centre extended by bottom towards annular groove 21
Protruding portion, the central projection are inserted into the annular groove 21 of sliding block 13, and shape memory alloy spring 16 passes through blossom type gasket 6
Elastic acting force is applied to sliding block 13.Blossom type gasket 6 can be avoided hot water or cold water and directly wash away shape memory alloy spring 16,
And plays the role of a point water pressure stabilizing, guarantee that mixing water energy equably comes into full contact with shape memory alloy spring 16, reduce
Influences of the water pressure fluctuations to temperature control effect.
Continuing with referring to Fig. 8 and Fig. 9,7 bottom of lower valve body is equipped with step 23 in the present embodiment, central through hole 24, bottom go out
Water hole 25 and side wall water outlet 22 increase exhalant canal size, reduce the variation of limiting condition lower valve body internal pressure and reflux
Influence to spool temperature control effect.Shape memory alloy spring 16 is assemblied within the bottom stage 23 of lower valve body 7, keeps shape
16 active force of memory spring is in bias structure center, and bias spring set 15 is inserted into the central through hole 24 of lower valve body 7, in
Heart through-hole 24 is clearance fit, and fixed shape memory alloy spring 16 and bias spring set 15 act on bias structure active force
In spool center, the bad acting of bias structure is eliminated, while bias spring is covered into 15,18 bottom surface of bottom cover and is in lower valve body 7
It is external.Step 23 is step cutting pattern, is used for fixed memory spring position, and bias spring set bottom 15 is inlayed with 7 bottom of lower valve body
Together, the number of apopore is preferably 8.
The present invention lower valve body 7 on the basis of the original, be modified, increase side water outlet, bottom increases 8
Uniformly distributed water outlet；Bottom increases step 23 according to the outer diameter of SMA spring.It has the advantages that one: increasing out the water surface
Product, so that thermostatic valve core is in the case where limiting flow, the water pressure of reflux does not concentrate on water outlet；So that bias spring
Opposition when 15 bottoms are not flowed back by mixing water is covered, the forced area of sliding block 13 is reduced.Two, the fixed SMA of bottom stage
Spring, fixed bias spring pocket 15 are in valve body center, so that fixed sliding block 13, makes sliding block 13 not incline at work
Tiltedly.
Continue as shown in Figure 1,2 installation and adjustment knob 1 of upper valve body, the adjusting knob 1 pass through the matching step with upper valve body 2
It limits, adjusting knob 1 is avoided to be deviate from by the upper end of upper valve body 2.In conjunction with shown in Fig. 6, Fig. 7, the bottom thread of adjusting knob 1 connects
Connect adjusting block 12, it can multiple thread is opened up in the bottom circular aperture of adjusting knob 1, adjusting block 12 and the multiple thread carry out
Connection.The shape of adjusting block 12 is " convex " font, and adjusting block 12 can be along the axial movement of spool, the bottom of adjusting block 12
Mounting hole is arranged in the bottom of adjusting block 12 in regular hexagonal prism shape, which can choose as blind hole, and the end of mandril 3 penetrates
In the mounting hole opened up to adjusting block 12.Driven adjusting block 12 that can move axially up and down by adjusting knob 1, about 12 adjusting block
Mandril 3 is adjusted when mobile and generates displacement, the decrement of bias spring 17 is adjusted, to achieve the purpose that set temperature.Preferably,
Adjusting knob 1 is limited on upper valve body 2 by circlip 9.In this way, adjusting knob 1 can only rotate, and cannot move up and down.
In addition, being provided with the first sealing ring 10 and the second sealing ring 11 between the circumferential direction and upper valve body 2 of adjusting knob 1.Class
As, third sealing ring 14 is provided between sliding block 13 and lower valve body 7.
When the utility model assembles, each valve body and temperature-controlling component erection sequence:
1. mandril 3 and bias spring 17 are sequentially placed into bias spring set 15, and 15 bottom cover 18 is covered with bias spring
It is fixed；
2. bias spring set 15 is mounted to an entirety by screw thread and sliding block 13；
3. the bias spring set 15 of shape memory alloy spring 16, blossom type gasket 6 and above-mentioned completion assembling is successively put
Enter in lower valve body 7；
4. upper valve body 2 and adjusting knob 1 is fixed by circlip 9, adjusting block 12 is by means of the bull spiral shell on adjusting knob 1
Line connection is mounted to an entirety.The lower valve body 7 assembled is installed with upper valve body 2 by being threadedly engaged.
The utility model water (flow) direction are as follows: cooling water inlet 5 is between hot water inlet 4 and water outlet 8.Hot water passes through heat
Water inlet 4 enter upper valve body 2 it is intracavitary, cold water by cooling water inlet 5 enter lower valve body 7 in, hot water via sliding block 13 groove 20
And the cold water mix in through-hole 19 and lower valve body 7.It is exported in the water of shape memory alloy spring 16 after thorough mix-ing
Strength changes, and bias structure makes sliding block 13 reach balance, so that the ratio of the hot water or cold water of independent water inlet valve chamber occurs
Change, by carrying out feedback regulation to leaving water temperature, to realize the temperature control effect of effluent temperature constancy.
After the utility model sets leaving water temperature, bias structure balance of power.Since water outlet temperature setting is in shape memory
In the characteristic range of alloy spring 16, so, if because the suddenly change of certain reason such as pressure of supply water and temperature causes water
Temperature fluctuates, and the elasticity modulus of shape memory alloy spring 16 will vary widely, and cause shape memory alloy spring
Corresponding change occurs for 16 strength, to break original balance of power, the axial movement of about 13 sliding block is pushed to change into cold
The ratio of water and hot water.Because taking negative feedback control, the leaving water temperature of thermostatic valve automatically restores to what original needs controlled quickly
Near temperature, and new balance is re-established to keep the constant of leaving water temperature in this temperature.
The utility model not only can simplify valve body structure design using shape memory alloy spring, maximally reduce
Valve volume saves raw material, can also realize the near-linear intelligent drives in big temperature range, temperature change is avoided to bring not
Suitable situation, improves safety, comfort, intelligence and the service life of thermostat valve.
The utility model avoids the phenomenon that bias structure tilts at work, eliminates the bad workmanship of bias structure, leads to
Increase exhalant canal size is crossed, the shadow for reducing the variation of limiting condition lower valve body internal pressure and flowing back to spool temperature control effect
It rings, guarantees the stability of spool.
The utility model spool easy processing, mass stability, consistency are good.And can with largely deposit on the market at present
Paraffin thermostatic valve core be interchangeable, it is only necessary to core temperature control original part and bias spring are replaced, so that it may before instead
Paraffin thermostatic valve core.Bias spring is in inside copper sheathing by the utility model, and elastic force caused by bias spring is passed by mandril
It is delivered on sliding block, is not contacted directly with sliding block, avoid the inconsistent shadow to spool performance as caused by spring end face processing
It rings.The valve body structure and temperature-controlling component of the utility model have well solved hot and cold water and cannot be sufficiently mixed and marmem
Spring is in the problem of stablizing thermal field, to realize temperature control, stable purpose of rising again.
Above embodiments are only the exemplary embodiment of the utility model, are not used in limitation the utility model, this is practical new
The protection scope of type is defined by the claims.Those skilled in the art can be in the essence and protection scope of the utility model
It is interior, various modifications or equivalent replacements are made to the utility model, this modification or equivalent replacement also should be regarded as falling in originally practical new
In the protection scope of type.
Claims (9)
1. a kind of thermostatic valve core, including upper valve body and lower valve body connected to it, shape is provided in the inner cavity of the lower valve body
Memory alloy spring and sliding block, the shape memory alloy spring is interior to be arranged bias spring set, sets in the bias spring set
Bias spring simultaneously limits it by being located at the bottom cover of bottom, which is characterized in that the side wall of the lower valve body is from top to bottom successively
Hot water inlet, cooling water inlet and water outlet are set, and the bottom of the lower valve body is equipped with step, and the lower valve body bottom centre is equipped with
Perforative central through hole, uniformly distributed apopore is equipped in the lower valve body around central through hole, the side wall of the lower valve body is arranged
There is water outlet.
2. thermostatic valve core according to claim 1, which is characterized in that the shape memory alloy spring is securely fitted in down
Within body base step, the upper end of the bias spring set has been pierced by mandril, and bias spring set bottom passes through lower valve body
Central through hole, the bias spring set and lower valve body bottom centre through-hole are clearance fit.
3. thermostatic valve core according to claim 2, which is characterized in that the sliding block is connected to the upper of the bias spring set
On the outside of portion and by the elastic acting force of the shape memory alloy spring, the sliding block has several passing through along its short transverse
The bottom thread of reach through hole, the upper valve body installation and adjustment knob, the adjusting knob connects adjusting block, the end of the mandril
It penetrates in the mounting hole opened up to the adjusting block.
4. thermostatic valve core according to claim 3, which is characterized in that open up groove, the sliding block at the top of the sliding block
Bottom open up annular groove, it is described to be connected to the groove and the annular groove through through-hole.
5. thermostatic valve core according to claim 4, which is characterized in that the sliding block and the shape memory alloy spring it
Between blossom type gasket is set, the blossom type gasket has the bottom that contacts with the shape memory alloy spring and by described
The central projection that bottom extends towards the annular groove, the shape memory alloy spring is by the blossom type gasket to institute
It states sliding block and applies elastic acting force.
6. thermostatic valve core according to claim 3, which is characterized in that the adjusting knob is limited on described by circlip
On valve body.
7. thermostatic valve core according to claim 3, which is characterized in that the circumferential direction of the adjusting knob and the upper valve body it
Between be provided with the first sealing ring and the second sealing ring.
8. thermostatic valve core according to claim 7, which is characterized in that be provided between the sliding block and the lower valve body
Three sealing rings.
9. described in any item thermostatic valve cores according to claim 1~8, which is characterized in that the step is for fixed memory
The step cutting pattern of spring position, the bias spring set bottom and lower valve body bottom are inlayed together, the number of the apopore
It is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821388054.XU CN209146424U (en) | 2019-03-28 | 2019-03-28 | A kind of thermostatic valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821388054.XU CN209146424U (en) | 2019-03-28 | 2019-03-28 | A kind of thermostatic valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209146424U true CN209146424U (en) | 2019-07-23 |
Family
ID=67266674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821388054.XU Active CN209146424U (en) | 2019-03-28 | 2019-03-28 | A kind of thermostatic valve core |
Country Status (1)
| Country | Link |
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| CN (1) | CN209146424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566692A (en) * | 2019-10-10 | 2019-12-13 | 陕西群德材料科技有限公司 | Memory alloy thermostatic valve core for feeding hot water downwards |
-
2019
- 2019-03-28 CN CN201821388054.XU patent/CN209146424U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566692A (en) * | 2019-10-10 | 2019-12-13 | 陕西群德材料科技有限公司 | Memory alloy thermostatic valve core for feeding hot water downwards |
| CN110566692B (en) * | 2019-10-10 | 2024-03-22 | 陕西群德材料科技有限公司 | Memory alloy constant temperature valve core for downward hot water feeding |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A thermostatic valve core Effective date of registration: 20230130 Granted publication date: 20190723 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: SHAANXI QUNDE MATERIAL SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2023610000071 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |