Self-inflating waterproof and anti-collision device

Abstract

The invention relates to the field of safety protection, in particular to a self-inflation waterproof and anti-collision device which comprises a plurality of air chamber units, each air chamber unit is connected with the adjacent air chamber unit, the air chamber units form an air bag body, and the air bag body expands in an inflation state to form a hexahedron structure; the air chamber units further comprise air inlet air chamber units located at the four bottom corners of the bottom of the hexahedron structure respectively, the four air inlet air chamber units are each provided with a water soaking hole, and a floater one-way valve is arranged in each water soaking hole. Carbon dioxide gas is automatically generated through chemical reaction between a solid mixture in the gas inlet chamber unit at the bottom and water, a hexahedron structure formed by mutually connecting the gas chamber units is adopted, a protected object can be wrapped in all directions from the upper, lower, left, right, front and back directions after inflation, and water and a collision object are prevented from making direct contact with the protected object.

Description

Technical Field

[0001] This invention relates to the field of safety protection, specifically to a self-inflating, waterproof, and collision-resistant device. Background Technology

[0002] When sudden torrential rains cause urban flooding, mudslides, or other natural disasters such as earthquakes and tsunamis, or when emergencies require water rescue, how to prevent large, valuable properties (such as cars) and important equipment from being damaged by water becomes a major concern for property owners. The emergence of waterproof and collision-resistant devices is like putting on a "water life jacket," using technology and ingenuity to build a solid waterproof barrier for them.

[0003] Traditional protective methods lack flexibility and struggle to simultaneously address both sinking prevention (inflatable buoyancy) and air leakage issues. Most current products still rely on air pumps for inflation, requiring advance disaster prediction, which is cumbersome and difficult to maintain pressure for extended periods. Automatic inflation devices depend on built-in batteries and are equipped with air pumps, pressure sensors, and liquid level sensors, generally suffering from battery life and energy consumption problems. They require continuous air replenishment to maintain pressure, and battery life is limited, typically around 40 hours. Furthermore, current products often use single trigger mechanisms (such as micro-pressure sensing), resulting in poor sensitivity and accuracy, frequently triggering erroneously.

[0004] The existing products are all single-chamber capsules, and their protective performance still has room for improvement. Although some products can withstand conventional impacts, they may still be damaged by sharp objects. Once punctured and leaking air, water can enter the capsule and cannot be discharged, causing more serious damage. Summary of the Invention

[0005] This invention addresses the technical problems existing in the prior art by providing a self-inflating, waterproof, and collision-resistant device.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a self-inflating waterproof and anti-collision device, the device comprising a plurality of air chamber units, and each air chamber unit being connected to an adjacent air chamber unit, the plurality of air chamber units forming an airbag body, the airbag body expanding to form a hexahedral structure in an inflated state; The plurality of air chamber units also include air inlet air chamber units located at the four bottom corners of the bottom of the hexahedral structure. Each of the four air inlet air chamber units is provided with a water immersion hole, and each water immersion hole is provided with a float one-way valve.

[0007] In a preferred embodiment, in order to establish a directional gas transmission channel between the air chamber units so that the gas can only flow from the high-pressure air chamber unit to the low-pressure air chamber unit and cannot flow back in the opposite direction, each air chamber unit is connected to an inflation one-way valve. The four air intake air chamber units generate gas and transmit the gas to the adjacent air chamber units through the inflation one-way valve. The airbag body completes the expansion of the hexahedral structure in an inflation sequence from bottom to top.

[0008] Furthermore, the airbag body expands its hexahedral structure by inflating from bottom to top. This inflation sequence follows the physical principle of buoyancy generation. The bottom air chamber unit is inflated first to quickly provide basic buoyancy for the device, allowing the protected object to be lifted off the water surface first and avoid being soaked in water. Then, it is inflated layer by layer along the side to the top air chamber unit, and finally the inner air chamber unit is inflated.

[0009] In a preferred embodiment, each of the four air intake chambers contains a solid mixture of oxalic acid, sodium carbonate, sodium bicarbonate, and calcium oxide. The reaction principle is as follows: oxalic acid reacts with both sodium carbonate and sodium bicarbonate in a metathesis reaction with water, rapidly generating carbon dioxide gas. Calcium oxide is incorporated into the solid mixture as an inhibitor. Its rate-controlling principle is that calcium oxide reacts with water, consuming some of the water entering the chamber and simultaneously adjusting the pH of the reaction system, thereby precisely controlling the reaction rate between oxalic acid and carbonates, preventing the reaction from being too rapid and causing the pressure inside the chamber to become excessively high. Furthermore, calcium oxide has strong hygroscopic properties, absorbing any moisture that may be present in the solid mixture, preventing premature gas production due to moisture absorption.

[0010] In a preferred embodiment, the inflation check valve includes a body, a nut, a spring, a snap ring, a piston rod, and a valve core; The main body has a cavity for assembling and working of the adapted components, and the main body is detachably and fixedly connected with a spare nut, such as by a threaded connection. The spare nut is installed at the port position of the main body and forms an external assembly frame with the main body, which plays a role in axially limiting and fixing the assembly components inside the main body, preventing the internal components from coming out of the port of the main body. The spring is installed in the cavity of the main body, and the retaining ring is embedded in a preset slot in the internal cavity of the main body. The piston rod passes through the internal cavity of the main body, and the valve core is fixedly connected to the tail of the piston rod.

[0011] Furthermore, the spring provides elastic power for the movement of the valve core, the piston rod provides a path for power transmission, the valve core provides an actuator for gas control, and the snap ring provides a limit for the movement of the piston rod. The assembly positions of each component are matched with each other, ensuring the realization of the core function of the one-way valve.

[0012] In a preferred embodiment, the retaining ring is fixedly engaged with the body through a preset retaining groove. The retaining ring forms an axial limiting structure within the body cavity and moves in contact with the piston rod to limit excessive axial movement of the piston rod within the body, prevent the piston rod from slipping out of the body cavity, and constrain the stroke of the piston rod.

[0013] In a preferred embodiment, the piston rod passes through the cavity of the main body and is slidably connected to the main body. The axial movement of the piston rod is guided by the cavity of the main body and limited by the retaining spring. The piston rod elastically abuts against the spring, and the tail of the piston rod is fixedly connected to the valve core. On the one hand, it bears the elastic force of the spring, and on the other hand, it can reciprocate along the axial direction in the cavity of the main body, so as to realize the function of transmitting the elastic force of the spring to the valve core.

[0014] In a preferred embodiment, the valve core and the piston rod are fixedly connected and move synchronously, and the valve core is slidably connected to the body, sliding together with the piston rod in the body cavity along the axial direction; the valve core cooperates with the air inlet of the body, and can press against or disengage from the air inlet of the body under the combined action of the thrust of the piston rod and the elastic force of the spring, and is the core cooperating component for controlling the unidirectional flow of gas.

[0015] In a preferred embodiment, each of the four intake chamber units is equipped with an overpressure relief valve, the overpressure relief valve having a starting pressure of 0.4±0.01MPa, and is equipped with a waterproof indicator light and a water-activated battery as an emergency power source.

[0016] The function of the overpressure relief valve is to automatically activate when the internal pressure of the intake chamber unit exceeds 0.4±0.01MPa due to reasons such as the rapid reaction of the solid mixture or excessive water intake. This releases excess gas in the chamber, reduces internal pressure, and prevents the pressure from exceeding the structural bearing capacity of the intake chamber unit.

[0017] In a preferred embodiment, a waterproof sealing zipper is provided on one side of the airbag body, located on the air chamber unit, and the waterproof sealing zipper is pocket-shaped.

[0018] The beneficial effects of this invention are as follows: carbon dioxide gas is generated autonomously by the chemical reaction between the solid mixture in the bottom air inlet unit and water. The hexahedral structure composed of multiple interconnected air chamber units can fully envelop and protect the object from six directions (up, down, left, right, front, and back) after inflation, preventing water and collision objects from directly contacting the protected object. The stability of the hexahedral structure can also be used to disperse the collision force, improving the anti-collision effect. At the same time, directional gas transmission is achieved between each air chamber unit through an inflation one-way valve. Even if a single air chamber unit is punctured and damaged by a sharp object, the other air chamber units can still maintain an inflated state, preventing overall leakage and sinking. This completely solves the technical defect that complete failure occurs when a single air chamber is damaged. It abandons the traditional air pump inflation and battery-dependent automatic inflation modes, solving the problems of air pump inflation requiring advance disaster prediction, cumbersome manual operation and difficulty in maintaining air pressure for a long time, and battery-powered inflation devices having limited battery life, high energy consumption and frequent air replenishment. It autonomously generates carbon dioxide gas by chemically reacting a solid mixture in the bottom air intake chamber unit with water, without external power or manual intervention. It can be instantly triggered to inflate upon contact with water, which is in line with the actual scenarios of sudden water disasters such as urban flooding and floods, and fundamentally eliminates the technical drawbacks related to battery life, energy consumption and air replenishment. Attached Figure Description

[0019] Figure 1 This is an external view of the self-inflating, waterproof, and collision-resistant device of the present invention; Figure 2 This is a diagram showing the arrangement of the gas generation chamber of the self-inflating, waterproof, and collision-resistant device of the present invention. Figure 3 This is a diagram showing the inflation flow path of the self-inflating waterproof and anti-collision device of the present invention. Figure 4 This is a schematic diagram of the inflation check valve structure of the present invention; Figure 5 This is a schematic diagram illustrating the working principle of the inflation check valve of the present invention; Figure 6 This is a schematic diagram showing the location of the emergency power supply for the waterproof position light and water-activated battery of the present invention. Figure 7 This is a diagram showing the location of the waterproof sealing zipper in the self-inflating, waterproof, and collision-resistant device of the present invention.

[0020] In the diagram, 1 is the main body; 2 is the spare part; 3 is the spring; 4 is the snap ring; 5 is the piston rod; and 6 is the valve core. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] like Figures 1-7 As shown, this embodiment provides: a self-inflating waterproof and anti-collision device, the device includes several air chamber units, and each air chamber unit is connected to an adjacent air chamber unit. The several air chamber units form an airbag body, and the airbag body expands to form a hexahedral structure when inflated. Several air chamber units also include air inlet air chamber units located at the four bottom corners of the bottom of the hexahedral structure. Each of the four air inlet air chamber units is equipped with a water immersion hole, and each water immersion hole is equipped with a float check valve.

[0023] Please refer to Figure 1-7 As shown, this application further describes an airbag body composed of several air chamber units. These air chamber units are interconnected and expand to form a hexahedral structure after inflation. This structure provides maximum protection for the car placed inside, enveloping the car in six directions (up, down, left, right, front, and back) to form a closed protective space. This not only prevents external water and collision objects from directly contacting the car, but also utilizes the structural stability of the hexahedron to disperse the collision force. Furthermore, the inflated hexahedron has sufficient buoyancy to allow the car to escape from water environments such as floods and puddles.

[0024] In the above, the four air inlet chamber units are located at the four bottom corners of the hexahedral structure because the bottom corners are the parts that first come into contact with water when the device is in its natural placement state. Placing the core gas generation chamber unit here allows the device to trigger the gas generation reaction immediately upon encountering water. The immersion holes provide the necessary passage for water to enter the chambers, and the float check valve is designed to ensure that the chambers close after a certain amount of water has entered.

[0025] In order to construct a directional gas transmission channel between the air chamber units, so that the gas can only flow from the high-pressure air chamber unit to the low-pressure air chamber unit and cannot flow back in the opposite direction, each air chamber unit is connected to the adjacent air chamber unit by an inflation check valve. The four air intake air chamber units generate gas and transfer carbon dioxide to the adjacent air chamber units through the inflation check valve. The airbag body completes the expansion of the hexahedral structure in an inflation sequence from bottom to top.

[0026] Furthermore, the airbag body expands its hexahedral structure by inflating from bottom to top. This inflation sequence follows the physical principle of buoyancy generation. The bottom air chamber unit is inflated first to quickly provide basic buoyancy for the device, allowing the protected object to be lifted off the water surface first and avoid being soaked in water. Then, it is inflated layer by layer along the side to the top air chamber unit, and finally the inner air chamber unit is inflated.

[0027] Each of the four air intake chambers contains a solid mixture of oxalic acid, sodium carbonate, sodium bicarbonate, and calcium oxide.

[0028] The reaction principle is as follows: Oxalic acid can undergo a double decomposition reaction with water, and sodium carbonate and sodium bicarbonate can rapidly generate carbon dioxide gas. Calcium oxide is added to the solid mixture as an inhibitor. The rate control principle is that calcium oxide can react with water, consuming part of the water entering the gas chamber, and adjusting the pH of the reaction system. This allows for precise control of the reaction rate between oxalic acid and carbonates, preventing the reaction from being too fast and causing the pressure in the gas chamber unit to become too high instantaneously. Furthermore, calcium oxide has strong hygroscopic properties, absorbing any moisture that may be present in the solid mixture and preventing premature gas production due to moisture absorption.

[0029] Please refer to the appendix. Figure 4 The inflation check valve includes a body 1, a spare nut 2, a spring 3, a snap ring 4, a piston rod 5, and a valve core 6; The main body 1 has a cavity for assembling and working of the adapted components, and the main body 1 is detachably and fixedly connected with a spare nut 2, such as by a threaded connection to achieve a detachable fixed connection. The spare nut 2 is installed at the port position of the main body 1 and forms an external assembly frame with the main body 1, which plays a role in axially limiting and fixing the assembly components inside the main body 1, preventing the internal components from coming out of the port of the main body 1. Spring 3 is installed in the cavity of body 1, and snap ring 4 is embedded in the preset slot of the inner cavity of body 1. Piston rod 5 passes through the inner cavity of body 1, and valve core 6 is fixedly connected to the tail of piston rod 5.

[0030] Furthermore, spring 3 provides elastic power for the movement of valve core 6, piston rod 5 provides a path for power transmission, valve core 6 provides an actuator for gas control, and snap ring 4 provides a limit for the movement of piston rod 5. The assembly positions of each component are matched with each other, ensuring the realization of the core function of the one-way valve.

[0031] Spring 3 is elastically abutted against body 1. One end of spring 3 abuts against a pre-set limiting groove in the cavity of body 1, and the other end of spring 3 abuts against piston rod 5 and is in a compressed and ready-to-spring assembly state, providing elastic force for the subsequent locking action of valve core 6.

[0032] The retaining ring 4 is fixedly engaged with the body 1 through a preset retaining groove. The retaining ring 4 forms an axial limiting structure in the cavity of the body 1 and moves against the piston rod 5 to limit the excessive axial movement of the piston rod 5 in the body 1, prevent the piston rod 5 from slipping out of the cavity of the body 1, and constrain the movement stroke of the piston rod 5.

[0033] The piston rod 5 passes through the cavity of the body 1 and is slidably connected to the body 1. The axial movement of the piston rod 5 is guided by the cavity of the body 1 and limited by the snap ring 4. The piston rod 5 elastically abuts against the spring 3, and the tail of the piston rod 5 is fixedly connected to the valve core 6. On the one hand, it bears the elastic force of the spring 3, and on the other hand, it can slide back and forth along the axis in the cavity of the body 1 to realize the function of transmitting the elastic force of the spring 3 to the valve core 6.

[0034] The valve core 6 and the piston rod 5 are fixedly connected and move synchronously. The valve core 6 is slidably connected to the body 1 and slides along the axial direction with the piston rod 5 in the cavity of the body 1. The valve core 6 cooperates with the air inlet of the body 1 and can press against or disengage from the air inlet of the body 1 under the combined action of the thrust of the piston rod 5 and the elastic force of the spring 3. It is the core component for controlling the unidirectional flow of gas.

[0035] Please refer to the appendix. Figure 6 Each of the four air intake chambers is equipped with an overpressure relief valve with a starting pressure of 0.4±0.01MPa, and is also equipped with a waterproof indicator light and a water-activated battery as an emergency power source.

[0036] The overpressure relief valve is designed to automatically activate when the internal pressure of the intake chamber unit exceeds 0.4±0.01MPa due to reasons such as rapid reaction of solid mixture or excessive water intake. This releases excess gas in the chamber, reduces internal pressure, and prevents the pressure from exceeding the structural bearing capacity of the intake chamber unit.

[0037] Please refer to the appendix. Figure 7 A waterproof sealing zipper is provided on one side of the airbag body, located on the air chamber unit. The waterproof sealing zipper is pocket-shaped.

Claims

1. A self-inflating, waterproof, and collision-resistant device, characterized in that, The device includes several air chamber units, and each air chamber unit is connected to an adjacent air chamber unit. The several air chamber units form an airbag body, and the airbag body expands to form a hexahedral structure when inflated. The plurality of air chamber units also include air inlet air chamber units located at the four bottom corners of the bottom of the hexahedral structure. Each of the four air inlet air chamber units is provided with a water immersion hole, and each water immersion hole is provided with a float one-way valve.

2. The self-inflating waterproof and collision-resistant device according to claim 1, characterized in that, Each of the air chamber units is connected to an adjacent air chamber unit by an inflation check valve. The four air intake air chamber units generate gas and transfer carbon dioxide to adjacent air chamber units through the inflation check valves. The airbag body completes the expansion of the hexahedral structure in an inflation sequence from bottom to top.

3. The self-inflating waterproof and anti-collision device according to claim 1, characterized in that, Each of the four air intake chamber units contains a solid mixture of oxalic acid, sodium carbonate, sodium bicarbonate, and calcium oxide.

4. The self-inflating waterproof and anti-collision device according to claim 2, characterized in that, The inflation check valve includes a body, a nut, a spring, a snap ring, a piston rod, and a valve core; The main body has a cavity for assembling and working of the adapter components, and the main body is detachably and fixedly connected to a spare nut, which is installed at the port position of the main body and forms an external assembly frame with the main body. The spring is installed in the cavity of the main body, and the retaining ring is embedded in a preset slot in the internal cavity of the main body. The piston rod passes through the internal cavity of the main body, and the valve core is fixedly connected to the tail of the piston rod.

5. A self-inflating, waterproof, and collision-resistant device according to claim 4, characterized in that, The spring is elastically abutted against the body, one end of the spring abuts against a pre-set limiting groove in the cavity of the body, and the other end of the spring abuts against the piston rod and is in a compressed and ready-to-spring assembly state.

6. A self-inflating, waterproof, and collision-resistant device according to claim 4, characterized in that, The retaining ring is fixedly engaged with the body through a preset retaining groove. The retaining ring forms an axial limiting structure within the body cavity and moves in contact with the piston rod.

7. A self-inflating, waterproof, and collision-resistant device according to claim 4, characterized in that, The piston rod passes through the cavity of the body and is slidably connected to the body. The piston rod is elastically abutted against the spring, and the tail of the piston rod is fixedly connected to the valve core.

8. A self-inflating, waterproof, and collision-resistant device according to claim 4, characterized in that, The valve core and piston rod are fixedly connected and move synchronously, while the valve core is slidably connected to the body.

9. A self-inflating, waterproof, and collision-resistant device according to claim 1, characterized in that, Each of the four air intake chamber units is equipped with an overpressure relief valve, the overpressure relief valve having a starting pressure of 0.4±0.01MPa, and is equipped with a waterproof indicator light and a water-activated battery as an emergency power source.

10. A self-inflating, waterproof, and collision-resistant device according to claim 1, characterized in that, The airbag body has a waterproof sealing zipper on one side located on the air chamber unit, and the waterproof sealing zipper is pocket-shaped.

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