CN101251201A - 调温混水阀 - Google Patents

调温混水阀 Download PDF

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CN101251201A
CN101251201A CNA2008100246468A CN200810024646A CN101251201A CN 101251201 A CN101251201 A CN 101251201A CN A2008100246468 A CNA2008100246468 A CN A2008100246468A CN 200810024646 A CN200810024646 A CN 200810024646A CN 101251201 A CN101251201 A CN 101251201A
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water
water port
port
cold water
advance
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CN100545493C (zh
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张丽萍
万华新
邱步
张岚
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AO Smith China Water Heater Co Ltd
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AO Smith China Water Heater Co Ltd
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Priority to CA2661355A priority patent/CA2661355C/en
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    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/028—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
    • 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
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • 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
    • Y10T137/6416—With heating or cooling of the system
    • Y10T137/6497—Hot and cold water system having a connection from the hot to the cold channel
    • 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
    • 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
    • Y10T137/86815—Multiple inlet with single outlet
    • Y10T137/86823—Rotary valve
    • 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
    • Y10T137/86863—Rotary valve unit
    • 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
    • Y10T137/87249—Multiple inlet with multiple outlet
    • 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
    • Y10T137/87265—Dividing into parallel flow paths with recombining
    • Y10T137/87555—Having direct response valve [e.g., check valve, etc.]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Abstract

本发明涉及一种调温混水阀，属于流体控制设施技术领域。该阀的壳体具有进冷水端口、出冷水端口、进热水端口、出混合水端口，壳体内装有用于启闭和切换水流通道的阀芯；壳体进冷水端口至少与连接储水装置的端口之一之间设有泄压流道，泄压流道中装有允许水流由储水装置流向进冷水端的单向阀。这样，既保持了调温混水阀原有功能，而且一旦储水装置内压过大，即可打开单向阀，通过泄压流道向前端水源泄压，从而确保储水装置的使用安全，避免超压泄漏，有利于延长其使用寿命。

Description

调温混水阀
技术领域
本发明涉及一种调温混水阀，尤其是一种调温混水阀的结构改进，属于流体控制设施技术领域。
背景技术
混水阀是目前广泛用于调节水流和水温的流体控制设施。现有单柄混水阀通常设有热水、冷水和混水三个接口，通过内部阀芯更改水流通道，实现混水开关和水温调节的功能。检索发现，申请号为97224630.4的中国实用新型专利公开了一种电热水器的水温调节混水阀，它在壳体的两侧上分别设有单接口和复合接口，并彼此呈上、下交叉状设置；在阀芯的表面设有与阀芯转向相平行，且槽的横截面逐变的水温调节槽，该槽由设于其内侧的通孔，开口在阀芯上。因此，将冷水、热水以及冷、热水混合开关集于同一阀芯，可方便地适用于水箱式、出口敞开式、开口式、封闭式等各种不同种类电热水器。
据申请人了解，现有混水阀均作为终端阀，只能控制出水，不具有控制前端水源与储水装置之间流道的功能。申请号为97224630.4中国实用新型专利的混水阀虽然能够实现切断前端水源与储水装置之间流道的功能，但这种完全切断前端水源与储水装置之间流道的方式使储水装置内压过高时无法泄压，从而存在安全隐患，对其使用寿命也产生了不利影响。
发明内容
本发明要解决技术问题是：针对以上现有技术存在的缺点，提出一种不仅可以实现前端水流控制，而且能够保持对储水装置内压控制的调温混水阀，从而保证储水装置的使用安全，避免超压泄漏。
为了解决以上技术问题，本发明的调温混水阀基本技术方案是：壳体具有用于连接水源的进冷水端口，用于连接储水装置进水口的出冷水端口，用于连接储水装置出水口的进热水端口，以及用于连接用水装置的出混合水端口，所述壳体内装有用于启闭和切换水流通道的阀芯；其中所述阀芯具有分别连接进冷水端口和出冷水端口之间、进冷水端口和出混合水端口之间、进热水端口和出混合水端口之间的水流通道；所述壳体进冷水端口至少与连接储水装置的端口之一之间另设有泄压流道，所述泄压流道中装有允许水流由储水装置流向进冷水端的单向阀。
这样，既保持了调温混水阀原有开关和水温的调节功能，而且当混水阀处在关闭状态时，一旦储水装置内压过大，即可打开单向阀，通过泄压流道向前端水源泄压，从而确保储水装置的使用安全，避免超压泄漏，有利于延长其使用寿命。同时，由于单向阀不允许水流由进冷水端通过泄压流道流向储水装置，即使万一储水装置发生渗漏，也不至于出现大量的漏水导致用户财产受损的事件。
在上述基本技术方案的基础上，本发明进一步的描述是：当处于关闭状态时，所述出混合水端口端无出水，所述阀芯关断进冷水端口和出冷水端口之间、进冷水端口和出混合水端口之间、进热水端口和出混合水端口之间的连通，水流只能通过所述单向阀由储水装置流向水源；当处于打开状态时，出混合水端口端有出水，所述进冷水端口和出冷水端口之间保持连通，通过调节所述进冷水端口和出混合水端口之间以及所述进热水端口和出混合水端口之间水流通道的出水比例来调节水温。
更具体的说，本发明中的所述阀芯具有四种切换水流通道的位置状态；当所述阀芯处于第一状态时，关断所有端口相互之间的连通；当所述阀芯由第一状态逐渐转至第二状态时，所述进冷水端口和出冷水端口保持与出混合水端口连通，而所述进热水端口逐渐与出混合水端口连通；当所述阀芯由第二状态逐渐转至第三状态时，所述进冷水端口和出冷水端口保持连通，且逐渐与出混合水端口关断，而进热水端口与出混合水端口连通；当所述阀芯由第三状态逐渐转移至第四状态时，所述进冷水端口和出冷水逐渐与出混合水端口连通，而进热水端口关断。
这样，以合理巧妙的结构使得调温混水阀的控制更为完善和科学。当调温混水阀处于关闭状态时，所有端口相互之间的连通均关断，出混合水端口无出水。当储水装置内水压大于水源压力时，储水装置通过单向阀向水源泄压；而当储水装置内水压小于水源压力时，水源不能向储水装置供水。
当调温混水阀处于打开状态时，出混合水端口可以出水，出水水温从进冷水水温到进热水水温可调。当出混合水端仅出冷水，只要进冷水端口与出混合水端口连通，进热水端口与其它端口均不连通即可。当出混合水端口出温度介于冷水和热水之间的混合水时，进冷水端口和出冷水端口与出混合水端口连通，且进热水端口与出混合水端口连通。当出混合水端仅出热水时，进冷水端口和出冷水端口保持连通，进冷水端口与出混合水端口不连通，而进热水端口与出混合水端口连通。
附图说明
下面结合附图对本发明作进一步的说明。
图1是本发明实施例一的结构示意图。
图2是图1的局部放大图。
图3是图5壳体的A-A剖视图。
图4是图5壳体的B-B剖视图。
图5是图1中壳体的俯视图。
图6是图1中阀芯下瓷片的结构式示意图。
图7是图6的俯视图。
图8是图1中阀芯上瓷片的结构式示意图。
图9是图8的俯视图。
图10至图13是图1实施例一中上下瓷片的四个位置状态示意图。
图14是本发明实施例二的上瓷片的结构式示意图。
图15是图14的俯视图。
图16是本发明实施例二的下瓷片的结构式示意图。
图17是图16的俯视图。
图18至图21是本发明实施例二中上下瓷片的四个位置状态示意图。
图22是图24壳体的A-A剖视图。
图23是图24壳体的B-B剖视图。
图24是本发明实施例二的壳体俯视图。
具体实施方式
实施例一
本实施例的调温混水阀如图1所示，结合图3-5可以看出，壳体1具有用于连接水源的进冷水端口1-1，用于连接储水装置进水口的出冷水端口1-2，用于连接储水装置出水口的进热水端口1-3，以及用于连接用水装置的出混合水端口1-4，此四个端口分别与壳体1内的四个邻近孔连通。壳体内装有用于启闭和切换水流通道的阀芯3，该阀芯主要由固定在壳体1内的下瓷片4、与上瓷片固定件6相对固定且可以相对下磁片作平面运动(旋转与平移)的上瓷片5、以及安置在上瓷片固定件6上端的调节杆8构成。图中7是阀芯定位件。壳体1的进冷水端口1-1与连接储水装置的进热水端口1-3之间设有泄压流道，如图2所示，该泄压流道由邻近进热水端口1-3的小孔和邻近进冷水端口1-1大孔构成，大孔由内向外分别装有密封垫12、密封垫支撑11、弹簧10和固定件9，构成只允许水流由储水装置流向进冷水端的单向阀。
阀芯3中的上下瓷片分别如图6-图9所示，下瓷片呈椭圆形，制有与壳体1内四个孔对应的四个通孔。上瓷片呈圆形，相对下瓷片的下表面制有左右两条异形流道槽。左侧的流道槽由向二三象限延伸的短圆弧槽以及与之连通的沿X轴延伸再沿正Y轴方向延伸的直角槽构成，右侧的流道槽由向一象限延伸的短圆弧槽并穿过四象限后象三象限延伸的长圆弧槽以及与之连通的沿X轴延伸再沿正Y轴方向延伸的直角槽构成。两瓷片通过调节杆8的旋转和拨动调节，相对位移后可以使阀芯3具有四种切换水流通道的状态。当阀芯内的处于第一状态时，如图10所示，关断所有端口相互之间的连通。当阀芯由第一状态逐渐转至第二状态时，如图11所示，进冷水端口和出冷水端口保持与出混合水端口连通，而进热水端口逐渐与出混合水端口连通。当阀芯由第二状态逐渐转至第三状态时，如图12所示，进冷水端口和出冷水端口保持连通，且逐渐与出混合水端口关断，而进热水端口与出混合水端口连通。当阀芯由第三状态逐渐转移至第四状态时，如图13所示，进冷水端口和出冷水逐渐与出混合水端口连通，而进热水端口关断。
采用本实施例后，在单向阀的作用下，可以保持储水装置与水源压力基本相等，从而既保持了调温混水阀原有开关和水温的调节功能，又可以在储水装置内压过大时通过泄压流道向前端水源泄压，确保了储水装置的使用安全，避免了超压泄漏，有利于延长其使用寿命。
实施例二
本实施例的调温混水阀基本结构与实施例一类似。不同之处在于，由图22-图24的壳体结构可以看出，出冷水端口1-2对应的壳体内邻近孔向中部延伸有尾槽，从而在进冷水端口1-1与连接储水装置的出冷水端口1-2之间设有泄压流道。
为了实现与实施例一相同的调节控制功能，上、下瓷片以及调控操作也有所变化。上、下瓷片的具体变化如图14-图17所示，两瓷片均为圆形，下瓷片上依然制有与壳体1内四个孔对应的四个通孔。上瓷片呈圆形，相对下瓷片的下表面制有上下两条异形流道槽。上部的流道槽由中心圆孔分别向一二象限中部延伸的扇形和向三象限中部延伸的直槽构成，下部流道槽由分别向三四象限延伸的圆弧槽构成。其使用时对应的四种切换水流通道的状态分别如图10-图21所示，工作原理不难从实施例一中类推，不另赘述。
除上述实施例外，本发明还可以有其他实施方式。例如，壳体内以及阀芯的流道可以有各种变化设计。凡采用等同替换或等效变换形成的技术方案，均落在本发明要求的保护范围。

Claims (6)

1. 一种调温混水阀，壳体具有用于连接水源的进冷水端口，用于连接储水装置进水口的出冷水端口，用于连接储水装置出水口的进热水端口，以及用于连接用水装置的出混合水端口，所述壳体内装有用于启闭和切换水流通道的阀芯；其特征在于：所述阀芯具有分别连接进冷水端口和出冷水端口之间、进冷水端口和出混合水端口之间、进热水端口和出混合水端口之间的水流通道；所述壳体进冷水端口至少与连接储水装置的端口之一之间另设有泄压流道，所述泄压流道中装有允许水流由储水装置流向进冷水端的单向阀。
2. 根据权利要求1所述调温混水阀，其特征在于：当处于关闭状态时，所述出混合水端口端无出水，所述阀芯关断进冷水端口和出冷水端口之间、进冷水端口和出混合水端口之间、进热水端口和出混合水端口之间的连通，水流只能通过所述单向阀由储水装置流向水源；当处于打开状态时，出混合水端口端有出水，所述进冷水端口和出冷水端口之间保持连通，通过调节所述进冷水端口和出混合水端口之间以及所述进热水端口和出混合水端口之间水流通道的出水比例来调节水温。
3. 根据权利要求1或2所述调温混水阀，其特征在于：所述阀芯主要由固定在壳体内的下瓷片、与上瓷片固定件相对固定且可以相对下磁片作平面运动的上瓷片、以及安置在上瓷片固定件上端的调节杆构成。
4. 根据权利要求3所述调温混水阀，其特征在于：所述四个端口分别与壳体内的四个邻近孔连通。
5. 根据权利要求4所述调温混水阀，其特征在于：所述下瓷片呈椭圆形，制有与壳体内四个孔对应的四个通孔；所述上瓷片呈圆形，相对下瓷片的下表面制有左右两条异形流道槽，左侧的流道槽由向二三象限延伸的短圆弧槽以及与之连通的沿X轴延伸再沿正Y轴方向延伸的直角槽构成，右侧的流道槽由向一象限延伸的短圆弧槽并穿过四象限后象三象限延伸的长圆弧槽以及与之连通的沿X轴延伸再沿正Y轴方向延伸的直角槽构成。
6. 根据权利要求5所述调温混水阀，其特征在于：所述上、下瓷片均为圆形；所述下瓷片上制有与壳体内四个孔对应的四个通孔；所述上瓷片呈圆形，相对下瓷片的下表面制有上下两条异形流道槽，上部的流道槽由中心圆孔分别向一二象限中部延伸的扇形和向三象限中部延伸的直槽构成，下部流道槽由分别向三四象限延伸的圆弧槽构成。
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