AT517292B1 - Transportable retention device for liquids - Google Patents

Abstract

A transportable restraint device for protection against the penetration of liquids comprises a flexible membrane sheet (10) with a first edge (11) and a second edge (12), traction ropes (20), each on the liquid side of the membrane sheet (10) in the transverse direction of the Membrane sheet (10) connect the first edge (11) and the second edge (12) to each other, the length of the respective traction cable (20) being smaller than the width of the membrane sheet (20) at the relevant point between the first and second edge ( 11, 12), and vertical struts (30) set up on the liquid side of the membrane web (10) for erecting the second edge (12) of the membrane web (10). The invention offers a very simple and inexpensive replacement for conventional protection systems. It manages with a very small number of components, has a low weight and can be folded up compactly. This enables quick and easy assembly and quick and complete dismantling.

Description

TRANSPORTABLE RETENTION DEVICE FOR LIQUIDS The invention relates to a transportable retention device for liquids, which can be used to protect against approaching flooding on buildings, water closures, dam elevations and the like. In addition, this is suitable for the retention of superficial liquids such as fire water as well as for other water management applications.

Conventional sandbag barriers, which are often used in flooding, require a large amount of personnel and logistics. Removable dam beam systems, as described for example in DE 10 2007 007 564 B4, require the installation of vertical supports in advance, between which dam beam elements are installed if necessary. Here, too, the effort is considerable. In addition, systems of this type are not suitable for surprising flood events in which there is only little time available for the installation of a protection.

A portable restraint device according to the preamble of claim 1 is known from DE 198 07 640 A1. This has a flexible membrane sheet which has a first edge for flooding by liquid to be retained and a second edge which can be lifted off the floor. A floatable lifting device in the form of a hose is arranged on the second edge, which serves as a float in the application and can optionally be inflated. Furthermore, the second edge is connected to a section of the membrane web by means of a network comprising ropes. When in use, the hose floats and lifts the second edge. The liquid pressure at the erected membrane section is supported via the network. The hose makes assembly and disassembly of the known restraint device difficult. If the hose has to be inflated, additional equipment is required. If, on the other hand, a passive float is used, it must be dimensioned accordingly for sufficient buoyancy so that the restraint device cannot be stowed away compactly. This in turn affects portability. Furthermore, the height of the traffic jam is limited.

Another restraint device of a similar type is known from WO 2009/033195 A1. This has a float for straightening up. Ground anchors are used for fastening to the subsurface.

Furthermore, from DE 20 2007 013 345 U1 a restraint device with a tarpaulin is known which requires a stationary beam to be fixed to the floor. Either a float is provided for lifting or a support on which an edge of the tarpaulin is attached. The support is anchored using a rope attached to the floor. A quick assembly and disassembly is not possible here.

The invention is based on the object to provide a flexible and easy to transport retention device for liquids, which can be installed and uninstalled with little effort within a short time and which also has a simple structure, is inexpensive to manufacture and a larger Storage height enables.

This object is achieved by a portable retention device for liquids according to claim 1.

Such a restraint can be quickly and easily dismantled by a few people if necessary. In the event of flooding, the liquid to be retained presses a section of the membrane web onto the floor and thus fixes it, while the pressure of the liquid acting in the horizontal direction on the erected section of the membrane web is supported by the pulling cables on the liquid side.

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AT 517 292 B1 2020-01-15 Austrian Patent Office [0009] The membrane web including the pull cables can also be folded very compactly, so that it takes up little storage capacity. For example, it can also be carried in emergency vehicles. It is also possible to roll it up so that it can easily be rolled out if necessary.

Through the vertical supports, a reliable locking effect against overcoming the restraint device can be ensured, especially in the case of a rapid rise in liquid. In addition, the vertical supports promote the installation of the restraint. If liquid is present, a greater height of the second edge above the floor can also be achieved. This generally results in an increase in stability.

The traction cables are stretched over the vertical supports when liquid is present, which further increases the stability and maximum floor height of the second edge.

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

The length of the traction cables is preferably matched to the width of the membrane web such that when liquid is present on the membrane web, the section of the membrane web held at the bottom by the pressure of the liquid is larger in the transverse direction than the erected section of the membrane web. As a result, the system is self-holding when used. In addition, this may protect the surface against the ingress of liquid, which improves the stability of the retention device.

[0014] The width of the section of the membrane web held on the bottom in the transverse direction is preferably at least twice the erected section.

According to a further advantageous embodiment of the invention, the ratio of the length of the traction cable to the width of the membrane web at the point in question between the first and second edge is greater than 0.8 and preferably greater than 0.85. This ensures that there is sufficient space available for the bulging of the membrane sheet due to the water pressure and that the retention device withstands the water pressure and does not slip to the side.

Furthermore, the first edge, which is flooded in the event of use, may have devices for fixing the membrane sheet on the floor in order to further improve the stability. In addition, this can better ensure that when the liquid starts up slowly, it does not creep under the membrane membrane.

According to a further advantageous embodiment, the first edge has anchorages for the traction cables. In this way, optimal use is made of the membrane web in the transverse direction.

The anchors for the traction ropes can also serve as ground fastening devices. For example, it is possible to provide eyelets on the first edge for this purpose, which are used for anchoring the traction cables and for fastening the membrane web to the floor. The membrane membrane is attached to the floor using hooks or nails. As an alternative or in addition, the first edge can also be determined by means of weights.

To further increase the stability, a hem can be provided on the second edge, in which a rope runs, which can be tensioned in the longitudinal direction of the membrane web, in order to further increase the stability of the retaining device.

Preferably, the vertical supports have a base for wide-area support on the membrane sheet, which is continuous in the area of the support of the vertical supports. This ensures a very high level of tightness.

For this purpose, the vertical supports can, for example, be conical. An embodiment in the form of rod-shaped masts with a plate-shaped base is also possible.

It is also possible to insert the vertical supports through passage openings provided in the membrane sheet. The vertical supports each form a section for anchoring to the floor, as a result of which the membrane membrane is fastened to the floor or

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AT 517 292 B1 2020-01-15 Austrian patent office can also be improved. In this case, sealing elements are optionally provided for sealing the vertical supports against the passage openings in order to prevent the retaining device from undermining.

[0023] The invention is explained in more detail below on the basis of exemplary embodiments illustrated in the drawing. The drawing shows in:

Figure 1 is a cross-sectional view of a transportable retention device for liquids according to a first embodiment of the invention in use when liquid is present, a cross-sectional view of a transportable retention device for liquids according to a second embodiment of the invention in use when liquid is present with an alternative Vertical strut, a cross-sectional view of the membrane sheet in the collapsed state, a view of the retaining device from above in the set-up state, a vertical support with integrated floor anchoring, and in a variant with additional tension protection of the pull rope on the vertical support.

FIG. 3 [0027] FIG. 4 [0028] FIG. 5 [0029] FIG. 6 [0030] The exemplary embodiment in FIG. 1 shows a transportable retaining device 1 for liquids, which can be assembled and dismantled quickly and easily.

In the simplest case, the restraint device 1 comprises a flexible membrane sheet 10 and tension cables 20 attached to it.

To increase the stability vertical struts 30 can also be provided, which are arranged on the liquid side of the membrane sheet 10. Furthermore, fastening elements 40 can be provided for fastening the membrane sheet 10 to the bottom 2.

The membrane web 10 preferably consists of a heavy-duty textile fabric, which can optionally be additionally provided with a coating. It has a longitudinal edge 11 which is flooded with liquid when in use and an opposite second edge 12 which is lifted off the floor 2 in use. Both edges 11 and 12 can be provided with a seam 13 or 14, through which a rope 50 or 60 runs, which can be stretched in the longitudinal direction of the membrane web 10.

A plurality of traction cables 20 are fastened to the membrane web 10, each connecting the first edge 11 and the second edge 12 in the transverse direction of the membrane web 10. For this purpose, eyelets 15 and 16 can be provided on the first edge 11 and optionally also on the second edge 12. However, the pull cables 20 can also be fastened to the membrane web 10 in another way.

The pull cables 20 can be designed as high-strength steel cables, plastic fiber cables or the like. It is also possible to form these in the form of a band and to sew them with the opposite edges 11 and 12.

The pull cables 20 are spaced apart from one another in the longitudinal direction of the membrane web 10. The length of the pull cables 20 is smaller than the width of the membrane sheet 10 at the relevant point between the first and second edges 11 and 12. As can be seen in FIG. 1, the length of the pull cables 20 is matched to the width of the membrane sheet 10, that in the case of liquid 3 present on the membrane web 10, the section 10a of the membrane web 10 held by the pressure of the liquid at the bottom is larger in the transverse direction than the erected section 10b of the membrane web 10. This restricts the retention 1 using the weight of the liquid present held. The liquid pressure acting on the erected section 10b is supported by the pulling cables 20 on the liquid side of the membrane web 10, so that the retention 1 is self-holding when the liquid is present. The weight of the liquid is prevented

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AT 517 292 B1 2020-01-15 Austrian patent office also undermines membrane membrane 10.

The dimensions of the section 10a held on the ground and the traction cables 20 can in particular also be chosen such that the run-on length and traction cable lengths prevent water from penetrating into the subsurface by covering it adequately. The width of the section 10a of the membrane web 10 held on the bottom in the transverse direction is preferably at least twice the erected section 10b. Against this background, it is generally advantageous if the ratio of the length of the pull cable 20 to the width of the membrane web 10 at the point in question between the first and second edges 11 and 12 is chosen to be greater than 0.8 and preferably greater than 0.85 ,

In the event of an initial flooding of the first edge 11, the weight of the liquid present can sometimes be too low to press it sufficiently against the floor 2 or underground. For this reason, it may be expedient to weight the membrane web 10 in the region of the first edge 11 and / or additionally fix it to the floor 2 using fastening elements 40 such as hooks, nails and the like. For this purpose, the first edge 11 can have devices 17 for fixing the membrane sheet 10 on the bottom 2. These devices 17 can be designed, for example, as eyelets 15 without being limited thereto. If a rope 50 is used in the seam 13 of the first edge 11, it can also be fixed, for example, via this rope 50, which then serves as a fastening device 17.

The first edge 11 also has anchors 18 for the traction cables 20. For this purpose, for example, the aforementioned eyelets 15 or the rope 50 running in the seam 13 can be used. However, it is also possible to provide separate anchors 18 on the first edge 11 for the pull cables 20.

The retaining device 1 of the exemplary embodiment shown in FIG. 1 also has vertical supports 30 set up on the membrane sheet 10 for erecting the second edge 12. The vertical supports 30 are thus arranged like the traction cables 20 on the liquid side of the membrane web 10. In particular, they can be set up in such a way that their upper end sections 31 each support the second edge 12 in the region of the connection of the pull cables 20. For example, for this purpose the upper end section 31 of a vertical support 30 can support the associated traction cable 20 in the vicinity of the second edge 12, as is shown in FIG. 6. For this purpose, a guide groove 31a for the pull cable 20 can be provided on the upper end section 31. When the restraint device 1 is set up, the vertical supports are simply placed under the traction cables 20 in order to raise the second edge 12. The pull cables 20 run in the guide grooves 31a. In use, considerable pulling forces occur on the pull cables 20 due to the liquid pressure. These are derived via the vertical supports 30. To improve the introduction of force into the vertical supports 30, the traction cables 20 can be fixed to the vertical supports at least in the direction of pull. For this purpose, knots 21, gags or the like can be provided on the pulling cables 20 on the side of the vertical supports 30 facing the first edge 11, which knobs prevent the pulling cable 20 from slipping through the relevant guide groove 31a.

However, the second edge 12 can also be hooked into the upper end sections 31 of the vertical supports 30 with loops 16 located there or a rope 60 running in the hem 14 thereof, the pulling rope 20 preferably again being guided over the upper end section 31.

The vertical supports 30 spread the membrane web 10 in the manner shown in FIG. 1 to the liquid side in a sack-like manner. A curvature 19 is formed on the erected section 10b of the membrane web 10 by the pressure of the liquid present in the direction of the dry side of the membrane web 10.

The vertical supports 30 also each have a base 32 for wide-area support on the membrane sheet 10, so that when liquid is present, the resulting vertical compressive forces in the vertical supports 30 distribute weight over a large area through the membrane sheet

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AT 517 292 B1 2020-01-15 Austrian patent office can be directed to floor 2. In the embodiment shown in Figure 1, the membrane sheet 10 is continuous in the area of the support of the vertical supports 30. In Figure 1, a vertical support 30 is shown, which has a rod-shaped mast 33 which extends vertically upwards from a plate-shaped base 34 on the base to the second edge 12.

However, it is also possible to form the vertical supports 30 in a conical shape, for example as pylons made of plastic, as is shown by way of example in FIG. 2, so that here too there is a plate-shaped base 32 on the base with a large contact area. A guide groove 31a for a traction cable 20 can be provided on the upper end section 31 of such a conical pylon.

Figure 5 shows a modification of a vertical support 30 ', which is inserted through a passage opening 10c' provided in the membrane sheet 10 '. The section 35 'projecting downward through the passage opening 10c' serves to anchor the floor. Furthermore, a sealing element 36 'can be provided for sealing the vertical support 30' against the passage opening 10c '. This can be designed, for example, as a cross-sectional widening on the vertical support 30 'or as a separate elastic sleeve which is pressed into the sealing position by the liquid present.

The restraint devices 1 explained above offer a very simple and inexpensive replacement for conventional systems. They manage with a very small number of components, are light in weight and can be compactly folded and rolled up. This enables quick and easy assembly, which does not require any special previous knowledge, skills, assembly materials and fillers, as well as quick and complete dismantling. No support structures are needed on the dry side, which could stand in the way of obstacles.

The invention has been explained in more detail above on the basis of various exemplary embodiments and modifications. In particular, individual technical features, which were explained above in the context of further individual features, can be implemented independently of these and in combination with further individual features, even if this is not expressly described as long as this is technically possible. The invention is therefore expressly not limited to the exemplary embodiments and modifications described, but encompasses all the configurations defined by the claims.

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AT 517 292 B1 2020-01-15 Austrian patent office

LIST OF REFERENCE NUMBERS

Restraint

ground

liquid

membrane web

10a section held on the ground

10b erected section first edge second edge

hem

hem

eyelet

eyelet

Device for fixing the membrane membrane on the floor

Anchoring for a pull rope

bulge

rope

node

Vertical support upper end section

31a guide groove

base

Mast plate-shaped base

35 'downwardly projecting section

36 'sealing element

fastener

rope

rope

Claims (10)

1. Transportable retention device (1) for liquids, comprising: a flexible membrane sheet (10) with a first edge (11) for flooding by liquid to be retained and a second edge (12) that can be lifted off the floor, and Traction cables (20), which connect the first edge (11) and the second edge (12) to each other on a liquid side of the membrane web (10) in the transverse direction of the membrane web (10), the length of the respective traction cable (20) being less than the width of the membrane web (20) at the point in question between the first and second edges (11, 12) in order to apply a pressure of the liquid to be retained in the horizontal direction on an erected section of the membrane web (10) through the pulling cables (20) on the liquid side support, characterized by vertical struts (30) set up on the liquid side on the membrane web (10) for erecting the second edge (12) of the membrane web (10), an upper end section (31) of a vertical support (30) having the associated one on the second Edge (12) fasten the pulling rope (20) near the second edge (12). 2. Transportable retention device (1) for liquids according to claim 1, characterized in that the width of the section (10a) of the membrane web (10) held on the bottom in the transverse direction is at least twice the erected section (10b). 3. Transportable retention device (1) for liquids according to claim 1 or 2, characterized in that the ratio of the length of the traction cable (20) to the width of the membrane web (10) at the relevant point between the first and second edges (11, 12) is greater than 0.8 and preferably greater than 0.85. 4. Transportable retention device (1) for liquids according to one of claims 1 to 3, characterized in that the first edge (11) has devices (17) for fixing the membrane sheet (10) on the bottom. 5. Transportable retaining device (1) for liquids according to one of claims 1 to 4, characterized in that the first edge (11) has anchors (18) for the traction cables (20). 6. Transportable retention device (1) for liquids according to one of claims 1 to 5, characterized in that eyelets (15) are provided on the first edge (11) for anchoring the traction cables (20) and for fastening the membrane web (10) to the floor. 7. Transportable retention device (1) for liquids according to one of claims 1 to 6, characterized in that the vertical supports (30) have a base (32) for wide-area support on the membrane web (10), which is continuous in the area of the support of the vertical supports (30). 8. Transportable retention device (1) for liquids according to one of claims 1 to 7, characterized in that the vertical supports (10) are conical. 9. Transportable retention device (1) for liquids according to one of claims 1 to 6, characterized in that the vertical supports (30) through passage openings (10c ¹ ) provided in the membrane sheet (10) are inserted and each have a section (35 ') Form anchoring to the floor and preferably also provide sealing elements (36 ') for sealing the vertical supports (30) against the through openings (10c ¹ ). 10. Transportable retaining device (1) for liquids according to one of claims 1 to 9, characterized in that on the upper end portion (31) a guide groove (31a) is provided for the traction cable (20) and the traction cable (20) in the guide groove (31a) runs.