FR3029091A1 - SEALED TRANSPORT BAG FOR INFLATION AND DEFLATION OF PNEUMATIC PRODUCTS - Google Patents

Abstract

Manually operated device for inflating and deflating large quantities of pneumatic products at low pressure, storing and transporting them, as well as suctioning and evacuating liquids. This device is composed of a cylindrical sealed bag (1) made of heat-welded coated fabric whose sealing of the triple flap closure system is guaranteed by the use of a complementary zip closure operated by an external and removable slider . To this device are added different adjustable compression straps (7-9) and carrying straps (27-28-29), a spiral cylindrical internal conformation structure, an external connecting pipe with connectors, a wide inlet valve of air or liquid, a tri-fold valve for air blowing or air expiration or liquid evacuation, a suction valve for air or liquid, sealing plugs adapted to the closure of each flap.

Description

The present invention relates to the design of a pneumatic inflator with manual operation with high air flow and low pressure, from a waterproof bag made of thermo welded coated fabric. In addition to rapid inflation, the device's clean design allows it to be used for other functions such as quick deflation, pumping liquids, or as a stand-alone float or as a sealed bag for a multitude of objects. The invention relates both to the followers of camping and hiking - because of the large capacity of the bag used and its absolute tightness - a public oriented sports and water sports. The invention allows both the transport and then the rapid inflation / deflation of pneumatic objects removed, freeing by the fact of the volume represented by similar non-inflatable products, and thus providing a much easier and more autonomous use of a wide range of products. range of pneumatic products. To our knowledge, many types of airtight bags already exist on the market, as well as multiple models of air pumps and pneumatic inflators, but the waterproofness of the bags remains imperfect and none of the models of manually operated inflator allows a high flow inflation. Concerning this last point, this incapacity is most often linked to the small volume of pumping air that they allow (5 to 7 liters of air blown by the activation of a foot pump, and even less for a hand pump. ), but is also related to the small size of the inflation port of the current pneumatic products (boat, mattress, etc ...). In addition, each commercial inflator is in itself an additional element bulky during transport, although essential for inflating often tedious, knowing that their utility is thus limited to this sole use. From the publication FR0205760, is known a device called air pump large volume but this device, after further studies, has as main disadvantages: - The conical shape of the bag does not allow easy loading and unloading - The valves used and their dimensions are incompatible with the function sought - The wear of the upper valve is premature following its friction on the internal spring. - The position of the lower valve allows the absorption of particles detrimental to the proper functioning of the device and in addition accentuates the premature wear by friction thereof against the spiral spring. - Too much flexibility and height of the internal conical spring system - One continuous loop in maintaining the spring making it difficult to set up - Important manufacturing and industrialization constraints related to the complexity of the product - A single means of gripping the bag 35 - Contention of tightness of the triple flap and insufficient zip - 2 - - Insured drowning of the panicked bearer kept head under water in the event of failure of the product or inability to detach - High manufacturing cost related to the design of the product In addition, the device for which the patent was filed has never been the subject of a prototype for testing the functionality. Moreover and to our knowledge, no sealed bag alone allows the storage and transport of pneumatic products and inflation or deflation and aspiration of liquid products followed by their expulsion. In order to remedy these multiple problems, a different and innovative design - of a number of elements and their combinations - has been realized and whose functions have been tested using a prototype. The device according to the invention, designed on the basis of a bag of cylindrical shape (FIG 1-1) waterproof cloth coated with flap closure, allows both the transport of different objects, the durable buoyancy of this- ci and its contents, as well as the rapid commissioning of pneumatic products at low pressure which it has allowed the prior transport. Guarantor of a total waterproofness to the water and the air, it is able, in addition to the protection against the air and the humidity of the transported objects, to be used like a buoyancy aid of the person who transport it. The attached drawings illustrate the invention: FIG. 1 represents an overall view of the closed sealed bag 20 FIG. 2 represents an overall view of the open sealed bag FIG. 3 represents a radiographed view of the interior FIG. Fig. 5 shows the zip closure and its slider shutoff - Figs. 6 and 7 show the wide inlet valve and its exploded view - Figs. 8 and 9 show the triple-function angled valve and its exploded view 25 - Figs. 10 and 11 represents the suction valve and its exploded view - Figure 12 shows the connecting pipe and its connections The different parts are numbered: 1- Sealed cylindrical bag made of thermo welded coated fabric 2- Thermo welded waterproof Zip closure 30 3- Removable clasp with slider for waterproof Zip 4- Spiral conformation structure 5- Y connection for spiral conformation structure 6- Internal thermo-welded loops for structure maintenance conformation 7- Adjustable straps with clips to maintain closure of the upper neck 35 8- Adjustable straps for holding the device on the ground -3- 9- Lateral compression straps with clips 10- Adjunctive auxiliary straps 11- External connecting pipe to screw connections 12- Screw-tight external cap 13- Valve body 14- Flexible valve diaphragm 15- Internal plug-in protective cap 16- External screw-tight cap 17- Elbow valve body 18- Soft valve diaphragm 19- Sieve flexible diaphragm support 20- Internal plug-in protective cap 21- External screw-tight cap 22- Valve body 23- Flexible valve diaphragm 24- Internal plug-in protective cap 25- Thermo-welded external fastening reinforcements 26- Pockets external storage 27- adjustable shoulder straps 28- hand carry hanger 29- carry strap equipped with carabiners at each end 30- pneumatic object to inflate Some constituent details are indexed: (1-A): Opening collar and triple flap closure of the bag on itself (1-B): Bottom of waterproof bag in thermo welded coated canvas (1-C): Wall formed by the sealed bag (13-A; 22-A): Flexible diaphragm sill (13-B; 14-A); (18-A; 19-A); (23-A; 22-D): Flexible Membrane Attachment Surfaces (13-C; 17-B; 22-B): Perimeter Clamping Collar for Membrane Protective Shutter Inside the Bag (15-A; 20-A; 24-A) : Bead formed for interlocking internal protective shutter on flange (17-A; 22-C): No screw for connection of connecting pipe to different valves35 - 4 - The transformation of the starting sealing bag takes place at multiple levels and requires the addition of different elements each having a specific utility, so that the product finally achieved allows a multitude of practical and fun applications. In the first place, in the case of a cylindrical sealed bag with flap closure three times 5 (FIG. 1) intended for the transport of different objects and whose bottom (FIG. 2-1B) is reinforced by the use two more different gripping means are reported to it: on the one hand, a closed strap, the length of which corresponds to at least twice the contour of the cylindrical base of the bag, is fixed on the outside of the latter, parallel to its circumference in two axes centered and sufficiently spaced from each other to balance the load of the bag transported horizontally by one or two people in case the load would be too heavy thanks to the two handles thus obtained (fig.1-28); on the other hand, a second individual carrying system with braces is carried out on the height of the cylinder formed by the bag (fig.1-27), so as to use it as a traditional backpack with access to its content by the opening of the flap of the upper part. Then, inside the bag and at the opening neck thereof at the top, a tight double zip closure (fig.2-2) whose length corresponds precisely to the total opening of the neck of the bag (fig.2-1A) is reported then thermo welded. This closure by sealing the waterproof zip with a removable slider (fig.4-3) external will be performed before the additional closure by triple flap of the neck of the bag on itself to ensure perfect tightness. Once the zipper has been closed, the cursor used for this purpose will be removed and then stored inside an external pocket (fig.2-26) fixed on the wall of the bag so as not to be lost. Thus, the triple flap made and maintained by straps equipped with clips (Fig 1-7 and 9) traps the closed waterproof zip and prevents opening by its own restraint to ensure resistance to pressure constraints of any nature when using it. These two closure systems 25 at its upper end, although different, are interdependent one to the other to ensure the maintenance of the perfect water and air tightness of the bag obtained; the double zip sealing and the triple flap ensuring the closed maintenance of the double zip. In this configuration, we therefore have a 100% waterproof transport bag which by its own configuration allows its durable buoyancy even loaded, thanks to the volume of air intrinsically contained after achieving its double closure. In order to allow inflation and low-pressure high-pressure deflation of pneumatic objects, other important elements are necessary. Various non-return valves (fig.6, fig.8; fig.10) of different functions, an external connecting hose with connections (fig.12-11) and an internal spiral cylindrical conformation structure (fig.3- 4) are reported to the bag. First of all, in order to optimize the internal volume of the sealed bag and prevent its walls from sticking to each other once it has been emptied of its contents, it is necessary to keep it in shape according to its maximum load capacity, regardless of the cycle of use of the device. This operation is made possible by the introduction after suitable forming of an internal spiral cylindrical shaping structure (FIG. 3 - 4) and then holding it by passers-by (FIGS. 3-6), such as those used for hold a belt on pants. This conformation structure (fig.3-4) is made from semi-rigid plastic tube whose final shape has the appearance of a cylindrical spring consisting of three parts: A base and a corresponding circular top precisely at the inner circumference of the cylinder formed by the bag and the connection of these two elements by a spiral shape via two Y assembly (fig.3-5). The spiral cylindrical conformation structure thus obtained will be inserted inside the bag and occupy a part of the internal volume thereof, starting from the base of the bag until 2/3 see% of its height after closure by flap. The permanent retention inside the bag of this conformation structure will be obtained by thermo welding a multitude of passers cloth coated at different points of the inner wall so as to imprison in its place defined so permanent (fig.3-6). Then come the different check valves and their positioning on the wall of the bag. These, three in number, are located on the upper part of the bag in the closed position, under the closure of the triple zip flap and above the level of the conformation structure to prevent premature wear by friction against the conformation structure (fig.3-4) during bag extension / compression cycles. Each of these valves will be protected inside the bag by a removable shutter (15, 20, 24) to prevent the friction of its membrane against the objects of which this bag allows the transport and will allow as needed to perform the inflation , deflation and suction pumping and delivery of liquid products.

The first non-return valve (fig.6 and 7), larger than the other two, is intended for the rapid admission of air of a volume equivalent to the maximum capacity of the bag emptied of its contents but maintained in form. The body of the valve (13) is formed at its base by a large washer of synthetic material a few millimeters thick and about 12 cm in diameter whose center is formed of a sieve (Fig.7-13A) d about 8 cm in diameter. This washer, on its outer circumference forms a flange (Fig.6-13C and 7 -13C) of 1mm to 2 mm which allows the establishment of a circular shutter (15) by interlocking and held in place thanks to the throat formed by this bead. The body (13) is also formed of a cylindrical portion with a diameter of 8.5 cm and a height of 2 cm, having a threaded portion for receiving a sealing plug (12). The circular sieve (Fig.7-13A) of 8 cm in diameter has the function of leaving a large one-way air inlet passage, the return of air being prevented by - 6 - pressing on that of a flexible membrane (14). This flexible membrane (14), whose size corresponds precisely to that of the washer, is made of synthetic material and then partially bonded (Fig 6-13B) on the washer, so as to form a half-moon bonding. Thus, during the admission of air, the flexible membrane is lifted to allow the flow through the sieve into the sealed bag and then resumes its place again on the surface of the washer when the admission is complete, obstructing the passage of sealed manner by pressing the sieve and the total surface of the washer on this face. The positioning of this large inlet valve (Fig. 2-12), thermo welded to the wall of the bag by the face of the membrane-free washer, is located between the closure by triple flap-zip high point and the top of the internal cylindrical conformation structure. Prior to its final connection by thermo welding, it is presented by the inside of the bag to cross the wall by removing material from a surface corresponding to the outer diameter of its thread visible from the outside of the bag. This position on the bag is critical in order to avoid the premature deterioration of the flexible membrane by friction in contact with the cylindrical conformation structure or the involuntary suction of sand or other dust that would affect the reliability of its sealing. Thus, to allow rapid admission of air to the interior of the bag, the membrane protective shutter located inside the bag (Fig.6-15) and the screw-tight cap (12) located on the outside of the bag are removed. Each extension movement of the bag allows the admission of air inside thereof in an amount equal to the maximum volume related to its own capacity.

The second non-return valve is called the suction valve (Figures 10 and 11). It is designed in all respects in the same way as the large intake flap. Only its size is different in that it must be able to be connected to the external connecting pipe (fig 12-11), by screwing it on its external thread (Fig. 11-22 C) after removing its watertight cap (21) and internal diaphragm seal (Fig. 10-24). Thus, the outer diameter of the synthetic washer is approximately 7 cm and its internal diameter at the sieve (Fig.10-22A and 11-22A) allowing the passage of the flow is about 4 cm to allow, however, a flow rate of important aspiration. This suction valve will be used during deflation operations or rapid air emptying of pneumatic products to which it is previously connected via the external connecting pipe, before proceeding with their storage; but it can also be used for the suction of liquids not loaded with particles inside the bag, which will be discharged by a third and last non-return valve with triple function, opposite operating direction thereof. For this operation, the bag will be used upside down and kept in contact with the liquid to be pumped for direct suction by extending the bag on itself. The implantation of this suction valve on the bag is carried out at the same height level as that of the large intake valve, laterally to it and a few centimeters from it (Figure 2-20). The removal of a 4 cm diameter disc of coated fabric constituting the wall of the bag at this location is performed before fixation. It is also heat welded to the wall of the bag, forming part of the bag by the face of the synthetic washer free of flexible membrane. The third and last non-return valve, angled, is called a triple function valve (fig.8 and 9). The latter, which has the same diameter as the suction valve described above, is used to inject the air contained in the bag towards the pneumatic objects to be inflated via the external connecting pipe (FIG. 1211) to which it is connected by one of its two ends, the other end of the pipe being connected to the object to be inflated. This bent valve also expels the air contained in the bag to the outside environment during the deflation operation of pneumatic products.

To do this, the object to be deflated is connected to one end of the connecting pipe, the other end of the pipe being connected to the suction valve of the bag once plug and diaphragm shutter removed. According to the same process, the bag presented upside down for the direct suction of liquid products, can push them through this last bent valve connected to one end of the external connecting pipe, the other end of the pipe being directed to the desired discharge zone of the discharged liquids. Except that this non-return valve is bent (Figures 8 and 9) to facilitate the discharge of liquid products when the bag is used upside down, its body is of size and section identical to the suction valve and does not distinguished from it by the positioning of the flexible membrane (18) whose diameter has been reduced and which is housed inside the body thereof (17), forming a continuous support on the other face of the sieve ( fig.9-19A) allowing the passage of the flow of air or liquid during its lifting. Thus, the face of the synthetic washer supporting the half-moon partial bonding of the flexible membrane is less hollow in its center than that of the suction valve and involves a reduced dimension of the sieve serving as a non-return support for the membrane. flexible housed inside the duct allowing the passage of air or liquid. The flow of air or liquid product passing through the latter valve will occur during compression movements or crushing of the bag on itself, after prior removal of the plugs (16) and shutter (20). This valve is presented on the wall by the inside of the bag to be also heat-welded by the upper face of the synthetic washer (fig.8), at the same height level as the suction valve and on the other side of the large inlet valve, a wall of which a disc of 4 cm of coated cloth was previously removed (Fig. 2-17).

The external connection pipe (Fig. 12-11) is equipped with connections with internal thread at each end, connections which are perfectly adapted for connection to the suction valve and elbow valve on the one hand, and connection to objects pneumatic tires (Fig. 12-30) on the other hand. The external connecting pipe (Fig.12-11) and its connections are of sufficient diameter for the rapid expulsion of air or liquid contained in the bag towards the objects to be inflated (30) or the evacuation zone chosen. The complete line obtained by the bag-pipe-pneumatic object connection must be the least braked possible for high-speed inflation. Inflatable products (boats, mattresses, etc ...) will therefore be equipped with check valves of the same diameter for optimal configuration without adapter. This connecting pipe, although external to the bag itself, is inseparable from it. It can vary in length without this hindering its use except for the clutter it generates when stored at the bottom of the bag after use. With an internal diameter of 4 cm, it is preferable that it is smooth at its inner wall to limit its whistling in contact with the air which it allows the passage to high speed. It can be considered that its ideal length is close to two meters to cover all the functions offered by the product finally achieved.

According to the invention, several uses are possible: - As a sealed bag transport: this use is performed by unfolding the triple flap and opening the zip at the upper cylindrical end of the opening neck of the bag. The different objects to be transported are stored inside the bag before closing. Firstly, the bag is closed tightly by fitting and sliding of the outer slider of the zip on the neck of the bag after making sure that all the flexible diaphragm shutters are correctly positioned. The flap closure is then made three times from the neck of the bag on itself which is then closed by clip straps (Fig. 1-9) at each of its ends to the side wall of the bag. In order to ensure the proper retention of the closure by triple flap and zip, two other locks by clips housed on either side of the neck of the bag are made (fig.1-7and 2-7). Once the verification of the correct closing of the three external screw plugs has been carried out (12, 16, 21), the bag is perfectly sealed. - As a high-pressure inflator at low pressure: for this operation, the sealed bag must be opened and completely free of its contents. The shutters (15, 20) of flexible membranes and the external plugs (12, 16) of the inlet valves (fig.6) and angled valve (fig.8) insufflation are momentarily removed for the purposes of this operation. The bag is then closed as specified above by the zip (2) and the triple flap of the collar on itself. The external connecting pipe (11) is connected to the insufflation valve (Fig.8 and 9) at one end and to the inflatable objects (30) at the other end. The passage of the two feet of the wearer inside two adjustable straps (fig 2-8) allows the maintenance of the bag on the ground during the manual movements of extension and compression. These two loops, consisting of adjustable straps, are arranged outside and under the bottom of the bag forming an angle at 10H10 and also allow the attachment, under the bag, accessories compatible with their dimensions such as oars, removable paddles Each extension movement of the bag on itself allows the air to be introduced inside thereof by lifting the membrane (14) of the large inlet valve (fig.6) while the diaphragm (fig.8-18) of the insufflation valve (fig.8) closes. Once the bag is filled with air, it is then compressed and crushed on itself. At this moment, the membrane (14) of the intake valve bears on the sieve (FIG. 7-13A) to close the air passage while simultaneously, the flexible membrane (18) of the elbow valve (FIG. .8) opens to let the air in the bag escape to the inflated object via the connecting pipe (11). Repetition of these movements of extension and compression of the bag on itself is performed until the perfect inflation of the pneumatic object. Once inflation is complete, the connecting pipe and the objects removed from the bag can take their place inside it, not to mention the correct winding of the shutters and plugs prior to its complete closure by triple flap and zip. - As a high-flow deflator: In this operation, the configuration of the bag is as follows: the connecting pipe (11) is connected to the suction valve (Figs 10 and 11), with its plug (21) removed and its shutter (24) at one end and the objects to be deflated (30) at the other end. The bent valve (fig.8) is also free of its plug (16) and its shutter (20). The wide intake valve is provided with its cap (12) and its shutter (15). During the extension movement of the bag on itself, the diaphragm (23) of the suction valve (fig.10) opens while simultaneously, the membrane (18) of the bent valve (fig.8) closes to let the air inside the bag. During compression of the bag, the position of the membranes (23) and (18) is reversed allowing the escape of air to the outside. - As a system for pumping then delivery of liquid products: for this operation, the bag is previously emptied of all its contents and all the shutters (15-20 and 24) and plugs (12-16 and 21) of the valves of suction (fig.10), inlet (fig.6) and elbow valve (fig.18) are removed. The bag is presented upside down. In this configuration, it allows its use as a liquid pump without solid particles and the disposal of these liquids elsewhere. This liquid evacuation operation is carried out by opening the inlet (fig.6 and 7) and suction (fig.10 and 11) valves which are in direct contact with the liquid to be aspirated and the connection the pipe (Fig.12-11) of external connection at one of its ends to the triple-function elbow valve (Fig.8 and 9), the other end of the pipe for discharging the liquid sucked. The bag having been closed at the level of the triple flap and zip before this pumping operation, it will be held upside down by the support of both feet on the closing system of the bag. Each extension movement of the bag on itself opens the membrane (23) of the suction valve while the membrane (18) of the bent valve closes simultaneously, and each compression movement reverses the direction of operation of the membranes thus allowing the discharge of the sucked liquid to the outside. As a device for assisting the buoyancy of the carrier: A strap (29) releasably connected to the bag at each of its cylindrical ends by two carabiners makes it possible to form a shoulder strap enabling the bag to be transported. The detachment of one of the two carabiners of the bag allows the attachment of the bag to the wearer's belt, which is thus rid of the carry on the back. The bag hermetically sealed by the triple flap and the closure of the zip, as well as the verification made of the good closing of the three external plugs (12, 16, 21) offers the wearer the possibility of using the bag, even when loaded, as a float, as long as the bag is used in its maximum volume configuration. This independent float capacity, the bag holds it because of the air it contains intrinsically in the middle of the objects it allows the transport and the connecting pipe further increasing the volume of air contained inside the bag of which the watertightness is made total by the texture of the product used for its manufacture, and its double closure system with triple flap and zip. Thus, during an accidental fall or a voluntary shipwreck for the crossing of a river for example, the carrier floats on the surface of the water thanks to the strap that connects to the bag and the contents of it . Except the realization of the check valves with opposite effects and their dimension adapted to the need of the concept, this realized set does not require big upheaval for its industrialization. Whether it's the different forms of waterproof bags, closure systems with flaps three times on the collar itself, waterproof zip closures, various straps and fasteners used or even light, semi-rigid and thermoformable tubes all of these products are already industrialized, each in their respective areas of current use. It is the global combination of all these products between them and their interdependence that makes it the major asset of the realized system. The bodies of the three non-return valves, plugs and flexible diaphragm shutter can be produced by plastic injection. The bodies of the valves will be thermo welded to the wall of the bag. The flexible membranes (14, 18, 23), allowing the flow of air in one direction, can be cut in a flexible and resistant plastic material or any other product which will have the same characteristics with the possibility of being permanently fixed on their support. The tube (4) lightweight semi-rigid and thermoformable meanwhile, will be a priori from plastic extrusion. On leaving the production line, it will be shaped around a template and will be held in place for cooling before attachment to the inner wall of the bag. The forming template used will correspond precisely in size and shape to the maximum internal volume of the closed bag in the context of a homogeneous distribution of turns that it has formed on the inner wall of the bag. Two sections of the thermoformable tube will be made to precisely match the inner perimeter of the bag at its base and at its highest point of the spiral. The three parts thus obtained will be connected by connection via two "Y" links for welding and / or bonding. The semi-rigid tube is held in place inside the bag by threading the opened bag over the jig of the coil, which leaves access for the attachment of the heat-sealable fabric strips to - 11 - multiple points from the inside of the bag, so as to make the spiral conformation structure trapped in the inner wall of the bag (passing trouser belt).

Claims (10)

CLAIMS1) Manual actuation device for inflating / deflating large flow of low pressure pneumatic products and storage and transport thereof as well as suction 5 and discharge of liquids. This device is composed of: - a cylindrical bag (fig.1-1) made of thermo-welded waterproof coated fabric with triple flap closure, - a complementary zip closure (fig 4-2 and 5-2) of which sealing is guaranteed by the use of an external removable slider (Fig.4-3), - a spiral cylindrical shaping structure (Fig.3-4), - an external connecting pipe with connections (Fig. .12-11), - a large air or liquid inlet valve (fig.6 and 7), - a triple-function valve (fig.8 and 9) for blowing air or air. air exhalation or liquid discharge, - a suction valve (Fig. 10 and 11) of air or liquid, characterized in that a double closure system of the bag at its upper end ensures airtightness and watertightness by the presence of a waterproof zip (fig.2 -2), positioned so as to be completely trapped inside the flap closure of the bag collar on it - even 20 three times. The flap closure fastening of the folded collar and zip is provided by several straps (fig.1-7; fig.1-9) provided with clips to ensure resistance to pressure stresses of any kind during its use. 2) Device according to claim 1, characterized in that the reversal of the inflator / deflator (bottom support system) allows its use as a liquid pump 25 without solid particles and the evacuation of these liquids elsewhere. This liquid evacuation operation is performed by opening the intake (fig.6 and 7) and suction (fig.10 and 11) valves, which are in direct contact with the liquid to be sucked and connected. the pipe (Fig.12-11) of external connection at one of its ends to the triple-function elbow valve (Fig.8 and 9), the other end of the pipe for discharging the liquid sucked. Each extension / compression cycle 30 allows the suction and then the evacuation of liquid corresponding to the maximum internal capacity volume of the closed cylindrical bag. 3) Device according to claim 1, characterized in that a spiral cylindrical conformation structure (fig.3-4) held in place by loops (fig.3-6) and perfectly matching the inner wall of the sealed bag, allows to obtain an optimum internal volume when the bag is in extension and to prevent the walls of the bag from sticking to each other, regardless of the cycle of use of the device. 4) Device according to claim 1 characterized in that a connecting pipe (fig.12-11) is connected at one of these ends to the pneumatic objects (30) and at the other end is the triple valve elbow function (fig.8 and 9) for the inflation function or the suction valve (fig.10 and 11) for the deflation function. 5) Device according to any one of the preceding claims characterized in that the pipe (11), once connected to the insufflation valve (Fig.8 and 9) at one of its ends and objects to inflate (30). ) at the other end, the diaphragm (fig.6-14) of the inlet valve (fig.6) opens and the diaphragm (fig.8-18) of the insufflation valve (Fig.8) closes simultaneously during the extension movement of the bag. The position of the membranes of the two valves is reversed automatically during the compression movement of the bag. 6) Device according to any one of the preceding claims characterized in that the pipe (Fig.12-11), once connected to the suction valve (Figs 10 and 11) at one of its ends and 15 objects to deflate (30) at the other end, the diaphragm (23) of the suction valve opens and the membrane (18) of the bent valve closes simultaneously during the extension movement of the bag. The position of the diaphragm diaphragms is automatically reversed during compression of the bag. 7) Device according to claims 1,5 and 6, characterized in that the three check valves are located on the upper part of the bag in the closed position, under the closure of the triple flap-zip and above the level of the conformation structure, so as to make inflation and deflation easier, without, however, risking the alteration of the flexible membranes (14, 18, 23) by friction on the conformation structure (FIG. extension / compression of the bag. Each of these valves will be protected inside the bag by a removable shutter (15, 20, 24) to avoid the friction of its membrane against the objects of which this bag allows transport. 8) Device according to the preceding claims characterized in that the external connecting pipe (Fig.12-11) and its connections are of sufficient diameter to quickly expel air or liquid contained in the bag to objects to inflate (30) or the chosen evacuation zone. The complete line (bag, hose, inflated object or liquid evacuation zone) to be the least braked possible, the inflatable products (boat, mattress, etc. ..) will be equipped with check valves of the same diameter for a optimal configuration without adapter. 9) Device according to claim 1 characterized by the presence of two loops length adjustable (fig.2-8) located on the outer portion of the bottom of the bag, positioned at an angle "10H1Omin" for maintaining the bag on the ground by the passage of both feet during the 35 manual movements of extension and compression. These two loops also allow the fixing under the bag of accessories compatible with their dimensions such as oars, removable paddles 10) Device according to claims 1 and 3 characterized in that the air intrinsically contained in the closed bag, whether it is loaded or not, and its perfect seal, gives it the characteristics of use as a float, from when the bag is used in its maximum volume configuration.