Air bottle calibration tool for aircraft escape slide

Abstract

The utility model discloses an aircraft escape slide gas cylinder calibration frock, including air pressure detection unit and deflation device, still include gas cylinder fixed seat, gas cylinder butt joint, gas pipeline, control module, display module and interactive module, deflation device is electric control valve, gas cylinder butt joint is connected with electric control valve through gas pipeline, air pressure detection unit is connected in series between gas cylinder butt joint and electric control valve, air pressure detection unit, electric control valve, display module, interactive module are electric connection with control module respectively, when using, gas cylinder is placed on gas cylinder fixed seat, and is connected with gas cylinder butt joint, and air pressure detection unit detects the gas pressure in gas cylinder, and will data transmission give control module, and control module controls electric control valve action according to the gas pressure data detected by air pressure detection unit and carries out the deflation to gas cylinder. Simplify the calibration process of aircraft escape slide gas cylinder, and the operator can more efficiently, more safely detect and correct gas cylinder.

Description

Technical Field

[0001] This utility model relates to a tooling for testing aircraft parts, and more particularly to a tooling for calibrating air cylinders for aircraft escape slides. Background Technology

[0002] Aircraft escape slides are emergency escape devices on aircraft, typically designed for use in emergencies such as fires or unexpected landings to help passengers and crew evacuate the aircraft quickly and safely. Escape slides are usually used in conjunction with an inflation system to ensure they form a sturdy, inflatable slide when deployed. This design reduces the impact force during descent, improving safety during escape. Both the slides and their inflation systems require overhauling every three to five years. The final step in the overhaul process is calibrating the pressure inside the gas cylinder to meet the requirements of the CMM (Component Maintenance Manual). Currently, the commonly used tooling involves manually installing a pressure gauge into the slide's gas cylinder to determine if the pressure meets the manual's requirements. If not, the gas is manually released until it is within acceptable limits. During calibration, the operator must continuously monitor the pressure gauge and compare it to the target pressure. Once the requirement is met, the release valve is closed. This process is time-consuming, labor-intensive, and carries certain safety risks (as the gas cylinder contains high-pressure gas). Utility Model Content

[0003] In view of the above-mentioned shortcomings of the current methods for calibrating aircraft escape slide gas cylinders, this utility model provides an aircraft escape slide gas cylinder calibration fixture, which can realize automatic detection and calibration of gas cylinders and improve safety.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0005] A calibration fixture for aircraft escape slide gas cylinders includes a pressure detection unit and a venting device, as well as a gas cylinder mounting base, a gas cylinder interface, a gas pipeline, a control module, a display module, and an interaction module. The venting device is an electrically controlled valve. The gas cylinder interface is connected to the electrically controlled valve via the gas pipeline. The pressure detection unit is connected in series between the gas cylinder interface and the electrically controlled valve. The pressure detection unit, the electrically controlled valve, the display module, and the interaction module are all electrically connected to the control module. In use, the gas cylinder is placed on the gas cylinder mounting base and connected to the gas cylinder interface. The pressure detection unit detects the gas pressure inside the gas cylinder and transmits the data to the control module. The control module controls the electrically controlled valve to vent the gas cylinder based on the pressure data detected by the pressure detection unit.

[0006] According to one aspect of the present invention, the gas cylinder fixing seat includes a cylinder body fixing seat and a cylinder mouth fixing seat; the cylinder body fixing seat includes a front stop, a rear stop, and an electric slide rail; the rear stop is slidably disposed on the electric slide rail; the gas cylinder connection interface is disposed on the cylinder mouth fixing seat.

[0007] According to one aspect of the present invention, the bottle neck fixing seat includes a movable track; the bottle neck fixing seat is slidably disposed on the movable track.

[0008] According to one aspect of this utility model, the display module is an electronic display screen.

[0009] According to one aspect of this utility model, the interaction module is a button or a touch screen.

[0010] According to one aspect of this utility model, the control module includes a microcontroller, a power supply module, an analog-to-digital converter module, and a relay.

[0011] According to one aspect of this utility model, the microcontroller is connected to the control terminal of the relay; the control terminal of the electrically controlled valve is connected to the operating contact of the relay.

[0012] According to one aspect of this utility model, the interactive module further includes a manual venting switch; the manual venting switch is connected to the control module.

[0013] Advantages of this utility model:

[0014] The calibration process for aircraft escape slide gas cylinders has been simplified, allowing operators to inspect and calibrate the cylinders more efficiently and safely. The cylinder fixing bracket helps to secure the cylinders and prevent them from moving. During operation, the control module can automatically perform operations such as pressure detection and deflation, resulting in higher safety, higher efficiency, and more accurate calibration. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an aircraft escape slide gas cylinder calibration fixture according to the present invention;

[0017] Figure 2 This is a control flowchart of a calibration fixture for an aircraft escape slide gas cylinder as described in this utility model.

[0018] Legend: 1. Air pressure detection unit; 2. Electric control valve; 31. Front stop; 32. Rear stop; 33. Electric slide rail; 34. Bottle mouth fixing seat; 35. Moving track; 4. Gas cylinder connection interface; 5. Gas pipeline; 6. Control module; 7. Display module; 8. Interaction module. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] like Figure 1 As shown, an aircraft escape slide gas cylinder calibration fixture includes a pressure detection unit 1 and a venting device, as well as a gas cylinder mounting base, a gas cylinder interface 4, a gas pipeline 5, a control module 6, a display module 7, and an interaction module 8. The venting device is an electrically controlled valve 2. The gas cylinder interface 4 is connected to the electrically controlled valve 2 through the gas pipeline 5. The pressure detection unit 1 is connected in series between the gas cylinder interface 4 and the electrically controlled valve 2. The pressure detection unit 1, the electrically controlled valve 2, the display module 7, and the interaction module 8 are electrically connected to the control module 6. In use, the gas cylinder is placed on the gas cylinder mounting base and connected to the gas cylinder interface 4. The pressure detection unit 1 detects the gas pressure inside the gas cylinder and transmits the data to the control module 6. The control module 6 controls the electrically controlled valve 2 to vent the gas cylinder based on the pressure data detected by the pressure detection unit 1.

[0022] The gas cylinder fixing seat includes a cylinder body fixing seat and a cylinder mouth fixing seat 34; the cylinder body fixing seat includes a front stop 31, a rear stop 32 and an electric slide rail 33; the rear stop 32 is slidably mounted on the electric slide rail 33; the gas cylinder docking interface 4 is mounted on the cylinder mouth fixing seat 34.

[0023] Furthermore, the cylinder mouth fixing seat 34 is also provided with a moving track 35; the cylinder mouth fixing seat 34 is slidably set on the moving track 35; the cylinder fixing seat is set at a certain angle, which can reduce the labor intensity of personnel carrying the cylinder when calibrating the cylinder; when in use, the operator places the cylinder on the cylinder fixing seat, with the main body of the cylinder located between the front stop 31 and the rear stop 32, and then the electric slide rail 33 drives the rear stop 32 to move and clamp and fix the main body of the cylinder. Then the operator moves the cylinder mouth fixing seat 34 to align the cylinder interface 4 with the cylinder nozzle, and then connects the cylinder interface 4 with the cylinder nozzle.

[0024] In practical applications, the display module 7 is an electronic display screen that can display the current measured air pressure value, the set air pressure value, and the setting operation interface in the form of data or graphics; the interaction module 8 is used to adjust the air pressure set value and control the gas cylinder release process; in practical applications, the interaction module 8 can be a button or a touch screen.

[0025] Example 2

[0026] like Figure 1 and Figure 2 As shown, an aircraft escape slide gas cylinder calibration fixture includes a pressure detection unit 1 and a venting device, as well as a gas cylinder mounting base, a gas cylinder interface 4, a gas pipeline 5, a control module 6, a display module 7, and an interaction module 8. The venting device is an electrically controlled valve 2. The gas cylinder interface 4 is connected to the electrically controlled valve 2 through the gas pipeline 5. The pressure detection unit 1 is connected in series between the gas cylinder interface 4 and the electrically controlled valve 2. The pressure detection unit 1, the electrically controlled valve 2, the display module 7, and the interaction module 8 are electrically connected to the control module 6. In use, the gas cylinder is placed on the gas cylinder mounting base and connected to the gas cylinder interface 4. The pressure detection unit 1 detects the gas pressure inside the gas cylinder and transmits the data to the control module 6. The control module 6 controls the electrically controlled valve 2 to vent the gas cylinder based on the pressure data detected by the pressure detection unit 1.

[0027] The gas cylinder fixing seat includes a cylinder body fixing seat and a cylinder mouth fixing seat 34; the cylinder body fixing seat includes a front stop 31, a rear stop 32 and an electric slide rail 33; the rear stop 32 is slidably mounted on the electric slide rail 33; the gas cylinder docking interface 4 is mounted on the cylinder mouth fixing seat 34.

[0028] Furthermore, the cylinder mouth fixing seat 34 is also provided with a moving track 35; the cylinder mouth fixing seat 34 is slidably set on the moving track 35; the cylinder fixing seat is set at a certain angle, which can reduce the labor intensity of personnel carrying the cylinder when calibrating the cylinder; when in use, the operator places the cylinder on the cylinder fixing seat, with the main body of the cylinder located between the front stop 31 and the rear stop 32, and then the electric slide rail 33 drives the rear stop 32 to move and clamp and fix the main body of the cylinder. Then the operator moves the cylinder mouth fixing seat 34 to align the cylinder interface 4 with the cylinder nozzle, and then connects the cylinder interface 4 with the cylinder nozzle.

[0029] In practical applications, the display module 7 is an electronic display screen that can display the current measured air pressure value, the set air pressure value, and the setting operation interface in the form of data or graphics; the interaction module 8 is used to adjust the air pressure set value and control the gas cylinder release process; in practical applications, the interaction module 8 can be a button or a touch screen.

[0030] Specifically, control module 6 includes a microcontroller, a power supply module, an analog-to-digital converter module, and relays; the microcontroller is connected to the control terminal of the relay; the control terminal of the electric valve 2 is connected to the actuating contact of the relay; in actual use, the microcontroller in control module 6, acting as the main controller, performs... Figure 2 The process shown is as follows:

[0031] After the gas cylinder is installed and connected in place, the gas pressure detection unit 1 detects the actual pressure of the gas cylinder and transmits it to the microcontroller. The microcontroller compares the real-time pressure value with the set pressure value. When the actual pressure is greater than the set pressure, the microcontroller controls the solenoid valve 2 to open (the microcontroller sends a control signal to the relay, and the relay contacts actuate to control the solenoid valve 2 to open), and the gas cylinder releases gas. When the actual pressure value of the gas cylinder meets the set pressure (within a certain range near the set pressure value), the microcontroller controls the solenoid valve 2 to close (the microcontroller sends a control signal to the relay, and the relay contacts actuate to control the solenoid valve 2 to close).

[0032] Optionally, the interaction module 8 also includes a manual venting switch, which can be a button connected to the control module 6 or a physical switch that directly controls the electric control valve 2. When necessary, the gas cylinder can be manually vented through the manual venting switch.

[0033] Advantages of this utility model:

[0034] The calibration process for aircraft escape slide gas cylinders has been simplified, allowing operators to inspect and calibrate the cylinders more efficiently and safely. The cylinder fixing bracket helps to secure the cylinders and prevent them from moving. During operation, the control module can automatically perform operations such as pressure detection and deflation, resulting in higher safety, higher efficiency, and more accurate calibration.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A calibration fixture for an aircraft escape slide gas cylinder, comprising a pressure detection unit (1) and a deflation device, characterized in that, It also includes a gas cylinder mounting base, a gas cylinder interface (4), a gas pipeline (5), a control module (6), a display module (7), and an interaction module (8); the venting device is an electric control valve (2); the gas cylinder interface (4) is connected to the electric control valve (2) through the gas pipeline (5); the pressure detection unit (1) is connected in series between the gas cylinder interface (4) and the electric control valve (2); the pressure detection unit (1), the electric control valve (2), the display module (7), and the interaction module (8) are electrically connected to the control module (6) respectively; when in use, the gas cylinder is placed on the gas cylinder mounting base and connected to the gas cylinder interface (4), the pressure detection unit (1) detects the gas pressure in the gas cylinder and transmits the data to the control module (6); the control module (6) controls the electric control valve (2) to vent the gas cylinder according to the gas pressure data detected by the pressure detection unit (1).

2. The calibration fixture for the gas cylinder of an aircraft escape slide according to claim 1, characterized in that, The gas cylinder fixing seat includes a cylinder body fixing seat and a cylinder mouth fixing seat (34); the cylinder body fixing seat includes a front stop (31), a rear stop (32) and an electric slide rail (33); the rear stop (32) is slidably mounted on the electric slide rail (33); the gas cylinder docking interface (4) is mounted on the cylinder mouth fixing seat (34).

3. The calibration fixture for the gas cylinder of an aircraft escape slide according to claim 2, characterized in that, The bottle neck fixing seat (34) includes a moving track (35); the bottle neck fixing seat (34) is slidably disposed on the moving track (35).

4. The calibration fixture for air cylinders used in aircraft escape slides according to claim 1, characterized in that, The display module (7) is an electronic display screen.

5. The calibration fixture for air cylinders used in aircraft escape slides according to claim 1, characterized in that, The interaction module (8) is a button or a touch screen.

6. The calibration fixture for air cylinders used in aircraft escape slides according to claim 1, characterized in that, The control module (6) includes a microcontroller, a power supply module, an analog-to-digital converter module, and a relay.

7. The calibration fixture for air cylinders used in aircraft escape slides according to claim 6, characterized in that, The microcontroller is connected to the control terminal of the relay; the control terminal of the electric control valve (2) is connected to the action contact of the relay.

8. The calibration fixture for air cylinders used in aircraft escape slides according to claim 5, characterized in that, The interactive module (8) also includes a manual venting switch; the manual venting switch is connected to the control module (6).

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