JP2521142Y2 - Drainage / non-drainage automatic switching device - Google Patents
Drainage / non-drainage automatic switching deviceInfo
- Publication number
- JP2521142Y2 JP2521142Y2 JP1989109272U JP10927289U JP2521142Y2 JP 2521142 Y2 JP2521142 Y2 JP 2521142Y2 JP 1989109272 U JP1989109272 U JP 1989109272U JP 10927289 U JP10927289 U JP 10927289U JP 2521142 Y2 JP2521142 Y2 JP 2521142Y2
- Authority
- JP
- Japan
- Prior art keywords
- spring
- water
- check valve
- switching device
- valve seat
- 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 - Lifetime
Links
Landscapes
- Temperature-Responsive Valves (AREA)
Description
【考案の詳細な説明】 本考案は寒冷地の、主に水洗トイレ等で使用される排
水、非排水自動切換装置に関する。[Detailed Description of the Invention] The present invention relates to a drainage / non-drainage automatic switching device mainly used in flush toilets in cold regions.
従来、寒冷地の凍結防止対策としては、水抜栓を使用
して凍結時期には配管内の水抜きする方法が一般的に行
なわれている。当然トイレにおいても同様であるが、特
に不特定多数の人が使用する公衆トイレにおいては、衛
生上の問題と操作の簡便さから、モーター駆動の電動式
水抜栓を使用し、ボタン一つで給水および一定時間経過
後に自動的に止水する方式のものが多く採用されてい
る。しかし、止水と同時に排水も行なわれるため、冬は
良いが、凍結しない時に排水するのは水のむだになるば
かりでなく、配管が長いときなど水が出てくるまで時間
がかかり、使用者に不安、いらいらを与える原因とな
る。Conventionally, as a measure for preventing freezing in cold regions, a method of using a water drain plug to drain water from the pipe during the freezing period has been generally performed. Of course, the same applies to toilets, but especially in public toilets used by an unspecified number of people, because of hygiene problems and ease of operation, use a motor-driven electric water drain plug to supply water with a single button. In addition, a method of automatically stopping water after a certain time has been adopted. However, since water is drained at the same time as stopping water, winter is good, but draining water when it does not freeze not only wastes water, but it also takes time until water comes out due to long piping, etc. Can cause anxiety and irritability.
そのため、凍結しないときには手動で排水しないよう
に切換える方法も考えられるが、操作し忘れによる凍結
事故等の問題が残る。Therefore, a method may be considered in which the water is not drained manually when it is not frozen, but problems such as a freezing accident due to forgetting the operation remain.
本考案は上記点に鑑み、水抜栓が排水状態にあって
も、非凍結時期には水が抜けず、水温が凍結温度近くま
で下がったときに始めて排水が行なわれるようにした排
水、非排水自動切換装置を提供せんとするものであり、
そのため、水抜栓の下流側配管中に上流側に対して密封
効果の有する逆流防止弁をもうけ、逆止弁体の下流側に
細径部を延長して、弁箱に収容されるガイド体に嵌合さ
せるとともに、上記ガイド体に支持され、水温が凍結温
度附近まで下降したとき逆止弁体が弁座から離脱しうる
よう、０℃より若干高い変態点を有する形状記憶合金で
つくられた切換ばねと、上記切換ばねと逆方向に付勢さ
れるバイアスばねとを上記細径部に同軸上に装着するよ
うにしたものである。In view of the above points, the present invention is designed so that even when the water drain tap is in the draining state, the water is not drained during the non-freezing period, and the draining is performed only when the water temperature drops to near the freezing temperature. It is intended to provide an automatic switching device,
For this reason, a check valve having a sealing effect on the upstream side is provided in the downstream side pipe of the water draining plug, and the small diameter portion is extended to the downstream side of the check valve body so that the guide body is housed in the valve box. It is made of a shape memory alloy having a transformation point slightly higher than 0 ° C. so that the check valve body can be disengaged from the valve seat when it is fitted and supported by the guide body and when the water temperature falls close to the freezing temperature. A switching spring and a bias spring biased in the opposite direction of the switching spring are coaxially mounted on the small diameter portion.
以下、本考案を図面に掲げる実施例に即して説明す
る。The present invention will be described below with reference to the embodiments shown in the drawings.
第１図は本考案装置の概略図であり、制御ボックスａ
の押釦スイッチｂの操作により駆動される、モータ、ギ
ア等を内蔵した駆動ボックスｃと排水口ｄを有する弁本
体ｅとからなる水抜栓Ａの下流側配管ｆの立上部に本考
案の排水、非排水自動切換装置Ｂを取りつけ、手洗用水
栓ｇから手洗器ｈに給水されるようになっている。手洗
器ｈのかわりに小便器または大便器を接続することも勿
論可能である。FIG. 1 is a schematic view of the device of the present invention, which is a control box a.
The drainage of the present invention is provided at the upper part of the downstream side pipe f of the water drain plug A which is driven by the operation of the push button switch b, and which includes a drive box c containing a motor, a gear, etc. and a valve body e having a drainage port d. The non-drainage automatic switching device B is attached, and water is supplied from the faucet g for hand washing to the hand washing device h. It is of course possible to connect a urinal or a urinal instead of the hand basin h.
第２図に本考案切換装置Ｂの一実施例を示しており、
弁箱１は下端に流入口２を、上端に流出口３を開口し、
流入口２の下流側近傍に上向きのテーパー状の弁座４を
形成する。その下流側に中心部にガイド５を装着する、
第３図に示すような形状の、ばね用線材でつくられたク
リップリング６を装着する。ガイド体５は中心部にガイ
ド穴７を有し、Ｏリング８を装着した逆止弁体９の肩部
９′から延長される細径部10の先端にねじ部11を形成
し、ナットを螺合して調整可能なばね受け12としてい
る。細径部10の外方には、ガイド体５をはさんで下側
に、水の凍結温度である０℃より若干高い（例えば１℃
〜５℃）温度で変態する形状記憶合金でつくられた切換
ばね13を、上側にバイアスばね14を、それぞれ端部が逆
止弁体９の肩部９′とガイド体５、ガイド体５とばね受
け12に接触するように設けている。つまり、逆止弁体９
は両ばねの合成力により適宜な位置を選択できるように
なっており、切換ばね13の方が強いときにはＯリング８
が弁座４に密着しており、反対の場合は弁座４から離脱
するようにしている。FIG. 2 shows an embodiment of the switching device B of the present invention.
The valve box 1 has an inlet 2 at the lower end and an outlet 3 at the upper end,
An upwardly tapered valve seat 4 is formed near the downstream side of the inflow port 2. The guide 5 is attached to the center on the downstream side,
A clip ring 6 made of a spring wire material having a shape as shown in FIG. 3 is attached. The guide body 5 has a guide hole 7 in the center, and a threaded portion 11 is formed at the tip of a small diameter portion 10 extending from a shoulder portion 9'of a check valve body 9 having an O-ring 8 mounted thereon, and a nut is attached. The spring support 12 is screwed and adjustable. Outside the small-diameter portion 10, the guide body 5 is sandwiched downward to slightly above the freezing temperature of water, which is 0 ° C (for example, 1 ° C).
A switching spring 13 made of a shape memory alloy that transforms at a temperature of up to 5 ° C.), a bias spring 14 on the upper side, and a shoulder 9 ′ of the check valve body 9, a guide body 5, and a guide body 5, respectively. It is provided so as to contact the spring receiver 12. That is, the check valve body 9
Can select an appropriate position by the combined force of both springs. When the switching spring 13 is stronger, the O-ring 8
Is in close contact with the valve seat 4, and in the opposite case, is separated from the valve seat 4.
次に本考案の作動態様について説明する。 Next, the operation mode of the present invention will be described.
図は非凍結時期の水が使用されていない状態を示して
いるが、この状態で第１図の押釦スイッチｂを押すと、
駆動ボックスｃ内のモーターが回転し、水抜栓Ａが開栓
して立上管ｆ内に水が流れる。水は逆止弁体７を上昇さ
せて手洗用水洗ｇから放水されるが、制御ボックスａ内
のタイマーの作用で一定時間経過後にモータが逆回転
し、水抜栓Ａが閉栓、排水状態に移行する。しかしこの
ときには、水温は形状記憶合金で作られた切換ばね13が
高温時の母相に逆変態する温度より高いため、図のよう
にバイアスばね14の弾性力に抗して逆止弁体９に下降力
を与え、Ｏリング８が弁座４に密着して立上管ｆ内の水
は排水されないことになる。この状態から水温が次第に
下降して１℃〜５℃の変態点以下の温度になると、切換
ばね13はマルテンサイト層に変態して伸張力を低減し、
そのためバイアスばね14の復元力により切換ばね13を圧
縮して逆止弁体９が上昇し、Ｏリング８が弁座４から離
脱して立上管ｆ内の水は水抜栓の排水口ｄから地中に排
出されることになり、管内は空になるので凍結事故は起
こらない。つまり、非凍結時期には排水せず、凍結時期
にのみ自動的に排水が行なわれることになる。組立時に
は予めばね受け12を調整してバイアスばねの強度を変
え、逆変態時に切換ばね13に打ち勝って排水がおこなわ
れるようにしておけば良い。押釦スイッチの操作で水が
流れ始めると逆止弁体９は切換ばね13を圧縮し、細径部
10はガイド体５のガイド穴７に沿って上動し、一定時間
経過後に水が止まると、切換ばね13の復元力により逆止
弁体９は下降し、Ｏリング８が弁座４に一定の押圧力で
密着して停止する。The figure shows a state in which water is not used at the time of non-freezing, but when the push button switch b of FIG. 1 is pressed in this state,
The motor in the drive box c rotates, the water drain plug A is opened, and water flows into the rising pipe f. Although water is released from the hand washing water g by raising the check valve body 7, the motor in the control box a reversely rotates after a certain period of time by the action of the timer, and the water drain tap A is closed and the drainage state is set. To do. However, at this time, the water temperature is higher than the temperature at which the switching spring 13 made of the shape memory alloy reversely transforms into the mother phase at high temperature, and therefore the check valve body 9 is resisted against the elastic force of the bias spring 14 as shown in the figure. Then, the O-ring 8 comes into close contact with the valve seat 4 and the water in the rising pipe f is not drained. When the water temperature gradually decreases from this state to reach a temperature below the transformation point of 1 ° C to 5 ° C, the switching spring 13 transforms into a martensite layer to reduce the extension force,
Therefore, the restoring force of the bias spring 14 compresses the switching spring 13 and the check valve body 9 rises, the O-ring 8 separates from the valve seat 4, and the water in the rising pipe f is discharged from the drain port d of the water drain plug. It will be discharged underground and the inside of the pipe will be empty, so no freezing accident will occur. That is, the water is not drained during the non-freezing period, but is automatically drained only during the freezing period. At the time of assembly, the spring bearing 12 may be adjusted in advance to change the strength of the bias spring so that the switching spring 13 can be overcome during the reverse transformation so that the drainage is performed. When water starts to flow by operating the push button switch, the check valve body 9 compresses the switching spring 13 and
10 moves up along the guide hole 7 of the guide body 5, and when the water stops after a certain time elapses, the check valve body 9 descends due to the restoring force of the switching spring 13 and the O-ring 8 remains constant on the valve seat 4. It comes into close contact with the pressing force of and stops.
第４図に本考案の他の実施例を示すが、第２図のもの
との相違点は以下のとおりである。Another embodiment of the present invention is shown in FIG. 4, but the difference from that of FIG. 2 is as follows.
なお、第２図と同様な部分には同じ符号を附してい
る。The same parts as those in FIG. 2 are designated by the same reference numerals.
弁箱１は流入口２側にＯリングを装着して弁座４と
し、流出口３側に第５図に示すようなクリップリング６
を装着し、その下方に段部15を形成する。段部15の上方
シリンダ16をガイドとして上下動するガイド体５は周辺
部に数個の流路17を有し、下端に数条の上側係止溝18を
もうける。上記ガイド体５内を上下動する逆止弁体９は
下端を半球状にし、その上方部に、やはり数条の下側係
止溝19をもうける。逆止弁体９の外方には、上記両係止
溝18、19に係止され、引張りばねとして使用されるバイ
アスばね14と、その外側で、逆止弁体９の肩部９′とガ
イド体５に端部が接触する形状記憶合金からなる切換ば
ね13を装着する。水が流れるときは逆止弁体９と共にガ
イド体５をも上動し、下降時には、逆止弁体９の自重に
より弁座４を閉塞している。図は非凍結時期で、水温が
変態点より高いため、切換ばね13はバイアスばね14の弾
性力に抗してガイド体５を段部15より離脱させている
が、水温が下降して変態点以下になると、バイアスばね
14の弾性力が勝り、ガイド体５を下降させ、段部15に係
止させた後で、更に逆止弁体９を弁座４から離脱させる
ので、立上管内の水は排出が始まる。予め、バイアスば
ね14をどれだけ両係止溝18、19にねじ込むかにより、ガ
イド体５の位置を選定しておけば良い。その他の作動態
様は第２図のものと同様である。The valve box 1 is equipped with an O-ring on the inflow port 2 side to form a valve seat 4, and a clip ring 6 on the outflow port 3 side as shown in FIG.
Is attached, and a step portion 15 is formed thereunder. The guide body 5 which moves up and down by using the upper cylinder 16 of the step portion 15 as a guide has several flow passages 17 in its peripheral portion, and several upper engaging grooves 18 are provided at the lower end. The check valve body 9 which moves up and down in the guide body 5 has a hemispherical lower end, and several lower locking grooves 19 are provided in the upper portion thereof. Outside the check valve body 9, a bias spring 14 which is locked in the locking grooves 18 and 19 and is used as a tension spring, and a shoulder portion 9'of the check valve body 9 on the outer side thereof are provided. A switching spring 13 made of a shape memory alloy is attached to the guide body 5 at the end thereof. When the water flows, the check valve body 9 and the guide body 5 also move upward, and when the water flows down, the valve seat 4 is closed by the weight of the check valve body 9. The figure shows the non-freezing time, and since the water temperature is higher than the transformation point, the switching spring 13 disengages the guide body 5 from the step portion 15 against the elastic force of the bias spring 14, but the water temperature drops and the transformation point. Bias spring when
The elastic force of 14 prevails, the guide body 5 is lowered, and the check valve body 9 is disengaged from the valve seat 4 after the guide body 5 is lowered and locked to the step portion 15, so that the water in the rising pipe starts to be discharged. The position of the guide body 5 may be selected in advance depending on how much the bias spring 14 is screwed into both the locking grooves 18 and 19. The other operating modes are the same as those in FIG.
なお、本考案は電動式の水抜栓ばかりでなく、手動操
作の水抜栓にも、また、水抜栓以外の水抜用バルブに
も、さらにトイレばかりでなく通常の水抜装置にも適用
できることは当然である。It should be noted that the present invention can be applied not only to the electric water drain plug, but also to a manually operated water drain plug, to a drain valve other than the water drain plug, and to not only a toilet but also a normal drain device. is there.
以下の様に本考案においては凍結しないときに水を落
とす不経済さ、使用者に対する不安、いらいらを解消で
き、さらに排水、非排水を自動的に切換えることができ
るので、落とし忘れによる凍結事故も防止できる効果が
ある。As described below, in the present invention, it is possible to eliminate the uneconomical of dropping water when it is not frozen, the anxiety for the user, the annoyance, and the drainage / non-drainage can be automatically switched, so a freezing accident caused by forgetting to drop it There is an effect that can be prevented.
第１図は本考案装置の概略図であり、第２図は本考案の
一実施例を示す縦断面図であり、第３図は第２図クリッ
プリングの平面図であり、第４図は本考案の他の実施例
を示す縦断面図であり、第５図は第４図クリップリング
の平面図である。 １は弁箱、２は流入口、３は流出口、４は弁座、５はガ
イド体、９は逆止弁体、９′は肩部、10は細径部、12は
ばね受け、13は切換ばね、14はバイアスばねである。FIG. 1 is a schematic view of the device of the present invention, FIG. 2 is a vertical sectional view showing an embodiment of the present invention, FIG. 3 is a plan view of the clip ring of FIG. 2, and FIG. FIG. 5 is a vertical sectional view showing another embodiment of the present invention, and FIG. 5 is a plan view of the clip ring of FIG. 1 is a valve box, 2 is an inlet, 3 is an outlet, 4 is a valve seat, 5 is a guide body, 9 is a check valve body, 9'is a shoulder portion, 10 is a small diameter portion, 12 is a spring bearing, 13 Is a switching spring, and 14 is a bias spring.
Claims (2)
切換装置、水栓を配置した装置において、上記切換装置
は、弁箱の流入口側に上向きの弁座を形成し、その下流
側に中心部にガイド穴を有するガイド体を設けると共
に、下流側に上記ガイド穴に嵌合する細径部を突出して
設けた逆止弁体を弁座に当接可能に位置させ、上記細径
部には０℃よりも若干高い変態点を有する形状記憶合金
でつくられた切換ばねと、上記切換ばねと逆方向の付勢
力を有するバイアスばねとを、逆止弁体の肩部とガイド
体間に切換ばねを、またガイド体と細径部に取り付けら
れるばね受け間にバイアスばねを、それぞれ端部を接触
させて設けてなる排水、非排水自動切換装置。1. A water tap for draining water from an upstream side to a downstream side,
In the device in which the switching device and the faucet are arranged, the switching device is such that an upward valve seat is formed on the inlet side of the valve box, and a guide body having a guide hole in the center is provided on the downstream side of the valve seat and the downstream side. A check valve body provided with a protruding small diameter portion that fits in the guide hole is positioned so as to be able to contact the valve seat, and the shape memory alloy has a transformation point slightly higher than 0 ° C. in the small diameter portion. And a bias spring having a biasing force in a direction opposite to that of the switching spring, a switching spring between the shoulder portion of the check valve body and the guide body, and a guide body and a small diameter portion. A drainage / non-drainage automatic switching device, in which a bias spring is provided between spring receivers, with their ends in contact with each other.
切換装置、水栓を配置した装置において、上記切換装置
は、弁箱の流入口側に上向きの弁座を形成し、その下流
側に中心部にガイド穴を有するガイド体を設けると共
に、下流側に上記ガイド穴に嵌合する細径部を突出して
設けた逆止弁体を弁座に当接可能に位置させ、逆止弁体
とガイド体間には、逆止弁体の肩部とガイド体に端部が
接触する、０℃よりも若干高い変態点を有する形状記憶
合金でつくられた切換ばねと、逆止弁体とガイド体の係
止溝に係止される、上記切換ばねと逆方向の付勢力を有
するバイアスばねとを設けてなる排水、非排水自動切換
装置。2. A water drain plug from upstream to downstream in a water pipe,
In the device in which the switching device and the faucet are arranged, the switching device is such that an upward valve seat is formed on the inlet side of the valve box, and a guide body having a guide hole in the center is provided on the downstream side of the valve seat and the downstream side. The check valve body, which is provided with a small-diameter portion that fits in the guide hole, is provided so as to be able to contact the valve seat, and a shoulder portion of the check valve body is provided between the check valve body and the guide body. A switching spring made of a shape memory alloy having a transformation point slightly higher than 0 ° C, the end of which is in contact with the guide body, and the switching spring which is locked in the check groove of the check valve body and the guide body. And a non-drainage automatic switching device provided with a bias spring having a biasing force in the opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989109272U JP2521142Y2 (en) | 1989-09-18 | 1989-09-18 | Drainage / non-drainage automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989109272U JP2521142Y2 (en) | 1989-09-18 | 1989-09-18 | Drainage / non-drainage automatic switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0350655U JPH0350655U (en) | 1991-05-16 |
| JP2521142Y2 true JP2521142Y2 (en) | 1996-12-25 |
Family
ID=31657872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989109272U Expired - Lifetime JP2521142Y2 (en) | 1989-09-18 | 1989-09-18 | Drainage / non-drainage automatic switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2521142Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730604A (en) * | 2017-04-14 | 2018-11-02 | 国家电力投资集团公司 | Passive valve system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8610671D0 (en) * | 1986-05-01 | 1986-06-04 | Atomic Energy Authority Uk | Flow monitoring |
| JPH0446118Y2 (en) * | 1986-06-30 | 1992-10-29 |
-
1989
- 1989-09-18 JP JP1989109272U patent/JP2521142Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0350655U (en) | 1991-05-16 |
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