JP2666286B2 - Flow control device - Google Patents
Flow control deviceInfo
- Publication number
- JP2666286B2 JP2666286B2 JP62189775A JP18977587A JP2666286B2 JP 2666286 B2 JP2666286 B2 JP 2666286B2 JP 62189775 A JP62189775 A JP 62189775A JP 18977587 A JP18977587 A JP 18977587A JP 2666286 B2 JP2666286 B2 JP 2666286B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- control device
- flow control
- motor
- water
- 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.)
- Expired - Lifetime
Links
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
- Flow Control (AREA)
- Sliding Valves (AREA)
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は流量制御装置に関するもので、例えば人体局
部洗浄装置の洗浄温水の噴出量を制御する手段として利
用される。
（従来の技術）
本発明に係る従来技術としては、特開昭61−257546号
公報に記載されたものがある。
この従来技術は、通水路の開口度を電磁力によつて可
変する電磁開口度可変手段と、前記開口度の設定を行う
開口度設定手段と、前記開口度設定手段の信号に基づき
前記開口度可変手段を制御する制御手段とを設けた衛生
洗浄装置であり、前記電磁開口度可変手段は、第６図に
示されるように可変抵抗器22を取付けたモータ21、ボデ
イ内に設けられた弁座24,上下することによつて弁座24
間の通水路開口度を可変する弁体25,モータ21の回転に
連動しながら上下し弁体25を動かすシヤフト26とを備え
たもので、水量指示操作をすると、これに応じてモータ
21が回転し、指定値に対応する位置までモータ21に直結
された可変抵抗器22の抵抗値が変化してモータ21が停止
し、これによつて弁座24と弁体25との弁開度が決定され
る。
（発明が解決しようとする問題点）
しかし、上記従来技術においては、シヤフトの上下は
図面から判断すると、モータによりねじ軸を減速駆動
し、ねじ軸上の弁体を変位させるものと考えられる。こ
の変位は弁体の過回転時（往復）弁体が弁座及びボデイ
に衝突し破損を生じる恐れがあり、これを防止すること
は困難である。また、一般にポペツト型弁での開度に比
例するリニアリテイは得にくく、２次曲線的特性となる
ので、その制御は可変抵抗器による応答制御方式でも得
にくいものである。
本発明は上記問題にかんがみ、弁体の衝突破損を生じ
ることなく、且つ、リニアリテイに流量を制御すること
を、その技術的課題とするものである。
〔発明の構成〕
（問題点を解決するための手段）
上記技術的課題を解決するために講じた技術的手段
は、モータと、前記モータによつて駆動される弁軸と、
前記弁軸と一体回動するデイスク弁と、前記デイスク弁
を軸方向に貫通し且つ同一円周上に配置された複数個の
通水孔と、前記デイスク弁の軸方向上下両面に摺動的且
つ水密的に接する開口部と、前記上下両面の開口部に各
々連通する給水路および流出路と、前記モータの回転駆
動により前記各通水孔が前記開口部と符合したときに前
記モータの駆動回転位置を検出する検出手段とを備えた
流量制御装置を行使したことである。
（作用）
上記技術的手段により、弁軸の回動は固定的に止まる
部分がなく、同一回動方向への回動が自由であるため、
ねじ軸駆動のポペツト弁の如き上下して、弁体過回転
時、弁体の締め過ぎによる弁の破損を生じる恐れがな
く、またデイスク弁の回動円周上に、所要の開度の通水
孔を自由に設定できることから、流量と回動角度の比例
性（リニアリテイ）が出し易く、したがつて微調節の流
量制御性の良い制御弁が得られ、従来技術の問題点は解
消される。
（実施例）
以下、本発明の実施例について図面に基づき説明す
る。
第１図〜第４図は流量制御装置を示したものである。
同図において、モータ１に直結された減速器２の駆動
軸３には弁軸４が連結され、減速器２のフランジ部2aに
はモータ取付板５を介して弁支持体６が固定され、弁支
持体６には弁座体７が固定されている。弁支持体６と弁
座体７との間には弁室８のスペースが形成されている。
弁軸４は弁支持体６の軸受部９と弁座体７の軸受部10と
に挿通されて回転可能に支承されている。11は弁軸４と
弁支持体６との水密用軸封部である。12はデイスク弁で
第２図に示されるように、軸方向の面には貫通する通水
孔13を複数個有し且つ回転軸を中心とする円周上に開口
面積の大小順に配置される。尚、円周上の一部には通水
孔13のない部分も有する。このデイスク弁12はピン14を
介して弁軸４に取付けられ駆動軸３によつて駆動され
る。また前記デイスク弁12の通水孔13は他の実施例とし
て単孔であつてもよく、その場合は、第４図に示す如く
通水孔43を設け通水孔43は回動方向に対し断面積を暫時
変化するように構成される。前記弁座体７には給水路15
が設けられデイスク弁12の通水孔13と対向する面に開口
部16を開口している。また前記弁支持体６には流水路17
が設けられている。デイスク弁12の弁支持体６側の弁室
８内には側板18が弁軸４と同軸に設けられ、側板18の下
面はデイスク弁12の上面と接し、弁支持体６側において
は管部19が弁支持体６の流出路17と連通して凹所20内に
挿入され、Ｏリング21により液密的に係止されている。
また側板18の管部19の開口部22は前記給水路15の開口部
16と同一投影面上に同一輪かくでデイスク弁12の通水孔
13に対面している。23は側板18を押圧する付勢ばねで側
板18をデイスク弁12と弁座体７及び側板18とデイスク弁
12の各々の軸方向接触面の隙間をゼロにすべく作用して
いる。ここでデイスク弁12の上下両面及びそれに接する
弁座体７の底面7aと側板18の下面18は各々平坦な滑動面
として形成されており、弁軸４の回動に支障なく相互に
水密的に摺動可能としている。尚、弁支持体６と弁座体
７の間にはＯリング24が介在し水密としている。25は前
記駆動軸３と弁軸４の駆動連結部である。26は弁室８内
の圧力を排除する排水口である。27は弁軸４の回動位置
検出用のフオトインタラプタであり、モータ取付板５に
一体固定された基板28上の駆動軸３回りに複数個配置さ
れており、駆動軸３に固定された回動位置の検出板29と
連動し、デイスク弁12の回動位置を検出制御するもので
検出板29とフオトインタプラタ27にて検出部30が構成さ
れる。そして通水孔13の開口面積に対応して該フオトイ
ンタラプタ27は駆動軸３の円周上の基板28上にＡ〜Ｇが
並設され、且つ、Ｚ位置は開弁なしの位置に対応してい
る。
上記構成により、図示しない操作部からの操作信号に
よつて図示最小流量Ａ位置から所望の中程度の噴水量の
Ｅ位置に回動指令がなされると、現位置の検出部30から
の検出信号を受け図示しない制御部により現位置の指示
信号と指示位置信号の比較判定をして回動方向を決め、
操作指示に従つた位置までモータ１を駆動し、デイスク
弁12を図中右方向へ回動させ、フオトインタラプタ27の
Ｅに対し、検出板29がこれに作用すると停止し、よつて
開口部16,22に対し通水孔13のＥに相当する開口面積が
得られ、流通が設定される。尚、通水孔13の相互間に検
出板29が存在し、操作初期に現位置が不明な場合には制
御回路の指示によつて一端流量を減少する側にデイスク
弁12が回動されて位置確認後、所定の方向へ回動を行う
ように設定されている。また水量をゼロとする場合には
Ｚ位置へ回動される。
第５図は人体局部洗浄装置の給水回路図であつて、前
記流量制御装置は上記給水回路中に設置される。同図に
おいて、31は止水栓、32は逆止弁、33は減圧弁、34はバ
キユームブレーカ、35は洗浄水加熱装置、36は流量制御
装置、37は局部洗浄ノズルであり、止水栓31は水道水圧
源38に接続される。
〔発明の効果〕
以上の如く、モータによつて駆動される弁軸と一体回
動し回動円周上の軸方向に貫通する通水孔を有するデイ
スク弁と、デイスク弁の軸方向上下両面に摺動的且つ水
密的に接する開口部を設けるとともに、モータの駆動回
転位置を検出する検出部を設け、モータの回転により指
定開度にデイスク弁12が回動し、デイスク弁の開度に応
じて流量を制御するようにしたことから弁軸の回動は固
定的に止まる部分がなく、従来、ねじ軸駆動によつて上
下するポペツト弁のように締め過ぎによる弁の破損を生
じる恐れは全くなく、またデイスク弁の回動円周面上に
所要の開度の通水孔を自由に設定でき、流量と回転角度
のリニアリテイが出し易く、制御性のよい流量制御装置
が得られる。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a flow rate control device, and is used, for example, as a means for controlling a blowout amount of cleaning hot water of a human body local cleaning device. (Prior Art) As a prior art according to the present invention, there is one described in Japanese Patent Application Laid-Open No. 61-257546. This prior art includes an electromagnetic opening degree varying means for varying the opening degree of a water passage by electromagnetic force, an opening degree setting means for setting the opening degree, and the opening degree based on a signal from the opening degree setting means. 6. A sanitary washing apparatus provided with control means for controlling a variable means, wherein the electromagnetic opening degree variable means comprises a motor 21 having a variable resistor 22 mounted thereon as shown in FIG. 6, and a valve provided in the body. Seat 24, valve seat 24
A valve body 25 that varies the degree of opening of the water passage between the shaft and a shaft 26 that moves up and down to move the valve body 25 while interlocking with the rotation of the motor 21.
21 rotates, the resistance of the variable resistor 22 directly connected to the motor 21 changes to a position corresponding to the specified value, and the motor 21 stops, whereby the valve seat 24 and the valve body 25 are opened. The degree is determined. (Problems to be Solved by the Invention) However, in the above-described conventional technology, it is considered that the upper and lower portions of the shaft are driven to reduce the speed of the screw shaft by the motor and displace the valve element on the screw shaft, as judged from the drawing. This displacement may cause damage due to the valve body colliding with the valve seat and body when the valve body is over-rotated (reciprocating), and it is difficult to prevent this. Generally, it is difficult to obtain linearity proportional to the degree of opening of a poppet type valve, and it has a quadratic curve characteristic. Therefore, it is difficult to obtain control using a response control method using a variable resistor. SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to control the flow rate in a linear manner without causing the valve body to be damaged by collision. [Structure of the Invention] (Means for Solving the Problems) The technical measures taken to solve the above technical problem include a motor, a valve shaft driven by the motor,
A disk valve that rotates integrally with the valve shaft; a plurality of water holes that penetrate the disk valve in the axial direction and are arranged on the same circumference; and a slidable upper and lower surface in the axial direction of the disk valve. And an opening that is in water-tight contact, a water supply passage and an outflow passage that respectively communicate with the openings on the upper and lower surfaces, and a drive of the motor when each of the water holes matches the opening by rotational driving of the motor. That is, the flow control device provided with the detecting means for detecting the rotational position is exercised. (Operation) Because of the above technical means, there is no portion where the rotation of the valve shaft stops fixedly and the rotation in the same rotation direction is free.
There is no danger of damaging the valve due to excessive tightening of the valve element when the valve element is over-rotated, like a screw shaft driven poppet valve. Since the water hole can be freely set, the proportionality (linearity) between the flow rate and the rotation angle can be easily obtained, and therefore, a control valve having good flow controllability of fine adjustment can be obtained, and the problems of the prior art are solved. . (Example) Hereinafter, an example of the present invention will be described with reference to the drawings. 1 to 4 show a flow control device. In the figure, a valve shaft 4 is connected to a drive shaft 3 of a speed reducer 2 directly connected to a motor 1, and a valve support 6 is fixed to a flange portion 2a of the speed reducer 2 via a motor mounting plate 5, A valve seat 7 is fixed to the valve support 6. A space for the valve chamber 8 is formed between the valve support 6 and the valve seat 7.
The valve shaft 4 is inserted through a bearing 9 of the valve support 6 and a bearing 10 of the valve seat 7 and is rotatably supported. Reference numeral 11 denotes a watertight shaft sealing portion between the valve shaft 4 and the valve support 6. Numeral 12 denotes a disk valve, as shown in FIG. 2, which has a plurality of water passage holes 13 penetrating in the axial direction and which are arranged in the order of opening area on the circumference around the rotation axis. . Note that a part of the circumference has no water passage hole 13. The disk valve 12 is mounted on a valve shaft 4 via a pin 14 and is driven by a drive shaft 3. In addition, the water passage hole 13 of the disk valve 12 may be a single hole as another embodiment. In this case, a water passage hole 43 is provided as shown in FIG. The cross-sectional area is configured to change temporarily. The valve seat 7 has a water supply passage 15.
The opening 16 is opened on the surface of the disk valve 12 facing the water hole 13. The valve support 6 has a flowing water passage 17.
Is provided. A side plate 18 is provided coaxially with the valve shaft 4 in the valve chamber 8 on the valve support 6 side of the disk valve 12, a lower surface of the side plate 18 is in contact with an upper surface of the disk valve 12, and a pipe portion is provided on the valve support 6 side. 19 is inserted into the recess 20 in communication with the outflow passage 17 of the valve support 6 and is liquid-tightly locked by the O-ring 21.
The opening 22 of the pipe 19 of the side plate 18 is the opening of the water supply passage 15.
Water hole of disk valve 12 on the same projection plane as ring 16
Faces 13 Reference numeral 23 denotes an urging spring for pressing the side plate 18 by connecting the side plate 18 to the disc valve 12 and the valve seat 7 and the side plate 18 to the disc valve.
It acts to zero the gap between each of the twelve axial contact surfaces. Here, the upper and lower surfaces of the disk valve 12 and the bottom surface 7a of the valve seat 7 and the lower surface 18 of the side plate 18 which are in contact therewith are each formed as a flat sliding surface, and are watertight with each other without hindering the rotation of the valve shaft 4. It is slidable. An O-ring 24 is interposed between the valve support 6 and the valve seat 7 so as to be watertight. Reference numeral 25 denotes a drive connection between the drive shaft 3 and the valve shaft 4. Reference numeral 26 denotes a drain port for removing the pressure in the valve chamber 8. Reference numeral 27 denotes a photo-interrupter for detecting the rotational position of the valve shaft 4. A plurality of photo-interrupters are arranged around the drive shaft 3 on a substrate 28 integrally fixed to the motor mounting plate 5. The detection unit 29 is configured to detect and control the rotation position of the disk valve 12 in conjunction with the detection plate 29 of the movement position. In accordance with the opening area of the water hole 13, the photointerrupter 27 is provided with A to G in parallel on a substrate 28 on the circumference of the drive shaft 3, and the Z position corresponds to a position without valve opening. ing. According to the above configuration, when a rotation command is issued from the minimum flow rate A position shown in the figure to the position E of the desired medium fountain amount by an operation signal from an operation unit (not shown), the detection signal from the current position detection unit 30 is obtained. Then, the control unit (not shown) compares and determines the current position instruction signal and the instruction position signal to determine the rotation direction,
The motor 1 is driven to the position in accordance with the operation instruction, and the disk valve 12 is rotated rightward in the drawing. When the detection plate 29 acts on E of the photointerrupter 27, it stops, and the opening 16 , 22 are provided with an opening area corresponding to E of the water passage hole 13, and the flow is set. Note that a detection plate 29 exists between the water holes 13, and if the current position is unknown at the beginning of the operation, the disk valve 12 is turned to one side to decrease the flow rate by an instruction of the control circuit. After the position is confirmed, it is set to rotate in a predetermined direction. When the amount of water is set to zero, it is turned to the Z position. FIG. 5 is a diagram of a water supply circuit of the human body local cleaning device, wherein the flow control device is installed in the water supply circuit. In the same figure, 31 is a water stopcock, 32 is a check valve, 33 is a pressure reducing valve, 34 is a buck breaker, 35 is a washing water heating device, 36 is a flow control device, 37 is a local washing nozzle, The tap 31 is connected to a tap water pressure source 38. [Effects of the Invention] As described above, a disc valve having a water passage hole that rotates integrally with a valve shaft driven by a motor and penetrates in the axial direction on a rotation circumference, and both upper and lower surfaces in the axial direction of the disk valve In addition to providing an opening that is slidably and water-tightly contacting the sensor, a detection unit that detects the rotational position of the motor is provided. Since the flow rate is controlled accordingly, there is no part where the rotation of the valve shaft stops fixedly.There is no possibility that the valve may be damaged due to excessive tightening like a poppet valve that moves up and down by screw shaft drive. A water flow hole having a required degree of opening can be freely set on the circumferential surface of the disk valve and a linearity of the flow rate and the rotation angle can be easily obtained, and a flow rate control device with good controllability can be obtained.
【図面の簡単な説明】
第１図は本発明実施例による流量制御装置の縦断面図、
第２図は第１図のイ−イ視断面図、第３図は第１図の弁
支持体を除くロ−ロ視断面図、第４図は第２図の他の実
施例を示す説明図、第５図は人体局部洗浄装置の給水回
路図、第６図は従来技術における電磁開口度可変手段の
断面図である。
１……モータ,4……弁軸，
12……デイスク弁，
13,43……通水孔，
15……給水路,16,22……開口部，
17……流出路,18……側板，
23……付勢バネ,30……検出部，
36……流量制御装置。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a flow control device according to an embodiment of the present invention,
FIG. 2 is a sectional view taken along the line II in FIG. 1, FIG. 3 is a sectional view taken along the line except for the valve support of FIG. 1, and FIG. 4 is a view showing another embodiment of FIG. FIG. 5 is a water supply circuit diagram of the human body local cleaning device, and FIG. 6 is a sectional view of a conventional electromagnetic aperture varying means. 1 ... motor, 4 ... valve shaft, 12 ... disk valve, 13,43 ... water hole, 15 ... water supply passage, 16,22 ... opening, 17 ... outflow passage, 18 ... side plate , 23 ... biasing spring, 30 ... detection unit, 36 ... flow control device.
Claims (1)
前記弁軸と一体回動するデイスク弁と、前記デイスク弁
を軸方向に貫通し且つ同一円周上に配置された複数個の
通水孔と、前記デイスク弁の軸方向上下両面に摺動的且
つ水密的に接する開口部と、前記上下両面の開口部に各
々連通する給水路および流出路と、前記モータの回転駆
動により前記各通水孔が前記開口部と符合したときに前
記モータの駆動回転位置を検出する検出手段とを備えた
流量制御装置。 ２．前記デイスク弁の軸方向上下両面を前記開口部に摺
動的且つ水密的に接触させる手段は、前記弁軸上に取付
けられ前記デイスク弁の上面と当接する側板と、前記側
板を押圧する付勢バネである特許請求の範囲第１項に示
す流量制御装置。 ３．人体局部洗浄装置の給水回路中に設置された特許請
求の範囲第１項または第２項に示す流量制御装置。(57) [Claims] A motor, a valve shaft driven by the motor,
A disk valve that rotates integrally with the valve shaft; a plurality of water holes that penetrate the disk valve in the axial direction and are arranged on the same circumference; and a slidable upper and lower surface in the axial direction of the disk valve. And an opening that is in water-tight contact, a water supply passage and an outflow passage that respectively communicate with the openings on the upper and lower surfaces, and a drive of the motor when each of the water holes matches the opening by rotational driving of the motor. A flow control device comprising: a detection unit that detects a rotational position. 2. The means for slidably and watertightly contacting the upper and lower surfaces in the axial direction of the disk valve with the opening portion is a side plate mounted on the valve shaft and in contact with the upper surface of the disk valve, and an urging device for pressing the side plate. The flow control device according to claim 1, wherein the flow control device is a spring. 3. 3. The flow control device according to claim 1, wherein the flow control device is installed in a water supply circuit of a human body local cleaning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62189775A JP2666286B2 (en) | 1987-07-29 | 1987-07-29 | Flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62189775A JP2666286B2 (en) | 1987-07-29 | 1987-07-29 | Flow control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6435191A JPS6435191A (en) | 1989-02-06 |
| JP2666286B2 true JP2666286B2 (en) | 1997-10-22 |
Family
ID=16246989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62189775A Expired - Lifetime JP2666286B2 (en) | 1987-07-29 | 1987-07-29 | Flow control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2666286B2 (en) |
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| JP5935191B2 (en) * | 2013-08-06 | 2016-06-15 | リンナイ株式会社 | Thermal power control device |
| CN105387226B (en) * | 2015-12-25 | 2018-03-02 | 南京西普环保科技有限公司 | A kind of self-sealed flow control valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614457Y2 (en) * | 1977-05-13 | 1981-04-04 | ||
| JPS61185111U (en) * | 1985-05-08 | 1986-11-18 |
-
1987
- 1987-07-29 JP JP62189775A patent/JP2666286B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235406A (en) * | 2014-09-15 | 2014-12-24 | 上海采科实业有限公司 | Water-saving frost valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6435191A (en) | 1989-02-06 |
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