EP1106212A1 - Lance à incendie - Google Patents
Lance à incendie Download PDFInfo
- Publication number
- EP1106212A1 EP1106212A1 EP00403418A EP00403418A EP1106212A1 EP 1106212 A1 EP1106212 A1 EP 1106212A1 EP 00403418 A EP00403418 A EP 00403418A EP 00403418 A EP00403418 A EP 00403418A EP 1106212 A1 EP1106212 A1 EP 1106212A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- ring
- valve
- fire hose
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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 object of the present invention is therefore to overcome the drawbacks of the prior art by proposing an easily maneuverable fire hose and can be bulky.
- a fire hose comprises a body (101) of generally cylindrical shape, a first of which end includes a fitting (131) for connecting a pipe water supply.
- the body also includes a handle (139) of pistol grip type and an operating handle (108) used to activate the opening or closing direction of the axis (104) of the lance valve.
- the second end of the body (1) includes a sleeve (110) connected to the body (101) by a thread and includes a diffusion head.
- This diffusion head comprises a turbine (125) mounted with a cone (126) diffusion on a nozzle (118) fixed in front stop relative to the sleeve (110).
- the assembly is carried out, by means of a ring (123) of 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), of produce a different stream of water.
- the nozzle (118) is substantially shaped cylindrical and includes an axial bore (1180) allowing the fluid to cross the spear.
- An operating and protective sheath (124) is secured, for example by force, on the head ring (123) 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 form of diffusion is obtained different, for example a solid jet or a diffusion cone by modifying the position of the head ring (123) relative to the nozzle (118).
- the diffusion head also includes a valve (129), in the form disc, mounted in the nozzle (118) and partially closing the outlet of the fluid, so as to form with the turbine (125) and the cone (126) of diffusion the form of desired jet, depending on the position of the head ring (123). 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 towards the outside of the launch.
- 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 lance.
- the valve (129) is integral with an axis (128) fixed on a seat (111) on which bears on a first end of a helical spring (114), said to be regulation.
- This spring (114) is mounted inside the body (101) and more particularly inside the piston (118).
- the second end of the spring (114) of regulation is in abutment against the nozzle (118).
- the regulation 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 lance, it exerts pressure on the entire surface of the part inside of the valve (129).
- the regulating spring is under the stress of a static pressure, due to the presence of the fluid, and of a dynamic pressure due to the displacement of the fluid which is exerted over the entire surface of the cross section (D2) of the valve (129).
- the regulation is then obtained by the return force of the spring (114) which the fluid must overcome to move aside the valve (129) from the piston (118).
- the stiffness of the spring (114) is adapted to overcome the total pressure exerted on the entire surface of the valve section (129). As explained above, the higher the flow of fluid is important plus the pressure force exerted by the fluid on the valve is important and the more the latter tends to move away from the piston to decrease the increase in pressure on the valve (129).
- the regulating spring (114) Since this must face a pressure force of the fluid exerted on the whole of the surface of the valve section (D2).
- the stiffness of the spring also increases its weight and size and by therefore the volume of the lance.
- the regulating spring (114) is housed in the fluid circulation duct, so it is constantly submerged and therefore must undergo specific treatment, which increases the total cost of the launch.
- the principle of regulation is that the section of passage of the liquid delimited by the valve and the nozzle is no longer constant but on the contrary variable automatically as a function of the hydraulic forces combined with the force variable of a regulation spring.
- This regulation spring adjusts the nozzle section automatically so that at any time the pressure remains constant inside the lance regardless of the fluid flow.
- the lance according to the invention comprises a body (1) provided with a connector (50) for connecting a supply line.
- the body (1) includes a handle (21) and a grip (8) operation of the lance's tap (2).
- 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, depending on 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), itself screwed onto the second end of the body (1).
- the cone and the turbine are mounted on the piston (32) by means of a sliding ring (35) on the piston (32).
- the piston (32) also includes an axial bore (320) in which is housed the valve (44).
- 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). So regulating the pressure is obtained by movement of the piston (32) when the resulting force of 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 hold the piston (32) against the valve (44). So, by movement of the piston (32) relative to the fixed valve (42), the passage section between the piston (32) and the valve (44) will adjust so that the pressure inside the be constant. When the flow is stable, the passage section does not vary not. Consequently, the piston (32) is stationary.
- the spring should only oppose 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 the pressure exerted to move the piston (32) is reduced compared to the inner surface of the valve (129, fig. 2) of the prior art.
- This surface (D1) actually corresponds to an inner diameter ring corresponding to the diameter of axial bore (320) of piston (32) and outside diameter corresponds to the diameter of the valve (44).
- the total pressure exerted on the piston (32) corresponding substantially to the dynamic pressure of the fluid. Indeed, at the outlet of the valve (44) taking into account that the fluid is almost in the open air, it is proven by experiments that the pressure in all point of the fluid is substantially equal to atmospheric pressure.
- the end of the piston (32) facing the valve (44) is conical and the direction of the fluid flow makes a small angle, less than 90 ° with the surface tapered end of the piston (32), which also decreases the force resulting from dynamic pressure.
- the return means (31) carrying out the regulation by controlling the movement of the piston exerts pressure reaction forces much less than the force of reaction exerted by the spring (114) regulating the lance of art prior.
- the return means can be of a lighter design, which decreases the volume of the lance and therefore its weight, which improves its maneuverability.
- the 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) of the valve is fixed on an ogive (43) secured to a spider (26) secured to the sleeve (11).
- the seal between the spider and the body (1) is ensured by a O-ring (27).
- the return means comprise a helical spring (31), called a regulation spring, mounted in the axial bore (320) of the piston (32), the spring axis (31) of regulation being substantially coincident with the axis of the axial bore (320).
- 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 element fixed 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) which encloses the spring (14) regulating in a cavity (320) consequently formed by the piston (32) and the purge ring (30).
- the seal can be ensured by a seal (27) toric placed between the piston (32) and the sleeve (300), the spring (31) of regulation is then isolated from the fluid circulating in the lance.
- the diffusion head can be moved by means of an integral guide ring (36), by example by screwing, on the sliding ring (35).
- This ring (36) of guidance allows an operator to slide the sliding ring (35) over the piston (32).
- the guide ring (35) comprises a ball (291) sliding in a helical ramp (2910) formed in the piston (32). So by screwing or by unscrewing the ring (35), the sliding of the ball (291) in the ramp (2910) also causes the guide ring (35) to slide on the piston (32) and therefore the sliding of the sliding ring (35).
- the purge ring (30) also allows the piston (32) to be moved. manually, when necessary, for example when necessary to empty the line connected to the lance when the power supply is cut off fluid. In this case, the fluid flow is not sufficient and the piston (32) is then in contact with the valve (44), which prevents the fluid from to flow. It is therefore desirable to be able to manually reverse the piston (32) to drain 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 with the sleeve (11) by means of 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 carried out as follows. At first, the guide ring (36) is maneuvered to bring the ball (291) connecting the ring (36) for guiding the piston (32) at the ramp stop (2910). In this situation, this ball (291) can no longer slide on the piston (32). The pursuit of rotation of the guide ring (36) therefore causes rotation of the piston (32) and integrally a rotation of the purge ring (30). The rotation of the purge ring (30) causes the sliding of the ball (29) connecting the ring (30) purge to the sleeve (11). The ball (29) slides in the helical ramp (290) of the sleeve (11). So, following the ramp (290) helical, the ball (29) slides the bleed ring (30) backwards and Consequently, causes the piston (32) to retreat, which is integral in translation with the purge ring (30).
- return means (28) are provided for the piston (32) to be returned to its working position, that is to say so that the piston regulates the pressure.
- These means of reminder include a helical spring (28) housed in the axial bore (321) piston (32) and whose axis is coincident with the axis of the bore (320).
- a first end of the spring (28) is integral with the bleed ring (30) and the second end is integral with the body (1) or with 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 sleeve (260).
- the seal of the spring cavity (280) (28) is ensured by seals (27) O-rings placed between the purge ring (30) and the crosspiece sleeve (260) (26) and between the spider (26) and the sleeve (11) of the lance.
- the spring (28) is compressed.
- the spring (28) relaxes exerting sufficient force on the bleed ring (30) to cause the sliding of the ball (29) connecting the guide ring (30) to the sleeve (11) in its ramp and therefore causes the sliding of the ring (30) of bleed and piston (32) to the initial position.
- the spring (28) also avoids any untimely movement of the purge ring (30).
- the fire hose according to the invention is characterized in 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 located opposite the valve (44) and on the other hand, by the force exerted by return means (31) 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 return means (31) include a coil 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 body cavity (1).
- the purging means comprise a guide ring (36) mounted on the outer surface of the piston (32) and a purge ring (30) fixed relative to the piston (32) and sliding in the body (1), the sliding of the purge ring (30) being caused by the rotation of the guide ring (36) causing the piston to slide (32) so as to increase the distance between the valve (44) and the piston (32).
- the purging means comprise return means (28) urging the purge ring (30) to bring the piston (32) in working position, when the guide ring (36) is no longer stressed in rotation.
- the return 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 fixed on the bleed ring (30), and the second end of the spring is fixed to the body (1) or to 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)
Abstract
Description
- la figure 1 représente une vue en coupe longitudinale d'une lance à incendie selon l'invention,
- la figure 2 représente une vue en coupe longitudinale d'une lance à incendie selon l'art antérieur.
Claims (7)
- Lance à incendie comprenant un corps (1) comportant un dispositif de régulation de pression comprenant un clapet (44) obturant partiellement un perçage (320) axial d'un piston (32) monté dans le corps (1) de la lance, caractérisée en ce que le clapet (44) est monté fixe sur le corps (1), le piston (32) est monté coulissant dans le corps (1), le mouvement du piston (32) étant provoqué, d'une part, par la force résultant de la pression totale du fluide s'exerçant sur la surface (D1) du piston situé en vis-à-vis du clapet (44) et d'autre part, par la force exercée par des moyens (31) de rappel tendant à neutraliser la force résultant de la pression totale de fluide.
- Lance à incendie selon la revendication 1, caractérisée en ce que les moyens de rappel sont montés dans une cavité étanche du corps (1) formée dans le perçage (320) axial du piston.
- Lance à incendie selon la revendication 1 ou 2, caractérisée en ce que les moyens (31) de rappel comprennent un ressort hélicoïdal dont l'axe est parallèle à l'axe du piston (32) et dont une première extrémité est solidaire du piston (32) et dont la deuxième extrémité est solidaire d'une partie ou d'un élément fixe par rapport au corps (1).
- Lance à incendie selon la revendication 1 à 3, caractérisée en ce qu'elle comprend des moyens de purge montés dans une cavité étanche du corps (1).
- Lance à incendie selon la revendication 4, caractérisée en ce que les moyens de purge comprennent une bague (36) de guidage montée sur la surface extérieure du piston (32) et une bague (30) de purge fixe par rapport au piston (32) et coulissante dans le corps (1), le coulissement de la bague (30) de purge étant provoqué par la rotation de la bague (36) de guidage et provoquant le coulissement du piston (32), de façon à augmenter la distance entre le clapet (44) et le piston (32).
- Lance à incendie selon la revendication 5, caractérisée en ce que les moyens de purge comprennent des moyens (28) de rappel sollicitant la bague (30) de purge pour ramener le piston (32) en position de travail, lorsque la bague (36) de guidage n'est plus sollicitée en rotation.
- Lance à incendie selon la revendication 6, caractérisée en ce que les moyens de rappel comprennent un ressort (28) hélicoïdal dont l'axe est parallèle à l'axe longitudinal du piston (32), une première extrémité du ressort est fixée sur la bague (30) de purge et la deuxième extrémité du ressort est fixée sur le corps (1) ou sur un élément fixe par rapport au corps (1).
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 true EP1106212A1 (fr) | 2001-06-13 |
EP1106212B1 EP1106212B1 (fr) | 2005-07-13 |
Family
ID=9553269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00403418A Expired - Lifetime EP1106212B1 (fr) | 1999-12-07 | 2000-12-06 | Lance à incendie |
Country Status (4)
Country | Link |
---|---|
US (2) | US6598810B2 (fr) |
EP (1) | EP1106212B1 (fr) |
DE (1) | DE60021245T2 (fr) |
FR (1) | FR2801799B1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022119601A1 (fr) * | 2020-12-05 | 2022-06-09 | HEN Nozzles Inc. | Buse à intérieur lisse à haute efficacité |
WO2022200153A1 (fr) * | 2021-03-23 | 2022-09-29 | PUTZ INNOVA GmbH | Dispositif d'extinction et procédé de fonctionnement du dispositif d'extinction |
US11779938B2 (en) | 2019-07-30 | 2023-10-10 | Hen Nozzles, Inc. | High-efficiency smooth bore nozzles |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
EP2242544A2 (fr) | 2007-12-12 | 2010-10-27 | Elkhart Brass Manufacturing Company, Inc. | Lance à paroi interne lisse avec paroi interne ajustable |
US20100038900A1 (en) * | 2008-08-14 | 2010-02-18 | Elkhart Brass Manufacturing Company, Inc. | Swivel connection for a firefighting device |
GB2545984B (en) * | 2014-01-30 | 2018-10-10 | 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 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3539112A (en) * | 1969-04-16 | 1970-11-10 | Elkhart Brass Mfg Co | Fire hose nozzle with automatic volume adjustment |
WO1995017926A1 (fr) * | 1993-12-30 | 1995-07-06 | Norfass A.S | Busette |
GB2297930A (en) * | 1995-02-20 | 1996-08-21 | Sword | Jet/spray nozzles |
WO1999030828A1 (fr) * | 1997-12-17 | 1999-06-24 | Amhi Corporation | Lance a jet brouillard automatique |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2991016A (en) * | 1960-02-04 | 1961-07-04 | Akron Brass Mfg Co Inc | Nozzle |
US3387791A (en) * | 1965-10-14 | 1968-06-11 | Akron Brass Co | Nozzle |
US3863844A (en) * | 1973-05-02 | 1975-02-04 | Fire Task Force Innovations In | Automatic fire nozzle with automatic control of pressure and internal turbulence combined with manual control of variable flow and shape of stream produced |
US3904125A (en) * | 1974-03-14 | 1975-09-09 | Premier Ind Corp | Constant pressure nozzle discharge mechanism |
US3893624A (en) * | 1974-09-23 | 1975-07-08 | Elkhart Brass Mfg Co | Automatic volume adjusting fire hose nozzle with flushing mechanism |
US4172559A (en) * | 1977-10-27 | 1979-10-30 | Premier Industrial Corporation | Spring-loaded constant pressure nozzle with secondary modulating means |
US4252278A (en) * | 1979-05-11 | 1981-02-24 | Mcmillan Clyde H | Fire hose nozzle |
US5312048A (en) * | 1993-03-25 | 1994-05-17 | Task Force Tips, Inc. | Regulating nozzle with adjustable effective area baffle |
-
1999
- 1999-12-07 FR FR9915789A patent/FR2801799B1/fr not_active Expired - Fee Related
-
2000
- 2000-12-06 DE DE60021245T patent/DE60021245T2/de not_active Expired - Lifetime
- 2000-12-06 EP EP00403418A patent/EP1106212B1/fr not_active Expired - Lifetime
- 2000-12-07 US US09/747,526 patent/US6598810B2/en not_active Expired - Fee Related
-
2001
- 2001-04-02 US US09/747,526 patent/US20010020650A1/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3539112A (en) * | 1969-04-16 | 1970-11-10 | Elkhart Brass Mfg Co | Fire hose nozzle with automatic volume adjustment |
WO1995017926A1 (fr) * | 1993-12-30 | 1995-07-06 | Norfass A.S | Busette |
GB2297930A (en) * | 1995-02-20 | 1996-08-21 | Sword | Jet/spray nozzles |
WO1999030828A1 (fr) * | 1997-12-17 | 1999-06-24 | Amhi Corporation | Lance a jet brouillard automatique |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11779938B2 (en) | 2019-07-30 | 2023-10-10 | Hen Nozzles, Inc. | High-efficiency smooth bore nozzles |
WO2022119601A1 (fr) * | 2020-12-05 | 2022-06-09 | HEN Nozzles Inc. | Buse à intérieur lisse à haute efficacité |
WO2022200153A1 (fr) * | 2021-03-23 | 2022-09-29 | PUTZ INNOVA GmbH | Dispositif d'extinction et procédé de fonctionnement du dispositif d'extinction |
Also Published As
Publication number | Publication date |
---|---|
US6598810B2 (en) | 2003-07-29 |
DE60021245T2 (de) | 2012-04-26 |
US20010020650A1 (en) | 2001-09-13 |
FR2801799B1 (fr) | 2002-01-04 |
FR2801799A1 (fr) | 2001-06-08 |
DE60021245D1 (de) | 2005-08-18 |
EP1106212B1 (fr) | 2005-07-13 |
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