JP2717973B2 - Pressure control valve - Google Patents
Pressure control valveInfo
- Publication number
- JP2717973B2 JP2717973B2 JP26286488A JP26286488A JP2717973B2 JP 2717973 B2 JP2717973 B2 JP 2717973B2 JP 26286488 A JP26286488 A JP 26286488A JP 26286488 A JP26286488 A JP 26286488A JP 2717973 B2 JP2717973 B2 JP 2717973B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- sliding cylinder
- wall
- annular
- 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 - Fee Related
Links
Landscapes
- Details Of Valves (AREA)
- Safety Valves (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は弾性体の弾性力を負荷された弁体とこの弁
体を収納する筐体とからなる直動式圧力制御弁に関する
ものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direct-acting pressure control valve comprising a valve body loaded with elastic force of an elastic body and a housing for housing the valve body. .
従来のこの種直動式圧力制御弁は、第３図に示すよう
に、入口孔ａと出口孔ｂとを有する筐体ｃ内に、前記入
口孔ａを閉塞する弁体ｄを収容し、この弁体ｄには前記
筐体ｃにボルトｅで締め付けられる押え蓋ｆを介して弾
性体（ばね）ｇの弾性力を負荷して弁座ｈに押しつける
ようにした構成を有している。したがつて弁座ｈを通過
したあとの吐出側には流体抵抗が生じない構造となつて
いる。As shown in FIG. 3, a conventional direct-acting pressure control valve of this type accommodates a valve element d for closing the inlet hole a in a housing c having an inlet hole a and an outlet hole b, The valve element d has a configuration in which an elastic force of an elastic body (spring) g is applied to the valve seat h through a holding lid f that is fastened to the housing c with a bolt e and pressed against the valve seat h. Therefore, the structure is such that no fluid resistance is generated on the discharge side after passing through the valve seat h.
そのため、弁体が弁座よりもち上げられると、共に圧
力が減じる現象が起こり、弁体の開閉動作が激しく、弁
座を打つ音が騒音として問題であつた。Therefore, when the valve body is lifted up from the valve seat, a phenomenon occurs in which the pressure decreases together, the opening and closing operation of the valve body is severe, and the sound of hitting the valve seat is a problem as noise.
ここにおいてこの発明はこの種圧力制御弁を構成する
筐体の中央に弁体と弾性体を収納する中空円筒状の摺動
筒を設け、この摺動筒の上部に押え蓋を、下部に入口孔
を、この入口孔と前記摺動筒との段差部分に弁座を形成
し、摺動筒の外側を囲んで環状通路を配設し、この環状
通路と摺動筒との隔壁に複数個の小径の連通口をあけ、
環状通路の外壁の一部に出口孔をあけ、摺動筒の内壁と
微少の隙間で外筒壁をもつ円筒状の弁体を摺動筒内部に
収納し、弁体の下部に弁座と合致しかつ外筒壁より小径
の環状弁肩部を設け、弁体の上部に前記弾性体を収納す
る室を設け、環状の弁肩部と弁体の外筒壁の間に環状溝
を形成し、環状溝の一部に前記室に連通する細孔を設
け、環状溝の外縁が、小径の連通口をしや閉するように
することを提案するものである。Here, the present invention provides a hollow cylindrical sliding cylinder for accommodating a valve element and an elastic body in the center of a casing constituting a pressure control valve of this type, a holding lid at an upper portion of the sliding cylinder, and an inlet at a lower portion. A hole is formed at a step portion between the inlet hole and the sliding cylinder, an annular passage is provided around the outside of the sliding cylinder, and a plurality of holes are provided in a partition between the annular passage and the sliding cylinder. Open a small diameter communication port of
An outlet hole is made in a part of the outer wall of the annular passage, and a cylindrical valve body having an outer cylinder wall with a small gap from the inner wall of the sliding cylinder is housed inside the sliding cylinder. An annular valve shoulder portion that matches and has a smaller diameter than the outer cylinder wall is provided, a chamber for accommodating the elastic body is provided above the valve body, and an annular groove is formed between the annular valve shoulder portion and the outer cylinder wall of the valve body. In addition, it is proposed that a small hole communicating with the chamber is provided in a part of the annular groove so that an outer edge of the annular groove closes or closes a small-diameter communication port.
すなわちこの発明の上記構成において、弁座を通過し
た液体に、吐出口で通過抵抗をもたせること、及び噴流
を受ける部分を弁体にもたせること等により、弁体を持
ちあげる流体力を発生させ、弁体の弁座への打ちつけ音
を防止するものである。That is, in the above configuration of the present invention, the fluid passing through the valve seat is provided with a passage resistance at the discharge port, and the portion receiving the jet flow is provided on the valve body, thereby generating a fluid force for lifting the valve body, This is to prevent the tapping sound of the valve body against the valve seat.
次にこの発明の実施例を第１図及び第２図について説
明する。Next, an embodiment of the present invention will be described with reference to FIGS.
この発明の圧力制御弁は、筐体１、弁体、弾性体（ば
ね）３、押え蓋４とから主として構成され、前記筐体１
は、中空円筒状の摺動筒５、その外側に隔壁６を挟んで
全周に形成された環状通路７とからなり、隔壁６の最下
部には複数個の小径の連通孔８が設けられている。前記
環状通路７には出口孔９が設けられ、摺動筒５の下部壁
10に、この摺動筒５より小径の入口孔11があり、この入
口孔11の角部に弁座12が設けられている。The pressure control valve according to the present invention mainly includes a casing 1, a valve body, an elastic body (spring) 3, and a holding lid 4, and the casing 1
Is composed of a hollow cylindrical sliding cylinder 5 and an annular passage 7 formed around the outer periphery of the sliding cylinder 5 with a partition 6 interposed therebetween. A plurality of small-diameter communication holes 8 are provided at the bottom of the partition 6. ing. An outlet hole 9 is provided in the annular passage 7, and a lower wall of the sliding cylinder 5 is provided.
10 has an inlet hole 11 smaller in diameter than the sliding cylinder 5, and a valve seat 12 is provided at a corner of the inlet hole 11.
前記摺動筒５の内部には、弁体２とその上の室13に弾
性体（ばね）３が収められ、弾性体３は、ボルト14によ
つて筐体１に固定された押え蓋４によつて、弁体２を弁
座12に押しつけている。円筒状の弁体２の外筒壁15は摺
動筒５の内壁との間に、微少の隙間を構成され、弁体２
の下部に弁座12と密接シールする弁肩部16を設け、この
弁肩部16と外筒壁15の間に環状溝17を形成し、この環状
溝17の突起状の外縁18が、摺動筒５の下部壁10との間に
小さい隙間を形成し、さらに連通孔８をしや閉するよう
に構成されている。また環状溝17の一部には、前記室13
と連通する細孔19が設けられている。Inside the sliding cylinder 5, an elastic body (spring) 3 is accommodated in a valve body 2 and a chamber 13 above the valve body 2. The elastic body 3 is provided with a holding lid 4 fixed to the housing 1 by bolts 14. Accordingly, the valve body 2 is pressed against the valve seat 12. The outer cylinder wall 15 of the cylindrical valve element 2 has a small gap between the outer cylinder wall 15 and the inner wall of the sliding cylinder 5.
A valve shoulder 16 for tightly sealing with the valve seat 12 is provided at a lower portion of the valve body, and an annular groove 17 is formed between the valve shoulder 16 and the outer cylinder wall 15, and a protruding outer edge 18 of the annular groove 17 is slidable. A small gap is formed between the moving cylinder 5 and the lower wall 10, and the communication hole 8 is further closed. Further, a part of the annular groove 17 includes the chamber 13.
There are provided pores 19 communicating with the holes.
作動について説明すると、P1の圧力をもつ液体は入口
孔11から入り、弁体２を弾性体３に抗して押しあげ、環
状溝17及び下部壁10と外縁18との隙間Ｃを通過し、連通
孔８を通り、環状通路７を経て、出口孔９から吐出され
る。Referring to operation, liquid with a pressure of P 1 enters through inlet hole 11, give press against the valve body 2 in the elastic body 3, it passes through the gap C between the annular groove 17 and the lower wall 10 and the outer edge 18 , Through the communication hole 8, through the annular passage 7, and is discharged from the outlet hole 9.
このとき、連通孔８が外縁18でさえぎられているの
で、環状溝17にはP2なる圧力が生じ、弁体２を持ち上げ
るように作用する。さらに、弁座12からの噴流を環状溝
17に受けることにより、弁体２は噴射力を受ける。すな
わち弁体２は、Ａ部分の面積にP1の圧力、Ｂ−Ａの面積
にP2の圧力、さらに環状溝17に噴射力を受けて持ち上が
ることになる。したがつて弁体２を持ち上げる力は、開
弁により、急激に変化しなくなり、弁体２は、急激に弁
座12を打たないようになる。また前記細孔19により、室
13の中の圧力変化には、環状溝17部の圧力変化に比し
て、時間のずれが生じるため、この現象を助長する役目
をする。At this time, since the communication hole 8 is blocked by the outer edge 18, a pressure of P 2 is generated in the annular groove 17 and acts to lift the valve body 2. In addition, the jet from the valve seat 12 is
The valve body 2 receives the injection force by receiving the force at 17. That valve body 2 will be lifted by receiving pressure P 1 in the area of the A section, B-A area pressure P 2, and further the injection force on the annular groove 17. Accordingly, the force for lifting the valve body 2 does not suddenly change due to the opening of the valve, and the valve body 2 does not suddenly hit the valve seat 12. Further, the chamber 19
The pressure change in 13 has a time lag compared to the pressure change in the annular groove 17, and thus serves to promote this phenomenon.
上述のような構成を有することにより、この発明によ
れば弁体が弁座に打ちつけられることがなくなるため、
金属的騒音がなくなり、快適な使用環境を与え、公害防
止に大きな役目を果すものである。By having the above-described configuration, according to the present invention, the valve body is not hit against the valve seat,
It eliminates metallic noise, provides a comfortable use environment, and plays a major role in preventing pollution.
第１図はこの発明による圧力制御弁の断面図、第２図は
第１図II−II線に沿う断面図で、第３図は従来の直動式
圧力制御弁の断面図である。 なお図において、 １……筐体 ２……弁体 ３……弾性体（ばね） ４……押え蓋 ５……摺動筒 ６……隔壁 ７……環状通路 ８……連通口 ９……出口孔 11……入口孔 12……弁座 13……室 15……外筒壁 16……弁肩部 17……環状溝 19……細孔 である。1 is a sectional view of a pressure control valve according to the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a sectional view of a conventional direct acting pressure control valve. In the figures, 1 ... housing 2 ... valve element 3 ... elastic body (spring) 4 ... holding lid 5 ... sliding cylinder 6 ... partition wall 7 ... annular passage 8 ... communication port 9 ... Outlet hole 11 ... Inlet hole 12 ... Valve seat 13 ... Chamber 15 ... Outer cylinder wall 16 ... Valve shoulder 17 ... Annular groove 19 ... Fine pores.
Claims (1)
体を収納する筐体とからなる直動式圧力制御弁におい
て、この筐体の中央に弁体と弾性体を収納する中空円筒
状の摺動筒を設け、この摺動筒の上部に押え蓋を、下部
に入口孔を、この入口孔と前記摺動筒との段差部分に弁
座を形成し、摺動筒の外側を囲んで環状通路を配設し、
この環状通路と摺動筒との隔壁に複数個の小径の連通口
をあけ、環状通路の外壁の一部に出口孔をあけ、摺動筒
の内壁と微少の隙間で外筒壁をもつ円筒状の弁体を摺動
筒内部に収納し、弁体の下部に弁座と合致しかつ外筒壁
より小径の環状弁肩部を設け、弁体の上部に前記弾性体
を収納する室を設け、環状の弁肩部と弁体の外筒壁の間
に環状溝を形成し、環状溝の一部に前記室に連通する細
孔を設け、環状溝の外縁が、小径の連通口をしや閉する
ように構成した圧力制御弁。In a direct-acting pressure control valve comprising a valve body loaded with elastic force of an elastic body and a housing for housing the valve body, the valve body and the elastic body are housed in the center of the housing. A sliding cylinder having a hollow cylindrical shape is provided, a holding lid is provided at an upper portion of the sliding cylinder, an inlet hole is provided at a lower portion, and a valve seat is formed at a step portion between the inlet hole and the sliding cylinder. Arrange an annular passage around the outside,
A cylinder having a plurality of small-diameter communication ports in the partition wall between the annular passage and the sliding cylinder, an outlet hole in a part of the outer wall of the annular passage, and an outer cylinder wall with a small gap from the inner wall of the sliding cylinder. A cylindrical valve body is housed inside the sliding cylinder, an annular valve shoulder is provided at the lower part of the valve body that matches the valve seat and smaller in diameter than the outer cylinder wall, and a chamber for housing the elastic body is provided at the upper part of the valve body. The annular groove is formed between the annular valve shoulder and the outer cylinder wall of the valve body, a small hole communicating with the chamber is provided in a part of the annular groove, and the outer edge of the annular groove has a small-diameter communication port. A pressure control valve that is configured to close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26286488A JP2717973B2 (en) | 1988-10-20 | 1988-10-20 | Pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26286488A JP2717973B2 (en) | 1988-10-20 | 1988-10-20 | Pressure control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02113180A JPH02113180A (en) | 1990-04-25 |
| JP2717973B2 true JP2717973B2 (en) | 1998-02-25 |
Family
ID=17381692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26286488A Expired - Fee Related JP2717973B2 (en) | 1988-10-20 | 1988-10-20 | Pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2717973B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10048938A1 (en) * | 2000-10-04 | 2002-04-25 | Bosch Gmbh Robert | Pressure-regulating valve for use with a fluid has a control unit to operate a valve element moving in a valve body with a valve-closing element in a valve space. |
| GB0221554D0 (en) * | 2002-09-17 | 2002-10-23 | Boc Group Plc | Cylinder valve |
| JP5552341B2 (en) * | 2010-03-15 | 2014-07-16 | 株式会社テイエルブイ | Relief valve |
| JP5552342B2 (en) * | 2010-03-15 | 2014-07-16 | 株式会社テイエルブイ | Relief valve |
| ES2818532T3 (en) * | 2015-12-31 | 2021-04-13 | Naoyuki Ishikita | Relief valve |
-
1988
- 1988-10-20 JP JP26286488A patent/JP2717973B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02113180A (en) | 1990-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |