JPH0243005Y2 - - Google Patents

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Publication number
JPH0243005Y2
JPH0243005Y2 JP17077786U JP17077786U JPH0243005Y2 JP H0243005 Y2 JPH0243005 Y2 JP H0243005Y2 JP 17077786 U JP17077786 U JP 17077786U JP 17077786 U JP17077786 U JP 17077786U JP H0243005 Y2 JPH0243005 Y2 JP H0243005Y2
Authority
JP
Japan
Prior art keywords
pipe
bypass
valve
water
return pipe
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
JP17077786U
Other languages
Japanese (ja)
Other versions
JPS6375747U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP17077786U priority Critical patent/JPH0243005Y2/ja
Publication of JPS6375747U publication Critical patent/JPS6375747U/ja
Application granted granted Critical
Publication of JPH0243005Y2 publication Critical patent/JPH0243005Y2/ja
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は浴槽に設定水位まで自動で落し込みを
行う自動風呂装置に関するものである。
[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an automatic bath device that automatically fills a bathtub with water up to a set water level.

(従来の技術と問題点) 従来、自動で浴槽に落し込みを行なうものにお
いては、浴槽水位の検出は実願昭59−169937号
(実開昭61−84461号公報)に示されるような水位
検出器を浴槽に設けることにより行つていた。し
かしながらこれでは水位検出器の信号線の工事を
行う必要があり、しかも水漏れの危険等がありそ
の施工は煩しいものであつた。この問題点の対策
として本願出願人は先に特願昭61−168937号(特
開昭63−21439号公報)を提案した。しかしなが
ら2本の循環管の1本を搬送用とし、他方を圧検
知用としているためエアパージする必要が有り、
搬送回路を切り換えていた。このとき電磁弁の開
閉のシヨツクでウオーターハンマーが生じ、その
衝激圧が圧力センサーにかかるためセンサーの寿
命を縮めるものであつた。又、同時に反動で圧力
検知管内に空気を吸い込み、誤検出の原因となる
欠点があつた。
(Prior art and problems) Conventionally, in devices that automatically drop water into the bathtub, the detection of the bathtub water level is based on the water level as shown in Utility Model Application No. 59-169937 (Utility Model Publication No. 84461-1983). This was done by installing a detector in the bathtub. However, this requires construction of the signal line of the water level detector, and the construction is troublesome due to the risk of water leakage. As a countermeasure to this problem, the applicant of the present application previously proposed Japanese Patent Application No. 168937/1983 (Japanese Patent Application Laid-Open No. 21439/1982). However, since one of the two circulation pipes is used for conveyance and the other is used for pressure detection, air purging is necessary.
The transport circuit was being switched. At this time, water hammer was generated by the opening and closing of the solenoid valve, and the impact pressure was applied to the pressure sensor, shortening the life of the sensor. At the same time, there was a drawback that air was sucked into the pressure detection tube due to recoil, causing false detection.

本考案は上記欠点を解消し、ウオーターハンマ
ーを軽減してセンサーの寿命を延ばすと共にエア
置換を防止して誤検出をなくすことを目的とする
ものである。
The present invention aims to eliminate the above-mentioned drawbacks, reduce water hammer, extend the life of the sensor, and prevent air displacement to eliminate false detection.

(実施例) 第1図において、1は器具本体、2は給湯器、
3は風呂装置であり本体1内に設けられる。4は
本体1より遠隔位置にある浴槽である。5は給湯
器3の出湯管7より分岐された風呂給湯管であ
り、落し込み弁6が設けられている。8,9は風
呂装置3の追焚循環管で、ポンプ10から熱交換
器を経て浴槽4に接続される往管8と、浴槽4か
らポンプ10に帰る戻管9とからなる。11は水
圧検出器としての圧力センサであり、本体1内の
戻管9に設けられており、浴槽水位との水位差を
検出し、水位検出として用いるのである。12は
ポンプ10の吸込側に接続される三方弁で、一方
は戻管9が接続され、他方は後述するホツパ13
に接続されている。ホツパ13は大気開放となつ
ており、前記風呂給湯管5からの湯を縁切りする
ためのものであり、三方弁12を切換えることに
よつて往管8から浴槽4に湯を落し込めるように
なつている。14は往管8から戻管9の圧力セン
サ11より下流に接続されたバイパス管で、バイ
パス弁15が設けられている。又、バイパス管1
4との分岐点より下流の往管8には三方弁16が
設けられている。17は戻管9に設けた水流スイ
ツチである。バイパス弁15は弁体18で開閉さ
れる弁口19と並列にバイパス穴20が設けられ
ている。
(Example) In Fig. 1, 1 is the appliance body, 2 is the water heater,
Reference numeral 3 denotes a bathing device, which is provided within the main body 1. 4 is a bathtub located at a remote location from the main body 1. 5 is a bath hot water supply pipe branched from the hot water outlet pipe 7 of the water heater 3, and is provided with a drop valve 6. Reference numerals 8 and 9 denote reheating circulation pipes of the bath device 3, which consist of an outgoing pipe 8 connected from the pump 10 to the bathtub 4 via a heat exchanger, and a return pipe 9 returning from the bathtub 4 to the pump 10. Reference numeral 11 denotes a pressure sensor as a water pressure detector, which is installed in the return pipe 9 in the main body 1, and is used to detect the water level difference from the bathtub water level. 12 is a three-way valve connected to the suction side of the pump 10, one side is connected to the return pipe 9, and the other side is connected to the hopper 13 described later.
It is connected to the. The hopper 13 is open to the atmosphere and is used to cut off hot water from the bath hot water supply pipe 5, and by switching the three-way valve 12, hot water can be poured into the bathtub 4 from the outgoing pipe 8. ing. A bypass pipe 14 is connected from the outgoing pipe 8 to the return pipe 9 downstream of the pressure sensor 11, and is provided with a bypass valve 15. Also, bypass pipe 1
A three-way valve 16 is provided on the outgoing pipe 8 downstream from the branch point with the pipe 4. 17 is a water flow switch provided in the return pipe 9. The bypass valve 15 is provided with a bypass hole 20 in parallel with a valve port 19 that is opened and closed by a valve body 18 .

上記構成における作用を説明する。まず自動運
転スイツチ(図示せず)が投入されると、落し込
み弁6を開けホツパ13に給湯すると共に三方弁
12をホツパ側に切り換える。そしてバイパス弁
15を開け、三方弁16をバイパス管14側に切
換え戻管9に湯を流しエアパージする。一定時間
後エアパージが終了すると、バイパス弁15を閉
じ三方弁16を往管8側に切換え往管8より浴槽
4内に落し込みを行なう。そして往管8で搬送を
しながら戻管9で水圧のサンプリングを行なうの
である。尚、このとき戻管9にエア置換されるよ
うな配管がされておれば適当な時間間隔で流路を
切り換えてエアパージすればよい。そして設定水
位に達すれば落し込み弁6を閉じるのである。従
来、バイパス管14から戻管9へエアパージを行
つている際中に回路を切換えると、湯は慣性によ
り流れようとし戻管9内は一瞬負圧になり、次い
でこの負圧により湯が引きもどされ正圧になる。
これらの圧変動がウオーターハンマーとなり圧力
センサ11に衝激圧としてかかることになる。し
かも慣性力で流れる湯が浴槽4内に入つたあと引
きもどされる時に空気を吸つてしまうこともあ
る。本考案のものではバイパス弁15の弁口19
をバイパスするバイパス穴20を設けてあるの
で、バイパス弁15が閉じた後もしばらくはバイ
パス穴20に湯が流れ慣性力が序々に弱められて
いく。又、負圧により湯が引きもどされる時もバ
イパス穴20から圧力が逃げるため圧力上昇が抑
えられる。又、三方弁16の動作をバイパス弁1
5とタイムラグを持たせ、バイパス弁15を開く
時は三方弁16を先に切換え、閉じる時は後で切
換えるようにするとよりいつそうウオーターハン
マーの減少が計れる。
The operation of the above configuration will be explained. First, when the automatic operation switch (not shown) is turned on, the drop valve 6 is opened to supply hot water to the hopper 13, and the three-way valve 12 is switched to the hopper side. Then, the bypass valve 15 is opened, the three-way valve 16 is switched to the bypass pipe 14 side, and hot water is flowed into the return pipe 9 for air purging. When the air purge is completed after a certain period of time, the bypass valve 15 is closed, the three-way valve 16 is switched to the outgoing pipe 8 side, and the water is dropped into the bathtub 4 from the outgoing pipe 8. Then, while being transported through the outgoing pipe 8, the water pressure is sampled through the return pipe 9. At this time, if the return pipe 9 is equipped with piping for air replacement, the air purge may be performed by switching the flow path at appropriate time intervals. When the set water level is reached, the drop valve 6 is closed. Conventionally, if the circuit is switched during air purging from the bypass pipe 14 to the return pipe 9, the hot water tries to flow due to inertia, and the inside of the return pipe 9 momentarily becomes negative pressure, and then this negative pressure causes the hot water to return. and becomes positive pressure.
These pressure fluctuations act as water hammer and are applied to the pressure sensor 11 as impact pressure. Moreover, when the hot water flowing due to inertial force enters the bathtub 4 and is pulled back, air may be sucked in. In the present invention, the valve port 19 of the bypass valve 15
Since a bypass hole 20 is provided to bypass the hot water, hot water flows through the bypass hole 20 for a while after the bypass valve 15 is closed, and the inertial force is gradually weakened. Further, even when the hot water is drawn back due to negative pressure, the pressure escapes from the bypass hole 20, so the pressure increase is suppressed. Also, the operation of the three-way valve 16 is changed to the bypass valve 1.
5, so that the three-way valve 16 is switched first when opening the bypass valve 15 and switched later when closing it, so that water hammer can be more quickly reduced.

(考案の効果) 以上のように本考案は、2本の循環管の1本を
搬送用とし、他方を圧検知用とし、圧検知用管を
エアパージする時に開閉させるバイパス弁にバイ
パス穴を設けたので、搬送回路の切換時に生じる
ウオーターハンマーを軽減させることができ、圧
力センサーの長寿命化を計れると共にエア置換の
防止を計ることができ、正確な圧力検出を行うこ
とができるのである。
(Effects of the invention) As described above, in the present invention, one of the two circulation pipes is used for conveyance, the other is used for pressure detection, and a bypass hole is provided in the bypass valve that opens and closes when the pressure detection pipe is air purged. Therefore, the water hammer that occurs when switching the conveyance circuit can be reduced, the life of the pressure sensor can be extended, and air displacement can be prevented, allowing accurate pressure detection.

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

第1図は本考案の一実施例の全体概略図、第2
図はバイパス弁の要部断面図である。 2……給湯器、3……風呂装置、4……浴槽、
8……循環管、9……循環管、11……水圧検出
器、14……バイパス管、15……バイパス弁、
20……バイパス穴。
Fig. 1 is an overall schematic diagram of an embodiment of the present invention;
The figure is a sectional view of the main part of the bypass valve. 2... Water heater, 3... Bath equipment, 4... Bathtub,
8... Circulation pipe, 9... Circulation pipe, 11... Water pressure detector, 14... Bypass pipe, 15... Bypass valve,
20...Bypass hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 浴槽と遠隔位置にある本体より自動落し込みを
追焚循環管を介して行なうものにおいて、ポンプ
吸込側の戻管に三方弁を設け、ポンプ吐出側の往
管から戻管にバイパス弁を有するバイパス管を設
け、前記戻管には圧力センサーを設けると共に、
バイパス回路にはバイパス弁を経由しないバイパ
ス穴を設けたことを特徴とする自動風呂装置。
A bypass system in which automatic dropping is performed from the main body located remotely from the bathtub via a reheating circulation pipe, has a three-way valve on the return pipe on the pump suction side, and a bypass valve on the return pipe from the outgoing pipe on the pump discharge side. A pipe is provided, and a pressure sensor is provided in the return pipe, and
An automatic bath device characterized in that a bypass circuit is provided with a bypass hole that does not pass through a bypass valve.
JP17077786U 1986-11-05 1986-11-05 Expired JPH0243005Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17077786U JPH0243005Y2 (en) 1986-11-05 1986-11-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17077786U JPH0243005Y2 (en) 1986-11-05 1986-11-05

Publications (2)

Publication Number Publication Date
JPS6375747U JPS6375747U (en) 1988-05-20
JPH0243005Y2 true JPH0243005Y2 (en) 1990-11-15

Family

ID=31105807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17077786U Expired JPH0243005Y2 (en) 1986-11-05 1986-11-05

Country Status (1)

Country Link
JP (1) JPH0243005Y2 (en)

Also Published As

Publication number Publication date
JPS6375747U (en) 1988-05-20

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