JPH0331905Y2 - - Google Patents

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Publication number
JPH0331905Y2
JPH0331905Y2 JP15120287U JP15120287U JPH0331905Y2 JP H0331905 Y2 JPH0331905 Y2 JP H0331905Y2 JP 15120287 U JP15120287 U JP 15120287U JP 15120287 U JP15120287 U JP 15120287U JP H0331905 Y2 JPH0331905 Y2 JP H0331905Y2
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JP
Japan
Prior art keywords
relief valve
pressure
piston
valve seat
hole
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
Application number
JP15120287U
Other languages
Japanese (ja)
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JPS6455386U (en
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Filing date
Publication date
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Priority to JP15120287U priority Critical patent/JPH0331905Y2/ja
Publication of JPS6455386U publication Critical patent/JPS6455386U/ja
Application granted granted Critical
Publication of JPH0331905Y2 publication Critical patent/JPH0331905Y2/ja
Expired legal-status Critical Current

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  • Multiple-Way Valves (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は、水栓、特に弁要素を固定デイスク
と、これに摺動自在に重ね合わせられる可動デイ
スクとで構成する水栓におけるウオーターハンマ
ー防止構造に関する。
[Detailed description of the invention] (Field of industrial application) The present invention is designed to prevent water hammer in faucets, especially in faucets whose valve element is composed of a fixed disk and a movable disk that is slidably superimposed on the fixed disk. Regarding structure.

(従来の技術) 一般に水栓は、湯水混合栓と単水栓とを問わず
開閉弁を急激に開弁すると、1次側の圧力が急上
昇して上流側の配管や機器を損傷することがあ
る。
(Prior art) In general, when the on-off valve of a faucet is suddenly opened, regardless of whether it is a mixed faucet or a single faucet, the pressure on the primary side increases rapidly, which can damage piping and equipment on the upstream side. be.

特に弁要素を固定デイスクと、これに摺動自在
に重ね合わせられた可動デイスクとで構成する水
栓にあつては、特に閉弁時、弁の閉止が急速に行
われるためウオーターハンマーが起り易い。
Water hammer is particularly likely to occur in faucets whose valve element consists of a fixed disk and a movable disk that is slidably superimposed on the fixed disk because the valve closes rapidly when the valve is closed. .

また弁の急閉以外に例えば給湯元,給水元の圧
力変動などにより1次側の圧力が上昇することも
あり、特に水栓が湯水混合栓の場合、湯側のみの
使用により湯側の熱が水側に伝わり、水側の逆止
弁と水用弁との間の閉鎖空間内の水の熱膨張によ
り1次側の圧力が上昇することがある。
In addition to the sudden closing of the valve, the pressure on the primary side may also rise due to pressure fluctuations at the hot water source or water supply source, for example, and especially if the faucet is a hot/cold mixer faucet, if only the hot water side is used, the pressure on the hot water side will increase. is transmitted to the water side, and the pressure on the primary side may increase due to thermal expansion of water in the closed space between the water side check valve and the water valve.

然る処、従来の水栓には弁の急閉によるウオー
ターハンマーも、弁の急閉以外の原因による1次
側の圧力の上昇も、共に防止する機構を備えたも
のはない。
However, none of the conventional water faucets has a mechanism that prevents both water hammer caused by sudden closing of the valve and rise in pressure on the primary side due to causes other than sudden closing of the valve.

(考案が解決しようとする問題点) 本考案が解決しようとする問題点は、1次側に
生ずる急激な圧力上昇に対しては、上昇圧力を2
次側に逃すことにより、緩慢な圧力上昇に対して
は1次側の容積を拡大することにより対応するこ
とである。
(Problem to be solved by the invention) The problem to be solved by the invention is to reduce the rising pressure to 2.
By venting to the next side, a slow pressure rise can be dealt with by expanding the volume on the primary side.

(問題点を解決するための手段) 上記問題点を解決するために本考案が講ずる技
術的手段は、弁要素を固定デイスクと、これに摺
動自在に重ね合わせられる可動デイスクとで構成
する水栓において、水栓本体の1次側と2次側と
を区画する隔壁部分に逃し弁孔を開設してその1
次側開口縁に逃し弁座を形成し、上記逃し弁座の
1次側には逃し弁座に対向して設けられ、バネに
より常時逃し弁座側に付勢されると共に1次側内
の圧力を受けて、該圧力が上記バネのバネ力を越
えると逃し弁座から遠ざかるように作動するピス
トンと、該ピストンと一体に進退し、逃し弁座に
接離する逃し弁体を配備し、上記ピストンには一
端において逃し弁体を貫通する透孔を介して2次
側に連絡する凹孔を軸方向に形成して該凹孔の他
端を小通路を介して1次側に連絡する圧力室に連
通せしめると共に凹孔内には上記バネにより常時
圧力室側に付勢されると共に圧力室内の圧力を受
けて該圧力が上記バネのバネ力を越えると圧力室
から遠ざかる方向に作動する補助ピストンを摺動
自在に内装するものである。
(Means for Solving the Problems) The technical means taken by the present invention to solve the above problems is that the valve element is composed of a fixed disk and a movable disk that is slidably superimposed on the fixed disk. In a faucet, a relief valve hole is provided in the partition part that separates the primary side and the secondary side of the faucet body.
A relief valve seat is formed on the next side opening edge, and is provided on the primary side of the relief valve seat opposite to the relief valve seat, and is always biased toward the relief valve seat side by a spring, and the inside of the primary side is A piston that receives pressure and operates to move away from the relief valve seat when the pressure exceeds the spring force of the spring, and a relief valve body that moves forward and backward together with the piston and approaches and separates from the relief valve seat, The piston is formed with a recessed hole in the axial direction that communicates with the secondary side via a through hole penetrating the relief valve body at one end, and the other end of the recessed hole communicates with the primary side via a small passage. It communicates with the pressure chamber, and inside the concave hole is always biased toward the pressure chamber by the spring, and when the pressure inside the pressure chamber exceeds the spring force of the spring, it operates in a direction away from the pressure chamber. The auxiliary piston is slidably installed inside.

(作用) 而して、本考案の上記技術的手段によれば、開
閉弁が急閉されて1次側の圧力が急上昇するとそ
の上昇圧力によりピストンが逃し弁座から遠ざか
るように作動し、このピストンに連係する逃し弁
体が後退して逃し弁座から離れるので、1次側の
上昇圧力は逃し弁孔を介して2次側へ逃げる。
(Function) According to the above technical means of the present invention, when the on-off valve is suddenly closed and the pressure on the primary side rises rapidly, the piston moves away from the relief valve seat due to the increased pressure. Since the relief valve body linked to the piston retreats and leaves the relief valve seat, the increased pressure on the primary side escapes to the secondary side via the relief valve hole.

また、給湯元,給水元の圧力変動や1次側水の
熱膨張により1次側の圧力が緩慢に上昇するとき
には、1次側と連通する圧力室の圧力が上昇し、
その上昇圧力を受けて補助ピストンが凹所内に進
入する方向に作動し、圧力室、ひいては1次側の
容積を増大する。
In addition, when the pressure on the primary side rises slowly due to pressure fluctuations at the hot water source and water supply source or thermal expansion of the primary water, the pressure in the pressure chamber communicating with the primary side increases,
In response to the increased pressure, the auxiliary piston operates in the direction of entering the recess, increasing the volume of the pressure chamber and, ultimately, the primary side.

(実施例) 以下、本発明の実施例を図に基づいて説明す
る。
(Example) Hereinafter, an example of the present invention will be described based on the drawings.

この実施例は、水栓がシングルレバー式湯水混
合栓で、開閉弁Aの弁要素が、本体1の湯流路1
5に連絡する湯用弁孔16、水流路17に連絡す
る水用弁孔18及び混合水流路19に連絡する混
合水流出孔20を穿設した固定デイスク13と、
この固定デイスク13に摺動自在に重ね合わせら
れ、固定デイスク13との摺接面に湯用及び/又
は水用弁孔16,18を混合水流出孔20に連絡
する通路21を凹設した可動デイスク14とで構
成され、レバーハンドル22を操作して可動デイ
スク14を固定デイスク13上で摺動させ、湯流
路15,水流路17から混合水流路19への湯,
水の流動を開始、停止させると共に湯と水の混合
水流路19への流入割合を調節するようになつて
いる。
In this embodiment, the faucet is a single-lever type hot water mixing faucet, and the valve element of the on-off valve A is connected to the hot water flow path 1 of the main body 1.
5, a fixed disk 13 having a hot water valve hole 16 connected to the water flow path 17, a water valve hole 18 connected to the water flow path 17, and a mixed water outlet hole 20 connected to the mixed water flow path 19;
A movable movable member which is slidably superimposed on the fixed disk 13 and has a passage 21 recessed in the sliding contact surface with the fixed disk 13 to connect the hot water and/or water valve holes 16, 18 to the mixed water outflow hole 20. The movable disk 14 is slid on the fixed disk 13 by operating the lever handle 22 to flow hot water from the hot water flow path 15 and the water flow path 17 to the mixed water flow path 19.
It starts and stops the flow of water, and also adjusts the ratio of hot water and water flowing into the mixed water flow path 19.

即ち、この実施例においては湯流路15と水流
路17が夫々開閉弁Aの1次側aを構成し、混合
水流路19が2次側bを構成している。
That is, in this embodiment, the hot water flow path 15 and the water flow path 17 each constitute the primary side a of the on-off valve A, and the mixed water flow path 19 constitutes the secondary side b.

従つて、以下の説明において1次側aは湯流路
15と水流路17の双方を包含する。
Therefore, in the following description, the primary side a includes both the hot water flow path 15 and the water flow path 17.

上記1次側a相互及び1次側aと2次側bは水
栓本体1に内設した隔壁2により区画されてお
り、1次側aと2次側bとを区画する隔壁2には
上記開閉弁Aを介さずに1次側aと2次側bを連
絡する通孔23が穿設される。
The above-mentioned primary sides a and the primary side a and the secondary side b are divided by a partition wall 2 installed inside the faucet body 1, and the partition wall 2 that partitions the primary side a and the secondary side b is A through hole 23 is bored to communicate the primary side a and the secondary side b without using the on-off valve A.

一方、水栓本体1には上記通孔23と同軸の開
口24が1次側aに開設され、該開口24と通孔
23とに亘つて逃し弁Bを内装する円筒状のカー
トリツジケース25が装着される。
On the other hand, the faucet main body 1 has an opening 24 coaxial with the through hole 23 on the primary side a, and a cylindrical cartridge case 25 in which a relief valve B is installed between the opening 24 and the through hole 23. is installed.

カートリツジケース25は一端を開放すると共
に他端には段部26を介して逃し弁孔3を開設
し、段部26内面側には逃し弁孔3の孔縁に沿つ
て逃し弁座4を突出形成する。
The cartridge case 25 has one end open, and the other end has a relief valve hole 3 through a step 26, and a relief valve seat 4 is provided on the inner surface of the step 26 along the edge of the relief valve hole 3. Form a protrusion.

また、カートリツジケース25は逃し弁座4近
傍の周面に流入孔27を開穿すると共にこの流入
孔27より若干開放端側の周面に小孔28を開穿
する。
Further, the cartridge case 25 has an inflow hole 27 formed in the circumferential surface near the relief valve seat 4, and a small hole 28 formed in the circumferential surface slightly closer to the open end than the inflow hole 27.

そして、このカートリツジケース25は、内部
にピストン6と、逃し弁体7と、補助ピストン1
2と、上記ピストン6と補助ピストン12を相互
に反対方向に付勢するバネ5を収容配備し、逃し
弁座4側を先にして開口24から本体1内の1次
側aに挿入し、先端を隔壁2の通孔23にOリン
グ29を介して嵌合すると共に開放端を蓋30で
塞ぐ。
This cartridge case 25 has a piston 6, a relief valve body 7, and an auxiliary piston 1 inside.
2, and a spring 5 that urges the piston 6 and the auxiliary piston 12 in opposite directions, and is inserted into the primary side a in the main body 1 through the opening 24 with the relief valve seat 4 side first, The tip is fitted into the through hole 23 of the partition wall 2 via an O-ring 29, and the open end is closed with a lid 30.

上記蓋30は水栓本体1の蓋をも兼ねるもので
あり、キヤツプ状に形成され、その内周面により
カートリツジケース25に螺着し、外周面により
本体1の開口24に螺着する。これによりカート
リツジケース25後端は水栓本体1の開口24に
固定される。
The lid 30 also serves as a lid for the faucet main body 1, and is formed into a cap shape, and is screwed onto the cartridge case 25 by its inner peripheral surface and into the opening 24 of the main body 1 by its outer peripheral surface. As a result, the rear end of the cartridge case 25 is fixed to the opening 24 of the faucet body 1.

ピストン6は、カートリツジケース25内周面
に対して摺動自在に設けられ、逃し弁座4に対向
する端面には逃し弁体7を設ける。
The piston 6 is slidably provided on the inner peripheral surface of the cartridge case 25, and a relief valve body 7 is provided on the end surface facing the relief valve seat 4.

上記逃し弁体7は逃し弁座4に対応して逃し弁
Bを構成するもので、逃し弁座4に対向するピス
トン6端面にシートパツキン31を取りつけるこ
とによりピストン6と一体に形成する。
The relief valve body 7 constitutes a relief valve B corresponding to the relief valve seat 4, and is formed integrally with the piston 6 by attaching a seat packing 31 to the end face of the piston 6 facing the relief valve seat 4.

またピストン6は、逃し弁体7を設けた端面と
は反対側の端面から軸方向中途部にかけて凹孔9
を凹設すると共にこの凹孔9底部から逃し弁体7
前面中央に貫ける透孔8を穿設し、該透孔8には
貫通孔付ビス32を螺着してビス頭部33を逃し
弁体7前面に突出せしめる。
Further, the piston 6 has a concave hole 9 extending from the end surface opposite to the end surface where the relief valve body 7 is provided to a midway point in the axial direction.
is recessed, and the valve body 7 is released from the bottom of this recessed hole 9.
A through hole 8 is drilled in the center of the front surface, and a screw 32 with a through hole is screwed into the through hole 8 so that the screw head 33 is released and protrudes to the front surface of the valve body 7.

上記ピストン6は逃し弁体7が逃し弁座4に着
座した状態で、後端、即ち凹孔9開放端がカート
リツジケース25に螺着した蓋30との間に若干
の間隙を有する。従つてピストン6はその間隙分
後方へ摺動することができ、後方へ摺動すること
により逃し弁Bを開弁する。
With the relief valve body 7 seated on the relief valve seat 4, the piston 6 has a slight gap between its rear end, that is, the open end of the concave hole 9, and the lid 30 screwed onto the cartridge case 25. Therefore, the piston 6 can slide rearward by that gap, and by sliding rearward, the relief valve B is opened.

尚、上記貫通孔付ビス32の頭部33は逃し弁
Bの全開時においても逃し弁孔3内に挿入状とな
す。
The head 33 of the through-hole screw 32 is inserted into the relief valve hole 3 even when the relief valve B is fully open.

また、ピストン6は、カートリツジケース25
の流入孔27と小孔28の間に位置する部分の周
面に凹溝34を形成して該凹溝34にシールパツ
キン35を流入孔27側に凹の状態を嵌着すると
共に凹溝34より後方の外径をカートリツジケー
ス25内径より僅かに小経に形成して、両者間に
できる僅かな間隙により小孔28から流入する水
を、ピストン6後方の間隙に導く小通路10を形
成する。
Further, the piston 6 is connected to the cartridge case 25.
A concave groove 34 is formed on the circumferential surface of a portion located between the inlet hole 27 and the small hole 28, and a seal packing 35 is fitted into the concave groove 34 in a concave state toward the inlet hole 27 side. The outer diameter of the rear side is formed to be slightly smaller than the inner diameter of the cartridge case 25, and a small passage 10 is formed to guide water flowing in from the small hole 28 to the gap behind the piston 6 through a small gap between the two. do.

補助ピストン12はピストン6の凹孔9内周面
に対してOリング36を介して摺動自在に設けら
れて凹孔9の開口部を塞ぎ凹孔9内に空室37を
形成する。
The auxiliary piston 12 is slidably provided on the inner peripheral surface of the concave hole 9 of the piston 6 via an O-ring 36, and closes the opening of the concave hole 9 to form a cavity 37 within the concave hole 9.

この補助ピストン12の背面、即ち凹孔9の開
放開口部に臨む面には十字状の凹溝39が形成さ
れる。
A cross-shaped groove 39 is formed on the back surface of the auxiliary piston 12, that is, on the surface facing the open opening of the cavity 9.

バネ5はピストン6の凹孔9底部と、補助ピス
トン12の上記凹孔9底部に対向する面とにわた
つて弾装し、逃し弁体7を逃し弁座4に圧接せし
める方向にピストン6を付勢すると共に補助ピス
トン12を蓋30に圧接せしめる方向に付勢す
る。
The spring 5 is elastically loaded between the bottom of the concave hole 9 of the piston 6 and the surface of the auxiliary piston 12 facing the bottom of the concave hole 9, and moves the piston 6 in a direction that presses the relief valve body 7 against the relief valve seat 4. At the same time, the auxiliary piston 12 is urged in a direction to press the lid 30.

上記、補助ピストン12は、バネ5に付勢され
て蓋30に圧接した状態においても背面の凹溝3
9と蓋30との間には隙間が有り、この隙間はピ
ストン6の開口端面と蓋30との間に形成される
隙間と共に小通路10,小孔28を介して1次側
aと連絡する圧力室11を形成する。
Even when the auxiliary piston 12 is in pressure contact with the lid 30 under pressure from the spring 5,
There is a gap between the piston 9 and the lid 30, and this gap, together with the gap formed between the open end surface of the piston 6 and the lid 30, communicates with the primary side a via the small passage 10 and the small hole 28. A pressure chamber 11 is formed.

また、補助ピストン12背面は蓋30に圧接さ
れた状態においても、凹溝39により蓋30に密
着はせず、両者間には上記圧力室11に流入した
水が廻り込むことができるようになつている。
Further, even when the back surface of the auxiliary piston 12 is in pressure contact with the lid 30, it does not come into close contact with the lid 30 due to the groove 39, and the water that has flowed into the pressure chamber 11 can circulate between the two. ing.

斯る水栓は開閉弁Aの開弁状態、即ち1次側a
から湯又は水、若しくはその双方が開閉弁Aを経
て2次側bに流れている状態において、レバーハ
ンドル22を操作して可動デイスク14を摺動さ
せ、開閉弁Aを閉弁、即ち1次側aから2次側b
への流体の流動を停止すると、1次側aの圧力が
瞬間的に上昇するが、その上昇圧力はカートリツ
ジケース25の流入孔27を介してピストン6及
び逃し弁体7前面に直ちに作用する。
In such a faucet, the on-off valve A is in the open state, that is, the primary side a
In a state where hot water or water, or both, is flowing through the on-off valve A to the secondary side b, operate the lever handle 22 to slide the movable disk 14 to close the on-off valve A, that is, to close the on-off valve A. From side a to secondary side b
When the flow of fluid is stopped, the pressure on the primary side a increases instantaneously, but this increased pressure immediately acts on the front surface of the piston 6 and the relief valve body 7 through the inflow hole 27 of the cartridge case 25. .

一方、1次側aは圧力室11を介してピストン
6及び補助ピストン12背後とを連絡している
が、両者を連絡するのが、カートリツジケース2
5に穿設した小孔28と、カートリツジケース2
5内周面とピストン6外周面との間の僅かな隙間
により形成される小通路10であるため、1次側
aの圧力上昇が圧力室11内に伝わるには若干時
間を要する。
On the other hand, the primary side a communicates with the rear of the piston 6 and the auxiliary piston 12 via the pressure chamber 11, but the cartridge case 2 communicates between the two.
5 and the cartridge case 2
Since the small passage 10 is formed by a small gap between the inner circumferential surface of the piston 5 and the outer circumferential surface of the piston 6, it takes some time for the pressure increase on the primary side a to be transmitted into the pressure chamber 11.

従つて、開閉弁Aの閉弁により1次側aの圧力
が急上昇した瞬間ピストン6の前面側に作用する
圧力と背面側に作用する圧力には差が出来、この
圧力差によりピストン6はバネ5の力に抗して後
退し、これと一体に設けられた逃し弁体7が逃し
弁座4から離脱して逃し弁Bが開弁する。(第3
図) 従つて、1次側aの流体が逃し弁Bを通つて2
次側bに放出され、1次側aの圧力は低下する。
Therefore, at the moment when the pressure on the primary side a suddenly increases due to the closing of the on-off valve A, there is a difference between the pressure acting on the front side of the piston 6 and the pressure acting on the back side, and this pressure difference causes the piston 6 to act as a spring. 5, the relief valve element 7, which is provided integrally with the relief valve body 7, separates from the relief valve seat 4, and the relief valve B opens. (3rd
Figure) Therefore, the fluid on the primary side a passes through the relief valve B and
It is released to the downstream side b, and the pressure on the primary side a decreases.

即ち、開閉弁Aの閉弁により瞬間的に急上昇す
る1次側aの圧力は、逃し弁Bを介して直ちに2
次側bへ逃がされる。
In other words, the pressure on the primary side a, which momentarily increases rapidly due to the closing of the on-off valve A, immediately decreases to 2 through the relief valve B.
It escapes to the next side b.

上記2次側bへの圧力放出により、1次側aの
圧力が静圧に戻るとピストン6はバネ5の力によ
り前進し、逃し弁体7が逃し弁座4に当接して逃
し弁Bは閉弁する。
When the pressure on the primary side a returns to static pressure due to the pressure released to the secondary side b, the piston 6 moves forward by the force of the spring 5, and the relief valve element 7 comes into contact with the relief valve seat 4, causing the relief valve B is closed.

また、給湯元,給水元の圧力変動あるいは、開
閉弁Aと逆止弁Cとの間の密閉空間中の水の熱膨
張などによつて1次側の圧力が上昇する場合に
は、圧力上昇は緩慢に行われ、水が小孔28,小
通路10より圧力室11内に流入り、ピストン6
の前面側と背面側にはとりたてていうほどの圧力
差は生じないので、ピストン6は作動せず、逃し
弁Bは開弁しないが、1次側a圧力がバネ5の力
を越えると圧力室11内の圧力により1次圧がバ
ランスする位置まで補助ピストン12が空室37
内に押し込まれ、空室37の容積が減少する分圧
力室11の容積が拡張する(第4図)。
In addition, if the pressure on the primary side increases due to pressure fluctuations at the hot water supply source, water supply source, or thermal expansion of water in the closed space between on-off valve A and check valve C, the pressure will increase. is carried out slowly, water flows into the pressure chamber 11 through the small hole 28 and the small passage 10, and the piston 6
Since there is no significant pressure difference between the front side and the back side of the The auxiliary piston 12 moves to the empty chamber 37 until the primary pressure is balanced by the pressure inside the piston 11.
The pressure chamber 11 is pushed inward, and the volume of the pressure chamber 11 expands by the amount that the volume of the empty chamber 37 decreases (FIG. 4).

また、第1図においてDは開閉弁の2次側b、
即ち混合水流路19に設けられ、混合水の供給対
象をバス又はシヤワーに選択的に切換えるバス・
シヤワー切換弁、Eは止水弁である。
In addition, in Fig. 1, D is the secondary side b of the on-off valve,
That is, there is a bus/shower installed in the mixed water flow path 19 that selectively switches the mixed water supply target to a bath or a shower.
Shower switching valve, E is water stop valve.

(効果) 本考案は上記の構成であるので、以下の利点を
有する。
(Effects) Since the present invention has the above configuration, it has the following advantages.

(1) 開閉弁の急閉等により1次側に急激な圧力上
昇が生じると、逃し弁が開弁して1次側の上昇
圧力を2次側へ放出するので、ウオーターハン
マーの発生を防止することができる。
(1) When a sudden pressure rise occurs on the primary side due to sudden closing of the on-off valve, etc., the relief valve opens and releases the increased pressure on the primary side to the secondary side, thus preventing the occurrence of water hammer. can do.

従つて、ウオーターハンマーにより上流側の
配管や機器に損害を与える恐れがない。
Therefore, there is no risk of damage to upstream piping or equipment due to water hammer.

(2) 何らかの要因により1次側に緩やかな圧力上
昇が生じても補助ピストンがピストンの凹孔内
に押し込まれるだけで逃し弁は開弁しない。
(2) Even if a gradual pressure rise occurs on the primary side for some reason, the auxiliary piston will simply be pushed into the concave hole of the piston and the relief valve will not open.

従つて、静圧がいくらでもよいので汎用性が
ある。
Therefore, it is versatile because any static pressure can be used.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の一実施例を示す水栓の要部を
縦断して示す正面図、第2図は要部を横断して示
す平面図、第3図,第4図は作動状態を示す要部
の拡大断面図で、第3図は1次側の上昇圧力を2
次側に逃す状態を、第4図は1次側の上昇圧力を
圧力室の容積拡大により吸収する状態を夫々示し
ている。 1:本体、2:隔壁、3:逃し弁孔、4:逃し
弁座、5:バネ、6:ピストン、7:逃し弁体、
8:透孔、9:凹孔、10:小通路、11:圧力
室、12:補助ピストン、13:固定デイスク、
14:可動デイスク、a:1次側、b:2次側。
Fig. 1 is a front view showing the main parts of a faucet according to an embodiment of the present invention, Fig. 2 is a cross-sectional plan view showing the main parts, and Figs. 3 and 4 show the operating state. Figure 3 is an enlarged sectional view of the main parts shown, and Figure 3 shows the rising pressure on the primary side at 2
FIG. 4 shows a state in which the pressure is released to the next side, and a state in which the increased pressure on the primary side is absorbed by expanding the volume of the pressure chamber. 1: Main body, 2: Partition wall, 3: Relief valve hole, 4: Relief valve seat, 5: Spring, 6: Piston, 7: Relief valve body,
8: Through hole, 9: Recessed hole, 10: Small passage, 11: Pressure chamber, 12: Auxiliary piston, 13: Fixed disk,
14: Movable disk, a: primary side, b: secondary side.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 弁要素を固定デイスクと、これに摺動自在に重
ね合わせられる可動デイスクとで構成する水栓に
おいて、水栓全体の1次側と2次側とを区画する
隔壁部分に逃し弁孔を開設してその1次側開口縁
に逃し弁座を形成し、上記逃し弁座の1次側には
逃し弁座に対向して設けられ、バネにより常時逃
し弁座側に付勢されると共に1次側内の圧力を受
けて、該圧力が上記バネのバネ力を越えると逃し
弁座から遠ざかるように作動するピストンと、該
ピストンと一体に進退し、逃し弁座に接離する逃
し弁体を配備し、上記ピストンには一端において
逃し弁体を貫通する透孔を介して2次側に連絡す
る凹孔を軸方向に形成して該凹孔の他端を小通路
を介して1次側に連絡する圧力室に連通せしめる
と共に凹孔内には上記バネにより常時圧力室側に
付勢されると共に圧力室内の圧力を受けて該圧力
が上記バネのバネ力を越えると圧力室から遠ざか
る方向に作動する補助ピストンを摺動自在に内装
してなる水栓。
In a faucet whose valve element is composed of a fixed disk and a movable disk that is slidably superimposed on the fixed disk, a relief valve hole is provided in the partition wall that separates the primary side and the secondary side of the entire faucet. A relief valve seat is formed on the primary side opening edge of the relief valve seat, and the relief valve seat is provided on the primary side of the relief valve seat facing the relief valve seat, and is always biased toward the relief valve seat side by a spring. A piston that receives internal pressure and moves away from the relief valve seat when the pressure exceeds the spring force of the spring, and a relief valve body that moves forward and backward together with the piston and approaches and separates from the relief valve seat. The piston is provided with a recessed hole in the axial direction that communicates with the secondary side through a through hole passing through the relief valve body at one end, and the other end of the recessed hole is connected to the primary side through a small passage. The concave hole is always biased toward the pressure chamber by the spring and moves away from the pressure chamber when the pressure in the pressure chamber exceeds the spring force of the spring. A faucet with a slidable auxiliary piston that operates automatically.
JP15120287U 1987-09-30 1987-09-30 Expired JPH0331905Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15120287U JPH0331905Y2 (en) 1987-09-30 1987-09-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15120287U JPH0331905Y2 (en) 1987-09-30 1987-09-30

Publications (2)

Publication Number Publication Date
JPS6455386U JPS6455386U (en) 1989-04-05
JPH0331905Y2 true JPH0331905Y2 (en) 1991-07-05

Family

ID=31425037

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15120287U Expired JPH0331905Y2 (en) 1987-09-30 1987-09-30

Country Status (1)

Country Link
JP (1) JPH0331905Y2 (en)

Also Published As

Publication number Publication date
JPS6455386U (en) 1989-04-05

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