CN204255467U - Embedded style fuel tank fluid level meter - Google Patents

Abstract

Embedded fuel tank liquid level gauge, including float, adapter and scale; wherein, the adapter is fixed on the wing oil tank cleaning port cover, one end of the float is located in the wing oil tank, and the other end is nested in the adapter and extends out of the rotor The joint, the scale is nested on the float protruding from the adapter, and fixed on the adapter through the outer nut. In the utility model, the meter is fixed on the cleaning port cover of the wing oil tank, and is under the same air pressure as the wing oil tank. Using the principle of buoyancy, the liquid level display is not disturbed by the pressure and vibration in the oil tank to measure the liquid level height and volume in the oil tank. Small size, accurate measurement; at the same time, it simplifies the difficulty of cleaning the fuel tank and improves the efficiency of cleaning the fuel tank.

Description

Embedded fuel tank level gauge

technical field

The utility model relates to the technical field of aircraft fuel tank liquid level measurement, in particular to an embedded fuel tank liquid level meter.

Background technique

Due to the complex structure of the wing fuel tank and the narrow internal space, the pressure and liquid level change rapidly during the cleaning process of the aircraft fuel tank. The traditional float level gauge is outside the fuel tank system and cannot accurately and timely measure the oil level in the fuel tank. The cleaning work brings certain difficulties; at the same time, the traditional float level gauge is also one of the factors that cause measurement accuracy due to the influence of the internal pressure of the fuel tank. Therefore, how to improve the existing equipment so that it can be under the same air pressure as the fuel tank, and the liquid level display is not disturbed by the pressure and vibration in the fuel tank, and has a small volume, which can accurately reflect the height of the liquid level, has become a technology in the art Technical problems that personnel urgently need to solve.

Contents of the invention

The technical problem solved by the utility model is to provide an embedded oil tank liquid level meter to solve the above-mentioned shortcomings in the background technology.

The technical problem solved by the utility model adopts the following technical solutions to realize:

Embedded fuel tank liquid level gauge, including float, adapter and scale; among them, the adapter is fixed on the wing oil tank cleaning port cover, one end of the float is located in the wing oil tank, and the other end is nested in the adapter and extends out of the rotor The joint, the scale is nested on the float protruding from the adapter, and fixed on the adapter through the outer nut.

In the utility model, a pointer is arranged on one end of the float nested in the adapter for displaying the state of the float.

In the present utility model, a clamp is provided on one end of the float nested in the adapter for displaying the state of the float.

In the utility model, a rubber washer is arranged between the adapter and the outer nut for sealing.

In the utility model, the meter is fixed on the cleaning port cover of the wing oil tank. At this time, the meter and the wing oil tank are under the same air pressure. Using the principle of buoyancy, the hollow float acts as a pointer display liquid in the glass tube under the buoyancy of the oil. Because it is under the internal air pressure of the fuel tank, the float is not affected by the changing pressure and vibration during cleaning; the operator can pre-adjust the pointer or clip according to the actual situation, and set the position of the float. When the liquid level in the fuel tank changes , the buoyancy pushes the float to move up and down, and the upward movement of the float pushes the scale upward to display the height, and the liquid level change in the fuel tank can be directly displayed on the scale. The float is not affected by the changing pressure and vibration during cleaning, and can accurately measure the liquid level in the wing fuel tank high.

Beneficial effects: in the utility model, the meter is fixed on the cleaning port cover of the wing fuel tank, and is under the same air pressure as the wing fuel tank. Using the principle of buoyancy, the liquid level display is not disturbed by the pressure and vibration in the fuel tank to measure the liquid level in the fuel tank Height, small size, accurate measurement; at the same time, it simplifies the difficulty of cleaning the fuel tank and improves the efficiency of cleaning the fuel tank.

Description of drawings

Fig. 1 is the installation diagram of the preferred embodiment of the present utility model.

Fig. 2 is a schematic structural view of a preferred embodiment of the present invention.

Fig. 3 is a sectional view of A-A in Fig. 2 .

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific illustrations.

See Figures 1 to 3 for the embedded fuel tank liquid level gauge, which includes a float 1, an adapter 2, a casing nut 3, a pointer 4, a rubber gasket 5, a scale 6 and a wing oil tank 7; wherein, the adapter 2 is fixed on the aircraft On the cleaning port cover of the wing fuel tank 7, one end of the float 1 is located in the wing fuel tank 7, and the other end is nested in the adapter 2 and extends out. 1, and is fixed by the outer nut 3, and the rubber gasket 5 is installed between the adapter 2 and the outer nut 3 for sealing.

In this embodiment, the meter is fixed on the cleaning port of the wing oil tank 7. At this time, the meter and the wing oil tank 7 are under the same air pressure. The operator can pre-adjust the pointer 4 according to the actual situation, and set the position of the float 1. When the liquid level in the fuel tank changes, the buoyancy pushes the float 1 to move up and down, and the float 1 moves upward to push the scale 6 to display the height, and the change of the liquid level in the fuel tank can be directly displayed on the scale 6. When the float 1 is not cleaned Under the influence of changing pressure and vibration, the liquid level height in the wing fuel tank 7 can be accurately measured.

In this embodiment, the pointer 4 can be replaced by a clip.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents .

Claims (4)

1. Embedded fuel tank liquid level gauge, including float, adapter and scale; its characteristic is that the adapter is fixed on the wing oil tank cleaning port cover, one end of the float is located in the wing oil tank, and the other end is nested in the adapter And extend out of the adapter, the scale is nested on the float extending out of the adapter, and fixed on the adapter through the outer nut. 2. The liquid level gauge for an embedded fuel tank according to claim 1, characterized in that a pointer is provided on one end of the float nested in the adapter. 3. The embedded oil tank liquid level gauge according to claim 1, characterized in that a clip is provided on one end of the float nested in the adapter. 4. The embedded fuel tank liquid level gauge according to claim 1, characterized in that a rubber washer is arranged between the adapter and the casing nut.