JPS62162121A - Pressure regulating valve - Google Patents

Abstract

PURPOSE:To use a device at hydraulic pressure under optimum condition by providing a hydraulic pressure chamber and a spring, and controlling by the pressure of secondary side without using the pressure of primary side that varies largely. CONSTITUTION:Pressure of running water having pressure P1 of primary side is reduced through a communication hole 6 and the water is flowed to a secondary side piping 4 as pressure P2 of secondary side. When the secondary side pressure P2 rises, excessive pressure P2' goes to a hydraulic pressure chamber 7 from a through hole 12, and a flange part 10 is pushed up while resisting a spring 8. When maximum pressure is applied, a regulating valve 9 is positioned at a position shown in the figure to close the communication hole 6, and flowing in from the communication hole 6 is stopped. When secondary side pressure P2 drops, excessive pressure P2' becomes nil, and accordingly, the flange part 10 is pushed down by the spring 8, and the regulating valve 9 also goes down. Consequently, the communication hole 6 opens and restricted water flows from the primary side to secondary side. Water is flowed out from a liquid tank 3a through a water passage 3 so as to flow a fixed quantity of water.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は水道管に取付けて使用される水道圧の圧力調整
弁に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pressure regulating valve for water pressure that is used by being attached to a water pipe.

［従来技術］ 水道圧の圧力調整装置としては、給水側の配管、即ち一
次側配管に対して吐出又は流出側配管、即ち二次側配管
を接続し、これら配管の継目部分に圧力調整弁が設けら
れ、−次側において区々な水道圧を二次側においてほぼ
一定の水道圧にするために使用されている。この圧力調
整弁は、−次側配管内の水道圧を利用して弁の開閉状態
を調節するように構成されており、二次側配管内の水圧
は全く無関係に行われる。[Prior art] As a pressure regulating device for water pressure, a discharge or outflow side piping, that is, a secondary side piping is connected to a water supply side piping, that is, a primary side piping, and a pressure regulating valve is installed at the joint part of these piping. It is used to convert the variable water pressure on the downstream side into a substantially constant water pressure on the secondary side. This pressure regulating valve is configured to adjust the opening/closing state of the valve using the water pressure in the downstream piping, and is completely independent of the water pressure in the secondary piping.

［発明が解決しようとする問題点］ 前記従来例の圧力調整装置は、−次側配管の水道圧に合
せて一旦調整してしまうと二次側の水道圧がどのように
変動しても、おかまいなしになり、実質的な水道圧調整
にはならない。即ち、二次側にお１ノる蛇口を−ばいに
開いた時も少し開いた時でも一次側から二次側に入る水
道圧には変りがないので、蛇口を−ばいに開いた時には
二次側の水道圧が減じて吐出する水が跳ねないが、蛇口
を少し聞いて吐出を絞った時に、二次側内部の水圧が上
り吐水する水が付勢されて水の飛び跳ねが大きくなり、
実質的な水道圧調整にはならないと云う問題点を有して
いる。[Problems to be Solved by the Invention] The pressure regulating device of the above-mentioned conventional example, once adjusted according to the water pressure of the downstream side piping, no matter how the water pressure of the secondary side changes, This will result in no hesitation and will not result in actual water pressure adjustment. In other words, there is no difference in the water pressure entering the secondary side from the primary side even when the faucet on the secondary side is opened completely or slightly. The water pressure on the next side decreases and the discharged water does not splash, but when you turn on the faucet and throttle the discharge, the water pressure inside the secondary side increases and the water discharged is energized and the water splashes more.
The problem is that it does not effectively adjust water pressure.

そして又、−次側の水道圧を利用する関係上、バイパス
等を形成し、そのバイパスを介して調整弁が動作するよ
うにしなければならないので、弁箱内部の構造が複雑化
され、製造が困難になると云う問題点も備えている。Furthermore, in order to utilize the water pressure on the downstream side, a bypass must be formed and the regulating valve must be operated via the bypass, which complicates the structure inside the valve box and makes manufacturing difficult. There are also problems that can make it difficult.

Ｅ問題点を解決するための手段］ 前記問題点を解決するための具体的手段として本発明は
、−次側配管と二次側配管とを連通孔を介して連設し、
該連通孔に臨ませて調整弁体を配設し、該調整弁体は軸
部どフランジ部とを備えると共に調整弁体の下部から軸
部に至り且つ軸部で間口する通水路を設け、この調整弁
体のフランジ部を二次側配管の取付側に設けた水圧室に
収納し、該水圧室においてバネ圧により押し下げられる
方向にイ」勢され、二次側配管の水圧が水圧室のフラン
ジ部に掛り、この水圧とバネ圧とのバランスにより調整
弁体が上下動して、前記連通孔の面積を無段に変更し、
それにより一次側配管から二次側配管への流入圧を制限
するように構成したことを特徴とする圧力調整弁を提供
するものであって、二次側配管からの吐出圧を常に一定
にしたものである。Means for Solving Problem E] As a specific means for solving the above-mentioned problem, the present invention provides the following steps:
A regulating valve body is disposed facing the communication hole, the regulating valve body is provided with a flange portion at the shaft portion, and a water passageway extending from the lower part of the regulating valve body to the shaft portion and opening at the shaft portion, The flange part of this regulating valve body is housed in a water pressure chamber provided on the installation side of the secondary side piping, and in the water pressure chamber, it is pushed downward by spring pressure, and the water pressure of the secondary side piping is applied to the water pressure chamber. applied to the flange portion, and the adjustment valve body moves up and down due to the balance between this water pressure and spring pressure, and the area of the communication hole is changed steplessly,
The present invention provides a pressure regulating valve that is configured to limit the inflow pressure from the primary piping to the secondary piping, thereby always keeping the discharge pressure from the secondary piping constant. It is something.

［実施例］ 次に本発明を図示の実施例により更に詳しく説明すると
、１は圧力調整弁であり、該圧力調整弁は一次側配管２
、その取付部３、二次側配管４、その取付部５及び連通
孔６を備えている。ぞして二次側配管４が取付けられる
側に水圧室７が設けられ、該水圧室にはバネ８と調整弁
体９につながるフランジ部１０が収納され、調整弁体９
はバネ８により押し下げられるように付勢されている。[Example] Next, the present invention will be explained in more detail with reference to the illustrated embodiment. 1 is a pressure regulating valve, and the pressure regulating valve is connected to the primary side piping 2.
, a mounting portion 3 thereof, a secondary pipe 4, a mounting portion 5 thereof, and a communication hole 6. A water pressure chamber 7 is provided on the side where the secondary piping 4 is attached, and a spring 8 and a flange portion 10 connected to the regulating valve body 9 are housed in the water pressure chamber.
is urged downward by a spring 8.

この調整弁体はフランジ部１０との間において軸部１１
で一体に連結されており、テーパー而９ａが連通孔６内
に臨むと共に軸部１１は水圧室７との間に設けた挿通孔
１２に遊嵌させ、調整弁体の下端から軸芯を通って軸部
１１で開口する通水孔１３を設けである。This adjusting valve body is located between the shaft portion 11 and the flange portion 10.
The tapered part 9a faces into the communication hole 6, and the shaft part 11 is loosely fitted into the insertion hole 12 provided between the water pressure chamber 7 and the shaft core from the lower end of the regulating valve body. A water passage hole 13 that opens at the shaft portion 11 is provided.

調整弁体９の下部にはガイド部９ｂが設けられ、該ガイ
ド部は取付部３に設けた液溜部３ａに臨ませてあり、通
水孔１３に連通する通水孔１３ａが形成されている。尚
、液溜部３ａには浅い溝１４が設けられ、この病を介し
て通水孔１３に一次側配管からの水流が通るようにしで
ある。図示の調整弁体９の位置は二次側の吐出がＯの状
態即ちコックを閉めた時の位置及びほんのわずか吐出さ
せている時の位置である。尚図中、１５はバネ８の調節
杆、１６はキャップ、１７〜１９（よＯリングである。A guide portion 9b is provided at the lower part of the regulating valve body 9, and the guide portion faces the liquid reservoir portion 3a provided in the mounting portion 3, and a water passage hole 13a communicating with the water passage hole 13 is formed. There is. Incidentally, a shallow groove 14 is provided in the liquid reservoir portion 3a so that the water flow from the primary side piping passes through the water passage hole 13. The illustrated position of the regulating valve body 9 is the position when the discharge on the secondary side is O, that is, the position when the cock is closed, and the position when the discharge is only slightly discharged. In the figure, 15 is an adjustment rod for the spring 8, 16 is a cap, and 17 to 19 are O-rings.

この実施例における動作は、−次側圧Ｐ１をもつ流水が
連通孔６を介して減圧されてから二次側圧Ｐ２として二
次側配管４に流れるが、二次側圧Ｐ２が上界すると、余
剰の圧Ｐ２’　が挿通孔１２がら水圧室７に至り、バネ
８に抗してフランジ部１０が押し上げられ、最大限の圧
がＩＬ）った時に図示の位置に調整弁体９が位置し、連
通孔６を塞いで連通孔６からの流入をなくづ。二次側圧
Ｐ２が下がると、余剰の圧Ｐ２’　がなくなるため、バ
ネ８によるフランジ部１０が押し下げられ、調整弁体９
も下降するので連通孔６が間口し一次側から二次側に制
限された水が流入する。The operation in this embodiment is such that flowing water having a negative pressure P1 is depressurized through the communication hole 6 and then flows to the secondary pipe 4 as a secondary pressure P2. However, when the secondary pressure P2 reaches an upper limit, the excess When the pressure P2' reaches the water pressure chamber 7 through the insertion hole 12, the flange portion 10 is pushed up against the spring 8, and the maximum pressure is reached (IL), the regulating valve body 9 is located at the position shown in the figure, and communication is established. Block the hole 6 to eliminate inflow from the communication hole 6. When the secondary side pressure P2 decreases, the surplus pressure P2' disappears, so the flange portion 10 is pushed down by the spring 8, and the regulating valve body 9
Since the water also descends, the communication hole 6 opens and the restricted water flows from the primary side to the secondary side.

又、この実施例においては、成る一定の水石が流れるよ
うに液溜部３ａから通水路３を介して二次側に流出する
ようになっている。Further, in this embodiment, a certain amount of water stone flows from the liquid reservoir 3a to the secondary side via the water passage 3.

要ザるに前記したように、二次側圧によって調整弁体を
制御し、連通孔に対する調整弁体の近接又は１■により
、連通孔の間口面「１を無段に変更し、そ机によって一
次側配管から二次側配管への水通水の流入を制限し、二
次側圧を常に一定するのである。In summary, as mentioned above, the regulating valve body is controlled by the secondary side pressure, and the frontage surface of the communicating hole "1" is changed steplessly by the proximity of the regulating valve body to the communicating hole or by 1. This restricts the flow of water from the primary side piping to the secondary side piping, and keeps the secondary side pressure constant at all times.

［発明の効果］ 以上説明した通り本発明に係る圧力調整弁は二次側圧が
直接に調整弁体に作用し、二次側圧とバネ圧どのバラン
スにより調整弁体を上下動さＶ、−次側配管と二次側配
管とが連通する連通孔の間口面積を変えることによって
流入圧力のイ制御をするものであり、水圧室とバネとを
設りるｌどりであるため、その構成が簡単であり、しか
も変動の大きい一次側圧を使用せず、二次側圧によって
制御することで、二次側圧がどのような条件下にあって
も一定となり、最適条件下の水圧で使用できると云う優
れた効果を奏するのである。[Effects of the Invention] As explained above, in the pressure regulating valve according to the present invention, the secondary side pressure acts directly on the regulating valve body, and the regulating valve body is moved up and down by the balance between the secondary side pressure and the spring pressure. The inflow pressure is controlled by changing the frontage area of the communication hole where the side piping and the secondary side piping communicate, and the configuration is simple because it only requires a water pressure chamber and a spring. Moreover, by controlling the secondary side pressure without using the primary side pressure, which fluctuates widely, the secondary side pressure remains constant under any conditions, and it has the advantage of being able to be used at water pressure under optimal conditions. It has a certain effect.

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

第１図は本発明に係る圧力調整弁の縦断面図である。 １・・・・・・圧力調整弁　　２・・・・・・−次側配
管３．５・・・・・・取付部　　４・・・・・・二次側
配管３ａ・・・・・・液溜部　　　６・・・・・・連通
孔７・・・・・・水圧室　　　　８・・・・・・バネ９
・・・・・・調整弁体　　　１０・・・・・・フランジ
部１１・・・・・・軸部　　　　１２・・・・・・挿通
孔１３．１３ａ・・・・・・通水孔　１４・・・・・・
浅い溝１５・・・・・・調節杆　　　１６・・・・・・
キャップ１７．１８．１９・・・・・・０リングＰ１・
・・・・・−次側圧　　Ｐ２・・・二次側圧Ｐ２’　・
・・・・・余剰圧 第１図FIG. 1 is a longitudinal sectional view of a pressure regulating valve according to the present invention. 1...Pressure regulating valve 2...-Next side piping 3.5...Mounting part 4...Secondary side piping 3a... Liquid reservoir 6... Communication hole 7... Water pressure chamber 8... Spring 9
...Adjusting valve body 10...Flange portion 11...Shaft portion 12...Insertion hole 13.13a...Water hole 14.・・・・・・
Shallow groove 15... Adjustment rod 16...
Cap 17.18.19...0 ring P1.
・・・・・・− Outlet side pressure P2... Outlet side pressure P2' ・
...Excess pressure Figure 1

Claims (1)

【特許請求の範囲】[Claims] 一次側配管と二次側配管とを連通孔を介して連設し、該
連通孔に臨ませて調整弁体を配設し、該調整弁体は軸部
とフランジ部とを備えると共に調整弁体の下部から軸部
に至り且つ軸部で開口する通水路を設け、この調整弁体
のフランジ部を二次側配管の取付側に設けた水圧室に収
納し、該水圧室においてバネ圧により押し下げられる方
向に付勢され、二次側配管の水圧が水圧室のフランジ部
に掛り、この水圧とバネ圧とのバランスにより調整弁体
が上下動して、前記連通孔の面積を無段に変更し、それ
により一次側配管から二次側配管への流入圧を制限する
ように構成したことを特徴とする圧力調整弁。The primary side piping and the secondary side piping are connected through a communication hole, and a regulating valve body is disposed facing the communicating hole, and the regulating valve body is provided with a shaft portion and a flange portion, and the regulating valve body is provided with a shaft portion and a flange portion. A water passage is provided that reaches the shaft from the lower part of the body and opens at the shaft, and the flange of this regulating valve body is housed in a water pressure chamber provided on the installation side of the secondary piping. It is biased in the direction of being pushed down, and the water pressure of the secondary piping is applied to the flange of the water pressure chamber, and the balance between this water pressure and the spring pressure causes the regulating valve body to move up and down, increasing the area of the communication hole steplessly. 1. A pressure regulating valve characterized in that the pressure regulating valve is configured to limit the inflow pressure from the primary side piping to the secondary side piping.