WO2017012497A1 - 一种冷热水切换阀 - Google Patents

一种冷热水切换阀 Download PDF

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Publication number
WO2017012497A1
WO2017012497A1 PCT/CN2016/089991 CN2016089991W WO2017012497A1 WO 2017012497 A1 WO2017012497 A1 WO 2017012497A1 CN 2016089991 W CN2016089991 W CN 2016089991W WO 2017012497 A1 WO2017012497 A1 WO 2017012497A1
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WIPO (PCT)
Prior art keywords
valve
water
water outlet
valve body
passage
Prior art date
Application number
PCT/CN2016/089991
Other languages
English (en)
French (fr)
Inventor
卡特勒卡尔·威廉
李清双
黄辉
吴柏青
Original Assignee
恺霖卫浴科技（厦门）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 恺霖卫浴科技（厦门）有限公司 filed Critical 恺霖卫浴科技（厦门）有限公司
Priority to US15/536,608 priority Critical patent/US10012320B2/en
Publication of WO2017012497A1 publication Critical patent/WO2017012497A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
    • F16K11/163—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns
    • F16K11/165—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns with the rotating spindles parallel to the closure members
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/048—Systems for collecting not used fresh water
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/04—Domestic or like local pipe systems
    • E03B7/045—Domestic or like local pipe systems diverting initially cold water in warm water supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40—Protecting water resources
    • Y02A20/411—Water saving techniques at user level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7737—Thermal responsive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86509—Sequentially progressive opening or closing of plural ports

Definitions

  • the present invention relates to a valve, and more particularly to a hot and cold water switching valve for switching a water passage according to an inlet water temperature.
  • a cold water hot water automatic diverting valve which comprises a valve body having a valve chamber, the valve body is provided with a water inlet communicating with the valve chamber, and a cold water outlet. a nozzle and a hot water outlet, a valve body of a piston structure is arranged in the valve cavity, and a double-way shape memory alloy is further connected between the valve core and the valve body, and a phase transition temperature of the two-way shape memory alloy is provided.
  • the valve core when the temperature of the two-way shape memory alloy is lower than the phase transition temperature, the valve core can block the hot water outlet and make a conduction between the water inlet and the cold water outlet, the two-way shape memory Deformation when the alloy temperature is higher than the phase transition temperature can cause the spool to displace the cold water outlet and make conduction between the water inlet and the hot water outlet.
  • a hot and cold water switching valve includes a valve body, a switching valve core, a switching valve core and a heat-sensitive valve core, and the valve body is provided with water inlet a passage, a recovery passage and a water outlet passage, wherein one end of the water inlet passage, the recovery passage and the water outlet passage are communicated in the valve body, and the switching valve core is disposed in the valve body at a position where the three passages communicate with each other for recycling Switching out the water way between the channel and the water outlet channel, the switching valve core
  • the utility model is arranged in the water outlet channel for opening or shutting off the water outlet, and the heat sensing valve core is arranged in the recovery channel for shutting off the channel when the water temperature exceeds the set temperature.
  • the switching valve core includes a valve cymbal, a knob and two sealing rings, and the valve cymbal extends axially and one end of the axial direction penetrates the position where the three passages communicate with each other in the valve body
  • the valve block located in the valve body is provided with a flow guiding groove extending partially in the circumferential direction of the valve ring.
  • Two sealing rings are respectively disposed on two axial sides of the guiding groove, and the other end of the valve ring is located outside the valve body.
  • the knob is fixedly connected to the valve block, and a limiting device is arranged between the knob and the valve body for controlling the rotation angle of the valve.
  • the valve body is provided with a limiting slot with an opening angle of 90 degrees
  • the knob is provided with a bump
  • the protrusion is clamped in the limiting slot
  • the bump and the limiting groove constitute the limiting device.
  • the hot and cold water switching valve includes a spring, a heat-sensitive spring and a mandrel, wherein the mandrel is movably disposed in the recovery passage and has a shoulder therein, the thermal spring One end is disposed on the valve body near the water inlet of the recovery channel, and the other end of the thermal spring is abutted at one end of the mandrel, and one end of the spring is disposed on the valve body near the water outlet of the recovery channel, the spring The other end is disposed at the other end of the mandrel, and the recovery passage is provided with a step adapted to the shoulder, and a sealing device is disposed between the shoulder and the step.
  • the hot and cold water switching valve the switch valve core comprises a valve sleeve, a core shaft 2, a return spring and a button
  • the valve sleeve is fixed in the water outlet channel and is a hollow cylindrical structure
  • the middle portion of the valve sleeve is provided with a nozzle
  • the axial end of the valve sleeve is provided with a water outlet communicating with the water inlet
  • the core shaft 2 is axially movable and disposed in the valve sleeve
  • the axial end of the core shaft 2 is disposed corresponding to the valve sleeve outlet
  • the convex ring is provided with a sealing device between the convex ring and the water outlet
  • the button is rotatably disposed outside the valve body through a pivot
  • the other end of the core shaft 2 extends to the outside of the valve body and is movably connected with the button.
  • One end of the return spring abuts against the inner side wall near the water outlet of the valve sle
  • the hot and cold water switching valve the switch valve core comprises a valve sleeve, a core shaft 2, a return spring and a button
  • the valve sleeve is fixed in the water outlet channel and is a hollow cylindrical structure
  • the middle portion of the valve sleeve is provided with a nozzle
  • the axial end of the valve sleeve is provided with a water outlet communicating with the water inlet
  • the core shaft 2 is axially movable and disposed in the valve sleeve
  • the axial end of the core shaft 2 is provided with the valve sleeve water a mouth-fitted convex ring
  • a sealing device is arranged between the convex ring and the water outlet
  • the button is rotatably disposed outside the valve body through a pivot
  • the other end of the core shaft 2 extends to the outside of the valve body and is connected with the button
  • the movable connection setting one end of the return spring abuts against the inner side wall near the water outlet of the
  • the beneficial effects of the present invention are: in the summer or when hot water is not needed, the water can be directly flowed from the water inlet channel to the water outlet channel by switching the valve core, and the switch valve core can be like a daily switch.
  • the faucet opens or closes the water outlet channel.
  • the recovery channel is in a continuous closed state.
  • the switching valve core can be opened to allow the water to flow from the inlet channel to the recovery channel for recovery.
  • the heat-sensitive spring of the recovery channel is heated and stretched, and its elastic force is greater than the spring resilience of the spring.
  • the two displacements of the mandrel are pushed to close the shoulder and the step to close the recovery passage, so that the hot water will not be wasted, and the valve will be switched at this time.
  • the core is turned to a position where the water flows from the water inlet passage to the water outlet passage, at which time hot water can be used through the opening and closing valve spool, the technique of the present invention
  • the solution makes it easy to use in both the cold water and hot water modes.
  • Figure 1 is a perspective view of a first embodiment of the present invention
  • Figure 2 is a cross-sectional perspective view taken along line A-A of Figure 1;
  • Figure 3 is a cross-sectional perspective view taken along line B-B of Figure 1;
  • Figure 4 is a cross-sectional perspective view taken along line C-C of Figure 1;
  • Figure 5 is an exploded perspective view of a portion of the components of Figure 1;
  • Figure 6 is an exploded perspective view of another part of the view of Figure 1;
  • Figure 7 is a perspective view of a second embodiment of the present invention.
  • Figure 8 is a perspective, incomplete, exploded view of Figure 7.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the embodiment discloses a hot and cold water switching valve including a valve body 1, a switching valve core 2, a switching valve core 3, and a thermally sensitive valve body 4.
  • valve body 1 is provided with a water inlet passage 11, a recovery passage 12 and a water outlet passage 13, and one end of the water inlet passage 11, the recovery passage 12 and the water outlet passage 13 are connected in the valve body 1, and the entire valve
  • the body 1 has a substantially "T" shaped hollow structure.
  • the switching valve core 2 is disposed in the valve body 1 at a position where the three passages communicate with each other for switching the water discharge mode between the recovery passage 12 and the water outlet passage 13, and the switching valve core 2 includes a valve bore 21 and a knob 22
  • the valve block 21 in the body 1 is provided with a flow guiding groove 211 (in a chord-section structure) extending partially in the circumferential direction of the valve cymbal 21, and the sealing ring 23 and the sealing ring 24 are respectively disposed in the axial direction of the guiding groove 211
  • the other end of the valve cymbal 21 is located outside the valve body 1.
  • the knob 22 is fixedly connected to the valve cymbal 21, and a limiting device is arranged between the knob 22 and the valve body 1 for controlling the rotation angle of the valve cymbal 21, specifically
  • the outer side of the valve body 1 is provided with a limiting slot 14 having an opening angle of 90 degrees.
  • the knob 22 is provided with a bump (not shown), and the bump is clamped at the limit.
  • the valve bore 21 can only rotate within a range of 90 degrees, such that the water inlet passage 11 and the water outlet passage 13 or the recovery passage 12 Through the switching knob 22, the projection 14 and the stopper grooves constituting said stopper means.
  • the heat-sensitive valve core 4 is disposed in the recovery passage 12 for shutting off the passage when the water temperature exceeds a set temperature, and the heat-sensitive valve core 4 includes a spring 41, a heat-sensitive spring 42, a mandrel 43, and an "O" a sealing ring 44 and a limiting plate 45.
  • the mandrel 43 has a cylindrical structure and is movably disposed on the recovery passage 12.
  • the axial middle portion of the mandrel 43 is provided with a shoulder 431, and the recovery passage 12 is A step 121 is formed on the shoulder 431.
  • One end of the heat-sensitive spring 42 is disposed on the inner side of the valve body 1 near the water inlet of the recovery passage 12, and the other end of the heat-sensitive spring 42 is opposite.
  • the limiting plate 45 is disposed near the water outlet of the water outlet channel 12 on the inner side of the valve body 1, and is provided with a water outlet hole, one end of the spring 41 The other end of the spring 41 is disposed on the inner side of the limiting plate 45, and the other end of the spring 41 is abutted on the other end of the mandrel 43.
  • the sealing ring 44 is disposed on the shoulder 431.
  • the switch valve core 3 is disposed in the water outlet passage 13 for opening or closing the water.
  • the switch valve core 3 includes a valve sleeve 31, a core shaft 32, a return spring 33, a button 34, and a pivot shaft 35.
  • 31 is fixed in the water outlet passage 13 and is a hollow cylindrical structure.
  • the middle portion of the valve sleeve 31 is provided with a water inlet for communicating with the water inlet of the water outlet passage, and one end of the axial direction of the valve sleeve 31 is connected with the water inlet.
  • the water outlet 311, the mandrel 32 is axially displaceable in the valve sleeve 31, and one end of the mandrel 32 is provided with a convex ring 321 adapted to the water outlet 311 of the valve sleeve 31, and the convex ring 321 is A sealing ring 36 is disposed between the water outlets 311.
  • the button 34 is rotatably disposed outside the valve body 1 through a pivot 35.
  • the other end of the mandrel 32 extends to the outside of the valve body 1 and is movably connected to the non-pivoting portion of the button 34.
  • the movable connection here is that when the button 34 is rotated at a small angle with respect to the pivot, the mandrel 32 is axially displaced accordingly, and one end of the return spring 33 abuts against the inner side wall of the valve sleeve 31 near the water outlet 311. The other end of the return spring 33 abuts on the side of the mandrel 32 that is adjacent to the button 34.
  • the above-mentioned hot and cold water switching valve has two working modes, one mode is that in the summer or when hot water is not needed, the water can be directly flowed from the water inlet passage 11 to the water outlet passage 13 by switching the spool 2, that is, by turning the knob 22
  • the valve port 21 is rotated by 90 degrees, at which time the opening of the guide groove 211 is downward, the water inlet channel 11 and the water outlet channel 13 are turned on, and the recovery channel 12 is closed, and the water flow reaches the switch valve core 3, at which time the water outlet channel 12 is discharged.
  • No control can be performed by switching the spool 3, which is the same as the known faucet switch.
  • the other mode is the water-saving mode.
  • the switching valve core 2 can be opened at this time, and the water flow can be flowed from the water inlet passage 11 to the recovery passage 12 for recycling.
  • the specific operation is to rotate the knob 22 counterclockwise by 90 degrees, and the opening of the guide groove 211 is oriented toward the opening.
  • the water passage 11 flows from the water inlet passage 11 to the recovery passage 12, and when the temperature of the water flow reaches a set temperature such as 45 degrees, the heat-sensitive spring 42 in the recovery passage 12 is thermally elongated, and its elastic force is greater than that of the spring 41. Resilience, pushing the mandrel 43 displacement to achieve the closing of the shoulder 431 and the step 121 to shut off the recovery passage 12, so that hot water will not be wasted, when the water is needed, the switching spool 2 is rotated 90 degrees clockwise, The water flow is directly flowed from the water inlet passage 11 to the water outlet passage 13, at which time the energy recovery passage 12 is recovered. When the switching valve core 2 is closed, the water outlet passage 13 can open or close the hot water outlet by switching the valve core 3.
  • the mandrel 32 is displaced against the resilience of the return spring 33, at this time on the convex ring 321
  • the sealing ring 36 leaves the water outlet 311 of the valve sleeve 31, and at this time, the water outlet passage 13 is opened, and since the force exerted on the mandrel 32 by the water flow is greater than the resilience of the return spring 33, the mandrel 32 is maintained in an open state, which is continuous heat.
  • the embodiment discloses a shower for automatically discharging cold water, comprising a shower body 5 and a hot and cold water switching valve according to the first embodiment;
  • the shower body 5 includes a shower housing 51, and the shower housing 51 is provided with a shower waterway assembly 52.
  • the shower waterway assembly includes a shower water inlet 521 and a shower water outlet (in the figure) Not shown); the water body flows into the shower water channel assembly 52 via the shower water inlet 521, and the water body is decompressed and shunted, water and gas mixed, and the like, and then flows out from the shower water outlet by means of a water flow or a water mist.
  • the hot and cold water switching valve is also installed in the shower housing 51, and the water inlet passage 11 of the hot and cold water switching valve is connected with the universal joint head 6, and is connected to the universal joint head 6 through the universal joint head 6 At the same time, the water outlet passage 13 of the hot and cold water switching valve is connected to the shower water inlet 521 and is connected to supply water to the shower water channel assembly 52; the recovery passage 12 protrudes from the shower housing 51 For connecting cold water recovery pipes.
  • the advantages of the invention are two. One is that the cold water is fully recovered, and the hot water can avoid waste; the second is that when the water is used in the hot water mode, when the temperature reaches the hot water temperature, the water can be automatically stopped, and the person can completely go to other things. No need to wait, but also avoid hot water waste, to achieve full water saving function.

Abstract

一种冷热水切换阀，包括阀体（1）、切换阀芯（2）、开关阀芯（3）和热感应阀芯（4）。阀体（1）内设有进水通道（11）、回收通道（12）和出水通道（13），该进水通道（11）、回收通道（12）和出水通道（13）三者的一端在阀体（1）内连通设置。切换阀芯（2）设于阀体（1）内三个通道相互连通的位置，用于在回收通道（12）和出水通道（13）之间切换出水方式；开关阀芯（3）设于出水通道（13）内，用于开启或者关断出水；热感应阀芯（4）设于回收通道（12）内，用于在水温超过设定温度时关断该通道。该冷热水切换阀具有节水、控制灵活的优点。

Description

一种冷热水切换阀 技术领域
本发明涉及一种阀门，特别涉及一种用于根据进水温度切换出水通道的冷热水切换阀。
背景技术
日常生活中比如淋浴、洗碗、洗衣服等需要用到热水，特别是采用远程供应热水的场合，阀门打开的时候，管道中留存的那部分水是冷的，需要放掉后出水的温度才会慢慢上来，由于管道也是冷的，因此要使出水的温度达到合适的温度，水对冷的管道还有个加热的过程，这会使得水温上升更慢，放掉的水更多，冷水被浪费掉。基于这样的情况，人们开发出一些可以自动切换冷水或者热水出水通道以节约水资源的一些阀门。
如2014年6月4日公告的中国专利ZL201210582047.4公开了一种冷水热水自动分流阀，包括具有阀腔的阀体，阀体上设置有和阀腔连通的一个进水口、一个冷水出水口和一个热水出水口，阀腔内还设置有一个活塞式结构的阀芯，阀芯与阀体之间还连接设置有双程形状记忆合金，所述双程形状记忆合金的相变温度为40-55℃，所述双程形状记忆合金温度低于相变温度时阀芯能够将热水出水口堵住并使得进水口和冷水出水口之间形成导通，所述双程形状记忆合金温度高于相变温度时发生形变能够使阀芯位移将冷水出水口堵住并使得进水口和热水出水口之间形成导通。
发明内容
本发明的目的是提供一种在避免冷水浪费的同时又可以灵活控制热水出水的冷热水切换阀。
为解决前述技术问题，本发明所采用的技术方案是这样的：一种冷热水切换阀，包括阀体、切换阀芯、开关阀芯和热感应阀芯，所述阀体内设有进水通道、回收通道和出水通道，该进水通道、回收通道和出水通道三者的一端在阀体内连通设置，所述切换阀芯设于阀体内所述三个通道相互连通的位置用于在回收通道和出水通道之间切换出水方式，所述开关阀芯 设于出水通道内用于开启或者关断出水，所述热感应阀芯设于回收通道内用于在水温超过设定温度时关断该通道。
上述冷热水切换阀，所述切换阀芯包括阀竿、旋钮和两个密封圈，所述阀竿呈轴向延伸且其轴向一端穿设于阀体内所述三个通道相互连通的位置，位于阀体内的所述阀竿上设有沿阀竿圆周方向部分延伸的导流槽，两个密封圈分别设于所述导流槽轴向两侧，阀竿的另一端位于阀体外侧，所述旋钮与阀竿固定连接，所述旋钮与阀体之间设有限位装置用于控制阀竿旋转角度。
上述冷热水切换阀，所述阀体上设有开口夹角为90度的限位槽，所述旋钮上设有凸块，所述凸块卡设于所述限位槽中，所述凸块和限位槽构成所述的限位装置。
上述冷热水切换阀，所述热感应阀芯包括弹簧、热敏弹簧和芯轴，所述芯轴可移动设于所述回收通道内且其中部设有凸肩，所述热敏弹簧的一端设于所述回收通道进水口附近的阀体上，所述热敏弹簧的另一端抵设于芯轴的一端，弹簧的一端设于所述回收通道出水口附近的阀体上，弹簧的另一端抵设于所述芯轴的另一端，所述回收通道内设有与所述凸肩相适配的台阶，所述凸肩与台阶之间设有密封装置。
上述冷热水切换阀，所述开关阀芯包括阀套、芯轴二、复位弹簧和按钮，所述阀套固设于出水通道内且其为中空柱形结构，阀套的中部设有进水口，阀套的轴向一端设有与该进水口连通的出水口，芯轴二可轴向移动设于所述阀套内，芯轴二的轴向一端设有与阀套出水口相适配的凸环，所述凸环与出水口之间设有密封装置，按钮通过一枢轴可转动设于阀体外侧，芯轴二的另一端延伸至阀体外侧并与该按钮活动连接设置，复位弹簧一端抵设于阀套出水口附近的内侧壁上，复位弹簧的另一端抵设于芯轴二上靠近按钮的那一侧。
上述冷热水切换阀，所述开关阀芯包括阀套、芯轴二、复位弹簧和按钮，所述阀套固设于出水通道内且其为中空柱形结构，阀套的中部设有进水口，阀套的轴向一端设有与该进水口连通的出水口，芯轴二可轴向移动设于所述阀套内，芯轴二的轴向一端设有与阀套出水 口相适配的凸环，所述凸环与出水口之间设有密封装置，按钮通过一枢轴可转动设于阀体外侧，芯轴二的另一端延伸至阀体外侧并与该按钮活动连接设置，复位弹簧一端抵设于阀套出水口附近的内侧壁上，复位弹簧的另一端抵设于芯轴二上靠近按钮的那一侧。
通过采用前述技术方案，本发明的有益效果是：在夏天或者不需要热水的时候，可以通过切换阀芯让水直接由进水通道流向出水通道，这时通过开关阀芯就可以象日常开关水龙头一样开启或者关闭出水通道，此时回收通道处于持续的关闭状态；当到了冬天或者需要热水的时候，由于水加热器离切换阀还有一段矩离，同时流经的管道也需要水流预热，因此前面一段时间的出水需要进行回收，此时可以打开切换阀芯，让水流从进水通道流至回收通道进行回收处理，当水流的温度达到设定的温度如40至50度时，回收通道的热敏弹簧受热伸长，其弹力大于弹簧的回弹力，推动芯轴二位移实现凸肩与台阶的闭合从而关断回收通道，这样热水就不会被浪费，此时将切换阀芯转到使水流从进水通道到出水通道的位置，这时就可以通过开关阀芯使用热水，本发明的技术方案使得不管在冷水还是热水的出水模式下，使用都十分方便。
附图说明
图1是本发明实施例一的立体图；
图2是图1中A-A剖视立体图；
图3是图1中B-B剖视立体图；
图4是图1中C-C剖视立体图；
图5是图1中部分零部件的立体分解图；
图6是图1中部分零部件另一视角的立体分解图；
图7是本发明实施例二的立体图；
图8是图7的立体不完全分解图。
具体实施方式
为更清楚理解本发明所述技术方案，现结合附图列举一实施例对本发明的结构进行详 细说明：
实施例一：
参考图1至图6，实施例公开一种冷热水切换阀，包括阀体1、切换阀芯2、开关阀芯3和热感应阀芯4。
其中：所述阀体1内设有进水通道11、回收通道12和出水通道13，该进水通道11、回收通道12和出水通道13三者的一端在阀体1内连通设置，整个阀体1大致呈“T”字型中空结构。
所述切换阀芯2设于阀体1内所述三个通道相互连通的位置用于在回收通道12和出水通道13之间切换出水方式，所述切换阀芯2包括阀竿21、旋钮22、“O”型密封圈23和“O”型密封圈24，所述阀竿21呈轴向延伸且其轴向一端穿设于阀体1内所述三个通道相互连通的位置，位于阀体1内的所述阀竿21上设有沿阀竿21圆周方向部分延伸的导流槽211(呈弦断面结构)，密封圈23和密封圈24分别设于所述导流槽211轴向两侧，阀竿21的另一端位于阀体1外侧，所述旋钮22与阀竿21固定连接，所述旋钮22与阀体1之间设有限位装置用于控制阀竿21旋转角度，具体地说，所述阀体1外侧设有开口夹角为90度的限位槽14，所述旋钮22上设有凸块(图中未示出)，所述凸块卡设于所述限位槽14中，这样当旋钮22旋转时，阀竿21只能在90度的范围内转动，这样，进水通道11与出水通道13或者回收通道12的连通通过旋钮22进行切换，所述凸块和限位槽14构成所述的限位装置。
所述热感应阀芯4设于回收通道12内用于在水温超过设定温度时关断该通道，所述热感应阀芯4包括弹簧41、热敏弹簧42、芯轴43、“O”形密封圈44和限位板45，所述芯轴43为柱形结构且其可移动设于所述回收通道12，芯轴43的轴向中部设有凸肩431，所述回收通道12内设有与所述凸肩431相适配的台阶121，所述热敏弹簧42的一端设于所述阀体1内侧位于回收通道12进水口附近，所述热敏弹簧42的另一端抵设于芯轴43的的一端，限位板45设于阀体1内侧所述出水通道12出水口附近，且其上设有出水孔，弹簧41的一端 设于所述限位板45内侧面，弹簧41的另一端抵设于所述芯轴43的另一端，密封圈44设于所述凸肩431上。
所述开关阀芯3设于出水通道13内用于开启或者关断出水，所述开关阀芯3包括阀套31、芯轴32、复位弹簧33、按钮34、枢轴35，所述阀套31固设于出水通道13内且其为中空柱形结构，阀套31的中部设有进水口用于与出水通道的进水口连通，阀套31的轴向一端设有与该进水口连通的出水口311，芯轴32可轴向移动设于所述阀套31内，芯轴32的轴向一端设有与阀套31出水口311相适配的凸环321，所述凸环321与出水口311之间设有密封圈36，按钮34通过枢轴35可转动设于阀体1外侧，芯轴32的另一端延伸至阀体1外侧并与按钮34非枢接部分活动连接设置，这里的活动连接设置是当按钮34相对于枢轴做小角度转动时，芯轴32会相应地做轴向位移，复位弹簧33的一端抵设于阀套31出水口311附近的内侧壁上，复位弹簧33的另一端抵设于芯轴32上靠近按钮34的那一侧。
上述冷热水切换阀有两种工作模式，一种模式是在夏天或者不需要热水的时候，可以通过切换阀芯2让水直接由进水通道11流向出水通道13，即通过转动旋钮22使阀竿21转动90度，此时导流槽211的开口向下，进水通道11与出水通道13导通而回收通道12被截止，水流到达开关阀芯3，这时出水通道12出水与否可以通过开关阀芯3进行控制，这跟公知的水龙头开关一样。另外一种模式是节水模式，当到了冬天或者需要热水的时候，由于水加热器离切换阀还有一段矩离，同时流经的管道也需要水流预热，因此前面一段时间的出水需要进行回收，此时可以打开切换阀芯2，让水流从进水通道11流至回收通道12进行回收处理，具体的操作是使旋钮22逆时针转动90度，此时导流槽211开口朝向进水通道11，此时水流从进水通道11流向回收通道12，当水流的温度达到设定的温度如45度时，回收通道12内的热敏弹簧42受热伸长，其弹力大于弹簧41的回弹力，推动芯轴43位移实现凸肩431与台阶121的闭合从而关断回收通道12，这样热水就不会被浪费，当需要用水的时候，将切换阀芯2顺时针转动90度，使水流从进水通道11直接流向出水通道13，这时回收能道12 被切换阀芯2关闭，出水通道13通过开关阀芯3就可以开启或者关闭热水出水。具体地说，当按下开关阀芯3的按钮34(靠近与芯轴32连接的那一侧)时，芯轴32克服复位弹簧33的回弹力做一定的位移，此时凸环321上的密封圈36离开阀套31的出水口311，此时出水通道13开启，由于水流施加在芯轴32上的力大于复位弹簧33的回弹力，芯轴32被保持在开启状态，此为持续热水出水的状态，当不需要用水的时候，按压按钮34的另一端，此时芯轴32受到复位弹簧33的回弹力，与回弹力同一个方向的按钮34施加在芯轴32上的关断的力，这两个外力大于流体施加在芯轴32上的反向力，凸环321上的密封圈36重新与出水口311接合关断出水通道13，此时由于芯轴32受到水流压力的面积相对于开启状态时其面积较小，不足力克服复位弹簧33的回弹力打开出水通道13，因此出水通道13被保持在关闭状态。实施例二：
参考图7、图8，该实施例公布了一种自动排冷水的花洒，包括有花洒本体5以及实施例一所述的冷热水切换阀；
其中：花洒本体5包括有花洒壳体51，该花洒壳体51内设有花洒水路组件52，该花洒水路组件上包括有花洒入水口521以及花洒出水口(图中未示出)；水体经由花洒入水口521流入花洒水路组件52，完成水体减压分流、水气混合等操作，而后以水流束或水雾等方式由花洒出水口流出。
所述的冷热水切换阀也是安装于该花洒壳体51内的，且该冷热水切换阀的进水通道11连接有万向连接头6，且通过该万向连接头6连接至进水管道；同时，该冷热水切换阀的出水通道13与花洒入水口521相连接并导通以对该花洒水路组件52供水；回收通道12凸伸出于花洒壳体51外，以用于连接冷水回收管道。
本发明的好处有二，一是冷水充分回收，同时热水可以避免浪费；二是使用时只要调到热水模式，当温度达到热水温度自动止水，人完全可以去忙其他事情，而无需等待，同时也避免热水浪费，达到充分节水功能。

Claims (6)

  1. 一种冷热水切换阀，其特征在于：包括阀体、切换阀芯、开关阀芯和热感应阀芯，所述阀体内设有进水通道、回收通道和出水通道，该进水通道、回收通道和出水通道三者的一端在阀体内连通设置，所述切换阀芯设于阀体内所述三个通道相互连通的位置用于在回收通道和出水通道之间切换出水方式，所述开关阀芯设于出水通道内用于开启或者关断出水，所述热感应阀芯设于回收通道内用于在水温超过设定温度时关断该通道。
  2. 根据权利要求1所述的冷热水切换阀，其特征在于：所述切换阀芯包括阀竿、旋钮和两个密封圈，所述阀竿呈轴向延伸且其轴向一端穿设于阀体内所述三个通道相互连通的位置，位于阀体内的所述阀竿上设有沿阀竿圆周方向部分延伸的导流槽，两个密封圈分别设于所述导流槽轴向两侧，阀竿的另一端位于阀体外侧，所述旋钮与阀竿固定连接，所述旋钮与阀体之间设有限位装置用于控制阀竿旋转角度。
  3. 根据权利要求2所述的冷热水切换阀，其特征在于：所述阀体上设有开口夹角为90度的限位槽，所述旋钮上设有凸块，所述凸块卡设于所述限位槽中，所述凸块和限位槽构成所述的限位装置。
  4. 根据权利要求1或2或3所述的冷热水切换阀，其特征在于：所述热感应阀芯包括弹簧、热敏弹簧和芯轴，所述芯轴可移动设于所述回收通道内且其中部设有凸肩，所述热敏弹簧的一端设于所述回收通道进水口附近的阀体上，所述热敏弹簧的另一端抵设于芯轴的一端，弹簧的一端设于所述回收通道出水口附近的阀体上，弹簧的另一端抵设于所述芯轴的另一端，所述回收通道内设有与所述凸肩相适配的台阶，所述凸肩与台阶之间设有密封装置。
  5. 根据权利要求1或2或3所述的冷热水切换阀，其特征在于：所述开关阀芯包括阀套、芯轴二、复位弹簧和按钮，所述阀套固设于出水通道内且其为中空 柱形结构，阀套的中部设有进水口，阀套的轴向一端设有与该进水口连通的出水口，芯轴二可轴向移动设于所述阀套内，芯轴二的轴向一端设有与阀套出水口相适配的凸环，所述凸环与出水口之间设有密封装置，按钮通过一枢轴可转动设于阀体外侧，芯轴二的另一端延伸至阀体外侧并与该按钮活动连接设置，复位弹簧一端抵设于阀套出水口附近的内侧壁上，复位弹簧的另一端抵设于芯轴二上靠近按钮的那一侧。
  6. 根据权利要求4所述的冷热水切换阀，其特征在于：所述开关阀芯包括阀套、芯轴二、复位弹簧和按钮，所述阀套固设于出水通道内且其为中空柱形结构，阀套的中部设有进水口，阀套的轴向一端设有与该进水口连通的出水口，芯轴二可轴向移动设于所述阀套内，芯轴二的轴向一端设有与阀套出水口相适配的凸环，所述凸环与出水口之间设有密封装置，按钮通过一枢轴可转动设于阀体外侧，芯轴二的另一端延伸至阀体外侧并与该按钮活动连接设置，复位弹簧一端抵设于阀套出水口附近的内侧壁上，复位弹簧的另一端抵设于芯轴二上靠近按钮的那一侧。
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