JP5982256B2 - Relief valve - Google Patents
Relief valve Download PDFInfo
- Publication number
- JP5982256B2 JP5982256B2 JP2012237412A JP2012237412A JP5982256B2 JP 5982256 B2 JP5982256 B2 JP 5982256B2 JP 2012237412 A JP2012237412 A JP 2012237412A JP 2012237412 A JP2012237412 A JP 2012237412A JP 5982256 B2 JP5982256 B2 JP 5982256B2
- Authority
- JP
- Japan
- Prior art keywords
- relief valve
- side chamber
- water passage
- chamber
- 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 - Fee Related
Links
Landscapes
- Safety Valves (AREA)
Description
本発明は流体圧力が一定値以上になった場合に開弁動作して圧力を開放する逃し弁に関するものである。 The present invention relates to a relief valve that opens a valve when the fluid pressure reaches a certain value or higher.
従来逃し弁は、ダイアフラムとダイアフラム中心部に設けられた開閉弁の動作により、一次側圧力を一定値以下に保持することを可能とするものが知られている(例えば、特許文献1)。 A conventional relief valve is known that can maintain the primary pressure below a certain value by the operation of a diaphragm and an on-off valve provided at the center of the diaphragm (for example, Patent Document 1).
このような逃し弁は、ダイアフラムは円形であり、一次側室と二次側室とを各々構成するケースとの境界部にダイアフラムを挟み込む構造となっている。具体的には、逃し弁は、一次側室と二次側室とを各々構成するケースとの境界部にダイアフラムを備え、前記一次側室と前記二次側室との境界部の流路を開閉する止水機能を有する弁体とを備える逃し弁であって、前記弁体が前記一次側室と前記二次側室との前記境界部を閉じている時に、一次圧が上昇すると前記一次側室と前記二次側室とを連通させるリリーフ弁機構を備え、前記リリーフ弁機構は、リリーフ弁座と、リリーフばねと、リリーフ弁体とを有し、前記一次側室ケースには、流体が前記一次側室に流れ込み易いように通水溝が設けられ、前記リリーフ弁座には、前記通水溝にはまり込む突起が設けられている。そして、前記通水溝は、リリーフ弁体が移動する移動軸に向かって延び且つ前記移動軸を挟んで対向する位置に2つ設けられ、前記突起は、移動軸を挟んで対向するこの2つの通水溝にはまり込むように2つ設けられている。 In such a relief valve, the diaphragm has a circular shape, and has a structure in which the diaphragm is sandwiched between the boundary portions of the cases constituting the primary side chamber and the secondary side chamber. Specifically, the relief valve includes a diaphragm at a boundary between the case constituting the primary side chamber and the secondary side chamber, and is a water stop that opens and closes a flow path at the boundary between the primary side chamber and the secondary side chamber. A relief valve having a valve body having a function, wherein when the primary pressure rises when the valve body closes the boundary between the primary side chamber and the secondary side chamber, the primary side chamber and the secondary side chamber A relief valve mechanism that communicates with the relief valve mechanism, the relief valve mechanism having a relief valve seat, a relief spring, and a relief valve body so that fluid can easily flow into the primary side chamber in the primary side chamber case. A water flow groove is provided, and the relief valve seat is provided with a protrusion that fits into the water flow groove. And the two water flow grooves are provided at positions that extend toward the movement axis on which the relief valve body moves and are opposed to each other across the movement axis, and the projections are arranged to face the two movement axes. Two are provided so as to fit in the water flow groove.
しかしながら、従来構成では、前記突起は、移動軸を挟んで対向する2つの通水溝にはまり込むように2つのみ設けられていたため、この2つの突起の対向方向に沿ってダイアフラムが移動することを規制する手段が無かった。従って、ダイアフラムをケースに収め、組み付ける際に、ダイアフラムがケース中心部からずれる場合があった。このため、ダイアフラムが本来の動きをせず、逃し弁の信頼性が低下するといった不都合があり得た。 However, in the conventional configuration, only two protrusions are provided so as to fit into two water passage grooves facing each other across the movement shaft, and therefore the diaphragm moves along the facing direction of the two protrusions. There was no means to regulate. Therefore, when the diaphragm is housed in the case and assembled, the diaphragm may be displaced from the center of the case. For this reason, there was a problem that the diaphragm did not move originally and the reliability of the relief valve was lowered.
そこで、本発明は、ダイアフラムのケースに組み付け時に、ダイアフラムがケース中心部に確実に取り付け可能な逃し弁を提供する。 Therefore, the present invention provides a relief valve that can be securely attached to the center of the case when the diaphragm is assembled to the case.
本発明は、一次側室と二次側室とを各々構成するケースとの境界部にダイアフラムを備え、前記一次側室と前記二次側室との境界部の流路を開閉する止水機能を有する弁体を備える逃し弁であって、前記弁体が前記一次側室と前記二次側室との前記境界部を閉じている時に、一次圧が上昇すると前記一次側室と前記二次側室とを連通させるリリーフ弁機構を備え、前記リリーフ弁機構は、前記ダイアフラムに設けられたリリーフ弁座と、リリーフばねと、リリーフ弁体とを有し、前記一次側室ケースには、流体が前記一次側室に流れ込み易いように通水溝が設けられ、前記通水溝は、リリーフ弁体が移動する移動軸の軸方向に凹んでおり、前記一次側室ケースの内壁側からこの移動軸に向かって延び且つ前記移動軸を挟んで対向しない位置に少なくとも2つ設けられ、前記リリーフ弁座には、前記通水溝にはまり込む突起が設けられ、前記突起は、前記少なくとも2つの通水溝にはまり込む位置に設けられることを特徴とする。
The present invention is a valve having a water stop function for opening and closing a flow path of a boundary portion between the primary chamber and provided with a diaphragm in the boundary portion between the case of each constituting a secondary chamber, said primary chamber and said secondary chamber A relief valve that allows the primary side chamber and the secondary side chamber to communicate with each other when the primary pressure rises when the valve element closes the boundary between the primary side chamber and the secondary side chamber The relief valve mechanism includes a relief valve seat provided on the diaphragm , a relief spring, and a relief valve element, and the primary side chamber case allows fluid to easily flow into the primary side chamber. A water flow groove is provided, the water flow groove is recessed in the axial direction of the moving shaft on which the relief valve body moves, extends from the inner wall side of the primary side chamber case toward the moving shaft, and sandwiches the moving shaft. In a position that does not face Provided two even without, wherein the relief valve seat, the projections get stuck on the water passage groove is provided, the projection is characterized in that it is provided in a position fitted into the at least two water passing grooves.
本発明は、ダイアフラムのケースに組み付け時に、ダイアフラムがケース中心部に確実に取り付けることができる。 In the present invention, when the diaphragm is assembled to the case of the diaphragm, the diaphragm can be securely attached to the center of the case.
本実施形態に係る逃し弁1は、図1、図2に示すように、一次側室ケース2、二次側室ケース3、ダイアフラム5、リリーフ弁座7、通水溝10、などで構成されている。 As shown in FIGS. 1 and 2, the relief valve 1 according to the present embodiment includes a primary side chamber case 2, a secondary side chamber case 3, a diaphragm 5, a relief valve seat 7, a water flow groove 10, and the like. .
逃し弁1は、ダイアフラム5と同軸にリリーフ弁座7が設けられ、5ダイアフラムに対して軸方向に移動可能に、かつバネで弁座に対して付勢されたリリーフ弁体が設けられ、流路20の一次側圧力が上昇するとダイアフラム5が押圧バネ力に抗って二次側に移動し、一次側圧力が所定の圧力を超えると弁体を備えたシャフトの一端がピストンに当接して弁体が弁座から離れることで開弁する。 The relief valve 1 is provided with a relief valve seat 7 coaxially with the diaphragm 5, provided with a relief valve body that is movable in the axial direction with respect to the 5 diaphragm and biased against the valve seat by a spring. When the primary pressure of the passage 20 rises, the diaphragm 5 moves against the pressing spring force and moves to the secondary side. When the primary pressure exceeds a predetermined pressure, one end of the shaft provided with the valve element comes into contact with the piston. The valve body opens when it leaves the valve seat.
また、一次側室ケース2には、流路20から一次側室18へ流体が流れ込み易いように通水溝10が複数個設けられている。また、リリーフ弁座7には突起11が複数個設けられている。 The primary side chamber case 2 is provided with a plurality of water flow grooves 10 so that fluid can easily flow from the flow path 20 to the primary side chamber 18. The relief valve seat 7 is provided with a plurality of protrusions 11.
具体的には、通水溝10は、リリーフ弁体が移動する移動軸に向かって延び且つ移動軸を挟んで対向しない位置に少なくとも2つ設けられる。また、突起11は、少なくとも2つの通水溝10にはまり込む位置に設けられる。 Specifically, at least two water flow grooves 10 are provided at positions that extend toward the moving shaft on which the relief valve body moves and do not face each other with the moving shaft interposed therebetween. Further, the protrusion 11 is provided at a position where it fits into at least two water flow grooves 10.
通水溝10の幅は、突起11の幅よりもわずかに大きく構成されている。突起11は通水溝10に落とし込むように構成され、通水溝10の数は突起11よりも多く構成される。また、通水溝10の深さは、突起11の高さよりもわずかに深く構成されている。 The width of the water flow groove 10 is configured to be slightly larger than the width of the protrusion 11. The protrusions 11 are configured to drop into the water passage grooves 10, and the number of the water passage grooves 10 is configured to be larger than that of the protrusions 11. Further, the depth of the water flow groove 10 is configured to be slightly deeper than the height of the protrusion 11.
また、図4に示すように、通水溝10は、移動軸周りに6つ設けられ、図5に示すように、突起11は、6つの通水溝10のうちの3つの通水溝10にはまり込む位置に設けられる。この例では、突起11は対角にない位置に設けられている。図3は、3つの突起11が6つの通水溝10のうちの3つにはまり込んだ状態を示す。これにより、ダイアフラムのケース組み付け時に、ダイアフラムがケース中心部に配置されるようになり、ダイアフラムが回転したり、中心からずれることがない。また、リリーフ弁機構6作動時にダイアフラム5のずれなどによる動作不良を未然に防ぐことが可能になる。 As shown in FIG. 4, six water passage grooves 10 are provided around the movement axis. As shown in FIG. 5, the protrusion 11 has three water passage grooves 10 out of the six water passage grooves 10. It is provided at a position where it fits in. In this example, the protrusions 11 are provided at positions that are not diagonal. FIG. 3 shows a state in which the three protrusions 11 are fitted into three of the six water passage grooves 10. Thus, when the diaphragm case is assembled, the diaphragm is arranged at the center of the case, and the diaphragm does not rotate or deviate from the center. Further, it is possible to prevent malfunction due to the displacement of the diaphragm 5 when the relief valve mechanism 6 is operated.
なお、図6は、本発明の実施形態の変形例に係る逃し弁を示すものであり、通水溝10は、前記移動軸周りに4つ設けられ、突起11は、前記4つの通水溝にはまり込む位置に4つ設けられる。この変形例は、対角に位置する弁座突起11同士は移動軸を挟んで互いに対向するが、それぞれ対向しない位置に設けられる突起11によってダイアフラムの移動が規制される。 FIG. 6 shows a relief valve according to a modification of the embodiment of the present invention. Four water grooves 10 are provided around the movement axis, and the protrusion 11 is formed by the four water grooves. Four are provided at the positions where they fit. In this modification, the valve seat protrusions 11 positioned diagonally face each other across the movement axis, but the movement of the diaphragm is restricted by the protrusions 11 provided at positions not facing each other.
1 逃し弁
2 一次側室ケース
3 二次側室ケース
4 ハンドル
5 ダイアフラム
6 リリーフ弁機構
7 リリーフ弁座
10 通水溝
11 突起
DESCRIPTION OF SYMBOLS 1 Relief valve 2 Primary side chamber case 3 Secondary side chamber case 4 Handle 5 Diaphragm 6 Relief valve mechanism 7 Relief valve seat 10 Water flow groove 11 Protrusion
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012237412A JP5982256B2 (en) | 2012-10-29 | 2012-10-29 | Relief valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012237412A JP5982256B2 (en) | 2012-10-29 | 2012-10-29 | Relief valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014088881A JP2014088881A (en) | 2014-05-15 |
JP5982256B2 true JP5982256B2 (en) | 2016-08-31 |
Family
ID=50790944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012237412A Expired - Fee Related JP5982256B2 (en) | 2012-10-29 | 2012-10-29 | Relief valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5982256B2 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2557352Y2 (en) * | 1990-08-06 | 1997-12-10 | 株式会社ベン | Direct acting pressure control valve |
US6802340B1 (en) * | 2003-06-26 | 2004-10-12 | Delphi Technologies, Inc. | Fuel pressure regulator having offset head and orifice axes |
JP2005249139A (en) * | 2004-03-08 | 2005-09-15 | Toyota Motor Corp | Solenoid valve |
JP5467000B2 (en) * | 2010-06-08 | 2014-04-09 | リンナイ株式会社 | safety valve |
-
2012
- 2012-10-29 JP JP2012237412A patent/JP5982256B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2014088881A (en) | 2014-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5735331B2 (en) | Fluid control valve | |
JP6653332B2 (en) | Damping valve for shock absorber | |
JP4898563B2 (en) | piston | |
KR102025143B1 (en) | valve | |
KR20080063175A (en) | Safety membrane valve with anti-rotation cap | |
JP5952150B2 (en) | Solenoid valve for fuel cell | |
CA2920997A1 (en) | Valve device | |
CN105485402A (en) | Small solenoid valve | |
WO2016136427A1 (en) | Fluid controller | |
JP5982256B2 (en) | Relief valve | |
TWI591282B (en) | Diaphragm valve | |
JP5281523B2 (en) | Valve structure | |
JP2010249250A (en) | Valve mechanism | |
KR101541684B1 (en) | Hydraulic control apparatus | |
JP4425907B2 (en) | Diaphragm case for pressure actuator with air passage | |
JP5566407B2 (en) | Solenoid valve and pilot solenoid valve | |
EP3002464A1 (en) | Hydraulic valve | |
JP2008089170A (en) | Valve structure of shock absorber | |
KR101601758B1 (en) | Fluid Control Valve | |
JP4994048B2 (en) | Hydraulic control device | |
JP5872207B2 (en) | Flow path switching valve | |
JP6966961B2 (en) | Control valve | |
JP6558300B2 (en) | Valve structure | |
JP4597799B2 (en) | Solenoid switching valve | |
JP4689318B2 (en) | Release valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20150225 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150225 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20151104 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20151221 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20160705 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160801 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5982256 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
LAPS | Cancellation because of no payment of annual fees |