JPH06288482A - Mixing valve - Google Patents
Mixing valveInfo
- Publication number
- JPH06288482A JPH06288482A JP4105845A JP10584592A JPH06288482A JP H06288482 A JPH06288482 A JP H06288482A JP 4105845 A JP4105845 A JP 4105845A JP 10584592 A JP10584592 A JP 10584592A JP H06288482 A JPH06288482 A JP H06288482A
- Authority
- JP
- Japan
- Prior art keywords
- water valve
- hot water
- valve seat
- valve
- distance
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Details Of Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、給湯器に多く用いら
れ、高温湯と冷水とを混合して適温の湯を供給する混合
弁、特に１軸式で弁座に対して流れの下流側に弁部材が
配置された混合弁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is widely used in water heaters, and is a mixing valve for mixing hot water and cold water to supply hot water of a suitable temperature, particularly a single-shaft type, which is a downstream side of a flow with respect to a valve seat. The present invention relates to a mixing valve in which a valve member is arranged.
【０００２】[0002]
【従来の技術】従来、混合弁として各種のものが知られ
ているが、給湯器においては、１本の駆動軸（弁軸）に
２個の弁部材を設け、両弁部材をそれぞれ異なる弁座に
対して流れの下流側に配置して水用弁と湯用弁を形成
し、弁軸を駆動することによって水用弁と湯用弁の開度
を制御して混合される高温湯と冷水の流量を調節し、流
出口から流出する出湯温度を調整する１軸式混合弁（以
下、単に混合弁という）が多く用いられている。2. Description of the Related Art Conventionally, various types of mixing valves have been known, but in a water heater, two valve members are provided on one drive shaft (valve shaft), and both valve members are different valves. A hot water to be mixed by controlling the opening of the water valve and the hot water valve by arranging the water valve and the hot water valve arranged on the downstream side of the seat with respect to the seat and driving the valve shaft. A single-shaft mixing valve (hereinafter, simply referred to as a mixing valve) that adjusts the flow rate of cold water and adjusts the temperature of hot water flowing out from the outlet is often used.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の混合弁においては、図４に示すように、弁体Ａの両
端に外向きの水用弁部材Ａ1 と湯用弁部材Ａ2 とが設け
られ、水用流路Ｄに設けられた水用弁座Ｂと湯用流路に
設けられた湯用弁座Ｃとに、弁座Ｂ，Ｃに対して流れの
下流側でそれぞれ対向しており、水用弁部材Ａ1 と湯用
弁部材Ａ2 との端面間の距離である弁体長さａ1 が、水
用弁座Ｂと湯用弁座Ｃとの間の距離である弁座間距離ｂ
1 より小さく形成されている（ａ1 ＜ｂ1 ）から、水用
弁部材Ａ1と湯用弁部材Ａ2 とが水用弁座Ｂと湯用弁座
Ｃとからそれぞれ離れた位置にある時に、弁体Ａが不安
定になり、冷水流と高温湯流とが弁体Ａを押圧すること
によって弁体Ａが振動し、この弁体Ａの振動によって水
用弁部材Ａ1 と水用弁座Ｂとの間の開口面積、及び湯用
弁部材Ａ2 と湯用弁座Ｃとの間の開口面積が変動し、冷
水と高温湯との流量比が変動して出湯温度がハンチング
しているように不安定になるという問題があった。However, in the above-mentioned conventional mixing valve, as shown in FIG. 4, an outward water valve member A 1 and a hot water valve member A 2 are provided at both ends of the valve body A. The water valve seat B provided in the water flow path D and the hot water valve seat C provided in the hot water flow path face the valve seats B and C on the downstream side of the flow. The valve body length a 1 which is the distance between the end faces of the water valve member A 1 and the hot water valve member A 2 is the distance between the water valve seat B and the hot water valve seat C. Sitting distance b
Since it is formed smaller than 1 (a 1 <b 1 ), the water valve member A 1 and the hot water valve member A 2 are located away from the water valve seat B and the hot water valve seat C, respectively. At this time, the valve body A becomes unstable, and the cold water flow and the high temperature hot water flow press the valve body A to vibrate the valve body A. The vibration of the valve body A causes the water valve member A 1 and water The opening area with the valve seat B and the opening area between the hot water valve member A 2 and the hot water valve seat C are changed, the flow rate ratio between the cold water and the hot water is changed, and the hot water outlet temperature is hunted. There was a problem that it became unstable as described above.
【０００４】本発明の目的は、弁体の振動を抑制し、混
合出湯温度を安定させることのできる混合弁を提供する
ことである。An object of the present invention is to provide a mixing valve capable of suppressing the vibration of the valve body and stabilizing the temperature of the mixed hot water.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明の混合弁は、冷水入口に連通する水用弁座と、
高温湯入口に連通する湯用弁座と、水用弁座と湯用弁座
とに連通する混合室とを備え、水用弁座と湯用弁座とに
対して流れの下流側に水用弁部材と湯用弁部材とがそれ
ぞれ配置された１軸式の混合弁において、水用弁部材と
湯用弁部材の先端に最大流量を確保できる間隙を水用弁
座と湯用弁座との間にそれぞれ形成する断面積一定の延
長部を設け、水用弁部材の延長部先端と湯用弁部材の延
長部先端との間の距離である弁体長さａを弁座間距離ｂ
より大きく、両延長部の基部間の距離ｃを弁座間距離ｂ
より小さくした（ａ＞ｂ＞ｃ）ものであり、弁体がどの
位置に移動した場合においても、弁部材の少なくとも延
長部が水用弁座又は湯用弁座から外れることがなく、弁
体と水用弁座又は湯用弁座とが常に重なった状態である
から、水用弁座又は湯用弁座内において調芯作用が働い
て弁体が安定し、流れによる振動が発生することはな
い。In order to achieve the above object, a mixing valve of the present invention comprises a water valve seat communicating with a cold water inlet,
A hot water valve seat communicating with the high temperature hot water inlet and a mixing chamber communicating with the water valve seat and the hot water valve seat are provided, and water is provided on the downstream side of the flow with respect to the water valve seat and the hot water valve seat. In a 1-axis type mixing valve in which a water valve member and a hot water valve member are respectively arranged, a water valve seat and a hot water valve seat are provided with a gap capable of ensuring a maximum flow rate at the tips of the water valve member and the hot water valve member. An extension part having a constant cross-sectional area is provided between the valve seat length b and the valve seat length a, which is the distance between the tip end of the extension part of the water valve member and the tip end of the extension part of the hot water valve member.
The distance c between the bases of both extensions is greater than the valve seat distance b.
It is made smaller (a>b> c), and no matter where the valve body moves, at least the extension of the valve member does not come off from the water valve seat or the hot water valve seat, and the valve body Since the water valve seat and the hot water valve seat are always overlapped with each other, the centering action works in the water valve seat or the hot water valve seat to stabilize the valve element and generate vibration due to the flow. There is no.
【０００６】[0006]
【実施例】本発明の実施例を図に基づいて説明すると、
図１において、混合弁のケーシング１は、冷水流路２
と、高温湯流路３と、混合室（又は弁室）４と、混合湯
流出路５とを備えており、冷水流路２は、冷水供給路に
接続される冷水入口20と、混合室４に向かって開口する
水用弁座21と、水用弁座21に対向して混合室４と反対側
の側壁から突出する有底筒状のガイド23とを備えてい
る。高温湯流路３は、高温湯供給路に接続される高温湯
入口30と、混合室４に向かって開口する湯用弁座31とを
備えている。Embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, the casing 1 of the mixing valve includes a cold water flow path 2
A hot water flow path 3, a mixing chamber (or valve chamber) 4, and a mixed hot water outflow path 5. The cold water flow path 2 includes a cold water inlet 20 connected to a cold water supply path, and a mixing chamber. 4 is provided with a water valve seat 21 that opens toward 4, and a bottomed tubular guide 23 that faces the water valve seat 21 and projects from the side wall opposite to the mixing chamber 4. The hot water passage 3 includes a hot water inlet 30 connected to the hot water supply passage and a hot water valve seat 31 opening toward the mixing chamber 4.
【０００７】冷水流路２と高温湯流路３と混合室４とを
貫通して弁軸７が配置されており、弁軸７の弁体取付部
71に水用弁部材61と湯用弁部材62とを両端に備えた弁体
６を嵌装して水用弁座21と湯用弁座31の流れに対して下
流側に位置させ、バネ部材63により弁体取付部71後端に
形成された拡径部73の段部に弁体６を押圧固定してい
る。弁軸７の弁体取付部71の先端に弁体取付部71より小
径で冷水流路２内のガイド22の孔に摺動自在に嵌合する
水側ガイド体72が突設され、ガイド22内に摺動自在に挿
入されており、拡径部73の後端に続いてさらに大径のガ
イド部74と、ガイド部74より小径で外周にネジ溝が形成
されたネジ部75と、後端の駆動ギヤ（図示せず）と噛み
合うギヤ部76が形成され、ガイド部74には複数の環状溝
77が設けられてＯリング78がそれぞれ嵌装されている。A valve shaft 7 is arranged so as to penetrate through the cold water flow path 2, the hot water flow path 3 and the mixing chamber 4, and the valve body mounting portion of the valve shaft 7 is disposed.
A valve element 6 having a water valve member 61 and a hot water valve member 62 at both ends is fitted in 71 to be positioned on the downstream side with respect to the flow of the water valve seat 21 and the hot water valve seat 31, and a spring is provided. The member 63 presses and fixes the valve body 6 on the stepped portion of the expanded diameter portion 73 formed at the rear end of the valve body mounting portion 71. A water-side guide body 72, which has a smaller diameter than that of the valve body mounting portion 71 and slidably fits into a hole of the guide 22 in the cold water flow path 2, is provided at the tip of the valve body mounting portion 71 of the valve shaft 7. The guide portion 74 is slidably inserted in the inside of the expanded diameter portion 73 and has a larger diameter, and a screw portion 75 having a smaller diameter than the guide portion 74 and a thread groove formed on the outer periphery. A gear portion 76 that meshes with the end drive gear (not shown) is formed, and the guide portion 74 has a plurality of annular grooves.
77 are provided and O-rings 78 are fitted respectively.
【０００８】高温湯流路３の混合室４と反対側開口に支
持中間筒８が嵌合固定されており、支持中間筒８の内孔
は弁軸７のガイド部74が摺動自在に嵌合される中間ガイ
ド部81と、内面にネジ溝が形成されて弁軸７のネジ部75
が螺合する中間ネジ部82とを備え、支持中間筒８の外周
に環状溝83が形成されてＯリングが嵌装されている。支
持中間筒８の外端には固定板９が固定され、固定板９に
モータボックス10がボルト11により固定されており、モ
ータボックス10内にモータ並びに駆動ギヤが配設されて
いる。A support intermediate cylinder 8 is fitted and fixed in an opening of the high temperature hot water passage 3 opposite to the mixing chamber 4, and a guide portion 74 of the valve shaft 7 is slidably fitted in an inner hole of the support intermediate cylinder 8. The intermediate guide portion 81 to be fitted and the threaded portion 75 of the valve shaft 7 formed with a thread groove on the inner surface.
And an intermediate threaded portion 82 which is screwed together, and an annular groove 83 is formed on the outer periphery of the support intermediate cylinder 8 to fit an O-ring. A fixed plate 9 is fixed to the outer end of the support intermediate cylinder 8, a motor box 10 is fixed to the fixed plate 9 with bolts 11, and a motor and a drive gear are arranged in the motor box 10.
【０００９】図２の要部拡大図において、弁体６の弁部
材61（62）は混合室４側端から、水用弁座21（湯用弁座
31）に摺動自在に嵌合して全閉状態とする断面積一定の
円筒状全閉部611 （621 ）と、曲面の外形を備えて水用
弁座21（湯用弁座31）との間の開口面積を調整すること
によって流量を調節する流量調節部612 （622 ）と、断
面積一定（最大流量の開口面積を確保）で突出形成され
た延長部613 （623 ）とを備えている。In the enlarged view of the essential part of FIG. 2, the valve member 61 (62) of the valve body 6 is arranged from the end on the mixing chamber 4 side to the water valve seat 21 (hot water valve seat).
31) A fully closed cylindrical portion 611 (621) with a constant cross-sectional area that is slidably fitted into the valve 31 and a water valve seat 21 (hot water valve seat 31) with a curved outer shape. A flow rate adjusting part 612 (622) for adjusting the flow rate by adjusting the opening area between the two, and an extension part 613 (623) formed so as to project with a constant cross-sectional area (ensure the opening area of the maximum flow rate). There is.
【００１０】図３の要部拡大図において、弁体６の延長
部613 端から延長部623 端までの長さである弁体長さａ
は、水用弁座21と湯用弁座31との間の距離である弁座間
距離ｂよりも大きく、流量調節部612 先端（延長部613
基端）から流量調節部622 先端（延長部623 基端）まで
の距離ｃは弁座間距離ｂよりも小さくする（ａ＞ｂ＞
ｃ）。In the enlarged view of the main part of FIG. 3, the valve body length a is the length from the end of the extension 613 to the end of the extension 623 of the valve body 6.
Is greater than the valve seat distance b which is the distance between the water valve seat 21 and the hot water valve seat 31, and is the tip of the flow rate adjusting unit 612 (extension part 613).
The distance c from the base end to the tip of the flow rate adjusting part 622 (base end of the extension part 623) is smaller than the valve seat distance b (a>b>).
c).
【００１１】上述の構成により、弁体６がどの位置に移
動した場合においても、弁体６の少なくとも延長部613
，623 が水用弁座21又は湯用弁座31から外れることが
なく、弁体６と水用弁座21又は湯用弁座31とが常に重な
った状態であるから、水用弁座21又は湯用弁座31内にお
いて調芯作用が働いて弁体６が安定し、流れによる振動
が発生することはない。例えば、弁体長さａが、弁座間
距離ｂの２倍と距離ｃとの差よりも十分に大きい値であ
る（ａ＞２ｂ−ｃ）時は、水用弁部材61と水用弁座21と
が最大開度、湯用弁部材62と湯用弁座31とが全閉の位置
において、水用弁部材61の延長部613 が水用弁座21内に
位置している。With the above-mentioned structure, no matter what position the valve body 6 moves to, at least the extension 613 of the valve body 6 is provided.
, 623 does not come off from the water valve seat 21 or the hot water valve seat 31, and the valve body 6 and the water valve seat 21 or the hot water valve seat 31 are always overlapped. Alternatively, the centering action works in the hot water valve seat 31 to stabilize the valve body 6, and the vibration due to the flow does not occur. For example, when the valve body length a is a value that is sufficiently larger than the difference between the double distance b between the valve seats and the distance c (a> 2b-c), the water valve member 61 and the water valve seat 21. And the maximum opening, and the hot water valve member 62 and the hot water valve seat 31 are fully closed, the extension portion 613 of the water valve member 61 is located in the water valve seat 21.
【００１２】[0012]
【発明の効果】本発明は、上述のとおり構成されている
から、弁体がどの位置に移動した場合においても、弁部
材の少なくとも延長部が水用弁座又は湯用弁座から外れ
ることがなく、弁体と水用弁座又は湯用弁座とが常に重
なった状態であるから、水用弁座又は湯用弁座内におい
て調芯作用が働いて弁体が安定し、流れによる振動が発
生することがなく、安定した出湯温度を確保することが
できる。EFFECTS OF THE INVENTION Since the present invention is constructed as described above, at least the extended portion of the valve member can be disengaged from the water valve seat or the hot water valve seat regardless of the position of the valve body. However, since the valve body and the water valve seat or hot water valve seat are always overlapped with each other, the centering action works in the water valve seat or hot water valve seat to stabilize the valve body, and vibration due to flow It is possible to secure a stable hot water discharge temperature without causing
【図１】 本発明に係る混合弁の断面図である。1 is a cross-sectional view of a mixing valve according to the present invention.
【図２】 本発明における混合弁の要部拡大説明図であ
る。FIG. 2 is an enlarged explanatory view of a main part of a mixing valve according to the present invention.
【図３】 本発明における弁部材の構造を示す拡大図で
ある。FIG. 3 is an enlarged view showing a structure of a valve member according to the present invention.
【図４】 従来の混合弁の要部拡大説明図である。FIG. 4 is an enlarged explanatory view of a main part of a conventional mixing valve.
１ 混合弁のケーシング、２ 冷水流路、３ 高温湯流
路、４ 混合室 ５ 混合湯流出路、６ 弁体、７ 弁軸、８ 支持中間
筒、21 水用弁座 31 湯用弁座、61 水用弁部材、62 湯用弁部材1 mixing valve casing, 2 cold water flow path, 3 high temperature hot water flow path, 4 mixing chamber 5 mixing hot water outflow path, 6 valve body, 7 valve shaft, 8 support intermediate cylinder, 21 water valve seat 31 hot water valve seat, 61 Water valve member, 62 Hot water valve member
───────────────────────────────────────────────────── フロントページの続き (72)発明者 濱田 誠 兵庫県神戸市中央区明石町32番地 株式会 社ノーリツ内 (72)発明者 吉田 晶 兵庫県神戸市中央区明石町32番地 株式会 社ノーリツ内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Makoto Hamada 32 Akashi-cho, Chuo-ku, Kobe City, Hyogo Prefecture Noritsu Stock Company (72) Inventor Akira Yoshida 32 Akashi-cho, Chuo-ku, Kobe City Hyogo Prefecture Noritsu Within
Claims (1)
え、水用弁座と湯用弁座とに対して流れの下流側に水用
弁部材と湯用弁部材とがそれぞれ配置された１軸式の混
合弁において、水用弁部材と湯用弁部材の先端に最大流
量を確保できる間隙を水用弁座と湯用弁座との間にそれ
ぞれ形成する断面積一定の延長部を設け、水用弁部材の
延長部先端と湯用弁部材の延長部先端との間の距離であ
る弁体長さａを弁座間距離ｂより大きく、両延長部の基
部間の距離ｃを弁座間距離ｂより小さくしたことを特徴
とする混合弁。1. A water valve seat, a hot water valve seat, and a mixing chamber, wherein a water valve member and a hot water valve member are provided downstream of the flow with respect to the water valve seat and the hot water valve seat. In a single-screw mixing valve in which the water valve member and the hot water valve member are respectively disposed, a gap is formed between the water valve seat and the hot water valve seat so that a maximum flow rate can be secured at the tips of the water valve member and the hot water valve member. An extension having a constant area is provided, and the valve body length a, which is the distance between the tip of the extension of the water valve member and the tip of the extension of the hot water valve member, is greater than the valve seat distance b and the distance between the bases of both extensions. Is smaller than the distance b between valve seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4105845A JP2630162B2 (en) | 1992-03-31 | 1992-03-31 | Mixing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4105845A JP2630162B2 (en) | 1992-03-31 | 1992-03-31 | Mixing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06288482A true JPH06288482A (en) | 1994-10-11 |
| JP2630162B2 JP2630162B2 (en) | 1997-07-16 |
Family
ID=14418359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4105845A Expired - Fee Related JP2630162B2 (en) | 1992-03-31 | 1992-03-31 | Mixing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2630162B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011033088A (en) * | 2009-07-30 | 2011-02-17 | Rinnai Corp | Three-way valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734372U (en) * | 1980-08-04 | 1982-02-23 | ||
| JPS60205078A (en) * | 1984-03-27 | 1985-10-16 | Matsushita Electric Ind Co Ltd | Combination mixer for hot water and cold water |
| JPS6124779U (en) * | 1984-07-20 | 1986-02-14 | 富士通株式会社 | Large display panel device |
| JPS6330858U (en) * | 1986-08-13 | 1988-02-29 |
-
1992
- 1992-03-31 JP JP4105845A patent/JP2630162B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734372U (en) * | 1980-08-04 | 1982-02-23 | ||
| JPS60205078A (en) * | 1984-03-27 | 1985-10-16 | Matsushita Electric Ind Co Ltd | Combination mixer for hot water and cold water |
| JPS6124779U (en) * | 1984-07-20 | 1986-02-14 | 富士通株式会社 | Large display panel device |
| JPS6330858U (en) * | 1986-08-13 | 1988-02-29 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011033088A (en) * | 2009-07-30 | 2011-02-17 | Rinnai Corp | Three-way valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2630162B2 (en) | 1997-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1118049B1 (en) | Improved thermostatic mixing valve | |
| JPH11194831A (en) | Flow rate control valve | |
| JP2003523849A (en) | Extruder with blister | |
| TWI633248B (en) | Valve with replaceable cartridge | |
| JP6530278B2 (en) | Premixer | |
| EP0740808B1 (en) | A thermostatic mixing valve | |
| JPH06288482A (en) | Mixing valve | |
| JPH09144934A (en) | Solenoid proportional relief valve | |
| US6604687B2 (en) | Thermal fluid control valve | |
| JP2006329304A (en) | Mixing faucet of automatic temperature control type | |
| JPH11108217A (en) | Pressure balancer between cold water and hot water | |
| US3521662A (en) | Throttle valve | |
| JP3029114B2 (en) | Valve support structure | |
| JP4591860B2 (en) | Hot water tap | |
| JP2001254868A (en) | Water and hot water mixing device | |
| EP1078132A1 (en) | Pressure responsive flow regulator | |
| US6863088B2 (en) | Replaceable oriface unit | |
| JP2003042335A (en) | Combination faucet | |
| JP3310149B2 (en) | Hot water mixer tap | |
| CN219655354U (en) | Automatic pressure stabilizing valve structure of pressure stabilizing furnace | |
| CN219035617U (en) | Angle valve free of punching | |
| US2527733A (en) | Valve | |
| JPH0960760A (en) | Water/hot-water mixing faucet | |
| JP2004251383A (en) | Combination faucet | |
| JPH09137877A (en) | Thermostat for mixing valve for water combination faucet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080418 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090418 Year of fee payment: 12 |
|
| LAPS | Cancellation because of no payment of annual fees |