Liquid retention device for equipment loaded onto a vehicle

Abstract

The present invention relates to a liquid retention device (1) intended to be loaded on an interior floor of a transport means and designed and configured to receive equipment loaded on said transport means, the liquid retention device (1) comprising: mounting means (26) for attaching the liquid retention device (1) to the loaded equipment and / or fastening means for attaching the retention device to the interior floor; an upper wall (3) designed and configured to support the equipment, the upper wall being provided with a plurality of through holes (4); and a liquid storage tank (5) arranged at least partially below the upper wall, the liquid storage tank being designed and configured to receive liquid passing through the through holes. Equipment for indoor floors of transport vehicles.

Description

[Technical Field]

[0001] The present invention relates to the general technical field of equipment for interior floors of vehicles, and more particularly to the general technical field of devices for supporting loaded materials and retaining liquids that escape from the loaded materials.

[0002] The invention more precisely relates to a liquid-retaining device intended to be loaded onto the interior floor of a vehicle and designed and configured to receive equipment, such as seats or stretchers, on board said vehicle, in particular during an evacuation mission.

[0003] The present invention also relates to a vehicle having an interior floor. [Background technology]

[0004] During missions to evacuate people from open water, it is often necessary to use helicopters equipped with a suspended stretcher. The stretcher is intended to be lowered from the helicopter into the water with the help of rescuers or a specialized operator, and the person to be rescued is then lifted into position on the helicopter's interior floor.

[0005] For this reason, it is known to install a water retention tray on the interior floor of a helicopter. This known retention tray is intended to support a stretcher submerged in seawater at the end of a rescue operation. Furthermore, this known retention tray forms a receptacle for collecting seawater flowing from the stretcher to prevent it from flowing uncontrollably inside the helicopter and damaging materials placed inside the helicopter, such as medical materials, or helicopter components, such as electronic components. This known retention tray has a bottom and edges covered with a waterproof membrane, and the stretcher is received on the bottom. Summary of the Invention [Problem to be solved by the invention]

[0006] Currently, this known tray implementation generally allows the assigned task to be accomplished, but is not entirely satisfactory.

[0007] Indeed, once the intervention at sea is completed, during the return journey, the stretcher remains submerged in the seawater contained in the holding trays for the entire return journey, which is a source of discomfort for victims and rescuers, who walk around in the seawater contained in the holding trays. In addition, in these situations there is a risk that rescuers will splash water inside the helicopter, thereby causing material damage. Furthermore, any sudden changes in the helicopter's attitude and the rotation of its blades will cause the seawater collected in the holding trays to sway, which poses a risk of splashing water not only on people but also on equipment, including sensitive equipment (e.g. electrical or electronic equipment).

[0008] Furthermore, considering the emergency situations in which rescues at sea are the most frequent, known holding trays have the drawback of being relatively fragile and not optimally durable, especially when the stretcher is docked onto the tray (which is generally done rather forcefully), as there is a risk of the waterproof membrane being ruptured.

[0009] Finally, draining known holding trays is generally a tedious and difficult task, which involves the risk of accidentally spilling some of the water into the helicopter. [Means for solving the problem]

[0010] The object assigned to the present invention is therefore to remedy the various drawbacks mentioned above and to propose a new liquid retention device intended to be loaded on the interior floor of a means of transport, which is particularly robust, reliable and durable, while making it possible to significantly reduce, if not eliminate, any problems caused by the liquid retained by said retention device.

[0011] Another object of the invention is to propose a new liquid-holding device intended to be placed on the interior floor of a vehicle, which is easy to use and can be quickly and easily installed.

[0012] Another object of the present invention aims to propose a new liquid-holding device intended to be loaded on the interior floor of a means of transport and capable of receiving a stretcher (or any other loaded equipment) in conditions of optimal safety and comfort, both for the person on the stretcher and for possible operators or rescuers around that person.

[0013] Another object of the invention is to propose a new liquid-holding device intended to be placed on the interior floor of a vehicle and which can be maintained easily and in conditions of optimum comfort and safety.

[0014] Another object of the invention is to propose a new liquid holding device intended to be loaded onto the interior floor of a means of transport, the drainage of which can be carried out easily and quickly at any convenient time.

[0015] Another object of the present invention is to propose a new liquid-holding device intended to be loaded onto the interior floor of a transport means and which, by design, is capable of safely supporting one or several external pieces of equipment, such as stretchers.

[0016] Another object of the invention aims at proposing a new liquid-holding device intended to be loaded on the interior floor of a means of transport and of particularly resistant and durable construction.

[0017] Another object of the invention is to propose a new liquid-holding device intended to be loaded on the interior floor of a vehicle, which is reliable over time and requires only minimal maintenance.

[0018] Another object of the present invention is to propose a new liquid holding device intended to be loaded on the interior floor of a vehicle and which, by design, is able to limit any unintentional spillage of liquid from the holding device, for example when the vehicle undergoes a sudden change in position.

[0019] Another object of the invention is to propose a new liquid-holding device intended to be loaded onto the interior floor of a vehicle, the production of which can be easily industrialized at reduced costs.

[0020] Another object of the invention aims at proposing a new liquid-holding device that is intended to be loaded on the interior floor of a means of transport and that is particularly light and compact.

[0021] Another object of the present invention is to propose a new liquid-holding device intended to be loaded on the interior floor of a vehicle, which is simple in construction and comprises only a limited number of separate parts.

[0022] Another object of the present invention aims at proposing a new means of transport, specially adapted to receive equipment such as stretchers on the interior floor in conditions of optimum safety and comfort.

[0023] The object assigned to the present invention is achieved by a liquid holding device intended to be loaded on the interior floor of a vehicle and designed and constructed to receive equipment, such as seats or stretchers, on board said vehicle, in particular during an evacuation mission, said holding device comprising at least - mounting means adapted to mount, preferably reversibly, the liquid retention device to the on-board equipment and / or fastening means adapted to mount, preferably reversibly, the retention device to the interior floor of the transport means, in particular to lashing rails mounted on said interior floor; - an upper wall designed and configured to support said equipment, said upper wall being provided with a plurality of through holes; - a liquid storage tank positioned at least partially below the top wall, the liquid storage tank designed and configured to collect liquid passing through the through-hole; Equipped with.

[0024] The object assigned to the present invention is also to provide a vehicle comprising an interior floor, further comprising at least one liquid retention device mounted on said interior floor, said liquid retention device being designed and configured to receive equipment, such as seats or stretchers, on board said vehicle, in particular during an evacuation mission, and at least - mounting means adapted to mount, preferably reversibly, the liquid retention device to the on-board equipment and / or fastening means adapted to mount, preferably reversibly, the retention device to the interior floor of the transport means, in particular to lashing rails mounted on said interior floor; - an upper wall designed and configured to support said equipment, said upper wall being provided with a plurality of through holes; - a liquid storage tank positioned at least partially below the top wall, the liquid storage tank designed and configured to collect liquid passing through the through-hole; The object is also achieved by a means of transportation comprising:

[0025] Other characteristics and advantages of the invention will appear in more detail on reading the following description, given purely by way of illustrative and non-limiting example, with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0026] [Figure 1] 1 shows a schematic top perspective view of a liquid retention device according to the invention in a particular embodiment; FIG. [Figure 2] FIG. 2 is a diagram schematically illustrating the liquid retention device of FIG. 1 in a bottom perspective view. [Figure 3]2 is a schematic perspective view of an enlarged detail of the elements of the holding device of FIG. 1 that are enclosed in dashed lines in FIG. 1, with the difference that the tight well and the elements therein are not shown. [Figure 4] 2 is a schematic representation of the liquid retention device of FIG. 1 in a top perspective view, with the difference that it is shown without the top wall. [Figure 5] 5 shows a schematic perspective view of an enlarged detail of the elements of the holding device of FIG. 4 that are enclosed in dashed lines in FIG. 4, with the difference that the liquid-tight holes and the elements therein are not shown. [Figure 6] FIG. 2 is a diagram schematically illustrating the liquid retention device of FIG. 1 in a top view. [Figure 7] 7 shows a schematic cross-sectional view of the holding device of FIGS. 1 and 6 along plane AA. FIG. [Figure 8] 8 shows in perspective view an enlarged detail of the elements of the holding device of FIG. 7 that are enclosed in dashed lines in FIG. 7. FIG. [Figure 9] 2 shows a schematic cross-sectional view of a set of elements of the retaining device of FIG. 1, here a liquid-tight hole and the elements therein, as well as a lashing rail and the interior floor of the means of transport, along the plane AA. [Figure 10] 2 shows a schematic perspective view of an element of the holding device of FIG. 1, here a liquid-tight hole and an element therein; FIG. [Figure 11] 1 shows a schematic top perspective view of a liquid retention device according to the invention in another particular embodiment; FIG. [Figure 12] 12 shows a schematic perspective view of the liquid holder of FIG. 11, with the difference that it is represented without the top wall and the section taken on the plane BB is not visible. [Figure 13] 13 is a schematic perspective view of the holding device of FIG. 12 with an enlarged detail of the elements enclosed in dashed lines in FIG. 12; FIG. [Figure 14]1 is a schematic top perspective view of a liquid retention device according to the invention in another particular embodiment, the liquid retention device being shown loaded onto the interior floor of a vehicle, with four liquid-tight holes omitted to show four through apertures of the storage tank, each intended to receive a liquid-tight hole within which a fastening means can be positioned to attach the liquid retention device to the interior floor of the vehicle. [Figure 15] FIG. 15 is a diagram schematically illustrating the liquid retention device of FIG. 14 in a top view. [Figure 16] FIG. 16 is a bottom view of the liquid retention device of FIGS. 14 and 15. [Figure 17] FIG. 17 is a cross-sectional view of a portion of the liquid retention device of FIGS. 14 to 16, taken along plane CC (see FIG. 15), with the top cut at the plane. [Figure 18] FIG. 18 is a cross-sectional view of a portion of the liquid retention device of FIGS. 14 to 17, taken along plane CC (see FIG. 15), with the top cut at the plane. DETAILED DESCRIPTION OF THE INVENTION

[0027] According to a first aspect shown in the figures, the present invention relates to a liquid retention device 1 intended to be loaded onto an interior floor 2 of a means of transport. The liquid retention device 1 is therefore separate from the interior floor 2 on which it is intended to be placed. A specific embodiment of the liquid retention device 1 is shown in Figures 1 to 13, and another specific embodiment is shown in Figures 14 to 18. Unless otherwise stated below, technical features described below in relation to a first of said embodiments are interchangeable mutatis mutandis for other of said embodiments, even if some of said features are not necessarily shown in the figures related to any one of said embodiments, and vice versa. For simplicity's sake, common references to the figures will be used below to indicate identical or similar elements in each of these specific embodiments.

[0028] The vehicle is preferably an aircraft, more particularly a rotorcraft, and even more particularly a helicopter, such as a rescue or evacuation helicopter. Alternatively, the vehicle may be an airplane, or a land vehicle such as an ambulance, truck, utility vehicle, van, or a ship.

[0029] According to the present invention, the liquid holding device 1 is further designed and configured to receive on-board equipment (not shown), such as a seat or a stretcher, carried on the vehicle, in particular during an evacuation mission. More specifically, an evacuation mission involves the rescue of a person from a body of water, in particular from the sea (including on a ship), or from a lake, river, or stream. The rescue of the person may alternatively be carried out on dry land. The on-board equipment includes, for example, a stretcher, but may also include passenger seats or other equipment of the vehicle. The on-board equipment is particularly bulky and heavy, having relatively large dimensions, e.g., lengths, of, for example, 100 cm or more, preferably 150 cm or more. The on-board equipment has a mass of 10 kg or more, preferably 15 kg or more, more preferentially 20 kg or more, and even more preferably 60 kg or more, especially if the on-board equipment is a stretcher carrying the person to be evacuated. The dimensions of the holding device 1 are preferably adapted to support the entire on-board equipment, i.e., the holding device 1 is configured to be interposed between the interior floor 2 of the vehicle and the on-board equipment. The holding device 1 has relatively large dimensions (such as its length), for example, one meter or more. Obviously, the liquid holding device 1 can be designed and configured to receive multiple on-board equipment (stretchers, passenger seats, equipment boxes, medical equipment, etc.) as described herein.

[0030] According to a particular embodiment, the on-board equipment comprises, for example, a stretcher that is immersed in water during the rescue of a person from the sea (or another body of water). The person is therefore placed on the stretcher, and the stretcher is then transported (e.g., carried by helicopter) in a transport means, for example a helicopter, to evacuate the rescued person. In this latter particular case, or in other situations, the liquid comprises, for example, water, but may also comprise another liquid substance. The on-board equipment may further comprise one or several passenger seats in which the rescuer, who is also wet after rescuing the person from the sea, may sit. The liquid retention device 1 is therefore advantageously designed to capture and retain liquid (in particular water) flowing from the wet stretcher and / or from the passenger seats and / or from any other equipment that is immersed in water during the rescue and evacuation of the stretcher-loaded person. The retention of this liquid, especially rich salt water, can reduce discomfort for rescuers and evacuated persons while preventing possible deterioration of sensitive components (especially electrical and electronic components) of or on board the vehicle (especially helicopters), which may be equipment boxes or any other type of on-board equipment.

[0031] For example, the liquid may comprise or be formed from water (in particular seawater), oil, hydrocarbons, blood, detergent, another fluid in liquid form, or a mixture of several of these substances. The liquid may be contaminated and / or contaminated and must therefore be stored in a controlled manner by the holding device 1.

[0032] According to the present invention, the liquid holding device 1 comprises at least: - an upper wall 3 designed and constructed to support said equipment, said upper wall 3 being provided with a plurality of through holes 4; a liquid storage tank 5 arranged at least partially below said top wall 3, said liquid storage tank 5 being designed and configured to collect the liquid passing through said through-holes 4; Equipped with.

[0033] The upper wall 3 is therefore advantageously intended to receive the full weight of the onboard equipment, in particular the full weight of a stretcher, which is preferably wetted, for example with seawater. The upper wall 3 advantageously has a generally flat surface. The storage tank 5 is advantageously liquid-tight, i.e. preferably comprises walls designed to be impermeable to liquids. The storage tank 5 is advantageously designed in such a way that its liquid-tightness can be controlled, i.e. there can be liquid drainage means, including, as will be seen later, for example, drainage holes made in one of the walls of the storage tank 5.

[0034] Advantageously, the top wall 3 is formed by at least one plate provided with said through holes 4, which penetrate the entire thickness of said plate. Said through holes 4 are, for example, circular in shape, as shown in the figure, and in certain embodiments form perforations. The liquid storage tank 5 advantageously forms a tray, which preferably has its own mechanical strength, i.e. the liquid storage tank 5 preferably has a certain rigidity (but possibly also a certain flexibility) and in particular is not flaccid. Advantageously, the top wall 3 is positioned at least partly, preferably completely, within said storage tank 5 (and therefore within said tray).

[0035] The through holes 4 are preferably relatively small and discrete, e.g., having a diameter of less than 2 cm, preferably less than 1.5 cm, and greater than 0.2 mm. The upper wall 3 has a width of, e.g., 40 cm or more, preferably 50 cm or more, and a length of, e.g., 100 cm or more, preferably 150 cm or more. The upper wall advantageously has a thickness of less than 3 cm, preferably less than 2 cm, e.g., 0.5-1.5 cm. The upper wall 3 is preferably disposed within the storage tank 5, which advantageously has a width and length that are substantially conjugate with and / or similar to (e.g., within a 15% tolerance) the width and length of the upper wall 3. The through holes 4 are preferably distributed substantially regularly on the upper wall 3, preferably over at least 50% of the upper wall 3, more advantageously over at least 70% of the upper wall 3, e.g., about 80% (±5%) of the upper wall 3.

[0036] Thus, as shown in the figures, the storage tank 5 advantageously comprises at least a bottom 6 from which, in the particular embodiment specifically shown in Figures 4, 5, 7, and 8, extend a plurality of protrusions 7 that are distinct and spaced apart from one another and on which the top wall 3 is supported. Thus, each protrusion 7 advantageously extends upward from the bottom 6 and forms a projection against which the top wall 3 contacts. The protrusions 7 have a substantially rectangular or square (horizontal) cross-section in the embodiments shown in Figures 4, 5, 7, and 8, but their cross-sections may also be round, circular, oval, triangular, or any other suitable shape. Thus, the protrusions 7 have, for example, a generally tile-like or cubic, pyramidal, or cylindrical shape. The protrusions 7 operate, in particular, to impede or prevent liquid from flowing out of the storage tank 5 while the vehicle is in motion, for example during acceleration and / or changes in tilt angle of the vehicle.

[0037] The bottom 6 has, for example, the shape of a plate, as shown in particular in FIG. 2 . The bottom 6 is intended in particular to be supported on the interior floor 2 of the means of transport. Advantageously, the storage tank 5 comprises at least one tank rim 8, which is designed to hold the liquid inside the storage tank 5. Obviously, the tank rim 8 preferentially extends upward from and / or around the periphery of the bottom 6. More precisely, the tank rim 8 is connected to the bottom 6 and may even be integral with it. The bottom 6 and the tank rim 8 in particular form a tray (preferably as described above) that opens outwardly and upwards, the opening of which is preferably designed to receive, preferably removably, the top wall 3. The tank rim 8 preferably extends upward over the periphery of the top wall 3, preferably against and connected to the top wall 3. The tank rim 8 preferably extends upward (vertically) by more than 5 cm, more preferentially by more than 10 cm. Thus, as shown in the figure, the tank rim 8 advantageously extends up to a flange 8A arranged at a height higher than the respective height of the top wall 3 so as to prevent liquid present on the top wall 3 from flowing over the tank rim 8. The storage tank 5 is therefore advantageously designed to store liquid by means of at least said tank rim 8 and said bottom 6. Said top wall 3 is advantageously configured to receive on-board equipment and to allow liquid to pass into said storage tank 5 by means of said through holes 4, and subsequently to retain the liquid in said storage tank 5 by forming a kind of lid on and / or inside said storage tank 5.

[0038] Preferably, the storage tank 5 has storage gaps 9 between the protrusions 7, which are intended to collect liquid that has passed through the through-holes 4. The protrusions 7 are preferably distributed over more than 60% of the bottom 6, more preferentially over 80% of the bottom 6, and even more preferentially over 90% of the bottom 6. The storage gaps 9 therefore advantageously have a (conjugate) distribution similar to that of the protrusions 7. Preferentially, the storage gaps 9 are (fluidically) in communication with one another so as to form a storage space between the bottom 6 and the upper wall 3, preferably formed by a plurality of fluidly communicating channels. The storage gaps 9 are obviously advantageously located between the upper wall 3 and the bottom 6. These storage gaps 9 are preferably intended to collect liquid flowing from the through-holes 4, while the protrusions 7 limit the movement of liquid within the holding device 1, thereby limiting or even preventing accidental spillage of liquid from the holding tray 1, in particular during movement of the vehicle, for example during sudden changes in the attitude of a helicopter.

[0039] Advantageously, the holding device 1 is configured such that the through-holes 4 mainly, preferably almost completely or completely, face the storage gap 9. The protrusions 7 preferably do not mainly, more preferentially almost completely or completely, face the through-holes 4. Such a configuration facilitates the flow of liquid from the on-board equipment through the through-holes 4 into the storage tank 5 (more particularly into the storage gap 9).

[0040] Advantageously, the top wall 3 is intended to extend substantially horizontally. The bottom 6 is preferentially also intended to extend substantially horizontally. The tank edge 8 is preferably intended to extend vertically, and more advantageously, substantially perpendicular to the bottom 6, although it is also possible for the tank edge 8 to extend substantially obliquely, and to extend obliquely to the bottom 6. The holding device 1 is preferably configured such that the bottom 6 and the top wall 3 extend substantially parallel to each other. Advantageously, the bottom 6 is intended to be supported in contact with and substantially parallel to the interior floor 2 of the vehicle. It is also conceivable that the top wall 3 forms the top of the tank 5, while the bottom 6 forms the bottom of the tank and the tank edge 8 forms the side. The tank rim 8 advantageously projects above the upper wall 3 in order to form a safety stop for the equipment mounted on it when loaded onto the upper wall 3 and / or to better retain the liquid in the retention device 1 (a higher rim obviously retains more liquid). The preceding and following preferential spatial descriptions (especially with regard to the vertical and horizontal directions) conventionally assume that the interior floor 2 of the vehicle is substantially horizontal, but in view of the frequent changes in position of said vehicle, this is obviously not always correct and therefore it is also possible conventionally to consider the interior floor 2 of the vehicle to be horizontal (and / or to define the horizontal direction).

[0041] Preferably, the top wall 3 has a wall edge 10 that is permanently (e.g., by ultrasonic welding, gluing, and / or screwing) or removably connected to the storage tank 5. More precisely, the wall edge 10 is advantageously connected to the tank edge 8. As shown in particular in Figure 1, the wall edge 10 comprises, for example, four perimeter sides, including two long sides (substantially parallel) and two short sides (substantially parallel), the long sides being substantially perpendicular to the short sides. The tank sides (tank edges) 8 advantageously run at least partially along the wall edge 10. Naturally, other shapes of the top wall 3 are conceivable, such as, for example, the shapes of the top wall 3 of the embodiments of Figures 14 to 18.

[0042] Generally, as contemplated as an alternative above, the removable assembly of the top wall 3 to the storage tank 5 (whether via the wall edge 10 of the top wall 3 or not) provides the possibility to replace the top wall 3 as needed, particularly if the top wall 3 becomes worn, damaged, or even to replace a given top wall 3 with another top wall 3 made from a different material and / or a material having a different surface aspect (e.g., a non-slip surface) that is better adapted to the particular use desired for the liquid retention device 1. The storage tank 5 can itself remain in place on the interior floor 2 of the vehicle. Furthermore, the removable nature of the top wall 3 allows access to the interior of the storage tank 5, particularly for maintenance and cleaning purposes.

[0043] Preferentially, as shown in Figure 7, the storage gaps 9 have a variable depth. In particular, for a given (horizontal) dimension, storage gaps 9 located close to a wall edge 10 have a shallower depth than other storage gaps 9 located further away from the wall edge 10. Such a configuration gives the liquid retention device 1 better mechanical strength and, inter alia, makes it possible to retain a significant proportion, in particular the majority, of the liquid in a central region of the storage tank 5, thereby significantly limiting the risk of unwanted spillage of liquid from the retention device 1 (and thus onto the interior floor 2) in the event of a sudden movement or tilting of the transport means. The depth is preferably measured in alignment with the upper wall 3.

[0044] Particularly advantageously, the top wall 3 has a surface 11 free of through holes 4 extending from the wall edge 10. The surface 11 free of through holes 4 advantageously forms a peripheral portion 11 of the top wall 3, which peripheral portion 11 preferably goes (all the way) around the periphery of the top wall 3. The surface 11 free of through holes 4 therefore advantageously extends in alignment with each wall edge 10 over a respective edge distance D from the wall edge 10. The edge distance D is, for example, at least 5 cm, preferably at least 7 cm, for example at least 10 cm (±1 cm). According to an advantageous embodiment, the edge distance D is at least 1 / 10, preferably at least 1 / 8 of the dimension of the top wall 3 considered in alignment with the wall edge 10, for example the width or the length of the top wall 3. For example, aligned with each wall edge 10 having the width of said top wall 3, said surface 11 without through holes 4 extends from the wall edge 10 over at least an edge distance D equal to at least 1 / 6 of the width of the top wall 3.

[0045] Preferably, the storage tank 5 is at least partly made of closed-cell foam. Particularly advantageously, the protrusions 7 (which are part of the storage tank 5 as described above) are made of said foam. The bottom 6 may also be made at least partly of said foam. The closed-cell foam preferentially has a viscosity of 30 to 120 kg / m 3 density, preferably 35 to 80 kg / m 3 density, for example, about 47 kg / m 3 (±3kg / m 3) density. As can be seen in Figures 7 and 8, the upper wall 3, which is advantageously supported by protrusions 7, is therefore preferentially designed to abut against the foam, and a set of protrusions 7 formed by the foam provides a particularly stable support for the upper wall 3 and also provides the possibility of cushioning when positioning equipment on the upper wall 3, which is particularly important when the equipment is a water-soaked stretcher carrying a rescued person who may be injured or unwell and who needs to be handled carefully. The storage tank 5 can be made at least in part from a polymer such as polyester (e.g., closed-cell foam as described above, or another polymer), which preferably has good resistance and mechanical strength in itself, as long as it has a certain thickness (e.g., 1 cm or more). Particularly advantageously, the protrusions 7 (which are part of the storage tank 5 as described above) are made from the polymer (or from several polymers). Such a configuration including foam and / or polymer provides the holding device 1 with good liquid storage capacity, good mechanical resistance, and also reduces the mass of the holding device 1. The storage tank 5 may be at least partially or additionally made of metal, for example aluminum and / or steel. It is preferable that the retention device 1 is somewhat lightweight, especially if it is fastened to the interior floor 2 of the aircraft.

[0046] Preferably, the storage tank 5 comprises at least one drainage means 12 having at least one hole 13 (or drain hole) opening to the outside (of the storage tank 5), as well as an opening / closing member for selectively controlling the drainage of the liquid collected by the storage tank 5 from the storage tank 5 through the hole 13. As an alternative implemented in the embodiment of Figures 1 to 13, the opening / closing member may include removable means (not shown) for blocking the through hole 13. The through hole 13 is configured so that, after operation of the opening / closing member, the liquid collected by the storage tank 5 flows out of the storage tank 5 when it is unplugged or at least placed in fluid communication with the interior of the storage tank 5. The drainage means 12 comprises, for example, a duct 14 having a first end 15 leading to the interior of the storage tank 5 and a second end 13 opposite the first end 15 and leading to the outside of the tank, as particularly shown in Figure 1, the second end 13 forming the through hole 13, for example, as shown in Figure 4. As an alternative, the first end 15 forms the through hole 13, but it is also possible to envisage that the duct 14 itself forms the through hole 13. As another alternative implemented in the embodiments of Figures 14 to 18, the opening and closing member may include a gate valve 32. In this alternative, as shown by way of example in Figure 17, the drainage means 12 may typically comprise a duct 14 having a first end 15 leading to the interior of the storage tank 5 and an opposite second end connected to the inlet of the gate valve 32, so that the outlet of the gate valve 32 advantageously forms the through hole 13.

[0047] The first end 15 is formed or located, for example, on the bottom 6 and / or on the tank rim 8. Such an arrangement makes it possible to empty the storage tank 5 of liquid as quickly as possible, for example when the vehicle is moving, in particular during the evacuation of people rescued (for example at sea) on stretchers (which then at least partly constitute the equipment). Naturally, the drainage means 12 may also comprise several ducts 14 (for example two) as described above.

[0048] Preferably, the liquid retention device 1 comprises protective stringers 16 (or protective flanges) fixed to (or at least assembled to) the edges (or sides) of the storage tank 5, in particular to protect the storage tank 5 from crushing caused by said equipment when said equipment is placed on the retention device 1. In fact, equipment is often "thrown" or roughly slid onto the retention device 1, in particular when the equipment is docked to the top wall 3, and this is often done without precautions due to certain circumstances (emergencies during people evacuation, unstable helicopter attitudes, weight of equipment especially when including stretchers carrying people, heavy and awkward positioning of passenger seats, etc.). Advantageously, the liquid retention device 1 is intended to be loaded onto the vehicle with the protective stringers 16 facing away from the opening 33 of the vehicle, as shown by way of example in Figure 14. Said protective stringer 16 therefore advantageously forms a "bumper" or protective step for the edge of the storage tank 5 against which the equipment to be loaded contacts, and possibly rests, when said equipment is introduced into the vehicle through the vehicle opening 33. Furthermore, it is conceivable that the protective stringer 16 follows substantially the entire contour of the storage tank 5, and not just part of it as in the embodiment shown in the figures.

[0049] Preferably, the protective stringer 16 is made of metal (such as aluminum, steel, or an alloy), polymer, and / or wood. The material forming the protective stringer is preferentially robust and has particularly good crush resistance, in particular better crush resistance than the rest of the retention device 1, in particular better crush resistance than the foam. According to the particular example illustrated in particular in FIG. 1 , the protective stringer 16 preferably comprises a plate-like portion 34 configured to be placed on the interior floor 2 of the vehicle and / or to be positioned in an opening in the vehicle. Advantageously, the plate-like portion can form slopes or flanks 34 to facilitate loading of equipment onto the liquid retention device 1, for example from outside the vehicle, and / or to guide the flow of liquid from the storage tank 5 through the through-holes 13 of the drainage means 12, for example towards the outside of the vehicle. The drainage means 12 is, for example, positioned in part of the protective stringer 16, in particular on or in the protective stringer 16. Such an arrangement makes it possible to at least partially conceal and / or house said drainage means 12, in particular said duct 14.

[0050] According to an alternative embodiment of the present invention, the liquid retention device 1 comprises at least one fastening means 17 configured to reversibly attach the retention device 1 to the interior floor 2 of the vehicle, in particular to a lashing rail 18 mounted on said interior floor 2. The implementation of such a fastening means 17 makes it possible to limit, and preferably completely prevent, relative movement between the liquid retention device 1 and the interior floor 2 of the vehicle, in particular as a result of movement of the moving vehicle (in particular changes in the tilt angle and / or acceleration, etc.). This in particular allows for a practical, reliable, and secure implementation of the liquid retention device 1. The fastening device 17 comprises, for example, a pin with a head designed to engage with said lashing rail 18 and then reversibly lock it, such locking being known per se. The lashing rail 18 is preferably fixed to the interior floor 2 of the vehicle, for example using screws and welds. Alternatively, the lashing rail 18 may be arranged directly on the interior floor 2 of the vehicle.

[0051] Preferentially, the liquid holder 1 comprises at least one liquid-tight hole 19 penetrating the upper wall 3 and the storage tank 5. Advantageously, the fastening means 17 is positioned in the liquid-tight hole 19. This advantageously allows the liquid holder 1 to be fastened to the interior floor 2 of the transport means via the storage tank 5 without disturbing the liquid-tightness of the storage tank 5. This further allows the liquid holder 1 to be fastened particularly easily, practically and efficiently to the interior floor 2 of the transport means, in particular to lashing rails 18 attached to the interior floor 2, more advantageously regardless of the size and shape of the liquid holder 1. In particular, it is possible to design a liquid holder 1 that has a size such that it can cover substantially the entire surface of the interior floor 2 of the transport means in order to protect the interior floor 2 at best, but that can still be easily fastened to the lashing rails 18 of the interior floor 2. Advantageously, the liquid retention device 1 can be provided with a plurality of liquid-tight holes 19, which are arranged relative to one another at a center distance corresponding to the center distance of each of a plurality of lashing rails 18 that can be attached to the interior floor 2.

[0052] The liquid holder 1 further advantageously comprises a removable plug 20 configured to liquid-tightly seal the liquid-tight hole 19, the plug 20 being configured to be arranged in and / or on the liquid-tight hole 19 from the outside of the top wall 3. The liquid-tight hole 19 comprises, for example, at least one first collar-like flange 21 inserted into a first through-opening 22 of the storage tank 5, the first through-opening 22 not communicating with the storage gap 9. The liquid-tight hole 19 in particular comprises a second flange 23, such that the top wall 3 is clamped between the first flange 21 and the second flange 23, the clamping taking place around a second through-opening 24 of the top wall 3. The second flange 23 may, for example, be in the form of a (flat) ring. The first and second through-openings 22, 24 naturally advantageously coincide with each other. Such an arrangement is particularly shown in FIG. 8. Advantageously, the plug 20 is configured to be fastened in the liquid-tight hole 19, advantageously removably, at least partially, preferably on the side of the second flange 23 (i.e., from the outer surface of the top wall 3 and not from the outer surface of the bottom 6). The plug 20 comprises, for example, a third disk-shaped flange and an O-ring 25 surrounding the third flange, the O-ring 25 being designed to ensure a liquid-tight seal between the third flange and the first flange 21 (and more generally between the plug 20 and the liquid-tight hole 19). The plug 20 preferentially isolates the fastening means 17 from the upper part of the holding device 1 within the liquid-tight hole 19. The plug 20 is preferentially configured to be removably attached to the fastening means 17 at the upper part of the fastening means 17. Such an arrangement makes it possible in particular to prevent the fastening means 17 and / or the interior floor 2 from being immersed in the liquid. The liquid-tight holes 19 are advantageously liquid-tight at their lateral edges, but preferably with a plug 20 completing the liquid-tightness of said liquid-tight holes 19, for example at the open end of said liquid-tight holes 19. Obviously, said holding device 1 can comprise several liquid-tight holes 19 as described above, in particular at least four liquid-tight holes 19. This makes it possible to provide for fastening the liquid-tight device 1 to the interior floor 2 of the vehicle at several points via several fastening means 17, each positioned in one of said liquid-tight holes 19.It is also possible that the liquid-tight bore 19 or at least one of the liquid-tight bores 19 does not contain a fastening means 17 but is intended to serve as a reservoir receptacle, for example for an interventional instrument.

[0053] In another alternative form of the invention, the liquid holder 1 comprises, in addition to or instead of said fastening means 17, at least one attachment means 26 configured to attach said holder 1 to said mounted equipment, preferably reversibly. In other words, the liquid holder 1 comprises attachment means 26 configured to at least temporarily attach the mounted equipment to the liquid holder 1, and thus to limit (if not completely prevent) the risk of relative movement between the mounted equipment and the liquid holder 1, in particular as a result of movements of the mobile vehicle (in particular changes in tilt angle and / or acceleration, etc.). Said attachment means 26 therefore advantageously make it possible to fix the mounted equipment in place on the upper wall 3 of the liquid holder 1, in particular to prevent liquid from dripping from the liquid holder 1, typically onto the interior floor 2 of the vehicle. Advantageously, said attachment means 26 are separate from and from the through-holes 4 in the upper wall 3, so that in particular one set of through-holes 4 advantageously continues to allow liquid to flow freely towards the storage tank 5. According to a particular embodiment shown in FIGS. 1 to 10 , the attachment means 26 is at least partially positioned in or on the liquid-tight hole 19. The attachment means 26 is preferentially designed to be attached to the liquid-tight hole 19, more preferably reversibly. According to a particular embodiment compatible with the preceding embodiment, the bung 20 carries the attachment means 26. According to another particular embodiment, also compatible with the preceding embodiment, the attachment means 26 is configured to be fastened to the liquid-tight hole 19, in particular to the second flange 23, optionally on the second flange 23. The attachment means 26 may optionally comprise a fastening rod 27 connecting two liquid-tight holes 19, the fastening rod 27 being configured, for example, to receive equipment, in particular a stretcher. Preferably, the liquid holder 1 comprises a device penetrating both the top wall 3 and the storage tank 5, the penetrating device together with both the fastening means 17 and the bung 20 optionally forming the attachment means 26.

[0054] In summary, advantageously, the fastening means 17 are (removably) fastened to the lashing rails 18 themselves, which are (permanently) fastened to the floor 2, and the fastening means 17 are more preferably attached to said liquid-tight holes 19, while the plugs 20 are advantageously (removably) fastened to said liquid-tight holes 19 and / or to the fastening means 17, and said attachment means 26 are themselves (removably) fastened to said plugs 20 and / or to said liquid-tight holes 19. Such an arrangement provides for an indirect connection of the equipment to the floor 2 and for the connection of the floor 2 / retaining device 1 formed by the lashing rails 18 and the fastening means 17 to be kept dry and protected from liquids, thereby giving the retaining device 1 a good reliability in terms of its fastening to the equipment and / or to the floor 2. Advantageously, the plugs 20 are removable, and the retaining device 1 is configured in such a way that the plugs 20 can be removed from the holes 19. This advantageously allows access to the fastening means 17 in the holes 19 in order to lock or unlock the fastening means 17 to the lashing rail 18 .

[0055] According to a particular alternative embodiment of the invention, shown in Figures 11 to 13, the liquid holder 1 comprises, below the top wall 3 and within the storage tank 5, absorption means 28, such as a sponge material, configured to absorb the liquid flowing from said through-holes 4. As mentioned above, the storage tank 5 preferably comprises a bottom 6 which advantageously has the shape of a plate. The holder 1 advantageously comprises, according to the particular embodiment mentioned above, pressing means 29, 30, 31 configured to press said absorption means 28 against said bottom 6 in order to extract previously absorbed liquid from said absorption means 28. In particular, the pressing means 29, 30, 31 comprise at least one pressing plate 29 positioned between said top wall 3 and said absorption means 28. Said pressing plate 29 is therefore preferably substantially flat and is intended to press the absorption means 28 against the bottom 6 in order to extract the absorbed liquid therefrom. The absorption means 28 is formed, for example, by a layer of sponge material of a certain thickness, for example having a generally rectangular or round shape, interposed between the bottom 6 and the pressure plate 29. Preferentially, the pressure means 29, 30, 31 comprise at least one actuator 30, for example a pneumatic or hydraulic cylinder, which is connected to the pressure plate 29. The actuator 30 is more advantageously connected to the top wall 3. In other words, one end of the actuator 30 is connected to the top wall 3, while the opposite end is connected to the pressure plate 29. The actuator 30 is therefore preferably configured to be operated to abut the top wall 3 so as to press the pressure plate 29 against the absorption means, in order to press the absorption means against the bottom 6. The pressure means 29, 30, 31 comprise, for example, a hydraulic, pneumatic or hydro-pneumatic system 31 (or also an electrical system) for operating the actuator 30. Obviously, said pressing means 29, 30, 31 may comprise several actuators 30 as described above, for example at least four actuators 30.

[0056] According to a particular alternative embodiment of the invention, not shown but very similar to the preceding alternative, the absorption means 28 are arranged in the storage gap 9. In this case, the absorption means 28 advantageously have the shape of a grid, for example formed by a grid of sponge material. The pressure plate 29 is therefore preferentially arranged in the storage gap 9. The pressure plate 29 also therefore has a shape that is preferably in the shape of a grid, for example formed by a metal or polymer grid.

[0057] Advantageously, the liquid holder 1 has a lower surface 35 intended to face the interior floor 2 of the means of transport when the liquid holder 1 is loaded on said interior floor 2, and this lower surface 35 is at least locally provided with a sealing gasket 36 (or "barrier element"), in particular against liquids. The sealing gasket 36 is advantageously intended to be interposed between the lower surface 35 of the liquid holder 1 and the interior floor 2 of the means of transport, in a state compressed against the interior floor 2, when the liquid holder 1 is loaded on said interior floor 2. The implementation of such a sealing gasket 36 advantageously makes it possible to limit, if not completely prevent, the penetration of liquid and / or various impurities (mud, dust, etc.) between the liquid holder 1 and the interior floor 2. Indeed, such penetration is particularly likely to cause problems of soiling of the means of transport or even corrosion of the interior floor 2. According to an alternative (not shown), the sealing gasket 36 can follow substantially the entire peripheral contour of the lower surface 35 of the liquid holder 1. According to another alternative (not shown), the sealing gasket 36 can cover substantially the entire surface of the underside 35 of the liquid holder 1. According to yet another alternative, which will be described in more detail below in connection with the embodiment of Figures 14 to 18, the sealing gasket 36 may be arranged locally in certain areas of the underside 35 of the liquid holder 1, in particular in the vicinity of the drainage means 12 of the storage tank 5, in order to particularly limit the risk of ingress of liquid exiting through the holes 13 of the drainage means 12 between the liquid holder 1 and the interior floor 2. According to an alternative which is advantageous in terms of simplicity of design and implementation, the sealing gasket 36 is made of an elastically and / or plastically deformable material, so that the sealing gasket 36 deforms under compression against the interior floor 2 and therefore also provides excellent liquid-tightness.

[0058] The invention now consists in a liquid holding device 1 intended to be loaded on the interior floor 2 of a vehicle and designed and constructed to receive equipment, such as seats or stretchers, carried on board said vehicle, in particular during an evacuation mission, said liquid holding device 1 comprising at least - an upper wall 3 designed and constructed to support said equipment, said upper wall 3 being provided with a plurality of through holes 4; a liquid storage tank 5 arranged at least partially below said top wall 3, said liquid storage tank 5 being designed and configured to collect the liquid passing through said through-holes 4; a lower surface 35 provided at least locally with a sealing gasket 36, said sealing gasket 36 intended to be interposed between said lower surface 35 and the interior floor 2 of the means of transport in a state of compression relative to said interior floor 2 when the liquid-holding device 1 is loaded onto said interior floor 2; It should be noted that

[0059] Such a liquid holding device 1 does not necessarily have attachment means 26 configured to attach, preferably reversibly, the liquid holding device 1 to the on-board equipment and / or fastening means 17 configured to attach, preferably reversibly, the holding device 1 to the interior floor 2 of the transport means, in particular to lashing rails 18 attached to the interior floor 2.

[0060] Advantageously, the liquid retention device 1 is designed and configured in such a way that the compression of the sealing gasket 36 against the interior floor 2 of the vehicle results not only from the own weight of the liquid retention device 1, but also from the implementation of one or several means 17 for fastening the retention device 1 to the interior floor 2 of the vehicle (for example as in the embodiment of Figures 14 to 18). In other words, said fastening means 17 are therefore provided for fastening the retention device 1 to the interior floor 2 of the vehicle while ensuring compression of the sealing gasket 36 against the interior floor 2. Depending on the design and configuration of the sealing gasket, other suitable means (alternative or complementary to said fastening means 17) for compressing the sealing gasket 36 against the interior floor 2 can also be envisaged.

[0061] According to a particularly advantageous alternative, the liquid holder 1 is designed and configured to ensure that the liquid collected by the storage tank 5 leaves the liquid holder 1 via the above-mentioned drainage means 12 and is discharged towards the front of the protective stringer 16, i.e. advantageously towards the front of an external side 37 of the protective stringer 16 facing towards the outside of the liquid holder 1. According to this alternative, the protective stringer 16 therefore advantageously defines a part of the underside 35 of the liquid holder 1 that carries said sealing gasket 36. In other words, the sealing gasket 36 is therefore located on the protective stringer 16. Thus, during drainage of the storage tank 5, a backflow of liquid towards the rear of the protective stringer 16 between the liquid holder 1 and the interior floor 2 of the vehicle is advantageously avoided.

[0062] For example, in the embodiment shown in Figures 14 to 18, the protective stringer 16 is in the form of a rigid subunit having a substantially "C"-shaped cross section. The branches of the "C" shape point toward the storage tank 5, while the midsection of the "C" is directed toward the outside of the liquid retention device 1, thus defining the aforementioned external side surface 37 of the protective stringer 16. In this example, the drainage device 12 includes two ducts 14, and the opening / closing member includes two gate valves 32, each associated with one of the ducts 14. The ducts 14, their through-holes 13, and the gate valves 32 are here housed inside the protective stringer 16 and are therefore advantageously mechanically protected by the protective stringer 16. The external side surface 37 of the protective stringer 16 is provided with a through-opening 38 that allows liquid flowing through the through-holes 13 to flow toward the front of the protective stringer 16. The opening / closing member further includes a manual operating means 39, located on the external upper surface of the protective stringer 16, for controlling the opening and closing of the gate valves 32. As shown in particular in FIGS. 16 to 18 , the protective stringer 16 advantageously comprises a lower wing 40 that defines a portion of the lower surface 35 of the liquid retention device 1 and carries a sealing gasket 36. The protective stringer 16 is here screwed to the storage tank 5 via its lower wing 40. The sealing gasket 36 of the lower wing 40, in this non-limiting example, is in the form of an elongated blade or plate made of an elastically deformable material (e.g., an elastomeric material). The sealing gasket 36 extends longitudinally along the longitudinal extension of the protective stringer 16, with an upper sealing surface 36A and an opposite lower sealing surface 36B. The upper sealing surface 36A of the sealing gasket 36 is here applied tightly against the lower outer surface of the lower wing 40 and is firmly held in place by fastening tabs 36C of the sealing gasket 36 using a retaining plate 41 screwed to the lower wing 40 of the protective stringer 16. Once free, the lower sealing surface 36B is intended to come into contact with a corresponding surface of the interior floor 2 (FIGS. 17 and 18).

[0063] As mentioned above, in order to ensure the fastening of the liquid holder 1 to the interior floor 2 of the vehicle while ensuring compression of the sealing gasket 36 against the interior floor 2, the liquid holder 1 advantageously comprises at least one liquid-tight hole 19, in which the fastening means 17 is positioned, as already contemplated herein. The second flange 23 of the liquid-tight hole 19 is advantageously formed here by a part of the upper wing 42 of the protective stringer 16. Thus, while positioning the liquid holder 1 on the interior floor 2 of the vehicle, the liquid-tight hole 19 can advantageously be positioned above and opposite the lashing rail 18 of the vehicle. The fastening means 17 is then positioned in the liquid-tight hole 19 so as to fasten the liquid holder 1 to the interior floor 2 of the vehicle while compressing the sealing gasket 36 against the corresponding surface of the interior floor 2 (Figures 17 and 18).

[0064] Obviously, this is just one example implementation and other forms and / or configurations of the sealing gasket 36 and / or protective stringer 16 are contemplated.

[0065] The present invention therefore also relates, according to a second aspect, to a vehicle comprising an interior floor 2. According to the invention, the vehicle further comprises at least one liquid holding device 1 mounted on said interior floor 2, said liquid holding device 1 being designed and configured to receive equipment, such as seats or stretchers, carried on board said vehicle, in particular during an evacuation mission, and comprising at least - mounting means 26 configured to mount, preferably reversibly, said liquid retention device 1 to said on-board equipment and / or fastening means 17 configured to mount, preferably reversibly, said retention device 1 to an interior floor 2 of the means of transport, in particular to lashing rails 18 mounted on said interior floor 2; - an upper wall 3 designed and constructed to support said equipment, said upper wall 3 being provided with a plurality of through holes 4; a liquid storage tank 5 arranged at least partially below said top wall 3, said liquid storage tank 5 being designed and configured to collect the liquid passing through said through-holes 4; Equipped with.

[0066] The above description of the liquid retention device 1 therefore advantageously also applies to the means of transport according to the invention, and vice versa. The means of transport therefore advantageously comprises at least one liquid retention device 1 as described above, but may also comprise several liquid retention devices 1 in accordance with what has been described above. The means of transport comprises, for example, several liquid retention devices 1 (preferably similar to one another) covering at least a part, possibly the entire, of the interior floor 2 of the means of transport. Each liquid retention device 1 is preferentially, advantageously removably fastened to the interior floor 2 of the means of transport, i.e. each device can advantageously be attached to and detached from the interior floor 2 optionally, possibly manually, i.e. without the need for any tools, in particular using said fastening means 17 and said lashing rails 18. The means of transport therefore comprises, for example, one or several lashing rails 18 attached to said interior floor 2, and each retention device 1 is, for example, preferably removably fastened to one of said lashing rails 18.

[0067] The liquid retention device and vehicle of the present invention can therefore advantageously perform the task of rescuing persons and / or recovering materials submerged in liquid in conditions of optimum safety and comfort for both people, including the person rescued and the rescuers accompanying them, and for items such as electrical and electronic equipment on the vehicle. [Industrial Applicability]

[0068] The present invention has industrial applicability in the design, manufacture and use of liquid-retaining devices and vehicles equipped with such devices.

Claims

1. A liquid-retaining device (1) intended to be loaded on the interior floor (2) of a vehicle and designed and configured to receive equipment on board said vehicle, comprising at least mounting means (26) configured to mount the liquid retention device (1) to the on-board equipment and / or fastening means (17) configured to mount the retention device (1) to the interior floor (2) of the vehicle; an upper wall (3) designed and configured to support the equipment, the upper wall (3) being provided with a plurality of through holes (4); a liquid storage tank (5) located at least partially below the upper wall (3), the liquid storage tank (5) being designed and configured to collect liquid passing through the through holes (4); A liquid holding device (1) comprising:

2. 2. A liquid holder (1) according to claim 1, characterized in that the liquid storage tank (5) is formed by a tray, said tray having its own mechanical strength.

3. 2. A liquid retention device (1) according to claim 1, characterized in that the tank (5) is at least partly made of closed-cell foam.

4. The closed-cell foam has a strength of 30 to 120 kg / m ３ 4. The liquid holder (1) according to claim 3, characterized in that it has a density of

5. 2. The liquid holding device (1) according to claim 1, characterized in that the tank (5) has at least a bottom (6) from which a plurality of projections (7) extend upward, which are separate and spaced apart from one another, and on which the upper wall (3) is supported.

6. The tank (5) is at least partially made of closed-cell foam, A liquid-retaining device (1) according to claim 5, characterized in that said protrusions (7) are made of said foam.

7. 6. A liquid holding device (1) according to claim 5, characterized in that the storage tank (5) has storage gaps (9) between the protrusions (7) intended to collect the liquid that has passed through the through holes (4).

8. 8. A liquid retention device (1) according to claim 7, characterized in that the storage gap (9) has a variable depth.

9. The liquid retention device (1) of claim 1, characterized in that the storage tank (5) comprises at least one drainage means (12) having at least one hole (13) opening to the outside, and an opening / closing member for selectively controlling the drainage of the liquid recovered by the storage tank (5) from the storage tank (5).

10. 2. A liquid retention device (1) according to claim 1, characterized in that it comprises protective stringers (16) fixed to the edge of the storage tank (5) to protect the storage tank (5) from crushing caused by the equipment when the equipment is placed on the retention device (1).

11. 11. The liquid retention device (1) according to claim 10, characterized in that the protective stringer (16) comprises a plate-like portion configured to be placed on the interior floor (2) of the vehicle and / or to be positioned in an opening of the vehicle.

12. 2. The liquid holding device (1) according to claim 1, characterized in that it comprises a liquid-tight hole (19) penetrating the upper wall (3) and the storage tank (5), and the fastening means (17) is positioned within the liquid-tight hole (19).

13. The liquid holding device (1) of claim 12, further comprising a removable plug (20) configured to liquid-tightly seal the liquid-tight hole (19), the plug (20) being configured to be positioned in and / or on the liquid-tight hole (19) from the outside of the upper wall (3).

14. 13. A liquid retention device (1) according to claim 12, characterized in that the attachment means (26) are positioned at least partly in or on the liquid-tight hole (19).

15. 14. A liquid retention device (1) according to claim 13, characterized in that the bung (20) carries the attachment means (26).

16. 2. The liquid holder (1) according to claim 1, characterized in that the upper wall (3) has a wall edge (10) connected to the storage tank (5), and the upper wall (3) has a surface (11) without through holes (4) extending from the wall edge (10).

17. 2. The liquid retention device (1) according to claim 1, characterized in that it comprises, below the upper wall (3) and within the storage tank (5), an absorption means (28) configured to absorb the liquid flowing from the through holes (4).

18. 18. The liquid retention device (1) according to claim 17, characterized in that the storage tank (5) comprises a bottom (6) and the retention device (1) comprises pressing means (29, 30, 31) configured to press the absorption means (28) against the bottom (6) in order to extract the previously absorbed liquid from the absorption means (28).

19. 19. The liquid retention device (1) according to claim 18, characterized in that the pressing means (29, 30, 31) comprise at least one pressing plate (29) positioned between the top wall (3) and the absorbing means (28).

20. 20. The liquid holder (1) according to claim 19, characterized in that the pressing means (29, 30, 31) comprise at least one actuator (30), said actuator (30) being connected to said pressing plate (29).

21. 21. The liquid retention device (1) according to claim 20, characterized in that the actuator (30) is further connected to the top wall (3).

22. The storage tank (5) has storage gaps (9) between the protrusions (7) intended to collect liquid that has passed through the through-holes (4), Liquid retention device (1) according to any one of claims 17 to 21, characterized in that the absorption means (28) are arranged in the storage gap (9).

23. The storage tank (5) has storage gaps (9) between the protrusions (7) intended to collect the liquid that has passed through the through holes (4), 20. The liquid holder (1) according to claim 19, characterized in that the pressure plate (29) is arranged in the storage gap (9).

24. 2. A liquid holding device (1) according to claim 1, characterized in that it has a lower surface (35) provided with a sealing gasket (36) at least locally, said sealing gasket being intended to be interposed between said lower surface (35) and the interior floor (2) of the transport means in a state of compression against said interior floor (2) when said liquid holding device (1) is loaded on said interior floor (2).

25. A liquid retention device (1) according to claim 10 or claim 11, characterized in that it is designed and configured to ensure the discharge of the liquid recovered by the storage tank (5) from the liquid retention device (1) towards the front of the protective stringer (16), the protective stringer (16) defining a portion of the underside (35) of the liquid retention device (1) that carries a sealing gasket (36).

26. A vehicle comprising an interior floor (2), further comprising at least one liquid retention device (1) mounted on said interior floor (2), said liquid retention device (1) being designed and configured to receive equipment on board said vehicle, said liquid retention device (1) comprising at least mounting means (26) configured to mount the liquid retention device (1) to the on-board equipment and / or fastening means (17) configured to mount the retention device (1) to the interior floor (2) of the vehicle; an upper wall (3) designed and configured to support the equipment, the upper wall (3) being provided with a plurality of through holes (4); a liquid storage tank (5) located at least partially below the upper wall (3), the liquid storage tank (5) being designed and configured to collect liquid passing through the through holes (4); A means of transportation comprising:

Images