EP1106212B1 - Feuerlöschdüse - Google Patents

Feuerlöschdüse Download PDF

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Publication number
EP1106212B1
EP1106212B1 EP00403418A EP00403418A EP1106212B1 EP 1106212 B1 EP1106212 B1 EP 1106212B1 EP 00403418 A EP00403418 A EP 00403418A EP 00403418 A EP00403418 A EP 00403418A EP 1106212 B1 EP1106212 B1 EP 1106212B1
Authority
EP
European Patent Office
Prior art keywords
piston
ring
valve
spring
fire hose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00403418A
Other languages
English (en)
French (fr)
Other versions
EP1106212A1 (de
Inventor
Louis Lanteri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
POK
Original Assignee
POK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9553269&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1106212(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by POK filed Critical POK
Priority to DE60021245T priority Critical patent/DE60021245T2/de
Publication of EP1106212A1 publication Critical patent/EP1106212A1/de
Application granted granted Critical
Publication of EP1106212B1 publication Critical patent/EP1106212B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa

Definitions

  • the present invention relates to a fire hose.
  • the present invention therefore aims to overcome the disadvantages of the prior art by proposing an easily maneuverable fire hose and can bulky.
  • a fire hose comprises a body (101) of generally cylindrical shape, a first end includes a coupling (131) for connecting a pipe water supply.
  • the body also includes a handle (139) of grip type pistol grip and a handle (108) maneuver to actuate the direction of opening or closing of the axis (104) of the spigot of the lance.
  • the second end of the body (101) includes a sleeve (110) connected to the body (101) by a thread and comprises a diffusion head.
  • This diffusion head comprises a turbine (125) mounted with a cone (126) of diffusion on a fixed nozzle (118) in abutment with respect to the sleeve (110).
  • the assembly is carried out by means of a ring (123) head sliding on the nozzle (118).
  • This turbine (125) allows, depending on the position of the turbine assembly (125), head ring (123), on the sleeve (110), produce a different stream of water.
  • the nozzle (118) is substantially shaped cylindrical and comprises an axial bore (1180) allowing the fluid to cross the spear.
  • a sheath (124) for maneuvering and protection is secured, for example in force, on the ring (123) head and allows a operator to rotate this ring (123) on the piston.
  • the movement of rotation of the sliding ring (123) is guided by at least one ball (122) integral with the ring (123) which slides in a helical ramp (1220). So, by screwing or unscrewing the ring (123), a diffusion shape is obtained different, for example a solid jet or a diffusion cone by modifying the position of the ring (123) head relative to the nozzle (118).
  • the diffusion head also comprises a valve (129), of shape disc, mounted in the nozzle (118) and partially closing the outlet of the fluid, to form with the turbine (125) and the diffusion cone (126) the shape of desired jet, depending on the position of the ring (123) head. So, the fluid is guided by the inner part of the valve (129) against the nozzle (118), then through the turbine (125), before being diffused out of the spear.
  • the pressure regulation is carried out by varying the space between the valve (129) movable along the axis of the lance and the nozzle (118) depending on the fluid flow. The higher the flow, the more this space must be important to decrease the pressure inside the body of the spear.
  • valve (129) is secured to an axis (128) fixed on a seat (111) on which rests on a first end of a helical spring (114) regulation.
  • This spring (114) is mounted inside the body (101) and more particularly within the piston (118). The second end of the spring (114) is in support against the nozzle (118).
  • the regulating spring (114) exerts a restoring force on the valve (129) which tends to decrease the space between the valve (129) and the nozzle (118).
  • a fluid crosses the spear it comes to exert pressure on the whole surface of the part interior of the valve (129).
  • control spring is under the stress of a static pressure, due to the presence of the fluid, and a dynamic pressure due to the displacement of the fluid which is exerted on the whole cross sectional area (D2) of the valve (129).
  • the regulation is then obtained by the restoring force of the spring (114) that the fluid must overcome for move the valve (129) away from the piston (118).
  • the stiffness of the spring (114) is adapted to overcome the total pressure exerted on the entire surface of the section of the valve (129).
  • the higher the flow of fluid is important plus the pressure force exerted by the fluid on the valve is important and the latter tends to move away from the piston to decrease the pressure increase on the valve (129).
  • the regulating principle is that the section of passage of the liquid delimited by the valve and the nozzle is no longer constant but instead variable automatically depending on the hydraulic forces combined with the effort variable of a control spring.
  • This regulating spring adjusts automatically the section of the nozzle so that, at any moment, the pressure remains constant inside the lance regardless of fluid flow.
  • the lance comprises a body (1) provided with a connection (50) for connecting a supply line.
  • the body (1) comprises a handle (21) gripper pistol and a handle (8) of Maneuvering the valve (2) of the lance.
  • the diffusion head (35) comprises substantially the same elements as the lance of the prior art, in particular the diffusion head comprises a turbine (38) allowing, according to its position on a piston (32), to obtain a different jet of fluid.
  • This turbine (38) is mounted with a diffusion cone (39) on the piston (32) mounted in the sleeve (11), himself screwed on the second end of the body (1).
  • the cone and the turbine are mounted on the piston (32) via a sliding ring (35) on the piston (32).
  • the piston (32) also comprises an axial bore (320) in which is housed the valve (44).
  • the fundamental difference of the spear, according to the invention resides in the regulation mechanism.
  • the valve (44) of the lance according to the invention is fixed relative to the sleeve (11) and therefore to the body (1) and the piston (32) is slidably mounted in the sleeve (11).
  • the regulation of pressure is obtained by the movement of the piston (32) when the resulting force the total pressure exerted on the surface of the piston located opposite the valve (42) is sufficient to overcome the resistance of return means tending to maintain the piston (32) against the valve (44).
  • the passage section between the piston (32) and the valve (44) will adjust so that the pressure inside the launches be constant.
  • the flow does not vary not.
  • the piston (32) is stationary.
  • the spring must oppose only the force resulting from the pressure exerted on the piston (32) to move it, this force being much less than the force resulting from the pressure exerted on the surface of the valve (129, Fig. 2) of the prior art.
  • the surface (D1) on which exerts the pressure to move the piston (32) is reduced relative to the inner surface of the valve (129, Fig. 2) of the prior art.
  • This surface (D1) actually corresponds to a ring of inner diameter corresponding to diameter of the axial bore (320) of the piston (32) and outer diameter corresponds to the diameter of the valve (44).
  • the total pressure exerted on the piston (32) substantially corresponding to the dynamic pressure of the fluid. Indeed, at the exit of the valve (44) considering that the fluid is almost in the open air, it is proven by the experiments that the pressure in all point of the fluid is substantially equal to the atmospheric pressure.
  • the end of the piston (32) vis-à-vis the valve (44) is conical and the direction of the fluid flow makes a small angle, less than 90 ° with the surface conical end of the piston (32), which also decreases the force resulting from the dynamic pressure.
  • the return means (31) providing regulation by controlling the displacement of the piston exerts pressure reaction forces much lower than the force of reaction exerted by the spring (114) for regulating the lance of the art prior.
  • the return means may be of lighter design, which decreases the volume of the spear and therefore its weight, which improves its maneuverability.
  • valve (44) is fixedly mounted on the sleeve (11) fixed on the second end of the body (1).
  • the valve is mounted on an axis (42) by means of a nut (45).
  • the axis (42) valve is fixed on a warhead (43) integral with a cross (26) integral with the sleeve (11).
  • the seal between the spider and the body (1) is ensured by a O-ring (27).
  • return means comprise a coil spring (31), called a regulating spring, mounted in the axial bore (320) of the piston (32), the axis of the spring (31) of control being substantially coincident with the axis of the bore (320) axial.
  • a first end of the spring (31) is then secured to the piston (32).
  • the second end of the regulating spring (31) is fixed to the body (1) or to a fixed element relative to the body (1).
  • the second end of the regulation spring (31) is secured to a purge ring (30) secured in translation with the sleeve (11), for example by means of at least one ball (29) mounted in a ramp (290) of the ring (30).
  • the ring (30) of purge is housed inside the axial bore (320) of the piston (32) and is extended on one end by a sheath (300) enclosing the spring (14) in a cavity (320) thus formed by the piston (32) and the purge ring (30).
  • the seal can be provided by a seal Ring (32) between the piston (32) and the sleeve (300), the spring (31) of regulation is then isolated from the fluid flowing in the lance.
  • the diffusion head can be displaced by means of a ring (36) secured by example by screwing on the ring (35) sliding.
  • This ring (36) of guide allows an operator to slide the sliding ring (35) on the piston (32).
  • the guide ring (35) comprises a ball (291) sliding in a helical ramp (2910) in the piston (32). So, by screwing or by unscrewing the ring (35), sliding the ball (291) in the ramp (2910) also causes the sliding of the guide ring (35) on the piston (32) and therefore the sliding of the sliding ring (35).
  • the purge ring (30) also moves the piston (32) manually when necessary, for example when necessary to empty the pipe connected to the lance when cutting the power supply fluid. In this case, the flow of fluid is not sufficient and the piston (32) is then in contact with the valve (44), which prevents the fluid from flow is. It is therefore desirable to be able to manually move the piston (32) to evacuate the fluid.
  • the purge ring (30) is secured in rotation with the piston (32), for example by means of at least one anti-rotation screw (34).
  • the purge ring is integral in translation of the sleeve (11) via at least one ball (29). This ball is able to slide in a helical ramp (290) in the purge ring (30).
  • the purge operation is performed as follows. At first, the guide ring (36) is manipulated to bring the ball (291) binding the ring Piston guide (32) at the ramp stop (2910). In this situation, this ball (291) can no longer slide on the piston (32). The continuation of the rotation of the guide ring (36) therefore causes a rotation of the piston (32) and solidarily a rotation of the purge ring (30). The rotation of the purge ring (30) causes the sliding of the ball (29) binding the ring (30) purging the sleeve (11). The sliding of the ball (29) takes place in the helical ramp (290) of the sleeve (11). So, following the ramp (290) helically, the ball (29) slides the purge ring (30) backwards and consequently, causes the piston (32) which is integral in translation the purge ring (30).
  • means (28) for recall are provided so that the piston (32) is returned to its working position, that is to say for the piston to regulate the pressure.
  • These means of return comprises a coil spring (28) housed in the axial bore (321) piston (32) and whose axis coincides with the axis of the bore (320).
  • a first end of the spring (28) is integral with the purge ring (30) and the second end is integral with the body (1) or a fixed part relative to the body (1).
  • the spring (28) is housed in a sealed cavity (280) formed by the sleeve (11), the ring (30) of purge and the spider (26) which is then extended by a sheath (260).
  • Sealing of the cavity (280) of the spring (28) is provided by seals (27) rings placed between the purge ring (30) and the spider sleeve (260) (26) and between the spider (26) and the sleeve (11) of the lance.
  • the spring (28) is compressed.
  • the spring (28) expands exerting sufficient force on the purge ring (30) to cause the sliding of the ball (29) linking the guide ring (30) to the sleeve (11) in its ramp and consequently causes the ring (30) to slide purge and piston (32) to the initial position.
  • the spring (28) also avoids any inadvertent movement of the purge ring (30).
  • the fire hose according to the invention is characterized by the fact that the valve (44) is fixedly mounted on the body (1), the piston (32) is slidably mounted in the body (1), the movement of the piston (32) being caused on the one hand by the force resulting from the total pressure of the fluid exerted on the surface (D1) of the piston opposite the valve (44) and, on the other hand, by the force exerted by means (31) of recall tending to neutralize the force resulting from the total fluid pressure.
  • the return means are mounted in a sealed cavity of the body (1) formed in the axial bore (320) of the piston.
  • the means (31) for recalling comprise a helical spring whose axis is parallel to the axis of the piston (32) and whose first end is integral with the piston (32) and whose second end is integral with a part or a fixed element relative to the body (1).
  • the lance comprises means for purge mounted in a sealed cavity of the body (1).
  • the purge means comprise a guide ring (36) mounted on the outer surface of the piston (32) and a ring (30) for purge fixed relative to the piston (32) and sliding in the body (1), the sliding of the purge ring (30) being caused by the rotating the guide ring (36) and causing the piston to slide (32) to increase the distance between the valve (44) and the piston (32).
  • the purge means comprise means (28) for biasing the purge ring (30) to return the piston (32) in the working position, when the guide ring (36) is no longer requested in rotation.
  • the recall means comprise a helical spring (28) whose axis is parallel to the longitudinal axis of the piston (32), a first end of the spring is attached to the purge ring (30), and the second end of the spring is fixed on the body (1) or on an element fixed relative to the body (1).

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Safety Valves (AREA)
  • Nozzles (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Claims (7)

  1. Feuerlöschduse mit
       einem Körper 1, der eine Druckregulierungsvorrichtung enthält, die eine Klappe (44) enthält, die teilweise eine axiale Bohrung (320) eines Kolbens (32) verschließt, der in dem Körper (1) der Düse angebracht ist,
       dadurch gekennzeichnet, dass
       die Klappe (44) fest an dem Körper angebracht ist,
       der Kolben (32) gleitend in dem Körper angebracht ist,
       die Bewegung des Kolbens (32) einerseits durch die Kraft bewirkt wird, die sich aus dem Gesamtdruck des Fluids ergibt, der auf die der Klappe (44) gegenüberliegenden Oberfläche (D1) des Kolbens (32) ausgeübt wird, und andererseits durch die Kraft, die durch Rückstellmittel (31) ausgeübt wird, die darauf abzielen, die sich aus dem Gesamtdruck des Fluids ergebende Kraft zu neutralisieren.
  2. Feuerlöschdüse nach Anspruch 1, dadurch gekennzeichnet, dass die Rückstellmittel (31) in einer dichten Aushöhlung des Körpers (1) angebracht sind, die in der axialen Bohrung (320) des Kolbens ausgebildet ist.
  3. Feuerlöschdüse nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass
       die Rückstellmittel (31) eine Schraubenfeder enthalten, deren Achse parallel zu der Achse des Kolbens (32) ist und
       bei der ein erstes Ende mit dem Kolben (32) verbunden ist und
       bei der ein zweites Ende mit einem Teil oder einem Element verbunden ist, das relativ zu dem Körper (1) fest ist.
  4. Feuerlöschdüse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sie Entleerungsmittel enthält, die einer dichten Aushöhlung des Körpers (1) angebracht sind
  5. Feuerlöschdüse nach Anspruch 4, dadurch gekennzeichnet, dass die Entleerungsmittel enthalten:
    eine Führungshülse (36), die auf der Außenfläche des Kolbens (32) angebracht ist, und
    eine Entleerungshülse (30), die relativ zu dem Kolben (32) fest ist und in dem Körper (1) gleitet,
       wobei das Gleiten der Entleerungshülse (30) durch Drehen der Führungshülse (36) bewirkt wird und das Gleiten des Kolbens (32) bewirkt, so dass der Abstand zwischen der Klappe (44) und dem Kolben (32) vergrößert wird.
  6. Feuerlöschdüse nach Anspruch 5, dadurch gekennzeichnet, dass die Entleerungsmittel Rückstellmittel (28) enthalten, die die Entleerungshülse (30) beanspruchen, um den Kolben (32) in eine Arbeitsstellung zu bringen, wenn die Führungshülse (36) nicht mehr in Drehung beansprucht ist.
  7. Feuerlöschdüse nach Anspruch 6, dadurch gekennzeichnet, dass
       die Rückstellmittel (28) der Entleerungsmittel eine Schraubenfeder (28) enthalten, deren Achse parallel zu der Längsachse des Kolbens (32) ist,
       wobei ein erstes Ende der Feder mit der Entleerungshülse (30) verbunden ist und
       ein zweites Ende der Feder mit dem Körper (1) oder einem Element verbunden ist, das relativ zu dem Körper (1) fest ist.
EP00403418A 1999-12-07 2000-12-06 Feuerlöschdüse Expired - Lifetime EP1106212B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE60021245T DE60021245T2 (de) 1999-12-07 2000-12-06 Feuerlöschdüse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9915789 1999-12-07
FR9915789A FR2801799B1 (fr) 1999-12-07 1999-12-07 Lance a incendie

Publications (2)

Publication Number Publication Date
EP1106212A1 EP1106212A1 (de) 2001-06-13
EP1106212B1 true EP1106212B1 (de) 2005-07-13

Family

ID=9553269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00403418A Expired - Lifetime EP1106212B1 (de) 1999-12-07 2000-12-06 Feuerlöschdüse

Country Status (4)

Country Link
US (2) US6598810B2 (de)
EP (1) EP1106212B1 (de)
DE (1) DE60021245T2 (de)
FR (1) FR2801799B1 (de)

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US7097120B2 (en) * 2001-11-29 2006-08-29 Watershield Llc Hose nozzle apparatus and method
US20050194479A1 (en) * 2004-02-03 2005-09-08 Curtis Harold D. Spray nozzle
FR2871389B1 (fr) * 2004-06-11 2006-09-22 St Mihiel Sas Soc Par Actions Lance d'incendie a debit de fluide constant
US7261248B2 (en) * 2004-08-09 2007-08-28 Curtis Harold D Spray nozzle
US7124965B1 (en) * 2004-09-27 2006-10-24 Shin Tai Spurt Water Of The Garden Tools Co., Ltd. Spraying gun
US7258285B1 (en) * 2005-01-14 2007-08-21 Elkhart Brass Manufacturing Company, Inc. Adjustable smooth bore nozzle
US9004376B2 (en) 2007-07-12 2015-04-14 Watershield Llc Fluid control device and method for projecting a fluid
US9919171B2 (en) 2007-07-12 2018-03-20 Watershield Llc Fluid control device and method for projecting a fluid
WO2009076489A2 (en) * 2007-12-12 2009-06-18 Elkhart Brass Manufacturing Company, Inc. Smooth bore nozzle with adjustable bore
US20100038900A1 (en) * 2008-08-14 2010-02-18 Elkhart Brass Manufacturing Company, Inc. Swivel connection for a firefighting device
GB2545983B (en) * 2014-01-30 2018-04-04 Akron Brass Co Nozzle with radial spray jet capability
US10265559B1 (en) * 2014-03-18 2019-04-23 Lonnie R Downs Fire-hose nozzle
US11141744B2 (en) 2016-04-19 2021-10-12 Harold D. Curtis Revocable Trust Spray nozzle with floating turbine
CN106869514B (zh) * 2017-04-09 2022-04-22 南京林业大学 建筑物附属降霾喷雾和清洗、消防射流装置
GB201710901D0 (en) * 2017-07-06 2017-08-23 Limited, Improved fluid discharge nozzle
CN107715354A (zh) * 2017-11-21 2018-02-23 江西荣和特种消防设备制造有限公司 移动式消防炮自动调压装置
DE102018119424A1 (de) * 2018-08-09 2020-02-13 Oase Gmbh Fontänenaufsatz für Wasserspiele mit einer verstellbaren Düse
FR3085855B1 (fr) 2018-09-13 2020-09-18 R Pons Lance a incendie comportant deux rangees de dents intercalees sur la face avant de sa bague de tete
US11779938B2 (en) 2019-07-30 2023-10-10 Hen Nozzles, Inc. High-efficiency smooth bore nozzles
WO2022119601A1 (en) * 2020-12-05 2022-06-09 HEN Nozzles Inc. High-efficiency smooth bore nozzles
US12103018B2 (en) 2019-07-30 2024-10-01 HEN Nozzles Inc. High-efficiency smooth bore nozzles
DE102021107241A1 (de) * 2021-03-23 2022-09-29 PUTZ INNOVA GmbH Löschvorrichtung und Verfahren zum Betreiben derselben

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US6007001A (en) * 1997-12-17 1999-12-28 Amhi Corporation Autofog nozzle

Also Published As

Publication number Publication date
US20010020650A1 (en) 2001-09-13
DE60021245D1 (de) 2005-08-18
US6598810B2 (en) 2003-07-29
DE60021245T2 (de) 2012-04-26
EP1106212A1 (de) 2001-06-13
FR2801799B1 (fr) 2002-01-04
FR2801799A1 (fr) 2001-06-08

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