Rapid inflation system of airbag leak stopper

Abstract

The present invention relates to a rapid inflation system for an airbag type leak stopper, which includes an airbag and a gas storage cylinder. The gas storage cylinder is connected to an inflation control valve. The inflation control valve includes an upper valve body, a lower valve body and a puncture needle mechanism. The lower valve body is screwed to the gas storage cylinder, and the lower valve body is hermetically connected to the upper valve body. A "hui" shaped main air passage is provided in the upper valve body. The main air passage is connected to the gas storage cylinder through an intake and exhaust rod mechanism. A puncture needle mechanism is arranged in the inner cavity of the upper valve body. The intake and exhaust rod mechanism includes an intake and exhaust pipe and a base. A through hole is provided in the center of the intake and exhaust pipe. A number of intake and exhaust round holes communicating with the through hole are evenly distributed in the circumferential direction of the four walls of the intake and exhaust pipe. The base is hermetically connected to the upper valve body. Beneficial effects: The segmented intake design of the intake and exhaust rod of the present invention can make the outer part of the airbag inflate and expand first, improving the plugging efficiency and achieving a good plugging effect; The "hui" shaped air passage is adopted in the inflation control valve, with higher inflation efficiency and less space occupied, making the system easy to be arranged inside the airbag type leak stopper.

Description

Technical Field

[0001] The invention belongs to the technical field of emergency leak plugging of ships, and in particular relates to a rapid inflation system of an airbag-type leak plugger. Background Art

[0002] When ships are sailing at sea, collisions or groundings may cause breaches in the hull, allowing large amounts of seawater to flood into the cabin and even jeopardize the ship's vitality. Sealing breaches is an important measure to improve the ship's vitality. The airbag leak plugger is a new type of leak plugging equipment that can be used to perform water pressure leak plugging operations inside the cabin. After the airbag is inflated, it uses the pressure of the seawater outside the ship and the airbag itself to compress and lock the breach. It has the advantages of being able to withstand less impact from the water flow during the plugging operation and having a good seal on the breach after plugging. In recent years, it has attracted the attention of domestic ship damage control researchers, who have developed a number of different types of airbag leak pluggers. The new airbag leak plugger places greater emphasis on the inflation efficiency and operation speed of the airbag leak plugger. Patent document CN 108482609 B discloses a marine airbag leak plugging device, comprising a double-layer airbag, an air inlet valve, an airbag clamp, an operating rod, a small high-pressure gas tank, and an air guide rod. The double-layer airbag is composed of a sealed inner airbag body and a high-strength outer airbag body to form a thin-walled double-layer airbag. The double-layer airbag is composed of a bottom conical cavity and a top hemispherical shell. The bottom of the double-layer airbag is fixed to the operating rod via the airbag clamp. The operating rod is a hollow oblong tube. A small high-pressure gas tank is placed in the inner cavity of the operating rod. The tank mouth of the small high-pressure gas tank is connected to the air inlet valve, and the upper end of the air inlet valve is connected to the air guide rod. Patent document CN 204383734 U discloses a marine airbag-type rapid leak plugger, comprising a composite airbag, an air intake control valve, an airbag fixing sleeve, an operating handle, a miniature high-pressure gas storage cylinder, and an air guide support rod. The composite airbag comprises a thin-walled double-layer composite structure consisting of an inner sealed airbag body and an outer high-strength airbag body. The bottom of the composite airbag is fixedly connected to the operating handle via the airbag fixing sleeve. A miniature high-pressure gas storage cylinder is placed in the inner cavity of the operating handle. The bottle mouth of the miniature high-pressure gas storage cylinder is fixedly connected to the air intake control valve, and the upper end of the air intake control valve is connected to the air guide support rod.

[0003] Currently, the inflation method of existing airbag leak stoppers is difficult to control the pressure inside the airbag during inflation, the inflation trigger switch is prone to malfunction, and the return is uneven, which can easily cause airway blockage. Therefore, there is a need for a fast, reliable inflation system that can adjust the internal pressure of the airbag according to actual leak plugging needs. However, such a system is currently lacking. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned technology and provide a rapid inflation system for an airbag leak stopper, which can achieve rapid inflation, exhaust and accurate adjustment of the airbag stiffness, solving the problems of rapid and smooth inflation of the airbag leak stopper and adjustable internal air pressure.

[0005] and a tube connecting the dischar e side of the gasket and the control valve, and a tube connecting the dischar e side of the gasket and the control valve is connected with the tube connecting the dischar e side of the gasket.

[0006] The base of the intake and exhaust rod mechanism is threadedly connected to an auxiliary air channel, and the auxiliary air channel includes a quick connector, a high-pressure explosion-proof hose and an intake and exhaust regulating valve. The base of the intake and exhaust rod mechanism is threadedly connected to one end of the quick connector, and the other end of the quick connector is sleeved with the high-pressure explosion-proof hose. The bottom end of the high-pressure explosion-proof hose is sleeved with the intake and exhaust regulating valve. The intake and exhaust regulating valve is connected to the interface of the electric inflation pump to form a structure for regulating the internal pressure of the airbag.

[0007] Beneficial effects: The airbag leak stopper rapid inflation system of the present invention is a device placed inside the airbag leak stopper. 1) The needle drive adopts a double return spring and crank slider design. When using the system when performing leak plugging operations with the airbag leak stopper, it can achieve labor-saving, fast and smooth effects, so that the needle returns to its position quickly after releasing the gas, without dead zones, without obstructing the airway, and with strong reliability; 2) The segmented air intake design of the air intake and exhaust rods can make the outboard part of the airbag inflate first, improve the plugging efficiency, and achieve a good plugging effect; 3) The "U"-shaped airway design is adopted in the inflation control valve, which has higher inflation efficiency and takes up less space, making the system more convenient to be set inside the airbag leak stopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG1( a ) is a schematic structural diagram of the present invention;

[0009] Figure 1(b) is a schematic diagram of the inflated state of the present invention;

[0010] FIG1( c ) is a schematic diagram of the gas-infusing state of the present invention;

[0011] Figure 1(d) is a schematic diagram of the deflated state of the present invention;

[0012] Figure 2 is a front cross-sectional view of the inflation control valve in FIG1( a );

[0013] Figure 3 is a side sectional view of the inflation control valve structure;

[0014] Figure 4 is a schematic structural diagram of the intake and exhaust pipe assembly in FIG1( a );

[0015] Figure 5 It is a structural schematic diagram of the airbag stiffness adjustment component in Figure 1(a).

[0016] In the figure: 1- inflation control valve; 2- disposable high-pressure gas cylinder; 3- inlet and exhaust pipe assembly; 4- airbag stiffness adjustment assembly; 5- trigger pull rope; 6- upper valve body; 7- lower valve body; 8- needle; 9- needle return spring; 10- pull rope connecting block return spring; 11- wire plug; 12- rotating pin; 13- pin shaft; 14- crank; 15- pull rope connecting block; 16- inlet and exhaust pipe; 17- inlet and exhaust pipe structure base; 18- quick connector; 19- high-pressure explosion-proof hose; 20- inlet and exhaust regulating valve. DETAILED DESCRIPTION

[0017] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0018] In the various embodiments of the present invention, for ease of description and not limitation, the term "connection" used in the patent application specification and claims is not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "below," "left," and "right" are used solely to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0019] When the inflation valve is opened, the inflation valve is closed, and the inflation valve is in a closed state, and the inflation valve is in a closed state. When the inflation valve is opened, the inflation valve is closed and the inflation valve is in a closed state. When the inflation valve is opened, the inflation valve is opened and the inflation valve is in a closed state. When the inflation valve is opened, the inflation valve is opened and the inflation valve is in a closed state. When the inflation valve is opened, the inflation valve is opened and the inflation valve is in a closed state. The base of the intake and exhaust rod mechanism is threadedly connected to an auxiliary air channel, and the auxiliary air channel includes a quick connector, a high-pressure explosion-proof hose and an intake and exhaust regulating valve. The base of the intake and exhaust rod mechanism is threadedly connected to one end of the quick connector, and the other end of the quick connector is sleeved with the high-pressure explosion-proof hose. The bottom end of the high-pressure explosion-proof hose is sleeved with the intake and exhaust regulating valve. The intake and exhaust regulating valve is connected to the interface of the electric inflation pump to form a structure for regulating the internal pressure of the airbag.

[0020] Example

[0021] The structure of this embodiment is further described with reference to the accompanying drawings.

[0022] As shown in Figure 1, the present invention provides a rapid inflation system for an airbag-type leak plugger, comprising an inflation control valve 1, a disposable high-pressure gas cylinder 2, an inlet and outlet pipe assembly 3, an airbag stiffness adjustment assembly 4, and a trigger cord 5. The inflation control valve 1 is screwed to the center of the bottom of the inlet and outlet pipe assembly 3, with the disposable high-pressure gas cylinder 2 screwed to its lower end. The inflation control valve 1 features a U-shaped airway, connecting the airway between the disposable high-pressure gas cylinder 2 and the outlet pipe assembly 3. The inflation control valve 1 controls the release of high-pressure gas from the disposable high-pressure gas cylinder 2, allowing the gas to flow through the U-shaped airway into the inlet and outlet pipe assembly 3, thereby rapidly inflating the airbag. The airbag stiffness adjustment assembly 4 is mounted on the outside of the bottom of the inlet and outlet pipe assembly 3 and is used to precisely adjust the stiffness of the leak-plugging airbag to suit different operating conditions. The trigger cord 5, made of nylon, is used to trigger the inflation control valve 1. The flexible cord effectively increases the control distance of the inflation system.

[0023] like Figure 2 、 3As shown, the inflation control valve 1 comprises an upper valve body 6, a lower valve body 7, a needle 8, a needle return spring 9, a crank 14, a rotating pin 12, a pin shaft 13, a pull cord connection block 15, a pull cord connection block return spring 10, and a screw plug 11. The upper valve body 6 is divided into upper, middle, and lower cavities for mounting internal components. It features a U-shaped air passageway that connects to the air passage within the intake and exhaust stem assembly 3. The lower valve body 7 has a threaded bottom center for mounting a disposable gas cylinder 2. The upper and lower valve bodies 6 and 7 are connected by screws, with a sealing gasket installed between them to ensure the overall airtightness of the valve body. The needle 8 is mounted within an inverted T-shaped circular groove below the upper valve body 6. The needle 8 has a three-stage design: cylindrical at the top and middle sections, with the middle section having the largest circular cross-section. The lower end features a triangular blade-shaped structure, the tip of which is designed to contact the metal membrane at the mouth of the disposable high-pressure gas cylinder 2, releasing the gas within. The needle return spring 10 is located in the lower cavity of the upper valve body 6, fitted over the lower end of the needle 8, and in contact with the upper surface of the lower valve body 9. The drawstring connection block spring 10 is located in the upper cavity of the upper valve body 6. This cavity is a circular through-hole structure that guides the spring and is sealed at the top with a wire plug 11. One end of the drawstring connection block spring 10 is connected to the wire plug 11 at the top of the upper valve body 6, and the other end is connected to the drawstring connection block 15. One end of the crank 14 is hinged to the cavity in the middle of the upper valve body 6 via a rotating pin 12. The other end has a guide slot at the top, connected to the drawstring connection block 15 via a pin 13. The pin 13 can slide within the guide slot at the top of the crank 14. Under the dual action of the drawstring connection block spring 10 and the needle return spring 9, the crank 14 forms linear contact with the top of the needle 8. The upper portion of the cable connector 15 is connected to the lower portion of the cable connector return spring 10. A pin 13 is mounted in the middle, and a trigger cable mounting hole is provided at the lower portion. The side of the upper valve body 6 near the cable connector 15 is hollowed out, allowing the cable connector 15 to be flipped out of the upper valve body 6, facilitating the tying and untying of the trigger cable 5. The cable connector 15, along with the crank 14, the pin 13, and the upper valve body 6, form a sinusoidal linkage mechanism. Under the guidance of the cable connector spring 10 and the crank 14 guide slot, pulling the trigger cable 5 causes the cable connector 15 to slide vertically.

[0024] like Figure 2 As shown, the “U”-shaped air passage in the inflation control valve 1 and the horizontal air passage are processed as through holes, and both ends are sealed with screw plugs 11 .

[0025] like Figure 4As shown, the intake and exhaust pipe assembly 3 includes an intake and exhaust pipe 16 and an intake and exhaust pipe structure base 17. The intake and exhaust pipe 16 is a tubular structure. A boss is provided at the top of the intake and exhaust pipe 16, which is used to fix the airbag by cooperating with an external nut. A number of exhaust circular holes are evenly distributed on the pipe wall from the top to the middle, and the bottom end is connected to the intake and exhaust pipe structure base 17 through a thread; the intake and exhaust pipe structure base 17 is a T-shaped cross-section structure with a vent hole in the middle. The upper part is connected to the intake and exhaust pipe 16, and the center of the bottom is connected to the inflation control valve 1 through a sealing gasket and a screw. A pipe thread hole is provided on the outside of the bottom for connecting to the airbag stiffness adjustment assembly 4.

[0026] like Figure 5 As shown, the airbag stiffness adjustment assembly 4 comprises a quick connector 18, a high-pressure explosion-proof hose 19, and an air inlet and outlet regulating valve 20. One end of the quick connector 18 connects to the threaded hole of the air inlet and outlet pipe structure base 17, and the other end connects to the air inlet and outlet regulating valve 20 via the high-pressure explosion-proof hose 19. The air inlet and outlet regulating valve 20 is a three-way valve design. Port A connects to the high-pressure explosion-proof hose 19, port B is the interface for the electric air pump, equipped with a check valve for connecting to the electric air pump for air replenishment, and port C is the exhaust port equipped with a pressure release button for exhaust. The air inlet and outlet regulating valve 20 is normally closed. Airbag stiffness can be adjusted by operating the air inlet and outlet regulating valve.

[0027] The method of using the airbag leak stopper rapid inflation system provided by the present invention is described as follows:

[0028] When using an airbag sealer to seal a leak, the operator places it at the appropriate location on the breach and begins inflating the airbag. Initially, the airbag is deflated. High-pressure gas is sealed within the disposable high-pressure gas cylinder 2, the needle 8 is suspended above the metal membrane of the disposable high-pressure gas cylinder 2, and the airbag stiffness adjustment assembly 4 is closed. Pulling the trigger cord 5 causes the cord connection block 15 to move downward, rotating the crank 14. This pushes the needle 8 downward along the guide groove, puncturing the metal membrane of the disposable high-pressure gas cylinder 2 and releasing the high-pressure gas within. Driven by the needle return spring 9 and the pressure of the high-pressure gas, the needle 8 moves upward, compressing the sealing ring and sealing the U-shaped airway. The high-pressure gas flows through the U-shaped airway into the inlet and outlet pipe assembly 3 and is released into the airbag through several circular outlet holes on the inlet and outlet pipe 16, extending from the top to the center of the pipe. This results in the airbag portion outside the breach inflating first, followed by the portion inside the breach. As the needle 8 moves upward, the return spring 10 of the drawstring connector pulls the drawstring connector 15, driving the crank 14 back to its original position. Once the airbag is fully inflated, it forms a sealed cavity with the rapid inflation system. If the external water pressure changes, the airbag stiffness adjustment assembly 4 can be used to adjust the airflow and deflate the airbag, achieving a good sealing effect.

[0029] The above-mentioned detailed description of a rapid inflation system of an airbag leak stopper with reference to the embodiment is illustrative rather than restrictive, and several embodiments can be listed according to the limited scope. Therefore, changes and modifications without departing from the overall concept of the present invention should fall within the scope of protection of the present invention.

Claims

1. A rapid inflation system for an airbag-type leak stopper, comprising an airbag and a gas storage cylinder, characterized by: When the air bag is inflated, the air is discharged by the airbag, and the inflation air bag is discharged by the airbag. When the air bag is inflated, the air is discharged by the airbag. When the air bag is inflated, the air is discharged by the airbag. When the air bag is inflated, the air is discharged by the airbag. The seat has a T-shaped cross-section structure with a vent in the middle. The upper part is connected to the intake and exhaust pipes, and the center of the bottom is connected to the inflation control valve through a sealing gasket and screws. A pipe threaded hole is provided on the outer side of the bottom for connecting to the airbag stiffness adjustment assembly. A number of intake and exhaust circular holes connected to the through holes are evenly distributed on the four walls of the intake and exhaust pipes. The intake and exhaust rod mechanism is a segmented intake structure. The base is sealed and connected to the upper valve body of the inflation control valve by screws. The base of the intake and exhaust rod mechanism is threaded with an airbag stiffness adjustment assembly. The airbag stiffness adjustment assembly includes a quick connector, a high-pressure explosion-proof hose and an intake and exhaust regulating valve. The base is threaded with one end of the quick connector, and the other end of the quick connector is sleeved with the high-pressure explosion-proof hose. The bottom end of the high-pressure explosion-proof hose is sleeved with the intake and exhaust regulating valve. The intake and exhaust regulating valve is connected to the interface of the electric inflation pump to form a structure for adjusting the internal pressure of the airbag.

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