JP2519221Y2 - Drainage / non-drainage automatic switching device - Google Patents
Drainage / non-drainage automatic switching deviceInfo
- Publication number
- JP2519221Y2 JP2519221Y2 JP1989109271U JP10927189U JP2519221Y2 JP 2519221 Y2 JP2519221 Y2 JP 2519221Y2 JP 1989109271 U JP1989109271 U JP 1989109271U JP 10927189 U JP10927189 U JP 10927189U JP 2519221 Y2 JP2519221 Y2 JP 2519221Y2
- Authority
- JP
- Japan
- Prior art keywords
- drainage
- water
- valve
- adjusting rod
- spring
- 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)
- Safety 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を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 to prevent 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 the toilet,
Especially in public toilets used by unspecified number of people,
Due to hygiene issues and ease of operation, motor-driven electric water drain plugs are often used to supply water at the touch of a button and automatically stop the water after a certain period of time. 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 manually drained when it is not frozen, but there are still problems such as a freezing accident due to forgetting to operate.
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、水温が凍結温度付近
まで下降したとき逆止弁体を弁座から離脱させうる押圧
桿を、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で支持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 drain plug, and a pressure rod that can release the check valve body from the valve seat when the water temperature falls near the freezing temperature is provided. A switching spring made of a shape memory alloy having a transformation point slightly higher than ° C and a bias spring biased in the opposite direction to the switching spring are supported.
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 valve of the present invention is installed at the upper part of the downstream pipe f of the water drain plug A which is composed of a drive box c having a built-in motor, gears, etc. and a valve body e having a drainage port d, which is driven by operating the push button switch b. 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図には本考案切換装置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、側
方に取付口４をそれぞれ開口し、流出口３側に上向きの
弁座５をもうけている。弁箱１内には、上記弁座に密着
するＯ−リング６を装着した逆止弁体７を収容し、クリ
ップリング８により弁箱１に係止されたガイド９内を逆
止ばね10に押圧されて摺動するようにしている。取付口
４にはグランド11が接続され、グランド11内には調整桿
12が螺合されている。調整桿12の細径部13には先端をテ
ーパー状にした押圧体14を装着し、さらに押圧体14のテ
ーパー側には、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15を、反対側にはバイアスばね16を装
着するようにしている。つまり、押圧体14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、
右側に移動して、逆止弁体７の先端部17にテーパー部が
接触し、逆止弁体７を持ち上げれるだけの外径を有して
いる。FIG. 2 shows an embodiment of the switching device b of the present invention. The valve box 1 has an inflow port 2 at the lower end, an outflow port 3 at the upper end, and a mounting port 4 at the side. There is an upward valve seat 5 on the 3 side. A check valve body 7 fitted with an O-ring 6 which is in close contact with the valve seat is housed in the valve box 1, and a check spring 10 is provided in a guide 9 locked to the valve box 1 by a clip ring 8. It is pressed and slides. A gland 11 is connected to the mounting opening 4, and an adjusting rod is provided in the gland 11.
12 are screwed together. A pressing body 14 having a tapered tip is attached to the small-diameter portion 13 of the adjusting rod 12, and the taper side of the pressing body 14 has a temperature slightly higher than 0 ° C, which is the freezing temperature of water (for example, 1 ° C to 5 ° C). A switching spring 15 made of a shape memory alloy that transforms at a temperature of .degree. C.) and a bias spring 16 on the opposite side are mounted. That is, the pressing body 14 can select an appropriate position by the combined force of both springs,
By moving to the right, the taper portion comes into contact with the tip portion 17 of the check valve body 7, and has an outer diameter sufficient to lift the check valve body 7.
第３図に、弁箱１にグランド11を接続し、調整桿12等
を除いた状態図を示すが、組み立てる際には、グランド
11に調整桿12をねじ込んだ後でバイアスばね16、押圧体
14、切替ばね15を、調整桿12と一体に形成された細径部
13にに装着し、弁箱１にグランド11を接続すればよいわ
けであり、押圧体14は細径部13に沿って調整可能に、且
つ、自由に移動できるようになっている。Fig. 3 shows a state diagram in which the gland 11 is connected to the valve box 1 and the adjustment rod 12 and the like are removed.
After screwing the adjusting rod 12 into 11, bias spring 16 and pressing body
14, the switching spring 15, the small diameter part that is integrally formed with the adjusting rod 12.
It suffices to attach the gland 11 to the valve box 13 and connect the gland 11 to the valve box 1, and the pressing body 14 can be adjusted along the small diameter portion 13 and can freely move.
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
して立上管内ｆに水が流れる。水は逆止弁体７を上昇さ
せて手洗用水栓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15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16の弾性力に抗して押圧体14を左方向に
押圧しており、従って水の流れが止まって、逆止弁体７
が下降してもその先端部17が押圧体14に接触せず、Ｏ−
リング６が弁座５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15はマ
ルテンサイト相に変態し、バイアスばね16に付勢されて
押し縮められ、押圧体14が右方に移動して逆止弁体14の
先端部17に当接し、さらに逆止弁体７を上昇させるた
め、逆止弁体７と弁座５に間隙が生じて立上管内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。組立時には予め調整桿12
を調整して押圧体14が最も適宜な位置にくるよう選定し
ておけば良い。本実施例においては２個の圧縮ばねで押
圧体14をはさみ込むようにしているが、これは一方を引
っ張りばねにして細径部13のまわりに同一軸心上にもう
けるようにしてもよい。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. Water rises the check valve body 7 and is discharged from the faucet g for hand washing. However, the timer in the control box a causes the motor to reversely rotate after a certain period of time, and the 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 15 made of the shape memory alloy reversely transforms into the parent phase at high temperature, so that the pressing body 14 is left against the elastic force of the bias spring 16 as shown in the figure. Is pressed in the direction, so that the flow of water stops and the check valve body 7
Even if the DOWN is lowered, its tip portion 17 does not come into contact with the pressing body 14, and O-
The ring 6 comes into close contact with the valve seat 5 and the water in the rising pipe f is not drained. From this state, the water temperature gradually drops to 1
At a temperature below the transformation point of 5 ° C to 5 ° C, the switching spring 15 transforms to the martensite phase and is urged by the bias spring 16 to be compressed, so that the pressing body 14 moves to the right and the check valve body. Since the check valve body 7 is brought into contact with the tip 17 of the valve 14 and the check valve body 7 is further raised, a gap is created between the check valve body 7 and the valve seat 5, and the water in the rising pipe f is grounded through the drain port d of the drain plug. It will be discharged inside 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. Adjusting rod 12 when assembled
Is adjusted so that the pressing body 14 is located at the most appropriate position. In the present embodiment, the pressing body 14 is sandwiched by two compression springs, but one of them may be a tension spring so that the pressing body 14 is provided around the small diameter portion 13 on the same axis.
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と流出口３を開口し、流出口３側に
Ｏ−リングをもうけ、弁座５とする。ボール状の逆止弁
体７が上記弁座５に着座するようにし、抜け止めにクリ
ップリング８を装着する。弁箱の流入口２側には複数個
の流路18をもうけた調整桿12を螺合し、調整桿12をガイ
ドとして上下動する押圧体14は、上流側の、調整桿12を
台座とするバイアスばね16と、下流側の、形状記憶合金
でつくられた円錐形の切換ばね15とで支持されている。
図は非凍結時期で水温が変態点より高いため、切換ばね
15はバイアスばね16の弾性力に抗して押圧体14を下方に
押圧しており、排水が起こらない状態を示している。な
お、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 has an inflow port 2 and an outflow port 3 opened, and an O-ring is provided on the outflow port 3 side to form a valve seat 5. The ball-shaped check valve body 7 is seated on the valve seat 5, and the clip ring 8 is attached to the retaining member. An adjusting rod 12 provided with a plurality of flow paths 18 is screwed on the inlet 2 side of the valve box, and the pressing body 14 that moves up and down using the adjusting rod 12 as a guide serves as a base for the adjusting rod 12 on the upstream side. Bias spring 16 and a downstream conical switching spring 15 made of a shape memory alloy.
The figure shows the switching spring because the water temperature is higher than the transformation point in the non-freezing period.
Reference numeral 15 indicates a state in which the pressing body 14 is pressed downward against the elastic force of the bias spring 16 and drainage does not occur. 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図は弁箱にグラン
ドを接続し、調整桿等を除いた状態図であり、第４図は
本考案の他の実施例を示す縦断面図である。 １は弁箱、５は弁座、７は逆止弁体、12は調整桿、14は
押圧体、15は切換ばね、16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, and FIG. 3 is a state in which a gland is connected to a valve box and an adjusting rod and the like are removed. FIG. 4 is a vertical sectional view showing another embodiment of the present invention. Reference numeral 1 is a valve box, 5 is a valve seat, 7 is a check valve body, 12 is an adjusting rod, 14 is a pressing body, 15 is a switching spring, and 16 is a bias spring.
Claims (1)
切替装置、水栓を配置した装置において、上記切替装置
は、流入口、流出口間に設けた上向きの弁座を有する弁
箱と、上記弁座を閉塞する逆止弁体と、弁箱又は弁箱に
接続されるグランドに調整可能にねじ接続される調整桿
と、０℃より若干高い変態点を有する形状記憶合金でつ
くられた切替ばねと、上記切替ばねと逆方向の付勢力を
有するバイアスばねと、上記二つのばねの合成力によ
り、上記調整桿に沿って移動し、逆止弁体を弁座から離
脱させる押圧体とからなり、上記切替ばね、バイアスば
ね、押圧体は、弁座の上流側弁箱内に調整桿と弁箱内壁
とによりはさまれるよう位置させて設けたことを特徴と
する排水、非排水自動切替装置。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 includes a valve box having an upward valve seat provided between an inflow port and an outflow port, a check valve body closing the valve seat, a valve box, or An adjusting rod adjustably screwed to a gland connected to the valve box, a switching spring made of a shape memory alloy having a transformation point slightly higher than 0 ° C., and an urging force in a direction opposite to that of the switching spring. The bias spring and a pressing body that moves along the adjusting rod and separates the check valve body from the valve seat by the combined force of the two springs.The switching spring, the bias spring, and the pressing body are the valves. A drainage / non-drainage automatic switching device, which is provided so as to be sandwiched between an adjusting rod and an inner wall of the valve box in the valve box on the upstream side of the seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989109271U JP2519221Y2 (en) | 1989-09-18 | 1989-09-18 | Drainage / non-drainage automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989109271U JP2519221Y2 (en) | 1989-09-18 | 1989-09-18 | Drainage / non-drainage automatic switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0350654U JPH0350654U (en) | 1991-05-16 |
| JP2519221Y2 true JP2519221Y2 (en) | 1996-12-04 |
Family
ID=31657871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989109271U Expired - Lifetime JP2519221Y2 (en) | 1989-09-18 | 1989-09-18 | Drainage / non-drainage automatic switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519221Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002295720A (en) * | 2001-04-02 | 2002-10-09 | Ishikawajima Harima Heavy Ind Co Ltd | Shut-off valve unit |
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 JP1989109271U patent/JP2519221Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0350654U (en) | 1991-05-16 |
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