EP0078792B1 - Colonne d'incendie - Google Patents

Colonne d'incendie Download PDF

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Publication number
EP0078792B1
EP0078792B1 EP19820890162 EP82890162A EP0078792B1 EP 0078792 B1 EP0078792 B1 EP 0078792B1 EP 19820890162 EP19820890162 EP 19820890162 EP 82890162 A EP82890162 A EP 82890162A EP 0078792 B1 EP0078792 B1 EP 0078792B1
Authority
EP
European Patent Office
Prior art keywords
mandrel
valve
hydrant
pipe
closing member
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
Application number
EP19820890162
Other languages
German (de)
English (en)
Other versions
EP0078792A1 (fr
Inventor
Hermann Mutschlechner
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.)
Tiroler Rohren und Metallwerke AG
Original Assignee
Tiroler Rohren und Metallwerke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tiroler Rohren und Metallwerke AG filed Critical Tiroler Rohren und Metallwerke AG
Publication of EP0078792A1 publication Critical patent/EP0078792A1/fr
Application granted granted Critical
Publication of EP0078792B1 publication Critical patent/EP0078792B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00—Methods or installations for drawing-off water
    • E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
    • E03B9/14—Draining devices for hydrants

Definitions

  • the invention relates to an above-ground hydrant with a columnar housing, in which a valve which can be actuated with a valve spindle and a spindle nut is arranged at the lower end and which has an emptying opening which is open when the valve is closed, the end piece of the valve being connected to one in the Aligned axis of the hydrant, housing-fixed, hollow mandrel is slidably and near the lower end of the mandrel to the cavity of an outwardly leading channel is connected.
  • the emptying openings of such known above-ground hydrants serve to drain off the water column remaining in the column-like housing after water has been removed from the hydrant, so that, in particular in the cold season, the hydrant is prevented from freezing up.
  • the drain opening was arranged on the periphery of the columnar housing near the lower end thereof. The drain opening was ground when the end piece was lifted from the valve seat by a correspondingly large-sized sealing element and released again when the valve was closed.
  • the invention aims to provide a surface hydrant, in which the closure of the drain opening is ensured for long periods of time without maintenance work even with heavily polluted water when the valve is open, and in which the drain opening is securely closed when the valve is opened.
  • the invention consists in a above ground hydrant of the type specified essentially in that the end piece tightly encloses an outer smooth cylindrical portion of the mandrel and that the drain opening over the cavity of the mandrel formed by an axial bore and at least one of the valve seat lifted end piece closable radial opening opens into the space above the valve seat.
  • the emptying opening opens via an axial bore of the mandrel and at least one radial opening into the space above the valve seat, central drainage of the water contained in the columnar housing after the valve is closed is achieved and the seal is limited to the peripheral surface of the mandrel , which area is at a distance above the lowest point of the hydrant, so that there is no risk of contamination by pollution.
  • the seal can be formed by O-rings sliding on the circumference of the mandrel.
  • the design can be such that the valve spindle is fixed in a manner known per se to be non-rotatable and axially immovable on the housing and is formed on the free end section of the mandrel and that the end piece is formed or connected to a sleeve sliding on the smooth cylindrical section of the mandrel , which in the open position of the valve sealingly engages over the radial opening (s) of the mandrel and releases it in the closed position of the valve.
  • the safe closure of the emptying opening is ensured when the valve is opened by the sliding sleeve which, after opening the valve, sealingly engages over the openings for the axial bore.
  • the training can also be made so that the hollow valve stem is rotatably mounted on the smoothly formed free end portion of the mandrel and that the spindle nut, or the end piece is formed or connected to a sliding sleeve on the cylindrical jacket of the mandrel, which in the Open position of the valve sealingly engages over the radial opening (s) of the mandrel and releases it in the closed position of the valve.
  • the guide mandrel itself can be designed in a simple manner with a cylindrical jacket and the valve spindle can preferably be tubular and can be mounted on the guide mandrel.
  • the sealing of the openings in the mandrel can be achieved in a particularly simple manner in that the sleeve near its two ends on its inner circumference sealing rings, in particular 0- Rings, wears.
  • Such O-rings which only span the small diameter of the mandrel, ensure a long service life of the seal without the need for maintenance work.
  • the design is such that the spindle nut or the end piece has at least one radial opening, which is in open connection with the openings of the mandrel in the closed position of the valve, in particular flush, resulting in a particularly simple construction of the entire locking mechanism for the valve .
  • the spindle nut When the above-ground hydrant is designed with a tubular valve spindle, the spindle nut must be secured against rotation in order to ensure the stroke of the spindle nut, the anti-rotation device for the end piece and thus the sealing element also being essential for gentle treatment of the sealing body of the valve.
  • This protection against rotation is preferably made so that the radial opening of the spindle nut or the end piece is designed as an elongated hole extending in the axial direction, in which engages a cross pin connected to the mandrel, resulting in a particularly simple construction. It is thus possible to avoid the claws on the inner circumference of the column-shaped housing, which are complex in terms of shape, as were provided in known constructions for the engagement of a part which is connected in a rotationally fixed manner to the valve body.
  • the construction is expediently such that the tubular spindle carries a bush mounted on the mandrel, which at least on the side facing away from the valve the mandrel is secured against axial displacement by a locking member connected to the mandrel.
  • the closing pressure of the valve is absorbed by the locking members on the mandrel and the rotatability of the tubular spindle is in no way impaired.
  • Fig. 1 denotes the columnar housing of the hydrant, which is screwed to a hydrant head and a hydrant foot 3.
  • Water outlet openings 4 are provided in the hydrant head 2 and can be locked by a cap 5.
  • the hydrant head 2 is sealed off at the top by a cover plate 6, the cover plate 6 being connected to the hydrant head 2 in a sealing manner by means of screws 7.
  • a cap 8 is rotatably mounted on the hydrant head 2 and is connected in a rotationally fixed manner to an actuating tube 9 by means of a screw 10. By turning the cap 8 and thus the tube 9, the valve is actuated.
  • the actuating tube 9 is rotatably connected to a spindle nut 11 which meshes with a spindle thread of a mandrel 12 rigidly fixed in the hydrant foot 3.
  • the spindle nut 11 By turning the spindle nut 11, the spindle nut is moved up and down in the axial direction of the mandrel 12.
  • an end piece 13 With the spindle nut 11, an end piece 13 is axially immovably connected relative to the spindle nut and carries the sealing element 14 of the valve.
  • the valve On the left side of FIG. 1, the valve is shown in the open state, whereas the right side of FIG. 1 shows the valve in the closed state.
  • the pressurized water enters in the direction of arrow 15 and the pressurized water can be withdrawn via the water removal openings 4 when the valve is open.
  • the spindle nut 11 can be moved downwards until the sealing element 16 lies sealingly against the valve seat.
  • the water column remaining in the column-like housing 1 after closing the valve can now reach radial openings 18 on the circumference of the mandrel 12 via a radial opening 17 in the end piece 13. These radial openings 18 pass into an axial bore 19 of the mandrel 12, which opens at 20 into the drain channel 21.
  • the radial openings 18 are arranged in a region of the mandrel 12 which has a smooth cylindrical outer surface.
  • the end piece 13 is connected on its inside facing the mandrel 12 to a sealing sleeve 22, which carries at both ends on the periphery of the smooth cylindrical region of the mandrel 12 O-rings 23 which are guided in a sliding manner.
  • this sleeve is moved together with the end piece 13 in the axial direction so far that the radial openings 18 of the dome 12 are released and are in open connection with the interior of the columnar housing 1 via the openings 17 in the end piece.
  • FIG. 2 differs from the configuration according to FIG. 1 only in that the pressure water is supplied in the direction of arrow 24 from below.
  • a vent valve 28 is provided in the cover plate 6, which ensures the unimpeded drainage of the water column after the valve is closed.
  • a tubular rotatable spindle 29 which carries a bush 30 with an external thread at its lower end.
  • the bushing 30 is mounted on a mandrel 31 which is axially immovably connected to the hydrant foot 3 and which has the radial openings 18 already designated in FIGS. 1 and 2 and the axial bore 19.
  • the end piece 13 is formed in one piece with the spindle nut 11, which is in engagement with the thread of the sleeve 30. Upon rotation of the tubular spindle 29, the end piece 13 is moved up or down in the direction of the axis 32 of the mandrel 31.
  • the end piece 13 again carries a sleeve 22 which is guided on the jacket of the mandrel 31 by the O-rings 23 in a sealing manner and is displaceable in the axial direction relative to the mandrel 31.
  • the end piece 13 has an elongated hole 33 which extends in the axial direction and into which a pin 34 engages.
  • the pin 34 passes through the mandrel 31 and a bearing ring 35, on which the sleeve 30 of the tubular spindle is supported downwards.
  • the sleeve 30 in turn carries an O-ring 36, which prevents water from entering the interior of the tubular spindle 29.
  • the closing forces of the valve are supported by the locking member 37 designed as a plate, which engages over the bush 30 and secures it against an axial movement upwards.
  • the locking member 37 is connected to the mandrel 31 by a screw 38. 3, the reference numerals of FIGS. 1 and 2 have been retained for the same components.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanically-Actuated Valves (AREA)

Claims (7)

1. Colonne d'incondie comportant une caisse (1, 2, 3) en forme de colonne dans laquelle une soupape (13, 14, 16) commandable par un système de tige de soupape et écrou est disposée au bas, et comprenant une trouée de vidage qui est ouverte lorsque la soupape est fermée, l'organe de fermeture (13) de ladite soupape étant guidé de sorte qu'il peut glisser sur un mandrin creux et fixe par rapport à ladite caisse (12, 31) et orienté dans l'axe de la colonne, et un conduit (20, 25) menant vers l'extérieur étant fixé près du bas bout du mandrin à l'espace creux du dernier (19), characterisée ou ce que l'organe de fermeture (13) enserre étanchement une lisse partie cylindrique extérieure dudit mandrin (12, 31), et que la trouée de vidage débouche au dessus de l'espace creux (19) dudit mandrin (12, 31) formé par un alésage axial, et qu'au moins une ouverture radiale (18) qui peut être servée par l'organe de fermeture (13) détaché du siège (16) de ladite soupape débouche dans l'espace au dessus dudit siège (16).
2. Colonne d'incondie selon la revendication 1, characterisée en ce que la tige de ladite soupape est fixée à ladite caisse d'une façon comme de soi si bien qu'elle ne peut pas être sordue ni glissée axialement et disposée à la partie terminale litre dudit mandrin (12), et que l'organe de fermeture (13) est pourvue de ou solidaire d'une douille (22) glissant sur la partie cylindrique lisse du mandrin (12) qui recouvre la (les) ouverture(s) radiale(s) (18) dudit mandrin (12) ou les rendant étanches lorsque la soupape est ouverte et la (les) lâche lorsque la soupape est formée.
3. Colonne d'incondie selon la revendication 1, characterisée en ce que la tige creuse de ladite soupape est articulée sur la partie terminale lisse dudit mandrin (31) et que l'écrou de ladite tige (11) ou l'organe de fermeture (13) est pourvue de ou solidaire d'une douille (22) glissant sur la chemise cylindrique dudit mandrin (12) qui recouvre la (les) ouverture(s) radiale(s) dudit mandrin (31) en les rendant étanches lorsque la soupape est ouverte et la (les) lâche lorsque la soupape est fermée.
4. Colonne d'incondie selon la revendication 2 ou 3, characterisée en ce que la douille (22) comporte des anneaux, notamment des anneaux en 0, sur sa circonférence intérieure près de ses deux extremités.
5. Colonne d'incondie selon l'une des revendications 1 à 4, characterisée en ce que l'écrou (11) de ladite tige ou l'organe de fermeture (13) comporte au moins un forage radial (17,33) qui est en raccordement ouvert, notamment en alignement, aux ouvertures (18) dudit mandrin (12,31).
6. Colonne d'incondie selon la revendication 5, characterisée en ce que le forage radial de l'écrou de ladite tige (11) ou de l'organe de fermeture (13) est formée en trou allongé (39) s'étendant en direction axiale avec lequel engrène une cheville traversière (34) solidaire dudit mandrin.
7. Colonne d'incondie selon la revendication 3 ou 6, characterisée en ce ladit tige (29) comporte un étui (30) monté sur ladit mandrin (31) qui est bloqué contre chaque déplacement axial au moins du côté détourné de la soupape dudit mandrin (31) par un organe de verrouillage (38) solidaire dudit mandrin (31 ).
EP19820890162 1981-11-04 1982-11-03 Colonne d'incendie Expired EP0078792B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4726/81 1981-11-04
AT472681A AT373001B (de) 1981-11-04 1981-11-04 Ueberflurhydrant

Publications (2)

Publication Number Publication Date
EP0078792A1 EP0078792A1 (fr) 1983-05-11
EP0078792B1 true EP0078792B1 (fr) 1985-05-29

Family

ID=3567609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820890162 Expired EP0078792B1 (fr) 1981-11-04 1982-11-03 Colonne d'incendie

Country Status (4)

Country Link
EP (1) EP0078792B1 (fr)
AT (1) AT373001B (fr)
DE (1) DE3263926D1 (fr)
YU (1) YU42603B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721306B1 (fr) * 1994-06-17 1996-08-09 Pont A Mousson Procédé et dispositif antipollution pour distribuer un fluide depuis un poste de distribution à plusieurs prises de branchement et utilisation.
DE102007060624B4 (de) * 2007-12-15 2017-07-06 Vag-Armaturen Gmbh Hydrant
CN112982573B (zh) * 2021-03-09 2024-05-24 列斯丽(深圳)技术有限公司 自排水式消火栓结构及包含它的消防井
CN113137482B (zh) * 2021-04-26 2023-04-07 陈晓东 一种具有防盗水功能的取水栓

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT228721B (de) * 1961-11-07 1963-08-12 Franz Krammer Hydrant, insbesondere Oberflurhydrant für Feuerlöschzwecke
AT330679B (de) * 1974-03-25 1976-07-12 Huebner Vamag Uberflurhydrant
AT335923B (de) * 1974-03-25 1977-04-12 Huebner Vamag Hydrant

Also Published As

Publication number Publication date
EP0078792A1 (fr) 1983-05-11
DE3263926D1 (en) 1985-07-04
YU246682A (en) 1986-06-30
YU42603B (en) 1988-10-31
AT373001B (de) 1983-12-12
ATA472681A (de) 1983-04-15

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