EP4253662A1 - Fluid retention device - Google Patents

Abstract

A device (1) for retaining a fluid is described with a floating folding bulkhead (4) which is pivotably mounted on a folding bulkhead receptacle (3) about a horizontal pivot axis (2) between a lying standby position and a standing shut-off position, which in its standby position is trough-shaped designed folding bulkhead receptacle (3) is used and in order to set up the folding bulkhead (4) in the shut-off position, at least one actuating drive (5), in particular a first gas pressure spring, acting at one end on the folding bulkhead (4) and at the other end on the folding bulkhead receptacle (3), is provided. In order to create advantageous installation conditions, it is proposed that a knee lever (6) is provided to support the lifting of the folding bulkhead (4) from the ready position, which is pivotally mounted at both ends in the area of the folding bulkhead receptacle (3) and whose knee (7) is used for lifting of the hinged bulkhead (4) is moved from the ready position against a contact surface (8) of the hinged bulkhead (4).

Description

The invention relates to a device for retaining a fluid with a floating folding bulkhead which is pivotably mounted on a folding bulkhead receptacle about a horizontal pivot axis between a lying standby position and a standing shut-off position, which in its ready position is inserted into the trough-shaped folding bulkhead receptacle and is used to set up the folding bulkhead At least one actuating drive, in particular a first gas pressure spring, is provided in the shut-off position, acting at one end on the folding bulkhead and at the other end on the folding bulkhead receptacle.

Such devices serve as flood protection or as a fire-fighting water barrier and are, for example, from EP 3922773 A1 , the AT516309 A2 , the KR101368881B1 , the US 4,377,352 A , the DE 19651389 A1 , the AT 16289 U1 and the EP 0754822 A1 known. In the standby position, such folding bulkheads lie on the floor. As the water level rises, floating bodies ensure that the hinged bulkhead is raised up to its shut-off position, into which it is moved and held there by the water pressing against the bulkhead. In the shut-off position, the bulkhead must be appropriately supported against the water pressure. This can be achieved, for example, by the hinged bulkhead holder, by supporting pillars, by masonry or the like. To set up and hold the folding bulkhead in the shut-off position, an actuating drive, in particular at least one gas pressure spring, which acts on the folding bulkhead at one end and at the other end on the folding bulkhead receptacle, can be provided.

In the event of flooding, especially occasional floods, mobile flood dams are also used. In particularly endangered zones with a short warning time, extendable dam bodies can also be provided, which consist of a lowered dam body receptacle, The standby position must be converted into an embankment layer that is raised upwards from the dam body in order to hold back the floodwater on the retention side and to avoid flooding of an adjacent area ( EP 1 586 707 A2 , NL 9201601 A , EP 841 436 A2 and DE 10241258 A1 ). Known extendable dam bodies use either floating bodies as adjustment means or adjustment means in the form of complex mechanical, hydraulic or pneumatic constructions to move the dam body between the recessed standby position and the insulation layer raised upwards from the dam body receptacle.

Compared to permanent flood protection with dikes, such dam devices with adjustable bulkheads have the advantage that they only have a barrier effect when it is actually needed. In addition, such devices can be used to secure passages through dikes, barriers or the like. It can also be used as an extinguishing water barrier to protect a limited area, for example an industrial hall or an industrial site, against the escape of extinguishing water. The dam bodies can be guided laterally in appropriate guides, which are in supports, dikes, concrete bodies and much more. A. can be arranged. If hinged bulkheads are provided in passages, the structural means that laterally limit the passage can support the bulkhead in its shut-off position to ensure the safe transfer of water pressure.

A folding bulkhead of the aforementioned type can be arranged in a dike body, in passages through gates, dikes, barriers, buildings or the like. In the standby position, the hinged bulkhead lies on the floor. In this position, the folding bulkhead located at ground level can be easily accessed and even driven over by vehicles.

The invention is therefore based on the object of creating a device for retaining a fluid, in particular water or extinguishing agent, of the type described at the beginning, which can be installed at a low installation height Standby position is particularly simple and functionally reliable. The hinged bulkhead should trigger automatically if necessary, be fail-safe and only pose a particularly low risk of injury.

The invention solves the problem in that a knee lever is provided to support the lifting of the folding bulkhead from the standby position, which is pivotally mounted at both ends in the area of the folding bulkhead receptacle and whose knee is positioned against a contact surface of the folding bulkhead to lift the folding bulkhead from the standby position.

The actuator and the toggle lever are aligned or designed in such a way that when the folding bulkhead is in the ready position, they only exert a slight pressure upwards in the direction of installation of the folding bulkhead or, if necessary, the actuator can even be in an over-center position and hold the folding bulkhead in the folding bulkhead receptacle . The flap's own weight always keeps it in the ready position and therefore open. Even in the event of strong vibrations and a vehicle driving over the folding bulkhead inserted into a floor, false activation is ruled out. Only when the water level rises is the floating folding bulkhead raised by its buoyancy to such an extent that the force of the toggle lever is sufficient to raise the folding bulkhead to such an extent that the force of the actuator is sufficient to set the folding bulkhead in the locking position and seal it with its two folding bulkhead faces against, for example, masonry, connecting profiles or the like . Like is employed. The hinged bulkhead preferably consists of an extruded profile. If it is a hollow profile, the hollow chambers can be closed at the front to form the floating body. Filling the hollow profile with a closed-cell foam is also possible for this purpose.

The invention creates a device for retaining a fluid that is not only simple and functionally reliable, since it is triggered by the fluid itself when necessary, and therefore no complex and fault-prone actuator is required to release the hinged bulkhead.

The system with the trough-shaped folding bulkhead holder, which accommodates the folding bulkhead in its ready position, makes it very easy to install the device at the desired location. The folding bulkhead holder and folding bulkhead system can be freely accessed and driven over in the standby position, in particular the trough depth corresponds to the folding bulkhead thickness. A passageway can therefore be kept without thresholds and the installation depth is extremely low. In order to avoid unnecessary triggering of the device, the trough of the hinged bulkhead holder should be connected to a drainage system that drains small amounts of water, for example rainwater, from the trough.

For particularly compact construction conditions with a low overall height in the standby position, it is advantageous if the folding bulkhead is pivotally mounted on a tub edge of the folding bulkhead receptacle in the area of a longitudinal edge and if the actuator is mounted on the folding bulkhead receptacle in the area of the folding bulkhead receptacle edge opposite the tub edge. This ensures that the folding bulkhead is shifted into the shut-off position with maximum force, in particular exerted by a gas pressure spring, and is held in this position until a rising water level keeps the folding bulkhead in the shut-off position.

For a good compromise between low overall height and high actuating force for moving the folding bulkhead into the shut-off position, it is advantageous if the actuator on the folding bulkhead is mounted at a distance from the pivot axis that is less than half the folding bulkhead width, preferably less than a third of the folding bulkhead width. is.

One leg of the toggle lever preferably comprises an actuator acting in the longitudinal direction of the leg, in particular a second gas pressure spring. This makes it possible to implement a particularly simple and compact design solution for the knee lever, which is in the ready position with the leg at least approximately straight, the two over the knee connected legs, under the hinged bulkhead or in a corresponding release of the hinged bulkhead.

In order to be able to exert the greatest possible leverage, it is recommended that the leg with the actuator be mounted in the area of the tub edge and a second leg of the toggle lever in the area of the folding bulkhead receiving edge.

If the contact surface of the hinged bulkhead falls towards the free end of the hinged bulkhead in the direction of the underside of the hinged bulkhead, together with the knee of the toggle lever displaced against the contact surface by the actuator of the toggle lever, this results in an advantageous setting-up moment for the hinged bulkhead.

For the device to function properly without false triggering, it is advantageous if the folding bulkhead holder filled with water raises the folding bulkhead by an angle of 4 to 8°, in particular 6°, from the ready position around the pivot axis. From approx. 4-5°, the gas pressure spring of the toggle lever can develop sufficient force so that the toggle lever can swing the hinged bulkhead out of the ready position around the pivot axis by an angle of 20 to 30°, especially 24°. From here, the actuator, in particular the first gas pressure spring, then takes over the complete opening of the hinged bulkhead and presses the hinged bulkhead profile against corresponding seals in the bottom connection area to the hinged bulkhead receptacle or against stops flanking the hinged bulkhead. In this final step, the contact surface lifts off the knee.

For this purpose, it is advantageous if a sealing strip is provided in the connection area between the hinged bulkhead pivoted into the shut-off position and the tub edge of the hinged bulkhead receptacle, which is inserted into an upwardly open groove in the tub edge and extends over the length of the hinged bulkhead. The sealing strip can be covered at the top by a rubber-elastic cover profile that extends over the length of the hinged bulkhead It can be attached to the edge of the tub on the one hand and to the hinged bulkhead on the other.

Fig. 1

eine Vorrichtung zur Rückhaltung eines Fluids in Bereitschaftslage im teilgeschnittenen Querschnitt,

Fig. 2

die Vorrichtung aus Fig.1 mit der von Wasser aus der Bereitschaftslage angehobenem Klappschott,

Fig. 3

die Vorrichtung aus Fig.1 mit vom Kniehebel in eine Zwischenlage angehobenem Klappschott und

Fig. 4

die Vorrichtung aus Fig.1 mit vom Stelltrieb in die Absperrlage aufgestelltem Klappschott.

The subject matter of the invention is shown, for example, in the drawing. Show it

Fig. 1

a device for retaining a fluid in the standby position in a partially cut cross section,

Fig. 2

the device Fig.1 with the hinged bulkhead raised from the standby position by water,

Fig. 3

the device Fig.1 with the hinged bulkhead raised into an intermediate position by the toggle lever and

Fig. 4

the device Fig.1 with the hinged bulkhead set up in the shut-off position by the actuator.

The device 1 for retaining a fluid comprises a horizontal pivot axis 2 between a lying standby position ( Fig. 1 ) and a standing barrier position ( Fig. 4 ) a floating folding bulkhead 4 pivotably mounted on a folding bulkhead receptacle 3. The folding bulkhead is inserted into the trough-shaped folding bulkhead receptacle 3 in its ready position. To set up the folding bulkhead 4 in the shut-off position, at least one actuating drive 5, in particular a first gas pressure spring, which acts on the folding bulkhead 4 at one end and on the folding bulkhead receptacle 3 at the other end, is provided. As can be seen from the drawing, the gas pressure spring is arranged at an angle to the horizontal.

To support the lifting of the folding bulkhead 4 from the ready position, a knee lever 6 is provided, which is pivotally mounted at both ends in the area of the folding bulkhead receptacle 3 and whose knee 7 is positioned against a contact surface 8 of the folding bulkhead 4 for lifting the folding bulkhead 4 from the ready position.

The folding bulkhead 4 is pivotally mounted on a tub edge 9 of the folding bulkhead receptacle 3 in the area of a longitudinal edge. The actuator 5 is stored at one end on the folding bulkhead receptacle 3 in the area of the folding bulkhead receptacle edge 10 opposite the tub edge 9. At the other end, the actuator 5 is mounted on the folding bulkhead 4 at a distance a from the pivot axis 2, which is smaller than half the folding bulkhead width b, here in particular smaller than a third of the folding bulkhead width b.

One leg 11 of the toggle lever 6 includes an actuator acting in the longitudinal direction of the leg, here namely a second gas pressure spring 12. The leg 11 with the actuator is mounted in the area of the tub edge 9 and a second leg 13 of the toggle lever 6 is mounted in the area of the folding bulkhead receiving edge 10.

The contact surface 8 of the hinged bulkhead 4 falls towards the free end of the hinged bulkhead 4 in the direction of the bottom of the hinged bulkhead 14.

Water that penetrates into a drainage channel 18 via a cover grid 17 and can no longer be drained away via a drain 19 penetrates into the trough-shaped folding bulkhead receptacle 3 and lifts the floating folding bulkhead 4. For this purpose, the hinged bulkhead 4 is equipped with floating bodies or is itself buoyant, for example a hollow profile closed on both sides. If the trough-shaped folding bulkhead receptacle 3 fills with water, the water-filled folding bulkhead receptacle 3 lifts the folding bulkhead 4 by an angle α of 4 to 8 °, in particular by 6 °, from the ready position about the pivot axis 2.

Around the angle α, the knee 7 is positioned against a section of the contact surface 8 of the folding bulkhead 4, which slopes towards the free end of the folding bulkhead 4 towards the bottom of the folding bulkhead 14. Until then, the knee 7 was positioned against a section of the contact surface 8 of the hinged bulkhead 4, which runs approximately parallel to the surface of the hinged bulkhead.

The second gas pressure spring 12 thus presses the knee 7 against the inclined contact surface 8, whereby the knee lever 6 develops its full lifting force the folding bulkhead can subsequently swing open from the ready position about the pivot axis 2 by an angle β of 20 to 30 °, in particular 24 °. Here the second gas pressure spring 12 of the toggle lever 6 then comes to a stop and the first gas pressure spring of the actuator 5 places the folding bulkhead in the shut-off position, in which the folding bulkhead comes into contact with masonry or connecting profiles, for example in the usual way.

In the connection area between the hinged bulkhead 4 pivoted into the shut-off position and the tub edge 9 of the hinged bulkhead receptacle 3, a sealing strip 16 is inserted into an upwardly open groove 15 of the tub edge 9 and extends over the length of the hinged bulkhead. The sealing strip can be covered at the top by a rubber-elastic cover profile that extends over the length of the hinged bulkhead and is attached to the tub edge 9 on the one hand and to the hinged bulkhead on the other hand.

Claims (10)

Device (1) for retaining a fluid with a buoyant folding bulkhead (4) which is pivotably mounted on a folding bulkhead receptacle (3) about a horizontal pivot axis (2) between a lying standby position and a standing shut-off position, which in its standby position falls into the trough-shaped folding bulkhead receptacle (3 ) is used and in which at least one actuating drive (5), in particular a first gas pressure spring, acting at one end on the folding bulkhead (4) and at the other end on the folding bulkhead receptacle (3), in order to set up the folding bulkhead (4) in the shut-off position, is provided, characterized in that for To support the lifting of the folding bulkhead (4) from the ready position, a knee lever (6) is provided, which is pivotally mounted at both ends in the area of the folding bulkhead receptacle (3) and whose knee (7) is used to lift the folding bulkhead (4) from the ready position against a contact surface (8) of the hinged bulkhead (4) is turned on. Device according to claim 1, characterized in that the folding bulkhead (4) is pivotally mounted in the area of a longitudinal edge on a tub edge (9) of the folding bulkhead receptacle (3) and that the actuating drive (5) on the folding bulkhead receptacle (3) in the area of the tub edge (9) opposite folding bulkhead receiving edge (10). Device according to claim 1 or 2, characterized in that the actuator (5) is mounted on the folding bulkhead (4) at a distance (a) from the pivot axis (2) which is less than half the folding bulkhead width (b), preferably less than a third the folding bulkhead width (b), is. Device according to one of claims 1 to 3, characterized in that a leg (11) of the toggle lever (6) comprises an actuator acting in the longitudinal direction of the leg, in particular a second gas pressure spring (12). Device according to claim 4, characterized in that the leg (11) with the actuating drive is mounted in the area of the tub edge (9) and a second leg (13) of the toggle lever (6) is mounted in the area of the folding bulkhead receiving edge (10). Device according to one of claims 1 to 5, characterized in that the contact surface (8) of the hinged bulkhead (4) slopes towards the free end of the hinged bulkhead (4) in the direction of the underside of the hinged bulkhead (14). Device according to one of claims 1 to 6, characterized in that the folding bulkhead receptacle (3) filled with water lifts the folding bulkhead (4) by an angle (α) of 4 to 8°, in particular 6°, from the ready position about the pivot axis ( 2) raises. Device according to one of claims 1 to 7, characterized in that the toggle lever (6) swings the folding bulkhead (4) open from the ready position about the pivot axis (2) by an angle (β) of 20 to 30°, in particular 24° . Device according to one of claims 1 to 8, characterized in that in the connection area between the hinged bulkhead (4) pivoted into the shut-off position and the tub edge (9) of the hinged bulkhead receptacle (3) there is a groove (15) in the tub edge (9) that is open at the top ) inserted sealing strip (16) extending over the length of the hinged bulkhead is provided. Device according to claim 9, characterized in that the sealing strip (16) is covered at the top by a rubber-elastic cover profile which extends over the length of the hinged bulkhead and is fastened on the one hand to the tub edge (9) and on the other hand to the hinged bulkhead.

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