EP2460963B1 - Locking device for a vertically sliding window or door - Google Patents

Description

The invention relates to a fixing device for a vertically movable closing element according to the features of the preamble of claim 1.

From the prior art, as in the DE 40 24 467 A1 described a device for closing a room known. The device has a guided in guides bulkhead, which is transverse to an opening and in the state of Abschotttens via at least one seal liquid-tightly sealed against the boundaries of the opening and is arranged in the normal, the opening-releasing operation above this. This bulkhead is moved vertically in the guides by a drive. In the upper region or above the opening, a deflection device is provided, which deflects the bulkhead to its arrangement for normal operation from the vertical position into an oblique position.

In the DE 76 05 029 U a safety bulkhead is described. The security bulkhead for gates or the like for shielding against flooding comprises a U-shaped lower, horizontal and two U-shaped lateral vertical guides for a torsionally rigid hollow body bulkhead, arranged at the upper end of the vertical guide pulleys for aendes acting on the hollow body bulkhead and anderendes counterweights bearing connecting means and the lateral and horizontal bulkhead edges in the U-guides sealing sealing elements.

From the DE 295 08 533U1 is a Störfallbarriere for liquid-tight closing of gate and building openings known. The accident barrier has a barrier body, which can be placed sealingly on the bottom area of the opening, and accommodating bodies which cooperate with its lateral end portions and are arranged at the edges of the opening. The barrier body is hollow and can be filled with a liquid in the event of a malfunction. Furthermore, the barrier body is in vertically arranged on both sides rails between an elevated position in the upper region of the opening and a

Locking position in the bottom area guided vertically movable and connected to at least one in the empty state in equilibrium holding counterweight.

In the US 1,185,422 A a window lock for a vertically movable window is described. The window lock comprises a hook part arranged on a lower frame part of the sliding window and a hook unit engaging unit formed on a window sill.

From the DE 102 38 815 B3 is a centering for the centered determination of a workpiece to be machined known. The centering clamp consists of a clamping hook and an overlying and sitting on an adapter plate centering mandrel with an engagement slot for the clamping hook. The engagement slot of the centering mandrel is formed closed on the hook side facing away. On the other side of a hook arm of the clamping hook is assigned a Schlitzabdeckschieber, which follows the adjusting movement.

In the DE 94 02 384 U1 a demountable flood protection system is described. For lateral sealing of a protective plate by means of a foam, two guide rails for receiving the seal are attached to the outer edge of the protective plate, which projects beyond the inner dimension of the area to be covered. The protective plate is mounted by means of clamping hooks and counter-holders, which are connected to a pull rope.

From the US 3,796,010 A a flood barrier arrangement for entrance openings of a building is known. The assembly comprises a frame which is attached to the entrance opening and a flood barrier which can be arranged and removed in the frame. The flood barrier has an air inflatable seal member extending along side edges and along a lower edge of the flood barrier.

In the US 1,209,274 A For example, a locking unit for a sliding window is known, comprising a pivotable hook on an upper edge of a lower window frame and an anchoring element on a corresponding one Frame element of an upper window frame. By means of a spring, the hook is to be hooked to the anchoring element. Furthermore, means are provided to hold the hook after being released from the anchoring element in a pivoted against the spring force position.

From the GB 668,560 A a door lock is known, comprising a locking bolt which is to be locked in a locking opening. The locking opening is formed from a tube which is closed at one end and the opening at the other end is reduced by a welded-on ring plate. In the tube, a piston element is arranged, which is pressed by a spring against the ring plate. Upon insertion of the locking bolt in the locking hole, the piston member is displaced by the locking bolt against the spring force in the tube.

In the DE 20 2010 010 297 U1 an automatic water lock is described. The automatic water lock comprises a vertically movable closing element for closing an opening and a fixing device, which has a fixing unit for fixing the closing element in a closed state. The fixing unit is arranged on a side of the opening arranged guide for the closing element. A hydraulically pivotable clamping hook presses in the closed state of the closing element in the region of an upper side of the closing element on the closing element.

From the DE 195 17 241 A1 a device for partitioning a room is known. In the room, a container is attached, which is provided with an opening. The opening can be closed by a closure device, which consists of two parallel arranged metal hollow profile plates.

In the WO 2010/114891 A1 a combined sealing system for a garage door is described. The combined sealing system comprises a frame, a plate, a first sealing system, a second sealing system and a third sealing system. The plate is movable between within the frame and with respect to the frame at least one open position and a fully closed position and has a plurality of partial plates, which are arranged articulated to each other.

The invention has for its object to provide a fixing device for a vertically movable closing element for at least partially closing an opening of a room.

The object is achieved by a fixing device for a vertically movable closing element for at least partially closing an opening of a room with the features of claim 1.

Advantageous embodiments of the invention are the subject of the dependent claims.

A fixing device for a vertically movable closing element for at least partially closing an opening of a space according to the invention for fixing the closing element in a closed state at least one arranged on the closing element first fixing unit and a corresponding to the first fixing unit engagement unit in an opening bottom. Furthermore, the fixing device according to the invention for fixing the closing element in the closed state at least a second fixing unit, which is arranged on a side of the opening arranged guide for the closing element and at least one clamping hook which in the closed state of the closing in the region of an upper side of the closing in the closing element can be latched, wherein the clamping hook of the second fixing unit is pneumatically, hydraulically and / or motor-operated, in particular pivotable.

Such a closing element serves, for example, a seal of the room against penetrating from outside into the room water, for example in a flood event, or against leakage of liquids from the room into the environment, for example in an accident, in which leakage of environmentally hazardous substances and / or extinguishing water from the room is to be prevented. Therefore, such closing elements are attached, for example, to openings of rooms, which serve as storage space for environmentally hazardous substances or as Production site in which such materials are stored, processed and / or manufactured.

Alternatively, the closing element can close in this way also an opening of a barrier and thereby a space behind the barrier. Such barriers are placed, for example, within a room as a room divider and extend for example from a room wall to an opposite room wall. Through the barrier, the space is divided into two spaces, which are closed and sealed against each other by the barrier and the closing element. Of course, such a barrier can also be arranged outside a covered space, for example on an open space surrounded by side walls, the barrier sealingly bearing against the side walls. In this way, two spaces defined by the barrier and the closing element are provided on the open space and can be sealed off from one another.

By means of the fixing device, the closing element is to be secured in the closed state such that an independent opening of the closing element is reliably prevented. For this purpose, the fixing device counteracts the forces acting on the closing element, which could lift and / or deform the pouring element and thereby cancel the sealing of the opening of the space made by the closing element in the closed state. The closing element can be pressed by means of the fixing device against the opening bottom and secured against vertical movements. The fixing device is a buoyancy protection for the closing element. Furthermore, the closing element is to be secured by means of the fixing device against horizontal movements and deformations and a resulting tearing out of the lateral guide.

By engaging the suitably arranged at a lower edge of the closing element first fixing unit in the engaging unit and by the engagement of the clamping hook in the closing element, the closing element by means of the first fixing unit and by means of the second fixing fixed to the opening bottom, so that lifting the closing element, for example due to a floating and / or deformation of the closing element, for example is prevented by storms on one side due to one-sided loads by the closing element on one side attacking flood, fire water and / or other liquids and possibly floating objects and by acting on the closing element wind loads.

Preferably, the fixing device comprises two second fixing units, in each case a second fixing unit on each lateral guide of the closing element, so that the closing element by means of the clamping hooks, which are suitably made of metal, for example made of steel, and which engage on both sides in the closing element optimally secured and braced. As a result, in particular a deformation of the closing element, which would lead to a pulling out of the closing element from the lateral guides, prevented. Due to the mutual clamping hook the closing element is braced in the direction of the lateral guides and held in this.

In order to enable an optimal and very tight clamping of the closing element by each of the clamping hooks, the closing element expediently on the top for each clamping hook on a pull-out security plate with a latching, in which the clamping hook in the closed state of the closing element can be latched. These pull-out security plates, which are usefully made of metal, for example made of steel, cause a stiffening of the closing element and allow an optimal engagement of the respective clamping hook. The pull-out securing plates prevent the latched clamping hooks from being torn out of the closing element when the forces acting on it are prevented.

A number of the first fixing units on the closing element and the engaging units corresponding thereto are advantageously oriented according to a design and an intended use of the closing element, in particular according to its longitudinal extent. The greater the longitudinal extent of the closing element, in particular in the case of a height of the closing element which is small in relation to its longitudinal extent, the more unstable the closing element, in particular in the case of horizontally acting forces, for example due to fluid pressure of a liquid accumulated by the closing element. Furthermore, a stability of the Closing element depending on its construction and material. Therefore, in the case of relatively unstable closing elements, which for example have a large longitudinal extent, ie a large width, preferably a plurality of first fixing units are distributed over a longitudinal extent of the closing element and the associated corresponding engaging units are arranged distributed in the opening bottom.

The first fixing unit may be arranged on an outer side, on an inner side facing the space or in the closing element. In the case of a plurality of first fixing units, these may be arranged correspondingly on the outside and / or on the inside of the closing element and / or in the closing element.

According to the invention, the first fixing unit comprises a preferably cone-shaped centering pin and at least one pivotable hook. The centering pin and the hook are each made of metal, for example steel. The centering pin can be inserted into the engagement unit during a lowering of the closing element and secures the closing element in particular against deformation and / or movements in the horizontal direction.

Due to the cone-shaped, d. H. Conical or frusto-conical design of the centering mandrel is this even in already occurring horizontal deformations of Verschließelementes during lowering, for example due to attacking wind loads or already flowing through the opening of the room liquids flowing safely into the engagement unit, preferably inserted into a cavity of the engagement unit and thus the closing element safely fixable, since the centering mandrel serves as a guide means and pulls during insertion into the cavity of the engagement unit by the cone-shaped training also an already somewhat vertically deformed closing element again in the intended position.

By means of the hook, the closing element is to be hooked on the engagement unit and thus on the opening bottom and thereby secured against vertical movement and / or deformation and preferably also against horizontal movements and / or deformations. Preferably, the hook or a plurality arranged such hooks in the centering and swung out of this laterally. Further, by means of the hook or hooks, the closing element is to be pulled by the pivoting movement of the hook in the direction of the opening bottom and in this way to be pressed against it in a sealing manner.

According to the invention, the hook is arranged in the centering pin and can be swung out of it. The hook is arranged for this purpose in the hollow body-shaped centering mandrel and swung out through lateral openings of this, when the hook and the centering mandrel are arranged in the cavity of the engagement unit, d. H. when the closing element is completely or at least almost completely lowered. In this way, by centering, which serves as a guide means and aligns the closing element during lowering accordingly, with the centering pin and the hook safely and completely inserted into the cavity of the engagement unit and pivotable therein to the hook in the engagement unit to catch and thereby to fix the closing element.

The hook is expediently pneumatically, hydraulically, mechanically and / or mechanically pivotable. In this case, the pneumatic pivoting is preferable because it is automatically feasible, for example in an automatic emergency closing of the closing element, and easy to implement, for example by a compressed air connection to the first fixing unit, which is connected for example via a compressed air line to a compressor and / or For example, it is connected to a compressed air system that is already installed at a variety of production facilities.

Here, the first fixing unit is preferably connected via a pneumatic reservoir with the compressed air system or directly to the compressor, the reservoir is constantly filled with a sufficient compressed air supply under sufficient pressure to operate solely by this compressed air supply operating the first fixing units, ie pivoting the To enable hooks. This ensures a reliable function, ie a reliable fixing of the closing element, even in the event of an accident in which the compressed air system and / or the compressor fail, for example because of a failure of a power supply. In order to prevent escape of the compressed air from the pneumatic reservoir in such a failure of the compressor or the compressed air system, a connection for a supply line between the compressed air system and / or the compressor and the pneumatic reservoir expediently has a check valve, which is the influx of compressed air in allows the pneumatic reservoir, but prevents leakage from the pneumatic reservoir via the check valve. In this way, the pneumatic reservoir ensures at any time, in particular, for example, in an accident with a failure of the compressor or the compressed air system proper function of the fixing, as at any time sufficient compressed air for the operation of the fixing device is available.

After the hook or hooks are pneumatically pivoted and hooked in this way, the closing element is preferably also secured in the unpressurized state by the hook or the. Ie. the hook (s) do not open / open when the pressure drops, but only by repressurizing in the opposite direction to return the hook or hooks. As a result, unintentional release of the fixation of the closing element by the fixing device is reliably avoided.

As the first fixing unit, for example, a so-called underfloor tensioner is used, which is known from the automotive industry and the sheet metal processing industry. These underfloor tensioners have a pivoting hook or a pivotable double hook, d. H. two hooks which can be swiveled in opposite directions. In addition, these underfloor tensioners can also have a centering mandrel. In the embodiment with centering mandrel, the hook or hooks are arranged in the hollow centering pin and can be pivoted laterally out of it.

Also for the clamping hook of the second fixing unit, the pneumatic actuation, in particular pivoting, the clamping hook of the second fixing unit to be preferred, since it is automatically carried out, for example in an automatic emergency closing of the closing element, and easy to implement, for example by a compressed air connection to the second Fixing unit, which for example via a compressed air line is connected to a compressor, for example, connected to a compressed air system, which is already installed in a variety of production facilities.

Again, the second fixing unit is preferably connected via a pneumatic reservoir with the compressed air system or directly to the compressor, the reservoir is constantly filled with a sufficient air supply under sufficient pressure to operate solely by this compressed air supply operating the second fixing unit, d. H. to allow a displacement of the bolt. This ensures a reliable function even in the event of an accident in which the compressed air system and / or the compressor fail, for example due to a failure of a power supply. H. a reliable fixing of the closing element.

In order to prevent escape of the compressed air from the pneumatic reservoir in such a failure of the compressor or the compressed air system, also here has a connection for a supply between the compressed air system and / or the compressor and the pneumatic reservoir expediently a check valve, which is the inflow of Compressed air in the pneumatic reservoir allows, but prevents leakage from the pneumatic reservoir via the check valve. In this way, the pneumatic reservoir ensures at any time, in particular, for example, in an accident with a failure of the compressor or the compressed air system proper function of the fixing, as at any time sufficient compressed air for the operation of the fixing device is available.

The compressed air tank is expediently the same reservoir, which is used to pivot the hook or hooks. It is expediently carried out a coordinated operation of the hook or the first fixing unit (s) and the one or more of the clamping hooks of the second fixing unit (s).

The actuation of the first fixing unit and / or the second fixing unit is preferably triggered by a switch, which is switchable by the closing element when it drops to the closed state. For example, that operates Closing the switch during the last millimeter of the Absenkweges, so that the engagement of the fixing units takes place immediately after the complete lowering of the closing element.

The engagement unit preferably comprises a cavity in the opening bottom, in which the first fixing unit is at least partially insertable during a lowering of the closing element. More specifically, the centering pin and / or the hook of the first fixing unit are / are insertable into the cavity. In this way, the engaging unit is fully integrated in the opening bottom and does not interfere with normal operation of the opening of the room, being traversable by, for example, vehicles without damage to the vehicles, the engaging unit, and cargo transported by the vehicles, into or out of the space to transport this out. The first fixing unit protrudes at least partially, i. H. with the centering mandrel and / or the hook, beyond a lower edge of the closing element downwards, so as to allow insertion into the cavity during the lowering of the closing element.

Advantageously, the engagement unit has an undercut, in which the hook can be hooked by pivoting. The undercut is formed for example by a bottom plate which is arranged above the cavity, preferably sunk into the opening bottom such that a surface of the bottom plate is at the level of a bottom surface, d. H. that the bottom plate is not raised to the ground surface. In this way, the bottom plate, which is for example made of metal, for example made of steel, of vehicles without damage to the vehicles, transported cargo or the base plate is traversable.

The bottom plate has a passage opening through which the centering pin and / or the hook is inserted into the cavity / are. A diameter of the passage opening is formed smaller than a diameter of the cavity, so that the bottom plate forms an undercut. The hook is laterally pivotable in the cavity, whereby it hooks on an underside of the bottom plate.

In an advantageous embodiment, the engagement unit has a sealing element for closing a cavity opening of the cavity in an open state of the closing element. As a result, the cavity is sealed in the open state of the closing element against ingress of liquids and in particular against ingress of dirt and other foreign bodies, which hinder penetration of the centering mandrel and / or the hook and thereby a reliable fixing of the closing element at a lowering of the closing could prevent. As a result, in particular after a very long life of the fixing device, its proper function is ensured at all times.

The sealing element is preferably arranged movably in the cavity of the engagement unit. Particularly preferably, a spring element is arranged below the sealing element in order to press the sealing element in the opened state of the closing element against the cavity opening. The sealing element is formed, for example, as a closed-pore rubber part, for example, of ethylene-propylene-diene rubber (EPDM), also called sponge rubber, whose diameter is greater than a diameter of the cavity opening.

When the bottom plate is arranged on the cavity, the passage opening of the bottom plate forms the cavity opening to be closed. The sealing element is pressed in the open state of the closing element by means of the underlying spring element against the underside of the bottom plate so that it closes and seals the cavity formed by the passage opening of the bottom plate cavity opening. During lowering of the closing element, the sealing element is displaceable downwards against the spring force of the spring element in the cavity by the centering pin and / or the hook, so that the centering pin and / or the hook can penetrate sufficiently deep into the cavity. Furthermore, the sealing element and the spring element can be used for intercepting and cushioning the lowering movement of the closing element in order to strongly impact the opening bottom during a rapid lowering movement of the closing element and possibly damage the closing element, the opening bottom and / or seals on the closing element and / or at the opening bottom.

Embodiments of the invention are explained in more detail below with reference to drawings.

Figur 1

eine schematische Darstellung eines Verschließelementes im geöffneten Zustand und einer Fixiervorrichtung, und

Figur 2

eine schematische Darstellung eines Verschließelementes im geschlossenen Zustand und einer Fixiervorrichtung.

Show:

FIG. 1

a schematic representation of a closing element in the open state and a fixing device, and

FIG. 2

a schematic representation of a closing element in the closed state and a fixing device.

Corresponding parts are provided in all figures with the same reference numerals.

The Figures 1 and 2 show a vertically movable closing element 1 for at least partially closing an opening 2 of a room. It shows FIG. 1 the closure element 1 in an opened state, in which it is arranged above the opening 2 or in an upper region of the opening 2. In this way, the opening 2 of the room is open and freely accessible, for example, walkable or with vehicles durchfahrbar.

In FIG. 2 the closure element 1 is shown in a closed state. It is lowered to an opening bottom 2.1 and fixed in this position. In this closed position, the opening 2 is closed in the region of the closing element 1 by this liquid-tight. For this purpose, arranged laterally of the opening 2 guides 3 for the closing element 1 at least sealed at the level of an upper surface of the closing element 1 in the closed state secured to an outer wall 4 of the room, the closing element 1 is sealed at least in the closed state in the guides 3 and guided and between a bottom of the closing element 1 and the opening bottom 2.1, a seal is also arranged in the closed state of the closing element 1, for example, this is attached to the underside of the closing element 1.

Such a closure element 1 serves, for example, a seal of the room against penetrating from outside into the room water, for example in a flood event, or against leakage of liquids from the room into the environment, for example in an accident, in which leakage of environmentally hazardous To prevent substances and / or extinguishing water from the room. Therefore, such closing elements 1 are attached, for example, to openings 2 of rooms, which serve as storage space for environmentally hazardous substances or as a production facility in which such substances are stored, processed and / or manufactured.

If such an event occurs, i. H. For example, a flood or a disaster, the closing element 1 is lowered and the opening 2 of the space thereby close liquid-tight, at least up to a predetermined damming height. The damming height is predetermined by a height of the closing element 1.

The closing element 1 is moved by a drive from the open state to the closed state and back. The drive is designed, for example, as a cable 5, of which, for reasons of clarity, only ropes connected to the closing element 1 are shown here. At this cable 5, counterweights are arranged, for example, to compensate for a weight of the closing element 1 and thereby to be able to move with only a small additional effort. This additional effort is for example manually, motorized, pneumatically or hydraulically feasible.

The closing element 1 has a fixing device in order to secure the closing element 1 in the closed state such that an independent opening of the closing element 1 is reliably prevented. For this purpose, the fixing device counteracts the forces acting on the closing element 1, which could lift and / or deform the casting element 1 and thereby eliminate the sealing of the opening 2 of the space made by the closing element 1 in the closed state.

In the example shown here, the fixing device has a first fixing unit 6 arranged on the closing element 1 for fixing the closing element 1 in the closed state. Furthermore, the fixing device comprises a to the first fixing unit 6 corresponding engagement unit 7 in the opening bottom 2.1. In order to clearly illustrate the engagement unit 7, its components and their function in the figures, the opening bottom 2.1 and the engagement unit 7 in the schematic representations of Figures 1 and 2 shown schematically cut, with a sectional plane parallel to the opening 2 of the room is perpendicular.

The first fixing unit 6 comprises a cone-shaped, d. H. conical or frusto-conical centering pin 6.1 and arranged in the centering 6.1 pivoting hook 6.2. The centering mandrel 6.1 is formed as a hollow body, in which the hook is arranged 6.2, and has a lateral opening for the hook 6.2, through which the hook 6.2 is pneumatically herausschwenkbar from the centering mandrel 6.1. For this purpose, the hook 6.2 is mounted so pivotally and connected for example via a piston rod, not shown, with a piston, not shown, of a pneumatic cylinder, not shown, that a rectilinear movement of the piston in the pneumatic cylinder in the pivoting movement of the hook 6.2 can be implemented. In other embodiments, for example, the first fixing unit 6 can also have two hooks 6.2, which can be pivoted out laterally from the centering pin 6.1, preferably in the opposite direction.

As such first fixing unit 6, for example, a so-called underfloor tensioner is used, which is known from the automotive industry and the sheet metal processing industry. These underfloor tensioners have a pivotable hook 6.2 or a pivotable double hook, ie two pivotable in the opposite direction hook 6.2. In addition, these underfloor tensioners can also have a centering mandrel 6.1. In the embodiment with centering 6.1 is the hook 6.2 or the hooks are 6.2 arranged in the centering pin 6.1 and laterally out of this pivoting. Such underfloor tensioners are used for example for receiving, holding and transporting sheets or components by means of the hooks 6.2.

The engagement unit 7 comprises a cavity 7.1 in the opening bottom 2.1, in which the first fixing unit 6 is at least partially insertable during a lowering of the closing element 1. More precisely, the hook 6.2 and the centering pin 6.1 of the first fixing unit 6 can be inserted into the cavity 7.1, wherein during insertion into the cavity 7.1 of the hook 6.2 is still arranged in its starting position in the centering mandrel 6.1.

The engagement unit 7 is fully integrated in the opening bottom 2.1 and does not interfere with normal operation of the opening 2 of the room, is traversable, for example, by vehicles without damage to the vehicles, the engagement unit 7 and without damaging cargo transported by the vehicles To move space in or out of it. The first fixing unit 6 is in order to insert the centering pin 6.1 and the hook 6.2 in the cavity 7.1, arranged on the closing element 1, that the centering pin 6.1 and arranged in this hook 6.2 project beyond the underside of the closing element 1 down.

The engagement unit 7 has an undercut, in which the hook 6.2, as in FIG. 2 represented by hooking is einhakbar. The undercut is formed by a bottom plate 7.2, which is arranged above the cavity 7.1.

Here, the bottom plate 7.2, which is for example made of metal, for example made of steel, sunk into the opening bottom 2.1 such that a surface of the bottom plate is 7.2 at the level of a soil surface, d. H. that the bottom plate 7.2 is not raised to the bottom surface. In this way, the bottom plate is 7.2 of vehicles without damage to the vehicles, transported cargo or the bottom plate 7.2 passable.

The bottom plate 7.2 has a passage opening 7.3, through which the centering mandrel 6.1 and arranged in this hook 6.2 can be inserted during the lowering of the closing element 1 into the cavity 7.1. A diameter of the passage opening 7.3 is formed smaller than a diameter of the cavity 7.1 in the area directly under the bottom plate 7.2, so that the bottom plate 7.2 forms the undercut, on which the swung hook 6.2 can hook. The hook 6.2 is laterally pivotable in the cavity 7.1, whereby it rests against an underside of the bottom plate 7.2 and hooked to the bottom plate 7.2.

The engagement unit 7 has a sealing element 7.4 for closing a cavity opening of the cavity 7.1 in an opened state of the closing element 1, as in FIG FIG. 1 shown. The cavity opening is formed here by the passage opening 7.3 of the bottom plate 7.2.

By the sealing element 7.4 of the cavity 7.1 is sealed in the open state of Verschließelementes 1 against ingress of liquids and in particular against ingress of dirt and other foreign bodies, which at a lowering of the closing element 1 penetration of the centering pin 6.1 and arranged in this hook 6.2 and thereby hinder or prevent reliable fixing of the closing element 1. As a result, in particular after a very long life of the fixing device, its proper function is ensured at all times.

The sealing element 7.4 is arranged movably in the cavity 7.1 of the engagement unit 7. Under the sealing element 7.4, a spring element 7.5 is arranged, for example in the form of a helical spring to press the sealing element 7.4 in the open state of the closing element 1 against the opening formed by the passage opening 7.3 of the bottom plate 7.2 cavity opening and seal it.

The sealing element 7.4 is, for example, as a closed-pore rubber part, for example, ethylene-propylene-diene rubber (EPDM), also called sponge rubber, whose diameter is greater than the diameter of the cavity opening, which is formed here by the passage opening 7.3 of the bottom plate 7.2 , The sealing element 7.4 is pressed in the open state of the closing element 1 by means of the underlying spring element 7.5 against the underside of the bottom plate 7.2 so that it closes and seals the cavity formed by the passage opening 7.3 of the bottom plate 7.2.

During the lowering of the closing element 1, the sealing element is 7.4 displaced by the centering 6.1 against a spring force of the spring element 7.5 in the cavity 7.1 downward, so that the centering pin 6.1 and the hook 6.2 can penetrate sufficiently deep into the cavity 7.1. In this case, the sealing element 7.4 and the spring element 7.5 further for intercepting and cushioning the lowering of the closing element 1 can be used to strong impact on the bottom opening 2.1 and a possibly resulting damage to the closing element 1, the opening bottom 2.1 at a rapid lowering movement of the closing and / or of seals on the closing element 1 and / or on the opening bottom 2.1.

If it is necessary to seal the opening 2 of the space at least in the lower region liquid-tight, the closing element 1 is lowered to the opening bottom 2.1, whereby the centering 6.1 with the arranged in this hook 6.2 with displacement of the sealing element 7.4 against the spring force of the spring element 7.5 in penetrates the cavity 7.1.

The centering mandrel 6.1 secures the closing element 1 in particular against deformation and / or movements in the horizontal direction. Due to the conical shape of the centering mandrel 6.1 this is safely inserted into the cavity 7.1 even in already occurring during the lowering horizontal deformations of Verschließelementes 1, for example due to attacking wind loads or already through the opening 2.1 of the room flowing liquids and thereby the closing element 1 securely fixed.

If the closing element 1 is completely lowered, the hook 6.2 can be pivoted laterally out of the centering pin 6.1 and pivoted under the bottom plate 7.2, so that it hogs on the bottom plate 7.2 and, by the pneumatic pivotal movement, the closing element 1 additionally pulls downwards and against the opening bottom 2.1 presses, so that the sealing of the closing element 1 at the bottom opening 2.1 is still reinforced. As a result, the closing element 1 by means of the hook 6.2 to the engagement unit 7, more precisely to the bottom plate 7.2 and thus to catch the opening bottom 2.1, and thereby against vertical movement and / or Deformation and preferably also to secure against horizontal movements and / or deformations.

For the pneumatic pivoting of the hook 6.2, the first fixing unit 6 is connected via a first supply compressed air line 8 and a first return compressed air line 9 to a reservoir 10 for compressed air. This reservoir 10 is connected, for example, with a compressor not shown in detail or a compressed air system and constantly filled with a sufficient supply of compressed air under sufficient pressure to operate solely by this compressed air supply operating the first fixing unit 6, d. H. to allow a pivoting of the hook 6.2. This ensures a reliable function even in the event of an accident in which the compressed air system and / or the compressor fail, for example due to a failure of a power supply. H. a reliable fixing of the closing element. 1

In order to prevent escape of the compressed air from the reservoir 10 in such a failure of the compressor or the compressed air system, a non-illustrated connection for a supply line between the compressed air system and / or the compressor and the reservoir 10, a check valve, which is the inflow of Compressed air into the reservoir 10 allows, but prevents leakage from the reservoir 10 via the check valve. In this way, the reservoir 10 ensures at any time, in particular, for example, in an accident with a failure of the compressor or the compressed air system proper function of the fixing, as at any time sufficient compressed air for the operation of the fixing device is available.

After the hook 6.2 is pneumatically pivoted and hooked in this way, the closing element 1 is secured by the hook 6.2 even in the unpressurized state. Ie. the hook 6.2 does not open with decreasing pressure, but only by repressurization in the opposite direction to zurückzuschwenken the hook 6.2. As a result, unintentional release of the fixation of the closing element 1 is reliably avoided by the fixing device. Therefore, the first fixing unit 6 is connected via the first supply compressed air line 8 for closing pivoting of the hook 6.2 with the reservoir 10 and the first Return pressure air line 9 for pivoting back of the hook 6.2 and thereby connected to open the fixation with the reservoir 10.

In addition, the fixing device comprises two second fixing units 11, which are arranged on the side of the opening 2 arranged guides 3 for the closing element 1, one of the second fixing unit 11 on each side of the opening 2. These second fixing units 11 each have a clamping hook 11.1, the in the closed state of the closing element 1 in the region of an upper side of the closing element 1 in the closing element 1 can be latched. In FIG. 2 the tensioning hooks 11.1 are shown in the locked in the closing element 1 state. The clamping hooks 11.1 are each coupled via a further piston rod 11.2 with a further piston 11.3 of a further pneumatic cylinder 11.4 and pivotable in this way. By latched in the closed state in the closing element 1 clamping hook 11.1 this is also held by these second fixing units 11 in position and secured in particular against vertical movements.

In order to enable a secure engagement of the tensioning hooks 11.1 in the closing element 1, the closing element 1 on the upper side for each tensioning hook 11.1 an extract securing plate 1.1 with a latching, in which the clamping hooks 11.1 in the closed state of the closing element 1 engages. These pull-out securing plates 1.1, which are usefully made of metal, for example of steel, cause a stiffening of the closing element 1 and allow an optimal engagement of the respective clamping hook 11.1. By the pull-out securing plates 1.1 tearing out the latched clamping hooks 11.1 is prevented from the closing element 1 when acting on this forces.

By the clamping hooks 11.1 and the Auszugesicherungsplatten 1.1 is analogous to the first fixing 6 a horizontal and / or vertical movement and / or dynamic deformation of the Verschließelementes 1 due to unilaterally attacking forces by pent-up liquids, wind load or objects and further static deformation due to a Length and a weight of the closing element 1 safely prevented. For example, these pull-out securing plates 1.1 also absorb forces due to the closing element 1 falling Objects on, for example, falling building parts or trees. By hooked into the pull-out securing plates 1.1 clamping hook 11.1 is a deformation of the closing element 1 and in particular a thereby caused withdrawal from the U-shaped lateral guides 3 is prevented.

For pneumatic movement, d. H. for pivoting the clamping hook 11.1, the other pneumatic cylinder 11.4 are also connected to the reservoir 10, via second flow compressed air lines 12 and second return compressed air lines 13, and in this way also supplied with compressed air. As a result, the tensioning hooks 11.1 are pivotable in a manner similar to the hooks 6.2 of the first fixing unit 6, the pneumatic pivoting of the tensioning hooks 11.1 being ensured here as well at any time by the reservoir 10.

All fixing units 6, 11 are preferably triggered by a switch, not shown, which is switchable by the closing element 1, when it drops to the closed state. For example, the closing element 1 actuates the switch during the last millimeter of the Absenkweges. By the switch, for example, a not-shown valve between the supply pressure air lines 8, 12 and the reservoir 10 to open and the fixing units 6, 11 thereby acted upon with compressed air.

By the intervention of the first fixing unit 6 in the engagement unit 7, ie by the hooking of the hook 6.2 on the bottom plate 7.2 in the closed state of the closing element 1 and further by the second fixing units 11, ie by the engagement of the clamping hook 11.1 in the top of the closing element 1 in the closed state of the closing element 1, the closing element 1 by means of fixing units 6, 11 fixed in the closed state at the bottom 2.1 openable, so that a lifting of the closing element 1, for example, due to floating and / or deformation of the closing element 1, for example, due to one-sided loads is prevented by acting on the closing element 1 unilaterally attacking flood, fire water and / or other liquids and possibly floating objects and by acting on the closing element 1 wind loads during storms.

In the exemplary embodiment illustrated here, only a first fixing unit 6 is arranged centrally in the longitudinal direction on an outer side of the closing element 1. Furthermore, the first fixing unit 6 can also be arranged on an inner side of the closing element 1 facing the space or in the closing element 1.

A number of the first fixing units 6 on the closing element 1 and the engaging units 7 corresponding to these advantageously depend on a design and an intended use of the closing element 1, in particular on its longitudinal extent. The greater the longitudinal extent of the closing element 1, in particular in the case of a height of the closing element 1 that is small in relation to its longitudinal extent, the more unstable is the closing element 1, in particular in the case of horizontally acting forces, for example due to a fluid pressure of a liquid accumulated by the closing element 1.

Furthermore, a stability of the closing element 1 is dependent on its construction and material. Therefore, in relatively unstable closure elements 1, which, for example, a large longitudinal extent, d. H. have a large width, preferably a plurality of first fixing units 6 distributed over a longitudinal extent of the closing element 1 arranged on this and the associated corresponding engagement units 7 are distributed accordingly in the opening bottom 2.1. In the case of a plurality of such first fixing units 6, these can be arranged correspondingly on the outside and / or on the inside of the closing element 1 and / or in the closing element 1.

In order to ensure a safe insertion of the centering mandrels 6.1 and arranged in these hooks 6.2 through the passage opening 7.3 in the respective bottom plate 7.2 even with a closing element 1 with a large longitudinal extent and eccentrically eccentric on the closing element 1 arranged first fixing 6 even with temperature-induced strains of Verschließelementes through into the respective cavity 7.1, the passage opening 7.3, in particular in the longitudinal direction of the closing element 1 is formed larger than a maximum diameter of the centering mandrel 6.1. For example, the passage opening 7.3 as a slot formed whose longitudinal extent is aligned in the longitudinal extension of the closing element 1.

As a result, a change in position of the respective centering pin 6.1 due to thermal expansion of the closing element 1, on which it is arranged, compensated and the centering 6.1 and arranged in this hook 6.2 are safe over a very wide temperature range through the passage opening 7.3 of the bottom plate 7.2 in the cavity 7.1 insertable. Such temperature-induced strains can take on a considerable extent with a very long longitudinal extent of the closing element 1, especially if the outer wall 4 of the room is a building exterior wall and the closing element 1 therefore both very low winter temperatures and very high summer temperatures and in an accident with a fire development even higher Is exposed to temperatures.

LIST OF REFERENCE NUMBERS

1

closing

1.1

Shield cover plate

2

opening

2.1

opening floor

3

guide

4

outside wall

5

cable

6

first fixing unit

6.1

centering

6.2

hook

7

engagement unit

7.1

cavity

7.2

baseplate

7.3

Through opening

7.4

sealing element

7.5

spring element

8th

first supply compressed air line

9

first return compressed air line

10

reservoir

11

second fixing unit

11.1

tenterhook

11.2

further piston rod

11.3

another piston

11.4

further pneumatic cylinder

12

second flow compressed air line

13

second return compressed air line

Claims (13)

1. Fixing device for a closing element (1) which can be moved vertically in the direction of an opening floor (2.1), and back again, and is intended for at least partially closing an opening (2) of a room, comprising, for the purpose of fixing the closing element (1) in a closed state, at least one first fixing unit (6), which is arranged on the closing element (1), and an engagement unit (7) in the opening floor (2.1), said engagement unit corresponding with the first fixing unit (6), and at least one second fixing unit (11), which is arranged on a guide (3) for the closing element (1), said guide being arranged to the side of the opening (2), and has at least one clamping hook (11.1) which, in the closed state of the closing element (1), can be latched into the closing element (1) in the region of an upper side of the closing element (1), said upper side being oriented away from the opening floor (2.1), wherein the clamping hook (11.1) of the second fixing unit (11) can be actuated, in particular pivoted, pneumatically, hydraulically and/or by motor, wherein the first fixing unit (6) has a centring spike (6.1) and at least one pivotable hook (6.2), and wherein the hook (6.2) is arranged in the centring spike (6.1) and can be pivoted out of the same.
2. Fixing device according to Claim 1,
   characterized in that the closing element (1), on the upper side, has a pullout-prevention plate (1.1) with a latch-in opening, into which the clamping hook (11.1) can be latched in the closed state of the closing element (1).
3. Fixing device according to Claim 2,
   characterized in that the pullout-prevention plate (1.1) is made of metal, in particular of steel.
4. Fixing device according to one of the preceding claims,
   characterized in that the hook (6.2) can be pivoted pneumatically, hydraulically, by motor and/or mechanically.
5. Fixing device according to one of the preceding claims,
   characterized in that the engagement unit (7) comprises a cavity (7.1) in the opening floor (2.1), it being possible for the first fixing unit (6) to be introduced, at least in part, into said cavity during a lowering operation of the closing element (1).
6. Fixing device according to one of the preceding claims,
   characterized in that the engagement unit (7) has an undercut, into which the hook (6.2) can be hooked by a pivoting action.
7. Fixing device according to Claim 6,
   characterized in that the undercut is formed by a base plate (7.2) which is recessed into the opening floor (2.1).
8. Fixing device according to Claim 7,
   characterized in that the base plate (7.2) has a through-passage opening (7.3), through which the centring spike (6.1) and/or the hook (6.2) can be introduced into the cavity (7.1), wherein a diameter of the through-passage opening (7.3) is smaller than a diameter of the cavity (7.1).
9. Fixing device according to one of Claims 5 to 8,
   characterized in that the engagement unit (7) has a sealing element (7.4) for closing an opening of the cavity (7.1) in an open state of the closing element (1).
10. Fixing device according to Claim 9,
    characterized in that the sealing element (7.4) is arranged in a movable manner in the cavity (7.1) of the engagement unit (7), and a spring element (7.5) is arranged beneath the sealing element (7.4) in order to press the sealing element (7.4) against the cavity opening in the open state of the closing element (1).
11. Fixing device according to one of the preceding claims,
    characterized in that the first fixing unit (6) and/or the second fixing unit (11) are/is connected to a pneumatic supply container (10).
12. Fixing device according to one of the preceding claims,
    characterized in that actuation of the first fixing unit (6) and/or of the second fixing unit (11) can be triggered by a switch which can be operated by the closing element (1) when the latter lowers into the closed state.
13. Fixing device according to one of the preceding claims,
    comprising two second fixing units (11), wherein a second fixing unit (11) is arranged on each of the two lateral guides (3) of the closing element (1).

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