JPH11153238A - Switching valve - Google Patents
Switching valveInfo
- Publication number
- JPH11153238A JPH11153238A JP32116997A JP32116997A JPH11153238A JP H11153238 A JPH11153238 A JP H11153238A JP 32116997 A JP32116997 A JP 32116997A JP 32116997 A JP32116997 A JP 32116997A JP H11153238 A JPH11153238 A JP H11153238A
- Authority
- JP
- Japan
- Prior art keywords
- contact surface
- switching
- operating
- contact
- valve
- 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.)
- Pending
Links
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、複数の流路をバ
イパス通路を切り替えて、制御する切替バルブに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching valve for controlling a plurality of flow paths by switching a bypass path.
【０００２】[0002]
【従来の技術】複数の液体・気体等の流体の流路を制御
する切り替えバルブでは、流路の開口７、８、９が臨ん
だバルブ本体１の制御面２に、バイパス通路３を有する
切替手段４の接触面５を密着して構成してあった（図１
（ａ）（ｂ））。そして、切替手段４を回転させて、バ
イパス回路３に接続する流路を切り替え、流れを制御し
ていた。2. Description of the Related Art In a switching valve for controlling a flow path of a plurality of fluids such as liquids and gases, a switching path having a bypass passage 3 in a control surface 2 of a valve body 1 in which openings 7, 8, 9 of the flow path face. The contact surface 5 of the means 4 was configured in close contact (FIG. 1).
(A) (b)). Then, the switching means 4 is rotated to switch the flow path connected to the bypass circuit 3 to control the flow.
【０００３】前記従来の場合、切替手段４を所定角度で
停止できるように、静止位置を制御する為に切替手段４
（あるいはバルブ本体１）にストッパー１０を設け、バ
ルブ本体１（あるいは切替え手段４）の案内切欠１１内
に臨ませていた。In the conventional case, the switching means 4 is controlled to control the rest position so that the switching means 4 can be stopped at a predetermined angle.
The stopper 10 is provided in the valve body 1 (or the valve body 1) and faces the guide notch 11 of the valve body 1 (or the switching means 4).
【０００４】即ち、位置ａでは、ストッパー１０は案内
切欠１１の一端１１ｂにあり、流路の開口７、８がバイ
パス通路３で連通している（図１（ｃ））。また、位置
ａから切替手段４を回転させた位置ｂでは、ストッパー
１０は案内切欠１１の他端１１ａにあり、流路の開口
７、９がバイパス回路３で連通している（図１
（ｃ））。That is, at the position a, the stopper 10 is located at one end 11b of the guide notch 11, and the openings 7 and 8 of the flow path communicate with the bypass passage 3 (FIG. 1 (c)). Further, at the position b where the switching means 4 is rotated from the position a, the stopper 10 is at the other end 11a of the guide notch 11, and the openings 7 and 9 of the flow path are connected by the bypass circuit 3 (FIG. 1).
(C)).
【０００５】[0005]
【発明が解決しようとする課題】前記従来のバルブを自
動制御しようとした場合、その動力源として、主に電動
モーターが用いられてきた。電動モーターによって切替
手段４を回転させた場合、他に回転位置検出手段を有し
たとしても、切替手段４の切替速度（回転速度）を早め
ようとすると、ストッパー１０が案内切欠１１の端１１
ａ、１１ｂに衝突して、ストッパー１０が破損するかモ
ーター（ギアボックスの歯車）が破損する問題点があっ
た。When attempting to automatically control the conventional valve, an electric motor has been mainly used as a power source. When the switching means 4 is rotated by an electric motor, even if the switching means 4 is provided with an additional rotation position detecting means, if the switching speed (rotation speed) of the switching means 4 is to be increased, the stopper 10 is moved to the end 11 of the guide notch 11.
There is a problem that the stopper 10 is damaged or the motor (gear of the gear box) is damaged by colliding with a or 11b.
【０００６】これを回避する為、ストッパー１０を取り
外し、他の回転位置検出手段（例えば、接点スイッチ、
ロータリーエンコーダー等）を用いて、バルブを自動制
御することも試みられていた。この場合、切替位置精度
を高めようとすると、切替速度を早くするすることがで
きず、切替速度を早くすると位置精度を求めることが困
難となる問題点があった。In order to avoid this, the stopper 10 is removed and other rotational position detecting means (for example, a contact switch,
It has been attempted to automatically control the valve using a rotary encoder or the like. In this case, there is a problem that it is not possible to increase the switching speed to increase the switching position accuracy, and it is difficult to obtain the position accuracy when the switching speed is increased.
【０００７】更に、流体の流路を切り替える場合、流体
はバルブに向けて流れ続けているので、迅速で正確な切
り替えが要求され、切り替え速度が遅い場合には、バル
ブの耐圧強度を必要以上に高める構造としなければなら
なかった。Further, when the flow path of the fluid is switched, the fluid continues to flow toward the valve, so that quick and accurate switching is required. When the switching speed is slow, the pressure resistance of the valve is increased more than necessary. The structure had to be enhanced.
【０００８】[0008]
【課題を解決するための手段】然るに、この発明は、切
替手段に、第一接触面、第二接触面を設け、バルブ本体
の制御面に第一接触面を密着させ、第二接触面にモータ
ーからの回転を伝える作動手段の作動面を密着させ、制
御面と第一接触面との摩擦力を、第二接触面と作動面と
の摩擦力より小さく形成したので、前記問題点を解決
し、切替位置精度を保ちながら、切替速度を従来の５倍
以上に早めることを可能とした。According to the present invention, the switching means is provided with a first contact surface and a second contact surface, the first contact surface is brought into close contact with the control surface of the valve body, and the second contact surface is brought into contact with the second contact surface. Since the working surface of the operating means for transmitting the rotation from the motor is brought into close contact with each other and the friction force between the control surface and the first contact surface is formed smaller than the friction force between the second contact surface and the working surface, the above-mentioned problem is solved. In addition, the switching speed can be increased to five times or more of the conventional speed while maintaining the switching position accuracy.
【０００９】即ちこの発明は、流入口又流出口用の複数
の流体路の開口が臨んだ制御面を有するバルブ本体に、
該制御面に接触する第一接触面を有すると共に、前記開
口の一つ又は複数と連通するバイパス通路を有する切替
手段を連結して、該切り替え手段を回転させて、経路を
切り換えるバルブにおいて、前記切り換え手段の他面に
第二接触面を形成し、前記第２接触面に、モーターに連
結した作動手段の作動面を密着してなり、前記第一接触
面と制御面との摩擦力を、前記第二接触面と作動面との
摩擦力より小さく形成したことを特徴とする切替バルブ
である。That is, the present invention provides a valve body having a control surface facing the openings of a plurality of fluid passages for an inlet and an outlet.
A valve that has a first contact surface that contacts the control surface, and that connects switching means having a bypass passage communicating with one or more of the openings, and that rotates the switching means to switch the path; A second contact surface is formed on the other surface of the switching means, and an operation surface of an operation means connected to a motor is in close contact with the second contact surface, and a frictional force between the first contact surface and the control surface is obtained. A switching valve formed to be smaller than a frictional force between the second contact surface and the operating surface.
【００１０】また、第一接触面と制御面との組合わせ、
第二接触面と作動面との組合わせ、を夫々異なった材質
で形成し、その組合わせの相違により摩擦力の差を生じ
させる構成としたことを特徴とする切替バルブである。
更に、第一接触面と制御面との接触する面、第二接触面
と作動面との接触する面、を夫々異なった外径による構
成とし、その外径の相違により摩擦力の差を生じさせる
構成としたことを特徴とする切替バルブである。A combination of the first contact surface and the control surface,
A combination of a second contact surface and an operating surface is formed of different materials, and a difference in the combination causes a difference in frictional force.
Furthermore, the surface where the first contact surface contacts the control surface and the surface where the second contact surface contacts the operating surface are configured with different outer diameters, and the difference in the outer diameter causes a difference in frictional force. The switching valve is characterized in that the switching valve is configured to be operated.
【００１１】前記における摩擦力の大小を形成すると
は、例えば、一方の組合わせ（制御面と第一接触面）に
生じる摩擦力を、他方の組合わせ（第二接触面と作動
面）に生じる摩擦力より小さくすればよいので、以下の
ような組み合わせとすることができる。In the above description, forming the magnitude of the frictional force means, for example, that the frictional force generated in one combination (the control surface and the first contact surface) is generated in the other combination (the second contact surface and the operation surface). Since it is sufficient to make the frictional force smaller than the frictional force, the following combinations can be made.
【００１２】一方（制御面、第一接触面の一つ又は両
方）を他方（第二接触面、作動面の一つ又は両方）より
摩擦力の小さな材質（樹脂、金属など）で構成する。こ
の場合、組合わせる材質の相対的な関係で決められる。 接触する面の最大外径に差を付ける。あるいは最大外
径が同一ならば面積に変化を付ける。 同じ材質で異なる表面加工を施して、一方を滑かに、
他方を粗く加工する。 表面に夫々滑かな部分と粗い部分とを設け、一方の表
面を粗い部分を多く、他方を粗い部分を少なく形成す
る。 〜の組み合わせ。One (one or both of the control surface and the first contact surface) is made of a material (resin, metal, or the like) having a smaller frictional force than the other (the second contact surface or one or both of the operation surfaces). In this case, it is determined by the relative relationship of the materials to be combined. Make a difference in the maximum outer diameter of the contact surface. Alternatively, if the maximum outer diameters are the same, the area is changed. Applying different surface processing with the same material, one side smoothly,
The other is roughly processed. A smooth portion and a rough portion are provided on the surface, and one surface is formed with many rough portions and the other is formed with few rough portions. A combination of
【００１３】また、前記における摩擦力の大小は、「制
御面と第一接触面とに生じる摩擦力」を１００とした場
合、「第二接触面と作動面とに生じる摩擦力」は、１０
１〜２００程度が望ましいが、微細でも差が生じればよ
いで、モーターのトルク、各面の押圧力等により適宜設
定できる。The magnitude of the frictional force in the above is defined as 100 when the "frictional force generated between the control surface and the first contact surface" is 100, and the "frictional force generated between the second contact surface and the operation surface" is 10
It is desirable to be about 1 to 200, but it is only necessary to make a difference even if it is fine.
【００１４】[0014]
【実施の態様】この発明の切替バルブは、バルブ本体１
と作動手段１４との間に切替手段４を介装してなる。DESCRIPTION OF THE PREFERRED EMBODIMENTS A switching valve according to the present invention has a valve body 1.
The switching means 4 is interposed between the control means and the operating means 14.
【００１５】バルブ本体１は、流体路の開口７、８、９
が臨んだ制御面２を有する。The valve body 1 is provided with openings 7, 8, 9 of the fluid passages.
Has a control surface 2 facing.
【００１６】切替手段４は、軸方向一面に、制御面２に
接触する第一接触面５を有すると共に、開口７、８、９
の２つと連通するバイパス通路３を有する。また、軸方
向他面に第二接触面１３を形成してある。切替手段４を
回転させて、開口７、８、９の経路を切り換える。The switching means 4 has a first contact surface 5 in contact with the control surface 2 on one surface in the axial direction, and has openings 7, 8, 9
And a bypass passage 3 communicating with the two. A second contact surface 13 is formed on the other surface in the axial direction. By rotating the switching means 4, the paths of the openings 7, 8 and 9 are switched.
【００１７】また、作動手段１４は、軸方向一側に、切
替手段４の第二接触面１３に密着する作動面１５を有
し、軸方向他側を、モーターに連結してある（図２
（ａ）（ｂ））。The operating means 14 has an operating surface 15 on one side in the axial direction, which is in close contact with the second contact surface 13 of the switching means 4, and the other side in the axial direction is connected to the motor (FIG. 2).
(A) (b)).
【００１８】第一接触面２と制御面５とに生じる摩擦力
を、第二接触面１３と作動面１５との摩擦力より小さく
形成してある。The frictional force generated between the first contact surface 2 and the control surface 5 is formed smaller than the frictional force between the second contact surface 13 and the operating surface 15.
【００１９】[0019]
【作用】制御面と第一接触面との摩擦力を、第二接触面
と作動面との摩擦力より小さく形成したので、作動手段
の回転開始により、制御面と第一接触面とが滑り、常に
作動手段と切替手段とが一体に回転し始め、流体路を制
御できる。また、切替手段がバルブ本体のストッパーに
衝突した際は、切替手段は止まり、第二接触面と作動面
とが滑り、切替手段と作動手段とが切れ、作動手段はオ
ーバーランして回転を続ける。[Function] Since the frictional force between the control surface and the first contact surface is smaller than the frictional force between the second contact surface and the operation surface, the rotation of the operation means causes the control surface and the first contact surface to slide. The operating means and the switching means always start to rotate integrally, and the fluid path can be controlled. When the switching unit collides with the stopper of the valve body, the switching unit stops, the second contact surface and the operating surface slide, the switching unit and the operating unit are cut off, and the operating unit overruns and continues to rotate. .
【００２０】[0020]
【実施例】図２〜７に基づきこの考案の実施例を説明す
る。An embodiment of the present invention will be described with reference to FIGS.
【００２１】６本の液路が貫通したバルブ本体（ステン
レス製）１の軸方向一側（内面）に該バルブ本体１の制
御面２を構成し（図７（ａ−１））、該制御面２に前記
６本の液路の一側の開口（図示していない）が臨んでい
る。また、前記バルブ本体１の軸方向他側（外面）に、
環状の傾斜面１９が形成され、該傾斜面１９に前記６本
の液路の他側の開口が臨み、液路の接続口２０、２０を
構成している（図４）。A control surface 2 of the valve main body 1 is formed on one axial side (inner surface) of the valve main body (made of stainless steel) 1 through which six liquid passages penetrate (FIG. 7A-1). Openings (not shown) on one side of the six liquid paths face the surface 2. Also, on the other axial side (outer surface) of the valve body 1,
An annular inclined surface 19 is formed, and the opening on the other side of the six liquid paths faces the inclined surface 19, and constitutes connection ports 20, 20 of the liquid paths (FIG. 4).
【００２２】また、切替円盤（切替手段）４の軸方向一
側に、前記制御面２と対向する第一接触面５（外径Ｄ1
のリング状。図７（ａ−２）のハッチング部分）と、前
記液路を切り替える為のバイパス通路（図示していな
い）とが形成されている。また、前記切替円盤４の軸方
向他側に前記第一接触面５と並行に第二接触面１３が形
成されている（図７（ｂ−１））。また、前記切替円盤
４の外側面にストッパー１０が突出している（図３）。On one axial side of the switching disk (switching means) 4, a first contact surface 5 (outside diameter D 1) facing the control surface 2 is provided.
Ring shape. A hatched portion in FIG. 7A-2) and a bypass passage (not shown) for switching the liquid passage are formed. A second contact surface 13 is formed on the other axial side of the switching disk 4 in parallel with the first contact surface 5 (FIG. 7 (b-1)). A stopper 10 protrudes from the outer surface of the switching disk 4 (FIG. 3).
【００２３】また、モーターと連結する作動円柱（作動
手段）１４の軸方向一側に、前記切替円盤４の第二接触
面１３と対向する作動面１５が形成されている（外径Ｄ
2 のリング状。図７（ｂ−２）のハッチング部分）。ま
た、軸方向他側にモーターからの回転を受ける連結穴２
２が形成されている（図３）。An operating surface 15 facing the second contact surface 13 of the switching disk 4 is formed on one axial side of the operating column (operating means) 14 connected to the motor.
2 ring shape. (A hatched part in FIG. 7B-2). A connection hole 2 is provided on the other side in the axial direction for receiving rotation from the motor.
2 are formed (FIG. 3).
【００２４】本体外筒（バルブ本体）１７内に、前記作
動円柱１４、切替円盤４を、作動面１５と第二接触面１
３とを密着させて収容し、切替円盤４のストッパー１０
を本体外筒１７の案内切欠１１内に臨ませる。前記本体
外筒１７に本体外筒（バルブ本体）１８を載置し、続い
て該本体外筒１８にバルブ本体１を、前記制御面２と第
一接触面５とを密着させて載置する。ボルト３０、３０
で、本体外筒１７、１８、バルブ本体１とを固定する
（図４）。前記本体外筒１７で、本体外筒１８の他側の
開口から作動円筒１４の連結穴２２部分が突出してい
る。The operating cylinder 14 and the switching disk 4 are placed in an outer cylinder 17 of the main body (valve main body).
3 is housed in close contact with the stopper 10 of the switching disk 4.
To the inside of the guide notch 11 of the outer cylinder 17 of the main body. The main body outer cylinder (valve main body) 18 is mounted on the main body outer cylinder 17, and then the valve main body 1 is mounted on the main body outer cylinder 18 by bringing the control surface 2 and the first contact surface 5 into close contact with each other. . Bolts 30, 30
Then, the main body outer cylinders 17, 18 and the valve main body 1 are fixed (FIG. 4). In the main body outer cylinder 17, a connection hole 22 portion of the working cylinder 14 protrudes from an opening on the other side of the main body outer cylinder 18.
【００２５】また、前記本体外筒１７内には、ばね２３
が介装され、作動円柱１４を切替円盤４、バルブ本体１
側に押圧している。また、切替円盤４と本体外筒１８と
の間にパッキン２４が介装されている（図５）。A spring 23 is provided in the main body outer cylinder 17.
The working cylinder 14 is switched and the disc 4 and the valve body 1 are interposed.
Is pressed to the side. A packing 24 is interposed between the switching disk 4 and the main body outer cylinder 18 (FIG. 5).
【００２６】前記において、接触面２はステンレスで形
成されている。また、前記切替円盤４は軸受け材用の各
種樹脂材（例えば、テフロン系樹脂、ＰＥＥＫ樹脂な
ど）により一体形成されている。また、前記作動円柱１
４はステンレスからなり、作動面１５側に、軸受け材用
の各種樹脂材からなる作動部１６が埋め込まれ、該作動
部１６にリング状の作動面１５が形成されいる。In the above, the contact surface 2 is formed of stainless steel. The switching disk 4 is integrally formed of various resin materials for the bearing material (for example, Teflon resin, PEEK resin, etc.). The working cylinder 1
Reference numeral 4 denotes a stainless steel, and an operating portion 16 made of various resin materials for a bearing material is embedded in the operating surface 15 side, and a ring-shaped operating surface 15 is formed on the operating portion 16.
【００２７】以上のようにして、この発明の切り替えバ
ルブ２５を構成する（図３、５、図７（ａ−１）（ａ−
２））。ここで、バルブ本体の流路の開口は制御面２
に、バイパス回路は、制御面２に形成されるが、従来と
同様であるので、記載を省略してある。As described above, the switching valve 25 of the present invention is constituted (FIGS. 3, 5 and 7 (a-1) (a-
2)). Here, the opening of the flow path of the valve body is the control surface 2
Meanwhile, the bypass circuit is formed on the control surface 2, but is omitted because it is the same as the conventional one.
【００２８】前記において、制御面２と第一接触面５の
接触は、ステンレスと外径Ｄ1 の狭い樹脂材との接触で
ある（図７（ａ−１）（ａ−２））。また、第二接触面
１３と作動面１５との接触は樹脂材と外径Ｄ2 （＞
Ｄ1 ）の樹脂材との接触である（図７（ｂ−１）（ｂ−
２））。従って、摩擦力は、（制御面２と第一接触面
５）＜（第二接触面１３と作動面１５）となる。[0028] In the above, the contact of the control surface 2 to the first contact surface 5 is in contact with the narrow resin material of stainless steel and an outer diameter D 1 (FIG. 7 (a-1) (a -2)). Further, the contact between the second contact surface 13 and the operating surface 15 is made by the resin material and the outer diameter D 2 (>
D 1) which is in contact with the resin material (FIG. 7 (b-1) (b-
2)). Therefore, the frictional force becomes (control surface 2 and first contact surface 5) <(second contact surface 13 and operating surface 15).
【００２９】次に、この切替バルブ２８の使用について
説明する。Next, the use of the switching valve 28 will be described.
【００３０】切替バルブ２８に、ギアボックス付きのモ
ーター２１を取付け、モーターの軸２２を連結穴１６に
接続する。また、各機器（図示していない）の制御すべ
き液路を夫々接続口２０、２０に接続して使用する。A motor 21 with a gear box is attached to the switching valve 28, and the shaft 22 of the motor is connected to the connection hole 16. In addition, a liquid path to be controlled by each device (not shown) is connected to the connection ports 20 and 20, respectively.
【００３１】第一位置ではストッパー１０は案内切欠１
１の縁１１ｂに当接し（図６（ａ））、第一位置から、
第二位置に流路を切り替える際には、モーター２１を回
転させ、作動円柱１４を回転させる。第二接触面１３と
作動面１５との摩擦力が大きいので、制御面２と第一接
触面５とが滑り、作動円柱１４は、切替円盤４と共に回
転して、案内切欠１１の縁１１ａがストッパー１０に当
接する位置で、切替バルブ２８は切り替わる（図６
（ｂ））。また、案内切欠１１の縁１１ａがストッパー
１１に当接すると同時に、第二接触面１３と作動面１５
との摩擦力より大きなトルクにより、第二接触面１３と
作動面１５とが滑り、作動円柱１４は、切替円盤４と分
離して、作動円柱１４のみ回転を続ける。In the first position, the stopper 10 has the guide notch 1
1 (FIG. 6A), and from the first position,
When switching the flow path to the second position, the motor 21 is rotated and the working cylinder 14 is rotated. Since the frictional force between the second contact surface 13 and the operating surface 15 is large, the control surface 2 and the first contact surface 5 slide, and the operating cylinder 14 rotates together with the switching disk 4 so that the edge 11a of the guide notch 11 The switching valve 28 switches at a position where it comes into contact with the stopper 10 (FIG. 6).
(B)). At the same time when the edge 11a of the guide notch 11 contacts the stopper 11, the second contact surface 13 and the operating surface 15
The second contact surface 13 and the operating surface 15 slide due to a torque larger than the frictional force between the operating disk 15 and the switching cylinder 4, and the operating cylinder 14 continues to rotate.
【００３２】逆に、第二位置から第一位置への切替は、
モーター２１を逆回転させることにより同様に作動させ
る。Conversely, switching from the second position to the first position
The same operation is performed by rotating the motor 21 in the reverse direction.
【００３３】従って、作動円柱１４の回転速度で液路の
切り替えができると共に、ストッパー１０により、切替
精度を高くできる。更に、ストッパー１０と案内切欠１
１の縁１１ｂ、１１ａとの衝突による衝撃は大幅に緩和
される。Therefore, the liquid path can be switched by the rotation speed of the working cylinder 14, and the switching accuracy can be increased by the stopper 10. Further, the stopper 10 and the guide notch 1
The impact caused by the collision with the first edges 11b and 11a is greatly reduced.
【００３４】前記実施例において、切替円盤４にストッ
パー１０を設け、バルブ本体１に対応する案内切欠１１
を設けたが、バルブ本体１にストッパー１０を設け、切
替円盤４に対応する切欠１１を設けることもできる（図
示していない）。In the above embodiment, the switching disk 4 is provided with the stopper 10 and the guide notch 11 corresponding to the valve body 1 is provided.
However, it is also possible to provide a stopper 10 on the valve body 1 and a notch 11 corresponding to the switching disk 4 (not shown).
【００３５】[0035]
【発明の効果】従来の切替バルブの切替位置精度を保っ
たまま、切り替え速度を大幅に早めることができると共
に、複雑な位置検出機構を省略できるできるので、小形
で安価な自動制御による切り替えバルブを製作できる効
果がある。また、切り替え速度の向上により、流体の切
り替え時に生じる一時的なバルブ内の圧力上昇などの影
響を大幅に緩和することができる効果がある。The switching speed can be greatly increased while maintaining the switching position accuracy of the conventional switching valve, and a complicated position detecting mechanism can be omitted. There is an effect that can be produced. Further, by improving the switching speed, there is an effect that the influence such as a temporary pressure increase in the valve that occurs at the time of switching the fluid can be greatly reduced.
【図１】従来の切り替えバルブの概念のみを簡略した図
で、（ａ）は斜視図、（ｂ）は組立図、（ｃ）は位置ａ
の通路を示す平面図、（ｄ）は同じく位置ｂの通路を示
す平面図である。FIG. 1 is a simplified view of only the concept of a conventional switching valve, where (a) is a perspective view, (b) is an assembly view, and (c) is a position a.
And (d) is a plan view showing the passage at the position b.
【図２】この発明の切り替えバルブの概念のみを簡略し
た図で、（ａ）は斜視図、（ｂ）は組立図、（ｃ）は位
置ａの通路を示す平面図、（ｄ）は同じく位置ｂの通路
を示す平面図である。FIGS. 2A and 2B are diagrams simply illustrating the concept of the switching valve of the present invention, wherein FIG. 2A is a perspective view, FIG. 2B is an assembly view, FIG. 2C is a plan view showing a passage at a position a, and FIG. It is a top view showing a passage of a position b.
【図３】この発明の実施例の各部材の構成を示す縦断面
図である。FIG. 3 is a longitudinal sectional view showing a configuration of each member of the embodiment of the present invention.
【図４】同じく平面図である。FIG. 4 is a plan view of the same.
【図５】図３のＡ−Ａ線における断面図である。FIG. 5 is a sectional view taken along line AA of FIG. 3;
【図６】図５のＢ−Ｂ線における断面図で、（ａ）は第
一位置、（ｂ）は第二位置を夫々表す。6A and 6B are cross-sectional views taken along the line BB in FIG. 5, wherein FIG. 6A shows a first position and FIG. 6B shows a second position.
【図７】（ａ−１）は制御面、（ａ−２）は第一接触
面、（ｂ−１）は第二接触面、（ｂ−２）は作動面の夫
々正面図である。7A is a front view of a control surface, FIG. 7A is a front view of a first contact surface, FIG. 7B is a front view of a second contact surface, and FIG.
１ バルブ本体 ２ 制御面 ３ バイパス通路 ４ 切替円盤（切替手段） ５ 第一接触面 ７〜９ 液路の開口 １０ ストッパー １１ 案内切欠 １１ａ、１１ｂ 縁 １３ 第二接触面 １４ 作動円柱（作動手段） １５ 作動面 １７ 本体外筒（バルブ本体） １８ 本体外筒（バルブ本体） ２５ 切替バルブ ２７ モーター DESCRIPTION OF SYMBOLS 1 Valve main body 2 Control surface 3 Bypass passage 4 Switching disk (switching means) 5 First contact surface 7-9 Opening of liquid passage 10 Stopper 11 Guide notch 11a, 11b Edge 13 Second contact surface 14 Operating cylinder (operating means) 15 Operating surface 17 Body outer cylinder (valve body) 18 Body outer cylinder (valve body) 25 Switching valve 27 Motor
Claims (3)
が臨んだ制御面を有するバルブ本体に、該制御面に接触
する第一接触面を有すると共に、前記開口の一つ又は複
数と連通するバイパス通路を有する切替手段を連結し
て、該切り替え手段を回転させて、経路を切り換えるバ
ルブにおいて、前記切り換え手段の他面に第二接触面を
形成し、前記第２接触面に、モーターに連結した作動手
段の作動面を密着してなり、前記第一接触面と制御面と
の摩擦力を、前記第二接触面と作動面との摩擦力より小
さく形成したことを特徴とする切替バルブ。1. A valve body having a control surface facing an opening of a plurality of fluid passages for an inlet or an outlet, having a first contact surface in contact with the control surface, and one or more of the openings. A switching means having a bypass passage communicating with the switching means, and rotating the switching means to form a second contact surface on the other surface of the switching means in the valve for switching the path, The operating surface of the operating means connected to the motor is brought into close contact, and the frictional force between the first contact surface and the control surface is formed smaller than the frictional force between the second contact surface and the operating surface. Switching valve.
接触面と作動面との組合わせ、を夫々異なった材質で形
成し、その組合わせの相違により摩擦力の差を生じさせ
る構成としたことを特徴とする請求項１記載の切替バル
ブ。2. A combination of the first contact surface and the control surface and a combination of the second contact surface and the operation surface are formed of different materials, respectively, and a difference in friction force is generated due to the difference in the combination. The switching valve according to claim 1, wherein the switching valve is configured to be operated.
二接触面と作動面との接触する面、を夫々異なった外径
による構成とし、その外径の相違により摩擦力の差を生
じさせる構成としたことを特徴とする請求項１記載の切
替バルブ。3. The contact surface between the first contact surface and the control surface and the contact surface between the second contact surface and the operation surface are configured to have different outer diameters, respectively. 2. The switching valve according to claim 1, wherein a difference is generated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32116997A JPH11153238A (en) | 1997-11-21 | 1997-11-21 | Switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32116997A JPH11153238A (en) | 1997-11-21 | 1997-11-21 | Switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11153238A true JPH11153238A (en) | 1999-06-08 |
Family
ID=18129574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32116997A Pending JPH11153238A (en) | 1997-11-21 | 1997-11-21 | Switching valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11153238A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009201319A (en) * | 2008-02-25 | 2009-09-03 | Canon Inc | Oscillatory-wave actuating apparatus |
| CN102720670A (en) * | 2012-07-10 | 2012-10-10 | 三一重工股份有限公司 | Hydraulic valve, concrete pumping system and concrete pump |
| WO2021128928A1 (en) * | 2019-12-25 | 2021-07-01 | 南京润泽流体控制设备有限公司 | Fluid non-crossover switching valve |
-
1997
- 1997-11-21 JP JP32116997A patent/JPH11153238A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009201319A (en) * | 2008-02-25 | 2009-09-03 | Canon Inc | Oscillatory-wave actuating apparatus |
| CN102720670A (en) * | 2012-07-10 | 2012-10-10 | 三一重工股份有限公司 | Hydraulic valve, concrete pumping system and concrete pump |
| WO2021128928A1 (en) * | 2019-12-25 | 2021-07-01 | 南京润泽流体控制设备有限公司 | Fluid non-crossover switching valve |
| JP2022519138A (en) * | 2019-12-25 | 2022-03-22 | 南京潤澤流体控制設備有限公司 | Switching valve that can prevent fluid crossing |
| US11371625B2 (en) | 2019-12-25 | 2022-06-28 | Nanjing Runze Fluid Control Equipment Co., Ltd | Fluid cross-free switching valve |
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