JPS61184616A - Pressure adjusting valve - Google Patents
Pressure adjusting valveInfo
- Publication number
- JPS61184616A JPS61184616A JP2452685A JP2452685A JPS61184616A JP S61184616 A JPS61184616 A JP S61184616A JP 2452685 A JP2452685 A JP 2452685A JP 2452685 A JP2452685 A JP 2452685A JP S61184616 A JPS61184616 A JP S61184616A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- passage
- valve body
- piston
- supply
- 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
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/14—Control of fluid pressure with auxiliary non-electric power
- G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Safety Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は流体圧を制御する圧力調整弁に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a pressure regulating valve for controlling fluid pressure.
（従来の技術）
従来の圧力調整弁は第４図、第５図に示すように、圧力
空気を供給する一次側通路（１）と設定圧空気を供給す
る二次側通路（２１との隔壁に流路（３）が設けられ、
同流路（３）を開閉する弁（４）が二次側通路（２）と
ばね室（５）との間に設けられた膜板（６）によシ支持
されていて、同膜板（６）がばね室（５）に設けられた
圧縮ばね（力により上方へ付勢されている。また前記ば
ね室には、空気抜き（８）が設けられている。(Prior Art) As shown in FIGS. 4 and 5, a conventional pressure regulating valve has a partition wall between a primary passage (1) that supplies pressurized air and a secondary passage (21) that supplies set pressure air. A flow path (3) is provided in the
A valve (4) for opening and closing the flow passage (3) is supported by a membrane plate (6) provided between the secondary passage (2) and the spring chamber (5), and the membrane plate (6) is a compression spring provided in the spring chamber (5) and is urged upward by a force. The spring chamber is also provided with an air vent (8).
圧力空気が一次側通路（１）から流路（３）を経て二次
側通路（２）へ供給され、二次側通路（２）の圧力が設
定圧になると、圧縮ばね（７）のばね力と釣合った位置
で膜板（６）に支持された弁（４）が流路（３）を閉じ
て、圧力空気が二次側通路（２）へ供給されなくなる。Pressure air is supplied from the primary side passage (1) to the secondary side passage (2) via the flow path (3), and when the pressure in the secondary side passage (2) reaches the set pressure, the spring of the compression spring (7) A valve (4) supported on the membrane plate (6) in a position balanced by the force closes the flow path (3) so that no pressurized air is supplied to the secondary channel (2).
また二次側通路（２）の圧力が低下すると、圧縮ばね（
７）のばね力により膜板（６）が押し上げられて、弁（
４）が流路（３）を開き、圧力空気が一次側流路（１）
から二次側通路（２）へ供給される。上記の作動を繰返
して二次側通路（２）の圧力が設定圧に保持される。Also, when the pressure in the secondary passage (2) decreases, the compression spring (
The membrane plate (6) is pushed up by the spring force of 7), and the valve (
4) opens the flow path (3), and pressurized air enters the primary flow path (1).
is supplied to the secondary passageway (2). By repeating the above operations, the pressure in the secondary passageway (2) is maintained at the set pressure.
（発明が解決しようとする問題点）
前記第４図に示す圧力調整弁では、二次側通路（２）の
圧力が設定圧近くになると、弁（４）と流路（３）との
隙間が小さくなって、第５図に示すように、二次側通路
（２）の圧力上昇曲線（９）が設定圧αＱになるまでの
空気補充時間（Ｔ１）が長くなるという問題があった。(Problems to be Solved by the Invention) In the pressure regulating valve shown in FIG. 4, when the pressure in the secondary passage (2) approaches the set pressure, the gap between the valve (4) and the flow passage (3) As a result, as shown in FIG. 5, there is a problem that the air replenishment time (T1) until the pressure increase curve (9) of the secondary side passage (2) reaches the set pressure αQ becomes longer.
（問題点を解決するための手段）
本発明は前記の問題点く対処するもので、圧力流体の一
次側通路と二次側通路とをつなぐバイパス流路を開閉す
る供給弁体と同一次側通路と同二次側通路とをつなぐ流
路に設けられ前記供給弁体をもつピストンと同ピストン
を貫通する通路に設けた絞りと同ピストンを介して前記
供給弁体な閉方向に付勢する同ピストン背後の前記流路
に設けた供給ばねとを有し、前記流路に生じる圧力が前
記供給ばねのばね力よりも強ければ前記ピストン及び前
記供給弁体が開方向へ移動し、前記ピストンの前記流路
に生じる圧力が小さければ前記供給ばねによシ前記ピス
トン及び前記供給弁体が閉方向へ移動する供給部と、前
記ピストン背後の流路と前記二次側通路とをつなぐ流路
の途中を開閉する調圧弁体と前記二次側通路の圧力を受
ける膜板と同膜板の背後に設けて同膜板を介し前記調圧
弁体な開方向へ付勢する調圧ばねとを有し、前記膜板に
作用する前記二次側通路の圧力が同調圧ばねのばね力よ
りも太きければ調圧弁体が閉方向へ移動し、前記膜板に
作用する前記二次側通路の圧力が同調圧ばねのばね力よ
りも小さければ前記調圧弁体が開方向へ移動する調圧部
とを具え、前記供給弁体と前記調圧弁体とを！ム材によ
り構成するとともに、前記ピストン外周の摺動部にビム
製シールを取付けたことを特徴とする圧力調整弁に係わ
り、その目的とする処は、二次側通路の流体圧が設定圧
よシ低下すると低下分の圧力流体を速かに補充できる圧
力調整弁を供する点にある。(Means for Solving the Problems) The present invention addresses the above-mentioned problems, and includes a supply valve body that opens and closes a bypass passage connecting a primary passage and a secondary passage of pressure fluid, and A piston provided in a flow path connecting the passage and the secondary side passage and having the supply valve body, and a restriction provided in a passage penetrating the piston and biasing the supply valve body in the closing direction. a supply spring provided in the flow path behind the piston, and if the pressure generated in the flow path is stronger than the spring force of the supply spring, the piston and the supply valve body move in the opening direction, and the piston If the pressure generated in the flow path is small, the supply spring causes the piston and the supply valve body to move in the closing direction; a flow path connecting the flow path behind the piston and the secondary side passage; A pressure regulating valve body that opens and closes midway through the pressure regulating valve body, a membrane plate that receives pressure from the secondary passage, and a pressure regulating spring that is provided behind the membrane plate and biases the pressure regulating valve body in the opening direction through the membrane plate. If the pressure of the secondary passage acting on the membrane plate is greater than the spring force of the synchronized pressure spring, the pressure regulating valve body moves in the closing direction, and the pressure of the secondary passage acting on the membrane plate is increased. and a pressure regulating part that moves the pressure regulating valve body in an opening direction when the pressure is smaller than the spring force of the synchronizing pressure spring, and the supply valve body and the pressure regulating valve body! The pressure regulating valve is constructed of a rubber material and has a BIM seal attached to the sliding part of the outer periphery of the piston. The object of the present invention is to provide a pressure regulating valve that can quickly replenish the pressure fluid corresponding to the pressure drop when the pressure drops.
（実施例）
次に本発明の圧力調整弁を第１図乃至第３図に示す一実
施例によ〕説明する。まず、供給部（Ａ）について説明
すると、同供給部（Ａ）は次のように構成されている。(Embodiment) Next, the pressure regulating valve of the present invention will be explained based on an embodiment shown in FIGS. 1 to 3. First, the supply section (A) will be explained. The supply section (A) is configured as follows.
即ち、弁支持板αυの右側に上部から円筒室＠＠翰（至
）が設けられ、中央に流路０２を有する弁座０］）が円
筒室（ハ）に嵌入されて、同弁座６υ下面縁が円筒室（
２）と円筒室例との段部に当接している。That is, on the right side of the valve support plate αυ, a cylindrical chamber @＠翰(to) is provided from the top, and the valve seat 0]) having a flow path 02 in the center is fitted into the cylindrical chamber (c), and the valve seat 6υ The lower edge is a cylindrical chamber (
2) and the stepped portion of the cylindrical chamber example.
また同円筒室（５）の入口のめねじにキャップ（至）が
螺合して、同弁座０υに当接しているーまだ同キャップ
□□□が横孔（３３α）を有し、また弁座Ｇυの外周部
の０リング溝に同弁座Ｇυと弁支持板αυとの間を気密
的に保つＯＩＪソング挿入されている。また円筒室（至
）に上下移動可能に嵌入されたピストン（ロ）の中央の
めねじに絞）（至）が螺合し、同ピストン（ロ）の上部
の円管部（至）内にばね０７）が設けられ、同ばね＠に
より！ム製の供給弁体（至）が弁座Ｇυの方向（開方向
）Ｋ付勢され、円管部（至）上端部の内面の溝に止め輪
（至）が挿入され、ピストン（財）及び供給弁体（至）
が開方向に移動したときには（第２図参照）供給弁体（
至）に設けたストツノ（３８→が止め輪ＯＩに当接する
よ５になっている。前記円管部（至）に孔（３６α）が
設けられ、前記ピストン（財）の外周面の溝に円筒室Ｃ
３ＱＫ摺擦する！ム製のシールが挿入されている。また
上記ピストン（財）の背面に当接する供給ばね（４０を
支持するキャップ（ロ）が弁支持板αＤに螺合している
。また円筒室例の下端部に流路０ｚが設けられ、前記円
筒室−の側面に二次側通路θａが設けられ、円筒室例の
側面に一次側通路（ハ）が設けられている。In addition, a cap (to) is screwed into the female thread at the entrance of the cylindrical chamber (5) and is in contact with the valve seat 0υ. An OIJ song is inserted into the O-ring groove on the outer periphery of the valve seat Gυ to maintain airtightness between the valve seat Gυ and the valve support plate αυ. The piston (B), which is fitted into the cylindrical chamber (B) so as to be able to move up and down, is screwed into the female thread at the center of the piston (B). Spring 07) is provided, and by the same spring @! The supply valve body (to) made of aluminum is biased in the direction of the valve seat Gυ (opening direction), and the retaining ring (to) is inserted into the groove on the inner surface of the upper end of the circular pipe part (to), and the piston (to) and supply valve body (to)
When the valve moves in the opening direction (see Figure 2), the supply valve body (
The stop horn (38→) provided at the end (to) is 5 so that it comes into contact with the retaining ring OI.A hole (36α) is provided in the circular pipe part (to), and a hole (36α) is provided in the groove on the outer circumferential surface of the piston. Cylindrical chamber C
3QK rub! A rubber seal is inserted. Further, a cap (B) that supports the supply spring (40) that comes into contact with the back surface of the piston is screwed onto the valve support plate αD. A secondary passage θa is provided on the side surface of the cylindrical chamber, and a primary passage (c) is provided on the side surface of the cylindrical chamber.
次に調圧部（Ｂ） Ｋついて説明する。同調圧部（Ｂ）
は次のように構成されている。即ち、弁支持板αυの左
側上部に、入口にめねじを有す円筒室ｒ１′３が設けら
れ、左側下部に、入口にめねじを有する円筒室αＪが上
記円筒室（１２１と同芯に穿設され、円筒室α涯３が丸
孔α滲により連通し、同丸孔α々に弁座α勺が嵌入され
ておシ、同弁座ａωの流路（１５α）の一部に案内され
て上下動可能な調圧弁体鱈の中央７ランジ部下面にゴム
製シート（１６α）が取付られている。また同調圧弁体
αｅは、円筒室α２上部のめねじに螺合するキャップα
ηの丸孔にも案内されている。また同キャップαηと調
圧弁体Ｑ６）との間にばねα〜が介装されている。また
円筒室（１３に弾性膜板（１９が押え金■を介してシリ
ンダＱυを円筒室Ｑ３下部のめねじにねじ込むことによ
り固定され、同シリンダ（２υのめねじに螺合するばね
座（ハ）と膜板翰の下面に当接するばね座３りとの間に
調圧ばね０４）が挿入され、ばね座（ハ）のおねじにキ
ャップ（ハ）のめねじがねじ込まれている。Next, the pressure regulating section (B) K will be explained. Tuning pressure part (B)
is structured as follows. That is, a cylindrical chamber r1'3 having a female thread at the inlet is provided at the upper left side of the valve support plate αυ, and a cylindrical chamber αJ having a female thread at the inlet is provided at the lower left side, concentrically with the cylindrical chamber (121). The cylindrical chambers α 3 communicate with each other through round holes α, and valve seats α are fitted into the round holes α and guided into a part of the flow path (15α) of the valve seats aω. A rubber sheet (16α) is attached to the lower surface of the center 7 flange of the pressure regulating valve body which can be moved up and down.The pressure regulating valve body αe also has a cap α that is screwed into the female thread at the top of the cylindrical chamber α2.
It is also guided through the round hole η. Further, a spring α~ is interposed between the cap αη and the pressure regulating valve body Q6). In addition, an elastic membrane plate (19) is fixed to the cylindrical chamber (13 by screwing the cylinder Qυ into the female thread at the bottom of the cylindrical chamber Q3 via the presser foot ■, and a spring seat (H) screwed into the female thread of the cylinder (2υ) ) and a spring seat 3 that contacts the lower surface of the membrane plate, a pressure regulating spring 04) is inserted, and the female thread of the cap (C) is screwed into the male thread of the spring seat (C).
またシリンダＱυに通気孔（ハ）が設けられて、前記供
給部内の流路０りが弁支持板αυを貫通し、前記円筒室
ａ２に開口していて、膜板ａ９上面の空間から前記円筒
室（５）へ弁支持板（１１）を貫通する流路（４３が設
けられている。Further, a ventilation hole (c) is provided in the cylinder Qυ, and a flow path in the supply section passes through the valve support plate αυ and opens into the cylindrical chamber a2, so that the air flow from the space above the membrane plate a9 to the cylinder A flow path (43) is provided that passes through the valve support plate (11) to the chamber (5).
（作用）
次に前記の圧力調整弁の作用を説明すると、ピストン（
財）の位置に関係なく、−次側通路（ハ）→円筒室−→
円管部（至）上部と円管部（至）の孔（３６α）→絞り
（ハ）→流路０２１を経て円筒室鰺に流れる空気流（Ｃ
）によ・す、円筒室（１２＋の空気圧が一次側通路（ハ
）の空気圧と同圧になるようになっている。また二次側
通路（４４への空気流（ＤＪは膜板翰上面の空間→流路
（４３１→円筒室（５）となり、膜板翰上面の空間の空
気圧が二次側通路（４４）の空気圧と同圧になるように
なっている。(Function) Next, to explain the function of the pressure regulating valve, the piston (
Regardless of the position of
Air flow (C
), the air pressure in the cylindrical chamber (12+ is set to be the same as the air pressure in the primary passage (c). Also, the air flow to the secondary passage (44) is space→flow path (431→cylindrical chamber (5)), and the air pressure in the space above the membrane plate is made to be the same as the air pressure in the secondary passageway (44).
第１図に示す供給停止位置または第３図に示す部分供給
位置にあるとき、二次側通路（４４Ｊの空気が多量に消
費されて、二次側通路（４４の空気圧が設定圧力より急
激に低下すると、調圧ばねＱ４に押圧されている膜板住
ｌが設定位置（調圧弁体住ｅと弁座（１５）とが当接し
ている位置→から上昇し、調圧弁体αｅが流路（１５ａ
）を開く。すると、前記の空気流（ｑが流路（１５α）
を通シ抜けて、前記の空気流（Ｄ）とな勺−次側通路（
４５１の空気が二次側通路（財）へ急速に流れ込んで、
二次側通路色の空気圧が設定圧力に近づくが、前記の空
気流ｆＯは絞シ（ト）によシ絞られているため、ピスト
ン（ロ）が下方への力を受け、供給ばね（４Ｇのばね力
に打ち勝って、下降する。すると、供給弁体（至）のス
トッパ（３８α）が止め輪０特に引かれて、供給弁体例
が下降し、流路０２が開き、流路（４５１→流路０り→
横孔（３３α）→円筒室■を経由する空気流（６）が生
じ、これが空気流（Ｃ）→流路（１５α）→空気流（至
）による空気流に加わるため、空気が一次側通路＋４５
１から二次側通路（４４）へ急速に補充される（第２図
の全供給位置参照）。When in the supply stop position shown in Fig. 1 or the partial supply position shown in Fig. 3, a large amount of air in the secondary passage (44 J) is consumed, and the air pressure in the secondary passage (44 J) suddenly becomes lower than the set pressure. When the pressure decreases, the membrane plate 1 pressed by the pressure regulating spring Q4 rises from the set position (the position where the pressure regulating valve body e and the valve seat (15) are in contact with each other), and the pressure regulating valve body αe moves into the flow path. (15a
)open. Then, the air flow (q is the flow path (15α)
The air flows through the air flow (D) and connects to the air flow (D).
451 air rapidly flows into the secondary passage (goods),
The air pressure in the secondary passage approaches the set pressure, but since the air flow fO is throttled by the restrictor (G), the piston (B) receives a downward force, causing the supply spring (4G Then, the stopper (38α) of the supply valve body (to) is pulled by the retaining ring 0, the supply valve body descends, the flow path 02 is opened, and the flow path (451→ Flow path 0 →
An air flow (6) is generated that passes through the horizontal hole (33α) → the cylindrical chamber ■, and this is added to the air flow from the air flow (C) → flow path (15 α) → air flow (to), so that the air flows through the primary side passage. +45
1 to the secondary passageway (44) (see all supply positions in FIG. 2).
二次側通路（４尋の空気圧が設定圧力に近ずくと、前記
空気流ρ）が緩徐になシ、絞シ（ハ）により生ずる下向
きの圧力が減じ、ピストン（ロ）が供給はねｌ１４１に
より押上げられ、流路０２が徐々に閉じて、空気流（２
）が消え、第３図に示す部分供給位置となシ、更に二次
側通路（４尋の空気圧が設定圧になると、調圧弁体ａｅ
が流路（１５α）を閉じて、空気流（Ａ）→流路（１５
α）→空気流（Ｄ）の空気流が消え、第１図に示す供給
停止位置となる。When the air pressure in the secondary passage (4 fathoms) approaches the set pressure, the air flow ρ gradually slows down, the downward pressure generated by the restriction (c) decreases, and the piston (b) stops supplying l141 The flow path 02 gradually closes, and the air flow (2
) disappears, and the partial supply position shown in Figure 3 is reached.
closes the flow path (15α), and the air flow (A) → flow path (15
The air flow of α) → air flow (D) disappears, and the supply stop position shown in FIG. 1 is reached.
前記の作用によシニ次側通路（財）の空気圧が第５図の
圧力上昇曲線−のようになって、前記従来の圧力調整弁
による設定圧αＧまでの空気充足時間σ□）に比べると
、本発明の圧力調整弁の場合、空気充足時間σ２）が短
縮される。Due to the above-mentioned action, the air pressure in the secondary passage becomes as shown in the pressure rise curve in Figure 5, and compared to the air filling time σ□) to reach the set pressure αG by the conventional pressure regulating valve. , in the case of the pressure regulating valve of the present invention, the air filling time σ2) is shortened.
なお、二次側通路（４４）の空気圧が設定圧（１０１よ
り少し低下した場合には、前記空気流（Ｃ）が絞り（至
）を通過するときにピストン（財）を下降させるだけの
差圧を生じないので、−次側通路（ハ）から二次側通路
＠４への空気の補充は従来の圧力調整弁のように空気流
（Ｃ）→流路（１５ＣＬ）→空気流■）により行なわれ
る第３図の部分供給位置で空気補充が行なわれるが、こ
のような場合罠は、通常−次側通路（４５１から二次側
通路Ｇｔ４）への急速な空気の補充を必要としない。In addition, if the air pressure in the secondary side passage (44) is slightly lower than the set pressure (101), the difference is enough to lower the piston when the air flow (C) passes through the throttle. Since no pressure is generated, replenishment of air from the negative side passage (c) to the secondary side passage @4 is done by air flow (C) → flow path (15CL) → air flow ■) like a conventional pressure regulating valve. Air replenishment is carried out in the partial supply position of FIG. 3, which is carried out by .
また絞り（至）及び供給ばね（４（ｌは、キャップ４１
）を取り外すと、容易に別の絞夛（至）及び別の供給ば
ね（４０に取替えられるので、前記第５図に示す空気充
足時間Ｃｒ２）を容易Ｋｇ整できる。Also, the aperture (to) and the supply spring (4 (l) is the cap 41
) can be easily replaced with another diaphragm and another supply spring (40), so the air filling time Cr2 shown in FIG. 5 can be easily adjusted by kg.
（発明の効果）
本発明の圧力調整弁は前記のように、圧力流体の−次側
通路と二次側通路とをつなぐバイパス流路を開閉する供
給弁体と同一次側通路と同二次側通路とをつなぐ流路に
設けられ前記供給弁体をもつ２ストンと同ピストンを貫
通する通路に設けた絞りと同ピストンを介して前記供給
弁体を閉方向に付勢する同ピストン背後の前記流路に設
けた供給ばねとを有し、前記流路に生じる圧力が前記供
給ばねのばね力よりも強ければ前記ピストン及び前記供
給弁体が開方向へ移動し、前記ピストンの前記流路に生
じる圧力が小さければ前記供給ばねにより前記ピストン
及び前記供給弁体が閉方向へ移動する供給部と、前記ピ
ストン背後の流路と前記二次側通路とをつなぐ流路の途
中を開閉する調圧弁体と前記二次側通路の圧力を受ける
膜板と同膜板の背後に設けて同膜板を介し前記調圧弁体
を開方向へ付勢する調圧ばねとを有し、前記膜板に作用
する前記二次側通路の圧力が同調圧ばねのばね力よりも
大きければ調圧弁体が閉方向へ移動し、前記膜板に作用
する前記二次側通路の圧力が同調圧ばねのばね力よりも
小さければ前記調圧弁体が開方向へ移動する調圧部とを
具え、前記供給弁体と前記調圧弁体とをゴム材によう構
成するとともに、前記ピストン外周の摺動部にゴム製シ
ールを取付けているので、二次側通路の流体圧が設定圧
より低下すると、低下分の圧力流体を速やかに補充でき
る効果がある。(Effects of the Invention) As described above, the pressure regulating valve of the present invention has a supply valve body that opens and closes a bypass flow path that connects a pressure fluid downstream passage and a secondary passage; A two-stone valve provided in a flow path connecting the side passageway and having the supply valve body; a throttle provided in a passage passing through the piston; a supply spring provided in the flow path, and if the pressure generated in the flow path is stronger than the spring force of the supply spring, the piston and the supply valve body move in the opening direction, and the flow path of the piston moves. If the pressure generated at It has a pressure valve body, a membrane plate that receives the pressure of the secondary side passage, and a pressure regulating spring that is provided behind the membrane plate and biases the pressure regulating valve body in the opening direction through the membrane plate, and the membrane plate If the pressure in the secondary passageway acting on the membrane plate is greater than the spring force of the synchronized pressure spring, the pressure regulating valve body moves in the closing direction, and the pressure in the secondary passageway acting on the membrane plate is greater than the spring force of the synchronized pressure spring. If the pressure is smaller than the force, the pressure regulating valve body moves in the opening direction. Since a manufactured seal is installed, when the fluid pressure in the secondary passageway drops below the set pressure, it has the effect of quickly replenishing the pressure fluid for the drop.
また供給弁体及び調圧弁体をゴム弁にし、ピストンの摺
動部にツム製シールを設けており、補修が簡便である。In addition, the supply valve body and pressure regulating valve body are made of rubber valves, and a seal made of Tsum is provided on the sliding part of the piston, making repairs easy.
更に性能を左右する絞りの取換が容易であるため、保守
が容易になる効果がある。Furthermore, since the diaphragm, which affects performance, can be easily replaced, maintenance is facilitated.
以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種種の設計の改変を施し
５るものである。Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design changes may be made without departing from the spirit of the present invention. be.
第１図乃至第３図は本発明の圧力調整弁の一実施例を示
す断面側面図を示し、第１図は供給停止位置、第２図は
全供給位置、第３図は部分供給位置、第４図は従来の圧
力調整弁の説明図、第５図は圧力調整弁の圧力上昇曲線
を示す線図である。
（１６１・・・調圧弁体、α傷・・・膜板、（財）・・
・調圧ばね、Ｇ３・・・流路（バイパス流路）、（２）
・・・ピストン、（３！ｌｉｌ・・・絞り、（至）・・
・供給弁体、囮・・・供給ばね、（４４）・・・二次側
通路、（４５１・・・−次側通路。
復代理人 弁理士 岡 本 重 文
外２名1 to 3 are cross-sectional side views showing one embodiment of the pressure regulating valve of the present invention, in which FIG. 1 shows the supply stop position, FIG. 2 shows the full supply position, and FIG. 3 shows the partial supply position. FIG. 4 is an explanatory diagram of a conventional pressure regulating valve, and FIG. 5 is a diagram showing a pressure rise curve of the pressure regulating valve. (161...Pressure regulating valve body, α scratch...Membrane plate, (Foundation)...
・Pressure adjustment spring, G3...flow path (bypass flow path), (2)
...Piston, (3!lil...Aperture, (to)...
・Supply valve body, decoy...supply spring, (44)...secondary side passage, (451...-next side passage. Sub-agent: Patent attorney Shige Okamoto, two others)
Claims (1)
流路を開閉する供給弁体と同一次側通路と同二次側通路
とをつなぐ流路に設けられ前記供給弁体をもつピストン
と同ピストンを貫通する通路に設けた絞りと同ピストン
を介して前記供給弁体を閉方向に付勢する同ピストン背
後の前記流路に設けた供給ばねとを有し、前記流路に生
じる圧力が前記供給ばねのばね力よりも強ければ前記ピ
ストン及び前記供給弁体が開方向へ移動し、前記ピスト
ンの前記流路に生じる圧力が小さければ前記供給ばねに
より前記ピストン及び前記供給弁体が閉方向へ移動する
供給部と、前記ピストン背後の流路と前記二次側通路と
をつなぐ流路の途中を開閉する調圧弁体と前記二次側通
路の圧力を受ける膜板と同膜板の背後に設けて同膜板を
介し前記調圧弁体を開方向へ付勢する調圧ばねとを有し
、前記膜板に作用する前記二次側通路の圧力が同調圧ば
ねのばね力よりも大きければ調圧弁体が閉方向へ移動し
、前記膜板に作用する前記二次側通路の圧力が同調圧ば
ねのばね力よりも小さければ前記調圧弁体が開方向へ移
動する調圧部とを具え、前記供給弁体と前記調圧弁体と
をゴム材により構成するとともに、前記ピストン外周の
摺動部にゴム製シールを取付けたことを特徴とする圧力
調整弁。A supply valve body that opens and closes a bypass passage connecting a primary passage and a secondary passage of pressure fluid; a piston provided in a passage that connects the same primary passage and the secondary passage; and a piston having the supply valve body; It has a throttle provided in a passage passing through the piston and a supply spring provided in the flow passage behind the piston that biases the supply valve body in the closing direction via the piston, and the pressure generated in the flow passage. is stronger than the spring force of the supply spring, the piston and the supply valve body move in the opening direction, and if the pressure generated in the flow path of the piston is small, the piston and the supply valve body are closed by the supply spring. a supply section that moves in the direction, a pressure regulating valve body that opens and closes the flow path that connects the flow path behind the piston and the secondary side passage, a membrane plate that receives pressure from the secondary side passage, and a membrane plate that receives pressure from the secondary side passage. and a pressure regulating spring provided at the back to urge the pressure regulating valve body in the opening direction through the membrane plate, such that the pressure in the secondary passage acting on the membrane plate is greater than the spring force of the regulating pressure spring. If the pressure is larger, the pressure regulating valve body moves in the closing direction, and if the pressure in the secondary passage acting on the membrane plate is smaller than the spring force of the synchronizing pressure spring, the pressure regulating valve body moves in the opening direction. A pressure regulating valve, characterized in that the supply valve body and the pressure regulating valve body are made of a rubber material, and a rubber seal is attached to a sliding portion on the outer periphery of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2452685A JPS61184616A (en) | 1985-02-13 | 1985-02-13 | Pressure adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2452685A JPS61184616A (en) | 1985-02-13 | 1985-02-13 | Pressure adjusting valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61184616A true JPS61184616A (en) | 1986-08-18 |
| JPH0434774B2 JPH0434774B2 (en) | 1992-06-09 |
Family
ID=12140595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2452685A Granted JPS61184616A (en) | 1985-02-13 | 1985-02-13 | Pressure adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61184616A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100951366B1 (en) | 2008-06-11 | 2010-04-08 | (주)모토닉 | Regulator |
| KR101045519B1 (en) | 2009-10-20 | 2011-06-30 | (주)모토닉 | Regulator |
| KR101261835B1 (en) | 2010-12-07 | 2013-05-08 | (주)모토닉 | Regulator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586005U (en) * | 1981-07-03 | 1983-01-14 | 三菱電機株式会社 | Hermetic coupling device |
-
1985
- 1985-02-13 JP JP2452685A patent/JPS61184616A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586005U (en) * | 1981-07-03 | 1983-01-14 | 三菱電機株式会社 | Hermetic coupling device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100951366B1 (en) | 2008-06-11 | 2010-04-08 | (주)모토닉 | Regulator |
| KR101045519B1 (en) | 2009-10-20 | 2011-06-30 | (주)모토닉 | Regulator |
| KR101261835B1 (en) | 2010-12-07 | 2013-05-08 | (주)모토닉 | Regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0434774B2 (en) | 1992-06-09 |
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