JP4421695B2 - Liquid ejection device - Google Patents

Liquid ejection device Download PDF

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Publication number
JP4421695B2
JP4421695B2 JP11202999A JP11202999A JP4421695B2 JP 4421695 B2 JP4421695 B2 JP 4421695B2 JP 11202999 A JP11202999 A JP 11202999A JP 11202999 A JP11202999 A JP 11202999A JP 4421695 B2 JP4421695 B2 JP 4421695B2
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JP
Japan
Prior art keywords
pressure
nozzle
low
pipe
jet pump
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
Application number
JP11202999A
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Japanese (ja)
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JP2000304000A (en
Inventor
幸郎 有光
康邦 五所尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arimitsu Industry Co Ltd
Original Assignee
Arimitsu Industry Co Ltd
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 by Arimitsu Industry Co Ltd filed Critical Arimitsu Industry Co Ltd
Priority to JP11202999A priority Critical patent/JP4421695B2/en
Publication of JP2000304000A publication Critical patent/JP2000304000A/en
Application granted granted Critical
Publication of JP4421695B2 publication Critical patent/JP4421695B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の技術分野】
この発明は、洗浄機などにおいて、高圧水と低圧水を切換えて噴射できるようにした吐出装置に関する。
【0002】
【従来の技術】
例えば、往復動ポンプによる高圧洗浄機は、一般に高圧力であるが少水量であって、汚れは剥離洗浄によって除去できるが、洗浄後の洗い流しには水量が少ないため長時間を要している。
【0003】
【発明の課題】
そこで、高圧洗浄を行なった後、別のポンプに切換えて低圧大量の水で洗い流すことが考えられるが、一個の装置によって切換え可能にするためには、装置が複雑大形化する問題がある。
【0004】
この発明の課題は、上記の問題を解決し、一個のポンプを用いて簡単な機構により高圧少量、低圧大量の液体を吐出できるようにすることである。
【0005】
【課題の解決手段】
上記の課題を解決するために、この発明においては、高圧吐出用ポンプの吸引管を液体タンクに没入し、前記ポンプの高圧吐出管路を高圧用ノズル及びジェットポンプの駆動管に接続し、前記ジェットポンプの低圧吐出管を前記吸引管の途中に接続し、前記駆動管の噴出口を前記低圧吐出管の出口方向に向け、前記出口の先端に低圧用ノズルを設け、前記ジェットポンプの駆動管内にばねで負荷された逆止弁を設けて高圧用ノズルが開いているときにジェットポンプが作動しないようにし、高圧用ノズルを閉じ低圧用ノズルを開くと前記逆止弁が開いてジェットポンプにより低圧水を吐出するようにした構成を採用したのである。
【0006】
高圧用ノズルと低圧用ノズルを設け、それらの開閉に応じて、高圧少量の液体を吐出して例えば被洗浄物の汚れを剥離洗浄することができ、低圧用ノズルを開くと、前記高圧液をジェットポンプの駆動用として利用することにより、低圧大量の液体を吐出して洗い流すことができる。
【0007】
【実施の形態】
以下、この発明の実施形態を添付図面に基づいて説明する。図示のように、タンク1には、水等の液体Aが収納され、モータMで駆動される高圧吐出用ポンプP(例えば往復動ポンプ)によって吸引管2及びその下端のストレーナ2aを介してタンク1内の液体Aが吸引され、ポンプPから高圧吐出管路3に吐出される。この管路3の先端には、ノズルN1が取り付けられている。また、高圧吐出管路3の途中には、圧力計4及び圧力制御弁5が接続されている。この圧力制御弁5は、吐出液圧が一定以上になると第1の分岐路6を吸引管2に連通して吸引管2にオーバフロー液を返戻するようになっている。
【0008】
前記吸引管2の途中には、分岐管2bが設けられ、この分岐管2bにジェットポンプ10が接続されている。ジェットポンプ10の駆動管11は、高圧吐出管路3の第2の分岐路7に接続され、駆動管11の噴射口11aは分岐管2bに続く低圧吐出管12のスロットル12aの方向に向いている。図中符号11bは駆動管11内に設けられた、ばねで負荷された第1の逆止弁、12bは低圧吐出管12内に設けられた第2の逆止弁、N2はノズルである。
【0009】
いま、モータMによってポンプPを駆動し、ノズルN1を開くと、タンク1内の液体Aは、吸引管2から吸引され高圧吐出管路3を通ってノズルN1より高圧で吐出される。しかしこの吐出液は小量である。一方ジェットポンプ10は、第1の逆止弁11b、第2の逆止弁12bの作用によって作動しない。
【0010】
この状態でノズルNを閉じると、高圧水は、第2の分岐路7を通り駆動管11のばねで負荷された第1の逆止弁11bを押し開いて噴射口11aからスロットル12aに向けて噴出する。この射出作用で負圧になった分岐管2b内に吸引管2から液体Aが吸い込まれ、スロットル12aで加圧された比較的大量の液体Aが第2の逆止弁12bを押し開いて低圧吐出管12から吐出される。
【0011】
なお、分岐路7は必ずしも定常的に設けておく必要はなく、ノズルN1 を設けたホース等の管路を、ノズルN1 を外してジェットポンプ10の駆動管11に接続することによって、その都度形成してもよい。また、図示のように、高圧用ノズルN1 と低圧用ノズルN2 を設けておくと、被洗浄物の一部の汚れを高圧水で剥離したのちノズルN1 を閉じノズルN2 を開くと低圧水が吐出するので洗い流すことができ、この動作を順次繰り返して全体を洗浄することができる。
【0012】
この発明の吐出装置は、上記のような洗浄機以外にも、排水処理、液体の輸送散水等にも利用することができる。
【0013】
【発明の効果】
この発明によれば、以上のように、高圧吐出用ポンプを用い、ジェットポンプを利用して低圧大量の液体を吐出できるようにしたので、物体の洗浄時などでまず頑固な汚れを高圧水で剥離した後、低圧水で洗い流すことができ、短時間で効率よく洗浄できる効果がある。
【図面の簡単な説明】
【図1】この発明の液体吐出装置を示す線図
【符号の説明】
1 タンク
2 吸引管
2a ストレーナ
2b 分岐管
3 高圧吐出管路
4 圧力計
5 圧力制御弁
6 第1の分岐路
7 第2の分岐路
10 ジェットポンプ
11 駆動管
11a 噴射口
11b 第1の逆止
12 低圧吐出管
12a スロットル
12b 第2の逆止弁
A 液体
M モータ
、N ノズル
P ポンプ
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a discharge device capable of switching and injecting high pressure water and low pressure water in a washing machine or the like.
[0002]
[Prior art]
For example, a high-pressure washing machine using a reciprocating pump generally has a high pressure but a small amount of water, and dirt can be removed by peeling washing. However, the washing after washing takes a long time because the amount of water is small.
[0003]
[Problems of the Invention]
Therefore, it is conceivable to switch to another pump after high-pressure cleaning, and flush with a large amount of low-pressure water. However, in order to enable switching with a single device, there is a problem that the device becomes complicated and large.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to discharge a large amount of liquid with a small amount of high pressure and a large amount of low pressure with a simple mechanism using a single pump.
[0005]
[Means for solving problems]
In order to solve the above problems, in the present invention, the suction pipe of the high-pressure discharge pump is immersed in the liquid tank, the high-pressure discharge pipe of the pump is connected to the high-pressure nozzle and the drive pipe of the jet pump, A jet pump low pressure discharge pipe connected in the middle of the suction pipe, a jet outlet of the drive pipe directed in an outlet direction of the low pressure discharge pipe, a low pressure nozzle provided at a tip of the outlet, and the jet pump drive pipe A check valve that is loaded with a spring is provided to prevent the jet pump from operating when the high-pressure nozzle is open. When the high-pressure nozzle is closed and the low-pressure nozzle is opened, the check valve opens and the jet pump Therefore, a configuration in which low-pressure water is discharged is adopted.
[0006]
Provided a high-pressure nozzle and a low pressure nozzle, according to their opening and closing, high pressure a small amount of dirt liquid was discharged for example the object to be cleaned can be peeled off the cleaning, opening the low-pressure nozzle, the high pressure liquid by utilizing a drive of the jet pump, it can be washed out by discharging the low-pressure large quantities of liquids.
[0007]
Embodiment
Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in the figure, a tank 1 contains a liquid A such as water, and is driven by a high-pressure discharge pump P (for example, a reciprocating pump) driven by a motor M via a suction pipe 2 and a strainer 2a at the lower end thereof. The liquid A in 1 is sucked and discharged from the pump P to the high-pressure discharge line 3. The distal end of the conduit 3, which is attached Roh nozzle N 1. Further, a pressure gauge 4 and a pressure control valve 5 are connected in the middle of the high-pressure discharge pipe 3. The pressure control valve 5 communicates the first branch path 6 with the suction pipe 2 and returns the overflow liquid to the suction pipe 2 when the discharge liquid pressure becomes a certain level or higher.
[0008]
A branch pipe 2b is provided in the middle of the suction pipe 2, and a jet pump 10 is connected to the branch pipe 2b. The drive pipe 11 of the jet pump 10 is connected to the second branch passage 7 of the high-pressure discharge pipe 3, and the injection port 11a of the drive pipe 11 faces the throttle 12a of the low-pressure discharge pipe 12 following the branch pipe 2b. Yes. Reference numeral 11b is provided in the drive tube 11, the first check valve loaded with a spring, 12b and the second check valve provided in the low pressure discharge tube 12, N 2 is a nozzle .
[0009]
Now, when the pump P is driven by the motor M and the nozzle N 1 is opened, the liquid A in the tank 1 is sucked from the suction pipe 2 and discharged through the high-pressure discharge pipe 3 at a high pressure from the nozzle N 1 . However, this discharge liquid is small. On the other hand, the jet pump 10 does not operate due to the action of the first check valve 11b and the second check valve 12b.
[0010]
Closing nozzles N 1 in this state, high-pressure water toward the throttle 12a from the second first injection port 11a pushes open the check valve 11b of the branch passage 7 loaded with spring as the drive tube 11 Erupt. Liquid A is sucked from the suction pipe 2 into the branch pipe 2b that has become negative pressure due to this injection action, and a relatively large amount of liquid A pressurized by the throttle 12a pushes the second check valve 12b open to reduce the pressure. It is discharged from the discharge pipe 12.
[0011]
Incidentally, the branch passage 7 is not always necessary to provide constantly, a conduit such as a hose having a nozzle N 1, by connecting to the drive tube 11 of the jet pump 10 by removing the nozzle N 1, the You may form each time. Further, as shown in the figure, if a high-pressure nozzle N 1 and a low-pressure nozzle N 2 are provided, a part of the object to be cleaned is removed with high-pressure water, and then the nozzle N 1 is closed and the nozzle N 2 is opened. Since low-pressure water is discharged, it can be washed away, and this operation can be repeated sequentially to wash the whole.
[0012]
The discharge device of the present invention can be used for wastewater treatment, liquid transport water spraying and the like in addition to the above-described washing machine.
[0013]
【The invention's effect】
According to the present invention, as described above, a high-pressure discharge pump is used, and a large amount of low-pressure liquid can be discharged using a jet pump. After peeling, it can be washed away with low-pressure water, and there is an effect that it can be washed efficiently in a short time.
[Brief description of the drawings]
FIG. 1 is a diagram showing a liquid ejection apparatus according to the present invention.
1 Tank 2 Suction Pipe 2a Strainer 2b Branch Pipe 3 High Pressure Discharge Pipe 4 Pressure Gauge 5 Pressure Control Valve 6 First Branch 7 Second Branch 10 Jet Pump 11 Drive Pipe 11a Injection Port 11b First Check Valve 12 low-pressure discharge pipe 12a throttle 12b second check valve a liquid M motor N 1, N 2 nozzle P pump

Claims (1)

高圧吐出用ポンプの吸引管を液体タンクに没入し、前記ポンプの高圧吐出管路を高圧用ノズル及びジェットポンプの駆動管に接続し、前記ジェットポンプの低圧吐出管を前記吸引管の途中に接続し、前記駆動管の噴出口を前記低圧吐出管の出口方向に向け、前記出口の先端に低圧用ノズルを設け、前記ジェットポンプの駆動管内にばねで負荷された逆止弁を設けて高圧用ノズルが開いているときにジェットポンプが作動しないようにし、高圧用ノズルを閉じ低圧用ノズルを開くと前記逆止弁が開いてジェットポンプにより低圧水を吐出するようにした液体吐出装置。The suction pipe of the high-pressure discharge pump is immersed in the liquid tank, the high-pressure discharge pipe of the pump is connected to the high-pressure nozzle and the jet pump drive pipe, and the low-pressure discharge pipe of the jet pump is connected to the middle of the suction pipe and, toward the ejection port of the drive tube in the outlet direction of the low pressure discharge tube, a low-pressure nozzle provided at the tip of the outlet, a high pressure by providing a check valve which is loaded by a spring in the drive tube of the jet pump A liquid discharge apparatus that prevents the jet pump from operating when the nozzle for opening is open, and that when the high pressure nozzle is closed and the low pressure nozzle is opened, the check valve is opened and low pressure water is discharged by the jet pump.
JP11202999A 1999-04-20 1999-04-20 Liquid ejection device Expired - Fee Related JP4421695B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11202999A JP4421695B2 (en) 1999-04-20 1999-04-20 Liquid ejection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11202999A JP4421695B2 (en) 1999-04-20 1999-04-20 Liquid ejection device

Publications (2)

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JP2000304000A JP2000304000A (en) 2000-10-31
JP4421695B2 true JP4421695B2 (en) 2010-02-24

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103949426A (en) * 2014-04-28 2014-07-30 太仓远德环保科技有限公司 Machine body washing machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4919861B2 (en) * 2007-03-30 2012-04-18 新明和工業株式会社 High pressure washing car
JP4906936B2 (en) * 2010-02-03 2012-03-28 新泉産業株式会社 Filter medium cleaning system and filter medium cleaning method
CN102392838B (en) * 2010-06-21 2016-04-13 靳北彪 Jet injector with high efficiency
CN102430533B (en) * 2011-09-06 2014-05-28 三一重工股份有限公司 Engineering machinery and water washing system thereof
US8814531B2 (en) * 2012-08-02 2014-08-26 Briggs & Stratton Corporation Pressure washers including jet pumps
WO2016090029A1 (en) 2014-12-05 2016-06-09 Briggs & Stratton Corporation Pressure washers including jet pumps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103949426A (en) * 2014-04-28 2014-07-30 太仓远德环保科技有限公司 Machine body washing machine
CN103949426B (en) * 2014-04-28 2016-07-06 太仓远德环保科技有限公司 A kind of body cleaning machine

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