An air bag

Abstract

The present invention relates to the technical field of ship supporting equipment, and specifically to an airbag, comprising an airbag body and a first valve and a combined airbag head respectively arranged at two ends of the airbag body; the combined airbag head comprises an airbag mouth and a core shaft assembly at one end of the airbag body; the core shaft assembly is installed on the airbag mouth, and a pressure sensing chip for testing the pressure in the airbag is installed inside the core shaft assembly; the pressure sensing chip is wirelessly connected to a receiver; the present invention makes the airbag mouth and the core shaft assembly into two independent parts that can be combined, and the core shaft assembly can be installed in place after the airbag vulcanization is completed to avoid high temperature damage to the chip; at the same time, a pressure sensing system based on a wireless network is installed in the core shaft assembly, and the pressure signal is transmitted through its own wireless transmission circuit, and then the receiver directly feeds back to the receiving panel of the commander, so that the operator can grasp the pressure change of each airbag.

Description

Technical Field

[0001] The present invention relates to the technical field of ship supporting equipment, and in particular to an airbag, in particular to a high-strength airbag which uses chip technology to sense and reflect changes in air pressure in the airbag. Background Art

[0002] Airbag products have been widely used in ship loading, launching, ship supporting, marine engineering, military industry, engineering and other fields, and the market is relatively mature. This special energy-saving and environmentally friendly product originally created in my country has a great support for shipbuilding enterprises, especially private enterprises. It is convenient, durable, easy to put and put, and the related supporting equipment is simple and easy to take. Due to the relatively rough operating environment of the airbag, in addition to the repeated installation and disassembly of the pressure gauge during transportation and storage, it is inevitable that the pressure gauge installed on the airbag will be dropped and mixed with mud and water during use, which will cause serious damage to the pressure gauge installed on the airbag. It is impossible to repeatedly load and unload during operation, so that the pressure gauge of many airbags cannot be read during use or cannot truly indicate the pressure change of the airbag due to damage. In most cases, after mastering the air pressure when the airbag is inflated, the experienced operator taps the inflatable bag body and estimates it by listening to the sound. This is feasible for less important operations or when the redundancy is relatively large, but for the transportation of important equipment and the launching and disembarking of large ships, especially when the center of gravity passes the inflection point, the change in the internal pressure of the airbag is a very important parameter. Controlling this parameter is very important for the safe use of the airbag, ensuring the safety of the carrying ship and extending the service life of the airbag. Summary of the invention

[0003] The purpose of the present invention is to provide an airbag to solve the problem that the airbags in the prior art can only be used in relatively rough environments and the pressure gauges installed on the airbags are easily damaged, making it impossible to read the pressure gauges of many airbags during use or unable to truly indicate the changes in the airbag pressure due to damage.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] An airbag comprises an airbag body and a first valve and a combined airbag head respectively arranged at two ends of the airbag body; the combined airbag head comprises an airbag mouth and a core shaft assembly at one end of the airbag body; the core shaft assembly is installed on the airbag mouth, and a pressure sensing chip for testing the pressure inside the airbag is installed inside the core shaft assembly; the pressure sensing chip is wirelessly connected to a receiver.

[0006] Furthermore, the core shaft assembly includes a cover and a core shaft body; the core shaft body is a rotating body with a threaded outer diameter, and a stepped main through hole is opened in the center; the core shaft body is connected to the internal thread of the airbag nozzle through the external thread a set on the outer diameter of the middle section of its shaft neck, and is connected to the second valve for inflating the airbag through the external thread b set at one end thereof; the pressure sensor chip is installed in the chip chamber at the other end of the core shaft body and fixed by the cover, and a through hole connected to the main through hole is opened in the center of the cover to facilitate the passage of airflow and the airbag body; two side through holes that pass through the main through hole to vent air are opened on one side of the core shaft body close to the chip chamber, and preferably, the axis of the side through hole is perpendicular to the axis of the core shaft body; the two side through holes are connected to the airbag body; when inflating, the air flows through the main through hole, and then enters the airbag body through the side through hole, and when deflated, the air flows through the side through hole and then flows out through the main through hole.

[0007] Furthermore, a lifting ring for traction or lifting is provided on the shaft neck between the external thread b and the external thread a.

[0008] Furthermore, the second valve is connected to the air nozzle hose.

[0009] Furthermore, an elastic gasket is provided between the sealing cover and the pressure sensing chip to prevent the pressure sensing chip from loosening.

[0010] Furthermore, a sealing ring is provided at the connection between the airbag nozzle and the core shaft body. Preferably, the sealing ring is provided on a side close to the edge of the airbag nozzle. The sealing ring is an "O" ring or a raw tape to improve the sealing effect and prevent gas leakage from the connection between the airbag nozzle and the core shaft body.

[0011] Furthermore, the receiver includes a wireless receiving circuit, a microprocessor and a display part; the microprocessor is used to control the reception of data transmitted by the pressure sensing chip; the wireless receiving circuit is used to decode the formatted data to obtain pressure information; and the display part is used to display the pressure information.

[0012] Specifically, the pressure sensor chip is equipped with a wireless transmitting circuit, which transmits the collected data to a receiver through its own wireless transmitting circuit. The receiver receives the data transmitted by the pressure sensor chip via radio under the control of a microprocessor, and then the decoder in the wireless receiving circuit decodes the formatted data to obtain the current pressure information of the environment, and then displays the pressure information on the receiving panel of the display part.

[0013] Furthermore, the receiver is connected to a computer or mobile phone terminal, and the pressure information is directly transmitted to the computer or mobile phone terminal for display through the receiver, which is convenient for on-site monitoring. Command and control personnel can grasp the pressure changes of each airbag without close inspection, which is conducive to timely arrangement and feedback of the real-time status of the airbag during operation, and safe production.

[0014] Furthermore, the wireless transmission distance of the pressure sensing chip is more than 30 meters, and the receiver can receive the signals from all airbags within a radius of 30 meters, and can grasp and record the internal pressure change data fed back by these airbags.

[0015] Technical effects of the present invention:

[0016] Compared with the prior art, an airbag of the present invention makes the airbag mouth and the core shaft assembly into two independent parts that can be combined. The core shaft assembly can be installed in place after the airbag is vulcanized to prevent the chip from being damaged by high temperature. At the same time, a pressure sensing system based on a wireless network is installed in the core shaft assembly. The pressure signal is transmitted through its own wireless transmitting circuit, and then the receiver directly feeds back to the commander's receiving panel, making it convenient for the operator to grasp the pressure changes of each airbag. Generally, the length of large ships is more than 150 meters to about 200 meters. During the launching process of such large ships, airbags are generally discharged at intervals of 2.5-4 meters (depending on the diameter of the airbags). The receiver can pre-set the position sequence of the airbags, so that one receiver can receive the signals sent by more than 20 airbags. Through three to four receivers, the internal pressure changes of all airbags during the launching process of the entire large ship can be collected on a 250-meter-long launching ramp, which is convenient for on-site monitoring. Command and control personnel can grasp the pressure changes of each airbag without close inspection, which is conducive to timely arrangement and feedback of the real-time status of the airbags during operation, and safe production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structural principle of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the combined airbag head of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the mandrel assembly of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the pressure sensor chip of the present invention.

[0021] Among them, 1 is the first valve, 2 is the airbag body, 3 is the combined airbag head, 4 is the cover, 5 is the gasket, 6 is the pressure sensor chip, 7 is the airbag nozzle, 8 is the sealing ring, 9 is the core shaft body, 10 is the air nozzle hose, 11 is the side through hole, 12 is the external thread a, 13 is the lifting ring, 14 is the main through hole, 15 is the external thread b, 16 is the through hole, and 17 is the second valve. DETAILED DESCRIPTION

[0022] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] Embodiment 1:

[0024] like Figure 1-2 As shown, the present invention relates to an airbag, comprising an airbag body 2 and a first valve 1 and a combined airbag head 3 respectively arranged at both ends of the airbag body 2; the combined airbag head 3 comprises an airbag mouth 7 and a core shaft assembly for installing a pressure sensing chip 6. Since the airbag is vulcanized as a whole and the airbag body 2 is a flexible body, it is not convenient to install and fix, and the chip cannot withstand the high temperature of vulcanization, and the battery must be replaced regularly. Therefore, the present invention makes the airbag mouth 7 and the core shaft assembly into two independent parts that can be combined, and the core shaft assembly can be installed in place after the airbag is vulcanized.

[0025] like Figure 2-4 As shown, the mandrel assembly is a mother part for installing the pressure sensing chip 6, including a mandrel body 9, a cover 4, and a pressure sensing chip 6; the mandrel body 9 is a rotating body with a threaded outer diameter, the outer thread a12 in the middle section is used to connect with the inner thread of the airbag nozzle 7 body mouth, the outer thread b15 at the right end is used to connect the second valve 17 for airbag inflation, and the second valve 17 is connected to the air nozzle hose 10; a lifting ring 13 for traction or lifting is provided on the shaft neck between the outer thread b15 and the outer thread a12; a sealing ring 8 is provided at the connection between the airbag nozzle 7 and the mandrel body 9, and the sealing ring 8 is an "O" ring or a raw tape; the inner diameter of the center of the mandrel body 9 is provided with a main through hole 14 for inflation and deflation, and the innermost is where the air pressure sensing chip is placed 6, the air pressure sensing chip 6 is fixed to the left end of the mandrel body 9 by the cover 4, and the cover 4 has a through hole 16 in the center, which is convenient for the airflow to pass through the airbag body 2 to sense the pressure in the airbag body 2; an elastic gasket 5 is arranged between the cover 4 and the pressure sensing chip 6 to prevent the pressure sensing chip 6 from loosening; a pair of side through holes 11 perpendicular to the axis of the mandrel body are arranged on the right side of the chip chamber on the mandrel body 9, and the side through holes 11 are connected with the main through hole 14 of the mandrel body 9 and the airbag body 2, and the airflow passes through the main through hole 14 and the side through holes 11 and communicates with the airbag body 2; the mandrel body 9 can be loaded and unloaded on the airbag mouth 7, which is convenient for the airbag to be installed after the overall vulcanization process to avoid high temperature damage to the chip. The receiver is portable and can simultaneously receive signals from no less than 10 airbags within the chip transmission distance. The receiver can be relayed and connected to a computer or mobile phone, so that the on-site operator can easily grasp the pressure changes of each airbag.

[0026] Working principle: The signal transmission distance of the pressure sensor chip 6 of the present invention reaches more than 30 meters, and the working range can be between -20 degrees and 55 degrees, so that the receiver can receive the signals sent by all airbags within a radius of 30 meters, and can grasp and record the internal pressure change data fed back by these airbags. Through several receivers, the internal pressure changes of all airbags during the entire large ship launching or large workpiece transportation process can be collected on the working surface. The packaging of the pressure sensor chip 6 is waterproof, and a small amount of water ingress into the airbag does not affect the work, but it cannot invade the water. The built-in battery life is maintained at about 2 years, reducing the number of maintenance times. When the number of airbags in use is small or the range is small, one receiver can control the status of all airbags. When the number of airbags is large or the range is large, the receiver's relay can be used to connect to the computer for operation.

[0027] The present invention collects signals through wireless transmission for an external portable device that can receive signals. The signals sent can be transmitted to a distance of more than 30 meters to ensure that the receiver can receive a clear airbag pressure signal at least 30 meters away in radius. Since the airbag is a durable product, it is inevitable that external injuries such as scratches, cuts, and bruises or internal injuries (frame material damage) will occur during long-term repeated use. When there is a large load-bearing capacity, or if there are protrusions on the object being carried, or if the ground is not cleaned and there are foreign objects that bruise, damage and explosion will occur, endangering the safety of surrounding personnel. The present invention can avoid the harm to operators caused by shock waves of explosion damage at a distance of 20 meters. Therefore, on-site operators can use the function of the pressure sensor chip 6 to collect the internal pressure signal of the airbag in real time feedback within a safe distance of 30 meters, and adjust the working process in time.

[0028] The above-mentioned specific implementations are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific implementations. Any appropriate changes or modifications made to them by ordinary technicians in the technical field that conform to the claims of the present invention shall fall within the patent protection scope of the present invention.

Claims

1. An airbag, characterized in that: The invention comprises an airbag body (2), a first valve (1) respectively arranged at two ends of the airbag body (2), and a combined airbag head (3); the combined airbag head (3) comprises an airbag nozzle (7) at one end of the airbag body (2) and a core shaft assembly; the core shaft assembly is mounted on the airbag nozzle (7), and a pressure sensing chip (6) for testing the pressure inside the airbag is installed inside the core shaft assembly; the pressure sensing chip (6) is wirelessly connected to a receiver; The core shaft assembly comprises a cover (4) and a core shaft body (9); the core shaft body (9) is a rotating body with a threaded outer diameter, and a stepped main through hole (14) is provided at the center; the core shaft body (9) is connected to the internal thread of the airbag nozzle (7) through an external thread a (12) provided on the outer diameter of the middle section of its shaft neck, and is connected to the second valve (17) for inflating the airbag through an external thread b (15) provided at one end thereof; the pressure sensing chip (6) is installed in the chip chamber at the other end of the core shaft body (9), and is fixed by the cover (4); two side through holes (11) are provided on one side of the core shaft body (9) close to the chip chamber, and are connected to the main through hole (14) for venting air, and the two side through holes (11) are both connected to the airbag body (2); An elastic gasket (5) is provided between the cover (4) and the pressure sensor chip (6); a through hole (16) communicating with the main through hole (14) is provided at the center of the cover (4); A sealing ring (8) is provided at the connection between the airbag nozzle (7) and the core shaft body (9); The receiver comprises a wireless receiving circuit, a microprocessor and a display part; the microprocessor is used to control the reception of data transmitted by the pressure sensing chip (6); the wireless receiving circuit is used to decode the formatted data to obtain pressure information; and the display part is used to display the pressure information.

2. The airbag according to claim 1, characterized in that: A lifting ring (13) for traction or lifting is provided on the shaft neck between the external thread b (15) and the external thread a (12).

3. The airbag according to claim 1, characterized in that: The second valve (17) is connected to the air nozzle hose (10).

4. The airbag according to claim 1, characterized in that: The sealing ring (8) is an "O" ring or a raw tape.

5. The airbag according to claim 1, characterized in that: The receiver is connected to a computer or a mobile phone terminal.

6. The airbag according to any one of claims 1 to 4, characterized in that: The wireless transmission distance of the pressure sensor chip (6) is more than 30 meters.

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