JPS6314234B2 - - Google Patents
Info
- Publication number
- JPS6314234B2 JPS6314234B2 JP55173416A JP17341680A JPS6314234B2 JP S6314234 B2 JPS6314234 B2 JP S6314234B2 JP 55173416 A JP55173416 A JP 55173416A JP 17341680 A JP17341680 A JP 17341680A JP S6314234 B2 JPS6314234 B2 JP S6314234B2
- Authority
- JP
- Japan
- Prior art keywords
- flow path
- flow
- push nut
- diaphragm
- speed control
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 229920003051 synthetic elastomer Polymers 0.000 description 3
- 239000005061 synthetic rubber Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Details Of Valves (AREA)
Description
【発明の詳細な説明】
本発明は速度制御弁に関し、一層詳細には流体
の流路を一体化でき、小型化が図れるとともに精
度よく流体流量を制御できる速度制御弁に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speed control valve, and more particularly to a speed control valve that can integrate a fluid flow path, be downsized, and control the fluid flow rate with high precision.
各種空圧機器等のように流体圧によつてアクチ
ユエータを駆動する場合に、アクチユエータの作
動速度等を適宜に設定するために駆動時における
送り込むべき流体の流量を制御する必要があるの
みならず、流体圧解放後はアクチユエータを迅速
に待機位置まで復帰させるべく、送り込まれた流
体を一時に排出してやる必要がある。 When an actuator is driven by fluid pressure, such as in various pneumatic devices, it is not only necessary to control the flow rate of the fluid to be sent during driving in order to appropriately set the actuator's operating speed, etc. After the fluid pressure is released, it is necessary to discharge the pumped fluid all at once in order to quickly return the actuator to the standby position.
上記のような制御流と排出流を得るために従来
においては第７図に示すような速度制御弁５０が
一般的に使用されている。 In order to obtain the above-mentioned control flow and discharge flow, a speed control valve 50 as shown in FIG. 7 has conventionally been generally used.
すなわち弁本体５１に、流路５２とは垂直方向
からニードル５３を微調節自在に突出入するよう
に設け、流路５２内にはニードル５３先端が突入
しうる凹部を設けて、該凹部とニードル５３との
間隙を調節することによつて制御流Ａを得るよう
にしている。また一方自由な排出流Ｂを得るため
に、排出流Ｂの排出側流路から分岐路５４を形成
し、該分岐路５４をニードル５３挿通孔５５に連
絡し、挿通孔５５を排出流Ｂの流入路側に連絡し
て迂回路を形成し、ニードル５３外周には、外端
縁が挿通孔５５内壁に当接して制御流Ａは通さな
いが排出流Ｂは自由に通過させるダイヤフラム弁
５６を固着して設けている。 That is, a needle 53 is provided in the valve body 51 so as to be able to protrude in and out in a direction perpendicular to the flow path 52 in a finely adjustable manner. The controlled flow A is obtained by adjusting the gap between the air flow and the air flow 53. On the other hand, in order to obtain a free discharge flow B, a branch passage 54 is formed from the discharge side flow passage of the discharge flow B, and the branch passage 54 is connected to the insertion hole 55 of the needle 53. A diaphragm valve 56 is fixed to the outer periphery of the needle 53, which connects to the inflow path side to form a detour, and whose outer edge abuts the inner wall of the insertion hole 55 to prevent the control flow A from passing through but to allow the discharge flow B to freely pass through. It is set up as follows.
上記のように従来の速度制御弁５０においては
排出流Ｂのための迂回路を設けているため弁本体
５１が大型、複雑化する難点がある。このような
速度制御弁５０は流路を短くするため、アクチユ
エータに近接してあるいは場合によつてはアクチ
ユエータ上に設置される場合が多く、スペース効
率上小型化の要請が強い。特に昨今のロボツト装
置においては、ロボツトの複雑な動きをすべて作
動スピードの速い空気圧によつて制御する場合も
多く、このような場合には多数の速度制御弁が使
用されることからその一層の小型化が望まれる。 As described above, the conventional speed control valve 50 has a disadvantage that the valve body 51 is large and complicated because a detour is provided for the discharge flow B. In order to shorten the flow path, such a speed control valve 50 is often installed close to the actuator or, in some cases, on the actuator, and there is a strong demand for miniaturization in terms of space efficiency. Particularly in modern robotic equipment, the complex movements of the robot are often all controlled by pneumatic pressure that operates at high speeds, and in such cases, many speed control valves are used, making them even more compact. It is hoped that the
本発明は上記難点に鑑みてなされ、その目的と
するところは流路を一本化できて小型化が図れる
とともに精度良く流体流量を制御できる速度制御
弁を提供するにあり、その特徴とするところは、
適宜な流体が流通する流路内で一方向には自由流
とし、逆方向には制御流として流通させる速度制
御弁において、弁本体に設けた前記流路内に、外
方に放射状に支杆が延出されるとともに中央に透
孔が形成されたプツシユナツトを、流路を横切る
ように支杆先端で内接して固定し、前記流路は前
記プツシユナツト固定位置近傍で曲折して設け、
前記弁本体外部から前記流路の曲折部を経由して
流路内に先端が貫入するとともに、弁本体外の突
出部を操作することにより該先端が前記プツシユ
ナツト中央に設けた透孔内に突入量調節自在にな
されたニードルを設けたところにある。 The present invention has been made in view of the above-mentioned difficulties, and its purpose is to provide a speed control valve that can unify the flow path, achieve miniaturization, and control the fluid flow rate with high precision. teeth,
In a speed control valve that allows a suitable fluid to flow in a flow path in one direction as a free flow and in the opposite direction as a controlled flow, a supporting rod is provided in the flow path provided in the valve body radially outward. A push nut having a through hole formed in the center thereof is extended and fixed by being inscribed at the tip of a support rod so as to cross a flow path, and the flow path is provided by being bent near the position where the push nut is fixed,
The tip penetrates into the flow path from the outside of the valve body via the bent part of the flow path, and the tip enters the through hole provided in the center of the push nut by operating a protrusion outside the valve body. It is equipped with a needle that allows the amount to be adjusted freely.
以下本発明の実施例につき図面を参照して詳細
に説明する。 Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図において、縦長ブロツク形状の本体１０
上面から垂直下方にネジ孔１２およびネジ孔１２
に続き断面が円形の流路１４を形成し、流路１４
下面を下方に向つて３段階に拡径して上から段差
部a1，a2，a3を形成する。次に流路１４の段差部
a2に当接してプツシユナツト１６を配設する。プ
ツシユナツト１６はゆるやかな傘状に６本の支杆
１８を延出した、バネ性を有するステンレス製薄
板によつて形成される。この、傘状に開いた状態
のプツシユナツト１６はプツシユナツト１６の傘
の径よりもわずかに小さな内径を有する流路１４
の内面に弾性的に圧接する。プツシユナツト１６
の中央に透孔２０を穿設し、プツシユナツト１６
の該透孔２０および支杆１８先端を除いてプツシ
ユナツト１６と一体をなし、やはり下向にきつい
角度の傘を開くコーン形状の合成ゴム製ダイヤフ
ラム２２を設ける。該ダイヤフラム２２の下端外
周縁は流路１４の下部内面に内接する。下部にニ
ードル２４を有する調節ネジ２６をプツシユナツ
ト１６の透孔２０に出入自在に本体１０のネジ孔
１２に螺挿する。該調節ネジ２６には通常の如く
ロツクナツト２８およびＯリング３０を巻装す
る。流路１４の上部右側面となる本体に流通路３
２を穿設してパイプジヨイント３４を連繋する。 In FIG. 1, a vertically long block-shaped main body 10
Screw hole 12 and screw hole 12 vertically downward from the top surface
Subsequently, a flow path 14 having a circular cross section is formed, and the flow path 14
The diameter of the lower surface is expanded downward in three steps to form stepped portions a 1 , a 2 , and a 3 from above. Next, the stepped portion of the flow path 14
A push nut 16 is disposed in contact with a2 . The push nut 16 is formed of a thin stainless steel plate having spring properties and has six support rods 18 extending in a gentle umbrella shape. This push nut 16 in an open state like an umbrella has a flow path 14 having an inner diameter slightly smaller than the diameter of the umbrella of the push nut 16.
elastically presses against the inner surface of the Pushnut 16
A through hole 20 is bored in the center of the push nut 16.
A cone-shaped synthetic rubber diaphragm 22 is provided, which is integral with the push nut 16 except for the through hole 20 and the tip of the support rod 18, and also opens an umbrella downward at a steep angle. The outer peripheral edge of the lower end of the diaphragm 22 is inscribed in the lower inner surface of the flow path 14 . An adjusting screw 26 having a needle 24 at its lower part is screwed into the threaded hole 12 of the main body 10 so as to be able to freely go in and out of the through hole 20 of the push nut 16. A lock nut 28 and an O-ring 30 are wound around the adjustment screw 26 in the usual manner. The flow path 3 is located on the main body, which is the upper right side of the flow path 14.
2 and connect the pipe joint 34.
空気流が第１図に示す矢印のごとく流路１４か
ら流通路３２の方向に流れるときはダイヤフラム
２２のコーンが開いて流路１４の内壁面と密着
し、流体はニードル２４と透孔２０の間隙を制御
流となつて流れ、パイプジヨイント３４から流出
する。 When the airflow flows from the flow path 14 to the flow path 32 as shown by the arrow shown in FIG. It flows in a controlled flow through the gap and exits from the pipe joint 34.
一方空気流が第２図に示すように流通路３２か
ら流路１４に流れるときはダイヤフラム２２がす
ぼまつてダイヤフラム２２の外周縁と流路１４下
部内壁との間に隙間が形成され、空気流は自由流
となつて流路１４から流出する。 On the other hand, when air flows from the flow path 32 to the flow path 14 as shown in FIG. The flow exits the channel 14 as a free stream.
段差部a3下方の流路１４内径をプツシユナツト
１６の外径よりも若干大径にすることによつて組
立時に流路１４内面にプツシユナツトの支杆が擦
過して形成される傷が残らず、ダイヤフラム２２
と流路１４との気密を保持することができる。 By making the inner diameter of the channel 14 below the step part a3 slightly larger than the outer diameter of the push nut 16, there will be no scratches caused by the push nut's support rod rubbing against the inner surface of the channel 14 during assembly. diaphragm 22
Airtightness between the flow path 14 and the flow path 14 can be maintained.
他の実施例を挙げると、第３図に示すごとく、
プツシユナツト１６を傘状に開くとともにプツシ
ユナツト１６と一体に形成されるダイヤフラム２
２のコーンを上開きのコン形状としてなる速度制
御弁を構成することができるほか、プツシユナツ
ト１６をネジ止め形状とするときは平板状のプツ
シユナツトを使用することもできる。 To give another example, as shown in FIG.
A diaphragm 2 that opens the push nut 16 in an umbrella shape and is formed integrally with the push nut 16.
In addition to constructing a speed control valve in which the cone of No. 2 is in the shape of a cone that opens upward, a flat push nut can also be used when the push nut 16 has a screw-fastening shape.
本体内に形成される流路が一系統のみであるた
め、単に流路がＬ字状の速度制御弁のみならず、
Ｕ字状、Ｓ字状、段差状等となる流路を形成する
ことができ、流路の方向を任意に変更した速度制
御弁を得ることができる。 Since there is only one flow path formed in the main body, it is not only a speed control valve with an L-shaped flow path.
A flow path having a U-shape, S-shape, step shape, etc. can be formed, and a speed control valve in which the direction of the flow path can be arbitrarily changed can be obtained.
なお、プツシユナツト１６にダイヤフラム２２
を一体に装着するには、合成ゴム、例えばNBR
をプツシユナツトの切欠をまたいで金型一体成形
するべく、金型にプツシユナツトを挿入して注入
型で合成ゴムをモールドすればよい（第６図）。 In addition, a diaphragm 22 is attached to the push nut 16.
synthetic rubber, e.g. NBR.
In order to integrally mold the push nut with a mold across the notch of the push nut, the push nut is inserted into the mold and synthetic rubber is molded with an injection mold (Fig. 6).
このように本発明によるときは、速度制御弁内
に従来のように分岐路を有する複雑な流路を形成
する必要がないので、本体の製造がきわめて容易
となり、本体の小型化が達成でき、これを組み込
む空気圧機器等のスペース効率上きわめて有効で
ある。 As described above, according to the present invention, there is no need to form a complicated flow path with branching paths in the speed control valve as in the conventional case, so manufacturing of the main body is extremely easy and miniaturization of the main body can be achieved. This is extremely effective in terms of space efficiency for pneumatic equipment, etc. into which it is incorporated.
また、プツシユナツトに弾力性ダイヤフラムを
組合せて設けることにより、ダイヤフラムがプツ
シユナツトによつて支持されるからダイヤフラム
の妄動が防止できる。また、これにより、ダイヤ
フラムのめくれ等の変動が防止され、絞り量が適
正に制御されるから、制御流を精度よく制御する
ことができる。また、プツシユナツトは外方に放
射状に支杆が延出されて成るから、流体を流路内
に流通させとともに、流路内にプツシユナツトが
適正に嵌挿・支持されるという効果を有する。 Furthermore, by providing the push nut in combination with the elastic diaphragm, the diaphragm is supported by the push nut, thereby preventing the diaphragm from moving inadvertently. Further, this prevents fluctuations such as turning of the diaphragm and appropriately controls the amount of throttling, so that the control flow can be controlled with high precision. Further, since the push nut is formed by a support rod extending radially outward, the push nut is effectively inserted and supported in the flow path while allowing the fluid to flow through the flow path.
さらに、ニードル先端がプツシユナツトの中央
に設けた透孔内を突出入するように構成したこと
により、本体の流路にプツシユナツトを嵌挿する
ことおよび本体に調節ネジを螺挿することにより
速度制御弁を構成することができ、速度制御弁の
構造を簡易にできて、故障を少なくすることがで
きると共に、速度制御弁の組立を容易にし、製造
コストを引下げることができ、製品のバラツキを
少なくすることができる等の著効を奏する。 Furthermore, by configuring the needle tip to protrude into and out of the through hole provided in the center of the push nut, the speed control valve can be adjusted by inserting the push nut into the channel of the main body and by screwing the adjustment screw into the main body. The structure of the speed control valve can be simplified and failures can be reduced, the speed control valve can be easily assembled, manufacturing costs can be reduced, and product variations can be reduced. It has great effects, such as being able to
以上本発明につき好適な実施例を挙げて種々説
明したが、本発明はこの実施例に限定されるもの
ではなく、発明の精神を逸脱しない範囲内で多く
の改変を施し得るのはもちろんのことである。 Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.
図面は本発明の実施例を示し、第１図は制御流
の、第２図は自由流の流路を示す速度制御弁縦断
面図、第３図は速度制御弁の他の実施例を示す部
分縦断面図、第４図、第５図はプツシユナツトの
平面図および正面縦断面図、第６図はダイヤフラ
ム付プツシユナツトの正面縦断面図である。第７
図は従来の速度制御弁の構造を示す断面図であ
る。
１０……本体、１２……ネジ孔、１４……流
路、１６……プツシユナツト、１８……支杆、２
０……透孔、２２……ダイヤフラム、２４……ニ
ードル、２６……調節ネジ、２８……ロツクナツ
ト、３０……Ｏリング、３２……流通路、３４…
…パイプジヨイント。
The drawings show an embodiment of the present invention, FIG. 1 is a vertical cross-sectional view of the speed control valve showing the controlled flow path, FIG. 2 is a longitudinal sectional view of the speed control valve showing the free flow path, and FIG. 3 shows another embodiment of the speed control valve. 4 and 5 are a plan view and a front longitudinal sectional view of the push nut, and FIG. 6 is a front longitudinal sectional view of the push nut with a diaphragm. 7th
The figure is a sectional view showing the structure of a conventional speed control valve. 10... Body, 12... Screw hole, 14... Channel, 16... Push nut, 18... Support rod, 2
0...Through hole, 22...Diaphragm, 24...Needle, 26...Adjustment screw, 28...Lock nut, 30...O ring, 32...Flow path, 34...
...Pipe joint.
Claims (1)
由流とし、逆方向には制御流として流通させる速
度制御弁において、弁本体に設けた前記流路内
に、外方に放射状に支杆が延出されるとともに中
央に透孔が形成されたプツシユナツトを、流路を
横切るように支杆先端で内接して固定し、前記流
路は前記プツシユナツト固定位置近傍で曲折して
設け、前記弁本体外部から前記流路の曲折部を経
由して流路内に先端が貫入するとともに、弁本体
外の突出部を操作することにより該先端が前記プ
ツシユナツト中央に設けた透孔内に突入量調節自
在になされたニードルを設け、前記プツシユナツ
トにはコーン形状の弾力性ダイヤフラムをその外
周縁が流路内壁に密接するように固定して成り、
流体が一方向に流れるときには流体圧によつて前
記コーン形状のダイヤフラムがすぼまり、ダイヤ
フラム外周縁と流路内壁との間隙から自由流が得
られ、流体が逆方向に流れるときは流体圧によつ
て前記ダイヤフラム外周縁が流路内壁に圧接さ
れ、前記透孔とニードルとの間隙から制御流が得
られることを特徴とする速度制御弁。1. In a speed control valve that allows a suitable fluid to flow in a flow path in one direction as a free flow and in the opposite direction as a controlled flow, the flow path provided in the valve body has a radially supporting structure radially outward. A push nut with an extended rod and a through hole formed in the center is fixed by being inscribed at the tip of the support rod so as to cross a flow path, the flow path is bent near the position where the push nut is fixed, and the valve The tip penetrates into the flow path from the outside of the valve body via the bending part of the flow path, and the amount that the tip penetrates into the through hole provided in the center of the push nut is adjusted by operating the protrusion outside the valve body. A flexible needle is provided, and a cone-shaped elastic diaphragm is fixed to the push nut so that its outer periphery is in close contact with the inner wall of the channel,
When fluid flows in one direction, the cone-shaped diaphragm is compressed by the fluid pressure, and a free flow is obtained from the gap between the outer periphery of the diaphragm and the inner wall of the channel, and when fluid flows in the opposite direction, the fluid pressure A speed control valve characterized in that the outer peripheral edge of the diaphragm is pressed against the inner wall of the flow path, and a controlled flow is obtained from the gap between the through hole and the needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17341680A JPS5797968A (en) | 1980-12-09 | 1980-12-09 | Flow velocity control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17341680A JPS5797968A (en) | 1980-12-09 | 1980-12-09 | Flow velocity control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5797968A JPS5797968A (en) | 1982-06-17 |
| JPS6314234B2 true JPS6314234B2 (en) | 1988-03-30 |
Family
ID=15960029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17341680A Granted JPS5797968A (en) | 1980-12-09 | 1980-12-09 | Flow velocity control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5797968A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4619287A (en) * | 1982-10-06 | 1986-10-28 | Nihon Pisuko Kabushiki Kaisha | Valves proper for valve-type fluid-flow controllers |
| JPS6217478A (en) * | 1985-07-15 | 1987-01-26 | Kooyoo:Kk | Needle valve |
| JPH0619892Y2 (en) * | 1987-09-14 | 1994-05-25 | エスエムシー株式会社 | Speed control device |
| DE3831554C2 (en) * | 1988-09-16 | 1997-06-05 | Rexroth Pneumatik Mannesmann | Throttle check valve |
| JPH0726622Y2 (en) * | 1990-06-26 | 1995-06-14 | 株式会社潤工社 | Speed control valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS489222U (en) * | 1971-06-16 | 1973-02-01 | ||
| JPS4838975U (en) * | 1971-09-07 | 1973-05-15 |
-
1980
- 1980-12-09 JP JP17341680A patent/JPS5797968A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS489222U (en) * | 1971-06-16 | 1973-02-01 | ||
| JPS4838975U (en) * | 1971-09-07 | 1973-05-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5797968A (en) | 1982-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4543985A (en) | Pressure regulator | |
| US5383646A (en) | Diaphragm control valve | |
| US4842013A (en) | Droop compensated direct acting pressure regulator | |
| EP0024670A2 (en) | A self-regulating constant output nozzle for a supply line | |
| CA2183576A1 (en) | Self-closing dispensing valve | |
| US4240606A (en) | Fill valve | |
| IL114001A (en) | Pulsator device and method | |
| US5409042A (en) | Constant-rate flow control valve | |
| JPS6314234B2 (en) | ||
| US6374855B1 (en) | Diaphragm valve | |
| US4283041A (en) | Metering valve | |
| US6637451B2 (en) | Pneumatic pressure regulator assembly | |
| US4782860A (en) | Magnetic flow control valve | |
| US3989060A (en) | Gas pressure regulator | |
| US3372707A (en) | Pressure regulator valve | |
| JPH03383A (en) | Droop compensation regulating valve | |
| US3965934A (en) | Fluid regulating devices | |
| JPH04278152A (en) | Thermostat dilatation valve for refrigerator | |
| US5354530A (en) | Pressure fluid stabilized regulator with leakage orifice and method of forming precise molded orifice units | |
| JP2693043B2 (en) | Diaphragm valve | |
| SU1444722A1 (en) | Pressure controller | |
| JPS6131252Y2 (en) | ||
| KR200220977Y1 (en) | Pesticide sprayer | |
| JP4012306B2 (en) | Pressure flow control device | |
| KR0177368B1 (en) | Control valve unit of pump |