CN202040373U - Anti-scald hot water valve - Google Patents
Anti-scald hot water valve Download PDFInfo
- Publication number
- CN202040373U CN202040373U CN2011201186118U CN201120118611U CN202040373U CN 202040373 U CN202040373 U CN 202040373U CN 2011201186118 U CN2011201186118 U CN 2011201186118U CN 201120118611 U CN201120118611 U CN 201120118611U CN 202040373 U CN202040373 U CN 202040373U
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- China
- Prior art keywords
- baffle plate
- hot water
- scald
- piston
- water
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- Expired - Fee Related
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Abstract
The utility model provides an anti-scald hot water valve, belonging to the technical field of hot water equipment. The anti-scald hot water valve comprises an inverted T-shaped pipe body and a piston, wherein the piston is movably connected with one end of the pipe body; and a water tap is connected with the other end of the pipe body. By adopting the integrated mechanical structure, the scalding problem of the hot water can be solved independently.
Description
Technical field
The utility model relates to a kind of device of mechanical structure technical field, specifically is a kind of anti-scald hot-water valve.
Background technique
When water temperature surpassed certain limit, valve will be independently closed.This product comes throttle down by the contractile force of peculiar alloy.It is 60 ℃ that human oral cavity can bear the water temperature limit, and surpassing this temperature can cause ulcer to burn of oral cavity, and the limiting temperature that health can bear is about 70 ℃, surpasses the scald that this temperature will cause skin.So will be controlled at the limiting temperature of water about 70 ℃.High temperature in the definition thermoelastic martensitic transformation is austenite phase (A) mutually, and low temperature is martensitic phase (M) mutually.Phase transformation from austenite to martensitic phase is martensitic phase transformation; The reverse change of martensite, the initial temperature of the martensitic phase transformation of marmem and martensite reverse transformation and end temp are respectively Ms, Mf and As, Af from martensite to austenitic phase transformation.Wherein the martensite reverse transformation temperature As of the SMIAS16 type Ni-Ti two-way shape memory alloy that is provided by School of Mechanical Engineering of Singapore Nanyang University is 70 ℃, meet the requirement of material for temperature, relevant nature checking about SMIAS16: this sample length of side 1.6mm is the hexahedron sample; Mf is 38 ℃, Ms is 61 ℃, As is 70 ℃, Af is 96 ℃, meets the temperature variation interval, and in test it being carried out under the different temperatures dynamic stress performance measurement, to test its reacting space time be that 70～120 μ s (normal temperature) meet related request fully, and can find out intuitively that from experimental data figure his reaction velocity continues to improve when temperature raises, and the power that produces is also big more, and according to this laboratory data, the contractile force of SMIAS16 is very huge (about 40kN).Calculate according to related physical, the power that it can provide has been enough to tighten up daily employed shower nozzle.So meet the requirements fully with regard to its reaction velocity and stress aspect.Probing into of corrosion resistance: SMIAS16 has the ability of good anti-high humidity environment, and forms protective film on the surface, and protection inside is not corroded, so this sample also meets the requirements on corrosion resistance.
Find that through the retrieval to prior art it comprises cold water control valve and hot water control valve the anti-scald shower that Delaware, USA Emhart Inc developed in 1998, they communicate with each other by Cold water supply pipeline and mixing water supply pipeline respectively.The hot water control valve comprises needle-valve and valve seat.Needle-valve valve seat is relatively regulated, thereby regulates the highest water temperature of being supplied with the hot water of mixing water supply pipeline by the hot water control valve.In one embodiment, the hot water control valve of faucet device also comprises the pressurizer that is configured between hot water and Cold water supply parts and hot water and the cold water control valve.Thereby finally reach the purpose of anti-scald.
Further retrieval is found, Chinese patent application 00228023.X has put down in writing a kind of anti-scald faucet, comprise cock body, housing, sliding shaft core, sliding axle, spring, handle, lid, shelve sliding shaft core in the cock body, sliding shaft core overcoat upper spring, the horizontal sliding axle of sliding shaft core top circular hole, sliding axle is connected with the handle axis hole, and the axis hole of handle is designed to " n " font, the bottom rear side of handle, to step of lower convexity, form one from the locking angle.Child can not get a thorough understanding of skill wherein, does not also have strength to finish switch motion, so just plays the effect of anti-scald.
But the prior art is just carried out single mechanical improvement for the switching process of switch, and a root problem from control water temperature and improve completely, needs higher pressure balance facility, and required precision is higher.The simple improvement to mechanical switch can prevent that just child from owing to not bumping the scald that causes, not solving the scald problem that hot water temperature height brings.
The model utility content
The utility model provides a kind of anti-scald hot-water valve at the prior art above shortcomings, adopts whole mechanical structure, makes it independently to solve the problem that hot water is scalded.
The utility model is achieved through the following technical solutions, and the utility model comprises: the body of inverted T-shaped structure and piston, and wherein: an end of piston and body flexibly connects, and tap links to each other with the other end of body.
Described piston is formed by extending baffle plate and memory alloy spring axle core, and wherein: memory alloy spring axle core is positioned at body inside and two ends are connected with the extension baffle plate with the inwall of body respectively, extends baffle plate and is positioned at the body outside.
The bottom of described body is provided with through hole, and the corresponding position of described extension baffle plate is provided with the high-temperature water outlet hole of same inner diameter.
Described extension baffle plate is the semi-cylindrical shape.
In valve opening, spring-relaxation, the hole that lays respectively on water wall and the piston baffle becomes the dislocation relation, and promptly whole water pipe is a closed state; When valve closing, because spring shrinks, piston moves, and two holes are superimposed, and then draw hot water.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is a worm's eye view of the present utility model.
Embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: the body 1 of inverted T-shaped structure, piston 2 and tap 3, and wherein: piston 2 flexibly connects with an end of body 1, and tap 3 links to each other with the other end of body 1.
Described piston 2 is formed by extending baffle plate 4 and memory alloy spring axle core 5, and wherein: memory alloy spring axle core 5 is positioned at body 1 inside and two ends are connected with extension baffle plate 4 with the inwall of body 1 respectively, extends baffle plate 4 and is positioned at body 1 outside.
The bottom of described body 1 is provided with through hole 6, and the corresponding position of described extension baffle plate 4 is provided with the high-temperature water outlet hole 7 of same inner diameter.
As depicted in figs. 1 and 2, described extension baffle plate 4 is the semi-cylindrical shape.
This device carries out work in the following manner: when the operation of operator owing to mistake, cause the water that is higher than 70 ℃ to pass through total valve, entered the bathing pipeline, when flowing through regional A, because alloy spring contacts with hot water, the marmem generation deformation at A place, zone cause spring to shrink, and then baffle plate 4 is extended in pulling.The reaction time of this process is of short duration, and regional A still has long distance apart from shower nozzle, in this stage, does not have water and flows out from shower nozzle, that is to say that this process is safe.
Because the sealing of whole pipe type, hot water can not flow out yet, and has just finished this function of anti-scald yet.
Piston 2 is in the process of closing, drive and extend baffle plate 4, through hole 6 among the figure is alignd with high-temperature water outlet hole 7, liquid among the regional A is derived (not drawing among the delivery line figure), when bath person finds not have water to flow out from shower nozzle, will realize and oneself open wrong valve, also just can oneself close total valve, at this moment because through hole 6 still is in mated condition with high-temperature water outlet hole 7, so the water among the regional A can flow out gradually.Outflow along with hot water, the temperature of spring can reduce gradually, when its temperature is reduced to when being lower than 61 ℃, can cause selected alloy generation martensitic phase transformation process, promptly can promote piston 2 forward, and then open valve, the water that is suitable for the bathing temperature is flowed out from shower nozzle, do not hinder the outflow of the suitable water of temperature, thereby play self-regulating effect.
Claims (4)
1. an anti-scald hot-water valve is characterized in that, comprising: the body of inverted T-shaped structure and piston, and wherein: an end of piston and body flexibly connects, and tap links to each other with the other end of body.
2. anti-scald hot-water valve according to claim 1, it is characterized in that, described piston is formed by extending baffle plate and memory alloy spring axle core, wherein: memory alloy spring axle core is positioned at body inside and two ends are connected with the extension baffle plate with the inwall of body respectively, extends baffle plate and is positioned at the body outside.
3. anti-scald hot-water valve according to claim 2 is characterized in that the bottom of described body is provided with through hole, and the corresponding position of described extension baffle plate is provided with the high-temperature water outlet hole of same inner diameter.
4. according to claim 2 or 3 described anti-scald hot-water valves, it is characterized in that described extension baffle plate is the semi-cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201186118U CN202040373U (en) | 2011-04-20 | 2011-04-20 | Anti-scald hot water valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201186118U CN202040373U (en) | 2011-04-20 | 2011-04-20 | Anti-scald hot water valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040373U true CN202040373U (en) | 2011-11-16 |
Family
ID=44967816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201186118U Expired - Fee Related CN202040373U (en) | 2011-04-20 | 2011-04-20 | Anti-scald hot water valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672090A (en) * | 2012-09-07 | 2014-03-26 | 科勒公司 | Shape memory faucet |
-
2011
- 2011-04-20 CN CN2011201186118U patent/CN202040373U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672090A (en) * | 2012-09-07 | 2014-03-26 | 科勒公司 | Shape memory faucet |
| CN103672090B (en) * | 2012-09-07 | 2016-05-04 | 科勒公司 | Shape memory tap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20120420 |