Anti-flood device
An anti-flood device intended to seal an opening, in particular of a building, including at least one parallelepiped panel forming a chamber which can be inflated by injecting a gas, comprising two rectangular main walls joined by a lower edge, an upper edge and two lateral edges. The inner faces of the main walls of the panel are connected to each other by connecting elements formed of threads of equal length, the ends of which are respectively secured to the main walls and which ensure that they are kept parallel when the panel is inflated. The lateral and lower edges of the panel are provided, at least partially, with an elastic deformable seal which is intended to be respectively compressed against the lateral walls of the opening and the base thereof, when the panel is inflated and installed in this opening.
1. An anti-flood device intended to seal an opening, comprising at least one parallelepiped panel forming a chamber which can be inflated by injecting a gas, comprising two rectangular main walls joined by a lower edge, an upper edge and two lateral edges, wherein:
inner faces of the main walls of the panel are connected to each other, at least partially, by connecting elements consisting of holding threads of equal length, ends of the holding threads are secured respectively to the main walls and which ensure that the main walls are kept parallel when the panel is inflated, and
the lateral and lower edges of the panel are provided, at least partially, with an elastic deformable seal which is intended to be compressed respectively against lateral walls of the opening and a base thereof, when the panel is inflated and installed in that opening,
wherein a base of the panel comprises a distribution density of the holding threads that is lower than that of the rest of the panel or wherein the base does not comprise holding threads over a height of between five and twenty centimeters.
2. The anti-flood device according to claim 1 , wherein the holding threads are formed by at least one bundle of elementary threads.
3. The anti-flood device according to claim 1 , wherein the tensile strength of the holding threads is greater than the tensile force exerted on them by the main faces under the effect of the inflation pressure.
4. The anti-flood device according to claim 1 , wherein the main walls of the panel consist of a cloth to which the holding threads are fixed, at least one face of this the cloth being covered externally with a watertight coating.
5. The anti-flood device according to claim 1 , wherein the main walls of the panel are joined by a border made of a flexible and watertight material forming the edges thereof.
6. The anti-flood device according to claim 5 , wherein the border is made in two parts, namely a border part forming the lower edge of the panel and a border part forming the lateral edges and the upper edge thereof.
7. The anti-flood device according to claim 6 , wherein lower corners of the panel formed by the border part forming the lower edge with the border parts respectively forming the lateral edges thereof are right angles.
8. The anti-flood device according to claim 7 , wherein the border part forming the lower edge of the panel and the border parts forming the lateral edges terminate contiguously in a “miter-cut”, each forming an angle equal to 45° which is open to the inside.
9. The anti-flood device according to claim 1 , wherein the seal is made in three parts, namely a lower seal element which is fixed to the lower edge of the panel and two lateral seal elements which are fixed to the lateral edges, these seal elements terminating in a “miter-cut”, each forming an angle equal to 45°.
10. The anti-flood device according to claim 1 , wherein the seal is made of natural rubber or synthetic rubber.
11. The anti-flood device according to claim 1 , wherein the seal has a cross-section in a shape of at least one isosceles trapezium trapezoid which is fixed by the base to the lateral and lower edges of the panel.
12. The anti-flood device according to claim 11 , wherein the cross-section of the seal is formed by two isosceles trapezoids arranged jointly side by side, leaving a volume between the respective tops.
13. The anti-flood device according to claim 1 , wherein the seal has an internal volume that is hollowed out by a cavity.
14. The anti-flood device according to claim 1 , wherein the anti-flood device comprises at least two panels arranged adjacently and coplanarly which are separated by a vertical profiled element with an “I”-shaped cross-section, the adjacent lateral edges of these panels being housed between two respective flanges of the profiled element so that respective lateral seal elements of the edges are applied against the web of said profiled element, when the panels are inflated and in place in the opening to be sealed.
15. The anti-flood device according to claim 14 , wherein the anti-flood device comprises a profiled element with a “U”-shaped cross-section having two profile wings, the spacing of the wings is such that the wings are applied against the upper part of the panels.
16. The anti-flood device according to claim 1 , wherein the base of the panel receives at least one sheet of flexible material which comprises a first part integral with a main face of the panel which is extended externally to the latter by a second part intended to be applied to the ground.
17. The anti-flood device according to claim 1 , wherein, at the base and/or on the lateral sides of the panel, the distribution density of the holding threads is lower than their distribution density in the rest of the panel.
18. The anti-flood device according to claim 1 , wherein the said base of the panel is filled with liquid.