JPH0699146A - Spray cleaning apparatus - Google Patents
Spray cleaning apparatusInfo
- Publication number
- JPH0699146A JPH0699146A JP10034793A JP10034793A JPH0699146A JP H0699146 A JPH0699146 A JP H0699146A JP 10034793 A JP10034793 A JP 10034793A JP 10034793 A JP10034793 A JP 10034793A JP H0699146 A JPH0699146 A JP H0699146A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- water
- pump
- liquid agent
- cleaning
- 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.)
- Granted
Links
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、洗浄水をポンプで圧
送し手元弁付きのスプレーガンにより噴射させる方式の
スプレー洗浄装置に関し、特に洗剤等の液剤を洗浄水へ
混入させてスプレーできるようにした装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray cleaning apparatus of the type in which cleaning water is pumped and sprayed by a spray gun equipped with a hand valve, and in particular, a liquid agent such as a detergent can be mixed into cleaning water for spraying. Related to the device.
【０００２】[0002]
【従来の技術】従来より、洗剤等の液剤を貯える液剤タ
ンクと、該液剤タンクから洗浄水管路へ液剤を流下させ
る液剤管路とを備え、液剤タンクより液剤を流下させて
洗浄水に混入させ、液剤混合水を噴射できるタイプのス
プレー洗浄装置が知られている。2. Description of the Related Art Conventionally, a liquid agent tank for storing a liquid agent such as a detergent and a liquid agent conduit for allowing the liquid agent to flow down from the liquid agent tank to a cleaning water conduit have been provided. A spray cleaning device of the type capable of spraying liquid agent mixed water is known.
【０００３】また、スプレーガンに手元弁を備えると共
に、ポンプ駆動中に手元弁が閉じられときに開弁してポ
ンプより吐出された洗浄水をポンプの吸込側へ帰還させ
るアンローダバルブを設けて、手元弁の開閉操作により
洗浄水の噴射を自由に止めることができる装置が知られ
ている。Further, the spray gun is provided with a hand valve, and an unloader valve is provided which is opened when the hand valve is closed while the pump is being driven and which returns the cleaning water discharged from the pump to the suction side of the pump. There is known a device capable of freely stopping the injection of washing water by opening and closing a hand valve.
【０００４】[0004]
【発明が解決しようとする課題】そこで、上記した液剤
混合水を噴射する機能と手元で噴射を任意に止める機能
とを併せ持つ装置が考えられる。しかし、液剤混合水の
噴射中に手元弁が閉じられると、液剤管路から洗浄水管
路へ液剤が供給される一方で、洗浄水管路の洗浄水はア
ンローダバルブを介してポンプ吸込側へ帰還されて装置
外へ排出されることがないので、不必要に洗剤が消費さ
れることになり、無駄であるばかりか洗浄水管路に濃度
の高い液剤を滞留させる結果となり、管路詰りの原因と
なる問題があった。Therefore, an apparatus having both the function of injecting the liquid agent mixed water and the function of arbitrarily stopping the injection at hand can be considered. However, if the hand valve is closed during injection of the liquid agent mixed water, the liquid agent is supplied from the liquid agent line to the wash water line, while the wash water in the wash water line is returned to the pump suction side via the unloader valve. Since it is not discharged outside the device, the detergent is consumed unnecessarily, which is not only wasteful but also causes a high concentration of the liquid agent to stay in the cleaning water pipeline, which may cause clogging of the pipeline. There was a problem.
【０００５】したがって、この発明の課題とするところ
は、液剤混合水の噴射中に手元弁が閉じられたら液剤管
路からの液剤の供給を自動的に止めるようにし、上記問
題点を解消できる装置を提供することにある。Therefore, an object of the present invention is to provide an apparatus capable of automatically stopping the supply of the liquid agent from the liquid agent conduit when the hand valve is closed during the injection of the liquid agent mixed water, thereby solving the above-mentioned problems. To provide.
【０００６】[0006]
【課題を解決するための手段】この発明は、洗浄水を貯
える貯水部からスプレーガンへ至る洗浄水管路に高圧ポ
ンプを備え、洗浄水をポンプで圧送し手元弁付きのスプ
レーガンより噴射させて洗浄に供するスプレー洗浄装置
において、前記ポンプの吐出側管路の水圧に応じて開弁
されるアンローダバルブと、該アンローダバルブにより
開路され前記ポンプより吐出された洗浄水を前記ポンプ
の吸込側へ帰還させる帰還管路と、前記アンローダバル
ブの開閉状態に応じて前記手元弁の開閉を検出する手段
と、前記洗浄水管路へ接続し洗剤等の液剤を流下させて
洗浄水へ混入させる液剤管路と、該液剤管路を開閉する
弁手段と、所定の切換入力に応じて前記弁手段を開閉操
作し通常の洗浄水と前記液剤の混合水とを切り換えて噴
射させ、液剤混合水の噴射中に前記検出手段で手元弁が
閉じられたことを検出すると前記弁手段を閉じるように
制御する手段とを備えて、上記課題の解決をはかったも
のである。According to the present invention, a high-pressure pump is provided in a washing water pipe line from a water reservoir for storing washing water to a spray gun, and the washing water is pumped by a pump and sprayed from a spray gun with a hand valve. In a spray cleaning device used for cleaning, an unloader valve that is opened according to the water pressure in the discharge side pipe line of the pump, and the cleaning water that is opened by the unloader valve and discharged from the pump is returned to the suction side of the pump. And a return pipe for detecting the opening / closing of the hand valve according to the open / closed state of the unloader valve, and a liquid agent line connected to the wash water line for flowing down a liquid agent such as detergent to mix it with the wash water. , A valve means for opening and closing the liquid agent conduit, and an opening / closing operation of the valve means in response to a predetermined switching input to switch between normal cleaning water and mixed water of the liquid agents for injection to mix the liquid agents. And means for controlling so as to close the valve means and detects a while injection to hand valve by the detection means is closed, in which attempted to solve the above problems.
【０００７】[0007]
【実施例】以下その具体例について図面を基に説明す
る。図１は本発明一実施例の構成説明図で、１はスプレ
ー洗浄装置本体で、ホース２を延出させその先端にスプ
レーガン３を備えている。このスプレーガン３には手元
弁４が備えられ、レバー５により任意に開閉操作が可能
である。６は前記本体内に備えられる温水装置で、その
内部にはボールタップ７により常に一定水位の水が貯え
られ、バーナ８を運転することによりこの水を加熱す
る。９はモータ１０により駆動されるポンプで、吸入側
は管路１１を介して前記温水装置６と、吐出側は管路１
２を介して前記ホース２とそれぞれ連通し、温水装置６
内の水もしくは温水を圧送し、前記スプレーガン３より
噴射させる。DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific examples will be described below with reference to the drawings. FIG. 1 is a structural explanatory view of an embodiment of the present invention, in which a spray cleaning apparatus main body 1 extends a hose 2 having a spray gun 3 at its tip. The spray gun 3 is provided with a hand valve 4 and can be opened / closed arbitrarily by a lever 5. Reference numeral 6 denotes a hot water device provided in the main body, in which water having a constant water level is always stored by a ball tap 7, and the burner 8 is operated to heat the water. Reference numeral 9 denotes a pump driven by a motor 10. The suction side is connected to the hot water device 6 via a pipe line 11, and the discharge side is connected to the pipe line 1.
2 is connected to the hose 2 via a hot water device 6
The water or warm water in the inside is pressure-fed and jetted from the spray gun 3.
【０００８】１３は洗剤液を貯える洗剤タンクで、管路
１４を介して前記管路１１に備えられる混合器１５と連
通しており、この混合器１５では管路１１を流れる水に
管路１４より送られて来る洗剤液を混合させる。１６は
管路１４に設けられる電磁弁、１７は同じく管路１４に
設けられる流量調節弁で、電磁弁１６を開くことにより
スプレーガン３より噴射する洗浄水を洗剤混合水とし、
閉じることにより洗浄水をただの水もしくは温水として
おり、また調節弁１７により前記洗剤混合水の洗剤濃度
を調節する。Reference numeral 13 denotes a detergent tank for storing a detergent liquid, which communicates with a mixer 15 provided in the pipe 11 via a pipe 14. In the mixer 15, water flowing in the pipe 11 is connected to the pipe 14. Mix the detergent liquid sent from you. Reference numeral 16 is a solenoid valve provided in the pipe line 14, 17 is a flow rate control valve also provided in the pipe line 14, and the washing water sprayed from the spray gun 3 by opening the solenoid valve 16 is detergent mixed water,
By closing, the wash water is just water or warm water, and the control valve 17 adjusts the detergent concentration of the detergent mixed water.
【０００９】１８は前記ポンプ吐出側管路１２に備えら
れるアンローダバルブで、ポンプ９の駆動中に手元弁４
が閉じられる等してポンプ９の吐出側の水圧が通常の洗
浄で使用される吐出圧（本例では約７０kg/cm2）を上回
る高圧（本例では８０〜９０kg/cm2）に達すると開弁さ
れ、水圧が所定の低圧（本例では１０〜２０kg/cm2）以
下に降下するまで開弁を保持するよう動作するもので、
開弁により洗浄水は帰還管路１９を介して前記温水装置
６へ帰還される。Reference numeral 18 denotes an unloader valve provided in the pump discharge side pipe line 12, which is provided on the hand valve 4 while the pump 9 is being driven.
When the water pressure on the discharge side of the pump 9 reaches a high pressure (80 to 90 kg / cm 2 in this example) that exceeds the discharge pressure used in normal cleaning (about 70 kg / cm 2 in this example) by closing the The valve is opened and operates to hold the valve open until the water pressure drops below a predetermined low pressure (10 to 20 kg / cm 2 in this example).
By opening the valve, the wash water is returned to the hot water device 6 through the return pipe line 19.
【００１０】２０は帰還管路１９より分岐し前記本体１
外へ開口する排出管路、２１・２２は管路１９及び管路
２０に設けられる電磁弁で、常時は２１が開弁、２２が
閉弁された状態にあり、洗浄水を温水装置６へ帰還させ
るよう管路１９を形成している。ここで、アンローダバ
ルブ１８の開弁の際に洗浄水が前記電磁弁１６を開弁し
て洗剤水とされている場合は、洗剤水が温水装置６内に
混入されないよう、弁２１を閉じ、弁２２を開いて洗剤
水を本体１外へ排出するよう管路の切換えを行なう。Numeral 20 is branched from the return conduit 19 to the main body 1
A discharge pipe line that opens to the outside, 21 and 22 are electromagnetic valves provided in the pipe lines 19 and 20, and 21 is normally open and 22 is closed, and the wash water is supplied to the water heater 6. The conduit 19 is formed so as to be returned. Here, when the wash water is used as detergent water by opening the solenoid valve 16 when the unloader valve 18 is opened, the valve 21 is closed so that the detergent water is not mixed into the warm water device 6, The valve 22 is opened and the pipeline is switched so that the detergent water is discharged to the outside of the main body 1.
【００１１】２５は前記帰還管路１９に備えられる検出
手段たる圧力スイッチで、ポンプ９の駆動中に手元弁４
が閉じられる等して前記アンローダバルブ１８が開弁
し、洗浄水の大部分が帰還管路１９へ流れ込んで所定圧
以上（本例では１０〜２０kg/cm2）の通水が生じたのを
検出する。２６は帰還管路１９の圧力スイッチ２５より
下流に位置して設けられる流量絞り部で、オリフィス等
により適宜管路抵抗を与えて圧力スイッチ２５の作動を
確実なものとする。Reference numeral 25 denotes a pressure switch which is a detecting means provided in the return conduit 19 and which operates the hand valve 4 while the pump 9 is being driven.
When the unloader valve 18 is opened by closing the valve, most of the washing water flows into the return conduit 19 and water of a predetermined pressure or more (10 to 20 kg / cm 2 in this example) is generated. To detect. Reference numeral 26 is a flow restricting portion provided downstream of the pressure switch 25 in the return pipe line 19, which appropriately applies pipe resistance by an orifice or the like to ensure the operation of the pressure switch 25.
【００１２】２３は前記吐出側管路１２に前記アンロー
ダバルブ１８により開放される帰還管路１９への分岐点
より下流に位置して設けられる逆止弁、２４は該逆止弁
２３より更に下流に位置して吐出側管路１２内の圧力を
検出する圧力スイッチで、ポンプ９の駆動に伴い吐出さ
れる洗浄水が所定圧（前記した通常の洗浄時の水圧より
低く、本例では２０〜５０kg/cm2）に至ったのを検出す
る。Reference numeral 23 is a check valve provided in the discharge side pipeline 12 downstream of a branch point to the return pipeline 19 opened by the unloader valve 18, and 24 is further downstream of the check valve 23. Is a pressure switch for detecting the pressure in the discharge side pipeline 12, and the cleaning water discharged with the drive of the pump 9 is at a predetermined pressure (lower than the water pressure during the normal cleaning described above, 20 to 20 in this example). It is detected that it has reached 50 kg / cm 2 ).
【００１３】以上の構成を有する洗浄装置において、ポ
ンプ９が駆動しスプレーノズル３の手元弁４が開弁され
るとスプレー洗浄が開始され、その噴射される洗浄水
は、温水装置６においてバーナ８を運転しなければ冷
水、運転すれば温水、更に電磁弁１６を開けば洗剤水と
なる。ポンプ９の駆動中、手元弁４が閉じられると、吐
出側管路１２内の洗浄水圧が上昇しアンローダバルブ１
８が押し開かれ、洗浄水は帰還管路１９により温水装置
６内へ戻される。更にこの状態で手元弁４が再び開弁さ
れると、洗浄水はスプレーガン３側に開放されアンロー
ダバルブ１８を開弁していた水圧が急激に失われてアン
ローダバルブ１８が閉じ、スプレー洗浄が再開される。In the cleaning apparatus having the above construction, when the pump 9 is driven and the hand valve 4 of the spray nozzle 3 is opened, spray cleaning is started, and the sprayed cleaning water is burner 8 in the hot water apparatus 6. If it is not operated, it becomes cold water, if it is operated, it becomes hot water, and when the solenoid valve 16 is opened, it becomes detergent water. When the hand valve 4 is closed while the pump 9 is being driven, the wash water pressure in the discharge side conduit 12 rises and the unloader valve 1
8 is pushed open, and the wash water is returned to the inside of the hot water device 6 by the return line 19. Further, when the hand valve 4 is opened again in this state, the cleaning water is released to the spray gun 3 side, the water pressure that has opened the unloader valve 18 is suddenly lost, the unloader valve 18 is closed, and the spray cleaning is performed. It will be restarted.
【００１４】圧力スイッチ２５は、ポンプ９駆動中に手
元弁４が閉じられアンローダバルブ１８が開弁されて、
ポンプ９からの全洗浄水が帰還管路１９内に流れること
によってＯＮ状態となり、手元弁４が再開されアンロー
ダバルブ１８が閉じると、これに応じてＯＦＦ状態とな
る。従って、圧力スイッチ２５は、ポンプ９駆動中の手
元弁４の開閉に応じてＯＮ／ＯＦＦされることになる。In the pressure switch 25, the hand valve 4 is closed and the unloader valve 18 is opened while the pump 9 is driven,
When all the washing water from the pump 9 flows into the return conduit 19 to be turned on, and when the hand valve 4 is restarted and the unloader valve 18 is closed, it is turned off accordingly. Therefore, the pressure switch 25 is turned ON / OFF according to the opening / closing of the hand valve 4 while the pump 9 is being driven.
【００１５】一方、圧力スイッチ２４は、ポンプ９の駆
動に伴う洗浄水の吐出圧を検出してＯＮ状態となり、途
中で手元弁４が閉じられアンローダバルブ１８が開いた
後も、逆止弁２３により該弁２３の下流の管路内は蓄圧
された状態となりＯＮ状態が保持される。従って圧力ス
イッチ２４は、ポンプ９の駆動停止後に手元弁４が開か
れて、逆止弁２３下流の管路がスプレーガン３において
開放されるまでＯＦＦされることはない。On the other hand, the pressure switch 24 detects the discharge pressure of the wash water accompanying the drive of the pump 9 and is turned on, and the check valve 23 is opened even after the hand valve 4 is closed and the unloader valve 18 is opened midway. As a result, the inside of the pipeline downstream of the valve 23 is in a pressure-accumulated state and the ON state is maintained. Therefore, the pressure switch 24 is not turned off until the hand valve 4 is opened after the driving of the pump 9 is stopped and the pipeline downstream of the check valve 23 is opened in the spray gun 3.
【００１６】図２は上記実施例の制御系を示すブロック
図である。３０は洗浄装置本体１の前面に設けられる操
作パネルで、電源スイッチ３１のほか、洗浄の開始又は
終了の操作を行なう運転キー３２、スプレーしている洗
浄水の区別を点灯表示するＬＥＤ３３−１〜３より成る
表示部３４が備えられている。FIG. 2 is a block diagram showing the control system of the above embodiment. Reference numeral 30 denotes an operation panel provided on the front surface of the main body 1 of the cleaning apparatus. In addition to the power switch 31, an operation key 32 for starting or ending the cleaning operation, and LEDs 33-1 through 3-3 for illuminating and indicating the cleaning water being sprayed A display unit 34 of 3 is provided.
【００１７】３５は制御部で、操作パネル３０及び前記
圧力スイッチ２４・２５からの信号に応じて各部の制御
を行なうもので、温水装置６におけるバーナ８の駆動回
路３６、ポンプ９の駆動回路３７、電磁弁１６の駆動回
路３８、電磁弁２１・２２の駆動回路３９、表示部３４
の駆動回路４０、及び制御回路４１から成っている。制
御回路４１は、入出力回路４２・ＣＰＵ４３及びメモリ
回路４４から成り、いわゆるマイクロコンピュータを構
成している。Reference numeral 35 denotes a control unit which controls each unit in response to signals from the operation panel 30 and the pressure switches 24 and 25. The drive circuit 36 for the burner 8 and the drive circuit 37 for the pump 9 in the water heater 6. , Drive circuit 38 of solenoid valve 16, drive circuit 39 of solenoid valves 21 and 22, display unit 34
Drive circuit 40 and control circuit 41. The control circuit 41 comprises an input / output circuit 42, a CPU 43 and a memory circuit 44, and constitutes a so-called microcomputer.
【００１８】図３は上記実施例のメモリ回路４４に書き
込まれたプログラムの概要を表すフローチャート図、図
４はポンプ９及び圧力スイッチ２４・２５それぞれの作
動状態を表すタイムチャート図で、以下この両図を基に
実施例の具体的動作を説明する。FIG. 3 is a flow chart showing the outline of the program written in the memory circuit 44 of the above embodiment, and FIG. 4 is a time chart showing the operating states of the pump 9 and the pressure switches 24 and 25, respectively. A specific operation of the embodiment will be described with reference to the drawings.
【００１９】操作パネル３０において電源ＯＮされると
プログラムスタートする。操作パネル３０において運転
キー３２が押されると(１)、ポンプ９を駆動すると共に
表示部３４においてＬＥＤ３３−１を点灯し(２)、まず
冷水スプレーのモードで運転を開始する。When the power is turned on in the operation panel 30, the program starts. When the operation key 32 is pressed on the operation panel 30 (1), the pump 9 is driven and the LED 33-1 is turned on in the display unit 34 (2), and the operation is first started in the cold water spray mode.
【００２０】次に圧力スイッチ２４・２５の状態をモニ
タし、スプレーガン３において手元弁４が開弁されてス
プレー洗浄が開始されたか否かを確認する(３)。すなわ
ち、ポンプ９が起動すると圧力スイッチ２４がＯＮに転
じ、更に作業開始前で手元弁４が閉じられているとアン
ローダバルブ１８が押し開かれて圧力スイッチ２５がＯ
Ｎに転じる。この状態で手元弁４が開かれると、アンロ
ーダバルブ１８が閉じて圧力スイッチ２５がＯＦＦに転
じるのである。Next, the states of the pressure switches 24 and 25 are monitored to check whether or not the hand valve 4 of the spray gun 3 has been opened to start spray cleaning (3). That is, when the pump 9 is started, the pressure switch 24 is turned on, and when the hand valve 4 is closed before starting the work, the unloader valve 18 is pushed open and the pressure switch 25 is turned on.
Turn to N. When the hand valve 4 is opened in this state, the unloader valve 18 is closed and the pressure switch 25 is turned off.
【００２１】こうしてステップ(３)で手元弁４の開弁が
一旦確認されると、引き続いて圧力スイッチ２４・２５
の状態をモニタし手元弁４が閉弁されたか否かを監視す
る(４)。すなわち、手元弁１４が閉じられアンローダバ
ルブ１８が開弁して圧力スイッチ２５がＯＮに転じるの
を検出する。In this way, once the opening of the hand valve 4 is confirmed in step (3), the pressure switches 24 and 25 are subsequently turned on.
Is monitored to see if the hand valve 4 is closed (4). That is, it is detected that the hand valve 14 is closed, the unloader valve 18 is opened, and the pressure switch 25 is turned on.
【００２２】ステップ(４)で手元弁４が閉じられたのを
検出すると、洗浄水が洗剤水である洗剤モードで成され
ていたか否かを確認し(５)、洗剤モードであれば電磁弁
１６を閉じると共に一定時間Ｔ0（本例では２〜３秒）
の間だけ電磁弁２１を閉じ、電磁弁２２を開いて(６)、
前記帰還管路１９へ流入した洗剤水を管路２０より本体
１外へ排出する。When it is detected in step (4) that the hand valve 4 is closed, it is confirmed whether or not the washing water is in the detergent mode which is the detergent water (5). 16 is closed and a certain time T 0 (2 to 3 seconds in this example)
Only while the solenoid valve 21 is closed, the solenoid valve 22 is opened (6),
The detergent water flowing into the return conduit 19 is discharged from the main body 1 through the conduit 20.
【００２３】更に、ステップ(４)で手元弁４が閉弁され
た時点からタイムカウントを始め、一定時間Ｔ1（本例
では２〜３秒）の間に圧力スイッチ２５の状態に変化が
生じたか否か、すなわち手元弁４が再び開弁されて圧力
スイッチ２５がＯＦＦに転じたか否かを監視する(７)。Furthermore, in step (4), the time counting is started from the time when the hand valve 4 is closed, and the state of the pressure switch 25 changes during a certain time T 1 (2 to 3 seconds in this example). It is monitored whether or not, that is, whether the hand valve 4 is opened again and the pressure switch 25 is turned off (7).
【００２４】ここで、変化が認められれば、洗剤水の切
換命令有りと判断して、ステップ(８)(９)においてそれ
まで噴射していた洗浄水が水・温水又は洗剤水のいずれ
であったかを確認し、冷水モードであれば温水装置６の
バーナ８を運転して温水モードに切換え(10)、温水モー
ドであれば更に電磁弁１６を開いて洗剤モードに切換え
(11)、洗剤モードであればバーナ８の運転を停止すると
共に電磁弁６を閉じて冷水モードに切換える(12)、とい
ったように動作し、それぞれ洗浄水を切り換えてスプレ
ー洗浄が再開される。If a change is recognized, it is determined that there is a detergent water switching command, and in step (8) or (9), whether the washing water that has been sprayed until then is water / warm water or detergent water. In the cold water mode, the burner 8 of the hot water device 6 is operated to switch to the hot water mode (10). In the hot water mode, the solenoid valve 16 is further opened to switch to the detergent mode.
(11) In the detergent mode, operation of the burner 8 is stopped and the electromagnetic valve 6 is closed to switch to the cold water mode (12). The cleaning water is switched to restart spray cleaning.
【００２５】前記ステップ(７)で変化が認められなけれ
ば、更に一定時間Ｔ2（本例ではＴ1＋Ｔ2＝１０秒）待
機し(13)、この間に手元弁４が開かれるといった操作が
一度もなければポンプ９の運転を停止する(14)。一方そ
の間に手元弁４が開かれて圧力スイッチ２５がＯＦＦに
転じれば、まずそれまで実行していたモードを確認し(1
5)、洗剤モードであればステップ(６)で閉じられている
電磁弁１６を開く(16)よう動作してステップ(３)へリタ
ンし、それまで行なっていたモードのまま洗浄を再開す
る。If no change is recognized in step (7), a certain time T 2 (T 1 + T 2 = 10 seconds in this example) is further waited (13), during which the hand valve 4 is opened. If not once, the operation of the pump 9 is stopped (14). On the other hand, if the hand valve 4 is opened and the pressure switch 25 is turned off during that time, first confirm the mode that has been executed until then (1
5) In the detergent mode, the solenoid valve 16 closed in step (6) is operated to open (16), and the process returns to step (3), and the cleaning is restarted in the mode that has been used.
【００２６】ステップ(14)においてポンプ停止後、更に
一定時間Ｔ3（本例では３分）の間何の変化もなく放置
されるか(17)、操作パネル３０において運転キー３２が
押されると(18)、洗浄作業終了と判断して表示部３４の
ＬＥＤ３３を消灯しバーナ８を停止、電磁弁１６を開き
(19)リタンする。一方、前記Ｔ3の間に開弁されると、
これを圧力スイッチ２４で検出して(20)、ポンプ９を駆
動し(21)ステップ(15)(16)を介してステップ(３)よりそ
れ以前に行なっていたモードのまま洗浄を開始する。After the pump is stopped in step (14), the pump is left without any change for a certain time T 3 (3 minutes in this example) (17), or the operation key 32 is pressed on the operation panel 30. (18) When it is judged that the cleaning work is completed, the LED 33 of the display unit 34 is turned off, the burner 8 is stopped, and the solenoid valve 16 is opened.
(19) Return. On the other hand, if the valve is opened during the T 3 ,
This is detected by the pressure switch 24 (20), the pump 9 is driven (21), and the cleaning is started in the mode previously performed from step (3) through steps (15) and (16).
【００２７】尚、ステップ(20)では、ポンプ９の停止に
より圧力スイッチ２５はＯＦＦされている一方で、圧力
スイッチ２４は逆止弁２３の作用で逆止弁２３下流の管
路に洗浄水圧が蓄圧されＯＮ状態に保持されており、手
元弁４が開弁され、前記蓄圧された水圧がスプレーガン
３より開放されて圧力スイッチ２４がＯＦＦに転じるの
を検出している。In step (20), the pressure switch 25 is turned off by stopping the pump 9, while the pressure switch 24 is operated by the check valve 23 so that the washing water pressure is applied to the pipe line downstream of the check valve 23. It is detected that the pressure is accumulated and kept in the ON state, the hand valve 4 is opened, the accumulated water pressure is released from the spray gun 3, and the pressure switch 24 is turned off.
【００２８】上記のごとく、本実施例では２個の圧力ス
イッチ２４・２５をモニタすることにより、各状態での
手元弁４の開閉操作を検出し、これにより使用者の命令
を判断して、ポンプ９のＯＮ／ＯＦＦをはじめ、洗浄水
の切換えを行なっている。すなわち、洗浄中に手元弁４
が閉じられ一定時間Ｔ1以内に手元弁４が再び開弁され
れば、洗浄水切換命令と判断して洗浄水の切換えを行な
い、前記Ｔ1以内に開弁されなければ待機中と判断し、
それまでの洗浄水のモードを切換えることなく再動作可
能な状態でＴ2＋Ｔ3の間待機する。待機時間中、Ｔ2だ
け経過するとポンプ９を停止して、動力の節減を計って
いる。As described above, in this embodiment, by monitoring the two pressure switches 24 and 25, the opening / closing operation of the hand valve 4 in each state is detected, and the user's command is judged by this. The washing water is switched including turning ON / OFF the pump 9. That is, the hand valve 4 during cleaning
Is closed and the hand valve 4 is opened again within a certain time T 1, it is judged that it is a cleaning water switching command and the cleaning water is switched. If it is not opened within the above T 1 , it is judged to be in standby. ,
It waits for T 2 + T 3 in a state in which it can be restarted without switching the mode of the wash water until then. During the standby time, the pump 9 is stopped when T 2 has elapsed, and the power is saved.
【００２９】なお、上記実施例ではアンローダーバルブ
１８と逆止弁２３とを別々に設けた例を示したが、逆止
弁構造を具備した公知の調圧機能付きアンローダバルブ
を用いれば、改めて逆止弁２３を設ける必要がない。ま
た実施例では、手元弁４の開閉を検出する手段として帰
還流路１９の水圧上昇によりアンローダバルブの開閉状
態を検知する圧力スイッチ２５を用いたが、この他にも
例えばアンローダバルブ１８が開くときの機械動作を検
出するマイクロスイッチ等を用いることができる。In the above embodiment, the unloader valve 18 and the check valve 23 are provided separately, but if a known unloader valve with a pressure regulating function having a check valve structure is used, it will be re-established. It is not necessary to provide the check valve 23. Further, in the embodiment, the pressure switch 25 for detecting the open / close state of the unloader valve by the increase in the water pressure of the return flow path 19 is used as the means for detecting the open / close state of the hand valve 4. It is possible to use a micro switch or the like for detecting the mechanical operation of the.
【００３０】[0030]
【発明の効果】このように本発明によれば、アンローダ
バルブの開閉状態により手元弁の開閉を検出し、液剤混
合水の噴射中に手元弁が閉じられれば弁手段を閉じて液
剤管路からの液剤の流下を止めるので、液剤を無駄にし
たり管路詰りを招く不都合を解消することができる。As described above, according to the present invention, the opening / closing of the hand valve is detected by the opening / closing state of the unloader valve, and if the hand valve is closed during the injection of the liquid mixture water, the valve means is closed to remove the liquid from the liquid conduit. Since the flow of the liquid agent is stopped, it is possible to eliminate the inconvenience of wasting the liquid agent and clogging the conduit.
【図１】本発明一実施例の構成説明図である。FIG. 1 is a structural explanatory view of an embodiment of the present invention.
【図２】実施例の制御系を示すブロック図である。FIG. 2 is a block diagram showing a control system of the embodiment.
【図３】実施例の動作プログラムの概要を示すフローチ
ャート図である。FIG. 3 is a flowchart showing an outline of an operation program of the embodiment.
【図４】実施例の作動を表すタイムチャート図である。FIG. 4 is a time chart showing the operation of the embodiment.
１ 洗浄装置本体 ３ スプレーガン ４ 手元弁 ９ ポンプ １４ 液剤管路 １８ アンローダバルブ １９ 帰還管路 ２５ 検出手段たる圧力スイッチ ３５ 制御手段たる制御部 1 Cleaning Device Main Body 3 Spray Gun 4 Hand Valve 9 Pump 14 Liquid Agent Pipeline 18 Unloader Valve 19 Return Pipeline 25 Pressure Switch as Detection Means 35 Control Unit as Control Means
Claims (1)
へ至る洗浄水管路に高圧ポンプを備え、洗浄水をポンプ
で圧送し手元弁付きのスプレーガンより噴射させて洗浄
に供するスプレー洗浄装置において、前記ポンプの吐出
側管路の水圧に応じて開弁されるアンローダバルブと、
該アンローダバルブにより開路され前記ポンプより吐出
された洗浄水を前記ポンプの吸込側へ帰還させる帰還管
路と、前記アンローダバルブの開閉状態に応じて前記手
元弁の開閉を検出する手段と、前記洗浄水管路へ接続し
洗剤等の液剤を流下させて洗浄水へ混入させる液剤管路
と、該液剤管路を開閉する弁手段と、所定の切換入力に
応じて前記弁手段を開閉操作し通常の洗浄水と前記液剤
の混合水とを切り換えて噴射させ、液剤混合水の噴射中
に前記検出手段で手元弁が閉じられたことを検出すると
前記弁手段を閉じるように制御する手段とを備えたこと
を特徴とするスプレー洗浄装置。1. A spray cleaning apparatus comprising a high-pressure pump in a cleaning water pipe line from a water storage part for storing cleaning water to a spray gun, wherein the cleaning water is pumped by a pump and sprayed from a spray gun equipped with a hand valve for cleaning. An unloader valve that is opened according to the water pressure in the discharge side pipeline of the pump,
A return conduit for returning the cleaning water discharged from the pump by the unloader valve to the suction side of the pump; a means for detecting the opening / closing of the hand valve according to the opening / closing state of the unloader valve; A liquid agent pipeline connected to a water pipeline to allow a liquid agent such as detergent to flow down and mix into the wash water, valve means for opening and closing the liquid agent pipeline, and opening and closing the valve means according to a predetermined switching input to open and close the normal And a means for controlling to close the valve means when detecting that the hand valve is closed by the detection means during the injection of the liquid medicine mixed water. A spray cleaning device characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5100347A JP2527127B2 (en) | 1993-04-01 | 1993-04-01 | Spray cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5100347A JP2527127B2 (en) | 1993-04-01 | 1993-04-01 | Spray cleaning device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24856986A Division JPH069678B2 (en) | 1986-10-20 | 1986-10-20 | Spray cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0699146A true JPH0699146A (en) | 1994-04-12 |
| JP2527127B2 JP2527127B2 (en) | 1996-08-21 |
Family
ID=14271580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5100347A Expired - Fee Related JP2527127B2 (en) | 1993-04-01 | 1993-04-01 | Spray cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2527127B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100760996B1 (en) * | 2006-11-27 | 2007-09-21 | 김태영 | Steam cleaning apparatus and driving method thereof |
| JP2016525441A (en) * | 2013-07-19 | 2016-08-25 | プロドーズ | Aircraft drinking water supply pipe cleaning equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2832803B2 (en) | 1994-12-31 | 1998-12-09 | 株式会社共和製作所 | Cleaning device and pressure switch for cleaning device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146569A (en) * | 1979-05-04 | 1980-11-14 | Matsushita Electric Ind Co Ltd | Card terminal equipment |
| JPS60150489A (en) * | 1983-11-25 | 1985-08-08 | クヌーズ エリク ヴェスターゴー | High-pressure cleaning unit with bypath valve |
-
1993
- 1993-04-01 JP JP5100347A patent/JP2527127B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146569A (en) * | 1979-05-04 | 1980-11-14 | Matsushita Electric Ind Co Ltd | Card terminal equipment |
| JPS60150489A (en) * | 1983-11-25 | 1985-08-08 | クヌーズ エリク ヴェスターゴー | High-pressure cleaning unit with bypath valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100760996B1 (en) * | 2006-11-27 | 2007-09-21 | 김태영 | Steam cleaning apparatus and driving method thereof |
| JP2016525441A (en) * | 2013-07-19 | 2016-08-25 | プロドーズ | Aircraft drinking water supply pipe cleaning equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2527127B2 (en) | 1996-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2996751B2 (en) | Dishwashing equipment | |
| JPH0699146A (en) | Spray cleaning apparatus | |
| JPH069678B2 (en) | Spray cleaning device | |
| JPH07265815A (en) | Spray cleaning device | |
| JP4603343B2 (en) | Automatic hand washing equipment | |
| JP2778503B2 (en) | Liquid level control device | |
| JP3378899B2 (en) | Cleaning equipment | |
| JP2002322698A (en) | Washing method and device using wash water | |
| JP2573199Y2 (en) | Automatic operation device for washing machine | |
| JP3056205B1 (en) | Water-based automatic fire extinguishing equipment | |
| JP3896267B2 (en) | Beverage dispenser | |
| JP2596338Y2 (en) | Car wash equipment | |
| JPH081165Y2 (en) | Car wash equipment | |
| JP4069680B2 (en) | Local cleaning equipment | |
| JP2970402B2 (en) | Ozone water cleaning device | |
| KR100401762B1 (en) | System for preventing icing washer liquid | |
| JPH08266971A (en) | Washing apparatus | |
| JPH08270804A (en) | Bidirectional switching valve device | |
| JPH0344867Y2 (en) | ||
| JPH0353750Y2 (en) | ||
| JP2823444B2 (en) | Cleaning equipment | |
| JPH0515990Y2 (en) | ||
| JP2002266387A (en) | Remaining warm water conveying equipment | |
| JP2006068658A (en) | Spray washing apparatus | |
| JP2547418Y2 (en) | Local cleaning equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |