JP4754734B2 - NOZZLE DEVICE AND SPRAY TYPE CLEANING DEVICE USING THE NOZZLE DEVICE - Google Patents

NOZZLE DEVICE AND SPRAY TYPE CLEANING DEVICE USING THE NOZZLE DEVICE Download PDF

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JP4754734B2
JP4754734B2 JP2001249270A JP2001249270A JP4754734B2 JP 4754734 B2 JP4754734 B2 JP 4754734B2 JP 2001249270 A JP2001249270 A JP 2001249270A JP 2001249270 A JP2001249270 A JP 2001249270A JP 4754734 B2 JP4754734 B2 JP 4754734B2
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Prior art keywords
pressure
nozzle
low
detergent
foaming detergent
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JP2003053216A (en
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浩文 徳竹
直樹 神戸
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MK Seiko Co Ltd
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MK Seiko Co Ltd
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Description

【0001】
【産業上の利用分野】
この発明は、例えば車両洗浄用のスプレー式洗浄ガンの先端部に取り付けられ、適宜洗浄液を噴射し、洗浄を行うノズル装置及び同ノズル装置を使用したスプレー式洗浄装置に関する。
【0002】
【従来の技術】
従来、圧力に応じ、自動的に噴射ノズルを切り替える装置として、実公平3−51029に記載されたノズル装置が知られている。そしてこの装置では、高圧水と、低圧の洗剤水もしくはワックス水が、それぞれに対応する拡散ノズルから噴射できるようになっている。
また、予め発泡させた洗剤を専用ノズルを用いて低圧で噴射できる装置として、特許2937812に記載された洗車機が知られている。
【0003】
【発明が解決しようとする課題】
しかしながら、実公平3−51029に記載されたノズル装置から噴射される洗剤は低圧とはいうものの高圧ポンプ前後循環路を開いて若干圧力を落としたものであり、この圧力と界面活性力の働きにより、車体表面の汚れを落とす装置である。これでも或る程度の汚れは落とすことはできるが、予め発泡させた洗剤を車体を覆うようにして噴射しその上でスポンジやブラシ等の摺擦具で車体表面を擦って汚れを落とす方法に比べればかなり劣る洗浄方法である。かといって前記ノズル装置から噴射される洗剤水は粘度も低くある程度の圧力により噴射されていることもあって、洗剤水は噴射直後から直ちに車体表面から流れ落ちてしまい、擦ることはできない。このように、前記ノズル装置では、予め発泡させた洗剤を低圧で噴射することは考慮されておらず、車両の汚れを落とす装置としては不十分であった。
また、特許2937812の洗車機では、確かに予め発泡させた洗剤を噴射することができる洗車機であるが、発泡洗剤を噴射するための専用の泡用ノズルを設けてあり、洗浄水を高圧で噴射したり、発泡洗剤を低圧で噴射したりするのに一々それぞれのノズルを持ち替えなくてはならず、非常に面倒であった。
【0004】
【課題を解決するための手段】
この発明は、スプレー式洗浄ガンの先端部に取り付けられ、所定圧力以上の洗浄水と所定圧力以下の低圧既発泡洗剤を噴射するノズル装置において、該ノズル装置の先端噴射部には、口径の小さい拡散ノズルと口径の大きい発泡洗剤用ノズルとが並列して設けられ、前記拡散ノズルの上流側には、付勢手段により閉塞側に付勢された弁装置が設けられ、前記発泡洗剤用ノズルの上流側には、発泡洗剤用ノズルへ低圧既発泡洗剤を導通させるための低圧流路が前記弁装置を囲繞するように設けられ、前記弁装置及び低圧流路の上流側には、ノズル装置後端流体流入部から流入する流体を貯留するチャンバー部とチャンバー部内の流体を下流側へ流出させる共通流路からなる受圧体が設けられ、前記受圧体が所定圧力以上の洗浄水を受けると、前記付勢手段に抗して押動し、前記弁装置内の弁を開放させることにより、前記共通流路から前記拡散ノズルへ洗浄水を導通させ、所定圧力以下の低圧既発泡洗剤を受けると、前記付勢手段に付勢されたまま押動せず、前記拡散ノズルへの導通を閉塞させることにより、前記共通流路から前記低圧流路を経て発泡洗剤用ノズルへ低圧既発泡洗剤を導通させるノズル装置を提供することを要旨とするものである。
また、前記弁装置及び拡散ノズルは熱伝導性の良好な材質で形成とするとより好ましい。
また、所定圧力以上の洗浄水又は所定圧力以下の低圧発泡洗剤を選択的に供給するスプレー式洗浄装置であって、前記いずれかに記載のノズル装置を使用し、1つの洗浄ガンで、所定圧力以上の洗浄水を噴射する場合には前記拡散ノズルから拡散噴射し、所定圧力以下の低圧発泡洗剤を噴射する場合には発泡洗剤用ノズルから初期発泡状態を維持したまま噴射するスプレー式洗浄装置を提供することをも要旨とするものである。
【0005】
【作用】
本発明のノズル装置をスプレー式洗浄装置に用いると、洗浄装置側から所定圧力以上の洗浄水、例えば、予備洗浄や仕上げ用の高圧洗浄水、及び中圧ワックス水が供給された場合、受圧体がその圧力を受け、その先の弁装置を付勢手段に抗して押動する。すると供給された洗浄水は、共通流路、弁装置を経て、拡散ノズルから高圧或いは中圧で噴射される。また、予め低圧の圧縮空気で発泡された低圧既発泡洗剤が供給された場合には、受圧体は弁装置に設けられた付勢手段に付勢されたままの状態となり、供給された低圧既発泡洗剤は共通流路、低圧流路を経て、発泡洗剤用ノズルから噴射される。
さらに、凍結防止用に低圧の温水がノズル装置に供給された場合には、その温水は低圧流路を通って発泡洗剤用ノズルより流出され、受圧体、低圧流路、発泡洗剤用ノズルの各低圧部の凍結が防止されると共に、熱伝導性の良い弁装置及び拡散ノズルは低圧流路に囲繞されるように設けられているため、低圧流路及び発泡洗剤用ノズルを流れる温水の熱が伝わり、低圧の温水をノズル装置に供給するだけで高圧側の各部も同時に凍結防止が図られる。
【0006】
【実施例】
以下、実施例について図面を基に説明する。図1、図2は本発明の一実施例であるノズル装置の断面図で、詳細は後述するが、それぞれ所定圧力以上の洗浄水が供給された場合及び所定圧力以下の低圧既発泡洗剤が供給された場合の図である。1は円筒状に形成された本体であり、その内部には、上流側から、洗浄ガンのパイプ先端に螺合できるようになっている流体流入部2、流体流入部2から流入する流体を貯留するチャンバー部4と流体を上流側へ導通するための共通流路5とから形成され、本体1内部を軸方向で摺動する受圧体3、軸方向に摺動する弁7とその弁7を下流側に付勢しているバネ等の付勢手段8とで形成された弁装置6、本体1の下流端中心部に形成され、弁装置6を通過した流体を拡散噴射するための拡散ノズル9、弁装置6を囲繞するように形成された低圧流路10、本体1下流端に2個所穿設され、低圧流路10を通過した流体を噴射するための発泡洗剤用ノズル11、がそれぞれ内蔵されている。
【0007】
ところで、流体流入部2、共通流路5、低圧流路10、発泡洗剤用ノズル11、の各断面積は、ノズル装置流入前に後述するスプレー式洗浄装置にて適宜発泡状態とされた低圧既発泡洗剤が通過後も遜色のない発泡状態を維持できる大きさとなっている。つまり、所定以下の圧力で供給される標準的なムース状発泡洗剤が潰れて水っぽくならない大きさとなっている。また、弁装置6は拡散ノズルに至るまで熱伝導性の良い材質が使用されている。
【0008】
図3は本発明のノズル装置をスプレー式洗浄装置に装備したスプレー式洗浄装置の全体構成図で、ここでは12はスプレー式洗浄装置、13は洗浄ガンである。洗浄装置12内には温水タンク14、高圧ポンプ15にて温水タンク14の温水を逆止弁16を介して洗浄ガン13へ供給する高圧管路17、凍結防止用低圧ポンプ18にて温水タンク14の温水を高圧ポンプ15の上流側の高圧管路17に供給する凍結防止用管路19、リングポンプ20にてワックス原液タンク21のワックス原液を定量高圧管路17に供給するワックス管路22、高圧ポンプ15の前後に接続された減圧路23、低圧洗剤ポンプ24にて温水タンク14の温水及び洗剤原液タンク25の洗剤原液を逆止弁26を介して洗浄ガン13へ供給する洗剤管路27、圧縮空気供給源28から圧縮空気を洗剤管路27へ供給する空気管路29、それぞれの管路の開閉を行う電磁弁30乃至34などが配備されている。また、本スプレー式洗浄装置には、所定の洗車シーケンスが組み込まれており、そのシーケンスに従い順次洗浄水が切り替わり、最適な洗車が行えるようになっているものである。
【0009】
次に図1乃至3に基づき動作の説明をする。本実施例では高圧水での予備洗浄、発泡洗剤での手洗い、汚れと共に洗剤を高圧水で洗い流す濯ぎ、ワックス水の塗布というシーケンスに基づき、車両の洗浄を行う場合について説明する。
【0010】
まず、電磁弁30が開き、高圧ポンプ15が駆動されると、温水タンク14の温水が高圧管路17を通って逆止弁16を開き、洗浄ガン13の先端のノズル装置本体1に供給される。供給された高圧水により、図1に示すように、受圧体3が下流側に移動し、低圧流路10を閉じると共に、受圧体3先端の突起が付勢手段8に抗して弁装置6の弁7を移動開放させる。すると、高圧水は図1の矢印で示したように、共通管路5、弁7を通って、拡散ノズル9から噴射されるので、作業者はこの高圧水により、車体の予備洗浄を行う。
【0011】
次に、電磁弁30が閉じられ、高圧ポンプ15が停止され、代わりに電磁弁32、34が開き、低圧洗剤ポンプ24が駆動されると、温水タンク14の温水及び洗剤原液タンク25の洗剤原液が洗剤管路27に供給される。この時、圧縮空気源28からは比較的低圧の圧縮空気が空気管路29に供給され、洗剤管路27に合流して、洗剤水をムース状に充分発泡させる。このようにして発泡された洗剤が低圧で逆止弁26を開き、洗浄ガン13の先端のノズル装置本体1に供給される。供給された発泡洗剤は低圧であるため、図2に示すように、受圧体3は弁装置6の付勢手段8に付勢されたままである。よって、低圧発泡洗剤は図2の矢印で示したように、また前述したように、発泡状態がノズル装置本体1に供給されるまでの状態と比較して遜色無く、共通管路5、低圧流路10を通って、発泡洗剤用ノズル11から噴射されるので、作業者はこの発泡洗剤を車体に万遍なく噴き付ける。
【0012】
その後、電磁弁32、34が閉じ、低圧洗剤ポンプ24が停止されるので、この間に、洗浄ガン13をスポンジ等に持ち替え、車体を手洗いする。
【0013】
所定時間が経過すると、電磁弁30が開き、高圧ポンプ15が駆動され、温水タンク14の温水が高圧管路17を通って逆止弁16を開き、洗浄ガン13の先端のノズル装置本体1に供給されるので、作業者はその高圧水を車体に噴き付け、車体表面に浮き出た汚れと共に洗剤を高圧水で洗い流す濯ぎ作業を行う。
【0014】
さらに、濯ぎ工程終了後、電磁弁33が開き、リングポンプ20が回転を開始し、ワックス原液タンク21のワックス原液がワックス管路22から定量ずつ高圧管路17に供給される。よって、高圧ポンプ15から吐出される高圧水の一部は減圧路23を通って高圧ポンプ15の上流側に還流されるので、洗浄ガン13に供給されるワックス水は所定圧力減圧された中圧のワックス水となっている。しかしながら、ワックス水が供給された受圧体3はこの圧力でも付勢手段8に抗して移動する設定としてあるので、高圧水が流入した場合と同様に、低圧流路10を閉じると共に、受圧体3先端の突起が付勢手段8に抗して弁装置6の弁7を移動開放させる。すると、中圧ワックス水は図1の矢印で示したように、共通管路5、弁7を通って、拡散ノズル9から噴射されるので、作業者はワックス水を車体に塗布する。この時、ワックス水は中圧となっているため、高圧水を噴射した時のように車体表面から弾き飛ぶことがないので、また、拡散ノズルから拡散噴射されるので、ワックス水を車体表面に効率良く、万遍なく塗布することが可能となっている。
【0015】
次に、各管路の凍結防止を行う場合について説明する。洗車機に設けられた温度センサー等の温度検出手段(図示しない)が、所定以下の温度を検出すると、電磁弁31が開き、凍結防止用低圧ポンプ18が駆動する。すると、温水タンク14の温水が低圧で凍結防止用管路19から高圧管路17に供給され、洗浄ガン13先端のノズル装置本体1に供給される。ここで、供給される温水は所定圧力以下としてあるので、受圧体3は弁装置6の付勢手段8に付勢されまま移動しない。よって、低圧のこの温水は、図2に示すように、共通流路5、低圧流路10を通って発泡洗剤用ノズル11より流出され、受圧体3、低圧流路10、発泡洗剤用ノズル11の各低圧部の凍結が防止される。また、熱伝導性の良い弁装置6及び拡散ノズル9は低圧流路10に囲繞されるように設けられているため、低圧流路10及び発泡洗剤用ノズル11を流れる温水の熱が伝わり、弁装置6及び拡散ノズル9も同時に凍結防止が図られる。
【0016】
【発明の効果】
以上説明したとおり、本発明によると、高圧の洗浄水、中圧のワックス水、低圧の既発泡洗剤をそれぞれ1つのノズル装置から噴射することができ、これらの洗浄水の違いにより自動的に最適なノズルに切り替えられる。
また、ノズル装置は洗浄ガンのパイプ先端に着脱自在に取付可能となっているため、既存の洗車機に装備された洗浄ガンにも簡単に取付できる。
また、洗浄ガンに供給される前に、予め発泡された発泡洗剤の発泡状態を損なうことがないので、発泡洗剤の能力を充分に発揮できる。
また、凍結防止用の温水を低圧で流すだけで、ノズル装置全体の凍結防止を図ることができる。
また、本ノズル装置は高圧洗浄水/低圧発泡洗剤兼用であるにもかかわらず、ムース状の細かくて均一な発泡洗剤の噴射が可能である。
【図面の簡単な説明】
【図1】ノズル装置の断面図である。
【図2】ノズル装置の断面図である。
【図3】スプレー式洗浄装置の全体構成図である。
【符号の説明】
1 ノズル装置本体
2 流体流入部
3 受圧体
4 チャンバー部
5 共通流路
6 弁装置
7 弁
8 付勢手段
9 拡散ノズル
10 低圧流路
11 発泡洗剤用ノズル
12 スプレー式洗浄装置
1 洗浄ガン
[0001]
[Industrial application fields]
The present invention relates to, for example, a nozzle device that is attached to the tip of a spray-type cleaning gun for vehicle cleaning, injects a cleaning liquid as appropriate, and performs cleaning, and a spray-type cleaning device that uses the nozzle device.
[0002]
[Prior art]
Conventionally, a nozzle device described in Japanese Utility Model Publication No. 3-51029 is known as a device for automatically switching an injection nozzle in accordance with pressure. In this apparatus, high-pressure water and low-pressure detergent water or wax water can be jetted from the corresponding diffusion nozzles.
Further, a car wash machine described in Japanese Patent No. 2937812 is known as an apparatus capable of injecting a pre-foamed detergent at a low pressure using a dedicated nozzle.
[0003]
[Problems to be solved by the invention]
However, although the detergent sprayed from the nozzle device described in Japanese Utility Model Publication No. 3-51029 is a low pressure, the pressure is slightly reduced by opening the circulation path before and after the high-pressure pump. It is a device that removes dirt on the surface of the vehicle body. Even with this, it is possible to remove a certain amount of dirt, but it is possible to remove the dirt by spraying a pre-foamed detergent over the car body and then rubbing the car body surface with a rubbing tool such as a sponge or brush. The cleaning method is considerably inferior. However, since the detergent water sprayed from the nozzle device has a low viscosity and is sprayed by a certain pressure, the detergent water immediately flows down from the surface of the vehicle body immediately after spraying and cannot be rubbed. As described above, the nozzle device does not consider spraying a pre-foamed detergent at a low pressure, and is insufficient as a device for removing dirt from a vehicle.
In addition, the car wash machine of Japanese Patent No. 2937812 is certainly a car wash machine capable of injecting a pre-foamed detergent. However, a dedicated foam nozzle for injecting the foam detergent is provided, and the washing water is supplied at a high pressure. Each of the nozzles had to be changed one by one for spraying or spraying foaming detergent at a low pressure, which was very troublesome.
[0004]
[Means for Solving the Problems]
The present invention relates to a nozzle device that is attached to the tip of a spray-type cleaning gun and injects cleaning water of a predetermined pressure or higher and low-pressure foamed detergent of a predetermined pressure or lower. The tip of the nozzle device has a small diameter. A diffusion nozzle and a foam detergent nozzle having a large diameter are provided in parallel, and on the upstream side of the diffusion nozzle, a valve device urged to the closing side by an urging means is provided, and the foam detergent nozzle On the upstream side, a low-pressure channel for conducting low-pressure foaming detergent to the foaming detergent nozzle is provided so as to surround the valve device, and on the upstream side of the valve device and the low-pressure channel, A pressure receiving body comprising a chamber for storing the fluid flowing in from the end fluid inflow portion and a common flow path for allowing the fluid in the chamber to flow downstream; and when the pressure receiving body receives cleaning water at a predetermined pressure or higher, Pushing against the urging means and opening the valve in the valve device, the wash water is conducted from the common flow path to the diffusion nozzle, and when a low-pressure foaming detergent of a predetermined pressure or less is received, By closing the conduction to the diffusion nozzle without being pushed while being urged by the urging means, the low-pressure foaming detergent is conducted from the common channel to the foaming detergent nozzle through the low-pressure channel. The gist is to provide a nozzle device.
The valve device and the diffusion nozzle are more preferably made of a material having good thermal conductivity.
A spray-type cleaning device that selectively supplies cleaning water of a predetermined pressure or higher or a low-pressure foaming detergent of a predetermined pressure or lower, using any one of the nozzle devices described above, with a single cleaning gun, A spray-type cleaning device that sprays from the diffusion nozzle when spraying the above washing water, and sprays while maintaining the initial foaming state from the foam detergent nozzle when spraying low-pressure foaming detergent below a predetermined pressure. The gist is to provide.
[0005]
[Action]
When the nozzle device of the present invention is used in a spray-type cleaning device, when cleaning water of a predetermined pressure or higher, for example, high-pressure cleaning water for preliminary cleaning or finishing, and medium-pressure wax water is supplied from the cleaning device side, the pressure receiver Receives the pressure and pushes the valve device ahead against the biasing means. Then, the supplied wash water is jetted from the diffusion nozzle at high pressure or medium pressure through the common flow path and the valve device. In addition, when a low-pressure foaming detergent previously foamed with low-pressure compressed air is supplied, the pressure receiving body remains biased by the biasing means provided in the valve device, and the supplied low-pressure foamed detergent is supplied. The foaming detergent is sprayed from the foaming detergent nozzle through the common flow path and the low pressure flow path.
Further, when low-pressure hot water is supplied to the nozzle device to prevent freezing, the hot water flows out from the foaming detergent nozzle through the low-pressure channel, and each of the pressure receiving body, the low-pressure channel, and the foaming detergent nozzle The freezing of the low pressure part is prevented, and the valve device and the diffusion nozzle having good thermal conductivity are provided so as to be surrounded by the low pressure flow path. By simply supplying low-pressure hot water to the nozzle device, each part on the high-pressure side can be prevented from freezing simultaneously.
[0006]
【Example】
Hereinafter, examples will be described with reference to the drawings. 1 and 2 are cross-sectional views of a nozzle device according to an embodiment of the present invention. As will be described in detail later, when cleaning water of a predetermined pressure or higher is supplied and low-pressure foaming detergent of a predetermined pressure or lower is supplied. FIG. Reference numeral 1 denotes a main body formed in a cylindrical shape, in which a fluid inflow portion 2 that can be screwed into the pipe tip of the cleaning gun from the upstream side, and a fluid that flows in from the fluid inflow portion 2 are stored. A pressure receiving body 3 that slides in the main body 1 in the axial direction, a valve 7 that slides in the axial direction, and the valve 7. A valve device 6 formed by a biasing means 8 such as a spring biased downstream, and a diffusion nozzle formed at the center of the downstream end of the main body 1 for diffusing and jetting the fluid that has passed through the valve device 6 9. A low-pressure channel 10 formed so as to surround the valve device 6, and a foaming detergent nozzle 11 which is drilled at two locations at the downstream end of the main body 1 and jets the fluid that has passed through the low-pressure channel 10. Built in.
[0007]
By the way, the cross-sectional areas of the fluid inflow portion 2, the common flow path 5, the low pressure flow path 10, and the foaming detergent nozzle 11 are the low pressure already in a foamed state in a spray type cleaning device described later before the nozzle device inflow. The foaming detergent has a size that can maintain a foaming state that is inferior after passing through. In other words, the standard mousse foaming detergent supplied at a predetermined pressure or less is not crushed and becomes watery. The valve device 6 is made of a material having good thermal conductivity up to the diffusion nozzle.
[0008]
FIG. 3 is an overall configuration diagram of a spray-type cleaning apparatus equipped with the nozzle device of the present invention in a spray-type cleaning apparatus. Here, 12 is a spray-type cleaning apparatus, and 13 is a cleaning gun. In the cleaning device 12, a hot water tank 14 and a high pressure pump 15 supply hot water from the hot water tank 14 to the cleaning gun 13 through a check valve 16, and a freezing prevention low pressure pump 18 supplies the hot water tank 14. A freezing prevention pipe 19 for supplying the hot water to the high-pressure pipe 17 upstream of the high-pressure pump 15, a wax pipe 22 for supplying the wax stock solution in the wax stock solution tank 21 to the quantitative high-pressure pipe 17 by the ring pump 20, A decompression path 23 connected before and after the high-pressure pump 15 and a detergent line 27 for supplying the hot water in the hot water tank 14 and the detergent stock solution in the detergent stock solution tank 25 to the cleaning gun 13 via the check valve 26 by the low-pressure detergent pump 24. An air pipe 29 for supplying compressed air from the compressed air supply source 28 to the detergent pipe 27, and electromagnetic valves 30 to 34 for opening and closing each pipe are provided. In addition, a predetermined car wash sequence is incorporated in the spray type washing apparatus, and the washing water is sequentially switched in accordance with the sequence so that optimum car washing can be performed.
[0009]
Next, the operation will be described with reference to FIGS. In this embodiment, a case will be described in which the vehicle is washed based on a sequence of preliminary washing with high-pressure water, hand washing with foaming detergent, rinsing the detergent with high-pressure water together with dirt, and application of wax water.
[0010]
First, when the solenoid valve 30 is opened and the high-pressure pump 15 is driven, the hot water in the hot water tank 14 opens the check valve 16 through the high-pressure line 17 and is supplied to the nozzle device body 1 at the tip of the cleaning gun 13. The As shown in FIG. 1, the high pressure water supplied moves the pressure receiving body 3 to the downstream side, closes the low pressure flow path 10, and the protrusion at the tip of the pressure receiving body 3 resists the urging means 8 to the valve device 6. The valve 7 is moved open. Then, the high-pressure water is injected from the diffusion nozzle 9 through the common pipe 5 and the valve 7 as shown by the arrow in FIG. 1, so that the operator performs preliminary washing of the vehicle body with this high-pressure water.
[0011]
Next, when the solenoid valve 30 is closed, the high-pressure pump 15 is stopped, the solenoid valves 32 and 34 are opened instead, and the low-pressure detergent pump 24 is driven, the hot water in the hot water tank 14 and the detergent stock solution in the detergent stock solution tank 25 are driven. Is supplied to the detergent line 27. At this time, compressed air of a relatively low pressure is supplied from the compressed air source 28 to the air pipe 29 and merges with the detergent pipe 27 to sufficiently foam the detergent water in a mousse shape. The detergent thus foamed opens the check valve 26 at a low pressure and is supplied to the nozzle device body 1 at the tip of the cleaning gun 13. Since the supplied foaming detergent has a low pressure, the pressure receiving body 3 remains urged by the urging means 8 of the valve device 6 as shown in FIG. Therefore, the low-pressure foaming detergent is inferior to the state in which the foamed state is supplied to the nozzle device body 1 as indicated by the arrow in FIG. Since it is sprayed from the foaming detergent nozzle 11 through the path 10, the operator sprays the foaming detergent uniformly on the vehicle body.
[0012]
Thereafter, the solenoid valves 32 and 34 are closed and the low-pressure detergent pump 24 is stopped. During this time, the washing gun 13 is changed to a sponge or the like, and the vehicle body is washed by hand.
[0013]
When a predetermined time elapses, the electromagnetic valve 30 is opened, the high pressure pump 15 is driven, the hot water in the hot water tank 14 opens the check valve 16 through the high pressure pipe 17, and the nozzle device body 1 at the tip of the cleaning gun 13 is opened. Since the water is supplied, the operator sprays the high-pressure water on the vehicle body, and performs a rinsing operation in which the detergent is washed away with the high-pressure water along with the dirt that has floated on the surface of the vehicle body.
[0014]
Further, after completion of the rinsing process, the electromagnetic valve 33 is opened, the ring pump 20 starts to rotate, and the wax stock solution in the wax stock solution tank 21 is supplied from the wax conduit 22 to the high-pressure conduit 17 in a fixed amount. Therefore, a part of the high-pressure water discharged from the high-pressure pump 15 is returned to the upstream side of the high-pressure pump 15 through the pressure reducing passage 23, so that the wax water supplied to the cleaning gun 13 is a medium pressure that has been depressurized by a predetermined pressure. It becomes wax water. However, since the pressure receiving body 3 supplied with the wax water is set to move against the biasing means 8 even at this pressure, the low pressure flow path 10 is closed and the pressure receiving body as in the case where the high pressure water flows in. 3 The projection at the tip of the valve 7 moves and opens the valve 7 of the valve device 6 against the biasing means 8. Then, as shown by the arrow in FIG. 1, the medium-pressure wax water is jetted from the diffusion nozzle 9 through the common pipe 5 and the valve 7, so the worker applies wax water to the vehicle body. At this time, since the wax water has an intermediate pressure, it does not fly off from the surface of the vehicle body like when high-pressure water is injected, and is also diffused and injected from the diffusion nozzle. It can be applied efficiently and uniformly.
[0015]
Next, the case where the freezing prevention of each pipeline is performed will be described. When a temperature detection means (not shown) such as a temperature sensor provided in the car wash machine detects a temperature below a predetermined value, the electromagnetic valve 31 is opened and the anti-freezing low-pressure pump 18 is driven. Then, the hot water in the hot water tank 14 is supplied from the freezing prevention pipe line 19 to the high pressure pipe line 17 at a low pressure, and is supplied to the nozzle device body 1 at the tip of the cleaning gun 13. Here, since the supplied hot water is not more than a predetermined pressure, the pressure receiving body 3 does not move while being urged by the urging means 8 of the valve device 6. Therefore, as shown in FIG. 2, this low-pressure warm water flows out from the foaming detergent nozzle 11 through the common flow path 5 and the low-pressure flow path 10, and receives the pressure receiving body 3, the low-pressure flow path 10, and the foaming detergent nozzle 11. Freezing of each low-pressure part is prevented. Further, since the valve device 6 and the diffusion nozzle 9 having good thermal conductivity are provided so as to be surrounded by the low pressure flow path 10, the heat of the hot water flowing through the low pressure flow path 10 and the foaming detergent nozzle 11 is transmitted, and the valve The apparatus 6 and the diffusion nozzle 9 are also prevented from freezing at the same time.
[0016]
【The invention's effect】
As described above, according to the present invention, high-pressure washing water, medium-pressure wax water, and low-pressure foaming detergent can be sprayed from one nozzle device, respectively. Can be switched to the correct nozzle.
Further, since the nozzle device can be detachably attached to the pipe tip of the cleaning gun, it can be easily attached to a cleaning gun equipped in an existing car wash machine.
Moreover, since the foaming state of the foaming detergent previously foamed before being supplied to the cleaning gun is not impaired, the ability of the foaming detergent can be sufficiently exhibited.
In addition, the entire nozzle device can be prevented from freezing only by flowing hot water for preventing freezing at a low pressure.
In addition, although this nozzle device is used for both high-pressure washing water and low-pressure foaming detergent, it can spray a mousse-like fine and uniform foaming detergent.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a nozzle device.
FIG. 2 is a cross-sectional view of a nozzle device.
FIG. 3 is an overall configuration diagram of a spray cleaning apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Nozzle apparatus main body 2 Fluid inflow part 3 Pressure receiving body 4 Chamber part 5 Common flow path 6 Valve apparatus 7 Valve 8 Energizing means 9 Diffusion nozzle 10 Low pressure flow path 11 Foam detergent nozzle 12 Spray type cleaning apparatus 1 Cleaning gun

Claims (3)

スプレー式洗浄ガンの先端部に取り付けられ、所定圧力以上の洗浄水又は所定圧力以下の低圧既発泡洗剤を噴射するノズル装置において、
該ノズル装置の先端噴射部には、口径の小さい拡散ノズルと口径の大きい発泡洗剤用ノズルとが並列して設けられ、
前記拡散ノズルの上流側には、付勢手段により閉塞側に付勢された弁装置が設けられ、
前記発泡洗剤用ノズルの上流側には、発泡洗剤用ノズルへ低圧既発泡洗剤を導通させるための低圧流路が前記弁装置を囲繞するように設けられ、
前記弁装置及び低圧流路の上流側には、ノズル装置後端流体流入部から流入する流体を貯留するチャンバー部とチャンバー部内の流体を下流側へ流出させる共通流路からなる受圧体が設けられ、
前記受圧体が所定圧力以上の洗浄水を受けると、前記付勢手段に抗して押動し、前記弁装置内の弁を開放させることにより、前記共通流路から前記拡散ノズルへ洗浄水を導通させ、所定圧力以下の低圧既発泡洗剤を受けると、前記付勢手段に付勢されたまま押動せず、前記拡散ノズルへの導通を閉塞させることにより、前記共通流路から前記低圧流路を経て発泡洗剤用ノズルへ低圧既発泡洗剤を導通させることを特徴とするノズル装置。
In the nozzle device attached to the tip of the spray type cleaning gun and spraying cleaning water of a predetermined pressure or higher or low-pressure foaming detergent of a predetermined pressure or lower,
In the tip spray portion of the nozzle device, a diffusion nozzle having a small diameter and a nozzle for foaming detergent having a large diameter are provided in parallel,
On the upstream side of the diffusion nozzle, a valve device biased to the closing side by a biasing means is provided,
On the upstream side of the foam detergent nozzle, a low pressure flow path for conducting the low pressure foaming detergent to the foam detergent nozzle is provided so as to surround the valve device,
On the upstream side of the valve device and the low pressure flow path, a pressure receiving body comprising a chamber part for storing fluid flowing in from the fluid inflow part at the rear end of the nozzle device and a common flow path for flowing out the fluid in the chamber part to the downstream side is provided. ,
When the pressure receiving body receives cleaning water of a predetermined pressure or higher, the pressure receiving body is pushed against the biasing means, and the valve in the valve device is opened, so that the cleaning water is supplied from the common flow path to the diffusion nozzle. When the low-pressure foaming detergent having a predetermined pressure or less is received, the low-pressure flow from the common flow path is closed by blocking the conduction to the diffusion nozzle without being pushed by the biasing means. A nozzle device characterized in that a low-pressure foaming detergent is conducted to a foaming detergent nozzle through a path.
前記弁装置及び拡散ノズルは熱伝導性の良好な材質で形成されていることを特徴とする請求項1記載のノズル装置。The nozzle device according to claim 1, wherein the valve device and the diffusion nozzle are made of a material having good thermal conductivity . 所定圧力以上の洗浄水又は所定圧力以下の低圧発泡洗剤を選択的に供給するスプレー式洗浄装置であって、請求項1又は2のいずれかに記載のノズル装置を使用し、1つの洗浄ガンで、所定圧力以上の洗浄水を噴射する場合には前記拡散ノズルから拡散噴射し、所定圧力以下の低圧発泡洗剤を噴射する場合には発泡洗剤用ノズルから初期発泡状態を維持したまま噴射することを特徴とするスプレー式洗浄装置。A spray-type cleaning device that selectively supplies cleaning water of a predetermined pressure or higher or low-pressure foaming detergent of a predetermined pressure or lower, using the nozzle device according to claim 1 or 2 with a single cleaning gun. When spraying cleaning water at a predetermined pressure or higher, the spray is diffused from the diffusion nozzle, and when spraying low-pressure foaming detergent at a pressure lower than the predetermined pressure, the foaming detergent nozzle is sprayed while maintaining the initial foaming state. A spray-type cleaning device.
JP2001249270A 2001-08-20 2001-08-20 NOZZLE DEVICE AND SPRAY TYPE CLEANING DEVICE USING THE NOZZLE DEVICE Expired - Fee Related JP4754734B2 (en)

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CN110252535B (en) * 2019-07-19 2024-05-10 河南西格玛电子科技有限公司 Foam, water spray switching device and foam and water spray dual-purpose integrated spray head
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Publication number Priority date Publication date Assignee Title
WO2016011830A1 (en) * 2014-07-24 2016-01-28 喻小秋 Switchable dual-passage quick cleaning nozzle

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