CN204674838U - Lampshade fixing mechanism of aircraft - Google Patents

Abstract

The utility model provides a lamp shade fixing mechanism of an aircraft, which comprises a lamp chamber arranged on the body of the aircraft and used for accommodating a lamp, and a lamp shade matched with the lamp chamber, wherein the lamp chamber comprises an annular side wall, and at least two mounting holes are arranged on the annular side wall in a centrosymmetric manner; the lampshade is provided with a buckle bulge matched with the mounting hole; the buckle bulge comprises an extension part extending along the vertical direction, and a boss extending towards the outer side of the lampshade is arranged at the free end of the extension part pointing to the lamp chamber; when the buckle bulge is loosely matched with the mounting hole, a transition surface is arranged on the vertical side wall which is in contact with the mounting hole. The utility model discloses a lamp shade fixing mechanism of aircraft simple structure, the dismouting is swiftly convenient, has effectively reduced the dead weight of aircraft simultaneously.

Description

Aircraft lampshade fixing mechanism

technical field

The utility model relates to an aircraft, in particular to a lampshade fixing mechanism of the aircraft.

Background technique

In the existing technology, the lampshade of the aircraft is mostly connected by ordinary snap-fits. When dismounting, it needs to be pulled open from the inside to be disassembled successfully. This tough disassembly method will lead to cumbersome disassembly or snap-fitting of parts such as the fuselage in the early stage. Structural damage. In addition, there is also a fixing method using fasteners such as screws, but this fixing method is not convenient for installing and disassembling the lampshade. In addition, the use of screw connections will increase the weight of the aircraft itself. Therefore, the fixing methods of the above two kinds of lampshades are not convenient for the disassembly of the internal indicator light and the motor, as well as cleaning, maintenance and upgrading.

Utility model content

The technical problem to be solved by the utility model is to provide a lampshade fixing mechanism for an aircraft in order to overcome the defect that the lampshade of an aircraft in the prior art is inconvenient to disassemble.

The utility model solves the problems of the technologies described above through the following technical solutions:

A lampshade fixing mechanism for an aircraft, which includes a lamphouse arranged on the fuselage of the aircraft for accommodating a lamp, and a lampshade matched with the lamphouse, and is characterized in that:

The lamp chamber includes an annular side wall, and at least two installation holes are symmetrically arranged on the annular side wall;

The lampshade is provided with a buckle protrusion that matches the mounting hole; the buckle protrusion includes an extension extending in the vertical direction, and the free end of the extension pointing to the lamp chamber is provided with a A boss extending outside; a transition surface is provided on the vertical side wall that contacts the mounting hole when the buckle protrusion is loosely matched with the mounting hole. When disassembling, just rotate the lampshade toward the vertical side wall.

Wherein, the transition surface is a convex arc surface protruding to the outside of the lampshade.

Wherein, the upper surface of the boss is a smooth slope, and the angle between the slope and the extension is an acute angle. The slope is used to reduce friction when installing the lampshade, so as to facilitate pushing the buckle protrusion of the lampshade into the corresponding installation hole.

Wherein, the upper surface of the boss is an upwardly convex arc surface protruding toward the outside of the lampshade.

Wherein, the installation holes on the annular side wall are arranged symmetrically about the center.

Wherein, the mounting hole is a rectangular hole.

Wherein, the outer surface of the lampshade is provided with at least one friction part. The friction part is easy to hold by hand, and it is convenient for the hand to exert force on the lampshade, so as to perform disassembly and installation operations.

The positive and progressive effects of the utility model are: the lampshade fixing mechanism of the aircraft of the utility model has a simple structure, quick and convenient disassembly and assembly, and simultaneously effectively reduces the dead weight of the aircraft.

Description of drawings

FIG. 1 is a schematic structural view of a lampshade of an aircraft in an embodiment of the present invention.

FIG. 2 is a structural schematic view of the lampshade in FIG. 1 after being assembled to the lamp house of the aircraft.

Fig. 3 is a schematic diagram of the structure cut along the section line A-A in Fig. 2 .

FIG. 4 is a schematic structural view of the light chamber of the fuselage of the aircraft in the present invention.

Fig. 5 is an enlarged view of part A in Fig. 4 .

Detailed ways

A preferred embodiment is given below, and the utility model is described more clearly and completely in conjunction with the accompanying drawings.

Example 1

As shown in FIGS. 1-5 , the lampshade fixing mechanism of the aircraft in this embodiment includes four sets of hemispherical lampshades 100 and four lamp chambers 200 arranged on the fuselage of the aircraft for accommodating lamps. Each lamp house 200 is provided with an annular side wall 21 , and three rectangular installation holes 22 are symmetrically arranged on the annular side wall 21 .

The lampshade 100 is provided with a buckle protrusion 1 that is matched with the installation hole 22; A boss 12 extending toward the outside of the lampshade 100 is provided at the free end; a transition surface 13 is provided on the vertical side wall that contacts the installation hole 22 when the buckle protrusion 1 is loosely matched with the installation hole 22 . The transition surface 13 is a convex arc surface protruding to the outside of the lampshade 100 . As shown in FIG. 1 , it is sufficient to rotate the lampshade 100 from right to left in a direction perpendicular to the paper plane during disassembly.

The upper surface of the boss 12 is an upper convex arc surface 14 protruding toward the outside of the lampshade 100 , and the upper convex arc surface 14 can reduce the friction force between the boss 12 and the upper contact surface of the mounting hole 22 during assembly.

In addition to the convex arc surface, the upper surface of the boss can also be a smooth slope, and the angle between the slope and the extension part 11 is an acute angle.

In addition, in order to facilitate the hand to hold the lampshade and apply force to the lampshade during assembly and disassembly, several friction parts 15 are provided on the outer surface of the lampshade 100 .

Although the specific implementation of the utility model has been described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims (7)

1. A lampshade fixing mechanism for an aircraft, which comprises a lamphouse arranged on the fuselage of the aircraft for accommodating the lamp, and a lampshade coordinating with the lamphouse, characterized in that: The lamp chamber includes an annular side wall, and at least two installation holes are arranged on the annular side wall; The lampshade is provided with a buckle protrusion that matches the mounting hole; the buckle protrusion includes an extension extending in the vertical direction, and the free end of the extension pointing to the lamp chamber is provided with a A boss extending outside; when the buckle protrusion is loosely matched with the installation hole, a transition surface is provided on the vertical side wall in contact with the installation hole. 2 . The aircraft light cover fixing mechanism according to claim 1 , wherein the transition surface is a convex arc surface protruding toward the outside of the light cover. 3 . 3 . The aircraft lampshade fixing mechanism according to claim 1 , wherein the upper surface of the boss is a smooth slope, and the angle between the slope and the extension is an acute angle. 4 . 4 . The aircraft lampshade fixing mechanism according to claim 1 , wherein the upper surface of the boss is an upward convex arc protruding toward the outside of the lampshade. 5 . 5 . The aircraft lampshade fixing mechanism according to claim 1 , wherein the installation holes on the annular side wall are arranged symmetrically about the center. 6 . 6. The aircraft lampshade fixing mechanism according to any one of claims 1-5, wherein the mounting hole is a rectangular hole. 7 . The aircraft light cover fixing mechanism according to claim 6 , wherein at least one friction portion is provided on the outer surface of the light cover. 7 .