JP3536360B2 - Water supply device with drainage mechanism - Google Patents
Water supply device with drainage mechanismInfo
- Publication number
- JP3536360B2 JP3536360B2 JP18859894A JP18859894A JP3536360B2 JP 3536360 B2 JP3536360 B2 JP 3536360B2 JP 18859894 A JP18859894 A JP 18859894A JP 18859894 A JP18859894 A JP 18859894A JP 3536360 B2 JP3536360 B2 JP 3536360B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- valve
- water supply
- pipe
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Domestic Plumbing Installations (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は水抜き機構付き給水装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device with a water draining mechanism.
【０００２】[0002]
【従来の技術】従来、特開平5-222747号公報に見られる
ように、吐水口内の残留水を無くすために、吐水口の下
方に、給水側に開口した入口通路と、吐水側に開口した
出口通路と、外部に開口した逃し通路とを形成し、内部
に主弁からの水圧で作動する弁体を内蔵した逃し弁を設
けて、主弁が開弁したときには逃し通路を閉じて吐水口
から出水し、主弁が閉弁したときには逃し通路を開い
て、逃し弁と吐水口との間に残留した水を逃し通路から
外部に排出するようにしたものがある。2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Laid-Open No. 5-222747, in order to eliminate residual water in the spout, an inlet passage opening to the water supply side and an opening to the spout side are formed below the spout. An outlet passage and an escape passage open to the outside are formed, and a relief valve having a valve body that operates by water pressure from the main valve is provided inside, and when the main valve opens, the relief passage is closed and the water discharge port is opened. There is one in which the water is discharged from the main valve and the relief passage is opened when the main valve is closed so that the water remaining between the relief valve and the spout is discharged from the relief passage to the outside.
【０００３】[0003]
【発明が解決しようとする課題】ところが、凍結防止の
ための水抜きは、給水管と主弁間の一次側配管の水抜き
が必要であるにもかかわらず、上記の従来技術では、図
５で示すように、逃し弁ａが主弁ｂの下流側に設けられ
ているため、吐水口ｃと逃し弁ａ間の水を抜くことはで
きるが、主弁ｂと逃し弁ａとの間に水が残留することに
なり、凍結防止のための水抜きには不十分である。However, in order to prevent water from freezing, it is necessary to drain water from the primary side pipe between the water supply pipe and the main valve, but in the above-mentioned prior art, the drainage of FIG. Since the relief valve a is provided on the downstream side of the main valve b as shown in FIG. 3, water between the water outlet c and the relief valve a can be drained, but between the main valve b and the relief valve a. Water remains, which is insufficient for draining water to prevent freezing.
【０００４】[0004]
【課題を解決するための手段】本発明では、水及び／又
は湯を供給する給水源に接続した給水管を分岐させて、
一方の分岐端に吐水口に吐水管を介して連通した主弁を
接続し、他方の分岐端に排水管に連通した水抜き弁を接
続すると共に、水抜き弁と主弁との間の給水管に第１分
岐部を形成し、主弁と吐水口との間の吐水管に第２分岐
部を形成して、第１分岐部と第２分岐部とを、中途に第
１分岐部から第２分岐部への水流を阻止し、第２分岐部
から第１分岐部へは水を流通させる逆止弁を介装したバ
イパス通路で連通させたことを特徴とする水抜き機構付
き給水装置を提供せんとするものである。According to the present invention, a water supply pipe connected to a water supply source for supplying water and / or hot water is branched,
The main valve connected to the water outlet through the water discharge pipe is connected to one branch end, the drain valve connected to the drain pipe is connected to the other branch end, and the water supply between the drain valve and the main valve is connected. A first branch portion is formed in the pipe, a second branch portion is formed in the water discharge pipe between the main valve and the water outlet, and the first branch portion and the second branch portion are separated from the first branch portion midway. A water supply device with a water draining mechanism, characterized in that a water flow to the second branch part is blocked, and the second branch part communicates with the first branch part by a bypass passage provided with a check valve for allowing water to flow therethrough. Is intended to be provided.
【０００５】また、次のような特徴を併せ有するもので
ある。It also has the following features.
【０００６】上記水抜き弁が給水源の近傍に設けられて
いること上記水抜き弁が給水管及び吐水管の最下部に設
けられていること。The water drain valve is provided in the vicinity of the water supply source. The water drain valve is provided at the bottom of the water supply pipe and the water discharge pipe.
【０００７】上記逆止弁の内部に、中途に下向きの弁座
を形成した縦方向の流路を設け、弁座下方の流路中に弁
体を上下摺動自在に嵌入すると共に、弁座下方の流路の
内周面に複数の流通溝を形成して、弁体の上方摺動によ
って上記弁座を閉弁し、弁体の下方摺動によって上記弁
座を開弁するように構成すると共に、弁体に弁体を上方
向に付勢するための浮力を付与したこと。Inside the check valve, a vertical flow passage having a downwardly facing valve seat is provided, and a valve body is vertically slidably fitted in the flow passage below the valve seat and the valve seat is seated. A plurality of flow grooves are formed on the inner peripheral surface of the lower flow path, and the valve seat is closed by sliding the valve body upward, and the valve seat is opened by sliding the valve body downward. At the same time, buoyancy is applied to the valve body to urge the valve body upward.
【０００８】[0008]
【実施例】本発明の実施例を図面を参照して説明する。Embodiments of the present invention will be described with reference to the drawings.
【０００９】図１は、本発明に係る水抜き機構Ａを具備
した給水装置Ｂの構成を示しており、給水源１と接続し
た給水管２の中途に水抜き弁３を接続し、給水管２の終
端に主弁４を接続し、同主弁４に吐水管５の始端を接続
し、同吐水管５の終端に吐水口６を開口させている。FIG. 1 shows the construction of a water supply apparatus B equipped with a water draining mechanism A according to the present invention. A water drain valve 3 is connected in the middle of a water supply pipe 2 connected to a water supply source 1. The main valve 4 is connected to the end of 2, the start end of the water discharge pipe 5 is connected to the main valve 4, and the water discharge port 6 is opened at the end of the water discharge pipe 5.
【００１０】そして、主弁４と水抜き弁３間の給水管２
と吐水管５とに、望ましくは主弁４に近接してそれぞれ
第１、第２分岐部7,8 を設けて、上記第１、第２分岐部
7,8を、中途に給水管２から吐水管５方向への水流を阻
止するが、吐水管５から給水管２方向へは水を流通させ
る逆止弁９を介装したバイパス配管10で連通させてい
る。The water supply pipe 2 between the main valve 4 and the water drain valve 3
The first and second branch parts 7 and 8 are provided in the water discharge pipe 5 and the water discharge pipe 5, respectively, preferably close to the main valve 4, and the first and second branch parts are provided.
7 and 8 are connected to each other by a bypass pipe 10 having a check valve 9 for preventing water flow from the water supply pipe 2 toward the water discharge pipe 5 in the middle, but allowing water to flow from the water discharge pipe 5 toward the water supply pipe 2 direction. I am letting you.
【００１１】かかる構成によって、主弁４を開弁したと
きは通常に吐水口６から出水することができ、主弁４を
閉弁しているときは、上記逆止弁９によって吐水口６方
向の水の流通が阻止されているので、吐水口６からの出
水を停止させることができる。With this configuration, water can be normally discharged from the water outlet 6 when the main valve 4 is opened, and when the main valve 4 is closed, the check valve 9 is used to direct the water to the outlet 6 direction. Since the circulation of the water is blocked, the water discharge from the water discharge port 6 can be stopped.
【００１２】そして、凍結防止等の目的で給水装置Ｂ内
の水を排出するには、止水栓1aを閉弁し、水抜き弁３を
開弁すると、水抜き弁３と主弁４との間の給水管２中の
水が水抜き弁３から排水管3aを介して外部に排出され、
これと同時に、前記逆止弁９が開弁するので、大気が吐
水管５中に導入され、吐水管５中の水が、第２分岐部８
→バイパス配管10→逆止弁９→バイパス配管10→第１分
岐部７→給水管２→水抜き弁３→排水管3aの順に流れて
外部に排出される。In order to discharge the water in the water supply device B for the purpose of preventing freezing or the like, when the water stop valve 1a is closed and the water drain valve 3 is opened, the water drain valve 3 and the main valve 4 are connected. The water in the water supply pipe 2 between is discharged from the drain valve 3 to the outside through the drain pipe 3a,
At the same time, since the check valve 9 is opened, the atmosphere is introduced into the water discharge pipe 5, and the water in the water discharge pipe 5 is discharged into the second branch portion 8.
-> Bypass pipe 10-> Check valve 9-> Bypass pipe 10-> 1st branch part 7-> Water supply pipe 2-> Drain valve 3-> Drain pipe 3a It flows in this order and is discharged outside.
【００１３】このように、吐水口６から水抜き弁３まで
の配管から、水を完全に排出することができるので、凍
結防止に極めて有効である。As described above, since water can be completely discharged from the pipe from the water discharge port 6 to the water drain valve 3, it is extremely effective in preventing freezing.
【００１４】特に、水抜き弁３を可及的に給水源１に近
接させることで、広い範囲の配管から水を排出すること
ができるようになり、凍結防止効果を更に高めることが
できる。In particular, by bringing the water drain valve 3 as close as possible to the water supply source 1, it becomes possible to discharge water from a wide range of pipes, and the antifreezing effect can be further enhanced.
【００１５】また、吐水口６と主弁４とが大きく離れて
いても（例えば、30cm以上）、排水管3aの開口部が吐水
口６よりも低位置であれば、サイフォン作用によって吐
水管５中の水が給水管２側に吸い出され、支障なく外部
に排出されることになる。Even if the water discharge port 6 and the main valve 4 are widely separated (for example, 30 cm or more), if the opening of the drainage pipe 3a is located at a position lower than the water discharge port 6, the water discharge pipe 5 is siphoned. The water inside will be sucked out to the water supply pipe 2 side and will be discharged to the outside without any trouble.
【００１６】図２及び図３は、逆止弁９を示しており、
略筒状の逆止弁外殻11の内部に、中途に下向きの弁座12
を形成した縦方向の流路13を形成し、上記弁座12下方の
流路13に弁体15を上下摺動自在に嵌入して、弁体15の上
方摺動によって上記弁座12を閉弁し、下方摺動によって
弁座12を開弁するように構成し、流路13内壁面に摺接す
る弁体外周面に複数の流通溝14を形成すると共に、弁体
15の下方に球状浮力体16を配設して弁体15を上方向に付
勢するための浮力を付与している。2 and 3 show the check valve 9,
Inside the substantially cylindrical check valve shell 11, a valve seat 12 facing downward is provided.
A vertical flow path 13 is formed, the valve body 15 is vertically slidably fitted in the flow path 13 below the valve seat 12, and the valve seat 15 is closed by sliding the valve body 15 upward. It is configured to open the valve seat 12 by sliding the valve downward, and a plurality of flow grooves 14 are formed on the outer peripheral surface of the valve body that is in sliding contact with the inner wall surface of the flow path 13 and the valve body is formed.
A spherical buoyancy body 16 is disposed below the valve 15 to give buoyancy for urging the valve body 15 upward.
【００１７】なお、弁体15に浮力を付与するには、上記
の球状浮力体16の他に、弁体15自体を水より比重が小さ
い素材で形成したり、弁体15の内部に空洞を形成したり
することができる。In order to impart buoyancy to the valve body 15, in addition to the spherical buoyancy body 16 described above, the valve body 15 itself may be formed of a material having a smaller specific gravity than water, or a cavity may be formed inside the valve body 15. Can be formed.
【００１８】かかる構成によって、弁体15は常時閉弁方
向の付勢を受けることになり、主弁４の開閉による圧力
変動によって閉弁状態が悪化したり、閉弁の立上りが遅
れて主弁４閉弁後に吐水口６から漏水するというような
不具合を防止することができる。With such a structure, the valve body 15 is constantly biased in the valve closing direction, and the valve closing state is deteriorated due to the pressure fluctuation caused by the opening / closing of the main valve 4, or the rising of the valve closing is delayed and the main valve is delayed. It is possible to prevent such a problem that water is leaked from the water outlet 6 after closing the valve 4.
【００１９】図３は、本発明を洗面台の自動水栓Ｃに適
用した実施例を示しており、洗面台の上面板17に斜め上
方向に立設した水栓18の先端部下面に手センサー19と吐
水口６とを開口し、吐水口６は、水栓18内上部に形成し
た吐水通路20と中継管21よりなる吐水管５を介し、上面
板17下方に配設した機能部22に接続しており、手センサ
ー19は電気配線23を介して制御部24に接続している。な
お、25は整流板、26は水栓18取付用のナット、27,28 は
中継管21接続用の袋ナットである。FIG. 3 shows an embodiment in which the present invention is applied to an automatic faucet C of a wash basin, and a hand is provided on the lower surface of the tip of a faucet 18 which is erected obliquely upward on a top plate 17 of the wash basin. The sensor 19 and the water discharge port 6 are opened, and the water discharge port 6 is disposed below the upper plate 17 via the water discharge passage 5 formed in the upper part of the faucet 18 and the water discharge pipe 5 including the relay pipe 21. The hand sensor 19 is connected to the control unit 24 via the electric wiring 23. In addition, 25 is a straightening plate, 26 is a nut for attaching the faucet 18, and 27 and 28 are cap nuts for connecting the relay pipe 21.
【００２０】機能部22は、上記中継管21と給水源１に接
続した給水管２との間に介在しており、水抜き弁ケーシ
ング29とバルブケーシング30とで構成されている。The functional portion 22 is interposed between the relay pipe 21 and the water supply pipe 2 connected to the water supply source 1, and is composed of a drain valve casing 29 and a valve casing 30.
【００２１】水抜き弁ケーシング29は、その内部におい
て、始端を給水源１に接続した給水流路31を略Ｕ字形状
に屈折させ、その最下部に止水弁孔32を形成した仕切り
壁33を設けて、同止水弁孔32を水抜き弁ケーシング29の
壁体を横方向に挿通した止水弁34の止水弁体35により開
閉するようにしている。Inside the water drain valve casing 29, a partition wall 33 having a water supply passage 31 whose starting end is connected to the water supply source 1 is bent into a substantially U shape, and a water shutoff valve hole 32 is formed in the lowermost portion thereof. The water shutoff valve hole 32 is opened and closed by a water shutoff valve body 35 of a water shutoff valve 34 that is inserted laterally through the wall body of the drain valve casing 29.
【００２２】また、略Ｕ字形状の給水流路31最下部の下
面壁に水抜き流路36を形成し、同水抜き流路36を下方向
から挿入した水抜き弁３の水抜き弁体37で開閉自在に閉
塞している。なお、38は他の水栓を接続するための連通
孔である。Further, a water drainage channel 36 is formed in the lower surface wall of the lowermost portion of the substantially U-shaped water supply channel 31, and the drainage valve body of the water drainage valve 3 is inserted from below. It is open and closed at 37. Reference numeral 38 is a communication hole for connecting another faucet.
【００２３】かかる構成によって、止水弁34と水抜き弁
３とをコンパクトに水抜き弁ケーシング29中に収納する
ことができ、特に、水抜き弁３を給水流路31の最下部に
位置させることができる。With this construction, the water shutoff valve 34 and the water drain valve 3 can be compactly housed in the water drain valve casing 29, and in particular, the water drain valve 3 is located at the bottom of the water supply passage 31. be able to.
【００２４】水抜き弁ケーシング29の終端は、バルブケ
ーシング30の始端に接続しており、バルブケーシング30
の内部において、バルブ流路39を略Ｌ字状に屈折させ、
その水平部40の終端にストレーナー41を配設し、垂直部
42には下面の逆止弁取付孔43と側面の主弁孔44とを形成
した略Ｌ字形状の仕切り壁45を設けて、同垂直部42を水
抜き弁ケーシング29に連通した部分と、水栓18に連通し
た部分とに区画している。The end of the water drain valve casing 29 is connected to the start end of the valve casing 30, and the valve casing 30
In the inside of, the valve flow path 39 is bent into a substantially L shape,
A strainer 41 is arranged at the end of the horizontal portion 40, and the vertical portion
A substantially L-shaped partition wall 45 having a check valve mounting hole 43 on the lower surface and a main valve hole 44 on the side surface is provided at 42, and the vertical portion 42 communicates with the drain valve casing 29. It is divided into a part communicating with the faucet 18.
【００２５】そして、逆止弁取付孔43には前記逆止弁９
が装着されており、主弁孔44には制御部24に接続したソ
レノイド46で駆動されるダイヤフラム型の主弁体47が開
閉自在に装着されている。The check valve 9 is provided in the check valve mounting hole 43.
The main valve hole 44 is provided with a diaphragm-type main valve body 47, which is driven by a solenoid 46 connected to the control unit 24, so as to be openable and closable.
【００２６】かかる構成によって、水抜き弁３を閉弁
し、止水弁34を開弁しておくと、使用者が手などを水栓
18の下方に差し出したとき、手センサー19がこれを感知
して、制御部24を介してソレノイド46に開弁信号を出力
し、ソレノイド46およびダイヤフラムの作動により主弁
体47が開弁して吐水口６から出水し、手センサー19が手
などを感知しなくなると、制御部24から閉弁信号が出力
して出水を停止させることができる。With this structure, when the water drain valve 3 is closed and the water shutoff valve 34 is opened, the user can put a hand on the faucet.
When it is pushed out below 18, the hand sensor 19 senses this and outputs a valve opening signal to the solenoid 46 via the control section 24, and the main valve body 47 opens due to the operation of the solenoid 46 and the diaphragm. When water is discharged from the water discharge port 6 and the hand sensor 19 no longer senses a hand or the like, a valve closing signal is output from the control unit 24 and the water discharge can be stopped.
【００２７】また、凍結防止等のために水抜きを行うと
きは、まず、止水弁34を閉弁し、次いで水抜き弁３を開
弁すると、逆止弁９が開弁するので、主弁４の開閉状態
に関係なく、吐水口６から水抜き弁３までの水が水抜き
流路36から外部に排出されることになる。When draining water to prevent freezing or the like, first, the water stop valve 34 is closed, and then the water drain valve 3 is opened, so that the check valve 9 is opened. Regardless of the open / closed state of the valve 4, the water from the water discharge port 6 to the drain valve 3 is discharged from the drain channel 36 to the outside.
【００２８】特に、水抜き弁３が給水源１に接近してお
り、更に、水抜き弁３及び水抜き流路36が水抜き弁ケー
シング29の最下部に設けられているので、水抜きできる
範囲が広くなり、水抜き弁ケーシング29内の水はもちろ
ん、吐水口６と主弁４間の距離が30cm以上離れていて
も、止水弁34から吐水口６までの水を完全に排出するこ
とができ、凍結防止効果を高めることができる。In particular, since the water drain valve 3 is close to the water supply source 1 and the water drain valve 3 and the water drain passage 36 are provided at the bottom of the water drain valve casing 29, water can be drained. The range is widened, and the water in the water drain valve casing 29 and the water from the water shutoff valve 34 to the water outlet 6 are completely discharged even if the distance between the water outlet 6 and the main valve 4 is 30 cm or more. Therefore, the antifreezing effect can be enhanced.
【００２９】また、水抜き時の逆止弁９の開閉が、主弁
４の開閉状態に関係なく行われるため、水抜き作業時に
おいて、主弁４を開弁する必要がなく、これらの手間を
省くことができる。Further, since the check valve 9 is opened / closed at the time of draining water regardless of the opened / closed state of the main valve 4, it is not necessary to open the main valve 4 at the time of draining work, and these troubles are not required. Can be omitted.
【００３０】[0030]
【発明の効果】本発明によれば、給水源と吐水口との間
に介在した主弁の上流側と下流側とを、中途に吐水口方
向の水流を阻止し、給水源方向には水を流通させる逆止
弁を介設したバイパス通路で連通させたことにより、水
抜き弁を開弁したとき主弁の開閉状態に関係なく水抜き
弁と吐水口間の水を排出することができる。According to the present invention, the upstream side and the downstream side of the main valve interposed between the water supply source and the water outlet are prevented from flowing in the middle of the water flow toward the water outlet and the water flows toward the water source. By connecting with a bypass passage provided with a check valve for circulating water, it is possible to discharge the water between the drain valve and the spout regardless of the opened / closed state of the main valve when the drain valve is opened. .
【００３１】また、上記水抜き弁を給水源の近傍に設け
ることによって、水抜きできる範囲が広くなり、水抜き
の効果（凍結防止効果等）を向上することができる。By providing the water drain valve near the water supply source, the water drainage range is widened, and the water drainage effect (freezing prevention effect, etc.) can be improved.
【００３２】上記逆止弁の内部に、中途に下向きの弁座
を形成した縦方向の水流路を形成し、弁座下方の水流路
に外周面に複数の流通溝を形成した弁体を上下摺動自在
に嵌入して、弁体の上方摺動によって上記弁座を閉弁
し、弁体の下方摺動によって上記弁座を開弁するように
構成すると共に、弁体に弁体を上方向に付勢するための
浮力を付与したことによって、弁体のガイドを要せず構
造が簡単になり、上記浮力によって弁体が閉弁方向に常
時付勢されているので、主弁の開閉による水圧の変動に
かかわりなく閉弁状態を保持することができ、主弁閉弁
後に吐水口からの水漏れを防止することができる。Inside the check valve, a vertical water passage having a downward facing valve seat is formed, and a valve body having a plurality of flow grooves formed on the outer peripheral surface of the water passage below the valve seat is vertically moved. It is configured to be slidably fitted so that the valve seat is closed by sliding the valve body upward, and the valve seat is opened by sliding the valve body downward, and the valve body is mounted on the valve body. By applying buoyancy to urge the valve in the direction, the structure is simplified without the need to guide the valve, and the buoyancy always urges the valve in the valve closing direction. The valve closed state can be maintained irrespective of the fluctuation of the water pressure due to, and water leakage from the spout after the main valve is closed can be prevented.
【図１】本発明に係る水抜き機構付き給水装置の構成を
示す説明図。FIG. 1 is an explanatory diagram showing the configuration of a water supply device with a water draining mechanism according to the present invention.
【図２】逆止弁の縦断面説明図。FIG. 2 is a vertical cross-sectional explanatory view of a check valve.
【図３】図２におけるＩ−Ｉ線断面図。3 is a cross-sectional view taken along line I-I in FIG.
【図４】本発明の水抜き機構付き給水装置を適用した洗
面台の水栓の断面説明図。FIG. 4 is an explanatory cross-sectional view of a faucet of a washbasin to which the water supply device with a water draining mechanism of the present invention is applied.
【図５】従来の水抜き構造の説明図。FIG. 5 is an explanatory view of a conventional drainage structure.
１ 給水源 ２ 給水管 ３ 水抜き弁 ４ 主弁 ５ 吐水管 ６ 吐水口 ９ 逆止弁 10 バイパス配管 12 弁座 13 流路 14 流通溝 15 弁体 1 water supply source 2 water supply pipe 3 drain valve 4 main valve 5 Discharge pipe 6 spout 9 Check valve 10 Bypass piping 12 seat 13 channels 14 Distribution groove 15 valve body
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E03C 1/044 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) E03C 1/044
Claims (4)
水抜き弁(3) を接続し、同水抜き弁(3) に給水管(2) を
介して主弁(4) を接続し、同主弁(4) に吐水管(5) を介
して吐水口(6) を接続し、上記給水管(2) と吐水管(5)
とを、中途に吐水口(6) 方向の水流を阻止するが、給水
源(1) 方向には水を流通できる逆止弁(9) を介設したバ
イパス配管(10)で連通させたことを特徴とする水抜き機
構付き給水装置。1. A drain valve (3) is connected to a water supply source (1) for supplying water and / or hot water, and a main valve (4) is connected to the water drain valve (3) via a water supply pipe (2). And the water outlet (6) to the main valve (4) via the water discharge pipe (5), and the above water supply pipe (2) and water discharge pipe (5).
Is connected by a bypass pipe (10) with a check valve (9) that prevents water flow toward the outlet (6) in the middle but allows water to flow toward the water supply source (1). A water supply device with a water draining mechanism.
設けられていることを特徴とする請求項１記載の水抜き
機構付き給水装置。2. The water supply device with a water drainage mechanism according to claim 1, wherein the water drainage valve (3) is provided in the vicinity of the water supply source (1).
管(5) の最下部に設けられていることを特徴とする請求
項１記載の水抜き機構付き給水装置。3. The water supply device with a water drainage mechanism according to claim 1, wherein the water drainage valve (3) is provided at the lowest part of the water supply pipe (2) and the water discharge pipe (5).
の弁座(12)を形成した縦方向の流路(13)を設け、弁座(1
2)下方の流路(13)中に弁体(15)を上下摺動自在に嵌入す
ると共に、弁座(12)下方の流路(13)の内周面に複数の流
通溝(14)を形成して、弁体(15)の上方摺動によって上記
弁座(12)を閉弁し、弁体(15)の下方摺動によって上記弁
座(12)を開弁するように構成すると共に、弁体(15)に弁
体(15)を上方向に付勢するための浮力を付与したことを
特徴とする請求項１記載の水抜き機構付き給水装置。4. The check valve (9) is internally provided with a vertical flow passage (13) having a downwardly facing valve seat (12) formed therein.
2) The valve body (15) is vertically slidably fitted in the lower flow passage (13), and a plurality of flow grooves (14) are formed on the inner peripheral surface of the flow passage (13) below the valve seat (12). And the valve seat (12) is closed by sliding the valve body (15) upward, and the valve seat (12) is opened by sliding the valve body (15) downward. At the same time, the valve body (15) is provided with a buoyancy force for urging the valve body (15) in an upward direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18859894A JP3536360B2 (en) | 1994-08-10 | 1994-08-10 | Water supply device with drainage mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18859894A JP3536360B2 (en) | 1994-08-10 | 1994-08-10 | Water supply device with drainage mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0853863A JPH0853863A (en) | 1996-02-27 |
| JP3536360B2 true JP3536360B2 (en) | 2004-06-07 |
Family
ID=16226467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18859894A Expired - Fee Related JP3536360B2 (en) | 1994-08-10 | 1994-08-10 | Water supply device with drainage mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3536360B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5072065B2 (en) * | 2006-09-04 | 2012-11-14 | Ｔｏｔｏ株式会社 | Sanitary washing device and toilet device |
| JP5918524B2 (en) * | 2011-12-15 | 2016-05-18 | 株式会社Ｌｉｘｉｌ | Hot and cold water faucet |
| KR200487202Y1 (en) * | 2018-01-19 | 2018-09-20 | 주식회사 대연공업 | Shut-off device for water leakage prevention of indoor water pipe |
-
1994
- 1994-08-10 JP JP18859894A patent/JP3536360B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0853863A (en) | 1996-02-27 |
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