RU2372825C1 - Method of accelerating charging of multi-tube inflatable products - Google Patents

Abstract

FIELD: pneumatics.

SUBSTANCE: proposed invention aims at simplifying and accelerating charging multi-tube inflatable products, as well as at reducing charging time. To this end, inflatable product is furnished with at least one auxiliary carcass to be arranged either inside or outside it.

EFFECT: charging inner space by gravity via hole communicating product inner chamber with atmosphere.

7 cl, 5 dwg

Description

Application area

The invention relates to methods for simplifying and accelerating the filling of multi-chamber inflatable products such as mattresses, beds, inflatable boats with air.

State of the art

Currently, inflatable products are pumped in such a way that the entire volume of air fills the product through the pump, which is not always justified. For example, when inflating rubber boats, air mattresses, most of the time is spent filling air with a large internal volume of the product with a minimum pressure difference between the external environment and the internal volume of the product, especially in the initial stage of pumping.

The prior art patent RU 2068344 is known for a vehicle camera, including a main camera and an additional camera attached to it along the entire surface and fastened to the main camera at a minimum distance from the center, and an air bypass device, characterized in that that, in order to eliminate the outflow of air from the chamber during its through puncture, the additional chamber is made of at least two parts differing in elasticity, one of the joints of which coincides with the mounting location of the two cameras. The technical result of the invention is to eliminate the outflow of air from the chamber during its through puncture, and is not aimed at accelerating the process of inflating the boat.

The inflatable sled is known from the prior art (patent RU 2252887), consisting of two parallel inflatable longitudinal elements that serve as runners and adapted to support the entire body of the sled and to slide on snow or ice (snow surface), and at the ends the longitudinal elements are interconnected raised transverse inflatable elements so that a single frame of the sleigh body is formed, to which an elastic bottom of the body is attached, characterized in that to the transverse inflatable elements inside the frame in the bow and stern The central inflatable longitudinal balloon, which has a height not less than the diameter of the parallel inflatable longitudinal elements, and contains means for changing the relationship between the height of the balloon and its width, which is located at least almost to its end sections and is made in the form of a vertical elastic a diaphragm located in the center of the cross section of the central cylinder and attached inside it with its division into two - right and left - zones equal to the perimeters along cross sections, and in the cross section of the balloon a closed flat algebraic curve of the Cassini oval type with a waist is formed, having a horizontal axis and a waist in the vertical plane, while the distance between the vertices of the oval along its horizontal axis is greater than the diameter of the central balloon without a diaphragm, and the distance between any the oval points located on one vertical line are smaller than the diameter of the central balloon without a diaphragm, and the end sections of the central inflatable balloon in the zone of attachment to the frame The body ACSs have a horizontal plane width equal to the half-perimeter of the central cylinder, and longitudinal support inflatable cylinders with a diameter smaller than the diameter of the longitudinal cylinder cylinders are attached to the inflatable longitudinal elements inside the housing frame along the entire length, and removable, for example, on the outside of the longitudinal and transverse frame elements flexible ties such as lacing attached elastic bottom.

The technical result of the invention is the creation of a universal sleigh design with an expanded scope of operation. The technical result of the invention is not aimed at accelerating the process of inflating a boat.

JP 2004175324 is known for an inflatable boat having additional chambers abutting its inflatable sides. The technical result of the invention is not aimed at accelerating the process of inflating a boat.

The prior art BED FOLDING HIKING (patent RU 2226353). The technical result achieved by the implementation of this invention is to reduce the weight and volume of the bed, simplifying its assembly. A folding camp bed is used as follows. From the transport position, the folding bed unfolds, the folding supports are brought into an extended position and inserted into the nests on the side members, while the bed sheet is stretched. The awning is fastened to the main canvas with a zipper, it is also the place of entry and exit of the user. Then the awnings diagonals are inflated through the fitting located in the lower corner. Due to the air pressure in the seams, the tent is shaped like a dome.

This solution is based on inflating all chambers with air, which is longer in time, and also requires manual deployment of the product. The closest prior art is a self-inflating mattress (patent US 2007186349). The mattress has many inflatable cavities, each of which has a smaller hole for air supply, contains many shut-off valves, the purpose of which is to stop or supply air to the corresponding group of cavities, preventing the outgoing air flow from the corresponding group of cavities. The expansion of the mattress occurs within each of the cavities, and the process of blowing occurs through a small hole in the center of the cavity. This solution allows you to reduce the pressure of the cavities without losing their round shape and speed up the process of inflation by reducing the volume of the pumped cavity by forming holes in it. This solution is based on inflating all chambers with air, which is longer in time, and also requires manual deployment (preparation) of the product. The difference between this solution and the claimed one is the principle of air supply. In this solution, air is supplied in the usual way - into the cavity through the valve.

Technical result: the proposed method can significantly reduce the time spent on pumping.

Brief Description of the Drawings

Figure 1, Figure 2, Figure 3 and Figure 4 shows a diagram of devices that implement the method, where 1 is a pump, 2 is the inlet of the expansion frame, 3 is the valve of the expansion frame, 4 is the internal volume of the frame, 5 is the internal (main) volume of the product, 6 - the inlet of the product, 7 - the valve of the main volume of the product with a low input resistance, 8 - the outer shell, 9 - the inner shell, 10 - the hole of the threshold valve, 11 - plug of the threshold valve, 12 - return spring, 13 - emphasis, 14 - retainer, 15 - thrust (rigid or flexible), 16 - handle, 17 - valve, 18 - seal spruce, 19 - tightening springs, 20 - connecting pipe. Product exhaust valves and inlet covers are not shown. Figure 5 shows an example diagram of a device with manual control of the valve, where 21 is the valve, 22 is the return spring.

SUMMARY OF THE INVENTION

The claimed technical result is achieved due to the fact that the method of accelerating the pumping of multi-chamber inflatable products, characterized by pumping air into the cavity containing an additional chamber for supplying / discharging air, using shut-off valves, characterized in that the inflatable product is equipped with inside or outside at least one auxiliary frame, providing filling of the internal volume of the product with air by gravity, bypassing the pump, through the hole connecting the internal cavity of the product with external air, by giving the product a shape close to final.

Possible variations in the implementation of this method can combine the following additions.

The frame is hollow, of flexible elastic or inelastic material.

The frame is filled by forcing liquid or air, or gas through a pump.

The frame is made in the form of an additional shell attached to the main shell of the product at a variety of points so that a communicating cavity is formed between them, the pressure increase in which spreads the product, and the additional shell may not cover the entire area of the main shell.

The internal volume of the frame is connected to the internal volume of the product through an overpressure valve or a calibrated orifice or valve.

The pipe 20 connecting the internal volumes of the frame and the product may be located inside the product, with the output of the valve head 17 (in the case of manual control of the valve).

The pressure in the frame when filling the product with external air is increased to such an extent that when the pressure in the frame decreases, the product retains rigidity due to overpressure inside the product without additional pumping.

The frame is sealed by increasing the pressure therein by heating the gas inside the frame with the built-in heating element or by external heat supply or by evaporating low boiling liquid inside the frame when the latter is heated by the built-in heating element or by external heat supply.

The frame can be made, for example, in the form of a spiral attached to the inner or outer side of the shell of a cylindrical inflatable product. For a non-cylindrical product - in the form of stiffeners, etc. The frame can be filled with liquid, air, any gas through the pump, from the receiver, squib, or in another way. After shaping the product and filling it with air by gravity, it can be additionally pumped up to give it more rigidity and must be sealed.

The internal volume of the frame is much less than the internal volume of the product, which can significantly reduce the pumping time of the product.

The pumped product may have several frames for pumping different sections of the product having separate entrances, or a common entrance. The internal volume of the frame can be connected to the internal volume of the product through an overpressure valve or a calibrated hole or valve, which allows pumping up the product (to give it rigidity) without switching the pump from the input of the frame to the input of the internal volume of the product.

The method is implemented as follows.

A pump (see FIG. 1) (1) through the hole (2) and valve (3) with air fills the frame formed by the inner shell (9) and the outer (8), expanding the product. As the product spreads, air fills the internal volume of the product (5) through the hole (6) and valve (7), bypassing the pump (by gravity).

After the product has acquired a shape close to the final one, the valve (17) opens manually, and the internal volume of the product (5) is additionally pumped through the pipe (20) to give the product rigidity. The entire volume of the product becomes a carrier.

If the switching process is automatic, then (see Figure 2) the valve (17) is opened by a draft (15) after the product has expanded, and the spring (12) serves to return the valve to the closed position when the product is deflated.

Also, the automatic pumping process can be implemented (see Figure 3) by making a hole (10) between the internal volumes of the frame and the product, covered by a spring-loaded plug (11), mounted on the rod (15). When filling the frame, the outer shell of the product pushes the stop (13) with a latch (14), mounted on the rod (15), opening the hole (10). After that, the internal volume of the product is pumped. By moving the stop (13), the moment of opening the hole (10) is selected. The hole (10) can also be opened manually by pulling the handle (16). The rod (15) passes through the seal (gland) (18) in the outer shell of the product, which does not allow leaks.

Also, the method can be implemented (see Figure 4) due to the fact that the inlet openings (2) and (6) are made coaxially so that when pumping the frame through the hole (2), air freely enters the hole (6) . Such a solution will make it possible to dispense with one hole in the product body with one common cover. This solution can be used in combination with the swap methods described above. The inlet valve of the main volume of the product can be replaced (see Figure 5) by a valve (21) with a return spring 22, which is locked by a rod 15 when the product is expanded. The result is manual valve control. The frame may be made of elastic materials, such as rubber, or inelastic, such as rubberized fabric.

Equipping the product from the inside with an auxiliary frame and fixing the frame can be realized due to the fact that the product can be made of two layers of material glued or welded together at many points. The cavity between the layers is an inflatable frame. The frame is fixed (built-in).

Claims (7)

1. A method of accelerating the pumping of multi-chamber inflatable products, characterized by inflating the cavity with air, using shut-off valves, characterized in that the inflatable product is equipped inside or outside with at least one auxiliary frame, providing gravity to fill the internal volume of the product with gravity through an opening connecting the internal cavity of the product with the external air, by giving the product a shape close to the final one. 2. The method of accelerating the pumping of multi-chamber inflatable products according to claim 1, characterized in that the frame is hollow of a flexible elastic or inelastic material. 3. The method of accelerating the pumping of multi-chamber inflatable products according to claim 1, characterized in that the frame is filled by pumping a liquid, or air, or gas through a pump. 4. The method of accelerating the pumping of multi-chamber inflatable products according to claim 1, characterized in that the frame is made in the form of an additional shell attached to the main shell of the product at a variety of points so that a communicating cavity is formed between them, increasing the pressure in which the product straightens. 5. The method of accelerating the pumping of multi-chamber inflatable products according to claim 1, characterized in that the frame is connected to the internal volume of the product through an overpressure valve, or a calibrated hole, or valve. 6. The method of accelerating the pumping of multi-chamber inflatable products according to claim 1, characterized in that the pressure in the frame when filling the product with external air is increased to such an extent that when the pressure in the frame decreases, the product retains rigidity due to overpressure inside the product without additional pumping. 7. A method of accelerating the pumping of multi-chamber inflatable products according to claim 1, characterized in that the frame is sealed by increasing the pressure therein by heating the gas inside the frame with an integrated heating element, or by external heat supply, or by evaporating a low boiling liquid inside the frame when heated by the last built-in heating element or due to external heat supply.

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