Safety inflation device for air tightness detection of underwater unmanned vehicle

Abstract

The utility model belongs to the technical field of underwater equipment detection, and particularly relates to a safety inflation device for air tightness detection of an underwater unmanned vehicle. The device comprises an airtight meter, an inflation component, a one-way check valve, a safety relief valve, a copper internal wire ball valve and the like, can monitor the air pressure change in real time, takes measures in time when the air pressure is abnormal, and provides full protection for the air tightness detection process. Through the integrated airtight meter, the air pressure value in the unmanned underwater vehicle is monitored and displayed in real time, so that detection personnel can visually know the current air pressure state and timely find and handle abnormity. The device has double overpressure protection mechanisms, can quickly respond and release redundant gas when the air pressure abnormally rises, prevents equipment damage or explosion risks, and ensures the safety of equipment and personnel. The device is quick and convenient to connect and flexible in gas control, and the detection efficiency and the safety are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of underwater equipment testing technology, specifically relating to a safety inflation device for testing the airtightness of underwater unmanned vehicles. Background Technology

[0002] In the research and development and manufacturing of underwater unmanned vehicles, airtightness testing is an indispensable part of ensuring their safe use. This test typically involves filling the product under test with compressed gas at a certain pressure, then placing it in a liquid environment or applying a bubble-generating liquid to areas prone to leakage to observe and detect any leaks. As a standard procedure, airtightness checks use an air compressor to fill the system with compressed air at 0.05 MPa. This pressure is considered a safe pressure, sufficient to reveal the product's sealing performance without damaging the equipment.

[0003] However, there are safety hazards in actual operation. First, the output air pressure of the air compressor can only be adjusted by manually turning the pressure control valve, which is not precise enough. If the tester fails to adjust the output air pressure of the air compressor accurately, it may be filled with several times the pressure, far exceeding the safe air pressure.

[0004] Secondly, various potential factors, such as clogged air filters, internal component malfunctions, excessively high ambient temperatures, and excessive loads, can cause the air compressor's output pressure to rise abnormally, far exceeding safe limits. If an underwater unmanned vehicle is filled with excessively high pressure, it could not only damage the equipment and cause gas leaks, but in extreme cases, it could also trigger an explosion, posing a serious threat to personnel safety.

[0005] Therefore, developing a safe inflation device that can monitor air pressure changes in real time and take timely measures when air pressure is abnormal, thus providing sufficient protection for the airtightness testing of underwater unmanned vehicles, is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] In response to the work requirements and existing problems in the aforementioned background technology, this invention has considered and innovated in this regard, with the aim of providing a safe inflation device for air tightness testing of underwater unmanned vehicles, which is used to monitor abnormal air pressure conditions in real time and provide sufficient protection for the air tightness testing process.

[0007] To solve the above problems and achieve the above objectives, the present invention adopts the following technical solution:

[0008] A safety inflation device for airtightness testing of underwater unmanned vehicles, comprising:

[0009] Air tightness gauge (1), which is connected above the inflation component (2) and is used to measure the air pressure value inside the underwater unmanned vehicle in real time;

[0010] An inflation component (2) is provided, which includes an air inlet pipe (21) and an air delivery pipe (22), wherein the air delivery pipe (22) is connected below the air tightness gauge (1), and the air inlet pipe (21) is connected to one side of the air delivery pipe (22).

[0011] One-way check valve (3), which is connected to one side of the gas pipeline (22) to ensure that the gas flows into the underwater unmanned vehicle in a predetermined direction in the gas pipeline (22);

[0012] Safety pressure relief valve (4) is connected to one end of the air inlet pipe (21) near the air delivery pipe (22). When the air pressure in the pipe exceeds the threshold, it exhausts and releases pressure.

[0013] A copper internal wire ball valve (5) is connected to the middle of the air inlet pipe (21) and is used to control the opening and closing of the gas inflow.

[0014] As a preferred embodiment of this utility model, one end of the air intake pipe (21) is connected to an air intake quick interface (211), which can be connected to an air compressor through a pipe.

[0015] As a preferred embodiment of this utility model, one end of the gas supply pipe (22) is connected to a gas supply pipe quick interface (221), and the gas supply pipe quick interface (221) has threads.

[0016] As a preferred embodiment of this utility model, the air supply pipe (22) is connected to the airtight interface (61) of the underwater unmanned vehicle (6) through the air supply pipe quick interface (221) and the O-ring seal (62).

[0017] This invention ensures the safety of the airtightness testing process for underwater unmanned vehicles by real-time monitoring of air pressure changes, controlling gas flow direction and flow rate, and providing overload protection. Its working principle is as follows:

[0018] The air tightness gauge (1), as the core monitoring component of the device, is connected above the inflation component (2). During inflation, the air tightness gauge (1) measures and displays the air pressure inside the underwater unmanned vehicle (6) in real time, allowing the testing personnel to intuitively understand the current air pressure status and promptly detect any abnormalities. The inflation component (2) consists of an air inlet pipe (21) and an air delivery pipe (22). The air inlet pipe (21) is connected to an air compressor and is responsible for introducing compressed air into the device. The air delivery pipe (22) is connected below the air tightness gauge (1) and delivers compressed air into the underwater unmanned vehicle (6). The air delivery pipe (22) can be quickly and easily connected to the air tightness interface (61) of the underwater unmanned vehicle (6) through the air delivery pipe quick connector (221) and O-ring seal (62). A one-way check valve (3) is installed on one side of the air delivery pipe (22) to ensure that gas can only flow into the underwater unmanned vehicle (6) in a predetermined direction, effectively preventing gas backflow. The copper internal wire ball valve (5) is used to control the inflow of gas. Operators can flexibly control the start and end of the inflation process by opening or closing the copper internal wire ball valve (5).

[0019] Dual overpressure protection:

[0020] The safety relief valve (4) is the main overpressure protection device of the device and is set with a safety air pressure threshold. During normal inflation, when the compressed air in the air inlet pipe (21) does not reach the threshold, the safety relief valve (4) remains closed, allowing gas to continue to be filled into the underwater unmanned vehicle. When the air pressure rises abnormally and exceeds the set safety air pressure threshold, the pressure sensing mechanism inside the safety relief valve (4) will trigger the valve to open automatically and quickly release the excess gas, thereby reducing the air pressure inside the air inlet pipe (21) and the underwater unmanned vehicle (6) to prevent equipment damage or explosion risk. When the internal air pressure drops to a safe range, the safety relief valve (4) will automatically close and return to normal inflation.

[0021] The one-way check valve (3) not only prevents gas backflow but also provides overpressure protection. If the safety relief valve (4) fails for some reason (such as mechanical failure or blockage) and cannot open in time to release excess gas, the one-way check valve (3) will act as a second safety mechanism. When the gas pressure in the gas pipeline (22) continues to rise and exceeds the limit of the one-way check valve (3), the one-way check valve will automatically open to release some gas and reduce the pressure on the equipment.

[0022] The beneficial effects of this utility model are:

[0023] 1. This invention significantly improves testing safety: The dual overpressure protection mechanism, consisting of a safety relief valve and a one-way check valve, can quickly respond and release excess gas when the air pressure rises abnormally, preventing equipment damage or explosion risks and ensuring the safety of equipment and personnel. By integrating an airtight gauge, this device can monitor and display the internal air pressure value of the underwater unmanned vehicle in real time, allowing testing personnel to intuitively understand the current air pressure status, promptly detect and handle anomalies, and further enhance safety.

[0024] 2. This utility model offers quick and convenient connection, flexible gas control, and improved testing efficiency: The gas supply pipe connects to the airtight interface of the underwater unmanned vehicle via a quick-connect interface and an O-ring seal. This connection method not only ensures a tight and airtight connection but is also quick and convenient. The introduction of a copper internal thread ball valve allows testing personnel to flexibly control the gas inflow and easily start or stop the inflation process. Attached Figure Description

[0025] Figure 1 This is an installation diagram of the safety inflation device of this utility model;

[0026] Figure 2 This is a schematic diagram of the working state of the safety inflation device of this utility model;

[0027] Figure 3 yes Figure 2 A side view showing the working state;

[0028] Figure 4 yes Figure 3 The sectional view at point AA in the side view shown;

[0029] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the safety inflation device of this utility model;

[0030] Figure 6 This is a schematic diagram of the working state of the safety inflation device in Example 1;

[0031] Figure 7 This is a schematic diagram of the safety inflation device in Example 1;

[0032] In the figure, the numbers are as follows: 1—air tightness gauge; 2—inflation component; 21—inlet pipe; 211—inlet quick-connect interface; 22—air supply pipe; 221—inflation quick-connect interface; 3—one-way check valve; 4—safety pressure relief valve; 5—copper internal thread ball valve; 6—underwater unmanned vehicle; 61—air tightness interface; 62—O-ring seal. Detailed Implementation

[0033] To make the purpose, technical solution and advantages of this utility model patent clearer, the present utility model patent will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model patent. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of this utility model patent.

[0034] Example 1

[0035] like Figure 1 — Figure 7 The safety inflation device shown is used for airtightness testing of underwater unmanned vehicles, and includes:

[0036] Air tightness gauge 1, which is connected above the inflatable component 2, is used to measure the air pressure inside the underwater unmanned vehicle in real time;

[0037] Inflatable component 2, the inflatable component 2 includes an air inlet pipe 21 and an air delivery pipe 22, wherein the air delivery pipe 22 is connected to the lower part of the air tightness gauge 1, and the air inlet pipe 21 is connected to one side of the air delivery pipe 22;

[0038] One-way check valve 3 is connected to one side of the gas supply pipe 22 to ensure that gas flows into the underwater unmanned vehicle in a predetermined direction within the gas supply pipe 22.

[0039] Safety pressure relief valve 4 is connected to the end of the air inlet pipe 21 near the air delivery pipe 22. When the air pressure in the pipe exceeds the threshold, it releases pressure by venting.

[0040] A copper internal thread ball valve 5 is connected to the middle of the air inlet pipe 21 and is used to control the opening and closing of the gas inflow.

[0041] Furthermore, such as Figure 3 — Figure 5 As shown, one end of the air intake pipe 21 is connected to an air intake quick interface 211, which can be connected to an air compressor through a pipe.

[0042] Furthermore, such as Figure 3 — Figure 5 As shown, one end of the gas supply pipe 22 is connected to a quick gas supply interface 221, and the quick gas supply interface 221 has threads.

[0043] Specifically, such as Figure 1 — Figure 4 As shown, the air supply pipe 22 is connected to the airtight interface 61 of the underwater unmanned vehicle 6 via the air supply pipe quick interface 221 and the O-ring seal 62.

[0044] In summary, the specific usage process of this utility model is as follows:

[0045] In this embodiment, a one-way check valve 3 with an opening pressure of 0.05MPa and a spring-loaded safety relief valve 4 with a threshold pressure of 0.05MPa are selected. All components required for this device are prefabricated and assembled in the factory.

[0046] like Figure 1 — Figure 4 As shown, after placing the underwater unmanned vehicle 6 on the test platform, ensure that the quick-connect interface 221 of the air supply pipe of this device is aligned with the airtight interface 61 of the underwater unmanned vehicle 6, and then tighten and securely connect the quick-connect interface 221 of the air supply pipe and the airtight interface 61 with the O-ring seal 62.

[0047] Furthermore, connect the pipe to the air compressor to the quick-connect interface 211 of the air intake pipe, ensuring a tight connection.

[0048] Furthermore, such as Figure 6 As shown, after adjusting the air compressor output pressure to approximately 0.05 MPa, turn on the air compressor. Then open the copper internal wire ball valve 5 of this device to begin the inflation process. Simultaneously, observe the reading on the air tightness gauge 1 to ensure the air pressure remains stable within a safe range.

[0049] If an abnormal increase in gas pressure is detected, the safety relief valve 4 will automatically open to release excess gas. If the safety relief valve 4 fails, the one-way check valve 3 will function as a second safety mechanism.

[0050] After inflation is complete, close the copper inner wire ball valve 5 of this device, close the air compressor valve, then disconnect the connection between the quick inlet port 211 and the air compressor pipeline, disconnect the quick outlet port 221 and the underwater unmanned vehicle 6, and seal the airtight port 61. Then, the subsequent airtightness test can begin.

[0051] Finally, it should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A safety inflation device for airtightness testing of underwater unmanned vehicles, characterized in that, It includes: Air tightness gauge (1), which is connected above the inflation component (2) and is used to measure the air pressure value inside the underwater unmanned vehicle in real time; An inflation component (2) is provided, which includes an air inlet pipe (21) and an air delivery pipe (22), wherein the air delivery pipe (22) is connected below the air tightness gauge (1), and the air inlet pipe (21) is connected to one side of the air delivery pipe (22). One-way check valve (3), which is connected to one side of the gas pipeline (22) to ensure that the gas flows into the underwater unmanned vehicle in a predetermined direction in the gas pipeline (22); Safety pressure relief valve (4) is connected to one end of the air inlet pipe (21) near the air delivery pipe (22). When the air pressure in the pipe exceeds the threshold, it exhausts and releases pressure. A copper internal wire ball valve (5) is connected to the middle of the air inlet pipe (21) and is used to control the opening and closing of the gas inflow.

2. A safety inflation device for airtightness testing of underwater unmanned vehicles according to claim 1, characterized in that, One end of the air intake pipe (21) is connected to an air intake quick interface (211), which can be connected to an air compressor through a pipe.

3. A safety inflation device for airtightness testing of underwater unmanned vehicles according to claim 1, characterized in that, One end of the gas supply pipe (22) is connected to a quick gas supply pipe interface (221), which has threads.

4. A safety inflation device for airtightness testing of underwater unmanned vehicles according to claim 1, characterized in that, The air supply pipe (22) is connected to the airtight interface (61) of the underwater unmanned vehicle (6) via the air supply pipe quick interface (221) and O-ring seal (62).

Images