JP7361534B2 - relief valve device - Google Patents

relief valve device Download PDF

Info

Publication number
JP7361534B2
JP7361534B2 JP2019153322A JP2019153322A JP7361534B2 JP 7361534 B2 JP7361534 B2 JP 7361534B2 JP 2019153322 A JP2019153322 A JP 2019153322A JP 2019153322 A JP2019153322 A JP 2019153322A JP 7361534 B2 JP7361534 B2 JP 7361534B2
Authority
JP
Japan
Prior art keywords
valve body
movement
axis
operating member
relief 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.)
Active
Application number
JP2019153322A
Other languages
Japanese (ja)
Other versions
JP2021032337A (en
Inventor
賢昭 外村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hochiki Corp
Original Assignee
Hochiki Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hochiki Corp filed Critical Hochiki Corp
Priority to JP2019153322A priority Critical patent/JP7361534B2/en
Publication of JP2021032337A publication Critical patent/JP2021032337A/en
Application granted granted Critical
Publication of JP7361534B2 publication Critical patent/JP7361534B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Safety Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Details Of Valves (AREA)

Description

本発明は、スプリンクラー設備等の流水検知装置に並列接続して2次側の圧力上昇を1次側に逃がすリリーフ弁装置に関する。 The present invention relates to a relief valve device that is connected in parallel to a flowing water detection device such as a sprinkler system and releases pressure increase on the secondary side to the primary side.

従来のスプリンクラー消火設備にあっては、消火ポンプ等の加圧送水装置から給水本管が建物の高さ方向に立ち上げられ、給水本管からは建物の階別に分岐管が流水検知装置(「自動警報弁」ともいう)を介して引き出され、分岐管に閉鎖型の複数のスプリンクラーヘッドを接続し、分岐管の末端は末端試験装置を介して排水管に接続している。 In conventional sprinkler fire extinguishing equipment, a water supply main is raised in the height direction of the building from a pressurized water supply device such as a fire pump, and from the water main, branch pipes are installed on each floor of the building to detect flowing water. A plurality of closed sprinkler heads are connected to the branch pipe, and the end of the branch pipe is connected to the drain pipe through an end test device.

火災が発生すると、熱によってスプリンクラーヘッドが開放し、加圧送水装置から供給される消火用水を散布して火災を消火抑制する。スプリンクラーヘッドが開放すると分岐管に消火用水が流れることで流水検知装置の弁体が開放し、圧力スイッチを作動して流水検知信号を制御盤に出力して火災発生を報知し、更に、移報信号を火災受信機に送って火災警報を出力させる。 When a fire occurs, the heat causes the sprinkler head to open and spray fire extinguishing water supplied from the pressurized water supply system to suppress the fire. When the sprinkler head opens, fire extinguishing water flows into the branch pipe, which opens the valve body of the flowing water detection device, activates the pressure switch, outputs a flowing water detection signal to the control panel, and alerts the control panel that a fire has occurred. A signal is sent to the fire receiver to output a fire alarm.

夏場などにおいて、流水検知装置の二次側配管内の圧力が異常に上昇すると、漏水が発生したり、構成機器が破損する可能性がある。このため流水検知装置と並列に、2次側の圧力上昇を1次側に逃がし、1次側から2次側への流れは阻止するリリーフ弁装置を設け、2次側の漏水や構成機器の破損等を防止するようにしている(特許文献1)。 If the pressure inside the secondary piping of the flowing water detection device increases abnormally, such as during the summer, water may leak or component equipment may be damaged. For this reason, a relief valve device is installed in parallel with the water flow detection device to release the pressure increase on the secondary side to the primary side and prevent the flow from the primary side to the secondary side. This is to prevent damage etc. (Patent Document 1).

このようなリリーフ弁装置にあっては、運用期間が長くなると、長期間閉鎖状態にある弁体の2次側にゴミなどの異物が付着して目詰まりを起こし、2次側圧力の上昇に対し弁体の開動作が行われても、上昇した2次側圧力を速やかに1次側に逃がすことができなくなる場合がある。 In such a relief valve device, when the operation period becomes long, foreign matter such as dirt adheres to the secondary side of the valve body that is closed for a long period of time, causing clogging, and the secondary side pressure increases. On the other hand, even if the valve body is opened, the increased pressure on the secondary side may not be able to be promptly released to the primary side.

この問題を解決するためには定期点検等の際に、リリーフ弁装置を取り外して分解清掃することで異物を除去すれば良いが、流水検知装置周りの狭い場所に設置されたリリーフ弁装置を取り外して分解清掃し、再び組み立てて元に戻す作業が必要となり、煩雑で手間と時間がかかる。 To solve this problem, remove the relief valve device and disassemble and clean it during periodic inspections to remove foreign objects, but remove the relief valve device installed in a narrow space around the flowing water detection device. It is necessary to disassemble it, clean it, reassemble it, and put it back together, which is complicated, labor-intensive, and time-consuming.

一方、スプリンクラー消火設備の分岐管の末端に設けた末端試験装置は、末端試験弁とオリフィスで構成され、末端試験弁を開操作したときにオリフィスで決まるスプリンクラーヘッド1台の作動に相当する流量を流して放水試験を行うようにしている。 On the other hand, the terminal test device installed at the end of the branch pipe of sprinkler fire extinguishing equipment consists of a terminal test valve and an orifice, and when the terminal test valve is opened, it produces a flow rate equivalent to the operation of one sprinkler head determined by the orifice. I'm trying to run a water test by running it through the water.

このような末端試験装置として、ボール弁にオリフィスを一体に備えたものが提案され、操作レバーを所定方向に90°回すとボール弁が開放して弁体に形成したオリフィスを介して排水側にスプリンクラーヘッド1台の作動に相当する量の消火用水が流れ、また、操作レバーを反対方向に90°回すとオリフィスが逆向きに開いて排水側に消火用水が流れることで、オリフィスに付着したごみなどの異物の除去や目詰まりを簡単に解消できるようにしている(特許文献2)。 As such a terminal testing device, a ball valve with an orifice integrated therein has been proposed, and when the operating lever is turned 90 degrees in a predetermined direction, the ball valve opens and the water flows to the drain side through the orifice formed in the valve body. The amount of fire extinguishing water that is equivalent to operating one sprinkler head flows, and when the control lever is turned 90 degrees in the opposite direction, the orifice opens in the opposite direction and fire extinguishing water flows to the drain side, which removes debris that has adhered to the orifice. This makes it easy to remove foreign substances such as and clear clogging (Patent Document 2).

特開平7-265456号公報Japanese Patent Application Publication No. 7-265456 特開2006-223418公報Japanese Patent Application Publication No. 2006-223418

ところで、特許文献2の末端試験装置と同様に、流水検知装置と並列に設けたリリーフ弁装置についても、操作レバーによる弁体の開閉でごみなどの異物を簡単に除去することが考えられる。 By the way, similarly to the terminal testing device of Patent Document 2, it is conceivable that foreign substances such as dust can be easily removed by opening and closing the valve body using the operating lever in the relief valve device provided in parallel with the flowing water detection device.

しかしながら、流水検知装置に並列に設けたリリーフ弁装置は、2次側圧力の上昇に対しスプリングに抗して弁体を軸方向に移動して開閉する構造の弁であり、特許文献2の異物除去構造を適用することができない。 However, the relief valve device installed in parallel with the flowing water detection device is a valve that opens and closes by moving the valve body in the axial direction against a spring against an increase in the pressure on the secondary side. Unable to apply removal structure.

また、操作レバーは操作時の可動範囲、所要スペースが大きく、流水検知装置周りに操作レバー付きのリリーフ弁装置を配置するには、操作レバーの操作を可能とする十分な空きスペースを確保する必要があり、リリーフ弁装置を含めた流水検知装置の所要設置スペースが大きくなる問題がある。 In addition, the operating lever has a large movable range and space requirements when operating, so in order to place a relief valve device with an operating lever around the flowing water detection device, it is necessary to secure enough free space to allow the operating lever to be operated. Therefore, there is a problem in that the required installation space for the water flow detection device including the relief valve device becomes large.

本発明は、リリーフ弁の取外しや分解を伴わず、操作に必要なスペースを縮小しつつ、異物を除去して詰まりを簡単に解消する弁体の操作を可能とするリリーフ弁装置を提供する。 To provide a relief valve device which enables the operation of a valve body that easily eliminates clogging by removing foreign matter while reducing the space required for operation without removing or disassembling the relief valve.

(消火設備のリリーフ弁装置)
本発明は、所定の機器の2次側圧力が上昇したときに弁体の開放により2次側を1次側に連通して上昇した2次側圧力を低下させるリリーフ弁装置であって
1次側と2次側とが直線状に配置された略筒状の弁ボディと、
弁ボディの外側に配置された筒状操作部材と、
筒状操作部材の所定の操作により弁体を開閉して詰り物質を除去する詰り解消手段と、
を備えたことを特徴とする。
(Relief valve device for fire extinguishing equipment)
The present invention is a relief valve device that connects the secondary side to the primary side by opening a valve body to reduce the increased secondary side pressure when the secondary side pressure of a predetermined device increases,
a substantially cylindrical valve body with a primary side and a secondary side arranged in a straight line;
a cylindrical operating member disposed on the outer circumferential side of the valve body;
a clogging removal means that opens and closes a valve body to remove clogging substances by a predetermined operation of a cylindrical operating member ;
It is characterized by having the following.

(詰り解消手段1)
詰り解消手段は、
筒状操作部材の、軸方向の移動操作による軸方向の動きを軸方向に略直交する方向の動きに変換する第1変換手段と、
第1変換手段で変換した軸方向に略直交する方向の動きを、弁体を開閉する方向の動きに変換する第2変換手段と、
を備える。
(Measures for clearing blockage 1)
The means to clear the blockage is
a first conversion means for converting an axial movement of the cylindrical operating member into a movement in a direction substantially orthogonal to the axial direction ;
a second conversion means that converts the movement in the direction substantially perpendicular to the axial direction converted by the first conversion means into a movement in the direction of opening and closing the valve body;
Equipped with

(第1変換手段と第2変換手段)
第1変換手段は、
弁ボディの外側に軸方向に移動自在に配置された筒状操作部材の内周面に形成され、軸心側にテーパー面が開いた環状テーパー溝と、
環状テーパー溝に配置された複数のボール部材と、
弁ボディに形成され、複数のボール部材の各々を軸に略直交する方向に出没自在に保持する複数のボール収納孔と、
を備え、筒状操作部材を軸方向に移動操作したときの環状テーパー溝の動きによりボール部材をボール収納孔から出没させて軸に略直交する方向の動きに変換し、
第2変換手段は、
弁体と同軸に連結された錐状部材を備え、当該錐状部材の錐状外周面に対する複数のボール部材の出没に連動して、ボール部材の軸に略直交する方向の動きを、弁体を開閉する方向の動きに変換して弁体を開閉させる。
(First conversion means and second conversion means)
The first conversion means is
an annular tapered groove formed on the inner circumferential surface of a cylindrical operating member disposed on the outside of the valve body so as to be freely movable in the axial direction, and having a tapered surface open on the axial center side;
a plurality of ball members arranged in the annular tapered groove;
a plurality of ball storage holes formed in the valve body and holding each of the plurality of ball members so as to be freely retractable in a direction substantially perpendicular to the axis;
The ball member is moved in and out of the ball storage hole by the movement of the annular tapered groove when the cylindrical operating member is moved in the axial direction, converting the ball member into a movement in a direction substantially perpendicular to the axis;
The second conversion means is
The valve body includes a conical member coaxially connected to the valve body, and moves in a direction substantially perpendicular to the axis of the ball member in conjunction with the protrusion and retraction of a plurality of ball members with respect to the conical outer peripheral surface of the conical member. The valve body is opened and closed by converting it into a movement in the direction of opening and closing.

(詰り解消手段2)
詰り解消手段は、
筒状操作部材の、軸周りの回転操作による回転方向の動きを軸方向に略直交する方向の動きに変換する第3変換手段と、
第3変換手段で変換した軸方向に略直交する方向の動きを、弁体を開閉する方向の動きに変換する第4変換手段と、
を備える。

(Clog clearing means 2)
The means to clear the blockage is
a third converting means for converting movement of the cylindrical operating member in the rotational direction due to rotational operation around the axis into movement in a direction substantially perpendicular to the axial direction ;
a fourth converting means that converts the movement in the direction substantially perpendicular to the axial direction converted by the third converting means into a movement in the direction of opening and closing the valve body;
Equipped with

(第3変換手段と第4変換手段)
第3変換手段は、
弁ボディの外側に軸回りに回転自在に配置された筒状操作部材の内周面に所定角度単位に形成され、回転角に応じて溝の深さが変化する複数の環状カム溝と、
複数の環状カム溝の各々に配置された複数のカム部材と、
弁ボディに形成され、カム部材を軸に略直交する方向に出没自在に保持する複数のカム収納孔と、
を備え、筒状操作部材を軸回りに回転操作したときの環状カム溝の回転方向の動きにより、カム収納孔からカム部材を出没させて軸に略直交する方向の動きに変換し、
第4変換手段は、
弁体と同軸に連結された錐状部材を備え、当該錐状部材の錐状外周面に対する複数のカム部材の出没に連動して、カム部材の軸に略直交する方向の動きを、弁体を開閉する方向の動きに変換して弁体を開閉させる。
(Third conversion means and fourth conversion means)
The third conversion means is
a plurality of annular cam grooves formed in predetermined angle units on the inner circumferential surface of a cylindrical operating member rotatably disposed around an axis on the outside of the valve body, the depth of the groove changing depending on the rotation angle;
a plurality of cam members disposed in each of the plurality of annular cam grooves;
a plurality of cam storage holes formed in the valve body and holding the cam member so as to be freely protrusive and retractable in a direction substantially perpendicular to the axis;
The cam member is moved in and out of the cam storage hole by the rotational movement of the annular cam groove when the cylindrical operating member is rotated around the axis, and is converted into a movement in a direction substantially perpendicular to the axis;
The fourth conversion means is
The valve body includes a conical member coaxially connected to the valve body, and in conjunction with the protrusion and retraction of a plurality of cam members with respect to the conical outer circumferential surface of the conical member, movement in a direction approximately perpendicular to the axis of the cam member is caused The valve body is opened and closed by converting it into a movement in the direction of opening and closing.

(基本的な効果)
本発明のリリーフ弁装置によれば、弁ボディの外側に配置した筒状操作部材の操作は、筒状操作部材の筒の中心軸に沿う軸方向の移動操作(スライド操作)又は軸回りの回転操作であり、従来の操作レバーのように大きな操作スペースを必要とすることなく操作可能であり、所定の機器として例えば流水検知装置の2次側と1次側の間に配置して配管接続しても、リリーフ弁装置を含めた流水検知装置の配置スペースを拡大する必要がない。
(basic effect)
According to the relief valve device of the present invention, the operation of the cylindrical operating member disposed outside the valve body can be performed by moving the cylindrical operating member in the axial direction along the central axis of the cylinder (slide operation) or rotating the cylindrical operating member around the axis. It can be operated without requiring a large operation space like a conventional control lever, and can be placed between the secondary and primary sides of a flowing water detection device as a designated device, for example, and connected to the piping. However, there is no need to expand the space for installing the water flow detection device including the relief valve device.

(詰り解消手段1の効果)
また、詰り解消手段1は、筒状操作部材の軸方向の移動操作による動きを軸に略直交する方向の動き動きに変換し、更に、弁体を開閉する方向の動きに変換して弁体に作用させることで、簡単に弁体を開閉してごみなどの異物を除去して詰りを解消できる。
(Effect of clogging removal means 1)
Further, the clogging eliminating means 1 converts the movement of the cylindrical operating member in the axial direction into a movement in a direction substantially perpendicular to the axis, and further converts the movement in the direction of opening and closing the valve body into a movement in the direction of opening and closing the valve body. By acting on the valve, you can easily open and close the valve body to remove foreign matter such as dirt and eliminate clogging.

(第1変換手段と第2変換手段の効果)
また、第1変換手段は、筒状操作部材の軸方向の移動操作による動きを環状テーパー溝、ボール部材及びボール収納孔により、ボール部材の軸に略直交する方向の動きに変換し、更に、第2変換手段は、ボール部材と錐状部材により、ボール部材の軸に略直交する方向の動きを弁体を開閉する方向の動き(ここでは軸方向の動き)に変換して弁体に作用させることができる。このため筒状操作部材を軸方向に往復移動する操作により、簡単に繰返し弁体を開閉してごみなどの異物を除去して詰りを解消できる。
(Effects of first conversion means and second conversion means)
The first converting means converts the movement of the cylindrical operating member in the axial direction into a movement in a direction substantially perpendicular to the axis of the ball member, using the annular tapered groove, the ball member, and the ball storage hole; The second conversion means uses the ball member and the conical member to convert the movement of the ball member in a direction substantially perpendicular to the axis into movement in the direction of opening and closing the valve body (in this case, movement in the axial direction) and acts on the valve body. can be done. Therefore, by reciprocating the cylindrical operating member in the axial direction, it is possible to easily open and close the valve body repeatedly to remove foreign matter such as dust and eliminate clogging.

(詰り解消手段2の効果)
また、詰り解消手段は、筒状操作部材の軸周りの回転操作による回転方向の動きを軸に略直交する方向の動きに変換し、更に、弁体を開閉する方向の動きに変換して弁体に作用させることで、弁体を開閉してごみなどの異物を除去し、簡単に詰りを解消できる。
(Effect of clogging removal means 2)
Further, the clogging eliminating means converts the rotational movement of the cylindrical operating member around the axis into a movement in a direction substantially perpendicular to the axis, and further converts it into movement in the direction of opening and closing the valve body. By acting on the body, the valve body can be opened and closed to remove foreign matter such as dirt and easily clear blockages.

(第3変換手段と第4変換手段の効果)
また、第3変換手段は、筒状操作部材の軸周りの回転操作による回転方向の動きを環状カム溝、カム部材及びカム収納孔により、カム部材の軸に略直交する方向の動きに変換し、更に、カム部材と弁体と同軸に連結された錐状部材により、カム部材の軸に略直交する方向の動きを、弁体を開閉する方向の動き(ここでは軸方向の動き)に変換して弁体に作用させることで、筒状操作部材を軸回りに往復回転する操作により、繰返し弁体を開閉してごみなどの異物を除去し、簡単に詰りを解消できる。
(Effects of third conversion means and fourth conversion means)
Further, the third conversion means converts movement in the rotational direction due to rotational operation of the cylindrical operating member around the axis into movement in a direction substantially perpendicular to the axis of the cam member using the annular cam groove, the cam member, and the cam storage hole. Furthermore, a conical member coaxially connected to the cam member and the valve body converts movement in a direction approximately perpendicular to the axis of the cam member into movement in the direction of opening and closing the valve body (in this case, movement in the axial direction). By acting on the valve body, by reciprocating the cylindrical operating member around the axis, the valve body can be repeatedly opened and closed to remove foreign matter such as dust, and clogging can be easily cleared.

流水検知装置を備えたスプリンクラー消火設備の分岐管系統の概略を示した説明図Explanatory diagram showing the outline of the branch pipe system of sprinkler fire extinguishing equipment equipped with a running water detection device 本発明によるリリーフ弁装置の第1実施形態を軸方向の縦断面で示した説明図An explanatory diagram showing a first embodiment of the relief valve device according to the present invention in an axial longitudinal section 図2のa-a矢視の横断面を示した説明図An explanatory diagram showing a cross section taken along the a-a arrow in FIG. リリーフ弁装置に設けた詰り解消手段の動作を示した説明図Explanatory diagram showing the operation of the clogging removal means provided in the relief valve device 図2の筒状操作部材を軸方向に移動操作して弁体を開放した状態を示した説明図An explanatory diagram showing a state in which the valve body is opened by moving the cylindrical operating member in the axial direction in Fig. 2 図2の第1実施形態の変形例を軸方向の断面で示した説明図An explanatory diagram showing a modification of the first embodiment in FIG. 2 in an axial cross section 本発明によるリリーフ弁装置の第2実施形態を軸方向の縦断面で示した説明図An explanatory diagram showing a second embodiment of the relief valve device according to the present invention in an axial longitudinal section 図7のb-b矢視の横断面を示した説明図An explanatory diagram showing a cross section taken along arrow bb in FIG. 図8の筒状操作部材を取り出して横断面で示した説明図An explanatory diagram showing a cross section of the cylindrical operating member of FIG. 8 taken out. 図7の筒状操作部材を初期位置に戻す初期位置復帰手段の構造を示した説明図であり、図10(A)に図7のc-c矢視の横断面を示し、図10(B)に図10(A)のd-d矢視の縦断面を直線展開して示し、図10(C)に筒状操作部材の回転操作によりコイルバネを圧縮する動作状態を示す。FIG. 10(A) is an explanatory view showing the structure of an initial position return means for returning the cylindrical operating member to the initial position in FIG. 7; FIG. ) shows a linearly developed longitudinal section taken along the line dd in FIG. 10(A), and FIG. 10(C) shows an operating state in which the coil spring is compressed by rotation of the cylindrical operating member. 図7の筒状操作部材を軸回りに回転操作して弁体を開放した状態を軸方向の縦断面で示した説明図An explanatory diagram showing a state in which the valve body is opened by rotating the cylindrical operating member around the axis in Fig. 7 in an axial longitudinal section. 図11のe-e矢視の横断面を示した説明図Explanatory diagram showing a cross section taken along the line ee in FIG. 11

[スプリンクラー消火設備の概要]
図1に示すように、スプリンクラー消火設備は、消火ポンプ等の加圧送水装置からの給水本管11に例えば建物の階別に制御弁15及び流水検知装置10を介して分岐管12が接続され、2次側にスプリンクラーヘッド14を接続し、末端には末端試験弁16とオリフィス18を接続している。
[Summary of sprinkler fire extinguishing equipment]
As shown in FIG. 1, in the sprinkler fire extinguishing equipment, a branch pipe 12 is connected to a main water supply pipe 11 from a pressurized water supply device such as a fire pump, for example, via a control valve 15 and a water flow detection device 10 for each floor of a building. A sprinkler head 14 is connected to the secondary side, and an end test valve 16 and an orifice 18 are connected to the end.

流水検知装置10は、周知のように、火災時にスプリンクラーヘッド14が作動して消火用水を散布すると圧力スイッチ20がオンして流水検知信号を出力する。 As is well known, in the running water detection device 10, when the sprinkler head 14 is activated to spray fire extinguishing water in the event of a fire, the pressure switch 20 is turned on and outputs a running water detection signal.

流水検知装置10には仕切弁22を介して2次側圧力計24が接続され、また仕切弁26を介して1次側圧力計28が接続され、仕切弁22,26の間に本発明のリリーフ弁装置30を接続し、リリーフ弁装置30の1次側に排水弁27を接続している。 A secondary side pressure gauge 24 is connected to the flowing water detection device 10 through a gate valve 22, and a primary side pressure gauge 28 is connected through a gate valve 26. A relief valve device 30 is connected, and a drain valve 27 is connected to the primary side of the relief valve device 30.

[リリーフ弁装置の第1実施形態]
(リリーフ弁装置の構造)
図2に示すように、本実施形態のリリーフ弁装置30は、1次側と2次側の弁ホディ32,34を有し、それぞれ2次側ポート31と1次側ポート35が開口している。
[First embodiment of relief valve device]
(Structure of relief valve device)
As shown in FIG. 2, the relief valve device 30 of this embodiment has primary side and secondary side valve bodies 32, 34, and the secondary side port 31 and the primary side port 35 are open, respectively. There is.

弁ボディ32,34の内部には弁座シート52を配置し、スプリング54により弁体46を弁座シート52に押圧し、常時は閉鎖位置に保持している。 A valve seat 52 is disposed inside the valve bodies 32, 34, and a spring 54 presses the valve body 46 against the valve seat 52 to normally hold it in the closed position.

弁体46に加わる2次側圧力P2とその受圧面積で決まる開放力をF2とし、弁体46に加わる1次側圧力P1とその受圧面積で決まる閉鎖力をF1とし、スプリング54の押圧力をF3とすると、
F2≦(F1+F3)
のとき弁体46は弁座シート52に当接して閉鎖している。
The opening force determined by the secondary pressure P2 applied to the valve body 46 and its pressure receiving area is F2, the closing force determined by the primary pressure P1 applied to the valve body 46 and its pressure receiving area is F1, and the pressing force of the spring 54 is If it is F3,
F2≦(F1+F3)
At this time, the valve body 46 is in contact with the valve seat 52 and closed.

また、2次側圧力P2が上昇して
F2>(F1+F3)
の関係になると、弁体46が開放し、上昇した2次側圧力P2を低下させる。
In addition, the secondary pressure P2 increases and F2>(F1+F3)
When the relationship is reached, the valve body 46 opens and lowers the increased secondary side pressure P2.

(詰り解消手段の構造)
図2及び図3に示すように、筒状操作部材36は弁ホディ32の下側の外周段部55に上側から軸方向に所定範囲(ストローク)で移動自在に嵌め込まれ、上端内側を止め環62で抜け止めし、下端内側にスプリング56を組込み、図示の初期位置を保持している。
(Structure of clogging removal means)
As shown in FIGS. 2 and 3, the cylindrical operating member 36 is fitted into the outer circumferential step 55 on the lower side of the valve body 32 so as to be movable from above in the axial direction within a predetermined range (stroke). 62 to prevent it from coming off, and a spring 56 is installed inside the lower end to maintain the initial position shown.

本実施形態の詰り解消手段は、筒状操作部材36の、軸方向の移動操作による軸方向の動きを、軸に略直交する方向の動きに変換する第1変換手段と、第1変換手段で変換した軸に略直交する方向の動きを、弁体46を開閉する方向の動きに変換する第2変換手段で構成される。 The clogging eliminating means of this embodiment includes a first converting means that converts an axial movement of the cylindrical operating member 36 into a movement in a direction substantially perpendicular to the axis; It is comprised of a second conversion means that converts the movement in the direction substantially perpendicular to the converted axis into the movement in the direction of opening and closing the valve body 46.

第1変換手段は、筒状操作部材36の内周面に形成され、軸心側にテーパー面が開いた環状テーパー溝38、環状テーパー溝38に配置された例えば4個のボール部材40、弁ボディ32に形成され環状テーパー溝38に配置されたボール部材40の各々を軸に略直交する方向に出没自在に保持するボール収納孔50で構成され、筒状操作部材36を軸方向に往復させる移動操作をしたときの環状テーパー溝38の動きによりボール部材40を弁ボディ32に設けたボール収納孔50から出没させて軸に略直交する方向の動きに変換する。 The first converting means includes an annular tapered groove 38 formed on the inner circumferential surface of the cylindrical operating member 36 and having a tapered surface open toward the axis, for example four ball members 40 disposed in the annular tapered groove 38, and a valve. It is composed of a ball storage hole 50 that holds each of the ball members 40 formed in the body 32 and arranged in the annular tapered groove 38 so as to be freely retractable in a direction substantially perpendicular to the axis, and allows the cylindrical operating member 36 to reciprocate in the axial direction. The movement of the annular tapered groove 38 when the movement operation is performed causes the ball member 40 to move in and out of the ball storage hole 50 provided in the valve body 32, converting the ball member 40 into movement in a direction substantially perpendicular to the axis.

第2変換手段は、弁軸48を介して弁体46と連結された錐状部材42を備え、錐状部材42は錐状外周面44を持ち、軸方向に複数の連通穴43を形成し、弁体46と一体に軸方向で移動自在に組み込んでいる。錐状部材42の錐状外周面44には、図2に示す初期位置において、ボール部材40が周囲を囲むように当接しており、第1変換手段で変換されたボール部材40の出没する動き、即ちボール部材40の軸に略直交する方向即ち軸方向の動きを、弁体46を開閉する方向即ち軸方向の動きに変換して弁体46を開閉する。 The second conversion means includes a conical member 42 connected to a valve body 46 via a valve shaft 48, the conical member 42 having a conical outer peripheral surface 44, and forming a plurality of communication holes 43 in the axial direction. , is integrated with the valve body 46 so as to be freely movable in the axial direction. At the initial position shown in FIG. 2, the ball member 40 is in contact with the conical outer circumferential surface 44 of the conical member 42 so as to surround the circumference, and the movement of the ball member 40 to appear and retract as converted by the first converting means That is, the valve body 46 is opened and closed by converting the movement of the ball member 40 in a direction substantially perpendicular to the axis, that is, the axial direction, into a direction that opens and closes the valve body 46, that is, a movement in the axial direction.

即ち、ボール部材40が環状テーパー溝38から出没することにより、ボール部材40が錐状外周面44に対し当接(押圧)と非当接を繰り返す動きにより弁体46の開閉方向の動きが生じ、これにより弁体46を開閉する。 That is, as the ball member 40 moves in and out of the annular tapered groove 38, the valve body 46 moves in the opening/closing direction due to the movement of the ball member 40 repeatedly coming into contact (pressing) and not contacting the conical outer peripheral surface 44. , thereby opening and closing the valve body 46.

(詰り解消手段の動作機能)
図4に示すように、筒状操作部材36を点線で示す筒状操作部材36’となる位置に軸方向で移動操作したときの軸方向の移動量をL1とする。これにより環状テーパー溝38も移動し、ボール収納孔50に収納しているボール部材40は軸心に向かい、点線で示すボール部材40’の位置に移動し、このときの軸45に略直交する方向の移動量をL2とする。
(Operating function of clogging removal means)
As shown in FIG. 4, the amount of movement in the axial direction when the cylindrical operating member 36 is axially moved to a position where it becomes the cylindrical operating member 36' indicated by the dotted line is defined as L1. As a result, the annular tapered groove 38 also moves, and the ball member 40 stored in the ball storage hole 50 moves toward the axis and moves to the position of the ball member 40' shown by the dotted line, which is substantially perpendicular to the axis 45 at this time. Let L2 be the amount of movement in the direction.

ボール部材40がボール部材40’の位置に移動すると、錐状部材42は錐状外周面44に対するボール部材40の当接(押圧)を受けて軸方向に移動し、図2に示すよう弁軸48で連結した弁体46を開放方向に移動し、このときの錐状部材42の軸方向の移動量をL3とする。 When the ball member 40 moves to the position of the ball member 40', the conical member 42 moves in the axial direction due to the contact (pressure) of the ball member 40 against the conical outer peripheral surface 44, and as shown in FIG. The valve body 46 connected at 48 is moved in the opening direction, and the amount of axial movement of the conical member 42 at this time is defined as L3.

ここで、環状テーパー溝38の上側テーパー面の軸方向に対するテーパー角をθ1とすると、筒状操作部材36の移動量L1とボール部材40の移動量L2との間には
L2/L1=tanθ1
の関係がある。
Here, if the taper angle of the upper tapered surface of the annular tapered groove 38 with respect to the axial direction is θ1, then the distance between the movement amount L1 of the cylindrical operating member 36 and the movement amount L2 of the ball member 40 is L2/L1=tanθ1.
There is a relationship between

また、錐状部材42の錐状外周面44のテーパー角をθ2とすると、ボール部材40の移動量L2と錐状部材42の移動量L3との間には
L2/L3=tanθ2
の関係がある。
Further, if the taper angle of the conical outer circumferential surface 44 of the conical member 42 is θ2, then the distance between the movement amount L2 of the ball member 40 and the movement amount L3 of the conical member 42 is L2/L3=tanθ2.
There is a relationship between

このため筒状操作部材36の移動操作による移動量L1と錐状部材42の移動量L3、即ち弁体46の開放側への移動量L3との間には
L3=(tanθ1/tanθ2)・L1=K・L1
の関係がある。
Therefore, between the amount of movement L1 caused by the movement operation of the cylindrical operating member 36 and the amount of movement L3 of the conical member 42, that is, the amount of movement L3 of the valve body 46 toward the open side, there is a difference L3=(tanθ1/tanθ2)・L1 =K・L1
There is a relationship between

ここで、(tanθ1/tanθ2)は所定の定数Kであり、θ1>θ2とすることで1以上となり、その結果、筒状操作部材36の軸方向の移動量をK倍に拡大して弁体46を開放側に動かすことができる。 Here, (tan θ1/tan θ2) is a predetermined constant K, which becomes 1 or more by setting θ1>θ2, and as a result, the axial movement amount of the cylindrical operating member 36 is expanded K times and the valve body 46 can be moved to the open side.

また、筒状操作部材36の肉厚は、例えば弁ボディ32,34の肉厚と同程度とし、筒状操作部材36の外径を比較的小さくすることができ、特許文献2の操作レバーの操作に要するスペースに比べて省スペースで操作可能としている。更に、操作部材としてレバーを使用する場合に比べ、誤って操作部材に物を衝突させて破損するといった可能性も低減する。 Further, the wall thickness of the cylindrical operating member 36 can be made to be approximately the same as the wall thickness of the valve bodies 32 and 34, for example, and the outer diameter of the cylindrical operating member 36 can be made relatively small. It can be operated in a smaller space compared to the space required for operation. Furthermore, compared to the case where a lever is used as the operating member, the possibility of accidentally colliding with an object and damaging the operating member is reduced.

(詰り解消操作)
スプリンクラー消火設備の定期点検時等には、図1に示した仕切弁26を閉じ、排水弁27を開いた状態で、図5に示すように、リリーフ弁装置30の筒状操作部材36を矢印Aに示すように軸方向に往復させる移動操作を行う。
(Clog clearing operation)
During periodic inspection of sprinkler fire extinguishing equipment, etc., with the gate valve 26 shown in FIG. 1 closed and the drain valve 27 opened, the cylindrical operating member 36 of the relief valve device 30 is moved by the arrow as shown in FIG. As shown in A, a movement operation is performed to reciprocate in the axial direction.

この操作により環状テーパー溝38、ボール部材40、錐状部材42を介して弁体46が開閉され、弁体46を開いたときに2次側から1次側に消火用水が流れ、弁体46の2次側に付着しているごみなどの異物を排出して詰りを解消する。 By this operation, the valve body 46 is opened and closed via the annular tapered groove 38, the ball member 40, and the conical member 42, and when the valve body 46 is opened, fire extinguishing water flows from the secondary side to the primary side, and the valve body 46 is opened and closed. Eliminate blockages by discharging foreign matter such as dust that has adhered to the secondary side of the

[第1実施形態の変形例]
図6に示すように、本実施形態のリリーフ弁装置30は、2次側の弁ボディ32aの2次側ポート31aの内部開口端に弁座シート52aが配置され、スプリング54aにより弁体46aを弁座シート52aに押圧し、常時は閉鎖位置に保持している。
[Modification of the first embodiment]
As shown in FIG. 6, in the relief valve device 30 of this embodiment, a valve seat 52a is arranged at the internal opening end of the secondary side port 31a of the secondary side valve body 32a, and the valve body 46a is held by a spring 54a. It is pressed against the valve seat 52a and is normally held in the closed position.

1次側の弁ボディ34aの外周の外側には筒状操作部材36aが軸方向に所定範囲(ストローク)で移動自在に嵌め込まれ、上端内側を止め環62で抜け止めし、下端内側の段付き部にスプリング56を組込み、図示の初期位置を保持している。本実施形態の詰り解消手段の具体的構成は、図2の実施形態と同じになることから、同一符号を付して説明は省略する。 A cylindrical operating member 36a is fitted on the outside of the outer periphery of the primary side valve body 34a so as to be movable in the axial direction within a predetermined range (stroke), and is prevented from coming off on the inside of the upper end with a stop ring 62, and with a stepped inside of the lower end. A spring 56 is installed in the section to maintain the initial position shown. Since the specific configuration of the clogging eliminating means of this embodiment is the same as that of the embodiment of FIG. 2, the same reference numerals are given and the description thereof will be omitted.

本実施形態においても、筒状操作部材36を往復させる移動操作を行うと、環状テーパー溝38、ボール部材40、錐状部材42を介して弁体46aが開閉され、弁体46aを開いたときに2次側から1次側に消火用水が流れ、弁体46aの2次側に付着しているごみなどの異物を排出して詰りを解消する。 In this embodiment as well, when the cylindrical operating member 36 is moved back and forth, the valve body 46a is opened and closed via the annular tapered groove 38, the ball member 40, and the conical member 42, and when the valve body 46a is opened. Fire extinguishing water flows from the secondary side to the primary side to discharge foreign matter such as dust adhering to the secondary side of the valve body 46a and eliminate the blockage.

[リリーフ弁装置の第2実施形態]
(詰り解消手段の構造)
図7及び図8に示すように、本実施形態のリリーフ弁装置30は、弁ボディ32の外周の外側に配置した筒状操作部材36を軸周りに往復させる回転操作により弁体46を開閉し、ごみ等の異物を排出して詰りを解消する詰り解消手段を設けたことを特徴とする。
[Second embodiment of relief valve device]
(Structure of clogging removal means)
As shown in FIGS. 7 and 8, the relief valve device 30 of this embodiment opens and closes the valve body 46 by rotating a cylindrical operating member 36 disposed outside the outer periphery of the valve body 32 to reciprocate around the axis. The device is characterized by being provided with a clogging eliminating means for discharging foreign matter such as dust to eliminate clogging.

筒状操作部材36は、弁ホディ32の外周下側の鍔部74の上部に軸方向に嵌め込まれ、上端内側を止め環62の係合で抜け止めし、弁ボディ32の外側に回転自在に配置される。また、後述する初期位置復帰手段で筒状操作部材36を図示の初期位置に保持している。 The cylindrical operating member 36 is fitted in the upper part of the flange 74 on the lower side of the outer periphery of the valve body 32 in the axial direction, and is prevented from coming off by the engagement of the retaining ring 62 on the inner side of the upper end, so that the cylindrical operating member 36 can freely rotate to the outside of the valve body 32. Placed. Further, the cylindrical operating member 36 is held at the initial position shown in the figure by an initial position return means, which will be described later.

本実施形態の詰り解消手段は、筒状操作部材36の、軸周りの回転操作による回転方向の動きを、軸に略直交する方向の動きに変換する第3変換手段と、第3変換手段で変換した軸に略直交する方向の動きを、弁体46を開閉する方向の動きに変換する第4変換手段で構成される。 The clogging eliminating means of the present embodiment includes a third converting means that converts the movement of the cylindrical operating member 36 in the rotational direction due to the rotational operation around the axis into a movement in a direction substantially perpendicular to the axis; It is constituted by a fourth converting means that converts a movement in a direction substantially perpendicular to the converted axis into a movement in a direction to open and close the valve body 46.

第3変換手段は、筒状操作部材36の内周面の例えば4箇所に分けて所定角度単位に形成され環状カム溝70を備え、環状カム溝70の深さは、図9に示すように、初期位置で最も深く、回転角の変化に応じて溝の深さが浅くなるカム溝形状としている。環状カム溝70にはカム部材として機能するボール部材40が配置され、ボール部材40はカム収納孔として機能する、弁ボディ32に設けたボール収納孔50に出没自在に収納されている。 The third converting means is provided with an annular cam groove 70 that is formed at predetermined angular units at four locations on the inner circumferential surface of the cylindrical operating member 36, and the depth of the annular cam groove 70 is as shown in FIG. The cam groove has a shape that is deepest at the initial position and becomes shallower as the rotation angle changes. A ball member 40 functioning as a cam member is disposed in the annular cam groove 70, and the ball member 40 is retractably housed in a ball housing hole 50 provided in the valve body 32 that functions as a cam housing hole.

これにより第3変換手段は、筒状操作部材36を軸周りで往復させる回転操作に伴う環状カム溝70の回転方向の動きにより、ボール収納孔50からボール部材40を出没させて軸に略直交する方向の動きに変換する。 Thereby, the third conversion means causes the ball member 40 to protrude and retract from the ball storage hole 50 by the movement of the annular cam groove 70 in the rotational direction accompanying the rotational operation of reciprocating the cylindrical operating member 36 around the axis, so that the ball member 40 is moved approximately perpendicularly to the axis. Convert it into a movement in the direction you want to move.

第4変換手段は、弁軸48を介して弁体46と同軸に連結された錐状部材42を備え、錐状部材42は錐状外周面44を持ち、また、軸方向に複数の連通穴43を形成し、弁体46と一体に軸方向に移動自在に組み込んでいる。 The fourth conversion means includes a conical member 42 coaxially connected to the valve body 46 via a valve shaft 48, the conical member 42 having a conical outer peripheral surface 44, and a plurality of communicating holes in the axial direction. 43, and is incorporated integrally with the valve body 46 so as to be freely movable in the axial direction.

錐状部材42の錐状外周面44にはボール部材40が周囲を囲むように初期位置において当接しており、第1実施形態同様に錐状外周面44に対するボール部材40の出没に連動して、ボール部材40の軸に略直交する方向の動きを、弁体46を開閉する方向の動きに変換して弁体46を開閉する。 The ball member 40 is in contact with the conical outer circumferential surface 44 of the conical member 42 in an initial position so as to surround it, and as in the first embodiment, the ball member 40 is moved in and out of the conical outer circumferential surface 44 in conjunction with the movement of the ball member 40 into and out of the conical outer circumferential surface 44. The valve body 46 is opened and closed by converting the movement of the ball member 40 in a direction substantially perpendicular to the axis into a movement in the direction of opening and closing the valve body 46 .

(筒状操作部材の初期位置復帰手段)
図10(A)に示すように、図7に示した弁ボディ32の鍔部74には例えば120°間隔で形成したボール溝77にボール76を鍔面74aから僅かに突出して嵌合しており、筒状操作部材36の下端面36bを鍔面74aの3個所に配置したボール76の点接触により低摩擦で軸45を中心に所定角度範囲で回転自在に支持している。
(Means for returning the cylindrical operating member to its initial position)
As shown in FIG. 10A, balls 76 are fitted into ball grooves 77 formed at 120° intervals in the flange 74 of the valve body 32 shown in FIG. The lower end surface 36b of the cylindrical operating member 36 is rotatably supported within a predetermined angular range about the shaft 45 with low friction by point contact of balls 76 arranged at three locations on the collar surface 74a.

また、周方向でボール76の配置位置の間となる鍔面74aの3か所に分けてバネ収納溝78が形成され、コイルバネ80が組み込まれている。バネ収納溝78に対しては、図10(B)に示すように、筒状操作部材36の下端面36bに起立固定したピン82の先端が挿し込まれ、コイルバネ80の一端に当接している。 Further, spring storage grooves 78 are formed at three locations on the collar surface 74a between the positions where the balls 76 are disposed in the circumferential direction, and a coil spring 80 is incorporated therein. As shown in FIG. 10(B), the tip of a pin 82 fixed upright on the lower end surface 36b of the cylindrical operating member 36 is inserted into the spring storage groove 78, and is in contact with one end of the coil spring 80. .

図10(C)に示すように、操作者が筒状操作部材36を矢印Cの方向に回転操作すると、ピン82の移動によりコイルバネ80が圧縮され、筒状操作部材36を初期位置に戻す復元力が発生し、操作者が手を離せばコイルバネ80に押されて筒状操作部材36は初期位置に戻される。 As shown in FIG. 10(C), when the operator rotates the cylindrical operating member 36 in the direction of arrow C, the coil spring 80 is compressed by the movement of the pin 82, and the cylindrical operating member 36 is restored to its initial position. When a force is generated and the operator releases his/her hand, the cylindrical operating member 36 is pushed by the coil spring 80 and returned to its initial position.

なお、図10の初期位置復帰手段は、これに限定されず、筒状操作部材36の回転操作に伴い初期位置に戻す方向の復元力を発生するものであれば、適宜の構造が含まれる。また、筒状操作部材36の初期位置復帰手段は必須ではなく、例えば筒状操作部材36を初期位置(弁体閉鎖位置)と回転位置(弁体開放位置)とに位置決めする構造を設け、筒状操作部材36を往復させる回転操作を行って弁体46を開閉させても良い。 Note that the initial position return means in FIG. 10 is not limited to this, and includes any suitable structure as long as it generates a restoring force in the direction of returning to the initial position as the cylindrical operating member 36 is rotated. Further, the means for returning the cylindrical operating member 36 to its initial position is not essential; for example, a structure for positioning the cylindrical operating member 36 between an initial position (valve body closed position) and a rotational position (valve body open position) is provided, The valve body 46 may be opened and closed by performing a rotation operation in which the shaped operation member 36 is reciprocated.

(詰り解消操作)
図7及び図8に示す筒状操作部材36の初期状態にあっては、ボール部材40は環状カム溝70の最も深い初期位置にあり、弁体46はスプリング54により弁座シート52に押圧され、閉鎖状態となっている。
(Clog clearing operation)
In the initial state of the cylindrical operating member 36 shown in FIGS. 7 and 8, the ball member 40 is at the deepest initial position of the annular cam groove 70, and the valve body 46 is pressed against the valve seat 52 by the spring 54. , is in a closed state.

この状態で図12の矢印Bに示すように、筒状操作部材36を軸回りに往復させる回転操作を行うと、環状カム溝70の回転方向の動きにより、ボール収納孔50からボール部材40を出没させて軸45に略直交する方向の動きに変換し、ボール部材40の出没する動きに連動して、錐状部材42は図11に示すように、ボール部材40の軸に略直交する方向の動きを、弁体46を開閉する方向の動きに変換し、弁体46を開閉させる。 In this state, when a rotational operation is performed to reciprocate the cylindrical operating member 36 around the axis as shown by arrow B in FIG. 11, the conical member 42 moves in a direction substantially perpendicular to the axis of the ball member 40, as shown in FIG. This movement is converted into a movement in the direction of opening and closing the valve body 46, thereby causing the valve body 46 to open and close.

定期点検等の際には、図1の仕切弁26を閉じ、排水弁27を開いていることから、弁体46を開いたときに2次側から1次側に消火用水が流れ、弁体46の2次側に付着しているごみなどの異物を排出して詰りを解消する。 During periodic inspections, etc., the gate valve 26 shown in Fig. 1 is closed and the drain valve 27 is opened, so when the valve body 46 is opened, fire extinguishing water flows from the secondary side to the primary side, and the valve body Remove foreign matter such as dust adhering to the secondary side of 46 to clear the blockage.

なお、本実施形態では、カム部材としてボール部材40を使用しているが、これに限定されず、適宜の形状のカム部材を含む。 In this embodiment, the ball member 40 is used as the cam member, but the present invention is not limited to this, and includes cam members having an appropriate shape.

[本発明の変形例]
(流水検知装置)
上記の実施形態は、スプリンクラー消火設備の流水検知装置に設けるリリーフ弁装置を例にとっているが、これに限定されず、泡消火設備の流水検知装置に設けるリリーフ弁装置であっても良く、更に、水系媒体の供給系統に設けられる適宜の機器に設けるリリーフ弁装置を対象とする。
[Modification of the present invention]
(Flowing water detection device)
The above embodiment takes as an example a relief valve device installed in a flowing water detection device of sprinkler fire extinguishing equipment, but is not limited to this, and may be a relief valve device installed in a flowing water detection device of foam fire extinguishing equipment, and further, This applies to relief valve devices installed in appropriate equipment installed in aqueous medium supply systems.

(その他)
また本発明はその目的と利点を損なうことのない適宜の変形を含み、更に上記の実施形態に示した数値による限定は受けない。
(others)
Further, the present invention includes appropriate modifications without impairing its objects and advantages, and is not limited by the numerical values shown in the above embodiments.

10:流水検知装置
12:分岐管
14:スプリンクラーヘッド
22,26:仕切弁
27:排水弁
30:リリーフ弁装置
32,32a,34,34a:弁ボディ
36,36a:筒状操作部材
38:環状テーパー溝
40:ボール部材
42:錐状部材
44:錐状外周面
46,46a:弁体
50:ボール収納孔
52,52a:弁座シート
70:環状カム溝

10: Flowing water detection device 12: Branch pipe 14: Sprinkler heads 22, 26: Gate valve 27: Drain valve 30: Relief valve device 32, 32a, 34, 34a: Valve body 36, 36a: Cylindrical operating member 38: Annular taper Groove 40: Ball member 42: Conical member 44: Conical outer peripheral surface 46, 46a: Valve body 50: Ball storage hole 52, 52a: Valve seat seat 70: Annular cam groove

Claims (5)

所定の機器の2次側圧力が上昇したときに弁体の開放により2次側を1次側に連通して上昇した前記2次側圧力を低下させるリリーフ弁装置であって
前記1次側と前記2次側とが直線状に配置された略筒状の弁ボディと、
前記弁ボディの外側に配置された筒状操作部材と、
前記筒状操作部材の所定の操作により前記弁体を開閉して詰り物質を除去する詰り解消手段と、
を備えたことを特徴とするリリーフ弁装置。
A relief valve device that connects the secondary side to the primary side by opening a valve body to reduce the increased secondary side pressure when the secondary side pressure of a predetermined device increases,
a substantially cylindrical valve body in which the primary side and the secondary side are arranged linearly;
a cylindrical operating member disposed on the outer peripheral side of the valve body;
clogging removal means for opening and closing the valve body to remove clogging substances by a predetermined operation of the cylindrical operating member ;
A relief valve device comprising:
請求項1記載のリリーフ弁装置に於いて、
前記詰り解消手段は、
前記筒状操作部材の、軸方向の移動操作による前記軸方向の動きを前記軸方向に略直交する方向の動きに変換する第1変換手段と、
前記第1変換手段で変換した前記軸方向に略直交する方向の動きを、前記弁体を開閉する方向の動きに変換する第2変換手段と、
を備えたことを特徴とするリリーフ弁装置。
In the relief valve device according to claim 1,
The clogging removal means is
a first converting means for converting the axial movement of the cylindrical operating member into a movement in a direction substantially orthogonal to the axial direction ;
a second converting means that converts the movement in a direction substantially perpendicular to the axial direction converted by the first converting means into a movement in the direction of opening and closing the valve body;
A relief valve device comprising:
請求項2記載のリリーフ弁装置に於いて、
前記第1変換手段は、
前記弁ボディの外側に前記軸方向に移動自在に配置された前記筒状操作部材の内周面に形成され、軸心側にテーパー面が開いた環状テーパー溝と、
前記環状テーパー溝に配置された複数のボール部材と、
前記弁ボディに形成され、前記複数のボール部材の各々を前記軸に略直交する方向に出没自在に保持する複数のボール収納孔と、
を備え、前記筒状操作部材を前記軸方向に移動操作したときの前記環状テーパー溝の動きにより前記ボール部材を前記ボール収納孔から出没させて前記軸に略直交する方向の動きに変換し、
前記第2変換手段は、
前記弁体と同軸に連結された錐状部材を備え、当該錐状部材の錐状外周面に対する前記複数のボール部材の出没に連動して、前記ボール部材の前記軸に略直交する方向の動きを前記弁体を開閉する方向の動きに変換して前記弁体を開閉させる、
ことを特徴とするリリーフ弁装置。
In the relief valve device according to claim 2,
The first conversion means includes:
an annular tapered groove formed on the inner circumferential surface of the cylindrical operating member disposed outside the valve body so as to be movable in the axial direction, and having a tapered surface open toward the axial center;
a plurality of ball members arranged in the annular tapered groove;
a plurality of ball storage holes formed in the valve body and holding each of the plurality of ball members so as to be freely retractable in a direction substantially perpendicular to the axis;
The movement of the annular tapered groove when the cylindrical operating member is moved in the axial direction causes the ball member to move in and out of the ball storage hole, converting the ball member into a movement in a direction substantially perpendicular to the axis;
The second conversion means:
a conical member coaxially connected to the valve body, and movement of the ball member in a direction substantially perpendicular to the axis in conjunction with the protrusion and retraction of the plurality of ball members with respect to the conical outer circumferential surface of the conical member; converting the motion into a movement in the direction of opening and closing the valve body to open and close the valve body,
A relief valve device characterized by:
請求項1記載のリリーフ弁装置に於いて、
前記詰り解消手段は、
前記筒状操作部材の軸周りの回転操作による回転方向の動きを軸方向に略直交する方向の動きに変換する第3変換手段と、
前記第3変換手段で変換した前記軸方向に略直交する方向の動きを、前記弁体を開閉する方向の動きに変換する第4変換手段と、
を備えたことを特徴とするリリーフ弁装置。
In the relief valve device according to claim 1,
The clogging removal means is
a third converting means for converting a movement of the cylindrical operating member in a rotational direction due to a rotational operation around the axis into a movement in a direction substantially perpendicular to the axial direction ;
a fourth converting means for converting the movement in a direction substantially orthogonal to the axial direction converted by the third converting means into a movement in a direction for opening and closing the valve body;
A relief valve device comprising:
請求項4記載のリリーフ弁装置に於いて、
前記第3変換手段は、
前記弁ボディの外側に前記軸回りに回転自在に配置された前記筒状操作部材の内周面に所定角度単位に形成され、回転角に応じて溝の深さが変化する複数の環状カム溝と、
前記複数の環状カム溝の各々に配置された複数のカム部材と、
前記弁ボディに形成され、前記カム部材を前記軸に略直交する方向に出没自在に保持する複数のカム収納孔と、
を備え、前記筒状操作部材を前記軸回りに回転操作したときの前記環状カム溝の回転方向の動きにより、前記カム収納孔から前記カム部材を出没させて前記軸に略直交する方向の動きに変換し、
前記第4変換手段は、
前記弁体と同軸に連結された錐状部材を備え、当該錐状部材の錐状外周面に対する前記複数のカム部材の出没に連動して、前記カム部材の前記軸に略直交する方向の動きを前記弁体を開閉する方向の動きに変換して前記弁体を開閉させることを特徴とするリリーフ弁装置。
In the relief valve device according to claim 4,
The third conversion means is
a plurality of annular cam grooves formed in predetermined angular units on the inner circumferential surface of the cylindrical operating member disposed on the outside of the valve body so as to be rotatable around the axis, the depth of the groove changing depending on the rotation angle; and,
a plurality of cam members disposed in each of the plurality of annular cam grooves;
a plurality of cam storage holes formed in the valve body and holding the cam member so as to be freely protrusive and retractable in a direction substantially perpendicular to the axis;
The movement of the annular cam groove in the rotational direction when the cylindrical operating member is rotated about the axis causes the cam member to move in and out of the cam storage hole in a direction substantially perpendicular to the axis. Convert to
The fourth conversion means is
a conical member coaxially connected to the valve body, and movement of the cam member in a direction substantially perpendicular to the axis in conjunction with the protrusion and retraction of the plurality of cam members with respect to the conical outer circumferential surface of the conical member; A relief valve device characterized in that the valve body is opened and closed by converting the movement into a movement in the direction of opening and closing the valve body.
JP2019153322A 2019-08-26 2019-08-26 relief valve device Active JP7361534B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019153322A JP7361534B2 (en) 2019-08-26 2019-08-26 relief valve device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019153322A JP7361534B2 (en) 2019-08-26 2019-08-26 relief valve device

Publications (2)

Publication Number Publication Date
JP2021032337A JP2021032337A (en) 2021-03-01
JP7361534B2 true JP7361534B2 (en) 2023-10-16

Family

ID=74677248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019153322A Active JP7361534B2 (en) 2019-08-26 2019-08-26 relief valve device

Country Status (1)

Country Link
JP (1) JP7361534B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240831A (en) 1999-02-23 2000-09-08 Kane Kogyo Kk Forced opening and closing valve device for relief valve
JP2008096646A (en) 2006-10-11 2008-04-24 Kao Corp Manufacturing method of emulsified resin liquid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5055628U (en) * 1973-09-18 1975-05-26
JPH0729345Y2 (en) * 1991-12-04 1995-07-05 ブイエスイー バクウムテヒニーク ゲーエムベーハー Micro flow control valve
CN101611254A (en) * 2007-02-06 2009-12-23 株式会社富士金 Fluid control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240831A (en) 1999-02-23 2000-09-08 Kane Kogyo Kk Forced opening and closing valve device for relief valve
JP2008096646A (en) 2006-10-11 2008-04-24 Kao Corp Manufacturing method of emulsified resin liquid

Also Published As

Publication number Publication date
JP2021032337A (en) 2021-03-01

Similar Documents

Publication Publication Date Title
CA2656568C (en) Dry pipe/deluge valve for automatic sprinkler systems
TWI503144B (en) Water detection device
US3182951A (en) Pivoted valve
US4350321A (en) Quick coupling device for pressurized fluid conduits
US6216963B1 (en) Device for regulating speed of deployment of sprinkler heads in preactive sprinkler systems
JP7361534B2 (en) relief valve device
JP2004003589A (en) Rotary clamp
JP2016500012A (en) Flow control valve for handheld bidet shower
JP3324967B2 (en) Flash valve triple seal handle packing
US3879771A (en) Hydraulic ram
JP6443923B2 (en) Water spray head
JP2007327584A (en) Flowing water detecting device
JP4796898B2 (en) Flowing water detector
US3918486A (en) Device for transmitting a pressure fluid from a stationary source to a rotating shaft
JP6732251B2 (en) Fire hydrant valve
JP3156866U (en) A spray tube for fire water spray
US10047871B2 (en) Valve device capable of maintaining safe pressure of pressure vessel
CN201034199Y (en) Pigging ball valve screw-thread stressed top arrangement
RU116777U1 (en) LOCKING AND STARTING DEVICE
KR102605813B1 (en) Branch tee valve opened by fluid flow and system including same
US6098664A (en) Pipeline plug
JP2007143918A (en) Check valve for firefighting equipment, and check valve unit for firefighting equipment
KR101138650B1 (en) Alarm valve
KR20110018749A (en) Alarm valve
KR102571846B1 (en) Pneumatic cylinder device with retaining valve

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20220714

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230524

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20230524

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230628

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: 20230920

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20231003

R150 Certificate of patent or registration of utility model

Ref document number: 7361534

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150