JP6384917B2 - Fire extinguishing nozzle - Google Patents

Fire extinguishing nozzle Download PDF

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JP6384917B2
JP6384917B2 JP2014206815A JP2014206815A JP6384917B2 JP 6384917 B2 JP6384917 B2 JP 6384917B2 JP 2014206815 A JP2014206815 A JP 2014206815A JP 2014206815 A JP2014206815 A JP 2014206815A JP 6384917 B2 JP6384917 B2 JP 6384917B2
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flow rate
inner cylinder
fire
metal fitting
water discharge
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JP2016073515A (en
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健之 大窪
健之 大窪
亮 横井
亮 横井
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Ritsumeikan Trust
Yokoi Manufacturing Co Ltd
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Yokoi Manufacturing Co Ltd
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Description

本発明は、主に多くの木造住宅が密集する町並みや、地域の防災用として設置される消火設備に用いる消火用ノズルに係り、特に、消火用ホースの先端部に接続されて消火設備として必要な水圧、水量を確保しつつ、操作の習熟を目的とした日常の散水用として低水圧、低水量に切り替えて使用することができると共に、消火活動時に消火用ホースの長さが不足する場合に、消火用ホースの先端部に接続した消火用ノズルを外すことなく、消火用ノズル自体に他の消火用ホースを簡単且つ容易に接続できるようにした消火用ノズルに関するものである。   The present invention relates to a fire extinguishing nozzle mainly used in a street where many wooden houses are concentrated and a fire extinguishing equipment installed for disaster prevention in a region, and is particularly necessary as a fire extinguishing equipment connected to the tip of a fire hose. When the water hose for fire extinguishing is not long enough, it can be switched to low water pressure and low water volume for daily sprinkling with the aim of learning the operation while ensuring a sufficient water pressure and water volume. The present invention relates to a fire-extinguishing nozzle in which another fire-extinguishing hose can be easily and easily connected to the fire-extinguishing nozzle itself without removing the fire-extinguishing nozzle connected to the tip of the fire-extinguishing hose.

一般に、消防法においては、木造製の小規模建築物は、敷地の所有権が違えば、１棟ごとに消防設備の要否を判断するため、住居として使用している場合には、消火設備の設置の対象になっていない。   Generally, according to the Fire Service Law, small buildings made of wood, if the ownership of the site is different, determine the necessity of fire-fighting facilities for each building. Is not eligible for installation.

そのため、木造製の小規模建築物が密集している地域では、ひとたび火災が発生すると、非常に大規模な火災になる可能性がある。
また、多くの木造住宅が密集する歴史的景観のある町並みや、文化財が多く存在する地域においては、古い木造建築物を残すために、区画整理がされていないことから、道路幅員が狭い場所があり、消防署が近くにあっても、消防車が通行できないため、消防隊の到着までに時間がかかって被害が拡がることがある。 Therefore, in areas where wooden small-scale buildings are dense, once a fire breaks out, it can be a very large-scale fire.
Also, in streets with historical landscapes where many wooden houses are densely populated and in areas where there are many cultural assets, the area is narrow due to the lack of land readjustment in order to leave old wooden buildings. Even if there is a fire station nearby, fire trucks cannot pass, so it may take time before the fire brigade arrives, and the damage may spread.

そこで、木造製の建築物が密集している地域においては、公設の水道本管に設置されている屋外消火栓設備を使用して防災力を高めるようにしている。   Therefore, in areas where wooden buildings are densely packed, disaster prevention capabilities are enhanced by using outdoor fire hydrant equipment installed in public water mains.

しかし、前記屋外消火栓設備は、消火栓に接続する消火用ホースの口径が６５ｍｍと大きいため、水圧や水量が非常に大きくなり、これを使用して有効な消火活動や消火訓練、散水を行うのは、操作方法を習得している消防職員や消防団員に限られ、訓練を受けていない一般の市民が使用するには、極めて危険が伴うと云う問題があった。   However, in the outdoor fire hydrant equipment, the diameter of the fire hose connected to the fire hydrant is as large as 65 mm, so the water pressure and the water volume become very large. Use this to perform effective fire fighting activities, fire drills and watering. There is a problem that it is extremely dangerous to use by ordinary citizens who are not trained, limited to fire fighters and fire brigade members who have learned how to operate.

そのため、ビルなどでは、消火用ホースの口径を４０ｍｍ、３０ｍｍ、２５ｍｍと屋外消火設備の消火用ホースに比べて細くし、水圧や水量も小さくして、一般市民が初期消火活動を行えるものとして、屋内消火栓設備を設置している。
また、歴史的景観のある町並みや、文化財が多く存在する地域においては、地域の消火活動に使用する目的として、道路や地域の共有地に屋内消火栓を設置し、初期消火活動を地域住民が担う体制を整備している地域が数多くある。 Therefore, in buildings, etc., the diameter of the fire hose is 40 mm, 30 mm, 25 mm, which is thinner than the fire extinguishing hose of the outdoor fire extinguishing equipment, and the water pressure and water volume are reduced so that the general public can perform initial fire fighting activities. There is an indoor fire hydrant.
Also, in townscapes with historical landscapes and areas with many cultural assets, indoor fire hydrants are installed on roads and common areas for the purpose of use in local firefighting activities, and the local residents conduct initial firefighting activities. There are many areas that have established systems to take charge of.

しかし、屋内消火栓も水道と比べると水圧、水量が大きいことと、ホースの引き出しやノズルの操作などを円滑に行うには、訓練が必要とされていることから、定期的に消火訓練を行っているが、時間的な制約などによって地域住民全員が参加できない場合もあり、操作の習熟度に個人差が出ることになる。   However, indoor fire hydrants also have higher water pressure and water volume than water supply, and training is necessary to smoothly operate the hose drawer and nozzle operation. However, there are cases where not all local residents can participate due to time constraints, etc., and there will be individual differences in the proficiency level of operation.

そこで、消火訓練の延長として、個人が日常的に道路への散水や植栽への灌水に使用することを奨励している地域もあるが、水道に比べて水圧や水量が大きいことから、使用に不安感を持ってしまい、日常の使用を敬遠するために、十分に行われていないのが現状である。   Therefore, as an extension of fire drills, there are some areas where individuals are encouraged to use them regularly for watering roads or irrigating plants, but they are used because water pressure and water volume are larger than water supply. The current situation is that it has not been fully implemented in order to feel uneasy and to avoid daily use.

一方、消火設備に用いる消火用ノズルには、様々な種類があり、大きく分けると、棒状放水式と、噴霧放水式と、両者を組み合わせたものがある（例えば、特許文献１、特許文献２、特許文献３、特許文献４及び特許文献５参照）。   On the other hand, there are various types of fire-extinguishing nozzles used in fire-extinguishing equipment. Roughly speaking, there are rod-like water discharge types, spray water discharge types, and combinations of both (for example, Patent Document 1, Patent Document 2, (See Patent Document 3, Patent Document 4 and Patent Document 5).

棒状放水式は、ノズル先端から放射される水流が連続した棒状になっており、放水圧力の強弱により距離が進むにつれて水滴状の飛沫になり、消火が必要な地点に着水させる。   In the rod-like water discharge type, the water flow radiated from the tip of the nozzle is a continuous rod shape. As the distance increases due to the strength of the water discharge pressure, the water droplets form droplets and land at a point where fire extinguishing is necessary.

また、噴霧放水式は、ノズル先端に水流方向を変化させる開口又は段差を設け、水流をノズル内部でいろいろな方向に変化させることで、あらかじめ小さな粒状にして先端より放射するもので、水粒は先端の構造により様々な大きさに変化させることができる。   In addition, the spray water discharge type is provided with an opening or step for changing the water flow direction at the nozzle tip, and the water flow is changed in various directions inside the nozzle to radiate from the tip in a small granular shape in advance. It can be changed to various sizes depending on the structure of the tip.

前記棒状放水式と噴霧放水式の違いは、放水時における放水方向と、逆方向に作用する反力の大きさと、放水する水の角度調整の機能の有無である。   The difference between the rod-like water discharge type and the spray water discharge type is the water discharge direction during the water discharge, the magnitude of the reaction force acting in the opposite direction, and the presence / absence of the function of adjusting the angle of the water discharged.

ノズル先端における放水圧力が同じ場合、放水時における反力の違いは、ノズル先端部で粒状になって放水されることによりエネルギーが分散される噴霧放水式に比べると、ノズルの先端から放射される水流が連続してつながっている棒状放水式の方が大きくなる。   When the water discharge pressure at the nozzle tip is the same, the difference in reaction force at the time of water discharge is radiated from the nozzle tip compared to the spray water discharge type in which energy is dispersed by being discharged in the form of particles at the nozzle tip. The rod-type water discharge type with continuous water flow is larger.

現在、初期消火用として位置づけされている屋内消火栓設備に使用されている消火用ノズルには、放水作業を容易にすることを目的として噴霧放水式を採用しているものがある。   Currently, some fire extinguishing nozzles used in indoor fire hydrant equipment that are positioned for initial fire extinguishing use a spray water discharge type for the purpose of facilitating water discharge work.

しかし、噴霧放水式の消火用ノズルであっても、消火活動に使用するためには、水道の蛇口からでる水量及び水圧に比べると大きくなっており、地域住民が使用し難いと云う問題がある。   However, even if it is a spray water discharge type fire extinguishing nozzle, there is a problem that it is difficult for local residents to use it for fire extinguishing activities because it is larger than the amount of water and water pressure coming out from a tap. .

更に、実際の消火活動時における問題として、消火設備の設置位置によっては、入り組んだ路地や建物の奥まで消火用ホースが届かない場所もあり、初期火災の段階で鎮火させることができないことが想定される。   Furthermore, as a problem during actual fire fighting activities, depending on the location of the fire extinguishing equipment, there are places where the fire hose does not reach the complicated alleys or the back of the building, and it is assumed that it cannot be extinguished at the initial fire stage. Is done.

この問題を解決するには、消火用ホースに長いものを使用すれば良いが、消火用ホースの引き出しや取り扱いに大きな負担がかかることになり、むやみに長い消火用ホースを使用すれば、実際の消火活動が行えないこともある。また、消火設備の設置場所を増やせば、景観を損なうと共に、工事費や機器購入費が高騰してしまうと云う問題があった。   To solve this problem, it is sufficient to use a long fire hose. However, it will be a heavy burden to pull out and handle the fire hose. Fire fighting may not be possible. In addition, if the number of installation locations of fire extinguishing equipment is increased, the landscape is damaged, and construction costs and equipment purchase costs are increased.

別の対処方法としては、近接する消火設備の消火用ホースのみを取り出し、消火活動を行っている消火栓の延長用ホースとして接続することで出火地点に到達することは可能であるが、その操作は消火設備の消火栓格納箱に設置されている開閉弁を閉止したことを確認した後、消火活動を行っているホース先端のノズルを外し、延長するホースを消火活動に使用しているホースに接続して延長用ホースの先端に先ほど外した消火用ノズルを装着してから、再び開閉弁を開くという手順になる。   As another countermeasure, it is possible to reach the fire point by taking out only the fire hose of the adjacent fire extinguishing equipment and connecting it as the extension hose of the fire hydrant that is performing fire fighting activities. After confirming that the on-off valve installed in the fire hydrant containment box of the fire extinguishing equipment has been closed, remove the nozzle at the tip of the hose performing the fire extinguishing activity, and connect the hose to be extended to the hose used for the fire extinguishing activity. After installing the fire extinguishing nozzle removed at the tip of the extension hose, open the on-off valve again.

そのため、この操作を迅速に行うには、開閉弁の操作を行う者が必要になる他、入り組んだ路地等では、ノズルを操作する者から消火栓格納箱を見渡すことが困難であることも想定されるため、曲がり角毎に開閉弁の閉止と再度送水するための確認に人員を要することになる。
もし、これらの人員が確保できない場合には、確認作業に時間を要することは勿論だが、誤ったタイミングでの開閉弁の開放により、怪我等の事故が発生することになる。 Therefore, in order to perform this operation quickly, a person who operates the on-off valve is required, and it is also assumed that it is difficult to overlook the fire hydrant storage box from the person who operates the nozzle in an intricate alley. Therefore, personnel are required to confirm the closing of the on-off valve and re-feeding water at every corner.
If these personnel cannot be secured, it will take time for the confirmation work, but an accident such as injury will occur if the on-off valve is opened at an incorrect timing.

尚、特開２０００−８４１０９号公報（特許文献６）には、ホースの先端部に設けたノズルに別のホースを接続できる消火用噴射ノズルが記載されているが、この消火用噴射ノズルは、ノズル先端部に別のホースを接続する際に、ノズル先端部に継手雄部材を新たに接続しなければならず、迅速な所期消火活動を行えないことになる。また、消火用噴射ノズルの先端部には、細径のホースしか接続できないので、水圧、水量が小さくなり、消火に支障を来たすことになる。   JP-A-2000-84109 (Patent Document 6) describes a fire-extinguishing injection nozzle that can connect another hose to a nozzle provided at the tip of the hose. When another hose is connected to the nozzle tip portion, a joint male member must be newly connected to the nozzle tip portion, and a quick and desired fire fighting operation cannot be performed. In addition, since only a small-diameter hose can be connected to the tip of the fire-extinguishing spray nozzle, the water pressure and the amount of water are reduced, which hinders fire-fighting.

実開昭５６−０３４５７３号公報Japanese Utility Model Publication No. 56-034573 実用新案登録第３００６１６１号公報Utility Model Registration No. 3006161 特開平０９−２８５５６１号公報JP 09-285561 A 特開２００６−２８８８７１号公報JP 2006-288871 A 特開２０１０−０３５７５１号公報JP 2010-035751 A 特開２０００−０８４１０９号公報JP 2000-084109 A

本発明は、このような問題点に鑑みて為されたものであり、その目的は、消火設備として必要な水圧、水量を確保しつつ、操作の習熟を目的とした日常の散水用として低水圧、低水量に切り替えて使用することができると共に、消火活動時に消火用ホースの長さが不足する場合に、消火用ホースの先端部に接続した消火用ノズルを外すことなく、消火用ノズル自体に他の消火用ホースを簡単且つ容易に接続できるようにした消火用ノズルを提供することにある。   The present invention has been made in view of such problems, and its purpose is to ensure low water pressure for daily sprinkling for the purpose of learning operation while ensuring the water pressure and water volume necessary for fire extinguishing equipment. If the fire hose is not long enough during fire extinguishing activities, the fire extinguishing nozzle itself can be used without removing the fire extinguishing nozzle connected to the tip of the fire hose. An object of the present invention is to provide a fire-extinguishing nozzle in which other fire-extinguishing hoses can be easily and easily connected.

本発明の請求項１の消火ノズルは、水路を形成する内筒と、内筒の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部を形成した外筒と、内筒の先端部内方に配設され、先端部に外筒の弁座部に当離座し得るデフレクターを設けたスピンドルと、内筒の基端部外周面に相対回転自在に嵌合され、消火用ホースの先端部に接続される筒状の受け金具とを具備し、外筒の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能な消火用ノズルにおいて、前記消火用ノズルは、大流量から小流量まで流量調整を行える流量調整機構と、他の消火用ホースの基端部に設けた雌型金具に着脱自在に接続される雄型金具とを備え、更に、前記受け金具に、内筒の回転を阻止して流量調整機構の流量調整機能をロックするロック機構を設け、当該ロック機構は、受け金具の外周面に前後方向へスライド調整自在に設けられ、前進時にその先端部が内筒に設けた環状の流量調整ハンドル部に形成した係止部に係止されて内筒の回転を阻止するスライドロック板を備えていることに特徴がある。 A fire-extinguishing nozzle according to claim 1 of the present invention is screwed into an inner cylinder forming a water channel and an outer peripheral surface of a distal end portion of the inner cylinder so as to be rotatable and movable back and forth in the front-rear direction. Relative rotation with the outer cylinder formed, the spindle that is arranged inside the tip of the inner cylinder, and a deflector that can be moved away from the valve seat of the outer cylinder, and the outer peripheral surface of the inner cylinder A fire-extinguishing nozzle that can be freely fitted and has a cylindrical receiving bracket connected to the tip of a fire-extinguishing hose, and can switch the water discharge state to water discharge stop, rod-shaped water discharge or spray water discharge by advancing and retreating the outer cylinder The fire-extinguishing nozzle comprises a flow rate adjusting mechanism capable of adjusting a flow rate from a large flow rate to a small flow rate, and a male metal fitting removably connected to a female metal fitting provided at the base end of another fire extinguishing hose. provided, further, the receiving metal, and prevents the rotation of the inner cylinder flow regulator A lock mechanism that locks the flow rate adjustment function is provided, and the lock mechanism is provided on the outer peripheral surface of the receiving metal so as to be slidable in the front-rear direction, and its tip is provided on the inner cylinder during forward movement. It is characterized in that a slide lock plate is provided which is locked by the locking portion formed in the above and prevents the rotation of the inner cylinder .

本発明の請求項２の消火ノズルは、水路を形成する内筒と、内筒の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部を形成した外筒と、内筒の先端部内方に配設され、先端部に外筒の弁座部に当離座し得るデフレクターを設けたスピンドルと、内筒の基端部外周面に相対回転自在に嵌合され、消火用ホースの先端部に接続される筒状の受け金具とを具備し、外筒の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能な消火用ノズルにおいて、前記消火用ノズルは、大流量から小流量まで流量調整を行える流量調整機構と、他の消火用ホースの基端部に設けた雌型金具に着脱自在に接続される雄型金具とを備え、更に、前記受け金具に、内筒の回転を阻止して流量調整機構の流量調整機能をロックするロック機構を設け、当該ロック機構は、受け金具の外周面に回転自在に嵌合した環状の流量調整リングに形成した係止孔と、受け金具に設けられ、前記係止孔の内周面に係止されて流量調整リングの回転を阻止するボールを備えた二つのボールプランジャーと、受け金具に固定された回り止め部材と、回り止め部材に設けられ、係止孔とボールの係止状態を解除するストッパーとを備え、流量調整リングを全開位置と全閉位置とに亘ってロックできる構成としたことことに特徴がある。 The fire-extinguishing nozzle according to claim 2 of the present invention is screwed into the inner cylinder forming the water channel and the outer peripheral surface of the front end portion of the inner cylinder so as to be rotatable and movable back and forth in the front-rear direction, and the valve seat portion is provided on the inner peripheral surface of the front end portion. Relative rotation with the outer cylinder formed, the spindle that is arranged inside the tip of the inner cylinder, and a deflector that can be moved away from the valve seat of the outer cylinder, and the outer peripheral surface of the inner cylinder A fire-extinguishing nozzle that can be freely fitted and has a cylindrical receiving bracket connected to the tip of a fire-extinguishing hose, and can switch the water discharge state to water discharge stop, rod-shaped water discharge or spray water discharge by advancing and retreating the outer cylinder The fire-extinguishing nozzle comprises a flow rate adjusting mechanism capable of adjusting a flow rate from a large flow rate to a small flow rate, and a male metal fitting removably connected to a female metal fitting provided at the base end of another fire extinguishing hose. provided, further, the receiving metal, and prevents the rotation of the inner cylinder flow regulator A lock mechanism that locks the flow rate adjusting function of the ring, and the lock mechanism is provided in an annular flow rate adjusting ring that is rotatably fitted to the outer peripheral surface of the receiving metal fitting, the receiving metal fitting, Two ball plungers equipped with a ball that is locked to the inner peripheral surface of the stop hole to prevent the rotation of the flow rate adjusting ring, a detent member fixed to the bracket, a detent member, and a latch It is characterized in that it has a structure that includes a stopper that releases the locked state of the hole and the ball and that can lock the flow rate adjusting ring between the fully open position and the fully closed position .

本発明の請求項３の消火ノズルは、水路を形成する内筒と、内筒の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部を形成した外筒と、内筒の先端部内方に配設され、先端部に外筒の弁座部に当離座し得るデフレクターを設けたスピンドルと、内筒の基端部外周面に相対回転自在に嵌合され、消火用ホースの先端部に接続される筒状の受け金具とを具備し、外筒の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能な消火用ノズルにおいて、前記消火用ノズルは、大流量から小流量まで流量調整を行える流量調整機構と、他の消火用ホースの基端部に設けた雌型金具に着脱自在に接続される雄型金具とを備え、前記流量調整機構は、内筒に設けられ、外筒と受け金具の間に位置して内筒を回転操作する流量調整ハンドル部と、内筒の基端部内方に設けた下流側隔壁と、下流側隔壁に形成した少なくとも一つの下流側開口と、受け金具の内方に設けられ、下流側隔壁の上流側面に摺動した状態で相対回転する上流側隔壁と、上流側隔壁に形成され、下流側開口に合致すると共に、下流側開口と齟齬状態になる上流側開口とを備え、流量調整ハンドル部により内筒を回転させて下流側開口と上流側開口の開口面積を変化させることより、大流量から小流量まで無段階で流量調整を行える構成としたことに特徴がある。 The fire-extinguishing nozzle according to claim 3 of the present invention is screwed to the inner cylinder forming the water channel and the outer peripheral surface of the front end portion of the inner cylinder so as to be rotatable and movable back and forth in the front-rear direction. Relative rotation with the outer cylinder formed, the spindle that is arranged inside the tip of the inner cylinder, and a deflector that can be moved away from the valve seat of the outer cylinder, and the outer peripheral surface of the inner cylinder A fire-extinguishing nozzle that can be freely fitted and has a cylindrical receiving bracket connected to the tip of a fire-extinguishing hose, and can switch the water discharge state to water discharge stop, rod-shaped water discharge or spray water discharge by advancing and retreating the outer cylinder The fire-extinguishing nozzle comprises a flow rate adjusting mechanism capable of adjusting a flow rate from a large flow rate to a small flow rate, and a male metal fitting removably connected to a female metal fitting provided at the base end of another fire extinguishing hose. wherein the flow rate adjusting mechanism is provided in the inner cylinder, the receiving and the outer sleeve A flow rate adjusting handle portion for rotating the inner cylinder at a position, a downstream partition wall provided inside the proximal end of the inner cylinder, at least one downstream opening formed in the downstream partition wall, and an inner side of the receiving metal fitting And an upstream opening that is formed in the upstream partition and that matches the downstream opening and is in a saddle state with the downstream opening. And by changing the opening area of the downstream side opening and the upstream side opening by rotating the inner cylinder by the flow rate adjusting handle part, the flow rate can be adjusted steplessly from a large flow rate to a small flow rate. There is.

本発明の請求項４の消火ノズルは、水路を形成する内筒と、内筒の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部を形成した外筒と、内筒の先端部内方に配設され、先端部に外筒の弁座部に当離座し得るデフレクターを設けたスピンドルと、内筒の基端部外周面に相対回転自在に嵌合され、消火用ホースの先端部に接続される筒状の受け金具とを具備し、外筒の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能な消火用ノズルにおいて、前記消火用ノズルは、大流量から小流量まで流量調整を行える流量調整機構と、他の消火用ホースの基端部に設けた雌型金具に着脱自在に接続される雄型金具とを備え、前記流量調整機構は、受け金具の外周面に回転自在に設けられ、内筒の基端部に連動連結されて内筒の基端部を回転操作する流量調整リングと、内筒の基端部内方に設けた下流側隔壁と、下流側隔壁に形成した少なくとも一つの下流側開口と、受け金具の内方に設けられ、下流側隔壁の上流側面に摺動した状態で相対回転する上流側隔壁と、上流側隔壁に形成され、下流側開口に合致すると共に、下流側開口と齟齬状態になる上流側開口とを備え、流量調整リングにより内筒の基端部を回転させて下流側開口と上流側開口の開口面積を変化させることより、大流量から小流量まで無段階で流量調整を行える構成としたことに特徴がある。 According to a fourth aspect of the present invention, there is provided a fire-extinguishing nozzle comprising: an inner cylinder that forms a water channel; and a screw seat that is rotatable and forward and backward movable in the front-rear direction on the outer peripheral surface of the inner cylinder; Relative rotation with the outer cylinder formed, the spindle that is arranged inside the tip of the inner cylinder, and a deflector that can be moved away from the valve seat of the outer cylinder, and the outer peripheral surface of the inner cylinder A fire-extinguishing nozzle that can be freely fitted and has a cylindrical receiving bracket connected to the tip of a fire-extinguishing hose, and can switch the water discharge state to water discharge stop, rod-shaped water discharge or spray water discharge by advancing and retreating the outer cylinder The fire-extinguishing nozzle comprises a flow rate adjusting mechanism capable of adjusting a flow rate from a large flow rate to a small flow rate, and a male metal fitting removably connected to a female metal fitting provided at the base end of another fire extinguishing hose. wherein the flow rate adjusting mechanism is rotatably mounted on the outer peripheral surface of the receiving metal fitting A flow rate adjusting ring that is interlocked and connected to the base end of the inner cylinder to rotate the base end of the inner cylinder, a downstream partition provided inside the base end of the inner cylinder, and at least formed in the downstream partition One downstream opening and an upstream partition that is provided on the inner side of the receiving metal fitting and that rotates relative to the upstream side of the downstream partition, and an upstream partition that matches the downstream opening , With a downstream opening and an upstream opening that is in a saddle state, and by rotating the base end of the inner cylinder with a flow rate adjusting ring to change the opening area of the downstream opening and the upstream opening, A feature is that the flow rate can be adjusted steplessly up to the flow rate .

本発明の請求項５の消火ノズルは、請求項１に記載の消火ノズルにおいて、スライドロック板が、外筒の後退時及びスライドロック板の前進時にスライドロック板の先端部が外筒の基端部外周面に設けた流量固定リングに係止され、外筒の回転を阻止して放水状態を保持できる構成としたことに特徴がある。 The fire-extinguishing nozzle according to claim 5 of the present invention is the fire-extinguishing nozzle according to claim 1, wherein the slide lock plate is configured such that the distal end portion of the slide lock plate is the base end of the outer cylinder when the outer cylinder is retracted and when the slide lock plate is advanced. The structure is characterized in that it is latched by a flow rate fixing ring provided on the outer peripheral surface of the portion, and the water discharge state can be maintained by preventing the rotation of the outer cylinder .

本発明の請求項６の消火ノズルは、請求項５に記載の消火ノズルにおいて、スライドロック板と受け金具との間にスライドロック板を位置決めする位置決め機構を設け、当該位置決め機構は、スライドロック板に設けたボールプランジャーと、受け金具の外周面に前後方向に一定の間隔で形成され、ボールプランジャーのボールが係止される複数の係止溝とを備え、スライドロック板が流量調整ハンドル部及び流量固定リングにそれぞれ非係止状態と成る非係止位置と、スライドロック板が流量調整ハンドル部に係止される第１係止位置と、スライドロック板が流量調整ハンドル部及び流量固定リングの両方に係止される第２係止位置とを取り得るように構成されていることに特徴がある。 A fire extinguishing nozzle according to a sixth aspect of the present invention is the fire extinguishing nozzle according to the fifth aspect, wherein a positioning mechanism for positioning the slide lock plate is provided between the slide lock plate and the receiving metal fitting, and the positioning mechanism includes a slide lock plate. And a plurality of locking grooves that are formed at regular intervals in the front-rear direction on the outer peripheral surface of the receiving metal fitting, and the slide lock plate has a flow rate adjusting handle. And a flow lock ring, a first locking position where the slide lock plate is locked to the flow rate adjustment handle portion, and a slide lock plate that fixes the flow rate adjustment handle portion and the flow rate fixed. It is characterized by being configured to be able to take a second locking position locked to both of the rings .

本発明の請求項７の消火ノズルは、請求項２に記載の消火ノズルにおいて、受け金具に、外筒の前進を阻止して放水状態を保持できるフック機構を設け、当該フック機構は、外筒の基端部外周面に形成した環状の段部に係脱可能に係止されるフック板を備えており、フック板を外筒の段部に係止することにより外筒の前進を阻止して放水状態を保持できる構成としたことに特徴がある。 The fire-extinguishing nozzle according to claim 7 of the present invention is the fire-extinguishing nozzle according to claim 2, wherein a hook mechanism capable of preventing the forward movement of the outer cylinder and maintaining a water discharge state is provided on the metal fitting. A hook plate that is detachably locked to an annular step formed on the outer peripheral surface of the base end of the outer cylinder is provided, and the forward movement of the outer cylinder is prevented by locking the hook plate to the step of the outer cylinder. It is characterized by having a configuration that can maintain the water discharge state .

本発明の消火用ノズルは、次のような優れた作用効果を奏することができる。
（１）即ち、本発明の消火用ノズルは、大流量から小流量まで流量調整を行える流量調整 機構を備えているため、流量調整機構を操作することによって、消火活動時には、消 火設備として必要な水圧、水量を確保でき、また、操作の習熟を目的とした日常の散 水時には、低水圧、低水量に切り替えて使用することができ、地域住民が安全且つ良 好に散水作業を行える。
（２）本発明の消火用ノズルは、流量調整機構が、内筒を回転操作する流量調整ハンドル 部又は流量調整リングと、内筒の基端部内方に設けた下流側隔壁と、下流側隔壁に形 成した下流側開口と、受け金具の内方に設けられ、下流側隔壁の上流側面に摺動した 状態で相対回転する上流側隔壁と、上流側隔壁に形成され、下流側開口に合致すると 共に、下流側開口と齟齬状態になる上流側開口とから成り、流量調整ハンドル部又は 流量調整リングにより内筒を回転させて下流側開口と上流側開口の開口面積を変化さ せる構成としているため、大流量から小流量まで無段階で流量調整を行える。しか も、棒状放水時及び噴霧放水時においても、流量調整機構を操作することによって、 無段階で流量を調整することができる。
（３）本発明の消火用ノズルは、その先端部側に他の消火用ホースの基端部に設けた雌型 金具に着脱自在に接続される雄型金具を設けているため、消火活動時に消火用ホース の長さが不足する場合には、近くの別の消火設備から消火用ホースとノズルを借用 し、取り出した消火用ホースの基端部を消火用ノズルの雄型金具に接続することに よって、消火用ホースを延長することができる。
（４）本発明の消火用ノズルは、その先端部側に雄型金具を設けているため、他の消火用 ホースを接続する際に消火用ノズルを取り外すことなく、他の消火用ホースを接続す ることができ、また、消火栓格納箱内の消火栓弁を閉止することなく、消火用ノズル で水流を止めることができるため、誤ったタイミングでの消火栓弁の開放による事故 を防止することができ、迅速で有効な消火活動を行える。
（５）本発明の消火用ノズルは、受け金具に流量調整機構の流量調整機能をロックする ロック機構を設けているため、ロック機構を操作して流量調整機構のロック状態を解 除することによって、大流量から小流量まで無段階で流量調整を行え、また、消火活 動時にロック機構を操作して流量調整機構をロック状態とすることによって、水量が 誤って減少するのを防止することができ、消火活動を確実且つ良好に行える。また、 他の消火用ホースの接続後においても、ロック機構を操作して流量調整機構をロック 状態にすることによって、消火用ノズルを放水状態に保持することができる。 The fire-extinguishing nozzle of the present invention can exhibit the following excellent effects.
(1) That is, the fire-extinguishing nozzle of the present invention is equipped with a flow rate adjustment mechanism that can adjust the flow rate from a large flow rate to a small flow rate, so it is necessary as a fire extinguishing equipment during a fire fighting operation by operating the flow rate adjustment mechanism. It is possible to secure a sufficient water pressure and water volume, and to switch to a low water pressure and low water volume during daily watering for the purpose of learning operation, so that local residents can perform water spraying work safely and well.
(2) In the fire-extinguishing nozzle of the present invention, the flow rate adjustment mechanism has a flow rate adjustment handle portion or flow rate adjustment ring for rotating the inner cylinder, a downstream partition wall provided in the base end portion of the inner cylinder, and a downstream partition wall Formed on the inner side of the metal fitting, the upstream bulkhead that rotates relative to the upstream side of the downstream bulkhead, and the upstream bulkhead, and matches the downstream opening. At the same time, it is composed of a downstream opening and an upstream opening that is in a saddle state, and the inner cylinder is rotated by the flow rate adjusting handle portion or the flow rate adjusting ring to change the opening area of the downstream side opening and the upstream side opening. Therefore, the flow rate can be adjusted steplessly from a large flow rate to a small flow rate. However, the flow rate can be adjusted steplessly by operating the flow rate adjustment mechanism even during rod-like water discharge and spray water discharge.
(3) The fire extinguishing nozzle of the present invention is provided with a male fitting that is detachably connected to a female fitting provided at the base end of another fire hose on the tip side thereof, so that during fire fighting activities If the fire hose is not long enough, borrow a fire hose and nozzle from another nearby fire extinguisher, and connect the base end of the fire extinguishing hose to the male fitting of the fire extinguishing nozzle. Thus, the fire hose can be extended.
(4) The fire-extinguishing nozzle of the present invention is provided with a male fitting on the tip side thereof, so when connecting another fire-extinguishing hose, other fire-extinguishing hoses can be connected without removing the fire-extinguishing nozzle. In addition, the water flow can be stopped with the fire-extinguishing nozzle without closing the fire-hydrant valve in the fire hydrant containment box, so accidents due to the opening of the fire hydrant valve at the wrong timing can be prevented. Can perform quick and effective fire fighting activities.
(5) Since the fire-extinguishing nozzle of the present invention is provided with a lock mechanism for locking the flow rate adjustment function of the flow rate adjustment mechanism on the metal fitting, the lock mechanism is operated to release the lock state of the flow rate adjustment mechanism. The flow rate can be adjusted steplessly from a large flow rate to a small flow rate, and the water flow rate can be prevented from being accidentally reduced by operating the lock mechanism during the fire extinguishing operation to lock the flow rate adjustment mechanism. Yes, fire fighting activities can be performed reliably and well. In addition, even after other fire hoses are connected, the fire-extinguishing nozzle can be kept in the water discharge state by operating the lock mechanism to lock the flow rate adjusting mechanism.

本発明の第１の実施形態に係る消火用ノズルの平面図である。It is a top view of the nozzle for fire extinguishing which concerns on the 1st Embodiment of this invention. 消火用ノズルの拡大縦断面図である。It is an enlarged vertical sectional view of a fire extinguishing nozzle. 消火用ノズルの一部分を破断した状態の分解斜視図である。It is a disassembled perspective view of the state which fractured a part of nozzle for fire extinguishing. 消火用ノズルの側面図である。It is a side view of the nozzle for fire extinguishing. 消火用ノズルの放水状態を示し、（イ）は噴霧放水の状態を示す縦断面図、（ロ）は棒状放水の状態を示す縦断面図、（ハ）は放水停止状態を示す縦断面図ある。The water discharge state of the fire-extinguishing nozzle is shown, (A) is a vertical cross-sectional view showing the state of spray water discharge, (B) is a vertical cross-sectional view showing the state of rod-like water discharge, and (C) is a vertical cross-sectional view showing the state of water discharge stop. . 消火用ノズルを示し、（イ）は散水時の状態を示す消火用ノズルの一部分を破断した状態の分解斜視図、（ロ）は消火放水時の状態を示す消火用ノズルの一部分を破断した状態の分解斜視図、（ハ）は他の消火用ホースを接続した状態を示す消火用ノズルの一部分を破断した状態の分解斜視図である。The fire extinguishing nozzle is shown, (A) is an exploded perspective view of a part of the fire extinguishing nozzle showing a state of watering, and (B) is a part of the fire extinguishing nozzle showing a state of fire extinguishing and watering. (C) is an exploded perspective view of a state in which a part of a fire-extinguishing nozzle is broken, showing a state where another fire-extinguishing hose is connected. 消火用ノズルと他の消火用ホースの基端部に設けた雌型金具を示し、消火用ノズルの雄型金具と他の消火用ホースの雌型金具を分離した状態の縦断面図である。It is the longitudinal cross-sectional view of the state which showed the female metal fitting provided in the base end part of the fire-extinguishing nozzle and other fire-extinguishing hoses, and isolate | separated the male metal fitting of the fire-extinguishing nozzle and the female metal fitting of another fire-extinguishing hose. 消火用ノズルの雄型金具と他の消火用ホースの雌型金具を連結した状態の縦断面図である。It is a longitudinal cross-sectional view of the state which connected the male metal fitting of the fire extinguishing nozzle, and the female metal fitting of another fire extinguishing hose. 本発明の第２の実施形態に係る消火用ノズルの平面図である。It is a top view of the nozzle for fire extinguishing which concerns on the 2nd Embodiment of this invention. 図９に示す消火用ノズルの一部破断拡大側面図である。It is a partially broken enlarged side view of the fire extinguishing nozzle shown in FIG. 図９に示す消火用ノズルの流量調整機構部分の分解斜視図である。FIG. 10 is an exploded perspective view of a flow rate adjusting mechanism portion of the fire-extinguishing nozzle shown in FIG. 9. 図９に示す消火用ノズルと他の消火用ホースの基端部に設けた雌型金具を示し、消火用ノズルの雄型金具と他の消火用ホースの雌型金具を分離した状態の縦断面図である。FIG. 9 shows a female fitting provided at the base end of the fire extinguishing nozzle and other fire extinguishing hose shown in FIG. FIG. 図９に示す消火用ノズルの雄型金具と他の消火用ホースの雌型金具を連結した状態の縦断面図である。It is a longitudinal cross-sectional view of the state which connected the male metal fitting of the nozzle for fire extinguishing shown in FIG. 9, and the female metal fitting of the other fire extinguishing hose.

以下、本発明の実施形態を図面に基づいて詳細に説明する。
図１〜図８は本発明の第１の実施形態に係る消火用ノズルを示し、当該消火用ノズルは、多くの木造住宅が密集する町並みや、地域の防災用として設置される消火設備に用いられるものであり、消火用ホースＡの先端部に接続されて消火設備として必要な水圧、水量を確保しつつ、操作の習熟を目的とした日常の散水用として低水圧、低水量に切り替えて使用することができ、また、消火活動時に消火用ホースＡの長さが不足する場合に、消火用ホースＡの先端部に接続した消火用ノズルを外すことなく、消火用ノズル自体に他の消火用ホースＡを簡単且つ容易に接続できるようにしたものである。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIGS. 1-8 shows the fire-extinguishing nozzle according to the first embodiment of the present invention, and the fire-extinguishing nozzle is used for streets where many wooden houses are concentrated, and fire extinguishing equipment installed for disaster prevention in the area. It is connected to the tip of the fire hose A, and it is used by switching to low water pressure and low water volume for daily sprinkling for the purpose of learning operation while securing the water pressure and water volume necessary for fire extinguishing equipment. If the length of the fire hose A is insufficient during fire fighting, the fire extinguishing nozzle itself can be used for other fire fighting without removing the fire extinguishing nozzle connected to the tip of the fire hose A. The hose A can be easily and easily connected.

尚、消火設備は、道路脇や道路に面している建物の軒先、地域の共有地等に設置されており、開閉可能な消火栓格納箱（図示省略）内に消火栓弁（図示省略）や消火用ホースＡ、消火用ノズル等を収納して成る。   Fire extinguishing equipment is installed on the side of the road, on the eaves of buildings facing the road, in common areas, etc., and there is a fire hydrant valve (not shown) and a fire extinguisher in an openable fire hydrant storage box (not shown). It contains a hose A for fire, a fire extinguishing nozzle and the like.

前記消火用ノズルは、図１及び図２に示す如く、通水路を形成する内筒１と、内筒１の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部２ａを形成した外筒２と、内筒１の先端部内方に配設され、先端部に外筒２の弁座部２ａに当離座し得るデフレクター３を設けたスピンドル４と、内筒１の基端部外周面に相対回転自在に嵌合され、消火用ホースＡの先端部に接続される筒状の受け金具５と、消火用ノズルの基端部内方に設けられ、大流量から小流量まで流量調整を行える流量調整機構６と、消火用ノズルの先端部に設けられ、他の消火用ホースＡの基端部に設けた雌型金具７に着脱自在に接続される雄型金具８と、内筒１及び外筒２の回転を阻止するロック機構９とを備えており、外筒２の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能となっている。
ここで前後方向とは、消火用ノズルの軸心方向を言い、消火用ノズルの先端部側（図１及び図２の左側）を前方、消火用ノズルの基端部側（図１及び図２の右側）を後方と言う。 As shown in FIGS. 1 and 2, the fire-extinguishing nozzle is screwed to an inner cylinder 1 forming a water passage, and to the outer peripheral surface of the distal end portion of the inner cylinder 1 so as to be rotatable and movable forward and backward. A spindle provided with an outer cylinder 2 having a valve seat portion 2a formed on the peripheral surface thereof, and a deflector 3 disposed on the inner end of the inner cylinder 1 and capable of coming into contact with the valve seat portion 2a of the outer cylinder 2 at the front end portion. 4 and a cylindrical receiving metal fitting 5 that is fitted to the outer peripheral surface of the base end portion of the inner cylinder 1 so as to be relatively rotatable and connected to the distal end portion of the fire extinguishing hose A, and provided inside the base end portion of the fire extinguishing nozzle. The flow rate adjusting mechanism 6 capable of adjusting the flow rate from a large flow rate to a small flow rate, and a female fitting 7 provided at the distal end portion of the fire extinguishing nozzle A and provided at the base end portion of another fire extinguishing hose A are detachably connected. Provided with a male metal fitting 8 and a lock mechanism 9 for preventing the inner cylinder 1 and the outer cylinder 2 from rotating. It has become switchable to the water discharge stop or bar water discharge or spraying water discharge water discharge state by.
Here, the front-rear direction refers to the axial direction of the fire-extinguishing nozzle, the front end side (left side of FIGS. 1 and 2) of the fire-extinguishing nozzle is the front side, and the base end side of the fire-extinguishing nozzle (FIGS. 1 and 2). The right side) is called the rear.

前記内筒１は、金属材により筒状に形成されており、内方にデフレクター３を設けたスピンドル４が配設される筒状の下流側内筒１Ａと、下流側内筒１Ａの基端部に螺着された筒状の上流側内筒１Ｂとから成る。   The inner cylinder 1 is formed of a metal material into a cylindrical shape, and has a cylindrical downstream inner cylinder 1A in which a spindle 4 having a deflector 3 provided therein is disposed, and a proximal end of the downstream inner cylinder 1A. And a cylindrical upstream inner cylinder 1B screwed to the portion.

下流側内筒１Ａの基端部外周面には、外筒２と受け金具５との間に位置して外方から内筒１を回転操作する環状の流量調整ハンドル部１ａが設けられている。この流量調整ハンドル部１ａは、下流側内筒１Ａと一体的に形成されている。 On the outer peripheral surface of the base end portion of the downstream inner cylinder 1A, an annular flow rate adjusting handle portion 1a that is positioned between the outer cylinder 2 and the receiving metal fitting 5 and that rotates the inner cylinder 1 from the outside is provided. . The flow rate adjusting handle portion 1a is formed integrally with the downstream inner cylinder 1A.

また、下流側内筒１Ａの中間部外周面には、外筒２が回転自在且つ前後方向へ進退移動自在に螺着される雄ネジ１ｂが形成されていると共に、下流側内筒１Ａの基端部内周面には、上流側内筒１Ｂが螺着される雌ネジ１ｃが形成されている。   Further, on the outer peripheral surface of the intermediate portion of the downstream inner cylinder 1A, a male screw 1b is formed on which the outer cylinder 2 is screwed so as to be rotatable and movable back and forth in the front-rear direction. A female screw 1c to which the upstream inner cylinder 1B is screwed is formed on the inner peripheral surface of the end.

更に、上流側内筒１Ｂの先端部外周面には、下流側内筒１Ａの雌ネジ１ｃに螺着される雄ネジ１ｄが形成されていると共に、上流側内筒１Ｂの基端部外周面には、環状の突起部１ｅが形成されている。   Furthermore, a male screw 1d is formed on the outer peripheral surface of the distal end portion of the upstream inner cylinder 1B, and the outer peripheral surface of the proximal end portion of the upstream inner cylinder 1B is formed on the female screw 1c of the downstream inner cylinder 1A. Is formed with an annular protrusion 1e.

そして、内筒１は、その上流側内筒１Ｂの基端部が筒状の受け金具５内に相対回転自在に挿入され、受け金具５の先端部内周面に螺着した接続用リング１０により抜け止めされており、上流側内筒１Ｂの突起部１ｅと受け金具５と接続用リング１０との間に形成した環状の空間に収容された複数のベアリングボール１１により受け金具５に対して円滑且つスムースに相対回転するようになっている。   The inner cylinder 1 is connected by a connecting ring 10 in which the base end portion of the upstream inner cylinder 1B is relatively rotatably inserted into the cylindrical receiving metal fitting 5 and screwed to the inner peripheral surface of the distal end portion of the receiving metal fitting 5. It is prevented from coming off and is smooth with respect to the metal fitting 5 by a plurality of bearing balls 11 housed in an annular space formed between the protrusion 1e of the upstream inner cylinder 1B, the metal fitting 5 and the connection ring 10. And it is designed to rotate relatively smoothly.

尚、上記の実施形態においては、内筒１を下流側内筒１Ａと上流側内筒１Ｂとから形成したが、他の実施形態においては、下流側内筒１Ａと上流側内筒１Ｂとを一体的に形成しても良い。
また、上記の実施形態においては、流量調整ハンドル部１ａを下流側内筒１Ａに一体的に形成したが、他の実施形態においては、流量調整ハンドル部１ａを下流側内筒１Ａと別体に形成しても良く、或いは、流量調整ハンドル部１ａを上流側内筒１Ｂに設けるようにしても良い。 In the above embodiment, the inner cylinder 1 is formed of the downstream inner cylinder 1A and the upstream inner cylinder 1B, but in other embodiments, the downstream inner cylinder 1A and the upstream inner cylinder 1B You may form integrally.
In the above embodiment, the flow rate adjusting handle portion 1a is formed integrally with the downstream inner cylinder 1A. However, in other embodiments, the flow rate adjusting handle portion 1a is separated from the downstream inner cylinder 1A. Alternatively, the flow rate adjusting handle portion 1a may be provided on the upstream inner cylinder 1B.

前記外筒２は、金属材により筒状に形成されており、外筒２の先端部内周面には、環状の弁座部２ａが形成されていると共に、外筒２の中間部内周面には、下流側内筒１Ａの雄ネジ１ｂに回転自在且つ前後方向へ進退移動自在に螺着される雌ネジ２ｂが形成されている。   The outer cylinder 2 is formed in a cylindrical shape from a metal material, and an annular valve seat 2 a is formed on the inner peripheral surface of the tip of the outer cylinder 2, and on the inner peripheral surface of the intermediate part of the outer cylinder 2. Is formed with a female screw 2b that is screwed onto the male screw 1b of the downstream inner cylinder 1A so as to be rotatable and movable forward and backward.

また、外筒２の基端部外周面には、ロック機構９のスライドロック板２３に係止されて外筒２の回転を阻止し、放水状態を保持する流量固定リング１２が止めネジ１３により固定されている。この流量固定リング１２には、スライドロック板２３の先端部が係止される凹状の係止部１２ａが形成されている。尚、流量固定リング１２は、外筒２に一体的に形成しても良い。   Further, on the outer peripheral surface of the base end portion of the outer cylinder 2, a flow rate fixing ring 12 that is locked to the slide lock plate 23 of the lock mechanism 9 to prevent the rotation of the outer cylinder 2 and maintains a water discharge state is provided by a set screw 13. It is fixed. The flow rate fixing ring 12 is formed with a concave locking portion 12a to which the tip of the slide lock plate 23 is locked. The flow rate fixing ring 12 may be formed integrally with the outer cylinder 2.

前記スピンドル４は、内筒１の下流側内筒１Ａ内に前後方向へ移動自在に配設されており、スピンドル４の先端部には、外筒２の弁座部２ａに当離座し得る環状のデフレクター３がビス１４により固定されている。   The spindle 4 is disposed in the inner cylinder 1 </ b> A on the downstream side of the inner cylinder 1 so as to be movable in the front-rear direction, and can be seated on and away from the valve seat 2 a of the outer cylinder 2 at the tip of the spindle 4. An annular deflector 3 is fixed by screws 14.

また、スピンドル４の基端部には、スピンドル４を下流側内筒１Ａ内に保持して下流側内筒１Ａとスピンドル４との間に環状の通路を形成すると共に、下流側内筒１Ａの内周面に形成した段部に係止される放射状の羽根部４ａが形成されている。   At the base end of the spindle 4, the spindle 4 is held in the downstream inner cylinder 1A to form an annular passage between the downstream inner cylinder 1A and the spindle 4, and the downstream inner cylinder 1A Radial blades 4a that are locked to the stepped portions formed on the inner peripheral surface are formed.

前記受け金具５は、金属材により筒状に形成されており、受け金具５の基端部内周面には、消火用ホースＡの先端部に設けた接続金具Ｂに螺着される雌ネジ５ａが形成されていると共に、受け金具５の先端部内周面には、接続用リング１０の雄ネジ１０ａに螺着される雌ネジ５ｂが形成されている。   The receiving metal fitting 5 is formed in a cylindrical shape from a metal material, and a female screw 5a is screwed onto a connecting metal fitting B provided at the distal end portion of the fire hose A on the inner peripheral surface of the base end portion of the receiving metal fitting 5. And a female screw 5 b that is screwed to the male screw 10 a of the connection ring 10 is formed on the inner peripheral surface of the tip end portion of the receiving metal fitting 5.

前記流量調整機構６は、内筒１に設けられ、内筒１を回転操作する流量調整ハンドル部１ａと、内筒１の下流側内筒１Ａの基端部内方に設けた下流側隔壁１ｆと、下流側隔壁１ｆに形成した扇状の下流側開口１ｇと、受け金具５の内方に設けられ、下流側隔壁１ｆの上流側面に摺動した状態で相対回転する上流側隔壁５ｃと、上流側隔壁５ｃに形成され、下流側開口１ｇに合致すると共に、下流側開口１ｇと齟齬状態になる扇状の上流側開口５ｄとから成り、流量調整ハンドル部１ａを回転操作して内筒１を回転させ、下流側開口１ｇと上流側開口５ｄの開口面積を変化させることより、大流量から小流量まで無段階で流量調整を行える構成となっている。
例えば、図４に示す如く、下流側開口１ｇと上流側開口５ｄとが実線で示す上流側開口５ｄの位置で合致すると、流量調整機構６が全開状態となって大流量の水を流すことができ、また、下流側開口１ｇが一点鎖線で示す位置に来ると、下流側開口１ｇと上流側開口５ｄの開口面積が全開時のほぼ半分位になって中流量の水を流すことができ、更に、下流側開口１ｇが破線で示す位置に来ると、下流側開口１ｇと上流側開口５ｄの開口面積がゼロととなり、流量調整機構６が全閉状態となる。 The flow rate adjusting mechanism 6 is provided in the inner cylinder 1, a flow rate adjusting handle portion 1 a for rotating the inner cylinder 1, and a downstream partition wall 1 f provided inside the proximal end portion of the downstream inner cylinder 1 </ b> A of the inner cylinder 1. A fan-shaped downstream opening 1g formed in the downstream partition 1f, an upstream partition 5c provided inward of the receiving metal fitting 5 and relatively rotating while sliding on the upstream side of the downstream partition 1f, and upstream The partition 5c is formed of a fan-shaped upstream opening 5d that matches the downstream opening 1g and is in a saddle state, and rotates the flow control handle 1a to rotate the inner cylinder 1. By changing the opening areas of the downstream opening 1g and the upstream opening 5d, the flow rate can be adjusted steplessly from a large flow rate to a small flow rate.
For example, as shown in FIG. 4, when the downstream opening 1g and the upstream opening 5d match at the position of the upstream opening 5d indicated by the solid line, the flow rate adjusting mechanism 6 is fully opened and a large flow rate of water can flow. In addition, when the downstream side opening 1g comes to the position indicated by the alternate long and short dash line, the opening area of the downstream side opening 1g and the upstream side opening 5d is approximately half that of the fully opened state, allowing a medium flow rate of water to flow. Further, when the downstream opening 1g comes to a position indicated by a broken line, the opening areas of the downstream opening 1g and the upstream opening 5d become zero, and the flow rate adjusting mechanism 6 is fully closed.

また、下流側隔壁１ｆは、内筒１と一体的に形成されていると共に、上流側隔壁５ｃは、受け金具５の内周面に形成した環状の突部５ｃ′と、突部５ｃ′の内周面に嵌合され、上流側開口５ｄを有する円板状の流量調節板５ｃ″とから成る。   The downstream partition 1 f is formed integrally with the inner cylinder 1, and the upstream partition 5 c is formed with an annular protrusion 5 c ′ formed on the inner peripheral surface of the bracket 5, and the protrusion 5 c ′. It comprises a disc-shaped flow rate adjusting plate 5c ″ fitted to the inner peripheral surface and having an upstream opening 5d.

更に、下流側開口１ｇ及び上流側開口５ｄは、下流側隔壁１ｆ及び上流側隔壁５ｃに内筒１及び受け金具５の軸心を中心にしてそれぞれ対称状に二つずつ配置されている。   Furthermore, the downstream opening 1g and the upstream opening 5d are arranged two symmetrically around the axial center of the inner cylinder 1 and the receiving metal fitting 5 in the downstream partition 1f and the upstream partition 5c, respectively.

尚、上記の実施形態においては、下流側隔壁１ｆ及び上流側隔壁５ｃにそれぞれ下流側開口１ｇ及び上流側開口５ｄを二つずつ形成したが、他の実施形態においては、下流側隔壁１ｆ及び上流側隔壁５ｃに半円状の下流側開口１ｇ及び上流側開口５ｄを一つずつ形成しても良い。   In the above embodiment, two downstream openings 1g and two upstream openings 5d are formed in the downstream partition 1f and the upstream partition 5c, respectively. However, in other embodiments, the downstream partition 1f and the upstream partition You may form the semicircular downstream opening 1g and the upstream opening 5d one by one in the side partition 5c.

また、上記の実施形態においては、上流側隔壁５ｃを環状の突部５ｃ′と円盤状の流量調節板５ｃ″とから形成したが、他の実施形態においては、上流側隔壁５ｃを受け金具５と一体的に形成しても良い。   In the above embodiment, the upstream partition wall 5c is formed by the annular protrusion 5c 'and the disc-shaped flow rate adjusting plate 5c ". However, in other embodiments, the upstream partition wall 5c is received by the metal fitting 5 And may be formed integrally.

前記雄型金具８は、他の消火用ホースＡの基端部に設けた差込み式の雌型金具７に着脱自在に接続される差込み式の雄型金具８から成り、この差込み式の雄型金具８には、例えば、消火用ホースＡと消火栓弁等の連結及び分離をワンタッチで行える従来公知の町野式（登録商標）結合金具の雄型金具８が使用されている。   The male metal fitting 8 is composed of a plug-in male metal fitting 8 which is detachably connected to a plug-in female metal fitting 7 provided at the base end of another fire extinguishing hose A. As the metal fitting 8, for example, a conventionally known Machino type (registered trademark) male metal fitting 8 capable of connecting and separating the fire hose A and the fire hydrant valve and the like with one touch is used.

雌型金具７は、図７及び図８に示す如く、一端部に消火用ホースＡに連結される筒状の連結部１５ａを有すると共に、他端部に連結部１５ａよりも大径で且つ連結部１５ａに連なる筒状の受け口部１５ｂを備えた雌型本体１５と、雌型本体１５の受け口部１５ｂの外周面に着脱自在に螺着された筒状の締め輪１６と、締め輪１６内に嵌合された環状の爪座１７と、爪座１７に等角度毎に配設されて爪座１７の内方へ突出可能な円弧状の複数の爪１８と、締め輪１６と爪１８との間に介設されて各爪１９を爪座１７の内方へ附勢する複数枚の板バネ１９と、受け口部１５ｂの内周面に嵌め込まれたＵ型パッキン２０とから成る。   As shown in FIGS. 7 and 8, the female metal fitting 7 has a cylindrical connecting portion 15a connected to the fire hose A at one end, and has a diameter larger than that of the connecting portion 15a and connected to the other end. A female main body 15 having a cylindrical receiving portion 15b continuous with the portion 15a, a cylindrical fastening ring 16 removably screwed to the outer peripheral surface of the receiving portion 15b of the female main body 15, and an inside of the fastening ring 16 An annular claw seat 17 fitted to the claw seat 17, a plurality of arcuate claws 18 that are disposed at equal angles on the claw seat 17 and can protrude inwardly of the claw seat 17, a fastening ring 16, and a claw 18 And a plurality of leaf springs 19 for urging each claw 19 inward of the claw seat 17 and a U-shaped packing 20 fitted on the inner peripheral surface of the receiving port 15b.

一方、雄型金具８は、雌型金具７に挿入される外筒２と、外筒２の先端部外周面に一体的に設けられ、雌型金具７に設けた複数の爪１８に着脱自在に係止される環状突部２ｃと、外筒２に前後方向へスライド自在に外嵌され、雌型金具７の各爪１８と外筒２の環状突部２ｃとの係止を外す筒状の押し輪２１とから成る。尚、環状突部２ｃは、外筒２と別体に形成しても良い。   On the other hand, the male metal fitting 8 is provided integrally with the outer cylinder 2 inserted into the female metal fitting 7 and the outer peripheral surface of the distal end portion of the outer cylinder 2, and is detachable from a plurality of claws 18 provided on the female metal fitting 7. An annular protrusion 2c that is locked to the outer cylinder 2 and a cylindrical shape that is slidably fitted to the outer cylinder 2 so as to be slidable in the front-rear direction, and that unlocks the claws 18 of the female metal fitting 7 and the annular protrusion 2c of the outer cylinder 2. And a push ring 21. The annular protrusion 2c may be formed separately from the outer cylinder 2.

また、押し輪２１は、外筒２に前後方向へスライド自在で且つ外筒２に対して回転不能に外嵌されており、外筒２を回転操作して進退移動させ、噴霧角度を調整する環状の噴霧角度調整ハンドル部２１ａを備えている。この押し輪２１は、雌型金具７と雄型金具８の連結を解除する機能と、外筒２を回転操作する機能とを有している。   The push ring 21 is fitted to the outer cylinder 2 so as to be slidable in the front-rear direction and to be non-rotatable with respect to the outer cylinder 2. The outer cylinder 2 is rotated and moved forward and backward to adjust the spray angle. An annular spray angle adjusting handle portion 21a is provided. The push ring 21 has a function of releasing the connection between the female metal fitting 7 and the male metal fitting 8 and a function of rotating the outer cylinder 2.

更に、押し輪２１の噴霧角度調整ハンドル部２１ａには、ハウジング２２ａ、ボール２２ｂ及びスプリング２２ｃから成るネジ式のボールプランジャー２２が挿着されており、ボールプランジャー２２のボール２２ｂが外筒２の外周面に前後方向に沿って形成したガイド溝２ｄに入り込んでいる。その結果、外筒２に外嵌された押し輪２１は、外筒２に対して前後方向へスライド自在で且つ回転不能になっている。   Further, a screw type ball plunger 22 comprising a housing 22a, a ball 22b and a spring 22c is inserted into the spray angle adjusting handle portion 21a of the push wheel 21, and the ball 22b of the ball plunger 22 is attached to the outer cylinder 2. The guide groove 2d formed along the front-rear direction on the outer peripheral surface of the guide. As a result, the push ring 21 fitted on the outer cylinder 2 is slidable in the front-rear direction with respect to the outer cylinder 2 and cannot rotate.

更に、押し輪２１は、ガイド溝２ｄの一端部底面に形成した位置決め用の係止溝２ｅにボールプランジャー２２のボール２２ｂが係止されることによって、外筒２の環状突部２ｃから離間した位置に保持され、不必要に外筒２に対して前後方向へスライドしないようになっている。   Further, the push ring 21 is separated from the annular protrusion 2c of the outer cylinder 2 by the ball 22b of the ball plunger 22 being locked to the positioning locking groove 2e formed on the bottom surface of one end of the guide groove 2d. It is held in this position, and is not unnecessarily slid in the front-rear direction with respect to the outer cylinder 2.

前記ロック機構９は、受け金具５の外周面に前後方向へスライド調整自在に設けられ、前進時にその先端部が内筒１に設けた環状の流量調整ハンドル部１ａに形成した凹状の係止部１ｈに係止されて内筒１の回転を阻止するスライドロック板２３を備えている。
このスライドロック板２３は、スライドロック板２３に形成した前後方向の長穴２３ａに止めネジ２４を挿入し、止めネジ２４を受け金具５の外周面に螺着することによって、受け金具５の外周面に前後方向へスライド調整自在に設けられている。 The lock mechanism 9 is provided on the outer peripheral surface of the metal fitting 5 so as to be slidable in the front-rear direction, and a concave locking portion formed at the annular flow rate adjusting handle portion 1 a provided at the tip of the inner cylinder 1 at the time of forward movement. A slide lock plate 23 that is locked to 1h and prevents rotation of the inner cylinder 1 is provided.
The slide lock plate 23 is inserted into a longitudinal hole 23 a formed in the slide lock plate 23 in the front-rear direction, and is screwed onto the outer peripheral surface of the metal fitting 5 by inserting the set screw 24 into the outer peripheral surface of the metal fitting 5. It is provided on the surface so as to be slidable in the front-back direction.

また、スライドロック板２３は、外筒２の後退時及びスライドロック板２３の前進時にスライドロック板２３の先端部が外筒２の基端部外周面に設けた流量固定リング１２の凹状の係止部１２ａに係止され、外筒２の回転を阻止して放水状態を保持できるように構成されている。   Further, the slide lock plate 23 has a concave engagement with the flow rate fixing ring 12 provided on the outer peripheral surface of the base end portion of the outer cylinder 2 when the outer cylinder 2 moves backward and when the slide lock plate 23 moves forward. It is latched by the stop part 12a, and it is comprised so that rotation of the outer cylinder 2 can be prevented and a water discharge state can be maintained.

更に、スライドロック板２３と受け金具５との間には、スライドロック板２３を位置決めする位置決め機構２５を設けられている。
この位置決め機構２５は、スライドロック板２３に設けたハウジング２６ａ、ボール２６ｂ及びスプリング２６ｃから成るボールプランジャー２６と、受け金具５の外周面に前後方向に一定の間隔で形成され、ボールプランジャー２６のボール２６ｂが係止される三つの係止溝５ｅとから成り、スライドロック板２３が流量調整ハンドル部１ａの凹状の係止部１ｈ及び流量固定リング１２の凹状の係止部１２ａにそれぞれ非係止状態と成る非係止位置と、スライドロック板２３が流量調整ハンドル部１ａの凹状の係止部１ｈに係止される第１係止位置と、スライドロック板２３が流量調整ハンドル部１ａの凹状の係止部１ｈ及び流量固定リング１２の凹状の係止部１２ａの両方に係止される第２係止位置とを取り得るように構成されている。 Further, a positioning mechanism 25 for positioning the slide lock plate 23 is provided between the slide lock plate 23 and the receiving metal 5.
The positioning mechanism 25 is formed on the outer peripheral surface of the housing 5a, the ball 26b, and the spring 26c provided on the slide lock plate 23, and on the outer peripheral surface of the receiving bracket 5 at regular intervals in the front-rear direction. And the slide lock plate 23 is not attached to the concave locking portion 1h of the flow rate adjusting handle portion 1a and the concave locking portion 12a of the flow rate fixing ring 12, respectively. A non-locking position where the locking state is set, a first locking position where the slide lock plate 23 is locked to the concave locking portion 1h of the flow rate adjusting handle portion 1a, and a slide lock plate 23 being the flow rate adjusting handle portion 1a. The second locking position locked to both the concave locking portion 1h and the concave locking portion 12a of the flow rate fixing ring 12 is configured.

尚、図２において、２７は下流側内筒１Ａと上流側内筒１Ｂとの間をシールするＯリング、２８は内筒１と外筒２との間をシールするＯリング、２９は内筒１と受け金具５との間をシールするパッキン、３０は受け金具５と接続金具Ｂとの間をシールするパッキンである。   In FIG. 2, 27 is an O-ring that seals between the downstream inner cylinder 1A and the upstream inner cylinder 1B, 28 is an O-ring that seals between the inner cylinder 1 and the outer cylinder 2, and 29 is an inner cylinder. 1 is a seal that seals between the receiving metal 5 and 30 is a seal that seals between the receiving metal 5 and the connecting metal B.

而して、上述した消火用ノズルは、押し輪２１の噴霧角度調整ハンドル部２１ａを操作して外筒２を回転させ、外筒２を内筒１に対して後退させると、内筒１内を通過した水流は、先端のデフレクター３に当たり、進行方向が変化しながら外筒２とデフレクター３との間から消火用ノズルの軸線に対して所望の角度を持って放射される。このときの水流は、デフレクター３に当たった際に空気が混入されるため、消火用ノズルから噴霧状態で放射される（図５（イ）参照）。
尚、噴霧の角度は、外筒２の先端部とデフレクター３との位置により変化し、外筒２が内筒１に対して後退するに従い放水角度が大きくなる。 Thus, the fire extinguishing nozzle described above operates when the outer cylinder 2 is rotated by operating the spray angle adjusting handle portion 21a of the push ring 21 and the outer cylinder 2 is moved backward with respect to the inner cylinder 1. The water flow that has passed through hits the deflector 3 at the tip, and is radiated from the space between the outer cylinder 2 and the deflector 3 at a desired angle with respect to the axis of the fire-extinguishing nozzle while changing the traveling direction. Since the water flow at this time is mixed with air when it hits the deflector 3, it is radiated in a sprayed state from the fire extinguishing nozzle (see FIG. 5A).
In addition, the angle of spraying changes with the position of the front-end | tip part of the outer cylinder 2, and the deflector 3, and a water discharge angle becomes large as the outer cylinder 2 reverse | retreats with respect to the inner cylinder 1. FIG.

また、押し輪２１の噴霧角度調整ハンドル部２１ａを操作して外筒２を回転させ、外筒２を内筒１に対して前進させると、内筒１内を通過した水流は、外筒２が内筒１に対して前進するに従い放水角度が小さくなり、外筒２の先端部内周面とデフレクター３との間に形成される水路が消火用ノズルの軸線と平行になった時点で放水角度が無くなり、消火用ノズルから棒状状態で放射される（図５（ロ）参照）。   Further, when the outer cylinder 2 is rotated by operating the spray angle adjustment handle portion 21 a of the push wheel 21 and the outer cylinder 2 is advanced relative to the inner cylinder 1, the water flow that has passed through the inner cylinder 1 is changed to the outer cylinder 2. The water discharge angle becomes smaller as the nozzle moves forward with respect to the inner cylinder 1, and the water discharge angle becomes when the water channel formed between the inner peripheral surface of the tip of the outer cylinder 2 and the deflector 3 becomes parallel to the axis of the fire extinguishing nozzle. Is lost and emitted from the fire-extinguishing nozzle in a rod-like state (see FIG. 5B).

更に、外筒２を内筒１に対して更に前進させると、外筒２の弁座部２ａがデフレクター３に当座してスピンドル４を前方へ引っ張ると共に、スピンドル４の基端部に設けた羽根部４ａが内筒１に形成した段部に当たり、これにより外筒２の弁座部２ａがデフレクター３に押し付けられて水路が閉鎖され、消火用ノズルは放水停止状態となる（図５（ハ）参照）。   Further, when the outer cylinder 2 is further advanced with respect to the inner cylinder 1, the valve seat 2a of the outer cylinder 2 comes into contact with the deflector 3 to pull the spindle 4 forward, and the blade provided at the base end of the spindle 4 The portion 4a hits a step formed on the inner cylinder 1, whereby the valve seat 2a of the outer cylinder 2 is pressed against the deflector 3 to close the water channel, and the fire extinguishing nozzle is in a water discharge stop state (FIG. 5 (c)). reference).

そして、外筒２が内筒１に対して後退している状態（噴霧放水状態又は棒状放水状態）で流量調整ハンドル部１ａを操作して内筒１を正逆回転させると、内筒１の下流側隔壁１ｆに形成した下流側開口１ｇと受け金具５の上流側隔壁５ｃに形成した上流側開口５ｄとの開口面積が変化し、大流量から小流量まで無段階で流量調整を行える（図６（イ）参照）。   Then, when the outer cylinder 2 is moved backward with respect to the inner cylinder 1 (a spray water discharge state or a rod-like water discharge state) and the flow control handle 1a is operated to rotate the inner cylinder 1 forward and backward, The opening area between the downstream opening 1g formed in the downstream partition 1f and the upstream opening 5d formed in the upstream partition 5c of the metal fitting 5 changes, and the flow rate can be adjusted steplessly from a large flow rate to a small flow rate (FIG. 6 (b)).

また、外筒２が内筒１に対して後退している状態でロック機構９のスライドロック板２３を前進させ、スライドロック板２３の先端部を内筒１に設けた環状の流量調整ハンドル部１ａに形成した凹状の係止部１ｈに係止させると、内筒１の回転が阻止されて水量の調整を行えなくなると共に、一定の水量を維持することができる（図６（ロ）参照）。   In addition, the slide lock plate 23 of the lock mechanism 9 is advanced in a state where the outer cylinder 2 is retracted with respect to the inner cylinder 1, and an annular flow rate adjusting handle portion in which the tip of the slide lock plate 23 is provided in the inner cylinder 1. When the concave locking portion 1h formed on 1a is locked, rotation of the inner cylinder 1 is prevented and the water volume cannot be adjusted, and a constant water volume can be maintained (see FIG. 6B). .

前記の状態でスライドロック板２３を更に前進させ、スライドロック板２３の先端部を外筒２に設けた流量固定リング１２の凹状の係止部１２ａに係止させると、外筒２の回転が阻止されて放水状態が保持されることになる（図６（ハ）参照）。このとき、消火用ノズルは、全開状態となっている。そのため、スライドロック板２３が流量固定リング１２の係止部１２ａに係止されているときには、消火用ノズルが全開していることを確認することができる。   When the slide lock plate 23 is further advanced in the above-described state, and the tip end portion of the slide lock plate 23 is locked to the concave locking portion 12a of the flow rate fixing ring 12 provided on the outer cylinder 2, the rotation of the outer cylinder 2 is performed. It is blocked and the water discharge state is maintained (see FIG. 6 (C)). At this time, the fire extinguishing nozzle is fully open. Therefore, when the slide lock plate 23 is locked to the locking portion 12a of the flow rate fixing ring 12, it can be confirmed that the fire-extinguishing nozzle is fully open.

消火用ノズルと他の消火用ホースＡとを接続する場合には、雄型金具８を構成する外筒２の先端部を他の消火用ホースＡの基端部に設けた雌型金具７の環状の爪座１７に差し込む。そうすると、外筒２の先端が爪座１７の内方へ突出している爪１８に当接するが、爪１８の内面が傾斜面となっているために外筒２の押圧力によって爪１８が板バネ１９の弾性力に抗して外方へ押し広げられる。これにより、外筒２の先端部は、爪座１７内に順次差し込まれて行く。   When connecting the fire-extinguishing nozzle and another fire-extinguishing hose A, the female metal fitting 7 in which the distal end portion of the outer cylinder 2 constituting the male metal fitting 8 is provided at the base end of the other fire-extinguishing hose A is used. Insert into the annular nail seat 17. If it does so, the front-end | tip of the outer cylinder 2 will contact | abut to the nail | claw 18 which protrudes inward of the nail | claw seat 17, but since the inner surface of the nail | claw 18 is an inclined surface, the nail | claw 18 will be leaf spring by the pressing force of the outer cylinder 2. It is pushed outward against the elastic force of 19. Thereby, the front-end | tip part of the outer cylinder 2 is inserted in the nail | claw seat 17 sequentially.

外筒２の環状突部２ｃが爪１８を越える位置まで差し込まれると、爪１８が板バネ１９の弾性力により爪座１７の内方へ突出し、外筒２の環状突部２ｃの背面側へ係止され、これにより雌型金具７と雄型金具８とは抜け止めされた状態に接続される（図８参照）。   When the annular protrusion 2c of the outer cylinder 2 is inserted to a position beyond the claw 18, the claw 18 protrudes inward of the claw seat 17 by the elastic force of the leaf spring 19 to the back side of the annular protrusion 2c of the outer cylinder 2. Thus, the female metal fitting 7 and the male metal fitting 8 are connected in a state of being prevented from coming off (see FIG. 8).

尚、消火用ノズルと他の消火用ホースＡとの接続時には、消火用ノズルを全閉状態にし、消火用ノズルと他の消火用ホースＡとの接続後には、消火用ノズルを全開状態とすると共に、ロック機構９により消火用ノズルを全開状態に保持する。   The fire-extinguishing nozzle is fully closed when the fire-extinguishing nozzle is connected to the other fire-extinguishing hose A, and the fire-extinguishing nozzle is fully opened after the fire-extinguishing nozzle and the other fire extinguishing hose A are connected. At the same time, the fire-extinguishing nozzle is held in the fully open state by the lock mechanism 9.

また、消火用ノズルと他の消火用ホースＡとの接続を解除する場合には、雄型金具８の押し輪２１を外筒２の先端部側へスライド移動させる。そうすると、押し輪２１の先端部が爪１８の傾斜面を押し、爪１８が板バネ１９の弾性力に抗して外筒２の環状突部２ｃの外径よりも外方へ押し広げられ、環状突部２ｃと爪１８の係止が外れる。これによって、雄型金具８を雌型金具７から引き抜くことができる。   When the connection between the fire-extinguishing nozzle and the other fire-extinguishing hose A is released, the push ring 21 of the male metal fitting 8 is slid to the distal end side of the outer cylinder 2. Then, the tip of the push ring 21 pushes the inclined surface of the claw 18, and the claw 18 is pushed outward from the outer diameter of the annular protrusion 2 c of the outer cylinder 2 against the elastic force of the leaf spring 19. The engagement between the annular protrusion 2c and the claw 18 is released. Thereby, the male metal fitting 8 can be pulled out from the female metal fitting 7.

このように、上述した消火用ノズルは、流量調整機構６を備えているため、流量調整機構６を操作することによって、消火活動時には、消火設備として必要な水圧、水量を確保でき、また、操作の習熟を目的とした日常の散水時には、低水圧、低水量に切り替えて使用することができ、地域住民が安全且つ良好に散水作業を行える。   Thus, since the above-mentioned fire extinguishing nozzle is provided with the flow rate adjusting mechanism 6, by operating the flow rate adjusting mechanism 6, it is possible to ensure the water pressure and the amount of water necessary for the fire extinguishing equipment during the fire fighting operation. During daily watering for the purpose of learning, it can be used by switching to low water pressure and low water volume, and local residents can perform watering work safely and well.

また、消火用ノズルは、流量調整機構６を備えているため、大流量から小流量まで無段階で流量調整を行えると共に、棒状放水時及び噴霧放水時においても無段階で流量を調整することができる。   Moreover, since the fire-extinguishing nozzle is provided with the flow rate adjusting mechanism 6, the flow rate can be adjusted steplessly from a large flow rate to a small flow rate, and the flow rate can be adjusted steplessly during rod-like water discharge and spray water discharge. it can.

更に、消火用ノズルは、他の消火用ホースＡの基端部に設けた雄型金具８に着脱自在に接続される雌型金具７を備えているため、消火活動時に消火用ホースＡの長さが不足する場合には、近くの別の消火設備から消火用ホースＡとノズルを借用し、取り出した消火用ホースＡの基端部を消火用ノズルの雄型金具８に接続することによって、消火用ホースＡを延長することができる。しかも、他の消火用ホースＡを接続する際に消火用ノズルを取り外すことなく、他の消火用ホースＡを接続することができると共に、消火栓格納箱内の消火栓弁を閉止することなく、消火用ノズルで水流を止めることができるため、誤ったタイミングでの消火栓弁の開放による事故を防止することができ、迅速で有効な消火活動を行える。   Furthermore, since the fire-extinguishing nozzle includes a female metal fitting 7 that is detachably connected to a male metal fitting 8 provided at the base end of another fire-extinguishing hose A, the length of the fire-extinguishing hose A can be reduced. If there is a shortage, borrow fire extinguishing hose A and nozzle from another nearby fire extinguishing equipment, and connect the base end of the fire extinguishing hose A to the male fitting 8 of the extinguishing nozzle, The fire hose A can be extended. Moreover, when connecting another fire hose A, it is possible to connect the other fire hose A without removing the fire extinguishing nozzle, and for fire fighting without closing the fire hydrant valve in the fire hydrant storage box. Since the water flow can be stopped with the nozzle, accidents due to the opening of the fire hydrant valve at an incorrect timing can be prevented, and quick and effective fire extinguishing activities can be performed.

加えて、消火用ノズルは、流量調整機構６の流量調整機能をロックするロック機構９を備えているため、流量調整機構６のロック状態を解除することによって、大流量から小流量まで無段階で流量調整を行え、また、消火活動時に流量調整機構６をロック状態とすることによって、水量が誤って減少するのを防止することができ、消火活動を確実且つ良好に行える。また、他の消火用ホースＡの接続後においても、流量調整機構６をロック状態にすることによって、消火用ノズルを放水状態に保持することができる。   In addition, since the fire extinguishing nozzle includes a lock mechanism 9 that locks the flow rate adjustment function of the flow rate adjustment mechanism 6, the flow rate adjustment mechanism 6 can be unlocked steplessly from a large flow rate to a small flow rate. The flow rate can be adjusted, and the flow rate adjusting mechanism 6 can be locked during the fire extinguishing activity, so that it is possible to prevent the water amount from being accidentally reduced, and the fire extinguishing activity can be performed reliably and satisfactorily. Moreover, even after the connection of the other fire hose A, the fire-extinguishing nozzle can be kept in the water discharge state by setting the flow rate adjusting mechanism 6 in the locked state.

図９〜図１３は本発明の第２の実施形態に係る消火用ノズルを示し、当該消火用ノズルは、多くの木造住宅が密集する町並みや、地域の防災用として設置される消火設備に用いられるものであり、消火用ホースＡの先端部に接続されて消火設備として必要な水圧、水量を確保しつつ、操作の習熟を目的とした日常の散水用として低水圧、低水量に切り替えて使用することができ、また、消火活動時に消火用ホースＡの長さが不足する場合に、消火用ホースＡの先端部に接続した消火用ノズルを外すことなく、消火用ノズル自体に他の消火用ホースＡを簡単且つ容易に接続できるようにしたものである。   FIGS. 9-13 shows the fire-extinguishing nozzle according to the second embodiment of the present invention, and the fire-extinguishing nozzle is used in a street where many wooden houses are densely packed or in a fire extinguishing facility installed for disaster prevention in the area. It is connected to the tip of the fire hose A, and it is used by switching to low water pressure and low water volume for daily sprinkling for the purpose of learning operation while securing the water pressure and water volume necessary for fire extinguishing equipment. If the length of the fire hose A is insufficient during fire fighting, the fire extinguishing nozzle itself can be used for other fire fighting without removing the fire extinguishing nozzle connected to the tip of the fire hose A. The hose A can be easily and easily connected.

前記消火用ノズルは、図９及び図１０に示す如く、水路を形成する内筒１と、内筒１の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部２ａを形成した外筒２と、内筒１の先端部内方に配設され、先端部に外筒２の弁座部２ａに当離座し得るデフレクター３を設けたスピンドル４と、内筒１の基端部外周面に相対回転自在に嵌合され、消火用ホースＡの先端部に接続される筒状の受け金具５と、消火用ノズルの基端部内方に設けられ、大流量から小流量まで流量調整を行える流量調整機構６と、消火用ノズルの先端部に設けられ、他の消火用ホースＡの基端部に設けた雌型金具７に着脱自在に接続される雄型金具８と、内筒１の回転を阻止するロック機構９と、外筒２の前進を阻止するフック機構３１と、を備えており、外筒２の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能となっている。   As shown in FIGS. 9 and 10, the fire-extinguishing nozzle is screwed to the inner cylinder 1 forming a water channel and to the outer peripheral surface of the front end portion of the inner cylinder 1 so as to be rotatable and movable back and forth in the front-rear direction. An outer cylinder 2 having a valve seat portion 2a formed on the surface thereof, and a spindle 4 provided with a deflector 3 disposed on the inner end of the inner cylinder 1 and capable of coming into contact with the valve seat portion 2a of the outer cylinder 2 at the front end portion. And a cylindrical receiving metal fitting 5 that is fitted to the outer peripheral surface of the base end portion of the inner cylinder 1 so as to be relatively rotatable and connected to the distal end portion of the fire extinguishing hose A, and is provided inside the base end portion of the fire extinguishing nozzle. The flow rate adjusting mechanism 6 capable of adjusting the flow rate from a large flow rate to a small flow rate and a female fitting 7 provided at the distal end portion of the fire extinguishing nozzle A and detachably connected to the base end portion of the other fire extinguishing hose A. A male fitting 8, a lock mechanism 9 that prevents the inner cylinder 1 from rotating, and a hook mechanism 31 that prevents the outer cylinder 2 from moving forward. It has a, and can switch to the water discharge stop or bar water discharge or spraying water discharge water discharge state by the forward and backward movement of the outer tube 2.

具体的には、前記内筒１は、金属材により筒状に形成されており、内方にデフレクター３を設けたスピンドル４が配設される筒状の下流側内筒１Ａと、下流側内筒１Ａの基端部に回転自在に嵌合された筒状の上流側内筒１Ｂとから成る。   Specifically, the inner cylinder 1 is formed of a metal material into a cylindrical shape, and has a cylindrical downstream inner cylinder 1A in which a spindle 4 having a deflector 3 provided therein is disposed, and a downstream inner cylinder 1A. It consists of the cylindrical upstream inner cylinder 1B rotatably fitted to the base end of the cylinder 1A.

下流側内筒１Ａの先端部外周面には、外筒２が回転自在且つ前後方向へ進退移動自在に螺着される雄ネジ１ｂが形成されていると共に、下流側内筒１Ａの基端部外周面には、受け金具５が螺着される雄ネジ１ｉが形成されている。この下流側内筒１Ａの基端部内方には、上流側内筒１Ｂの先端部が回転自在に嵌合されている。 On the outer peripheral surface of the distal end portion of the downstream inner cylinder 1A, a male screw 1b is formed on which the outer cylinder 2 is screwed so that the outer cylinder 2 can be rotated and moved forward and backward, and the proximal end portion of the downstream inner cylinder 1A. A male screw 1i to which the receiving metal fitting 5 is screwed is formed on the outer peripheral surface. A distal end portion of the upstream inner cylinder 1B is rotatably fitted inside the base end portion of the downstream inner cylinder 1A.

そして、内筒１は、その下流側内筒１Ａが受け金具５の先端部に螺着されていると共に、上流側内筒１Ｂが受け金具５内に回転自在に収容されており、上流側内筒１Ｂと受け金具５の外周面に回転自在に嵌合した環状の流量調整リング３２とを、受け金具５に形成した円周方向のスリット５ｆに挿通された連結ボルト３３で連結し、流量調整リング３２を回転操作することにより上流側内筒１Ｂを回転操作できるようになっている。
尚、スリット５ｆの長さは、上流側内筒１Ｂを９０°正逆回転できる長さに設定されている。 The inner cylinder 1 has a downstream inner cylinder 1A screwed to the tip of the receiving metal fitting 5 and an upstream inner cylinder 1B rotatably accommodated in the receiving metal fitting 5, The cylinder 1B and an annular flow rate adjusting ring 32 that is rotatably fitted to the outer peripheral surface of the metal fitting 5 are connected by a connecting bolt 33 that is inserted into a circumferential slit 5f formed in the metal fitting 5, thereby adjusting the flow rate. By rotating the ring 32, the upstream inner cylinder 1B can be rotated.
The length of the slit 5f is set to a length that allows the upstream inner cylinder 1B to rotate 90 ° forward and backward.

前記外筒２は、金属材により筒状に形成されており、外筒２の先端部内周面には、環状の弁座部２ａが形成されていると共に、外筒２の中間部内周面には、下流側内筒１Ａの雄ネジ１ｂに回転自在且つ前後方向へ進退移動自在に螺着される雌ネジ２ｂが形成されている。   The outer cylinder 2 is formed in a cylindrical shape from a metal material, and an annular valve seat 2 a is formed on the inner peripheral surface of the tip of the outer cylinder 2, and on the inner peripheral surface of the intermediate part of the outer cylinder 2. Is formed with a female screw 2b that is screwed onto the male screw 1b of the downstream inner cylinder 1A so as to be rotatable and movable forward and backward.

前記スピンドル４は、内筒１の下流側内筒１Ａ内に前後方向へ移動自在に配設されており、スピンドル４の先端部には、外筒２の弁座部２ａに当離座し得る環状のデフレクター３がビス１４により固定されている。   The spindle 4 is disposed in the inner cylinder 1 </ b> A on the downstream side of the inner cylinder 1 so as to be movable in the front-rear direction, and can be seated on and away from the valve seat 2 a of the outer cylinder 2 at the tip of the spindle 4. An annular deflector 3 is fixed by screws 14.

また、スピンドル４の基端部には、スピンドル４を下流側内筒１Ａ内に保持して下流側内筒１Ａとスピンドル４との間に環状の通路を形成すると共に、下流側内筒１Ａの内周面に形成した段部に係止される放射状の羽根部４ａが形成されている。   At the base end of the spindle 4, the spindle 4 is held in the downstream inner cylinder 1A to form an annular passage between the downstream inner cylinder 1A and the spindle 4, and the downstream inner cylinder 1A Radial blades 4a that are locked to the stepped portions formed on the inner peripheral surface are formed.

前記受け金具５は、金属材により筒状に形成されており、受け金具５の基端部内周面には、消火用ホースＡの先端部に設けた接続金具Ｂに螺着される雌ネジ５ａが形成されていると共に、受け金具５の先端部内周面には、下流側内筒１Ａの雄ネジ１ｉに螺着される雌ネジ５ｂが形成されている。   The receiving metal fitting 5 is formed in a cylindrical shape from a metal material, and a female screw 5a is screwed onto a connecting metal fitting B provided at the distal end portion of the fire hose A on the inner peripheral surface of the base end portion of the receiving metal fitting 5. Is formed on the inner peripheral surface of the front end portion of the metal fitting 5 and is formed with a female screw 5b that is screwed onto the male screw 1i of the downstream inner cylinder 1A.

前記流量調整機構６は、受け金具５の外周面に設けられ、内筒１に連動連結されて内筒１を回転操作する流量調整リング３２と、内筒１の上流側内筒１Ｂの基端部内方に一体的に設けた下流側隔壁１ｆと、下流側隔壁１ｆに形成した扇状の下流側開口１ｇと、受け金具５の内方に一体的に設けられ、下流側隔壁１ｆの上流側面に摺動した状態で相対回転する上流側隔壁５ｃと、上流側隔壁５ｃに形成され、下流側開口１ｇに合致すると共に、下流側開口１ｇと齟齬状態になる扇状の上流側開口５ｄとから成り、流量調整リング３２を回転操作して上流側内筒１Ｂを回転させ、下流側開口１ｇと上流側開口５ｄの開口面積を変化させることより、大流量から小流量まで無段階で流量調整を行える構成となっている。   The flow rate adjusting mechanism 6 is provided on the outer peripheral surface of the metal fitting 5 and is interlocked with the inner cylinder 1 to rotate the inner cylinder 1 and the proximal end of the upstream inner cylinder 1B of the inner cylinder 1. A downstream partition 1f provided integrally in the inner part, a fan-shaped downstream opening 1g formed in the downstream partition 1f, and an inner part of the receiving metal 5 are provided integrally on the upstream side surface of the downstream partition 1f. An upstream partition 5c that rotates relative to the sliding state, and a fan-shaped upstream opening 5d that is formed in the upstream partition 5c, matches the downstream opening 1g, and is in a saddle state with the downstream opening 1g, A configuration in which the flow rate adjusting ring 32 is rotated to rotate the upstream inner cylinder 1B and the opening area of the downstream side opening 1g and the upstream side opening 5d is changed, so that the flow rate can be adjusted steplessly from a large flow rate to a small flow rate. It has become.

また、下流側開口１ｇ及び上流側開口５ｄは、下流側隔壁１ｆ及び上流側隔壁５ｃに内筒１及び受け金具５の軸心を中心にしてそれぞれ対称状に二つずつ配置されている。   Further, the downstream side opening 1g and the upstream side opening 5d are arranged symmetrically on the downstream side partition wall 1f and the upstream side partition wall 5c, two symmetrically about the axis of the inner cylinder 1 and the receiving metal fitting 5, respectively.

尚、上記の実施形態においては、下流側隔壁１ｆ及び上流側隔壁５ｃにそれぞれ下流側開口１ｇ及び上流側開口５ｄを二つずつ形成したが、他の実施形態においては、下流側隔壁１ｆ及び上流側隔壁５ｃに半円状の下流側開口１ｇ及び上流側開口５ｄを一つずつ形成しても良い。   In the above embodiment, two downstream openings 1g and two upstream openings 5d are formed in the downstream partition 1f and the upstream partition 5c, respectively. However, in other embodiments, the downstream partition 1f and the upstream partition You may form the semicircular downstream opening 1g and the upstream opening 5d one by one in the side partition 5c.

前記雄型金具８は、他の消火用ホースＡの基端部に設けた差込み式の雌型金具７に着脱自在に接続される差込み式の雄型金具８から成り、この差込み式の雄型金具８には、例えば、消火用ホースＡと消火栓弁等の連結及び分離をワンタッチで行える従来公知の町野式（登録商標）結合金具の雄型金具８が使用されている。   The male metal fitting 8 is composed of a plug-in male metal fitting 8 which is detachably connected to a plug-in female metal fitting 7 provided at the base end of another fire extinguishing hose A. As the metal fitting 8, for example, a conventionally known Machino type (registered trademark) male metal fitting 8 capable of connecting and separating the fire hose A and the fire hydrant valve and the like with one touch is used.

雌型金具７は、図７及び図８に示す雌型金具７と同一構造に構成されているため、図７及び図８に示す雌型金具７と同じ部材・部位には、同一の参照番号を付し、その詳細な説明を省略する。   Since the female metal fitting 7 has the same structure as the female metal fitting 7 shown in FIGS. 7 and 8, the same reference numerals are given to the same members and parts as the female metal fitting 7 shown in FIGS. And detailed description thereof is omitted.

一方、雄型金具８は、雌型金具７に挿入される外筒２と、外筒２の先端部外周面に螺着され、雌型金具７に設けた複数の爪１８に着脱自在に係止される環状突部２ｃと、外筒２に前後方向へスライド自在に外嵌され、雌型金具７の各爪１８と外筒２の環状突部２ｃとの係止を外す筒状の押し輪２１とから成る。尚、環状突部２ｃは、外筒２と一体的に形成しても良い。   On the other hand, the male metal fitting 8 is screwed onto the outer cylinder 2 inserted into the female metal fitting 7 and the outer peripheral surface of the distal end portion of the outer cylinder 2, and is detachably engaged with a plurality of claws 18 provided on the female metal fitting 7. An annular protrusion 2c to be stopped, and a cylindrical pusher that is slidably fitted to the outer cylinder 2 so as to be slidable in the front-rear direction, and that unlocks the claws 18 of the female metal fitting 7 and the annular protrusion 2c of the outer cylinder 2 It consists of a ring 21. The annular protrusion 2 c may be formed integrally with the outer cylinder 2.

前記押し輪２１は、外筒２に前後方向へスライド自在で且つ外筒２に対して回転不能に外嵌されており、外筒２を回転操作して進退移動させ、噴霧角度を調整する環状の噴霧角度調整ハンドル部２１ａを備えている。この押し輪２１は、雌型金具７と雄型金具８の連結を解除する機能と、外筒２を回転操作する機能とを有している。   The push ring 21 is fitted to the outer cylinder 2 so as to be slidable in the front-rear direction and to be non-rotatable with respect to the outer cylinder 2. The ring 21 adjusts the spray angle by rotating the outer cylinder 2 to move forward and backward. The spray angle adjusting handle portion 21a is provided. The push ring 21 has a function of releasing the connection between the female metal fitting 7 and the male metal fitting 8 and a function of rotating the outer cylinder 2.

また、押し輪２１の噴霧角度調整ハンドル部２１ａには、ハウジング２２ａ、ボール２２ｂ及びスプリング２２ｃから成るネジ式のボールプランジャー２２が挿着されており、ボールプランジャー２２のボール２２ｂが外筒２の外周面に前後方向に沿って形成したガイド溝２ｄに入り込んでいる。その結果、外筒２に外嵌された押し輪２１は、外筒２に対して前後方向へスライド自在で且つ回転不能になっている。   A screw-type ball plunger 22 including a housing 22a, a ball 22b, and a spring 22c is inserted into the spray angle adjusting handle portion 21a of the push wheel 21, and the ball 22b of the ball plunger 22 is attached to the outer cylinder 2. The guide groove 2d formed along the front-rear direction on the outer peripheral surface of the guide. As a result, the push ring 21 fitted on the outer cylinder 2 is slidable in the front-rear direction with respect to the outer cylinder 2 and cannot rotate.

更に、押し輪２１は、ガイド溝２ｄの一端部底面に形成した位置決め用の係止溝２ｅにボールプランジャー２２のボール２２ｂが係止されることによって、外筒２の環状突部２ｃから離間した位置に保持され、不必要に外筒２に対して前後方向へスライドしないようになっている。   Further, the push ring 21 is separated from the annular protrusion 2c of the outer cylinder 2 by the ball 22b of the ball plunger 22 being locked to the positioning locking groove 2e formed on the bottom surface of one end of the guide groove 2d. It is held in this position, and is not unnecessarily slid in the front-rear direction relative to the outer cylinder 2.

前記ロック機構９は、受け金具５の外周面に回転自在に嵌合した環状の流量調整リング３２に形成した係止孔３２ａと、受け金具５に設けられ、前記係止孔３２ａの内周面に係止されて流量調整リング３２の回転を阻止するボール２６ｂ及びスプリング２６ｃを備えた二つのボールプランジャー２６と、受け金具５に固定された回り止め部材３４と、回り止め部材３４に設けられ、係止孔３２ａとボール２６ｂの係止状態を解除するストッパー３５とから成り、受け金具５の外周面に円周方向へ９０°間隔を空けて配置した二つのボールプランジャー２６のボール２６ｂが流量調整リング３２の係止孔３２ａにそれぞれ挿入係止されることによって、流量調整リング３２を全開位置と全閉位置とに亘ってロックできるようになっている。   The lock mechanism 9 is provided in the annular flow rate adjusting ring 32 that is rotatably fitted to the outer peripheral surface of the receiving metal fitting 5, and the inner peripheral surface of the engaging hole 32a. Two ball plungers 26 provided with a ball 26 b and a spring 26 c that are prevented from rotating by the flow rate adjusting ring 32, an anti-rotation member 34 fixed to the metal fitting 5, and an anti-rotation member 34. The ball 26b of the two ball plungers 26 is composed of a locking hole 32a and a stopper 35 for releasing the locking state of the ball 26b, and arranged on the outer peripheral surface of the receiving metal 5 at an interval of 90 ° in the circumferential direction. By being inserted and locked in the locking holes 32a of the flow rate adjusting ring 32, the flow rate adjusting ring 32 can be locked across the fully open position and the fully closed position.

また、ストッパー３５は、その先端部が回り止め部材３４から外方へ突出する状態で回り止め部材３４内に受け金具５の半径方向へ移動自在に収容保持されており、ストッパー３５を押して回り止め部材３４内に押し込むと、ストッパー３５によりボールプランジャー２６のボール２６ｂがスプリング２６ｃの弾性力に抗して流量調整リング３２の係止孔３２ａから押し出され、ボールプランジャー２６のボール２６ｂと流量調整リング３２の係止孔３２ａとの係止状態が解除されるようになっている。その結果、流量調整リング３２を受け金具５に対して回転させることができる。   The stopper 35 is housed and held in the locking member 34 so as to be movable in the radial direction of the metal fitting 5 with its tip protruding outward from the locking member 34. When pushed into the member 34, the ball 26b of the ball plunger 26 is pushed out from the locking hole 32a of the flow rate adjusting ring 32 against the elastic force of the spring 26c by the stopper 35, and the flow rate adjustment with the ball 26b of the ball plunger 26 is performed. The locked state of the ring 32 with the locking hole 32a is released. As a result, the flow rate adjusting ring 32 can be rotated with respect to the receiving metal fitting 5.

前記フック機構３１は、受け金具５の先端部外周面に固定した基台３１ａと、基台３１ａに揺動自在に支持され、外筒２の基端部外周面に形成した環状の段部２ｆに係脱可能に係止されるフック板３１ｂとから成り、外筒２の後退時にフック板３１ｂを外筒２の段部２ｆに係止することにより外筒２の前進を阻止して放水状態を保持できるようになっている。   The hook mechanism 31 includes a base 31a fixed to the outer peripheral surface of the distal end portion of the receiving metal fitting 5 and an annular step 2f formed on the outer peripheral surface of the base end portion of the outer cylinder 2 so as to be swingably supported by the base 31a. The hook plate 31b is detachably locked to the outer cylinder 2, and when the outer cylinder 2 is retracted, the hook plate 31b is locked to the step 2f of the outer cylinder 2 to prevent the outer cylinder 2 from moving forward and the water is discharged. Can be held.

尚、図１０において、２７は下流側内筒１Ａと上流側内筒１Ｂとの間をシールするＯリング、２８は内筒１と外筒２との間をシールするＯリング、２９内筒１と受け金具５との間をシールするパッキン、３０は受け金具５と接続金具Ｂとの間をシールするパッキン、３６は連結ボルト３３に挿着され、受け金具５のスリット５ｆ内に位置するスペーサである。   In FIG. 10, 27 is an O-ring that seals between the downstream inner cylinder 1A and the upstream inner cylinder 1B, 28 is an O-ring that seals between the inner cylinder 1 and the outer cylinder 2, and 29 inner cylinder 1 Packing 30 that seals between the metal fitting 5 and the metal fitting 5, 30 is a seal that seals between the metal fitting 5 and the connection metal B, and 36 is a spacer that is inserted into the connecting bolt 33 and is located in the slit 5 f of the metal fitting 5. It is.

而して、上述した消火用ノズルは、第１の実施形態に係る消火用ノズルと同様に、押し輪２１の噴霧角度調整ハンドル部２１ａを操作して外筒２を回転させ、外筒２を内筒１に対して進退移動させることによって、放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替えることができる。   Thus, the fire-extinguishing nozzle described above operates the spray angle adjustment handle portion 21a of the push ring 21 to rotate the outer cylinder 2 in the same manner as the fire-extinguishing nozzle according to the first embodiment. By moving forward and backward with respect to the inner cylinder 1, the water discharge state can be switched to water discharge stop, rod-shaped water discharge or spray water discharge.

また、消火用ノズルは、外筒２が内筒１に対して後退している状態（噴霧放水状態又は棒状放水状態）で流量調整リング３２を操作して上流側内筒１Ｂを正逆回転させると、上流側内筒１Ｂの下流側隔壁１ｆに形成した下流側開口１ｇと受け金具５の上流側隔壁５ｃに形成した上流側開口５ｄとの開口面積が変化し、大流量から小流量まで無段階で流量調整を行える。   The fire-extinguishing nozzle operates the flow rate adjustment ring 32 in a state where the outer cylinder 2 is retracted from the inner cylinder 1 (a spray water discharge state or a rod-like water discharge state) to rotate the upstream inner cylinder 1B forward and backward. And the opening area between the downstream opening 1g formed in the downstream partition 1f of the upstream inner cylinder 1B and the upstream opening 5d formed in the upstream partition 5c of the receiving metal fitting 5 changes, and there is no large flow rate to small flow rate. The flow rate can be adjusted in stages.

更に、消火用ノズルは、全開位置と全閉位置とのときに流量調整リング３２がロック機構９により回転不能にロックされ、全閉位置又は全開位置に保持される。   Further, in the fire-extinguishing nozzle, the flow rate adjusting ring 32 is locked by the lock mechanism 9 so as not to rotate when in the fully open position and the fully closed position, and is held in the fully closed position or the fully open position.

そして、消火用ノズルは、外筒２が後退したときにフック機構３１のフック板３１ｂを外筒２の基端部外周面に形成した環状の段部２ｆに係止させると、外筒２の前進が阻止され、放水状態に保持される。   Then, when the fire extinguishing nozzle engages the hook plate 31b of the hook mechanism 31 with the annular step 2f formed on the outer peripheral surface of the base end of the outer cylinder 2 when the outer cylinder 2 moves backward, Advancement is prevented and the water is kept discharged.

上述した第２の実施形態に係る消火用ホースＡも、第１の実施形態に係る消火用ホースＡと同様の作用効果を奏することができる。   The fire hose A according to the second embodiment described above can also exhibit the same effects as the fire hose A according to the first embodiment.

１は内筒、１Ａは下流側内筒、１Ｂは上流側内筒、１ａは流量調整ハンドル部、１ｆは下流側隔壁、１ｇは下流側開口、２は外筒、２ａは弁座部、２ｃは環状突部、２ｆは環状の段部、３はデフレクター、４はスピンドル、５は受け金具、５ｃは上流側隔壁、５ｃ′は環状の突部、５ｃ″は流量調整板、５ｄは上流側開口、５ｆはスリット、６は流量調整機構、７は雌型金具、８は雄型金具、９はロック機構、１２は流量固定リング、１８は爪、２１は押し輪、２１ａは噴霧角度調整ハンドル部、２３はスライドロック板、２５は位置決め機構、２６ボールプランジャー、２６ｂはボール、３１はフック機構、３１ｂは、フック板、３２は流量調整リング、３３は連結ボルト、３４は回り止め部材、３５はストッパー、Ａは消火用ホース。   1 is an inner cylinder, 1A is a downstream inner cylinder, 1B is an upstream inner cylinder, 1a is a flow rate adjusting handle, 1f is a downstream partition, 1g is a downstream opening, 2 is an outer cylinder, 2a is a valve seat part, 2c Is an annular protrusion, 2f is an annular step, 3 is a deflector, 4 is a spindle, 5 is a receiving bracket, 5c is an upstream partition, 5c 'is an annular protrusion, 5c' 'is a flow rate adjusting plate, and 5d is an upstream side. Opening, 5f slit, 6 flow adjustment mechanism, 7 female fitting, 8 male fitting, 9 lock mechanism, 12 flow fixing ring, 18 claw, 21 push wheel, 21a spray angle adjustment handle Part, 23 is a slide lock plate, 25 is a positioning mechanism, 26 ball plunger, 26b is a ball, 31 is a hook mechanism, 31b is a hook plate, 32 is a flow adjustment ring, 33 is a connecting bolt, 34 is a detent member, 35 is a stopper, and A is a fire hose.

Claims (7)

水路を形成する内筒（１）と、内筒（１）の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部（２ａ）を形成した外筒（２）と、内筒（１）の先端部内方に配設され、先端部に外筒（２）の弁座部（２ａ）に当離座し得るデフレクター（３）を設けたスピンドル（４）と、内筒（１）の基端部外周面に相対回転自在に嵌合され、消火用ホース（Ａ）の先端部に接続される筒状の受け金具（５）とを具備し、外筒（２）の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能な消火用ノズルにおいて、前記消火用ノズルは、大流量から小流量まで流量調整を行える流量調整機構（６）と、他の消火用ホース（Ａ）の基端部に設けた雌型金具（７）に着脱自在に接続される雄型金具（８）とを備え、更に、前記受け金具（５）に、内筒（１）の回転を阻止して流量調整機構（６）の流量調整機能をロックするロック機構（９）を設け、当該ロック機構（９）は、受け金具（５）の外周面に前後方向へスライド調整自在に設けられ、前進時にその先端部が内筒（１）に設けた環状の流量調整ハンドル部（１ａ）に形成した係止部（１ｈ）に係止されて内筒（１）の回転を阻止するスライドロック板（２３）を備えていることを特徴とする消火用ノズル。 The inner cylinder (1) that forms the water channel and the valve seat (2a) are formed on the inner peripheral surface of the front end portion, and are screwed to the outer peripheral surface of the inner cylinder (1) so as to be rotatable and movable forward and backward. A spindle provided with an outer cylinder (2) and a deflector (3) which is disposed inwardly at the tip of the inner cylinder (1) and can come into contact with the valve seat (2a) of the outer cylinder (2) at the tip. (4) and a cylindrical receiving metal fitting (5) which is fitted to the outer peripheral surface of the base end portion of the inner cylinder (1) so as to be relatively rotatable and connected to the distal end portion of the fire hose (A). In the fire extinguishing nozzle that can switch the water discharge state to water discharge stop or rod water discharge or spray water discharge by moving the outer cylinder (2) forward and backward, the fire extinguishing nozzle is a flow rate adjusting mechanism that can adjust the flow rate from a large flow rate to a small flow rate ( 6) and a male removably connected to a female metal fitting (7) provided at the base end of another fire extinguishing hose (A) And a metal fitting (8), further, the receiving the bracket (5), a locking mechanism for locking the flow adjustment function and prevent rotation of the inner cylinder (1) flow rate adjusting mechanism (6) (9) is provided, The lock mechanism (9) is provided on the outer peripheral surface of the receiving metal fitting (5) so as to be slidable in the front-rear direction, and an annular flow rate adjusting handle (1a) whose tip is provided on the inner cylinder (1) when moving forward. A fire-extinguishing nozzle comprising a slide lock plate (23) that is locked to the locking portion (1h) formed on the inner cylinder to prevent the rotation of the inner cylinder (1) . 水路を形成する内筒（１）と、内筒（１）の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部（２ａ）を形成した外筒（２）と、内筒（１）の先端部内方に配設され、先端部に外筒（２）の弁座部（２ａ）に当離座し得るデフレクター（３）を設けたスピンドル（４）と、内筒（１）の基端部外周面に相対回転自在に嵌合され、消火用ホース（Ａ）の先端部に接続される筒状の受け金具（５）とを具備し、外筒（２）の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能な消火用ノズルにおいて、前記消火用ノズルは、大流量から小流量まで流量調整を行える流量調整機構（６）と、他の消火用ホース（Ａ）の基端部に設けた雌型金具（７）に着脱自在に接続される雄型金具（８）とを備え、更に、前記受け金具（５）に、内筒（１）の回転を阻止して流量調整機構（６）の流量調整機能をロックするロック機構（９）を設け、当該ロック機構（９）は、受け金具（５）の外周面に回転自在に嵌合した環状の流量調整リング（３２）に形成した係止孔（３２ａ）と、受け金具（５）に設けられ、前記係止孔（３２ａ）の内周面に係止されて流量調整リング（３２）の回転を阻止するボール（２６ａ）を備えた二つのボールプランジャー（２６）と、受け金具（５）に固定された回り止め部材（３４）と、回り止め部材（３４）に設けられ、係止孔（３２ａ）とボール（２６ｂ）の係止状態を解除するストッパー（３５）とを備え、流量調整リング（３２）を全開位置と全閉位置とに亘ってロックできる構成としたことを特徴とする消火用ノズル。 The inner cylinder (1) that forms the water channel and the valve seat (2a) are formed on the inner peripheral surface of the front end portion, and are screwed to the outer peripheral surface of the inner cylinder (1) so as to be rotatable and movable forward and backward. A spindle provided with an outer cylinder (2) and a deflector (3) which is disposed inwardly at the tip of the inner cylinder (1) and can come into contact with the valve seat (2a) of the outer cylinder (2) at the tip. (4) and a cylindrical receiving metal fitting (5) which is fitted to the outer peripheral surface of the base end portion of the inner cylinder (1) so as to be relatively rotatable and connected to the distal end portion of the fire hose (A). In the fire extinguishing nozzle that can switch the water discharge state to water discharge stop or rod water discharge or spray water discharge by moving the outer cylinder (2) forward and backward, the fire extinguishing nozzle is a flow rate adjusting mechanism that can adjust the flow rate from a large flow rate to a small flow rate ( 6) and a male removably connected to a female metal fitting (7) provided at the base end of another fire extinguishing hose (A) And a metal fitting (8), further, the receiving the bracket (5), a locking mechanism for locking the flow adjustment function and prevent rotation of the inner cylinder (1) flow rate adjusting mechanism (6) (9) is provided, The lock mechanism (9) is provided in a catch hole (32a) formed in an annular flow rate adjusting ring (32) that is rotatably fitted to the outer peripheral surface of the catch metal (5), and in the catch metal (5). Two ball plungers (26) provided with a ball (26a) locked to the inner peripheral surface of the locking hole (32a) to prevent the flow rate adjusting ring (32) from rotating, and a receiving metal fitting (5) A detent member (34) fixed to the detent member, and a detent member (34) provided with a detent (35) provided with a detent hole (32a) and a ball (26b). A structure capable of locking the ring (32) between the fully open position and the fully closed position; Extinguishing nozzle, characterized in that the. 水路を形成する内筒（１）と、内筒（１）の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部（２ａ）を形成した外筒（２）と、内筒（１）の先端部内方に配設され、先端部に外筒（２）の弁座部（２ａ）に当離座し得るデフレクター（３）を設けたスピンドル（４）と、内筒（１）の基端部外周面に相対回転自在に嵌合され、消火用ホース（Ａ）の先端部に接続される筒状の受け金具（５）とを具備し、外筒（２）の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能な消火用ノズルにおいて、前記消火用ノズルは、大流量から小流量まで流量調整を行える流量調整機構（６）と、他の消火用ホース（Ａ）の基端部に設けた雌型金具（７）に着脱自在に接続される雄型金具（８）とを備え、前記流量調整機構（６）は、内筒（１）に設けられ、外筒（２）と受け金具（５）の間に位置して内筒（１）を回転操作する流量調整ハンドル部（１ａ）と、内筒（１）の基端部内方に設けた下流側隔壁（１ｆ）と、下流側隔壁（１ｆ）に形成した少なくとも一つの下流側開口（１ｇ）と、受け金具（５）の内方に設けられ、下流側隔壁（１ｆ）の上流側面に摺動した状態で相対回転する上流側隔壁（５ｃ）と、上流側隔壁（５ｃ）に形成され、下流側開口（１ｇ）に合致すると共に、下流側開口（１ｇ）と齟齬状態になる上流側開口（５ｄ）とを備え、流量調整ハンドル部（１ａ）により内筒（１）を回転させて下流側開口（１ｇ）と上流側開口（５ｄ）の開口面積を変化させることより、大流量から小流量まで無段階で流量調整を行える構成としたことを特徴とする消火用ノズル。 The inner cylinder (1) that forms the water channel and the valve seat (2a) are formed on the inner peripheral surface of the front end portion, and are screwed to the outer peripheral surface of the inner cylinder (1) so as to be rotatable and movable forward and backward. A spindle provided with an outer cylinder (2) and a deflector (3) which is disposed inwardly at the tip of the inner cylinder (1) and can come into contact with the valve seat (2a) of the outer cylinder (2) at the tip. (4) and a cylindrical receiving metal fitting (5) which is fitted to the outer peripheral surface of the base end portion of the inner cylinder (1) so as to be relatively rotatable and connected to the distal end portion of the fire hose (A). In the fire extinguishing nozzle that can switch the water discharge state to water discharge stop or rod water discharge or spray water discharge by moving the outer cylinder (2) forward and backward, the fire extinguishing nozzle is a flow rate adjusting mechanism that can adjust the flow rate from a large flow rate to a small flow rate ( 6) and a male removably connected to a female metal fitting (7) provided at the base end of another fire extinguishing hose (A) And a metal fitting (8), wherein the flow rate adjusting mechanism (6) is provided on the inner cylinder (1), rotating the inner cylinder (1) located between the receiving and the outer tube (2) fitting (5) A flow rate adjusting handle portion (1a) to be operated, a downstream partition wall (1f) provided inside the proximal end of the inner cylinder (1), and at least one downstream opening (1g) formed in the downstream partition wall (1f) And formed in an upstream partition (5c) and an upstream partition (5c) that are provided inward of the catch (5) and relatively rotate while sliding on the upstream side of the downstream partition (1f), A downstream opening (1g) that coincides with the downstream opening (1g) and an upstream opening (5d) that is in a saddle state are provided, and the inner cylinder (1) is rotated downstream by the flow rate adjusting handle portion (1a). By changing the opening area of the side opening (1g) and the upstream side opening (5d), there is no flow from large flow to small flow Extinguishing nozzle, characterized in that it has a structure that allows the flow rate adjustment floors. 水路を形成する内筒（１）と、内筒（１）の先端部外周面に回転自在且つ前後方向へ進退移動自在に螺着され、先端部内周面に弁座部（２ａ）を形成した外筒（２）と、内筒（１）の先端部内方に配設され、先端部に外筒（２）の弁座部（２ａ）に当離座し得るデフレクター（３）を設けたスピンドル（４）と、内筒（１）の基端部外周面に相対回転自在に嵌合され、消火用ホース（Ａ）の先端部に接続される筒状の受け金具（５）とを具備し、外筒（２）の進退移動によって放水状態を放水停止又は棒状放水若しくは噴霧放水に切り替え可能な消火用ノズルにおいて、前記消火用ノズルは、大流量から小流量まで流量調整を行える流量調整機構（６）と、他の消火用ホース（Ａ）の基端部に設けた雌型金具（７）に着脱自在に接続される雄型金具（８）とを備え、前記流量調整機構（６）は、受け金具（５）の外周面に回転自在に設けられ、内筒（１）の基端部に連動連結されて内筒（１）の基端部を回転操作する流量調整リング（３２）と、内筒（１）の基端部内方に設けた下流側隔壁（１ｆ）と、下流側隔壁（１ｆ）に形成した少なくとも一つの下流側開口（１ｇ）と、受け金具（５）の内方に設けられ、下流側隔壁（１ｆ）の上流側面に摺動した状態で相対回転する上流側隔壁（５ｃ）と、上流側隔壁（５ｃ）に形成され、下流側開口（１ｇ）に合致すると共に、下流側開口（１ｇ）と齟齬状態になる上流側開口（５ｄ）とを備え、流量調整リング（３２）により内筒（１）の基端部を回転させて下流側開口（１ｇ）と上流側開口（５ｄ）の開口面積を変化させることより、大流量から小流量まで無段階で流量調整を行える構成としたことを特徴とする消火用ノズル。 The inner cylinder (1) that forms the water channel and the valve seat (2a) are formed on the inner peripheral surface of the front end portion, and are screwed to the outer peripheral surface of the inner cylinder (1) so as to be rotatable and movable forward and backward. A spindle provided with an outer cylinder (2) and a deflector (3) which is disposed inwardly at the tip of the inner cylinder (1) and can come into contact with the valve seat (2a) of the outer cylinder (2) at the tip. (4) and a cylindrical receiving metal fitting (5) which is fitted to the outer peripheral surface of the base end portion of the inner cylinder (1) so as to be relatively rotatable and connected to the distal end portion of the fire hose (A). In the fire extinguishing nozzle that can switch the water discharge state to water discharge stop or rod water discharge or spray water discharge by moving the outer cylinder (2) forward and backward, the fire extinguishing nozzle is a flow rate adjusting mechanism that can adjust the flow rate from a large flow rate to a small flow rate ( 6) and a male removably connected to a female metal fitting (7) provided at the base end of another fire extinguishing hose (A) And a metal fitting (8), wherein the flow rate adjusting mechanism (6) is provided rotatably receiving the outer peripheral surface of the fitting (5), the inner cylinder (1) is operatively connected to the proximal end of the inner cylinder (1 ) Of the flow rate adjustment ring (32) for rotating the base end portion, the downstream partition wall (1f) provided inside the base end portion of the inner cylinder (1), and at least one formed on the downstream partition wall (1f) An upstream partition (5c) provided on the inner side of the downstream opening (1g), the receiving metal fitting (5), and relatively rotating while sliding on the upstream side surface of the downstream partition (1f); and an upstream partition ( 5c), and is provided with a downstream opening (1g) and an upstream opening (5d) that is in a saddle state and matches the downstream opening (1g). The inner cylinder (1) is formed by a flow rate adjusting ring (32). By changing the opening area of the downstream opening (1g) and the upstream opening (5d) by rotating the base end of Extinguishing nozzle, characterized in that it has a structure that allows the flow regulating stepless from the large flow to a small flow rate. 前記スライドロック板（２３）は、外筒（２）の後退時及びスライドロック板（２３）の前進時にスライドロック板（２３）の先端部が外筒（２）の基端部外周面に設けた流量固定リング（１２）に係止され、外筒（２）の回転を阻止して放水状態を保持できる構成としたことを特徴とする請求項１に記載の消火用ノズル。 The slide lock plate (23) is provided with the distal end portion of the slide lock plate (23) on the outer peripheral surface of the base end portion of the outer cylinder (2) when the outer cylinder (2) is retracted and when the slide lock plate (23) is advanced. 2. The fire-extinguishing nozzle according to claim 1 , wherein the fire-extinguishing nozzle is engaged with the flow rate fixing ring (12) to prevent rotation of the outer cylinder (2) and maintain a water discharge state . 前記スライドロック板（２３）と受け金具（５）との間にスライドロック板（２３）を位置決めする位置決め機構（２５）を設け、当該位置決め機構（２５）は、スライドロック板（２３）に設けたボールプランジャー（２６）と、受け金具（５）の外周面に前後方向に一定の間隔で形成され、ボールプランジャー（２６）のボール（２６ｂ）が係止される複数の係止溝（５ｅ）とを備え、スライドロック板（２３）が流量調整ハンドル部（１ａ）及び流量固定リング（１２）にそれぞれ非係止状態と成る非係止位置と、スライドロック板（２３）が流量調整ハンドル部（１ａ）に係止される第１係止位置と、スライドロック板（２３）が流量調整ハンドル部（１ａ）及び流量固定リング（１２）の両方に係止される第２係止位置とを取り得るように構成されていることを特徴とする請求項５に記載の消火用ノズル。 A positioning mechanism (25) for positioning the slide lock plate (23) is provided between the slide lock plate (23) and the receiving metal fitting (5), and the positioning mechanism (25) is provided on the slide lock plate (23). A plurality of locking grooves (26) formed on the outer peripheral surface of the ball plunger (26) and the receiving metal fitting (5) at a predetermined interval in the front-rear direction and for locking the ball (26b) of the ball plunger (26). 5e), the slide lock plate (23) is in the non-locking position where the slide lock plate (23) is not locked in the flow rate adjusting handle portion (1a) and the flow rate fixing ring (12), and the slide lock plate (23) is in flow rate adjustment. A first locking position locked to the handle portion (1a) and a second locking position where the slide lock plate (23) is locked to both the flow rate adjusting handle portion (1a) and the flow rate fixing ring (12). And take Extinguishing nozzle according to claim 5, characterized in that it is configured. 前記受け金具（５）に、外筒（２）の前進を阻止して放水状態を保持できるフック機構（３１）を設け、当該フック機構（３１）は、外筒（２）の基端部外周面に形成した環状の段部（２ｆ）に係脱可能に係止されるフック板（３１ｂ）を備えており、フック板（３１ｂ）を外筒（２）の段部（２ｆ）に係止することにより外筒（２）の前進を阻止して放水状態を保持できる構成としたことを特徴とする請求項２に記載の消火用ノズル。 The catch (5) is provided with a hook mechanism (31) that can prevent the outer cylinder (2) from moving forward and maintain a water discharge state, and the hook mechanism (31) is provided at the outer periphery of the base end of the outer cylinder (2). A hook plate (31b) that is detachably locked to an annular step (2f) formed on the surface is provided, and the hook plate (31b) is locked to the step (2f) of the outer cylinder (2). The fire-extinguishing nozzle according to claim 2 , wherein the water discharge state can be maintained by preventing the forward movement of the outer cylinder (2) .
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JP6718168B2 (en) * 2016-06-07 2020-07-08 株式会社横井製作所 Plug-in type fitting
JP6937504B2 (en) * 2016-12-26 2021-09-22 株式会社立売堀製作所 Fire hose carrier
KR101831163B1 (en) * 2017-03-03 2018-02-26 송병석 Water nozzle for fire fighting hose
WO2018211573A1 (en) * 2017-05-16 2018-11-22 寧波瀛震机械部件有限公司 Fire-fighting coupling
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KR101922816B1 (en) * 2017-11-09 2018-11-27 창원시 A Water injection instrument with fire hose connection function
KR101960682B1 (en) * 2018-03-27 2019-03-21 (주)세명이엔지 Connection structure of fire hose for fire fighting
KR102111086B1 (en) * 2019-01-11 2020-05-20 주식회사 서우이엔지 Direct handline nozzle
JP2021038763A (en) * 2019-08-30 2021-03-11 一般社団法人 日本消防放水器具工業会 Hose joint with built-in nozzle

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