EP2123331A1 - Clapet anti-feu - Google Patents

Clapet anti-feu Download PDF

Info

Publication number
EP2123331A1
EP2123331A1 EP09006748A EP09006748A EP2123331A1 EP 2123331 A1 EP2123331 A1 EP 2123331A1 EP 09006748 A EP09006748 A EP 09006748A EP 09006748 A EP09006748 A EP 09006748A EP 2123331 A1 EP2123331 A1 EP 2123331A1
Authority
EP
European Patent Office
Prior art keywords
contact switch
butterfly valve
fire damper
damper according
cam
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
Application number
EP09006748A
Other languages
German (de)
English (en)
Other versions
EP2123331B1 (fr
Inventor
Heinrich Dipl.-Ing. Dammers
Dieter Dipl.-Ing. Grabner
Rüdiger Gurny
Martin Dipl.-Ing. Mosters
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.)
Gebrueder Trox GmbH
Original Assignee
Gebrueder Trox GmbH
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 Gebrueder Trox GmbH filed Critical Gebrueder Trox GmbH
Publication of EP2123331A1 publication Critical patent/EP2123331A1/fr
Application granted granted Critical
Publication of EP2123331B1 publication Critical patent/EP2123331B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers

Definitions

  • the invention relates to a fire damper with a housing for a pivotally mounted therein butterfly valve, wherein the butterfly valve is fixable by means of a fixing against a restoring force in its open position and from the fixed position (open position or "on” position), for example in case of fire after triggering Fixing device by the restoring force in its closed position (“closed” position) is pivotable.
  • the housing of such a fire damper usually has a provided with a material which expands when heated material portion, the portion is provided along the circumference of the shut-off valve located in the closed state and preferably bounded on both sides, in particular formed as a groove, and wherein in the housing and in the material at least one passage for the pivot axis is provided and the width of the material preferably at least approximately equal to the thickness of the butterfly valve and wherein in the closed state of the butterfly valve between the outer edge of the butterfly valve and the inner surface of the material, which is not yet extended by the action of heat has, a circumferential movement gap is provided.
  • the relocation of the butterfly valve in the "on" position is cumbersome.
  • the object of the invention is to provide a fire damper in which the butterfly valve is easily from the outside of the open position in the closed position but also reversed displaced.
  • the butterfly valve is provided from its closed position against the restoring force in the open position directly or indirectly cooperating with the shut-off valve and arranged on the outside of the housing actuating handle which has at least one, in particular circumferentially provided, projection, which in the open position of the butterfly valve interacts with a corresponding surface of at least one sub-region also arranged outside the housing fixing device.
  • the locking mechanism triggers automatically on the fixing device. The fixing device releases the prestressed spring force.
  • the operating handle may for example consist of plastic, which is produced by injection molding.
  • the operating handle on the outside corresponding markings, so that it is directly recognizable, in which position the butterfly valve is located.
  • the operating handle can be arranged directly at the end on the pivot axis, which is guided through a passage from the housing and on which the butterfly valve is rotatably mounted, can be arranged. But it is also quite possible that the operating handle is attached to a drive shaft which is connected via a linkage with the butterfly valve and so the rotational movement is transmitted from the operating handle to the butterfly valve.
  • the actuating handle may have a latching element which cooperates in the closed position of the butterfly valve with a corresponding latching recess of the fixing device and prevents pivoting into the open position. If the fire damper in case of fire from the open position pivoted by the restoring force in the closed position, the locking element prevents a renewed, possibly unintentional, pivoting the butterfly valve in the open position.
  • the locking function is integrated into the actuating handle, so that - in contrast to known fire dampers - no separate, fixed to the housing latching plate is required.
  • the locking element against a restoring force from the pivoting preventing blocking position in a pivoting enabling release position can be designed to be displaced.
  • the locking element may be formed as a resilient tab, which is preferably provided peripherally on the actuating handle. To release the tab is displaced against its spring force, so that then the butterfly valve is pivoted back into the open position.
  • the operating handle can be assigned to the outside of a housing fixedly arranged, in particular mecanicklippstes, lower part.
  • the lower part has a trained as a support bearing implementation for the pivot axis or the drive shaft. Then, the lower part prevents tilting or axial displacement of the pivot axis or the drive shaft.
  • the lower part has a molded stop for limiting the rotational movement of the actuating handle in the direction of the closed position of the butterfly valve on reaching the closed position.
  • the actuating handle has at least one cam and the lower part at least one contact switch, wherein the contact switch is arranged so that is activated by the cam, the contact switch in the closed position.
  • the corresponding contact switch is automatically activated via the cam, so that e.g. to a central building control system a corresponding signal is emitted.
  • the actuating handle may comprise at least one cam and the lower part at least one contact switch, wherein the contact switch is arranged so that is activated by the cam of the contact switch in the open position.
  • the contact switch is arranged so that is activated by the cam of the contact switch in the open position.
  • At least one contact switch can be inserted into a receptacle arranged on the lower part. This facilitates easy installation and also a subsequent disassembly.
  • At least one receptacle is associated with a fixing element for fixing the contact switch in the receptacle.
  • the fixing element for example by depression, the contact switch can be inserted into the receptacle or else pulled out.
  • the lower part can take over several functions. So it can serve as a support sleeve for the pivot axis or the drive shaft, as a bearing sleeve for a arranged around it and the restoring force generating torsion spring, as a receptacle for any contact switch and as a cable fixation. If a stop is provided, this can also limit the rotational movement in the direction of the closed position of the shut-off valve when the closing position is reached.
  • a fire damper which has a housing 1 and arranged therein on a transverse to the flow direction of the pivot axis 2 rotatably mounted shut-off valve 3.
  • the butterfly valve 3 is shown in the open position.
  • an actuating handle 4 is provided, which is attached to the end of a drive shaft 5, which led out of the housing 1 through a passage 6 is.
  • a drive shaft 5 is connected to the rotatable mounted on the pivot axis 2 shut-off valve 3, so that the rotational movement is transmitted from the operating handle 4 on the butterfly valve 3.
  • a lower part 8 which is fastened on the outside to the housing 1 on the one hand by means of a clip as anti-twist device 9 and on the other side by a screw 10.
  • the lower part 8 has a passage 11 as a bearing sleeve for the drive shaft 5, through which the drive shaft 5 is guided.
  • the lower part 8 serves as a bearing sleeve.
  • the lower part 8 has an integrally formed stop 12, which cooperates with a corresponding stop surface 13 of the actuating handle 4.
  • the stop 12 serves to limit the rotational movement of the actuating handle 4 in the direction of the closed position of the butterfly valve 3 upon reaching the closed position.
  • a cylindrically shaped support sleeve 14 is provided, on which a torsion spring 15 is attached.
  • the one end 16 of the torsion spring 15 is supported in a corresponding recess in the lower part 8.
  • the other end 17 of the torsion spring 15 is guided in a corresponding recess of a drive plate 18 which is rotatably connected to the drive shaft 5 having a quadrangular cross-section. Adjacent to the drive plate 18, a hold-down 19 is provided.
  • the actuating handle 4 is fastened via a central screw 20 with positive engagement with the drive shaft 5.
  • two contact switches 21 are provided, which are arranged with respect to the support sleeve 14 at approximately an angle of 90 ° to each other. These contact switches 21 are fixed in separate receptacles 22 provided on the lower part 8. Each receptacle 22 consists of two spaced apart bracket elements, between which the relevant contact switch 21 is inserted.
  • Each contact switch 21 is fixed in each case via a fixing element 23, which can be pressed down to the insertion and removal of the contact switch 21 from the receptacle 22, and is thereby held in position.
  • the operating handle 4 has a cam 24 which cooperates with the contact switches 21.
  • the contact switch 21 are shown only schematically. These have, for example, on the cam 24 side facing a contact bleach, which is pressed down by the cam 24 and thus takes place an activation. The respective contact switch 21 is thus actuated by the cam 24 of the actuating handle 4.
  • the lower part 8 has a cable fixing 25 for strain relief for the cable of the contact switch 21.
  • the actuating handle 4 has a circumferentially provided projection 26, which in the open position of the butterfly valve 3 cooperates with a corresponding surface 27 of a arranged at least with a partial area outside the housing 1 fixing device 28.
  • the fixing device 28 has a known fusing mechanism located in the housing 1.
  • the corresponding surface 27 of the fixing device 28 is part of a recess in the illustrated embodiment.
  • FIGS. 4 and 5 is the projection 26 of the actuating handle 4 in the corresponding recess, so that the butterfly valve 3 is in the open position and while the torsion spring 15 is stretched.
  • the fixing device 28 which includes, for example, a fusible link
  • the projection 26 releases after triggering, so that the butterfly valve 3 is displaced due to the restoring force in the closed position, the in Fig. 6 is shown.
  • a resilient tab locking element 29 which is provided on the circumference of the operating handle 4.
  • the locking element 29 acts in the closed position of the butterfly valve 3 with a corresponding recess 30 of the fixing device 28 together. Pivoting into the open position is only possible when the resilient tab is again in the release position, i. is shifted in the direction of arrow 31.
  • the actuating handle 4 covers the essential areas of the lower part 8.
  • the torsion spring 15 and at least the essential areas of the contact switch 21 are covered.
  • the operating handle 4 protects the operating handle 4 from injury by the torsion spring 15th

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lift Valve (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Special Wing (AREA)
EP20090006748 2008-05-19 2009-05-19 Clapet anti-feu Active EP2123331B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200820006786 DE202008006786U1 (de) 2008-05-19 2008-05-19 Brandschutzklappe

Publications (2)

Publication Number Publication Date
EP2123331A1 true EP2123331A1 (fr) 2009-11-25
EP2123331B1 EP2123331B1 (fr) 2013-07-10

Family

ID=39877549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090006748 Active EP2123331B1 (fr) 2008-05-19 2009-05-19 Clapet anti-feu

Country Status (5)

Country Link
EP (1) EP2123331B1 (fr)
DE (1) DE202008006786U1 (fr)
DK (1) DK2123331T3 (fr)
ES (1) ES2427839T3 (fr)
PT (1) PT2123331E (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI123082B (fi) 2009-04-30 2012-10-31 Flaekt Woods Ab Ilmanvaihtokanavan säätöpelti
DE102013003280A1 (de) 2013-02-27 2014-08-28 Gert Bartholomäus Brandschutzklappe zur Verhinderung von Brand- und Rauchübertragung in einem Rohrgehäuse

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2259656A1 (de) 1972-12-01 1974-06-20 Nordluft Norddeutsche Ges Fuer Mit einer schwenkbaren, unter der wirkung einer schliesskraft stehenden feuerschutzklappe ausgestattetes einbaugehaeuse fuer lufttechnische anlagen
EP1779901A2 (fr) 2005-10-27 2007-05-02 Ciat Sp. z o. o. Clapet coupe-feu

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2259656A1 (de) 1972-12-01 1974-06-20 Nordluft Norddeutsche Ges Fuer Mit einer schwenkbaren, unter der wirkung einer schliesskraft stehenden feuerschutzklappe ausgestattetes einbaugehaeuse fuer lufttechnische anlagen
EP1779901A2 (fr) 2005-10-27 2007-05-02 Ciat Sp. z o. o. Clapet coupe-feu

Also Published As

Publication number Publication date
DK2123331T3 (da) 2013-10-07
EP2123331B1 (fr) 2013-07-10
PT2123331E (pt) 2013-10-01
DE202008006786U1 (de) 2008-10-23
ES2427839T3 (es) 2013-11-04

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