EP2910283B1 - Clapet anti-feu - Google Patents

Clapet anti-feu Download PDF

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Publication number
EP2910283B1
EP2910283B1 EP15155350.0A EP15155350A EP2910283B1 EP 2910283 B1 EP2910283 B1 EP 2910283B1 EP 15155350 A EP15155350 A EP 15155350A EP 2910283 B1 EP2910283 B1 EP 2910283B1
Authority
EP
European Patent Office
Prior art keywords
actuating handle
rotation
fire protection
flap
open position
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.)
Active
Application number
EP15155350.0A
Other languages
German (de)
English (en)
Other versions
EP2910283A1 (fr
Inventor
Martin Fels
Martin Mosters
Andreas Strauss
Rüdiger Gurny
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
Priority to EP15155350.0A priority Critical patent/EP2910283B1/fr
Priority to PL15155350T priority patent/PL2910283T3/pl
Publication of EP2910283A1 publication Critical patent/EP2910283A1/fr
Application granted granted Critical
Publication of EP2910283B1 publication Critical patent/EP2910283B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/241—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages

Definitions

  • the invention relates to a fire damper with a housing and with a, in particular centrally on the housing cross section, between an open position and a closed position about a pivot axis pivotally mounted shut-off valve, wherein for pivoting, ie for clamping, the shut-off valve from its closed position against the restoring force in its open position a directly or indirectly cooperating with the shut-off valve and arranged on the outside of the housing to an associated rotary axis rotatable actuating handle is provided, wherein at least one stop is provided, against which the butterfly valve in its open position directly or indirectly abuts, and wherein the fire damper a triggering device, which can be brought into a fixing position and by heat or the like, for example in case of fire, triggered and thus automatically displaced into a release position, and wherein the Betrelincysgrif f and thus connected to it the shut-off valve in the open position against a restoring force by means of the release device located in its fixing position in a position corresponding to the open position of
  • a fire damper with a housing and with a pivotally mounted therein about a pivot axis around the known butterfly valve is known.
  • DE 42 34 800 A1 Basis for the preamble of claim 1
  • a similar fire damper is known.
  • the butterfly valve should be aligned in the open position as parallel as possible to the flow direction.
  • the stop arranged in the butterfly valve is adjustable in order to compensate for tolerance variations, as they may exist, for example, within the Obviouslyssmechanismusses. On site, the butterfly valve is moved to its open position and then fixes the stop in this position accordingly.
  • the disadvantage here is that it is not guaranteed in this way that the shut-off valve is actually aligned parallel to the flow direction.
  • the object of the invention is to avoid the aforementioned disadvantages and to provide a fire damper, wherein in the open position, the butterfly valve is aligned as parallel as possible to the flow direction.
  • This object is achieved in that either the material of the actuating handle and / or arranged between the actuating handle and the axis of rotation intermediate element is (are) designed such that a further displacement beyond the open position of the butterfly valve, in particular twisting, cooperating with the triggering device Part of the operating handle in the same direction of rotation, overcoming a after locking done on the butterfly valve and the butterfly valve pressing against the stop, additional restoring force is possible.
  • the embodiment of the invention allows that the stop can already be factory mounted so at the desired location on the inside of the housing, that the butterfly valve is aligned in the applied state in each case parallel to the flow direction. This is possible by the material of the actuating handle and / or by an intermediate element arranged between the actuating handle and the axis of rotation or the butterfly valve.
  • the restoring force acts between the housing of the fire damper and the operating handle or between the housing of the fire damper and the intermediate element.
  • the material of the actuating handle is designed such that a further displacement beyond the open position of the butterfly valve is possible by the material itself, the additional restoring force is generated by this material.
  • the material may be, for example, an elastomer or a torturous metal, which is arranged, for example, between the end of the axis of rotation and the actuating handle.
  • the additional restoring force acts between the intermediate element and the actuating handle.
  • the intermediate element can be arranged rotationally fixed relative to the butterfly valve or with respect to the axis of rotation with which the butterfly valve is connected.
  • the restoring force engages on the one hand on the housing of the fire damper and on the other hand on the operating handle, the restoring force, which is generated for example by a coil spring, is "out of service” in the locked state of the butterfly valve, since the operating handle is locked. In this state, however, the additional restoring force is still “active” because the additional restoring force presses the butterfly valve against the stop. Therefore, at least in this position of the butterfly valve, the additional restoring force is greater than the frictional force acting between the inside of the housing and the butterfly valve.
  • the actuating handle can still be moved beyond the point at which the shut-off flap already comes into contact with the stop in the same direction of rotation.
  • the additional restoring force is at least so great that the fire damper in the open position always rests against the stop, so that it does not come to unwanted vibrations.
  • the actuating handle and / or the intermediate element may (may) consist of a suitable material, such as a plastic. Due to the resulting elastic bending the above-described displacement of the operating handle is possible. Alternatively or in addition can (can) the operating handle and / or the intermediate element at least one local weakening, for example in the form of a notch or constriction, which allow the above-described displacement.
  • the butterfly valve In the closed position, the butterfly valve is in contact with the inside of the housing over its circumference. In that regard, at the beginning of the pivoting from its closed position to its open position, the highest frictional forces resulting from the contact between the butterfly valve and the inside of the housing to overcome.
  • the frictional forces occurring in the area, when the butterfly valve has reached its open position or when the butterfly valve is close to reaching its open position, may not exceed at least the additional restoring force. If the frictional forces in this area were greater than, for example, the additional restoring force, the actuating handle could still be displaced in the same direction of rotation. However, although the actuating handle is in the fixing position, the butterfly valve could not assume the desired flap position, so that so that the butterfly valve in the open position does not rest against the stop and thus would vibrate.
  • the butterfly valve for example, in manufacturing tolerances, as they may occur, for example, consisting of several components transmission mechanisms is aligned in the open position to a parallel to the flow direction and on the other rests against the stop.
  • the release device may be, for example, a bolt guided in a tube, whose one end projects into the housing and whose other end terminates in a recess in the region of the housing wall.
  • the bolt is clamped against a restoring force generated by a spring and fixed in the tensioned state by means of a fused solder located in the housing.
  • a projection attached to the back of the actuating handle can engage.
  • the bolt is automatically displaced by the spring to some extent to the outside.
  • the projection of the actuating handle is pressed out of the recess and the actuating handle and thus also the butterfly valve pivoted into the closed position.
  • the additional restoring force may be greater than the restoring force to be applied for shifting the shut-off valve from its closed position into its open position. This is useful if, for example, the restoring force acts, on the one hand, on the housing of the fire damper and, on the other hand, on the intermediate element.
  • the additional restoring force may be less than or equal to the restoring force to be applied to shift the butterfly valve from its closed position to its open position. Also, the additional restoring force may be greater than the restoring force to be applied to shift the butterfly valve from its closed position to its open position.
  • the additional restoring force is in any case at least so great that the fire damper in the open position always rests against the stop, so that it does not come to unwanted vibrations.
  • the pivot axis of the butterfly valve and the axis of rotation of the actuating handle may be concentric or aligned with each other, in particular in one piece.
  • the actuating handle may be connected with a positive connection with the axis of rotation, wherein the form-fitting has game and the use of this game is not yet released by the additional restoring force.
  • the axis of rotation may have a quadrangular cross-section.
  • the actuating handle preferably has a recess with four corners, wherein each edge portion of the recess between the center and a corner is widened, so that the actuating handle against the axis of rotation game.
  • an intermediate element may for example be provided a slip clutch.
  • the intermediate element may comprise at least one spring whose one end acts indirectly or directly on the axis of rotation, for example on at least a portion of the intermediate element, and the other end indirectly or directly on the actuating handle, wherein the intermediate element is arranged rotationally fixed relative to the axis of rotation.
  • the intermediate element comprises at least one bearing surface, a corresponding counter bearing and at least one spring, wherein the axis of rotation at least one laterally opposite the axis of rotation projecting, the axis of rotation facing bearing surface on which the one end of, preferably designed as a compression spring and supported tangentially with respect to the axis of rotation aligned spring, and the actuating handle for the other end of the spring has the corresponding abutment.
  • the bearing surface is rotationally fixed on or arranged opposite to the axis of rotation, while the actuating handle has a play relative to the axis of rotation.
  • the counter bearing may also be part of a recess which is provided on the actuating handle and in which the spring in question is mounted.
  • a, preferably the actuating handle in the region of the axis of rotation from the outside overlapping, rotatably connected to the axis of rotation element may be provided, which has at least one, at least one bearing surface forming, side part.
  • the bearing surface serves as a bearing for a spring.
  • the intermediate element may be at least one resilient, d. H. elastically formed, area, wherein the intermediate member rotatably on or opposite to the axis of rotation is arranged and the resiliently formed area indirectly or directly, in particular laterally, acts on the actuating handle.
  • the operating handle has in this embodiment a game against the axis of rotation.
  • At least one region is formed as a radially extending, arm-like projection formed in relation to the axis of rotation, the free end cooperating with a recess associated with the actuating handle.
  • each projection is changed depending on the applied force by the elastic configuration at least in a partial area in its configuration, so that the relative arrangement of the intermediate element relative to the operating handle can change.
  • the intermediate element may have two mutually pioneering, radially extending, arm-like projections, wherein the free end of each projection cooperates with a recess associated with the actuating handle.
  • the intermediate element is designed as a torsion enabling element which is on the one hand rotatably connected to the rotational axis and on the other hand rotatably connected to the actuating handle.
  • a torsion enabling element which is on the one hand rotatably connected to the rotational axis and on the other hand rotatably connected to the actuating handle.
  • such an intermediate element is formed resiliently twisting.
  • the actuating handle against a restoring force with respect to the housing at least in the region of its free end can be slightly raised relative to the housing.
  • At least one stop can be arranged on the inside of the housing.
  • a stop for example, be attached to the inside of the housing an angle.
  • a transmission mechanism acting on the shut-off flap may be provided in the housing and for at least one stop to be arranged on the shut-off flap and / or on the transmission mechanism, preferably on the side of the transmission mechanism facing the shut-off flap.
  • Fig. 1 to 7 a total of seven embodiments of a fire damper according to the invention are shown.
  • Each fire damper has a housing 1 with a centrally in relation to the housing cross-section, between an open position and a closed position about a pivot axis 23 pivotally mounted around the butterfly valve 2.
  • an actuating handle 4 is provided on the outside of the housing 1, which is rotatably mounted about a rotation axis 5.
  • the operating handle 4 has in the embodiments of the FIGS. 1 to 4 on the back in the region of its free end a projection projecting back on the back 6.
  • the projection 6 laterally opposite to the outer contour of the operating handle 4.
  • the coil spring 3 is guided around the outside of the rotation axis 5 in the illustrated embodiment.
  • the pivot axis 23 of the butterfly valve 2 and the axis of rotation 5 of the operating handle 4 are separate components.
  • the butterfly valve 2 is connected via a non-illustrated, arranged in the interior of the housing 1 transmission mechanism 24 with the axis of rotation 5.
  • the transmission mechanism 24 has a rotary bearing 25 provided on the shut-off flap 2 and a coupling rod 26 connected directly or indirectly to the rotation axis 5.
  • a stop 7 is provided, on which the butterfly valve 2 rests directly in its open position.
  • the stopper 7 is disposed respectively on the inside of the housing 1.
  • the stopper 7 is arranged on the shut-off valve 2 or on the transmission mechanism 24, for example on the side of the coupling rod 26 facing the shut-off flap 2.
  • the butterfly valve 2 and the coupling rod 26 are aligned approximately parallel, wherein the stop 7 prevents further pivoting of the butterfly valve 2 beyond the open position addition.
  • the housing 1 may, for example, have a round or a rectangular housing cross-section.
  • the height of the housing 1 is shown smaller in the figures than in the length of the housing 1. In practice, either the height compared to the length of the housing 1 is greater or the length compared to the height of the housing 1 is smaller, so that in the open position, the butterfly valve 2 abuts against the stop 7.
  • a release device 8, not shown, is provided.
  • the triggering device 8 comprises a arranged in the region of the housing recess 9, in which a bolt, not shown, is guided.
  • the projection 6 In the open position, d. H. in the fixing position of the operating handle 4, the projection 6 is in the recess 9.
  • the bolt In case of fire, the bolt is automatically displaced by a spring to a certain extent from the recess 9 to the outside, whereby the projection 6 of the operating handle 4 is pressed out of the recess 9 and the butterfly valve 2 and thus also the operating handle 4 by the restoring force generated by the coil spring 3 in the closed position, d. H. in the release position of the operating handle 4, is pivoted.
  • FIGS. 1 to 4 is additionally provided on the outside of the housing 1, a blocking element 10 in the form of a bolted sheet.
  • the free end is arranged at a distance from the housing 1.
  • the blocking element 10 after Fig. 1e still has a slot 11. In the closed position of the butterfly valve 2 protrudes the projection 6 of the operating handle 4 in the embodiment Fig. 1 in the slot 11 inside.
  • the butterfly valve 2 are moved from its closed position into its open position against the restoring force generated by the coil spring 3, the operating handle 4 in the region of its free end must first be slightly raised relative to the housing 1 against the direction of the arrow 12. As a result, the operating handle 4 is displaced from the slot 11 and can be moved by the blocking element 10 when rotated in the direction of the arrow 13, so that the actuating handle 4 can be rotated in the direction of the arrow 13.
  • a first embodiment is shown, in which an intermediate element 14 between the actuating handle 4 and the axis of rotation 5 is arranged.
  • the intermediate element 14, which is arranged rotationally fixed relative to the axis of rotation 5, in the illustrated embodiment comprises a total of two springs 15, wherein one end of each spring 15 act directly on the axis of rotation 5 and the other end directly on the operating handle 4.
  • an operating handle 4 in the region of the axis of rotation 5 from the outside overlapping, rotatably connected to the axis of rotation 5 connected element 16 is provided, which has two mutually spaced side parts 17.
  • Each side member 17 forms two bearing surfaces 18.
  • the other end of each spring 15 acts laterally on the corresponding abutment 19 of the actuating handle 4.
  • each abutment 19 for fixing the corresponding spring 15 in a recess 20 of the actuating handle 4 is provided.
  • the butterfly valve 2 In the in the Fig. 1b to 1g shown position, the butterfly valve 2 is already in its open position, since it already has contact with the stopper 7. However, the projection 6 of the actuating handle 4 can not yet interact with the recess 9 of the triggering device 8. In order to overcome the remaining remaining distance, the operating handle 4 is further rotated in the same direction of rotation (arrow 13), overcoming the additional restoring force exerted by the two springs 15.
  • the rotation axis 5 has a quadrangular cross section.
  • a recess is also provided with four corners.
  • each edge portion 21 of the recess between the center and a corner is expanded by the angle ⁇ , so that the operating handle 4 with respect to the axis of rotation has 5 game.
  • Fig. 1f the projection 6 of the actuating handle 4 is fixed in the recess 9 of the triggering device 8. It can be clearly seen that the orientation of the intermediate element 14 relative to the actuating handle 4 after Fig. 1c towards the direction Fig. 1f changed Has. Fig. 1c displays an enlargement of the corresponding area Fig. 1d wherein the element 16 is shown in section.
  • FIG. 2a to 2g a second embodiment of an intermediate element 14 is shown.
  • the intermediate element 14 is non-rotatably arranged on the axis of rotation 5 and has two spaced-apart resiliently formed regions 22, each resiliently formed region 22 acts laterally on the actuating handle 4 arranged therebetween.
  • the operation is identical as in the embodiment of Fig. 1 ,
  • the additional restoring force is in the in the Fig. 2a to 2g illustrated embodiment of the two spaced-apart resiliently formed regions 22.
  • the resilient regions 22 are preferably part of a common component, the rotationally fixed is attached to the axis of rotation 5.
  • the component for example, a quadrangular recess through which the axis of rotation 5 is guided.
  • a third embodiment is shown, which has the same operation.
  • a torsion-enabling element which consists for example of plastic, is provided, one end of which is non-rotatable with the axis of rotation 5 and whose other end is non-rotatable with the actuating handle 4 connected is.
  • the further structural design for example with respect to the realization of the game between the operating handle 4 and the axis of rotation 5, is substantially the same as in the embodiments described above.
  • a fourth embodiment is shown.
  • the intermediate element 14 in turn rotatably relative to the axis of rotation 5 is arranged.
  • the intermediate element 14 is made of plastic, for example. It has a resiliently formed region 22, which acts laterally on the actuating handle 4.
  • the actuating handle 4 is in turn so connected to the axis of rotation 5 in a positive connection that the positive engagement has game and the use of this game by the additional restoring force exerted by the resilient portion 22 is released.
  • a fifth embodiment of an intermediate element 14 is shown.
  • the intermediate element 14 is in turn arranged rotationally fixed relative to the axis of rotation 5 and has two regions 22.
  • Each region 22 is formed as a radially extending, arm-like projection 27 with respect to the axis of rotation 5.
  • the free end of a projection 27 cooperates with a recess 28 associated with the actuating handle 4.
  • the two projections 27 face away from each other, since they are arranged on opposite sides with respect to the axis of rotation 5.
  • the intermediate element 14 and the projections 27 may be formed integrally, for example. At least the projections 27 are made of an elastic and resilient material, such as plastic. Like for example the FIGS. 5a and 5f can be seen, the actuating handle 4 on the inside, the two opposite recesses 28. Each recess 28 serves to receive a projection 27.
  • the axis of rotation 5 has a quadrangular cross-section.
  • the actuating handle 4 itself also has a recess with four corners. Through the recess, the quadrangular axis of rotation 5 is guided. However, as is evident in Fig. 5c shown, each edge portion 21 of the recess between the center and a corner widened by the angle ⁇ , so that the actuating handle 4 with respect to the axis of rotation has 5 game.
  • the butterfly valve 2 In the in the Fig. 5c and 5d shown position, the butterfly valve 2 is already in its open position, since it is in contact with the stopper 7. However, the projection 6 of the actuating handle 4 can not yet interact with the recess 9 of the triggering device 8. In order to overcome the remaining remaining distance, the operating handle 4 must continue in the same direction of rotation (arrow 13), overcoming the restoring force and the additional restoring force, the elastic deformation of the two projections 27 in the in Fig. 5f shown position must be applied to be rotated.
  • Fig. 5f and 5g the projection 6 of the actuating handle 4 is fixed in the recess 9 of the triggering device 8. It can clearly be seen that the orientation of the projections 27 of the intermediate element 14 relative to the actuating handle 4 of Fig. 5d towards the alignment in the Fig. 5f and 5g has changed.
  • Fig. 5c displays an enlargement of the corresponding area Fig. 5d , wherein the area of the operating handle 4, in which the intermediate element 14 is located, is shown cut.
  • the projection 6 can interact with the triggering device 8 - as it is for example in Fig. 5f is shown, the actuating handle 4, overcoming the restoring force and the additional restoring force exerted by the two resilient projections 27, must be further rotated.
  • the operating handle 4 and the intermediate member 14 are formed in two parts. But it is also quite possible that the actuating handle 4 and the intermediate element 14 are integrally formed. In the latter embodiment, at least the projections 27 are then made of a material which has resilient elastic properties and allows the above-described operation.
  • FIGS. 5a to 5g has the triggering device 8 on a run-on slope 29, with the operating handle 4 is partially in contact with its underside.
  • the operating handle 4 Upon rotation of the operating handle 4 in the direction of arrow 13, the operating handle 4 by the run-on slope 29 against a spring force and raised against the direction of the arrow 12, ie moved away from the housing 1.
  • the recess 9 the operating handle 4 is shifted back by the spring force in the direction of the arrow 12 and engages in the recess 9 a.
  • the additional restoring force can either be equal to, greater or less than the restoring force to be applied for shifting the shut-off valve 2 from its closed position to its open position.
  • the one end of the coil spring 3 used in each case interacts with the housing 1 and the other end with the actuating handle 4.
  • the additional restoring force may be greater than or less than the restoring force or equal to the restoring force.
  • FIGS. 6a to 6c show yet another embodiment, in which as an intermediate element 14, a torsion enabling element, which consists for example of plastic, is provided.
  • One surface of the intermediate element 14 is secured against rotation by a connecting plate 32 with the axis of rotation 5.
  • the opposite other surface of the intermediate element 14 is rotatably connected to the actuating handle 4.
  • the coil spring 3 acts between the housing 1 and the connecting plate 32nd
  • FIG. 7a and 7b another embodiment is shown.
  • the operating handle 4 which consists for example of plastic, is integral with the intermediate element 14 trained.
  • the intermediate element 14 has two corrugated areas, between which a quadrangular recess 30 for receiving the quadrangular axis of rotation, not shown, is arranged.
  • the intermediate element 14 is arranged rotationally fixed on the axis of rotation 5.
  • At least the corrugated areas of the intermediate element 14 consist of an elastically deformable and resilient material, so that in this way the additional restoring force is generated.
  • the restoring force generating spring This may be, for example, a coil spring, which is arranged under the operating handle 4 and whose one end cooperates with the housing 1 and the other end with the actuating handle 4.
  • the actuating handle 4 has a receptacle 31, through which the quadrangular axis of rotation 5 is guided. However, this receptacle 31 is widened, so that the operating handle 4 with respect to the axis of rotation has 5 game. Only when the additional restoring force has been applied, which is overcome by the expansion of the receptacle 31 relative to the axis of rotation 5 game overcome and there is a positive connection between the operating handle 4 and the axis of rotation 5.
  • the actuating handle 4 has a region, not shown, with a also not shown triggering device 8 cooperates.
  • each intermediate element 14 consists of two, a torsion enabling elements, which consist for example of plastic.
  • the one end of each element is non-rotatable with the actuating handle 4 and the the other end of each element is rotatably connected via a connecting plate 32 with the axis of rotation 5.
  • the actuating handle 4 has a recess 33, through which the axis of rotation 5 is guided.
  • the recess 33 is so large that upon rotation of the operating handle 4, the rotation axis 5 is not rotated by an interaction of recess 33 and rotation axis 5.
  • the operating handle 4 has no direct connection to the axis of rotation 5.
  • the restoring force generated by the coil spring 3 acts between the housing 1 and the operating handle 4.
  • the restoring force generated by the coil spring 3 is "inoperative" because the operating handle 4 locks is.
  • the additional restoring force presses the butterfly valve 2 against the stop 7.
  • the additional restoring force can be greater than or less than the restoring force or equal to the restoring force.
  • the spiral spring 3 acts between the housing 1 and the connecting plate 32. So that the butterfly valve 2 rests in its open position on the stop 7, the additional restoring force must be at least equal to the restoring force or greater than the restoring force.

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  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Lift Valve (AREA)
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  • Casings For Electric Apparatus (AREA)

Claims (16)

  1. Volet coupe-feu comprenant un boîtier (1) et un clapet d'isolement (2) monté pivotant autour d'un axe de pivotement (23) dans ledit boîtier, notamment au centre par rapport à la section transversale de ce dernier, entre une position d'ouverture et une position de fermeture, sachant qu'une poignée d'actionnement (4) apte à tourner autour d'un axe de rotation (5) qui lui est affecté, disposée à la face extérieure dudit boîtier (1) et coopérant directement ou indirectement avec le clapet d'isolement (2), est prévue pour provoquer le pivotement, c'est-à-dire la tension dudit clapet d'isolement (2) de sa position de fermeture à sa position d'ouverture, en opposition à la force de rappel, sachant qu'il est prévu au moins une butée (7) contre laquelle ledit clapet d'isolement (2) est directement ou indirectement en applique dans sa position d'ouverture, sachant que ledit volet coupe-feu comporte un dispositif de déclenchement (8) qui peut être amené à un emplacement de blocage, peut être mis en action sous l'effet de la chaleur et peut, de la sorte, être transposé automatiquement à un emplacement de libération, et sachant que ladite poignée d'actionnement (4), et donc ledit clapet d'isolement (2) relié à celle-ci, peuvent être consignés à demeure dans la position d'ouverture en opposition à une force de rappel, au moyen dudit dispositif de déclenchement (8) occupant son emplacement de blocage, jusqu'à un emplacement correspondant à la position d'ouverture dudit clapet d'isolement (2), et peuvent pivoter à partir de cet emplacement, sous l'effet de ladite force de rappel agissant sur la poignée d'actionnement (4), jusqu'à un second emplacement correspondant à la position de fermeture dudit clapet d'isolement (2), après mise en action du dispositif de déclenchement (8) accompagnée d'une transposition dudit dispositif de déclenchement (8) à son emplacement de libération, caractérisé par le fait que le matériau constituant la poignée d'actionnement (4), et/ou un élément intermédiaire (14) interposé entre ladite poignée d'actionnement (4) et l'axe de rotation (5), est (sont) réalisé(s) de telle sorte qu'une poursuite du déplacement au-delà de la position d'ouverture du clapet d'isolement (2), en particulier de la rotation de la partie de ladite poignée d'actionnement (4) coopérant avec le dispositif de déclenchement (8), soit autorisée dans le même sens de rotation (flèche 13), en surmontant une force supplémentaire de rappel qui agit sur ledit clapet d'isolement (2) à l'issue d'un verrouillage et qui plaque ledit clapet d'isolement (2) contre la butée (7).
  2. Volet coupe-feu selon la revendication précédente, caractérisé par le fait que la force supplémentaire de rappel est supérieure à la force de rappel devant être appliquée en vue de déplacer le clapet d'isolement (2) de sa position de fermeture à sa position d'ouverture.
  3. Volet coupe-feu selon la revendication 1, caractérisé par le fait que la force supplémentaire de rappel est inférieure ou égale à la force de rappel devant être appliquée en vue de déplacer le clapet d'isolement (2) de sa position de fermeture à sa position d'ouverture.
  4. Volet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que l'axe de pivotement (23) du clapet d'isolement (2), et l'axe de rotation (5) de la poignée d'actionnement (4), sont agencés concentriquement ou avec coïncidence mutuelle, et sont notamment de réalisation monobloc.
  5. Volet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que la poignée d'actionnement (4) est reliée à l'axe de rotation (5) avec assemblage par complémentarité de formes, sachant que ledit assemblage par complémentarité de formes présente du jeu, et que l'exploitation de ce jeu par la force supplémentaire de rappel n'est pas encore autorisée.
  6. Volet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait qu'un accouplement patinant est prévu en tant qu'élément intermédiaire (14).
  7. Volet coupe-feu selon l'une des revendications 1 à 5, caractérisé par le fait que l'élément intermédiaire (14) inclut au moins un ressort (15) dont l'une des extrémités agit indirectement ou directement sur l'axe de rotation (5), et dont l'autre extrémité agit indirectement ou directement sur la poignée d'actionnement (4).
  8. Volet coupe-feu selon la revendication précédente, caractérisé par le fait que l'élément intermédiaire (14) comprend au moins une surface d'appui (18), un contre-appui (19) complémentaire, ainsi qu'au moins un ressort (15), l'axe de rotation (5) étant muni d'au moins une surface d'appui (18) qui fait saillie latéralement par rapport audit axe de rotation (5), est tournée vers ledit axe de rotation (5), et contre laquelle prend appui l'une des extrémités dudit ressort (15) réalisé, de préférence, en tant que ressort de pression et orienté tangentiellement par rapport audit axe de rotation (5), et la poignée d'actionnement (4) étant dotée dudit contre-appui (19) complémentaire, dévolu à l'autre extrémité dudit ressort (15).
  9. Volet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait qu'il est prévu un élément (16) qui recouvre de préférence la poignée d'actionnement (4) de l'extérieur, dans la région de l'axe de rotation (5), est relié audit axe de rotation (5) avec verrouillage rotatif, et est muni d'au moins une partie latérale (17) formant au moins une surface d'appui (18).
  10. Volet coupe-feu selon l'une des revendications 1 à 5, caractérisé par le fait que l'élément intermédiaire (14) présente au moins une région (22) de réalisation élastique, ledit élément intermédiaire (14) étant calé sur l'axe de rotation (5) avec verrouillage rotatif, et ladite région (22) de réalisation élastique agissant indirectement ou directement, en particulier latéralement sur la poignée d'actionnement (4).
  11. Volet coupe-feu selon la revendication précédente, caractérisé par le fait qu'au moins une région (22) est réalisée sous la forme d'une protubérance (27) du type bras, qui s'étend dans le sens radial par rapport à l'axe de rotation (5) et dont l'extrémité libre coopère avec un évidement (28) associé à la poignée d'actionnement (4).
  12. Volet coupe-feu selon la revendication précédente, caractérisé par le fait que l'élément intermédiaire (14) compte deux protubérances (27) de réalisation du type bras, qui s'étendent dans le sens radial et pointent à l'opposé l'une de l'autre, l'extrémité libre de chaque protubérance (27) coopérant avec un évidement (28) associé à la poignée d'actionnement (4).
  13. Volet coupe-feu selon l'une des revendications 1 à 5, caractérisé par le fait que l'élément intermédiaire (14) est réalisé sous la forme d'un élément qui permet une torsion et est relié, d'une part, à l'axe de rotation (5) avec verrouillage rotatif et, d'autre part, à la poignée d'actionnement (4) avec verrouillage rotatif.
  14. Volet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que le clapet d'isolement (2), en applique contre au moins une butée (7) dans la position d'ouverture, est orienté parallèlement à la direction de l'écoulement.
  15. Volet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait qu'au moins une butée (7) est disposée à la face intérieure du boîtier (1).
  16. Volet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait qu'un mécanisme de transmission (24), venant en prise avec le clapet d'isolement (2), est prévu dans le boîtier (1) ; et par le fait qu'au moins une butée (7) est disposée sur ledit clapet d'isolement (2) et/ou sur ledit mécanisme de transmission (24), de préférence du côté dudit mécanisme de transmission (24) qui est tourné vers ledit clapet d'isolement (2).
EP15155350.0A 2014-02-19 2015-02-17 Clapet anti-feu Active EP2910283B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15155350.0A EP2910283B1 (fr) 2014-02-19 2015-02-17 Clapet anti-feu
PL15155350T PL2910283T3 (pl) 2014-02-19 2015-02-17 Klapa przeciwpożarowa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14155828.8A EP2910282B1 (fr) 2014-02-19 2014-02-19 Clapet anti-feu
EP15155350.0A EP2910283B1 (fr) 2014-02-19 2015-02-17 Clapet anti-feu

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EP2910283A1 EP2910283A1 (fr) 2015-08-26
EP2910283B1 true EP2910283B1 (fr) 2018-06-06

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EP14155828.8A Active EP2910282B1 (fr) 2014-02-19 2014-02-19 Clapet anti-feu
EP15155350.0A Active EP2910283B1 (fr) 2014-02-19 2015-02-17 Clapet anti-feu

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EP14155828.8A Active EP2910282B1 (fr) 2014-02-19 2014-02-19 Clapet anti-feu

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EP (2) EP2910282B1 (fr)
DK (2) DK2910282T3 (fr)
ES (2) ES2685818T3 (fr)
PL (2) PL2910282T3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2261153A1 (de) * 1972-12-11 1974-07-04 Nordluft Norddeutsche Ges Fuer Mit einer schwenkbaren, unter der wirkung einer schliesskraft stehenden feuerschutzklappe ausgestattetes einbaugehaeuse fuer lufttechnische anlagen
FR2374053A1 (fr) * 1976-12-14 1978-07-13 Seitha Dispositif pour la manoeuvre a distance d'organes de securite, tels que clapets coupe-feu, trappes de desenfumage
DE4234800A1 (de) * 1992-10-15 1994-04-21 Schako Metallwarenfabrik Luftführungskanal mit einer eingesetzten Brandschutzklappe
FI123082B (fi) * 2009-04-30 2012-10-31 Flaekt Woods Ab Ilmanvaihtokanavan säätöpelti
DE202012104995U1 (de) * 2012-12-14 2013-01-31 Trox Gmbh Brandschutzklappe

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Also Published As

Publication number Publication date
ES2685818T3 (es) 2018-10-11
EP2910282A1 (fr) 2015-08-26
PL2910282T3 (pl) 2018-11-30
PL2910283T3 (pl) 2018-12-31
DK2910282T3 (en) 2018-09-03
ES2686646T3 (es) 2018-10-18
DK2910283T3 (en) 2018-09-03
EP2910283A1 (fr) 2015-08-26
EP2910282B1 (fr) 2018-05-30

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