EP3834892B1 - Clapet de protection contre l'incendie - Google Patents

Clapet de protection contre l'incendie Download PDF

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Publication number
EP3834892B1
EP3834892B1 EP19216150.3A EP19216150A EP3834892B1 EP 3834892 B1 EP3834892 B1 EP 3834892B1 EP 19216150 A EP19216150 A EP 19216150A EP 3834892 B1 EP3834892 B1 EP 3834892B1
Authority
EP
European Patent Office
Prior art keywords
open position
holding
fire damper
drive
butterfly valve
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
EP19216150.3A
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German (de)
English (en)
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EP3834892A1 (fr
Inventor
Martin Mosters
Daniel Massel
Thomas Neubauer
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 EP19216150.3A priority Critical patent/EP3834892B1/fr
Priority to PL19216150.3T priority patent/PL3834892T3/pl
Publication of EP3834892A1 publication Critical patent/EP3834892A1/fr
Application granted granted Critical
Publication of EP3834892B1 publication Critical patent/EP3834892B1/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
    • 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
    • A62C2/242—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts with fusible links

Definitions

  • the invention relates to a fire damper with a, for example, round or square housing and with a butterfly valve blade which is pivotably mounted therein, in particular in the middle of the housing cross section, between an open position and a closed position around an axis of rotation, which moves against the restoring force of a spring element from its closed position into its open position is pivotable, with a holding element being provided to fix the butterfly valve blade in its open position, which in the open position of the butterfly valve blade cooperates with a holding area of a thermally triggered triggering device, the holding area being able to be released from its holding position by heat or the like and automatically moved into its release position, wherein the butterfly valve blade is held in its open position by the interaction of the holding element and the holding area located in the holding position, and wherein after the triggering device has been triggered and thus after the holding area has been moved from its holding position to its release position, the butterfly valve blade is displaced into its position by the restoring force of the spring element Closed position occurs.
  • a fire damper is known.
  • a hand-operated operating lever is provided on the outside of the housing to move the shut-off flap leaf of the fire protection flaps described above from its closed position to its open position against the restoring force of the spring element.
  • the actuating lever interacts with the holding area of the triggering device, which includes a fusible link.
  • Appropriate fire dampers are working purely mechanical. In the event of a fire, the holding area is suddenly moved from its holding position to its release position after the fusible solder, which is located in the housing and melts, melts. As a result, the butterfly valve blade is suddenly shifted into its closed position by the restoring force of the spring element.
  • the object of the invention is to avoid the aforementioned disadvantages and to provide a fire damper whose butterfly valve blade can also, for example, be moved slowly and in a controlled manner from its open position to its closed position.
  • the fire damper has a drive arranged on the outside of the housing for displacing the butterfly valve blade between its closed position and its open position and vice versa, which is directly or indirectly connected to the butterfly valve blade, and that for the remotely controllable release of the fixation between the Holding area of the triggering device and the holding element for the subsequent displacement of the butterfly valve blade from its open position to its closed position caused by the drive or the spring element either the area of the holding element that interacts with the holding area of the triggering device or the holding area of the triggering device that interacts with the holding element can be displaced by means of a remotely controllable release device, the speed of displacement of the butterfly valve blade from its open position into its closed position being determinable by the drive.
  • the torque acting on the butterfly valve blade and generated by the drive is greater than the restoring force generated by the spring element.
  • the fire damper can have a continuous shaft, with the drive being plugged onto one of the two ends of the shaft.
  • two shaft stubs can also be provided, with the drive being plugged onto one of the two shaft stubs.
  • the drive acts directly on the butterfly valve blade.
  • the drive it is also possible for the drive to be connected to the butterfly valve blade indirectly via a linkage, which is preferably arranged in the housing.
  • the design according to the invention allows, for example, a routine check of the functionality of the fire damper from a distance, for example by the building management system.
  • Remotely controllable means that the corresponding displacement cannot be initiated manually on the fire damper itself, but from a remote location, for example from another room.
  • the position of the butterfly valve blade can be changed as desired, for example by the building management system, ie the butterfly valve blade can be moved from its open position to its closed position and back slowly and in a controlled manner. In addition to the open position and the closed position, any intermediate position of the butterfly valve blade can also be approached.
  • the drive is selected in terms of its torque so that the torque generated by the drive is greater than the restoring force of the spring element acting on the butterfly valve blade. This means that the butterfly valve blade can be moved slowly and controlled into its open position and equally slowly and controlled by the drive again into its closed position.
  • the drive can be used to open and, if necessary, also to close the butterfly valve blade, while the thermal triggering device causes sudden displacement in the event of a fire.
  • the remotely controllable release device enables the butterfly valve blade to be opened and closed remotely.
  • the drive and the remotely controllable release device can also be easily retrofitted to a known hand-operated fire damper, so that a known hand-operated fire damper can be converted to the design according to the invention. Retrofitting is easy because the hand-operated operating lever, for example, simply needs to be replaced by the drive and the remotely controllable release device needs to be installed.
  • the butterfly valve blade Due to the intrinsic safety of the mechanics, the butterfly valve blade remains in its open position even when the drive is de-energized. This proves to be an advantage over solutions known in the prior art, for example in the construction phase of a construction project. During this time, there is sometimes a desire to open fire dampers in order to ventilate or ventilate the building. Due to the existing thermal release device nevertheless ensures that in the event of a fire, the butterfly valve blade is moved into its closed position.
  • the release device can be an electrically operating, a hydraulically operating or a pneumatically operating device.
  • the release device can cause a displacement in both directions. However, it is also entirely possible that the release device only enables a displacement in one direction against a restoring force and that the displacement in the opposite direction is caused by the restoring force.
  • the release device can be designed as an electromagnet.
  • the area of the holding element that interacts with the holding area of the triggering device can be designed as a locking bar.
  • the locking bar can be rigidly connected to the holding element.
  • a fire damper with this design is as follows: For the purpose of fixing the butterfly valve blade in its open position, when the drive is rotated in the opening direction, the locking bolt slides along the guide section, causing an increasing displacement of the labyrinth against the spring force generated by the spring and thus the distance between the labyrinth and the housing increases. After a further displacement of the locking bolt in the opening direction, after the locking bolt has slid completely along the guide section, the labyrinth and thus also the holding area are moved by the spring in the direction of the housing, producing contact between the locking bolt and the holding area for fixing the butterfly valve blade in its position Open position shifted.
  • the locking bolt can initially be moved further in the opening direction by the drive until the locking bolt is no longer in contact with the contact surface, and the labyrinth is then displaced further towards the housing by the spring, so that the locking bolt is in reverse and the butterfly valve blade can be moved into its closed position after changing the direction of rotation of the drive.
  • the locking bar and the labyrinth With such a design only one drive is required.
  • the butterfly valve blade can be both closed and opened using the drive.
  • a freewheel device which has two transmission elements that are positively connected to one another and enable freewheeling, the freewheel device being designed in such a way that when the butterfly valve blade is suddenly displaced by the spring element after the triggering device has been triggered from its open position the drive is decoupled in its closed position.
  • the freewheel device represents a positive clutch with a freewheel, which is arranged between the drive or a possibly provided gear on the one hand and the butterfly valve blade on the other hand.
  • the length of the freewheel produced by the freewheel device is approximately or equal to a quarter turn, i.e. H. the displacement path of the butterfly valve blade from its open position to its closed position.
  • the freewheel device means that in the event of a fire, when the butterfly valve blade is suddenly displaced by the spring element from its open position to its closed position after the triggering device has been triggered, the spring element does not have to move the drive and possibly the gearbox arranged between the butterfly valve blade and the drive. Rather, the drive and possibly also the transmission are preferably decoupled over the entire displacement path from the open position to the closed position.
  • one transmission element can have a receiving area having a circumferential wall, an elongated hole extending approximately over a quarter of the circumference of the wall being provided in the wall, and the other transmission element can comprise a transmission section which projects into the receiving area and has a laterally projecting pin , wherein the pin projects into the elongated hole and the receiving area is dimensioned such that at least rotation of the transmission section over the length of the elongated hole is possible in the receiving area.
  • the freewheel device can be designed as a claw clutch, with the one transmission element being a driver disk with at least one, preferably two or more, evenly over the circumference of the one transmission element arranged and pointing in the direction of the other transmission element and the other transmission element comprises a driver disk with at least one, preferably two or more claws arranged evenly over the circumference of the other transmission element and pointing in the direction of the one transmission element, wherein the claw (s ) of the two driving disks interlock.
  • each driver disk comprises two claws
  • each driver disk has two spaces. There is a gap between two adjacent claws of a drive plate. A corresponding claw on the other driver disk engages in a gap.
  • the claws are dimensioned in terms of their width based on the gap formed in such a way that a freewheel is created between the two driving disks, which corresponds approximately or equal to a quarter turn of the butterfly valve blade. This intervention makes it possible to transfer torque by turning.
  • a claw coupling also represents a form-fitting coupling.
  • the release device can be attached to the holding element or integrated into the holding element. In such a configuration, the release device is part of the holding element. If the area of the holding element that interacts with the holding area of the triggering device is designed as a locking bar, the release device actuates the locking bar.
  • the drive can be designed as an electrically operating drive. Of course, other configurations are also possible. For example, it can also be a pneumatically or hydraulically operating drive.
  • the drive can be designed as an idle motor, the direction of displacement being such that the butterfly valve blade can be moved from its closed position to its open position by means of the drive.
  • An idle motor is a drive that only allows displacement in one direction of rotation. At least partial decoupling takes place in the opposite direction of rotation.
  • the drive enables displacement in this respect of the butterfly valve blade from its closed position to its open position. After the remotely controllable release of the fixation between the holding area of the triggering device and the holding element or in the event of a fire after the melting of the fusible solder, the butterfly valve blade is displaced into its closed position exclusively by the restoring force generated by the spring element, while the drive is decoupled.
  • the drive can be connected directly or indirectly to the butterfly valve blade via a gear.
  • a gear ratio in the transmission even when using a drive with a lower power, the butterfly valve blade can be moved slowly and in a controlled manner by the drive with the restoring force acting on the butterfly valve blade.
  • the drive can have a rotation angle between approximately 90° and 100°. With such a configuration, stops are not necessarily required against which the butterfly valve blade rests in its open and closed positions. Of course, other drives such as 360° drives are also possible.
  • the fire damper can include an energy storage device. When voltage is present, the energy storage device is charged, so that a remotely controllable displacement of the butterfly valve blade is still possible even in the event of a voltage interruption.
  • the energy storage can be, for example, a power cap.
  • a power cap includes at least one rechargeable capacitor.
  • a device which is set up to move the butterfly valve blade from its open position to its closed position so far opposite to the later direction of displacement, ie from the open position to the closed position, beyond the open position of the butterfly valve blade, before the remotely controllable displacement of the butterfly valve blade to be relocated so that the fixation between the holding area and the holding element can be released without load by remotely triggering the release device.
  • the device can, for example, be the drive of the butterfly valve blade, which initially moves the butterfly valve blade against the later direction of displacement, i.e. H. from the open position to the closed position, further shifted.
  • At least one stop can be provided, against which the butterfly valve blade rests directly or indirectly in its open position.
  • Figure 1 is a partial area of a fire damper with a housing 1 and with a shut-off valve blade 2 pivotally mounted therein in the middle of the housing cross-section between an open position and a closed position about an axis of rotation.
  • the housing 1 has a round cross section. For the sake of clarity, only a partial area of the housing 1 is shown.
  • a shaft (not shown) is provided, which penetrates the butterfly valve blade 2 and whose two ends are rotatably mounted in the housing 1 in a suitable bearing point.
  • a recess 3 is provided in the housing 1 at a distance from the butterfly valve blade 2, through which a shaft 4 is guided.
  • the end of the shaft 4 protruding from the housing 1 is designed as a square.
  • a lever 5 engages on the end of the shaft 4 located inside the housing 1 and is fastened in a rotationally fixed manner relative to the shaft 4.
  • the end of the lever 5 is rotatably connected to one end of a rod 6, while the other end of the rod 6 is rotatably attached to the butterfly valve blade 2.
  • the butterfly valve blade 2 can be moved out of its position by rotating the shaft 4 Figure 1 in the closed position shown in Figure 2 shown open position can be moved.
  • the butterfly valve blade 2 can be pivoted from its closed position into its open position against the restoring force of a spring element 7.
  • the spring element 7 is a spiral spring. One end 8 of the spiral spring is inserted into an opening 9 of the housing 1, while the other end of the spiral spring is attached to the shaft 4 in a rotationally fixed manner.
  • a holding element 10 is provided on the end of the shaft 4 protruding from the housing 1 to fix the butterfly valve blade 2 in its open position.
  • the holding element 10 interacts with a holding area 11 of a thermally triggered triggering device 12.
  • the one with the holding area 11 of the trigger device 12 interacting area of the holding element 10 has a locking bar 13 that can be moved by means of a remotely controllable release device 28.
  • the locking bar 13 can be displaced in translation and in the radial direction relative to the holding element 10 in relation to the axis of rotation of the holding element 10 formed by the shaft 4 by means of the release device 28.
  • the release device 28 is designed as an electrically operating device, such as an electromagnet.
  • the locking bolt 13 is in an extended state. In this position, the locking bar 13 of the holding element 10 interacts with the holding area 11.
  • the locking bolt 13 is in its retracted position.
  • the displacement of the locking bolt 13 in the direction of the arrow in the Figures 4 and 6 is carried out by the release device 28.
  • the displacement in the opposite direction, ie against the arrow 14, can also be effected by the release device 28.
  • a first retaining pin 23 is attached to the end of the tube 16 located in the housing 1.
  • a second retaining pin 24 is provided on the metal bolt 18, which is slidably arranged in the tube 16.
  • the retaining pin 24 formed on the metal bolt 18 passes through the elongated hole 17.
  • a spiral spring 25 is arranged between the two retaining pins 23, 24.
  • the thermally triggerable triggering device 12 further comprises a fusible link 26.
  • the fusible link 26 interacts with the two retaining pins 23, 24, so that the spiral spring 25, as shown in Fig. 7 is shown, is compressed by the fusible link 26 and thus tensioned.
  • the fire damper has a drive which is connected directly or indirectly to the butterfly valve blade 2 and is arranged on the outside of the housing 1 for displacing the butterfly valve blade 2 between its closed position and its open position and vice versa.
  • the drive is not shown in the figures.
  • a mounting plate for example, on which the drive is attached, can be mounted on the outside of the housing 1.
  • the drive which is designed, for example, as an electrically operating drive and, for example, has a rotation angle between has approximately 90 ° and 100 °, is, for example, plugged onto the free end of the shaft 4 or connected to the end of the shaft 4 in another way.
  • the drive is preferably connected to the free end of the shaft 4 via a gear.
  • the fixation between the holding area 11 and the holding element 10 is thus released, so that the butterfly valve blade 2 can be displaced into its closed position by the drive or by the spring element 7.
  • the speed of displacement of the butterfly valve blade 2 from its open position to its closed position can be determined by the drive.
  • the drive can also serve as a device which is set up to move the butterfly valve blade 2 from its open position to its closed position so far against the later direction of displacement beyond the open position of the butterfly valve blade 2 before the remotely controllable displacement of the butterfly valve blade 2 , so that the fixation between the holding area 11 and the locking bolt 13 can be released without load by remotely triggering the release device 28.
  • Fig. 9 shows an oblique view of the mechanics of a partially shown fire damper according to the invention according to a second exemplary embodiment.
  • the holding element 10 is provided on the end of the shaft 4 protruding from the housing 1 to fix the butterfly valve blade 2 in its open position.
  • the holding element 10 has a manual operating handle 38 and the locking bar 13, which cooperates with the holding area 11 of the triggering device 12.
  • the locking bar 13 is rigidly connected to the holding element 10 in this exemplary embodiment.
  • the butterfly valve blade 2 is located in Fig. 9 in its closed position. The locking bar 13 therefore does not interact with the triggering device 12.
  • the fire damper has a drive 29 and a gear 30.
  • the drive 29 and the gear 30 are attached to the outside of the housing 1 by means of a holding structure 44.
  • the transmission 30 has, for example, the sectional view in Figure 10 can be seen, a receiving area having a circumferential wall 39.
  • a freewheel device which has two transmission elements that are positively connected to one another and enable freewheeling, the freewheel device being designed in such a way that when the butterfly valve blade 2 is suddenly displaced by the spring element 7 after the triggering device 12 has been triggered the drive 29 is decoupled from its open position to its closed position.
  • One transmission element is with shaft 4 and thus also connected to the butterfly valve blade 2 and the other transmission element to the gearbox 30 and thus also to the drive 29.
  • one transmission element comprises a receiving area having a circumferential wall 39, an elongated hole 35 extending approximately over a quarter of the circumference of the wall 39 being provided in the wall 39, and the other transmission element having a transmission section projecting into the receiving area with a laterally protruding pin 34, the pin 34 protruding into the elongated hole 35.
  • the receiving area is dimensioned such that at least one rotation of the transmission section over the length of the elongated hole 35 is possible in the receiving area.
  • the transmission element which includes the transmission section with the laterally projecting pin 34, is formed by the end of the shaft 4 protruding from the housing 1.
  • the shaft 4 has a laterally projecting pin 34 in the area of its end protruding from the housing 1. If the unit consisting of drive 29 and gear 30 is plugged onto the end of shaft 4, the pin 34 is located in the elongated hole 35.
  • the receiving opening formed by the wall 39 of the receiving area is dimensioned such that the end of the shaft 4 can rotate freely in the receiving opening.
  • the holding element 10 is only then rotated until the pin 34 is connected to the other End of the slot 35 comes into contact. Only from this point on is activated of the drive 29, the holding element 10 and thus also the butterfly valve blade 2 are displaced.
  • Fig. 10 shows a section through the mechanics of the fire damper after Fig. 9 , while Fig. 11 a cut in the direction "XX" in Fig. 10 shows.
  • the handle element 20 has a kind of labyrinth for guiding the locking bar 13 provided on the holding element 10.
  • the labyrinth allows the butterfly valve blade 2 to be fixed in the open position or released from the open position.
  • the labyrinth includes a guide section 32, the holding area 11, a contact surface 33 and a return 42.
  • the labyrinth is part of the handle element 20. In this respect, the labyrinth is pressed in the direction of the housing 1 by the spring 21 acting on the handle element 20.
  • the guide section 32 is designed as a straight line and is aligned obliquely.
  • the guide section 32 can also be curved, for example.
  • the guide section 32 blocks the return 42 in the opening direction (arrow 31).
  • the return 42 is arranged at a greater distance than the guide section 32 from the housing 1 and is therefore closer to the thickening 19.
  • At least the part of the guide section 32 that blocks the return 42 in the opening direction (arrow 31) is against a spring force against the opening direction ( Arrow 31) can be moved.
  • the guide section 32 can be pivoted about a pivot point 43 against a spring force in the direction of arrow 37.
  • the holding area 11 adjoins the guide section 32 in the opening direction (arrow 31) and is arranged set back from the guide section 32.
  • the holding area 11 is aligned parallel to the shaft 4 in the exemplary embodiment shown.
  • the locking bar 13 lies against the holding area 11.
  • the guide section 32 is located in front of the holding area 11.
  • the contact surface 33 delimits the holding area 11 on the side edge, which is arranged opposite the side edge to which the guide section 32 is connected.
  • the spring 21 presses the handle element 20 in the direction of the housing 1. This means that the contact surface 33 is pressed laterally against the locking bolt 13.
  • the contact surface 33 thus prevents an unwanted loosening of the fixation between the locking bolt 13 and the holding area 11 in the open position due to the handle element 20 being displaced too far by the spring 21 acting on the handle element 20 in the direction of the housing 1.
  • Fig. 12a-e is the displacement process of the butterfly valve blade 2 manually by means of the manual operating handle 38 or by means of the remotely controllable release device 28 from its closed position (a) to its open position (c) and the subsequent displacement in turn by means of the remotely controllable release device 28 from its open position (c ) in its closed position (e) when designing the fire damper according to Fig. 9 to 11 shown.
  • the drive 29 has already shifted the butterfly valve blade 2 from the closed position in the opening direction (arrow 31) to just before its open position.
  • the opening direction is understood to mean the direction in which the butterfly valve blade 2 is moved from its closed position to its open position. Since the locking bolt 13 is mechanically connected to the butterfly valve blade 2, the locking bolt 13 is also in the opening direction (arrow 31) has been rotated. In this position, the locking bar 13 already touches the obliquely aligned guide section 32.
  • the drive 29 In the open position, the drive 29 is stopped and can be de-energized. If partial freewheeling is desired, the drive 29 is turned back against the opening direction (arrow 31) until the pin 34, which is formed on the shaft 4, is at the other end of the elongated hole 35.
  • a partial freewheel offers the advantage that when the butterfly valve blade 2 is suddenly closed in the event of a fire, the torque generated by the drive 29 does not have to be overcome by the spring element 7.
  • the drive 29 moves the butterfly valve blade 2 and thus also the locking bolt 13 a little more in the opening direction (arrow 31) until the locking bolt 13 is no longer in contact with the contact surface 33.
  • Fig. 12d shown.
  • the spring 21 now displaces the handle element 20 against the arrow 22 further in the direction of the base plate 15 and thus the housing 1. This releases the locking, so that the displacement path is free against the opening direction (arrow 31) and thus in the direction of the arrow 36 is.
  • the direction of rotation of the drive 29 is changed so that the locking bolt 13 is displaced in the return 42 in the direction of the arrow 36. Since the guide section 32 can be pivoted about the pivot point 43 against a spring force in the direction of the arrow 37, the guide section 32 is pushed away by the locking bar 13 during the displacement in the direction of the arrow 36 against a restoring force in the direction of the arrow 37, so that the locking bar is thereby 13 can pass through the guide section 32 and go through the return line 42 completely. This process is in the Fig. 15a to c shown. If the locking bolt 13 is moved further in the direction of arrow 36 ( Fig. 15c ), the drive 29 closes the butterfly valve blade 2 in a controlled manner.
  • the guide section 32 is pivoted back into its original position against the arrow 37 by the spring force after passing the locking bolt 13.
  • the guide section 32 closes the return 42 as seen against the arrow 36.
  • the locking bolt 13 can be moved to the Figures 12 a to c The manner described can be brought back into contact with the holding area 11 for the purpose of fixing the butterfly valve blade 2 in its open position.
  • Fig. 13 ad show the displacement of the butterfly valve blade 2 from its open position to its closed position in the event of a fire when designing the fire damper according to Fig. 9 to 12 .
  • the shift from the open position to the closed position can also be done manually for test purposes by lifting the handle element 20 in the direction of arrow 22.
  • the locking bar 13 rests on the holding area 11. If desired, the partial freewheeling of the drive 29 described above can have been generated.
  • the fusible link 26 melts or tears.
  • the spiral spring 25 suddenly displaces the metal bolt 18 and thus also the handle element 20 in the direction of the arrow 22 ( Fig. 13b ).
  • the locking bar 13 is released from the holding area 11.
  • the locking bar 13 is released.
  • the spring element 7 does not have to overcome the torque generated by the drive 29 in the event of a fire when closing the butterfly valve blade 2, since the pin 34 can be freely displaced in the elongated hole 35 to the opposite end. If there is no partial freewheeling of the drive 29, the spring element 7 must overcome the torque generated by the drive 29 when closing the butterfly valve blade 2.
  • the locking bar 13 remains in a plane at all times of displacement, which is indicated by the dash-dotted line 41.
  • the distance between the locking bar 13 and the housing 1 always remains unchanged. While the locking bar 13 is guided through the labyrinth, the handle element 20 is only displaced in the direction of the arrow 22 or against the direction of the arrow 22. This changes the distance between the handle element 20 and the housing 1, while the locking bar 13 is moved through the labyrinth is moved.

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Claims (16)

  1. Clapet coupe-feu muni d'un boîtier (1) et d'un volet de blocage (2) qui est logé dans ce dernier, en particulier centralement par rapport à la section transversale dudit boîtier, est monté à pivotement autour d'un axe de rotation entre une position d'ouverture et une position de fermeture, et peut pivoter de sa position de fermeture à sa position d'ouverture en opposition à la force de rappel d'un élément élastique (7), sachant que, pour consigner ledit volet de blocage (2) à demeure dans sa position d'ouverture, il est prévu un élément de retenue (10) coopérant, dans ladite position d'ouverture dudit volet de blocage (2), avec une zone de maintien (11) d'un dispositif de déclenchement (12) activable thermiquement, laquelle zone de maintien (11) peut être désengagée de son emplacement de maintien sous l'action de la chaleur ou d'un phénomène analogue, et peut être déplacée automatiquement vers son emplacement de libération, sachant que le maintien du volet de blocage (2) dans sa position d'ouverture a lieu sous l'effet de la coopération dudit élément de retenue (10) et de ladite zone de maintien (11) occupant l'emplacement de maintien, et sachant que le déplacement dudit volet de blocage (2) vers sa position de fermeture, sous l'action de la force de rappel de l'élément élastique (7), s'opère à l'issue de l'activation du dispositif de déclenchement (12), et donc à l'issue du déplacement de ladite zone de maintien (11) de son emplacement de maintien à son emplacement de libération, caractérisé par le fait que, pour déplacer le volet de blocage (2) entre sa position de fermeture et sa position d'ouverture, et inversement, ledit clapet coupe-feu est équipé d'un entraînement (29) relié directement ou indirectement audit volet de blocage (2) et implanté à la face extérieure du boîtier (1) ; et par le fait que pour gouverner la neutralisation, pilotable à distance, de l'assujettissement entre la zone de maintien (11) du dispositif de déclenchement (12) et l'élément de retenue (10), en vue du déplacement consécutif dudit volet de blocage (2) de sa position d'ouverture à sa position de fermeture, provoqué par l'entraînement (29) ou par l'élément élastique (7),
    soit la région de l'élément de retenue (10) qui coopère avec la zone de maintien (11) du dispositif de déclenchement (12),
    soit ladite zone de maintien (11) dudit dispositif de déclenchement (12) qui coopère avec ledit élément de retenue (10)
    peut être déplacée au moyen d'un dispositif de libération (28) pilotable à distance, sachant que la vitesse du déplacement dudit volet de blocage (2), de sa position d'ouverture à sa position de fermeture, peut être déterminée par l'intermédiaire de l'entraînement (29).
  2. Clapet coupe-feu selon la revendication précédente, caractérisé par le fait que le dispositif de libération (28) est un dispositif à fonctionnement électrique, à fonctionnement hydraulique ou à fonctionnement pneumatique.
  3. Clapet coupe-feu selon la revendication précédente, caractérisé par le fait que le dispositif de libération (28) est conçu sous la forme d'un électro-aimant.
  4. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que la région de l'élément de retenue (10) qui coopère avec la zone de maintien (11) du dispositif de déclenchement (12) est conçue sous la forme d'un loquet de verrouillage (13).
  5. Clapet coupe-feu selon la revendication précédente, caractérisé par le fait que le dispositif de libération (28) est formé par l'entraînement (29) ; et par le fait qu'il est prévu un labyrinthe qui est associé au dispositif de déclenchement (12), qui est conçu pour guider le loquet de verrouillage (13) en vue de consigner le volet de blocage (2) à demeure dans sa position d'ouverture et en vue de neutraliser la consignation à demeure dudit volet de blocage (2) pour lui faire quitter sa position d'ouverture, et qui est pourvu d'un tronçon de guidage (32), de la zone de maintien (11), d'une surface d'appui (33) et d'un inverseur de marche (42),
    - sachant que le tronçon de guidage (32) est orienté à l'oblique ou est de réalisation courbe et bloque l'inverseur de marche (42) dans la direction d'ouverture par dévissage (flèche 31), au moins la partie dudit tronçon de guidage (32), qui bloque ledit inverseur de marche (42) dans la direction d'ouverture par dévissage (flèche 31), pouvant être déplacée, de préférence animée d'un pivotement en opposition à une force élastique, en sens inverse de ladite direction d'ouverture par dévissage (flèche 31),
    - sachant que la zone de maintien (11) se rattache audit tronçon de guidage (32) dans la direction d'ouverture par dévissage (flèche 31) et est disposée en retrait par rapport audit tronçon de guidage (32),
    - sachant que la surface d'appui (33) délimite ladite zone de maintien (11) au niveau de l'arête latérale située en vis-à-vis de l'arête latérale à laquelle le tronçon de guidage (32) se rattache,
    - sachant qu'il est prévu au moins un ressort (21) pressant le labyrinthe dans la direction du boîtier (1)
    de sorte que, lors d'une rotation de l'entraînement (29) dans la direction d'ouverture par dévissage (flèche 31) suite au glissement du loquet de verrouillage (13) le long du tronçon de guidage (32), il s'opère un déplacement croissant du labyrinthe en opposition à la force élastique engendrée par le ressort (21), et donc un accroissement de la distance entre ledit labyrinthe et le boîtier (1) ; qu'après une poursuite du déplacement du loquet de verrouillage (13) dans la direction d'ouverture par dévissage (flèche 31), ledit labyrinthe, et donc également la zone de maintien (11), sont déplacés par ledit ressort (21) dans la direction dudit boîtier (1) en instaurant un contact entre ledit loquet de verrouillage (13) et ladite zone de maintien (11), en vue de consigner le volet de blocage (2) à demeure dans sa position d'ouverture ; et que, pour neutraliser la consignation à demeure dudit volet de blocage (2), ledit loquet de verrouillage (13) peut, dans un premier temps, être déplacé davantage par l'entraînement (29) dans la direction d'ouverture par dévissage (flèche 31), jusqu'à ce que ledit loquet de verrouillage (13) ne soit plus en contact avec la surface d'appui (33), et que ledit labyrinthe soit ensuite déplacé davantage dans la direction dudit boîtier (1), par ledit ressort (21), de façon telle que ledit loquet de verrouillage (13) se trouve dans l'inverseur de marche (42), et que ledit volet de blocage (2) puisse être déplacé vers sa position de fermeture après modification de la direction de rotation dudit entraînement (29).
  6. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait qu'un dispositif à roue libre, muni de deux éléments de transmission reliés l'un à l'autre par complémentarité de formes et permettant un mode roue libre, est prévu entre l'entraînement (29) et le volet de blocage (2), lequel dispositif à roue libre est conçu de telle sorte que, lors du déplacement brusque dudit volet de blocage (2) de sa position d'ouverture à sa position de fermeture, sous l'action de l'élément élastique (7), ledit entraînement (29) soit découplé après activation du dispositif de déclenchement (12).
  7. Clapet coupe-feu selon la revendication précédente, caractérisé par le fait que l'un des éléments de transmission comporte une zone réceptrice dotée d'une paroi périphérique (39), un trou oblong (35), s'étendant sensiblement sur un quart du pourtour de ladite paroi (39), étant prévu dans ladite paroi (39), et l'autre élément de transmission inclut un tronçon de transmission pénétrant dans ladite zone réceptrice et pourvu d'un téton (34) saillant latéralement, lequel téton (34) pénètre dans ledit trou oblong (35), et ladite zone réceptrice est dimensionnée de telle manière qu'au moins une rotation dudit tronçon de transmission soit possible sur la longueur dudit trou oblong (35) dans ladite zone réceptrice.
  8. Clapet coupe-feu selon la revendication 6, caractérisé par le fait que le dispositif à roue libre est conçu sous la forme d'un accouplement à griffes, sachant que l'un des éléments de transmission inclut un disque d'entraînement comprenant au moins une griffe, de préférence des griffes au nombre de deux ou plus, uniformément réparties sur le pourtour de l'un des éléments de transmission et pointant dans la direction de l'autre élément de transmission, et que l'autre élément de transmission est doté d'un disque d'entraînement comportant au moins une griffe, de préférence des griffes au nombre de deux ou plus, uniformément réparties sur le pourtour dudit autre élément de transmission et pointant dans la direction de l'un des éléments de transmission, sachant que la (les) griffe(s) des deux disques d'entraînement s'imbriquent mutuellement.
  9. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que le dispositif de libération (28) est fixé à l'élément de retenue (10) ou intégré dans ledit élément de retenue (10).
  10. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que l'entraînement (29) est conçu sous la forme d'un entraînement (29) à fonctionnement électrique.
  11. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que l'entraînement (29) est conçu sous la forme d'un moteur à marche au ralenti, la direction de déplacement étant telle que le volet de blocage (2) puisse être déplacé de sa position de fermeture à sa position d'ouverture au moyen dudit entraînement (29).
  12. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que l'entraînement (29) est relié directement ou indirectement au volet de blocage (2) par l'intermédiaire d'une transmission (30).
  13. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que l'entraînement (29) présente un angle de rotation compris entre environ 90° et 100°.
  14. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par le fait que ledit clapet coupe-feu inclut un accumulateur d'énergie.
  15. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par la présence d'un dispositif agencé de telle sorte que, préalablement au déplacement du volet de blocage (2) de sa position d'ouverture à sa position de fermeture, pilotable à distance, ledit volet de blocage (2) puisse être déplacé en sens inverse de la direction de déplacement ultérieure, au-delà de ladite position d'ouverture du volet de blocage (2), d'une course telle que l'assujettissement entre la zone de maintien (11) et l'élément de retenue (10) puisse être neutralisé, avec absence de charge, par activation à distance du dispositif de libération (28).
  16. Clapet coupe-feu selon l'une des revendications précédentes, caractérisé par la présence d'au moins une butée sur laquelle le volet de blocage (2), occupant sa position d'ouverture, est directement ou indirectement en applique.
EP19216150.3A 2019-12-13 2019-12-13 Clapet de protection contre l'incendie Active EP3834892B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19216150.3A EP3834892B1 (fr) 2019-12-13 2019-12-13 Clapet de protection contre l'incendie
PL19216150.3T PL3834892T3 (pl) 2019-12-13 2019-12-13 Klapa przeciwpożarowa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19216150.3A EP3834892B1 (fr) 2019-12-13 2019-12-13 Clapet de protection contre l'incendie

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EP3834892A1 EP3834892A1 (fr) 2021-06-16
EP3834892B1 true EP3834892B1 (fr) 2023-11-22

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3636323A1 (fr) * 2018-10-11 2020-04-15 Siemens Schweiz AG Dispositif de blocage pour un battant coupe-feu, système de dispositifs de blocage et procédé de blocage d'un dispositif d'entraînement
DE102022124302A1 (de) 2022-09-21 2024-03-21 Trox Gmbh Verfahren zur Steuerung einer in einem Luftkanal einer raumlufttechnischen Anlage, vorzugsweise in einem als Abluftkanal oder als Fortluftkanal einer gewerblichen Küche ausgebildeten Luftkanal einer raumlufttechnischen Anlage, installierten Brandschutzklappe sowie Brandschutzklappe

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005043109A1 (de) * 2005-09-10 2007-03-29 Werner Wildeboer Auslöseeinrichtung zum Auslösen zumindest eines eine Leitung eines lufttechnischen Systems verschließenden Absperrelementes
DE202012104995U1 (de) * 2012-12-14 2013-01-31 Trox Gmbh Brandschutzklappe

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EP3834892A1 (fr) 2021-06-16

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